Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932577Ab1EJIdA (ORCPT ); Tue, 10 May 2011 04:33:00 -0400 Received: from p3plsmtps2ded01.prod.phx3.secureserver.net ([208.109.80.58]:35529 "HELO p3plsmtps2ded01-01.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756116Ab1EJIay (ORCPT ); Tue, 10 May 2011 04:30:54 -0400 From: "K. Y. Srinivasan" To: gregkh@suse.de, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org Cc: "K. Y. Srinivasan" , Haiyang Zhang , Abhishek Kane , Hank Janssen Subject: [PATCH 176/206] Staging: hv: Include the contents of netvsc.h Date: Mon, 9 May 2011 14:57:38 -0700 Message-Id: <1304978288-22999-176-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1304978288-22999-1-git-send-email-kys@microsoft.com> References: <1304978242-22958-1-git-send-email-kys@microsoft.com> <1304978288-22999-1-git-send-email-kys@microsoft.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9189 Lines: 324 The subject line says it all. Signed-off-by: K. Y. Srinivasan Signed-off-by: Haiyang Zhang Signed-off-by: Abhishek Kane Signed-off-by: Hank Janssen --- drivers/staging/hv/hyperv_net.h | 297 +++++++++++++++++++++++++++++++++++++++ 1 files changed, 297 insertions(+), 0 deletions(-) diff --git a/drivers/staging/hv/hyperv_net.h b/drivers/staging/hv/hyperv_net.h index 2a00730..37d6bab 100644 --- a/drivers/staging/hv/hyperv_net.h +++ b/drivers/staging/hv/hyperv_net.h @@ -127,4 +127,301 @@ int rndis_filte_device_add(struct hv_device *dev, int rndis_filter_device_remove(struct hv_device *dev); +#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 */ + struct completion 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 /* _HYPERV_NET_H */ -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/