xref: /openbmc/linux/drivers/scsi/fnic/vnic_devcmd.h (revision e6550b3e)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
4  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
5  */
6 #ifndef _VNIC_DEVCMD_H_
7 #define _VNIC_DEVCMD_H_
8 
9 #define _CMD_NBITS      14
10 #define _CMD_VTYPEBITS	10
11 #define _CMD_FLAGSBITS  6
12 #define _CMD_DIRBITS	2
13 
14 #define _CMD_NMASK      ((1 << _CMD_NBITS)-1)
15 #define _CMD_VTYPEMASK  ((1 << _CMD_VTYPEBITS)-1)
16 #define _CMD_FLAGSMASK  ((1 << _CMD_FLAGSBITS)-1)
17 #define _CMD_DIRMASK    ((1 << _CMD_DIRBITS)-1)
18 
19 #define _CMD_NSHIFT     0
20 #define _CMD_VTYPESHIFT (_CMD_NSHIFT+_CMD_NBITS)
21 #define _CMD_FLAGSSHIFT (_CMD_VTYPESHIFT+_CMD_VTYPEBITS)
22 #define _CMD_DIRSHIFT   (_CMD_FLAGSSHIFT+_CMD_FLAGSBITS)
23 
24 /*
25  * Direction bits (from host perspective).
26  */
27 #define _CMD_DIR_NONE   0U
28 #define _CMD_DIR_WRITE  1U
29 #define _CMD_DIR_READ   2U
30 #define _CMD_DIR_RW     (_CMD_DIR_WRITE | _CMD_DIR_READ)
31 
32 /*
33  * Flag bits.
34  */
35 #define _CMD_FLAGS_NONE 0U
36 #define _CMD_FLAGS_NOWAIT 1U
37 
38 /*
39  * vNIC type bits.
40  */
41 #define _CMD_VTYPE_NONE  0U
42 #define _CMD_VTYPE_ENET  1U
43 #define _CMD_VTYPE_FC    2U
44 #define _CMD_VTYPE_SCSI  4U
45 #define _CMD_VTYPE_ALL   (_CMD_VTYPE_ENET | _CMD_VTYPE_FC | _CMD_VTYPE_SCSI)
46 
47 /*
48  * Used to create cmds..
49 */
50 #define _CMDCF(dir, flags, vtype, nr)  \
51 	(((dir)   << _CMD_DIRSHIFT) | \
52 	((flags) << _CMD_FLAGSSHIFT) | \
53 	((vtype) << _CMD_VTYPESHIFT) | \
54 	((nr)    << _CMD_NSHIFT))
55 #define _CMDC(dir, vtype, nr)    _CMDCF(dir, 0, vtype, nr)
56 #define _CMDCNW(dir, vtype, nr)  _CMDCF(dir, _CMD_FLAGS_NOWAIT, vtype, nr)
57 
58 /*
59  * Used to decode cmds..
60 */
61 #define _CMD_DIR(cmd)            (((cmd) >> _CMD_DIRSHIFT) & _CMD_DIRMASK)
62 #define _CMD_FLAGS(cmd)          (((cmd) >> _CMD_FLAGSSHIFT) & _CMD_FLAGSMASK)
63 #define _CMD_VTYPE(cmd)          (((cmd) >> _CMD_VTYPESHIFT) & _CMD_VTYPEMASK)
64 #define _CMD_N(cmd)              (((cmd) >> _CMD_NSHIFT) & _CMD_NMASK)
65 
66 enum vnic_devcmd_cmd {
67 	CMD_NONE                = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_NONE, 0),
68 
69 	/* mcpu fw info in mem: (u64)a0=paddr to struct vnic_devcmd_fw_info */
70 	CMD_MCPU_FW_INFO        = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 1),
71 
72 	/* dev-specific block member:
73 	 *    in: (u16)a0=offset,(u8)a1=size
74 	 *    out: a0=value */
75 	CMD_DEV_SPEC            = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 2),
76 
77 	/* stats clear */
78 	CMD_STATS_CLEAR         = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 3),
79 
80 	/* stats dump in mem: (u64)a0=paddr to stats area,
81 	 *                    (u16)a1=sizeof stats area */
82 	CMD_STATS_DUMP          = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 4),
83 
84 	/* set Rx packet filter: (u32)a0=filters (see CMD_PFILTER_*) */
85 	CMD_PACKET_FILTER       = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 7),
86 
87 	/* hang detection notification */
88 	CMD_HANG_NOTIFY         = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 8),
89 
90 	/* MAC address in (u48)a0 */
91 	CMD_MAC_ADDR            = _CMDC(_CMD_DIR_READ,
92 					_CMD_VTYPE_ENET | _CMD_VTYPE_FC, 9),
93 
94 	/* disable/enable promisc mode: (u8)a0=0/1 */
95 /***** XXX DEPRECATED *****/
96 	CMD_PROMISC_MODE        = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 10),
97 
98 	/* disable/enable all-multi mode: (u8)a0=0/1 */
99 /***** XXX DEPRECATED *****/
100 	CMD_ALLMULTI_MODE       = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 11),
101 
102 	/* add addr from (u48)a0 */
103 	CMD_ADDR_ADD            = _CMDCNW(_CMD_DIR_WRITE,
104 					_CMD_VTYPE_ENET | _CMD_VTYPE_FC, 12),
105 
106 	/* del addr from (u48)a0 */
107 	CMD_ADDR_DEL            = _CMDCNW(_CMD_DIR_WRITE,
108 					_CMD_VTYPE_ENET | _CMD_VTYPE_FC, 13),
109 
110 	/* add VLAN id in (u16)a0 */
111 	CMD_VLAN_ADD            = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 14),
112 
113 	/* del VLAN id in (u16)a0 */
114 	CMD_VLAN_DEL            = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 15),
115 
116 	/* nic_cfg in (u32)a0 */
117 	CMD_NIC_CFG             = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 16),
118 
119 	/* union vnic_rss_key in mem: (u64)a0=paddr, (u16)a1=len */
120 	CMD_RSS_KEY             = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 17),
121 
122 	/* union vnic_rss_cpu in mem: (u64)a0=paddr, (u16)a1=len */
123 	CMD_RSS_CPU             = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 18),
124 
125 	/* initiate softreset */
126 	CMD_SOFT_RESET          = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 19),
127 
128 	/* softreset status:
129 	 *    out: a0=0 reset complete, a0=1 reset in progress */
130 	CMD_SOFT_RESET_STATUS   = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 20),
131 
132 	/* set struct vnic_devcmd_notify buffer in mem:
133 	 * in:
134 	 *   (u64)a0=paddr to notify (set paddr=0 to unset)
135 	 *   (u32)a1 & 0x00000000ffffffff=sizeof(struct vnic_devcmd_notify)
136 	 *   (u16)a1 & 0x0000ffff00000000=intr num (-1 for no intr)
137 	 * out:
138 	 *   (u32)a1 = effective size
139 	 */
140 	CMD_NOTIFY              = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 21),
141 
142 	/* UNDI API: (u64)a0=paddr to s_PXENV_UNDI_ struct,
143 	 *           (u8)a1=PXENV_UNDI_xxx */
144 	CMD_UNDI                = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 22),
145 
146 	/* initiate open sequence (u32)a0=flags (see CMD_OPENF_*) */
147 	CMD_OPEN		= _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 23),
148 
149 	/* open status:
150 	 *    out: a0=0 open complete, a0=1 open in progress */
151 	CMD_OPEN_STATUS		= _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 24),
152 
153 	/* close vnic */
154 	CMD_CLOSE		= _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 25),
155 
156 	/* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */
157 	CMD_INIT		= _CMDCNW(_CMD_DIR_READ, _CMD_VTYPE_ALL, 26),
158 
159 	/* variant of CMD_INIT, with provisioning info
160 	 *     (u64)a0=paddr of vnic_devcmd_provinfo
161 	 *     (u32)a1=sizeof provision info
162 	 */
163 	CMD_INIT_PROV_INFO	= _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 27),
164 
165 	/* enable virtual link */
166 	CMD_ENABLE		= _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28),
167 
168 	/* disable virtual link */
169 	CMD_DISABLE		= _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 29),
170 
171 	/* stats dump all vnics on uplink in mem: (u64)a0=paddr (u32)a1=uif */
172 	CMD_STATS_DUMP_ALL	= _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 30),
173 
174 	/* init status:
175 	 *    out: a0=0 init complete, a0=1 init in progress
176 	 *         if a0=0, a1=errno */
177 	CMD_INIT_STATUS		= _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 31),
178 
179 	/* INT13 API: (u64)a0=paddr to vnic_int13_params struct
180 	 *            (u8)a1=INT13_CMD_xxx */
181 	CMD_INT13               = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_FC, 32),
182 
183 	/* logical uplink enable/disable: (u64)a0: 0/1=disable/enable */
184 	CMD_LOGICAL_UPLINK      = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 33),
185 
186 	/* undo initialize of virtual link */
187 	CMD_DEINIT		= _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 34),
188 
189 	/* check fw capability of a cmd:
190 	 * in:  (u32)a0=cmd
191 	 * out: (u32)a0=errno, 0:valid cmd, a1=supported VNIC_STF_* bits */
192 	CMD_CAPABILITY      = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 36),
193 
194 	/* persistent binding info
195 	 * in:  (u64)a0=paddr of arg
196 	 *      (u32)a1=CMD_PERBI_XXX */
197 	CMD_PERBI       = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_FC, 37),
198 
199 	/* Interrupt Assert Register functionality
200 	 * in: (u16)a0=interrupt number to assert
201 	 */
202 	CMD_IAR         = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 38),
203 
204 	/* initiate hangreset, like softreset after hang detected */
205 	CMD_HANG_RESET      = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 39),
206 
207 	/* hangreset status:
208 	 *    out: a0=0 reset complete, a0=1 reset in progress */
209 	CMD_HANG_RESET_STATUS   = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 40),
210 
211 	/*
212 	 * Set hw ingress packet vlan rewrite mode:
213 	 * in:  (u32)a0=new vlan rewrite mode
214 	 * out: (u32)a0=old vlan rewrite mode */
215 	CMD_IG_VLAN_REWRITE_MODE = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ENET, 41),
216 
217 	/*
218 	 * in:  (u16)a0=bdf of target vnic
219 	 *      (u32)a1=cmd to proxy
220 	 *      a2-a15=args to cmd in a1
221 	 * out: (u32)a0=status of proxied cmd
222 	 *      a1-a15=out args of proxied cmd */
223 	CMD_PROXY_BY_BDF =  _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 42),
224 
225 	/*
226 	 * As for BY_BDF except a0 is index of hvnlink subordinate vnic
227 	 * or SR-IOV virtual vnic
228 	 */
229 	CMD_PROXY_BY_INDEX =    _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 43),
230 
231 	/*
232 	 * For HPP toggle:
233 	 * adapter-info-get
234 	 * in:  (u64)a0=phsical address of buffer passed in from caller.
235 	 *      (u16)a1=size of buffer specified in a0.
236 	 * out: (u64)a0=phsical address of buffer passed in from caller.
237 	 *      (u16)a1=actual bytes from VIF-CONFIG-INFO TLV, or
238 	 *              0 if no VIF-CONFIG-INFO TLV was ever received. */
239 	CMD_CONFIG_INFO_GET = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 44),
240 
241 	/*
242 	 * INT13 API: (u64)a0=paddr to vnic_int13_params struct
243 	 *            (u32)a1=INT13_CMD_xxx
244 	 */
245 	CMD_INT13_ALL = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 45),
246 
247 	/*
248 	 * Set default vlan:
249 	 * in: (u16)a0=new default vlan
250 	 *     (u16)a1=zero for overriding vlan with param a0,
251 	 *             non-zero for resetting vlan to the default
252 	 * out: (u16)a0=old default vlan
253 	 */
254 	CMD_SET_DEFAULT_VLAN = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 46),
255 
256 	/* init_prov_info2:
257 	 * Variant of CMD_INIT_PROV_INFO, where it will not try to enable
258 	 * the vnic until CMD_ENABLE2 is issued.
259 	 *     (u64)a0=paddr of vnic_devcmd_provinfo
260 	 *     (u32)a1=sizeof provision info
261 	 */
262 	CMD_INIT_PROV_INFO2  = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 47),
263 
264 	/* enable2:
265 	 *      (u32)a0=0                  ==> standby
266 	 *             =CMD_ENABLE2_ACTIVE ==> active
267 	 */
268 	CMD_ENABLE2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 48),
269 
270 	/*
271 	 * cmd_status:
272 	 *     Returns the status of the specified command
273 	 * Input:
274 	 *     a0 = command for which status is being queried.
275 	 *          Possible values are:
276 	 *              CMD_SOFT_RESET
277 	 *              CMD_HANG_RESET
278 	 *              CMD_OPEN
279 	 *              CMD_INIT
280 	 *              CMD_INIT_PROV_INFO
281 	 *              CMD_DEINIT
282 	 *              CMD_INIT_PROV_INFO2
283 	 *              CMD_ENABLE2
284 	 * Output:
285 	 *     if status == STAT_ERROR
286 	 *        a0 = ERR_ENOTSUPPORTED - status for command in a0 is
287 	 *                                 not supported
288 	 *     if status == STAT_NONE
289 	 *        a0 = status of the devcmd specified in a0 as follows.
290 	 *             ERR_SUCCESS   - command in a0 completed successfully
291 	 *             ERR_EINPROGRESS - command in a0 is still in progress
292 	 */
293 	CMD_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 49),
294 
295 	/*
296 	 * Returns interrupt coalescing timer conversion factors.
297 	 * After calling this devcmd, ENIC driver can convert
298 	 * interrupt coalescing timer in usec into CPU cycles as follows:
299 	 *
300 	 *   intr_timer_cycles = intr_timer_usec * multiplier / divisor
301 	 *
302 	 * Interrupt coalescing timer in usecs can be be converted/obtained
303 	 * from CPU cycles as follows:
304 	 *
305 	 *   intr_timer_usec = intr_timer_cycles * divisor / multiplier
306 	 *
307 	 * in: none
308 	 * out: (u32)a0 = multiplier
309 	 *      (u32)a1 = divisor
310 	 *      (u32)a2 = maximum timer value in usec
311 	 */
312 	CMD_INTR_COAL_CONVERT = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 50),
313 
314 	/*
315 	 * ISCSI DUMP API:
316 	 * in: (u64)a0=paddr of the param or param itself
317 	 *     (u32)a1=ISCSI_CMD_xxx
318 	 */
319 	CMD_ISCSI_DUMP_REQ = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 51),
320 
321 	/*
322 	 * ISCSI DUMP STATUS API:
323 	 * in: (u32)a0=cmd tag
324 	 * in: (u32)a1=ISCSI_CMD_xxx
325 	 * out: (u32)a0=cmd status
326 	 */
327 	CMD_ISCSI_DUMP_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 52),
328 
329 	/*
330 	 * Subvnic migration from MQ <--> VF.
331 	 * Enable the LIF migration from MQ to VF and vice versa. MQ and VF
332 	 * indexes are statically bound at the time of initialization.
333 	 * Based on the
334 	 * direction of migration, the resources of either MQ or the VF shall
335 	 * be attached to the LIF.
336 	 * in:        (u32)a0=Direction of Migration
337 	 *					0=> Migrate to VF
338 	 *					1=> Migrate to MQ
339 	 *            (u32)a1=VF index (MQ index)
340 	 */
341 	CMD_MIGRATE_SUBVNIC = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 53),
342 
343 	/*
344 	 * Register / Deregister the notification block for MQ subvnics
345 	 * in:
346 	 *   (u64)a0=paddr to notify (set paddr=0 to unset)
347 	 *   (u32)a1 & 0x00000000ffffffff=sizeof(struct vnic_devcmd_notify)
348 	 *   (u16)a1 & 0x0000ffff00000000=intr num (-1 for no intr)
349 	 * out:
350 	 *   (u32)a1 = effective size
351 	 */
352 	CMD_SUBVNIC_NOTIFY = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 54),
353 
354 	/*
355 	 * Set the predefined mac address as default
356 	 * in:
357 	 *   (u48)a0=mac addr
358 	 */
359 	CMD_SET_MAC_ADDR = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 55),
360 
361 	/* Update the provisioning info of the given VIF
362 	 *     (u64)a0=paddr of vnic_devcmd_provinfo
363 	 *     (u32)a1=sizeof provision info
364 	 */
365 	CMD_PROV_INFO_UPDATE = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 56),
366 
367 	/*
368 	 * Initialization for the devcmd2 interface.
369 	 * in: (u64) a0=host result buffer physical address
370 	 * in: (u16) a1=number of entries in result buffer
371 	 */
372 	CMD_INITIALIZE_DEVCMD2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 57)
373 };
374 
375 /* flags for CMD_OPEN */
376 #define CMD_OPENF_OPROM		0x1	/* open coming from option rom */
377 
378 #define CMD_OPENF_RQ_ENABLE_THEN_POST   0x2
379 
380 /* flags for CMD_INIT */
381 #define CMD_INITF_DEFAULT_MAC	0x1	/* init with default mac addr */
382 
383 /* flags for CMD_PACKET_FILTER */
384 #define CMD_PFILTER_DIRECTED		0x01
385 #define CMD_PFILTER_MULTICAST		0x02
386 #define CMD_PFILTER_BROADCAST		0x04
387 #define CMD_PFILTER_PROMISCUOUS		0x08
388 #define CMD_PFILTER_ALL_MULTICAST	0x10
389 
390 enum vnic_devcmd_status {
391 	STAT_NONE = 0,
392 	STAT_BUSY = 1 << 0,	/* cmd in progress */
393 	STAT_ERROR = 1 << 1,	/* last cmd caused error (code in a0) */
394 };
395 
396 enum vnic_devcmd_error {
397 	ERR_SUCCESS = 0,
398 	ERR_EINVAL = 1,
399 	ERR_EFAULT = 2,
400 	ERR_EPERM = 3,
401 	ERR_EBUSY = 4,
402 	ERR_ECMDUNKNOWN = 5,
403 	ERR_EBADSTATE = 6,
404 	ERR_ENOMEM = 7,
405 	ERR_ETIMEDOUT = 8,
406 	ERR_ELINKDOWN = 9,
407 };
408 
409 struct vnic_devcmd_fw_info {
410 	char fw_version[32];
411 	char fw_build[32];
412 	char hw_version[32];
413 	char hw_serial_number[32];
414 };
415 
416 struct vnic_devcmd_notify {
417 	u32 csum;		/* checksum over following words */
418 
419 	u32 link_state;		/* link up == 1 */
420 	u32 port_speed;		/* effective port speed (rate limit) */
421 	u32 mtu;		/* MTU */
422 	u32 msglvl;		/* requested driver msg lvl */
423 	u32 uif;		/* uplink interface */
424 	u32 status;		/* status bits (see VNIC_STF_*) */
425 	u32 error;		/* error code (see ERR_*) for first ERR */
426 	u32 link_down_cnt;	/* running count of link down transitions */
427 };
428 #define VNIC_STF_FATAL_ERR	0x0001	/* fatal fw error */
429 
430 struct vnic_devcmd_provinfo {
431 	u8 oui[3];
432 	u8 type;
433 	u8 data[];
434 };
435 
436 /*
437  * Writing cmd register causes STAT_BUSY to get set in status register.
438  * When cmd completes, STAT_BUSY will be cleared.
439  *
440  * If cmd completed successfully STAT_ERROR will be clear
441  * and args registers contain cmd-specific results.
442  *
443  * If cmd error, STAT_ERROR will be set and args[0] contains error code.
444  *
445  * status register is read-only.  While STAT_BUSY is set,
446  * all other register contents are read-only.
447  */
448 
449 /* Make sizeof(vnic_devcmd) a power-of-2 for I/O BAR. */
450 #define VNIC_DEVCMD_NARGS 15
451 struct vnic_devcmd {
452 	u32 status;			/* RO */
453 	u32 cmd;			/* RW */
454 	u64 args[VNIC_DEVCMD_NARGS];	/* RW cmd args (little-endian) */
455 };
456 
457 /*
458  * Version 2 of the interface.
459  *
460  * Some things are carried over, notably the vnic_devcmd_cmd enum.
461  */
462 
463 /*
464  * Flags for vnic_devcmd2.flags
465  */
466 
467 #define DEVCMD2_FNORESULT	0x1 /* Don't copy result to host */
468 
469 #define VNIC_DEVCMD2_NARGS			VNIC_DEVCMD_NARGS
470 
471 struct vnic_devcmd2 {
472 	u16 pad;
473 	u16 flags;
474 	u32 cmd;                /* same command #defines as original */
475 	u64 args[VNIC_DEVCMD2_NARGS];
476 };
477 
478 #define VNIC_DEVCMD2_NRESULTS			VNIC_DEVCMD_NARGS
479 struct devcmd2_result {
480 	u64 results[VNIC_DEVCMD2_NRESULTS];
481 	u32 pad;
482 	u16 completed_index;    /* into copy WQ */
483 	u8  error;              /* same error codes as original */
484 	u8  color;              /* 0 or 1 as with completion queues */
485 };
486 
487 #define DEVCMD2_RING_SIZE			32
488 #define DEVCMD2_DESC_SIZE			128
489 
490 #define DEVCMD2_RESULTS_SIZE_MAX		((1 << 16) - 1)
491 
492 #endif /* _VNIC_DEVCMD_H_ */
493