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https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
crypto: tcrypt - Use ahash
This patch removes the last user of the obsolete crypto_hash interface, tcrypt, by simply switching it over to ahash. In fact it already has all the code there so it's just a matter of calling the ahash speed test code with the right mask. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
parent
2b8b28fd23
commit
0660511c0b
1 changed files with 15 additions and 224 deletions
239
crypto/tcrypt.c
239
crypto/tcrypt.c
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@ -554,164 +554,6 @@ static void test_cipher_speed(const char *algo, int enc, unsigned int secs,
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crypto_free_blkcipher(tfm);
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}
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static int test_hash_jiffies_digest(struct hash_desc *desc,
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struct scatterlist *sg, int blen,
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char *out, int secs)
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{
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unsigned long start, end;
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int bcount;
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int ret;
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for (start = jiffies, end = start + secs * HZ, bcount = 0;
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time_before(jiffies, end); bcount++) {
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ret = crypto_hash_digest(desc, sg, blen, out);
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if (ret)
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return ret;
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}
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printk("%6u opers/sec, %9lu bytes/sec\n",
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bcount / secs, ((long)bcount * blen) / secs);
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return 0;
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}
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static int test_hash_jiffies(struct hash_desc *desc, struct scatterlist *sg,
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int blen, int plen, char *out, int secs)
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{
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unsigned long start, end;
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int bcount, pcount;
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int ret;
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if (plen == blen)
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return test_hash_jiffies_digest(desc, sg, blen, out, secs);
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for (start = jiffies, end = start + secs * HZ, bcount = 0;
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time_before(jiffies, end); bcount++) {
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ret = crypto_hash_init(desc);
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if (ret)
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return ret;
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for (pcount = 0; pcount < blen; pcount += plen) {
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ret = crypto_hash_update(desc, sg, plen);
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if (ret)
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return ret;
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}
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/* we assume there is enough space in 'out' for the result */
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ret = crypto_hash_final(desc, out);
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if (ret)
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return ret;
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}
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printk("%6u opers/sec, %9lu bytes/sec\n",
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bcount / secs, ((long)bcount * blen) / secs);
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return 0;
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}
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static int test_hash_cycles_digest(struct hash_desc *desc,
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struct scatterlist *sg, int blen, char *out)
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{
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unsigned long cycles = 0;
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int i;
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int ret;
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local_irq_disable();
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/* Warm-up run. */
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for (i = 0; i < 4; i++) {
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ret = crypto_hash_digest(desc, sg, blen, out);
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if (ret)
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goto out;
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}
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/* The real thing. */
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for (i = 0; i < 8; i++) {
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cycles_t start, end;
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start = get_cycles();
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ret = crypto_hash_digest(desc, sg, blen, out);
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if (ret)
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goto out;
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end = get_cycles();
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cycles += end - start;
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}
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out:
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local_irq_enable();
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if (ret)
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return ret;
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printk("%6lu cycles/operation, %4lu cycles/byte\n",
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cycles / 8, cycles / (8 * blen));
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return 0;
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}
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static int test_hash_cycles(struct hash_desc *desc, struct scatterlist *sg,
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int blen, int plen, char *out)
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{
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unsigned long cycles = 0;
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int i, pcount;
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int ret;
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if (plen == blen)
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return test_hash_cycles_digest(desc, sg, blen, out);
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local_irq_disable();
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/* Warm-up run. */
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for (i = 0; i < 4; i++) {
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ret = crypto_hash_init(desc);
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if (ret)
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goto out;
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for (pcount = 0; pcount < blen; pcount += plen) {
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ret = crypto_hash_update(desc, sg, plen);
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if (ret)
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goto out;
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}
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ret = crypto_hash_final(desc, out);
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if (ret)
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goto out;
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}
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/* The real thing. */
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for (i = 0; i < 8; i++) {
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cycles_t start, end;
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start = get_cycles();
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ret = crypto_hash_init(desc);
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if (ret)
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goto out;
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for (pcount = 0; pcount < blen; pcount += plen) {
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ret = crypto_hash_update(desc, sg, plen);
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if (ret)
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goto out;
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}
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ret = crypto_hash_final(desc, out);
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if (ret)
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goto out;
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end = get_cycles();
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cycles += end - start;
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}
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out:
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local_irq_enable();
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if (ret)
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return ret;
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printk("%6lu cycles/operation, %4lu cycles/byte\n",
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cycles / 8, cycles / (8 * blen));
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return 0;
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}
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static void test_hash_sg_init(struct scatterlist *sg)
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{
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int i;
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@ -723,69 +565,6 @@ static void test_hash_sg_init(struct scatterlist *sg)
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}
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}
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static void test_hash_speed(const char *algo, unsigned int secs,
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struct hash_speed *speed)
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{
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struct scatterlist sg[TVMEMSIZE];
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struct crypto_hash *tfm;
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struct hash_desc desc;
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static char output[1024];
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int i;
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int ret;
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tfm = crypto_alloc_hash(algo, 0, CRYPTO_ALG_ASYNC);
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if (IS_ERR(tfm)) {
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printk(KERN_ERR "failed to load transform for %s: %ld\n", algo,
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PTR_ERR(tfm));
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return;
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}
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printk(KERN_INFO "\ntesting speed of %s (%s)\n", algo,
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get_driver_name(crypto_hash, tfm));
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desc.tfm = tfm;
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desc.flags = 0;
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if (crypto_hash_digestsize(tfm) > sizeof(output)) {
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printk(KERN_ERR "digestsize(%u) > outputbuffer(%zu)\n",
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crypto_hash_digestsize(tfm), sizeof(output));
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goto out;
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}
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test_hash_sg_init(sg);
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for (i = 0; speed[i].blen != 0; i++) {
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if (speed[i].blen > TVMEMSIZE * PAGE_SIZE) {
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printk(KERN_ERR
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"template (%u) too big for tvmem (%lu)\n",
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speed[i].blen, TVMEMSIZE * PAGE_SIZE);
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goto out;
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}
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if (speed[i].klen)
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crypto_hash_setkey(tfm, tvmem[0], speed[i].klen);
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printk(KERN_INFO "test%3u "
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"(%5u byte blocks,%5u bytes per update,%4u updates): ",
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i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen);
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if (secs)
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ret = test_hash_jiffies(&desc, sg, speed[i].blen,
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speed[i].plen, output, secs);
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else
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ret = test_hash_cycles(&desc, sg, speed[i].blen,
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speed[i].plen, output);
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if (ret) {
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printk(KERN_ERR "hashing failed ret=%d\n", ret);
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break;
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}
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}
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out:
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crypto_free_hash(tfm);
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}
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static inline int do_one_ahash_op(struct ahash_request *req, int ret)
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{
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if (ret == -EINPROGRESS || ret == -EBUSY) {
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@ -945,8 +724,8 @@ static int test_ahash_cycles(struct ahash_request *req, int blen,
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return 0;
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}
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static void test_ahash_speed(const char *algo, unsigned int secs,
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struct hash_speed *speed)
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static void test_ahash_speed_common(const char *algo, unsigned int secs,
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struct hash_speed *speed, unsigned mask)
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{
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struct scatterlist sg[TVMEMSIZE];
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struct tcrypt_result tresult;
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@ -955,7 +734,7 @@ static void test_ahash_speed(const char *algo, unsigned int secs,
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char *output;
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int i, ret;
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tfm = crypto_alloc_ahash(algo, 0, 0);
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tfm = crypto_alloc_ahash(algo, 0, mask);
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if (IS_ERR(tfm)) {
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pr_err("failed to load transform for %s: %ld\n",
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algo, PTR_ERR(tfm));
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@ -1021,6 +800,18 @@ static void test_ahash_speed(const char *algo, unsigned int secs,
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crypto_free_ahash(tfm);
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}
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static void test_ahash_speed(const char *algo, unsigned int secs,
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struct hash_speed *speed)
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{
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return test_ahash_speed_common(algo, secs, speed, 0);
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}
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static void test_hash_speed(const char *algo, unsigned int secs,
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struct hash_speed *speed)
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{
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return test_ahash_speed_common(algo, secs, speed, CRYPTO_ALG_ASYNC);
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}
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static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
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{
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if (ret == -EINPROGRESS || ret == -EBUSY) {
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