Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/iir/@/ofed/drivers/net/mlx4/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/iir/@/ofed/drivers/net/mlx4/en_main.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/module.h> #include <linux/delay.h> #include <linux/netdevice.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)"); /* Number of LRO sessions per Rx ring (rounded up to a power of two) */ MLX4_EN_PARM_INT(num_lro, MLX4_EN_MAX_LRO_DESCRIPTORS, "Number of LRO sessions per ring or disabled (0)"); /* Allow reassembly of fragmented IP packets */ MLX4_EN_PARM_INT(ip_reasm, 1, "Allow reassembly of fragmented IP packets (!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"); 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.udp_rss) { mlx4_warn(mdev, "UDP RSS is not supported on this device.\n"); params->udp_rss = 0; } params->num_lro = min_t(int, num_lro , MLX4_EN_MAX_LRO_DESCRIPTORS); params->ip_reasm = ip_reasm; 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_HASH_RINGS + 1 + (!!pfcrx) * MLX4_EN_NUM_PPP_RINGS; } return 0; } static void *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); sx_destroy(&mdev->state_lock.sx); mtx_destroy(&mdev->uar_lock.m); kfree(mdev); } static void *mlx4_en_add(struct mlx4_dev *dev) { static int mlx4_en_version_printed; struct mlx4_en_dev *mdev; int i; int err; if (!mlx4_en_version_printed) { printk(KERN_INFO "%s", mlx4_en_version); mlx4_en_version_printed++; } 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; mtx_init(&mdev->uar_lock.m, "mlx4 uar", NULL, MTX_DEF); mdev->uar_map = ioremap(mdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); if (!mdev->uar_map) goto err_uar; 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 wich ports to start according to module parameters */ mdev->port_cnt = 0; mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) mdev->port_cnt++; /* If we did not receive an explicit number of Rx rings, default to * the number of completion vectors populated by the mlx4_core */ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { mlx4_info(mdev, "Using %d tx rings for port:%d\n", mdev->profile.prof[i].tx_ring_num, i); mdev->profile.prof[i].rx_ring_num = rounddown_pow_of_two( min_t(int, dev->caps.num_comp_vectors, MAX_RX_RINGS)); mlx4_info(mdev, "Defaulting to %d rx rings for port:%d\n", mdev->profile.prof[i].rx_ring_num, i); } /* 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 */ sx_init(&mdev->state_lock.sx, "mlxen state"); 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; goto err_free_netdev; } } return mdev; err_free_netdev: mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { if (mdev->pndev[i]) mlx4_en_destroy_netdev(mdev->pndev[i]); } mutex_lock(&mdev->state_lock); mdev->device_up = false; mutex_unlock(&mdev->state_lock); flush_workqueue(mdev->workqueue); /* Stop event queue before we drop down to release shared SW state */ destroy_workqueue(mdev->workqueue); err_mr: mlx4_mr_free(dev, &mdev->mr); err_uar: mtx_destroy(&mdev->uar_lock.m); 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; } enum mlx4_query_reply mlx4_en_query(void *endev_ptr, void *int_dev) { struct mlx4_en_dev *mdev = endev_ptr; struct net_device *netdev = int_dev; int p; for (p = 1; p <= MLX4_MAX_PORTS; ++p) if (mdev->pndev[p] == netdev) return p; return MLX4_QUERY_NOT_MINE; } #if 0 static struct pci_device_id mlx4_en_pci_table[] = { { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */ { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */ { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */ { PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */ { PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */ { PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */ { PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */ { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */ { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */ { PCI_VDEVICE(MELLANOX, 0x6764) }, /* MT26468 ConnectX EN 10GigE PCIe gen2 */ { PCI_VDEVICE(MELLANOX, 0x6746) }, /* MT26438 ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE Virt+ */ { PCI_VDEVICE(MELLANOX, 0x676e) }, /* MT26478 ConnectX EN 40GigE PCIe 2.0 5GT/s */ { PCI_VDEVICE(MELLANOX, 0x6778) }, /* MT26488 ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE Virt+ */ { PCI_VDEVICE(MELLANOX, 0x1000) }, { PCI_VDEVICE(MELLANOX, 0x1001) }, { PCI_VDEVICE(MELLANOX, 0x1002) }, { PCI_VDEVICE(MELLANOX, 0x1003) }, { PCI_VDEVICE(MELLANOX, 0x1004) }, { PCI_VDEVICE(MELLANOX, 0x1005) }, { PCI_VDEVICE(MELLANOX, 0x1006) }, { PCI_VDEVICE(MELLANOX, 0x1007) }, { PCI_VDEVICE(MELLANOX, 0x1008) }, { PCI_VDEVICE(MELLANOX, 0x1009) }, { PCI_VDEVICE(MELLANOX, 0x100a) }, { PCI_VDEVICE(MELLANOX, 0x100b) }, { PCI_VDEVICE(MELLANOX, 0x100c) }, { PCI_VDEVICE(MELLANOX, 0x100d) }, { PCI_VDEVICE(MELLANOX, 0x100e) }, { PCI_VDEVICE(MELLANOX, 0x100f) }, { 0, } }; MODULE_DEVICE_TABLE(pci, mlx4_en_pci_table); #endif static struct mlx4_interface mlx4_en_interface = { .add = mlx4_en_add, .remove = mlx4_en_remove, .event = mlx4_en_event, .query = mlx4_en_query, .get_prot_dev = get_netdev, .protocol = MLX4_PROT_EN, }; 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); #undef MODULE_VERSION #include <sys/module.h> static int mlxen_evhand(module_t mod, int event, void *arg) { return (0); } static moduledata_t mlxen_mod = { .name = "mlxen", .evhand = mlxen_evhand, }; DECLARE_MODULE(mlxen, mlxen_mod, SI_SUB_SMP, SI_ORDER_ANY); MODULE_DEPEND(mlxen, mlx4, 1, 1, 1);