target/linux/generic/files/crypto/ocf/ocf-bench.c

   1 /*
   2  * A loadable module that benchmarks the OCF crypto speed from kernel space.
   3  *
   4  * Copyright (C) 2004-2010 David McCullough <david_mccullough@mcafee.com>
   5  *
   6  * LICENSE TERMS
   7  *
   8  * The free distribution and use of this software in both source and binary
   9  * form is allowed (with or without changes) provided that:
  10  *
  11  *   1. distributions of this source code include the above copyright
  12  *      notice, this list of conditions and the following disclaimer;
  13  *
  14  *   2. distributions in binary form include the above copyright
  15  *      notice, this list of conditions and the following disclaimer
  16  *      in the documentation and/or other associated materials;
  17  *
  18  *   3. the copyright holder's name is not used to endorse products
  19  *      built using this software without specific written permission.
  20  *
  21  * ALTERNATIVELY, provided that this notice is retained in full, this product
  22  * may be distributed under the terms of the GNU General Public License (GPL),
  23  * in which case the provisions of the GPL apply INSTEAD OF those given above.
  24  *
  25  * DISCLAIMER
  26  *
  27  * This software is provided 'as is' with no explicit or implied warranties
  28  * in respect of its properties, including, but not limited to, correctness
  29  * and/or fitness for purpose.
  30  */
  31
  32
  33 #include <linux/version.h>
  34 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
  35 #include <linux/config.h>
  36 #endif
  37 #include <linux/module.h>
  38 #include <linux/init.h>
  39 #include <linux/list.h>
  40 #include <linux/slab.h>
  41 #include <linux/wait.h>
  42 #include <linux/sched.h>
  43 #include <linux/spinlock.h>
  44 #include <linux/interrupt.h>
  45 #include <cryptodev.h>
  46
  47 #ifdef I_HAVE_AN_XSCALE_WITH_INTEL_SDK
  48 #define BENCH_IXP_ACCESS_LIB 1
  49 #endif
  50 #ifdef BENCH_IXP_ACCESS_LIB
  51 #include <IxTypes.h>
  52 #include <IxOsBuffMgt.h>
  53 #include <IxNpeDl.h>
  54 #include <IxCryptoAcc.h>
  55 #include <IxQMgr.h>
  56 #include <IxOsServices.h>
  57 #include <IxOsCacheMMU.h>
  58 #endif
  59
  60 /*
  61  * support for access lib version 1.4
  62  */
  63 #ifndef IX_MBUF_PRIV
  64 #define IX_MBUF_PRIV(x) ((x)->priv)
  65 #endif
  66
  67 /*
  68  * the number of simultaneously active requests
  69  */
  70 static int request_q_len = 40;
  71 module_param(request_q_len, int, 0);
  72 MODULE_PARM_DESC(request_q_len, "Number of outstanding requests");
  73
  74 /*
  75  * how many requests we want to have processed
  76  */
  77 static int request_num = 1024;
  78 module_param(request_num, int, 0);
  79 MODULE_PARM_DESC(request_num, "run for at least this many requests");
  80
  81 /*
  82  * the size of each request
  83  */
  84 static int request_size = 1488;
  85 module_param(request_size, int, 0);
  86 MODULE_PARM_DESC(request_size, "size of each request");
  87
  88 /*
  89  * OCF batching of requests
  90  */
  91 static int request_batch = 1;
  92 module_param(request_batch, int, 0);
  93 MODULE_PARM_DESC(request_batch, "enable OCF request batching");
  94
  95 /*
  96  * OCF immediate callback on completion
  97  */
  98 static int request_cbimm = 1;
  99 module_param(request_cbimm, int, 0);
 100 MODULE_PARM_DESC(request_cbimm, "enable OCF immediate callback on completion");
 101
 102 /*
 103  * a structure for each request
 104  */
 105 typedef struct  {
 106         struct work_struct work;
 107 #ifdef BENCH_IXP_ACCESS_LIB
 108         IX_MBUF mbuf;
 109 #endif
 110         unsigned char *buffer;
 111 } request_t;
 112
 113 static request_t *requests;
 114
 115 static spinlock_t ocfbench_counter_lock;
 116 static int outstanding;
 117 static int total;
 118
 119 /*************************************************************************/
 120 /*
 121  * OCF benchmark routines
 122  */
 123
 124 static uint64_t ocf_cryptoid;
 125 static unsigned long jstart, jstop;
 126
 127 static int ocf_init(void);
 128 static int ocf_cb(struct cryptop *crp);
 129 static void ocf_request(void *arg);
 130 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 131 static void ocf_request_wq(struct work_struct *work);
 132 #endif
 133
 134 static int
 135 ocf_init(void)
 136 {
 137         int error;
 138         struct cryptoini crie, cria;
 139         struct cryptodesc crda, crde;
 140
 141         memset(&crie, 0, sizeof(crie));
 142         memset(&cria, 0, sizeof(cria));
 143         memset(&crde, 0, sizeof(crde));
 144         memset(&crda, 0, sizeof(crda));
 145
 146         cria.cri_alg  = CRYPTO_SHA1_HMAC;
 147         cria.cri_klen = 20 * 8;
 148         cria.cri_key  = "0123456789abcdefghij";
 149
 150         //crie.cri_alg  = CRYPTO_3DES_CBC;
 151         crie.cri_alg  = CRYPTO_AES_CBC;
 152         crie.cri_klen = 24 * 8;
 153         crie.cri_key  = "0123456789abcdefghijklmn";
 154
 155         crie.cri_next = &cria;
 156
 157         error = crypto_newsession(&ocf_cryptoid, &crie,
 158                                 CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE);
 159         if (error) {
 160                 printk("crypto_newsession failed %d\n", error);
 161                 return -1;
 162         }
 163         return 0;
 164 }
 165
 166 static int
 167 ocf_cb(struct cryptop *crp)
 168 {
 169         request_t *r = (request_t *) crp->crp_opaque;
 170         unsigned long flags;
 171
 172         if (crp->crp_etype)
 173                 printk("Error in OCF processing: %d\n", crp->crp_etype);
 174         crypto_freereq(crp);
 175         crp = NULL;
 176
 177         /* do all requests  but take at least 1 second */
 178         spin_lock_irqsave(&ocfbench_counter_lock, flags);
 179         total++;
 180         if (total > request_num && jstart + HZ < jiffies) {
 181                 outstanding--;
 182                 spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 183                 return 0;
 184         }
 185         spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 186
 187         schedule_work(&r->work);
 188         return 0;
 189 }
 190
 191
 192 static void
 193 ocf_request(void *arg)
 194 {
 195         request_t *r = arg;
 196         struct cryptop *crp = crypto_getreq(2);
 197         struct cryptodesc *crde, *crda;
 198         unsigned long flags;
 199
 200         if (!crp) {
 201                 spin_lock_irqsave(&ocfbench_counter_lock, flags);
 202                 outstanding--;
 203                 spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 204                 return;
 205         }
 206
 207         crde = crp->crp_desc;
 208         crda = crde->crd_next;
 209
 210         crda->crd_skip = 0;
 211         crda->crd_flags = 0;
 212         crda->crd_len = request_size;
 213         crda->crd_inject = request_size;
 214         crda->crd_alg = CRYPTO_SHA1_HMAC;
 215         crda->crd_key = "0123456789abcdefghij";
 216         crda->crd_klen = 20 * 8;
 217
 218         crde->crd_skip = 0;
 219         crde->crd_flags = CRD_F_IV_EXPLICIT | CRD_F_ENCRYPT;
 220         crde->crd_len = request_size;
 221         crde->crd_inject = request_size;
 222         //crde->crd_alg = CRYPTO_3DES_CBC;
 223         crde->crd_alg = CRYPTO_AES_CBC;
 224         crde->crd_key = "0123456789abcdefghijklmn";
 225         crde->crd_klen = 24 * 8;
 226
 227         crp->crp_ilen = request_size + 64;
 228         crp->crp_flags = 0;
 229         if (request_batch)
 230                 crp->crp_flags |= CRYPTO_F_BATCH;
 231         if (request_cbimm)
 232                 crp->crp_flags |= CRYPTO_F_CBIMM;
 233         crp->crp_buf = (caddr_t) r->buffer;
 234         crp->crp_callback = ocf_cb;
 235         crp->crp_sid = ocf_cryptoid;
 236         crp->crp_opaque = (caddr_t) r;
 237         crypto_dispatch(crp);
 238 }
 239
 240 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 241 static void
 242 ocf_request_wq(struct work_struct *work)
 243 {
 244         request_t *r = container_of(work, request_t, work);
 245         ocf_request(r);
 246 }
 247 #endif
 248
 249 static void
 250 ocf_done(void)
 251 {
 252         crypto_freesession(ocf_cryptoid);
 253 }
 254
 255 /*************************************************************************/
 256 #ifdef BENCH_IXP_ACCESS_LIB
 257 /*************************************************************************/
 258 /*
 259  * CryptoAcc benchmark routines
 260  */
 261
 262 static IxCryptoAccCtx ixp_ctx;
 263 static UINT32 ixp_ctx_id;
 264 static IX_MBUF ixp_pri;
 265 static IX_MBUF ixp_sec;
 266 static int ixp_registered = 0;
 267
 268 static void ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp,
 269                                         IxCryptoAccStatus status);
 270 static void ixp_perform_cb(UINT32 ctx_id, IX_MBUF *sbufp, IX_MBUF *dbufp,
 271                                         IxCryptoAccStatus status);
 272 static void ixp_request(void *arg);
 273 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 274 static void ixp_request_wq(struct work_struct *work);
 275 #endif
 276
 277 static int
 278 ixp_init(void)
 279 {
 280         IxCryptoAccStatus status;
 281
 282         ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_3DES;
 283         ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
 284         ixp_ctx.cipherCtx.cipherKeyLen = 24;
 285         ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
 286         ixp_ctx.cipherCtx.cipherInitialVectorLen = IX_CRYPTO_ACC_DES_IV_64;
 287         memcpy(ixp_ctx.cipherCtx.key.cipherKey, "0123456789abcdefghijklmn", 24);
 288
 289         ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_SHA1;
 290         ixp_ctx.authCtx.authDigestLen = 12;
 291         ixp_ctx.authCtx.aadLen = 0;
 292         ixp_ctx.authCtx.authKeyLen = 20;
 293         memcpy(ixp_ctx.authCtx.key.authKey, "0123456789abcdefghij", 20);
 294
 295         ixp_ctx.useDifferentSrcAndDestMbufs = 0;
 296         ixp_ctx.operation = IX_CRYPTO_ACC_OP_ENCRYPT_AUTH ;
 297
 298         IX_MBUF_MLEN(&ixp_pri)  = IX_MBUF_PKT_LEN(&ixp_pri) = 128;
 299         IX_MBUF_MDATA(&ixp_pri) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
 300         IX_MBUF_MLEN(&ixp_sec)  = IX_MBUF_PKT_LEN(&ixp_sec) = 128;
 301         IX_MBUF_MDATA(&ixp_sec) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
 302
 303         status = ixCryptoAccCtxRegister(&ixp_ctx, &ixp_pri, &ixp_sec,
 304                         ixp_register_cb, ixp_perform_cb, &ixp_ctx_id);
 305
 306         if (IX_CRYPTO_ACC_STATUS_SUCCESS == status) {
 307                 while (!ixp_registered)
 308                         schedule();
 309                 return ixp_registered < 0 ? -1 : 0;
 310         }
 311
 312         printk("ixp: ixCryptoAccCtxRegister failed %d\n", status);
 313         return -1;
 314 }
 315
 316 static void
 317 ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp, IxCryptoAccStatus status)
 318 {
 319         if (bufp) {
 320                 IX_MBUF_MLEN(bufp) = IX_MBUF_PKT_LEN(bufp) = 0;
 321                 kfree(IX_MBUF_MDATA(bufp));
 322                 IX_MBUF_MDATA(bufp) = NULL;
 323         }
 324
 325         if (IX_CRYPTO_ACC_STATUS_WAIT == status)
 326                 return;
 327         if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
 328                 ixp_registered = 1;
 329         else
 330                 ixp_registered = -1;
 331 }
 332
 333 static void
 334 ixp_perform_cb(
 335         UINT32 ctx_id,
 336         IX_MBUF *sbufp,
 337         IX_MBUF *dbufp,
 338         IxCryptoAccStatus status)
 339 {
 340         request_t *r = NULL;
 341         unsigned long flags;
 342
 343         /* do all requests  but take at least 1 second */
 344         spin_lock_irqsave(&ocfbench_counter_lock, flags);
 345         total++;
 346         if (total > request_num && jstart + HZ < jiffies) {
 347                 outstanding--;
 348                 spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 349                 return;
 350         }
 351
 352         if (!sbufp || !(r = IX_MBUF_PRIV(sbufp))) {
 353                 printk("crappo %p %p\n", sbufp, r);
 354                 outstanding--;
 355                 spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 356                 return;
 357         }
 358         spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 359
 360         schedule_work(&r->work);
 361 }
 362
 363 static void
 364 ixp_request(void *arg)
 365 {
 366         request_t *r = arg;
 367         IxCryptoAccStatus status;
 368         unsigned long flags;
 369
 370         memset(&r->mbuf, 0, sizeof(r->mbuf));
 371         IX_MBUF_MLEN(&r->mbuf) = IX_MBUF_PKT_LEN(&r->mbuf) = request_size + 64;
 372         IX_MBUF_MDATA(&r->mbuf) = r->buffer;
 373         IX_MBUF_PRIV(&r->mbuf) = r;
 374         status = ixCryptoAccAuthCryptPerform(ixp_ctx_id, &r->mbuf, NULL,
 375                         0, request_size, 0, request_size, request_size, r->buffer);
 376         if (IX_CRYPTO_ACC_STATUS_SUCCESS != status) {
 377                 printk("status1 = %d\n", status);
 378                 spin_lock_irqsave(&ocfbench_counter_lock, flags);
 379                 outstanding--;
 380                 spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 381                 return;
 382         }
 383         return;
 384 }
 385
 386 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 387 static void
 388 ixp_request_wq(struct work_struct *work)
 389 {
 390         request_t *r = container_of(work, request_t, work);
 391         ixp_request(r);
 392 }
 393 #endif
 394
 395 static void
 396 ixp_done(void)
 397 {
 398         /* we should free the session here but I am lazy :-) */
 399 }
 400
 401 /*************************************************************************/
 402 #endif /* BENCH_IXP_ACCESS_LIB */
 403 /*************************************************************************/
 404
 405 int
 406 ocfbench_init(void)
 407 {
 408         int i;
 409         unsigned long mbps;
 410         unsigned long flags;
 411
 412         printk("Crypto Speed tests\n");
 413
 414         requests = kmalloc(sizeof(request_t) * request_q_len, GFP_KERNEL);
 415         if (!requests) {
 416                 printk("malloc failed\n");
 417                 return -EINVAL;
 418         }
 419
 420         for (i = 0; i < request_q_len; i++) {
 421                 /* +64 for return data */
 422 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 423                 INIT_WORK(&requests[i].work, ocf_request_wq);
 424 #else
 425                 INIT_WORK(&requests[i].work, ocf_request, &requests[i]);
 426 #endif
 427                 requests[i].buffer = kmalloc(request_size + 128, GFP_DMA);
 428                 if (!requests[i].buffer) {
 429                         printk("malloc failed\n");
 430                         return -EINVAL;
 431                 }
 432                 memset(requests[i].buffer, '0' + i, request_size + 128);
 433         }
 434
 435         /*
 436          * OCF benchmark
 437          */
 438         printk("OCF: testing ...\n");
 439         if (ocf_init() == -1)
 440                 return -EINVAL;
 441
 442         spin_lock_init(&ocfbench_counter_lock);
 443         total = outstanding = 0;
 444         jstart = jiffies;
 445         for (i = 0; i < request_q_len; i++) {
 446                 spin_lock_irqsave(&ocfbench_counter_lock, flags);
 447                 outstanding++;
 448                 spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 449                 ocf_request(&requests[i]);
 450         }
 451         while (outstanding > 0)
 452                 schedule();
 453         jstop = jiffies;
 454
 455         mbps = 0;
 456         if (jstop > jstart) {
 457                 mbps = (unsigned long) total * (unsigned long) request_size * 8;
 458                 mbps /= ((jstop - jstart) * 1000) / HZ;
 459         }
 460         printk("OCF: %d requests of %d bytes in %d jiffies (%d.%03d Mbps)\n",
 461                         total, request_size, (int)(jstop - jstart),
 462                         ((int)mbps) / 1000, ((int)mbps) % 1000);
 463         ocf_done();
 464
 465 #ifdef BENCH_IXP_ACCESS_LIB
 466         /*
 467          * IXP benchmark
 468          */
 469         printk("IXP: testing ...\n");
 470         ixp_init();
 471         total = outstanding = 0;
 472         jstart = jiffies;
 473         for (i = 0; i < request_q_len; i++) {
 474 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 475                 INIT_WORK(&requests[i].work, ixp_request_wq);
 476 #else
 477                 INIT_WORK(&requests[i].work, ixp_request, &requests[i]);
 478 #endif
 479                 spin_lock_irqsave(&ocfbench_counter_lock, flags);
 480                 outstanding++;
 481                 spin_unlock_irqrestore(&ocfbench_counter_lock, flags);
 482                 ixp_request(&requests[i]);
 483         }
 484         while (outstanding > 0)
 485                 schedule();
 486         jstop = jiffies;
 487
 488         mbps = 0;
 489         if (jstop > jstart) {
 490                 mbps = (unsigned long) total * (unsigned long) request_size * 8;
 491                 mbps /= ((jstop - jstart) * 1000) / HZ;
 492         }
 493         printk("IXP: %d requests of %d bytes in %d jiffies (%d.%03d Mbps)\n",
 494                         total, request_size, jstop - jstart,
 495                         ((int)mbps) / 1000, ((int)mbps) % 1000);
 496         ixp_done();
 497 #endif /* BENCH_IXP_ACCESS_LIB */
 498
 499         for (i = 0; i < request_q_len; i++)
 500                 kfree(requests[i].buffer);
 501         kfree(requests);
 502         return -EINVAL; /* always fail to load so it can be re-run quickly ;-) */
 503 }
 504
 505 static void __exit ocfbench_exit(void)
 506 {
 507 }
 508
 509 module_init(ocfbench_init);
 510 module_exit(ocfbench_exit);
 511
 512 MODULE_LICENSE("BSD");
 513 MODULE_AUTHOR("David McCullough <david_mccullough@mcafee.com>");
 514 MODULE_DESCRIPTION("Benchmark various in-kernel crypto speeds");