1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2006-2009 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.
21 static inline unsigned efx_mdio_id_rev(u32 id
) { return id
& 0xf; }
22 static inline unsigned efx_mdio_id_model(u32 id
) { return (id
>> 4) & 0x3f; }
23 extern unsigned efx_mdio_id_oui(u32 id
);
25 static inline int efx_mdio_read(struct efx_nic
*efx
, int devad
, int addr
)
27 return efx
->mdio
.mdio_read(efx
->net_dev
, efx
->mdio
.prtad
, devad
, addr
);
31 efx_mdio_write(struct efx_nic
*efx
, int devad
, int addr
, int value
)
33 efx
->mdio
.mdio_write(efx
->net_dev
, efx
->mdio
.prtad
, devad
, addr
, value
);
36 static inline u32
efx_mdio_read_id(struct efx_nic
*efx
, int mmd
)
38 u16 id_low
= efx_mdio_read(efx
, mmd
, MDIO_DEVID2
);
39 u16 id_hi
= efx_mdio_read(efx
, mmd
, MDIO_DEVID1
);
40 return (id_hi
<< 16) | (id_low
);
43 static inline bool efx_mdio_phyxgxs_lane_sync(struct efx_nic
*efx
)
48 for (i
= 0; i
< 2; ++i
)
49 lane_status
= efx_mdio_read(efx
, MDIO_MMD_PHYXS
,
52 sync
= !!(lane_status
& MDIO_PHYXS_LNSTAT_ALIGN
);
54 netif_dbg(efx
, hw
, efx
->net_dev
, "XGXS lane status: %x\n",
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 /* Push advertising flags and restart autonegotiation */
91 extern void efx_mdio_an_reconfigure(struct efx_nic
*efx
);
93 /* Get pause parameters from AN if available (otherwise return
94 * requested pause parameters)
96 enum efx_fc_type
efx_mdio_get_pause(struct efx_nic
*efx
);
98 /* Wait for specified MMDs to exit reset within a timeout */
99 extern int efx_mdio_wait_reset_mmds(struct efx_nic
*efx
,
100 unsigned int mmd_mask
);
102 /* Set or clear flag, debouncing */
104 efx_mdio_set_flag(struct efx_nic
*efx
, int devad
, int addr
,
105 int mask
, bool state
)
107 mdio_set_flag(&efx
->mdio
, efx
->mdio
.prtad
, devad
, addr
, mask
, state
);
110 /* Liveness self-test for MDIO PHYs */
111 extern int efx_mdio_test_alive(struct efx_nic
*efx
);
113 #endif /* EFX_MDIO_10G_H */
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