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Read port GID directly using MAD IFC.

This commit is contained in:
Michael Brown 2007-09-17 02:54:15 +01:00
parent 3c6a6bdc5d
commit 67836430e6
3 changed files with 242 additions and 15 deletions
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7
src/drivers/net/mlx_ipoib/arbel.h
View File

@ -33,6 +33,7 @@
#define ARBEL_HCR_INIT2RTR_QPEE 0x001a
#define ARBEL_HCR_RTR2RTS_QPEE 0x001b
#define ARBEL_HCR_2RST_QPEE 0x0021
#define ARBEL_HCR_MAD_IFC 0x0024
#define ARBEL_HCR_READ_MGM 0x0025
#define ARBEL_HCR_WRITE_MGM 0x0026
#define ARBEL_HCR_MGID_HASH 0x0027
@ -67,6 +68,7 @@ struct MLX_DECLARE_STRUCT ( arbelprm_completion_with_error );
struct MLX_DECLARE_STRUCT ( arbelprm_cq_arm_db_record );
struct MLX_DECLARE_STRUCT ( arbelprm_cq_ci_db_record );
struct MLX_DECLARE_STRUCT ( arbelprm_hca_command_register );
struct MLX_DECLARE_STRUCT ( arbelprm_mad_ifc );
struct MLX_DECLARE_STRUCT ( arbelprm_mgm_entry );
struct MLX_DECLARE_STRUCT ( arbelprm_mgm_hash );
struct MLX_DECLARE_STRUCT ( arbelprm_qp_db_record );
@ -126,6 +128,11 @@ union arbelprm_doorbell_register {
uint32_t dword[2];
} __attribute__ (( packed ));
union arbelprm_mad {
struct arbelprm_mad_ifc ifc;
union ib_mad mad;
} __attribute__ (( packed ));
/*
* gPXE-specific definitions
*

135
src/drivers/net/mlx_ipoib/mt25218.c
View File

@ -549,6 +549,15 @@ arbel_cmd_2rst_qpee ( struct arbel *arbel, unsigned long qpn ) {
0x03, NULL, qpn, NULL );
}
static inline int
arbel_cmd_mad_ifc ( struct arbel *arbel, union arbelprm_mad *mad ) {
return arbel_cmd ( arbel,
ARBEL_HCR_INOUT_CMD ( ARBEL_HCR_MAD_IFC,
1, sizeof ( *mad ),
1, sizeof ( *mad ) ),
0x03, mad, PXE_IB_PORT, mad );
}
static inline int
arbel_cmd_read_mgm ( struct arbel *arbel, unsigned int index,
struct arbelprm_mgm_entry *mgm ) {
@ -1233,6 +1242,15 @@ static int arbel_complete ( struct ib_device *ibdev,
return rc;
}
/**
* Drain event queue
*
* @v arbel Arbel device
*/
static void arbel_drain_eq ( struct arbel *arbel ) {
#warning "drain the event queue"
}
/**
* Poll completion queue
*
@ -1252,6 +1270,9 @@ static void arbel_poll_cq ( struct ib_device *ibdev,
unsigned int cqe_idx_mask;
int rc;
/* Drain the event queue */
arbel_drain_eq ( arbel );
while ( 1 ) {
/* Look for completion entry */
cqe_idx_mask = ( cq->num_cqes - 1 );
@ -1377,8 +1398,6 @@ static void arbel_mcast_detach ( struct ib_device *ibdev,
}
}
/** Arbel Infiniband operations */
static struct ib_device_operations arbel_ib_operations = {
.create_cq = arbel_create_cq,
@ -1392,20 +1411,83 @@ static struct ib_device_operations arbel_ib_operations = {
.mcast_detach = arbel_mcast_detach,
};
/**
* Remove PCI device
*
* @v pci PCI device
*/
static void arbel_remove ( struct pci_device *pci ) {
struct net_device *netdev = pci_get_drvdata ( pci );
unregister_netdev ( netdev );
ib_driver_close ( 0 );
netdev_nullify ( netdev );
netdev_put ( netdev );
static int arbel_mad_ifc ( struct arbel *arbel,
union arbelprm_mad *mad ) {
struct ib_mad_hdr *hdr = &mad->mad.mad_hdr;
int rc;
hdr->base_version = IB_MGMT_BASE_VERSION;
if ( ( rc = arbel_cmd_mad_ifc ( arbel, mad ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not issue MAD IFC: %s\n",
arbel, strerror ( rc ) );
return rc;
}
if ( hdr->status != 0 ) {
DBGC ( arbel, "Arbel %p MAD IFC status %04x\n",
arbel, ntohs ( hdr->status ) );
return -EIO;
}
return 0;
}
static int arbel_get_port_info ( struct arbel *arbel,
struct ib_mad_port_info *port_info ) {
union arbelprm_mad mad;
struct ib_mad_hdr *hdr = &mad.mad.mad_hdr;
int rc;
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_PORT_INFO );
hdr->attr_mod = htonl ( PXE_IB_PORT );
if ( ( rc = arbel_mad_ifc ( arbel, &mad ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not get port info: %s\n",
arbel, strerror ( rc ) );
return rc;
}
memcpy ( port_info, &mad.mad.port_info, sizeof ( *port_info ) );
return 0;
}
static int arbel_get_guid_info ( struct arbel *arbel,
struct ib_mad_guid_info *guid_info ) {
union arbelprm_mad mad;
struct ib_mad_hdr *hdr = &mad.mad.mad_hdr;
int rc;
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_GUID_INFO );
if ( ( rc = arbel_mad_ifc ( arbel, &mad ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not get GUID info: %s\n",
arbel, strerror ( rc ) );
return rc;
}
memcpy ( guid_info, &mad.mad.guid_info, sizeof ( *guid_info ) );
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;
int rc;
if ( ( rc = arbel_get_port_info ( arbel, &port_info ) ) != 0 )
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 );
return 0;
}
/**
* Probe PCI device
*
@ -1514,11 +1596,20 @@ static int arbel_probe ( struct pci_device *pci,
strerror ( rc ) );
return rc;
}
if ( ( rc = arbel_get_port_gid ( arbel, &ibdev->port_gid ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not determine port GID: %s\n",
arbel, strerror ( rc ) );
return rc;
}
DBG ( "Port GID:\n" );
DBG_HD ( &ibdev->port_gid, sizeof ( ibdev->port_gid ) );
mac = ( ( struct ib_mac * ) netdev->ll_addr );
mac->qpn = htonl ( mlx->own_qp->qpn );
memcpy ( &mac->gid, ib_data.port_gid.raw, sizeof ( mac->gid ) );
memcpy ( &mac->gid, &ibdev->port_gid, sizeof ( mac->gid ) );
#endif
#if 0
@ -1545,6 +1636,20 @@ static int arbel_probe ( struct pci_device *pci,
return rc;
}
/**
* Remove PCI device
*
* @v pci PCI device
*/
static void arbel_remove ( struct pci_device *pci ) {
struct net_device *netdev = pci_get_drvdata ( pci );
unregister_netdev ( netdev );
ib_driver_close ( 0 );
netdev_nullify ( netdev );
netdev_put ( netdev );
}
static struct pci_device_id arbel_nics[] = {
PCI_ROM ( 0x15b3, 0x6282, "MT25218", "MT25218 HCA driver" ),
PCI_ROM ( 0x15b3, 0x6274, "MT25204", "MT25204 HCA driver" ),

115
src/include/gpxe/infiniband.h
View File

@ -277,6 +277,8 @@ struct ib_device_operations {
/** An Infiniband device */
struct ib_device {
/** Port GID */
struct ib_gid port_gid;
/** Infiniband operations */
struct ib_device_operations *op;
/** Device private data */
@ -323,6 +325,119 @@ ib_mcast_detach ( struct ib_device *ibdev, struct ib_queue_pair *qp,
ibdev->op->mcast_detach ( ibdev, qp, gid );
}
/*****************************************************************************
*
* Management datagrams
*
* Portions Copyright (c) 2004 Mellanox Technologies Ltd. All rights
* reserved.
*
*/
/* Management base version */
#define IB_MGMT_BASE_VERSION 1
/* Management classes */
#define IB_MGMT_CLASS_SUBN_LID_ROUTED 0x01
#define IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE 0x81
#define IB_MGMT_CLASS_SUBN_ADM 0x03
#define IB_MGMT_CLASS_PERF_MGMT 0x04
#define IB_MGMT_CLASS_BM 0x05
#define IB_MGMT_CLASS_DEVICE_MGMT 0x06
#define IB_MGMT_CLASS_CM 0x07
#define IB_MGMT_CLASS_SNMP 0x08
#define IB_MGMT_CLASS_VENDOR_RANGE2_START 0x30
#define IB_MGMT_CLASS_VENDOR_RANGE2_END 0x4F
/* Management methods */
#define IB_MGMT_METHOD_GET 0x01
#define IB_MGMT_METHOD_SET 0x02
#define IB_MGMT_METHOD_GET_RESP 0x81
#define IB_MGMT_METHOD_SEND 0x03
#define IB_MGMT_METHOD_TRAP 0x05
#define IB_MGMT_METHOD_REPORT 0x06
#define IB_MGMT_METHOD_REPORT_RESP 0x86
#define IB_MGMT_METHOD_TRAP_REPRESS 0x07
#define IB_MGMT_METHOD_DELETE 0x15
#define IB_MGMT_METHOD_RESP 0x80
/* Subnet management attributes */
#define IB_SMP_ATTR_NOTICE 0x0002
#define IB_SMP_ATTR_NODE_DESC 0x0010
#define IB_SMP_ATTR_NODE_INFO 0x0011
#define IB_SMP_ATTR_SWITCH_INFO 0x0012
#define IB_SMP_ATTR_GUID_INFO 0x0014
#define IB_SMP_ATTR_PORT_INFO 0x0015
#define IB_SMP_ATTR_PKEY_TABLE 0x0016
#define IB_SMP_ATTR_SL_TO_VL_TABLE 0x0017
#define IB_SMP_ATTR_VL_ARB_TABLE 0x0018
#define IB_SMP_ATTR_LINEAR_FORWARD_TABLE 0x0019
#define IB_SMP_ATTR_RANDOM_FORWARD_TABLE 0x001A
#define IB_SMP_ATTR_MCAST_FORWARD_TABLE 0x001B
#define IB_SMP_ATTR_SM_INFO 0x0020
#define IB_SMP_ATTR_VENDOR_DIAG 0x0030
#define IB_SMP_ATTR_LED_INFO 0x0031
#define IB_SMP_ATTR_VENDOR_MASK 0xFF00
struct ib_mad_hdr {
uint8_t base_version;
uint8_t mgmt_class;
uint8_t class_version;
uint8_t method;
uint16_t status;
uint16_t class_specific;
uint64_t tid;
uint16_t attr_id;
uint16_t resv;
uint32_t attr_mod;
} __attribute__ (( packed ));
struct ib_mad_data {
struct ib_mad_hdr mad_hdr;
uint8_t data[232];
} __attribute__ (( packed ));
struct ib_mad_guid_info {
struct ib_mad_hdr mad_hdr;
uint32_t mkey[2];
uint32_t reserved[8];
uint8_t gid_local[8];
} __attribute__ (( packed ));
struct ib_mad_port_info {
struct ib_mad_hdr mad_hdr;
uint32_t mkey[2];
uint32_t reserved[8];
uint32_t mkey2[2];
uint8_t gid_prefix[8];
uint16_t lid;
uint16_t mastersm_lid;
uint32_t cap_mask;
uint16_t diag_code;
uint16_t mkey_lease_period;
uint8_t local_port_num;
uint8_t link_width_enabled;
uint8_t link_width_supported;
uint8_t link_width_active;
uint8_t port_state__link_speed_supported;
uint8_t link_down_def_state__port_phys_state;
uint8_t lmc__r1__mkey_prot_bits;
uint8_t link_speed_enabled__link_speed_active;
} __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;
} __attribute__ (( packed ));
extern struct ll_protocol infiniband_protocol;