From e8c4265bea8437f5583d0c2f272058200ebc10ff Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Thu, 13 Nov 2014 14:45:31 +0200 Subject: [PATCH] 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 Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/fw.c | 56 +++++++++++++++++++++++++++++++++ drivers/net/ethernet/mellanox/mlx4/fw.h | 11 +++++++ 2 files changed, 67 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index f1a6718968fe..b3bbeb97da14 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -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, diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.h b/drivers/net/ethernet/mellanox/mlx4/fw.h index 694557e5f4fb..48c11b5e73e7 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.h +++ b/drivers/net/ethernet/mellanox/mlx4/fw.h @@ -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); -- 2.11.0