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>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index c953eb19df42..e596c9a6a4c4 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -414,6 +414,7 @@ struct efx_blinker {
  * @init_leds: Sets up board LEDs
  * @set_fault_led: Turns the fault LED on or off
  * @blink: Starts/stops blinking
+ * @monitor: Board-specific health check function
  * @fini: Cleanup function
  * @blinker: used to blink LEDs in software
  * @hwmon_client: I2C client for hardware monitor
@@ -428,6 +429,7 @@ struct efx_board {
          * have a separate init callback that happens later than
          * board init. */
         int (*init_leds)(struct efx_nic *efx);
+        int (*monitor) (struct efx_nic *nic);
         void (*set_fault_led) (struct efx_nic *efx, bool state);
         void (*blink) (struct efx_nic *efx, bool start);
         void (*fini) (struct efx_nic *nic);
@@ -525,11 +527,15 @@ struct efx_phy_operations {
  * @enum efx_phy_mode - PHY operating mode flags
  * @PHY_MODE_NORMAL: on and should pass traffic
  * @PHY_MODE_TX_DISABLED: on with TX disabled
+ * @PHY_MODE_LOW_POWER: set to low power through MDIO
+ * @PHY_MODE_OFF: switched off through external control
  * @PHY_MODE_SPECIAL: on but will not pass traffic
  */
 enum efx_phy_mode {
         PHY_MODE_NORMAL         = 0,
         PHY_MODE_TX_DISABLED    = 1,
+        PHY_MODE_LOW_POWER      = 2,
+        PHY_MODE_OFF            = 4,
         PHY_MODE_SPECIAL        = 8,
 };