diff options
| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-02-12 08:51:54 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-02-20 19:19:14 +0200 |
| commit | cfadc3ffccd5b75b4cd6babbfcd2271d37a82e90 (patch) | |
| tree | 8e02a3bfff4b8a5bb0f78f73476b44bc06bd3fc2 | |
| parent | 1270c416e1ba726b4a1d15167babfe5f2c0b59e6 (diff) | |
iwlwifi: pcie: stop the firmware when we restart it
In case the firmware didn't assert but we want to restart
it, e.g. we didn't get the reply for a host command, or the
Tx queues are stuck, we should stop the firmware by
provoking an interrupt. This allows to better debug the
firmware in these bad scenarios.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/tx.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index e476d9eda61a..3b0c72c10054 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -207,7 +207,7 @@ static void iwl_pcie_txq_stuck_timer(unsigned long data) IWL_ERR(trans, "scratch %d = 0x%08x\n", i, le32_to_cpu(txq->scratchbufs[i].scratch)); - iwl_trans_fw_error(trans); + iwl_write_prph(trans, DEVICE_SET_NMI_REG, 1); } /* @@ -1024,7 +1024,7 @@ static void iwl_pcie_cmdq_reclaim(struct iwl_trans *trans, int txq_id, int idx) if (nfreed++ > 0) { IWL_ERR(trans, "HCMD skipped: index (%d) %d %d\n", idx, q->write_ptr, q->read_ptr); - iwl_trans_fw_error(trans); + iwl_write_prph(trans, DEVICE_SET_NMI_REG, 1); } } @@ -1583,6 +1583,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, get_cmd_string(trans_pcie, cmd->id)); ret = -ETIMEDOUT; + iwl_write_prph(trans, DEVICE_SET_NMI_REG, 1); iwl_trans_fw_error(trans); goto cancel; |