openwrt/package/kernel/mac80211/patches/subsys/326-wifi-mac80211-add-mesh-fast-rx-support.patch
Hauke Mehrtens 323e249ce8 mac80211: Update to version 6.1.97-1
This updates mac80211 to version 6.1.97-1. This code is based on Linux
6.1.97 and contains all fixes included in the upstream wireless
subsystem from that kernel version. This includes many bugfixes and also
some security fixes.

The removed patches are already integrated in upstream Linux 6.1.97 or
in backports.

The following patches were integrated in upstream Linux:
   ath11k/0013-wifi-ath11k-synchronize-ath11k_mac_he_gi_to_nl80211_.patch
   ath11k/0035-wifi-ath11k-Use-platform_get_irq-to-get-the-interrup.patch
   ath11k/0036-wifi-ath11k-fix-SAC-bug-on-peer-addition-with-sta-ba.patch
   ath11k/0047-wifi-ath11k-fix-deinitialization-of-firmware-resourc.patch
   ath11k/0053-wifi-ath11k-fix-writing-to-unintended-memory-region.patch
   ath11k/0060-wifi-ath11k-Ignore-frags-from-uninitialized-peer-in-.patch
   ath11k/0065-wifi-ath11k-fix-tx-status-reporting-in-encap-offload.patch
   ath11k/0067-wifi-ath11k-Fix-SKB-corruption-in-REO-destination-ri.patch
   ath11k/0069-wifi-ath11k-fix-registration-of-6Ghz-only-phy-withou.patch
   ath11k/0080-wifi-ath11k-add-support-default-regdb-while-searchin.patch
   ath11k/0085-wifi-ath11k-fix-memory-leak-in-WMI-firmware-stats.patch
   ath11k/0086-wifi-ath11k-Add-missing-check-for-ioremap.patch
   ath11k/0096-wifi-ath11k-fix-boot-failure-with-one-MSI-vector.patch
   subsys/337-wifi-mac80211-fix-race-condition-on-enabling-fast-xm.patch

The following patches were integrated in upstream backports:
   ath11k/901-wifi-ath11k-pci-fix-compilation-in-5.16-and-older.patch
   build/080-resv_start_op.patch
   build/110-backport_napi_build_skb.patch

The following files are missing in backports, we do not have to remove
them any more. Some were already missing before some were removed in
this update:
   include/linux/cordic.h
   include/linux/crc8.h
   include/linux/eeprom_93cx6.h
   include/linux/wl12xx.h
   include/net/ieee80211.h
   backport-include/linux/bcm47xx_nvram.h
   include/linux/ath9k_platform.h
   include/net/bluetooth/

backports ships a dummy Mediatek wed header for older kernel versions.
We backported the feature in our kernel, remove the dummy header:
   backport-include/linux/soc/mediatek/mtk_wed.h

Remove header files for subsystems used form the mainline kernel:
   include/trace/events/qrtr.h
   include/net/rsi_91x.h
   backport-include/linux/platform_data/brcmnand.h

Link: https://github.com/openwrt/openwrt/pull/15827
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-07-07 18:30:37 +02:00

78 lines
2.5 KiB
Diff

From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 2 Mar 2023 13:52:29 +0100
Subject: [PATCH] wifi: mac80211: add mesh fast-rx support
This helps bring down rx CPU usage by avoiding calls to the rx handlers in
the slow path. Supports forwarding and local rx, including A-MSDU.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4580,6 +4580,12 @@ void ieee80211_check_fast_rx(struct sta_
}
break;
+ case NL80211_IFTYPE_MESH_POINT:
+ fastrx.expected_ds_bits = cpu_to_le16(IEEE80211_FCTL_FROMDS |
+ IEEE80211_FCTL_TODS);
+ fastrx.da_offs = offsetof(struct ieee80211_hdr, addr3);
+ fastrx.sa_offs = offsetof(struct ieee80211_hdr, addr4);
+ break;
default:
goto clear;
}
@@ -4788,6 +4794,7 @@ static bool ieee80211_invoke_fast_rx(str
struct sk_buff *skb = rx->skb;
struct ieee80211_hdr *hdr = (void *)skb->data;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ static ieee80211_rx_result res;
int orig_len = skb->len;
int hdrlen = ieee80211_hdrlen(hdr->frame_control);
int snap_offs = hdrlen;
@@ -4849,7 +4856,8 @@ static bool ieee80211_invoke_fast_rx(str
snap_offs += IEEE80211_CCMP_HDR_LEN;
}
- if (!(status->rx_flags & IEEE80211_RX_AMSDU)) {
+ if (!ieee80211_vif_is_mesh(&rx->sdata->vif) &&
+ !(status->rx_flags & IEEE80211_RX_AMSDU)) {
if (!pskb_may_pull(skb, snap_offs + sizeof(*payload)))
return false;
@@ -4888,13 +4896,29 @@ static bool ieee80211_invoke_fast_rx(str
/* do the header conversion - first grab the addresses */
ether_addr_copy(addrs.da, skb->data + fast_rx->da_offs);
ether_addr_copy(addrs.sa, skb->data + fast_rx->sa_offs);
- skb_postpull_rcsum(skb, skb->data + snap_offs,
- sizeof(rfc1042_header) + 2);
- /* remove the SNAP but leave the ethertype */
- skb_pull(skb, snap_offs + sizeof(rfc1042_header));
+ if (ieee80211_vif_is_mesh(&rx->sdata->vif)) {
+ skb_pull(skb, snap_offs - 2);
+ put_unaligned_be16(skb->len - 2, skb->data);
+ } else {
+ skb_postpull_rcsum(skb, skb->data + snap_offs,
+ sizeof(rfc1042_header) + 2);
+
+ /* remove the SNAP but leave the ethertype */
+ skb_pull(skb, snap_offs + sizeof(rfc1042_header));
+ }
/* push the addresses in front */
memcpy(skb_push(skb, sizeof(addrs)), &addrs, sizeof(addrs));
+ res = ieee80211_rx_mesh_data(rx->sdata, rx->sta, rx->skb);
+ switch (res) {
+ case RX_QUEUED:
+ return true;
+ case RX_CONTINUE:
+ break;
+ default:
+ goto drop;
+ }
+
ieee80211_rx_8023(rx, fast_rx, orig_len);
return true;