diff options
Diffstat (limited to 'drivers/infiniband/core/mad.c')
-rw-r--r-- | drivers/infiniband/core/mad.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 309c7f3f0219..192ee3dafb80 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1839,6 +1839,7 @@ static inline int rcv_has_same_gid(const struct ib_mad_agent_private *mad_agent_ struct ib_device *device = mad_agent_priv->agent.device; u8 port_num = mad_agent_priv->agent.port_num; u8 lmc; + bool has_grh; send_resp = ib_response_mad((struct ib_mad_hdr *)wr->send_buf.mad); rcv_resp = ib_response_mad(&rwc->recv_buf.mad->mad_hdr); @@ -1851,32 +1852,36 @@ static inline int rcv_has_same_gid(const struct ib_mad_agent_private *mad_agent_ /* Assume not equal, to avoid false positives. */ return 0; - if (!!(attr.ah_flags & IB_AH_GRH) != - !!(rwc->wc->wc_flags & IB_WC_GRH)) + has_grh = !!(rdma_ah_get_ah_flags(&attr) & IB_AH_GRH); + if (has_grh != !!(rwc->wc->wc_flags & IB_WC_GRH)) /* one has GID, other does not. Assume different */ return 0; if (!send_resp && rcv_resp) { /* is request/response. */ - if (!(attr.ah_flags & IB_AH_GRH)) { + if (!has_grh) { if (ib_get_cached_lmc(device, port_num, &lmc)) return 0; - return (!lmc || !((attr.src_path_bits ^ + return (!lmc || !((rdma_ah_get_path_bits(&attr) ^ rwc->wc->dlid_path_bits) & ((1 << lmc) - 1))); } else { + const struct ib_global_route *grh = + rdma_ah_read_grh(&attr); + if (ib_get_cached_gid(device, port_num, - attr.grh.sgid_index, &sgid, NULL)) + grh->sgid_index, &sgid, NULL)) return 0; return !memcmp(sgid.raw, rwc->recv_buf.grh->dgid.raw, 16); } } - if (!(attr.ah_flags & IB_AH_GRH)) - return attr.dlid == rwc->wc->slid; + if (!has_grh) + return rdma_ah_get_dlid(&attr) == rwc->wc->slid; else - return !memcmp(attr.grh.dgid.raw, rwc->recv_buf.grh->sgid.raw, + return !memcmp(rdma_ah_read_grh(&attr)->dgid.raw, + rwc->recv_buf.grh->sgid.raw, 16); } |