diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2020-12-09 23:16:43 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2020-12-10 00:16:03 +0200 |
| commit | 906d4eb84408a4bfd63eef0de4f1bd5262f73ac0 (patch) | |
| tree | 834747052065be2863116e6814b0019513e5717b /drivers/net/wireless/intel/iwlwifi/mvm/ops.c | |
| parent | b2ed841ed070ccbe908016537f429a3a8f0221bf (diff) | |
| download | linux-906d4eb84408a4bfd63eef0de4f1bd5262f73ac0.tar.bz2 | |
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/mvm/ops.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index 4d7a3ff06049..fc5e66bc7c58 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -728,6 +728,9 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, sizeof(mvm->hw->wiphy->fw_version), "%s", fw->fw_version); + trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); + /* Configure transport layer */ iwl_trans_configure(mvm->trans, &trans_cfg); |