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path: root/drivers/vdpa/mlx5
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Diffstat (limited to 'drivers/vdpa/mlx5')
-rw-r--r--drivers/vdpa/mlx5/net/mlx5_vnet.c70
1 files changed, 39 insertions, 31 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 9df69d5efe8c..74264e590695 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -16,19 +16,19 @@
#define to_mvdev(__vdev) container_of((__vdev), struct mlx5_vdpa_dev, vdev)
#define VALID_FEATURES_MASK \
- (BIT(VIRTIO_NET_F_CSUM) | BIT(VIRTIO_NET_F_GUEST_CSUM) | \
- BIT(VIRTIO_NET_F_CTRL_GUEST_OFFLOADS) | BIT(VIRTIO_NET_F_MTU) | BIT(VIRTIO_NET_F_MAC) | \
- BIT(VIRTIO_NET_F_GUEST_TSO4) | BIT(VIRTIO_NET_F_GUEST_TSO6) | \
- BIT(VIRTIO_NET_F_GUEST_ECN) | BIT(VIRTIO_NET_F_GUEST_UFO) | BIT(VIRTIO_NET_F_HOST_TSO4) | \
- BIT(VIRTIO_NET_F_HOST_TSO6) | BIT(VIRTIO_NET_F_HOST_ECN) | BIT(VIRTIO_NET_F_HOST_UFO) | \
- BIT(VIRTIO_NET_F_MRG_RXBUF) | BIT(VIRTIO_NET_F_STATUS) | BIT(VIRTIO_NET_F_CTRL_VQ) | \
- BIT(VIRTIO_NET_F_CTRL_RX) | BIT(VIRTIO_NET_F_CTRL_VLAN) | \
- BIT(VIRTIO_NET_F_CTRL_RX_EXTRA) | BIT(VIRTIO_NET_F_GUEST_ANNOUNCE) | \
- BIT(VIRTIO_NET_F_MQ) | BIT(VIRTIO_NET_F_CTRL_MAC_ADDR) | BIT(VIRTIO_NET_F_HASH_REPORT) | \
- BIT(VIRTIO_NET_F_RSS) | BIT(VIRTIO_NET_F_RSC_EXT) | BIT(VIRTIO_NET_F_STANDBY) | \
- BIT(VIRTIO_NET_F_SPEED_DUPLEX) | BIT(VIRTIO_F_NOTIFY_ON_EMPTY) | \
- BIT(VIRTIO_F_ANY_LAYOUT) | BIT(VIRTIO_F_VERSION_1) | BIT(VIRTIO_F_ACCESS_PLATFORM) | \
- BIT(VIRTIO_F_RING_PACKED) | BIT(VIRTIO_F_ORDER_PLATFORM) | BIT(VIRTIO_F_SR_IOV))
+ (BIT_ULL(VIRTIO_NET_F_CSUM) | BIT_ULL(VIRTIO_NET_F_GUEST_CSUM) | \
+ BIT_ULL(VIRTIO_NET_F_CTRL_GUEST_OFFLOADS) | BIT_ULL(VIRTIO_NET_F_MTU) | BIT_ULL(VIRTIO_NET_F_MAC) | \
+ BIT_ULL(VIRTIO_NET_F_GUEST_TSO4) | BIT_ULL(VIRTIO_NET_F_GUEST_TSO6) | \
+ BIT_ULL(VIRTIO_NET_F_GUEST_ECN) | BIT_ULL(VIRTIO_NET_F_GUEST_UFO) | BIT_ULL(VIRTIO_NET_F_HOST_TSO4) | \
+ BIT_ULL(VIRTIO_NET_F_HOST_TSO6) | BIT_ULL(VIRTIO_NET_F_HOST_ECN) | BIT_ULL(VIRTIO_NET_F_HOST_UFO) | \
+ BIT_ULL(VIRTIO_NET_F_MRG_RXBUF) | BIT_ULL(VIRTIO_NET_F_STATUS) | BIT_ULL(VIRTIO_NET_F_CTRL_VQ) | \
+ BIT_ULL(VIRTIO_NET_F_CTRL_RX) | BIT_ULL(VIRTIO_NET_F_CTRL_VLAN) | \
+ BIT_ULL(VIRTIO_NET_F_CTRL_RX_EXTRA) | BIT_ULL(VIRTIO_NET_F_GUEST_ANNOUNCE) | \
+ BIT_ULL(VIRTIO_NET_F_MQ) | BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR) | BIT_ULL(VIRTIO_NET_F_HASH_REPORT) | \
+ BIT_ULL(VIRTIO_NET_F_RSS) | BIT_ULL(VIRTIO_NET_F_RSC_EXT) | BIT_ULL(VIRTIO_NET_F_STANDBY) | \
+ BIT_ULL(VIRTIO_NET_F_SPEED_DUPLEX) | BIT_ULL(VIRTIO_F_NOTIFY_ON_EMPTY) | \
+ BIT_ULL(VIRTIO_F_ANY_LAYOUT) | BIT_ULL(VIRTIO_F_VERSION_1) | BIT_ULL(VIRTIO_F_ACCESS_PLATFORM) | \
+ BIT_ULL(VIRTIO_F_RING_PACKED) | BIT_ULL(VIRTIO_F_ORDER_PLATFORM) | BIT_ULL(VIRTIO_F_SR_IOV))
#define VALID_STATUS_MASK \
(VIRTIO_CONFIG_S_ACKNOWLEDGE | VIRTIO_CONFIG_S_DRIVER | VIRTIO_CONFIG_S_DRIVER_OK | \
@@ -149,7 +149,7 @@ static bool mlx5_vdpa_debug;
#define MLX5_LOG_VIO_FLAG(_feature) \
do { \
- if (features & BIT(_feature)) \
+ if (features & BIT_ULL(_feature)) \
mlx5_vdpa_info(mvdev, "%s\n", #_feature); \
} while (0)
@@ -750,10 +750,10 @@ static bool vq_is_tx(u16 idx)
static u16 get_features_12_3(u64 features)
{
- return (!!(features & BIT(VIRTIO_NET_F_HOST_TSO4)) << 9) |
- (!!(features & BIT(VIRTIO_NET_F_HOST_TSO6)) << 8) |
- (!!(features & BIT(VIRTIO_NET_F_CSUM)) << 7) |
- (!!(features & BIT(VIRTIO_NET_F_GUEST_CSUM)) << 6);
+ return (!!(features & BIT_ULL(VIRTIO_NET_F_HOST_TSO4)) << 9) |
+ (!!(features & BIT_ULL(VIRTIO_NET_F_HOST_TSO6)) << 8) |
+ (!!(features & BIT_ULL(VIRTIO_NET_F_CSUM)) << 7) |
+ (!!(features & BIT_ULL(VIRTIO_NET_F_GUEST_CSUM)) << 6);
}
static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *mvq)
@@ -1133,15 +1133,17 @@ static void suspend_vq(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *m
if (!mvq->initialized)
return;
- if (query_virtqueue(ndev, mvq, &attr)) {
- mlx5_vdpa_warn(&ndev->mvdev, "failed to query virtqueue\n");
- return;
- }
if (mvq->fw_state != MLX5_VIRTIO_NET_Q_OBJECT_STATE_RDY)
return;
if (modify_virtqueue(ndev, mvq, MLX5_VIRTIO_NET_Q_OBJECT_STATE_SUSPEND))
mlx5_vdpa_warn(&ndev->mvdev, "modify to suspend failed\n");
+
+ if (query_virtqueue(ndev, mvq, &attr)) {
+ mlx5_vdpa_warn(&ndev->mvdev, "failed to query virtqueue\n");
+ return;
+ }
+ mvq->avail_idx = attr.available_index;
}
static void suspend_vqs(struct mlx5_vdpa_net *ndev)
@@ -1411,8 +1413,14 @@ static int mlx5_vdpa_get_vq_state(struct vdpa_device *vdev, u16 idx, struct vdpa
struct mlx5_virtq_attr attr;
int err;
- if (!mvq->initialized)
- return -EAGAIN;
+ /* If the virtq object was destroyed, use the value saved at
+ * the last minute of suspend_vq. This caters for userspace
+ * that cares about emulating the index after vq is stopped.
+ */
+ if (!mvq->initialized) {
+ state->avail_index = mvq->avail_idx;
+ return 0;
+ }
err = query_virtqueue(ndev, mvq, &attr);
if (err) {
@@ -1439,13 +1447,13 @@ static u64 mlx_to_vritio_features(u16 dev_features)
u64 result = 0;
if (dev_features & MLX5_VIRTIO_NET_F_GUEST_CSUM)
- result |= BIT(VIRTIO_NET_F_GUEST_CSUM);
+ result |= BIT_ULL(VIRTIO_NET_F_GUEST_CSUM);
if (dev_features & MLX5_VIRTIO_NET_F_CSUM)
- result |= BIT(VIRTIO_NET_F_CSUM);
+ result |= BIT_ULL(VIRTIO_NET_F_CSUM);
if (dev_features & MLX5_VIRTIO_NET_F_HOST_TSO6)
- result |= BIT(VIRTIO_NET_F_HOST_TSO6);
+ result |= BIT_ULL(VIRTIO_NET_F_HOST_TSO6);
if (dev_features & MLX5_VIRTIO_NET_F_HOST_TSO4)
- result |= BIT(VIRTIO_NET_F_HOST_TSO4);
+ result |= BIT_ULL(VIRTIO_NET_F_HOST_TSO4);
return result;
}
@@ -1459,15 +1467,15 @@ static u64 mlx5_vdpa_get_features(struct vdpa_device *vdev)
dev_features = MLX5_CAP_DEV_VDPA_EMULATION(mvdev->mdev, device_features_bits_mask);
ndev->mvdev.mlx_features = mlx_to_vritio_features(dev_features);
if (MLX5_CAP_DEV_VDPA_EMULATION(mvdev->mdev, virtio_version_1_0))
- ndev->mvdev.mlx_features |= BIT(VIRTIO_F_VERSION_1);
- ndev->mvdev.mlx_features |= BIT(VIRTIO_F_ACCESS_PLATFORM);
+ ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_F_VERSION_1);
+ ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_F_ACCESS_PLATFORM);
print_features(mvdev, ndev->mvdev.mlx_features, false);
return ndev->mvdev.mlx_features;
}
static int verify_min_features(struct mlx5_vdpa_dev *mvdev, u64 features)
{
- if (!(features & BIT(VIRTIO_F_ACCESS_PLATFORM)))
+ if (!(features & BIT_ULL(VIRTIO_F_ACCESS_PLATFORM)))
return -EOPNOTSUPP;
return 0;
generated by cgit (git 2.34.1) at 2025-02-24 14:33:00 +0000