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| author | Gleb Smirnoff <glebius@FreeBSD.org> | 2019-01-31 22:37:28 +0000 |
|---|---|---|
| committer | Gleb Smirnoff <glebius@FreeBSD.org> | 2019-01-31 22:37:28 +0000 |
| commit | eec189c70ba5bed05b2831426bb04e8a0b38fdb2 (patch) | |
| tree | 330b731d076e83d221c2453f849ab0cf8a74941a /sys/sys | |
| parent | 919e7b5359a7e7346c175b32022b5d698fde17bc (diff) | |
| download | src-eec189c70ba5bed05b2831426bb04e8a0b38fdb2.tar.gz src-eec189c70ba5bed05b2831426bb04e8a0b38fdb2.zip | |
Add new m_ext type for data for M_NOFREE mbufs, which doesn't actually do
anything except several assertions. This type is going to be used for
temporary on stack mbufs, that point into data in receive ring of a NIC,
that shall not be freed. Such mbuf can not be stored or reallocated, its
life time is current context.
Notes
Notes:
svn path=/head/; revision=343627
Diffstat (limited to 'sys/sys')
| -rw-r--r-- | sys/sys/mbuf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/sys/mbuf.h b/sys/sys/mbuf.h index 827a01e3ba79..75217ed65c37 100644 --- a/sys/sys/mbuf.h +++ b/sys/sys/mbuf.h @@ -443,6 +443,7 @@ struct mbuf { #define EXT_JUMBO16 5 /* jumbo cluster 16184 bytes */ #define EXT_PACKET 6 /* mbuf+cluster from packet zone */ #define EXT_MBUF 7 /* external mbuf reference */ +#define EXT_RXRING 8 /* data in NIC receive ring */ #define EXT_VENDOR1 224 /* for vendor-internal use */ #define EXT_VENDOR2 225 /* for vendor-internal use */ |