You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
4.2 KiB
156 lines
4.2 KiB
From 0a0c4b3dd4f34df4532f254a5940b520015d766f Mon Sep 17 00:00:00 2001
|
|
From: Russell King <rmk+kernel@arm.linux.org.uk>
|
|
Date: Thu, 24 Sep 2015 11:01:13 +0100
|
|
Subject: [PATCH 719/744] phylink: add hooks for SFP support
|
|
|
|
Add support to phylink for SFP, which needs to control and configure
|
|
the ethernet MAC link state. Specifically, SFP needs to:
|
|
|
|
1. set the negotiation mode between SGMII and 1000base-X
|
|
2. attach and detach the module PHY
|
|
3. prevent the link coming up when errors are reported
|
|
|
|
In the absence of a PHY, we also need to set the ethtool port type
|
|
according to the module plugged in.
|
|
|
|
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
|
---
|
|
drivers/net/phy/phylink.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++
|
|
include/linux/phylink.h | 6 ++++
|
|
2 files changed, 88 insertions(+)
|
|
|
|
--- a/drivers/net/phy/phylink.c
|
|
+++ b/drivers/net/phy/phylink.c
|
|
@@ -11,6 +11,7 @@
|
|
#include <linux/ethtool.h>
|
|
#include <linux/export.h>
|
|
#include <linux/gpio/consumer.h>
|
|
+#include <linux/list.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_mdio.h>
|
|
@@ -29,11 +30,16 @@
|
|
(ADVERTISED_TP | ADVERTISED_MII | ADVERTISED_FIBRE | \
|
|
ADVERTISED_BNC | ADVERTISED_AUI | ADVERTISED_Backplane)
|
|
|
|
+static LIST_HEAD(phylinks);
|
|
+static DEFINE_MUTEX(phylink_mutex);
|
|
+
|
|
enum {
|
|
PHYLINK_DISABLE_STOPPED,
|
|
+ PHYLINK_DISABLE_LINK,
|
|
};
|
|
|
|
struct phylink {
|
|
+ struct list_head node;
|
|
struct net_device *netdev;
|
|
const struct phylink_mac_ops *ops;
|
|
struct mutex config_mutex;
|
|
@@ -341,12 +347,20 @@ struct phylink *phylink_create(struct ne
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
+ mutex_lock(&phylink_mutex);
|
|
+ list_add_tail(&pl->node, &phylinks);
|
|
+ mutex_unlock(&phylink_mutex);
|
|
+
|
|
return pl;
|
|
}
|
|
EXPORT_SYMBOL_GPL(phylink_create);
|
|
|
|
void phylink_destroy(struct phylink *pl)
|
|
{
|
|
+ mutex_lock(&phylink_mutex);
|
|
+ list_del(&pl->node);
|
|
+ mutex_unlock(&phylink_mutex);
|
|
+
|
|
cancel_work_sync(&pl->resolve);
|
|
kfree(pl);
|
|
}
|
|
@@ -813,4 +827,72 @@ int phylink_mii_ioctl(struct phylink *pl
|
|
}
|
|
EXPORT_SYMBOL_GPL(phylink_mii_ioctl);
|
|
|
|
+
|
|
+
|
|
+void phylink_disable(struct phylink *pl)
|
|
+{
|
|
+ set_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state);
|
|
+ flush_work(&pl->resolve);
|
|
+
|
|
+ netif_carrier_off(pl->netdev);
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(phylink_disable);
|
|
+
|
|
+void phylink_enable(struct phylink *pl)
|
|
+{
|
|
+ clear_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state);
|
|
+ phylink_run_resolve(pl);
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(phylink_enable);
|
|
+
|
|
+void phylink_set_link_port(struct phylink *pl, u32 support, u8 port)
|
|
+{
|
|
+ WARN_ON(support & ~SUPPORTED_INTERFACES);
|
|
+
|
|
+ mutex_lock(&pl->config_mutex);
|
|
+ pl->link_port_support = support;
|
|
+ pl->link_port = port;
|
|
+ mutex_unlock(&pl->config_mutex);
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(phylink_set_link_port);
|
|
+
|
|
+int phylink_set_link_an_mode(struct phylink *pl, unsigned int mode)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ mutex_lock(&pl->config_mutex);
|
|
+ if (pl->link_an_mode != mode) {
|
|
+ ret = phylink_get_support(pl, mode);
|
|
+ if (ret == 0) {
|
|
+ if (!test_bit(PHYLINK_DISABLE_STOPPED,
|
|
+ &pl->phylink_disable_state))
|
|
+ phylink_mac_config(pl, &pl->link_config);
|
|
+
|
|
+ netdev_info(pl->netdev, "switched to %s link mode\n",
|
|
+ phylink_an_mode_str(mode));
|
|
+ }
|
|
+ }
|
|
+ mutex_unlock(&pl->config_mutex);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(phylink_set_link_an_mode);
|
|
+
|
|
+struct phylink *phylink_lookup_by_netdev(struct net_device *ndev)
|
|
+{
|
|
+ struct phylink *pl, *found = NULL;
|
|
+
|
|
+ mutex_lock(&phylink_mutex);
|
|
+ list_for_each_entry(pl, &phylinks, node)
|
|
+ if (pl->netdev == ndev) {
|
|
+ found = pl;
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ mutex_unlock(&phylink_mutex);
|
|
+
|
|
+ return found;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(phylink_lookup_by_netdev);
|
|
+
|
|
MODULE_LICENSE("GPL");
|
|
--- a/include/linux/phylink.h
|
|
+++ b/include/linux/phylink.h
|
|
@@ -67,4 +67,10 @@ int phylink_ethtool_get_settings(struct
|
|
int phylink_ethtool_set_settings(struct phylink *, struct ethtool_cmd *);
|
|
int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
|
|
|
|
+void phylink_set_link_port(struct phylink *pl, u32 support, u8 port);
|
|
+int phylink_set_link_an_mode(struct phylink *pl, unsigned int mode);
|
|
+void phylink_disable(struct phylink *pl);
|
|
+void phylink_enable(struct phylink *pl);
|
|
+struct phylink *phylink_lookup_by_netdev(struct net_device *ndev);
|
|
+
|
|
#endif
|
|
|