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hw/pvrdma: Clean device's resource when system is shutdown 

In order to clean some external resources such as GIDs, QPs etc,
register to receive notification when VM is shutdown.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
This commit is contained in:
Yuval Shaia 2018-12-21 16:40:34 +02:00 committed by Marcel Apfelbaum
parent 2dadd75385
commit ffa65d97fc
2 changed files with 17 additions and 0 deletions
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2
hw/rdma/vmw/pvrdma.h
View File

@ -17,6 +17,7 @@
#define PVRDMA_PVRDMA_H
#include "qemu/units.h"
#include "qemu/notify.h"
#include "hw/pci/pci.h"
#include "hw/pci/msix.h"
#include "chardev/char-fe.h"
@ -87,6 +88,7 @@ typedef struct PVRDMADev {
RdmaDeviceResources rdma_dev_res;
CharBackend mad_chr;
VMXNET3State *func0;
Notifier shutdown_notifier;
} PVRDMADev;
#define PVRDMA_DEV(dev) OBJECT_CHECK(PVRDMADev, (dev), PVRDMA_HW_NAME)

15
hw/rdma/vmw/pvrdma_main.c
View File

@ -24,6 +24,7 @@
#include "hw/qdev-properties.h"
#include "cpu.h"
#include "trace.h"
#include "sysemu/sysemu.h"
#include "../rdma_rm.h"
#include "../rdma_backend.h"
@ -334,6 +335,9 @@ static void pvrdma_fini(PCIDevice *pdev)
if (msix_enabled(pdev)) {
uninit_msix(pdev, RDMA_MAX_INTRS);
}
pr_dbg("Device %s %x.%x is down\n", pdev->name, PCI_SLOT(pdev->devfn),
PCI_FUNC(pdev->devfn));
}
static void pvrdma_stop(PVRDMADev *dev)
@ -559,6 +563,14 @@ static int pvrdma_check_ram_shared(Object *obj, void *opaque)
return 0;
}
static void pvrdma_shutdown_notifier(Notifier *n, void *opaque)
{
PVRDMADev *dev = container_of(n, PVRDMADev, shutdown_notifier);
PCIDevice *pci_dev = PCI_DEVICE(dev);
pvrdma_fini(pci_dev);
}
static void pvrdma_realize(PCIDevice *pdev, Error **errp)
{
int rc;
@ -632,6 +644,9 @@ static void pvrdma_realize(PCIDevice *pdev, Error **errp)
goto out;
}
dev->shutdown_notifier.notify = pvrdma_shutdown_notifier;
qemu_register_shutdown_notifier(&dev->shutdown_notifier);
out:
if (rc) {
error_append_hint(errp, "Device fail to load\n");