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Use pkey table access to determine broadcast GID directly.

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This commit is contained in:
Michael Brown 2007-09-17 06:35:21 +01:00
parent f6f1f2b7bb
commit e05a8cd4de
2 changed files with 73 additions and 10 deletions
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75
src/drivers/net/mlx_ipoib/mt25218.c
View File

@ -1206,21 +1206,69 @@ static int arbel_get_guid_info ( struct arbel *arbel,
return 0;
}
static int arbel_get_port_gid ( struct arbel *arbel, struct ib_gid *gid ) {
struct ib_mad_port_info port_info;
struct ib_mad_guid_info guid_info;
static int arbel_get_pkey_table ( struct arbel *arbel,
struct ib_mad_pkey_table *pkey_table ) {
union arbelprm_mad mad;
struct ib_mad_hdr *hdr = &mad.mad.mad_hdr;
int rc;
if ( ( rc = arbel_get_port_info ( arbel, &port_info ) ) != 0 )
memset ( &mad, 0, sizeof ( mad ) );
hdr->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
hdr->class_version = 1;
hdr->method = IB_MGMT_METHOD_GET;
hdr->attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE );
if ( ( rc = arbel_mad_ifc ( arbel, &mad ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not get pkey table: %s\n",
arbel, strerror ( rc ) );
return rc;
if ( ( rc = arbel_get_guid_info ( arbel, &guid_info ) ) != 0 )
return rc;
memcpy ( &gid->bytes[0], port_info.gid_prefix, 8 );
memcpy ( &gid->bytes[8], guid_info.gid_local, 8 );
}
memcpy ( pkey_table, &mad.mad.pkey_table, sizeof ( *pkey_table ) );
return 0;
}
static int arbel_get_port_gid ( struct arbel *arbel,
struct ib_gid *port_gid ) {
union {
/* This union exists just to save stack space */
struct ib_mad_port_info port_info;
struct ib_mad_guid_info guid_info;
} u;
int rc;
/* Port info gives us the first half of the port GID */
if ( ( rc = arbel_get_port_info ( arbel, &u.port_info ) ) != 0 )
return rc;
memcpy ( &port_gid->bytes[0], u.port_info.gid_prefix, 8 );
/* GUID info gives us the second half of the port GID */
if ( ( rc = arbel_get_guid_info ( arbel, &u.guid_info ) ) != 0 )
return rc;
memcpy ( &port_gid->bytes[8], u.guid_info.gid_local, 8 );
return 0;
}
static int arbel_get_broadcast_gid ( struct arbel *arbel,
struct ib_gid *broadcast_gid ) {
static const struct ib_gid ipv4_broadcast_gid = {
{ 0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff }
};
struct ib_mad_pkey_table pkey_table;
int rc;
/* Start with the IPv4 broadcast GID */
memcpy ( broadcast_gid, &ipv4_broadcast_gid,
sizeof ( *broadcast_gid ) );
/* Add partition key */
if ( ( rc = arbel_get_pkey_table ( arbel, &pkey_table ) ) != 0 )
return rc;
memcpy ( &broadcast_gid->bytes[4], &pkey_table.pkey[0][0],
sizeof ( pkey_table.pkey[0][0] ) );
return 0;
}
/**
* Probe PCI device
@ -1282,6 +1330,14 @@ static int arbel_probe ( struct pci_device *pci,
goto err_get_port_gid;
}
/* Get broadcast GID */
if ( ( rc = arbel_get_broadcast_gid ( arbel,
&ibdev->broadcast_gid ) ) != 0 ){
DBGC ( arbel, "Arbel %p could not determine broadcast GID: "
"%s\n", arbel, strerror ( rc ) );
goto err_get_broadcast_gid;
}
struct ud_av_st *bcast_av = ib_data.bcast_av;
struct arbelprm_ud_address_vector *bav =
( struct arbelprm_ud_address_vector * ) &bcast_av->av;
@ -1294,8 +1350,6 @@ static int arbel_probe ( struct pci_device *pci,
av->gid_present = 1;
memcpy ( &av->gid, ( ( void * ) bav ) + 16, 16 );
memcpy ( &ibdev->broadcast_gid, &ib_data.bcast_gid, 16 );
/* Add IPoIB device */
if ( ( rc = ipoib_probe ( ibdev ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not add IPoIB device: %s\n",
@ -1306,6 +1360,7 @@ static int arbel_probe ( struct pci_device *pci,
return 0;
err_ipoib_probe:
err_get_broadcast_gid:
err_get_port_gid:
err_query_dev_lim:
ib_driver_close ( 0 );

8
src/include/gpxe/infiniband.h
View File

@ -468,11 +468,19 @@ struct ib_mad_port_info {
uint8_t link_speed_enabled__link_speed_active;
} __attribute__ (( packed ));
struct ib_mad_pkey_table {
struct ib_mad_hdr mad_hdr;
uint32_t mkey[2];
uint32_t reserved[8];
uint16_t pkey[16][2];
} __attribute__ (( packed ));
union ib_mad {
struct ib_mad_hdr mad_hdr;
struct ib_mad_data data;
struct ib_mad_guid_info guid_info;
struct ib_mad_port_info port_info;
struct ib_mad_pkey_table pkey_table;
} __attribute__ (( packed ));
#endif /* _GPXE_INFINIBAND_H */