[GitHub/mt8127/android_kernel_alcatel_ttab.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 "ipoib.h"

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

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

	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);

	/* 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_mcast_detach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
{
	struct ipoib_dev_priv *priv = netdev_priv(dev);
	int ret;

	ret = ib_detach_mcast(priv->qp, mgid, mlid);
	if (ret)
		ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret);

	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
	};

	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;
	}

	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;
	}

	priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size, 0);
	if (IS_ERR(priv->recv_cq)) {
		printk(KERN_WARNING "%s: failed to create receive CQ\n", ca->name);
		goto out_free_mr;
	}

	priv->send_cq = ib_create_cq(priv->ca, ipoib_send_comp_handler, NULL,
				     dev, ipoib_sendq_size, 0);
	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 (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;
	if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
		priv->rx_sge[0].length = IPOIB_UD_HEAD_SIZE;
		priv->rx_sge[1].length = PAGE_SIZE;
		priv->rx_sge[1].lkey = priv->mr->lkey;
		priv->rx_wr.num_sge = IPOIB_UD_RX_SG;
	} else {
		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_free_mr:
	ib_dereg_mr(priv->mr);
	ipoib_cm_dev_cleanup(dev);

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 (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
1da177e4 LT	34	#include "ipoib.h"
	35
	36	int ipoib_mcast_attach(struct net_device dev, u16 mlid, union ib_gid mgid)
	37	{
	38	struct ipoib_dev_priv *priv = netdev_priv(dev);
	39	struct ib_qp_attr *qp_attr;
1da177e4 LT	40	int ret;
	41	u16 pkey_index;
	42
	43	ret = -ENOMEM;
	44	qp_attr = kmalloc(sizeof *qp_attr, GFP_KERNEL);
	45	if (!qp_attr)
	46	goto out;
	47
26bbf13c	48	if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &pkey_index)) {
1da177e4 LT	49	clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
	50	ret = -ENXIO;
	51	goto out;
	52	}
	53	set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
	54
	55	/* set correct QKey for QP */
	56	qp_attr->qkey = priv->qkey;
3bc12e75	57	ret = ib_modify_qp(priv->qp, qp_attr, IB_QP_QKEY);
1da177e4 LT	58	if (ret) {
	59	ipoib_warn(priv, "failed to modify QP, ret = %d\n", ret);
	60	goto out;
	61	}
	62
	63	/* attach QP to multicast group */
1da177e4	64	ret = ib_attach_mcast(priv->qp, mgid, mlid);
1da177e4 LT	65	if (ret)
	66	ipoib_warn(priv, "failed to attach to multicast group, ret = %d\n", ret);
	67
	68	out:
	69	kfree(qp_attr);
	70	return ret;
	71	}
	72
	73	int ipoib_mcast_detach(struct net_device dev, u16 mlid, union ib_gid mgid)
	74	{
	75	struct ipoib_dev_priv *priv = netdev_priv(dev);
	76	int ret;
	77
1da177e4	78	ret = ib_detach_mcast(priv->qp, mgid, mlid);
1da177e4 LT	79	if (ret)
	80	ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret);
	81
	82	return ret;
	83	}
	84
5b6810e0	85	int ipoib_init_qp(struct net_device *dev)
1da177e4 LT	86	{
	87	struct ipoib_dev_priv *priv = netdev_priv(dev);
	88	int ret;
1da177e4 LT	89	struct ib_qp_attr qp_attr;
	90	int attr_mask;
	91
26bbf13c YE	92	if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags))
26bbf13c YE	93	return -1;
1da177e4 LT	94
	95	qp_attr.qp_state = IB_QPS_INIT;
	96	qp_attr.qkey = 0;
	97	qp_attr.port_num = priv->port;
26bbf13c	98	qp_attr.pkey_index = priv->pkey_index;
1da177e4 LT	99	attr_mask =
	100	IB_QP_QKEY \|
	101	IB_QP_PORT \|
	102	IB_QP_PKEY_INDEX \|
	103	IB_QP_STATE;
	104	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	105	if (ret) {
	106	ipoib_warn(priv, "failed to modify QP to init, ret = %d\n", ret);
	107	goto out_fail;
	108	}
	109
	110	qp_attr.qp_state = IB_QPS_RTR;
	111	/* Can't set this in a INIT->RTR transition */
	112	attr_mask &= ~IB_QP_PORT;
	113	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	114	if (ret) {
	115	ipoib_warn(priv, "failed to modify QP to RTR, ret = %d\n", ret);
	116	goto out_fail;
	117	}
	118
	119	qp_attr.qp_state = IB_QPS_RTS;
	120	qp_attr.sq_psn = 0;
	121	attr_mask \|= IB_QP_SQ_PSN;
	122	attr_mask &= ~IB_QP_PKEY_INDEX;
	123	ret = ib_modify_qp(priv->qp, &qp_attr, attr_mask);
	124	if (ret) {
	125	ipoib_warn(priv, "failed to modify QP to RTS, ret = %d\n", ret);
	126	goto out_fail;
	127	}
	128
	129	return 0;
	130
	131	out_fail:
5b6810e0 RD	132	qp_attr.qp_state = IB_QPS_RESET;
	133	if (ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE))
	134	ipoib_warn(priv, "Failed to modify QP to RESET state\n");
1da177e4	135
5b6810e0	136	return ret;
1da177e4 LT	137	}
	138
	139	int ipoib_transport_dev_init(struct net_device dev, struct ib_device ca)
	140	{
	141	struct ipoib_dev_priv *priv = netdev_priv(dev);
	142	struct ib_qp_init_attr init_attr = {
	143	.cap = {
0f485251 SM	144	.max_send_wr = ipoib_sendq_size,
0f485251 SM	145	.max_recv_wr = ipoib_recvq_size,
1da177e4	146	.max_send_sge = 1,
bc7b3a36	147	.max_recv_sge = IPOIB_UD_RX_SG
1da177e4 LT	148	},
	149	.sq_sig_type = IB_SIGNAL_ALL_WR,
	150	.qp_type = IB_QPT_UD
	151	};
	152
839fcaba	153	int ret, size;
7143740d	154	int i;
839fcaba	155
1da177e4 LT	156	priv->pd = ib_alloc_pd(priv->ca);
	157	if (IS_ERR(priv->pd)) {
	158	printk(KERN_WARNING "%s: failed to allocate PD\n", ca->name);
	159	return -ENODEV;
	160	}
	161
839fcaba MT	162	priv->mr = ib_get_dma_mr(priv->pd, IB_ACCESS_LOCAL_WRITE);
	163	if (IS_ERR(priv->mr)) {
	164	printk(KERN_WARNING "%s: ib_get_dma_mr failed\n", ca->name);
	165	goto out_free_pd;
	166	}
	167
f56bcd80	168	size = ipoib_recvq_size + 1;
839fcaba	169	ret = ipoib_cm_dev_init(dev);
68e995a2	170	if (!ret) {
f56bcd80	171	size += ipoib_sendq_size;
68e995a2 PS	172	if (ipoib_cm_has_srq(dev))
	173	size += ipoib_recvq_size + 1; /* 1 extra for rx_drain_qp */
	174	else
	175	size += ipoib_recvq_size * ipoib_max_conn_qp;
	176	}
839fcaba	177
f56bcd80 EC	178	priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size, 0);
	179	if (IS_ERR(priv->recv_cq)) {
	180	printk(KERN_WARNING "%s: failed to create receive CQ\n", ca->name);
839fcaba	181	goto out_free_mr;
1da177e4 LT	182	}
1da177e4 LT	183
57ce41d1 EC	184	priv->send_cq = ib_create_cq(priv->ca, ipoib_send_comp_handler, NULL,
57ce41d1 EC	185	dev, ipoib_sendq_size, 0);
f56bcd80 EC	186	if (IS_ERR(priv->send_cq)) {
	187	printk(KERN_WARNING "%s: failed to create send CQ\n", ca->name);
	188	goto out_free_recv_cq;
	189	}
	190
	191	if (ib_req_notify_cq(priv->recv_cq, IB_CQ_NEXT_COMP))
	192	goto out_free_send_cq;
1da177e4	193
f56bcd80 EC	194	init_attr.send_cq = priv->send_cq;
f56bcd80 EC	195	init_attr.recv_cq = priv->recv_cq;
1da177e4	196
40ca1988	197	if (priv->hca_caps & IB_DEVICE_UD_TSO)
12406734 RL	198	init_attr.create_flags \|= IB_QP_CREATE_IPOIB_UD_LSO;
	199
	200	if (priv->hca_caps & IB_DEVICE_BLOCK_MULTICAST_LOOPBACK)
	201	init_attr.create_flags \|= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;
40ca1988	202
7143740d EC	203	if (dev->features & NETIF_F_SG)
	204	init_attr.cap.max_send_sge = MAX_SKB_FRAGS + 1;
	205
1da177e4 LT	206	priv->qp = ib_create_qp(priv->pd, &init_attr);
	207	if (IS_ERR(priv->qp)) {
	208	printk(KERN_WARNING "%s: failed to create QP\n", ca->name);
f56bcd80	209	goto out_free_send_cq;
1da177e4 LT	210	}
	211
	212	priv->dev->dev_addr[1] = (priv->qp->qp_num >> 16) & 0xff;
	213	priv->dev->dev_addr[2] = (priv->qp->qp_num >> 8) & 0xff;
	214	priv->dev->dev_addr[3] = (priv->qp->qp_num ) & 0xff;
	215
7143740d EC	216	for (i = 0; i < MAX_SKB_FRAGS + 1; ++i)
7143740d EC	217	priv->tx_sge[i].lkey = priv->mr->lkey;
1da177e4	218
2337f809	219	priv->tx_wr.opcode = IB_WR_SEND;
7143740d	220	priv->tx_wr.sg_list = priv->tx_sge;
2337f809	221	priv->tx_wr.send_flags = IB_SEND_SIGNALED;
1da177e4	222
bc7b3a36 SM	223	priv->rx_sge[0].lkey = priv->mr->lkey;
	224	if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
	225	priv->rx_sge[0].length = IPOIB_UD_HEAD_SIZE;
	226	priv->rx_sge[1].length = PAGE_SIZE;
	227	priv->rx_sge[1].lkey = priv->mr->lkey;
	228	priv->rx_wr.num_sge = IPOIB_UD_RX_SG;
	229	} else {
	230	priv->rx_sge[0].length = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
	231	priv->rx_wr.num_sge = 1;
	232	}
	233	priv->rx_wr.next = NULL;
	234	priv->rx_wr.sg_list = priv->rx_sge;
	235
1da177e4 LT	236	return 0;
1da177e4 LT	237
f56bcd80 EC	238	out_free_send_cq:
	239	ib_destroy_cq(priv->send_cq);
	240
	241	out_free_recv_cq:
	242	ib_destroy_cq(priv->recv_cq);
1da177e4	243
839fcaba MT	244	out_free_mr:
839fcaba MT	245	ib_dereg_mr(priv->mr);
6958e827	246	ipoib_cm_dev_cleanup(dev);
839fcaba	247
1da177e4 LT	248	out_free_pd:
	249	ib_dealloc_pd(priv->pd);
	250	return -ENODEV;
	251	}
	252
	253	void ipoib_transport_dev_cleanup(struct net_device *dev)
	254	{
	255	struct ipoib_dev_priv *priv = netdev_priv(dev);
	256
	257	if (priv->qp) {
	258	if (ib_destroy_qp(priv->qp))
	259	ipoib_warn(priv, "ib_qp_destroy failed\n");
	260
	261	priv->qp = NULL;
	262	clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
	263	}
	264
f56bcd80 EC	265	if (ib_destroy_cq(priv->send_cq))
	266	ipoib_warn(priv, "ib_cq_destroy (send) failed\n");
	267
	268	if (ib_destroy_cq(priv->recv_cq))
	269	ipoib_warn(priv, "ib_cq_destroy (recv) failed\n");
1da177e4	270
839fcaba MT	271	ipoib_cm_dev_cleanup(dev);
	272
	273	if (ib_dereg_mr(priv->mr))
	274	ipoib_warn(priv, "ib_dereg_mr failed\n");
	275
1da177e4 LT	276	if (ib_dealloc_pd(priv->pd))
	277	ipoib_warn(priv, "ib_dealloc_pd failed\n");
	278	}
	279
	280	void ipoib_event(struct ib_event_handler *handler,
	281	struct ib_event *record)
	282	{
	283	struct ipoib_dev_priv *priv =
	284	container_of(handler, struct ipoib_dev_priv, event_handler);
	285
26bbf13c YE	286	if (record->element.port_num != priv->port)
	287	return;
	288
ee1e2c82 MS	289	ipoib_dbg(priv, "Event %d on device %s port %d\n", record->event,
	290	record->device->name, record->element.port_num);
	291
	292	if (record->event == IB_EVENT_SM_CHANGE \|\|
26bbf13c	293	record->event == IB_EVENT_CLIENT_REREGISTER) {
ee1e2c82 MS	294	queue_work(ipoib_workqueue, &priv->flush_light);
	295	} else if (record->event == IB_EVENT_PORT_ERR \|\|
	296	record->event == IB_EVENT_PORT_ACTIVE \|\|
	297	record->event == IB_EVENT_LID_CHANGE) {
	298	queue_work(ipoib_workqueue, &priv->flush_normal);
26bbf13c	299	} else if (record->event == IB_EVENT_PKEY_CHANGE) {
ee1e2c82	300	queue_work(ipoib_workqueue, &priv->flush_heavy);
1da177e4 LT	301	}
1da177e4 LT	302	}