From: Arik Nemtsov <arik@xxxxxxxxxx>
This does not make sense in fw >= 6/7.3.0.0.75 (wl127x/wl128x) -
we don't use Tx blocks to measure FW occupancy anymore.
This reverts commit 9e374a37b6fa2310b71d3c5657cd0c1e693120c6.
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/debugfs.c | 5 +--
drivers/net/wireless/wl12xx/main.c | 30 ++++-----------
drivers/net/wireless/wl12xx/tx.c | 68 +++++++++++----------------------
drivers/net/wireless/wl12xx/wl12xx.h | 2 +-
4 files changed, 33 insertions(+), 72 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index 37934b5..3b5f240 100644
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -336,16 +336,13 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
#define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d")
#define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s")
#define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
#define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x")
DRIVER_STATE_PRINT_INT(tx_blocks_available);
- DRIVER_STATE_PRINT_INT(tx_allocated_blocks[0]);
- DRIVER_STATE_PRINT_INT(tx_allocated_blocks[1]);
- DRIVER_STATE_PRINT_INT(tx_allocated_blocks[2]);
- DRIVER_STATE_PRINT_INT(tx_allocated_blocks[3]);
+ DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
DRIVER_STATE_PRINT_INT(tx_frames_cnt);
DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 98258fe..f91875e 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -821,30 +821,19 @@ static void wl1271_irq_update_links_status(struct wl1271 *wl,
wl1271_irq_ps_regulate_link(wl, hlid,
wl->links[hlid].allocated_blks);
}
}
-static u32 wl1271_tx_allocated_blocks(struct wl1271 *wl)
-{
- int i;
- u32 total_alloc_blocks = 0;
-
- for (i = 0; i < NUM_TX_QUEUES; i++)
- total_alloc_blocks += wl->tx_allocated_blocks[i];
-
- return total_alloc_blocks;
-}
-
static void wl1271_fw_status(struct wl1271 *wl,
struct wl1271_fw_full_status *full_status)
{
struct wl1271_fw_common_status *status = &full_status->common;
struct timespec ts;
u32 old_tx_blk_count = wl->tx_blocks_available;
- u32 freed_blocks = 0, ac_freed_blocks;
+ u32 freed_blocks = 0;
int i;
if (wl->bss_type == BSS_TYPE_AP_BSS) {
wl1271_raw_read(wl, FW_STATUS_ADDR, status,
sizeof(struct wl1271_fw_ap_status), false);
} else {
@@ -858,29 +847,27 @@ static void wl1271_fw_status(struct wl1271 *wl,
status->fw_rx_counter,
status->drv_rx_counter,
status->tx_results_counter);
/* update number of available TX blocks */
for (i = 0; i < NUM_TX_QUEUES; i++) {
- ac_freed_blocks = le32_to_cpu(status->tx_released_blks[i]) -
- wl->tx_blocks_freed[i];
- freed_blocks += ac_freed_blocks;
-
- wl->tx_allocated_blocks[i] -= ac_freed_blocks;
+ freed_blocks += le32_to_cpu(status->tx_released_blks[i]) -
+ wl->tx_blocks_freed[i];
wl->tx_blocks_freed[i] =
le32_to_cpu(status->tx_released_blks[i]);
}
+ wl->tx_allocated_blocks -= freed_blocks;
+
if (wl->bss_type == BSS_TYPE_AP_BSS) {
/* Update num of allocated TX blocks per link and ps status */
wl1271_irq_update_links_status(wl, &full_status->ap);
wl->tx_blocks_available += freed_blocks;
} else {
- int avail = full_status->sta.tx_total -
- wl1271_tx_allocated_blocks(wl);
+ int avail = full_status->sta.tx_total - wl->tx_allocated_blocks;
/*
* The FW might change the total number of TX memblocks before
* we get a notification about blocks being released. Thus, the
* available blocks calculation might yield a temporary result
* which is lower than the actual available blocks. Keeping in
@@ -2010,12 +1997,13 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl,
wl->band = IEEE80211_BAND_2GHZ;
wl->rx_counter = 0;
wl->psm_entry_retry = 0;
wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
wl->tx_blocks_available = 0;
+ wl->tx_allocated_blocks = 0;
wl->tx_results_count = 0;
wl->tx_packets_count = 0;
wl->time_offset = 0;
wl->session_counter = 0;
wl->rate_set = CONF_TX_RATE_MASK_BASIC;
wl->vif = NULL;
@@ -2030,16 +2018,14 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl,
* this is performed after the cancel_work calls and the associated
* mutex_lock, so that wl1271_op_add_interface does not accidentally
* get executed before all these vars have been reset.
*/
wl->flags = 0;
- for (i = 0; i < NUM_TX_QUEUES; i++) {
+ for (i = 0; i < NUM_TX_QUEUES; i++)
wl->tx_blocks_freed[i] = 0;
- wl->tx_allocated_blocks[i] = 0;
- }
wl1271_debugfs_reset(wl);
kfree(wl->fw_status);
wl->fw_status = NULL;
kfree(wl->tx_res_if);
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c
index 48fde96..0696aed 100644
--- a/drivers/net/wireless/wl12xx/tx.c
+++ b/drivers/net/wireless/wl12xx/tx.c
@@ -165,13 +165,13 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra,
u32 buf_offset, u8 hlid)
{
struct wl1271_tx_hw_descr *desc;
u32 total_len = skb->len + sizeof(struct wl1271_tx_hw_descr) + extra;
u32 len;
u32 total_blocks;
- int id, ret = -EBUSY, ac;
+ int id, ret = -EBUSY;
u32 spare_blocks;
if (unlikely(wl->quirks & WL12XX_QUIRK_USE_2_SPARE_BLOCKS))
spare_blocks = 2;
else
spare_blocks = 1;
@@ -203,15 +203,13 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra,
desc->wl127x_mem.total_mem_blocks = total_blocks;
}
desc->id = id;
wl->tx_blocks_available -= total_blocks;
-
- ac = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
- wl->tx_allocated_blocks[ac] += total_blocks;
+ wl->tx_allocated_blocks += total_blocks;
if (wl->bss_type == BSS_TYPE_AP_BSS)
wl->links[hlid].allocated_blks += total_blocks;
ret = 0;
@@ -456,47 +454,27 @@ void wl1271_handle_tx_low_watermark(struct wl1271 *wl)
clear_bit(i, &wl->stopped_queues_map);
spin_unlock_irqrestore(&wl->wl_lock, flags);
}
}
}
-static struct sk_buff_head *wl1271_select_queue(struct wl1271 *wl,
- struct sk_buff_head *queues)
-{
- int i, q = -1;
- u32 min_blks = 0xffffffff;
-
- /*
- * Find a non-empty ac where:
- * 1. There are packets to transmit
- * 2. The FW has the least allocated blocks
- */
- for (i = 0; i < NUM_TX_QUEUES; i++)
- if (!skb_queue_empty(&queues[i]) &&
- (wl->tx_allocated_blocks[i] < min_blks)) {
- q = i;
- min_blks = wl->tx_allocated_blocks[q];
- }
-
- if (q == -1)
- return NULL;
-
- return &queues[q];
-}
-
static struct sk_buff *wl1271_sta_skb_dequeue(struct wl1271 *wl)
{
struct sk_buff *skb = NULL;
unsigned long flags;
- struct sk_buff_head *queue;
- queue = wl1271_select_queue(wl, wl->tx_queue);
- if (!queue)
+ skb = skb_dequeue(&wl->tx_queue[CONF_TX_AC_VO]);
+ if (skb)
goto out;
-
- skb = skb_dequeue(queue);
+ skb = skb_dequeue(&wl->tx_queue[CONF_TX_AC_VI]);
+ if (skb)
+ goto out;
+ skb = skb_dequeue(&wl->tx_queue[CONF_TX_AC_BE]);
+ if (skb)
+ goto out;
+ skb = skb_dequeue(&wl->tx_queue[CONF_TX_AC_BK]);
out:
if (skb) {
int q = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
spin_lock_irqsave(&wl->wl_lock, flags);
wl->tx_queue_count[q]--;
@@ -508,35 +486,35 @@ out:
static struct sk_buff *wl1271_ap_skb_dequeue(struct wl1271 *wl)
{
struct sk_buff *skb = NULL;
unsigned long flags;
int i, h, start_hlid;
- struct sk_buff_head *queue;
/* start from the link after the last one */
start_hlid = (wl->last_tx_hlid + 1) % AP_MAX_LINKS;
/* dequeue according to AC, round robin on each link */
for (i = 0; i < AP_MAX_LINKS; i++) {
h = (start_hlid + i) % AP_MAX_LINKS;
- /* only consider connected stations */
- if (h >= WL1271_AP_STA_HLID_START &&
- !test_bit(h - WL1271_AP_STA_HLID_START, wl->ap_hlid_map))
- continue;
-
- queue = wl1271_select_queue(wl, wl->links[h].tx_queue);
- if (!queue)
- continue;
-
- skb = skb_dequeue(queue);
+ skb = skb_dequeue(&wl->links[h].tx_queue[CONF_TX_AC_VO]);
if (skb)
- break;
+ goto out;
+ skb = skb_dequeue(&wl->links[h].tx_queue[CONF_TX_AC_VI]);
+ if (skb)
+ goto out;
+ skb = skb_dequeue(&wl->links[h].tx_queue[CONF_TX_AC_BE]);
+ if (skb)
+ goto out;
+ skb = skb_dequeue(&wl->links[h].tx_queue[CONF_TX_AC_BK]);
+ if (skb)
+ goto out;
}
+out:
if (skb) {
int q = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
wl->last_tx_hlid = h;
spin_lock_irqsave(&wl->wl_lock, flags);
wl->tx_queue_count[q]--;
spin_unlock_irqrestore(&wl->wl_lock, flags);
diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index 0bc2935..5b00a84 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -421,13 +421,13 @@ struct wl1271 {
struct wl1271_acx_mem_map *target_mem_map;
/* Accounting for allocated / available TX blocks on HW */
u32 tx_blocks_freed[NUM_TX_QUEUES];
u32 tx_blocks_available;
- u32 tx_allocated_blocks[NUM_TX_QUEUES];
+ u32 tx_allocated_blocks;
u32 tx_results_count;
/* Transmitted TX packets counter for chipset interface */
u32 tx_packets_count;
/* Time-offset between host and chipset clocks */
--
1.7.6.401.g6a319
--
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