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[infiniband] Update subnet management agent to use a management interface

pull/1/head
Michael Brown 2009-08-03 17:47:55 +01:00
parent 0e07516f62
commit 44251ebb9a
8 changed files with 412 additions and 313 deletions
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8
src/drivers/infiniband/linda.c
View File

@ -1606,15 +1606,15 @@ static int linda_read_eeprom ( struct linda *linda,
/* Read GUID */
if ( ( rc = i2c->read ( i2c, &linda->eeprom, LINDA_EEPROM_GUID_OFFSET,
guid->bytes, sizeof ( *guid ) ) ) != 0 ) {
guid->u.bytes, sizeof ( *guid ) ) ) != 0 ) {
DBGC ( linda, "Linda %p could not read GUID: %s\n",
linda, strerror ( rc ) );
return rc;
}
DBGC2 ( linda, "Linda %p has GUID %02x:%02x:%02x:%02x:%02x:%02x:"
"%02x:%02x\n", linda, guid->bytes[0], guid->bytes[1],
guid->bytes[2], guid->bytes[3], guid->bytes[4],
guid->bytes[5], guid->bytes[6], guid->bytes[7] );
"%02x:%02x\n", linda, guid->u.bytes[0], guid->u.bytes[1],
guid->u.bytes[2], guid->u.bytes[3], guid->u.bytes[4],
guid->u.bytes[5], guid->u.bytes[6], guid->u.bytes[7] );
/* Read serial number (debug only) */
if ( DBG_LOG ) {

3
src/include/gpxe/ib_mad.h
View File

@ -30,9 +30,6 @@ struct ib_smp_hdr {
uint8_t reserved[28];
} __attribute__ (( packed ));
/** Bits to ignore in the management class for subnet management MADs */
#define IB_SMP_CLASS_IGNORE 0x80
/** Subnet management class version */
#define IB_SMP_CLASS_VERSION 1

4
src/include/gpxe/ib_packet.h
View File

@ -16,7 +16,11 @@ struct io_buffer;
/** Half of an Infiniband Global Identifier */
struct ib_gid_half {
union {
uint8_t bytes[8];
uint16_t words[4];
uint32_t dwords[2];
} u;
};
/** An Infiniband Global Identifier */

20
src/include/gpxe/ib_sma.h 100644
View File

@ -0,0 +1,20 @@
#ifndef _GPXE_IB_SMA_H
#define _GPXE_IB_SMA_H
/** @file
*
* Infiniband subnet management agent
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
struct ib_device;
struct ib_mad_interface;
extern int ib_create_sma ( struct ib_device *ibdev,
struct ib_mad_interface *mi );
extern void ib_destroy_sma ( struct ib_device *ibdev,
struct ib_mad_interface *mi );
#endif /* _GPXE_IB_SMA_H */

5
src/include/gpxe/infiniband.h
View File

@ -45,6 +45,7 @@ struct ib_device;
struct ib_queue_pair;
struct ib_address_vector;
struct ib_completion_queue;
struct ib_mad_interface;
struct ib_gma;
/** Infiniband transmission rates */
@ -413,8 +414,8 @@ struct ib_device {
*/
uint32_t rdma_key;
/** Subnet management agent */
struct ib_gma *sma;
/** Subnet management interface */
struct ib_mad_interface *smi;
/** General management agent */
struct ib_gma *gma;

24
src/net/infiniband.c
View File

@ -33,6 +33,8 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/ipoib.h>
#include <gpxe/process.h>
#include <gpxe/infiniband.h>
#include <gpxe/ib_mi.h>
#include <gpxe/ib_sma.h>
#include <gpxe/ib_gma.h>
/** @file
@ -534,11 +536,18 @@ int ib_open ( struct ib_device *ibdev ) {
return 0;
}
/* Create subnet management agent */
ibdev->sma = ib_create_gma ( ibdev, IB_QPT_SMI );
if ( ! ibdev->sma ) {
DBGC ( ibdev, "IBDEV %p could not create SMA\n", ibdev );
/* Create subnet management interface */
ibdev->smi = ib_create_mi ( ibdev, IB_QPT_SMI );
if ( ! ibdev->smi ) {
DBGC ( ibdev, "IBDEV %p could not create SMI\n", ibdev );
rc = -ENOMEM;
goto err_create_smi;
}
/* Create subnet management agent */
if ( ( rc = ib_create_sma ( ibdev, ibdev->smi ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %p could not create SMA: %s\n",
ibdev, strerror ( rc ) );
goto err_create_sma;
}
@ -564,8 +573,10 @@ int ib_open ( struct ib_device *ibdev ) {
err_open:
ib_destroy_gma ( ibdev->gma );
err_create_gma:
ib_destroy_gma ( ibdev->sma );
ib_destroy_sma ( ibdev, ibdev->smi );
err_create_sma:
ib_destroy_mi ( ibdev, ibdev->smi );
err_create_smi:
assert ( ibdev->open_count == 1 );
ibdev->open_count = 0;
return rc;
@ -584,7 +595,8 @@ void ib_close ( struct ib_device *ibdev ) {
/* Close device if this was the last remaining requested opening */
if ( ibdev->open_count == 0 ) {
ib_destroy_gma ( ibdev->gma );
ib_destroy_gma ( ibdev->sma );
ib_destroy_sma ( ibdev, ibdev->smi );
ib_destroy_mi ( ibdev, ibdev->smi );
ibdev->op->close ( ibdev );
}
}

297
src/net/infiniband/ib_gma.c
View File

@ -74,303 +74,6 @@ struct ib_mad_request {
/** TID to use for next MAD request */
static unsigned int next_request_tid;
/*****************************************************************************
*
* Subnet management MAD handlers
*
*****************************************************************************
*/
/**
* Construct directed route response, if necessary
*
* @v gma General management agent
* @v mad MAD response without DR fields filled in
* @ret mad MAD response with DR fields filled in
*/
static union ib_mad * ib_sma_dr_response ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_mad_hdr *hdr = &mad->hdr;
struct ib_mad_smp *smp = &mad->smp;
unsigned int hop_pointer;
unsigned int hop_count;
/* Set response fields for directed route SMPs */
if ( hdr->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE ) {
hdr->status |= htons ( IB_SMP_STATUS_D_INBOUND );
hop_pointer = smp->mad_hdr.class_specific.smp.hop_pointer;
hop_count = smp->mad_hdr.class_specific.smp.hop_count;
assert ( hop_count == hop_pointer );
if ( hop_pointer < ( sizeof ( smp->return_path.hops ) /
sizeof ( smp->return_path.hops[0] ) ) ) {
smp->return_path.hops[hop_pointer] = gma->ibdev->port;
} else {
DBGC ( gma, "GMA %p invalid hop pointer %d\n",
gma, hop_pointer );
return NULL;
}
}
return mad;
}
/**
* Get node information
*
* @v gma General management agent
* @v mad MAD
* @ret response MAD response
*/
static union ib_mad * ib_sma_get_node_info ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_device *ibdev = gma->ibdev;
struct ib_node_info *node_info = &mad->smp.smp_data.node_info;
memset ( node_info, 0, sizeof ( *node_info ) );
node_info->base_version = IB_MGMT_BASE_VERSION;
node_info->class_version = IB_SMP_CLASS_VERSION;
node_info->node_type = IB_NODE_TYPE_HCA;
node_info->num_ports = ib_get_hca_info ( ibdev, &node_info->sys_guid );
memcpy ( &node_info->node_guid, &node_info->sys_guid,
sizeof ( node_info->node_guid ) );
memcpy ( &node_info->port_guid, &ibdev->gid.u.half[1],
sizeof ( node_info->port_guid ) );
node_info->partition_cap = htons ( 1 );
node_info->local_port_num = ibdev->port;
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
return ib_sma_dr_response ( gma, mad );
}
/**
* Get node description
*
* @v gma General management agent
* @v mad MAD
* @ret response MAD response
*/
static union ib_mad * ib_sma_get_node_desc ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_device *ibdev = gma->ibdev;
struct ib_node_desc *node_desc = &mad->smp.smp_data.node_desc;
struct ib_gid_half *guid = &ibdev->gid.u.half[1];
memset ( node_desc, 0, sizeof ( *node_desc ) );
snprintf ( node_desc->node_string, sizeof ( node_desc->node_string ),
"gPXE %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x (%s)",
guid->bytes[0], guid->bytes[1], guid->bytes[2],
guid->bytes[3], guid->bytes[4], guid->bytes[5],
guid->bytes[6], guid->bytes[7], ibdev->dev->name );
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
return ib_sma_dr_response ( gma, mad );
}
/**
* Get GUID information
*
* @v gma General management agent
* @v mad MAD
* @ret response MAD response
*/
static union ib_mad * ib_sma_get_guid_info ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_device *ibdev = gma->ibdev;
struct ib_guid_info *guid_info = &mad->smp.smp_data.guid_info;
memset ( guid_info, 0, sizeof ( *guid_info ) );
memcpy ( guid_info->guid[0], &ibdev->gid.u.half[1],
sizeof ( guid_info->guid[0] ) );
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
return ib_sma_dr_response ( gma, mad );
}
/**
* Get port information
*
* @v gma General management agent
* @v mad MAD
* @ret response MAD response
*/
static union ib_mad * ib_sma_get_port_info ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_device *ibdev = gma->ibdev;
struct ib_port_info *port_info = &mad->smp.smp_data.port_info;
memset ( port_info, 0, sizeof ( *port_info ) );
memcpy ( port_info->gid_prefix, &ibdev->gid.u.half[0],
sizeof ( port_info->gid_prefix ) );
port_info->lid = ntohs ( ibdev->lid );
port_info->mastersm_lid = ntohs ( ibdev->sm_lid );
port_info->local_port_num = ibdev->port;
port_info->link_width_enabled = ibdev->link_width_enabled;
port_info->link_width_supported = ibdev->link_width_supported;
port_info->link_width_active = ibdev->link_width_active;
port_info->link_speed_supported__port_state =
( ( ibdev->link_speed_supported << 4 ) | ibdev->port_state );
port_info->port_phys_state__link_down_def_state =
( ( IB_PORT_PHYS_STATE_POLLING << 4 ) |
IB_PORT_PHYS_STATE_POLLING );
port_info->link_speed_active__link_speed_enabled =
( ( ibdev->link_speed_active << 4 ) |
ibdev->link_speed_enabled );
port_info->neighbour_mtu__mastersm_sl =
( ( IB_MTU_2048 << 4 ) | ibdev->sm_sl );
port_info->vl_cap__init_type = ( IB_VL_0 << 4 );
port_info->init_type_reply__mtu_cap = IB_MTU_2048;
port_info->operational_vls__enforcement = ( IB_VL_0 << 4 );
port_info->guid_cap = 1;
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
return ib_sma_dr_response ( gma, mad );
}
/**
* Set port information
*
* @v gma General management agent
* @v mad MAD
* @ret response MAD response
*/
static union ib_mad * ib_sma_set_port_info ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_device *ibdev = gma->ibdev;
const struct ib_port_info *port_info = &mad->smp.smp_data.port_info;
unsigned int link_width_enabled;
unsigned int link_speed_enabled;
int 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 );
if ( ( link_width_enabled = port_info->link_width_enabled ) )
ibdev->link_width_enabled = link_width_enabled;
if ( ( link_speed_enabled =
( port_info->link_speed_active__link_speed_enabled & 0xf ) ) )
ibdev->link_speed_enabled = link_speed_enabled;
ibdev->sm_sl = ( port_info->neighbour_mtu__mastersm_sl & 0xf );
DBGC ( gma, "GMA %p set LID %04x SMLID %04x link width %02x speed "
"%02x\n", gma, ibdev->lid, ibdev->sm_lid,
ibdev->link_width_enabled, ibdev->link_speed_enabled );
if ( ( rc = ib_set_port_info ( ibdev, mad ) ) != 0 ) {
DBGC ( gma, "GMA %p could not set port information: %s\n",
gma, strerror ( rc ) );
mad->hdr.status =
htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
}
return ib_sma_get_port_info ( gma, mad );
}
/**
* Get partition key table
*
* @v gma General management agent
* @v mad MAD
* @ret response MAD response
*/
static union ib_mad * ib_sma_get_pkey_table ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_device *ibdev = gma->ibdev;
struct ib_pkey_table *pkey_table = &mad->smp.smp_data.pkey_table;
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
memset ( pkey_table, 0, sizeof ( *pkey_table ) );
pkey_table->pkey[0] = htons ( ibdev->pkey );
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
return ib_sma_dr_response ( gma, mad );
}
/**
* Set partition key table
*
* @v gma General management agent
* @v mad MAD
* @ret response MAD response
*/
static union ib_mad * ib_sma_set_pkey_table ( struct ib_gma *gma,
union ib_mad *mad ) {
struct ib_device *ibdev = gma->ibdev;
struct ib_pkey_table *pkey_table = &mad->smp.smp_data.pkey_table;
int rc;
ibdev->pkey = ntohs ( pkey_table->pkey[0] );
DBGC ( gma, "GMA %p set pkey %04x\n", gma, ibdev->pkey );
if ( ( rc = ib_set_pkey_table ( ibdev, mad ) ) != 0 ) {
DBGC ( gma, "GMA %p could not set pkey table: %s\n",
gma, strerror ( rc ) );
mad->hdr.status =
htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
}
return ib_sma_get_pkey_table ( gma, mad );
}
/** List of attribute handlers */
struct ib_gma_handler ib_sma_handlers[] __ib_gma_handler = {
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
.class_version = IB_SMP_CLASS_VERSION,
.method = IB_MGMT_METHOD_GET,
.attr_id = htons ( IB_SMP_ATTR_NODE_INFO ),
.handle = ib_sma_get_node_info,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
.class_version = IB_SMP_CLASS_VERSION,
.method = IB_MGMT_METHOD_GET,
.attr_id = htons ( IB_SMP_ATTR_NODE_DESC ),
.handle = ib_sma_get_node_desc,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
.class_version = IB_SMP_CLASS_VERSION,
.method = IB_MGMT_METHOD_GET,
.attr_id = htons ( IB_SMP_ATTR_GUID_INFO ),
.handle = ib_sma_get_guid_info,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
.class_version = IB_SMP_CLASS_VERSION,
.method = IB_MGMT_METHOD_GET,
.attr_id = htons ( IB_SMP_ATTR_PORT_INFO ),
.handle = ib_sma_get_port_info,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
.class_version = IB_SMP_CLASS_VERSION,
.method = IB_MGMT_METHOD_SET,
.attr_id = htons ( IB_SMP_ATTR_PORT_INFO ),
.handle = ib_sma_set_port_info,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
.class_version = IB_SMP_CLASS_VERSION,
.method = IB_MGMT_METHOD_GET,
.attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE ),
.handle = ib_sma_get_pkey_table,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
.class_version = IB_SMP_CLASS_VERSION,
.method = IB_MGMT_METHOD_SET,
.attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE ),
.handle = ib_sma_set_pkey_table,
},
};
/*****************************************************************************
*
* General management agent

362
src/net/infiniband/ib_sma.c 100644
View File

@ -0,0 +1,362 @@
/*
* Copyright (C) 2009 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 <stdio.h>
#include <unistd.h>
#include <byteswap.h>
#include <gpxe/infiniband.h>
#include <gpxe/iobuf.h>
#include <gpxe/ib_mi.h>
#include <gpxe/ib_sma.h>
/**
* @file
*
* Infiniband Subnet Management Agent
*
*/
/**
* Node information
*
* @v ibdev Infiniband device
* @v mi Management interface
* @v mad Received MAD
* @v av Source address vector
*/
static void ib_sma_node_info ( struct ib_device *ibdev,
struct ib_mad_interface *mi,
union ib_mad *mad,
struct ib_address_vector *av ) {
struct ib_node_info *node_info = &mad->smp.smp_data.node_info;
int rc;
/* Fill in information */
memset ( node_info, 0, sizeof ( *node_info ) );
node_info->base_version = IB_MGMT_BASE_VERSION;
node_info->class_version = IB_SMP_CLASS_VERSION;
node_info->node_type = IB_NODE_TYPE_HCA;
node_info->num_ports = ib_get_hca_info ( ibdev, &node_info->sys_guid );
memcpy ( &node_info->node_guid, &node_info->sys_guid,
sizeof ( node_info->node_guid ) );
memcpy ( &node_info->port_guid, &ibdev->gid.u.half[1],
sizeof ( node_info->port_guid ) );
node_info->partition_cap = htons ( 1 );
node_info->local_port_num = ibdev->port;
/* Send GetResponse */
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
if ( ( rc = ib_mi_send ( ibdev, mi, mad, av ) ) != 0 ) {
DBGC ( mi, "SMA %p could not send NodeInfo GetResponse: %s\n",
mi, strerror ( rc ) );
return;
}
}
/**
* Node description
*
* @v ibdev Infiniband device
* @v mi Management interface
* @v mad Received MAD
* @v av Source address vector
*/
static void ib_sma_node_desc ( struct ib_device *ibdev,
struct ib_mad_interface *mi,
union ib_mad *mad,
struct ib_address_vector *av ) {
struct ib_node_desc *node_desc = &mad->smp.smp_data.node_desc;
struct ib_gid_half *guid = &ibdev->gid.u.half[1];
int rc;
/* Fill in information */
memset ( node_desc, 0, sizeof ( *node_desc ) );
snprintf ( node_desc->node_string, sizeof ( node_desc->node_string ),
"gPXE %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x (%s)",
guid->u.bytes[0], guid->u.bytes[1], guid->u.bytes[2],
guid->u.bytes[3], guid->u.bytes[4], guid->u.bytes[5],
guid->u.bytes[6], guid->u.bytes[7], ibdev->dev->name );
/* Send GetResponse */
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
if ( ( rc = ib_mi_send ( ibdev, mi, mad, av ) ) != 0 ) {
DBGC ( mi, "SMA %p could not send NodeDesc GetResponse: %s\n",
mi, strerror ( rc ) );
return;
}
}
/**
* GUID information
*
* @v ibdev Infiniband device
* @v mi Management interface
* @v mad Received MAD
* @v av Source address vector
*/
static void ib_sma_guid_info ( struct ib_device *ibdev,
struct ib_mad_interface *mi,
union ib_mad *mad,
struct ib_address_vector *av ) {
struct ib_guid_info *guid_info = &mad->smp.smp_data.guid_info;
int rc;
/* Fill in information */
memset ( guid_info, 0, sizeof ( *guid_info ) );
memcpy ( guid_info->guid[0], &ibdev->gid.u.half[1],
sizeof ( guid_info->guid[0] ) );
/* Send GetResponse */
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
if ( ( rc = ib_mi_send ( ibdev, mi, mad, av ) ) != 0 ) {
DBGC ( mi, "SMA %p could not send GuidInfo GetResponse: %s\n",
mi, strerror ( rc ) );
return;
}
}
/**
* Set port information
*
* @v ibdev Infiniband device
* @v mi Management interface
* @v mad Received MAD
* @ret rc Return status code
*/
static int ib_sma_set_port_info ( struct ib_device *ibdev,
struct ib_mad_interface *mi,
union ib_mad *mad ) {
const struct ib_port_info *port_info = &mad->smp.smp_data.port_info;
unsigned int link_width_enabled;
unsigned int link_speed_enabled;
int rc;
/* Set parameters */
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 );
if ( ( link_width_enabled = port_info->link_width_enabled ) )
ibdev->link_width_enabled = link_width_enabled;
if ( ( link_speed_enabled =
( port_info->link_speed_active__link_speed_enabled & 0xf ) ) )
ibdev->link_speed_enabled = link_speed_enabled;
ibdev->sm_sl = ( port_info->neighbour_mtu__mastersm_sl & 0xf );
DBGC ( mi, "SMA %p set LID %04x SMLID %04x link width %02x speed "
"%02x\n", mi, ibdev->lid, ibdev->sm_lid,
ibdev->link_width_enabled, ibdev->link_speed_enabled );
/* Update parameters on device */
if ( ( rc = ib_set_port_info ( ibdev, mad ) ) != 0 ) {
DBGC ( mi, "SMA %p could not set port information: %s\n",
mi, strerror ( rc ) );
return rc;
}
return 0;
}
/**
* Port information
*
* @v ibdev Infiniband device
* @v mi Management interface
* @v mad Received MAD
* @v av Source address vector
*/
static void ib_sma_port_info ( struct ib_device *ibdev,
struct ib_mad_interface *mi,
union ib_mad *mad,
struct ib_address_vector *av ) {
struct ib_port_info *port_info = &mad->smp.smp_data.port_info;
int rc;
/* Set parameters if applicable */
if ( mad->hdr.method == IB_MGMT_METHOD_SET ) {
if ( ( rc = ib_sma_set_port_info ( ibdev, mi, mad ) ) != 0 ) {
mad->hdr.status =
htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
/* Fall through to generate GetResponse */
}
}
/* Fill in information */
memset ( port_info, 0, sizeof ( *port_info ) );
memcpy ( port_info->gid_prefix, &ibdev->gid.u.half[0],
sizeof ( port_info->gid_prefix ) );
port_info->lid = ntohs ( ibdev->lid );
port_info->mastersm_lid = ntohs ( ibdev->sm_lid );
port_info->local_port_num = ibdev->port;
port_info->link_width_enabled = ibdev->link_width_enabled;
port_info->link_width_supported = ibdev->link_width_supported;
port_info->link_width_active = ibdev->link_width_active;
port_info->link_speed_supported__port_state =
( ( ibdev->link_speed_supported << 4 ) | ibdev->port_state );
port_info->port_phys_state__link_down_def_state =
( ( IB_PORT_PHYS_STATE_POLLING << 4 ) |
IB_PORT_PHYS_STATE_POLLING );
port_info->link_speed_active__link_speed_enabled =
( ( ibdev->link_speed_active << 4 ) |
ibdev->link_speed_enabled );
port_info->neighbour_mtu__mastersm_sl =
( ( IB_MTU_2048 << 4 ) | ibdev->sm_sl );
port_info->vl_cap__init_type = ( IB_VL_0 << 4 );
port_info->init_type_reply__mtu_cap = IB_MTU_2048;
port_info->operational_vls__enforcement = ( IB_VL_0 << 4 );
port_info->guid_cap = 1;
/* Send GetResponse */
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
if ( ( rc = ib_mi_send ( ibdev, mi, mad, av ) ) != 0 ) {
DBGC ( mi, "SMA %p could not send PortInfo GetResponse: %s\n",
mi, strerror ( rc ) );
return;
}
}
/**
* Set partition key table
*
* @v ibdev Infiniband device
* @v mi Management interface
* @v mad Received MAD
* @ret rc Return status code
*/
static int ib_sma_set_pkey_table ( struct ib_device *ibdev,
struct ib_mad_interface *mi,
union ib_mad *mad ) {
struct ib_pkey_table *pkey_table = &mad->smp.smp_data.pkey_table;
int rc;
/* Set parameters */
ibdev->pkey = ntohs ( pkey_table->pkey[0] );
DBGC ( mi, "SMA %p set pkey %04x\n", mi, ibdev->pkey );
/* Update parameters on device */
if ( ( rc = ib_set_pkey_table ( ibdev, mad ) ) != 0 ) {
DBGC ( mi, "SMA %p could not set pkey table: %s\n",
mi, strerror ( rc ) );
return rc;
}
return 0;
}
/**
* Partition key table
*
* @v ibdev Infiniband device
* @v mi Management interface
* @v mad Received MAD
* @v av Source address vector
*/
static void ib_sma_pkey_table ( struct ib_device *ibdev,
struct ib_mad_interface *mi,
union ib_mad *mad,
struct ib_address_vector *av ) {
struct ib_pkey_table *pkey_table = &mad->smp.smp_data.pkey_table;
int rc;
/* Set parameters, if applicable */
if ( mad->hdr.method == IB_MGMT_METHOD_SET ) {
if ( ( rc = ib_sma_set_pkey_table ( ibdev, mi, mad ) ) != 0 ) {
mad->hdr.status =
htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
/* Fall through to generate GetResponse */
}
}
/* Fill in information */
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
memset ( pkey_table, 0, sizeof ( *pkey_table ) );
pkey_table->pkey[0] = htons ( ibdev->pkey );
/* Send GetResponse */
mad->hdr.method = IB_MGMT_METHOD_GET_RESP;
if ( ( rc = ib_mi_send ( ibdev, mi, mad, av ) ) != 0 ) {
DBGC ( mi, "SMA %p could not send PKeyTable GetResponse: %s\n",
mi, strerror ( rc ) );
return;
}
}
/** Subnet management agent */
struct ib_mad_agent ib_sma_agent[] __ib_mad_agent = {
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.class_version = IB_SMP_CLASS_VERSION,
.attr_id = htons ( IB_SMP_ATTR_NODE_INFO ),
.handle = ib_sma_node_info,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.class_version = IB_SMP_CLASS_VERSION,
.attr_id = htons ( IB_SMP_ATTR_NODE_DESC ),
.handle = ib_sma_node_desc,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.class_version = IB_SMP_CLASS_VERSION,
.attr_id = htons ( IB_SMP_ATTR_GUID_INFO ),
.handle = ib_sma_guid_info,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.class_version = IB_SMP_CLASS_VERSION,
.attr_id = htons ( IB_SMP_ATTR_PORT_INFO ),
.handle = ib_sma_port_info,
},
{
.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
.class_version = IB_SMP_CLASS_VERSION,
.attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE ),
.handle = ib_sma_pkey_table,
},
};
/**
* Create subnet management agent and interface
*
* @v ibdev Infiniband device
* @v mi Management interface
* @ret rc Return status code
*/
int ib_create_sma ( struct ib_device *ibdev, struct ib_mad_interface *mi ) {
/* Nothing to do */
DBGC ( ibdev, "IBDEV %p SMA using SMI %p\n", ibdev, mi );
return 0;
}
/**
* Destroy subnet management agent and interface
*
* @v ibdev Infiniband device
* @v mi Management interface
*/
void ib_destroy_sma ( struct ib_device *ibdev __unused,
struct ib_mad_interface *mi __unused ) {
/* Nothing to do */
}