[dpdk-stable] [dpdk-dev] [PATCH] net/octeontx2: fix dmac filtering

[Sunil Kumar Kori]

>-----Original Message-----
>From: dev <dev-bounces at dpdk.org> On Behalf Of Harman Kalra
>Sent: Wednesday, June 3, 2020 8:22 PM
>To: Jerin Kollanukkaran <jerinj at marvell.com>; Nithin Kumar Dabilpuram
><ndabilpuram at marvell.com>; Kiran Kumar Kokkilagadda
><kirankumark at marvell.com>
>Cc: dev at dpdk.org; Harman Kalra <hkalra at marvell.com>; stable at dpdk.org
>Subject: [dpdk-dev] [PATCH] net/octeontx2: fix dmac filtering
>
>Issue has been observed where packets are getting dropped
>at DMAC filtering if a new dmac address is added before
>starting of port.
>
>Fixes: c43adf61682f ("net/octeontx2: add unicast MAC filter")
>Cc: stable at dpdk.org
>
>Signed-off-by: Harman Kalra <hkalra at marvell.com>
>---
> drivers/net/octeontx2/otx2_ethdev.h     | 1 +
> drivers/net/octeontx2/otx2_ethdev_ops.c | 4 +++-
> drivers/net/octeontx2/otx2_mac.c        | 2 ++
> 3 files changed, 6 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/net/octeontx2/otx2_ethdev.h
>b/drivers/net/octeontx2/otx2_ethdev.h
>index 0fbf68b8e..16b0d8163 100644
>--- a/drivers/net/octeontx2/otx2_ethdev.h
>+++ b/drivers/net/octeontx2/otx2_ethdev.h
>@@ -271,6 +271,7 @@ struct otx2_eth_dev {
> 	uint8_t mac_addr[RTE_ETHER_ADDR_LEN];
> 	uint8_t mkex_pfl_name[MKEX_NAME_LEN];
> 	uint8_t max_mac_entries;
>+	bool dmac_filter_enable;
> 	uint8_t lf_tx_stats;
> 	uint8_t lf_rx_stats;
> 	uint16_t flags;
>diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c
>b/drivers/net/octeontx2/otx2_ethdev_ops.c
>index 80ac2b96e..faecf216c 100644
>--- a/drivers/net/octeontx2/otx2_ethdev_ops.c
>+++ b/drivers/net/octeontx2/otx2_ethdev_ops.c
>@@ -148,8 +148,10 @@ otx2_nix_promisc_enable(struct rte_eth_dev
>*eth_dev)
> int
> otx2_nix_promisc_disable(struct rte_eth_dev *eth_dev)
> {
>-	otx2_nix_promisc_config(eth_dev, 0);
>+	struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
>+	otx2_nix_promisc_config(eth_dev, dev->dmac_filter_enable);
> 	nix_cgx_promisc_config(eth_dev, 0);
>+	dev->dmac_filter_enable = false;
>
> 	return 0;
> }
>diff --git a/drivers/net/octeontx2/otx2_mac.c
>b/drivers/net/octeontx2/otx2_mac.c
>index 262d185e5..49a700ca1 100644
>--- a/drivers/net/octeontx2/otx2_mac.c
>+++ b/drivers/net/octeontx2/otx2_mac.c
>@@ -76,6 +76,8 @@ otx2_nix_mac_addr_add(struct rte_eth_dev *eth_dev,
>struct rte_ether_addr *addr,
>
> 	/* Enable promiscuous mode at NIX level */
> 	otx2_nix_promisc_config(eth_dev, 1);
>+	dev->dmac_filter_enable = true;
>+	eth_dev->data->promiscuous = 0;
>
> done:
> 	return rc;
>--
>2.18.0
Acked-by: Sunil Kumar Kori <skori at mavell.com>