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ath10k: enable a HTC debug message during insufficient tx credits

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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>
This commit is contained in:
Mohammed Shafi Shajakhan 2017-03-31 17:29:26 +05:30 committed by Kalle Valo
parent d94475c2f9
commit 03e463a419
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/ath/ath10k/htc.c
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@ -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;