diff options
| author |   Mordechay Goodstein <mordechay.goodstein@intel.com> | 2021-04-11 12:46:27 +0300 |
|---|---|---|
| committer |   Luca Coelho <luciano.coelho@intel.com> | 2021-04-14 12:07:19 +0300 |
| commit | 9d401222db54dac353fecad26f2610c12c33ef47 (patch) | |
| tree | b2fbb126041368c92ff49a1013bfb63c783d20fb /drivers/net/wireless/intel/iwlwifi/pcie/rx.c | |
| parent | iwlwifi: pcie: merge napi_poll_msix functions (diff) | |
| download | linux-dev-9d401222db54dac353fecad26f2610c12c33ef47.tar.xz linux-dev-9d401222db54dac353fecad26f2610c12c33ef47.zip | |
iwlwifi: pcie: add ISR debug info for msix debug
The debug prints help in case we get timeout on waiting for
hw.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210411124417.306e2e56d3e8.I72e2977abbb1fddf23b8476bedf6a183fe969ff5@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 | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index e4607f943ac3..fb8491412be4 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -1023,6 +1023,9 @@ static int iwl_pcie_napi_poll(struct napi_struct *napi, int budget) ret = iwl_pcie_rx_handle(trans, rxq->id, budget); + IWL_DEBUG_ISR(trans, "[%d] handled %d, budget %d\n", + rxq->id, ret, budget); + if (ret < budget) { spin_lock(&trans_pcie->irq_lock); if (test_bit(STATUS_INT_ENABLED, &trans->status)) @@ -1636,10 +1639,13 @@ irqreturn_t iwl_pcie_irq_rx_msix_handler(int irq, void *dev_id) if (WARN_ON(entry->entry >= trans->num_rx_queues)) return IRQ_NONE; - if (WARN_ONCE(!rxq, "Got MSI-X interrupt before we have Rx queues")) + if (WARN_ONCE(!rxq, + "[%d] Got MSI-X interrupt before we have Rx queues", + entry->entry)) return IRQ_NONE; lock_map_acquire(&trans->sync_cmd_lockdep_map); + IWL_DEBUG_ISR(trans, "[%d] Got interrupt\n", entry->entry); local_bh_disable(); if (napi_schedule_prep(&rxq->napi)) @@ -2203,8 +2209,8 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id) if (iwl_have_debug_level(IWL_DL_ISR)) { IWL_DEBUG_ISR(trans, - "ISR inta_fh 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n", - inta_fh, trans_pcie->fh_mask, + "ISR[%d] inta_fh 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n", + entry->entry, inta_fh, trans_pcie->fh_mask, iwl_read32(trans, CSR_MSIX_FH_INT_MASK_AD)); if (inta_fh & ~trans_pcie->fh_mask) IWL_DEBUG_ISR(trans, @@ -2259,8 +2265,8 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id) /* After checking FH register check HW register */ if (iwl_have_debug_level(IWL_DL_ISR)) { IWL_DEBUG_ISR(trans, - "ISR inta_hw 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n", - inta_hw, trans_pcie->hw_mask, + "ISR[%d] inta_hw 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n", + entry->entry, inta_hw, trans_pcie->hw_mask, iwl_read32(trans, CSR_MSIX_HW_INT_MASK_AD)); if (inta_hw & ~trans_pcie->hw_mask) IWL_DEBUG_ISR(trans, |