- 06 Jan, 2006 40 commits
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Peter Oberparleiter authored
When the sclp_cpi module is loaded on a system which does not support the required SCLP call (e.g. on z/VM), ENOSUPP is returned to user space. The correct return value is EOPNOTSUPP. Signed-off-by:
Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Cornelia Huck authored
- Use kzalloc() in blacklist.c. - Kill unwanted casts in blacklist.c. - Provide release function for struct channel_subsystem. Signed-off-by:
Cornelia Huck <huckc@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Eric Rossman authored
Signed-off-by:
Eric Rossman <edrossma@us.ibm.com> Signed-off-by:
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Cornelia Huck authored
Add support for multiple subchannel sets. Works with arbitrary devices in subchannel set 1 and is transparent to device drivers. Although currently only two subchannel sets are available, this will work with the architectured maximum number of subchannel sets as well. Signed-off-by:
Cornelia Huck <cohuck@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
Convert /proc/cio_ignore to a sequential file. This makes multiple subchannel sets support easier. Signed-off-by:
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Cornelia Huck authored
struct channel_subsystem encapsulates several per channel subsystem properties, like status of chpids or the global path group id. Signed-off-by:
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Cornelia Huck authored
for_each_subchannel() is an iterator calling a function for every possible subchannel id until non-zero is returned. Convert the current iterating functions to it. Signed-off-by:
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Cornelia Huck authored
This patch introduces a struct subchannel_id containing the subchannel number (formerly referred to as "irq") and switches code formerly relying on the subchannel number over to it. While we're touching inline assemblies anyway, make sure they have correct memory constraints. Signed-off-by:
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Frank Pavlic authored
New feature V=V qdio pass-through. QDIO and HiperSockets processing in z/VM V=V guest environments (as well as V=R with z/VM running in LPAR mode) requires shadowing of all QDIO architecture queue elements. Especially the shadowing of SBALs and SLSBs structures in the hypervisor, and the need to issue SIGA SYNC operations to observe state changes, eventually causes significant CPU processing overhead in the hypervisor. The QDIO pass-through support for V=V guests avoids the shadowing of SBALs and SLSBs. This significantly reduces the hypervisor overhead for QDIO based I/O. Signed-off-by:
Frank Pavlic <pavlic@de.ibm.com> Signed-off-by:
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Jan Glauber authored
Add new test vectors to the AES test suite for AES CBC and AES with plaintext larger than AES blocksize. Signed-off-by:
Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by:
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Jan Glauber authored
Add support for the hardware accelerated AES crypto algorithm. Signed-off-by:
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Jan Glauber authored
Add support for the hardware accelerated sha256 crypto algorithm. Signed-off-by:
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Jan Glauber authored
Replace all references to z990 by s390 in the in-kernel crypto files in arch/s390/crypto. The code is not specific to a particular machine (z990) but to the s390 platform. Big diff, does nothing.. Signed-off-by:
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Andreas Krebbel authored
Signed-off-by:
Andreas Krebbel <krebbel1@de.ibm.com> Signed-off-by:
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Horst Hummel authored
To properly support multipath-failover handling, the linux block layer has introduced a special request flag, 'REQ_FAILFAST'. This flag is now used to return requests immediately in case the device is not operational. Signed-off-by:
Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by:
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Horst Hummel authored
The IOCTL BIODASDPRRD had no return code for 'profiling is inactive' and therefore tunedasd wrote misleading message for request-counter = 0. Introduce return-code EIO for inactive profiling. Signed-off-by:
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Carsten Otte authored
Extract the s390_root_dev_* functions from the common I/O layer as they are also used by non-ccw device drivers. Signed-off-by:
Carsten Otte <cotte@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
If we receive path not operational indications (pnom in pmcw nonzero), we switch off those paths. To catch them becoming available again, we have to recalculate the lpm from the pmcw each time we start path verification. Signed-off-by:
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Martin Schwidefsky authored
There are some more places where the use of cputime_t instead of an integer type and the associated macros is necessary for the virtual cputime accounting on s390. Affected are the s390 specific appldata code and BSD process accounting. Signed-off-by:
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Martin Schwidefsky authored
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Cedric Le Goater authored
Check return code of do_sigaltstack and force a SIGSEGV if it is -EFAULT. Signed-off-by:
Cedric Le Goater <clg@fr.ibm.com> Signed-off-by:
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Martin Schwidefsky authored
Convert __access_ok to an inline C function and change __get_user primitive to avoid uaccess compiler warnings. Signed-off-by:
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Peter Oberparleiter authored
Moved definition of CMS volume label to vtoc.h and modify partitions/ibm.c to use this volume label definition instead of anonymous array. Signed-off-by:
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Martin Schwidefsky authored
Hugh Dickins <hugh@veritas.com> Fix the broken atomic_cmpxchg primitive. Add atomic_sub_and_test, atomic64_sub_return, atomic64_sub_and_test, atomic64_cmpxchg, atomic64_add_unless and atomic64_inc_not_zero. Replace old style atomic_compare_and_swap by atomic_cmpxchg. Shorten the whole header by defining most primitives with the two inline functions atomic_add_return and atomic_sub_return. In addition this patch contains the s390 related fixes of Hugh's "mm: fill arch atomic64 gaps" patch. Signed-off-by:Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Jeff Dike authored
Free the network IRQ when closing down the network devices at shutdown. Delete the device from the opened devices list on close. These prevent an -EBADF when later disabling SIGIO on all extant descriptors and a complaint from free_irq about freeing the IRQ twice. Signed-off-by:
Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by:
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Jeff Dike authored
Fix up some bogus spacing in the mconsole driver. Also delete the emacs formatting comment at the end. Signed-off-by:
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Jeff Dike authored
Pass sysrq output back to the mconsole client using the mechanism introduced for stack output. Signed-off-by:
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Jeff Dike authored
The stack command now sends the printk output back to the mconsole client. This is done by registering a special console for the mconsole driver. This receives all printk output. Normally, it is ignored, but when a stack command is issued, any printk output will be sent back to the client. This will capture any printk output, whether it is stack output or not, since we can't tell the difference. Signed-off-by:
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Jeff Dike authored
This is needed for the console output patch, since we have a possibly non-NULL-terminated string there. So, the new interface takes a string and a length, and the old interface calls strlen on its string and calls the new interface with the length. There's also a bit of whitespace cleanup. Signed-off-by:
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Jeff Dike authored
Produce a compile-time error if both MODE_SKAS and MODE_TT are disabled. Signed-off-by:
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Jeff Dike authored
Code cleanup - unregister_winch and winch_cleanup had some duplicate code. This is now abstracted out into free_winch. Signed-off-by:
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Jeff Dike authored
This patch cleans up the umid code: - The only_if_set argument to get_umid is gone. - get_umid returns an empty string rather than NULL if there is no umid. - umid_is_random is gone since its users went away. - Some printfs were turned into printks because the code runs late enough that printk is working. - Error paths were cleaned up. - Some functions now return an error and let the caller print the error message rather than printing it themselves. This eliminates the practice of passing a pointer to printf or printk in, depending on where in the boot process we are. - Major tidying of not_dead_yet - mostly error path cleanup, plus a comment explaining why it doesn't react to errors the way you might expect. - Calls to os_* interfaces that were moved under os are changed back to their native libc forms. - snprintf, strlcpy, and their bounds-checking friends are used more often, replacing by-hand bounds checking in some places. Signed-off-by:
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Jeff Dike authored
I reworked Gennady's umid OS abstraction patch because the code shouldn't be moved entirely to os. As it turns out, I moved most of it anyway. This patch is the minimal one needed to move the code and have it work. It turns out that the concept of the umid is OS-independent, but almost everything else about the implementation is OS-dependent. This is code movement without cleanup - a follow-on patch tidies everything up without shuffling code around. Signed-off-by:
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Jeff Dike authored
This patch adds support for throttling and unthrottling input when the tty driver can't handle it. Signed-off-by:
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Jeff Dike authored
When the tty flip_buf is full, it's a good idea to delay the input processing for a jiffy, rather than just scheduling the tasklet immediately. Signed-off-by:
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Jeff Dike authored
This patch simplifies the opening and closing of host console devices and the registration and deregistration of IRQs. The intent is to make it obvious that an IRQ can't exist without an open file descriptor. chan_enable will now open the channel, and when both opening and IRQ registration are desired, this should be used. Opening only is done for the initial console, so that interface still needs to exist. The free_irqs_later interface is now gone. It was intended to avoid freeing an IRQ while it was being processed. It did this, but it didn't eliminate the possiblity of free_irq being called from an interrupt, which is bad. In its place is a list of irqs to be freed, which is processed by the signal handler just before exiting. close_one_chan now disables irqs. When a host device disappears, it is just closed, and that disables IRQs. The device id registered with the IRQ is now the chan structure, not the tty. This is because the interrupt arrives on a descriptor associated with the channel. This caused equivalent changes in the arguments to line_timer_cb. line_disable is gone since it is not used any more. The count field in the line structure is gone. tty->count is used instead. The complicated logic in sigio_handler with freeing IRQs when necessary and making sure its idea of the next irq is correct is now much simpler. The irq list can't be rearranged underneath it, so it is now a simple list walk. Signed-off-by:
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Jeff Dike authored
This patch changes when console devices are configured in order to prepare the ground for the next patch. parse_chan_pair is now done earlier, when initcalls are run, rather than when the device is opened. When a host device disappears, the channel list is closed, but not freed. This is required by the previous change. line_config now takes the options structure as an argument, and line_open doesn't. Signed-off-by:
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Jeff Dike authored
line_setup is changed to return the device which it set up, rather than just success or failure. This will be important in the line-config patch. Signed-off-by:
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Jeff Dike authored
Some structure fields were being dynamically initialized when they could be initialized at compile-time instead. This also makes some declarations static (in the C sense). Signed-off-by:
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Jeff Dike authored
A bit of restructuring which eliminates the all_allowed argument (which is mconsole-specific) to line_setup. That logic is moved to the mconsole callback. Signed-off-by:
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