Linux-libre 4.6.2-gnu

1 files changed, 0 insertions, 312 deletions

diff --git a/net/rds/iw.c b/net/rds/iw.c
deleted file mode 100644
index f4a9fff82..000000000
--- a/net/rds/iw.c
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Copyright (c) 2006 Oracle.  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/kernel.h>
-#include <linux/in.h>
-#include <linux/if.h>
-#include <linux/netdevice.h>
-#include <linux/inetdevice.h>
-#include <linux/if_arp.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-
-#include "rds.h"
-#include "iw.h"
-
-unsigned int fastreg_pool_size = RDS_FASTREG_POOL_SIZE;
-unsigned int fastreg_message_size = RDS_FASTREG_SIZE + 1; /* +1 allows for unaligned MRs */
-
-module_param(fastreg_pool_size, int, 0444);
-MODULE_PARM_DESC(fastreg_pool_size, " Max number of fastreg MRs per device");
-module_param(fastreg_message_size, int, 0444);
-MODULE_PARM_DESC(fastreg_message_size, " Max size of a RDMA transfer (fastreg MRs)");
-
-struct list_head rds_iw_devices;
-
-/* NOTE: if also grabbing iwdev lock, grab this first */
-DEFINE_SPINLOCK(iw_nodev_conns_lock);
-LIST_HEAD(iw_nodev_conns);
-
-static void rds_iw_add_one(struct ib_device *device)
-{
-	struct rds_iw_device *rds_iwdev;
-
-	/* Only handle iwarp devices */
-	if (device->node_type != RDMA_NODE_RNIC)
-		return;
-
-	rds_iwdev = kmalloc(sizeof *rds_iwdev, GFP_KERNEL);
-	if (!rds_iwdev)
-		return;
-
-	spin_lock_init(&rds_iwdev->spinlock);
-
-	rds_iwdev->dma_local_lkey = !!(device->attrs.device_cap_flags & IB_DEVICE_LOCAL_DMA_LKEY);
-	rds_iwdev->max_wrs = device->attrs.max_qp_wr;
-	rds_iwdev->max_sge = min(device->attrs.max_sge, RDS_IW_MAX_SGE);
-
-	rds_iwdev->dev = device;
-	rds_iwdev->pd = ib_alloc_pd(device);
-	if (IS_ERR(rds_iwdev->pd))
-		goto free_dev;
-
-	if (!rds_iwdev->dma_local_lkey) {
-		rds_iwdev->mr = ib_get_dma_mr(rds_iwdev->pd,
-					IB_ACCESS_REMOTE_READ |
-					IB_ACCESS_REMOTE_WRITE |
-					IB_ACCESS_LOCAL_WRITE);
-		if (IS_ERR(rds_iwdev->mr))
-			goto err_pd;
-	} else
-		rds_iwdev->mr = NULL;
-
-	rds_iwdev->mr_pool = rds_iw_create_mr_pool(rds_iwdev);
-	if (IS_ERR(rds_iwdev->mr_pool)) {
-		rds_iwdev->mr_pool = NULL;
-		goto err_mr;
-	}
-
-	INIT_LIST_HEAD(&rds_iwdev->cm_id_list);
-	INIT_LIST_HEAD(&rds_iwdev->conn_list);
-	list_add_tail(&rds_iwdev->list, &rds_iw_devices);
-
-	ib_set_client_data(device, &rds_iw_client, rds_iwdev);
-	return;
-
-err_mr:
-	if (rds_iwdev->mr)
-		ib_dereg_mr(rds_iwdev->mr);
-err_pd:
-	ib_dealloc_pd(rds_iwdev->pd);
-free_dev:
-	kfree(rds_iwdev);
-}
-
-static void rds_iw_remove_one(struct ib_device *device, void *client_data)
-{
-	struct rds_iw_device *rds_iwdev = client_data;
-	struct rds_iw_cm_id *i_cm_id, *next;
-
-	if (!rds_iwdev)
-		return;
-
-	spin_lock_irq(&rds_iwdev->spinlock);
-	list_for_each_entry_safe(i_cm_id, next, &rds_iwdev->cm_id_list, list) {
-		list_del(&i_cm_id->list);
-		kfree(i_cm_id);
-	}
-	spin_unlock_irq(&rds_iwdev->spinlock);
-
-	rds_iw_destroy_conns(rds_iwdev);
-
-	if (rds_iwdev->mr_pool)
-		rds_iw_destroy_mr_pool(rds_iwdev->mr_pool);
-
-	if (rds_iwdev->mr)
-		ib_dereg_mr(rds_iwdev->mr);
-
-	ib_dealloc_pd(rds_iwdev->pd);
-
-	list_del(&rds_iwdev->list);
-	kfree(rds_iwdev);
-}
-
-struct ib_client rds_iw_client = {
-	.name   = "rds_iw",
-	.add    = rds_iw_add_one,
-	.remove = rds_iw_remove_one
-};
-
-static int rds_iw_conn_info_visitor(struct rds_connection *conn,
-				    void *buffer)
-{
-	struct rds_info_rdma_connection *iinfo = buffer;
-	struct rds_iw_connection *ic;
-
-	/* We will only ever look at IB transports */
-	if (conn->c_trans != &rds_iw_transport)
-		return 0;
-
-	iinfo->src_addr = conn->c_laddr;
-	iinfo->dst_addr = conn->c_faddr;
-
-	memset(&iinfo->src_gid, 0, sizeof(iinfo->src_gid));
-	memset(&iinfo->dst_gid, 0, sizeof(iinfo->dst_gid));
-	if (rds_conn_state(conn) == RDS_CONN_UP) {
-		struct rds_iw_device *rds_iwdev;
-		struct rdma_dev_addr *dev_addr;
-
-		ic = conn->c_transport_data;
-		dev_addr = &ic->i_cm_id->route.addr.dev_addr;
-
-		rdma_addr_get_sgid(dev_addr, (union ib_gid *) &iinfo->src_gid);
-		rdma_addr_get_dgid(dev_addr, (union ib_gid *) &iinfo->dst_gid);
-
-		rds_iwdev = ib_get_client_data(ic->i_cm_id->device, &rds_iw_client);
-		iinfo->max_send_wr = ic->i_send_ring.w_nr;
-		iinfo->max_recv_wr = ic->i_recv_ring.w_nr;
-		iinfo->max_send_sge = rds_iwdev->max_sge;
-		rds_iw_get_mr_info(rds_iwdev, iinfo);
-	}
-	return 1;
-}
-
-static void rds_iw_ic_info(struct socket *sock, unsigned int len,
-			   struct rds_info_iterator *iter,
-			   struct rds_info_lengths *lens)
-{
-	rds_for_each_conn_info(sock, len, iter, lens,
-				rds_iw_conn_info_visitor,
-				sizeof(struct rds_info_rdma_connection));
-}
-
-
-/*
- * Early RDS/IB was built to only bind to an address if there is an IPoIB
- * device with that address set.
- *
- * If it were me, I'd advocate for something more flexible.  Sending and
- * receiving should be device-agnostic.  Transports would try and maintain
- * connections between peers who have messages queued.  Userspace would be
- * allowed to influence which paths have priority.  We could call userspace
- * asserting this policy "routing".
- */
-static int rds_iw_laddr_check(struct net *net, __be32 addr)
-{
-	int ret;
-	struct rdma_cm_id *cm_id;
-	struct sockaddr_in sin;
-
-	/* Create a CMA ID and try to bind it. This catches both
-	 * IB and iWARP capable NICs.
-	 */
-	cm_id = rdma_create_id(&init_net, NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
-	if (IS_ERR(cm_id))
-		return PTR_ERR(cm_id);
-
-	memset(&sin, 0, sizeof(sin));
-	sin.sin_family = AF_INET;
-	sin.sin_addr.s_addr = addr;
-
-	/* rdma_bind_addr will only succeed for IB & iWARP devices */
-	ret = rdma_bind_addr(cm_id, (struct sockaddr *)&sin);
-	/* due to this, we will claim to support IB devices unless we
-	   check node_type. */
-	if (ret || !cm_id->device ||
-	    cm_id->device->node_type != RDMA_NODE_RNIC)
-		ret = -EADDRNOTAVAIL;
-
-	rdsdebug("addr %pI4 ret %d node type %d\n",
-		&addr, ret,
-		cm_id->device ? cm_id->device->node_type : -1);
-
-	rdma_destroy_id(cm_id);
-
-	return ret;
-}
-
-void rds_iw_exit(void)
-{
-	rds_info_deregister_func(RDS_INFO_IWARP_CONNECTIONS, rds_iw_ic_info);
-	rds_iw_destroy_nodev_conns();
-	ib_unregister_client(&rds_iw_client);
-	rds_iw_sysctl_exit();
-	rds_iw_recv_exit();
-	rds_trans_unregister(&rds_iw_transport);
-}
-
-struct rds_transport rds_iw_transport = {
-	.laddr_check		= rds_iw_laddr_check,
-	.xmit_complete		= rds_iw_xmit_complete,
-	.xmit			= rds_iw_xmit,
-	.xmit_rdma		= rds_iw_xmit_rdma,
-	.recv			= rds_iw_recv,
-	.conn_alloc		= rds_iw_conn_alloc,
-	.conn_free		= rds_iw_conn_free,
-	.conn_connect		= rds_iw_conn_connect,
-	.conn_shutdown		= rds_iw_conn_shutdown,
-	.inc_copy_to_user	= rds_iw_inc_copy_to_user,
-	.inc_free		= rds_iw_inc_free,
-	.cm_initiate_connect	= rds_iw_cm_initiate_connect,
-	.cm_handle_connect	= rds_iw_cm_handle_connect,
-	.cm_connect_complete	= rds_iw_cm_connect_complete,
-	.stats_info_copy	= rds_iw_stats_info_copy,
-	.exit			= rds_iw_exit,
-	.get_mr			= rds_iw_get_mr,
-	.sync_mr		= rds_iw_sync_mr,
-	.free_mr		= rds_iw_free_mr,
-	.flush_mrs		= rds_iw_flush_mrs,
-	.t_owner		= THIS_MODULE,
-	.t_name			= "iwarp",
-	.t_type			= RDS_TRANS_IWARP,
-	.t_prefer_loopback	= 1,
-};
-
-int rds_iw_init(void)
-{
-	int ret;
-
-	INIT_LIST_HEAD(&rds_iw_devices);
-
-	ret = ib_register_client(&rds_iw_client);
-	if (ret)
-		goto out;
-
-	ret = rds_iw_sysctl_init();
-	if (ret)
-		goto out_ibreg;
-
-	ret = rds_iw_recv_init();
-	if (ret)
-		goto out_sysctl;
-
-	ret = rds_trans_register(&rds_iw_transport);
-	if (ret)
-		goto out_recv;
-
-	rds_info_register_func(RDS_INFO_IWARP_CONNECTIONS, rds_iw_ic_info);
-
-	goto out;
-
-out_recv:
-	rds_iw_recv_exit();
-out_sysctl:
-	rds_iw_sysctl_exit();
-out_ibreg:
-	ib_unregister_client(&rds_iw_client);
-out:
-	return ret;
-}
-
-MODULE_LICENSE("GPL");
-