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Date:	Wed, 07 Mar 2007 20:01:53 +0100
From:	Brice Goglin <brice@...i.com>
To:	Jeff Garzik <jeff@...zik.org>
CC:	netdev@...r.kernel.org
Subject: [PATCH 3/4] myri10ge: prevent 4k rdma on SGI TIOCE chipset

Do not use 4k rdma request on SGI TIOCE chipset since this
bridge does not support it.

Signed-off-by: Brice Goglin <brice@...i.com>
---
 drivers/net/myri10ge/myri10ge.c |    6 ++++++
 1 file changed, 6 insertions(+)

Index: linux-rc/drivers/net/myri10ge/myri10ge.c
===================================================================
--- linux-rc.orig/drivers/net/myri10ge/myri10ge.c	2007-03-07 08:51:07.000000000 +0100
+++ linux-rc/drivers/net/myri10ge/myri10ge.c	2007-03-07 08:51:47.000000000 +0100
@@ -2514,6 +2514,12 @@
 				 bridge->vendor, bridge->device);
 			mgp->tx.boundary = 4096;
 			mgp->fw_name = myri10ge_fw_aligned;
+		} else if (bridge &&
+			   bridge->vendor == PCI_VENDOR_ID_SGI &&
+			   bridge->device == 0x4002 /* TIOCE pcie-port */ ) {
+			/* this pcie bridge does not support 4K rdma request */
+			mgp->tx.boundary = 2048;
+			mgp->fw_name = myri10ge_fw_aligned;
 		}
 	} else {
 		if (myri10ge_force_firmware == 1) {


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