Merged PR 6918507: Fix fastreboot patch to shutdown SLB neighbors dur…

…ing fastboot

Fix fastreboot path to shutdown SLB neighbors during fastboot

This issue was found when the new build on internal branch started failing.

Build failure log:

```
Applying patch ../sonic-utilities.patch/0002-Stopping-all-BGP-SLB-neighbors-if-they-re-presented-.patch
patching file scripts/fast-reboot
Hunk sonic-net#1 succeeded at 43 with fuzz 1 (offset 7 lines).
Hunk sonic-net#2 FAILED at 123.
Hunk sonic-net#3 succeeded at 502 with fuzz 1 (offset 81 lines).
Hunk sonic-net#4 succeeded at 582 (offset 95 lines).
1 out of 4 hunks FAILED -- rejects in file scripts/fast-reboot
```

Repro'd this locally:
```
vadixit@DevVM-20:~/workspace/Networking-acs-buildimage/src/sonic-utilities$ quilt push -a
Applying patch patches/0002-Stopping-all-BGP-SLB-neighbors-if-they-re-presented-.patch
patching file scripts/fast-reboot
Hunk sonic-net#1 succeeded at 42 with fuzz 1 (offset 6 lines).
Hunk sonic-net#2 FAILED at 123.
Hunk sonic-net#3 succeeded at 489 with fuzz 1 (offset 68 lines).
Hunk sonic-net#4 succeeded at 569 (offset 82 lines).
1 out of 4 hunks FAILED -- rejects in file scripts/fast-reboot
Patch patches/0002-Stopping-all-BGP-SLB-neighbors-if-they-re-presented-.patch does not apply (enforce with -f)
```

Issue fixed with this change:
```
vadixit@DevVM-20:~/workspace/Networking-acs-buildimage/src/sonic-utilities$ quilt push -a
Applying patch patches/0001-fast-reboot-patch-Handle-SLB-neighbors-shutdown-duri.patch
patching file scripts/fast-reboot

Now at patch patches/0001-fast-reboot-patch-Handle-SLB-neighbors-shutdown-duri.patch
```

Additionally, changed the series file and renamed the 0002 patch as 0001 patch as this is the only patch on this branch right now.

src/sonic-utilities.patch/0002-Stopping-all-BGP-SLB-neighbors-if-they-re-presented-.patch → src/sonic-utilities.patch/0001-fast-reboot-patch-Handle-SLB-neighbors-shutdown-duri.patch

@@ -1,36 +1,26 @@
-From 7d0a63278aa5eedadd48db3937fa0139f3411669 Mon Sep 17 00:00:00 2001
-From: Vaibhav Hemant Dixit <vadixit@microsoft.com>
-Date: Fri, 23 Jul 2021 16:27:56 -0700
-Subject: [PATCH] [fast-reboot][patch] Restore SLB neighbors state after
- fast-reboot failure
-
----
- scripts/fast-reboot | 31 +++++++++++++++++++++++++++++++
- 1 file changed, 31 insertions(+)
-
-Index: sonic-utilities/scripts/fast-reboot
-===================================================================
---- sonic-utilities.orig/scripts/fast-reboot
-+++ sonic-utilities/scripts/fast-reboot
-@@ -36,6 +36,7 @@ EXIT_ORCHAGENT_SHUTDOWN=10
- EXIT_FILTER_FDB_ENTRIES_FAILURE=13
+diff --git a/scripts/fast-reboot b/scripts/fast-reboot
+index 00ed1a5..9a6bc33 100755
+--- a/scripts/fast-reboot
++++ b/scripts/fast-reboot
+@@ -42,6 +42,7 @@ EXIT_ORCHAGENT_SHUTDOWN=10
+ EXIT_SYNCD_SHUTDOWN=11
  EXIT_COUNTERPOLL_DELAY_FAILURE=14
  EXIT_DB_INTEGRITY_FAILURE=15
 +EXIT_HANDLE_SLB_NEIGHBORS=200
  EXIT_NO_CONTROL_PLANE_ASSISTANT=20
  EXIT_SONIC_INSTALLER_VERIFY_REBOOT=21
-
-@@ -122,6 +123,8 @@ function clear_fast_boot()
-     common_clear
-
-     sonic-db-cli STATE_DB DEL "FAST_REBOOT|system" &>/dev/null || /bin/true
+ EXIT_PLATFORM_FW_AU_FAILURE=22
+@@ -145,6 +146,8 @@ function clear_boot()
+     if [[ "$REBOOT_TYPE" = "fast-reboot" ]]; then
+         sonic-db-cli STATE_DB DEL "FAST_REBOOT|system" &>/dev/null || /bin/true
+     fi
 +
 +    handle_slb_neighbors restore
  }
 
- function clear_warm_boot()
-@@ -420,6 +423,32 @@ function check_warm_restart_in_progress(
-     done
+ function init_warm_reboot_states()
+@@ -488,6 +491,32 @@ function check_conflict_boot_in_fw_update() {
+     fi
  }
 
 +function handle_slb_neighbors()
@@ -62,7 +52,7 @@ Index: sonic-utilities/scripts/fast-reboot
  # main starts here
  parseOptions $@
 
-@@ -460,6 +489,8 @@ case "$REBOOT_TYPE" in
+@@ -542,6 +571,8 @@ case "$REBOOT_TYPE" in
          ;;
  esac
 

src/sonic-utilities.patch/series

@@ -1 +1 @@
-0002-Stopping-all-BGP-SLB-neighbors-if-they-re-presented-.patch
+0001-fast-reboot-patch-Handle-SLB-neighbors-shutdown-duri.patch