LKML: Roland Dreier: [PATCH][25/27] IB/mthca: map context for RDMA responder in mem-free mode

<?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][25/27] IB/mthca: map context for RDMA responder in mem-free mode</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/2005/4"> [Apr]</a> 聽 <a class="nb" href="/lkml/2005/4/1"> [1]</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/2005/4/1/234" onclick="this.href='/lkml/headers'+'/2005/4/1/234';">[headers]</a>聽 <a href="/lkml/bounce/2005/4/1/234">[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/2005/4/1/224">First message in thread</a></li><li><a href="/lkml/2005/4/1/232">Roland Dreier</a><ul><li><a href="/lkml/2005/4/1/241">Roland Dreier</a><ul><li class="origin"><a href="/lkml/2005/4/1/242">Roland Dreier</a><ul><li><a href="/lkml/2005/4/1/242">Roland Dreier</a><ul><li><a href="/lkml/2005/4/1/235">Roland Dreier</a></li></ul></li></ul></li></ul></li></ul></li></ul><div class="threadlist">Patch in this message</div><ul class="threadlist"><li><a href="/lkml/diff/2005/4/1/234/1">Get diff 1</a></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][25/27] IB/mthca: map context for RDMA responder in mem-free mode</td></tr><tr><td class="lp">Date</td><td class="rp" itemprop="datePublished">Fri, 1 Apr 2005 12:49:54 -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">Fix RDMA in mem-free mode: we need to make sure that the RDMA context<br />memory is mapped for the HCA.<br /><br />Signed-off-by: Roland Dreier <roland@topspin.com><br /><br /><br />--- linux-export.orig/drivers/infiniband/hw/mthca/mthca_dev.h 2005-04-01 12:38:30.772280864 -0800<br />+++ linux-export/drivers/infiniband/hw/mthca/mthca_dev.h 2005-04-01 12:38:31.661087929 -0800<br />@@ -222,6 +222,7 @@<br /> struct mthca_array qp;<br /> struct mthca_icm_table *qp_table;<br /> struct mthca_icm_table *eqp_table;<br />+ struct mthca_icm_table *rdb_table;<br /> };<br /> <br /> struct mthca_av_table {<br />--- linux-export.orig/drivers/infiniband/hw/mthca/mthca_main.c 2005-04-01 12:38:30.776279996 -0800<br />+++ linux-export/drivers/infiniband/hw/mthca/mthca_main.c 2005-04-01 12:38:31.666086844 -0800<br />@@ -430,14 +430,25 @@<br /> goto err_unmap_qp;<br /> }<br /> <br />- mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,<br />+ mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,<br />+ MTHCA_RDB_ENTRY_SIZE,<br />+ mdev->limits.num_qps <<<br />+ mdev->qp_table.rdb_shift,<br />+ 0, 0);<br />+ if (!mdev->qp_table.rdb_table) {<br />+ mthca_err(mdev, "Failed to map RDB context memory, aborting\n");<br />+ err = -ENOMEM;<br />+ goto err_unmap_eqp;<br />+ }<br />+<br />+ mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,<br /> dev_lim->cqc_entry_sz,<br /> mdev->limits.num_cqs,<br /> mdev->limits.reserved_cqs, 0);<br /> if (!mdev->cq_table.table) {<br /> mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");<br /> err = -ENOMEM;<br />- goto err_unmap_eqp;<br />+ goto err_unmap_rdb;<br /> }<br /> <br /> /*<br />@@ -463,6 +474,9 @@<br /> err_unmap_cq:<br /> mthca_free_icm_table(mdev, mdev->cq_table.table);<br /> <br />+err_unmap_rdb:<br />+ mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);<br />+<br /> err_unmap_eqp:<br /> mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);<br /> <br />--- linux-export.orig/drivers/infiniband/hw/mthca/mthca_qp.c 2005-04-01 12:38:30.827268928 -0800<br />+++ linux-export/drivers/infiniband/hw/mthca/mthca_qp.c 2005-04-01 12:38:31.673085325 -0800<br />@@ -1025,11 +1025,16 @@<br /> if (ret)<br /> goto err_qpc;<br /> <br />+ ret = mthca_table_get(dev, dev->qp_table.rdb_table,<br />+ qp->qpn << dev->qp_table.rdb_shift);<br />+ if (ret)<br />+ goto err_eqpc;<br />+<br /> qp->rq.db_index = mthca_alloc_db(dev, MTHCA_DB_TYPE_RQ,<br /> qp->qpn, &qp->rq.db);<br /> if (qp->rq.db_index < 0) {<br /> ret = -ENOMEM;<br />- goto err_eqpc;<br />+ goto err_rdb;<br /> }<br /> <br /> qp->sq.db_index = mthca_alloc_db(dev, MTHCA_DB_TYPE_SQ,<br />@@ -1045,6 +1050,10 @@<br /> err_rq_db:<br /> mthca_free_db(dev, MTHCA_DB_TYPE_RQ, qp->rq.db_index);<br /> <br />+err_rdb:<br />+ mthca_table_put(dev, dev->qp_table.rdb_table,<br />+ qp->qpn << dev->qp_table.rdb_shift);<br />+<br /> err_eqpc:<br /> mthca_table_put(dev, dev->qp_table.eqp_table, qp->qpn);<br /> <br />@@ -1060,6 +1069,8 @@<br /> if (mthca_is_memfree(dev)) {<br /> mthca_free_db(dev, MTHCA_DB_TYPE_SQ, qp->sq.db_index);<br /> mthca_free_db(dev, MTHCA_DB_TYPE_RQ, qp->rq.db_index);<br />+ mthca_table_put(dev, dev->qp_table.rdb_table,<br />+ qp->qpn << dev->qp_table.rdb_shift);<br /> mthca_table_put(dev, dev->qp_table.eqp_table, qp->qpn);<br /> mthca_table_put(dev, dev->qp_table.qp_table, qp->qpn);<br /> }<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: 2005-04-06 13:31 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>

CINXE.COM

LKML: Roland Dreier: [PATCH][25/27] IB/mthca: map context for RDMA responder in mem-free mode