git: 2e2e51f15ae5 - stable/12 - altq: Increase maximum number of CBQ and HFSC classes

[Kristof Provost]

The branch stable/12 has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=2e2e51f15ae521c1e3e5f399f4799697e9e5f000

commit 2e2e51f15ae521c1e3e5f399f4799697e9e5f000
Author:     Kristof Provost <kp at FreeBSD.org>
AuthorDate: 2021-03-03 10:06:49 +0000
Commit:     Kristof Provost <kp at FreeBSD.org>
CommitDate: 2021-03-19 22:39:00 +0000

    altq: Increase maximum number of CBQ and HFSC classes
    
    In some configurations we need more classes than ALTQ supports by
    default.  Increase the maximum number of classes we allow.
    This will only cost us a comparatively trivial amount of memory, so
    there's little reason not to do so.
    
    If ever we find we want even more we may want to consider turning these
    defines into a tunable, but for now do the easy thing.
    
    Reviewed by:    donner@
    MFC after:      2 weeks
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
    Differential Revision:  https://reviews.freebsd.org/D29034
    
    (cherry picked from commit 448732b8e2d9bf4e2656a2e5a9e88cc58b88d4f4)
---
 sys/net/altq/altq_cbq.h  | 2 +-
 sys/net/altq/altq_hfsc.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/net/altq/altq_cbq.h b/sys/net/altq/altq_cbq.h
index 64c75fe95a5f..ea305b49034e 100644
--- a/sys/net/altq/altq_cbq.h
+++ b/sys/net/altq/altq_cbq.h
@@ -205,7 +205,7 @@ struct cbq_getstats {
 #define	CBQ_TIMEOUT		10
 #define	CBQ_LS_TIMEOUT		(20 * hz / 1000)
 
-#define	CBQ_MAX_CLASSES	256
+#define	CBQ_MAX_CLASSES	2048
 
 #ifdef ALTQ3_COMPAT
 #define	CBQ_MAX_FILTERS 256
diff --git a/sys/net/altq/altq_hfsc.h b/sys/net/altq/altq_hfsc.h
index bd35b6bb65c7..f768c59ae71a 100644
--- a/sys/net/altq/altq_hfsc.h
+++ b/sys/net/altq/altq_hfsc.h
@@ -60,7 +60,7 @@ struct service_curve_v1 {
 	
 /* special class handles */
 #define	HFSC_NULLCLASS_HANDLE	0
-#define	HFSC_MAX_CLASSES	64
+#define	HFSC_MAX_CLASSES	2048
 
 /* hfsc class flags */
 #define	HFCF_RED		0x0001	/* use RED */