2 * Copyright (c) 1995, David Greenman
3 * Copyright (c) 2001 Jonathan Lemon <jlemon@freebsd.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice unmodified, this list of conditions, and the following
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #define FXP_VENDORID_INTEL 0x8086
33 #define FXP_PCI_MMBA 0x10
34 #define FXP_PCI_IOBA 0x14
37 * Control/status registers.
39 #define FXP_CSR_SCB_RUSCUS 0 /* scb_rus/scb_cus (1 byte) */
40 #define FXP_CSR_SCB_STATACK 1 /* scb_statack (1 byte) */
41 #define FXP_CSR_SCB_COMMAND 2 /* scb_command (1 byte) */
42 #define FXP_CSR_SCB_INTRCNTL 3 /* scb_intrcntl (1 byte) */
43 #define FXP_CSR_SCB_GENERAL 4 /* scb_general (4 bytes) */
44 #define FXP_CSR_PORT 8 /* port (4 bytes) */
45 #define FXP_CSR_FLASHCONTROL 12 /* flash control (2 bytes) */
46 #define FXP_CSR_EEPROMCONTROL 14 /* eeprom control (2 bytes) */
47 #define FXP_CSR_MDICONTROL 16 /* mdi control (4 bytes) */
48 #define FXP_CSR_FLOWCONTROL 0x19 /* flow control (2 bytes) */
49 #define FXP_CSR_PMDR 0x1B /* power management driver (1 byte) */
50 #define FXP_CSR_GENCONTROL 0x1C /* general control (1 byte) */
53 * FOR REFERENCE ONLY, the old definition of FXP_CSR_SCB_RUSCUS:
55 * volatile uint8_t :2,
60 #define FXP_PORT_SOFTWARE_RESET 0
61 #define FXP_PORT_SELFTEST 1
62 #define FXP_PORT_SELECTIVE_RESET 2
63 #define FXP_PORT_DUMP 3
65 #define FXP_SCB_RUS_IDLE 0
66 #define FXP_SCB_RUS_SUSPENDED 1
67 #define FXP_SCB_RUS_NORESOURCES 2
68 #define FXP_SCB_RUS_READY 4
69 #define FXP_SCB_RUS_SUSP_NORBDS 9
70 #define FXP_SCB_RUS_NORES_NORBDS 10
71 #define FXP_SCB_RUS_READY_NORBDS 12
73 #define FXP_SCB_CUS_IDLE 0
74 #define FXP_SCB_CUS_SUSPENDED 1
75 #define FXP_SCB_CUS_ACTIVE 2
77 #define FXP_SCB_INTR_DISABLE 0x01 /* Disable all interrupts */
78 #define FXP_SCB_INTR_SWI 0x02 /* Generate SWI */
79 #define FXP_SCB_INTMASK_FCP 0x04
80 #define FXP_SCB_INTMASK_ER 0x08
81 #define FXP_SCB_INTMASK_RNR 0x10
82 #define FXP_SCB_INTMASK_CNA 0x20
83 #define FXP_SCB_INTMASK_FR 0x40
84 #define FXP_SCB_INTMASK_CXTNO 0x80
86 #define FXP_SCB_STATACK_FCP 0x01 /* Flow Control Pause */
87 #define FXP_SCB_STATACK_ER 0x02 /* Early Receive */
88 #define FXP_SCB_STATACK_SWI 0x04
89 #define FXP_SCB_STATACK_MDI 0x08
90 #define FXP_SCB_STATACK_RNR 0x10
91 #define FXP_SCB_STATACK_CNA 0x20
92 #define FXP_SCB_STATACK_FR 0x40
93 #define FXP_SCB_STATACK_CXTNO 0x80
95 #define FXP_SCB_COMMAND_CU_NOP 0x00
96 #define FXP_SCB_COMMAND_CU_START 0x10
97 #define FXP_SCB_COMMAND_CU_RESUME 0x20
98 #define FXP_SCB_COMMAND_CU_DUMP_ADR 0x40
99 #define FXP_SCB_COMMAND_CU_DUMP 0x50
100 #define FXP_SCB_COMMAND_CU_BASE 0x60
101 #define FXP_SCB_COMMAND_CU_DUMPRESET 0x70
103 #define FXP_SCB_COMMAND_RU_NOP 0
104 #define FXP_SCB_COMMAND_RU_START 1
105 #define FXP_SCB_COMMAND_RU_RESUME 2
106 #define FXP_SCB_COMMAND_RU_ABORT 4
107 #define FXP_SCB_COMMAND_RU_LOADHDS 5
108 #define FXP_SCB_COMMAND_RU_BASE 6
109 #define FXP_SCB_COMMAND_RU_RBDRESUME 7
112 * Command block definitions
126 /* I hate bit-fields :-( */
127 #if BYTE_ORDER == LITTLE_ENDIAN
128 #define __FXP_BITFIELD2(a, b) a, b
129 #define __FXP_BITFIELD3(a, b, c) a, b, c
130 #define __FXP_BITFIELD4(a, b, c, d) a, b, c, d
131 #define __FXP_BITFIELD5(a, b, c, d, e) a, b, c, d, e
132 #define __FXP_BITFIELD6(a, b, c, d, e, f) a, b, c, d, e, f
133 #define __FXP_BITFIELD7(a, b, c, d, e, f, g) a, b, c, d, e, f, g
134 #define __FXP_BITFIELD8(a, b, c, d, e, f, g, h) a, b, c, d, e, f, g, h
136 #define __FXP_BITFIELD2(a, b) b, a
137 #define __FXP_BITFIELD3(a, b, c) c, b, a
138 #define __FXP_BITFIELD4(a, b, c, d) d, c, b, a
139 #define __FXP_BITFIELD5(a, b, c, d, e) e, d, c, b, a
140 #define __FXP_BITFIELD6(a, b, c, d, e, f) f, e, d, c, b, a
141 #define __FXP_BITFIELD7(a, b, c, d, e, f, g) g, f, e, d, c, b, a
142 #define __FXP_BITFIELD8(a, b, c, d, e, f, g, h) h, g, f, e, d, c, b, a
145 struct fxp_cb_config {
150 /* Bytes 0 - 21 -- common to all i8255x */
151 u_int __FXP_BITFIELD2(byte_count:6, :2);
152 u_int __FXP_BITFIELD3(rx_fifo_limit:4, tx_fifo_limit:3, :1);
153 uint8_t adaptive_ifs;
154 u_int __FXP_BITFIELD5(mwi_enable:1, /* 8,9 */
155 type_enable:1, /* 8,9 */
156 read_align_en:1, /* 8,9 */
157 end_wr_on_cl:1, /* 8,9 */
159 u_int __FXP_BITFIELD2(rx_dma_bytecount:7, :1);
160 u_int __FXP_BITFIELD2(tx_dma_bytecount:7, dma_mbce:1);
161 u_int __FXP_BITFIELD8(late_scb:1, /* 7 */
162 direct_dma_dis:1, /* 8,9 */
163 tno_int_or_tco_en:1, /* 7,9 */
165 ext_txcb_dis:1, /* 8,9 */
166 ext_stats_dis:1, /* 8,9 */
169 u_int __FXP_BITFIELD6(disc_short_rx:1,
173 two_frames:1, /* 8,9 */
174 dyn_tbd:1); /* 8,9 */
175 u_int __FXP_BITFIELD3(mediatype:1, /* 7 */
177 csma_dis:1); /* 8,9 */
178 u_int __FXP_BITFIELD6(tcp_udp_cksum:1, /* 9 */
180 vlan_tco:1, /* 8,9 */
181 link_wake_en:1, /* 8,9 */
182 arp_wake_en:1, /* 8 */
183 mc_wake_en:1); /* 8 */
184 u_int __FXP_BITFIELD4(:3,
188 u_int __FXP_BITFIELD2(linear_priority:3, /* 7 */
190 u_int __FXP_BITFIELD3(linear_pri_mode:1, /* 7 */
195 u_int __FXP_BITFIELD8(promiscuous:1,
197 wait_after_win:1, /* 8,9 */
199 ignore_ul:1, /* 8,9 */
203 u_int fc_delay_lsb:8; /* 8,9 */
204 u_int fc_delay_msb:8; /* 8,9 */
205 u_int __FXP_BITFIELD6(stripping:1,
208 long_rx_en:1, /* 8,9 */
209 pri_fc_thresh:3, /* 8,9 */
211 u_int __FXP_BITFIELD8(ia_wake_en:1, /* 8 */
212 magic_pkt_dis:1, /* 8,9,!9ER */
213 tx_fc_dis:1, /* 8,9 */
214 rx_fc_restop:1, /* 8,9 */
215 rx_fc_restart:1, /* 8,9 */
216 fc_filter:1, /* 8,9 */
219 u_int __FXP_BITFIELD4(:5,
220 pri_fc_loc:1, /* 8,9 */
223 u_int __FXP_BITFIELD3(:3, mc_all:1, :4);
225 /* Bytes 22 - 31 -- i82550 only */
226 u_int __FXP_BITFIELD3(gamla_rx:1,
238 uint8_t mc_addr[MAXMCADDR][6];
241 #define MAXUCODESIZE 192
242 struct fxp_cb_ucode {
246 uint32_t ucode[MAXUCODESIZE];
250 * Number of DMA segments in a TxCB.
252 #define FXP_NTXSEG 32
261 * The following fields are valid only when
262 * using the IPCB command block for TX checksum offload
263 * (and TCP large send, VLANs, and (I think) IPsec). To use
264 * them, you must enable extended TxCBs (available only
265 * on the 82559 and later) and use the IPCBXMIT command.
266 * Note that Intel defines the IPCB to be 32 bytes long,
267 * the last 8 bytes of which comprise the first entry
268 * in the TBD array (see note below). This means we only
269 * have to define 8 extra bytes here.
271 uint16_t ipcb_schedule_low;
272 uint8_t ipcb_ip_schedule;
273 uint8_t ipcb_ip_activation_high;
274 uint16_t ipcb_vlan_id;
275 uint8_t ipcb_ip_header_offset;
276 uint8_t ipcb_tcp_header_offset;
283 uint32_t tbd_array_addr;
285 uint8_t tx_threshold;
289 * The following structure isn't actually part of the TxCB,
290 * unless the extended TxCB feature is being used. In this
291 * case, the first two elements of the structure below are
292 * fetched along with the TxCB.
295 struct fxp_ipcb ipcb;
296 struct fxp_tbd tbd[FXP_NTXSEG + 1];
300 #define tbd tx_cb_u.tbd
301 #define ipcb_schedule_low tx_cb_u.ipcb.ipcb_schedule_low
302 #define ipcb_ip_schedule tx_cb_u.ipcb.ipcb_ip_schedule
303 #define ipcb_ip_activation_high tx_cb_u.ipcb.ipcb_ip_activation_high
304 #define ipcb_vlan_id tx_cb_u.ipcb.ipcb_vlan_id
305 #define ipcb_ip_header_offset tx_cb_u.ipcb.ipcb_ip_header_offset
306 #define ipcb_tcp_header_offset tx_cb_u.ipcb.ipcb_tcp_header_offset
309 * IPCB field definitions
311 #define FXP_IPCB_IP_CHECKSUM_ENABLE 0x10
312 #define FXP_IPCB_TCPUDP_CHECKSUM_ENABLE 0x20
313 #define FXP_IPCB_TCP_PACKET 0x40
314 #define FXP_IPCB_LARGESEND_ENABLE 0x80
315 #define FXP_IPCB_HARDWAREPARSING_ENABLE 0x01
316 #define FXP_IPCB_INSERTVLAN_ENABLE 0x02
319 * Control Block (CB) definitions
323 #define FXP_CB_STATUS_OK 0x2000
324 #define FXP_CB_STATUS_C 0x8000
326 #define FXP_CB_COMMAND_NOP 0x0
327 #define FXP_CB_COMMAND_IAS 0x1
328 #define FXP_CB_COMMAND_CONFIG 0x2
329 #define FXP_CB_COMMAND_MCAS 0x3
330 #define FXP_CB_COMMAND_XMIT 0x4
331 #define FXP_CB_COMMAND_UCODE 0x5
332 #define FXP_CB_COMMAND_DUMP 0x6
333 #define FXP_CB_COMMAND_DIAG 0x7
334 #define FXP_CB_COMMAND_LOADFILT 0x8
335 #define FXP_CB_COMMAND_IPCBXMIT 0x9
338 #define FXP_CB_COMMAND_SF 0x0008 /* simple/flexible mode */
339 #define FXP_CB_COMMAND_I 0x2000 /* generate interrupt on completion */
340 #define FXP_CB_COMMAND_S 0x4000 /* suspend on completion */
341 #define FXP_CB_COMMAND_EL 0x8000 /* end of list */
349 uint16_t rfa_control;
352 uint16_t actual_size;
356 * The following fields are only available when using
357 * extended receive mode on an 82550/82551 chipset.
359 uint16_t rfax_vlan_id;
360 uint8_t rfax_rx_parser_sts;
362 uint16_t rfax_security_sts;
363 uint8_t rfax_csum_sts;
364 uint8_t rfax_zerocopy_sts;
367 #define FXP_RFAX_LEN 16
369 #define FXP_RFA_STATUS_RCOL 0x0001 /* receive collision */
370 #define FXP_RFA_STATUS_IAMATCH 0x0002 /* 0 = matches station address */
371 #define FXP_RFA_STATUS_NOAMATCH 0x0004 /* 1 = doesn't match anything */
372 #define FXP_RFA_STATUS_PARSE 0x0008 /* pkt parse ok (82550/1 only) */
373 #define FXP_RFA_STATUS_S4 0x0010 /* receive error from PHY */
374 #define FXP_RFA_STATUS_TL 0x0020 /* type/length */
375 #define FXP_RFA_STATUS_FTS 0x0080 /* frame too short */
376 #define FXP_RFA_STATUS_OVERRUN 0x0100 /* DMA overrun */
377 #define FXP_RFA_STATUS_RNR 0x0200 /* no resources */
378 #define FXP_RFA_STATUS_ALIGN 0x0400 /* alignment error */
379 #define FXP_RFA_STATUS_CRC 0x0800 /* CRC error */
380 #define FXP_RFA_STATUS_VLAN 0x1000 /* VLAN tagged frame */
381 #define FXP_RFA_STATUS_OK 0x2000 /* packet received okay */
382 #define FXP_RFA_STATUS_C 0x8000 /* packet reception complete */
383 #define FXP_RFA_CONTROL_SF 0x08 /* simple/flexible memory mode */
384 #define FXP_RFA_CONTROL_H 0x10 /* header RFD */
385 #define FXP_RFA_CONTROL_S 0x4000 /* suspend after reception */
386 #define FXP_RFA_CONTROL_EL 0x8000 /* end of list */
388 /* Bits in the 'csum_sts' byte */
389 #define FXP_RFDX_CS_TCPUDP_CSUM_BIT_VALID 0x10
390 #define FXP_RFDX_CS_TCPUDP_CSUM_VALID 0x20
391 #define FXP_RFDX_CS_IP_CSUM_BIT_VALID 0x01
392 #define FXP_RFDX_CS_IP_CSUM_VALID 0x02
394 /* Bits in the 'packet parser' byte */
395 #define FXP_RFDX_P_PARSE_BIT 0x08
396 #define FXP_RFDX_P_CSUM_PROTOCOL_MASK 0x03
397 #define FXP_RFDX_P_TCP_PACKET 0x00
398 #define FXP_RFDX_P_UDP_PACKET 0x01
399 #define FXP_RFDX_P_IP_PACKET 0x03
402 * Statistics dump area definitions
407 uint32_t tx_latecols;
408 uint32_t tx_underruns;
410 uint32_t tx_deffered;
411 uint32_t tx_single_collisions;
412 uint32_t tx_multiple_collisions;
413 uint32_t tx_total_collisions;
415 uint32_t rx_crc_errors;
416 uint32_t rx_alignment_errors;
417 uint32_t rx_rnr_errors;
418 uint32_t rx_overrun_errors;
419 uint32_t rx_cdt_errors;
420 uint32_t rx_shortframes;
421 uint32_t completion_status;
423 #define FXP_STATS_DUMP_COMPLETE 0xa005
424 #define FXP_STATS_DR_COMPLETE 0xa007
427 * Serial EEPROM control register bits
429 #define FXP_EEPROM_EESK 0x01 /* shift clock */
430 #define FXP_EEPROM_EECS 0x02 /* chip select */
431 #define FXP_EEPROM_EEDI 0x04 /* data in */
432 #define FXP_EEPROM_EEDO 0x08 /* data out */
435 * Serial EEPROM opcodes, including start bit
437 #define FXP_EEPROM_OPC_ERASE 0x4
438 #define FXP_EEPROM_OPC_WRITE 0x5
439 #define FXP_EEPROM_OPC_READ 0x6
442 * Management Data Interface opcodes
444 #define FXP_MDI_WRITE 0x1
445 #define FXP_MDI_READ 0x2
450 #define FXP_PHY_DEVICE_MASK 0x3f00
451 #define FXP_PHY_SERIAL_ONLY 0x8000
452 #define FXP_PHY_NONE 0
453 #define FXP_PHY_82553A 1
454 #define FXP_PHY_82553C 2
455 #define FXP_PHY_82503 3
456 #define FXP_PHY_DP83840 4
457 #define FXP_PHY_80C240 5
458 #define FXP_PHY_80C24 6
459 #define FXP_PHY_82555 7
460 #define FXP_PHY_DP83840A 10
461 #define FXP_PHY_82555B 11
464 * Chip revision values.
466 #define FXP_REV_82557 1 /* catchall 82557 chip type */
467 #define FXP_REV_82558_A4 4 /* 82558 A4 stepping */
468 #define FXP_REV_82558_B0 5 /* 82558 B0 stepping */
469 #define FXP_REV_82559_A0 8 /* 82559 A0 stepping */
470 #define FXP_REV_82559S_A 9 /* 82559S A stepping */
471 #define FXP_REV_82550 12
472 #define FXP_REV_82550_C 13 /* 82550 C stepping */
473 #define FXP_REV_82551_E 14 /* 82551 */
474 #define FXP_REV_82551_F 15 /* 82551 */
475 #define FXP_REV_82551_10 16 /* 82551 */