diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2020-12-10 00:16:43 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2020-12-10 01:16:03 +0300 |
| commit | 906d4eb84408a4bfd63eef0de4f1bd5262f73ac0 (patch) | |
| tree | 834747052065be2863116e6814b0019513e5717b /drivers/net/wireless/intel/iwlwifi/pcie/internal.h | |
| parent | b2ed841ed070ccbe908016537f429a3a8f0221bf (diff) | |
| download | linux-906d4eb84408a4bfd63eef0de4f1bd5262f73ac0.tar.xz | |
iwlwifi: support firmware reset handshake
There are some races in the hardware that can possibly lead to
a bus lockup later during a restart when we manage to kill the
firmware at a bad time (while it's accessing the bus).
To work around this, add support for a new handshake between
firmware and driver to ensure that the firmware is in a well-
known state before we kill it.
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.20201209231352.7756fcc9865c.I13de65e0ffcb4186dd4c1a465f66df2e98c9a947@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/internal.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/internal.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h index 309dec9d5a08..a528d3d99c5a 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h @@ -406,6 +406,10 @@ struct iwl_trans_pcie { void *base_rb_stts; dma_addr_t base_rb_stts_dma; + + bool fw_reset_handshake; + bool fw_reset_done; + wait_queue_head_t fw_reset_waitq; }; static inline struct iwl_trans_pcie * |