mirror of
https://github.com/torvalds/linux.git
synced 2024-12-03 17:41:22 +00:00
abdf31bd91
Our driver sets a mac if the HW is 00:..:00 so we need to be sure to
advertise VIRTIO_NET_F_MAC even if the HW doesn't. We also need to be
sure that virtio_net sees the VIRTIO_NET_F_MAC and doesn't rewrite the
mac address that a user may have set with the vdpa utility.
After reading the hw_feature bits, add the VIRTIO_NET_F_MAC to the driver's
supported_features and use that for reporting what is available. If the
HW is not advertising it, be sure to strip the VIRTIO_NET_F_MAC before
finishing the feature negotiation. If the user specifies a device_features
bitpattern in the vdpa utility without the VIRTIO_NET_F_MAC set, then
don't set the mac.
Fixes: 151cc834f3 ("pds_vdpa: add support for vdpa and vdpamgmt interfaces")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Message-Id: <20230711042437.69381-3-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* Copyright(c) 2023 Advanced Micro Devices, Inc */
|
|
|
|
#ifndef _VDPA_DEV_H_
|
|
#define _VDPA_DEV_H_
|
|
|
|
#include <linux/pci.h>
|
|
#include <linux/vdpa.h>
|
|
|
|
struct pds_vdpa_vq_info {
|
|
bool ready;
|
|
u64 desc_addr;
|
|
u64 avail_addr;
|
|
u64 used_addr;
|
|
u32 q_len;
|
|
u16 qid;
|
|
int irq;
|
|
char irq_name[32];
|
|
|
|
void __iomem *notify;
|
|
dma_addr_t notify_pa;
|
|
|
|
u64 doorbell;
|
|
u16 avail_idx;
|
|
u16 used_idx;
|
|
|
|
struct vdpa_callback event_cb;
|
|
struct pds_vdpa_device *pdsv;
|
|
};
|
|
|
|
#define PDS_VDPA_MAX_QUEUES 65
|
|
#define PDS_VDPA_MAX_QLEN 32768
|
|
struct pds_vdpa_device {
|
|
struct vdpa_device vdpa_dev;
|
|
struct pds_vdpa_aux *vdpa_aux;
|
|
|
|
struct pds_vdpa_vq_info vqs[PDS_VDPA_MAX_QUEUES];
|
|
u64 supported_features; /* supported device features */
|
|
u64 negotiated_features; /* negotiated features */
|
|
u8 vdpa_index; /* rsvd for future subdevice use */
|
|
u8 num_vqs; /* num vqs in use */
|
|
u8 mac[ETH_ALEN]; /* mac selected when the device was added */
|
|
struct vdpa_callback config_cb;
|
|
struct notifier_block nb;
|
|
};
|
|
|
|
#define PDS_VDPA_PACKED_INVERT_IDX 0x8000
|
|
|
|
int pds_vdpa_get_mgmt_info(struct pds_vdpa_aux *vdpa_aux);
|
|
#endif /* _VDPA_DEV_H_ */
|