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| author | Ben Hutchings <bhutchings@solarflare.com> | 2008-11-04 20:34:56 +0000 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-11-06 00:50:09 -0500 |
| commit | 3e133c44d24a094118caee182200462d46c55b56 (patch) | |
| tree | cabc1821bef090abedd1891c3d16137dea8f2ef3 /drivers/net/sfc/mdio_10g.c | |
| parent | f41507245ef8b079685aba8da5b5b2b5e87e70bc (diff) | |
| download | blackbird-obmc-linux-3e133c44d24a094118caee182200462d46c55b56.tar.gz blackbird-obmc-linux-3e133c44d24a094118caee182200462d46c55b56.zip | |
sfc: Use lm87 and lm90 drivers for board temperature/power monitoring
Add board monitoring to periodic work whenever link is down.
For SFE4001, report when a fault has caused the PHY to turn off.
For SFE4002, switch XFP PHY into low-power state in case of a fault.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/sfc/mdio_10g.c')
| -rw-r--r-- | drivers/net/sfc/mdio_10g.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c index 003e48dcb2f3..19e25210b687 100644 --- a/drivers/net/sfc/mdio_10g.c +++ b/drivers/net/sfc/mdio_10g.c @@ -260,6 +260,41 @@ void mdio_clause45_phy_reconfigure(struct efx_nic *efx) MDIO_MMDREG_CTRL1, ctrl2); } +static void mdio_clause45_set_mmd_lpower(struct efx_nic *efx, + int lpower, int mmd) +{ + int phy = efx->mii.phy_id; + int stat = mdio_clause45_read(efx, phy, mmd, MDIO_MMDREG_STAT1); + int ctrl1, ctrl2; + + EFX_TRACE(efx, "Setting low power mode for MMD %d to %d\n", + mmd, lpower); + + if (stat & (1 << MDIO_MMDREG_STAT1_LPABLE_LBN)) { + ctrl1 = ctrl2 = mdio_clause45_read(efx, phy, + mmd, MDIO_MMDREG_CTRL1); + if (lpower) + ctrl2 |= (1 << MDIO_MMDREG_CTRL1_LPOWER_LBN); + else + ctrl2 &= ~(1 << MDIO_MMDREG_CTRL1_LPOWER_LBN); + if (ctrl1 != ctrl2) + mdio_clause45_write(efx, phy, mmd, + MDIO_MMDREG_CTRL1, ctrl2); + } +} + +void mdio_clause45_set_mmds_lpower(struct efx_nic *efx, + int low_power, unsigned int mmd_mask) +{ + int mmd = 0; + while (mmd_mask) { + if (mmd_mask & 1) + mdio_clause45_set_mmd_lpower(efx, low_power, mmd); + mmd_mask = (mmd_mask >> 1); + mmd++; + } +} + /** * mdio_clause45_get_settings - Read (some of) the PHY settings over MDIO. * @efx: Efx NIC |
