linux ping sendmsg: no buffer space available
redhat linux as 5.5 （x86_64）
HP DL388 Gen8
症狀：
網絡配置完成up網卡之後系統正常。
外部app連接到該機器後請求服務網絡即斷開！
通過ping -t網關可以觀察到此症狀！
ping sendmsg: no buffer space available
ping sendmsg: no buffer space available
ping sendmsg: no buffer space available
ping sendmsg: no buffer space available
ping sendmsg: no buffer space available
ping sendmsg: no buffer space available
解決辦法：
更新該HP DL388 Gen8服務器網卡。
驅動下載頁面：http://www.broadcom.com/support/ethernet_nic/netxtreme_server.php
查找到網卡型號，去網卡驅動網站下載相應的driver更新網卡驅動即可。
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tg3-3.122n.tar.gz
tg3_sup-3.122n-1.ISO.tar.gz
ChangeLog
tg3-3.122n-1.src.rpm
README.TXT
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README.TXT 如下：
Installation Notes
Broadcom tg3 Linux Driver
Version 3.122n
03/09/2012
Broadcom Corporation
5300 California Avenue
Irvine, California 92617
Copyright (c) 2004 - 2012 Broadcom Corporation
All rights reserved
Table of Contents
=================
Introduction
Limitations
Packaging
Driver Build Options
Installing Source RPM Package
Building Driver From TAR File
Driver Settings
Driver Defaults
Unloading and Removing Driver
Driver Messages
Introduction
============
This file describes the tg3 Linux driver for the Broadcom NetXtreme
10/100/1000 Mbps PCI/PCI-X/PCI Express Ethernet Network Controllers.
The latest driver is in the latest 3.x Linux kernel. It can also be
downloaded from http://www.broadcom.com as a source package, but is
generally not necessary to do so if you are using the latest 3.x
upstream kernel from http://www.kernel.org or one of the latest
vendor kernels from Red Hat, SuSE, or others.
The tg3 driver from the Broadcom package is almost identical to the
tg3 driver in the latest 3.x upstream Linux kernel. It includes some
additional kernel compatible code to allow it to compile on older 2.6
and some 2.4 kernels. The version number is also similar but generally
has a one letter suffix at the end, (e.g. 3.55b) to distinguish it from
the in-kernel tg3 driver.
The next few sections on packaging, compiling, and installation apply
mostly to the Broadcom driver package only.
Limitations
===========
The current version of the driver has been tested on 2.4.x kernels starting
from 2.4.24 and all 2.6.x/3.x kernels. The driver may not compile on kernels
older than 2.4.24. Testing is concentrated on i386 and x86_64 architectures.
Only limited testing has been done on some other architectures such as
powerpc and sparc64.
Minor changes to some source files and Makefile may be needed on some
kernels.
Forcing 1 Gigabit speed in a copper environment is not supported and may
result in connection issues with certain switches.
SLES 11 Considerations
======================
Starting with SLES 11, all modules not compiled by Novell will refuse to load
through modprobe by default. Externally compiled modules can be loaded if the
"allow_unsupported_modules" flag is toggled in
/etc/modprobe.d/unsupported-modules, however this will render your kernel and
whole system unsupportable through Novell. Please refer to the SLES 11 release
notes for more details.
Packaging
=========
To replace an older previously installed or in-kernel tg3 driver, follow
the instructions below.
The driver package from http://www.broadcom.com is released in two packaging
formats: source RPM and compressed tar formats. The file names for the two
packages are tg3-<version>.src.rpm and tg3-<version>.tar.gz respectively.
Identical source files to build the driver are included in both packages.
Driver Build Options
====================
This version of the tg3 driver contains support for Energy Efficient Ethernet.
The feature is on by default but can be disabled at compile time by adding
"TG3_EXTRA_DEFS=TG3_NO_EEE" to the make command line.
Installing Source RPM Package
=============================
The following are general guidelines for installing the driver.
1. Install the source RPM package:
rpm -ivh tg3-<version>.src.rpm
2. CD to the RPM path and build the binary driver for your kernel:
cd /usr/src/{redhat,OpenLinux,turbo,packages,rpm ..}
rpm -bb SPECS/tg3.spec
or
rpmbuild -bb SPECS/tg3.spec (for RPM version 4.x.x)
Note that the RPM path is different for different Linux distributions.
The driver will be compiled for the running kernel by default. To build
the driver for a kernel different than the running one, specify the
kernel by defining it in KVER:
rpmbuild -bb SPECS/tg3.spec --define "KVER <kernel version>"
where <kernel version> in the form of 2.x.y-z is the version of another
kernel that is installed on the system.
3. Install the newly built package (driver and man page):
rpm -ivh RPMS/<arch>/tg3-<version>.<arch>.rpm
<arch> is the architecture of the machine, e.g. i386:
rpm -ivh RPMS/i386/tg3-<version>.i386.rpm
Note that the --force option may be needed on some Linux distributions
if conflicts are reported.
The driver will be installed in the following path:
2.4.x kernels:
/lib/modules/<kernel_version>/kernel/drivers/net/tg3.o
2.6.x/3.x kernels:
/lib/modules/<kernel_version>/kernel/drivers/net/tg3.ko
4. Load the driver:
insmod tg3.o
or
insmod tg3.ko (on 2.6.x/3.x kernels)
or
modprobe tg3
5. To configure network protocol and address, refer to various Linux
documentations.
Building Driver From TAR File
=============================
The following are general guidelines for installing the driver.
1. Create a directory and extract the files:
tar xvzf tg3-<version>.tar.gz
2. Build the driver tg3.o (or tg3.ko) as a loadable module for the
running kernel:
cd src
make
The driver will be compiled for the running kernel by default. To build
the driver for a kernel different than the running one, specify the
kernel by defining it in KVER:
make KVER=<kernel version>
where <kernel version> in the form of 2.x.y-z is the version of another
kernel that is installed on the system.
3. Test the driver by loading it:
insmod tg3.o
or
insmod tg3.ko (on 2.6.x/3.x kernels)
or
insmod tg3
4. Install the driver:
make install
See RPM instructions above for the location of the installed driver.
5. To configure network protocol and address, refer to various Linux
documentations.
Driver Settings
===============
This version of the tg3 driver supports one module parameter that is
not available in the in-kernel driver. The parameter is named tg3_disable_eee.
To disable Energy Efficient Ethernet (EEE) support, set this module parameter
to 1.
The rest of the sections below apply to both the in-kernel tg3
driver and the tg3 driver package from Broadcom.
Driver settings can be queried and changed using ethtool. The latest ethtool
can be downloaded from
ftp://ftp.kernel.org/pub/software/network/ethtool if
it is not already installed. The following are some common examples on how to
use ethtool. See the ethtool man page for more information. ethtool settings
do not persist across reboot or module reload. The ethtool commands can be put
in a startup script such as /etc/rc.local to preserve the settings across a
reboot. On Red Hat distributions, "ethtool -s" parameters can be specified
in the ifcfg-ethx scripts using the ETHTOOL_OPTS keyword. The specified
ethtool parameters will be set during ifup. Example:
/etc/sysconfig/network-scripts/ifcfg-eth0:
ETHTOOL_OPTS="wol g speed 100 duplex half autoneg off"
Some ethtool examples:
1. Show current speed, duplex, and link status:
ethtool eth0
2. Change speed, duplex, autoneg:
Example: 100Mbps half duplex, no autonegotiation:
ethtool -s eth0 speed 100 duplex half autoneg off
Example: Autonegotiation with full advertisement:
ethtool -s eth0 autoneg on
Example: Autonegotiation with 100Mbps full duplex advertisement only:
ethtool -s eth0 speed 100 duplex full autoneg on
3. Show flow control settings:
ethtool -a eth0
4. Change flow control settings:
Example: Turn off flow control
ethtool -A eth0 autoneg off rx off tx off
Example: Turn flow control autonegotiation on with tx and rx advertisement:
ethtool -A eth0 autoneg on rx on tx on
Note that this is only valid if speed is set to autonegotiation.
5. Show offload settings:
ethtool -k eth0
6. Change offload settings:
Example: Turn off TSO (TCP segmentation offload)
ethtool -K eth0 tso off
7. Get statistics:
ethtool -S eth0
8. Perform self-test:
ethtool -t eth0
Note that the interface (eth0) must be up to do all tests.
9. Show number of channels (rings):
ethtool -l eth0
Note that this is only supported on newer MSI-X capable devices (e.g.
57765, 57766, 5717, 5719, 5720) and available on 3.x kernels and 3.x
ethtool only.
10. Set number of channels (rings):
ethtool -L eth0 rx N tx N
rx and tx channel numbers can be different. 0 means use default. The
driver selects the best number of channels based on the number of CPU
cores.
Note that this is only supported on newer MSI-X capable devices (e.g.
57765, 57766, 5717, 5719, 5720) and available on 3.x kernels and 3.x
ethtool only.
11. See ethtool man page for more options.
Driver Defaults
===============
Speed : Autonegotiation with all speeds advertised
Flow control : Autonegotiation with rx and tx advertised
MTU : 1500 (range 46 - 9000)
Some chips do not support jumbo MTUs bigger than
1500
Rx Ring Size : 200 (range 0 - 511)
Some chips are fixed at 64
Rx Jumbo Ring Size : 100 (range 0 - 255)
Not all chips support the jumbo ring, and some
chips that support jumbo frames do not use the
jumbo ring.
Tx Ring Size : 511 (range (MAX_SKB_FRAGS+1) - 511)
MAX_SKB_FRAGS varies on different kernels and
different architectures. On a 2.6/3.x kernel for
x86, MAX_SKB_FRAGS is 18.
Number of RSS channels: Varies depending on the number of CPUs on MSI-X
capable devices. (Range 1 - 4)
Number of TSS channels: Varies depending on the number of CPUs on MSI-X
capable devices. (Range 1 - 4)
Coalesce rx usecs : 20 (range 0 - 1023)
Coalesce rx usecs irq : 20 (range 0 - 255)
Coalesce rx frames : 5 (range 0 - 1023)
Coalesce rx frames irq : 5 (range 0 - 255)
Coalesce tx usecs : 72 (range 0 - 1023)
Coalesce tx usecs irq : 20 (range 0 - 255)
Coalesce tx frames : 53 (range 0 - 1023)
Coalesce tx frames irq : 5 (range 0 - 255)
Coalesce stats usecs : 1000000 (aprox. 1 sec.)
Some coalescing parameters are not used or have
different defaults on some chips
MSI/MSI-X : Enabled (if supported by the chip and passed
the interrupt test)
TSO : Enabled on newer chips that support TCP segmentation
offload in hardware
WoL : Disabled
Unloading and Removing Driver
=============================
To unload the driver, use ifconfig to bring down all eth# interfaces opened
by the driver, then do the following:
rmmod tg3
Note that on 2.6/3.x kernels, it is not necessary to bring down the eth#
interfaces before unloading the driver module.
If the driver was installed using rpm, do the following to remove it:
rpm -e tg3
If the driver was installed using make install from the tar file, the driver
tg3.o (or tg3.ko) has to be manually deleted from the system. Refer
to the section "Installing Source RPM Package" for the location of the
installed driver.
Driver Messages
===============
The following are the most common sample messages that may be logged in the file
/var/log/messages. Use dmesg -n <level> to control the level at which messages
will appear on the console. Most systems are set to level 6 by default. To see
all messages, set the level higher.
Driver signon:
-------------
tg3.c:v3.122h (February 17, 2011)
NIC detected:
------------
eth0: Tigon3 [partno(BCM95704A6) rev 2003] (PCIX:100MHz:64-bit) MAC address 00:10:18:04:3f:36
eth0: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
eth0: dma_rwctrl[769f4000] dma_mask[64-bit]
Link up and speed indication:
----------------------------
tg3: eth0: Link is up at 1000 Mbps, full duplex.
tg3: eth0: Flow control is on for TX and on for RX.
Link down indication:
--------------------
tg3: eth0: Link is down.