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wlcore/wl18xx: change priority calculations for links

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Update the 18xx FW status private part to include Tx related link
priorities. Introduce new HW ops to determine link priority per chip
family.

For 18xx the changes are:
- Suspended links are at most low priority and Tx for them is stopped
  beyond the suspend threshold.
- Active links now get their thresholds directly from FW
- There's a new "stop" threshold for active links, at which point a link
  stops receiving new packets.

Update the min 18xx FW version required to make sure suspended links
bitmap is advertised by the FW.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Arik Nemtsov
2012-11-28 11:42:40 +02:00
committed by Luciano Coelho
parent c91ec5f3ad
commit f1626fd898
6 changed files with 127 additions and 17 deletions
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41
drivers/net/wireless/ti/wl18xx/main.c
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@@ -1397,6 +1397,45 @@ static int wl18xx_set_peer_cap(struct wl1271 *wl,
rate_set, hlid);
}
static bool wl18xx_lnk_high_prio(struct wl1271 *wl, u8 hlid,
struct wl1271_link *lnk)
{
u8 thold;
struct wl18xx_fw_status_priv *status_priv =
(struct wl18xx_fw_status_priv *)wl->fw_status_2->priv;
u32 suspend_bitmap = le32_to_cpu(status_priv->link_suspend_bitmap);
/* suspended links are never high priority */
if (test_bit(hlid, (unsigned long *)&suspend_bitmap))
return false;
/* the priority thresholds are taken from FW */
if (test_bit(hlid, (unsigned long *)&wl->fw_fast_lnk_map))
thold = status_priv->tx_fast_link_prio_threshold;
else
thold = status_priv->tx_slow_link_prio_threshold;
return lnk->allocated_pkts < thold;
}
static bool wl18xx_lnk_low_prio(struct wl1271 *wl, u8 hlid,
struct wl1271_link *lnk)
{
u8 thold;
struct wl18xx_fw_status_priv *status_priv =
(struct wl18xx_fw_status_priv *)wl->fw_status_2->priv;
u32 suspend_bitmap = le32_to_cpu(status_priv->link_suspend_bitmap);
if (test_bit(hlid, (unsigned long *)&suspend_bitmap))
thold = status_priv->tx_suspend_threshold;
else if (test_bit(hlid, (unsigned long *)&wl->fw_fast_lnk_map))
thold = status_priv->tx_fast_stop_threshold;
else
thold = status_priv->tx_slow_stop_threshold;
return lnk->allocated_pkts < thold;
}
static int wl18xx_setup(struct wl1271 *wl);
static struct wlcore_ops wl18xx_ops = {
@@ -1434,6 +1473,8 @@ static struct wlcore_ops wl18xx_ops = {
.pre_pkt_send = wl18xx_pre_pkt_send,
.sta_rc_update = wl18xx_sta_rc_update,
.set_peer_cap = wl18xx_set_peer_cap,
.lnk_high_prio = wl18xx_lnk_high_prio,
.lnk_low_prio = wl18xx_lnk_low_prio,
};
/* HT cap appropriate for wide channels in 2Ghz */