tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * Linux driver for VMware's vmxnet3 ethernet NIC.
3 *
4 * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; version 2 of the License and no later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
13 * NON INFRINGEMENT. See the GNU General Public License for more
14 * details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * The full GNU General Public License is included in this distribution in
21 * the file called "COPYING".
22 *
23 * Maintained by: pv-drivers@vmware.com
24 *
25 */
26
27#ifndef _VMXNET3_DEFS_H_
28#define _VMXNET3_DEFS_H_
29
30#include "upt1_defs.h"
31
32/* all registers are 32 bit wide */
33/* BAR 1 */
34enum {
35 VMXNET3_REG_VRRS = 0x0, /* Vmxnet3 Revision Report Selection */
36 VMXNET3_REG_UVRS = 0x8, /* UPT Version Report Selection */
37 VMXNET3_REG_DSAL = 0x10, /* Driver Shared Address Low */
38 VMXNET3_REG_DSAH = 0x18, /* Driver Shared Address High */
39 VMXNET3_REG_CMD = 0x20, /* Command */
40 VMXNET3_REG_MACL = 0x28, /* MAC Address Low */
41 VMXNET3_REG_MACH = 0x30, /* MAC Address High */
42 VMXNET3_REG_ICR = 0x38, /* Interrupt Cause Register */
43 VMXNET3_REG_ECR = 0x40 /* Event Cause Register */
44};
45
46/* BAR 0 */
47enum {
48 VMXNET3_REG_IMR = 0x0, /* Interrupt Mask Register */
49 VMXNET3_REG_TXPROD = 0x600, /* Tx Producer Index */
50 VMXNET3_REG_RXPROD = 0x800, /* Rx Producer Index for ring 1 */
51 VMXNET3_REG_RXPROD2 = 0xA00 /* Rx Producer Index for ring 2 */
52};
53
54#define VMXNET3_PT_REG_SIZE 4096 /* BAR 0 */
55#define VMXNET3_VD_REG_SIZE 4096 /* BAR 1 */
56
57#define VMXNET3_REG_ALIGN 8 /* All registers are 8-byte aligned. */
58#define VMXNET3_REG_ALIGN_MASK 0x7
59
60/* I/O Mapped access to registers */
61#define VMXNET3_IO_TYPE_PT 0
62#define VMXNET3_IO_TYPE_VD 1
63#define VMXNET3_IO_ADDR(type, reg) (((type) << 24) | ((reg) & 0xFFFFFF))
64#define VMXNET3_IO_TYPE(addr) ((addr) >> 24)
65#define VMXNET3_IO_REG(addr) ((addr) & 0xFFFFFF)
66
67enum {
68 VMXNET3_CMD_FIRST_SET = 0xCAFE0000,
69 VMXNET3_CMD_ACTIVATE_DEV = VMXNET3_CMD_FIRST_SET,
70 VMXNET3_CMD_QUIESCE_DEV,
71 VMXNET3_CMD_RESET_DEV,
72 VMXNET3_CMD_UPDATE_RX_MODE,
73 VMXNET3_CMD_UPDATE_MAC_FILTERS,
74 VMXNET3_CMD_UPDATE_VLAN_FILTERS,
75 VMXNET3_CMD_UPDATE_RSSIDT,
76 VMXNET3_CMD_UPDATE_IML,
77 VMXNET3_CMD_UPDATE_PMCFG,
78 VMXNET3_CMD_UPDATE_FEATURE,
79 VMXNET3_CMD_RESERVED1,
80 VMXNET3_CMD_LOAD_PLUGIN,
81 VMXNET3_CMD_RESERVED2,
82 VMXNET3_CMD_RESERVED3,
83 VMXNET3_CMD_SET_COALESCE,
84 VMXNET3_CMD_REGISTER_MEMREGS,
85
86 VMXNET3_CMD_FIRST_GET = 0xF00D0000,
87 VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
88 VMXNET3_CMD_GET_STATS,
89 VMXNET3_CMD_GET_LINK,
90 VMXNET3_CMD_GET_PERM_MAC_LO,
91 VMXNET3_CMD_GET_PERM_MAC_HI,
92 VMXNET3_CMD_GET_DID_LO,
93 VMXNET3_CMD_GET_DID_HI,
94 VMXNET3_CMD_GET_DEV_EXTRA_INFO,
95 VMXNET3_CMD_GET_CONF_INTR,
96 VMXNET3_CMD_GET_RESERVED1,
97 VMXNET3_CMD_GET_TXDATA_DESC_SIZE,
98 VMXNET3_CMD_GET_COALESCE,
99};
100
101/*
102 * Little Endian layout of bitfields -
103 * Byte 0 : 7.....len.....0
104 * Byte 1 : rsvd gen 13.len.8
105 * Byte 2 : 5.msscof.0 ext1 dtype
106 * Byte 3 : 13...msscof...6
107 *
108 * Big Endian layout of bitfields -
109 * Byte 0: 13...msscof...6
110 * Byte 1 : 5.msscof.0 ext1 dtype
111 * Byte 2 : rsvd gen 13.len.8
112 * Byte 3 : 7.....len.....0
113 *
114 * Thus, le32_to_cpu on the dword will allow the big endian driver to read
115 * the bit fields correctly. And cpu_to_le32 will convert bitfields
116 * bit fields written by big endian driver to format required by device.
117 */
118
119struct Vmxnet3_TxDesc {
120 __le64 addr;
121
122#ifdef __BIG_ENDIAN_BITFIELD
123 u32 msscof:14; /* MSS, checksum offset, flags */
124 u32 ext1:1;
125 u32 dtype:1; /* descriptor type */
126 u32 rsvd:1;
127 u32 gen:1; /* generation bit */
128 u32 len:14;
129#else
130 u32 len:14;
131 u32 gen:1; /* generation bit */
132 u32 rsvd:1;
133 u32 dtype:1; /* descriptor type */
134 u32 ext1:1;
135 u32 msscof:14; /* MSS, checksum offset, flags */
136#endif /* __BIG_ENDIAN_BITFIELD */
137
138#ifdef __BIG_ENDIAN_BITFIELD
139 u32 tci:16; /* Tag to Insert */
140 u32 ti:1; /* VLAN Tag Insertion */
141 u32 ext2:1;
142 u32 cq:1; /* completion request */
143 u32 eop:1; /* End Of Packet */
144 u32 om:2; /* offload mode */
145 u32 hlen:10; /* header len */
146#else
147 u32 hlen:10; /* header len */
148 u32 om:2; /* offload mode */
149 u32 eop:1; /* End Of Packet */
150 u32 cq:1; /* completion request */
151 u32 ext2:1;
152 u32 ti:1; /* VLAN Tag Insertion */
153 u32 tci:16; /* Tag to Insert */
154#endif /* __BIG_ENDIAN_BITFIELD */
155};
156
157/* TxDesc.OM values */
158#define VMXNET3_OM_NONE 0
159#define VMXNET3_OM_CSUM 2
160#define VMXNET3_OM_TSO 3
161
162/* fields in TxDesc we access w/o using bit fields */
163#define VMXNET3_TXD_EOP_SHIFT 12
164#define VMXNET3_TXD_CQ_SHIFT 13
165#define VMXNET3_TXD_GEN_SHIFT 14
166#define VMXNET3_TXD_EOP_DWORD_SHIFT 3
167#define VMXNET3_TXD_GEN_DWORD_SHIFT 2
168
169#define VMXNET3_TXD_CQ (1 << VMXNET3_TXD_CQ_SHIFT)
170#define VMXNET3_TXD_EOP (1 << VMXNET3_TXD_EOP_SHIFT)
171#define VMXNET3_TXD_GEN (1 << VMXNET3_TXD_GEN_SHIFT)
172
173#define VMXNET3_HDR_COPY_SIZE 128
174
175
176struct Vmxnet3_TxDataDesc {
177 u8 data[VMXNET3_HDR_COPY_SIZE];
178};
179
180typedef u8 Vmxnet3_RxDataDesc;
181
182#define VMXNET3_TCD_GEN_SHIFT 31
183#define VMXNET3_TCD_GEN_SIZE 1
184#define VMXNET3_TCD_TXIDX_SHIFT 0
185#define VMXNET3_TCD_TXIDX_SIZE 12
186#define VMXNET3_TCD_GEN_DWORD_SHIFT 3
187
188struct Vmxnet3_TxCompDesc {
189 u32 txdIdx:12; /* Index of the EOP TxDesc */
190 u32 ext1:20;
191
192 __le32 ext2;
193 __le32 ext3;
194
195 u32 rsvd:24;
196 u32 type:7; /* completion type */
197 u32 gen:1; /* generation bit */
198};
199
200struct Vmxnet3_RxDesc {
201 __le64 addr;
202
203#ifdef __BIG_ENDIAN_BITFIELD
204 u32 gen:1; /* Generation bit */
205 u32 rsvd:15;
206 u32 dtype:1; /* Descriptor type */
207 u32 btype:1; /* Buffer Type */
208 u32 len:14;
209#else
210 u32 len:14;
211 u32 btype:1; /* Buffer Type */
212 u32 dtype:1; /* Descriptor type */
213 u32 rsvd:15;
214 u32 gen:1; /* Generation bit */
215#endif
216 u32 ext1;
217};
218
219/* values of RXD.BTYPE */
220#define VMXNET3_RXD_BTYPE_HEAD 0 /* head only */
221#define VMXNET3_RXD_BTYPE_BODY 1 /* body only */
222
223/* fields in RxDesc we access w/o using bit fields */
224#define VMXNET3_RXD_BTYPE_SHIFT 14
225#define VMXNET3_RXD_GEN_SHIFT 31
226
227struct Vmxnet3_RxCompDesc {
228#ifdef __BIG_ENDIAN_BITFIELD
229 u32 ext2:1;
230 u32 cnc:1; /* Checksum Not Calculated */
231 u32 rssType:4; /* RSS hash type used */
232 u32 rqID:10; /* rx queue/ring ID */
233 u32 sop:1; /* Start of Packet */
234 u32 eop:1; /* End of Packet */
235 u32 ext1:2;
236 u32 rxdIdx:12; /* Index of the RxDesc */
237#else
238 u32 rxdIdx:12; /* Index of the RxDesc */
239 u32 ext1:2;
240 u32 eop:1; /* End of Packet */
241 u32 sop:1; /* Start of Packet */
242 u32 rqID:10; /* rx queue/ring ID */
243 u32 rssType:4; /* RSS hash type used */
244 u32 cnc:1; /* Checksum Not Calculated */
245 u32 ext2:1;
246#endif /* __BIG_ENDIAN_BITFIELD */
247
248 __le32 rssHash; /* RSS hash value */
249
250#ifdef __BIG_ENDIAN_BITFIELD
251 u32 tci:16; /* Tag stripped */
252 u32 ts:1; /* Tag is stripped */
253 u32 err:1; /* Error */
254 u32 len:14; /* data length */
255#else
256 u32 len:14; /* data length */
257 u32 err:1; /* Error */
258 u32 ts:1; /* Tag is stripped */
259 u32 tci:16; /* Tag stripped */
260#endif /* __BIG_ENDIAN_BITFIELD */
261
262
263#ifdef __BIG_ENDIAN_BITFIELD
264 u32 gen:1; /* generation bit */
265 u32 type:7; /* completion type */
266 u32 fcs:1; /* Frame CRC correct */
267 u32 frg:1; /* IP Fragment */
268 u32 v4:1; /* IPv4 */
269 u32 v6:1; /* IPv6 */
270 u32 ipc:1; /* IP Checksum Correct */
271 u32 tcp:1; /* TCP packet */
272 u32 udp:1; /* UDP packet */
273 u32 tuc:1; /* TCP/UDP Checksum Correct */
274 u32 csum:16;
275#else
276 u32 csum:16;
277 u32 tuc:1; /* TCP/UDP Checksum Correct */
278 u32 udp:1; /* UDP packet */
279 u32 tcp:1; /* TCP packet */
280 u32 ipc:1; /* IP Checksum Correct */
281 u32 v6:1; /* IPv6 */
282 u32 v4:1; /* IPv4 */
283 u32 frg:1; /* IP Fragment */
284 u32 fcs:1; /* Frame CRC correct */
285 u32 type:7; /* completion type */
286 u32 gen:1; /* generation bit */
287#endif /* __BIG_ENDIAN_BITFIELD */
288};
289
290struct Vmxnet3_RxCompDescExt {
291 __le32 dword1;
292 u8 segCnt; /* Number of aggregated packets */
293 u8 dupAckCnt; /* Number of duplicate Acks */
294 __le16 tsDelta; /* TCP timestamp difference */
295 __le32 dword2;
296#ifdef __BIG_ENDIAN_BITFIELD
297 u32 gen:1; /* generation bit */
298 u32 type:7; /* completion type */
299 u32 fcs:1; /* Frame CRC correct */
300 u32 frg:1; /* IP Fragment */
301 u32 v4:1; /* IPv4 */
302 u32 v6:1; /* IPv6 */
303 u32 ipc:1; /* IP Checksum Correct */
304 u32 tcp:1; /* TCP packet */
305 u32 udp:1; /* UDP packet */
306 u32 tuc:1; /* TCP/UDP Checksum Correct */
307 u32 mss:16;
308#else
309 u32 mss:16;
310 u32 tuc:1; /* TCP/UDP Checksum Correct */
311 u32 udp:1; /* UDP packet */
312 u32 tcp:1; /* TCP packet */
313 u32 ipc:1; /* IP Checksum Correct */
314 u32 v6:1; /* IPv6 */
315 u32 v4:1; /* IPv4 */
316 u32 frg:1; /* IP Fragment */
317 u32 fcs:1; /* Frame CRC correct */
318 u32 type:7; /* completion type */
319 u32 gen:1; /* generation bit */
320#endif /* __BIG_ENDIAN_BITFIELD */
321};
322
323
324/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.dword[3] */
325#define VMXNET3_RCD_TUC_SHIFT 16
326#define VMXNET3_RCD_IPC_SHIFT 19
327
328/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.qword[1] */
329#define VMXNET3_RCD_TYPE_SHIFT 56
330#define VMXNET3_RCD_GEN_SHIFT 63
331
332/* csum OK for TCP/UDP pkts over IP */
333#define VMXNET3_RCD_CSUM_OK (1 << VMXNET3_RCD_TUC_SHIFT | \
334 1 << VMXNET3_RCD_IPC_SHIFT)
335#define VMXNET3_TXD_GEN_SIZE 1
336#define VMXNET3_TXD_EOP_SIZE 1
337
338/* value of RxCompDesc.rssType */
339enum {
340 VMXNET3_RCD_RSS_TYPE_NONE = 0,
341 VMXNET3_RCD_RSS_TYPE_IPV4 = 1,
342 VMXNET3_RCD_RSS_TYPE_TCPIPV4 = 2,
343 VMXNET3_RCD_RSS_TYPE_IPV6 = 3,
344 VMXNET3_RCD_RSS_TYPE_TCPIPV6 = 4,
345};
346
347
348/* a union for accessing all cmd/completion descriptors */
349union Vmxnet3_GenericDesc {
350 __le64 qword[2];
351 __le32 dword[4];
352 __le16 word[8];
353 struct Vmxnet3_TxDesc txd;
354 struct Vmxnet3_RxDesc rxd;
355 struct Vmxnet3_TxCompDesc tcd;
356 struct Vmxnet3_RxCompDesc rcd;
357 struct Vmxnet3_RxCompDescExt rcdExt;
358};
359
360#define VMXNET3_INIT_GEN 1
361
362/* Max size of a single tx buffer */
363#define VMXNET3_MAX_TX_BUF_SIZE (1 << 14)
364
365/* # of tx desc needed for a tx buffer size */
366#define VMXNET3_TXD_NEEDED(size) (((size) + VMXNET3_MAX_TX_BUF_SIZE - 1) / \
367 VMXNET3_MAX_TX_BUF_SIZE)
368
369/* max # of tx descs for a non-tso pkt */
370#define VMXNET3_MAX_TXD_PER_PKT 16
371
372/* Max size of a single rx buffer */
373#define VMXNET3_MAX_RX_BUF_SIZE ((1 << 14) - 1)
374/* Minimum size of a type 0 buffer */
375#define VMXNET3_MIN_T0_BUF_SIZE 128
376#define VMXNET3_MAX_CSUM_OFFSET 1024
377
378/* Ring base address alignment */
379#define VMXNET3_RING_BA_ALIGN 512
380#define VMXNET3_RING_BA_MASK (VMXNET3_RING_BA_ALIGN - 1)
381
382/* Ring size must be a multiple of 32 */
383#define VMXNET3_RING_SIZE_ALIGN 32
384#define VMXNET3_RING_SIZE_MASK (VMXNET3_RING_SIZE_ALIGN - 1)
385
386/* Tx Data Ring buffer size must be a multiple of 64 */
387#define VMXNET3_TXDATA_DESC_SIZE_ALIGN 64
388#define VMXNET3_TXDATA_DESC_SIZE_MASK (VMXNET3_TXDATA_DESC_SIZE_ALIGN - 1)
389
390/* Rx Data Ring buffer size must be a multiple of 64 */
391#define VMXNET3_RXDATA_DESC_SIZE_ALIGN 64
392#define VMXNET3_RXDATA_DESC_SIZE_MASK (VMXNET3_RXDATA_DESC_SIZE_ALIGN - 1)
393
394/* Max ring size */
395#define VMXNET3_TX_RING_MAX_SIZE 4096
396#define VMXNET3_TC_RING_MAX_SIZE 4096
397#define VMXNET3_RX_RING_MAX_SIZE 4096
398#define VMXNET3_RX_RING2_MAX_SIZE 4096
399#define VMXNET3_RC_RING_MAX_SIZE 8192
400
401#define VMXNET3_TXDATA_DESC_MIN_SIZE 128
402#define VMXNET3_TXDATA_DESC_MAX_SIZE 2048
403
404#define VMXNET3_RXDATA_DESC_MAX_SIZE 2048
405
406/* a list of reasons for queue stop */
407
408enum {
409 VMXNET3_ERR_NOEOP = 0x80000000, /* cannot find the EOP desc of a pkt */
410 VMXNET3_ERR_TXD_REUSE = 0x80000001, /* reuse TxDesc before tx completion */
411 VMXNET3_ERR_BIG_PKT = 0x80000002, /* too many TxDesc for a pkt */
412 VMXNET3_ERR_DESC_NOT_SPT = 0x80000003, /* descriptor type not supported */
413 VMXNET3_ERR_SMALL_BUF = 0x80000004, /* type 0 buffer too small */
414 VMXNET3_ERR_STRESS = 0x80000005, /* stress option firing in vmkernel */
415 VMXNET3_ERR_SWITCH = 0x80000006, /* mode switch failure */
416 VMXNET3_ERR_TXD_INVALID = 0x80000007, /* invalid TxDesc */
417};
418
419/* completion descriptor types */
420#define VMXNET3_CDTYPE_TXCOMP 0 /* Tx Completion Descriptor */
421#define VMXNET3_CDTYPE_RXCOMP 3 /* Rx Completion Descriptor */
422#define VMXNET3_CDTYPE_RXCOMP_LRO 4 /* Rx Completion Descriptor for LRO */
423
424enum {
425 VMXNET3_GOS_BITS_UNK = 0, /* unknown */
426 VMXNET3_GOS_BITS_32 = 1,
427 VMXNET3_GOS_BITS_64 = 2,
428};
429
430#define VMXNET3_GOS_TYPE_LINUX 1
431
432
433struct Vmxnet3_GOSInfo {
434#ifdef __BIG_ENDIAN_BITFIELD
435 u32 gosMisc:10; /* other info about gos */
436 u32 gosVer:16; /* gos version */
437 u32 gosType:4; /* which guest */
438 u32 gosBits:2; /* 32-bit or 64-bit? */
439#else
440 u32 gosBits:2; /* 32-bit or 64-bit? */
441 u32 gosType:4; /* which guest */
442 u32 gosVer:16; /* gos version */
443 u32 gosMisc:10; /* other info about gos */
444#endif /* __BIG_ENDIAN_BITFIELD */
445};
446
447struct Vmxnet3_DriverInfo {
448 __le32 version;
449 struct Vmxnet3_GOSInfo gos;
450 __le32 vmxnet3RevSpt;
451 __le32 uptVerSpt;
452};
453
454
455#define VMXNET3_REV1_MAGIC 3133079265u
456
457/*
458 * QueueDescPA must be 128 bytes aligned. It points to an array of
459 * Vmxnet3_TxQueueDesc followed by an array of Vmxnet3_RxQueueDesc.
460 * The number of Vmxnet3_TxQueueDesc/Vmxnet3_RxQueueDesc are specified by
461 * Vmxnet3_MiscConf.numTxQueues/numRxQueues, respectively.
462 */
463#define VMXNET3_QUEUE_DESC_ALIGN 128
464
465
466struct Vmxnet3_MiscConf {
467 struct Vmxnet3_DriverInfo driverInfo;
468 __le64 uptFeatures;
469 __le64 ddPA; /* driver data PA */
470 __le64 queueDescPA; /* queue descriptor table PA */
471 __le32 ddLen; /* driver data len */
472 __le32 queueDescLen; /* queue desc. table len in bytes */
473 __le32 mtu;
474 __le16 maxNumRxSG;
475 u8 numTxQueues;
476 u8 numRxQueues;
477 __le32 reserved[4];
478};
479
480
481struct Vmxnet3_TxQueueConf {
482 __le64 txRingBasePA;
483 __le64 dataRingBasePA;
484 __le64 compRingBasePA;
485 __le64 ddPA; /* driver data */
486 __le64 reserved;
487 __le32 txRingSize; /* # of tx desc */
488 __le32 dataRingSize; /* # of data desc */
489 __le32 compRingSize; /* # of comp desc */
490 __le32 ddLen; /* size of driver data */
491 u8 intrIdx;
492 u8 _pad1[1];
493 __le16 txDataRingDescSize;
494 u8 _pad2[4];
495};
496
497
498struct Vmxnet3_RxQueueConf {
499 __le64 rxRingBasePA[2];
500 __le64 compRingBasePA;
501 __le64 ddPA; /* driver data */
502 __le64 rxDataRingBasePA;
503 __le32 rxRingSize[2]; /* # of rx desc */
504 __le32 compRingSize; /* # of rx comp desc */
505 __le32 ddLen; /* size of driver data */
506 u8 intrIdx;
507 u8 _pad1[1];
508 __le16 rxDataRingDescSize; /* size of rx data ring buffer */
509 u8 _pad2[4];
510};
511
512
513enum vmxnet3_intr_mask_mode {
514 VMXNET3_IMM_AUTO = 0,
515 VMXNET3_IMM_ACTIVE = 1,
516 VMXNET3_IMM_LAZY = 2
517};
518
519enum vmxnet3_intr_type {
520 VMXNET3_IT_AUTO = 0,
521 VMXNET3_IT_INTX = 1,
522 VMXNET3_IT_MSI = 2,
523 VMXNET3_IT_MSIX = 3
524};
525
526#define VMXNET3_MAX_TX_QUEUES 8
527#define VMXNET3_MAX_RX_QUEUES 16
528/* addition 1 for events */
529#define VMXNET3_MAX_INTRS 25
530
531/* value of intrCtrl */
532#define VMXNET3_IC_DISABLE_ALL 0x1 /* bit 0 */
533
534
535struct Vmxnet3_IntrConf {
536 bool autoMask;
537 u8 numIntrs; /* # of interrupts */
538 u8 eventIntrIdx;
539 u8 modLevels[VMXNET3_MAX_INTRS]; /* moderation level for
540 * each intr */
541 __le32 intrCtrl;
542 __le32 reserved[2];
543};
544
545/* one bit per VLAN ID, the size is in the units of u32 */
546#define VMXNET3_VFT_SIZE (4096 / (sizeof(u32) * 8))
547
548
549struct Vmxnet3_QueueStatus {
550 bool stopped;
551 u8 _pad[3];
552 __le32 error;
553};
554
555
556struct Vmxnet3_TxQueueCtrl {
557 __le32 txNumDeferred;
558 __le32 txThreshold;
559 __le64 reserved;
560};
561
562
563struct Vmxnet3_RxQueueCtrl {
564 bool updateRxProd;
565 u8 _pad[7];
566 __le64 reserved;
567};
568
569enum {
570 VMXNET3_RXM_UCAST = 0x01, /* unicast only */
571 VMXNET3_RXM_MCAST = 0x02, /* multicast passing the filters */
572 VMXNET3_RXM_BCAST = 0x04, /* broadcast only */
573 VMXNET3_RXM_ALL_MULTI = 0x08, /* all multicast */
574 VMXNET3_RXM_PROMISC = 0x10 /* promiscuous */
575};
576
577struct Vmxnet3_RxFilterConf {
578 __le32 rxMode; /* VMXNET3_RXM_xxx */
579 __le16 mfTableLen; /* size of the multicast filter table */
580 __le16 _pad1;
581 __le64 mfTablePA; /* PA of the multicast filters table */
582 __le32 vfTable[VMXNET3_VFT_SIZE]; /* vlan filter */
583};
584
585
586#define VMXNET3_PM_MAX_FILTERS 6
587#define VMXNET3_PM_MAX_PATTERN_SIZE 128
588#define VMXNET3_PM_MAX_MASK_SIZE (VMXNET3_PM_MAX_PATTERN_SIZE / 8)
589
590#define VMXNET3_PM_WAKEUP_MAGIC cpu_to_le16(0x01) /* wake up on magic pkts */
591#define VMXNET3_PM_WAKEUP_FILTER cpu_to_le16(0x02) /* wake up on pkts matching
592 * filters */
593
594
595struct Vmxnet3_PM_PktFilter {
596 u8 maskSize;
597 u8 patternSize;
598 u8 mask[VMXNET3_PM_MAX_MASK_SIZE];
599 u8 pattern[VMXNET3_PM_MAX_PATTERN_SIZE];
600 u8 pad[6];
601};
602
603
604struct Vmxnet3_PMConf {
605 __le16 wakeUpEvents; /* VMXNET3_PM_WAKEUP_xxx */
606 u8 numFilters;
607 u8 pad[5];
608 struct Vmxnet3_PM_PktFilter filters[VMXNET3_PM_MAX_FILTERS];
609};
610
611
612struct Vmxnet3_VariableLenConfDesc {
613 __le32 confVer;
614 __le32 confLen;
615 __le64 confPA;
616};
617
618
619struct Vmxnet3_TxQueueDesc {
620 struct Vmxnet3_TxQueueCtrl ctrl;
621 struct Vmxnet3_TxQueueConf conf;
622
623 /* Driver read after a GET command */
624 struct Vmxnet3_QueueStatus status;
625 struct UPT1_TxStats stats;
626 u8 _pad[88]; /* 128 aligned */
627};
628
629
630struct Vmxnet3_RxQueueDesc {
631 struct Vmxnet3_RxQueueCtrl ctrl;
632 struct Vmxnet3_RxQueueConf conf;
633 /* Driver read after a GET commad */
634 struct Vmxnet3_QueueStatus status;
635 struct UPT1_RxStats stats;
636 u8 __pad[88]; /* 128 aligned */
637};
638
639struct Vmxnet3_SetPolling {
640 u8 enablePolling;
641};
642
643#define VMXNET3_COAL_STATIC_MAX_DEPTH 128
644#define VMXNET3_COAL_RBC_MIN_RATE 100
645#define VMXNET3_COAL_RBC_MAX_RATE 100000
646
647enum Vmxnet3_CoalesceMode {
648 VMXNET3_COALESCE_DISABLED = 0,
649 VMXNET3_COALESCE_ADAPT = 1,
650 VMXNET3_COALESCE_STATIC = 2,
651 VMXNET3_COALESCE_RBC = 3
652};
653
654struct Vmxnet3_CoalesceRbc {
655 u32 rbc_rate;
656};
657
658struct Vmxnet3_CoalesceStatic {
659 u32 tx_depth;
660 u32 tx_comp_depth;
661 u32 rx_depth;
662};
663
664struct Vmxnet3_CoalesceScheme {
665 enum Vmxnet3_CoalesceMode coalMode;
666 union {
667 struct Vmxnet3_CoalesceRbc coalRbc;
668 struct Vmxnet3_CoalesceStatic coalStatic;
669 } coalPara;
670};
671
672struct Vmxnet3_MemoryRegion {
673 __le64 startPA;
674 __le32 length;
675 __le16 txQueueBits;
676 __le16 rxQueueBits;
677};
678
679#define MAX_MEMORY_REGION_PER_QUEUE 16
680#define MAX_MEMORY_REGION_PER_DEVICE 256
681
682struct Vmxnet3_MemRegs {
683 __le16 numRegs;
684 __le16 pad[3];
685 struct Vmxnet3_MemoryRegion memRegs[1];
686};
687
688/* If the command data <= 16 bytes, use the shared memory directly.
689 * otherwise, use variable length configuration descriptor.
690 */
691union Vmxnet3_CmdInfo {
692 struct Vmxnet3_VariableLenConfDesc varConf;
693 struct Vmxnet3_SetPolling setPolling;
694 __le64 data[2];
695};
696
697struct Vmxnet3_DSDevRead {
698 /* read-only region for device, read by dev in response to a SET cmd */
699 struct Vmxnet3_MiscConf misc;
700 struct Vmxnet3_IntrConf intrConf;
701 struct Vmxnet3_RxFilterConf rxFilterConf;
702 struct Vmxnet3_VariableLenConfDesc rssConfDesc;
703 struct Vmxnet3_VariableLenConfDesc pmConfDesc;
704 struct Vmxnet3_VariableLenConfDesc pluginConfDesc;
705};
706
707/* All structures in DriverShared are padded to multiples of 8 bytes */
708struct Vmxnet3_DriverShared {
709 __le32 magic;
710 /* make devRead start at 64bit boundaries */
711 __le32 pad;
712 struct Vmxnet3_DSDevRead devRead;
713 __le32 ecr;
714 __le32 reserved;
715 union {
716 __le32 reserved1[4];
717 union Vmxnet3_CmdInfo cmdInfo; /* only valid in the context of
718 * executing the relevant
719 * command
720 */
721 } cu;
722};
723
724
725#define VMXNET3_ECR_RQERR (1 << 0)
726#define VMXNET3_ECR_TQERR (1 << 1)
727#define VMXNET3_ECR_LINK (1 << 2)
728#define VMXNET3_ECR_DIC (1 << 3)
729#define VMXNET3_ECR_DEBUG (1 << 4)
730
731/* flip the gen bit of a ring */
732#define VMXNET3_FLIP_RING_GEN(gen) ((gen) = (gen) ^ 0x1)
733
734/* only use this if moving the idx won't affect the gen bit */
735#define VMXNET3_INC_RING_IDX_ONLY(idx, ring_size) \
736 do {\
737 (idx)++;\
738 if (unlikely((idx) == (ring_size))) {\
739 (idx) = 0;\
740 } \
741 } while (0)
742
743#define VMXNET3_SET_VFTABLE_ENTRY(vfTable, vid) \
744 (vfTable[vid >> 5] |= (1 << (vid & 31)))
745#define VMXNET3_CLEAR_VFTABLE_ENTRY(vfTable, vid) \
746 (vfTable[vid >> 5] &= ~(1 << (vid & 31)))
747
748#define VMXNET3_VFTABLE_ENTRY_IS_SET(vfTable, vid) \
749 ((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)
750
751#define VMXNET3_MAX_MTU 9000
752#define VMXNET3_MIN_MTU 60
753
754#define VMXNET3_LINK_UP (10000 << 16 | 1) /* 10 Gbps, up */
755#define VMXNET3_LINK_DOWN 0
756
757#endif /* _VMXNET3_DEFS_H_ */