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authorSaeed Mahameed <saeedm@mellanox.com>2019-03-29 23:37:56 +0100
committerSaeed Mahameed <saeedm@mellanox.com>2019-04-02 21:49:37 +0200
commite161105e58da81fa9170921284559800fd6aa86a (patch)
treed5a8e408ca263784b486815b3ebe9e98995bb1e8
parentnet/mlx5: Move health and page alloc init to mdev_init (diff)
downloadlinux-e161105e58da81fa9170921284559800fd6aa86a.tar.xz
linux-e161105e58da81fa9170921284559800fd6aa86a.zip
net/mlx5: Function setup/teardown procedures
Function setup and teardown procedures are the basic procedure that each mlx5 pci function should perform to boot up a mlx5 device function and initialize basic communication with FW, before allocating any higher level software/firmware resources. This provides a better logical separation of mlx5 core device initialization flow and will help to seamlessly support creating different mlx5 device types such as PF, VF and SF mlx5 sub-function virtual device. This patch does not change any functionality. Signed-off-by: Vu Pham <vuhuong@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/main.c120
1 files changed, 68 insertions, 52 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 4bdcbfcc5476..7eaf6d8a8ccc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -913,44 +913,24 @@ static void mlx5_cleanup_once(struct mlx5_core_dev *dev)
mlx5_devcom_unregister_device(dev->priv.devcom);
}
-static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
+static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot)
{
struct pci_dev *pdev = dev->pdev;
int err;
- dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev);
- mutex_lock(&dev->intf_state_mutex);
- if (test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
- dev_warn(&dev->pdev->dev, "%s: interface is up, NOP\n",
- __func__);
- goto out;
- }
-
- dev_info(&pdev->dev, "firmware version: %d.%d.%d\n", fw_rev_maj(dev),
- fw_rev_min(dev), fw_rev_sub(dev));
-
- /* Only PFs hold the relevant PCIe information for this query */
- if (mlx5_core_is_pf(dev))
- pcie_print_link_status(dev->pdev);
-
- /* on load removing any previous indication of internal error, device is
- * up
- */
- dev->state = MLX5_DEVICE_STATE_UP;
-
/* wait for firmware to accept initialization segments configurations
*/
err = wait_fw_init(dev, FW_PRE_INIT_TIMEOUT_MILI);
if (err) {
dev_err(&dev->pdev->dev, "Firmware over %d MS in pre-initializing state, aborting\n",
FW_PRE_INIT_TIMEOUT_MILI);
- goto out_err;
+ return err;
}
err = mlx5_cmd_init(dev);
if (err) {
dev_err(&pdev->dev, "Failed initializing command interface, aborting\n");
- goto out_err;
+ return err;
}
err = wait_fw_init(dev, FW_INIT_TIMEOUT_MILI);
@@ -1009,14 +989,74 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
err = mlx5_query_hca_caps(dev);
if (err) {
dev_err(&pdev->dev, "query hca failed\n");
- goto err_stop_poll;
+ goto stop_health;
+ }
+
+ return 0;
+
+stop_health:
+ mlx5_stop_health_poll(dev, boot);
+reclaim_boot_pages:
+ mlx5_reclaim_startup_pages(dev);
+err_disable_hca:
+ mlx5_core_disable_hca(dev, 0);
+err_cmd_cleanup:
+ mlx5_cmd_cleanup(dev);
+
+ return err;
+}
+
+static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot)
+{
+ int err;
+
+ mlx5_stop_health_poll(dev, boot);
+ err = mlx5_cmd_teardown_hca(dev);
+ if (err) {
+ dev_err(&dev->pdev->dev, "tear_down_hca failed, skip cleanup\n");
+ return err;
+ }
+ mlx5_reclaim_startup_pages(dev);
+ mlx5_core_disable_hca(dev, 0);
+ mlx5_cmd_cleanup(dev);
+
+ return 0;
+}
+
+static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
+{
+ struct pci_dev *pdev = dev->pdev;
+ int err;
+
+ dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev);
+ mutex_lock(&dev->intf_state_mutex);
+ if (test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
+ dev_warn(&dev->pdev->dev, "%s: interface is up, NOP\n",
+ __func__);
+ goto out;
}
+ dev_info(&pdev->dev, "firmware version: %d.%d.%d\n", fw_rev_maj(dev),
+ fw_rev_min(dev), fw_rev_sub(dev));
+
+ /* Only PFs hold the relevant PCIe information for this query */
+ if (mlx5_core_is_pf(dev))
+ pcie_print_link_status(dev->pdev);
+
+ /* on load removing any previous indication of internal error, device is
+ * up
+ */
+ dev->state = MLX5_DEVICE_STATE_UP;
+
+ err = mlx5_function_setup(dev, boot);
+ if (err)
+ goto out;
+
if (boot) {
err = mlx5_init_once(dev);
if (err) {
dev_err(&pdev->dev, "sw objs init failed\n");
- goto err_stop_poll;
+ goto function_teardown;
}
}
@@ -1133,23 +1173,8 @@ err_get_uars:
if (boot)
mlx5_cleanup_once(dev);
-err_stop_poll:
- mlx5_stop_health_poll(dev, boot);
- if (mlx5_cmd_teardown_hca(dev)) {
- dev_err(&dev->pdev->dev, "tear_down_hca failed, skip cleanup\n");
- goto out_err;
- }
-
-reclaim_boot_pages:
- mlx5_reclaim_startup_pages(dev);
-
-err_disable_hca:
- mlx5_core_disable_hca(dev, 0);
-
-err_cmd_cleanup:
- mlx5_cmd_cleanup(dev);
-
-out_err:
+function_teardown:
+ mlx5_function_teardown(dev, boot);
dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
mutex_unlock(&dev->intf_state_mutex);
@@ -1190,17 +1215,8 @@ static int mlx5_unload_one(struct mlx5_core_dev *dev, bool cleanup)
mlx5_put_uars_page(dev, dev->priv.uar);
if (cleanup)
mlx5_cleanup_once(dev);
- mlx5_stop_health_poll(dev, cleanup);
-
- err = mlx5_cmd_teardown_hca(dev);
- if (err) {
- dev_err(&dev->pdev->dev, "tear_down_hca failed, skip cleanup\n");
- goto out;
- }
- mlx5_reclaim_startup_pages(dev);
- mlx5_core_disable_hca(dev, 0);
- mlx5_cmd_cleanup(dev);
+ mlx5_function_teardown(dev, cleanup);
out:
mutex_unlock(&dev->intf_state_mutex);
return err;