linux/drivers/net/hyperv/hyperv_net.h, branch v4.9

hv_netvsc: fix comments

2016-09-24T13:36:12Z

Typo's and spelling errors. Also remove old comment from staging era. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

hv_netvsc: count multicast packets received

2016-09-23T12:39:49Z

Useful for debugging issues with multicast and SR-IOV to keep track of number of received multicast packets. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

hv_netvsc: remove VF in flight counters

2016-09-23T12:39:49Z

Since VF reference is now protected by RCU, no longer need the VF usage counter and can use device flags to see whether to inject or not. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

hv_netvsc: use RCU to protect vf_netdev

2016-09-23T12:39:49Z

The vf_netdev pointer in the netvsc device context can simply be protected by RCU because network device destruction is already RCU synchronized. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

hv_netvsc: add ethtool statistics for tx packet issues

2016-08-23T19:05:38Z

Printing console messages is not helpful when system is out of memory; and can be disastrous with netconsole. Instead keep statistics of these anomalous conditions. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

hv_netvsc: make device_remove void

2016-08-23T19:05:37Z

Always returns 0 and no callers check. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

hv_netvsc: make RSS hash key static

2016-08-23T19:05:36Z

Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

hv_netvsc: Implement batching of receive completions

2016-08-20T05:41:19Z

The existing code uses busy retry when unable to send out receive completions due to full ring buffer. It also gives up retrying after limit is reached, and causes receive buffer slots not being recycled. This patch implements batching of receive completions. It also prevents dropping receive completions due to full ring buffer. Signed-off-by: Haiyang Zhang Reviewed-by: Stephen Hemminger Signed-off-by: David S. Miller

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

2016-08-18T05:17:32Z

Minor overlapping changes for both merge conflicts. Resolution work done by Stephen Rothwell was used as a reference. Signed-off-by: David S. Miller

hv_netvsc: avoid deadlocks between rtnl lock and vf_use_cnt wait

2016-08-15T20:48:07Z

Here is a deadlock scenario: - netvsc_vf_up() schedules netvsc_notify_peers() work and quits. - netvsc_vf_down() runs before netvsc_notify_peers() gets executed. As it is being executed from netdev notifier chain we hold rtnl lock when we get here. - we enter while (atomic_read(&net_device_ctx->vf_use_cnt) != 0) loop and wait till netvsc_notify_peers() drops vf_use_cnt. - netvsc_notify_peers() starts on some other CPU but netdev_notify_peers() will hang on rtnl_lock(). - deadlock! Instead of introducing additional synchronization I suggest we drop gwrk.dwrk completely and call NETDEV_NOTIFY_PEERS directly. As we're acting under rtnl lock this is legitimate. Signed-off-by: Vitaly Kuznetsov Acked-by: Haiyang Zhang Signed-off-by: David S. Miller