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Diffstat (limited to 'drivers/staging/hv/netvsc.h')
| -rw-r--r-- | drivers/staging/hv/netvsc.h | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/drivers/staging/hv/netvsc.h b/drivers/staging/hv/netvsc.h deleted file mode 100644 index 45d24b9d91a..00000000000 --- a/drivers/staging/hv/netvsc.h +++ /dev/null @@ -1,332 +0,0 @@ -/* - * - * Copyright (c) 2009, Microsoft Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. - * - * Authors: - * Haiyang Zhang <haiyangz@microsoft.com> - * Hank Janssen <hjanssen@microsoft.com> - * - */ - - -#ifndef _NETVSC_H_ -#define _NETVSC_H_ - -#include <linux/list.h> -#include "vmbus_packet_format.h" -#include "vmbus_channel_interface.h" -#include "netvsc_api.h" - - -#define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF) - -#define NVSP_PROTOCOL_VERSION_1 2 -#define NVSP_MIN_PROTOCOL_VERSION NVSP_PROTOCOL_VERSION_1 -#define NVSP_MAX_PROTOCOL_VERSION NVSP_PROTOCOL_VERSION_1 - -enum { - NVSP_MSG_TYPE_NONE = 0, - - /* Init Messages */ - NVSP_MSG_TYPE_INIT = 1, - NVSP_MSG_TYPE_INIT_COMPLETE = 2, - - NVSP_VERSION_MSG_START = 100, - - /* Version 1 Messages */ - NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START, - - NVSP_MSG1_TYPE_SEND_RECV_BUF, - NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE, - NVSP_MSG1_TYPE_REVOKE_RECV_BUF, - - NVSP_MSG1_TYPE_SEND_SEND_BUF, - NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE, - NVSP_MSG1_TYPE_REVOKE_SEND_BUF, - - NVSP_MSG1_TYPE_SEND_RNDIS_PKT, - NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE, - - /* - * This should be set to the number of messages for the version with - * the maximum number of messages. - */ - NVSP_NUM_MSG_PER_VERSION = 9, -}; - -enum { - NVSP_STAT_NONE = 0, - NVSP_STAT_SUCCESS, - NVSP_STAT_FAIL, - NVSP_STAT_PROTOCOL_TOO_NEW, - NVSP_STAT_PROTOCOL_TOO_OLD, - NVSP_STAT_INVALID_RNDIS_PKT, - NVSP_STAT_BUSY, - NVSP_STAT_MAX, -}; - -struct nvsp_message_header { - u32 msg_type; -}; - -/* Init Messages */ - -/* - * This message is used by the VSC to initialize the channel after the channels - * has been opened. This message should never include anything other then - * versioning (i.e. this message will be the same for ever). - */ -struct nvsp_message_init { - u32 min_protocol_ver; - u32 max_protocol_ver; -} __packed; - -/* - * This message is used by the VSP to complete the initialization of the - * channel. This message should never include anything other then versioning - * (i.e. this message will be the same for ever). - */ -struct nvsp_message_init_complete { - u32 negotiated_protocol_ver; - u32 max_mdl_chain_len; - u32 status; -} __packed; - -union nvsp_message_init_uber { - struct nvsp_message_init init; - struct nvsp_message_init_complete init_complete; -} __packed; - -/* Version 1 Messages */ - -/* - * This message is used by the VSC to send the NDIS version to the VSP. The VSP - * can use this information when handling OIDs sent by the VSC. - */ -struct nvsp_1_message_send_ndis_version { - u32 ndis_major_ver; - u32 ndis_minor_ver; -} __packed; - -/* - * This message is used by the VSC to send a receive buffer to the VSP. The VSP - * can then use the receive buffer to send data to the VSC. - */ -struct nvsp_1_message_send_receive_buffer { - u32 gpadl_handle; - u16 id; -} __packed; - -struct nvsp_1_receive_buffer_section { - u32 offset; - u32 sub_alloc_size; - u32 num_sub_allocs; - u32 end_offset; -} __packed; - -/* - * This message is used by the VSP to acknowledge a receive buffer send by the - * VSC. This message must be sent by the VSP before the VSP uses the receive - * buffer. - */ -struct nvsp_1_message_send_receive_buffer_complete { - u32 status; - u32 num_sections; - - /* - * The receive buffer is split into two parts, a large suballocation - * section and a small suballocation section. These sections are then - * suballocated by a certain size. - */ - - /* - * For example, the following break up of the receive buffer has 6 - * large suballocations and 10 small suballocations. - */ - - /* - * | Large Section | | Small Section | - * ------------------------------------------------------------ - * | | | | | | | | | | | | | | | | | | - * | | - * LargeOffset SmallOffset - */ - - struct nvsp_1_receive_buffer_section sections[1]; -} __packed; - -/* - * This message is sent by the VSC to revoke the receive buffer. After the VSP - * completes this transaction, the vsp should never use the receive buffer - * again. - */ -struct nvsp_1_message_revoke_receive_buffer { - u16 id; -}; - -/* - * This message is used by the VSC to send a send buffer to the VSP. The VSC - * can then use the send buffer to send data to the VSP. - */ -struct nvsp_1_message_send_send_buffer { - u32 gpadl_handle; - u16 id; -} __packed; - -/* - * This message is used by the VSP to acknowledge a send buffer sent by the - * VSC. This message must be sent by the VSP before the VSP uses the sent - * buffer. - */ -struct nvsp_1_message_send_send_buffer_complete { - u32 status; - - /* - * The VSC gets to choose the size of the send buffer and the VSP gets - * to choose the sections size of the buffer. This was done to enable - * dynamic reconfigurations when the cost of GPA-direct buffers - * decreases. - */ - u32 section_size; -} __packed; - -/* - * This message is sent by the VSC to revoke the send buffer. After the VSP - * completes this transaction, the vsp should never use the send buffer again. - */ -struct nvsp_1_message_revoke_send_buffer { - u16 id; -}; - -/* - * This message is used by both the VSP and the VSC to send a RNDIS message to - * the opposite channel endpoint. - */ -struct nvsp_1_message_send_rndis_packet { - /* - * This field is specified by RNIDS. They assume there's two different - * channels of communication. However, the Network VSP only has one. - * Therefore, the channel travels with the RNDIS packet. - */ - u32 channel_type; - - /* - * This field is used to send part or all of the data through a send - * buffer. This values specifies an index into the send buffer. If the - * index is 0xFFFFFFFF, then the send buffer is not being used and all - * of the data was sent through other VMBus mechanisms. - */ - u32 send_buf_section_index; - u32 send_buf_section_size; -} __packed; - -/* - * This message is used by both the VSP and the VSC to complete a RNDIS message - * to the opposite channel endpoint. At this point, the initiator of this - * message cannot use any resources associated with the original RNDIS packet. - */ -struct nvsp_1_message_send_rndis_packet_complete { - u32 status; -}; - -union nvsp_1_message_uber { - struct nvsp_1_message_send_ndis_version send_ndis_ver; - - struct nvsp_1_message_send_receive_buffer send_recv_buf; - struct nvsp_1_message_send_receive_buffer_complete - send_recv_buf_complete; - struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf; - - struct nvsp_1_message_send_send_buffer send_send_buf; - struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete; - struct nvsp_1_message_revoke_send_buffer revoke_send_buf; - - struct nvsp_1_message_send_rndis_packet send_rndis_pkt; - struct nvsp_1_message_send_rndis_packet_complete - send_rndis_pkt_complete; -} __packed; - -union nvsp_all_messages { - union nvsp_message_init_uber init_msg; - union nvsp_1_message_uber v1_msg; -} __packed; - -/* ALL Messages */ -struct nvsp_message { - struct nvsp_message_header hdr; - union nvsp_all_messages msg; -} __packed; - - - - -/* #define NVSC_MIN_PROTOCOL_VERSION 1 */ -/* #define NVSC_MAX_PROTOCOL_VERSION 1 */ - -#define NETVSC_SEND_BUFFER_SIZE (64*1024) /* 64K */ -#define NETVSC_SEND_BUFFER_ID 0xface - - -#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024) /* 1MB */ - -#define NETVSC_RECEIVE_BUFFER_ID 0xcafe - -#define NETVSC_RECEIVE_SG_COUNT 1 - -/* Preallocated receive packets */ -#define NETVSC_RECEIVE_PACKETLIST_COUNT 256 - -#define NETVSC_PACKET_SIZE 2048 - -/* Per netvsc channel-specific */ -struct netvsc_device { - struct hv_device *dev; - - atomic_t refcnt; - atomic_t num_outstanding_sends; - /* - * List of free preallocated hv_netvsc_packet to represent receive - * packet - */ - struct list_head recv_pkt_list; - spinlock_t recv_pkt_list_lock; - - /* Send buffer allocated by us but manages by NetVSP */ - void *send_buf; - u32 send_buf_size; - u32 send_buf_gpadl_handle; - u32 send_section_size; - - /* Receive buffer allocated by us but manages by NetVSP */ - void *recv_buf; - u32 recv_buf_size; - u32 recv_buf_gpadl_handle; - u32 recv_section_cnt; - struct nvsp_1_receive_buffer_section *recv_section; - - /* Used for NetVSP initialization protocol */ - int wait_condition; - wait_queue_head_t channel_init_wait; - struct nvsp_message channel_init_pkt; - - struct nvsp_message revoke_packet; - /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */ - - /* Holds rndis device info */ - void *extension; -}; - -#endif /* _NETVSC_H_ */ |