linux-kernel - [PATCH] Added SIOCSMIIREG (mii write) support to intel igb driver

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Date:   Thu, 22 Jun 2017 15:23:56 +0200
From:   Michael Moese <michael.moese@....de>
To:     <jeffrey.t.kirsher@...el.com>
CC:     <intel-wired-lan@...ts.osuosl.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Andreas Werner <andreas.werner@....de>
Subject: [PATCH] Added SIOCSMIIREG (mii write) support to intel igb driver

From: Andreas Werner <andreas.werner@....de>

Signed-off-by: Andreas Werner <andreas.werner@....de>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 1cf74aa4ebd9..87e496eeefb1 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -7716,6 +7716,10 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 			return -EIO;
 		break;
 	case SIOCSMIIREG:
+		if (igb_write_phy_reg(&adapter->hw, data->reg_num & 0x1F,
+				      data->val_in))
+			return -EIO;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
-- 
2.12.3