bgpd: move rd id bitfield to bgp_master

currently, we have a rd_id bitfield
to assign an unique index for auto RD.
This bitfield currently resides under struct bgp which seems wrong.
We need to shift this to a global space
as this ID space is really global per box.
One more reason to keep it at a global data structure is,
the ID space could be used by both VNIs and VRFs.

Signed-off-by: Mitesh Kanjariya <mitesh@cumulusnetworks.com>
This commit is contained in:
mitesh 2017-10-25 16:13:32 -07:00 committed by Mitesh Kanjariya
parent 90384b2471
commit e9eb5f63ed
3 changed files with 11 additions and 9 deletions

View File

@ -3443,7 +3443,7 @@ struct bgpevpn *bgp_evpn_new(struct bgp *bgp, vni_t vni,
vpn->import_rtl->cmp = (int (*)(void *, void *))evpn_route_target_cmp;
vpn->export_rtl = list_new();
vpn->export_rtl->cmp = (int (*)(void *, void *))evpn_route_target_cmp;
bf_assign_index(bgp->rd_idspace, vpn->rd_id);
bf_assign_index(bm->rd_idspace, vpn->rd_id);
derive_rd_rt_for_vni(bgp, vpn);
/* Initialize EVPN route table. */
@ -3475,7 +3475,7 @@ void bgp_evpn_free(struct bgp *bgp, struct bgpevpn *vpn)
bgp_evpn_unmap_vni_from_its_rts(bgp, vpn);
list_delete_and_null(&vpn->import_rtl);
list_delete_and_null(&vpn->export_rtl);
bf_release_index(bgp->rd_idspace, vpn->rd_id);
bf_release_index(bm->rd_idspace, vpn->rd_id);
hash_release(bgp->vnihash, vpn);
QOBJ_UNREG(vpn);
XFREE(MTYPE_BGP_EVPN, vpn);
@ -3937,7 +3937,6 @@ void bgp_evpn_cleanup(struct bgp *bgp)
if (bgp->l2vnis)
list_delete_and_null(&bgp->l2vnis);
bgp->l2vnis = NULL;
bf_free(bgp->rd_idspace);
}
/*
@ -3967,9 +3966,6 @@ void bgp_evpn_init(struct bgp *bgp)
bgp->l2vnis = list_new();
bgp->l2vnis->cmp =
(int (*)(void *, void *))vni_hash_cmp;
bf_init(bgp->rd_idspace, UINT16_MAX);
/*assign 0th index in the bitfield, so that we start with id 1*/
bf_assign_zero_index(bgp->rd_idspace);
}
void bgp_evpn_vrf_delete(struct bgp *bgp_vrf)

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@ -7401,6 +7401,12 @@ void bgp_master_init(struct thread_master *master)
bgp_process_queue_init();
/* init the rd id space.
assign 0th index in the bitfield,
so that we start with id 1 */
bf_init(bm->rd_idspace, UINT16_MAX);
bf_assign_zero_index(bm->rd_idspace);
/* Enable multiple instances by default. */
bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE);

View File

@ -137,6 +137,9 @@ struct bgp_master {
/* clang-format off */
#define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
/* Id space for automatic RD derivation for an EVI/VRF */
bitfield_t rd_idspace;
QOBJ_FIELDS
};
DECLARE_QOBJ_TYPE(bgp_master)
@ -409,9 +412,6 @@ struct bgp {
/* Hash table of VRF import RTs to VRFs */
struct hash *vrf_import_rt_hash;
/* Id space for automatic RD derivation for an EVI */
bitfield_t rd_idspace;
/* L3-VNI corresponding to this vrf */
vni_t l3vni;