mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-08-30 13:23:02 -04:00
Code Issues Packages Projects Releases Wiki Activity

wifi: carl9170: rx: track PHY errors via debugfs

Browse Source 
Count PHY errors reported by the hardware in the RX status and
expose the counter through debugfs as rx_phy_errors.  Previously,
PHY errors from ar9170_rx_phystatus were silently ignored (marked
with a TODO comment).

The counter helps diagnose RF environment issues (interference,
multipath, low SNR) without requiring monitor mode or additional
tooling.

Signed-off-by: Masi Osmani <mas-i@hotmail.de>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Link: https://patch.msgid.link/AM7PPF5613FA0B6B42814E38096301FE9429444A@AM7PPF5613FA0B6.EURP251.PROD.OUTLOOK.COM
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Masi Osmani
2026-03-12 11:38:00 +01:00
committed by Jeff Johnson
parent a711bf00b8
commit 2ac1d4de8e
3 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/ath/carl9170/carl9170.h
View File

@@ -381,6 +381,7 @@ struct ar9170 {
unsigned int tx_ack_failures;
unsigned int tx_fcs_errors;
unsigned int rx_dropped;
unsigned int rx_phy_errors;
/* EEPROM */
struct ar9170_eeprom eeprom;

2
drivers/net/wireless/ath/carl9170/debug.c
View File

@@ -794,6 +794,7 @@ DEBUGFS_READONLY_FILE(tx_janitor_last_run, 64, "last run:%d ms ago",
DEBUGFS_READONLY_FILE(tx_dropped, 20, "%d", ar->tx_dropped);
DEBUGFS_READONLY_FILE(rx_dropped, 20, "%d", ar->rx_dropped);
DEBUGFS_READONLY_FILE(rx_phy_errors, 20, "%d", ar->rx_phy_errors);
DEBUGFS_READONLY_FILE(sniffer_enabled, 20, "%d", ar->sniffer_enabled);
DEBUGFS_READONLY_FILE(rx_software_decryption, 20, "%d",
@@ -830,6 +831,7 @@ void carl9170_debugfs_register(struct ar9170 *ar)
DEBUGFS_ADD(tx_ampdu_list_len);
DEBUGFS_ADD(rx_dropped);
DEBUGFS_ADD(rx_phy_errors);
DEBUGFS_ADD(sniffer_enabled);
DEBUGFS_ADD(rx_software_decryption);

4
drivers/net/wireless/ath/carl9170/rx.c
View File

@@ -455,7 +455,9 @@ static void carl9170_rx_phy_status(struct ar9170 *ar,
if (phy->rssi[i] & 0x80)
phy->rssi[i] = ((~phy->rssi[i] & 0x7f) + 1) & 0x7f;
/* TODO: we could do something with phy_errors */
if (phy->phy_err)
ar->rx_phy_errors++;
status->signal = ar->noise[0] + phy->rssi_combined;
}