* [PATCHv9 net-next 0/4] sunvnet: add jumbo frames support
@ 2014-09-29 23:47 David L Stevens
2014-09-30 21:11 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: David L Stevens @ 2014-09-29 23:47 UTC (permalink / raw)
To: David Miller; +Cc: netdev, Sowmini Varadhan, Raghuram Kothahota
This patch set updates the sunvnet driver to version 1.6 of the VIO protocol
to support per-port exchange of MTU information and allow non-standard MTU
sizes, including jumbo frames.
Using large MTUs shows a nearly 5X throughput improvement Linux-Solaris
and > 10X throughput improvement Linux-Linux.
Changes from v8:
-add a short timeout to free pending skbs if a new transmit doesn't
do it first per Dave Miller <davem@davemloft.net>
Changes from v7:
-handle skb allocation failures in vnet_skb_shape()
per Dave Miller <davem@davemloft.net>
Changes from v6:
-made kernel transmit path zero-copy to remove memory n^2 scaling issue
raised by Raghuram Kothakota <Raghuram.Kothakota@oracle.com>
Changes from v5:
- fixed comment per Sowmini Varadhan <sowmini.varadhan@oracle.com>
Changes from v4:
- changed VNET_MAXPACKET per David Laight <David.Laight@ACULAB.COM>
- added cookies to support non-contiguous buffers of max size
Changes from v3:
- added version functions per Dave Miller <davem@davemloft.net>
- moved rmtu to vnet_port per Dave Miller <davem@davemloft.net>
- explicitly set options bits and capability flags to 0 per
Raghuram Kothakota <Raghuram.Kothakota@oracle.com>
Changes from v2:
- make checkpatch clean
Changes from v1:
- fix brace formatting per Dave Miller <davem@davemloft.net>
David L Stevens (4):
sunvnet: upgrade to VIO protocol version 1.6
sunvnet: make transmit path zero-copy in the kernel
sunvnet: allow admin to set sunvnet MTU
sunvnet: generate ICMP PTMUD messages for smaller port MTUs
arch/sparc/include/asm/vio.h | 44 +++++-
arch/sparc/kernel/ldc.c | 2 +-
arch/sparc/kernel/viohs.c | 14 ++-
drivers/net/ethernet/sun/sunvnet.c | 358 ++++++++++++++++++++++++++++++------
drivers/net/ethernet/sun/sunvnet.h | 16 ++-
5 files changed, 366 insertions(+), 68 deletions(-)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCHv9 net-next 0/4] sunvnet: add jumbo frames support
2014-09-29 23:47 [PATCHv9 net-next 0/4] sunvnet: add jumbo frames support David L Stevens
@ 2014-09-30 21:11 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2014-09-30 21:11 UTC (permalink / raw)
To: david.stevens; +Cc: netdev, sowmini.varadhan, raghuram.kothakota
From: David L Stevens <david.stevens@oracle.com>
Date: Mon, 29 Sep 2014 19:47:47 -0400
> This patch set updates the sunvnet driver to version 1.6 of the VIO protocol
> to support per-port exchange of MTU information and allow non-standard MTU
> sizes, including jumbo frames.
>
> Using large MTUs shows a nearly 5X throughput improvement Linux-Solaris
> and > 10X throughput improvement Linux-Linux.
Looks great, applied to net-next, and as I mentioned I'll push the
arch/sparc bits from patch #1 into the sparc tree too.
^ permalink raw reply [flat|nested] 2+ messages in thread
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