<feed xmlns='http://www.w3.org/2005/Atom'>
<title>litmus-rt.git/drivers/net/cxgb3, branch wip-binary-heap</title>
<subtitle>The LITMUS^RT kernel.</subtitle>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/'/>
<entry>
<title>cxgb3: skb_record_rx_queue now records the queue index relative to the net_device.</title>
<updated>2011-06-25T00:55:22+00:00</updated>
<author>
<name>John (Jay) Hernandez</name>
<email>jay@chelsio.com</email>
</author>
<published>2011-06-23T14:39:12+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=d6fe5f4eccc2a7d2ad885ecb26a192b08dcc7cd1'/>
<id>d6fe5f4eccc2a7d2ad885ecb26a192b08dcc7cd1</id>
<content type='text'>
Fixed call to skb_record_rx_queue where we were passing the queue index
relative to the adapter when it should have been relative to the net_device.

Signed-off-by: John (Jay) Hernandez &lt;jay@chelsio.com&gt;
Signed-off-by: Divy Le Ray &lt;divy@chelsio.com&gt;
Reported-by: Shawn Bohrer &lt;sbohrer@rgmadvisors.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fixed call to skb_record_rx_queue where we were passing the queue index
relative to the adapter when it should have been relative to the net_device.

Signed-off-by: John (Jay) Hernandez &lt;jay@chelsio.com&gt;
Signed-off-by: Divy Le Ray &lt;divy@chelsio.com&gt;
Reported-by: Shawn Bohrer &lt;sbohrer@rgmadvisors.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Add appropriate &lt;linux/prefetch.h&gt; include for prefetch users</title>
<updated>2011-05-23T04:41:57+00:00</updated>
<author>
<name>Paul Gortmaker</name>
<email>paul.gortmaker@windriver.com</email>
</author>
<published>2011-05-22T20:47:17+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=70c71606190e9115e5f8363bfcd164c582eb314a'/>
<id>70c71606190e9115e5f8363bfcd164c582eb314a</id>
<content type='text'>
After discovering that wide use of prefetch on modern CPUs
could be a net loss instead of a win, net drivers which were
relying on the implicit inclusion of prefetch.h via the list
headers showed up in the resulting cleanup fallout.  Give
them an explicit include via the following $0.02 script.

 =========================================
 #!/bin/bash
 MANUAL=""
 for i in `git grep -l 'prefetch(.*)' .` ; do
 	grep -q '&lt;linux/prefetch.h&gt;' $i
 	if [ $? = 0 ] ; then
 		continue
 	fi

 	(	echo '?^#include &lt;linux/?a'
 		echo '#include &lt;linux/prefetch.h&gt;'
 		echo .
 		echo w
 		echo q
 	) | ed -s $i &gt; /dev/null 2&gt;&amp;1
 	if [ $? != 0 ]; then
 		echo $i needs manual fixup
 		MANUAL="$i $MANUAL"
 	fi
 done
 echo ------------------- 8\&lt;----------------------
 echo vi $MANUAL
 =========================================

Signed-off-by: Paul &lt;paul.gortmaker@windriver.com&gt;
[ Fixed up some incorrect #include placements, and added some
  non-network drivers and the fib_trie.c case    - Linus ]
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
After discovering that wide use of prefetch on modern CPUs
could be a net loss instead of a win, net drivers which were
relying on the implicit inclusion of prefetch.h via the list
headers showed up in the resulting cleanup fallout.  Give
them an explicit include via the following $0.02 script.

 =========================================
 #!/bin/bash
 MANUAL=""
 for i in `git grep -l 'prefetch(.*)' .` ; do
 	grep -q '&lt;linux/prefetch.h&gt;' $i
 	if [ $? = 0 ] ; then
 		continue
 	fi

 	(	echo '?^#include &lt;linux/?a'
 		echo '#include &lt;linux/prefetch.h&gt;'
 		echo .
 		echo w
 		echo q
 	) | ed -s $i &gt; /dev/null 2&gt;&amp;1
 	if [ $? != 0 ]; then
 		echo $i needs manual fixup
 		MANUAL="$i $MANUAL"
 	fi
 done
 echo ------------------- 8\&lt;----------------------
 echo vi $MANUAL
 =========================================

Signed-off-by: Paul &lt;paul.gortmaker@windriver.com&gt;
[ Fixed up some incorrect #include placements, and added some
  non-network drivers and the fib_trie.c case    - Linus ]
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ethtool: cosmetic: Use ethtool ethtool_cmd_speed API</title>
<updated>2011-04-29T21:03:01+00:00</updated>
<author>
<name>David Decotigny</name>
<email>decot@google.com</email>
</author>
<published>2011-04-27T18:32:40+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=707394972093e2056e1e8cc39be19cf9bcb3e7b3'/>
<id>707394972093e2056e1e8cc39be19cf9bcb3e7b3</id>
<content type='text'>
This updates the network drivers so that they don't access the
ethtool_cmd::speed field directly, but use ethtool_cmd_speed()
instead.

For most of the drivers, these changes are purely cosmetic and don't
fix any problem, such as for those 1GbE/10GbE drivers that indirectly
call their own ethtool get_settings()/mii_ethtool_gset(). The changes
are meant to enforce code consistency and provide robustness with
future larger throughputs, at the expense of a few CPU cycles for each
ethtool operation.

All drivers compiled with make allyesconfig ion x86_64 have been
updated.

Tested: make allyesconfig on x86_64 + e1000e/bnx2x work
Signed-off-by: David Decotigny &lt;decot@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This updates the network drivers so that they don't access the
ethtool_cmd::speed field directly, but use ethtool_cmd_speed()
instead.

For most of the drivers, these changes are purely cosmetic and don't
fix any problem, such as for those 1GbE/10GbE drivers that indirectly
call their own ethtool get_settings()/mii_ethtool_gset(). The changes
are meant to enforce code consistency and provide robustness with
future larger throughputs, at the expense of a few CPU cycles for each
ethtool operation.

All drivers compiled with make allyesconfig ion x86_64 have been
updated.

Tested: make allyesconfig on x86_64 + e1000e/bnx2x work
Signed-off-by: David Decotigny &lt;decot@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ethtool: Use full 32 bit speed range in ethtool's set_settings</title>
<updated>2011-04-29T21:03:00+00:00</updated>
<author>
<name>David Decotigny</name>
<email>decot@google.com</email>
</author>
<published>2011-04-27T18:32:39+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=25db0338813a8915457636b1f6abe6a28fa73f8d'/>
<id>25db0338813a8915457636b1f6abe6a28fa73f8d</id>
<content type='text'>
This makes sure the ethtool's set_settings() callback of network
drivers don't ignore the 16 most significant bits when ethtool calls
their set_settings().

All drivers compiled with make allyesconfig on x86_64 have been
updated.

Signed-off-by: David Decotigny &lt;decot@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This makes sure the ethtool's set_settings() callback of network
drivers don't ignore the 16 most significant bits when ethtool calls
their set_settings().

All drivers compiled with make allyesconfig on x86_64 have been
updated.

Signed-off-by: David Decotigny &lt;decot@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: cxgb3: convert to hw_features</title>
<updated>2011-04-18T00:40:25+00:00</updated>
<author>
<name>Michał Mirosław</name>
<email>mirq-linux@rere.qmqm.pl</email>
</author>
<published>2011-04-17T00:15:46+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=d2fe2755342b30bc1ee7797b9975f8626d65e485'/>
<id>d2fe2755342b30bc1ee7797b9975f8626d65e485</id>
<content type='text'>
This removes some of the remnants of LRO -&gt; GRO conversion.

Signed-off-by: Michał Mirosław &lt;mirq-linux@rere.qmqm.pl&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This removes some of the remnants of LRO -&gt; GRO conversion.

Signed-off-by: Michał Mirosław &lt;mirq-linux@rere.qmqm.pl&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ethtool: allow custom interval for physical identification</title>
<updated>2011-04-15T04:15:49+00:00</updated>
<author>
<name>Allan, Bruce W</name>
<email>bruce.w.allan@intel.com</email>
</author>
<published>2011-04-13T13:09:10+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=fce55922f5299a04c0a56b170a141fab34f13465'/>
<id>fce55922f5299a04c0a56b170a141fab34f13465</id>
<content type='text'>
When physical identification of an adapter is done by toggling the
mechanism on and off through software utilizing the set_phys_id operation,
it is done with a fixed duration for both on and off states.  Some drivers
may want to set a custom duration for the on/off intervals.  This patch
changes the API so the return code from the driver's entry point when it
is called with ETHTOOL_ID_ACTIVE can specify the frequency at which to
cycle the on/off states, and updates the drivers that have already been
converted to use the new set_phys_id and use the synchronous method for
identifying an adapter.

The physical identification frequency set in the updated drivers is based
on how it was done prior to the introduction of set_phys_id.

Compile tested only.  Also fixes a compiler warning in sfc.

v2: drivers do not return -EINVAL for ETHOOL_ID_ACTIVE
v3: fold patchset into single patch and cleanup per Ben's feedback

Signed-off-by: Bruce Allan &lt;bruce.w.allan@intel.com&gt;
Cc: Ben Hutchings &lt;bhutchings@solarflare.com&gt;
Cc: Sathya Perla &lt;sathya.perla@emulex.com&gt;
Cc: Subbu Seetharaman &lt;subbu.seetharaman@emulex.com&gt;
Cc: Ajit Khaparde &lt;ajit.khaparde@emulex.com&gt;
Cc: Michael Chan &lt;mchan@broadcom.com&gt;
Cc: Eilon Greenstein &lt;eilong@broadcom.com&gt;
Cc: Divy Le Ray &lt;divy@chelsio.com&gt;
Cc: Don Fry &lt;pcnet32@frontier.com&gt;
Cc: Jon Mason &lt;jdmason@kudzu.us&gt;
Cc: Solarflare linux maintainers &lt;linux-net-drivers@solarflare.com&gt;
Cc: Steve Hodgson &lt;shodgson@solarflare.com&gt;
Cc: Stephen Hemminger &lt;shemminger@linux-foundation.org&gt;
Cc: Matt Carlson &lt;mcarlson@broadcom.com&gt;
Acked-by: Jon Mason &lt;jdmason@kudzu.us&gt;
Acked-by: Ben Hutchings &lt;bhutchings@solarflare.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When physical identification of an adapter is done by toggling the
mechanism on and off through software utilizing the set_phys_id operation,
it is done with a fixed duration for both on and off states.  Some drivers
may want to set a custom duration for the on/off intervals.  This patch
changes the API so the return code from the driver's entry point when it
is called with ETHTOOL_ID_ACTIVE can specify the frequency at which to
cycle the on/off states, and updates the drivers that have already been
converted to use the new set_phys_id and use the synchronous method for
identifying an adapter.

The physical identification frequency set in the updated drivers is based
on how it was done prior to the introduction of set_phys_id.

Compile tested only.  Also fixes a compiler warning in sfc.

v2: drivers do not return -EINVAL for ETHOOL_ID_ACTIVE
v3: fold patchset into single patch and cleanup per Ben's feedback

Signed-off-by: Bruce Allan &lt;bruce.w.allan@intel.com&gt;
Cc: Ben Hutchings &lt;bhutchings@solarflare.com&gt;
Cc: Sathya Perla &lt;sathya.perla@emulex.com&gt;
Cc: Subbu Seetharaman &lt;subbu.seetharaman@emulex.com&gt;
Cc: Ajit Khaparde &lt;ajit.khaparde@emulex.com&gt;
Cc: Michael Chan &lt;mchan@broadcom.com&gt;
Cc: Eilon Greenstein &lt;eilong@broadcom.com&gt;
Cc: Divy Le Ray &lt;divy@chelsio.com&gt;
Cc: Don Fry &lt;pcnet32@frontier.com&gt;
Cc: Jon Mason &lt;jdmason@kudzu.us&gt;
Cc: Solarflare linux maintainers &lt;linux-net-drivers@solarflare.com&gt;
Cc: Steve Hodgson &lt;shodgson@solarflare.com&gt;
Cc: Stephen Hemminger &lt;shemminger@linux-foundation.org&gt;
Cc: Matt Carlson &lt;mcarlson@broadcom.com&gt;
Acked-by: Jon Mason &lt;jdmason@kudzu.us&gt;
Acked-by: Ben Hutchings &lt;bhutchings@solarflare.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6</title>
<updated>2011-04-11T20:44:25+00:00</updated>
<author>
<name>David S. Miller</name>
<email>davem@davemloft.net</email>
</author>
<published>2011-04-11T20:44:25+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=1c01a80cfec6f806246f31ff2680cd3639b30e67'/>
<id>1c01a80cfec6f806246f31ff2680cd3639b30e67</id>
<content type='text'>
Conflicts:
	drivers/net/smsc911x.c
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Conflicts:
	drivers/net/smsc911x.c
</pre>
</div>
</content>
</entry>
<entry>
<title>cxgb3: implement set_phys_id</title>
<updated>2011-04-06T21:30:08+00:00</updated>
<author>
<name>stephen hemminger</name>
<email>shemminger@vyatta.com</email>
</author>
<published>2011-04-04T08:43:51+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=12fcf941674fd781117a56f998d2bb28b4bc4cf1'/>
<id>12fcf941674fd781117a56f998d2bb28b4bc4cf1</id>
<content type='text'>
Implement new ethtool set_phys_id on Chelsio cxgb3 board.

Signed-off-by: Stephen Hemminger &lt;shemminger@vyatta.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Implement new ethtool set_phys_id on Chelsio cxgb3 board.

Signed-off-by: Stephen Hemminger &lt;shemminger@vyatta.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Fix common misspellings</title>
<updated>2011-03-31T14:26:23+00:00</updated>
<author>
<name>Lucas De Marchi</name>
<email>lucas.demarchi@profusion.mobi</email>
</author>
<published>2011-03-31T01:57:33+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=25985edcedea6396277003854657b5f3cb31a628'/>
<id>25985edcedea6396277003854657b5f3cb31a628</id>
<content type='text'>
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi &lt;lucas.demarchi@profusion.mobi&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi &lt;lucas.demarchi@profusion.mobi&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cxgb3: Apply interrupt coalescing settings to all queues</title>
<updated>2011-03-29T05:26:33+00:00</updated>
<author>
<name>Anton Blanchard</name>
<email>anton@samba.org</email>
</author>
<published>2011-03-27T16:50:41+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=c211c9698920d2b114bd8fbf913c8bdab3918461'/>
<id>c211c9698920d2b114bd8fbf913c8bdab3918461</id>
<content type='text'>
While testing the performance of different receive interrupt
coalescing settings on a single stream TCP benchmark, I noticed two
very different results. With rx-usecs=50, most of the time a
connection would hit 8280 Mbps but once in a while it would hit
9330 Mbps.

It turns out we are only applying the interrupt coalescing settings
to the first queue and whenever the rx hash would direct us onto
that queue we ran faster.

With this patch applied and rx-usecs=50, I get 9330 Mbps
consistently.

Signed-off-by: Anton Blanchard &lt;anton@samba.org&gt;
Acked-by: Divy Le Ray &lt;divy@chelsio.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
While testing the performance of different receive interrupt
coalescing settings on a single stream TCP benchmark, I noticed two
very different results. With rx-usecs=50, most of the time a
connection would hit 8280 Mbps but once in a while it would hit
9330 Mbps.

It turns out we are only applying the interrupt coalescing settings
to the first queue and whenever the rx hash would direct us onto
that queue we ran faster.

With this patch applied and rx-usecs=50, I get 9330 Mbps
consistently.

Signed-off-by: Anton Blanchard &lt;anton@samba.org&gt;
Acked-by: Divy Le Ray &lt;divy@chelsio.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
</feed>
