ath9k: Assign seq# when mac80211 requests this
Use TX control flag IEEE80211_TX_CTL_ASSIGN_SEQ as a request to update
the seq# for the frames. This will likely require some further cleanup
to get seq# correctly for Beacons vs. other frames and also potentially
for multiple BSSes. Anyway, this is better than ending up sending out
most frames with seq# 0.
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c
index 8abcd3e..a020f9a 100644
--- a/drivers/net/wireless/ath9k/beacon.c
+++ b/drivers/net/wireless/ath9k/beacon.c
@@ -209,6 +209,7 @@
int is_beacon_dtim = 0;
struct ath_txq *cabq;
struct ath_txq *mcastq;
+ struct ieee80211_tx_info *info;
avp = sc->sc_vaps[if_id];
mcastq = &avp->av_mcastq;
@@ -233,6 +234,17 @@
bf->bf_mpdu = skb;
if (skb == NULL)
return NULL;
+ info = IEEE80211_SKB_CB(skb);
+ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+ /*
+ * TODO: make sure the seq# gets assigned properly (vs. other
+ * TX frames)
+ */
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ sc->seq_no += 0x10;
+ hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+ hdr->seq_ctrl |= cpu_to_le16(sc->seq_no);
+ }
bf->bf_buf_addr = bf->bf_dmacontext =
pci_map_single(sc->pdev, skb->data,
skb_end_pointer(skb) - skb->head,
diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index bf73194..c242942 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -965,6 +965,7 @@
u32 sc_txqsetup;
u32 sc_txintrperiod; /* tx interrupt batching */
int sc_haltype2q[ATH9K_WME_AC_VO+1]; /* HAL WME AC -> h/w qnum */
+ u16 seq_no; /* TX sequence number */
/* Beacon */
struct ath9k_tx_queue_info sc_beacon_qi;
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 4b61666..8fbde89 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -368,6 +368,20 @@
{
struct ath_softc *sc = hw->priv;
int hdrlen, padsize;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+ /*
+ * As a temporary workaround, assign seq# here; this will likely need
+ * to be cleaned up to work better with Beacon transmission and virtual
+ * BSSes.
+ */
+ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+ sc->seq_no += 0x10;
+ hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+ hdr->seq_ctrl |= cpu_to_le16(sc->seq_no);
+ }
/* Add the padding after the header if this is not already done */
hdrlen = ieee80211_get_hdrlen_from_skb(skb);