mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 14:13:16 +00:00
2bf9ea6a31
Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
178 lines
4.6 KiB
Diff
178 lines
4.6 KiB
Diff
From: Russell King <rmk+kernel@arm.linux.org.uk>
|
|
Date: Thu, 24 Sep 2015 11:01:13 +0100
|
|
Subject: [PATCH] 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>
|
|
|
|
- rework phylink_set_link_*(), combining into a single function.
|
|
---
|
|
|
|
--- 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;
|
|
@@ -375,12 +381,20 @@ struct phylink *phylink_create(struct ne
|
|
phylink_init_advert(pl, pl->link_an_mode, pl->supported,
|
|
pl->link_config.advertising);
|
|
|
|
+ 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);
|
|
}
|
|
@@ -900,4 +914,93 @@ 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);
|
|
+
|
|
+int phylink_set_link(struct phylink *pl, unsigned int mode, u8 port,
|
|
+ const unsigned long *support)
|
|
+{
|
|
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(mask);
|
|
+ int ret = 0;
|
|
+
|
|
+ netdev_dbg(pl->netdev, "requesting link mode %s with support %*pb\n",
|
|
+ phylink_an_mode_str(mode),
|
|
+ __ETHTOOL_LINK_MODE_MASK_NBITS, support);
|
|
+
|
|
+ if (mode == MLO_AN_FIXED)
|
|
+ return -EINVAL;
|
|
+
|
|
+ linkmode_copy(mask, support);
|
|
+
|
|
+ /* Ignore errors if we're expecting a PHY to attach later */
|
|
+ ret = phylink_validate_support(pl, mode, mask);
|
|
+ if (ret && mode != MLO_AN_PHY)
|
|
+ return ret;
|
|
+
|
|
+ mutex_lock(&pl->config_mutex);
|
|
+ if (mode == MLO_AN_8023Z && pl->phydev) {
|
|
+ ret = -EINVAL;
|
|
+ } else {
|
|
+ bool changed = !bitmap_equal(pl->supported, mask,
|
|
+ __ETHTOOL_LINK_MODE_MASK_NBITS);
|
|
+ if (changed) {
|
|
+ linkmode_copy(pl->supported, mask);
|
|
+
|
|
+ phylink_init_advert(pl, mode, mask,
|
|
+ pl->link_config.advertising);
|
|
+ }
|
|
+
|
|
+ if (pl->link_an_mode != mode) {
|
|
+ pl->link_an_mode = mode;
|
|
+
|
|
+ changed = true;
|
|
+
|
|
+ netdev_info(pl->netdev, "switched to %s link mode\n",
|
|
+ phylink_an_mode_str(mode));
|
|
+ }
|
|
+
|
|
+ pl->link_port = port;
|
|
+
|
|
+ if (changed && !test_bit(PHYLINK_DISABLE_STOPPED,
|
|
+ &pl->phylink_disable_state))
|
|
+ phylink_mac_config(pl, &pl->link_config);
|
|
+ }
|
|
+ mutex_unlock(&pl->config_mutex);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(phylink_set_link);
|
|
+
|
|
+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
|
|
@@ -88,6 +88,12 @@ int phylink_ethtool_ksettings_set(struct
|
|
const struct ethtool_link_ksettings *);
|
|
int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
|
|
|
|
+int phylink_set_link(struct phylink *pl, unsigned int mode, u8 port,
|
|
+ const unsigned long *support);
|
|
+void phylink_disable(struct phylink *pl);
|
|
+void phylink_enable(struct phylink *pl);
|
|
+struct phylink *phylink_lookup_by_netdev(struct net_device *ndev);
|
|
+
|
|
#define phylink_zero(bm) \
|
|
bitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)
|
|
#define __phylink_do_bit(op, bm, mode) \
|