diff options
author | 2017-04-25 03:31:15 -0700 | |
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committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/ipxe/src/net/infiniband/ib_pathrec.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/net/infiniband/ib_pathrec.c')
-rw-r--r-- | qemu/roms/ipxe/src/net/infiniband/ib_pathrec.c | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/qemu/roms/ipxe/src/net/infiniband/ib_pathrec.c b/qemu/roms/ipxe/src/net/infiniband/ib_pathrec.c deleted file mode 100644 index f9cbab87f..000000000 --- a/qemu/roms/ipxe/src/net/infiniband/ib_pathrec.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * Copyright (C) 2009 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <byteswap.h> -#include <errno.h> -#include <ipxe/infiniband.h> -#include <ipxe/ib_mi.h> -#include <ipxe/ib_pathrec.h> - -/** @file - * - * Infiniband path lookups - * - */ - -/** - * Handle path transaction completion - * - * @v ibdev Infiniband device - * @v mi Management interface - * @v madx Management transaction - * @v rc Status code - * @v mad Received MAD (or NULL on error) - * @v av Source address vector (or NULL on error) - */ -static void ib_path_complete ( struct ib_device *ibdev, - struct ib_mad_interface *mi, - struct ib_mad_transaction *madx, - int rc, union ib_mad *mad, - struct ib_address_vector *av __unused ) { - struct ib_path *path = ib_madx_get_ownerdata ( madx ); - union ib_gid *dgid = &path->av.gid; - struct ib_path_record *pathrec = &mad->sa.sa_data.path_record; - - /* Report failures */ - if ( ( rc == 0 ) && ( mad->hdr.status != htons ( IB_MGMT_STATUS_OK ) )) - rc = -ENETUNREACH; - if ( rc != 0 ) { - DBGC ( ibdev, "IBDEV %p path lookup for " IB_GID_FMT - " failed: %s\n", - ibdev, IB_GID_ARGS ( dgid ), strerror ( rc ) ); - goto out; - } - - /* Extract values from MAD */ - path->av.lid = ntohs ( pathrec->dlid ); - path->av.sl = ( pathrec->reserved__sl & 0x0f ); - path->av.rate = ( pathrec->rate_selector__rate & 0x3f ); - DBGC ( ibdev, "IBDEV %p path to " IB_GID_FMT " is %04x sl %d rate " - "%d\n", ibdev, IB_GID_ARGS ( dgid ), path->av.lid, path->av.sl, - path->av.rate ); - - out: - /* Destroy the completed transaction */ - ib_destroy_madx ( ibdev, mi, madx ); - path->madx = NULL; - - /* Hand off to upper completion handler */ - path->op->complete ( ibdev, path, rc, &path->av ); -} - -/** Path transaction completion operations */ -static struct ib_mad_transaction_operations ib_path_op = { - .complete = ib_path_complete, -}; - -/** - * Create path - * - * @v ibdev Infiniband device - * @v av Address vector to complete - * @v op Path operations - * @ret path Path - */ -struct ib_path * -ib_create_path ( struct ib_device *ibdev, struct ib_address_vector *av, - struct ib_path_operations *op ) { - struct ib_path *path; - union ib_mad mad; - struct ib_mad_sa *sa = &mad.sa; - - /* Allocate and initialise structure */ - path = zalloc ( sizeof ( *path ) ); - if ( ! path ) - goto err_alloc_path; - path->ibdev = ibdev; - memcpy ( &path->av, av, sizeof ( path->av ) ); - path->op = op; - - /* Construct path request */ - memset ( sa, 0, sizeof ( *sa ) ); - sa->mad_hdr.mgmt_class = IB_MGMT_CLASS_SUBN_ADM; - sa->mad_hdr.class_version = IB_SA_CLASS_VERSION; - sa->mad_hdr.method = IB_MGMT_METHOD_GET; - sa->mad_hdr.attr_id = htons ( IB_SA_ATTR_PATH_REC ); - sa->sa_hdr.comp_mask[1] = - htonl ( IB_SA_PATH_REC_DGID | IB_SA_PATH_REC_SGID ); - memcpy ( &sa->sa_data.path_record.dgid, &path->av.gid, - sizeof ( sa->sa_data.path_record.dgid ) ); - memcpy ( &sa->sa_data.path_record.sgid, &ibdev->gid, - sizeof ( sa->sa_data.path_record.sgid ) ); - - /* Create management transaction */ - path->madx = ib_create_madx ( ibdev, ibdev->gsi, &mad, NULL, - &ib_path_op ); - if ( ! path->madx ) - goto err_create_madx; - ib_madx_set_ownerdata ( path->madx, path ); - - return path; - - ib_destroy_madx ( ibdev, ibdev->gsi, path->madx ); - err_create_madx: - free ( path ); - err_alloc_path: - return NULL; -} - -/** - * Destroy path - * - * @v ibdev Infiniband device - * @v path Path - */ -void ib_destroy_path ( struct ib_device *ibdev, struct ib_path *path ) { - - if ( path->madx ) - ib_destroy_madx ( ibdev, ibdev->gsi, path->madx ); - free ( path ); -} - -/** Number of path cache entries - * - * Must be a power of two. - */ -#define IB_NUM_CACHED_PATHS 4 - -/** A cached path */ -struct ib_cached_path { - /** Path */ - struct ib_path *path; -}; - -/** Path cache */ -static struct ib_cached_path ib_path_cache[IB_NUM_CACHED_PATHS]; - -/** Oldest path cache entry index */ -static unsigned int ib_path_cache_idx; - -/** - * Find path cache entry - * - * @v ibdev Infiniband device - * @v dgid Destination GID - * @ret path Path cache entry, or NULL - */ -static struct ib_cached_path * -ib_find_path_cache_entry ( struct ib_device *ibdev, union ib_gid *dgid ) { - struct ib_cached_path *cached; - unsigned int i; - - for ( i = 0 ; i < IB_NUM_CACHED_PATHS ; i++ ) { - cached = &ib_path_cache[i]; - if ( ! cached->path ) - continue; - if ( cached->path->ibdev != ibdev ) - continue; - if ( memcmp ( &cached->path->av.gid, dgid, - sizeof ( cached->path->av.gid ) ) != 0 ) - continue; - return cached; - } - - return NULL; -} - -/** - * Handle cached path transaction completion - * - * @v ibdev Infiniband device - * @v path Path - * @v rc Status code - * @v av Address vector, or NULL on error - */ -static void ib_cached_path_complete ( struct ib_device *ibdev, - struct ib_path *path, int rc, - struct ib_address_vector *av __unused ) { - struct ib_cached_path *cached = ib_path_get_ownerdata ( path ); - - /* If the transaction failed, erase the cache entry */ - if ( rc != 0 ) { - /* Destroy the old cache entry */ - ib_destroy_path ( ibdev, path ); - memset ( cached, 0, sizeof ( *cached ) ); - return; - } - - /* Do not destroy the completed transaction; we still need to - * refer to the resolved path. - */ -} - -/** Cached path transaction completion operations */ -static struct ib_path_operations ib_cached_path_op = { - .complete = ib_cached_path_complete, -}; - -/** - * Resolve path - * - * @v ibdev Infiniband device - * @v av Address vector to complete - * @ret rc Return status code - * - * This provides a non-transactional way to resolve a path, via a - * cache similar to ARP. - */ -int ib_resolve_path ( struct ib_device *ibdev, struct ib_address_vector *av ) { - union ib_gid *gid = &av->gid; - struct ib_cached_path *cached; - unsigned int cache_idx; - - /* Sanity check */ - if ( ! av->gid_present ) { - DBGC ( ibdev, "IBDEV %p attempt to look up path without GID\n", - ibdev ); - return -EINVAL; - } - - /* Look in cache for a matching entry */ - cached = ib_find_path_cache_entry ( ibdev, gid ); - if ( cached && cached->path->av.lid ) { - /* Populated entry found */ - av->lid = cached->path->av.lid; - av->rate = cached->path->av.rate; - av->sl = cached->path->av.sl; - DBGC2 ( ibdev, "IBDEV %p cache hit for " IB_GID_FMT "\n", - ibdev, IB_GID_ARGS ( gid ) ); - return 0; - } - DBGC ( ibdev, "IBDEV %p cache miss for " IB_GID_FMT "%s\n", ibdev, - IB_GID_ARGS ( gid ), ( cached ? " (in progress)" : "" ) ); - - /* If lookup is already in progress, do nothing */ - if ( cached ) - return -ENOENT; - - /* Locate a new cache entry to use */ - cache_idx = ( (ib_path_cache_idx++) % IB_NUM_CACHED_PATHS ); - cached = &ib_path_cache[cache_idx]; - - /* Destroy the old cache entry */ - if ( cached->path ) - ib_destroy_path ( ibdev, cached->path ); - memset ( cached, 0, sizeof ( *cached ) ); - - /* Create new path */ - cached->path = ib_create_path ( ibdev, av, &ib_cached_path_op ); - if ( ! cached->path ) { - DBGC ( ibdev, "IBDEV %p could not create path\n", - ibdev ); - return -ENOMEM; - } - ib_path_set_ownerdata ( cached->path, cached ); - - /* Not found yet */ - return -ENOENT; -} |