[dpdk-stable] [PATCH v2 19/20] net/bnxt: fix multicast filter programming

[Ajit Khaparde]

From: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>

Fixed multicast filter programming and allmulti programming.
Fixed to skip programming multicast macs if the user requests
allmulti mode.

Also removed a comment in bnxt_hwrm_cfa_l2_set_rx_mask() which is
no longer valid now.

Fixes: d69851df12b2 ("net/bnxt: support multicast filter and set MAC addr")
Cc: stable at dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c |  4 ++++
 drivers/net/bnxt/bnxt_hwrm.c   | 11 ++++-------
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index e305ad4163..02eacf7965 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -2053,6 +2053,10 @@ bnxt_dev_set_mc_addr_list_op(struct rte_eth_dev *eth_dev,
 	}
 
 	vnic->mc_addr_cnt = i;
+	if (vnic->mc_addr_cnt)
+		vnic->flags |= BNXT_VNIC_INFO_MCAST;
+	else
+		vnic->flags &= ~BNXT_VNIC_INFO_MCAST;
 
 allmulti:
 	return bnxt_hwrm_cfa_l2_set_rx_mask(bp, vnic, 0, NULL);
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 2a7e0d6d15..011cd05ae0 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -295,20 +295,17 @@ int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp,
 	HWRM_PREP(req, CFA_L2_SET_RX_MASK, BNXT_USE_CHIMP_MB);
 	req.vnic_id = rte_cpu_to_le_16(vnic->fw_vnic_id);
 
-	/* FIXME add multicast flag, when multicast adding options is supported
-	 * by ethtool.
-	 */
 	if (vnic->flags & BNXT_VNIC_INFO_BCAST)
 		mask |= HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_BCAST;
 	if (vnic->flags & BNXT_VNIC_INFO_UNTAGGED)
 		mask |= HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_VLAN_NONVLAN;
+
 	if (vnic->flags & BNXT_VNIC_INFO_PROMISC)
 		mask |= HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_PROMISCUOUS;
-	if (vnic->flags & BNXT_VNIC_INFO_ALLMULTI)
+
+	if (vnic->flags & BNXT_VNIC_INFO_ALLMULTI) {
 		mask |= HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_ALL_MCAST;
-	if (vnic->flags & BNXT_VNIC_INFO_MCAST)
-		mask |= HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_MCAST;
-	if (vnic->mc_addr_cnt) {
+	} else if (vnic->flags & BNXT_VNIC_INFO_MCAST) {
 		mask |= HWRM_CFA_L2_SET_RX_MASK_INPUT_MASK_MCAST;
 		req.num_mc_entries = rte_cpu_to_le_32(vnic->mc_addr_cnt);
 		req.mc_tbl_addr = rte_cpu_to_le_64(vnic->mc_list_dma_addr);
-- 
2.20.1 (Apple Git-117)