Commit 2830e314 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by David S. Miller
Browse files

net: ethernet: mtk-ppe: fix traffic offload with bridged wlan 



A typical flow offload scenario for OpenWrt users is routed traffic
received by the wan interface that is redirected to a wlan device
belonging to the lan bridge. Current implementation fails to
fill wdma offload info in mtk_flow_get_wdma_info() since odev device is
the local bridge. Fix the issue running dev_fill_forward_path routine in
mtk_flow_get_wdma_info in order to identify the wlan device.

Tested-by: default avatarPaolo Valerio <pvalerio@redhat.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 360f9f31

drivers/net/ethernet/mediatek/mtk_ppe_offload.c

+13 −17
Original line number Diff line number Diff line
@@ -88,32 +88,28 @@ mtk_flow_offload_mangle_eth(const struct flow_action_entry *act, void *eth) 
static int

mtk_flow_get_wdma_info(struct net_device *dev, const u8 *addr, struct mtk_wdma_info *info)

{

	struct net_device_path_ctx ctx = {

		.dev = dev,

	};

	struct net_device_path path = {};

	struct net_device_path_stack stack;

	struct net_device_path *path;

	int err;



	if (!ctx.dev)

	if (!dev)

		return -ENODEV;



	memcpy(ctx.daddr, addr, sizeof(ctx.daddr));



	if (!IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED))

		return -1;



	if (!dev->netdev_ops->ndo_fill_forward_path)

		return -1;



	if (dev->netdev_ops->ndo_fill_forward_path(&ctx, &path))

		return -1;

	err = dev_fill_forward_path(dev, addr, &stack);

	if (err)

		return err;



	if (path.type != DEV_PATH_MTK_WDMA)

	path = &stack.path[stack.num_paths - 1];

	if (path->type != DEV_PATH_MTK_WDMA)

		return -1;



	info->wdma_idx = path.mtk_wdma.wdma_idx;

	info->queue = path.mtk_wdma.queue;

	info->bss = path.mtk_wdma.bss;

	info->wcid = path.mtk_wdma.wcid;

	info->wdma_idx = path->mtk_wdma.wdma_idx;

	info->queue = path->mtk_wdma.queue;

	info->bss = path->mtk_wdma.bss;

	info->wcid = path->mtk_wdma.wcid;



	return 0;

}