Hi David, We are on a very old kernel (2.6.xx) that lacks VFIO. In the future however, after migration to a newer kernel it will be an option.
I like the "-b all" and "-w none" idea, but I think it might be complicated to implement it the way we would need it to work. The existing -b and -w options persist for the duration of the application, and we would need the "-b all"/"-w none" to persists only through rte_eal_init() time. Otherwise our attempt to to attach a device at a later time would be blocked by the option. Wouldn't it be simpler to have an option to disable the rte_eal_init() time the probe. Would that address the issue with VFIO, prevent automatically attaching to devices while permitting on demand attach? Thanks again. Regards, -Roger On 11/14/15 12:51 PM, David Marchand wrote: > Hello Roger, > > On Sat, Nov 14, 2015 at 4:55 PM, Roger B. Melton <rmelton at cisco.com > <mailto:rmelton at cisco.com>> wrote: > > Agreed. For our application, the debug case would be to _enable_ > the PCI scan. > > Again, thanks David for pointing it out. It did solve our problem. > > > The only problem with --no-pci is that I think that vfio won't work > properly if used. > > Did you try to blacklist all your devices then attach them later ? > I would say what you need here is to "blacklist all" or "whitelist > none" at startup, so maybe a special keyword for -b/-w options. > > > -- > David Marchand -- ____________________________________________________________________ |Roger B. Melton | | Cisco Systems | |CPP Software :|: :|: 7100 Kit Creek Rd | |+1.919.476.2332 phone :|||: :|||: RTP, NC 27709-4987 | |+1.919.392.1094 fax .:|||||||:..:|||||||:. rmelton at cisco.com | | | | This email may contain confidential and privileged material for the| | sole use of the intended recipient. Any review, use, distribution | | or disclosure by others is strictly prohibited. If you are not the | | intended recipient (or authorized to receive for the recipient), | | please contact the sender by reply email and delete all copies of | | this message. | | | | For corporate legal information go to: | | http://www.cisco.com/web/about/doing_business/legal/cri/index.html | |__________________________ http://www.cisco.com ____________________|
