/*
 * Software async multibuffer crypto daemon headers
 *
 *    Author:
 *             Tim Chen <tim.c.chen@linux.intel.com>
 *
 *    Copyright (c) 2014, Intel Corporation.
 */

#ifndef _CRYPTO_MCRYPT_H
#define _CRYPTO_MCRYPT_H

#include <linux/crypto.h>
#include <linux/kernel.h>
#include <crypto/hash.h>

struct mcryptd_ahash {
	struct crypto_ahash base;
};

static inline struct mcryptd_ahash *__mcryptd_ahash_cast(
	struct crypto_ahash *tfm)
{
	return (struct mcryptd_ahash *)tfm;
}

struct mcryptd_cpu_queue {
	struct crypto_queue queue;
	struct work_struct work;
};

struct mcryptd_queue {
	struct mcryptd_cpu_queue __percpu *cpu_queue;
};

struct mcryptd_instance_ctx {
	struct crypto_spawn spawn;
	struct mcryptd_queue *queue;
};

struct mcryptd_hash_ctx {
	struct crypto_ahash *child;
	struct mcryptd_alg_state *alg_state;
};

struct mcryptd_tag {
	/* seq number of request */
	unsigned seq_num;
	/* arrival time of request */
	unsigned long arrival;
	unsigned long expire;
	int	cpu;
};

struct mcryptd_hash_request_ctx {
	struct list_head waiter;
	crypto_completion_t complete;
	struct mcryptd_tag tag;
	struct crypto_hash_walk walk;
	u8 *out;
	int flag;
	struct ahash_request areq;
};

struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,
					u32 type, u32 mask);
struct crypto_ahash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);
struct ahash_request *mcryptd_ahash_desc(struct ahash_request *req);
void mcryptd_free_ahash(struct mcryptd_ahash *tfm);
void mcryptd_flusher(struct work_struct *work);

enum mcryptd_req_type {
	MCRYPTD_NONE,
	MCRYPTD_UPDATE,
	MCRYPTD_FINUP,
	MCRYPTD_DIGEST,
	MCRYPTD_FINAL
};

struct mcryptd_alg_cstate {
	unsigned long next_flush;
	unsigned next_seq_num;
	bool	flusher_engaged;
	struct  delayed_work flush;
	int	cpu;
	struct  mcryptd_alg_state *alg_state;
	void	*mgr;
	spinlock_t work_lock;
	struct list_head work_list;
	struct list_head flush_list;
};

struct mcryptd_alg_state {
	struct mcryptd_alg_cstate __percpu *alg_cstate;
	unsigned long (*flusher)(struct mcryptd_alg_cstate *cstate);
};

/* return delay in jiffies from current time */
static inline unsigned long get_delay(unsigned long t)
{
	long delay;

	delay = (long) t - (long) jiffies;
	if (delay <= 0)
		return 0;
	else
		return (unsigned long) delay;
}

void mcryptd_arm_flusher(struct mcryptd_alg_cstate *cstate, unsigned long delay);

#endif
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=4759d386d55fef452d692bf101167914437e848e'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?id=4759d386d55fef452d692bf101167914437e848e'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/parisc?id=4759d386d55fef452d692bf101167914437e848e'>parisc</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='4759d386d55fef452d692bf101167914437e848e'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-01 12:27:05 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-01 12:27:05 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/parisc?id=4759d386d55fef452d692bf101167914437e848e'>4759d386d55fef452d692bf101167914437e848e</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/parisc?id=4759d386d55fef452d692bf101167914437e848e'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=4759d386d55fef452d692bf101167914437e848e'>e7109c192ec589fcea2a98f9702aa3c0e4009581</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/parisc?id=4759d386d55fef452d692bf101167914437e848e'>sound/parisc</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/parisc?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>238d1d0f79f619d75c2cc741d6770fb0986aef24</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/parisc?id=4759d386d55fef452d692bf101167914437e848e&amp;id2=238d1d0f79f619d75c2cc741d6770fb0986aef24'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/parisc?id=1db175428ee374489448361213e9c3b749d14900'>1db175428ee374489448361213e9c3b749d14900</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/parisc?id=4759d386d55fef452d692bf101167914437e848e&amp;id2=1db175428ee374489448361213e9c3b749d14900'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm</div><div class='commit-msg'>Pull DAX updates from Dan Williams:
 "The completion of Jan's DAX work for 4.10.

  As I mentioned in the libnvdimm-for-4.10 pull request, these are some
  final fixes for the DAX dirty-cacheline-tracking invalidation work
  that was merged through the -mm, ext4, and xfs trees in -rc1. These
  patches were prepared prior to the merge window, but we waited for
  4.10-rc1 to have a stable merge base after all the prerequisites were
  merged.

  Quoting Jan on the overall changes in these patches:

     "So I'd like all these 6 patches to go for rc2. The first three
      patches fix invalidation of exceptional DAX entries (a bug which
      is there for a long time) - without these patches data loss can
      occur on power failure even though user called fsync(2). The other
      three patches change locking of DAX faults so that -&gt;iomap_begin()
      is called in a more relaxed locking context and we are safe to
      start a transaction there for ext4"

  These have received a build success notification from the kbuild
  robot, and pass the latest libnvdimm unit tests. There have not been
  any -next releases since -rc1, so they have not appeared there"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  ext4: Simplify DAX fault path
  dax: Call -&gt;iomap_begin without entry lock during dax fault
  dax: Finish fault completely when loading holes
  dax: Avoid page invalidation races and unnecessary radix tree traversals
  mm: Invalidate DAX radix tree entries only if appropriate
  ext2: Return BH_New buffers for zeroed blocks
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=4759d386d55fef452d692bf101167914437e848e'>Diffstat</a> (limited to 'sound/parisc')</div><table summary='diffstat' class='diffstat'>