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/
usr/
src/
linux-headers-3.0.0-14-generic-pae/
include/
linux/
- drwxr-xr-x
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Viewing file:  mii.h (11.69 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
/*
* linux/mii.h: definitions for MII-compatible transceivers
* Originally drivers/net/sunhme.h.
*
* Copyright (C) 1996, 1999, 2001 David S. Miller (davem@redhat.com)
*/
#ifndef __LINUX_MII_H__
#define __LINUX_MII_H__
#include <linux/types.h>
/* Generic MII registers. */
#define MII_BMCR 0x00 /* Basic mode control register */
#define MII_BMSR 0x01 /* Basic mode status register */
#define MII_PHYSID1 0x02 /* PHYS ID 1 */
#define MII_PHYSID2 0x03 /* PHYS ID 2 */
#define MII_ADVERTISE 0x04 /* Advertisement control reg */
#define MII_LPA 0x05 /* Link partner ability reg */
#define MII_EXPANSION 0x06 /* Expansion register */
#define MII_CTRL1000 0x09 /* 1000BASE-T control */
#define MII_STAT1000 0x0a /* 1000BASE-T status */
#define MII_ESTATUS 0x0f /* Extended Status */
#define MII_DCOUNTER 0x12 /* Disconnect counter */
#define MII_FCSCOUNTER 0x13 /* False carrier counter */
#define MII_NWAYTEST 0x14 /* N-way auto-neg test reg */
#define MII_RERRCOUNTER 0x15 /* Receive error counter */
#define MII_SREVISION 0x16 /* Silicon revision */
#define MII_RESV1 0x17 /* Reserved... */
#define MII_LBRERROR 0x18 /* Lpback, rx, bypass error */
#define MII_PHYADDR 0x19 /* PHY address */
#define MII_RESV2 0x1a /* Reserved... */
#define MII_TPISTATUS 0x1b /* TPI status for 10mbps */
#define MII_NCONFIG 0x1c /* Network interface config */
/* Basic mode control register. */
#define BMCR_RESV 0x003f /* Unused... */
#define BMCR_SPEED1000 0x0040 /* MSB of Speed (1000) */
#define BMCR_CTST 0x0080 /* Collision test */
#define BMCR_FULLDPLX 0x0100 /* Full duplex */
#define BMCR_ANRESTART 0x0200 /* Auto negotiation restart */
#define BMCR_ISOLATE 0x0400 /* Disconnect DP83840 from MII */
#define BMCR_PDOWN 0x0800 /* Powerdown the DP83840 */
#define BMCR_ANENABLE 0x1000 /* Enable auto negotiation */
#define BMCR_SPEED100 0x2000 /* Select 100Mbps */
#define BMCR_LOOPBACK 0x4000 /* TXD loopback bits */
#define BMCR_RESET 0x8000 /* Reset the DP83840 */
/* Basic mode status register. */
#define BMSR_ERCAP 0x0001 /* Ext-reg capability */
#define BMSR_JCD 0x0002 /* Jabber detected */
#define BMSR_LSTATUS 0x0004 /* Link status */
#define BMSR_ANEGCAPABLE 0x0008 /* Able to do auto-negotiation */
#define BMSR_RFAULT 0x0010 /* Remote fault detected */
#define BMSR_ANEGCOMPLETE 0x0020 /* Auto-negotiation complete */
#define BMSR_RESV 0x00c0 /* Unused... */
#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */
#define BMSR_100HALF2 0x0200 /* Can do 100BASE-T2 HDX */
#define BMSR_100FULL2 0x0400 /* Can do 100BASE-T2 FDX */
#define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */
#define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */
#define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */
#define BMSR_100FULL 0x4000 /* Can do 100mbps, full-duplex */
#define BMSR_100BASE4 0x8000 /* Can do 100mbps, 4k packets */
/* Advertisement control register. */
#define ADVERTISE_SLCT 0x001f /* Selector bits */
#define ADVERTISE_CSMA 0x0001 /* Only selector supported */
#define ADVERTISE_10HALF 0x0020 /* Try for 10mbps half-duplex */
#define ADVERTISE_1000XFULL 0x0020 /* Try for 1000BASE-X full-duplex */
#define ADVERTISE_10FULL 0x0040 /* Try for 10mbps full-duplex */
#define ADVERTISE_1000XHALF 0x0040 /* Try for 1000BASE-X half-duplex */
#define ADVERTISE_100HALF 0x0080 /* Try for 100mbps half-duplex */
#define ADVERTISE_1000XPAUSE 0x0080 /* Try for 1000BASE-X pause */
#define ADVERTISE_100FULL 0x0100 /* Try for 100mbps full-duplex */
#define ADVERTISE_1000XPSE_ASYM 0x0100 /* Try for 1000BASE-X asym pause */
#define ADVERTISE_100BASE4 0x0200 /* Try for 100mbps 4k packets */
#define ADVERTISE_PAUSE_CAP 0x0400 /* Try for pause */
#define ADVERTISE_PAUSE_ASYM 0x0800 /* Try for asymetric pause */
#define ADVERTISE_RESV 0x1000 /* Unused... */
#define ADVERTISE_RFAULT 0x2000 /* Say we can detect faults */
#define ADVERTISE_LPACK 0x4000 /* Ack link partners response */
#define ADVERTISE_NPAGE 0x8000 /* Next page bit */
#define ADVERTISE_FULL (ADVERTISE_100FULL | ADVERTISE_10FULL | \
ADVERTISE_CSMA)
#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | \
ADVERTISE_100HALF | ADVERTISE_100FULL)
/* Link partner ability register. */
#define LPA_SLCT 0x001f /* Same as advertise selector */
#define LPA_10HALF 0x0020 /* Can do 10mbps half-duplex */
#define LPA_1000XFULL 0x0020 /* Can do 1000BASE-X full-duplex */
#define LPA_10FULL 0x0040 /* Can do 10mbps full-duplex */
#define LPA_1000XHALF 0x0040 /* Can do 1000BASE-X half-duplex */
#define LPA_100HALF 0x0080 /* Can do 100mbps half-duplex */
#define LPA_1000XPAUSE 0x0080 /* Can do 1000BASE-X pause */
#define LPA_100FULL 0x0100 /* Can do 100mbps full-duplex */
#define LPA_1000XPAUSE_ASYM 0x0100 /* Can do 1000BASE-X pause asym*/
#define LPA_100BASE4 0x0200 /* Can do 100mbps 4k packets */
#define LPA_PAUSE_CAP 0x0400 /* Can pause */
#define LPA_PAUSE_ASYM 0x0800 /* Can pause asymetrically */
#define LPA_RESV 0x1000 /* Unused... */
#define LPA_RFAULT 0x2000 /* Link partner faulted */
#define LPA_LPACK 0x4000 /* Link partner acked us */
#define LPA_NPAGE 0x8000 /* Next page bit */
#define LPA_DUPLEX (LPA_10FULL | LPA_100FULL)
#define LPA_100 (LPA_100FULL | LPA_100HALF | LPA_100BASE4)
/* Expansion register for auto-negotiation. */
#define EXPANSION_NWAY 0x0001 /* Can do N-way auto-nego */
#define EXPANSION_LCWP 0x0002 /* Got new RX page code word */
#define EXPANSION_ENABLENPAGE 0x0004 /* This enables npage words */
#define EXPANSION_NPCAPABLE 0x0008 /* Link partner supports npage */
#define EXPANSION_MFAULTS 0x0010 /* Multiple faults detected */
#define EXPANSION_RESV 0xffe0 /* Unused... */
#define ESTATUS_1000_TFULL 0x2000 /* Can do 1000BT Full */
#define ESTATUS_1000_THALF 0x1000 /* Can do 1000BT Half */
/* N-way test register. */
#define NWAYTEST_RESV1 0x00ff /* Unused... */
#define NWAYTEST_LOOPBACK 0x0100 /* Enable loopback for N-way */
#define NWAYTEST_RESV2 0xfe00 /* Unused... */
/* 1000BASE-T Control register */
#define ADVERTISE_1000FULL 0x0200 /* Advertise 1000BASE-T full duplex */
#define ADVERTISE_1000HALF 0x0100 /* Advertise 1000BASE-T half duplex */
/* 1000BASE-T Status register */
#define LPA_1000LOCALRXOK 0x2000 /* Link partner local receiver status */
#define LPA_1000REMRXOK 0x1000 /* Link partner remote receiver status */
#define LPA_1000FULL 0x0800 /* Link partner 1000BASE-T full duplex */
#define LPA_1000HALF 0x0400 /* Link partner 1000BASE-T half duplex */
/* Flow control flags */
#define FLOW_CTRL_TX 0x01
#define FLOW_CTRL_RX 0x02
/* This structure is used in all SIOCxMIIxxx ioctl calls */
struct mii_ioctl_data {
__u16 phy_id;
__u16 reg_num;
__u16 val_in;
__u16 val_out;
};
#ifdef __KERNEL__
#include <linux/if.h>
struct ethtool_cmd;
struct mii_if_info {
int phy_id;
int advertising;
int phy_id_mask;
int reg_num_mask;
unsigned int full_duplex : 1; /* is full duplex? */
unsigned int force_media : 1; /* is autoneg. disabled? */
unsigned int supports_gmii : 1; /* are GMII registers supported? */
struct net_device *dev;
int (*mdio_read) (struct net_device *dev, int phy_id, int location);
void (*mdio_write) (struct net_device *dev, int phy_id, int location, int val);
};
extern int mii_link_ok (struct mii_if_info *mii);
extern int mii_nway_restart (struct mii_if_info *mii);
extern int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
extern int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
extern int mii_check_gmii_support(struct mii_if_info *mii);
extern void mii_check_link (struct mii_if_info *mii);
extern unsigned int mii_check_media (struct mii_if_info *mii,
unsigned int ok_to_print,
unsigned int init_media);
extern int generic_mii_ioctl(struct mii_if_info *mii_if,
struct mii_ioctl_data *mii_data, int cmd,
unsigned int *duplex_changed);
static inline struct mii_ioctl_data *if_mii(struct ifreq *rq)
{
return (struct mii_ioctl_data *) &rq->ifr_ifru;
}
/**
* mii_nway_result
* @negotiated: value of MII ANAR and'd with ANLPAR
*
* Given a set of MII abilities, check each bit and returns the
* currently supported media, in the priority order defined by
* IEEE 802.3u. We use LPA_xxx constants but note this is not the
* value of LPA solely, as described above.
*
* The one exception to IEEE 802.3u is that 100baseT4 is placed
* between 100T-full and 100T-half. If your phy does not support
* 100T4 this is fine. If your phy places 100T4 elsewhere in the
* priority order, you will need to roll your own function.
*/
static inline unsigned int mii_nway_result (unsigned int negotiated)
{
unsigned int ret;
if (negotiated & LPA_100FULL)
ret = LPA_100FULL;
else if (negotiated & LPA_100BASE4)
ret = LPA_100BASE4;
else if (negotiated & LPA_100HALF)
ret = LPA_100HALF;
else if (negotiated & LPA_10FULL)
ret = LPA_10FULL;
else
ret = LPA_10HALF;
return ret;
}
/**
* mii_duplex
* @duplex_lock: Non-zero if duplex is locked at full
* @negotiated: value of MII ANAR and'd with ANLPAR
*
* A small helper function for a common case. Returns one
* if the media is operating or locked at full duplex, and
* returns zero otherwise.
*/
static inline unsigned int mii_duplex (unsigned int duplex_lock,
unsigned int negotiated)
{
if (duplex_lock)
return 1;
if (mii_nway_result(negotiated) & LPA_DUPLEX)
return 1;
return 0;
}
/**
* mii_advertise_flowctrl - get flow control advertisement flags
* @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)
*/
static inline u16 mii_advertise_flowctrl(int cap)
{
u16 adv = 0;
if (cap & FLOW_CTRL_RX)
adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
if (cap & FLOW_CTRL_TX)
adv ^= ADVERTISE_PAUSE_ASYM;
return adv;
}
/**
* mii_resolve_flowctrl_fdx
* @lcladv: value of MII ADVERTISE register
* @rmtadv: value of MII LPA register
*
* Resolve full duplex flow control as per IEEE 802.3-2005 table 28B-3
*/
static inline u8 mii_resolve_flowctrl_fdx(u16 lcladv, u16 rmtadv)
{
u8 cap = 0;
if (lcladv & rmtadv & ADVERTISE_PAUSE_CAP) {
cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
} else if (lcladv & rmtadv & ADVERTISE_PAUSE_ASYM) {
if (lcladv & ADVERTISE_PAUSE_CAP)
cap = FLOW_CTRL_RX;
else if (rmtadv & ADVERTISE_PAUSE_CAP)
cap = FLOW_CTRL_TX;
}
return cap;
}
#endif /* __KERNEL__ */
#endif /* __LINUX_MII_H__ */
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