Date: Mon, 8 Jun 2009 09:13:16 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r193697 - user/kmacy/releng_7_2_fcs/sys/dev/cxgb Message-ID: <200906080913.n589DGkA021879@svn.freebsd.org>
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Author: kmacy Date: Mon Jun 8 09:13:16 2009 New Revision: 193697 URL: http://svn.freebsd.org/changeset/base/193697 Log: comment on inefficiency in t3_encap Modified: user/kmacy/releng_7_2_fcs/sys/dev/cxgb/cxgb_sge.c Modified: user/kmacy/releng_7_2_fcs/sys/dev/cxgb/cxgb_sge.c ============================================================================== --- user/kmacy/releng_7_2_fcs/sys/dev/cxgb/cxgb_sge.c Mon Jun 8 08:26:13 2009 (r193696) +++ user/kmacy/releng_7_2_fcs/sys/dev/cxgb/cxgb_sge.c Mon Jun 8 09:13:16 2009 (r193697) @@ -1404,6 +1404,11 @@ t3_encap(struct sge_qset *qs, struct mbu cbe->cntrl = htonl(cntrl); cbe->len = htonl(segs[i].ds_len | 0x80000000); cbe->addr = htobe64(segs[i].ds_addr); + /* + * 62% of function time is spent on the following - need to + * calculate the value to be stored in an intermediate + * and then do a direct update + */ txd->flit[fidx] |= htobe64(1 << 24); }
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