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Diffstat (limited to 'hw/virtio-blk.h')
| -rw-r--r-- | hw/virtio-blk.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/hw/virtio-blk.h b/hw/virtio-blk.h deleted file mode 100644 index 8c6c78b191..0000000000 --- a/hw/virtio-blk.h +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Virtio Block Device - * - * Copyright IBM, Corp. 2007 - * - * Authors: - * Anthony Liguori <aliguori@us.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ - -#ifndef _QEMU_VIRTIO_BLK_H -#define _QEMU_VIRTIO_BLK_H - -#include "hw/virtio.h" -#include "hw/block-common.h" -#ifdef CONFIG_VIRTIO_BLK_DATA_PLANE -#include "dataplane/virtio-blk.h" -#endif - -#define TYPE_VIRTIO_BLK "virtio-blk" -#define VIRTIO_BLK(obj) \ - OBJECT_CHECK(VirtIOBlock, (obj), TYPE_VIRTIO_BLK) - -/* from Linux's linux/virtio_blk.h */ - -/* The ID for virtio_block */ -#define VIRTIO_ID_BLOCK 2 - -/* Feature bits */ -#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */ -#define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */ -#define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */ -#define VIRTIO_BLK_F_GEOMETRY 4 /* Indicates support of legacy geometry */ -#define VIRTIO_BLK_F_RO 5 /* Disk is read-only */ -#define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/ -#define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */ -/* #define VIRTIO_BLK_F_IDENTIFY 8 ATA IDENTIFY supported, DEPRECATED */ -#define VIRTIO_BLK_F_WCE 9 /* write cache enabled */ -#define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */ -#define VIRTIO_BLK_F_CONFIG_WCE 11 /* write cache configurable */ - -#define VIRTIO_BLK_ID_BYTES 20 /* ID string length */ - -struct virtio_blk_config -{ - uint64_t capacity; - uint32_t size_max; - uint32_t seg_max; - uint16_t cylinders; - uint8_t heads; - uint8_t sectors; - uint32_t blk_size; - uint8_t physical_block_exp; - uint8_t alignment_offset; - uint16_t min_io_size; - uint32_t opt_io_size; - uint8_t wce; -} QEMU_PACKED; - -/* These two define direction. */ -#define VIRTIO_BLK_T_IN 0 -#define VIRTIO_BLK_T_OUT 1 - -/* This bit says it's a scsi command, not an actual read or write. */ -#define VIRTIO_BLK_T_SCSI_CMD 2 - -/* Flush the volatile write cache */ -#define VIRTIO_BLK_T_FLUSH 4 - -/* return the device ID string */ -#define VIRTIO_BLK_T_GET_ID 8 - -/* Barrier before this op. */ -#define VIRTIO_BLK_T_BARRIER 0x80000000 - -/* This is the first element of the read scatter-gather list. */ -struct virtio_blk_outhdr -{ - /* VIRTIO_BLK_T* */ - uint32_t type; - /* io priority. */ - uint32_t ioprio; - /* Sector (ie. 512 byte offset) */ - uint64_t sector; -}; - -#define VIRTIO_BLK_S_OK 0 -#define VIRTIO_BLK_S_IOERR 1 -#define VIRTIO_BLK_S_UNSUPP 2 - -/* This is the last element of the write scatter-gather list */ -struct virtio_blk_inhdr -{ - unsigned char status; -}; - -/* SCSI pass-through header */ -struct virtio_scsi_inhdr -{ - uint32_t errors; - uint32_t data_len; - uint32_t sense_len; - uint32_t residual; -}; - -struct VirtIOBlkConf -{ - BlockConf conf; - char *serial; - uint32_t scsi; - uint32_t config_wce; - uint32_t data_plane; -}; - -typedef struct VirtIOBlock { - VirtIODevice parent_obj; - BlockDriverState *bs; - VirtQueue *vq; - void *rq; - QEMUBH *bh; - BlockConf *conf; - VirtIOBlkConf blk; - unsigned short sector_mask; - VMChangeStateEntry *change; -#ifdef CONFIG_VIRTIO_BLK_DATA_PLANE - VirtIOBlockDataPlane *dataplane; -#endif -} VirtIOBlock; - -#define DEFINE_VIRTIO_BLK_FEATURES(_state, _field) \ - DEFINE_VIRTIO_COMMON_FEATURES(_state, _field) - -#ifdef __linux__ -#define DEFINE_VIRTIO_BLK_PROPERTIES(_state, _field) \ - DEFINE_BLOCK_PROPERTIES(_state, _field.conf), \ - DEFINE_BLOCK_CHS_PROPERTIES(_state, _field.conf), \ - DEFINE_PROP_STRING("serial", _state, _field.serial), \ - DEFINE_PROP_BIT("config-wce", _state, _field.config_wce, 0, true), \ - DEFINE_PROP_BIT("scsi", _state, _field.scsi, 0, true) -#else -#define DEFINE_VIRTIO_BLK_PROPERTIES(_state, _field) \ - DEFINE_BLOCK_PROPERTIES(_state, _field.conf), \ - DEFINE_BLOCK_CHS_PROPERTIES(_state, _field.conf), \ - DEFINE_PROP_STRING("serial", _state, _field.serial), \ - DEFINE_PROP_BIT("config-wce", _state, _field.config_wce, 0, true) -#endif /* __linux__ */ - -void virtio_blk_set_conf(DeviceState *dev, VirtIOBlkConf *blk); - -#endif |