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authorH. Peter Anvin <hpa@zytor.com>2016-02-09 18:08:47 -0800
committerH. Peter Anvin <hpa@zytor.com>2016-02-09 18:08:47 -0800
commitf2f897a1762fab84d2905f32b1c15dd7b42abb56 (patch)
treea38f51d3f1fcbf44afddb4736d549c12eaf491be /gpxe/src/net/infiniband/ib_packet.c
parent72d2959272b4616f17a97667e6dfa9d06bf109a3 (diff)
downloadsyslinux-f2f897a1762fab84d2905f32b1c15dd7b42abb56.tar.gz
gpxe: delete long since obsolete snapshot of gPXE
gPXE has been deprecated in favor of iPXE for many, many years now. It is much better than users get it directly from the iPXE project, since we should no longer need any special modifications for Syslinux use. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'gpxe/src/net/infiniband/ib_packet.c')
-rw-r--r--gpxe/src/net/infiniband/ib_packet.c244
1 files changed, 0 insertions, 244 deletions
diff --git a/gpxe/src/net/infiniband/ib_packet.c b/gpxe/src/net/infiniband/ib_packet.c
deleted file mode 100644
index 08820ef3..00000000
--- a/gpxe/src/net/infiniband/ib_packet.c
+++ /dev/null
@@ -1,244 +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 <byteswap.h>
-#include <gpxe/iobuf.h>
-#include <gpxe/infiniband.h>
-#include <gpxe/ib_packet.h>
-
-/**
- * @file
- *
- * Infiniband Packet Formats
- *
- */
-
-/**
- * Add IB headers
- *
- * @v ibdev Infiniband device
- * @v iobuf I/O buffer to contain headers
- * @v qp Queue pair
- * @v payload_len Payload length
- * @v av Address vector
- */
-int ib_push ( struct ib_device *ibdev, struct io_buffer *iobuf,
- struct ib_queue_pair *qp, size_t payload_len,
- const struct ib_address_vector *av ) {
- struct ib_local_route_header *lrh;
- struct ib_global_route_header *grh;
- struct ib_base_transport_header *bth;
- struct ib_datagram_extended_transport_header *deth;
- size_t orig_iob_len = iob_len ( iobuf );
- size_t pad_len;
- size_t lrh_len;
- size_t grh_len;
- unsigned int vl;
- unsigned int lnh;
-
- DBGC2 ( ibdev, "IBDEV %p TX %04x:%08lx => %04x:%08lx (key %08lx)\n",
- ibdev, ibdev->lid, qp->ext_qpn, av->lid, av->qpn, av->qkey );
-
- /* Calculate packet length */
- pad_len = ( (-payload_len) & 0x3 );
- payload_len += pad_len;
- payload_len += 4; /* ICRC */
-
- /* Reserve space for headers */
- orig_iob_len = iob_len ( iobuf );
- deth = iob_push ( iobuf, sizeof ( *deth ) );
- bth = iob_push ( iobuf, sizeof ( *bth ) );
- grh_len = ( payload_len + iob_len ( iobuf ) - orig_iob_len );
- grh = ( av->gid_present ?
- iob_push ( iobuf, sizeof ( *grh ) ) : NULL );
- lrh = iob_push ( iobuf, sizeof ( *lrh ) );
- lrh_len = ( payload_len + iob_len ( iobuf ) - orig_iob_len );
-
- /* Construct LRH */
- vl = ( ( qp->ext_qpn == IB_QPN_SMI ) ? IB_VL_SMP : IB_VL_DEFAULT );
- lrh->vl__lver = ( vl << 4 );
- lnh = ( grh ? IB_LNH_GRH : IB_LNH_BTH );
- lrh->sl__lnh = ( ( av->sl << 4 ) | lnh );
- lrh->dlid = htons ( av->lid );
- lrh->length = htons ( lrh_len >> 2 );
- lrh->slid = htons ( ibdev->lid );
-
- /* Construct GRH, if required */
- if ( grh ) {
- grh->ipver__tclass__flowlabel =
- htonl ( IB_GRH_IPVER_IPv6 << 28 );
- grh->paylen = htons ( grh_len );
- grh->nxthdr = IB_GRH_NXTHDR_IBA;
- grh->hoplmt = 0;
- memcpy ( &grh->sgid, &ibdev->gid, sizeof ( grh->sgid ) );
- memcpy ( &grh->dgid, &av->gid, sizeof ( grh->dgid ) );
- }
-
- /* Construct BTH */
- bth->opcode = BTH_OPCODE_UD_SEND;
- bth->se__m__padcnt__tver = ( pad_len << 4 );
- bth->pkey = htons ( ibdev->pkey );
- bth->dest_qp = htonl ( av->qpn );
- bth->ack__psn = htonl ( ( qp->send.psn++ ) & 0xffffffUL );
-
- /* Construct DETH */
- deth->qkey = htonl ( av->qkey );
- deth->src_qp = htonl ( qp->ext_qpn );
-
- DBGCP_HDA ( ibdev, 0, iobuf->data,
- ( iob_len ( iobuf ) - orig_iob_len ) );
-
- return 0;
-}
-
-/**
- * Remove IB headers
- *
- * @v ibdev Infiniband device
- * @v iobuf I/O buffer containing headers
- * @v qp Queue pair to fill in, or NULL
- * @v payload_len Payload length to fill in, or NULL
- * @v av Address vector to fill in
- */
-int ib_pull ( struct ib_device *ibdev, struct io_buffer *iobuf,
- struct ib_queue_pair **qp, size_t *payload_len,
- struct ib_address_vector *av ) {
- struct ib_local_route_header *lrh;
- struct ib_global_route_header *grh;
- struct ib_base_transport_header *bth;
- struct ib_datagram_extended_transport_header *deth;
- size_t orig_iob_len = iob_len ( iobuf );
- unsigned int lnh;
- size_t pad_len;
- unsigned long qpn;
- unsigned int lid;
-
- /* Clear return values */
- if ( qp )
- *qp = NULL;
- if ( payload_len )
- *payload_len = 0;
- memset ( av, 0, sizeof ( *av ) );
-
- /* Extract LRH */
- if ( iob_len ( iobuf ) < sizeof ( *lrh ) ) {
- DBGC ( ibdev, "IBDEV %p RX too short (%zd bytes) for LRH\n",
- ibdev, iob_len ( iobuf ) );
- return -EINVAL;
- }
- lrh = iobuf->data;
- iob_pull ( iobuf, sizeof ( *lrh ) );
- av->lid = ntohs ( lrh->slid );
- av->sl = ( lrh->sl__lnh >> 4 );
- lnh = ( lrh->sl__lnh & 0x3 );
- lid = ntohs ( lrh->dlid );
-
- /* Reject unsupported packets */
- if ( ! ( ( lnh == IB_LNH_BTH ) || ( lnh == IB_LNH_GRH ) ) ) {
- DBGC ( ibdev, "IBDEV %p RX unsupported LNH %x\n",
- ibdev, lnh );
- return -ENOTSUP;
- }
-
- /* Extract GRH, if present */
- if ( lnh == IB_LNH_GRH ) {
- if ( iob_len ( iobuf ) < sizeof ( *grh ) ) {
- DBGC ( ibdev, "IBDEV %p RX too short (%zd bytes) "
- "for GRH\n", ibdev, iob_len ( iobuf ) );
- return -EINVAL;
- }
- grh = iobuf->data;
- iob_pull ( iobuf, sizeof ( *grh ) );
- av->gid_present = 1;
- memcpy ( &av->gid, &grh->sgid, sizeof ( av->gid ) );
- } else {
- grh = NULL;
- }
-
- /* Extract BTH */
- if ( iob_len ( iobuf ) < sizeof ( *bth ) ) {
- DBGC ( ibdev, "IBDEV %p RX too short (%zd bytes) for BTH\n",
- ibdev, iob_len ( iobuf ) );
- return -EINVAL;
- }
- bth = iobuf->data;
- iob_pull ( iobuf, sizeof ( *bth ) );
- if ( bth->opcode != BTH_OPCODE_UD_SEND ) {
- DBGC ( ibdev, "IBDEV %p unsupported BTH opcode %x\n",
- ibdev, bth->opcode );
- return -ENOTSUP;
- }
- qpn = ntohl ( bth->dest_qp );
-
- /* Extract DETH */
- if ( iob_len ( iobuf ) < sizeof ( *deth ) ) {
- DBGC ( ibdev, "IBDEV %p RX too short (%zd bytes) for DETH\n",
- ibdev, iob_len ( iobuf ) );
- return -EINVAL;
- }
- deth = iobuf->data;
- iob_pull ( iobuf, sizeof ( *deth ) );
- av->qpn = ntohl ( deth->src_qp );
- av->qkey = ntohl ( deth->qkey );
-
- /* Calculate payload length, if applicable */
- if ( payload_len ) {
- pad_len = ( ( bth->se__m__padcnt__tver >> 4 ) & 0x3 );
- *payload_len = ( ( ntohs ( lrh->length ) << 2 )
- - ( orig_iob_len - iob_len ( iobuf ) )
- - pad_len - 4 /* ICRC */ );
- }
-
- /* Determine destination QP, if applicable */
- if ( qp ) {
- if ( IB_LID_MULTICAST ( lid ) && grh ) {
- if ( ! ( *qp = ib_find_qp_mgid ( ibdev, &grh->dgid ))){
- DBGC ( ibdev, "IBDEV %p RX for unknown MGID "
- "%08x:%08x:%08x:%08x\n", ibdev,
- ntohl ( grh->dgid.u.dwords[0] ),
- ntohl ( grh->dgid.u.dwords[1] ),
- ntohl ( grh->dgid.u.dwords[2] ),
- ntohl ( grh->dgid.u.dwords[3] ) );
- return -ENODEV;
- }
- } else {
- if ( ! ( *qp = ib_find_qp_qpn ( ibdev, qpn ) ) ) {
- DBGC ( ibdev, "IBDEV %p RX for nonexistent "
- "QPN %lx\n", ibdev, qpn );
- return -ENODEV;
- }
- }
- assert ( *qp );
- }
-
- DBGC2 ( ibdev, "IBDEV %p RX %04x:%08lx <= %04x:%08lx (key %08x)\n",
- ibdev, lid, ( IB_LID_MULTICAST( lid ) ?
- ( qp ? (*qp)->ext_qpn : -1UL ) : qpn ),
- av->lid, av->qpn, ntohl ( deth->qkey ) );
- DBGCP_HDA ( ibdev, 0,
- ( iobuf->data - ( orig_iob_len - iob_len ( iobuf ) ) ),
- ( orig_iob_len - iob_len ( iobuf ) ) );
-
- return 0;
-}