github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-11 20:13:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

net: hsr: enable promiscuous mode on interlink port with fwd offload

Browse Source 
hsr_portdev_setup() skips promiscuous mode on non-master ports when
hsr->fwd_offloaded is set. fwd_offloaded is derived only from the ring
slaves' NETIF_F_HW_HSR_FWD bit, so this also skips it for the interlink
port, which never gets forwarding offload. Without promiscuous mode,
the interlink NIC drops unicast frames addressed to hsr_dev's MAC
(e.g. SAN traffic to the RedBox), breaking RedBox whenever the ring is
HW-offloaded.

Fixes: 5055cccfc2 ("net: hsr: Provide RedBox support (HSR-SAN)")
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Fernando Fernandez Mancera <fmancera@suse.de>
Link: https://patch.msgid.link/20260908090856.2876114-1-danishanwar@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
MD Danish Anwar 2026-09-08 14:38:56 +05:30 committed by Jakub Kicinski
parent 19b4ed644d
commit a2dc179481
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
net/hsr/hsr_slave.c
View File

@ -149,9 +149,12 @@ static int hsr_portdev_setup(struct hsr_priv *hsr, struct net_device *dev,
int res;
/* Don't use promiscuous mode for offload since L2 frame forward
* happens at the offloaded hardware.
* happens at the offloaded hardware. The interlink port never
* gets forwarding offload (RedBox forwarding to/from it is done
* by this driver), so it still needs promiscuous mode to receive
* frames addressed to hsr_dev's MAC rather than its own.
*/
if (!port->hsr->fwd_offloaded) {
if (!port->hsr->fwd_offloaded || port->type == HSR_PT_INTERLINK) {
res = dev_set_promiscuity(dev, 1);
if (res)
return res;
@ -176,7 +179,7 @@ static int hsr_portdev_setup(struct hsr_priv *hsr, struct net_device *dev,
fail_rx_handler:
netdev_upper_dev_unlink(dev, hsr_dev);
fail_upper_dev_link:
if (!port->hsr->fwd_offloaded)
if (!port->hsr->fwd_offloaded || port->type == HSR_PT_INTERLINK)
dev_set_promiscuity(dev, -1);
return res;
@ -240,7 +243,7 @@ void hsr_del_port(struct hsr_port *port)
netdev_update_features(master->dev);
dev_set_mtu(master->dev, hsr_get_max_mtu(hsr));
netdev_rx_handler_unregister(port->dev);
if (!port->hsr->fwd_offloaded)
if (!port->hsr->fwd_offloaded || port->type == HSR_PT_INTERLINK)
dev_set_promiscuity(port->dev, -1);
if (port->type == HSR_PT_SLAVE_A || port->type == HSR_PT_SLAVE_B)
vlan_vids_del_by_dev(port->dev, master->dev);