Lines Matching full:req
79 static int user_sdma_send_pkts(struct user_sdma_request *req,
83 static void user_sdma_free_request(struct user_sdma_request *req, bool unpin);
84 static int pin_vector_pages(struct user_sdma_request *req,
88 static int check_header_template(struct user_sdma_request *req,
91 static int set_txreq_header(struct user_sdma_request *req,
93 static int set_txreq_header_ahg(struct user_sdma_request *req,
337 struct user_sdma_request *req; in hfi1_user_sdma_process_request() local
344 if (iovec[idx].iov_len < sizeof(info) + sizeof(req->hdr)) { in hfi1_user_sdma_process_request()
349 iovec[idx].iov_len, sizeof(info) + sizeof(req->hdr)); in hfi1_user_sdma_process_request()
399 req = pq->reqs + info.comp_idx; in hfi1_user_sdma_process_request()
400 req->data_iovs = req_iovcnt(info.ctrl) - 1; /* subtract header vector */ in hfi1_user_sdma_process_request()
401 req->data_len = 0; in hfi1_user_sdma_process_request()
402 req->pq = pq; in hfi1_user_sdma_process_request()
403 req->cq = cq; in hfi1_user_sdma_process_request()
404 req->ahg_idx = -1; in hfi1_user_sdma_process_request()
405 req->iov_idx = 0; in hfi1_user_sdma_process_request()
406 req->sent = 0; in hfi1_user_sdma_process_request()
407 req->seqnum = 0; in hfi1_user_sdma_process_request()
408 req->seqcomp = 0; in hfi1_user_sdma_process_request()
409 req->seqsubmitted = 0; in hfi1_user_sdma_process_request()
410 req->tids = NULL; in hfi1_user_sdma_process_request()
411 req->has_error = 0; in hfi1_user_sdma_process_request()
412 INIT_LIST_HEAD(&req->txps); in hfi1_user_sdma_process_request()
414 memcpy(&req->info, &info, sizeof(info)); in hfi1_user_sdma_process_request()
421 if (req->data_iovs < 2) { in hfi1_user_sdma_process_request()
422 SDMA_DBG(req, in hfi1_user_sdma_process_request()
427 req->data_iovs--; in hfi1_user_sdma_process_request()
430 if (!info.npkts || req->data_iovs > MAX_VECTORS_PER_REQ) { in hfi1_user_sdma_process_request()
431 SDMA_DBG(req, "Too many vectors (%u/%u)", req->data_iovs, in hfi1_user_sdma_process_request()
437 ret = copy_from_user(&req->hdr, iovec[idx].iov_base + sizeof(info), in hfi1_user_sdma_process_request()
438 sizeof(req->hdr)); in hfi1_user_sdma_process_request()
440 SDMA_DBG(req, "Failed to copy header template (%d)", ret); in hfi1_user_sdma_process_request()
447 req->hdr.pbc[2] = 0; in hfi1_user_sdma_process_request()
450 opcode = (be32_to_cpu(req->hdr.bth[0]) >> 24) & 0xff; in hfi1_user_sdma_process_request()
453 SDMA_DBG(req, "Invalid opcode (%d)", opcode); in hfi1_user_sdma_process_request()
462 vl = (le16_to_cpu(req->hdr.pbc[0]) >> 12) & 0xF; in hfi1_user_sdma_process_request()
463 sc = (((be16_to_cpu(req->hdr.lrh[0]) >> 12) & 0xF) | in hfi1_user_sdma_process_request()
464 (((le16_to_cpu(req->hdr.pbc[1]) >> 14) & 0x1) << 4)); in hfi1_user_sdma_process_request()
467 SDMA_DBG(req, "Invalid SC(%u)/VL(%u)", sc, vl); in hfi1_user_sdma_process_request()
473 pkey = (u16)be32_to_cpu(req->hdr.bth[0]); in hfi1_user_sdma_process_request()
474 slid = be16_to_cpu(req->hdr.lrh[3]); in hfi1_user_sdma_process_request()
485 if ((be16_to_cpu(req->hdr.lrh[0]) & 0x3) == HFI1_LRH_GRH) { in hfi1_user_sdma_process_request()
486 SDMA_DBG(req, "User tried to pass in a GRH"); in hfi1_user_sdma_process_request()
491 req->koffset = le32_to_cpu(req->hdr.kdeth.swdata[6]); in hfi1_user_sdma_process_request()
496 req->tidoffset = KDETH_GET(req->hdr.kdeth.ver_tid_offset, OFFSET) * in hfi1_user_sdma_process_request()
497 (KDETH_GET(req->hdr.kdeth.ver_tid_offset, OM) ? in hfi1_user_sdma_process_request()
500 info.comp_idx, req->tidoffset); in hfi1_user_sdma_process_request()
504 for (i = 0; i < req->data_iovs; i++) { in hfi1_user_sdma_process_request()
505 req->iovs[i].offset = 0; in hfi1_user_sdma_process_request()
506 INIT_LIST_HEAD(&req->iovs[i].list); in hfi1_user_sdma_process_request()
507 memcpy(&req->iovs[i].iov, in hfi1_user_sdma_process_request()
509 sizeof(req->iovs[i].iov)); in hfi1_user_sdma_process_request()
510 ret = pin_vector_pages(req, &req->iovs[i]); in hfi1_user_sdma_process_request()
512 req->data_iovs = i; in hfi1_user_sdma_process_request()
515 req->data_len += req->iovs[i].iov.iov_len; in hfi1_user_sdma_process_request()
518 info.comp_idx, req->data_len); in hfi1_user_sdma_process_request()
519 if (pcount > req->info.npkts) in hfi1_user_sdma_process_request()
520 pcount = req->info.npkts; in hfi1_user_sdma_process_request()
529 if (req_opcode(req->info.ctrl) == EXPECTED) { in hfi1_user_sdma_process_request()
530 u16 ntids = iovec[idx].iov_len / sizeof(*req->tids); in hfi1_user_sdma_process_request()
545 ntids * sizeof(*req->tids)); in hfi1_user_sdma_process_request()
548 SDMA_DBG(req, "Failed to copy %d TIDs (%d)", in hfi1_user_sdma_process_request()
552 req->tids = tmp; in hfi1_user_sdma_process_request()
553 req->n_tids = ntids; in hfi1_user_sdma_process_request()
554 req->tididx = 0; in hfi1_user_sdma_process_request()
558 dlid = be16_to_cpu(req->hdr.lrh[1]); in hfi1_user_sdma_process_request()
561 req->sde = sdma_select_user_engine(dd, selector, vl); in hfi1_user_sdma_process_request()
563 if (!req->sde || !sdma_running(req->sde)) { in hfi1_user_sdma_process_request()
569 if (req->info.npkts > 1 && HFI1_CAP_IS_USET(SDMA_AHG)) in hfi1_user_sdma_process_request()
570 req->ahg_idx = sdma_ahg_alloc(req->sde); in hfi1_user_sdma_process_request()
575 ret = user_sdma_send_pkts(req, pcount); in hfi1_user_sdma_process_request()
585 while (req->seqsubmitted != req->info.npkts) { in hfi1_user_sdma_process_request()
586 ret = user_sdma_send_pkts(req, pcount); in hfi1_user_sdma_process_request()
605 if (req->seqsubmitted < req->info.npkts) { in hfi1_user_sdma_process_request()
606 if (req->seqsubmitted) in hfi1_user_sdma_process_request()
608 (req->seqcomp == req->seqsubmitted - 1)); in hfi1_user_sdma_process_request()
609 user_sdma_free_request(req, true); in hfi1_user_sdma_process_request()
616 static inline u32 compute_data_length(struct user_sdma_request *req, in compute_data_length() argument
633 if (!req->seqnum) { in compute_data_length()
634 if (req->data_len < sizeof(u32)) in compute_data_length()
635 len = req->data_len; in compute_data_length()
637 len = ((be16_to_cpu(req->hdr.lrh[2]) << 2) - in compute_data_length()
639 } else if (req_opcode(req->info.ctrl) == EXPECTED) { in compute_data_length()
640 u32 tidlen = EXP_TID_GET(req->tids[req->tididx], LEN) * in compute_data_length()
646 len = min(tidlen - req->tidoffset, (u32)req->info.fragsize); in compute_data_length()
648 if (unlikely(!len) && ++req->tididx < req->n_tids && in compute_data_length()
649 req->tids[req->tididx]) { in compute_data_length()
650 tidlen = EXP_TID_GET(req->tids[req->tididx], in compute_data_length()
652 req->tidoffset = 0; in compute_data_length()
653 len = min_t(u32, tidlen, req->info.fragsize); in compute_data_length()
660 len = min(len, req->data_len - req->sent); in compute_data_length()
662 len = min(req->data_len - req->sent, (u32)req->info.fragsize); in compute_data_length()
664 trace_hfi1_sdma_user_compute_length(req->pq->dd, in compute_data_length()
665 req->pq->ctxt, in compute_data_length()
666 req->pq->subctxt, in compute_data_length()
667 req->info.comp_idx, in compute_data_length()
685 static int user_sdma_txadd_ahg(struct user_sdma_request *req, in user_sdma_txadd_ahg() argument
690 u16 pbclen = le16_to_cpu(req->hdr.pbc[0]); in user_sdma_txadd_ahg()
691 u32 lrhlen = get_lrh_len(req->hdr, pad_len(datalen)); in user_sdma_txadd_ahg()
692 struct hfi1_user_sdma_pkt_q *pq = req->pq; in user_sdma_txadd_ahg()
702 memcpy(&tx->hdr, &req->hdr, sizeof(tx->hdr)); in user_sdma_txadd_ahg()
707 ret = check_header_template(req, &tx->hdr, lrhlen, datalen); in user_sdma_txadd_ahg()
711 sizeof(tx->hdr) + datalen, req->ahg_idx, in user_sdma_txadd_ahg()
721 static int user_sdma_txadd(struct user_sdma_request *req, in user_sdma_txadd() argument
732 struct hfi1_user_sdma_pkt_q *pq = req->pq; in user_sdma_txadd()
738 len = offset + req->info.fragsize > PAGE_SIZE ? in user_sdma_txadd()
739 PAGE_SIZE - offset : req->info.fragsize; in user_sdma_txadd()
744 SDMA_DBG(req, "SDMA txreq add page failed %d\n", ret); in user_sdma_txadd()
751 req->iov_idx < req->data_iovs - 1)) { in user_sdma_txadd()
753 iovec = &req->iovs[++req->iov_idx]; in user_sdma_txadd()
763 static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts) in user_sdma_send_pkts() argument
771 if (!req->pq) in user_sdma_send_pkts()
774 pq = req->pq; in user_sdma_send_pkts()
777 if (READ_ONCE(req->has_error)) in user_sdma_send_pkts()
783 if (unlikely(req->seqnum == req->info.npkts)) { in user_sdma_send_pkts()
784 if (!list_empty(&req->txps)) in user_sdma_send_pkts()
789 if (!maxpkts || maxpkts > req->info.npkts - req->seqnum) in user_sdma_send_pkts()
790 maxpkts = req->info.npkts - req->seqnum; in user_sdma_send_pkts()
801 if (READ_ONCE(req->has_error)) in user_sdma_send_pkts()
809 tx->req = req; in user_sdma_send_pkts()
816 if (req->seqnum == req->info.npkts - 1) in user_sdma_send_pkts()
825 if (req->data_len) { in user_sdma_send_pkts()
826 iovec = &req->iovs[req->iov_idx]; in user_sdma_send_pkts()
828 if (++req->iov_idx == req->data_iovs) { in user_sdma_send_pkts()
832 iovec = &req->iovs[req->iov_idx]; in user_sdma_send_pkts()
836 datalen = compute_data_length(req, tx); in user_sdma_send_pkts()
847 SDMA_DBG(req, in user_sdma_send_pkts()
856 if (req->ahg_idx >= 0) { in user_sdma_send_pkts()
857 if (!req->seqnum) { in user_sdma_send_pkts()
858 ret = user_sdma_txadd_ahg(req, tx, datalen); in user_sdma_send_pkts()
864 changes = set_txreq_header_ahg(req, tx, in user_sdma_send_pkts()
872 ret = sdma_txinit(&tx->txreq, 0, sizeof(req->hdr) + in user_sdma_send_pkts()
882 ret = set_txreq_header(req, tx, datalen); in user_sdma_send_pkts()
892 (req->sent + data_sent) < req->data_len) { in user_sdma_send_pkts()
893 ret = user_sdma_txadd(req, tx, iovec, datalen, in user_sdma_send_pkts()
902 req->koffset += datalen; in user_sdma_send_pkts()
903 if (req_opcode(req->info.ctrl) == EXPECTED) in user_sdma_send_pkts()
904 req->tidoffset += datalen; in user_sdma_send_pkts()
905 req->sent += data_sent; in user_sdma_send_pkts()
906 if (req->data_len) in user_sdma_send_pkts()
908 list_add_tail(&tx->txreq.list, &req->txps); in user_sdma_send_pkts()
914 tx->seqnum = req->seqnum++; in user_sdma_send_pkts()
918 ret = sdma_send_txlist(req->sde, &pq->busy, &req->txps, &count); in user_sdma_send_pkts()
919 req->seqsubmitted += count; in user_sdma_send_pkts()
920 if (req->seqsubmitted == req->info.npkts) { in user_sdma_send_pkts()
927 if (req->ahg_idx >= 0) in user_sdma_send_pkts()
928 sdma_ahg_free(req->sde, req->ahg_idx); in user_sdma_send_pkts()
949 static int pin_sdma_pages(struct user_sdma_request *req, in pin_sdma_pages() argument
956 struct hfi1_user_sdma_pkt_q *pq = req->pq; in pin_sdma_pages()
998 static int pin_vector_pages(struct user_sdma_request *req, in pin_vector_pages() argument
1002 struct hfi1_user_sdma_pkt_q *pq = req->pq; in pin_vector_pages()
1037 pinned = pin_sdma_pages(req, iovec, node, npages); in pin_vector_pages()
1049 ret = hfi1_mmu_rb_insert(req->pq->handler, &node->rb); in pin_vector_pages()
1068 static int check_header_template(struct user_sdma_request *req, in check_header_template() argument
1082 if (req->info.fragsize % PIO_BLOCK_SIZE || lrhlen & 0x3 || in check_header_template()
1083 lrhlen > get_lrh_len(*hdr, req->info.fragsize)) in check_header_template()
1086 if (req_opcode(req->info.ctrl) == EXPECTED) { in check_header_template()
1093 u32 tidval = req->tids[req->tididx], in check_header_template()
1101 (KDETH_GET(req->hdr.kdeth.ver_tid_offset, OM) ? in check_header_template()
1137 static int set_txreq_header(struct user_sdma_request *req, in set_txreq_header() argument
1140 struct hfi1_user_sdma_pkt_q *pq = req->pq; in set_txreq_header()
1148 memcpy(hdr, &req->hdr, sizeof(*hdr)); in set_txreq_header()
1165 if (unlikely(req->seqnum == 2)) { in set_txreq_header()
1173 req->hdr.pbc[0] = hdr->pbc[0]; in set_txreq_header()
1174 req->hdr.lrh[2] = hdr->lrh[2]; in set_txreq_header()
1182 if (unlikely(!req->seqnum)) { in set_txreq_header()
1183 ret = check_header_template(req, hdr, lrhlen, datalen); in set_txreq_header()
1191 (req_opcode(req->info.ctrl) == EXPECTED), in set_txreq_header()
1192 req->seqnum)); in set_txreq_header()
1199 hdr->kdeth.swdata[6] = cpu_to_le32(req->koffset); in set_txreq_header()
1201 if (req_opcode(req->info.ctrl) == EXPECTED) { in set_txreq_header()
1202 tidval = req->tids[req->tididx]; in set_txreq_header()
1207 if ((req->tidoffset) == (EXP_TID_GET(tidval, LEN) * in set_txreq_header()
1209 req->tidoffset = 0; in set_txreq_header()
1214 if (++req->tididx > req->n_tids - 1 || in set_txreq_header()
1215 !req->tids[req->tididx]) { in set_txreq_header()
1218 tidval = req->tids[req->tididx]; in set_txreq_header()
1237 pq->dd, pq->ctxt, pq->subctxt, req->info.comp_idx, in set_txreq_header()
1238 req->tidoffset, req->tidoffset >> omfactor, in set_txreq_header()
1241 req->tidoffset >> omfactor); in set_txreq_header()
1247 req->info.comp_idx, hdr, tidval); in set_txreq_header()
1251 static int set_txreq_header_ahg(struct user_sdma_request *req, in set_txreq_header_ahg() argument
1257 struct hfi1_user_sdma_pkt_q *pq = req->pq; in set_txreq_header_ahg()
1258 struct hfi1_pkt_header *hdr = &req->hdr; in set_txreq_header_ahg()
1280 val32 = (be32_to_cpu(hdr->bth[2]) + req->seqnum) & in set_txreq_header_ahg()
1294 (__force u16)cpu_to_le16(req->koffset & 0xffff)); in set_txreq_header_ahg()
1298 (__force u16)cpu_to_le16(req->koffset >> 16)); in set_txreq_header_ahg()
1301 if (req_opcode(req->info.ctrl) == EXPECTED) { in set_txreq_header_ahg()
1304 tidval = req->tids[req->tididx]; in set_txreq_header_ahg()
1310 if ((req->tidoffset) == (EXP_TID_GET(tidval, LEN) * in set_txreq_header_ahg()
1312 req->tidoffset = 0; in set_txreq_header_ahg()
1317 if (++req->tididx > req->n_tids - 1 || in set_txreq_header_ahg()
1318 !req->tids[req->tididx]) in set_txreq_header_ahg()
1320 tidval = req->tids[req->tididx]; in set_txreq_header_ahg()
1330 ((req->tidoffset >> omfactor) in set_txreq_header_ahg()
1357 req->info.comp_idx, req->sde->this_idx, in set_txreq_header_ahg()
1358 req->ahg_idx, ahg, idx, tidval); in set_txreq_header_ahg()
1361 datalen, req->ahg_idx, idx, in set_txreq_header_ahg()
1362 ahg, sizeof(req->hdr), in set_txreq_header_ahg()
1382 struct user_sdma_request *req; in user_sdma_txreq_cb() local
1387 if (!tx->req) in user_sdma_txreq_cb()
1390 req = tx->req; in user_sdma_txreq_cb()
1391 pq = req->pq; in user_sdma_txreq_cb()
1392 cq = req->cq; in user_sdma_txreq_cb()
1395 SDMA_DBG(req, "SDMA completion with error %d", in user_sdma_txreq_cb()
1397 WRITE_ONCE(req->has_error, 1); in user_sdma_txreq_cb()
1401 req->seqcomp = tx->seqnum; in user_sdma_txreq_cb()
1405 if (req->seqcomp != req->info.npkts - 1) in user_sdma_txreq_cb()
1408 user_sdma_free_request(req, false); in user_sdma_txreq_cb()
1409 set_comp_state(pq, cq, req->info.comp_idx, state, status); in user_sdma_txreq_cb()
1419 static void user_sdma_free_request(struct user_sdma_request *req, bool unpin) in user_sdma_free_request() argument
1423 if (!list_empty(&req->txps)) { in user_sdma_free_request()
1426 list_for_each_entry_safe(t, p, &req->txps, list) { in user_sdma_free_request()
1430 sdma_txclean(req->pq->dd, t); in user_sdma_free_request()
1431 kmem_cache_free(req->pq->txreq_cache, tx); in user_sdma_free_request()
1435 for (i = 0; i < req->data_iovs; i++) { in user_sdma_free_request()
1436 struct sdma_mmu_node *node = req->iovs[i].node; in user_sdma_free_request()
1441 req->iovs[i].node = NULL; in user_sdma_free_request()
1444 hfi1_mmu_rb_remove(req->pq->handler, in user_sdma_free_request()
1450 kfree(req->tids); in user_sdma_free_request()
1451 clear_bit(req->info.comp_idx, req->pq->req_in_use); in user_sdma_free_request()