Re: [dpdk-users] Changes to DPDK kmod drivers / backward compatibility within LTS rel.
On 29/10/2020 21:07, Thomas Monjalon wrote: > 24/09/2020 19:12, Alexander Kotliarov: >> Hi there! >> I would like to find out what is the policy regarding changes to the DPDK's >> kmod drivers such as igb_uio.ko within a DPDK's LTS release. Are these >> changes backward compatible? >> For example, is there a guarantee that an application built >> against 19.11.5, where igb_uio.ko received changes,would run with this >> driver built from 19.11.1 version? >> >> Does http://doc.dpdk.org/guides/contributing/stable.html section 8.4 apply >> to kmod drivers as well? > > There is no such formal guarantee, but in my opinion, > it should be the case. Do you imagine a change in kmod > which could break a DPDK version? > We never said anything specifically about the kmods (kni or igb_uio). There is always a possibility a change here could break DPDK, however remote. More probable for KNI than igb_uio. Ray K
Re: [dpdk-users] Changes to DPDK kmod drivers / backward compatibility within LTS rel.
On Thu, 29 Oct 2020 22:07:38 +0100 Thomas Monjalon wrote: > 24/09/2020 19:12, Alexander Kotliarov: > > Hi there! > > I would like to find out what is the policy regarding changes to the DPDK's > > kmod drivers such as igb_uio.ko within a DPDK's LTS release. Are these > > changes backward compatible? > > For example, is there a guarantee that an application built > > against 19.11.5, where igb_uio.ko received changes,would run with this > > driver built from 19.11.1 version? > > > > Does http://doc.dpdk.org/guides/contributing/stable.html section 8.4 apply > > to kmod drivers as well? > > There is no such formal guarantee, but in my opinion, > it should be the case. Do you imagine a change in kmod > which could break a DPDK version? Why do you still need to use igb_uio? Can you use vfio instead?
Re: [dpdk-users] Changes to DPDK kmod drivers / backward compatibility within LTS rel.
24/09/2020 19:12, Alexander Kotliarov: > Hi there! > I would like to find out what is the policy regarding changes to the DPDK's > kmod drivers such as igb_uio.ko within a DPDK's LTS release. Are these > changes backward compatible? > For example, is there a guarantee that an application built > against 19.11.5, where igb_uio.ko received changes,would run with this > driver built from 19.11.1 version? > > Does http://doc.dpdk.org/guides/contributing/stable.html section 8.4 apply > to kmod drivers as well? There is no such formal guarantee, but in my opinion, it should be the case. Do you imagine a change in kmod which could break a DPDK version?
[dpdk-users] Changes to DPDK kmod drivers / backward compatibility within LTS rel.
Hi there! I would like to find out what is the policy regarding changes to the DPDK's kmod drivers such as igb_uio.ko within a DPDK's LTS release. Are these changes backward compatible? For example, is there a guarantee that an application built against 19.11.5, where igb_uio.ko received changes,would run with this driver built from 19.11.1 version? Does http://doc.dpdk.org/guides/contributing/stable.html section 8.4 apply to kmod drivers as well? Thanks. Alex Kotliarov
