net: skb_shared_info optimization

[linux-2.6/verdex.git] / drivers / net / smsc911x.h

/***************************************************************************
 *
 * Copyright (C) 2004-2008 SMSC
 * Copyright (C) 2005-2008 ARM
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 ***************************************************************************/
#ifndef __SMSC911X_H__
#define __SMSC911X_H__

#define TX_FIFO_LOW_THRESHOLD   ((u32)1600)
#define SMSC911X_EEPROM_SIZE    ((u32)7)
#define USE_DEBUG               0

/* This is the maximum number of packets to be received every
 * NAPI poll */
#define SMSC_NAPI_WEIGHT        16

/* implements a PHY loopback test at initialisation time, to ensure a packet
 * can be succesfully looped back */
#define USE_PHY_WORK_AROUND

#define DPRINTK(nlevel, klevel, fmt, args...) \
        ((void)((NETIF_MSG_##nlevel & pdata->msg_enable) && \
        printk(KERN_##klevel "%s: %s: " fmt "\n", \
        pdata->dev->name, __func__, ## args)))

#if USE_DEBUG >= 1
#define SMSC_WARNING(nlevel, fmt, args...) \
        DPRINTK(nlevel, WARNING, fmt, ## args)
#else
#define SMSC_WARNING(nlevel, fmt, args...) \
        ({ do {} while (0); 0; })
#endif

#if USE_DEBUG >= 2
#define SMSC_TRACE(nlevel, fmt, args...) \
        DPRINTK(nlevel, INFO, fmt, ## args)
#else
#define SMSC_TRACE(nlevel, fmt, args...) \
        ({ do {} while (0); 0; })
#endif

#ifdef CONFIG_DEBUG_SPINLOCK
#define SMSC_ASSERT_MAC_LOCK(pdata) \
                WARN_ON(!spin_is_locked(&pdata->mac_lock))
#else
#define SMSC_ASSERT_MAC_LOCK(pdata) do {} while (0)
#endif                          /* CONFIG_DEBUG_SPINLOCK */

/* SMSC911x registers and bitfields */
#define RX_DATA_FIFO                    0x00

#define TX_DATA_FIFO                    0x20
#define TX_CMD_A_ON_COMP_               0x80000000
#define TX_CMD_A_BUF_END_ALGN_          0x03000000
#define TX_CMD_A_4_BYTE_ALGN_           0x00000000
#define TX_CMD_A_16_BYTE_ALGN_          0x01000000
#define TX_CMD_A_32_BYTE_ALGN_          0x02000000
#define TX_CMD_A_DATA_OFFSET_           0x001F0000
#define TX_CMD_A_FIRST_SEG_             0x00002000
#define TX_CMD_A_LAST_SEG_              0x00001000
#define TX_CMD_A_BUF_SIZE_              0x000007FF
#define TX_CMD_B_PKT_TAG_               0xFFFF0000
#define TX_CMD_B_ADD_CRC_DISABLE_       0x00002000
#define TX_CMD_B_DISABLE_PADDING_       0x00001000
#define TX_CMD_B_PKT_BYTE_LENGTH_       0x000007FF

#define RX_STATUS_FIFO                  0x40
#define RX_STS_ES_                      0x00008000
#define RX_STS_LENGTH_ERR_              0x00001000
#define RX_STS_MCAST_                   0x00000400
#define RX_STS_FRAME_TYPE_              0x00000020
#define RX_STS_CRC_ERR_                 0x00000002

#define RX_STATUS_FIFO_PEEK             0x44

#define TX_STATUS_FIFO                  0x48
#define TX_STS_ES_                      0x00008000
#define TX_STS_LOST_CARRIER_            0x00000800
#define TX_STS_NO_CARRIER_              0x00000400
#define TX_STS_LATE_COL_                0x00000200
#define TX_STS_EXCESS_COL_              0x00000100

#define TX_STATUS_FIFO_PEEK             0x4C

#define ID_REV                          0x50
#define ID_REV_CHIP_ID_                 0xFFFF0000
#define ID_REV_REV_ID_                  0x0000FFFF

#define INT_CFG                         0x54
#define INT_CFG_INT_DEAS_               0xFF000000
#define INT_CFG_INT_DEAS_CLR_           0x00004000
#define INT_CFG_INT_DEAS_STS_           0x00002000
#define INT_CFG_IRQ_INT_                0x00001000
#define INT_CFG_IRQ_EN_                 0x00000100
#define INT_CFG_IRQ_POL_                0x00000010
#define INT_CFG_IRQ_TYPE_               0x00000001

#define INT_STS                         0x58
#define INT_STS_SW_INT_                 0x80000000
#define INT_STS_TXSTOP_INT_             0x02000000
#define INT_STS_RXSTOP_INT_             0x01000000
#define INT_STS_RXDFH_INT_              0x00800000
#define INT_STS_RXDF_INT_               0x00400000
#define INT_STS_TX_IOC_                 0x00200000
#define INT_STS_RXD_INT_                0x00100000
#define INT_STS_GPT_INT_                0x00080000
#define INT_STS_PHY_INT_                0x00040000
#define INT_STS_PME_INT_                0x00020000
#define INT_STS_TXSO_                   0x00010000
#define INT_STS_RWT_                    0x00008000
#define INT_STS_RXE_                    0x00004000
#define INT_STS_TXE_                    0x00002000
#define INT_STS_TDFU_                   0x00000800
#define INT_STS_TDFO_                   0x00000400
#define INT_STS_TDFA_                   0x00000200
#define INT_STS_TSFF_                   0x00000100
#define INT_STS_TSFL_                   0x00000080
#define INT_STS_RXDF_                   0x00000040
#define INT_STS_RDFL_                   0x00000020
#define INT_STS_RSFF_                   0x00000010
#define INT_STS_RSFL_                   0x00000008
#define INT_STS_GPIO2_INT_              0x00000004
#define INT_STS_GPIO1_INT_              0x00000002
#define INT_STS_GPIO0_INT_              0x00000001

#define INT_EN                          0x5C
#define INT_EN_SW_INT_EN_               0x80000000
#define INT_EN_TXSTOP_INT_EN_           0x02000000
#define INT_EN_RXSTOP_INT_EN_           0x01000000
#define INT_EN_RXDFH_INT_EN_            0x00800000
#define INT_EN_TIOC_INT_EN_             0x00200000
#define INT_EN_RXD_INT_EN_              0x00100000
#define INT_EN_GPT_INT_EN_              0x00080000
#define INT_EN_PHY_INT_EN_              0x00040000
#define INT_EN_PME_INT_EN_              0x00020000
#define INT_EN_TXSO_EN_                 0x00010000
#define INT_EN_RWT_EN_                  0x00008000
#define INT_EN_RXE_EN_                  0x00004000
#define INT_EN_TXE_EN_                  0x00002000
#define INT_EN_TDFU_EN_                 0x00000800
#define INT_EN_TDFO_EN_                 0x00000400
#define INT_EN_TDFA_EN_                 0x00000200
#define INT_EN_TSFF_EN_                 0x00000100
#define INT_EN_TSFL_EN_                 0x00000080
#define INT_EN_RXDF_EN_                 0x00000040
#define INT_EN_RDFL_EN_                 0x00000020
#define INT_EN_RSFF_EN_                 0x00000010
#define INT_EN_RSFL_EN_                 0x00000008
#define INT_EN_GPIO2_INT_               0x00000004
#define INT_EN_GPIO1_INT_               0x00000002
#define INT_EN_GPIO0_INT_               0x00000001

#define BYTE_TEST                       0x64

#define FIFO_INT                        0x68
#define FIFO_INT_TX_AVAIL_LEVEL_        0xFF000000
#define FIFO_INT_TX_STS_LEVEL_          0x00FF0000
#define FIFO_INT_RX_AVAIL_LEVEL_        0x0000FF00
#define FIFO_INT_RX_STS_LEVEL_          0x000000FF

#define RX_CFG                          0x6C
#define RX_CFG_RX_END_ALGN_             0xC0000000
#define RX_CFG_RX_END_ALGN4_            0x00000000
#define RX_CFG_RX_END_ALGN16_           0x40000000
#define RX_CFG_RX_END_ALGN32_           0x80000000
#define RX_CFG_RX_DMA_CNT_              0x0FFF0000
#define RX_CFG_RX_DUMP_                 0x00008000
#define RX_CFG_RXDOFF_                  0x00001F00

#define TX_CFG                          0x70
#define TX_CFG_TXS_DUMP_                0x00008000
#define TX_CFG_TXD_DUMP_                0x00004000
#define TX_CFG_TXSAO_                   0x00000004
#define TX_CFG_TX_ON_                   0x00000002
#define TX_CFG_STOP_TX_                 0x00000001

#define HW_CFG                          0x74
#define HW_CFG_TTM_                     0x00200000
#define HW_CFG_SF_                      0x00100000
#define HW_CFG_TX_FIF_SZ_               0x000F0000
#define HW_CFG_TR_                      0x00003000
#define HW_CFG_SRST_                    0x00000001

/* only available on 115/117 */
#define HW_CFG_PHY_CLK_SEL_             0x00000060
#define HW_CFG_PHY_CLK_SEL_INT_PHY_     0x00000000
#define HW_CFG_PHY_CLK_SEL_EXT_PHY_     0x00000020
#define HW_CFG_PHY_CLK_SEL_CLK_DIS_     0x00000040
#define HW_CFG_SMI_SEL_                 0x00000010
#define HW_CFG_EXT_PHY_DET_             0x00000008
#define HW_CFG_EXT_PHY_EN_              0x00000004
#define HW_CFG_SRST_TO_                 0x00000002

/* only available  on 116/118 */
#define HW_CFG_32_16_BIT_MODE_          0x00000004

#define RX_DP_CTRL                      0x78
#define RX_DP_CTRL_RX_FFWD_             0x80000000

#define RX_FIFO_INF                     0x7C
#define RX_FIFO_INF_RXSUSED_            0x00FF0000
#define RX_FIFO_INF_RXDUSED_            0x0000FFFF

#define TX_FIFO_INF                     0x80
#define TX_FIFO_INF_TSUSED_             0x00FF0000
#define TX_FIFO_INF_TDFREE_             0x0000FFFF

#define PMT_CTRL                        0x84
#define PMT_CTRL_PM_MODE_               0x00003000
#define PMT_CTRL_PM_MODE_D0_            0x00000000
#define PMT_CTRL_PM_MODE_D1_            0x00001000
#define PMT_CTRL_PM_MODE_D2_            0x00002000
#define PMT_CTRL_PM_MODE_D3_            0x00003000
#define PMT_CTRL_PHY_RST_               0x00000400
#define PMT_CTRL_WOL_EN_                0x00000200
#define PMT_CTRL_ED_EN_                 0x00000100
#define PMT_CTRL_PME_TYPE_              0x00000040
#define PMT_CTRL_WUPS_                  0x00000030
#define PMT_CTRL_WUPS_NOWAKE_           0x00000000
#define PMT_CTRL_WUPS_ED_               0x00000010
#define PMT_CTRL_WUPS_WOL_              0x00000020
#define PMT_CTRL_WUPS_MULTI_            0x00000030
#define PMT_CTRL_PME_IND_               0x00000008
#define PMT_CTRL_PME_POL_               0x00000004
#define PMT_CTRL_PME_EN_                0x00000002
#define PMT_CTRL_READY_                 0x00000001

#define GPIO_CFG                        0x88
#define GPIO_CFG_LED3_EN_               0x40000000
#define GPIO_CFG_LED2_EN_               0x20000000
#define GPIO_CFG_LED1_EN_               0x10000000
#define GPIO_CFG_GPIO2_INT_POL_         0x04000000
#define GPIO_CFG_GPIO1_INT_POL_         0x02000000
#define GPIO_CFG_GPIO0_INT_POL_         0x01000000
#define GPIO_CFG_EEPR_EN_               0x00700000
#define GPIO_CFG_GPIOBUF2_              0x00040000
#define GPIO_CFG_GPIOBUF1_              0x00020000
#define GPIO_CFG_GPIOBUF0_              0x00010000
#define GPIO_CFG_GPIODIR2_              0x00000400
#define GPIO_CFG_GPIODIR1_              0x00000200
#define GPIO_CFG_GPIODIR0_              0x00000100
#define GPIO_CFG_GPIOD4_                0x00000020
#define GPIO_CFG_GPIOD3_                0x00000010
#define GPIO_CFG_GPIOD2_                0x00000004
#define GPIO_CFG_GPIOD1_                0x00000002
#define GPIO_CFG_GPIOD0_                0x00000001

#define GPT_CFG                         0x8C
#define GPT_CFG_TIMER_EN_               0x20000000
#define GPT_CFG_GPT_LOAD_               0x0000FFFF

#define GPT_CNT                         0x90
#define GPT_CNT_GPT_CNT_                0x0000FFFF

#define WORD_SWAP                       0x98

#define FREE_RUN                        0x9C

#define RX_DROP                         0xA0

#define MAC_CSR_CMD                     0xA4
#define MAC_CSR_CMD_CSR_BUSY_           0x80000000
#define MAC_CSR_CMD_R_NOT_W_            0x40000000
#define MAC_CSR_CMD_CSR_ADDR_           0x000000FF

#define MAC_CSR_DATA                    0xA8

#define AFC_CFG                         0xAC
#define AFC_CFG_AFC_HI_                 0x00FF0000
#define AFC_CFG_AFC_LO_                 0x0000FF00
#define AFC_CFG_BACK_DUR_               0x000000F0
#define AFC_CFG_FCMULT_                 0x00000008
#define AFC_CFG_FCBRD_                  0x00000004
#define AFC_CFG_FCADD_                  0x00000002
#define AFC_CFG_FCANY_                  0x00000001

#define E2P_CMD                         0xB0
#define E2P_CMD_EPC_BUSY_               0x80000000
#define E2P_CMD_EPC_CMD_                0x70000000
#define E2P_CMD_EPC_CMD_READ_           0x00000000
#define E2P_CMD_EPC_CMD_EWDS_           0x10000000
#define E2P_CMD_EPC_CMD_EWEN_           0x20000000
#define E2P_CMD_EPC_CMD_WRITE_          0x30000000
#define E2P_CMD_EPC_CMD_WRAL_           0x40000000
#define E2P_CMD_EPC_CMD_ERASE_          0x50000000
#define E2P_CMD_EPC_CMD_ERAL_           0x60000000
#define E2P_CMD_EPC_CMD_RELOAD_         0x70000000
#define E2P_CMD_EPC_TIMEOUT_            0x00000200
#define E2P_CMD_MAC_ADDR_LOADED_        0x00000100
#define E2P_CMD_EPC_ADDR_               0x000000FF

#define E2P_DATA                        0xB4
#define E2P_DATA_EEPROM_DATA_           0x000000FF
#define LAN_REGISTER_EXTENT             0x00000100

/*
 * MAC Control and Status Register (Indirect Address)
 * Offset (through the MAC_CSR CMD and DATA port)
 */
#define MAC_CR                          0x01
#define MAC_CR_RXALL_                   0x80000000
#define MAC_CR_HBDIS_                   0x10000000
#define MAC_CR_RCVOWN_                  0x00800000
#define MAC_CR_LOOPBK_                  0x00200000
#define MAC_CR_FDPX_                    0x00100000
#define MAC_CR_MCPAS_                   0x00080000
#define MAC_CR_PRMS_                    0x00040000
#define MAC_CR_INVFILT_                 0x00020000
#define MAC_CR_PASSBAD_                 0x00010000
#define MAC_CR_HFILT_                   0x00008000
#define MAC_CR_HPFILT_                  0x00002000
#define MAC_CR_LCOLL_                   0x00001000
#define MAC_CR_BCAST_                   0x00000800
#define MAC_CR_DISRTY_                  0x00000400
#define MAC_CR_PADSTR_                  0x00000100
#define MAC_CR_BOLMT_MASK_              0x000000C0
#define MAC_CR_DFCHK_                   0x00000020
#define MAC_CR_TXEN_                    0x00000008
#define MAC_CR_RXEN_                    0x00000004

#define ADDRH                           0x02

#define ADDRL                           0x03

#define HASHH                           0x04

#define HASHL                           0x05

#define MII_ACC                         0x06
#define MII_ACC_PHY_ADDR_               0x0000F800
#define MII_ACC_MIIRINDA_               0x000007C0
#define MII_ACC_MII_WRITE_              0x00000002
#define MII_ACC_MII_BUSY_               0x00000001

#define MII_DATA                        0x07

#define FLOW                            0x08
#define FLOW_FCPT_                      0xFFFF0000
#define FLOW_FCPASS_                    0x00000004
#define FLOW_FCEN_                      0x00000002
#define FLOW_FCBSY_                     0x00000001

#define VLAN1                           0x09

#define VLAN2                           0x0A

#define WUFF                            0x0B

#define WUCSR                           0x0C
#define WUCSR_GUE_                      0x00000200
#define WUCSR_WUFR_                     0x00000040
#define WUCSR_MPR_                      0x00000020
#define WUCSR_WAKE_EN_                  0x00000004
#define WUCSR_MPEN_                     0x00000002

/*
 * Phy definitions (vendor-specific)
 */
#define LAN9118_PHY_ID                  0x00C0001C

#define MII_INTSTS                      0x1D

#define MII_INTMSK                      0x1E
#define PHY_INTMSK_AN_RCV_              (1 << 1)
#define PHY_INTMSK_PDFAULT_             (1 << 2)
#define PHY_INTMSK_AN_ACK_              (1 << 3)
#define PHY_INTMSK_LNKDOWN_             (1 << 4)
#define PHY_INTMSK_RFAULT_              (1 << 5)
#define PHY_INTMSK_AN_COMP_             (1 << 6)
#define PHY_INTMSK_ENERGYON_            (1 << 7)
#define PHY_INTMSK_DEFAULT_             (PHY_INTMSK_ENERGYON_ | \
                                         PHY_INTMSK_AN_COMP_ | \
                                         PHY_INTMSK_RFAULT_ | \
                                         PHY_INTMSK_LNKDOWN_)

#define ADVERTISE_PAUSE_ALL             (ADVERTISE_PAUSE_CAP | \
                                         ADVERTISE_PAUSE_ASYM)

#define LPA_PAUSE_ALL                   (LPA_PAUSE_CAP | \
                                         LPA_PAUSE_ASYM)

#endif                          /* __SMSC911X_H__ */