#ifndef _CRYPTO_LRW_H
#define _CRYPTO_LRW_H

#include <crypto/b128ops.h>

struct scatterlist;
struct gf128mul_64k;
struct blkcipher_desc;

#define LRW_BLOCK_SIZE 16

struct lrw_table_ctx {
	/* optimizes multiplying a random (non incrementing, as at the
	 * start of a new sector) value with key2, we could also have
	 * used 4k optimization tables or no optimization at all. In the
	 * latter case we would have to store key2 here */
	struct gf128mul_64k *table;
	/* stores:
	 *  key2*{ 0,0,...0,0,0,0,1 }, key2*{ 0,0,...0,0,0,1,1 },
	 *  key2*{ 0,0,...0,0,1,1,1 }, key2*{ 0,0,...0,1,1,1,1 }
	 *  key2*{ 0,0,...1,1,1,1,1 }, etc
	 * needed for optimized multiplication of incrementing values
	 * with key2 */
	be128 mulinc[128];
};

int lrw_init_table(struct lrw_table_ctx *ctx, const u8 *tweak);
void lrw_free_table(struct lrw_table_ctx *ctx);

struct lrw_crypt_req {
	be128 *tbuf;
	unsigned int tbuflen;

	struct lrw_table_ctx *table_ctx;
	void *crypt_ctx;
	void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes);
};

int lrw_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
	      struct scatterlist *src, unsigned int nbytes,
	      struct lrw_crypt_req *req);

#endif  /* _CRYPTO_LRW_H */
elected='selected'>master</option>
<option value='nds-private-remove'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/rdma/ib_pma.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/rdma/ib_pma.h?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include/rdma/ib_pma.h?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6'>commit</a><a class='active' href='/cgit.cgi/linux/net-next.git/diff/include/rdma/ib_pma.h?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6&amp;id2=be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/rdma/ib_pma.h'>
<input type='hidden' name='id' value='6989606a7224a2d5a925df22a49e4f7a0bfed0d6'/><input type='hidden' name='id2' value='be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/diff/?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6&amp;id2=be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6&amp;id2=be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'>include</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include/rdma?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6&amp;id2=be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'>rdma</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include/rdma/ib_pma.h?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6&amp;id2=be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'>ib_pma.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='6989606a7224a2d5a925df22a49e4f7a0bfed0d6'/><input type='hidden' name='id2' value='be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'/><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><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=6989606a7224a2d5a925df22a49e4f7a0bfed0d6&amp;id2=be29d20f3f5db1f0b4e49a4f6eeedf840e2bf9b1'>Diffstat</a> (limited to 'include/rdma/ib_pma.h')</div><table summary='diffstat' class='diffstat'>