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From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
	linux-scsi@vger.kernel.org
Cc: Sagi Grimberg <sagi@grimberg.me>, Daniel Wagner <dwagner@suse.de>,
	Wen Xiong <wenxiong@us.ibm.com>,
	John Garry <john.garry@huawei.com>,
	Hannes Reinecke <hare@suse.de>, Keith Busch <kbusch@kernel.org>,
	Damien Le Moal <damien.lemoal@wdc.com>,
	Ming Lei <ming.lei@redhat.com>
Subject: [PATCH V2 2/6] nvme: pci: pass BLK_MQ_F_MANAGED_IRQ to blk-mq
Date: Fri,  2 Jul 2021 23:05:51 +0800	[thread overview]
Message-ID: <20210702150555.2401722-3-ming.lei@redhat.com> (raw)
In-Reply-To: <20210702150555.2401722-1-ming.lei@redhat.com>

blk-mq needs to know if the controller allocates managed irq vectors or
not, so pass the info to blk-mq.

The rule is that driver has to tell blk-mq if managed irq is used.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 drivers/nvme/host/pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index d3c5086673bc..093c56e1428e 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2317,7 +2317,8 @@ static void nvme_dev_add(struct nvme_dev *dev)
 		dev->tagset.queue_depth = min_t(unsigned int, dev->q_depth,
 						BLK_MQ_MAX_DEPTH) - 1;
 		dev->tagset.cmd_size = sizeof(struct nvme_iod);
-		dev->tagset.flags = BLK_MQ_F_SHOULD_MERGE;
+		dev->tagset.flags = BLK_MQ_F_SHOULD_MERGE |
+			BLK_MQ_F_MANAGED_IRQ;
 		dev->tagset.driver_data = dev;
 
 		/*
-- 
2.31.1


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  parent reply	other threads:[~2021-07-02 15:07 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-02 15:05 [PATCH V2 0/6] blk-mq: fix blk_mq_alloc_request_hctx Ming Lei
2021-07-02 15:05 ` [PATCH V2 1/6] blk-mq: prepare for not deactivating hctx if managed irq isn't used Ming Lei
2021-07-02 15:05 ` Ming Lei [this message]
2021-07-02 15:05 ` [PATCH V2 3/6] scsi: add flag of .use_managed_irq to 'struct Scsi_Host' Ming Lei
2021-07-05  9:25   ` John Garry
2021-07-05  9:55     ` Ming Lei
2021-07-06  5:37       ` Christoph Hellwig
2021-07-06  7:41         ` Ming Lei
2021-07-06 10:32           ` Hannes Reinecke
2021-07-07 10:53             ` Ming Lei
2021-07-02 15:05 ` [PATCH V2 4/6] scsi: set shost->use_managed_irq if driver uses managed irq Ming Lei
2021-07-05  7:35   ` John Garry
2021-07-06  5:38   ` Christoph Hellwig
2021-07-02 15:05 ` [PATCH V2 5/6] virtio: add one field into virtio_device for recording if device " Ming Lei
2021-07-02 15:55   ` Michael S. Tsirkin
2021-07-05  2:48     ` Ming Lei
2021-07-05  3:59   ` Jason Wang
2021-07-06  5:42   ` Christoph Hellwig
2021-07-06  7:53     ` Ming Lei
2021-07-07  9:06     ` Thomas Gleixner
2021-07-07  9:42       ` Ming Lei
2021-07-07 14:05         ` Christoph Hellwig
2021-07-08  6:34           ` Ming Lei
2021-07-02 15:05 ` [PATCH V2 6/6] blk-mq: don't deactivate hctx if managed irq isn't used Ming Lei

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