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| author | Don Hiatt | 2017-11-06 15:39:22 +0100 |
|---|---|---|
| committer | Doug Ledford | 2017-11-13 21:53:57 +0100 |
| commit | b64581adba467c916590c3922f64ec6c2b59a2c3 (patch) | |
| tree | 2067ccf5bee8b251e15f91c86f9f3002aab2c21a /drivers/infiniband/hw/hfi1/ud.c | |
| parent | IB/core: Convert OPA AH to IB for Extended LIDs only (diff) | |
| download | kernel-qcow2-linux-b64581adba467c916590c3922f64ec6c2b59a2c3.tar.gz kernel-qcow2-linux-b64581adba467c916590c3922f64ec6c2b59a2c3.tar.xz kernel-qcow2-linux-b64581adba467c916590c3922f64ec6c2b59a2c3.zip | |
IB/hfi1: Mask upper 16Bits of Extended LID prior to rvt_cq_entry
Pass only the lower 16Bits of an Extended LIDs to rvt_cq_entry
to avoid triggering a WARN_ON_ONCE during conversion there.
These upper 16Bits are okay to drop as they are obtained elsewhere.
Fixes: 62ede7779904 ("Add OPA extended LID support")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/ud.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/ud.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/hfi1/ud.c b/drivers/infiniband/hw/hfi1/ud.c index 84c7dbec0c28..5260b27f5631 100644 --- a/drivers/infiniband/hw/hfi1/ud.c +++ b/drivers/infiniband/hw/hfi1/ud.c @@ -265,8 +265,8 @@ static void ud_loopback(struct rvt_qp *sqp, struct rvt_swqe *swqe) } else { wc.pkey_index = 0; } - wc.slid = ppd->lid | (rdma_ah_get_path_bits(ah_attr) & - ((1 << ppd->lmc) - 1)); + wc.slid = (ppd->lid | (rdma_ah_get_path_bits(ah_attr) & + ((1 << ppd->lmc) - 1))) & U16_MAX; /* Check for loopback when the port lid is not set */ if (wc.slid == 0 && sqp->ibqp.qp_type == IB_QPT_GSI) wc.slid = be16_to_cpu(IB_LID_PERMISSIVE); @@ -1037,7 +1037,7 @@ void hfi1_ud_rcv(struct hfi1_packet *packet) } if (slid_is_permissive) slid = be32_to_cpu(OPA_LID_PERMISSIVE); - wc.slid = slid; + wc.slid = slid & U16_MAX; wc.sl = sl_from_sc; /* |