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iwlwifi: mvm: add smem content to dump data 

In NICs that have SMEM - add its content to the dump data
for later debug.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Liad Kaufman 2014-12-02 11:16:04 +02:00 committed by Emmanuel Grumbach
parent 363039be5b
commit addfaada8f
4 changed files with 31 additions and 2 deletions
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8
drivers/net/wireless/iwlwifi/iwl-8000.c
View File

@ -81,9 +81,11 @@
#define IWL8000_NVM_VERSION 0x0a1d
#define IWL8000_TX_POWER_VERSION 0xffff /* meaningless */
/* DCCM offsets and lengths */
/* Memory offsets and lengths */
#define IWL8260_DCCM_OFFSET 0x800000
#define IWL8260_DCCM_LEN 0x18000
#define IWL8260_SMEM_OFFSET 0x400000
#define IWL8260_SMEM_LEN 0x68000
#define IWL8000_FW_PRE "iwlwifi-8000"
#define IWL8000_MODULE_FIRMWARE(api) \
@ -131,7 +133,9 @@ static const struct iwl_ht_params iwl8000_ht_params = {
.d0i3 = true, \
.non_shared_ant = ANT_A, \
.dccm_offset = IWL8260_DCCM_OFFSET, \
.dccm_len = IWL8260_DCCM_LEN
.dccm_len = IWL8260_DCCM_LEN, \
.smem_offset = IWL8260_SMEM_OFFSET, \
.smem_len = IWL8260_SMEM_LEN
const struct iwl_cfg iwl8260_2n_cfg = {
.name = "Intel(R) Dual Band Wireless N 8260",

4
drivers/net/wireless/iwlwifi/iwl-config.h
View File

@ -263,6 +263,8 @@ struct iwl_pwr_tx_backoff {
* station can receive in VHT
* @dccm_offset: offset from which DCCM begins
* @dccm_len: length of DCCM (including runtime stack CCM)
* @smem_offset: offset from which the SMEM begins
* @smem_len: the length of SMEM
*
* We enable the driver to be backward compatible wrt. hardware features.
* API differences in uCode shouldn't be handled here but through TLVs
@ -308,6 +310,8 @@ struct iwl_cfg {
unsigned int max_vht_ampdu_exponent;
const u32 dccm_offset;
const u32 dccm_len;
const u32 smem_offset;
const u32 smem_len;
};
/*

2
drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
View File

@ -82,6 +82,7 @@
* @IWL_FW_ERROR_DUMP_PRPH: range of periphery registers - there can be several
* sections like this in a single file.
* @IWL_FW_ERROR_DUMP_FH_REGS: range of FH registers
* @IWL_FW_ERROR_DUMP_SMEM:
*/
enum iwl_fw_error_dump_type {
IWL_FW_ERROR_DUMP_SRAM = 0,
@ -93,6 +94,7 @@ enum iwl_fw_error_dump_type {
IWL_FW_ERROR_DUMP_PRPH = 6,
IWL_FW_ERROR_DUMP_TXF = 7,
IWL_FW_ERROR_DUMP_FH_REGS = 8,
IWL_FW_ERROR_DUMP_SMEM = 9,
IWL_FW_ERROR_DUMP_MAX,
};

19
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View File

@ -774,9 +774,16 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
u32 file_len, rxf_len;
unsigned long flags;
int reg_val;
u32 smem_len = mvm->cfg->smem_len;
lockdep_assert_held(&mvm->mutex);
/* W/A for 8000 HW family A-step */
if (mvm->cfg->smem_len &&
mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP)
smem_len = 0x38000;
fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
if (!fw_error_dump)
return;
@ -806,6 +813,10 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
rxf_len +
sizeof(*dump_info);
/* Make room for the SMEM, if it exists */
if (smem_len)
file_len += sizeof(*dump_data) + smem_len;
dump_file = vzalloc(file_len);
if (!dump_file) {
kfree(fw_error_dump);
@ -856,6 +867,14 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
sram_len);
if (smem_len) {
dump_data = iwl_fw_error_next_data(dump_data);
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SMEM);
dump_data->len = cpu_to_le32(smem_len);
iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
dump_data->data, smem_len);
}
fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
fw_error_dump->op_mode_len = file_len;
if (fw_error_dump->trans_ptr)