carl9170 firmware: fix BAR->BA delivery

[carl9170fw.git] / carlfw / src / wlan.c

diff --git a/carlfw/src/wlan.c b/carlfw/src/wlan.c
index cb2dc75c0ef43805b86989ec3a9798cbaee764fe..94ed62250d806ed262cdc86c316d2df4370fa35c 100644 (file)
--- a/carlfw/src/wlan.c
+++ b/carlfw/src/wlan.c
@@ -305,7 +305,7 @@ static void wlan_assign_seq(struct ieee80211_hdr *hdr, unsigned int vif)
        hdr->seq_ctrl &= cpu_to_le16(~IEEE80211_SCTL_SEQ);
        hdr->seq_ctrl |= cpu_to_le16(fw.wlan.sequence[vif]);
 
-       if (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)))
+       if (ieee80211_is_first_frag(hdr->seq_ctrl))
                fw.wlan.sequence[vif] += 0x10;
 }
 
@@ -351,6 +351,12 @@ static bool wlan_tx_status(struct dma_queue *queue,
                /* reset retry indicator flags */
                desc->ctrl &= ~(AR9170_CTRL_TXFAIL | AR9170_CTRL_BAFAIL);
 
+               /*
+                * Note: wlan_tx_consume_retry will override the old
+                * phy [CCK,OFDM, HT, BW20/40, MCS...] and mac vectors
+                * [AMPDU,RTS/CTS,...] therefore be careful when they
+                * are used.
+                */
                if (wlan_tx_consume_retry(super)) {
                        /*
                         * retry for simple and aggregated 802.11 frames.
@@ -520,7 +526,7 @@ static void wlan_send_buffered_ba(void)
        struct ieee80211_ba *ba = (struct ieee80211_ba *) &baf->f.ba;
        struct carl9170_bar_ctx *ctx;
 
-       if (likely(fw.wlan.ba_head_idx == fw.wlan.ba_tail_idx))
+       if (likely(!fw.wlan.queued_ba))
                return;
 
        /* there's no point to continue when the ba_desc is not available. */
@@ -530,6 +536,7 @@ static void wlan_send_buffered_ba(void)
        ctx = &fw.wlan.ba_cache[fw.wlan.ba_head_idx];
        fw.wlan.ba_head_idx++;
        fw.wlan.ba_head_idx %= CONFIG_CARL9170FW_BACK_REQS_NUM;
+       fw.wlan.queued_ba--;
 
        baf->s.len = sizeof(struct carl9170_tx_superdesc) +
                     sizeof(struct ar9170_tx_hwdesc) +
@@ -576,6 +583,8 @@ static struct carl9170_bar_ctx *wlan_get_bar_cache_buffer(void)
        tmp = &fw.wlan.ba_cache[fw.wlan.ba_tail_idx];
        fw.wlan.ba_tail_idx++;
        fw.wlan.ba_tail_idx %= CONFIG_CARL9170FW_BACK_REQS_NUM;
+       if (fw.wlan.queued_ba < CONFIG_CARL9170FW_BACK_REQS_NUM)
+               fw.wlan.queued_ba++;
 
        return tmp;
 }