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IB/iser: Implement check_protection

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Once the iSCSI transaction is completed we must implement
check_protection in order to notify on DIF errors that may have
occured.

The routine boils down to calling ib_check_mr_status to get the
signature status of the transaction.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Alex Tabachnik <alext@mellanox.com>

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sagi Grimberg
2014-03-05 19:43:50 +02:00
committed by Roland Dreier
parent 55e51eda48
commit 0a7a08ad6f
3 changed files with 62 additions and 0 deletions
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13
drivers/infiniband/ulp/iser/iscsi_iser.c
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@@ -306,6 +306,18 @@ static void iscsi_iser_cleanup_task(struct iscsi_task *task)
}
}
static u8 iscsi_iser_check_protection(struct iscsi_task *task, sector_t *sector)
{
struct iscsi_iser_task *iser_task = task->dd_data;
if (iser_task->dir[ISER_DIR_IN])
return iser_check_task_pi_status(iser_task, ISER_DIR_IN,
sector);
else
return iser_check_task_pi_status(iser_task, ISER_DIR_OUT,
sector);
}
static struct iscsi_cls_conn *
iscsi_iser_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
{
@@ -742,6 +754,7 @@ static struct iscsi_transport iscsi_iser_transport = {
.xmit_task = iscsi_iser_task_xmit,
.cleanup_task = iscsi_iser_cleanup_task,
.alloc_pdu = iscsi_iser_pdu_alloc,
.check_protection = iscsi_iser_check_protection,
/* recovery */
.session_recovery_timedout = iscsi_session_recovery_timedout,