freebsd-skq

History

Matt Macy d7c5a620e2 ifnet: Replace if_addr_lock rwlock with epoch + mutex Run on LLNW canaries and tested by pho@ gallatin: Using a 14-core, 28-HTT single socket E5-2697 v3 with a 40GbE MLX5 based ConnectX 4-LX NIC, I see an almost 12% improvement in received packet rate, and a larger improvement in bytes delivered all the way to userspace. When the host receiving 64 streams of netperf -H $DUT -t UDP_STREAM -- -m 1, I see, using nstat -I mce0 1 before the patch: InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 4.98 0.00 4.42 0.00 4235592 33 83.80 4720653 2149771 1235 247.32 4.73 0.00 4.20 0.00 4025260 33 82.99 4724900 2139833 1204 247.32 4.72 0.00 4.20 0.00 4035252 33 82.14 4719162 2132023 1264 247.32 4.71 0.00 4.21 0.00 4073206 33 83.68 4744973 2123317 1347 247.32 4.72 0.00 4.21 0.00 4061118 33 80.82 4713615 2188091 1490 247.32 4.72 0.00 4.21 0.00 4051675 33 85.29 4727399 2109011 1205 247.32 4.73 0.00 4.21 0.00 4039056 33 84.65 4724735 2102603 1053 247.32 After the patch InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 5.43 0.00 4.20 0.00 3313143 33 84.96 5434214 1900162 2656 245.51 5.43 0.00 4.20 0.00 3308527 33 85.24 5439695 1809382 2521 245.51 5.42 0.00 4.19 0.00 3316778 33 87.54 5416028 1805835 2256 245.51 5.42 0.00 4.19 0.00 3317673 33 90.44 5426044 1763056 2332 245.51 5.42 0.00 4.19 0.00 3314839 33 88.11 5435732 1792218 2499 245.52 5.44 0.00 4.19 0.00 3293228 33 91.84 5426301 1668597 2121 245.52 Similarly, netperf reports 230Mb/s before the patch, and 270Mb/s after the patch Reviewed by: gallatin Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D15366		2018-05-18 20:13:34 +00:00
..
qls_dbg.c
qls_dbg.h
qls_def.h
qls_dump.c
qls_dump.h
qls_glbl.h
qls_hw.c
qls_hw.h
qls_inline.h
qls_ioctl.c
qls_ioctl.h
qls_isr.c
qls_os.c	ifnet: Replace if_addr_lock rwlock with epoch + mutex	2018-05-18 20:13:34 +00:00
qls_os.h
qls_ver.h
README.txt

README.txt

#$FreeBSD$

			README File
		QLogic 8100 series Dual Port
10 Gigabit Ethernet & CNA Adapter Driver for FreeBSD 9.x/10.x

		QLogic Corporation.
		All rights reserved. 


Table of Contents
1. Package Contents 
2. OS Support
3. Supported Features
4. Using the Driver
   4.1 Installing the driver
   4.2 Removing the driver
5. Driver Parameters
6. Additional Notes
7. Contacting Support

1. Package Contents 
 * Documentation 
   - README (this document) version:1.0
   - Release Notes Version:1.0
 * Driver (if_qlxge.ko)
	- FreeBSD 9.x/10.x
 * Firmware: pre-flashed on QLogic adapter;

2. OS Support

The Qlogic 10Gigabit Ethernet/CNA driver is compatible with the 
following OS platforms:
 * FreeBSD 9.x/10.x (64-bit) [Intel EM64T, AMD64]

3. Supported Features
10Gigabit Ethernet NIC/CNA driver supports following features

* Large Segment Offload over TCP IPV4
* Large Segment Offload over TCP IPV6
* Receive Side scaling
* TCP over IPv4 checksum offload
* UDP over IPv4 checksum offload
* IPV4 checksum offload
* TCP over IPv6 checksum offload
* UDP over IPv6 checksum offload
* Jumbo frames
* VLAN Tag


4. Using the driver

 4.1 Installing the driver

   - copy the driver file (if_qlxge.ko) into some directory (say qla_driver)
   - cd <to qla_driver>
   - kldload -v ./if_qlxge.ko

 4.2 Removing the driver
 
  - kldunload if_qlxge

5. Parameters to set prior to installing the driver

   - Add the following lines to /etc/sysctl.conf and reboot the machine prior
     to installing the driver
   
	net.inet.tcp.recvbuf_max=262144
	net.inet.tcp.recvbuf_inc=16384
	kern.ipc.nmbclusters=1000000
	kern.ipc.maxsockbuf=2097152
	net.inet.tcp.recvspace=131072
	net.inet.tcp.sendbuf_max=262144
	net.inet.tcp.sendspace=65536
 
   - If you do not want to reboot the system please run the following commands

	login or su to root

	sysctl net.inet.tcp.recvbuf_max=262144
	sysctl net.inet.tcp.recvbuf_inc=16384
	sysctl kern.ipc.nmbclusters=1000000
	sysctl kern.ipc.maxsockbuf=2097152
	sysctl net.inet.tcp.recvspace=131072
	sysctl net.inet.tcp.sendbuf_max=262144
	sysctl net.inet.tcp.sendspace=65536

7. Contacting Support 
Please feel free to contact your QLogic approved reseller or QLogic 
Technical Support at any phase of integration for assistance. QLogic
Technical Support can be reached by the following methods: 
Web:    http://support.qlogic.com
E-mail: support@qlogic.com
(c) Copyright 2013-14. All rights reserved worldwide. QLogic, the QLogic 
logo, and the Powered by QLogic logo are registered trademarks of
QLogic Corporation. All other brand and product names are trademarks 
or registered trademarks of their respective owners.