From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Michael Chan" <mchan@broadcom.com>
Subject: [PATCH 2.6.12-rc2 2/3] tg3: Refresh hw index in tg3_rx()
Date: Mon, 25 Apr 2005 14:09:11 -0700
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Cc: "Arthur Kepner" <akepner@sgi.com>, netdev@oss.sgi.com
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This patch refreshes the hw rx producer in tg3_rx() so that additional
work posted by the hardware can be processed.

Signed-off-by: Michael Chan <mchan@broadcom.com>

diff -Nru c/drivers/net/tg3.c d/drivers/net/tg3.c
--- c/drivers/net/tg3.c	2005-04-25 12:32:44.000000000 -0700
+++ d/drivers/net/tg3.c	2005-04-25 12:39:46.000000000 -0700
@@ -2802,6 +2802,12 @@
 next_pkt_nopost:
 		sw_idx++;
 		sw_idx %= TG3_RX_RCB_RING_SIZE(tp);
+
+		/* Refresh hw_idx to see if there is new work */
+		if (sw_idx == hw_idx) {
+			hw_idx = tp->hw_status->idx[0].rx_producer;
+			rmb();
+		}
 	}
 
 	/* ACK the status ring. */