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ath10k: don't wait for device init if it crashed 

When warm resetting it's possible for device to
crash during initialization. Instead of waiting 3
seconds just return failure as soon as
FW_IND_EVENT_PENDING is set.

This speeds up device bootup and recovery in some
cases.

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 2014-04-23 19:30:04 +03:00 committed by Kalle Valo
parent 6a4f6e1d29
commit 7710cd2e24
1 changed files with 10 additions and 0 deletions
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10
drivers/net/wireless/ath/ath10k/pci.c
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@ -2452,6 +2452,10 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
if (val == 0xffffffff) if (val == 0xffffffff)
continue; continue;
/* the device has crashed so don't bother trying anymore */
if (val & FW_IND_EVENT_PENDING)
break;
if (val & FW_IND_INITIALIZED) if (val & FW_IND_INITIALIZED)
break; break;
@ -2470,6 +2474,12 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
goto out; goto out;
} }
if (val & FW_IND_EVENT_PENDING) {
ath10k_warn("device has crashed during init\n");
ret = -ECOMM;
goto out;
}
if (!(val & FW_IND_INITIALIZED)) { if (!(val & FW_IND_INITIALIZED)) {
ath10k_err("failed to receive initialized event from target: %08x\n", ath10k_err("failed to receive initialized event from target: %08x\n",
val); val);