mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-29 04:09:39 +00:00
![Talat Batheesh](/assets/img/avatar_default.png)
port_xmit_data is written instead of port_rcv_data.
Fixes: 3efd9a1121
('IB/mlx5: Modify MAD reading counters method to use counter registers')
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
588 lines
17 KiB
C
588 lines
17 KiB
C
/*
|
|
* 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/mlx5/cmd.h>
|
|
#include <linux/mlx5/vport.h>
|
|
#include <rdma/ib_mad.h>
|
|
#include <rdma/ib_smi.h>
|
|
#include <rdma/ib_pma.h>
|
|
#include "mlx5_ib.h"
|
|
|
|
enum {
|
|
MLX5_IB_VENDOR_CLASS1 = 0x9,
|
|
MLX5_IB_VENDOR_CLASS2 = 0xa
|
|
};
|
|
|
|
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;
|
|
|
|
/* Key check traps can't be generated unless we have in_wc to
|
|
* tell us where to send the trap.
|
|
*/
|
|
if (ignore_mkey || !in_wc)
|
|
op_modifier |= 0x1;
|
|
if (ignore_bkey || !in_wc)
|
|
op_modifier |= 0x2;
|
|
|
|
return mlx5_core_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,
|
|
const struct ib_wc *in_wc, const struct ib_grh *in_grh,
|
|
const struct ib_mad *in_mad, struct ib_mad *out_mad)
|
|
{
|
|
u16 slid;
|
|
int err;
|
|
|
|
slid = in_wc ? in_wc->slid : be16_to_cpu(IB_LID_PERMISSIVE);
|
|
|
|
if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0)
|
|
return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
|
|
|
|
if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
|
|
in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
|
|
if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET &&
|
|
in_mad->mad_hdr.method != IB_MGMT_METHOD_SET &&
|
|
in_mad->mad_hdr.method != IB_MGMT_METHOD_TRAP_REPRESS)
|
|
return IB_MAD_RESULT_SUCCESS;
|
|
|
|
/* Don't process SMInfo queries -- the SMA can't handle them.
|
|
*/
|
|
if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO)
|
|
return IB_MAD_RESULT_SUCCESS;
|
|
} else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT ||
|
|
in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS1 ||
|
|
in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS2 ||
|
|
in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_CONG_MGMT) {
|
|
if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET &&
|
|
in_mad->mad_hdr.method != IB_MGMT_METHOD_SET)
|
|
return IB_MAD_RESULT_SUCCESS;
|
|
} else {
|
|
return IB_MAD_RESULT_SUCCESS;
|
|
}
|
|
|
|
err = mlx5_MAD_IFC(to_mdev(ibdev),
|
|
mad_flags & IB_MAD_IGNORE_MKEY,
|
|
mad_flags & IB_MAD_IGNORE_BKEY,
|
|
port_num, in_wc, in_grh, in_mad, out_mad);
|
|
if (err)
|
|
return IB_MAD_RESULT_FAILURE;
|
|
|
|
/* set return bit in status of directed route responses */
|
|
if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
|
|
out_mad->mad_hdr.status |= cpu_to_be16(1 << 15);
|
|
|
|
if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP_REPRESS)
|
|
/* no response for trap repress */
|
|
return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
|
|
|
|
return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
|
|
}
|
|
|
|
static void pma_cnt_ext_assign(struct ib_pma_portcounters_ext *pma_cnt_ext,
|
|
void *out)
|
|
{
|
|
#define MLX5_SUM_CNT(p, cntr1, cntr2) \
|
|
(MLX5_GET64(query_vport_counter_out, p, cntr1) + \
|
|
MLX5_GET64(query_vport_counter_out, p, cntr2))
|
|
|
|
pma_cnt_ext->port_xmit_data =
|
|
cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.octets,
|
|
transmitted_ib_multicast.octets) >> 2);
|
|
pma_cnt_ext->port_rcv_data =
|
|
cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.octets,
|
|
received_ib_multicast.octets) >> 2);
|
|
pma_cnt_ext->port_xmit_packets =
|
|
cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.packets,
|
|
transmitted_ib_multicast.packets));
|
|
pma_cnt_ext->port_rcv_packets =
|
|
cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.packets,
|
|
received_ib_multicast.packets));
|
|
pma_cnt_ext->port_unicast_xmit_packets =
|
|
MLX5_GET64_BE(query_vport_counter_out,
|
|
out, transmitted_ib_unicast.packets);
|
|
pma_cnt_ext->port_unicast_rcv_packets =
|
|
MLX5_GET64_BE(query_vport_counter_out,
|
|
out, received_ib_unicast.packets);
|
|
pma_cnt_ext->port_multicast_xmit_packets =
|
|
MLX5_GET64_BE(query_vport_counter_out,
|
|
out, transmitted_ib_multicast.packets);
|
|
pma_cnt_ext->port_multicast_rcv_packets =
|
|
MLX5_GET64_BE(query_vport_counter_out,
|
|
out, received_ib_multicast.packets);
|
|
}
|
|
|
|
static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt,
|
|
void *out)
|
|
{
|
|
/* Traffic counters will be reported in
|
|
* their 64bit form via ib_pma_portcounters_ext by default.
|
|
*/
|
|
void *out_pma = MLX5_ADDR_OF(ppcnt_reg, out,
|
|
counter_set);
|
|
|
|
#define MLX5_ASSIGN_PMA_CNTR(counter_var, counter_name) { \
|
|
counter_var = MLX5_GET_BE(typeof(counter_var), \
|
|
ib_port_cntrs_grp_data_layout, \
|
|
out_pma, counter_name); \
|
|
}
|
|
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->symbol_error_counter,
|
|
symbol_error_counter);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_error_recovery_counter,
|
|
link_error_recovery_counter);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_downed_counter,
|
|
link_downed_counter);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_errors,
|
|
port_rcv_errors);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_remphys_errors,
|
|
port_rcv_remote_physical_errors);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_switch_relay_errors,
|
|
port_rcv_switch_relay_errors);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_discards,
|
|
port_xmit_discards);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_constraint_errors,
|
|
port_xmit_constraint_errors);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_constraint_errors,
|
|
port_rcv_constraint_errors);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_overrun_errors,
|
|
link_overrun_errors);
|
|
MLX5_ASSIGN_PMA_CNTR(pma_cnt->vl15_dropped,
|
|
vl_15_dropped);
|
|
}
|
|
|
|
static int process_pma_cmd(struct ib_device *ibdev, u8 port_num,
|
|
const struct ib_mad *in_mad, struct ib_mad *out_mad)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
int err;
|
|
void *out_cnt;
|
|
|
|
/* Decalring support of extended counters */
|
|
if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) {
|
|
struct ib_class_port_info cpi = {};
|
|
|
|
cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH;
|
|
memcpy((out_mad->data + 40), &cpi, sizeof(cpi));
|
|
return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
|
|
}
|
|
|
|
if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) {
|
|
struct ib_pma_portcounters_ext *pma_cnt_ext =
|
|
(struct ib_pma_portcounters_ext *)(out_mad->data + 40);
|
|
int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out);
|
|
|
|
out_cnt = mlx5_vzalloc(sz);
|
|
if (!out_cnt)
|
|
return IB_MAD_RESULT_FAILURE;
|
|
|
|
err = mlx5_core_query_vport_counter(dev->mdev, 0, 0,
|
|
port_num, out_cnt, sz);
|
|
if (!err)
|
|
pma_cnt_ext_assign(pma_cnt_ext, out_cnt);
|
|
} else {
|
|
struct ib_pma_portcounters *pma_cnt =
|
|
(struct ib_pma_portcounters *)(out_mad->data + 40);
|
|
int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
|
|
|
|
out_cnt = mlx5_vzalloc(sz);
|
|
if (!out_cnt)
|
|
return IB_MAD_RESULT_FAILURE;
|
|
|
|
err = mlx5_core_query_ib_ppcnt(dev->mdev, port_num,
|
|
out_cnt, sz);
|
|
if (!err)
|
|
pma_cnt_assign(pma_cnt, out_cnt);
|
|
}
|
|
|
|
kvfree(out_cnt);
|
|
if (err)
|
|
return IB_MAD_RESULT_FAILURE;
|
|
|
|
return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
|
|
}
|
|
|
|
int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
|
|
const struct ib_wc *in_wc, const struct ib_grh *in_grh,
|
|
const struct ib_mad_hdr *in, size_t in_mad_size,
|
|
struct ib_mad_hdr *out, size_t *out_mad_size,
|
|
u16 *out_mad_pkey_index)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
const struct ib_mad *in_mad = (const struct ib_mad *)in;
|
|
struct ib_mad *out_mad = (struct ib_mad *)out;
|
|
|
|
if (WARN_ON_ONCE(in_mad_size != sizeof(*in_mad) ||
|
|
*out_mad_size != sizeof(*out_mad)))
|
|
return IB_MAD_RESULT_FAILURE;
|
|
|
|
memset(out_mad->data, 0, sizeof(out_mad->data));
|
|
|
|
if (MLX5_CAP_GEN(mdev, vport_counters) &&
|
|
in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT &&
|
|
in_mad->mad_hdr.method == IB_MGMT_METHOD_GET) {
|
|
return process_pma_cmd(ibdev, port_num, in_mad, out_mad);
|
|
} else {
|
|
return process_mad(ibdev, mad_flags, port_num, in_wc, in_grh,
|
|
in_mad, out_mad);
|
|
}
|
|
}
|
|
|
|
int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port)
|
|
{
|
|
struct ib_smp *in_mad = NULL;
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
u16 packet_error;
|
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO;
|
|
in_mad->attr_mod = cpu_to_be32(port);
|
|
|
|
err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
|
|
|
|
packet_error = be16_to_cpu(out_mad->status);
|
|
|
|
dev->mdev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ?
|
|
MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0;
|
|
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev,
|
|
struct ib_smp *out_mad)
|
|
{
|
|
struct ib_smp *in_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);
|
|
if (!in_mad)
|
|
return -ENOMEM;
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
|
|
|
|
err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad,
|
|
out_mad);
|
|
|
|
kfree(in_mad);
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev,
|
|
__be64 *sys_image_guid)
|
|
{
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!out_mad)
|
|
return -ENOMEM;
|
|
|
|
err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
memcpy(sys_image_guid, out_mad->data + 4, 8);
|
|
|
|
out:
|
|
kfree(out_mad);
|
|
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev,
|
|
u16 *max_pkeys)
|
|
{
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!out_mad)
|
|
return -ENOMEM;
|
|
|
|
err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
*max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28));
|
|
|
|
out:
|
|
kfree(out_mad);
|
|
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev,
|
|
u32 *vendor_id)
|
|
{
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!out_mad)
|
|
return -ENOMEM;
|
|
|
|
err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
*vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff;
|
|
|
|
out:
|
|
kfree(out_mad);
|
|
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc)
|
|
{
|
|
struct ib_smp *in_mad = NULL;
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
|
|
|
|
err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
memcpy(node_desc, out_mad->data, 64);
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid)
|
|
{
|
|
struct ib_smp *in_mad = NULL;
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
|
|
|
|
err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
memcpy(node_guid, out_mad->data + 12, 8);
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index,
|
|
u16 *pkey)
|
|
{
|
|
struct ib_smp *in_mad = NULL;
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
|
|
in_mad->attr_mod = cpu_to_be32(index / 32);
|
|
|
|
err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad,
|
|
out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
*pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]);
|
|
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index,
|
|
union ib_gid *gid)
|
|
{
|
|
struct ib_smp *in_mad = NULL;
|
|
struct ib_smp *out_mad = NULL;
|
|
int err = -ENOMEM;
|
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
|
|
in_mad->attr_mod = cpu_to_be32(port);
|
|
|
|
err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad,
|
|
out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
memcpy(gid->raw, out_mad->data + 8, 8);
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
|
|
in_mad->attr_mod = cpu_to_be32(index / 8);
|
|
|
|
err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad,
|
|
out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
|
|
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
return err;
|
|
}
|
|
|
|
int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port,
|
|
struct ib_port_attr *props)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(ibdev);
|
|
struct mlx5_core_dev *mdev = dev->mdev;
|
|
struct ib_smp *in_mad = NULL;
|
|
struct ib_smp *out_mad = NULL;
|
|
int ext_active_speed;
|
|
int err = -ENOMEM;
|
|
|
|
if (port < 1 || port > MLX5_CAP_GEN(mdev, num_ports)) {
|
|
mlx5_ib_warn(dev, "invalid port number %d\n", port);
|
|
return -EINVAL;
|
|
}
|
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
memset(props, 0, sizeof(*props));
|
|
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
|
|
in_mad->attr_mod = cpu_to_be32(port);
|
|
|
|
err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad);
|
|
if (err) {
|
|
mlx5_ib_warn(dev, "err %d\n", err);
|
|
goto out;
|
|
}
|
|
|
|
props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16));
|
|
props->lmc = out_mad->data[34] & 0x7;
|
|
props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18));
|
|
props->sm_sl = out_mad->data[36] & 0xf;
|
|
props->state = out_mad->data[32] & 0xf;
|
|
props->phys_state = out_mad->data[33] >> 4;
|
|
props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20));
|
|
props->gid_tbl_len = out_mad->data[50];
|
|
props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg);
|
|
props->pkey_tbl_len = mdev->port_caps[port - 1].pkey_table_len;
|
|
props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46));
|
|
props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48));
|
|
props->active_width = out_mad->data[31] & 0xf;
|
|
props->active_speed = out_mad->data[35] >> 4;
|
|
props->max_mtu = out_mad->data[41] & 0xf;
|
|
props->active_mtu = out_mad->data[36] >> 4;
|
|
props->subnet_timeout = out_mad->data[51] & 0x1f;
|
|
props->max_vl_num = out_mad->data[37] >> 4;
|
|
props->init_type_reply = out_mad->data[41] >> 4;
|
|
|
|
/* Check if extended speeds (EDR/FDR/...) are supported */
|
|
if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
|
|
ext_active_speed = out_mad->data[62] >> 4;
|
|
|
|
switch (ext_active_speed) {
|
|
case 1:
|
|
props->active_speed = 16; /* FDR */
|
|
break;
|
|
case 2:
|
|
props->active_speed = 32; /* EDR */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If reported active speed is QDR, check if is FDR-10 */
|
|
if (props->active_speed == 4) {
|
|
if (mdev->port_caps[port - 1].ext_port_cap &
|
|
MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) {
|
|
init_query_mad(in_mad);
|
|
in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO;
|
|
in_mad->attr_mod = cpu_to_be32(port);
|
|
|
|
err = mlx5_MAD_IFC(dev, 1, 1, port,
|
|
NULL, NULL, in_mad, out_mad);
|
|
if (err)
|
|
goto out;
|
|
|
|
/* Checking LinkSpeedActive for FDR-10 */
|
|
if (out_mad->data[15] & 0x1)
|
|
props->active_speed = 8;
|
|
}
|
|
}
|
|
|
|
out:
|
|
kfree(in_mad);
|
|
kfree(out_mad);
|
|
|
|
return err;
|
|
}
|