ia64/linux-2.6.18-xen.hg

view drivers/net/starfire_firmware.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 /*
2 * Copyright 2003 Adaptec, Inc.
3 *
4 * Please read the following license before using the Adaptec Software
5 * ("Program"). If you do not agree to the license terms, do not use the
6 * Program:
7 *
8 * You agree to be bound by version 2 of the General Public License ("GPL")
9 * dated June 1991, which can be found at http://www.fsf.org/licenses/gpl.html.
10 * If the link is broken, write to Free Software Foundation, 59 Temple Place,
11 * Boston, Massachusetts 02111-1307.
12 *
13 * BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE IT IS LICENSED "AS IS" AND
14 * THERE IS NO WARRANTY FOR THE PROGRAM, INCLUDING BUT NOT LIMITED TO THE
15 * IMPLIED WARRANTIES OF MERCHANTIBILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * (TO THE EXTENT PERMITTED BY APPLICABLE LAW). USE OF THE PROGRAM IS AT YOUR
17 * OWN RISK. IN NO EVENT WILL ADAPTEC OR ITS LICENSORS BE LIABLE TO YOU FOR
18 * DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
19 * ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM.
20 *
21 */
23 static const u32 firmware_rx[] = {
24 0x010003dc, 0x00000000,
25 0x04000421, 0x00000086,
26 0x80000015, 0x0000180e,
27 0x81000015, 0x00006664,
28 0x1a0040ab, 0x00000b06,
29 0x14200011, 0x00000000,
30 0x14204022, 0x0000aaaa,
31 0x14204022, 0x00000300,
32 0x14204022, 0x00000000,
33 0x1a0040ab, 0x00000b14,
34 0x14200011, 0x00000000,
35 0x83000015, 0x00000002,
36 0x04000021, 0x00000000,
37 0x00000010, 0x00000000,
38 0x04000421, 0x00000087,
39 0x00000010, 0x00000000,
40 0x00000010, 0x00000000,
41 0x00008015, 0x00000000,
42 0x0000003e, 0x00000000,
43 0x00000010, 0x00000000,
44 0x82000015, 0x00004000,
45 0x009e8050, 0x00000000,
46 0x03008015, 0x00000000,
47 0x86008015, 0x00000000,
48 0x82000015, 0x00008000,
49 0x0100001c, 0x00000000,
50 0x000050a0, 0x0000010c,
51 0x4e20d011, 0x00006008,
52 0x1420d012, 0x00004008,
53 0x0000f090, 0x00007000,
54 0x0000c8b0, 0x00003000,
55 0x00004040, 0x00000000,
56 0x00108015, 0x00000000,
57 0x00a2c150, 0x00004000,
58 0x00a400b0, 0x00000014,
59 0x00000020, 0x00000000,
60 0x2500400d, 0x00002525,
61 0x00047220, 0x00003100,
62 0x00934070, 0x00000000,
63 0x00000020, 0x00000000,
64 0x00924460, 0x00000184,
65 0x2b20c011, 0x00000000,
66 0x0000c420, 0x00000540,
67 0x36014018, 0x0000422d,
68 0x14200011, 0x00000000,
69 0x00924460, 0x00000183,
70 0x3200001f, 0x00000034,
71 0x02ac0015, 0x00000002,
72 0x00a60110, 0x00000008,
73 0x42200011, 0x00000000,
74 0x00924060, 0x00000103,
75 0x0000001e, 0x00000000,
76 0x00000020, 0x00000100,
77 0x0000001e, 0x00000000,
78 0x00924460, 0x00000086,
79 0x00004080, 0x00000000,
80 0x0092c070, 0x00000000,
81 0x00924060, 0x00000100,
82 0x0000c890, 0x00005000,
83 0x00a6c110, 0x00000000,
84 0x00b0c090, 0x00000012,
85 0x021c0015, 0x00000000,
86 0x3200001f, 0x00000034,
87 0x00924460, 0x00000510,
88 0x44210011, 0x00000000,
89 0x42000011, 0x00000000,
90 0x83000015, 0x00000040,
91 0x00924460, 0x00000508,
92 0x45014018, 0x00004545,
93 0x00808050, 0x00000000,
94 0x62208012, 0x00000000,
95 0x82000015, 0x00000800,
96 0x15200011, 0x00000000,
97 0x00000010, 0x00000000,
98 0x00000010, 0x00000000,
99 0x00000010, 0x00000000,
100 0x00000010, 0x00000000,
101 0x00000010, 0x00000000,
102 0x80000015, 0x0000eea4,
103 0x81000015, 0x0000005f,
104 0x00000060, 0x00000000,
105 0x00004120, 0x00000000,
106 0x00004a00, 0x00004000,
107 0x00924460, 0x00000190,
108 0x5601401a, 0x00005956,
109 0x14000011, 0x00000000,
110 0x00934050, 0x00000018,
111 0x00930050, 0x00000018,
112 0x3601403a, 0x0000002d,
113 0x000643a9, 0x00000000,
114 0x0000c420, 0x00000140,
115 0x5601401a, 0x00005956,
116 0x14000011, 0x00000000,
117 0x00000010, 0x00000000,
118 0x00000010, 0x00000000,
119 0x000642a9, 0x00000000,
120 0x00024420, 0x00000183,
121 0x5601401a, 0x00005956,
122 0x82000015, 0x00002000,
123 0x15200011, 0x00000000,
124 0x82000015, 0x00000010,
125 0x15200011, 0x00000000,
126 0x82000015, 0x00000010,
127 0x15200011, 0x00000000,
128 }; /* 104 Rx instructions */
129 #define FIRMWARE_RX_SIZE 104
131 static const u32 firmware_tx[] = {
132 0x010003dc, 0x00000000,
133 0x04000421, 0x00000086,
134 0x80000015, 0x0000180e,
135 0x81000015, 0x00006664,
136 0x1a0040ab, 0x00000b06,
137 0x14200011, 0x00000000,
138 0x14204022, 0x0000aaaa,
139 0x14204022, 0x00000300,
140 0x14204022, 0x00000000,
141 0x1a0040ab, 0x00000b14,
142 0x14200011, 0x00000000,
143 0x83000015, 0x00000002,
144 0x04000021, 0x00000000,
145 0x00000010, 0x00000000,
146 0x04000421, 0x00000087,
147 0x00000010, 0x00000000,
148 0x00000010, 0x00000000,
149 0x00008015, 0x00000000,
150 0x0000003e, 0x00000000,
151 0x00000010, 0x00000000,
152 0x82000015, 0x00004000,
153 0x009e8050, 0x00000000,
154 0x03008015, 0x00000000,
155 0x86008015, 0x00000000,
156 0x82000015, 0x00008000,
157 0x0100001c, 0x00000000,
158 0x000050a0, 0x0000010c,
159 0x4e20d011, 0x00006008,
160 0x1420d012, 0x00004008,
161 0x0000f090, 0x00007000,
162 0x0000c8b0, 0x00003000,
163 0x00004040, 0x00000000,
164 0x00108015, 0x00000000,
165 0x00a2c150, 0x00004000,
166 0x00a400b0, 0x00000014,
167 0x00000020, 0x00000000,
168 0x2500400d, 0x00002525,
169 0x00047220, 0x00003100,
170 0x00934070, 0x00000000,
171 0x00000020, 0x00000000,
172 0x00924460, 0x00000184,
173 0x2b20c011, 0x00000000,
174 0x0000c420, 0x00000540,
175 0x36014018, 0x0000422d,
176 0x14200011, 0x00000000,
177 0x00924460, 0x00000183,
178 0x3200001f, 0x00000034,
179 0x02ac0015, 0x00000002,
180 0x00a60110, 0x00000008,
181 0x42200011, 0x00000000,
182 0x00924060, 0x00000103,
183 0x0000001e, 0x00000000,
184 0x00000020, 0x00000100,
185 0x0000001e, 0x00000000,
186 0x00924460, 0x00000086,
187 0x00004080, 0x00000000,
188 0x0092c070, 0x00000000,
189 0x00924060, 0x00000100,
190 0x0000c890, 0x00005000,
191 0x00a6c110, 0x00000000,
192 0x00b0c090, 0x00000012,
193 0x021c0015, 0x00000000,
194 0x3200001f, 0x00000034,
195 0x00924460, 0x00000510,
196 0x44210011, 0x00000000,
197 0x42000011, 0x00000000,
198 0x83000015, 0x00000040,
199 0x00924460, 0x00000508,
200 0x45014018, 0x00004545,
201 0x00808050, 0x00000000,
202 0x62208012, 0x00000000,
203 0x82000015, 0x00000800,
204 0x15200011, 0x00000000,
205 0x00000010, 0x00000000,
206 0x00000010, 0x00000000,
207 0x00000010, 0x00000000,
208 0x00000010, 0x00000000,
209 0x00000010, 0x00000000,
210 0x80000015, 0x0000eea4,
211 0x81000015, 0x0000005f,
212 0x00000060, 0x00000000,
213 0x00004120, 0x00000000,
214 0x00004a00, 0x00004000,
215 0x00924460, 0x00000190,
216 0x5601401a, 0x00005956,
217 0x14000011, 0x00000000,
218 0x00934050, 0x00000018,
219 0x00930050, 0x00000018,
220 0x3601403a, 0x0000002d,
221 0x000643a9, 0x00000000,
222 0x0000c420, 0x00000140,
223 0x5601401a, 0x00005956,
224 0x14000011, 0x00000000,
225 0x00000010, 0x00000000,
226 0x00000010, 0x00000000,
227 0x000642a9, 0x00000000,
228 0x00024420, 0x00000183,
229 0x5601401a, 0x00005956,
230 0x82000015, 0x00002000,
231 0x15200011, 0x00000000,
232 0x82000015, 0x00000010,
233 0x15200011, 0x00000000,
234 0x82000015, 0x00000010,
235 0x15200011, 0x00000000,
236 }; /* 104 Tx instructions */
237 #define FIRMWARE_TX_SIZE 104
238 #if 0
239 static const u32 firmware_wol[] = {
240 0x010003dc, 0x00000000,
241 0x19000421, 0x00000087,
242 0x80000015, 0x00001a1a,
243 0x81000015, 0x00001a1a,
244 0x1a0040ab, 0x00000b06,
245 0x15200011, 0x00000000,
246 0x15204022, 0x0000aaaa,
247 0x15204022, 0x00000300,
248 0x15204022, 0x00000000,
249 0x1a0040ab, 0x00000b15,
250 0x15200011, 0x00000000,
251 0x83000015, 0x00000002,
252 0x04000021, 0x00000000,
253 0x00000010, 0x00000000,
254 0x04000421, 0x00000087,
255 0x00000010, 0x00000000,
256 0x00000010, 0x00000000,
257 0x00008015, 0x00000000,
258 0x0000003e, 0x00000000,
259 0x00000010, 0x00000000,
260 0x00000010, 0x00000000,
261 0x82000015, 0x00004000,
262 0x82000015, 0x00008000,
263 0x0000000c, 0x00000000,
264 0x00000010, 0x00000000,
265 0x00004080, 0x00000100,
266 0x1f20c011, 0x00001122,
267 0x2720f011, 0x00003011,
268 0x19200071, 0x00000000,
269 0x1a200051, 0x00000000,
270 0x00000010, 0x00000000,
271 0x00000010, 0x00000000,
272 0x1d2040a4, 0x00003344,
273 0x1d2040a2, 0x00005566,
274 0x000040a0, 0x00000100,
275 0x00108050, 0x00000001,
276 0x1a208012, 0x00000006,
277 0x82000015, 0x00008080,
278 0x010003dc, 0x00000000,
279 0x1d2040a4, 0x00002233,
280 0x1d2040a4, 0x00004455,
281 0x2d208011, 0x00000005,
282 0x1d2040a4, 0x00006611,
283 0x00108050, 0x00000001,
284 0x27200011, 0x00000000,
285 0x1d2050a4, 0x00006600,
286 0x82000015, 0x00008080,
287 0x010003dc, 0x00000000,
288 0x00000050, 0x00000000,
289 0x1b200031, 0x00000000,
290 0x0000001e, 0x00000000,
291 0x0000001e, 0x00000000,
292 0x0000001e, 0x00000000,
293 0x0000001e, 0x00000000,
294 0x00924460, 0x00000086,
295 0x00004080, 0x00000000,
296 0x0092c070, 0x00000000,
297 0x00924060, 0x00000100,
298 0x0000c890, 0x00005000,
299 0x00a6c110, 0x00000000,
300 0x00b0c090, 0x00000012,
301 0x021c0015, 0x00000000,
302 0x3200001f, 0x00000034,
303 0x00924460, 0x00000510,
304 0x44210011, 0x00000000,
305 0x42000011, 0x00000000,
306 0x83000015, 0x00000040,
307 0x00924460, 0x00000508,
308 0x476a0012, 0x00000100,
309 0x83000015, 0x00000008,
310 0x16200011, 0x00000000,
311 0x001e8050, 0x00000000,
312 0x001e8050, 0x00000000,
313 0x00808050, 0x00000000,
314 0x03008015, 0x00000000,
315 0x62208012, 0x00000000,
316 0x82000015, 0x00000800,
317 0x16200011, 0x00000000,
318 0x80000015, 0x0000eea4,
319 0x81000015, 0x0000005f,
320 0x00000020, 0x00000000,
321 0x00004120, 0x00000000,
322 0x00004a00, 0x00004000,
323 0x00924460, 0x00000190,
324 0x5c01401a, 0x0000595c,
325 0x15000011, 0x00000000,
326 0x00934050, 0x00000018,
327 0x00930050, 0x00000018,
328 0x3601403a, 0x0000002d,
329 0x00064029, 0x00000000,
330 0x0000c420, 0x00000140,
331 0x5c01401a, 0x0000595c,
332 0x15000011, 0x00000000,
333 0x00000010, 0x00000000,
334 0x00000010, 0x00000000,
335 0x00064029, 0x00000000,
336 0x00024420, 0x00000183,
337 0x5c01401a, 0x0000595c,
338 0x82000015, 0x00002000,
339 0x16200011, 0x00000000,
340 0x82000015, 0x00000010,
341 0x16200011, 0x00000000,
342 0x82000015, 0x00000010,
343 0x16200011, 0x00000000,
344 }; /* 104 WoL instructions */
345 #define FIRMWARE_WOL_SIZE 104
346 #endif