diff options
| author | Sagi Grimberg <sagig@mellanox.com> | 2014-02-19 17:50:24 +0200 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-04-07 01:48:46 -0700 |
| commit | f93f3a70da9175b4641f93d466d779675eb83fa2 (patch) | |
| tree | 98a7a3315ceda22991895b35ea401dea3b57428e /drivers/infiniband | |
| parent | d3e125dac1f4fd983bb6d8d654f152f243f7c953 (diff) | |
| download | linux-f93f3a70da9175b4641f93d466d779675eb83fa2.tar.bz2 | |
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>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 72063147933c..2eb07b943ed9 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) @@ -1652,6 +1654,18 @@ 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) { @@ -1773,8 +1787,9 @@ __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(); + 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); break; case ISER_IB_RDMA_READ: pr_debug("isert_send_completion: Got ISER_IB_RDMA_READ:\n"); |