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wifi: iwlwifi: pcie: enable TOP fatal error interrupt

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Enable the TOP (HW part) fatal error interrupt and add a
print when it happens. Currently FW always adds also the
SW error interrupt, but for >= Bz we'll need to do PLDR
in case this is asserted, so leave a TODO item already.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230913145231.127d914a4d0d.I41ea409df63474554ef727c49382d0b5bf15939e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2023-09-13 14:56:39 +03:00
parent af9d34abf5
commit 9536a09157
3 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/intel/iwlwifi/iwl-csr.h
View File

@@ -618,6 +618,7 @@ enum msix_hw_int_causes {
MSIX_HW_INT_CAUSES_REG_WAKEUP = BIT(1),
MSIX_HW_INT_CAUSES_REG_IML = BIT(1),
MSIX_HW_INT_CAUSES_REG_RESET_DONE = BIT(2),
MSIX_HW_INT_CAUSES_REG_TOP_FATAL_ERR = BIT(3),
MSIX_HW_INT_CAUSES_REG_SW_ERR_BZ = BIT(5),
MSIX_HW_INT_CAUSES_REG_CT_KILL = BIT(6),
MSIX_HW_INT_CAUSES_REG_RF_KILL = BIT(7),

6
drivers/net/wireless/intel/iwlwifi/pcie/rx.c
View File

@@ -2291,6 +2291,12 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id)
else
sw_err = inta_hw & MSIX_HW_INT_CAUSES_REG_SW_ERR;
if (inta_hw & MSIX_HW_INT_CAUSES_REG_TOP_FATAL_ERR) {
IWL_ERR(trans, "TOP Fatal error detected, inta_hw=0x%x.\n",
inta_hw);
/* TODO: PLDR flow required here for >= Bz */
}
/* Error detected by uCode */
if ((inta_fh & MSIX_FH_INT_CAUSES_FH_ERR) || sw_err) {
IWL_ERR(trans,

1
drivers/net/wireless/intel/iwlwifi/pcie/trans.c
View File

@@ -1111,6 +1111,7 @@ static const struct iwl_causes_list causes_list_common[] = {
IWL_CAUSE(CSR_MSIX_HW_INT_MASK_AD, MSIX_HW_INT_CAUSES_REG_ALIVE),
IWL_CAUSE(CSR_MSIX_HW_INT_MASK_AD, MSIX_HW_INT_CAUSES_REG_WAKEUP),
IWL_CAUSE(CSR_MSIX_HW_INT_MASK_AD, MSIX_HW_INT_CAUSES_REG_RESET_DONE),
IWL_CAUSE(CSR_MSIX_HW_INT_MASK_AD, MSIX_HW_INT_CAUSES_REG_TOP_FATAL_ERR),
IWL_CAUSE(CSR_MSIX_HW_INT_MASK_AD, MSIX_HW_INT_CAUSES_REG_CT_KILL),
IWL_CAUSE(CSR_MSIX_HW_INT_MASK_AD, MSIX_HW_INT_CAUSES_REG_RF_KILL),
IWL_CAUSE(CSR_MSIX_HW_INT_MASK_AD, MSIX_HW_INT_CAUSES_REG_PERIODIC),