diff options
Diffstat (limited to 'drivers/net/mlx4/en_main.c')
-rw-r--r-- | drivers/net/mlx4/en_main.c | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/drivers/net/mlx4/en_main.c b/drivers/net/mlx4/en_main.c deleted file mode 100644 index 6bfea23..0000000 --- a/drivers/net/mlx4/en_main.c +++ /dev/null @@ -1,315 +0,0 @@ -/* - * 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/cpumask.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/slab.h> - -#include <linux/mlx4/driver.h> -#include <linux/mlx4/device.h> -#include <linux/mlx4/cmd.h> - -#include "mlx4_en.h" - -MODULE_AUTHOR("Liran Liss, Yevgeny Petrilin"); -MODULE_DESCRIPTION("Mellanox ConnectX HCA Ethernet driver"); -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_VERSION(DRV_VERSION " ("DRV_RELDATE")"); - -static const char mlx4_en_version[] = - DRV_NAME ": Mellanox ConnectX HCA Ethernet driver v" - DRV_VERSION " (" DRV_RELDATE ")\n"; - -#define MLX4_EN_PARM_INT(X, def_val, desc) \ - static unsigned int X = def_val;\ - module_param(X , uint, 0444); \ - MODULE_PARM_DESC(X, desc); - - -/* - * Device scope module parameters - */ - - -/* Enable RSS TCP traffic */ -MLX4_EN_PARM_INT(tcp_rss, 1, - "Enable RSS for incomming TCP traffic or disabled (0)"); -/* Enable RSS UDP traffic */ -MLX4_EN_PARM_INT(udp_rss, 1, - "Enable RSS for incomming UDP traffic or disabled (0)"); - -/* Priority pausing */ -MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]." - " Per priority bit mask"); -MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]." - " Per priority bit mask"); - -int en_print(const char *level, const struct mlx4_en_priv *priv, - const char *format, ...) -{ - va_list args; - struct va_format vaf; - int i; - - va_start(args, format); - - vaf.fmt = format; - vaf.va = &args; - if (priv->registered) - i = printk("%s%s: %s: %pV", - level, DRV_NAME, priv->dev->name, &vaf); - else - i = printk("%s%s: %s: Port %d: %pV", - level, DRV_NAME, dev_name(&priv->mdev->pdev->dev), - priv->port, &vaf); - va_end(args); - - return i; -} - -static int mlx4_en_get_profile(struct mlx4_en_dev *mdev) -{ - struct mlx4_en_profile *params = &mdev->profile; - int i; - - params->tcp_rss = tcp_rss; - params->udp_rss = udp_rss; - if (params->udp_rss && !(mdev->dev->caps.flags - & MLX4_DEV_CAP_FLAG_UDP_RSS)) { - mlx4_warn(mdev, "UDP RSS is not supported on this device.\n"); - params->udp_rss = 0; - } - for (i = 1; i <= MLX4_MAX_PORTS; i++) { - params->prof[i].rx_pause = 1; - params->prof[i].rx_ppp = pfcrx; - params->prof[i].tx_pause = 1; - params->prof[i].tx_ppp = pfctx; - params->prof[i].tx_ring_size = MLX4_EN_DEF_TX_RING_SIZE; - params->prof[i].rx_ring_size = MLX4_EN_DEF_RX_RING_SIZE; - params->prof[i].tx_ring_num = MLX4_EN_NUM_TX_RINGS + - (!!pfcrx) * MLX4_EN_NUM_PPP_RINGS; - } - - return 0; -} - -static void *mlx4_en_get_netdev(struct mlx4_dev *dev, void *ctx, u8 port) -{ - struct mlx4_en_dev *endev = ctx; - - return endev->pndev[port]; -} - -static void mlx4_en_event(struct mlx4_dev *dev, void *endev_ptr, - enum mlx4_dev_event event, int port) -{ - struct mlx4_en_dev *mdev = (struct mlx4_en_dev *) endev_ptr; - struct mlx4_en_priv *priv; - - if (!mdev->pndev[port]) - return; - - priv = netdev_priv(mdev->pndev[port]); - switch (event) { - case MLX4_DEV_EVENT_PORT_UP: - case MLX4_DEV_EVENT_PORT_DOWN: - /* To prevent races, we poll the link state in a separate - task rather than changing it here */ - priv->link_state = event; - queue_work(mdev->workqueue, &priv->linkstate_task); - break; - - case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: - mlx4_err(mdev, "Internal error detected, restarting device\n"); - break; - - default: - mlx4_warn(mdev, "Unhandled event: %d\n", event); - } -} - -static void mlx4_en_remove(struct mlx4_dev *dev, void *endev_ptr) -{ - struct mlx4_en_dev *mdev = endev_ptr; - int i; - - mutex_lock(&mdev->state_lock); - mdev->device_up = false; - mutex_unlock(&mdev->state_lock); - - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) - if (mdev->pndev[i]) - mlx4_en_destroy_netdev(mdev->pndev[i]); - - flush_workqueue(mdev->workqueue); - destroy_workqueue(mdev->workqueue); - mlx4_mr_free(dev, &mdev->mr); - mlx4_uar_free(dev, &mdev->priv_uar); - mlx4_pd_free(dev, mdev->priv_pdn); - kfree(mdev); -} - -static void *mlx4_en_add(struct mlx4_dev *dev) -{ - struct mlx4_en_dev *mdev; - int i; - int err; - - printk_once(KERN_INFO "%s", mlx4_en_version); - - mdev = kzalloc(sizeof *mdev, GFP_KERNEL); - if (!mdev) { - dev_err(&dev->pdev->dev, "Device struct alloc failed, " - "aborting.\n"); - err = -ENOMEM; - goto err_free_res; - } - - if (mlx4_pd_alloc(dev, &mdev->priv_pdn)) - goto err_free_dev; - - if (mlx4_uar_alloc(dev, &mdev->priv_uar)) - goto err_pd; - - mdev->uar_map = ioremap((phys_addr_t) mdev->priv_uar.pfn << PAGE_SHIFT, - PAGE_SIZE); - if (!mdev->uar_map) - goto err_uar; - spin_lock_init(&mdev->uar_lock); - - mdev->dev = dev; - mdev->dma_device = &(dev->pdev->dev); - mdev->pdev = dev->pdev; - mdev->device_up = false; - - mdev->LSO_support = !!(dev->caps.flags & (1 << 15)); - if (!mdev->LSO_support) - mlx4_warn(mdev, "LSO not supported, please upgrade to later " - "FW version to enable LSO\n"); - - if (mlx4_mr_alloc(mdev->dev, mdev->priv_pdn, 0, ~0ull, - MLX4_PERM_LOCAL_WRITE | MLX4_PERM_LOCAL_READ, - 0, 0, &mdev->mr)) { - mlx4_err(mdev, "Failed allocating memory region\n"); - goto err_uar; - } - if (mlx4_mr_enable(mdev->dev, &mdev->mr)) { - mlx4_err(mdev, "Failed enabling memory region\n"); - goto err_mr; - } - - /* Build device profile according to supplied module parameters */ - err = mlx4_en_get_profile(mdev); - if (err) { - mlx4_err(mdev, "Bad module parameters, aborting.\n"); - goto err_mr; - } - - /* Configure which ports to start according to module parameters */ - mdev->port_cnt = 0; - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) - mdev->port_cnt++; - - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { - if (!dev->caps.comp_pool) { - mdev->profile.prof[i].rx_ring_num = - rounddown_pow_of_two(max_t(int, MIN_RX_RINGS, - min_t(int, - dev->caps.num_comp_vectors, - MAX_RX_RINGS))); - } else { - mdev->profile.prof[i].rx_ring_num = rounddown_pow_of_two( - min_t(int, dev->caps.comp_pool/ - dev->caps.num_ports - 1 , MAX_MSIX_P_PORT - 1)); - } - } - - /* Create our own workqueue for reset/multicast tasks - * Note: we cannot use the shared workqueue because of deadlocks caused - * by the rtnl lock */ - mdev->workqueue = create_singlethread_workqueue("mlx4_en"); - if (!mdev->workqueue) { - err = -ENOMEM; - goto err_mr; - } - - /* At this stage all non-port specific tasks are complete: - * mark the card state as up */ - mutex_init(&mdev->state_lock); - mdev->device_up = true; - - /* Setup ports */ - - /* Create a netdev for each port */ - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { - mlx4_info(mdev, "Activating port:%d\n", i); - if (mlx4_en_init_netdev(mdev, i, &mdev->profile.prof[i])) - mdev->pndev[i] = NULL; - } - return mdev; - -err_mr: - mlx4_mr_free(dev, &mdev->mr); -err_uar: - mlx4_uar_free(dev, &mdev->priv_uar); -err_pd: - mlx4_pd_free(dev, mdev->priv_pdn); -err_free_dev: - kfree(mdev); -err_free_res: - return NULL; -} - -static struct mlx4_interface mlx4_en_interface = { - .add = mlx4_en_add, - .remove = mlx4_en_remove, - .event = mlx4_en_event, - .get_dev = mlx4_en_get_netdev, - .protocol = MLX4_PROT_ETH, -}; - -static int __init mlx4_en_init(void) -{ - return mlx4_register_interface(&mlx4_en_interface); -} - -static void __exit mlx4_en_cleanup(void) -{ - mlx4_unregister_interface(&mlx4_en_interface); -} - -module_init(mlx4_en_init); -module_exit(mlx4_en_cleanup); - |