ixgbe: Update link flow control to correctly handle multiple packet buffer DCB

[deliverable/linux.git] / drivers / net / ethernet / intel / ixgbe / ixgbe_phy.h

/*******************************************************************************

  Intel 10 Gigabit PCI Express Linux driver
  Copyright(c) 1999 - 2012 Intel Corporation.

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information:
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

#ifndef _IXGBE_PHY_H_
#define _IXGBE_PHY_H_

#include "ixgbe_type.h"
#define IXGBE_I2C_EEPROM_DEV_ADDR    0xA0

/* EEPROM byte offsets */
#define IXGBE_SFF_IDENTIFIER         0x0
#define IXGBE_SFF_IDENTIFIER_SFP     0x3
#define IXGBE_SFF_VENDOR_OUI_BYTE0   0x25
#define IXGBE_SFF_VENDOR_OUI_BYTE1   0x26
#define IXGBE_SFF_VENDOR_OUI_BYTE2   0x27
#define IXGBE_SFF_1GBE_COMP_CODES    0x6
#define IXGBE_SFF_10GBE_COMP_CODES   0x3
#define IXGBE_SFF_CABLE_TECHNOLOGY   0x8
#define IXGBE_SFF_CABLE_SPEC_COMP    0x3C

/* Bitmasks */
#define IXGBE_SFF_DA_PASSIVE_CABLE           0x4
#define IXGBE_SFF_DA_ACTIVE_CABLE            0x8
#define IXGBE_SFF_DA_SPEC_ACTIVE_LIMITING    0x4
#define IXGBE_SFF_1GBASESX_CAPABLE           0x1
#define IXGBE_SFF_1GBASELX_CAPABLE           0x2
#define IXGBE_SFF_1GBASET_CAPABLE            0x8
#define IXGBE_SFF_10GBASESR_CAPABLE          0x10
#define IXGBE_SFF_10GBASELR_CAPABLE          0x20
#define IXGBE_I2C_EEPROM_READ_MASK           0x100
#define IXGBE_I2C_EEPROM_STATUS_MASK         0x3
#define IXGBE_I2C_EEPROM_STATUS_NO_OPERATION 0x0
#define IXGBE_I2C_EEPROM_STATUS_PASS         0x1
#define IXGBE_I2C_EEPROM_STATUS_FAIL         0x2
#define IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS  0x3

/* Flow control defines */
#define IXGBE_TAF_SYM_PAUSE                  0x400
#define IXGBE_TAF_ASM_PAUSE                  0x800

/* Bit-shift macros */
#define IXGBE_SFF_VENDOR_OUI_BYTE0_SHIFT    24
#define IXGBE_SFF_VENDOR_OUI_BYTE1_SHIFT    16
#define IXGBE_SFF_VENDOR_OUI_BYTE2_SHIFT    8

/* Vendor OUIs: format of OUI is 0x[byte0][byte1][byte2][00] */
#define IXGBE_SFF_VENDOR_OUI_TYCO     0x00407600
#define IXGBE_SFF_VENDOR_OUI_FTL      0x00906500
#define IXGBE_SFF_VENDOR_OUI_AVAGO    0x00176A00
#define IXGBE_SFF_VENDOR_OUI_INTEL    0x001B2100

/* I2C SDA and SCL timing parameters for standard mode */
#define IXGBE_I2C_T_HD_STA  4
#define IXGBE_I2C_T_LOW     5
#define IXGBE_I2C_T_HIGH    4
#define IXGBE_I2C_T_SU_STA  5
#define IXGBE_I2C_T_HD_DATA 5
#define IXGBE_I2C_T_SU_DATA 1
#define IXGBE_I2C_T_RISE    1
#define IXGBE_I2C_T_FALL    1
#define IXGBE_I2C_T_SU_STO  4
#define IXGBE_I2C_T_BUF     5

#define IXGBE_TN_LASI_STATUS_REG        0x9005
#define IXGBE_TN_LASI_STATUS_TEMP_ALARM 0x0008

s32 ixgbe_init_phy_ops_generic(struct ixgbe_hw *hw);
s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw);
s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw);
s32 ixgbe_read_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
                               u32 device_type, u16 *phy_data);
s32 ixgbe_write_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
                                u32 device_type, u16 phy_data);
s32 ixgbe_setup_phy_link_generic(struct ixgbe_hw *hw);
s32 ixgbe_setup_phy_link_speed_generic(struct ixgbe_hw *hw,
                                       ixgbe_link_speed speed,
                                       bool autoneg,
                                       bool autoneg_wait_to_complete);
s32 ixgbe_get_copper_link_capabilities_generic(struct ixgbe_hw *hw,
                                               ixgbe_link_speed *speed,
                                               bool *autoneg);

/* PHY specific */
s32 ixgbe_check_phy_link_tnx(struct ixgbe_hw *hw,
                             ixgbe_link_speed *speed,
                             bool *link_up);
s32 ixgbe_setup_phy_link_tnx(struct ixgbe_hw *hw);
s32 ixgbe_get_phy_firmware_version_tnx(struct ixgbe_hw *hw,
                                       u16 *firmware_version);
s32 ixgbe_get_phy_firmware_version_generic(struct ixgbe_hw *hw,
                                           u16 *firmware_version);

s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw);
s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
                                        u16 *list_offset,
                                        u16 *data_offset);
s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
                                u8 dev_addr, u8 *data);
s32 ixgbe_write_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
                                 u8 dev_addr, u8 data);
s32 ixgbe_read_i2c_eeprom_generic(struct ixgbe_hw *hw, u8 byte_offset,
                                  u8 *eeprom_data);
s32 ixgbe_write_i2c_eeprom_generic(struct ixgbe_hw *hw, u8 byte_offset,
                                   u8 eeprom_data);
#endif /* _IXGBE_PHY_H_ */