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IB/mlx5: Update counter implementation for dual port RoCE

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Update the counter interface for multiple ports. Some counter sets
always comes from the primary device.

Port specific counters should be accessed per mlx5_core_dev not always
through the IB master mdev.

Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Daniel Jurgens 2018-01-04 17:25:40 +02:00 committed by Jason Gunthorpe
parent a9e546e73a
commit aac4492ef2
2 changed files with 42 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
drivers/infiniband/hw/mlx5/main.c
View file

@ -3885,11 +3885,12 @@ static const struct mlx5_ib_counter extended_err_cnts[] = {
static void mlx5_ib_dealloc_counters(struct mlx5_ib_dev *dev)
{
unsigned int i;
int i;
for (i = 0; i < dev->num_ports; i++) {
mlx5_core_dealloc_q_counter(dev->mdev,
dev->port[i].cnts.set_id);
if (dev->port[i].cnts.set_id)
mlx5_core_dealloc_q_counter(dev->mdev,
dev->port[i].cnts.set_id);
kfree(dev->port[i].cnts.names);
kfree(dev->port[i].cnts.offsets);
}
@ -3931,6 +3932,7 @@ static int __mlx5_ib_alloc_counters(struct mlx5_ib_dev *dev,
err_names:
kfree(cnts->names);
cnts->names = NULL;
return -ENOMEM;
}
@ -3977,37 +3979,33 @@ static void mlx5_ib_fill_counters(struct mlx5_ib_dev *dev,
static int mlx5_ib_alloc_counters(struct mlx5_ib_dev *dev)
{
int err = 0;
int i;
int ret;
for (i = 0; i < dev->num_ports; i++) {
struct mlx5_ib_port *port = &dev->port[i];
err = __mlx5_ib_alloc_counters(dev, &dev->port[i].cnts);
if (err)
goto err_alloc;
ret = mlx5_core_alloc_q_counter(dev->mdev,
&port->cnts.set_id);
if (ret) {
mlx5_ib_fill_counters(dev, dev->port[i].cnts.names,
dev->port[i].cnts.offsets);
err = mlx5_core_alloc_q_counter(dev->mdev,
&dev->port[i].cnts.set_id);
if (err) {
mlx5_ib_warn(dev,
"couldn't allocate queue counter for port %d, err %d\n",
i + 1, ret);
goto dealloc_counters;
i + 1, err);
goto err_alloc;
}
ret = __mlx5_ib_alloc_counters(dev, &port->cnts);
if (ret)
goto dealloc_counters;
mlx5_ib_fill_counters(dev, port->cnts.names,
port->cnts.offsets);
dev->port[i].cnts.set_id_valid = true;
}
return 0;
dealloc_counters:
while (--i >= 0)
mlx5_core_dealloc_q_counter(dev->mdev,
dev->port[i].cnts.set_id);
return ret;
err_alloc:
mlx5_ib_dealloc_counters(dev);
return err;
}
static struct rdma_hw_stats *mlx5_ib_alloc_hw_stats(struct ib_device *ibdev,
@ -4026,7 +4024,7 @@ static struct rdma_hw_stats *mlx5_ib_alloc_hw_stats(struct ib_device *ibdev,
RDMA_HW_STATS_DEFAULT_LIFESPAN);
}
static int mlx5_ib_query_q_counters(struct mlx5_ib_dev *dev,
static int mlx5_ib_query_q_counters(struct mlx5_core_dev *mdev,
struct mlx5_ib_port *port,
struct rdma_hw_stats *stats)
{
@ -4039,7 +4037,7 @@ static int mlx5_ib_query_q_counters(struct mlx5_ib_dev *dev,
if (!out)
return -ENOMEM;
ret = mlx5_core_query_q_counter(dev->mdev,
ret = mlx5_core_query_q_counter(mdev,
port->cnts.set_id, 0,
out, outlen);
if (ret)
@ -4061,28 +4059,43 @@ static int mlx5_ib_get_hw_stats(struct ib_device *ibdev,
{
struct mlx5_ib_dev *dev = to_mdev(ibdev);
struct mlx5_ib_port *port = &dev->port[port_num - 1];
struct mlx5_core_dev *mdev;
int ret, num_counters;
u8 mdev_port_num;
if (!stats)
return -EINVAL;
ret = mlx5_ib_query_q_counters(dev, port, stats);
num_counters = port->cnts.num_q_counters + port->cnts.num_cong_counters;
/* q_counters are per IB device, query the master mdev */
ret = mlx5_ib_query_q_counters(dev->mdev, port, stats);
if (ret)
return ret;
num_counters = port->cnts.num_q_counters;
if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) {
mdev = mlx5_ib_get_native_port_mdev(dev, port_num,
&mdev_port_num);
if (!mdev) {
/* If port is not affiliated yet, its in down state
* which doesn't have any counters yet, so it would be
* zero. So no need to read from the HCA.
*/
goto done;
}
ret = mlx5_lag_query_cong_counters(dev->mdev,
stats->value +
port->cnts.num_q_counters,
port->cnts.num_cong_counters,
port->cnts.offsets +
port->cnts.num_q_counters);
mlx5_ib_put_native_port_mdev(dev, port_num);
if (ret)
return ret;
num_counters += port->cnts.num_cong_counters;
}
done:
return num_counters;
}

1
drivers/infiniband/hw/mlx5/mlx5_ib.h
View file

@ -652,6 +652,7 @@ struct mlx5_ib_counters {
u32 num_q_counters;
u32 num_cong_counters;
u16 set_id;
bool set_id_valid;
};
struct mlx5_ib_multiport_info;