mirror of https://gitee.com/openkylin/linux.git
126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/*
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* Marvell 88E6xxx VLAN [Spanning Tree] Translation Unit (VTU [STU]) support
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*
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* Copyright (c) 2008 Marvell Semiconductor
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* Copyright (c) 2015 CMC Electronics, Inc.
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* Copyright (c) 2017 Savoir-faire Linux, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include "mv88e6xxx.h"
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#include "global1.h"
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/* Offset 0x02: VTU FID Register */
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int mv88e6xxx_g1_vtu_fid_read(struct mv88e6xxx_chip *chip,
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struct mv88e6xxx_vtu_entry *entry)
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{
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u16 val;
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int err;
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err = mv88e6xxx_g1_read(chip, GLOBAL_VTU_FID, &val);
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if (err)
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return err;
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entry->fid = val & GLOBAL_VTU_FID_MASK;
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return 0;
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}
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int mv88e6xxx_g1_vtu_fid_write(struct mv88e6xxx_chip *chip,
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struct mv88e6xxx_vtu_entry *entry)
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{
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u16 val = entry->fid & GLOBAL_VTU_FID_MASK;
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return mv88e6xxx_g1_write(chip, GLOBAL_VTU_FID, val);
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}
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/* Offset 0x03: VTU SID Register */
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int mv88e6xxx_g1_vtu_sid_read(struct mv88e6xxx_chip *chip,
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struct mv88e6xxx_vtu_entry *entry)
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{
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u16 val;
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int err;
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err = mv88e6xxx_g1_read(chip, GLOBAL_VTU_SID, &val);
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if (err)
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return err;
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entry->sid = val & GLOBAL_VTU_SID_MASK;
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return 0;
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}
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int mv88e6xxx_g1_vtu_sid_write(struct mv88e6xxx_chip *chip,
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struct mv88e6xxx_vtu_entry *entry)
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{
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u16 val = entry->sid & GLOBAL_VTU_SID_MASK;
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return mv88e6xxx_g1_write(chip, GLOBAL_VTU_SID, val);
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}
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/* Offset 0x05: VTU Operation Register */
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int mv88e6xxx_g1_vtu_op_wait(struct mv88e6xxx_chip *chip)
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{
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return mv88e6xxx_g1_wait(chip, GLOBAL_VTU_OP, GLOBAL_VTU_OP_BUSY);
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}
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int mv88e6xxx_g1_vtu_op(struct mv88e6xxx_chip *chip, u16 op)
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{
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int err;
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err = mv88e6xxx_g1_write(chip, GLOBAL_VTU_OP, op);
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if (err)
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return err;
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return mv88e6xxx_g1_vtu_op_wait(chip);
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}
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/* Offset 0x06: VTU VID Register */
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int mv88e6xxx_g1_vtu_vid_read(struct mv88e6xxx_chip *chip,
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struct mv88e6xxx_vtu_entry *entry)
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{
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u16 val;
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int err;
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err = mv88e6xxx_g1_read(chip, GLOBAL_VTU_VID, &val);
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if (err)
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return err;
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entry->vid = val & 0xfff;
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entry->valid = !!(val & GLOBAL_VTU_VID_VALID);
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return 0;
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}
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int mv88e6xxx_g1_vtu_vid_write(struct mv88e6xxx_chip *chip,
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struct mv88e6xxx_vtu_entry *entry)
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{
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u16 val = entry->vid & 0xfff;
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if (entry->valid)
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val |= GLOBAL_VTU_VID_VALID;
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return mv88e6xxx_g1_write(chip, GLOBAL_VTU_VID, val);
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}
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/* VLAN Translation Unit Operations */
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int mv88e6xxx_g1_vtu_flush(struct mv88e6xxx_chip *chip)
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{
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int err;
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err = mv88e6xxx_g1_vtu_op_wait(chip);
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if (err)
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return err;
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return mv88e6xxx_g1_vtu_op(chip, GLOBAL_VTU_OP_FLUSH_ALL);
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}
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