openwrt/target/linux/generic/backport-4.19/711-v5.3-net-sfp-add-mandatory-attach-detach-methods-for-sfp-.patch
Hauke Mehrtens fdac05b741 kernel: Update kernel 4.19 to version 4.19.138
Compile and run tested on lantiq/xrx200

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-08-10 19:34:37 +02:00

95 lines
3.1 KiB
Diff

From aeabfaa63285470e81fa341e14f92d68880aa160 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 28 May 2019 10:57:34 +0100
Subject: [PATCH 609/660] net: sfp: add mandatory attach/detach methods for sfp
buses
Add attach and detach methods for SFP buses, which will allow us to get
rid of the netdev storage in sfp-bus.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/phylink.c | 16 ++++++++++++++++
drivers/net/phy/sfp-bus.c | 4 ++--
include/linux/sfp.h | 6 ++++++
3 files changed, 24 insertions(+), 2 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1615,6 +1615,20 @@ int phylink_mii_ioctl(struct phylink *pl
}
EXPORT_SYMBOL_GPL(phylink_mii_ioctl);
+static void phylink_sfp_attach(void *upstream, struct sfp_bus *bus)
+{
+ struct phylink *pl = upstream;
+
+ pl->netdev->sfp_bus = bus;
+}
+
+static void phylink_sfp_detach(void *upstream, struct sfp_bus *bus)
+{
+ struct phylink *pl = upstream;
+
+ pl->netdev->sfp_bus = NULL;
+}
+
static int phylink_sfp_module_insert(void *upstream,
const struct sfp_eeprom_id *id)
{
@@ -1733,6 +1747,8 @@ static void phylink_sfp_disconnect_phy(v
}
static const struct sfp_upstream_ops sfp_phylink_ops = {
+ .attach = phylink_sfp_attach,
+ .detach = phylink_sfp_detach,
.module_insert = phylink_sfp_module_insert,
.link_up = phylink_sfp_link_up,
.link_down = phylink_sfp_link_down,
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -425,7 +425,7 @@ static int sfp_register_bus(struct sfp_b
bus->socket_ops->attach(bus->sfp);
if (bus->started)
bus->socket_ops->start(bus->sfp);
- bus->netdev->sfp_bus = bus;
+ bus->upstream_ops->attach(bus->upstream, bus);
bus->registered = true;
return 0;
}
@@ -434,8 +434,8 @@ static void sfp_unregister_bus(struct sf
{
const struct sfp_upstream_ops *ops = bus->upstream_ops;
- bus->netdev->sfp_bus = NULL;
if (bus->registered) {
+ bus->upstream_ops->detach(bus->upstream, bus);
if (bus->started)
bus->socket_ops->stop(bus->sfp);
bus->socket_ops->detach(bus->sfp);
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -469,6 +469,10 @@ struct sfp_bus;
/**
* struct sfp_upstream_ops - upstream operations structure
+ * @attach: called when the sfp socket driver is bound to the upstream
+ * (mandatory).
+ * @detach: called when the sfp socket driver is unbound from the upstream
+ * (mandatory).
* @module_insert: called after a module has been detected to determine
* whether the module is supported for the upstream device.
* @module_remove: called after the module has been removed.
@@ -481,6 +485,8 @@ struct sfp_bus;
* been removed.
*/
struct sfp_upstream_ops {
+ void (*attach)(void *priv, struct sfp_bus *bus);
+ void (*detach)(void *priv, struct sfp_bus *bus);
int (*module_insert)(void *priv, const struct sfp_eeprom_id *id);
void (*module_remove)(void *priv);
void (*link_down)(void *priv);