[PATCH] NVMe: Write CC before calling enable.

[Keith Busch]

On Tue, 1 Jul 2014, Dan McLeran wrote:
> Write the controller configuration register to configure queue sizes,
> memory page size, etc. from within nvme_configure_admin_queue before
> calling nvme_enable_ctrl.

I can see that you're doing that, but why? Is this fixing something?

> Signed-off-by: Dan McLeran <daniel.mcleran at intel.com>
> ---
> drivers/block/nvme-core.c |    1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
> index 28aec2d..58281d2 100644
> --- a/drivers/block/nvme-core.c
> +++ b/drivers/block/nvme-core.c
> @@ -1512,6 +1512,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
> 	writel(aqa, &dev->bar->aqa);
> 	writeq(nvmeq->sq_dma_addr, &dev->bar->asq);
> 	writeq(nvmeq->cq_dma_addr, &dev->bar->acq);
> +	writel(dev->ctrl_config, &dev->bar->cc);
>
> 	result = nvme_enable_ctrl(dev, cap);
> 	if (result)
> -- 
> 1.7.10.4
>
>
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