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-rw-r--r--net/sunrpc/xprtrdma/verbs.c365
1 files changed, 207 insertions, 158 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 8ea283ecc522..d04208a02f67 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -863,6 +863,7 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep,
863 char *p; 863 char *p;
864 size_t len; 864 size_t len;
865 int i, rc; 865 int i, rc;
866 struct rpcrdma_mw *r;
866 867
867 buf->rb_max_requests = cdata->max_requests; 868 buf->rb_max_requests = cdata->max_requests;
868 spin_lock_init(&buf->rb_lock); 869 spin_lock_init(&buf->rb_lock);
@@ -873,7 +874,7 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep,
873 * 2. arrays of struct rpcrdma_req to fill in pointers 874 * 2. arrays of struct rpcrdma_req to fill in pointers
874 * 3. array of struct rpcrdma_rep for replies 875 * 3. array of struct rpcrdma_rep for replies
875 * 4. padding, if any 876 * 4. padding, if any
876 * 5. mw's, if any 877 * 5. mw's or fmr's, if any
877 * Send/recv buffers in req/rep need to be registered 878 * Send/recv buffers in req/rep need to be registered
878 */ 879 */
879 880
@@ -927,15 +928,13 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep,
927 * and also reduce unbind-to-bind collision. 928 * and also reduce unbind-to-bind collision.
928 */ 929 */
929 INIT_LIST_HEAD(&buf->rb_mws); 930 INIT_LIST_HEAD(&buf->rb_mws);
931 r = (struct rpcrdma_mw *)p;
930 switch (ia->ri_memreg_strategy) { 932 switch (ia->ri_memreg_strategy) {
931 case RPCRDMA_MTHCAFMR: 933 case RPCRDMA_MTHCAFMR:
932 {
933 struct rpcrdma_mw *r = (struct rpcrdma_mw *)p;
934 struct ib_fmr_attr fa = {
935 RPCRDMA_MAX_DATA_SEGS, 1, PAGE_SHIFT
936 };
937 /* TBD we are perhaps overallocating here */ 934 /* TBD we are perhaps overallocating here */
938 for (i = (buf->rb_max_requests+1) * RPCRDMA_MAX_SEGS; i; i--) { 935 for (i = (buf->rb_max_requests+1) * RPCRDMA_MAX_SEGS; i; i--) {
936 static struct ib_fmr_attr fa =
937 { RPCRDMA_MAX_DATA_SEGS, 1, PAGE_SHIFT };
939 r->r.fmr = ib_alloc_fmr(ia->ri_pd, 938 r->r.fmr = ib_alloc_fmr(ia->ri_pd,
940 IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_READ, 939 IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_READ,
941 &fa); 940 &fa);
@@ -948,12 +947,9 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep,
948 list_add(&r->mw_list, &buf->rb_mws); 947 list_add(&r->mw_list, &buf->rb_mws);
949 ++r; 948 ++r;
950 } 949 }
951 }
952 break; 950 break;
953 case RPCRDMA_MEMWINDOWS_ASYNC: 951 case RPCRDMA_MEMWINDOWS_ASYNC:
954 case RPCRDMA_MEMWINDOWS: 952 case RPCRDMA_MEMWINDOWS:
955 {
956 struct rpcrdma_mw *r = (struct rpcrdma_mw *)p;
957 /* Allocate one extra request's worth, for full cycling */ 953 /* Allocate one extra request's worth, for full cycling */
958 for (i = (buf->rb_max_requests+1) * RPCRDMA_MAX_SEGS; i; i--) { 954 for (i = (buf->rb_max_requests+1) * RPCRDMA_MAX_SEGS; i; i--) {
959 r->r.mw = ib_alloc_mw(ia->ri_pd); 955 r->r.mw = ib_alloc_mw(ia->ri_pd);
@@ -966,7 +962,6 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep,
966 list_add(&r->mw_list, &buf->rb_mws); 962 list_add(&r->mw_list, &buf->rb_mws);
967 ++r; 963 ++r;
968 } 964 }
969 }
970 break; 965 break;
971 default: 966 default:
972 break; 967 break;
@@ -1046,6 +1041,7 @@ rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf)
1046{ 1041{
1047 int rc, i; 1042 int rc, i;
1048 struct rpcrdma_ia *ia = rdmab_to_ia(buf); 1043 struct rpcrdma_ia *ia = rdmab_to_ia(buf);
1044 struct rpcrdma_mw *r;
1049 1045
1050 /* clean up in reverse order from create 1046 /* clean up in reverse order from create
1051 * 1. recv mr memory (mr free, then kfree) 1047 * 1. recv mr memory (mr free, then kfree)
@@ -1065,7 +1061,6 @@ rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf)
1065 } 1061 }
1066 if (buf->rb_send_bufs && buf->rb_send_bufs[i]) { 1062 if (buf->rb_send_bufs && buf->rb_send_bufs[i]) {
1067 while (!list_empty(&buf->rb_mws)) { 1063 while (!list_empty(&buf->rb_mws)) {
1068 struct rpcrdma_mw *r;
1069 r = list_entry(buf->rb_mws.next, 1064 r = list_entry(buf->rb_mws.next,
1070 struct rpcrdma_mw, mw_list); 1065 struct rpcrdma_mw, mw_list);
1071 list_del(&r->mw_list); 1066 list_del(&r->mw_list);
@@ -1115,6 +1110,8 @@ rpcrdma_buffer_get(struct rpcrdma_buffer *buffers)
1115{ 1110{
1116 struct rpcrdma_req *req; 1111 struct rpcrdma_req *req;
1117 unsigned long flags; 1112 unsigned long flags;
1113 int i;
1114 struct rpcrdma_mw *r;
1118 1115
1119 spin_lock_irqsave(&buffers->rb_lock, flags); 1116 spin_lock_irqsave(&buffers->rb_lock, flags);
1120 if (buffers->rb_send_index == buffers->rb_max_requests) { 1117 if (buffers->rb_send_index == buffers->rb_max_requests) {
@@ -1135,9 +1132,8 @@ rpcrdma_buffer_get(struct rpcrdma_buffer *buffers)
1135 } 1132 }
1136 buffers->rb_send_bufs[buffers->rb_send_index++] = NULL; 1133 buffers->rb_send_bufs[buffers->rb_send_index++] = NULL;
1137 if (!list_empty(&buffers->rb_mws)) { 1134 if (!list_empty(&buffers->rb_mws)) {
1138 int i = RPCRDMA_MAX_SEGS - 1; 1135 i = RPCRDMA_MAX_SEGS - 1;
1139 do { 1136 do {
1140 struct rpcrdma_mw *r;
1141 r = list_entry(buffers->rb_mws.next, 1137 r = list_entry(buffers->rb_mws.next,
1142 struct rpcrdma_mw, mw_list); 1138 struct rpcrdma_mw, mw_list);
1143 list_del(&r->mw_list); 1139 list_del(&r->mw_list);
@@ -1329,15 +1325,202 @@ rpcrdma_unmap_one(struct rpcrdma_ia *ia, struct rpcrdma_mr_seg *seg)
1329 seg->mr_dma, seg->mr_dmalen, seg->mr_dir); 1325 seg->mr_dma, seg->mr_dmalen, seg->mr_dir);
1330} 1326}
1331 1327
1328static int
1329rpcrdma_register_fmr_external(struct rpcrdma_mr_seg *seg,
1330 int *nsegs, int writing, struct rpcrdma_ia *ia)
1331{
1332 struct rpcrdma_mr_seg *seg1 = seg;
1333 u64 physaddrs[RPCRDMA_MAX_DATA_SEGS];
1334 int len, pageoff, i, rc;
1335
1336 pageoff = offset_in_page(seg1->mr_offset);
1337 seg1->mr_offset -= pageoff; /* start of page */
1338 seg1->mr_len += pageoff;
1339 len = -pageoff;
1340 if (*nsegs > RPCRDMA_MAX_DATA_SEGS)
1341 *nsegs = RPCRDMA_MAX_DATA_SEGS;
1342 for (i = 0; i < *nsegs;) {
1343 rpcrdma_map_one(ia, seg, writing);
1344 physaddrs[i] = seg->mr_dma;
1345 len += seg->mr_len;
1346 ++seg;
1347 ++i;
1348 /* Check for holes */
1349 if ((i < *nsegs && offset_in_page(seg->mr_offset)) ||
1350 offset_in_page((seg-1)->mr_offset + (seg-1)->mr_len))
1351 break;
1352 }
1353 rc = ib_map_phys_fmr(seg1->mr_chunk.rl_mw->r.fmr,
1354 physaddrs, i, seg1->mr_dma);
1355 if (rc) {
1356 dprintk("RPC: %s: failed ib_map_phys_fmr "
1357 "%u@0x%llx+%i (%d)... status %i\n", __func__,
1358 len, (unsigned long long)seg1->mr_dma,
1359 pageoff, i, rc);
1360 while (i--)
1361 rpcrdma_unmap_one(ia, --seg);
1362 } else {
1363 seg1->mr_rkey = seg1->mr_chunk.rl_mw->r.fmr->rkey;
1364 seg1->mr_base = seg1->mr_dma + pageoff;
1365 seg1->mr_nsegs = i;
1366 seg1->mr_len = len;
1367 }
1368 *nsegs = i;
1369 return rc;
1370}
1371
1372static int
1373rpcrdma_deregister_fmr_external(struct rpcrdma_mr_seg *seg,
1374 struct rpcrdma_ia *ia)
1375{
1376 struct rpcrdma_mr_seg *seg1 = seg;
1377 LIST_HEAD(l);
1378 int rc;
1379
1380 list_add(&seg1->mr_chunk.rl_mw->r.fmr->list, &l);
1381 rc = ib_unmap_fmr(&l);
1382 while (seg1->mr_nsegs--)
1383 rpcrdma_unmap_one(ia, seg++);
1384 if (rc)
1385 dprintk("RPC: %s: failed ib_unmap_fmr,"
1386 " status %i\n", __func__, rc);
1387 return rc;
1388}
1389
1390static int
1391rpcrdma_register_memwin_external(struct rpcrdma_mr_seg *seg,
1392 int *nsegs, int writing, struct rpcrdma_ia *ia,
1393 struct rpcrdma_xprt *r_xprt)
1394{
1395 int mem_priv = (writing ? IB_ACCESS_REMOTE_WRITE :
1396 IB_ACCESS_REMOTE_READ);
1397 struct ib_mw_bind param;
1398 int rc;
1399
1400 *nsegs = 1;
1401 rpcrdma_map_one(ia, seg, writing);
1402 param.mr = ia->ri_bind_mem;
1403 param.wr_id = 0ULL; /* no send cookie */
1404 param.addr = seg->mr_dma;
1405 param.length = seg->mr_len;
1406 param.send_flags = 0;
1407 param.mw_access_flags = mem_priv;
1408
1409 DECR_CQCOUNT(&r_xprt->rx_ep);
1410 rc = ib_bind_mw(ia->ri_id->qp, seg->mr_chunk.rl_mw->r.mw, &param);
1411 if (rc) {
1412 dprintk("RPC: %s: failed ib_bind_mw "
1413 "%u@0x%llx status %i\n",
1414 __func__, seg->mr_len,
1415 (unsigned long long)seg->mr_dma, rc);
1416 rpcrdma_unmap_one(ia, seg);
1417 } else {
1418 seg->mr_rkey = seg->mr_chunk.rl_mw->r.mw->rkey;
1419 seg->mr_base = param.addr;
1420 seg->mr_nsegs = 1;
1421 }
1422 return rc;
1423}
1424
1425static int
1426rpcrdma_deregister_memwin_external(struct rpcrdma_mr_seg *seg,
1427 struct rpcrdma_ia *ia,
1428 struct rpcrdma_xprt *r_xprt, void **r)
1429{
1430 struct ib_mw_bind param;
1431 LIST_HEAD(l);
1432 int rc;
1433
1434 BUG_ON(seg->mr_nsegs != 1);
1435 param.mr = ia->ri_bind_mem;
1436 param.addr = 0ULL; /* unbind */
1437 param.length = 0;
1438 param.mw_access_flags = 0;
1439 if (*r) {
1440 param.wr_id = (u64) (unsigned long) *r;
1441 param.send_flags = IB_SEND_SIGNALED;
1442 INIT_CQCOUNT(&r_xprt->rx_ep);
1443 } else {
1444 param.wr_id = 0ULL;
1445 param.send_flags = 0;
1446 DECR_CQCOUNT(&r_xprt->rx_ep);
1447 }
1448 rc = ib_bind_mw(ia->ri_id->qp, seg->mr_chunk.rl_mw->r.mw, &param);
1449 rpcrdma_unmap_one(ia, seg);
1450 if (rc)
1451 dprintk("RPC: %s: failed ib_(un)bind_mw,"
1452 " status %i\n", __func__, rc);
1453 else
1454 *r = NULL; /* will upcall on completion */
1455 return rc;
1456}
1457
1458static int
1459rpcrdma_register_default_external(struct rpcrdma_mr_seg *seg,
1460 int *nsegs, int writing, struct rpcrdma_ia *ia)
1461{
1462 int mem_priv = (writing ? IB_ACCESS_REMOTE_WRITE :
1463 IB_ACCESS_REMOTE_READ);
1464 struct rpcrdma_mr_seg *seg1 = seg;
1465 struct ib_phys_buf ipb[RPCRDMA_MAX_DATA_SEGS];
1466 int len, i, rc = 0;
1467
1468 if (*nsegs > RPCRDMA_MAX_DATA_SEGS)
1469 *nsegs = RPCRDMA_MAX_DATA_SEGS;
1470 for (len = 0, i = 0; i < *nsegs;) {
1471 rpcrdma_map_one(ia, seg, writing);
1472 ipb[i].addr = seg->mr_dma;
1473 ipb[i].size = seg->mr_len;
1474 len += seg->mr_len;
1475 ++seg;
1476 ++i;
1477 /* Check for holes */
1478 if ((i < *nsegs && offset_in_page(seg->mr_offset)) ||
1479 offset_in_page((seg-1)->mr_offset+(seg-1)->mr_len))
1480 break;
1481 }
1482 seg1->mr_base = seg1->mr_dma;
1483 seg1->mr_chunk.rl_mr = ib_reg_phys_mr(ia->ri_pd,
1484 ipb, i, mem_priv, &seg1->mr_base);
1485 if (IS_ERR(seg1->mr_chunk.rl_mr)) {
1486 rc = PTR_ERR(seg1->mr_chunk.rl_mr);
1487 dprintk("RPC: %s: failed ib_reg_phys_mr "
1488 "%u@0x%llx (%d)... status %i\n",
1489 __func__, len,
1490 (unsigned long long)seg1->mr_dma, i, rc);
1491 while (i--)
1492 rpcrdma_unmap_one(ia, --seg);
1493 } else {
1494 seg1->mr_rkey = seg1->mr_chunk.rl_mr->rkey;
1495 seg1->mr_nsegs = i;
1496 seg1->mr_len = len;
1497 }
1498 *nsegs = i;
1499 return rc;
1500}
1501
1502static int
1503rpcrdma_deregister_default_external(struct rpcrdma_mr_seg *seg,
1504 struct rpcrdma_ia *ia)
1505{
1506 struct rpcrdma_mr_seg *seg1 = seg;
1507 int rc;
1508
1509 rc = ib_dereg_mr(seg1->mr_chunk.rl_mr);
1510 seg1->mr_chunk.rl_mr = NULL;
1511 while (seg1->mr_nsegs--)
1512 rpcrdma_unmap_one(ia, seg++);
1513 if (rc)
1514 dprintk("RPC: %s: failed ib_dereg_mr,"
1515 " status %i\n", __func__, rc);
1516 return rc;
1517}
1518
1332int 1519int
1333rpcrdma_register_external(struct rpcrdma_mr_seg *seg, 1520rpcrdma_register_external(struct rpcrdma_mr_seg *seg,
1334 int nsegs, int writing, struct rpcrdma_xprt *r_xprt) 1521 int nsegs, int writing, struct rpcrdma_xprt *r_xprt)
1335{ 1522{
1336 struct rpcrdma_ia *ia = &r_xprt->rx_ia; 1523 struct rpcrdma_ia *ia = &r_xprt->rx_ia;
1337 int mem_priv = (writing ? IB_ACCESS_REMOTE_WRITE :
1338 IB_ACCESS_REMOTE_READ);
1339 struct rpcrdma_mr_seg *seg1 = seg;
1340 int i;
1341 int rc = 0; 1524 int rc = 0;
1342 1525
1343 switch (ia->ri_memreg_strategy) { 1526 switch (ia->ri_memreg_strategy) {
@@ -1352,114 +1535,20 @@ rpcrdma_register_external(struct rpcrdma_mr_seg *seg,
1352 break; 1535 break;
1353#endif 1536#endif
1354 1537
1355 /* Registration using fast memory registration */ 1538 /* Registration using fmr memory registration */
1356 case RPCRDMA_MTHCAFMR: 1539 case RPCRDMA_MTHCAFMR:
1357 { 1540 rc = rpcrdma_register_fmr_external(seg, &nsegs, writing, ia);
1358 u64 physaddrs[RPCRDMA_MAX_DATA_SEGS];
1359 int len, pageoff = offset_in_page(seg->mr_offset);
1360 seg1->mr_offset -= pageoff; /* start of page */
1361 seg1->mr_len += pageoff;
1362 len = -pageoff;
1363 if (nsegs > RPCRDMA_MAX_DATA_SEGS)
1364 nsegs = RPCRDMA_MAX_DATA_SEGS;
1365 for (i = 0; i < nsegs;) {
1366 rpcrdma_map_one(ia, seg, writing);
1367 physaddrs[i] = seg->mr_dma;
1368 len += seg->mr_len;
1369 ++seg;
1370 ++i;
1371 /* Check for holes */
1372 if ((i < nsegs && offset_in_page(seg->mr_offset)) ||
1373 offset_in_page((seg-1)->mr_offset+(seg-1)->mr_len))
1374 break;
1375 }
1376 nsegs = i;
1377 rc = ib_map_phys_fmr(seg1->mr_chunk.rl_mw->r.fmr,
1378 physaddrs, nsegs, seg1->mr_dma);
1379 if (rc) {
1380 dprintk("RPC: %s: failed ib_map_phys_fmr "
1381 "%u@0x%llx+%i (%d)... status %i\n", __func__,
1382 len, (unsigned long long)seg1->mr_dma,
1383 pageoff, nsegs, rc);
1384 while (nsegs--)
1385 rpcrdma_unmap_one(ia, --seg);
1386 } else {
1387 seg1->mr_rkey = seg1->mr_chunk.rl_mw->r.fmr->rkey;
1388 seg1->mr_base = seg1->mr_dma + pageoff;
1389 seg1->mr_nsegs = nsegs;
1390 seg1->mr_len = len;
1391 }
1392 }
1393 break; 1541 break;
1394 1542
1395 /* Registration using memory windows */ 1543 /* Registration using memory windows */
1396 case RPCRDMA_MEMWINDOWS_ASYNC: 1544 case RPCRDMA_MEMWINDOWS_ASYNC:
1397 case RPCRDMA_MEMWINDOWS: 1545 case RPCRDMA_MEMWINDOWS:
1398 { 1546 rc = rpcrdma_register_memwin_external(seg, &nsegs, writing, ia, r_xprt);
1399 struct ib_mw_bind param;
1400 rpcrdma_map_one(ia, seg, writing);
1401 param.mr = ia->ri_bind_mem;
1402 param.wr_id = 0ULL; /* no send cookie */
1403 param.addr = seg->mr_dma;
1404 param.length = seg->mr_len;
1405 param.send_flags = 0;
1406 param.mw_access_flags = mem_priv;
1407
1408 DECR_CQCOUNT(&r_xprt->rx_ep);
1409 rc = ib_bind_mw(ia->ri_id->qp,
1410 seg->mr_chunk.rl_mw->r.mw, &param);
1411 if (rc) {
1412 dprintk("RPC: %s: failed ib_bind_mw "
1413 "%u@0x%llx status %i\n",
1414 __func__, seg->mr_len,
1415 (unsigned long long)seg->mr_dma, rc);
1416 rpcrdma_unmap_one(ia, seg);
1417 } else {
1418 seg->mr_rkey = seg->mr_chunk.rl_mw->r.mw->rkey;
1419 seg->mr_base = param.addr;
1420 seg->mr_nsegs = 1;
1421 nsegs = 1;
1422 }
1423 }
1424 break; 1547 break;
1425 1548
1426 /* Default registration each time */ 1549 /* Default registration each time */
1427 default: 1550 default:
1428 { 1551 rc = rpcrdma_register_default_external(seg, &nsegs, writing, ia);
1429 struct ib_phys_buf ipb[RPCRDMA_MAX_DATA_SEGS];
1430 int len = 0;
1431 if (nsegs > RPCRDMA_MAX_DATA_SEGS)
1432 nsegs = RPCRDMA_MAX_DATA_SEGS;
1433 for (i = 0; i < nsegs;) {
1434 rpcrdma_map_one(ia, seg, writing);
1435 ipb[i].addr = seg->mr_dma;
1436 ipb[i].size = seg->mr_len;
1437 len += seg->mr_len;
1438 ++seg;
1439 ++i;
1440 /* Check for holes */
1441 if ((i < nsegs && offset_in_page(seg->mr_offset)) ||
1442 offset_in_page((seg-1)->mr_offset+(seg-1)->mr_len))
1443 break;
1444 }
1445 nsegs = i;
1446 seg1->mr_base = seg1->mr_dma;
1447 seg1->mr_chunk.rl_mr = ib_reg_phys_mr(ia->ri_pd,
1448 ipb, nsegs, mem_priv, &seg1->mr_base);
1449 if (IS_ERR(seg1->mr_chunk.rl_mr)) {
1450 rc = PTR_ERR(seg1->mr_chunk.rl_mr);
1451 dprintk("RPC: %s: failed ib_reg_phys_mr "
1452 "%u@0x%llx (%d)... status %i\n",
1453 __func__, len,
1454 (unsigned long long)seg1->mr_dma, nsegs, rc);
1455 while (nsegs--)
1456 rpcrdma_unmap_one(ia, --seg);
1457 } else {
1458 seg1->mr_rkey = seg1->mr_chunk.rl_mr->rkey;
1459 seg1->mr_nsegs = nsegs;
1460 seg1->mr_len = len;
1461 }
1462 }
1463 break; 1552 break;
1464 } 1553 }
1465 if (rc) 1554 if (rc)
@@ -1473,7 +1562,6 @@ rpcrdma_deregister_external(struct rpcrdma_mr_seg *seg,
1473 struct rpcrdma_xprt *r_xprt, void *r) 1562 struct rpcrdma_xprt *r_xprt, void *r)
1474{ 1563{
1475 struct rpcrdma_ia *ia = &r_xprt->rx_ia; 1564 struct rpcrdma_ia *ia = &r_xprt->rx_ia;
1476 struct rpcrdma_mr_seg *seg1 = seg;
1477 int nsegs = seg->mr_nsegs, rc; 1565 int nsegs = seg->mr_nsegs, rc;
1478 1566
1479 switch (ia->ri_memreg_strategy) { 1567 switch (ia->ri_memreg_strategy) {
@@ -1487,55 +1575,16 @@ rpcrdma_deregister_external(struct rpcrdma_mr_seg *seg,
1487#endif 1575#endif
1488 1576
1489 case RPCRDMA_MTHCAFMR: 1577 case RPCRDMA_MTHCAFMR:
1490 { 1578 rc = rpcrdma_deregister_fmr_external(seg, ia);
1491 LIST_HEAD(l);
1492 list_add(&seg->mr_chunk.rl_mw->r.fmr->list, &l);
1493 rc = ib_unmap_fmr(&l);
1494 while (seg1->mr_nsegs--)
1495 rpcrdma_unmap_one(ia, seg++);
1496 }
1497 if (rc)
1498 dprintk("RPC: %s: failed ib_unmap_fmr,"
1499 " status %i\n", __func__, rc);
1500 break; 1579 break;
1501 1580
1502 case RPCRDMA_MEMWINDOWS_ASYNC: 1581 case RPCRDMA_MEMWINDOWS_ASYNC:
1503 case RPCRDMA_MEMWINDOWS: 1582 case RPCRDMA_MEMWINDOWS:
1504 { 1583 rc = rpcrdma_deregister_memwin_external(seg, ia, r_xprt, &r);
1505 struct ib_mw_bind param;
1506 BUG_ON(nsegs != 1);
1507 param.mr = ia->ri_bind_mem;
1508 param.addr = 0ULL; /* unbind */
1509 param.length = 0;
1510 param.mw_access_flags = 0;
1511 if (r) {
1512 param.wr_id = (u64) (unsigned long) r;
1513 param.send_flags = IB_SEND_SIGNALED;
1514 INIT_CQCOUNT(&r_xprt->rx_ep);
1515 } else {
1516 param.wr_id = 0ULL;
1517 param.send_flags = 0;
1518 DECR_CQCOUNT(&r_xprt->rx_ep);
1519 }
1520 rc = ib_bind_mw(ia->ri_id->qp,
1521 seg->mr_chunk.rl_mw->r.mw, &param);
1522 rpcrdma_unmap_one(ia, seg);
1523 }
1524 if (rc)
1525 dprintk("RPC: %s: failed ib_(un)bind_mw,"
1526 " status %i\n", __func__, rc);
1527 else
1528 r = NULL; /* will upcall on completion */
1529 break; 1584 break;
1530 1585
1531 default: 1586 default:
1532 rc = ib_dereg_mr(seg1->mr_chunk.rl_mr); 1587 rc = rpcrdma_deregister_default_external(seg, ia);
1533 seg1->mr_chunk.rl_mr = NULL;
1534 while (seg1->mr_nsegs--)
1535 rpcrdma_unmap_one(ia, seg++);
1536 if (rc)
1537 dprintk("RPC: %s: failed ib_dereg_mr,"
1538 " status %i\n", __func__, rc);
1539 break; 1588 break;
1540 } 1589 }
1541 if (r) { 1590 if (r) {
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-17 21:28:17 -0500