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authorhiren <hiren@FreeBSD.org>2015-04-24 23:26:44 +0000
committerhiren <hiren@FreeBSD.org>2015-04-24 23:26:44 +0000
commitb09afc6f3f088fa610e8e85066b0efc23f29fee1 (patch)
treede613f73923e17e263a2e466febe13b7dc30ceaf /share
parent0c3758f009b82212c1c351b8dabdbb5e6b28b85a (diff)
downloadFreeBSD-src-b09afc6f3f088fa610e8e85066b0efc23f29fee1.zip
FreeBSD-src-b09afc6f3f088fa610e8e85066b0efc23f29fee1.tar.gz
MFC r275358 r275483 r276982 - Removing M_FLOWID by hps@
r275358: 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 This check has now now been replaced by checking if "M_HASHTYPE_GET(m)" is different from "M_HASHTYPE_NONE".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. r275483: Remove M_FLOWID from SCTP code. r276982: Remove no longer used "M_FLOWID" flag from mbuf.h and update the netisr manpage. Note: The FreeBSD version has been bumped. Reviewed by: hps, tuexen Sponsored by: Limelight Networks
Diffstat (limited to 'share')
-rw-r--r--share/man/man9/netisr.912
1 files changed, 6 insertions, 6 deletions
diff --git a/share/man/man9/netisr.9 b/share/man/man9/netisr.9
index e1e5822..a4fa108 100644
--- a/share/man/man9/netisr.9
+++ b/share/man/man9/netisr.9
@@ -27,7 +27,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd February 22, 2010
+.Dd January 11, 2015
.Dt NETISR 9
.Os
.Sh NAME
@@ -126,13 +126,13 @@ MIB names, so should not contain whitespace.
Protocol handler function that will be invoked on each packet received for
the protocol.
.It Vt netisr_m2flow_t Va nh_m2flow
-Optional protocol function to generate a flow ID and set
-.Dv M_FLOWID
-for packets that do not enter
+Optional protocol function to generate a flow ID and set a valid
+hashtype for packets that enter the
.Nm
with
-.Dv M_FLOWID
-defined.
+.Dv M_HASHTYPE_GET(m)
+equal to
+.Dv M_HASHTYPE_NONE .
Will be used only with
.Dv NETISR_POLICY_FLOW .
.It Vt netisr_m2cpuid_t Va nh_m2cpuid
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