vmstate: port cuda

[qemu.git] / hw / virtio-blk.h

diff --git a/hw/virtio-blk.h b/hw/virtio-blk.h
index c6661c0ad7405dcc8a561408dc3c58f8bf84760d..fff46da7db680f44cbc8917406347a6ce4ebb873 100644 (file)
--- a/hw/virtio-blk.h
+++ b/hw/virtio-blk.h
@@ -16,7 +16,6 @@
 
 #include "virtio.h"
 #include "block.h"
-#include "pci.h"
 
 /* from Linux's linux/virtio_blk.h */
 
@@ -28,6 +27,12 @@
 #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_WCACHE     9       /* write cache enabled */
+#define VIRTIO_BLK_F_TOPOLOGY   10      /* Topology information is available */
 
 struct virtio_blk_config
 {
@@ -37,6 +42,11 @@ struct virtio_blk_config
     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;
 } __attribute__((packed));
 
 /* These two define direction. */
@@ -46,6 +56,12 @@ struct virtio_blk_config
 /* 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
 
@@ -64,13 +80,27 @@ struct virtio_blk_outhdr
 #define VIRTIO_BLK_S_IOERR      1
 #define VIRTIO_BLK_S_UNSUPP     2
 
-/* This is the first element of the write scatter-gather list */
+/* This is the last element of the write scatter-gather list */
 struct virtio_blk_inhdr
 {
     unsigned char status;
 };
 
-void *virtio_blk_init(PCIBus *bus, uint16_t vendor, uint16_t device,
-                      BlockDriverState *bs);
+/* SCSI pass-through header */
+struct virtio_scsi_inhdr
+{
+    uint32_t errors;
+    uint32_t data_len;
+    uint32_t sense_len;
+    uint32_t residual;
+};
 
+#ifdef __linux__
+#define DEFINE_VIRTIO_BLK_FEATURES(_state, _field) \
+        DEFINE_VIRTIO_COMMON_FEATURES(_state, _field), \
+        DEFINE_PROP_BIT("scsi", _state, _field, VIRTIO_BLK_F_SCSI, true)
+#else
+#define DEFINE_VIRTIO_BLK_FEATURES(_state, _field) \
+        DEFINE_VIRTIO_COMMON_FEATURES(_state, _field)
+#endif
 #endif