diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2009-04-29 08:19:36 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-29 17:32:36 -0700 |
| commit | af2a3eac2fe6a6d8e9fdf6927284b34466a7d808 (patch) | |
| tree | 7ccb5fd4ab0b81a46535e251cb7a151efa0c39f8 /drivers/net/mdio.c | |
| parent | a8c30832b5b12e5d4e9d1c20cdac3cc2880e08b8 (diff) | |
| download | lwn-af2a3eac2fe6a6d8e9fdf6927284b34466a7d808.tar.gz lwn-af2a3eac2fe6a6d8e9fdf6927284b34466a7d808.zip | |
mdio: Add mdio45_ethtool_spauseparam_an()
This implements the ETHTOOL_SPAUSEPARAM operation for MDIO (clause 45)
PHYs with auto-negotiation MMDs.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mdio.c')
| -rw-r--r-- | drivers/net/mdio.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/mdio.c b/drivers/net/mdio.c index 0604a25748ee..2fb0d16b61f7 100644 --- a/drivers/net/mdio.c +++ b/drivers/net/mdio.c @@ -275,6 +275,36 @@ void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio, EXPORT_SYMBOL(mdio45_ethtool_gset_npage); /** + * mdio45_ethtool_spauseparam_an - set auto-negotiated pause parameters + * @mdio: MDIO interface + * @ecmd: Ethtool request structure + * + * This function assumes that the PHY has an auto-negotiation MMD. It + * will enable and disable advertising of flow control as appropriate. + */ +void mdio45_ethtool_spauseparam_an(const struct mdio_if_info *mdio, + const struct ethtool_pauseparam *ecmd) +{ + int adv, old_adv; + + WARN_ON(!(mdio->mmds & MDIO_DEVS_AN)); + + old_adv = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_AN, + MDIO_AN_ADVERTISE); + adv = old_adv & ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); + if (ecmd->autoneg) + adv |= mii_advertise_flowctrl( + (ecmd->rx_pause ? FLOW_CTRL_RX : 0) | + (ecmd->tx_pause ? FLOW_CTRL_TX : 0)); + if (adv != old_adv) { + mdio->mdio_write(mdio->dev, mdio->prtad, MDIO_MMD_AN, + MDIO_AN_ADVERTISE, adv); + mdio45_nway_restart(mdio); + } +} +EXPORT_SYMBOL(mdio45_ethtool_spauseparam_an); + +/** * mdio_mii_ioctl - MII ioctl interface for MDIO (clause 22 or 45) PHYs * @mdio: MDIO interface * @mii_data: MII ioctl data structure |