From 2a30307f709e6a395d23cf94837e9aae15f8e8fa Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 7 Oct 2014 13:59:17 +0200 Subject: [PATCH] virtio-blk: Rename VirtIOBlkConf variables to conf This is consistent with how VirtIOFOOConf variables are named elsewhere, and makes blk available for BlockBackend variables. Signed-off-by: Markus Armbruster Reviewed-by: Max Reitz Signed-off-by: Kevin Wolf --- hw/block/dataplane/virtio-blk.c | 33 +++++++++++----------- hw/block/dataplane/virtio-blk.h | 2 +- hw/block/virtio-blk.c | 50 ++++++++++++++++----------------- include/hw/virtio/virtio-blk.h | 2 +- 4 files changed, 44 insertions(+), 43 deletions(-) diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c index 5458f9d25f..bd250df886 100644 --- a/hw/block/dataplane/virtio-blk.c +++ b/hw/block/dataplane/virtio-blk.c @@ -30,7 +30,7 @@ struct VirtIOBlockDataPlane { bool stopping; bool disabled; - VirtIOBlkConf *blk; + VirtIOBlkConf *conf; VirtIODevice *vdev; Vring vring; /* virtqueue vring */ @@ -94,7 +94,7 @@ static void handle_notify(EventNotifier *e) VirtIOBlock *vblk = VIRTIO_BLK(s->vdev); event_notifier_test_and_clear(&s->host_notifier); - bdrv_io_plug(s->blk->conf.bs); + bdrv_io_plug(s->conf->conf.bs); for (;;) { MultiReqBuffer mrb = { .num_writes = 0, @@ -120,7 +120,7 @@ static void handle_notify(EventNotifier *e) virtio_blk_handle_request(req, &mrb); } - virtio_submit_multiwrite(s->blk->conf.bs, &mrb); + virtio_submit_multiwrite(s->conf->conf.bs, &mrb); if (likely(ret == -EAGAIN)) { /* vring emptied */ /* Re-enable guest->host notifies and stop processing the vring. @@ -133,11 +133,11 @@ static void handle_notify(EventNotifier *e) break; } } - bdrv_io_unplug(s->blk->conf.bs); + bdrv_io_unplug(s->conf->conf.bs); } /* Context: QEMU global mutex held */ -void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk, +void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *conf, VirtIOBlockDataPlane **dataplane, Error **errp) { @@ -148,7 +148,7 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk, *dataplane = NULL; - if (!blk->data_plane && !blk->iothread) { + if (!conf->data_plane && !conf->iothread) { return; } @@ -163,7 +163,8 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk, /* If dataplane is (re-)enabled while the guest is running there could be * block jobs that can conflict. */ - if (bdrv_op_is_blocked(blk->conf.bs, BLOCK_OP_TYPE_DATAPLANE, &local_err)) { + if (bdrv_op_is_blocked(conf->conf.bs, BLOCK_OP_TYPE_DATAPLANE, + &local_err)) { error_setg(errp, "cannot start dataplane thread: %s", error_get_pretty(local_err)); error_free(local_err); @@ -172,10 +173,10 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk, s = g_new0(VirtIOBlockDataPlane, 1); s->vdev = vdev; - s->blk = blk; + s->conf = conf; - if (blk->iothread) { - s->iothread = blk->iothread; + if (conf->iothread) { + s->iothread = conf->iothread; object_ref(OBJECT(s->iothread)); } else { /* Create per-device IOThread if none specified. This is for @@ -192,9 +193,9 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk, s->bh = aio_bh_new(s->ctx, notify_guest_bh, s); error_setg(&s->blocker, "block device is in use by data plane"); - bdrv_op_block_all(blk->conf.bs, s->blocker); - bdrv_op_unblock(blk->conf.bs, BLOCK_OP_TYPE_RESIZE, s->blocker); - bdrv_op_unblock(blk->conf.bs, BLOCK_OP_TYPE_DRIVE_DEL, s->blocker); + bdrv_op_block_all(conf->conf.bs, s->blocker); + bdrv_op_unblock(conf->conf.bs, BLOCK_OP_TYPE_RESIZE, s->blocker); + bdrv_op_unblock(conf->conf.bs, BLOCK_OP_TYPE_DRIVE_DEL, s->blocker); *dataplane = s; } @@ -207,7 +208,7 @@ void virtio_blk_data_plane_destroy(VirtIOBlockDataPlane *s) } virtio_blk_data_plane_stop(s); - bdrv_op_unblock_all(s->blk->conf.bs, s->blocker); + bdrv_op_unblock_all(s->conf->conf.bs, s->blocker); error_free(s->blocker); object_unref(OBJECT(s->iothread)); qemu_bh_delete(s->bh); @@ -262,7 +263,7 @@ void virtio_blk_data_plane_start(VirtIOBlockDataPlane *s) s->started = true; trace_virtio_blk_data_plane_start(s); - bdrv_set_aio_context(s->blk->conf.bs, s->ctx); + bdrv_set_aio_context(s->conf->conf.bs, s->ctx); /* Kick right away to begin processing requests already in vring */ event_notifier_set(virtio_queue_get_host_notifier(vq)); @@ -308,7 +309,7 @@ void virtio_blk_data_plane_stop(VirtIOBlockDataPlane *s) aio_set_event_notifier(s->ctx, &s->host_notifier, NULL); /* Drain and switch bs back to the QEMU main loop */ - bdrv_set_aio_context(s->blk->conf.bs, qemu_get_aio_context()); + bdrv_set_aio_context(s->conf->conf.bs, qemu_get_aio_context()); aio_context_release(s->ctx); diff --git a/hw/block/dataplane/virtio-blk.h b/hw/block/dataplane/virtio-blk.h index 1750c9905b..c88d40e72c 100644 --- a/hw/block/dataplane/virtio-blk.h +++ b/hw/block/dataplane/virtio-blk.h @@ -19,7 +19,7 @@ typedef struct VirtIOBlockDataPlane VirtIOBlockDataPlane; -void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk, +void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *conf, VirtIOBlockDataPlane **dataplane, Error **errp); void virtio_blk_data_plane_destroy(VirtIOBlockDataPlane *s); diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index 162182620f..4dc794c2fe 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -155,7 +155,7 @@ int virtio_blk_handle_scsi_req(VirtIOBlock *blk, */ scsi = (void *)elem->in_sg[elem->in_num - 2].iov_base; - if (!blk->blk.scsi) { + if (!blk->conf.scsi) { status = VIRTIO_BLK_S_UNSUPP; goto fail; } @@ -296,7 +296,7 @@ static bool virtio_blk_sect_range_ok(VirtIOBlock *dev, if (sector & dev->sector_mask) { return false; } - if (size % dev->blk.conf.logical_block_size) { + if (size % dev->conf.conf.logical_block_size) { return false; } bdrv_get_geometry(dev->bs, &total_sectors); @@ -405,7 +405,7 @@ void virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb) * NB: per existing s/n string convention the string is * terminated by '\0' only when shorter than buffer. */ - const char *serial = s->blk.serial ? s->blk.serial : ""; + const char *serial = s->conf.serial ? s->conf.serial : ""; size_t size = MIN(strlen(serial) + 1, MIN(iov_size(in_iov, in_num), VIRTIO_BLK_ID_BYTES)); @@ -486,7 +486,7 @@ static void virtio_blk_dma_restart_cb(void *opaque, int running, } if (!s->bh) { - s->bh = aio_bh_new(bdrv_get_aio_context(s->blk.conf.bs), + s->bh = aio_bh_new(bdrv_get_aio_context(s->conf.conf.bs), virtio_blk_dma_restart_bh, s); qemu_bh_schedule(s->bh); } @@ -513,7 +513,7 @@ static void virtio_blk_reset(VirtIODevice *vdev) static void virtio_blk_update_config(VirtIODevice *vdev, uint8_t *config) { VirtIOBlock *s = VIRTIO_BLK(vdev); - BlockConf *conf = &s->blk.conf; + BlockConf *conf = &s->conf.conf; struct virtio_blk_config blkcfg; uint64_t capacity; int blk_size = conf->logical_block_size; @@ -572,7 +572,7 @@ static uint32_t virtio_blk_get_features(VirtIODevice *vdev, uint32_t features) features |= (1 << VIRTIO_BLK_F_BLK_SIZE); features |= (1 << VIRTIO_BLK_F_SCSI); - if (s->blk.config_wce) { + if (s->conf.config_wce) { features |= (1 << VIRTIO_BLK_F_CONFIG_WCE); } if (bdrv_enable_write_cache(s->bs)) @@ -709,7 +709,7 @@ static void virtio_blk_migration_state_changed(Notifier *notifier, void *data) return; } bdrv_drain_all(); /* complete in-flight non-dataplane requests */ - virtio_blk_data_plane_create(VIRTIO_DEVICE(s), &s->blk, + virtio_blk_data_plane_create(VIRTIO_DEVICE(s), &s->conf, &s->dataplane, &err); if (err != NULL) { error_report("%s", error_get_pretty(err)); @@ -722,22 +722,22 @@ static void virtio_blk_device_realize(DeviceState *dev, Error **errp) { VirtIODevice *vdev = VIRTIO_DEVICE(dev); VirtIOBlock *s = VIRTIO_BLK(dev); - VirtIOBlkConf *blk = &(s->blk); + VirtIOBlkConf *conf = &s->conf; Error *err = NULL; static int virtio_blk_id; - if (!blk->conf.bs) { + if (!conf->conf.bs) { error_setg(errp, "drive property not set"); return; } - if (!bdrv_is_inserted(blk->conf.bs)) { + if (!bdrv_is_inserted(conf->conf.bs)) { error_setg(errp, "Device needs media, but drive is empty"); return; } - blkconf_serial(&blk->conf, &blk->serial); - s->original_wce = bdrv_enable_write_cache(blk->conf.bs); - blkconf_geometry(&blk->conf, NULL, 65535, 255, 255, &err); + blkconf_serial(&conf->conf, &conf->serial); + s->original_wce = bdrv_enable_write_cache(conf->conf.bs); + blkconf_geometry(&conf->conf, NULL, 65535, 255, 255, &err); if (err) { error_propagate(errp, err); return; @@ -746,13 +746,13 @@ static void virtio_blk_device_realize(DeviceState *dev, Error **errp) virtio_init(vdev, "virtio-blk", VIRTIO_ID_BLOCK, sizeof(struct virtio_blk_config)); - s->bs = blk->conf.bs; + s->bs = conf->conf.bs; s->rq = NULL; - s->sector_mask = (s->blk.conf.logical_block_size / BDRV_SECTOR_SIZE) - 1; + s->sector_mask = (s->conf.conf.logical_block_size / BDRV_SECTOR_SIZE) - 1; s->vq = virtio_add_queue(vdev, 128, virtio_blk_handle_output); s->complete_request = virtio_blk_complete_request; - virtio_blk_data_plane_create(vdev, blk, &s->dataplane, &err); + virtio_blk_data_plane_create(vdev, conf, &s->dataplane, &err); if (err != NULL) { error_propagate(errp, err); virtio_cleanup(vdev); @@ -765,7 +765,7 @@ static void virtio_blk_device_realize(DeviceState *dev, Error **errp) register_savevm(dev, "virtio-blk", virtio_blk_id++, 2, virtio_blk_save, virtio_blk_load, s); bdrv_set_dev_ops(s->bs, &virtio_block_ops, s); - bdrv_set_guest_block_size(s->bs, s->blk.conf.logical_block_size); + bdrv_set_guest_block_size(s->bs, s->conf.conf.logical_block_size); bdrv_iostatus_enable(s->bs); } @@ -789,23 +789,23 @@ static void virtio_blk_instance_init(Object *obj) VirtIOBlock *s = VIRTIO_BLK(obj); object_property_add_link(obj, "iothread", TYPE_IOTHREAD, - (Object **)&s->blk.iothread, + (Object **)&s->conf.iothread, qdev_prop_allow_set_link_before_realize, OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL); - device_add_bootindex_property(obj, &s->blk.conf.bootindex, + device_add_bootindex_property(obj, &s->conf.conf.bootindex, "bootindex", "/disk@0,0", DEVICE(obj), NULL); } static Property virtio_blk_properties[] = { - DEFINE_BLOCK_PROPERTIES(VirtIOBlock, blk.conf), - DEFINE_BLOCK_CHS_PROPERTIES(VirtIOBlock, blk.conf), - DEFINE_PROP_STRING("serial", VirtIOBlock, blk.serial), - DEFINE_PROP_BIT("config-wce", VirtIOBlock, blk.config_wce, 0, true), + DEFINE_BLOCK_PROPERTIES(VirtIOBlock, conf.conf), + DEFINE_BLOCK_CHS_PROPERTIES(VirtIOBlock, conf.conf), + DEFINE_PROP_STRING("serial", VirtIOBlock, conf.serial), + DEFINE_PROP_BIT("config-wce", VirtIOBlock, conf.config_wce, 0, true), #ifdef __linux__ - DEFINE_PROP_BIT("scsi", VirtIOBlock, blk.scsi, 0, true), + DEFINE_PROP_BIT("scsi", VirtIOBlock, conf.scsi, 0, true), #endif - DEFINE_PROP_BIT("x-data-plane", VirtIOBlock, blk.data_plane, 0, false), + DEFINE_PROP_BIT("x-data-plane", VirtIOBlock, conf.data_plane, 0, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/include/hw/virtio/virtio-blk.h b/include/hw/virtio/virtio-blk.h index 0f4323d73c..0f7ca3ceef 100644 --- a/include/hw/virtio/virtio-blk.h +++ b/include/hw/virtio/virtio-blk.h @@ -125,7 +125,7 @@ typedef struct VirtIOBlock { VirtQueue *vq; void *rq; QEMUBH *bh; - VirtIOBlkConf blk; + VirtIOBlkConf conf; unsigned short sector_mask; bool original_wce; VMChangeStateEntry *change;