renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-19 18:53:52 +08:00
Code

net/mlx4: Add mlx4_SET_VPORT_QOS implementation

Browse Source 
Add the SET_VPORT_QOS device command, which is ntended for virtual
granular QoS configuration per VF in SRIOV mode. The SET_VPORT_QOS
command sets and queries QoS parameters of a VPort. Each priority
allowed for a VPort is assigned with a share of the BW, and a BW
limitation. QoS parameters can be modified at any time, but must be
initialized before any QP is associated with the VPort.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Shamay 2015-04-02 16:31:12 +03:00 committed by David S. Miller
parent 7e95bb99a8
commit 1c29146d38
4 changed files with 135 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/ethernet/mellanox/mlx4/cmd.c
View File

@ -1463,6 +1463,15 @@ static struct mlx4_cmd_info cmd_info[] = {
.verify = NULL,
.wrapper = mlx4_CMD_EPERM_wrapper,
},
{
.opcode = MLX4_CMD_SET_VPORT_QOS,
.has_inbox = false,
.has_outbox = true,
.out_is_imm = false,
.encode_slave_id = false,
.verify = NULL,
.wrapper = mlx4_CMD_EPERM_wrapper,
},
{
.opcode = MLX4_CMD_CONF_SPECIAL_QP,
.has_inbox = false,

89
drivers/net/ethernet/mellanox/mlx4/fw_qos.c
View File

@ -42,6 +42,12 @@ enum {
MLX4_ALLOCATE_VPP_QUERY = 0x1
};
enum {
/* set vport qos opcode modifiers */
MLX4_SET_VPORT_QOS_SET = 0x0,
MLX4_SET_VPORT_QOS_QUERY = 0x1
};
struct mlx4_set_port_prio2tc_context {
u8 prio2tc[4];
};
@ -63,6 +69,19 @@ struct mlx4_alloc_vpp_param {
__be32 vpp_p_up[MLX4_NUM_UP];
};
struct mlx4_prio_qos_param {
__be32 bw_share;
__be32 max_avg_bw;
__be32 reserved;
__be32 enable;
__be32 reserved1[4];
};
struct mlx4_set_vport_context {
__be32 reserved[8];
struct mlx4_prio_qos_param qos_p_up[MLX4_NUM_UP];
};
int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc)
{
struct mlx4_cmd_mailbox *mailbox;
@ -198,3 +217,73 @@ int mlx4_ALLOCATE_VPP_set(struct mlx4_dev *dev, u8 port, u8 *vpp_p_up)
return err;
}
EXPORT_SYMBOL(mlx4_ALLOCATE_VPP_set);
int mlx4_SET_VPORT_QOS_get(struct mlx4_dev *dev, u8 port, u8 vport,
struct mlx4_vport_qos_param *out_param)
{
int i;
int err;
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_set_vport_context *ctx;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
ctx = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, (vport << 8) | port,
MLX4_SET_VPORT_QOS_QUERY,
MLX4_CMD_SET_VPORT_QOS,
MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err)
goto out;
for (i = 0; i < MLX4_NUM_UP; i++) {
out_param[i].bw_share = be32_to_cpu(ctx->qos_p_up[i].bw_share);
out_param[i].max_avg_bw =
be32_to_cpu(ctx->qos_p_up[i].max_avg_bw);
out_param[i].enable =
!!(be32_to_cpu(ctx->qos_p_up[i].enable) & 31);
}
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
EXPORT_SYMBOL(mlx4_SET_VPORT_QOS_get);
int mlx4_SET_VPORT_QOS_set(struct mlx4_dev *dev, u8 port, u8 vport,
struct mlx4_vport_qos_param *in_param)
{
int i;
int err;
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_set_vport_context *ctx;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
ctx = mailbox->buf;
for (i = 0; i < MLX4_NUM_UP; i++) {
ctx->qos_p_up[i].bw_share = cpu_to_be32(in_param[i].bw_share);
ctx->qos_p_up[i].max_avg_bw =
cpu_to_be32(in_param[i].max_avg_bw);
ctx->qos_p_up[i].enable =
cpu_to_be32(in_param[i].enable << 31);
}
err = mlx4_cmd(dev, mailbox->dma, (vport << 8) | port,
MLX4_SET_VPORT_QOS_SET,
MLX4_CMD_SET_VPORT_QOS,
MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
EXPORT_SYMBOL(mlx4_SET_VPORT_QOS_set);

36
drivers/net/ethernet/mellanox/mlx4/fw_qos.h
View File

@ -41,6 +41,12 @@
#define MLX4_NUM_UP 8
#define MLX4_NUM_TC 8
struct mlx4_vport_qos_param {
u32 bw_share;
u32 max_avg_bw;
u8 enable;
};
/**
* mlx4_SET_PORT_PRIO2TC - This routine maps user priorities to traffic
* classes of a given port and device.
@ -100,4 +106,34 @@ int mlx4_ALLOCATE_VPP_get(struct mlx4_dev *dev, u8 port,
**/
int mlx4_ALLOCATE_VPP_set(struct mlx4_dev *dev, u8 port, u8 *vpp_p_up);
/**
* mlx4_SET_VPORT_QOS_get - Query QoS proporties of a Vport.
* Each priority allowed for the Vport is assigned with a share of the BW,
* and a BW limitation. This commands query the current QoS values.
*
* @dev: mlx4_dev.
* @port: Physical port number.
* @vport: Vport id.
* @out_param: Array of mlx4_vport_qos_param that will contain the values.
*
* Returns 0 on success or a negative mlx4_core errno code.
**/
int mlx4_SET_VPORT_QOS_get(struct mlx4_dev *dev, u8 port, u8 vport,
struct mlx4_vport_qos_param *out_param);
/**
* mlx4_SET_VPORT_QOS_set - Set QoS proporties of a Vport.
* QoS parameters can be modified at any time, but must be initialized
* before any QP is associated with the VPort.
*
* @dev: mlx4_dev.
* @port: Physical port number.
* @vport: Vport id.
* @out_param: Array of mlx4_vport_qos_param which holds the requested values.
*
* Returns 0 on success or a negative mlx4_core errno code.
**/
int mlx4_SET_VPORT_QOS_set(struct mlx4_dev *dev, u8 port, u8 vport,
struct mlx4_vport_qos_param *in_param);
#endif /* MLX4_FW_QOS_H */

1
include/linux/mlx4/cmd.h
View File

@ -69,6 +69,7 @@ enum {
MLX4_CMD_SET_ICM_SIZE = 0xffd,
MLX4_CMD_ACCESS_REG = 0x3b,
MLX4_CMD_ALLOCATE_VPP = 0x80,
MLX4_CMD_SET_VPORT_QOS = 0x81,
/*master notify fw on finish for slave's flr*/
MLX4_CMD_INFORM_FLR_DONE = 0x5b,