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authorFelix Fietkau <nbd@openwrt.org>2008-10-11 01:33:09 +0000
committerFelix Fietkau <nbd@openwrt.org>2008-10-11 01:33:09 +0000
commitb8f710a69a8417793819b011c8202124c1c432d6 (patch)
tree46d33e0d5efd332b85fff0a07b46b23b11e52e94 /package/mac80211/patches/422-mac80211-seqno-station.patch
parent71c8fa813537012ec912415f3a1c52b27428ae86 (diff)
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mac80211: add rate control rewrite and enhance the performance of the minstrel algorithm for non-mrr configurations
SVN-Revision: 12948
Diffstat (limited to 'package/mac80211/patches/422-mac80211-seqno-station.patch')
-rw-r--r--package/mac80211/patches/422-mac80211-seqno-station.patch142
1 files changed, 142 insertions, 0 deletions
diff --git a/package/mac80211/patches/422-mac80211-seqno-station.patch b/package/mac80211/patches/422-mac80211-seqno-station.patch
new file mode 100644
index 0000000000..72fbd9cb70
--- /dev/null
+++ b/package/mac80211/patches/422-mac80211-seqno-station.patch
@@ -0,0 +1,142 @@
+Subject: mac80211: provide sequence numbers
+
+I've come to think that not providing sequence numbers for
+the normal STA mode case was a mistake, at least two drivers
+now had to implement code they wouldn't otherwise need, and
+I believe at76_usb and adm8211 might be broken.
+
+This patch makes mac80211 assign a sequence number to all
+those frames that need one except beacons. That means that
+if a driver only implements modes that do not do beaconing
+it need not worry about the sequence number.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+---
+ drivers/net/wireless/p54/p54.h | 1 -
+ drivers/net/wireless/p54/p54common.c | 18 +++++-------------
+ drivers/net/wireless/rtl8187.h | 1 -
+ drivers/net/wireless/rtl8187_dev.c | 18 ++++--------------
+ net/mac80211/ieee80211_i.h | 2 ++
+ net/mac80211/tx.c | 10 ++++++++++
+ 6 files changed, 21 insertions(+), 29 deletions(-)
+
+--- everything.orig/net/mac80211/ieee80211_i.h 2008-10-10 15:45:52.000000000 +0200
++++ everything/net/mac80211/ieee80211_i.h 2008-10-10 15:45:56.000000000 +0200
+@@ -438,6 +438,8 @@ struct ieee80211_sub_if_data {
+ struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
+ struct ieee80211_key *default_key;
+
++ u16 sequence_number;
++
+ /* BSS configuration for this interface. */
+ struct ieee80211_bss_conf bss_conf;
+
+--- everything.orig/net/mac80211/tx.c 2008-10-10 15:45:48.000000000 +0200
++++ everything/net/mac80211/tx.c 2008-10-10 15:45:56.000000000 +0200
+@@ -602,8 +602,18 @@ ieee80211_tx_h_sequence(struct ieee80211
+ if (ieee80211_hdrlen(hdr->frame_control) < 24)
+ return TX_CONTINUE;
+
++ /*
++ * Anything but QoS data that has a sequence number field
++ * (is long enough) gets a sequence number from the global
++ * counter.
++ */
+ if (!ieee80211_is_data_qos(hdr->frame_control)) {
++ /* driver should assign sequence number */
+ info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
++ /* for pure STA mode without beacons, we can do it */
++ hdr->seq_ctrl = cpu_to_le16(tx->sdata->sequence_number);
++ tx->sdata->sequence_number += 0x10;
++ tx->sdata->sequence_number &= IEEE80211_SCTL_SEQ;
+ return TX_CONTINUE;
+ }
+
+--- everything.orig/drivers/net/wireless/p54/p54.h 2008-10-10 15:45:49.000000000 +0200
++++ everything/drivers/net/wireless/p54/p54.h 2008-10-10 15:45:56.000000000 +0200
+@@ -67,7 +67,6 @@ struct p54_common {
+ int (*open)(struct ieee80211_hw *dev);
+ void (*stop)(struct ieee80211_hw *dev);
+ int mode;
+- u16 seqno;
+ u16 rx_mtu;
+ u8 headroom;
+ u8 tailroom;
+--- everything.orig/drivers/net/wireless/p54/p54common.c 2008-10-10 15:45:49.000000000 +0200
++++ everything/drivers/net/wireless/p54/p54common.c 2008-10-10 15:45:56.000000000 +0200
+@@ -865,19 +865,6 @@ static int p54_tx(struct ieee80211_hw *d
+ if (padding)
+ txhdr->align[0] = padding;
+
+- /* FIXME: The sequence that follows is needed for this driver to
+- * work with mac80211 since "mac80211: fix TX sequence numbers".
+- * As with the temporary code in rt2x00, changes will be needed
+- * to get proper sequence numbers on beacons. In addition, this
+- * patch places the sequence number in the hardware state, which
+- * limits us to a single virtual state.
+- */
+- if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+- if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+- priv->seqno += 0x10;
+- ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+- ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
+- }
+ /* modifies skb->cb and with it info, so must be last! */
+ p54_assign_address(dev, skb, hdr, skb->len);
+
+@@ -1391,6 +1378,11 @@ struct ieee80211_hw *p54_init_common(siz
+ IEEE80211_HW_SIGNAL_DBM |
+ IEEE80211_HW_NOISE_DBM;
+
++ /*
++ * XXX: when this driver gets support for any mode that
++ * requires beacons (AP, MESH, IBSS) then it must
++ * implement IEEE80211_TX_CTL_ASSIGN_SEQ.
++ */
+ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+
+ dev->channel_change_time = 1000; /* TODO: find actual value */
+--- everything.orig/drivers/net/wireless/rtl8187_dev.c 2008-10-10 15:45:49.000000000 +0200
++++ everything/drivers/net/wireless/rtl8187_dev.c 2008-10-10 15:45:56.000000000 +0200
+@@ -238,20 +238,6 @@ static int rtl8187_tx(struct ieee80211_h
+ ep = epmap[skb_get_queue_mapping(skb)];
+ }
+
+- /* FIXME: The sequence that follows is needed for this driver to
+- * work with mac80211 since "mac80211: fix TX sequence numbers".
+- * As with the temporary code in rt2x00, changes will be needed
+- * to get proper sequence numbers on beacons. In addition, this
+- * patch places the sequence number in the hardware state, which
+- * limits us to a single virtual state.
+- */
+- if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+- if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+- priv->seqno += 0x10;
+- ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+- ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
+- }
+-
+ info->driver_data[0] = dev;
+ info->driver_data[1] = urb;
+
+@@ -1185,6 +1171,10 @@ static int __devinit rtl8187_probe(struc
+ dev->max_signal = 65;
+ }
+
++ /*
++ * XXX: Once this driver supports anything that requires
++ * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ.
++ */
+ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+
+ if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b)
+--- everything.orig/drivers/net/wireless/rtl8187.h 2008-10-10 15:45:49.000000000 +0200
++++ everything/drivers/net/wireless/rtl8187.h 2008-10-10 15:45:56.000000000 +0200
+@@ -100,7 +100,6 @@ struct rtl8187_priv {
+ struct usb_device *udev;
+ u32 rx_conf;
+ u16 txpwr_base;
+- u16 seqno;
+ u8 asic_rev;
+ u8 is_rtl8187b;
+ enum {