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iwlwifi: add more debug info in error event dump

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When sys assert happen, driver will dump the error table information
provided by uCode. There are more information available but is not being
display by the driver; adding program counter and last host command the
to log to help uCode debugging.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Wey-Yi Guy 2010-03-30 17:57:53 -07:00 committed by Reinette Chatre
parent 05d5752027
commit 461ef382fd
2 changed files with 32 additions and 5 deletions
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10
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -1843,6 +1843,7 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
u32 data2, line;
u32 desc, time, count, base, data1;
u32 blink1, blink2, ilink1, ilink2;
u32 pc, hcmd;
if (priv->ucode_type == UCODE_INIT)
base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
@ -1865,6 +1866,7 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
}
desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
pc = iwl_read_targ_mem(priv, base + 2 * sizeof(u32));
blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
@ -1873,6 +1875,7 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
hcmd = iwl_read_targ_mem(priv, base + 22 * sizeof(u32));
trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line,
blink1, blink2, ilink1, ilink2);
@ -1881,10 +1884,9 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
"data1 data2 line\n");
IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
desc_lookup(desc), desc, time, data1, data2, line);
IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n");
IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
ilink1, ilink2);
IWL_ERR(priv, "pc blink1 blink2 ilink1 ilink2 hcmd\n");
IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
pc, blink1, blink2, ilink1, ilink2, hcmd);
}
#define EVENT_START_OFFSET (4 * sizeof(u32))

27
drivers/net/wireless/iwlwifi/iwl-commands.h
View File

@ -512,8 +512,9 @@ struct iwl_init_alive_resp {
*
* Entries without timestamps contain only event_id and data.
*
*
* 2) error_event_table_ptr indicates base of the error log. This contains
* information about any uCode error that occurs. For 4965, the format
* information about any uCode error that occurs. For agn, the format
* of the error log is:
*
* __le32 valid; (nonzero) valid, (0) log is empty
@ -529,6 +530,30 @@ struct iwl_init_alive_resp {
* __le32 bcon_time; beacon timer
* __le32 tsf_low; network timestamp function timer
* __le32 tsf_hi; network timestamp function timer
* __le32 gp1; GP1 timer register
* __le32 gp2; GP2 timer register
* __le32 gp3; GP3 timer register
* __le32 ucode_ver; uCode version
* __le32 hw_ver; HW Silicon version
* __le32 brd_ver; HW board version
* __le32 log_pc; log program counter
* __le32 frame_ptr; frame pointer
* __le32 stack_ptr; stack pointer
* __le32 hcmd; last host command
* __le32 isr0; isr status register LMPM_NIC_ISR0: rxtx_flag
* __le32 isr1; isr status register LMPM_NIC_ISR1: host_flag
* __le32 isr2; isr status register LMPM_NIC_ISR2: enc_flag
* __le32 isr3; isr status register LMPM_NIC_ISR3: time_flag
* __le32 isr4; isr status register LMPM_NIC_ISR4: wico interrupt
* __le32 isr_pref; isr status register LMPM_NIC_PREF_STAT
* __le32 wait_event; wait event() caller address
* __le32 l2p_control; L2pControlField
* __le32 l2p_duration; L2pDurationField
* __le32 l2p_mhvalid; L2pMhValidBits
* __le32 l2p_addr_match; L2pAddrMatchStat
* __le32 lmpm_pmg_sel; indicate which clocks are turned on (LMPM_PMG_SEL)
* __le32 u_timestamp; indicate when the date and time of the compilation
* __le32 reserved;
*
* The Linux driver can print both logs to the system log when a uCode error
* occurs.