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net: hsr: Disable promiscuous mode in offload mode 

When port-to-port forwarding for interfaces in HSR node is enabled,
disable promiscuous mode since L2 frame forward happens at the
offloaded hardware.

Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230614114710.31400-1-r-gunasekaran@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ravi Gunasekaran 2023-06-14 17:17:10 +05:30 committed by Jakub Kicinski
parent ff9b63c80b
commit e748d0fd66
3 changed files with 17 additions and 4 deletions
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5
net/hsr/hsr_device.c
View File

@ -531,6 +531,11 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
if (res)
goto err_add_master;
/* HSR forwarding offload supported in lower device? */
if ((slave[0]->features & NETIF_F_HW_HSR_FWD) &&
(slave[1]->features & NETIF_F_HW_HSR_FWD))
hsr->fwd_offloaded = true;
res = register_netdevice(hsr_dev);
if (res)
goto err_unregister;

1
net/hsr/hsr_main.h
View File

@ -208,6 +208,7 @@ struct hsr_priv {
u8 net_id; /* for PRP, it occupies most significant 3 bits
* of lan_id
*/
bool fwd_offloaded; /* Forwarding offloaded to HW */
unsigned char sup_multicast_addr[ETH_ALEN] __aligned(sizeof(u16));
/* Align to u16 boundary to avoid unaligned access
* in ether_addr_equal

7
net/hsr/hsr_slave.c
View File

@ -131,9 +131,14 @@ static int hsr_portdev_setup(struct hsr_priv *hsr, struct net_device *dev,
struct hsr_port *master;
int res;
/* Don't use promiscuous mode for offload since L2 frame forward
* happens at the offloaded hardware.
*/
if (!port->hsr->fwd_offloaded) {
res = dev_set_promiscuity(dev, 1);
if (res)
return res;
}
master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
hsr_dev = master->dev;
@ -152,7 +157,9 @@ 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)
dev_set_promiscuity(dev, -1);
return res;
}