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mirror_qemu/tests
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Eric Blake 61cc872456 nbd: Advertise multi-conn for shared read-only connections 
The NBD specification defines NBD_FLAG_CAN_MULTI_CONN, which can be
advertised when the server promises cache consistency between
simultaneous clients (basically, rules that determine what FUA and
flush from one client are able to guarantee for reads from another
client).  When we don't permit simultaneous clients (such as qemu-nbd
without -e), the bit makes no sense; and for writable images, we
probably have a lot more work before we can declare that actions from
one client are cache-consistent with actions from another.  But for
read-only images, where flush isn't changing any data, we might as
well advertise multi-conn support.  What's more, advertisement of the
bit makes it easier for clients to determine if 'qemu-nbd -e' was in
use, where a second connection will succeed rather than hang until the
first client goes away.

This patch affects qemu as server in advertising the bit.  We may want
to consider patches to qemu as client to attempt parallel connections
for higher throughput by spreading the load over those connections
when a server advertises multi-conn, but for now sticking to one
connection per nbd:// BDS is okay.

See also: https://bugzilla.redhat.com/1708300
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190815185024.7010-1-eblake@redhat.com>
[eblake: tweak blockdev-nbd.c to not request shared when writable,
fix iotest 233]
Reviewed-by: John Snow <jsnow@redhat.com>
 		2019-09-05 15:51:55 -05:00
..
acceptance Machine + x86 queue, 2019-09-03 2019-09-04 14:44:54 +01:00
data tests/rebuild-expected-aml.sh: blow out difflist 2019-06-16 16:44:44 -04:00
decode decodetree: Allow !function with no input bits 2019-08-19 08:03:41 -07:00
docker tests/docker: upgrade docker.py to python3 2019-09-02 10:52:22 +01:00
fp softfloat: Support float_round_to_odd more places 2019-02-26 14:08:03 +00:00
guest-debug tests/guest-debug: fix scoping of failcount 2018-11-13 10:47:59 +00:00
image-fuzzer
…
keys
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libqos tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
migration test: Use g_strndup instead of plain strndup 2019-08-21 10:27:13 +02:00
multiboot tests/multiboot: Fix load address of test kernels 2019-07-30 12:25:43 +02:00
perf/block/qcow2 tests/perf: Test lseek influence on qcow2 block-status 2019-06-04 15:20:41 +02:00
qapi-schema tests/qapi-schema: Error case tests for features in structs 2019-06-12 18:35:26 +02:00
qemu-iotests nbd: Advertise multi-conn for shared read-only connections 2019-09-05 15:51:55 -05:00
rocker
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tcg target/mips: tests/tcg: Fix target configurations for MSA tests 2019-08-19 19:53:37 +02:00
uefi-test-tools Clean up a few header guard symbols 2019-06-12 13:20:20 +02:00
vm Makefile: Rename the 'vm-test' target as 'vm-help' 2019-07-04 19:23:07 +01:00
vmstate-static-checker-data
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.gitignore tests/.gitignore: ignore test-qapi-emit-events.[ch] for in-tree builds 2019-03-14 16:02:13 +01:00
Makefile.include configure: more resilient Python version capture 2019-08-27 16:57:24 -03:00
ac97-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
acpi-utils.c tests: acpi: add acpi_find_rsdp_address_uefi() helper 2019-05-20 18:40:02 -04:00
acpi-utils.h tests: acpi: add acpi_find_rsdp_address_uefi() helper 2019-05-20 18:40:02 -04:00
ahci-test.c ahci-test: Drop dependence on global_qtest 2019-03-12 07:40:59 +01:00
atomic64-bench.c tests: use g_usleep instead of rem = sleep(time) 2019-01-14 14:52:30 +00:00
atomic_add-bench.c tests: use g_usleep instead of rem = sleep(time) 2019-01-14 14:52:30 +00:00
benchmark-crypto-cipher.c crypto: expand algorithm coverage for cipher benchmark 2018-10-24 19:03:37 +01:00
benchmark-crypto-hash.c
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benchmark-crypto-hmac.c
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bios-tables-test-allowed-diff.h q35: update DSDT 2019-06-16 16:44:44 -04:00
bios-tables-test.c tests: acpi: do not skip tests when IASL is not installed 2019-07-12 10:56:26 -04:00
boot-order-test.c tests/boot-order: Make test independent of global_qtest 2019-01-22 05:14:32 +01:00
boot-sector.c
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boot-sector.h
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boot-serial-test.c tests/boot-serial-test: add support for all the PowerNV machines 2019-08-29 09:46:07 +10:00
cdrom-test.c tests/cdrom-test: only include isapc cdrom test when g_test_slow() 2019-02-22 09:32:32 +00:00
check-block-qdict.c tests: fix crumple/recursive leak 2018-08-15 08:12:19 +02:00
check-block.sh tests/check-block: Skip iotests when sanitizers are enabled 2019-09-03 14:56:06 +02:00
check-qdict.c tests: Move qdict-test-data.txt to tests/data/qobject/ 2019-03-07 22:05:54 +01:00
check-qjson.c test: Use g_strndup instead of plain strndup 2019-08-21 10:27:13 +02:00
check-qlist.c
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check-qlit.c
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check-qnull.c
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check-qnum.c
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check-qobject.c qstring: Move qstring_from_substr()'s @end one to the right 2018-07-28 09:09:58 +02:00
check-qom-interface.c qom: make interface types abstract 2018-12-11 15:45:22 -02:00
check-qom-proplist.c tests/qom-proplist: check class properties iterator 2018-10-05 16:27:09 +04:00
check-qstring.c qstring: Move qstring_from_substr()'s @end one to the right 2018-07-28 09:09:58 +02:00
cpu-plug-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
crypto-tls-psk-helpers.c
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crypto-tls-psk-helpers.h Supply missing header guards 2019-06-12 13:20:21 +02:00
crypto-tls-x509-helpers.c tests: call qcrypto_init instead of gnutls_global_init 2018-07-24 17:33:39 +01:00
crypto-tls-x509-helpers.h Supply missing header guards 2019-06-12 13:20:21 +02:00
device-introspect-test.c tests/device-introspect: Use qtest_init() instead of qtest_start() 2019-05-21 10:00:41 +02:00
device-plug-test.c tests/device-plug: Add PHB unplug request test for spapr 2019-02-26 09:21:25 +11:00
display-vga-test.c tests/display-vga: Enable virtio-vga test 2019-01-11 11:45:00 +01:00
drive_del-test.c tests: Set read-zeroes on for null-co driver 2019-08-15 19:23:59 +02:00
ds1338-test.c libqos: i2c: move address into QI2CDevice 2019-06-03 14:03:02 +02:00
e1000-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
e1000e-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
eepro100-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
endianness-test.c tests/endianesss: Make test independent of global_qtest 2019-01-22 05:14:32 +01:00
es1370-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
fdc-test.c tests: Remove (mostly) useless architecture checks 2019-03-06 10:10:36 +01:00
fw_cfg-test.c tests: fw_cfg: add 'splash-time' test case 2019-05-23 14:10:31 +02:00
hd-geo-test.c tests/hd-geo-test: Use qtest_init() instead of qtest_start() 2019-05-21 10:00:46 +02:00
hexloader-test.c tests/hexloader-test: Don't pass -nographic to the QEMU under test 2019-01-22 06:26:32 +01:00
i440fx-test.c tests/libqos: rename qpci_init_pc and qpci_init_spapr functions 2019-03-07 16:50:04 +01:00
i82801b11-test.c
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ide-test.c tests/ide-test: Make test independent of global_qtest 2019-05-08 16:59:28 +02:00
intel-hda-test.c
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io-channel-helpers.c
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io-channel-helpers.h Normalize position of header guard 2019-06-12 13:20:20 +02:00
ioh3420-test.c
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iothread.c
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iothread.h
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ipmi-bt-test.c tests: Remove (mostly) useless architecture checks 2019-03-06 10:10:36 +01:00
ipmi-kcs-test.c tests: Remove (mostly) useless architecture checks 2019-03-06 10:10:36 +01:00
ipoctal232-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
ivshmem-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
libqtest.c tests: add module loading test 2019-08-21 16:29:57 +02:00
libqtest.h tests: add module loading test 2019-08-21 16:29:57 +02:00
m25p80-test.c libqtest: Replace qtest_startf() by qtest_initf() 2018-08-16 08:42:06 +02:00
m48t59-test.c tests: Do not use "\n" in g_test_message() strings 2019-03-07 22:16:22 +01:00
machine-none-test.c tests/machine-none: Test recent MIPS cpus 2019-07-02 14:17:15 +02:00
megasas-test.c tests: Set read-zeroes on for null-co driver 2019-08-15 19:23:59 +02:00
microbit-test.c tests/microbit-test: Add tests for nRF51 NVMC 2019-02-01 15:32:17 +00:00
migration-test.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
modules-test.c tests: fix modules-test with no default machine 2019-09-02 10:52:22 +01:00
ne2000-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
numa-test.c tests/numa-test: Use qtest_init() instead of qtest_start() 2019-05-21 10:00:32 +02:00
nvme-test.c tests: Set read-zeroes on for null-co driver 2019-08-15 19:23:59 +02:00
pca9552-test.c libqos: i2c: move address into QI2CDevice 2019-06-03 14:03:02 +02:00
pci-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
pcnet-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
pflash-cfi02-test.c hw/block/pflash_cfi02: Implement erase suspend/resume 2019-07-02 02:34:55 +02:00
pkix_asn1_tab.c
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pnv-xscom-test.c ppc/pnv: Introduce PowerNV machines with fixed CPU models 2019-08-29 09:45:53 +10:00
prom-env-test.c Suppress test warnings about missing Spectre/Meltdown mitigations with TCG 2019-03-12 16:07:14 +11:00
ptimer-test-stubs.c util/qemu-timer: refactor deadline calculation for external timers 2019-08-20 17:26:21 +02:00
ptimer-test.c util/qemu-timer: refactor deadline calculation for external timers 2019-08-20 17:26:21 +02:00
ptimer-test.h
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pvpanic-test.c tests/pvpanic: Make the pvpanic test independent of global_qtest 2018-12-17 15:36:40 +01:00
pxe-test.c Suppress test warnings about missing Spectre/Meltdown mitigations with TCG 2019-03-12 16:07:14 +11:00
q35-test.c tests/q35-test: Make test independent of global_qtest 2019-05-21 10:00:27 +02:00
qht-bench.c tests: use g_usleep instead of rem = sleep(time) 2019-01-14 14:52:30 +00:00
qmp-cmd-test.c tests/qmp-cmd-test: Use qtest_init() instead of qtest_start() 2019-05-08 16:59:28 +02:00
qmp-test.c tests: Set read-zeroes on for null-co driver 2019-08-15 19:23:59 +02:00
qom-test.c tests/qom-test: Use qtest_init() instead of qtest_start() 2019-05-21 10:00:37 +02:00
qos-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
rcutorture.c
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requirements.txt tests/requirements.txt: pin paramiko version requirement 2019-08-28 20:42:16 -04:00
rtas-test.c tests/libqos: embed allocators instead of malloc-ing them separately 2019-03-07 17:28:07 +01:00
rtc-test.c tests: Do not use "\n" in g_test_message() strings 2019-03-07 22:16:22 +01:00
rtl8139-test.c - qtest fixes 2019-03-08 16:31:34 +00:00
sdhci-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
socket-helpers.c tests: specify the address family when checking bind 2019-08-22 17:30:25 +04:00
socket-helpers.h tests: specify the address family when checking bind 2019-08-22 17:30:25 +04:00
spapr-phb-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
tco-test.c tests/tco: Make test independent of global_qtest 2019-05-08 16:59:28 +02:00
test-aio-multithread.c tests: Do not use "\n" in g_test_message() strings 2019-03-07 22:16:22 +01:00
test-aio.c
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test-arm-mptimer.c tests/test-arm-mptimer: Don't leak string memory 2018-12-14 13:30:54 +00:00
test-authz-list.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-authz-listfile.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-authz-pam.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-authz-simple.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-base64.c
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test-bdrv-drain.c Block layer patches: 2019-08-16 16:43:46 +01:00
test-bdrv-graph-mod.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00
test-bitcnt.c
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test-bitmap.c test-bitmap: test set 1 bit case for bitmap_set 2019-08-20 20:00:51 +02:00
test-bitops.c
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test-block-backend.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00
test-block-iothread.c mirror: Fix bdrv_has_zero_init() use 2019-08-19 17:13:26 +02:00
test-blockjob-txn.c tests: Set read-zeroes on for null-co driver 2019-08-15 19:23:59 +02:00
test-blockjob.c tests: Set read-zeroes on for null-co driver 2019-08-15 19:23:59 +02:00
test-bufferiszero.c
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test-char.c socket: Add num connections to qio_channel_socket_sync() 2019-09-03 23:24:42 +02:00
test-clone-visitor.c tests: Rename UserDefNativeListUnion to UserDefListUnion 2019-03-05 14:43:11 +01:00
test-coroutine.c tests: Do not use "\n" in g_test_message() strings 2019-03-07 22:16:22 +01:00
test-crypto-afsplit.c
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test-crypto-block.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-crypto-cipher.c
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test-crypto-hash.c
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test-crypto-hmac.c
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test-crypto-ivgen.c
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test-crypto-pbkdf.c test: execute g_test_run when tests are skipped 2019-01-11 13:57:25 +01:00
test-crypto-secret.c
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test-crypto-tlscredsx509.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-crypto-tlssession.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-crypto-xts.c crypto: add testing for unaligned buffers with XTS cipher mode 2018-10-24 19:03:37 +01:00
test-cutils.c cutils: Fix qemu_strtosz() & friends to reject non-finite sizes 2018-12-13 19:10:06 +01:00
test-filter-mirror.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
test-filter-redirector.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
test-hbitmap.c tests/test-hbitmap: test next_zero and _next_dirty_area after truncate 2019-08-16 18:29:43 -04:00
test-hmp.c tests/test-hmp: Use qtest_init() instead of qtest_start() 2019-05-08 16:59:28 +02:00
test-image-locking.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00
test-int128.c
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test-io-channel-buffer.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-io-channel-command.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-io-channel-file.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-io-channel-socket.c socket: Add num connections to qio_channel_socket_async() 2019-09-03 23:24:42 +02:00
test-io-channel-tls.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-io-task.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-iov.c
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test-keyval.c
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test-logging.c
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test-mul64.c
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test-netfilter.c
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test-opts-visitor.c
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test-qapi-util.c
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test-qdev-global-props.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
test-qdist.c
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test-qemu-opts.c
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test-qga.c qmp: common 'id' handling & make QGA conform to QMP spec 2019-03-18 10:48:06 -05:00
test-qgraph.c tests: test-qgraph: fix a memory leak 2019-03-11 16:33:49 +01:00
test-qht-par.c
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test-qht.c qht: drop ht argument from qht iterators 2018-09-26 08:55:54 -07:00
test-qmp-cmds.c tests/qapi-schema: Test for good feature lists in structs 2019-06-12 18:35:17 +02:00
test-qmp-event.c qapi: Generate QAPIEvent stuff into separate files 2019-02-18 14:44:04 +01:00
test-qobject-input-visitor.c tests: Rename UserDefNativeListUnion to UserDefListUnion 2019-03-05 14:43:11 +01:00
test-qobject-output-visitor.c tests: Rename UserDefNativeListUnion to UserDefListUnion 2019-03-05 14:43:11 +01:00
test-rcu-list.c qemu/queue.h: leave head structs anonymous unless necessary 2019-01-11 15:46:55 +01:00
test-rcu-simpleq.c tests: add test-list-simpleq 2018-08-23 18:46:25 +02:00
test-rcu-tailq.c tests: add test-rcu-tailq 2018-08-23 18:46:25 +02:00
test-replication.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00
test-shift128.c
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test-string-input-visitor.c tests: Fix uninitialized byte in test_visitor_in_fuzz 2019-08-20 17:26:19 +02:00
test-string-output-visitor.c
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test-thread-pool.c test-thread-pool: be more reliable 2019-06-03 14:03:00 +02:00
test-throttle.c test-throttle: Fix uninitialized use of burst_length 2019-08-20 17:26:19 +02:00
test-timed-average.c
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test-util-filemonitor.c filemon: fix watch IDs to avoid potential wraparound issues 2019-04-02 13:52:02 +01:00
test-util-sockets.c socket: Add backlog parameter to socket_listen 2019-09-03 23:24:42 +02:00
test-uuid.c
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test-visitor-serialization.c
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test-vmstate.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
test-write-threshold.c
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test-x86-cpuid-compat.c build-sys: remove glib_subprocess check 2018-08-23 18:46:25 +02:00
test-x86-cpuid.c i386: Update new x86_apicid parsing rules with die_offset support 2019-07-05 17:08:03 -03:00
test-xbzrle.c
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tmp105-test.c libqos: i2c: move address into QI2CDevice 2019-06-03 14:03:02 +02:00
tpm-crb-swtpm-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
tpm-crb-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
tpm-emu.c socket: Add num connections to qio_channel_socket_sync() 2019-09-03 23:24:42 +02:00
tpm-emu.h Clean up decorations and whitespace around header guards 2019-05-13 08:58:55 +02:00
tpm-tests.c tests/tpm-tests: Use g_test_skip() to mark skipped tests 2019-05-08 16:59:28 +02:00
tpm-tests.h
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tpm-tis-swtpm-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
tpm-tis-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
tpm-util.c tests/tpm: Display if swtpm is not found or --tpm2 not supported 2018-10-30 13:53:15 -04:00
tpm-util.h Clean up includes 2018-12-20 10:29:08 +01:00
usb-hcd-ehci-test.c tests/libqos: rename qpci_init_pc and qpci_init_spapr functions 2019-03-07 16:50:04 +01:00
usb-hcd-ohci-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
usb-hcd-uhci-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
usb-hcd-xhci-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
vhost-user-bridge.c libvhost-user: support many virtqueues 2019-07-04 17:00:32 -04:00
vhost-user-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
virtio-9p-test.c tests/libqos: Make generic virtio code independent from global_qtest 2019-08-15 19:23:59 +02:00
virtio-blk-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
virtio-ccw-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
virtio-net-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
virtio-rng-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
virtio-scsi-test.c tests/libqtest: Make qmp_assert_success() independent from global_qtest 2019-08-15 19:24:10 +02:00
virtio-serial-test.c tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest 2019-08-15 19:24:10 +02:00
virtio-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
vmgenid-test.c tests: acpi: make acpi_fetch_table() take size of fetched table pointer 2019-05-20 18:40:02 -04:00
vmxnet3-test.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
wdt_ib700-test.c
…