From 03860b7d876b749a737581697c6aecdddfdb012a Mon Sep 17 00:00:00 2001
From: Salvatore Di Girolamo <sdigirolamo@nvidia.com>
Date: Wed, 23 Nov 2022 08:17:28 +0100
Subject: [PATCH] Clearing eom_seen when freeing up the FMQ
---
hw/src/pkt_scheduler/mpq_engine.sv | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/hw/src/pkt_scheduler/mpq_engine.sv b/hw/src/pkt_scheduler/mpq_engine.sv
index 95c7af7..fd4551a 100644
--- a/hw/src/pkt_scheduler/mpq_engine.sv
+++ b/hw/src/pkt_scheduler/mpq_engine.sv
@@ -482,7 +482,19 @@ module mpq_fsm #(
endcase
end
- assign mpq_o.eom_seen = mpq_q.eom_seen || (her_new_i && her_new_is_eom_i);
+ always_comb begin
+ mpq_o.eom_seen = mpq_q.eom_seen;
+
+ // set it if we see the EOM
+ if (her_new_i && her_new_is_eom_i) begin
+ mpq_o.eom_seen = 1;
+ end
+
+ // clear it if we are transitioning to Free state
+ if (mpq_o.state == Free) begin
+ mpq_o.eom_seen = 0;
+ end
+ end
//update state
always_comb begin //H-P-C case