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authorBruce Allan <bruce.w.allan@intel.com>2006-12-15 10:39:45 +0100
committerJeff Garzik <jeff@garzik.org>2006-12-26 15:51:30 -0500
commit018ea44ef1eade417296c4a57afe3cd963268433 (patch)
tree1be60d1e3f76f49c7675da5c314576ff601db644 /drivers/net/e1000/e1000_hw.h
parentd89b6c6750e7d7527603b573ec60ba787f5c04a6 (diff)
downloadlinux-018ea44ef1eade417296c4a57afe3cd963268433.tar.gz
[PATCH] e1000: Fix PBA allocation calculations
Assign the PBA to be large enough to contain at least 2 jumbo frames on all adapters. This dramatically increases performance on several adapters and fixes TX performance degradation issues where the PBA was misallocated in the old algorithm. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/e1000/e1000_hw.h')
-rw-r--r--drivers/net/e1000/e1000_hw.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h
index f4d01e169c48fa..15b8625c40c149 100644
--- a/drivers/net/e1000/e1000_hw.h
+++ b/drivers/net/e1000/e1000_hw.h
@@ -2422,6 +2422,7 @@ struct e1000_host_command_info {
#define E1000_PBA_8K 0x0008 /* 8KB, default Rx allocation */
#define E1000_PBA_12K 0x000C /* 12KB, default Rx allocation */
#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */
+#define E1000_PBA_20K 0x0014
#define E1000_PBA_22K 0x0016
#define E1000_PBA_24K 0x0018
#define E1000_PBA_30K 0x001E