diff options
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/330-mac80211-add-support-for-.ndo_fill_forward_path.patch | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/330-mac80211-add-support-for-.ndo_fill_forward_path.patch b/package/kernel/mac80211/patches/subsys/330-mac80211-add-support-for-.ndo_fill_forward_path.patch new file mode 100644 index 0000000000..7764edfb27 --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/330-mac80211-add-support-for-.ndo_fill_forward_path.patch @@ -0,0 +1,172 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Fri, 12 Nov 2021 12:22:23 +0100 +Subject: [PATCH] mac80211: add support for .ndo_fill_forward_path + +This allows drivers to provide a destination device + info for flow offload +Only supported in combination with 802.3 encap offload + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +Tested-by: Lorenzo Bianconi <lorenzo@kernel.org> +Link: https://lore.kernel.org/r/20211112112223.1209-1-nbd@nbd.name +Signed-off-by: Johannes Berg <johannes.berg@intel.com> +--- + +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -3937,6 +3937,8 @@ struct ieee80211_prep_tx_info { + * twt structure. + * @twt_teardown_request: Update the hw with TWT teardown request received + * from the peer. ++ * @net_fill_forward_path: Called from .ndo_fill_forward_path in order to ++ * resolve a path for hardware flow offloading + */ + struct ieee80211_ops { + void (*tx)(struct ieee80211_hw *hw, +@@ -4265,6 +4267,11 @@ struct ieee80211_ops { + struct ieee80211_twt_setup *twt); + void (*twt_teardown_request)(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, u8 flowid); ++ int (*net_fill_forward_path)(struct ieee80211_hw *hw, ++ struct ieee80211_vif *vif, ++ struct ieee80211_sta *sta, ++ struct net_device_path_ctx *ctx, ++ struct net_device_path *path); + }; + + /** +--- a/net/mac80211/driver-ops.h ++++ b/net/mac80211/driver-ops.h +@@ -1483,4 +1483,26 @@ static inline void drv_twt_teardown_requ + trace_drv_return_void(local); + } + ++static inline int drv_net_fill_forward_path(struct ieee80211_local *local, ++ struct ieee80211_sub_if_data *sdata, ++ struct ieee80211_sta *sta, ++ struct net_device_path_ctx *ctx, ++ struct net_device_path *path) ++{ ++ int ret = -EOPNOTSUPP; ++ ++ sdata = get_bss_sdata(sdata); ++ if (!check_sdata_in_driver(sdata)) ++ return -EIO; ++ ++ trace_drv_net_fill_forward_path(local, sdata, sta); ++ if (local->ops->net_fill_forward_path) ++ ret = local->ops->net_fill_forward_path(&local->hw, ++ &sdata->vif, sta, ++ ctx, path); ++ trace_drv_return_int(local, ret); ++ ++ return ret; ++} ++ + #endif /* __MAC80211_DRIVER_OPS */ +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -1465,7 +1465,7 @@ struct ieee80211_local { + }; + + static inline struct ieee80211_sub_if_data * +-IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) ++IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) + { + return netdev_priv(dev); + } +--- a/net/mac80211/iface.c ++++ b/net/mac80211/iface.c +@@ -822,6 +822,66 @@ static const struct net_device_ops ieee8 + + }; + ++#if LINUX_VERSION_IS_GEQ(5,10,0) ++static int ieee80211_netdev_fill_forward_path(struct net_device_path_ctx *ctx, ++ struct net_device_path *path) ++{ ++ struct ieee80211_sub_if_data *sdata; ++ struct ieee80211_local *local; ++ struct sta_info *sta; ++ int ret = -ENOENT; ++ ++ sdata = IEEE80211_DEV_TO_SUB_IF(ctx->dev); ++ local = sdata->local; ++ ++ if (!local->ops->net_fill_forward_path) ++ return -EOPNOTSUPP; ++ ++ rcu_read_lock(); ++ switch (sdata->vif.type) { ++ case NL80211_IFTYPE_AP_VLAN: ++ sta = rcu_dereference(sdata->u.vlan.sta); ++ if (sta) ++ break; ++ if (sdata->wdev.use_4addr) ++ goto out; ++ if (is_multicast_ether_addr(ctx->daddr)) ++ goto out; ++ sta = sta_info_get_bss(sdata, ctx->daddr); ++ break; ++ case NL80211_IFTYPE_AP: ++ if (is_multicast_ether_addr(ctx->daddr)) ++ goto out; ++ sta = sta_info_get(sdata, ctx->daddr); ++ break; ++ case NL80211_IFTYPE_STATION: ++ if (sdata->wdev.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) { ++ sta = sta_info_get(sdata, ctx->daddr); ++ if (sta && test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { ++ if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) ++ goto out; ++ ++ break; ++ } ++ } ++ ++ sta = sta_info_get(sdata, sdata->u.mgd.bssid); ++ break; ++ default: ++ goto out; ++ } ++ ++ if (!sta) ++ goto out; ++ ++ ret = drv_net_fill_forward_path(local, sdata, &sta->sta, ctx, path); ++out: ++ rcu_read_unlock(); ++ ++ return ret; ++} ++#endif ++ + static const struct net_device_ops ieee80211_dataif_8023_ops = { + #if LINUX_VERSION_IS_LESS(4,10,0) + .ndo_change_mtu = __change_mtu, +@@ -839,7 +899,9 @@ static const struct net_device_ops ieee8 + #else + .ndo_get_stats64 = bp_ieee80211_get_stats64, + #endif +- ++#if LINUX_VERSION_IS_GEQ(5,10,0) ++ .ndo_fill_forward_path = ieee80211_netdev_fill_forward_path, ++#endif + }; + + static bool ieee80211_iftype_supports_hdr_offload(enum nl80211_iftype iftype) +--- a/net/mac80211/trace.h ++++ b/net/mac80211/trace.h +@@ -2892,6 +2892,13 @@ TRACE_EVENT(drv_twt_teardown_request, + ) + ); + ++DEFINE_EVENT(sta_event, drv_net_fill_forward_path, ++ TP_PROTO(struct ieee80211_local *local, ++ struct ieee80211_sub_if_data *sdata, ++ struct ieee80211_sta *sta), ++ TP_ARGS(local, sdata, sta) ++); ++ + #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */ + + #undef TRACE_INCLUDE_PATH |