IB/isert: Accept RDMA_WRITE completions
In case of protected transactions, we will need to check the protection status of the transaction before sending SCSI response. So be ready for RDMA_WRITE completions. currently we don't ask for these completions, but for T10-PI we will. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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@ -51,6 +51,8 @@ isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn);
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static int
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static int
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isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
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isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
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struct isert_rdma_wr *wr);
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struct isert_rdma_wr *wr);
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static int
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isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd);
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static void
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static void
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isert_qp_event_callback(struct ib_event *e, void *context)
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isert_qp_event_callback(struct ib_event *e, void *context)
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@ -1651,6 +1653,18 @@ isert_completion_put(struct iser_tx_desc *tx_desc, struct isert_cmd *isert_cmd,
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isert_put_cmd(isert_cmd);
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isert_put_cmd(isert_cmd);
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}
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}
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static void
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isert_completion_rdma_write(struct iser_tx_desc *tx_desc,
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struct isert_cmd *isert_cmd)
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{
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struct iscsi_cmd *cmd = isert_cmd->iscsi_cmd;
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struct isert_conn *isert_conn = isert_cmd->conn;
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struct isert_device *device = isert_conn->conn_device;
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device->unreg_rdma_mem(isert_cmd, isert_conn);
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isert_put_response(isert_conn->conn, cmd);
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}
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static void
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static void
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isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
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isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
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struct isert_cmd *isert_cmd)
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struct isert_cmd *isert_cmd)
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@ -1773,8 +1787,9 @@ __isert_send_completion(struct iser_tx_desc *tx_desc,
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isert_conn, ib_dev);
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isert_conn, ib_dev);
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break;
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break;
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case ISER_IB_RDMA_WRITE:
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case ISER_IB_RDMA_WRITE:
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pr_err("isert_send_completion: Got ISER_IB_RDMA_WRITE\n");
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pr_debug("isert_send_completion: Got ISER_IB_RDMA_WRITE\n");
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dump_stack();
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atomic_dec(&isert_conn->post_send_buf_count);
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isert_completion_rdma_write(tx_desc, isert_cmd);
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break;
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break;
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case ISER_IB_RDMA_READ:
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case ISER_IB_RDMA_READ:
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pr_debug("isert_send_completion: Got ISER_IB_RDMA_READ:\n");
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pr_debug("isert_send_completion: Got ISER_IB_RDMA_READ:\n");
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