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authorArik Nemtsov <arik@wizery.com>2012-11-27 10:44:59 +0400
committerLuciano Coelho <coelho@ti.com>2012-12-05 11:43:33 +0400
commit9ebcb232158c737db21e22b7bfdc4fc6d661ea8c (patch)
tree3e796e86c3e6755e0030111f784291893a9e2af5 /drivers/net/wireless/ti
parent8591d42452f16b1888419da4456142864b08ef9e (diff)
downloadlinux-9ebcb232158c737db21e22b7bfdc4fc6d661ea8c.tar.xz
wlcore: track FW-allocated packets per link
Move FW-allocation tracking code to the fw_status function and track allocations made by all links. These will be incorporated in the improved Tx scheduling algorithm. Manually zero the system link counters on op_stop, as this link is not allocated the normal way. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/ti')
-rw-r--r--drivers/net/wireless/ti/wlcore/main.c29
-rw-r--r--drivers/net/wireless/ti/wlcore/tx.c4
2 files changed, 18 insertions, 15 deletions
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 56ed37933022..33a9559f4d84 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -359,9 +359,8 @@ static void wl12xx_irq_update_links_status(struct wl1271 *wl,
struct wl12xx_vif *wlvif,
struct wl_fw_status_2 *status)
{
- struct wl1271_link *lnk;
u32 cur_fw_ps_map;
- u8 hlid, cnt;
+ u8 hlid;
/* TODO: also use link_fast_bitmap here */
@@ -375,17 +374,9 @@ static void wl12xx_irq_update_links_status(struct wl1271 *wl,
wl->ap_fw_ps_map = cur_fw_ps_map;
}
- for_each_set_bit(hlid, wlvif->ap.sta_hlid_map, WL12XX_MAX_LINKS) {
- lnk = &wl->links[hlid];
- cnt = status->counters.tx_lnk_free_pkts[hlid] -
- lnk->prev_freed_pkts;
-
- lnk->prev_freed_pkts = status->counters.tx_lnk_free_pkts[hlid];
- lnk->allocated_pkts -= cnt;
-
+ for_each_set_bit(hlid, wlvif->ap.sta_hlid_map, WL12XX_MAX_LINKS)
wl12xx_irq_ps_regulate_link(wl, wlvif, hlid,
- lnk->allocated_pkts);
- }
+ wl->links[hlid].allocated_pkts);
}
static int wlcore_fw_status(struct wl1271 *wl,
@@ -399,6 +390,7 @@ static int wlcore_fw_status(struct wl1271 *wl,
int i;
size_t status_len;
int ret;
+ struct wl1271_link *lnk;
status_len = WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
sizeof(*status_2) + wl->fw_status_priv_len;
@@ -424,6 +416,17 @@ static int wlcore_fw_status(struct wl1271 *wl,
wl->tx_pkts_freed[i] = status_2->counters.tx_released_pkts[i];
}
+
+ for_each_set_bit(i, wl->links_map, WL12XX_MAX_LINKS) {
+ lnk = &wl->links[i];
+ /* prevent wrap-around in freed-packets counter */
+ lnk->allocated_pkts -=
+ (status_2->counters.tx_lnk_free_pkts[i] -
+ lnk->prev_freed_pkts) & 0xff;
+
+ lnk->prev_freed_pkts = status_2->counters.tx_lnk_free_pkts[i];
+ }
+
/* prevent wrap-around in total blocks counter */
if (likely(wl->tx_blocks_freed <=
le32_to_cpu(status_2->total_released_blks)))
@@ -1886,6 +1889,8 @@ static void wlcore_op_stop_locked(struct wl1271 *wl)
wl->active_sta_count = 0;
/* The system link is always allocated */
+ wl->links[WL12XX_SYSTEM_HLID].allocated_pkts = 0;
+ wl->links[WL12XX_SYSTEM_HLID].prev_freed_pkts = 0;
__set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
/*
diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index 1ac8681732f2..076983b05b4d 100644
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -224,9 +224,7 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct wl12xx_vif *wlvif,
ac = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
wl->tx_allocated_pkts[ac]++;
- if (!wl12xx_is_dummy_packet(wl, skb) && wlvif &&
- wlvif->bss_type == BSS_TYPE_AP_BSS &&
- test_bit(hlid, wlvif->ap.sta_hlid_map))
+ if (test_bit(hlid, wl->links_map))
wl->links[hlid].allocated_pkts++;
ret = 0;