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freebsd/sys/pci/if_rlreg.h
Bill Paul 0219a42155 Convert the if_sis and if_rl drivers to use the bus_dma API instead of
calling vtophys() and contigmalloc()/contigfree() directly. Hopefully,
I have shaken out all of the problems with busdma on the alpha now.
(Everything seems to work as expected.)

Also, change the max RX DMA limit to 1024 bytes instead of "unlimited,"
as the latter seems not to work correctly on the alpha that I tested.
(At 100Mbps, all attempts to receive frames yield RX errors.)
2001-08-15 17:38:43 +00:00

492 lines
15 KiB
C

/*
* Copyright (c) 1997, 1998
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* RealTek 8129/8139 register offsets
*/
#define RL_IDR0 0x0000 /* ID register 0 (station addr) */
#define RL_IDR1 0x0001 /* Must use 32-bit accesses (?) */
#define RL_IDR2 0x0002
#define RL_IDR3 0x0003
#define RL_IDR4 0x0004
#define RL_IDR5 0x0005
/* 0006-0007 reserved */
#define RL_MAR0 0x0008 /* Multicast hash table */
#define RL_MAR1 0x0009
#define RL_MAR2 0x000A
#define RL_MAR3 0x000B
#define RL_MAR4 0x000C
#define RL_MAR5 0x000D
#define RL_MAR6 0x000E
#define RL_MAR7 0x000F
#define RL_TXSTAT0 0x0010 /* status of TX descriptor 0 */
#define RL_TXSTAT1 0x0014 /* status of TX descriptor 1 */
#define RL_TXSTAT2 0x0018 /* status of TX descriptor 2 */
#define RL_TXSTAT3 0x001C /* status of TX descriptor 3 */
#define RL_TXADDR0 0x0020 /* address of TX descriptor 0 */
#define RL_TXADDR1 0x0024 /* address of TX descriptor 1 */
#define RL_TXADDR2 0x0028 /* address of TX descriptor 2 */
#define RL_TXADDR3 0x002C /* address of TX descriptor 3 */
#define RL_RXADDR 0x0030 /* RX ring start address */
#define RL_RX_EARLY_BYTES 0x0034 /* RX early byte count */
#define RL_RX_EARLY_STAT 0x0036 /* RX early status */
#define RL_COMMAND 0x0037 /* command register */
#define RL_CURRXADDR 0x0038 /* current address of packet read */
#define RL_CURRXBUF 0x003A /* current RX buffer address */
#define RL_IMR 0x003C /* interrupt mask register */
#define RL_ISR 0x003E /* interrupt status register */
#define RL_TXCFG 0x0040 /* transmit config */
#define RL_RXCFG 0x0044 /* receive config */
#define RL_TIMERCNT 0x0048 /* timer count register */
#define RL_MISSEDPKT 0x004C /* missed packet counter */
#define RL_EECMD 0x0050 /* EEPROM command register */
#define RL_CFG0 0x0051 /* config register #0 */
#define RL_CFG1 0x0052 /* config register #1 */
/* 0053-0057 reserved */
#define RL_MEDIASTAT 0x0058 /* media status register (8139) */
/* 0059-005A reserved */
#define RL_MII 0x005A /* 8129 chip only */
#define RL_HALTCLK 0x005B
#define RL_MULTIINTR 0x005C /* multiple interrupt */
#define RL_PCIREV 0x005E /* PCI revision value */
/* 005F reserved */
#define RL_TXSTAT_ALL 0x0060 /* TX status of all descriptors */
/* Direct PHY access registers only available on 8139 */
#define RL_BMCR 0x0062 /* PHY basic mode control */
#define RL_BMSR 0x0064 /* PHY basic mode status */
#define RL_ANAR 0x0066 /* PHY autoneg advert */
#define RL_LPAR 0x0068 /* PHY link partner ability */
#define RL_ANER 0x006A /* PHY autoneg expansion */
#define RL_DISCCNT 0x006C /* disconnect counter */
#define RL_FALSECAR 0x006E /* false carrier counter */
#define RL_NWAYTST 0x0070 /* NWAY test register */
#define RL_RX_ER 0x0072 /* RX_ER counter */
#define RL_CSCFG 0x0074 /* CS configuration register */
/*
* TX config register bits
*/
#define RL_TXCFG_CLRABRT 0x00000001 /* retransmit aborted pkt */
#define RL_TXCFG_MAXDMA 0x00000700 /* max DMA burst size */
#define RL_TXCFG_CRCAPPEND 0x00010000 /* CRC append (0 = yes) */
#define RL_TXCFG_LOOPBKTST 0x00060000 /* loopback test */
#define RL_TXCFG_IFG 0x03000000 /* interframe gap */
#define RL_TXDMA_16BYTES 0x00000000
#define RL_TXDMA_32BYTES 0x00000100
#define RL_TXDMA_64BYTES 0x00000200
#define RL_TXDMA_128BYTES 0x00000300
#define RL_TXDMA_256BYTES 0x00000400
#define RL_TXDMA_512BYTES 0x00000500
#define RL_TXDMA_1024BYTES 0x00000600
#define RL_TXDMA_2048BYTES 0x00000700
/*
* Transmit descriptor status register bits.
*/
#define RL_TXSTAT_LENMASK 0x00001FFF
#define RL_TXSTAT_OWN 0x00002000
#define RL_TXSTAT_TX_UNDERRUN 0x00004000
#define RL_TXSTAT_TX_OK 0x00008000
#define RL_TXSTAT_EARLY_THRESH 0x003F0000
#define RL_TXSTAT_COLLCNT 0x0F000000
#define RL_TXSTAT_CARR_HBEAT 0x10000000
#define RL_TXSTAT_OUTOFWIN 0x20000000
#define RL_TXSTAT_TXABRT 0x40000000
#define RL_TXSTAT_CARRLOSS 0x80000000
/*
* Interrupt status register bits.
*/
#define RL_ISR_RX_OK 0x0001
#define RL_ISR_RX_ERR 0x0002
#define RL_ISR_TX_OK 0x0004
#define RL_ISR_TX_ERR 0x0008
#define RL_ISR_RX_OVERRUN 0x0010
#define RL_ISR_PKT_UNDERRUN 0x0020
#define RL_ISR_FIFO_OFLOW 0x0040 /* 8139 only */
#define RL_ISR_PCS_TIMEOUT 0x4000 /* 8129 only */
#define RL_ISR_SYSTEM_ERR 0x8000
#define RL_INTRS \
(RL_ISR_TX_OK|RL_ISR_RX_OK|RL_ISR_RX_ERR|RL_ISR_TX_ERR| \
RL_ISR_RX_OVERRUN|RL_ISR_PKT_UNDERRUN|RL_ISR_FIFO_OFLOW| \
RL_ISR_PCS_TIMEOUT|RL_ISR_SYSTEM_ERR)
/*
* Media status register. (8139 only)
*/
#define RL_MEDIASTAT_RXPAUSE 0x01
#define RL_MEDIASTAT_TXPAUSE 0x02
#define RL_MEDIASTAT_LINK 0x04
#define RL_MEDIASTAT_SPEED10 0x08
#define RL_MEDIASTAT_RXFLOWCTL 0x40 /* duplex mode */
#define RL_MEDIASTAT_TXFLOWCTL 0x80 /* duplex mode */
/*
* Receive config register.
*/
#define RL_RXCFG_RX_ALLPHYS 0x00000001 /* accept all nodes */
#define RL_RXCFG_RX_INDIV 0x00000002 /* match filter */
#define RL_RXCFG_RX_MULTI 0x00000004 /* accept all multicast */
#define RL_RXCFG_RX_BROAD 0x00000008 /* accept all broadcast */
#define RL_RXCFG_RX_RUNT 0x00000010
#define RL_RXCFG_RX_ERRPKT 0x00000020
#define RL_RXCFG_WRAP 0x00000080
#define RL_RXCFG_MAXDMA 0x00000700
#define RL_RXCFG_BUFSZ 0x00001800
#define RL_RXCFG_FIFOTHRESH 0x0000E000
#define RL_RXCFG_EARLYTHRESH 0x07000000
#define RL_RXDMA_16BYTES 0x00000000
#define RL_RXDMA_32BYTES 0x00000100
#define RL_RXDMA_64BYTES 0x00000200
#define RL_RXDMA_128BYTES 0x00000300
#define RL_RXDMA_256BYTES 0x00000400
#define RL_RXDMA_512BYTES 0x00000500
#define RL_RXDMA_1024BYTES 0x00000600
#define RL_RXDMA_UNLIMITED 0x00000700
#define RL_RXBUF_8 0x00000000
#define RL_RXBUF_16 0x00000800
#define RL_RXBUF_32 0x00001000
#define RL_RXBUF_64 0x00001800
#define RL_RXFIFO_16BYTES 0x00000000
#define RL_RXFIFO_32BYTES 0x00002000
#define RL_RXFIFO_64BYTES 0x00004000
#define RL_RXFIFO_128BYTES 0x00006000
#define RL_RXFIFO_256BYTES 0x00008000
#define RL_RXFIFO_512BYTES 0x0000A000
#define RL_RXFIFO_1024BYTES 0x0000C000
#define RL_RXFIFO_NOTHRESH 0x0000E000
/*
* Bits in RX status header (included with RX'ed packet
* in ring buffer).
*/
#define RL_RXSTAT_RXOK 0x00000001
#define RL_RXSTAT_ALIGNERR 0x00000002
#define RL_RXSTAT_CRCERR 0x00000004
#define RL_RXSTAT_GIANT 0x00000008
#define RL_RXSTAT_RUNT 0x00000010
#define RL_RXSTAT_BADSYM 0x00000020
#define RL_RXSTAT_BROAD 0x00002000
#define RL_RXSTAT_INDIV 0x00004000
#define RL_RXSTAT_MULTI 0x00008000
#define RL_RXSTAT_LENMASK 0xFFFF0000
#define RL_RXSTAT_UNFINISHED 0xFFF0 /* DMA still in progress */
/*
* Command register.
*/
#define RL_CMD_EMPTY_RXBUF 0x0001
#define RL_CMD_TX_ENB 0x0004
#define RL_CMD_RX_ENB 0x0008
#define RL_CMD_RESET 0x0010
/*
* EEPROM control register
*/
#define RL_EE_DATAOUT 0x01 /* Data out */
#define RL_EE_DATAIN 0x02 /* Data in */
#define RL_EE_CLK 0x04 /* clock */
#define RL_EE_SEL 0x08 /* chip select */
#define RL_EE_MODE (0x40|0x80)
#define RL_EEMODE_OFF 0x00
#define RL_EEMODE_AUTOLOAD 0x40
#define RL_EEMODE_PROGRAM 0x80
#define RL_EEMODE_WRITECFG (0x80|0x40)
/* 9346 EEPROM commands */
#define RL_EECMD_WRITE 0x140
#define RL_EECMD_READ_6BIT 0x180
#define RL_EECMD_READ_8BIT 0x600
#define RL_EECMD_ERASE 0x1c0
#define RL_EE_ID 0x00
#define RL_EE_PCI_VID 0x01
#define RL_EE_PCI_DID 0x02
/* Location of station address inside EEPROM */
#define RL_EE_EADDR 0x07
/*
* MII register (8129 only)
*/
#define RL_MII_CLK 0x01
#define RL_MII_DATAIN 0x02
#define RL_MII_DATAOUT 0x04
#define RL_MII_DIR 0x80 /* 0 == input, 1 == output */
/*
* Config 0 register
*/
#define RL_CFG0_ROM0 0x01
#define RL_CFG0_ROM1 0x02
#define RL_CFG0_ROM2 0x04
#define RL_CFG0_PL0 0x08
#define RL_CFG0_PL1 0x10
#define RL_CFG0_10MBPS 0x20 /* 10 Mbps internal mode */
#define RL_CFG0_PCS 0x40
#define RL_CFG0_SCR 0x80
/*
* Config 1 register
*/
#define RL_CFG1_PWRDWN 0x01
#define RL_CFG1_SLEEP 0x02
#define RL_CFG1_IOMAP 0x04
#define RL_CFG1_MEMMAP 0x08
#define RL_CFG1_RSVD 0x10
#define RL_CFG1_DRVLOAD 0x20
#define RL_CFG1_LED0 0x40
#define RL_CFG1_FULLDUPLEX 0x40 /* 8129 only */
#define RL_CFG1_LED1 0x80
/*
* The RealTek doesn't use a fragment-based descriptor mechanism.
* Instead, there are only four register sets, each or which represents
* one 'descriptor.' Basically, each TX descriptor is just a contiguous
* packet buffer (32-bit aligned!) and we place the buffer addresses in
* the registers so the chip knows where they are.
*
* We can sort of kludge together the same kind of buffer management
* used in previous drivers, but we have to do buffer copies almost all
* the time, so it doesn't really buy us much.
*
* For reception, there's just one large buffer where the chip stores
* all received packets.
*/
#define RL_RX_BUF_SZ RL_RXBUF_64
#define RL_RXBUFLEN (1 << ((RL_RX_BUF_SZ >> 11) + 13))
#define RL_TX_LIST_CNT 4
#define RL_MIN_FRAMELEN 60
#define RL_TXTHRESH(x) ((x) << 11)
#define RL_TX_THRESH_INIT 96
#define RL_RX_FIFOTHRESH RL_RXFIFO_256BYTES
#define RL_RX_MAXDMA RL_RXDMA_1024BYTES /*RL_RXDMA_UNLIMITED*/
#define RL_TX_MAXDMA RL_TXDMA_2048BYTES
#define RL_RXCFG_CONFIG (RL_RX_FIFOTHRESH|RL_RX_MAXDMA|RL_RX_BUF_SZ)
#define RL_TXCFG_CONFIG (RL_TXCFG_IFG|RL_TX_MAXDMA)
#define RL_ETHER_ALIGN 2
struct rl_chain_data {
u_int16_t cur_rx;
caddr_t rl_rx_buf;
caddr_t rl_rx_buf_ptr;
bus_dmamap_t rl_rx_dmamap;
struct mbuf *rl_tx_chain[RL_TX_LIST_CNT];
bus_dmamap_t rl_tx_dmamap[RL_TX_LIST_CNT];
u_int8_t last_tx;
u_int8_t cur_tx;
};
#define RL_INC(x) (x = (x + 1) % RL_TX_LIST_CNT)
#define RL_CUR_TXADDR(x) ((x->rl_cdata.cur_tx * 4) + RL_TXADDR0)
#define RL_CUR_TXSTAT(x) ((x->rl_cdata.cur_tx * 4) + RL_TXSTAT0)
#define RL_CUR_TXMBUF(x) (x->rl_cdata.rl_tx_chain[x->rl_cdata.cur_tx])
#define RL_CUR_DMAMAP(x) (x->rl_cdata.rl_tx_dmamap[x->rl_cdata.cur_tx])
#define RL_LAST_TXADDR(x) ((x->rl_cdata.last_tx * 4) + RL_TXADDR0)
#define RL_LAST_TXSTAT(x) ((x->rl_cdata.last_tx * 4) + RL_TXSTAT0)
#define RL_LAST_TXMBUF(x) (x->rl_cdata.rl_tx_chain[x->rl_cdata.last_tx])
#define RL_LAST_DMAMAP(x) (x->rl_cdata.rl_tx_dmamap[x->rl_cdata.last_tx])
struct rl_type {
u_int16_t rl_vid;
u_int16_t rl_did;
char *rl_name;
};
struct rl_mii_frame {
u_int8_t mii_stdelim;
u_int8_t mii_opcode;
u_int8_t mii_phyaddr;
u_int8_t mii_regaddr;
u_int8_t mii_turnaround;
u_int16_t mii_data;
};
/*
* MII constants
*/
#define RL_MII_STARTDELIM 0x01
#define RL_MII_READOP 0x02
#define RL_MII_WRITEOP 0x01
#define RL_MII_TURNAROUND 0x02
#define RL_8129 1
#define RL_8139 2
struct rl_softc {
struct arpcom arpcom; /* interface info */
bus_space_handle_t rl_bhandle; /* bus space handle */
bus_space_tag_t rl_btag; /* bus space tag */
struct resource *rl_res;
struct resource *rl_irq;
void *rl_intrhand;
device_t rl_miibus;
bus_dma_tag_t rl_parent_tag;
bus_dma_tag_t rl_tag;
u_int8_t rl_unit; /* interface number */
u_int8_t rl_type;
int rl_eecmd_read;
u_int8_t rl_stats_no_timeout;
int rl_txthresh;
struct rl_chain_data rl_cdata;
struct callout_handle rl_stat_ch;
struct mtx rl_mtx;
};
#define RL_LOCK(_sc) mtx_lock(&(_sc)->rl_mtx)
#define RL_UNLOCK(_sc) mtx_unlock(&(_sc)->rl_mtx)
/*
* register space access macros
*/
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->rl_btag, sc->rl_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->rl_btag, sc->rl_bhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->rl_btag, sc->rl_bhandle, reg, val)
#define CSR_READ_4(sc, reg) \
bus_space_read_4(sc->rl_btag, sc->rl_bhandle, reg)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->rl_btag, sc->rl_bhandle, reg)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->rl_btag, sc->rl_bhandle, reg)
#define RL_TIMEOUT 1000
/*
* General constants that are fun to know.
*
* RealTek PCI vendor ID
*/
#define RT_VENDORID 0x10EC
/*
* RealTek chip device IDs.
*/
#define RT_DEVICEID_8129 0x8129
#define RT_DEVICEID_8138 0x8138
#define RT_DEVICEID_8139 0x8139
/*
* Accton PCI vendor ID
*/
#define ACCTON_VENDORID 0x1113
/*
* Accton MPX 5030/5038 device ID.
*/
#define ACCTON_DEVICEID_5030 0x1211
/*
* Delta Electronics Vendor ID.
*/
#define DELTA_VENDORID 0x1500
/*
* Delta device IDs.
*/
#define DELTA_DEVICEID_8139 0x1360
/*
* Addtron vendor ID.
*/
#define ADDTRON_VENDORID 0x4033
/*
* Addtron device IDs.
*/
#define ADDTRON_DEVICEID_8139 0x1360
/*
* D-Link vendor ID.
*/
#define DLINK_VENDORID 0x1186
/*
* D-Link DFE-530TX+ device ID
*/
#define DLINK_DEVICEID_530TXPLUS 0x1300
/*
* PCI low memory base and low I/O base register, and
* other PCI registers.
*/
#define RL_PCI_VENDOR_ID 0x00
#define RL_PCI_DEVICE_ID 0x02
#define RL_PCI_COMMAND 0x04
#define RL_PCI_STATUS 0x06
#define RL_PCI_CLASSCODE 0x09
#define RL_PCI_LATENCY_TIMER 0x0D
#define RL_PCI_HEADER_TYPE 0x0E
#define RL_PCI_LOIO 0x10
#define RL_PCI_LOMEM 0x14
#define RL_PCI_BIOSROM 0x30
#define RL_PCI_INTLINE 0x3C
#define RL_PCI_INTPIN 0x3D
#define RL_PCI_MINGNT 0x3E
#define RL_PCI_MINLAT 0x0F
#define RL_PCI_RESETOPT 0x48
#define RL_PCI_EEPROM_DATA 0x4C
#define RL_PCI_CAPID 0x50 /* 8 bits */
#define RL_PCI_NEXTPTR 0x51 /* 8 bits */
#define RL_PCI_PWRMGMTCAP 0x52 /* 16 bits */
#define RL_PCI_PWRMGMTCTRL 0x54 /* 16 bits */
#define RL_PSTATE_MASK 0x0003
#define RL_PSTATE_D0 0x0000
#define RL_PSTATE_D1 0x0002
#define RL_PSTATE_D2 0x0002
#define RL_PSTATE_D3 0x0003
#define RL_PME_EN 0x0010
#define RL_PME_STATUS 0x8000