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  1. 02 12月, 2017 14 次提交
  3. 01 12月, 2017 5 次提交
    • R
      net: macb: Added support for RX filtering · ae8223de
      由 Rafal Ozieblo 提交于 
      This patch allows filtering received packets to different
hardware queues (aka ntuple).
Signed-off-by: NRafal Ozieblo <rafalo@cadence.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ae8223de
    • R
      net: macb: Added some queue statistics · 512286bb
      由 Rafal Ozieblo 提交于 
      Added statistics per queue:
- qX_rx_packets
- qX_rx_bytes
- qX_rx_dropped
- qX_tx_packets
- qX_tx_bytes
- qX_tx_dropped
Signed-off-by: NRafal Ozieblo <rafalo@cadence.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      512286bb
    • R
      net: macb: Added support for many RX queues · ae1f2a56
      由 Rafal Ozieblo 提交于 
      To be able for packet reception on different RX queues some
configuration has to be performed. This patch checks how many
hardware queue does GEM support and initializes them.
Signed-off-by: NRafal Ozieblo <rafalo@cadence.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ae1f2a56
    • S
      vmxnet3: increase default rx ring sizes · 7475908f
      由 Shrikrishna Khare 提交于 
      There are several reasons for increasing the receive ring sizes:

1. The original ring size of 256 was chosen about 10 years ago when
vmxnet3 was first created. At that time, 10Gbps Ethernet was not prevalent
and servers were dominated by 1Gbps Ethernet. Now 10Gbps is common place,
and higher bandwidth links -- 25Gbps, 40Gbps, 50Gbps -- are starting
to appear. 256 Rx ring entries are simply not enough to keep up with
higher link speed when there is a burst of network frames coming from
these high speed links. Even with full MTU size frames, they are gone
in a short time. It is also more common to have a mix of frame sizes,
and more likely bi-modal distribution of frame sizes so the average frame
size is not close to full MTU. If we consider average frame size of 800B,
1024 frames that come in a burst takes ~0.65 ms to arrive at 10Gbps. With
256 entires, it takes ~0.16 ms to arrive at 10Gbps.  At 25Gbps or 40Gbps,
this time is reduced accordingly.

2. On a hypervisor where there are many VMs and CPU is over committed,
i.e. the number of VCPUs is more than the number of VCPUs, each PCPU is
in effect time shared between multiple VMs/VCPUs. The time granularity at
which this multiplexing occurs is typically coarser than between processes
on a guest OS. Trying to time slice more finely is not efficient, for
example, if memory cache is barely warmed up when switching from one VM
to another occurs. This CPU overcommit adds delay to when the driver
in a VM can service incoming packets. Whether CPU is over committed
really depends on customer workloads. For certain situations, it is very
common. For example, workloads of desktop VMs and product testing setups.
Consolidation and sharing is what drives efficiency of a customer setup
for such workloads. In these situations, the raw network bandwidth may
not be very high, but the delays between when a VM is running or not
running can also be relatively long.
Signed-off-by: NShrikrishna Khare <skhare@vmware.com>
Acked-by: NJin Heo <heoj@vmware.com>
Acked-by: NGuolin Yang <gyang@vmware.com>
Acked-by: NBoon Ang <bang@vmware.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7475908f
    • F
      net: dsa: bcm_sf2: Utilize b53_get_tag_protocol() · 9f66816a
      由 Florian Fainelli 提交于 
      Utilize the much more capable b53_get_tag_protocol() which takes care of
all Broadcom switches specifics to resolve which port can have Broadcom
tags enabled or not.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      9f66816a
  5. 30 11月, 2017 6 次提交
  7. 29 11月, 2017 9 次提交
  9. 28 11月, 2017 6 次提交