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RDMA/bnxt_re: Do not report transparent vlan from QP1 

[ Upstream commit 2d0e60ee32 ]

QP1 Rx CQE reports transparent VLAN ID in the completion and this is used
while reporting the completion for received MAD packet. Check if the vlan
id is configured before reporting it in the work completion.

Fixes: 84511455ac ("RDMA/bnxt_re: report vlan_id and sl in qp1 recv completion")
Link: https://lore.kernel.org/r/1598292876-26529-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Selvin Xavier 2020-08-24 11:14:32 -07:00 committed by Greg Kroah-Hartman
parent aaca686713
commit 1a2d6e722b
1 changed files with 18 additions and 3 deletions
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21
drivers/infiniband/hw/bnxt_re/ib_verbs.c
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@ -2973,6 +2973,19 @@ static void bnxt_re_process_res_rawqp1_wc(struct ib_wc *wc,
wc->wc_flags |= IB_WC_GRH;
}
static bool bnxt_re_check_if_vlan_valid(struct bnxt_re_dev *rdev,
u16 vlan_id)
{
/*
* Check if the vlan is configured in the host. If not configured, it
* can be a transparent VLAN. So dont report the vlan id.
*/
if (!__vlan_find_dev_deep_rcu(rdev->netdev,
htons(ETH_P_8021Q), vlan_id))
return false;
return true;
}
static bool bnxt_re_is_vlan_pkt(struct bnxt_qplib_cqe *orig_cqe,
u16 *vid, u8 *sl)
{
@ -3041,9 +3054,11 @@ static void bnxt_re_process_res_shadow_qp_wc(struct bnxt_re_qp *qp,
wc->src_qp = orig_cqe->src_qp;
memcpy(wc->smac, orig_cqe->smac, ETH_ALEN);
if (bnxt_re_is_vlan_pkt(orig_cqe, &vlan_id, &sl)) {
wc->vlan_id = vlan_id;
wc->sl = sl;
wc->wc_flags |= IB_WC_WITH_VLAN;
if (bnxt_re_check_if_vlan_valid(rdev, vlan_id)) {
wc->vlan_id = vlan_id;
wc->sl = sl;
wc->wc_flags |= IB_WC_WITH_VLAN;
}
}
wc->port_num = 1;
wc->vendor_err = orig_cqe->status;