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Commit 0c09c1a4 authored by Ben Hutchings's avatar Ben Hutchings Committed by David S. Miller
Browse files

ethtool/mdio: Report MDIO mode support and link partner advertising 



Add mdio_support and lp_advertising fields to ethtool_cmd.  Set these
in mdio45_ethtool_gset{,_npage}().

Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3f926da8

drivers/net/mdio.c

+12 −7
Original line number Diff line number Diff line
@@ -173,6 +173,8 @@ void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio, 


	ecmd->transceiver = XCVR_INTERNAL;

	ecmd->phy_address = mdio->prtad;

	ecmd->mdio_support =

		mdio->mode_support & (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22);



	reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,

			      MDIO_CTRL2);
@@ -235,16 +237,19 @@ void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio, 


	if (ecmd->autoneg) {

		u32 modes = 0;

		int an_stat = mdio->mdio_read(mdio->dev, mdio->prtad,

					      MDIO_MMD_AN, MDIO_STAT1);



		/* If AN is complete and successful, report best common

		 * mode, otherwise report best advertised mode. */

		if (mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_AN,

				    MDIO_STAT1) &

		    MDIO_AN_STAT1_COMPLETE)

			modes = (ecmd->advertising &

				 (mdio45_get_an(mdio, MDIO_AN_LPA) |

				  npage_lpa));

		if (modes == 0)

		if (an_stat & MDIO_AN_STAT1_COMPLETE) {

			ecmd->lp_advertising =

				mdio45_get_an(mdio, MDIO_AN_LPA) | npage_lpa;

			if (an_stat & MDIO_AN_STAT1_LPABLE)

				ecmd->lp_advertising |= ADVERTISED_Autoneg;

			modes = ecmd->advertising & ecmd->lp_advertising;

		}

		if ((modes & ~ADVERTISED_Autoneg) == 0)

			modes = ecmd->advertising;



		if (modes & ADVERTISED_10000baseT_Full) {

include/linux/ethtool.h

+3 −1
Original line number Diff line number Diff line
@@ -26,11 +26,13 @@ struct ethtool_cmd { 
	__u8	phy_address;

	__u8	transceiver;	/* Which transceiver to use */

	__u8	autoneg;	/* Enable or disable autonegotiation */

	__u8	mdio_support;

	__u32	maxtxpkt;	/* Tx pkts before generating tx int */

	__u32	maxrxpkt;	/* Rx pkts before generating rx int */

	__u16	speed_hi;

	__u16	reserved2;

	__u32	reserved[3];

	__u32	lp_advertising;	/* Features the link partner advertises */

	__u32	reserved[2];

};



static inline void ethtool_cmd_speed_set(struct ethtool_cmd *ep,

include/linux/mdio.h

+3 −2
Original line number Diff line number Diff line
@@ -234,6 +234,9 @@ static inline __u16 mdio_phy_id_devad(int phy_id) 
	return phy_id & MDIO_PHY_ID_DEVAD;

}



#define MDIO_SUPPORTS_C22		1

#define MDIO_SUPPORTS_C45		2



#ifdef __KERNEL__ 



/**
@@ -264,8 +267,6 @@ struct mdio_if_info { 


#define MDIO_PRTAD_NONE			(-1)

#define MDIO_DEVAD_NONE			(-1)

#define MDIO_SUPPORTS_C22		1

#define MDIO_SUPPORTS_C45		2

#define MDIO_EMULATE_C22		4



struct ethtool_cmd;