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Philippe Mathieu-Daudé f25e7ab2b0 block/nvme: Add driver statistics for access alignment and hw errors 
Keep statistics of some hardware errors, and number of
aligned/unaligned I/O accesses.

QMP example booting a full RHEL 8.3 aarch64 guest:

{ "execute": "query-blockstats" }
{
    "return": [
        {
            "device": "",
            "node-name": "drive0",
            "stats": {
                "flush_total_time_ns": 6026948,
                "wr_highest_offset": 3383991230464,
                "wr_total_time_ns": 807450995,
                "failed_wr_operations": 0,
                "failed_rd_operations": 0,
                "wr_merged": 3,
                "wr_bytes": 50133504,
                "failed_unmap_operations": 0,
                "failed_flush_operations": 0,
                "account_invalid": false,
                "rd_total_time_ns": 1846979900,
                "flush_operations": 130,
                "wr_operations": 659,
                "rd_merged": 1192,
                "rd_bytes": 218244096,
                "account_failed": false,
                "idle_time_ns": 2678641497,
                "rd_operations": 7406,
            },
            "driver-specific": {
                "driver": "nvme",
                "completion-errors": 0,
                "unaligned-accesses": 2959,
                "aligned-accesses": 4477
            },
            "qdev": "/machine/peripheral-anon/device[0]/virtio-backend"
        }
    ]
}

Suggested-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20201001162939.1567915-1-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-10-23 13:42:16 +01:00
..
export
block/export: Move writable to BlockExportOptions
2020-10-02 15:46:40 +02:00
monitor
block/export: Add block-export-del
2020-10-02 15:46:40 +02:00
accounting.c
block: add empty account cookie type
2019-10-10 10:56:18 +02:00
aio_task.c
block: introduce aio task pool
2019-10-10 10:56:17 +02:00
amend.c
block/amend: Check whether the node exists
2020-07-27 12:37:25 +02:00
backup-top.c
block: Inline bdrv_co_block_status_from_*()
2020-09-07 12:31:31 +02:00
backup-top.h
block: introduce backup-top filter driver
2019-10-10 10:56:18 +02:00
backup.c
backup: Deal with filters
2020-09-07 12:31:31 +02:00
blkdebug.c
block/blkdebug: fix memory leak
2020-10-13 13:33:46 +02:00
blklogwrites.c
block: Inline bdrv_co_block_status_from_*()
2020-09-07 12:31:31 +02:00
blkreplay.c
block: Use bdrv_default_perms()
2020-05-18 19:05:25 +02:00
blkverify.c
error: Eliminate error_propagate() with Coccinelle, part 2
2020-07-10 15:18:08 +02:00
block-backend.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
block-copy.c
block-copy: Use CAF to find sync=top base
2020-09-07 12:31:31 +02:00
block-gen.h
scripts: add block-coroutine-wrapper.py
2020-10-05 10:59:06 +01:00
bochs.c
block: Use bdrv_default_perms()
2020-05-18 19:05:25 +02:00
cloop.c
block: Use bdrv_default_perms()
2020-05-18 19:05:25 +02:00
commit.c
block: Inline bdrv_co_block_status_from_*()
2020-09-07 12:31:31 +02:00
copy-on-read.c
block: Inline bdrv_co_block_status_from_*()
2020-09-07 12:31:31 +02:00
coroutines.h
block/io: refactor save/load vmstate
2020-10-05 10:59:42 +01:00
create.c
block/create: Do not abort if a block driver is not available
2019-09-13 12:18:37 +02:00
crypto.c
block/crypto: disallow write sharing by default
2020-07-21 10:49:02 +02:00
crypto.h
block/crypto: implement the encryption key management
2020-07-06 08:49:28 +02:00
curl.c
error: Eliminate error_propagate() with Coccinelle, part 1
2020-07-10 15:18:08 +02:00
dirty-bitmap.c
block/dirty-bitmap: add bdrv_has_named_bitmaps helper
2020-05-28 13:15:22 -05:00
dmg-bz2.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
dmg-lzfse.c
block: adding lzfse decompressing support as a module.
2018-12-14 11:52:40 +01:00
dmg.c
block: Use bdrv_default_perms()
2020-05-18 19:05:25 +02:00
dmg.h
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
file-posix.c
block/file: switch to use qemu_open/qemu_create for improved errors
2020-09-16 10:33:48 +01:00
file-win32.c
block/file: switch to use qemu_open/qemu_create for improved errors
2020-09-16 10:33:48 +01:00
filter-compress.c
block: Inline bdrv_co_block_status_from_*()
2020-09-07 12:31:31 +02:00
gluster.c
error: Reduce unnecessary error propagation
2020-07-10 15:18:08 +02:00
io_uring.c
io_uring: use io_uring_cq_ready() to check for ready cqes
2020-06-05 09:54:48 +01:00
io.c
block/io: refactor save/load vmstate
2020-10-05 10:59:42 +01:00
iscsi-opts.c
Include qemu/module.h where needed, drop it from qemu-common.h
2019-06-12 13:18:33 +02:00
iscsi.c
qapi: Restrict query-uuid command to machine code
2020-09-29 15:41:35 +02:00
linux-aio.c
misc: Replace zero-length arrays with flexible array member (automatic)
2020-03-16 22:07:42 +01:00
meson.build
scripts: add block-coroutine-wrapper.py
2020-10-05 10:59:06 +01:00
mirror.c
block: Inline bdrv_co_block_status_from_*()
2020-09-07 12:31:31 +02:00
nbd.c
block/nbd: nbd_co_reconnect_loop(): don't connect if drained
2020-10-09 15:04:32 -05:00
nfs.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
null.c
block/null: Implement bdrv_get_allocated_file_size
2020-09-07 12:31:31 +02:00
nvme.c
block/nvme: Add driver statistics for access alignment and hw errors
2020-10-23 13:42:16 +01:00
parallels.c
error: Avoid error_propagate() after migrate_add_blocker()
2020-07-10 15:18:08 +02:00
parallels.h
Clean up includes
2018-02-09 05:05:11 +01:00
qapi-sysemu.c
block: Move system emulator QMP commands to block/qapi-sysemu.c
2020-03-06 17:15:38 +01:00
qapi.c
migration: introduce icount field for snapshots
2020-10-06 08:34:49 +02:00
qcow2-bitmap.c
qcow2: Use macros for the L1, refcount and bitmap table entry sizes
2020-09-15 11:05:12 +02:00
qcow2-cache.c
core: replace getpagesize() with qemu_real_host_page_size
2019-10-26 15:38:06 +02:00
qcow2-cluster.c
qcow2: Use L1E_SIZE in qcow2_write_l1_entry()
2020-10-02 15:46:40 +02:00
qcow2-refcount.c
qcow2: Make qcow2_free_any_clusters() free only one cluster
2020-09-15 11:05:13 +02:00
qcow2-snapshot.c
migration: introduce icount field for snapshots
2020-10-06 08:34:49 +02:00
qcow2-threads.c
qcow2: add zstd cluster compression
2020-05-13 14:20:31 +02:00
qcow2.c
qcow2: Convert qcow2_alloc_cluster_offset() into qcow2_alloc_host_offset()
2020-09-15 11:31:10 +02:00
qcow2.h
qcow2: introduce icount field for snapshots
2020-10-06 08:34:49 +02:00
qcow.c
block/qcow: remove runtime opts
2020-09-15 11:05:13 +02:00
qed-check.c
block/qed: add missed coroutine_fn markers
2019-04-30 15:29:00 +02:00
qed-cluster.c
qed: protect table cache with CoMutex
2017-07-17 11:34:11 +08:00
qed-l2-cache.c
qed: protect table cache with CoMutex
2017-07-17 11:34:11 +08:00
qed-table.c
block/qed: add missed coroutine_fn markers
2019-04-30 15:29:00 +02:00
qed.c
qapi: Smooth another visitor error checking pattern
2020-07-10 15:18:08 +02:00
qed.h
qed: Simplify backing reads
2020-07-06 10:34:14 +02:00
quorum.c
block/quorum.c: stable children names
2020-09-15 11:05:12 +02:00
raw-format.c
error: Eliminate error_propagate() with Coccinelle, part 2
2020-07-10 15:18:08 +02:00
rbd.c
block/rbd: add 'namespace' to qemu_rbd_strong_runtime_opts[]
2020-09-15 11:31:10 +02:00
replication.c
error: Reduce unnecessary error propagation
2020-07-10 15:18:08 +02:00
sheepdog.c
block: deprecate the sheepdog block driver
2020-10-15 16:06:28 +02:00
snapshot.c
block/snapshot: Fix fallback
2020-09-07 12:31:31 +02:00
ssh.c
qapi: Smooth another visitor error checking pattern
2020-07-10 15:18:08 +02:00
stream.c
stream: Deal with filters
2020-09-07 12:31:31 +02:00
throttle-groups.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
throttle.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
trace-events
trace-events: Fix attribution of trace points to source
2020-09-09 17:17:58 +01:00
trace.h
trace: switch position of headers to what Meson requires
2020-08-21 06:18:24 -04:00
vdi.c
error: Avoid error_propagate() after migrate_add_blocker()
2020-07-10 15:18:08 +02:00
vhdx-endian.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
vhdx-log.c
block: Add flags to bdrv(_co)_truncate()
2020-04-30 17:51:07 +02:00
vhdx.c
block/vhdx: Support vhdx image only with 512 bytes logical sector size
2020-09-15 11:05:13 +02:00
vhdx.h
block/vhdx: Use IEC binary prefixes for size constants
2019-04-30 15:29:00 +02:00
vmdk.c
vmdk: fix maybe uninitialized warnings
2020-10-13 13:33:45 +02:00
vpc.c
error: Avoid error_propagate() after migrate_add_blocker()
2020-07-10 15:18:08 +02:00
vvfat.c
util: rename qemu_open() to qemu_open_old()
2020-09-16 10:33:48 +01:00
win32-aio.c
Include qemu/module.h where needed, drop it from qemu-common.h
2019-06-12 13:18:33 +02:00
write-threshold.c
qapi: Drop qapi_event_send_FOO()'s Error ** argument
2018-08-28 18:21:38 +02:00