- 26 3月, 2009 1 次提交
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由 Heiko Carstens 提交于
Split machine check handler code and move it to cio and kernel code where it belongs to. No functional change. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 09 1月, 2009 1 次提交
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由 Coly Li 提交于
When I review ocfs2 code, find there are 2 typos to "successfull". After doing grep "successfull " in kernel tree, 22 typos found totally -- great minds always think alike :) This patch fixes all the similar typos. Thanks for Randy's ack and comments. Signed-off-by: NColy Li <coyli@suse.de> Acked-by: NRandy Dunlap <randy.dunlap@oracle.com> Acked-by: NRoland Dreier <rolandd@cisco.com> Cc: Jeremy Kerr <jk@ozlabs.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Vlad Yasevich <vladislav.yasevich@hp.com> Cc: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 31 12月, 2008 1 次提交
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由 Martin Schwidefsky 提交于
Distinguish the cputime of the idle process where idle is actually using cpu cycles from the cputime where idle is sleeping on an enabled wait psw. The former is accounted as system time, the later as idle time. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 25 12月, 2008 4 次提交
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由 Michael Ernst 提交于
Signed-off-by: NMichael Ernst <mernst@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
To change the configuration of a subchannel we alter the modifiable bits of the subchannel's schib field and issue a modify subchannel. There can be the case that not all changes were applied -or worse- quietly overwritten by the hardware. With the next store subchannel we obtain the current state of the hardware but lose our target configuration. With this patch we introduce a subchannel_config structure which contains the target subchannel configuration. Additionally the msch wrapper cio_modify is replaced with cio_commit_config which copies the desired changes to a temporary schib. msch is then called with the temporary schib. This schib is only written back to the subchannel if all changes were applied. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
There is the chance that we get condition code 0 for a stsch but the resulting schib is not vaild. In the current code there are 2 cases: * we do a check for validity of the schib after stsch, but at this time we have already stored the invaild schib in the subchannel structure. This may lead to problems. * we don't do a check for validity, which is not that good either. The patch addresses both issues by introducing the stsch wrapper cio_update_schib which performs stsch on a local schib. This schib is only written back to the subchannel if it's valid. side note: For some functions (chp_events) the return codes are different now (-ENXIO vs -ENODEV) but this shouldn't do harm since the caller doesn't check for _specific_ errors. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Heiko Carstens 提交于
Move cio_tpi() to the rest of the CONFIG_CCW_CONSOLE functions to get rid of this one: drivers/s390/cio/cio.c:115: warning: 'cio_tpi' defined but not used Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 11 10月, 2008 5 次提交
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由 Heiko Carstens 提交于
Move cio's private simple udelay function to lib/delay.c and turn it into something much more readable. So we have all implementations at one place. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Heiko Carstens 提交于
In cio_tpi only disable bottom halves when not in interrupt context. Otherwise a WARN_ON gets triggered. Besides that, when we are in interrupt context bottom halves are disabled anyway. Fixes this one: Badness at kernel/softirq.c:77 Modules linked in: CPU: 2 Not tainted 2.6.26 #4 Process swapper (pid: 0, task: 000000003fe83db0, ksp: 000000003fea7d28) Krnl PSW : 0404c00180000000 0000000000053f4e (__local_bh_disable+0xbe/0xcc) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 EA:3 Krnl GPRS: 0000000000008ee0 00000000005f95e0 0000000000000000 0000000000000001 000000000020be92 0000000000000000 0000000000000210 00000000005d36c0 000000003fb5f4d8 0000000000000000 000000000020bed0 000000003fb5f3c8 00000000009be920 0000000000364898 000000003fb5f408 000000003fb5f3c8 Krnl Code: 0000000000053f42: bf2f1000 icm %r2,15,0(%r1) 0000000000053f46: a774ffc5 brc 7,53ed0 0000000000053f4a: a7f40001 brc 15,53f4c >0000000000053f4e: a7280001 lhi %r2,1 0000000000053f52: 50201000 st %r2,0(%r1) 0000000000053f56: a7f4ffbd brc 15,53ed0 0000000000053f5a: 0707 bcr 0,%r7 0000000000053f5c: a7f13fc0 tmll %r15,16320 Call Trace: ([<0000000000000210>] 0x210) [<0000000000053f86>] local_bh_disable+0x2a/0x38 [<000000000020bed0>] wait_cons_dev+0xd4/0x154 [<0000000000247cb2>] raw3215_make_room+0x6a/0x1a8 [<000000000024861a>] raw3215_write+0x86/0x28c [<00000000002488a0>] con3215_write+0x80/0x110 [<000000000004c3e0>] __call_console_drivers+0xc8/0xe4 [<000000000004c47e>] _call_console_drivers+0x82/0xc4 [<000000000004c744>] release_console_sem+0x218/0x2c0 [<000000000004cf64>] vprintk+0x3c0/0x504 [<0000000000354a4a>] printk+0x52/0x64 [<0000000000088004>] __print_symbol+0x40/0x50 [<0000000000071dbc>] print_stack_trace+0x78/0xac [<0000000000079e78>] print_lock_dependencies+0x148/0x208 [<000000000007a050>] print_irq_inversion_bug+0x118/0x15c [<000000000007a106>] check_usage_forwards+0x72/0x84 [<000000000007a36e>] mark_lock+0x1d2/0x594 [<000000000007baca>] __lock_acquire+0x886/0xf48 [<000000000007c234>] lock_acquire+0xa8/0xe0 [<0000000000350316>] _write_lock+0x56/0x98 [<000000000026cd92>] zfcp_erp_adapter_reopen+0x4e/0x8c [<000000000026f1e8>] zfcp_qdio_int_resp+0x2e4/0x2f4 [<00000000002210f4>] qdio_int_handler+0x274/0x888 [<00000000002177b6>] ccw_device_call_handler+0x6e/0xd8 [<0000000000215336>] ccw_device_irq+0xd6/0x160 [<0000000000212f88>] io_subchannel_irq+0x8c/0x118 [<000000000020c120>] do_IRQ+0x1d0/0x1fc [<00000000000270b2>] io_return+0x0/0x8 [<000000000001c8a4>] cpu_idle+0x178/0x21c ([<000000000001c884>] cpu_idle+0x158/0x21c) [<00000000003483a2>] start_secondary+0xb6/0xc8 INFO: lockdep is turned off. Last Breaking-Event-Address: [<0000000000053f4a>] __local_bh_disable+0xba/0xcc Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Peter Oberparleiter 提交于
Fix incorrect in- and output constraints, remove volatile declaration of inline assembly parameters and reformat constraint declarations to be more consistent. Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Cornelia Huck 提交于
Convert remaining s390 users setting bus_id to dev_set_name() or init_name. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Kay Sievers 提交于
bus_id -> dev_name() conversions in s390 code. [cornelia.huck@de.ibm.com: minor adaptions] Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 17 9月, 2008 1 次提交
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由 Stefan Weinhuber 提交于
The functions cio_tm_start_key and cio_start_key use the same private orb structure of a subchannel, so the orb needs to be cleared of old data before it is used again. A respective memset is missing from cio_start_key and hereby added. Signed-off-by: NStefan Weinhuber <wein@de.ibm.com> Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 09 9月, 2008 1 次提交
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由 Cornelia Huck 提交于
ssch() has two classes of return codes: - condition codes (0-3) which need to be translated to Linux error codes - Linux error codes (-EIO on exceptions) which should be passed to the caller (instead of erronously being handled like condition code 3) Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 14 7月, 2008 12 次提交
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由 Michael Ernst 提交于
Unnecessary dev_info, dev_warn and printk messages are removed. Signed-off-by: NMichael Ernst <mernst@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
This patch adds a driver for subchannels of type chsc. A device /dev/chsc is created which may be used to issue ioctls to: - obtain information about the machine's I/O configuration - dynamically change the machine's I/O configuration via asynchronous chsc commands Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Use the new isc registration functions for all places that need an I/O interruption subclass. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Enhance the adapter interruption API so that device drivers can register a handler for a specific interruption subclass. This will allow different device drivers to move to differently prioritized subclasses in order to avoid congestion. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Replace the numeric values for I/O interruption subclass usage with abstract definitions and collect them all in asm/isc.h. This gives us a better overview of which iscs are actually used and makes it possible to better spread out isc usage in the future. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Peter Oberparleiter 提交于
Provide functions for assembling and starting fcx enabled I/O request blocks. Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Peter Oberparleiter 提交于
Extend the scsw data structure to the format required by fcx. Also provide helper functions for easier access to fields which are present in both the traditional as well as the modified format. Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Rework the css driver methods to provide sane callbacks for subchannels of all types. As a bonus, this cleans up and simplyfies the machine check handling for I/O subchannels a lot. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Register all valid subchannels, not only I/O subchannels. Move I/O subchannel specific initialization to io_subchannel_probe(). Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Cornelia Huck 提交于
Fallout from the console isc 7 -> 1 change. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 10 6月, 2008 1 次提交
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由 Cornelia Huck 提交于
Priorities for I/O interruption subclasses range from 0 (highest) to 7 (lowest). Unfortunately, the console has been using isc 7 instead of an isc with a higher priority than regular I/O subchannels (which use 3). Fix this by making the console use isc 1. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 07 5月, 2008 1 次提交
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由 Michael Ernst 提交于
The only sporadically used CIO_DEBUG messages are replaced by ordinary CIO_MSG_EVENT messages. The CIO_MSG_EVENT messages debug levels are consolidated. Signed-off-by: NMichael Ernst <mernst@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 30 4月, 2008 1 次提交
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由 Cornelia Huck 提交于
Introduce an ->isc field in the subchannel to store the desired interruption subclass, since sch->schib.pmcw.isc may be overwritten by the hardware on stsch() after machine checks. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 17 4月, 2008 3 次提交
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由 Heiko Carstens 提交于
Most noteable part of this commit is the new local header file entry.h which contains all the function declarations of functions that get only called from asm code or are arch internal. That way we can avoid extern declarations in C files. This is more or less the same that was done for sparc64. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Heiko Carstens 提交于
This way we get rid of s390's NO_IDLE_HZ and use the generic dynticks variant instead. In addition we get high resolution timers for free. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Heiko Carstens 提交于
Remove the program check generating monitor calls and use function calls instead. Theres is no real advantage in using monitor calls, but they do make debugging harder, because of all the program checks it generates. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 26 1月, 2008 7 次提交
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由 Peter Tiedemann 提交于
Signed-off-by: NPeter Tiedemann <ptiedem@de.ibm.com>
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由 Michael Ernst 提交于
Allocated kernel memory for locks is not freed in case of subchannel found to be invalid. Signed-off-by: NMichael Ernst <mernst@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Cornelia Huck 提交于
Some fields may be !0 only for I/O subchannels. Add some checks where required. Also adapt cio_enable_subchannel() to make the caller specify the intparm, which makes it more generic. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Peter Oberparleiter 提交于
From: Cornelia Huck <cornelia.huck@de.ibm.com> Change the adapter interrupt interface in order to allow multiple adapter interrupt handlers to be registered. Indicators are now allocated by cio instead of the device driver. The qdio parts have been Acked-by: NUrsula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Cornelia Huck 提交于
Introduce a private pointer in struct subchannel to store per-subchannel type data (cannot use dev->priv since this is already used for something else). Create a new header io_sch.h for I/O subchannel specific structures and instructions. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Cornelia Huck 提交于
Cleanup cio_debug.h. Also make CIO_DEBUG add the "cio:" prefix to the printk string so that it isn't needed for the debug feature. Fix outdated comments for cio_debug_init() and clean it up. Enlarge cio_crw to the same size as cio_msg so we may actually find some relevant information there. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Cornelia Huck 提交于
Make all callbacks in css_driver take a struct subchannel (and not a struct device). Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 12 10月, 2007 1 次提交
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由 Cornelia Huck 提交于
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: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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