Skip to content

Commit

Permalink
iwlwifi: mvm: add debugfs entry to trigger a dump as any time-point
Browse files Browse the repository at this point in the history
This is used for different tests collecting different types of
debug data from fw (e.g latency issues, hw issues etc).

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.20210131201908.0db829694810.I001f39d34ae46c87870d9bd94a4baaa3250578d1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
  • Loading branch information
Mordechay Goodstein authored and Luca Coelho committed Feb 5, 2021
1 parent 0d65ce9 commit 9dbb62a
Showing 1 changed file with 19 additions and 0 deletions.
19 changes: 19 additions & 0 deletions drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
Original file line number Diff line number Diff line change
Expand Up @@ -1349,6 +1349,24 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
return count;
}

static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
char *buf, size_t count,
loff_t *ppos)
{
u32 timepoint;

if (kstrtou32(buf, 0, &timepoint))
return -EINVAL;

if (timepoint == IWL_FW_INI_TIME_POINT_INVALID ||
timepoint >= IWL_FW_INI_TIME_POINT_NUM)
return -EINVAL;

iwl_dbg_tlv_time_point(&mvm->fwrt, timepoint, NULL);

return count;
}

#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
Expand Down Expand Up @@ -1786,6 +1804,7 @@ MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
(IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
Expand Down

0 comments on commit 9dbb62a

Please sign in to comment.