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>
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c
index 003e48d..19e2521 100644
--- a/drivers/net/sfc/mdio_10g.c
+++ b/drivers/net/sfc/mdio_10g.c
@@ -260,6 +260,41 @@
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