xref: /linux-6.15/include/linux/mlx4/device.h (revision 6fa79bca)
1 /*
2  * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *	- Redistributions of source code must retain the above
15  *	  copyright notice, this list of conditions and the following
16  *	  disclaimer.
17  *
18  *	- Redistributions in binary form must reproduce the above
19  *	  copyright notice, this list of conditions and the following
20  *	  disclaimer in the documentation and/or other materials
21  *	  provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #ifndef MLX4_DEVICE_H
34 #define MLX4_DEVICE_H
35 
36 #include <linux/pci.h>
37 #include <linux/completion.h>
38 #include <linux/radix-tree.h>
39 #include <linux/cpu_rmap.h>
40 
41 #include <linux/atomic.h>
42 
43 #define MAX_MSIX_P_PORT		17
44 #define MAX_MSIX		64
45 #define MSIX_LEGACY_SZ		4
46 #define MIN_MSIX_P_PORT		5
47 
48 enum {
49 	MLX4_FLAG_MSI_X		= 1 << 0,
50 	MLX4_FLAG_OLD_PORT_CMDS	= 1 << 1,
51 	MLX4_FLAG_MASTER	= 1 << 2,
52 	MLX4_FLAG_SLAVE		= 1 << 3,
53 	MLX4_FLAG_SRIOV		= 1 << 4,
54 };
55 
56 enum {
57 	MLX4_PORT_CAP_IS_SM	= 1 << 1,
58 	MLX4_PORT_CAP_DEV_MGMT_SUP = 1 << 19,
59 };
60 
61 enum {
62 	MLX4_MAX_PORTS		= 2,
63 	MLX4_MAX_PORT_PKEYS	= 128
64 };
65 
66 /* base qkey for use in sriov tunnel-qp/proxy-qp communication.
67  * These qkeys must not be allowed for general use. This is a 64k range,
68  * and to test for violation, we use the mask (protect against future chg).
69  */
70 #define MLX4_RESERVED_QKEY_BASE  (0xFFFF0000)
71 #define MLX4_RESERVED_QKEY_MASK  (0xFFFF0000)
72 
73 enum {
74 	MLX4_BOARD_ID_LEN = 64
75 };
76 
77 enum {
78 	MLX4_MAX_NUM_PF		= 16,
79 	MLX4_MAX_NUM_VF		= 64,
80 	MLX4_MFUNC_MAX		= 80,
81 	MLX4_MAX_EQ_NUM		= 1024,
82 	MLX4_MFUNC_EQ_NUM	= 4,
83 	MLX4_MFUNC_MAX_EQES     = 8,
84 	MLX4_MFUNC_EQE_MASK     = (MLX4_MFUNC_MAX_EQES - 1)
85 };
86 
87 /* Driver supports 3 diffrent device methods to manage traffic steering:
88  *	-device managed - High level API for ib and eth flow steering. FW is
89  *			  managing flow steering tables.
90  *	- B0 steering mode - Common low level API for ib and (if supported) eth.
91  *	- A0 steering mode - Limited low level API for eth. In case of IB,
92  *			     B0 mode is in use.
93  */
94 enum {
95 	MLX4_STEERING_MODE_A0,
96 	MLX4_STEERING_MODE_B0,
97 	MLX4_STEERING_MODE_DEVICE_MANAGED
98 };
99 
100 static inline const char *mlx4_steering_mode_str(int steering_mode)
101 {
102 	switch (steering_mode) {
103 	case MLX4_STEERING_MODE_A0:
104 		return "A0 steering";
105 
106 	case MLX4_STEERING_MODE_B0:
107 		return "B0 steering";
108 
109 	case MLX4_STEERING_MODE_DEVICE_MANAGED:
110 		return "Device managed flow steering";
111 
112 	default:
113 		return "Unrecognize steering mode";
114 	}
115 }
116 
117 enum {
118 	MLX4_DEV_CAP_FLAG_RC		= 1LL <<  0,
119 	MLX4_DEV_CAP_FLAG_UC		= 1LL <<  1,
120 	MLX4_DEV_CAP_FLAG_UD		= 1LL <<  2,
121 	MLX4_DEV_CAP_FLAG_XRC		= 1LL <<  3,
122 	MLX4_DEV_CAP_FLAG_SRQ		= 1LL <<  6,
123 	MLX4_DEV_CAP_FLAG_IPOIB_CSUM	= 1LL <<  7,
124 	MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR	= 1LL <<  8,
125 	MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR	= 1LL <<  9,
126 	MLX4_DEV_CAP_FLAG_DPDP		= 1LL << 12,
127 	MLX4_DEV_CAP_FLAG_BLH		= 1LL << 15,
128 	MLX4_DEV_CAP_FLAG_MEM_WINDOW	= 1LL << 16,
129 	MLX4_DEV_CAP_FLAG_APM		= 1LL << 17,
130 	MLX4_DEV_CAP_FLAG_ATOMIC	= 1LL << 18,
131 	MLX4_DEV_CAP_FLAG_RAW_MCAST	= 1LL << 19,
132 	MLX4_DEV_CAP_FLAG_UD_AV_PORT	= 1LL << 20,
133 	MLX4_DEV_CAP_FLAG_UD_MCAST	= 1LL << 21,
134 	MLX4_DEV_CAP_FLAG_IBOE		= 1LL << 30,
135 	MLX4_DEV_CAP_FLAG_UC_LOOPBACK	= 1LL << 32,
136 	MLX4_DEV_CAP_FLAG_FCS_KEEP	= 1LL << 34,
137 	MLX4_DEV_CAP_FLAG_WOL_PORT1	= 1LL << 37,
138 	MLX4_DEV_CAP_FLAG_WOL_PORT2	= 1LL << 38,
139 	MLX4_DEV_CAP_FLAG_UDP_RSS	= 1LL << 40,
140 	MLX4_DEV_CAP_FLAG_VEP_UC_STEER	= 1LL << 41,
141 	MLX4_DEV_CAP_FLAG_VEP_MC_STEER	= 1LL << 42,
142 	MLX4_DEV_CAP_FLAG_COUNTERS	= 1LL << 48,
143 	MLX4_DEV_CAP_FLAG_SENSE_SUPPORT	= 1LL << 55,
144 	MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV = 1LL << 59,
145 };
146 
147 enum {
148 	MLX4_DEV_CAP_FLAG2_RSS			= 1LL <<  0,
149 	MLX4_DEV_CAP_FLAG2_RSS_TOP		= 1LL <<  1,
150 	MLX4_DEV_CAP_FLAG2_RSS_XOR		= 1LL <<  2,
151 	MLX4_DEV_CAP_FLAG2_FS_EN		= 1LL <<  3
152 };
153 
154 #define MLX4_ATTR_EXTENDED_PORT_INFO	cpu_to_be16(0xff90)
155 
156 enum {
157 	MLX4_BMME_FLAG_LOCAL_INV	= 1 <<  6,
158 	MLX4_BMME_FLAG_REMOTE_INV	= 1 <<  7,
159 	MLX4_BMME_FLAG_TYPE_2_WIN	= 1 <<  9,
160 	MLX4_BMME_FLAG_RESERVED_LKEY	= 1 << 10,
161 	MLX4_BMME_FLAG_FAST_REG_WR	= 1 << 11,
162 };
163 
164 enum mlx4_event {
165 	MLX4_EVENT_TYPE_COMP		   = 0x00,
166 	MLX4_EVENT_TYPE_PATH_MIG	   = 0x01,
167 	MLX4_EVENT_TYPE_COMM_EST	   = 0x02,
168 	MLX4_EVENT_TYPE_SQ_DRAINED	   = 0x03,
169 	MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE	   = 0x13,
170 	MLX4_EVENT_TYPE_SRQ_LIMIT	   = 0x14,
171 	MLX4_EVENT_TYPE_CQ_ERROR	   = 0x04,
172 	MLX4_EVENT_TYPE_WQ_CATAS_ERROR	   = 0x05,
173 	MLX4_EVENT_TYPE_EEC_CATAS_ERROR	   = 0x06,
174 	MLX4_EVENT_TYPE_PATH_MIG_FAILED	   = 0x07,
175 	MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
176 	MLX4_EVENT_TYPE_WQ_ACCESS_ERROR	   = 0x11,
177 	MLX4_EVENT_TYPE_SRQ_CATAS_ERROR	   = 0x12,
178 	MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR  = 0x08,
179 	MLX4_EVENT_TYPE_PORT_CHANGE	   = 0x09,
180 	MLX4_EVENT_TYPE_EQ_OVERFLOW	   = 0x0f,
181 	MLX4_EVENT_TYPE_ECC_DETECT	   = 0x0e,
182 	MLX4_EVENT_TYPE_CMD		   = 0x0a,
183 	MLX4_EVENT_TYPE_VEP_UPDATE	   = 0x19,
184 	MLX4_EVENT_TYPE_COMM_CHANNEL	   = 0x18,
185 	MLX4_EVENT_TYPE_FATAL_WARNING	   = 0x1b,
186 	MLX4_EVENT_TYPE_FLR_EVENT	   = 0x1c,
187 	MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT = 0x1d,
188 	MLX4_EVENT_TYPE_NONE		   = 0xff,
189 };
190 
191 enum {
192 	MLX4_PORT_CHANGE_SUBTYPE_DOWN	= 1,
193 	MLX4_PORT_CHANGE_SUBTYPE_ACTIVE	= 4
194 };
195 
196 enum {
197 	MLX4_FATAL_WARNING_SUBTYPE_WARMING = 0,
198 };
199 
200 enum slave_port_state {
201 	SLAVE_PORT_DOWN = 0,
202 	SLAVE_PENDING_UP,
203 	SLAVE_PORT_UP,
204 };
205 
206 enum slave_port_gen_event {
207 	SLAVE_PORT_GEN_EVENT_DOWN = 0,
208 	SLAVE_PORT_GEN_EVENT_UP,
209 	SLAVE_PORT_GEN_EVENT_NONE,
210 };
211 
212 enum slave_port_state_event {
213 	MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN,
214 	MLX4_PORT_STATE_DEV_EVENT_PORT_UP,
215 	MLX4_PORT_STATE_IB_PORT_STATE_EVENT_GID_VALID,
216 	MLX4_PORT_STATE_IB_EVENT_GID_INVALID,
217 };
218 
219 enum {
220 	MLX4_PERM_LOCAL_READ	= 1 << 10,
221 	MLX4_PERM_LOCAL_WRITE	= 1 << 11,
222 	MLX4_PERM_REMOTE_READ	= 1 << 12,
223 	MLX4_PERM_REMOTE_WRITE	= 1 << 13,
224 	MLX4_PERM_ATOMIC	= 1 << 14
225 };
226 
227 enum {
228 	MLX4_OPCODE_NOP			= 0x00,
229 	MLX4_OPCODE_SEND_INVAL		= 0x01,
230 	MLX4_OPCODE_RDMA_WRITE		= 0x08,
231 	MLX4_OPCODE_RDMA_WRITE_IMM	= 0x09,
232 	MLX4_OPCODE_SEND		= 0x0a,
233 	MLX4_OPCODE_SEND_IMM		= 0x0b,
234 	MLX4_OPCODE_LSO			= 0x0e,
235 	MLX4_OPCODE_RDMA_READ		= 0x10,
236 	MLX4_OPCODE_ATOMIC_CS		= 0x11,
237 	MLX4_OPCODE_ATOMIC_FA		= 0x12,
238 	MLX4_OPCODE_MASKED_ATOMIC_CS	= 0x14,
239 	MLX4_OPCODE_MASKED_ATOMIC_FA	= 0x15,
240 	MLX4_OPCODE_BIND_MW		= 0x18,
241 	MLX4_OPCODE_FMR			= 0x19,
242 	MLX4_OPCODE_LOCAL_INVAL		= 0x1b,
243 	MLX4_OPCODE_CONFIG_CMD		= 0x1f,
244 
245 	MLX4_RECV_OPCODE_RDMA_WRITE_IMM	= 0x00,
246 	MLX4_RECV_OPCODE_SEND		= 0x01,
247 	MLX4_RECV_OPCODE_SEND_IMM	= 0x02,
248 	MLX4_RECV_OPCODE_SEND_INVAL	= 0x03,
249 
250 	MLX4_CQE_OPCODE_ERROR		= 0x1e,
251 	MLX4_CQE_OPCODE_RESIZE		= 0x16,
252 };
253 
254 enum {
255 	MLX4_STAT_RATE_OFFSET	= 5
256 };
257 
258 enum mlx4_protocol {
259 	MLX4_PROT_IB_IPV6 = 0,
260 	MLX4_PROT_ETH,
261 	MLX4_PROT_IB_IPV4,
262 	MLX4_PROT_FCOE
263 };
264 
265 enum {
266 	MLX4_MTT_FLAG_PRESENT		= 1
267 };
268 
269 enum mlx4_qp_region {
270 	MLX4_QP_REGION_FW = 0,
271 	MLX4_QP_REGION_ETH_ADDR,
272 	MLX4_QP_REGION_FC_ADDR,
273 	MLX4_QP_REGION_FC_EXCH,
274 	MLX4_NUM_QP_REGION
275 };
276 
277 enum mlx4_port_type {
278 	MLX4_PORT_TYPE_NONE	= 0,
279 	MLX4_PORT_TYPE_IB	= 1,
280 	MLX4_PORT_TYPE_ETH	= 2,
281 	MLX4_PORT_TYPE_AUTO	= 3
282 };
283 
284 enum mlx4_special_vlan_idx {
285 	MLX4_NO_VLAN_IDX        = 0,
286 	MLX4_VLAN_MISS_IDX,
287 	MLX4_VLAN_REGULAR
288 };
289 
290 enum mlx4_steer_type {
291 	MLX4_MC_STEER = 0,
292 	MLX4_UC_STEER,
293 	MLX4_NUM_STEERS
294 };
295 
296 enum {
297 	MLX4_NUM_FEXCH          = 64 * 1024,
298 };
299 
300 enum {
301 	MLX4_MAX_FAST_REG_PAGES = 511,
302 };
303 
304 enum {
305 	MLX4_DEV_PMC_SUBTYPE_GUID_INFO	 = 0x14,
306 	MLX4_DEV_PMC_SUBTYPE_PORT_INFO	 = 0x15,
307 	MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE	 = 0x16,
308 };
309 
310 /* Port mgmt change event handling */
311 enum {
312 	MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK	= 1 << 0,
313 	MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK		= 1 << 1,
314 	MLX4_EQ_PORT_INFO_LID_CHANGE_MASK		= 1 << 2,
315 	MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK		= 1 << 3,
316 	MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK	= 1 << 4,
317 };
318 
319 #define MSTR_SM_CHANGE_MASK (MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK | \
320 			     MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK)
321 
322 static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
323 {
324 	return (major << 32) | (minor << 16) | subminor;
325 }
326 
327 struct mlx4_phys_caps {
328 	u32			gid_phys_table_len[MLX4_MAX_PORTS + 1];
329 	u32			pkey_phys_table_len[MLX4_MAX_PORTS + 1];
330 	u32			num_phys_eqs;
331 	u32			base_sqpn;
332 	u32			base_proxy_sqpn;
333 	u32			base_tunnel_sqpn;
334 };
335 
336 struct mlx4_caps {
337 	u64			fw_ver;
338 	u32			function;
339 	int			num_ports;
340 	int			vl_cap[MLX4_MAX_PORTS + 1];
341 	int			ib_mtu_cap[MLX4_MAX_PORTS + 1];
342 	__be32			ib_port_def_cap[MLX4_MAX_PORTS + 1];
343 	u64			def_mac[MLX4_MAX_PORTS + 1];
344 	int			eth_mtu_cap[MLX4_MAX_PORTS + 1];
345 	int			gid_table_len[MLX4_MAX_PORTS + 1];
346 	int			pkey_table_len[MLX4_MAX_PORTS + 1];
347 	int			trans_type[MLX4_MAX_PORTS + 1];
348 	int			vendor_oui[MLX4_MAX_PORTS + 1];
349 	int			wavelength[MLX4_MAX_PORTS + 1];
350 	u64			trans_code[MLX4_MAX_PORTS + 1];
351 	int			local_ca_ack_delay;
352 	int			num_uars;
353 	u32			uar_page_size;
354 	int			bf_reg_size;
355 	int			bf_regs_per_page;
356 	int			max_sq_sg;
357 	int			max_rq_sg;
358 	int			num_qps;
359 	int			max_wqes;
360 	int			max_sq_desc_sz;
361 	int			max_rq_desc_sz;
362 	int			max_qp_init_rdma;
363 	int			max_qp_dest_rdma;
364 	u32			*qp0_proxy;
365 	u32			*qp1_proxy;
366 	u32			*qp0_tunnel;
367 	u32			*qp1_tunnel;
368 	int			num_srqs;
369 	int			max_srq_wqes;
370 	int			max_srq_sge;
371 	int			reserved_srqs;
372 	int			num_cqs;
373 	int			max_cqes;
374 	int			reserved_cqs;
375 	int			num_eqs;
376 	int			reserved_eqs;
377 	int			num_comp_vectors;
378 	int			comp_pool;
379 	int			num_mpts;
380 	int			max_fmr_maps;
381 	int			num_mtts;
382 	int			fmr_reserved_mtts;
383 	int			reserved_mtts;
384 	int			reserved_mrws;
385 	int			reserved_uars;
386 	int			num_mgms;
387 	int			num_amgms;
388 	int			reserved_mcgs;
389 	int			num_qp_per_mgm;
390 	int			steering_mode;
391 	int			fs_log_max_ucast_qp_range_size;
392 	int			num_pds;
393 	int			reserved_pds;
394 	int			max_xrcds;
395 	int			reserved_xrcds;
396 	int			mtt_entry_sz;
397 	u32			max_msg_sz;
398 	u32			page_size_cap;
399 	u64			flags;
400 	u64			flags2;
401 	u32			bmme_flags;
402 	u32			reserved_lkey;
403 	u16			stat_rate_support;
404 	u8			port_width_cap[MLX4_MAX_PORTS + 1];
405 	int			max_gso_sz;
406 	int			max_rss_tbl_sz;
407 	int                     reserved_qps_cnt[MLX4_NUM_QP_REGION];
408 	int			reserved_qps;
409 	int                     reserved_qps_base[MLX4_NUM_QP_REGION];
410 	int                     log_num_macs;
411 	int                     log_num_vlans;
412 	int                     log_num_prios;
413 	enum mlx4_port_type	port_type[MLX4_MAX_PORTS + 1];
414 	u8			supported_type[MLX4_MAX_PORTS + 1];
415 	u8                      suggested_type[MLX4_MAX_PORTS + 1];
416 	u8                      default_sense[MLX4_MAX_PORTS + 1];
417 	u32			port_mask[MLX4_MAX_PORTS + 1];
418 	enum mlx4_port_type	possible_type[MLX4_MAX_PORTS + 1];
419 	u32			max_counters;
420 	u8			port_ib_mtu[MLX4_MAX_PORTS + 1];
421 	u16			sqp_demux;
422 };
423 
424 struct mlx4_buf_list {
425 	void		       *buf;
426 	dma_addr_t		map;
427 };
428 
429 struct mlx4_buf {
430 	struct mlx4_buf_list	direct;
431 	struct mlx4_buf_list   *page_list;
432 	int			nbufs;
433 	int			npages;
434 	int			page_shift;
435 };
436 
437 struct mlx4_mtt {
438 	u32			offset;
439 	int			order;
440 	int			page_shift;
441 };
442 
443 enum {
444 	MLX4_DB_PER_PAGE = PAGE_SIZE / 4
445 };
446 
447 struct mlx4_db_pgdir {
448 	struct list_head	list;
449 	DECLARE_BITMAP(order0, MLX4_DB_PER_PAGE);
450 	DECLARE_BITMAP(order1, MLX4_DB_PER_PAGE / 2);
451 	unsigned long	       *bits[2];
452 	__be32		       *db_page;
453 	dma_addr_t		db_dma;
454 };
455 
456 struct mlx4_ib_user_db_page;
457 
458 struct mlx4_db {
459 	__be32			*db;
460 	union {
461 		struct mlx4_db_pgdir		*pgdir;
462 		struct mlx4_ib_user_db_page	*user_page;
463 	}			u;
464 	dma_addr_t		dma;
465 	int			index;
466 	int			order;
467 };
468 
469 struct mlx4_hwq_resources {
470 	struct mlx4_db		db;
471 	struct mlx4_mtt		mtt;
472 	struct mlx4_buf		buf;
473 };
474 
475 struct mlx4_mr {
476 	struct mlx4_mtt		mtt;
477 	u64			iova;
478 	u64			size;
479 	u32			key;
480 	u32			pd;
481 	u32			access;
482 	int			enabled;
483 };
484 
485 struct mlx4_fmr {
486 	struct mlx4_mr		mr;
487 	struct mlx4_mpt_entry  *mpt;
488 	__be64		       *mtts;
489 	dma_addr_t		dma_handle;
490 	int			max_pages;
491 	int			max_maps;
492 	int			maps;
493 	u8			page_shift;
494 };
495 
496 struct mlx4_uar {
497 	unsigned long		pfn;
498 	int			index;
499 	struct list_head	bf_list;
500 	unsigned		free_bf_bmap;
501 	void __iomem	       *map;
502 	void __iomem	       *bf_map;
503 };
504 
505 struct mlx4_bf {
506 	unsigned long		offset;
507 	int			buf_size;
508 	struct mlx4_uar	       *uar;
509 	void __iomem	       *reg;
510 };
511 
512 struct mlx4_cq {
513 	void (*comp)		(struct mlx4_cq *);
514 	void (*event)		(struct mlx4_cq *, enum mlx4_event);
515 
516 	struct mlx4_uar	       *uar;
517 
518 	u32			cons_index;
519 
520 	__be32		       *set_ci_db;
521 	__be32		       *arm_db;
522 	int			arm_sn;
523 
524 	int			cqn;
525 	unsigned		vector;
526 
527 	atomic_t		refcount;
528 	struct completion	free;
529 };
530 
531 struct mlx4_qp {
532 	void (*event)		(struct mlx4_qp *, enum mlx4_event);
533 
534 	int			qpn;
535 
536 	atomic_t		refcount;
537 	struct completion	free;
538 };
539 
540 struct mlx4_srq {
541 	void (*event)		(struct mlx4_srq *, enum mlx4_event);
542 
543 	int			srqn;
544 	int			max;
545 	int			max_gs;
546 	int			wqe_shift;
547 
548 	atomic_t		refcount;
549 	struct completion	free;
550 };
551 
552 struct mlx4_av {
553 	__be32			port_pd;
554 	u8			reserved1;
555 	u8			g_slid;
556 	__be16			dlid;
557 	u8			reserved2;
558 	u8			gid_index;
559 	u8			stat_rate;
560 	u8			hop_limit;
561 	__be32			sl_tclass_flowlabel;
562 	u8			dgid[16];
563 };
564 
565 struct mlx4_eth_av {
566 	__be32		port_pd;
567 	u8		reserved1;
568 	u8		smac_idx;
569 	u16		reserved2;
570 	u8		reserved3;
571 	u8		gid_index;
572 	u8		stat_rate;
573 	u8		hop_limit;
574 	__be32		sl_tclass_flowlabel;
575 	u8		dgid[16];
576 	u32		reserved4[2];
577 	__be16		vlan;
578 	u8		mac[6];
579 };
580 
581 union mlx4_ext_av {
582 	struct mlx4_av		ib;
583 	struct mlx4_eth_av	eth;
584 };
585 
586 struct mlx4_counter {
587 	u8	reserved1[3];
588 	u8	counter_mode;
589 	__be32	num_ifc;
590 	u32	reserved2[2];
591 	__be64	rx_frames;
592 	__be64	rx_bytes;
593 	__be64	tx_frames;
594 	__be64	tx_bytes;
595 };
596 
597 struct mlx4_dev {
598 	struct pci_dev	       *pdev;
599 	unsigned long		flags;
600 	unsigned long		num_slaves;
601 	struct mlx4_caps	caps;
602 	struct mlx4_phys_caps	phys_caps;
603 	struct radix_tree_root	qp_table_tree;
604 	u8			rev_id;
605 	char			board_id[MLX4_BOARD_ID_LEN];
606 	int			num_vfs;
607 	u64			regid_promisc_array[MLX4_MAX_PORTS + 1];
608 	u64			regid_allmulti_array[MLX4_MAX_PORTS + 1];
609 };
610 
611 struct mlx4_eqe {
612 	u8			reserved1;
613 	u8			type;
614 	u8			reserved2;
615 	u8			subtype;
616 	union {
617 		u32		raw[6];
618 		struct {
619 			__be32	cqn;
620 		} __packed comp;
621 		struct {
622 			u16	reserved1;
623 			__be16	token;
624 			u32	reserved2;
625 			u8	reserved3[3];
626 			u8	status;
627 			__be64	out_param;
628 		} __packed cmd;
629 		struct {
630 			__be32	qpn;
631 		} __packed qp;
632 		struct {
633 			__be32	srqn;
634 		} __packed srq;
635 		struct {
636 			__be32	cqn;
637 			u32	reserved1;
638 			u8	reserved2[3];
639 			u8	syndrome;
640 		} __packed cq_err;
641 		struct {
642 			u32	reserved1[2];
643 			__be32	port;
644 		} __packed port_change;
645 		struct {
646 			#define COMM_CHANNEL_BIT_ARRAY_SIZE	4
647 			u32 reserved;
648 			u32 bit_vec[COMM_CHANNEL_BIT_ARRAY_SIZE];
649 		} __packed comm_channel_arm;
650 		struct {
651 			u8	port;
652 			u8	reserved[3];
653 			__be64	mac;
654 		} __packed mac_update;
655 		struct {
656 			__be32	slave_id;
657 		} __packed flr_event;
658 		struct {
659 			__be16  current_temperature;
660 			__be16  warning_threshold;
661 		} __packed warming;
662 		struct {
663 			u8 reserved[3];
664 			u8 port;
665 			union {
666 				struct {
667 					__be16 mstr_sm_lid;
668 					__be16 port_lid;
669 					__be32 changed_attr;
670 					u8 reserved[3];
671 					u8 mstr_sm_sl;
672 					__be64 gid_prefix;
673 				} __packed port_info;
674 				struct {
675 					__be32 block_ptr;
676 					__be32 tbl_entries_mask;
677 				} __packed tbl_change_info;
678 			} params;
679 		} __packed port_mgmt_change;
680 	}			event;
681 	u8			slave_id;
682 	u8			reserved3[2];
683 	u8			owner;
684 } __packed;
685 
686 struct mlx4_init_port_param {
687 	int			set_guid0;
688 	int			set_node_guid;
689 	int			set_si_guid;
690 	u16			mtu;
691 	int			port_width_cap;
692 	u16			vl_cap;
693 	u16			max_gid;
694 	u16			max_pkey;
695 	u64			guid0;
696 	u64			node_guid;
697 	u64			si_guid;
698 };
699 
700 #define mlx4_foreach_port(port, dev, type)				\
701 	for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)	\
702 		if ((type) == (dev)->caps.port_mask[(port)])
703 
704 #define mlx4_foreach_non_ib_transport_port(port, dev)                     \
705 	for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)	  \
706 		if (((dev)->caps.port_mask[port] != MLX4_PORT_TYPE_IB))
707 
708 #define mlx4_foreach_ib_transport_port(port, dev)                         \
709 	for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)	  \
710 		if (((dev)->caps.port_mask[port] == MLX4_PORT_TYPE_IB) || \
711 			((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
712 
713 #define MLX4_INVALID_SLAVE_ID	0xFF
714 
715 void handle_port_mgmt_change_event(struct work_struct *work);
716 
717 static inline int mlx4_master_func_num(struct mlx4_dev *dev)
718 {
719 	return dev->caps.function;
720 }
721 
722 static inline int mlx4_is_master(struct mlx4_dev *dev)
723 {
724 	return dev->flags & MLX4_FLAG_MASTER;
725 }
726 
727 static inline int mlx4_is_qp_reserved(struct mlx4_dev *dev, u32 qpn)
728 {
729 	return (qpn < dev->phys_caps.base_sqpn + 8 +
730 		16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev));
731 }
732 
733 static inline int mlx4_is_guest_proxy(struct mlx4_dev *dev, int slave, u32 qpn)
734 {
735 	int guest_proxy_base = dev->phys_caps.base_proxy_sqpn + slave * 8;
736 
737 	if (qpn >= guest_proxy_base && qpn < guest_proxy_base + 8)
738 		return 1;
739 
740 	return 0;
741 }
742 
743 static inline int mlx4_is_mfunc(struct mlx4_dev *dev)
744 {
745 	return dev->flags & (MLX4_FLAG_SLAVE | MLX4_FLAG_MASTER);
746 }
747 
748 static inline int mlx4_is_slave(struct mlx4_dev *dev)
749 {
750 	return dev->flags & MLX4_FLAG_SLAVE;
751 }
752 
753 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
754 		   struct mlx4_buf *buf);
755 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
756 static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
757 {
758 	if (BITS_PER_LONG == 64 || buf->nbufs == 1)
759 		return buf->direct.buf + offset;
760 	else
761 		return buf->page_list[offset >> PAGE_SHIFT].buf +
762 			(offset & (PAGE_SIZE - 1));
763 }
764 
765 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
766 void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
767 int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn);
768 void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn);
769 
770 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
771 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
772 int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf);
773 void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf);
774 
775 int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
776 		  struct mlx4_mtt *mtt);
777 void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
778 u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
779 
780 int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
781 		  int npages, int page_shift, struct mlx4_mr *mr);
782 void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
783 int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
784 int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
785 		   int start_index, int npages, u64 *page_list);
786 int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
787 		       struct mlx4_buf *buf);
788 
789 int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order);
790 void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db);
791 
792 int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
793 		       int size, int max_direct);
794 void mlx4_free_hwq_res(struct mlx4_dev *mdev, struct mlx4_hwq_resources *wqres,
795 		       int size);
796 
797 int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
798 		  struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
799 		  unsigned vector, int collapsed);
800 void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
801 
802 int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base);
803 void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
804 
805 int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
806 void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
807 
808 int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcdn,
809 		   struct mlx4_mtt *mtt, u64 db_rec, struct mlx4_srq *srq);
810 void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
811 int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
812 int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);
813 
814 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
815 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
816 
817 int mlx4_unicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
818 			int block_mcast_loopback, enum mlx4_protocol prot);
819 int mlx4_unicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
820 			enum mlx4_protocol prot);
821 int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
822 			  u8 port, int block_mcast_loopback,
823 			  enum mlx4_protocol protocol, u64 *reg_id);
824 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
825 			  enum mlx4_protocol protocol, u64 reg_id);
826 
827 enum {
828 	MLX4_DOMAIN_UVERBS	= 0x1000,
829 	MLX4_DOMAIN_ETHTOOL     = 0x2000,
830 	MLX4_DOMAIN_RFS         = 0x3000,
831 	MLX4_DOMAIN_NIC    = 0x5000,
832 };
833 
834 enum mlx4_net_trans_rule_id {
835 	MLX4_NET_TRANS_RULE_ID_ETH = 0,
836 	MLX4_NET_TRANS_RULE_ID_IB,
837 	MLX4_NET_TRANS_RULE_ID_IPV6,
838 	MLX4_NET_TRANS_RULE_ID_IPV4,
839 	MLX4_NET_TRANS_RULE_ID_TCP,
840 	MLX4_NET_TRANS_RULE_ID_UDP,
841 	MLX4_NET_TRANS_RULE_NUM, /* should be last */
842 };
843 
844 extern const u16 __sw_id_hw[];
845 
846 static inline int map_hw_to_sw_id(u16 header_id)
847 {
848 
849 	int i;
850 	for (i = 0; i < MLX4_NET_TRANS_RULE_NUM; i++) {
851 		if (header_id == __sw_id_hw[i])
852 			return i;
853 	}
854 	return -EINVAL;
855 }
856 
857 enum mlx4_net_trans_promisc_mode {
858 	MLX4_FS_PROMISC_NONE = 0,
859 	MLX4_FS_PROMISC_UPLINK,
860 	/* For future use. Not implemented yet */
861 	MLX4_FS_PROMISC_FUNCTION_PORT,
862 	MLX4_FS_PROMISC_ALL_MULTI,
863 };
864 
865 struct mlx4_spec_eth {
866 	u8	dst_mac[6];
867 	u8	dst_mac_msk[6];
868 	u8	src_mac[6];
869 	u8	src_mac_msk[6];
870 	u8	ether_type_enable;
871 	__be16	ether_type;
872 	__be16	vlan_id_msk;
873 	__be16	vlan_id;
874 };
875 
876 struct mlx4_spec_tcp_udp {
877 	__be16 dst_port;
878 	__be16 dst_port_msk;
879 	__be16 src_port;
880 	__be16 src_port_msk;
881 };
882 
883 struct mlx4_spec_ipv4 {
884 	__be32 dst_ip;
885 	__be32 dst_ip_msk;
886 	__be32 src_ip;
887 	__be32 src_ip_msk;
888 };
889 
890 struct mlx4_spec_ib {
891 	__be32	r_qpn;
892 	__be32	qpn_msk;
893 	u8	dst_gid[16];
894 	u8	dst_gid_msk[16];
895 };
896 
897 struct mlx4_spec_list {
898 	struct	list_head list;
899 	enum	mlx4_net_trans_rule_id id;
900 	union {
901 		struct mlx4_spec_eth eth;
902 		struct mlx4_spec_ib ib;
903 		struct mlx4_spec_ipv4 ipv4;
904 		struct mlx4_spec_tcp_udp tcp_udp;
905 	};
906 };
907 
908 enum mlx4_net_trans_hw_rule_queue {
909 	MLX4_NET_TRANS_Q_FIFO,
910 	MLX4_NET_TRANS_Q_LIFO,
911 };
912 
913 struct mlx4_net_trans_rule {
914 	struct	list_head list;
915 	enum	mlx4_net_trans_hw_rule_queue queue_mode;
916 	bool	exclusive;
917 	bool	allow_loopback;
918 	enum	mlx4_net_trans_promisc_mode promisc_mode;
919 	u8	port;
920 	u16	priority;
921 	u32	qpn;
922 };
923 
924 int mlx4_flow_steer_promisc_add(struct mlx4_dev *dev, u8 port, u32 qpn,
925 				enum mlx4_net_trans_promisc_mode mode);
926 int mlx4_flow_steer_promisc_remove(struct mlx4_dev *dev, u8 port,
927 				   enum mlx4_net_trans_promisc_mode mode);
928 int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
929 int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
930 int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
931 int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
932 int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
933 
934 int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac);
935 void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac);
936 int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac);
937 int mlx4_get_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn);
938 void mlx4_put_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int qpn);
939 void mlx4_set_stats_bitmap(struct mlx4_dev *dev, u64 *stats_bitmap);
940 int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
941 			  u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
942 int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
943 			   u8 promisc);
944 int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc);
945 int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
946 		u8 *pg, u16 *ratelimit);
947 int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
948 int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
949 void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index);
950 
951 int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
952 		      int npages, u64 iova, u32 *lkey, u32 *rkey);
953 int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
954 		   int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
955 int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
956 void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
957 		    u32 *lkey, u32 *rkey);
958 int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
959 int mlx4_SYNC_TPT(struct mlx4_dev *dev);
960 int mlx4_test_interrupts(struct mlx4_dev *dev);
961 int mlx4_assign_eq(struct mlx4_dev *dev, char *name, struct cpu_rmap *rmap,
962 		   int *vector);
963 void mlx4_release_eq(struct mlx4_dev *dev, int vec);
964 
965 int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port);
966 int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port);
967 
968 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx);
969 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx);
970 
971 int mlx4_flow_attach(struct mlx4_dev *dev,
972 		     struct mlx4_net_trans_rule *rule, u64 *reg_id);
973 int mlx4_flow_detach(struct mlx4_dev *dev, u64 reg_id);
974 
975 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port,
976 			  int i, int val);
977 
978 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey);
979 
980 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave);
981 int mlx4_gen_pkey_eqe(struct mlx4_dev *dev, int slave, u8 port);
982 int mlx4_gen_guid_change_eqe(struct mlx4_dev *dev, int slave, u8 port);
983 int mlx4_gen_slaves_port_mgt_ev(struct mlx4_dev *dev, u8 port, int attr);
984 int mlx4_gen_port_state_change_eqe(struct mlx4_dev *dev, int slave, u8 port, u8 port_subtype_change);
985 enum slave_port_state mlx4_get_slave_port_state(struct mlx4_dev *dev, int slave, u8 port);
986 int set_and_calc_slave_port_state(struct mlx4_dev *dev, int slave, u8 port, int event, enum slave_port_gen_event *gen_event);
987 
988 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid);
989 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave);
990 
991 #endif /* MLX4_DEVICE_H */
992