Changeset 80437 in vbox for trunk/src/VBox/Devices/VirtIO/Virtio_1_0.h

Timestamp:

Aug 27, 2019 8:44:58 AM (6 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

132925

Message:

Storage/DevVirtioSCSI.cpp: Basic round-trip I/O implemented for request and control commands. Debugging and refining this. See bugref:9440, Comment 56 for more information

File:

• trunk/src/VBox/Devices/VirtIO/Virtio_1_0.h (modified) (3 diffs)

trunk/src/VBox/Devices/VirtIO/Virtio_1_0.h

@@ -37 +37 @@
 #define VIRTQ_MAX_SIZE                      1024                 /**< Max size (# desc elements) of a virtq    */
 #define VIRTQ_MAX_CNT                       24                   /**< Max queues we allow guest to create      */
-
 #define VIRTIO_NOTIFY_OFFSET_MULTIPLIER     2                    /**< VirtIO Notify Cap. MMIO config param     */
 #define VIRTIOSCSI_REGION_MEM_IO            0                    /**< BAR for MMIO (implementation specific)   */
@@ -214 +213 @@
  * @param hVirtio   - Handle for VirtIO framework
  * @param qIdx      - Queue number
+ * @param pSgBuf    - Caller's sgbuf of one or more virtual memory segments
+ *                    to write to the queue. This is useful because some kinds
+ *                    of transactions involve variable length sub-components
+ *                    whose size can only be known near the time of writing.
+ * @parame fFence   - If set put up copy fence (memory barrier) after
+ *                    copying to guest phys. mem.
  *
  * @returns           VINF_SUCCESS         - Success
@@ -219 +224 @@
  *                    VERR_NOT_AVAILABLE   - Queue is empty
  */
-int virtioQueuePut(VIRTIOHANDLE hVirtio, uint16_t qIdx, uint32_t cb);
+int virtioQueuePut(VIRTIOHANDLE hVirtio, uint16_t qIdx, PRTSGBUF pSgBuf, bool fFence);
 
 /**