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authorHartmut Brandt <harti@FreeBSD.org>2003-07-15 08:59:38 +0000
committerHartmut Brandt <harti@FreeBSD.org>2003-07-15 08:59:38 +0000
commit7e9024cdd9a555f05fef1a872eb05e0d4fefebc1 (patch)
treeeac7c97625d7814908b085bb062256b985ea60a7 /sys/conf/options
parent8e36ed92f292b37d496c38412f856b3c7df7bc26 (diff)
downloadsrc-7e9024cdd9a555f05fef1a872eb05e0d4fefebc1.tar.gz
src-7e9024cdd9a555f05fef1a872eb05e0d4fefebc1.zip
Add a facility for devices, specifically network interfaces, that require
large to huge amounts of small or medium sized receive buffers. The problem with these situations is that they eat up the available DMA address space very quickly when using mbufs or even mbuf clusters. Additionally this facility provides a direct mapping between 32-bit integers and these buffers. This is needed for devices originally designed for 32-bit systems. Ususally the virtual address of the buffer is used as a handle to find the buffer as soon as it is returned by the card. This does not work for 64-bit machines and hence this mapping is needed.
Notes
Notes: svn path=/head/; revision=117624
Diffstat (limited to 'sys/conf/options')
-rw-r--r--sys/conf/options1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/conf/options b/sys/conf/options
index ba2b4102034f..484547a494c4 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -346,6 +346,7 @@ IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h
IPSTEALTH
IPX
IPXIP opt_ipx.h
+LIBMBPOOL
LIBMCHAIN
NCP
NETATALK opt_atalk.h