1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* drivers/atm/firestream.h - FireStream 155 (MB86697) and
3 * FireStream 50 (MB86695) device driver
6 /* Written & (C) 2000 by R.E.Wolff@BitWizard.nl
7 * Copied snippets from zatm.c by Werner Almesberger, EPFL LRC/ICA
8 * and ambassador.c Copyright (C) 1995-1999 Madge Networks Ltd
15 /***********************************************************************
16 * first the defines for the chip. *
17 ***********************************************************************/
20 /********************* General chip parameters. ************************/
22 #define FS_NR_FREE_POOLS 8
23 #define FS_NR_RX_QUEUES 4
26 /********************* queues and queue access macros ******************/
36 /* A freepool entry. */
43 /* The hardware doesn't look at this, but we need the SKB somewhere... */
50 #define STATUS_CODE(qe) ((qe->cmd >> 22) & 0x3f)
53 /* OFFSETS against the base of a QUEUE... */
58 #define QCNF 0x10 /* Only for Release queues! */
59 /* Not for the transmit pending queue. */
62 /* OFFSETS against the base of a FREE POOL... */
69 #define Q_SA(b) (b + QSA )
70 #define Q_EA(b) (b + QEA )
71 #define Q_RP(b) (b + QRP )
72 #define Q_WP(b) (b + QWP )
73 #define Q_CNF(b) (b + QCNF)
75 #define FP_CNF(b) (b + FPCNF)
76 #define FP_SA(b) (b + FPSA)
77 #define FP_EA(b) (b + FPEA)
78 #define FP_CNT(b) (b + FPCNT)
79 #define FP_CTU(b) (b + FPCTU)
81 /* bits in a queue register. */
85 #define Q_ADDR_MASK 0xfffffff0
87 /* bits in a FreePool config register */
88 #define RBFP_RBS (0x1 << 16)
89 #define RBFP_RBSVAL (0x1 << 15)
90 #define RBFP_CME (0x1 << 12)
91 #define RBFP_DLP (0x1 << 11)
92 #define RBFP_BFPWT (0x1 << 0)
97 /* FireStream commands. */
98 #define QE_CMD_NULL (0x00 << 22)
99 #define QE_CMD_REG_RD (0x01 << 22)
100 #define QE_CMD_REG_RDM (0x02 << 22)
101 #define QE_CMD_REG_WR (0x03 << 22)
102 #define QE_CMD_REG_WRM (0x04 << 22)
103 #define QE_CMD_CONFIG_TX (0x05 << 22)
104 #define QE_CMD_CONFIG_RX (0x06 << 22)
105 #define QE_CMD_PRP_RD (0x07 << 22)
106 #define QE_CMD_PRP_RDM (0x2a << 22)
107 #define QE_CMD_PRP_WR (0x09 << 22)
108 #define QE_CMD_PRP_WRM (0x2b << 22)
109 #define QE_CMD_RX_EN (0x0a << 22)
110 #define QE_CMD_RX_PURGE (0x0b << 22)
111 #define QE_CMD_RX_PURGE_INH (0x0c << 22)
112 #define QE_CMD_TX_EN (0x0d << 22)
113 #define QE_CMD_TX_PURGE (0x0e << 22)
114 #define QE_CMD_TX_PURGE_INH (0x0f << 22)
115 #define QE_CMD_RST_CG (0x10 << 22)
116 #define QE_CMD_SET_CG (0x11 << 22)
117 #define QE_CMD_RST_CLP (0x12 << 22)
118 #define QE_CMD_SET_CLP (0x13 << 22)
119 #define QE_CMD_OVERRIDE (0x14 << 22)
120 #define QE_CMD_ADD_BFP (0x15 << 22)
121 #define QE_CMD_DUMP_TX (0x16 << 22)
122 #define QE_CMD_DUMP_RX (0x17 << 22)
123 #define QE_CMD_LRAM_RD (0x18 << 22)
124 #define QE_CMD_LRAM_RDM (0x28 << 22)
125 #define QE_CMD_LRAM_WR (0x19 << 22)
126 #define QE_CMD_LRAM_WRM (0x29 << 22)
127 #define QE_CMD_LRAM_BSET (0x1a << 22)
128 #define QE_CMD_LRAM_BCLR (0x1b << 22)
129 #define QE_CMD_CONFIG_SEGM (0x1c << 22)
130 #define QE_CMD_READ_SEGM (0x1d << 22)
131 #define QE_CMD_CONFIG_ROUT (0x1e << 22)
132 #define QE_CMD_READ_ROUT (0x1f << 22)
133 #define QE_CMD_CONFIG_TM (0x20 << 22)
134 #define QE_CMD_READ_TM (0x21 << 22)
135 #define QE_CMD_CONFIG_TXBM (0x22 << 22)
136 #define QE_CMD_READ_TXBM (0x23 << 22)
137 #define QE_CMD_CONFIG_RXBM (0x24 << 22)
138 #define QE_CMD_READ_RXBM (0x25 << 22)
139 #define QE_CMD_CONFIG_REAS (0x26 << 22)
140 #define QE_CMD_READ_REAS (0x27 << 22)
142 #define QE_TRANSMIT_DE (0x0 << 30)
143 #define QE_CMD_LINKED (0x1 << 30)
144 #define QE_CMD_IMM (0x2 << 30)
145 #define QE_CMD_IMM_INQ (0x3 << 30)
147 #define TD_EPI (0x1 << 27)
148 #define TD_COMMAND (0x1 << 28)
150 #define TD_DATA (0x0 << 29)
151 #define TD_RM_CELL (0x1 << 29)
152 #define TD_OAM_CELL (0x2 << 29)
153 #define TD_OAM_CELL_SEGMENT (0x3 << 29)
155 #define TD_BPI (0x1 << 20)
157 #define FP_FLAGS_EPI (0x1 << 27)
160 #define TX_PQ(i) (0x00 + (i) * 0x10)
161 #define TXB_RQ (0x20)
163 #define RXB_FP(i) (0x90 + (i) * 0x14)
164 #define RXB_RQ(i) (0x134 + (i) * 0x14)
170 /* Phew. You don't want to know how many revisions these simple queue
171 * address macros went through before I got them nice and compact as
172 * they are now. -- REW
176 /* And now for something completely different:
177 * The rest of the registers... */
186 #define SARMODE0 0x5c
188 #define SARMODE0_TXVCS_0 (0x0 << 0)
189 #define SARMODE0_TXVCS_1k (0x1 << 0)
190 #define SARMODE0_TXVCS_2k (0x2 << 0)
191 #define SARMODE0_TXVCS_4k (0x3 << 0)
192 #define SARMODE0_TXVCS_8k (0x4 << 0)
193 #define SARMODE0_TXVCS_16k (0x5 << 0)
194 #define SARMODE0_TXVCS_32k (0x6 << 0)
195 #define SARMODE0_TXVCS_64k (0x7 << 0)
196 #define SARMODE0_TXVCS_32 (0x8 << 0)
198 #define SARMODE0_ABRVCS_0 (0x0 << 4)
199 #define SARMODE0_ABRVCS_512 (0x1 << 4)
200 #define SARMODE0_ABRVCS_1k (0x2 << 4)
201 #define SARMODE0_ABRVCS_2k (0x3 << 4)
202 #define SARMODE0_ABRVCS_4k (0x4 << 4)
203 #define SARMODE0_ABRVCS_8k (0x5 << 4)
204 #define SARMODE0_ABRVCS_16k (0x6 << 4)
205 #define SARMODE0_ABRVCS_32k (0x7 << 4)
206 #define SARMODE0_ABRVCS_32 (0x9 << 4) /* The others are "8", this one really has to
207 be 9. Tell me you don't believe me. -- REW */
209 #define SARMODE0_RXVCS_0 (0x0 << 8)
210 #define SARMODE0_RXVCS_1k (0x1 << 8)
211 #define SARMODE0_RXVCS_2k (0x2 << 8)
212 #define SARMODE0_RXVCS_4k (0x3 << 8)
213 #define SARMODE0_RXVCS_8k (0x4 << 8)
214 #define SARMODE0_RXVCS_16k (0x5 << 8)
215 #define SARMODE0_RXVCS_32k (0x6 << 8)
216 #define SARMODE0_RXVCS_64k (0x7 << 8)
217 #define SARMODE0_RXVCS_32 (0x8 << 8)
219 #define SARMODE0_CALSUP_1 (0x0 << 12)
220 #define SARMODE0_CALSUP_2 (0x1 << 12)
221 #define SARMODE0_CALSUP_3 (0x2 << 12)
222 #define SARMODE0_CALSUP_4 (0x3 << 12)
224 #define SARMODE0_PRPWT_FS50_0 (0x0 << 14)
225 #define SARMODE0_PRPWT_FS50_2 (0x1 << 14)
226 #define SARMODE0_PRPWT_FS50_5 (0x2 << 14)
227 #define SARMODE0_PRPWT_FS50_11 (0x3 << 14)
229 #define SARMODE0_PRPWT_FS155_0 (0x0 << 14)
230 #define SARMODE0_PRPWT_FS155_1 (0x1 << 14)
231 #define SARMODE0_PRPWT_FS155_2 (0x2 << 14)
232 #define SARMODE0_PRPWT_FS155_3 (0x3 << 14)
234 #define SARMODE0_SRTS0 (0x1 << 23)
235 #define SARMODE0_SRTS1 (0x1 << 24)
237 #define SARMODE0_RUN (0x1 << 25)
239 #define SARMODE0_UNLOCK (0x1 << 26)
240 #define SARMODE0_CWRE (0x1 << 27)
243 #define SARMODE0_INTMODE_READCLEAR (0x0 << 28)
244 #define SARMODE0_INTMODE_READNOCLEAR (0x1 << 28)
245 #define SARMODE0_INTMODE_READNOCLEARINHIBIT (0x2 << 28)
246 #define SARMODE0_INTMODE_READCLEARINHIBIT (0x3 << 28) /* Tell me you don't believe me. */
248 #define SARMODE0_GINT (0x1 << 30)
249 #define SARMODE0_SHADEN (0x1 << 31)
252 #define SARMODE1 0x60
255 #define SARMODE1_TRTL_SHIFT 0 /* Program to 0 */
256 #define SARMODE1_RRTL_SHIFT 4 /* Program to 0 */
258 #define SARMODE1_TAGM (0x1 << 8) /* Program to 0 */
260 #define SARMODE1_HECM0 (0x1 << 9)
261 #define SARMODE1_HECM1 (0x1 << 10)
262 #define SARMODE1_HECM2 (0x1 << 11)
264 #define SARMODE1_GFCE (0x1 << 14)
265 #define SARMODE1_GFCR (0x1 << 15)
266 #define SARMODE1_PMS (0x1 << 18)
267 #define SARMODE1_GPRI (0x1 << 19)
268 #define SARMODE1_GPAS (0x1 << 20)
269 #define SARMODE1_GVAS (0x1 << 21)
270 #define SARMODE1_GNAM (0x1 << 22)
271 #define SARMODE1_GPLEN (0x1 << 23)
272 #define SARMODE1_DUMPE (0x1 << 24)
273 #define SARMODE1_OAMCRC (0x1 << 25)
274 #define SARMODE1_DCOAM (0x1 << 26)
275 #define SARMODE1_DCRM (0x1 << 27)
276 #define SARMODE1_TSTLP (0x1 << 28)
277 #define SARMODE1_DEFHEC (0x1 << 29)
284 #define ISR_LPCO (0x1 << 0)
285 #define ISR_DPCO (0x1 << 1)
286 #define ISR_RBRQ0_W (0x1 << 2)
287 #define ISR_RBRQ1_W (0x1 << 3)
288 #define ISR_RBRQ2_W (0x1 << 4)
289 #define ISR_RBRQ3_W (0x1 << 5)
290 #define ISR_RBRQ0_NF (0x1 << 6)
291 #define ISR_RBRQ1_NF (0x1 << 7)
292 #define ISR_RBRQ2_NF (0x1 << 8)
293 #define ISR_RBRQ3_NF (0x1 << 9)
294 #define ISR_BFP_SC (0x1 << 10)
295 #define ISR_INIT (0x1 << 11)
296 #define ISR_INIT_ERR (0x1 << 12) /* Documented as "reserved" */
297 #define ISR_USCEO (0x1 << 13)
298 #define ISR_UPEC0 (0x1 << 14)
299 #define ISR_VPFCO (0x1 << 15)
300 #define ISR_CRCCO (0x1 << 16)
301 #define ISR_HECO (0x1 << 17)
302 #define ISR_TBRQ_W (0x1 << 18)
303 #define ISR_TBRQ_NF (0x1 << 19)
304 #define ISR_CTPQ_E (0x1 << 20)
305 #define ISR_GFC_C0 (0x1 << 21)
306 #define ISR_PCI_FTL (0x1 << 22)
307 #define ISR_CSQ_W (0x1 << 23)
308 #define ISR_CSQ_NF (0x1 << 24)
309 #define ISR_EXT_INT (0x1 << 25)
310 #define ISR_RXDMA_S (0x1 << 26)
317 #define CALPRESCALE 0x7c
320 #define CELLOSCONF 0x84
321 #define CELLOSCONF_COTS (0x1 << 28)
322 #define CELLOSCONF_CEN (0x1 << 27)
323 #define CELLOSCONF_SC8 (0x3 << 24)
324 #define CELLOSCONF_SC4 (0x2 << 24)
325 #define CELLOSCONF_SC2 (0x1 << 24)
326 #define CELLOSCONF_SC1 (0x0 << 24)
328 #define CELLOSCONF_COBS (0x1 << 16)
329 #define CELLOSCONF_COPK (0x1 << 8)
330 #define CELLOSCONF_COST (0x1 << 0)
334 #define RAS0_DCD_XHLT (0x1 << 31)
336 #define RAS0_VPSEL (0x1 << 16)
337 #define RAS0_VCSEL (0x1 << 0)
340 #define RAS1_UTREG (0x1 << 5)
344 #define DMAMR_TX_MODE_FULL (0x0 << 0)
345 #define DMAMR_TX_MODE_PART (0x1 << 0)
346 #define DMAMR_TX_MODE_NONE (0x2 << 0) /* And 3 */
352 #define RAS2_NNI (0x1 << 0)
353 #define RAS2_USEL (0x1 << 1)
354 #define RAS2_UBS (0x1 << 2)
358 struct fs_transmit_config {
366 #define TC_FLAGS_AAL5 (0x0 << 29)
367 #define TC_FLAGS_TRANSPARENT_PAYLOAD (0x1 << 29)
368 #define TC_FLAGS_TRANSPARENT_CELL (0x2 << 29)
369 #define TC_FLAGS_STREAMING (0x1 << 28)
370 #define TC_FLAGS_PACKET (0x0)
371 #define TC_FLAGS_TYPE_ABR (0x0 << 22)
372 #define TC_FLAGS_TYPE_CBR (0x1 << 22)
373 #define TC_FLAGS_TYPE_VBR (0x2 << 22)
374 #define TC_FLAGS_TYPE_UBR (0x3 << 22)
375 #define TC_FLAGS_CAL0 (0x0 << 20)
376 #define TC_FLAGS_CAL1 (0x1 << 20)
377 #define TC_FLAGS_CAL2 (0x2 << 20)
378 #define TC_FLAGS_CAL3 (0x3 << 20)
381 #define RC_FLAGS_NAM (0x1 << 13)
382 #define RC_FLAGS_RXBM_PSB (0x0 << 14)
383 #define RC_FLAGS_RXBM_CIF (0x1 << 14)
384 #define RC_FLAGS_RXBM_PMB (0x2 << 14)
385 #define RC_FLAGS_RXBM_STR (0x4 << 14)
386 #define RC_FLAGS_RXBM_SAF (0x6 << 14)
387 #define RC_FLAGS_RXBM_POS (0x6 << 14)
388 #define RC_FLAGS_BFPS (0x1 << 17)
390 #define RC_FLAGS_BFPS_BFP (0x1 << 17)
392 #define RC_FLAGS_BFPS_BFP0 (0x0 << 17)
393 #define RC_FLAGS_BFPS_BFP1 (0x1 << 17)
394 #define RC_FLAGS_BFPS_BFP2 (0x2 << 17)
395 #define RC_FLAGS_BFPS_BFP3 (0x3 << 17)
396 #define RC_FLAGS_BFPS_BFP4 (0x4 << 17)
397 #define RC_FLAGS_BFPS_BFP5 (0x5 << 17)
398 #define RC_FLAGS_BFPS_BFP6 (0x6 << 17)
399 #define RC_FLAGS_BFPS_BFP7 (0x7 << 17)
400 #define RC_FLAGS_BFPS_BFP01 (0x8 << 17)
401 #define RC_FLAGS_BFPS_BFP23 (0x9 << 17)
402 #define RC_FLAGS_BFPS_BFP45 (0xa << 17)
403 #define RC_FLAGS_BFPS_BFP67 (0xb << 17)
404 #define RC_FLAGS_BFPS_BFP07 (0xc << 17)
405 #define RC_FLAGS_BFPS_BFP27 (0xd << 17)
406 #define RC_FLAGS_BFPS_BFP47 (0xe << 17)
408 #define RC_FLAGS_BFPP (0x1 << 21)
409 #define RC_FLAGS_TEVC (0x1 << 22)
410 #define RC_FLAGS_TEP (0x1 << 23)
411 #define RC_FLAGS_AAL5 (0x0 << 24)
412 #define RC_FLAGS_TRANSP (0x1 << 24)
413 #define RC_FLAGS_TRANSC (0x2 << 24)
414 #define RC_FLAGS_ML (0x1 << 27)
415 #define RC_FLAGS_TRBRM (0x1 << 28)
416 #define RC_FLAGS_PRI (0x1 << 29)
417 #define RC_FLAGS_HOAM (0x1 << 30)
418 #define RC_FLAGS_CRC10 (0x1 << 31)
426 /************************************************************************
427 * Then the datastructures that the DRIVER uses. *
428 ************************************************************************/
430 #define TXQ_NENTRIES 32
431 #define RXRQ_NENTRIES 1024
436 wait_queue_head_t close_wait;
437 struct sk_buff *last_skb;
442 struct FS_QENTRY *sa, *ea;
455 struct fs_dev *next; /* other FS devices */
458 unsigned char irq; /* IRQ */
459 struct pci_dev *pci_dev; /* PCI stuff */
460 struct atm_dev *atm_dev;
461 struct timer_list timer;
463 unsigned long hw_base; /* mem base address */
464 void __iomem *base; /* Mapping of base address */
466 unsigned long channel_mask;
468 struct queue hp_txq, lp_txq, tx_relq, st_q;
469 struct freepool rx_fp[FS_NR_FREE_POOLS];
470 struct queue rx_rq[FS_NR_RX_QUEUES];
473 struct atm_vcc **atm_vccs;
481 /* Number of channesl that the FS50 supports. */
482 #define FS50_CHANNEL_BITS 5
483 #define FS50_NR_CHANNELS (1 << FS50_CHANNEL_BITS)
486 #define FS_DEV(atm_dev) ((struct fs_dev *) (atm_dev)->dev_data)
487 #define FS_VCC(atm_vcc) ((struct fs_vcc *) (atm_vcc)->dev_data)
493 #define IS_FS50(dev) (dev->flags & FS_IS50)
494 #define IS_FS155(dev) (dev->flags & FS_IS155)
496 /* Within limits this is user-configurable. */
497 /* Note: Currently the sum (10 -> 1k channels) is hardcoded in the driver. */
498 #define FS155_VPI_BITS 4
499 #define FS155_VCI_BITS 6
501 #define FS155_CHANNEL_BITS (FS155_VPI_BITS + FS155_VCI_BITS)
502 #define FS155_NR_CHANNELS (1 << FS155_CHANNEL_BITS)