mirror of https://github.com/F-Stack/f-stack.git
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(c) 2022 Intel Corporation
|
|
*/
|
|
|
|
#ifndef _VDPA_BLK_COMPACT_H_
|
|
#define _VDPA_BLK_COMPACT_H_
|
|
|
|
#include <rte_vhost.h>
|
|
|
|
/* Feature bits */
|
|
#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 /* Legacy geometry available */
|
|
#define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available */
|
|
#define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */
|
|
#define VIRTIO_BLK_F_MQ 12 /* support more than one vq */
|
|
|
|
/* Legacy feature bits */
|
|
#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */
|
|
#define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */
|
|
#define VIRTIO_BLK_F_CONFIG_WCE 11 /* Writeback mode available in config */
|
|
|
|
#define VHOST_BLK_FEATURES_BASE ((1ULL << VHOST_F_LOG_ALL) | \
|
|
(1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) | \
|
|
(1ULL << VIRTIO_RING_F_INDIRECT_DESC) | \
|
|
(1ULL << VIRTIO_RING_F_EVENT_IDX) | \
|
|
(1ULL << VHOST_USER_F_PROTOCOL_FEATURES) | \
|
|
(1ULL << VIRTIO_F_VERSION_1))
|
|
|
|
#define VHOST_BLK_DISABLED_FEATURES_BASE ((1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) | \
|
|
(1ULL << VIRTIO_RING_F_EVENT_IDX))
|
|
|
|
#define VHOST_BLK_FEATURES (VHOST_BLK_FEATURES_BASE | \
|
|
(1ULL << VIRTIO_BLK_F_SIZE_MAX) | (1ULL << VIRTIO_BLK_F_SEG_MAX) | \
|
|
(1ULL << VIRTIO_BLK_F_GEOMETRY) | (1ULL << VIRTIO_BLK_F_BLK_SIZE) | \
|
|
(1ULL << VIRTIO_BLK_F_TOPOLOGY) | (1ULL << VIRTIO_BLK_F_BARRIER) | \
|
|
(1ULL << VIRTIO_BLK_F_SCSI) | (1ULL << VIRTIO_BLK_F_CONFIG_WCE) | \
|
|
(1ULL << VIRTIO_BLK_F_MQ))
|
|
|
|
/* Not supported features */
|
|
#define VHOST_BLK_DISABLED_FEATURES (VHOST_BLK_DISABLED_FEATURES_BASE | \
|
|
(1ULL << VIRTIO_BLK_F_GEOMETRY) | (1ULL << VIRTIO_BLK_F_BARRIER) | \
|
|
(1ULL << VIRTIO_BLK_F_SCSI) | (1ULL << VIRTIO_BLK_F_CONFIG_WCE))
|
|
|
|
/* Vhost-blk support protocol features */
|
|
#define VHOST_BLK_PROTOCOL_FEATURES \
|
|
((1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) | \
|
|
(1ULL << VHOST_USER_PROTOCOL_F_CONFIG))
|
|
|
|
#endif /* _VDPA_BLK_COMPACT_H_ */
|