D59152.id185713.diff
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D59152.id185713.diff
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	diff --git a/sys/dev/nvme/nvme_ns.c b/sys/dev/nvme/nvme_ns.c
	--- a/sys/dev/nvme/nvme_ns.c
	+++ b/sys/dev/nvme/nvme_ns.c
	@@ -602,8 +602,10 @@
	* cdev may have already been created, if we are reconstructing the
	* namespace after a controller-level reset.
	*/
	- if (ns->cdev != NULL)
	+ if (ns->cdev != NULL) {
	+ ns->cdev->si_iosize_max = ctrlr->max_xfer_size;
	return (0);
	+ }

	/*
	* Namespace IDs start at 1, so we need to subtract 1 to create a
	@@ -623,6 +625,11 @@
	ns->cdev->si_drv2 = make_dev_alias(ns->cdev, "%sns%d",
	device_get_nameunit(ctrlr->dev), ns->id);
	ns->cdev->si_flags \|= SI_UNMAPPED;
	+ /*
	+ * Limit physio requests to the controller's maximum transfer size.
	+ * The qpair payload DMA tag is constructed with the same limit.
	+ */
	+ ns->cdev->si_iosize_max = ctrlr->max_xfer_size;
	ns->flags \|= NVME_NS_ALIVE;

	return (0);