linux/drivers/net/hyperv, branch v3.5

net/hyperv: Use wait_event on outstanding sends during device removal

2012-06-04T17:50:38Z

Change the busy-waiting/udelay to wait_event on outstanding sends. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Signed-off-by: David S. Miller

usb/net: rndis: merge command codes

2012-05-12T19:11:18Z

Switch the hyperv filter and rndis gadget driver to use the same command enumerators as the other drivers and delete the surplus command codes. Reviewed-by: Haiyang Zhang Signed-off-by: Linus Walleij Signed-off-by: David S. Miller

usb/net: rndis: remove ambigous status codes

2012-05-12T19:03:14Z

The RNDIS status codes are redefined with much stranged ifdeffery and only one of these codes was used in the hyperv driver, and there it is very clearly referring to the RNDIS variant, not some other status. So clarify this by explictly using the RNDIS_* prefixed status code in the hyperv drivera and delete the duplicate defines. Reviewed-by: Haiyang Zhang Signed-off-by: Linus Walleij Signed-off-by: David S. Miller

usb/net: rndis: break out defines

2012-05-12T19:02:22Z

As a first step to consolidate the RNDIS implementations, break out a common file with all the #defines and move it to . This also deletes the immediate duplicated defines in the file that yields a lot of compilation warnings. Reviewed-by: Haiyang Zhang Signed-off-by: Linus Walleij Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-04-24T03:15:17Z

Fix merge between commit 3adadc08cc1e ("net ax25: Reorder ax25_exit to remove races") and commit 0ca7a4c87d27 ("net ax25: Simplify and cleanup the ax25 sysctl handling") The former moved around the sysctl register/unregister calls, the later simply removed them. With help from Stephen Rothwell. Signed-off-by: David S. Miller

net/hyperv: Adding cancellation to ensure rndis filter is closed

2012-04-21T19:38:10Z

Although the network interface is down, the RX packets number which could be observed by ifconfig may keep on increasing. This is because the WORK scheduled in netvsc_set_multicast_list() may be executed after netvsc_close(). That means the rndis filter may be re-enabled by do_set_multicast() even if it was closed by netvsc_close(). By canceling possible WORK before close the rndis filter, the issue could be never happened. Signed-off-by: Wenqi Ma Reviewed-by: Wei Yongjun Signed-off-by: David S. Miller

net/hyperv: Add flow control based on hi/low watermark

2012-04-03T21:47:15Z

In the existing code, we only stop queue when the ringbuffer is full, so the current packet has to be dropped or retried from upper layer. This patch stops the tx queue when available ringbuffer is below the low watermark. So the ringbuffer still has small amount of space available for the current packet. This will reduce the overhead of retries on sending. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Signed-off-by: David S. Miller

net/hyperv: Fix the code handling tx busy

2012-03-19T21:27:06Z

Instead of dropping the packet, we keep the skb buffer, and return NETDEV_TX_BUSY to let upper layer retry send. This will not cause endless loop, because the host is taking data away from ring buffer, and we have called the stop_queue before returning NETDEV_TX_BUSY. The stop_queue was called in the function netvsc_send() in file netvsc.c, then it returns to rndis_filter_send(), which returns to netvsc_start_xmit() in file netvsc_drv.c. So the NETDEV_TX_BUSY is indeed returned AFTER queue is stopped. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Acked-by: Eric Dumazet Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-03-19T03:29:41Z

net/hyperv: fix erroneous NETDEV_TX_BUSY use

2012-03-16T09:01:17Z

A driver start_xmit() method cannot free skb and return NETDEV_TX_BUSY, since caller is going to reuse freed skb. This is mostly a revert of commit bf769375c (staging: hv: fix the return status of netvsc_start_xmit()) In fact netif_tx_stop_queue() / netif_stop_queue() is needed before returning NETDEV_TX_BUSY or you can trigger a ksoftirqd fatal loop. In case of memory allocation error, only safe way is to drop the packet and return NETDEV_TX_OK Signed-off-by: Eric Dumazet Cc: "K. Y. Srinivasan" Cc: Haiyang Zhang Cc: Greg Kroah-Hartman Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller