Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Ravi Gunasekaran <> | Subject | [PATCH v2 net-next] net: hsr: Disable promiscuous mode in offload mode | Date | Wed, 14 Jun 2023 17:17:10 +0530 |
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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> --- Changes from v1: =============== * Changed the data type of "fwd_offloaded" from "unsigned int" to "bool" and moved it below "net_id" struct member as per Paolo's comment. * Collected Reviewed-by tag from v1 patch.
v1: https://lore.kernel.org/all/20230612093933.13267-1-r-gunasekaran@ti.com/
net/hsr/hsr_device.c | 5 +++++ net/hsr/hsr_main.h | 1 + net/hsr/hsr_slave.c | 15 +++++++++++---- 3 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index 5a236aae2366..306f942c3b28 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -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; diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h index 5584c80a5c79..6851e33df7d1 100644 --- a/net/hsr/hsr_main.h +++ b/net/hsr/hsr_main.h @@ -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 diff --git a/net/hsr/hsr_slave.c b/net/hsr/hsr_slave.c index b70e6bbf6021..e5742f2a2d52 100644 --- a/net/hsr/hsr_slave.c +++ b/net/hsr/hsr_slave.c @@ -131,9 +131,14 @@ static int hsr_portdev_setup(struct hsr_priv *hsr, struct net_device *dev, struct hsr_port *master; int res; - res = dev_set_promiscuity(dev, 1); - if (res) - return 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: - dev_set_promiscuity(dev, -1); + if (!port->hsr->fwd_offloaded) + dev_set_promiscuity(dev, -1); + return res; } -- 2.17.1
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