1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2006-2008 Solarflare Communications Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation, incorporated herein by reference.
10 #ifndef EFX_MDIO_10G_H
11 #define EFX_MDIO_10G_H
13 #include <linux/mdio.h>
16 * Helper functions for doing 10G MDIO as specified in IEEE 802.3 clause 45.
22 static inline unsigned efx_mdio_id_rev(u32 id) { return id & 0xf; }
23 static inline unsigned efx_mdio_id_model(u32 id) { return (id >> 4) & 0x3f; }
24 extern unsigned efx_mdio_id_oui(u32 id);
26 static inline int efx_mdio_read(struct efx_nic *efx, int devad, int addr)
28 return efx->mdio.mdio_read(efx->net_dev, efx->mdio.prtad, devad, addr);
32 efx_mdio_write(struct efx_nic *efx, int devad, int addr, int value)
34 efx->mdio.mdio_write(efx->net_dev, efx->mdio.prtad, devad, addr, value);
37 static inline u32 efx_mdio_read_id(struct efx_nic *efx, int mmd)
39 u16 id_low = efx_mdio_read(efx, mmd, MDIO_DEVID2);
40 u16 id_hi = efx_mdio_read(efx, mmd, MDIO_DEVID1);
41 return (id_hi << 16) | (id_low);
44 static inline bool efx_mdio_phyxgxs_lane_sync(struct efx_nic *efx)
49 for (i = 0; i < 2; ++i)
50 lane_status = efx_mdio_read(efx, MDIO_MMD_PHYXS,
53 sync = !!(lane_status & MDIO_PHYXS_LNSTAT_ALIGN);
55 EFX_LOG(efx, "XGXS lane status: %x\n", lane_status);
59 extern const char *efx_mdio_mmd_name(int mmd);
62 * Reset a specific MMD and wait for reset to clear.
63 * Return number of spins left (>0) on success, -%ETIMEDOUT on failure.
65 * This function will sleep
67 extern int efx_mdio_reset_mmd(struct efx_nic *efx, int mmd,
68 int spins, int spintime);
70 /* As efx_mdio_check_mmd but for multiple MMDs */
71 int efx_mdio_check_mmds(struct efx_nic *efx,
72 unsigned int mmd_mask, unsigned int fatal_mask);
74 /* Check the link status of specified mmds in bit mask */
75 extern bool efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask);
77 /* Generic transmit disable support though PMAPMD */
78 extern void efx_mdio_transmit_disable(struct efx_nic *efx);
80 /* Generic part of reconfigure: set/clear loopback bits */
81 extern void efx_mdio_phy_reconfigure(struct efx_nic *efx);
83 /* Set the power state of the specified MMDs */
84 extern void efx_mdio_set_mmds_lpower(struct efx_nic *efx,
85 int low_power, unsigned int mmd_mask);
87 /* Set (some of) the PHY settings over MDIO */
88 extern int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
90 /* Get pause parameters from AN if available (otherwise return
91 * requested pause parameters)
93 enum efx_fc_type efx_mdio_get_pause(struct efx_nic *efx);
95 /* Wait for specified MMDs to exit reset within a timeout */
96 extern int efx_mdio_wait_reset_mmds(struct efx_nic *efx,
97 unsigned int mmd_mask);
99 /* Set or clear flag, debouncing */
101 efx_mdio_set_flag(struct efx_nic *efx, int devad, int addr,
102 int mask, bool state)
104 mdio_set_flag(&efx->mdio, efx->mdio.prtad, devad, addr, mask, state);
107 #endif /* EFX_MDIO_10G_H */