datapath: Drop support for linux pre-2.6.32 kernel.

This makes datapath module much close to upstream datapath and make code easy to understand. Signed-off-by: Pravin B Shelar <[email protected]> Acked-by: Jesse Gross <[email protected]>
leonshaw · Sep 6, 2013 · 6c5581c · 6c5581c
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Showing 6 changed files with 9 additions and 7 deletions.
diff --git a/FAQ b/FAQ
@@ -27,7 +27,7 @@ A: Open vSwitch is a production quality open source software switch
 Q: What virtualization platforms can use Open vSwitch?
 
 A: Open vSwitch can currently run on any Linux-based virtualization
-   platform (kernel 2.6.18 and newer), including: KVM, VirtualBox, Xen,
+   platform (kernel 2.6.32 and newer), including: KVM, VirtualBox, Xen,
    Xen Cloud Platform, XenServer. As of Linux 3.3 it is part of the
    mainline kernel.  The bulk of the code is written in platform-
    independent C and is easily ported to other environments.  We welcome
@@ -148,13 +148,13 @@ A: The following table lists the Linux kernel versions against which the
        1.9.x      2.6.18 to 3.8
        1.10.x     2.6.18 to 3.8
        1.11.x     2.6.18 to 3.8
-       1.12.x     2.6.18 to 3.10
+       2.x        2.6.32 to 3.10
 
    Open vSwitch userspace should also work with the Linux kernel module
    built into Linux 3.3 and later.
 
    Open vSwitch userspace is not sensitive to the Linux kernel version.
-   It should build against almost any kernel, certainly against 2.6.18
+   It should build against almost any kernel, certainly against 2.6.32
    and later.
 
 Q: What Linux kernel versions does IPFIX flow monitoring work with?

diff --git a/NEWS b/NEWS
@@ -23,6 +23,7 @@ v2.0.0 - xx xxx xxxx
     - ovs-ofctl:
       * New "ofp-parse" for printing OpenFlow messages read from a file.
     - Added configurable flow caching support to IPFIX exporter.
+    - Dropped support for Linux pre-2.6.32.
 
 
 v1.11.0 - 28 Aug 2013

diff --git a/README b/README
@@ -30,7 +30,7 @@ vSwitch supports the following features:
     * Transactional configuration database with C and Python bindings
     * High-performance forwarding using a Linux kernel module
 
-The included Linux kernel module supports Linux 2.6.18 and up, with
+The included Linux kernel module supports Linux 2.6.32 and up, with
 testing focused on 2.6.32 with Centos and Xen patches.  Open vSwitch
 also has special support for Citrix XenServer and Red Hat Enterprise
 Linux hosts.

diff --git a/SubmittingPatches b/SubmittingPatches
@@ -32,7 +32,7 @@ Testing is also important:
 
         - A patch that modifies Linux kernel code should be at least
           build-tested on various Linux kernel versions before
-          submission.  I suggest versions 2.6.18, 2.6.27, and whatever
+          submission.  I suggest versions 2.6.32 and whatever
           the current latest release version is at the time.
 
         - A patch that modifies the ofproto or vswitchd code should be

diff --git a/datapath/datapath.c b/datapath/datapath.c
@@ -61,9 +61,9 @@
 #include "vport-internal_dev.h"
 #include "vport-netdev.h"
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) || \
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) || \
     LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)
-#error Kernels before 2.6.18 or after 3.9 are not supported by this version of Open vSwitch.
+#error Kernels before 2.6.32 or after 3.10 are not supported by this version of Open vSwitch.
 #endif
 
 #define REHASH_FLOW_INTERVAL (10 * 60 * HZ)

diff --git a/debian/changelog b/debian/changelog
@@ -24,6 +24,7 @@ openvswitch (2.0.0-1) unstable; urgency=low
     - ovs-ofctl:
       * New "ofp-parse" for printing OpenFlow messages read from a file.
     - Added configurable flow caching support to IPFIX exporter.
+    - Dropped support for Linux pre-2.6.32.
 
  -- Open vSwitch team <[email protected]>  Wed, 28 Aug 2013 16:11:32 -0700