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| author | Sagi Grimberg <sagig@mellanox.com> | 2014-04-29 13:13:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-16 13:42:53 -0700 |
| commit | c2334086a4bb352c85c4dc9bb18d23586329fb08 (patch) | |
| tree | 4ca6083035eaf61edd95e208313837c0e3c1d427 /drivers/infiniband | |
| parent | ed6b7164b4a932f91630da7dadaa1aeb33029d25 (diff) | |
| download | linux-3.10-c2334086a4bb352c85c4dc9bb18d23586329fb08.tar.gz linux-3.10-c2334086a4bb352c85c4dc9bb18d23586329fb08.tar.bz2 linux-3.10-c2334086a4bb352c85c4dc9bb18d23586329fb08.zip | |
Target/iscsi,iser: Avoid accepting transport connections during stop stage
commit 14f4b54fe38f3a8f8392a50b951c8aa43b63687a upstream.
When the target is in stop stage, iSER transport initiates RDMA disconnects.
The iSER initiator may wish to establish a new connection over the
still existing network portal. In this case iSER transport should not
accept and resume new RDMA connections. In order to learn that, iscsi_np
is added with enabled flag so the iSER transport can check when deciding
weather to accept and resume a new connection request.
The iscsi_np is enabled after successful transport setup, and disabled
before iscsi_np login threads are cleaned up.
(Fix up context changes for v3.10.y - nab)
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index bae20f8bb03..14499991802 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -382,6 +382,14 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) struct ib_device *ib_dev = cma_id->device; int ret = 0; + spin_lock_bh(&np->np_thread_lock); + if (!np->enabled) { + spin_unlock_bh(&np->np_thread_lock); + pr_debug("iscsi_np is not enabled, reject connect request\n"); + return rdma_reject(cma_id, NULL, 0); + } + spin_unlock_bh(&np->np_thread_lock); + pr_debug("Entering isert_connect_request cma_id: %p, context: %p\n", cma_id, cma_id->context); |