EBS: fix for promiscous mode being the default, now properly filtering RX by own or broadcast MAC

90d405a9 · Mathias Kreider · ba955bcb · 90d405a9
Commit 90d405a9 authored Nov 27, 2019 by Mathias Kreider
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eb_eth_rx.vhd hdl/eb_slave_core/eb_eth_rx.vhd +3 -0

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--- a/hdl/eb_slave_core/eb_eth_rx.vhd
+++ b/hdl/eb_slave_core/eb_eth_rx.vhd
@@ -112,6 +112,9 @@ begin
        r_state      <= S_WAIT;
        r_state_next <= S_ETHERNET;
        r_count      <= f_step(c_eth_len);
+      elsif snk_i.stb = '1' and s_stall = '0' and snk_i.adr = c_WRF_STATUS and snk_i.dat(15 downto 8) /= x"80" then
+        -- if this isn't tagged as WRF packet class 7 (0x80), it's neither a broadcast, nor our own mac. Drop it.
+        r_state <= S_DROP;
      elsif snk_i.stb = '1' and s_stall = '0' and snk_i.adr = c_WRF_DATA then
      
        -- defaults