cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/ethernet/mellanox/mlx4/sense.c

/*
 * Copyright (c) 2007 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/errno.h>
#include <linux/if_ether.h>

#include <linux/mlx4/cmd.h>

#include "mlx4.h"


int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port, enum mlx4_port_type *type) { u64 out_param; int err = 0; err = mlx4_cmd_imm(dev, 0, &out_param, port, 0, MLX4_CMD_SENSE_PORT, MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); if (err) { mlx4_err(dev, "Sense command failed for port: %d\n", port); return err; } if (out_param > 2) { mlx4_err(dev, "Sense returned illegal value: 0x%llx\n", out_param); return -EINVAL; } *type = out_param; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Yevgeny Petrilin9296.84%133.33%
Jack Morgenstein22.11%133.33%
Roel Kluin11.05%133.33%
Total95100.00%3100.00%


void mlx4_do_sense_ports(struct mlx4_dev *dev, enum mlx4_port_type *stype, enum mlx4_port_type *defaults) { struct mlx4_sense *sense = &mlx4_priv(dev)->sense; int err; int i; for (i = 1; i <= dev->caps.num_ports; i++) { stype[i - 1] = 0; if (sense->do_sense_port[i] && sense->sense_allowed[i] && dev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) { err = mlx4_SENSE_PORT(dev, i, &stype[i - 1]); if (err) stype[i - 1] = defaults[i - 1]; } else stype[i - 1] = defaults[i - 1]; } /* * If sensed nothing, remain in current configuration. */ for (i = 0; i < dev->caps.num_ports; i++) stype[i] = stype[i] ? stype[i] : defaults[i]; }

Contributors

PersonTokensPropCommitsCommitProp
Yevgeny Petrilin184100.00%1100.00%
Total184100.00%1100.00%


static void mlx4_sense_port(struct work_struct *work) { struct delayed_work *delay = to_delayed_work(work); struct mlx4_sense *sense = container_of(delay, struct mlx4_sense, sense_poll); struct mlx4_dev *dev = sense->dev; struct mlx4_priv *priv = mlx4_priv(dev); enum mlx4_port_type stype[MLX4_MAX_PORTS]; mutex_lock(&priv->port_mutex); mlx4_do_sense_ports(dev, stype, &dev->caps.port_type[1]); if (mlx4_check_port_params(dev, stype)) goto sense_again; if (mlx4_change_port_types(dev, stype)) mlx4_err(dev, "Failed to change port_types\n"); sense_again: mutex_unlock(&priv->port_mutex); queue_delayed_work(mlx4_wq , &sense->sense_poll, round_jiffies_relative(MLX4_SENSE_RANGE)); }

Contributors

PersonTokensPropCommitsCommitProp
Yevgeny Petrilin13999.29%150.00%
Jean Delvare10.71%150.00%
Total140100.00%2100.00%


void mlx4_start_sense(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_sense *sense = &priv->sense; if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) return; queue_delayed_work(mlx4_wq , &sense->sense_poll, round_jiffies_relative(MLX4_SENSE_RANGE)); }

Contributors

PersonTokensPropCommitsCommitProp
Yevgeny Petrilin59100.00%1100.00%
Total59100.00%1100.00%


void mlx4_stop_sense(struct mlx4_dev *dev) { cancel_delayed_work_sync(&mlx4_priv(dev)->sense.sense_poll); }

Contributors

PersonTokensPropCommitsCommitProp
Yevgeny Petrilin23100.00%1100.00%
Total23100.00%1100.00%


void mlx4_sense_init(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_sense *sense = &priv->sense; int port; sense->dev = dev; for (port = 1; port <= dev->caps.num_ports; port++) sense->do_sense_port[port] = 1; INIT_DEFERRABLE_WORK(&sense->sense_poll, mlx4_sense_port); }

Contributors

PersonTokensPropCommitsCommitProp
Yevgeny Petrilin7498.67%150.00%
Tejun Heo11.33%150.00%
Total75100.00%2100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Yevgeny Petrilin58499.15%120.00%
Jack Morgenstein20.34%120.00%
Roel Kluin10.17%120.00%
Tejun Heo10.17%120.00%
Jean Delvare10.17%120.00%
Total589100.00%5100.00%
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