More implementations of OCSSDs are becoming available. Adding each using pci ids are becoming a hassle. Instead, use a 16 byte string in the vendor-specific area of the identification command to identify an Open-Channel SSD. The large string should make the collision probability with other vendor-specific strings to be near nil. Signed-off-by: Matias Bjørling <matias@xxxxxxxxxxxx> --- drivers/nvme/host/lightnvm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c index 4ea9c93..e37b432 100644 --- a/drivers/nvme/host/lightnvm.c +++ b/drivers/nvme/host/lightnvm.c @@ -986,6 +986,9 @@ int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id) /* XXX: this is poking into PCI structures from generic code! */ struct pci_dev *pdev = to_pci_dev(ctrl->dev); + if (!strncmp((char *)id->vs, "open-channel ssd", 16)) + return 1; + /* QEMU NVMe simulator - PCI ID + Vendor specific bit */ if (pdev->vendor == PCI_VENDOR_ID_CNEX && pdev->device == PCI_DEVICE_ID_CNEX_QEMU && -- 2.9.3
