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authorMohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>2017-03-31 14:59:26 +0300
committerKalle Valo <kvalo@qca.qualcomm.com>2017-04-05 10:37:41 +0300
commit03e463a4197a05f196b1b9e9bb3b66fecbe50889 (patch)
treefdfa793e077f20dd69b290da06d60ce5f5170ea0 /drivers/net/wireless/ath
parentd94475c2f95c8fbc6871aaf2df3fd093c329dde8 (diff)
downloadlinux-03e463a4197a05f196b1b9e9bb3b66fecbe50889.tar.xz
ath10k: enable a HTC debug message during insufficient tx credits
Add an ath10k HTC debug message when insufficient tx credits are available to send the WMI commands. This is very useful in debugging issues like 'tx credit starvation' that could possibly happen with multiclient setup with constant roaming Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ath10k/htc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index 9f6a915f91bf..f56f60462b33 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -119,6 +119,9 @@ int ath10k_htc_send(struct ath10k_htc *htc,
credits = DIV_ROUND_UP(skb->len, htc->target_credit_size);
spin_lock_bh(&htc->tx_lock);
if (ep->tx_credits < credits) {
+ ath10k_dbg(ar, ATH10K_DBG_HTC,
+ "htc insufficient credits ep %d required %d available %d\n",
+ eid, credits, ep->tx_credits);
spin_unlock_bh(&htc->tx_lock);
ret = -EAGAIN;
goto err_pull;