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Convert cryptostats to a counter_u64 array.

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The global counters were not SMP-friendly.  Use per-CPU counters
instead.

Reviewed by:	jhb
Sponsored by:	Rubicon Communications, LLC (Netgate)
Differential Revision:	https://reviews.freebsd.org/D25466
This commit is contained in:
markj 2020-06-30 22:01:21 +00:00
parent 3a67faed10
commit 7d012ee0ad
2 changed files with 42 additions and 20 deletions
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46
sys/opencrypto/crypto.c
View File

@ -59,7 +59,7 @@ __FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/eventhandler.h>
#include <sys/counter.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/linker.h>
@ -232,9 +232,31 @@ static int crypto_kinvoke(struct cryptkop *krp);
static void crypto_task_invoke(void *ctx, int pending);
static void crypto_batch_enqueue(struct cryptop *crp);
static struct cryptostats cryptostats;
SYSCTL_STRUCT(_kern_crypto, OID_AUTO, stats, CTLFLAG_RW, &cryptostats,
cryptostats, "Crypto system statistics");
static counter_u64_t cryptostats[sizeof(struct cryptostats) / sizeof(uint64_t)];
SYSCTL_COUNTER_U64_ARRAY(_kern_crypto, OID_AUTO, stats, CTLFLAG_RW,
cryptostats, nitems(cryptostats),
"Crypto system statistics");
#define CRYPTOSTAT_INC(stat) do { \
counter_u64_add( \
cryptostats[offsetof(struct cryptostats, stat) / sizeof(uint64_t)],\
1); \
} while (0)
static void
cryptostats_init(void *arg __unused)
{
COUNTER_ARRAY_ALLOC(cryptostats, nitems(cryptostats), M_WAITOK);
}
SYSINIT(cryptostats_init, SI_SUB_COUNTER, SI_ORDER_ANY, cryptostats_init, NULL);
static void
cryptostats_fini(void *arg __unused)
{
COUNTER_ARRAY_FREE(cryptostats, nitems(cryptostats));
}
SYSUNINIT(cryptostats_fini, SI_SUB_COUNTER, SI_ORDER_ANY, cryptostats_fini,
NULL);
/* Try to avoid directly exposing the key buffer as a symbol */
static struct keybuf *keybuf;
@ -1399,7 +1421,7 @@ crypto_dispatch(struct cryptop *crp)
crp_sanity(crp);
#endif
cryptostats.cs_ops++;
CRYPTOSTAT_INC(cs_ops);
crp->crp_retw_id = ((uintptr_t)crp->crp_session) % crypto_workers_num;
@ -1460,7 +1482,7 @@ crypto_kdispatch(struct cryptkop *krp)
{
int error;
cryptostats.cs_kops++;
CRYPTOSTAT_INC(cs_kops);
krp->krp_cap = NULL;
error = crypto_kinvoke(krp);
@ -1767,7 +1789,7 @@ crypto_done(struct cryptop *crp)
("crypto_done: op already done, flags 0x%x", crp->crp_flags));
crp->crp_flags |= CRYPTO_F_DONE;
if (crp->crp_etype != 0)
cryptostats.cs_errs++;
CRYPTOSTAT_INC(cs_errs);
/*
* CBIMM means unconditionally do the callback immediately;
@ -1839,7 +1861,7 @@ crypto_kdone(struct cryptkop *krp)
struct cryptocap *cap;
if (krp->krp_status != 0)
cryptostats.cs_kerrs++;
CRYPTOSTAT_INC(cs_kerrs);
CRYPTO_DRIVER_LOCK();
cap = krp->krp_cap;
KASSERT(cap->cc_koperations > 0, ("cc_koperations == 0"));
@ -1979,7 +2001,7 @@ crypto_proc(void)
*/
cap->cc_qblocked = 1;
TAILQ_INSERT_HEAD(&crp_q, submit, crp_next);
cryptostats.cs_blocks++;
CRYPTOSTAT_INC(cs_blocks);
}
}
@ -2016,7 +2038,7 @@ crypto_proc(void)
*/
krp->krp_cap->cc_kqblocked = 1;
TAILQ_INSERT_HEAD(&crp_kq, krp, krp_next);
cryptostats.cs_kblocks++;
CRYPTOSTAT_INC(cs_kblocks);
}
}
@ -2038,7 +2060,7 @@ crypto_proc(void)
crp_sleep = 0;
if (cryptoproc == NULL)
break;
cryptostats.cs_intrs++;
CRYPTOSTAT_INC(cs_intrs);
}
}
CRYPTO_Q_UNLOCK();
@ -2099,7 +2121,7 @@ crypto_ret_proc(struct crypto_ret_worker *ret_worker)
"crypto_ret_wait", 0);
if (ret_worker->cryptoretproc == NULL)
break;
cryptostats.cs_rets++;
CRYPTOSTAT_INC(cs_rets);
}
}
CRYPTO_RETW_UNLOCK(ret_worker);

16
sys/opencrypto/cryptodev.h
View File

@ -327,14 +327,14 @@ struct crypt_kop {
#define CIOCCRYPTAEAD _IOWR('c', 109, struct crypt_aead)
struct cryptostats {
u_int32_t cs_ops; /* symmetric crypto ops submitted */
u_int32_t cs_errs; /* symmetric crypto ops that failed */
u_int32_t cs_kops; /* asymetric/key ops submitted */
u_int32_t cs_kerrs; /* asymetric/key ops that failed */
u_int32_t cs_intrs; /* crypto swi thread activations */
u_int32_t cs_rets; /* crypto return thread activations */
u_int32_t cs_blocks; /* symmetric op driver block */
u_int32_t cs_kblocks; /* symmetric op driver block */
uint64_t cs_ops; /* symmetric crypto ops submitted */
uint64_t cs_errs; /* symmetric crypto ops that failed */
uint64_t cs_kops; /* asymetric/key ops submitted */
uint64_t cs_kerrs; /* asymetric/key ops that failed */
uint64_t cs_intrs; /* crypto swi thread activations */
uint64_t cs_rets; /* crypto return thread activations */
uint64_t cs_blocks; /* symmetric op driver block */
uint64_t cs_kblocks; /* symmetric op driver block */
};
#ifdef _KERNEL