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| author | Anuradha Karuppiah <anuradhak@cumulusnetworks.com> | 2019-03-26 21:36:43 +0100 |
|---|---|---|
| committer | Anuradha Karuppiah <anuradhak@cumulusnetworks.com> | 2019-04-20 17:33:21 +0200 |
| commit | 6a5de0ad483b568221ef0eca5d9205ff5d2d08c0 (patch) | |
| tree | 33e77c41877c66dd5095aa6672dc3a3436c27751 /pimd/pim_upstream.h | |
| parent | pimd: provide an api to force stop kat on an upstream entry (diff) | |
| download | frr-6a5de0ad483b568221ef0eca5d9205ff5d2d08c0.tar.xz frr-6a5de0ad483b568221ef0eca5d9205ff5d2d08c0.zip | |
pimd: provide a mechanism to pin the IIF for an SG entry
In the case of vxlan origination entries IIF is set to -
1. lo for single VTEPs
2. MLAG-ISL for VTEPs multihomed via MLAG.
This commit creates the necessary infrastructure by -
1. allowing the IIF to be set statically (without RPF lookup)
2. and by preventing next-hop-tracking registration
PS: Note that I have skipped additional checks in pim_upstream_del
intentionally i.e. an attempt will be made to remove nexthop-tracking
for the upstream entry (with STATIC_IIF) which will fail because of the
up-entry not being in the nh's hash table. Ideally we should maintain
a nh pointer in the up-entry to prevent this unnecessary processing.
In the abscence of that I wanted to avoid spraying STATIC_IIF checks
all over.
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Diffstat (limited to 'pimd/pim_upstream.h')
| -rw-r--r-- | pimd/pim_upstream.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/pimd/pim_upstream.h b/pimd/pim_upstream.h index 5eb230a76..c0bd9137d 100644 --- a/pimd/pim_upstream.h +++ b/pimd/pim_upstream.h @@ -43,6 +43,11 @@ * lack of BUM traffic. */ #define PIM_UPSTREAM_FLAG_MASK_DISABLE_KAT_EXPIRY (1 << 9) +/* for pim vxlan we need to pin the IIF to lo or MLAG-ISL on the + * originating VTEP. This flag allows that by setting IIF to the + * value specified and preventing next-hop-tracking on the entry + */ +#define PIM_UPSTREAM_FLAG_MASK_STATIC_IIF (1 << 10) #define PIM_UPSTREAM_FLAG_ALL 0xFFFFFFFF #define PIM_UPSTREAM_FLAG_TEST_DR_JOIN_DESIRED(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED) @@ -55,6 +60,7 @@ #define PIM_UPSTREAM_FLAG_TEST_SEND_SG_RPT_PRUNE(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SEND_SG_RPT_PRUNE) #define PIM_UPSTREAM_FLAG_TEST_SRC_LHR(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SRC_LHR) #define PIM_UPSTREAM_FLAG_TEST_DISABLE_KAT_EXPIRY(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_DISABLE_KAT_EXPIRY) +#define PIM_UPSTREAM_FLAG_TEST_STATIC_IIF(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_STATIC_IIF) #define PIM_UPSTREAM_FLAG_SET_DR_JOIN_DESIRED(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED) #define PIM_UPSTREAM_FLAG_SET_DR_JOIN_DESIRED_UPDATED(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED_UPDATED) @@ -66,6 +72,7 @@ #define PIM_UPSTREAM_FLAG_SET_SEND_SG_RPT_PRUNE(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SEND_SG_RPT_PRUNE) #define PIM_UPSTREAM_FLAG_SET_SRC_LHR(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SRC_LHR) #define PIM_UPSTREAM_FLAG_SET_DISABLE_KAT_EXPIRY(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_DISABLE_KAT_EXPIRY) +#define PIM_UPSTREAM_FLAG_SET_STATIC_IIF(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_STATIC_IIF) #define PIM_UPSTREAM_FLAG_UNSET_DR_JOIN_DESIRED(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED) #define PIM_UPSTREAM_FLAG_UNSET_DR_JOIN_DESIRED_UPDATED(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED_UPDATED) @@ -77,6 +84,7 @@ #define PIM_UPSTREAM_FLAG_UNSET_SEND_SG_RPT_PRUNE(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SEND_SG_RPT_PRUNE) #define PIM_UPSTREAM_FLAG_UNSET_SRC_LHR(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SRC_LHR) #define PIM_UPSTREAM_FLAG_UNSET_DISABLE_KAT_EXPIRY(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_DISABLE_KAT_EXPIRY) +#define PIM_UPSTREAM_FLAG_UNSET_STATIC_IIF(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_STATIC_IIF) enum pim_upstream_state { PIM_UPSTREAM_NOTJOINED, @@ -256,4 +264,6 @@ unsigned int pim_upstream_hash_key(void *arg); bool pim_upstream_equal(const void *arg1, const void *arg2); struct pim_upstream *pim_upstream_keep_alive_timer_proc( struct pim_upstream *up); +void pim_upstream_fill_static_iif(struct pim_upstream *up, + struct interface *incoming); #endif /* PIM_UPSTREAM_H */ |