^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2004 Infinicon Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2004 Intel Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2004 Topspin Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2004 Voltaire Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #ifndef IB_VERBS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define IB_VERBS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/kref.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/rwsem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/irq_poll.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <uapi/linux/if_ether.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <net/ipv6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <net/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/refcount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/if_link.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/mmu_notifier.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/cgroup_rdma.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/irqflags.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/preempt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <linux/dim.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <uapi/rdma/ib_user_verbs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <rdma/rdma_counter.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <rdma/restrack.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include <rdma/signature.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include <uapi/rdma/rdma_user_ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #include <uapi/rdma/ib_user_ioctl_verbs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define IB_FW_VERSION_NAME_MAX ETHTOOL_FWVERS_LEN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct ib_umem_odp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct ib_uqp_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct ib_usrq_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct ib_uwq_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct rdma_cm_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) extern struct workqueue_struct *ib_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) extern struct workqueue_struct *ib_comp_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) extern struct workqueue_struct *ib_comp_unbound_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct ib_ucq_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) __printf(3, 4) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) void ibdev_printk(const char *level, const struct ib_device *ibdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) void ibdev_emerg(const struct ib_device *ibdev, const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) void ibdev_alert(const struct ib_device *ibdev, const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) void ibdev_crit(const struct ib_device *ibdev, const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) void ibdev_err(const struct ib_device *ibdev, const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) void ibdev_warn(const struct ib_device *ibdev, const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) void ibdev_notice(const struct ib_device *ibdev, const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) void ibdev_info(const struct ib_device *ibdev, const char *format, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #if defined(CONFIG_DYNAMIC_DEBUG) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define ibdev_dbg(__dev, format, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) dynamic_ibdev_dbg(__dev, format, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) void ibdev_dbg(const struct ib_device *ibdev, const char *format, ...) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define ibdev_level_ratelimited(ibdev_level, ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static DEFINE_RATELIMIT_STATE(_rs, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) DEFAULT_RATELIMIT_INTERVAL, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) DEFAULT_RATELIMIT_BURST); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (__ratelimit(&_rs)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) ibdev_level(ibdev, fmt, ##__VA_ARGS__); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define ibdev_emerg_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ibdev_level_ratelimited(ibdev_emerg, ibdev, fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define ibdev_alert_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) ibdev_level_ratelimited(ibdev_alert, ibdev, fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #define ibdev_crit_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) ibdev_level_ratelimited(ibdev_crit, ibdev, fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #define ibdev_err_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) ibdev_level_ratelimited(ibdev_err, ibdev, fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define ibdev_warn_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) ibdev_level_ratelimited(ibdev_warn, ibdev, fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define ibdev_notice_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) ibdev_level_ratelimited(ibdev_notice, ibdev, fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define ibdev_info_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) ibdev_level_ratelimited(ibdev_info, ibdev, fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #if defined(CONFIG_DYNAMIC_DEBUG) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /* descriptor check is first to prevent flooding with "callbacks suppressed" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define ibdev_dbg_ratelimited(ibdev, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static DEFINE_RATELIMIT_STATE(_rs, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) DEFAULT_RATELIMIT_INTERVAL, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) DEFAULT_RATELIMIT_BURST); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (DYNAMIC_DEBUG_BRANCH(descriptor) && __ratelimit(&_rs)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) __dynamic_ibdev_dbg(&descriptor, ibdev, fmt, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) ##__VA_ARGS__); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) __printf(2, 3) __cold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) void ibdev_dbg_ratelimited(const struct ib_device *ibdev, const char *format, ...) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) union ib_gid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) u8 raw[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) __be64 subnet_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) __be64 interface_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) } global;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) extern union ib_gid zgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) enum ib_gid_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) IB_GID_TYPE_IB = IB_UVERBS_GID_TYPE_IB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) IB_GID_TYPE_ROCE = IB_UVERBS_GID_TYPE_ROCE_V1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) IB_GID_TYPE_ROCE_UDP_ENCAP = IB_UVERBS_GID_TYPE_ROCE_V2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) IB_GID_TYPE_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define ROCE_V2_UDP_DPORT 4791
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) struct ib_gid_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct net_device __rcu *ndev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) union ib_gid gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) enum ib_gid_type gid_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) u16 index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) u8 port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) /* set the local administered indication */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) IB_SA_WELL_KNOWN_GUID = BIT_ULL(57) | 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) enum rdma_transport_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) RDMA_TRANSPORT_IB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) RDMA_TRANSPORT_IWARP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) RDMA_TRANSPORT_USNIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) RDMA_TRANSPORT_USNIC_UDP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) RDMA_TRANSPORT_UNSPECIFIED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) enum rdma_protocol_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) RDMA_PROTOCOL_IB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) RDMA_PROTOCOL_IBOE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) RDMA_PROTOCOL_IWARP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) RDMA_PROTOCOL_USNIC_UDP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) __attribute_const__ enum rdma_transport_type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) rdma_node_get_transport(unsigned int node_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) enum rdma_network_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) RDMA_NETWORK_IB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) RDMA_NETWORK_ROCE_V1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) RDMA_NETWORK_IPV4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) RDMA_NETWORK_IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type network_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) if (network_type == RDMA_NETWORK_IPV4 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) network_type == RDMA_NETWORK_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) return IB_GID_TYPE_ROCE_UDP_ENCAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) else if (network_type == RDMA_NETWORK_ROCE_V1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return IB_GID_TYPE_ROCE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) return IB_GID_TYPE_IB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) static inline enum rdma_network_type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) rdma_gid_attr_network_type(const struct ib_gid_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) if (attr->gid_type == IB_GID_TYPE_IB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return RDMA_NETWORK_IB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (attr->gid_type == IB_GID_TYPE_ROCE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) return RDMA_NETWORK_ROCE_V1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (ipv6_addr_v4mapped((struct in6_addr *)&attr->gid))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return RDMA_NETWORK_IPV4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return RDMA_NETWORK_IPV6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) enum rdma_link_layer {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) IB_LINK_LAYER_UNSPECIFIED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) IB_LINK_LAYER_INFINIBAND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) IB_LINK_LAYER_ETHERNET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) enum ib_device_cap_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) IB_DEVICE_RESIZE_MAX_WR = (1 << 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) IB_DEVICE_BAD_PKEY_CNTR = (1 << 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) IB_DEVICE_BAD_QKEY_CNTR = (1 << 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) IB_DEVICE_RAW_MULTI = (1 << 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) IB_DEVICE_AUTO_PATH_MIG = (1 << 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) IB_DEVICE_CHANGE_PHY_PORT = (1 << 5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) IB_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) IB_DEVICE_CURR_QP_STATE_MOD = (1 << 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) IB_DEVICE_SHUTDOWN_PORT = (1 << 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) /* Not in use, former INIT_TYPE = (1 << 9),*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) IB_DEVICE_PORT_ACTIVE_EVENT = (1 << 10),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) IB_DEVICE_SYS_IMAGE_GUID = (1 << 11),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) IB_DEVICE_RC_RNR_NAK_GEN = (1 << 12),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) IB_DEVICE_SRQ_RESIZE = (1 << 13),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) IB_DEVICE_N_NOTIFY_CQ = (1 << 14),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) * This device supports a per-device lkey or stag that can be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) * used without performing a memory registration for the local
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) * memory. Note that ULPs should never check this flag, but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) * instead of use the local_dma_lkey flag in the ib_pd structure,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * which will always contain a usable lkey.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) IB_DEVICE_LOCAL_DMA_LKEY = (1 << 15),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /* Reserved, old SEND_W_INV = (1 << 16),*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) IB_DEVICE_MEM_WINDOW = (1 << 17),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) * Devices should set IB_DEVICE_UD_IP_SUM if they support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * insertion of UDP and TCP checksum on outgoing UD IPoIB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) * messages and can verify the validity of checksum for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) * incoming messages. Setting this flag implies that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) IB_DEVICE_UD_IP_CSUM = (1 << 18),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) IB_DEVICE_UD_TSO = (1 << 19),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) IB_DEVICE_XRC = (1 << 20),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * This device supports the IB "base memory management extension",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) * which includes support for fast registrations (IB_WR_REG_MR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs). This flag should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) * also be set by any iWarp device which must support FRs to comply
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) * to the iWarp verbs spec. iWarp devices also support the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) * stag.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) IB_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1 << 22),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) IB_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) IB_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) IB_DEVICE_RC_IP_CSUM = (1 << 25),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) /* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) IB_DEVICE_RAW_IP_CSUM = (1 << 26),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * Devices should set IB_DEVICE_CROSS_CHANNEL if they
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * support execution of WQEs that involve synchronization
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * of I/O operations with single completion queue managed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * by hardware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) IB_DEVICE_CROSS_CHANNEL = (1 << 27),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) IB_DEVICE_INTEGRITY_HANDOVER = (1 << 30),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) IB_DEVICE_SG_GAPS_REG = (1ULL << 32),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) IB_DEVICE_RDMA_NETDEV_OPA = (1ULL << 35),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /* The device supports padding incoming writes to cacheline. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) IB_DEVICE_PCI_WRITE_END_PADDING = (1ULL << 36),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) IB_DEVICE_ALLOW_USER_UNREG = (1ULL << 37),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) enum ib_atomic_cap {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) IB_ATOMIC_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) IB_ATOMIC_HCA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) IB_ATOMIC_GLOB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) enum ib_odp_general_cap_bits {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) IB_ODP_SUPPORT = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) IB_ODP_SUPPORT_IMPLICIT = 1 << 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) enum ib_odp_transport_cap_bits {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) IB_ODP_SUPPORT_SEND = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) IB_ODP_SUPPORT_RECV = 1 << 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) IB_ODP_SUPPORT_WRITE = 1 << 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) IB_ODP_SUPPORT_READ = 1 << 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) IB_ODP_SUPPORT_ATOMIC = 1 << 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) IB_ODP_SUPPORT_SRQ_RECV = 1 << 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct ib_odp_caps {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) uint64_t general_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) uint32_t rc_odp_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) uint32_t uc_odp_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) uint32_t ud_odp_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) uint32_t xrc_odp_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) } per_transport_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) struct ib_rss_caps {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) /* Corresponding bit will be set if qp type from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * 'enum ib_qp_type' is supported, e.g.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * supported_qpts |= 1 << IB_QPT_UD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) u32 supported_qpts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) u32 max_rwq_indirection_tables;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) u32 max_rwq_indirection_table_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) enum ib_tm_cap_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) /* Support tag matching with rendezvous offload for RC transport */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) IB_TM_CAP_RNDV_RC = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) struct ib_tm_caps {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) /* Max size of RNDV header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) u32 max_rndv_hdr_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) /* Max number of entries in tag matching list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) u32 max_num_tags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /* From enum ib_tm_cap_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* Max number of outstanding list operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) u32 max_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) /* Max number of SGE in tag matching entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) u32 max_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct ib_cq_init_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) unsigned int cqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) u32 comp_vector;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) enum ib_cq_attr_mask {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) IB_CQ_MODERATE = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct ib_cq_caps {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) u16 max_cq_moderation_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) u16 max_cq_moderation_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) struct ib_dm_mr_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) u64 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) u32 access_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) struct ib_dm_alloc_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) u64 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) u32 alignment;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) struct ib_device_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) u64 fw_ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) __be64 sys_image_guid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) u64 max_mr_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) u64 page_size_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) u32 vendor_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) u32 vendor_part_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) u32 hw_ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) int max_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) int max_qp_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) u64 device_cap_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) int max_send_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) int max_recv_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) int max_sge_rd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) int max_cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) int max_cqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) int max_mr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) int max_pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) int max_qp_rd_atom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) int max_ee_rd_atom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) int max_res_rd_atom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) int max_qp_init_rd_atom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) int max_ee_init_rd_atom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) enum ib_atomic_cap atomic_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) enum ib_atomic_cap masked_atomic_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) int max_ee;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) int max_rdd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) int max_mw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) int max_raw_ipv6_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) int max_raw_ethy_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) int max_mcast_grp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) int max_mcast_qp_attach;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) int max_total_mcast_qp_attach;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) int max_ah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) int max_srq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) int max_srq_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) int max_srq_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) unsigned int max_fast_reg_page_list_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) unsigned int max_pi_fast_reg_page_list_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) u16 max_pkeys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) u8 local_ca_ack_delay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) int sig_prot_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) int sig_guard_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) struct ib_odp_caps odp_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) uint64_t timestamp_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) uint64_t hca_core_clock; /* in KHZ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct ib_rss_caps rss_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) u32 max_wq_type_rq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) u32 raw_packet_caps; /* Use ib_raw_packet_caps enum */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) struct ib_tm_caps tm_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) struct ib_cq_caps cq_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) u64 max_dm_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) /* Max entries for sgl for optimized performance per READ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) u32 max_sgl_rd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) enum ib_mtu {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) IB_MTU_256 = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) IB_MTU_512 = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) IB_MTU_1024 = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) IB_MTU_2048 = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) IB_MTU_4096 = 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) enum opa_mtu {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) OPA_MTU_8192 = 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) OPA_MTU_10240 = 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static inline int ib_mtu_enum_to_int(enum ib_mtu mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) switch (mtu) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) case IB_MTU_256: return 256;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) case IB_MTU_512: return 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) case IB_MTU_1024: return 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) case IB_MTU_2048: return 2048;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) case IB_MTU_4096: return 4096;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) default: return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) static inline enum ib_mtu ib_mtu_int_to_enum(int mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (mtu >= 4096)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) return IB_MTU_4096;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) else if (mtu >= 2048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return IB_MTU_2048;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) else if (mtu >= 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return IB_MTU_1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) else if (mtu >= 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return IB_MTU_512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) return IB_MTU_256;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) static inline int opa_mtu_enum_to_int(enum opa_mtu mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) switch (mtu) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) case OPA_MTU_8192:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) return 8192;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) case OPA_MTU_10240:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return 10240;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) return(ib_mtu_enum_to_int((enum ib_mtu)mtu));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) static inline enum opa_mtu opa_mtu_int_to_enum(int mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (mtu >= 10240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) return OPA_MTU_10240;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) else if (mtu >= 8192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return OPA_MTU_8192;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return ((enum opa_mtu)ib_mtu_int_to_enum(mtu));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) enum ib_port_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) IB_PORT_NOP = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) IB_PORT_DOWN = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) IB_PORT_INIT = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) IB_PORT_ARMED = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) IB_PORT_ACTIVE = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) IB_PORT_ACTIVE_DEFER = 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) enum ib_port_phys_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) IB_PORT_PHYS_STATE_SLEEP = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) IB_PORT_PHYS_STATE_POLLING = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) IB_PORT_PHYS_STATE_DISABLED = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) IB_PORT_PHYS_STATE_PORT_CONFIGURATION_TRAINING = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) IB_PORT_PHYS_STATE_LINK_UP = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) IB_PORT_PHYS_STATE_LINK_ERROR_RECOVERY = 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) IB_PORT_PHYS_STATE_PHY_TEST = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) enum ib_port_width {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) IB_WIDTH_1X = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) IB_WIDTH_2X = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) IB_WIDTH_4X = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) IB_WIDTH_8X = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) IB_WIDTH_12X = 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) static inline int ib_width_enum_to_int(enum ib_port_width width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) switch (width) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) case IB_WIDTH_1X: return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) case IB_WIDTH_2X: return 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) case IB_WIDTH_4X: return 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) case IB_WIDTH_8X: return 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) case IB_WIDTH_12X: return 12;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) default: return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) enum ib_port_speed {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) IB_SPEED_SDR = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) IB_SPEED_DDR = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) IB_SPEED_QDR = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) IB_SPEED_FDR10 = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) IB_SPEED_FDR = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) IB_SPEED_EDR = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) IB_SPEED_HDR = 64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) IB_SPEED_NDR = 128,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) * struct rdma_hw_stats
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) * @lock - Mutex to protect parallel write access to lifespan and values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) * of counters, which are 64bits and not guaranteeed to be written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) * atomicaly on 32bits systems.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) * @timestamp - Used by the core code to track when the last update was
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) * @lifespan - Used by the core code to determine how old the counters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) * should be before being updated again. Stored in jiffies, defaults
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) * to 10 milliseconds, drivers can override the default be specifying
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) * their own value during their allocation routine.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) * @name - Array of pointers to static names used for the counters in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) * directory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) * @num_counters - How many hardware counters there are. If name is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) * shorter than this number, a kernel oops will result. Driver authors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) * are encouraged to leave BUILD_BUG_ON(ARRAY_SIZE(@name) < num_counters)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) * in their code to prevent this.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) * @value - Array of u64 counters that are accessed by the sysfs code and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) * filled in by the drivers get_stats routine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) struct rdma_hw_stats {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) struct mutex lock; /* Protect lifespan and values[] */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) unsigned long timestamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) unsigned long lifespan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) const char * const *names;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) int num_counters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) u64 value[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) #define RDMA_HW_STATS_DEFAULT_LIFESPAN 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) * rdma_alloc_hw_stats_struct - Helper function to allocate dynamic struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) * for drivers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) * @names - Array of static const char *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) * @num_counters - How many elements in array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) * @lifespan - How many milliseconds between updates
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) const char * const *names, int num_counters,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) unsigned long lifespan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) struct rdma_hw_stats *stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) stats = kzalloc(sizeof(*stats) + num_counters * sizeof(u64),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) if (!stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) stats->names = names;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) stats->num_counters = num_counters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) stats->lifespan = msecs_to_jiffies(lifespan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) return stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) /* Define bits for the various functionality this port needs to be supported by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) * the core.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) /* Management 0x00000FFF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) #define RDMA_CORE_CAP_IB_MAD 0x00000001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) #define RDMA_CORE_CAP_IB_SMI 0x00000002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) #define RDMA_CORE_CAP_IB_CM 0x00000004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) #define RDMA_CORE_CAP_IW_CM 0x00000008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) #define RDMA_CORE_CAP_IB_SA 0x00000010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) #define RDMA_CORE_CAP_OPA_MAD 0x00000020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) /* Address format 0x000FF000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) #define RDMA_CORE_CAP_AF_IB 0x00001000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) #define RDMA_CORE_CAP_ETH_AH 0x00002000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) #define RDMA_CORE_CAP_OPA_AH 0x00004000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) #define RDMA_CORE_CAP_IB_GRH_REQUIRED 0x00008000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) /* Protocol 0xFFF00000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) #define RDMA_CORE_CAP_PROT_IB 0x00100000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) #define RDMA_CORE_CAP_PROT_ROCE 0x00200000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) #define RDMA_CORE_CAP_PROT_IWARP 0x00400000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) #define RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP 0x00800000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) #define RDMA_CORE_CAP_PROT_RAW_PACKET 0x01000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) #define RDMA_CORE_CAP_PROT_USNIC 0x02000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) #define RDMA_CORE_PORT_IB_GRH_REQUIRED (RDMA_CORE_CAP_IB_GRH_REQUIRED \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) | RDMA_CORE_CAP_PROT_ROCE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) #define RDMA_CORE_PORT_IBA_IB (RDMA_CORE_CAP_PROT_IB \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) | RDMA_CORE_CAP_IB_MAD \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) | RDMA_CORE_CAP_IB_SMI \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) | RDMA_CORE_CAP_IB_CM \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) | RDMA_CORE_CAP_IB_SA \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) | RDMA_CORE_CAP_AF_IB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) #define RDMA_CORE_PORT_IBA_ROCE (RDMA_CORE_CAP_PROT_ROCE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) | RDMA_CORE_CAP_IB_MAD \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) | RDMA_CORE_CAP_IB_CM \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) | RDMA_CORE_CAP_AF_IB \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) | RDMA_CORE_CAP_ETH_AH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) #define RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) (RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) | RDMA_CORE_CAP_IB_MAD \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) | RDMA_CORE_CAP_IB_CM \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) | RDMA_CORE_CAP_AF_IB \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) | RDMA_CORE_CAP_ETH_AH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) #define RDMA_CORE_PORT_IWARP (RDMA_CORE_CAP_PROT_IWARP \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) | RDMA_CORE_CAP_IW_CM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) #define RDMA_CORE_PORT_INTEL_OPA (RDMA_CORE_PORT_IBA_IB \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) | RDMA_CORE_CAP_OPA_MAD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) #define RDMA_CORE_PORT_RAW_PACKET (RDMA_CORE_CAP_PROT_RAW_PACKET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) #define RDMA_CORE_PORT_USNIC (RDMA_CORE_CAP_PROT_USNIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) struct ib_port_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) u64 subnet_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) enum ib_port_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) enum ib_mtu max_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) enum ib_mtu active_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) u32 phys_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) int gid_tbl_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) unsigned int ip_gids:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) /* This is the value from PortInfo CapabilityMask, defined by IBA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) u32 port_cap_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) u32 max_msg_sz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) u32 bad_pkey_cntr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) u32 qkey_viol_cntr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) u16 pkey_tbl_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) u32 sm_lid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) u32 lid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) u8 lmc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) u8 max_vl_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) u8 sm_sl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) u8 subnet_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) u8 init_type_reply;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) u8 active_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) u16 active_speed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) u8 phys_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) u16 port_cap_flags2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) enum ib_device_modify_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) IB_DEVICE_MODIFY_NODE_DESC = 1 << 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) #define IB_DEVICE_NODE_DESC_MAX 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) struct ib_device_modify {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) u64 sys_image_guid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) char node_desc[IB_DEVICE_NODE_DESC_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) enum ib_port_modify_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) IB_PORT_SHUTDOWN = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) IB_PORT_INIT_TYPE = (1<<2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) IB_PORT_RESET_QKEY_CNTR = (1<<3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) IB_PORT_OPA_MASK_CHG = (1<<4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) struct ib_port_modify {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) u32 set_port_cap_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) u32 clr_port_cap_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) u8 init_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) enum ib_event_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) IB_EVENT_CQ_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) IB_EVENT_QP_FATAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) IB_EVENT_QP_REQ_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) IB_EVENT_QP_ACCESS_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) IB_EVENT_COMM_EST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) IB_EVENT_SQ_DRAINED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) IB_EVENT_PATH_MIG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) IB_EVENT_PATH_MIG_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) IB_EVENT_DEVICE_FATAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) IB_EVENT_PORT_ACTIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) IB_EVENT_PORT_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) IB_EVENT_LID_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) IB_EVENT_PKEY_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) IB_EVENT_SM_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) IB_EVENT_SRQ_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) IB_EVENT_SRQ_LIMIT_REACHED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) IB_EVENT_QP_LAST_WQE_REACHED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) IB_EVENT_CLIENT_REREGISTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) IB_EVENT_GID_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) IB_EVENT_WQ_FATAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) const char *__attribute_const__ ib_event_msg(enum ib_event_type event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) struct ib_event {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) struct ib_cq *cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) struct ib_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) struct ib_srq *srq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) struct ib_wq *wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) u8 port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) } element;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) enum ib_event_type event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) struct ib_event_handler {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) void (*handler)(struct ib_event_handler *, struct ib_event *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) #define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) (_ptr)->device = _device; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) (_ptr)->handler = _handler; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) INIT_LIST_HEAD(&(_ptr)->list); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) struct ib_global_route {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) const struct ib_gid_attr *sgid_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) union ib_gid dgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) u32 flow_label;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) u8 sgid_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) u8 hop_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) u8 traffic_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) struct ib_grh {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) __be32 version_tclass_flow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) __be16 paylen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) u8 next_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) u8 hop_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) union ib_gid sgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) union ib_gid dgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) union rdma_network_hdr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) struct ib_grh ibgrh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) /* The IB spec states that if it's IPv4, the header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) * is located in the last 20 bytes of the header.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) u8 reserved[20];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) struct iphdr roce4grh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) #define IB_QPN_MASK 0xFFFFFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) IB_MULTICAST_QPN = 0xffffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) #define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) #define IB_MULTICAST_LID_BASE cpu_to_be16(0xC000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) enum ib_ah_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) IB_AH_GRH = 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) enum ib_rate {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) IB_RATE_PORT_CURRENT = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) IB_RATE_2_5_GBPS = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) IB_RATE_5_GBPS = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) IB_RATE_10_GBPS = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) IB_RATE_20_GBPS = 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) IB_RATE_30_GBPS = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) IB_RATE_40_GBPS = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) IB_RATE_60_GBPS = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) IB_RATE_80_GBPS = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) IB_RATE_120_GBPS = 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) IB_RATE_14_GBPS = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) IB_RATE_56_GBPS = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) IB_RATE_112_GBPS = 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) IB_RATE_168_GBPS = 14,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) IB_RATE_25_GBPS = 15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) IB_RATE_100_GBPS = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) IB_RATE_200_GBPS = 17,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) IB_RATE_300_GBPS = 18,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) IB_RATE_28_GBPS = 19,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) IB_RATE_50_GBPS = 20,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) IB_RATE_400_GBPS = 21,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) IB_RATE_600_GBPS = 22,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) * ib_rate_to_mult - Convert the IB rate enum to a multiple of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) * @rate: rate to convert.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) __attribute_const__ int ib_rate_to_mult(enum ib_rate rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) * ib_rate_to_mbps - Convert the IB rate enum to Mbps.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) * For example, IB_RATE_2_5_GBPS will be converted to 2500.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) * @rate: rate to convert.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) * enum ib_mr_type - memory region type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) * @IB_MR_TYPE_MEM_REG: memory region that is used for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) * normal registration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) * @IB_MR_TYPE_SG_GAPS: memory region that is capable to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) * register any arbitrary sg lists (without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) * the normal mr constraints - see
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) * ib_map_mr_sg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) * @IB_MR_TYPE_DM: memory region that is used for device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) * memory registration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) * @IB_MR_TYPE_USER: memory region that is used for the user-space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) * application
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) * @IB_MR_TYPE_DMA: memory region that is used for DMA operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) * without address translations (VA=PA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) * @IB_MR_TYPE_INTEGRITY: memory region that is used for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) * data integrity operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) enum ib_mr_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) IB_MR_TYPE_MEM_REG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) IB_MR_TYPE_SG_GAPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) IB_MR_TYPE_DM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) IB_MR_TYPE_USER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) IB_MR_TYPE_DMA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) IB_MR_TYPE_INTEGRITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) enum ib_mr_status_check {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) IB_MR_CHECK_SIG_STATUS = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) * struct ib_mr_status - Memory region status container
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) * @fail_status: Bitmask of MR checks status. For each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) * failed check a corresponding status bit is set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) * @sig_err: Additional info for IB_MR_CEHCK_SIG_STATUS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) * failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) struct ib_mr_status {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) u32 fail_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) struct ib_sig_err sig_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) * enum.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) * @mult: multiple to convert.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) __attribute_const__ enum ib_rate mult_to_ib_rate(int mult);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) struct rdma_ah_init_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) struct rdma_ah_attr *ah_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) struct net_device *xmit_slave;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) enum rdma_ah_attr_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) RDMA_AH_ATTR_TYPE_UNDEFINED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) RDMA_AH_ATTR_TYPE_IB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) RDMA_AH_ATTR_TYPE_ROCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) RDMA_AH_ATTR_TYPE_OPA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) struct ib_ah_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) u16 dlid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) u8 src_path_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) struct roce_ah_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) u8 dmac[ETH_ALEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) struct opa_ah_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) u32 dlid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) u8 src_path_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) bool make_grd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) struct rdma_ah_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) struct ib_global_route grh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) u8 sl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) u8 static_rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) u8 port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) u8 ah_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) enum rdma_ah_attr_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) struct ib_ah_attr ib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) struct roce_ah_attr roce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) struct opa_ah_attr opa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) enum ib_wc_status {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) IB_WC_SUCCESS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) IB_WC_LOC_LEN_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) IB_WC_LOC_QP_OP_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) IB_WC_LOC_EEC_OP_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) IB_WC_LOC_PROT_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) IB_WC_WR_FLUSH_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) IB_WC_MW_BIND_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) IB_WC_BAD_RESP_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) IB_WC_LOC_ACCESS_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) IB_WC_REM_INV_REQ_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) IB_WC_REM_ACCESS_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) IB_WC_REM_OP_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) IB_WC_RETRY_EXC_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) IB_WC_RNR_RETRY_EXC_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) IB_WC_LOC_RDD_VIOL_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) IB_WC_REM_INV_RD_REQ_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) IB_WC_REM_ABORT_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) IB_WC_INV_EECN_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) IB_WC_INV_EEC_STATE_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) IB_WC_FATAL_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) IB_WC_RESP_TIMEOUT_ERR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) IB_WC_GENERAL_ERR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) const char *__attribute_const__ ib_wc_status_msg(enum ib_wc_status status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) enum ib_wc_opcode {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) IB_WC_SEND = IB_UVERBS_WC_SEND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) IB_WC_RDMA_WRITE = IB_UVERBS_WC_RDMA_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) IB_WC_RDMA_READ = IB_UVERBS_WC_RDMA_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) IB_WC_COMP_SWAP = IB_UVERBS_WC_COMP_SWAP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) IB_WC_FETCH_ADD = IB_UVERBS_WC_FETCH_ADD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) IB_WC_BIND_MW = IB_UVERBS_WC_BIND_MW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) IB_WC_LOCAL_INV = IB_UVERBS_WC_LOCAL_INV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) IB_WC_LSO = IB_UVERBS_WC_TSO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) IB_WC_REG_MR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) IB_WC_MASKED_COMP_SWAP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) IB_WC_MASKED_FETCH_ADD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) * Set value of IB_WC_RECV so consumers can test if a completion is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) * receive by testing (opcode & IB_WC_RECV).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) IB_WC_RECV = 1 << 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) IB_WC_RECV_RDMA_WITH_IMM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) enum ib_wc_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) IB_WC_GRH = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) IB_WC_WITH_IMM = (1<<1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) IB_WC_WITH_INVALIDATE = (1<<2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) IB_WC_IP_CSUM_OK = (1<<3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) IB_WC_WITH_SMAC = (1<<4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) IB_WC_WITH_VLAN = (1<<5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) IB_WC_WITH_NETWORK_HDR_TYPE = (1<<6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) struct ib_wc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) u64 wr_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) struct ib_cqe *wr_cqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) enum ib_wc_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) enum ib_wc_opcode opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) u32 vendor_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) u32 byte_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) struct ib_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) __be32 imm_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) u32 invalidate_rkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) } ex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) u32 src_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) u32 slid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) int wc_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) u16 pkey_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) u8 sl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) u8 dlid_path_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) u8 port_num; /* valid only for DR SMPs on switches */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) u8 smac[ETH_ALEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) u16 vlan_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) u8 network_hdr_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) enum ib_cq_notify_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) IB_CQ_SOLICITED = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) IB_CQ_NEXT_COMP = 1 << 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) IB_CQ_REPORT_MISSED_EVENTS = 1 << 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) enum ib_srq_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) IB_SRQT_BASIC = IB_UVERBS_SRQT_BASIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) IB_SRQT_XRC = IB_UVERBS_SRQT_XRC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) IB_SRQT_TM = IB_UVERBS_SRQT_TM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) static inline bool ib_srq_has_cq(enum ib_srq_type srq_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) return srq_type == IB_SRQT_XRC ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) srq_type == IB_SRQT_TM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) enum ib_srq_attr_mask {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) IB_SRQ_MAX_WR = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) IB_SRQ_LIMIT = 1 << 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) struct ib_srq_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) u32 max_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) u32 max_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) u32 srq_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) struct ib_srq_init_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) void *srq_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) struct ib_srq_attr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) enum ib_srq_type srq_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) struct ib_cq *cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) struct ib_xrcd *xrcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) } xrc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) u32 max_num_tags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) } tag_matching;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) } ext;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) struct ib_qp_cap {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) u32 max_send_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) u32 max_recv_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) u32 max_send_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) u32 max_recv_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) u32 max_inline_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) * Maximum number of rdma_rw_ctx structures in flight at a time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) * ib_create_qp() will calculate the right amount of neededed WRs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) * and MRs based on this.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) u32 max_rdma_ctxs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) enum ib_sig_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) IB_SIGNAL_ALL_WR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) IB_SIGNAL_REQ_WR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) enum ib_qp_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) * here (and in that order) since the MAD layer uses them as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) * indices into a 2-entry table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) IB_QPT_SMI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) IB_QPT_GSI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) IB_QPT_RC = IB_UVERBS_QPT_RC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) IB_QPT_UC = IB_UVERBS_QPT_UC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) IB_QPT_UD = IB_UVERBS_QPT_UD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) IB_QPT_RAW_IPV6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) IB_QPT_RAW_ETHERTYPE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) IB_QPT_RAW_PACKET = IB_UVERBS_QPT_RAW_PACKET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) IB_QPT_XRC_INI = IB_UVERBS_QPT_XRC_INI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) IB_QPT_XRC_TGT = IB_UVERBS_QPT_XRC_TGT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) IB_QPT_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) IB_QPT_DRIVER = IB_UVERBS_QPT_DRIVER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) /* Reserve a range for qp types internal to the low level driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) * These qp types will not be visible at the IB core layer, so the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) * IB_QPT_MAX usages should not be affected in the core layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) IB_QPT_RESERVED1 = 0x1000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) IB_QPT_RESERVED2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) IB_QPT_RESERVED3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) IB_QPT_RESERVED4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) IB_QPT_RESERVED5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) IB_QPT_RESERVED6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) IB_QPT_RESERVED7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) IB_QPT_RESERVED8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) IB_QPT_RESERVED9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) IB_QPT_RESERVED10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) enum ib_qp_create_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) IB_UVERBS_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) IB_QP_CREATE_CROSS_CHANNEL = 1 << 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) IB_QP_CREATE_MANAGED_SEND = 1 << 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) IB_QP_CREATE_MANAGED_RECV = 1 << 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) IB_QP_CREATE_NETIF_QP = 1 << 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) IB_QP_CREATE_INTEGRITY_EN = 1 << 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) IB_QP_CREATE_NETDEV_USE = 1 << 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) IB_QP_CREATE_SCATTER_FCS =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) IB_UVERBS_QP_CREATE_SCATTER_FCS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) IB_QP_CREATE_CVLAN_STRIPPING =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) IB_UVERBS_QP_CREATE_CVLAN_STRIPPING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) IB_QP_CREATE_SOURCE_QPN = 1 << 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) IB_QP_CREATE_PCI_WRITE_END_PADDING =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) IB_UVERBS_QP_CREATE_PCI_WRITE_END_PADDING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) /* reserve bits 26-31 for low level drivers' internal use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) IB_QP_CREATE_RESERVED_START = 1 << 26,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) IB_QP_CREATE_RESERVED_END = 1 << 31,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) * Note: users may not call ib_close_qp or ib_destroy_qp from the event_handler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) * callback to destroy the passed in QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) struct ib_qp_init_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) /* Consumer's event_handler callback must not block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) void *qp_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) struct ib_cq *send_cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) struct ib_cq *recv_cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) struct ib_srq *srq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) struct ib_xrcd *xrcd; /* XRC TGT QPs only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) struct ib_qp_cap cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) enum ib_sig_type sq_sig_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) enum ib_qp_type qp_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) u32 create_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) * Only needed for special QP types, or when using the RW API.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) u8 port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) struct ib_rwq_ind_table *rwq_ind_tbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) u32 source_qpn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) struct ib_qp_open_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) void *qp_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) u32 qp_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) enum ib_qp_type qp_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) enum ib_rnr_timeout {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) IB_RNR_TIMER_655_36 = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) IB_RNR_TIMER_000_01 = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) IB_RNR_TIMER_000_02 = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) IB_RNR_TIMER_000_03 = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) IB_RNR_TIMER_000_04 = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) IB_RNR_TIMER_000_06 = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) IB_RNR_TIMER_000_08 = 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) IB_RNR_TIMER_000_12 = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) IB_RNR_TIMER_000_16 = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) IB_RNR_TIMER_000_24 = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) IB_RNR_TIMER_000_32 = 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) IB_RNR_TIMER_000_48 = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) IB_RNR_TIMER_000_64 = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) IB_RNR_TIMER_000_96 = 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) IB_RNR_TIMER_001_28 = 14,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) IB_RNR_TIMER_001_92 = 15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) IB_RNR_TIMER_002_56 = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) IB_RNR_TIMER_003_84 = 17,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) IB_RNR_TIMER_005_12 = 18,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) IB_RNR_TIMER_007_68 = 19,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) IB_RNR_TIMER_010_24 = 20,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) IB_RNR_TIMER_015_36 = 21,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) IB_RNR_TIMER_020_48 = 22,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) IB_RNR_TIMER_030_72 = 23,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) IB_RNR_TIMER_040_96 = 24,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) IB_RNR_TIMER_061_44 = 25,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) IB_RNR_TIMER_081_92 = 26,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) IB_RNR_TIMER_122_88 = 27,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) IB_RNR_TIMER_163_84 = 28,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) IB_RNR_TIMER_245_76 = 29,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) IB_RNR_TIMER_327_68 = 30,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) IB_RNR_TIMER_491_52 = 31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) enum ib_qp_attr_mask {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) IB_QP_STATE = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) IB_QP_CUR_STATE = (1<<1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) IB_QP_ACCESS_FLAGS = (1<<3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) IB_QP_PKEY_INDEX = (1<<4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) IB_QP_PORT = (1<<5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) IB_QP_QKEY = (1<<6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) IB_QP_AV = (1<<7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) IB_QP_PATH_MTU = (1<<8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) IB_QP_TIMEOUT = (1<<9),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) IB_QP_RETRY_CNT = (1<<10),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) IB_QP_RNR_RETRY = (1<<11),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) IB_QP_RQ_PSN = (1<<12),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) IB_QP_MAX_QP_RD_ATOMIC = (1<<13),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) IB_QP_ALT_PATH = (1<<14),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) IB_QP_MIN_RNR_TIMER = (1<<15),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) IB_QP_SQ_PSN = (1<<16),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) IB_QP_MAX_DEST_RD_ATOMIC = (1<<17),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) IB_QP_PATH_MIG_STATE = (1<<18),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) IB_QP_CAP = (1<<19),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) IB_QP_DEST_QPN = (1<<20),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) IB_QP_RESERVED1 = (1<<21),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) IB_QP_RESERVED2 = (1<<22),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) IB_QP_RESERVED3 = (1<<23),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) IB_QP_RESERVED4 = (1<<24),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) IB_QP_RATE_LIMIT = (1<<25),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) enum ib_qp_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) IB_QPS_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) IB_QPS_INIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) IB_QPS_RTR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) IB_QPS_RTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) IB_QPS_SQD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) IB_QPS_SQE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) IB_QPS_ERR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) enum ib_mig_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) IB_MIG_MIGRATED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) IB_MIG_REARM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) IB_MIG_ARMED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) enum ib_mw_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) IB_MW_TYPE_1 = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) IB_MW_TYPE_2 = 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) struct ib_qp_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) enum ib_qp_state qp_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) enum ib_qp_state cur_qp_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) enum ib_mtu path_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) enum ib_mig_state path_mig_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) u32 qkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) u32 rq_psn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) u32 sq_psn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) u32 dest_qp_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) int qp_access_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) struct ib_qp_cap cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) struct rdma_ah_attr ah_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) struct rdma_ah_attr alt_ah_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) u16 pkey_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) u16 alt_pkey_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) u8 en_sqd_async_notify;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) u8 sq_draining;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) u8 max_rd_atomic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) u8 max_dest_rd_atomic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) u8 min_rnr_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) u8 port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) u8 timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) u8 retry_cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) u8 rnr_retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) u8 alt_port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) u8 alt_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) u32 rate_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) struct net_device *xmit_slave;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) enum ib_wr_opcode {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) /* These are shared with userspace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) IB_WR_RDMA_WRITE = IB_UVERBS_WR_RDMA_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) IB_WR_RDMA_WRITE_WITH_IMM = IB_UVERBS_WR_RDMA_WRITE_WITH_IMM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) IB_WR_SEND = IB_UVERBS_WR_SEND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) IB_WR_SEND_WITH_IMM = IB_UVERBS_WR_SEND_WITH_IMM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) IB_WR_RDMA_READ = IB_UVERBS_WR_RDMA_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) IB_WR_ATOMIC_CMP_AND_SWP = IB_UVERBS_WR_ATOMIC_CMP_AND_SWP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) IB_WR_ATOMIC_FETCH_AND_ADD = IB_UVERBS_WR_ATOMIC_FETCH_AND_ADD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) IB_WR_BIND_MW = IB_UVERBS_WR_BIND_MW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) IB_WR_LSO = IB_UVERBS_WR_TSO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) IB_WR_SEND_WITH_INV = IB_UVERBS_WR_SEND_WITH_INV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) IB_WR_RDMA_READ_WITH_INV = IB_UVERBS_WR_RDMA_READ_WITH_INV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) IB_WR_LOCAL_INV = IB_UVERBS_WR_LOCAL_INV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) IB_WR_MASKED_ATOMIC_CMP_AND_SWP =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) IB_UVERBS_WR_MASKED_ATOMIC_CMP_AND_SWP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) IB_WR_MASKED_ATOMIC_FETCH_AND_ADD =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) IB_UVERBS_WR_MASKED_ATOMIC_FETCH_AND_ADD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) /* These are kernel only and can not be issued by userspace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) IB_WR_REG_MR = 0x20,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) IB_WR_REG_MR_INTEGRITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) /* reserve values for low level drivers' internal use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) * These values will not be used at all in the ib core layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) IB_WR_RESERVED1 = 0xf0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) IB_WR_RESERVED2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) IB_WR_RESERVED3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) IB_WR_RESERVED4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) IB_WR_RESERVED5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) IB_WR_RESERVED6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) IB_WR_RESERVED7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) IB_WR_RESERVED8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) IB_WR_RESERVED9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) IB_WR_RESERVED10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) enum ib_send_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) IB_SEND_FENCE = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) IB_SEND_SIGNALED = (1<<1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) IB_SEND_SOLICITED = (1<<2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) IB_SEND_INLINE = (1<<3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) IB_SEND_IP_CSUM = (1<<4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) /* reserve bits 26-31 for low level drivers' internal use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) IB_SEND_RESERVED_START = (1 << 26),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) IB_SEND_RESERVED_END = (1 << 31),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) struct ib_sge {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) u64 addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) u32 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) u32 lkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) struct ib_cqe {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) void (*done)(struct ib_cq *cq, struct ib_wc *wc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) struct ib_send_wr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) struct ib_send_wr *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) u64 wr_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) struct ib_cqe *wr_cqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) struct ib_sge *sg_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) int num_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) enum ib_wr_opcode opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) int send_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) __be32 imm_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) u32 invalidate_rkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) } ex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) struct ib_rdma_wr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) struct ib_send_wr wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) u64 remote_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) u32 rkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) static inline const struct ib_rdma_wr *rdma_wr(const struct ib_send_wr *wr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) return container_of(wr, struct ib_rdma_wr, wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) struct ib_atomic_wr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) struct ib_send_wr wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) u64 remote_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) u64 compare_add;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) u64 swap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) u64 compare_add_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) u64 swap_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) u32 rkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) static inline const struct ib_atomic_wr *atomic_wr(const struct ib_send_wr *wr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) return container_of(wr, struct ib_atomic_wr, wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) struct ib_ud_wr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) struct ib_send_wr wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) struct ib_ah *ah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) void *header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) int hlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) int mss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) u32 remote_qpn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) u32 remote_qkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) u16 pkey_index; /* valid for GSI only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) u8 port_num; /* valid for DR SMPs on switch only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) static inline const struct ib_ud_wr *ud_wr(const struct ib_send_wr *wr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) return container_of(wr, struct ib_ud_wr, wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) struct ib_reg_wr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) struct ib_send_wr wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) struct ib_mr *mr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) u32 key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) int access;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) static inline const struct ib_reg_wr *reg_wr(const struct ib_send_wr *wr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) return container_of(wr, struct ib_reg_wr, wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) struct ib_recv_wr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) struct ib_recv_wr *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) u64 wr_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) struct ib_cqe *wr_cqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) struct ib_sge *sg_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) int num_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) enum ib_access_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) IB_ACCESS_LOCAL_WRITE = IB_UVERBS_ACCESS_LOCAL_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) IB_ACCESS_REMOTE_WRITE = IB_UVERBS_ACCESS_REMOTE_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) IB_ACCESS_REMOTE_READ = IB_UVERBS_ACCESS_REMOTE_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) IB_ACCESS_REMOTE_ATOMIC = IB_UVERBS_ACCESS_REMOTE_ATOMIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) IB_ACCESS_MW_BIND = IB_UVERBS_ACCESS_MW_BIND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) IB_ZERO_BASED = IB_UVERBS_ACCESS_ZERO_BASED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) IB_ACCESS_ON_DEMAND = IB_UVERBS_ACCESS_ON_DEMAND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) IB_ACCESS_HUGETLB = IB_UVERBS_ACCESS_HUGETLB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) IB_ACCESS_RELAXED_ORDERING = IB_UVERBS_ACCESS_RELAXED_ORDERING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) IB_ACCESS_OPTIONAL = IB_UVERBS_ACCESS_OPTIONAL_RANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) IB_ACCESS_SUPPORTED =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) ((IB_ACCESS_HUGETLB << 1) - 1) | IB_ACCESS_OPTIONAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) * XXX: these are apparently used for ->rereg_user_mr, no idea why they
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) * are hidden here instead of a uapi header!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) enum ib_mr_rereg_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) IB_MR_REREG_TRANS = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) IB_MR_REREG_PD = (1<<1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) IB_MR_REREG_ACCESS = (1<<2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) struct ib_umem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) enum rdma_remove_reason {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) * Userspace requested uobject deletion or initial try
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) * to remove uobject via cleanup. Call could fail
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) RDMA_REMOVE_DESTROY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) /* Context deletion. This call should delete the actual object itself */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) RDMA_REMOVE_CLOSE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) /* Driver is being hot-unplugged. This call should delete the actual object itself */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) RDMA_REMOVE_DRIVER_REMOVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) /* uobj is being cleaned-up before being committed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) RDMA_REMOVE_ABORT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) struct ib_rdmacg_object {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) #ifdef CONFIG_CGROUP_RDMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) struct rdma_cgroup *cg; /* owner rdma cgroup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) struct ib_ucontext {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) struct ib_uverbs_file *ufile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) bool cleanup_retryable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) struct ib_rdmacg_object cg_obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) * Implementation details of the RDMA core, don't use in drivers:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) struct rdma_restrack_entry res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) struct xarray mmap_xa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) struct ib_uobject {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) u64 user_handle; /* handle given to us by userspace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) /* ufile & ucontext owning this object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) struct ib_uverbs_file *ufile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) /* FIXME, save memory: ufile->context == context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) struct ib_ucontext *context; /* associated user context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) void *object; /* containing object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) struct list_head list; /* link to context's list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) struct ib_rdmacg_object cg_obj; /* rdmacg object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) int id; /* index into kernel idr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) struct kref ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) atomic_t usecnt; /* protects exclusive access */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) struct rcu_head rcu; /* kfree_rcu() overhead */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) const struct uverbs_api_object *uapi_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) struct ib_udata {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) const void __user *inbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) void __user *outbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) size_t inlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) size_t outlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) struct ib_pd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) u32 local_dma_lkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) atomic_t usecnt; /* count all resources */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) u32 unsafe_global_rkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) * Implementation details of the RDMA core, don't use in drivers:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) struct ib_mr *__internal_mr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) struct rdma_restrack_entry res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) struct ib_xrcd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) atomic_t usecnt; /* count all exposed resources */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) struct rw_semaphore tgt_qps_rwsem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) struct xarray tgt_qps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) struct ib_ah {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) struct ib_pd *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) const struct ib_gid_attr *sgid_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) enum rdma_ah_attr_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) enum ib_poll_context {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) IB_POLL_SOFTIRQ, /* poll from softirq context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) IB_POLL_WORKQUEUE, /* poll from workqueue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) IB_POLL_UNBOUND_WORKQUEUE, /* poll from unbound workqueue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) IB_POLL_LAST_POOL_TYPE = IB_POLL_UNBOUND_WORKQUEUE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) IB_POLL_DIRECT, /* caller context, no hw completions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) struct ib_cq {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) struct ib_ucq_object *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) ib_comp_handler comp_handler;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) void *cq_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) int cqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) unsigned int cqe_used;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) atomic_t usecnt; /* count number of work queues */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) enum ib_poll_context poll_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) struct ib_wc *wc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) struct list_head pool_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) struct irq_poll iop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) struct workqueue_struct *comp_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) struct dim *dim;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) /* updated only by trace points */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) ktime_t timestamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) u8 interrupt:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) u8 shared:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) unsigned int comp_vector;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) * Implementation details of the RDMA core, don't use in drivers:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) struct rdma_restrack_entry res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) struct ib_srq {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) struct ib_pd *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) struct ib_usrq_object *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) void *srq_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) enum ib_srq_type srq_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) atomic_t usecnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) struct ib_cq *cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) struct ib_xrcd *xrcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) u32 srq_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) } xrc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) } ext;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) enum ib_raw_packet_caps {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) /* Strip cvlan from incoming packet and report it in the matching work
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) * completion is supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) IB_RAW_PACKET_CAP_CVLAN_STRIPPING = (1 << 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) /* Scatter FCS field of an incoming packet to host memory is supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) IB_RAW_PACKET_CAP_SCATTER_FCS = (1 << 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) /* Checksum offloads are supported (for both send and receive). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) IB_RAW_PACKET_CAP_IP_CSUM = (1 << 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) /* When a packet is received for an RQ with no receive WQEs, the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) * packet processing is delayed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) IB_RAW_PACKET_CAP_DELAY_DROP = (1 << 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) enum ib_wq_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) IB_WQT_RQ = IB_UVERBS_WQT_RQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) enum ib_wq_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) IB_WQS_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) IB_WQS_RDY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) IB_WQS_ERR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) struct ib_wq {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) struct ib_uwq_object *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) void *wq_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) struct ib_pd *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) struct ib_cq *cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) u32 wq_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) enum ib_wq_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) enum ib_wq_type wq_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648) atomic_t usecnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) enum ib_wq_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) IB_WQ_FLAGS_CVLAN_STRIPPING = IB_UVERBS_WQ_FLAGS_CVLAN_STRIPPING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) IB_WQ_FLAGS_SCATTER_FCS = IB_UVERBS_WQ_FLAGS_SCATTER_FCS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) IB_WQ_FLAGS_DELAY_DROP = IB_UVERBS_WQ_FLAGS_DELAY_DROP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) IB_WQ_FLAGS_PCI_WRITE_END_PADDING =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) IB_UVERBS_WQ_FLAGS_PCI_WRITE_END_PADDING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) struct ib_wq_init_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) void *wq_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) enum ib_wq_type wq_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) u32 max_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) u32 max_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) struct ib_cq *cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) u32 create_flags; /* Use enum ib_wq_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) enum ib_wq_attr_mask {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) IB_WQ_STATE = 1 << 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) IB_WQ_CUR_STATE = 1 << 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) IB_WQ_FLAGS = 1 << 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) struct ib_wq_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) enum ib_wq_state wq_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) enum ib_wq_state curr_wq_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) u32 flags; /* Use enum ib_wq_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) u32 flags_mask; /* Use enum ib_wq_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682) struct ib_rwq_ind_table {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) atomic_t usecnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) u32 ind_tbl_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) u32 log_ind_tbl_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) struct ib_wq **ind_tbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) struct ib_rwq_ind_table_init_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) u32 log_ind_tbl_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) /* Each entry is a pointer to Receive Work Queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) struct ib_wq **ind_tbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) enum port_pkey_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) IB_PORT_PKEY_NOT_VALID = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) IB_PORT_PKEY_VALID = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) IB_PORT_PKEY_LISTED = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) struct ib_qp_security;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) struct ib_port_pkey {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) enum port_pkey_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) u16 pkey_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) u8 port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) struct list_head qp_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) struct list_head to_error_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) struct ib_qp_security *sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) struct ib_ports_pkeys {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) struct ib_port_pkey main;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) struct ib_port_pkey alt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) struct ib_qp_security {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) struct ib_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) struct ib_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) /* Hold this mutex when changing port and pkey settings. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) struct mutex mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) struct ib_ports_pkeys *ports_pkeys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) /* A list of all open shared QP handles. Required to enforce security
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) * properly for all users of a shared QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) struct list_head shared_qp_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) void *security;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) bool destroying;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) atomic_t error_list_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) struct completion error_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) int error_comps_pending;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) * @max_write_sge: Maximum SGE elements per RDMA WRITE request.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) * @max_read_sge: Maximum SGE elements per RDMA READ request.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) struct ib_qp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) struct ib_pd *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) struct ib_cq *send_cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) struct ib_cq *recv_cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) spinlock_t mr_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) int mrs_used;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) struct list_head rdma_mrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) struct list_head sig_mrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) struct ib_srq *srq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) struct ib_xrcd *xrcd; /* XRC TGT QPs only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) struct list_head xrcd_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) /* count times opened, mcast attaches, flow attaches */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) atomic_t usecnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) struct list_head open_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) struct ib_qp *real_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) struct ib_uqp_object *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) void (*event_handler)(struct ib_event *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) void *qp_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) /* sgid_attrs associated with the AV's */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) const struct ib_gid_attr *av_sgid_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) const struct ib_gid_attr *alt_path_sgid_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) u32 qp_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) u32 max_write_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) u32 max_read_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) enum ib_qp_type qp_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) struct ib_rwq_ind_table *rwq_ind_tbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) struct ib_qp_security *qp_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) u8 port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) bool integrity_en;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) * Implementation details of the RDMA core, don't use in drivers:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) struct rdma_restrack_entry res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) /* The counter the qp is bind to */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) struct rdma_counter *counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) struct ib_dm {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) u32 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) atomic_t usecnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) struct ib_mr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) struct ib_pd *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) u32 lkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) u32 rkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) u64 iova;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) u64 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) unsigned int page_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) enum ib_mr_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) bool need_inval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) struct ib_uobject *uobject; /* user */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) struct list_head qp_entry; /* FR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) struct ib_dm *dm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) struct ib_sig_attrs *sig_attrs; /* only for IB_MR_TYPE_INTEGRITY MRs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) * Implementation details of the RDMA core, don't use in drivers:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) struct rdma_restrack_entry res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) struct ib_mw {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) struct ib_pd *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816) u32 rkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) enum ib_mw_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) /* Supported steering options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) enum ib_flow_attr_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) /* steering according to rule specifications */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) IB_FLOW_ATTR_NORMAL = 0x0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) /* default unicast and multicast rule -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) * receive all Eth traffic which isn't steered to any QP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) IB_FLOW_ATTR_ALL_DEFAULT = 0x1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) /* default multicast rule -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) * receive all Eth multicast traffic which isn't steered to any QP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) IB_FLOW_ATTR_MC_DEFAULT = 0x2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) /* sniffer rule - receive all port traffic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) IB_FLOW_ATTR_SNIFFER = 0x3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) /* Supported steering header types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) enum ib_flow_spec_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) /* L2 headers*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) IB_FLOW_SPEC_ETH = 0x20,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) IB_FLOW_SPEC_IB = 0x22,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) /* L3 header*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) IB_FLOW_SPEC_IPV4 = 0x30,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) IB_FLOW_SPEC_IPV6 = 0x31,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) IB_FLOW_SPEC_ESP = 0x34,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) /* L4 headers*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) IB_FLOW_SPEC_TCP = 0x40,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) IB_FLOW_SPEC_UDP = 0x41,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) IB_FLOW_SPEC_VXLAN_TUNNEL = 0x50,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) IB_FLOW_SPEC_GRE = 0x51,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850) IB_FLOW_SPEC_MPLS = 0x60,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) IB_FLOW_SPEC_INNER = 0x100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) /* Actions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) IB_FLOW_SPEC_ACTION_TAG = 0x1000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) IB_FLOW_SPEC_ACTION_DROP = 0x1001,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) IB_FLOW_SPEC_ACTION_HANDLE = 0x1002,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) IB_FLOW_SPEC_ACTION_COUNT = 0x1003,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) #define IB_FLOW_SPEC_LAYER_MASK 0xF0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) #define IB_FLOW_SPEC_SUPPORT_LAYERS 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) enum ib_flow_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) IB_FLOW_ATTR_FLAGS_DONT_TRAP = 1UL << 1, /* Continue match, no steal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) IB_FLOW_ATTR_FLAGS_EGRESS = 1UL << 2, /* Egress flow */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) IB_FLOW_ATTR_FLAGS_RESERVED = 1UL << 3 /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) struct ib_flow_eth_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) u8 dst_mac[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) u8 src_mac[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) __be16 ether_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) __be16 vlan_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) struct ib_flow_spec_eth {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) struct ib_flow_eth_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) struct ib_flow_eth_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) struct ib_flow_ib_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) __be16 dlid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) __u8 sl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) struct ib_flow_spec_ib {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) struct ib_flow_ib_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) struct ib_flow_ib_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) /* IPv4 header flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) enum ib_ipv4_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) IB_IPV4_DONT_FRAG = 0x2, /* Don't enable packet fragmentation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) IB_IPV4_MORE_FRAG = 0X4 /* For All fragmented packets except the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) last have this flag set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) struct ib_flow_ipv4_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) __be32 src_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) __be32 dst_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) u8 proto;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) u8 tos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) u8 ttl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) u8 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) struct ib_flow_spec_ipv4 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) struct ib_flow_ipv4_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) struct ib_flow_ipv4_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) struct ib_flow_ipv6_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) u8 src_ip[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) u8 dst_ip[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) __be32 flow_label;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) u8 next_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) u8 traffic_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) u8 hop_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) struct ib_flow_spec_ipv6 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) struct ib_flow_ipv6_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) struct ib_flow_ipv6_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) struct ib_flow_tcp_udp_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) __be16 dst_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) __be16 src_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) struct ib_flow_spec_tcp_udp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) struct ib_flow_tcp_udp_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) struct ib_flow_tcp_udp_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) struct ib_flow_tunnel_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) __be32 tunnel_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) /* ib_flow_spec_tunnel describes the Vxlan tunnel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) * the tunnel_id from val has the vni value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) struct ib_flow_spec_tunnel {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) struct ib_flow_tunnel_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) struct ib_flow_tunnel_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) struct ib_flow_esp_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) __be32 spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) __be32 seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) struct ib_flow_spec_esp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) struct ib_flow_esp_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) struct ib_flow_esp_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) struct ib_flow_gre_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) __be16 c_ks_res0_ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) __be16 protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) __be32 key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) struct ib_flow_spec_gre {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) struct ib_flow_gre_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) struct ib_flow_gre_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) struct ib_flow_mpls_filter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) __be32 tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000) /* Must be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) u8 real_sz[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) struct ib_flow_spec_mpls {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007) struct ib_flow_mpls_filter val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008) struct ib_flow_mpls_filter mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) struct ib_flow_spec_action_tag {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) enum ib_flow_spec_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) u32 tag_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) struct ib_flow_spec_action_drop {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) enum ib_flow_spec_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) struct ib_flow_spec_action_handle {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) enum ib_flow_spec_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) struct ib_flow_action *act;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028) enum ib_counters_description {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) IB_COUNTER_PACKETS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030) IB_COUNTER_BYTES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) struct ib_flow_spec_action_count {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) enum ib_flow_spec_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) struct ib_counters *counters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) union ib_flow_spec {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) struct ib_flow_spec_eth eth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045) struct ib_flow_spec_ib ib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046) struct ib_flow_spec_ipv4 ipv4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) struct ib_flow_spec_tcp_udp tcp_udp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048) struct ib_flow_spec_ipv6 ipv6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049) struct ib_flow_spec_tunnel tunnel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) struct ib_flow_spec_esp esp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) struct ib_flow_spec_gre gre;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052) struct ib_flow_spec_mpls mpls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) struct ib_flow_spec_action_tag flow_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054) struct ib_flow_spec_action_drop drop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055) struct ib_flow_spec_action_handle action;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) struct ib_flow_spec_action_count flow_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) struct ib_flow_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060) enum ib_flow_attr_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061) u16 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) u16 priority;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) u8 num_of_specs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065) u8 port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) union ib_flow_spec flows[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069) struct ib_flow {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070) struct ib_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075) enum ib_flow_action_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076) IB_FLOW_ACTION_UNSPECIFIED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) IB_FLOW_ACTION_ESP = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080) struct ib_flow_action_attrs_esp_keymats {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) enum ib_uverbs_flow_action_esp_keymat protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083) struct ib_uverbs_flow_action_esp_keymat_aes_gcm aes_gcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084) } keymat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087) struct ib_flow_action_attrs_esp_replays {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088) enum ib_uverbs_flow_action_esp_replay protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) struct ib_uverbs_flow_action_esp_replay_bmp bmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) } replay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094) enum ib_flow_action_attrs_esp_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) /* All user-space flags at the top: Use enum ib_uverbs_flow_action_esp_flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) * This is done in order to share the same flags between user-space and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097) * kernel and spare an unnecessary translation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100) /* Kernel flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED = 1ULL << 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102) IB_FLOW_ACTION_ESP_FLAGS_MOD_ESP_ATTRS = 1ULL << 33,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105) struct ib_flow_spec_list {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) struct ib_flow_spec_list *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107) union ib_flow_spec spec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110) struct ib_flow_action_attrs_esp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111) struct ib_flow_action_attrs_esp_keymats *keymat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112) struct ib_flow_action_attrs_esp_replays *replay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113) struct ib_flow_spec_list *encap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) /* Used only if IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED is enabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) * Value of 0 is a valid value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117) u32 esn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118) u32 spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) u32 seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120) u32 tfc_pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121) /* Use enum ib_flow_action_attrs_esp_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122) u64 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123) u64 hard_limit_pkts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126) struct ib_flow_action {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129) enum ib_flow_action_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) atomic_t usecnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133) struct ib_mad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134) struct ib_grh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136) enum ib_process_mad_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137) IB_MAD_IGNORE_MKEY = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138) IB_MAD_IGNORE_BKEY = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142) enum ib_mad_result {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143) IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144) IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145) IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149) struct ib_port_cache {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) u64 subnet_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151) struct ib_pkey_cache *pkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152) struct ib_gid_table *gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) u8 lmc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154) enum ib_port_state port_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157) struct ib_port_immutable {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) int pkey_tbl_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159) int gid_tbl_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160) u32 core_cap_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161) u32 max_mad_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164) struct ib_port_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165) struct ib_device *ib_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167) struct ib_port_immutable immutable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169) spinlock_t pkey_list_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) struct list_head pkey_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172) struct ib_port_cache cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174) spinlock_t netdev_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175) struct net_device __rcu *netdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176) struct hlist_node ndev_hash_link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177) struct rdma_port_counter port_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178) struct rdma_hw_stats *hw_stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181) /* rdma netdev type - specifies protocol type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182) enum rdma_netdev_t {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) RDMA_NETDEV_OPA_VNIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) RDMA_NETDEV_IPOIB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) * struct rdma_netdev - rdma netdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) * For cases where netstack interfacing is required.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191) struct rdma_netdev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) void *clnt_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193) struct ib_device *hca;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194) u8 port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) int mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198) * cleanup function must be specified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) * FIXME: This is only used for OPA_VNIC and that usage should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200) * removed too.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) void (*free_rdma_netdev)(struct net_device *netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) /* control functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205) void (*set_id)(struct net_device *netdev, int id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206) /* send packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) int (*send)(struct net_device *dev, struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208) struct ib_ah *address, u32 dqpn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209) /* multicast */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) int (*attach_mcast)(struct net_device *dev, struct ib_device *hca,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) union ib_gid *gid, u16 mlid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212) int set_qkey, u32 qkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213) int (*detach_mcast)(struct net_device *dev, struct ib_device *hca,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214) union ib_gid *gid, u16 mlid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) struct rdma_netdev_alloc_params {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218) size_t sizeof_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219) unsigned int txqs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) unsigned int rxqs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221) void *param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223) int (*initialize_rdma_netdev)(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) struct net_device *netdev, void *param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) struct ib_odp_counters {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228) atomic64_t faults;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) atomic64_t invalidations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) atomic64_t prefetch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233) struct ib_counters {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) struct ib_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235) struct ib_uobject *uobject;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236) /* num of objects attached */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237) atomic_t usecnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240) struct ib_counters_read_attr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241) u64 *counters_buff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) u32 ncounters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243) u32 flags; /* use enum ib_read_counters_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246) struct uverbs_attr_bundle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247) struct iw_cm_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) struct iw_cm_conn_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) #define INIT_RDMA_OBJ_SIZE(ib_struct, drv_struct, member) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251) .size_##ib_struct = \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) (sizeof(struct drv_struct) + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) BUILD_BUG_ON_ZERO(offsetof(struct drv_struct, member)) + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254) BUILD_BUG_ON_ZERO( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255) !__same_type(((struct drv_struct *)NULL)->member, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) struct ib_struct)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258) #define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) ((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, gfp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261) #define rdma_zalloc_drv_obj(ib_dev, ib_type) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262) rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, GFP_KERNEL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264) #define DECLARE_RDMA_OBJ_SIZE(ib_struct) size_t size_##ib_struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) struct rdma_user_mmap_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) struct kref ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268) struct ib_ucontext *ucontext;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) unsigned long start_pgoff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270) size_t npages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) bool driver_removed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) /* Return the offset (in bytes) the user should pass to libc's mmap() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275) static inline u64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276) rdma_user_mmap_get_offset(const struct rdma_user_mmap_entry *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278) return (u64)entry->start_pgoff << PAGE_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282) * struct ib_device_ops - InfiniBand device operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283) * This structure defines all the InfiniBand device operations, providers will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) * need to define the supported operations, otherwise they will be set to null.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286) struct ib_device_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287) struct module *owner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) enum rdma_driver_id driver_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) u32 uverbs_abi_ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) unsigned int uverbs_no_driver_id_binding:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) int (*post_send)(struct ib_qp *qp, const struct ib_send_wr *send_wr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293) const struct ib_send_wr **bad_send_wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) int (*post_recv)(struct ib_qp *qp, const struct ib_recv_wr *recv_wr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) const struct ib_recv_wr **bad_recv_wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) void (*drain_rq)(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) void (*drain_sq)(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298) int (*poll_cq)(struct ib_cq *cq, int num_entries, struct ib_wc *wc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299) int (*peek_cq)(struct ib_cq *cq, int wc_cnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300) int (*req_notify_cq)(struct ib_cq *cq, enum ib_cq_notify_flags flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301) int (*req_ncomp_notif)(struct ib_cq *cq, int wc_cnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) int (*post_srq_recv)(struct ib_srq *srq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) const struct ib_recv_wr *recv_wr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304) const struct ib_recv_wr **bad_recv_wr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) int (*process_mad)(struct ib_device *device, int process_mad_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306) u8 port_num, const struct ib_wc *in_wc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307) const struct ib_grh *in_grh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) const struct ib_mad *in_mad, struct ib_mad *out_mad,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309) size_t *out_mad_size, u16 *out_mad_pkey_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) int (*query_device)(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311) struct ib_device_attr *device_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313) int (*modify_device)(struct ib_device *device, int device_modify_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314) struct ib_device_modify *device_modify);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315) void (*get_dev_fw_str)(struct ib_device *device, char *str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316) const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) int comp_vector);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318) int (*query_port)(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) struct ib_port_attr *port_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) int (*modify_port)(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321) int port_modify_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322) struct ib_port_modify *port_modify);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) * The following mandatory functions are used only at device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) * registration. Keep functions such as these at the end of this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) * structure to avoid cache line misses when accessing struct ib_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) * in fast paths.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329) int (*get_port_immutable)(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) struct ib_port_immutable *immutable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) enum rdma_link_layer (*get_link_layer)(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334) * When calling get_netdev, the HW vendor's driver should return the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335) * net device of device @device at port @port_num or NULL if such
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336) * a net device doesn't exist. The vendor driver should call dev_hold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337) * on this net device. The HW vendor's device driver must guarantee
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) * that this function returns NULL before the net device has finished
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) * NETDEV_UNREGISTER state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341) struct net_device *(*get_netdev)(struct ib_device *device, u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) * rdma netdev operation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345) * Driver implementing alloc_rdma_netdev or rdma_netdev_get_params
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346) * must return -EOPNOTSUPP if it doesn't support the specified type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348) struct net_device *(*alloc_rdma_netdev)(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) struct ib_device *device, u8 port_num, enum rdma_netdev_t type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350) const char *name, unsigned char name_assign_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351) void (*setup)(struct net_device *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) int (*rdma_netdev_get_params)(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354) enum rdma_netdev_t type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355) struct rdma_netdev_alloc_params *params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357) * query_gid should be return GID value for @device, when @port_num
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358) * link layer is either IB or iWarp. It is no-op if @port_num port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359) * is RoCE link layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361) int (*query_gid)(struct ib_device *device, u8 port_num, int index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) union ib_gid *gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364) * When calling add_gid, the HW vendor's driver should add the gid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365) * of device of port at gid index available at @attr. Meta-info of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366) * that gid (for example, the network device related to this gid) is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367) * available at @attr. @context allows the HW vendor driver to store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) * extra information together with a GID entry. The HW vendor driver may
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369) * allocate memory to contain this information and store it in @context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370) * when a new GID entry is written to. Params are consistent until the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371) * next call of add_gid or delete_gid. The function should return 0 on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) * success or error otherwise. The function could be called
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) * concurrently for different ports. This function is only called when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374) * roce_gid_table is used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376) int (*add_gid)(const struct ib_gid_attr *attr, void **context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378) * When calling del_gid, the HW vendor's driver should delete the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) * gid of device @device at gid index gid_index of port port_num
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380) * available in @attr.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381) * Upon the deletion of a GID entry, the HW vendor must free any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382) * allocated memory. The caller will clear @context afterwards.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) * This function is only called when roce_gid_table is used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) int (*del_gid)(const struct ib_gid_attr *attr, void **context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) int (*query_pkey)(struct ib_device *device, u8 port_num, u16 index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) u16 *pkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388) int (*alloc_ucontext)(struct ib_ucontext *context,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390) void (*dealloc_ucontext)(struct ib_ucontext *context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) int (*mmap)(struct ib_ucontext *context, struct vm_area_struct *vma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393) * This will be called once refcount of an entry in mmap_xa reaches
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394) * zero. The type of the memory that was mapped may differ between
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) * entries and is opaque to the rdma_user_mmap interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) * Therefore needs to be implemented by the driver in mmap_free.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398) void (*mmap_free)(struct rdma_user_mmap_entry *entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399) void (*disassociate_ucontext)(struct ib_ucontext *ibcontext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400) int (*alloc_pd)(struct ib_pd *pd, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401) int (*dealloc_pd)(struct ib_pd *pd, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402) int (*create_ah)(struct ib_ah *ah, struct rdma_ah_init_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404) int (*modify_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405) int (*query_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406) int (*destroy_ah)(struct ib_ah *ah, u32 flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407) int (*create_srq)(struct ib_srq *srq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408) struct ib_srq_init_attr *srq_init_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410) int (*modify_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411) enum ib_srq_attr_mask srq_attr_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413) int (*query_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) int (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415) struct ib_qp *(*create_qp)(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416) struct ib_qp_init_attr *qp_init_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418) int (*modify_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) int qp_attr_mask, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420) int (*query_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422) int (*destroy_qp)(struct ib_qp *qp, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423) int (*create_cq)(struct ib_cq *cq, const struct ib_cq_init_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425) int (*modify_cq)(struct ib_cq *cq, u16 cq_count, u16 cq_period);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426) int (*destroy_cq)(struct ib_cq *cq, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) int (*resize_cq)(struct ib_cq *cq, int cqe, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428) struct ib_mr *(*get_dma_mr)(struct ib_pd *pd, int mr_access_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) struct ib_mr *(*reg_user_mr)(struct ib_pd *pd, u64 start, u64 length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) u64 virt_addr, int mr_access_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432) int (*rereg_user_mr)(struct ib_mr *mr, int flags, u64 start, u64 length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) u64 virt_addr, int mr_access_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) struct ib_pd *pd, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) int (*dereg_mr)(struct ib_mr *mr, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437) u32 max_num_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438) struct ib_mr *(*alloc_mr_integrity)(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) u32 max_num_data_sg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) u32 max_num_meta_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441) int (*advise_mr)(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) enum ib_uverbs_advise_mr_advice advice, u32 flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) struct ib_sge *sg_list, u32 num_sge,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445) int (*map_mr_sg)(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446) unsigned int *sg_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447) int (*check_mr_status)(struct ib_mr *mr, u32 check_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) struct ib_mr_status *mr_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) int (*alloc_mw)(struct ib_mw *mw, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450) int (*dealloc_mw)(struct ib_mw *mw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451) int (*attach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452) int (*detach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453) int (*alloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454) int (*dealloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) struct ib_flow *(*create_flow)(struct ib_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456) struct ib_flow_attr *flow_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458) int (*destroy_flow)(struct ib_flow *flow_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459) struct ib_flow_action *(*create_flow_action_esp)(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460) struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461) const struct ib_flow_action_attrs_esp *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) int (*destroy_flow_action)(struct ib_flow_action *action);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464) int (*modify_flow_action_esp)(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465) struct ib_flow_action *action,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466) const struct ib_flow_action_attrs_esp *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469) int state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) int (*get_vf_config)(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) struct ifla_vf_info *ivf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2472) int (*get_vf_stats)(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2473) struct ifla_vf_stats *stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2474) int (*get_vf_guid)(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2475) struct ifla_vf_guid *node_guid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2476) struct ifla_vf_guid *port_guid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2477) int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2478) int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2479) struct ib_wq *(*create_wq)(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2480) struct ib_wq_init_attr *init_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2481) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2482) int (*destroy_wq)(struct ib_wq *wq, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2483) int (*modify_wq)(struct ib_wq *wq, struct ib_wq_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2484) u32 wq_attr_mask, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2485) int (*create_rwq_ind_table)(struct ib_rwq_ind_table *ib_rwq_ind_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2486) struct ib_rwq_ind_table_init_attr *init_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2487) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2488) int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2489) struct ib_dm *(*alloc_dm)(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2490) struct ib_ucontext *context,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2491) struct ib_dm_alloc_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2492) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2493) int (*dealloc_dm)(struct ib_dm *dm, struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2494) struct ib_mr *(*reg_dm_mr)(struct ib_pd *pd, struct ib_dm *dm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2495) struct ib_dm_mr_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2496) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2497) int (*create_counters)(struct ib_counters *counters,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2498) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2499) int (*destroy_counters)(struct ib_counters *counters);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2500) int (*read_counters)(struct ib_counters *counters,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2501) struct ib_counters_read_attr *counters_read_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2502) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2503) int (*map_mr_sg_pi)(struct ib_mr *mr, struct scatterlist *data_sg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2504) int data_sg_nents, unsigned int *data_sg_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2505) struct scatterlist *meta_sg, int meta_sg_nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2506) unsigned int *meta_sg_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2508) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2509) * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2510) * driver initialized data. The struct is kfree()'ed by the sysfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2511) * core when the device is removed. A lifespan of -1 in the return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2512) * struct tells the core to set a default lifespan.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2513) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2514) struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2515) u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2516) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2517) * get_hw_stats - Fill in the counter value(s) in the stats struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2518) * @index - The index in the value array we wish to have updated, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2519) * num_counters if we want all stats updated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2520) * Return codes -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2521) * < 0 - Error, no counters updated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2522) * index - Updated the single counter pointed to by index
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2523) * num_counters - Updated all counters (will reset the timestamp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2524) * and prevent further calls for lifespan milliseconds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2525) * Drivers are allowed to update all counters in leiu of just the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2526) * one given in index at their option
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2527) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2528) int (*get_hw_stats)(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2529) struct rdma_hw_stats *stats, u8 port, int index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2530) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2531) * This function is called once for each port when a ib device is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2532) * registered.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2533) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2534) int (*init_port)(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2535) struct kobject *port_sysfs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2536) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2537) * Allows rdma drivers to add their own restrack attributes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2538) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2539) int (*fill_res_mr_entry)(struct sk_buff *msg, struct ib_mr *ibmr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2540) int (*fill_res_mr_entry_raw)(struct sk_buff *msg, struct ib_mr *ibmr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2541) int (*fill_res_cq_entry)(struct sk_buff *msg, struct ib_cq *ibcq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2542) int (*fill_res_cq_entry_raw)(struct sk_buff *msg, struct ib_cq *ibcq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2543) int (*fill_res_qp_entry)(struct sk_buff *msg, struct ib_qp *ibqp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2544) int (*fill_res_qp_entry_raw)(struct sk_buff *msg, struct ib_qp *ibqp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2545) int (*fill_res_cm_id_entry)(struct sk_buff *msg, struct rdma_cm_id *id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2547) /* Device lifecycle callbacks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2548) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2549) * Called after the device becomes registered, before clients are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2550) * attached
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2551) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2552) int (*enable_driver)(struct ib_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2553) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2554) * This is called as part of ib_dealloc_device().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2555) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2556) void (*dealloc_driver)(struct ib_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2558) /* iWarp CM callbacks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2559) void (*iw_add_ref)(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2560) void (*iw_rem_ref)(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2561) struct ib_qp *(*iw_get_qp)(struct ib_device *device, int qpn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2562) int (*iw_connect)(struct iw_cm_id *cm_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2563) struct iw_cm_conn_param *conn_param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2564) int (*iw_accept)(struct iw_cm_id *cm_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2565) struct iw_cm_conn_param *conn_param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2566) int (*iw_reject)(struct iw_cm_id *cm_id, const void *pdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2567) u8 pdata_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2568) int (*iw_create_listen)(struct iw_cm_id *cm_id, int backlog);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2569) int (*iw_destroy_listen)(struct iw_cm_id *cm_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2570) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2571) * counter_bind_qp - Bind a QP to a counter.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2572) * @counter - The counter to be bound. If counter->id is zero then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2573) * the driver needs to allocate a new counter and set counter->id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2574) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2575) int (*counter_bind_qp)(struct rdma_counter *counter, struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2576) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2577) * counter_unbind_qp - Unbind the qp from the dynamically-allocated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2578) * counter and bind it onto the default one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2579) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2580) int (*counter_unbind_qp)(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2581) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2582) * counter_dealloc -De-allocate the hw counter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2583) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2584) int (*counter_dealloc)(struct rdma_counter *counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2585) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2586) * counter_alloc_stats - Allocate a struct rdma_hw_stats and fill in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2587) * the driver initialized data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2588) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2589) struct rdma_hw_stats *(*counter_alloc_stats)(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2590) struct rdma_counter *counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2591) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2592) * counter_update_stats - Query the stats value of this counter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2593) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2594) int (*counter_update_stats)(struct rdma_counter *counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2596) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2597) * Allows rdma drivers to add their own restrack attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2598) * dumped via 'rdma stat' iproute2 command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2599) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2600) int (*fill_stat_mr_entry)(struct sk_buff *msg, struct ib_mr *ibmr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2602) /* query driver for its ucontext properties */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2603) int (*query_ucontext)(struct ib_ucontext *context,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2604) struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2606) DECLARE_RDMA_OBJ_SIZE(ib_ah);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2607) DECLARE_RDMA_OBJ_SIZE(ib_counters);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2608) DECLARE_RDMA_OBJ_SIZE(ib_cq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2609) DECLARE_RDMA_OBJ_SIZE(ib_mw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2610) DECLARE_RDMA_OBJ_SIZE(ib_pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2611) DECLARE_RDMA_OBJ_SIZE(ib_rwq_ind_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2612) DECLARE_RDMA_OBJ_SIZE(ib_srq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2613) DECLARE_RDMA_OBJ_SIZE(ib_ucontext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2614) DECLARE_RDMA_OBJ_SIZE(ib_xrcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2615) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2617) struct ib_core_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2618) /* device must be the first element in structure until,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2619) * union of ib_core_device and device exists in ib_device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2620) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2621) struct device dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2622) possible_net_t rdma_net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2623) struct kobject *ports_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2624) struct list_head port_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2625) struct ib_device *owner; /* reach back to owner ib_device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2626) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2628) struct rdma_restrack_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2629) struct ib_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2630) /* Do not access @dma_device directly from ULP nor from HW drivers. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2631) struct device *dma_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2632) struct ib_device_ops ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2633) char name[IB_DEVICE_NAME_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2634) struct rcu_head rcu_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2636) struct list_head event_handler_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2637) /* Protects event_handler_list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2638) struct rw_semaphore event_handler_rwsem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2640) /* Protects QP's event_handler calls and open_qp list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2641) spinlock_t qp_open_list_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2643) struct rw_semaphore client_data_rwsem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2644) struct xarray client_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2645) struct mutex unregistration_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2647) /* Synchronize GID, Pkey cache entries, subnet prefix, LMC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2648) rwlock_t cache_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2649) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2650) * port_data is indexed by port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2651) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2652) struct ib_port_data *port_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2654) int num_comp_vectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2656) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2657) struct device dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2658) struct ib_core_device coredev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2659) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2661) /* First group for device attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2662) * Second group for driver provided attributes (optional).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2663) * It is NULL terminated array.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2664) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2665) const struct attribute_group *groups[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2667) u64 uverbs_cmd_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2668) u64 uverbs_ex_cmd_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2670) char node_desc[IB_DEVICE_NODE_DESC_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2671) __be64 node_guid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2672) u32 local_dma_lkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2673) u16 is_switch:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2674) /* Indicates kernel verbs support, should not be used in drivers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2675) u16 kverbs_provider:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2676) /* CQ adaptive moderation (RDMA DIM) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2677) u16 use_cq_dim:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2678) u8 node_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2679) u8 phys_port_cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2680) struct ib_device_attr attrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2681) struct attribute_group *hw_stats_ag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2682) struct rdma_hw_stats *hw_stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2684) #ifdef CONFIG_CGROUP_RDMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2685) struct rdmacg_device cg_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2686) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2688) u32 index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2690) spinlock_t cq_pools_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2691) struct list_head cq_pools[IB_POLL_LAST_POOL_TYPE + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2693) struct rdma_restrack_root *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2695) const struct uapi_definition *driver_def;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2697) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2698) * Positive refcount indicates that the device is currently
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2699) * registered and cannot be unregistered.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2700) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2701) refcount_t refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2702) struct completion unreg_completion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2703) struct work_struct unregistration_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2705) const struct rdma_link_ops *link_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2706)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2707) /* Protects compat_devs xarray modifications */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2708) struct mutex compat_devs_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2709) /* Maintains compat devices for each net namespace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2710) struct xarray compat_devs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2712) /* Used by iWarp CM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2713) char iw_ifname[IFNAMSIZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2714) u32 iw_driver_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2715) u32 lag_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2716) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2717)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2718) struct ib_client_nl_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2719) struct ib_client {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2720) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2721) int (*add)(struct ib_device *ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2722) void (*remove)(struct ib_device *, void *client_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2723) void (*rename)(struct ib_device *dev, void *client_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2724) int (*get_nl_info)(struct ib_device *ibdev, void *client_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2725) struct ib_client_nl_info *res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2726) int (*get_global_nl_info)(struct ib_client_nl_info *res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2728) /* Returns the net_dev belonging to this ib_client and matching the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2729) * given parameters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2730) * @dev: An RDMA device that the net_dev use for communication.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2731) * @port: A physical port number on the RDMA device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2732) * @pkey: P_Key that the net_dev uses if applicable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2733) * @gid: A GID that the net_dev uses to communicate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2734) * @addr: An IP address the net_dev is configured with.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2735) * @client_data: The device's client data set by ib_set_client_data().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2736) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2737) * An ib_client that implements a net_dev on top of RDMA devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2738) * (such as IP over IB) should implement this callback, allowing the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2739) * rdma_cm module to find the right net_dev for a given request.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2740) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2741) * The caller is responsible for calling dev_put on the returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2742) * netdev. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2743) struct net_device *(*get_net_dev_by_params)(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2744) struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2745) u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2746) u16 pkey,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2747) const union ib_gid *gid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2748) const struct sockaddr *addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2749) void *client_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2750)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2751) refcount_t uses;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2752) struct completion uses_zero;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2753) u32 client_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2755) /* kverbs are not required by the client */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2756) u8 no_kverbs_req:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2757) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2758)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2759) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2760) * IB block DMA iterator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2761) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2762) * Iterates the DMA-mapped SGL in contiguous memory blocks aligned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2763) * to a HW supported page size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2764) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2765) struct ib_block_iter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2766) /* internal states */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2767) struct scatterlist *__sg; /* sg holding the current aligned block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2768) dma_addr_t __dma_addr; /* unaligned DMA address of this block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2769) unsigned int __sg_nents; /* number of SG entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2770) unsigned int __sg_advance; /* number of bytes to advance in sg in next step */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2771) unsigned int __pg_bit; /* alignment of current block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2772) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2774) struct ib_device *_ib_alloc_device(size_t size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2775) #define ib_alloc_device(drv_struct, member) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2776) container_of(_ib_alloc_device(sizeof(struct drv_struct) + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2777) BUILD_BUG_ON_ZERO(offsetof( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2778) struct drv_struct, member))), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2779) struct drv_struct, member)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2781) void ib_dealloc_device(struct ib_device *device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2783) void ib_get_device_fw_str(struct ib_device *device, char *str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2785) int ib_register_device(struct ib_device *device, const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2786) struct device *dma_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2787) void ib_unregister_device(struct ib_device *device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2788) void ib_unregister_driver(enum rdma_driver_id driver_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2789) void ib_unregister_device_and_put(struct ib_device *device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2790) void ib_unregister_device_queued(struct ib_device *ib_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2792) int ib_register_client (struct ib_client *client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2793) void ib_unregister_client(struct ib_client *client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2795) void __rdma_block_iter_start(struct ib_block_iter *biter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2796) struct scatterlist *sglist,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2797) unsigned int nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2798) unsigned long pgsz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2799) bool __rdma_block_iter_next(struct ib_block_iter *biter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2801) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2802) * rdma_block_iter_dma_address - get the aligned dma address of the current
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2803) * block held by the block iterator.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2804) * @biter: block iterator holding the memory block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2805) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2806) static inline dma_addr_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2807) rdma_block_iter_dma_address(struct ib_block_iter *biter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2808) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2809) return biter->__dma_addr & ~(BIT_ULL(biter->__pg_bit) - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2810) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2811)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2812) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2813) * rdma_for_each_block - iterate over contiguous memory blocks of the sg list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2814) * @sglist: sglist to iterate over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2815) * @biter: block iterator holding the memory block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2816) * @nents: maximum number of sg entries to iterate over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2817) * @pgsz: best HW supported page size to use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2818) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2819) * Callers may use rdma_block_iter_dma_address() to get each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2820) * blocks aligned DMA address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2821) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2822) #define rdma_for_each_block(sglist, biter, nents, pgsz) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2823) for (__rdma_block_iter_start(biter, sglist, nents, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2824) pgsz); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2825) __rdma_block_iter_next(biter);)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2827) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2828) * ib_get_client_data - Get IB client context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2829) * @device:Device to get context for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2830) * @client:Client to get context for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2831) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2832) * ib_get_client_data() returns the client context data set with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2833) * ib_set_client_data(). This can only be called while the client is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2834) * registered to the device, once the ib_client remove() callback returns this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2835) * cannot be called.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2836) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2837) static inline void *ib_get_client_data(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2838) struct ib_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2839) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2840) return xa_load(&device->client_data, client->client_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2841) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2842) void ib_set_client_data(struct ib_device *device, struct ib_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2843) void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2844) void ib_set_device_ops(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2845) const struct ib_device_ops *ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2847) int rdma_user_mmap_io(struct ib_ucontext *ucontext, struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2848) unsigned long pfn, unsigned long size, pgprot_t prot,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2849) struct rdma_user_mmap_entry *entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2850) int rdma_user_mmap_entry_insert(struct ib_ucontext *ucontext,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2851) struct rdma_user_mmap_entry *entry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2852) size_t length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2853) int rdma_user_mmap_entry_insert_range(struct ib_ucontext *ucontext,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2854) struct rdma_user_mmap_entry *entry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2855) size_t length, u32 min_pgoff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2856) u32 max_pgoff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2858) struct rdma_user_mmap_entry *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2859) rdma_user_mmap_entry_get_pgoff(struct ib_ucontext *ucontext,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2860) unsigned long pgoff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2861) struct rdma_user_mmap_entry *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2862) rdma_user_mmap_entry_get(struct ib_ucontext *ucontext,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2863) struct vm_area_struct *vma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2864) void rdma_user_mmap_entry_put(struct rdma_user_mmap_entry *entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2866) void rdma_user_mmap_entry_remove(struct rdma_user_mmap_entry *entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2868) static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2869) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2870) return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2871) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2873) static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2874) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2875) return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2876) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2878) static inline bool ib_is_buffer_cleared(const void __user *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2879) size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2880) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2881) bool ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2882) u8 *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2884) if (len > USHRT_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2885) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2887) buf = memdup_user(p, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2888) if (IS_ERR(buf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2889) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2891) ret = !memchr_inv(buf, 0, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2892) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2893) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2894) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2896) static inline bool ib_is_udata_cleared(struct ib_udata *udata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2897) size_t offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2898) size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2899) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2900) return ib_is_buffer_cleared(udata->inbuf + offset, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2901) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2902)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2903) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2904) * ib_is_destroy_retryable - Check whether the uobject destruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2905) * is retryable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2906) * @ret: The initial destruction return code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2907) * @why: remove reason
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2908) * @uobj: The uobject that is destroyed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2909) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2910) * This function is a helper function that IB layer and low-level drivers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2911) * can use to consider whether the destruction of the given uobject is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2912) * retry-able.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2913) * It checks the original return code, if it wasn't success the destruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2914) * is retryable according to the ucontext state (i.e. cleanup_retryable) and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2915) * the remove reason. (i.e. why).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2916) * Must be called with the object locked for destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2917) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2918) static inline bool ib_is_destroy_retryable(int ret, enum rdma_remove_reason why,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2919) struct ib_uobject *uobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2920) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2921) return ret && (why == RDMA_REMOVE_DESTROY ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2922) uobj->context->cleanup_retryable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2923) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2924)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2925) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2926) * ib_destroy_usecnt - Called during destruction to check the usecnt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2927) * @usecnt: The usecnt atomic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2928) * @why: remove reason
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2929) * @uobj: The uobject that is destroyed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2930) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2931) * Non-zero usecnts will block destruction unless destruction was triggered by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2932) * a ucontext cleanup.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2933) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2934) static inline int ib_destroy_usecnt(atomic_t *usecnt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2935) enum rdma_remove_reason why,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2936) struct ib_uobject *uobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2937) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2938) if (atomic_read(usecnt) && ib_is_destroy_retryable(-EBUSY, why, uobj))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2939) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2940) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2941) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2943) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2944) * ib_modify_qp_is_ok - Check that the supplied attribute mask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2945) * contains all required attributes and no attributes not allowed for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2946) * the given QP state transition.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2947) * @cur_state: Current QP state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2948) * @next_state: Next QP state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2949) * @type: QP type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2950) * @mask: Mask of supplied QP attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2951) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2952) * This function is a helper function that a low-level driver's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2953) * modify_qp method can use to validate the consumer's input. It
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2954) * checks that cur_state and next_state are valid QP states, that a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2955) * transition from cur_state to next_state is allowed by the IB spec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2956) * and that the attribute mask supplied is allowed for the transition.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2957) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2958) bool ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2959) enum ib_qp_type type, enum ib_qp_attr_mask mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2961) void ib_register_event_handler(struct ib_event_handler *event_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2962) void ib_unregister_event_handler(struct ib_event_handler *event_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2963) void ib_dispatch_event(const struct ib_event *event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2964)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2965) int ib_query_port(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2966) u8 port_num, struct ib_port_attr *port_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2968) enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2969) u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2971) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2972) * rdma_cap_ib_switch - Check if the device is IB switch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2973) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2974) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2975) * Device driver is responsible for setting is_switch bit on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2976) * in ib_device structure at init time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2977) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2978) * Return: true if the device is IB switch.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2979) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2980) static inline bool rdma_cap_ib_switch(const struct ib_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2981) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2982) return device->is_switch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2983) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2984)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2985) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2986) * rdma_start_port - Return the first valid port number for the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2987) * specified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2988) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2989) * @device: Device to be checked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2990) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2991) * Return start port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2992) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2993) static inline u8 rdma_start_port(const struct ib_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2994) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2995) return rdma_cap_ib_switch(device) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2996) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2997)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2998) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2999) * rdma_for_each_port - Iterate over all valid port numbers of the IB device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3000) * @device - The struct ib_device * to iterate over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3001) * @iter - The unsigned int to store the port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3002) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3003) #define rdma_for_each_port(device, iter) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3004) for (iter = rdma_start_port(device + BUILD_BUG_ON_ZERO(!__same_type( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3005) unsigned int, iter))); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3006) iter <= rdma_end_port(device); (iter)++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3007)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3008) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3009) * rdma_end_port - Return the last valid port number for the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3010) * specified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3011) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3012) * @device: Device to be checked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3013) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3014) * Return last port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3015) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3016) static inline u8 rdma_end_port(const struct ib_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3017) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3018) return rdma_cap_ib_switch(device) ? 0 : device->phys_port_cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3019) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3021) static inline int rdma_is_port_valid(const struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3022) unsigned int port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3023) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3024) return (port >= rdma_start_port(device) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3025) port <= rdma_end_port(device));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3026) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3028) static inline bool rdma_is_grh_required(const struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3029) u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3030) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3031) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3032) RDMA_CORE_PORT_IB_GRH_REQUIRED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3033) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3034)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3035) static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3036) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3037) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3038) RDMA_CORE_CAP_PROT_IB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3039) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3041) static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3042) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3043) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3044) (RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3045) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3046)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3047) static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3048) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3049) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3050) RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3051) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3052)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3053) static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3054) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3055) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3056) RDMA_CORE_CAP_PROT_ROCE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3057) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3059) static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3060) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3061) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3062) RDMA_CORE_CAP_PROT_IWARP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3063) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3065) static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3066) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3067) return rdma_protocol_ib(device, port_num) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3068) rdma_protocol_roce(device, port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3069) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3071) static inline bool rdma_protocol_raw_packet(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3072) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3073) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3074) RDMA_CORE_CAP_PROT_RAW_PACKET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3075) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3076)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3077) static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3078) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3079) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3080) RDMA_CORE_CAP_PROT_USNIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3081) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3083) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3084) * rdma_cap_ib_mad - Check if the port of a device supports Infiniband
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3085) * Management Datagrams.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3086) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3087) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3088) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3089) * Management Datagrams (MAD) are a required part of the InfiniBand
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3090) * specification and are supported on all InfiniBand devices. A slightly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3091) * extended version are also supported on OPA interfaces.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3092) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3093) * Return: true if the port supports sending/receiving of MAD packets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3094) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3095) static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3096) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3097) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3098) RDMA_CORE_CAP_IB_MAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3099) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3101) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3102) * rdma_cap_opa_mad - Check if the port of device provides support for OPA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3103) * Management Datagrams.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3104) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3105) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3106) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3107) * Intel OmniPath devices extend and/or replace the InfiniBand Management
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3108) * datagrams with their own versions. These OPA MADs share many but not all of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3109) * the characteristics of InfiniBand MADs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3110) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3111) * OPA MADs differ in the following ways:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3112) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3113) * 1) MADs are variable size up to 2K
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3114) * IBTA defined MADs remain fixed at 256 bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3115) * 2) OPA SMPs must carry valid PKeys
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3116) * 3) OPA SMP packets are a different format
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3117) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3118) * Return: true if the port supports OPA MAD packet formats.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3119) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3120) static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3122) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3123) RDMA_CORE_CAP_OPA_MAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3126) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3127) * rdma_cap_ib_smi - Check if the port of a device provides an Infiniband
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3128) * Subnet Management Agent (SMA) on the Subnet Management Interface (SMI).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3129) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3130) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3131) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3132) * Each InfiniBand node is required to provide a Subnet Management Agent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3133) * that the subnet manager can access. Prior to the fabric being fully
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3134) * configured by the subnet manager, the SMA is accessed via a well known
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3135) * interface called the Subnet Management Interface (SMI). This interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3136) * uses directed route packets to communicate with the SM to get around the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3137) * chicken and egg problem of the SM needing to know what's on the fabric
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3138) * in order to configure the fabric, and needing to configure the fabric in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3139) * order to send packets to the devices on the fabric. These directed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3140) * route packets do not need the fabric fully configured in order to reach
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3141) * their destination. The SMI is the only method allowed to send
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3142) * directed route packets on an InfiniBand fabric.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3143) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3144) * Return: true if the port provides an SMI.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3145) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3146) static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3148) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3149) RDMA_CORE_CAP_IB_SMI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3152) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3153) * rdma_cap_ib_cm - Check if the port of device has the capability Infiniband
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3154) * Communication Manager.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3155) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3156) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3157) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3158) * The InfiniBand Communication Manager is one of many pre-defined General
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3159) * Service Agents (GSA) that are accessed via the General Service
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3160) * Interface (GSI). It's role is to facilitate establishment of connections
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3161) * between nodes as well as other management related tasks for established
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3162) * connections.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3163) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3164) * Return: true if the port supports an IB CM (this does not guarantee that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3165) * a CM is actually running however).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3166) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3167) static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3169) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3170) RDMA_CORE_CAP_IB_CM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3173) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3174) * rdma_cap_iw_cm - Check if the port of device has the capability IWARP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3175) * Communication Manager.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3176) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3177) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3178) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3179) * Similar to above, but specific to iWARP connections which have a different
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3180) * managment protocol than InfiniBand.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3181) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3182) * Return: true if the port supports an iWARP CM (this does not guarantee that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3183) * a CM is actually running however).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3184) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3185) static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3187) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3188) RDMA_CORE_CAP_IW_CM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3191) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3192) * rdma_cap_ib_sa - Check if the port of device has the capability Infiniband
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3193) * Subnet Administration.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3194) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3195) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3196) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3197) * An InfiniBand Subnet Administration (SA) service is a pre-defined General
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3198) * Service Agent (GSA) provided by the Subnet Manager (SM). On InfiniBand
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3199) * fabrics, devices should resolve routes to other hosts by contacting the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3200) * SA to query the proper route.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3201) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3202) * Return: true if the port should act as a client to the fabric Subnet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3203) * Administration interface. This does not imply that the SA service is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3204) * running locally.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3205) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3206) static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3208) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3209) RDMA_CORE_CAP_IB_SA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3210) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3212) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3213) * rdma_cap_ib_mcast - Check if the port of device has the capability Infiniband
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3214) * Multicast.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3215) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3216) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3217) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3218) * InfiniBand multicast registration is more complex than normal IPv4 or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3219) * IPv6 multicast registration. Each Host Channel Adapter must register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3220) * with the Subnet Manager when it wishes to join a multicast group. It
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3221) * should do so only once regardless of how many queue pairs it subscribes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3222) * to this group. And it should leave the group only after all queue pairs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3223) * attached to the group have been detached.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3224) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3225) * Return: true if the port must undertake the additional adminstrative
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3226) * overhead of registering/unregistering with the SM and tracking of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3227) * total number of queue pairs attached to the multicast group.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3228) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3229) static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3231) return rdma_cap_ib_sa(device, port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3234) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3235) * rdma_cap_af_ib - Check if the port of device has the capability
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3236) * Native Infiniband Address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3237) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3238) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3239) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3240) * InfiniBand addressing uses a port's GUID + Subnet Prefix to make a default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3241) * GID. RoCE uses a different mechanism, but still generates a GID via
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3242) * a prescribed mechanism and port specific data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3243) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3244) * Return: true if the port uses a GID address to identify devices on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3245) * network.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3246) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3247) static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3249) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3250) RDMA_CORE_CAP_AF_IB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3251) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3253) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3254) * rdma_cap_eth_ah - Check if the port of device has the capability
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3255) * Ethernet Address Handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3256) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3257) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3258) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3259) * RoCE is InfiniBand over Ethernet, and it uses a well defined technique
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3260) * to fabricate GIDs over Ethernet/IP specific addresses native to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3261) * port. Normally, packet headers are generated by the sending host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3262) * adapter, but when sending connectionless datagrams, we must manually
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3263) * inject the proper headers for the fabric we are communicating over.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3264) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3265) * Return: true if we are running as a RoCE port and must force the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3266) * addition of a Global Route Header built from our Ethernet Address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3267) * Handle into our header list for connectionless packets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3268) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3269) static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3271) return device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3272) RDMA_CORE_CAP_ETH_AH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3275) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3276) * rdma_cap_opa_ah - Check if the port of device supports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3277) * OPA Address handles
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3278) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3279) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3280) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3281) * Return: true if we are running on an OPA device which supports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3282) * the extended OPA addressing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3283) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3284) static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3286) return (device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3287) RDMA_CORE_CAP_OPA_AH) == RDMA_CORE_CAP_OPA_AH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3290) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3291) * rdma_max_mad_size - Return the max MAD size required by this RDMA Port.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3292) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3293) * @device: Device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3294) * @port_num: Port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3295) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3296) * This MAD size includes the MAD headers and MAD payload. No other headers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3297) * are included.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3298) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3299) * Return the max MAD size required by the Port. Will return 0 if the port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3300) * does not support MADs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3301) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3302) static inline size_t rdma_max_mad_size(const struct ib_device *device, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3303) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3304) return device->port_data[port_num].immutable.max_mad_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3307) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3308) * rdma_cap_roce_gid_table - Check if the port of device uses roce_gid_table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3309) * @device: Device to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3310) * @port_num: Port number to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3311) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3312) * RoCE GID table mechanism manages the various GIDs for a device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3313) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3314) * NOTE: if allocating the port's GID table has failed, this call will still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3315) * return true, but any RoCE GID table API will fail.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3316) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3317) * Return: true if the port uses RoCE GID table mechanism in order to manage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3318) * its GIDs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3319) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3320) static inline bool rdma_cap_roce_gid_table(const struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3321) u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3322) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3323) return rdma_protocol_roce(device, port_num) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3324) device->ops.add_gid && device->ops.del_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3327) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3328) * Check if the device supports READ W/ INVALIDATE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3329) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3330) static inline bool rdma_cap_read_inv(struct ib_device *dev, u32 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3331) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3332) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3333) * iWarp drivers must support READ W/ INVALIDATE. No other protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3334) * has support for it yet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3335) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3336) return rdma_protocol_iwarp(dev, port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3337) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3339) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3340) * rdma_core_cap_opa_port - Return whether the RDMA Port is OPA or not.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3341) * @device: Device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3342) * @port_num: 1 based Port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3343) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3344) * Return true if port is an Intel OPA port , false if not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3345) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3346) static inline bool rdma_core_cap_opa_port(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3347) u32 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3349) return (device->port_data[port_num].immutable.core_cap_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3350) RDMA_CORE_PORT_INTEL_OPA) == RDMA_CORE_PORT_INTEL_OPA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3353) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3354) * rdma_mtu_enum_to_int - Return the mtu of the port as an integer value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3355) * @device: Device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3356) * @port_num: Port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3357) * @mtu: enum value of MTU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3358) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3359) * Return the MTU size supported by the port as an integer value. Will return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3360) * -1 if enum value of mtu is not supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3361) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3362) static inline int rdma_mtu_enum_to_int(struct ib_device *device, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3363) int mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3364) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3365) if (rdma_core_cap_opa_port(device, port))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3366) return opa_mtu_enum_to_int((enum opa_mtu)mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3367) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3368) return ib_mtu_enum_to_int((enum ib_mtu)mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3371) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3372) * rdma_mtu_from_attr - Return the mtu of the port from the port attribute.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3373) * @device: Device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3374) * @port_num: Port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3375) * @attr: port attribute
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3376) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3377) * Return the MTU size supported by the port as an integer value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3378) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3379) static inline int rdma_mtu_from_attr(struct ib_device *device, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3380) struct ib_port_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3381) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3382) if (rdma_core_cap_opa_port(device, port))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3383) return attr->phys_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3384) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3385) return ib_mtu_enum_to_int(attr->max_mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3388) int ib_set_vf_link_state(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3389) int state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3390) int ib_get_vf_config(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3391) struct ifla_vf_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3392) int ib_get_vf_stats(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3393) struct ifla_vf_stats *stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3394) int ib_get_vf_guid(struct ib_device *device, int vf, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3395) struct ifla_vf_guid *node_guid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3396) struct ifla_vf_guid *port_guid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3397) int ib_set_vf_guid(struct ib_device *device, int vf, u8 port, u64 guid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3398) int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3400) int ib_query_pkey(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3401) u8 port_num, u16 index, u16 *pkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3403) int ib_modify_device(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3404) int device_modify_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3405) struct ib_device_modify *device_modify);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3407) int ib_modify_port(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3408) u8 port_num, int port_modify_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3409) struct ib_port_modify *port_modify);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3411) int ib_find_gid(struct ib_device *device, union ib_gid *gid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3412) u8 *port_num, u16 *index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3414) int ib_find_pkey(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3415) u8 port_num, u16 pkey, u16 *index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3417) enum ib_pd_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3418) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3419) * Create a memory registration for all memory in the system and place
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3420) * the rkey for it into pd->unsafe_global_rkey. This can be used by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3421) * ULPs to avoid the overhead of dynamic MRs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3422) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3423) * This flag is generally considered unsafe and must only be used in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3424) * extremly trusted environments. Every use of it will log a warning
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3425) * in the kernel log.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3426) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3427) IB_PD_UNSAFE_GLOBAL_RKEY = 0x01,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3428) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3430) struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3431) const char *caller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3433) #define ib_alloc_pd(device, flags) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3434) __ib_alloc_pd((device), (flags), KBUILD_MODNAME)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3436) int ib_dealloc_pd_user(struct ib_pd *pd, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3438) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3439) * ib_dealloc_pd - Deallocate kernel PD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3440) * @pd: The protection domain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3441) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3442) * NOTE: for user PD use ib_dealloc_pd_user with valid udata!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3443) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3444) static inline void ib_dealloc_pd(struct ib_pd *pd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3445) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3446) int ret = ib_dealloc_pd_user(pd, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3448) WARN_ONCE(ret, "Destroy of kernel PD shouldn't fail");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3451) enum rdma_create_ah_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3452) /* In a sleepable context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3453) RDMA_CREATE_AH_SLEEPABLE = BIT(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3454) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3456) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3457) * rdma_create_ah - Creates an address handle for the given address vector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3458) * @pd: The protection domain associated with the address handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3459) * @ah_attr: The attributes of the address vector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3460) * @flags: Create address handle flags (see enum rdma_create_ah_flags).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3461) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3462) * The address handle is used to reference a local or global destination
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3463) * in all UD QP post sends.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3464) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3465) struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3466) u32 flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3468) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3469) * rdma_create_user_ah - Creates an address handle for the given address vector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3470) * It resolves destination mac address for ah attribute of RoCE type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3471) * @pd: The protection domain associated with the address handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3472) * @ah_attr: The attributes of the address vector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3473) * @udata: pointer to user's input output buffer information need by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3474) * provider driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3475) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3476) * It returns 0 on success and returns appropriate error code on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3477) * The address handle is used to reference a local or global destination
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3478) * in all UD QP post sends.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3479) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3480) struct ib_ah *rdma_create_user_ah(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3481) struct rdma_ah_attr *ah_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3482) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3483) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3484) * ib_get_gids_from_rdma_hdr - Get sgid and dgid from GRH or IPv4 header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3485) * work completion.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3486) * @hdr: the L3 header to parse
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3487) * @net_type: type of header to parse
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3488) * @sgid: place to store source gid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3489) * @dgid: place to store destination gid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3490) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3491) int ib_get_gids_from_rdma_hdr(const union rdma_network_hdr *hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3492) enum rdma_network_type net_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3493) union ib_gid *sgid, union ib_gid *dgid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3495) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3496) * ib_get_rdma_header_version - Get the header version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3497) * @hdr: the L3 header to parse
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3498) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3499) int ib_get_rdma_header_version(const union rdma_network_hdr *hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3501) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3502) * ib_init_ah_attr_from_wc - Initializes address handle attributes from a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3503) * work completion.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3504) * @device: Device on which the received message arrived.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3505) * @port_num: Port on which the received message arrived.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3506) * @wc: Work completion associated with the received message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3507) * @grh: References the received global route header. This parameter is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3508) * ignored unless the work completion indicates that the GRH is valid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3509) * @ah_attr: Returned attributes that can be used when creating an address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3510) * handle for replying to the message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3511) * When ib_init_ah_attr_from_wc() returns success,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3512) * (a) for IB link layer it optionally contains a reference to SGID attribute
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3513) * when GRH is present for IB link layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3514) * (b) for RoCE link layer it contains a reference to SGID attribute.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3515) * User must invoke rdma_cleanup_ah_attr_gid_attr() to release reference to SGID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3516) * attributes which are initialized using ib_init_ah_attr_from_wc().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3517) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3518) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3519) int ib_init_ah_attr_from_wc(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3520) const struct ib_wc *wc, const struct ib_grh *grh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3521) struct rdma_ah_attr *ah_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3523) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3524) * ib_create_ah_from_wc - Creates an address handle associated with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3525) * sender of the specified work completion.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3526) * @pd: The protection domain associated with the address handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3527) * @wc: Work completion information associated with a received message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3528) * @grh: References the received global route header. This parameter is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3529) * ignored unless the work completion indicates that the GRH is valid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3530) * @port_num: The outbound port number to associate with the address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3531) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3532) * The address handle is used to reference a local or global destination
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3533) * in all UD QP post sends.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3534) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3535) struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, const struct ib_wc *wc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3536) const struct ib_grh *grh, u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3538) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3539) * rdma_modify_ah - Modifies the address vector associated with an address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3540) * handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3541) * @ah: The address handle to modify.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3542) * @ah_attr: The new address vector attributes to associate with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3543) * address handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3544) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3545) int rdma_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3547) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3548) * rdma_query_ah - Queries the address vector associated with an address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3549) * handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3550) * @ah: The address handle to query.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3551) * @ah_attr: The address vector attributes associated with the address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3552) * handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3553) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3554) int rdma_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3555)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3556) enum rdma_destroy_ah_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3557) /* In a sleepable context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3558) RDMA_DESTROY_AH_SLEEPABLE = BIT(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3559) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3561) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3562) * rdma_destroy_ah_user - Destroys an address handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3563) * @ah: The address handle to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3564) * @flags: Destroy address handle flags (see enum rdma_destroy_ah_flags).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3565) * @udata: Valid user data or NULL for kernel objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3566) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3567) int rdma_destroy_ah_user(struct ib_ah *ah, u32 flags, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3569) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3570) * rdma_destroy_ah - Destroys an kernel address handle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3571) * @ah: The address handle to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3572) * @flags: Destroy address handle flags (see enum rdma_destroy_ah_flags).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3573) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3574) * NOTE: for user ah use rdma_destroy_ah_user with valid udata!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3575) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3576) static inline void rdma_destroy_ah(struct ib_ah *ah, u32 flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3577) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3578) int ret = rdma_destroy_ah_user(ah, flags, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3580) WARN_ONCE(ret, "Destroy of kernel AH shouldn't fail");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3583) struct ib_srq *ib_create_srq_user(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3584) struct ib_srq_init_attr *srq_init_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3585) struct ib_usrq_object *uobject,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3586) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3587) static inline struct ib_srq *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3588) ib_create_srq(struct ib_pd *pd, struct ib_srq_init_attr *srq_init_attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3589) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3590) if (!pd->device->ops.create_srq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3591) return ERR_PTR(-EOPNOTSUPP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3593) return ib_create_srq_user(pd, srq_init_attr, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3594) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3596) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3597) * ib_modify_srq - Modifies the attributes for the specified SRQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3598) * @srq: The SRQ to modify.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3599) * @srq_attr: On input, specifies the SRQ attributes to modify. On output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3600) * the current values of selected SRQ attributes are returned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3601) * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3602) * are being modified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3603) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3604) * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3605) * IB_SRQ_LIMIT to set the SRQ's limit and request notification when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3606) * the number of receives queued drops below the limit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3607) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3608) int ib_modify_srq(struct ib_srq *srq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3609) struct ib_srq_attr *srq_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3610) enum ib_srq_attr_mask srq_attr_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3612) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3613) * ib_query_srq - Returns the attribute list and current values for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3614) * specified SRQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3615) * @srq: The SRQ to query.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3616) * @srq_attr: The attributes of the specified SRQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3617) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3618) int ib_query_srq(struct ib_srq *srq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3619) struct ib_srq_attr *srq_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3621) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3622) * ib_destroy_srq_user - Destroys the specified SRQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3623) * @srq: The SRQ to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3624) * @udata: Valid user data or NULL for kernel objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3625) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3626) int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3628) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3629) * ib_destroy_srq - Destroys the specified kernel SRQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3630) * @srq: The SRQ to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3631) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3632) * NOTE: for user srq use ib_destroy_srq_user with valid udata!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3633) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3634) static inline void ib_destroy_srq(struct ib_srq *srq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3635) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3636) int ret = ib_destroy_srq_user(srq, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3638) WARN_ONCE(ret, "Destroy of kernel SRQ shouldn't fail");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3639) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3641) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3642) * ib_post_srq_recv - Posts a list of work requests to the specified SRQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3643) * @srq: The SRQ to post the work request on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3644) * @recv_wr: A list of work requests to post on the receive queue.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3645) * @bad_recv_wr: On an immediate failure, this parameter will reference
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3646) * the work request that failed to be posted on the QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3647) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3648) static inline int ib_post_srq_recv(struct ib_srq *srq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3649) const struct ib_recv_wr *recv_wr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3650) const struct ib_recv_wr **bad_recv_wr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3651) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3652) const struct ib_recv_wr *dummy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3654) return srq->device->ops.post_srq_recv(srq, recv_wr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3655) bad_recv_wr ? : &dummy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3658) struct ib_qp *ib_create_qp(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3659) struct ib_qp_init_attr *qp_init_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3661) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3662) * ib_modify_qp_with_udata - Modifies the attributes for the specified QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3663) * @qp: The QP to modify.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3664) * @attr: On input, specifies the QP attributes to modify. On output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3665) * the current values of selected QP attributes are returned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3666) * @attr_mask: A bit-mask used to specify which attributes of the QP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3667) * are being modified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3668) * @udata: pointer to user's input output buffer information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3669) * are being modified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3670) * It returns 0 on success and returns appropriate error code on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3671) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3672) int ib_modify_qp_with_udata(struct ib_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3673) struct ib_qp_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3674) int attr_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3675) struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3677) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3678) * ib_modify_qp - Modifies the attributes for the specified QP and then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3679) * transitions the QP to the given state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3680) * @qp: The QP to modify.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3681) * @qp_attr: On input, specifies the QP attributes to modify. On output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3682) * the current values of selected QP attributes are returned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3683) * @qp_attr_mask: A bit-mask used to specify which attributes of the QP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3684) * are being modified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3685) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3686) int ib_modify_qp(struct ib_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3687) struct ib_qp_attr *qp_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3688) int qp_attr_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3690) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3691) * ib_query_qp - Returns the attribute list and current values for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3692) * specified QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3693) * @qp: The QP to query.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3694) * @qp_attr: The attributes of the specified QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3695) * @qp_attr_mask: A bit-mask used to select specific attributes to query.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3696) * @qp_init_attr: Additional attributes of the selected QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3697) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3698) * The qp_attr_mask may be used to limit the query to gathering only the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3699) * selected attributes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3700) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3701) int ib_query_qp(struct ib_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3702) struct ib_qp_attr *qp_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3703) int qp_attr_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3704) struct ib_qp_init_attr *qp_init_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3706) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3707) * ib_destroy_qp - Destroys the specified QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3708) * @qp: The QP to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3709) * @udata: Valid udata or NULL for kernel objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3710) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3711) int ib_destroy_qp_user(struct ib_qp *qp, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3713) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3714) * ib_destroy_qp - Destroys the specified kernel QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3715) * @qp: The QP to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3716) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3717) * NOTE: for user qp use ib_destroy_qp_user with valid udata!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3718) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3719) static inline int ib_destroy_qp(struct ib_qp *qp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3720) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3721) return ib_destroy_qp_user(qp, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3722) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3724) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3725) * ib_open_qp - Obtain a reference to an existing sharable QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3726) * @xrcd - XRC domain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3727) * @qp_open_attr: Attributes identifying the QP to open.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3728) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3729) * Returns a reference to a sharable QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3730) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3731) struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3732) struct ib_qp_open_attr *qp_open_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3734) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3735) * ib_close_qp - Release an external reference to a QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3736) * @qp: The QP handle to release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3737) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3738) * The opened QP handle is released by the caller. The underlying
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3739) * shared QP is not destroyed until all internal references are released.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3740) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3741) int ib_close_qp(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3743) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3744) * ib_post_send - Posts a list of work requests to the send queue of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3745) * the specified QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3746) * @qp: The QP to post the work request on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3747) * @send_wr: A list of work requests to post on the send queue.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3748) * @bad_send_wr: On an immediate failure, this parameter will reference
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3749) * the work request that failed to be posted on the QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3750) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3751) * While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3752) * error is returned, the QP state shall not be affected,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3753) * ib_post_send() will return an immediate error after queueing any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3754) * earlier work requests in the list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3755) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3756) static inline int ib_post_send(struct ib_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3757) const struct ib_send_wr *send_wr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3758) const struct ib_send_wr **bad_send_wr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3759) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3760) const struct ib_send_wr *dummy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3762) return qp->device->ops.post_send(qp, send_wr, bad_send_wr ? : &dummy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3765) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3766) * ib_post_recv - Posts a list of work requests to the receive queue of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3767) * the specified QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3768) * @qp: The QP to post the work request on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3769) * @recv_wr: A list of work requests to post on the receive queue.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3770) * @bad_recv_wr: On an immediate failure, this parameter will reference
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3771) * the work request that failed to be posted on the QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3772) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3773) static inline int ib_post_recv(struct ib_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3774) const struct ib_recv_wr *recv_wr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3775) const struct ib_recv_wr **bad_recv_wr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3776) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3777) const struct ib_recv_wr *dummy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3779) return qp->device->ops.post_recv(qp, recv_wr, bad_recv_wr ? : &dummy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3780) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3782) struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private, int nr_cqe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3783) int comp_vector, enum ib_poll_context poll_ctx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3784) const char *caller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3785) static inline struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3786) int nr_cqe, int comp_vector,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3787) enum ib_poll_context poll_ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3788) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3789) return __ib_alloc_cq(dev, private, nr_cqe, comp_vector, poll_ctx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3790) KBUILD_MODNAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3791) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3793) struct ib_cq *__ib_alloc_cq_any(struct ib_device *dev, void *private,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3794) int nr_cqe, enum ib_poll_context poll_ctx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3795) const char *caller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3797) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3798) * ib_alloc_cq_any: Allocate kernel CQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3799) * @dev: The IB device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3800) * @private: Private data attached to the CQE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3801) * @nr_cqe: Number of CQEs in the CQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3802) * @poll_ctx: Context used for polling the CQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3803) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3804) static inline struct ib_cq *ib_alloc_cq_any(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3805) void *private, int nr_cqe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3806) enum ib_poll_context poll_ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3807) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3808) return __ib_alloc_cq_any(dev, private, nr_cqe, poll_ctx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3809) KBUILD_MODNAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3810) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3811)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3812) void ib_free_cq(struct ib_cq *cq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3813) int ib_process_cq_direct(struct ib_cq *cq, int budget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3815) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3816) * ib_create_cq - Creates a CQ on the specified device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3817) * @device: The device on which to create the CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3818) * @comp_handler: A user-specified callback that is invoked when a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3819) * completion event occurs on the CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3820) * @event_handler: A user-specified callback that is invoked when an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3821) * asynchronous event not associated with a completion occurs on the CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3822) * @cq_context: Context associated with the CQ returned to the user via
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3823) * the associated completion and event handlers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3824) * @cq_attr: The attributes the CQ should be created upon.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3825) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3826) * Users can examine the cq structure to determine the actual CQ size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3827) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3828) struct ib_cq *__ib_create_cq(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3829) ib_comp_handler comp_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3830) void (*event_handler)(struct ib_event *, void *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3831) void *cq_context,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3832) const struct ib_cq_init_attr *cq_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3833) const char *caller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3834) #define ib_create_cq(device, cmp_hndlr, evt_hndlr, cq_ctxt, cq_attr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3835) __ib_create_cq((device), (cmp_hndlr), (evt_hndlr), (cq_ctxt), (cq_attr), KBUILD_MODNAME)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3837) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3838) * ib_resize_cq - Modifies the capacity of the CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3839) * @cq: The CQ to resize.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3840) * @cqe: The minimum size of the CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3841) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3842) * Users can examine the cq structure to determine the actual CQ size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3843) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3844) int ib_resize_cq(struct ib_cq *cq, int cqe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3846) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3847) * rdma_set_cq_moderation - Modifies moderation params of the CQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3848) * @cq: The CQ to modify.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3849) * @cq_count: number of CQEs that will trigger an event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3850) * @cq_period: max period of time in usec before triggering an event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3851) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3852) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3853) int rdma_set_cq_moderation(struct ib_cq *cq, u16 cq_count, u16 cq_period);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3855) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3856) * ib_destroy_cq_user - Destroys the specified CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3857) * @cq: The CQ to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3858) * @udata: Valid user data or NULL for kernel objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3859) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3860) int ib_destroy_cq_user(struct ib_cq *cq, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3862) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3863) * ib_destroy_cq - Destroys the specified kernel CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3864) * @cq: The CQ to destroy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3865) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3866) * NOTE: for user cq use ib_destroy_cq_user with valid udata!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3867) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3868) static inline void ib_destroy_cq(struct ib_cq *cq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3869) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3870) int ret = ib_destroy_cq_user(cq, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3872) WARN_ONCE(ret, "Destroy of kernel CQ shouldn't fail");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3873) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3875) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3876) * ib_poll_cq - poll a CQ for completion(s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3877) * @cq:the CQ being polled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3878) * @num_entries:maximum number of completions to return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3879) * @wc:array of at least @num_entries &struct ib_wc where completions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3880) * will be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3881) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3882) * Poll a CQ for (possibly multiple) completions. If the return value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3883) * is < 0, an error occurred. If the return value is >= 0, it is the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3884) * number of completions returned. If the return value is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3885) * non-negative and < num_entries, then the CQ was emptied.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3886) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3887) static inline int ib_poll_cq(struct ib_cq *cq, int num_entries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3888) struct ib_wc *wc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3889) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3890) return cq->device->ops.poll_cq(cq, num_entries, wc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3891) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3893) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3894) * ib_req_notify_cq - Request completion notification on a CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3895) * @cq: The CQ to generate an event for.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3896) * @flags:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3897) * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3898) * to request an event on the next solicited event or next work
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3899) * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3900) * may also be |ed in to request a hint about missed events, as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3901) * described below.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3902) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3903) * Return Value:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3904) * < 0 means an error occurred while requesting notification
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3905) * == 0 means notification was requested successfully, and if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3906) * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3907) * were missed and it is safe to wait for another event. In
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3908) * this case is it guaranteed that any work completions added
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3909) * to the CQ since the last CQ poll will trigger a completion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3910) * notification event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3911) * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3912) * in. It means that the consumer must poll the CQ again to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3913) * make sure it is empty to avoid missing an event because of a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3914) * race between requesting notification and an entry being
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3915) * added to the CQ. This return value means it is possible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3916) * (but not guaranteed) that a work completion has been added
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3917) * to the CQ since the last poll without triggering a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3918) * completion notification event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3919) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3920) static inline int ib_req_notify_cq(struct ib_cq *cq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3921) enum ib_cq_notify_flags flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3922) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3923) return cq->device->ops.req_notify_cq(cq, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3924) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3926) struct ib_cq *ib_cq_pool_get(struct ib_device *dev, unsigned int nr_cqe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3927) int comp_vector_hint,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3928) enum ib_poll_context poll_ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3930) void ib_cq_pool_put(struct ib_cq *cq, unsigned int nr_cqe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3932) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3933) * ib_req_ncomp_notif - Request completion notification when there are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3934) * at least the specified number of unreaped completions on the CQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3935) * @cq: The CQ to generate an event for.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3936) * @wc_cnt: The number of unreaped completions that should be on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3937) * CQ before an event is generated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3938) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3939) static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3940) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3941) return cq->device->ops.req_ncomp_notif ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3942) cq->device->ops.req_ncomp_notif(cq, wc_cnt) :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3943) -ENOSYS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3944) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3945)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3946) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3947) * Drivers that don't need a DMA mapping at the RDMA layer, set dma_device to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3948) * NULL. This causes the ib_dma* helpers to just stash the kernel virtual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3949) * address into the dma address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3950) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3951) static inline bool ib_uses_virt_dma(struct ib_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3952) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3953) return IS_ENABLED(CONFIG_INFINIBAND_VIRT_DMA) && !dev->dma_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3954) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3956) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3957) * ib_dma_mapping_error - check a DMA addr for error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3958) * @dev: The device for which the dma_addr was created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3959) * @dma_addr: The DMA address to check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3960) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3961) static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3962) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3963) if (ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3964) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3965) return dma_mapping_error(dev->dma_device, dma_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3966) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3968) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3969) * ib_dma_map_single - Map a kernel virtual address to DMA address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3970) * @dev: The device for which the dma_addr is to be created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3971) * @cpu_addr: The kernel virtual address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3972) * @size: The size of the region in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3973) * @direction: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3974) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3975) static inline u64 ib_dma_map_single(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3976) void *cpu_addr, size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3977) enum dma_data_direction direction)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3978) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3979) if (ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3980) return (uintptr_t)cpu_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3981) return dma_map_single(dev->dma_device, cpu_addr, size, direction);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3982) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3984) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3985) * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3986) * @dev: The device for which the DMA address was created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3987) * @addr: The DMA address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3988) * @size: The size of the region in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3989) * @direction: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3990) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3991) static inline void ib_dma_unmap_single(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3992) u64 addr, size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3993) enum dma_data_direction direction)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3994) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3995) if (!ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3996) dma_unmap_single(dev->dma_device, addr, size, direction);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3997) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3998)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3999) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4000) * ib_dma_map_page - Map a physical page to DMA address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4001) * @dev: The device for which the dma_addr is to be created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4002) * @page: The page to be mapped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4003) * @offset: The offset within the page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4004) * @size: The size of the region in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4005) * @direction: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4006) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4007) static inline u64 ib_dma_map_page(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4008) struct page *page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4009) unsigned long offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4010) size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4011) enum dma_data_direction direction)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4012) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4013) if (ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4014) return (uintptr_t)(page_address(page) + offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4015) return dma_map_page(dev->dma_device, page, offset, size, direction);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4016) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4017)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4018) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4019) * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4020) * @dev: The device for which the DMA address was created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4021) * @addr: The DMA address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4022) * @size: The size of the region in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4023) * @direction: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4024) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4025) static inline void ib_dma_unmap_page(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4026) u64 addr, size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4027) enum dma_data_direction direction)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4028) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4029) if (!ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4030) dma_unmap_page(dev->dma_device, addr, size, direction);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4031) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4033) int ib_dma_virt_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4034) static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4035) struct scatterlist *sg, int nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4036) enum dma_data_direction direction,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4037) unsigned long dma_attrs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4038) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4039) if (ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4040) return ib_dma_virt_map_sg(dev, sg, nents);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4041) return dma_map_sg_attrs(dev->dma_device, sg, nents, direction,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4042) dma_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4043) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4044)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4045) static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4046) struct scatterlist *sg, int nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4047) enum dma_data_direction direction,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4048) unsigned long dma_attrs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4049) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4050) if (!ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4051) dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4052) dma_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4053) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4054)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4055) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4056) * ib_dma_map_sg - Map a scatter/gather list to DMA addresses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4057) * @dev: The device for which the DMA addresses are to be created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4058) * @sg: The array of scatter/gather entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4059) * @nents: The number of scatter/gather entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4060) * @direction: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4061) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4062) static inline int ib_dma_map_sg(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4063) struct scatterlist *sg, int nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4064) enum dma_data_direction direction)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4065) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4066) return ib_dma_map_sg_attrs(dev, sg, nents, direction, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4067) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4069) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4070) * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4071) * @dev: The device for which the DMA addresses were created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4072) * @sg: The array of scatter/gather entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4073) * @nents: The number of scatter/gather entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4074) * @direction: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4075) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4076) static inline void ib_dma_unmap_sg(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4077) struct scatterlist *sg, int nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4078) enum dma_data_direction direction)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4079) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4080) ib_dma_unmap_sg_attrs(dev, sg, nents, direction, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4081) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4083) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4084) * ib_dma_max_seg_size - Return the size limit of a single DMA transfer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4085) * @dev: The device to query
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4086) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4087) * The returned value represents a size in bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4088) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4089) static inline unsigned int ib_dma_max_seg_size(struct ib_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4090) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4091) if (ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4092) return UINT_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4093) return dma_get_max_seg_size(dev->dma_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4094) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4095)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4096) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4097) * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4098) * @dev: The device for which the DMA address was created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4099) * @addr: The DMA address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4100) * @size: The size of the region in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4101) * @dir: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4102) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4103) static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4104) u64 addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4105) size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4106) enum dma_data_direction dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4108) if (!ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4109) dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4112) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4113) * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4114) * @dev: The device for which the DMA address was created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4115) * @addr: The DMA address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4116) * @size: The size of the region in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4117) * @dir: The direction of the DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4118) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4119) static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4120) u64 addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4121) size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4122) enum dma_data_direction dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4124) if (!ib_uses_virt_dma(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4125) dma_sync_single_for_device(dev->dma_device, addr, size, dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4128) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4129) * ib_dma_alloc_coherent - Allocate memory and map it for DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4130) * @dev: The device for which the DMA address is requested
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4131) * @size: The size of the region to allocate in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4132) * @dma_handle: A pointer for returning the DMA address of the region
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4133) * @flag: memory allocator flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4134) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4135) static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4136) size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4137) dma_addr_t *dma_handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4138) gfp_t flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4140) return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4143) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4144) * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4145) * @dev: The device for which the DMA addresses were allocated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4146) * @size: The size of the region
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4147) * @cpu_addr: the address returned by ib_dma_alloc_coherent()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4148) * @dma_handle: the DMA address returned by ib_dma_alloc_coherent()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4149) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4150) static inline void ib_dma_free_coherent(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4151) size_t size, void *cpu_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4152) dma_addr_t dma_handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4154) dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4157) /* ib_reg_user_mr - register a memory region for virtual addresses from kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4158) * space. This function should be called when 'current' is the owning MM.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4159) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4160) struct ib_mr *ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4161) u64 virt_addr, int mr_access_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4163) /* ib_advise_mr - give an advice about an address range in a memory region */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4164) int ib_advise_mr(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4165) u32 flags, struct ib_sge *sg_list, u32 num_sge);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4166) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4167) * ib_dereg_mr_user - Deregisters a memory region and removes it from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4168) * HCA translation table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4169) * @mr: The memory region to deregister.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4170) * @udata: Valid user data or NULL for kernel object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4171) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4172) * This function can fail, if the memory region has memory windows bound to it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4173) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4174) int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4176) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4177) * ib_dereg_mr - Deregisters a kernel memory region and removes it from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4178) * HCA translation table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4179) * @mr: The memory region to deregister.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4180) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4181) * This function can fail, if the memory region has memory windows bound to it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4182) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4183) * NOTE: for user mr use ib_dereg_mr_user with valid udata!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4184) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4185) static inline int ib_dereg_mr(struct ib_mr *mr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4187) return ib_dereg_mr_user(mr, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4190) struct ib_mr *ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4191) u32 max_num_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4193) struct ib_mr *ib_alloc_mr_integrity(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4194) u32 max_num_data_sg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4195) u32 max_num_meta_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4197) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4198) * ib_update_fast_reg_key - updates the key portion of the fast_reg MR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4199) * R_Key and L_Key.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4200) * @mr - struct ib_mr pointer to be updated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4201) * @newkey - new key to be used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4202) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4203) static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4205) mr->lkey = (mr->lkey & 0xffffff00) | newkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4206) mr->rkey = (mr->rkey & 0xffffff00) | newkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4209) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4210) * ib_inc_rkey - increments the key portion of the given rkey. Can be used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4211) * for calculating a new rkey for type 2 memory windows.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4212) * @rkey - the rkey to increment.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4213) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4214) static inline u32 ib_inc_rkey(u32 rkey)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4216) const u32 mask = 0x000000ff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4217) return ((rkey + 1) & mask) | (rkey & ~mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4220) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4221) * ib_attach_mcast - Attaches the specified QP to a multicast group.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4222) * @qp: QP to attach to the multicast group. The QP must be type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4223) * IB_QPT_UD.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4224) * @gid: Multicast group GID.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4225) * @lid: Multicast group LID in host byte order.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4226) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4227) * In order to send and receive multicast packets, subnet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4228) * administration must have created the multicast group and configured
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4229) * the fabric appropriately. The port associated with the specified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4230) * QP must also be a member of the multicast group.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4231) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4232) int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4234) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4235) * ib_detach_mcast - Detaches the specified QP from a multicast group.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4236) * @qp: QP to detach from the multicast group.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4237) * @gid: Multicast group GID.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4238) * @lid: Multicast group LID in host byte order.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4239) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4240) int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4242) struct ib_xrcd *ib_alloc_xrcd_user(struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4243) struct inode *inode, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4244) int ib_dealloc_xrcd_user(struct ib_xrcd *xrcd, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4246) static inline int ib_check_mr_access(int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4248) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4249) * Local write permission is required if remote write or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4250) * remote atomic permission is also requested.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4251) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4252) if (flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4253) !(flags & IB_ACCESS_LOCAL_WRITE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4254) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4256) if (flags & ~IB_ACCESS_SUPPORTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4257) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4259) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4262) static inline bool ib_access_writable(int access_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4263) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4264) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4265) * We have writable memory backing the MR if any of the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4266) * access flags are set. "Local write" and "remote write" obviously
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4267) * require write access. "Remote atomic" can do things like fetch and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4268) * add, which will modify memory, and "MW bind" can change permissions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4269) * by binding a window.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4270) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4271) return access_flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4272) (IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4273) IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_MW_BIND);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4276) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4277) * ib_check_mr_status: lightweight check of MR status.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4278) * This routine may provide status checks on a selected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4279) * ib_mr. first use is for signature status check.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4280) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4281) * @mr: A memory region.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4282) * @check_mask: Bitmask of which checks to perform from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4283) * ib_mr_status_check enumeration.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4284) * @mr_status: The container of relevant status checks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4285) * failed checks will be indicated in the status bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4286) * and the relevant info shall be in the error item.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4287) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4288) int ib_check_mr_status(struct ib_mr *mr, u32 check_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4289) struct ib_mr_status *mr_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4291) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4292) * ib_device_try_get: Hold a registration lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4293) * device: The device to lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4294) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4295) * A device under an active registration lock cannot become unregistered. It
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4296) * is only possible to obtain a registration lock on a device that is fully
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4297) * registered, otherwise this function returns false.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4298) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4299) * The registration lock is only necessary for actions which require the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4300) * device to still be registered. Uses that only require the device pointer to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4301) * be valid should use get_device(&ibdev->dev) to hold the memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4302) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4303) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4304) static inline bool ib_device_try_get(struct ib_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4305) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4306) return refcount_inc_not_zero(&dev->refcount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4309) void ib_device_put(struct ib_device *device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4310) struct ib_device *ib_device_get_by_netdev(struct net_device *ndev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4311) enum rdma_driver_id driver_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4312) struct ib_device *ib_device_get_by_name(const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4313) enum rdma_driver_id driver_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4314) struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4315) u16 pkey, const union ib_gid *gid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4316) const struct sockaddr *addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4317) int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4318) unsigned int port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4319) struct net_device *ib_device_netdev(struct ib_device *dev, u8 port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4321) struct ib_wq *ib_create_wq(struct ib_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4322) struct ib_wq_init_attr *init_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4323) int ib_destroy_wq_user(struct ib_wq *wq, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4324) int ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4325) u32 wq_attr_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4327) int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4328) unsigned int *sg_offset, unsigned int page_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4329) int ib_map_mr_sg_pi(struct ib_mr *mr, struct scatterlist *data_sg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4330) int data_sg_nents, unsigned int *data_sg_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4331) struct scatterlist *meta_sg, int meta_sg_nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4332) unsigned int *meta_sg_offset, unsigned int page_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4334) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4335) ib_map_mr_sg_zbva(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4336) unsigned int *sg_offset, unsigned int page_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4338) int n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4340) n = ib_map_mr_sg(mr, sg, sg_nents, sg_offset, page_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4341) mr->iova = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4343) return n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4346) int ib_sg_to_pages(struct ib_mr *mr, struct scatterlist *sgl, int sg_nents,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4347) unsigned int *sg_offset, int (*set_page)(struct ib_mr *, u64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4349) void ib_drain_rq(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4350) void ib_drain_sq(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4351) void ib_drain_qp(struct ib_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4353) int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u16 *speed, u8 *width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4355) static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4356) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4357) if (attr->type == RDMA_AH_ATTR_TYPE_ROCE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4358) return attr->roce.dmac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4359) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4362) static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u32 dlid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4363) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4364) if (attr->type == RDMA_AH_ATTR_TYPE_IB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4365) attr->ib.dlid = (u16)dlid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4366) else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4367) attr->opa.dlid = dlid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4370) static inline u32 rdma_ah_get_dlid(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4371) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4372) if (attr->type == RDMA_AH_ATTR_TYPE_IB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4373) return attr->ib.dlid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4374) else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4375) return attr->opa.dlid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4376) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4379) static inline void rdma_ah_set_sl(struct rdma_ah_attr *attr, u8 sl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4381) attr->sl = sl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4384) static inline u8 rdma_ah_get_sl(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4385) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4386) return attr->sl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4389) static inline void rdma_ah_set_path_bits(struct rdma_ah_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4390) u8 src_path_bits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4391) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4392) if (attr->type == RDMA_AH_ATTR_TYPE_IB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4393) attr->ib.src_path_bits = src_path_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4394) else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4395) attr->opa.src_path_bits = src_path_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4398) static inline u8 rdma_ah_get_path_bits(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4399) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4400) if (attr->type == RDMA_AH_ATTR_TYPE_IB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4401) return attr->ib.src_path_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4402) else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4403) return attr->opa.src_path_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4404) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4407) static inline void rdma_ah_set_make_grd(struct rdma_ah_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4408) bool make_grd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4409) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4410) if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4411) attr->opa.make_grd = make_grd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4414) static inline bool rdma_ah_get_make_grd(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4415) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4416) if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4417) return attr->opa.make_grd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4418) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4421) static inline void rdma_ah_set_port_num(struct rdma_ah_attr *attr, u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4422) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4423) attr->port_num = port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4426) static inline u8 rdma_ah_get_port_num(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4427) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4428) return attr->port_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4429) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4431) static inline void rdma_ah_set_static_rate(struct rdma_ah_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4432) u8 static_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4434) attr->static_rate = static_rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4437) static inline u8 rdma_ah_get_static_rate(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4438) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4439) return attr->static_rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4442) static inline void rdma_ah_set_ah_flags(struct rdma_ah_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4443) enum ib_ah_flags flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4444) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4445) attr->ah_flags = flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4448) static inline enum ib_ah_flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4449) rdma_ah_get_ah_flags(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4451) return attr->ah_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4454) static inline const struct ib_global_route
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4455) *rdma_ah_read_grh(const struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4456) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4457) return &attr->grh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4460) /*To retrieve and modify the grh */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4461) static inline struct ib_global_route
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4462) *rdma_ah_retrieve_grh(struct rdma_ah_attr *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4463) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4464) return &attr->grh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4467) static inline void rdma_ah_set_dgid_raw(struct rdma_ah_attr *attr, void *dgid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4469) struct ib_global_route *grh = rdma_ah_retrieve_grh(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4471) memcpy(grh->dgid.raw, dgid, sizeof(grh->dgid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4474) static inline void rdma_ah_set_subnet_prefix(struct rdma_ah_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4475) __be64 prefix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4476) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4477) struct ib_global_route *grh = rdma_ah_retrieve_grh(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4479) grh->dgid.global.subnet_prefix = prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4480) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4482) static inline void rdma_ah_set_interface_id(struct rdma_ah_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4483) __be64 if_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4484) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4485) struct ib_global_route *grh = rdma_ah_retrieve_grh(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4487) grh->dgid.global.interface_id = if_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4490) static inline void rdma_ah_set_grh(struct rdma_ah_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4491) union ib_gid *dgid, u32 flow_label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4492) u8 sgid_index, u8 hop_limit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4493) u8 traffic_class)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4494) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4495) struct ib_global_route *grh = rdma_ah_retrieve_grh(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4497) attr->ah_flags = IB_AH_GRH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4498) if (dgid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4499) grh->dgid = *dgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4500) grh->flow_label = flow_label;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4501) grh->sgid_index = sgid_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4502) grh->hop_limit = hop_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4503) grh->traffic_class = traffic_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4504) grh->sgid_attr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4507) void rdma_destroy_ah_attr(struct rdma_ah_attr *ah_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4508) void rdma_move_grh_sgid_attr(struct rdma_ah_attr *attr, union ib_gid *dgid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4509) u32 flow_label, u8 hop_limit, u8 traffic_class,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4510) const struct ib_gid_attr *sgid_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4511) void rdma_copy_ah_attr(struct rdma_ah_attr *dest,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4512) const struct rdma_ah_attr *src);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4513) void rdma_replace_ah_attr(struct rdma_ah_attr *old,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4514) const struct rdma_ah_attr *new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4515) void rdma_move_ah_attr(struct rdma_ah_attr *dest, struct rdma_ah_attr *src);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4517) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4518) * rdma_ah_find_type - Return address handle type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4519) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4520) * @dev: Device to be checked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4521) * @port_num: Port number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4522) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4523) static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4524) u8 port_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4525) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4526) if (rdma_protocol_roce(dev, port_num))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4527) return RDMA_AH_ATTR_TYPE_ROCE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4528) if (rdma_protocol_ib(dev, port_num)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4529) if (rdma_cap_opa_ah(dev, port_num))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4530) return RDMA_AH_ATTR_TYPE_OPA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4531) return RDMA_AH_ATTR_TYPE_IB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4534) return RDMA_AH_ATTR_TYPE_UNDEFINED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4535) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4537) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4538) * ib_lid_cpu16 - Return lid in 16bit CPU encoding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4539) * In the current implementation the only way to get
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4540) * get the 32bit lid is from other sources for OPA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4541) * For IB, lids will always be 16bits so cast the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4542) * value accordingly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4543) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4544) * @lid: A 32bit LID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4545) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4546) static inline u16 ib_lid_cpu16(u32 lid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4547) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4548) WARN_ON_ONCE(lid & 0xFFFF0000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4549) return (u16)lid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4552) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4553) * ib_lid_be16 - Return lid in 16bit BE encoding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4554) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4555) * @lid: A 32bit LID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4556) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4557) static inline __be16 ib_lid_be16(u32 lid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4558) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4559) WARN_ON_ONCE(lid & 0xFFFF0000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4560) return cpu_to_be16((u16)lid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4561) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4563) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4564) * ib_get_vector_affinity - Get the affinity mappings of a given completion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4565) * vector
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4566) * @device: the rdma device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4567) * @comp_vector: index of completion vector
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4568) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4569) * Returns NULL on failure, otherwise a corresponding cpu map of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4570) * completion vector (returns all-cpus map if the device driver doesn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4571) * implement get_vector_affinity).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4572) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4573) static inline const struct cpumask *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4574) ib_get_vector_affinity(struct ib_device *device, int comp_vector)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4575) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4576) if (comp_vector < 0 || comp_vector >= device->num_comp_vectors ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4577) !device->ops.get_vector_affinity)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4578) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4580) return device->ops.get_vector_affinity(device, comp_vector);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4582) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4584) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4585) * rdma_roce_rescan_device - Rescan all of the network devices in the system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4586) * and add their gids, as needed, to the relevant RoCE devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4587) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4588) * @device: the rdma device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4589) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4590) void rdma_roce_rescan_device(struct ib_device *ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4592) struct ib_ucontext *ib_uverbs_get_ucontext_file(struct ib_uverbs_file *ufile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4594) int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4596) struct net_device *rdma_alloc_netdev(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4597) enum rdma_netdev_t type, const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4598) unsigned char name_assign_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4599) void (*setup)(struct net_device *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4601) int rdma_init_netdev(struct ib_device *device, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4602) enum rdma_netdev_t type, const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4603) unsigned char name_assign_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4604) void (*setup)(struct net_device *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4605) struct net_device *netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4607) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4608) * rdma_set_device_sysfs_group - Set device attributes group to have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4609) * driver specific sysfs entries at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4610) * for infiniband class.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4611) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4612) * @device: device pointer for which attributes to be created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4613) * @group: Pointer to group which should be added when device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4614) * is registered with sysfs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4615) * rdma_set_device_sysfs_group() allows existing drivers to expose one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4616) * group per device to have sysfs attributes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4617) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4618) * NOTE: New drivers should not make use of this API; instead new device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4619) * parameter should be exposed via netlink command. This API and mechanism
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4620) * exist only for existing drivers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4621) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4622) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4623) rdma_set_device_sysfs_group(struct ib_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4624) const struct attribute_group *group)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4625) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4626) dev->groups[1] = group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4629) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4630) * rdma_device_to_ibdev - Get ib_device pointer from device pointer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4631) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4632) * @device: device pointer for which ib_device pointer to retrieve
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4633) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4634) * rdma_device_to_ibdev() retrieves ib_device pointer from device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4635) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4636) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4637) static inline struct ib_device *rdma_device_to_ibdev(struct device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4638) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4639) struct ib_core_device *coredev =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4640) container_of(device, struct ib_core_device, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4642) return coredev->owner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4643) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4645) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4646) * ibdev_to_node - return the NUMA node for a given ib_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4647) * @dev: device to get the NUMA node for.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4648) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4649) static inline int ibdev_to_node(struct ib_device *ibdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4650) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4651) struct device *parent = ibdev->dev.parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4652)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4653) if (!parent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4654) return NUMA_NO_NODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4655) return dev_to_node(parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4658) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4659) * rdma_device_to_drv_device - Helper macro to reach back to driver's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4660) * ib_device holder structure from device pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4661) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4662) * NOTE: New drivers should not make use of this API; This API is only for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4663) * existing drivers who have exposed sysfs entries using
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4664) * rdma_set_device_sysfs_group().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4665) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4666) #define rdma_device_to_drv_device(dev, drv_dev_struct, ibdev_member) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4667) container_of(rdma_device_to_ibdev(dev), drv_dev_struct, ibdev_member)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4669) bool rdma_dev_access_netns(const struct ib_device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4670) const struct net *net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4672) #define IB_ROCE_UDP_ENCAP_VALID_PORT_MIN (0xC000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4673) #define IB_ROCE_UDP_ENCAP_VALID_PORT_MAX (0xFFFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4674) #define IB_GRH_FLOWLABEL_MASK (0x000FFFFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4676) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4677) * rdma_flow_label_to_udp_sport - generate a RoCE v2 UDP src port value based
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4678) * on the flow_label
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4679) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4680) * This function will convert the 20 bit flow_label input to a valid RoCE v2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4681) * UDP src port 14 bit value. All RoCE V2 drivers should use this same
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4682) * convention.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4683) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4684) static inline u16 rdma_flow_label_to_udp_sport(u32 fl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4685) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4686) u32 fl_low = fl & 0x03fff, fl_high = fl & 0xFC000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4688) fl_low ^= fl_high >> 14;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4689) return (u16)(fl_low | IB_ROCE_UDP_ENCAP_VALID_PORT_MIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4690) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4692) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4693) * rdma_calc_flow_label - generate a RDMA symmetric flow label value based on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4694) * local and remote qpn values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4695) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4696) * This function folded the multiplication results of two qpns, 24 bit each,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4697) * fields, and converts it to a 20 bit results.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4698) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4699) * This function will create symmetric flow_label value based on the local
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4700) * and remote qpn values. this will allow both the requester and responder
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4701) * to calculate the same flow_label for a given connection.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4702) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4703) * This helper function should be used by driver in case the upper layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4704) * provide a zero flow_label value. This is to improve entropy of RDMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4705) * traffic in the network.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4706) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4707) static inline u32 rdma_calc_flow_label(u32 lqpn, u32 rqpn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4708) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4709) u64 v = (u64)lqpn * rqpn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4711) v ^= v >> 20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4712) v ^= v >> 40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4714) return (u32)(v & IB_GRH_FLOWLABEL_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4715) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4716) #endif /* IB_VERBS_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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