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-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/api/alive.h20
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/api/commands.h5
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/file.h1
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/img.h2
-rw-r--r--drivers/net/wireless/intel/iwlwifi/iwl-drv.c14
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/fw.c54
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c2
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mvm.h2
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/ops.c18
9 files changed, 118 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/alive.h b/drivers/net/wireless/intel/iwlwifi/fw/api/alive.h
index 0026e259fd87..df1bd0d2450e 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/alive.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/alive.h
@@ -197,4 +197,24 @@ struct iwl_card_state_notif {
__le32 flags;
} __packed; /* CARD_STATE_NTFY_API_S_VER_1 */
+/**
+ * enum iwl_error_recovery_flags - flags for error recovery cmd
+ * @ERROR_RECOVERY_UPDATE_DB: update db from blob sent
+ * @ERROR_RECOVERY_END_OF_RECOVERY: end of recovery
+ */
+enum iwl_error_recovery_flags {
+ ERROR_RECOVERY_UPDATE_DB = BIT(0),
+ ERROR_RECOVERY_END_OF_RECOVERY = BIT(1),
+};
+
+/**
+ * struct iwl_fw_error_recovery_cmd - recovery cmd sent upon assert
+ * @flags: &enum iwl_error_recovery_flags
+ * @buf_size: db buffer size in bytes
+ */
+struct iwl_fw_error_recovery_cmd {
+ __le32 flags;
+ __le32 buf_size;
+} __packed; /* ERROR_RECOVERY_CMD_HDR_API_S_VER_1 */
+
#endif /* __iwl_fw_api_alive_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
index 0290b333d860..4d2274bcc0b5 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
@@ -643,6 +643,11 @@ enum iwl_system_subcmd_ids {
* @INIT_EXTENDED_CFG_CMD: &struct iwl_init_extended_cfg_cmd
*/
INIT_EXTENDED_CFG_CMD = 0x03,
+
+ /**
+ * @FW_ERROR_RECOVERY_CMD: &struct iwl_fw_error_recovery_cmd
+ */
+ FW_ERROR_RECOVERY_CMD = 0x7,
};
#endif /* __iwl_fw_api_commands_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index 886a620e03cf..3f61dc50c2d5 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -145,6 +145,7 @@ enum iwl_ucode_tlv_type {
IWL_UCODE_TLV_IML = 52,
IWL_UCODE_TLV_UMAC_DEBUG_ADDRS = 54,
IWL_UCODE_TLV_LMAC_DEBUG_ADDRS = 55,
+ IWL_UCODE_TLV_FW_RECOVERY_INFO = 57,
IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION = IWL_UCODE_INI_TLV_GROUP | 0x1,
IWL_UCODE_TLV_TYPE_HCMD = IWL_UCODE_INI_TLV_GROUP | 0x2,
IWL_UCODE_TLV_TYPE_REGIONS = IWL_UCODE_INI_TLV_GROUP | 0x3,
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/img.h b/drivers/net/wireless/intel/iwlwifi/fw/img.h
index 6ffa2e39a25c..f4c5a4d73206 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/img.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/img.h
@@ -105,6 +105,8 @@ struct iwl_ucode_capabilities {
u32 n_scan_channels;
u32 standard_phy_calibration_size;
u32 flags;
+ u32 error_log_addr;
+ u32 error_log_size;
unsigned long _api[BITS_TO_LONGS(NUM_IWL_UCODE_TLV_API)];
unsigned long _capa[BITS_TO_LONGS(NUM_IWL_UCODE_TLV_CAPA)];
};
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;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index cf7f8c340ffe..28ef204c9cf7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -976,6 +976,57 @@ int iwl_mvm_get_sar_geo_profile(struct iwl_mvm *mvm)
}
#endif /* CONFIG_ACPI */
+void iwl_mvm_send_recovery_cmd(struct iwl_mvm *mvm, u32 flags)
+{
+ u32 error_log_size = mvm->fw->ucode_capa.error_log_size;
+ int ret;
+ u32 resp;
+
+ struct iwl_fw_error_recovery_cmd recovery_cmd = {
+ .flags = cpu_to_le32(flags),
+ .buf_size = 0,
+ };
+ struct iwl_host_cmd host_cmd = {
+ .id = WIDE_ID(SYSTEM_GROUP, FW_ERROR_RECOVERY_CMD),
+ .flags = CMD_WANT_SKB,
+ .data = {&recovery_cmd, },
+ .len = {sizeof(recovery_cmd), },
+ };
+
+ /* no error log was defined in TLV */
+ if (!error_log_size)
+ return;
+
+ if (flags & ERROR_RECOVERY_UPDATE_DB) {
+ /* no buf was allocated while HW reset */
+ if (!mvm->error_recovery_buf)
+ return;
+
+ host_cmd.data[1] = mvm->error_recovery_buf;
+ host_cmd.len[1] = error_log_size;
+ host_cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
+ recovery_cmd.buf_size = cpu_to_le32(error_log_size);
+ }
+
+ ret = iwl_mvm_send_cmd(mvm, &host_cmd);
+ kfree(mvm->error_recovery_buf);
+ mvm->error_recovery_buf = NULL;
+
+ if (ret) {
+ IWL_ERR(mvm, "Failed to send recovery cmd %d\n", ret);
+ return;
+ }
+
+ /* skb respond is only relevant in ERROR_RECOVERY_UPDATE_DB */
+ if (flags & ERROR_RECOVERY_UPDATE_DB) {
+ resp = le32_to_cpu(*(__le32 *)host_cmd.resp_pkt->data);
+ if (resp)
+ IWL_ERR(mvm,
+ "Failed to send recovery cmd blob was invalid %d\n",
+ resp);
+ }
+}
+
static int iwl_mvm_sar_init(struct iwl_mvm *mvm)
{
int ret;
@@ -1212,6 +1263,9 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
+ if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
+ iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_UPDATE_DB);
+
ret = iwl_mvm_sar_init(mvm);
if (ret == 0) {
ret = iwl_mvm_sar_geo_init(mvm);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 9377fca39edf..c02559766712 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1326,6 +1326,8 @@ static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
/* allow transport/FW low power modes */
iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
+ iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
+
/*
* If we have TDLS peers, remove them. We don't know the last seqno/PN
* of packets the FW sent out, so we must reconnect.
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 0255157378db..c70fc90680af 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1014,6 +1014,7 @@ struct iwl_mvm {
/* -1 for always, 0 for never, >0 for that many times */
s8 fw_restart;
+ u8 *error_recovery_buf;
#ifdef CONFIG_IWLWIFI_LEDS
struct led_classdev led;
@@ -1657,6 +1658,7 @@ void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
void iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_mfu_assert_dump_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb);
+void iwl_mvm_send_recovery_cmd(struct iwl_mvm *mvm, u32 flags);
void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 0c276124bf0f..f8a5a7074dc1 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -422,6 +422,7 @@ static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
HCMD_NAME(SHARED_MEM_CFG_CMD),
HCMD_NAME(INIT_EXTENDED_CFG_CMD),
+ HCMD_NAME(FW_ERROR_RECOVERY_CMD),
};
/* Please keep this array *SORTED* by hex value.
@@ -921,6 +922,9 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
kfree(mvm->mcast_filter_cmd);
mvm->mcast_filter_cmd = NULL;
+ kfree(mvm->error_recovery_buf);
+ mvm->error_recovery_buf = NULL;
+
#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
kfree(mvm->d3_resume_sram);
#endif
@@ -1301,6 +1305,20 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
/* don't let the transport/FW power down */
iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
+ if (mvm->fw->ucode_capa.error_log_size) {
+ u32 src_size = mvm->fw->ucode_capa.error_log_size;
+ u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
+ u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
+
+ if (recover_buf) {
+ mvm->error_recovery_buf = recover_buf;
+ iwl_trans_read_mem_bytes(mvm->trans,
+ src_addr,
+ recover_buf,
+ src_size);
+ }
+ }
+
if (fw_error && mvm->fw_restart > 0)
mvm->fw_restart--;
set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-01 08:43:43 +0000