wl12xx: AP-mode - count free FW TX blocks per link
Count the number of FW TX blocks allocated per link. We add blocks to a
link counter when allocated for a TX descriptor. We remove blocks
according to counters in fw_status indicating the number of freed blocks
in FW. These counters are polled after each IRQ.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 92f8220..5772a33 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -574,6 +574,17 @@
if (total)
clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
+ if (wl->bss_type == BSS_TYPE_AP_BSS) {
+ for (i = 0; i < AP_MAX_LINKS; i++) {
+ u8 cnt = status->tx_lnk_free_blks[i] -
+ wl->links[i].prev_freed_blks;
+
+ wl->links[i].prev_freed_blks =
+ status->tx_lnk_free_blks[i];
+ wl->links[i].allocated_blks -= cnt;
+ }
+ }
+
/* update the host-chipset time offset */
getnstimeofday(&ts);
wl->time_offset = (timespec_to_ns(&ts) >> 10) -