xref: /linux/drivers/net/ethernet/cavium/liquidio/octeon_config.h (revision 3eb66e91a25497065c5322b1268cbc3953642227)
1 /**********************************************************************
2  * Author: Cavium, Inc.
3  *
4  * Contact: support@cavium.com
5  *          Please include "LiquidIO" in the subject.
6  *
7  * Copyright (c) 2003-2016 Cavium, Inc.
8  *
9  * This file is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License, Version 2, as
11  * published by the Free Software Foundation.
12  *
13  * This file is distributed in the hope that it will be useful, but
14  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
15  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
16  * NONINFRINGEMENT.  See the GNU General Public License for more details.
17  ***********************************************************************/
18 /*! \file  octeon_config.h
19  *  \brief Host Driver: Configuration data structures for the host driver.
20  */
21 
22 #ifndef __OCTEON_CONFIG_H__
23 #define __OCTEON_CONFIG_H__
24 
25 /*--------------------------CONFIG VALUES------------------------*/
26 
27 /* The following macros affect the way the driver data structures
28  * are generated for Octeon devices.
29  * They can be modified.
30  */
31 
32 /* Maximum octeon devices defined as MAX_OCTEON_NICIF to support
33  * multiple(<= MAX_OCTEON_NICIF) Miniports
34  */
35 #define   MAX_OCTEON_NICIF             128
36 #define   MAX_OCTEON_DEVICES           MAX_OCTEON_NICIF
37 #define   MAX_OCTEON_LINKS	       MAX_OCTEON_NICIF
38 #define   MAX_OCTEON_MULTICAST_ADDR    32
39 
40 #define   MAX_OCTEON_FILL_COUNT        8
41 
42 /* CN6xxx IQ configuration macros */
43 #define   CN6XXX_MAX_INPUT_QUEUES      32
44 #define   CN6XXX_MAX_IQ_DESCRIPTORS    2048
45 #define   CN6XXX_DB_MIN                1
46 #define   CN6XXX_DB_MAX                8
47 #define   CN6XXX_DB_TIMEOUT            1
48 
49 /* CN6xxx OQ configuration macros */
50 #define   CN6XXX_MAX_OUTPUT_QUEUES     32
51 #define   CN6XXX_MAX_OQ_DESCRIPTORS    2048
52 #define   CN6XXX_OQ_BUF_SIZE           1664
53 #define   CN6XXX_OQ_PKTSPER_INTR       ((CN6XXX_MAX_OQ_DESCRIPTORS < 512) ? \
54 					(CN6XXX_MAX_OQ_DESCRIPTORS / 4) : 128)
55 #define   CN6XXX_OQ_REFIL_THRESHOLD    ((CN6XXX_MAX_OQ_DESCRIPTORS < 512) ? \
56 					(CN6XXX_MAX_OQ_DESCRIPTORS / 4) : 128)
57 
58 #define   CN6XXX_OQ_INTR_PKT           64
59 #define   CN6XXX_OQ_INTR_TIME          100
60 #define   DEFAULT_NUM_NIC_PORTS_66XX   2
61 #define   DEFAULT_NUM_NIC_PORTS_68XX   4
62 #define   DEFAULT_NUM_NIC_PORTS_68XX_210NV  2
63 
64 /* CN23xx  IQ configuration macros */
65 #define   CN23XX_MAX_VFS_PER_PF_PASS_1_0 8
66 #define   CN23XX_MAX_VFS_PER_PF_PASS_1_1 31
67 #define   CN23XX_MAX_VFS_PER_PF          63
68 #define   CN23XX_MAX_RINGS_PER_VF        8
69 
70 #define   CN23XX_MAX_RINGS_PER_PF_PASS_1_0 12
71 #define   CN23XX_MAX_RINGS_PER_PF_PASS_1_1 32
72 #define   CN23XX_MAX_RINGS_PER_PF          64
73 #define   CN23XX_MAX_RINGS_PER_VF          8
74 
75 #define   CN23XX_MAX_INPUT_QUEUES	CN23XX_MAX_RINGS_PER_PF
76 #define   CN23XX_MAX_IQ_DESCRIPTORS	2048
77 #define   CN23XX_DEFAULT_IQ_DESCRIPTORS	512
78 #define   CN23XX_MIN_IQ_DESCRIPTORS	128
79 #define   CN23XX_DB_MIN                 1
80 #define   CN23XX_DB_MAX                 8
81 #define   CN23XX_DB_TIMEOUT             1
82 
83 #define   CN23XX_MAX_OUTPUT_QUEUES	CN23XX_MAX_RINGS_PER_PF
84 #define   CN23XX_MAX_OQ_DESCRIPTORS	2048
85 #define   CN23XX_DEFAULT_OQ_DESCRIPTORS	512
86 #define   CN23XX_MIN_OQ_DESCRIPTORS	128
87 #define   CN23XX_OQ_BUF_SIZE		1664
88 #define   CN23XX_OQ_PKTSPER_INTR	128
89 /*#define CAVIUM_ONLY_CN23XX_RX_PERF*/
90 #define   CN23XX_OQ_REFIL_THRESHOLD	16
91 
92 #define   CN23XX_OQ_INTR_PKT		64
93 #define   CN23XX_OQ_INTR_TIME		100
94 #define   DEFAULT_NUM_NIC_PORTS_23XX	1
95 
96 #define   CN23XX_CFG_IO_QUEUES		CN23XX_MAX_RINGS_PER_PF
97 /* PEMs count */
98 #define   CN23XX_MAX_MACS		4
99 
100 #define   CN23XX_DEF_IQ_INTR_THRESHOLD	32
101 #define   CN23XX_DEF_IQ_INTR_BYTE_THRESHOLD   (64 * 1024)
102 /* common OCTEON configuration macros */
103 #define   CN6XXX_CFG_IO_QUEUES         32
104 #define   OCTEON_32BYTE_INSTR          32
105 #define   OCTEON_64BYTE_INSTR          64
106 #define   OCTEON_MAX_BASE_IOQ          4
107 
108 #define   OCTEON_DMA_INTR_PKT          64
109 #define   OCTEON_DMA_INTR_TIME         1000
110 
111 #define MAX_TXQS_PER_INTF  8
112 #define MAX_RXQS_PER_INTF  8
113 #define DEF_TXQS_PER_INTF  4
114 #define DEF_RXQS_PER_INTF  4
115 
116 #define INVALID_IOQ_NO          0xff
117 
118 #define   DEFAULT_POW_GRP       0
119 
120 /* Macros to get octeon config params */
121 #define CFG_GET_IQ_CFG(cfg)                      ((cfg)->iq)
122 #define CFG_GET_IQ_MAX_Q(cfg)                    ((cfg)->iq.max_iqs)
123 #define CFG_GET_IQ_PENDING_LIST_SIZE(cfg)        ((cfg)->iq.pending_list_size)
124 #define CFG_GET_IQ_INSTR_TYPE(cfg)               ((cfg)->iq.instr_type)
125 #define CFG_GET_IQ_DB_MIN(cfg)                   ((cfg)->iq.db_min)
126 #define CFG_GET_IQ_DB_TIMEOUT(cfg)               ((cfg)->iq.db_timeout)
127 
128 #define CFG_GET_IQ_INTR_PKT(cfg)                 ((cfg)->iq.iq_intr_pkt)
129 #define CFG_SET_IQ_INTR_PKT(cfg, val)            (cfg)->iq.iq_intr_pkt = val
130 
131 #define CFG_GET_OQ_MAX_Q(cfg)                    ((cfg)->oq.max_oqs)
132 #define CFG_GET_OQ_PKTS_PER_INTR(cfg)            ((cfg)->oq.pkts_per_intr)
133 #define CFG_GET_OQ_REFILL_THRESHOLD(cfg)         ((cfg)->oq.refill_threshold)
134 #define CFG_GET_OQ_INTR_PKT(cfg)                 ((cfg)->oq.oq_intr_pkt)
135 #define CFG_GET_OQ_INTR_TIME(cfg)                ((cfg)->oq.oq_intr_time)
136 #define CFG_SET_OQ_INTR_PKT(cfg, val)            (cfg)->oq.oq_intr_pkt = val
137 #define CFG_SET_OQ_INTR_TIME(cfg, val)           (cfg)->oq.oq_intr_time = val
138 
139 #define CFG_GET_DMA_INTR_PKT(cfg)                ((cfg)->dma.dma_intr_pkt)
140 #define CFG_GET_DMA_INTR_TIME(cfg)               ((cfg)->dma.dma_intr_time)
141 #define CFG_GET_NUM_NIC_PORTS(cfg)               ((cfg)->num_nic_ports)
142 #define CFG_GET_NUM_DEF_TX_DESCS(cfg)            ((cfg)->num_def_tx_descs)
143 #define CFG_GET_NUM_DEF_RX_DESCS(cfg)            ((cfg)->num_def_rx_descs)
144 #define CFG_GET_DEF_RX_BUF_SIZE(cfg)             ((cfg)->def_rx_buf_size)
145 
146 #define CFG_GET_MAX_TXQS_NIC_IF(cfg, idx) \
147 				((cfg)->nic_if_cfg[idx].max_txqs)
148 #define CFG_GET_NUM_TXQS_NIC_IF(cfg, idx) \
149 				((cfg)->nic_if_cfg[idx].num_txqs)
150 #define CFG_GET_MAX_RXQS_NIC_IF(cfg, idx) \
151 				((cfg)->nic_if_cfg[idx].max_rxqs)
152 #define CFG_GET_NUM_RXQS_NIC_IF(cfg, idx) \
153 				((cfg)->nic_if_cfg[idx].num_rxqs)
154 #define CFG_GET_NUM_RX_DESCS_NIC_IF(cfg, idx) \
155 				((cfg)->nic_if_cfg[idx].num_rx_descs)
156 #define CFG_GET_NUM_TX_DESCS_NIC_IF(cfg, idx) \
157 				((cfg)->nic_if_cfg[idx].num_tx_descs)
158 #define CFG_GET_NUM_RX_BUF_SIZE_NIC_IF(cfg, idx) \
159 				((cfg)->nic_if_cfg[idx].rx_buf_size)
160 #define CFG_GET_BASE_QUE_NIC_IF(cfg, idx) \
161 				((cfg)->nic_if_cfg[idx].base_queue)
162 #define CFG_GET_GMXID_NIC_IF(cfg, idx) \
163 				((cfg)->nic_if_cfg[idx].gmx_port_id)
164 
165 #define CFG_GET_CTRL_Q_GRP(cfg)                  ((cfg)->misc.ctrlq_grp)
166 #define CFG_GET_HOST_LINK_QUERY_INTERVAL(cfg) \
167 				((cfg)->misc.host_link_query_interval)
168 #define CFG_GET_OCT_LINK_QUERY_INTERVAL(cfg) \
169 				((cfg)->misc.oct_link_query_interval)
170 #define CFG_GET_IS_SLI_BP_ON(cfg)                ((cfg)->misc.enable_sli_oq_bp)
171 
172 #define CFG_SET_NUM_RX_DESCS_NIC_IF(cfg, idx, value) \
173 				((cfg)->nic_if_cfg[idx].num_rx_descs = value)
174 #define CFG_SET_NUM_TX_DESCS_NIC_IF(cfg, idx, value) \
175 				((cfg)->nic_if_cfg[idx].num_tx_descs = value)
176 
177 /* Max IOQs per OCTEON Link */
178 #define MAX_IOQS_PER_NICIF              64
179 
180 enum lio_card_type {
181 	LIO_210SV = 0, /* Two port, 66xx */
182 	LIO_210NV,     /* Two port, 68xx */
183 	LIO_410NV,     /* Four port, 68xx */
184 	LIO_23XX       /* 23xx */
185 };
186 
187 #define LIO_210SV_NAME "210sv"
188 #define LIO_210NV_NAME "210nv"
189 #define LIO_410NV_NAME "410nv"
190 #define LIO_23XX_NAME  "23xx"
191 
192 /** Structure to define the configuration attributes for each Input queue.
193  *  Applicable to all Octeon processors
194  **/
195 struct octeon_iq_config {
196 #ifdef __BIG_ENDIAN_BITFIELD
197 	u64 reserved:16;
198 
199 	/** Tx interrupt packets. Applicable to 23xx only */
200 	u64 iq_intr_pkt:16;
201 
202 	/** Minimum ticks to wait before checking for pending instructions. */
203 	u64 db_timeout:16;
204 
205 	/** Minimum number of commands pending to be posted to Octeon
206 	 *  before driver hits the Input queue doorbell.
207 	 */
208 	u64 db_min:8;
209 
210 	/** Command size - 32 or 64 bytes */
211 	u64 instr_type:32;
212 
213 	/** Pending list size (usually set to the sum of the size of all Input
214 	 *  queues)
215 	 */
216 	u64 pending_list_size:32;
217 
218 	/* Max number of IQs available */
219 	u64 max_iqs:8;
220 #else
221 	/* Max number of IQs available */
222 	u64 max_iqs:8;
223 
224 	/** Pending list size (usually set to the sum of the size of all Input
225 	 *  queues)
226 	 */
227 	u64 pending_list_size:32;
228 
229 	/** Command size - 32 or 64 bytes */
230 	u64 instr_type:32;
231 
232 	/** Minimum number of commands pending to be posted to Octeon
233 	 *  before driver hits the Input queue doorbell.
234 	 */
235 	u64 db_min:8;
236 
237 	/** Minimum ticks to wait before checking for pending instructions. */
238 	u64 db_timeout:16;
239 
240 	/** Tx interrupt packets. Applicable to 23xx only */
241 	u64 iq_intr_pkt:16;
242 
243 	u64 reserved:16;
244 #endif
245 };
246 
247 /** Structure to define the configuration attributes for each Output queue.
248  *  Applicable to all Octeon processors
249  **/
250 struct octeon_oq_config {
251 #ifdef __BIG_ENDIAN_BITFIELD
252 	u64 reserved:16;
253 
254 	u64 pkts_per_intr:16;
255 
256 	/** Interrupt Coalescing (Time Interval). Octeon will interrupt the
257 	 *  host if atleast one packet was sent in the time interval specified
258 	 *  by this field. The driver uses time interval interrupt coalescing
259 	 *  by default. The time is specified in microseconds.
260 	 */
261 	u64 oq_intr_time:16;
262 
263 	/** Interrupt Coalescing (Packet Count). Octeon will interrupt the host
264 	 *  only if it sent as many packets as specified by this field.
265 	 *  The driver
266 	 *  usually does not use packet count interrupt coalescing.
267 	 */
268 	u64 oq_intr_pkt:16;
269 
270 	/** The number of buffers that were consumed during packet processing by
271 	 *   the driver on this Output queue before the driver attempts to
272 	 *   replenish
273 	 *   the descriptor ring with new buffers.
274 	 */
275 	u64 refill_threshold:16;
276 
277 	/* Max number of OQs available */
278 	u64 max_oqs:8;
279 
280 #else
281 	/* Max number of OQs available */
282 	u64 max_oqs:8;
283 
284 	/** The number of buffers that were consumed during packet processing by
285 	 *   the driver on this Output queue before the driver attempts to
286 	 *   replenish
287 	 *   the descriptor ring with new buffers.
288 	 */
289 	u64 refill_threshold:16;
290 
291 	/** Interrupt Coalescing (Packet Count). Octeon will interrupt the host
292 	 *  only if it sent as many packets as specified by this field.
293 	 *  The driver
294 	 *  usually does not use packet count interrupt coalescing.
295 	 */
296 	u64 oq_intr_pkt:16;
297 
298 	/** Interrupt Coalescing (Time Interval). Octeon will interrupt the
299 	 *  host if atleast one packet was sent in the time interval specified
300 	 *  by this field. The driver uses time interval interrupt coalescing
301 	 *  by default.  The time is specified in microseconds.
302 	 */
303 	u64 oq_intr_time:16;
304 
305 	u64 pkts_per_intr:16;
306 
307 	u64 reserved:16;
308 #endif
309 
310 };
311 
312 /** This structure conatins the NIC link configuration attributes,
313  *  common for all the OCTEON Modles.
314  */
315 struct octeon_nic_if_config {
316 #ifdef __BIG_ENDIAN_BITFIELD
317 	u64 reserved:56;
318 
319 	u64 base_queue:16;
320 
321 	u64 gmx_port_id:8;
322 
323 	/* SKB size, We need not change buf size even for Jumbo frames.
324 	 * Octeon can send jumbo frames in 4 consecutive descriptors,
325 	 */
326 	u64 rx_buf_size:16;
327 
328 	/* Num of desc for tx rings */
329 	u64 num_tx_descs:16;
330 
331 	/* Num of desc for rx rings */
332 	u64 num_rx_descs:16;
333 
334 	/* Actual configured value. Range could be: 1...max_rxqs */
335 	u64 num_rxqs:16;
336 
337 	/* Max Rxqs: Half for each of the two ports :max_oq/2  */
338 	u64 max_rxqs:16;
339 
340 	/* Actual configured value. Range could be: 1...max_txqs */
341 	u64 num_txqs:16;
342 
343 	/* Max Txqs: Half for each of the two ports :max_iq/2 */
344 	u64 max_txqs:16;
345 #else
346 	/* Max Txqs: Half for each of the two ports :max_iq/2 */
347 	u64 max_txqs:16;
348 
349 	/* Actual configured value. Range could be: 1...max_txqs */
350 	u64 num_txqs:16;
351 
352 	/* Max Rxqs: Half for each of the two ports :max_oq/2  */
353 	u64 max_rxqs:16;
354 
355 	/* Actual configured value. Range could be: 1...max_rxqs */
356 	u64 num_rxqs:16;
357 
358 	/* Num of desc for rx rings */
359 	u64 num_rx_descs:16;
360 
361 	/* Num of desc for tx rings */
362 	u64 num_tx_descs:16;
363 
364 	/* SKB size, We need not change buf size even for Jumbo frames.
365 	 * Octeon can send jumbo frames in 4 consecutive descriptors,
366 	 */
367 	u64 rx_buf_size:16;
368 
369 	u64 gmx_port_id:8;
370 
371 	u64 base_queue:16;
372 
373 	u64 reserved:56;
374 #endif
375 
376 };
377 
378 /** Structure to define the configuration attributes for meta data.
379  *  Applicable to all Octeon processors.
380  */
381 
382 struct octeon_misc_config {
383 #ifdef __BIG_ENDIAN_BITFIELD
384 	/** Host link status polling period */
385 	u64 host_link_query_interval:32;
386 	/** Oct link status polling period */
387 	u64 oct_link_query_interval:32;
388 
389 	u64 enable_sli_oq_bp:1;
390 	/** Control IQ Group */
391 	u64 ctrlq_grp:4;
392 #else
393 	/** Control IQ Group */
394 	u64 ctrlq_grp:4;
395 	/** BP for SLI OQ */
396 	u64 enable_sli_oq_bp:1;
397 	/** Host link status polling period */
398 	u64 oct_link_query_interval:32;
399 	/** Oct link status polling period */
400 	u64 host_link_query_interval:32;
401 #endif
402 };
403 
404 /** Structure to define the configuration for all OCTEON processors. */
405 struct octeon_config {
406 	u16 card_type;
407 	char *card_name;
408 
409 	/** Input Queue attributes. */
410 	struct octeon_iq_config iq;
411 
412 	/** Output Queue attributes. */
413 	struct octeon_oq_config oq;
414 
415 	/** NIC Port Configuration */
416 	struct octeon_nic_if_config nic_if_cfg[MAX_OCTEON_NICIF];
417 
418 	/** Miscellaneous attributes */
419 	struct octeon_misc_config misc;
420 
421 	int num_nic_ports;
422 
423 	int num_def_tx_descs;
424 
425 	/* Num of desc for rx rings */
426 	int num_def_rx_descs;
427 
428 	int def_rx_buf_size;
429 
430 };
431 
432 /* The following config values are fixed and should not be modified. */
433 
434 #define  BAR1_INDEX_DYNAMIC_MAP          2
435 #define  BAR1_INDEX_STATIC_MAP          15
436 #define  OCTEON_BAR1_ENTRY_SIZE         (4 * 1024 * 1024)
437 
438 #define  MAX_BAR1_IOREMAP_SIZE  (16 * OCTEON_BAR1_ENTRY_SIZE)
439 
440 /* Response lists - 1 ordered, 1 unordered-blocking, 1 unordered-nonblocking
441  *                  1 process done list, 1 zombie lists(timeouted sc list)
442  * NoResponse Lists are now maintained with each IQ. (Dec' 2007).
443  */
444 #define MAX_RESPONSE_LISTS           6
445 
446 /* Opcode hash bits. The opcode is hashed on the lower 6-bits to lookup the
447  * dispatch table.
448  */
449 #define OPCODE_MASK_BITS             6
450 
451 /* Mask for the 6-bit lookup hash */
452 #define OCTEON_OPCODE_MASK           0x3f
453 
454 /* Size of the dispatch table. The 6-bit hash can index into 2^6 entries */
455 #define DISPATCH_LIST_SIZE                      BIT(OPCODE_MASK_BITS)
456 
457 /* Maximum number of Octeon Instruction (command) queues */
458 #define MAX_OCTEON_INSTR_QUEUES(oct)		\
459 		(OCTEON_CN23XX_PF(oct) ? CN23XX_MAX_INPUT_QUEUES : \
460 					CN6XXX_MAX_INPUT_QUEUES)
461 
462 /* Maximum number of Octeon Instruction (command) queues */
463 #define MAX_OCTEON_OUTPUT_QUEUES(oct)		\
464 		(OCTEON_CN23XX_PF(oct) ? CN23XX_MAX_OUTPUT_QUEUES : \
465 					CN6XXX_MAX_OUTPUT_QUEUES)
466 
467 #define MAX_POSSIBLE_OCTEON_INSTR_QUEUES	CN23XX_MAX_INPUT_QUEUES
468 #define MAX_POSSIBLE_OCTEON_OUTPUT_QUEUES	CN23XX_MAX_OUTPUT_QUEUES
469 
470 #define MAX_POSSIBLE_VFS			64
471 
472 #endif /* __OCTEON_CONFIG_H__  */
473