From f1d92fa8865c281cb7da31f2e3b62ece3f2f9ca1 Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Thu, 9 Jul 2009 15:52:04 +0100
Subject: [infiniband] Allow external QPN to differ from real QPN

Most IB hardware seems not to allow allocation of the genuine QPNs 0
and 1, so allow for the externally-visible QPN (as constructed and
parsed by ib_packet, where used) to differ from the real
hardware-allocated QPN.
---
 src/include/gpxe/infiniband.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/include')

diff --git a/src/include/gpxe/infiniband.h b/src/include/gpxe/infiniband.h
index 9c1f57a08..dacb13e4b 100644
--- a/src/include/gpxe/infiniband.h
+++ b/src/include/gpxe/infiniband.h
@@ -96,8 +96,15 @@ struct ib_queue_pair {
 	struct ib_device *ibdev;
 	/** List of queue pairs on this Infiniband device */
 	struct list_head list;
-	/** Queue Pair Number */
+	/** Queue pair number */
 	unsigned long qpn;
+	/** Externally-visible queue pair number
+	 *
+	 * This may differ from the real queue pair number (e.g. when
+	 * the HCA cannot use the management QPNs 0 and 1 as hardware
+	 * QPNs and needs to remap them).
+	 */
+	unsigned long ext_qpn;
 	/** Queue pair type */
 	enum ib_queue_pair_type type;
 	/** Queue key */
-- 
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