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iwlwifi: dbg_ini: support domain changing via debugfs

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Allow to change or read the debug domain bitmap at runtime via
fw_dbg_domain debugfs.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Shahar S Matityahu 2019-07-24 18:52:23 +03:00 committed by Luca Coelho
parent 60e8abd9d3
commit 068893b7a2
2 changed files with 40 additions and 0 deletions
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35
drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
View File

@ -320,10 +320,45 @@ out:
FWRT_DEBUGFS_WRITE_FILE_OPS(send_hcmd, 512);
static ssize_t iwl_dbgfs_fw_dbg_domain_write(struct iwl_fw_runtime *fwrt,
char *buf, size_t count)
{
u32 new_domain;
int ret;
if (!iwl_trans_fw_running(fwrt->trans))
return -EIO;
ret = kstrtou32(buf, 0, &new_domain);
if (ret)
return ret;
if (new_domain != fwrt->trans->dbg.domains_bitmap) {
ret = iwl_dbg_tlv_gen_active_trigs(fwrt, new_domain);
if (ret)
return ret;
iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
NULL);
}
return count;
}
static ssize_t iwl_dbgfs_fw_dbg_domain_read(struct iwl_fw_runtime *fwrt,
size_t size, char *buf)
{
return scnprintf(buf, size, "0x%08x\n",
fwrt->trans->dbg.domains_bitmap);
}
FWRT_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_domain, 20);
void iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
struct dentry *dbgfs_dir)
{
INIT_DELAYED_WORK(&fwrt->timestamp.wk, iwl_fw_timestamp_marker_wk);
FWRT_DEBUGFS_ADD_FILE(timestamp_marker, dbgfs_dir, 0200);
FWRT_DEBUGFS_ADD_FILE(send_hcmd, dbgfs_dir, 0200);
FWRT_DEBUGFS_ADD_FILE(fw_dbg_domain, dbgfs_dir, 0600);
}

5
drivers/net/wireless/intel/iwlwifi/iwl-trans.h
View File

@ -1249,6 +1249,11 @@ static inline void iwl_trans_fw_error(struct iwl_trans *trans)
iwl_op_mode_nic_error(trans->op_mode);
}
static inline bool iwl_trans_fw_running(struct iwl_trans *trans)
{
return trans->state == IWL_TRANS_FW_ALIVE;
}
static inline void iwl_trans_sync_nmi(struct iwl_trans *trans)
{
if (trans->ops->sync_nmi)