linux-kernel - [Intel-wired-lan] [PATCH v3 1/1] ixgbe: Correct BASE-BX10 compliance code

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Message-ID: <20241115141736.627079-1-tore@amundsen.org>
Date: Fri, 15 Nov 2024 14:17:36 +0000
From: Tore Amundsen <tore@...ndsen.org>
To: netdev@...r.kernel.org
Cc: pmenzel@...gen.mpg.de,
	andrew+netdev@...n.ch,
	anthony.l.nguyen@...el.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	ernesto@...tellotti.net,
	intel-wired-lan@...ts.osuosl.org,
	kuba@...nel.org,
	linux-kernel@...r.kernel.org,
	pabeni@...hat.com,
	przemyslaw.kitszel@...el.com,
	tore@...ndsen.org
Subject: [Intel-wired-lan] [PATCH v3 1/1] ixgbe: Correct BASE-BX10 compliance code

SFF-8472 (section 5.4 Transceiver Compliance Codes) defines bit 6 as
BASE-BX10. Bit 6 means a value of 0x40 (decimal 64).

The current value in the source code is 0x64, which appears to be a
mix-up of hex and decimal values. A value of 0x64 (binary 01100100)
incorrectly sets bit 2 (1000BASE-CX) and bit 5 (100BASE-FX) as well.

Fixes: 1b43e0d20f2d ("ixgbe: Add 1000BASE-BX support")
Signed-off-by: Tore Amundsen <tore@...ndsen.org>
Reviewed-by: Paul Menzel <pmenzel@...gen.mpg.de>
Acked-by: Ernesto Castellotti <ernesto@...tellotti.net>
---
v2: Added Fixes tag as requested by Paul Menzel.
v3: Correct Fixes tag format and add Acked-By.

 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
index 14aa2ca51f70..81179c60af4e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
@@ -40,7 +40,7 @@
 #define IXGBE_SFF_1GBASESX_CAPABLE		0x1
 #define IXGBE_SFF_1GBASELX_CAPABLE		0x2
 #define IXGBE_SFF_1GBASET_CAPABLE		0x8
-#define IXGBE_SFF_BASEBX10_CAPABLE		0x64
+#define IXGBE_SFF_BASEBX10_CAPABLE		0x40
 #define IXGBE_SFF_10GBASESR_CAPABLE		0x10
 #define IXGBE_SFF_10GBASELR_CAPABLE		0x20
 #define IXGBE_SFF_SOFT_RS_SELECT_MASK		0x8
-- 
2.43.0