[deliverable/linux.git] / drivers / infiniband / ulp / ipoib / ipoib_verbs.c

/*
 * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
 * Copyright (c) 2005 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/slab.h>

#include "ipoib.h"

int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid, int set_qkey)
{
	struct ipoib_dev_priv *priv = netdev_priv(dev);
	struct ib_qp_attr *qp_attr = NULL;
	int ret;
	u16 pkey_index;

	if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &pkey_index)) {
		clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
		ret = -ENXIO;
		goto out;
	}
	set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);

	if (set_qkey) {
		ret = -ENOMEM;
		qp_attr = kmalloc(sizeof *qp_attr, GFP_KERNEL);
		if (!qp_attr)
			goto out;

		/* set correct QKey for QP */
		qp_attr->qkey = priv->qkey;
		ret = ib_modify_qp(priv->qp, qp_attr, IB_QP_QKEY);
		if (ret) {
			ipoib_warn(priv, "failed to modify QP, ret = %d\n", ret);
			goto out;
		}
	}

	/* attach QP to multicast group */
	ret = ib_attach_mcast(priv->qp, mgid, mlid);
	if (ret)
		ipoib_warn(priv, "failed to attach to multicast group, ret = %d\n", ret);

out:
	kfree(qp_attr);
	return ret;
}

int ipoib_init_qp(struct net_device *dev)
{
	struct ipoib_dev_priv *priv = netdev_priv(dev);
	int ret;
	struct ib_qp_attr qp_attr;
	int attr_mask;

	if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags))
		return -1;

	qp_attr.qp_state = IB_QPS_INIT;
	qp_attr.qkey = 0;
	qp_attr.port_num = priv->port;
	qp_attr.pkey_index = priv->pkey_index;
	attr_mask =
	    IB_QP_QKEY |
	    IB_QP_PORT |
	    IB_QP_PKEY_INDEX |
	    IB_QP_STATE;
	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	if (ret) {
		ipoib_warn(priv, "failed to modify QP to init, ret = %d\n", ret);
		goto out_fail;
	}

	qp_attr.qp_state = IB_QPS_RTR;
	/* Can't set this in a INIT->RTR transition */
	attr_mask &= ~IB_QP_PORT;
	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	if (ret) {
		ipoib_warn(priv, "failed to modify QP to RTR, ret = %d\n", ret);
		goto out_fail;
	}

	qp_attr.qp_state = IB_QPS_RTS;
	qp_attr.sq_psn = 0;
	attr_mask |= IB_QP_SQ_PSN;
	attr_mask &= ~IB_QP_PKEY_INDEX;
	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	if (ret) {
		ipoib_warn(priv, "failed to modify QP to RTS, ret = %d\n", ret);
		goto out_fail;
	}

	return 0;

out_fail:
	qp_attr.qp_state = IB_QPS_RESET;
	if (ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE))
		ipoib_warn(priv, "Failed to modify QP to RESET state\n");

	return ret;
}

int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
{
	struct ipoib_dev_priv *priv = netdev_priv(dev);
	struct ib_qp_init_attr init_attr = {
		.cap = {
			.max_send_wr  = ipoib_sendq_size,
			.max_recv_wr  = ipoib_recvq_size,
			.max_send_sge = 1,
			.max_recv_sge = IPOIB_UD_RX_SG
		},
		.sq_sig_type = IB_SIGNAL_ALL_WR,
		.qp_type     = IB_QPT_UD
	};
	struct ib_cq_init_attr cq_attr = {};

	int ret, size;
	int i;

	priv->pd = ib_alloc_pd(priv->ca);
	if (IS_ERR(priv->pd)) {
		printk(KERN_WARNING "%s: failed to allocate PD\n", ca->name);
		return -ENODEV;
	}

	priv->mr = ib_get_dma_mr(priv->pd, IB_ACCESS_LOCAL_WRITE);
	if (IS_ERR(priv->mr)) {
		printk(KERN_WARNING "%s: ib_get_dma_mr failed\n", ca->name);
		goto out_free_pd;
	}

	/*
	 * the various IPoIB tasks assume they will never race against
	 * themselves, so always use a single thread workqueue
	 */
	priv->wq = create_singlethread_workqueue("ipoib_wq");
	if (!priv->wq) {
		printk(KERN_WARNING "ipoib: failed to allocate device WQ\n");
		goto out_free_mr;
	}

	size = ipoib_recvq_size + 1;
	ret = ipoib_cm_dev_init(dev);
	if (!ret) {
		size += ipoib_sendq_size;
		if (ipoib_cm_has_srq(dev))
			size += ipoib_recvq_size + 1; /* 1 extra for rx_drain_qp */
		else
			size += ipoib_recvq_size * ipoib_max_conn_qp;
	} else
		goto out_free_wq;

	cq_attr.cqe = size;
	priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL,
				     dev, &cq_attr);
	if (IS_ERR(priv->recv_cq)) {
		printk(KERN_WARNING "%s: failed to create receive CQ\n", ca->name);
		goto out_cm_dev_cleanup;
	}

	cq_attr.cqe = ipoib_sendq_size;
	priv->send_cq = ib_create_cq(priv->ca, ipoib_send_comp_handler, NULL,
				     dev, &cq_attr);
	if (IS_ERR(priv->send_cq)) {
		printk(KERN_WARNING "%s: failed to create send CQ\n", ca->name);
		goto out_free_recv_cq;
	}

	if (ib_req_notify_cq(priv->recv_cq, IB_CQ_NEXT_COMP))
		goto out_free_send_cq;

	init_attr.send_cq = priv->send_cq;
	init_attr.recv_cq = priv->recv_cq;

	if (priv->hca_caps & IB_DEVICE_UD_TSO)
		init_attr.create_flags |= IB_QP_CREATE_IPOIB_UD_LSO;

	if (priv->hca_caps & IB_DEVICE_BLOCK_MULTICAST_LOOPBACK)
		init_attr.create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;

	if (priv->hca_caps & IB_DEVICE_MANAGED_FLOW_STEERING)
		init_attr.create_flags |= IB_QP_CREATE_NETIF_QP;

	if (dev->features & NETIF_F_SG)
		init_attr.cap.max_send_sge = MAX_SKB_FRAGS + 1;

	priv->qp = ib_create_qp(priv->pd, &init_attr);
	if (IS_ERR(priv->qp)) {
		printk(KERN_WARNING "%s: failed to create QP\n", ca->name);
		goto out_free_send_cq;
	}

	priv->dev->dev_addr[1] = (priv->qp->qp_num >> 16) & 0xff;
	priv->dev->dev_addr[2] = (priv->qp->qp_num >>  8) & 0xff;
	priv->dev->dev_addr[3] = (priv->qp->qp_num      ) & 0xff;

	for (i = 0; i < MAX_SKB_FRAGS + 1; ++i)
		priv->tx_sge[i].lkey = priv->mr->lkey;

	priv->tx_wr.opcode	= IB_WR_SEND;
	priv->tx_wr.sg_list	= priv->tx_sge;
	priv->tx_wr.send_flags	= IB_SEND_SIGNALED;

	priv->rx_sge[0].lkey = priv->mr->lkey;

	priv->rx_sge[0].length = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
	priv->rx_wr.num_sge = 1;

	priv->rx_wr.next = NULL;
	priv->rx_wr.sg_list = priv->rx_sge;

	return 0;

out_free_send_cq:
	ib_destroy_cq(priv->send_cq);

out_free_recv_cq:
	ib_destroy_cq(priv->recv_cq);

out_cm_dev_cleanup:
	ipoib_cm_dev_cleanup(dev);

out_free_wq:
	destroy_workqueue(priv->wq);
	priv->wq = NULL;

out_free_mr:
	ib_dereg_mr(priv->mr);

out_free_pd:
	ib_dealloc_pd(priv->pd);

	return -ENODEV;
}

void ipoib_transport_dev_cleanup(struct net_device *dev)
{
	struct ipoib_dev_priv *priv = netdev_priv(dev);

	if (priv->qp) {
		if (ib_destroy_qp(priv->qp))
			ipoib_warn(priv, "ib_qp_destroy failed\n");

		priv->qp = NULL;
		clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
	}

	if (ib_destroy_cq(priv->send_cq))
		ipoib_warn(priv, "ib_cq_destroy (send) failed\n");

	if (ib_destroy_cq(priv->recv_cq))
		ipoib_warn(priv, "ib_cq_destroy (recv) failed\n");

	ipoib_cm_dev_cleanup(dev);

	if (priv->wq) {
		flush_workqueue(priv->wq);
		destroy_workqueue(priv->wq);
		priv->wq = NULL;
	}

	if (ib_dereg_mr(priv->mr))
		ipoib_warn(priv, "ib_dereg_mr failed\n");

	if (ib_dealloc_pd(priv->pd))
		ipoib_warn(priv, "ib_dealloc_pd failed\n");

}

void ipoib_event(struct ib_event_handler *handler,
		 struct ib_event *record)
{
	struct ipoib_dev_priv *priv =
		container_of(handler, struct ipoib_dev_priv, event_handler);

	if (record->element.port_num != priv->port)
		return;

	ipoib_dbg(priv, "Event %d on device %s port %d\n", record->event,
		  record->device->name, record->element.port_num);

	if (record->event == IB_EVENT_SM_CHANGE ||
	    record->event == IB_EVENT_CLIENT_REREGISTER) {
		queue_work(ipoib_workqueue, &priv->flush_light);
	} else if (record->event == IB_EVENT_PORT_ERR ||
		   record->event == IB_EVENT_PORT_ACTIVE ||
		   record->event == IB_EVENT_LID_CHANGE) {
		queue_work(ipoib_workqueue, &priv->flush_normal);
	} else if (record->event == IB_EVENT_PKEY_CHANGE) {
		queue_work(ipoib_workqueue, &priv->flush_heavy);
	}
}
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
2a1d9b7f	3	* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
1da177e4 LT	4	*
	5	* This software is available to you under a choice of one of two
	6	* licenses. You may choose to be licensed under the terms of the GNU
	7	* General Public License (GPL) Version 2, available from the file
	8	* COPYING in the main directory of this source tree, or the
	9	* OpenIB.org BSD license below:
	10	*
	11	* Redistribution and use in source and binary forms, with or
	12	* without modification, are permitted provided that the following
	13	* conditions are met:
	14	*
	15	* - Redistributions of source code must retain the above
	16	* copyright notice, this list of conditions and the following
	17	* disclaimer.
	18	*
	19	* - Redistributions in binary form must reproduce the above
	20	* copyright notice, this list of conditions and the following
	21	* disclaimer in the documentation and/or other materials
	22	* provided with the distribution.
	23	*
	24	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	25	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	26	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	27	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	28	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	29	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	30	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	31	* SOFTWARE.
1da177e4 LT	32	*/
1da177e4 LT	33
5a0e3ad6 TH	34	#include <linux/slab.h>
5a0e3ad6 TH	35
1da177e4 LT	36	#include "ipoib.h"
1da177e4 LT	37
d0de1362	38	int ipoib_mcast_attach(struct net_device dev, u16 mlid, union ib_gid mgid, int set_qkey)
1da177e4 LT	39	{
1da177e4 LT	40	struct ipoib_dev_priv *priv = netdev_priv(dev);
d0de1362	41	struct ib_qp_attr *qp_attr = NULL;
1da177e4 LT	42	int ret;
	43	u16 pkey_index;
	44
26bbf13c	45	if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &pkey_index)) {
1da177e4 LT	46	clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
	47	ret = -ENXIO;
	48	goto out;
	49	}
	50	set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
	51
d0de1362 EC	52	if (set_qkey) {
	53	ret = -ENOMEM;
	54	qp_attr = kmalloc(sizeof *qp_attr, GFP_KERNEL);
	55	if (!qp_attr)
	56	goto out;
	57
	58	/* set correct QKey for QP */
	59	qp_attr->qkey = priv->qkey;
	60	ret = ib_modify_qp(priv->qp, qp_attr, IB_QP_QKEY);
	61	if (ret) {
	62	ipoib_warn(priv, "failed to modify QP, ret = %d\n", ret);
	63	goto out;
	64	}
1da177e4 LT	65	}
	66
	67	/* attach QP to multicast group */
1da177e4	68	ret = ib_attach_mcast(priv->qp, mgid, mlid);
1da177e4 LT	69	if (ret)
	70	ipoib_warn(priv, "failed to attach to multicast group, ret = %d\n", ret);
	71
	72	out:
	73	kfree(qp_attr);
	74	return ret;
	75	}
	76
5b6810e0	77	int ipoib_init_qp(struct net_device *dev)
1da177e4 LT	78	{
	79	struct ipoib_dev_priv *priv = netdev_priv(dev);
	80	int ret;
1da177e4 LT	81	struct ib_qp_attr qp_attr;
	82	int attr_mask;
	83
26bbf13c YE	84	if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags))
26bbf13c YE	85	return -1;
1da177e4 LT	86
	87	qp_attr.qp_state = IB_QPS_INIT;
	88	qp_attr.qkey = 0;
	89	qp_attr.port_num = priv->port;
26bbf13c	90	qp_attr.pkey_index = priv->pkey_index;
1da177e4 LT	91	attr_mask =
	92	IB_QP_QKEY \|
	93	IB_QP_PORT \|
	94	IB_QP_PKEY_INDEX \|
	95	IB_QP_STATE;
	96	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	97	if (ret) {
	98	ipoib_warn(priv, "failed to modify QP to init, ret = %d\n", ret);
	99	goto out_fail;
	100	}
	101
	102	qp_attr.qp_state = IB_QPS_RTR;
	103	/* Can't set this in a INIT->RTR transition */
	104	attr_mask &= ~IB_QP_PORT;
	105	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	106	if (ret) {
	107	ipoib_warn(priv, "failed to modify QP to RTR, ret = %d\n", ret);
	108	goto out_fail;
	109	}
	110
	111	qp_attr.qp_state = IB_QPS_RTS;
	112	qp_attr.sq_psn = 0;
	113	attr_mask \|= IB_QP_SQ_PSN;
	114	attr_mask &= ~IB_QP_PKEY_INDEX;
	115	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	116	if (ret) {
	117	ipoib_warn(priv, "failed to modify QP to RTS, ret = %d\n", ret);
	118	goto out_fail;
	119	}
	120
	121	return 0;
	122
	123	out_fail:
5b6810e0 RD	124	qp_attr.qp_state = IB_QPS_RESET;
	125	if (ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE))
	126	ipoib_warn(priv, "Failed to modify QP to RESET state\n");
1da177e4	127
5b6810e0	128	return ret;
1da177e4 LT	129	}
	130
	131	int ipoib_transport_dev_init(struct net_device dev, struct ib_device ca)
	132	{
	133	struct ipoib_dev_priv *priv = netdev_priv(dev);
	134	struct ib_qp_init_attr init_attr = {
	135	.cap = {
0f485251 SM	136	.max_send_wr = ipoib_sendq_size,
0f485251 SM	137	.max_recv_wr = ipoib_recvq_size,
1da177e4	138	.max_send_sge = 1,
bc7b3a36	139	.max_recv_sge = IPOIB_UD_RX_SG
1da177e4 LT	140	},
	141	.sq_sig_type = IB_SIGNAL_ALL_WR,
	142	.qp_type = IB_QPT_UD
	143	};
8e37210b	144	struct ib_cq_init_attr cq_attr = {};
1da177e4	145
839fcaba	146	int ret, size;
7143740d	147	int i;
839fcaba	148
1da177e4 LT	149	priv->pd = ib_alloc_pd(priv->ca);
	150	if (IS_ERR(priv->pd)) {
	151	printk(KERN_WARNING "%s: failed to allocate PD\n", ca->name);
0306eda2	152	return -ENODEV;
1da177e4 LT	153	}
1da177e4 LT	154
839fcaba MT	155	priv->mr = ib_get_dma_mr(priv->pd, IB_ACCESS_LOCAL_WRITE);
	156	if (IS_ERR(priv->mr)) {
	157	printk(KERN_WARNING "%s: ib_get_dma_mr failed\n", ca->name);
	158	goto out_free_pd;
	159	}
	160
0b39578b DL	161	/*
	162	* the various IPoIB tasks assume they will never race against
	163	* themselves, so always use a single thread workqueue
	164	*/
	165	priv->wq = create_singlethread_workqueue("ipoib_wq");
	166	if (!priv->wq) {
	167	printk(KERN_WARNING "ipoib: failed to allocate device WQ\n");
	168	goto out_free_mr;
	169	}
	170
f56bcd80	171	size = ipoib_recvq_size + 1;
839fcaba	172	ret = ipoib_cm_dev_init(dev);
68e995a2	173	if (!ret) {
f56bcd80	174	size += ipoib_sendq_size;
68e995a2 PS	175	if (ipoib_cm_has_srq(dev))
	176	size += ipoib_recvq_size + 1; /* 1 extra for rx_drain_qp */
	177	else
	178	size += ipoib_recvq_size * ipoib_max_conn_qp;
0b39578b DL	179	} else
0b39578b DL	180	goto out_free_wq;
839fcaba	181
8e37210b MB	182	cq_attr.cqe = size;
	183	priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL,
	184	dev, &cq_attr);
f56bcd80 EC	185	if (IS_ERR(priv->recv_cq)) {
f56bcd80 EC	186	printk(KERN_WARNING "%s: failed to create receive CQ\n", ca->name);
0b39578b	187	goto out_cm_dev_cleanup;
1da177e4 LT	188	}
1da177e4 LT	189
8e37210b	190	cq_attr.cqe = ipoib_sendq_size;
57ce41d1	191	priv->send_cq = ib_create_cq(priv->ca, ipoib_send_comp_handler, NULL,
8e37210b	192	dev, &cq_attr);
f56bcd80 EC	193	if (IS_ERR(priv->send_cq)) {
	194	printk(KERN_WARNING "%s: failed to create send CQ\n", ca->name);
	195	goto out_free_recv_cq;
	196	}
	197
	198	if (ib_req_notify_cq(priv->recv_cq, IB_CQ_NEXT_COMP))
	199	goto out_free_send_cq;
1da177e4	200
f56bcd80 EC	201	init_attr.send_cq = priv->send_cq;
f56bcd80 EC	202	init_attr.recv_cq = priv->recv_cq;
1da177e4	203
40ca1988	204	if (priv->hca_caps & IB_DEVICE_UD_TSO)
12406734 RL	205	init_attr.create_flags \|= IB_QP_CREATE_IPOIB_UD_LSO;
	206
	207	if (priv->hca_caps & IB_DEVICE_BLOCK_MULTICAST_LOOPBACK)
	208	init_attr.create_flags \|= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;
40ca1988	209
90f1d1b4 MB	210	if (priv->hca_caps & IB_DEVICE_MANAGED_FLOW_STEERING)
	211	init_attr.create_flags \|= IB_QP_CREATE_NETIF_QP;
	212
7143740d EC	213	if (dev->features & NETIF_F_SG)
	214	init_attr.cap.max_send_sge = MAX_SKB_FRAGS + 1;
	215
1da177e4 LT	216	priv->qp = ib_create_qp(priv->pd, &init_attr);
	217	if (IS_ERR(priv->qp)) {
	218	printk(KERN_WARNING "%s: failed to create QP\n", ca->name);
f56bcd80	219	goto out_free_send_cq;
1da177e4 LT	220	}
	221
	222	priv->dev->dev_addr[1] = (priv->qp->qp_num >> 16) & 0xff;
	223	priv->dev->dev_addr[2] = (priv->qp->qp_num >> 8) & 0xff;
	224	priv->dev->dev_addr[3] = (priv->qp->qp_num ) & 0xff;
	225
7143740d EC	226	for (i = 0; i < MAX_SKB_FRAGS + 1; ++i)
7143740d EC	227	priv->tx_sge[i].lkey = priv->mr->lkey;
1da177e4	228
2337f809	229	priv->tx_wr.opcode = IB_WR_SEND;
7143740d	230	priv->tx_wr.sg_list = priv->tx_sge;
2337f809	231	priv->tx_wr.send_flags = IB_SEND_SIGNALED;
1da177e4	232
bc7b3a36	233	priv->rx_sge[0].lkey = priv->mr->lkey;
a44878d1 ES	234
	235	priv->rx_sge[0].length = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
	236	priv->rx_wr.num_sge = 1;
	237
bc7b3a36 SM	238	priv->rx_wr.next = NULL;
	239	priv->rx_wr.sg_list = priv->rx_sge;
	240
1da177e4 LT	241	return 0;
1da177e4 LT	242
f56bcd80 EC	243	out_free_send_cq:
	244	ib_destroy_cq(priv->send_cq);
	245
	246	out_free_recv_cq:
	247	ib_destroy_cq(priv->recv_cq);
1da177e4	248
0b39578b DL	249	out_cm_dev_cleanup:
	250	ipoib_cm_dev_cleanup(dev);
	251
	252	out_free_wq:
	253	destroy_workqueue(priv->wq);
	254	priv->wq = NULL;
	255
839fcaba MT	256	out_free_mr:
	257	ib_dereg_mr(priv->mr);
	258
1da177e4 LT	259	out_free_pd:
1da177e4 LT	260	ib_dealloc_pd(priv->pd);
0b39578b	261
1da177e4 LT	262	return -ENODEV;
	263	}
	264
	265	void ipoib_transport_dev_cleanup(struct net_device *dev)
	266	{
	267	struct ipoib_dev_priv *priv = netdev_priv(dev);
	268
	269	if (priv->qp) {
	270	if (ib_destroy_qp(priv->qp))
	271	ipoib_warn(priv, "ib_qp_destroy failed\n");
	272
	273	priv->qp = NULL;
	274	clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
	275	}
	276
f56bcd80 EC	277	if (ib_destroy_cq(priv->send_cq))
	278	ipoib_warn(priv, "ib_cq_destroy (send) failed\n");
	279
	280	if (ib_destroy_cq(priv->recv_cq))
	281	ipoib_warn(priv, "ib_cq_destroy (recv) failed\n");
1da177e4	282
839fcaba MT	283	ipoib_cm_dev_cleanup(dev);
839fcaba MT	284
0b39578b DL	285	if (priv->wq) {
	286	flush_workqueue(priv->wq);
	287	destroy_workqueue(priv->wq);
	288	priv->wq = NULL;
	289	}
	290
839fcaba MT	291	if (ib_dereg_mr(priv->mr))
	292	ipoib_warn(priv, "ib_dereg_mr failed\n");
	293
1da177e4 LT	294	if (ib_dealloc_pd(priv->pd))
1da177e4 LT	295	ipoib_warn(priv, "ib_dealloc_pd failed\n");
0b39578b	296
1da177e4 LT	297	}
	298
	299	void ipoib_event(struct ib_event_handler *handler,
	300	struct ib_event *record)
	301	{
	302	struct ipoib_dev_priv *priv =
	303	container_of(handler, struct ipoib_dev_priv, event_handler);
	304
26bbf13c YE	305	if (record->element.port_num != priv->port)
	306	return;
	307
ee1e2c82 MS	308	ipoib_dbg(priv, "Event %d on device %s port %d\n", record->event,
	309	record->device->name, record->element.port_num);
	310
	311	if (record->event == IB_EVENT_SM_CHANGE \|\|
26bbf13c	312	record->event == IB_EVENT_CLIENT_REREGISTER) {
ee1e2c82 MS	313	queue_work(ipoib_workqueue, &priv->flush_light);
	314	} else if (record->event == IB_EVENT_PORT_ERR \|\|
	315	record->event == IB_EVENT_PORT_ACTIVE \|\|
	316	record->event == IB_EVENT_LID_CHANGE) {
	317	queue_work(ipoib_workqueue, &priv->flush_normal);
26bbf13c	318	} else if (record->event == IB_EVENT_PKEY_CHANGE) {
ee1e2c82	319	queue_work(ipoib_workqueue, &priv->flush_heavy);
1da177e4 LT	320	}
1da177e4 LT	321	}