*
* Unified network-device I/O interface for Xen guest OSes.
*
- * 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) 2003-2004, Keir Fraser
*/
#define _NETTXF_extra_info (3)
#define NETTXF_extra_info (1U<<_NETTXF_extra_info)
-struct netif_tx_request {
+struct xen_netif_tx_request {
grant_ref_t gref; /* Reference to buffer page */
uint16_t offset; /* Offset within buffer page */
uint16_t flags; /* NETTXF_* */
uint16_t id; /* Echoed in response message. */
uint16_t size; /* Packet size in bytes. */
};
-typedef struct netif_tx_request netif_tx_request_t;
/* Types of netif_extra_info descriptors. */
-#define XEN_NETIF_EXTRA_TYPE_NONE (0) /* Never used - invalid */
-#define XEN_NETIF_EXTRA_TYPE_GSO (1) /* u.gso */
-#define XEN_NETIF_EXTRA_TYPE_MCAST_ADD (2) /* u.mcast */
-#define XEN_NETIF_EXTRA_TYPE_MCAST_DEL (3) /* u.mcast */
-#define XEN_NETIF_EXTRA_TYPE_MAX (4)
+#define XEN_NETIF_EXTRA_TYPE_NONE (0) /* Never used - invalid */
+#define XEN_NETIF_EXTRA_TYPE_GSO (1) /* u.gso */
+#define XEN_NETIF_EXTRA_TYPE_MAX (2)
/* netif_extra_info flags. */
#define _XEN_NETIF_EXTRA_FLAG_MORE (0)
* This structure needs to fit within both netif_tx_request and
* netif_rx_response for compatibility.
*/
-struct netif_extra_info {
- uint8_t type; /* XEN_NETIF_EXTRA_TYPE_* */
- uint8_t flags; /* XEN_NETIF_EXTRA_FLAG_* */
-
- union {
- /*
- * XEN_NETIF_EXTRA_TYPE_GSO:
- */
- struct {
- /*
- * Maximum payload size of each segment. For example, for TCP this
- * is just the path MSS.
- */
- uint16_t size;
-
- /*
- * GSO type. This determines the protocol of the packet and any
- * extra features required to segment the packet properly.
- */
- uint8_t type; /* XEN_NETIF_GSO_TYPE_* */
-
- /* Future expansion. */
- uint8_t pad;
-
- /*
- * GSO features. This specifies any extra GSO features required
- * to process this packet, such as ECN support for TCPv4.
- */
- uint16_t features; /* XEN_NETIF_GSO_FEAT_* */
- } gso;
-
- /*
- * XEN_NETIF_EXTRA_TYPE_MCAST_{ADD,DEL}:
- * Backend advertises availability via 'feature-multicast-control'
- * xenbus node containing value '1'.
- * Frontend requests this feature by advertising
- * 'request-multicast-control' xenbus node containing value '1'.
- * If multicast control is requested then multicast flooding is
- * disabled and the frontend must explicitly register its interest
- * in multicast groups using dummy transmit requests containing
- * MCAST_{ADD,DEL} extra-info fragments.
- */
- struct {
- uint8_t addr[6]; /* Address to add/remove. */
- } mcast;
-
- uint16_t pad[3];
- } u;
+struct xen_netif_extra_info {
+ uint8_t type; /* XEN_NETIF_EXTRA_TYPE_* */
+ uint8_t flags; /* XEN_NETIF_EXTRA_FLAG_* */
+
+ union {
+ struct {
+ /*
+ * Maximum payload size of each segment. For
+ * example, for TCP this is just the path MSS.
+ */
+ uint16_t size;
+
+ /*
+ * GSO type. This determines the protocol of
+ * the packet and any extra features required
+ * to segment the packet properly.
+ */
+ uint8_t type; /* XEN_NETIF_GSO_TYPE_* */
+
+ /* Future expansion. */
+ uint8_t pad;
+
+ /*
+ * GSO features. This specifies any extra GSO
+ * features required to process this packet,
+ * such as ECN support for TCPv4.
+ */
+ uint16_t features; /* XEN_NETIF_GSO_FEAT_* */
+ } gso;
+
+ uint16_t pad[3];
+ } u;
};
-typedef struct netif_extra_info netif_extra_info_t;
-struct netif_tx_response {
- uint16_t id;
- int16_t status; /* NETIF_RSP_* */
+struct xen_netif_tx_response {
+ uint16_t id;
+ int16_t status; /* NETIF_RSP_* */
};
-typedef struct netif_tx_response netif_tx_response_t;
-struct netif_rx_request {
- uint16_t id; /* Echoed in response message. */
- grant_ref_t gref; /* Reference to incoming granted frame */
+struct xen_netif_rx_request {
+ uint16_t id; /* Echoed in response message. */
+ grant_ref_t gref; /* Reference to incoming granted frame */
};
-typedef struct netif_rx_request netif_rx_request_t;
/* Packet data has been validated against protocol checksum. */
#define _NETRXF_data_validated (0)
#define _NETRXF_extra_info (3)
#define NETRXF_extra_info (1U<<_NETRXF_extra_info)
-struct netif_rx_response {
+struct xen_netif_rx_response {
uint16_t id;
uint16_t offset; /* Offset in page of start of received packet */
uint16_t flags; /* NETRXF_* */
int16_t status; /* -ve: BLKIF_RSP_* ; +ve: Rx'ed pkt size. */
};
-typedef struct netif_rx_response netif_rx_response_t;
/*
* Generate netif ring structures and types.
*/
-#if defined(CONFIG_XEN) || defined(HAVE_XEN_PLATFORM_COMPAT_H)
-DEFINE_RING_TYPES(netif_tx, struct netif_tx_request, struct netif_tx_response);
-DEFINE_RING_TYPES(netif_rx, struct netif_rx_request, struct netif_rx_response);
-#else
-#define xen_netif_tx_request netif_tx_request
-#define xen_netif_rx_request netif_rx_request
-#define xen_netif_tx_response netif_tx_response
-#define xen_netif_rx_response netif_rx_response
DEFINE_RING_TYPES(xen_netif_tx,
struct xen_netif_tx_request,
struct xen_netif_tx_response);
DEFINE_RING_TYPES(xen_netif_rx,
struct xen_netif_rx_request,
struct xen_netif_rx_response);
-#define xen_netif_extra_info netif_extra_info
-#endif
#define NETIF_RSP_DROPPED -2
#define NETIF_RSP_ERROR -1
projects / linux-flexiantxendom0-3.2.10.git / blobdiff