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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
340 lines
8.5 KiB
C
340 lines
8.5 KiB
C
/*
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* linux/mii.h: definitions for MII-compatible transceivers
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* Originally drivers/net/sunhme.h.
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*
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* Copyright (C) 1996, 1999, 2001 David S. Miller (davem@redhat.com)
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*/
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#ifndef __LINUX_MII_H__
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#define __LINUX_MII_H__
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#include <linux/if.h>
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#include <uapi/linux/mii.h>
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struct ethtool_cmd;
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struct mii_if_info {
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int phy_id;
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int advertising;
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int phy_id_mask;
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int reg_num_mask;
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unsigned int full_duplex : 1; /* is full duplex? */
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unsigned int force_media : 1; /* is autoneg. disabled? */
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unsigned int supports_gmii : 1; /* are GMII registers supported? */
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struct net_device *dev;
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int (*mdio_read) (struct net_device *dev, int phy_id, int location);
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void (*mdio_write) (struct net_device *dev, int phy_id, int location, int val);
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};
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extern int mii_link_ok (struct mii_if_info *mii);
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extern int mii_nway_restart (struct mii_if_info *mii);
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extern int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
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extern int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
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extern int mii_check_gmii_support(struct mii_if_info *mii);
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extern void mii_check_link (struct mii_if_info *mii);
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extern unsigned int mii_check_media (struct mii_if_info *mii,
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unsigned int ok_to_print,
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unsigned int init_media);
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extern int generic_mii_ioctl(struct mii_if_info *mii_if,
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struct mii_ioctl_data *mii_data, int cmd,
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unsigned int *duplex_changed);
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static inline struct mii_ioctl_data *if_mii(struct ifreq *rq)
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{
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return (struct mii_ioctl_data *) &rq->ifr_ifru;
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}
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/**
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* mii_nway_result
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* @negotiated: value of MII ANAR and'd with ANLPAR
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*
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* Given a set of MII abilities, check each bit and returns the
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* currently supported media, in the priority order defined by
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* IEEE 802.3u. We use LPA_xxx constants but note this is not the
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* value of LPA solely, as described above.
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*
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* The one exception to IEEE 802.3u is that 100baseT4 is placed
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* between 100T-full and 100T-half. If your phy does not support
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* 100T4 this is fine. If your phy places 100T4 elsewhere in the
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* priority order, you will need to roll your own function.
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*/
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static inline unsigned int mii_nway_result (unsigned int negotiated)
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{
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unsigned int ret;
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if (negotiated & LPA_100FULL)
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ret = LPA_100FULL;
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else if (negotiated & LPA_100BASE4)
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ret = LPA_100BASE4;
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else if (negotiated & LPA_100HALF)
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ret = LPA_100HALF;
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else if (negotiated & LPA_10FULL)
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ret = LPA_10FULL;
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else
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ret = LPA_10HALF;
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return ret;
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}
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/**
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* mii_duplex
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* @duplex_lock: Non-zero if duplex is locked at full
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* @negotiated: value of MII ANAR and'd with ANLPAR
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*
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* A small helper function for a common case. Returns one
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* if the media is operating or locked at full duplex, and
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* returns zero otherwise.
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*/
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static inline unsigned int mii_duplex (unsigned int duplex_lock,
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unsigned int negotiated)
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{
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if (duplex_lock)
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return 1;
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if (mii_nway_result(negotiated) & LPA_DUPLEX)
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return 1;
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return 0;
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}
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/**
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* ethtool_adv_to_mii_adv_t
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* @ethadv: the ethtool advertisement settings
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*
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* A small helper function that translates ethtool advertisement
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* settings to phy autonegotiation advertisements for the
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* MII_ADVERTISE register.
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*/
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static inline u32 ethtool_adv_to_mii_adv_t(u32 ethadv)
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{
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u32 result = 0;
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if (ethadv & ADVERTISED_10baseT_Half)
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result |= ADVERTISE_10HALF;
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if (ethadv & ADVERTISED_10baseT_Full)
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result |= ADVERTISE_10FULL;
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if (ethadv & ADVERTISED_100baseT_Half)
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result |= ADVERTISE_100HALF;
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if (ethadv & ADVERTISED_100baseT_Full)
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result |= ADVERTISE_100FULL;
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if (ethadv & ADVERTISED_Pause)
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result |= ADVERTISE_PAUSE_CAP;
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if (ethadv & ADVERTISED_Asym_Pause)
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result |= ADVERTISE_PAUSE_ASYM;
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return result;
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}
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/**
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* mii_adv_to_ethtool_adv_t
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* @adv: value of the MII_ADVERTISE register
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*
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* A small helper function that translates MII_ADVERTISE bits
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* to ethtool advertisement settings.
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*/
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static inline u32 mii_adv_to_ethtool_adv_t(u32 adv)
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{
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u32 result = 0;
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if (adv & ADVERTISE_10HALF)
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result |= ADVERTISED_10baseT_Half;
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if (adv & ADVERTISE_10FULL)
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result |= ADVERTISED_10baseT_Full;
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if (adv & ADVERTISE_100HALF)
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result |= ADVERTISED_100baseT_Half;
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if (adv & ADVERTISE_100FULL)
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result |= ADVERTISED_100baseT_Full;
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if (adv & ADVERTISE_PAUSE_CAP)
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result |= ADVERTISED_Pause;
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if (adv & ADVERTISE_PAUSE_ASYM)
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result |= ADVERTISED_Asym_Pause;
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return result;
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}
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/**
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* ethtool_adv_to_mii_ctrl1000_t
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* @ethadv: the ethtool advertisement settings
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*
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* A small helper function that translates ethtool advertisement
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* settings to phy autonegotiation advertisements for the
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* MII_CTRL1000 register when in 1000T mode.
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*/
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static inline u32 ethtool_adv_to_mii_ctrl1000_t(u32 ethadv)
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{
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u32 result = 0;
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if (ethadv & ADVERTISED_1000baseT_Half)
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result |= ADVERTISE_1000HALF;
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if (ethadv & ADVERTISED_1000baseT_Full)
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result |= ADVERTISE_1000FULL;
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return result;
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}
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/**
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* mii_ctrl1000_to_ethtool_adv_t
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* @adv: value of the MII_CTRL1000 register
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*
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* A small helper function that translates MII_CTRL1000
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* bits, when in 1000Base-T mode, to ethtool
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* advertisement settings.
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*/
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static inline u32 mii_ctrl1000_to_ethtool_adv_t(u32 adv)
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{
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u32 result = 0;
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if (adv & ADVERTISE_1000HALF)
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result |= ADVERTISED_1000baseT_Half;
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if (adv & ADVERTISE_1000FULL)
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result |= ADVERTISED_1000baseT_Full;
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return result;
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}
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/**
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* mii_lpa_to_ethtool_lpa_t
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* @adv: value of the MII_LPA register
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*
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* A small helper function that translates MII_LPA
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* bits, when in 1000Base-T mode, to ethtool
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* LP advertisement settings.
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*/
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static inline u32 mii_lpa_to_ethtool_lpa_t(u32 lpa)
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{
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u32 result = 0;
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if (lpa & LPA_LPACK)
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result |= ADVERTISED_Autoneg;
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return result | mii_adv_to_ethtool_adv_t(lpa);
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}
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/**
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* mii_stat1000_to_ethtool_lpa_t
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* @adv: value of the MII_STAT1000 register
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*
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* A small helper function that translates MII_STAT1000
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* bits, when in 1000Base-T mode, to ethtool
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* advertisement settings.
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*/
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static inline u32 mii_stat1000_to_ethtool_lpa_t(u32 lpa)
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{
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u32 result = 0;
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if (lpa & LPA_1000HALF)
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result |= ADVERTISED_1000baseT_Half;
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if (lpa & LPA_1000FULL)
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result |= ADVERTISED_1000baseT_Full;
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return result;
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}
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/**
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* ethtool_adv_to_mii_adv_x
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* @ethadv: the ethtool advertisement settings
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*
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* A small helper function that translates ethtool advertisement
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* settings to phy autonegotiation advertisements for the
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* MII_CTRL1000 register when in 1000Base-X mode.
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*/
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static inline u32 ethtool_adv_to_mii_adv_x(u32 ethadv)
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{
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u32 result = 0;
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if (ethadv & ADVERTISED_1000baseT_Half)
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result |= ADVERTISE_1000XHALF;
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if (ethadv & ADVERTISED_1000baseT_Full)
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result |= ADVERTISE_1000XFULL;
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if (ethadv & ADVERTISED_Pause)
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result |= ADVERTISE_1000XPAUSE;
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if (ethadv & ADVERTISED_Asym_Pause)
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result |= ADVERTISE_1000XPSE_ASYM;
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return result;
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}
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/**
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* mii_adv_to_ethtool_adv_x
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* @adv: value of the MII_CTRL1000 register
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*
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* A small helper function that translates MII_CTRL1000
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* bits, when in 1000Base-X mode, to ethtool
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* advertisement settings.
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*/
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static inline u32 mii_adv_to_ethtool_adv_x(u32 adv)
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{
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u32 result = 0;
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if (adv & ADVERTISE_1000XHALF)
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result |= ADVERTISED_1000baseT_Half;
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if (adv & ADVERTISE_1000XFULL)
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result |= ADVERTISED_1000baseT_Full;
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if (adv & ADVERTISE_1000XPAUSE)
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result |= ADVERTISED_Pause;
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if (adv & ADVERTISE_1000XPSE_ASYM)
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result |= ADVERTISED_Asym_Pause;
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return result;
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}
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/**
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* mii_lpa_to_ethtool_lpa_x
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* @adv: value of the MII_LPA register
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*
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* A small helper function that translates MII_LPA
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* bits, when in 1000Base-X mode, to ethtool
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* LP advertisement settings.
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*/
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static inline u32 mii_lpa_to_ethtool_lpa_x(u32 lpa)
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{
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u32 result = 0;
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if (lpa & LPA_LPACK)
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result |= ADVERTISED_Autoneg;
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return result | mii_adv_to_ethtool_adv_x(lpa);
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}
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/**
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* mii_advertise_flowctrl - get flow control advertisement flags
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* @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)
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*/
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static inline u16 mii_advertise_flowctrl(int cap)
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{
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u16 adv = 0;
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if (cap & FLOW_CTRL_RX)
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adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
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if (cap & FLOW_CTRL_TX)
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adv ^= ADVERTISE_PAUSE_ASYM;
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return adv;
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}
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/**
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* mii_resolve_flowctrl_fdx
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* @lcladv: value of MII ADVERTISE register
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* @rmtadv: value of MII LPA register
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*
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* Resolve full duplex flow control as per IEEE 802.3-2005 table 28B-3
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*/
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static inline u8 mii_resolve_flowctrl_fdx(u16 lcladv, u16 rmtadv)
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{
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u8 cap = 0;
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if (lcladv & rmtadv & ADVERTISE_PAUSE_CAP) {
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cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
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} else if (lcladv & rmtadv & ADVERTISE_PAUSE_ASYM) {
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if (lcladv & ADVERTISE_PAUSE_CAP)
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cap = FLOW_CTRL_RX;
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else if (rmtadv & ADVERTISE_PAUSE_CAP)
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cap = FLOW_CTRL_TX;
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}
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return cap;
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}
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#endif /* __LINUX_MII_H__ */
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