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wl1271: Increase connection reliability

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This patch improves connection reliability by choosing the lowest basic
rate for null-func frames (which increases their range, as the firmware does
not do rate fall-back for null-func frames.) Also, increase the PSM entry
retry-counter.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Tested-by: Tuomas Katila <ext-tuomas.2.katila@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
This commit is contained in:
Juuso Oikarinen 2010-09-24 03:10:11 +02:00 committed by Luciano Coelho
parent bea39d6a60
commit 8eab7b4708
4 changed files with 28 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/wl12xx/wl1271_cmd.c
View File

@ -408,8 +408,8 @@ int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, u32 rates, bool send)
ps_params->ps_mode = ps_mode;
ps_params->send_null_data = send;
ps_params->retries = 5;
ps_params->hang_over_period = 1;
ps_params->retries = wl->conf.conn.psm_entry_nullfunc_retries;
ps_params->hang_over_period = wl->conf.conn.psm_entry_hangover_period;
ps_params->null_data_rate = cpu_to_le32(rates);
ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
@ -484,7 +484,7 @@ int wl1271_cmd_build_null_data(struct wl1271 *wl)
}
ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
WL1271_RATE_AUTOMATIC);
wl->basic_rate);
out:
dev_kfree_skb(skb);
@ -507,7 +507,7 @@ int wl1271_cmd_build_klv_null_data(struct wl1271 *wl)
ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
skb->data, skb->len,
CMD_TEMPL_KLV_IDX_NULL_DATA,
WL1271_RATE_AUTOMATIC);
wl->basic_rate);
out:
dev_kfree_skb(skb);
@ -584,7 +584,7 @@ int wl1271_build_qos_null_data(struct wl1271 *wl)
return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
sizeof(template), 0,
WL1271_RATE_AUTOMATIC);
wl->basic_rate);
}
int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)

16
drivers/net/wireless/wl12xx/wl1271_conf.h
View File

@ -911,6 +911,22 @@ struct conf_conn_settings {
*/
u8 psm_entry_retries;
/*
* Specifies the maximum number of times to try transmit the PSM entry
* null-func frame for each PSM entry attempt
*
* Range 0 - 255
*/
u8 psm_entry_nullfunc_retries;
/*
* Specifies the time to linger in active mode after successfully
* transmitting the PSM entry null-func frame.
*
* Range 0 - 255 TU's
*/
u8 psm_entry_hangover_period;
/*
*
* Specifies the interval of the connection keep-alive null-func

7
drivers/net/wireless/wl12xx/wl1271_event.c
View File

@ -96,7 +96,6 @@ static int wl1271_event_ps_report(struct wl1271 *wl,
{
int ret = 0;
u32 total_retries = wl->conf.conn.psm_entry_retries;
u32 rates;
wl1271_debug(DEBUG_EVENT, "ps_status: 0x%x", mbox->ps_status);
@ -112,12 +111,8 @@ static int wl1271_event_ps_report(struct wl1271 *wl,
if (wl->psm_entry_retry < total_retries) {
wl->psm_entry_retry++;
if (wl->psm_entry_retry == total_retries)
rates = wl->basic_rate;
else
rates = wl->basic_rate_set;
ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
rates, true);
wl->basic_rate, true);
} else {
wl1271_info("No ack to nullfunc from AP.");
wl->psm_entry_retry = 0;

10
drivers/net/wireless/wl12xx/wl1271_main.c
View File

@ -214,7 +214,9 @@ static struct conf_drv_settings default_conf = {
.ps_poll_recovery_period = 700,
.bet_enable = CONF_BET_MODE_ENABLE,
.bet_max_consecutive = 10,
.psm_entry_retries = 3,
.psm_entry_retries = 5,
.psm_entry_nullfunc_retries = 3,
.psm_entry_hangover_period = 1,
.keep_alive_interval = 55000,
.max_listen_interval = 20,
},
@ -1360,7 +1362,7 @@ static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
wl1271_debug(DEBUG_PSM, "psm enabled");
ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
wl->basic_rate_set, true);
wl->basic_rate, true);
}
} else if (!(conf->flags & IEEE80211_CONF_PS) &&
test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
@ -1370,7 +1372,7 @@ static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
if (test_bit(WL1271_FLAG_PSM, &wl->flags))
ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
wl->basic_rate_set, true);
wl->basic_rate, true);
}
if (conf->power_level != wl->power_level) {
@ -1846,7 +1848,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
!test_bit(WL1271_FLAG_PSM, &wl->flags)) {
mode = STATION_POWER_SAVE_MODE;
ret = wl1271_ps_set_mode(wl, mode,
wl->basic_rate_set,
wl->basic_rate,
true);
if (ret < 0)
goto out_sleep;