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net/mlx5: Introducing E-Switch and l2 table

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E-Switch is the software entity that represents and manages ConnectX4
inter-HCA ethernet l2 switching.

E-Switch has its own Virtual Ports, each Vport/vNIC/VF can be
connected to the device through a vport of an e-switch.

Each e-switch is managed by one vNIC identified by
HCA_CAP.vport_group_manager (usually it is the PF/vport[0]),
and its main responsibility is to forward each packet to the
right vport.

e-Switch needs to manage its own l2-table and FDB tables.

L2 table is a flow table that is managed by FW, it is needed for
Multi-host (Multi PF) configuration for inter HCA switching between
PFs.

FDB table is a flow table that is totally managed by e-Switch driver,
its main responsibility is to switch packets between e-Swtich internal
vports and uplink vport that belong to the same.

This patch introduces only e-Swtich l2 table management, FDB managemnt
will come later when ethernet SRIOV/VFs will be enabled.

preperation for ethernet sriov and l2 table management.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Saeed Mahameed
2015-12-01 18:03:18 +02:00
committed by David S. Miller
parent aad9e6e41e
commit 073bb189a4
7 changed files with 666 additions and 1 deletions
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4
include/linux/mlx5/driver.h
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@@ -441,6 +441,8 @@ struct mlx5_irq_info {
char name[MLX5_MAX_IRQ_NAME];
};
struct mlx5_eswitch;
struct mlx5_priv {
char name[MLX5_MAX_NAME_LEN];
struct mlx5_eq_table eq_table;
@@ -496,6 +498,8 @@ struct mlx5_priv {
struct list_head dev_list;
struct list_head ctx_list;
spinlock_t ctx_lock;
struct mlx5_eswitch *eswitch;
struct mlx5_core_sriov sriov;
unsigned long pci_dev_data;
};