Hi, Can anyone from Mellanox please help me understand this better? really hoping for any pointers that will be helpful... Specifically: > Now, my query is, lets say the VF driver is not yet present and only > the PF driver is there... > > In this case, can we simulate a VF command write and get notified > through an event? > > For eg. we write to some offset in the PF BAR space itself upon > completion of which, an event is generated because of the write? kind > of like loopback mechanism. > Thanks so much, Bob On Thu, Aug 28, 2014 at 10:58 PM, Bob Biloxi <iambobbiloxi@xxxxxxxxx> wrote: > Hi All, > > > I really appreciate this wonderful community which has immensely > helped me broaden my knowledge and understanding. > > > I was going through the mlx4 sriov code, trying to understand the > communication between the VF driver and the PF driver. > > I was having a few queries..hoping to get a better understanding. > > > As I understand, the commands are communicated between VF and PF > through a mechanism called communication channel. VF writes to > specific address in its BAR space, PF gets an event and then proceeds > ahead to read the command from its BAR space and then complete the > execution of it.. > > > Now, my query is, lets say the VF driver is not yet present and only > the PF driver is there... > > In this case, can we simulate a VF command write and get notified > through an event? > > For eg. we write to some offset in the PF BAR space itself upon > completion of which, an event is generated because of the write? kind > of like loopback mechanism. > > > I searched through the code but couldn't find anywhere. > > Can anyone please help me understand if this is possible? And if there > is any location in the code where i can find this? > > Thanks a lot in advance!! > > > Best Regards, > Bob -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
