Commit ffa9953a authored by Konrad Sztyber's avatar Konrad Sztyber Committed by Tomasz Zawadzki
Browse files

vmd: add attach_device() 



This patch implements the callback for attaching devices behind the VMD
with a given PCI address.

Signed-off-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I07cf92c94cc7e6d3c8e31af7a8615e9a4ca641bf
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13886


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarTom Nabarro <tom.nabarro@intel.com>
parent 3b2097f3

lib/vmd/vmd.c

+56 −0
Original line number Diff line number Diff line
@@ -1423,6 +1423,62 @@ spdk_vmd_hotplug_monitor(void) 
	return num_hotplugs;

}



static int

vmd_attach_device(const struct spdk_pci_addr *addr)

{

	struct vmd_pci_bus *bus;

	struct vmd_adapter *vmd;

	struct vmd_pci_device *dev;

	uint32_t i;

	int rc;



	/* VMD always sets function to zero */

	if (addr->func != 0) {

		return -ENODEV;

	}



	for (i = 0; i < g_vmd_container.count; ++i) {

		vmd = &g_vmd_container.vmd[i];

		if (vmd->domain != addr->domain) {

			continue;

		}



		TAILQ_FOREACH(bus, &vmd->bus_list, tailq) {

			if (bus->bus_number != addr->bus) {

				continue;

			}



			dev = vmd_alloc_dev(bus, addr->dev);

			if (dev == NULL) {

				return -ENODEV;

			}



			/* Only allow attaching endpoint devices */

			if (dev->header->common.header_type & PCI_HEADER_TYPE_BRIDGE) {

				free(dev);

				return -ENODEV;

			}



			rc = vmd_init_end_device(dev);

			if (rc != 0) {

				free(dev);

				return -ENODEV;

			}



			return 0;

		}

	}



	return -ENODEV;

}



static struct spdk_pci_device_provider g_vmd_device_provider = {

	.name = "vmd",

	.attach_cb = vmd_attach_device,

};



SPDK_PCI_REGISTER_DEVICE_PROVIDER(vmd, &g_vmd_device_provider);



int

spdk_vmd_init(void)

{