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net/mlx4_core: Add QUERY_FUNC firmware command 

QUERY_FUNC firmware command could be used in order to query the
number of EQs, reserved EQs, etc for a specific function.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matan Barak 2014-11-13 14:45:31 +02:00 committed by David S. Miller
parent a0eacca948
commit e8c4265bea
2 changed files with 67 additions and 0 deletions
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56
drivers/net/ethernet/mellanox/mlx4/fw.c
View File

@ -177,6 +177,62 @@ int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
return err;
}
int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
u8 in_modifier;
u8 field;
u16 field16;
int err;
#define QUERY_FUNC_BUS_OFFSET 0x00
#define QUERY_FUNC_DEVICE_OFFSET 0x01
#define QUERY_FUNC_FUNCTION_OFFSET 0x01
#define QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET 0x03
#define QUERY_FUNC_RSVD_EQS_OFFSET 0x04
#define QUERY_FUNC_MAX_EQ_OFFSET 0x06
#define QUERY_FUNC_RSVD_UARS_OFFSET 0x0b
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
in_modifier = slave;
mlx4_dbg(dev, "%s for VF %d\n", __func__, in_modifier);
err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, 0,
MLX4_CMD_QUERY_FUNC,
MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err)
goto out;
MLX4_GET(field, outbox, QUERY_FUNC_BUS_OFFSET);
func->bus = field & 0xf;
MLX4_GET(field, outbox, QUERY_FUNC_DEVICE_OFFSET);
func->device = field & 0xf1;
MLX4_GET(field, outbox, QUERY_FUNC_FUNCTION_OFFSET);
func->function = field & 0x7;
MLX4_GET(field, outbox, QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET);
func->physical_function = field & 0xf;
MLX4_GET(field16, outbox, QUERY_FUNC_RSVD_EQS_OFFSET);
func->rsvd_eqs = field16 & 0xffff;
MLX4_GET(field16, outbox, QUERY_FUNC_MAX_EQ_OFFSET);
func->max_eq = field16 & 0xffff;
MLX4_GET(field, outbox, QUERY_FUNC_RSVD_UARS_OFFSET);
func->rsvd_uars = field & 0x0f;
mlx4_dbg(dev, "Bus: %d, Device: %d, Function: %d, Physical function: %d, Max EQs: %d, Reserved EQs: %d, Reserved UARs: %d\n",
func->bus, func->device, func->function, func->physical_function,
func->max_eq, func->rsvd_eqs, func->rsvd_uars);
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,

11
drivers/net/ethernet/mellanox/mlx4/fw.h
View File

@ -145,6 +145,16 @@ struct mlx4_func_cap {
u64 phys_port_id;
};
struct mlx4_func {
int bus;
int device;
int function;
int physical_function;
int rsvd_eqs;
int max_eq;
int rsvd_uars;
};
struct mlx4_adapter {
char board_id[MLX4_BOARD_ID_LEN];
u8 inta_pin;
@ -211,6 +221,7 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd);
int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave);
int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm);
int mlx4_UNMAP_FA(struct mlx4_dev *dev);
int mlx4_RUN_FW(struct mlx4_dev *dev);