ulp/isert/ib_isert.c

783 isert_login_post_send(struct isert_conn *isert_conn, struct iser_tx_desc *tx_desc)
789 	ib_dma_sync_single_for_device(ib_dev, tx_desc->dma_addr,
792 	tx_desc->tx_cqe.done = isert_login_send_done;
795 	send_wr.wr_cqe	= &tx_desc->tx_cqe;
796 	send_wr.sg_list	= tx_desc->tx_sg;
797 	send_wr.num_sge	= tx_desc->num_sge;
810 			 struct iser_tx_desc *tx_desc)
813 	memset(&tx_desc->iser_header, 0, sizeof(struct iser_ctrl));
814 	tx_desc->iser_header.flags = ISCSI_CTRL;
816 	tx_desc->num_sge = 1;
818 	if (tx_desc->tx_sg[0].lkey != device->pd->local_dma_lkey) {
819 		tx_desc->tx_sg[0].lkey = device->pd->local_dma_lkey;
820 		isert_dbg("tx_desc %p lkey mismatch, fixing\n", tx_desc);
827 		       struct iser_tx_desc *tx_desc)
832 	ib_dma_sync_single_for_cpu(ib_dev, tx_desc->dma_addr,
835 	__isert_create_send_desc(device, tx_desc);
840 		   struct iser_tx_desc *tx_desc)
846 	dma_addr = ib_dma_map_single(ib_dev, (void *)tx_desc,
853 	tx_desc->dma_addr = dma_addr;
854 	tx_desc->tx_sg[0].addr	= tx_desc->dma_addr;
855 	tx_desc->tx_sg[0].length = ISER_HEADERS_LEN;
856 	tx_desc->tx_sg[0].lkey = device->pd->local_dma_lkey;
859 		  tx_desc->tx_sg[0].addr, tx_desc->tx_sg[0].length,
860 		  tx_desc->tx_sg[0].lkey);
869 	struct iser_tx_desc *tx_desc = &isert_cmd->tx_desc;
871 	tx_desc->tx_cqe.done = isert_send_done;
872 	send_wr->wr_cqe = &tx_desc->tx_cqe;
881 	send_wr->sg_list = &tx_desc->tx_sg[0];
882 	send_wr->num_sge = isert_cmd->tx_desc.num_sge;
923 	struct iser_tx_desc *tx_desc = &isert_conn->login_tx_desc;
926 	__isert_create_send_desc(device, tx_desc);
928 	memcpy(&tx_desc->iscsi_header, &login->rsp[0],
931 	isert_init_tx_hdrs(isert_conn, tx_desc);
934 		struct ib_sge *tx_dsg = &tx_desc->tx_sg[1];
947 		tx_desc->num_sge = 2;
972 	ret = isert_login_post_send(isert_conn, tx_desc);
1477 		hdr = (struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header;
1506 isert_unmap_tx_desc(struct iser_tx_desc *tx_desc, struct ib_device *ib_dev)
1508 	if (tx_desc->dma_addr != 0) {
1509 		isert_dbg("unmap single for tx_desc->dma_addr\n");
1510 		ib_dma_unmap_single(ib_dev, tx_desc->dma_addr,
1512 		tx_desc->dma_addr = 0;
1517 isert_completion_put(struct iser_tx_desc *tx_desc, struct isert_cmd *isert_cmd,
1527 	isert_unmap_tx_desc(tx_desc, ib_dev);
1680 		isert_completion_put(&isert_cmd->tx_desc, isert_cmd,
1698 	struct iser_tx_desc *tx_desc = cqe_to_tx_desc(wc->wr_cqe);
1706 	isert_unmap_tx_desc(tx_desc, ib_dev);
1714 	struct iser_tx_desc *tx_desc = cqe_to_tx_desc(wc->wr_cqe);
1715 	struct isert_cmd *isert_cmd = tx_desc_to_cmd(tx_desc);
1721 		isert_completion_put(tx_desc, isert_cmd, ib_dev, true);
1732 		isert_unmap_tx_desc(tx_desc, ib_dev);
1739 		isert_completion_put(tx_desc, isert_cmd, ib_dev, false);
1753 	ret = ib_post_send(isert_conn->qp, &isert_cmd->tx_desc.send_wr, NULL);
1766 	struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
1768 				&isert_cmd->tx_desc.iscsi_header;
1770 	isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
1772 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
1781 		struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1];
1802 		isert_cmd->tx_desc.num_sge = 2;
1854 	struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
1856 	isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
1858 			       &isert_cmd->tx_desc.iscsi_header,
1860 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
1873 	struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
1875 	isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
1877 				&isert_cmd->tx_desc.iscsi_header);
1878 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
1891 	struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
1893 	isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
1895 				  &isert_cmd->tx_desc.iscsi_header);
1896 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
1909 	struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
1912 	struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1];
1914 		(struct iscsi_reject *)&isert_cmd->tx_desc.iscsi_header;
1916 	isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
1918 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
1930 	isert_cmd->tx_desc.num_sge = 2;
1944 	struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
1946 		(struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header;
1950 	isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
1956 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
1961 		struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1];
1973 		isert_cmd->tx_desc.num_sge = 2;
2108 		isert_cmd->tx_desc.tx_cqe.done = isert_rdma_write_done;
2109 		cqe = &isert_cmd->tx_desc.tx_cqe;
2112 		 * Build isert_conn->tx_desc for iSCSI response PDU and attach
2115 				       &isert_cmd->tx_desc);
2117 				     &isert_cmd->tx_desc.iscsi_header);
2118 		isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
2120 				   &isert_cmd->tx_desc.send_wr);
2126 		chain_wr = &isert_cmd->tx_desc.send_wr;
2144 	isert_cmd->tx_desc.tx_cqe.done = isert_rdma_read_done;
2146 				     &isert_cmd->tx_desc.tx_cqe, NULL);