From 79d897db6b00a7d93777832c32157c043de461e3 Mon Sep 17 00:00:00 2001
From: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
Date: Sun, 6 Nov 2011 21:54:19 +0100
Subject: [PATCH] ep_pfilter.c: added rules to drop unused traffic
---
dev/ep_pfilter.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/dev/ep_pfilter.c b/dev/ep_pfilter.c
index 90b7ef651..5ff2d8b64 100644
--- a/dev/ep_pfilter.c
+++ b/dev/ep_pfilter.c
@@ -216,6 +216,9 @@ void pfilter_load()
- redirects broadcasts and PTP packets to the WR Core
- redirects unicasts addressed to self with ethertype 0xa0a0 to the external fabric */
+#define R_CLASS(x) (24 + x)
+#define R_DROP 23
+
void pfilter_init_default()
{
pfilter_new();
@@ -230,14 +233,13 @@ void pfilter_init_default()
pfilter_cmp(1, EP->MACL >> 16, 0xffff, AND, 3);
pfilter_cmp(2, EP->MACL & 0xffff, 0xffff, AND, 3); /* r3 = 1 when the packet is unicast to our own MAC */
pfilter_cmp(6, 0xa0a0, 0xffff, MOV, 4); /* r4 = 1 when ethertype = 0xa0a0 */
- pfilter_cmp(5, 0x88f8, 0xffff, MOV, 5); /* r5 = 1 when ethertype = PTPv2 */
-
- /* Classes 0-3 go to the minic, 4-7 - to the external fabric */
+ pfilter_cmp(6, 0x88f7, 0xffff, MOV, 5); /* r5 = 1 when ethertype = PTPv2 */
-// pfilter_logic3(R_CLASS(0), 2, AND, 5, OR, 3); // class 0: (PTP or broadcast)
-// pfilter_logic2(R_CLASS(1), 1, AND, 6); // class 1: minibone probes
+ pfilter_logic3(7, 3, AND, 4, OR, 5); /* r5 = PTP or etherbone */
+ pfilter_logic2(R_DROP, 7, NOT, 0); /* Neither PTP or etherbone? drop */
+ pfilter_logic2(R_CLASS(7), 3, AND, 4); // class 7: minibone unicasts
+ pfilter_logic2(R_CLASS(0), 5, MOV, 0); // class 7: minibone unicasts
- pfilter_logic2(30, 3, AND, 4); // class 7: minibone unicasts
pfilter_load();
}
\ No newline at end of file
--
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