user/sven/linux.git/drivers/net/hyperv/hyperv_net.h, branch v3.16.67

hyperv: Add hash value into RNDIS Per-packet info

2014-05-23T18:49:00Z

It passes the hash value as the RNDIS Per-packet info to the Hyper-V host, so that the send completion notices can be spread across multiple channels. MS-TFS: 140273 Signed-off-by: Haiyang Zhang Signed-off-by: David S. Miller

hyperv: Enable sendbuf mechanism on the send path

2014-04-30T17:48:46Z

We send packets using a copy-free mechanism (this is the Guest to Host transport via VMBUS). While this is obviously optimal for large packets, it may not be optimal for small packets. Hyper-V host supports a second mechanism for sending packets that is "copy based". We implement that mechanism in this patch. In this version of the patch I have addressed a comment from David Miller. With this patch (and all of the other offload and VRSS patches), we are now able to almost saturate a 10G interface between Linux VMs on Hyper-V on different hosts - close to 9 Gbps as measured via iperf. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller

hyperv: Simplify the send_completion variables

2014-04-23T18:48:39Z

The union contains only one member now, so we use the variables in it directly. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Signed-off-by: David S. Miller

hyperv: Remove recv_pkt_list and lock

2014-04-23T18:48:39Z

Removed recv_pkt_list and lock, and updated related code, so that the locking overhead is reduced especially when multiple channels are in use. The recv_pkt_list isn't actually necessary because the packets are processed sequentially in each channel. It has been replaced by a local variable, and the related lock for this list is also removed. The is_data_pkt field is not used in receive path, so its assignment is cleaned up. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Signed-off-by: David S. Miller

hyperv: Add support for virtual Receive Side Scaling (vRSS)

2014-04-21T17:32:29Z

This feature allows multiple channels to be used by each virtual NIC. It is available on Hyper-V host 2012 R2. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Signed-off-by: David S. Miller

Drivers: net: hyperv: Address UDP checksum issues

2014-04-11T19:15:12Z

ws2008r2 does not support UDP checksum offload. Thus, we cannnot turn on UDP offload in the host. Also, on ws2012 and ws2012 r2, there appear to be an issue with UDP checksum offload. Fix this issue by computing the UDP checksum in the Hyper-V driver. Based on Dave Miller's comments, in this version, I have COWed the skb before modifying the UDP header (the checksum field). Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller

hyperv: Change the receive buffer size for legacy hosts

2014-03-10T20:11:26Z

Due to a bug in the Hyper-V host verion 2008R2, we need to use a slightly smaller receive buffer size, otherwise the buffer will not be accepted by the legacy hosts. Signed-off-by: Haiyang Zhang Signed-off-by: David S. Miller

Drivers: net: hyperv: Enable large send offload

2014-03-10T19:51:37Z

Enable segmentation offload. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller

Drivers: net: hyperv: Enable send side checksum offload

2014-03-10T19:51:37Z

Enable send side checksum offload. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller

Drivers: net: hyperv: Enable receive side IP checksum offload

2014-03-10T19:51:37Z

Enable receive side checksum offload. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller