diff options
| author | David Mosberger-Tang <davidm@egauge.net> | 2021-12-10 20:30:22 +0000 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2021-12-16 10:30:21 +0200 |
| commit | b530d5f39c2fb64a70bb4672dd378e33b5a6b8f9 (patch) | |
| tree | 2e2b7990eecf21bc26b32586905a6220c7fd469c /drivers/net/wireless/microchip | |
| parent | 97affcfa15bbcd943393a02f085f10193c8e75ac (diff) | |
wilc1000: Improve WILC TX performance when power_save is off
The wakeup and sleep commands need to be sent to the WILC chip only
when it is in power save mode (PSM, as controlled by "iw dev wlan0 set
power_save on/off"). The commands are relatively costly, so it pays
to skip them when possible.
iperf3 without this patch (no significant different with PSM on/off):
TX 0.00-120.01 sec 140 MBytes 9.82 Mbits/sec
RX 0.00-120.69 sec 283 MBytes 19.6 Mbits/sec
with this patch applied:
PSM off (TX is 46% improved, RX slightly improved; may not be significant):
TX 0.00-120.00 sec 206 MBytes 14.4 Mbits/sec
RX 0.00-120.48 sec 322 MBytes 22.4 Mbits/sec
PSM on (no significant change):
TX 0.00-120.00 sec 140 MBytes 9.78 Mbits/sec
RX 0.00-120.08 sec 257 MBytes 18.0 Mbits/sec
Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211210203016.3680425-2-davidm@egauge.net
Diffstat (limited to 'drivers/net/wireless/microchip')
| -rw-r--r-- | drivers/net/wireless/microchip/wilc1000/hif.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/microchip/wilc1000/netdev.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/microchip/wilc1000/wlan.c | 4 |
3 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c index a019da0bfc3f..71b44cfe0dfc 100644 --- a/drivers/net/wireless/microchip/wilc1000/hif.c +++ b/drivers/net/wireless/microchip/wilc1000/hif.c @@ -1929,6 +1929,7 @@ int wilc_edit_station(struct wilc_vif *vif, const u8 *mac, int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout) { + struct wilc *wilc = vif->wilc; struct wid wid; int result; s8 power_mode; @@ -1944,6 +1945,8 @@ int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout) result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1); if (result) netdev_err(vif->ndev, "Failed to send power management\n"); + else + wilc->power_save_mode = enabled; return result; } diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.h b/drivers/net/wireless/microchip/wilc1000/netdev.h index b9a88b3e322f..6c0e634d0249 100644 --- a/drivers/net/wireless/microchip/wilc1000/netdev.h +++ b/drivers/net/wireless/microchip/wilc1000/netdev.h @@ -212,6 +212,7 @@ struct wilc { s8 mac_status; struct clk *rtc_clk; bool initialized; + bool power_save_mode; int dev_irq_num; int close; u8 vif_num; diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c index 1aa4236a2fe4..3f339c2f46f1 100644 --- a/drivers/net/wireless/microchip/wilc1000/wlan.c +++ b/drivers/net/wireless/microchip/wilc1000/wlan.c @@ -20,13 +20,13 @@ static inline bool is_wilc1000(u32 id) static inline void acquire_bus(struct wilc *wilc, enum bus_acquire acquire) { mutex_lock(&wilc->hif_cs); - if (acquire == WILC_BUS_ACQUIRE_AND_WAKEUP) + if (acquire == WILC_BUS_ACQUIRE_AND_WAKEUP && wilc->power_save_mode) chip_wakeup(wilc); } static inline void release_bus(struct wilc *wilc, enum bus_release release) { - if (release == WILC_BUS_RELEASE_ALLOW_SLEEP) + if (release == WILC_BUS_RELEASE_ALLOW_SLEEP && wilc->power_save_mode) chip_allow_sleep(wilc); mutex_unlock(&wilc->hif_cs); } |