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/*
* 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;
}
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