[PATCH 2/2] gcc: Oe-selftest failure analysis - allowing multiple ssh sessions

[Harish.Sadineni@windriver.com]

From: Harish Sadineni <Harish.Sadineni@windriver.com>

Reusing SSH Connection to speed up remote login process using multiplexing to reduce time taken while running oe-selftest for gcc.

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 meta/lib/oeqa/selftest/cases/gcc.py                   | 10 ++++++++++
 meta/recipes-connectivity/openssh/openssh/sshd_config |  2 +-
 meta/recipes-devtools/gcc/gcc-testsuite.inc           |  3 ++-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/meta/lib/oeqa/selftest/cases/gcc.py b/meta/lib/oeqa/selftest/cases/gcc.py
index 4cc0894d42..992a5b74be 100644
--- a/meta/lib/oeqa/selftest/cases/gcc.py
+++ b/meta/lib/oeqa/selftest/cases/gcc.py
@@ -5,6 +5,7 @@
 #
 import os
 import time
+import subprocess
 from oeqa.core.decorator import OETestTag
 from oeqa.core.case import OEPTestResultTestCase
 from oeqa.selftest.case import OESelftestTestCase
@@ -83,6 +84,15 @@ class GccSelfTestBase(OESelftestTestCase, OEPTestResultTestCase):
             # validate that SSH is working
             status, _ = qemu.run("uname")
             self.assertEqual(status, 0)
+            qemu_ip = qemu.ip
+            ssh_command = [
+            "ssh", "-o", "StrictHostKeyChecking=no",
+            "-o", "UserKnownHostsFile=/dev/null",
+            "-o", "ControlMaster=auto",
+            "-o", "ControlPath=~/.ssh/control-%r@%h:%p",
+            "-o", "Controlpersist=yes", "root@{}".format(qemu_ip),
+            "exit" ]
+            subprocess.run(ssh_command, check=True)
 
             return self.run_check(*args, ssh=qemu.ip, **kwargs)
 
diff --git a/meta/recipes-connectivity/openssh/openssh/sshd_config b/meta/recipes-connectivity/openssh/openssh/sshd_config
index b9357ef6c5..37ffe28142 100644
--- a/meta/recipes-connectivity/openssh/openssh/sshd_config
+++ b/meta/recipes-connectivity/openssh/openssh/sshd_config
@@ -34,7 +34,7 @@ Include /etc/ssh/sshd_config.d/*.conf
 #PermitRootLogin prohibit-password
 #StrictModes yes
 #MaxAuthTries 6
-#MaxSessions 10
+MaxSessions 1000
 
 #PubkeyAuthentication yes
 
diff --git a/meta/recipes-devtools/gcc/gcc-testsuite.inc b/meta/recipes-devtools/gcc/gcc-testsuite.inc
index 0a950b6c9e..62e9691a99 100644
--- a/meta/recipes-devtools/gcc/gcc-testsuite.inc
+++ b/meta/recipes-devtools/gcc/gcc-testsuite.inc
@@ -87,7 +87,8 @@ python check_prepare() {
         content.append("set_board_info username {0}".format(d.getVar("TOOLCHAIN_TEST_HOST_USER")))
 
         port = d.getVar("TOOLCHAIN_TEST_HOST_PORT")
-        content.append("set_board_info rsh_prog \"/usr/bin/ssh -p {0} -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no\"".format(port))
+        qemuip_address = d.getVar("TOOLCHAIN_TEST_HOST")
+        content.append("set_board_info rsh_prog \"/usr/bin/ssh -S ~/.ssh/control-root@{0}:{1} \"".format( qemuip_address, port))
         content.append("set_board_info rcp_prog \"/usr/bin/scp -P {0} -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no\"".format(port))
 
         return "\n".join(content)
-- 
2.43.0