From: Martin Schwidefsky <schwidefsky@de.ibm.com>
To: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: [patch 10/34] cio: Disable channel measurements (cmf) on shutdown/reboot.
Date: Thu, 04 Oct 2007 13:27:16 +0200 [thread overview]
Message-ID: <20071004112827.288713172@de.ibm.com> (raw)
In-Reply-To: 20071004112706.574737175@de.ibm.com
[-- Attachment #1: 010-cio-cmf-disable.diff --]
[-- Type: text/plain, Size: 1680 bytes --]
From: Cornelia Huck <cornelia.huck@de.ibm.com>
Disable channel measurements for all ccw devices via the ccw bus's
shutdown method. Clear residual cmf related information that may be
in the schib when setting up a new subchannel.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
drivers/s390/cio/cio.c | 5 +++++
drivers/s390/cio/device.c | 2 ++
2 files changed, 7 insertions(+)
Index: quilt-2.6/drivers/s390/cio/cio.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/cio.c
+++ quilt-2.6/drivers/s390/cio/cio.c
@@ -619,6 +619,11 @@ cio_validate_subchannel (struct subchann
sch->schib.pmcw.ena = 0;
if ((sch->lpm & (sch->lpm - 1)) != 0)
sch->schib.pmcw.mp = 1; /* multipath mode */
+ /* clean up possible residual cmf stuff */
+ sch->schib.pmcw.mme = 0;
+ sch->schib.pmcw.mbfc = 0;
+ sch->schib.pmcw.mbi = 0;
+ sch->schib.mba = 0;
return 0;
out:
if (!cio_is_console(schid))
Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/device.c
+++ quilt-2.6/drivers/s390/cio/device.c
@@ -21,6 +21,7 @@
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <asm/param.h> /* HZ */
+#include <asm/cmb.h>
#include "cio.h"
#include "cio_debug.h"
@@ -1440,6 +1441,7 @@ static void ccw_device_shutdown(struct d
cdev = to_ccwdev(dev);
if (cdev->drv && cdev->drv->shutdown)
cdev->drv->shutdown(cdev);
+ disable_cmf(cdev);
}
struct bus_type ccw_bus_type = {
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
next prev parent reply other threads:[~2007-10-04 11:31 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-04 11:27 [patch 00/34] s390 patches for 2.6.24 Martin Schwidefsky
2007-10-04 11:27 ` [patch 01/34] cio: rename css to channel_subsystems Martin Schwidefsky
2007-10-04 11:27 ` [patch 02/34] cio: remove subchannel_add_files() Martin Schwidefsky
2007-10-04 11:27 ` [patch 03/34] cio: Fix some coding style issues in cmf Martin Schwidefsky
2007-10-04 11:27 ` [patch 04/34] cio: Kerneldoc comments for cmf Martin Schwidefsky
2007-10-04 11:27 ` [patch 05/34] cio: Add docbook comments Martin Schwidefsky
2007-10-04 11:27 ` [patch 06/34] cio: Add s390-drivers book Martin Schwidefsky
2007-10-04 11:27 ` [patch 07/34] cio: Minor style fixes Martin Schwidefsky
2007-10-04 11:27 ` [patch 08/34] cio: Disable channel path measurements on shutdown/reboot Martin Schwidefsky
2007-10-04 11:27 ` [patch 09/34] cio: Introduce ccw_bus_type.shutdown Martin Schwidefsky
2007-10-04 11:27 ` Martin Schwidefsky [this message]
2007-10-04 11:27 ` [patch 11/34] cio: Fix device attributes for early devices Martin Schwidefsky
2007-10-04 11:27 ` [patch 12/34] Add Documentation/s390/00-INDEX Martin Schwidefsky
2007-10-04 11:27 ` [patch 13/34] cio: Documentation update Martin Schwidefsky
2007-10-04 11:27 ` [patch 14/34] zcrypt: make init/exit functions static Martin Schwidefsky
2007-10-04 11:27 ` [patch 15/34] zcrypt: remove duplicated struct CPRBX definition Martin Schwidefsky
2007-10-04 11:27 ` [patch 16/34] zcrypt: fix ap_reset_domain() Martin Schwidefsky
2007-10-04 11:27 ` [patch 17/34] appldata_base: Misc cpuinit annotations and bugfix Martin Schwidefsky
2007-10-04 11:27 ` [patch 18/34] appldata_base: Remove module_exit function and modular stuff Martin Schwidefsky
2007-10-04 11:27 ` [patch 19/34] disassembler: fix output for insns with 6 operands Martin Schwidefsky
2007-10-04 11:27 ` [patch 20/34] disassembler: Remove redundant variable assignment Martin Schwidefsky
2007-10-04 11:27 ` [patch 21/34] Get rid of a bunch of sparse warnings again Martin Schwidefsky
2007-10-04 11:27 ` [patch 22/34] remove packed attribute from ext_int_info_t Martin Schwidefsky
2007-10-04 11:27 ` [patch 23/34] Get rid of ARCH_KMALLOC_MINALIGN Martin Schwidefsky
2007-10-04 11:27 ` [patch 24/34] qdio: dont cast function pointers and use them to call functions Martin Schwidefsky
2007-10-04 11:27 ` [patch 25/34] is_power_of_2 in drivers/s390/block/dasd_int.h Martin Schwidefsky
2007-10-04 11:27 ` [patch 26/34] qdio: change QDIO performance_stats error message priority Martin Schwidefsky
2007-10-04 11:27 ` [patch 27/34] Force link error if xchg/cmpxchg gets called with unsupported size Martin Schwidefsky
2007-10-04 11:27 ` [patch 28/34] Use IPL CLEAR for reipl under z/VM Martin Schwidefsky
2007-10-04 11:27 ` [patch 29/34] Remove obsolete recommendation for 8M ramdisk size Martin Schwidefsky
2007-10-04 11:27 ` [patch 30/34] zcore: fix inline assembly in memcpy_real() Martin Schwidefsky
2007-10-04 11:27 ` [patch 31/34] Make vmalloc area start at address > 4GB Martin Schwidefsky
2007-10-04 11:27 ` [patch 32/34] cpcmd: fix inline assembly usage Martin Schwidefsky
2007-10-04 11:27 ` [patch 33/34] tape: Fix medium state handling Martin Schwidefsky
2007-10-04 11:27 ` [patch 34/34] vmwatchdog: fix broken inline assembly Martin Schwidefsky
2007-10-04 19:10 ` [patch 00/34] s390 patches for 2.6.24 Sam Ravnborg
2007-10-05 8:30 ` Martin Schwidefsky
2007-10-04 19:15 ` [PATCH 1/2] s390: beautify vmlinux.lds Sam Ravnborg
2007-10-04 19:18 ` [PATCH 2/2] s390: use PAGE_SIZE in vmlinux.lds Sam Ravnborg
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