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nvme queue 

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Merge tag 'pull-nvme-20241203' of https://gitlab.com/birkelund/qemu into staging

nvme queue

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# gpg: Signature made Tue 03 Dec 2024 06:28:45 GMT
# gpg:                using RSA key 522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [full]
# gpg:                 aka "Klaus Jensen <k.jensen@samsung.com>" [full]
# Primary key fingerprint: DDCA 4D9C 9EF9 31CC 3468  4272 63D5 6FC5 E55D A838
#      Subkey fingerprint: 5228 33AA 75E2 DCE6 A247  66C0 4DE1 AF31 6D4F 0DE9

* tag 'pull-nvme-20241203' of https://gitlab.com/birkelund/qemu:
  hw/nvme: take a reference on the subsystem on vf realization
  hw/nvme: SR-IOV VFs must hardwire pci interrupt pin register to zero
  hw/nvme: fix use/unuse of msix vectors
  hw/nvme: fix msix_uninit with exclusive bar

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2024-12-03 10:22:21 +00:00
parent b2e64cb929 6651f8f2e5
commit 248f9209ed
1 changed files with 23 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
hw/nvme/ctrl.c
View File

@ -656,6 +656,12 @@ static void nvme_irq_check(NvmeCtrl *n)
if (msix_enabled(pci)) {
return;
}
/* vfs does not implement intx */
if (pci_is_vf(pci)) {
return;
}
if (~intms & n->irq_status) {
pci_irq_assert(pci);
} else {
@ -5423,7 +5429,7 @@ static void nvme_free_cq(NvmeCQueue *cq, NvmeCtrl *n)
event_notifier_set_handler(&cq->notifier, NULL);
event_notifier_cleanup(&cq->notifier);
}
if (msix_enabled(pci)) {
if (msix_enabled(pci) && cq->irq_enabled) {
msix_vector_unuse(pci, cq->vector);
}
if (cq->cqid) {
@ -5464,9 +5470,10 @@ static void nvme_init_cq(NvmeCQueue *cq, NvmeCtrl *n, uint64_t dma_addr,
{
PCIDevice *pci = PCI_DEVICE(n);
if (msix_enabled(pci)) {
if (msix_enabled(pci) && irq_enabled) {
msix_vector_use(pci, vector);
}
cq->ctrl = n;
cq->cqid = cqid;
cq->size = size;
@ -8543,7 +8550,7 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pci_dev, Error **errp)
unsigned nr_vectors;
int ret;
pci_conf[PCI_INTERRUPT_PIN] = 1;
pci_conf[PCI_INTERRUPT_PIN] = pci_is_vf(pci_dev) ? 0 : 1;
pci_config_set_prog_interface(pci_conf, 0x2);
if (n->params.use_intel_id) {
@ -8834,6 +8841,13 @@ static void nvme_realize(PCIDevice *pci_dev, Error **errp)
*/
n->params.serial = g_strdup(pn->params.serial);
n->subsys = pn->subsys;
/*
* Assigning this link (strong link) causes an `object_unref` later in
* `object_release_link_property`. Increment the refcount to balance
* this out.
*/
object_ref(OBJECT(pn->subsys));
}
if (!nvme_check_params(n, errp)) {
@ -8904,7 +8918,12 @@ static void nvme_exit(PCIDevice *pci_dev)
pcie_sriov_pf_exit(pci_dev);
}
msix_uninit(pci_dev, &n->bar0, &n->bar0);
if (n->params.msix_exclusive_bar && !pci_is_vf(pci_dev)) {
msix_uninit_exclusive_bar(pci_dev);
} else {
msix_uninit(pci_dev, &n->bar0, &n->bar0);
}
memory_region_del_subregion(&n->bar0, &n->iomem);
}