Commit 6d6e996c authored by Majd Dibbiny's avatar Majd Dibbiny Committed by David S. Miller

net/mlx4_core: Update the HCA core clock frequency after INIT_PORT

The firmware might change the hca core clock frequency after the driver
issues the INIT_PORT command. Therefore we need to query the new
value again and save in to the cached dev caps.

Fixes: ddd8a6c1 ('net/mlx4_core: Read HCA frequency and map internal clock')
Signed-off-by: default avatarMajd Dibbiny <majd@mellanox.com>
Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cb2147a9
...@@ -1897,6 +1897,36 @@ int mlx4_QUERY_HCA(struct mlx4_dev *dev, ...@@ -1897,6 +1897,36 @@ int mlx4_QUERY_HCA(struct mlx4_dev *dev,
return err; return err;
} }
static int mlx4_hca_core_clock_update(struct mlx4_dev *dev)
{
struct mlx4_cmd_mailbox *mailbox;
__be32 *outbox;
int err;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
mlx4_warn(dev, "hca_core_clock mailbox allocation failed\n");
return PTR_ERR(mailbox);
}
outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
MLX4_CMD_QUERY_HCA,
MLX4_CMD_TIME_CLASS_B,
!mlx4_is_slave(dev));
if (err) {
mlx4_warn(dev, "hca_core_clock update failed\n");
goto out;
}
MLX4_GET(dev->caps.hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
/* for IB-type ports only in SRIOV mode. Checks that both proxy QP0 /* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
* and real QP0 are active, so that the paravirtualized QP0 is ready * and real QP0 are active, so that the paravirtualized QP0 is ready
* to operate */ * to operate */
...@@ -2001,6 +2031,9 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, int port) ...@@ -2001,6 +2031,9 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT, err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
if (!err)
mlx4_hca_core_clock_update(dev);
return err; return err;
} }
EXPORT_SYMBOL_GPL(mlx4_INIT_PORT); EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
......
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