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Date: Fri, 29 Mar 2019 15:37:57 -0700
From: Saeed Mahameed <saeedm@...lanox.com>
To: saeed@...lanox.com, Leon Romanovsky <leonro@...lanox.com>
Cc: netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
Saeed Mahameed <saeedm@...lanox.com>,
Vu Pham <vuhuong@...lanox.com>
Subject: [PATCH mlx5-next 07/14] net/mlx5: Break load_one into three stages
Using foundation from previous patches to factor mlx5_load_one flow
into three stages:
1. mlx5_function_setup() from previous patch to setup function
2. mlx5_init_once() from previous patch to init software objects
according to hw caps
3. New mlx5_load() to load mlx5 components
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@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
.../net/ethernet/mellanox/mlx5/core/main.c | 148 +++++++++---------
1 file changed, 77 insertions(+), 71 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index d5a8ec8f587d..bdfc0429ee6e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -925,6 +925,13 @@ static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot)
struct pci_dev *pdev = dev->pdev;
int err;
+ 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);
+
/* wait for firmware to accept initialization segments configurations
*/
err = wait_fw_init(dev, FW_PRE_INIT_TIMEOUT_MILI);
@@ -1030,48 +1037,16 @@ static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot)
return 0;
}
-static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
+static int mlx5_load(struct mlx5_core_dev *dev)
{
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 function_teardown;
- }
- }
-
dev->priv.uar = mlx5_get_uars_page(dev);
if (IS_ERR(dev->priv.uar)) {
dev_err(&pdev->dev, "Failed allocating uar, aborting\n");
err = PTR_ERR(dev->priv.uar);
- goto err_get_uars;
+ return err;
}
mlx5_events_start(dev);
@@ -1131,55 +1106,95 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
goto err_ec;
}
- if (mlx5_device_registered(dev)) {
- mlx5_attach_device(dev);
- } else {
- err = mlx5_register_device(dev);
- if (err) {
- dev_err(&pdev->dev, "mlx5_register_device failed %d\n", err);
- goto err_reg_dev;
- }
- }
-
- set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
-out:
- mutex_unlock(&dev->intf_state_mutex);
-
return 0;
-err_reg_dev:
- mlx5_ec_cleanup(dev);
-
err_ec:
mlx5_sriov_detach(dev);
-
err_sriov:
mlx5_cleanup_fs(dev);
-
err_fs:
mlx5_accel_tls_cleanup(dev);
-
err_tls_start:
mlx5_accel_ipsec_cleanup(dev);
-
err_ipsec_start:
mlx5_fpga_device_stop(dev);
-
err_fpga_start:
mlx5_fw_tracer_cleanup(dev->tracer);
-
err_fw_tracer:
mlx5_eq_table_destroy(dev);
-
err_eq_table:
mlx5_pagealloc_stop(dev);
mlx5_events_stop(dev);
mlx5_put_uars_page(dev, dev->priv.uar);
+ return err;
+}
+
+static void mlx5_unload(struct mlx5_core_dev *dev)
+{
+ mlx5_ec_cleanup(dev);
+ mlx5_sriov_detach(dev);
+ mlx5_cleanup_fs(dev);
+ mlx5_accel_ipsec_cleanup(dev);
+ mlx5_accel_tls_cleanup(dev);
+ mlx5_fpga_device_stop(dev);
+ mlx5_fw_tracer_cleanup(dev->tracer);
+ mlx5_eq_table_destroy(dev);
+ mlx5_pagealloc_stop(dev);
+ mlx5_events_stop(dev);
+ mlx5_put_uars_page(dev, dev->priv.uar);
+}
+
+static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
+{
+ struct pci_dev *pdev = dev->pdev;
+ int err = 0;
+
+ 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)) {
+ mlx5_core_warn(dev, "interface is up, NOP\n");
+ goto out;
+ }
+ /* remove any previous indication of internal error */
+ 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 function_teardown;
+ }
+ }
+
+ err = mlx5_load(dev);
+ if (err)
+ goto err_load;
+
+ if (mlx5_device_registered(dev)) {
+ mlx5_attach_device(dev);
+ } else {
+ err = mlx5_register_device(dev);
+ if (err) {
+ dev_err(&pdev->dev, "register device failed %d\n", err);
+ goto err_reg_dev;
+ }
+ }
+
+ set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
+out:
+ mutex_unlock(&dev->intf_state_mutex);
-err_get_uars:
+ return err;
+
+err_reg_dev:
+ mlx5_unload(dev);
+err_load:
if (boot)
mlx5_cleanup_once(dev);
-
function_teardown:
mlx5_function_teardown(dev, boot);
dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
@@ -1209,17 +1224,8 @@ static int mlx5_unload_one(struct mlx5_core_dev *dev, bool cleanup)
if (mlx5_device_registered(dev))
mlx5_detach_device(dev);
- mlx5_ec_cleanup(dev);
- mlx5_sriov_detach(dev);
- mlx5_cleanup_fs(dev);
- mlx5_accel_ipsec_cleanup(dev);
- mlx5_accel_tls_cleanup(dev);
- mlx5_fpga_device_stop(dev);
- mlx5_fw_tracer_cleanup(dev->tracer);
- mlx5_eq_table_destroy(dev);
- mlx5_pagealloc_stop(dev);
- mlx5_events_stop(dev);
- mlx5_put_uars_page(dev, dev->priv.uar);
+ mlx5_unload(dev);
+
if (cleanup)
mlx5_cleanup_once(dev);
--
2.20.1
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