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Defer crypto operations to a workqueue and make it utilize all CPUs.

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Make device mpsafe.
Some code cleanup.
This commit is contained in:
mlelstv 2020-03-09 08:33:15 +00:00
parent da092eb7d2
commit afc6579b5e
2 changed files with 549 additions and 194 deletions
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711
sys/dev/cgd.c
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32
sys/dev/cgdvar.h
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@ -1,4 +1,4 @@
/* $NetBSD: cgdvar.h,v 1.18 2015/09/06 06:00:59 dholland Exp $ */
/* $NetBSD: cgdvar.h,v 1.19 2020/03/09 08:33:15 mlelstv Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -80,17 +80,41 @@ struct cryptdata {
void *cf_priv; /* enc alg private data */
};
struct cgd_xfer {
struct work cx_work;
struct cgd_softc *cx_sc;
struct buf *cx_obp;
struct buf *cx_nbp;
void *cx_dstv;
void *cx_srcv;
size_t cx_len;
daddr_t cx_blkno;
size_t cx_secsize;
int cx_dir;
};
struct cgd_worker {
struct workqueue *cw_wq; /* work queue */
struct pool *cw_cpool; /* cgd_xfer contexts */
u_int cw_busy; /* number of busy contexts */
u_int cw_last; /* index of last CPU used */
kmutex_t cw_lock;
};
struct cgd_softc {
struct dk_softc sc_dksc; /* generic disk interface */
struct vnode *sc_tvn; /* target device's vnode */
dev_t sc_tdev; /* target device */
char *sc_tpath; /* target device's path */
void * sc_data; /* emergency buffer */
int sc_data_used; /* Really lame, we'll change */
void *sc_data; /* emergency buffer */
bool sc_data_used; /* Really lame, we'll change */
size_t sc_tpathlen; /* length of prior string */
struct cryptdata sc_cdata; /* crypto data */
const struct cryptfuncs *sc_cfuncs; /* encryption functions */
kmutex_t sc_lock; /* our lock */
kmutex_t sc_lock;
kcondvar_t sc_cv;
bool sc_busy;
struct cgd_worker *sc_worker; /* shared worker data */
};
#endif