2024-09-09 07:32:14 +00:00
|
|
|
From a381ac0aa281fdb0b41a39d8a2bc08fd88f6db92 Mon Sep 17 00:00:00 2001
|
|
|
|
|
From: Antoine Tenart <antoine.tenart@bootlin.com>
|
|
|
|
|
Date: Tue, 25 Feb 2020 16:32:37 +0100
|
|
|
|
|
Subject: [PATCH 1/3] net: phy: sfp: re-probe modules on DEV_UP event
|
|
|
|
|
|
|
|
|
|
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
|
|
|
|
|
---
|
|
|
|
|
drivers/net/phy/sfp.c | 7 +++++++
|
|
|
|
|
1 file changed, 7 insertions(+)
|
|
|
|
|
|
|
|
|
|
--- a/drivers/net/phy/sfp.c
|
|
|
|
|
+++ b/drivers/net/phy/sfp.c
|
2025-02-04 08:05:40 +00:00
|
|
|
@@ -1557,6 +1557,10 @@ static void sfp_hwmon_probe(struct work_
|
|
|
|
|
struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work);
|
|
|
|
|
int err;
|
|
|
|
|
|
|
|
|
|
+ /* Avoid duplicate hwmon devices when re-probing */
|
|
|
|
|
+ if (sfp->hwmon_dev)
|
|
|
|
|
+ return;
|
|
|
|
|
+
|
|
|
|
|
/* hwmon interface needs to access 16bit registers in atomic way to
|
|
|
|
|
* guarantee coherency of the diagnostic monitoring data. If it is not
|
|
|
|
|
* possible to guarantee coherency because EEPROM is broken in such way
|
|
|
|
|
@@ -2416,6 +2420,13 @@ static void sfp_sm_module(struct sfp *sf
|
2024-09-09 07:32:14 +00:00
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
+ /* Re-probe the SFP modules when an interface is brought up, as the MAC
|
|
|
|
|
+ * do not report its link status (This means Phylink wouldn't be
|
|
|
|
|
+ * triggered if the PHY had a link before a MAC is brought up).
|
|
|
|
|
+ */
|
|
|
|
|
+ if (event == SFP_E_DEV_UP && sfp->sm_mod_state == SFP_MOD_PRESENT)
|
|
|
|
|
+ sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
|
|
|
|
|
+
|
|
|
|
|
switch (sfp->sm_mod_state) {
|
|
|
|
|
default:
|
|
|
|
|
if (event == SFP_E_INSERT) {
|
