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RDMA/mad: Reduce MAD scope to mlx5_ib only 

Management Datagram Interface (MAD) is applicable
only when physical port is Infiniband. It makes MAD
command logic to be completely unrelated to eth/core
parts of mlx5.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Leon Romanovsky 2019-01-13 15:57:04 +02:00
parent 1c7fc5cbc3
commit 73f5a82bb3
7 changed files with 47 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
drivers/infiniband/hw/mlx5/cmd.c
View File

@ -345,3 +345,40 @@ int mlx5_cmd_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id,
counter_set_id);
return err;
}
int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
u16 opmod, u8 port)
{
int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out);
int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in);
int err = -ENOMEM;
void *data;
void *resp;
u32 *out;
u32 *in;
in = kzalloc(inlen, GFP_KERNEL);
out = kzalloc(outlen, GFP_KERNEL);
if (!in || !out)
goto out;
MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC);
MLX5_SET(mad_ifc_in, in, op_mod, opmod);
MLX5_SET(mad_ifc_in, in, port, port);
data = MLX5_ADDR_OF(mad_ifc_in, in, mad);
memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad));
err = mlx5_cmd_exec(dev, in, inlen, out, outlen);
if (err)
goto out;
resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet);
memcpy(outb, resp,
MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet));
out:
kfree(out);
kfree(in);
return err;
}

2
drivers/infiniband/hw/mlx5/cmd.h
View File

@ -63,4 +63,6 @@ int mlx5_cmd_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn, u16 uid);
int mlx5_cmd_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn, u16 uid);
int mlx5_cmd_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id,
u16 uid);
int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
u16 opmod, u8 port);
#endif /* MLX5_IB_CMD_H */

11
drivers/infiniband/hw/mlx5/mad.c
View File

@ -36,6 +36,7 @@
#include <rdma/ib_smi.h>
#include <rdma/ib_pma.h>
#include "mlx5_ib.h"
#include "cmd.h"
enum {
MLX5_IB_VENDOR_CLASS1 = 0x9,
@ -51,9 +52,10 @@ static bool can_do_mad_ifc(struct mlx5_ib_dev *dev, u8 port_num,
return dev->mdev->port_caps[port_num - 1].has_smi;
}
int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
const void *in_mad, void *response_mad)
static int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey,
int ignore_bkey, u8 port, const struct ib_wc *in_wc,
const struct ib_grh *in_grh, const void *in_mad,
void *response_mad)
{
u8 op_modifier = 0;
@ -68,7 +70,8 @@ int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
if (ignore_bkey || !in_wc)
op_modifier |= 0x2;
return mlx5_core_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier, port);
return mlx5_cmd_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier,
port);
}
static int process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,

3
drivers/infiniband/hw/mlx5/mlx5_ib.h
View File

@ -1038,9 +1038,6 @@ void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db)
void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index);
int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
const void *in_mad, void *response_mad);
struct ib_ah *mlx5_ib_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
u32 flags, struct ib_udata *udata);
int mlx5_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);

2
drivers/net/ethernet/mellanox/mlx5/core/Makefile
View File

@ -13,7 +13,7 @@ obj-$(CONFIG_MLX5_CORE) += mlx5_core.o
#
mlx5_core-y := main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
health.o mcg.o cq.o alloc.o qp.o port.o mr.o pd.o \
mad.o transobj.o vport.o sriov.o fs_cmd.o fs_core.o \
transobj.o vport.o sriov.o fs_cmd.o fs_core.o \
fs_counters.o rl.o lag.o dev.o events.o wq.o lib/gid.o \
lib/devcom.o diag/fs_tracepoint.o diag/fw_tracer.o

75
drivers/net/ethernet/mellanox/mlx5/core/mad.c
View File

@ -1,75 +0,0 @@
/*
* Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/cmd.h>
#include "mlx5_core.h"
int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
u16 opmod, u8 port)
{
int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out);
int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in);
int err = -ENOMEM;
void *data;
void *resp;
u32 *out;
u32 *in;
in = kzalloc(inlen, GFP_KERNEL);
out = kzalloc(outlen, GFP_KERNEL);
if (!in || !out)
goto out;
MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC);
MLX5_SET(mad_ifc_in, in, op_mod, opmod);
MLX5_SET(mad_ifc_in, in, port, port);
data = MLX5_ADDR_OF(mad_ifc_in, in, mad);
memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad));
err = mlx5_cmd_exec(dev, in, inlen, out, outlen);
if (err)
goto out;
resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet);
memcpy(outb, resp,
MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet));
out:
kfree(out);
kfree(in);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_core_mad_ifc);

2
include/linux/mlx5/driver.h
View File

@ -897,8 +897,6 @@ int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
u32 *out, int outlen);
int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
u16 opmod, u8 port);
int mlx5_pagealloc_init(struct mlx5_core_dev *dev);
void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
void mlx5_pagealloc_start(struct mlx5_core_dev *dev);