usb-linux: split large xfers

Add support for splitting large transfers into multiple smaller ones.
This is needed for the upcoming EHCI emulation which allows guests
to submit requests up to 20k in size.  The linux kernel allows 16k
max size though.

Based on a patch from David Ahern, see
http://www.mail-archive.com/qemu-devel@nongnu.org/msg30337.html

Cc: David Ahern <daahern@cisco.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
1 file changed
tree: e56818dd1dad77a90dd51a46f23960e298abd46d
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. fsdev/
  9. gdb-xml/
  10. hw/
  11. libcacard/
  12. linux-user/
  13. net/
  14. pc-bios/
  15. QMP/
  16. roms/
  17. scripts/
  18. slirp/
  19. sysconfigs/
  20. target-alpha/
  21. target-arm/
  22. target-cris/
  23. target-i386/
  24. target-lm32/
  25. target-m68k/
  26. target-microblaze/
  27. target-mips/
  28. target-ppc/
  29. target-s390x/
  30. target-sh4/
  31. target-sparc/
  32. target-unicore32/
  33. tcg/
  34. tests/
  35. ui/
  36. .gitignore
  37. .gitmodules
  38. a.out.h
  39. acl.c
  40. acl.h
  41. aes.c
  42. aes.h
  43. aio.c
  44. alpha-dis.c
  45. alpha.ld
  46. arch_init.c
  47. arch_init.h
  48. arm-dis.c
  49. arm-semi.c
  50. arm.ld
  51. async.c
  52. balloon.c
  53. balloon.h
  54. bitmap.c
  55. bitmap.h
  56. bitops.c
  57. bitops.h
  58. block-migration.c
  59. block-migration.h
  60. block.c
  61. block.h
  62. block_int.h
  63. blockdev.c
  64. blockdev.h
  65. bswap.h
  66. bt-host.c
  67. bt-host.h
  68. bt-vhci.c
  69. buffered_file.c
  70. buffered_file.h
  71. cache-utils.c
  72. cache-utils.h
  73. Changelog
  74. check-qdict.c
  75. check-qfloat.c
  76. check-qint.c
  77. check-qjson.c
  78. check-qlist.c
  79. check-qstring.c
  80. cmd.c
  81. cmd.h
  82. CODING_STYLE
  83. compatfd.c
  84. compatfd.h
  85. config.h
  86. configure
  87. console.c
  88. console.h
  89. COPYING
  90. COPYING.LIB
  91. cpu-all.h
  92. cpu-common.h
  93. cpu-defs.h
  94. cpu-exec.c
  95. cpus.c
  96. cpus.h
  97. cris-dis.c
  98. cursor.c
  99. cursor_hidden.xpm
  100. cursor_left_ptr.xpm
  101. cutils.c
  102. def-helper.h
  103. device_tree.c
  104. device_tree.h
  105. dis-asm.h
  106. disas.c
  107. disas.h
  108. dma-helpers.c
  109. dma.h
  110. dyngen-exec.h
  111. elf.h
  112. envlist.c
  113. envlist.h
  114. exec-all.h
  115. exec.c
  116. gdbstub.c
  117. gdbstub.h
  118. gen-icount.h
  119. HACKING
  120. hmp-commands.hx
  121. host-utils.c
  122. host-utils.h
  123. hpet.h
  124. hppa-dis.c
  125. hppa.ld
  126. i386-dis.c
  127. i386.ld
  128. ia64-dis.c
  129. ia64.ld
  130. input.c
  131. iohandler.c
  132. ioport-user.c
  133. ioport.c
  134. ioport.h
  135. iorange.h
  136. iov.c
  137. iov.h
  138. json-lexer.c
  139. json-lexer.h
  140. json-parser.c
  141. json-parser.h
  142. json-streamer.c
  143. json-streamer.h
  144. kvm-all.c
  145. kvm-stub.c
  146. kvm.h
  147. libfdt_env.h
  148. LICENSE
  149. linux-aio.c
  150. m68k-dis.c
  151. m68k-semi.c
  152. m68k.ld
  153. MAINTAINERS
  154. Makefile
  155. Makefile.dis
  156. Makefile.hw
  157. Makefile.objs
  158. Makefile.target
  159. Makefile.user
  160. microblaze-dis.c
  161. migration-exec.c
  162. migration-fd.c
  163. migration-tcp.c
  164. migration-unix.c
  165. migration.c
  166. migration.h
  167. mips-dis.c
  168. mips.ld
  169. module.c
  170. module.h
  171. monitor.c
  172. monitor.h
  173. nbd.c
  174. nbd.h
  175. net.c
  176. net.h
  177. notify.c
  178. notify.h
  179. os-posix.c
  180. os-win32.c
  181. osdep.c
  182. osdep.h
  183. oslib-posix.c
  184. oslib-win32.c
  185. path.c
  186. pci-ids.txt
  187. pflib.c
  188. pflib.h
  189. poison.h
  190. posix-aio-compat.c
  191. ppc-dis.c
  192. ppc.ld
  193. ppc64.ld
  194. qbool.c
  195. qbool.h
  196. qdict-test-data.txt
  197. qdict.c
  198. qdict.h
  199. qemu-aio.h
  200. qemu-barrier.h
  201. qemu-char.c
  202. qemu-char.h
  203. qemu-common.h
  204. qemu-config.c
  205. qemu-config.h
  206. qemu-doc.texi
  207. qemu-error.c
  208. qemu-error.h
  209. qemu-img-cmds.hx
  210. qemu-img.c
  211. qemu-img.texi
  212. qemu-io.c
  213. qemu-lock.h
  214. qemu-log.h
  215. qemu-malloc.c
  216. qemu-nbd.c
  217. qemu-nbd.texi
  218. qemu-objects.h
  219. qemu-option.c
  220. qemu-option.h
  221. qemu-options.h
  222. qemu-options.hx
  223. qemu-os-posix.h
  224. qemu-os-win32.h
  225. qemu-progress.c
  226. qemu-queue.h
  227. qemu-sockets.c
  228. qemu-tech.texi
  229. qemu-thread-posix.c
  230. qemu-thread-posix.h
  231. qemu-thread-win32.c
  232. qemu-thread-win32.h
  233. qemu-thread.h
  234. qemu-timer-common.c
  235. qemu-timer.c
  236. qemu-timer.h
  237. qemu-tool.c
  238. qemu-x509.h
  239. qemu.sasl
  240. qemu_socket.h
  241. qerror.c
  242. qerror.h
  243. qfloat.c
  244. qfloat.h
  245. qint.c
  246. qint.h
  247. qjson.c
  248. qjson.h
  249. qlist.c
  250. qlist.h
  251. qmp-commands.hx
  252. qobject.h
  253. qstring.c
  254. qstring.h
  255. range.h
  256. readline.c
  257. readline.h
  258. README
  259. rules.mak
  260. rwhandler.c
  261. rwhandler.h
  262. s390-dis.c
  263. s390.ld
  264. savevm.c
  265. sh4-dis.c
  266. simpletrace.c
  267. simpletrace.h
  268. softmmu-semi.h
  269. softmmu_defs.h
  270. softmmu_exec.h
  271. softmmu_header.h
  272. softmmu_template.h
  273. sparc-dis.c
  274. sparc.ld
  275. sparc64.ld
  276. spice-qemu-char.c
  277. sysemu.h
  278. targphys.h
  279. tcg-runtime.c
  280. thunk.c
  281. thunk.h
  282. TODO
  283. trace-events
  284. translate-all.c
  285. uboot_image.h
  286. usb-bsd.c
  287. usb-linux.c
  288. usb-stub.c
  289. VERSION
  290. version.rc
  291. vgafont.h
  292. vl.c
  293. x86_64.ld
  294. xen-all.c
  295. xen-mapcache-stub.c
  296. xen-mapcache.c
  297. xen-mapcache.h
  298. xen-stub.c