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Message-Id: <E1eKiUc-0004yW-TB@rmk-PC.armlinux.org.uk>
Date: Fri, 01 Dec 2017 10:24:26 +0000
From: Russell King <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
Jonathan Corbet <corbet@....net>
Cc: linux-doc@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 03/11] phylink: get rid of separate Cisco SGMII and 802.3z
modes
Since the handling of SGMII and 802.3z is now the same, combine the
MLO_AN_xxx constants into a single MLO_AN_INBAND, and use the PHY
interface mode to distinguish between Cisco SGMII and 802.3z.
Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
---
drivers/net/phy/phylink.c | 39 ++++++++++++++-------------------------
include/linux/phylink.h | 19 +++++++------------
2 files changed, 21 insertions(+), 37 deletions(-)
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index d7006fdc8f71..34ecdb892f57 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -117,8 +117,7 @@ static const char *phylink_an_mode_str(unsigned int mode)
static const char *modestr[] = {
[MLO_AN_PHY] = "phy",
[MLO_AN_FIXED] = "fixed",
- [MLO_AN_SGMII] = "SGMII",
- [MLO_AN_8023Z] = "802.3z",
+ [MLO_AN_INBAND] = "inband",
};
return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown";
@@ -244,6 +243,7 @@ static int phylink_parse_mode(struct phylink *pl, struct device_node *np)
phylink_set(pl->supported, Asym_Pause);
phylink_set(pl->supported, Pause);
pl->link_config.an_enabled = true;
+ pl->link_an_mode = MLO_AN_INBAND;
switch (pl->link_config.interface) {
case PHY_INTERFACE_MODE_SGMII:
@@ -253,17 +253,14 @@ static int phylink_parse_mode(struct phylink *pl, struct device_node *np)
phylink_set(pl->supported, 100baseT_Full);
phylink_set(pl->supported, 1000baseT_Half);
phylink_set(pl->supported, 1000baseT_Full);
- pl->link_an_mode = MLO_AN_SGMII;
break;
case PHY_INTERFACE_MODE_1000BASEX:
phylink_set(pl->supported, 1000baseX_Full);
- pl->link_an_mode = MLO_AN_8023Z;
break;
case PHY_INTERFACE_MODE_2500BASEX:
phylink_set(pl->supported, 2500baseX_Full);
- pl->link_an_mode = MLO_AN_8023Z;
break;
case PHY_INTERFACE_MODE_10GKR:
@@ -280,7 +277,6 @@ static int phylink_parse_mode(struct phylink *pl, struct device_node *np)
phylink_set(pl->supported, 10000baseLR_Full);
phylink_set(pl->supported, 10000baseLRM_Full);
phylink_set(pl->supported, 10000baseER_Full);
- pl->link_an_mode = MLO_AN_SGMII;
break;
default:
@@ -422,8 +418,7 @@ static void phylink_resolve(struct work_struct *w)
phylink_mac_config(pl, &link_state);
break;
- case MLO_AN_SGMII:
- case MLO_AN_8023Z:
+ case MLO_AN_INBAND:
phylink_get_mac_state(pl, &link_state);
if (pl->phydev) {
bool changed = false;
@@ -654,7 +649,8 @@ int phylink_connect_phy(struct phylink *pl, struct phy_device *phy)
int ret;
if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED ||
- pl->link_an_mode == MLO_AN_8023Z))
+ (pl->link_an_mode == MLO_AN_INBAND &&
+ phy_interface_mode_is_8023z(pl->link_interface))))
return -EINVAL;
ret = phy_attach_direct(pl->netdev, phy, 0, pl->link_interface);
@@ -677,7 +673,8 @@ int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn)
/* Fixed links and 802.3z are handled without needing a PHY */
if (pl->link_an_mode == MLO_AN_FIXED ||
- pl->link_an_mode == MLO_AN_8023Z)
+ (pl->link_an_mode == MLO_AN_INBAND &&
+ phy_interface_mode_is_8023z(pl->link_interface)))
return 0;
phy_node = of_parse_phandle(dn, "phy-handle", 0);
@@ -851,8 +848,7 @@ int phylink_ethtool_ksettings_get(struct phylink *pl,
phylink_get_ksettings(&link_state, kset);
break;
- case MLO_AN_SGMII:
- case MLO_AN_8023Z:
+ case MLO_AN_INBAND:
/* If there is a phy attached, then use the reported
* settings from the phy with no modification.
*/
@@ -1029,8 +1025,7 @@ int phylink_ethtool_set_pauseparam(struct phylink *pl,
phylink_mac_config(pl, config);
break;
- case MLO_AN_SGMII:
- case MLO_AN_8023Z:
+ case MLO_AN_INBAND:
phylink_mac_config(pl, config);
phylink_mac_an_restart(pl);
break;
@@ -1247,9 +1242,7 @@ static int phylink_mii_read(struct phylink *pl, unsigned int phy_id,
case MLO_AN_PHY:
return -EOPNOTSUPP;
- case MLO_AN_SGMII:
- /* No phy, fall through to 8023z method */
- case MLO_AN_8023Z:
+ case MLO_AN_INBAND:
if (phy_id == 0) {
val = phylink_get_mac_state(pl, &state);
if (val < 0)
@@ -1274,9 +1267,7 @@ static int phylink_mii_write(struct phylink *pl, unsigned int phy_id,
case MLO_AN_PHY:
return -EOPNOTSUPP;
- case MLO_AN_SGMII:
- /* No phy, fall through to 8023z method */
- case MLO_AN_8023Z:
+ case MLO_AN_INBAND:
break;
}
@@ -1291,7 +1282,7 @@ int phylink_mii_ioctl(struct phylink *pl, struct ifreq *ifr, int cmd)
WARN_ON(!lockdep_rtnl_is_held());
if (pl->phydev) {
- /* PHYs only exist for MLO_AN_PHY and MLO_AN_SGMII */
+ /* PHYs only exist for MLO_AN_PHY and SGMII */
switch (cmd) {
case SIOCGMIIPHY:
mii->phy_id = pl->phydev->mdio.addr;
@@ -1360,10 +1351,8 @@ static int phylink_sfp_module_insert(void *upstream,
switch (iface) {
case PHY_INTERFACE_MODE_SGMII:
- mode = MLO_AN_SGMII;
- break;
case PHY_INTERFACE_MODE_1000BASEX:
- mode = MLO_AN_8023Z;
+ mode = MLO_AN_INBAND;
break;
default:
return -EINVAL;
@@ -1390,7 +1379,7 @@ static int phylink_sfp_module_insert(void *upstream,
phylink_an_mode_str(mode), phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support);
- if (mode == MLO_AN_8023Z && pl->phydev)
+ if (phy_interface_mode_is_8023z(iface) && pl->phydev)
return -EINVAL;
changed = !bitmap_equal(pl->supported, support,
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index af67edd4ae38..cab22ad3bd6f 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -20,13 +20,12 @@ enum {
MLO_AN_PHY = 0, /* Conventional PHY */
MLO_AN_FIXED, /* Fixed-link mode */
- MLO_AN_SGMII, /* Cisco SGMII protocol */
- MLO_AN_8023Z, /* 1000base-X protocol */
+ MLO_AN_INBAND, /* In-band protocol */
};
static inline bool phylink_autoneg_inband(unsigned int mode)
{
- return mode == MLO_AN_SGMII || mode == MLO_AN_8023Z;
+ return mode == MLO_AN_INBAND;
}
struct phylink_link_state {
@@ -69,7 +68,7 @@ struct phylink_mac_ops {
/**
* mac_config: configure the MAC for the selected mode and state
* @ndev: net_device structure for the MAC
- * @mode: one of MLO_AN_FIXED, MLO_AN_PHY, MLO_AN_8023Z, MLO_AN_SGMII
+ * @mode: one of MLO_AN_FIXED, MLO_AN_PHY, MLO_AN_INBAND
* @state: state structure
*
* The action performed depends on the currently selected mode:
@@ -77,14 +76,10 @@ struct phylink_mac_ops {
* %MLO_AN_FIXED, %MLO_AN_PHY:
* set the specified speed, duplex, pause mode, and phy interface
* mode in the provided @state.
- * %MLO_AN_8023Z:
- * place the link in 1000base-X mode, advertising the parameters
- * given in advertising in @state.
- * %MLO_AN_SGMII:
- * place the link in Cisco SGMII mode - there is no advertisment
- * to make as the PHY communicates the speed and duplex to the
- * MAC over the in-band control word. Configuration of the pause
- * mode is as per MLO_AN_PHY since this is not included.
+ * %MLO_AN_INBAND:
+ * place the link in an inband negotiation mode (such as
+ * 1000base-X or Cisco SGMII mode depending on the phy interface
+ * mode), advertising the parameters given in advertising in @state.
*/
void (*mac_config)(struct net_device *ndev, unsigned int mode,
const struct phylink_link_state *state);
--
2.7.4
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