1 /*******************************************************************
2 * This file is part of the Emulex RoCE Device Driver for *
3 * RoCE (RDMA over Converged Ethernet) adapters. *
4 * Copyright (C) 2008-2012 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
8 * This program is free software; you can redistribute it and/or *
9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
20 * Contact Information:
21 * linux-drivers@emulex.com
25 * Costa Mesa, CA 92626
26 *******************************************************************/
31 #include <linux/mutex.h>
32 #include <linux/list.h>
33 #include <linux/spinlock.h>
34 #include <linux/pci.h>
36 #include <rdma/ib_verbs.h>
37 #include <rdma/ib_user_verbs.h>
40 #include "ocrdma_sli.h"
42 #define OCRDMA_ROCE_DEV_VERSION "1.0.0"
43 #define OCRDMA_NODE_DESC "Emulex OneConnect RoCE HCA"
45 #define ocrdma_err(format, arg...) printk(KERN_ERR format, ##arg)
47 #define OCRDMA_MAX_AH 512
49 #define OCRDMA_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME)
51 struct ocrdma_dev_attr {
70 int max_pages_per_frmr;
75 u8 cq_overflow_detect;
81 u8 local_ca_ack_delay;
91 struct ocrdma_queue_info {
96 u16 entry_size; /* Size of an element in the queue */
97 u16 id; /* qid, where to ring the doorbell. */
100 atomic_t used; /* Number of valid elements in the queue */
104 struct ocrdma_queue_info q;
107 struct ocrdma_dev *dev;
112 struct ocrdma_queue_info sq;
113 struct ocrdma_queue_info cq;
118 struct mutex lock; /* for serializing mailbox commands on MQ */
119 wait_queue_head_t cmd_wait;
127 struct ib_device ibdev;
128 struct ocrdma_dev_attr attr;
130 struct mutex dev_lock; /* provides syncronise access to device data */
131 spinlock_t flush_q_lock ____cacheline_aligned;
133 struct ocrdma_cq **cq_tbl;
134 struct ocrdma_qp **qp_tbl;
136 struct ocrdma_eq meq;
137 struct ocrdma_eq *qp_eq_tbl;
142 union ib_gid *sgid_tbl;
143 /* provided synchronization to sgid table for
144 * updating gid entries triggered by notifier.
146 spinlock_t sgid_lock;
149 struct ocrdma_cq *gsi_sqcq;
150 struct ocrdma_cq *gsi_rqcq;
153 struct ocrdma_av *va;
157 /* provide synchronization for av
162 struct ocrdma_pbl pbl;
167 struct mqe_ctx mqe_ctx;
169 struct be_dev_info nic_info;
171 struct list_head entry;
178 struct ocrdma_dev *dev;
179 struct ocrdma_cqe *va;
181 u32 getp; /* pointer to pending wrs to
182 * return to stack, wrap arounds
187 bool armed, solicited;
190 spinlock_t cq_lock ____cacheline_aligned; /* provide synchronization
193 /* syncronizes cq completion handler invoked from multiple context */
194 spinlock_t comp_handler_lock ____cacheline_aligned;
198 struct ocrdma_ucontext *ucontext;
203 /* head of all qp's sq and rq for which cqes need to be flushed
206 struct list_head sq_head, rq_head;
211 struct ocrdma_dev *dev;
212 struct ocrdma_ucontext *uctx;
222 struct ocrdma_dev *dev;
223 struct ocrdma_av *av;
228 struct ocrdma_qp_hwq_info {
229 u8 *va; /* virtual address */
235 u16 dbid; /* qid, where to ring the doorbell. */
242 struct ocrdma_dev *dev;
244 /* provide synchronization to multiple context(s) posting rqe */
245 spinlock_t q_lock ____cacheline_aligned;
247 struct ocrdma_qp_hwq_info rq;
248 struct ocrdma_pd *pd;
258 struct ocrdma_dev *dev;
261 /* provide synchronization to multiple context(s) posting wqe, rqe */
262 spinlock_t q_lock ____cacheline_aligned;
263 struct ocrdma_qp_hwq_info sq;
266 uint16_t dpp_wqe_idx;
272 struct ocrdma_cq *sq_cq;
273 /* list maintained per CQ to flush SQ errors */
274 struct list_head sq_entry;
277 struct ocrdma_qp_hwq_info rq;
279 struct ocrdma_cq *rq_cq;
280 struct ocrdma_srq *srq;
281 /* list maintained per CQ to flush RQ errors */
282 struct list_head rq_entry;
284 enum ocrdma_qp_state state; /* QP state */
286 u32 max_ord, max_ird;
289 struct ocrdma_pd *pd;
291 enum ib_qp_type qp_type;
299 #define OCRDMA_GET_NUM_POSTED_SHIFT_VAL(qp) \
300 (((qp->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) && \
301 (qp->id < 64)) ? 24 : 16)
303 struct ocrdma_hw_mr {
304 struct ocrdma_dev *dev;
315 struct ocrdma_pbl *pbl_table;
326 struct ib_umem *umem;
327 struct ocrdma_hw_mr hwmr;
328 struct ocrdma_pd *pd;
331 struct ocrdma_ucontext {
332 struct ib_ucontext ibucontext;
333 struct ocrdma_dev *dev;
335 struct list_head mm_head;
336 struct mutex mm_list_lock; /* protects list entries of mm type */
349 struct list_head entry;
352 static inline struct ocrdma_dev *get_ocrdma_dev(struct ib_device *ibdev)
354 return container_of(ibdev, struct ocrdma_dev, ibdev);
357 static inline struct ocrdma_ucontext *get_ocrdma_ucontext(struct ib_ucontext
360 return container_of(ibucontext, struct ocrdma_ucontext, ibucontext);
363 static inline struct ocrdma_pd *get_ocrdma_pd(struct ib_pd *ibpd)
365 return container_of(ibpd, struct ocrdma_pd, ibpd);
368 static inline struct ocrdma_cq *get_ocrdma_cq(struct ib_cq *ibcq)
370 return container_of(ibcq, struct ocrdma_cq, ibcq);
373 static inline struct ocrdma_qp *get_ocrdma_qp(struct ib_qp *ibqp)
375 return container_of(ibqp, struct ocrdma_qp, ibqp);
378 static inline struct ocrdma_mr *get_ocrdma_mr(struct ib_mr *ibmr)
380 return container_of(ibmr, struct ocrdma_mr, ibmr);
383 static inline struct ocrdma_ah *get_ocrdma_ah(struct ib_ah *ibah)
385 return container_of(ibah, struct ocrdma_ah, ibah);
388 static inline struct ocrdma_srq *get_ocrdma_srq(struct ib_srq *ibsrq)
390 return container_of(ibsrq, struct ocrdma_srq, ibsrq);