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wil6210: RX high threshold interrupt configuration

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Rx high threshold interrupt is reported by the hardware in case
when number of not utilized by the HW descriptors in the Rx ring
becomes low.
Introduce module parameter for RX high threshold.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Vladimir Kondratiev
2014-12-23 09:47:20 +02:00
committed by Kalle Valo
parent 78366f69be
commit ab95462825
3 changed files with 14 additions and 1 deletions
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9
drivers/net/wireless/ath/wil6210/main.c
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@@ -61,6 +61,13 @@ module_param(rx_max_burst_duration, uint, S_IRUGO);
MODULE_PARM_DESC(rx_max_burst_duration,
" Interrupt moderation RX max burst duration, usecs.");
/* if not set via modparam, will be set to default value of 1/8 of
* rx ring size during init flow
*/
unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT;
module_param(rx_ring_overflow_thrsh, ushort, S_IRUGO);
MODULE_PARM_DESC(rx_ring_overflow_thrsh,
" RX ring overflow threshold in descriptors.");
/* We allow allocation of more than 1 page buffers to support large packets.
* It is suboptimal behavior performance wise in case MTU above page size.
@@ -456,6 +463,8 @@ int wil_priv_init(struct wil6210_priv *wil)
wil->tx_max_burst_duration = tx_max_burst_duration;
wil->rx_max_burst_duration = rx_max_burst_duration;
if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT)
rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT;
return 0;
out_wmi_wq: