linux-kernel - [PATCH 4 of 23] IB/ipath - fix handling of kpiobufs

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Message-Id: <599649f41f050c5a267c.1156530269@eng-12.pathscale.com>
Date:	Fri, 25 Aug 2006 11:24:29 -0700
From:	Bryan O'Sullivan <bos@...hscale.com>
To:	rdreier@...co.com
Cc:	openib-general@...nib.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4 of 23] IB/ipath - fix handling of kpiobufs

Change comment: no longer imply that user can set ipath_kpiobufs to zero.
Actually set ipath_kpiobufs from parameter. Previously only altered
per-device ipath_lastport_piobuf, which was over-written in chip init.

Signed-off-by: Bryan O'Sullivan <bryan.osullivan@...gic.com>

diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c	Fri Aug 25 11:19:44 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c	Fri Aug 25 11:19:44 2006 -0700
@@ -691,7 +691,7 @@ int ipath_init_chip(struct ipath_devdata
 	dd->ipath_pioavregs = ALIGN(val, sizeof(u64) * BITS_PER_BYTE / 2)
 		/ (sizeof(u64) * BITS_PER_BYTE / 2);
 	if (ipath_kpiobufs == 0) {
-		/* not set by user, or set explictly to default  */
+		/* not set by user (this is default) */
 		if ((dd->ipath_piobcnt2k + dd->ipath_piobcnt4k) > 128)
 			kpiobufs = 32;
 		else
@@ -950,6 +950,7 @@ static int ipath_set_kpiobufs(const char
 			dd->ipath_piobcnt2k + dd->ipath_piobcnt4k - val;
 	}
 
+	ipath_kpiobufs = val;
 	ret = 0;
 bail:
 	spin_unlock_irqrestore(&ipath_devs_lock, flags);
-
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