[deliverable/linux.git] / drivers / infiniband / sw / rdmavt / vt.c

/*
 * Copyright(c) 2015 Intel Corporation.
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * BSD LICENSE
 *
 * 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.
 *  - Neither the name of Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include "vt.h"

MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("RDMA Verbs Transport Library");

static int rvt_init(void)
{
	/* Do any work needed prior to drivers calling for registration*/
	return 0;
}
module_init(rvt_init);

static void rvt_cleanup(void)
{
}
module_exit(rvt_cleanup);

static int rvt_query_device(struct ib_device *ibdev,
			    struct ib_device_attr *props,
			    struct ib_udata *uhw)
{
	/*
	 * Return rvt_dev_info.props contents
	 */
	return -EOPNOTSUPP;
}

static int rvt_modify_device(struct ib_device *device,
			     int device_modify_mask,
			     struct ib_device_modify *device_modify)
{
	/*
	 * Change dev props. Planned support is for node desc change and sys
	 * guid change only. This matches hfi1 and qib behavior. Other drivers
	 * that support existing modifications will need to add their support.
	 */

	/*
	 * VT-DRIVER-API: node_desc_change()
	 * VT-DRIVER-API: sys_guid_change()
	 */
	return -EOPNOTSUPP;
}

/**
 * rvt_query_port: Passes the query port call to the driver
 * @ibdev: Verbs IB dev
 * @port: port number
 * @props: structure to hold returned properties
 *
 * Returns 0 on success
 */
static int rvt_query_port(struct ib_device *ibdev, u8 port,
			  struct ib_port_attr *props)
{
	/*
	 * VT-DRIVER-API: query_port_state()
	 * driver returns pretty much everything in ib_port_attr
	 */
	return -EOPNOTSUPP;
}

/**
 * rvt_modify_port
 * @ibdev: Verbs IB dev
 * @port: Port number
 * @port_modify_mask: How to change the port
 * @props: Structure to fill in
 *
 * Returns 0 on success
 */
static int rvt_modify_port(struct ib_device *ibdev, u8 port,
			   int port_modify_mask, struct ib_port_modify *props)
{
	/*
	 * VT-DRIVER-API: set_link_state()
	 * driver will set the link state using the IB enumeration
	 *
	 * VT-DRIVER-API: clear_qkey_violations()
	 * clears driver private qkey counter
	 *
	 * VT-DRIVER-API: get_lid()
	 * driver needs to return the LID
	 *
	 * TBD: send_trap() and post_mad_send() need examined to see where they
	 * fit in.
	 */
	return -EOPNOTSUPP;
}

/**
 * rvt_query_pkey - Return a pkey from the table at a given index
 * @ibdev: Verbs IB dev
 * @port: Port number
 * @intex: Index into pkey table
 *
 * Returns 0 on failure pkey otherwise
 */
static int rvt_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
			  u16 *pkey)
{
	/*
	 * Driver will be responsible for keeping rvt_dev_info.pkey_table up to
	 * date. This function will just return that value. There is no need to
	 * lock, if a stale value is read and sent to the user so be it there is
	 * no way to protect against that anyway.
	 */
	return 0;
}

/**
 * rvt_query_gid - Return a gid from the table
 * @ibdev: Verbs IB dev
 * @port: Port number
 * @index: = Index in table
 * @gid: Gid to return
 *
 * Returns 0 on success
 */
static int rvt_query_gid(struct ib_device *ibdev, u8 port,
			 int index, union ib_gid *gid)
{
	/*
	 * Driver is responsible for updating the guid table. Which will be used
	 * to craft the return value. This will work similar to how query_pkey()
	 * is being done.
	 */

	return -EOPNOTSUPP;
}

/**
 * rvt_alloc_ucontext - Allocate a user context
 * @ibdev: Vers IB dev
 * @data: User data allocated
 */
static struct ib_ucontext *rvt_alloc_ucontext(struct ib_device *ibdev,
					      struct ib_udata *udata)
{
	return ERR_PTR(-EOPNOTSUPP);
}

/**
 *rvt_dealloc_ucontext - Free a user context
 *@context - Free this
 */
static int rvt_dealloc_ucontext(struct ib_ucontext *context)
{
	return -EOPNOTSUPP;
}

static int rvt_get_port_immutable(struct ib_device *ibdev, u8 port_num,
				  struct ib_port_immutable *immutable)
{
	return -EOPNOTSUPP;
}

/*
 * Check driver override. If driver passes a value use it, otherwise we use our
 * own value.
 */
#define CHECK_DRIVER_OVERRIDE(rdi, x) \
	rdi->ibdev.x = rdi->ibdev.x ? : rvt_ ##x

int rvt_register_device(struct rvt_dev_info *rdi)
{
	/* Validate that drivers have provided the right information */
	int ret = 0;

	if (!rdi)
		return -EINVAL;

	if ((!rdi->driver_f.port_callback) ||
	    (!rdi->driver_f.get_card_name) ||
	    (!rdi->driver_f.get_pci_dev) ||
	    (!rdi->driver_f.check_ah)) {
		pr_err("Driver not supporting req func\n");
		return -EINVAL;
	}

	if (!rdi->dparms.nports) {
		rvt_pr_err(rdi, "Driver says it has no ports.\n");
		return -EINVAL;
	}

	rdi->ports = kcalloc(rdi->dparms.nports,
			     sizeof(struct rvt_ibport **),
			     GFP_KERNEL);
	if (!rdi->ports) {
		rvt_pr_err(rdi, "Could not allocate port mem.\n");
		return -ENOMEM;
	}

	/* Once we get past here we can use the rvt_pr macros */

	/* Dev Ops */
	CHECK_DRIVER_OVERRIDE(rdi, query_device);
	CHECK_DRIVER_OVERRIDE(rdi, modify_device);
	CHECK_DRIVER_OVERRIDE(rdi, query_port);
	CHECK_DRIVER_OVERRIDE(rdi, modify_port);
	CHECK_DRIVER_OVERRIDE(rdi, query_pkey);
	CHECK_DRIVER_OVERRIDE(rdi, query_gid);
	CHECK_DRIVER_OVERRIDE(rdi, alloc_ucontext);
	CHECK_DRIVER_OVERRIDE(rdi, dealloc_ucontext);
	CHECK_DRIVER_OVERRIDE(rdi, get_port_immutable);

	/* Queue Pairs */
	ret = rvt_driver_qp_init(rdi);
	if (ret) {
		pr_err("Error in driver QP init.\n");
		return -EINVAL;
	}

	CHECK_DRIVER_OVERRIDE(rdi, create_qp);
	CHECK_DRIVER_OVERRIDE(rdi, modify_qp);
	CHECK_DRIVER_OVERRIDE(rdi, destroy_qp);
	CHECK_DRIVER_OVERRIDE(rdi, query_qp);
	CHECK_DRIVER_OVERRIDE(rdi, post_send);
	CHECK_DRIVER_OVERRIDE(rdi, post_recv);
	CHECK_DRIVER_OVERRIDE(rdi, post_srq_recv);

	/* Address Handle */
	CHECK_DRIVER_OVERRIDE(rdi, create_ah);
	CHECK_DRIVER_OVERRIDE(rdi, destroy_ah);
	CHECK_DRIVER_OVERRIDE(rdi, modify_ah);
	CHECK_DRIVER_OVERRIDE(rdi, query_ah);
	spin_lock_init(&rdi->n_ahs_lock);
	rdi->n_ahs_allocated = 0;

	/* Shared Receive Queue */
	CHECK_DRIVER_OVERRIDE(rdi, create_srq);
	CHECK_DRIVER_OVERRIDE(rdi, modify_srq);
	CHECK_DRIVER_OVERRIDE(rdi, destroy_srq);
	CHECK_DRIVER_OVERRIDE(rdi, query_srq);

	/* Multicast */
	CHECK_DRIVER_OVERRIDE(rdi, attach_mcast);
	CHECK_DRIVER_OVERRIDE(rdi, detach_mcast);

	/* Mem Region */
	ret = rvt_driver_mr_init(rdi);
	if (ret) {
		pr_err("Error in driver MR init.\n");
		goto bail_no_mr;
	}

	CHECK_DRIVER_OVERRIDE(rdi, get_dma_mr);
	CHECK_DRIVER_OVERRIDE(rdi, reg_user_mr);
	CHECK_DRIVER_OVERRIDE(rdi, dereg_mr);
	CHECK_DRIVER_OVERRIDE(rdi, alloc_mr);
	CHECK_DRIVER_OVERRIDE(rdi, alloc_fmr);
	CHECK_DRIVER_OVERRIDE(rdi, map_phys_fmr);
	CHECK_DRIVER_OVERRIDE(rdi, unmap_fmr);
	CHECK_DRIVER_OVERRIDE(rdi, dealloc_fmr);
	CHECK_DRIVER_OVERRIDE(rdi, mmap);

	/* Completion queues */
	CHECK_DRIVER_OVERRIDE(rdi, create_cq);
	CHECK_DRIVER_OVERRIDE(rdi, destroy_cq);
	CHECK_DRIVER_OVERRIDE(rdi, poll_cq);
	CHECK_DRIVER_OVERRIDE(rdi, req_notify_cq);
	CHECK_DRIVER_OVERRIDE(rdi, resize_cq);

	/* DMA Operations */
	rdi->ibdev.dma_ops =
		rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;

	/* Protection Domain */
	CHECK_DRIVER_OVERRIDE(rdi, alloc_pd);
	CHECK_DRIVER_OVERRIDE(rdi, dealloc_pd);
	spin_lock_init(&rdi->n_pds_lock);
	rdi->n_pds_allocated = 0;

	/* We are now good to announce we exist */
	ret =  ib_register_device(&rdi->ibdev, rdi->driver_f.port_callback);
	if (ret) {
		rvt_pr_err(rdi, "Failed to register driver with ib core.\n");
		goto bail_mr;
	}

	rvt_pr_info(rdi, "Registration with rdmavt done.\n");
	return ret;

bail_mr:
	rvt_mr_exit(rdi);

bail_no_mr:
	rvt_qp_exit(rdi);

	return ret;
}
EXPORT_SYMBOL(rvt_register_device);

void rvt_unregister_device(struct rvt_dev_info *rdi)
{
	if (!rdi)
		return;

	ib_unregister_device(&rdi->ibdev);
	rvt_mr_exit(rdi);
}
EXPORT_SYMBOL(rvt_unregister_device);

/*
 * Keep track of a list of ports. No need to have a detach port.
 * They persist until the driver goes away.
 */
void rvt_attach_port(struct rvt_dev_info *rdi, struct rvt_ibport *port,
		     int portnum)
{
	rdi->ports[portnum] = port;
}
EXPORT_SYMBOL(rvt_attach_port);
Commit	Line	Data
0194621b DD	1	/*
	2	* Copyright(c) 2015 Intel Corporation.
	3	*
	4	* This file is provided under a dual BSD/GPLv2 license. When using or
	5	* redistributing this file, you may do so under either license.
	6	*
	7	* GPL LICENSE SUMMARY
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of version 2 of the GNU General Public License as
	11	* published by the Free Software Foundation.
	12	*
	13	* This program is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* BSD LICENSE
	19	*
	20	* Redistribution and use in source and binary forms, with or without
	21	* modification, are permitted provided that the following conditions
	22	* are met:
	23	*
	24	* - Redistributions of source code must retain the above copyright
	25	* notice, this list of conditions and the following disclaimer.
	26	* - Redistributions in binary form must reproduce the above copyright
	27	* notice, this list of conditions and the following disclaimer in
	28	* the documentation and/or other materials provided with the
	29	* distribution.
	30	* - Neither the name of Intel Corporation nor the names of its
	31	* contributors may be used to endorse or promote products derived
	32	* from this software without specific prior written permission.
	33	*
	34	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	35	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	36	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	37	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	38	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	39	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	40	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	41	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	42	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	43	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	44	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	45	*
	46	*/
	47
	48	#include <linux/module.h>
	49	#include <linux/kernel.h>
	50	#include "vt.h"
	51
	52	MODULE_LICENSE("Dual BSD/GPL");
	53	MODULE_DESCRIPTION("RDMA Verbs Transport Library");
	54
	55	static int rvt_init(void)
	56	{
	57	/* Do any work needed prior to drivers calling for registration*/
	58	return 0;
	59	}
	60	module_init(rvt_init);
	61
	62	static void rvt_cleanup(void)
	63	{
	64	}
65	module_exit(rvt_cleanup);
66
19ef1edd DD	67	static int rvt_query_device(struct ib_device *ibdev,
	68	struct ib_device_attr *props,
	69	struct ib_udata *uhw)
	70	{
	71	/*
	72	* Return rvt_dev_info.props contents
	73	*/
	74	return -EOPNOTSUPP;
	75	}
	76
	77	static int rvt_modify_device(struct ib_device *device,
	78	int device_modify_mask,
	79	struct ib_device_modify *device_modify)
	80	{
	81	/*
	82	* Change dev props. Planned support is for node desc change and sys
	83	* guid change only. This matches hfi1 and qib behavior. Other drivers
	84	* that support existing modifications will need to add their support.
	85	*/
	86
	87	/*
	88	* VT-DRIVER-API: node_desc_change()
	89	* VT-DRIVER-API: sys_guid_change()
	90	*/
	91	return -EOPNOTSUPP;
	92	}
	93
765525c1 DD	94	/**
	95	* rvt_query_port: Passes the query port call to the driver
	96	* @ibdev: Verbs IB dev
	97	* @port: port number
	98	* @props: structure to hold returned properties
	99	*
	100	* Returns 0 on success
	101	*/
	102	static int rvt_query_port(struct ib_device *ibdev, u8 port,
	103	struct ib_port_attr *props)
	104	{
	105	/*
	106	* VT-DRIVER-API: query_port_state()
	107	* driver returns pretty much everything in ib_port_attr
	108	*/
	109	return -EOPNOTSUPP;
	110	}
	111
	112	/**
	113	* rvt_modify_port
	114	* @ibdev: Verbs IB dev
	115	* @port: Port number
	116	* @port_modify_mask: How to change the port
	117	* @props: Structure to fill in
	118	*
	119	* Returns 0 on success
	120	*/
	121	static int rvt_modify_port(struct ib_device *ibdev, u8 port,
	122	int port_modify_mask, struct ib_port_modify *props)
	123	{
	124	/*
	125	* VT-DRIVER-API: set_link_state()
	126	* driver will set the link state using the IB enumeration
	127	*
	128	* VT-DRIVER-API: clear_qkey_violations()
	129	* clears driver private qkey counter
	130	*
	131	* VT-DRIVER-API: get_lid()
	132	* driver needs to return the LID
	133	*
	134	* TBD: send_trap() and post_mad_send() need examined to see where they
	135	* fit in.
	136	*/
	137	return -EOPNOTSUPP;
	138	}
	139
30588643 DD	140	/**
	141	* rvt_query_pkey - Return a pkey from the table at a given index
	142	* @ibdev: Verbs IB dev
	143	* @port: Port number
	144	* @intex: Index into pkey table
	145	*
	146	* Returns 0 on failure pkey otherwise
	147	*/
	148	static int rvt_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
	149	u16 *pkey)
	150	{
	151	/*
	152	* Driver will be responsible for keeping rvt_dev_info.pkey_table up to
	153	* date. This function will just return that value. There is no need to
	154	* lock, if a stale value is read and sent to the user so be it there is
	155	* no way to protect against that anyway.
	156	*/
	157	return 0;
	158	}
	159
2d092e11 DD	160	/**
	161	* rvt_query_gid - Return a gid from the table
	162	* @ibdev: Verbs IB dev
	163	* @port: Port number
	164	* @index: = Index in table
	165	* @gid: Gid to return
	166	*
	167	* Returns 0 on success
	168	*/
	169	static int rvt_query_gid(struct ib_device *ibdev, u8 port,
	170	int index, union ib_gid *gid)
	171	{
	172	/*
	173	* Driver is responsible for updating the guid table. Which will be used
	174	* to craft the return value. This will work similar to how query_pkey()
	175	* is being done.
	176	*/
	177
	178	return -EOPNOTSUPP;
	179	}
	180
c4ed7d8b DD	181	/**
	182	* rvt_alloc_ucontext - Allocate a user context
	183	* @ibdev: Vers IB dev
	184	* @data: User data allocated
	185	*/
	186	static struct ib_ucontext rvt_alloc_ucontext(struct ib_device ibdev,
	187	struct ib_udata *udata)
	188	{
	189	return ERR_PTR(-EOPNOTSUPP);
	190	}
	191
	192	/**
	193	*rvt_dealloc_ucontext - Free a user context
	194	*@context - Free this
	195	*/
	196	static int rvt_dealloc_ucontext(struct ib_ucontext *context)
	197	{
	198	return -EOPNOTSUPP;
	199	}
	200
e6a8818a DD	201	static int rvt_get_port_immutable(struct ib_device *ibdev, u8 port_num,
	202	struct ib_port_immutable *immutable)
	203	{
	204	return -EOPNOTSUPP;
	205	}
	206
4997870a DD	207	/*
	208	* Check driver override. If driver passes a value use it, otherwise we use our
	209	* own value.
	210	*/
	211	#define CHECK_DRIVER_OVERRIDE(rdi, x) \
	212	rdi->ibdev.x = rdi->ibdev.x ? : rvt_ ##x
	213
0194621b DD	214	int rvt_register_device(struct rvt_dev_info *rdi)
0194621b DD	215	{
b534875d	216	/* Validate that drivers have provided the right information */
7b1e2099 DD	217	int ret = 0;
7b1e2099 DD	218
0194621b DD	219	if (!rdi)
	220	return -EINVAL;
	221
b534875d DD	222	if ((!rdi->driver_f.port_callback) \|\|
b534875d DD	223	(!rdi->driver_f.get_card_name) \|\|
119a8e70 KH	224	(!rdi->driver_f.get_pci_dev) \|\|
119a8e70 KH	225	(!rdi->driver_f.check_ah)) {
0acb0cc7	226	pr_err("Driver not supporting req func\n");
b534875d DD	227	return -EINVAL;
	228	}
	229
0acb0cc7 DD	230	if (!rdi->dparms.nports) {
	231	rvt_pr_err(rdi, "Driver says it has no ports.\n");
	232	return -EINVAL;
	233	}
	234
	235	rdi->ports = kcalloc(rdi->dparms.nports,
	236	sizeof(struct rvt_ibport **),
	237	GFP_KERNEL);
	238	if (!rdi->ports) {
	239	rvt_pr_err(rdi, "Could not allocate port mem.\n");
	240	return -ENOMEM;
	241	}
	242
b534875d DD	243	/* Once we get past here we can use the rvt_pr macros */
b534875d DD	244
19ef1edd DD	245	/* Dev Ops */
	246	CHECK_DRIVER_OVERRIDE(rdi, query_device);
	247	CHECK_DRIVER_OVERRIDE(rdi, modify_device);
765525c1 DD	248	CHECK_DRIVER_OVERRIDE(rdi, query_port);
765525c1 DD	249	CHECK_DRIVER_OVERRIDE(rdi, modify_port);
30588643	250	CHECK_DRIVER_OVERRIDE(rdi, query_pkey);
2d092e11	251	CHECK_DRIVER_OVERRIDE(rdi, query_gid);
c4ed7d8b DD	252	CHECK_DRIVER_OVERRIDE(rdi, alloc_ucontext);
c4ed7d8b DD	253	CHECK_DRIVER_OVERRIDE(rdi, dealloc_ucontext);
e6a8818a	254	CHECK_DRIVER_OVERRIDE(rdi, get_port_immutable);
19ef1edd	255
b518d3e6	256	/* Queue Pairs */
0acb0cc7 DD	257	ret = rvt_driver_qp_init(rdi);
	258	if (ret) {
	259	pr_err("Error in driver QP init.\n");
	260	return -EINVAL;
	261	}
	262
b518d3e6 DD	263	CHECK_DRIVER_OVERRIDE(rdi, create_qp);
	264	CHECK_DRIVER_OVERRIDE(rdi, modify_qp);
	265	CHECK_DRIVER_OVERRIDE(rdi, destroy_qp);
	266	CHECK_DRIVER_OVERRIDE(rdi, query_qp);
8cf4020b DD	267	CHECK_DRIVER_OVERRIDE(rdi, post_send);
	268	CHECK_DRIVER_OVERRIDE(rdi, post_recv);
	269	CHECK_DRIVER_OVERRIDE(rdi, post_srq_recv);
b518d3e6	270
4c1e4972 DD	271	/* Address Handle */
	272	CHECK_DRIVER_OVERRIDE(rdi, create_ah);
	273	CHECK_DRIVER_OVERRIDE(rdi, destroy_ah);
	274	CHECK_DRIVER_OVERRIDE(rdi, modify_ah);
	275	CHECK_DRIVER_OVERRIDE(rdi, query_ah);
119a8e70 KH	276	spin_lock_init(&rdi->n_ahs_lock);
119a8e70 KH	277	rdi->n_ahs_allocated = 0;
4c1e4972	278
aad9158b DD	279	/* Shared Receive Queue */
	280	CHECK_DRIVER_OVERRIDE(rdi, create_srq);
	281	CHECK_DRIVER_OVERRIDE(rdi, modify_srq);
	282	CHECK_DRIVER_OVERRIDE(rdi, destroy_srq);
	283	CHECK_DRIVER_OVERRIDE(rdi, query_srq);
	284
9fa25171 DD	285	/* Multicast */
	286	CHECK_DRIVER_OVERRIDE(rdi, attach_mcast);
	287	CHECK_DRIVER_OVERRIDE(rdi, detach_mcast);
	288
2a055eb7	289	/* Mem Region */
7b1e2099 DD	290	ret = rvt_driver_mr_init(rdi);
7b1e2099 DD	291	if (ret) {
36055a06	292	pr_err("Error in driver MR init.\n");
7b1e2099 DD	293	goto bail_no_mr;
	294	}
	295
2a055eb7 DD	296	CHECK_DRIVER_OVERRIDE(rdi, get_dma_mr);
	297	CHECK_DRIVER_OVERRIDE(rdi, reg_user_mr);
	298	CHECK_DRIVER_OVERRIDE(rdi, dereg_mr);
	299	CHECK_DRIVER_OVERRIDE(rdi, alloc_mr);
	300	CHECK_DRIVER_OVERRIDE(rdi, alloc_fmr);
	301	CHECK_DRIVER_OVERRIDE(rdi, map_phys_fmr);
	302	CHECK_DRIVER_OVERRIDE(rdi, unmap_fmr);
	303	CHECK_DRIVER_OVERRIDE(rdi, dealloc_fmr);
dc21752e	304	CHECK_DRIVER_OVERRIDE(rdi, mmap);
2a055eb7	305
cf16335a DD	306	/* Completion queues */
	307	CHECK_DRIVER_OVERRIDE(rdi, create_cq);
	308	CHECK_DRIVER_OVERRIDE(rdi, destroy_cq);
	309	CHECK_DRIVER_OVERRIDE(rdi, poll_cq);
	310	CHECK_DRIVER_OVERRIDE(rdi, req_notify_cq);
	311	CHECK_DRIVER_OVERRIDE(rdi, resize_cq);
	312
8afd32eb	313	/* DMA Operations */
c1b332bc DD	314	rdi->ibdev.dma_ops =
	315	rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;
	316
8afd32eb	317	/* Protection Domain */
4997870a DD	318	CHECK_DRIVER_OVERRIDE(rdi, alloc_pd);
4997870a DD	319	CHECK_DRIVER_OVERRIDE(rdi, dealloc_pd);
8afd32eb DD	320	spin_lock_init(&rdi->n_pds_lock);
	321	rdi->n_pds_allocated = 0;
	322
7b1e2099 DD	323	/* We are now good to announce we exist */
	324	ret = ib_register_device(&rdi->ibdev, rdi->driver_f.port_callback);
	325	if (ret) {
	326	rvt_pr_err(rdi, "Failed to register driver with ib core.\n");
	327	goto bail_mr;
	328	}
	329
b534875d	330	rvt_pr_info(rdi, "Registration with rdmavt done.\n");
7b1e2099	331	return ret;
aec57787	332
7b1e2099 DD	333	bail_mr:
	334	rvt_mr_exit(rdi);
	335
	336	bail_no_mr:
0acb0cc7 DD	337	rvt_qp_exit(rdi);
0acb0cc7 DD	338
7b1e2099	339	return ret;
0194621b DD	340	}
	341	EXPORT_SYMBOL(rvt_register_device);
	342
	343	void rvt_unregister_device(struct rvt_dev_info *rdi)
	344	{
	345	if (!rdi)
	346	return;
	347
	348	ib_unregister_device(&rdi->ibdev);
7b1e2099	349	rvt_mr_exit(rdi);
0194621b DD	350	}
0194621b DD	351	EXPORT_SYMBOL(rvt_unregister_device);
f3d01bbc DD	352
	353	/*
	354	* Keep track of a list of ports. No need to have a detach port.
	355	* They persist until the driver goes away.
	356	*/
	357	void rvt_attach_port(struct rvt_dev_info rdi, struct rvt_ibport port,
	358	int portnum)
	359	{
	360	rdi->ports[portnum] = port;
	361	}
	362	EXPORT_SYMBOL(rvt_attach_port);