825b7d4c9d
The LinuxKPI net_device actually is an ifnet; in order to further clean that up so we can extend "net_device" migrate the few macros left into ofed and make sure the header is included in all files which need access to the macros. Sponsored by: The FreeBSD Foundation MFC after: 12 days Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D30477
1439 lines
34 KiB
C
1439 lines
34 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
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*
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* Copyright (c) 2004 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "ipoib.h"
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#include <sys/eventhandler.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#include <linux/vmalloc.h>
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#include <linux/if_vlan.h>
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#include <net/infiniband.h>
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#include <rdma/ib_addr.h>
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#include <rdma/ib_cache.h>
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MODULE_AUTHOR("Roland Dreier");
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MODULE_DESCRIPTION("IP-over-InfiniBand net driver");
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MODULE_LICENSE("Dual BSD/GPL");
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int ipoib_sendq_size = IPOIB_TX_RING_SIZE;
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int ipoib_recvq_size = IPOIB_RX_RING_SIZE;
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module_param_named(send_queue_size, ipoib_sendq_size, int, 0444);
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MODULE_PARM_DESC(send_queue_size, "Number of descriptors in send queue");
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module_param_named(recv_queue_size, ipoib_recvq_size, int, 0444);
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MODULE_PARM_DESC(recv_queue_size, "Number of descriptors in receive queue");
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#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
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int ipoib_debug_level = 1;
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module_param_named(debug_level, ipoib_debug_level, int, 0644);
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MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
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#endif
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struct ipoib_path_iter {
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struct ipoib_dev_priv *priv;
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struct ipoib_path path;
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};
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static const u8 ipv4_bcast_addr[] = {
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0x00, 0xff, 0xff, 0xff,
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0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
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};
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struct workqueue_struct *ipoib_workqueue;
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struct ib_sa_client ipoib_sa_client;
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static void ipoib_add_one(struct ib_device *device);
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static void ipoib_remove_one(struct ib_device *device, void *client_data);
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static struct net_device *ipoib_get_net_dev_by_params(
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struct ib_device *dev, u8 port, u16 pkey,
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const union ib_gid *gid, const struct sockaddr *addr,
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void *client_data);
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static void ipoib_start(struct ifnet *dev);
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static int ipoib_ioctl(struct ifnet *ifp, u_long command, caddr_t data);
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static struct unrhdr *ipoib_unrhdr;
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static void
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ipoib_unrhdr_init(void *arg)
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{
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ipoib_unrhdr = new_unrhdr(0, 65535, NULL);
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}
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SYSINIT(ipoib_unrhdr_init, SI_SUB_KLD - 1, SI_ORDER_ANY, ipoib_unrhdr_init, NULL);
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static void
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ipoib_unrhdr_uninit(void *arg)
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{
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if (ipoib_unrhdr != NULL) {
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struct unrhdr *hdr;
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hdr = ipoib_unrhdr;
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ipoib_unrhdr = NULL;
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delete_unrhdr(hdr);
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}
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}
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SYSUNINIT(ipoib_unrhdr_uninit, SI_SUB_KLD - 1, SI_ORDER_ANY, ipoib_unrhdr_uninit, NULL);
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static struct ib_client ipoib_client = {
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.name = "ipoib",
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.add = ipoib_add_one,
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.remove = ipoib_remove_one,
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.get_net_dev_by_params = ipoib_get_net_dev_by_params,
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};
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int
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ipoib_open(struct ipoib_dev_priv *priv)
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{
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struct ifnet *dev = priv->dev;
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ipoib_dbg(priv, "bringing up interface\n");
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set_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
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if (ipoib_pkey_dev_delay_open(priv))
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return 0;
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if (ipoib_ib_dev_open(priv))
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goto err_disable;
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if (ipoib_ib_dev_up(priv))
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goto err_stop;
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if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
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struct ipoib_dev_priv *cpriv;
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/* Bring up any child interfaces too */
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mutex_lock(&priv->vlan_mutex);
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list_for_each_entry(cpriv, &priv->child_intfs, list)
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if ((cpriv->dev->if_drv_flags & IFF_DRV_RUNNING) == 0)
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ipoib_open(cpriv);
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mutex_unlock(&priv->vlan_mutex);
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}
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dev->if_drv_flags |= IFF_DRV_RUNNING;
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dev->if_drv_flags &= ~IFF_DRV_OACTIVE;
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return 0;
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err_stop:
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ipoib_ib_dev_stop(priv, 1);
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err_disable:
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clear_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
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return -EINVAL;
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}
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static void
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ipoib_init(void *arg)
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{
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struct ifnet *dev;
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struct ipoib_dev_priv *priv;
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priv = arg;
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dev = priv->dev;
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if ((dev->if_drv_flags & IFF_DRV_RUNNING) == 0)
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ipoib_open(priv);
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queue_work(ipoib_workqueue, &priv->flush_light);
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}
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static int
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ipoib_stop(struct ipoib_dev_priv *priv)
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{
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struct ifnet *dev = priv->dev;
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ipoib_dbg(priv, "stopping interface\n");
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clear_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
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dev->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
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ipoib_ib_dev_down(priv, 0);
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ipoib_ib_dev_stop(priv, 0);
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if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
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struct ipoib_dev_priv *cpriv;
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/* Bring down any child interfaces too */
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mutex_lock(&priv->vlan_mutex);
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list_for_each_entry(cpriv, &priv->child_intfs, list)
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if ((cpriv->dev->if_drv_flags & IFF_DRV_RUNNING) != 0)
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ipoib_stop(cpriv);
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mutex_unlock(&priv->vlan_mutex);
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}
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return 0;
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}
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static int
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ipoib_propagate_ifnet_mtu(struct ipoib_dev_priv *priv, int new_mtu,
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bool propagate)
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{
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struct ifnet *ifp;
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struct ifreq ifr;
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int error;
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ifp = priv->dev;
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if (ifp->if_mtu == new_mtu)
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return (0);
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if (propagate) {
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strlcpy(ifr.ifr_name, if_name(ifp), IFNAMSIZ);
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ifr.ifr_mtu = new_mtu;
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CURVNET_SET(ifp->if_vnet);
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error = ifhwioctl(SIOCSIFMTU, ifp, (caddr_t)&ifr, curthread);
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CURVNET_RESTORE();
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} else {
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ifp->if_mtu = new_mtu;
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error = 0;
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}
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return (error);
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}
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int
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ipoib_change_mtu(struct ipoib_dev_priv *priv, int new_mtu, bool propagate)
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{
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int error, prev_admin_mtu;
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/* dev->if_mtu > 2K ==> connected mode */
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if (ipoib_cm_admin_enabled(priv)) {
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if (new_mtu > IPOIB_CM_MTU(ipoib_cm_max_mtu(priv)))
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return -EINVAL;
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if (new_mtu > priv->mcast_mtu)
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ipoib_warn(priv, "mtu > %d will cause multicast packet drops.\n",
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priv->mcast_mtu);
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return (ipoib_propagate_ifnet_mtu(priv, new_mtu, propagate));
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}
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if (new_mtu > IPOIB_UD_MTU(priv->max_ib_mtu))
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return -EINVAL;
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prev_admin_mtu = priv->admin_mtu;
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priv->admin_mtu = new_mtu;
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error = ipoib_propagate_ifnet_mtu(priv, min(priv->mcast_mtu,
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priv->admin_mtu), propagate);
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if (error == 0) {
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/* check for MTU change to avoid infinite loop */
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if (prev_admin_mtu != new_mtu)
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queue_work(ipoib_workqueue, &priv->flush_light);
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} else
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priv->admin_mtu = prev_admin_mtu;
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return (error);
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}
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static int
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ipoib_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
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{
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struct ipoib_dev_priv *priv = ifp->if_softc;
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struct ifaddr *ifa = (struct ifaddr *) data;
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struct ifreq *ifr = (struct ifreq *) data;
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int error = 0;
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/* check if detaching */
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if (priv == NULL || priv->gone != 0)
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return (ENXIO);
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switch (command) {
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case SIOCSIFFLAGS:
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if (ifp->if_flags & IFF_UP) {
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if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
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error = -ipoib_open(priv);
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} else
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if (ifp->if_drv_flags & IFF_DRV_RUNNING)
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ipoib_stop(priv);
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break;
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case SIOCADDMULTI:
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case SIOCDELMULTI:
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if (ifp->if_drv_flags & IFF_DRV_RUNNING)
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queue_work(ipoib_workqueue, &priv->restart_task);
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break;
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case SIOCSIFADDR:
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ifp->if_flags |= IFF_UP;
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switch (ifa->ifa_addr->sa_family) {
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#ifdef INET
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case AF_INET:
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ifp->if_init(ifp->if_softc); /* before arpwhohas */
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arp_ifinit(ifp, ifa);
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break;
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#endif
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default:
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ifp->if_init(ifp->if_softc);
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break;
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}
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break;
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case SIOCGIFADDR:
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bcopy(IF_LLADDR(ifp), &ifr->ifr_addr.sa_data[0],
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INFINIBAND_ALEN);
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break;
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case SIOCSIFMTU:
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/*
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* Set the interface MTU.
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*/
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error = -ipoib_change_mtu(priv, ifr->ifr_mtu, false);
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break;
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default:
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error = EINVAL;
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break;
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}
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return (error);
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}
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static struct ipoib_path *
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__path_find(struct ipoib_dev_priv *priv, void *gid)
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{
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struct rb_node *n = priv->path_tree.rb_node;
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struct ipoib_path *path;
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int ret;
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while (n) {
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path = rb_entry(n, struct ipoib_path, rb_node);
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ret = memcmp(gid, path->pathrec.dgid.raw,
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sizeof (union ib_gid));
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if (ret < 0)
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n = n->rb_left;
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else if (ret > 0)
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n = n->rb_right;
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else
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return path;
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}
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return NULL;
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}
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static int
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__path_add(struct ipoib_dev_priv *priv, struct ipoib_path *path)
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{
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struct rb_node **n = &priv->path_tree.rb_node;
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struct rb_node *pn = NULL;
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struct ipoib_path *tpath;
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int ret;
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while (*n) {
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pn = *n;
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tpath = rb_entry(pn, struct ipoib_path, rb_node);
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ret = memcmp(path->pathrec.dgid.raw, tpath->pathrec.dgid.raw,
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sizeof (union ib_gid));
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if (ret < 0)
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n = &pn->rb_left;
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else if (ret > 0)
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n = &pn->rb_right;
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else
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return -EEXIST;
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}
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rb_link_node(&path->rb_node, pn, n);
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rb_insert_color(&path->rb_node, &priv->path_tree);
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list_add_tail(&path->list, &priv->path_list);
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return 0;
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}
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void
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ipoib_path_free(struct ipoib_dev_priv *priv, struct ipoib_path *path)
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{
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_IF_DRAIN(&path->queue);
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if (path->ah)
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ipoib_put_ah(path->ah);
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if (ipoib_cm_get(path))
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ipoib_cm_destroy_tx(ipoib_cm_get(path));
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kfree(path);
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}
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#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
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struct ipoib_path_iter *
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ipoib_path_iter_init(struct ipoib_dev_priv *priv)
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{
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struct ipoib_path_iter *iter;
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iter = kmalloc(sizeof *iter, GFP_KERNEL);
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if (!iter)
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return NULL;
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iter->priv = priv;
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memset(iter->path.pathrec.dgid.raw, 0, 16);
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if (ipoib_path_iter_next(iter)) {
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kfree(iter);
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return NULL;
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}
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return iter;
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}
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int
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ipoib_path_iter_next(struct ipoib_path_iter *iter)
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{
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struct ipoib_dev_priv *priv = iter->priv;
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struct rb_node *n;
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struct ipoib_path *path;
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int ret = 1;
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spin_lock_irq(&priv->lock);
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n = rb_first(&priv->path_tree);
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while (n) {
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path = rb_entry(n, struct ipoib_path, rb_node);
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if (memcmp(iter->path.pathrec.dgid.raw, path->pathrec.dgid.raw,
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sizeof (union ib_gid)) < 0) {
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iter->path = *path;
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ret = 0;
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break;
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}
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n = rb_next(n);
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}
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spin_unlock_irq(&priv->lock);
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return ret;
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}
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void
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ipoib_path_iter_read(struct ipoib_path_iter *iter, struct ipoib_path *path)
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{
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*path = iter->path;
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}
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#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
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|
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void
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ipoib_mark_paths_invalid(struct ipoib_dev_priv *priv)
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{
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struct ipoib_path *path, *tp;
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spin_lock_irq(&priv->lock);
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list_for_each_entry_safe(path, tp, &priv->path_list, list) {
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ipoib_dbg(priv, "mark path LID 0x%04x GID %16D invalid\n",
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be16_to_cpu(path->pathrec.dlid),
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path->pathrec.dgid.raw, ":");
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path->valid = 0;
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}
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spin_unlock_irq(&priv->lock);
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}
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|
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void
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ipoib_flush_paths(struct ipoib_dev_priv *priv)
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{
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struct ipoib_path *path, *tp;
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LIST_HEAD(remove_list);
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unsigned long flags;
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spin_lock_irqsave(&priv->lock, flags);
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list_splice_init(&priv->path_list, &remove_list);
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list_for_each_entry(path, &remove_list, list)
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rb_erase(&path->rb_node, &priv->path_tree);
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list_for_each_entry_safe(path, tp, &remove_list, list) {
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if (path->query)
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ib_sa_cancel_query(path->query_id, path->query);
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spin_unlock_irqrestore(&priv->lock, flags);
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wait_for_completion(&path->done);
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ipoib_path_free(priv, path);
|
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spin_lock_irqsave(&priv->lock, flags);
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}
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|
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spin_unlock_irqrestore(&priv->lock, flags);
|
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}
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|
|
static void
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path_rec_completion(int status, struct ib_sa_path_rec *pathrec, void *path_ptr)
|
|
{
|
|
struct ipoib_path *path = path_ptr;
|
|
struct ipoib_dev_priv *priv = path->priv;
|
|
struct ifnet *dev = priv->dev;
|
|
struct ipoib_ah *ah = NULL;
|
|
struct ipoib_ah *old_ah = NULL;
|
|
struct epoch_tracker et;
|
|
struct ifqueue mbqueue;
|
|
struct mbuf *mb;
|
|
unsigned long flags;
|
|
|
|
if (!status)
|
|
ipoib_dbg(priv, "PathRec LID 0x%04x for GID %16D\n",
|
|
be16_to_cpu(pathrec->dlid), pathrec->dgid.raw, ":");
|
|
else
|
|
ipoib_dbg(priv, "PathRec status %d for GID %16D\n",
|
|
status, path->pathrec.dgid.raw, ":");
|
|
|
|
bzero(&mbqueue, sizeof(mbqueue));
|
|
|
|
if (!status) {
|
|
struct ib_ah_attr av;
|
|
|
|
if (!ib_init_ah_from_path(priv->ca, priv->port, pathrec, &av))
|
|
ah = ipoib_create_ah(priv, priv->pd, &av);
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
if (ah) {
|
|
path->pathrec = *pathrec;
|
|
|
|
old_ah = path->ah;
|
|
path->ah = ah;
|
|
|
|
ipoib_dbg(priv, "created address handle %p for LID 0x%04x, SL %d\n",
|
|
ah, be16_to_cpu(pathrec->dlid), pathrec->sl);
|
|
|
|
for (;;) {
|
|
_IF_DEQUEUE(&path->queue, mb);
|
|
if (mb == NULL)
|
|
break;
|
|
_IF_ENQUEUE(&mbqueue, mb);
|
|
}
|
|
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_CM
|
|
if (ipoib_cm_enabled(priv, path->hwaddr) && !ipoib_cm_get(path))
|
|
ipoib_cm_set(path, ipoib_cm_create_tx(priv, path));
|
|
#endif
|
|
|
|
path->valid = 1;
|
|
}
|
|
|
|
path->query = NULL;
|
|
complete(&path->done);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
if (old_ah)
|
|
ipoib_put_ah(old_ah);
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
for (;;) {
|
|
_IF_DEQUEUE(&mbqueue, mb);
|
|
if (mb == NULL)
|
|
break;
|
|
mb->m_pkthdr.rcvif = dev;
|
|
if (dev->if_transmit(dev, mb))
|
|
ipoib_warn(priv, "dev_queue_xmit failed "
|
|
"to requeue packet\n");
|
|
}
|
|
NET_EPOCH_EXIT(et);
|
|
}
|
|
|
|
static struct ipoib_path *
|
|
path_rec_create(struct ipoib_dev_priv *priv, uint8_t *hwaddr)
|
|
{
|
|
struct ipoib_path *path;
|
|
|
|
if (!priv->broadcast)
|
|
return NULL;
|
|
|
|
path = kzalloc(sizeof *path, GFP_ATOMIC);
|
|
if (!path)
|
|
return NULL;
|
|
|
|
path->priv = priv;
|
|
|
|
bzero(&path->queue, sizeof(path->queue));
|
|
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_CM
|
|
memcpy(&path->hwaddr, hwaddr, INFINIBAND_ALEN);
|
|
#endif
|
|
memcpy(path->pathrec.dgid.raw, &hwaddr[4], sizeof (union ib_gid));
|
|
path->pathrec.sgid = priv->local_gid;
|
|
path->pathrec.pkey = cpu_to_be16(priv->pkey);
|
|
path->pathrec.numb_path = 1;
|
|
path->pathrec.traffic_class = priv->broadcast->mcmember.traffic_class;
|
|
|
|
return path;
|
|
}
|
|
|
|
static int
|
|
path_rec_start(struct ipoib_dev_priv *priv, struct ipoib_path *path)
|
|
{
|
|
struct ifnet *dev = priv->dev;
|
|
|
|
ib_sa_comp_mask comp_mask = IB_SA_PATH_REC_MTU_SELECTOR | IB_SA_PATH_REC_MTU;
|
|
struct ib_sa_path_rec p_rec;
|
|
|
|
p_rec = path->pathrec;
|
|
p_rec.mtu_selector = IB_SA_GT;
|
|
|
|
switch (roundup_pow_of_two(dev->if_mtu + IPOIB_ENCAP_LEN)) {
|
|
case 512:
|
|
p_rec.mtu = IB_MTU_256;
|
|
break;
|
|
case 1024:
|
|
p_rec.mtu = IB_MTU_512;
|
|
break;
|
|
case 2048:
|
|
p_rec.mtu = IB_MTU_1024;
|
|
break;
|
|
case 4096:
|
|
p_rec.mtu = IB_MTU_2048;
|
|
break;
|
|
default:
|
|
/* Wildcard everything */
|
|
comp_mask = 0;
|
|
p_rec.mtu = 0;
|
|
p_rec.mtu_selector = 0;
|
|
}
|
|
|
|
ipoib_dbg(priv, "Start path record lookup for %16D MTU > %d\n",
|
|
p_rec.dgid.raw, ":",
|
|
comp_mask ? ib_mtu_enum_to_int(p_rec.mtu) : 0);
|
|
|
|
init_completion(&path->done);
|
|
|
|
path->query_id =
|
|
ib_sa_path_rec_get(&ipoib_sa_client, priv->ca, priv->port,
|
|
&p_rec, comp_mask |
|
|
IB_SA_PATH_REC_DGID |
|
|
IB_SA_PATH_REC_SGID |
|
|
IB_SA_PATH_REC_NUMB_PATH |
|
|
IB_SA_PATH_REC_TRAFFIC_CLASS |
|
|
IB_SA_PATH_REC_PKEY,
|
|
1000, GFP_ATOMIC,
|
|
path_rec_completion,
|
|
path, &path->query);
|
|
if (path->query_id < 0) {
|
|
ipoib_warn(priv, "ib_sa_path_rec_get failed: %d\n", path->query_id);
|
|
path->query = NULL;
|
|
complete(&path->done);
|
|
return path->query_id;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ipoib_unicast_send(struct mbuf *mb, struct ipoib_dev_priv *priv, struct ipoib_header *eh)
|
|
{
|
|
struct ipoib_path *path;
|
|
|
|
path = __path_find(priv, eh->hwaddr + 4);
|
|
if (!path || !path->valid) {
|
|
int new_path = 0;
|
|
|
|
if (!path) {
|
|
path = path_rec_create(priv, eh->hwaddr);
|
|
new_path = 1;
|
|
}
|
|
if (path) {
|
|
if (_IF_QLEN(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE)
|
|
_IF_ENQUEUE(&path->queue, mb);
|
|
else {
|
|
if_inc_counter(priv->dev, IFCOUNTER_OERRORS, 1);
|
|
m_freem(mb);
|
|
}
|
|
|
|
if (!path->query && path_rec_start(priv, path)) {
|
|
if (new_path)
|
|
ipoib_path_free(priv, path);
|
|
return;
|
|
} else
|
|
__path_add(priv, path);
|
|
} else {
|
|
if_inc_counter(priv->dev, IFCOUNTER_OERRORS, 1);
|
|
m_freem(mb);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (ipoib_cm_get(path) && ipoib_cm_up(path)) {
|
|
ipoib_cm_send(priv, mb, ipoib_cm_get(path));
|
|
} else if (path->ah) {
|
|
ipoib_send(priv, mb, path->ah, IPOIB_QPN(eh->hwaddr));
|
|
} else if ((path->query || !path_rec_start(priv, path)) &&
|
|
path->queue.ifq_len < IPOIB_MAX_PATH_REC_QUEUE) {
|
|
_IF_ENQUEUE(&path->queue, mb);
|
|
} else {
|
|
if_inc_counter(priv->dev, IFCOUNTER_OERRORS, 1);
|
|
m_freem(mb);
|
|
}
|
|
}
|
|
|
|
static int
|
|
ipoib_send_one(struct ipoib_dev_priv *priv, struct mbuf *mb)
|
|
{
|
|
struct ipoib_header *eh;
|
|
|
|
eh = mtod(mb, struct ipoib_header *);
|
|
if (IPOIB_IS_MULTICAST(eh->hwaddr)) {
|
|
/* Add in the P_Key for multicast*/
|
|
eh->hwaddr[8] = (priv->pkey >> 8) & 0xff;
|
|
eh->hwaddr[9] = priv->pkey & 0xff;
|
|
|
|
ipoib_mcast_send(priv, eh->hwaddr + 4, mb);
|
|
} else
|
|
ipoib_unicast_send(mb, priv, eh);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
ipoib_start_locked(struct ifnet *dev, struct ipoib_dev_priv *priv)
|
|
{
|
|
struct mbuf *mb;
|
|
|
|
assert_spin_locked(&priv->lock);
|
|
|
|
while (!IFQ_DRV_IS_EMPTY(&dev->if_snd) &&
|
|
(dev->if_drv_flags & IFF_DRV_OACTIVE) == 0) {
|
|
IFQ_DRV_DEQUEUE(&dev->if_snd, mb);
|
|
if (mb == NULL)
|
|
break;
|
|
INFINIBAND_BPF_MTAP(dev, mb);
|
|
ipoib_send_one(priv, mb);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_ipoib_start(struct ifnet *dev, struct ipoib_dev_priv *priv)
|
|
{
|
|
|
|
if ((dev->if_drv_flags & (IFF_DRV_RUNNING|IFF_DRV_OACTIVE)) !=
|
|
IFF_DRV_RUNNING)
|
|
return;
|
|
|
|
spin_lock(&priv->lock);
|
|
ipoib_start_locked(dev, priv);
|
|
spin_unlock(&priv->lock);
|
|
}
|
|
|
|
static void
|
|
ipoib_start(struct ifnet *dev)
|
|
{
|
|
_ipoib_start(dev, dev->if_softc);
|
|
}
|
|
|
|
static void
|
|
ipoib_vlan_start(struct ifnet *dev)
|
|
{
|
|
struct ipoib_dev_priv *priv;
|
|
struct mbuf *mb;
|
|
|
|
priv = VLAN_COOKIE(dev);
|
|
if (priv != NULL)
|
|
return _ipoib_start(dev, priv);
|
|
while (!IFQ_DRV_IS_EMPTY(&dev->if_snd)) {
|
|
IFQ_DRV_DEQUEUE(&dev->if_snd, mb);
|
|
if (mb == NULL)
|
|
break;
|
|
m_freem(mb);
|
|
if_inc_counter(dev, IFCOUNTER_OERRORS, 1);
|
|
}
|
|
}
|
|
|
|
int
|
|
ipoib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, int port)
|
|
{
|
|
|
|
/* Allocate RX/TX "rings" to hold queued mbs */
|
|
priv->rx_ring = kzalloc(ipoib_recvq_size * sizeof *priv->rx_ring,
|
|
GFP_KERNEL);
|
|
if (!priv->rx_ring) {
|
|
printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n",
|
|
ca->name, ipoib_recvq_size);
|
|
goto out;
|
|
}
|
|
|
|
priv->tx_ring = kzalloc(ipoib_sendq_size * sizeof *priv->tx_ring, GFP_KERNEL);
|
|
if (!priv->tx_ring) {
|
|
printk(KERN_WARNING "%s: failed to allocate TX ring (%d entries)\n",
|
|
ca->name, ipoib_sendq_size);
|
|
goto out_rx_ring_cleanup;
|
|
}
|
|
memset(priv->tx_ring, 0, ipoib_sendq_size * sizeof *priv->tx_ring);
|
|
|
|
/* priv->tx_head, tx_tail & tx_outstanding are already 0 */
|
|
|
|
if (ipoib_ib_dev_init(priv, ca, port))
|
|
goto out_tx_ring_cleanup;
|
|
|
|
return 0;
|
|
|
|
out_tx_ring_cleanup:
|
|
kfree(priv->tx_ring);
|
|
|
|
out_rx_ring_cleanup:
|
|
kfree(priv->rx_ring);
|
|
|
|
out:
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void
|
|
ipoib_detach(struct ipoib_dev_priv *priv)
|
|
{
|
|
struct ifnet *dev;
|
|
|
|
dev = priv->dev;
|
|
if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
|
|
priv->gone = 1;
|
|
infiniband_ifdetach(dev);
|
|
if_free(dev);
|
|
free_unr(ipoib_unrhdr, priv->unit);
|
|
} else
|
|
VLAN_SETCOOKIE(priv->dev, NULL);
|
|
|
|
free(priv, M_TEMP);
|
|
}
|
|
|
|
void
|
|
ipoib_dev_cleanup(struct ipoib_dev_priv *priv)
|
|
{
|
|
struct ipoib_dev_priv *cpriv, *tcpriv;
|
|
|
|
/* Delete any child interfaces first */
|
|
list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
|
|
ipoib_dev_cleanup(cpriv);
|
|
ipoib_detach(cpriv);
|
|
}
|
|
|
|
ipoib_ib_dev_cleanup(priv);
|
|
|
|
kfree(priv->rx_ring);
|
|
kfree(priv->tx_ring);
|
|
|
|
priv->rx_ring = NULL;
|
|
priv->tx_ring = NULL;
|
|
}
|
|
|
|
static struct ipoib_dev_priv *
|
|
ipoib_priv_alloc(void)
|
|
{
|
|
struct ipoib_dev_priv *priv;
|
|
|
|
priv = malloc(sizeof(struct ipoib_dev_priv), M_TEMP, M_ZERO|M_WAITOK);
|
|
spin_lock_init(&priv->lock);
|
|
spin_lock_init(&priv->drain_lock);
|
|
mutex_init(&priv->vlan_mutex);
|
|
INIT_LIST_HEAD(&priv->path_list);
|
|
INIT_LIST_HEAD(&priv->child_intfs);
|
|
INIT_LIST_HEAD(&priv->dead_ahs);
|
|
INIT_LIST_HEAD(&priv->multicast_list);
|
|
INIT_DELAYED_WORK(&priv->pkey_poll_task, ipoib_pkey_poll);
|
|
INIT_DELAYED_WORK(&priv->mcast_task, ipoib_mcast_join_task);
|
|
INIT_WORK(&priv->carrier_on_task, ipoib_mcast_carrier_on_task);
|
|
INIT_WORK(&priv->flush_light, ipoib_ib_dev_flush_light);
|
|
INIT_WORK(&priv->flush_normal, ipoib_ib_dev_flush_normal);
|
|
INIT_WORK(&priv->flush_heavy, ipoib_ib_dev_flush_heavy);
|
|
INIT_WORK(&priv->restart_task, ipoib_mcast_restart_task);
|
|
INIT_DELAYED_WORK(&priv->ah_reap_task, ipoib_reap_ah);
|
|
memcpy(priv->broadcastaddr, ipv4_bcast_addr, INFINIBAND_ALEN);
|
|
|
|
return (priv);
|
|
}
|
|
|
|
struct ipoib_dev_priv *
|
|
ipoib_intf_alloc(const char *name)
|
|
{
|
|
struct ipoib_dev_priv *priv;
|
|
struct ifnet *dev;
|
|
|
|
priv = ipoib_priv_alloc();
|
|
dev = priv->dev = if_alloc(IFT_INFINIBAND);
|
|
if (!dev) {
|
|
free(priv, M_TEMP);
|
|
return NULL;
|
|
}
|
|
dev->if_softc = priv;
|
|
priv->unit = alloc_unr(ipoib_unrhdr);
|
|
if (priv->unit == -1) {
|
|
if_free(dev);
|
|
free(priv, M_TEMP);
|
|
return NULL;
|
|
}
|
|
if_initname(dev, name, priv->unit);
|
|
dev->if_flags = IFF_BROADCAST | IFF_MULTICAST;
|
|
|
|
infiniband_ifattach(dev, NULL, priv->broadcastaddr);
|
|
|
|
dev->if_init = ipoib_init;
|
|
dev->if_ioctl = ipoib_ioctl;
|
|
dev->if_start = ipoib_start;
|
|
|
|
dev->if_snd.ifq_maxlen = ipoib_sendq_size * 2;
|
|
|
|
priv->dev = dev;
|
|
if_link_state_change(dev, LINK_STATE_DOWN);
|
|
|
|
return dev->if_softc;
|
|
}
|
|
|
|
int
|
|
ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca)
|
|
{
|
|
struct ib_device_attr *device_attr = &hca->attrs;
|
|
|
|
priv->hca_caps = device_attr->device_cap_flags;
|
|
|
|
priv->dev->if_hwassist = 0;
|
|
priv->dev->if_capabilities = 0;
|
|
|
|
#ifndef CONFIG_INFINIBAND_IPOIB_CM
|
|
if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
|
|
set_bit(IPOIB_FLAG_CSUM, &priv->flags);
|
|
priv->dev->if_hwassist = CSUM_IP | CSUM_TCP | CSUM_UDP;
|
|
priv->dev->if_capabilities = IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM;
|
|
}
|
|
|
|
#if 0
|
|
if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO) {
|
|
priv->dev->if_capabilities |= IFCAP_TSO4;
|
|
priv->dev->if_hwassist |= CSUM_TSO;
|
|
}
|
|
#endif
|
|
#endif
|
|
priv->dev->if_capabilities |=
|
|
IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU | IFCAP_LINKSTATE;
|
|
priv->dev->if_capenable = priv->dev->if_capabilities;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static struct ifnet *
|
|
ipoib_add_port(const char *format, struct ib_device *hca, u8 port)
|
|
{
|
|
struct ipoib_dev_priv *priv;
|
|
struct ib_port_attr attr;
|
|
int result = -ENOMEM;
|
|
|
|
priv = ipoib_intf_alloc(format);
|
|
if (!priv)
|
|
goto alloc_mem_failed;
|
|
|
|
if (!ib_query_port(hca, port, &attr))
|
|
priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu);
|
|
else {
|
|
printk(KERN_WARNING "%s: ib_query_port %d failed\n",
|
|
hca->name, port);
|
|
goto device_init_failed;
|
|
}
|
|
|
|
/* MTU will be reset when mcast join happens */
|
|
priv->dev->if_mtu = IPOIB_UD_MTU(priv->max_ib_mtu);
|
|
priv->mcast_mtu = priv->admin_mtu = priv->dev->if_mtu;
|
|
|
|
result = ib_query_pkey(hca, port, 0, &priv->pkey);
|
|
if (result) {
|
|
printk(KERN_WARNING "%s: ib_query_pkey port %d failed (ret = %d)\n",
|
|
hca->name, port, result);
|
|
goto device_init_failed;
|
|
}
|
|
|
|
if (ipoib_set_dev_features(priv, hca))
|
|
goto device_init_failed;
|
|
|
|
/*
|
|
* Set the full membership bit, so that we join the right
|
|
* broadcast group, etc.
|
|
*/
|
|
priv->pkey |= 0x8000;
|
|
|
|
priv->broadcastaddr[8] = priv->pkey >> 8;
|
|
priv->broadcastaddr[9] = priv->pkey & 0xff;
|
|
|
|
result = ib_query_gid(hca, port, 0, &priv->local_gid, NULL);
|
|
if (result) {
|
|
printk(KERN_WARNING "%s: ib_query_gid port %d failed (ret = %d)\n",
|
|
hca->name, port, result);
|
|
goto device_init_failed;
|
|
}
|
|
memcpy(IF_LLADDR(priv->dev) + 4, priv->local_gid.raw, sizeof (union ib_gid));
|
|
|
|
result = ipoib_dev_init(priv, hca, port);
|
|
if (result < 0) {
|
|
printk(KERN_WARNING "%s: failed to initialize port %d (ret = %d)\n",
|
|
hca->name, port, result);
|
|
goto device_init_failed;
|
|
}
|
|
if (ipoib_cm_admin_enabled(priv))
|
|
priv->dev->if_mtu = IPOIB_CM_MTU(ipoib_cm_max_mtu(priv));
|
|
|
|
INIT_IB_EVENT_HANDLER(&priv->event_handler,
|
|
priv->ca, ipoib_event);
|
|
result = ib_register_event_handler(&priv->event_handler);
|
|
if (result < 0) {
|
|
printk(KERN_WARNING "%s: ib_register_event_handler failed for "
|
|
"port %d (ret = %d)\n",
|
|
hca->name, port, result);
|
|
goto event_failed;
|
|
}
|
|
if_printf(priv->dev, "Attached to %s port %d\n", hca->name, port);
|
|
|
|
return priv->dev;
|
|
|
|
event_failed:
|
|
ipoib_dev_cleanup(priv);
|
|
|
|
device_init_failed:
|
|
ipoib_detach(priv);
|
|
|
|
alloc_mem_failed:
|
|
return ERR_PTR(result);
|
|
}
|
|
|
|
static void
|
|
ipoib_add_one(struct ib_device *device)
|
|
{
|
|
struct list_head *dev_list;
|
|
struct ifnet *dev;
|
|
struct ipoib_dev_priv *priv;
|
|
int s, e, p;
|
|
|
|
if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB)
|
|
return;
|
|
|
|
dev_list = kmalloc(sizeof *dev_list, GFP_KERNEL);
|
|
if (!dev_list)
|
|
return;
|
|
|
|
INIT_LIST_HEAD(dev_list);
|
|
|
|
if (device->node_type == RDMA_NODE_IB_SWITCH) {
|
|
s = 0;
|
|
e = 0;
|
|
} else {
|
|
s = 1;
|
|
e = device->phys_port_cnt;
|
|
}
|
|
|
|
for (p = s; p <= e; ++p) {
|
|
if (rdma_port_get_link_layer(device, p) != IB_LINK_LAYER_INFINIBAND)
|
|
continue;
|
|
dev = ipoib_add_port("ib", device, p);
|
|
if (!IS_ERR(dev)) {
|
|
priv = dev->if_softc;
|
|
list_add_tail(&priv->list, dev_list);
|
|
}
|
|
}
|
|
|
|
ib_set_client_data(device, &ipoib_client, dev_list);
|
|
}
|
|
|
|
static void
|
|
ipoib_remove_one(struct ib_device *device, void *client_data)
|
|
{
|
|
struct ipoib_dev_priv *priv, *tmp;
|
|
struct list_head *dev_list = client_data;
|
|
|
|
if (!dev_list)
|
|
return;
|
|
|
|
if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB)
|
|
return;
|
|
|
|
list_for_each_entry_safe(priv, tmp, dev_list, list) {
|
|
if (rdma_port_get_link_layer(device, priv->port) != IB_LINK_LAYER_INFINIBAND)
|
|
continue;
|
|
|
|
ipoib_stop(priv);
|
|
|
|
ib_unregister_event_handler(&priv->event_handler);
|
|
|
|
/* dev_change_flags(priv->dev, priv->dev->flags & ~IFF_UP); */
|
|
|
|
flush_workqueue(ipoib_workqueue);
|
|
|
|
ipoib_dev_cleanup(priv);
|
|
ipoib_detach(priv);
|
|
}
|
|
|
|
kfree(dev_list);
|
|
}
|
|
|
|
static int
|
|
ipoib_match_dev_addr(const struct sockaddr *addr, struct net_device *dev)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct ifaddr *ifa;
|
|
int retval = 0;
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
CK_STAILQ_FOREACH(ifa, &dev->if_addrhead, ifa_link) {
|
|
if (ifa->ifa_addr == NULL ||
|
|
ifa->ifa_addr->sa_family != addr->sa_family ||
|
|
ifa->ifa_addr->sa_len != addr->sa_len) {
|
|
continue;
|
|
}
|
|
if (memcmp(ifa->ifa_addr, addr, addr->sa_len) == 0) {
|
|
retval = 1;
|
|
break;
|
|
}
|
|
}
|
|
NET_EPOCH_EXIT(et);
|
|
|
|
return (retval);
|
|
}
|
|
|
|
/*
|
|
* ipoib_match_gid_pkey_addr - returns the number of IPoIB netdevs on
|
|
* top a given ipoib device matching a pkey_index and address, if one
|
|
* exists.
|
|
*
|
|
* @found_net_dev: contains a matching net_device if the return value
|
|
* >= 1, with a reference held.
|
|
*/
|
|
static int
|
|
ipoib_match_gid_pkey_addr(struct ipoib_dev_priv *priv,
|
|
const union ib_gid *gid, u16 pkey_index, const struct sockaddr *addr,
|
|
struct net_device **found_net_dev)
|
|
{
|
|
struct ipoib_dev_priv *child_priv;
|
|
int matches = 0;
|
|
|
|
if (priv->pkey_index == pkey_index &&
|
|
(!gid || !memcmp(gid, &priv->local_gid, sizeof(*gid)))) {
|
|
if (addr == NULL || ipoib_match_dev_addr(addr, priv->dev) != 0) {
|
|
if (*found_net_dev == NULL) {
|
|
struct net_device *net_dev;
|
|
|
|
if (priv->parent != NULL)
|
|
net_dev = priv->parent;
|
|
else
|
|
net_dev = priv->dev;
|
|
*found_net_dev = net_dev;
|
|
dev_hold(net_dev);
|
|
}
|
|
matches++;
|
|
}
|
|
}
|
|
|
|
/* Check child interfaces */
|
|
mutex_lock(&priv->vlan_mutex);
|
|
list_for_each_entry(child_priv, &priv->child_intfs, list) {
|
|
matches += ipoib_match_gid_pkey_addr(child_priv, gid,
|
|
pkey_index, addr, found_net_dev);
|
|
if (matches > 1)
|
|
break;
|
|
}
|
|
mutex_unlock(&priv->vlan_mutex);
|
|
|
|
return matches;
|
|
}
|
|
|
|
/*
|
|
* __ipoib_get_net_dev_by_params - returns the number of matching
|
|
* net_devs found (between 0 and 2). Also return the matching
|
|
* net_device in the @net_dev parameter, holding a reference to the
|
|
* net_device, if the number of matches >= 1
|
|
*/
|
|
static int
|
|
__ipoib_get_net_dev_by_params(struct list_head *dev_list, u8 port,
|
|
u16 pkey_index, const union ib_gid *gid,
|
|
const struct sockaddr *addr, struct net_device **net_dev)
|
|
{
|
|
struct ipoib_dev_priv *priv;
|
|
int matches = 0;
|
|
|
|
*net_dev = NULL;
|
|
|
|
list_for_each_entry(priv, dev_list, list) {
|
|
if (priv->port != port)
|
|
continue;
|
|
|
|
matches += ipoib_match_gid_pkey_addr(priv, gid, pkey_index,
|
|
addr, net_dev);
|
|
|
|
if (matches > 1)
|
|
break;
|
|
}
|
|
|
|
return matches;
|
|
}
|
|
|
|
static struct net_device *
|
|
ipoib_get_net_dev_by_params(struct ib_device *dev, u8 port, u16 pkey,
|
|
const union ib_gid *gid, const struct sockaddr *addr, void *client_data)
|
|
{
|
|
struct net_device *net_dev;
|
|
struct list_head *dev_list = client_data;
|
|
u16 pkey_index;
|
|
int matches;
|
|
int ret;
|
|
|
|
if (!rdma_protocol_ib(dev, port))
|
|
return NULL;
|
|
|
|
ret = ib_find_cached_pkey(dev, port, pkey, &pkey_index);
|
|
if (ret)
|
|
return NULL;
|
|
|
|
if (!dev_list)
|
|
return NULL;
|
|
|
|
/* See if we can find a unique device matching the L2 parameters */
|
|
matches = __ipoib_get_net_dev_by_params(dev_list, port, pkey_index,
|
|
gid, NULL, &net_dev);
|
|
|
|
switch (matches) {
|
|
case 0:
|
|
return NULL;
|
|
case 1:
|
|
return net_dev;
|
|
}
|
|
|
|
dev_put(net_dev);
|
|
|
|
/* Couldn't find a unique device with L2 parameters only. Use L3
|
|
* address to uniquely match the net device */
|
|
matches = __ipoib_get_net_dev_by_params(dev_list, port, pkey_index,
|
|
gid, addr, &net_dev);
|
|
switch (matches) {
|
|
case 0:
|
|
return NULL;
|
|
default:
|
|
dev_warn_ratelimited(&dev->dev,
|
|
"duplicate IP address detected\n");
|
|
/* Fall through */
|
|
case 1:
|
|
return net_dev;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ipoib_config_vlan(void *arg, struct ifnet *ifp, u_int16_t vtag)
|
|
{
|
|
struct ipoib_dev_priv *parent;
|
|
struct ipoib_dev_priv *priv;
|
|
struct epoch_tracker et;
|
|
struct ifnet *dev;
|
|
uint16_t pkey;
|
|
int error;
|
|
|
|
if (ifp->if_type != IFT_INFINIBAND)
|
|
return;
|
|
NET_EPOCH_ENTER(et);
|
|
dev = VLAN_DEVAT(ifp, vtag);
|
|
NET_EPOCH_EXIT(et);
|
|
if (dev == NULL)
|
|
return;
|
|
priv = NULL;
|
|
error = 0;
|
|
parent = ifp->if_softc;
|
|
/* We only support 15 bits of pkey. */
|
|
if (vtag & 0x8000)
|
|
return;
|
|
pkey = vtag | 0x8000; /* Set full membership bit. */
|
|
if (pkey == parent->pkey)
|
|
return;
|
|
/* Check for dups */
|
|
mutex_lock(&parent->vlan_mutex);
|
|
list_for_each_entry(priv, &parent->child_intfs, list) {
|
|
if (priv->pkey == pkey) {
|
|
priv = NULL;
|
|
error = EBUSY;
|
|
goto out;
|
|
}
|
|
}
|
|
priv = ipoib_priv_alloc();
|
|
priv->dev = dev;
|
|
priv->max_ib_mtu = parent->max_ib_mtu;
|
|
priv->mcast_mtu = priv->admin_mtu = parent->dev->if_mtu;
|
|
set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags);
|
|
error = ipoib_set_dev_features(priv, parent->ca);
|
|
if (error)
|
|
goto out;
|
|
priv->pkey = pkey;
|
|
priv->broadcastaddr[8] = pkey >> 8;
|
|
priv->broadcastaddr[9] = pkey & 0xff;
|
|
dev->if_broadcastaddr = priv->broadcastaddr;
|
|
error = ipoib_dev_init(priv, parent->ca, parent->port);
|
|
if (error)
|
|
goto out;
|
|
priv->parent = parent->dev;
|
|
list_add_tail(&priv->list, &parent->child_intfs);
|
|
VLAN_SETCOOKIE(dev, priv);
|
|
dev->if_start = ipoib_vlan_start;
|
|
dev->if_drv_flags &= ~IFF_DRV_RUNNING;
|
|
dev->if_hdrlen = IPOIB_HEADER_LEN;
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ipoib_open(priv);
|
|
mutex_unlock(&parent->vlan_mutex);
|
|
return;
|
|
out:
|
|
mutex_unlock(&parent->vlan_mutex);
|
|
if (priv)
|
|
free(priv, M_TEMP);
|
|
if (error)
|
|
ipoib_warn(parent,
|
|
"failed to initialize subinterface: device %s, port %d vtag 0x%X",
|
|
parent->ca->name, parent->port, vtag);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
ipoib_unconfig_vlan(void *arg, struct ifnet *ifp, u_int16_t vtag)
|
|
{
|
|
struct ipoib_dev_priv *parent;
|
|
struct ipoib_dev_priv *priv;
|
|
struct epoch_tracker et;
|
|
struct ifnet *dev;
|
|
uint16_t pkey;
|
|
|
|
if (ifp->if_type != IFT_INFINIBAND)
|
|
return;
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
dev = VLAN_DEVAT(ifp, vtag);
|
|
NET_EPOCH_EXIT(et);
|
|
if (dev)
|
|
VLAN_SETCOOKIE(dev, NULL);
|
|
pkey = vtag | 0x8000;
|
|
parent = ifp->if_softc;
|
|
mutex_lock(&parent->vlan_mutex);
|
|
list_for_each_entry(priv, &parent->child_intfs, list) {
|
|
if (priv->pkey == pkey) {
|
|
ipoib_dev_cleanup(priv);
|
|
list_del(&priv->list);
|
|
break;
|
|
}
|
|
}
|
|
mutex_unlock(&parent->vlan_mutex);
|
|
}
|
|
|
|
eventhandler_tag ipoib_vlan_attach;
|
|
eventhandler_tag ipoib_vlan_detach;
|
|
|
|
static int __init
|
|
ipoib_init_module(void)
|
|
{
|
|
int ret;
|
|
|
|
ipoib_recvq_size = roundup_pow_of_two(ipoib_recvq_size);
|
|
ipoib_recvq_size = min(ipoib_recvq_size, IPOIB_MAX_QUEUE_SIZE);
|
|
ipoib_recvq_size = max(ipoib_recvq_size, IPOIB_MIN_QUEUE_SIZE);
|
|
|
|
ipoib_sendq_size = roundup_pow_of_two(ipoib_sendq_size);
|
|
ipoib_sendq_size = min(ipoib_sendq_size, IPOIB_MAX_QUEUE_SIZE);
|
|
ipoib_sendq_size = max(ipoib_sendq_size, max(2 * MAX_SEND_CQE,
|
|
IPOIB_MIN_QUEUE_SIZE));
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_CM
|
|
ipoib_max_conn_qp = min(ipoib_max_conn_qp, IPOIB_CM_MAX_CONN_QP);
|
|
#endif
|
|
|
|
ipoib_vlan_attach = EVENTHANDLER_REGISTER(vlan_config,
|
|
ipoib_config_vlan, NULL, EVENTHANDLER_PRI_FIRST);
|
|
ipoib_vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig,
|
|
ipoib_unconfig_vlan, NULL, EVENTHANDLER_PRI_FIRST);
|
|
|
|
/*
|
|
* We create our own workqueue mainly because we want to be
|
|
* able to flush it when devices are being removed. We can't
|
|
* use schedule_work()/flush_scheduled_work() because both
|
|
* unregister_netdev() and linkwatch_event take the rtnl lock,
|
|
* so flush_scheduled_work() can deadlock during device
|
|
* removal.
|
|
*/
|
|
ipoib_workqueue = create_singlethread_workqueue("ipoib");
|
|
if (!ipoib_workqueue) {
|
|
ret = -ENOMEM;
|
|
goto err_fs;
|
|
}
|
|
|
|
ib_sa_register_client(&ipoib_sa_client);
|
|
|
|
ret = ib_register_client(&ipoib_client);
|
|
if (ret)
|
|
goto err_sa;
|
|
|
|
return 0;
|
|
|
|
err_sa:
|
|
ib_sa_unregister_client(&ipoib_sa_client);
|
|
destroy_workqueue(ipoib_workqueue);
|
|
|
|
err_fs:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit
|
|
ipoib_cleanup_module(void)
|
|
{
|
|
|
|
EVENTHANDLER_DEREGISTER(vlan_config, ipoib_vlan_attach);
|
|
EVENTHANDLER_DEREGISTER(vlan_unconfig, ipoib_vlan_detach);
|
|
ib_unregister_client(&ipoib_client);
|
|
ib_sa_unregister_client(&ipoib_sa_client);
|
|
destroy_workqueue(ipoib_workqueue);
|
|
}
|
|
module_init_order(ipoib_init_module, SI_ORDER_FIFTH);
|
|
module_exit_order(ipoib_cleanup_module, SI_ORDER_FIFTH);
|
|
|
|
static int
|
|
ipoib_evhand(module_t mod, int event, void *arg)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static moduledata_t ipoib_mod = {
|
|
.name = "ipoib",
|
|
.evhand = ipoib_evhand,
|
|
};
|
|
|
|
DECLARE_MODULE(ipoib, ipoib_mod, SI_SUB_LAST, SI_ORDER_ANY);
|
|
MODULE_DEPEND(ipoib, ibcore, 1, 1, 1);
|
|
MODULE_DEPEND(ipoib, if_infiniband, 1, 1, 1);
|
|
MODULE_DEPEND(ipoib, linuxkpi, 1, 1, 1);
|