| 59 | } |
| 60 | |
| 61 | static int |
| 62 | mana_alloc_and_post_rx_wqe(struct mana_rxq *rxq) |
| 63 | { |
| 64 | struct rte_mbuf *mbuf = NULL; |
| 65 | struct gdma_sgl_element sgl[1]; |
| 66 | struct gdma_work_request request; |
| 67 | uint32_t wqe_size_in_bu; |
| 68 | struct mana_priv *priv = rxq->priv; |
| 69 | int ret; |
| 70 | struct mana_mr_cache *mr; |
| 71 | |
| 72 | mbuf = rte_pktmbuf_alloc(rxq->mp); |
| 73 | if (!mbuf) { |
| 74 | rxq->stats.nombuf++; |
| 75 | return -ENOMEM; |
| 76 | } |
| 77 | |
| 78 | mr = mana_find_pmd_mr(&rxq->mr_btree, priv, mbuf); |
| 79 | if (!mr) { |
| 80 | DP_LOG(ERR, "failed to register RX MR"); |
| 81 | rte_pktmbuf_free(mbuf); |
| 82 | return -ENOMEM; |
| 83 | } |
| 84 | |
| 85 | request.gdma_header.struct_size = sizeof(request); |
| 86 | |
| 87 | sgl[0].address = rte_cpu_to_le_64(rte_pktmbuf_mtod(mbuf, uint64_t)); |
| 88 | sgl[0].memory_key = mr->lkey; |
| 89 | sgl[0].size = |
| 90 | rte_pktmbuf_data_room_size(rxq->mp) - |
| 91 | RTE_PKTMBUF_HEADROOM; |
| 92 | |
| 93 | request.sgl = sgl; |
| 94 | request.num_sgl_elements = 1; |
| 95 | request.inline_oob_data = NULL; |
| 96 | request.inline_oob_size_in_bytes = 0; |
| 97 | request.flags = 0; |
| 98 | request.client_data_unit = NOT_USING_CLIENT_DATA_UNIT; |
| 99 | |
| 100 | ret = gdma_post_work_request(&rxq->gdma_rq, &request, &wqe_size_in_bu); |
| 101 | if (!ret) { |
| 102 | struct mana_rxq_desc *desc = |
| 103 | &rxq->desc_ring[rxq->desc_ring_head]; |
| 104 | |
| 105 | /* update queue for tracking pending packets */ |
| 106 | desc->pkt = mbuf; |
| 107 | desc->wqe_size_in_bu = wqe_size_in_bu; |
| 108 | #ifdef RTE_ARCH_32 |
| 109 | rxq->wqe_cnt_to_short_db += wqe_size_in_bu; |
| 110 | #endif |
| 111 | rxq->desc_ring_head = (rxq->desc_ring_head + 1) % rxq->num_desc; |
| 112 | } else { |
| 113 | DP_LOG(DEBUG, "failed to post recv ret %d", ret); |
| 114 | return ret; |
| 115 | } |
| 116 | |
| 117 | return 0; |
| 118 | } |
no test coverage detected