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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 14:46:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 14:46:51 -0700
commit2a8ba8f032160552a3beffab8aae9019ff477504 (patch)
treeb50f70a3c8f7c2e179e1587d33ea3542d68525f9 /include
parentec2a7587e0a91d5c1afe23a0a73edfce06c5e4e0 (diff)
parente954bc91bdd4bb08b8325478c5004b24a23a3522 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (46 commits) random: simplify fips mode crypto: authenc - Fix cryptlen calculation crypto: talitos - add support for sha224 crypto: talitos - add hash algorithms crypto: talitos - second prepare step for adding ahash algorithms crypto: talitos - prepare for adding ahash algorithms crypto: n2 - Add Niagara2 crypto driver crypto: skcipher - Add ablkcipher_walk interfaces crypto: testmgr - Add testing for async hashing and update/final crypto: tcrypt - Add speed tests for async hashing crypto: scatterwalk - Fix scatterwalk_done() test crypto: hifn_795x - Rename ablkcipher_walk to hifn_cipher_walk padata: Use get_online_cpus/put_online_cpus in padata_free padata: Add some code comments padata: Flush the padata queues actively padata: Use a timer to handle remaining objects in the reorder queues crypto: shash - Remove usage of CRYPTO_MINALIGN crypto: mv_cesa - Use resource_size crypto: omap - OMAP macros corrected padata: Use get_online_cpus/put_online_cpus ... Fix up conflicts in arch/arm/mach-omap2/devices.c
Diffstat (limited to 'include')
-rw-r--r--include/crypto/algapi.h40
-rw-r--r--include/linux/padata.h55
2 files changed, 95 insertions, 0 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index fc0d575c71e0..59c3e5bd2c06 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -103,6 +103,23 @@ struct blkcipher_walk {
unsigned int blocksize;
};
+struct ablkcipher_walk {
+ struct {
+ struct page *page;
+ unsigned int offset;
+ } src, dst;
+
+ struct scatter_walk in;
+ unsigned int nbytes;
+ struct scatter_walk out;
+ unsigned int total;
+ struct list_head buffers;
+ u8 *iv_buffer;
+ u8 *iv;
+ int flags;
+ unsigned int blocksize;
+};
+
extern const struct crypto_type crypto_ablkcipher_type;
extern const struct crypto_type crypto_aead_type;
extern const struct crypto_type crypto_blkcipher_type;
@@ -173,6 +190,12 @@ int blkcipher_walk_virt_block(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
unsigned int blocksize);
+int ablkcipher_walk_done(struct ablkcipher_request *req,
+ struct ablkcipher_walk *walk, int err);
+int ablkcipher_walk_phys(struct ablkcipher_request *req,
+ struct ablkcipher_walk *walk);
+void __ablkcipher_walk_complete(struct ablkcipher_walk *walk);
+
static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
{
return PTR_ALIGN(crypto_tfm_ctx(tfm),
@@ -283,6 +306,23 @@ static inline void blkcipher_walk_init(struct blkcipher_walk *walk,
walk->total = nbytes;
}
+static inline void ablkcipher_walk_init(struct ablkcipher_walk *walk,
+ struct scatterlist *dst,
+ struct scatterlist *src,
+ unsigned int nbytes)
+{
+ walk->in.sg = src;
+ walk->out.sg = dst;
+ walk->total = nbytes;
+ INIT_LIST_HEAD(&walk->buffers);
+}
+
+static inline void ablkcipher_walk_complete(struct ablkcipher_walk *walk)
+{
+ if (unlikely(!list_empty(&walk->buffers)))
+ __ablkcipher_walk_complete(walk);
+}
+
static inline struct crypto_async_request *crypto_get_backlog(
struct crypto_queue *queue)
{
diff --git a/include/linux/padata.h b/include/linux/padata.h
index 51611da9c498..8d8406246eef 100644
--- a/include/linux/padata.h
+++ b/include/linux/padata.h
@@ -24,7 +24,19 @@
#include <linux/workqueue.h>
#include <linux/spinlock.h>
#include <linux/list.h>
+#include <linux/timer.h>
+/**
+ * struct padata_priv - Embedded to the users data structure.
+ *
+ * @list: List entry, to attach to the padata lists.
+ * @pd: Pointer to the internal control structure.
+ * @cb_cpu: Callback cpu for serializatioon.
+ * @seq_nr: Sequence number of the parallelized data object.
+ * @info: Used to pass information from the parallel to the serial function.
+ * @parallel: Parallel execution function.
+ * @serial: Serial complete function.
+ */
struct padata_priv {
struct list_head list;
struct parallel_data *pd;
@@ -35,11 +47,29 @@ struct padata_priv {
void (*serial)(struct padata_priv *padata);
};
+/**
+ * struct padata_list
+ *
+ * @list: List head.
+ * @lock: List lock.
+ */
struct padata_list {
struct list_head list;
spinlock_t lock;
};
+/**
+ * struct padata_queue - The percpu padata queues.
+ *
+ * @parallel: List to wait for parallelization.
+ * @reorder: List to wait for reordering after parallel processing.
+ * @serial: List to wait for serialization after reordering.
+ * @pwork: work struct for parallelization.
+ * @swork: work struct for serialization.
+ * @pd: Backpointer to the internal control structure.
+ * @num_obj: Number of objects that are processed by this cpu.
+ * @cpu_index: Index of the cpu.
+ */
struct padata_queue {
struct padata_list parallel;
struct padata_list reorder;
@@ -51,6 +81,20 @@ struct padata_queue {
int cpu_index;
};
+/**
+ * struct parallel_data - Internal control structure, covers everything
+ * that depends on the cpumask in use.
+ *
+ * @pinst: padata instance.
+ * @queue: percpu padata queues.
+ * @seq_nr: The sequence number that will be attached to the next object.
+ * @reorder_objects: Number of objects waiting in the reorder queues.
+ * @refcnt: Number of objects holding a reference on this parallel_data.
+ * @max_seq_nr: Maximal used sequence number.
+ * @cpumask: cpumask in use.
+ * @lock: Reorder lock.
+ * @timer: Reorder timer.
+ */
struct parallel_data {
struct padata_instance *pinst;
struct padata_queue *queue;
@@ -60,8 +104,19 @@ struct parallel_data {
unsigned int max_seq_nr;
cpumask_var_t cpumask;
spinlock_t lock;
+ struct timer_list timer;
};
+/**
+ * struct padata_instance - The overall control structure.
+ *
+ * @cpu_notifier: cpu hotplug notifier.
+ * @wq: The workqueue in use.
+ * @pd: The internal control structure.
+ * @cpumask: User supplied cpumask.
+ * @lock: padata instance lock.
+ * @flags: padata flags.
+ */
struct padata_instance {
struct notifier_block cpu_notifier;
struct workqueue_struct *wq;