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Zebra: Perform NHT evaluation for VRFs

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NHT evaluation was not being triggered for any VRF after RIB processing. Fix
this and attempt to schedule only those VRFs for which RIB processing was
scheduled.

Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>

Ticket: CM-9175
Reviewed By: CCR-4149
Testing Done: Manual verification
This commit is contained in:
vivek 2016-02-23 03:42:19 +00:00
parent e186aa9ffa
commit 9ec6b0bb0e
2 changed files with 28 additions and 4 deletions
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4
zebra/rib.h
View File

@ -323,6 +323,10 @@ struct zebra_vrf
/* FIB identifier. */
u_char fib_id;
/* Flags. */
u_int16_t flags;
#define ZEBRA_VRF_RIB_SCHEDULED (1 << 0)
u_int32_t table_id;
/* Routing table. */

28
zebra/zebra_rib.c
View File

@ -1656,10 +1656,25 @@ process_subq (struct list * subq, u_char qindex)
static void
meta_queue_process_complete (struct work_queue *dummy)
{
zebra_evaluate_rnh(0, AF_INET, 0, RNH_NEXTHOP_TYPE, NULL);
zebra_evaluate_rnh(0, AF_INET, 0, RNH_IMPORT_CHECK_TYPE, NULL);
zebra_evaluate_rnh(0, AF_INET6, 0, RNH_NEXTHOP_TYPE, NULL);
zebra_evaluate_rnh(0, AF_INET6, 0, RNH_IMPORT_CHECK_TYPE, NULL);
vrf_iter_t iter;
struct zebra_vrf *zvrf;
/* Evaluate nexthops for those VRFs which underwent route processing. This
* should limit the evaluation to the necessary VRFs in most common
* situations.
*/
for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter))
{
if (((zvrf = vrf_iter2info (iter)) != NULL) &&
(zvrf->flags & ZEBRA_VRF_RIB_SCHEDULED))
{
zvrf->flags &= ~ZEBRA_VRF_RIB_SCHEDULED;
zebra_evaluate_rnh(zvrf->vrf_id, AF_INET, 0, RNH_NEXTHOP_TYPE, NULL);
zebra_evaluate_rnh(zvrf->vrf_id, AF_INET, 0, RNH_IMPORT_CHECK_TYPE, NULL);
zebra_evaluate_rnh(zvrf->vrf_id, AF_INET6, 0, RNH_NEXTHOP_TYPE, NULL);
zebra_evaluate_rnh(zvrf->vrf_id, AF_INET6, 0, RNH_IMPORT_CHECK_TYPE, NULL);
}
}
}
/* Dispatch the meta queue by picking, processing and unlocking the next RN from
@ -1714,6 +1729,7 @@ rib_meta_queue_add (struct meta_queue *mq, struct route_node *rn)
RNODE_FOREACH_RIB (rn, rib)
{
u_char qindex = meta_queue_map[rib->type];
struct zebra_vrf *zvrf;
/* Invariant: at this point we always have rn->info set. */
if (CHECK_FLAG (rib_dest_from_rnode (rn)->flags,
@ -1728,6 +1744,10 @@ rib_meta_queue_add (struct meta_queue *mq, struct route_node *rn)
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
zlog_debug ("%u:%s/%d: rn %p queued into sub-queue %u",
rib->vrf_id, buf, rn->p.prefixlen, rn, qindex);
zvrf = zebra_vrf_lookup (rib->vrf_id);
if (zvrf)
zvrf->flags |= ZEBRA_VRF_RIB_SCHEDULED;
}
}