1 files changed, 110 insertions, 0 deletions

diff --git a/kernel/drivers/net/ethernet/sfc/mdio_10g.h b/kernel/drivers/net/ethernet/sfc/mdio_10g.h
new file mode 100644
index 000000000..4a2dc4c28
--- /dev/null
+++ b/kernel/drivers/net/ethernet/sfc/mdio_10g.h
@@ -0,0 +1,110 @@
+/****************************************************************************
+ * Driver for Solarflare network controllers and boards
+ * Copyright 2006-2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_MDIO_10G_H
+#define EFX_MDIO_10G_H
+
+#include <linux/mdio.h>
+
+/*
+ * Helper functions for doing 10G MDIO as specified in IEEE 802.3 clause 45.
+ */
+
+#include "efx.h"
+
+static inline unsigned efx_mdio_id_rev(u32 id) { return id & 0xf; }
+static inline unsigned efx_mdio_id_model(u32 id) { return (id >> 4) & 0x3f; }
+unsigned efx_mdio_id_oui(u32 id);
+
+static inline int efx_mdio_read(struct efx_nic *efx, int devad, int addr)
+{
+	return efx->mdio.mdio_read(efx->net_dev, efx->mdio.prtad, devad, addr);
+}
+
+static inline void
+efx_mdio_write(struct efx_nic *efx, int devad, int addr, int value)
+{
+	efx->mdio.mdio_write(efx->net_dev, efx->mdio.prtad, devad, addr, value);
+}
+
+static inline u32 efx_mdio_read_id(struct efx_nic *efx, int mmd)
+{
+	u16 id_low = efx_mdio_read(efx, mmd, MDIO_DEVID2);
+	u16 id_hi = efx_mdio_read(efx, mmd, MDIO_DEVID1);
+	return (id_hi << 16) | (id_low);
+}
+
+static inline bool efx_mdio_phyxgxs_lane_sync(struct efx_nic *efx)
+{
+	int i, lane_status;
+	bool sync;
+
+	for (i = 0; i < 2; ++i)
+		lane_status = efx_mdio_read(efx, MDIO_MMD_PHYXS,
+					    MDIO_PHYXS_LNSTAT);
+
+	sync = !!(lane_status & MDIO_PHYXS_LNSTAT_ALIGN);
+	if (!sync)
+		netif_dbg(efx, hw, efx->net_dev, "XGXS lane status: %x\n",
+			  lane_status);
+	return sync;
+}
+
+const char *efx_mdio_mmd_name(int mmd);
+
+/*
+ * Reset a specific MMD and wait for reset to clear.
+ * Return number of spins left (>0) on success, -%ETIMEDOUT on failure.
+ *
+ * This function will sleep
+ */
+int efx_mdio_reset_mmd(struct efx_nic *efx, int mmd, int spins, int spintime);
+
+/* As efx_mdio_check_mmd but for multiple MMDs */
+int efx_mdio_check_mmds(struct efx_nic *efx, unsigned int mmd_mask);
+
+/* Check the link status of specified mmds in bit mask */
+bool efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask);
+
+/* Generic transmit disable support though PMAPMD */
+void efx_mdio_transmit_disable(struct efx_nic *efx);
+
+/* Generic part of reconfigure: set/clear loopback bits */
+void efx_mdio_phy_reconfigure(struct efx_nic *efx);
+
+/* Set the power state of the specified MMDs */
+void efx_mdio_set_mmds_lpower(struct efx_nic *efx, int low_power,
+			      unsigned int mmd_mask);
+
+/* Set (some of) the PHY settings over MDIO */
+int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
+
+/* Push advertising flags and restart autonegotiation */
+void efx_mdio_an_reconfigure(struct efx_nic *efx);
+
+/* Get pause parameters from AN if available (otherwise return
+ * requested pause parameters)
+ */
+u8 efx_mdio_get_pause(struct efx_nic *efx);
+
+/* Wait for specified MMDs to exit reset within a timeout */
+int efx_mdio_wait_reset_mmds(struct efx_nic *efx, unsigned int mmd_mask);
+
+/* Set or clear flag, debouncing */
+static inline void
+efx_mdio_set_flag(struct efx_nic *efx, int devad, int addr,
+		  int mask, bool state)
+{
+	mdio_set_flag(&efx->mdio, efx->mdio.prtad, devad, addr, mask, state);
+}
+
+/* Liveness self-test for MDIO PHYs */
+int efx_mdio_test_alive(struct efx_nic *efx);
+
+#endif /* EFX_MDIO_10G_H */