diff options
Diffstat (limited to 'gpxe/src/net/infiniband/ib_smc.c')
| -rw-r--r-- | gpxe/src/net/infiniband/ib_smc.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/gpxe/src/net/infiniband/ib_smc.c b/gpxe/src/net/infiniband/ib_smc.c deleted file mode 100644 index d308dd9d..00000000 --- a/gpxe/src/net/infiniband/ib_smc.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>. - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <byteswap.h> -#include <gpxe/infiniband.h> -#include <gpxe/ib_smc.h> - -/** - * @file - * - * Infiniband Subnet Management Client - * - */ - -/** - * 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; - - /* 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 = htons ( IB_SMP_ATTR_PORT_INFO ); - mad->hdr.attr_mod = htonl ( ibdev->port ); - - if ( ( rc = local_mad ( ibdev, 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; - - /* 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 = htons ( IB_SMP_ATTR_GUID_INFO ); - - if ( ( rc = local_mad ( ibdev, 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; - - /* 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 = htons ( IB_SMP_ATTR_PKEY_TABLE ); - - if ( ( rc = local_mad ( ibdev, mad ) ) != 0 ) { - DBGC ( ibdev, "IBDEV %p could not get pkey table: %s\n", - ibdev, strerror ( rc ) ); - return rc; - } - return 0; -} - -/** - * Get MAD parameters - * - * @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 ) { - union ib_mad mad; - 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; - - /* 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.u.half[0], port_info->gid_prefix, - sizeof ( ibdev->gid.u.half[0] ) ); - 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.u.half[1], guid_info->guid[0], - sizeof ( ibdev->gid.u.half[1] ) ); - - /* 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 %08x:%08x:%08x:%08x\n", ibdev, - htonl ( ibdev->gid.u.dwords[0] ), - htonl ( ibdev->gid.u.dwords[1] ), - htonl ( ibdev->gid.u.dwords[2] ), - htonl ( ibdev->gid.u.dwords[3] ) ); - - return 0; -} |