diff options
| author | Ariel Nahum <arieln@mellanox.com> | 2014-12-07 14:09:54 (GMT) |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-12-16 02:11:44 (GMT) |
| commit | 5426b1711fd006cb0574a2a24bf738cc38d5220d (patch) | |
| tree | 0f409edd9037a1528a81b0d741faa60c23c283cb /drivers/infiniband/ulp | |
| parent | 16df2a26fb3efb52f066098cdbd0f81c8378d861 (diff) | |
| download | linux-5426b1711fd006cb0574a2a24bf738cc38d5220d.tar.xz | |
IB/iser: Collapse cleanup and disconnect handlers
No real need to wait for TIMEWAIT_EXIT before we destroy the RDMA
resources (also TIMEAWAIT_EXIT is not guarenteed to always arrive). As
for the cma_id, only destroy it if the state is not DOWN where in this
case, conn_release is already running and we don't want to compete.
Signed-off-by: Ariel Nahum <arieln@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/ulp')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index cd4acc5..6a2a91c 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -629,9 +629,11 @@ void iser_conn_release(struct iser_conn *iser_conn) mutex_unlock(&ig.connlist_mutex); mutex_lock(&iser_conn->state_mutex); - if (iser_conn->state != ISER_CONN_DOWN) + if (iser_conn->state != ISER_CONN_DOWN) { iser_warn("iser conn %p state %d, expected state down.\n", iser_conn, iser_conn->state); + iser_conn->state = ISER_CONN_DOWN; + } /* * In case we never got to bind stage, we still need to * release IB resources (which is safe to call more than once). @@ -867,20 +869,21 @@ static int iser_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *eve break; case RDMA_CM_EVENT_DISCONNECTED: case RDMA_CM_EVENT_ADDR_CHANGE: - iser_disconnected_handler(cma_id); + case RDMA_CM_EVENT_TIMEWAIT_EXIT: + iser_cleanup_handler(cma_id, false); break; case RDMA_CM_EVENT_DEVICE_REMOVAL: /* * we *must* destroy the device as we cannot rely * on iscsid to be around to initiate error handling. - * also implicitly destroy the cma_id. + * also if we are not in state DOWN implicitly destroy + * the cma_id. */ iser_cleanup_handler(cma_id, true); - iser_conn->ib_conn.cma_id = NULL; - ret = 1; - break; - case RDMA_CM_EVENT_TIMEWAIT_EXIT: - iser_cleanup_handler(cma_id, false); + if (iser_conn->state != ISER_CONN_DOWN) { + iser_conn->ib_conn.cma_id = NULL; + ret = 1; + } break; default: iser_err("Unexpected RDMA CM event (%d)\n", event->event); |