usb: add pipelining option to usb endpoints

With this patch applied USB drivers can enable pipelining per endpoint.
With pipelining enabled the usb core will continue submitting packets
even when there are still async transfers in flight instead of passing
them on one by one.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 files changed
tree: dac03441220377576b3b7252a19ab6e9d6b37ea2
  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. include/
  12. libcacard/
  13. linux-headers/
  14. linux-user/
  15. net/
  16. pc-bios/
  17. qapi/
  18. qga/
  19. QMP/
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  23. slirp/
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  30. target-m68k/
  31. target-microblaze/
  32. target-mips/
  33. target-ppc/
  34. target-s390x/
  35. target-sh4/
  36. target-sparc/
  37. target-unicore32/
  38. target-xtensa/
  39. tcg/
  40. tests/
  41. trace/
  42. ui/
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  44. .gitmodules
  45. .mailmap
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  53. alpha.ld
  54. arch_init.c
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  59. async.c
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  169. LICENSE
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  176. MAINTAINERS
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  295. range.h
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  298. README
  299. rules.mak
  300. s390-dis.c
  301. s390.ld
  302. savevm.c
  303. sh4-dis.c
  304. softmmu-semi.h
  305. softmmu_defs.h
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  308. softmmu_template.h
  309. sparc-dis.c
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  330. usb-bsd.c
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  335. VERSION
  336. version.rc
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  345. xtensa-semi.c