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Message-ID: <ZZfySfG4VClzDKTr@nanopsycho>
Date: Fri, 5 Jan 2024 13:12:57 +0100
From: Jiri Pirko <jiri@...nulli.us>
To: Saeed Mahameed <saeed@...nel.org>
Cc: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>,
Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>
Subject: Re: [net-next 07/15] net/mlx5: SD, Add informative prints in kernel
log
Thu, Dec 21, 2023 at 01:57:13AM CET, saeed@...nel.org wrote:
>From: Tariq Toukan <tariqt@...dia.com>
>
>Print to kernel log when an SD group moves from/to ready state.
>
>Signed-off-by: Tariq Toukan <tariqt@...dia.com>
>Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
>---
> .../net/ethernet/mellanox/mlx5/core/lib/sd.c | 21 +++++++++++++++++++
> 1 file changed, 21 insertions(+)
>
>diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c
>index 3309f21d892e..f68942277c62 100644
>--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c
>+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c
>@@ -373,6 +373,21 @@ static void sd_cmd_unset_secondary(struct mlx5_core_dev *secondary)
> mlx5_fs_cmd_set_l2table_entry_silent(secondary, 0);
> }
>
>+static void sd_print_group(struct mlx5_core_dev *primary)
>+{
>+ struct mlx5_sd *sd = mlx5_get_sd(primary);
>+ struct mlx5_core_dev *pos;
>+ int i;
>+
>+ sd_info(primary, "group id %#x, primary %s, vhca %u\n",
>+ sd->group_id, pci_name(primary->pdev),
>+ MLX5_CAP_GEN(primary, vhca_id));
>+ mlx5_sd_for_each_secondary(i, primary, pos)
>+ sd_info(primary, "group id %#x, secondary#%d %s, vhca %u\n",
>+ sd->group_id, i - 1, pci_name(pos->pdev),
>+ MLX5_CAP_GEN(pos, vhca_id));
>+}
>+
> int mlx5_sd_init(struct mlx5_core_dev *dev)
> {
> struct mlx5_core_dev *primary, *pos, *to;
>@@ -410,6 +425,10 @@ int mlx5_sd_init(struct mlx5_core_dev *dev)
> goto err_unset_secondaries;
> }
>
>+ sd_info(primary, "group id %#x, size %d, combined\n",
>+ sd->group_id, mlx5_devcom_comp_get_size(sd->devcom));
Can't you rather expose this over sysfs or debugfs? I mean, dmesg print
does not seem like a good idea.
>+ sd_print_group(primary);
>+
> return 0;
>
> err_unset_secondaries:
>@@ -440,6 +459,8 @@ void mlx5_sd_cleanup(struct mlx5_core_dev *dev)
> mlx5_sd_for_each_secondary(i, primary, pos)
> sd_cmd_unset_secondary(pos);
> sd_cmd_unset_primary(primary);
>+
>+ sd_info(primary, "group id %#x, uncombined\n", sd->group_id);
> out:
> sd_unregister(dev);
> sd_cleanup(dev);
>--
>2.43.0
>
>
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