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vDPA/ifcvf: implement new accessors for vq_state

Browse Source 
This commit implements a better layout of the
live migration bar, therefore the accessors for virtqueue
state have been refactored.

This commit also add a comment to the probing-ids list,
indicating this driver drives F2000X-PL virtio-net

Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20230612151420.1019504-4-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Zhu Lingshan 2023-06-12 23:14:20 +08:00 committed by Michael S. Tsirkin
parent ae904d9ce2
commit 4cf8b6d051
3 changed files with 16 additions and 32 deletions
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19
drivers/vdpa/ifcvf/ifcvf_base.c
View File

@ -328,30 +328,19 @@ void ifcvf_set_driver_features(struct ifcvf_hw *hw, u64 features)
u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid)
{
struct ifcvf_lm_cfg __iomem *ifcvf_lm;
void __iomem *avail_idx_addr;
struct ifcvf_lm_cfg __iomem *lm_cfg = hw->lm_cfg;
u16 last_avail_idx;
u32 q_pair_id;
ifcvf_lm = (struct ifcvf_lm_cfg __iomem *)hw->lm_cfg;
q_pair_id = qid / 2;
avail_idx_addr = &ifcvf_lm->vring_lm_cfg[q_pair_id].idx_addr[qid % 2];
last_avail_idx = vp_ioread16(avail_idx_addr);
last_avail_idx = vp_ioread16(&lm_cfg->vq_state_region + qid * 2);
return last_avail_idx;
}
int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num)
{
struct ifcvf_lm_cfg __iomem *ifcvf_lm;
void __iomem *avail_idx_addr;
u32 q_pair_id;
struct ifcvf_lm_cfg __iomem *lm_cfg = hw->lm_cfg;
ifcvf_lm = (struct ifcvf_lm_cfg __iomem *)hw->lm_cfg;
q_pair_id = qid / 2;
avail_idx_addr = &ifcvf_lm->vring_lm_cfg[q_pair_id].idx_addr[qid % 2];
hw->vring[qid].last_avail_idx = num;
vp_iowrite16(num, avail_idx_addr);
vp_iowrite16(num, &lm_cfg->vq_state_region + qid * 2);
return 0;
}

25
drivers/vdpa/ifcvf/ifcvf_base.h
View File

@ -24,14 +24,9 @@
#define N3000_DEVICE_ID 0x1041
#define N3000_SUBSYS_DEVICE_ID 0x001A
/* Max 8 data queue pairs(16 queues) and one control vq for now. */
#define IFCVF_MAX_QUEUES 17
#define IFCVF_QUEUE_ALIGNMENT PAGE_SIZE
#define IFCVF_PCI_MAX_RESOURCE 6
#define IFCVF_LM_CFG_SIZE 0x40
#define IFCVF_LM_RING_STATE_OFFSET 0x20
#define IFCVF_LM_BAR 4
#define IFCVF_ERR(pdev, fmt, ...) dev_err(&pdev->dev, fmt, ##__VA_ARGS__)
@ -54,10 +49,18 @@ struct vring_info {
char msix_name[256];
};
struct ifcvf_lm_cfg {
__le64 control;
__le64 status;
__le64 lm_mem_log_start_addr;
__le64 lm_mem_log_end_addr;
__le16 vq_state_region;
};
struct ifcvf_hw {
u8 __iomem *isr;
/* Live migration */
u8 __iomem *lm_cfg;
struct ifcvf_lm_cfg __iomem *lm_cfg;
/* Notification bar number */
u8 notify_bar;
u8 msix_vector_status;
@ -92,16 +95,6 @@ struct ifcvf_adapter {
struct ifcvf_hw *vf;
};
struct ifcvf_vring_lm_cfg {
u32 idx_addr[2];
u8 reserved[IFCVF_LM_CFG_SIZE - 8];
};
struct ifcvf_lm_cfg {
u8 reserved[IFCVF_LM_RING_STATE_OFFSET];
struct ifcvf_vring_lm_cfg vring_lm_cfg[IFCVF_MAX_QUEUES];
};
struct ifcvf_vdpa_mgmt_dev {
struct vdpa_mgmt_dev mdev;
struct ifcvf_hw vf;

4
drivers/vdpa/ifcvf/ifcvf_main.c
View File

@ -853,7 +853,9 @@ static struct pci_device_id ifcvf_pci_ids[] = {
N3000_DEVICE_ID,
PCI_VENDOR_ID_INTEL,
N3000_SUBSYS_DEVICE_ID) },
/* C5000X-PL network device */
/* C5000X-PL network device
* F2000X-PL network device
*/
{ PCI_DEVICE_SUB(PCI_VENDOR_ID_REDHAT_QUMRANET,
VIRTIO_TRANS_ID_NET,
PCI_VENDOR_ID_INTEL,