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mac80211: update the A-MSDU fast-rx patch to the latest version 

Signed-off-by: Felix Fietkau <nbd@nbd.name>
openwrt-18.06
Felix Fietkau 2018-02-28 21:14:07 +01:00
parent d59c6b53f4
commit cc19aa3e71
1 changed files with 74 additions and 25 deletions
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99
package/kernel/mac80211/patches/335-mac80211-support-A-MSDU-in-fast-rx.patch
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@ -16,7 +16,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static ieee80211_rx_result debug_noinline
-ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
+__ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
+__ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx, u8 data_offset)
{
struct net_device *dev = rx->sdata->dev;
struct sk_buff *skb = rx->skb;
@ -52,7 +52,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
check_da = NULL;
check_sa = NULL;
} else switch (rx->sdata->vif.type) {
@@ -2410,9 +2388,6 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx
@@ -2410,15 +2388,13 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx
break;
}
@ -62,7 +62,15 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
skb->dev = dev;
__skb_queue_head_init(&frame_list);
@@ -2440,6 +2415,44 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx
if (ieee80211_data_to_8023_exthdr(skb, &ethhdr,
rx->sdata->vif.addr,
- rx->sdata->vif.type))
+ rx->sdata->vif.type,
+ data_offset))
return RX_DROP_UNUSABLE;
ieee80211_amsdu_to_8023s(skb, &frame_list, dev->dev_addr,
@@ -2440,6 +2416,44 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx
return RX_QUEUED;
}
@ -101,21 +109,23 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (is_multicast_ether_addr(hdr->addr1))
+ return RX_DROP_UNUSABLE;
+
+ return __ieee80211_rx_h_amsdu(rx);
+ return __ieee80211_rx_h_amsdu(rx, 0);
+}
+
#ifdef CPTCFG_MAC80211_MESH
static ieee80211_rx_result
ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
@@ -3899,6 +3912,7 @@ static bool ieee80211_invoke_fast_rx(str
u8 sa[ETH_ALEN];
} addrs __aligned(2);
struct ieee80211_sta_rx_stats *stats = &sta->rx_stats;
+ int res;
if (fast_rx->uses_rss)
stats = this_cpu_ptr(sta->pcpu_rx_stats);
@@ -3920,10 +3934,6 @@ static bool ieee80211_invoke_fast_rx(str
@@ -3889,7 +3903,8 @@ static bool ieee80211_invoke_fast_rx(str
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct sta_info *sta = rx->sta;
int orig_len = skb->len;
- int snap_offs = ieee80211_hdrlen(hdr->frame_control);
+ int hdrlen = ieee80211_hdrlen(hdr->frame_control);
+ int snap_offs = hdrlen;
struct {
u8 snap[sizeof(rfc1042_header)];
__be16 proto;
@@ -3920,10 +3935,6 @@ static bool ieee80211_invoke_fast_rx(str
(status->flag & FAST_RX_CRYPT_FLAGS) != FAST_RX_CRYPT_FLAGS)
return false;
@ -126,14 +136,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
return false;
@@ -3951,25 +3961,31 @@ static bool ieee80211_invoke_fast_rx(str
* and strip the IV/MIC if necessary
*/
if (fast_rx->key && !(status->flag & RX_FLAG_IV_STRIPPED)) {
+ if (status->rx_flags & IEEE80211_RX_AMSDU)
+ return false;
+
/* GCMP header length is the same */
@@ -3955,21 +3966,24 @@ static bool ieee80211_invoke_fast_rx(str
snap_offs += IEEE80211_CCMP_HDR_LEN;
}
@ -171,7 +174,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
/* after this point, don't punt to the slowpath! */
@@ -3983,12 +3999,6 @@ static bool ieee80211_invoke_fast_rx(str
@@ -3983,12 +3997,6 @@ static bool ieee80211_invoke_fast_rx(str
}
/* statistics part of ieee80211_rx_h_sta_process() */
@ -184,13 +187,13 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
stats->last_signal = status->signal;
if (!fast_rx->uses_rss)
@@ -4017,6 +4027,20 @@ static bool ieee80211_invoke_fast_rx(str
@@ -4017,6 +4025,20 @@ static bool ieee80211_invoke_fast_rx(str
if (rx->key && !ieee80211_has_protected(hdr->frame_control))
goto drop;
+ if (status->rx_flags & IEEE80211_RX_AMSDU) {
+ res = __ieee80211_rx_h_amsdu(rx);
+ if (res != RX_QUEUED)
+ if (__ieee80211_rx_h_amsdu(rx, snap_offs - hdrlen) !=
+ RX_QUEUED)
+ goto drop;
+
+ return true;
@ -205,3 +208,49 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
/* 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);
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4331,10 +4331,12 @@ unsigned int ieee80211_get_mesh_hdrlen(s
* of it being pushed into the SKB
* @addr: the device MAC address
* @iftype: the virtual interface type
+ * @data_offset: offset of payload after the 802.11 header
* Return: 0 on success. Non-zero on error.
*/
int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
- const u8 *addr, enum nl80211_iftype iftype);
+ const u8 *addr, enum nl80211_iftype iftype,
+ u8 data_offset);
/**
* ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
@@ -4346,7 +4348,7 @@ int ieee80211_data_to_8023_exthdr(struct
static inline int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
enum nl80211_iftype iftype)
{
- return ieee80211_data_to_8023_exthdr(skb, NULL, addr, iftype);
+ return ieee80211_data_to_8023_exthdr(skb, NULL, addr, iftype, 0);
}
/**
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -419,7 +419,8 @@ unsigned int ieee80211_get_mesh_hdrlen(s
EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen);
int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
- const u8 *addr, enum nl80211_iftype iftype)
+ const u8 *addr, enum nl80211_iftype iftype,
+ u8 data_offset)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct {
@@ -433,7 +434,7 @@ int ieee80211_data_to_8023_exthdr(struct
if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
return -1;
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
+ hdrlen = ieee80211_hdrlen(hdr->frame_control) + data_offset;
if (skb->len < hdrlen + 8)
return -1;