[dpdk-dev] [PATCH] bnxt: fix receive VLAN offload flags
Stephen Hemminger
stephen at networkplumber.org
Mon Mar 25 22:27:54 CET 2019
From: Stephen Hemminger <sthemmin at microsoft.com>
The bnxt driver is not correctly setting the receive VLAN offload
flags. When VLAN is offloaded the driver must set the PKT_RX_VLAN_STRIPPED
flag.
Actually, several drivers have the same bug, only most of the
Intel drivers look right. Any driver that sets vlan_tci is probably
stripping the tag, and should be setting RX_VLAN_STRIPPED.
To quote rte_mbuf.h:
/**
* The RX packet is a 802.1q VLAN packet, and the tci has been
* saved in in mbuf->vlan_tci.
* If the flag PKT_RX_VLAN_STRIPPED is also present, the VLAN
* header has been stripped from mbuf data, else it is still
* present.
*/
Fixes: 2eb53b134aae ("net/bnxt: add initial Rx code")
Signed-off-by: Stephen Hemminger <sthemmin at microsoft.com>
---
drivers/net/bnxt/bnxt_rxr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index 1bfc63d9304c..dc695e17771b 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -154,7 +154,7 @@ static void bnxt_tpa_start(struct bnxt_rx_queue *rxq,
if (tpa_start1->flags2 &
rte_cpu_to_le_32(RX_TPA_START_CMPL_FLAGS2_META_FORMAT_VLAN)) {
mbuf->vlan_tci = rte_le_to_cpu_32(tpa_start1->metadata);
- mbuf->ol_flags |= PKT_RX_VLAN;
+ mbuf->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
}
if (likely(tpa_start1->flags2 &
rte_cpu_to_le_32(RX_TPA_START_CMPL_FLAGS2_L4_CS_CALC)))
@@ -437,7 +437,7 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
(RX_PKT_CMPL_METADATA_VID_MASK |
RX_PKT_CMPL_METADATA_DE |
RX_PKT_CMPL_METADATA_PRI_MASK);
- mbuf->ol_flags |= PKT_RX_VLAN;
+ mbuf->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
}
if (likely(RX_CMP_IP_CS_OK(rxcmp1)))
--
2.17.1
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