CINXE.COM

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>LKML: Roland Dreier: [PATCH 00/13] [RFC] IB: PathScale InfiniPath driver</title><link href="/css/message.css" rel="stylesheet" type="text/css" /><link href="/css/wrap.css" rel="alternate stylesheet" type="text/css" title="wrap" /><link href="/css/nowrap.css" rel="stylesheet" type="text/css" title="nowrap" /><link href="/favicon.ico" rel="shortcut icon" /><script src="/js/simple-calendar.js" type="text/javascript"></script><script src="/js/styleswitcher.js" type="text/javascript"></script><link rel="alternate" type="application/rss+xml" title="lkml.org : last 100 messages" href="/rss.php" /><link rel="alternate" type="application/rss+xml" title="lkml.org : last messages by Roland Dreier" href="/groupie.php?aid=3215" /><script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(["setDoNotTrack", true]); _paq.push(["disableCookies"]); _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="//m.lkml.org/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '1']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script></head><body onload="es.jasper.simpleCalendar.init();" itemscope="itemscope" itemtype="http://schema.org/BlogPosting"><table border="0" cellpadding="0" cellspacing="0"><tr><td width="180" align="center"><a href="/"><img style="border:0;width:135px;height:32px" src="/images/toprowlk.gif" alt="lkml.org" /></a></td><td width="32">聽</td><td class="nb"><div><a class="nb" href="/lkml"> [lkml]</a> 聽 <a class="nb" href="/lkml/2005"> [2005]</a> 聽 <a class="nb" href="/lkml/2005/12"> [Dec]</a> 聽 <a class="nb" href="/lkml/2005/12/16"> [16]</a> 聽 <a class="nb" href="/lkml/last100"> [last100]</a> 聽 <a href="/rss.php"><img src="/images/rss-or.gif" border="0" alt="RSS Feed" /></a></div><div>Views: <a href="#" class="nowrap" onclick="setActiveStyleSheet('wrap');return false;">[wrap]</a><a href="#" class="wrap" onclick="setActiveStyleSheet('nowrap');return false;">[no wrap]</a> 聽 <a class="nb" href="/lkml/mheaders/2005/12/16/290" onclick="this.href='/lkml/headers'+'/2005/12/16/290';">[headers]</a>聽 <a href="/lkml/bounce/2005/12/16/290">[forward]</a>聽 </div></td><td width="32">聽</td></tr><tr><td valign="top"><div class="es-jasper-simpleCalendar" baseurl="/lkml/"></div><div class="threadlist">Messages in this thread</div><ul class="threadlist"><li class="root"><a href="/lkml/2005/12/16/290">First message in thread</a></li><li class="origin"><a href="/lkml/2005/12/16/293">Roland Dreier</a><ul><li><a href="/lkml/2005/12/16/293">Roland Dreier</a><ul><li><a href="/lkml/2005/12/16/289">Roland Dreier</a><ul><li><a href="/lkml/2005/12/16/291">Roland Dreier</a><ul><li><a href="/lkml/2005/12/16/303">Roland Dreier</a></li><li><a href="/lkml/2005/12/17/25">Pekka Enberg</a></li><li><a href="/lkml/2005/12/17/31">Christoph Hellwig</a></li><li><a href="/lkml/2005/12/17/78">Andrew Morton</a></li></ul></li></ul></li><li><a href="/lkml/2005/12/17/23">Pekka Enberg</a><ul><li><a href="/lkml/2005/12/17/97">Robert Walsh</a></li></ul></li><li><a href="/lkml/2005/12/17/29">Christoph Hellwig</a><ul><li><a href="/lkml/2005/12/17/96">(Eric W. Biederman)</a><ul><li><a href="/lkml/2005/12/17/129">Andi Kleen</a></li></ul></li><li><a href="/lkml/2005/12/17/98">Robert Walsh</a><ul><li><a href="/lkml/2005/12/17/100">Arjan van de Ven</a></li></ul></li></ul></li><li><a href="/lkml/2005/12/17/77">Andrew Morton</a><ul><li><a href="/lkml/2005/12/17/102">Robert Walsh</a><ul><li><a href="/lkml/2005/12/17/126">Andrew Morton</a></li></ul></li><li><a href="/lkml/2005/12/19/207">Robert Walsh</a></li></ul></li></ul></li><li><a href="/lkml/2005/12/17/30">Christoph Hellwig</a><ul><li><a href="/lkml/2005/12/17/37">Roland Dreier</a></li></ul></li></ul></li></ul></td><td width="32" rowspan="2" class="c" valign="top"><img src="/images/icornerl.gif" width="32" height="32" alt="/" /></td><td class="c" rowspan="2" valign="top" style="padding-top: 1em"><table><tr><td><table><tr><td class="lp">Subject</td><td class="rp" itemprop="name">[PATCH 00/13] [RFC] IB: PathScale InfiniPath driver</td></tr><tr><td class="lp">Date</td><td class="rp" itemprop="datePublished">Fri, 16 Dec 2005 15:48:54 -0800</td></tr><tr><td class="lp">From</td><td class="rp" itemprop="author">Roland Dreier <></td></tr></table></td><td></td></tr></table><pre itemprop="articleBody">Here is an initial submission from PathScale of a driver for<br />InfiniPath InfiniBand HCAs. The driver is fairly big -- some single<br />files are more than the 100 KB limit for lkml posts -- so I've split<br />it up into a patch series so it can be reviewed inline. The split-up<br />doesn't make sense functionally but I want to make review as easy as<br />possible; any final import will merge the driver as a single git<br />patch.<br /><br />I've also put the current splitup patchset into my git tree at<br /><br /> git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git<br /><br />in the ipath branch.<br /><br />There are some things I noticed that could maybe be cleaned up, like<br />having sysctls that set values also settable through module parameters<br />under /sys/module, code inside #ifndef __KERNEL__ so include files can<br />be shared with other PathScale code, code in ipath_i2c.c that might be<br />simplified by using drivers/i2c, etc. I'd like to try to get a sense<br />of whether I'm being too picky or whether PathScale really does need<br />to fix these up before the driver is merged.<br /><br />Basically I'm trying to feel my way as a maintainer so I can find the<br />right balance between wanting kernel code to be absolutely perfect and<br />not wanting to put arbitrary hurdles in front of a vendor who has done<br />a lot of work on contributing an open driver for their hardware.<br /><br />I am especially interested in feedback about the mergability of this<br />driver from the broader kernel community, although of course feedback<br />from the InfiniBand/RDMA community on IB-specific aspects of the<br />driver is very much appreciated as well.<br /><br />Thanks,<br /> Roland<br />-<br />To unsubscribe from this list: send the line "unsubscribe linux-kernel" in<br />the body of a message to majordomo@vger.kernel.org<br />More majordomo info at <a href="http://vger.kernel.org/majordomo-info.html">http://vger.kernel.org/majordomo-info.html</a><br />Please read the FAQ at <a href="http://www.tux.org/lkml/">http://www.tux.org/lkml/</a><br /><br /></pre></td><td width="32" rowspan="2" class="c" valign="top"><img src="/images/icornerr.gif" width="32" height="32" alt="\" /></td></tr><tr><td align="right" valign="bottom"> 聽 </td></tr><tr><td align="right" valign="bottom">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerl.gif" width="32" height="32" alt="\" /></td><td class="c">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerr.gif" width="32" height="32" alt="/" /></td></tr><tr><td align="right" valign="top" colspan="2"> 聽 </td><td class="lm">Last update: 2005-12-17 00:52 聽聽 [from the cache]<br />漏2003-2020 <a href="http://blog.jasper.es/"><span itemprop="editor">Jasper Spaans</span></a>|hosted at <a href="https://www.digitalocean.com/?refcode=9a8e99d24cf9">Digital Ocean</a> and my Meterkast|<a href="http://blog.jasper.es/categories.html#lkml-ref">Read the blog</a></td><td>聽</td></tr></table><script language="javascript" src="/js/styleswitcher.js" type="text/javascript"></script></body></html>