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 | = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 17), |
121 | |
122 | /* union vnic_rss_cpu in mem: (u64)a0=paddr, (u16)a1=len */ |
123 | = _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 | |