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Commit 08d1700d authored by Emmanuel Grumbach's avatar Emmanuel Grumbach Committed by John W. Linville
Browse files

iwlwifi: check the HW when a queue is stuck 



Add more information when a queue is stuck and actually get
information from the scheduler instead of looking at internal
variables.

Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 1f1d5289

drivers/net/wireless/iwlwifi/iwl-trans-pcie.c

+5 −1
Original line number Diff line number Diff line
@@ -1515,8 +1515,12 @@ static int iwl_trans_pcie_check_stuck_queue(struct iwl_trans *trans, int cnt) 
	if (time_after(jiffies, timeout)) {

		IWL_ERR(trans, "Queue %d stuck for %u ms.\n", q->id,

			hw_params(trans).wd_timeout);

		IWL_ERR(trans, "Current read_ptr %d write_ptr %d\n",

		IWL_ERR(trans, "Current SW read_ptr %d write_ptr %d\n",

			q->read_ptr, q->write_ptr);

		IWL_ERR(trans, "Current HW read_ptr %d write_ptr %d\n",

			iwl_read_prph(bus(trans), SCD_QUEUE_RDPTR(cnt))

				& (TFD_QUEUE_SIZE_MAX - 1),

			iwl_read_prph(bus(trans), SCD_QUEUE_WRPTR(cnt)));

		return 1;

	}