From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next PATCH 3/3] e1000e: Expose MDI-X status via ethtool change Date: Mon, 08 Jun 2009 17:28:54 -0700 Message-ID: <20090609002854.4909.69332.stgit@localhost.localdomain> References: <20090609002817.4909.44004.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, gospo@redhat.com, Chaitanya Lala , Arthur Jones , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from qmta03.emeryville.ca.mail.comcast.net ([76.96.30.32]:43959 "EHLO QMTA03.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753832AbZFIA3M (ORCPT ); Mon, 8 Jun 2009 20:29:12 -0400 In-Reply-To: <20090609002817.4909.44004.stgit@localhost.localdomain> Sender: netdev-owner@vger.kernel.org List-ID: From: Chaitanya Lala Ethtool is a standard way of getting information about ethernet interfaces. We enhance ethtool kernel interface & e1000e to make the MDI-X status readable via ethtool in userspace. Signed-off-by: Chaitanya Lala Signed-off-by: Arthur Jones Signed-off-by: Jeff Kirsher --- drivers/net/e1000e/ethtool.c | 9 +++++++++ include/linux/ethtool.h | 8 +++++++- 2 files changed, 16 insertions(+), 1 deletions(-) diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 3d64356..1bf4d2a 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -167,6 +167,15 @@ static int e1000_get_settings(struct net_device *netdev, ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) || hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE; + + /* MDI-X => 2; MDI =>1; Invalid =>0 */ + if ((hw->phy.media_type == e1000_media_type_copper) && + !hw->mac.get_link_status) + ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : + ETH_TP_MDI; + else + ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID; + return 0; } diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 380b042..9b660bd 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -30,7 +30,8 @@ struct ethtool_cmd { __u32 maxtxpkt; /* Tx pkts before generating tx int */ __u32 maxrxpkt; /* Rx pkts before generating rx int */ __u16 speed_hi; - __u16 reserved2; + __u8 eth_tp_mdix; + __u8 reserved2; __u32 lp_advertising; /* Features the link partner advertises */ __u32 reserved[2]; }; @@ -632,6 +633,11 @@ struct ethtool_ops { #define AUTONEG_DISABLE 0x00 #define AUTONEG_ENABLE 0x01 +/* Mode MDI or MDI-X */ +#define ETH_TP_MDI_INVALID 0x00 +#define ETH_TP_MDI 0x01 +#define ETH_TP_MDI_X 0x02 + /* Wake-On-Lan options. */ #define WAKE_PHY (1 << 0) #define WAKE_UCAST (1 << 1)