IB/mlx: Set slid to zero in Ethernet completion struct

IB spec says that a lid should be ignored when link layer is Ethernet,
for example when building or parsing a CM request message (CA17-34).
However, since ib_lid_be16() and ib_lid_cpu16()  validates the slid,
not only when link layer is IB, we set the slid to zero to prevent
false warnings in the kernel log.

Fixes: 62ede7779904 ("Add OPA extended LID support")
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 9a566ee..82adc0d 100644 (file)
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -601,6 +601,7 @@ static void use_tunnel_data(struct mlx4_ib_qp *qp, struct mlx4_ib_cq *cq, struct
        wc->dlid_path_bits = 0;
 
        if (is_eth) {
+               wc->slid = 0;
                wc->vlan_id = be16_to_cpu(hdr->tun.sl_vid);
                memcpy(&(wc->smac[0]), (char *)&hdr->tun.mac_31_0, 4);
                memcpy(&(wc->smac[4]), (char *)&hdr->tun.slid_mac_47_32, 2);
@@ -851,7 +852,6 @@ repoll:
                        }
                }
 
-               wc->slid           = be16_to_cpu(cqe->rlid);
                g_mlpath_rqpn      = be32_to_cpu(cqe->g_mlpath_rqpn);
                wc->src_qp         = g_mlpath_rqpn & 0xffffff;
                wc->dlid_path_bits = (g_mlpath_rqpn >> 24) & 0x7f;
@@ -860,6 +860,7 @@ repoll:
                wc->wc_flags      |= mlx4_ib_ipoib_csum_ok(cqe->status,
                                        cqe->checksum) ? IB_WC_IP_CSUM_OK : 0;
                if (is_eth) {
+                       wc->slid = 0;
                        wc->sl  = be16_to_cpu(cqe->sl_vid) >> 13;
                        if (be32_to_cpu(cqe->vlan_my_qpn) &
                                        MLX4_CQE_CVLAN_PRESENT_MASK) {
@@ -871,6 +872,7 @@ repoll:
                        memcpy(wc->smac, cqe->smac, ETH_ALEN);
                        wc->wc_flags |= (IB_WC_WITH_VLAN | IB_WC_WITH_SMAC);
                } else {
+                       wc->slid = be16_to_cpu(cqe->rlid);
                        wc->sl  = be16_to_cpu(cqe->sl_vid) >> 12;
                        wc->vlan_id = 0xffff;
                }

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 5b974fb..b5cfdaa 100644 (file)
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -226,7 +226,6 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
                wc->ex.invalidate_rkey = be32_to_cpu(cqe->imm_inval_pkey);
                break;
        }
-       wc->slid           = be16_to_cpu(cqe->slid);
        wc->src_qp         = be32_to_cpu(cqe->flags_rqpn) & 0xffffff;
        wc->dlid_path_bits = cqe->ml_path;
        g = (be32_to_cpu(cqe->flags_rqpn) >> 28) & 3;
@@ -241,10 +240,12 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
        }
 
        if (ll != IB_LINK_LAYER_ETHERNET) {
+               wc->slid = be16_to_cpu(cqe->slid);
                wc->sl = (be32_to_cpu(cqe->flags_rqpn) >> 24) & 0xf;
                return;
        }
 
+       wc->slid = 0;
        vlan_present = cqe->l4_l3_hdr_type & 0x1;
        roce_packet_type   = (be32_to_cpu(cqe->flags_rqpn) >> 24) & 0x3;
        if (vlan_present) {