IB/hfi1: Consider LMC in 16B/bypass ingress packet check

Ingress packet check for 16B/bypass packets should consider the port
LMC. Not doing this will result in packets sent to the LMC LIDs getting
dropped. The check is implemented in HW for 9B packets.

Reviewed-by: Mike Ruhl <[email protected]>
Signed-off-by: Ashutosh Dixit <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: ashutoshx

drivers/infiniband/hw/hfi1/driver.c

@@ -1426,7 +1426,7 @@ static int hfi1_bypass_ingress_pkt_check(struct hfi1_packet *packet)
 	if ((!(hfi1_is_16B_mcast(packet->dlid))) &&
 	    (packet->dlid !=
 		opa_get_lid(be32_to_cpu(OPA_LID_PERMISSIVE), 16B))) {
-		if (packet->dlid != ppd->lid)
+		if ((packet->dlid & ~((1 << ppd->lmc) - 1)) != ppd->lid)
 			return -EINVAL;
 	}