diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/sriov.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/sriov.c | 42 |
1 files changed, 16 insertions, 26 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c index 2eecb831c499..61fcfd8b39b4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c @@ -74,17 +74,11 @@ static int mlx5_device_enable_sriov(struct mlx5_core_dev *dev, int num_vfs) int err; int vf; - if (sriov->enabled_vfs) { - mlx5_core_warn(dev, - "failed to enable SRIOV on device, already enabled with %d vfs\n", - sriov->enabled_vfs); - return -EBUSY; - } - if (!MLX5_ESWITCH_MANAGER(dev)) goto enable_vfs_hca; - err = mlx5_eswitch_enable_sriov(dev->priv.eswitch, num_vfs, SRIOV_LEGACY); + mlx5_eswitch_update_num_of_vfs(dev->priv.eswitch, num_vfs); + err = mlx5_eswitch_enable(dev->priv.eswitch, MLX5_ESWITCH_LEGACY); if (err) { mlx5_core_warn(dev, "failed to enable eswitch SRIOV (%d)\n", err); @@ -99,7 +93,6 @@ enable_vfs_hca: continue; } sriov->vfs_ctx[vf].enabled = 1; - sriov->enabled_vfs++; if (MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) { err = sriov_restore_guids(dev, vf); if (err) { @@ -118,13 +111,11 @@ enable_vfs_hca: static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev) { struct mlx5_core_sriov *sriov = &dev->priv.sriov; + int num_vfs = pci_num_vf(dev->pdev); int err; int vf; - if (!sriov->enabled_vfs) - goto out; - - for (vf = 0; vf < sriov->num_vfs; vf++) { + for (vf = num_vfs - 1; vf >= 0; vf--) { if (!sriov->vfs_ctx[vf].enabled) continue; err = mlx5_core_disable_hca(dev, vf + 1); @@ -133,12 +124,10 @@ static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev) continue; } sriov->vfs_ctx[vf].enabled = 0; - sriov->enabled_vfs--; } -out: if (MLX5_ESWITCH_MANAGER(dev)) - mlx5_eswitch_disable_sriov(dev->priv.eswitch); + mlx5_eswitch_disable(dev->priv.eswitch); if (mlx5_wait_for_pages(dev, &dev->priv.vfs_pages)) mlx5_core_warn(dev, "timeout reclaiming VFs pages\n"); @@ -191,13 +180,11 @@ int mlx5_core_sriov_configure(struct pci_dev *pdev, int num_vfs) int mlx5_sriov_attach(struct mlx5_core_dev *dev) { - struct mlx5_core_sriov *sriov = &dev->priv.sriov; - - if (!mlx5_core_is_pf(dev) || !sriov->num_vfs) + if (!mlx5_core_is_pf(dev) || !pci_num_vf(dev->pdev)) return 0; /* If sriov VFs exist in PCI level, enable them in device level */ - return mlx5_device_enable_sriov(dev, sriov->num_vfs); + return mlx5_device_enable_sriov(dev, pci_num_vf(dev->pdev)); } void mlx5_sriov_detach(struct mlx5_core_dev *dev) @@ -210,22 +197,25 @@ void mlx5_sriov_detach(struct mlx5_core_dev *dev) static u16 mlx5_get_max_vfs(struct mlx5_core_dev *dev) { - u32 out[MLX5_ST_SZ_DW(query_esw_functions_out)] = {}; u16 host_total_vfs; - int err; + const u32 *out; if (mlx5_core_is_ecpf_esw_manager(dev)) { - err = mlx5_esw_query_functions(dev, out, sizeof(out)); - host_total_vfs = MLX5_GET(query_esw_functions_out, out, - host_params_context.host_total_vfs); + out = mlx5_esw_query_functions(dev); /* Old FW doesn't support getting total_vfs from esw func * but supports getting it from pci_sriov. */ - if (!err && host_total_vfs) + if (IS_ERR(out)) + goto done; + host_total_vfs = MLX5_GET(query_esw_functions_out, out, + host_params_context.host_total_vfs); + kvfree(out); + if (host_total_vfs) return host_total_vfs; } +done: return pci_sriov_get_totalvfs(dev->pdev); } |