Attachment 216367 Details for Bug 247163 – cesa session limit patch (untested)

[patch] cesa session limit patch (untested)

diff (text/plain), 1.58 KB, created by Mark Johnston on 2020-07-10 19:22:36 UTC

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Creator: Mark Johnston

Created: 2020-07-10 19:22:36 UTC

Size: 1.58 KB

patch

obsolete

>Index: sys/dev/cesa/cesa.c
>===================================================================
>--- sys/dev/cesa/cesa.c	(revision 363001)
>+++ sys/dev/cesa/cesa.c	(working copy)
>@@ -245,7 +245,7 @@ static struct cesa_session *
> cesa_get_session(struct cesa_softc *sc, uint32_t sid)
> {
> 
>-	if (sid >= CESA_SESSIONS)
>+	if (sid >= sc->sc_nsessions)
> 		return (NULL);
> 
> 	return (&sc->sc_sessions[sid]);
>@@ -1177,7 +1177,11 @@ cesa_attach(device_t dev)
> 
> 	/* Initialize data structures: Sessions Pool */
> 	STAILQ_INIT(&sc->sc_free_sessions);
>-	for (i = 0; i < CESA_SESSIONS; i++) {
>+	sc->sc_nsessions = CESA_SESSIONS;
>+	TUNABLE_INT_FETCH("hw.cesa.nsessions", &sc->sc_nsessions);
>+	sc->sc_sessions = malloc(sizeof(struct cesa_session) * sc->sc_nsessions,
>+	    M_DEVBUF, M_WAITOK | M_ZERO);
>+	for (i = 0; i < sc->sc_nsessions; i++) {
> 		sc->sc_sessions[i].cs_sid = i;
> 		STAILQ_INSERT_TAIL(&sc->sc_free_sessions, &sc->sc_sessions[i],
> 		    cs_stq);
>Index: sys/dev/cesa/cesa.h
>===================================================================
>--- sys/dev/cesa/cesa.h	(revision 363001)
>+++ sys/dev/cesa/cesa.h	(working copy)
>@@ -30,7 +30,7 @@
> #define _DEV_CESA_H_
> 
> /* Maximum number of allocated sessions */
>-#define CESA_SESSIONS			64
>+#define CESA_SESSIONS			128
> 
> /* Maximum number of queued requests */
> #define CESA_REQUESTS			256
>@@ -262,7 +262,8 @@ struct cesa_softc {
> 
> 	/* Sessions pool */
> 	struct mtx			sc_sessions_lock;
>-	struct cesa_session		sc_sessions[CESA_SESSIONS];
>+	struct cesa_session		*sc_sessions;
>+	int				sc_nsessions;
> 	STAILQ_HEAD(, cesa_session)	sc_free_sessions;
> 
> 	/* CESA SRAM Address */

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Attachments on bug 247163: 216367