diff mbox series

[v2,net] net: enetc: set MAC address to the VF net_device

Message ID 20241029090406.841836-1-wei.fang@nxp.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series [v2,net] net: enetc: set MAC address to the VF net_device | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 5 this patch: 5
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 7 of 8 maintainers
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 4 this patch: 4
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 19 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-10-31--09-00 (tests: 779)

Commit Message

Wei Fang Oct. 29, 2024, 9:04 a.m. UTC
The MAC address of VF can be configured through the mailbox mechanism of
ENETC, but the previous implementation forgot to set the MAC address in
net_device, resulting in the SMAC of the sent frames still being the old
MAC address. Since the MAC address in the hardware has been changed, Rx
cannot receive frames with the DMAC address as the new MAC address. The
most obvious phenomenon is that after changing the MAC address, we can
see that the MAC address of eno0vf0 has not changed through the "ifconfig
eno0vf0" command and the IP address cannot be obtained .

root@ls1028ardb:~# ifconfig eno0vf0 down
root@ls1028ardb:~# ifconfig eno0vf0 hw ether 00:04:9f:3a:4d:56 up
root@ls1028ardb:~# ifconfig eno0vf0
eno0vf0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 66:36:2c:3b:87:76  txqueuelen 1000  (Ethernet)
        RX packets 794  bytes 69239 (69.2 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 11  bytes 2226 (2.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Fixes: beb74ac878c8 ("enetc: Add vf to pf messaging support")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
---
v1 Link: https://lore.kernel.org/imx/20241028085242.710250-1-wei.fang@nxp.com/
v2 changes:
1. Fix a typo in the commit message
2. Add Reviewed-by tags
---
 drivers/net/ethernet/freescale/enetc/enetc_vf.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_vf.c b/drivers/net/ethernet/freescale/enetc/enetc_vf.c
index dfcaac302e24..b15db70769e5 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_vf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_vf.c
@@ -78,11 +78,18 @@  static int enetc_vf_set_mac_addr(struct net_device *ndev, void *addr)
 {
 	struct enetc_ndev_priv *priv = netdev_priv(ndev);
 	struct sockaddr *saddr = addr;
+	int err;
 
 	if (!is_valid_ether_addr(saddr->sa_data))
 		return -EADDRNOTAVAIL;
 
-	return enetc_msg_vsi_set_primary_mac_addr(priv, saddr);
+	err = enetc_msg_vsi_set_primary_mac_addr(priv, saddr);
+	if (err)
+		return err;
+
+	eth_hw_addr_set(ndev, saddr->sa_data);
+
+	return 0;
 }
 
 static int enetc_vf_set_features(struct net_device *ndev,