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authorJaroslav Kysela <perex@tm8103>2005-11-07 11:02:51 +0100
committerJaroslav Kysela <perex@tm8103>2005-11-07 11:02:51 +0100
commit1d4ae4a119e5ba711f12b05cdf27f794460add4b (patch)
tree13a196ce55115d8f64acf0db86314f5abc847b40 /Documentation
parentc2f2f0fa3829a8da1e029346c4f7e8da82f95d62 (diff)
parent0b154bb7d0cce80e9c0bcf11d4f9e71b59409d26 (diff)
downloadop-kernel-dev-1d4ae4a119e5ba711f12b05cdf27f794460add4b.zip
op-kernel-dev-1d4ae4a119e5ba711f12b05cdf27f794460add4b.tar.gz
Merge with rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/DocBook/kernel-api.tmpl6
-rw-r--r--Documentation/arm/README7
-rw-r--r--Documentation/networking/s2io.txt199
-rw-r--r--Documentation/scsi/LICENSE.qla2xxx45
4 files changed, 203 insertions, 54 deletions
diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl
index 4d9b66d..ec474e5 100644
--- a/Documentation/DocBook/kernel-api.tmpl
+++ b/Documentation/DocBook/kernel-api.tmpl
@@ -239,9 +239,9 @@ X!Ilib/string.c
<title>Network device support</title>
<sect1><title>Driver Support</title>
!Enet/core/dev.c
- </sect1>
- <sect1><title>8390 Based Network Cards</title>
-!Edrivers/net/8390.c
+!Enet/ethernet/eth.c
+!Einclude/linux/etherdevice.h
+!Enet/core/wireless.c
</sect1>
<sect1><title>Synchronous PPP</title>
!Edrivers/net/wan/syncppp.c
diff --git a/Documentation/arm/README b/Documentation/arm/README
index a6f718e..5ed6f35 100644
--- a/Documentation/arm/README
+++ b/Documentation/arm/README
@@ -8,10 +8,9 @@ Compilation of kernel
---------------------
In order to compile ARM Linux, you will need a compiler capable of
- generating ARM ELF code with GNU extensions. GCC 2.95.1, EGCS
- 1.1.2, and GCC 3.3 are known to be good compilers. Fortunately, you
- needn't guess. The kernel will report an error if your compiler is
- a recognized offender.
+ generating ARM ELF code with GNU extensions. GCC 3.3 is known to be
+ a good compiler. Fortunately, you needn't guess. The kernel will report
+ an error if your compiler is a recognized offender.
To build ARM Linux natively, you shouldn't have to alter the ARCH = line
in the top level Makefile. However, if you don't have the ARM Linux ELF
diff --git a/Documentation/networking/s2io.txt b/Documentation/networking/s2io.txt
index 6726b52..bd528ff 100644
--- a/Documentation/networking/s2io.txt
+++ b/Documentation/networking/s2io.txt
@@ -1,48 +1,153 @@
-S2IO Technologies XFrame 10 Gig adapter.
--------------------------------------------
-
-I. Module loadable parameters.
-When loaded as a module, the driver provides a host of Module loadable
-parameters, so the device can be tuned as per the users needs.
-A list of the Module params is given below.
-(i) ring_num: This can be used to program the number of
- receive rings used in the driver.
-(ii) ring_len: This defines the number of descriptors each ring
- can have. There can be a maximum of 8 rings.
-(iii) frame_len: This is an array of size 8. Using this we can
- set the maximum size of the received frame that can
- be steered into the corrsponding receive ring.
-(iv) fifo_num: This defines the number of Tx FIFOs thats used in
- the driver.
-(v) fifo_len: Each element defines the number of
- Tx descriptors that can be associated with each
- corresponding FIFO. There are a maximum of 8 FIFOs.
-(vi) tx_prio: This is a bool, if module is loaded with a non-zero
- value for tx_prio multi FIFO scheme is activated.
-(vii) rx_prio: This is a bool, if module is loaded with a non-zero
- value for tx_prio multi RING scheme is activated.
-(viii) latency_timer: The value given against this param will be
- loaded into the latency timer register in PCI Config
- space, else the register is left with its reset value.
-
-II. Performance tuning.
- By changing a few sysctl parameters.
- Copy the following lines into a file and run the following command,
- "sysctl -p <file_name>"
-### IPV4 specific settings
-net.ipv4.tcp_timestamps = 0 # turns TCP timestamp support off, default 1, reduces CPU use
-net.ipv4.tcp_sack = 0 # turn SACK support off, default on
-# on systems with a VERY fast bus -> memory interface this is the big gainer
-net.ipv4.tcp_rmem = 10000000 10000000 10000000 # sets min/default/max TCP read buffer, default 4096 87380 174760
-net.ipv4.tcp_wmem = 10000000 10000000 10000000 # sets min/pressure/max TCP write buffer, default 4096 16384 131072
-net.ipv4.tcp_mem = 10000000 10000000 10000000 # sets min/pressure/max TCP buffer space, default 31744 32256 32768
-
-### CORE settings (mostly for socket and UDP effect)
-net.core.rmem_max = 524287 # maximum receive socket buffer size, default 131071
-net.core.wmem_max = 524287 # maximum send socket buffer size, default 131071
-net.core.rmem_default = 524287 # default receive socket buffer size, default 65535
-net.core.wmem_default = 524287 # default send socket buffer size, default 65535
-net.core.optmem_max = 524287 # maximum amount of option memory buffers, default 10240
-net.core.netdev_max_backlog = 300000 # number of unprocessed input packets before kernel starts dropping them, default 300
----End of performance tuning file---
+Release notes for Neterion's (Formerly S2io) Xframe I/II PCI-X 10GbE driver.
+
+Contents
+=======
+- 1. Introduction
+- 2. Identifying the adapter/interface
+- 3. Features supported
+- 4. Command line parameters
+- 5. Performance suggestions
+- 6. Available Downloads
+
+
+1. Introduction:
+This Linux driver supports Neterion's Xframe I PCI-X 1.0 and
+Xframe II PCI-X 2.0 adapters. It supports several features
+such as jumbo frames, MSI/MSI-X, checksum offloads, TSO, UFO and so on.
+See below for complete list of features.
+All features are supported for both IPv4 and IPv6.
+
+2. Identifying the adapter/interface:
+a. Insert the adapter(s) in your system.
+b. Build and load driver
+# insmod s2io.ko
+c. View log messages
+# dmesg | tail -40
+You will see messages similar to:
+eth3: Neterion Xframe I 10GbE adapter (rev 3), Version 2.0.9.1, Intr type INTA
+eth4: Neterion Xframe II 10GbE adapter (rev 2), Version 2.0.9.1, Intr type INTA
+eth4: Device is on 64 bit 133MHz PCIX(M1) bus
+
+The above messages identify the adapter type(Xframe I/II), adapter revision,
+driver version, interface name(eth3, eth4), Interrupt type(INTA, MSI, MSI-X).
+In case of Xframe II, the PCI/PCI-X bus width and frequency are displayed
+as well.
+
+To associate an interface with a physical adapter use "ethtool -p <ethX>".
+The corresponding adapter's LED will blink multiple times.
+
+3. Features supported:
+a. Jumbo frames. Xframe I/II supports MTU upto 9600 bytes,
+modifiable using ifconfig command.
+
+b. Offloads. Supports checksum offload(TCP/UDP/IP) on transmit
+and receive, TSO.
+
+c. Multi-buffer receive mode. Scattering of packet across multiple
+buffers. Currently driver supports 2-buffer mode which yields
+significant performance improvement on certain platforms(SGI Altix,
+IBM xSeries).
+
+d. MSI/MSI-X. Can be enabled on platforms which support this feature
+(IA64, Xeon) resulting in noticeable performance improvement(upto 7%
+on certain platforms).
+
+e. NAPI. Compile-time option(CONFIG_S2IO_NAPI) for better Rx interrupt
+moderation.
+
+f. Statistics. Comprehensive MAC-level and software statistics displayed
+using "ethtool -S" option.
+
+g. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings,
+with multiple steering options.
+
+4. Command line parameters
+a. tx_fifo_num
+Number of transmit queues
+Valid range: 1-8
+Default: 1
+
+b. rx_ring_num
+Number of receive rings
+Valid range: 1-8
+Default: 1
+
+c. tx_fifo_len
+Size of each transmit queue
+Valid range: Total length of all queues should not exceed 8192
+Default: 4096
+
+d. rx_ring_sz
+Size of each receive ring(in 4K blocks)
+Valid range: Limited by memory on system
+Default: 30
+
+e. intr_type
+Specifies interrupt type. Possible values 1(INTA), 2(MSI), 3(MSI-X)
+Valid range: 1-3
+Default: 1
+
+5. Performance suggestions
+General:
+a. Set MTU to maximum(9000 for switch setup, 9600 in back-to-back configuration)
+b. Set TCP windows size to optimal value.
+For instance, for MTU=1500 a value of 210K has been observed to result in
+good performance.
+# sysctl -w net.ipv4.tcp_rmem="210000 210000 210000"
+# sysctl -w net.ipv4.tcp_wmem="210000 210000 210000"
+For MTU=9000, TCP window size of 10 MB is recommended.
+# sysctl -w net.ipv4.tcp_rmem="10000000 10000000 10000000"
+# sysctl -w net.ipv4.tcp_wmem="10000000 10000000 10000000"
+
+Transmit performance:
+a. By default, the driver respects BIOS settings for PCI bus parameters.
+However, you may want to experiment with PCI bus parameters
+max-split-transactions(MOST) and MMRBC (use setpci command).
+A MOST value of 2 has been found optimal for Opterons and 3 for Itanium.
+It could be different for your hardware.
+Set MMRBC to 4K**.
+
+For example you can set
+For opteron
+#setpci -d 17d5:* 62=1d
+For Itanium
+#setpci -d 17d5:* 62=3d
+
+For detailed description of the PCI registers, please see Xframe User Guide.
+
+b. Ensure Transmit Checksum offload is enabled. Use ethtool to set/verify this
+parameter.
+c. Turn on TSO(using "ethtool -K")
+# ethtool -K <ethX> tso on
+
+Receive performance:
+a. By default, the driver respects BIOS settings for PCI bus parameters.
+However, you may want to set PCI latency timer to 248.
+#setpci -d 17d5:* LATENCY_TIMER=f8
+For detailed description of the PCI registers, please see Xframe User Guide.
+b. Use 2-buffer mode. This results in large performance boost on
+on certain platforms(eg. SGI Altix, IBM xSeries).
+c. Ensure Receive Checksum offload is enabled. Use "ethtool -K ethX" command to
+set/verify this option.
+d. Enable NAPI feature(in kernel configuration Device Drivers ---> Network
+device support ---> Ethernet (10000 Mbit) ---> S2IO 10Gbe Xframe NIC) to
+bring down CPU utilization.
+
+** For AMD opteron platforms with 8131 chipset, MMRBC=1 and MOST=1 are
+recommended as safe parameters.
+For more information, please review the AMD8131 errata at
+http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26310.pdf
+
+6. Available Downloads
+Neterion "s2io" driver in Red Hat and Suse 2.6-based distributions is kept up
+to date, also the latest "s2io" code (including support for 2.4 kernels) is
+available via "Support" link on the Neterion site: http://www.neterion.com.
+
+For Xframe User Guide (Programming manual), visit ftp site ns1.s2io.com,
+user: linuxdocs password: HALdocs
+
+7. Support
+For further support please contact either your 10GbE Xframe NIC vendor (IBM,
+HP, SGI etc.) or click on the "Support" link on the Neterion site:
+http://www.neterion.com.
diff --git a/Documentation/scsi/LICENSE.qla2xxx b/Documentation/scsi/LICENSE.qla2xxx
new file mode 100644
index 0000000..9e15b4f
--- /dev/null
+++ b/Documentation/scsi/LICENSE.qla2xxx
@@ -0,0 +1,45 @@
+Copyright (c) 2003-2005 QLogic Corporation
+QLogic Linux Fibre Channel HBA Driver
+
+This program includes a device driver for Linux 2.6 that may be
+distributed with QLogic hardware specific firmware binary file.
+You may modify and redistribute the device driver code under the
+GNU General Public License as published by the Free Software
+Foundation (version 2 or a later version).
+
+You may redistribute the hardware specific firmware binary file
+under the following terms:
+
+ 1. Redistribution of source code (only if applicable),
+ must retain the above copyright notice, this list of
+ conditions and the following disclaimer.
+
+ 2. Redistribution in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ 3. The name of QLogic Corporation may not be used to
+ endorse or promote products derived from this software
+ without specific prior written permission
+
+REGARDLESS OF WHAT LICENSING MECHANISM IS USED OR APPLICABLE,
+THIS PROGRAM IS PROVIDED BY QLOGIC CORPORATION "AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+USER ACKNOWLEDGES AND AGREES THAT USE OF THIS PROGRAM WILL NOT
+CREATE OR GIVE GROUNDS FOR A LICENSE BY IMPLICATION, ESTOPPEL, OR
+OTHERWISE IN ANY INTELLECTUAL PROPERTY RIGHTS (PATENT, COPYRIGHT,
+TRADE SECRET, MASK WORK, OR OTHER PROPRIETARY RIGHT) EMBODIED IN
+ANY OTHER QLOGIC HARDWARE OR SOFTWARE EITHER SOLELY OR IN
+COMBINATION WITH THIS PROGRAM.
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