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[Commit-gnuradio] r7178 - usrp2/trunk/firmware/lib
From: |
eb |
Subject: |
[Commit-gnuradio] r7178 - usrp2/trunk/firmware/lib |
Date: |
Fri, 14 Dec 2007 11:39:05 -0700 (MST) |
Author: eb
Date: 2007-12-14 11:39:04 -0700 (Fri, 14 Dec 2007)
New Revision: 7178
Modified:
usrp2/trunk/firmware/lib/eth_mac.c
Log:
revised low and high water marks in eth mac
Modified: usrp2/trunk/firmware/lib/eth_mac.c
===================================================================
--- usrp2/trunk/firmware/lib/eth_mac.c 2007-12-14 17:37:39 UTC (rev 7177)
+++ usrp2/trunk/firmware/lib/eth_mac.c 2007-12-14 18:39:04 UTC (rev 7178)
@@ -66,10 +66,12 @@
eth_mac->tx_pause_en = 1; // pay attn to pause frames sent to us
// set rx flow control high and low water marks
- unsigned int lwmark = (2*2048 + 64)/4; // 2 * 2048-byte frames + 1 * 64-byte
pause frame
- eth_mac->fc_lwmark = lwmark;
- eth_mac->fc_hwmark = lwmark + 2048/4; // plus a 2048-byte frame
+ // unsigned int lwmark = (2*2048 + 64)/4; // 2 * 2048-byte frames + 1 *
64-byte pause frame
+ // eth_mac->fc_hwmark = lwmark + 2048/4; // plus a 2048-byte frame
+ eth_mac->fc_lwmark = 400; // there is currently 1024 lines in the
fifo
+ eth_mac->fc_hwmark = 800;
+
eth_mac->pause_quanta_set = 38; // a bit more than 1 max frame
16kb/512 + fudge
eth_mac->pause_frame_send_en = 1; // enable sending pause frames
}
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