From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@nvidia.com>
Cc: Leon Romanovsky <leonro@nvidia.com>,
Jakub Kicinski <kuba@kernel.org>,
Jason Wang <jasowang@redhat.com>,
linux-rdma@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
netdev@vger.kernel.org, Parav Pandit <parav@nvidia.com>,
Roi Dayan <roid@nvidia.com>, Saeed Mahameed <saeedm@nvidia.com>,
virtualization@lists.linux-foundation.org,
alsa-devel@alsa-project.org, tiwai@suse.de, broonie@kernel.org,
"David S . Miller" <davem@davemloft.net>,
ranjani.sridharan@linux.intel.com,
pierre-louis.bossart@linux.intel.com, fred.oh@linux.intel.com,
shiraz.saleem@intel.com, dan.j.williams@intel.com,
kiran.patil@intel.com, linux-kernel@vger.kernel.org
Subject: [PATCH mlx5-next 07/11] net/mlx5e: Connect ethernet part to auxiliary bus
Date: Mon, 26 Oct 2020 13:18:45 +0200 [thread overview]
Message-ID: <20201026111849.1035786-8-leon@kernel.org> (raw)
In-Reply-To: <20201026111849.1035786-1-leon@kernel.org>
From: Leon Romanovsky <leonro@nvidia.com>
Reuse auxiliary bus to perform device management of the
ethernet part of the mlx5 driver.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/dev.c | 74 ++++++++++
.../net/ethernet/mellanox/mlx5/core/en_main.c | 133 ++++++++----------
.../net/ethernet/mellanox/mlx5/core/en_rep.c | 41 +++++-
.../net/ethernet/mellanox/mlx5/core/en_rep.h | 6 +-
.../net/ethernet/mellanox/mlx5/core/eswitch.c | 6 +-
drivers/net/ethernet/mellanox/mlx5/core/lag.c | 2 +
.../net/ethernet/mellanox/mlx5/core/main.c | 6 +-
.../ethernet/mellanox/mlx5/core/mlx5_core.h | 2 +-
8 files changed, 181 insertions(+), 89 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
index aa4f30bd7bb5..bfc7df23ed7b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -31,6 +31,7 @@
*/
#include <linux/mlx5/driver.h>
+#include <linux/mlx5/eswitch.h>
#include <linux/mlx5/mlx5_ifc_vdpa.h>
#include "mlx5_core.h"
@@ -52,6 +53,75 @@ enum {
MLX5_INTERFACE_ATTACHED,
};
+static bool is_eth_rep_supported(struct mlx5_core_dev *dev)
+{
+ if (!IS_ENABLED(CONFIG_MLX5_ESWITCH))
+ return false;
+
+ if (!MLX5_ESWITCH_MANAGER(dev))
+ return false;
+
+ if (mlx5_eswitch_mode(dev->priv.eswitch) != MLX5_ESWITCH_OFFLOADS)
+ return false;
+
+ return true;
+}
+
+static bool is_eth_supported(struct mlx5_core_dev *dev)
+{
+ if (!IS_ENABLED(CONFIG_MLX5_CORE_EN))
+ return false;
+
+ if (is_eth_rep_supported(dev))
+ return false;
+
+ if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
+ return false;
+
+ if (!MLX5_CAP_GEN(dev, eth_net_offloads)) {
+ mlx5_core_warn(dev, "Missing eth_net_offloads capability\n");
+ return false;
+ }
+
+ if (!MLX5_CAP_GEN(dev, nic_flow_table)) {
+ mlx5_core_warn(dev, "Missing nic_flow_table capability\n");
+ return false;
+ }
+
+ if (!MLX5_CAP_ETH(dev, csum_cap)) {
+ mlx5_core_warn(dev, "Missing csum_cap capability\n");
+ return false;
+ }
+
+ if (!MLX5_CAP_ETH(dev, max_lso_cap)) {
+ mlx5_core_warn(dev, "Missing max_lso_cap capability\n");
+ return false;
+ }
+
+ if (!MLX5_CAP_ETH(dev, vlan_cap)) {
+ mlx5_core_warn(dev, "Missing vlan_cap capability\n");
+ return false;
+ }
+
+ if (!MLX5_CAP_ETH(dev, rss_ind_tbl_cap)) {
+ mlx5_core_warn(dev, "Missing rss_ind_tbl_cap capability\n");
+ return false;
+ }
+
+ if (MLX5_CAP_FLOWTABLE(dev,
+ flow_table_properties_nic_receive.max_ft_level) < 3) {
+ mlx5_core_warn(dev, "max_ft_level < 3\n");
+ return false;
+ }
+
+ if (!MLX5_CAP_ETH(dev, self_lb_en_modifiable))
+ mlx5_core_warn(dev, "Self loop back prevention is not supported\n");
+ if (!MLX5_CAP_GEN(dev, cq_moderation))
+ mlx5_core_warn(dev, "CQ moderation is not supported\n");
+
+ return true;
+}
+
static bool is_vnet_supported(struct mlx5_core_dev *dev)
{
if (!IS_ENABLED(CONFIG_MLX5_VDPA_NET))
@@ -80,6 +150,10 @@ static const struct mlx5_adev_device {
} mlx5_adev_devices[] = {
[MLX5_INTERFACE_PROTOCOL_VDPA] = { .suffix = "vnet",
.is_supported = &is_vnet_supported },
+ [MLX5_INTERFACE_PROTOCOL_ETH] = { .suffix = "eth",
+ .is_supported = &is_eth_supported },
+ [MLX5_INTERFACE_PROTOCOL_ETH_REP] = { .suffix = "eth-rep",
+ .is_supported = &is_eth_rep_supported },
};
int mlx5_adev_init(struct mlx5_core_dev *dev)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index b3f02aac7f26..3c4f880c6329 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -4597,31 +4597,6 @@ const struct net_device_ops mlx5e_netdev_ops = {
.ndo_get_devlink_port = mlx5e_get_devlink_port,
};
-static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
-{
- if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
- return -EOPNOTSUPP;
- if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
- !MLX5_CAP_GEN(mdev, nic_flow_table) ||
- !MLX5_CAP_ETH(mdev, csum_cap) ||
- !MLX5_CAP_ETH(mdev, max_lso_cap) ||
- !MLX5_CAP_ETH(mdev, vlan_cap) ||
- !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
- MLX5_CAP_FLOWTABLE(mdev,
- flow_table_properties_nic_receive.max_ft_level)
- < 3) {
- mlx5_core_warn(mdev,
- "Not creating net device, some required device capabilities are missing\n");
- return -EOPNOTSUPP;
- }
- if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
- mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
- if (!MLX5_CAP_GEN(mdev, cq_moderation))
- mlx5_core_warn(mdev, "CQ moderation is not supported\n");
-
- return 0;
-}
-
void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
int num_channels)
{
@@ -5440,13 +5415,12 @@ void mlx5e_destroy_netdev(struct mlx5e_priv *priv)
free_netdev(netdev);
}
-/* mlx5e_attach and mlx5e_detach scope should be only creating/destroying
- * hardware contexts and to connect it to the current netdev.
- */
-static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv)
+static int mlx5e_resume(struct auxiliary_device *adev)
{
- struct mlx5e_priv *priv = vpriv;
+ struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev);
+ struct mlx5e_priv *priv = dev_get_drvdata(&adev->dev);
struct net_device *netdev = priv->netdev;
+ struct mlx5_core_dev *mdev = edev->mdev;
int err;
if (netif_device_present(netdev))
@@ -5465,109 +5439,112 @@ static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv)
return 0;
}
-static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv)
+static int mlx5e_suspend(struct auxiliary_device *adev, pm_message_t state)
{
- struct mlx5e_priv *priv = vpriv;
+ struct mlx5e_priv *priv = dev_get_drvdata(&adev->dev);
struct net_device *netdev = priv->netdev;
-
-#ifdef CONFIG_MLX5_ESWITCH
- if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev)
- return;
-#endif
+ struct mlx5_core_dev *mdev = priv->mdev;
if (!netif_device_present(netdev))
- return;
+ return -ENODEV;
mlx5e_detach_netdev(priv);
mlx5e_destroy_mdev_resources(mdev);
+ return 0;
}
-static void *mlx5e_add(struct mlx5_core_dev *mdev)
+static int mlx5e_probe(struct auxiliary_device *adev,
+ const struct auxiliary_device_id *id)
{
+ struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev);
+ struct mlx5_core_dev *mdev = edev->mdev;
struct net_device *netdev;
+ pm_message_t state = {};
void *priv;
int err;
int nch;
- err = mlx5e_check_required_hca_cap(mdev);
- if (err)
- return NULL;
-
-#ifdef CONFIG_MLX5_ESWITCH
- if (MLX5_ESWITCH_MANAGER(mdev) &&
- mlx5_eswitch_mode(mdev->priv.eswitch) == MLX5_ESWITCH_OFFLOADS) {
- mlx5e_rep_register_vport_reps(mdev);
- return mdev;
- }
-#endif
-
nch = mlx5e_get_max_num_channels(mdev);
netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, nch, NULL);
if (!netdev) {
mlx5_core_err(mdev, "mlx5e_create_netdev failed\n");
- return NULL;
+ return -ENOMEM;
}
dev_net_set(netdev, mlx5_core_net(mdev));
priv = netdev_priv(netdev);
+ dev_set_drvdata(&adev->dev, priv);
- err = mlx5e_attach(mdev, priv);
+ err = mlx5e_resume(adev);
if (err) {
- mlx5_core_err(mdev, "mlx5e_attach failed, %d\n", err);
+ mlx5_core_err(mdev, "mlx5e_resume failed, %d\n", err);
goto err_destroy_netdev;
}
err = register_netdev(netdev);
if (err) {
mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
- goto err_detach;
+ goto err_resume;
}
mlx5e_devlink_port_type_eth_set(priv);
mlx5e_dcbnl_init_app(priv);
- return priv;
+ return 0;
-err_detach:
- mlx5e_detach(mdev, priv);
+err_resume:
+ mlx5e_suspend(adev, state);
err_destroy_netdev:
mlx5e_destroy_netdev(priv);
- return NULL;
+ return err;
}
-static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
+static int mlx5e_remove(struct auxiliary_device *adev)
{
- struct mlx5e_priv *priv;
+ struct mlx5e_priv *priv = dev_get_drvdata(&adev->dev);
+ pm_message_t state = {};
-#ifdef CONFIG_MLX5_ESWITCH
- if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev) {
- mlx5e_rep_unregister_vport_reps(mdev);
- return;
- }
-#endif
- priv = vpriv;
mlx5e_dcbnl_delete_app(priv);
unregister_netdev(priv->netdev);
- mlx5e_detach(mdev, vpriv);
+ mlx5e_suspend(adev, state);
mlx5e_destroy_netdev(priv);
+ return 0;
}
-static struct mlx5_interface mlx5e_interface = {
- .add = mlx5e_add,
- .remove = mlx5e_remove,
- .attach = mlx5e_attach,
- .detach = mlx5e_detach,
- .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
+static const struct auxiliary_device_id mlx5e_id_table[] = {
+ { .name = MLX5_ADEV_NAME ".eth", },
+ {},
};
-void mlx5e_init(void)
+MODULE_DEVICE_TABLE(auxiliary, mlx5e_id_table);
+
+static struct auxiliary_driver mlx5e_driver = {
+ .name = "eth",
+ .probe = mlx5e_probe,
+ .remove = mlx5e_remove,
+ .suspend = mlx5e_suspend,
+ .resume = mlx5e_resume,
+ .id_table = mlx5e_id_table,
+};
+
+int mlx5e_init(void)
{
+ int ret;
+
mlx5e_ipsec_build_inverse_table();
mlx5e_build_ptys2ethtool_map();
- mlx5_register_interface(&mlx5e_interface);
+ ret = mlx5e_rep_init();
+ if (ret)
+ return ret;
+
+ ret = auxiliary_driver_register(&mlx5e_driver);
+ if (ret)
+ mlx5e_rep_cleanup();
+ return ret;
}
void mlx5e_cleanup(void)
{
- mlx5_unregister_interface(&mlx5e_interface);
+ auxiliary_driver_unregister(&mlx5e_driver);
+ mlx5e_rep_cleanup();
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index ef2f8889ba0f..6a65a732de56 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1315,16 +1315,49 @@ static const struct mlx5_eswitch_rep_ops rep_ops = {
.get_proto_dev = mlx5e_vport_rep_get_proto_dev
};
-void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev)
+static int mlx5e_rep_probe(struct auxiliary_device *adev,
+ const struct auxiliary_device_id *id)
{
- struct mlx5_eswitch *esw = mdev->priv.eswitch;
+ struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev);
+ struct mlx5_core_dev *mdev = edev->mdev;
+ struct mlx5_eswitch *esw;
+ esw = mdev->priv.eswitch;
mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
+ return 0;
}
-void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev)
+static int mlx5e_rep_remove(struct auxiliary_device *adev)
{
- struct mlx5_eswitch *esw = mdev->priv.eswitch;
+ struct mlx5_adev *vdev = container_of(adev, struct mlx5_adev, adev);
+ struct mlx5_core_dev *mdev = vdev->mdev;
+ struct mlx5_eswitch *esw;
+ esw = mdev->priv.eswitch;
mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
+ return 0;
+}
+
+static const struct auxiliary_device_id mlx5e_rep_id_table[] = {
+ { .name = MLX5_ADEV_NAME ".eth-rep", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(auxiliary, mlx5e_rep_id_table);
+
+static struct auxiliary_driver mlx5e_rep_driver = {
+ .name = "eth-rep",
+ .probe = mlx5e_rep_probe,
+ .remove = mlx5e_rep_remove,
+ .id_table = mlx5e_rep_id_table,
+};
+
+int mlx5e_rep_init(void)
+{
+ return auxiliary_driver_register(&mlx5e_rep_driver);
+}
+
+void mlx5e_rep_cleanup(void)
+{
+ auxiliary_driver_unregister(&mlx5e_rep_driver);
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
index 9020d1419bcf..5709b30bf4e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
@@ -203,8 +203,8 @@ struct mlx5e_rep_sq {
struct list_head list;
};
-void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev);
-void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev);
+int mlx5e_rep_init(void);
+void mlx5e_rep_cleanup(void);
int mlx5e_rep_bond_init(struct mlx5e_rep_priv *rpriv);
void mlx5e_rep_bond_cleanup(struct mlx5e_rep_priv *rpriv);
int mlx5e_rep_bond_enslave(struct mlx5_eswitch *esw, struct net_device *netdev,
@@ -232,6 +232,8 @@ static inline bool mlx5e_eswitch_rep(struct net_device *netdev)
static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; }
static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; }
static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {}
+static inline int mlx5e_rep_init(void) { return 0; };
+static inline void mlx5e_rep_cleanup(void) {};
#endif
static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 2e14bf238588..78a854926b00 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1616,7 +1616,7 @@ int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int mode, int num_vfs)
if (mode == MLX5_ESWITCH_LEGACY) {
err = esw_legacy_enable(esw);
} else {
- mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH);
+ mlx5_rescan_drivers(esw->dev);
mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
err = esw_offloads_enable(esw);
}
@@ -1637,7 +1637,7 @@ int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int mode, int num_vfs)
if (mode == MLX5_ESWITCH_OFFLOADS) {
mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
- mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH);
+ mlx5_rescan_drivers(esw->dev);
}
esw_destroy_tsar(esw);
return err;
@@ -1701,7 +1701,7 @@ void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw, bool clear_vf)
if (old_mode == MLX5_ESWITCH_OFFLOADS) {
mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
- mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH);
+ mlx5_rescan_drivers(esw->dev);
}
esw_destroy_tsar(esw);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index 33081b24f10a..e4d4de1719bd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -596,6 +596,8 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
if (err)
mlx5_core_err(dev, "Failed to init multipath lag err=%d\n",
err);
+
+ return;
}
/* Must be called with intf_mutex held */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index b56a3c956283..8f99428583c3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1668,7 +1668,11 @@ static int __init init(void)
goto err_debug;
#ifdef CONFIG_MLX5_CORE_EN
- mlx5e_init();
+ err = mlx5e_init();
+ if (err) {
+ pci_unregister_driver(&mlx5_core_driver);
+ goto err_debug;
+ }
#endif
return 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
index 3bb7e5606d75..4639fbfbd8ff 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -212,7 +212,7 @@ int mlx5_firmware_flash(struct mlx5_core_dev *dev, const struct firmware *fw,
int mlx5_fw_version_query(struct mlx5_core_dev *dev,
u32 *running_ver, u32 *stored_ver);
-void mlx5e_init(void);
+int mlx5e_init(void);
void mlx5e_cleanup(void);
static inline bool mlx5_sriov_is_enabled(struct mlx5_core_dev *dev)
--
2.26.2
next prev parent reply other threads:[~2020-10-26 11:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 11:18 [PATCH mlx5-next 00/11] Convert mlx5 to use auxiliary bus Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 01/11] net/mlx5: Don't skip vport check Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 02/11] net/mlx5: Properly convey driver version to firmware Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 03/11] net/mlx5_core: Clean driver version and name Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 04/11] vdpa/mlx5: Make hardware definitions visible to all mlx5 devices Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 05/11] net/mlx5: Register mlx5 devices to auxiliary virtual bus Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 06/11] vdpa/mlx5: Connect mlx5_vdpa to auxiliary bus Leon Romanovsky
2020-10-26 11:18 ` Leon Romanovsky [this message]
2020-10-26 11:18 ` [PATCH mlx5-next 08/11] RDMA/mlx5: Convert mlx5_ib to use " Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 09/11] net/mlx5: Delete custom device management logic Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 10/11] net/mlx5: Simplify eswitch mode check Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 11/11] RDMA/mlx5: Remove IB representors dead code Leon Romanovsky
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