Re: [PATCH V4 2/3] vDPA/ifcvf: enable Intel C5000X-PL virtio-block for vDPA
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2021-05-03 08:47:39
Also in:
kvm, lkml, virtualization
On Mon, Apr 19, 2021 at 02:33:25PM +0800, Zhu Lingshan wrote:
quoted hunk ↗ jump to hunk
This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-block for vDPA. Signed-off-by: Zhu Lingshan <redacted> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Acked-by: Jason Wang <redacted> --- drivers/vdpa/ifcvf/ifcvf_base.h | 8 +++++++- drivers/vdpa/ifcvf/ifcvf_main.c | 19 ++++++++++++++++++- 2 files changed, 25 insertions(+), 2 deletions(-)diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h index 1c04cd256fa7..0111bfdeb342 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.h +++ b/drivers/vdpa/ifcvf/ifcvf_base.h@@ -15,6 +15,7 @@ #include <linux/pci_regs.h> #include <linux/vdpa.h> #include <uapi/linux/virtio_net.h> +#include <uapi/linux/virtio_blk.h> #include <uapi/linux/virtio_config.h> #include <uapi/linux/virtio_pci.h>@@ -28,7 +29,12 @@ #define C5000X_PL_SUBSYS_VENDOR_ID 0x8086 #define C5000X_PL_SUBSYS_DEVICE_ID 0x0001 -#define IFCVF_SUPPORTED_FEATURES \ +#define C5000X_PL_BLK_VENDOR_ID 0x1AF4
Come on this is just PCI_VENDOR_ID_REDHAT_QUMRANET right?
+#define C5000X_PL_BLK_DEVICE_ID 0x1001
0x1001 is a transitional blk device from virtio spec too right? Let's add these to virtio_ids.h?
+#define C5000X_PL_BLK_SUBSYS_VENDOR_ID 0x8086 +#define C5000X_PL_BLK_SUBSYS_DEVICE_ID 0x0002
VIRTIO_ID_BLOCK?
quoted hunk ↗ jump to hunk
+ +#define IFCVF_NET_SUPPORTED_FEATURES \ ((1ULL << VIRTIO_NET_F_MAC) | \ (1ULL << VIRTIO_F_ANY_LAYOUT) | \ (1ULL << VIRTIO_F_VERSION_1) | \diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index 66927ec81fa5..9a4a6df91f08 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c@@ -168,10 +168,23 @@ static struct ifcvf_hw *vdpa_to_vf(struct vdpa_device *vdpa_dev) static u64 ifcvf_vdpa_get_features(struct vdpa_device *vdpa_dev) { + struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev); struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev); + struct pci_dev *pdev = adapter->pdev; + u64 features; - features = ifcvf_get_features(vf) & IFCVF_SUPPORTED_FEATURES; + switch (vf->dev_type) { + case VIRTIO_ID_NET: + features = ifcvf_get_features(vf) & IFCVF_NET_SUPPORTED_FEATURES; + break; + case VIRTIO_ID_BLOCK: + features = ifcvf_get_features(vf); + break; + default: + features = 0; + IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", vf->dev_type); + } return features; }@@ -514,6 +527,10 @@ static struct pci_device_id ifcvf_pci_ids[] = { C5000X_PL_DEVICE_ID, C5000X_PL_SUBSYS_VENDOR_ID, C5000X_PL_SUBSYS_DEVICE_ID) }, + { PCI_DEVICE_SUB(C5000X_PL_BLK_VENDOR_ID, + C5000X_PL_BLK_DEVICE_ID, + C5000X_PL_BLK_SUBSYS_VENDOR_ID, + C5000X_PL_BLK_SUBSYS_DEVICE_ID) }, { 0 }, };-- 2.27.0