diff mbox

[dpdk-dev] doc: update ipv4 multicast sample application guide

Message ID 1498202639-26410-1-git-send-email-hemant.agrawal@nxp.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Hemant Agrawal June 23, 2017, 7:23 a.m. UTC 
  Add a note to indicate that only first four ports can be
tested with this application.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 doc/guides/sample_app_ug/ipv4_multicast.rst | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

John McNamara June 26, 2017, 3:02 p.m. UTC | #1 
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Hemant Agrawal
> Sent: Friday, June 23, 2017 8:24 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH] doc: update ipv4 multicast sample application
> guide
> 
> Add a note to indicate that only first four ports can be tested with this
> application.
> 
> Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>

Acked-by: John McNamara <john.mcnamara@intel.com>
Thomas Monjalon July 9, 2017, 8:44 p.m. UTC | #2 
> > Add a note to indicate that only first four ports can be tested with this
> > application.
> > 
> > Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> 
> Acked-by: John McNamara <john.mcnamara@intel.com>

Applied, thanks
diff mbox

Patch

diff --git a/doc/guides/sample_app_ug/ipv4_multicast.rst b/doc/guides/sample_app_ug/ipv4_multicast.rst
index 3e30f50..b73023f 100644
--- a/doc/guides/sample_app_ug/ipv4_multicast.rst
+++ b/doc/guides/sample_app_ug/ipv4_multicast.rst
@@ -51,6 +51,12 @@  The lookup method is the Four-byte Key (FBK) hash-based method.
 The lookup table is composed of pairs of destination IPv4 address (the FBK)
 and a port mask associated with that IPv4 address.
 
+.. note::
+
+    The max port mask supported in the given hash table is 0xf, so only first
+    four ports can be supported.
+    If using non-consecutive ports, use the destination IPv4 address accordingly.
+
 For convenience and simplicity, this sample application does not take IANA-assigned multicast addresses into account,
 but instead equates the last four bytes of the multicast group (that is, the last four bytes of the destination IP address)
 with the mask of ports to multicast packets to.