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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: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2009-04-29 08:21:53 +00:00 committed by David S. Miller
parent 3f926da82f
commit 0c09c1a49c
3 changed files with 18 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/mdio.c
View File

@ -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) {

4
include/linux/ethtool.h
View File

@ -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,

5
include/linux/mdio.h
View File

@ -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;