* Rename ide-cd kernel module to ide-cd_mod in preparation to moving code out
from ide-cd.[c,h]. Add MODULE_ALIAS("ide-cd") to preserve compatibility.
* Move VERBOSE_IDE_CD_ERRORS code from ide-cd.[c,h] to ide-cd_verbose.c.
ide-cd_verbose.c is IDE subsystem independent and may be easily converted
into generic library usable by other drivers (i.e. libata) if needed.
* Add CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS config option to drivers/ide/Kconfig
replacing VERBOSE_IDE_CD_ERRORS define. Make this config option enabled by
default and visible only if CONFIG_EMBEDDED is defined.
before the patch:
text data bss dec hex filename
22841 360 1056 24257 5ec1 drivers/ide/ide-cd.o
after the patch w/ CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y:
text data bss dec hex filename
22857 360 1056 24273 5ed1 drivers/ide/ide-cd_mod.o
after the patch w/ CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=n:
text data bss dec hex filename
15091 360 1056 16507 407b drivers/ide/ide-cd_mod.o
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Coding style fixes for VERBOSE_IDE_CD_ERRORS code.
* Add KERN_{ERR,CONT} printk() levels where needed.
This is a preparation for moving this code out of ide-cd.[c,h].
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Re-organize handling of quirky devices:
* Add struct cd_list_entry, ide_cd_quirks_list[] and ide_cd_flags() helper.
* Set flags returned by ide_cd_flags() in ide_cdrom_setup().
* Add IDE_CD_FLAG_VERTOS_{300_SDD,600_ESD} and IDE_CD_FLAG_SANYO_3CD flags.
* Move device quirks from ide_cdrom_setup() to ide_cd_quirks_list[].
* Rename IDE_CD_FLAG_NEC260 to IDE_CD_FLAG_PRE_ATAPI12 and handle
quirky Stingray 8X CD-ROM using ide_cd_quirks_list[].
* Add IDE_CD_FLAG_FULL_CAPS_PAGE flag and handle quirky ACER 50X CD-ROM
/ WPI 32X CD-ROM using ide_cd_quirk_list[].
* Add IDE_CD_FLAG_PLAY_AUDIO_OK flag and handle quirky MATSHITA DVD-ROMs
using ide_cd_quirks_list[].
* Add IDE_CD_FLAG_LE_SPEED_FIELDS flag and handle quirky ACER/AOpen 24X
CD-ROM using ide_cd_quirk_list[].
* Fix some comments about quirky devices while at it.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Use BCD2BIN()/BIN2BCD() macros from <linux/bcd.h>
and remove the local bcd2bin()/bin2bcd() inlines.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Remove unused ->{writing,reserved} fields from struct ide_cd_config_flags.
* Move ->max_speed from struct ide_cd_config_flags to struct cdrom_info.
* Move ->current_speed from struct ide_cd_state_flags to struct cdrom_info.
* Add defines for config and state flags.
* Add 'unsigned int cd_flags' to struct cdrom_info and use ->cd_flags
instead of ->{config,state}_flags.
* Remove no longer needed struct ide_cd_{config,state}_flags.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
While at it rename 'info' variable to 'cd' in
ide_cdrom_probe_capabilities() and ide_cdrom_setup().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Use CDC_* flags directly and remove redundant flags from ->config_flags.
While at it:
* Add KERN_CONT to printk()-s in ide_cdrom_probe_capabilities().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
ide_cd_probe() zeroes 'info' prior to calling ide_cdrom_setup() so there
is no need to explicitly zero 'info' fields in the latter function.
Ditto for fields of CDROM_STATE_FLAGS(), CDROM_CONFIG_FLAGS() and 'cdi'
(all are embedded in 'info').
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Make cdrom_newpc_intr() match cdrom_{read,write}_intr() w.r.t.
handling DMA errors:
* disable DMA before cdrom_decode_status() call
* log the device name and the type of the request (read/write)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
If drive still wants to transfer the data we need to pad the transfer
instead of just finishing the request.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add ide_cd_pad_transfer() helper and use it in cdrom_[new]pc_intr()
and cdrom_{read,write}_check_ireason().
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Unify writing and reading handling in cdrom_pc_intr() using xfer_func_t.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This patch fixes the following section mismatch:
<-- snip -->
...
WARNING: vmlinux.o(.text+0x3b641c): Section mismatch in reference from the function .pmac_ide_setup_device() to the function .init.text:.pmac_ide_setup_dma()
...
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
After commit 7267c33774
wait_drive_not_busy() can become static again.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
- ide_scan_pcibus() can become static
- instead of ide_scan_pci() we can use ide_scan_pcibus() directly
in module_init()
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To avoid confusion between 'built-in' drivers and 'on-board'
controllers, consistently use the term 'on-board' for controllers.
Minor line-wrapping improvements in descriptions for config options.
[ Bart: thanks to Jan for 'built-in'->'on-board' suggestion ]
Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Commit cbb010c180
ide: drop 'initializing' argument from ide_register_hw()
* Rename init_hwif_data() to ide_init_port_data() and export it.
* For all users of ide_register_hw() with 'initializing' argument set
hwif->present and hwif->hold are always zero so convert these host
drivers to use ide_find_port()+ide_init_port_data()+ide_init_port_hw()
instead (also no need for init_hwif_default() call since the setup
done by it gets over-ridden by ide_init_port_hw() call).
* Drop 'initializing' argument from ide_register_hw().
introduced the usage of a hwif variable, but forgot to declare the actual
variable.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (24 commits)
pci: allow multiple calls to pcim_enable_device()
Blackfin pata-bf54x driver: fix compiling bug - no ata_port struct in struct ata_device any more
Blackfin pata-bf54x driver: should cover all possible interrupt sources
Blackfin pata-bf54x driver: Add debug information
Blackfin pata-bf54x driver: Remove obsolete PM function
pata_sl82c105: dual channel support
ata_piix.c: make piix_merge_scr() static
sata_nv: fix for completion handling
sata_mv: Remove PCI dependency
sata_mv ncq Comments and version bump
sata_mv ncq Remove post internal cmd op
sata_mv ncq Enable NCQ operation
sata_mv ncq Introduce per-tag SG tables
ata_piix: IDE mode SATA patch for Intel ICH10 DeviceID's
ahci: RAID mode SATA patch for Intel ICH10 DeviceID's
sata_mv ncq Use DMA memory pools for hardware memory tables
sata_mv ncq Restrict max sectors to 8-bits on GenII NCQ
sata_mv ncq Ignore response status LSB on NCQ
sata_mv ncq Use hqtag instead of ioid
sata_mv ncq Add want ncq parameter for EDMA configuration
...
It's possible for a RPC to outlive the lockd daemon that created it, so
we need to make sure that all RPC's are killed when lockd is coming
down. When nlm_shutdown_hosts is called, kill off all RPC tasks
associated with the host. Since we need to wait until they have all gone
away, we might as well just shut down the RPC client altogether.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Move the initialzation in __svc_create_thread that happens prior to
thread creation to a new function. Export the function to allow
services to have better control over the svc_rqst structs.
Also rearrange the rqstp initialization to prevent NULL pointer
dereferences in svc_exit_thread in case allocations fail.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Neil Brown points out that we're checking buf[size-1] in a couple places
without first checking whether size is zero.
Actually, given the implementation of simple_transaction_get(), buf[-1]
is zero, so in both of these cases the subsequent check of the value of
buf[size-1] will catch this case.
But it seems fragile to depend on that, so add explicit checks for this
case.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Acked-by: NeilBrown <neilb@suse.de>
Neither EPERM and ENOENT map to valid errors for PUTROOTFH according to
rfc 3530, and, if anything, ENOENT is likely to be slightly more
informative; so don't bother mapping ENOENT to EPERM. (Probably this
was originally done because one likely cause was that there is an fsid=0
export but that it isn't permitted to this particular client. Now that
we allow WRONGSEC returns, this is somewhat less likely.)
In the long term we should work to make this situation less likely,
perhaps by turning off nfsv4 service entirely in the absence of the
pseudofs root, or constructing a pseudofilesystem root ourselves in the
kernel as necessary.
Thanks to Benny Halevy <bhalevy@panasas.com> for pointing out this
problem.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Benny Halevy <bhalevy@panasas.com>
This logic parses the ONCRDMA protocol headers that
precede the actual RPC header. It is placed in a separate
file to keep all protocol aware code in a single place.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This file implements the RDMA transport sendto function. A RPC reply
on an RDMA transport consists of some number of RDMA_WRITE requests
followed by an RDMA_SEND request. The sendto function parses the
ONCRPC RDMA reply header to determine how to send the reply back to
the client. The send queue is sized so as to be able to send complete
replies for requests in most cases. In the event that there are not
enough SQ WR slots to reply, e.g. big data, the send will block the
NFSD thread. The I/O callback functions in svc_rdma_transport.c that
reap WR completions wake any waiters blocked on the SQ. In general,
the goal is not to block NFSD threads and the has_wspace method
stall requests when the SQ is nearly full.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This file implements the RDMA transport recvfrom function. The function
dequeues work reqeust completion contexts from an I/O list that it shares
with the I/O tasklet in svc_rdma_transport.c. For ONCRPC RDMA, an RPC may
not be complete when it is received. Instead, the RDMA header that precedes
the RPC message informs the transport where to get the RPC data from on
the client and where to place it in the RPC message before it is delivered
to the server. The svc_rdma_recvfrom function therefore, parses this RDMA
header and issues any necessary RDMA operations to fetch the remainder of
the RPC from the client.
Special handling is required when the request involves an RDMA_READ.
In this case, recvfrom submits the RDMA_READ requests to the underlying
transport driver and then returns 0. When the transport
completes the last RDMA_READ for the request, it enqueues it on a
read completion queue and enqueues the transport. The recvfrom code
favors this queue over the regular DTO queue when satisfying reads.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This file implements the core transport data management and I/O
path. The I/O path for RDMA involves receiving callbacks on interrupt
context. Since all the svc transport locks are _bh locks we enqueue the
transport on a list, schedule a tasklet to dequeue data indications from
the RDMA completion queue. The tasklet in turn takes _bh locks to
enqueue receive data indications on a list for the transport. The
svc_rdma_recvfrom transport function dequeues data from this list in an
NFSD thread context.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This file implements the RDMA transport module initialization and
termination logic and registers the transport sysctl variables.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This file defines the data types used by the SVCRDMA transport module.
The principle data structure is the transport specific extension to
the svcxprt structure.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
