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
);