cc'ing linux-pci * Anil kumar <anils_r@xxxxxxxxx>: > Hi, > > In the driver, during interrupt registration for MSIX we get > the vector numbers assigned from the kernel and we associate > the entry and interrupt handlers with this vector. > > I want to achieve the following logic in the driver: > In the queuecommand I assign MSIX vector for each command > before sending it down. The reason why I want to do this is I > want to get the response back in that particular MSIX vector > entry interrupt handler only. For example If I am sending two > commands down, command1 will have MSIX_vector_1 and command2 > will have MSIX_vector_2. The interrupt handlers registered are > MSIX_vector_1_Int1 and MSIX_vector_2_Int2. When command is > complete the response should come back in the respective > interrupt handlers registered for MSIX_vector_1 and > MSIX_vector_2 only. > > To achieve this, I will take msix_entries.[1].vector and assign > it to command1 in queuecommand and msix_entries.[2].vector and > assign it to command2. > > Question: > Now if I have a Dual core CPU, CORE1 and CORE2 each with > vectors 0 to 4 on them. When I shoot a command with > msix_entries[1].vector will the completion for this command > come from CORE1 core vector1 or it can come from CORE2 vector1. > Is it okay if we get response(triggered interrupt handler) back > from CORE2. Will I have any routing issues here? > > -or- > > Is there a way wherein I can call some function to make sure > that let the kernel assign MSIX.vector for my command in proper > distributed way in my queuecommand. > > with regards, Anil > > > > > > -- To unsubscribe from this list: send the line "unsubscribe > linux-kernel" in the body of a message to > majordomo@xxxxxxxxxxxxxxx More majordomo info at > http://vger.kernel.org/majordomo-info.html Please read the FAQ > at http://www.tux.org/lkml/ > -- 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
