xCAT/xNBA
2
0
Fork 0
mirror of https://github.com/xcat2/xNBA.git synced 2024-12-14 07:11:32 +00:00
Code Issues Projects Releases Wiki Activity

Obtains a response to the get path record!

Browse Source
This commit is contained in:
Michael Brown 2007-09-17 08:36:56 +01:00
parent e05a8cd4de
commit b3d3814c17
5 changed files with 276 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

181
src/drivers/net/ipoib.c
View File

@ -44,15 +44,24 @@ extern struct ib_address_vector hack_ipoib_bcast_av;
/** IPoIB MTU */
#define IPOIB_MTU 2048
/** Number of IPoIB send work queue entries */
/** Number of IPoIB data send work queue entries */
#define IPOIB_DATA_NUM_SEND_WQES 4
/** Number of IPoIB receive work queue entries */
#define IPOIB_DATA_NUM_RECV_WQES 8
/** Number of IPoIB data receive work queue entries */
#define IPOIB_DATA_NUM_RECV_WQES 4
/** Number of IPoIB completion entries */
/** Number of IPoIB data completion entries */
#define IPOIB_DATA_NUM_CQES 8
/** Number of IPoIB metadata send work queue entries */
#define IPOIB_META_NUM_SEND_WQES 4
/** Number of IPoIB metadata receive work queue entries */
#define IPOIB_META_NUM_RECV_WQES 4
/** Number of IPoIB metadata completion entries */
#define IPOIB_META_NUM_CQES 8
/** An IPoIB queue set */
struct ipoib_queue_set {
/** Completion queue */
@ -84,10 +93,15 @@ struct ipoib_device {
****************************************************************************
*/
/** Broadcast QPN used in IPoIB MAC addresses
*
* This is a guaranteed invalid real QPN
*/
#define IPOIB_BROADCAST_QPN 0xffffffffUL
/** Broadcast IPoIB address */
static struct ipoib_mac ipoib_broadcast = {
.gid = { { 0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff } },
.qpn = ntohl ( IPOIB_BROADCAST_QPN ),
};
/**
@ -244,6 +258,73 @@ static int ipoib_create_qset ( struct ipoib_device *ipoib,
return rc;
}
/**
* Transmit path record request
*
* @v ipoib IPoIB device
* @v gid Destination GID
* @ret rc Return status code
*/
static int ipoib_get_path_record ( struct ipoib_device *ipoib,
struct ib_gid *gid ) {
struct ib_device *ibdev = ipoib->ibdev;
struct io_buffer *iobuf;
struct ib_mad_path_record *path_record;
struct ib_address_vector av;
static uint32_t tid = 0;
int rc;
DBG ( "get_path_record():\n" );
int get_path_record(struct ib_gid *dgid, uint16_t *dlid_p,
uint8_t *sl_p, uint8_t *rate_p);
uint16_t tmp_dlid;
uint8_t tmp_sl;
uint8_t tmp_rate;
get_path_record ( gid, &tmp_dlid, &tmp_sl, &tmp_rate );
DBG ( "ipoib_get_path_record():\n" );
/* Allocate I/O buffer */
iobuf = alloc_iob ( sizeof ( *path_record ) );
if ( ! iobuf )
return -ENOMEM;
iob_put ( iobuf, sizeof ( *path_record ) );
path_record = iobuf->data;
memset ( path_record, 0, sizeof ( *path_record ) );
/* Construct path record request */
path_record->mad_hdr.base_version = IB_MGMT_BASE_VERSION;
path_record->mad_hdr.mgmt_class = IB_MGMT_CLASS_SUBN_ADM;
path_record->mad_hdr.class_version = 2;
path_record->mad_hdr.method = IB_MGMT_METHOD_GET;
path_record->mad_hdr.attr_id = htons ( IB_SA_ATTR_PATH_REC );
path_record->mad_hdr.tid = tid++;
path_record->sa_hdr.comp_mask[1] =
htonl ( IB_SA_PATH_REC_DGID | IB_SA_PATH_REC_SGID );
memcpy ( &path_record->dgid, gid, sizeof ( path_record->dgid ) );
memcpy ( &path_record->sgid, &ibdev->port_gid,
sizeof ( path_record->sgid ) );
DBG_HD ( path_record, sizeof ( *path_record ) );
/* Construct address vector */
memset ( &av, 0, sizeof ( av ) );
av.dlid = ibdev->sm_lid;
av.dest_qp = IB_SA_QPN;
av.qkey = IB_SA_QKEY;
/* Post send request */
if ( ( rc = ib_post_send ( ibdev, ipoib->meta.qp, &av,
iobuf ) ) != 0 ) {
DBGC ( ipoib, "IPoIB %p could not send get path record: %s\n",
ipoib, strerror ( rc ) );
free_iob ( iobuf );
return rc;
}
return 0;
}
/**
* Transmit packet via IPoIB network device
*
@ -256,19 +337,29 @@ static int ipoib_transmit ( struct net_device *netdev,
struct ipoib_device *ipoib = netdev->priv;
struct ib_device *ibdev = ipoib->ibdev;
struct ipoib_pseudo_hdr *ipoib_pshdr = iobuf->data;
int rc;
if ( iob_len ( iobuf ) < sizeof ( *ipoib_pshdr ) ) {
DBGC ( ipoib, "IPoIB %p buffer too short\n", ipoib );
return -EINVAL;
}
DBG ( "TX pseudo-header:\n" );
DBG_HD ( ipoib_pshdr, sizeof ( *ipoib_pshdr ) );
if ( ipoib_pshdr->peer.qpn != htonl ( IPOIB_BROADCAST_QPN ) ) {
DBG ( "Get path record\n" );
rc = ipoib_get_path_record ( ipoib, &ipoib_pshdr->peer.gid );
free_iob ( iobuf );
return 0;
}
iob_pull ( iobuf, ( sizeof ( *ipoib_pshdr ) ) );
return ib_post_send ( ibdev, ipoib->data.qp,
&hack_ipoib_bcast_av, iobuf );
}
/**
* Handle IPoIB send completion
* Handle IPoIB data send completion
*
* @v ibdev Infiniband device
* @v qp Queue pair
@ -286,7 +377,7 @@ static void ipoib_data_complete_send ( struct ib_device *ibdev __unused,
}
/**
* Handle IPoIB receive completion
* Handle IPoIB data receive completion
*
* @v ibdev Infiniband device
* @v qp Queue pair
@ -315,6 +406,61 @@ static void ipoib_data_complete_recv ( struct ib_device *ibdev __unused,
ipoib->data.recv_fill--;
}
/**
* Handle IPoIB metadata send completion
*
* @v ibdev Infiniband device
* @v qp Queue pair
* @v completion Completion
* @v iobuf I/O buffer
*/
static void ipoib_meta_complete_send ( struct ib_device *ibdev __unused,
struct ib_queue_pair *qp,
struct ib_completion *completion,
struct io_buffer *iobuf ) {
struct net_device *netdev = qp->owner_priv;
struct ipoib_device *ipoib = netdev->priv;
DBG ( "Woohoo! METADATA TX completion\n" );
if ( completion->syndrome ) {
DBGC ( ipoib, "IPoIB %p metadata TX completion error %x\n",
ipoib, completion->syndrome );
}
free_iob ( iobuf );
}
/**
* Handle IPoIB metadata receive completion
*
* @v ibdev Infiniband device
* @v qp Queue pair
* @v completion Completion
* @v iobuf I/O buffer
*/
static void ipoib_meta_complete_recv ( struct ib_device *ibdev __unused,
struct ib_queue_pair *qp,
struct ib_completion *completion,
struct io_buffer *iobuf ) {
struct net_device *netdev = qp->owner_priv;
struct ipoib_device *ipoib = netdev->priv;
DBG ( "***************** META TX!!!!!! ********\n" );
if ( completion->syndrome ) {
DBGC ( ipoib, "IPoIB %p metadata RX completion error %x\n",
ipoib, completion->syndrome );
} else {
iob_put ( iobuf, completion->len );
DBG ( "Metadata RX:\n" );
DBG_HD ( iobuf->data, iob_len ( iobuf ) );
}
ipoib->meta.recv_fill--;
free_iob ( iobuf );
}
/**
* Refill IPoIB receive ring
*
@ -349,6 +495,9 @@ static void ipoib_poll ( struct net_device *netdev ) {
ib_poll_cq ( ibdev, ipoib->data.cq, ipoib_data_complete_send,
ipoib_data_complete_recv );
ib_poll_cq ( ibdev, ipoib->meta.cq, ipoib_meta_complete_send,
ipoib_meta_complete_recv );
ipoib_refill_recv ( ipoib, &ipoib->meta );
ipoib_refill_recv ( ipoib, &ipoib->data );
}
@ -382,7 +531,8 @@ static int ipoib_open ( struct net_device *netdev ) {
return rc;
}
/* Fill receive ring */
/* Fill receive rings */
ipoib_refill_recv ( ipoib, &ipoib->meta );
ipoib_refill_recv ( ipoib, &ipoib->data );
return 0;
@ -436,6 +586,17 @@ int ipoib_probe ( struct ib_device *ibdev ) {
ipoib->netdev = netdev;
ipoib->ibdev = ibdev;
/* Allocate metadata queue set */
if ( ( rc = ipoib_create_qset ( ipoib, &ipoib->meta,
IPOIB_META_NUM_CQES,
IPOIB_META_NUM_SEND_WQES,
IPOIB_META_NUM_RECV_WQES,
IB_SA_QKEY ) ) != 0 ) {
DBGC ( ipoib, "IPoIB %p could not allocate metadata QP: %s\n",
ipoib, strerror ( rc ) );
goto err_create_meta_qset;
}
/* Allocate data queue set */
if ( ( rc = ipoib_create_qset ( ipoib, &ipoib->data,
IPOIB_DATA_NUM_CQES,
@ -461,6 +622,8 @@ int ipoib_probe ( struct ib_device *ibdev ) {
err_register_netdev:
ipoib_destroy_qset ( ipoib, &ipoib->data );
err_create_data_qset:
ipoib_destroy_qset ( ipoib, &ipoib->meta );
err_create_meta_qset:
netdev_nullify ( netdev );
netdev_put ( netdev );
return rc;

5
src/drivers/net/mlx_ipoib/ib_mad.c
View File

@ -264,7 +264,7 @@ static int join_mc_group(__u32 * qkey_p, __u16 * mlid_p, __u8 join)
return is_good ? 0 : -1;
}
static int get_path_record(union ib_gid_u *dgid, __u16 * dlid_p, u8 * sl_p,
int get_path_record(union ib_gid_u *dgid, __u16 * dlid_p, u8 * sl_p,
u8 * rate_p)
{
struct path_record_mad_st *mad, *rcv_mad;
@ -321,6 +321,9 @@ static int get_path_record(union ib_gid_u *dgid, __u16 * dlid_p, u8 * sl_p,
cpu_to_be_buf(mad, sizeof *mad);
memcpy(mad->path_record.sgid.raw, ib_data.port_gid.raw, 16);
DBG ( "data:\n" );
DBG_HD ( mad, sizeof ( *mad ) );
rc = post_send_req(qp, snd_wqe, 1);
if (rc) {
eprintf("");

2
src/drivers/net/mlx_ipoib/ib_mad.h
View File

@ -104,7 +104,7 @@ union mad_u {
struct ib_mad_st mad;
} __attribute__ ((packed));
static int get_path_record(union ib_gid_u *dgid, __u16 * dlid_p, __u8 * sl_p,
int get_path_record(union ib_gid_u *dgid, __u16 * dlid_p, __u8 * sl_p,
__u8 * rate_p);
#endif /* __ib_mad_h__ */

42
src/drivers/net/mlx_ipoib/mt25218.c
View File

@ -174,8 +174,8 @@ static int arbel_cmd ( struct arbel *arbel, unsigned long command,
size_t dump_len = in_len;
if ( dump_len > 256 )
dump_len = 256;
DBG ( "Input:\n" );
DBG_HD ( in, dump_len );
// DBG ( "Input:\n" );
// DBG_HD ( in, dump_len );
}
/* Issue command */
@ -212,8 +212,8 @@ static int arbel_cmd ( struct arbel *arbel, unsigned long command,
size_t dump_len = out_len;
if ( dump_len > 256 )
dump_len = 256;
DBG ( "Output:\n" );
DBG_HD ( out, dump_len );
// DBG ( "Output:\n" );
// DBG_HD ( out, dump_len );
}
return 0;
@ -749,7 +749,7 @@ static void arbel_ring_doorbell ( struct arbel *arbel,
/** GID used for GID-less send work queue entries */
static const struct ib_gid arbel_no_gid = {
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 }
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0 }
};
/**
@ -805,6 +805,14 @@ static int arbel_post_send ( struct ib_device *ibdev,
MLX_FILL_1 ( &wqe->ud, 3, ud_address_vector.sl, av->sl );
gid = ( av->gid_present ? &av->gid : &arbel_no_gid );
memcpy ( &wqe->ud.u.dwords[4], gid, sizeof ( *gid ) );
if ( ! av->gid_present ) {
DBG ( "no_gid:\n" );
DBG_HD ( &arbel_no_gid, sizeof ( arbel_no_gid ) );
DBG ( "gid:\n" );
DBG_HD ( &wqe->ud.u.dwords[4], 16 );
}
MLX_FILL_1 ( &wqe->ud, 8, destination_qp, av->dest_qp );
MLX_FILL_1 ( &wqe->ud, 9, q_key, av->qkey );
MLX_FILL_1 ( &wqe->data[0], 0, byte_count, iob_len ( iobuf ) );
@ -821,6 +829,11 @@ static int arbel_post_send ( struct ib_device *ibdev,
f, 1,
always1, 1 );
DBG ( "arbel_post_send()\n" );
DBG_HD ( wqe, sizeof ( *wqe ) );
/* Update doorbell record */
barrier();
qp_db_rec = &arbel->db_rec[arbel_send_wq->doorbell_idx].qp;
@ -1248,6 +1261,17 @@ static int arbel_get_port_gid ( struct arbel *arbel,
return 0;
}
static int arbel_get_sm_lid ( struct arbel *arbel,
unsigned long *sm_lid ) {
struct ib_mad_port_info port_info;
int rc;
if ( ( rc = arbel_get_port_info ( arbel, &port_info ) ) != 0 )
return rc;
*sm_lid = ntohs ( port_info.mastersm_lid );
return 0;
}
static int arbel_get_broadcast_gid ( struct arbel *arbel,
struct ib_gid *broadcast_gid ) {
static const struct ib_gid ipv4_broadcast_gid = {
@ -1323,6 +1347,13 @@ static int arbel_probe ( struct pci_device *pci,
arbel->limits.reserved_qps =
( 1 << MLX_GET ( &dev_lim, log2_rsvd_qps ) );
/* Get subnet manager LID */
if ( ( rc = arbel_get_sm_lid ( arbel, &ibdev->sm_lid ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not determine subnet manager "
"LID: %s\n", arbel, strerror ( rc ) );
goto err_get_sm_lid;
}
/* Get port GID */
if ( ( rc = arbel_get_port_gid ( arbel, &ibdev->port_gid ) ) != 0 ) {
DBGC ( arbel, "Arbel %p could not determine port GID: %s\n",
@ -1362,6 +1393,7 @@ static int arbel_probe ( struct pci_device *pci,
err_ipoib_probe:
err_get_broadcast_gid:
err_get_port_gid:
err_get_sm_lid:
err_query_dev_lim:
ib_driver_close ( 0 );
err_ib_driver_init:

63
src/include/gpxe/infiniband.h
View File

@ -10,6 +10,12 @@
#include <stdint.h>
#include <gpxe/device.h>
/** Subnet administrator QPN */
#define IB_SA_QPN 1
/** Subnet administrator queue key */
#define IB_SA_QKEY 0x80010000UL
/** An Infiniband Global Identifier */
struct ib_gid {
uint8_t bytes[16];
@ -250,7 +256,9 @@ struct ib_device {
/** Port GID */
struct ib_gid port_gid;
/** Broadcast GID */
struct ib_gid broadcast_gid;
struct ib_gid broadcast_gid;
/** Subnet manager LID */
unsigned long sm_lid;
/** Underlying device */
struct device *dev;
/** Infiniband operations */
@ -422,6 +430,31 @@ static inline void * ib_get_ownerdata ( struct ib_device *ibdev ) {
#define IB_SMP_ATTR_LED_INFO 0x0031
#define IB_SMP_ATTR_VENDOR_MASK 0xFF00
#define IB_SA_ATTR_MC_MEMBER_REC 0x38
#define IB_SA_ATTR_PATH_REC 0x35
#define IB_SA_MCMEMBER_REC_MGID (1<<0)
#define IB_SA_MCMEMBER_REC_PORT_GID (1<<1)
#define IB_SA_MCMEMBER_REC_QKEY (1<<2)
#define IB_SA_MCMEMBER_REC_MLID (1<<3)
#define IB_SA_MCMEMBER_REC_MTU_SELECTOR (1<<4)
#define IB_SA_MCMEMBER_REC_MTU (1<<5)
#define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS (1<<6)
#define IB_SA_MCMEMBER_REC_PKEY (1<<7)
#define IB_SA_MCMEMBER_REC_RATE_SELECTOR (1<<8)
#define IB_SA_MCMEMBER_REC_RATE (1<<9)
#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR (1<<10)
#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME (1<<11)
#define IB_SA_MCMEMBER_REC_SL (1<<12)
#define IB_SA_MCMEMBER_REC_FLOW_LABEL (1<<13)
#define IB_SA_MCMEMBER_REC_HOP_LIMIT (1<<14)
#define IB_SA_MCMEMBER_REC_SCOPE (1<<15)
#define IB_SA_MCMEMBER_REC_JOIN_STATE (1<<16)
#define IB_SA_MCMEMBER_REC_PROXY_JOIN (1<<17)
#define IB_SA_PATH_REC_DGID (1<<2)
#define IB_SA_PATH_REC_SGID (1<<3)
struct ib_mad_hdr {
uint8_t base_version;
uint8_t mgmt_class;
@ -435,6 +468,17 @@ struct ib_mad_hdr {
uint32_t attr_mod;
} __attribute__ (( packed ));
struct ib_sa_hdr {
uint32_t sm_key[2];
uint16_t reserved;
uint16_t attrib_offset;
uint32_t comp_mask[2];
} __attribute__ (( packed ));
struct ib_rmpp_hdr {
uint32_t raw[3];
} __attribute__ (( packed ));
struct ib_mad_data {
struct ib_mad_hdr mad_hdr;
uint8_t data[232];
@ -475,12 +519,29 @@ struct ib_mad_pkey_table {
uint16_t pkey[16][2];
} __attribute__ (( packed ));
struct ib_mad_path_record {
struct ib_mad_hdr mad_hdr;
struct ib_rmpp_hdr rmpp_hdr;
struct ib_sa_hdr sa_hdr;
uint32_t reserved0[2];
struct ib_gid dgid;
struct ib_gid sgid;
uint16_t dlid;
uint16_t slid;
uint32_t hop_limit__flow_label__raw_traffic;
uint32_t pkey__numb_path__reversible__tclass;
uint32_t rate__rate_selector__mtu__mtu_selector__sl__reserved;
uint32_t preference__packet_lifetime__packet_lifetime_selector;
uint32_t reserved1[35];
} __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;
struct ib_mad_path_record path_record;
} __attribute__ (( packed ));
#endif /* _GPXE_INFINIBAND_H */