From: Johannes Berg <johannes.berg@xxxxxxxxx>
There's another set of error tables on newer (Bz) hardware,
support finding and dumping those error tables if present.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/fw/dump.c | 68 +++++++++++++++++++
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 10 +++
.../net/wireless/intel/iwlwifi/iwl-trans.h | 4 ++
3 files changed, 82 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dump.c b/drivers/net/wireless/intel/iwlwifi/fw/dump.c
index 6c794f885d47..b90f1e9ce691 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dump.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dump.c
@@ -294,6 +294,72 @@ static void iwl_fwrt_dump_tcm_error_log(struct iwl_fw_runtime *fwrt, int idx)
table.sw_status[i], i);
}
+/*
+ * RCM error struct.
+ * Note: This structure is read from the device with IO accesses,
+ * and the reading already does the endian conversion. As it is
+ * read with u32-sized accesses, any members with a different size
+ * need to be ordered correctly though!
+ */
+struct iwl_rcm_error_event_table {
+ u32 valid;
+ u32 error_id;
+ u32 blink2;
+ u32 ilink1;
+ u32 ilink2;
+ u32 data1, data2, data3;
+ u32 logpc;
+ u32 frame_pointer;
+ u32 stack_pointer;
+ u32 msgid;
+ u32 isr;
+ u32 frame_hw_status;
+ u32 mbx_lmac_to_rcm_req;
+ u32 mbx_rcm_to_lmac_req;
+ u32 mh_ctl;
+ u32 mh_addr1_lo;
+ u32 mh_info;
+ u32 mh_err;
+ u32 reserved[3];
+} __packed; /* RCM_LOG_ERROR_TABLE_API_S_VER_1 */
+
+static void iwl_fwrt_dump_rcm_error_log(struct iwl_fw_runtime *fwrt, int idx)
+{
+ struct iwl_trans *trans = fwrt->trans;
+ struct iwl_rcm_error_event_table table = {};
+ u32 base = fwrt->trans->dbg.rcm_error_event_table[idx];
+ u32 flag = idx ? IWL_ERROR_EVENT_TABLE_RCM2 :
+ IWL_ERROR_EVENT_TABLE_RCM1;
+
+ if (!base || !(fwrt->trans->dbg.error_event_table_tlv_status & flag))
+ return;
+
+ iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
+
+ IWL_ERR(fwrt, "RCM%d status:\n", idx + 1);
+ IWL_ERR(fwrt, "0x%08X | error ID\n", table.error_id);
+ IWL_ERR(fwrt, "0x%08X | rcm branchlink2\n", table.blink2);
+ IWL_ERR(fwrt, "0x%08X | rcm interruptlink1\n", table.ilink1);
+ IWL_ERR(fwrt, "0x%08X | rcm interruptlink2\n", table.ilink2);
+ IWL_ERR(fwrt, "0x%08X | rcm data1\n", table.data1);
+ IWL_ERR(fwrt, "0x%08X | rcm data2\n", table.data2);
+ IWL_ERR(fwrt, "0x%08X | rcm data3\n", table.data3);
+ IWL_ERR(fwrt, "0x%08X | rcm log PC\n", table.logpc);
+ IWL_ERR(fwrt, "0x%08X | rcm frame pointer\n", table.frame_pointer);
+ IWL_ERR(fwrt, "0x%08X | rcm stack pointer\n", table.stack_pointer);
+ IWL_ERR(fwrt, "0x%08X | rcm msg ID\n", table.msgid);
+ IWL_ERR(fwrt, "0x%08X | rcm ISR status\n", table.isr);
+ IWL_ERR(fwrt, "0x%08X | frame HW status\n", table.frame_hw_status);
+ IWL_ERR(fwrt, "0x%08X | LMAC-to-RCM request mbox\n",
+ table.mbx_lmac_to_rcm_req);
+ IWL_ERR(fwrt, "0x%08X | RCM-to-LMAC request mbox\n",
+ table.mbx_rcm_to_lmac_req);
+ IWL_ERR(fwrt, "0x%08X | MAC header control\n", table.mh_ctl);
+ IWL_ERR(fwrt, "0x%08X | MAC header addr1 low\n", table.mh_addr1_lo);
+ IWL_ERR(fwrt, "0x%08X | MAC header info\n", table.mh_info);
+ IWL_ERR(fwrt, "0x%08X | MAC header error\n", table.mh_err);
+}
+
static void iwl_fwrt_dump_iml_error_log(struct iwl_fw_runtime *fwrt)
{
struct iwl_trans *trans = fwrt->trans;
@@ -376,7 +442,9 @@ void iwl_fwrt_dump_error_logs(struct iwl_fw_runtime *fwrt)
iwl_fwrt_dump_lmac_error_log(fwrt, 1);
iwl_fwrt_dump_umac_error_log(fwrt);
iwl_fwrt_dump_tcm_error_log(fwrt, 0);
+ iwl_fwrt_dump_rcm_error_log(fwrt, 0);
iwl_fwrt_dump_tcm_error_log(fwrt, 1);
+ iwl_fwrt_dump_rcm_error_log(fwrt, 1);
iwl_fwrt_dump_iml_error_log(fwrt);
iwl_fwrt_dump_fseq_regs(fwrt);
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 7d5c7deaae47..9652da2b8125 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -631,6 +631,16 @@ static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
drv->trans->dbg.error_event_table_tlv_status |=
IWL_ERROR_EVENT_TABLE_TCM2;
break;
+ case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
+ drv->trans->dbg.rcm_error_event_table[0] = addr;
+ drv->trans->dbg.error_event_table_tlv_status |=
+ IWL_ERROR_EVENT_TABLE_RCM1;
+ break;
+ case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
+ drv->trans->dbg.rcm_error_event_table[1] = addr;
+ drv->trans->dbg.error_event_table_tlv_status |=
+ IWL_ERROR_EVENT_TABLE_RCM2;
+ break;
default:
break;
}
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 3720801df118..b8428dc3b6d2 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -195,6 +195,8 @@ enum iwl_error_event_table_status {
IWL_ERROR_EVENT_TABLE_UMAC = BIT(2),
IWL_ERROR_EVENT_TABLE_TCM1 = BIT(3),
IWL_ERROR_EVENT_TABLE_TCM2 = BIT(4),
+ IWL_ERROR_EVENT_TABLE_RCM1 = BIT(5),
+ IWL_ERROR_EVENT_TABLE_RCM2 = BIT(6),
};
/**
@@ -730,6 +732,7 @@ struct iwl_self_init_dram {
* @lmac_error_event_table: addrs of lmacs error tables
* @umac_error_event_table: addr of umac error table
* @tcm_error_event_table: address(es) of TCM error table(s)
+ * @rcm_error_event_table: address(es) of RCM error table(s)
* @error_event_table_tlv_status: bitmap that indicates what error table
* pointers was recevied via TLV. uses enum &iwl_error_event_table_status
* @internal_ini_cfg: internal debug cfg state. Uses &enum iwl_ini_cfg_state
@@ -757,6 +760,7 @@ struct iwl_trans_debug {
u32 lmac_error_event_table[2];
u32 umac_error_event_table;
u32 tcm_error_event_table[2];
+ u32 rcm_error_event_table[2];
unsigned int error_event_table_tlv_status;
enum iwl_ini_cfg_state internal_ini_cfg;
--
2.34.1
