From: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Date: Thu, 6 Oct 2011 16:33:35 +0000 (-0700)
Subject: IB/qib: Correct nfreectxts for multiple HCAs
X-Git-Tag: v3.2-rc1~104^2^11~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53ab1c6498371723c31b18400fab10a902a15a63;p=pandora-kernel.git

IB/qib: Correct nfreectxts for multiple HCAs

The code that was recently introduced to report the number
of free contexts is flawed for multiple HCAs:

       /* Return the number of free user ports (contexts) available. */
       return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
                dd->first_user_ctxt - (u32)qib_stats.sps_ctxts);

The qib_stats is global to the module, not per HCA, so the code is broken
for multiple HCAs.

This patch adds a qib_devdata field, freectxts, that reflects the free
contexts for this HCA.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Reviewed-by: Ram Vepa <ram.vepa@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---

Reading git-diff-tree failed