diff options
| author | Dedy Lansky <dlansky@codeaurora.org> | 2019-02-22 16:21:00 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-02-28 11:24:19 +0200 |
| commit | 0439a5e035f7180f7ed68ce2face1b7c77be0c6a (patch) | |
| tree | e3d88ac816640b54eb661bc2ed96598b09cc565a /drivers/net/wireless/ath/wil6210/debugfs.c | |
| parent | 387f3794b8cfbdfe6e627978ae4aec92b91b5fb8 (diff) | |
| download | linux-0439a5e035f7180f7ed68ce2face1b7c77be0c6a.tar.gz | |
wil6210: add option to drop Tx packets when Tx ring is full
In AP mode with multiple clients, driver stops net queue (netif_tx_stop_queue) upon first ring (serving specific client) becoming full. This can have negative effect on transmission to other clients which may still have room in their corresponding rings. Implement new policy in which stop/wake net queue are not used. In case there is no room in the ring for a transmitted packet, drop the packet. New policy can be helpful to debug performance issues, to guarantee maximum utilization of net queues. New policy is disabled by default and can be enabled by debugfs: echo 1 > drop_if_ring_full Signed-off-by: Dedy Lansky <dlansky@codeaurora.org> Signed-off-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/debugfs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 835c902b84c1..acbf2f0c440e 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. - * Copyright (c) 2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -2386,6 +2386,7 @@ static const struct dbg_off dbg_statics[] = { {"led_polarity", 0644, (ulong)&led_polarity, doff_u8}, {"status_index", 0644, (ulong)&dbg_status_msg_index, doff_u32}, {"sring_index", 0644, (ulong)&dbg_sring_index, doff_u32}, + {"drop_if_ring_full", 0644, (ulong)&drop_if_ring_full, doff_u8}, {}, }; |