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ath10k: limit multi-vif ps more aggresivelly

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Further testing proved that multi-channel AP+STA
on QCA6174 with RM.2.0-00088 should have powersave
force-disabled to avoid beacon misses/skipping on
either side which in turn could disrupt
communication.

Since AP never has arvif->ps don't even bother
checking it. Other combinations may be broken as
well so disallow powersave with multivif outright
unless firmware advertises otherwise.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior 2015-07-09 13:08:35 +02:00 committed by Kalle Valo
parent 835d56a10c
commit 424f263014
1 changed files with 3 additions and 3 deletions
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6
drivers/net/wireless/ath/ath10k/mac.c
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@ -1668,7 +1668,7 @@ static int ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif *arvif)
return 0;
}
static int ath10k_mac_ps_vif_count(struct ath10k *ar)
static int ath10k_mac_num_vifs_started(struct ath10k *ar)
{
struct ath10k_vif *arvif;
int num = 0;
@ -1676,7 +1676,7 @@ static int ath10k_mac_ps_vif_count(struct ath10k *ar)
lockdep_assert_held(&ar->conf_mutex);
list_for_each_entry(arvif, &ar->arvifs, list)
if (arvif->ps)
if (arvif->is_started)
num++;
return num;
@ -1700,7 +1700,7 @@ static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
enable_ps = arvif->ps;
if (enable_ps && ath10k_mac_ps_vif_count(ar) > 1 &&
if (enable_ps && ath10k_mac_num_vifs_started(ar) > 1 &&
!test_bit(ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT,
ar->fw_features)) {
ath10k_warn(ar, "refusing to enable ps on vdev %i: not supported by fw\n",