mirror of
https://github.com/xcat2/xNBA.git
synced 2025-05-17 17:02:03 +00:00
[infiniband] Add a standalone subnet management agent
This generic SMA code can be used for any cards that do not provide firmware-based embedded SMAs.
This commit is contained in:
Michael Brown
parent
9a35830d1f
commit
c0ec00f47f
541
src/drivers/infiniband/ib_sma.c
Normal file
541
src/drivers/infiniband/ib_sma.c
Normal file
@ -0,0 +1,541 @@
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#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/process.h>
|
||||
#include <gpxe/ib_sma.h>
|
||||
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* Infiniband Subnet Management Agent
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* Get node information
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v get Attribute to get
|
||||
*/
|
||||
static void ib_sma_get_node_info ( struct ib_sma *sma,
|
||||
union ib_smp_data *get ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
struct ib_node_info *node_info = &get->node_info;
|
||||
struct ib_device *tmp;
|
||||
|
||||
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;
|
||||
/* Search for IB devices with the same physical device to
|
||||
* identify port count and a suitable Node GUID.
|
||||
*/
|
||||
for_each_ibdev ( tmp ) {
|
||||
if ( tmp->dev != ibdev->dev )
|
||||
continue;
|
||||
if ( node_info->num_ports == 0 ) {
|
||||
memcpy ( node_info->sys_guid, &tmp->gid.u.half[1],
|
||||
sizeof ( node_info->sys_guid ) );
|
||||
memcpy ( node_info->node_guid, &tmp->gid.u.half[1],
|
||||
sizeof ( node_info->node_guid ) );
|
||||
}
|
||||
node_info->num_ports++;
|
||||
}
|
||||
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;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get node description
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v get Attribute to get
|
||||
*/
|
||||
static void ib_sma_get_node_desc ( struct ib_sma *sma,
|
||||
union ib_smp_data *get ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
struct ib_node_desc *node_desc = &get->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 );
|
||||
}
|
||||
|
||||
/**
|
||||
* Get GUID information
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v get Attribute to get
|
||||
*/
|
||||
static void ib_sma_get_guid_info ( struct ib_sma *sma,
|
||||
union ib_smp_data *get ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
struct ib_guid_info *guid_info = &get->guid_info;
|
||||
|
||||
memset ( guid_info, 0, sizeof ( *guid_info ) );
|
||||
memcpy ( guid_info->guid[0], &ibdev->gid.u.half[1],
|
||||
sizeof ( guid_info->guid[0] ) );
|
||||
}
|
||||
|
||||
/**
|
||||
* Get port information
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v get Attribute to get
|
||||
*/
|
||||
static void ib_sma_get_port_info ( struct ib_sma *sma,
|
||||
union ib_smp_data *get ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
struct ib_port_info *port_info = &get->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;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set port information
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v set Attribute to set
|
||||
* @ret rc Return status code
|
||||
*/
|
||||
static int ib_sma_set_port_info ( struct ib_sma *sma,
|
||||
const union ib_smp_data *set ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
const struct ib_port_info *port_info = &set->port_info;
|
||||
|
||||
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 ( ! sma->op->set_port_info ) {
|
||||
/* Not an error; we just ignore all other settings */
|
||||
return 0;
|
||||
}
|
||||
|
||||
return sma->op->set_port_info ( ibdev, port_info );
|
||||
}
|
||||
|
||||
/**
|
||||
* Get partition key table
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v get Attribute to get
|
||||
*/
|
||||
static void ib_sma_get_pkey_table ( struct ib_sma *sma,
|
||||
union ib_smp_data *get ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
struct ib_pkey_table *pkey_table = &get->pkey_table;
|
||||
|
||||
memset ( pkey_table, 0, sizeof ( *pkey_table ) );
|
||||
pkey_table->pkey[0] = htons ( ibdev->pkey );
|
||||
}
|
||||
|
||||
/**
|
||||
* Set partition key table
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v set Attribute to set
|
||||
*/
|
||||
static int ib_sma_set_pkey_table ( struct ib_sma *sma,
|
||||
const union ib_smp_data *get ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
const struct ib_pkey_table *pkey_table = &get->pkey_table;
|
||||
|
||||
ibdev->pkey = ntohs ( pkey_table->pkey[0] );
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** An attribute handler */
|
||||
struct ib_sma_handler {
|
||||
/** Attribute (in network byte order) */
|
||||
uint16_t attr_id;
|
||||
/** Get attribute
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v get Attribute to get
|
||||
* @ret rc Return status code
|
||||
*/
|
||||
void ( * get ) ( struct ib_sma *sma, union ib_smp_data *get );
|
||||
/** Set attribute
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v set Attribute to set
|
||||
* @ret rc Return status code
|
||||
*/
|
||||
int ( * set ) ( struct ib_sma *sma, const union ib_smp_data *set );
|
||||
};
|
||||
|
||||
/** List of attribute handlers */
|
||||
static struct ib_sma_handler ib_sma_handlers[] = {
|
||||
{ htons ( IB_SMP_ATTR_NODE_DESC ),
|
||||
ib_sma_get_node_desc, NULL },
|
||||
{ htons ( IB_SMP_ATTR_NODE_INFO ),
|
||||
ib_sma_get_node_info, NULL },
|
||||
{ htons ( IB_SMP_ATTR_GUID_INFO ),
|
||||
ib_sma_get_guid_info, NULL },
|
||||
{ htons ( IB_SMP_ATTR_PORT_INFO ),
|
||||
ib_sma_get_port_info, ib_sma_set_port_info },
|
||||
{ htons ( IB_SMP_ATTR_PKEY_TABLE ),
|
||||
ib_sma_get_pkey_table, ib_sma_set_pkey_table },
|
||||
};
|
||||
|
||||
/**
|
||||
* Identify attribute handler
|
||||
*
|
||||
* @v attr_id Attribute ID (in network byte order)
|
||||
* @ret handler Attribute handler (or NULL)
|
||||
*/
|
||||
static struct ib_sma_handler * ib_sma_handler ( uint16_t attr_id ) {
|
||||
struct ib_sma_handler *handler;
|
||||
unsigned int i;
|
||||
|
||||
for ( i = 0 ; i < ( sizeof ( ib_sma_handlers ) /
|
||||
sizeof ( ib_sma_handlers[0] ) ) ; i++ ) {
|
||||
handler = &ib_sma_handlers[i];
|
||||
if ( handler->attr_id == attr_id )
|
||||
return handler;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Respond to management datagram
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
* @v mad Management datagram
|
||||
* @ret rc Return status code
|
||||
*/
|
||||
static int ib_sma_mad ( struct ib_sma *sma, union ib_mad *mad ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
struct ib_mad_hdr *hdr = &mad->hdr;
|
||||
struct ib_mad_smp *smp = &mad->smp;
|
||||
struct ib_sma_handler *handler = NULL;
|
||||
int rc;
|
||||
|
||||
DBGC ( sma, "SMA %p received SMP with bv=%02x mc=%02x cv=%02x "
|
||||
"meth=%02x attr=%04x mod=%08lx\n", sma, hdr->base_version,
|
||||
hdr->mgmt_class, hdr->class_version, hdr->method,
|
||||
ntohs ( hdr->attr_id ), ntohl ( hdr->attr_mod ) );
|
||||
DBGC2_HDA ( sma, 0, mad, sizeof ( *mad ) );
|
||||
|
||||
/* Sanity checks */
|
||||
if ( hdr->base_version != IB_MGMT_BASE_VERSION ) {
|
||||
DBGC ( sma, "SMA %p unsupported base version %x\n",
|
||||
sma, hdr->base_version );
|
||||
return -ENOTSUP;
|
||||
}
|
||||
if ( ( hdr->mgmt_class != IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE ) &&
|
||||
( hdr->mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED ) ) {
|
||||
DBGC ( sma, "SMA %p unsupported management class %x\n",
|
||||
sma, hdr->mgmt_class );
|
||||
return -ENOTSUP;
|
||||
}
|
||||
if ( hdr->class_version != IB_SMP_CLASS_VERSION ) {
|
||||
DBGC ( sma, "SMA %p unsupported class version %x\n",
|
||||
sma, hdr->class_version );
|
||||
return -ENOTSUP;
|
||||
}
|
||||
if ( ( hdr->method != IB_MGMT_METHOD_GET ) &&
|
||||
( hdr->method != IB_MGMT_METHOD_SET ) ) {
|
||||
DBGC ( sma, "SMA %p unsupported method %x\n",
|
||||
sma, hdr->method );
|
||||
return -ENOTSUP;
|
||||
}
|
||||
|
||||
/* Identify handler */
|
||||
if ( ! ( handler = ib_sma_handler ( hdr->attr_id ) ) ) {
|
||||
DBGC ( sma, "SMA %p unsupported attribute %x\n",
|
||||
sma, ntohs ( hdr->attr_id ) );
|
||||
hdr->status = htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
|
||||
goto respond_without_data;
|
||||
}
|
||||
|
||||
/* Set attribute (if applicable) */
|
||||
if ( hdr->method != IB_MGMT_METHOD_SET ) {
|
||||
hdr->status = htons ( IB_MGMT_STATUS_OK );
|
||||
goto respond;
|
||||
}
|
||||
if ( ! handler->set ) {
|
||||
DBGC ( sma, "SMA %p attribute %x is unsettable\n",
|
||||
sma, ntohs ( hdr->attr_id ) );
|
||||
hdr->status = htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
|
||||
goto respond;
|
||||
}
|
||||
if ( ( rc = handler->set ( sma, &smp->smp_data ) ) != 0 ) {
|
||||
DBGC ( sma, "SMA %p could not set attribute %x: %s\n",
|
||||
sma, ntohs ( hdr->attr_id ), strerror ( rc ) );
|
||||
hdr->status = htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
|
||||
goto respond;
|
||||
}
|
||||
|
||||
hdr->status = htons ( IB_MGMT_STATUS_OK );
|
||||
|
||||
respond:
|
||||
/* Get attribute */
|
||||
handler->get ( sma, &smp->smp_data );
|
||||
|
||||
respond_without_data:
|
||||
|
||||
/* Set method to "Get Response" */
|
||||
hdr->method = IB_MGMT_METHOD_GET_RESP;
|
||||
|
||||
/* 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 );
|
||||
smp->return_path.hops[0] = ibdev->port;
|
||||
}
|
||||
|
||||
DBGC ( sma, "SMA %p responding with status=%04x\n",
|
||||
sma, ntohs ( hdr->status ) );
|
||||
DBGC2_HDA ( sma, 0, mad, sizeof ( *mad ) );
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Refill SMA receive ring
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
*/
|
||||
static void ib_sma_refill_recv ( struct ib_sma *sma ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
struct io_buffer *iobuf;
|
||||
int rc;
|
||||
|
||||
while ( sma->qp->recv.fill < IB_SMA_NUM_RECV_WQES ) {
|
||||
|
||||
/* Allocate I/O buffer */
|
||||
iobuf = alloc_iob ( IB_SMA_PAYLOAD_LEN );
|
||||
if ( ! iobuf ) {
|
||||
/* Non-fatal; we will refill on next attempt */
|
||||
return;
|
||||
}
|
||||
|
||||
/* Post I/O buffer */
|
||||
if ( ( rc = ib_post_recv ( ibdev, sma->qp, iobuf ) ) != 0 ) {
|
||||
DBGC ( sma, "SMA %p could not refill: %s\n",
|
||||
sma, strerror ( rc ) );
|
||||
free_iob ( iobuf );
|
||||
/* Give up */
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Complete SMA send
|
||||
*
|
||||
*
|
||||
* @v ibdev Infiniband device
|
||||
* @v qp Queue pair
|
||||
* @v iobuf I/O buffer
|
||||
* @v rc Completion status code
|
||||
*/
|
||||
static void ib_sma_complete_send ( struct ib_device *ibdev __unused,
|
||||
struct ib_queue_pair *qp,
|
||||
struct io_buffer *iobuf, int rc ) {
|
||||
struct ib_sma *sma = ib_qp_get_ownerdata ( qp );
|
||||
|
||||
if ( rc != 0 ) {
|
||||
DBGC ( sma, "SMA %p send completion error: %s\n",
|
||||
sma, strerror ( rc ) );
|
||||
}
|
||||
free_iob ( iobuf );
|
||||
}
|
||||
|
||||
/**
|
||||
* Complete SMA receive
|
||||
*
|
||||
*
|
||||
* @v ibdev Infiniband device
|
||||
* @v qp Queue pair
|
||||
* @v av Address vector
|
||||
* @v iobuf I/O buffer
|
||||
* @v rc Completion status code
|
||||
*/
|
||||
static void ib_sma_complete_recv ( struct ib_device *ibdev,
|
||||
struct ib_queue_pair *qp,
|
||||
struct ib_address_vector *av,
|
||||
struct io_buffer *iobuf, int rc ) {
|
||||
struct ib_sma *sma = ib_qp_get_ownerdata ( qp );
|
||||
union ib_mad *mad;
|
||||
|
||||
/* Ignore errors */
|
||||
if ( rc != 0 ) {
|
||||
DBGC ( sma, "SMA %p RX error: %s\n", sma, strerror ( rc ) );
|
||||
goto err;
|
||||
}
|
||||
|
||||
/* Sanity check */
|
||||
if ( iob_len ( iobuf ) != sizeof ( *mad ) ) {
|
||||
DBGC ( sma, "SMA %p RX bad size (%zd bytes)\n",
|
||||
sma, iob_len ( iobuf ) );
|
||||
goto err;
|
||||
}
|
||||
mad = iobuf->data;
|
||||
|
||||
/* Construct MAD response */
|
||||
if ( ( rc = ib_sma_mad ( sma, mad ) ) != 0 ) {
|
||||
DBGC ( sma, "SMA %p could not construct MAD response: %s\n",
|
||||
sma, strerror ( rc ) );
|
||||
goto err;
|
||||
}
|
||||
|
||||
/* Send MAD response */
|
||||
if ( ( rc = ib_post_send ( ibdev, qp, av, iobuf ) ) != 0 ) {
|
||||
DBGC ( sma, "SMA %p could not send MAD response: %s\n",
|
||||
sma, strerror ( rc ) );
|
||||
goto err;
|
||||
}
|
||||
|
||||
return;
|
||||
|
||||
err:
|
||||
free_iob ( iobuf );
|
||||
}
|
||||
|
||||
/** SMA completion operations */
|
||||
static struct ib_completion_queue_operations ib_sma_completion_ops = {
|
||||
.complete_send = ib_sma_complete_send,
|
||||
.complete_recv = ib_sma_complete_recv,
|
||||
};
|
||||
|
||||
/**
|
||||
* Poll SMA
|
||||
*
|
||||
* @v process Process
|
||||
*/
|
||||
static void ib_sma_step ( struct process *process ) {
|
||||
struct ib_sma *sma =
|
||||
container_of ( process, struct ib_sma, poll );
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
|
||||
/* Poll the kernel completion queue */
|
||||
ib_poll_cq ( ibdev, sma->cq );
|
||||
|
||||
/* Refill the receive ring */
|
||||
ib_sma_refill_recv ( sma );
|
||||
}
|
||||
|
||||
/**
|
||||
* 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,
|
||||
struct ib_sma_operations *op ) {
|
||||
int rc;
|
||||
|
||||
/* Initialise fields */
|
||||
memset ( sma, 0, sizeof ( *sma ) );
|
||||
sma->ibdev = ibdev;
|
||||
sma->op = op;
|
||||
process_init ( &sma->poll, ib_sma_step, &ibdev->refcnt );
|
||||
|
||||
/* Create completion queue */
|
||||
sma->cq = ib_create_cq ( ibdev, IB_SMA_NUM_CQES,
|
||||
&ib_sma_completion_ops );
|
||||
if ( ! sma->cq ) {
|
||||
rc = -ENOMEM;
|
||||
goto err_create_cq;
|
||||
}
|
||||
|
||||
/* Create queue pair */
|
||||
sma->qp = ib_create_qp ( ibdev, IB_SMA_NUM_SEND_WQES, sma->cq,
|
||||
IB_SMA_NUM_RECV_WQES, sma->cq, 0 );
|
||||
if ( ! sma->qp ) {
|
||||
rc = -ENOMEM;
|
||||
goto err_create_qp;
|
||||
}
|
||||
ib_qp_set_ownerdata ( sma->qp, sma );
|
||||
|
||||
/* If we don't get QP0, we can't function */
|
||||
if ( sma->qp->qpn != IB_QPN_SMP ) {
|
||||
DBGC ( sma, "SMA %p on QPN %lx, needs to be on QPN 0\n",
|
||||
sma, sma->qp->qpn );
|
||||
rc = -ENOTSUP;
|
||||
goto err_not_qp0;
|
||||
}
|
||||
|
||||
/* Fill receive ring */
|
||||
ib_sma_refill_recv ( sma );
|
||||
return 0;
|
||||
|
||||
err_not_qp0:
|
||||
ib_destroy_qp ( ibdev, sma->qp );
|
||||
err_create_qp:
|
||||
ib_destroy_cq ( ibdev, sma->cq );
|
||||
err_create_cq:
|
||||
process_del ( &sma->poll );
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* Destroy SMA
|
||||
*
|
||||
* @v sma Subnet management agent
|
||||
*/
|
||||
void ib_destroy_sma ( struct ib_sma *sma ) {
|
||||
struct ib_device *ibdev = sma->ibdev;
|
||||
|
||||
ib_destroy_qp ( ibdev, sma->qp );
|
||||
ib_destroy_cq ( ibdev, sma->cq );
|
||||
process_del ( &sma->poll );
|
||||
}
|
||||
@ -135,6 +135,7 @@
|
||||
#define ERRFILE_netdev_settings ( ERRFILE_NET | 0x00140000 )
|
||||
#define ERRFILE_dhcppkt ( ERRFILE_NET | 0x00150000 )
|
||||
#define ERRFILE_slam ( ERRFILE_NET | 0x00160000 )
|
||||
#define ERRFILE_ib_sma ( ERRFILE_NET | 0x00170000 )
|
||||
|
||||
#define ERRFILE_image ( ERRFILE_IMAGE | 0x00000000 )
|
||||
#define ERRFILE_elf ( ERRFILE_IMAGE | 0x00010000 )
|
||||
|
||||
63
src/include/gpxe/ib_sma.h
Normal file
63
src/include/gpxe/ib_sma.h
Normal file
@ -0,0 +1,63 @@
|
||||
#ifndef _GPXE_IB_SMA_H
|
||||
#define _GPXE_IB_SMA_H
|
||||
|
||||
/** @file
|
||||
*
|
||||
* Infiniband Subnet Management Agent
|
||||
*
|
||||
*/
|
||||
|
||||
#include <gpxe/infiniband.h>
|
||||
#include <gpxe/process.h>
|
||||
|
||||
/** Infiniband Subnet Management Agent operations */
|
||||
struct ib_sma_operations {
|
||||
/** Set port information
|
||||
*
|
||||
* @v ibdev Infiniband device
|
||||
* @v port_info New port information
|
||||
*/
|
||||
int ( * set_port_info ) ( struct ib_device *ibdev,
|
||||
const struct ib_port_info *port_info );
|
||||
};
|
||||
|
||||
/** An Infiniband Subnet Management Agent */
|
||||
struct ib_sma {
|
||||
/** Infiniband device */
|
||||
struct ib_device *ibdev;
|
||||
/** SMA operations */
|
||||
struct ib_sma_operations *op;
|
||||
/** SMA completion queue */
|
||||
struct ib_completion_queue *cq;
|
||||
/** SMA queue pair */
|
||||
struct ib_queue_pair *qp;
|
||||
/** Poll process */
|
||||
struct process poll;
|
||||
};
|
||||
|
||||
/** SMA payload size allocated for received packets */
|
||||
#define IB_SMA_PAYLOAD_LEN 2048
|
||||
|
||||
/** SMA number of send WQEs
|
||||
*
|
||||
* This is a policy decision.
|
||||
*/
|
||||
#define IB_SMA_NUM_SEND_WQES 4
|
||||
|
||||
/** SMA number of receive WQEs
|
||||
*
|
||||
* This is a policy decision.
|
||||
*/
|
||||
#define IB_SMA_NUM_RECV_WQES 2
|
||||
|
||||
/** SMA number of completion queue entries
|
||||
*
|
||||
* This is a policy decision
|
||||
*/
|
||||
#define IB_SMA_NUM_CQES 8
|
||||
|
||||
extern int ib_create_sma ( struct ib_sma *sma, struct ib_device *ibdev,
|
||||
struct ib_sma_operations *op );
|
||||
extern void ib_destroy_sma ( struct ib_sma *sma );
|
||||
|
||||
#endif /* _GPXE_IB_SMA_H */
|
||||
Loading…
x
Reference in New Issue
Block a user