--- /dev/null
+From 5e61fe157a27afc7c0d4f7bcbceefdca536c015f Mon Sep 17 00:00:00 2001
+From: Maxime Chevallier <maxime.chevallier@bootlin.com>
+Date: Wed, 17 Aug 2022 14:32:52 +0200
+Subject: [PATCH] net: phy: Introduce QUSGMII PHY mode
+
+The QUSGMII mode is a derivative of Cisco's USXGMII standard. This
+standard is pretty similar to SGMII, but allows for faster speeds, and
+has the build-in bits for Quad and Octa variants (like QSGMII).
+
+The main difference with SGMII/QSGMII is that USXGMII/QUSGMII re-uses
+the preamble to carry various information, named 'Extensions'.
+
+As of today, the USXGMII standard only mentions the "PCH" extension,
+which is used to convey timestamps, allowing in-band signaling of PTP
+timestamps without having to modify the frame itself.
+
+This commit adds support for that mode. When no extension is in use, it
+behaves exactly like QSGMII, although it's not compatible with QSGMII.
+
+Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
+Reviewed-by: Andrew Lunn <andrew@lunn.ch>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ Documentation/networking/phy.rst | 9 +++++++++
+ drivers/net/phy/phylink.c | 3 +++
+ include/linux/phy.h | 4 ++++
+ 3 files changed, 16 insertions(+)
+
+--- a/Documentation/networking/phy.rst
++++ b/Documentation/networking/phy.rst
+@@ -303,6 +303,15 @@ Some of the interface modes are describe
+ rate of 125Mpbs using a 4B/5B encoding scheme, resulting in an underlying
+ data rate of 100Mpbs.
+
++``PHY_INTERFACE_MODE_QUSGMII``
++ This defines the Cisco the Quad USGMII mode, which is the Quad variant of
++ the USGMII (Universal SGMII) link. It's very similar to QSGMII, but uses
++ a Packet Control Header (PCH) instead of the 7 bytes preamble to carry not
++ only the port id, but also so-called "extensions". The only documented
++ extension so-far in the specification is the inclusion of timestamps, for
++ PTP-enabled PHYs. This mode isn't compatible with QSGMII, but offers the
++ same capabilities in terms of link speed and negociation.
++
+ Pause frames / flow control
+ ===========================
+
+--- a/drivers/net/phy/phylink.c
++++ b/drivers/net/phy/phylink.c
+@@ -367,6 +367,7 @@ void phylink_get_linkmodes(unsigned long
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ case PHY_INTERFACE_MODE_RGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
++ case PHY_INTERFACE_MODE_QUSGMII:
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_GMII:
+ caps |= MAC_1000HD | MAC_1000FD;
+@@ -630,6 +631,7 @@ static int phylink_parse_mode(struct phy
+ switch (pl->link_config.interface) {
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
++ case PHY_INTERFACE_MODE_QUSGMII:
+ phylink_set(pl->supported, 10baseT_Half);
+ phylink_set(pl->supported, 10baseT_Full);
+ phylink_set(pl->supported, 100baseT_Half);
+@@ -2956,6 +2958,7 @@ void phylink_mii_c22_pcs_get_state(struc
+
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
++ case PHY_INTERFACE_MODE_QUSGMII:
+ phylink_decode_sgmii_word(state, lpa);
+ break;
+
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -115,6 +115,7 @@ extern const int phy_10gbit_features_arr
+ * @PHY_INTERFACE_MODE_25GBASER: 25G BaseR
+ * @PHY_INTERFACE_MODE_USXGMII: Universal Serial 10GE MII
+ * @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN
++ * @PHY_INTERFACE_MODE_QUSGMII: Quad Universal SGMII
+ * @PHY_INTERFACE_MODE_MAX: Book keeping
+ *
+ * Describes the interface between the MAC and PHY.
+@@ -152,6 +153,7 @@ typedef enum {
+ PHY_INTERFACE_MODE_USXGMII,
+ /* 10GBASE-KR - with Clause 73 AN */
+ PHY_INTERFACE_MODE_10GKR,
++ PHY_INTERFACE_MODE_QUSGMII,
+ PHY_INTERFACE_MODE_MAX,
+ } phy_interface_t;
+
+@@ -267,6 +269,8 @@ static inline const char *phy_modes(phy_
+ return "10gbase-kr";
+ case PHY_INTERFACE_MODE_100BASEX:
+ return "100base-x";
++ case PHY_INTERFACE_MODE_QUSGMII:
++ return "qusgmii";
+ default:
+ return "unknown";
+ }
--- /dev/null
+From c04ade27cb7b952b6b9b9a0efa0a6129cc63f2ae Mon Sep 17 00:00:00 2001
+From: Maxime Chevallier <maxime.chevallier@bootlin.com>
+Date: Wed, 17 Aug 2022 14:32:54 +0200
+Subject: [PATCH] net: phy: Add helper to derive the number of ports from a phy
+ mode
+
+Some phy modes such as QSGMII multiplex several MAC<->PHY links on one
+single physical interface. QSGMII used to be the only one supported, but
+other modes such as QUSGMII also carry multiple links.
+
+This helper allows getting the number of links that are multiplexed
+on a given interface.
+
+Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
+Reviewed-by: Andrew Lunn <andrew@lunn.ch>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/phy/phy-core.c | 52 ++++++++++++++++++++++++++++++++++++++
+ include/linux/phy.h | 2 ++
+ 2 files changed, 54 insertions(+)
+
+--- a/drivers/net/phy/phy-core.c
++++ b/drivers/net/phy/phy-core.c
+@@ -74,6 +74,58 @@ const char *phy_duplex_to_str(unsigned i
+ }
+ EXPORT_SYMBOL_GPL(phy_duplex_to_str);
+
++/**
++ * phy_interface_num_ports - Return the number of links that can be carried by
++ * a given MAC-PHY physical link. Returns 0 if this is
++ * unknown, the number of links else.
++ *
++ * @interface: The interface mode we want to get the number of ports
++ */
++int phy_interface_num_ports(phy_interface_t interface)
++{
++ switch (interface) {
++ case PHY_INTERFACE_MODE_NA:
++ return 0;
++ case PHY_INTERFACE_MODE_INTERNAL:
++ case PHY_INTERFACE_MODE_MII:
++ case PHY_INTERFACE_MODE_GMII:
++ case PHY_INTERFACE_MODE_TBI:
++ case PHY_INTERFACE_MODE_REVMII:
++ case PHY_INTERFACE_MODE_RMII:
++ case PHY_INTERFACE_MODE_REVRMII:
++ case PHY_INTERFACE_MODE_RGMII:
++ case PHY_INTERFACE_MODE_RGMII_ID:
++ case PHY_INTERFACE_MODE_RGMII_RXID:
++ case PHY_INTERFACE_MODE_RGMII_TXID:
++ case PHY_INTERFACE_MODE_RTBI:
++ case PHY_INTERFACE_MODE_XGMII:
++ case PHY_INTERFACE_MODE_XLGMII:
++ case PHY_INTERFACE_MODE_MOCA:
++ case PHY_INTERFACE_MODE_TRGMII:
++ case PHY_INTERFACE_MODE_USXGMII:
++ case PHY_INTERFACE_MODE_SGMII:
++ case PHY_INTERFACE_MODE_SMII:
++ case PHY_INTERFACE_MODE_1000BASEX:
++ case PHY_INTERFACE_MODE_2500BASEX:
++ case PHY_INTERFACE_MODE_5GBASER:
++ case PHY_INTERFACE_MODE_10GBASER:
++ case PHY_INTERFACE_MODE_25GBASER:
++ case PHY_INTERFACE_MODE_10GKR:
++ case PHY_INTERFACE_MODE_100BASEX:
++ case PHY_INTERFACE_MODE_RXAUI:
++ case PHY_INTERFACE_MODE_XAUI:
++ return 1;
++ case PHY_INTERFACE_MODE_QSGMII:
++ case PHY_INTERFACE_MODE_QUSGMII:
++ return 4;
++ case PHY_INTERFACE_MODE_MAX:
++ WARN_ONCE(1, "PHY_INTERFACE_MODE_MAX isn't a valid interface mode");
++ return 0;
++ }
++ return 0;
++}
++EXPORT_SYMBOL_GPL(phy_interface_num_ports);
++
+ /* A mapping of all SUPPORTED settings to speed/duplex. This table
+ * must be grouped by speed and sorted in descending match priority
+ * - iow, descending speed.
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -964,6 +964,8 @@ struct phy_fixup {
+ const char *phy_speed_to_str(int speed);
+ const char *phy_duplex_to_str(unsigned int duplex);
+
++int phy_interface_num_ports(phy_interface_t interface);
++
+ /* A structure for mapping a particular speed and duplex
+ * combination to a particular SUPPORTED and ADVERTISED value
+ */
--- /dev/null
+From 05ad5d4581c3c1cc724fe50d4652833fb9f3037b Mon Sep 17 00:00:00 2001
+From: Sean Anderson <sean.anderson@seco.com>
+Date: Fri, 2 Sep 2022 18:02:39 -0400
+Subject: [PATCH] net: phy: Add 1000BASE-KX interface mode
+
+Add 1000BASE-KX interface mode. This 1G backplane ethernet as described in
+clause 70. Clause 73 autonegotiation is mandatory, and only full duplex
+operation is supported.
+
+Although at the PMA level this interface mode is identical to
+1000BASE-X, it uses a different form of in-band autonegation. This
+justifies a separate interface mode, since the interface mode (along
+with the MLO_AN_* autonegotiation mode) sets the type of autonegotiation
+which will be used on a link. This results in more than just electrical
+differences between the link modes.
+
+With regard to 1000BASE-X, 1000BASE-KX holds a similar position to
+SGMII: same signaling, but different autonegotiation. PCS drivers
+(which typically handle in-band autonegotiation) may only support
+1000BASE-X, and not 1000BASE-KX. Similarly, the phy mode is used to
+configure serdes phys with phy_set_mode_ext. Due to the different
+electrical standards (SFI or XFI vs Clause 70), they will likely want to
+use different configuration. Adding a phy interface mode for
+1000BASE-KX helps simplify configuration in these areas.
+
+Signed-off-by: Sean Anderson <sean.anderson@seco.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ Documentation/networking/phy.rst | 6 ++++++
+ drivers/net/phy/phy-core.c | 1 +
+ drivers/net/phy/phylink.c | 1 +
+ include/linux/phy.h | 4 ++++
+ 4 files changed, 12 insertions(+)
+
+--- a/Documentation/networking/phy.rst
++++ b/Documentation/networking/phy.rst
+@@ -312,6 +312,12 @@ Some of the interface modes are describe
+ PTP-enabled PHYs. This mode isn't compatible with QSGMII, but offers the
+ same capabilities in terms of link speed and negociation.
+
++``PHY_INTERFACE_MODE_1000BASEKX``
++ This is 1000BASE-X as defined by IEEE 802.3 Clause 36 with Clause 73
++ autonegotiation. Generally, it will be used with a Clause 70 PMD. To
++ contrast with the 1000BASE-X phy mode used for Clause 38 and 39 PMDs, this
++ interface mode has different autonegotiation and only supports full duplex.
++
+ Pause frames / flow control
+ ===========================
+
+--- a/drivers/net/phy/phy-core.c
++++ b/drivers/net/phy/phy-core.c
+@@ -114,6 +114,7 @@ int phy_interface_num_ports(phy_interfac
+ case PHY_INTERFACE_MODE_100BASEX:
+ case PHY_INTERFACE_MODE_RXAUI:
+ case PHY_INTERFACE_MODE_XAUI:
++ case PHY_INTERFACE_MODE_1000BASEKX:
+ return 1;
+ case PHY_INTERFACE_MODE_QSGMII:
+ case PHY_INTERFACE_MODE_QUSGMII:
+--- a/drivers/net/phy/phylink.c
++++ b/drivers/net/phy/phylink.c
+@@ -390,6 +390,7 @@ void phylink_get_linkmodes(unsigned long
+ case PHY_INTERFACE_MODE_1000BASEX:
+ caps |= MAC_1000HD;
+ fallthrough;
++ case PHY_INTERFACE_MODE_1000BASEKX:
+ case PHY_INTERFACE_MODE_TRGMII:
+ caps |= MAC_1000FD;
+ break;
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -116,6 +116,7 @@ extern const int phy_10gbit_features_arr
+ * @PHY_INTERFACE_MODE_USXGMII: Universal Serial 10GE MII
+ * @PHY_INTERFACE_MODE_10GKR: 10GBASE-KR - with Clause 73 AN
+ * @PHY_INTERFACE_MODE_QUSGMII: Quad Universal SGMII
++ * @PHY_INTERFACE_MODE_1000BASEKX: 1000Base-KX - with Clause 73 AN
+ * @PHY_INTERFACE_MODE_MAX: Book keeping
+ *
+ * Describes the interface between the MAC and PHY.
+@@ -154,6 +155,7 @@ typedef enum {
+ /* 10GBASE-KR - with Clause 73 AN */
+ PHY_INTERFACE_MODE_10GKR,
+ PHY_INTERFACE_MODE_QUSGMII,
++ PHY_INTERFACE_MODE_1000BASEKX,
+ PHY_INTERFACE_MODE_MAX,
+ } phy_interface_t;
+
+@@ -251,6 +253,8 @@ static inline const char *phy_modes(phy_
+ return "trgmii";
+ case PHY_INTERFACE_MODE_1000BASEX:
+ return "1000base-x";
++ case PHY_INTERFACE_MODE_1000BASEKX:
++ return "1000base-kx";
+ case PHY_INTERFACE_MODE_2500BASEX:
+ return "2500base-x";
+ case PHY_INTERFACE_MODE_5GBASER:
--- /dev/null
+From 0c3e10cb44232833a50cb8e3e784c432906a60c1 Mon Sep 17 00:00:00 2001
+From: Sean Anderson <sean.anderson@seco.com>
+Date: Tue, 20 Sep 2022 18:12:31 -0400
+Subject: [PATCH] net: phy: Add support for rate matching
+
+This adds support for rate matching (also known as rate adaptation) to
+the phy subsystem. The general idea is that the phy interface runs at
+one speed, and the MAC throttles the rate at which it sends packets to
+the link speed. There's a good overview of several techniques for
+achieving this at [1]. This patch adds support for three: pause-frame
+based (such as in Aquantia phys), CRS-based (such as in 10PASS-TS and
+2BASE-TL), and open-loop-based (such as in 10GBASE-W).
+
+This patch makes a few assumptions and a few non assumptions about the
+types of rate matching available. First, it assumes that different phys
+may use different forms of rate matching. Second, it assumes that phys
+can use rate matching for any of their supported link speeds (e.g. if a
+phy supports 10BASE-T and XGMII, then it can adapt XGMII to 10BASE-T).
+Third, it does not assume that all interface modes will use the same
+form of rate matching. Fourth, it does not assume that all phy devices
+will support rate matching (even if some do). Relaxing or strengthening
+these (non-)assumptions could result in a different API. For example, if
+all interface modes were assumed to use the same form of rate matching,
+then a bitmask of interface modes supportting rate matching would
+suffice.
+
+For some better visibility into the process, the current rate matching
+mode is exposed as part of the ethtool ksettings. For the moment, only
+read access is supported. I'm not sure what userspace might want to
+configure yet (disable it altogether, disable just one mode, specify the
+mode to use, etc.). For the moment, since only pause-based rate
+adaptation support is added in the next few commits, rate matching can
+be disabled altogether by adjusting the advertisement.
+
+802.3 calls this feature "rate adaptation" in clause 49 (10GBASE-R) and
+"rate matching" in clause 61 (10PASS-TL and 2BASE-TS). Aquantia also calls
+this feature "rate adaptation". I chose "rate matching" because it is
+shorter, and because Russell doesn't think "adaptation" is correct in this
+context.
+
+Signed-off-by: Sean Anderson <sean.anderson@seco.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ Documentation/networking/ethtool-netlink.rst | 2 ++
+ drivers/net/phy/phy-core.c | 21 +++++++++++++++
+ drivers/net/phy/phy.c | 28 ++++++++++++++++++++
+ include/linux/phy.h | 22 ++++++++++++++-
+ include/uapi/linux/ethtool.h | 18 +++++++++++--
+ include/uapi/linux/ethtool_netlink.h | 1 +
+ net/ethtool/ioctl.c | 1 +
+ net/ethtool/linkmodes.c | 5 ++++
+ 8 files changed, 95 insertions(+), 3 deletions(-)
+
+--- a/Documentation/networking/ethtool-netlink.rst
++++ b/Documentation/networking/ethtool-netlink.rst
+@@ -418,6 +418,7 @@ Kernel response contents:
+ ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode
+ ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode
+ ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_STATE`` u8 Master/slave port state
++ ``ETHTOOL_A_LINKMODES_RATE_MATCHING`` u8 PHY rate matching
+ ========================================== ====== ==========================
+
+ For ``ETHTOOL_A_LINKMODES_OURS``, value represents advertised modes and mask
+@@ -441,6 +442,7 @@ Request contents:
+ ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s)
+ ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode
+ ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode
++ ``ETHTOOL_A_LINKMODES_RATE_MATCHING`` u8 PHY rate matching
+ ``ETHTOOL_A_LINKMODES_LANES`` u32 lanes
+ ========================================== ====== ==========================
+
+--- a/drivers/net/phy/phy-core.c
++++ b/drivers/net/phy/phy-core.c
+@@ -75,6 +75,27 @@ const char *phy_duplex_to_str(unsigned i
+ EXPORT_SYMBOL_GPL(phy_duplex_to_str);
+
+ /**
++ * phy_rate_matching_to_str - Return a string describing the rate matching
++ *
++ * @rate_matching: Type of rate matching to describe
++ */
++const char *phy_rate_matching_to_str(int rate_matching)
++{
++ switch (rate_matching) {
++ case RATE_MATCH_NONE:
++ return "none";
++ case RATE_MATCH_PAUSE:
++ return "pause";
++ case RATE_MATCH_CRS:
++ return "crs";
++ case RATE_MATCH_OPEN_LOOP:
++ return "open-loop";
++ }
++ return "Unsupported (update phy-core.c)";
++}
++EXPORT_SYMBOL_GPL(phy_rate_matching_to_str);
++
++/**
+ * phy_interface_num_ports - Return the number of links that can be carried by
+ * a given MAC-PHY physical link. Returns 0 if this is
+ * unknown, the number of links else.
+--- a/drivers/net/phy/phy.c
++++ b/drivers/net/phy/phy.c
+@@ -127,6 +127,33 @@ void phy_print_status(struct phy_device
+ EXPORT_SYMBOL(phy_print_status);
+
+ /**
++ * phy_get_rate_matching - determine if rate matching is supported
++ * @phydev: The phy device to return rate matching for
++ * @iface: The interface mode to use
++ *
++ * This determines the type of rate matching (if any) that @phy supports
++ * using @iface. @iface may be %PHY_INTERFACE_MODE_NA to determine if any
++ * interface supports rate matching.
++ *
++ * Return: The type of rate matching @phy supports for @iface, or
++ * %RATE_MATCH_NONE.
++ */
++int phy_get_rate_matching(struct phy_device *phydev,
++ phy_interface_t iface)
++{
++ int ret = RATE_MATCH_NONE;
++
++ if (phydev->drv->get_rate_matching) {
++ mutex_lock(&phydev->lock);
++ ret = phydev->drv->get_rate_matching(phydev, iface);
++ mutex_unlock(&phydev->lock);
++ }
++
++ return ret;
++}
++EXPORT_SYMBOL_GPL(phy_get_rate_matching);
++
++/**
+ * phy_config_interrupt - configure the PHY device for the requested interrupts
+ * @phydev: the phy_device struct
+ * @interrupts: interrupt flags to configure for this @phydev
+@@ -268,6 +295,7 @@ void phy_ethtool_ksettings_get(struct ph
+ cmd->base.duplex = phydev->duplex;
+ cmd->base.master_slave_cfg = phydev->master_slave_get;
+ cmd->base.master_slave_state = phydev->master_slave_state;
++ cmd->base.rate_matching = phydev->rate_matching;
+ if (phydev->interface == PHY_INTERFACE_MODE_MOCA)
+ cmd->base.port = PORT_BNC;
+ else
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -280,7 +280,6 @@ static inline const char *phy_modes(phy_
+ }
+ }
+
+-
+ #define PHY_INIT_TIMEOUT 100000
+ #define PHY_FORCE_TIMEOUT 10
+
+@@ -573,6 +572,7 @@ struct macsec_ops;
+ * @lp_advertising: Current link partner advertised linkmodes
+ * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
+ * @autoneg: Flag autoneg being used
++ * @rate_matching: Current rate matching mode
+ * @link: Current link state
+ * @autoneg_complete: Flag auto negotiation of the link has completed
+ * @mdix: Current crossover
+@@ -639,6 +639,8 @@ struct phy_device {
+ unsigned irq_suspended:1;
+ unsigned irq_rerun:1;
+
++ int rate_matching;
++
+ enum phy_state state;
+
+ u32 dev_flags;
+@@ -801,6 +803,21 @@ struct phy_driver {
+ */
+ int (*get_features)(struct phy_device *phydev);
+
++ /**
++ * @get_rate_matching: Get the supported type of rate matching for a
++ * particular phy interface. This is used by phy consumers to determine
++ * whether to advertise lower-speed modes for that interface. It is
++ * assumed that if a rate matching mode is supported on an interface,
++ * then that interface's rate can be adapted to all slower link speeds
++ * supported by the phy. If iface is %PHY_INTERFACE_MODE_NA, and the phy
++ * supports any kind of rate matching for any interface, then it must
++ * return that rate matching mode (preferring %RATE_MATCH_PAUSE to
++ * %RATE_MATCH_CRS). If the interface is not supported, this should
++ * return %RATE_MATCH_NONE.
++ */
++ int (*get_rate_matching)(struct phy_device *phydev,
++ phy_interface_t iface);
++
+ /* PHY Power Management */
+ /** @suspend: Suspend the hardware, saving state if needed */
+ int (*suspend)(struct phy_device *phydev);
+@@ -967,6 +984,7 @@ struct phy_fixup {
+
+ const char *phy_speed_to_str(int speed);
+ const char *phy_duplex_to_str(unsigned int duplex);
++const char *phy_rate_matching_to_str(int rate_matching);
+
+ int phy_interface_num_ports(phy_interface_t interface);
+
+@@ -1675,6 +1693,8 @@ int phy_disable_interrupts(struct phy_de
+ void phy_request_interrupt(struct phy_device *phydev);
+ void phy_free_interrupt(struct phy_device *phydev);
+ void phy_print_status(struct phy_device *phydev);
++int phy_get_rate_matching(struct phy_device *phydev,
++ phy_interface_t iface);
+ int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
+ void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
+ void phy_advertise_supported(struct phy_device *phydev);
+--- a/include/uapi/linux/ethtool.h
++++ b/include/uapi/linux/ethtool.h
+@@ -1809,6 +1809,20 @@ static inline int ethtool_validate_duple
+ #define MASTER_SLAVE_STATE_SLAVE 3
+ #define MASTER_SLAVE_STATE_ERR 4
+
++/* These are used to throttle the rate of data on the phy interface when the
++ * native speed of the interface is higher than the link speed. These should
++ * not be used for phy interfaces which natively support multiple speeds (e.g.
++ * MII or SGMII).
++ */
++/* No rate matching performed. */
++#define RATE_MATCH_NONE 0
++/* The phy sends pause frames to throttle the MAC. */
++#define RATE_MATCH_PAUSE 1
++/* The phy asserts CRS to prevent the MAC from transmitting. */
++#define RATE_MATCH_CRS 2
++/* The MAC is programmed with a sufficiently-large IPG. */
++#define RATE_MATCH_OPEN_LOOP 3
++
+ /* Which connector port. */
+ #define PORT_TP 0x00
+ #define PORT_AUI 0x01
+@@ -2002,8 +2016,8 @@ enum ethtool_reset_flags {
+ * reported consistently by PHYLIB. Read-only.
+ * @master_slave_cfg: Master/slave port mode.
+ * @master_slave_state: Master/slave port state.
++ * @rate_matching: Rate adaptation performed by the PHY
+ * @reserved: Reserved for future use; see the note on reserved space.
+- * @reserved1: Reserved for future use; see the note on reserved space.
+ * @link_mode_masks: Variable length bitmaps.
+ *
+ * If autonegotiation is disabled, the speed and @duplex represent the
+@@ -2054,7 +2068,7 @@ struct ethtool_link_settings {
+ __u8 transceiver;
+ __u8 master_slave_cfg;
+ __u8 master_slave_state;
+- __u8 reserved1[1];
++ __u8 rate_matching;
+ __u32 reserved[7];
+ __u32 link_mode_masks[0];
+ /* layout of link_mode_masks fields:
+--- a/include/uapi/linux/ethtool_netlink.h
++++ b/include/uapi/linux/ethtool_netlink.h
+@@ -238,6 +238,7 @@ enum {
+ ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG, /* u8 */
+ ETHTOOL_A_LINKMODES_MASTER_SLAVE_STATE, /* u8 */
+ ETHTOOL_A_LINKMODES_LANES, /* u32 */
++ ETHTOOL_A_LINKMODES_RATE_MATCHING, /* u8 */
+
+ /* add new constants above here */
+ __ETHTOOL_A_LINKMODES_CNT,
+--- a/net/ethtool/ioctl.c
++++ b/net/ethtool/ioctl.c
+@@ -559,6 +559,7 @@ static int ethtool_get_link_ksettings(st
+ = __ETHTOOL_LINK_MODE_MASK_NU32;
+ link_ksettings.base.master_slave_cfg = MASTER_SLAVE_CFG_UNSUPPORTED;
+ link_ksettings.base.master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
++ link_ksettings.base.rate_matching = RATE_MATCH_NONE;
+
+ return store_link_ksettings_for_user(useraddr, &link_ksettings);
+ }
+--- a/net/ethtool/linkmodes.c
++++ b/net/ethtool/linkmodes.c
+@@ -70,6 +70,7 @@ static int linkmodes_reply_size(const st
+ + nla_total_size(sizeof(u32)) /* LINKMODES_SPEED */
+ + nla_total_size(sizeof(u32)) /* LINKMODES_LANES */
+ + nla_total_size(sizeof(u8)) /* LINKMODES_DUPLEX */
++ + nla_total_size(sizeof(u8)) /* LINKMODES_RATE_MATCHING */
+ + 0;
+ ret = ethnl_bitset_size(ksettings->link_modes.advertising,
+ ksettings->link_modes.supported,
+@@ -143,6 +144,10 @@ static int linkmodes_fill_reply(struct s
+ lsettings->master_slave_state))
+ return -EMSGSIZE;
+
++ if (nla_put_u8(skb, ETHTOOL_A_LINKMODES_RATE_MATCHING,
++ lsettings->rate_matching))
++ return -EMSGSIZE;
++
+ return 0;
+ }
+
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
-@@ -756,6 +756,18 @@ static void phylink_resolve_flow(struct
+@@ -759,6 +759,18 @@ static void phylink_resolve_flow(struct
}
}
static void phylink_mac_config(struct phylink *pl,
const struct phylink_link_state *state)
{
-@@ -787,6 +799,7 @@ static void phylink_major_config(struct
+@@ -790,6 +802,7 @@ static void phylink_major_config(struct
const struct phylink_link_state *state)
{
struct phylink_pcs *pcs = NULL;
int err;
phylink_dbg(pl, "major config %s\n", phy_modes(state->interface));
-@@ -799,8 +812,12 @@ static void phylink_major_config(struct
+@@ -802,8 +815,12 @@ static void phylink_major_config(struct
pcs);
return;
}
if (pl->mac_ops->mac_prepare) {
err = pl->mac_ops->mac_prepare(pl->config, pl->cur_link_an_mode,
state->interface);
-@@ -814,8 +831,10 @@ static void phylink_major_config(struct
+@@ -817,8 +834,10 @@ static void phylink_major_config(struct
/* If we have a new PCS, switch to the new PCS after preparing the MAC
* for the change.
*/
phylink_mac_config(pl, state);
-@@ -841,6 +860,8 @@ static void phylink_major_config(struct
+@@ -844,6 +863,8 @@ static void phylink_major_config(struct
phylink_err(pl, "mac_finish failed: %pe\n",
ERR_PTR(err));
}
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
-@@ -764,7 +764,7 @@ static void phylink_pcs_poll_stop(struct
+@@ -767,7 +767,7 @@ static void phylink_pcs_poll_stop(struct
static void phylink_pcs_poll_start(struct phylink *pl)
{
bool mac_link_dropped;
bool using_mac_select_pcs;
-@@ -795,6 +800,22 @@ static void phylink_mac_pcs_an_restart(s
+@@ -798,6 +803,22 @@ static void phylink_mac_pcs_an_restart(s
}
}
static void phylink_major_config(struct phylink *pl, bool restart,
const struct phylink_link_state *state)
{
-@@ -832,12 +853,16 @@ static void phylink_major_config(struct
+@@ -835,12 +856,16 @@ static void phylink_major_config(struct
* for the change.
*/
if (pcs_changed) {
if (pl->pcs_ops) {
err = pl->pcs_ops->pcs_config(pl->pcs, pl->cur_link_an_mode,
state->interface,
-@@ -1261,6 +1286,7 @@ struct phylink *phylink_create(struct ph
+@@ -1264,6 +1289,7 @@ struct phylink *phylink_create(struct ph
pl->link_config.speed = SPEED_UNKNOWN;
pl->link_config.duplex = DUPLEX_UNKNOWN;
pl->link_config.an_enabled = true;
pl->mac_ops = mac_ops;
__set_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state);
timer_setup(&pl->link_poll, phylink_fixed_poll, 0);
-@@ -1652,6 +1678,8 @@ void phylink_start(struct phylink *pl)
+@@ -1655,6 +1681,8 @@ void phylink_start(struct phylink *pl)
if (pl->netdev)
netif_carrier_off(pl->netdev);
/* Apply the link configuration to the MAC when starting. This allows
* a fixed-link to start with the correct parameters, and also
* ensures that we set the appropriate advertisement for Serdes links.
-@@ -1662,6 +1690,8 @@ void phylink_start(struct phylink *pl)
+@@ -1665,6 +1693,8 @@ void phylink_start(struct phylink *pl)
*/
phylink_mac_initial_config(pl, true);
clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state);
phylink_run_resolve(pl);
-@@ -1681,16 +1711,9 @@ void phylink_start(struct phylink *pl)
+@@ -1684,16 +1714,9 @@ void phylink_start(struct phylink *pl)
poll = true;
}
if (poll)
mod_timer(&pl->link_poll, jiffies + HZ);
if (pl->phydev)
-@@ -1727,6 +1750,10 @@ void phylink_stop(struct phylink *pl)
+@@ -1730,6 +1753,10 @@ void phylink_stop(struct phylink *pl)
}
phylink_run_resolve_and_disable(pl, PHYLINK_DISABLE_STOPPED);
#include <linux/linkmode.h>
#include <linux/netlink.h>
#include <linux/mdio.h>
-@@ -582,6 +583,7 @@ struct macsec_ops;
+@@ -590,6 +591,7 @@ struct macsec_ops;
* @phy_num_led_triggers: Number of triggers in @phy_led_triggers
* @led_link_trigger: LED trigger for link up/down
* @last_triggered: last LED trigger for link speed
* @master_slave_set: User requested master/slave configuration
* @master_slave_get: Current master/slave advertisement
* @master_slave_state: Current master/slave configuration
-@@ -668,6 +670,7 @@ struct phy_device {
+@@ -678,6 +680,7 @@ struct phy_device {
struct phy_led_trigger *led_link_trigger;
#endif
/*
* Interrupt number for this PHY
-@@ -739,6 +742,19 @@ struct phy_tdr_config {
+@@ -749,6 +752,19 @@ struct phy_tdr_config {
#define PHY_PAIR_ALL -1
/**
init_data.fwnode = of_fwnode_handle(led);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -745,15 +745,19 @@ struct phy_tdr_config {
+@@ -755,15 +755,19 @@ struct phy_tdr_config {
* struct phy_led: An LED driven by the PHY
*
* @list: List of LEDs
/**
* struct phy_driver - Driver structure for a particular PHY type
*
-@@ -953,6 +957,15 @@ struct phy_driver {
+@@ -978,6 +982,15 @@ struct phy_driver {
int (*get_sqi)(struct phy_device *dev);
/** @get_sqi_max: Get the maximum signal quality indication */
int (*get_sqi_max)(struct phy_device *dev);
init_data.fwnode = of_fwnode_handle(led);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -966,6 +966,18 @@ struct phy_driver {
+@@ -991,6 +991,18 @@ struct phy_driver {
*/
int (*led_brightness_set)(struct phy_device *dev,
u8 index, enum led_brightness value);
#endif /* _LINUX_ETHTOOL_H */
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
-@@ -1953,6 +1953,13 @@ __printf(2, 3) void ethtool_sprintf(u8 *
+@@ -1954,6 +1954,13 @@ __printf(2, 3) void ethtool_sprintf(u8 *
}
EXPORT_SYMBOL(ethtool_sprintf);
const unsigned long *advertising);
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
-@@ -931,7 +931,6 @@ static int phylink_change_inband_advert(
+@@ -934,7 +934,6 @@ static int phylink_change_inband_advert(
return 0;
}
static void phylink_mac_pcs_get_state(struct phylink *pl,
struct phylink_link_state *state)
{
-@@ -3015,6 +3014,52 @@ void phylink_mii_c22_pcs_get_state(struc
+@@ -3019,6 +3018,52 @@ void phylink_mii_c22_pcs_get_state(struc
EXPORT_SYMBOL_GPL(phylink_mii_c22_pcs_get_state);
/**
* phylink_mii_c22_pcs_set_advertisement() - configure the clause 37 PCS
* advertisement
* @pcs: a pointer to a &struct mdio_device.
-@@ -3086,6 +3131,46 @@ int phylink_mii_c22_pcs_set_advertisemen
+@@ -3090,6 +3135,46 @@ int phylink_mii_c22_pcs_set_advertisemen
EXPORT_SYMBOL_GPL(phylink_mii_c22_pcs_set_advertisement);
/**
sysfs_remove_link(&dev->dev.kobj, "phydev");
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -843,6 +843,12 @@ struct phy_driver {
+@@ -868,6 +868,12 @@ struct phy_driver {
/** @handle_interrupt: Override default interrupt handling */
irqreturn_t (*handle_interrupt)(struct phy_device *phydev);
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
-@@ -398,6 +398,7 @@ void phylink_get_linkmodes(unsigned long
+@@ -400,6 +400,7 @@ void phylink_get_linkmodes(unsigned long
caps |= MAC_1000FD;
break;
case PHY_INTERFACE_MODE_2500BASEX:
caps |= MAC_2500FD;
break;
-@@ -651,6 +652,10 @@ static int phylink_parse_mode(struct phy
+@@ -654,6 +655,10 @@ static int phylink_parse_mode(struct phy
phylink_set(pl->supported, 2500baseX_Full);
break;
break;
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -153,6 +153,7 @@ typedef enum {
- PHY_INTERFACE_MODE_USXGMII,
- /* 10GBASE-KR - with Clause 73 AN */
+@@ -157,6 +157,7 @@ typedef enum {
PHY_INTERFACE_MODE_10GKR,
+ PHY_INTERFACE_MODE_QUSGMII,
+ PHY_INTERFACE_MODE_1000BASEKX,
+ PHY_INTERFACE_MODE_2500SGMII,
PHY_INTERFACE_MODE_MAX,
} phy_interface_t;
-@@ -268,6 +269,8 @@ static inline const char *phy_modes(phy_
- return "10gbase-kr";
- case PHY_INTERFACE_MODE_100BASEX:
+@@ -276,6 +277,8 @@ static inline const char *phy_modes(phy_
return "100base-x";
+ case PHY_INTERFACE_MODE_QUSGMII:
+ return "qusgmii";
+ case PHY_INTERFACE_MODE_2500SGMII:
+ return "sgmii-2500";
default:
phy_led_trigger_change_speed(phydev);
}
-@@ -563,7 +563,7 @@ int phy_start_cable_test(struct phy_devi
+@@ -591,7 +591,7 @@ int phy_start_cable_test(struct phy_devi
goto out;
/* Mark the carrier down until the test is complete */
netif_testing_on(dev);
err = phydev->drv->cable_test_start(phydev);
-@@ -634,7 +634,7 @@ int phy_start_cable_test_tdr(struct phy_
+@@ -662,7 +662,7 @@ int phy_start_cable_test_tdr(struct phy_
goto out;
/* Mark the carrier down until the test is complete */
netif_testing_on(dev);
err = phydev->drv->cable_test_tdr_start(phydev, config);
-@@ -706,7 +706,7 @@ static int phy_check_link_status(struct
+@@ -734,7 +734,7 @@ static int phy_check_link_status(struct
phy_link_up(phydev);
} else if (!phydev->link && phydev->state != PHY_NOLINK) {
phydev->state = PHY_NOLINK;
}
return 0;
-@@ -1192,7 +1192,7 @@ void phy_state_machine(struct work_struc
+@@ -1220,7 +1220,7 @@ void phy_state_machine(struct work_struc
case PHY_HALTED:
if (phydev->link) {
phydev->link = 0;
phydev->mii_ts->link_state(phydev->mii_ts, phydev);
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
-@@ -1370,7 +1370,8 @@ void phylink_destroy(struct phylink *pl)
+@@ -1373,7 +1373,8 @@ void phylink_destroy(struct phylink *pl)
}
EXPORT_SYMBOL_GPL(phylink_destroy);
bool tx_pause, rx_pause;
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -706,7 +706,7 @@ struct phy_device {
+@@ -716,7 +716,7 @@ struct phy_device {
u8 mdix;
u8 mdix_ctrl;
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
-@@ -706,7 +706,10 @@ static int phy_check_link_status(struct
+@@ -734,7 +734,10 @@ static int phy_check_link_status(struct
phy_link_up(phydev);
} else if (!phydev->link && phydev->state != PHY_NOLINK) {
phydev->state = PHY_NOLINK;
}
return 0;
-@@ -1192,7 +1195,10 @@ void phy_state_machine(struct work_struc
+@@ -1220,7 +1223,10 @@ void phy_state_machine(struct work_struc
case PHY_HALTED:
if (phydev->link) {
phydev->link = 0;
break;
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -622,6 +622,7 @@ struct phy_device {
+@@ -630,6 +630,7 @@ struct phy_device {
unsigned downshifted_rate:1;
unsigned is_on_sfp_module:1;
unsigned mac_managed_pm:1;
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -984,6 +984,10 @@ struct phy_driver {
+@@ -1009,6 +1009,10 @@ struct phy_driver {
int (*led_blink_set)(struct phy_device *dev, u8 index,
unsigned long *delay_on,
unsigned long *delay_off);
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
-@@ -1991,6 +1991,11 @@ int phylink_ethtool_ksettings_set(struct
+@@ -1994,6 +1994,11 @@ int phylink_ethtool_ksettings_set(struct
* the presence of a PHY, this should not be changed as that
* should be determined from the media side advertisement.
*/
return phy_ethtool_ksettings_set(pl->phydev, kset);
}
-@@ -2294,8 +2299,11 @@ int phylink_ethtool_get_eee(struct phyli
+@@ -2297,8 +2302,11 @@ int phylink_ethtool_get_eee(struct phyli
ASSERT_RTNL();
return ret;
}
-@@ -2312,8 +2320,11 @@ int phylink_ethtool_set_eee(struct phyli
+@@ -2315,8 +2323,11 @@ int phylink_ethtool_set_eee(struct phyli
ASSERT_RTNL();
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
-@@ -408,6 +408,7 @@ void phylink_get_linkmodes(unsigned long
+@@ -410,6 +410,7 @@ void phylink_get_linkmodes(unsigned long
case PHY_INTERFACE_MODE_XGMII:
case PHY_INTERFACE_MODE_RXAUI:
case PHY_INTERFACE_MODE_XAUI:
case PHY_INTERFACE_MODE_10GBASER:
case PHY_INTERFACE_MODE_10GKR:
-@@ -662,6 +663,7 @@ static int phylink_parse_mode(struct phy
+@@ -665,6 +666,7 @@ static int phylink_parse_mode(struct phy
fallthrough;
case PHY_INTERFACE_MODE_USXGMII:
case PHY_INTERFACE_MODE_10GKR:
phylink_set(pl->supported, 10baseT_Full);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -139,6 +139,7 @@ typedef enum {
+@@ -141,6 +141,7 @@ typedef enum {
PHY_INTERFACE_MODE_XGMII,
PHY_INTERFACE_MODE_XLGMII,
PHY_INTERFACE_MODE_MOCA,
PHY_INTERFACE_MODE_QSGMII,
PHY_INTERFACE_MODE_TRGMII,
PHY_INTERFACE_MODE_100BASEX,
-@@ -244,6 +245,8 @@ static inline const char *phy_modes(phy_
+@@ -248,6 +249,8 @@ static inline const char *phy_modes(phy_
return "xlgmii";
case PHY_INTERFACE_MODE_MOCA:
return "moca";
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
-@@ -280,7 +280,7 @@ static inline const char *phy_modes(phy_
+@@ -287,7 +287,7 @@ static inline const char *phy_modes(phy_
#define PHY_INIT_TIMEOUT 100000
#define PHY_FORCE_TIMEOUT 10
* @dev: target MDIO device
--- a/drivers/net/phy/phy-core.c
+++ b/drivers/net/phy/phy-core.c
-@@ -482,10 +482,16 @@ int __phy_read_mmd(struct phy_device *ph
+@@ -556,10 +556,16 @@ int __phy_read_mmd(struct phy_device *ph
struct mii_bus *bus = phydev->mdio.bus;
int phy_addr = phydev->mdio.addr;
}
return val;
}
-@@ -538,12 +544,18 @@ int __phy_write_mmd(struct phy_device *p
+@@ -612,12 +618,18 @@ int __phy_write_mmd(struct phy_device *p
struct mii_bus *bus = phydev->mdio.bus;
int phy_addr = phydev->mdio.addr;
}
return ret;
}
-@@ -749,6 +761,13 @@ EXPORT_SYMBOL_GPL(phy_modify_mmd);
+@@ -823,6 +835,13 @@ EXPORT_SYMBOL_GPL(phy_modify_mmd);
static int __phy_read_page(struct phy_device *phydev)
{
if (WARN_ONCE(!phydev->drv->read_page, "read_page callback not available, PHY driver not loaded?\n"))
return -EOPNOTSUPP;
-@@ -757,6 +776,13 @@ static int __phy_read_page(struct phy_de
+@@ -831,6 +850,13 @@ static int __phy_read_page(struct phy_de
static int __phy_write_page(struct phy_device *phydev, int page)
{
if (WARN_ONCE(!phydev->drv->write_page, "write_page callback not available, PHY driver not loaded?\n"))
return -EOPNOTSUPP;
-@@ -858,6 +884,18 @@ int phy_read_paged(struct phy_device *ph
+@@ -932,6 +958,18 @@ int phy_read_paged(struct phy_device *ph
{
int ret = 0, oldpage;
oldpage = phy_select_page(phydev, page);
if (oldpage >= 0)
ret = __phy_read(phydev, regnum);
-@@ -879,6 +917,18 @@ int phy_write_paged(struct phy_device *p
+@@ -953,6 +991,18 @@ int phy_write_paged(struct phy_device *p
{
int ret = 0, oldpage;
#define MDIO_DEVICE_IS_PHY 0x80000000
/**
-@@ -421,6 +422,22 @@ struct mii_bus {
+@@ -428,6 +429,22 @@ struct mii_bus {
/** @shared: shared state across different PHYs */
struct phy_package_shared *shared[PHY_MAX_ADDR];
};
#define to_mii_bus(d) container_of(d, struct mii_bus, dev)
-@@ -1795,6 +1812,66 @@ static inline int __phy_package_read(str
+@@ -1825,6 +1842,66 @@ static inline int __phy_package_read(str
return __mdiobus_read(phydev->mdio.bus, shared->addr, regnum);
}
static inline int phy_package_write(struct phy_device *phydev,
u32 regnum, u16 val)
{
-@@ -1817,6 +1894,72 @@ static inline int __phy_package_write(st
+@@ -1847,6 +1924,72 @@ static inline int __phy_package_write(st
return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
}
projects / openwrt / staging / dangole.git / commitdiff