X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fnet%2Fethernet%2Fmellanox%2Fmlx4%2Fmain.c;h=936c15364739171993bfcb52598bd03f5be8afb6;hb=084c6c5013af3c62f1c344435214496f5ac999f2;hp=d711158b0d4b1ab59bb3d1cf8973e8d4936ce853;hpb=9df5a9b02fb59a4148bc93e0d20731c72aaffa5f;p=~andy%2Flinux

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index d711158b0d4..936c1536473 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -150,6 +150,8 @@ struct mlx4_port_config {
 	struct pci_dev *pdev;
 };
 
+static atomic_t pf_loading = ATOMIC_INIT(0);
+
 int mlx4_check_port_params(struct mlx4_dev *dev,
 			   enum mlx4_port_type *port_type)
 {
@@ -749,7 +751,7 @@ static void mlx4_request_modules(struct mlx4_dev *dev)
 			has_eth_port = true;
 	}
 
-	if (has_ib_port)
+	if (has_ib_port || (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
 		request_module_nowait(IB_DRV_NAME);
 	if (has_eth_port)
 		request_module_nowait(EN_DRV_NAME);
@@ -1407,6 +1409,11 @@ static int mlx4_init_slave(struct mlx4_dev *dev)
 	u32 slave_read;
 	u32 cmd_channel_ver;
 
+	if (atomic_read(&pf_loading)) {
+		mlx4_warn(dev, "PF is not ready. Deferring probe\n");
+		return -EPROBE_DEFER;
+	}
+
 	mutex_lock(&priv->cmd.slave_cmd_mutex);
 	priv->cmd.max_cmds = 1;
 	mlx4_warn(dev, "Sending reset\n");
@@ -2319,7 +2326,11 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
 
 		if (num_vfs) {
 			mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", num_vfs);
+
+			atomic_inc(&pf_loading);
 			err = pci_enable_sriov(pdev, num_vfs);
+			atomic_dec(&pf_loading);
+
 			if (err) {
 				mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d).\n",
 					 err);
@@ -2684,6 +2695,7 @@ static struct pci_driver mlx4_driver = {
 	.name		= DRV_NAME,
 	.id_table	= mlx4_pci_table,
 	.probe		= mlx4_init_one,
+	.shutdown	= mlx4_remove_one,
 	.remove		= mlx4_remove_one,
 	.err_handler    = &mlx4_err_handler,
 };