kernel/linux.git/drivers/net/hyperv/hyperv_net.h, branch v4.11.5

netvsc: fix calculation of available send sections

2017-04-25T15:56:59+00:00

My change (introduced in 4.11) to use find_first_clear_bit incorrectly assumed that the size argument was words, not bits. The effect was only a small limited number of the available send sections were being actually used. This can cause performance loss with some workloads. Since map_words is now used only during initialization, it can be on stack instead of in per-device data. Fixes: b58a185801da ("netvsc: simplify get next send section") Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: handle select_queue when device is being removed

2017-03-13T06:13:41+00:00

Move the send indirection table from the inner device (netvsc) to the network device context. It is possible that netvsc_device is not present (remove in progress). This solves potential use after free issues when packet is being created during MTU change, shutdown, or queue count changes. Fixes: d8e18ee0fa96 ("netvsc: enhance transmit select_queue") Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: report per-channel stats in ethtool statistics

2017-01-24T21:29:01+00:00

Report packets and bytes transferred through a vmbus channel via ethtool. This supersedes need for per-cpu statistics. Example: $ ethtool -S eth0 NIC statistics: ... tx_queue_0_packets: 3523179 tx_queue_0_bytes: 505370920 rx_queue_0_packets: 41430490 rx_queue_0_bytes: 62714661254 tx_queue_1_packets: 0 tx_queue_1_bytes: 0 rx_queue_1_packets: 0 rx_queue_1_bytes: 0 ... Reviewed-by: Long Li Reviewed-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: Simon Xiao Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: account for packets/bytes transmitted after completion

2017-01-24T21:29:01+00:00

Most drivers do not increment transmit statistics until after the transmit is completed. This will also be necessary for BQL support. Slight additional complexity because the netvsc driver aggregates multiple packets into one transmit. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: eliminate per-device outstanding send counter

2017-01-24T21:29:01+00:00

Since now keep track of per-queue outstanding sends, we can avoid one atomic update by removing no longer needed per-device atomic. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: simplify rndis_filter_remove

2017-01-24T21:29:00+00:00

All caller's already have pointer to netvsc_device so pass it. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: don't pass void * to internal device_add

2017-01-24T21:29:00+00:00

All the caller's/callee's know that the format of the device_add parameter is a netvsc_device_info struct. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: optimize receive path

2017-01-24T21:29:00+00:00

Do manual optimizations of receive path: - remove checks for impossible conditions (but keep checks for bad data from host) - pass argument down, rather than having callee recompute what is already known - remove indirection about receive buffer datalength - remove dependence on VLAN_TAG_PRESENCE - use _hot/_cold and likely/unlikely Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: group all per-channel state together

2017-01-24T21:28:59+00:00

Put all the per-channel state together in one data struct. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netvsc: allow get/set of RSS indirection table

2017-01-24T21:28:59+00:00

Allow setting receive indirection table. Also uses the system standard for initialization. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller