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path: root/drivers/net/enic/vnic_wq.h
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Diffstat (limited to 'drivers/net/enic/vnic_wq.h')
-rw-r--r--drivers/net/enic/vnic_wq.h16
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/net/enic/vnic_wq.h b/drivers/net/enic/vnic_wq.h
index 9c34d41a887..94ac4621acc 100644
--- a/drivers/net/enic/vnic_wq.h
+++ b/drivers/net/enic/vnic_wq.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
* Copyright 2007 Nuova Systems, Inc. All rights reserved.
*
* This program is free software; you may redistribute it and/or modify
@@ -60,12 +60,16 @@ struct vnic_wq_buf {
void *desc;
};
-/* Break the vnic_wq_buf allocations into blocks of 64 entries */
-#define VNIC_WQ_BUF_BLK_ENTRIES 64
-#define VNIC_WQ_BUF_BLK_SZ \
- (VNIC_WQ_BUF_BLK_ENTRIES * sizeof(struct vnic_wq_buf))
+/* Break the vnic_wq_buf allocations into blocks of 32/64 entries */
+#define VNIC_WQ_BUF_MIN_BLK_ENTRIES 32
+#define VNIC_WQ_BUF_DFLT_BLK_ENTRIES 64
+#define VNIC_WQ_BUF_BLK_ENTRIES(entries) \
+ ((unsigned int)((entries < VNIC_WQ_BUF_DFLT_BLK_ENTRIES) ? \
+ VNIC_WQ_BUF_MIN_BLK_ENTRIES : VNIC_WQ_BUF_DFLT_BLK_ENTRIES))
+#define VNIC_WQ_BUF_BLK_SZ(entries) \
+ (VNIC_WQ_BUF_BLK_ENTRIES(entries) * sizeof(struct vnic_wq_buf))
#define VNIC_WQ_BUF_BLKS_NEEDED(entries) \
- DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES)
+ DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES(entries))
#define VNIC_WQ_BUF_BLKS_MAX VNIC_WQ_BUF_BLKS_NEEDED(4096)
struct vnic_wq {