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FreeBSD/Linux Kernel Cross Reference
sys/pci/if_rlreg.h

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  1 /*-
  2  * Copyright (c) 1997, 1998-2003
  3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  4  *
  5  * Redistribution and use in source and binary forms, with or without
  6  * modification, are permitted provided that the following conditions
  7  * are met:
  8  * 1. Redistributions of source code must retain the above copyright
  9  *    notice, this list of conditions and the following disclaimer.
 10  * 2. Redistributions in binary form must reproduce the above copyright
 11  *    notice, this list of conditions and the following disclaimer in the
 12  *    documentation and/or other materials provided with the distribution.
 13  * 3. All advertising materials mentioning features or use of this software
 14  *    must display the following acknowledgement:
 15  *      This product includes software developed by Bill Paul.
 16  * 4. Neither the name of the author nor the names of any co-contributors
 17  *    may be used to endorse or promote products derived from this software
 18  *    without specific prior written permission.
 19  *
 20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
 21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
 24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 30  * THE POSSIBILITY OF SUCH DAMAGE.
 31  *
 32  * $FreeBSD: src/sys/pci/if_rlreg.h,v 1.84 2008/11/02 16:50:57 imp Exp $
 33  */
 34 
 35 /*
 36  * RealTek 8129/8139 register offsets
 37  */
 38 #define RL_IDR0         0x0000          /* ID register 0 (station addr) */
 39 #define RL_IDR1         0x0001          /* Must use 32-bit accesses (?) */
 40 #define RL_IDR2         0x0002
 41 #define RL_IDR3         0x0003
 42 #define RL_IDR4         0x0004
 43 #define RL_IDR5         0x0005
 44                                         /* 0006-0007 reserved */
 45 #define RL_MAR0         0x0008          /* Multicast hash table */
 46 #define RL_MAR1         0x0009
 47 #define RL_MAR2         0x000A
 48 #define RL_MAR3         0x000B
 49 #define RL_MAR4         0x000C
 50 #define RL_MAR5         0x000D
 51 #define RL_MAR6         0x000E
 52 #define RL_MAR7         0x000F
 53 
 54 #define RL_TXSTAT0      0x0010          /* status of TX descriptor 0 */
 55 #define RL_TXSTAT1      0x0014          /* status of TX descriptor 1 */
 56 #define RL_TXSTAT2      0x0018          /* status of TX descriptor 2 */
 57 #define RL_TXSTAT3      0x001C          /* status of TX descriptor 3 */
 58 
 59 #define RL_TXADDR0      0x0020          /* address of TX descriptor 0 */
 60 #define RL_TXADDR1      0x0024          /* address of TX descriptor 1 */
 61 #define RL_TXADDR2      0x0028          /* address of TX descriptor 2 */
 62 #define RL_TXADDR3      0x002C          /* address of TX descriptor 3 */
 63 
 64 #define RL_RXADDR               0x0030  /* RX ring start address */
 65 #define RL_RX_EARLY_BYTES       0x0034  /* RX early byte count */
 66 #define RL_RX_EARLY_STAT        0x0036  /* RX early status */
 67 #define RL_COMMAND      0x0037          /* command register */
 68 #define RL_CURRXADDR    0x0038          /* current address of packet read */
 69 #define RL_CURRXBUF     0x003A          /* current RX buffer address */
 70 #define RL_IMR          0x003C          /* interrupt mask register */
 71 #define RL_ISR          0x003E          /* interrupt status register */
 72 #define RL_TXCFG        0x0040          /* transmit config */
 73 #define RL_RXCFG        0x0044          /* receive config */
 74 #define RL_TIMERCNT     0x0048          /* timer count register */
 75 #define RL_MISSEDPKT    0x004C          /* missed packet counter */
 76 #define RL_EECMD        0x0050          /* EEPROM command register */
 77 #define RL_CFG0         0x0051          /* config register #0 */
 78 #define RL_CFG1         0x0052          /* config register #1 */
 79 #define RL_CFG2         0x0053          /* config register #2 */
 80 #define RL_CFG3         0x0054          /* config register #3 */
 81 #define RL_CFG4         0x0055          /* config register #4 */
 82 #define RL_CFG5         0x0056          /* config register #5 */
 83                                         /* 0057 reserved */
 84 #define RL_MEDIASTAT    0x0058          /* media status register (8139) */
 85                                         /* 0059-005A reserved */
 86 #define RL_MII          0x005A          /* 8129 chip only */
 87 #define RL_HALTCLK      0x005B
 88 #define RL_MULTIINTR    0x005C          /* multiple interrupt */
 89 #define RL_PCIREV       0x005E          /* PCI revision value */
 90                                         /* 005F reserved */
 91 #define RL_TXSTAT_ALL   0x0060          /* TX status of all descriptors */
 92 
 93 /* Direct PHY access registers only available on 8139 */
 94 #define RL_BMCR         0x0062          /* PHY basic mode control */
 95 #define RL_BMSR         0x0064          /* PHY basic mode status */
 96 #define RL_ANAR         0x0066          /* PHY autoneg advert */
 97 #define RL_LPAR         0x0068          /* PHY link partner ability */
 98 #define RL_ANER         0x006A          /* PHY autoneg expansion */
 99 
100 #define RL_DISCCNT      0x006C          /* disconnect counter */
101 #define RL_FALSECAR     0x006E          /* false carrier counter */
102 #define RL_NWAYTST      0x0070          /* NWAY test register */
103 #define RL_RX_ER        0x0072          /* RX_ER counter */
104 #define RL_CSCFG        0x0074          /* CS configuration register */
105 
106 /*
107  * When operating in special C+ mode, some of the registers in an
108  * 8139C+ chip have different definitions. These are also used for
109  * the 8169 gigE chip.
110  */
111 #define RL_DUMPSTATS_LO         0x0010  /* counter dump command register */
112 #define RL_DUMPSTATS_HI         0x0014  /* counter dump command register */
113 #define RL_TXLIST_ADDR_LO       0x0020  /* 64 bits, 256 byte alignment */
114 #define RL_TXLIST_ADDR_HI       0x0024  /* 64 bits, 256 byte alignment */
115 #define RL_TXLIST_ADDR_HPRIO_LO 0x0028  /* 64 bits, 256 byte alignment */
116 #define RL_TXLIST_ADDR_HPRIO_HI 0x002C  /* 64 bits, 256 byte alignment */
117 #define RL_CFG2                 0x0053
118 #define RL_TIMERINT             0x0054  /* interrupt on timer expire */
119 #define RL_TXSTART              0x00D9  /* 8 bits */
120 #define RL_CPLUS_CMD            0x00E0  /* 16 bits */
121 #define RL_RXLIST_ADDR_LO       0x00E4  /* 64 bits, 256 byte alignment */
122 #define RL_RXLIST_ADDR_HI       0x00E8  /* 64 bits, 256 byte alignment */
123 #define RL_EARLY_TX_THRESH      0x00EC  /* 8 bits */
124 
125 /*
126  * Registers specific to the 8169 gigE chip
127  */
128 #define RL_TIMERINT_8169        0x0058  /* different offset than 8139 */
129 #define RL_PHYAR                0x0060
130 #define RL_TBICSR               0x0064
131 #define RL_TBI_ANAR             0x0068
132 #define RL_TBI_LPAR             0x006A
133 #define RL_GMEDIASTAT           0x006C  /* 8 bits */
134 #define RL_MAXRXPKTLEN          0x00DA  /* 16 bits, chip multiplies by 8 */
135 #define RL_GTXSTART             0x0038  /* 8 bits */
136 
137 /*
138  * TX config register bits
139  */
140 #define RL_TXCFG_CLRABRT        0x00000001      /* retransmit aborted pkt */
141 #define RL_TXCFG_MAXDMA         0x00000700      /* max DMA burst size */
142 #define RL_TXCFG_CRCAPPEND      0x00010000      /* CRC append (0 = yes) */
143 #define RL_TXCFG_LOOPBKTST      0x00060000      /* loopback test */
144 #define RL_TXCFG_IFG2           0x00080000      /* 8169 only */
145 #define RL_TXCFG_IFG            0x03000000      /* interframe gap */
146 #define RL_TXCFG_HWREV          0x7CC00000
147 
148 #define RL_LOOPTEST_OFF         0x00000000
149 #define RL_LOOPTEST_ON          0x00020000
150 #define RL_LOOPTEST_ON_CPLUS    0x00060000
151 
152 /* Known revision codes. */
153 
154 #define RL_HWREV_8169           0x00000000
155 #define RL_HWREV_8110S          0x00800000
156 #define RL_HWREV_8169S          0x04000000
157 #define RL_HWREV_8169_8110SB    0x10000000
158 #define RL_HWREV_8169_8110SC    0x18000000
159 #define RL_HWREV_8102EL         0x24800000
160 #define RL_HWREV_8168_SPIN1     0x30000000
161 #define RL_HWREV_8100E          0x30800000
162 #define RL_HWREV_8101E          0x34000000
163 #define RL_HWREV_8102E          0x34800000
164 #define RL_HWREV_8168_SPIN2     0x38000000
165 #define RL_HWREV_8168_SPIN3     0x38400000
166 #define RL_HWREV_8168C          0x3C000000
167 #define RL_HWREV_8168C_SPIN2    0x3C400000
168 #define RL_HWREV_8168CP         0x3C800000
169 #define RL_HWREV_8139           0x60000000
170 #define RL_HWREV_8139A          0x70000000
171 #define RL_HWREV_8139AG         0x70800000
172 #define RL_HWREV_8139B          0x78000000
173 #define RL_HWREV_8130           0x7C000000
174 #define RL_HWREV_8139C          0x74000000
175 #define RL_HWREV_8139D          0x74400000
176 #define RL_HWREV_8139CPLUS      0x74800000
177 #define RL_HWREV_8101           0x74c00000
178 #define RL_HWREV_8100           0x78800000
179 #define RL_HWREV_8169_8110SBL   0x7CC00000
180 
181 #define RL_TXDMA_16BYTES        0x00000000
182 #define RL_TXDMA_32BYTES        0x00000100
183 #define RL_TXDMA_64BYTES        0x00000200
184 #define RL_TXDMA_128BYTES       0x00000300
185 #define RL_TXDMA_256BYTES       0x00000400
186 #define RL_TXDMA_512BYTES       0x00000500
187 #define RL_TXDMA_1024BYTES      0x00000600
188 #define RL_TXDMA_2048BYTES      0x00000700
189 
190 /*
191  * Transmit descriptor status register bits.
192  */
193 #define RL_TXSTAT_LENMASK       0x00001FFF
194 #define RL_TXSTAT_OWN           0x00002000
195 #define RL_TXSTAT_TX_UNDERRUN   0x00004000
196 #define RL_TXSTAT_TX_OK         0x00008000
197 #define RL_TXSTAT_EARLY_THRESH  0x003F0000
198 #define RL_TXSTAT_COLLCNT       0x0F000000
199 #define RL_TXSTAT_CARR_HBEAT    0x10000000
200 #define RL_TXSTAT_OUTOFWIN      0x20000000
201 #define RL_TXSTAT_TXABRT        0x40000000
202 #define RL_TXSTAT_CARRLOSS      0x80000000
203 
204 /*
205  * Interrupt status register bits.
206  */
207 #define RL_ISR_RX_OK            0x0001
208 #define RL_ISR_RX_ERR           0x0002
209 #define RL_ISR_TX_OK            0x0004
210 #define RL_ISR_TX_ERR           0x0008
211 #define RL_ISR_RX_OVERRUN       0x0010
212 #define RL_ISR_PKT_UNDERRUN     0x0020
213 #define RL_ISR_LINKCHG          0x0020  /* 8169 only */
214 #define RL_ISR_FIFO_OFLOW       0x0040  /* 8139 only */
215 #define RL_ISR_TX_DESC_UNAVAIL  0x0080  /* C+ only */
216 #define RL_ISR_SWI              0x0100  /* C+ only */
217 #define RL_ISR_CABLE_LEN_CHGD   0x2000
218 #define RL_ISR_PCS_TIMEOUT      0x4000  /* 8129 only */
219 #define RL_ISR_TIMEOUT_EXPIRED  0x4000
220 #define RL_ISR_SYSTEM_ERR       0x8000
221 
222 #define RL_INTRS        \
223         (RL_ISR_TX_OK|RL_ISR_RX_OK|RL_ISR_RX_ERR|RL_ISR_TX_ERR|         \
224         RL_ISR_RX_OVERRUN|RL_ISR_PKT_UNDERRUN|RL_ISR_FIFO_OFLOW|        \
225         RL_ISR_PCS_TIMEOUT|RL_ISR_SYSTEM_ERR)
226 
227 #ifdef RE_TX_MODERATION
228 #define RL_INTRS_CPLUS  \
229         (RL_ISR_RX_OK|RL_ISR_RX_ERR|RL_ISR_TX_ERR|                      \
230         RL_ISR_RX_OVERRUN|RL_ISR_PKT_UNDERRUN|RL_ISR_FIFO_OFLOW|        \
231         RL_ISR_PCS_TIMEOUT|RL_ISR_SYSTEM_ERR|RL_ISR_TIMEOUT_EXPIRED)
232 #else
233 #define RL_INTRS_CPLUS  \
234         (RL_ISR_RX_OK|RL_ISR_RX_ERR|RL_ISR_TX_ERR|RL_ISR_TX_OK|         \
235         RL_ISR_RX_OVERRUN|RL_ISR_PKT_UNDERRUN|RL_ISR_FIFO_OFLOW|        \
236         RL_ISR_PCS_TIMEOUT|RL_ISR_SYSTEM_ERR|RL_ISR_TIMEOUT_EXPIRED)
237 #endif
238 
239 /*
240  * Media status register. (8139 only)
241  */
242 #define RL_MEDIASTAT_RXPAUSE    0x01
243 #define RL_MEDIASTAT_TXPAUSE    0x02
244 #define RL_MEDIASTAT_LINK       0x04
245 #define RL_MEDIASTAT_SPEED10    0x08
246 #define RL_MEDIASTAT_RXFLOWCTL  0x40    /* duplex mode */
247 #define RL_MEDIASTAT_TXFLOWCTL  0x80    /* duplex mode */
248 
249 /*
250  * Receive config register.
251  */
252 #define RL_RXCFG_RX_ALLPHYS     0x00000001      /* accept all nodes */
253 #define RL_RXCFG_RX_INDIV       0x00000002      /* match filter */
254 #define RL_RXCFG_RX_MULTI       0x00000004      /* accept all multicast */
255 #define RL_RXCFG_RX_BROAD       0x00000008      /* accept all broadcast */
256 #define RL_RXCFG_RX_RUNT        0x00000010
257 #define RL_RXCFG_RX_ERRPKT      0x00000020
258 #define RL_RXCFG_WRAP           0x00000080
259 #define RL_RXCFG_MAXDMA         0x00000700
260 #define RL_RXCFG_BUFSZ          0x00001800
261 #define RL_RXCFG_FIFOTHRESH     0x0000E000
262 #define RL_RXCFG_EARLYTHRESH    0x07000000
263 
264 #define RL_RXDMA_16BYTES        0x00000000
265 #define RL_RXDMA_32BYTES        0x00000100
266 #define RL_RXDMA_64BYTES        0x00000200
267 #define RL_RXDMA_128BYTES       0x00000300
268 #define RL_RXDMA_256BYTES       0x00000400
269 #define RL_RXDMA_512BYTES       0x00000500
270 #define RL_RXDMA_1024BYTES      0x00000600
271 #define RL_RXDMA_UNLIMITED      0x00000700
272 
273 #define RL_RXBUF_8              0x00000000
274 #define RL_RXBUF_16             0x00000800
275 #define RL_RXBUF_32             0x00001000
276 #define RL_RXBUF_64             0x00001800
277 
278 #define RL_RXFIFO_16BYTES       0x00000000
279 #define RL_RXFIFO_32BYTES       0x00002000
280 #define RL_RXFIFO_64BYTES       0x00004000
281 #define RL_RXFIFO_128BYTES      0x00006000
282 #define RL_RXFIFO_256BYTES      0x00008000
283 #define RL_RXFIFO_512BYTES      0x0000A000
284 #define RL_RXFIFO_1024BYTES     0x0000C000
285 #define RL_RXFIFO_NOTHRESH      0x0000E000
286 
287 /*
288  * Bits in RX status header (included with RX'ed packet
289  * in ring buffer).
290  */
291 #define RL_RXSTAT_RXOK          0x00000001
292 #define RL_RXSTAT_ALIGNERR      0x00000002
293 #define RL_RXSTAT_CRCERR        0x00000004
294 #define RL_RXSTAT_GIANT         0x00000008
295 #define RL_RXSTAT_RUNT          0x00000010
296 #define RL_RXSTAT_BADSYM        0x00000020
297 #define RL_RXSTAT_BROAD         0x00002000
298 #define RL_RXSTAT_INDIV         0x00004000
299 #define RL_RXSTAT_MULTI         0x00008000
300 #define RL_RXSTAT_LENMASK       0xFFFF0000
301 
302 #define RL_RXSTAT_UNFINISHED    0xFFF0          /* DMA still in progress */
303 /*
304  * Command register.
305  */
306 #define RL_CMD_EMPTY_RXBUF      0x0001
307 #define RL_CMD_TX_ENB           0x0004
308 #define RL_CMD_RX_ENB           0x0008
309 #define RL_CMD_RESET            0x0010
310 
311 /*
312  * Twister register values.  These are completely undocumented and derived
313  * from public sources.
314  */
315 #define RL_CSCFG_LINK_OK        0x0400
316 #define RL_CSCFG_CHANGE         0x0800
317 #define RL_CSCFG_STATUS         0xf000
318 #define RL_CSCFG_ROW3           0x7000
319 #define RL_CSCFG_ROW2           0x3000
320 #define RL_CSCFG_ROW1           0x1000
321 #define RL_CSCFG_LINK_DOWN_OFF_CMD 0x03c0
322 #define RL_CSCFG_LINK_DOWN_CMD  0xf3c0
323 
324 #define RL_NWAYTST_RESET        0
325 #define RL_NWAYTST_CBL_TEST     0x20
326 
327 #define RL_PARA78               0x78
328 #define RL_PARA78_DEF           0x78fa8388
329 #define RL_PARA7C               0x7C
330 #define RL_PARA7C_DEF           0xcb38de43
331 #define RL_PARA7C_RETUNE        0xfb38de03
332 /*
333  * EEPROM control register
334  */
335 #define RL_EE_DATAOUT           0x01    /* Data out */
336 #define RL_EE_DATAIN            0x02    /* Data in */
337 #define RL_EE_CLK               0x04    /* clock */
338 #define RL_EE_SEL               0x08    /* chip select */
339 #define RL_EE_MODE              (0x40|0x80)
340 
341 #define RL_EEMODE_OFF           0x00
342 #define RL_EEMODE_AUTOLOAD      0x40
343 #define RL_EEMODE_PROGRAM       0x80
344 #define RL_EEMODE_WRITECFG      (0x80|0x40)
345 
346 /* 9346 EEPROM commands */
347 #define RL_9346_ADDR_LEN        6       /* 93C46 1K: 128x16 */
348 #define RL_9356_ADDR_LEN        8       /* 93C56 2K: 256x16 */
349 
350 #define RL_9346_WRITE          0x5
351 #define RL_9346_READ           0x6
352 #define RL_9346_ERASE          0x7
353 #define RL_9346_EWEN           0x4
354 #define RL_9346_EWEN_ADDR      0x30
355 #define RL_9456_EWDS           0x4
356 #define RL_9346_EWDS_ADDR      0x00
357 
358 #define RL_EECMD_WRITE          0x140
359 #define RL_EECMD_READ_6BIT      0x180
360 #define RL_EECMD_READ_8BIT      0x600
361 #define RL_EECMD_ERASE          0x1c0
362 
363 #define RL_EE_ID                0x00
364 #define RL_EE_PCI_VID           0x01
365 #define RL_EE_PCI_DID           0x02
366 /* Location of station address inside EEPROM */
367 #define RL_EE_EADDR             0x07
368 
369 /*
370  * MII register (8129 only)
371  */
372 #define RL_MII_CLK              0x01
373 #define RL_MII_DATAIN           0x02
374 #define RL_MII_DATAOUT          0x04
375 #define RL_MII_DIR              0x80    /* 0 == input, 1 == output */
376 
377 /*
378  * Config 0 register
379  */
380 #define RL_CFG0_ROM0            0x01
381 #define RL_CFG0_ROM1            0x02
382 #define RL_CFG0_ROM2            0x04
383 #define RL_CFG0_PL0             0x08
384 #define RL_CFG0_PL1             0x10
385 #define RL_CFG0_10MBPS          0x20    /* 10 Mbps internal mode */
386 #define RL_CFG0_PCS             0x40
387 #define RL_CFG0_SCR             0x80
388 
389 /*
390  * Config 1 register
391  */
392 #define RL_CFG1_PWRDWN          0x01
393 #define RL_CFG1_PME             0x01    
394 #define RL_CFG1_SLEEP           0x02
395 #define RL_CFG1_VPDEN           0x02
396 #define RL_CFG1_IOMAP           0x04
397 #define RL_CFG1_MEMMAP          0x08
398 #define RL_CFG1_RSVD            0x10
399 #define RL_CFG1_LWACT           0x10
400 #define RL_CFG1_DRVLOAD         0x20
401 #define RL_CFG1_LED0            0x40
402 #define RL_CFG1_FULLDUPLEX      0x40    /* 8129 only */
403 #define RL_CFG1_LED1            0x80
404 
405 /*
406  * Config 2 register
407  */
408 #define RL_CFG2_PCI33MHZ        0x00
409 #define RL_CFG2_PCI66MHZ        0x01
410 #define RL_CFG2_PCI64BIT        0x08
411 #define RL_CFG2_AUXPWR          0x10
412 #define RL_CFG2_MSI             0x20
413 
414 /*
415  * Config 3 register
416  */
417 #define RL_CFG3_GRANTSEL        0x80
418 #define RL_CFG3_WOL_MAGIC       0x20
419 #define RL_CFG3_WOL_LINK        0x10
420 #define RL_CFG3_FAST_B2B        0x01
421 
422 /*
423  * Config 4 register
424  */
425 #define RL_CFG4_LWPTN           0x04
426 #define RL_CFG4_LWPME           0x10
427 
428 /*
429  * Config 5 register
430  */
431 #define RL_CFG5_WOL_BCAST       0x40
432 #define RL_CFG5_WOL_MCAST       0x20
433 #define RL_CFG5_WOL_UCAST       0x10
434 #define RL_CFG5_WOL_LANWAKE     0x02
435 #define RL_CFG5_PME_STS         0x01
436 
437 /*
438  * 8139C+ register definitions
439  */
440 
441 /* RL_DUMPSTATS_LO register */
442 
443 #define RL_DUMPSTATS_START      0x00000008
444 
445 /* Transmit start register */
446 
447 #define RL_TXSTART_SWI          0x01    /* generate TX interrupt */
448 #define RL_TXSTART_START        0x40    /* start normal queue transmit */
449 #define RL_TXSTART_HPRIO_START  0x80    /* start hi prio queue transmit */
450 
451 /*
452  * Config 2 register, 8139C+/8169/8169S/8110S only
453  */
454 #define RL_CFG2_BUSFREQ         0x07
455 #define RL_CFG2_BUSWIDTH        0x08
456 #define RL_CFG2_AUXPWRSTS       0x10
457 
458 #define RL_BUSFREQ_33MHZ        0x00
459 #define RL_BUSFREQ_66MHZ        0x01
460                                         
461 #define RL_BUSWIDTH_32BITS      0x00
462 #define RL_BUSWIDTH_64BITS      0x08
463 
464 /* C+ mode command register */
465 
466 #define RL_CPLUSCMD_TXENB       0x0001  /* enable C+ transmit mode */
467 #define RL_CPLUSCMD_RXENB       0x0002  /* enable C+ receive mode */
468 #define RL_CPLUSCMD_PCI_MRW     0x0008  /* enable PCI multi-read/write */
469 #define RL_CPLUSCMD_PCI_DAC     0x0010  /* PCI dual-address cycle only */
470 #define RL_CPLUSCMD_RXCSUM_ENB  0x0020  /* enable RX checksum offload */
471 #define RL_CPLUSCMD_VLANSTRIP   0x0040  /* enable VLAN tag stripping */
472 #define RL_CPLUSCMD_MACSTAT_DIS 0x0080  /* 8168B/C/CP */
473 #define RL_CPLUSCMD_ASF         0x0100  /* 8168C/CP */
474 #define RL_CPLUSCMD_DBG_SEL     0x0200  /* 8168C/CP */
475 #define RL_CPLUSCMD_FORCE_TXFC  0x0400  /* 8168C/CP */
476 #define RL_CPLUSCMD_FORCE_RXFC  0x0800  /* 8168C/CP */
477 #define RL_CPLUSCMD_FORCE_HDPX  0x1000  /* 8168C/CP */
478 #define RL_CPLUSCMD_NORMAL_MODE 0x2000  /* 8168C/CP */
479 #define RL_CPLUSCMD_DBG_ENB     0x4000  /* 8168C/CP */
480 #define RL_CPLUSCMD_BIST_ENB    0x8000  /* 8168C/CP */
481 
482 /* C+ early transmit threshold */
483 
484 #define RL_EARLYTXTHRESH_CNT    0x003F  /* byte count times 8 */ 
485 
486 /*
487  * Gigabit PHY access register (8169 only)
488  */
489 
490 #define RL_PHYAR_PHYDATA        0x0000FFFF
491 #define RL_PHYAR_PHYREG         0x001F0000
492 #define RL_PHYAR_BUSY           0x80000000
493 
494 /*
495  * Gigabit media status (8169 only)
496  */
497 #define RL_GMEDIASTAT_FDX       0x01    /* full duplex */
498 #define RL_GMEDIASTAT_LINK      0x02    /* link up */
499 #define RL_GMEDIASTAT_10MBPS    0x04    /* 10mps link */
500 #define RL_GMEDIASTAT_100MBPS   0x08    /* 100mbps link */
501 #define RL_GMEDIASTAT_1000MBPS  0x10    /* gigE link */
502 #define RL_GMEDIASTAT_RXFLOW    0x20    /* RX flow control on */
503 #define RL_GMEDIASTAT_TXFLOW    0x40    /* TX flow control on */
504 #define RL_GMEDIASTAT_TBI       0x80    /* TBI enabled */
505 
506 /*
507  * The RealTek doesn't use a fragment-based descriptor mechanism.
508  * Instead, there are only four register sets, each or which represents
509  * one 'descriptor.' Basically, each TX descriptor is just a contiguous
510  * packet buffer (32-bit aligned!) and we place the buffer addresses in
511  * the registers so the chip knows where they are.
512  *
513  * We can sort of kludge together the same kind of buffer management
514  * used in previous drivers, but we have to do buffer copies almost all
515  * the time, so it doesn't really buy us much.
516  *
517  * For reception, there's just one large buffer where the chip stores
518  * all received packets.
519  */
520 
521 #define RL_RX_BUF_SZ            RL_RXBUF_64
522 #define RL_RXBUFLEN             (1 << ((RL_RX_BUF_SZ >> 11) + 13))
523 #define RL_TX_LIST_CNT          4
524 #define RL_MIN_FRAMELEN         60
525 #define RL_TX_8139_BUF_ALIGN    4
526 #define RL_RX_8139_BUF_ALIGN    8
527 #define RL_RX_8139_BUF_RESERVE  sizeof(int64_t)
528 #define RL_RX_8139_BUF_GUARD_SZ \
529         (ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN + RL_RX_8139_BUF_RESERVE) 
530 #define RL_TXTHRESH(x)          ((x) << 11)
531 #define RL_TX_THRESH_INIT       96
532 #define RL_RX_FIFOTHRESH        RL_RXFIFO_NOTHRESH
533 #define RL_RX_MAXDMA            RL_RXDMA_UNLIMITED
534 #define RL_TX_MAXDMA            RL_TXDMA_2048BYTES
535 
536 #define RL_RXCFG_CONFIG (RL_RX_FIFOTHRESH|RL_RX_MAXDMA|RL_RX_BUF_SZ)
537 #define RL_TXCFG_CONFIG (RL_TXCFG_IFG|RL_TX_MAXDMA)
538 
539 #define RL_ETHER_ALIGN  2
540 
541 /*
542  * re(4) hardware ip4csum-tx could be mangled with 28 bytes or less IP packets.
543  */
544 #define RL_IP4CSUMTX_MINLEN     28
545 #define RL_IP4CSUMTX_PADLEN     (ETHER_HDR_LEN + RL_IP4CSUMTX_MINLEN)
546 
547 struct rl_chain_data {
548         uint16_t                cur_rx;
549         uint8_t                 *rl_rx_buf;
550         uint8_t                 *rl_rx_buf_ptr;
551 
552         struct mbuf             *rl_tx_chain[RL_TX_LIST_CNT];
553         bus_dmamap_t            rl_tx_dmamap[RL_TX_LIST_CNT];
554         bus_dma_tag_t           rl_tx_tag;
555         bus_dma_tag_t           rl_rx_tag;
556         bus_dmamap_t            rl_rx_dmamap;
557         bus_addr_t              rl_rx_buf_paddr;
558         uint8_t                 last_tx;
559         uint8_t                 cur_tx;
560 };
561 
562 #define RL_INC(x)               (x = (x + 1) % RL_TX_LIST_CNT)
563 #define RL_CUR_TXADDR(x)        ((x->rl_cdata.cur_tx * 4) + RL_TXADDR0)
564 #define RL_CUR_TXSTAT(x)        ((x->rl_cdata.cur_tx * 4) + RL_TXSTAT0)
565 #define RL_CUR_TXMBUF(x)        (x->rl_cdata.rl_tx_chain[x->rl_cdata.cur_tx])
566 #define RL_CUR_DMAMAP(x)        (x->rl_cdata.rl_tx_dmamap[x->rl_cdata.cur_tx])
567 #define RL_LAST_TXADDR(x)       ((x->rl_cdata.last_tx * 4) + RL_TXADDR0)
568 #define RL_LAST_TXSTAT(x)       ((x->rl_cdata.last_tx * 4) + RL_TXSTAT0)
569 #define RL_LAST_TXMBUF(x)       (x->rl_cdata.rl_tx_chain[x->rl_cdata.last_tx])
570 #define RL_LAST_DMAMAP(x)       (x->rl_cdata.rl_tx_dmamap[x->rl_cdata.last_tx])
571 
572 struct rl_type {
573         uint16_t                rl_vid;
574         uint16_t                rl_did;
575         int                     rl_basetype;
576         char                    *rl_name;
577 };
578 
579 struct rl_hwrev {
580         uint32_t                rl_rev;
581         int                     rl_type;
582         char                    *rl_desc;
583 };
584 
585 struct rl_mii_frame {
586         uint8_t         mii_stdelim;
587         uint8_t         mii_opcode;
588         uint8_t         mii_phyaddr;
589         uint8_t         mii_regaddr;
590         uint8_t         mii_turnaround;
591         uint16_t        mii_data;
592 };
593 
594 /*
595  * MII constants
596  */
597 #define RL_MII_STARTDELIM       0x01
598 #define RL_MII_READOP           0x02
599 #define RL_MII_WRITEOP          0x01
600 #define RL_MII_TURNAROUND       0x02
601 
602 #define RL_8129                 1
603 #define RL_8139                 2
604 #define RL_8139CPLUS            3
605 #define RL_8169                 4
606 
607 #define RL_ISCPLUS(x)           ((x)->rl_type == RL_8139CPLUS ||        \
608                                  (x)->rl_type == RL_8169)
609 
610 /*
611  * The 8139C+ and 8160 gigE chips support descriptor-based TX
612  * and RX. In fact, they even support TCP large send. Descriptors
613  * must be allocated in contiguous blocks that are aligned on a
614  * 256-byte boundary. The rings can hold a maximum of 64 descriptors.
615  */
616 
617 /*
618  * RX/TX descriptor definition. When large send mode is enabled, the
619  * lower 11 bits of the TX rl_cmd word are used to hold the MSS, and
620  * the checksum offload bits are disabled. The structure layout is
621  * the same for RX and TX descriptors
622  */
623 
624 struct rl_desc {
625         uint32_t                rl_cmdstat;
626         uint32_t                rl_vlanctl;
627         uint32_t                rl_bufaddr_lo;
628         uint32_t                rl_bufaddr_hi;
629 };
630 
631 #define RL_TDESC_CMD_FRAGLEN    0x0000FFFF
632 #define RL_TDESC_CMD_TCPCSUM    0x00010000      /* TCP checksum enable */
633 #define RL_TDESC_CMD_UDPCSUM    0x00020000      /* UDP checksum enable */
634 #define RL_TDESC_CMD_IPCSUM     0x00040000      /* IP header checksum enable */
635 #define RL_TDESC_CMD_MSSVAL     0x07FF0000      /* Large send MSS value */
636 #define RL_TDESC_CMD_MSSVAL_SHIFT       16      /* Large send MSS value shift */
637 #define RL_TDESC_CMD_LGSEND     0x08000000      /* TCP large send enb */
638 #define RL_TDESC_CMD_EOF        0x10000000      /* end of frame marker */
639 #define RL_TDESC_CMD_SOF        0x20000000      /* start of frame marker */
640 #define RL_TDESC_CMD_EOR        0x40000000      /* end of ring marker */
641 #define RL_TDESC_CMD_OWN        0x80000000      /* chip owns descriptor */
642 
643 #define RL_TDESC_VLANCTL_TAG    0x00020000      /* Insert VLAN tag */
644 #define RL_TDESC_VLANCTL_DATA   0x0000FFFF      /* TAG data */
645 /* RTL8168C/RTL8168CP/RTL8111C/RTL8111CP */
646 #define RL_TDESC_CMD_UDPCSUMV2  0x80000000
647 #define RL_TDESC_CMD_TCPCSUMV2  0x40000000      
648 #define RL_TDESC_CMD_IPCSUMV2   0x20000000      
649 
650 /*
651  * Error bits are valid only on the last descriptor of a frame
652  * (i.e. RL_TDESC_CMD_EOF == 1)
653  */
654 
655 #define RL_TDESC_STAT_COLCNT    0x000F0000      /* collision count */
656 #define RL_TDESC_STAT_EXCESSCOL 0x00100000      /* excessive collisions */
657 #define RL_TDESC_STAT_LINKFAIL  0x00200000      /* link faulure */
658 #define RL_TDESC_STAT_OWINCOL   0x00400000      /* out-of-window collision */
659 #define RL_TDESC_STAT_TXERRSUM  0x00800000      /* transmit error summary */
660 #define RL_TDESC_STAT_UNDERRUN  0x02000000      /* TX underrun occured */
661 #define RL_TDESC_STAT_OWN       0x80000000
662 
663 /*
664  * RX descriptor cmd/vlan definitions
665  */
666 
667 #define RL_RDESC_CMD_EOR        0x40000000
668 #define RL_RDESC_CMD_OWN        0x80000000
669 #define RL_RDESC_CMD_BUFLEN     0x00001FFF
670 
671 #define RL_RDESC_STAT_OWN       0x80000000
672 #define RL_RDESC_STAT_EOR       0x40000000
673 #define RL_RDESC_STAT_SOF       0x20000000
674 #define RL_RDESC_STAT_EOF       0x10000000
675 #define RL_RDESC_STAT_FRALIGN   0x08000000      /* frame alignment error */
676 #define RL_RDESC_STAT_MCAST     0x04000000      /* multicast pkt received */
677 #define RL_RDESC_STAT_UCAST     0x02000000      /* unicast pkt received */
678 #define RL_RDESC_STAT_BCAST     0x01000000      /* broadcast pkt received */
679 #define RL_RDESC_STAT_BUFOFLOW  0x00800000      /* out of buffer space */
680 #define RL_RDESC_STAT_FIFOOFLOW 0x00400000      /* FIFO overrun */
681 #define RL_RDESC_STAT_GIANT     0x00200000      /* pkt > 4096 bytes */
682 #define RL_RDESC_STAT_RXERRSUM  0x00100000      /* RX error summary */
683 #define RL_RDESC_STAT_RUNT      0x00080000      /* runt packet received */
684 #define RL_RDESC_STAT_CRCERR    0x00040000      /* CRC error */
685 #define RL_RDESC_STAT_PROTOID   0x00030000      /* Protocol type */
686 #define RL_RDESC_STAT_UDP       0x00020000      /* UDP, 8168C/CP, 8111C/CP */
687 #define RL_RDESC_STAT_TCP       0x00010000      /* TCP, 8168C/CP, 8111C/CP */
688 #define RL_RDESC_STAT_IPSUMBAD  0x00008000      /* IP header checksum bad */
689 #define RL_RDESC_STAT_UDPSUMBAD 0x00004000      /* UDP checksum bad */
690 #define RL_RDESC_STAT_TCPSUMBAD 0x00002000      /* TCP checksum bad */
691 #define RL_RDESC_STAT_FRAGLEN   0x00001FFF      /* RX'ed frame/frag len */
692 #define RL_RDESC_STAT_GFRAGLEN  0x00003FFF      /* RX'ed frame/frag len */
693 #define RL_RDESC_STAT_ERRS      (RL_RDESC_STAT_GIANT|RL_RDESC_STAT_RUNT| \
694                                  RL_RDESC_STAT_CRCERR)
695 
696 #define RL_RDESC_VLANCTL_TAG    0x00010000      /* VLAN tag available
697                                                    (rl_vlandata valid)*/
698 #define RL_RDESC_VLANCTL_DATA   0x0000FFFF      /* TAG data */
699 /* RTL8168C/RTL8168CP/RTL8111C/RTL8111CP */
700 #define RL_RDESC_IPV6           0x80000000
701 #define RL_RDESC_IPV4           0x40000000
702 
703 #define RL_PROTOID_NONIP        0x00000000
704 #define RL_PROTOID_TCPIP        0x00010000
705 #define RL_PROTOID_UDPIP        0x00020000
706 #define RL_PROTOID_IP           0x00030000
707 #define RL_TCPPKT(x)            (((x) & RL_RDESC_STAT_PROTOID) == \
708                                  RL_PROTOID_TCPIP)
709 #define RL_UDPPKT(x)            (((x) & RL_RDESC_STAT_PROTOID) == \
710                                  RL_PROTOID_UDPIP)
711 
712 /*
713  * Statistics counter structure (8139C+ and 8169 only)
714  */
715 struct rl_stats {
716         uint32_t                rl_tx_pkts_lo;
717         uint32_t                rl_tx_pkts_hi;
718         uint32_t                rl_tx_errs_lo;
719         uint32_t                rl_tx_errs_hi;
720         uint32_t                rl_tx_errs;
721         uint16_t                rl_missed_pkts;
722         uint16_t                rl_rx_framealign_errs;
723         uint32_t                rl_tx_onecoll;
724         uint32_t                rl_tx_multicolls;
725         uint32_t                rl_rx_ucasts_hi;
726         uint32_t                rl_rx_ucasts_lo;
727         uint32_t                rl_rx_bcasts_lo;
728         uint32_t                rl_rx_bcasts_hi;
729         uint32_t                rl_rx_mcasts;
730         uint16_t                rl_tx_aborts;
731         uint16_t                rl_rx_underruns;
732 };
733 
734 /*
735  * Rx/Tx descriptor parameters (8139C+ and 8169 only)
736  *
737  * 8139C+
738  *  Number of descriptors supported : up to 64
739  *  Descriptor alignment : 256 bytes
740  *  Tx buffer : At least 4 bytes in length.
741  *  Rx buffer : At least 8 bytes in length and 8 bytes alignment required.
742  *  
743  * 8169
744  *  Number of descriptors supported : up to 1024
745  *  Descriptor alignment : 256 bytes
746  *  Tx buffer : At least 4 bytes in length.
747  *  Rx buffer : At least 8 bytes in length and 8 bytes alignment required.
748  */
749 #ifndef __NO_STRICT_ALIGNMENT
750 #define RE_FIXUP_RX     1
751 #endif
752 
753 #define RL_8169_TX_DESC_CNT     256
754 #define RL_8169_RX_DESC_CNT     256
755 #define RL_8139_TX_DESC_CNT     64
756 #define RL_8139_RX_DESC_CNT     64
757 #define RL_TX_DESC_CNT          RL_8169_TX_DESC_CNT
758 #define RL_RX_DESC_CNT          RL_8169_RX_DESC_CNT
759 #define RL_NTXSEGS              32
760 
761 #define RL_RING_ALIGN           256
762 #define RL_IFQ_MAXLEN           512
763 #define RL_TX_DESC_NXT(sc,x)    ((x + 1) & ((sc)->rl_ldata.rl_tx_desc_cnt - 1))
764 #define RL_TX_DESC_PRV(sc,x)    ((x - 1) & ((sc)->rl_ldata.rl_tx_desc_cnt - 1))
765 #define RL_RX_DESC_NXT(sc,x)    ((x + 1) & ((sc)->rl_ldata.rl_rx_desc_cnt - 1))
766 #define RL_OWN(x)               (le32toh((x)->rl_cmdstat) & RL_RDESC_STAT_OWN)
767 #define RL_RXBYTES(x)           (le32toh((x)->rl_cmdstat) & sc->rl_rxlenmask)
768 #define RL_PKTSZ(x)             ((x)/* >> 3*/)
769 #ifdef RE_FIXUP_RX
770 #define RE_ETHER_ALIGN  sizeof(uint64_t)
771 #define RE_RX_DESC_BUFLEN       (MCLBYTES - RE_ETHER_ALIGN)
772 #else
773 #define RE_ETHER_ALIGN  0
774 #define RE_RX_DESC_BUFLEN       MCLBYTES
775 #endif
776 
777 #define RL_MSI_MESSAGES 2
778 
779 #define RL_ADDR_LO(y)           ((uint64_t) (y) & 0xFFFFFFFF)
780 #define RL_ADDR_HI(y)           ((uint64_t) (y) >> 32)
781 
782 /*
783  * The number of bits reserved for MSS in RealTek controllers is
784  * 11bits. This limits the maximum interface MTU size in TSO case
785  * as upper stack should not generate TCP segments with MSS greater
786  * than the limit.
787  */
788 #define RL_TSO_MTU              (2047 - ETHER_HDR_LEN - ETHER_CRC_LEN)
789 
790 /* see comment in dev/re/if_re.c */
791 #define RL_JUMBO_FRAMELEN       7440
792 #define RL_JUMBO_MTU            (RL_JUMBO_FRAMELEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
793 #define RL_MAX_FRAMELEN         \
794         (ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
795 
796 struct rl_txdesc {
797         struct mbuf             *tx_m;
798         bus_dmamap_t            tx_dmamap;
799 };
800 
801 struct rl_rxdesc {
802         struct mbuf             *rx_m;
803         bus_dmamap_t            rx_dmamap;
804         bus_size_t              rx_size;
805 };
806 
807 struct rl_list_data {
808         struct rl_txdesc        rl_tx_desc[RL_TX_DESC_CNT];
809         struct rl_rxdesc        rl_rx_desc[RL_RX_DESC_CNT];
810         int                     rl_tx_desc_cnt;
811         int                     rl_rx_desc_cnt;
812         int                     rl_tx_prodidx;
813         int                     rl_rx_prodidx;
814         int                     rl_tx_considx;
815         int                     rl_tx_free;
816         bus_dma_tag_t           rl_tx_mtag;     /* mbuf TX mapping tag */
817         bus_dma_tag_t           rl_rx_mtag;     /* mbuf RX mapping tag */
818         bus_dmamap_t            rl_rx_sparemap;
819         bus_dma_tag_t           rl_stag;        /* stats mapping tag */
820         bus_dmamap_t            rl_smap;        /* stats map */
821         struct rl_stats         *rl_stats;
822         bus_addr_t              rl_stats_addr;
823         bus_dma_tag_t           rl_rx_list_tag;
824         bus_dmamap_t            rl_rx_list_map;
825         struct rl_desc          *rl_rx_list;
826         bus_addr_t              rl_rx_list_addr;
827         bus_dma_tag_t           rl_tx_list_tag;
828         bus_dmamap_t            rl_tx_list_map;
829         struct rl_desc          *rl_tx_list;
830         bus_addr_t              rl_tx_list_addr;
831 };
832 
833 enum rl_twist { DONE, CHK_LINK, FIND_ROW, SET_PARAM, RECHK_LONG, RETUNE };
834 
835 struct rl_softc {
836         struct ifnet            *rl_ifp;        /* interface info */
837         bus_space_handle_t      rl_bhandle;     /* bus space handle */
838         bus_space_tag_t         rl_btag;        /* bus space tag */
839         device_t                rl_dev;
840         struct resource         *rl_res;
841         int                     rl_res_id;
842         int                     rl_res_type;
843         struct resource         *rl_irq[RL_MSI_MESSAGES];
844         void                    *rl_intrhand[RL_MSI_MESSAGES];
845         device_t                rl_miibus;
846         bus_dma_tag_t           rl_parent_tag;
847         uint8_t                 rl_type;
848         int                     rl_eecmd_read;
849         int                     rl_eewidth;
850         uint8_t                 rl_stats_no_timeout;
851         int                     rl_txthresh;
852         struct rl_chain_data    rl_cdata;
853         struct rl_list_data     rl_ldata;
854         struct callout          rl_stat_callout;
855         int                     rl_watchdog_timer;
856         struct mtx              rl_mtx;
857         struct mbuf             *rl_head;
858         struct mbuf             *rl_tail;
859         uint32_t                rl_hwrev;
860         uint32_t                rl_rxlenmask;
861         int                     rl_testmode;
862         int                     rl_if_flags;
863         int                     rl_twister_enable;
864         enum rl_twist           rl_twister;
865         int                     rl_twist_row;
866         int                     rl_twist_col;
867         int                     suspended;      /* 0 = normal  1 = suspended */
868 #ifdef DEVICE_POLLING
869         int                     rxcycles;
870 #endif
871 
872         struct task             rl_txtask;
873         struct task             rl_inttask;
874 
875         int                     rl_txstart;
876         uint32_t                rl_flags;
877 #define RL_FLAG_MSI             0x0001
878 #define RL_FLAG_INVMAR          0x0004
879 #define RL_FLAG_PHYWAKE         0x0008
880 #define RL_FLAG_NOJUMBO         0x0010
881 #define RL_FLAG_PAR             0x0020
882 #define RL_FLAG_DESCV2          0x0040
883 #define RL_FLAG_MACSTAT         0x0080
884 #define RL_FLAG_LINK            0x8000
885 };
886 
887 #define RL_LOCK(_sc)            mtx_lock(&(_sc)->rl_mtx)
888 #define RL_UNLOCK(_sc)          mtx_unlock(&(_sc)->rl_mtx)
889 #define RL_LOCK_ASSERT(_sc)     mtx_assert(&(_sc)->rl_mtx, MA_OWNED)
890 
891 /*
892  * register space access macros
893  */
894 #define CSR_WRITE_STREAM_4(sc, reg, val)        \
895         bus_space_write_stream_4(sc->rl_btag, sc->rl_bhandle, reg, val)
896 #define CSR_WRITE_4(sc, reg, val)       \
897         bus_space_write_4(sc->rl_btag, sc->rl_bhandle, reg, val)
898 #define CSR_WRITE_2(sc, reg, val)       \
899         bus_space_write_2(sc->rl_btag, sc->rl_bhandle, reg, val)
900 #define CSR_WRITE_1(sc, reg, val)       \
901         bus_space_write_1(sc->rl_btag, sc->rl_bhandle, reg, val)
902 
903 #define CSR_READ_4(sc, reg)             \
904         bus_space_read_4(sc->rl_btag, sc->rl_bhandle, reg)
905 #define CSR_READ_2(sc, reg)             \
906         bus_space_read_2(sc->rl_btag, sc->rl_bhandle, reg)
907 #define CSR_READ_1(sc, reg)             \
908         bus_space_read_1(sc->rl_btag, sc->rl_bhandle, reg)
909 
910 #define CSR_SETBIT_1(sc, offset, val)           \
911         CSR_WRITE_1(sc, offset, CSR_READ_1(sc, offset) | (val))
912 
913 #define CSR_CLRBIT_1(sc, offset, val)           \
914         CSR_WRITE_1(sc, offset, CSR_READ_1(sc, offset) & ~(val))
915 
916 #define CSR_SETBIT_2(sc, offset, val)           \
917         CSR_WRITE_2(sc, offset, CSR_READ_2(sc, offset) | (val))
918 
919 #define CSR_CLRBIT_2(sc, offset, val)           \
920         CSR_WRITE_2(sc, offset, CSR_READ_2(sc, offset) & ~(val))
921 
922 #define CSR_SETBIT_4(sc, offset, val)           \
923         CSR_WRITE_4(sc, offset, CSR_READ_4(sc, offset) | (val))
924 
925 #define CSR_CLRBIT_4(sc, offset, val)           \
926         CSR_WRITE_4(sc, offset, CSR_READ_4(sc, offset) & ~(val))
927 
928 #define RL_TIMEOUT              1000
929 
930 /*
931  * General constants that are fun to know.
932  *
933  * RealTek PCI vendor ID
934  */
935 #define RT_VENDORID                             0x10EC
936 
937 /*
938  * RealTek chip device IDs.
939  */
940 #define RT_DEVICEID_8139D                       0x8039
941 #define RT_DEVICEID_8129                        0x8129
942 #define RT_DEVICEID_8101E                       0x8136
943 #define RT_DEVICEID_8138                        0x8138
944 #define RT_DEVICEID_8139                        0x8139
945 #define RT_DEVICEID_8169SC                      0x8167
946 #define RT_DEVICEID_8168                        0x8168
947 #define RT_DEVICEID_8169                        0x8169
948 #define RT_DEVICEID_8100                        0x8100
949 
950 #define RT_REVID_8139CPLUS                      0x20
951 
952 /*
953  * Accton PCI vendor ID
954  */
955 #define ACCTON_VENDORID                         0x1113
956 
957 /*
958  * Accton MPX 5030/5038 device ID.
959  */
960 #define ACCTON_DEVICEID_5030                    0x1211
961 
962 /*
963  * Nortel PCI vendor ID
964  */
965 #define NORTEL_VENDORID                         0x126C
966 
967 /*
968  * Delta Electronics Vendor ID.
969  */
970 #define DELTA_VENDORID                          0x1500
971 
972 /*
973  * Delta device IDs.
974  */
975 #define DELTA_DEVICEID_8139                     0x1360
976 
977 /*