VNet/Vxlan delete handling by prsunny · Pull Request #766 · sonic-net/sonic-swss

prsunny · 2019-01-24T01:55:15Z

What I did
Delete handling for VNet Routes, NH tunnels and VNets

Why I did it
To support deletion scenarios

How I verified it
Tested on DUT. VS test case would be added subsequently

Details if related
Based on design sonic-net/SONiC#324

orchagent/intfsorch.cpp

marian-pritsak

As comments

marian-pritsak · 2019-01-30T17:05:45Z

orchagent/vnetorch.cpp


-VNetVrfObject::VNetVrfObject(const std::string& vnet, string& tunnel, set<string>& peer,
-                             vector<sai_attribute_t>& attrs) : VNetObject(tunnel, peer)
+VNetVrfObject::VNetVrfObject(const std::string& vnet, string& tunnel, set<string>& peer, uint32_t vni,


Maybe it is worth considering grouping all these parameters into a single struct VnetInfo?

lguohan · 2019-02-02T02:11:44Z

orchagent/vnetorch.cpp

+
+            if (!vxlan_orch->removeVxlanTunnelMap(vrf_obj->getTunnelName(), vrf_obj->getVni()))
+            {
+                SWSS_LOG_ERROR("VNET '%s' map delete failed", vnet_name.c_str());


SWSS_LOG_ERROR("VNET '%s' map delete failed", vnet_name.c_str()); [](start = 16, length = 65)

why no return false here?

lguohan · 2019-02-02T02:39:33Z

orchagent/vnetorch.cpp

+        return true;
+    }
+
+    bool subnet = (!nh.ips.getSize())?true:false;


subnet [](start = 9, length = 6)

->isSubnet

lguohan · 2019-02-02T02:41:35Z

orchagent/vnetorch.cpp

-            throw std::runtime_error("Route add failed");
+            throw std::runtime_error("Route update failed");
        }
    }


what is else condition? do we need to print warning, log, ???

The else case is handled by the Bitmap implementation. So it is left intentionally.

lguohan · 2019-02-02T02:45:16Z

orchagent/vnetorch.cpp

+        if (!doRouteTask<VNetVrfObject>(vnet_name, ip_pfx, nh, op))
        {
-            throw std::runtime_error("Route add failed");
+            throw std::runtime_error("Route update failed");


throw std::runtime_error("Route update failed"); [](start = 10, length = 50)

it looks to me it is dangerous to crash here. what if the nexthop interface is not created yet in the doRouteTask.

I checked the routeorch.cpp, it does not throw error, if add or delete route fails.

In reply to: 253250419 [](ancestors = 253250419)

it just retry.

In reply to: 253250430 [](ancestors = 253250430,253250419)

lguohan · 2019-02-02T02:47:41Z

orchagent/vnetorch.cpp

+    return (routes_.size() + tunnels_.size());
+}
+
+bool VNetVrfObject::getRouteNH(IpPrefix& ipPrefix, nextHop& nh)


-> getRouteNexthop

lguohan · 2019-02-02T02:48:50Z

orchagent/vnetorch.cpp

+    return true;
+}
+
+sai_object_id_t VNetVrfObject::getNextHop(tunnelEndpoint& endp)


getNextHop [](start = 31, length = 10)

-> getTunnelNexthop

lguohan · 2019-02-02T02:49:06Z

orchagent/vnetorch.cpp

+    return nh_id;
+}
+
+bool VNetVrfObject::removeNextHop(tunnelEndpoint& endp)


removeTunnelNexthop

lguohan · 2019-02-02T02:54:36Z

orchagent/vnetorch.cpp

+
+    if (!vxlan_orch->removeNextHopTunnel(tun_name, endp.ip, endp.mac, endp.vni))
+    {
+        SWSS_LOG_ERROR("VNET %s NH remove failed for '%s'", vnet_name_.c_str(), endp.ip.to_string().c_str());


NH [](start = 32, length = 2)

-> tunnel nexthop

lguohan · 2019-02-02T02:56:54Z

orchagent/vxlanorch.cpp

+    auto tunnel_obj = getVxlanTunnel(tunnelName);
+
+    //Delete request for the nh tunnel id
+    return tunnel_obj->removeNHTunnel(ipAddr, macAddress, vni);


removeNHTunnel [](start = 23, length = 14)

since it is already a tunnel object, you do not need tunnel in the function name. -> removeNexthop

lguohan · 2019-02-02T02:57:51Z

orchagent/vxlanorch.h

        return ids_.tunnel_encap_id;
    }

+    void updateNHTunnel(IpAddress& ipAddr, MacAddress macAddress, uint32_t vni, sai_object_id_t nh_id);


-> updateNexthop

lguohan · 2019-02-02T03:02:50Z

sai_status_t status = sai_route_api->create_route_entry(&route_entry, 1, &route_attr);

we should probably increase the crm counter.

     if (route_entry.destination.addr_family == SAI_IP_ADDR_FAMILY_IPV4)

823 {
824 gCrmOrch->incCrmResUsedCounter(CrmResourceType::CRM_IPV4_ROUTE);
825 }
826 else
827 {
828 gCrmOrch->incCrmResUsedCounter(CrmResourceType::CRM_IPV6_ROUTE);
829 }

Refers to: orchagent/vnetorch.cpp:484 in 91d77df. [](commit_id = 91d77df, deletion_comment = False)

orchagent/intfsorch.cpp

Added breakout subcommand in config command Signed-off-by: Sangita Maity <[email protected]>

Signed-off-by: Guohan Lu <[email protected]>

* Route/NH and VNet delete handling * Handle VNET Route with Nexthop IP, fix route remove * Address review comments, increment CRM counters,

…et#766) This is to support adding custom observers to the swss logger. With restartLogger, now applications could start logger with the following lines: linkToDb(demoDb, myCustomPrioNotify, defaultPrio); restartLogger() Signed-off-by: Longxiang Lyu [email protected]

prsunny added 4 commits January 24, 2019 01:48

Route/NH and VNet delete handling

1db930a

Merge remote-tracking branch 'upstream/master' into vnet_del

19703a6

Handle VNET Route with Nexthop IP, fix route remove

59f2498

Interface delete fix, base changes for multiple nexthops

e21e202

marian-pritsak reviewed Jan 30, 2019

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orchagent/intfsorch.cpp Show resolved Hide resolved

marian-pritsak requested changes Jan 30, 2019

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marian-pritsak reviewed Jan 30, 2019

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Address review comment, use VnetInfo

91d77df

lguohan reviewed Feb 2, 2019

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marian-pritsak requested changes Feb 5, 2019

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orchagent/intfsorch.cpp Show resolved Hide resolved

marian-pritsak approved these changes Feb 5, 2019

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Address review comments, increment CRM counters

23c5fa2

lguohan approved these changes Feb 7, 2019

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prsunny merged commit 6d5424d into sonic-net:master Feb 7, 2019

prsunny deleted the vnet_del branch March 19, 2020 01:33

EdenGri pushed a commit to EdenGri/sonic-swss that referenced this pull request Feb 28, 2022

[config] Add Initial draft of Breakout Mode subcommand (sonic-net#766)

aa1b072

Added breakout subcommand in config command Signed-off-by: Sangita Maity <[email protected]>

oleksandrivantsiv pushed a commit to oleksandrivantsiv/sonic-swss that referenced this pull request Mar 1, 2023

[ci]: use sonicbld pool (sonic-net#766)

b10b5dd

Signed-off-by: Guohan Lu <[email protected]>

Janetxxx pushed a commit to Janetxxx/sonic-swss that referenced this pull request Nov 10, 2025

VNet/Vxlan delete handling (sonic-net#766)

da373da

* Route/NH and VNet delete handling * Handle VNET Route with Nexthop IP, fix route remove * Address review comments, increment CRM counters,

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prsunny commented Jan 24, 2019

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lguohan commented Feb 2, 2019

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