octeontx2-pf: Don't install VLAN offload rule if netdev is down

[ Upstream commit 05209e3570e452cdaa644e8398a8875b6a91051d ]

Whenever user changes interface MAC address both default DMAC based
MCAM rule and VLAN offload (for strip) rules are updated with new
MAC address. To update or install VLAN offload rule PF driver needs
interface's receive channel info, which is retrieved from admin
function at the time of NIXLF initialization.

If user changes MAC address before interface is UP, VLAN offload rule
installation will fail and throw error as receive channel is not valid.
To avoid this, skip VLAN offload rule installation if netdev is not UP.
This rule will anyway be reinslatted as part of open() call.

Fixes: fd9d7859db6c ("octeontx2-pf: Implement ingress/egress VLAN offload")
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 16ba457197a2b28dac30b1203234cfab4029625f..871404f3b8d384cbb305ada98da6692872ac682c 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -208,7 +208,8 @@ int otx2_set_mac_address(struct net_device *netdev, void *p)
        if (!otx2_hw_set_mac_addr(pfvf, addr->sa_data)) {
                memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
                /* update dmac field in vlan offload rule */
-               if (pfvf->flags & OTX2_FLAG_RX_VLAN_SUPPORT)
+               if (netif_running(netdev) &&
+                   pfvf->flags & OTX2_FLAG_RX_VLAN_SUPPORT)
                        otx2_install_rxvlan_offload_flow(pfvf);
        } else {
                return -EPERM;