[netdrvr] sfc: sfc: Add self-test support

Add a set of self-tests accessible thorugh ethtool.
Add hardware loopback and TX disable control code to support them.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/net/sfc/mdio_10g.h b/drivers/net/sfc/mdio_10g.h
index 338c62c1195b..cb99f3f4491c 100644
--- a/drivers/net/sfc/mdio_10g.h
+++ b/drivers/net/sfc/mdio_10g.h
@@ -44,11 +44,16 @@
 #define MDIO_MMDREG_DEVS1       (6)
 #define MDIO_MMDREG_CTRL2       (7)
 #define MDIO_MMDREG_STAT2       (8)
+#define MDIO_MMDREG_TXDIS       (9)
 
 /* Bits in MMDREG_CTRL1 */
 /* Reset */
 #define MDIO_MMDREG_CTRL1_RESET_LBN     (15)
 #define MDIO_MMDREG_CTRL1_RESET_WIDTH   (1)
+/* Loopback */
+/* Loopback bit for WIS, PCS, PHYSX and DTEXS */
+#define MDIO_MMDREG_CTRL1_LBACK_LBN     (14)
+#define MDIO_MMDREG_CTRL1_LBACK_WIDTH   (1)
 
 /* Bits in MMDREG_STAT1 */
 #define MDIO_MMDREG_STAT1_FAULT_LBN     (7)
@@ -56,6 +61,9 @@
 /* Link state */
 #define MDIO_MMDREG_STAT1_LINK_LBN      (2)
 #define MDIO_MMDREG_STAT1_LINK_WIDTH    (1)
+/* Low power ability */
+#define MDIO_MMDREG_STAT1_LPABLE_LBN    (1)
+#define MDIO_MMDREG_STAT1_LPABLE_WIDTH  (1)
 
 /* Bits in ID reg */
 #define MDIO_ID_REV(_id32)      (_id32 & 0xf)
@@ -76,6 +84,14 @@
 #define MDIO_MMDREG_STAT2_PRESENT_LBN   (14)
 #define MDIO_MMDREG_STAT2_PRESENT_WIDTH (2)
 
+/* Bits in MMDREG_TXDIS */
+#define MDIO_MMDREG_TXDIS_GLOBAL_LBN    (0)
+#define MDIO_MMDREG_TXDIS_GLOBAL_WIDTH  (1)
+
+/* MMD-specific bits, ordered by MMD, then register */
+#define MDIO_PMAPMD_CTRL1_LBACK_LBN     (0)
+#define MDIO_PMAPMD_CTRL1_LBACK_WIDTH   (1)
+
 /* PMA type (4 bits) */
 #define MDIO_PMAPMD_CTRL2_10G_CX4       (0x0)
 #define MDIO_PMAPMD_CTRL2_10G_EW        (0x1)
@@ -217,6 +233,12 @@ int mdio_clause45_check_mmds(struct efx_nic *efx,
 extern int mdio_clause45_links_ok(struct efx_nic *efx,
                                   unsigned int mmd_mask);
 
+/* Generic transmit disable support though PMAPMD */
+extern void mdio_clause45_transmit_disable(struct efx_nic *efx);
+
+/* Generic part of reconfigure: set/clear loopback bits */
+extern void mdio_clause45_phy_reconfigure(struct efx_nic *efx);
+
 /* Read (some of) the PHY settings over MDIO */
 extern void mdio_clause45_get_settings(struct efx_nic *efx,
                                        struct ethtool_cmd *ecmd);