diff options
author | hselasky <hselasky@FreeBSD.org> | 2014-12-01 11:45:24 +0000 |
---|---|---|
committer | hselasky <hselasky@FreeBSD.org> | 2014-12-01 11:45:24 +0000 |
commit | 12fec3618b88732ec95820e4717a392d431ddb61 (patch) | |
tree | d86e98862d3f751374d30816df77d445c922050e /sys/netinet6/in6_pcb.c | |
parent | c0fac76850261711c131065afbecdb475c7783f8 (diff) | |
download | FreeBSD-src-12fec3618b88732ec95820e4717a392d431ddb61.zip FreeBSD-src-12fec3618b88732ec95820e4717a392d431ddb61.tar.gz |
Start process of removing the use of the deprecated "M_FLOWID" flag
from the FreeBSD network code. The flag is still kept around in the
"sys/mbuf.h" header file, but does no longer have any users. Instead
the "m_pkthdr.rsstype" field in the mbuf structure is now used to
decide the meaning of the "m_pkthdr.flowid" field. To modify the
"m_pkthdr.rsstype" field please use the existing "M_HASHTYPE_XXX"
macros as defined in the "sys/mbuf.h" header file.
This patch introduces new behaviour in the transmit direction.
Previously network drivers checked if "M_FLOWID" was set in "m_flags"
before using the "m_pkthdr.flowid" field. This check has now now been
replaced by checking if "M_HASHTYPE_GET(m)" is different from
"M_HASHTYPE_NONE". In the future more hashtypes will be added, for
example hashtypes for hardware dedicated flows.
"M_HASHTYPE_OPAQUE" indicates that the "m_pkthdr.flowid" value is
valid and has no particular type. This change removes the need for an
"if" statement in TCP transmit code checking for the presence of a
valid flowid value. The "if" statement mentioned above is now a direct
variable assignment which is then later checked by the respective
network drivers like before.
Additional notes:
- The SCTP code changes will be committed as a separate patch.
- Removal of the "M_FLOWID" flag will also be done separately.
- The FreeBSD version has been bumped.
MFC after: 1 month
Sponsored by: Mellanox Technologies
Diffstat (limited to 'sys/netinet6/in6_pcb.c')
-rw-r--r-- | sys/netinet6/in6_pcb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/netinet6/in6_pcb.c b/sys/netinet6/in6_pcb.c index 2a7b9dc..3b61849 100644 --- a/sys/netinet6/in6_pcb.c +++ b/sys/netinet6/in6_pcb.c @@ -1252,7 +1252,7 @@ in6_pcblookup_mbuf(struct inpcbinfo *pcbinfo, struct in6_addr *faddr, * XXXRW: As above, that policy belongs in the pcbgroup code. */ if (in_pcbgroup_enabled(pcbinfo) && - !(M_HASHTYPE_TEST(m, M_HASHTYPE_NONE))) { + M_HASHTYPE_TEST(m, M_HASHTYPE_NONE) == 0) { pcbgroup = in6_pcbgroup_byhash(pcbinfo, M_HASHTYPE_GET(m), m->m_pkthdr.flowid); if (pcbgroup != NULL) |