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vmd: add attach_device()

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

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I07cf92c94cc7e6d3c8e31af7a8615e9a4ca641bf
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13886
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tom Nabarro <tom.nabarro@intel.com>
This commit is contained in:
Konrad Sztyber 2022-08-04 08:28:05 +02:00 committed by Tomasz Zawadzki
parent 3b2097f313
commit ffa9953a14
1 changed files with 56 additions and 0 deletions
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56
lib/vmd/vmd.c
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@ -1423,6 +1423,62 @@ spdk_vmd_hotplug_monitor(void)
return num_hotplugs; 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 int
spdk_vmd_init(void) spdk_vmd_init(void)
{ {