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IB/hfi1: Mask the path bits with the LMC for 16B RC Acks

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16B packets require that the path bits are masked with the LMC.
This mask is done correctly in all 16B header creation but was
left out for the RC Acknowledge.

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: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Don Hiatt 2017-11-14 04:34:16 -08:00 committed by Jason Gunthorpe
parent ae64f9bd1d
commit 3cafad43e2
1 changed files with 4 additions and 4 deletions
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8
drivers/infiniband/hw/hfi1/rc.c
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@ -843,11 +843,11 @@ static inline void hfi1_make_rc_ack_16B(struct rvt_qp *qp,
/* Convert dwords to flits */
len = (*hwords + *nwords) >> 1;
hfi1_make_16b_hdr(hdr,
ppd->lid | rdma_ah_get_path_bits(&qp->remote_ah_attr),
hfi1_make_16b_hdr(hdr, ppd->lid |
(rdma_ah_get_path_bits(&qp->remote_ah_attr) &
((1 << ppd->lmc) - 1)),
opa_get_lid(rdma_ah_get_dlid(&qp->remote_ah_attr),
16B),
len, pkey, becn, 0, l4, sc5);
16B), len, pkey, becn, 0, l4, sc5);
bth0 = pkey | (OP(ACKNOWLEDGE) << 24);
bth0 |= extra_bytes << 20;