qemu/qapi
Max Reitz 23dce3873f block/curl: Drop TFTP "support"
Because TFTP does not support byte ranges, it was never usable with our
curl block driver. Since apparently nobody has ever complained loudly
enough for someone to take care of the issue until now, it seems
reasonable to assume that nobody has ever actually used it.

Therefore, it should be safe to just drop it from curl's protocol list.

[Jeff Cody: Below is additional summary pulled, with some rewording,
            from followup emails between Max and Markus, to explain what
            worked and what didn't]

TFTP would sometimes work, to a limited extent, for images <= the curl
"readahead" size, so long as reads started at offset zero.  By default,
that readahead size is 256KB.

Reads starting at a non-zero offset would also have returned data from a
zero offset.  It can become more complicated still, with mixed reads at
zero offset and non-zero offsets, due to data buffering.

In short, TFTP could only have worked before in very specific scenarios
with unrealistic expectations and constraints.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 20161102175539.4375-4-mreitz@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-11-14 22:47:34 -05:00
..
Makefile.objs qapi: rename *qmp-*-visitor* to *qobject-*-visitor* 2016-10-25 16:25:48 +02:00
block-core.json block/curl: Drop TFTP "support" 2016-11-14 22:47:34 -05:00
block.json block: Add qdev ID to DEVICE_TRAY_MOVED 2016-10-07 13:34:22 +02:00
common.json kvm: add support for -machine kernel_irqchip=split 2015-12-17 17:15:40 +01:00
crypto.json crypto: add CTR mode support 2016-10-19 10:09:24 +01:00
event.json qmp event: Refactor QUORUM_REPORT_BAD 2016-03-14 16:46:43 +01:00
introspect.json qapi: Use anonymous bases in QMP flat unions 2016-03-18 10:29:26 +01:00
opts-visitor.c opts-visitor: Favor new visit_free() function 2016-07-06 10:52:04 +02:00
qapi-clone-visitor.c qapi: rename *qmp-*-visitor* to *qobject-*-visitor* 2016-10-25 16:25:48 +02:00
qapi-dealloc-visitor.c qapi: Add new visit_free() function 2016-07-06 10:52:04 +02:00
qapi-util.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qapi-visit-core.c qapi: add trace events for visitor 2016-10-25 13:57:58 +02:00
qmp-dispatch.c qapi: Improve use of qmp/types.h 2016-07-06 10:52:03 +02:00
qmp-event.c qapi: Clean up includes 2016-02-04 17:41:30 +00:00
qmp-registry.c qapi: Support unregistering QMP commands 2016-09-19 17:32:21 +02:00
qobject-input-visitor.c qapi: rename QmpInputVisitor to QObjectInputVisitor 2016-10-25 16:25:54 +02:00
qobject-output-visitor.c qapi: rename QmpOutputVisitor to QObjectOutputVisitor 2016-10-25 16:25:54 +02:00
rocker.json qmp/hmp: add rocker device support 2015-06-12 13:42:17 +01:00
string-input-visitor.c string-input-visitor: Favor new visit_free() function 2016-07-06 10:52:04 +02:00
string-output-visitor.c qapi: Add new visit_complete() function 2016-07-06 10:52:04 +02:00
trace-events qapi: add trace events for visitor 2016-10-25 13:57:58 +02:00
trace.json trace: Add QAPI/QMP interfaces to query and control per-vCPU tracing state 2016-07-18 18:23:12 +01:00