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| author | Jes Sorensen <Jes.Sorensen@redhat.com> | 2016-06-27 12:32:08 -0400 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-07-08 16:41:58 +0300 |
| commit | 82cce22acd8ec7c75087825f23c053a642e7b672 (patch) | |
| tree | 7db30048d59890c272dac5cda1ebad5480789348 /drivers/net/wireless/realtek/rtl8xxxu | |
| parent | 0a20ed8bd057c05ed138d8d39ac496d874c3ccb6 (diff) | |
| download | talos-obmc-linux-82cce22acd8ec7c75087825f23c053a642e7b672.tar.gz talos-obmc-linux-82cce22acd8ec7c75087825f23c053a642e7b672.zip | |
rtl8xxxu: Make DMA aggregation optional by setting a module parameter
Let the default to off until we have more data on the right default
tuning values.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtl8xxxu')
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index fb0e5b9063d8..33e2909941af 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -44,6 +44,7 @@ int rtl8xxxu_debug = RTL8XXXU_DEBUG_EFUSE; static bool rtl8xxxu_ht40_2g; +static bool rtl8xxxu_dma_aggregation; MODULE_AUTHOR("Jes Sorensen <Jes.Sorensen@redhat.com>"); MODULE_DESCRIPTION("RTL8XXXu USB mac80211 Wireless LAN Driver"); @@ -62,6 +63,8 @@ module_param_named(debug, rtl8xxxu_debug, int, 0600); MODULE_PARM_DESC(debug, "Set debug mask"); module_param_named(ht40_2g, rtl8xxxu_ht40_2g, bool, 0600); MODULE_PARM_DESC(ht40_2g, "Enable HT40 support on the 2.4GHz band"); +module_param_named(dma_aggregation, rtl8xxxu_dma_aggregation, bool, 0600); +MODULE_PARM_DESC(dma_aggregation, "Enable DMA packet aggregation"); #define USB_VENDOR_ID_REALTEK 0x0bda #define RTL8XXXU_RX_URBS 32 @@ -4411,14 +4414,18 @@ void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv) usb_spec = rtl8xxxu_read8(priv, REG_USB_SPECIAL_OPTION); usb_spec &= ~USB_SPEC_USB_AGG_ENABLE; + rtl8xxxu_write8(priv, REG_USB_SPECIAL_OPTION, usb_spec); agg_ctrl = rtl8xxxu_read8(priv, REG_TRXDMA_CTRL); agg_ctrl &= ~TRXDMA_CTRL_RXDMA_AGG_EN; - agg_ctrl |= TRXDMA_CTRL_RXDMA_AGG_EN; + if (!rtl8xxxu_dma_aggregation) { + rtl8xxxu_write8(priv, REG_TRXDMA_CTRL, agg_ctrl); + return; + } + agg_ctrl |= TRXDMA_CTRL_RXDMA_AGG_EN; rtl8xxxu_write8(priv, REG_TRXDMA_CTRL, agg_ctrl); - rtl8xxxu_write8(priv, REG_USB_SPECIAL_OPTION, usb_spec); /* * The number of packets we can take looks to be buffer size / 512 |
