Lines Matching refs:be
46 struct xenbus_device *xen_blkbk_xenbus(struct backend_info *be) in xen_blkbk_xenbus() argument
48 return be->dev; in xen_blkbk_xenbus()
66 struct xenbus_device *dev = blkif->be->dev; in blkback_name()
94 if (blkif->be->dev->state == XenbusStateConnected) in xen_update_blkif_status()
98 connect(blkif->be); in xen_update_blkif_status()
99 if (blkif->be->dev->state != XenbusStateConnected) in xen_update_blkif_status()
104 xenbus_dev_error(blkif->be->dev, err, "get blkback dev name"); in xen_update_blkif_status()
110 xenbus_dev_error(blkif->be->dev, err, "block flush"); in xen_update_blkif_status()
119 xenbus_dev_error(blkif->be->dev, err, "start xenblkd"); in xen_update_blkif_status()
210 err = xenbus_map_ring_valloc(blkif->be->dev, &gref, 1, in xen_blkif_map()
245 xenbus_unmap_ring_vfree(blkif->be->dev, blkif->blk_ring); in xen_blkif_map()
275 xenbus_unmap_ring_vfree(blkif->be->dev, blkif->blk_ring); in xen_blkif_disconnect()
341 struct backend_info *be = dev_get_drvdata(&dev->dev); \
347 VBD_SHOW(oo_req, "%llu\n", be->blkif->st_oo_req);
348 VBD_SHOW(rd_req, "%llu\n", be->blkif->st_rd_req);
349 VBD_SHOW(wr_req, "%llu\n", be->blkif->st_wr_req);
350 VBD_SHOW(f_req, "%llu\n", be->blkif->st_f_req);
351 VBD_SHOW(ds_req, "%llu\n", be->blkif->st_ds_req);
352 VBD_SHOW(rd_sect, "%llu\n", be->blkif->st_rd_sect);
353 VBD_SHOW(wr_sect, "%llu\n", be->blkif->st_wr_sect);
371 VBD_SHOW(physical_device, "%x:%x\n", be->major, be->minor);
372 VBD_SHOW(mode, "%s\n", be->mode);
464 struct backend_info *be = dev_get_drvdata(&dev->dev); in xen_blkbk_remove() local
468 if (be->major || be->minor) in xen_blkbk_remove()
471 if (be->backend_watch.node) { in xen_blkbk_remove()
472 unregister_xenbus_watch(&be->backend_watch); in xen_blkbk_remove()
473 kfree(be->backend_watch.node); in xen_blkbk_remove()
474 be->backend_watch.node = NULL; in xen_blkbk_remove()
479 if (be->blkif) { in xen_blkbk_remove()
480 xen_blkif_disconnect(be->blkif); in xen_blkbk_remove()
481 xen_blkif_put(be->blkif); in xen_blkbk_remove()
484 kfree(be->mode); in xen_blkbk_remove()
485 kfree(be); in xen_blkbk_remove()
490 struct backend_info *be, int state) in xen_blkbk_flush_diskcache() argument
492 struct xenbus_device *dev = be->dev; in xen_blkbk_flush_diskcache()
503 static void xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info *be) in xen_blkbk_discard() argument
505 struct xenbus_device *dev = be->dev; in xen_blkbk_discard()
506 struct xen_blkif *blkif = be->blkif; in xen_blkbk_discard()
509 struct block_device *bdev = be->blkif->vbd.bdev; in xen_blkbk_discard()
548 struct backend_info *be, int state) in xen_blkbk_barrier() argument
550 struct xenbus_device *dev = be->dev; in xen_blkbk_barrier()
570 struct backend_info *be = kzalloc(sizeof(struct backend_info), in xen_blkbk_probe() local
576 if (!be) { in xen_blkbk_probe()
581 be->dev = dev; in xen_blkbk_probe()
582 dev_set_drvdata(&dev->dev, be); in xen_blkbk_probe()
584 be->blkif = xen_blkif_alloc(dev->otherend_id); in xen_blkbk_probe()
585 if (IS_ERR(be->blkif)) { in xen_blkbk_probe()
586 err = PTR_ERR(be->blkif); in xen_blkbk_probe()
587 be->blkif = NULL; in xen_blkbk_probe()
593 be->blkif->be = be; in xen_blkbk_probe()
595 err = xenbus_watch_pathfmt(dev, &be->backend_watch, backend_changed, in xen_blkbk_probe()
624 struct backend_info *be in backend_changed() local
626 struct xenbus_device *dev = be->dev; in backend_changed()
648 if (be->major | be->minor) { in backend_changed()
649 if (be->major != major || be->minor != minor) in backend_changed()
651 be->major, be->minor, major, minor); in backend_changed()
655 be->mode = xenbus_read(XBT_NIL, dev->nodename, "mode", NULL); in backend_changed()
656 if (IS_ERR(be->mode)) { in backend_changed()
657 err = PTR_ERR(be->mode); in backend_changed()
658 be->mode = NULL; in backend_changed()
674 be->major = major; in backend_changed()
675 be->minor = minor; in backend_changed()
677 err = xen_vbd_create(be->blkif, handle, major, minor, in backend_changed()
678 !strchr(be->mode, 'w'), cdrom); in backend_changed()
685 xen_vbd_free(&be->blkif->vbd); in backend_changed()
691 kfree(be->mode); in backend_changed()
692 be->mode = NULL; in backend_changed()
693 be->major = 0; in backend_changed()
694 be->minor = 0; in backend_changed()
697 xen_update_blkif_status(be->blkif); in backend_changed()
708 struct backend_info *be = dev_get_drvdata(&dev->dev); in frontend_changed() local
735 err = xen_blkif_disconnect(be->blkif); in frontend_changed()
741 err = connect_ring(be); in frontend_changed()
744 xen_update_blkif_status(be->blkif); in frontend_changed()
752 xen_blkif_disconnect(be->blkif); in frontend_changed()
777 static void connect(struct backend_info *be) in connect() argument
781 struct xenbus_device *dev = be->dev; in connect()
794 xen_blkbk_flush_diskcache(xbt, be, be->blkif->vbd.flush_support); in connect()
796 xen_blkbk_discard(xbt, be); in connect()
798 xen_blkbk_barrier(xbt, be, be->blkif->vbd.flush_support); in connect()
813 (unsigned long long)vbd_sz(&be->blkif->vbd)); in connect()
822 be->blkif->vbd.type | in connect()
823 (be->blkif->vbd.readonly ? VDISK_READONLY : 0)); in connect()
831 bdev_logical_block_size(be->blkif->vbd.bdev)); in connect()
838 bdev_physical_block_size(be->blkif->vbd.bdev)); in connect()
860 static int connect_ring(struct backend_info *be) in connect_ring() argument
862 struct xenbus_device *dev = be->dev; in connect_ring()
880 be->blkif->blk_protocol = BLKIF_PROTOCOL_DEFAULT; in connect_ring()
886 be->blkif->blk_protocol = BLKIF_PROTOCOL_NATIVE; in connect_ring()
888 be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_32; in connect_ring()
890 be->blkif->blk_protocol = BLKIF_PROTOCOL_X86_64; in connect_ring()
901 be->blkif->vbd.feature_gnt_persistent = pers_grants; in connect_ring()
902 be->blkif->vbd.overflow_max_grants = 0; in connect_ring()
905 ring_ref, evtchn, be->blkif->blk_protocol, protocol, in connect_ring()
909 err = xen_blkif_map(be->blkif, ring_ref, evtchn); in connect_ring()