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authorMing Lei <ming.lei@redhat.com>2019-01-03 09:34:39 +0800
committerJens Axboe <axboe@kernel.dk>2019-01-16 09:44:28 -0700
commitc45b1fa2433c65e44bdf48f513cb37289f3116b9 (patch)
treef8dc802dee1950b7419eb0e63669c5e0932d454b /drivers/scsi/qedi/qedi_iscsi.h
parentfb8658581a150a859b654b154cefe3118ff4f1e0 (diff)
download96b-common-c45b1fa2433c65e44bdf48f513cb37289f3116b9.tar.gz
nvme-pci: fix nvme_setup_irqs()
When -ENOSPC is returned from pci_alloc_irq_vectors_affinity(), we still try to allocate multiple irq vectors again, so irq queues covers the admin queue actually. But we don't consider that, then number of the allocated irq vector may be same with sum of io_queues[HCTX_TYPE_DEFAULT] and io_queues[HCTX_TYPE_READ], this way is obviously wrong, and finally breaks nvme_pci_map_queues(), and warning from pci_irq_get_affinity() is triggered. IRQ queues should cover admin queues, this patch makes this point explicitely in nvme_calc_io_queues(). We got severl boot failure internal report on aarch64, so please consider to fix it in v4.20. Fixes: 6451fe73fa0f ("nvme: fix irq vs io_queue calculations") Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Keith Busch <keith.busch@intel.com> Tested-by: fin4478 <fin4478@hotmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi/qedi/qedi_iscsi.h')
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