^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright(c) 2016 - 2019 Intel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef DEF_RDMA_VT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define DEF_RDMA_VT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Structure that low level drivers will populate in order to register with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * rdmavt layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <rdma/ib_verbs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <rdma/ib_mad.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <rdma/rdmavt_mr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define RVT_MAX_PKEY_VALUES 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define RVT_MAX_TRAP_LEN 100 /* Limit pending trap list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define RVT_MAX_TRAP_LISTS 5 /*((IB_NOTICE_TYPE_INFO & 0x0F) + 1)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define RVT_TRAP_TIMEOUT 4096 /* 4.096 usec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct trap_list {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) u32 list_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct rvt_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct rvt_qpn_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct rvt_ibport {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct rvt_qp __rcu *qp[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct ib_mad_agent *send_agent; /* agent for SMI (traps) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct rb_root mcast_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) spinlock_t lock; /* protect changes in this struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /* non-zero when timer is set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) unsigned long mkey_lease_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) unsigned long trap_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) __be64 gid_prefix; /* in network order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) __be64 mkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u64 tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) u32 port_cap_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) u16 port_cap3_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u32 pma_sample_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) u32 pma_sample_interval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) __be16 pma_counter_select[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) u16 pma_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) u16 mkey_lease_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) u32 sm_lid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) u8 sm_sl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) u8 mkeyprot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) u8 subnet_timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) u8 vl_high_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * Driver is expected to keep these up to date. These
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * counters are informational only and not required to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * completely accurate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) u64 n_rc_resends;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) u64 n_seq_naks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) u64 n_rdma_seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) u64 n_rnr_naks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) u64 n_other_naks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) u64 n_loop_pkts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u64 n_pkt_drops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) u64 n_vl15_dropped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) u64 n_rc_timeouts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) u64 n_dmawait;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) u64 n_unaligned;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) u64 n_rc_dupreq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) u64 n_rc_seqnak;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) u64 n_rc_crwaits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) u16 pkey_violations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) u16 qkey_violations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) u16 mkey_violations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* Hot-path per CPU counters to avoid cacheline trading to update */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) u64 z_rc_acks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) u64 z_rc_qacks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) u64 z_rc_delayed_comp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) u64 __percpu *rc_acks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) u64 __percpu *rc_qacks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) u64 __percpu *rc_delayed_comp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) void *priv; /* driver private data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * The pkey table is allocated and maintained by the driver. Drivers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * need to have access to this before registering with rdmav. However
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * rdmavt will need access to it so drivers need to proviee this during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * the attach port API call.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) u16 *pkey_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct rvt_ah *sm_ah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * Keep a list of traps that have not been repressed. They will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * resent based on trap_timer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) struct trap_list trap_lists[RVT_MAX_TRAP_LISTS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct timer_list trap_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define RVT_CQN_MAX 16 /* maximum length of cq name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define RVT_SGE_COPY_MEMCPY 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define RVT_SGE_COPY_CACHELESS 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define RVT_SGE_COPY_ADAPTIVE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * Things that are driver specific, module parameters in hfi1 and qib
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct rvt_driver_params {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct ib_device_attr props;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * Anything driver specific that is not covered by props
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * For instance special module parameters. Goes here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) unsigned int lkey_table_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) unsigned int qp_table_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) unsigned int sge_copy_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) unsigned int wss_threshold;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) unsigned int wss_clean_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) int qpn_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) int qpn_inc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) int qpn_res_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int qpn_res_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int nports;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int npkeys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) int node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) int psn_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) int psn_shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) int psn_modify_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) u32 core_cap_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) u32 max_mad_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) u8 qos_shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) u8 max_rdma_atomic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) u8 extra_rdma_atomic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) u8 reserved_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /* User context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) struct rvt_ucontext {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct ib_ucontext ibucontext;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* Protection domain */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct rvt_pd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct ib_pd ibpd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) bool user;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) /* Address handle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct rvt_ah {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct ib_ah ibah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct rdma_ah_attr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) u8 vl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) u8 log_pmtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * This structure is used by rvt_mmap() to validate an offset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * when an mmap() request is made. The vm_area_struct then uses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * this as its vm_private_data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct rvt_mmap_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct list_head pending_mmaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) struct ib_ucontext *context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) void *obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) __u64 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct kref ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) u32 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) /* memory working set size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) struct rvt_wss {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) unsigned long *entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) atomic_t total_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) atomic_t clean_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) atomic_t clean_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) int threshold;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) int num_entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) long pages_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) unsigned int clean_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) struct rvt_dev_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct rvt_swqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) struct rvt_driver_provided {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * Which functions are required depends on which verbs rdmavt is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * providing and which verbs the driver is overriding. See
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * check_support() for details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) /* hot path calldowns in a single cacheline */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * Give the driver a notice that there is send work to do. It is up to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * the driver to generally push the packets out, this just queues the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * work with the driver. There are two variants here. The no_lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * version requires the s_lock not to be held. The other assumes the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * s_lock is held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) bool (*schedule_send)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) bool (*schedule_send_no_lock)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) * Driver specific work request setup and checking.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) * This function is allowed to perform any setup, checks, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * adjustments required to the SWQE in order to be usable by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) * underlying protocols. This includes private data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) * allocations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int (*setup_wqe)(struct rvt_qp *qp, struct rvt_swqe *wqe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) bool *call_send);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * Sometimes rdmavt needs to kick the driver's send progress. That is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) * done by this call back.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) void (*do_send)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) * Returns a pointer to the undelying hardware's PCI device. This is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * used to display information as to what hardware is being referenced
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) * in an output message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct pci_dev * (*get_pci_dev)(struct rvt_dev_info *rdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) * Allocate a private queue pair data structure for driver specific
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * information which is opaque to rdmavt. Errors are returned via
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) * ERR_PTR(err). The driver is free to return NULL or a valid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) * pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) void * (*qp_priv_alloc)(struct rvt_dev_info *rdi, struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * Init a struture allocated with qp_priv_alloc(). This should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) * called after all qp fields have been initialized in rdmavt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) int (*qp_priv_init)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) struct ib_qp_init_attr *init_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * Free the driver's private qp structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) void (*qp_priv_free)(struct rvt_dev_info *rdi, struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * Inform the driver the particular qp in quesiton has been reset so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) * that it can clean up anything it needs to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) void (*notify_qp_reset)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * Get a path mtu from the driver based on qp attributes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) int (*get_pmtu_from_attr)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct ib_qp_attr *attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * Notify driver that it needs to flush any outstanding IO requests that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * are waiting on a qp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) void (*flush_qp_waiters)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * Notify driver to stop its queue of sending packets. Nothing else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * should be posted to the queue pair after this has been called.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) void (*stop_send_queue)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * Have the drivr drain any in progress operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) void (*quiesce_qp)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * Inform the driver a qp has went to error state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) void (*notify_error_qp)(struct rvt_qp *qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * Get an MTU for a qp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) u32 (*mtu_from_qp)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) u32 pmtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * Convert an mtu to a path mtu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) int (*mtu_to_path_mtu)(u32 mtu);
^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) * Get the guid of a port in big endian byte order
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) int (*get_guid_be)(struct rvt_dev_info *rdi, struct rvt_ibport *rvp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) int guid_index, __be64 *guid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * Query driver for the state of the port.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) int (*query_port_state)(struct rvt_dev_info *rdi, u8 port_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct ib_port_attr *props);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) * Tell driver to shutdown a port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) int (*shut_down_port)(struct rvt_dev_info *rdi, u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) /* Tell driver to send a trap for changed port capabilities */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) void (*cap_mask_chg)(struct rvt_dev_info *rdi, u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * The following functions can be safely ignored completely. Any use of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * these is checked for NULL before blindly calling. Rdmavt should also
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * be functional if drivers omit these.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) /* Called to inform the driver that all qps should now be freed. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) unsigned (*free_all_qps)(struct rvt_dev_info *rdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* Driver specific AH validation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) int (*check_ah)(struct ib_device *, struct rdma_ah_attr *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) /* Inform the driver a new AH has been created */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) void (*notify_new_ah)(struct ib_device *, struct rdma_ah_attr *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct rvt_ah *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) /* Let the driver pick the next queue pair number*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) int (*alloc_qpn)(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) enum ib_qp_type type, u8 port_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /* Determine if its safe or allowed to modify the qp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) int (*check_modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) int attr_mask, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) /* Driver specific QP modification/notification-of */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) void (*modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) int attr_mask, struct ib_udata *udata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) /* Notify driver a mad agent has been created */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) void (*notify_create_mad_agent)(struct rvt_dev_info *rdi, int port_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) /* Notify driver a mad agent has been removed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) void (*notify_free_mad_agent)(struct rvt_dev_info *rdi, int port_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) /* Notify driver to restart rc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) void (*notify_restart_rc)(struct rvt_qp *qp, u32 psn, int wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /* Get and return CPU to pin CQ processing thread */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) int (*comp_vect_cpu_lookup)(struct rvt_dev_info *rdi, int comp_vect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct rvt_dev_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct ib_device ibdev; /* Keep this first. Nothing above here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * Prior to calling for registration the driver will be responsible for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * allocating space for this structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) * The driver will also be responsible for filling in certain members of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * dparms.props. The driver needs to fill in dparms exactly as it would
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) * want values reported to a ULP. This will be returned to the caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) * in rdmavt's device. The driver should also therefore refrain from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) * modifying this directly after registration with rdmavt.
^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) /* Driver specific properties */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct rvt_driver_params dparms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) /* post send table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) const struct rvt_operation_params *post_parms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) /* opcode translation table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) const enum ib_wc_opcode *wc_opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) /* Driver specific helper functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) struct rvt_driver_provided driver_f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) struct rvt_mregion __rcu *dma_mr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct rvt_lkey_table lkey_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) /* Internal use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) int n_pds_allocated;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) spinlock_t n_pds_lock; /* Protect pd allocated count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) int n_ahs_allocated;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) spinlock_t n_ahs_lock; /* Protect ah allocated count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) u32 n_srqs_allocated;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) spinlock_t n_srqs_lock; /* Protect srqs allocated count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) struct rvt_ibport **ports;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) /* QP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) struct rvt_qp_ibdev *qp_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) u32 n_qps_allocated; /* number of QPs allocated for device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) u32 n_rc_qps; /* number of RC QPs allocated for device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) u32 busy_jiffies; /* timeout scaling based on RC QP count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) spinlock_t n_qps_lock; /* protect qps, rc qps and busy jiffy counts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /* memory maps */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) struct list_head pending_mmaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) spinlock_t mmap_offset_lock; /* protect mmap_offset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) u32 mmap_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) spinlock_t pending_lock; /* protect pending mmap list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) /* CQ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) u32 n_cqs_allocated; /* number of CQs allocated for device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) spinlock_t n_cqs_lock; /* protect count of in use cqs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) /* Multicast */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) u32 n_mcast_grps_allocated; /* number of mcast groups allocated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) spinlock_t n_mcast_grps_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) /* Memory Working Set Size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) struct rvt_wss *wss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) * rvt_set_ibdev_name - Craft an IB device name from client info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) * @rdi: pointer to the client rvt_dev_info structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) * @name: client specific name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) * @unit: client specific unit number.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) static inline void rvt_set_ibdev_name(struct rvt_dev_info *rdi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) const char *fmt, const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) const int unit)
^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) * FIXME: rvt and its users want to touch the ibdev before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * registration and have things like the name work. We don't have the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * infrastructure in the core to support this directly today, hack it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * to work by setting the name manually here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) dev_set_name(&rdi->ibdev.dev, fmt, name, unit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) strlcpy(rdi->ibdev.name, dev_name(&rdi->ibdev.dev), IB_DEVICE_NAME_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) * rvt_get_ibdev_name - return the IB name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) * @rdi: rdmavt device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) * Return the registered name of the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) static inline const char *rvt_get_ibdev_name(const struct rvt_dev_info *rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return dev_name(&rdi->ibdev.dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) static inline struct rvt_pd *ibpd_to_rvtpd(struct ib_pd *ibpd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return container_of(ibpd, struct rvt_pd, ibpd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static inline struct rvt_ah *ibah_to_rvtah(struct ib_ah *ibah)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) return container_of(ibah, struct rvt_ah, ibah);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) static inline struct rvt_dev_info *ib_to_rvt(struct ib_device *ibdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) return container_of(ibdev, struct rvt_dev_info, ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) static inline unsigned rvt_get_npkeys(struct rvt_dev_info *rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * All ports have same number of pkeys.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) return rdi->dparms.npkeys;
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) * Return the max atomic suitable for determining
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) * the size of the ack ring buffer in a QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) static inline unsigned int rvt_max_atomic(struct rvt_dev_info *rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) return rdi->dparms.max_rdma_atomic +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) rdi->dparms.extra_rdma_atomic + 1;
^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) static inline unsigned int rvt_size_atomic(struct rvt_dev_info *rdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) return rdi->dparms.max_rdma_atomic +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) rdi->dparms.extra_rdma_atomic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) * Return the indexed PKEY from the port PKEY table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) static inline u16 rvt_get_pkey(struct rvt_dev_info *rdi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) int port_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) unsigned index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) if (index >= rvt_get_npkeys(rdi))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) return rdi->ports[port_index]->pkey_table[index];
^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) struct rvt_dev_info *rvt_alloc_device(size_t size, int nports);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) void rvt_dealloc_device(struct rvt_dev_info *rdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) int rvt_register_device(struct rvt_dev_info *rvd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) void rvt_unregister_device(struct rvt_dev_info *rvd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) int rvt_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) int rvt_init_port(struct rvt_dev_info *rdi, struct rvt_ibport *port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) int port_index, u16 *pkey_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) int rvt_fast_reg_mr(struct rvt_qp *qp, struct ib_mr *ibmr, u32 key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) int access);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) int rvt_invalidate_rkey(struct rvt_qp *qp, u32 rkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) u32 len, u64 vaddr, u32 rkey, int acc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) struct rvt_sge *isge, struct rvt_sge *last_sge,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) struct ib_sge *sge, int acc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct rvt_mcast *rvt_mcast_find(struct rvt_ibport *ibp, union ib_gid *mgid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) u16 lid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) #endif /* DEF_RDMA_VT_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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