| Message ID | 20241028085242.710250-1-wei.fang@nxp.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [net] net: enetc: set MAC address to the VF net_device | expand |
> -----Original Message----- > From: Wei Fang > Sent: 2024年10月28日 17:08 > To: davem@davemloft.net; edumazet@google.com; kuba@kernel.org; > pabeni@redhat.com; andrew+netdev@lunn.ch; Claudiu Manoil > <claudiu.manoil@nxp.com>; Vladimir Oltean <vladimir.oltean@nxp.com> > Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; imx@lists.linux.dev > Subject: [PATCH net] net: enetc: set MAC address to the VF net_device > > 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" commandand the IP address cannot be obtained . ^^^^ Sorry, there is missing a space. I'll fix it in v2. > > 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> > --- > drivers/net/ethernet/freescale/enetc/enetc_vf.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > 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, > -- > 2.34.1
On Mon, Oct 28, 2024 at 04:52:42PM +0800, Wei Fang wrote: > 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" commandand 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>
> -----Original Message----- > From: Wei Fang <wei.fang@nxp.com> > Sent: Monday, October 28, 2024 10:53 AM [...] > Subject: [PATCH net] net: enetc: set MAC address to the VF net_device > > 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" commandand 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: Claudiu Manoil <claudiu.manoil@nxp.com>
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,
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" commandand 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> --- drivers/net/ethernet/freescale/enetc/enetc_vf.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)