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From: Selvin Xavier <selvin.xavier@broadcom.com>
To: dledford@redhat.com, jgg@nvidia.com
Cc: linux-rdma@vger.kernel.org
Subject: [PATCH for-next v2 11/12] RDMA/bnxt_re: Check if the vlan is valid before reporting
Date: Wed, 15 Sep 2021 05:32:42 -0700	[thread overview]
Message-ID: <1631709163-2287-12-git-send-email-selvin.xavier@broadcom.com> (raw)
In-Reply-To: <1631709163-2287-1-git-send-email-selvin.xavier@broadcom.com>

When VF is configured with default vlan, HW strips the vlan from
the packet and driver receives it in Rx completion. VLAN needs to
be reported for UD work completion only if the vlan is configured
on the host. Add a check for valid vlan in the UD receive path.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 1cbc7e1..935dbce 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -3364,8 +3364,11 @@ static void bnxt_re_process_res_ud_wc(struct bnxt_re_qp *qp,
 				      struct ib_wc *wc,
 				      struct bnxt_qplib_cqe *cqe)
 {
+	struct bnxt_re_dev *rdev;
+	u16 vlan_id = 0;
 	u8 nw_type;
 
+	rdev = qp->rdev;
 	wc->opcode = IB_WC_RECV;
 	wc->status = __rc_to_ib_wc_status(cqe->status);
 
@@ -3377,9 +3380,12 @@ static void bnxt_re_process_res_ud_wc(struct bnxt_re_qp *qp,
 		memcpy(wc->smac, cqe->smac, ETH_ALEN);
 		wc->wc_flags |= IB_WC_WITH_SMAC;
 		if (cqe->flags & CQ_RES_UD_FLAGS_META_FORMAT_VLAN) {
-			wc->vlan_id = (cqe->cfa_meta & 0xFFF);
-			if (wc->vlan_id < 0x1000)
-				wc->wc_flags |= IB_WC_WITH_VLAN;
+			vlan_id = (cqe->cfa_meta & 0xFFF);
+		}
+		/* Mark only if vlan_id is non zero */
+		if (vlan_id && bnxt_re_check_if_vlan_valid(rdev, vlan_id)) {
+			wc->vlan_id = vlan_id;
+			wc->wc_flags |= IB_WC_WITH_VLAN;
 		}
 		nw_type = (cqe->flags & CQ_RES_UD_FLAGS_ROCE_IP_VER_MASK) >>
 			   CQ_RES_UD_FLAGS_ROCE_IP_VER_SFT;
-- 
2.5.5


  parent reply	other threads:[~2021-09-15 12:33 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-15 12:32 [PATCH for-next v2 00/12] RDMA/bnxt_re: Driver update Selvin Xavier
2021-09-15 12:32 ` [PATCH for-next v2 01/12] RDMA/bnxt_re: Add extended statistics counters Selvin Xavier
2021-09-15 12:32 ` [PATCH for-next v2 02/12] RDMA/bnxt_re: Update statistics counter name Selvin Xavier
2021-09-15 12:32 ` [PATCH for-next v2 03/12] RDMA/bnxt_re: Use separate response buffer for stat_ctx_free Selvin Xavier
2021-09-15 12:32 ` [PATCH for-next v2 04/12] RDMA/bnxt_re: Reduce the delay in polling for hwrm command completion Selvin Xavier
2021-09-15 12:32 ` [PATCH for-next v2 05/12] RDMA/bnxt_re: Support multiple page sizes Selvin Xavier
2021-09-20 13:18   ` Leon Romanovsky
2021-09-15 12:32 ` [PATCH for-next v2 06/12] RDMA/bnxt_re: Suppress unwanted error messages Selvin Xavier
2021-09-15 12:32 ` [PATCH for-next v2 07/12] RDMA/bnxt_re: Fix query SRQ failure Selvin Xavier
2021-09-20 13:19   ` Leon Romanovsky
2021-09-15 12:32 ` [PATCH for-next v2 08/12] RDMA/bnxt_re: Fix FRMR issue with single page MR allocation Selvin Xavier
2021-09-15 12:32 ` [PATCH for-next v2 09/12] RDMA/bnxt_re: Use GFP_KERNEL in non atomic context Selvin Xavier
2021-09-20 13:19   ` Leon Romanovsky
2021-09-15 12:32 ` [PATCH for-next v2 10/12] RDMA/bnxt_re: Correct FRMR size calculation Selvin Xavier
2021-09-15 12:32 ` Selvin Xavier [this message]
2021-09-15 12:32 ` [PATCH for-next v2 12/12] MAINTAINERS: Update Broadcom RDMA maintainers Selvin Xavier
2021-09-20 16:40 ` [PATCH for-next v2 00/12] RDMA/bnxt_re: Driver update Jason Gunthorpe

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