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iwlwifi: dbg: remove unsupported regions

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In case user requested to register an unsupported regions,
remove it from active list and trigger list, this saves operational
driver memory and run time at collecting debug data.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.a0cc944040e8.I3ae37547452b39f8040428c21ed47bdc67ae8f71@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Mordechay Goodstein 2021-02-10 14:29:16 +02:00 committed by Luca Coelho
parent 1c094e5e2b
commit beb44c0c40
3 changed files with 40 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/intel/iwlwifi/fw/dbg.c
View File

@ -2073,7 +2073,8 @@ static u32 iwl_dump_ini_info(struct iwl_fw_runtime *fwrt,
dump->umac_minor = cpu_to_le32(fwrt->dump.fw_ver.umac_minor);
dump->fw_mon_mode = cpu_to_le32(fwrt->trans->dbg.ini_dest);
dump->regions_mask = trigger->regions_mask;
dump->regions_mask = trigger->regions_mask &
~cpu_to_le64(fwrt->trans->dbg.unsupported_region_msk);
dump->build_tag_len = cpu_to_le32(sizeof(dump->build_tag));
memcpy(dump->build_tag, fwrt->fw->human_readable,
@ -2202,7 +2203,8 @@ static u32 iwl_dump_ini_trigger(struct iwl_fw_runtime *fwrt,
};
int i;
u32 size = 0;
u64 regions_mask = le64_to_cpu(trigger->regions_mask);
u64 regions_mask = le64_to_cpu(trigger->regions_mask) &
~(fwrt->trans->dbg.unsupported_region_msk);
BUILD_BUG_ON(sizeof(trigger->regions_mask) != sizeof(regions_mask));
BUILD_BUG_ON((sizeof(trigger->regions_mask) * BITS_PER_BYTE) <

36
drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
View File

@ -959,6 +959,7 @@ static void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt)
{
enum iwl_fw_ini_buffer_location *ini_dest = &fwrt->trans->dbg.ini_dest;
int ret, i;
u32 failed_alloc = 0;
if (*ini_dest != IWL_FW_INI_LOCATION_INVALID)
return;
@ -990,10 +991,43 @@ static void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt)
continue;
ret = iwl_dbg_tlv_alloc_fragments(fwrt, i);
if (ret)
if (ret) {
IWL_WARN(fwrt,
"WRT: Failed to allocate DRAM buffer for allocation id %d, ret=%d\n",
i, ret);
failed_alloc |= BIT(i);
}
}
if (!failed_alloc)
return;
for (i = 0; i < ARRAY_SIZE(fwrt->trans->dbg.active_regions) && failed_alloc; i++) {
struct iwl_fw_ini_region_tlv *reg;
struct iwl_ucode_tlv **active_reg =
&fwrt->trans->dbg.active_regions[i];
u32 reg_type;
if (!*active_reg)
continue;
reg = (void *)(*active_reg)->data;
reg_type = le32_to_cpu(reg->type);
if (reg_type != IWL_FW_INI_REGION_DRAM_BUFFER ||
!(BIT(le32_to_cpu(reg->dram_alloc_id)) & failed_alloc))
continue;
IWL_DEBUG_FW(fwrt,
"WRT: removing allocation id %d from region id %d\n",
le32_to_cpu(reg->dram_alloc_id), i);
failed_alloc &= ~le32_to_cpu(reg->dram_alloc_id);
fwrt->trans->dbg.unsupported_region_msk |= BIT(i);
kfree(*active_reg);
*active_reg = NULL;
}
}

1
drivers/net/wireless/intel/iwlwifi/iwl-trans.h
View File

@ -746,6 +746,7 @@ struct iwl_trans_debug {
bool hw_error;
enum iwl_fw_ini_buffer_location ini_dest;
u64 unsupported_region_msk;
struct iwl_ucode_tlv *active_regions[IWL_FW_INI_MAX_REGION_ID];
struct list_head debug_info_tlv_list;
struct iwl_dbg_tlv_time_point_data