diff mbox

[1/3] mdio: Add 10GBASE-T SNR register definition

Message ID 1242403452.3262.0.camel@achroite
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Ben Hutchings May 15, 2009, 4:04 p.m. UTC 
These do not have an in-kernel user but may be useful to user-space.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 include/linux/mdio.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

Comments

David Miller May 18, 2009, 4:06 a.m. UTC | #1 
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Fri, 15 May 2009 17:04:12 +0100

> These do not have an in-kernel user but may be useful to user-space.
> 
> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

Applied to net-next-2.6
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index 26b4eb3..825f1e2 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -46,6 +46,8 @@ 
 
 /* Media-dependent registers. */
 #define MDIO_PMA_10GBT_TXPWR	131	/* 10GBASE-T TX power control */
+#define MDIO_PMA_10GBT_SNR	133	/* 10GBASE-T SNR margin, lane A.
+					 * Lanes B-D are numbered 134-136. */
 #define MDIO_PMA_10GBR_FECABLE	170	/* 10GBASE-R FEC ability */
 #define MDIO_PCS_10GBX_STAT1	24	/* 10GBASE-X PCS status 1 */
 #define MDIO_PCS_10GBRT_STAT1	32	/* 10GBASE-R/-T PCS status 1 */
@@ -188,6 +190,11 @@ 
 /* PMA 10GBASE-T TX power register. */
 #define MDIO_PMA_10GBT_TXPWR_SHORT	0x0001	/* Short-reach mode */
 
+/* PMA 10GBASE-T SNR registers. */
+/* Value is SNR margin in dB, clamped to range [-127, 127], plus 0x8000. */
+#define MDIO_PMA_10GBT_SNR_BIAS		0x8000
+#define MDIO_PMA_10GBT_SNR_MAX		127
+
 /* PMA 10GBASE-R FEC ability register. */
 #define MDIO_PMA_10GBR_FECABLE_ABLE	0x0001	/* FEC ability */
 #define MDIO_PMA_10GBR_FECABLE_ERRABLE	0x0002	/* FEC error indic. ability */