yongari 2008-08-20 05:19:41 UTC FreeBSD src repository
Modified files: (Branch: RELENG_7) sys/dev/sk if_sk.c if_skreg.h Log: SVN rev 181902 on 2008-08-20 05:19:41Z by yongari MFC r176264: Nuke local jumbo allocator and switch to use of UMA backed page allocator for jumbo frame. o Removed unneeded jlist lock which was used to manage jumbo buffers. o Don't reinitialize hardware if MTU was not changed. o Added additional check for minimal MTU size. o Added a new tunable hw.skc.jumbo_disable to disable jumbo frame support for the driver. The tunable could be set for systems that do not need to use jumbo frames and it would save (9K * number of Rx descriptors) bytes kernel memory. o Jumbo buffer allocation failure is no longer critical error for the operation of sk(4). If sk(4) encounter the allocation failure it just disables jumbo frame support and continues to work without user intervention. With these changes jumbo frame performance of sk(4) was slightly increased and users should not encounter jumbo buffer allocation failure. Previously sk(4) tried to allocate physically contiguous memory, 3388KB for 256 Rx descriptors. Sometimes that amount of contiguous memory region could not be available for running systems which in turn resulted in failure of loading the driver. Revision Changes Path 1.137.2.2 +141 -261 src/sys/dev/sk/if_sk.c 1.41.2.1 +1 -34 src/sys/dev/sk/if_skreg.h _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"