diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2017-06-13 21:19:47 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2017-06-29 20:27:48 +0300 |
| commit | c42ff65da8167fa486bfcb7ea290cbdee8350aa7 (patch) | |
| tree | 869261a1840cb2e7510107a9ea03287c46d75a10 /drivers/net/wireless | |
| parent | e6835942a7414ef4fd07b59851ad1fca7560dec1 (diff) | |
iwlwifi: pcie: add MSI-X interrupt tracing
We have tracing for both pre-ICT and ICT interrupts, including all
the data read there. Extend the tracing to MSI-X interrupts.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h | 26 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 4 |
2 files changed, 29 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h index 1dccae6532cf..4164dc1745ed 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h @@ -1,7 +1,7 @@ /****************************************************************************** * * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2016 Intel Deutschland GmbH + * Copyright(c) 2016-2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -29,6 +29,7 @@ #define __IWLWIFI_DEVICE_TRACE_IO #include <linux/tracepoint.h> +#include <linux/pci.h> #undef TRACE_SYSTEM #define TRACE_SYSTEM iwlwifi_io @@ -165,6 +166,29 @@ TRACE_EVENT(iwlwifi_dev_irq, TP_printk("%d", 0) ); +TRACE_EVENT(iwlwifi_dev_irq_msix, + TP_PROTO(const struct device *dev, struct msix_entry *msix_entry, + bool defirq, u32 inta_fh, u32 inta_hw), + TP_ARGS(dev, msix_entry, defirq, inta_fh, inta_hw), + TP_STRUCT__entry( + DEV_ENTRY + __field(u32, entry) + __field(u8, defirq) + __field(u32, inta_fh) + __field(u32, inta_hw) + ), + TP_fast_assign( + DEV_ASSIGN; + __entry->entry = msix_entry->entry; + __entry->defirq = defirq; + __entry->inta_fh = inta_fh; + __entry->inta_hw = inta_hw; + ), + TP_printk("entry:%d defirq:%d fh:0x%x, hw:0x%x", + __entry->entry, __entry->defirq, + __entry->inta_fh, __entry->inta_hw) +); + TRACE_EVENT(iwlwifi_dev_ict_read, TP_PROTO(const struct device *dev, u32 index, u32 value), TP_ARGS(dev, index, value), diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 1618a59a8a2f..351c4423125a 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -1391,6 +1391,8 @@ irqreturn_t iwl_pcie_irq_rx_msix_handler(int irq, void *dev_id) struct iwl_trans_pcie *trans_pcie = iwl_pcie_get_trans_pcie(entry); struct iwl_trans *trans = trans_pcie->trans; + trace_iwlwifi_dev_irq_msix(trans->dev, entry, false, 0, 0); + if (WARN_ON(entry->entry >= trans->num_rx_queues)) return IRQ_NONE; @@ -1932,6 +1934,8 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id) iwl_write32(trans, CSR_MSIX_HW_INT_CAUSES_AD, inta_hw); spin_unlock(&trans_pcie->irq_lock); + trace_iwlwifi_dev_irq_msix(trans->dev, entry, true, inta_fh, inta_hw); + if (unlikely(!(inta_fh | inta_hw))) { IWL_DEBUG_ISR(trans, "Ignore interrupt, inta == 0\n"); lock_map_release(&trans->sync_cmd_lockdep_map); |