wlcore: improved Tx scheduling algorithm

Prioritize EDCA by choosing the AC before anything else. Use the
fast/slow link bitmap in FW to improve the scheduling algorithm for
the multi-link scenario.

Set packet thresholds to determine if a given link is high or low
priority according to its speed. A slow link will be given high priority
if the amount of packets queued for it in the FW is lower than the
slow-threshold. Similarly, a fast link will be given high priority if
the number of its packets queued in FW is smaller than the high-threshold.

The improved algorithm:
1. Choose optimal AC according to FW utilization
2. Traversing the VIFs in a round-robin fashion, try to choose a high
   priority link. Links are traversed in a round-robin fashion inside a
   VIF.
3. If no high priority links are found, choose the first non-empty
   (low priority) link found in the round robin.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index d22b52f90d42..64dffafa35fb 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -210,6 +210,8 @@ static struct wlcore_conf wl12xx_conf = {
                 .tmpl_short_retry_limit      = 10,
                 .tmpl_long_retry_limit       = 10,
                 .tx_watchdog_timeout         = 5000,
+                .slow_link_thold             = 3,
+                .fast_link_thold             = 10,
         },
         .conn = {
                 .wake_up_event               = CONF_WAKE_UP_EVENT_DTIM,