Author: emaste Date: Tue Dec 5 22:02:46 2017 New Revision: 326597 URL: https://svnweb.freebsd.org/changeset/base/326597
Log: vnic: apply hardware L3 checksum only for IPv4 Previously we set the csum_l3 flag for IPv4 and IPv6, but only IPv4 should have header checksumming applied. Prompted by Linux commit fa6d7cb5d76cf0467c61420fc9238045aedfd379. Reviewed by: bz MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D13366 Modified: head/sys/dev/vnic/nicvf_queues.c Modified: head/sys/dev/vnic/nicvf_queues.c ============================================================================== --- head/sys/dev/vnic/nicvf_queues.c Tue Dec 5 21:42:09 2017 (r326596) +++ head/sys/dev/vnic/nicvf_queues.c Tue Dec 5 22:02:46 2017 (r326597) @@ -1802,6 +1802,8 @@ nicvf_sq_add_hdr_subdesc(struct snd_queue *sq, int qen if (mbuf == NULL) return (ENOBUFS); } + if (mbuf->m_pkthdr.csum_flags & CSUM_IP) + hdr->csum_l3 = 1; /* Enable IP csum calculation */ ip = (struct ip *)(mbuf->m_data + ehdrlen); iphlen = ip->ip_hl << 2; @@ -1809,13 +1811,10 @@ nicvf_sq_add_hdr_subdesc(struct snd_queue *sq, int qen proto = ip->ip_p; break; #endif - default: - hdr->csum_l3 = 0; } #if defined(INET6) || defined(INET) if (poff > 0 && mbuf->m_pkthdr.csum_flags != 0) { - hdr->csum_l3 = 1; /* Enable IP csum calculation */ switch (proto) { case IPPROTO_TCP: if ((mbuf->m_pkthdr.csum_flags & CSUM_TCP) == 0) _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
