529 lines
16 KiB
C
529 lines
16 KiB
C
/* atl2.h -- atl2 driver definitions
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*
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* Copyright(c) 2007 Atheros Corporation. All rights reserved.
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* Copyright(c) 2006 xiong huang <xiong.huang@atheros.com>
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* Copyright(c) 2007 Chris Snook <csnook@redhat.com>
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*
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* Derived from Intel e1000 driver
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* Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _ATL2_H_
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#define _ATL2_H_
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#include <asm/atomic.h>
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#include <linux/netdevice.h>
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#ifndef _ATL2_HW_H_
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#define _ATL2_HW_H_
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#ifndef _ATL2_OSDEP_H_
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#define _ATL2_OSDEP_H_
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/if_ether.h>
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#include "atlx.h"
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#ifdef ETHTOOL_OPS_COMPAT
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extern int ethtool_ioctl(struct ifreq *ifr);
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#endif
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#define PCI_COMMAND_REGISTER PCI_COMMAND
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#define CMD_MEM_WRT_INVALIDATE PCI_COMMAND_INVALIDATE
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#define ETH_ADDR_LEN ETH_ALEN
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#define ATL2_WRITE_REG(a, reg, value) (iowrite32((value), \
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((a)->hw_addr + (reg))))
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#define ATL2_WRITE_FLUSH(a) (ioread32((a)->hw_addr))
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#define ATL2_READ_REG(a, reg) (ioread32((a)->hw_addr + (reg)))
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#define ATL2_WRITE_REGB(a, reg, value) (iowrite8((value), \
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((a)->hw_addr + (reg))))
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#define ATL2_READ_REGB(a, reg) (ioread8((a)->hw_addr + (reg)))
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#define ATL2_WRITE_REGW(a, reg, value) (iowrite16((value), \
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((a)->hw_addr + (reg))))
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#define ATL2_READ_REGW(a, reg) (ioread16((a)->hw_addr + (reg)))
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#define ATL2_WRITE_REG_ARRAY(a, reg, offset, value) \
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(iowrite32((value), (((a)->hw_addr + (reg)) + ((offset) << 2))))
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#define ATL2_READ_REG_ARRAY(a, reg, offset) \
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(ioread32(((a)->hw_addr + (reg)) + ((offset) << 2)))
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#endif /* _ATL2_OSDEP_H_ */
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struct atl2_adapter;
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struct atl2_hw;
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/* function prototype */
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static s32 atl2_reset_hw(struct atl2_hw *hw);
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static s32 atl2_read_mac_addr(struct atl2_hw *hw);
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static s32 atl2_init_hw(struct atl2_hw *hw);
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static s32 atl2_get_speed_and_duplex(struct atl2_hw *hw, u16 *speed,
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u16 *duplex);
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static u32 atl2_hash_mc_addr(struct atl2_hw *hw, u8 *mc_addr);
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static void atl2_hash_set(struct atl2_hw *hw, u32 hash_value);
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static s32 atl2_read_phy_reg(struct atl2_hw *hw, u16 reg_addr, u16 *phy_data);
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static s32 atl2_write_phy_reg(struct atl2_hw *hw, u32 reg_addr, u16 phy_data);
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static void atl2_read_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value);
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static void atl2_write_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value);
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static void atl2_set_mac_addr(struct atl2_hw *hw);
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static bool atl2_read_eeprom(struct atl2_hw *hw, u32 Offset, u32 *pValue);
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static bool atl2_write_eeprom(struct atl2_hw *hw, u32 offset, u32 value);
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static s32 atl2_phy_init(struct atl2_hw *hw);
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static int atl2_check_eeprom_exist(struct atl2_hw *hw);
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static void atl2_force_ps(struct atl2_hw *hw);
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/* register definition */
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/* Block IDLE Status Register */
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#define IDLE_STATUS_RXMAC 1 /* 1: RXMAC is non-IDLE */
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#define IDLE_STATUS_TXMAC 2 /* 1: TXMAC is non-IDLE */
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#define IDLE_STATUS_DMAR 8 /* 1: DMAR is non-IDLE */
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#define IDLE_STATUS_DMAW 4 /* 1: DMAW is non-IDLE */
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/* MDIO Control Register */
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#define MDIO_WAIT_TIMES 10
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/* MAC Control Register */
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#define MAC_CTRL_DBG_TX_BKPRESURE 0x100000 /* 1: TX max backoff */
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#define MAC_CTRL_MACLP_CLK_PHY 0x8000000 /* 1: 25MHz from phy */
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#define MAC_CTRL_HALF_LEFT_BUF_SHIFT 28
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#define MAC_CTRL_HALF_LEFT_BUF_MASK 0xF /* MAC retry buf x32B */
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/* Internal SRAM Partition Register */
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#define REG_SRAM_TXRAM_END 0x1500 /* Internal tail address of TXRAM
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* default: 2byte*1024 */
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#define REG_SRAM_RXRAM_END 0x1502 /* Internal tail address of RXRAM
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* default: 2byte*1024 */
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/* Descriptor Control register */
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#define REG_TXD_BASE_ADDR_LO 0x1544 /* The base address of the Transmit
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* Data Mem low 32-bit(dword align) */
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#define REG_TXD_MEM_SIZE 0x1548 /* Transmit Data Memory size(by
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* double word , max 256KB) */
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#define REG_TXS_BASE_ADDR_LO 0x154C /* The base address of the Transmit
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* Status Memory low 32-bit(dword word
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* align) */
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#define REG_TXS_MEM_SIZE 0x1550 /* double word unit, max 4*2047
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* bytes. */
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#define REG_RXD_BASE_ADDR_LO 0x1554 /* The base address of the Transmit
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* Status Memory low 32-bit(unit 8
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* bytes) */
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#define REG_RXD_BUF_NUM 0x1558 /* Receive Data & Status Memory buffer
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* number (unit 1536bytes, max
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* 1536*2047) */
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/* DMAR Control Register */
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#define REG_DMAR 0x1580
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#define DMAR_EN 0x1 /* 1: Enable DMAR */
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/* TX Cur-Through (early tx threshold) Control Register */
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#define REG_TX_CUT_THRESH 0x1590 /* TxMac begin transmit packet
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* threshold(unit word) */
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/* DMAW Control Register */
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#define REG_DMAW 0x15A0
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#define DMAW_EN 0x1
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/* Flow control register */
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#define REG_PAUSE_ON_TH 0x15A8 /* RXD high watermark of overflow
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* threshold configuration register */
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#define REG_PAUSE_OFF_TH 0x15AA /* RXD lower watermark of overflow
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* threshold configuration register */
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/* Mailbox Register */
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#define REG_MB_TXD_WR_IDX 0x15f0 /* double word align */
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#define REG_MB_RXD_RD_IDX 0x15F4 /* RXD Read index (unit: 1536byets) */
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/* Interrupt Status Register */
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#define ISR_TIMER 1 /* Interrupt when Timer counts down to zero */
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#define ISR_MANUAL 2 /* Software manual interrupt, for debug. Set
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* when SW_MAN_INT_EN is set in Table 51
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* Selene Master Control Register
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* (Offset 0x1400). */
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#define ISR_RXF_OV 4 /* RXF overflow interrupt */
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#define ISR_TXF_UR 8 /* TXF underrun interrupt */
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#define ISR_TXS_OV 0x10 /* Internal transmit status buffer full
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* interrupt */
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#define ISR_RXS_OV 0x20 /* Internal receive status buffer full
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* interrupt */
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#define ISR_LINK_CHG 0x40 /* Link Status Change Interrupt */
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#define ISR_HOST_TXD_UR 0x80
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#define ISR_HOST_RXD_OV 0x100 /* Host rx data memory full , one pulse */
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#define ISR_DMAR_TO_RST 0x200 /* DMAR op timeout interrupt. SW should
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* do Reset */
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#define ISR_DMAW_TO_RST 0x400
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#define ISR_PHY 0x800 /* phy interrupt */
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#define ISR_TS_UPDATE 0x10000 /* interrupt after new tx pkt status written
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* to host */
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#define ISR_RS_UPDATE 0x20000 /* interrupt ater new rx pkt status written
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* to host. */
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#define ISR_TX_EARLY 0x40000 /* interrupt when txmac begin transmit one
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* packet */
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#define ISR_TX_EVENT (ISR_TXF_UR | ISR_TXS_OV | ISR_HOST_TXD_UR |\
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ISR_TS_UPDATE | ISR_TX_EARLY)
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#define ISR_RX_EVENT (ISR_RXF_OV | ISR_RXS_OV | ISR_HOST_RXD_OV |\
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ISR_RS_UPDATE)
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#define IMR_NORMAL_MASK (\
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/*ISR_LINK_CHG |*/\
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ISR_MANUAL |\
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ISR_DMAR_TO_RST |\
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ISR_DMAW_TO_RST |\
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ISR_PHY |\
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ISR_PHY_LINKDOWN |\
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ISR_TS_UPDATE |\
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ISR_RS_UPDATE)
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/* Receive MAC Statistics Registers */
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#define REG_STS_RX_PAUSE 0x1700 /* Num pause packets received */
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#define REG_STS_RXD_OV 0x1704 /* Num frames dropped due to RX
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* FIFO overflow */
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#define REG_STS_RXS_OV 0x1708 /* Num frames dropped due to RX
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* Status Buffer Overflow */
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#define REG_STS_RX_FILTER 0x170C /* Num packets dropped due to
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* address filtering */
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/* MII definitions */
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/* PHY Common Register */
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#define MII_SMARTSPEED 0x14
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#define MII_DBG_ADDR 0x1D
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#define MII_DBG_DATA 0x1E
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/* PCI Command Register Bit Definitions */
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#define PCI_REG_COMMAND 0x04
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#define CMD_IO_SPACE 0x0001
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#define CMD_MEMORY_SPACE 0x0002
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#define CMD_BUS_MASTER 0x0004
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#define MEDIA_TYPE_100M_FULL 1
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#define MEDIA_TYPE_100M_HALF 2
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#define MEDIA_TYPE_10M_FULL 3
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#define MEDIA_TYPE_10M_HALF 4
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#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x000F /* Everything */
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/* The size (in bytes) of a ethernet packet */
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#define ENET_HEADER_SIZE 14
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#define MAXIMUM_ETHERNET_FRAME_SIZE 1518 /* with FCS */
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#define MINIMUM_ETHERNET_FRAME_SIZE 64 /* with FCS */
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#define ETHERNET_FCS_SIZE 4
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#define MAX_JUMBO_FRAME_SIZE 0x2000
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#define VLAN_SIZE 4
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struct tx_pkt_header {
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unsigned pkt_size:11;
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unsigned:4; /* reserved */
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unsigned ins_vlan:1; /* txmac should insert vlan */
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unsigned short vlan; /* vlan tag */
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};
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/* FIXME: replace above bitfields with MASK/SHIFT defines below */
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#define TX_PKT_HEADER_SIZE_MASK 0x7FF
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#define TX_PKT_HEADER_SIZE_SHIFT 0
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#define TX_PKT_HEADER_INS_VLAN_MASK 0x1
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#define TX_PKT_HEADER_INS_VLAN_SHIFT 15
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#define TX_PKT_HEADER_VLAN_TAG_MASK 0xFFFF
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#define TX_PKT_HEADER_VLAN_TAG_SHIFT 16
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struct tx_pkt_status {
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unsigned pkt_size:11;
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unsigned:5; /* reserved */
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unsigned ok:1; /* current packet transmitted without error */
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unsigned bcast:1; /* broadcast packet */
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unsigned mcast:1; /* multicast packet */
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unsigned pause:1; /* transmiited a pause frame */
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unsigned ctrl:1;
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unsigned defer:1; /* current packet is xmitted with defer */
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unsigned exc_defer:1;
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unsigned single_col:1;
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unsigned multi_col:1;
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unsigned late_col:1;
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unsigned abort_col:1;
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unsigned underun:1; /* current packet is aborted
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* due to txram underrun */
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unsigned:3; /* reserved */
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unsigned update:1; /* always 1'b1 in tx_status_buf */
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};
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/* FIXME: replace above bitfields with MASK/SHIFT defines below */
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#define TX_PKT_STATUS_SIZE_MASK 0x7FF
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#define TX_PKT_STATUS_SIZE_SHIFT 0
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#define TX_PKT_STATUS_OK_MASK 0x1
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#define TX_PKT_STATUS_OK_SHIFT 16
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#define TX_PKT_STATUS_BCAST_MASK 0x1
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#define TX_PKT_STATUS_BCAST_SHIFT 17
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#define TX_PKT_STATUS_MCAST_MASK 0x1
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#define TX_PKT_STATUS_MCAST_SHIFT 18
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#define TX_PKT_STATUS_PAUSE_MASK 0x1
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#define TX_PKT_STATUS_PAUSE_SHIFT 19
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#define TX_PKT_STATUS_CTRL_MASK 0x1
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#define TX_PKT_STATUS_CTRL_SHIFT 20
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#define TX_PKT_STATUS_DEFER_MASK 0x1
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#define TX_PKT_STATUS_DEFER_SHIFT 21
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#define TX_PKT_STATUS_EXC_DEFER_MASK 0x1
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#define TX_PKT_STATUS_EXC_DEFER_SHIFT 22
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#define TX_PKT_STATUS_SINGLE_COL_MASK 0x1
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#define TX_PKT_STATUS_SINGLE_COL_SHIFT 23
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#define TX_PKT_STATUS_MULTI_COL_MASK 0x1
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#define TX_PKT_STATUS_MULTI_COL_SHIFT 24
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#define TX_PKT_STATUS_LATE_COL_MASK 0x1
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#define TX_PKT_STATUS_LATE_COL_SHIFT 25
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#define TX_PKT_STATUS_ABORT_COL_MASK 0x1
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#define TX_PKT_STATUS_ABORT_COL_SHIFT 26
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#define TX_PKT_STATUS_UNDERRUN_MASK 0x1
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#define TX_PKT_STATUS_UNDERRUN_SHIFT 27
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#define TX_PKT_STATUS_UPDATE_MASK 0x1
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#define TX_PKT_STATUS_UPDATE_SHIFT 31
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struct rx_pkt_status {
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unsigned pkt_size:11; /* packet size, max 2047 bytes */
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unsigned:5; /* reserved */
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unsigned ok:1; /* current packet received ok without error */
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unsigned bcast:1; /* current packet is broadcast */
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unsigned mcast:1; /* current packet is multicast */
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unsigned pause:1;
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unsigned ctrl:1;
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unsigned crc:1; /* received a packet with crc error */
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unsigned code:1; /* received a packet with code error */
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unsigned runt:1; /* received a packet less than 64 bytes
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* with good crc */
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unsigned frag:1; /* received a packet less than 64 bytes
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* with bad crc */
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unsigned trunc:1; /* current frame truncated due to rxram full */
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unsigned align:1; /* this packet is alignment error */
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unsigned vlan:1; /* this packet has vlan */
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unsigned:3; /* reserved */
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unsigned update:1;
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unsigned short vtag; /* vlan tag */
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unsigned:16;
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};
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/* FIXME: replace above bitfields with MASK/SHIFT defines below */
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#define RX_PKT_STATUS_SIZE_MASK 0x7FF
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#define RX_PKT_STATUS_SIZE_SHIFT 0
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#define RX_PKT_STATUS_OK_MASK 0x1
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#define RX_PKT_STATUS_OK_SHIFT 16
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#define RX_PKT_STATUS_BCAST_MASK 0x1
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#define RX_PKT_STATUS_BCAST_SHIFT 17
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#define RX_PKT_STATUS_MCAST_MASK 0x1
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#define RX_PKT_STATUS_MCAST_SHIFT 18
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#define RX_PKT_STATUS_PAUSE_MASK 0x1
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#define RX_PKT_STATUS_PAUSE_SHIFT 19
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#define RX_PKT_STATUS_CTRL_MASK 0x1
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#define RX_PKT_STATUS_CTRL_SHIFT 20
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#define RX_PKT_STATUS_CRC_MASK 0x1
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#define RX_PKT_STATUS_CRC_SHIFT 21
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#define RX_PKT_STATUS_CODE_MASK 0x1
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#define RX_PKT_STATUS_CODE_SHIFT 22
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#define RX_PKT_STATUS_RUNT_MASK 0x1
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#define RX_PKT_STATUS_RUNT_SHIFT 23
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#define RX_PKT_STATUS_FRAG_MASK 0x1
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#define RX_PKT_STATUS_FRAG_SHIFT 24
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#define RX_PKT_STATUS_TRUNK_MASK 0x1
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#define RX_PKT_STATUS_TRUNK_SHIFT 25
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#define RX_PKT_STATUS_ALIGN_MASK 0x1
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#define RX_PKT_STATUS_ALIGN_SHIFT 26
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#define RX_PKT_STATUS_VLAN_MASK 0x1
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#define RX_PKT_STATUS_VLAN_SHIFT 27
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#define RX_PKT_STATUS_UPDATE_MASK 0x1
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#define RX_PKT_STATUS_UPDATE_SHIFT 31
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#define RX_PKT_STATUS_VLAN_TAG_MASK 0xFFFF
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#define RX_PKT_STATUS_VLAN_TAG_SHIFT 32
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struct rx_desc {
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struct rx_pkt_status status;
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unsigned char packet[1536-sizeof(struct rx_pkt_status)];
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};
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enum atl2_speed_duplex {
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atl2_10_half = 0,
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atl2_10_full = 1,
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atl2_100_half = 2,
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atl2_100_full = 3
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};
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struct atl2_spi_flash_dev {
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const char *manu_name; /* manufacturer id */
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/* op-code */
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u8 cmdWRSR;
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u8 cmdREAD;
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u8 cmdPROGRAM;
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u8 cmdWREN;
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u8 cmdWRDI;
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u8 cmdRDSR;
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u8 cmdRDID;
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u8 cmdSECTOR_ERASE;
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u8 cmdCHIP_ERASE;
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};
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/* Structure containing variables used by the shared code (atl2_hw.c) */
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struct atl2_hw {
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u8 __iomem *hw_addr;
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void *back;
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u8 preamble_len;
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u8 max_retry; /* Retransmission maximum, afterwards the
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* packet will be discarded. */
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u8 jam_ipg; /* IPG to start JAM for collision based flow
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* control in half-duplex mode. In unit of
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* 8-bit time. */
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u8 ipgt; /* Desired back to back inter-packet gap. The
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* default is 96-bit time. */
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u8 min_ifg; /* Minimum number of IFG to enforce in between
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* RX frames. Frame gap below such IFP is
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* dropped. */
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u8 ipgr1; /* 64bit Carrier-Sense window */
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u8 ipgr2; /* 96-bit IPG window */
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u8 retry_buf; /* When half-duplex mode, should hold some
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* bytes for mac retry . (8*4bytes unit) */
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u16 fc_rxd_hi;
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u16 fc_rxd_lo;
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u16 lcol; /* Collision Window */
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u16 max_frame_size;
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u16 MediaType;
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u16 autoneg_advertised;
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u16 pci_cmd_word;
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u16 mii_autoneg_adv_reg;
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u32 mem_rang;
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u32 txcw;
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u32 mc_filter_type;
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u32 num_mc_addrs;
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u32 collision_delta;
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u32 tx_packet_delta;
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u16 phy_spd_default;
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u16 device_id;
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u16 vendor_id;
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u16 subsystem_id;
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u16 subsystem_vendor_id;
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u8 revision_id;
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/* spi flash */
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u8 flash_vendor;
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u8 dma_fairness;
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u8 mac_addr[NODE_ADDRESS_SIZE];
|
|
u8 perm_mac_addr[NODE_ADDRESS_SIZE];
|
|
|
|
/* FIXME */
|
|
/* bool phy_preamble_sup; */
|
|
bool phy_configured;
|
|
};
|
|
|
|
#endif /* _ATL2_HW_H_ */
|
|
|
|
struct atl2_ring_header {
|
|
/* pointer to the descriptor ring memory */
|
|
void *desc;
|
|
/* physical adress of the descriptor ring */
|
|
dma_addr_t dma;
|
|
/* length of descriptor ring in bytes */
|
|
unsigned int size;
|
|
};
|
|
|
|
/* board specific private data structure */
|
|
struct atl2_adapter {
|
|
/* OS defined structs */
|
|
struct net_device *netdev;
|
|
struct pci_dev *pdev;
|
|
#ifdef NETIF_F_HW_VLAN_TX
|
|
struct vlan_group *vlgrp;
|
|
#endif
|
|
u32 wol;
|
|
u16 link_speed;
|
|
u16 link_duplex;
|
|
|
|
spinlock_t stats_lock;
|
|
|
|
struct work_struct reset_task;
|
|
struct work_struct link_chg_task;
|
|
struct timer_list watchdog_timer;
|
|
struct timer_list phy_config_timer;
|
|
|
|
unsigned long cfg_phy;
|
|
bool mac_disabled;
|
|
|
|
/* All Descriptor memory */
|
|
dma_addr_t ring_dma;
|
|
void *ring_vir_addr;
|
|
int ring_size;
|
|
|
|
struct tx_pkt_header *txd_ring;
|
|
dma_addr_t txd_dma;
|
|
|
|
struct tx_pkt_status *txs_ring;
|
|
dma_addr_t txs_dma;
|
|
|
|
struct rx_desc *rxd_ring;
|
|
dma_addr_t rxd_dma;
|
|
|
|
u32 txd_ring_size; /* bytes per unit */
|
|
u32 txs_ring_size; /* dwords per unit */
|
|
u32 rxd_ring_size; /* 1536 bytes per unit */
|
|
|
|
/* read /write ptr: */
|
|
/* host */
|
|
u32 txd_write_ptr;
|
|
u32 txs_next_clear;
|
|
u32 rxd_read_ptr;
|
|
|
|
/* nic */
|
|
atomic_t txd_read_ptr;
|
|
atomic_t txs_write_ptr;
|
|
u32 rxd_write_ptr;
|
|
|
|
/* Interrupt Moderator timer ( 2us resolution) */
|
|
u16 imt;
|
|
/* Interrupt Clear timer (2us resolution) */
|
|
u16 ict;
|
|
|
|
unsigned long flags;
|
|
/* structs defined in atl2_hw.h */
|
|
u32 bd_number; /* board number */
|
|
bool pci_using_64;
|
|
bool have_msi;
|
|
struct atl2_hw hw;
|
|
|
|
u32 usr_cmd;
|
|
/* FIXME */
|
|
/* u32 regs_buff[ATL2_REGS_LEN]; */
|
|
u32 pci_state[16];
|
|
|
|
u32 *config_space;
|
|
};
|
|
|
|
enum atl2_state_t {
|
|
__ATL2_TESTING,
|
|
__ATL2_RESETTING,
|
|
__ATL2_DOWN
|
|
};
|
|
|
|
#endif /* _ATL2_H_ */
|