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Subject[PATCH 175/206] Staging: hv: Include the contents of netvsc_api.h
Date
The subject line says it all.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
---
drivers/staging/hv/hyperv_net.h | 107 +++++++++++++++++++++++++++++++++++++++
1 files changed, 107 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/hv/hyperv_net.h b/drivers/staging/hv/hyperv_net.h
index ce27244..2a00730 100644
--- a/drivers/staging/hv/hyperv_net.h
+++ b/drivers/staging/hv/hyperv_net.h
@@ -21,3 +21,110 @@
* K. Y. Srinivasan <kys@microsoft.com>
*
*/
+
+#ifndef _HYPERV_NET_H
+#define _HYPERV_NET_H
+
+#include <linux/list.h>
+
+
+/* Fwd declaration */
+struct hv_netvsc_packet;
+
+/* Represent the xfer page packet which contains 1 or more netvsc packet */
+struct xferpage_packet {
+ struct list_head list_ent;
+
+ /* # of netvsc packets this xfer packet contains */
+ u32 count;
+};
+
+/* The number of pages which are enough to cover jumbo frame buffer. */
+#define NETVSC_PACKET_MAXPAGE 4
+
+/*
+ * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
+ * within the RNDIS
+ */
+struct hv_netvsc_packet {
+ /* Bookkeeping stuff */
+ struct list_head list_ent;
+
+ struct hv_device *device;
+ bool is_data_pkt;
+
+ /*
+ * Valid only for receives when we break a xfer page packet
+ * into multiple netvsc packets
+ */
+ struct xferpage_packet *xfer_page_pkt;
+
+ union {
+ struct {
+ u64 recv_completion_tid;
+ void *recv_completion_ctx;
+ void (*recv_completion)(void *context);
+ } recv;
+ struct {
+ u64 send_completion_tid;
+ void *send_completion_ctx;
+ void (*send_completion)(void *context);
+ } send;
+ } completion;
+
+ /* This points to the memory after page_buf */
+ void *extension;
+
+ u32 total_data_buflen;
+ /* Points to the send/receive buffer where the ethernet frame is */
+ u32 page_buf_cnt;
+ struct hv_page_buffer page_buf[NETVSC_PACKET_MAXPAGE];
+};
+
+/* Represents the net vsc driver */
+struct netvsc_driver {
+ /* Must be the first field */
+ /* Which is a bug FIXME! */
+ struct hv_driver base;
+
+ u32 ring_buf_size;
+ u32 req_ext_size;
+
+ /*
+ * This is set by the caller to allow us to callback when we
+ * receive a packet from the "wire"
+ */
+ int (*recv_cb)(struct hv_device *dev,
+ struct hv_netvsc_packet *packet);
+ void (*link_status_change)(struct hv_device *dev, u32 status);
+
+ /* Specific to this driver */
+ int (*send)(struct hv_device *dev, struct hv_netvsc_packet *packet);
+
+ void *ctx;
+};
+
+static inline
+struct netvsc_driver *drv_to_netvscdrv(struct device_driver *d)
+{
+ struct hv_driver *hvdrv = drv_to_hv_drv(d);
+ return container_of(hvdrv, struct netvsc_driver, base);
+}
+
+struct netvsc_device_info {
+ unsigned char mac_adr[6];
+ bool link_state; /* 0 - link up, 1 - link down */
+};
+
+/* Interface */
+int netvsc_device_add(struct hv_device *device, void *additional_info);
+int netvsc_device_remove(struct hv_device *device);
+int netvsc_initialize(struct hv_driver *drv);
+int rndis_filter_open(struct hv_device *dev);
+int rndis_filter_close(struct hv_device *dev);
+int rndis_filte_device_add(struct hv_device *dev,
+ void *additional_info);
+int rndis_filter_device_remove(struct hv_device *dev);
+
+
+#endif /* _HYPERV_NET_H */
--
1.7.4.1


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