diff options
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index dda8d11ed83f..77048db3b32a 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -45,6 +45,8 @@ int rtl8xxxu_debug = RTL8XXXU_DEBUG_EFUSE; static bool rtl8xxxu_ht40_2g; static bool rtl8xxxu_dma_aggregation; +static int rtl8xxxu_dma_agg_timeout = -1; +static int rtl8xxxu_dma_agg_pages = -1; MODULE_AUTHOR("Jes Sorensen <Jes.Sorensen@redhat.com>"); MODULE_DESCRIPTION("RTL8XXXu USB mac80211 Wireless LAN Driver"); @@ -65,6 +67,10 @@ 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"); +module_param_named(dma_agg_timeout, rtl8xxxu_dma_agg_timeout, int, 0600); +MODULE_PARM_DESC(dma_agg_timeout, "Set DMA aggregation timeout (range 1-127)"); +module_param_named(dma_agg_pages, rtl8xxxu_dma_agg_pages, int, 0600); +MODULE_PARM_DESC(dma_agg_pages, "Set DMA aggregation pages (range 1-127, 0 to disable)"); #define USB_VENDOR_ID_REALTEK 0x0bda #define RTL8XXXU_RX_URBS 32 @@ -4441,6 +4447,18 @@ void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv) */ page_thresh = (priv->fops->rx_agg_buf_size / 512); + if (rtl8xxxu_dma_agg_pages >= 0) { + if (rtl8xxxu_dma_agg_pages <= page_thresh) + timeout = page_thresh; + else if (rtl8xxxu_dma_agg_pages <= 6) + dev_err(&priv->udev->dev, + "%s: dma_agg_pages=%i too small, minium is 6\n", + __func__, rtl8xxxu_dma_agg_pages); + else + dev_err(&priv->udev->dev, + "%s: dma_agg_pages=%i larger than limit %i\n", + __func__, rtl8xxxu_dma_agg_pages, page_thresh); + } rtl8xxxu_write8(priv, REG_RXDMA_AGG_PG_TH, page_thresh); /* * REG_RXDMA_AGG_PG_TH + 1 seems to be the timeout register on @@ -4448,6 +4466,16 @@ void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv) * don't set it, so better set both. */ timeout = 4; + + if (rtl8xxxu_dma_agg_timeout >= 0) { + if (rtl8xxxu_dma_agg_timeout <= 127) + timeout = rtl8xxxu_dma_agg_timeout; + else + dev_err(&priv->udev->dev, + "%s: Invalid dma_agg_timeout: %i\n", + __func__, rtl8xxxu_dma_agg_timeout); + } + rtl8xxxu_write8(priv, REG_RXDMA_AGG_PG_TH + 1, timeout); rtl8xxxu_write8(priv, REG_USB_DMA_AGG_TO, timeout); priv->rx_buf_aggregation = 1; |