WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-changelog

[Xen-changelog] [xen-unstable] Add PVUSB and PVSCSI interface headers.

To: xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-changelog] [xen-unstable] Add PVUSB and PVSCSI interface headers.
From: Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 18 Mar 2009 10:35:09 -0700
Delivery-date: Wed, 18 Mar 2009 10:35:49 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-changelog-request@lists.xensource.com?subject=help>
List-id: BK change log <xen-changelog.lists.xensource.com>
List-post: <mailto:xen-changelog@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=unsubscribe>
Reply-to: xen-devel@xxxxxxxxxxxxxxxxxxx
Sender: xen-changelog-bounces@xxxxxxxxxxxxxxxxxxx
# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1237390967 0
# Node ID bedd3906979e98e2c84499a8c92a51cebfdae6fd
# Parent  fe4b23bd3a954a640c922202249688eb1b981ce0
Add PVUSB and PVSCSI interface headers.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
 xen/include/public/io/usbif.h   |  121 ++++++++++++++++++++++++++++++++++++++++
 xen/include/public/io/vscsiif.h |  105 ++++++++++++++++++++++++++++++++++
 2 files changed, 226 insertions(+)

diff -r fe4b23bd3a95 -r bedd3906979e xen/include/public/io/usbif.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/public/io/usbif.h     Wed Mar 18 15:42:47 2009 +0000
@@ -0,0 +1,121 @@
+/*
+ * usbif.h
+ *
+ * USB I/O interface for Xen guest OSes.
+ *
+ * Copyright (C) 2009, FUJITSU LABORATORIES LTD.
+ * Author: Noboru Iwamatsu <n_iwamatsu@xxxxxxxxxxxxxx>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __XEN_PUBLIC_IO_USBIF_H__
+#define __XEN_PUBLIC_IO_USBIF_H__
+
+#include "ring.h"
+#include "../grant_table.h"
+
+/*
+ *  USB pipe in usbif_request
+ *
+ *  bits 0-5 are specific bits for virtual USB driver.
+ *  bits 7-31 are standard urb pipe.
+ *
+ *  - port number(NEW):        bits 0-4
+ *                             (USB_MAXCHILDREN is 31)
+ *
+ *  - operation flag(NEW):     bit 5
+ *                             (0 = submit urb,
+ *                              1 = unlink urb)
+ *
+ *  - direction:               bit 7
+ *                             (0 = Host-to-Device [Out]
+ *                           1 = Device-to-Host [In])
+ *
+ *  - device address:  bits 8-14
+ *
+ *  - endpoint:                bits 15-18
+ *
+ *  - pipe type:               bits 30-31
+ *                             (00 = isochronous, 01 = interrupt,
+ *                           10 = control, 11 = bulk)
+ */
+#define usbif_pipeportnum(pipe) ((pipe) & 0x1f)
+#define usbif_setportnum_pipe(pipe,portnum) \
+       ((pipe)|(portnum))
+#define usbif_pipeunlink(pipe) ((pipe) & 0x20)
+#define usbif_setunlink_pipe(pipe) ((pipe)|(0x20))
+
+#define USBIF_BACK_MAX_PENDING_REQS (128)
+#define USBIF_MAX_SEGMENTS_PER_REQUEST (10)
+
+struct usbif_request_segment {
+       grant_ref_t gref;
+       uint16_t offset;
+       uint16_t length;
+};
+
+struct usbif_request {
+       uint16_t id; /* request id */
+       uint16_t nr_buffer_segs; /* number of urb->transfer_buffer segments */
+
+       /* basic urb parameter */
+       uint32_t pipe;
+       uint16_t transfer_flags;
+       uint16_t buffer_length;
+       union {
+               uint8_t ctrl[8]; /* setup_packet (Ctrl) */
+
+               struct {
+                       uint16_t interval; /* maximum (1024*8) in usb core */
+                       uint16_t start_frame; /* start frame */
+                       uint16_t number_of_packets; /* number of ISO packet */
+                       uint16_t nr_frame_desc_segs; /* number of 
iso_frame_desc segments */
+               } isoc;
+
+               struct {
+                       uint16_t interval; /* maximum (1024*8) in usb core */
+                       uint16_t pad[3];
+               } intr;
+
+               struct {
+                       uint16_t unlink_id; /* unlink request id */
+                       uint16_t pad[3];
+               } unlink;
+
+       } u;
+
+       /* urb data segments */
+       struct usbif_request_segment seg[USBIF_MAX_SEGMENTS_PER_REQUEST];
+};
+typedef struct usbif_request usbif_request_t;
+
+struct usbif_response {
+       uint16_t id; /* request id */
+       uint16_t start_frame;  /* start frame (ISO) */
+       int32_t status; /* status (non-ISO) */
+       int32_t actual_length; /* actual transfer length */
+       int32_t error_count; /* number of ISO errors */
+};
+typedef struct usbif_response usbif_response_t;
+
+DEFINE_RING_TYPES(usbif, struct usbif_request, struct usbif_response);
+#define USB_RING_SIZE __RING_SIZE((struct usbif_sring *)0, PAGE_SIZE)
+
+#endif /* __XEN_PUBLIC_IO_USBIF_H__ */
diff -r fe4b23bd3a95 -r bedd3906979e xen/include/public/io/vscsiif.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/public/io/vscsiif.h   Wed Mar 18 15:42:47 2009 +0000
@@ -0,0 +1,105 @@
+/******************************************************************************
+ * vscsiif.h
+ * 
+ * Based on the blkif.h code.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright(c) FUJITSU Limited 2008.
+ */
+
+#ifndef __XEN__PUBLIC_IO_SCSI_H__
+#define __XEN__PUBLIC_IO_SCSI_H__
+
+#include "ring.h"
+#include "../grant_table.h"
+
+/* command between backend and frontend */
+#define VSCSIIF_ACT_SCSI_CDB         1    /* SCSI CDB command */
+#define VSCSIIF_ACT_SCSI_ABORT       2    /* SCSI Device(Lun) Abort*/
+#define VSCSIIF_ACT_SCSI_RESET       3    /* SCSI Device(Lun) Reset*/
+
+
+#define VSCSIIF_BACK_MAX_PENDING_REQS    128
+
+/*
+ * Maximum scatter/gather segments per request.
+ *
+ * Considering balance between allocating al least 16 "vscsiif_request"
+ * structures on one page (4096bytes) and number of scatter gather 
+ * needed, we decided to use 26 as a magic number.
+ */
+#define VSCSIIF_SG_TABLESIZE             26
+
+/*
+ * base on linux kernel 2.6.18
+ */
+#define VSCSIIF_MAX_COMMAND_SIZE         16
+#define VSCSIIF_SENSE_BUFFERSIZE         96
+
+
+struct vscsiif_request {
+    uint16_t rqid;          /* private guest value, echoed in resp  */
+    uint8_t act;            /* command between backend and frontend */
+    uint8_t cmd_len;
+
+    uint8_t cmnd[VSCSIIF_MAX_COMMAND_SIZE];
+    uint16_t timeout_per_command;     /* The command is issued by twice 
+                                         the value in Backend. */
+    uint16_t channel, id, lun;
+    uint16_t padding;
+    uint8_t sc_data_direction;        /* for DMA_TO_DEVICE(1)
+                                         DMA_FROM_DEVICE(2)
+                                         DMA_NONE(3) requests  */
+    uint8_t nr_segments;              /* Number of pieces of scatter-gather */
+
+    struct scsiif_request_segment {
+        grant_ref_t gref;
+        uint16_t offset;
+        uint16_t length;
+    } seg[VSCSIIF_SG_TABLESIZE];
+    uint32_t reserved[3];
+};
+typedef struct vscsiif_request vscsiif_request_t;
+
+struct vscsiif_response {
+    uint16_t rqid;
+    uint8_t padding;
+    uint8_t sense_len;
+    uint8_t sense_buffer[VSCSIIF_SENSE_BUFFERSIZE];
+    int32_t rslt;
+    uint32_t residual_len;     /* request bufflen - 
+                                  return the value from physical device */
+    uint32_t reserved[36];
+};
+typedef struct vscsiif_response vscsiif_response_t;
+
+DEFINE_RING_TYPES(vscsiif, struct vscsiif_request, struct vscsiif_response);
+
+
+#endif  /*__XEN__PUBLIC_IO_SCSI_H__*/
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog

<Prev in Thread] Current Thread [Next in Thread>
  • [Xen-changelog] [xen-unstable] Add PVUSB and PVSCSI interface headers., Xen patchbot-unstable <=