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Groups > linux.kernel > #1656823
| From | Christoph Hellwig <hch@lst.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 8/8] nvme: allocate queues for all possible CPUs |
| Date | 2017-06-03 16:10 +0200 |
| Message-ID | <tOhUC-81i-37@gated-at.bofh.it> (permalink) |
| References | <tOhUB-81i-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Unlike most drŅvers that simply pass the maximum possible vectors to pci_alloc_irq_vectors NVMe needs to configure the device before allocting the vectors, so it needs a manual update for the new scheme of using all present CPUs. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/nvme/host/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index d52701df7245..4152d93fbbef 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1525,7 +1525,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev) struct pci_dev *pdev = to_pci_dev(dev->dev); int result, nr_io_queues, size; - nr_io_queues = num_online_cpus(); + nr_io_queues = num_present_cpus(); result = nvme_set_queue_count(&dev->ctrl, &nr_io_queues); if (result < 0) return result; -- 2.11.0
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spread MSI(-X) vectors to all possible CPUs V2 Christoph Hellwig <hch@lst.de> - 2017-06-03 16:10 +0200
[PATCH 3/8] genirq/affinity: factor out a irq_affinity_set helper Christoph Hellwig <hch@lst.de> - 2017-06-03 16:10 +0200
Re: [PATCH 3/8] genirq/affinity: factor out a irq_affinity_set helper Sagi Grimberg <sagi@grimberg.me> - 2017-06-04 17:20 +0200
[PATCH 6/8] blk-mq: include all present CPUs in the default queue mapping Christoph Hellwig <hch@lst.de> - 2017-06-03 16:10 +0200
Re: [PATCH 6/8] blk-mq: include all present CPUs in the default queue mapping Sagi Grimberg <sagi@grimberg.me> - 2017-06-04 17:20 +0200
[PATCH 8/8] nvme: allocate queues for all possible CPUs Christoph Hellwig <hch@lst.de> - 2017-06-03 16:10 +0200
Re: [PATCH 8/8] nvme: allocate queues for all possible CPUs Sagi Grimberg <sagi@grimberg.me> - 2017-06-04 17:20 +0200
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