diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2025-04-30 15:23:14 +0300 |
|---|---|---|
| committer | Miri Korenblit <miriam.rachel.korenblit@intel.com> | 2025-05-06 20:22:58 +0300 |
| commit | 822c7bd5ef25017883f99e120f2145320ddb8750 (patch) | |
| tree | f2e3df40efc9fbf5fbacb4435408eff653b34c79 /drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h | |
| parent | b2d98a6cee3ae02a681f8cae01161ff803001e69 (diff) | |
wifi: iwlwifi: implement TOP reset follower
For the upcoming SC hardware, a new reset mode "(silent) TOP
reset" will be available. When BT initiates that reset, it'll
negotiate with the WiFi firmware which makes it appear to the
driver as the reset interrupt. To distinguish it from all the
other reasons for the reset interrupt, there's (now) a status
field in CSR 0x110.
Implement the part of TOP reset where we react to BT doing it.
This requires disambiguating the interrupt, depending on the
state of the device, since we can even get TOP reset from BT
while waiting for the reset handshake.
If TOP reset is done by BT while we're not trying to do reset
anyway, then simply reprobe, since we cannot keep the state
of the device as it's being reset, after waiting the needed
180ms to let the device reset/settle.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250430151952.fb86bfbdca40.Ibe40bf54003e3f8929b671324a395e76eb64a4d8@changeid
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h index 34eca1a568ea..6bccb30c0981 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* - * Copyright (C) 2005-2014, 2018-2021, 2024 Intel Corporation + * Copyright (C) 2005-2014, 2018-2021, 2024-2025 Intel Corporation * Copyright (C) 2013-2014 Intel Mobile Communications GmbH * Copyright (C) 2015 Intel Deutschland GmbH */ @@ -52,12 +52,14 @@ struct iwl_cfg; * any debug collection must happen synchronously as * the device will be shut down * @IWL_ERR_TYPE_CMD_QUEUE_FULL: command queue was full + * @IWL_ERR_TYPE_TOP_RESET_BY_BT: TOP reset initiated by BT */ enum iwl_fw_error_type { IWL_ERR_TYPE_IRQ, IWL_ERR_TYPE_NMI_FORCED, IWL_ERR_TYPE_RESET_HS_TIMEOUT, IWL_ERR_TYPE_CMD_QUEUE_FULL, + IWL_ERR_TYPE_TOP_RESET_BY_BT, }; /** @@ -242,6 +244,9 @@ static inline void iwl_op_mode_dump_error(struct iwl_op_mode *op_mode, { might_sleep(); + if (WARN_ON(mode->type == IWL_ERR_TYPE_TOP_RESET_BY_BT)) + return; + if (op_mode->ops->dump_error) op_mode->ops->dump_error(op_mode, mode); } |