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net/bnx2x: handle guest VLAN for SR-IOV

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In case of bnx2xvf pmd, tx packets can support vland id in 2 ways:
1. Setting the mbuf ol_flags=PKT_TX_VLAN_PKT and passing the
vlanid in mbuf->vlan_tci.
2. The tx packet itself has the vlan id included in the packet.
The first case is working as expected but the second case where
the vlan id is included in thetx packets itself was found not
working as expected. To handle that we need to properly set the
start_bd bitfield and the vlan_or_ethertype instead of setting it
to just the ethertype in case of VF.

Signed-off-by: Souvik Dey <sodey@rbbn.com>
Acked-by: Rasesh Mody <rmody@marvell.com>
This commit is contained in:
Souvik Dey 2020-04-13 16:09:30 -07:00 committed by Ferruh Yigit
parent 0d2870c4f7
commit 4ccbda1596
1 changed files with 18 additions and 2 deletions
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20
drivers/net/bnx2x/bnx2x.c
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@ -2216,11 +2216,27 @@ int bnx2x_tx_encap(struct bnx2x_tx_queue *txq, struct rte_mbuf *m0)
tx_start_bd->vlan_or_ethertype =
rte_cpu_to_le_16(pkt_prod);
else {
/* when transmitting in a vf, start bd
* must hold the ethertype for fw to enforce it
*/
struct rte_ether_hdr *eh =
rte_pktmbuf_mtod(m0, struct rte_ether_hdr *);
tx_start_bd->vlan_or_ethertype =
rte_cpu_to_le_16(rte_be_to_cpu_16(eh->ether_type));
/* Still need to consider inband vlan for enforced */
if (eh->ether_type ==
rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN)) {
struct rte_vlan_hdr *vh =
(struct rte_vlan_hdr *)(eh + 1);
tx_start_bd->bd_flags.as_bitfield |=
(X_ETH_INBAND_VLAN <<
ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT);
tx_start_bd->vlan_or_ethertype =
rte_cpu_to_le_16(ntohs(vh->vlan_tci));
} else {
tx_start_bd->vlan_or_ethertype =
(rte_cpu_to_le_16
(rte_be_to_cpu_16(eh->ether_type)));
}
}
}