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[infiniband] Always create an SMA and a GMA

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This commit is contained in:
Michael Brown 2009-07-09 03:49:37 +01:00
parent 80c41b90d2
commit 92cf240020
9 changed files with 299 additions and 390 deletions
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13
src/drivers/infiniband/linda.c
View File

@ -30,7 +30,6 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/bitbash.h>
#include <gpxe/malloc.h>
#include <gpxe/iobuf.h>
#include <gpxe/ib_sma.h>
#include "linda.h"
/**
@ -97,9 +96,6 @@ struct linda {
struct i2c_bit_basher i2c;
/** I2C serial EEPROM */
struct i2c_device eeprom;
/** Subnet management agent */
struct ib_sma sma;
};
/***************************************************************************
@ -2335,12 +2331,6 @@ static int linda_probe ( struct pci_device *pci,
if ( ( rc = linda_init_ib_serdes ( linda ) ) != 0 )
goto err_init_ib_serdes;
/* Create the SMA */
if ( ( rc = ib_create_sma ( &linda->sma, ibdev ) ) != 0 )
goto err_create_sma;
/* If the SMA doesn't get context 0, we're screwed */
assert ( linda_qpn_to_ctx ( linda->sma.gma.qp->qpn ) == 0 );
/* Register Infiniband device */
if ( ( rc = register_ibdev ( ibdev ) ) != 0 ) {
DBGC ( linda, "Linda %p could not register IB "
@ -2352,8 +2342,6 @@ static int linda_probe ( struct pci_device *pci,
unregister_ibdev ( ibdev );
err_register_ibdev:
ib_destroy_sma ( &linda->sma );
err_create_sma:
linda_fini_recv ( linda );
err_init_recv:
linda_fini_send ( linda );
@ -2376,7 +2364,6 @@ static void linda_remove ( struct pci_device *pci ) {
struct linda *linda = ib_get_drvdata ( ibdev );
unregister_ibdev ( ibdev );
ib_destroy_sma ( &linda->sma );
linda_fini_recv ( linda );
linda_fini_send ( linda );
ibdev_put ( ibdev );

10
src/include/gpxe/ib_gma.h
View File

@ -12,13 +12,9 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/list.h>
#include <gpxe/retry.h>
#include <gpxe/tables.h>
#include <gpxe/infiniband.h>
struct ib_device;
struct ib_completion_queue;
struct ib_queue_pair;
union ib_mad;
struct ib_gma;
enum ib_queue_pair_type;
/** A GMA attribute handler */
struct ib_gma_handler {
@ -68,8 +64,8 @@ struct ib_gma {
extern int ib_gma_request ( struct ib_gma *gma, union ib_mad *mad,
struct ib_address_vector *av, int retry );
extern int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
enum ib_queue_pair_type type );
extern struct ib_gma * ib_create_gma ( struct ib_device *ibdev,
enum ib_queue_pair_type type );
extern void ib_destroy_gma ( struct ib_gma *gma );
#endif /* _GPXE_IB_GMA_H */

24
src/include/gpxe/ib_sma.h
View File

@ -1,24 +0,0 @@
#ifndef _GPXE_IB_SMA_H
#define _GPXE_IB_SMA_H
/** @file
*
* Infiniband Subnet Management Agent
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/infiniband.h>
#include <gpxe/ib_gma.h>
/** An Infiniband Subnet Management Agent */
struct ib_sma {
/** General management agent */
struct ib_gma gma;
};
extern int ib_create_sma ( struct ib_sma *sma, struct ib_device *ibdev );
extern void ib_destroy_sma ( struct ib_sma *sma );
#endif /* _GPXE_IB_SMA_H */

6
src/include/gpxe/infiniband.h
View File

@ -14,7 +14,6 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/device.h>
#include <gpxe/ib_packet.h>
#include <gpxe/ib_mad.h>
#include <gpxe/ib_gma.h>
/** Subnet management QPN */
#define IB_QPN_SMA 0
@ -46,6 +45,7 @@ struct ib_device;
struct ib_queue_pair;
struct ib_address_vector;
struct ib_completion_queue;
struct ib_gma;
/** An Infiniband Work Queue */
struct ib_work_queue {
@ -387,8 +387,10 @@ struct ib_device {
/** Outbound packet sequence number */
uint32_t psn;
/** Subnet management agent */
struct ib_gma *sma;
/** General management agent */
struct ib_gma gma;
struct ib_gma *gma;
/** Driver private data */
void *drv_priv;

33
src/net/infiniband.c
View File

@ -33,6 +33,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/ipoib.h>
#include <gpxe/process.h>
#include <gpxe/infiniband.h>
#include <gpxe/ib_gma.h>
/** @file
*
@ -510,6 +511,22 @@ int ib_open ( struct ib_device *ibdev ) {
return 0;
}
/* Create subnet management agent */
ibdev->sma = ib_create_gma ( ibdev, IB_QPT_SMA );
if ( ! ibdev->sma ) {
DBGC ( ibdev, "IBDEV %p could not create SMA\n", ibdev );
rc = -ENOMEM;
goto err_create_sma;
}
/* Create general management agent */
ibdev->gma = ib_create_gma ( ibdev, IB_QPT_GMA );
if ( ! ibdev->gma ) {
DBGC ( ibdev, "IBDEV %p could not create GMA\n", ibdev );
rc = -ENOMEM;
goto err_create_gma;
}
/* Open device */
if ( ( rc = ibdev->op->open ( ibdev ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %p could not open: %s\n",
@ -517,20 +534,15 @@ int ib_open ( struct ib_device *ibdev ) {
goto err_open;
}
/* Create general management agent */
if ( ( rc = ib_create_gma ( &ibdev->gma, ibdev, IB_QPT_GMA ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %p could not create GMA: %s\n",
ibdev, strerror ( rc ) );
goto err_create_gma;
}
assert ( ibdev->open_count == 1 );
return 0;
ib_destroy_gma ( &ibdev->gma );
err_create_gma:
ibdev->op->close ( ibdev );
err_open:
ib_destroy_gma ( ibdev->gma );
err_create_gma:
ib_destroy_gma ( ibdev->sma );
err_create_sma:
assert ( ibdev->open_count == 1 );
ibdev->open_count = 0;
return rc;
@ -548,7 +560,8 @@ 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->gma );
ib_destroy_gma ( ibdev->sma );
ibdev->op->close ( ibdev );
}
}

278
src/net/infiniband/ib_gma.c
View File

@ -68,12 +68,264 @@ struct ib_mad_request {
*/
#define IB_GMA_NUM_CQES 8
/** GMA TID magic signature */
/** TID magic signature */
#define IB_GMA_TID_MAGIC ( ( 'g' << 24 ) | ( 'P' << 16 ) | ( 'X' << 8 ) | 'E' )
/** TID to use for next MAD request */
static unsigned int next_request_tid;
/*****************************************************************************
*
* Subnet management MAD handlers
*
*****************************************************************************
*/
/**
* Get node information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
return 0;
}
/**
* Get node description
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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 );
return 0;
}
/**
* Get GUID information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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] ) );
return 0;
}
/**
* Get port information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
port_info->link_width_supported = ibdev->link_width;
port_info->link_width_active = ibdev->link_width;
port_info->link_speed_supported__port_state =
( ( ibdev->link_speed << 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 << 4 ) | ibdev->link_speed );
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;
return 0;
}
/**
* Set port information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
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 );
ibdev->sm_sl = ( port_info->neighbour_mtu__mastersm_sl & 0xf );
if ( ( rc = ib_set_port_info ( ibdev, port_info ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %p could not set port information: %s\n",
ibdev, 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 rc Return status code
*/
static int 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;
memset ( pkey_table, 0, sizeof ( *pkey_table ) );
pkey_table->pkey[0] = htons ( ibdev->pkey );
return 0;
}
/**
* Set partition key table
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
ibdev->pkey = ntohs ( pkey_table->pkey[0] );
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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE ),
.handle = ib_sma_set_pkey_table,
},
};
/*****************************************************************************
*
* General management agent
*
*****************************************************************************
*/
/**
* Call attribute handler
*
@ -341,18 +593,19 @@ int ib_gma_request ( struct ib_gma *gma, union ib_mad *mad,
/**
* Create GMA
*
* @v gma General management agent
* @v ibdev Infiniband device
* @v type Queue pair type
* @ret rc Return status code
* @ret gma General management agent, or NULL
*/
int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
enum ib_queue_pair_type type ) {
struct ib_gma * ib_create_gma ( struct ib_device *ibdev,
enum ib_queue_pair_type type ) {
struct ib_gma *gma;
unsigned long qkey;
int rc;
/* Initialise fields */
memset ( gma, 0, sizeof ( *gma ) );
/* Allocate and initialise fields */
gma = zalloc ( sizeof ( *gma ) );
if ( ! gma )
goto err_alloc;
gma->ibdev = ibdev;
INIT_LIST_HEAD ( &gma->requests );
@ -362,7 +615,6 @@ int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
if ( ! gma->cq ) {
DBGC ( gma, "GMA %p could not allocate completion queue\n",
gma );
rc = -ENOMEM;
goto err_create_cq;
}
@ -372,7 +624,6 @@ int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
IB_GMA_NUM_RECV_WQES, gma->cq, qkey );
if ( ! gma->qp ) {
DBGC ( gma, "GMA %p could not allocate queue pair\n", gma );
rc = -ENOMEM;
goto err_create_qp;
}
ib_qp_set_ownerdata ( gma->qp, gma );
@ -381,13 +632,15 @@ int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
/* Fill receive ring */
ib_refill_recv ( ibdev, gma->qp );
return 0;
return gma;
ib_destroy_qp ( ibdev, gma->qp );
err_create_qp:
ib_destroy_cq ( ibdev, gma->cq );
err_create_cq:
return rc;
free ( gma );
err_alloc:
return NULL;
}
/**
@ -409,4 +662,5 @@ void ib_destroy_gma ( struct ib_gma *gma ) {
ib_destroy_qp ( ibdev, gma->qp );
ib_destroy_cq ( ibdev, gma->cq );
free ( gma );
}

4
src/net/infiniband/ib_mcast.c
View File

@ -84,7 +84,7 @@ static int ib_mc_member_request ( struct ib_gma *gma, struct ib_gid *gid,
*/
int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp,
struct ib_gid *gid ) {
struct ib_gma *gma = &ibdev->gma;
struct ib_gma *gma = ibdev->gma;
int rc;
DBGC ( gma, "GMA %p QPN %lx joining %08x:%08x:%08x:%08x\n",
@ -120,7 +120,7 @@ int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp,
*/
void ib_mcast_leave ( struct ib_device *ibdev, struct ib_queue_pair *qp,
struct ib_gid *gid ) {
struct ib_gma *gma = &ibdev->gma;
struct ib_gma *gma = ibdev->gma;
DBGC ( gma, "GMA %p QPN %lx leaving %08x:%08x:%08x:%08x\n",
gma, qp->qpn, ntohl ( gid->u.dwords[0] ),

2
src/net/infiniband/ib_pathrec.c
View File

@ -98,7 +98,7 @@ ib_find_path_cache_entry ( struct ib_device *ibdev, struct ib_gid *dgid ) {
*/
int ib_resolve_path ( struct ib_device *ibdev,
struct ib_address_vector *av ) {
struct ib_gma *gma = &ibdev->gma;
struct ib_gma *gma = ibdev->gma;
struct ib_gid *gid = &av->gid;
struct ib_cached_path_record *cached;
union ib_mad mad;

319
src/net/infiniband/ib_sma.c
View File

@ -1,319 +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 <stdio.h>
#include <unistd.h>
#include <byteswap.h>
#include <gpxe/infiniband.h>
#include <gpxe/ib_gma.h>
#include <gpxe/ib_sma.h>
/**
* @file
*
* Infiniband Subnet Management Agent
*
*/
/**
* Get node information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
return 0;
}
/**
* Get node description
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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 );
return 0;
}
/**
* Get GUID information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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] ) );
return 0;
}
/**
* Get port information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
port_info->link_width_supported = ibdev->link_width;
port_info->link_width_active = ibdev->link_width;
port_info->link_speed_supported__port_state =
( ( ibdev->link_speed << 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 << 4 ) | ibdev->link_speed );
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;
return 0;
}
/**
* Set port information
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
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 );
ibdev->sm_sl = ( port_info->neighbour_mtu__mastersm_sl & 0xf );
if ( ( rc = ib_set_port_info ( ibdev, port_info ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %p could not set port information: %s\n",
ibdev, 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 rc Return status code
*/
static int 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;
memset ( pkey_table, 0, sizeof ( *pkey_table ) );
pkey_table->pkey[0] = htons ( ibdev->pkey );
return 0;
}
/**
* Set partition key table
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*/
static int 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;
ibdev->pkey = ntohs ( pkey_table->pkey[0] );
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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.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,
.resp_method = IB_MGMT_METHOD_GET_RESP,
.attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE ),
.handle = ib_sma_set_pkey_table,
},
};
/**
* Create SMA
*
* @v sma Subnet management agent
* @v ibdev Infiniband device
* @v op Subnet management operations
* @ret rc Return status code
*/
int ib_create_sma ( struct ib_sma *sma, struct ib_device *ibdev ) {
int rc;
/* Initialise GMA */
if ( ( rc = ib_create_gma ( &sma->gma, ibdev, IB_QPT_SMA ) ) != 0 ) {
DBGC ( sma, "SMA %p could not create GMA: %s\n",
sma, strerror ( rc ) );
goto err_create_gma;
}
/* If we don't get QP0, we can't function */
if ( sma->gma.qp->qpn != IB_QPN_SMA ) {
DBGC ( sma, "SMA %p on QPN %lx, needs to be on QPN 0\n",
sma, sma->gma.qp->qpn );
rc = -ENOTSUP;
goto err_not_qp0;
}
return 0;
err_not_qp0:
ib_destroy_gma ( &sma->gma );
err_create_gma:
return rc;
}
/**
* Destroy SMA
*
* @v sma Subnet management agent
*/
void ib_destroy_sma ( struct ib_sma *sma ) {
ib_destroy_gma ( &sma->gma );
}