On 11/07/2017 10:56 AM, Kavanagh, Mark B wrote: >> From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] >> Sent: Monday, November 6, 2017 8:38 PM >> To: dev@dpdk.org; y...@fridaylinux.org; Kavanagh, Mark B >> <mark.b.kavan...@intel.com>; tho...@monjalon.net; ktray...@redhat.com >> Cc: Maxime Coquelin <maxime.coque...@redhat.com> >> Subject: [PATCH v2 0/3] vhost: disable iommu support by default >> >> This series disables IOMMU feature by default, and introduce >> a new flag passed at vhost device registration time to enable >> it explicitly. >> >> When disabled, patch 1 also disables reply-ack protocol feature >> to avoid Qemu v2.7.0-v2.9.0 reply-ack bug with multiqueue. >> >> Last patch adds a Vhost PMD "iommu-support" parameter to enable >> the IOMMU feature. >
Hi Maxime - OVS-DPDK does not use the vhost pmd, so that means that iommu could not be used with OVS-DPDK at present. Did I get that right? Ciara proposed patches for vhost pmd in OVS-DPDK but it is quite an intrusive change and has been postponed multiple times due to various issues. thanks, Kevin. > Hi Maxime, > > I'm happy to confirm that this patchset resolves the vhost user mutltiq issue > for OvS-DPDK, with QEMU v2.7.1. > > Additionally, all of the individual patches look good - thanks for all of > your efforts on this! > > Tested-by: Mark Kavanagh <mark.b.kavan...@intel.com> > Acked-by: Mark Kavanagh <mark.b.kavan...@intel.com> > > Cheers, > Mark > >> >> Maxime Coquelin (3): >> vhost: disable reply-ack protocol feature if iommu feature disabled >> vhost: add flag to enable iommu support >> net: vhost: add iommu-support parameter to enable IOMMU feature >> >> doc/guides/nics/vhost.rst | 5 +++++ >> doc/guides/prog_guide/vhost_lib.rst | 14 ++++++++++++++ >> doc/guides/rel_notes/release_17_11.rst | 3 ++- >> drivers/net/vhost/rte_eth_vhost.c | 13 +++++++++++++ >> lib/librte_vhost/rte_vhost.h | 1 + >> lib/librte_vhost/socket.c | 6 ++++++ >> lib/librte_vhost/vhost_user.c | 24 ++++++++++++++++++++++-- >> 7 files changed, 63 insertions(+), 3 deletions(-) >> >> -- >> 2.13.6 >
