From f130bb75d8817c560b48c4d1a0e5279968a0859d Mon Sep 17 00:00:00 2001 From: Mordechay Goodstein Date: Thu, 13 Dec 2018 23:04:51 +0200 Subject: iwlwifi: add FW recovery flow Add new API and TLV for the ability to send commands in the beginning and end of reset flow. The full flow of recovery is: 1. While loading FW, get address (from the TLV) of target buffer to read in case of reset 2. If an error/assert happens read the address data from step 1. 3. Reset the HW and load the FW. 4. Send the data read in step 2. 5. Add station keys 6. Send notification to FW that reset flow is done. The main use of the recovery flow is for support in PN/SN recovery when offloaded Signed-off-by: Mordechay Goodstein Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/net/wireless/intel/iwlwifi/iwl-drv.c') diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index 784e07b648e6..91ec90e5eb67 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -1088,6 +1088,20 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, return -ENOMEM; break; } + case IWL_UCODE_TLV_FW_RECOVERY_INFO: { + struct { + __le32 buf_addr; + __le32 buf_size; + } *recov_info = (void *)tlv_data; + + if (tlv_len != sizeof(*recov_info)) + goto invalid_tlv_len; + capa->error_log_addr = + le32_to_cpu(recov_info->buf_addr); + capa->error_log_size = + le32_to_cpu(recov_info->buf_size); + } + break; case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: { struct iwl_umac_debug_addrs *dbg_ptrs = (void *)tlv_data; -- cgit v1.2.3