1*d5499149SAndy Pei /* SPDX-License-Identifier: BSD-3-Clause 2*d5499149SAndy Pei * Copyright(c) 2022 Intel Corporation 3*d5499149SAndy Pei */ 4*d5499149SAndy Pei 5*d5499149SAndy Pei #ifndef _VDPA_BLK_COMPACT_H_ 6*d5499149SAndy Pei #define _VDPA_BLK_COMPACT_H_ 7*d5499149SAndy Pei 8*d5499149SAndy Pei #include <rte_vhost.h> 9*d5499149SAndy Pei 10*d5499149SAndy Pei /* Feature bits */ 11*d5499149SAndy Pei #define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */ 12*d5499149SAndy Pei #define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */ 13*d5499149SAndy Pei #define VIRTIO_BLK_F_GEOMETRY 4 /* Legacy geometry available */ 14*d5499149SAndy Pei #define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available */ 15*d5499149SAndy Pei #define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */ 16*d5499149SAndy Pei #define VIRTIO_BLK_F_MQ 12 /* support more than one vq */ 17*d5499149SAndy Pei 18*d5499149SAndy Pei /* Legacy feature bits */ 19*d5499149SAndy Pei #define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */ 20*d5499149SAndy Pei #define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */ 21*d5499149SAndy Pei #define VIRTIO_BLK_F_CONFIG_WCE 11 /* Writeback mode available in config */ 22*d5499149SAndy Pei 23*d5499149SAndy Pei #define VHOST_BLK_FEATURES_BASE ((1ULL << VHOST_F_LOG_ALL) | \ 24*d5499149SAndy Pei (1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) | \ 25*d5499149SAndy Pei (1ULL << VIRTIO_RING_F_INDIRECT_DESC) | \ 26*d5499149SAndy Pei (1ULL << VIRTIO_RING_F_EVENT_IDX) | \ 27*d5499149SAndy Pei (1ULL << VHOST_USER_F_PROTOCOL_FEATURES) | \ 28*d5499149SAndy Pei (1ULL << VIRTIO_F_VERSION_1)) 29*d5499149SAndy Pei 30*d5499149SAndy Pei #define VHOST_BLK_DISABLED_FEATURES_BASE ((1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) | \ 31*d5499149SAndy Pei (1ULL << VIRTIO_RING_F_EVENT_IDX)) 32*d5499149SAndy Pei 33*d5499149SAndy Pei #define VHOST_BLK_FEATURES (VHOST_BLK_FEATURES_BASE | \ 34*d5499149SAndy Pei (1ULL << VIRTIO_BLK_F_SIZE_MAX) | (1ULL << VIRTIO_BLK_F_SEG_MAX) | \ 35*d5499149SAndy Pei (1ULL << VIRTIO_BLK_F_GEOMETRY) | (1ULL << VIRTIO_BLK_F_BLK_SIZE) | \ 36*d5499149SAndy Pei (1ULL << VIRTIO_BLK_F_TOPOLOGY) | (1ULL << VIRTIO_BLK_F_BARRIER) | \ 37*d5499149SAndy Pei (1ULL << VIRTIO_BLK_F_SCSI) | (1ULL << VIRTIO_BLK_F_CONFIG_WCE) | \ 38*d5499149SAndy Pei (1ULL << VIRTIO_BLK_F_MQ)) 39*d5499149SAndy Pei 40*d5499149SAndy Pei /* Not supported features */ 41*d5499149SAndy Pei #define VHOST_BLK_DISABLED_FEATURES (VHOST_BLK_DISABLED_FEATURES_BASE | \ 42*d5499149SAndy Pei (1ULL << VIRTIO_BLK_F_GEOMETRY) | (1ULL << VIRTIO_BLK_F_BARRIER) | \ 43*d5499149SAndy Pei (1ULL << VIRTIO_BLK_F_SCSI) | (1ULL << VIRTIO_BLK_F_CONFIG_WCE)) 44*d5499149SAndy Pei 45*d5499149SAndy Pei /* Vhost-blk support protocol features */ 46*d5499149SAndy Pei #define VHOST_BLK_PROTOCOL_FEATURES \ 47*d5499149SAndy Pei ((1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) | \ 48*d5499149SAndy Pei (1ULL << VHOST_USER_PROTOCOL_F_CONFIG)) 49*d5499149SAndy Pei 50*d5499149SAndy Pei #endif /* _VDPA_BLK_COMPACT_H_ */ 51