From mboxrd@z Thu Jan 1 00:00:00 1970 From: bvanassche@acm.org (Bart Van Assche) Date: Fri, 21 Dec 2018 07:02:39 -0800 Subject: [PATCH 1/2] nvme-pci: add module param for io queue number In-Reply-To: <1545372253-28025-1-git-send-email-shan.hai@oracle.com> References: <1545372253-28025-1-git-send-email-shan.hai@oracle.com> Message-ID: <677bfb90-c328-c707-a042-156f17cb426f@acm.org> On 12/20/18 10:04 PM, Shan Hai wrote: > The num_possible_cpus() number of io queues by default would cause > irq vector shortage problem on a large system when hotplugging cpus, > add a module parameter to set number of io queues according to the > system configuration to fix the issue. Is it possible to achieve this without introducing a new configuration knob? I think it will be much more convenient for users of large systems that they don't have to discover a knob like this one first in order to make the NVMe driver work on their systems. Thanks, Bart.