31 Dec, 2009
1 commit
-
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
drivers/dma: Correct use after free
drivers/dma: drop unnecesary memset
ioat2,3: put channel hardware in known state at init
async_tx: expand async raid6 test to cover ioatdma corner case
ioat3: fix p-disabled q-continuation
sh: fix DMA driver's descriptor chaining and cookie assignment
dma: at_hdmac: correct incompatible type for argument 1 of 'spin_lock_bh'
18 Dec, 2009
1 commit
-
Add explicit 11 and 12 disks cases to exercise the 0 < src_cnt % 8 < 3
corner case in the ioatdma driver.Signed-off-by: Dan Williams
15 Dec, 2009
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits)
m68k: rename global variable vmalloc_end to m68k_vmalloc_end
percpu: add missing per_cpu_ptr_to_phys() definition for UP
percpu: Fix kdump failure if booted with percpu_alloc=page
percpu: make misc percpu symbols unique
percpu: make percpu symbols in ia64 unique
percpu: make percpu symbols in powerpc unique
percpu: make percpu symbols in x86 unique
percpu: make percpu symbols in xen unique
percpu: make percpu symbols in cpufreq unique
percpu: make percpu symbols in oprofile unique
percpu: make percpu symbols in tracer unique
percpu: make percpu symbols under kernel/ and mm/ unique
percpu: remove some sparse warnings
percpu: make alloc_percpu() handle array types
vmalloc: fix use of non-existent percpu variable in put_cpu_var()
this_cpu: Use this_cpu_xx in trace_functions_graph.c
this_cpu: Use this_cpu_xx for ftrace
this_cpu: Use this_cpu_xx in nmi handling
this_cpu: Use this_cpu operations in RCU
this_cpu: Use this_cpu ops for VM statistics
...Fix up trivial (famous last words) global per-cpu naming conflicts in
arch/x86/kvm/svm.c
mm/slab.c
09 Dec, 2009
1 commit
-
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
hwrng: core - Prevent too-small buffer sizes
hwrng: virtio-rng - Convert to new API
hwrng: core - Replace u32 in driver API with byte array
crypto: ansi_cprng - Move FIPS functions under CONFIG_CRYPTO_FIPS
crypto: testmgr - Add ghash algorithm test before provide to users
crypto: ghash-clmulni-intel - Put proper .data section in place
crypto: ghash-clmulni-intel - Use gas macro for PCLMULQDQ-NI and PSHUFB
crypto: aesni-intel - Use gas macro for AES-NI instructions
x86: Generate .byte code for some new instructions via gas macro
crypto: ghash-intel - Fix irq_fpu_usable usage
crypto: ghash-intel - Add PSHUFB macros
crypto: ghash-intel - Hard-code pshufb
crypto: ghash-intel - Fix building failure on x86_32
crypto: testmgr - Fix warning
crypto: ansi_cprng - Fix test in get_prng_bytes
crypto: hash - Remove cra_u.{digest,hash}
crypto: api - Remove digest case from procfs show handler
crypto: hash - Remove legacy hash/digest code
crypto: ansi_cprng - Add FIPS wrapper
crypto: ghash - Add PCLMULQDQ accelerated implementation
08 Dec, 2009
1 commit
-
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)
security/tomoyo: Remove now unnecessary handling of security_sysctl.
security/tomoyo: Add a special case to handle accesses through the internal proc mount.
sysctl: Drop & in front of every proc_handler.
sysctl: Remove CTL_NONE and CTL_UNNUMBERED
sysctl: kill dead ctl_handler definitions.
sysctl: Remove the last of the generic binary sysctl support
sysctl net: Remove unused binary sysctl code
sysctl security/tomoyo: Don't look at ctl_name
sysctl arm: Remove binary sysctl support
sysctl x86: Remove dead binary sysctl support
sysctl sh: Remove dead binary sysctl support
sysctl powerpc: Remove dead binary sysctl support
sysctl ia64: Remove dead binary sysctl support
sysctl s390: Remove dead sysctl binary support
sysctl frv: Remove dead binary sysctl support
sysctl mips/lasat: Remove dead binary sysctl support
sysctl drivers: Remove dead binary sysctl support
sysctl crypto: Remove dead binary sysctl support
sysctl security/keys: Remove dead binary sysctl support
sysctl kernel: Remove binary sysctl logic
...
01 Dec, 2009
2 commits
-
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: gcm - fix another complete call in complete fuction
crypto: padlock-aes - Use the correct mask when checking whether copying is required
23 Nov, 2009
2 commits
-
fips_cprng_get_random and fips_cprng_reset is used only by
CONFIG_CRYPTO_FIPS. This also fixes compilation warnings:crypto/ansi_cprng.c:360: warning: ‘fips_cprng_get_random’ defined but not used
crypto/ansi_cprng.c:393: warning: ‘fips_cprng_reset’ defined but not usedSigned-off-by: Jaswinder Singh Rajput
Acked-by: Neil Horman
Signed-off-by: Herbert Xu -
Add ghash algorithm test before provide it to users
Signed-off-by: Youquan, Song
Signed-off-by: Herbert Xu
20 Nov, 2009
1 commit
-
ioat3.2 does not support asynchronous error notifications which makes
the driver experience latencies when non-zero pq validate results are
expected. Provide a mechanism for turning off async_xor_val and
async_syndrome_val via Kconfig. This approach is generally useful for
any driver that specifies ASYNC_TX_DISABLE_CHANNEL_SWITCH and would like
to force the async_tx api to fall back to the synchronous path for
certain operations.Signed-off-by: Dan Williams
19 Nov, 2009
1 commit
-
For consistency drop & in front of every proc_handler. Explicity
taking the address is unnecessary and it prevents optimizations
like stubbing the proc_handlers to NULL.Cc: Alexey Dobriyan
Cc: Ingo Molnar
Cc: Joe Perches
Signed-off-by: Eric W. Biederman
16 Nov, 2009
1 commit
-
The flow of the complete function (xxx_done) in gcm.c is as follow:
void complete(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;if (!err) {
err = async_next_step();
if (err == -EINPROGRESS || err == -EBUSY)
return;
}complete_for_next_step(areq, err);
}But *areq may be destroyed in async_next_step(), this makes
complete_for_next_step() can not work properly. To fix this, one of
following methods is used for each complete function.- Add a __complete() for each complete(), which accept struct
aead_request *req instead of areq, so avoid using areq after it is
destroyed.- Expand complete_for_next_step().
The fixing method is based on the idea of Herbert Xu.
Signed-off-by: Huang Ying
Signed-off-by: Herbert Xu
12 Nov, 2009
1 commit
-
Now that sys_sysctl is a generic wrapper around /proc/sys .ctl_name
and .strategy members of sysctl tables are dead code. Remove them.Acked-by: Herbert Xu
Signed-off-by: Eric W. Biederman
01 Nov, 2009
1 commit
-
* 'for-linus' of git://neil.brown.name/md:
async_tx: fix asynchronous raid6 recovery for ddf layouts
async_pq: rename scribble page
async_pq: kill a stray dma_map() call and other cleanups
md/raid6: kill a gcc-4.0.1 'uninitialized variable' warning
raid6/async_tx: handle holes in block list in async_syndrome_val
md/async: don't pass a memory pointer as a page pointer.
md: Fix handling of raid5 array which is being reshaped to fewer devices.
md: fix problems with RAID6 calculations for DDF.
md/raid456: downlevel multicore operations to raid_run_ops
md: drivers/md/unroll.pl replaced with awk analog
md: remove clumsy usage of do_sync_mapping_range from bitmap code
md: raid1/raid10: handle allocation errors during array setup.
md/raid5: initialize conf->device_lock earlier
md/raid1/raid10: add a cond_resched
Revert "md: do not progress the resync process if the stripe was blocked"
27 Oct, 2009
3 commits
-
CLMUL-NI accelerated GHASH should be turned off on non-x86_64 machine.
Reported-by: Dave Young
Signed-off-by: Huang Ying
Signed-off-by: Herbert Xu -
crypto/testmgr.c: In function ‘test_cprng’:
crypto/testmgr.c:1204: warning: ‘err’ may be used uninitialized in this functionSigned-off-by: Felipe Contreras
Signed-off-by: Herbert Xu -
size_t nbytes cannot be less than 0 and the test was redundant.
Signed-off-by: Roel Kluin
Acked-by: Neil Horman
Signed-off-by: Herbert Xu
20 Oct, 2009
3 commits
-
The raid6 recovery code currently requires special handling of the
4-disk and 5-disk recovery scenarios for the native layout. Quoting
from commit 0a82a623:In these situations the default N-disk algorithm will present
0-source or 1-source operations to dma devices. To cover for
dma devices where the minimum source count is 2 we implement
4-disk and 5-disk handling in the recovery code.The ddf layout presents disks=6 and disks=7 to the recovery code in
these situations. Instead of looking at the number of disks count the
number of non-zero sources in the list and call the special case code
when the number of non-failed sources is 0 or 1.[neilb@suse.de: replace 'ddf' flag with counting good sources]
Signed-off-by: Dan Williams -
The global scribble page is used as a temporary destination buffer when
disabling the P or Q result is requested. The local scribble buffer
contains memory for performing address conversions. Rename the global
variable to avoid confusion.Signed-off-by: Dan Williams
-
- update the kernel doc for async_syndrome to indicate what NULL in the
source list means
- whitespace fixupsSigned-off-by: Dan Williams
19 Oct, 2009
4 commits
-
Remove special handling of old-style digest algorithms from the procfs
show handler.Signed-off-by: Benjamin Gilbert
Signed-off-by: Herbert Xu -
6941c3a0 disabled compilation of the legacy digest code but didn't
actually remove it. Rectify this. Also, remove the crypto_hash_type
extern declaration from algapi.h now that the struct is gone.Signed-off-by: Benjamin Gilbert
Signed-off-by: Herbert Xu -
Patch to add fips(ansi_cprng) alg, which is ansi_cprng plus a continuous test
Signed-off-by: Neil Horman
Acked-by: Jarod Wilson
Signed-off-by: Herbert Xu -
PCLMULQDQ is used to accelerate the most time-consuming part of GHASH,
carry-less multiplication. More information about PCLMULQDQ can be
found at:http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/
Because PCLMULQDQ changes XMM state, its usage must be enclosed with
kernel_fpu_begin/end, which can be used only in process context, the
acceleration is implemented as crypto_ahash. That is, request in soft
IRQ context will be defered to the cryptd kernel thread.Signed-off-by: Huang Ying
Signed-off-by: Herbert Xu
16 Oct, 2009
2 commits
-
async_syndrome_val check the P and Q blocks used for RAID6
calculations.
With DDF raid6, some of the data blocks might be NULL, so
this needs to be handled in the same way that async_gen_syndrome
handles it.As async_syndrome_val calls async_xor, also enhance async_xor
to detect and skip NULL blocks in the list.Signed-off-by: NeilBrown
-
md/raid6 passes a list of 'struct page *' to the async_tx routines,
which then either DMA map them for offload, or take the page_address
for CPU based calculations.For RAID6 we sometime leave 'blanks' in the list of pages.
For CPU based calcs, we want to treat theses as a page of zeros.
For offloaded calculations, we simply don't pass a page to the
hardware.Currently the 'blanks' are encoded as a pointer to
raid6_empty_zero_page. This is a 4096 byte memory region, not a
'struct page'. This is mostly handled correctly but is rather ugly.So change the code to pass and expect a NULL pointer for the blanks.
When taking page_address of a page, we need to check for a NULL and
in that case use raid6_empty_zero_page.Signed-off-by: NeilBrown
12 Oct, 2009
1 commit
-
After m68k's task_thread_info() doesn't refer to current,
it's possible to remove sched.h from interrupt.h and not break m68k!
Many thanks to Heiko Carstens for allowing this.Signed-off-by: Alexey Dobriyan
03 Oct, 2009
1 commit
-
Just a slight optimization that removes one array lookup.
The processor number is needed for other things as well so the
get/put_cpu cannot be removed.Acked-by: Tejun Heo
Cc: Huang Ying
Signed-off-by: Christoph Lameter
Signed-off-by: Tejun Heo
23 Sep, 2009
1 commit
22 Sep, 2009
1 commit
-
If we are unable to offload async_mult() or async_sum_product(), then
unmap the buffers before falling through to the synchronous path.Signed-off-by: Dan Williams
17 Sep, 2009
1 commit
-
Testing on x86_64 with NDISKS=255 yields:
do_IRQ: modprobe near stack overflow (cur:ffff88007d19c000,sp:ffff88007d19c128)
...and eventually
general protection fault: 0000 [#1]
Moving the scribble buffers off the stack allows the test to complete
successfully.Signed-off-by: Dan Williams
12 Sep, 2009
1 commit
-
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (102 commits)
crypto: sha-s390 - Fix warnings in import function
crypto: vmac - New hash algorithm for intel_txt support
crypto: api - Do not displace newly registered algorithms
crypto: ansi_cprng - Fix module initialization
crypto: xcbc - Fix alignment calculation of xcbc_tfm_ctx
crypto: fips - Depend on ansi_cprng
crypto: blkcipher - Do not use eseqiv on stream ciphers
crypto: ctr - Use chainiv on raw counter mode
Revert crypto: fips - Select CPRNG
crypto: rng - Fix typo
crypto: talitos - add support for 36 bit addressing
crypto: talitos - align locks on cache lines
crypto: talitos - simplify hmac data size calculation
crypto: mv_cesa - Add support for Orion5X crypto engine
crypto: cryptd - Add support to access underlaying shash
crypto: gcm - Use GHASH digest algorithm
crypto: ghash - Add GHASH digest algorithm for GCM
crypto: authenc - Convert to ahash
crypto: api - Fix aligned ctx helper
crypto: hmac - Prehash ipad/opad
...
09 Sep, 2009
6 commits
-
Conflicts:
crypto/async_tx/async_xor.c
drivers/dma/ioat/dma_v2.h
drivers/dma/ioat/pci.c
drivers/md/raid5.c -
Some engines have transfer size and address alignment restrictions. Add
a per-operation alignment property to struct dma_device that the async
routines and dmatest can use to check alignment capabilities.Signed-off-by: Dan Williams
-
Channel switching is problematic for some dmaengine drivers as the
architecture precludes separating the ->prep from ->submit. In these
cases the driver can select ASYNC_TX_DISABLE_CHANNEL_SWITCH to modify
the async_tx allocator to only return channels that support all of the
required asynchronous operations.For example MD_RAID456=y selects support for asynchronous xor, xor
validate, pq, pq validate, and memcpy. When
ASYNC_TX_DISABLE_CHANNEL_SWITCH=y any channel with all these
capabilities is marked DMA_ASYNC_TX allowing async_tx_find_channel() to
quickly locate compatible channels with the guarantee that dependency
chains will remain on one channel. When
ASYNC_TX_DISABLE_CHANNEL_SWITCH=n async_tx_find_channel() may select
channels that lead to operation chains that need to cross channel
boundaries using the async_tx channel switch capability.Signed-off-by: Dan Williams
-
Some engines optimize operation by reading ahead in the descriptor chain
such that descriptor2 may start execution before descriptor1 completes.
If descriptor2 depends on the result from descriptor1 then a fence is
required (on descriptor2) to disable this optimization. The async_tx
api could implicitly identify dependencies via the 'depend_tx'
parameter, but that would constrain cases where the dependency chain
only specifies a completion order rather than a data dependency. So,
provide an ASYNC_TX_FENCE to explicitly identify data dependencies.Signed-off-by: Dan Williams
-
Conflicts:
include/linux/dmaengine.h
06 Sep, 2009
1 commit
-
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: skcipher - Fix skcipher_dequeue_givcrypt NULL test
02 Sep, 2009
1 commit
-
This patch adds VMAC (a fast MAC) support into crypto framework.
Signed-off-by: Shane Wang
Signed-off-by: Joseph Cihula
Signed-off-by: Herbert Xu
