This is a note to let you know that I've just added the patch titled
net/mlx5: Split function_setup() to enable and open functions
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mlx5-split-function_setup-to-enable-and-open-fun.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 331e48f2754450f818f21a4e80f13c1a23b771bd
Author: Shay Drory <shayd@xxxxxxxxxx>
Date: Wed May 3 12:08:48 2023 +0300
net/mlx5: Split function_setup() to enable and open functions
[ Upstream commit 2059cf51f318681a4cdd3eb1a01a2d62b6a9c442 ]
mlx5_cmd_init_hca() is taking ~0.2 seconds. In case of a user who
desire to disable some of the SF aux devices, and with large scale-1K
SFs for example, this user will waste more than 3 minutes on
mlx5_cmd_init_hca() which isn't needed at this stage.
Downstream patch will change SFs which are probe over the E-switch,
local SFs, to be probed without any aux dev. In order to support this,
split function_setup() to avoid executing mlx5_cmd_init_hca().
Signed-off-by: Shay Drory <shayd@xxxxxxxxxx>
Reviewed-by: Moshe Shemesh <moshe@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Stable-dep-of: c8b3f38d2dae ("net/mlx5: Always stop health timer during driver removal")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 6ab0642e9de78..fe0a78c29438b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1093,7 +1093,7 @@ static void mlx5_cleanup_once(struct mlx5_core_dev *dev)
mlx5_devcom_unregister_device(dev->priv.devcom);
}
-static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot, u64 timeout)
+static int mlx5_function_enable(struct mlx5_core_dev *dev, bool boot, u64 timeout)
{
int err;
@@ -1158,28 +1158,56 @@ static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot, u64 timeout
goto reclaim_boot_pages;
}
+ return 0;
+
+reclaim_boot_pages:
+ mlx5_reclaim_startup_pages(dev);
+err_disable_hca:
+ mlx5_core_disable_hca(dev, 0);
+stop_health_poll:
+ mlx5_stop_health_poll(dev, boot);
+err_cmd_cleanup:
+ mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
+ mlx5_cmd_cleanup(dev);
+
+ return err;
+}
+
+static void mlx5_function_disable(struct mlx5_core_dev *dev, bool boot)
+{
+ mlx5_reclaim_startup_pages(dev);
+ mlx5_core_disable_hca(dev, 0);
+ mlx5_stop_health_poll(dev, boot);
+ mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
+ mlx5_cmd_cleanup(dev);
+}
+
+static int mlx5_function_open(struct mlx5_core_dev *dev)
+{
+ int err;
+
err = set_hca_ctrl(dev);
if (err) {
mlx5_core_err(dev, "set_hca_ctrl failed\n");
- goto reclaim_boot_pages;
+ return err;
}
err = set_hca_cap(dev);
if (err) {
mlx5_core_err(dev, "set_hca_cap failed\n");
- goto reclaim_boot_pages;
+ return err;
}
err = mlx5_satisfy_startup_pages(dev, 0);
if (err) {
mlx5_core_err(dev, "failed to allocate init pages\n");
- goto reclaim_boot_pages;
+ return err;
}
err = mlx5_cmd_init_hca(dev, sw_owner_id);
if (err) {
mlx5_core_err(dev, "init hca failed\n");
- goto reclaim_boot_pages;
+ return err;
}
mlx5_set_driver_version(dev);
@@ -1187,26 +1215,13 @@ static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot, u64 timeout
err = mlx5_query_hca_caps(dev);
if (err) {
mlx5_core_err(dev, "query hca failed\n");
- goto reclaim_boot_pages;
+ return err;
}
mlx5_start_health_fw_log_up(dev);
-
return 0;
-
-reclaim_boot_pages:
- mlx5_reclaim_startup_pages(dev);
-err_disable_hca:
- mlx5_core_disable_hca(dev, 0);
-stop_health_poll:
- mlx5_stop_health_poll(dev, boot);
-err_cmd_cleanup:
- mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
- mlx5_cmd_cleanup(dev);
-
- return err;
}
-static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot)
+static int mlx5_function_close(struct mlx5_core_dev *dev)
{
int err;
@@ -1215,15 +1230,33 @@ static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot)
mlx5_core_err(dev, "tear_down_hca failed, skip cleanup\n");
return err;
}
- mlx5_reclaim_startup_pages(dev);
- mlx5_core_disable_hca(dev, 0);
- mlx5_stop_health_poll(dev, boot);
- mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
- mlx5_cmd_cleanup(dev);
return 0;
}
+static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot, u64 timeout)
+{
+ int err;
+
+ err = mlx5_function_enable(dev, boot, timeout);
+ if (err)
+ return err;
+
+ err = mlx5_function_open(dev);
+ if (err)
+ mlx5_function_disable(dev, boot);
+ return err;
+}
+
+static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot)
+{
+ int err = mlx5_function_close(dev);
+
+ if (!err)
+ mlx5_function_disable(dev, boot);
+ return err;
+}
+
static int mlx5_load(struct mlx5_core_dev *dev)
{
int err;
