From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>,
netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
Shay Drory <shayd@nvidia.com>,
Eran Ben Elisha <eranbe@nvidia.com>,
Moshe Shemesh <moshe@nvidia.com>
Subject: [net-next 09/15] net/mlx5: Enable management PF initialization
Date: Tue, 10 Jan 2023 21:30:39 -0800 [thread overview]
Message-ID: <20230111053045.413133-10-saeed@kernel.org> (raw)
In-Reply-To: <20230111053045.413133-1-saeed@kernel.org>
From: Shay Drory <shayd@nvidia.com>
Enable initialization of DPU Management PF, which is a new loopback PF
designed for communication with BMC.
For now Management PF doesn't support nor require most upper layer
protocols so avoid them.
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Eran Ben Elisha <eranbe@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/dev.c | 6 ++++++
drivers/net/ethernet/mellanox/mlx5/core/ecpf.c | 8 ++++++++
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2 +-
include/linux/mlx5/driver.h | 5 +++++
4 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
index 0571e40c6ee5..5b6b0b126e52 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -59,6 +59,9 @@ bool mlx5_eth_supported(struct mlx5_core_dev *dev)
if (!IS_ENABLED(CONFIG_MLX5_CORE_EN))
return false;
+ if (mlx5_core_is_management_pf(dev))
+ return false;
+
if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return false;
@@ -198,6 +201,9 @@ bool mlx5_rdma_supported(struct mlx5_core_dev *dev)
if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
return false;
+ if (mlx5_core_is_management_pf(dev))
+ return false;
+
if (dev->priv.flags & MLX5_PRIV_FLAGS_DISABLE_IB_ADEV)
return false;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
index 464eb3a18450..b70e36025d92 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
@@ -75,6 +75,10 @@ int mlx5_ec_init(struct mlx5_core_dev *dev)
if (!mlx5_core_is_ecpf(dev))
return 0;
+ /* Management PF don't have a peer PF */
+ if (mlx5_core_is_management_pf(dev))
+ return 0;
+
return mlx5_host_pf_init(dev);
}
@@ -85,6 +89,10 @@ void mlx5_ec_cleanup(struct mlx5_core_dev *dev)
if (!mlx5_core_is_ecpf(dev))
return;
+ /* Management PF don't have a peer PF */
+ if (mlx5_core_is_management_pf(dev))
+ return;
+
mlx5_host_pf_cleanup(dev);
err = mlx5_wait_for_pages(dev, &dev->priv.host_pf_pages);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 0dfd5742c6fe..bbb6dab3b21f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1488,7 +1488,7 @@ int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *
void *hca_caps;
int err;
- if (!mlx5_core_is_ecpf(dev)) {
+ if (!mlx5_core_is_ecpf(dev) || mlx5_core_is_management_pf(dev)) {
*max_sfs = 0;
return 0;
}
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 0c4f6acf59ca..50a5780367fa 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1202,6 +1202,11 @@ static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
return dev->coredev_type == MLX5_COREDEV_VF;
}
+static inline bool mlx5_core_is_management_pf(const struct mlx5_core_dev *dev)
+{
+ return MLX5_CAP_GEN(dev, num_ports) == 1 && !MLX5_CAP_GEN(dev, native_port_num);
+}
+
static inline bool mlx5_core_is_ecpf(const struct mlx5_core_dev *dev)
{
return dev->caps.embedded_cpu;
--
2.39.0
next prev parent reply other threads:[~2023-01-11 5:39 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-11 5:30 [pull request][net-next 00/15] mlx5 updates 2023-01-10 Saeed Mahameed
2023-01-11 5:30 ` [net-next 01/15] net/mlx5: Expose shared buffer registers bits and structs Saeed Mahameed
2023-01-11 9:10 ` patchwork-bot+netdevbpf
2023-01-11 5:30 ` [net-next 02/15] net/mlx5e: Add API to query/modify SBPR and SBCM registers Saeed Mahameed
2023-01-11 5:30 ` [net-next 03/15] net/mlx5e: Update shared buffer along with device buffer changes Saeed Mahameed
2023-01-11 5:30 ` [net-next 04/15] net/mlx5e: Add Ethernet driver debugfs Saeed Mahameed
2023-01-11 5:30 ` [net-next 05/15] net/mlx5e: kTLS, Add debugfs Saeed Mahameed
2023-01-11 18:32 ` Jakub Kicinski
2023-01-11 20:20 ` Saeed Mahameed
2023-01-11 20:52 ` Jakub Kicinski
2023-01-11 5:30 ` [net-next 06/15] net/mlx5e: Add hairpin params structure Saeed Mahameed
2023-01-11 5:30 ` [net-next 07/15] net/mlx5e: Add flow steering debugfs directory Saeed Mahameed
2023-01-11 5:30 ` [net-next 08/15] net/mlx5e: Add hairpin debugfs files Saeed Mahameed
2023-01-11 18:34 ` Jakub Kicinski
2023-01-11 20:46 ` Saeed Mahameed
2023-01-11 21:03 ` Jakub Kicinski
2023-01-11 23:01 ` Saeed Mahameed
2023-01-12 3:46 ` Jakub Kicinski
2023-01-12 9:17 ` Gal Pressman
2023-01-12 22:20 ` Jakub Kicinski
2023-01-15 10:04 ` Gal Pressman
2023-01-17 18:48 ` Jakub Kicinski
2023-01-11 5:30 ` Saeed Mahameed [this message]
2023-01-11 5:30 ` [net-next 10/15] net/mlx5: Introduce and use opcode getter in command interface Saeed Mahameed
2023-01-11 5:30 ` [net-next 11/15] net/mlx5: Prevent high-rate FW commands from populating all slots Saeed Mahameed
2023-01-11 5:30 ` [net-next 12/15] net/mlx5e: Replace zero-length array with flexible-array member Saeed Mahameed
2023-01-11 5:30 ` [net-next 13/15] net/mlx5e: Replace 0-length array with flexible array Saeed Mahameed
2023-01-11 5:30 ` [net-next 14/15] net/mlx5: remove redundant ret variable Saeed Mahameed
2023-01-11 5:30 ` [net-next 15/15] net/mlx5e: Use kzalloc() in mlx5e_accel_fs_tcp_create() Saeed Mahameed
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