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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
Download Patch File Download Diff File Expand all files Collapse all files

8
include/linux/mlx5/device.h
View File

@@ -251,6 +251,7 @@ enum mlx5_event {
MLX5_EVENT_TYPE_PAGE_REQUEST = 0xb,
MLX5_EVENT_TYPE_PAGE_FAULT = 0xc,
MLX5_EVENT_TYPE_NIC_VPORT_CHANGE = 0xd,
};
enum {
@@ -520,6 +521,12 @@ struct mlx5_eqe_page_fault {
__be32 flags_qpn;
} __packed;
struct mlx5_eqe_vport_change {
u8 rsvd0[2];
__be16 vport_num;
__be32 rsvd1[6];
} __packed;
union ev_data {
__be32 raw[7];
struct mlx5_eqe_cmd cmd;
@@ -532,6 +539,7 @@ union ev_data {
struct mlx5_eqe_stall_vl stall_vl;
struct mlx5_eqe_page_req req_pages;
struct mlx5_eqe_page_fault page_fault;
struct mlx5_eqe_vport_change vport_change;
} __packed;
struct mlx5_eqe {

4
include/linux/mlx5/driver.h
View File

@@ -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;
};