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/tenxpress.c b/drivers/net/sfc/tenxpress.c
index d507c93..8d41c29 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -376,6 +376,7 @@
{
struct tenxpress_phy_data *phy_data = efx->phy_data;
bool link_ok;
+ int rc = 0;
link_ok = tenxpress_link_ok(efx, true);
@@ -391,7 +392,22 @@
atomic_set(&phy_data->bad_crc_count, 0);
}
- return 0;
+ rc = efx->board_info.monitor(efx);
+ if (rc) {
+ EFX_ERR(efx, "Board sensor %s; shutting down PHY\n",
+ (rc == -ERANGE) ? "reported fault" : "failed");
+ if (efx->phy_mode & PHY_MODE_OFF) {
+ /* Assume that board has shut PHY off */
+ phy_data->phy_mode = PHY_MODE_OFF;
+ } else {
+ efx->phy_mode |= PHY_MODE_LOW_POWER;
+ mdio_clause45_set_mmds_lpower(efx, true,
+ efx->phy_op->mmds);
+ phy_data->phy_mode |= PHY_MODE_LOW_POWER;
+ }
+ }
+
+ return rc;
}
static void tenxpress_phy_fini(struct efx_nic *efx)