diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-08-02 17:09:40 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2021-08-26 23:32:21 +0300 |
| commit | e63aafea74393e6c6ca0dd439e72021830a0fcac (patch) | |
| tree | 1b4f937e41e693edfe77681801f5098c84caae62 /drivers/net/wireless/intel/iwlwifi/pcie/rx.c | |
| parent | b8221b0f750a05a7ae9cbca84932e2a36a3ee658 (diff) | |
| download | linux-e63aafea74393e6c6ca0dd439e72021830a0fcac.tar.bz2 | |
iwlwifi: pcie: dump error on FW reset handshake failures
If the firmware crashes while we're waiting for the reset
handshake then it cannot possibly make progress anymore,
and we will just time out the wait. That's pointless, so
just stop waiting at that point.
Additionally, if it never acknowledges the reset handshake,
something went wrong.
Dump an error in both of these cases, but we need to do it
synchronously here since the device will be turned off.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802170640.8b6a33544b4b.I55f97f70f8efa64db064a9207177a094c60ac8f1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/rx.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 54bfc01ab34c..8e45eb38304b 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -2228,7 +2228,13 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id) "Microcode SW error detected. Restarting 0x%X.\n", inta_fh); isr_stats->sw++; - iwl_pcie_irq_handle_error(trans); + /* during FW reset flow report errors from there */ + if (trans_pcie->fw_reset_state == FW_RESET_REQUESTED) { + trans_pcie->fw_reset_state = FW_RESET_ERROR; + wake_up(&trans_pcie->fw_reset_waitq); + } else { + iwl_pcie_irq_handle_error(trans); + } } /* After checking FH register check HW register */ @@ -2296,7 +2302,7 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id) if (inta_hw & MSIX_HW_INT_CAUSES_REG_RESET_DONE) { IWL_DEBUG_ISR(trans, "Reset flow completed\n"); - trans_pcie->fw_reset_done = true; + trans_pcie->fw_reset_state = FW_RESET_OK; wake_up(&trans_pcie->fw_reset_waitq); } |