[RFC,18/21] vdpa/mlx5: use HCA attributes from context device
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Commit Message
Use HCA attributes from context device structure, instead of query it
for itself.
Signed-off-by: Michael Baum <michaelba@nvidia.com>
---
drivers/vdpa/mlx5/mlx5_vdpa.c | 28 ++++++++--------------------
1 file changed, 8 insertions(+), 20 deletions(-)
@@ -506,36 +506,24 @@ static int
mlx5_vdpa_dev_probe(struct mlx5_common_device *dev)
{
struct mlx5_vdpa_priv *priv = NULL;
- struct mlx5_hca_attr attr;
- int ret;
+ struct mlx5_hca_attr *attr = &dev->ctx.hca_attr;
- ret = mlx5_devx_cmd_query_hca_attr(dev->ctx.ctx, &attr);
- if (ret) {
- DRV_LOG(ERR, "Unable to read HCA capabilities.");
- rte_errno = ENOTSUP;
- return -rte_errno;
- } else if (!attr.vdpa.valid || !attr.vdpa.max_num_virtio_queues) {
- DRV_LOG(ERR, "Not enough capabilities to support vdpa, maybe "
- "old FW/OFED version?");
- rte_errno = ENOTSUP;
- return -rte_errno;
- }
- if (!attr.vdpa.queue_counters_valid)
+ if (!attr->vdpa.queue_counters_valid)
DRV_LOG(DEBUG, "No capability to support virtq statistics.");
priv = rte_zmalloc("mlx5 vDPA device private", sizeof(*priv) +
sizeof(struct mlx5_vdpa_virtq) *
- attr.vdpa.max_num_virtio_queues * 2,
+ attr->vdpa.max_num_virtio_queues * 2,
RTE_CACHE_LINE_SIZE);
if (!priv) {
DRV_LOG(ERR, "Failed to allocate private memory.");
rte_errno = ENOMEM;
return -rte_errno;
}
- priv->caps = attr.vdpa;
- priv->log_max_rqt_size = attr.log_max_rqt_size;
- priv->num_lag_ports = attr.num_lag_ports;
- priv->qp_ts_format = attr.qp_ts_format;
- if (attr.num_lag_ports == 0)
+ priv->caps = attr->vdpa;
+ priv->log_max_rqt_size = attr->log_max_rqt_size;
+ priv->num_lag_ports = attr->num_lag_ports;
+ priv->qp_ts_format = attr->qp_ts_format;
+ if (attr->num_lag_ports == 0)
priv->num_lag_ports = 1;
priv->dev_ctx = &dev->ctx;
priv->var = mlx5_glue->dv_alloc_var(priv->dev_ctx->ctx, 0);