git: 9e6d11ce9a51 - main - vtnet: Adjust rx buffer so IP header 32-bit aligned

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=9e6d11ce9a51d75ed6a94e180f2fb4e9188a2ba4

commit 9e6d11ce9a51d75ed6a94e180f2fb4e9188a2ba4
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2023-12-20 19:09:09 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2023-12-21 04:16:45 +0000

    vtnet: Adjust rx buffer so IP header 32-bit aligned
    
    Call madj(m, ETHER_ALIGN) to offset rx buffers when allocating them.
    This improves performance everywhere, and allows armv7 to work at all.
    
    PR:                     271288 (PR had a different fix than I wound up with)
    MFC After:              3 days
    Sponsored by:           Netflix
    Differential Revision:  https://reviews.freebsd.org/D43136
---
 sys/dev/virtio/network/if_vtnet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/virtio/network/if_vtnet.c b/sys/dev/virtio/network/if_vtnet.c
index 287af7751066..360176e4f845 100644
--- a/sys/dev/virtio/network/if_vtnet.c
+++ b/sys/dev/virtio/network/if_vtnet.c
@@ -1532,8 +1532,8 @@ vtnet_rx_alloc_buf(struct vtnet_softc *sc, int nbufs, struct mbuf **m_tailp)
 			m_freem(m_head);
 			return (NULL);
 		}
-
 		m->m_len = size;
+		m_adj(m, ETHER_ALIGN);
 		if (m_head != NULL) {
 			m_tail->m_next = m;
 			m_tail = m;