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wifi: iwlwifi: mvm: add a debugfs for reading EMLSR blocking reasons

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Add a reading for all active EMLSR blocking reasons for testing
purposes.

Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240506095953.6d494a335e81.Ic0fa6a9636e3c1a3b1420e85e704a19d4a56e8d9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Yedidya Benshimol
2024-05-06 10:04:09 +03:00
committed by Johannes Berg
parent 05f10dad03
commit ff907d9744
3 changed files with 40 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+37 -4
View File
@@ -722,8 +722,41 @@ static ssize_t iwl_dbgfs_int_mlo_scan_write(struct ieee80211_vif *vif,
return ret ?: count;
}
static ssize_t iwl_dbgfs_block_esr_write(struct ieee80211_vif *vif, char *buf,
size_t count, loff_t *ppos)
static ssize_t iwl_dbgfs_esr_disable_reason_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_vif *vif = file->private_data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
unsigned long esr_mask;
char *buf;
int bufsz, pos, i;
ssize_t rv;
mutex_lock(&mvm->mutex);
esr_mask = mvmvif->esr_disable_reason;
mutex_unlock(&mvm->mutex);
bufsz = hweight32(esr_mask) * 32 + 40;
buf = kmalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos = scnprintf(buf, bufsz, "EMLSR state: '0x%lx'\nreasons:\n",
esr_mask);
for_each_set_bit(i, &esr_mask, BITS_PER_LONG)
pos += scnprintf(buf + pos, bufsz - pos, " - %s\n",
iwl_get_esr_state_string(BIT(i)));
rv = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return rv;
}
static ssize_t iwl_dbgfs_esr_disable_reason_write(struct ieee80211_vif *vif,
char *buf, size_t count,
loff_t *ppos)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
@@ -769,7 +802,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32);
MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff);
MVM_DEBUGFS_WRITE_FILE_OPS(int_mlo_scan, 32);
MVM_DEBUGFS_WRITE_FILE_OPS(block_esr, 32);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(esr_disable_reason, 32);
void iwl_mvm_vif_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
@@ -800,7 +833,7 @@ void iwl_mvm_vif_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
debugfs_create_bool("ftm_unprotected", 0200, mvmvif->dbgfs_dir,
&mvmvif->ftm_unprotected);
MVM_DEBUGFS_ADD_FILE_VIF(int_mlo_scan, mvmvif->dbgfs_dir, 0200);
MVM_DEBUGFS_ADD_FILE_VIF(block_esr, mvmvif->dbgfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE_VIF(esr_disable_reason, mvmvif->dbgfs_dir, 0600);
if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
mvmvif == mvm->bf_allowed_vif)
drivers/net/wireless/intel/iwlwifi/mvm/link.c
+1 -1
View File
@@ -22,7 +22,7 @@ static const char *const iwl_mvm_esr_states_names[] = {
HANDLE_ESR_REASONS(NAME_ENTRY)
};
static const char *iwl_get_esr_state_string(enum iwl_mvm_esr_state state)
const char *iwl_get_esr_state_string(enum iwl_mvm_esr_state state)
{
int offs = ilog2(state);
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+2
View File
@@ -385,6 +385,8 @@ enum iwl_mvm_esr_state {
#define IWL_MVM_BLOCK_ESR_REASONS 0xffff
const char *iwl_get_esr_state_string(enum iwl_mvm_esr_state state);
/**
* struct iwl_mvm_esr_exit - details of the last exit from EMLSR mode.
* @reason: The reason for the last exit from EMLSR.