1 /*******************************************************************
2 * This file is part of the Emulex RoCE Device Driver for *
3 * RoCE (RDMA over Converged Ethernet) CNA 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 *******************************************************************/
28 #include <linux/sched.h>
29 #include <linux/interrupt.h>
30 #include <linux/log2.h>
31 #include <linux/dma-mapping.h>
33 #include <rdma/ib_verbs.h>
34 #include <rdma/ib_user_verbs.h>
37 #include "ocrdma_hw.h"
38 #include "ocrdma_verbs.h"
39 #include "ocrdma_ah.h"
42 OCRDMA_MBX_STATUS_FAILED
= 1,
43 OCRDMA_MBX_STATUS_ILLEGAL_FIELD
= 3,
44 OCRDMA_MBX_STATUS_OOR
= 100,
45 OCRDMA_MBX_STATUS_INVALID_PD
= 101,
46 OCRDMA_MBX_STATUS_PD_INUSE
= 102,
47 OCRDMA_MBX_STATUS_INVALID_CQ
= 103,
48 OCRDMA_MBX_STATUS_INVALID_QP
= 104,
49 OCRDMA_MBX_STATUS_INVALID_LKEY
= 105,
50 OCRDMA_MBX_STATUS_ORD_EXCEEDS
= 106,
51 OCRDMA_MBX_STATUS_IRD_EXCEEDS
= 107,
52 OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS
= 108,
53 OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS
= 109,
54 OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS
= 110,
55 OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS
= 111,
56 OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS
= 112,
57 OCRDMA_MBX_STATUS_INVALID_STATE_CHANGE
= 113,
58 OCRDMA_MBX_STATUS_MW_BOUND
= 114,
59 OCRDMA_MBX_STATUS_INVALID_VA
= 115,
60 OCRDMA_MBX_STATUS_INVALID_LENGTH
= 116,
61 OCRDMA_MBX_STATUS_INVALID_FBO
= 117,
62 OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS
= 118,
63 OCRDMA_MBX_STATUS_INVALID_PBE_SIZE
= 119,
64 OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY
= 120,
65 OCRDMA_MBX_STATUS_INVALID_PBL_SHIFT
= 121,
66 OCRDMA_MBX_STATUS_INVALID_SRQ_ID
= 129,
67 OCRDMA_MBX_STATUS_SRQ_ERROR
= 133,
68 OCRDMA_MBX_STATUS_RQE_EXCEEDS
= 134,
69 OCRDMA_MBX_STATUS_MTU_EXCEEDS
= 135,
70 OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS
= 136,
71 OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS
= 137,
72 OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS
= 138,
73 OCRDMA_MBX_STATUS_QP_BOUND
= 130,
74 OCRDMA_MBX_STATUS_INVALID_CHANGE
= 139,
75 OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP
= 140,
76 OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER
= 141,
77 OCRDMA_MBX_STATUS_MW_STILL_BOUND
= 142,
78 OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID
= 143,
79 OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS
= 144
82 enum additional_status
{
83 OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES
= 22
87 OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES
= 1,
88 OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER
= 2,
89 OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES
= 3,
90 OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING
= 4,
91 OCRDMA_MBX_CQE_STATUS_DMA_FAILED
= 5
94 static inline void *ocrdma_get_eqe(struct ocrdma_eq
*eq
)
96 return eq
->q
.va
+ (eq
->q
.tail
* sizeof(struct ocrdma_eqe
));
99 static inline void ocrdma_eq_inc_tail(struct ocrdma_eq
*eq
)
101 eq
->q
.tail
= (eq
->q
.tail
+ 1) & (OCRDMA_EQ_LEN
- 1);
104 static inline void *ocrdma_get_mcqe(struct ocrdma_dev
*dev
)
106 struct ocrdma_mcqe
*cqe
= (struct ocrdma_mcqe
*)
107 (dev
->mq
.cq
.va
+ (dev
->mq
.cq
.tail
* sizeof(struct ocrdma_mcqe
)));
109 if (!(le32_to_cpu(cqe
->valid_ae_cmpl_cons
) & OCRDMA_MCQE_VALID_MASK
))
114 static inline void ocrdma_mcq_inc_tail(struct ocrdma_dev
*dev
)
116 dev
->mq
.cq
.tail
= (dev
->mq
.cq
.tail
+ 1) & (OCRDMA_MQ_CQ_LEN
- 1);
119 static inline struct ocrdma_mqe
*ocrdma_get_mqe(struct ocrdma_dev
*dev
)
121 return dev
->mq
.sq
.va
+ (dev
->mq
.sq
.head
* sizeof(struct ocrdma_mqe
));
124 static inline void ocrdma_mq_inc_head(struct ocrdma_dev
*dev
)
126 dev
->mq
.sq
.head
= (dev
->mq
.sq
.head
+ 1) & (OCRDMA_MQ_LEN
- 1);
129 static inline void *ocrdma_get_mqe_rsp(struct ocrdma_dev
*dev
)
131 return dev
->mq
.sq
.va
+ (dev
->mqe_ctx
.tag
* sizeof(struct ocrdma_mqe
));
134 enum ib_qp_state
get_ibqp_state(enum ocrdma_qp_state qps
)
139 case OCRDMA_QPS_INIT
:
146 case OCRDMA_QPS_SQ_DRAINING
:
156 static enum ocrdma_qp_state
get_ocrdma_qp_state(enum ib_qp_state qps
)
160 return OCRDMA_QPS_RST
;
162 return OCRDMA_QPS_INIT
;
164 return OCRDMA_QPS_RTR
;
166 return OCRDMA_QPS_RTS
;
168 return OCRDMA_QPS_SQD
;
170 return OCRDMA_QPS_SQE
;
172 return OCRDMA_QPS_ERR
;
174 return OCRDMA_QPS_ERR
;
177 static int ocrdma_get_mbx_errno(u32 status
)
180 u8 mbox_status
= (status
& OCRDMA_MBX_RSP_STATUS_MASK
) >>
181 OCRDMA_MBX_RSP_STATUS_SHIFT
;
182 u8 add_status
= (status
& OCRDMA_MBX_RSP_ASTATUS_MASK
) >>
183 OCRDMA_MBX_RSP_ASTATUS_SHIFT
;
185 switch (mbox_status
) {
186 case OCRDMA_MBX_STATUS_OOR
:
187 case OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS
:
191 case OCRDMA_MBX_STATUS_INVALID_PD
:
192 case OCRDMA_MBX_STATUS_INVALID_CQ
:
193 case OCRDMA_MBX_STATUS_INVALID_SRQ_ID
:
194 case OCRDMA_MBX_STATUS_INVALID_QP
:
195 case OCRDMA_MBX_STATUS_INVALID_CHANGE
:
196 case OCRDMA_MBX_STATUS_MTU_EXCEEDS
:
197 case OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER
:
198 case OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID
:
199 case OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS
:
200 case OCRDMA_MBX_STATUS_ILLEGAL_FIELD
:
201 case OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY
:
202 case OCRDMA_MBX_STATUS_INVALID_LKEY
:
203 case OCRDMA_MBX_STATUS_INVALID_VA
:
204 case OCRDMA_MBX_STATUS_INVALID_LENGTH
:
205 case OCRDMA_MBX_STATUS_INVALID_FBO
:
206 case OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS
:
207 case OCRDMA_MBX_STATUS_INVALID_PBE_SIZE
:
208 case OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP
:
209 case OCRDMA_MBX_STATUS_SRQ_ERROR
:
210 case OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS
:
214 case OCRDMA_MBX_STATUS_PD_INUSE
:
215 case OCRDMA_MBX_STATUS_QP_BOUND
:
216 case OCRDMA_MBX_STATUS_MW_STILL_BOUND
:
217 case OCRDMA_MBX_STATUS_MW_BOUND
:
221 case OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS
:
222 case OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS
:
223 case OCRDMA_MBX_STATUS_RQE_EXCEEDS
:
224 case OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS
:
225 case OCRDMA_MBX_STATUS_ORD_EXCEEDS
:
226 case OCRDMA_MBX_STATUS_IRD_EXCEEDS
:
227 case OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS
:
228 case OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS
:
229 case OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS
:
233 case OCRDMA_MBX_STATUS_FAILED
:
234 switch (add_status
) {
235 case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES
:
245 char *port_speed_string(struct ocrdma_dev
*dev
)
248 u16 speeds_supported
;
250 speeds_supported
= dev
->phy
.fixed_speeds_supported
|
251 dev
->phy
.auto_speeds_supported
;
252 if (speeds_supported
& OCRDMA_PHY_SPEED_40GBPS
)
254 else if (speeds_supported
& OCRDMA_PHY_SPEED_10GBPS
)
256 else if (speeds_supported
& OCRDMA_PHY_SPEED_1GBPS
)
262 static int ocrdma_get_mbx_cqe_errno(u16 cqe_status
)
264 int err_num
= -EINVAL
;
266 switch (cqe_status
) {
267 case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES
:
270 case OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER
:
273 case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES
:
274 case OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING
:
277 case OCRDMA_MBX_CQE_STATUS_DMA_FAILED
:
285 void ocrdma_ring_cq_db(struct ocrdma_dev
*dev
, u16 cq_id
, bool armed
,
286 bool solicited
, u16 cqe_popped
)
288 u32 val
= cq_id
& OCRDMA_DB_CQ_RING_ID_MASK
;
290 val
|= ((cq_id
& OCRDMA_DB_CQ_RING_ID_EXT_MASK
) <<
291 OCRDMA_DB_CQ_RING_ID_EXT_MASK_SHIFT
);
294 val
|= (1 << OCRDMA_DB_CQ_REARM_SHIFT
);
296 val
|= (1 << OCRDMA_DB_CQ_SOLICIT_SHIFT
);
297 val
|= (cqe_popped
<< OCRDMA_DB_CQ_NUM_POPPED_SHIFT
);
298 iowrite32(val
, dev
->nic_info
.db
+ OCRDMA_DB_CQ_OFFSET
);
301 static void ocrdma_ring_mq_db(struct ocrdma_dev
*dev
)
305 val
|= dev
->mq
.sq
.id
& OCRDMA_MQ_ID_MASK
;
306 val
|= 1 << OCRDMA_MQ_NUM_MQE_SHIFT
;
307 iowrite32(val
, dev
->nic_info
.db
+ OCRDMA_DB_MQ_OFFSET
);
310 static void ocrdma_ring_eq_db(struct ocrdma_dev
*dev
, u16 eq_id
,
311 bool arm
, bool clear_int
, u16 num_eqe
)
315 val
|= eq_id
& OCRDMA_EQ_ID_MASK
;
316 val
|= ((eq_id
& OCRDMA_EQ_ID_EXT_MASK
) << OCRDMA_EQ_ID_EXT_MASK_SHIFT
);
318 val
|= (1 << OCRDMA_REARM_SHIFT
);
320 val
|= (1 << OCRDMA_EQ_CLR_SHIFT
);
321 val
|= (1 << OCRDMA_EQ_TYPE_SHIFT
);
322 val
|= (num_eqe
<< OCRDMA_NUM_EQE_SHIFT
);
323 iowrite32(val
, dev
->nic_info
.db
+ OCRDMA_DB_EQ_OFFSET
);
326 static void ocrdma_init_mch(struct ocrdma_mbx_hdr
*cmd_hdr
,
327 u8 opcode
, u8 subsys
, u32 cmd_len
)
329 cmd_hdr
->subsys_op
= (opcode
| (subsys
<< OCRDMA_MCH_SUBSYS_SHIFT
));
330 cmd_hdr
->timeout
= 20; /* seconds */
331 cmd_hdr
->cmd_len
= cmd_len
- sizeof(struct ocrdma_mbx_hdr
);
334 static void *ocrdma_init_emb_mqe(u8 opcode
, u32 cmd_len
)
336 struct ocrdma_mqe
*mqe
;
338 mqe
= kzalloc(sizeof(struct ocrdma_mqe
), GFP_KERNEL
);
341 mqe
->hdr
.spcl_sge_cnt_emb
|=
342 (OCRDMA_MQE_EMBEDDED
<< OCRDMA_MQE_HDR_EMB_SHIFT
) &
343 OCRDMA_MQE_HDR_EMB_MASK
;
344 mqe
->hdr
.pyld_len
= cmd_len
- sizeof(struct ocrdma_mqe_hdr
);
346 ocrdma_init_mch(&mqe
->u
.emb_req
.mch
, opcode
, OCRDMA_SUBSYS_ROCE
,
351 static void ocrdma_free_q(struct ocrdma_dev
*dev
, struct ocrdma_queue_info
*q
)
353 dma_free_coherent(&dev
->nic_info
.pdev
->dev
, q
->size
, q
->va
, q
->dma
);
356 static int ocrdma_alloc_q(struct ocrdma_dev
*dev
,
357 struct ocrdma_queue_info
*q
, u16 len
, u16 entry_size
)
359 memset(q
, 0, sizeof(*q
));
361 q
->entry_size
= entry_size
;
362 q
->size
= len
* entry_size
;
363 q
->va
= dma_alloc_coherent(&dev
->nic_info
.pdev
->dev
, q
->size
,
364 &q
->dma
, GFP_KERNEL
);
367 memset(q
->va
, 0, q
->size
);
371 static void ocrdma_build_q_pages(struct ocrdma_pa
*q_pa
, int cnt
,
372 dma_addr_t host_pa
, int hw_page_size
)
376 for (i
= 0; i
< cnt
; i
++) {
377 q_pa
[i
].lo
= (u32
) (host_pa
& 0xffffffff);
378 q_pa
[i
].hi
= (u32
) upper_32_bits(host_pa
);
379 host_pa
+= hw_page_size
;
383 static int ocrdma_mbx_delete_q(struct ocrdma_dev
*dev
,
384 struct ocrdma_queue_info
*q
, int queue_type
)
388 struct ocrdma_delete_q_req
*cmd
= dev
->mbx_cmd
;
390 switch (queue_type
) {
392 opcode
= OCRDMA_CMD_DELETE_MQ
;
395 opcode
= OCRDMA_CMD_DELETE_CQ
;
398 opcode
= OCRDMA_CMD_DELETE_EQ
;
403 memset(cmd
, 0, sizeof(*cmd
));
404 ocrdma_init_mch(&cmd
->req
, opcode
, OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
407 status
= be_roce_mcc_cmd(dev
->nic_info
.netdev
,
408 cmd
, sizeof(*cmd
), NULL
, NULL
);
414 static int ocrdma_mbx_create_eq(struct ocrdma_dev
*dev
, struct ocrdma_eq
*eq
)
417 struct ocrdma_create_eq_req
*cmd
= dev
->mbx_cmd
;
418 struct ocrdma_create_eq_rsp
*rsp
= dev
->mbx_cmd
;
420 memset(cmd
, 0, sizeof(*cmd
));
421 ocrdma_init_mch(&cmd
->req
, OCRDMA_CMD_CREATE_EQ
, OCRDMA_SUBSYS_COMMON
,
424 cmd
->req
.rsvd_version
= 2;
426 cmd
->valid
= OCRDMA_CREATE_EQ_VALID
;
427 cmd
->cnt
= 4 << OCRDMA_CREATE_EQ_CNT_SHIFT
;
429 ocrdma_build_q_pages(&cmd
->pa
[0], cmd
->num_pages
, eq
->q
.dma
,
431 status
= be_roce_mcc_cmd(dev
->nic_info
.netdev
, cmd
, sizeof(*cmd
), NULL
,
434 eq
->q
.id
= rsp
->vector_eqid
& 0xffff;
435 eq
->vector
= (rsp
->vector_eqid
>> 16) & 0xffff;
436 eq
->q
.created
= true;
441 static int ocrdma_create_eq(struct ocrdma_dev
*dev
,
442 struct ocrdma_eq
*eq
, u16 q_len
)
446 status
= ocrdma_alloc_q(dev
, &eq
->q
, OCRDMA_EQ_LEN
,
447 sizeof(struct ocrdma_eqe
));
451 status
= ocrdma_mbx_create_eq(dev
, eq
);
455 ocrdma_ring_eq_db(dev
, eq
->q
.id
, true, true, 0);
459 ocrdma_free_q(dev
, &eq
->q
);
463 int ocrdma_get_irq(struct ocrdma_dev
*dev
, struct ocrdma_eq
*eq
)
467 if (dev
->nic_info
.intr_mode
== BE_INTERRUPT_MODE_INTX
)
468 irq
= dev
->nic_info
.pdev
->irq
;
470 irq
= dev
->nic_info
.msix
.vector_list
[eq
->vector
];
474 static void _ocrdma_destroy_eq(struct ocrdma_dev
*dev
, struct ocrdma_eq
*eq
)
477 ocrdma_mbx_delete_q(dev
, &eq
->q
, QTYPE_EQ
);
478 ocrdma_free_q(dev
, &eq
->q
);
482 static void ocrdma_destroy_eq(struct ocrdma_dev
*dev
, struct ocrdma_eq
*eq
)
486 /* disarm EQ so that interrupts are not generated
487 * during freeing and EQ delete is in progress.
489 ocrdma_ring_eq_db(dev
, eq
->q
.id
, false, false, 0);
491 irq
= ocrdma_get_irq(dev
, eq
);
493 _ocrdma_destroy_eq(dev
, eq
);
496 static void ocrdma_destroy_eqs(struct ocrdma_dev
*dev
)
500 for (i
= 0; i
< dev
->eq_cnt
; i
++)
501 ocrdma_destroy_eq(dev
, &dev
->eq_tbl
[i
]);
504 static int ocrdma_mbx_mq_cq_create(struct ocrdma_dev
*dev
,
505 struct ocrdma_queue_info
*cq
,
506 struct ocrdma_queue_info
*eq
)
508 struct ocrdma_create_cq_cmd
*cmd
= dev
->mbx_cmd
;
509 struct ocrdma_create_cq_cmd_rsp
*rsp
= dev
->mbx_cmd
;
512 memset(cmd
, 0, sizeof(*cmd
));
513 ocrdma_init_mch(&cmd
->req
, OCRDMA_CMD_CREATE_CQ
,
514 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
516 cmd
->req
.rsvd_version
= OCRDMA_CREATE_CQ_VER2
;
517 cmd
->pgsz_pgcnt
= (cq
->size
/ OCRDMA_MIN_Q_PAGE_SIZE
) <<
518 OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT
;
519 cmd
->pgsz_pgcnt
|= PAGES_4K_SPANNED(cq
->va
, cq
->size
);
521 cmd
->ev_cnt_flags
= OCRDMA_CREATE_CQ_DEF_FLAGS
;
523 cmd
->pdid_cqecnt
= cq
->size
/ sizeof(struct ocrdma_mcqe
);
525 ocrdma_build_q_pages(&cmd
->pa
[0], cq
->size
/ OCRDMA_MIN_Q_PAGE_SIZE
,
526 cq
->dma
, PAGE_SIZE_4K
);
527 status
= be_roce_mcc_cmd(dev
->nic_info
.netdev
,
528 cmd
, sizeof(*cmd
), NULL
, NULL
);
530 cq
->id
= (u16
) (rsp
->cq_id
& OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK
);
536 static u32
ocrdma_encoded_q_len(int q_len
)
538 u32 len_encoded
= fls(q_len
); /* log2(len) + 1 */
540 if (len_encoded
== 16)
545 static int ocrdma_mbx_create_mq(struct ocrdma_dev
*dev
,
546 struct ocrdma_queue_info
*mq
,
547 struct ocrdma_queue_info
*cq
)
549 int num_pages
, status
;
550 struct ocrdma_create_mq_req
*cmd
= dev
->mbx_cmd
;
551 struct ocrdma_create_mq_rsp
*rsp
= dev
->mbx_cmd
;
552 struct ocrdma_pa
*pa
;
554 memset(cmd
, 0, sizeof(*cmd
));
555 num_pages
= PAGES_4K_SPANNED(mq
->va
, mq
->size
);
557 ocrdma_init_mch(&cmd
->req
, OCRDMA_CMD_CREATE_MQ_EXT
,
558 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
559 cmd
->req
.rsvd_version
= 1;
560 cmd
->cqid_pages
= num_pages
;
561 cmd
->cqid_pages
|= (cq
->id
<< OCRDMA_CREATE_MQ_CQ_ID_SHIFT
);
562 cmd
->async_cqid_valid
= OCRDMA_CREATE_MQ_ASYNC_CQ_VALID
;
564 cmd
->async_event_bitmap
= BIT(OCRDMA_ASYNC_GRP5_EVE_CODE
);
565 cmd
->async_event_bitmap
|= BIT(OCRDMA_ASYNC_RDMA_EVE_CODE
);
567 cmd
->async_cqid_ringsize
= cq
->id
;
568 cmd
->async_cqid_ringsize
|= (ocrdma_encoded_q_len(mq
->len
) <<
569 OCRDMA_CREATE_MQ_RING_SIZE_SHIFT
);
570 cmd
->valid
= OCRDMA_CREATE_MQ_VALID
;
573 ocrdma_build_q_pages(pa
, num_pages
, mq
->dma
, PAGE_SIZE_4K
);
574 status
= be_roce_mcc_cmd(dev
->nic_info
.netdev
,
575 cmd
, sizeof(*cmd
), NULL
, NULL
);
583 static int ocrdma_create_mq(struct ocrdma_dev
*dev
)
587 /* Alloc completion queue for Mailbox queue */
588 status
= ocrdma_alloc_q(dev
, &dev
->mq
.cq
, OCRDMA_MQ_CQ_LEN
,
589 sizeof(struct ocrdma_mcqe
));
593 dev
->eq_tbl
[0].cq_cnt
++;
594 status
= ocrdma_mbx_mq_cq_create(dev
, &dev
->mq
.cq
, &dev
->eq_tbl
[0].q
);
598 memset(&dev
->mqe_ctx
, 0, sizeof(dev
->mqe_ctx
));
599 init_waitqueue_head(&dev
->mqe_ctx
.cmd_wait
);
600 mutex_init(&dev
->mqe_ctx
.lock
);
602 /* Alloc Mailbox queue */
603 status
= ocrdma_alloc_q(dev
, &dev
->mq
.sq
, OCRDMA_MQ_LEN
,
604 sizeof(struct ocrdma_mqe
));
607 status
= ocrdma_mbx_create_mq(dev
, &dev
->mq
.sq
, &dev
->mq
.cq
);
610 ocrdma_ring_cq_db(dev
, dev
->mq
.cq
.id
, true, false, 0);
614 ocrdma_free_q(dev
, &dev
->mq
.sq
);
616 ocrdma_mbx_delete_q(dev
, &dev
->mq
.cq
, QTYPE_CQ
);
618 ocrdma_free_q(dev
, &dev
->mq
.cq
);
623 static void ocrdma_destroy_mq(struct ocrdma_dev
*dev
)
625 struct ocrdma_queue_info
*mbxq
, *cq
;
627 /* mqe_ctx lock synchronizes with any other pending cmds. */
628 mutex_lock(&dev
->mqe_ctx
.lock
);
631 ocrdma_mbx_delete_q(dev
, mbxq
, QTYPE_MCCQ
);
632 ocrdma_free_q(dev
, mbxq
);
634 mutex_unlock(&dev
->mqe_ctx
.lock
);
638 ocrdma_mbx_delete_q(dev
, cq
, QTYPE_CQ
);
639 ocrdma_free_q(dev
, cq
);
643 static void ocrdma_process_qpcat_error(struct ocrdma_dev
*dev
,
644 struct ocrdma_qp
*qp
)
646 enum ib_qp_state new_ib_qps
= IB_QPS_ERR
;
647 enum ib_qp_state old_ib_qps
;
651 ocrdma_qp_state_change(qp
, new_ib_qps
, &old_ib_qps
);
654 static void ocrdma_dispatch_ibevent(struct ocrdma_dev
*dev
,
655 struct ocrdma_ae_mcqe
*cqe
)
657 struct ocrdma_qp
*qp
= NULL
;
658 struct ocrdma_cq
*cq
= NULL
;
659 struct ib_event ib_evt
;
664 int type
= (cqe
->valid_ae_event
& OCRDMA_AE_MCQE_EVENT_TYPE_MASK
) >>
665 OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT
;
667 if (cqe
->qpvalid_qpid
& OCRDMA_AE_MCQE_QPVALID
)
668 qp
= dev
->qp_tbl
[cqe
->qpvalid_qpid
& OCRDMA_AE_MCQE_QPID_MASK
];
669 if (cqe
->cqvalid_cqid
& OCRDMA_AE_MCQE_CQVALID
)
670 cq
= dev
->cq_tbl
[cqe
->cqvalid_cqid
& OCRDMA_AE_MCQE_CQID_MASK
];
672 memset(&ib_evt
, 0, sizeof(ib_evt
));
674 ib_evt
.device
= &dev
->ibdev
;
677 case OCRDMA_CQ_ERROR
:
678 ib_evt
.element
.cq
= &cq
->ibcq
;
679 ib_evt
.event
= IB_EVENT_CQ_ERR
;
683 case OCRDMA_CQ_OVERRUN_ERROR
:
684 ib_evt
.element
.cq
= &cq
->ibcq
;
685 ib_evt
.event
= IB_EVENT_CQ_ERR
;
689 case OCRDMA_CQ_QPCAT_ERROR
:
690 ib_evt
.element
.qp
= &qp
->ibqp
;
691 ib_evt
.event
= IB_EVENT_QP_FATAL
;
692 ocrdma_process_qpcat_error(dev
, qp
);
694 case OCRDMA_QP_ACCESS_ERROR
:
695 ib_evt
.element
.qp
= &qp
->ibqp
;
696 ib_evt
.event
= IB_EVENT_QP_ACCESS_ERR
;
698 case OCRDMA_QP_COMM_EST_EVENT
:
699 ib_evt
.element
.qp
= &qp
->ibqp
;
700 ib_evt
.event
= IB_EVENT_COMM_EST
;
702 case OCRDMA_SQ_DRAINED_EVENT
:
703 ib_evt
.element
.qp
= &qp
->ibqp
;
704 ib_evt
.event
= IB_EVENT_SQ_DRAINED
;
706 case OCRDMA_DEVICE_FATAL_EVENT
:
707 ib_evt
.element
.port_num
= 1;
708 ib_evt
.event
= IB_EVENT_DEVICE_FATAL
;
712 case OCRDMA_SRQCAT_ERROR
:
713 ib_evt
.element
.srq
= &qp
->srq
->ibsrq
;
714 ib_evt
.event
= IB_EVENT_SRQ_ERR
;
718 case OCRDMA_SRQ_LIMIT_EVENT
:
719 ib_evt
.element
.srq
= &qp
->srq
->ibsrq
;
720 ib_evt
.event
= IB_EVENT_SRQ_LIMIT_REACHED
;
724 case OCRDMA_QP_LAST_WQE_EVENT
:
725 ib_evt
.element
.qp
= &qp
->ibqp
;
726 ib_evt
.event
= IB_EVENT_QP_LAST_WQE_REACHED
;
733 pr_err("%s() unknown type=0x%x\n", __func__
, type
);
737 if (type
< OCRDMA_MAX_ASYNC_ERRORS
)
738 atomic_inc(&dev
->async_err_stats
[type
]);
741 if (qp
->ibqp
.event_handler
)
742 qp
->ibqp
.event_handler(&ib_evt
, qp
->ibqp
.qp_context
);
743 } else if (cq_event
) {
744 if (cq
->ibcq
.event_handler
)
745 cq
->ibcq
.event_handler(&ib_evt
, cq
->ibcq
.cq_context
);
746 } else if (srq_event
) {
747 if (qp
->srq
->ibsrq
.event_handler
)
748 qp
->srq
->ibsrq
.event_handler(&ib_evt
,
751 } else if (dev_event
) {
752 pr_err("%s: Fatal event received\n", dev
->ibdev
.name
);
753 ib_dispatch_event(&ib_evt
);
758 static void ocrdma_process_grp5_aync(struct ocrdma_dev
*dev
,
759 struct ocrdma_ae_mcqe
*cqe
)
761 struct ocrdma_ae_pvid_mcqe
*evt
;
762 int type
= (cqe
->valid_ae_event
& OCRDMA_AE_MCQE_EVENT_TYPE_MASK
) >>
763 OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT
;
766 case OCRDMA_ASYNC_EVENT_PVID_STATE
:
767 evt
= (struct ocrdma_ae_pvid_mcqe
*)cqe
;
768 if ((evt
->tag_enabled
& OCRDMA_AE_PVID_MCQE_ENABLED_MASK
) >>
769 OCRDMA_AE_PVID_MCQE_ENABLED_SHIFT
)
770 dev
->pvid
= ((evt
->tag_enabled
&
771 OCRDMA_AE_PVID_MCQE_TAG_MASK
) >>
772 OCRDMA_AE_PVID_MCQE_TAG_SHIFT
);
775 case OCRDMA_ASYNC_EVENT_COS_VALUE
:
776 atomic_set(&dev
->update_sl
, 1);
779 /* Not interested evts. */
784 static void ocrdma_process_acqe(struct ocrdma_dev
*dev
, void *ae_cqe
)
786 /* async CQE processing */
787 struct ocrdma_ae_mcqe
*cqe
= ae_cqe
;
788 u32 evt_code
= (cqe
->valid_ae_event
& OCRDMA_AE_MCQE_EVENT_CODE_MASK
) >>
789 OCRDMA_AE_MCQE_EVENT_CODE_SHIFT
;
791 if (evt_code
== OCRDMA_ASYNC_RDMA_EVE_CODE
)
792 ocrdma_dispatch_ibevent(dev
, cqe
);
793 else if (evt_code
== OCRDMA_ASYNC_GRP5_EVE_CODE
)
794 ocrdma_process_grp5_aync(dev
, cqe
);
796 pr_err("%s(%d) invalid evt code=0x%x\n", __func__
,
800 static void ocrdma_process_mcqe(struct ocrdma_dev
*dev
, struct ocrdma_mcqe
*cqe
)
802 if (dev
->mqe_ctx
.tag
== cqe
->tag_lo
&& dev
->mqe_ctx
.cmd_done
== false) {
803 dev
->mqe_ctx
.cqe_status
= (cqe
->status
&
804 OCRDMA_MCQE_STATUS_MASK
) >> OCRDMA_MCQE_STATUS_SHIFT
;
805 dev
->mqe_ctx
.ext_status
=
806 (cqe
->status
& OCRDMA_MCQE_ESTATUS_MASK
)
807 >> OCRDMA_MCQE_ESTATUS_SHIFT
;
808 dev
->mqe_ctx
.cmd_done
= true;
809 wake_up(&dev
->mqe_ctx
.cmd_wait
);
811 pr_err("%s() cqe for invalid tag0x%x.expected=0x%x\n",
812 __func__
, cqe
->tag_lo
, dev
->mqe_ctx
.tag
);
815 static int ocrdma_mq_cq_handler(struct ocrdma_dev
*dev
, u16 cq_id
)
818 struct ocrdma_mcqe
*cqe
;
821 cqe
= ocrdma_get_mcqe(dev
);
824 ocrdma_le32_to_cpu(cqe
, sizeof(*cqe
));
826 if (cqe
->valid_ae_cmpl_cons
& OCRDMA_MCQE_AE_MASK
)
827 ocrdma_process_acqe(dev
, cqe
);
828 else if (cqe
->valid_ae_cmpl_cons
& OCRDMA_MCQE_CMPL_MASK
)
829 ocrdma_process_mcqe(dev
, cqe
);
830 memset(cqe
, 0, sizeof(struct ocrdma_mcqe
));
831 ocrdma_mcq_inc_tail(dev
);
833 ocrdma_ring_cq_db(dev
, dev
->mq
.cq
.id
, true, false, cqe_popped
);
837 static struct ocrdma_cq
*_ocrdma_qp_buddy_cq_handler(struct ocrdma_dev
*dev
,
838 struct ocrdma_cq
*cq
, bool sq
)
840 struct ocrdma_qp
*qp
;
841 struct list_head
*cur
;
842 struct ocrdma_cq
*bcq
= NULL
;
843 struct list_head
*head
= sq
?(&cq
->sq_head
):(&cq
->rq_head
);
845 list_for_each(cur
, head
) {
847 qp
= list_entry(cur
, struct ocrdma_qp
, sq_entry
);
849 qp
= list_entry(cur
, struct ocrdma_qp
, rq_entry
);
853 /* if wq and rq share the same cq, than comp_handler
854 * is already invoked.
856 if (qp
->sq_cq
== qp
->rq_cq
)
858 /* if completion came on sq, rq's cq is buddy cq.
859 * if completion came on rq, sq's cq is buddy cq.
870 static void ocrdma_qp_buddy_cq_handler(struct ocrdma_dev
*dev
,
871 struct ocrdma_cq
*cq
)
874 struct ocrdma_cq
*bcq
= NULL
;
876 /* Go through list of QPs in error state which are using this CQ
877 * and invoke its callback handler to trigger CQE processing for
878 * error/flushed CQE. It is rare to find more than few entries in
879 * this list as most consumers stops after getting error CQE.
880 * List is traversed only once when a matching buddy cq found for a QP.
882 spin_lock_irqsave(&dev
->flush_q_lock
, flags
);
883 /* Check if buddy CQ is present.
884 * true - Check for SQ CQ
885 * false - Check for RQ CQ
887 bcq
= _ocrdma_qp_buddy_cq_handler(dev
, cq
, true);
889 bcq
= _ocrdma_qp_buddy_cq_handler(dev
, cq
, false);
890 spin_unlock_irqrestore(&dev
->flush_q_lock
, flags
);
892 /* if there is valid buddy cq, look for its completion handler */
893 if (bcq
&& bcq
->ibcq
.comp_handler
) {
894 spin_lock_irqsave(&bcq
->comp_handler_lock
, flags
);
895 (*bcq
->ibcq
.comp_handler
) (&bcq
->ibcq
, bcq
->ibcq
.cq_context
);
896 spin_unlock_irqrestore(&bcq
->comp_handler_lock
, flags
);
900 static void ocrdma_qp_cq_handler(struct ocrdma_dev
*dev
, u16 cq_idx
)
903 struct ocrdma_cq
*cq
;
905 if (cq_idx
>= OCRDMA_MAX_CQ
)
908 cq
= dev
->cq_tbl
[cq_idx
];
912 if (cq
->ibcq
.comp_handler
) {
913 spin_lock_irqsave(&cq
->comp_handler_lock
, flags
);
914 (*cq
->ibcq
.comp_handler
) (&cq
->ibcq
, cq
->ibcq
.cq_context
);
915 spin_unlock_irqrestore(&cq
->comp_handler_lock
, flags
);
917 ocrdma_qp_buddy_cq_handler(dev
, cq
);
920 static void ocrdma_cq_handler(struct ocrdma_dev
*dev
, u16 cq_id
)
922 /* process the MQ-CQE. */
923 if (cq_id
== dev
->mq
.cq
.id
)
924 ocrdma_mq_cq_handler(dev
, cq_id
);
926 ocrdma_qp_cq_handler(dev
, cq_id
);
929 static irqreturn_t
ocrdma_irq_handler(int irq
, void *handle
)
931 struct ocrdma_eq
*eq
= handle
;
932 struct ocrdma_dev
*dev
= eq
->dev
;
933 struct ocrdma_eqe eqe
;
934 struct ocrdma_eqe
*ptr
;
937 int budget
= eq
->cq_cnt
;
940 ptr
= ocrdma_get_eqe(eq
);
942 ocrdma_le32_to_cpu(&eqe
, sizeof(eqe
));
943 mcode
= (eqe
.id_valid
& OCRDMA_EQE_MAJOR_CODE_MASK
)
944 >> OCRDMA_EQE_MAJOR_CODE_SHIFT
;
945 if (mcode
== OCRDMA_MAJOR_CODE_SENTINAL
)
946 pr_err("EQ full on eqid = 0x%x, eqe = 0x%x\n",
947 eq
->q
.id
, eqe
.id_valid
);
948 if ((eqe
.id_valid
& OCRDMA_EQE_VALID_MASK
) == 0)
952 /* ring eq doorbell as soon as its consumed. */
953 ocrdma_ring_eq_db(dev
, eq
->q
.id
, false, true, 1);
954 /* check whether its CQE or not. */
955 if ((eqe
.id_valid
& OCRDMA_EQE_FOR_CQE_MASK
) == 0) {
956 cq_id
= eqe
.id_valid
>> OCRDMA_EQE_RESOURCE_ID_SHIFT
;
957 ocrdma_cq_handler(dev
, cq_id
);
959 ocrdma_eq_inc_tail(eq
);
961 /* There can be a stale EQE after the last bound CQ is
962 * destroyed. EQE valid and budget == 0 implies this.
969 eq
->aic_obj
.eq_intr_cnt
++;
970 ocrdma_ring_eq_db(dev
, eq
->q
.id
, true, true, 0);
974 static void ocrdma_post_mqe(struct ocrdma_dev
*dev
, struct ocrdma_mqe
*cmd
)
976 struct ocrdma_mqe
*mqe
;
978 dev
->mqe_ctx
.tag
= dev
->mq
.sq
.head
;
979 dev
->mqe_ctx
.cmd_done
= false;
980 mqe
= ocrdma_get_mqe(dev
);
981 cmd
->hdr
.tag_lo
= dev
->mq
.sq
.head
;
982 ocrdma_copy_cpu_to_le32(mqe
, cmd
, sizeof(*mqe
));
983 /* make sure descriptor is written before ringing doorbell */
985 ocrdma_mq_inc_head(dev
);
986 ocrdma_ring_mq_db(dev
);
989 static int ocrdma_wait_mqe_cmpl(struct ocrdma_dev
*dev
)
993 status
= wait_event_timeout(dev
->mqe_ctx
.cmd_wait
,
994 (dev
->mqe_ctx
.cmd_done
!= false),
995 msecs_to_jiffies(30000));
999 dev
->mqe_ctx
.fw_error_state
= true;
1000 pr_err("%s(%d) mailbox timeout: fw not responding\n",
1006 /* issue a mailbox command on the MQ */
1007 static int ocrdma_mbx_cmd(struct ocrdma_dev
*dev
, struct ocrdma_mqe
*mqe
)
1010 u16 cqe_status
, ext_status
;
1011 struct ocrdma_mqe
*rsp_mqe
;
1012 struct ocrdma_mbx_rsp
*rsp
= NULL
;
1014 mutex_lock(&dev
->mqe_ctx
.lock
);
1015 if (dev
->mqe_ctx
.fw_error_state
)
1017 ocrdma_post_mqe(dev
, mqe
);
1018 status
= ocrdma_wait_mqe_cmpl(dev
);
1021 cqe_status
= dev
->mqe_ctx
.cqe_status
;
1022 ext_status
= dev
->mqe_ctx
.ext_status
;
1023 rsp_mqe
= ocrdma_get_mqe_rsp(dev
);
1024 ocrdma_copy_le32_to_cpu(mqe
, rsp_mqe
, (sizeof(*mqe
)));
1025 if ((mqe
->hdr
.spcl_sge_cnt_emb
& OCRDMA_MQE_HDR_EMB_MASK
) >>
1026 OCRDMA_MQE_HDR_EMB_SHIFT
)
1029 if (cqe_status
|| ext_status
) {
1030 pr_err("%s() cqe_status=0x%x, ext_status=0x%x,",
1031 __func__
, cqe_status
, ext_status
);
1033 /* This is for embedded cmds. */
1034 pr_err("opcode=0x%x, subsystem=0x%x\n",
1035 (rsp
->subsys_op
& OCRDMA_MBX_RSP_OPCODE_MASK
) >>
1036 OCRDMA_MBX_RSP_OPCODE_SHIFT
,
1037 (rsp
->subsys_op
& OCRDMA_MBX_RSP_SUBSYS_MASK
) >>
1038 OCRDMA_MBX_RSP_SUBSYS_SHIFT
);
1040 status
= ocrdma_get_mbx_cqe_errno(cqe_status
);
1043 /* For non embedded, rsp errors are handled in ocrdma_nonemb_mbx_cmd */
1044 if (rsp
&& (mqe
->u
.rsp
.status
& OCRDMA_MBX_RSP_STATUS_MASK
))
1045 status
= ocrdma_get_mbx_errno(mqe
->u
.rsp
.status
);
1047 mutex_unlock(&dev
->mqe_ctx
.lock
);
1051 static int ocrdma_nonemb_mbx_cmd(struct ocrdma_dev
*dev
, struct ocrdma_mqe
*mqe
,
1055 struct ocrdma_mbx_rsp
*rsp
= payload_va
;
1057 if ((mqe
->hdr
.spcl_sge_cnt_emb
& OCRDMA_MQE_HDR_EMB_MASK
) >>
1058 OCRDMA_MQE_HDR_EMB_SHIFT
)
1061 status
= ocrdma_mbx_cmd(dev
, mqe
);
1063 /* For non embedded, only CQE failures are handled in
1064 * ocrdma_mbx_cmd. We need to check for RSP errors.
1066 if (rsp
->status
& OCRDMA_MBX_RSP_STATUS_MASK
)
1067 status
= ocrdma_get_mbx_errno(rsp
->status
);
1070 pr_err("opcode=0x%x, subsystem=0x%x\n",
1071 (rsp
->subsys_op
& OCRDMA_MBX_RSP_OPCODE_MASK
) >>
1072 OCRDMA_MBX_RSP_OPCODE_SHIFT
,
1073 (rsp
->subsys_op
& OCRDMA_MBX_RSP_SUBSYS_MASK
) >>
1074 OCRDMA_MBX_RSP_SUBSYS_SHIFT
);
1078 static void ocrdma_get_attr(struct ocrdma_dev
*dev
,
1079 struct ocrdma_dev_attr
*attr
,
1080 struct ocrdma_mbx_query_config
*rsp
)
1083 (rsp
->max_pd_ca_ack_delay
& OCRDMA_MBX_QUERY_CFG_MAX_PD_MASK
) >>
1084 OCRDMA_MBX_QUERY_CFG_MAX_PD_SHIFT
;
1086 (rsp
->max_dpp_pds_credits
& OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_MASK
) >>
1087 OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_OFFSET
;
1089 (rsp
->qp_srq_cq_ird_ord
& OCRDMA_MBX_QUERY_CFG_MAX_QP_MASK
) >>
1090 OCRDMA_MBX_QUERY_CFG_MAX_QP_SHIFT
;
1092 (rsp
->max_srq_rpir_qps
& OCRDMA_MBX_QUERY_CFG_MAX_SRQ_MASK
) >>
1093 OCRDMA_MBX_QUERY_CFG_MAX_SRQ_OFFSET
;
1094 attr
->max_send_sge
= ((rsp
->max_write_send_sge
&
1095 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK
) >>
1096 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT
);
1097 attr
->max_recv_sge
= (rsp
->max_write_send_sge
&
1098 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK
) >>
1099 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT
;
1100 attr
->max_srq_sge
= (rsp
->max_srq_rqe_sge
&
1101 OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_MASK
) >>
1102 OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_OFFSET
;
1103 attr
->max_rdma_sge
= (rsp
->max_write_send_sge
&
1104 OCRDMA_MBX_QUERY_CFG_MAX_WRITE_SGE_MASK
) >>
1105 OCRDMA_MBX_QUERY_CFG_MAX_WRITE_SGE_SHIFT
;
1106 attr
->max_ord_per_qp
= (rsp
->max_ird_ord_per_qp
&
1107 OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_MASK
) >>
1108 OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_SHIFT
;
1109 attr
->max_ird_per_qp
= (rsp
->max_ird_ord_per_qp
&
1110 OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_MASK
) >>
1111 OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_SHIFT
;
1112 attr
->cq_overflow_detect
= (rsp
->qp_srq_cq_ird_ord
&
1113 OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_MASK
) >>
1114 OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_SHIFT
;
1115 attr
->srq_supported
= (rsp
->qp_srq_cq_ird_ord
&
1116 OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_MASK
) >>
1117 OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_SHIFT
;
1118 attr
->local_ca_ack_delay
= (rsp
->max_pd_ca_ack_delay
&
1119 OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_MASK
) >>
1120 OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_SHIFT
;
1121 attr
->max_mw
= rsp
->max_mw
;
1122 attr
->max_mr
= rsp
->max_mr
;
1123 attr
->max_mr_size
= ((u64
)rsp
->max_mr_size_hi
<< 32) |
1124 rsp
->max_mr_size_lo
;
1126 attr
->max_pages_per_frmr
= rsp
->max_pages_per_frmr
;
1127 attr
->max_num_mr_pbl
= rsp
->max_num_mr_pbl
;
1128 attr
->max_cqe
= rsp
->max_cq_cqes_per_cq
&
1129 OCRDMA_MBX_QUERY_CFG_MAX_CQES_PER_CQ_MASK
;
1130 attr
->max_cq
= (rsp
->max_cq_cqes_per_cq
&
1131 OCRDMA_MBX_QUERY_CFG_MAX_CQ_MASK
) >>
1132 OCRDMA_MBX_QUERY_CFG_MAX_CQ_OFFSET
;
1133 attr
->wqe_size
= ((rsp
->wqe_rqe_stride_max_dpp_cqs
&
1134 OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_MASK
) >>
1135 OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_OFFSET
) *
1137 attr
->rqe_size
= ((rsp
->wqe_rqe_stride_max_dpp_cqs
&
1138 OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_MASK
) >>
1139 OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_OFFSET
) *
1141 attr
->max_inline_data
=
1142 attr
->wqe_size
- (sizeof(struct ocrdma_hdr_wqe
) +
1143 sizeof(struct ocrdma_sge
));
1144 if (ocrdma_get_asic_type(dev
) == OCRDMA_ASIC_GEN_SKH_R
) {
1146 attr
->ird_page_size
= OCRDMA_MIN_Q_PAGE_SIZE
;
1147 attr
->num_ird_pages
= MAX_OCRDMA_IRD_PAGES
;
1149 dev
->attr
.max_wqe
= rsp
->max_wqes_rqes_per_q
>>
1150 OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET
;
1151 dev
->attr
.max_rqe
= rsp
->max_wqes_rqes_per_q
&
1152 OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_MASK
;
1155 static int ocrdma_check_fw_config(struct ocrdma_dev
*dev
,
1156 struct ocrdma_fw_conf_rsp
*conf
)
1160 fn_mode
= conf
->fn_mode
& OCRDMA_FN_MODE_RDMA
;
1161 if (fn_mode
!= OCRDMA_FN_MODE_RDMA
)
1163 dev
->base_eqid
= conf
->base_eqid
;
1164 dev
->max_eq
= conf
->max_eq
;
1168 /* can be issued only during init time. */
1169 static int ocrdma_mbx_query_fw_ver(struct ocrdma_dev
*dev
)
1171 int status
= -ENOMEM
;
1172 struct ocrdma_mqe
*cmd
;
1173 struct ocrdma_fw_ver_rsp
*rsp
;
1175 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_VER
, sizeof(*cmd
));
1178 ocrdma_init_mch((struct ocrdma_mbx_hdr
*)&cmd
->u
.cmd
[0],
1179 OCRDMA_CMD_GET_FW_VER
,
1180 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
1182 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1185 rsp
= (struct ocrdma_fw_ver_rsp
*)cmd
;
1186 memset(&dev
->attr
.fw_ver
[0], 0, sizeof(dev
->attr
.fw_ver
));
1187 memcpy(&dev
->attr
.fw_ver
[0], &rsp
->running_ver
[0],
1188 sizeof(rsp
->running_ver
));
1189 ocrdma_le32_to_cpu(dev
->attr
.fw_ver
, sizeof(rsp
->running_ver
));
1195 /* can be issued only during init time. */
1196 static int ocrdma_mbx_query_fw_config(struct ocrdma_dev
*dev
)
1198 int status
= -ENOMEM
;
1199 struct ocrdma_mqe
*cmd
;
1200 struct ocrdma_fw_conf_rsp
*rsp
;
1202 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_CONFIG
, sizeof(*cmd
));
1205 ocrdma_init_mch((struct ocrdma_mbx_hdr
*)&cmd
->u
.cmd
[0],
1206 OCRDMA_CMD_GET_FW_CONFIG
,
1207 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
1208 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1211 rsp
= (struct ocrdma_fw_conf_rsp
*)cmd
;
1212 status
= ocrdma_check_fw_config(dev
, rsp
);
1218 int ocrdma_mbx_rdma_stats(struct ocrdma_dev
*dev
, bool reset
)
1220 struct ocrdma_rdma_stats_req
*req
= dev
->stats_mem
.va
;
1221 struct ocrdma_mqe
*mqe
= &dev
->stats_mem
.mqe
;
1222 struct ocrdma_rdma_stats_resp
*old_stats
;
1225 old_stats
= kmalloc(sizeof(*old_stats
), GFP_KERNEL
);
1226 if (old_stats
== NULL
)
1229 memset(mqe
, 0, sizeof(*mqe
));
1230 mqe
->hdr
.pyld_len
= dev
->stats_mem
.size
;
1231 mqe
->hdr
.spcl_sge_cnt_emb
|=
1232 (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT
) &
1233 OCRDMA_MQE_HDR_SGE_CNT_MASK
;
1234 mqe
->u
.nonemb_req
.sge
[0].pa_lo
= (u32
) (dev
->stats_mem
.pa
& 0xffffffff);
1235 mqe
->u
.nonemb_req
.sge
[0].pa_hi
= (u32
) upper_32_bits(dev
->stats_mem
.pa
);
1236 mqe
->u
.nonemb_req
.sge
[0].len
= dev
->stats_mem
.size
;
1238 /* Cache the old stats */
1239 memcpy(old_stats
, req
, sizeof(struct ocrdma_rdma_stats_resp
));
1240 memset(req
, 0, dev
->stats_mem
.size
);
1242 ocrdma_init_mch((struct ocrdma_mbx_hdr
*)req
,
1243 OCRDMA_CMD_GET_RDMA_STATS
,
1245 dev
->stats_mem
.size
);
1247 req
->reset_stats
= reset
;
1249 status
= ocrdma_nonemb_mbx_cmd(dev
, mqe
, dev
->stats_mem
.va
);
1251 /* Copy from cache, if mbox fails */
1252 memcpy(req
, old_stats
, sizeof(struct ocrdma_rdma_stats_resp
));
1254 ocrdma_le32_to_cpu(req
, dev
->stats_mem
.size
);
1260 static int ocrdma_mbx_get_ctrl_attribs(struct ocrdma_dev
*dev
)
1262 int status
= -ENOMEM
;
1263 struct ocrdma_dma_mem dma
;
1264 struct ocrdma_mqe
*mqe
;
1265 struct ocrdma_get_ctrl_attribs_rsp
*ctrl_attr_rsp
;
1266 struct mgmt_hba_attribs
*hba_attribs
;
1268 mqe
= kzalloc(sizeof(struct ocrdma_mqe
), GFP_KERNEL
);
1272 dma
.size
= sizeof(struct ocrdma_get_ctrl_attribs_rsp
);
1273 dma
.va
= dma_alloc_coherent(&dev
->nic_info
.pdev
->dev
,
1274 dma
.size
, &dma
.pa
, GFP_KERNEL
);
1278 mqe
->hdr
.pyld_len
= dma
.size
;
1279 mqe
->hdr
.spcl_sge_cnt_emb
|=
1280 (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT
) &
1281 OCRDMA_MQE_HDR_SGE_CNT_MASK
;
1282 mqe
->u
.nonemb_req
.sge
[0].pa_lo
= (u32
) (dma
.pa
& 0xffffffff);
1283 mqe
->u
.nonemb_req
.sge
[0].pa_hi
= (u32
) upper_32_bits(dma
.pa
);
1284 mqe
->u
.nonemb_req
.sge
[0].len
= dma
.size
;
1286 memset(dma
.va
, 0, dma
.size
);
1287 ocrdma_init_mch((struct ocrdma_mbx_hdr
*)dma
.va
,
1288 OCRDMA_CMD_GET_CTRL_ATTRIBUTES
,
1289 OCRDMA_SUBSYS_COMMON
,
1292 status
= ocrdma_nonemb_mbx_cmd(dev
, mqe
, dma
.va
);
1294 ctrl_attr_rsp
= (struct ocrdma_get_ctrl_attribs_rsp
*)dma
.va
;
1295 hba_attribs
= &ctrl_attr_rsp
->ctrl_attribs
.hba_attribs
;
1297 dev
->hba_port_num
= (hba_attribs
->ptpnum_maxdoms_hbast_cv
&
1298 OCRDMA_HBA_ATTRB_PTNUM_MASK
)
1299 >> OCRDMA_HBA_ATTRB_PTNUM_SHIFT
;
1300 strncpy(dev
->model_number
,
1301 hba_attribs
->controller_model_number
, 31);
1303 dma_free_coherent(&dev
->nic_info
.pdev
->dev
, dma
.size
, dma
.va
, dma
.pa
);
1309 static int ocrdma_mbx_query_dev(struct ocrdma_dev
*dev
)
1311 int status
= -ENOMEM
;
1312 struct ocrdma_mbx_query_config
*rsp
;
1313 struct ocrdma_mqe
*cmd
;
1315 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_CONFIG
, sizeof(*cmd
));
1318 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1321 rsp
= (struct ocrdma_mbx_query_config
*)cmd
;
1322 ocrdma_get_attr(dev
, &dev
->attr
, rsp
);
1328 int ocrdma_mbx_get_link_speed(struct ocrdma_dev
*dev
, u8
*lnk_speed
)
1330 int status
= -ENOMEM
;
1331 struct ocrdma_get_link_speed_rsp
*rsp
;
1332 struct ocrdma_mqe
*cmd
;
1334 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_NTWK_LINK_CONFIG_V1
,
1338 ocrdma_init_mch((struct ocrdma_mbx_hdr
*)&cmd
->u
.cmd
[0],
1339 OCRDMA_CMD_QUERY_NTWK_LINK_CONFIG_V1
,
1340 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
1342 ((struct ocrdma_mbx_hdr
*)cmd
->u
.cmd
)->rsvd_version
= 0x1;
1344 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1348 rsp
= (struct ocrdma_get_link_speed_rsp
*)cmd
;
1349 *lnk_speed
= (rsp
->pflt_pps_ld_pnum
& OCRDMA_PHY_PS_MASK
)
1350 >> OCRDMA_PHY_PS_SHIFT
;
1357 static int ocrdma_mbx_get_phy_info(struct ocrdma_dev
*dev
)
1359 int status
= -ENOMEM
;
1360 struct ocrdma_mqe
*cmd
;
1361 struct ocrdma_get_phy_info_rsp
*rsp
;
1363 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_PHY_DETAILS
, sizeof(*cmd
));
1367 ocrdma_init_mch((struct ocrdma_mbx_hdr
*)&cmd
->u
.cmd
[0],
1368 OCRDMA_CMD_PHY_DETAILS
, OCRDMA_SUBSYS_COMMON
,
1371 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1375 rsp
= (struct ocrdma_get_phy_info_rsp
*)cmd
;
1377 (rsp
->ityp_ptyp
& OCRDMA_PHY_TYPE_MASK
);
1378 dev
->phy
.interface_type
=
1379 (rsp
->ityp_ptyp
& OCRDMA_IF_TYPE_MASK
)
1380 >> OCRDMA_IF_TYPE_SHIFT
;
1381 dev
->phy
.auto_speeds_supported
=
1382 (rsp
->fspeed_aspeed
& OCRDMA_ASPEED_SUPP_MASK
);
1383 dev
->phy
.fixed_speeds_supported
=
1384 (rsp
->fspeed_aspeed
& OCRDMA_FSPEED_SUPP_MASK
)
1385 >> OCRDMA_FSPEED_SUPP_SHIFT
;
1391 int ocrdma_mbx_alloc_pd(struct ocrdma_dev
*dev
, struct ocrdma_pd
*pd
)
1393 int status
= -ENOMEM
;
1394 struct ocrdma_alloc_pd
*cmd
;
1395 struct ocrdma_alloc_pd_rsp
*rsp
;
1397 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD
, sizeof(*cmd
));
1400 if (pd
->dpp_enabled
)
1401 cmd
->enable_dpp_rsvd
|= OCRDMA_ALLOC_PD_ENABLE_DPP
;
1402 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1405 rsp
= (struct ocrdma_alloc_pd_rsp
*)cmd
;
1406 pd
->id
= rsp
->dpp_page_pdid
& OCRDMA_ALLOC_PD_RSP_PDID_MASK
;
1407 if (rsp
->dpp_page_pdid
& OCRDMA_ALLOC_PD_RSP_DPP
) {
1408 pd
->dpp_enabled
= true;
1409 pd
->dpp_page
= rsp
->dpp_page_pdid
>>
1410 OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT
;
1412 pd
->dpp_enabled
= false;
1420 int ocrdma_mbx_dealloc_pd(struct ocrdma_dev
*dev
, struct ocrdma_pd
*pd
)
1422 int status
= -ENOMEM
;
1423 struct ocrdma_dealloc_pd
*cmd
;
1425 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD
, sizeof(*cmd
));
1429 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1435 static int ocrdma_mbx_alloc_pd_range(struct ocrdma_dev
*dev
)
1437 int status
= -ENOMEM
;
1438 size_t pd_bitmap_size
;
1439 struct ocrdma_alloc_pd_range
*cmd
;
1440 struct ocrdma_alloc_pd_range_rsp
*rsp
;
1442 /* Pre allocate the DPP PDs */
1443 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD_RANGE
, sizeof(*cmd
));
1446 cmd
->pd_count
= dev
->attr
.max_dpp_pds
;
1447 cmd
->enable_dpp_rsvd
|= OCRDMA_ALLOC_PD_ENABLE_DPP
;
1448 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1451 rsp
= (struct ocrdma_alloc_pd_range_rsp
*)cmd
;
1453 if ((rsp
->dpp_page_pdid
& OCRDMA_ALLOC_PD_RSP_DPP
) && rsp
->pd_count
) {
1454 dev
->pd_mgr
->dpp_page_index
= rsp
->dpp_page_pdid
>>
1455 OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT
;
1456 dev
->pd_mgr
->pd_dpp_start
= rsp
->dpp_page_pdid
&
1457 OCRDMA_ALLOC_PD_RNG_RSP_START_PDID_MASK
;
1458 dev
->pd_mgr
->max_dpp_pd
= rsp
->pd_count
;
1459 pd_bitmap_size
= BITS_TO_LONGS(rsp
->pd_count
) * sizeof(long);
1460 dev
->pd_mgr
->pd_dpp_bitmap
= kzalloc(pd_bitmap_size
,
1465 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD_RANGE
, sizeof(*cmd
));
1469 cmd
->pd_count
= dev
->attr
.max_pd
- dev
->attr
.max_dpp_pds
;
1470 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1473 rsp
= (struct ocrdma_alloc_pd_range_rsp
*)cmd
;
1474 if (rsp
->pd_count
) {
1475 dev
->pd_mgr
->pd_norm_start
= rsp
->dpp_page_pdid
&
1476 OCRDMA_ALLOC_PD_RNG_RSP_START_PDID_MASK
;
1477 dev
->pd_mgr
->max_normal_pd
= rsp
->pd_count
;
1478 pd_bitmap_size
= BITS_TO_LONGS(rsp
->pd_count
) * sizeof(long);
1479 dev
->pd_mgr
->pd_norm_bitmap
= kzalloc(pd_bitmap_size
,
1483 if (dev
->pd_mgr
->pd_norm_bitmap
|| dev
->pd_mgr
->pd_dpp_bitmap
) {
1484 /* Enable PD resource manager */
1485 dev
->pd_mgr
->pd_prealloc_valid
= true;
1494 static void ocrdma_mbx_dealloc_pd_range(struct ocrdma_dev
*dev
)
1496 struct ocrdma_dealloc_pd_range
*cmd
;
1498 /* return normal PDs to firmware */
1499 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD_RANGE
, sizeof(*cmd
));
1503 if (dev
->pd_mgr
->max_normal_pd
) {
1504 cmd
->start_pd_id
= dev
->pd_mgr
->pd_norm_start
;
1505 cmd
->pd_count
= dev
->pd_mgr
->max_normal_pd
;
1506 ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1509 if (dev
->pd_mgr
->max_dpp_pd
) {
1511 /* return DPP PDs to firmware */
1512 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD_RANGE
,
1517 cmd
->start_pd_id
= dev
->pd_mgr
->pd_dpp_start
;
1518 cmd
->pd_count
= dev
->pd_mgr
->max_dpp_pd
;
1519 ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1525 void ocrdma_alloc_pd_pool(struct ocrdma_dev
*dev
)
1529 dev
->pd_mgr
= kzalloc(sizeof(struct ocrdma_pd_resource_mgr
),
1532 pr_err("%s(%d)Memory allocation failure.\n", __func__
, dev
->id
);
1535 status
= ocrdma_mbx_alloc_pd_range(dev
);
1537 pr_err("%s(%d) Unable to initialize PD pool, using default.\n",
1542 static void ocrdma_free_pd_pool(struct ocrdma_dev
*dev
)
1544 ocrdma_mbx_dealloc_pd_range(dev
);
1545 kfree(dev
->pd_mgr
->pd_norm_bitmap
);
1546 kfree(dev
->pd_mgr
->pd_dpp_bitmap
);
1550 static int ocrdma_build_q_conf(u32
*num_entries
, int entry_size
,
1551 int *num_pages
, int *page_size
)
1556 *num_entries
= roundup_pow_of_two(*num_entries
);
1557 mem_size
= *num_entries
* entry_size
;
1558 /* find the possible lowest possible multiplier */
1559 for (i
= 0; i
< OCRDMA_MAX_Q_PAGE_SIZE_CNT
; i
++) {
1560 if (mem_size
<= (OCRDMA_Q_PAGE_BASE_SIZE
<< i
))
1563 if (i
>= OCRDMA_MAX_Q_PAGE_SIZE_CNT
)
1565 mem_size
= roundup(mem_size
,
1566 ((OCRDMA_Q_PAGE_BASE_SIZE
<< i
) / OCRDMA_MAX_Q_PAGES
));
1568 mem_size
/ ((OCRDMA_Q_PAGE_BASE_SIZE
<< i
) / OCRDMA_MAX_Q_PAGES
);
1569 *page_size
= ((OCRDMA_Q_PAGE_BASE_SIZE
<< i
) / OCRDMA_MAX_Q_PAGES
);
1570 *num_entries
= mem_size
/ entry_size
;
1574 static int ocrdma_mbx_create_ah_tbl(struct ocrdma_dev
*dev
)
1579 struct ocrdma_create_ah_tbl
*cmd
;
1580 struct ocrdma_create_ah_tbl_rsp
*rsp
;
1581 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
1583 struct ocrdma_pbe
*pbes
;
1585 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_AH_TBL
, sizeof(*cmd
));
1589 max_ah
= OCRDMA_MAX_AH
;
1590 dev
->av_tbl
.size
= sizeof(struct ocrdma_av
) * max_ah
;
1592 /* number of PBEs in PBL */
1593 cmd
->ah_conf
= (OCRDMA_AH_TBL_PAGES
<<
1594 OCRDMA_CREATE_AH_NUM_PAGES_SHIFT
) &
1595 OCRDMA_CREATE_AH_NUM_PAGES_MASK
;
1598 for (i
= 0; i
< OCRDMA_MAX_Q_PAGE_SIZE_CNT
; i
++) {
1599 if (PAGE_SIZE
== (OCRDMA_MIN_Q_PAGE_SIZE
<< i
))
1602 cmd
->ah_conf
|= (i
<< OCRDMA_CREATE_AH_PAGE_SIZE_SHIFT
) &
1603 OCRDMA_CREATE_AH_PAGE_SIZE_MASK
;
1606 cmd
->ah_conf
|= (sizeof(struct ocrdma_av
) <<
1607 OCRDMA_CREATE_AH_ENTRY_SIZE_SHIFT
) &
1608 OCRDMA_CREATE_AH_ENTRY_SIZE_MASK
;
1610 dev
->av_tbl
.pbl
.va
= dma_alloc_coherent(&pdev
->dev
, PAGE_SIZE
,
1611 &dev
->av_tbl
.pbl
.pa
,
1613 if (dev
->av_tbl
.pbl
.va
== NULL
)
1616 dev
->av_tbl
.va
= dma_alloc_coherent(&pdev
->dev
, dev
->av_tbl
.size
,
1618 if (dev
->av_tbl
.va
== NULL
)
1620 dev
->av_tbl
.pa
= pa
;
1621 dev
->av_tbl
.num_ah
= max_ah
;
1622 memset(dev
->av_tbl
.va
, 0, dev
->av_tbl
.size
);
1624 pbes
= (struct ocrdma_pbe
*)dev
->av_tbl
.pbl
.va
;
1625 for (i
= 0; i
< dev
->av_tbl
.size
/ OCRDMA_MIN_Q_PAGE_SIZE
; i
++) {
1626 pbes
[i
].pa_lo
= (u32
)cpu_to_le32(pa
& 0xffffffff);
1627 pbes
[i
].pa_hi
= (u32
)cpu_to_le32(upper_32_bits(pa
));
1630 cmd
->tbl_addr
[0].lo
= (u32
)(dev
->av_tbl
.pbl
.pa
& 0xFFFFFFFF);
1631 cmd
->tbl_addr
[0].hi
= (u32
)upper_32_bits(dev
->av_tbl
.pbl
.pa
);
1632 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1635 rsp
= (struct ocrdma_create_ah_tbl_rsp
*)cmd
;
1636 dev
->av_tbl
.ahid
= rsp
->ahid
& 0xFFFF;
1641 dma_free_coherent(&pdev
->dev
, dev
->av_tbl
.size
, dev
->av_tbl
.va
,
1643 dev
->av_tbl
.va
= NULL
;
1645 dma_free_coherent(&pdev
->dev
, PAGE_SIZE
, dev
->av_tbl
.pbl
.va
,
1646 dev
->av_tbl
.pbl
.pa
);
1647 dev
->av_tbl
.pbl
.va
= NULL
;
1648 dev
->av_tbl
.size
= 0;
1654 static void ocrdma_mbx_delete_ah_tbl(struct ocrdma_dev
*dev
)
1656 struct ocrdma_delete_ah_tbl
*cmd
;
1657 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
1659 if (dev
->av_tbl
.va
== NULL
)
1662 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_AH_TBL
, sizeof(*cmd
));
1665 cmd
->ahid
= dev
->av_tbl
.ahid
;
1667 ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1668 dma_free_coherent(&pdev
->dev
, dev
->av_tbl
.size
, dev
->av_tbl
.va
,
1670 dev
->av_tbl
.va
= NULL
;
1671 dma_free_coherent(&pdev
->dev
, PAGE_SIZE
, dev
->av_tbl
.pbl
.va
,
1672 dev
->av_tbl
.pbl
.pa
);
1676 /* Multiple CQs uses the EQ. This routine returns least used
1677 * EQ to associate with CQ. This will distributes the interrupt
1678 * processing and CPU load to associated EQ, vector and so to that CPU.
1680 static u16
ocrdma_bind_eq(struct ocrdma_dev
*dev
)
1682 int i
, selected_eq
= 0, cq_cnt
= 0;
1685 mutex_lock(&dev
->dev_lock
);
1686 cq_cnt
= dev
->eq_tbl
[0].cq_cnt
;
1687 eq_id
= dev
->eq_tbl
[0].q
.id
;
1688 /* find the EQ which is has the least number of
1689 * CQs associated with it.
1691 for (i
= 0; i
< dev
->eq_cnt
; i
++) {
1692 if (dev
->eq_tbl
[i
].cq_cnt
< cq_cnt
) {
1693 cq_cnt
= dev
->eq_tbl
[i
].cq_cnt
;
1694 eq_id
= dev
->eq_tbl
[i
].q
.id
;
1698 dev
->eq_tbl
[selected_eq
].cq_cnt
+= 1;
1699 mutex_unlock(&dev
->dev_lock
);
1703 static void ocrdma_unbind_eq(struct ocrdma_dev
*dev
, u16 eq_id
)
1707 mutex_lock(&dev
->dev_lock
);
1708 i
= ocrdma_get_eq_table_index(dev
, eq_id
);
1711 dev
->eq_tbl
[i
].cq_cnt
-= 1;
1712 mutex_unlock(&dev
->dev_lock
);
1715 int ocrdma_mbx_create_cq(struct ocrdma_dev
*dev
, struct ocrdma_cq
*cq
,
1716 int entries
, int dpp_cq
, u16 pd_id
)
1718 int status
= -ENOMEM
; int max_hw_cqe
;
1719 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
1720 struct ocrdma_create_cq
*cmd
;
1721 struct ocrdma_create_cq_rsp
*rsp
;
1722 u32 hw_pages
, cqe_size
, page_size
, cqe_count
;
1724 if (entries
> dev
->attr
.max_cqe
) {
1725 pr_err("%s(%d) max_cqe=0x%x, requester_cqe=0x%x\n",
1726 __func__
, dev
->id
, dev
->attr
.max_cqe
, entries
);
1729 if (dpp_cq
&& (ocrdma_get_asic_type(dev
) != OCRDMA_ASIC_GEN_SKH_R
))
1735 cqe_size
= OCRDMA_DPP_CQE_SIZE
;
1738 cq
->max_hw_cqe
= dev
->attr
.max_cqe
;
1739 max_hw_cqe
= dev
->attr
.max_cqe
;
1740 cqe_size
= sizeof(struct ocrdma_cqe
);
1741 hw_pages
= OCRDMA_CREATE_CQ_MAX_PAGES
;
1744 cq
->len
= roundup(max_hw_cqe
* cqe_size
, OCRDMA_MIN_Q_PAGE_SIZE
);
1746 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_CQ
, sizeof(*cmd
));
1749 ocrdma_init_mch(&cmd
->cmd
.req
, OCRDMA_CMD_CREATE_CQ
,
1750 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
1751 cq
->va
= dma_alloc_coherent(&pdev
->dev
, cq
->len
, &cq
->pa
, GFP_KERNEL
);
1756 memset(cq
->va
, 0, cq
->len
);
1757 page_size
= cq
->len
/ hw_pages
;
1758 cmd
->cmd
.pgsz_pgcnt
= (page_size
/ OCRDMA_MIN_Q_PAGE_SIZE
) <<
1759 OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT
;
1760 cmd
->cmd
.pgsz_pgcnt
|= hw_pages
;
1761 cmd
->cmd
.ev_cnt_flags
= OCRDMA_CREATE_CQ_DEF_FLAGS
;
1763 cq
->eqn
= ocrdma_bind_eq(dev
);
1764 cmd
->cmd
.req
.rsvd_version
= OCRDMA_CREATE_CQ_VER3
;
1765 cqe_count
= cq
->len
/ cqe_size
;
1766 cq
->cqe_cnt
= cqe_count
;
1767 if (cqe_count
> 1024) {
1768 /* Set cnt to 3 to indicate more than 1024 cq entries */
1769 cmd
->cmd
.ev_cnt_flags
|= (0x3 << OCRDMA_CREATE_CQ_CNT_SHIFT
);
1772 switch (cqe_count
) {
1785 cmd
->cmd
.ev_cnt_flags
|= (count
<< OCRDMA_CREATE_CQ_CNT_SHIFT
);
1787 /* shared eq between all the consumer cqs. */
1788 cmd
->cmd
.eqn
= cq
->eqn
;
1789 if (ocrdma_get_asic_type(dev
) == OCRDMA_ASIC_GEN_SKH_R
) {
1791 cmd
->cmd
.pgsz_pgcnt
|= OCRDMA_CREATE_CQ_DPP
<<
1792 OCRDMA_CREATE_CQ_TYPE_SHIFT
;
1793 cq
->phase_change
= false;
1794 cmd
->cmd
.pdid_cqecnt
= (cq
->len
/ cqe_size
);
1796 cmd
->cmd
.pdid_cqecnt
= (cq
->len
/ cqe_size
) - 1;
1797 cmd
->cmd
.ev_cnt_flags
|= OCRDMA_CREATE_CQ_FLAGS_AUTO_VALID
;
1798 cq
->phase_change
= true;
1801 /* pd_id valid only for v3 */
1802 cmd
->cmd
.pdid_cqecnt
|= (pd_id
<<
1803 OCRDMA_CREATE_CQ_CMD_PDID_SHIFT
);
1804 ocrdma_build_q_pages(&cmd
->cmd
.pa
[0], hw_pages
, cq
->pa
, page_size
);
1805 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1809 rsp
= (struct ocrdma_create_cq_rsp
*)cmd
;
1810 cq
->id
= (u16
) (rsp
->rsp
.cq_id
& OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK
);
1814 ocrdma_unbind_eq(dev
, cq
->eqn
);
1815 dma_free_coherent(&pdev
->dev
, cq
->len
, cq
->va
, cq
->pa
);
1821 int ocrdma_mbx_destroy_cq(struct ocrdma_dev
*dev
, struct ocrdma_cq
*cq
)
1823 int status
= -ENOMEM
;
1824 struct ocrdma_destroy_cq
*cmd
;
1826 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_CQ
, sizeof(*cmd
));
1829 ocrdma_init_mch(&cmd
->req
, OCRDMA_CMD_DELETE_CQ
,
1830 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
1832 cmd
->bypass_flush_qid
|=
1833 (cq
->id
<< OCRDMA_DESTROY_CQ_QID_SHIFT
) &
1834 OCRDMA_DESTROY_CQ_QID_MASK
;
1836 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1837 ocrdma_unbind_eq(dev
, cq
->eqn
);
1838 dma_free_coherent(&dev
->nic_info
.pdev
->dev
, cq
->len
, cq
->va
, cq
->pa
);
1843 int ocrdma_mbx_alloc_lkey(struct ocrdma_dev
*dev
, struct ocrdma_hw_mr
*hwmr
,
1844 u32 pdid
, int addr_check
)
1846 int status
= -ENOMEM
;
1847 struct ocrdma_alloc_lkey
*cmd
;
1848 struct ocrdma_alloc_lkey_rsp
*rsp
;
1850 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_LKEY
, sizeof(*cmd
));
1854 cmd
->pbl_sz_flags
|= addr_check
;
1855 cmd
->pbl_sz_flags
|= (hwmr
->fr_mr
<< OCRDMA_ALLOC_LKEY_FMR_SHIFT
);
1856 cmd
->pbl_sz_flags
|=
1857 (hwmr
->remote_wr
<< OCRDMA_ALLOC_LKEY_REMOTE_WR_SHIFT
);
1858 cmd
->pbl_sz_flags
|=
1859 (hwmr
->remote_rd
<< OCRDMA_ALLOC_LKEY_REMOTE_RD_SHIFT
);
1860 cmd
->pbl_sz_flags
|=
1861 (hwmr
->local_wr
<< OCRDMA_ALLOC_LKEY_LOCAL_WR_SHIFT
);
1862 cmd
->pbl_sz_flags
|=
1863 (hwmr
->remote_atomic
<< OCRDMA_ALLOC_LKEY_REMOTE_ATOMIC_SHIFT
);
1864 cmd
->pbl_sz_flags
|=
1865 (hwmr
->num_pbls
<< OCRDMA_ALLOC_LKEY_PBL_SIZE_SHIFT
);
1867 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1870 rsp
= (struct ocrdma_alloc_lkey_rsp
*)cmd
;
1871 hwmr
->lkey
= rsp
->lrkey
;
1877 int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev
*dev
, int fr_mr
, u32 lkey
)
1879 int status
= -ENOMEM
;
1880 struct ocrdma_dealloc_lkey
*cmd
;
1882 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_LKEY
, sizeof(*cmd
));
1886 cmd
->rsvd_frmr
= fr_mr
? 1 : 0;
1887 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1895 static int ocrdma_mbx_reg_mr(struct ocrdma_dev
*dev
, struct ocrdma_hw_mr
*hwmr
,
1896 u32 pdid
, u32 pbl_cnt
, u32 pbe_size
, u32 last
)
1898 int status
= -ENOMEM
;
1900 struct ocrdma_reg_nsmr
*cmd
;
1901 struct ocrdma_reg_nsmr_rsp
*rsp
;
1903 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR
, sizeof(*cmd
));
1907 pdid
| (hwmr
->num_pbls
<< OCRDMA_REG_NSMR_NUM_PBL_SHIFT
);
1908 cmd
->fr_mr
= hwmr
->fr_mr
;
1910 cmd
->flags_hpage_pbe_sz
|= (hwmr
->remote_wr
<<
1911 OCRDMA_REG_NSMR_REMOTE_WR_SHIFT
);
1912 cmd
->flags_hpage_pbe_sz
|= (hwmr
->remote_rd
<<
1913 OCRDMA_REG_NSMR_REMOTE_RD_SHIFT
);
1914 cmd
->flags_hpage_pbe_sz
|= (hwmr
->local_wr
<<
1915 OCRDMA_REG_NSMR_LOCAL_WR_SHIFT
);
1916 cmd
->flags_hpage_pbe_sz
|= (hwmr
->remote_atomic
<<
1917 OCRDMA_REG_NSMR_REMOTE_ATOMIC_SHIFT
);
1918 cmd
->flags_hpage_pbe_sz
|= (hwmr
->mw_bind
<<
1919 OCRDMA_REG_NSMR_BIND_MEMWIN_SHIFT
);
1920 cmd
->flags_hpage_pbe_sz
|= (last
<< OCRDMA_REG_NSMR_LAST_SHIFT
);
1922 cmd
->flags_hpage_pbe_sz
|= (hwmr
->pbe_size
/ OCRDMA_MIN_HPAGE_SIZE
);
1923 cmd
->flags_hpage_pbe_sz
|= (hwmr
->pbl_size
/ OCRDMA_MIN_HPAGE_SIZE
) <<
1924 OCRDMA_REG_NSMR_HPAGE_SIZE_SHIFT
;
1925 cmd
->totlen_low
= hwmr
->len
;
1926 cmd
->totlen_high
= upper_32_bits(hwmr
->len
);
1927 cmd
->fbo_low
= (u32
) (hwmr
->fbo
& 0xffffffff);
1928 cmd
->fbo_high
= (u32
) upper_32_bits(hwmr
->fbo
);
1929 cmd
->va_loaddr
= (u32
) hwmr
->va
;
1930 cmd
->va_hiaddr
= (u32
) upper_32_bits(hwmr
->va
);
1932 for (i
= 0; i
< pbl_cnt
; i
++) {
1933 cmd
->pbl
[i
].lo
= (u32
) (hwmr
->pbl_table
[i
].pa
& 0xffffffff);
1934 cmd
->pbl
[i
].hi
= upper_32_bits(hwmr
->pbl_table
[i
].pa
);
1936 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1939 rsp
= (struct ocrdma_reg_nsmr_rsp
*)cmd
;
1940 hwmr
->lkey
= rsp
->lrkey
;
1946 static int ocrdma_mbx_reg_mr_cont(struct ocrdma_dev
*dev
,
1947 struct ocrdma_hw_mr
*hwmr
, u32 pbl_cnt
,
1948 u32 pbl_offset
, u32 last
)
1950 int status
= -ENOMEM
;
1952 struct ocrdma_reg_nsmr_cont
*cmd
;
1954 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR_CONT
, sizeof(*cmd
));
1957 cmd
->lrkey
= hwmr
->lkey
;
1958 cmd
->num_pbl_offset
= (pbl_cnt
<< OCRDMA_REG_NSMR_CONT_NUM_PBL_SHIFT
) |
1959 (pbl_offset
& OCRDMA_REG_NSMR_CONT_PBL_SHIFT_MASK
);
1960 cmd
->last
= last
<< OCRDMA_REG_NSMR_CONT_LAST_SHIFT
;
1962 for (i
= 0; i
< pbl_cnt
; i
++) {
1964 (u32
) (hwmr
->pbl_table
[i
+ pbl_offset
].pa
& 0xffffffff);
1966 upper_32_bits(hwmr
->pbl_table
[i
+ pbl_offset
].pa
);
1968 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
1976 int ocrdma_reg_mr(struct ocrdma_dev
*dev
,
1977 struct ocrdma_hw_mr
*hwmr
, u32 pdid
, int acc
)
1981 u32 cur_pbl_cnt
, pbl_offset
;
1982 u32 pending_pbl_cnt
= hwmr
->num_pbls
;
1985 cur_pbl_cnt
= min(pending_pbl_cnt
, MAX_OCRDMA_NSMR_PBL
);
1986 if (cur_pbl_cnt
== pending_pbl_cnt
)
1989 status
= ocrdma_mbx_reg_mr(dev
, hwmr
, pdid
,
1990 cur_pbl_cnt
, hwmr
->pbe_size
, last
);
1992 pr_err("%s() status=%d\n", __func__
, status
);
1995 /* if there is no more pbls to register then exit. */
2000 pbl_offset
+= cur_pbl_cnt
;
2001 pending_pbl_cnt
-= cur_pbl_cnt
;
2002 cur_pbl_cnt
= min(pending_pbl_cnt
, MAX_OCRDMA_NSMR_PBL
);
2003 /* if we reach the end of the pbls, then need to set the last
2004 * bit, indicating no more pbls to register for this memory key.
2006 if (cur_pbl_cnt
== pending_pbl_cnt
)
2009 status
= ocrdma_mbx_reg_mr_cont(dev
, hwmr
, cur_pbl_cnt
,
2015 pr_err("%s() err. status=%d\n", __func__
, status
);
2020 bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq
*cq
, struct ocrdma_qp
*qp
)
2022 struct ocrdma_qp
*tmp
;
2024 list_for_each_entry(tmp
, &cq
->sq_head
, sq_entry
) {
2033 bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq
*cq
, struct ocrdma_qp
*qp
)
2035 struct ocrdma_qp
*tmp
;
2037 list_for_each_entry(tmp
, &cq
->rq_head
, rq_entry
) {
2046 void ocrdma_flush_qp(struct ocrdma_qp
*qp
)
2049 unsigned long flags
;
2050 struct ocrdma_dev
*dev
= get_ocrdma_dev(qp
->ibqp
.device
);
2052 spin_lock_irqsave(&dev
->flush_q_lock
, flags
);
2053 found
= ocrdma_is_qp_in_sq_flushlist(qp
->sq_cq
, qp
);
2055 list_add_tail(&qp
->sq_entry
, &qp
->sq_cq
->sq_head
);
2057 found
= ocrdma_is_qp_in_rq_flushlist(qp
->rq_cq
, qp
);
2059 list_add_tail(&qp
->rq_entry
, &qp
->rq_cq
->rq_head
);
2061 spin_unlock_irqrestore(&dev
->flush_q_lock
, flags
);
2064 static void ocrdma_init_hwq_ptr(struct ocrdma_qp
*qp
)
2072 int ocrdma_qp_state_change(struct ocrdma_qp
*qp
, enum ib_qp_state new_ib_state
,
2073 enum ib_qp_state
*old_ib_state
)
2075 unsigned long flags
;
2077 enum ocrdma_qp_state new_state
;
2078 new_state
= get_ocrdma_qp_state(new_ib_state
);
2080 /* sync with wqe and rqe posting */
2081 spin_lock_irqsave(&qp
->q_lock
, flags
);
2084 *old_ib_state
= get_ibqp_state(qp
->state
);
2085 if (new_state
== qp
->state
) {
2086 spin_unlock_irqrestore(&qp
->q_lock
, flags
);
2091 if (new_state
== OCRDMA_QPS_INIT
) {
2092 ocrdma_init_hwq_ptr(qp
);
2093 ocrdma_del_flush_qp(qp
);
2094 } else if (new_state
== OCRDMA_QPS_ERR
) {
2095 ocrdma_flush_qp(qp
);
2098 qp
->state
= new_state
;
2100 spin_unlock_irqrestore(&qp
->q_lock
, flags
);
2104 static u32
ocrdma_set_create_qp_mbx_access_flags(struct ocrdma_qp
*qp
)
2107 if (qp
->cap_flags
& OCRDMA_QP_INB_RD
)
2108 flags
|= OCRDMA_CREATE_QP_REQ_INB_RDEN_MASK
;
2109 if (qp
->cap_flags
& OCRDMA_QP_INB_WR
)
2110 flags
|= OCRDMA_CREATE_QP_REQ_INB_WREN_MASK
;
2111 if (qp
->cap_flags
& OCRDMA_QP_MW_BIND
)
2112 flags
|= OCRDMA_CREATE_QP_REQ_BIND_MEMWIN_MASK
;
2113 if (qp
->cap_flags
& OCRDMA_QP_LKEY0
)
2114 flags
|= OCRDMA_CREATE_QP_REQ_ZERO_LKEYEN_MASK
;
2115 if (qp
->cap_flags
& OCRDMA_QP_FAST_REG
)
2116 flags
|= OCRDMA_CREATE_QP_REQ_FMR_EN_MASK
;
2120 static int ocrdma_set_create_qp_sq_cmd(struct ocrdma_create_qp_req
*cmd
,
2121 struct ib_qp_init_attr
*attrs
,
2122 struct ocrdma_qp
*qp
)
2125 u32 len
, hw_pages
, hw_page_size
;
2127 struct ocrdma_pd
*pd
= qp
->pd
;
2128 struct ocrdma_dev
*dev
= get_ocrdma_dev(pd
->ibpd
.device
);
2129 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2130 u32 max_wqe_allocated
;
2131 u32 max_sges
= attrs
->cap
.max_send_sge
;
2133 /* QP1 may exceed 127 */
2134 max_wqe_allocated
= min_t(u32
, attrs
->cap
.max_send_wr
+ 1,
2137 status
= ocrdma_build_q_conf(&max_wqe_allocated
,
2138 dev
->attr
.wqe_size
, &hw_pages
, &hw_page_size
);
2140 pr_err("%s() req. max_send_wr=0x%x\n", __func__
,
2144 qp
->sq
.max_cnt
= max_wqe_allocated
;
2145 len
= (hw_pages
* hw_page_size
);
2147 qp
->sq
.va
= dma_alloc_coherent(&pdev
->dev
, len
, &pa
, GFP_KERNEL
);
2150 memset(qp
->sq
.va
, 0, len
);
2153 qp
->sq
.entry_size
= dev
->attr
.wqe_size
;
2154 ocrdma_build_q_pages(&cmd
->wq_addr
[0], hw_pages
, pa
, hw_page_size
);
2156 cmd
->type_pgsz_pdn
|= (ilog2(hw_page_size
/ OCRDMA_MIN_Q_PAGE_SIZE
)
2157 << OCRDMA_CREATE_QP_REQ_SQ_PAGE_SIZE_SHIFT
);
2158 cmd
->num_wq_rq_pages
|= (hw_pages
<<
2159 OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_SHIFT
) &
2160 OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_MASK
;
2161 cmd
->max_sge_send_write
|= (max_sges
<<
2162 OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_SHIFT
) &
2163 OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_MASK
;
2164 cmd
->max_sge_send_write
|= (max_sges
<<
2165 OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_SHIFT
) &
2166 OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_MASK
;
2167 cmd
->max_wqe_rqe
|= (ilog2(qp
->sq
.max_cnt
) <<
2168 OCRDMA_CREATE_QP_REQ_MAX_WQE_SHIFT
) &
2169 OCRDMA_CREATE_QP_REQ_MAX_WQE_MASK
;
2170 cmd
->wqe_rqe_size
|= (dev
->attr
.wqe_size
<<
2171 OCRDMA_CREATE_QP_REQ_WQE_SIZE_SHIFT
) &
2172 OCRDMA_CREATE_QP_REQ_WQE_SIZE_MASK
;
2176 static int ocrdma_set_create_qp_rq_cmd(struct ocrdma_create_qp_req
*cmd
,
2177 struct ib_qp_init_attr
*attrs
,
2178 struct ocrdma_qp
*qp
)
2181 u32 len
, hw_pages
, hw_page_size
;
2183 struct ocrdma_pd
*pd
= qp
->pd
;
2184 struct ocrdma_dev
*dev
= get_ocrdma_dev(pd
->ibpd
.device
);
2185 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2186 u32 max_rqe_allocated
= attrs
->cap
.max_recv_wr
+ 1;
2188 status
= ocrdma_build_q_conf(&max_rqe_allocated
, dev
->attr
.rqe_size
,
2189 &hw_pages
, &hw_page_size
);
2191 pr_err("%s() req. max_recv_wr=0x%x\n", __func__
,
2192 attrs
->cap
.max_recv_wr
+ 1);
2195 qp
->rq
.max_cnt
= max_rqe_allocated
;
2196 len
= (hw_pages
* hw_page_size
);
2198 qp
->rq
.va
= dma_alloc_coherent(&pdev
->dev
, len
, &pa
, GFP_KERNEL
);
2201 memset(qp
->rq
.va
, 0, len
);
2204 qp
->rq
.entry_size
= dev
->attr
.rqe_size
;
2206 ocrdma_build_q_pages(&cmd
->rq_addr
[0], hw_pages
, pa
, hw_page_size
);
2207 cmd
->type_pgsz_pdn
|= (ilog2(hw_page_size
/ OCRDMA_MIN_Q_PAGE_SIZE
) <<
2208 OCRDMA_CREATE_QP_REQ_RQ_PAGE_SIZE_SHIFT
);
2209 cmd
->num_wq_rq_pages
|=
2210 (hw_pages
<< OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_SHIFT
) &
2211 OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_MASK
;
2212 cmd
->max_sge_recv_flags
|= (attrs
->cap
.max_recv_sge
<<
2213 OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_SHIFT
) &
2214 OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_MASK
;
2215 cmd
->max_wqe_rqe
|= (ilog2(qp
->rq
.max_cnt
) <<
2216 OCRDMA_CREATE_QP_REQ_MAX_RQE_SHIFT
) &
2217 OCRDMA_CREATE_QP_REQ_MAX_RQE_MASK
;
2218 cmd
->wqe_rqe_size
|= (dev
->attr
.rqe_size
<<
2219 OCRDMA_CREATE_QP_REQ_RQE_SIZE_SHIFT
) &
2220 OCRDMA_CREATE_QP_REQ_RQE_SIZE_MASK
;
2224 static void ocrdma_set_create_qp_dpp_cmd(struct ocrdma_create_qp_req
*cmd
,
2225 struct ocrdma_pd
*pd
,
2226 struct ocrdma_qp
*qp
,
2227 u8 enable_dpp_cq
, u16 dpp_cq_id
)
2230 qp
->dpp_enabled
= true;
2231 cmd
->max_sge_recv_flags
|= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK
;
2234 cmd
->max_sge_recv_flags
|= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK
;
2235 cmd
->dpp_credits_cqid
= dpp_cq_id
;
2236 cmd
->dpp_credits_cqid
|= OCRDMA_CREATE_QP_REQ_DPP_CREDIT_LIMIT
<<
2237 OCRDMA_CREATE_QP_REQ_DPP_CREDIT_SHIFT
;
2240 static int ocrdma_set_create_qp_ird_cmd(struct ocrdma_create_qp_req
*cmd
,
2241 struct ocrdma_qp
*qp
)
2243 struct ocrdma_pd
*pd
= qp
->pd
;
2244 struct ocrdma_dev
*dev
= get_ocrdma_dev(pd
->ibpd
.device
);
2245 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2247 int ird_page_size
= dev
->attr
.ird_page_size
;
2248 int ird_q_len
= dev
->attr
.num_ird_pages
* ird_page_size
;
2249 struct ocrdma_hdr_wqe
*rqe
;
2252 if (dev
->attr
.ird
== 0)
2255 qp
->ird_q_va
= dma_alloc_coherent(&pdev
->dev
, ird_q_len
,
2259 memset(qp
->ird_q_va
, 0, ird_q_len
);
2260 ocrdma_build_q_pages(&cmd
->ird_addr
[0], dev
->attr
.num_ird_pages
,
2262 for (; i
< ird_q_len
/ dev
->attr
.rqe_size
; i
++) {
2263 rqe
= (struct ocrdma_hdr_wqe
*)(qp
->ird_q_va
+
2264 (i
* dev
->attr
.rqe_size
));
2267 rqe
->cw
|= (OCRDMA_TYPE_LKEY
<< OCRDMA_WQE_TYPE_SHIFT
);
2268 rqe
->cw
|= (8 << OCRDMA_WQE_SIZE_SHIFT
);
2269 rqe
->cw
|= (8 << OCRDMA_WQE_NXT_WQE_SIZE_SHIFT
);
2274 static void ocrdma_get_create_qp_rsp(struct ocrdma_create_qp_rsp
*rsp
,
2275 struct ocrdma_qp
*qp
,
2276 struct ib_qp_init_attr
*attrs
,
2277 u16
*dpp_offset
, u16
*dpp_credit_lmt
)
2279 u32 max_wqe_allocated
, max_rqe_allocated
;
2280 qp
->id
= rsp
->qp_id
& OCRDMA_CREATE_QP_RSP_QP_ID_MASK
;
2281 qp
->rq
.dbid
= rsp
->sq_rq_id
& OCRDMA_CREATE_QP_RSP_RQ_ID_MASK
;
2282 qp
->sq
.dbid
= rsp
->sq_rq_id
>> OCRDMA_CREATE_QP_RSP_SQ_ID_SHIFT
;
2283 qp
->max_ird
= rsp
->max_ord_ird
& OCRDMA_CREATE_QP_RSP_MAX_IRD_MASK
;
2284 qp
->max_ord
= (rsp
->max_ord_ird
>> OCRDMA_CREATE_QP_RSP_MAX_ORD_SHIFT
);
2285 qp
->dpp_enabled
= false;
2286 if (rsp
->dpp_response
& OCRDMA_CREATE_QP_RSP_DPP_ENABLED_MASK
) {
2287 qp
->dpp_enabled
= true;
2288 *dpp_credit_lmt
= (rsp
->dpp_response
&
2289 OCRDMA_CREATE_QP_RSP_DPP_CREDITS_MASK
) >>
2290 OCRDMA_CREATE_QP_RSP_DPP_CREDITS_SHIFT
;
2291 *dpp_offset
= (rsp
->dpp_response
&
2292 OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_MASK
) >>
2293 OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_SHIFT
;
2296 rsp
->max_wqe_rqe
>> OCRDMA_CREATE_QP_RSP_MAX_WQE_SHIFT
;
2297 max_wqe_allocated
= 1 << max_wqe_allocated
;
2298 max_rqe_allocated
= 1 << ((u16
)rsp
->max_wqe_rqe
);
2300 qp
->sq
.max_cnt
= max_wqe_allocated
;
2301 qp
->sq
.max_wqe_idx
= max_wqe_allocated
- 1;
2304 qp
->rq
.max_cnt
= max_rqe_allocated
;
2305 qp
->rq
.max_wqe_idx
= max_rqe_allocated
- 1;
2309 int ocrdma_mbx_create_qp(struct ocrdma_qp
*qp
, struct ib_qp_init_attr
*attrs
,
2310 u8 enable_dpp_cq
, u16 dpp_cq_id
, u16
*dpp_offset
,
2311 u16
*dpp_credit_lmt
)
2313 int status
= -ENOMEM
;
2315 struct ocrdma_pd
*pd
= qp
->pd
;
2316 struct ocrdma_dev
*dev
= get_ocrdma_dev(pd
->ibpd
.device
);
2317 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2318 struct ocrdma_cq
*cq
;
2319 struct ocrdma_create_qp_req
*cmd
;
2320 struct ocrdma_create_qp_rsp
*rsp
;
2323 switch (attrs
->qp_type
) {
2325 qptype
= OCRDMA_QPT_GSI
;
2328 qptype
= OCRDMA_QPT_RC
;
2331 qptype
= OCRDMA_QPT_UD
;
2337 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_QP
, sizeof(*cmd
));
2340 cmd
->type_pgsz_pdn
|= (qptype
<< OCRDMA_CREATE_QP_REQ_QPT_SHIFT
) &
2341 OCRDMA_CREATE_QP_REQ_QPT_MASK
;
2342 status
= ocrdma_set_create_qp_sq_cmd(cmd
, attrs
, qp
);
2347 struct ocrdma_srq
*srq
= get_ocrdma_srq(attrs
->srq
);
2348 cmd
->max_sge_recv_flags
|= OCRDMA_CREATE_QP_REQ_USE_SRQ_MASK
;
2349 cmd
->rq_addr
[0].lo
= srq
->id
;
2352 status
= ocrdma_set_create_qp_rq_cmd(cmd
, attrs
, qp
);
2357 status
= ocrdma_set_create_qp_ird_cmd(cmd
, qp
);
2361 cmd
->type_pgsz_pdn
|= (pd
->id
<< OCRDMA_CREATE_QP_REQ_PD_ID_SHIFT
) &
2362 OCRDMA_CREATE_QP_REQ_PD_ID_MASK
;
2364 flags
= ocrdma_set_create_qp_mbx_access_flags(qp
);
2366 cmd
->max_sge_recv_flags
|= flags
;
2367 cmd
->max_ord_ird
|= (dev
->attr
.max_ord_per_qp
<<
2368 OCRDMA_CREATE_QP_REQ_MAX_ORD_SHIFT
) &
2369 OCRDMA_CREATE_QP_REQ_MAX_ORD_MASK
;
2370 cmd
->max_ord_ird
|= (dev
->attr
.max_ird_per_qp
<<
2371 OCRDMA_CREATE_QP_REQ_MAX_IRD_SHIFT
) &
2372 OCRDMA_CREATE_QP_REQ_MAX_IRD_MASK
;
2373 cq
= get_ocrdma_cq(attrs
->send_cq
);
2374 cmd
->wq_rq_cqid
|= (cq
->id
<< OCRDMA_CREATE_QP_REQ_WQ_CQID_SHIFT
) &
2375 OCRDMA_CREATE_QP_REQ_WQ_CQID_MASK
;
2377 cq
= get_ocrdma_cq(attrs
->recv_cq
);
2378 cmd
->wq_rq_cqid
|= (cq
->id
<< OCRDMA_CREATE_QP_REQ_RQ_CQID_SHIFT
) &
2379 OCRDMA_CREATE_QP_REQ_RQ_CQID_MASK
;
2382 if (pd
->dpp_enabled
&& attrs
->cap
.max_inline_data
&& pd
->num_dpp_qp
&&
2383 (attrs
->cap
.max_inline_data
<= dev
->attr
.max_inline_data
)) {
2384 ocrdma_set_create_qp_dpp_cmd(cmd
, pd
, qp
, enable_dpp_cq
,
2388 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2391 rsp
= (struct ocrdma_create_qp_rsp
*)cmd
;
2392 ocrdma_get_create_qp_rsp(rsp
, qp
, attrs
, dpp_offset
, dpp_credit_lmt
);
2393 qp
->state
= OCRDMA_QPS_RST
;
2398 dma_free_coherent(&pdev
->dev
, qp
->rq
.len
, qp
->rq
.va
, qp
->rq
.pa
);
2400 pr_err("%s(%d) rq_err\n", __func__
, dev
->id
);
2401 dma_free_coherent(&pdev
->dev
, qp
->sq
.len
, qp
->sq
.va
, qp
->sq
.pa
);
2403 pr_err("%s(%d) sq_err\n", __func__
, dev
->id
);
2408 int ocrdma_mbx_query_qp(struct ocrdma_dev
*dev
, struct ocrdma_qp
*qp
,
2409 struct ocrdma_qp_params
*param
)
2411 int status
= -ENOMEM
;
2412 struct ocrdma_query_qp
*cmd
;
2413 struct ocrdma_query_qp_rsp
*rsp
;
2415 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_QP
, sizeof(*cmd
));
2418 cmd
->qp_id
= qp
->id
;
2419 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2422 rsp
= (struct ocrdma_query_qp_rsp
*)cmd
;
2423 memcpy(param
, &rsp
->params
, sizeof(struct ocrdma_qp_params
));
2429 static int ocrdma_set_av_params(struct ocrdma_qp
*qp
,
2430 struct ocrdma_modify_qp
*cmd
,
2431 struct ib_qp_attr
*attrs
,
2435 struct ib_ah_attr
*ah_attr
= &attrs
->ah_attr
;
2436 union ib_gid sgid
, zgid
;
2437 u32 vlan_id
= 0xFFFF;
2439 struct ocrdma_dev
*dev
= get_ocrdma_dev(qp
->ibqp
.device
);
2441 if ((ah_attr
->ah_flags
& IB_AH_GRH
) == 0)
2443 if (atomic_cmpxchg(&dev
->update_sl
, 1, 0))
2444 ocrdma_init_service_level(dev
);
2445 cmd
->params
.tclass_sq_psn
|=
2446 (ah_attr
->grh
.traffic_class
<< OCRDMA_QP_PARAMS_TCLASS_SHIFT
);
2447 cmd
->params
.rnt_rc_sl_fl
|=
2448 (ah_attr
->grh
.flow_label
& OCRDMA_QP_PARAMS_FLOW_LABEL_MASK
);
2449 cmd
->params
.rnt_rc_sl_fl
|= (ah_attr
->sl
<< OCRDMA_QP_PARAMS_SL_SHIFT
);
2450 cmd
->params
.hop_lmt_rq_psn
|=
2451 (ah_attr
->grh
.hop_limit
<< OCRDMA_QP_PARAMS_HOP_LMT_SHIFT
);
2452 cmd
->flags
|= OCRDMA_QP_PARA_FLOW_LBL_VALID
;
2453 memcpy(&cmd
->params
.dgid
[0], &ah_attr
->grh
.dgid
.raw
[0],
2454 sizeof(cmd
->params
.dgid
));
2455 status
= ocrdma_query_gid(&dev
->ibdev
, 1,
2456 ah_attr
->grh
.sgid_index
, &sgid
);
2460 memset(&zgid
, 0, sizeof(zgid
));
2461 if (!memcmp(&sgid
, &zgid
, sizeof(zgid
)))
2464 qp
->sgid_idx
= ah_attr
->grh
.sgid_index
;
2465 memcpy(&cmd
->params
.sgid
[0], &sgid
.raw
[0], sizeof(cmd
->params
.sgid
));
2466 status
= ocrdma_resolve_dmac(dev
, ah_attr
, &mac_addr
[0]);
2469 cmd
->params
.dmac_b0_to_b3
= mac_addr
[0] | (mac_addr
[1] << 8) |
2470 (mac_addr
[2] << 16) | (mac_addr
[3] << 24);
2471 /* convert them to LE format. */
2472 ocrdma_cpu_to_le32(&cmd
->params
.dgid
[0], sizeof(cmd
->params
.dgid
));
2473 ocrdma_cpu_to_le32(&cmd
->params
.sgid
[0], sizeof(cmd
->params
.sgid
));
2474 cmd
->params
.vlan_dmac_b4_to_b5
= mac_addr
[4] | (mac_addr
[5] << 8);
2475 if (attr_mask
& IB_QP_VID
) {
2476 vlan_id
= attrs
->vlan_id
;
2477 } else if (dev
->pfc_state
) {
2479 pr_err("ocrdma%d:Using VLAN with PFC is recommended\n",
2481 pr_err("ocrdma%d:Using VLAN 0 for this connection\n",
2485 if (vlan_id
< 0x1000) {
2486 cmd
->params
.vlan_dmac_b4_to_b5
|=
2487 vlan_id
<< OCRDMA_QP_PARAMS_VLAN_SHIFT
;
2488 cmd
->flags
|= OCRDMA_QP_PARA_VLAN_EN_VALID
;
2489 cmd
->params
.rnt_rc_sl_fl
|=
2490 (dev
->sl
& 0x07) << OCRDMA_QP_PARAMS_SL_SHIFT
;
2496 static int ocrdma_set_qp_params(struct ocrdma_qp
*qp
,
2497 struct ocrdma_modify_qp
*cmd
,
2498 struct ib_qp_attr
*attrs
, int attr_mask
)
2501 struct ocrdma_dev
*dev
= get_ocrdma_dev(qp
->ibqp
.device
);
2503 if (attr_mask
& IB_QP_PKEY_INDEX
) {
2504 cmd
->params
.path_mtu_pkey_indx
|= (attrs
->pkey_index
&
2505 OCRDMA_QP_PARAMS_PKEY_INDEX_MASK
);
2506 cmd
->flags
|= OCRDMA_QP_PARA_PKEY_VALID
;
2508 if (attr_mask
& IB_QP_QKEY
) {
2509 qp
->qkey
= attrs
->qkey
;
2510 cmd
->params
.qkey
= attrs
->qkey
;
2511 cmd
->flags
|= OCRDMA_QP_PARA_QKEY_VALID
;
2513 if (attr_mask
& IB_QP_AV
) {
2514 status
= ocrdma_set_av_params(qp
, cmd
, attrs
, attr_mask
);
2517 } else if (qp
->qp_type
== IB_QPT_GSI
|| qp
->qp_type
== IB_QPT_UD
) {
2518 /* set the default mac address for UD, GSI QPs */
2519 cmd
->params
.dmac_b0_to_b3
= dev
->nic_info
.mac_addr
[0] |
2520 (dev
->nic_info
.mac_addr
[1] << 8) |
2521 (dev
->nic_info
.mac_addr
[2] << 16) |
2522 (dev
->nic_info
.mac_addr
[3] << 24);
2523 cmd
->params
.vlan_dmac_b4_to_b5
= dev
->nic_info
.mac_addr
[4] |
2524 (dev
->nic_info
.mac_addr
[5] << 8);
2526 if ((attr_mask
& IB_QP_EN_SQD_ASYNC_NOTIFY
) &&
2527 attrs
->en_sqd_async_notify
) {
2528 cmd
->params
.max_sge_recv_flags
|=
2529 OCRDMA_QP_PARAMS_FLAGS_SQD_ASYNC
;
2530 cmd
->flags
|= OCRDMA_QP_PARA_DST_QPN_VALID
;
2532 if (attr_mask
& IB_QP_DEST_QPN
) {
2533 cmd
->params
.ack_to_rnr_rtc_dest_qpn
|= (attrs
->dest_qp_num
&
2534 OCRDMA_QP_PARAMS_DEST_QPN_MASK
);
2535 cmd
->flags
|= OCRDMA_QP_PARA_DST_QPN_VALID
;
2537 if (attr_mask
& IB_QP_PATH_MTU
) {
2538 if (attrs
->path_mtu
< IB_MTU_256
||
2539 attrs
->path_mtu
> IB_MTU_4096
) {
2543 cmd
->params
.path_mtu_pkey_indx
|=
2544 (ib_mtu_enum_to_int(attrs
->path_mtu
) <<
2545 OCRDMA_QP_PARAMS_PATH_MTU_SHIFT
) &
2546 OCRDMA_QP_PARAMS_PATH_MTU_MASK
;
2547 cmd
->flags
|= OCRDMA_QP_PARA_PMTU_VALID
;
2549 if (attr_mask
& IB_QP_TIMEOUT
) {
2550 cmd
->params
.ack_to_rnr_rtc_dest_qpn
|= attrs
->timeout
<<
2551 OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT
;
2552 cmd
->flags
|= OCRDMA_QP_PARA_ACK_TO_VALID
;
2554 if (attr_mask
& IB_QP_RETRY_CNT
) {
2555 cmd
->params
.rnt_rc_sl_fl
|= (attrs
->retry_cnt
<<
2556 OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT
) &
2557 OCRDMA_QP_PARAMS_RETRY_CNT_MASK
;
2558 cmd
->flags
|= OCRDMA_QP_PARA_RETRY_CNT_VALID
;
2560 if (attr_mask
& IB_QP_MIN_RNR_TIMER
) {
2561 cmd
->params
.rnt_rc_sl_fl
|= (attrs
->min_rnr_timer
<<
2562 OCRDMA_QP_PARAMS_RNR_NAK_TIMER_SHIFT
) &
2563 OCRDMA_QP_PARAMS_RNR_NAK_TIMER_MASK
;
2564 cmd
->flags
|= OCRDMA_QP_PARA_RNT_VALID
;
2566 if (attr_mask
& IB_QP_RNR_RETRY
) {
2567 cmd
->params
.ack_to_rnr_rtc_dest_qpn
|= (attrs
->rnr_retry
<<
2568 OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT
)
2569 & OCRDMA_QP_PARAMS_RNR_RETRY_CNT_MASK
;
2570 cmd
->flags
|= OCRDMA_QP_PARA_RRC_VALID
;
2572 if (attr_mask
& IB_QP_SQ_PSN
) {
2573 cmd
->params
.tclass_sq_psn
|= (attrs
->sq_psn
& 0x00ffffff);
2574 cmd
->flags
|= OCRDMA_QP_PARA_SQPSN_VALID
;
2576 if (attr_mask
& IB_QP_RQ_PSN
) {
2577 cmd
->params
.hop_lmt_rq_psn
|= (attrs
->rq_psn
& 0x00ffffff);
2578 cmd
->flags
|= OCRDMA_QP_PARA_RQPSN_VALID
;
2580 if (attr_mask
& IB_QP_MAX_QP_RD_ATOMIC
) {
2581 if (attrs
->max_rd_atomic
> dev
->attr
.max_ord_per_qp
) {
2585 qp
->max_ord
= attrs
->max_rd_atomic
;
2586 cmd
->flags
|= OCRDMA_QP_PARA_MAX_ORD_VALID
;
2588 if (attr_mask
& IB_QP_MAX_DEST_RD_ATOMIC
) {
2589 if (attrs
->max_dest_rd_atomic
> dev
->attr
.max_ird_per_qp
) {
2593 qp
->max_ird
= attrs
->max_dest_rd_atomic
;
2594 cmd
->flags
|= OCRDMA_QP_PARA_MAX_IRD_VALID
;
2596 cmd
->params
.max_ord_ird
= (qp
->max_ord
<<
2597 OCRDMA_QP_PARAMS_MAX_ORD_SHIFT
) |
2598 (qp
->max_ird
& OCRDMA_QP_PARAMS_MAX_IRD_MASK
);
2603 int ocrdma_mbx_modify_qp(struct ocrdma_dev
*dev
, struct ocrdma_qp
*qp
,
2604 struct ib_qp_attr
*attrs
, int attr_mask
)
2606 int status
= -ENOMEM
;
2607 struct ocrdma_modify_qp
*cmd
;
2609 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_QP
, sizeof(*cmd
));
2613 cmd
->params
.id
= qp
->id
;
2615 if (attr_mask
& IB_QP_STATE
) {
2616 cmd
->params
.max_sge_recv_flags
|=
2617 (get_ocrdma_qp_state(attrs
->qp_state
) <<
2618 OCRDMA_QP_PARAMS_STATE_SHIFT
) &
2619 OCRDMA_QP_PARAMS_STATE_MASK
;
2620 cmd
->flags
|= OCRDMA_QP_PARA_QPS_VALID
;
2622 cmd
->params
.max_sge_recv_flags
|=
2623 (qp
->state
<< OCRDMA_QP_PARAMS_STATE_SHIFT
) &
2624 OCRDMA_QP_PARAMS_STATE_MASK
;
2627 status
= ocrdma_set_qp_params(qp
, cmd
, attrs
, attr_mask
);
2630 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2639 int ocrdma_mbx_destroy_qp(struct ocrdma_dev
*dev
, struct ocrdma_qp
*qp
)
2641 int status
= -ENOMEM
;
2642 struct ocrdma_destroy_qp
*cmd
;
2643 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2645 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_QP
, sizeof(*cmd
));
2648 cmd
->qp_id
= qp
->id
;
2649 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2656 dma_free_coherent(&pdev
->dev
, qp
->sq
.len
, qp
->sq
.va
, qp
->sq
.pa
);
2657 if (!qp
->srq
&& qp
->rq
.va
)
2658 dma_free_coherent(&pdev
->dev
, qp
->rq
.len
, qp
->rq
.va
, qp
->rq
.pa
);
2659 if (qp
->dpp_enabled
)
2660 qp
->pd
->num_dpp_qp
++;
2664 int ocrdma_mbx_create_srq(struct ocrdma_dev
*dev
, struct ocrdma_srq
*srq
,
2665 struct ib_srq_init_attr
*srq_attr
,
2666 struct ocrdma_pd
*pd
)
2668 int status
= -ENOMEM
;
2669 int hw_pages
, hw_page_size
;
2671 struct ocrdma_create_srq_rsp
*rsp
;
2672 struct ocrdma_create_srq
*cmd
;
2674 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2675 u32 max_rqe_allocated
;
2677 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ
, sizeof(*cmd
));
2681 cmd
->pgsz_pdid
= pd
->id
& OCRDMA_CREATE_SRQ_PD_ID_MASK
;
2682 max_rqe_allocated
= srq_attr
->attr
.max_wr
+ 1;
2683 status
= ocrdma_build_q_conf(&max_rqe_allocated
,
2685 &hw_pages
, &hw_page_size
);
2687 pr_err("%s() req. max_wr=0x%x\n", __func__
,
2688 srq_attr
->attr
.max_wr
);
2692 len
= hw_pages
* hw_page_size
;
2693 srq
->rq
.va
= dma_alloc_coherent(&pdev
->dev
, len
, &pa
, GFP_KERNEL
);
2698 ocrdma_build_q_pages(&cmd
->rq_addr
[0], hw_pages
, pa
, hw_page_size
);
2700 srq
->rq
.entry_size
= dev
->attr
.rqe_size
;
2703 srq
->rq
.max_cnt
= max_rqe_allocated
;
2705 cmd
->max_sge_rqe
= ilog2(max_rqe_allocated
);
2706 cmd
->max_sge_rqe
|= srq_attr
->attr
.max_sge
<<
2707 OCRDMA_CREATE_SRQ_MAX_SGE_RECV_SHIFT
;
2709 cmd
->pgsz_pdid
|= (ilog2(hw_page_size
/ OCRDMA_MIN_Q_PAGE_SIZE
)
2710 << OCRDMA_CREATE_SRQ_PG_SZ_SHIFT
);
2711 cmd
->pages_rqe_sz
|= (dev
->attr
.rqe_size
2712 << OCRDMA_CREATE_SRQ_RQE_SIZE_SHIFT
)
2713 & OCRDMA_CREATE_SRQ_RQE_SIZE_MASK
;
2714 cmd
->pages_rqe_sz
|= hw_pages
<< OCRDMA_CREATE_SRQ_NUM_RQ_PAGES_SHIFT
;
2716 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2719 rsp
= (struct ocrdma_create_srq_rsp
*)cmd
;
2721 srq
->rq
.dbid
= rsp
->id
;
2722 max_rqe_allocated
= ((rsp
->max_sge_rqe_allocated
&
2723 OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_MASK
) >>
2724 OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_SHIFT
);
2725 max_rqe_allocated
= (1 << max_rqe_allocated
);
2726 srq
->rq
.max_cnt
= max_rqe_allocated
;
2727 srq
->rq
.max_wqe_idx
= max_rqe_allocated
- 1;
2728 srq
->rq
.max_sges
= (rsp
->max_sge_rqe_allocated
&
2729 OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_MASK
) >>
2730 OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_SHIFT
;
2733 dma_free_coherent(&pdev
->dev
, srq
->rq
.len
, srq
->rq
.va
, pa
);
2739 int ocrdma_mbx_modify_srq(struct ocrdma_srq
*srq
, struct ib_srq_attr
*srq_attr
)
2741 int status
= -ENOMEM
;
2742 struct ocrdma_modify_srq
*cmd
;
2743 struct ocrdma_pd
*pd
= srq
->pd
;
2744 struct ocrdma_dev
*dev
= get_ocrdma_dev(pd
->ibpd
.device
);
2746 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_SRQ
, sizeof(*cmd
));
2750 cmd
->limit_max_rqe
|= srq_attr
->srq_limit
<<
2751 OCRDMA_MODIFY_SRQ_LIMIT_SHIFT
;
2752 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2757 int ocrdma_mbx_query_srq(struct ocrdma_srq
*srq
, struct ib_srq_attr
*srq_attr
)
2759 int status
= -ENOMEM
;
2760 struct ocrdma_query_srq
*cmd
;
2761 struct ocrdma_dev
*dev
= get_ocrdma_dev(srq
->ibsrq
.device
);
2763 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_SRQ
, sizeof(*cmd
));
2766 cmd
->id
= srq
->rq
.dbid
;
2767 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2769 struct ocrdma_query_srq_rsp
*rsp
=
2770 (struct ocrdma_query_srq_rsp
*)cmd
;
2772 rsp
->srq_lmt_max_sge
&
2773 OCRDMA_QUERY_SRQ_RSP_MAX_SGE_RECV_MASK
;
2775 rsp
->max_rqe_pdid
>> OCRDMA_QUERY_SRQ_RSP_MAX_RQE_SHIFT
;
2776 srq_attr
->srq_limit
= rsp
->srq_lmt_max_sge
>>
2777 OCRDMA_QUERY_SRQ_RSP_SRQ_LIMIT_SHIFT
;
2783 int ocrdma_mbx_destroy_srq(struct ocrdma_dev
*dev
, struct ocrdma_srq
*srq
)
2785 int status
= -ENOMEM
;
2786 struct ocrdma_destroy_srq
*cmd
;
2787 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2788 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_SRQ
, sizeof(*cmd
));
2792 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
2794 dma_free_coherent(&pdev
->dev
, srq
->rq
.len
,
2795 srq
->rq
.va
, srq
->rq
.pa
);
2800 static int ocrdma_mbx_get_dcbx_config(struct ocrdma_dev
*dev
, u32 ptype
,
2801 struct ocrdma_dcbx_cfg
*dcbxcfg
)
2805 struct ocrdma_mqe cmd
;
2807 struct ocrdma_get_dcbx_cfg_req
*req
= NULL
;
2808 struct ocrdma_get_dcbx_cfg_rsp
*rsp
= NULL
;
2809 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
2810 struct ocrdma_mqe_sge
*mqe_sge
= cmd
.u
.nonemb_req
.sge
;
2812 memset(&cmd
, 0, sizeof(struct ocrdma_mqe
));
2813 cmd
.hdr
.pyld_len
= max_t (u32
, sizeof(struct ocrdma_get_dcbx_cfg_rsp
),
2814 sizeof(struct ocrdma_get_dcbx_cfg_req
));
2815 req
= dma_alloc_coherent(&pdev
->dev
, cmd
.hdr
.pyld_len
, &pa
, GFP_KERNEL
);
2821 cmd
.hdr
.spcl_sge_cnt_emb
|= (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT
) &
2822 OCRDMA_MQE_HDR_SGE_CNT_MASK
;
2823 mqe_sge
->pa_lo
= (u32
) (pa
& 0xFFFFFFFFUL
);
2824 mqe_sge
->pa_hi
= (u32
) upper_32_bits(pa
);
2825 mqe_sge
->len
= cmd
.hdr
.pyld_len
;
2827 memset(req
, 0, sizeof(struct ocrdma_get_dcbx_cfg_req
));
2828 ocrdma_init_mch(&req
->hdr
, OCRDMA_CMD_GET_DCBX_CONFIG
,
2829 OCRDMA_SUBSYS_DCBX
, cmd
.hdr
.pyld_len
);
2830 req
->param_type
= ptype
;
2832 status
= ocrdma_mbx_cmd(dev
, &cmd
);
2836 rsp
= (struct ocrdma_get_dcbx_cfg_rsp
*)req
;
2837 ocrdma_le32_to_cpu(rsp
, sizeof(struct ocrdma_get_dcbx_cfg_rsp
));
2838 memcpy(dcbxcfg
, &rsp
->cfg
, sizeof(struct ocrdma_dcbx_cfg
));
2841 dma_free_coherent(&pdev
->dev
, cmd
.hdr
.pyld_len
, req
, pa
);
2846 #define OCRDMA_MAX_SERVICE_LEVEL_INDEX 0x08
2847 #define OCRDMA_DEFAULT_SERVICE_LEVEL 0x05
2849 static int ocrdma_parse_dcbxcfg_rsp(struct ocrdma_dev
*dev
, int ptype
,
2850 struct ocrdma_dcbx_cfg
*dcbxcfg
,
2853 int status
= -EINVAL
, indx
, slindx
;
2855 struct ocrdma_app_parameter
*app_param
;
2856 u8 valid
, proto_sel
;
2857 u8 app_prio
, pfc_prio
;
2860 if (!(dcbxcfg
->tcv_aev_opv_st
& OCRDMA_DCBX_STATE_MASK
)) {
2861 pr_info("%s ocrdma%d DCBX is disabled\n",
2862 dev_name(&dev
->nic_info
.pdev
->dev
), dev
->id
);
2866 if (!ocrdma_is_enabled_and_synced(dcbxcfg
->pfc_state
)) {
2867 pr_info("%s ocrdma%d priority flow control(%s) is %s%s\n",
2868 dev_name(&dev
->nic_info
.pdev
->dev
), dev
->id
,
2869 (ptype
> 0 ? "operational" : "admin"),
2870 (dcbxcfg
->pfc_state
& OCRDMA_STATE_FLAG_ENABLED
) ?
2871 "enabled" : "disabled",
2872 (dcbxcfg
->pfc_state
& OCRDMA_STATE_FLAG_SYNC
) ?
2873 "" : ", not sync'ed");
2876 pr_info("%s ocrdma%d priority flow control is enabled and sync'ed\n",
2877 dev_name(&dev
->nic_info
.pdev
->dev
), dev
->id
);
2880 ventry_cnt
= (dcbxcfg
->tcv_aev_opv_st
>>
2881 OCRDMA_DCBX_APP_ENTRY_SHIFT
)
2882 & OCRDMA_DCBX_STATE_MASK
;
2884 for (indx
= 0; indx
< ventry_cnt
; indx
++) {
2885 app_param
= &dcbxcfg
->app_param
[indx
];
2886 valid
= (app_param
->valid_proto_app
>>
2887 OCRDMA_APP_PARAM_VALID_SHIFT
)
2888 & OCRDMA_APP_PARAM_VALID_MASK
;
2889 proto_sel
= (app_param
->valid_proto_app
2890 >> OCRDMA_APP_PARAM_PROTO_SEL_SHIFT
)
2891 & OCRDMA_APP_PARAM_PROTO_SEL_MASK
;
2892 proto
= app_param
->valid_proto_app
&
2893 OCRDMA_APP_PARAM_APP_PROTO_MASK
;
2896 valid
&& proto
== OCRDMA_APP_PROTO_ROCE
&&
2897 proto_sel
== OCRDMA_PROTO_SELECT_L2
) {
2898 for (slindx
= 0; slindx
<
2899 OCRDMA_MAX_SERVICE_LEVEL_INDEX
; slindx
++) {
2900 app_prio
= ocrdma_get_app_prio(
2901 (u8
*)app_param
->app_prio
,
2903 pfc_prio
= ocrdma_get_pfc_prio(
2904 (u8
*)dcbxcfg
->pfc_prio
,
2907 if (app_prio
&& pfc_prio
) {
2913 if (slindx
== OCRDMA_MAX_SERVICE_LEVEL_INDEX
) {
2914 pr_info("%s ocrdma%d application priority not set for 0x%x protocol\n",
2915 dev_name(&dev
->nic_info
.pdev
->dev
),
2925 void ocrdma_init_service_level(struct ocrdma_dev
*dev
)
2927 int status
= 0, indx
;
2928 struct ocrdma_dcbx_cfg dcbxcfg
;
2929 u8 srvc_lvl
= OCRDMA_DEFAULT_SERVICE_LEVEL
;
2930 int ptype
= OCRDMA_PARAMETER_TYPE_OPER
;
2932 for (indx
= 0; indx
< 2; indx
++) {
2933 status
= ocrdma_mbx_get_dcbx_config(dev
, ptype
, &dcbxcfg
);
2935 pr_err("%s(): status=%d\n", __func__
, status
);
2936 ptype
= OCRDMA_PARAMETER_TYPE_ADMIN
;
2940 status
= ocrdma_parse_dcbxcfg_rsp(dev
, ptype
,
2941 &dcbxcfg
, &srvc_lvl
);
2943 ptype
= OCRDMA_PARAMETER_TYPE_ADMIN
;
2951 pr_info("%s ocrdma%d service level default\n",
2952 dev_name(&dev
->nic_info
.pdev
->dev
), dev
->id
);
2954 pr_info("%s ocrdma%d service level %d\n",
2955 dev_name(&dev
->nic_info
.pdev
->dev
), dev
->id
,
2958 dev
->pfc_state
= ocrdma_is_enabled_and_synced(dcbxcfg
.pfc_state
);
2962 int ocrdma_alloc_av(struct ocrdma_dev
*dev
, struct ocrdma_ah
*ah
)
2965 int status
= -EINVAL
;
2966 struct ocrdma_av
*av
;
2967 unsigned long flags
;
2969 av
= dev
->av_tbl
.va
;
2970 spin_lock_irqsave(&dev
->av_tbl
.lock
, flags
);
2971 for (i
= 0; i
< dev
->av_tbl
.num_ah
; i
++) {
2972 if (av
->valid
== 0) {
2973 av
->valid
= OCRDMA_AV_VALID
;
2981 if (i
== dev
->av_tbl
.num_ah
)
2983 spin_unlock_irqrestore(&dev
->av_tbl
.lock
, flags
);
2987 int ocrdma_free_av(struct ocrdma_dev
*dev
, struct ocrdma_ah
*ah
)
2989 unsigned long flags
;
2990 spin_lock_irqsave(&dev
->av_tbl
.lock
, flags
);
2992 spin_unlock_irqrestore(&dev
->av_tbl
.lock
, flags
);
2996 static int ocrdma_create_eqs(struct ocrdma_dev
*dev
)
2998 int num_eq
, i
, status
= 0;
3000 unsigned long flags
= 0;
3002 num_eq
= dev
->nic_info
.msix
.num_vectors
-
3003 dev
->nic_info
.msix
.start_vector
;
3004 if (dev
->nic_info
.intr_mode
== BE_INTERRUPT_MODE_INTX
) {
3006 flags
= IRQF_SHARED
;
3008 num_eq
= min_t(u32
, num_eq
, num_online_cpus());
3014 dev
->eq_tbl
= kzalloc(sizeof(struct ocrdma_eq
) * num_eq
, GFP_KERNEL
);
3018 for (i
= 0; i
< num_eq
; i
++) {
3019 status
= ocrdma_create_eq(dev
, &dev
->eq_tbl
[i
],
3025 sprintf(dev
->eq_tbl
[i
].irq_name
, "ocrdma%d-%d",
3027 irq
= ocrdma_get_irq(dev
, &dev
->eq_tbl
[i
]);
3028 status
= request_irq(irq
, ocrdma_irq_handler
, flags
,
3029 dev
->eq_tbl
[i
].irq_name
,
3035 /* one eq is sufficient for data path to work */
3038 ocrdma_destroy_eqs(dev
);
3042 static int ocrdma_mbx_modify_eqd(struct ocrdma_dev
*dev
, struct ocrdma_eq
*eq
,
3045 int i
, status
= -ENOMEM
;
3046 struct ocrdma_modify_eqd_req
*cmd
;
3048 cmd
= ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_EQ_DELAY
, sizeof(*cmd
));
3052 ocrdma_init_mch(&cmd
->cmd
.req
, OCRDMA_CMD_MODIFY_EQ_DELAY
,
3053 OCRDMA_SUBSYS_COMMON
, sizeof(*cmd
));
3055 cmd
->cmd
.num_eq
= num
;
3056 for (i
= 0; i
< num
; i
++) {
3057 cmd
->cmd
.set_eqd
[i
].eq_id
= eq
[i
].q
.id
;
3058 cmd
->cmd
.set_eqd
[i
].phase
= 0;
3059 cmd
->cmd
.set_eqd
[i
].delay_multiplier
=
3060 (eq
[i
].aic_obj
.prev_eqd
* 65)/100;
3062 status
= ocrdma_mbx_cmd(dev
, (struct ocrdma_mqe
*)cmd
);
3070 static int ocrdma_modify_eqd(struct ocrdma_dev
*dev
, struct ocrdma_eq
*eq
,
3076 num_eqs
= min(num
, 8);
3077 ocrdma_mbx_modify_eqd(dev
, &eq
[i
], num_eqs
);
3082 ocrdma_mbx_modify_eqd(dev
, eq
, num
);
3087 void ocrdma_eqd_set_task(struct work_struct
*work
)
3089 struct ocrdma_dev
*dev
=
3090 container_of(work
, struct ocrdma_dev
, eqd_work
.work
);
3091 struct ocrdma_eq
*eq
= 0;
3092 int i
, num
= 0, status
= -EINVAL
;
3095 for (i
= 0; i
< dev
->eq_cnt
; i
++) {
3096 eq
= &dev
->eq_tbl
[i
];
3097 if (eq
->aic_obj
.eq_intr_cnt
> eq
->aic_obj
.prev_eq_intr_cnt
) {
3098 eq_intr
= eq
->aic_obj
.eq_intr_cnt
-
3099 eq
->aic_obj
.prev_eq_intr_cnt
;
3100 if ((eq_intr
> EQ_INTR_PER_SEC_THRSH_HI
) &&
3101 (eq
->aic_obj
.prev_eqd
== EQ_AIC_MIN_EQD
)) {
3102 eq
->aic_obj
.prev_eqd
= EQ_AIC_MAX_EQD
;
3104 } else if ((eq_intr
< EQ_INTR_PER_SEC_THRSH_LOW
) &&
3105 (eq
->aic_obj
.prev_eqd
== EQ_AIC_MAX_EQD
)) {
3106 eq
->aic_obj
.prev_eqd
= EQ_AIC_MIN_EQD
;
3110 eq
->aic_obj
.prev_eq_intr_cnt
= eq
->aic_obj
.eq_intr_cnt
;
3114 status
= ocrdma_modify_eqd(dev
, &dev
->eq_tbl
[0], num
);
3115 schedule_delayed_work(&dev
->eqd_work
, msecs_to_jiffies(1000));
3118 int ocrdma_init_hw(struct ocrdma_dev
*dev
)
3122 /* create the eqs */
3123 status
= ocrdma_create_eqs(dev
);
3126 status
= ocrdma_create_mq(dev
);
3129 status
= ocrdma_mbx_query_fw_config(dev
);
3132 status
= ocrdma_mbx_query_dev(dev
);
3135 status
= ocrdma_mbx_query_fw_ver(dev
);
3138 status
= ocrdma_mbx_create_ah_tbl(dev
);
3141 status
= ocrdma_mbx_get_phy_info(dev
);
3143 goto info_attrb_err
;
3144 status
= ocrdma_mbx_get_ctrl_attribs(dev
);
3146 goto info_attrb_err
;
3151 ocrdma_mbx_delete_ah_tbl(dev
);
3153 ocrdma_destroy_mq(dev
);
3155 ocrdma_destroy_eqs(dev
);
3157 pr_err("%s() status=%d\n", __func__
, status
);
3161 void ocrdma_cleanup_hw(struct ocrdma_dev
*dev
)
3163 ocrdma_free_pd_pool(dev
);
3164 ocrdma_mbx_delete_ah_tbl(dev
);
3166 /* cleanup the control path */
3167 ocrdma_destroy_mq(dev
);
3169 /* cleanup the eqs */
3170 ocrdma_destroy_eqs(dev
);