diff options
| author | Jim Foraker <foraker1@llnl.gov> | 2012-05-02 20:57:23 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-05-14 21:42:44 +0200 |
| commit | 3236b2d469dba42fde837b8cb06308f7f360dfed (patch) | |
| tree | 755ed9ac544961594e8fb6c65061696e16a944cb /drivers/infiniband | |
| parent | IB/qib: Fix M_Key lease timeout handling (diff) | |
| download | linux-3236b2d469dba42fde837b8cb06308f7f360dfed.tar.xz linux-3236b2d469dba42fde837b8cb06308f7f360dfed.zip | |
IB/qib: MADs with misset M_Keys should return failure
If a MAD is sent directly to the local HCA rather than placed on a QP
and the MAD fails M_Key checks, there is no means to generate a
timeout for the client, which may hang. Instead we report
IB_MAD_RESULT_FAILURE, which operates the same for on-the-wire
packets, but will generate a send failure back to the client.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jim Foraker <foraker1@llnl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_mad.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c index ed611e8df64f..43390217a026 100644 --- a/drivers/infiniband/hw/qib/qib_mad.c +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -433,7 +433,7 @@ static int check_mkey(struct qib_ibport *ibp, struct ib_smp *smp, int mad_flags) ibp->mkey_lease_period * HZ; /* Generate a trap notice. */ qib_bad_mkey(ibp, smp); - ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; + ret = 1; } } @@ -464,6 +464,7 @@ static int subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev, ibp = to_iport(ibdev, port_num); ret = check_mkey(ibp, smp, 0); if (ret) + ret = IB_MAD_RESULT_FAILURE; goto bail; } } @@ -1848,6 +1849,7 @@ static int process_subn(struct ib_device *ibdev, int mad_flags, port_num && port_num <= ibdev->phys_port_cnt && port != port_num) (void) check_mkey(to_iport(ibdev, port_num), smp, 0); + ret = IB_MAD_RESULT_FAILURE; goto bail; } |