This was used to test the async AES algo. trcypt is working as well but does
enqueue that much :-)
Signed-off-by: Sebastian Siewior <[email protected]>
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -468,6 +468,12 @@ config CRYPTO_TEST
help
Quick & dirty crypto test module.
+config CRYPTO_LIMI_SPEED_ASYNC
+ tristate "Crypto algorithm speed test with msec resolution"
+ help
+ insmod/modprobe the module, and watch dmesg for results.
+ Test is for aes only, see modinfo for options
+
source "drivers/crypto/Kconfig"
endif # if CRYPTO
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += mich
obj-$(CONFIG_CRYPTO_CRC32C) += crc32c.o
obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o
+obj-$(CONFIG_CRYPTO_LIMI_SPEED_ASYNC) += limi-speeda.o
#
# generic algorithms and the async_tx api
--- /dev/null
+++ b/crypto/limi-speeda.c
@@ -0,0 +1,191 @@
+/*
+ * Code derived von crypt/tcrypt.h
+ *
+ * Small speed test with time resolution in msec.
+ * Author: Sebastian Siewior (sebastian _at_ breakpoint.cc)
+ * License: GPL v2
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/scatterlist.h>
+#include <linux/crypto.h>
+#include <linux/jiffies.h>
+#include <linux/types.h>
+#include <linux/err.h>
+
+static unsigned int buff_size = 16 * 1024;
+module_param(buff_size, uint, 0444);
+MODULE_PARM_DESC(buff_size, "Buffer allocated by kmalloc()");
+
+static unsigned int keylen = 16;
+module_param(keylen, uint, 0444);
+MODULE_PARM_DESC(keylen, "Length of the key (16,24 or 32 bits");
+
+static unsigned int mode = 0;
+module_param(mode, uint, 0444);
+MODULE_PARM_DESC(mode, "0 -> encryption else decryption");
+
+static unsigned int big_loops = 10;
+module_param(big_loops, uint, 0444);
+MODULE_PARM_DESC(big_loops, "Number of mensurations.");
+
+static unsigned int small_loops = 10000;
+module_param(small_loops, uint, 0444);
+MODULE_PARM_DESC(small_loops, "loops within one mesurement.");
+
+static unsigned int alg = 1;
+module_param(alg, uint, 0444);
+MODULE_PARM_DESC(alg, "0 -> ecb(aes), else -> cbc(aes)");
+
+static atomic_t req_pending;
+
+static void request_complete(struct crypto_async_request *req, int err)
+{
+ wait_queue_head_t *complete_wq = req->data;
+ struct ablkcipher_request *ablk_req = ablkcipher_request_cast(req);
+
+ atomic_dec(&req_pending);
+ ablkcipher_request_free(ablk_req);
+ wake_up_all(complete_wq);
+}
+
+static int __init init(void)
+{
+ struct scatterlist sg[1];
+ unsigned char iv[16];
+ struct crypto_ablkcipher *tfm;
+ static char *in;
+ unsigned int i;
+ unsigned int ret;
+ unsigned long start, end;
+ unsigned long total = 0;
+ unsigned long size_kb;
+ unsigned char key[32] = { 1, 2, 3, 4, 5, 6 };
+ const unsigned char *algname;
+ struct ablkcipher_request *ablk_req = NULL;
+ wait_queue_head_t complete_wq;
+ DEFINE_WAIT(wait_for_request);
+
+ algname = alg ? "cbc(aes)" : "ecb(aes)";
+ printk("Limi-speed: %s buff_size: %u, keylen: %d, mode: %s\n", algname, buff_size, keylen,
+ mode ? "decryption" : "encryption");
+ printk("loops: %d, iterations: %d, ", big_loops, small_loops);
+ size_kb = small_loops * buff_size / 1024;
+ printk("=> %lu kb or %lu mb a loop\n", size_kb, size_kb/1024);
+
+ if (keylen != 16 && keylen != 24 && keylen != 32) {
+ printk("Invalid keysize\n");
+ return -EINVAL;
+ }
+
+ in = kmalloc(buff_size, GFP_KERNEL);
+ if (in == NULL) {
+ printk("Failed to allocate memory.\n");
+ return -ENOMEM;
+ }
+ printk("'Alloc' in %d @%p\n", buff_size, in);
+ memset(in, 0x24, buff_size);
+ sg_set_buf(sg, in, buff_size);
+
+ tfm = crypto_alloc_ablkcipher(algname, 0, 0 /* CRYPTO_ALG_ASYNC */);
+
+ if (IS_ERR(tfm)) {
+ printk("failed to load transform for %s: %ld\n", algname, PTR_ERR(tfm));
+ goto leave;
+ }
+
+ ret = crypto_ablkcipher_setkey(tfm, key, keylen);
+ if (ret) {
+ printk("setkey() failed\n");
+ goto out_tfm;
+ }
+
+ init_waitqueue_head(&complete_wq);
+ atomic_set(&req_pending, 0);
+
+ for (i=0 ; i<big_loops; i++) {
+ int j;
+ ret = 0;
+ start = jiffies;
+
+ for (j=0; j < small_loops; j++) {
+ while (1) {
+
+ prepare_to_wait(&complete_wq, &wait_for_request, TASK_INTERRUPTIBLE);
+ ablk_req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
+ if (likely(ablk_req))
+ break;
+ printk("ablkcipher_request_alloc() failed\n");
+ schedule();
+ }
+ atomic_inc(&req_pending);
+
+ ablkcipher_request_set_callback(ablk_req, CRYPTO_TFM_REQ_MAY_BACKLOG, request_complete, &complete_wq);
+ ablkcipher_request_set_crypt(ablk_req, sg, sg, buff_size, &iv);
+
+ if (!mode)
+ ret = crypto_ablkcipher_encrypt(ablk_req);
+ else
+ ret = crypto_ablkcipher_decrypt(ablk_req);
+
+ if (unlikely(ret == -EBUSY)) {
+ schedule();
+
+ } else if (unlikely(ret == 0)) {
+ printk("Process in SYNC mode, this is not cool\n");
+ ablkcipher_request_free(ablk_req);
+ goto out_tfm;
+ } else if (unlikely(ret != -EINPROGRESS)) {
+ printk("encryption failed: %d after (i,j) (%u,%u) iterations\n", ret, i, j);
+ ablkcipher_request_free(ablk_req);
+ goto out_tfm;
+ }
+
+ if (signal_pending(current)) {
+ printk("signal catched\n");
+ break;
+ }
+
+ }
+
+ while (1) {
+//clean_up_exit:
+ prepare_to_wait(&complete_wq, &wait_for_request, TASK_INTERRUPTIBLE);
+ if (atomic_read(&req_pending) == 0)
+ break;
+ schedule();
+ }
+
+ end = jiffies;
+ finish_wait(&complete_wq, &wait_for_request);
+
+ if ( !time_after(start, end)) {
+ printk("Run: %u msec\n", jiffies_to_msecs(end - start));
+ total += jiffies_to_msecs(end - start);
+ } else {
+ printk("Run: %u msec\n", jiffies_to_msecs(start - end));
+ total += jiffies_to_msecs(start - end);
+ }
+ if (signal_pending(current))
+ break;
+ }
+
+ total /= big_loops;
+ size_kb *= 1000;
+ size_kb /= total;
+ printk("Average: %lu msec, approx. %lu kb/sec || %lu mb/sec \n", total,
+ size_kb, size_kb/1024);
+out_tfm:
+ crypto_free_ablkcipher(tfm);
+leave:
+ kfree(in);
+ return -ENODEV;
+}
+
+static void __exit fini(void) { }
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
--