ia64/linux-2.6.18-xen.hg

view drivers/net/typhoon.h @ 897:329ea0ccb344

balloon: try harder to balloon up under memory pressure.

Currently if the balloon driver is unable to increase the guest's
reservation it assumes the failure was due to reaching its full
allocation, gives up on the ballooning operation and records the limit
it reached as the "hard limit". The driver will not try again until
the target is set again (even to the same value).

However it is possible that ballooning has in fact failed due to
memory pressure in the host and therefore it is desirable to keep
attempting to reach the target in case memory becomes available. The
most likely scenario is that some guests are ballooning down while
others are ballooning up and therefore there is temporary memory
pressure while things stabilise. You would not expect a well behaved
toolstack to ask a domain to balloon to more than its allocation nor
would you expect it to deliberately over-commit memory by setting
balloon targets which exceed the total host memory.

This patch drops the concept of a hard limit and causes the balloon
driver to retry increasing the reservation on a timer in the same
manner as when decreasing the reservation.

Also if we partially succeed in increasing the reservation
(i.e. receive less pages than we asked for) then we may as well keep
those pages rather than returning them to Xen.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Fri Jun 05 14:01:20 2009 +0100 (2009-06-05)
parents 831230e53067
children
line source
1 /* typhoon.h: chip info for the 3Com 3CR990 family of controllers */
2 /*
3 Written 2002-2003 by David Dillow <dave@thedillows.org>
5 This software may be used and distributed according to the terms of
6 the GNU General Public License (GPL), incorporated herein by reference.
7 Drivers based on or derived from this code fall under the GPL and must
8 retain the authorship, copyright and license notice. This file is not
9 a complete program and may only be used when the entire operating
10 system is licensed under the GPL.
12 This software is available on a public web site. It may enable
13 cryptographic capabilities of the 3Com hardware, and may be
14 exported from the United States under License Exception "TSU"
15 pursuant to 15 C.F.R. Section 740.13(e).
17 This work was funded by the National Library of Medicine under
18 the Department of Energy project number 0274DD06D1 and NLM project
19 number Y1-LM-2015-01.
20 */
22 /* All Typhoon ring positions are specificed in bytes, and point to the
23 * first "clean" entry in the ring -- ie the next entry we use for whatever
24 * purpose.
25 */
27 /* The Typhoon basic ring
28 * ringBase: where this ring lives (our virtual address)
29 * lastWrite: the next entry we'll use
30 */
31 struct basic_ring {
32 u8 *ringBase;
33 u32 lastWrite;
34 };
36 /* The Typoon transmit ring -- same as a basic ring, plus:
37 * lastRead: where we're at in regard to cleaning up the ring
38 * writeRegister: register to use for writing (different for Hi & Lo rings)
39 */
40 struct transmit_ring {
41 u8 *ringBase;
42 u32 lastWrite;
43 u32 lastRead;
44 int writeRegister;
45 };
47 /* The host<->Typhoon ring index structure
48 * This indicates the current positions in the rings
49 *
50 * All values must be in little endian format for the 3XP
51 *
52 * rxHiCleared: entry we've cleared to in the Hi receive ring
53 * rxLoCleared: entry we've cleared to in the Lo receive ring
54 * rxBuffReady: next entry we'll put a free buffer in
55 * respCleared: entry we've cleared to in the response ring
56 *
57 * txLoCleared: entry the NIC has cleared to in the Lo transmit ring
58 * txHiCleared: entry the NIC has cleared to in the Hi transmit ring
59 * rxLoReady: entry the NIC has filled to in the Lo receive ring
60 * rxBuffCleared: entry the NIC has cleared in the free buffer ring
61 * cmdCleared: entry the NIC has cleared in the command ring
62 * respReady: entry the NIC has filled to in the response ring
63 * rxHiReady: entry the NIC has filled to in the Hi receive ring
64 */
65 struct typhoon_indexes {
66 /* The first four are written by the host, and read by the NIC */
67 volatile u32 rxHiCleared;
68 volatile u32 rxLoCleared;
69 volatile u32 rxBuffReady;
70 volatile u32 respCleared;
72 /* The remaining are written by the NIC, and read by the host */
73 volatile u32 txLoCleared;
74 volatile u32 txHiCleared;
75 volatile u32 rxLoReady;
76 volatile u32 rxBuffCleared;
77 volatile u32 cmdCleared;
78 volatile u32 respReady;
79 volatile u32 rxHiReady;
80 } __attribute__ ((packed));
82 /* The host<->Typhoon interface
83 * Our means of communicating where things are
84 *
85 * All values must be in little endian format for the 3XP
86 *
87 * ringIndex: 64 bit bus address of the index structure
88 * txLoAddr: 64 bit bus address of the Lo transmit ring
89 * txLoSize: size (in bytes) of the Lo transmit ring
90 * txHi*: as above for the Hi priority transmit ring
91 * rxLo*: as above for the Lo priority receive ring
92 * rxBuff*: as above for the free buffer ring
93 * cmd*: as above for the command ring
94 * resp*: as above for the response ring
95 * zeroAddr: 64 bit bus address of a zero word (for DMA)
96 * rxHi*: as above for the Hi Priority receive ring
97 *
98 * While there is room for 64 bit addresses, current versions of the 3XP
99 * only do 32 bit addresses, so the *Hi for each of the above will always
100 * be zero.
101 */
102 struct typhoon_interface {
103 u32 ringIndex;
104 u32 ringIndexHi;
105 u32 txLoAddr;
106 u32 txLoAddrHi;
107 u32 txLoSize;
108 u32 txHiAddr;
109 u32 txHiAddrHi;
110 u32 txHiSize;
111 u32 rxLoAddr;
112 u32 rxLoAddrHi;
113 u32 rxLoSize;
114 u32 rxBuffAddr;
115 u32 rxBuffAddrHi;
116 u32 rxBuffSize;
117 u32 cmdAddr;
118 u32 cmdAddrHi;
119 u32 cmdSize;
120 u32 respAddr;
121 u32 respAddrHi;
122 u32 respSize;
123 u32 zeroAddr;
124 u32 zeroAddrHi;
125 u32 rxHiAddr;
126 u32 rxHiAddrHi;
127 u32 rxHiSize;
128 } __attribute__ ((packed));
130 /* The Typhoon transmit/fragment descriptor
131 *
132 * A packet is described by a packet descriptor, followed by option descriptors,
133 * if any, then one or more fragment descriptors.
134 *
135 * Packet descriptor:
136 * flags: Descriptor type
137 * len:i zero, or length of this packet
138 * addr*: 8 bytes of opaque data to the firmware -- for skb pointer
139 * processFlags: Determine offload tasks to perform on this packet.
140 *
141 * Fragment descriptor:
142 * flags: Descriptor type
143 * len:i length of this fragment
144 * addr: low bytes of DMA address for this part of the packet
145 * addrHi: hi bytes of DMA address for this part of the packet
146 * processFlags: must be zero
147 *
148 * TYPHOON_DESC_VALID is not mentioned in their docs, but their Linux
149 * driver uses it.
150 */
151 struct tx_desc {
152 u8 flags;
153 #define TYPHOON_TYPE_MASK 0x07
154 #define TYPHOON_FRAG_DESC 0x00
155 #define TYPHOON_TX_DESC 0x01
156 #define TYPHOON_CMD_DESC 0x02
157 #define TYPHOON_OPT_DESC 0x03
158 #define TYPHOON_RX_DESC 0x04
159 #define TYPHOON_RESP_DESC 0x05
160 #define TYPHOON_OPT_TYPE_MASK 0xf0
161 #define TYPHOON_OPT_IPSEC 0x00
162 #define TYPHOON_OPT_TCP_SEG 0x10
163 #define TYPHOON_CMD_RESPOND 0x40
164 #define TYPHOON_RESP_ERROR 0x40
165 #define TYPHOON_RX_ERROR 0x40
166 #define TYPHOON_DESC_VALID 0x80
167 u8 numDesc;
168 u16 len;
169 u32 addr;
170 u32 addrHi;
171 u32 processFlags;
172 #define TYPHOON_TX_PF_NO_CRC __constant_cpu_to_le32(0x00000001)
173 #define TYPHOON_TX_PF_IP_CHKSUM __constant_cpu_to_le32(0x00000002)
174 #define TYPHOON_TX_PF_TCP_CHKSUM __constant_cpu_to_le32(0x00000004)
175 #define TYPHOON_TX_PF_TCP_SEGMENT __constant_cpu_to_le32(0x00000008)
176 #define TYPHOON_TX_PF_INSERT_VLAN __constant_cpu_to_le32(0x00000010)
177 #define TYPHOON_TX_PF_IPSEC __constant_cpu_to_le32(0x00000020)
178 #define TYPHOON_TX_PF_VLAN_PRIORITY __constant_cpu_to_le32(0x00000040)
179 #define TYPHOON_TX_PF_UDP_CHKSUM __constant_cpu_to_le32(0x00000080)
180 #define TYPHOON_TX_PF_PAD_FRAME __constant_cpu_to_le32(0x00000100)
181 #define TYPHOON_TX_PF_RESERVED __constant_cpu_to_le32(0x00000e00)
182 #define TYPHOON_TX_PF_VLAN_MASK __constant_cpu_to_le32(0x0ffff000)
183 #define TYPHOON_TX_PF_INTERNAL __constant_cpu_to_le32(0xf0000000)
184 #define TYPHOON_TX_PF_VLAN_TAG_SHIFT 12
185 } __attribute__ ((packed));
187 /* The TCP Segmentation offload option descriptor
188 *
189 * flags: descriptor type
190 * numDesc: must be 1
191 * mss_flags: bits 0-11 (little endian) are MSS, 12 is first TSO descriptor
192 * 13 is list TSO descriptor, set both if only one TSO
193 * respAddrLo: low bytes of address of the bytesTx field of this descriptor
194 * bytesTx: total number of bytes in this TSO request
195 * status: 0 on completion
196 */
197 struct tcpopt_desc {
198 u8 flags;
199 u8 numDesc;
200 u16 mss_flags;
201 #define TYPHOON_TSO_FIRST __constant_cpu_to_le16(0x1000)
202 #define TYPHOON_TSO_LAST __constant_cpu_to_le16(0x2000)
203 u32 respAddrLo;
204 u32 bytesTx;
205 u32 status;
206 } __attribute__ ((packed));
208 /* The IPSEC Offload descriptor
209 *
210 * flags: descriptor type
211 * numDesc: must be 1
212 * ipsecFlags: bit 0: 0 -- generate IV, 1 -- use supplied IV
213 * sa1, sa2: Security Association IDs for this packet
214 * reserved: set to 0
215 */
216 struct ipsec_desc {
217 u8 flags;
218 u8 numDesc;
219 u16 ipsecFlags;
220 #define TYPHOON_IPSEC_GEN_IV __constant_cpu_to_le16(0x0000)
221 #define TYPHOON_IPSEC_USE_IV __constant_cpu_to_le16(0x0001)
222 u32 sa1;
223 u32 sa2;
224 u32 reserved;
225 } __attribute__ ((packed));
227 /* The Typhoon receive descriptor (Updated by NIC)
228 *
229 * flags: Descriptor type, error indication
230 * numDesc: Always zero
231 * frameLen: the size of the packet received
232 * addr: low 32 bytes of the virtual addr passed in for this buffer
233 * addrHi: high 32 bytes of the virtual addr passed in for this buffer
234 * rxStatus: Error if set in flags, otherwise result of offload processing
235 * filterResults: results of filtering on packet, not used
236 * ipsecResults: Results of IPSEC processing
237 * vlanTag: the 801.2q TCI from the packet
238 */
239 struct rx_desc {
240 u8 flags;
241 u8 numDesc;
242 u16 frameLen;
243 u32 addr;
244 u32 addrHi;
245 u32 rxStatus;
246 #define TYPHOON_RX_ERR_INTERNAL __constant_cpu_to_le32(0x00000000)
247 #define TYPHOON_RX_ERR_FIFO_UNDERRUN __constant_cpu_to_le32(0x00000001)
248 #define TYPHOON_RX_ERR_BAD_SSD __constant_cpu_to_le32(0x00000002)
249 #define TYPHOON_RX_ERR_RUNT __constant_cpu_to_le32(0x00000003)
250 #define TYPHOON_RX_ERR_CRC __constant_cpu_to_le32(0x00000004)
251 #define TYPHOON_RX_ERR_OVERSIZE __constant_cpu_to_le32(0x00000005)
252 #define TYPHOON_RX_ERR_ALIGN __constant_cpu_to_le32(0x00000006)
253 #define TYPHOON_RX_ERR_DRIBBLE __constant_cpu_to_le32(0x00000007)
254 #define TYPHOON_RX_PROTO_MASK __constant_cpu_to_le32(0x00000003)
255 #define TYPHOON_RX_PROTO_UNKNOWN __constant_cpu_to_le32(0x00000000)
256 #define TYPHOON_RX_PROTO_IP __constant_cpu_to_le32(0x00000001)
257 #define TYPHOON_RX_PROTO_IPX __constant_cpu_to_le32(0x00000002)
258 #define TYPHOON_RX_VLAN __constant_cpu_to_le32(0x00000004)
259 #define TYPHOON_RX_IP_FRAG __constant_cpu_to_le32(0x00000008)
260 #define TYPHOON_RX_IPSEC __constant_cpu_to_le32(0x00000010)
261 #define TYPHOON_RX_IP_CHK_FAIL __constant_cpu_to_le32(0x00000020)
262 #define TYPHOON_RX_TCP_CHK_FAIL __constant_cpu_to_le32(0x00000040)
263 #define TYPHOON_RX_UDP_CHK_FAIL __constant_cpu_to_le32(0x00000080)
264 #define TYPHOON_RX_IP_CHK_GOOD __constant_cpu_to_le32(0x00000100)
265 #define TYPHOON_RX_TCP_CHK_GOOD __constant_cpu_to_le32(0x00000200)
266 #define TYPHOON_RX_UDP_CHK_GOOD __constant_cpu_to_le32(0x00000400)
267 u16 filterResults;
268 #define TYPHOON_RX_FILTER_MASK __constant_cpu_to_le16(0x7fff)
269 #define TYPHOON_RX_FILTERED __constant_cpu_to_le16(0x8000)
270 u16 ipsecResults;
271 #define TYPHOON_RX_OUTER_AH_GOOD __constant_cpu_to_le16(0x0001)
272 #define TYPHOON_RX_OUTER_ESP_GOOD __constant_cpu_to_le16(0x0002)
273 #define TYPHOON_RX_INNER_AH_GOOD __constant_cpu_to_le16(0x0004)
274 #define TYPHOON_RX_INNER_ESP_GOOD __constant_cpu_to_le16(0x0008)
275 #define TYPHOON_RX_OUTER_AH_FAIL __constant_cpu_to_le16(0x0010)
276 #define TYPHOON_RX_OUTER_ESP_FAIL __constant_cpu_to_le16(0x0020)
277 #define TYPHOON_RX_INNER_AH_FAIL __constant_cpu_to_le16(0x0040)
278 #define TYPHOON_RX_INNER_ESP_FAIL __constant_cpu_to_le16(0x0080)
279 #define TYPHOON_RX_UNKNOWN_SA __constant_cpu_to_le16(0x0100)
280 #define TYPHOON_RX_ESP_FORMAT_ERR __constant_cpu_to_le16(0x0200)
281 u32 vlanTag;
282 } __attribute__ ((packed));
284 /* The Typhoon free buffer descriptor, used to give a buffer to the NIC
285 *
286 * physAddr: low 32 bits of the bus address of the buffer
287 * physAddrHi: high 32 bits of the bus address of the buffer, always zero
288 * virtAddr: low 32 bits of the skb address
289 * virtAddrHi: high 32 bits of the skb address, always zero
290 *
291 * the virt* address is basically two 32 bit cookies, just passed back
292 * from the NIC
293 */
294 struct rx_free {
295 u32 physAddr;
296 u32 physAddrHi;
297 u32 virtAddr;
298 u32 virtAddrHi;
299 } __attribute__ ((packed));
301 /* The Typhoon command descriptor, used for commands and responses
302 *
303 * flags: descriptor type
304 * numDesc: number of descriptors following in this command/response,
305 * ie, zero for a one descriptor command
306 * cmd: the command
307 * seqNo: sequence number (unused)
308 * parm1: use varies by command
309 * parm2: use varies by command
310 * parm3: use varies by command
311 */
312 struct cmd_desc {
313 u8 flags;
314 u8 numDesc;
315 u16 cmd;
316 #define TYPHOON_CMD_TX_ENABLE __constant_cpu_to_le16(0x0001)
317 #define TYPHOON_CMD_TX_DISABLE __constant_cpu_to_le16(0x0002)
318 #define TYPHOON_CMD_RX_ENABLE __constant_cpu_to_le16(0x0003)
319 #define TYPHOON_CMD_RX_DISABLE __constant_cpu_to_le16(0x0004)
320 #define TYPHOON_CMD_SET_RX_FILTER __constant_cpu_to_le16(0x0005)
321 #define TYPHOON_CMD_READ_STATS __constant_cpu_to_le16(0x0007)
322 #define TYPHOON_CMD_XCVR_SELECT __constant_cpu_to_le16(0x0013)
323 #define TYPHOON_CMD_SET_MAX_PKT_SIZE __constant_cpu_to_le16(0x001a)
324 #define TYPHOON_CMD_READ_MEDIA_STATUS __constant_cpu_to_le16(0x001b)
325 #define TYPHOON_CMD_GOTO_SLEEP __constant_cpu_to_le16(0x0023)
326 #define TYPHOON_CMD_SET_MULTICAST_HASH __constant_cpu_to_le16(0x0025)
327 #define TYPHOON_CMD_SET_MAC_ADDRESS __constant_cpu_to_le16(0x0026)
328 #define TYPHOON_CMD_READ_MAC_ADDRESS __constant_cpu_to_le16(0x0027)
329 #define TYPHOON_CMD_VLAN_TYPE_WRITE __constant_cpu_to_le16(0x002b)
330 #define TYPHOON_CMD_CREATE_SA __constant_cpu_to_le16(0x0034)
331 #define TYPHOON_CMD_DELETE_SA __constant_cpu_to_le16(0x0035)
332 #define TYPHOON_CMD_READ_VERSIONS __constant_cpu_to_le16(0x0043)
333 #define TYPHOON_CMD_IRQ_COALESCE_CTRL __constant_cpu_to_le16(0x0045)
334 #define TYPHOON_CMD_ENABLE_WAKE_EVENTS __constant_cpu_to_le16(0x0049)
335 #define TYPHOON_CMD_SET_OFFLOAD_TASKS __constant_cpu_to_le16(0x004f)
336 #define TYPHOON_CMD_HELLO_RESP __constant_cpu_to_le16(0x0057)
337 #define TYPHOON_CMD_HALT __constant_cpu_to_le16(0x005d)
338 #define TYPHOON_CMD_READ_IPSEC_INFO __constant_cpu_to_le16(0x005e)
339 #define TYPHOON_CMD_GET_IPSEC_ENABLE __constant_cpu_to_le16(0x0067)
340 #define TYPHOON_CMD_GET_CMD_LVL __constant_cpu_to_le16(0x0069)
341 u16 seqNo;
342 u16 parm1;
343 u32 parm2;
344 u32 parm3;
345 } __attribute__ ((packed));
347 /* The Typhoon response descriptor, see command descriptor for details
348 */
349 struct resp_desc {
350 u8 flags;
351 u8 numDesc;
352 u16 cmd;
353 u16 seqNo;
354 u16 parm1;
355 u32 parm2;
356 u32 parm3;
357 } __attribute__ ((packed));
359 #define INIT_COMMAND_NO_RESPONSE(x, command) \
360 do { struct cmd_desc *_ptr = (x); \
361 memset(_ptr, 0, sizeof(struct cmd_desc)); \
362 _ptr->flags = TYPHOON_CMD_DESC | TYPHOON_DESC_VALID; \
363 _ptr->cmd = command; \
364 } while(0)
366 /* We set seqNo to 1 if we're expecting a response from this command */
367 #define INIT_COMMAND_WITH_RESPONSE(x, command) \
368 do { struct cmd_desc *_ptr = (x); \
369 memset(_ptr, 0, sizeof(struct cmd_desc)); \
370 _ptr->flags = TYPHOON_CMD_RESPOND | TYPHOON_CMD_DESC; \
371 _ptr->flags |= TYPHOON_DESC_VALID; \
372 _ptr->cmd = command; \
373 _ptr->seqNo = 1; \
374 } while(0)
376 /* TYPHOON_CMD_SET_RX_FILTER filter bits (cmd.parm1)
377 */
378 #define TYPHOON_RX_FILTER_DIRECTED __constant_cpu_to_le16(0x0001)
379 #define TYPHOON_RX_FILTER_ALL_MCAST __constant_cpu_to_le16(0x0002)
380 #define TYPHOON_RX_FILTER_BROADCAST __constant_cpu_to_le16(0x0004)
381 #define TYPHOON_RX_FILTER_PROMISCOUS __constant_cpu_to_le16(0x0008)
382 #define TYPHOON_RX_FILTER_MCAST_HASH __constant_cpu_to_le16(0x0010)
384 /* TYPHOON_CMD_READ_STATS response format
385 */
386 struct stats_resp {
387 u8 flags;
388 u8 numDesc;
389 u16 cmd;
390 u16 seqNo;
391 u16 unused;
392 u32 txPackets;
393 u64 txBytes;
394 u32 txDeferred;
395 u32 txLateCollisions;
396 u32 txCollisions;
397 u32 txCarrierLost;
398 u32 txMultipleCollisions;
399 u32 txExcessiveCollisions;
400 u32 txFifoUnderruns;
401 u32 txMulticastTxOverflows;
402 u32 txFiltered;
403 u32 rxPacketsGood;
404 u64 rxBytesGood;
405 u32 rxFifoOverruns;
406 u32 BadSSD;
407 u32 rxCrcErrors;
408 u32 rxOversized;
409 u32 rxBroadcast;
410 u32 rxMulticast;
411 u32 rxOverflow;
412 u32 rxFiltered;
413 u32 linkStatus;
414 #define TYPHOON_LINK_STAT_MASK __constant_cpu_to_le32(0x00000001)
415 #define TYPHOON_LINK_GOOD __constant_cpu_to_le32(0x00000001)
416 #define TYPHOON_LINK_BAD __constant_cpu_to_le32(0x00000000)
417 #define TYPHOON_LINK_SPEED_MASK __constant_cpu_to_le32(0x00000002)
418 #define TYPHOON_LINK_100MBPS __constant_cpu_to_le32(0x00000002)
419 #define TYPHOON_LINK_10MBPS __constant_cpu_to_le32(0x00000000)
420 #define TYPHOON_LINK_DUPLEX_MASK __constant_cpu_to_le32(0x00000004)
421 #define TYPHOON_LINK_FULL_DUPLEX __constant_cpu_to_le32(0x00000004)
422 #define TYPHOON_LINK_HALF_DUPLEX __constant_cpu_to_le32(0x00000000)
423 u32 unused2;
424 u32 unused3;
425 } __attribute__ ((packed));
427 /* TYPHOON_CMD_XCVR_SELECT xcvr values (resp.parm1)
428 */
429 #define TYPHOON_XCVR_10HALF __constant_cpu_to_le16(0x0000)
430 #define TYPHOON_XCVR_10FULL __constant_cpu_to_le16(0x0001)
431 #define TYPHOON_XCVR_100HALF __constant_cpu_to_le16(0x0002)
432 #define TYPHOON_XCVR_100FULL __constant_cpu_to_le16(0x0003)
433 #define TYPHOON_XCVR_AUTONEG __constant_cpu_to_le16(0x0004)
435 /* TYPHOON_CMD_READ_MEDIA_STATUS (resp.parm1)
436 */
437 #define TYPHOON_MEDIA_STAT_CRC_STRIP_DISABLE __constant_cpu_to_le16(0x0004)
438 #define TYPHOON_MEDIA_STAT_COLLISION_DETECT __constant_cpu_to_le16(0x0010)
439 #define TYPHOON_MEDIA_STAT_CARRIER_SENSE __constant_cpu_to_le16(0x0020)
440 #define TYPHOON_MEDIA_STAT_POLARITY_REV __constant_cpu_to_le16(0x0400)
441 #define TYPHOON_MEDIA_STAT_NO_LINK __constant_cpu_to_le16(0x0800)
443 /* TYPHOON_CMD_SET_MULTICAST_HASH enable values (cmd.parm1)
444 */
445 #define TYPHOON_MCAST_HASH_DISABLE __constant_cpu_to_le16(0x0000)
446 #define TYPHOON_MCAST_HASH_ENABLE __constant_cpu_to_le16(0x0001)
447 #define TYPHOON_MCAST_HASH_SET __constant_cpu_to_le16(0x0002)
449 /* TYPHOON_CMD_CREATE_SA descriptor and settings
450 */
451 struct sa_descriptor {
452 u8 flags;
453 u8 numDesc;
454 u16 cmd;
455 u16 seqNo;
456 u16 mode;
457 #define TYPHOON_SA_MODE_NULL __constant_cpu_to_le16(0x0000)
458 #define TYPHOON_SA_MODE_AH __constant_cpu_to_le16(0x0001)
459 #define TYPHOON_SA_MODE_ESP __constant_cpu_to_le16(0x0002)
460 u8 hashFlags;
461 #define TYPHOON_SA_HASH_ENABLE 0x01
462 #define TYPHOON_SA_HASH_SHA1 0x02
463 #define TYPHOON_SA_HASH_MD5 0x04
464 u8 direction;
465 #define TYPHOON_SA_DIR_RX 0x00
466 #define TYPHOON_SA_DIR_TX 0x01
467 u8 encryptionFlags;
468 #define TYPHOON_SA_ENCRYPT_ENABLE 0x01
469 #define TYPHOON_SA_ENCRYPT_DES 0x02
470 #define TYPHOON_SA_ENCRYPT_3DES 0x00
471 #define TYPHOON_SA_ENCRYPT_3DES_2KEY 0x00
472 #define TYPHOON_SA_ENCRYPT_3DES_3KEY 0x04
473 #define TYPHOON_SA_ENCRYPT_CBC 0x08
474 #define TYPHOON_SA_ENCRYPT_ECB 0x00
475 u8 specifyIndex;
476 #define TYPHOON_SA_SPECIFY_INDEX 0x01
477 #define TYPHOON_SA_GENERATE_INDEX 0x00
478 u32 SPI;
479 u32 destAddr;
480 u32 destMask;
481 u8 integKey[20];
482 u8 confKey[24];
483 u32 index;
484 u32 unused;
485 u32 unused2;
486 } __attribute__ ((packed));
488 /* TYPHOON_CMD_SET_OFFLOAD_TASKS bits (cmd.parm2 (Tx) & cmd.parm3 (Rx))
489 * This is all for IPv4.
490 */
491 #define TYPHOON_OFFLOAD_TCP_CHKSUM __constant_cpu_to_le32(0x00000002)
492 #define TYPHOON_OFFLOAD_UDP_CHKSUM __constant_cpu_to_le32(0x00000004)
493 #define TYPHOON_OFFLOAD_IP_CHKSUM __constant_cpu_to_le32(0x00000008)
494 #define TYPHOON_OFFLOAD_IPSEC __constant_cpu_to_le32(0x00000010)
495 #define TYPHOON_OFFLOAD_BCAST_THROTTLE __constant_cpu_to_le32(0x00000020)
496 #define TYPHOON_OFFLOAD_DHCP_PREVENT __constant_cpu_to_le32(0x00000040)
497 #define TYPHOON_OFFLOAD_VLAN __constant_cpu_to_le32(0x00000080)
498 #define TYPHOON_OFFLOAD_FILTERING __constant_cpu_to_le32(0x00000100)
499 #define TYPHOON_OFFLOAD_TCP_SEGMENT __constant_cpu_to_le32(0x00000200)
501 /* TYPHOON_CMD_ENABLE_WAKE_EVENTS bits (cmd.parm1)
502 */
503 #define TYPHOON_WAKE_MAGIC_PKT __constant_cpu_to_le16(0x01)
504 #define TYPHOON_WAKE_LINK_EVENT __constant_cpu_to_le16(0x02)
505 #define TYPHOON_WAKE_ICMP_ECHO __constant_cpu_to_le16(0x04)
506 #define TYPHOON_WAKE_ARP __constant_cpu_to_le16(0x08)
508 /* These are used to load the firmware image on the NIC
509 */
510 struct typhoon_file_header {
511 u8 tag[8];
512 u32 version;
513 u32 numSections;
514 u32 startAddr;
515 u32 hmacDigest[5];
516 } __attribute__ ((packed));
518 struct typhoon_section_header {
519 u32 len;
520 u16 checksum;
521 u16 reserved;
522 u32 startAddr;
523 } __attribute__ ((packed));
525 /* The Typhoon Register offsets
526 */
527 #define TYPHOON_REG_SOFT_RESET 0x00
528 #define TYPHOON_REG_INTR_STATUS 0x04
529 #define TYPHOON_REG_INTR_ENABLE 0x08
530 #define TYPHOON_REG_INTR_MASK 0x0c
531 #define TYPHOON_REG_SELF_INTERRUPT 0x10
532 #define TYPHOON_REG_HOST2ARM7 0x14
533 #define TYPHOON_REG_HOST2ARM6 0x18
534 #define TYPHOON_REG_HOST2ARM5 0x1c
535 #define TYPHOON_REG_HOST2ARM4 0x20
536 #define TYPHOON_REG_HOST2ARM3 0x24
537 #define TYPHOON_REG_HOST2ARM2 0x28
538 #define TYPHOON_REG_HOST2ARM1 0x2c
539 #define TYPHOON_REG_HOST2ARM0 0x30
540 #define TYPHOON_REG_ARM2HOST3 0x34
541 #define TYPHOON_REG_ARM2HOST2 0x38
542 #define TYPHOON_REG_ARM2HOST1 0x3c
543 #define TYPHOON_REG_ARM2HOST0 0x40
545 #define TYPHOON_REG_BOOT_DATA_LO TYPHOON_REG_HOST2ARM5
546 #define TYPHOON_REG_BOOT_DATA_HI TYPHOON_REG_HOST2ARM4
547 #define TYPHOON_REG_BOOT_DEST_ADDR TYPHOON_REG_HOST2ARM3
548 #define TYPHOON_REG_BOOT_CHECKSUM TYPHOON_REG_HOST2ARM2
549 #define TYPHOON_REG_BOOT_LENGTH TYPHOON_REG_HOST2ARM1
551 #define TYPHOON_REG_DOWNLOAD_BOOT_ADDR TYPHOON_REG_HOST2ARM1
552 #define TYPHOON_REG_DOWNLOAD_HMAC_0 TYPHOON_REG_HOST2ARM2
553 #define TYPHOON_REG_DOWNLOAD_HMAC_1 TYPHOON_REG_HOST2ARM3
554 #define TYPHOON_REG_DOWNLOAD_HMAC_2 TYPHOON_REG_HOST2ARM4
555 #define TYPHOON_REG_DOWNLOAD_HMAC_3 TYPHOON_REG_HOST2ARM5
556 #define TYPHOON_REG_DOWNLOAD_HMAC_4 TYPHOON_REG_HOST2ARM6
558 #define TYPHOON_REG_BOOT_RECORD_ADDR_HI TYPHOON_REG_HOST2ARM2
559 #define TYPHOON_REG_BOOT_RECORD_ADDR_LO TYPHOON_REG_HOST2ARM1
561 #define TYPHOON_REG_TX_LO_READY TYPHOON_REG_HOST2ARM3
562 #define TYPHOON_REG_CMD_READY TYPHOON_REG_HOST2ARM2
563 #define TYPHOON_REG_TX_HI_READY TYPHOON_REG_HOST2ARM1
565 #define TYPHOON_REG_COMMAND TYPHOON_REG_HOST2ARM0
566 #define TYPHOON_REG_HEARTBEAT TYPHOON_REG_ARM2HOST3
567 #define TYPHOON_REG_STATUS TYPHOON_REG_ARM2HOST0
569 /* 3XP Reset values (TYPHOON_REG_SOFT_RESET)
570 */
571 #define TYPHOON_RESET_ALL 0x7f
572 #define TYPHOON_RESET_NONE 0x00
574 /* 3XP irq bits (TYPHOON_REG_INTR{STATUS,ENABLE,MASK})
575 *
576 * Some of these came from OpenBSD, as the 3Com docs have it wrong
577 * (INTR_SELF) or don't list it at all (INTR_*_ABORT)
578 *
579 * Enabling irqs on the Heartbeat reg (ArmToHost3) gets you an irq
580 * about every 8ms, so don't do it.
581 */
582 #define TYPHOON_INTR_HOST_INT 0x00000001
583 #define TYPHOON_INTR_ARM2HOST0 0x00000002
584 #define TYPHOON_INTR_ARM2HOST1 0x00000004
585 #define TYPHOON_INTR_ARM2HOST2 0x00000008
586 #define TYPHOON_INTR_ARM2HOST3 0x00000010
587 #define TYPHOON_INTR_DMA0 0x00000020
588 #define TYPHOON_INTR_DMA1 0x00000040
589 #define TYPHOON_INTR_DMA2 0x00000080
590 #define TYPHOON_INTR_DMA3 0x00000100
591 #define TYPHOON_INTR_MASTER_ABORT 0x00000200
592 #define TYPHOON_INTR_TARGET_ABORT 0x00000400
593 #define TYPHOON_INTR_SELF 0x00000800
594 #define TYPHOON_INTR_RESERVED 0xfffff000
596 #define TYPHOON_INTR_BOOTCMD TYPHOON_INTR_ARM2HOST0
598 #define TYPHOON_INTR_ENABLE_ALL 0xffffffef
599 #define TYPHOON_INTR_ALL 0xffffffff
600 #define TYPHOON_INTR_NONE 0x00000000
602 /* The commands for the 3XP chip (TYPHOON_REG_COMMAND)
603 */
604 #define TYPHOON_BOOTCMD_BOOT 0x00
605 #define TYPHOON_BOOTCMD_WAKEUP 0xfa
606 #define TYPHOON_BOOTCMD_DNLD_COMPLETE 0xfb
607 #define TYPHOON_BOOTCMD_SEG_AVAILABLE 0xfc
608 #define TYPHOON_BOOTCMD_RUNTIME_IMAGE 0xfd
609 #define TYPHOON_BOOTCMD_REG_BOOT_RECORD 0xff
611 /* 3XP Status values (TYPHOON_REG_STATUS)
612 */
613 #define TYPHOON_STATUS_WAITING_FOR_BOOT 0x07
614 #define TYPHOON_STATUS_SECOND_INIT 0x08
615 #define TYPHOON_STATUS_RUNNING 0x09
616 #define TYPHOON_STATUS_WAITING_FOR_HOST 0x0d
617 #define TYPHOON_STATUS_WAITING_FOR_SEGMENT 0x10
618 #define TYPHOON_STATUS_SLEEPING 0x11
619 #define TYPHOON_STATUS_HALTED 0x14