[net-next-2.6.git] / drivers / infiniband / hw / ehca / ehca_hca.c

/*
 *  IBM eServer eHCA Infiniband device driver for Linux on POWER
 *
 *  HCA query functions
 *
 *  Authors: Heiko J Schick <schickhj@de.ibm.com>
 *           Christoph Raisch <raisch@de.ibm.com>
 *
 *  Copyright (c) 2005 IBM Corporation
 *
 *  All rights reserved.
 *
 *  This source code is distributed under a dual license of GPL v2.0 and OpenIB
 *  BSD.
 *
 * OpenIB 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.
 *
 * 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 "ehca_tools.h"
#include "hcp_if.h"

int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
{
	int ret = 0;
	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
					      ib_device);
	struct hipz_query_hca *rblock;

	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
	if (!rblock) {
		ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
		return -ENOMEM;
	}

	if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) {
		ehca_err(&shca->ib_device, "Can't query device properties");
		ret = -EINVAL;
		goto query_device1;
	}

	memset(props, 0, sizeof(struct ib_device_attr));
	props->fw_ver          = rblock->hw_ver;
	props->max_mr_size     = rblock->max_mr_size;
	props->vendor_id       = rblock->vendor_id >> 8;
	props->vendor_part_id  = rblock->vendor_part_id >> 16;
	props->hw_ver          = rblock->hw_ver;
	props->max_qp          = min_t(int, rblock->max_qp, INT_MAX);
	props->max_qp_wr       = min_t(int, rblock->max_wqes_wq, INT_MAX);
	props->max_sge         = min_t(int, rblock->max_sge, INT_MAX);
	props->max_sge_rd      = min_t(int, rblock->max_sge_rd, INT_MAX);
	props->max_cq          = min_t(int, rblock->max_cq, INT_MAX);
	props->max_cqe         = min_t(int, rblock->max_cqe, INT_MAX);
	props->max_mr          = min_t(int, rblock->max_mr, INT_MAX);
	props->max_mw          = min_t(int, rblock->max_mw, INT_MAX);
	props->max_pd          = min_t(int, rblock->max_pd, INT_MAX);
	props->max_ah          = min_t(int, rblock->max_ah, INT_MAX);
	props->max_fmr         = min_t(int, rblock->max_mr, INT_MAX);
	props->max_srq         = 0;
	props->max_srq_wr      = 0;
	props->max_srq_sge     = 0;
	props->max_pkeys       = 16;
	props->local_ca_ack_delay
		= rblock->local_ca_ack_delay;
	props->max_raw_ipv6_qp
		= min_t(int, rblock->max_raw_ipv6_qp, INT_MAX);
	props->max_raw_ethy_qp
		= min_t(int, rblock->max_raw_ethy_qp, INT_MAX);
	props->max_mcast_grp
		= min_t(int, rblock->max_mcast_grp, INT_MAX);
	props->max_mcast_qp_attach
		= min_t(int, rblock->max_mcast_qp_attach, INT_MAX);
	props->max_total_mcast_qp_attach
		= min_t(int, rblock->max_total_mcast_qp_attach, INT_MAX);

query_device1:
	kfree(rblock);

	return ret;
}

int ehca_query_port(struct ib_device *ibdev,
		    u8 port, struct ib_port_attr *props)
{
	int ret = 0;
	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
					      ib_device);
	struct hipz_query_port *rblock;

	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
	if (!rblock) {
		ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
		return -ENOMEM;
	}

	if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
		ehca_err(&shca->ib_device, "Can't query port properties");
		ret = -EINVAL;
		goto query_port1;
	}

	memset(props, 0, sizeof(struct ib_port_attr));
	props->state = rblock->state;

	switch (rblock->max_mtu) {
	case 0x1:
		props->active_mtu = props->max_mtu = IB_MTU_256;
		break;
	case 0x2:
		props->active_mtu = props->max_mtu = IB_MTU_512;
		break;
	case 0x3:
		props->active_mtu = props->max_mtu = IB_MTU_1024;
		break;
	case 0x4:
		props->active_mtu = props->max_mtu = IB_MTU_2048;
		break;
	case 0x5:
		props->active_mtu = props->max_mtu = IB_MTU_4096;
		break;
	default:
		ehca_err(&shca->ib_device, "Unknown MTU size: %x.",
			 rblock->max_mtu);
		break;
	}

	props->gid_tbl_len     = rblock->gid_tbl_len;
	props->max_msg_sz      = rblock->max_msg_sz;
	props->bad_pkey_cntr   = rblock->bad_pkey_cntr;
	props->qkey_viol_cntr  = rblock->qkey_viol_cntr;
	props->pkey_tbl_len    = rblock->pkey_tbl_len;
	props->lid             = rblock->lid;
	props->sm_lid          = rblock->sm_lid;
	props->lmc             = rblock->lmc;
	props->sm_sl           = rblock->sm_sl;
	props->subnet_timeout  = rblock->subnet_timeout;
	props->init_type_reply = rblock->init_type_reply;

	props->active_width    = IB_WIDTH_12X;
	props->active_speed    = 0x1;

query_port1:
	kfree(rblock);

	return ret;
}

int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
{
	int ret = 0;
	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device);
	struct hipz_query_port *rblock;

	if (index > 16) {
		ehca_err(&shca->ib_device, "Invalid index: %x.", index);
		return -EINVAL;
	}

	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
	if (!rblock) {
		ehca_err(&shca->ib_device,  "Can't allocate rblock memory.");
		return -ENOMEM;
	}

	if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
		ehca_err(&shca->ib_device, "Can't query port properties");
		ret = -EINVAL;
		goto query_pkey1;
	}

	memcpy(pkey, &rblock->pkey_entries + index, sizeof(u16));

query_pkey1:
	kfree(rblock);

	return ret;
}

int ehca_query_gid(struct ib_device *ibdev, u8 port,
		   int index, union ib_gid *gid)
{
	int ret = 0;
	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
					      ib_device);
	struct hipz_query_port *rblock;

	if (index > 255) {
		ehca_err(&shca->ib_device, "Invalid index: %x.", index);
		return -EINVAL;
	}

	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
	if (!rblock) {
		ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
		return -ENOMEM;
	}

	if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
		ehca_err(&shca->ib_device, "Can't query port properties");
		ret = -EINVAL;
		goto query_gid1;
	}

	memcpy(&gid->raw[0], &rblock->gid_prefix, sizeof(u64));
	memcpy(&gid->raw[8], &rblock->guid_entries[index], sizeof(u64));

query_gid1:
	kfree(rblock);

	return ret;
}

int ehca_modify_port(struct ib_device *ibdev,
		     u8 port, int port_modify_mask,
		     struct ib_port_modify *props)
{
	/* Not implemented yet */
	return -EFAULT;
}
Commit	Line	Data
fab97220 HS	1	/*
	2	* IBM eServer eHCA Infiniband device driver for Linux on POWER
	3	*
	4	* HCA query functions
	5	*
	6	* Authors: Heiko J Schick <schickhj@de.ibm.com>
	7	* Christoph Raisch <raisch@de.ibm.com>
	8	*
	9	* Copyright (c) 2005 IBM Corporation
	10	*
	11	* All rights reserved.
	12	*
	13	* This source code is distributed under a dual license of GPL v2.0 and OpenIB
	14	* BSD.
	15	*
	16	* OpenIB BSD License
	17	*
	18	* Redistribution and use in source and binary forms, with or without
	19	* modification, are permitted provided that the following conditions are met:
	20	*
	21	* Redistributions of source code must retain the above copyright notice, this
	22	* list of conditions and the following disclaimer.
	23	*
	24	* Redistributions in binary form must reproduce the above copyright notice,
	25	* this list of conditions and the following disclaimer in the documentation
	26	* and/or other materials
	27	* provided with the distribution.
	28	*
	29	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	30	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	31	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	32	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
	33	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	34	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	35	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	36	* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
	37	* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	38	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	39	* POSSIBILITY OF SUCH DAMAGE.
	40	*/
	41
	42	#include "ehca_tools.h"
	43	#include "hcp_if.h"
	44
	45	int ehca_query_device(struct ib_device ibdev, struct ib_device_attr props)
	46	{
	47	int ret = 0;
	48	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
	49	ib_device);
	50	struct hipz_query_hca *rblock;
	51
	52	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
	53	if (!rblock) {
	54	ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
	55	return -ENOMEM;
	56	}
	57
	58	if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) {
	59	ehca_err(&shca->ib_device, "Can't query device properties");
	60	ret = -EINVAL;
	61	goto query_device1;
	62	}
	63
	64	memset(props, 0, sizeof(struct ib_device_attr));
65	props->fw_ver = rblock->hw_ver;
66	props->max_mr_size = rblock->max_mr_size;
67	props->vendor_id = rblock->vendor_id >> 8;
68	props->vendor_part_id = rblock->vendor_part_id >> 16;
69	props->hw_ver = rblock->hw_ver;
70	props->max_qp = min_t(int, rblock->max_qp, INT_MAX);
71	props->max_qp_wr = min_t(int, rblock->max_wqes_wq, INT_MAX);
72	props->max_sge = min_t(int, rblock->max_sge, INT_MAX);
73	props->max_sge_rd = min_t(int, rblock->max_sge_rd, INT_MAX);
74	props->max_cq = min_t(int, rblock->max_cq, INT_MAX);
75	props->max_cqe = min_t(int, rblock->max_cqe, INT_MAX);
76	props->max_mr = min_t(int, rblock->max_mr, INT_MAX);
77	props->max_mw = min_t(int, rblock->max_mw, INT_MAX);
78	props->max_pd = min_t(int, rblock->max_pd, INT_MAX);
79	props->max_ah = min_t(int, rblock->max_ah, INT_MAX);
80	props->max_fmr = min_t(int, rblock->max_mr, INT_MAX);
81	props->max_srq = 0;
82	props->max_srq_wr = 0;
83	props->max_srq_sge = 0;
84	props->max_pkeys = 16;
85	props->local_ca_ack_delay
86	= rblock->local_ca_ack_delay;
87	props->max_raw_ipv6_qp
88	= min_t(int, rblock->max_raw_ipv6_qp, INT_MAX);
89	props->max_raw_ethy_qp
90	= min_t(int, rblock->max_raw_ethy_qp, INT_MAX);
91	props->max_mcast_grp
92	= min_t(int, rblock->max_mcast_grp, INT_MAX);
93	props->max_mcast_qp_attach
94	= min_t(int, rblock->max_mcast_qp_attach, INT_MAX);
95	props->max_total_mcast_qp_attach
96	= min_t(int, rblock->max_total_mcast_qp_attach, INT_MAX);
97
98	query_device1:
99	kfree(rblock);
100
101	return ret;
102	}
103
104	int ehca_query_port(struct ib_device *ibdev,
105	u8 port, struct ib_port_attr *props)
106	{
107	int ret = 0;
108	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
109	ib_device);
110	struct hipz_query_port *rblock;
111
112	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
113	if (!rblock) {
114	ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
115	return -ENOMEM;
116	}
117
118	if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
119	ehca_err(&shca->ib_device, "Can't query port properties");
120	ret = -EINVAL;
121	goto query_port1;
122	}
123
124	memset(props, 0, sizeof(struct ib_port_attr));
125	props->state = rblock->state;
126
127	switch (rblock->max_mtu) {
128	case 0x1:
129	props->active_mtu = props->max_mtu = IB_MTU_256;
130	break;
131	case 0x2:
132	props->active_mtu = props->max_mtu = IB_MTU_512;
133	break;
134	case 0x3:
135	props->active_mtu = props->max_mtu = IB_MTU_1024;
136	break;
137	case 0x4:
138	props->active_mtu = props->max_mtu = IB_MTU_2048;
139	break;
140	case 0x5:
141	props->active_mtu = props->max_mtu = IB_MTU_4096;
142	break;
143	default:
144	ehca_err(&shca->ib_device, "Unknown MTU size: %x.",
145	rblock->max_mtu);
146	break;
147	}
148
149	props->gid_tbl_len = rblock->gid_tbl_len;
150	props->max_msg_sz = rblock->max_msg_sz;
151	props->bad_pkey_cntr = rblock->bad_pkey_cntr;
152	props->qkey_viol_cntr = rblock->qkey_viol_cntr;
153	props->pkey_tbl_len = rblock->pkey_tbl_len;
154	props->lid = rblock->lid;
155	props->sm_lid = rblock->sm_lid;
156	props->lmc = rblock->lmc;
157	props->sm_sl = rblock->sm_sl;
158	props->subnet_timeout = rblock->subnet_timeout;
159	props->init_type_reply = rblock->init_type_reply;
160
161	props->active_width = IB_WIDTH_12X;
162	props->active_speed = 0x1;
163
164	query_port1:
165	kfree(rblock);
166
167	return ret;
168	}
169
170	int ehca_query_pkey(struct ib_device ibdev, u8 port, u16 index, u16 pkey)
171	{
172	int ret = 0;
173	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device);
174	struct hipz_query_port *rblock;
175
176	if (index > 16) {
177	ehca_err(&shca->ib_device, "Invalid index: %x.", index);
178	return -EINVAL;
179	}
180
181	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
182	if (!rblock) {
183	ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
184	return -ENOMEM;
185	}
186
187	if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
188	ehca_err(&shca->ib_device, "Can't query port properties");
189	ret = -EINVAL;
190	goto query_pkey1;
191	}
192
193	memcpy(pkey, &rblock->pkey_entries + index, sizeof(u16));
194
195	query_pkey1:
196	kfree(rblock);
197
198	return ret;
199	}
200
201	int ehca_query_gid(struct ib_device *ibdev, u8 port,
202	int index, union ib_gid *gid)
203	{
204	int ret = 0;
205	struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
206	ib_device);
207	struct hipz_query_port *rblock;
208
209	if (index > 255) {
210	ehca_err(&shca->ib_device, "Invalid index: %x.", index);
211	return -EINVAL;
212	}
213
214	rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
215	if (!rblock) {
216	ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
217	return -ENOMEM;
218	}
219
220	if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
221	ehca_err(&shca->ib_device, "Can't query port properties");
222	ret = -EINVAL;
223	goto query_gid1;
224	}
225
226	memcpy(&gid->raw[0], &rblock->gid_prefix, sizeof(u64));
227	memcpy(&gid->raw[8], &rblock->guid_entries[index], sizeof(u64));
228
229	query_gid1:
230	kfree(rblock);
231
232	return ret;
233	}
234
235	int ehca_modify_port(struct ib_device *ibdev,
236	u8 port, int port_modify_mask,
237	struct ib_port_modify *props)
238	{
239	/* Not implemented yet */
240	return -EFAULT;
241	}