netdev - [PATCH 2/3] igb: make certain to power on optics for 82576 fiber nics

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 21 Jan 2009 00:33:48 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, jeff@...zik.org,
	Alexander Duyck <alexander.h.duyck@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [PATCH 2/3] igb: make certain to power on optics for 82576 fiber nics

From: Alexander Duyck <alexander.h.duyck@...el.com>

It appears that a step was missed in the initialization of 82576 fiber nics
that resulted in it not powering on the optics.

Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---

 drivers/net/igb/e1000_82575.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index f5e2e72..9b367ba 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -1103,6 +1103,13 @@ static s32 igb_setup_fiber_serdes_link_82575(struct e1000_hw *hw)
 	       E1000_CTRL_SWDPIN1;
 	wr32(E1000_CTRL, reg);
 
+	/* Power on phy for 82576 fiber adapters */
+	if (hw->mac.type == e1000_82576) {
+		reg = rd32(E1000_CTRL_EXT);
+		reg &= ~E1000_CTRL_EXT_SDP7_DATA;
+		wr32(E1000_CTRL_EXT, reg);
+	}
+
 	/* Set switch control to serdes energy detect */
 	reg = rd32(E1000_CONNSW);
 	reg |= E1000_CONNSW_ENRGSRC;

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