diff options
| author |   Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2011-11-17 16:05:09 -0800 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2011-11-21 16:20:47 -0500 |
| commit | 08d1700da05a2246ee0d9d2440d5c165615c352c (patch) | |
| tree | 0a87a629a5d2cec30bddf1ea4cb57dae8a307e46 /drivers | |
| parent | brcm80211: smac: Use kmemdup rather than duplicating its implementation (diff) | |
| download | linux-dev-08d1700da05a2246ee0d9d2440d5c165615c352c.tar.xz linux-dev-08d1700da05a2246ee0d9d2440d5c165615c352c.zip | |
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: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-pcie.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c index a1a58330273f..3f2ceb2033dc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c @@ -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; } |