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@xxxxxxxxxxxx>
---
drivers/infiniband/ulp/isert/ib_isert.c | 20 +++++++++++++++++---
1 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 98aab21..9aa933e 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -51,6 +51,8 @@ isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn);
static int
isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
struct isert_rdma_wr *wr);
+static int
+isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd);
static void
isert_qp_event_callback(struct ib_event *e, void *context)
@@ -1602,6 +1604,18 @@ isert_completion_put(struct iser_tx_desc *tx_desc, struct isert_cmd *isert_cmd,
}
static void
+isert_completion_rdma_write(struct iser_tx_desc *tx_desc,
+ struct isert_cmd *isert_cmd)
+{
+ struct iscsi_cmd *cmd = isert_cmd->iscsi_cmd;
+ struct isert_conn *isert_conn = isert_cmd->conn;
+ struct isert_device *device = isert_conn->conn_device;
+
+ device->unreg_rdma_mem(isert_cmd, isert_conn);
+ isert_put_response(isert_conn->conn, cmd);
+}
+
+static void
isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
struct isert_cmd *isert_cmd)
{
@@ -1721,9 +1735,9 @@ __isert_send_completion(struct iser_tx_desc *tx_desc,
isert_conn, ib_dev);
break;
case ISER_IB_RDMA_WRITE:
- pr_err("isert_send_completion: Got ISER_IB_RDMA_WRITE\n");
- dump_stack();
- break;
+ pr_debug("isert_send_completion: Got ISER_IB_RDMA_WRITE\n");
+ atomic_dec(&isert_conn->post_send_buf_count);
+ isert_completion_rdma_write(tx_desc, isert_cmd);
case ISER_IB_RDMA_READ:
pr_debug("isert_send_completion: Got ISER_IB_RDMA_READ:\n");
--
1.7.1
--
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