> -----Original Message-----
> From: Su Hui <suhui@xxxxxxxxxxxx>
> Sent: Monday, November 13, 2023 1:49 PM
> To: Jes.Sorensen@xxxxxxxxx; kvalo@xxxxxxxxxx
> Cc: Su Hui <suhui@xxxxxxxxxxxx>; linux-wireless@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> kernel-janitors@xxxxxxxxxxxxxxx
> Subject: [PATCH] wifi: rtl8xxxu: correct the error value of 'timeout'
>
> When 'rtl8xxxu_dma_agg_pages <= page_thresh', 'timeout' should equal to
> 'page_thresh' rather than '4'. Change the code order to fix this problem.
>
> Fixes: 614e389f36a9 ("rtl8xxxu: gen1: Set aggregation timeout (REG_RXDMA_AGG_PG_TH + 1) as well")
I think this should fix
Fixes: fd83f1227826 ("rtl8xxxu: gen1: Add module parameters to adjust DMA aggregation parameters")
> Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
> ---
> .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> index 43ee7592bc6e..9cab8b1dc486 100644
> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> @@ -4757,6 +4757,12 @@ void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv)
> * RxAggPageTimeout = 4 or 6 (absolute time 34ms/(2^6))
> */
>
> + /* REG_RXDMA_AGG_PG_TH + 1 seems to be the timeout register on
> + * gen2 chips and rtl8188eu. The rtl8723au seems unhappy if we
> + * don't set it, so better set both.
> + */
> + timeout = 4;
> +
> page_thresh = (priv->fops->rx_agg_buf_size / 512);
> if (rtl8xxxu_dma_agg_pages >= 0) {
> if (rtl8xxxu_dma_agg_pages <= page_thresh)
The logic here is:
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;
Do you know why 'timeout = page_thresh;'? Intuitively, units of 'timeout' and
'thresh' are different. Maybe, we should correct here instead?
