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IB/cm: Cancel mad on the DREQ event when the state is MRA_REP_RCVD

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[ Upstream commit 107dd7beba ]

On the passive side when the disconnectReq event comes, if the current
state is MRA_REP_RCVD, it needs to cancel the MAD before entering the
DREQ_RCVD and TIMEWAIT states, otherwise the destroy_id may block until
this mad will reach timeout.

Fixes: a977049dac ("[PATCH] IB: Add the kernel CM implementation")
Link: https://lore.kernel.org/r/75261c00c1d82128b1d981af9ff46e994186e621.1649062436.git.leonro@nvidia.com
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mark Zhang 2022-04-04 11:58:05 +03:00 committed by Greg Kroah-Hartman
parent 34b8ba1cb3
commit 3b5fd69362
1 changed files with 1 additions and 2 deletions
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3
drivers/infiniband/core/cm.c
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@ -2824,6 +2824,7 @@ static int cm_dreq_handler(struct cm_work *work)
switch (cm_id_priv->id.state) {
case IB_CM_REP_SENT:
case IB_CM_DREQ_SENT:
case IB_CM_MRA_REP_RCVD:
ib_cancel_mad(cm_id_priv->msg);
break;
case IB_CM_ESTABLISHED:
@ -2831,8 +2832,6 @@ static int cm_dreq_handler(struct cm_work *work)
cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
ib_cancel_mad(cm_id_priv->msg);
break;
case IB_CM_MRA_REP_RCVD:
break;
case IB_CM_TIMEWAIT:
atomic_long_inc(&work->port->counters[CM_RECV_DUPLICATES]
[CM_DREQ_COUNTER]);