Re: [dpdk-dev] [PATCH v13 2/2] kni: support IOVA mode

2019-11-15 Thread Jerin Jacob
On Fri, Nov 15, 2019 at 8:27 PM David Marchand wrote: > > On Fri, Nov 15, 2019 at 2:40 PM Jerin Jacob wrote: > > On Fri, Nov 15, 2019 at 6:29 PM David Marchand > > wrote: > > > So far, KNI could not work with IOVA as VA. > > > Your patchset adds support for IOVA as VA if kernel is >= 4.6. > > >

Re: [dpdk-dev] [PATCH v13 2/2] kni: support IOVA mode

2019-11-15 Thread David Marchand
On Fri, Nov 15, 2019 at 2:40 PM Jerin Jacob wrote: > On Fri, Nov 15, 2019 at 6:29 PM David Marchand > wrote: > > So far, KNI could not work with IOVA as VA. > > Your patchset adds support for IOVA as VA if kernel is >= 4.6. > > We need achive the following. > > IOVA as PA has performance implica

Re: [dpdk-dev] [PATCH v13 2/2] kni: support IOVA mode

2019-11-15 Thread Jerin Jacob
On Fri, Nov 15, 2019 at 6:29 PM David Marchand wrote: > > I can't see an interest in splitting this patch from the kmod update. > Ferruh, what do you think? > > > On Fri, Nov 15, 2019 at 12:19 PM wrote: > > > > From: Vamsi Attunuru > > > > Current KNI implementation only operates in IOVA_PA mode

Re: [dpdk-dev] [PATCH v13 2/2] kni: support IOVA mode

2019-11-15 Thread David Marchand
I can't see an interest in splitting this patch from the kmod update. Ferruh, what do you think? On Fri, Nov 15, 2019 at 12:19 PM wrote: > > From: Vamsi Attunuru > > Current KNI implementation only operates in IOVA_PA mode > patch adds required functionality to enable KNI in > IOVA_VA mode. > >

Re: [dpdk-dev] [PATCH v13 2/2] kni: support IOVA mode

2019-11-15 Thread Ferruh Yigit
On 11/15/2019 11:18 AM, vattun...@marvell.com wrote: > From: Vamsi Attunuru > > Current KNI implementation only operates in IOVA_PA mode > patch adds required functionality to enable KNI in > IOVA_VA mode. > > KNI loopback mode tests will have performance impact in > this mode due to IOVA to KVA

[dpdk-dev] [PATCH v13 2/2] kni: support IOVA mode

2019-11-15 Thread vattunuru
From: Vamsi Attunuru Current KNI implementation only operates in IOVA_PA mode patch adds required functionality to enable KNI in IOVA_VA mode. KNI loopback mode tests will have performance impact in this mode due to IOVA to KVA address translations. However, In KNI real world use cases, the perf