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crypto: cryptd - Add cryptd_max_cpu_qlen module parameter

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Make the cryptd queue length configurable. We recently had customer where this
needed to be tuned to accommodate the aesni_intel module and prevent packet
drop.

Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jon Maxwell 2017-11-22 16:08:17 +11:00 committed by Herbert Xu
parent 019cd46984
commit c3a5360563
1 changed files with 5 additions and 2 deletions
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7
crypto/cryptd.c
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@ -32,7 +32,9 @@
#include <linux/sched.h>
#include <linux/slab.h>
#define CRYPTD_MAX_CPU_QLEN 1000
unsigned int cryptd_max_cpu_qlen = 1000;
module_param(cryptd_max_cpu_qlen, uint, 0);
MODULE_PARM_DESC(cryptd_max_cpu_qlen, "Set cryptd Max queue depth");
struct cryptd_cpu_queue {
struct crypto_queue queue;
@ -116,6 +118,7 @@ static int cryptd_init_queue(struct cryptd_queue *queue,
crypto_init_queue(&cpu_queue->queue, max_cpu_qlen);
INIT_WORK(&cpu_queue->work, cryptd_queue_worker);
}
pr_info("cryptd: max_cpu_qlen set to %d\n", max_cpu_qlen);
return 0;
}
@ -1372,7 +1375,7 @@ static int __init cryptd_init(void)
{
int err;
err = cryptd_init_queue(&queue, CRYPTD_MAX_CPU_QLEN);
err = cryptd_init_queue(&queue, cryptd_max_cpu_qlen);
if (err)
return err;