git: 8d804809630f - stable/12 - mlx4en(4): Fix wrong mbuf cluster size in mlx4_en_debugnet_init()

From: Hans Petter Selasky <hselasky_at_FreeBSD.org>
Date: Tue, 12 Oct 2021 12:17:49 UTC
The branch stable/12 has been updated by hselasky:

URL: https://cgit.FreeBSD.org/src/commit/?id=8d804809630fd145683de92ba502a9ed34b94115

commit 8d804809630fd145683de92ba502a9ed34b94115
Author:     Hans Petter Selasky <hselasky@FreeBSD.org>
AuthorDate: 2021-10-05 08:46:56 +0000
Commit:     Hans Petter Selasky <hselasky@FreeBSD.org>
CommitDate: 2021-10-12 12:17:02 +0000

    mlx4en(4): Fix wrong mbuf cluster size in mlx4_en_debugnet_init()
    
    This fixes an "invalid cluster size" panic when debugnet is activated.
    
    panic()
    m_getzone()
    debugnet_mbuf_reinit()
    debugnet_any_ifnet_update()
    ifhwioctl()
    ifioctl()
    
    Submitted by:   ae@
    PR:             258923
    Sponsored by:   NVIDIA Networking
    
    (cherry picked from commit 5a7de2b42caf6241e87b417a0521e9ab303989d7)
---
 sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c b/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
index f128aa3c1bd0..85e323b9a882 100644
--- a/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
+++ b/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
@@ -2904,7 +2904,7 @@ mlx4_en_netdump_init(struct ifnet *dev, int *nrxr, int *ncl, int *clsize)
 	mutex_lock(&priv->mdev->state_lock);
 	*nrxr = priv->rx_ring_num;
 	*ncl = NETDUMP_MAX_IN_FLIGHT;
-	*clsize = priv->rx_mb_size;
+	*clsize = MCLBYTES;
 	mutex_unlock(&priv->mdev->state_lock);
 }