Next version of ath10k firmware crash dump feature, based on Ben's patches but
heavily modified.
v6:
* fix vzalloc(sizeof(ar->debug.fw_crash_data)), fixes the crash I saw (Ben)
* "Target Register Dump" -> "firmware register dump"
* add ath10k_print_driver_info()
* take timestamp at crash time instead of crash-dump-gather time (Ben)
* fix locking comment in struct ath10k::fw (Ben)
* move "crash_data->crashed_since_read = true" to
ath10k_debug_get_new_few_crash_data()
* ath10k_pci_hif_dump_area() holds the lock all the time so that we
can guarantee that changes to ath10k_fw_crash_data are atomic
* take data_lock earlier in ath10k_build_dump_file() so that all
access to crash_data is protected
* rename debugfs file fw_crash_dump
* fw_crash_dump debugfs files returns -ENODATA if there's no new
crash dump
* store bss addresses and lengths as u32 in struct ath10k::fw
v5:
* dump_data->tv_sec and tv_nsec to 64 bits (because long can be 32 bits
on some platforms)
* fix long lines
* renamed ath10k_dbg_save_fw_dbg_buffer() to ath10k_debug_dbglog_add()
* add helpers for ath10k_pci_diag* functions
* refactor and rename ath10k_pci_hif_dump_area()
* latest crash dump is always stored (instead of the oldest unread)
* add ath10k_debug_get_fw_crash_data()
* move fw_r?m_bss_* fields to ar->fw
* struct ath10k_fw_crash_data is allocated with vmalloc()
* atomic allocation in ath10k_pci_dump_bss() is bad, fix that by using vmalloc
in module initialisation
* separate FW IE entries for BSS regions
* don't use ath10k_err()
* simplify locking and memory allocation for FW IE handling
* add uuid
* move struct ath10k_dump_file_data and enum ath10k_fw_error_dump_type to debug.c
* function and variable naming, using ath10k_fw_crash_ prefix etc
* change warning and debug messages to follow ath10k style
* add ath10k_debug_get_new_fw_crash_data() to avoid ifdefs in pci.c
TODO for the future:
* atomic allocation in ath10k_pci_dump_dbglog() is bad. Should we
allocate a big buffer with vmalloc and use that?
* dynamic allocation for BSS buffers
---
Ben Greear (5):
ath10k: provide firmware crash info via debugfs
ath10k: save firmware debug log messages
ath10k: save firmware stack upon firmware crash
ath10k: dump exception stack contents on firmware crash
ath10k: save firmware RAM and ROM BSS sections on crash
Kalle Valo (3):
ath10k: add ath10k_pci_diag_* helpers
ath10k: rename ath10k_pci_hif_dump_area() to ath10k_pci_firmware_crashed()
ath10k: print more driver info when firmware crashes
drivers/net/wireless/ath/ath10k/core.c | 71 +++++-
drivers/net/wireless/ath/ath10k/core.h | 45 ++++
drivers/net/wireless/ath/ath10k/debug.c | 341 +++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/debug.h | 23 ++
drivers/net/wireless/ath/ath10k/hw.h | 36 +++
drivers/net/wireless/ath/ath10k/pci.c | 257 +++++++++++++++++++++--
drivers/net/wireless/ath/ath10k/pci.h | 3
drivers/net/wireless/ath/ath10k/wmi.c | 10 +
8 files changed, 743 insertions(+), 43 deletions(-)
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