diff options
| author | Xinming Hu <huxm@marvell.com> | 2016-09-28 15:48:27 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-11-09 04:33:27 +0300 |
| commit | 49abe5c83cd066f34f308d8c9e8abff7c2fb5d64 (patch) | |
| tree | a3419b635acfdc95a83dbe42a344db7c055de3a4 /drivers/net/wireless/marvell/mwifiex/wmm.c | |
| parent | 77f486c8bb39546fe7e574b6ec371e83fe772ee5 (diff) | |
| download | linux-49abe5c83cd066f34f308d8c9e8abff7c2fb5d64.tar.xz | |
mwifiex: fix command timeout problem seen in stress tests
It is observed that if single tid 6 packet comes among with massive tid 0
packets, tid 6 packet may stay in it's queue and will never be
transmited. This is because wmm.highest_queued_prio will be set to 2
during transmission of tid 0 packets As a result, main work thread
keeps on looping without serving that packet. In this case, if command
has downloaded to firmware, driver doesn't process it's response causing
command timeout.
This patch will reset highest_queued_prio if packets exist in data
queue, and try to find a ra_list for current private.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/marvell/mwifiex/wmm.c')
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/wmm.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/wmm.c b/drivers/net/wireless/marvell/mwifiex/wmm.c index 1ff3a87d5784..28c2f6fae3e6 100644 --- a/drivers/net/wireless/marvell/mwifiex/wmm.c +++ b/drivers/net/wireless/marvell/mwifiex/wmm.c @@ -1105,6 +1105,7 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, &adapter->bss_prio_tbl[j].bss_prio_head, list) { +try_again: priv_tmp = adapter->bss_prio_tbl[j].bss_prio_cur->priv; if (((priv_tmp->bss_mode != NL80211_IFTYPE_ADHOC) && @@ -1140,8 +1141,18 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, ra_list_spinlock, flags_ra); } - } + if (atomic_read(&priv_tmp->wmm.tx_pkts_queued) != 0) { + atomic_set(&priv_tmp->wmm.highest_queued_prio, + HIGH_PRIO_TID); + /* Iterate current private once more, since + * there still exist packets in data queue + */ + goto try_again; + } else + atomic_set(&priv_tmp->wmm.highest_queued_prio, + NO_PKT_PRIO_TID); + } } return NULL; |