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wl12xx: AP mode - changes in TX path 

When in AP mode set appropriate HLID and rate policy for each skb.
Respond to supported-rates related changes in op_tx only when acting
as STA.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Arik Nemtsov 2010-10-16 20:27:53 +02:00 committed by Luciano Coelho
parent f84f7d78bb
commit c6c8a65de6
2 changed files with 48 additions and 10 deletions
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3
drivers/net/wireless/wl12xx/main.c
View File

@ -943,7 +943,8 @@ static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
spin_lock_irqsave(&wl->wl_lock, flags);
if (sta &&
(sta->supp_rates[conf->channel->band] !=
(wl->sta_rate_set & HW_BG_RATES_MASK))) {
(wl->sta_rate_set & HW_BG_RATES_MASK)) &&
wl->bss_type != BSS_TYPE_AP_BSS) {
wl->sta_rate_set = sta->supp_rates[conf->channel->band];
set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags);
}

55
drivers/net/wireless/wl12xx/tx.c
View File

@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/etherdevice.h>
#include "wl12xx.h"
#include "io.h"
@ -99,7 +100,7 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
{
struct timespec ts;
struct wl1271_tx_hw_descr *desc;
int pad, ac;
int pad, ac, rate_idx;
s64 hosttime;
u16 tx_attr;
@ -117,7 +118,11 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
getnstimeofday(&ts);
hosttime = (timespec_to_ns(&ts) >> 10);
desc->start_time = cpu_to_le32(hosttime - wl->time_offset);
desc->life_time = cpu_to_le16(TX_HW_MGMT_PKT_LIFETIME_TU);
if (wl->bss_type != BSS_TYPE_AP_BSS)
desc->life_time = cpu_to_le16(TX_HW_MGMT_PKT_LIFETIME_TU);
else
desc->life_time = cpu_to_le16(TX_HW_AP_MODE_PKT_LIFETIME_TU);
/* configure the tx attributes */
tx_attr = wl->session_counter << TX_HW_ATTR_OFST_SESSION_COUNTER;
@ -125,7 +130,41 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
/* queue (we use same identifiers for tid's and ac's */
ac = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
desc->tid = ac;
desc->aid = TX_HW_DEFAULT_AID;
if (wl->bss_type != BSS_TYPE_AP_BSS) {
desc->aid = TX_HW_DEFAULT_AID;
/* if the packets are destined for AP (have a STA entry)
send them with AP rate policies, otherwise use default
basic rates */
if (control->control.sta)
rate_idx = ACX_TX_AP_FULL_RATE;
else
rate_idx = ACX_TX_BASIC_RATE;
} else {
if (control->control.sta) {
struct wl1271_station *wl_sta;
wl_sta = (struct wl1271_station *)
control->control.sta->drv_priv;
desc->hlid = wl_sta->hlid;
rate_idx = ac;
} else {
struct ieee80211_hdr *hdr;
hdr = (struct ieee80211_hdr *)
(skb->data + sizeof(*desc));
if (ieee80211_is_mgmt(hdr->frame_control)) {
desc->hlid = WL1271_AP_GLOBAL_HLID;
rate_idx = ACX_TX_AP_MODE_MGMT_RATE;
} else {
desc->hlid = WL1271_AP_BROADCAST_HLID;
rate_idx = ACX_TX_AP_MODE_BCST_RATE;
}
}
}
tx_attr |= rate_idx << TX_HW_ATTR_OFST_RATE_POLICY;
desc->reserved = 0;
/* align the length (and store in terms of words) */
@ -136,14 +175,12 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
pad = pad - skb->len;
tx_attr |= pad << TX_HW_ATTR_OFST_LAST_WORD_PAD;
/* if the packets are destined for AP (have a STA entry) send them
with AP rate policies, otherwise use default basic rates */
if (control->control.sta)
tx_attr |= ACX_TX_AP_FULL_RATE << TX_HW_ATTR_OFST_RATE_POLICY;
desc->tx_attr = cpu_to_le16(tx_attr);
wl1271_debug(DEBUG_TX, "tx_fill_hdr: pad: %d", pad);
wl1271_debug(DEBUG_TX, "tx_fill_hdr: pad: %d hlid: %d "
"tx_attr: 0x%x len: %d life: %d mem: %d", pad, (int)desc->hlid,
(int)desc->tx_attr, (int)desc->length, (int)desc->life_time,
(int)desc->total_mem_blocks);
}
/* caller must hold wl->mutex */