From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/ipxe/src/net/infiniband/ib_smc.c | 256 +++++++++++++++++++++++++++++ 1 file changed, 256 insertions(+) create mode 100644 qemu/roms/ipxe/src/net/infiniband/ib_smc.c (limited to 'qemu/roms/ipxe/src/net/infiniband/ib_smc.c') diff --git a/qemu/roms/ipxe/src/net/infiniband/ib_smc.c b/qemu/roms/ipxe/src/net/infiniband/ib_smc.c new file mode 100644 index 000000000..4d947d568 --- /dev/null +++ b/qemu/roms/ipxe/src/net/infiniband/ib_smc.c @@ -0,0 +1,256 @@ +/* + * Copyright (C) 2008 Michael Brown . + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include +#include +#include +#include +#include +#include +#include +#include + +/** + * @file + * + * Infiniband Subnet Management Client + * + */ + +/** + * Issue local MAD + * + * @v ibdev Infiniband device + * @v attr_id Attribute ID, in network byte order + * @v attr_mod Attribute modifier, in network byte order + * @v local_mad Method for issuing local MADs + * @v mad Management datagram to fill in + * @ret rc Return status code + */ +static int ib_smc_mad ( struct ib_device *ibdev, uint16_t attr_id, + uint32_t attr_mod, ib_local_mad_t local_mad, + union ib_mad *mad ) { + int rc; + + /* Construct MAD */ + memset ( mad, 0, sizeof ( *mad ) ); + mad->hdr.base_version = IB_MGMT_BASE_VERSION; + mad->hdr.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; + mad->hdr.class_version = 1; + mad->hdr.method = IB_MGMT_METHOD_GET; + mad->hdr.attr_id = attr_id; + mad->hdr.attr_mod = attr_mod; + + /* Issue MAD */ + if ( ( rc = local_mad ( ibdev, mad ) ) != 0 ) + return rc; + + return 0; +} + +/** + * Get node information + * + * @v ibdev Infiniband device + * @v local_mad Method for issuing local MADs + * @v mad Management datagram to fill in + * @ret rc Return status code + */ +static int ib_smc_get_node_info ( struct ib_device *ibdev, + ib_local_mad_t local_mad, + union ib_mad *mad ) { + int rc; + + /* Issue MAD */ + if ( ( rc = ib_smc_mad ( ibdev, htons ( IB_SMP_ATTR_NODE_INFO ), 0, + local_mad, mad ) ) != 0 ) { + DBGC ( ibdev, "IBDEV %p could not get node info: %s\n", + ibdev, strerror ( rc ) ); + return rc; + } + return 0; +} + +/** + * Get port information + * + * @v ibdev Infiniband device + * @v local_mad Method for issuing local MADs + * @v mad Management datagram to fill in + * @ret rc Return status code + */ +static int ib_smc_get_port_info ( struct ib_device *ibdev, + ib_local_mad_t local_mad, + union ib_mad *mad ) { + int rc; + + /* Issue MAD */ + if ( ( rc = ib_smc_mad ( ibdev, htons ( IB_SMP_ATTR_PORT_INFO ), + htonl ( ibdev->port ), local_mad, mad )) !=0){ + DBGC ( ibdev, "IBDEV %p could not get port info: %s\n", + ibdev, strerror ( rc ) ); + return rc; + } + return 0; +} + +/** + * Get GUID information + * + * @v ibdev Infiniband device + * @v local_mad Method for issuing local MADs + * @v mad Management datagram to fill in + * @ret rc Return status code + */ +static int ib_smc_get_guid_info ( struct ib_device *ibdev, + ib_local_mad_t local_mad, + union ib_mad *mad ) { + int rc; + + /* Issue MAD */ + if ( ( rc = ib_smc_mad ( ibdev, htons ( IB_SMP_ATTR_GUID_INFO ), 0, + local_mad, mad ) ) != 0 ) { + DBGC ( ibdev, "IBDEV %p could not get GUID info: %s\n", + ibdev, strerror ( rc ) ); + return rc; + } + return 0; +} + +/** + * Get partition key table + * + * @v ibdev Infiniband device + * @v local_mad Method for issuing local MADs + * @v mad Management datagram to fill in + * @ret rc Return status code + */ +static int ib_smc_get_pkey_table ( struct ib_device *ibdev, + ib_local_mad_t local_mad, + union ib_mad *mad ) { + int rc; + + /* Issue MAD */ + if ( ( rc = ib_smc_mad ( ibdev, htons ( IB_SMP_ATTR_PKEY_TABLE ), 0, + local_mad, mad ) ) != 0 ) { + DBGC ( ibdev, "IBDEV %p could not get pkey table: %s\n", + ibdev, strerror ( rc ) ); + return rc; + } + return 0; +} + +/** + * Get Infiniband parameters using SMC + * + * @v ibdev Infiniband device + * @v local_mad Method for issuing local MADs + * @ret rc Return status code + */ +static int ib_smc_get ( struct ib_device *ibdev, ib_local_mad_t local_mad ) { + union ib_mad mad; + struct ib_node_info *node_info = &mad.smp.smp_data.node_info; + struct ib_port_info *port_info = &mad.smp.smp_data.port_info; + struct ib_guid_info *guid_info = &mad.smp.smp_data.guid_info; + struct ib_pkey_table *pkey_table = &mad.smp.smp_data.pkey_table; + int rc; + + /* Node info gives us the node GUID */ + if ( ( rc = ib_smc_get_node_info ( ibdev, local_mad, &mad ) ) != 0 ) + return rc; + memcpy ( &ibdev->node_guid, &node_info->node_guid, + sizeof ( ibdev->node_guid ) ); + + /* Port info gives us the link state, the first half of the + * port GID and the SM LID. + */ + if ( ( rc = ib_smc_get_port_info ( ibdev, local_mad, &mad ) ) != 0 ) + return rc; + memcpy ( &ibdev->gid.s.prefix, port_info->gid_prefix, + sizeof ( ibdev->gid.s.prefix ) ); + ibdev->lid = ntohs ( port_info->lid ); + ibdev->sm_lid = ntohs ( port_info->mastersm_lid ); + ibdev->link_width_enabled = port_info->link_width_enabled; + ibdev->link_width_supported = port_info->link_width_supported; + ibdev->link_width_active = port_info->link_width_active; + ibdev->link_speed_supported = + ( port_info->link_speed_supported__port_state >> 4 ); + ibdev->port_state = + ( port_info->link_speed_supported__port_state & 0xf ); + ibdev->link_speed_active = + ( port_info->link_speed_active__link_speed_enabled >> 4 ); + ibdev->link_speed_enabled = + ( port_info->link_speed_active__link_speed_enabled & 0xf ); + ibdev->sm_sl = ( port_info->neighbour_mtu__mastersm_sl & 0xf ); + + /* GUID info gives us the second half of the port GID */ + if ( ( rc = ib_smc_get_guid_info ( ibdev, local_mad, &mad ) ) != 0 ) + return rc; + memcpy ( &ibdev->gid.s.guid, guid_info->guid[0], + sizeof ( ibdev->gid.s.guid ) ); + + /* Get partition key */ + if ( ( rc = ib_smc_get_pkey_table ( ibdev, local_mad, &mad ) ) != 0 ) + return rc; + ibdev->pkey = ntohs ( pkey_table->pkey[0] ); + + DBGC ( ibdev, "IBDEV %p port GID is " IB_GID_FMT "\n", + ibdev, IB_GID_ARGS ( &ibdev->gid ) ); + + return 0; +} + +/** + * Initialise Infiniband parameters using SMC + * + * @v ibdev Infiniband device + * @v local_mad Method for issuing local MADs + * @ret rc Return status code + */ +int ib_smc_init ( struct ib_device *ibdev, ib_local_mad_t local_mad ) { + int rc; + + /* Get MAD parameters */ + if ( ( rc = ib_smc_get ( ibdev, local_mad ) ) != 0 ) + return rc; + + return 0; +} + +/** + * Update Infiniband parameters using SMC + * + * @v ibdev Infiniband device + * @v local_mad Method for issuing local MADs + * @ret rc Return status code + */ +int ib_smc_update ( struct ib_device *ibdev, ib_local_mad_t local_mad ) { + int rc; + + /* Get MAD parameters */ + if ( ( rc = ib_smc_get ( ibdev, local_mad ) ) != 0 ) + return rc; + + /* Notify Infiniband core of potential link state change */ + ib_link_state_changed ( ibdev ); + + return 0; +} -- cgit 1.2.3-korg