^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This software is available to you under a choice of one of two
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * licenses. You may choose to be licensed under the terms of the GNU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * General Public License (GPL) Version 2, available from the file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * COPYING in the main directory of this source tree, or the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * OpenIB.org BSD license below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Redistribution and use in source and binary forms, with or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * without modification, are permitted provided that the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * conditions are met:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * - Redistributions of source code must retain the above
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * copyright notice, this list of conditions and the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * disclaimer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * - Redistributions in binary form must reproduce the above
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * copyright notice, this list of conditions and the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * disclaimer in the documentation and/or other materials
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * provided with the distribution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #ifndef _IPOIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define _IPOIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include <linux/kref.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #include <linux/if_infiniband.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include <net/neighbour.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <net/sch_generic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #include <linux/atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #include <rdma/ib_verbs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #include <rdma/ib_pack.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #include <rdma/ib_sa.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /* constants */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) enum ipoib_flush_level {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) IPOIB_FLUSH_LIGHT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) IPOIB_FLUSH_NORMAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) IPOIB_FLUSH_HEAVY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) IPOIB_ENCAP_LEN = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) IPOIB_PSEUDO_LEN = 20,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) IPOIB_RX_RING_SIZE = 256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) IPOIB_TX_RING_SIZE = 128,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) IPOIB_MAX_QUEUE_SIZE = 8192,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) IPOIB_MIN_QUEUE_SIZE = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) IPOIB_CM_MAX_CONN_QP = 4096,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) IPOIB_NUM_WC = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) IPOIB_MAX_PATH_REC_QUEUE = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) IPOIB_MAX_MCAST_QUEUE = 64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) IPOIB_FLAG_OPER_UP = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) IPOIB_FLAG_INITIALIZED = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) IPOIB_FLAG_ADMIN_UP = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) IPOIB_PKEY_ASSIGNED = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) IPOIB_FLAG_SUBINTERFACE = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) IPOIB_STOP_REAPER = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) IPOIB_FLAG_ADMIN_CM = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) IPOIB_FLAG_UMCAST = 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) IPOIB_NEIGH_TBL_FLUSH = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) IPOIB_FLAG_DEV_ADDR_SET = 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) IPOIB_FLAG_DEV_ADDR_CTRL = 14,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) IPOIB_MAX_BACKOFF_SECONDS = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) IPOIB_MCAST_FLAG_SENDONLY = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * For IPOIB_MCAST_FLAG_BUSY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * When set, in flight join and mcast->mc is unreliable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * haven't started yet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * When clear and mcast->mc is valid pointer, join was successful
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) IPOIB_MCAST_FLAG_BUSY = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) IPOIB_MCAST_FLAG_ATTACHED = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) MAX_SEND_CQE = 64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) IPOIB_CM_COPYBREAK = 256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) IPOIB_NON_CHILD = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) IPOIB_LEGACY_CHILD = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) IPOIB_RTNL_CHILD = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define IPOIB_OP_RECV (1ul << 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #ifdef CONFIG_INFINIBAND_IPOIB_CM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define IPOIB_OP_CM (1ul << 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #define IPOIB_OP_CM (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /* structs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) struct ipoib_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) __be16 proto;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) u16 reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct ipoib_pseudo_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) u8 hwaddr[INFINIBAND_ALEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) static inline void skb_add_pseudo_hdr(struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) char *data = skb_push(skb, IPOIB_PSEUDO_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * only the ipoib header is present now, make room for a dummy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * pseudo header and set skb field accordingly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) memset(data, 0, IPOIB_PSEUDO_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) skb_reset_mac_header(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) skb_pull(skb, IPOIB_HARD_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static inline struct ipoib_dev_priv *ipoib_priv(const struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct rdma_netdev *rn = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return rn->clnt_priv;
^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) /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct ipoib_mcast {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct ib_sa_mcmember_rec mcmember;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct ib_sa_multicast *mc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct ipoib_ah *ah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct rb_node rb_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) unsigned long created;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) unsigned long backoff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) unsigned long delay_until;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) unsigned char logcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) struct list_head neigh_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct sk_buff_head pkt_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct completion done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct ipoib_rx_buf {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) u64 mapping[IPOIB_UD_RX_SG];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct ipoib_tx_buf {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) u64 mapping[MAX_SKB_FRAGS + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) struct ib_cm_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct ipoib_cm_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) __be32 qpn; /* High byte MUST be ignored on receive */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) __be32 mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * Quoting 10.3.1 Queue Pair and EE Context States:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) * Note, for QPs that are associated with an SRQ, the Consumer should take the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) * QP through the Error State before invoking a Destroy QP or a Modify QP to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * Reset State. The Consumer may invoke the Destroy QP without first performing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * Last WQE Reached Event. However, if the Consumer does not wait for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * leakage may occur. Therefore, it is good programming practice to tear down a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * QP that is associated with an SRQ by using the following process:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * - Put the QP in the Error State
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) * - either:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) * drain the CQ by invoking the Poll CQ verb and either wait for CQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) * to be empty or the number of Poll CQ operations has exceeded
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) * CQ capacity size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * - or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) * post another WR that completes on the same CQ and wait for this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) * WR to return as a WC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) * - and then invoke a Destroy QP or Reset QP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) * We use the second option and wait for a completion on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * same CQ before destroying QPs attached to our SRQ.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) enum ipoib_cm_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) IPOIB_CM_RX_LIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) IPOIB_CM_RX_ERROR, /* Ignored by stale task */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct ipoib_cm_rx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) struct ib_cm_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct ib_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct ipoib_cm_rx_buf *rx_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) unsigned long jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) enum ipoib_cm_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int recv_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) struct ipoib_cm_tx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) struct ib_cm_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) struct ib_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) struct ipoib_neigh *neigh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) struct ipoib_tx_buf *tx_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) unsigned int tx_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) unsigned int tx_tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) u32 mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) unsigned int max_send_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) struct ipoib_cm_rx_buf {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) u64 mapping[IPOIB_CM_RX_SG];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) struct ipoib_cm_dev_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) struct ib_srq *srq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) struct ipoib_cm_rx_buf *srq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct ib_cm_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) struct list_head passive_ids; /* state: LIVE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct list_head rx_error_list; /* state: ERROR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct list_head rx_flush_list; /* state: FLUSH, drain not started */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) struct list_head rx_drain_list; /* state: FLUSH, drain started */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) struct list_head rx_reap_list; /* state: FLUSH, drain done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct work_struct start_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) struct work_struct reap_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) struct work_struct skb_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) struct work_struct rx_reap_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) struct delayed_work stale_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) struct sk_buff_head skb_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) struct list_head start_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) struct list_head reap_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct ib_wc ibwc[IPOIB_NUM_WC];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct ib_sge rx_sge[IPOIB_CM_RX_SG];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct ib_recv_wr rx_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) int nonsrq_conn_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) int max_cm_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) int num_frags;
^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) struct ipoib_ethtool_st {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) u16 coalesce_usecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) u16 max_coalesced_frames;
^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) struct ipoib_neigh_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) struct ipoib_neigh_hash {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) struct ipoib_neigh_table *ntbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) struct ipoib_neigh __rcu **buckets;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) u32 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) u32 size;
^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) struct ipoib_neigh_table {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) struct ipoib_neigh_hash __rcu *htbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) atomic_t entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct completion flushed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) struct completion deleted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) struct ipoib_qp_state_validate {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct ipoib_dev_priv *priv;
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) * Device private locking: network stack tx_lock protects members used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) * in TX fast path, lock protects everything else. lock nests inside
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) * of tx_lock (ie tx_lock must be acquired first if needed).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) struct ipoib_dev_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) void (*next_priv_destructor)(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct napi_struct send_napi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct napi_struct recv_napi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) unsigned long flags;
^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) * This protects access to the child_intfs list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) * To READ from child_intfs the RTNL or vlan_rwsem read side must be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) * held. To WRITE RTNL and the vlan_rwsem write side must be held (in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) * that order) This lock exists because we have a few contexts where
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) * we need the child_intfs, but do not want to grab the RTNL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) struct rw_semaphore vlan_rwsem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) struct mutex mcast_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) struct rb_root path_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) struct list_head path_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) struct ipoib_neigh_table ntbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct ipoib_mcast *broadcast;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) struct list_head multicast_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) struct rb_root multicast_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct workqueue_struct *wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) struct delayed_work mcast_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) struct work_struct carrier_on_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct work_struct flush_light;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) struct work_struct flush_normal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) struct work_struct flush_heavy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct work_struct restart_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) struct delayed_work ah_reap_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) struct delayed_work neigh_reap_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) struct ib_device *ca;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) u8 port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) u16 pkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) u16 pkey_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct ib_pd *pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct ib_cq *recv_cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) struct ib_cq *send_cq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) struct ib_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) u32 qkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) union ib_gid local_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) u32 local_lid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) unsigned int admin_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) unsigned int mcast_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) unsigned int max_ib_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) struct ipoib_rx_buf *rx_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct ipoib_tx_buf *tx_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) /* cyclic ring variables for managing tx_ring, for UD only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) unsigned int tx_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) unsigned int tx_tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) /* cyclic ring variables for counting overall outstanding send WRs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) unsigned int global_tx_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) unsigned int global_tx_tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) struct ib_ud_wr tx_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) struct ib_wc send_wc[MAX_SEND_CQE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) struct ib_recv_wr rx_wr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct ib_sge rx_sge[IPOIB_UD_RX_SG];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct ib_wc ibwc[IPOIB_NUM_WC];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) struct list_head dead_ahs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct ib_event_handler event_handler;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) struct net_device *parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) struct list_head child_intfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) int child_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) #ifdef CONFIG_INFINIBAND_IPOIB_CM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) struct ipoib_cm_dev_priv cm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) struct list_head fs_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) struct dentry *mcg_dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) struct dentry *path_dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) u64 hca_caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) struct ipoib_ethtool_st ethtool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) unsigned int max_send_sge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) bool sm_fullmember_sendonly_support;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) const struct net_device_ops *rn_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) struct ipoib_ah {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) struct ib_ah *ah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct kref ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) unsigned int last_send;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) int valid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) struct ipoib_path {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) struct sa_path_rec pathrec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) struct ipoib_ah *ah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) struct sk_buff_head queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) struct list_head neigh_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) int query_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) struct ib_sa_query *query;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) struct completion done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) struct rb_node rb_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) struct ipoib_neigh {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) struct ipoib_ah *ah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) #ifdef CONFIG_INFINIBAND_IPOIB_CM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) struct ipoib_cm_tx *cm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) u8 daddr[INFINIBAND_ALEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) struct sk_buff_head queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) struct ipoib_neigh __rcu *hnext;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) atomic_t refcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) unsigned long alive;
^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) #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) if (atomic_dec_and_test(&neigh->refcnt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) ipoib_neigh_dtor(neigh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) void ipoib_neigh_free(struct ipoib_neigh *neigh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) extern struct workqueue_struct *ipoib_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) /* functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) int ipoib_rx_poll(struct napi_struct *napi, int budget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) int ipoib_tx_poll(struct napi_struct *napi, int budget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) void ipoib_ib_rx_completion(struct ib_cq *cq, void *ctx_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) void ipoib_ib_tx_completion(struct ib_cq *cq, void *ctx_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) struct ib_pd *pd, struct rdma_ah_attr *attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) void ipoib_free_ah(struct kref *kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) static inline void ipoib_put_ah(struct ipoib_ah *ah)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) kref_put(&ah->ref, ipoib_free_ah);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) int ipoib_open(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) void ipoib_intf_free(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) int ipoib_add_pkey_attr(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) int ipoib_add_umcast_attr(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) int ipoib_send(struct net_device *dev, struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) struct ib_ah *address, u32 dqpn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) void ipoib_reap_ah(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) struct ipoib_path *__path_find(struct net_device *dev, void *gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) void ipoib_mark_paths_invalid(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) void ipoib_flush_paths(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) struct net_device *ipoib_intf_alloc(struct ib_device *hca, u8 port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) const char *format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) int ipoib_intf_init(struct ib_device *hca, u8 port, const char *format,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) void ipoib_ib_tx_timer_func(struct timer_list *t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) void ipoib_ib_dev_flush_light(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) void ipoib_ib_dev_flush_normal(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) void ipoib_ib_dev_flush_heavy(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) void ipoib_pkey_event(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) void ipoib_ib_dev_cleanup(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) int ipoib_ib_dev_open_default(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) int ipoib_ib_dev_open(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) void ipoib_ib_dev_stop(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) void ipoib_ib_dev_up(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) void ipoib_ib_dev_down(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) int ipoib_ib_dev_stop_default(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) void ipoib_pkey_dev_check_presence(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) void ipoib_mcast_join_task(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) void ipoib_mcast_carrier_on_task(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) void ipoib_mcast_restart_task(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) void ipoib_mcast_start_thread(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) void ipoib_mcast_stop_thread(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) void ipoib_mcast_dev_down(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) void ipoib_mcast_dev_flush(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) struct ipoib_tx_buf *tx_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) struct rtnl_link_ops *ipoib_get_link_ops(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) static inline void ipoib_build_sge(struct ipoib_dev_priv *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) struct ipoib_tx_buf *tx_req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) int i, off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) struct sk_buff *skb = tx_req->skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) skb_frag_t *frags = skb_shinfo(skb)->frags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) int nr_frags = skb_shinfo(skb)->nr_frags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) u64 *mapping = tx_req->mapping;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (skb_headlen(skb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) priv->tx_sge[0].addr = mapping[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) priv->tx_sge[0].length = skb_headlen(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) off = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) for (i = 0; i < nr_frags; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) priv->tx_sge[i + off].addr = mapping[i + off];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) priv->tx_sge[i + off].length = skb_frag_size(&frags[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) priv->tx_wr.wr.num_sge = nr_frags + off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) union ib_gid *gid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) unsigned long *created,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) unsigned int *queuelen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) unsigned int *complete,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) unsigned int *send_only);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) int ipoib_path_iter_next(struct ipoib_path_iter *iter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) void ipoib_path_iter_read(struct ipoib_path_iter *iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) struct ipoib_path *path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) int ipoib_mcast_attach(struct net_device *dev, struct ib_device *hca,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) union ib_gid *mgid, u16 mlid, int set_qkey, u32 qkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) int ipoib_mcast_detach(struct net_device *dev, struct ib_device *hca,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) union ib_gid *mgid, u16 mlid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) void ipoib_mcast_remove_list(struct list_head *remove_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) struct list_head *remove_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) int ipoib_init_qp(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) void ipoib_transport_dev_cleanup(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) void ipoib_event(struct ib_event_handler *handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) struct ib_event *record);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) u16 pkey, int child_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) int __init ipoib_netlink_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) void __exit ipoib_netlink_fini(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) int ipoib_set_mode(struct net_device *dev, const char *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) void ipoib_setup_common(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) void ipoib_pkey_open(struct ipoib_dev_priv *priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) void ipoib_drain_cq(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) void ipoib_set_ethtool_ops(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) #define IPOIB_FLAGS_RC 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) #define IPOIB_FLAGS_UC 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) /* We don't support UC connections at the moment */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) #ifdef CONFIG_INFINIBAND_IPOIB_CM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) extern int ipoib_max_conn_qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) static inline int ipoib_cm_admin_enabled(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) struct ipoib_dev_priv *priv = ipoib_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) struct ipoib_dev_priv *priv = ipoib_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) return IPOIB_CM_SUPPORTED(hwaddr) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) return neigh->cm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) neigh->cm = tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) static inline int ipoib_cm_has_srq(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) struct ipoib_dev_priv *priv = ipoib_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) return !!priv->cm.srq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) struct ipoib_dev_priv *priv = ipoib_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) return priv->cm.max_cm_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) int ipoib_cm_dev_open(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) void ipoib_cm_dev_stop(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) int ipoib_cm_dev_init(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) int ipoib_cm_add_mode_attr(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) void ipoib_cm_dev_cleanup(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) struct ipoib_neigh *neigh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) unsigned int mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) struct ipoib_cm_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) #define ipoib_max_conn_qp 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) static inline int ipoib_cm_admin_enabled(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) return NULL;
^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) static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) static inline int ipoib_cm_has_srq(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) int ipoib_cm_dev_open(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) void ipoib_cm_dev_stop(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) int ipoib_cm_dev_init(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) void ipoib_cm_dev_cleanup(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) struct ipoib_neigh *neigh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) int ipoib_cm_add_mode_attr(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) unsigned int mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) void ipoib_create_debug_files(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) void ipoib_delete_debug_files(struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) void ipoib_register_debugfs(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) void ipoib_unregister_debugfs(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) static inline void ipoib_create_debug_files(struct net_device *dev) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) static inline void ipoib_delete_debug_files(struct net_device *dev) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) static inline void ipoib_register_debugfs(void) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) static inline void ipoib_unregister_debugfs(void) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) #define ipoib_printk(level, priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) #define ipoib_warn(priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) static DEFINE_RATELIMIT_STATE(_rs, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) 10 * HZ /*10 seconds */, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) 100); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) if (__ratelimit(&_rs)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) ipoib_printk(KERN_WARNING, priv, format , ## arg);\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) extern int ipoib_sendq_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) extern int ipoib_recvq_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) extern struct ib_sa_client ipoib_sa_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) extern int ipoib_debug_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) #define ipoib_dbg(priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) if (ipoib_debug_level > 0) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) #define ipoib_dbg_mcast(priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) if (mcast_debug_level > 0) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) #define ipoib_dbg(priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) do { (void) (priv); } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) #define ipoib_dbg_mcast(priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) do { (void) (priv); } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) #define ipoib_dbg_data(priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) if (data_debug_level > 0) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) #define ipoib_dbg_data(priv, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) do { (void) (priv); } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) #endif /* _IPOIB_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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