/* * Quick & dirty crypto testing module. * * This will only exist until we have a better testing mechanism * (e.g. a char device). * * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> * Copyright (c) 2002 Jean-Francois Dive <jef@linuxbe.org> * Copyright (c) 2007 Nokia Siemens Networks * * Updated RFC4106 AES-GCM testing. * Authors: Aidan O'Mahony (aidan.o.mahony@intel.com) * Adrian Hoban <adrian.hoban@intel.com> * Gabriele Paoloni <gabriele.paoloni@intel.com> * Tadeusz Struk (tadeusz.struk@intel.com) * Copyright (c) 2010, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <crypto/aead.h>#include <crypto/hash.h>#include <crypto/skcipher.h>#include <linux/err.h>#include <linux/fips.h>#include <linux/init.h>#include <linux/gfp.h>#include <linux/module.h>#include <linux/scatterlist.h>#include <linux/string.h>#include <linux/moduleparam.h>#include <linux/jiffies.h>#include <linux/timex.h>#include <linux/interrupt.h>#include "tcrypt.h" /* * Need slab memory for testing (size in number of pages). */#define TVMEMSIZE 4 /** Used by test_cipher_speed()*/#define ENCRYPT 1#define DECRYPT 0 #define MAX_DIGEST_SIZE 64 /* * return a string with the driver name */#define get_driver_name(tfm_type, tfm) crypto_tfm_alg_driver_name(tfm_type ## _tfm(tfm)) /* * Used by test_cipher_speed() */static unsigned int sec; static char *alg = NULL;static u32 type;static u32 mask;static int mode;static char *tvmem[TVMEMSIZE]; static char *check[] = { "des", "md5", "des3_ede", "rot13", "sha1", "sha224", "sha256", "blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes", "cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea", "khazad", "wp512", "wp384", "wp256", "tnepres", "xeta", "fcrypt", "camellia", "seed", "salsa20", "rmd128", "rmd160", "rmd256", "rmd320", "lzo", "cts", "zlib", "sha3-224", "sha3-256", "sha3-384", "sha3-512", NULL}; struct tcrypt_result { struct completion completion; int err;}; static void tcrypt_complete(struct crypto_async_request *req, int err){ struct tcrypt_result *res = req->data; if (err == -EINPROGRESS) return; res->err = err; complete(&res->completion);} static inline int do_one_aead_op(struct aead_request *req, int ret){ if (ret == -EINPROGRESS || ret == -EBUSY) { struct tcrypt_result *tr = req->base.data; ret = wait_for_completion_interruptible(&tr->completion); if (!ret) ret = tr->err; reinit_completion(&tr->completion); } return ret;} static int test_aead_jiffies(struct aead_request *req, int enc, int blen, int secs){ unsigned long start, end; int bcount; int ret; for (start = jiffies, end = start + secs * HZ, bcount = 0; time_before(jiffies, end); bcount++) { if (enc) ret = do_one_aead_op(req, crypto_aead_encrypt(req)); else ret = do_one_aead_op(req, crypto_aead_decrypt(req)); if (ret) return ret; } printk("%d operations in %d seconds (%ld bytes)\n", bcount, secs, (long)bcount * blen); return 0;} static int test_aead_cycles(struct aead_request *req, int enc, int blen){ unsigned long cycles = 0; int ret = 0; int i; /* Warm-up run. */ for (i = 0; i < 4; i++) { if (enc) ret = do_one_aead_op(req, crypto_aead_encrypt(req)); else ret = do_one_aead_op(req, crypto_aead_decrypt(req)); if (ret) goto out; } /* The real thing. */ for (i = 0; i < 8; i++) { cycles_t start, end; start = get_cycles(); if (enc) ret = do_one_aead_op(req, crypto_aead_encrypt(req)); else ret = do_one_aead_op(req, crypto_aead_decrypt(req)); end = get_cycles(); if (ret) goto out; cycles += end - start; } out: if (ret == 0) printk("1 operation in %lu cycles (%d bytes)\n", (cycles + 4) / 8, blen); return ret;} static u32 block_sizes[] = { 16, 64, 256, 1024, 8192, 0 };static u32 aead_sizes[] = { 16, 64, 256, 512, 1024, 2048, 4096, 8192, 0 }; #define XBUFSIZE 8#define MAX_IVLEN 32 static int testmgr_alloc_buf(char *buf[XBUFSIZE]){ int i; for (i = 0; i < XBUFSIZE; i++) { buf[i] = (void *)__get_free_page(GFP_KERNEL); if (!buf[i]) goto err_free_buf; } return 0; err_free_buf: while (i-- > 0) free_page((unsigned long)buf[i]); return -ENOMEM;} static void testmgr_free_buf(char *buf[XBUFSIZE]){ int i; for (i = 0; i < XBUFSIZE; i++) free_page((unsigned long)buf[i]);} static void sg_init_aead(struct scatterlist *sg, char *xbuf[XBUFSIZE], unsigned int buflen){ int np = (buflen + PAGE_SIZE - 1)/PAGE_SIZE; int k, rem; if (np > XBUFSIZE) { rem = PAGE_SIZE; np = XBUFSIZE; } else { rem = buflen % PAGE_SIZE; } sg_init_table(sg, np + 1); np--; for (k = 0; k < np; k++) sg_set_buf(&sg[k + 1], xbuf[k], PAGE_SIZE); sg_set_buf(&sg[k + 1], xbuf[k], rem);} static void test_aead_speed(const char *algo, int enc, unsigned int secs, struct aead_speed_template *template, unsigned int tcount, u8 authsize, unsigned int aad_size, u8 *keysize){ unsigned int i, j; struct crypto_aead *tfm; int ret = -ENOMEM; const char *key; struct aead_request *req; struct scatterlist *sg; struct scatterlist *sgout; const char *e; void *assoc; char *iv; char *xbuf[XBUFSIZE]; char *xoutbuf[XBUFSIZE]; char *axbuf[XBUFSIZE]; unsigned int *b_size; unsigned int iv_len; struct tcrypt_result result; iv = kzalloc(MAX_IVLEN, GFP_KERNEL); if (!iv) return; if (aad_size >= PAGE_SIZE) { pr_err("associate data length (%u) too big\n", aad_size); goto out_noxbuf; } if (enc == ENCRYPT) e = "encryption"; else e = "decryption"; if (testmgr_alloc_buf(xbuf)) goto out_noxbuf; if (testmgr_alloc_buf(axbuf)) goto out_noaxbuf; if (testmgr_alloc_buf(xoutbuf)) goto out_nooutbuf; sg = kmalloc(sizeof(*sg) * 9 * 2, GFP_KERNEL); if (!sg) goto out_nosg; sgout = &sg[9]; tfm = crypto_alloc_aead(algo, 0, 0); if (IS_ERR(tfm)) { pr_err("alg: aead: Failed to load transform for %s: %ld\n", algo, PTR_ERR(tfm)); goto out_notfm; } init_completion(&result.completion); printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo, get_driver_name(crypto_aead, tfm), e); req = aead_request_alloc(tfm, GFP_KERNEL); if (!req) { pr_err("alg: aead: Failed to allocate request for %s\n", algo); goto out_noreq; } aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, tcrypt_complete, &result); i = 0; do { b_size = aead_sizes; do { assoc = axbuf[0]; memset(assoc, 0xff, aad_size); if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) { pr_err("template (%u) too big for tvmem (%lu)\n", *keysize + *b_size, TVMEMSIZE * PAGE_SIZE); goto out; } key = tvmem[0]; for (j = 0; j < tcount; j++) { if (template[j].klen == *keysize) { key = template[j].key; break; } } ret = crypto_aead_setkey(tfm, key, *keysize); ret = crypto_aead_setauthsize(tfm, authsize); iv_len = crypto_aead_ivsize(tfm); if (iv_len) memset(iv, 0xff, iv_len); crypto_aead_clear_flags(tfm, ~0); printk(KERN_INFO "test %u (%d bit key, %d byte blocks): ", i, *keysize * 8, *b_size); memset(tvmem[0], 0xff, PAGE_SIZE); if (ret) { pr_err("setkey() failed flags=%x\n", crypto_aead_get_flags(tfm)); goto out; } sg_init_aead(sg, xbuf, *b_size + (enc ? authsize : 0)); sg_init_aead(sgout, xoutbuf, *b_size + (enc ? authsize : 0)); sg_set_buf(&sg[0], assoc, aad_size); sg_set_buf(&sgout[0], assoc, aad_size); aead_request_set_crypt(req, sg, sgout, *b_size, iv); aead_request_set_ad(req, aad_size); if (secs) ret = test_aead_jiffies(req, enc, *b_size, secs); else ret = test_aead_cycles(req, enc, *b_size); if (ret) { pr_err("%s() failed return code=%d\n", e, ret); break; } b_size++; i++; } while (*b_size); keysize++; } while (*keysize); out: aead_request_free(req);out_noreq: crypto_free_aead(tfm);out_notfm: kfree(sg);out_nosg: testmgr_free_buf(xoutbuf);out_nooutbuf: testmgr_free_buf(axbuf);out_noaxbuf: testmgr_free_buf(xbuf);out_noxbuf: kfree(iv); return;} static void test_hash_sg_init(struct scatterlist *sg){ int i; sg_init_table(sg, TVMEMSIZE); for (i = 0; i < TVMEMSIZE; i++) { sg_set_buf(sg + i, tvmem[i], PAGE_SIZE); memset(tvmem[i], 0xff, PAGE_SIZE); }} static inline int do_one_ahash_op(struct ahash_request *req, int ret){ if (ret == -EINPROGRESS || ret == -EBUSY) { struct tcrypt_result *tr = req->base.data; wait_for_completion(&tr->completion); reinit_completion(&tr->completion); ret = tr->err; } return ret;} struct test_mb_ahash_data { struct scatterlist sg[TVMEMSIZE]; char result[64]; struct ahash_request *req; struct tcrypt_result tresult; char *xbuf[XBUFSIZE];}; static void test_mb_ahash_speed(const char *algo, unsigned int sec, struct hash_speed *speed){ struct test_mb_ahash_data *data; struct crypto_ahash *tfm; unsigned long start, end; unsigned long cycles; unsigned int i, j, k; int ret; data = kzalloc(sizeof(*data) * 8, GFP_KERNEL); if (!data) return; tfm = crypto_alloc_ahash(algo, 0, 0); if (IS_ERR(tfm)) { pr_err("failed to load transform for %s: %ld\n", algo, PTR_ERR(tfm)); goto free_data; } for (i = 0; i < 8; ++i) { if (testmgr_alloc_buf(data[i].xbuf)) goto out; init_completion(&data[i].tresult.completion); data[i].req = ahash_request_alloc(tfm, GFP_KERNEL); if (!data[i].req) { pr_err("alg: hash: Failed to allocate request for %s\n", algo); goto out; } ahash_request_set_callback(data[i].req, 0, tcrypt_complete, &data[i].tresult); test_hash_sg_init(data[i].sg); } pr_info("\ntesting speed of multibuffer %s (%s)\n", algo, get_driver_name(crypto_ahash, tfm)); for (i = 0; speed[i].blen != 0; i++) { /* For some reason this only tests digests. */ if (speed[i].blen != speed[i].plen) continue; if (speed[i].blen > TVMEMSIZE * PAGE_SIZE) { pr_err("template (%u) too big for tvmem (%lu)\n", speed[i].blen, TVMEMSIZE * PAGE_SIZE); goto out; } if (speed[i].klen) crypto_ahash_setkey(tfm, tvmem[0], speed[i].klen); for (k = 0; k < 8; k++) ahash_request_set_crypt(data[k].req, data[k].sg, data[k].result, speed[i].blen); pr_info("test%3u " "(%5u byte blocks,%5u bytes per update,%4u updates): ", i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen); start = get_cycles(); for (k = 0; k < 8; k++) { ret = crypto_ahash_digest(data[k].req); if (ret == -EINPROGRESS) { ret = 0; continue; } if (ret) break; complete(&data[k].tresult.completion); data[k].tresult.err = 0; } for (j = 0; j < k; j++) { struct tcrypt_result *tr = &data[j].tresult;Lines 1–500 of 2102. 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/* * Quick & dirty crypto testing module. * * This will only exist until we have a better testing mechanism * (e.g. a char device). * * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> * Copyright (c) 2002 Jean-Francois Dive <jef@linuxbe.org> * Copyright (c) 2007 Nokia Siemens Networks * * Updated RFC4106 AES-GCM testing. * Authors: Aidan O'Mahony (aidan.o.mahony@intel.com) * Adrian Hoban <adrian.hoban@intel.com> * Gabriele Paoloni <gabriele.paoloni@intel.com> * Tadeusz Struk (tadeusz.struk@intel.com) * Copyright (c) 2010, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <crypto/aead.h> #include <crypto/hash.h> #include <crypto/skcipher.h> #include <linux/err.h> #include <linux/fips.h> #include <linux/init.h> #include <linux/gfp.h> #include <linux/module.h> #include <linux/scatterlist.h> #include <linux/string.h> #include <linux/moduleparam.h> #include <linux/jiffies.h> #include <linux/timex.h> #include <linux/interrupt.h> #include "tcrypt.h" /* * Need slab memory for testing (size in number of pages). */ #define TVMEMSIZE 4 /* * Used by test_cipher_speed() */ #define ENCRYPT 1 #define DECRYPT 0 #define MAX_DIGEST_SIZE 64 /* * return a string with the driver name */ #define get_driver_name(tfm_type, tfm) crypto_tfm_alg_driver_name(tfm_type ## _tfm(tfm)) /* * Used by test_cipher_speed() */ static unsigned int sec; static char *alg = NULL; static u32 type; static u32 mask; static int mode; static char *tvmem[TVMEMSIZE]; static char *check[] = { "des", "md5", "des3_ede", "rot13", "sha1", "sha224", "sha256", "blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes", "cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea", "khazad", "wp512", "wp384", "wp256", "tnepres", "xeta", "fcrypt", "camellia", "seed", "salsa20", "rmd128", "rmd160", "rmd256", "rmd320", "lzo", "cts", "zlib", "sha3-224", "sha3-256", "sha3-384", "sha3-512", NULL }; struct tcrypt_result { struct completion completion; int err; }; static void tcrypt_complete(struct crypto_async_request *req, int err) { struct tcrypt_result *res = req->data; if (err == -EINPROGRESS) return; res->err = err; complete(&res->completion); } static inline int do_one_aead_op(struct aead_request *req, int ret) { if (ret == -EINPROGRESS || ret == -EBUSY) { struct tcrypt_result *tr = req->base.data; ret = wait_for_completion_interruptible(&tr->completion); if (!ret) ret = tr->err; reinit_completion(&tr->completion); } return ret; } static int test_aead_jiffies(struct aead_request *req, int enc, int blen, int secs) { unsigned long start, end; int bcount; int ret; for (start = jiffies, end = start + secs * HZ, bcount = 0; time_before(jiffies, end); bcount++) { if (enc) ret = do_one_aead_op(req, crypto_aead_encrypt(req)); else ret = do_one_aead_op(req, crypto_aead_decrypt(req)); if (ret) return ret; } printk("%d operations in %d seconds (%ld bytes)\n", bcount, secs, (long)bcount * blen); return 0; } static int test_aead_cycles(struct aead_request *req, int enc, int blen) { unsigned long cycles = 0; int ret = 0; int i; /* Warm-up run. */ for (i = 0; i < 4; i++) { if (enc) ret = do_one_aead_op(req, crypto_aead_encrypt(req)); else ret = do_one_aead_op(req, crypto_aead_decrypt(req)); if (ret) goto out; } /* The real thing. */ for (i = 0; i < 8; i++) { cycles_t start, end; start = get_cycles(); if (enc) ret = do_one_aead_op(req, crypto_aead_encrypt(req)); else ret = do_one_aead_op(req, crypto_aead_decrypt(req)); end = get_cycles(); if (ret) goto out; cycles += end - start; } out: if (ret == 0) printk("1 operation in %lu cycles (%d bytes)\n", (cycles + 4) / 8, blen); return ret; } static u32 block_sizes[] = { 16, 64, 256, 1024, 8192, 0 }; static u32 aead_sizes[] = { 16, 64, 256, 512, 1024, 2048, 4096, 8192, 0 }; #define XBUFSIZE 8 #define MAX_IVLEN 32 static int testmgr_alloc_buf(char *buf[XBUFSIZE]) { int i; for (i = 0; i < XBUFSIZE; i++) { buf[i] = (void *)__get_free_page(GFP_KERNEL); if (!buf[i]) goto err_free_buf; } return 0; err_free_buf: while (i-- > 0) free_page((unsigned long)buf[i]); return -ENOMEM; } static void testmgr_free_buf(char *buf[XBUFSIZE]) { int i; for (i = 0; i < XBUFSIZE; i++) free_page((unsigned long)buf[i]); } static void sg_init_aead(struct scatterlist *sg, char *xbuf[XBUFSIZE], unsigned int buflen) { int np = (buflen + PAGE_SIZE - 1)/PAGE_SIZE; int k, rem; if (np > XBUFSIZE) { rem = PAGE_SIZE; np = XBUFSIZE; } else { rem = buflen % PAGE_SIZE; } sg_init_table(sg, np + 1); np--; for (k = 0; k < np; k++) sg_set_buf(&sg[k + 1], xbuf[k], PAGE_SIZE); sg_set_buf(&sg[k + 1], xbuf[k], rem); } static void test_aead_speed(const char *algo, int enc, unsigned int secs, struct aead_speed_template *template, unsigned int tcount, u8 authsize, unsigned int aad_size, u8 *keysize) { unsigned int i, j; struct crypto_aead *tfm; int ret = -ENOMEM; const char *key; struct aead_request *req; struct scatterlist *sg; struct scatterlist *sgout; const char *e; void *assoc; char *iv; char *xbuf[XBUFSIZE]; char *xoutbuf[XBUFSIZE]; char *axbuf[XBUFSIZE]; unsigned int *b_size; unsigned int iv_len; struct tcrypt_result result; iv = kzalloc(MAX_IVLEN, GFP_KERNEL); if (!iv) return; if (aad_size >= PAGE_SIZE) { pr_err("associate data length (%u) too big\n", aad_size); goto out_noxbuf; } if (enc == ENCRYPT) e = "encryption"; else e = "decryption"; if (testmgr_alloc_buf(xbuf)) goto out_noxbuf; if (testmgr_alloc_buf(axbuf)) goto out_noaxbuf; if (testmgr_alloc_buf(xoutbuf)) goto out_nooutbuf; sg = kmalloc(sizeof(*sg) * 9 * 2, GFP_KERNEL); if (!sg) goto out_nosg; sgout = &sg[9]; tfm = crypto_alloc_aead(algo, 0, 0); if (IS_ERR(tfm)) { pr_err("alg: aead: Failed to load transform for %s: %ld\n", algo, PTR_ERR(tfm)); goto out_notfm; } init_completion(&result.completion); printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo, get_driver_name(crypto_aead, tfm), e); req = aead_request_alloc(tfm, GFP_KERNEL); if (!req) { pr_err("alg: aead: Failed to allocate request for %s\n", algo); goto out_noreq; } aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, tcrypt_complete, &result); i = 0; do { b_size = aead_sizes; do { assoc = axbuf[0]; memset(assoc, 0xff, aad_size); if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) { pr_err("template (%u) too big for tvmem (%lu)\n", *keysize + *b_size, TVMEMSIZE * PAGE_SIZE); goto out; } key = tvmem[0]; for (j = 0; j < tcount; j++) { if (template[j].klen == *keysize) { key = template[j].key; break; } } ret = crypto_aead_setkey(tfm, key, *keysize); ret = crypto_aead_setauthsize(tfm, authsize); iv_len = crypto_aead_ivsize(tfm); if (iv_len) memset(iv, 0xff, iv_len); crypto_aead_clear_flags(tfm, ~0); printk(KERN_INFO "test %u (%d bit key, %d byte blocks): ", i, *keysize * 8, *b_size); memset(tvmem[0], 0xff, PAGE_SIZE); if (ret) { pr_err("setkey() failed flags=%x\n", crypto_aead_get_flags(tfm)); goto out; } sg_init_aead(sg, xbuf, *b_size + (enc ? authsize : 0)); sg_init_aead(sgout, xoutbuf, *b_size + (enc ? authsize : 0)); sg_set_buf(&sg[0], assoc, aad_size); sg_set_buf(&sgout[0], assoc, aad_size); aead_request_set_crypt(req, sg, sgout, *b_size, iv); aead_request_set_ad(req, aad_size); if (secs) ret = test_aead_jiffies(req, enc, *b_size, secs); else ret = test_aead_cycles(req, enc, *b_size); if (ret) { pr_err("%s() failed return code=%d\n", e, ret); break; } b_size++; i++; } while (*b_size); keysize++; } while (*keysize); out: aead_request_free(req); out_noreq: crypto_free_aead(tfm); out_notfm: kfree(sg); out_nosg: testmgr_free_buf(xoutbuf); out_nooutbuf: testmgr_free_buf(axbuf); out_noaxbuf: testmgr_free_buf(xbuf); out_noxbuf: kfree(iv); return; } static void test_hash_sg_init(struct scatterlist *sg) { int i; sg_init_table(sg, TVMEMSIZE); for (i = 0; i < TVMEMSIZE; i++) { sg_set_buf(sg + i, tvmem[i], PAGE_SIZE); memset(tvmem[i], 0xff, PAGE_SIZE); } } static inline int do_one_ahash_op(struct ahash_request *req, int ret) { if (ret == -EINPROGRESS || ret == -EBUSY) { struct tcrypt_result *tr = req->base.data; wait_for_completion(&tr->completion); reinit_completion(&tr->completion); ret = tr->err; } return ret; } struct test_mb_ahash_data { struct scatterlist sg[TVMEMSIZE]; char result[64]; struct ahash_request *req; struct tcrypt_result tresult; char *xbuf[XBUFSIZE]; }; static void test_mb_ahash_speed(const char *algo, unsigned int sec, struct hash_speed *speed) { struct test_mb_ahash_data *data; struct crypto_ahash *tfm; unsigned long start, end; unsigned long cycles; unsigned int i, j, k; int ret; data = kzalloc(sizeof(*data) * 8, GFP_KERNEL); if (!data) return; tfm = crypto_alloc_ahash(algo, 0, 0); if (IS_ERR(tfm)) { pr_err("failed to load transform for %s: %ld\n", algo, PTR_ERR(tfm)); goto free_data; } for (i = 0; i < 8; ++i) { if (testmgr_alloc_buf(data[i].xbuf)) goto out; init_completion(&data[i].tresult.completion); data[i].req = ahash_request_alloc(tfm, GFP_KERNEL); if (!data[i].req) { pr_err("alg: hash: Failed to allocate request for %s\n", algo); goto out; } ahash_request_set_callback(data[i].req, 0, tcrypt_complete, &data[i].tresult); test_hash_sg_init(data[i].sg); } pr_info("\ntesting speed of multibuffer %s (%s)\n", algo, get_driver_name(crypto_ahash, tfm)); for (i = 0; speed[i].blen != 0; i++) { /* For some reason this only tests digests. */ if (speed[i].blen != speed[i].plen) continue; if (speed[i].blen > TVMEMSIZE * PAGE_SIZE) { pr_err("template (%u) too big for tvmem (%lu)\n", speed[i].blen, TVMEMSIZE * PAGE_SIZE); goto out; } if (speed[i].klen) crypto_ahash_setkey(tfm, tvmem[0], speed[i].klen); for (k = 0; k < 8; k++) ahash_request_set_crypt(data[k].req, data[k].sg, data[k].result, speed[i].blen); pr_info("test%3u " "(%5u byte blocks,%5u bytes per update,%4u updates): ", i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen); start = get_cycles(); for (k = 0; k < 8; k++) { ret = crypto_ahash_digest(data[k].req); if (ret == -EINPROGRESS) { ret = 0; continue; } if (ret) break; complete(&data[k].tresult.completion); data[k].tresult.err = 0; } for (j = 0; j < k; j++) { struct tcrypt_result *tr = &data[j].tresult;