1 /* This file is part of the Emulex RoCE Device Driver for
2 * RoCE (RDMA over Converged Ethernet) adapters.
3 * Copyright (C) 2012-2015 Emulex. All rights reserved.
4 * EMULEX and SLI are trademarks of Emulex.
7 * This software is available to you under a choice of one of two licenses.
8 * You may choose to be licensed under the terms of the GNU General Public
9 * License (GPL) Version 2, available from the file COPYING in the main
10 * directory of this source tree, or the BSD license below:
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * - Redistributions of source code must retain the above copyright notice,
17 * this list of conditions and the following disclaimer.
19 * - Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the distribution.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 * Contact Information:
36 * linux-drivers@emulex.com
40 * Costa Mesa, CA 92626
43 #include <linux/dma-mapping.h>
44 #include <rdma/ib_verbs.h>
45 #include <rdma/ib_user_verbs.h>
46 #include <rdma/iw_cm.h>
47 #include <rdma/ib_umem.h>
48 #include <rdma/ib_addr.h>
49 #include <rdma/ib_cache.h>
52 #include "ocrdma_hw.h"
53 #include "ocrdma_verbs.h"
54 #include "ocrdma_abi.h"
56 int ocrdma_query_pkey(struct ib_device
*ibdev
, u8 port
, u16 index
, u16
*pkey
)
65 int ocrdma_query_gid(struct ib_device
*ibdev
, u8 port
,
66 int index
, union ib_gid
*sgid
)
69 struct ocrdma_dev
*dev
;
71 dev
= get_ocrdma_dev(ibdev
);
72 memset(sgid
, 0, sizeof(*sgid
));
73 if (index
>= OCRDMA_MAX_SGID
)
76 ret
= ib_get_cached_gid(ibdev
, port
, index
, sgid
, NULL
);
78 memcpy(sgid
, &zgid
, sizeof(*sgid
));
85 int ocrdma_add_gid(struct ib_device
*device
,
88 const union ib_gid
*gid
,
89 const struct ib_gid_attr
*attr
,
94 int ocrdma_del_gid(struct ib_device
*device
,
101 int ocrdma_query_device(struct ib_device
*ibdev
, struct ib_device_attr
*attr
,
102 struct ib_udata
*uhw
)
104 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibdev
);
106 if (uhw
->inlen
|| uhw
->outlen
)
109 memset(attr
, 0, sizeof *attr
);
110 memcpy(&attr
->fw_ver
, &dev
->attr
.fw_ver
[0],
111 min(sizeof(dev
->attr
.fw_ver
), sizeof(attr
->fw_ver
)));
112 ocrdma_get_guid(dev
, (u8
*)&attr
->sys_image_guid
);
113 attr
->max_mr_size
= dev
->attr
.max_mr_size
;
114 attr
->page_size_cap
= 0xffff000;
115 attr
->vendor_id
= dev
->nic_info
.pdev
->vendor
;
116 attr
->vendor_part_id
= dev
->nic_info
.pdev
->device
;
117 attr
->hw_ver
= dev
->asic_id
;
118 attr
->max_qp
= dev
->attr
.max_qp
;
119 attr
->max_ah
= OCRDMA_MAX_AH
;
120 attr
->max_qp_wr
= dev
->attr
.max_wqe
;
122 attr
->device_cap_flags
= IB_DEVICE_CURR_QP_STATE_MOD
|
123 IB_DEVICE_RC_RNR_NAK_GEN
|
124 IB_DEVICE_SHUTDOWN_PORT
|
125 IB_DEVICE_SYS_IMAGE_GUID
|
126 IB_DEVICE_LOCAL_DMA_LKEY
|
127 IB_DEVICE_MEM_MGT_EXTENSIONS
;
128 attr
->max_sge
= dev
->attr
.max_send_sge
;
129 attr
->max_sge_rd
= attr
->max_sge
;
130 attr
->max_cq
= dev
->attr
.max_cq
;
131 attr
->max_cqe
= dev
->attr
.max_cqe
;
132 attr
->max_mr
= dev
->attr
.max_mr
;
133 attr
->max_mw
= dev
->attr
.max_mw
;
134 attr
->max_pd
= dev
->attr
.max_pd
;
135 attr
->atomic_cap
= 0;
137 attr
->max_map_per_fmr
= 0;
138 attr
->max_qp_rd_atom
=
139 min(dev
->attr
.max_ord_per_qp
, dev
->attr
.max_ird_per_qp
);
140 attr
->max_qp_init_rd_atom
= dev
->attr
.max_ord_per_qp
;
141 attr
->max_srq
= dev
->attr
.max_srq
;
142 attr
->max_srq_sge
= dev
->attr
.max_srq_sge
;
143 attr
->max_srq_wr
= dev
->attr
.max_rqe
;
144 attr
->local_ca_ack_delay
= dev
->attr
.local_ca_ack_delay
;
145 attr
->max_fast_reg_page_list_len
= dev
->attr
.max_pages_per_frmr
;
150 struct net_device
*ocrdma_get_netdev(struct ib_device
*ibdev
, u8 port_num
)
152 struct ocrdma_dev
*dev
;
153 struct net_device
*ndev
= NULL
;
157 dev
= get_ocrdma_dev(ibdev
);
159 ndev
= dev
->nic_info
.netdev
;
168 static inline void get_link_speed_and_width(struct ocrdma_dev
*dev
,
169 u8
*ib_speed
, u8
*ib_width
)
174 status
= ocrdma_mbx_get_link_speed(dev
, &speed
, NULL
);
176 speed
= OCRDMA_PHYS_LINK_SPEED_ZERO
;
179 case OCRDMA_PHYS_LINK_SPEED_1GBPS
:
180 *ib_speed
= IB_SPEED_SDR
;
181 *ib_width
= IB_WIDTH_1X
;
184 case OCRDMA_PHYS_LINK_SPEED_10GBPS
:
185 *ib_speed
= IB_SPEED_QDR
;
186 *ib_width
= IB_WIDTH_1X
;
189 case OCRDMA_PHYS_LINK_SPEED_20GBPS
:
190 *ib_speed
= IB_SPEED_DDR
;
191 *ib_width
= IB_WIDTH_4X
;
194 case OCRDMA_PHYS_LINK_SPEED_40GBPS
:
195 *ib_speed
= IB_SPEED_QDR
;
196 *ib_width
= IB_WIDTH_4X
;
201 *ib_speed
= IB_SPEED_SDR
;
202 *ib_width
= IB_WIDTH_1X
;
206 int ocrdma_query_port(struct ib_device
*ibdev
,
207 u8 port
, struct ib_port_attr
*props
)
209 enum ib_port_state port_state
;
210 struct ocrdma_dev
*dev
;
211 struct net_device
*netdev
;
213 dev
= get_ocrdma_dev(ibdev
);
215 pr_err("%s(%d) invalid_port=0x%x\n", __func__
,
219 netdev
= dev
->nic_info
.netdev
;
220 if (netif_running(netdev
) && netif_oper_up(netdev
)) {
221 port_state
= IB_PORT_ACTIVE
;
222 props
->phys_state
= 5;
224 port_state
= IB_PORT_DOWN
;
225 props
->phys_state
= 3;
227 props
->max_mtu
= IB_MTU_4096
;
228 props
->active_mtu
= iboe_get_mtu(netdev
->mtu
);
233 props
->state
= port_state
;
234 props
->port_cap_flags
=
237 IB_PORT_DEVICE_MGMT_SUP
| IB_PORT_VENDOR_CLASS_SUP
|
238 IB_PORT_IP_BASED_GIDS
;
239 props
->gid_tbl_len
= OCRDMA_MAX_SGID
;
240 props
->pkey_tbl_len
= 1;
241 props
->bad_pkey_cntr
= 0;
242 props
->qkey_viol_cntr
= 0;
243 get_link_speed_and_width(dev
, &props
->active_speed
,
244 &props
->active_width
);
245 props
->max_msg_sz
= 0x80000000;
246 props
->max_vl_num
= 4;
250 int ocrdma_modify_port(struct ib_device
*ibdev
, u8 port
, int mask
,
251 struct ib_port_modify
*props
)
253 struct ocrdma_dev
*dev
;
255 dev
= get_ocrdma_dev(ibdev
);
257 pr_err("%s(%d) invalid_port=0x%x\n", __func__
, dev
->id
, port
);
263 static int ocrdma_add_mmap(struct ocrdma_ucontext
*uctx
, u64 phy_addr
,
266 struct ocrdma_mm
*mm
;
268 mm
= kzalloc(sizeof(*mm
), GFP_KERNEL
);
271 mm
->key
.phy_addr
= phy_addr
;
273 INIT_LIST_HEAD(&mm
->entry
);
275 mutex_lock(&uctx
->mm_list_lock
);
276 list_add_tail(&mm
->entry
, &uctx
->mm_head
);
277 mutex_unlock(&uctx
->mm_list_lock
);
281 static void ocrdma_del_mmap(struct ocrdma_ucontext
*uctx
, u64 phy_addr
,
284 struct ocrdma_mm
*mm
, *tmp
;
286 mutex_lock(&uctx
->mm_list_lock
);
287 list_for_each_entry_safe(mm
, tmp
, &uctx
->mm_head
, entry
) {
288 if (len
!= mm
->key
.len
&& phy_addr
!= mm
->key
.phy_addr
)
291 list_del(&mm
->entry
);
295 mutex_unlock(&uctx
->mm_list_lock
);
298 static bool ocrdma_search_mmap(struct ocrdma_ucontext
*uctx
, u64 phy_addr
,
302 struct ocrdma_mm
*mm
;
304 mutex_lock(&uctx
->mm_list_lock
);
305 list_for_each_entry(mm
, &uctx
->mm_head
, entry
) {
306 if (len
!= mm
->key
.len
&& phy_addr
!= mm
->key
.phy_addr
)
312 mutex_unlock(&uctx
->mm_list_lock
);
317 static u16
_ocrdma_pd_mgr_get_bitmap(struct ocrdma_dev
*dev
, bool dpp_pool
)
319 u16 pd_bitmap_idx
= 0;
320 const unsigned long *pd_bitmap
;
323 pd_bitmap
= dev
->pd_mgr
->pd_dpp_bitmap
;
324 pd_bitmap_idx
= find_first_zero_bit(pd_bitmap
,
325 dev
->pd_mgr
->max_dpp_pd
);
326 __set_bit(pd_bitmap_idx
, dev
->pd_mgr
->pd_dpp_bitmap
);
327 dev
->pd_mgr
->pd_dpp_count
++;
328 if (dev
->pd_mgr
->pd_dpp_count
> dev
->pd_mgr
->pd_dpp_thrsh
)
329 dev
->pd_mgr
->pd_dpp_thrsh
= dev
->pd_mgr
->pd_dpp_count
;
331 pd_bitmap
= dev
->pd_mgr
->pd_norm_bitmap
;
332 pd_bitmap_idx
= find_first_zero_bit(pd_bitmap
,
333 dev
->pd_mgr
->max_normal_pd
);
334 __set_bit(pd_bitmap_idx
, dev
->pd_mgr
->pd_norm_bitmap
);
335 dev
->pd_mgr
->pd_norm_count
++;
336 if (dev
->pd_mgr
->pd_norm_count
> dev
->pd_mgr
->pd_norm_thrsh
)
337 dev
->pd_mgr
->pd_norm_thrsh
= dev
->pd_mgr
->pd_norm_count
;
339 return pd_bitmap_idx
;
342 static int _ocrdma_pd_mgr_put_bitmap(struct ocrdma_dev
*dev
, u16 pd_id
,
348 pd_count
= dpp_pool
? dev
->pd_mgr
->pd_dpp_count
:
349 dev
->pd_mgr
->pd_norm_count
;
354 pd_bit_index
= pd_id
- dev
->pd_mgr
->pd_dpp_start
;
355 if (pd_bit_index
>= dev
->pd_mgr
->max_dpp_pd
) {
358 __clear_bit(pd_bit_index
, dev
->pd_mgr
->pd_dpp_bitmap
);
359 dev
->pd_mgr
->pd_dpp_count
--;
362 pd_bit_index
= pd_id
- dev
->pd_mgr
->pd_norm_start
;
363 if (pd_bit_index
>= dev
->pd_mgr
->max_normal_pd
) {
366 __clear_bit(pd_bit_index
, dev
->pd_mgr
->pd_norm_bitmap
);
367 dev
->pd_mgr
->pd_norm_count
--;
374 static u8
ocrdma_put_pd_num(struct ocrdma_dev
*dev
, u16 pd_id
,
379 mutex_lock(&dev
->dev_lock
);
380 status
= _ocrdma_pd_mgr_put_bitmap(dev
, pd_id
, dpp_pool
);
381 mutex_unlock(&dev
->dev_lock
);
385 static int ocrdma_get_pd_num(struct ocrdma_dev
*dev
, struct ocrdma_pd
*pd
)
390 mutex_lock(&dev
->dev_lock
);
391 if (pd
->dpp_enabled
) {
392 /* try allocating DPP PD, if not available then normal PD */
393 if (dev
->pd_mgr
->pd_dpp_count
< dev
->pd_mgr
->max_dpp_pd
) {
394 pd_idx
= _ocrdma_pd_mgr_get_bitmap(dev
, true);
395 pd
->id
= dev
->pd_mgr
->pd_dpp_start
+ pd_idx
;
396 pd
->dpp_page
= dev
->pd_mgr
->dpp_page_index
+ pd_idx
;
397 } else if (dev
->pd_mgr
->pd_norm_count
<
398 dev
->pd_mgr
->max_normal_pd
) {
399 pd_idx
= _ocrdma_pd_mgr_get_bitmap(dev
, false);
400 pd
->id
= dev
->pd_mgr
->pd_norm_start
+ pd_idx
;
401 pd
->dpp_enabled
= false;
406 if (dev
->pd_mgr
->pd_norm_count
< dev
->pd_mgr
->max_normal_pd
) {
407 pd_idx
= _ocrdma_pd_mgr_get_bitmap(dev
, false);
408 pd
->id
= dev
->pd_mgr
->pd_norm_start
+ pd_idx
;
413 mutex_unlock(&dev
->dev_lock
);
417 static struct ocrdma_pd
*_ocrdma_alloc_pd(struct ocrdma_dev
*dev
,
418 struct ocrdma_ucontext
*uctx
,
419 struct ib_udata
*udata
)
421 struct ocrdma_pd
*pd
= NULL
;
424 pd
= kzalloc(sizeof(*pd
), GFP_KERNEL
);
426 return ERR_PTR(-ENOMEM
);
428 if (udata
&& uctx
&& dev
->attr
.max_dpp_pds
) {
430 ocrdma_get_asic_type(dev
) == OCRDMA_ASIC_GEN_SKH_R
;
432 pd
->dpp_enabled
? (dev
->nic_info
.db_page_size
/
433 dev
->attr
.wqe_size
) : 0;
436 if (dev
->pd_mgr
->pd_prealloc_valid
) {
437 status
= ocrdma_get_pd_num(dev
, pd
);
442 return ERR_PTR(status
);
447 status
= ocrdma_mbx_alloc_pd(dev
, pd
);
449 if (pd
->dpp_enabled
) {
450 pd
->dpp_enabled
= false;
455 return ERR_PTR(status
);
462 static inline int is_ucontext_pd(struct ocrdma_ucontext
*uctx
,
463 struct ocrdma_pd
*pd
)
465 return (uctx
->cntxt_pd
== pd
? true : false);
468 static int _ocrdma_dealloc_pd(struct ocrdma_dev
*dev
,
469 struct ocrdma_pd
*pd
)
473 if (dev
->pd_mgr
->pd_prealloc_valid
)
474 status
= ocrdma_put_pd_num(dev
, pd
->id
, pd
->dpp_enabled
);
476 status
= ocrdma_mbx_dealloc_pd(dev
, pd
);
482 static int ocrdma_alloc_ucontext_pd(struct ocrdma_dev
*dev
,
483 struct ocrdma_ucontext
*uctx
,
484 struct ib_udata
*udata
)
488 uctx
->cntxt_pd
= _ocrdma_alloc_pd(dev
, uctx
, udata
);
489 if (IS_ERR(uctx
->cntxt_pd
)) {
490 status
= PTR_ERR(uctx
->cntxt_pd
);
491 uctx
->cntxt_pd
= NULL
;
495 uctx
->cntxt_pd
->uctx
= uctx
;
496 uctx
->cntxt_pd
->ibpd
.device
= &dev
->ibdev
;
501 static int ocrdma_dealloc_ucontext_pd(struct ocrdma_ucontext
*uctx
)
503 struct ocrdma_pd
*pd
= uctx
->cntxt_pd
;
504 struct ocrdma_dev
*dev
= get_ocrdma_dev(pd
->ibpd
.device
);
506 if (uctx
->pd_in_use
) {
507 pr_err("%s(%d) Freeing in use pdid=0x%x.\n",
508 __func__
, dev
->id
, pd
->id
);
510 uctx
->cntxt_pd
= NULL
;
511 (void)_ocrdma_dealloc_pd(dev
, pd
);
515 static struct ocrdma_pd
*ocrdma_get_ucontext_pd(struct ocrdma_ucontext
*uctx
)
517 struct ocrdma_pd
*pd
= NULL
;
519 mutex_lock(&uctx
->mm_list_lock
);
520 if (!uctx
->pd_in_use
) {
521 uctx
->pd_in_use
= true;
524 mutex_unlock(&uctx
->mm_list_lock
);
529 static void ocrdma_release_ucontext_pd(struct ocrdma_ucontext
*uctx
)
531 mutex_lock(&uctx
->mm_list_lock
);
532 uctx
->pd_in_use
= false;
533 mutex_unlock(&uctx
->mm_list_lock
);
536 struct ib_ucontext
*ocrdma_alloc_ucontext(struct ib_device
*ibdev
,
537 struct ib_udata
*udata
)
540 struct ocrdma_ucontext
*ctx
;
541 struct ocrdma_alloc_ucontext_resp resp
;
542 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibdev
);
543 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
544 u32 map_len
= roundup(sizeof(u32
) * 2048, PAGE_SIZE
);
547 return ERR_PTR(-EFAULT
);
548 ctx
= kzalloc(sizeof(*ctx
), GFP_KERNEL
);
550 return ERR_PTR(-ENOMEM
);
551 INIT_LIST_HEAD(&ctx
->mm_head
);
552 mutex_init(&ctx
->mm_list_lock
);
554 ctx
->ah_tbl
.va
= dma_alloc_coherent(&pdev
->dev
, map_len
,
555 &ctx
->ah_tbl
.pa
, GFP_KERNEL
);
556 if (!ctx
->ah_tbl
.va
) {
558 return ERR_PTR(-ENOMEM
);
560 memset(ctx
->ah_tbl
.va
, 0, map_len
);
561 ctx
->ah_tbl
.len
= map_len
;
563 memset(&resp
, 0, sizeof(resp
));
564 resp
.ah_tbl_len
= ctx
->ah_tbl
.len
;
565 resp
.ah_tbl_page
= virt_to_phys(ctx
->ah_tbl
.va
);
567 status
= ocrdma_add_mmap(ctx
, resp
.ah_tbl_page
, resp
.ah_tbl_len
);
571 status
= ocrdma_alloc_ucontext_pd(dev
, ctx
, udata
);
575 resp
.dev_id
= dev
->id
;
576 resp
.max_inline_data
= dev
->attr
.max_inline_data
;
577 resp
.wqe_size
= dev
->attr
.wqe_size
;
578 resp
.rqe_size
= dev
->attr
.rqe_size
;
579 resp
.dpp_wqe_size
= dev
->attr
.wqe_size
;
581 memcpy(resp
.fw_ver
, dev
->attr
.fw_ver
, sizeof(resp
.fw_ver
));
582 status
= ib_copy_to_udata(udata
, &resp
, sizeof(resp
));
585 return &ctx
->ibucontext
;
589 ocrdma_del_mmap(ctx
, ctx
->ah_tbl
.pa
, ctx
->ah_tbl
.len
);
591 dma_free_coherent(&pdev
->dev
, ctx
->ah_tbl
.len
, ctx
->ah_tbl
.va
,
594 return ERR_PTR(status
);
597 int ocrdma_dealloc_ucontext(struct ib_ucontext
*ibctx
)
600 struct ocrdma_mm
*mm
, *tmp
;
601 struct ocrdma_ucontext
*uctx
= get_ocrdma_ucontext(ibctx
);
602 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibctx
->device
);
603 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
605 status
= ocrdma_dealloc_ucontext_pd(uctx
);
607 ocrdma_del_mmap(uctx
, uctx
->ah_tbl
.pa
, uctx
->ah_tbl
.len
);
608 dma_free_coherent(&pdev
->dev
, uctx
->ah_tbl
.len
, uctx
->ah_tbl
.va
,
611 list_for_each_entry_safe(mm
, tmp
, &uctx
->mm_head
, entry
) {
612 list_del(&mm
->entry
);
619 int ocrdma_mmap(struct ib_ucontext
*context
, struct vm_area_struct
*vma
)
621 struct ocrdma_ucontext
*ucontext
= get_ocrdma_ucontext(context
);
622 struct ocrdma_dev
*dev
= get_ocrdma_dev(context
->device
);
623 unsigned long vm_page
= vma
->vm_pgoff
<< PAGE_SHIFT
;
624 u64 unmapped_db
= (u64
) dev
->nic_info
.unmapped_db
;
625 unsigned long len
= (vma
->vm_end
- vma
->vm_start
);
629 if (vma
->vm_start
& (PAGE_SIZE
- 1))
631 found
= ocrdma_search_mmap(ucontext
, vma
->vm_pgoff
<< PAGE_SHIFT
, len
);
635 if ((vm_page
>= unmapped_db
) && (vm_page
<= (unmapped_db
+
636 dev
->nic_info
.db_total_size
)) &&
637 (len
<= dev
->nic_info
.db_page_size
)) {
638 if (vma
->vm_flags
& VM_READ
)
641 vma
->vm_page_prot
= pgprot_noncached(vma
->vm_page_prot
);
642 status
= io_remap_pfn_range(vma
, vma
->vm_start
, vma
->vm_pgoff
,
643 len
, vma
->vm_page_prot
);
644 } else if (dev
->nic_info
.dpp_unmapped_len
&&
645 (vm_page
>= (u64
) dev
->nic_info
.dpp_unmapped_addr
) &&
646 (vm_page
<= (u64
) (dev
->nic_info
.dpp_unmapped_addr
+
647 dev
->nic_info
.dpp_unmapped_len
)) &&
648 (len
<= dev
->nic_info
.dpp_unmapped_len
)) {
649 if (vma
->vm_flags
& VM_READ
)
652 vma
->vm_page_prot
= pgprot_writecombine(vma
->vm_page_prot
);
653 status
= io_remap_pfn_range(vma
, vma
->vm_start
, vma
->vm_pgoff
,
654 len
, vma
->vm_page_prot
);
656 status
= remap_pfn_range(vma
, vma
->vm_start
,
657 vma
->vm_pgoff
, len
, vma
->vm_page_prot
);
662 static int ocrdma_copy_pd_uresp(struct ocrdma_dev
*dev
, struct ocrdma_pd
*pd
,
663 struct ib_ucontext
*ib_ctx
,
664 struct ib_udata
*udata
)
668 u64 dpp_page_addr
= 0;
670 struct ocrdma_alloc_pd_uresp rsp
;
671 struct ocrdma_ucontext
*uctx
= get_ocrdma_ucontext(ib_ctx
);
673 memset(&rsp
, 0, sizeof(rsp
));
675 rsp
.dpp_enabled
= pd
->dpp_enabled
;
676 db_page_addr
= ocrdma_get_db_addr(dev
, pd
->id
);
677 db_page_size
= dev
->nic_info
.db_page_size
;
679 status
= ocrdma_add_mmap(uctx
, db_page_addr
, db_page_size
);
683 if (pd
->dpp_enabled
) {
684 dpp_page_addr
= dev
->nic_info
.dpp_unmapped_addr
+
685 (pd
->id
* PAGE_SIZE
);
686 status
= ocrdma_add_mmap(uctx
, dpp_page_addr
,
690 rsp
.dpp_page_addr_hi
= upper_32_bits(dpp_page_addr
);
691 rsp
.dpp_page_addr_lo
= dpp_page_addr
;
694 status
= ib_copy_to_udata(udata
, &rsp
, sizeof(rsp
));
703 ocrdma_del_mmap(pd
->uctx
, dpp_page_addr
, PAGE_SIZE
);
705 ocrdma_del_mmap(pd
->uctx
, db_page_addr
, db_page_size
);
709 struct ib_pd
*ocrdma_alloc_pd(struct ib_device
*ibdev
,
710 struct ib_ucontext
*context
,
711 struct ib_udata
*udata
)
713 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibdev
);
714 struct ocrdma_pd
*pd
;
715 struct ocrdma_ucontext
*uctx
= NULL
;
717 u8 is_uctx_pd
= false;
719 if (udata
&& context
) {
720 uctx
= get_ocrdma_ucontext(context
);
721 pd
= ocrdma_get_ucontext_pd(uctx
);
728 pd
= _ocrdma_alloc_pd(dev
, uctx
, udata
);
730 status
= PTR_ERR(pd
);
735 if (udata
&& context
) {
736 status
= ocrdma_copy_pd_uresp(dev
, pd
, context
, udata
);
744 ocrdma_release_ucontext_pd(uctx
);
746 status
= _ocrdma_dealloc_pd(dev
, pd
);
749 return ERR_PTR(status
);
752 int ocrdma_dealloc_pd(struct ib_pd
*ibpd
)
754 struct ocrdma_pd
*pd
= get_ocrdma_pd(ibpd
);
755 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibpd
->device
);
756 struct ocrdma_ucontext
*uctx
= NULL
;
762 u64 dpp_db
= dev
->nic_info
.dpp_unmapped_addr
+
763 (pd
->id
* PAGE_SIZE
);
765 ocrdma_del_mmap(pd
->uctx
, dpp_db
, PAGE_SIZE
);
766 usr_db
= ocrdma_get_db_addr(dev
, pd
->id
);
767 ocrdma_del_mmap(pd
->uctx
, usr_db
, dev
->nic_info
.db_page_size
);
769 if (is_ucontext_pd(uctx
, pd
)) {
770 ocrdma_release_ucontext_pd(uctx
);
774 status
= _ocrdma_dealloc_pd(dev
, pd
);
778 static int ocrdma_alloc_lkey(struct ocrdma_dev
*dev
, struct ocrdma_mr
*mr
,
779 u32 pdid
, int acc
, u32 num_pbls
, u32 addr_check
)
784 mr
->hwmr
.local_rd
= 1;
785 mr
->hwmr
.remote_rd
= (acc
& IB_ACCESS_REMOTE_READ
) ? 1 : 0;
786 mr
->hwmr
.remote_wr
= (acc
& IB_ACCESS_REMOTE_WRITE
) ? 1 : 0;
787 mr
->hwmr
.local_wr
= (acc
& IB_ACCESS_LOCAL_WRITE
) ? 1 : 0;
788 mr
->hwmr
.mw_bind
= (acc
& IB_ACCESS_MW_BIND
) ? 1 : 0;
789 mr
->hwmr
.remote_atomic
= (acc
& IB_ACCESS_REMOTE_ATOMIC
) ? 1 : 0;
790 mr
->hwmr
.num_pbls
= num_pbls
;
792 status
= ocrdma_mbx_alloc_lkey(dev
, &mr
->hwmr
, pdid
, addr_check
);
796 mr
->ibmr
.lkey
= mr
->hwmr
.lkey
;
797 if (mr
->hwmr
.remote_wr
|| mr
->hwmr
.remote_rd
)
798 mr
->ibmr
.rkey
= mr
->hwmr
.lkey
;
802 struct ib_mr
*ocrdma_get_dma_mr(struct ib_pd
*ibpd
, int acc
)
805 struct ocrdma_mr
*mr
;
806 struct ocrdma_pd
*pd
= get_ocrdma_pd(ibpd
);
807 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibpd
->device
);
809 if (acc
& IB_ACCESS_REMOTE_WRITE
&& !(acc
& IB_ACCESS_LOCAL_WRITE
)) {
810 pr_err("%s err, invalid access rights\n", __func__
);
811 return ERR_PTR(-EINVAL
);
814 mr
= kzalloc(sizeof(*mr
), GFP_KERNEL
);
816 return ERR_PTR(-ENOMEM
);
818 status
= ocrdma_alloc_lkey(dev
, mr
, pd
->id
, acc
, 0,
819 OCRDMA_ADDR_CHECK_DISABLE
);
822 return ERR_PTR(status
);
828 static void ocrdma_free_mr_pbl_tbl(struct ocrdma_dev
*dev
,
829 struct ocrdma_hw_mr
*mr
)
831 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
835 for (i
= 0; i
< mr
->num_pbls
; i
++) {
836 if (!mr
->pbl_table
[i
].va
)
838 dma_free_coherent(&pdev
->dev
, mr
->pbl_size
,
840 mr
->pbl_table
[i
].pa
);
842 kfree(mr
->pbl_table
);
843 mr
->pbl_table
= NULL
;
847 static int ocrdma_get_pbl_info(struct ocrdma_dev
*dev
, struct ocrdma_mr
*mr
,
856 pbl_size
= OCRDMA_MIN_HPAGE_SIZE
* (1 << idx
);
857 if (pbl_size
> MAX_OCRDMA_PBL_SIZE
) {
861 num_pbls
= roundup(num_pbes
, (pbl_size
/ sizeof(u64
)));
862 num_pbls
= num_pbls
/ (pbl_size
/ sizeof(u64
));
864 } while (num_pbls
>= dev
->attr
.max_num_mr_pbl
);
866 mr
->hwmr
.num_pbes
= num_pbes
;
867 mr
->hwmr
.num_pbls
= num_pbls
;
868 mr
->hwmr
.pbl_size
= pbl_size
;
872 static int ocrdma_build_pbl_tbl(struct ocrdma_dev
*dev
, struct ocrdma_hw_mr
*mr
)
876 u32 dma_len
= mr
->pbl_size
;
877 struct pci_dev
*pdev
= dev
->nic_info
.pdev
;
881 mr
->pbl_table
= kzalloc(sizeof(struct ocrdma_pbl
) *
882 mr
->num_pbls
, GFP_KERNEL
);
887 for (i
= 0; i
< mr
->num_pbls
; i
++) {
888 va
= dma_alloc_coherent(&pdev
->dev
, dma_len
, &pa
, GFP_KERNEL
);
890 ocrdma_free_mr_pbl_tbl(dev
, mr
);
894 memset(va
, 0, dma_len
);
895 mr
->pbl_table
[i
].va
= va
;
896 mr
->pbl_table
[i
].pa
= pa
;
901 static void build_user_pbes(struct ocrdma_dev
*dev
, struct ocrdma_mr
*mr
,
904 struct ocrdma_pbe
*pbe
;
905 struct scatterlist
*sg
;
906 struct ocrdma_pbl
*pbl_tbl
= mr
->hwmr
.pbl_table
;
907 struct ib_umem
*umem
= mr
->umem
;
908 int shift
, pg_cnt
, pages
, pbe_cnt
, entry
, total_num_pbes
= 0;
910 if (!mr
->hwmr
.num_pbes
)
913 pbe
= (struct ocrdma_pbe
*)pbl_tbl
->va
;
916 shift
= ilog2(umem
->page_size
);
918 for_each_sg(umem
->sg_head
.sgl
, sg
, umem
->nmap
, entry
) {
919 pages
= sg_dma_len(sg
) >> shift
;
920 for (pg_cnt
= 0; pg_cnt
< pages
; pg_cnt
++) {
921 /* store the page address in pbe */
923 cpu_to_le32(sg_dma_address
925 (umem
->page_size
* pg_cnt
));
927 cpu_to_le32(upper_32_bits
930 umem
->page_size
* pg_cnt
)));
935 /* if done building pbes, issue the mbx cmd. */
936 if (total_num_pbes
== num_pbes
)
939 /* if the given pbl is full storing the pbes,
943 (mr
->hwmr
.pbl_size
/ sizeof(u64
))) {
945 pbe
= (struct ocrdma_pbe
*)pbl_tbl
->va
;
953 struct ib_mr
*ocrdma_reg_user_mr(struct ib_pd
*ibpd
, u64 start
, u64 len
,
954 u64 usr_addr
, int acc
, struct ib_udata
*udata
)
956 int status
= -ENOMEM
;
957 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibpd
->device
);
958 struct ocrdma_mr
*mr
;
959 struct ocrdma_pd
*pd
;
962 pd
= get_ocrdma_pd(ibpd
);
964 if (acc
& IB_ACCESS_REMOTE_WRITE
&& !(acc
& IB_ACCESS_LOCAL_WRITE
))
965 return ERR_PTR(-EINVAL
);
967 mr
= kzalloc(sizeof(*mr
), GFP_KERNEL
);
969 return ERR_PTR(status
);
970 mr
->umem
= ib_umem_get(ibpd
->uobject
->context
, start
, len
, acc
, 0);
971 if (IS_ERR(mr
->umem
)) {
975 num_pbes
= ib_umem_page_count(mr
->umem
);
976 status
= ocrdma_get_pbl_info(dev
, mr
, num_pbes
);
980 mr
->hwmr
.pbe_size
= mr
->umem
->page_size
;
981 mr
->hwmr
.fbo
= ib_umem_offset(mr
->umem
);
982 mr
->hwmr
.va
= usr_addr
;
984 mr
->hwmr
.remote_wr
= (acc
& IB_ACCESS_REMOTE_WRITE
) ? 1 : 0;
985 mr
->hwmr
.remote_rd
= (acc
& IB_ACCESS_REMOTE_READ
) ? 1 : 0;
986 mr
->hwmr
.local_wr
= (acc
& IB_ACCESS_LOCAL_WRITE
) ? 1 : 0;
987 mr
->hwmr
.local_rd
= 1;
988 mr
->hwmr
.remote_atomic
= (acc
& IB_ACCESS_REMOTE_ATOMIC
) ? 1 : 0;
989 status
= ocrdma_build_pbl_tbl(dev
, &mr
->hwmr
);
992 build_user_pbes(dev
, mr
, num_pbes
);
993 status
= ocrdma_reg_mr(dev
, &mr
->hwmr
, pd
->id
, acc
);
996 mr
->ibmr
.lkey
= mr
->hwmr
.lkey
;
997 if (mr
->hwmr
.remote_wr
|| mr
->hwmr
.remote_rd
)
998 mr
->ibmr
.rkey
= mr
->hwmr
.lkey
;
1003 ocrdma_free_mr_pbl_tbl(dev
, &mr
->hwmr
);
1006 return ERR_PTR(status
);
1009 int ocrdma_dereg_mr(struct ib_mr
*ib_mr
)
1011 struct ocrdma_mr
*mr
= get_ocrdma_mr(ib_mr
);
1012 struct ocrdma_dev
*dev
= get_ocrdma_dev(ib_mr
->device
);
1014 (void) ocrdma_mbx_dealloc_lkey(dev
, mr
->hwmr
.fr_mr
, mr
->hwmr
.lkey
);
1017 ocrdma_free_mr_pbl_tbl(dev
, &mr
->hwmr
);
1019 /* it could be user registered memory. */
1021 ib_umem_release(mr
->umem
);
1024 /* Don't stop cleanup, in case FW is unresponsive */
1025 if (dev
->mqe_ctx
.fw_error_state
) {
1026 pr_err("%s(%d) fw not responding.\n",
1032 static int ocrdma_copy_cq_uresp(struct ocrdma_dev
*dev
, struct ocrdma_cq
*cq
,
1033 struct ib_udata
*udata
,
1034 struct ib_ucontext
*ib_ctx
)
1037 struct ocrdma_ucontext
*uctx
= get_ocrdma_ucontext(ib_ctx
);
1038 struct ocrdma_create_cq_uresp uresp
;
1040 memset(&uresp
, 0, sizeof(uresp
));
1041 uresp
.cq_id
= cq
->id
;
1042 uresp
.page_size
= PAGE_ALIGN(cq
->len
);
1043 uresp
.num_pages
= 1;
1044 uresp
.max_hw_cqe
= cq
->max_hw_cqe
;
1045 uresp
.page_addr
[0] = virt_to_phys(cq
->va
);
1046 uresp
.db_page_addr
= ocrdma_get_db_addr(dev
, uctx
->cntxt_pd
->id
);
1047 uresp
.db_page_size
= dev
->nic_info
.db_page_size
;
1048 uresp
.phase_change
= cq
->phase_change
? 1 : 0;
1049 status
= ib_copy_to_udata(udata
, &uresp
, sizeof(uresp
));
1051 pr_err("%s(%d) copy error cqid=0x%x.\n",
1052 __func__
, dev
->id
, cq
->id
);
1055 status
= ocrdma_add_mmap(uctx
, uresp
.db_page_addr
, uresp
.db_page_size
);
1058 status
= ocrdma_add_mmap(uctx
, uresp
.page_addr
[0], uresp
.page_size
);
1060 ocrdma_del_mmap(uctx
, uresp
.db_page_addr
, uresp
.db_page_size
);
1063 cq
->ucontext
= uctx
;
1068 struct ib_cq
*ocrdma_create_cq(struct ib_device
*ibdev
,
1069 const struct ib_cq_init_attr
*attr
,
1070 struct ib_ucontext
*ib_ctx
,
1071 struct ib_udata
*udata
)
1073 int entries
= attr
->cqe
;
1074 struct ocrdma_cq
*cq
;
1075 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibdev
);
1076 struct ocrdma_ucontext
*uctx
= NULL
;
1079 struct ocrdma_create_cq_ureq ureq
;
1082 return ERR_PTR(-EINVAL
);
1085 if (ib_copy_from_udata(&ureq
, udata
, sizeof(ureq
)))
1086 return ERR_PTR(-EFAULT
);
1089 cq
= kzalloc(sizeof(*cq
), GFP_KERNEL
);
1091 return ERR_PTR(-ENOMEM
);
1093 spin_lock_init(&cq
->cq_lock
);
1094 spin_lock_init(&cq
->comp_handler_lock
);
1095 INIT_LIST_HEAD(&cq
->sq_head
);
1096 INIT_LIST_HEAD(&cq
->rq_head
);
1099 uctx
= get_ocrdma_ucontext(ib_ctx
);
1100 pd_id
= uctx
->cntxt_pd
->id
;
1103 status
= ocrdma_mbx_create_cq(dev
, cq
, entries
, ureq
.dpp_cq
, pd_id
);
1106 return ERR_PTR(status
);
1109 status
= ocrdma_copy_cq_uresp(dev
, cq
, udata
, ib_ctx
);
1113 cq
->phase
= OCRDMA_CQE_VALID
;
1114 dev
->cq_tbl
[cq
->id
] = cq
;
1118 ocrdma_mbx_destroy_cq(dev
, cq
);
1120 return ERR_PTR(status
);
1123 int ocrdma_resize_cq(struct ib_cq
*ibcq
, int new_cnt
,
1124 struct ib_udata
*udata
)
1127 struct ocrdma_cq
*cq
= get_ocrdma_cq(ibcq
);
1129 if (new_cnt
< 1 || new_cnt
> cq
->max_hw_cqe
) {
1133 ibcq
->cqe
= new_cnt
;
1137 static void ocrdma_flush_cq(struct ocrdma_cq
*cq
)
1140 int valid_count
= 0;
1141 unsigned long flags
;
1143 struct ocrdma_dev
*dev
= get_ocrdma_dev(cq
->ibcq
.device
);
1144 struct ocrdma_cqe
*cqe
= NULL
;
1147 cqe_cnt
= cq
->cqe_cnt
;
1149 /* Last irq might have scheduled a polling thread
1150 * sync-up with it before hard flushing.
1152 spin_lock_irqsave(&cq
->cq_lock
, flags
);
1154 if (is_cqe_valid(cq
, cqe
))
1159 ocrdma_ring_cq_db(dev
, cq
->id
, false, false, valid_count
);
1160 spin_unlock_irqrestore(&cq
->cq_lock
, flags
);
1163 int ocrdma_destroy_cq(struct ib_cq
*ibcq
)
1165 struct ocrdma_cq
*cq
= get_ocrdma_cq(ibcq
);
1166 struct ocrdma_eq
*eq
= NULL
;
1167 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibcq
->device
);
1171 dev
->cq_tbl
[cq
->id
] = NULL
;
1172 indx
= ocrdma_get_eq_table_index(dev
, cq
->eqn
);
1173 if (indx
== -EINVAL
)
1176 eq
= &dev
->eq_tbl
[indx
];
1177 irq
= ocrdma_get_irq(dev
, eq
);
1178 synchronize_irq(irq
);
1179 ocrdma_flush_cq(cq
);
1181 (void)ocrdma_mbx_destroy_cq(dev
, cq
);
1183 pdid
= cq
->ucontext
->cntxt_pd
->id
;
1184 ocrdma_del_mmap(cq
->ucontext
, (u64
) cq
->pa
,
1185 PAGE_ALIGN(cq
->len
));
1186 ocrdma_del_mmap(cq
->ucontext
,
1187 ocrdma_get_db_addr(dev
, pdid
),
1188 dev
->nic_info
.db_page_size
);
1195 static int ocrdma_add_qpn_map(struct ocrdma_dev
*dev
, struct ocrdma_qp
*qp
)
1197 int status
= -EINVAL
;
1199 if (qp
->id
< OCRDMA_MAX_QP
&& dev
->qp_tbl
[qp
->id
] == NULL
) {
1200 dev
->qp_tbl
[qp
->id
] = qp
;
1206 static void ocrdma_del_qpn_map(struct ocrdma_dev
*dev
, struct ocrdma_qp
*qp
)
1208 dev
->qp_tbl
[qp
->id
] = NULL
;
1211 static int ocrdma_check_qp_params(struct ib_pd
*ibpd
, struct ocrdma_dev
*dev
,
1212 struct ib_qp_init_attr
*attrs
)
1214 if ((attrs
->qp_type
!= IB_QPT_GSI
) &&
1215 (attrs
->qp_type
!= IB_QPT_RC
) &&
1216 (attrs
->qp_type
!= IB_QPT_UC
) &&
1217 (attrs
->qp_type
!= IB_QPT_UD
)) {
1218 pr_err("%s(%d) unsupported qp type=0x%x requested\n",
1219 __func__
, dev
->id
, attrs
->qp_type
);
1222 /* Skip the check for QP1 to support CM size of 128 */
1223 if ((attrs
->qp_type
!= IB_QPT_GSI
) &&
1224 (attrs
->cap
.max_send_wr
> dev
->attr
.max_wqe
)) {
1225 pr_err("%s(%d) unsupported send_wr=0x%x requested\n",
1226 __func__
, dev
->id
, attrs
->cap
.max_send_wr
);
1227 pr_err("%s(%d) supported send_wr=0x%x\n",
1228 __func__
, dev
->id
, dev
->attr
.max_wqe
);
1231 if (!attrs
->srq
&& (attrs
->cap
.max_recv_wr
> dev
->attr
.max_rqe
)) {
1232 pr_err("%s(%d) unsupported recv_wr=0x%x requested\n",
1233 __func__
, dev
->id
, attrs
->cap
.max_recv_wr
);
1234 pr_err("%s(%d) supported recv_wr=0x%x\n",
1235 __func__
, dev
->id
, dev
->attr
.max_rqe
);
1238 if (attrs
->cap
.max_inline_data
> dev
->attr
.max_inline_data
) {
1239 pr_err("%s(%d) unsupported inline data size=0x%x requested\n",
1240 __func__
, dev
->id
, attrs
->cap
.max_inline_data
);
1241 pr_err("%s(%d) supported inline data size=0x%x\n",
1242 __func__
, dev
->id
, dev
->attr
.max_inline_data
);
1245 if (attrs
->cap
.max_send_sge
> dev
->attr
.max_send_sge
) {
1246 pr_err("%s(%d) unsupported send_sge=0x%x requested\n",
1247 __func__
, dev
->id
, attrs
->cap
.max_send_sge
);
1248 pr_err("%s(%d) supported send_sge=0x%x\n",
1249 __func__
, dev
->id
, dev
->attr
.max_send_sge
);
1252 if (attrs
->cap
.max_recv_sge
> dev
->attr
.max_recv_sge
) {
1253 pr_err("%s(%d) unsupported recv_sge=0x%x requested\n",
1254 __func__
, dev
->id
, attrs
->cap
.max_recv_sge
);
1255 pr_err("%s(%d) supported recv_sge=0x%x\n",
1256 __func__
, dev
->id
, dev
->attr
.max_recv_sge
);
1259 /* unprivileged user space cannot create special QP */
1260 if (ibpd
->uobject
&& attrs
->qp_type
== IB_QPT_GSI
) {
1262 ("%s(%d) Userspace can't create special QPs of type=0x%x\n",
1263 __func__
, dev
->id
, attrs
->qp_type
);
1266 /* allow creating only one GSI type of QP */
1267 if (attrs
->qp_type
== IB_QPT_GSI
&& dev
->gsi_qp_created
) {
1268 pr_err("%s(%d) GSI special QPs already created.\n",
1272 /* verify consumer QPs are not trying to use GSI QP's CQ */
1273 if ((attrs
->qp_type
!= IB_QPT_GSI
) && (dev
->gsi_qp_created
)) {
1274 if ((dev
->gsi_sqcq
== get_ocrdma_cq(attrs
->send_cq
)) ||
1275 (dev
->gsi_rqcq
== get_ocrdma_cq(attrs
->recv_cq
))) {
1276 pr_err("%s(%d) Consumer QP cannot use GSI CQs.\n",
1284 static int ocrdma_copy_qp_uresp(struct ocrdma_qp
*qp
,
1285 struct ib_udata
*udata
, int dpp_offset
,
1286 int dpp_credit_lmt
, int srq
)
1290 struct ocrdma_create_qp_uresp uresp
;
1291 struct ocrdma_pd
*pd
= qp
->pd
;
1292 struct ocrdma_dev
*dev
= get_ocrdma_dev(pd
->ibpd
.device
);
1294 memset(&uresp
, 0, sizeof(uresp
));
1295 usr_db
= dev
->nic_info
.unmapped_db
+
1296 (pd
->id
* dev
->nic_info
.db_page_size
);
1297 uresp
.qp_id
= qp
->id
;
1298 uresp
.sq_dbid
= qp
->sq
.dbid
;
1299 uresp
.num_sq_pages
= 1;
1300 uresp
.sq_page_size
= PAGE_ALIGN(qp
->sq
.len
);
1301 uresp
.sq_page_addr
[0] = virt_to_phys(qp
->sq
.va
);
1302 uresp
.num_wqe_allocated
= qp
->sq
.max_cnt
;
1304 uresp
.rq_dbid
= qp
->rq
.dbid
;
1305 uresp
.num_rq_pages
= 1;
1306 uresp
.rq_page_size
= PAGE_ALIGN(qp
->rq
.len
);
1307 uresp
.rq_page_addr
[0] = virt_to_phys(qp
->rq
.va
);
1308 uresp
.num_rqe_allocated
= qp
->rq
.max_cnt
;
1310 uresp
.db_page_addr
= usr_db
;
1311 uresp
.db_page_size
= dev
->nic_info
.db_page_size
;
1312 uresp
.db_sq_offset
= OCRDMA_DB_GEN2_SQ_OFFSET
;
1313 uresp
.db_rq_offset
= OCRDMA_DB_GEN2_RQ_OFFSET
;
1314 uresp
.db_shift
= OCRDMA_DB_RQ_SHIFT
;
1316 if (qp
->dpp_enabled
) {
1317 uresp
.dpp_credit
= dpp_credit_lmt
;
1318 uresp
.dpp_offset
= dpp_offset
;
1320 status
= ib_copy_to_udata(udata
, &uresp
, sizeof(uresp
));
1322 pr_err("%s(%d) user copy error.\n", __func__
, dev
->id
);
1325 status
= ocrdma_add_mmap(pd
->uctx
, uresp
.sq_page_addr
[0],
1326 uresp
.sq_page_size
);
1331 status
= ocrdma_add_mmap(pd
->uctx
, uresp
.rq_page_addr
[0],
1332 uresp
.rq_page_size
);
1338 ocrdma_del_mmap(pd
->uctx
, uresp
.sq_page_addr
[0], uresp
.sq_page_size
);
1343 static void ocrdma_set_qp_db(struct ocrdma_dev
*dev
, struct ocrdma_qp
*qp
,
1344 struct ocrdma_pd
*pd
)
1346 if (ocrdma_get_asic_type(dev
) == OCRDMA_ASIC_GEN_SKH_R
) {
1347 qp
->sq_db
= dev
->nic_info
.db
+
1348 (pd
->id
* dev
->nic_info
.db_page_size
) +
1349 OCRDMA_DB_GEN2_SQ_OFFSET
;
1350 qp
->rq_db
= dev
->nic_info
.db
+
1351 (pd
->id
* dev
->nic_info
.db_page_size
) +
1352 OCRDMA_DB_GEN2_RQ_OFFSET
;
1354 qp
->sq_db
= dev
->nic_info
.db
+
1355 (pd
->id
* dev
->nic_info
.db_page_size
) +
1356 OCRDMA_DB_SQ_OFFSET
;
1357 qp
->rq_db
= dev
->nic_info
.db
+
1358 (pd
->id
* dev
->nic_info
.db_page_size
) +
1359 OCRDMA_DB_RQ_OFFSET
;
1363 static int ocrdma_alloc_wr_id_tbl(struct ocrdma_qp
*qp
)
1366 kzalloc(sizeof(*(qp
->wqe_wr_id_tbl
)) * qp
->sq
.max_cnt
,
1368 if (qp
->wqe_wr_id_tbl
== NULL
)
1371 kzalloc(sizeof(u64
) * qp
->rq
.max_cnt
, GFP_KERNEL
);
1372 if (qp
->rqe_wr_id_tbl
== NULL
)
1378 static void ocrdma_set_qp_init_params(struct ocrdma_qp
*qp
,
1379 struct ocrdma_pd
*pd
,
1380 struct ib_qp_init_attr
*attrs
)
1383 spin_lock_init(&qp
->q_lock
);
1384 INIT_LIST_HEAD(&qp
->sq_entry
);
1385 INIT_LIST_HEAD(&qp
->rq_entry
);
1387 qp
->qp_type
= attrs
->qp_type
;
1388 qp
->cap_flags
= OCRDMA_QP_INB_RD
| OCRDMA_QP_INB_WR
;
1389 qp
->max_inline_data
= attrs
->cap
.max_inline_data
;
1390 qp
->sq
.max_sges
= attrs
->cap
.max_send_sge
;
1391 qp
->rq
.max_sges
= attrs
->cap
.max_recv_sge
;
1392 qp
->state
= OCRDMA_QPS_RST
;
1393 qp
->signaled
= (attrs
->sq_sig_type
== IB_SIGNAL_ALL_WR
) ? true : false;
1396 static void ocrdma_store_gsi_qp_cq(struct ocrdma_dev
*dev
,
1397 struct ib_qp_init_attr
*attrs
)
1399 if (attrs
->qp_type
== IB_QPT_GSI
) {
1400 dev
->gsi_qp_created
= 1;
1401 dev
->gsi_sqcq
= get_ocrdma_cq(attrs
->send_cq
);
1402 dev
->gsi_rqcq
= get_ocrdma_cq(attrs
->recv_cq
);
1406 struct ib_qp
*ocrdma_create_qp(struct ib_pd
*ibpd
,
1407 struct ib_qp_init_attr
*attrs
,
1408 struct ib_udata
*udata
)
1411 struct ocrdma_pd
*pd
= get_ocrdma_pd(ibpd
);
1412 struct ocrdma_qp
*qp
;
1413 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibpd
->device
);
1414 struct ocrdma_create_qp_ureq ureq
;
1415 u16 dpp_credit_lmt
, dpp_offset
;
1417 status
= ocrdma_check_qp_params(ibpd
, dev
, attrs
);
1421 memset(&ureq
, 0, sizeof(ureq
));
1423 if (ib_copy_from_udata(&ureq
, udata
, sizeof(ureq
)))
1424 return ERR_PTR(-EFAULT
);
1426 qp
= kzalloc(sizeof(*qp
), GFP_KERNEL
);
1431 ocrdma_set_qp_init_params(qp
, pd
, attrs
);
1433 qp
->cap_flags
|= (OCRDMA_QP_MW_BIND
| OCRDMA_QP_LKEY0
|
1434 OCRDMA_QP_FAST_REG
);
1436 mutex_lock(&dev
->dev_lock
);
1437 status
= ocrdma_mbx_create_qp(qp
, attrs
, ureq
.enable_dpp_cq
,
1439 &dpp_offset
, &dpp_credit_lmt
);
1443 /* user space QP's wr_id table are managed in library */
1444 if (udata
== NULL
) {
1445 status
= ocrdma_alloc_wr_id_tbl(qp
);
1450 status
= ocrdma_add_qpn_map(dev
, qp
);
1453 ocrdma_set_qp_db(dev
, qp
, pd
);
1455 status
= ocrdma_copy_qp_uresp(qp
, udata
, dpp_offset
,
1457 (attrs
->srq
!= NULL
));
1461 ocrdma_store_gsi_qp_cq(dev
, attrs
);
1462 qp
->ibqp
.qp_num
= qp
->id
;
1463 mutex_unlock(&dev
->dev_lock
);
1467 ocrdma_del_qpn_map(dev
, qp
);
1469 ocrdma_mbx_destroy_qp(dev
, qp
);
1471 mutex_unlock(&dev
->dev_lock
);
1472 kfree(qp
->wqe_wr_id_tbl
);
1473 kfree(qp
->rqe_wr_id_tbl
);
1475 pr_err("%s(%d) error=%d\n", __func__
, dev
->id
, status
);
1477 return ERR_PTR(status
);
1480 int _ocrdma_modify_qp(struct ib_qp
*ibqp
, struct ib_qp_attr
*attr
,
1484 struct ocrdma_qp
*qp
;
1485 struct ocrdma_dev
*dev
;
1486 enum ib_qp_state old_qps
;
1488 qp
= get_ocrdma_qp(ibqp
);
1489 dev
= get_ocrdma_dev(ibqp
->device
);
1490 if (attr_mask
& IB_QP_STATE
)
1491 status
= ocrdma_qp_state_change(qp
, attr
->qp_state
, &old_qps
);
1492 /* if new and previous states are same hw doesn't need to
1497 status
= ocrdma_mbx_modify_qp(dev
, qp
, attr
, attr_mask
);
1502 int ocrdma_modify_qp(struct ib_qp
*ibqp
, struct ib_qp_attr
*attr
,
1503 int attr_mask
, struct ib_udata
*udata
)
1505 unsigned long flags
;
1506 int status
= -EINVAL
;
1507 struct ocrdma_qp
*qp
;
1508 struct ocrdma_dev
*dev
;
1509 enum ib_qp_state old_qps
, new_qps
;
1511 qp
= get_ocrdma_qp(ibqp
);
1512 dev
= get_ocrdma_dev(ibqp
->device
);
1514 /* syncronize with multiple context trying to change, retrive qps */
1515 mutex_lock(&dev
->dev_lock
);
1516 /* syncronize with wqe, rqe posting and cqe processing contexts */
1517 spin_lock_irqsave(&qp
->q_lock
, flags
);
1518 old_qps
= get_ibqp_state(qp
->state
);
1519 if (attr_mask
& IB_QP_STATE
)
1520 new_qps
= attr
->qp_state
;
1523 spin_unlock_irqrestore(&qp
->q_lock
, flags
);
1525 if (!ib_modify_qp_is_ok(old_qps
, new_qps
, ibqp
->qp_type
, attr_mask
,
1526 IB_LINK_LAYER_ETHERNET
)) {
1527 pr_err("%s(%d) invalid attribute mask=0x%x specified for\n"
1528 "qpn=0x%x of type=0x%x old_qps=0x%x, new_qps=0x%x\n",
1529 __func__
, dev
->id
, attr_mask
, qp
->id
, ibqp
->qp_type
,
1534 status
= _ocrdma_modify_qp(ibqp
, attr
, attr_mask
);
1538 mutex_unlock(&dev
->dev_lock
);
1542 static enum ib_mtu
ocrdma_mtu_int_to_enum(u16 mtu
)
1560 static int ocrdma_to_ib_qp_acc_flags(int qp_cap_flags
)
1562 int ib_qp_acc_flags
= 0;
1564 if (qp_cap_flags
& OCRDMA_QP_INB_WR
)
1565 ib_qp_acc_flags
|= IB_ACCESS_REMOTE_WRITE
;
1566 if (qp_cap_flags
& OCRDMA_QP_INB_RD
)
1567 ib_qp_acc_flags
|= IB_ACCESS_LOCAL_WRITE
;
1568 return ib_qp_acc_flags
;
1571 int ocrdma_query_qp(struct ib_qp
*ibqp
,
1572 struct ib_qp_attr
*qp_attr
,
1573 int attr_mask
, struct ib_qp_init_attr
*qp_init_attr
)
1577 struct ocrdma_qp_params params
;
1578 struct ocrdma_qp
*qp
= get_ocrdma_qp(ibqp
);
1579 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibqp
->device
);
1581 memset(¶ms
, 0, sizeof(params
));
1582 mutex_lock(&dev
->dev_lock
);
1583 status
= ocrdma_mbx_query_qp(dev
, qp
, ¶ms
);
1584 mutex_unlock(&dev
->dev_lock
);
1587 if (qp
->qp_type
== IB_QPT_UD
)
1588 qp_attr
->qkey
= params
.qkey
;
1590 ocrdma_mtu_int_to_enum(params
.path_mtu_pkey_indx
&
1591 OCRDMA_QP_PARAMS_PATH_MTU_MASK
) >>
1592 OCRDMA_QP_PARAMS_PATH_MTU_SHIFT
;
1593 qp_attr
->path_mig_state
= IB_MIG_MIGRATED
;
1594 qp_attr
->rq_psn
= params
.hop_lmt_rq_psn
& OCRDMA_QP_PARAMS_RQ_PSN_MASK
;
1595 qp_attr
->sq_psn
= params
.tclass_sq_psn
& OCRDMA_QP_PARAMS_SQ_PSN_MASK
;
1596 qp_attr
->dest_qp_num
=
1597 params
.ack_to_rnr_rtc_dest_qpn
& OCRDMA_QP_PARAMS_DEST_QPN_MASK
;
1599 qp_attr
->qp_access_flags
= ocrdma_to_ib_qp_acc_flags(qp
->cap_flags
);
1600 qp_attr
->cap
.max_send_wr
= qp
->sq
.max_cnt
- 1;
1601 qp_attr
->cap
.max_recv_wr
= qp
->rq
.max_cnt
- 1;
1602 qp_attr
->cap
.max_send_sge
= qp
->sq
.max_sges
;
1603 qp_attr
->cap
.max_recv_sge
= qp
->rq
.max_sges
;
1604 qp_attr
->cap
.max_inline_data
= qp
->max_inline_data
;
1605 qp_init_attr
->cap
= qp_attr
->cap
;
1606 memcpy(&qp_attr
->ah_attr
.grh
.dgid
, ¶ms
.dgid
[0],
1607 sizeof(params
.dgid
));
1608 qp_attr
->ah_attr
.grh
.flow_label
= params
.rnt_rc_sl_fl
&
1609 OCRDMA_QP_PARAMS_FLOW_LABEL_MASK
;
1610 qp_attr
->ah_attr
.grh
.sgid_index
= qp
->sgid_idx
;
1611 qp_attr
->ah_attr
.grh
.hop_limit
= (params
.hop_lmt_rq_psn
&
1612 OCRDMA_QP_PARAMS_HOP_LMT_MASK
) >>
1613 OCRDMA_QP_PARAMS_HOP_LMT_SHIFT
;
1614 qp_attr
->ah_attr
.grh
.traffic_class
= (params
.tclass_sq_psn
&
1615 OCRDMA_QP_PARAMS_TCLASS_MASK
) >>
1616 OCRDMA_QP_PARAMS_TCLASS_SHIFT
;
1618 qp_attr
->ah_attr
.ah_flags
= IB_AH_GRH
;
1619 qp_attr
->ah_attr
.port_num
= 1;
1620 qp_attr
->ah_attr
.sl
= (params
.rnt_rc_sl_fl
&
1621 OCRDMA_QP_PARAMS_SL_MASK
) >>
1622 OCRDMA_QP_PARAMS_SL_SHIFT
;
1623 qp_attr
->timeout
= (params
.ack_to_rnr_rtc_dest_qpn
&
1624 OCRDMA_QP_PARAMS_ACK_TIMEOUT_MASK
) >>
1625 OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT
;
1626 qp_attr
->rnr_retry
= (params
.ack_to_rnr_rtc_dest_qpn
&
1627 OCRDMA_QP_PARAMS_RNR_RETRY_CNT_MASK
) >>
1628 OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT
;
1629 qp_attr
->retry_cnt
=
1630 (params
.rnt_rc_sl_fl
& OCRDMA_QP_PARAMS_RETRY_CNT_MASK
) >>
1631 OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT
;
1632 qp_attr
->min_rnr_timer
= 0;
1633 qp_attr
->pkey_index
= 0;
1634 qp_attr
->port_num
= 1;
1635 qp_attr
->ah_attr
.src_path_bits
= 0;
1636 qp_attr
->ah_attr
.static_rate
= 0;
1637 qp_attr
->alt_pkey_index
= 0;
1638 qp_attr
->alt_port_num
= 0;
1639 qp_attr
->alt_timeout
= 0;
1640 memset(&qp_attr
->alt_ah_attr
, 0, sizeof(qp_attr
->alt_ah_attr
));
1641 qp_state
= (params
.max_sge_recv_flags
& OCRDMA_QP_PARAMS_STATE_MASK
) >>
1642 OCRDMA_QP_PARAMS_STATE_SHIFT
;
1643 qp_attr
->qp_state
= get_ibqp_state(qp_state
);
1644 qp_attr
->cur_qp_state
= qp_attr
->qp_state
;
1645 qp_attr
->sq_draining
= (qp_state
== OCRDMA_QPS_SQ_DRAINING
) ? 1 : 0;
1646 qp_attr
->max_dest_rd_atomic
=
1647 params
.max_ord_ird
>> OCRDMA_QP_PARAMS_MAX_ORD_SHIFT
;
1648 qp_attr
->max_rd_atomic
=
1649 params
.max_ord_ird
& OCRDMA_QP_PARAMS_MAX_IRD_MASK
;
1650 qp_attr
->en_sqd_async_notify
= (params
.max_sge_recv_flags
&
1651 OCRDMA_QP_PARAMS_FLAGS_SQD_ASYNC
) ? 1 : 0;
1652 /* Sync driver QP state with FW */
1653 ocrdma_qp_state_change(qp
, qp_attr
->qp_state
, NULL
);
1658 static void ocrdma_srq_toggle_bit(struct ocrdma_srq
*srq
, unsigned int idx
)
1660 unsigned int i
= idx
/ 32;
1661 u32 mask
= (1U << (idx
% 32));
1663 srq
->idx_bit_fields
[i
] ^= mask
;
1666 static int ocrdma_hwq_free_cnt(struct ocrdma_qp_hwq_info
*q
)
1668 return ((q
->max_wqe_idx
- q
->head
) + q
->tail
) % q
->max_cnt
;
1671 static int is_hw_sq_empty(struct ocrdma_qp
*qp
)
1673 return (qp
->sq
.tail
== qp
->sq
.head
);
1676 static int is_hw_rq_empty(struct ocrdma_qp
*qp
)
1678 return (qp
->rq
.tail
== qp
->rq
.head
);
1681 static void *ocrdma_hwq_head(struct ocrdma_qp_hwq_info
*q
)
1683 return q
->va
+ (q
->head
* q
->entry_size
);
1686 static void *ocrdma_hwq_head_from_idx(struct ocrdma_qp_hwq_info
*q
,
1689 return q
->va
+ (idx
* q
->entry_size
);
1692 static void ocrdma_hwq_inc_head(struct ocrdma_qp_hwq_info
*q
)
1694 q
->head
= (q
->head
+ 1) & q
->max_wqe_idx
;
1697 static void ocrdma_hwq_inc_tail(struct ocrdma_qp_hwq_info
*q
)
1699 q
->tail
= (q
->tail
+ 1) & q
->max_wqe_idx
;
1702 /* discard the cqe for a given QP */
1703 static void ocrdma_discard_cqes(struct ocrdma_qp
*qp
, struct ocrdma_cq
*cq
)
1705 unsigned long cq_flags
;
1706 unsigned long flags
;
1707 int discard_cnt
= 0;
1708 u32 cur_getp
, stop_getp
;
1709 struct ocrdma_cqe
*cqe
;
1710 u32 qpn
= 0, wqe_idx
= 0;
1712 spin_lock_irqsave(&cq
->cq_lock
, cq_flags
);
1714 /* traverse through the CQEs in the hw CQ,
1715 * find the matching CQE for a given qp,
1716 * mark the matching one discarded by clearing qpn.
1717 * ring the doorbell in the poll_cq() as
1718 * we don't complete out of order cqe.
1721 cur_getp
= cq
->getp
;
1722 /* find upto when do we reap the cq. */
1723 stop_getp
= cur_getp
;
1725 if (is_hw_sq_empty(qp
) && (!qp
->srq
&& is_hw_rq_empty(qp
)))
1728 cqe
= cq
->va
+ cur_getp
;
1729 /* if (a) done reaping whole hw cq, or
1730 * (b) qp_xq becomes empty.
1733 qpn
= cqe
->cmn
.qpn
& OCRDMA_CQE_QPN_MASK
;
1734 /* if previously discarded cqe found, skip that too. */
1735 /* check for matching qp */
1736 if (qpn
== 0 || qpn
!= qp
->id
)
1739 if (is_cqe_for_sq(cqe
)) {
1740 ocrdma_hwq_inc_tail(&qp
->sq
);
1743 wqe_idx
= (le32_to_cpu(cqe
->rq
.buftag_qpn
) >>
1744 OCRDMA_CQE_BUFTAG_SHIFT
) &
1745 qp
->srq
->rq
.max_wqe_idx
;
1748 spin_lock_irqsave(&qp
->srq
->q_lock
, flags
);
1749 ocrdma_hwq_inc_tail(&qp
->srq
->rq
);
1750 ocrdma_srq_toggle_bit(qp
->srq
, wqe_idx
- 1);
1751 spin_unlock_irqrestore(&qp
->srq
->q_lock
, flags
);
1754 ocrdma_hwq_inc_tail(&qp
->rq
);
1757 /* mark cqe discarded so that it is not picked up later
1763 cur_getp
= (cur_getp
+ 1) % cq
->max_hw_cqe
;
1764 } while (cur_getp
!= stop_getp
);
1765 spin_unlock_irqrestore(&cq
->cq_lock
, cq_flags
);
1768 void ocrdma_del_flush_qp(struct ocrdma_qp
*qp
)
1771 unsigned long flags
;
1772 struct ocrdma_dev
*dev
= get_ocrdma_dev(qp
->ibqp
.device
);
1773 /* sync with any active CQ poll */
1775 spin_lock_irqsave(&dev
->flush_q_lock
, flags
);
1776 found
= ocrdma_is_qp_in_sq_flushlist(qp
->sq_cq
, qp
);
1778 list_del(&qp
->sq_entry
);
1780 found
= ocrdma_is_qp_in_rq_flushlist(qp
->rq_cq
, qp
);
1782 list_del(&qp
->rq_entry
);
1784 spin_unlock_irqrestore(&dev
->flush_q_lock
, flags
);
1787 int ocrdma_destroy_qp(struct ib_qp
*ibqp
)
1789 struct ocrdma_pd
*pd
;
1790 struct ocrdma_qp
*qp
;
1791 struct ocrdma_dev
*dev
;
1792 struct ib_qp_attr attrs
;
1794 unsigned long flags
;
1796 qp
= get_ocrdma_qp(ibqp
);
1797 dev
= get_ocrdma_dev(ibqp
->device
);
1801 /* change the QP state to ERROR */
1802 if (qp
->state
!= OCRDMA_QPS_RST
) {
1803 attrs
.qp_state
= IB_QPS_ERR
;
1804 attr_mask
= IB_QP_STATE
;
1805 _ocrdma_modify_qp(ibqp
, &attrs
, attr_mask
);
1807 /* ensure that CQEs for newly created QP (whose id may be same with
1808 * one which just getting destroyed are same), dont get
1809 * discarded until the old CQEs are discarded.
1811 mutex_lock(&dev
->dev_lock
);
1812 (void) ocrdma_mbx_destroy_qp(dev
, qp
);
1815 * acquire CQ lock while destroy is in progress, in order to
1816 * protect against proessing in-flight CQEs for this QP.
1818 spin_lock_irqsave(&qp
->sq_cq
->cq_lock
, flags
);
1819 if (qp
->rq_cq
&& (qp
->rq_cq
!= qp
->sq_cq
))
1820 spin_lock(&qp
->rq_cq
->cq_lock
);
1822 ocrdma_del_qpn_map(dev
, qp
);
1824 if (qp
->rq_cq
&& (qp
->rq_cq
!= qp
->sq_cq
))
1825 spin_unlock(&qp
->rq_cq
->cq_lock
);
1826 spin_unlock_irqrestore(&qp
->sq_cq
->cq_lock
, flags
);
1829 ocrdma_discard_cqes(qp
, qp
->sq_cq
);
1830 ocrdma_discard_cqes(qp
, qp
->rq_cq
);
1832 mutex_unlock(&dev
->dev_lock
);
1835 ocrdma_del_mmap(pd
->uctx
, (u64
) qp
->sq
.pa
,
1836 PAGE_ALIGN(qp
->sq
.len
));
1838 ocrdma_del_mmap(pd
->uctx
, (u64
) qp
->rq
.pa
,
1839 PAGE_ALIGN(qp
->rq
.len
));
1842 ocrdma_del_flush_qp(qp
);
1844 kfree(qp
->wqe_wr_id_tbl
);
1845 kfree(qp
->rqe_wr_id_tbl
);
1850 static int ocrdma_copy_srq_uresp(struct ocrdma_dev
*dev
, struct ocrdma_srq
*srq
,
1851 struct ib_udata
*udata
)
1854 struct ocrdma_create_srq_uresp uresp
;
1856 memset(&uresp
, 0, sizeof(uresp
));
1857 uresp
.rq_dbid
= srq
->rq
.dbid
;
1858 uresp
.num_rq_pages
= 1;
1859 uresp
.rq_page_addr
[0] = virt_to_phys(srq
->rq
.va
);
1860 uresp
.rq_page_size
= srq
->rq
.len
;
1861 uresp
.db_page_addr
= dev
->nic_info
.unmapped_db
+
1862 (srq
->pd
->id
* dev
->nic_info
.db_page_size
);
1863 uresp
.db_page_size
= dev
->nic_info
.db_page_size
;
1864 uresp
.num_rqe_allocated
= srq
->rq
.max_cnt
;
1865 if (ocrdma_get_asic_type(dev
) == OCRDMA_ASIC_GEN_SKH_R
) {
1866 uresp
.db_rq_offset
= OCRDMA_DB_GEN2_RQ_OFFSET
;
1867 uresp
.db_shift
= 24;
1869 uresp
.db_rq_offset
= OCRDMA_DB_RQ_OFFSET
;
1870 uresp
.db_shift
= 16;
1873 status
= ib_copy_to_udata(udata
, &uresp
, sizeof(uresp
));
1876 status
= ocrdma_add_mmap(srq
->pd
->uctx
, uresp
.rq_page_addr
[0],
1877 uresp
.rq_page_size
);
1883 struct ib_srq
*ocrdma_create_srq(struct ib_pd
*ibpd
,
1884 struct ib_srq_init_attr
*init_attr
,
1885 struct ib_udata
*udata
)
1887 int status
= -ENOMEM
;
1888 struct ocrdma_pd
*pd
= get_ocrdma_pd(ibpd
);
1889 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibpd
->device
);
1890 struct ocrdma_srq
*srq
;
1892 if (init_attr
->attr
.max_sge
> dev
->attr
.max_recv_sge
)
1893 return ERR_PTR(-EINVAL
);
1894 if (init_attr
->attr
.max_wr
> dev
->attr
.max_rqe
)
1895 return ERR_PTR(-EINVAL
);
1897 srq
= kzalloc(sizeof(*srq
), GFP_KERNEL
);
1899 return ERR_PTR(status
);
1901 spin_lock_init(&srq
->q_lock
);
1903 srq
->db
= dev
->nic_info
.db
+ (pd
->id
* dev
->nic_info
.db_page_size
);
1904 status
= ocrdma_mbx_create_srq(dev
, srq
, init_attr
, pd
);
1908 if (udata
== NULL
) {
1909 srq
->rqe_wr_id_tbl
= kzalloc(sizeof(u64
) * srq
->rq
.max_cnt
,
1911 if (srq
->rqe_wr_id_tbl
== NULL
)
1914 srq
->bit_fields_len
= (srq
->rq
.max_cnt
/ 32) +
1915 (srq
->rq
.max_cnt
% 32 ? 1 : 0);
1916 srq
->idx_bit_fields
=
1917 kmalloc(srq
->bit_fields_len
* sizeof(u32
), GFP_KERNEL
);
1918 if (srq
->idx_bit_fields
== NULL
)
1920 memset(srq
->idx_bit_fields
, 0xff,
1921 srq
->bit_fields_len
* sizeof(u32
));
1924 if (init_attr
->attr
.srq_limit
) {
1925 status
= ocrdma_mbx_modify_srq(srq
, &init_attr
->attr
);
1931 status
= ocrdma_copy_srq_uresp(dev
, srq
, udata
);
1939 ocrdma_mbx_destroy_srq(dev
, srq
);
1941 kfree(srq
->rqe_wr_id_tbl
);
1942 kfree(srq
->idx_bit_fields
);
1944 return ERR_PTR(status
);
1947 int ocrdma_modify_srq(struct ib_srq
*ibsrq
,
1948 struct ib_srq_attr
*srq_attr
,
1949 enum ib_srq_attr_mask srq_attr_mask
,
1950 struct ib_udata
*udata
)
1953 struct ocrdma_srq
*srq
;
1955 srq
= get_ocrdma_srq(ibsrq
);
1956 if (srq_attr_mask
& IB_SRQ_MAX_WR
)
1959 status
= ocrdma_mbx_modify_srq(srq
, srq_attr
);
1963 int ocrdma_query_srq(struct ib_srq
*ibsrq
, struct ib_srq_attr
*srq_attr
)
1966 struct ocrdma_srq
*srq
;
1968 srq
= get_ocrdma_srq(ibsrq
);
1969 status
= ocrdma_mbx_query_srq(srq
, srq_attr
);
1973 int ocrdma_destroy_srq(struct ib_srq
*ibsrq
)
1976 struct ocrdma_srq
*srq
;
1977 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibsrq
->device
);
1979 srq
= get_ocrdma_srq(ibsrq
);
1981 status
= ocrdma_mbx_destroy_srq(dev
, srq
);
1984 ocrdma_del_mmap(srq
->pd
->uctx
, (u64
) srq
->rq
.pa
,
1985 PAGE_ALIGN(srq
->rq
.len
));
1987 kfree(srq
->idx_bit_fields
);
1988 kfree(srq
->rqe_wr_id_tbl
);
1993 /* unprivileged verbs and their support functions. */
1994 static void ocrdma_build_ud_hdr(struct ocrdma_qp
*qp
,
1995 struct ocrdma_hdr_wqe
*hdr
,
1996 struct ib_send_wr
*wr
)
1998 struct ocrdma_ewqe_ud_hdr
*ud_hdr
=
1999 (struct ocrdma_ewqe_ud_hdr
*)(hdr
+ 1);
2000 struct ocrdma_ah
*ah
= get_ocrdma_ah(ud_wr(wr
)->ah
);
2002 ud_hdr
->rsvd_dest_qpn
= ud_wr(wr
)->remote_qpn
;
2003 if (qp
->qp_type
== IB_QPT_GSI
)
2004 ud_hdr
->qkey
= qp
->qkey
;
2006 ud_hdr
->qkey
= ud_wr(wr
)->remote_qkey
;
2007 ud_hdr
->rsvd_ahid
= ah
->id
;
2008 if (ah
->av
->valid
& OCRDMA_AV_VLAN_VALID
)
2009 hdr
->cw
|= (OCRDMA_FLAG_AH_VLAN_PR
<< OCRDMA_WQE_FLAGS_SHIFT
);
2012 static void ocrdma_build_sges(struct ocrdma_hdr_wqe
*hdr
,
2013 struct ocrdma_sge
*sge
, int num_sge
,
2014 struct ib_sge
*sg_list
)
2018 for (i
= 0; i
< num_sge
; i
++) {
2019 sge
[i
].lrkey
= sg_list
[i
].lkey
;
2020 sge
[i
].addr_lo
= sg_list
[i
].addr
;
2021 sge
[i
].addr_hi
= upper_32_bits(sg_list
[i
].addr
);
2022 sge
[i
].len
= sg_list
[i
].length
;
2023 hdr
->total_len
+= sg_list
[i
].length
;
2026 memset(sge
, 0, sizeof(*sge
));
2029 static inline uint32_t ocrdma_sglist_len(struct ib_sge
*sg_list
, int num_sge
)
2031 uint32_t total_len
= 0, i
;
2033 for (i
= 0; i
< num_sge
; i
++)
2034 total_len
+= sg_list
[i
].length
;
2039 static int ocrdma_build_inline_sges(struct ocrdma_qp
*qp
,
2040 struct ocrdma_hdr_wqe
*hdr
,
2041 struct ocrdma_sge
*sge
,
2042 struct ib_send_wr
*wr
, u32 wqe_size
)
2047 if (wr
->send_flags
& IB_SEND_INLINE
&& qp
->qp_type
!= IB_QPT_UD
) {
2048 hdr
->total_len
= ocrdma_sglist_len(wr
->sg_list
, wr
->num_sge
);
2049 if (unlikely(hdr
->total_len
> qp
->max_inline_data
)) {
2050 pr_err("%s() supported_len=0x%x,\n"
2051 " unsupported len req=0x%x\n", __func__
,
2052 qp
->max_inline_data
, hdr
->total_len
);
2055 dpp_addr
= (char *)sge
;
2056 for (i
= 0; i
< wr
->num_sge
; i
++) {
2058 (void *)(unsigned long)wr
->sg_list
[i
].addr
,
2059 wr
->sg_list
[i
].length
);
2060 dpp_addr
+= wr
->sg_list
[i
].length
;
2063 wqe_size
+= roundup(hdr
->total_len
, OCRDMA_WQE_ALIGN_BYTES
);
2064 if (0 == hdr
->total_len
)
2065 wqe_size
+= sizeof(struct ocrdma_sge
);
2066 hdr
->cw
|= (OCRDMA_TYPE_INLINE
<< OCRDMA_WQE_TYPE_SHIFT
);
2068 ocrdma_build_sges(hdr
, sge
, wr
->num_sge
, wr
->sg_list
);
2070 wqe_size
+= (wr
->num_sge
* sizeof(struct ocrdma_sge
));
2072 wqe_size
+= sizeof(struct ocrdma_sge
);
2073 hdr
->cw
|= (OCRDMA_TYPE_LKEY
<< OCRDMA_WQE_TYPE_SHIFT
);
2075 hdr
->cw
|= ((wqe_size
/ OCRDMA_WQE_STRIDE
) << OCRDMA_WQE_SIZE_SHIFT
);
2079 static int ocrdma_build_send(struct ocrdma_qp
*qp
, struct ocrdma_hdr_wqe
*hdr
,
2080 struct ib_send_wr
*wr
)
2083 struct ocrdma_sge
*sge
;
2084 u32 wqe_size
= sizeof(*hdr
);
2086 if (qp
->qp_type
== IB_QPT_UD
|| qp
->qp_type
== IB_QPT_GSI
) {
2087 ocrdma_build_ud_hdr(qp
, hdr
, wr
);
2088 sge
= (struct ocrdma_sge
*)(hdr
+ 2);
2089 wqe_size
+= sizeof(struct ocrdma_ewqe_ud_hdr
);
2091 sge
= (struct ocrdma_sge
*)(hdr
+ 1);
2094 status
= ocrdma_build_inline_sges(qp
, hdr
, sge
, wr
, wqe_size
);
2098 static int ocrdma_build_write(struct ocrdma_qp
*qp
, struct ocrdma_hdr_wqe
*hdr
,
2099 struct ib_send_wr
*wr
)
2102 struct ocrdma_sge
*ext_rw
= (struct ocrdma_sge
*)(hdr
+ 1);
2103 struct ocrdma_sge
*sge
= ext_rw
+ 1;
2104 u32 wqe_size
= sizeof(*hdr
) + sizeof(*ext_rw
);
2106 status
= ocrdma_build_inline_sges(qp
, hdr
, sge
, wr
, wqe_size
);
2109 ext_rw
->addr_lo
= rdma_wr(wr
)->remote_addr
;
2110 ext_rw
->addr_hi
= upper_32_bits(rdma_wr(wr
)->remote_addr
);
2111 ext_rw
->lrkey
= rdma_wr(wr
)->rkey
;
2112 ext_rw
->len
= hdr
->total_len
;
2116 static void ocrdma_build_read(struct ocrdma_qp
*qp
, struct ocrdma_hdr_wqe
*hdr
,
2117 struct ib_send_wr
*wr
)
2119 struct ocrdma_sge
*ext_rw
= (struct ocrdma_sge
*)(hdr
+ 1);
2120 struct ocrdma_sge
*sge
= ext_rw
+ 1;
2121 u32 wqe_size
= ((wr
->num_sge
+ 1) * sizeof(struct ocrdma_sge
)) +
2122 sizeof(struct ocrdma_hdr_wqe
);
2124 ocrdma_build_sges(hdr
, sge
, wr
->num_sge
, wr
->sg_list
);
2125 hdr
->cw
|= ((wqe_size
/ OCRDMA_WQE_STRIDE
) << OCRDMA_WQE_SIZE_SHIFT
);
2126 hdr
->cw
|= (OCRDMA_READ
<< OCRDMA_WQE_OPCODE_SHIFT
);
2127 hdr
->cw
|= (OCRDMA_TYPE_LKEY
<< OCRDMA_WQE_TYPE_SHIFT
);
2129 ext_rw
->addr_lo
= rdma_wr(wr
)->remote_addr
;
2130 ext_rw
->addr_hi
= upper_32_bits(rdma_wr(wr
)->remote_addr
);
2131 ext_rw
->lrkey
= rdma_wr(wr
)->rkey
;
2132 ext_rw
->len
= hdr
->total_len
;
2135 static int get_encoded_page_size(int pg_sz
)
2137 /* Max size is 256M 4096 << 16 */
2140 if (pg_sz
== (4096 << i
))
2145 static int ocrdma_build_reg(struct ocrdma_qp
*qp
,
2146 struct ocrdma_hdr_wqe
*hdr
,
2147 struct ib_reg_wr
*wr
)
2150 struct ocrdma_ewqe_fr
*fast_reg
= (struct ocrdma_ewqe_fr
*)(hdr
+ 1);
2151 struct ocrdma_mr
*mr
= get_ocrdma_mr(wr
->mr
);
2152 struct ocrdma_pbl
*pbl_tbl
= mr
->hwmr
.pbl_table
;
2153 struct ocrdma_pbe
*pbe
;
2154 u32 wqe_size
= sizeof(*fast_reg
) + sizeof(*hdr
);
2155 int num_pbes
= 0, i
;
2157 wqe_size
= roundup(wqe_size
, OCRDMA_WQE_ALIGN_BYTES
);
2159 hdr
->cw
|= (OCRDMA_FR_MR
<< OCRDMA_WQE_OPCODE_SHIFT
);
2160 hdr
->cw
|= ((wqe_size
/ OCRDMA_WQE_STRIDE
) << OCRDMA_WQE_SIZE_SHIFT
);
2162 if (wr
->access
& IB_ACCESS_LOCAL_WRITE
)
2163 hdr
->rsvd_lkey_flags
|= OCRDMA_LKEY_FLAG_LOCAL_WR
;
2164 if (wr
->access
& IB_ACCESS_REMOTE_WRITE
)
2165 hdr
->rsvd_lkey_flags
|= OCRDMA_LKEY_FLAG_REMOTE_WR
;
2166 if (wr
->access
& IB_ACCESS_REMOTE_READ
)
2167 hdr
->rsvd_lkey_flags
|= OCRDMA_LKEY_FLAG_REMOTE_RD
;
2168 hdr
->lkey
= wr
->key
;
2169 hdr
->total_len
= mr
->ibmr
.length
;
2171 fbo
= mr
->ibmr
.iova
- mr
->pages
[0];
2173 fast_reg
->va_hi
= upper_32_bits(mr
->ibmr
.iova
);
2174 fast_reg
->va_lo
= (u32
) (mr
->ibmr
.iova
& 0xffffffff);
2175 fast_reg
->fbo_hi
= upper_32_bits(fbo
);
2176 fast_reg
->fbo_lo
= (u32
) fbo
& 0xffffffff;
2177 fast_reg
->num_sges
= mr
->npages
;
2178 fast_reg
->size_sge
= get_encoded_page_size(mr
->ibmr
.page_size
);
2181 for (i
= 0; i
< mr
->npages
; i
++) {
2182 u64 buf_addr
= mr
->pages
[i
];
2184 pbe
->pa_lo
= cpu_to_le32((u32
) (buf_addr
& PAGE_MASK
));
2185 pbe
->pa_hi
= cpu_to_le32((u32
) upper_32_bits(buf_addr
));
2189 /* if the pbl is full storing the pbes,
2192 if (num_pbes
== (mr
->hwmr
.pbl_size
/sizeof(u64
))) {
2194 pbe
= (struct ocrdma_pbe
*)pbl_tbl
->va
;
2201 static void ocrdma_ring_sq_db(struct ocrdma_qp
*qp
)
2203 u32 val
= qp
->sq
.dbid
| (1 << OCRDMA_DB_SQ_SHIFT
);
2205 iowrite32(val
, qp
->sq_db
);
2208 int ocrdma_post_send(struct ib_qp
*ibqp
, struct ib_send_wr
*wr
,
2209 struct ib_send_wr
**bad_wr
)
2212 struct ocrdma_qp
*qp
= get_ocrdma_qp(ibqp
);
2213 struct ocrdma_hdr_wqe
*hdr
;
2214 unsigned long flags
;
2216 spin_lock_irqsave(&qp
->q_lock
, flags
);
2217 if (qp
->state
!= OCRDMA_QPS_RTS
&& qp
->state
!= OCRDMA_QPS_SQD
) {
2218 spin_unlock_irqrestore(&qp
->q_lock
, flags
);
2224 if (qp
->qp_type
== IB_QPT_UD
&&
2225 (wr
->opcode
!= IB_WR_SEND
&&
2226 wr
->opcode
!= IB_WR_SEND_WITH_IMM
)) {
2231 if (ocrdma_hwq_free_cnt(&qp
->sq
) == 0 ||
2232 wr
->num_sge
> qp
->sq
.max_sges
) {
2237 hdr
= ocrdma_hwq_head(&qp
->sq
);
2239 if (wr
->send_flags
& IB_SEND_SIGNALED
|| qp
->signaled
)
2240 hdr
->cw
|= (OCRDMA_FLAG_SIG
<< OCRDMA_WQE_FLAGS_SHIFT
);
2241 if (wr
->send_flags
& IB_SEND_FENCE
)
2243 (OCRDMA_FLAG_FENCE_L
<< OCRDMA_WQE_FLAGS_SHIFT
);
2244 if (wr
->send_flags
& IB_SEND_SOLICITED
)
2246 (OCRDMA_FLAG_SOLICIT
<< OCRDMA_WQE_FLAGS_SHIFT
);
2248 switch (wr
->opcode
) {
2249 case IB_WR_SEND_WITH_IMM
:
2250 hdr
->cw
|= (OCRDMA_FLAG_IMM
<< OCRDMA_WQE_FLAGS_SHIFT
);
2251 hdr
->immdt
= ntohl(wr
->ex
.imm_data
);
2253 hdr
->cw
|= (OCRDMA_SEND
<< OCRDMA_WQE_OPCODE_SHIFT
);
2254 ocrdma_build_send(qp
, hdr
, wr
);
2256 case IB_WR_SEND_WITH_INV
:
2257 hdr
->cw
|= (OCRDMA_FLAG_INV
<< OCRDMA_WQE_FLAGS_SHIFT
);
2258 hdr
->cw
|= (OCRDMA_SEND
<< OCRDMA_WQE_OPCODE_SHIFT
);
2259 hdr
->lkey
= wr
->ex
.invalidate_rkey
;
2260 status
= ocrdma_build_send(qp
, hdr
, wr
);
2262 case IB_WR_RDMA_WRITE_WITH_IMM
:
2263 hdr
->cw
|= (OCRDMA_FLAG_IMM
<< OCRDMA_WQE_FLAGS_SHIFT
);
2264 hdr
->immdt
= ntohl(wr
->ex
.imm_data
);
2265 case IB_WR_RDMA_WRITE
:
2266 hdr
->cw
|= (OCRDMA_WRITE
<< OCRDMA_WQE_OPCODE_SHIFT
);
2267 status
= ocrdma_build_write(qp
, hdr
, wr
);
2269 case IB_WR_RDMA_READ
:
2270 ocrdma_build_read(qp
, hdr
, wr
);
2272 case IB_WR_LOCAL_INV
:
2274 (OCRDMA_LKEY_INV
<< OCRDMA_WQE_OPCODE_SHIFT
);
2275 hdr
->cw
|= ((sizeof(struct ocrdma_hdr_wqe
) +
2276 sizeof(struct ocrdma_sge
)) /
2277 OCRDMA_WQE_STRIDE
) << OCRDMA_WQE_SIZE_SHIFT
;
2278 hdr
->lkey
= wr
->ex
.invalidate_rkey
;
2281 status
= ocrdma_build_reg(qp
, hdr
, reg_wr(wr
));
2291 if (wr
->send_flags
& IB_SEND_SIGNALED
|| qp
->signaled
)
2292 qp
->wqe_wr_id_tbl
[qp
->sq
.head
].signaled
= 1;
2294 qp
->wqe_wr_id_tbl
[qp
->sq
.head
].signaled
= 0;
2295 qp
->wqe_wr_id_tbl
[qp
->sq
.head
].wrid
= wr
->wr_id
;
2296 ocrdma_cpu_to_le32(hdr
, ((hdr
->cw
>> OCRDMA_WQE_SIZE_SHIFT
) &
2297 OCRDMA_WQE_SIZE_MASK
) * OCRDMA_WQE_STRIDE
);
2298 /* make sure wqe is written before adapter can access it */
2300 /* inform hw to start processing it */
2301 ocrdma_ring_sq_db(qp
);
2303 /* update pointer, counter for next wr */
2304 ocrdma_hwq_inc_head(&qp
->sq
);
2307 spin_unlock_irqrestore(&qp
->q_lock
, flags
);
2311 static void ocrdma_ring_rq_db(struct ocrdma_qp
*qp
)
2313 u32 val
= qp
->rq
.dbid
| (1 << OCRDMA_DB_RQ_SHIFT
);
2315 iowrite32(val
, qp
->rq_db
);
2318 static void ocrdma_build_rqe(struct ocrdma_hdr_wqe
*rqe
, struct ib_recv_wr
*wr
,
2322 struct ocrdma_sge
*sge
;
2324 wqe_size
= (wr
->num_sge
* sizeof(*sge
)) + sizeof(*rqe
);
2326 wqe_size
= sizeof(*sge
) + sizeof(*rqe
);
2328 rqe
->cw
= ((wqe_size
/ OCRDMA_WQE_STRIDE
) <<
2329 OCRDMA_WQE_SIZE_SHIFT
);
2330 rqe
->cw
|= (OCRDMA_FLAG_SIG
<< OCRDMA_WQE_FLAGS_SHIFT
);
2331 rqe
->cw
|= (OCRDMA_TYPE_LKEY
<< OCRDMA_WQE_TYPE_SHIFT
);
2333 rqe
->rsvd_tag
= tag
;
2334 sge
= (struct ocrdma_sge
*)(rqe
+ 1);
2335 ocrdma_build_sges(rqe
, sge
, wr
->num_sge
, wr
->sg_list
);
2336 ocrdma_cpu_to_le32(rqe
, wqe_size
);
2339 int ocrdma_post_recv(struct ib_qp
*ibqp
, struct ib_recv_wr
*wr
,
2340 struct ib_recv_wr
**bad_wr
)
2343 unsigned long flags
;
2344 struct ocrdma_qp
*qp
= get_ocrdma_qp(ibqp
);
2345 struct ocrdma_hdr_wqe
*rqe
;
2347 spin_lock_irqsave(&qp
->q_lock
, flags
);
2348 if (qp
->state
== OCRDMA_QPS_RST
|| qp
->state
== OCRDMA_QPS_ERR
) {
2349 spin_unlock_irqrestore(&qp
->q_lock
, flags
);
2354 if (ocrdma_hwq_free_cnt(&qp
->rq
) == 0 ||
2355 wr
->num_sge
> qp
->rq
.max_sges
) {
2360 rqe
= ocrdma_hwq_head(&qp
->rq
);
2361 ocrdma_build_rqe(rqe
, wr
, 0);
2363 qp
->rqe_wr_id_tbl
[qp
->rq
.head
] = wr
->wr_id
;
2364 /* make sure rqe is written before adapter can access it */
2367 /* inform hw to start processing it */
2368 ocrdma_ring_rq_db(qp
);
2370 /* update pointer, counter for next wr */
2371 ocrdma_hwq_inc_head(&qp
->rq
);
2374 spin_unlock_irqrestore(&qp
->q_lock
, flags
);
2378 /* cqe for srq's rqe can potentially arrive out of order.
2379 * index gives the entry in the shadow table where to store
2380 * the wr_id. tag/index is returned in cqe to reference back
2383 static int ocrdma_srq_get_idx(struct ocrdma_srq
*srq
)
2388 for (row
= 0; row
< srq
->bit_fields_len
; row
++) {
2389 if (srq
->idx_bit_fields
[row
]) {
2390 indx
= ffs(srq
->idx_bit_fields
[row
]);
2391 indx
= (row
* 32) + (indx
- 1);
2392 if (indx
>= srq
->rq
.max_cnt
)
2394 ocrdma_srq_toggle_bit(srq
, indx
);
2399 if (row
== srq
->bit_fields_len
)
2401 return indx
+ 1; /* Use from index 1 */
2404 static void ocrdma_ring_srq_db(struct ocrdma_srq
*srq
)
2406 u32 val
= srq
->rq
.dbid
| (1 << 16);
2408 iowrite32(val
, srq
->db
+ OCRDMA_DB_GEN2_SRQ_OFFSET
);
2411 int ocrdma_post_srq_recv(struct ib_srq
*ibsrq
, struct ib_recv_wr
*wr
,
2412 struct ib_recv_wr
**bad_wr
)
2415 unsigned long flags
;
2416 struct ocrdma_srq
*srq
;
2417 struct ocrdma_hdr_wqe
*rqe
;
2420 srq
= get_ocrdma_srq(ibsrq
);
2422 spin_lock_irqsave(&srq
->q_lock
, flags
);
2424 if (ocrdma_hwq_free_cnt(&srq
->rq
) == 0 ||
2425 wr
->num_sge
> srq
->rq
.max_sges
) {
2430 tag
= ocrdma_srq_get_idx(srq
);
2431 rqe
= ocrdma_hwq_head(&srq
->rq
);
2432 ocrdma_build_rqe(rqe
, wr
, tag
);
2434 srq
->rqe_wr_id_tbl
[tag
] = wr
->wr_id
;
2435 /* make sure rqe is written before adapter can perform DMA */
2437 /* inform hw to start processing it */
2438 ocrdma_ring_srq_db(srq
);
2439 /* update pointer, counter for next wr */
2440 ocrdma_hwq_inc_head(&srq
->rq
);
2443 spin_unlock_irqrestore(&srq
->q_lock
, flags
);
2447 static enum ib_wc_status
ocrdma_to_ibwc_err(u16 status
)
2449 enum ib_wc_status ibwc_status
;
2452 case OCRDMA_CQE_GENERAL_ERR
:
2453 ibwc_status
= IB_WC_GENERAL_ERR
;
2455 case OCRDMA_CQE_LOC_LEN_ERR
:
2456 ibwc_status
= IB_WC_LOC_LEN_ERR
;
2458 case OCRDMA_CQE_LOC_QP_OP_ERR
:
2459 ibwc_status
= IB_WC_LOC_QP_OP_ERR
;
2461 case OCRDMA_CQE_LOC_EEC_OP_ERR
:
2462 ibwc_status
= IB_WC_LOC_EEC_OP_ERR
;
2464 case OCRDMA_CQE_LOC_PROT_ERR
:
2465 ibwc_status
= IB_WC_LOC_PROT_ERR
;
2467 case OCRDMA_CQE_WR_FLUSH_ERR
:
2468 ibwc_status
= IB_WC_WR_FLUSH_ERR
;
2470 case OCRDMA_CQE_MW_BIND_ERR
:
2471 ibwc_status
= IB_WC_MW_BIND_ERR
;
2473 case OCRDMA_CQE_BAD_RESP_ERR
:
2474 ibwc_status
= IB_WC_BAD_RESP_ERR
;
2476 case OCRDMA_CQE_LOC_ACCESS_ERR
:
2477 ibwc_status
= IB_WC_LOC_ACCESS_ERR
;
2479 case OCRDMA_CQE_REM_INV_REQ_ERR
:
2480 ibwc_status
= IB_WC_REM_INV_REQ_ERR
;
2482 case OCRDMA_CQE_REM_ACCESS_ERR
:
2483 ibwc_status
= IB_WC_REM_ACCESS_ERR
;
2485 case OCRDMA_CQE_REM_OP_ERR
:
2486 ibwc_status
= IB_WC_REM_OP_ERR
;
2488 case OCRDMA_CQE_RETRY_EXC_ERR
:
2489 ibwc_status
= IB_WC_RETRY_EXC_ERR
;
2491 case OCRDMA_CQE_RNR_RETRY_EXC_ERR
:
2492 ibwc_status
= IB_WC_RNR_RETRY_EXC_ERR
;
2494 case OCRDMA_CQE_LOC_RDD_VIOL_ERR
:
2495 ibwc_status
= IB_WC_LOC_RDD_VIOL_ERR
;
2497 case OCRDMA_CQE_REM_INV_RD_REQ_ERR
:
2498 ibwc_status
= IB_WC_REM_INV_RD_REQ_ERR
;
2500 case OCRDMA_CQE_REM_ABORT_ERR
:
2501 ibwc_status
= IB_WC_REM_ABORT_ERR
;
2503 case OCRDMA_CQE_INV_EECN_ERR
:
2504 ibwc_status
= IB_WC_INV_EECN_ERR
;
2506 case OCRDMA_CQE_INV_EEC_STATE_ERR
:
2507 ibwc_status
= IB_WC_INV_EEC_STATE_ERR
;
2509 case OCRDMA_CQE_FATAL_ERR
:
2510 ibwc_status
= IB_WC_FATAL_ERR
;
2512 case OCRDMA_CQE_RESP_TIMEOUT_ERR
:
2513 ibwc_status
= IB_WC_RESP_TIMEOUT_ERR
;
2516 ibwc_status
= IB_WC_GENERAL_ERR
;
2522 static void ocrdma_update_wc(struct ocrdma_qp
*qp
, struct ib_wc
*ibwc
,
2525 struct ocrdma_hdr_wqe
*hdr
;
2526 struct ocrdma_sge
*rw
;
2529 hdr
= ocrdma_hwq_head_from_idx(&qp
->sq
, wqe_idx
);
2531 ibwc
->wr_id
= qp
->wqe_wr_id_tbl
[wqe_idx
].wrid
;
2532 /* Undo the hdr->cw swap */
2533 opcode
= le32_to_cpu(hdr
->cw
) & OCRDMA_WQE_OPCODE_MASK
;
2536 ibwc
->opcode
= IB_WC_RDMA_WRITE
;
2539 rw
= (struct ocrdma_sge
*)(hdr
+ 1);
2540 ibwc
->opcode
= IB_WC_RDMA_READ
;
2541 ibwc
->byte_len
= rw
->len
;
2544 ibwc
->opcode
= IB_WC_SEND
;
2547 ibwc
->opcode
= IB_WC_REG_MR
;
2549 case OCRDMA_LKEY_INV
:
2550 ibwc
->opcode
= IB_WC_LOCAL_INV
;
2553 ibwc
->status
= IB_WC_GENERAL_ERR
;
2554 pr_err("%s() invalid opcode received = 0x%x\n",
2555 __func__
, hdr
->cw
& OCRDMA_WQE_OPCODE_MASK
);
2560 static void ocrdma_set_cqe_status_flushed(struct ocrdma_qp
*qp
,
2561 struct ocrdma_cqe
*cqe
)
2563 if (is_cqe_for_sq(cqe
)) {
2564 cqe
->flags_status_srcqpn
= cpu_to_le32(le32_to_cpu(
2565 cqe
->flags_status_srcqpn
) &
2566 ~OCRDMA_CQE_STATUS_MASK
);
2567 cqe
->flags_status_srcqpn
= cpu_to_le32(le32_to_cpu(
2568 cqe
->flags_status_srcqpn
) |
2569 (OCRDMA_CQE_WR_FLUSH_ERR
<<
2570 OCRDMA_CQE_STATUS_SHIFT
));
2572 if (qp
->qp_type
== IB_QPT_UD
|| qp
->qp_type
== IB_QPT_GSI
) {
2573 cqe
->flags_status_srcqpn
= cpu_to_le32(le32_to_cpu(
2574 cqe
->flags_status_srcqpn
) &
2575 ~OCRDMA_CQE_UD_STATUS_MASK
);
2576 cqe
->flags_status_srcqpn
= cpu_to_le32(le32_to_cpu(
2577 cqe
->flags_status_srcqpn
) |
2578 (OCRDMA_CQE_WR_FLUSH_ERR
<<
2579 OCRDMA_CQE_UD_STATUS_SHIFT
));
2581 cqe
->flags_status_srcqpn
= cpu_to_le32(le32_to_cpu(
2582 cqe
->flags_status_srcqpn
) &
2583 ~OCRDMA_CQE_STATUS_MASK
);
2584 cqe
->flags_status_srcqpn
= cpu_to_le32(le32_to_cpu(
2585 cqe
->flags_status_srcqpn
) |
2586 (OCRDMA_CQE_WR_FLUSH_ERR
<<
2587 OCRDMA_CQE_STATUS_SHIFT
));
2592 static bool ocrdma_update_err_cqe(struct ib_wc
*ibwc
, struct ocrdma_cqe
*cqe
,
2593 struct ocrdma_qp
*qp
, int status
)
2595 bool expand
= false;
2598 ibwc
->qp
= &qp
->ibqp
;
2599 ibwc
->status
= ocrdma_to_ibwc_err(status
);
2601 ocrdma_flush_qp(qp
);
2602 ocrdma_qp_state_change(qp
, IB_QPS_ERR
, NULL
);
2604 /* if wqe/rqe pending for which cqe needs to be returned,
2605 * trigger inflating it.
2607 if (!is_hw_rq_empty(qp
) || !is_hw_sq_empty(qp
)) {
2609 ocrdma_set_cqe_status_flushed(qp
, cqe
);
2614 static int ocrdma_update_err_rcqe(struct ib_wc
*ibwc
, struct ocrdma_cqe
*cqe
,
2615 struct ocrdma_qp
*qp
, int status
)
2617 ibwc
->opcode
= IB_WC_RECV
;
2618 ibwc
->wr_id
= qp
->rqe_wr_id_tbl
[qp
->rq
.tail
];
2619 ocrdma_hwq_inc_tail(&qp
->rq
);
2621 return ocrdma_update_err_cqe(ibwc
, cqe
, qp
, status
);
2624 static int ocrdma_update_err_scqe(struct ib_wc
*ibwc
, struct ocrdma_cqe
*cqe
,
2625 struct ocrdma_qp
*qp
, int status
)
2627 ocrdma_update_wc(qp
, ibwc
, qp
->sq
.tail
);
2628 ocrdma_hwq_inc_tail(&qp
->sq
);
2630 return ocrdma_update_err_cqe(ibwc
, cqe
, qp
, status
);
2634 static bool ocrdma_poll_err_scqe(struct ocrdma_qp
*qp
,
2635 struct ocrdma_cqe
*cqe
, struct ib_wc
*ibwc
,
2636 bool *polled
, bool *stop
)
2639 struct ocrdma_dev
*dev
= get_ocrdma_dev(qp
->ibqp
.device
);
2640 int status
= (le32_to_cpu(cqe
->flags_status_srcqpn
) &
2641 OCRDMA_CQE_STATUS_MASK
) >> OCRDMA_CQE_STATUS_SHIFT
;
2642 if (status
< OCRDMA_MAX_CQE_ERR
)
2643 atomic_inc(&dev
->cqe_err_stats
[status
]);
2645 /* when hw sq is empty, but rq is not empty, so we continue
2646 * to keep the cqe in order to get the cq event again.
2648 if (is_hw_sq_empty(qp
) && !is_hw_rq_empty(qp
)) {
2649 /* when cq for rq and sq is same, it is safe to return
2650 * flush cqe for RQEs.
2652 if (!qp
->srq
&& (qp
->sq_cq
== qp
->rq_cq
)) {
2654 status
= OCRDMA_CQE_WR_FLUSH_ERR
;
2655 expand
= ocrdma_update_err_rcqe(ibwc
, cqe
, qp
, status
);
2657 /* stop processing further cqe as this cqe is used for
2658 * triggering cq event on buddy cq of RQ.
2659 * When QP is destroyed, this cqe will be removed
2660 * from the cq's hardware q.
2666 } else if (is_hw_sq_empty(qp
)) {
2673 expand
= ocrdma_update_err_scqe(ibwc
, cqe
, qp
, status
);
2678 static bool ocrdma_poll_success_scqe(struct ocrdma_qp
*qp
,
2679 struct ocrdma_cqe
*cqe
,
2680 struct ib_wc
*ibwc
, bool *polled
)
2682 bool expand
= false;
2683 int tail
= qp
->sq
.tail
;
2686 if (!qp
->wqe_wr_id_tbl
[tail
].signaled
) {
2687 *polled
= false; /* WC cannot be consumed yet */
2689 ibwc
->status
= IB_WC_SUCCESS
;
2691 ibwc
->qp
= &qp
->ibqp
;
2692 ocrdma_update_wc(qp
, ibwc
, tail
);
2695 wqe_idx
= (le32_to_cpu(cqe
->wq
.wqeidx
) &
2696 OCRDMA_CQE_WQEIDX_MASK
) & qp
->sq
.max_wqe_idx
;
2697 if (tail
!= wqe_idx
)
2698 expand
= true; /* Coalesced CQE can't be consumed yet */
2700 ocrdma_hwq_inc_tail(&qp
->sq
);
2704 static bool ocrdma_poll_scqe(struct ocrdma_qp
*qp
, struct ocrdma_cqe
*cqe
,
2705 struct ib_wc
*ibwc
, bool *polled
, bool *stop
)
2710 status
= (le32_to_cpu(cqe
->flags_status_srcqpn
) &
2711 OCRDMA_CQE_STATUS_MASK
) >> OCRDMA_CQE_STATUS_SHIFT
;
2713 if (status
== OCRDMA_CQE_SUCCESS
)
2714 expand
= ocrdma_poll_success_scqe(qp
, cqe
, ibwc
, polled
);
2716 expand
= ocrdma_poll_err_scqe(qp
, cqe
, ibwc
, polled
, stop
);
2720 static int ocrdma_update_ud_rcqe(struct ib_wc
*ibwc
, struct ocrdma_cqe
*cqe
)
2724 status
= (le32_to_cpu(cqe
->flags_status_srcqpn
) &
2725 OCRDMA_CQE_UD_STATUS_MASK
) >> OCRDMA_CQE_UD_STATUS_SHIFT
;
2726 ibwc
->src_qp
= le32_to_cpu(cqe
->flags_status_srcqpn
) &
2727 OCRDMA_CQE_SRCQP_MASK
;
2728 ibwc
->pkey_index
= 0;
2729 ibwc
->wc_flags
= IB_WC_GRH
;
2730 ibwc
->byte_len
= (le32_to_cpu(cqe
->ud
.rxlen_pkey
) >>
2731 OCRDMA_CQE_UD_XFER_LEN_SHIFT
);
2735 static void ocrdma_update_free_srq_cqe(struct ib_wc
*ibwc
,
2736 struct ocrdma_cqe
*cqe
,
2737 struct ocrdma_qp
*qp
)
2739 unsigned long flags
;
2740 struct ocrdma_srq
*srq
;
2743 srq
= get_ocrdma_srq(qp
->ibqp
.srq
);
2744 wqe_idx
= (le32_to_cpu(cqe
->rq
.buftag_qpn
) >>
2745 OCRDMA_CQE_BUFTAG_SHIFT
) & srq
->rq
.max_wqe_idx
;
2749 ibwc
->wr_id
= srq
->rqe_wr_id_tbl
[wqe_idx
];
2750 spin_lock_irqsave(&srq
->q_lock
, flags
);
2751 ocrdma_srq_toggle_bit(srq
, wqe_idx
- 1);
2752 spin_unlock_irqrestore(&srq
->q_lock
, flags
);
2753 ocrdma_hwq_inc_tail(&srq
->rq
);
2756 static bool ocrdma_poll_err_rcqe(struct ocrdma_qp
*qp
, struct ocrdma_cqe
*cqe
,
2757 struct ib_wc
*ibwc
, bool *polled
, bool *stop
,
2761 struct ocrdma_dev
*dev
= get_ocrdma_dev(qp
->ibqp
.device
);
2763 if (status
< OCRDMA_MAX_CQE_ERR
)
2764 atomic_inc(&dev
->cqe_err_stats
[status
]);
2766 /* when hw_rq is empty, but wq is not empty, so continue
2767 * to keep the cqe to get the cq event again.
2769 if (is_hw_rq_empty(qp
) && !is_hw_sq_empty(qp
)) {
2770 if (!qp
->srq
&& (qp
->sq_cq
== qp
->rq_cq
)) {
2772 status
= OCRDMA_CQE_WR_FLUSH_ERR
;
2773 expand
= ocrdma_update_err_scqe(ibwc
, cqe
, qp
, status
);
2779 } else if (is_hw_rq_empty(qp
)) {
2786 expand
= ocrdma_update_err_rcqe(ibwc
, cqe
, qp
, status
);
2791 static void ocrdma_poll_success_rcqe(struct ocrdma_qp
*qp
,
2792 struct ocrdma_cqe
*cqe
, struct ib_wc
*ibwc
)
2794 ibwc
->opcode
= IB_WC_RECV
;
2795 ibwc
->qp
= &qp
->ibqp
;
2796 ibwc
->status
= IB_WC_SUCCESS
;
2798 if (qp
->qp_type
== IB_QPT_UD
|| qp
->qp_type
== IB_QPT_GSI
)
2799 ocrdma_update_ud_rcqe(ibwc
, cqe
);
2801 ibwc
->byte_len
= le32_to_cpu(cqe
->rq
.rxlen
);
2803 if (is_cqe_imm(cqe
)) {
2804 ibwc
->ex
.imm_data
= htonl(le32_to_cpu(cqe
->rq
.lkey_immdt
));
2805 ibwc
->wc_flags
|= IB_WC_WITH_IMM
;
2806 } else if (is_cqe_wr_imm(cqe
)) {
2807 ibwc
->opcode
= IB_WC_RECV_RDMA_WITH_IMM
;
2808 ibwc
->ex
.imm_data
= htonl(le32_to_cpu(cqe
->rq
.lkey_immdt
));
2809 ibwc
->wc_flags
|= IB_WC_WITH_IMM
;
2810 } else if (is_cqe_invalidated(cqe
)) {
2811 ibwc
->ex
.invalidate_rkey
= le32_to_cpu(cqe
->rq
.lkey_immdt
);
2812 ibwc
->wc_flags
|= IB_WC_WITH_INVALIDATE
;
2815 ocrdma_update_free_srq_cqe(ibwc
, cqe
, qp
);
2817 ibwc
->wr_id
= qp
->rqe_wr_id_tbl
[qp
->rq
.tail
];
2818 ocrdma_hwq_inc_tail(&qp
->rq
);
2822 static bool ocrdma_poll_rcqe(struct ocrdma_qp
*qp
, struct ocrdma_cqe
*cqe
,
2823 struct ib_wc
*ibwc
, bool *polled
, bool *stop
)
2826 bool expand
= false;
2829 if (qp
->qp_type
== IB_QPT_UD
|| qp
->qp_type
== IB_QPT_GSI
) {
2830 status
= (le32_to_cpu(cqe
->flags_status_srcqpn
) &
2831 OCRDMA_CQE_UD_STATUS_MASK
) >>
2832 OCRDMA_CQE_UD_STATUS_SHIFT
;
2834 status
= (le32_to_cpu(cqe
->flags_status_srcqpn
) &
2835 OCRDMA_CQE_STATUS_MASK
) >> OCRDMA_CQE_STATUS_SHIFT
;
2838 if (status
== OCRDMA_CQE_SUCCESS
) {
2840 ocrdma_poll_success_rcqe(qp
, cqe
, ibwc
);
2842 expand
= ocrdma_poll_err_rcqe(qp
, cqe
, ibwc
, polled
, stop
,
2848 static void ocrdma_change_cq_phase(struct ocrdma_cq
*cq
, struct ocrdma_cqe
*cqe
,
2851 if (cq
->phase_change
) {
2853 cq
->phase
= (~cq
->phase
& OCRDMA_CQE_VALID
);
2855 /* clear valid bit */
2856 cqe
->flags_status_srcqpn
= 0;
2860 static int ocrdma_poll_hwcq(struct ocrdma_cq
*cq
, int num_entries
,
2865 bool expand
= false;
2866 int polled_hw_cqes
= 0;
2867 struct ocrdma_qp
*qp
= NULL
;
2868 struct ocrdma_dev
*dev
= get_ocrdma_dev(cq
->ibcq
.device
);
2869 struct ocrdma_cqe
*cqe
;
2870 u16 cur_getp
; bool polled
= false; bool stop
= false;
2872 cur_getp
= cq
->getp
;
2873 while (num_entries
) {
2874 cqe
= cq
->va
+ cur_getp
;
2875 /* check whether valid cqe or not */
2876 if (!is_cqe_valid(cq
, cqe
))
2878 qpn
= (le32_to_cpu(cqe
->cmn
.qpn
) & OCRDMA_CQE_QPN_MASK
);
2879 /* ignore discarded cqe */
2882 qp
= dev
->qp_tbl
[qpn
];
2885 if (is_cqe_for_sq(cqe
)) {
2886 expand
= ocrdma_poll_scqe(qp
, cqe
, ibwc
, &polled
,
2889 expand
= ocrdma_poll_rcqe(qp
, cqe
, ibwc
, &polled
,
2896 /* clear qpn to avoid duplicate processing by discard_cqe() */
2899 polled_hw_cqes
+= 1;
2900 cur_getp
= (cur_getp
+ 1) % cq
->max_hw_cqe
;
2901 ocrdma_change_cq_phase(cq
, cqe
, cur_getp
);
2911 cq
->getp
= cur_getp
;
2914 ocrdma_ring_cq_db(dev
, cq
->id
, false, false, polled_hw_cqes
);
2919 /* insert error cqe if the QP's SQ or RQ's CQ matches the CQ under poll. */
2920 static int ocrdma_add_err_cqe(struct ocrdma_cq
*cq
, int num_entries
,
2921 struct ocrdma_qp
*qp
, struct ib_wc
*ibwc
)
2925 while (num_entries
) {
2926 if (is_hw_sq_empty(qp
) && is_hw_rq_empty(qp
))
2928 if (!is_hw_sq_empty(qp
) && qp
->sq_cq
== cq
) {
2929 ocrdma_update_wc(qp
, ibwc
, qp
->sq
.tail
);
2930 ocrdma_hwq_inc_tail(&qp
->sq
);
2931 } else if (!is_hw_rq_empty(qp
) && qp
->rq_cq
== cq
) {
2932 ibwc
->wr_id
= qp
->rqe_wr_id_tbl
[qp
->rq
.tail
];
2933 ocrdma_hwq_inc_tail(&qp
->rq
);
2938 ibwc
->status
= IB_WC_WR_FLUSH_ERR
;
2946 int ocrdma_poll_cq(struct ib_cq
*ibcq
, int num_entries
, struct ib_wc
*wc
)
2948 int cqes_to_poll
= num_entries
;
2949 struct ocrdma_cq
*cq
= get_ocrdma_cq(ibcq
);
2950 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibcq
->device
);
2951 int num_os_cqe
= 0, err_cqes
= 0;
2952 struct ocrdma_qp
*qp
;
2953 unsigned long flags
;
2955 /* poll cqes from adapter CQ */
2956 spin_lock_irqsave(&cq
->cq_lock
, flags
);
2957 num_os_cqe
= ocrdma_poll_hwcq(cq
, cqes_to_poll
, wc
);
2958 spin_unlock_irqrestore(&cq
->cq_lock
, flags
);
2959 cqes_to_poll
-= num_os_cqe
;
2962 wc
= wc
+ num_os_cqe
;
2963 /* adapter returns single error cqe when qp moves to
2964 * error state. So insert error cqes with wc_status as
2965 * FLUSHED for pending WQEs and RQEs of QP's SQ and RQ
2966 * respectively which uses this CQ.
2968 spin_lock_irqsave(&dev
->flush_q_lock
, flags
);
2969 list_for_each_entry(qp
, &cq
->sq_head
, sq_entry
) {
2970 if (cqes_to_poll
== 0)
2972 err_cqes
= ocrdma_add_err_cqe(cq
, cqes_to_poll
, qp
, wc
);
2973 cqes_to_poll
-= err_cqes
;
2974 num_os_cqe
+= err_cqes
;
2977 spin_unlock_irqrestore(&dev
->flush_q_lock
, flags
);
2982 int ocrdma_arm_cq(struct ib_cq
*ibcq
, enum ib_cq_notify_flags cq_flags
)
2984 struct ocrdma_cq
*cq
= get_ocrdma_cq(ibcq
);
2985 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibcq
->device
);
2987 unsigned long flags
;
2988 bool arm_needed
= false, sol_needed
= false;
2992 spin_lock_irqsave(&cq
->cq_lock
, flags
);
2993 if (cq_flags
& IB_CQ_NEXT_COMP
|| cq_flags
& IB_CQ_SOLICITED
)
2995 if (cq_flags
& IB_CQ_SOLICITED
)
2998 ocrdma_ring_cq_db(dev
, cq_id
, arm_needed
, sol_needed
, 0);
2999 spin_unlock_irqrestore(&cq
->cq_lock
, flags
);
3004 struct ib_mr
*ocrdma_alloc_mr(struct ib_pd
*ibpd
,
3005 enum ib_mr_type mr_type
,
3009 struct ocrdma_mr
*mr
;
3010 struct ocrdma_pd
*pd
= get_ocrdma_pd(ibpd
);
3011 struct ocrdma_dev
*dev
= get_ocrdma_dev(ibpd
->device
);
3013 if (mr_type
!= IB_MR_TYPE_MEM_REG
)
3014 return ERR_PTR(-EINVAL
);
3016 if (max_num_sg
> dev
->attr
.max_pages_per_frmr
)
3017 return ERR_PTR(-EINVAL
);
3019 mr
= kzalloc(sizeof(*mr
), GFP_KERNEL
);
3021 return ERR_PTR(-ENOMEM
);
3023 mr
->pages
= kcalloc(max_num_sg
, sizeof(u64
), GFP_KERNEL
);
3029 status
= ocrdma_get_pbl_info(dev
, mr
, max_num_sg
);
3033 mr
->hwmr
.remote_rd
= 0;
3034 mr
->hwmr
.remote_wr
= 0;
3035 mr
->hwmr
.local_rd
= 0;
3036 mr
->hwmr
.local_wr
= 0;
3037 mr
->hwmr
.mw_bind
= 0;
3038 status
= ocrdma_build_pbl_tbl(dev
, &mr
->hwmr
);
3041 status
= ocrdma_reg_mr(dev
, &mr
->hwmr
, pd
->id
, 0);
3044 mr
->ibmr
.rkey
= mr
->hwmr
.lkey
;
3045 mr
->ibmr
.lkey
= mr
->hwmr
.lkey
;
3046 dev
->stag_arr
[(mr
->hwmr
.lkey
>> 8) & (OCRDMA_MAX_STAG
- 1)] =
3050 ocrdma_free_mr_pbl_tbl(dev
, &mr
->hwmr
);
3055 return ERR_PTR(-ENOMEM
);
3058 static int ocrdma_set_page(struct ib_mr
*ibmr
, u64 addr
)
3060 struct ocrdma_mr
*mr
= get_ocrdma_mr(ibmr
);
3062 if (unlikely(mr
->npages
== mr
->hwmr
.num_pbes
))
3065 mr
->pages
[mr
->npages
++] = addr
;
3070 int ocrdma_map_mr_sg(struct ib_mr
*ibmr
,
3071 struct scatterlist
*sg
,
3074 struct ocrdma_mr
*mr
= get_ocrdma_mr(ibmr
);
3078 return ib_sg_to_pages(ibmr
, sg
, sg_nents
, ocrdma_set_page
);