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85fce0e478
freebsd/sys/pci/if_xlreg.h
Bill Paul 1b4226d3e4 Add an alternate transmit strategy for 3c90xB adapters based on the transmit 
strategy used in the 3Com Linux driver. The new strategy is to use transmit
descriptor polling -- that is, the NIC polls the descriptors to see when
new packets are available for transmission. The advantage to the new scheme
is that no register accesses are needed in the transmit routine. The old
scheme requires several register accesses to stall the TX engine, update the
TX DMA list pointer register, then unstall the TX engine. Hopefully the new
scheme will provide improved transmit performance with less CPU overhead.

This only affects the 3c90xB or 3c90xC cards, not the 3c90x cards. This
means the original 3c900 and 3c905 cards are unaffected. Newer cards include
the 3c900B series, the 3c905B, 3c980, 3c980B, 3c905C and 3c905C, and the
3cSOHO100-TX OfficeConnect.
1999-09-20 00:24:11 +00:00

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/*
* 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.
*
* $FreeBSD$
*/
#define XL_EE_READ 0x0080 /* read, 5 bit address */
#define XL_EE_WRITE 0x0040 /* write, 5 bit address */
#define XL_EE_ERASE 0x00c0 /* erase, 5 bit address */
#define XL_EE_EWEN 0x0030 /* erase, no data needed */
#define XL_EE_BUSY 0x8000
#define XL_EE_EADDR0 0x00 /* station address, first word */
#define XL_EE_EADDR1 0x01 /* station address, next word, */
#define XL_EE_EADDR2 0x02 /* station address, last word */
#define XL_EE_PRODID 0x03 /* product ID code */
#define XL_EE_MDATA_DATE 0x04 /* manufacturing data, date */
#define XL_EE_MDATA_DIV 0x05 /* manufacturing data, division */
#define XL_EE_MDATA_PCODE 0x06 /* manufacturing data, product code */
#define XL_EE_MFG_ID 0x07
#define XL_EE_PCI_PARM 0x08
#define XL_EE_ROM_ONFO 0x09
#define XL_EE_OEM_ADR0 0x0A
#define XL_EE_OEM_ADR1 0x0B
#define XL_EE_OEM_ADR2 0x0C
#define XL_EE_SOFTINFO1 0x0D
#define XL_EE_COMPAT 0x0E
#define XL_EE_SOFTINFO2 0x0F
#define XL_EE_CAPS 0x10 /* capabilities word */
#define XL_EE_RSVD0 0x11
#define XL_EE_ICFG_0 0x12
#define XL_EE_ICFG_1 0x13
#define XL_EE_RSVD1 0x14
#define XL_EE_SOFTINFO3 0x15
#define XL_EE_RSVD_2 0x16
/*
* Bits in the capabilities word
*/
#define XL_CAPS_PNP 0x0001
#define XL_CAPS_FULL_DUPLEX 0x0002
#define XL_CAPS_LARGE_PKTS 0x0004
#define XL_CAPS_SLAVE_DMA 0x0008
#define XL_CAPS_SECOND_DMA 0x0010
#define XL_CAPS_FULL_BM 0x0020
#define XL_CAPS_FRAG_BM 0x0040
#define XL_CAPS_CRC_PASSTHRU 0x0080
#define XL_CAPS_TXDONE 0x0100
#define XL_CAPS_NO_TXLENGTH 0x0200
#define XL_CAPS_RX_REPEAT 0x0400
#define XL_CAPS_SNOOPING 0x0800
#define XL_CAPS_100MBPS 0x1000
#define XL_CAPS_PWRMGMT 0x2000
#define XL_PACKET_SIZE 1536
/*
* Register layouts.
*/
#define XL_COMMAND 0x0E
#define XL_STATUS 0x0E
#define XL_TX_STATUS 0x1B
#define XL_TX_FREE 0x1C
#define XL_DMACTL 0x20
#define XL_DOWNLIST_PTR 0x24
#define XL_DOWN_POLL 0x2D /* 3c90xB only */
#define XL_TX_FREETHRESH 0x2F
#define XL_UPLIST_PTR 0x38
#define XL_UPLIST_STATUS 0x30
#define XL_UP_POLL 0x3D /* 3c90xB only */
#define XL_PKTSTAT_UP_STALLED 0x00002000
#define XL_PKTSTAT_UP_ERROR 0x00004000
#define XL_PKTSTAT_UP_CMPLT 0x00008000
#define XL_DMACTL_DN_CMPLT_REQ 0x00000002
#define XL_DMACTL_DOWN_STALLED 0x00000004
#define XL_DMACTL_UP_CMPLT 0x00000008
#define XL_DMACTL_DOWN_CMPLT 0x00000010
#define XL_DMACTL_UP_RX_EARLY 0x00000020
#define XL_DMACTL_ARM_COUNTDOWN 0x00000040
#define XL_DMACTL_DOWN_INPROG 0x00000080
#define XL_DMACTL_COUNTER_SPEED 0x00000100
#define XL_DMACTL_DOWNDOWN_MODE 0x00000200
#define XL_DMACTL_TARGET_ABORT 0x40000000
#define XL_DMACTL_MASTER_ABORT 0x80000000
/*
* Command codes. Some command codes require that we wait for
* the CMD_BUSY flag to clear. Those codes are marked as 'mustwait.'
*/
#define XL_CMD_RESET 0x0000 /* mustwait */
#define XL_CMD_WINSEL 0x0800
#define XL_CMD_COAX_START 0x1000
#define XL_CMD_RX_DISABLE 0x1800
#define XL_CMD_RX_ENABLE 0x2000
#define XL_CMD_RX_RESET 0x2800 /* mustwait */
#define XL_CMD_UP_STALL 0x3000 /* mustwait */
#define XL_CMD_UP_UNSTALL 0x3001
#define XL_CMD_DOWN_STALL 0x3002 /* mustwait */
#define XL_CMD_DOWN_UNSTALL 0x3003
#define XL_CMD_RX_DISCARD 0x4000
#define XL_CMD_TX_ENABLE 0x4800
#define XL_CMD_TX_DISABLE 0x5000
#define XL_CMD_TX_RESET 0x5800 /* mustwait */
#define XL_CMD_INTR_FAKE 0x6000
#define XL_CMD_INTR_ACK 0x6800
#define XL_CMD_INTR_ENB 0x7000
#define XL_CMD_STAT_ENB 0x7800
#define XL_CMD_RX_SET_FILT 0x8000
#define XL_CMD_RX_SET_THRESH 0x8800
#define XL_CMD_TX_SET_THRESH 0x9000
#define XL_CMD_TX_SET_START 0x9800
#define XL_CMD_DMA_UP 0xA000
#define XL_CMD_DMA_STOP 0xA001
#define XL_CMD_STATS_ENABLE 0xA800
#define XL_CMD_STATS_DISABLE 0xB000
#define XL_CMD_COAX_STOP 0xB800
#define XL_CMD_SET_TX_RECLAIM 0xC000 /* 3c905B only */
#define XL_CMD_RX_SET_HASH 0xC800 /* 3c905B only */
#define XL_HASH_SET 0x0400
#define XL_HASHFILT_SIZE 256
/*
* status codes
* Note that bits 15 to 13 indicate the currently visible register window
* which may be anything from 0 to 7.
*/
#define XL_STAT_INTLATCH 0x0001 /* 0 */
#define XL_STAT_ADFAIL 0x0002 /* 1 */
#define XL_STAT_TX_COMPLETE 0x0004 /* 2 */
#define XL_STAT_TX_AVAIL 0x0008 /* 3 first generation */
#define XL_STAT_RX_COMPLETE 0x0010 /* 4 */
#define XL_STAT_RX_EARLY 0x0020 /* 5 */
#define XL_STAT_INTREQ 0x0040 /* 6 */
#define XL_STAT_STATSOFLOW 0x0080 /* 7 */
#define XL_STAT_DMADONE 0x0100 /* 8 first generation */
#define XL_STAT_LINKSTAT 0x0100 /* 8 3c509B */
#define XL_STAT_DOWN_COMPLETE 0x0200 /* 9 */
#define XL_STAT_UP_COMPLETE 0x0400 /* 10 */
#define XL_STAT_DMABUSY 0x0800 /* 11 first generation */
#define XL_STAT_CMDBUSY 0x1000 /* 12 */
/*
* Interrupts we normally want enabled.
*/
#define XL_INTRS \
(XL_STAT_UP_COMPLETE|XL_STAT_STATSOFLOW|XL_STAT_ADFAIL| \
XL_STAT_DOWN_COMPLETE|XL_STAT_TX_COMPLETE|XL_STAT_INTLATCH)
/*
* Window 0 registers
*/
#define XL_W0_EE_DATA 0x0C
#define XL_W0_EE_CMD 0x0A
#define XL_W0_RSRC_CFG 0x08
#define XL_W0_ADDR_CFG 0x06
#define XL_W0_CFG_CTRL 0x04
#define XL_W0_PROD_ID 0x02
#define XL_W0_MFG_ID 0x00
/*
* Window 1
*/
#define XL_W1_TX_FIFO 0x10
#define XL_W1_FREE_TX 0x0C
#define XL_W1_TX_STATUS 0x0B
#define XL_W1_TX_TIMER 0x0A
#define XL_W1_RX_STATUS 0x08
#define XL_W1_RX_FIFO 0x00
/*
* RX status codes
*/
#define XL_RXSTATUS_OVERRUN 0x01
#define XL_RXSTATUS_RUNT 0x02
#define XL_RXSTATUS_ALIGN 0x04
#define XL_RXSTATUS_CRC 0x08
#define XL_RXSTATUS_OVERSIZE 0x10
#define XL_RXSTATUS_DRIBBLE 0x20
/*
* TX status codes
*/
#define XL_TXSTATUS_RECLAIM 0x02 /* 3c905B only */
#define XL_TXSTATUS_OVERFLOW 0x04
#define XL_TXSTATUS_MAXCOLS 0x08
#define XL_TXSTATUS_UNDERRUN 0x10
#define XL_TXSTATUS_JABBER 0x20
#define XL_TXSTATUS_INTREQ 0x40
#define XL_TXSTATUS_COMPLETE 0x80
/*
* Window 2
*/
#define XL_W2_RESET_OPTIONS 0x0C /* 3c905B only */
#define XL_W2_STATION_MASK_HI 0x0A
#define XL_W2_STATION_MASK_MID 0x08
#define XL_W2_STATION_MASK_LO 0x06
#define XL_W2_STATION_ADDR_HI 0x04
#define XL_W2_STATION_ADDR_MID 0x02
#define XL_W2_STATION_ADDR_LO 0x00
#define XL_RESETOPT_FEATUREMASK 0x0001|0x0002|0x004
#define XL_RESETOPT_D3RESETDIS 0x0008
#define XL_RESETOPT_DISADVFD 0x0010
#define XL_RESETOPT_DISADV100 0x0020
#define XL_RESETOPT_DISAUTONEG 0x0040
#define XL_RESETOPT_DEBUGMODE 0x0080
#define XL_RESETOPT_FASTAUTO 0x0100
#define XL_RESETOPT_FASTEE 0x0200
#define XL_RESETOPT_FORCEDCONF 0x0400
#define XL_RESETOPT_TESTPDTPDR 0x0800
#define XL_RESETOPT_TEST100TX 0x1000
#define XL_RESETOPT_TEST100RX 0x2000
/*
* Window 3 (fifo management)
*/
#define XL_W3_INTERNAL_CFG 0x00
#define XL_W3_RESET_OPT 0x08
#define XL_W3_FREE_TX 0x0C
#define XL_W3_FREE_RX 0x0A
#define XL_W3_MAC_CTRL 0x06
#define XL_ICFG_CONNECTOR_MASK 0x00F00000
#define XL_ICFG_CONNECTOR_BITS 20
#define XL_ICFG_RAMSIZE_MASK 0x00000007
#define XL_ICFG_RAMWIDTH 0x00000008
#define XL_ICFG_ROMSIZE_MASK (0x00000040|0x00000080)
#define XL_ICFG_DISABLE_BASSD 0x00000100
#define XL_ICFG_RAMLOC 0x00000200
#define XL_ICFG_RAMPART (0x00010000|0x00020000)
#define XL_ICFG_XCVRSEL (0x00100000|0x00200000|0x00400000)
#define XL_ICFG_AUTOSEL 0x01000000
#define XL_XCVR_10BT 0x00
#define XL_XCVR_AUI 0x01
#define XL_XCVR_RSVD_0 0x02
#define XL_XCVR_COAX 0x03
#define XL_XCVR_100BTX 0x04
#define XL_XCVR_100BFX 0x05
#define XL_XCVR_MII 0x06
#define XL_XCVR_RSVD_1 0x07
#define XL_XCVR_AUTO 0x08 /* 3c905B only */
#define XL_MACCTRL_DEFER_EXT_END 0x0001
#define XL_MACCTRL_DEFER_0 0x0002
#define XL_MACCTRL_DEFER_1 0x0004
#define XL_MACCTRL_DEFER_2 0x0008
#define XL_MACCTRL_DEFER_3 0x0010
#define XL_MACCTRL_DUPLEX 0x0020
#define XL_MACCTRL_ALLOW_LARGE_PACK 0x0040
#define XL_MACCTRL_EXTEND_AFTER_COL 0x0080 (3c905B only)
#define XL_MACCTRL_FLOW_CONTROL_ENB 0x0100 (3c905B only)
#define XL_MACCTRL_VLT_END 0x0200 (3c905B only)
/*
* The 'reset options' register contains power-on reset values
* loaded from the EEPROM. This includes the supported media
* types on the card. It is also known as the media options register.
*/
#define XL_W3_MEDIA_OPT 0x08
#define XL_MEDIAOPT_BT4 0x0001 /* MII */
#define XL_MEDIAOPT_BTX 0x0002 /* on-chip */
#define XL_MEDIAOPT_BFX 0x0004 /* on-chip */
#define XL_MEDIAOPT_BT 0x0008 /* on-chip */
#define XL_MEDIAOPT_BNC 0x0010 /* on-chip */
#define XL_MEDIAOPT_AUI 0x0020 /* on-chip */
#define XL_MEDIAOPT_MII 0x0040 /* MII */
#define XL_MEDIAOPT_VCO 0x0100 /* 1st gen chip only */
#define XL_MEDIAOPT_10FL 0x0100 /* 3x905B only, on-chip */
#define XL_MEDIAOPT_MASK 0x01FF
/*
* Window 4 (diagnostics)
*/
#define XL_W4_UPPERBYTESOK 0x0D
#define XL_W4_BADSSD 0x0C
#define XL_W4_MEDIA_STATUS 0x0A
#define XL_W4_PHY_MGMT 0x08
#define XL_W4_NET_DIAG 0x06
#define XL_W4_FIFO_DIAG 0x04
#define XL_W4_VCO_DIAG 0x02
#define XL_W4_CTRLR_STAT 0x08
#define XL_W4_TX_DIAG 0x00
#define XL_MII_CLK 0x01
#define XL_MII_DATA 0x02
#define XL_MII_DIR 0x04
#define XL_MEDIA_SQE 0x0008
#define XL_MEDIA_10TP 0x00C0
#define XL_MEDIA_LNK 0x0080
#define XL_MEDIA_LNKBEAT 0x0800
#define XL_MEDIASTAT_CRCSTRIP 0x0004
#define XL_MEDIASTAT_SQEENB 0x0008
#define XL_MEDIASTAT_COLDET 0x0010
#define XL_MEDIASTAT_CARRIER 0x0020
#define XL_MEDIASTAT_JABGUARD 0x0040
#define XL_MEDIASTAT_LINKBEAT 0x0080
#define XL_MEDIASTAT_JABDETECT 0x0200
#define XL_MEDIASTAT_POLREVERS 0x0400
#define XL_MEDIASTAT_LINKDETECT 0x0800
#define XL_MEDIASTAT_TXINPROG 0x1000
#define XL_MEDIASTAT_DCENB 0x4000
#define XL_MEDIASTAT_AUIDIS 0x8000
#define XL_NETDIAG_TEST_LOWVOLT 0x0001
#define XL_NETDIAG_ASIC_REVMASK (0x0002|0x0004|0x0008|0x0010|0x0020)
#define XL_NETDIAG_UPPER_BYTES_ENABLE 0x0040
#define XL_NETDIAG_STATS_ENABLED 0x0080
#define XL_NETDIAG_TX_FATALERR 0x0100
#define XL_NETDIAG_TRANSMITTING 0x0200
#define XL_NETDIAG_RX_ENABLED 0x0400
#define XL_NETDIAG_TX_ENABLED 0x0800
#define XL_NETDIAG_FIFO_LOOPBACK 0x1000
#define XL_NETDIAG_MAC_LOOPBACK 0x2000
#define XL_NETDIAG_ENDEC_LOOPBACK 0x4000
#define XL_NETDIAG_EXTERNAL_LOOP 0x8000
/*
* Window 5
*/
#define XL_W5_STAT_ENB 0x0C
#define XL_W5_INTR_ENB 0x0A
#define XL_W5_RECLAIM_THRESH 0x09 /* 3c905B only */
#define XL_W5_RX_FILTER 0x08
#define XL_W5_RX_EARLYTHRESH 0x06
#define XL_W5_TX_AVAILTHRESH 0x02
#define XL_W5_TX_STARTTHRESH 0x00
/*
* RX filter bits
*/
#define XL_RXFILTER_INDIVIDUAL 0x01
#define XL_RXFILTER_ALLMULTI 0x02
#define XL_RXFILTER_BROADCAST 0x04
#define XL_RXFILTER_ALLFRAMES 0x08
#define XL_RXFILTER_MULTIHASH 0x10 /* 3c905B only */
/*
* Window 6 (stats)
*/
#define XL_W6_TX_BYTES_OK 0x0C
#define XL_W6_RX_BYTES_OK 0x0A
#define XL_W6_UPPER_FRAMES_OK 0x09
#define XL_W6_DEFERRED 0x08
#define XL_W6_RX_OK 0x07
#define XL_W6_TX_OK 0x06
#define XL_W6_RX_OVERRUN 0x05
#define XL_W6_COL_LATE 0x04
#define XL_W6_COL_SINGLE 0x03
#define XL_W6_COL_MULTIPLE 0x02
#define XL_W6_SQE_ERRORS 0x01
#define XL_W6_CARRIER_LOST 0x00
/*
* Window 7 (bus master control)
*/
#define XL_W7_BM_ADDR 0x00
#define XL_W7_BM_LEN 0x06
#define XL_W7_BM_STATUS 0x0B
#define XL_W7_BM_TIMEr 0x0A
/*
* bus master control registers
*/
#define XL_BM_PKTSTAT 0x20
#define XL_BM_DOWNLISTPTR 0x24
#define XL_BM_FRAGADDR 0x28
#define XL_BM_FRAGLEN 0x2C
#define XL_BM_TXFREETHRESH 0x2F
#define XL_BM_UPPKTSTAT 0x30
#define XL_BM_UPLISTPTR 0x38
#define XL_LAST_FRAG 0x80000000
/*
* Boomerang/Cyclone TX/RX list structure.
* For the TX lists, bits 0 to 12 of the status word indicate
* length.
* This looks suspiciously like the ThunderLAN, doesn't it.
*/
struct xl_frag {
u_int32_t xl_addr; /* 63 addr/len pairs */
u_int32_t xl_len;
};
struct xl_list {
u_int32_t xl_next; /* final entry has 0 nextptr */
u_int32_t xl_status;
struct xl_frag xl_frag[63];
};
struct xl_list_onefrag {
u_int32_t xl_next; /* final entry has 0 nextptr */
u_int32_t xl_status;
struct xl_frag xl_frag;
};
#define XL_MAXFRAGS 63
#define XL_RX_LIST_CNT 128
#define XL_TX_LIST_CNT 256
#define XL_MIN_FRAMELEN 60
#define ETHER_ALIGN 2
#define XL_INC(x, y) (x) = (x + 1) % y
struct xl_list_data {
struct xl_list_onefrag xl_rx_list[XL_RX_LIST_CNT];
struct xl_list xl_tx_list[XL_TX_LIST_CNT];
unsigned char xl_pad[XL_MIN_FRAMELEN];
};
struct xl_chain {
struct xl_list *xl_ptr;
struct mbuf *xl_mbuf;
struct xl_chain *xl_next;
struct xl_chain *xl_prev;
u_int32_t xl_phys;
};
struct xl_chain_onefrag {
struct xl_list_onefrag *xl_ptr;
struct mbuf *xl_mbuf;
struct xl_chain_onefrag *xl_next;
};
struct xl_chain_data {
struct xl_chain_onefrag xl_rx_chain[XL_RX_LIST_CNT];
struct xl_chain xl_tx_chain[XL_TX_LIST_CNT];
struct xl_chain_onefrag *xl_rx_head;
/* 3c90x "boomerang" queuing stuff */
struct xl_chain *xl_tx_head;
struct xl_chain *xl_tx_tail;
struct xl_chain *xl_tx_free;
/* 3c90xB "cyclone/hurricane/tornado" stuff */
int xl_tx_prod;
int xl_tx_cons;
int xl_tx_cnt;
};
#define XL_RXSTAT_LENMASK 0x00001FFF
#define XL_RXSTAT_UP_ERROR 0x00004000
#define XL_RXSTAT_UP_CMPLT 0x00008000
#define XL_RXSTAT_UP_OVERRUN 0x00010000
#define XL_RXSTAT_RUNT 0x00020000
#define XL_RXSTAT_ALIGN 0x00040000
#define XL_RXSTAT_CRC 0x00080000
#define XL_RXSTAT_OVERSIZE 0x00100000
#define XL_RXSTAT_DRIBBLE 0x00800000
#define XL_RXSTAT_UP_OFLOW 0x01000000
#define XL_RXSTAT_IPCKERR 0x02000000 /* 3c905B only */
#define XL_RXSTAT_TCPCKERR 0x04000000 /* 3c905B only */
#define XL_RXSTAT_UDPCKERR 0x08000000 /* 3c905B only */
#define XL_RXSTAT_BUFEN 0x10000000 /* 3c905B only */
#define XL_RXSTAT_IPCKOK 0x20000000 /* 3c905B only */
#define XL_RXSTAT_TCPCOK 0x40000000 /* 3c905B only */
#define XL_RXSTAT_UDPCKOK 0x80000000 /* 3c905B only */
#define XL_TXSTAT_LENMASK 0x00001FFF
#define XL_TXSTAT_CRCDIS 0x00002000
#define XL_TXSTAT_TX_INTR 0x00008000
#define XL_TXSTAT_DL_COMPLETE 0x00010000
#define XL_TXSTAT_IPCKSUM 0x02000000 /* 3c905B only */
#define XL_TXSTAT_TCPCKSUM 0x04000000 /* 3c905B only */
#define XL_TXSTAT_UDPCKSUM 0x08000000 /* 3c905B only */
#define XL_TXSTAT_RND_DEFEAT 0x10000000 /* 3c905B only */
#define XL_TXSTAT_EMPTY 0x20000000 /* 3c905B only */
#define XL_TXSTAT_DL_INTR 0x80000000
#define XL_CAPABILITY_BM 0x20
struct xl_type {
u_int16_t xl_vid;
u_int16_t xl_did;
char *xl_name;
};
struct xl_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 XL_MII_STARTDELIM 0x01
#define XL_MII_READOP 0x02
#define XL_MII_WRITEOP 0x01
#define XL_MII_TURNAROUND 0x02
/*
* The 3C905B adapters implement a few features that we want to
* take advantage of, namely the multicast hash filter. With older
* chips, you only have the option of turning on reception of all
* multicast frames, which is kind of lame.
*
* We also use this to decide on a transmit strategy. For the 3c90xB
* cards, we can use polled descriptor mode, which reduces CPU overhead.
*/
#define XL_TYPE_905B 1
#define XL_TYPE_90X 2
struct xl_softc {
struct arpcom arpcom; /* interface info */
struct ifmedia ifmedia; /* media info */
bus_space_handle_t xl_bhandle;
bus_space_tag_t xl_btag;
void *xl_intrhand;
struct resource *xl_irq;
struct resource *xl_res;
device_t xl_miibus;
struct xl_type *xl_info; /* 3Com adapter info */
u_int8_t xl_unit; /* interface number */
u_int8_t xl_type;
u_int32_t xl_xcvr;
u_int16_t xl_media;
u_int16_t xl_caps;
u_int8_t xl_stats_no_timeout;
u_int16_t xl_tx_thresh;
struct xl_list_data *xl_ldata;
struct xl_chain_data xl_cdata;
struct callout_handle xl_stat_ch;
};
#define xl_rx_goodframes(x) \
((x.xl_upper_frames_ok & 0x03) << 8) | x.xl_rx_frames_ok
#define xl_tx_goodframes(x) \
((x.xl_upper_frames_ok & 0x30) << 4) | x.xl_tx_frames_ok
struct xl_stats {
u_int8_t xl_carrier_lost;
u_int8_t xl_sqe_errs;
u_int8_t xl_tx_multi_collision;
u_int8_t xl_tx_single_collision;
u_int8_t xl_tx_late_collision;
u_int8_t xl_rx_overrun;
u_int8_t xl_tx_frames_ok;
u_int8_t xl_rx_frames_ok;
u_int8_t xl_tx_deferred;
u_int8_t xl_upper_frames_ok;
u_int16_t xl_rx_bytes_ok;
u_int16_t xl_tx_bytes_ok;
u_int16_t status;
};
/*
* register space access macros
*/
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->xl_btag, sc->xl_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->xl_btag, sc->xl_bhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->xl_btag, sc->xl_bhandle, reg, val)
#define CSR_READ_4(sc, reg) \
bus_space_read_4(sc->xl_btag, sc->xl_bhandle, reg)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->xl_btag, sc->xl_bhandle, reg)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->xl_btag, sc->xl_bhandle, reg)
#define XL_SEL_WIN(x) \
CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_WINSEL | x)
#define XL_TIMEOUT 1000
/*
* General constants that are fun to know.
*
* 3Com PCI vendor ID
*/
#define TC_VENDORID 0x10B7
/*
* 3Com chip device IDs.
*/
#define TC_DEVICEID_BOOMERANG_10BT 0x9000
#define TC_DEVICEID_BOOMERANG_10BT_COMBO 0x9001
#define TC_DEVICEID_BOOMERANG_10_100BT 0x9050
#define TC_DEVICEID_BOOMERANG_100BT4 0x9051
#define TC_DEVICEID_KRAKATOA_10BT 0x9004
#define TC_DEVICEID_KRAKATOA_10BT_COMBO 0x9005
#define TC_DEVICEID_KRAKATOA_10BT_TPC 0x9006
#define TC_DEVICEID_CYCLONE_10FL 0x900A
#define TC_DEVICEID_HURRICANE_10_100BT 0x9055
#define TC_DEVICEID_CYCLONE_10_100BT4 0x9056
#define TC_DEVICEID_CYCLONE_10_100_COMBO 0x9058
#define TC_DEVICEID_CYCLONE_10_100FX 0x905A
#define TC_DEVICEID_TORNADO_10_100BT 0x9200
#define TC_DEVICEID_HURRICANE_10_100BT_SERV 0x9800
#define TC_DEVICEID_TORNADO_10_100BT_SERV 0x9805
#define TC_DEVICEID_HURRICANE_SOHO100TX 0x7646
/*
* PCI low memory base and low I/O base register, and
* other PCI registers. Note: some are only available on
* the 3c905B, in particular those that related to power management.
*/
#define XL_PCI_VENDOR_ID 0x00
#define XL_PCI_DEVICE_ID 0x02
#define XL_PCI_COMMAND 0x04
#define XL_PCI_STATUS 0x06
#define XL_PCI_CLASSCODE 0x09
#define XL_PCI_LATENCY_TIMER 0x0D
#define XL_PCI_HEADER_TYPE 0x0E
#define XL_PCI_LOIO 0x10
#define XL_PCI_LOMEM 0x14
#define XL_PCI_BIOSROM 0x30
#define XL_PCI_INTLINE 0x3C
#define XL_PCI_INTPIN 0x3D
#define XL_PCI_MINGNT 0x3E
#define XL_PCI_MINLAT 0x0F
#define XL_PCI_RESETOPT 0x48
#define XL_PCI_EEPROM_DATA 0x4C
/* 3c905B-only registers */
#define XL_PCI_CAPID 0xDC /* 8 bits */
#define XL_PCI_NEXTPTR 0xDD /* 8 bits */
#define XL_PCI_PWRMGMTCAP 0xDE /* 16 bits */
#define XL_PCI_PWRMGMTCTRL 0xE0 /* 16 bits */
#define XL_PSTATE_MASK 0x0003
#define XL_PSTATE_D0 0x0000
#define XL_PSTATE_D1 0x0002
#define XL_PSTATE_D2 0x0002
#define XL_PSTATE_D3 0x0003
#define XL_PME_EN 0x0010
#define XL_PME_STATUS 0x8000
#ifdef __alpha__
#undef vtophys
#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)va)
#endif
#ifndef IFM_10_FL
#define IFM_10_FL 13 /* 10baseFL - Fiber */
#endif
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