From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Yuval Mintz" Subject: [net-next PATCH 1/3] Added kernel support in EEE Ethtool commands Date: Tue, 5 Jun 2012 09:39:00 +0300 Message-ID: <1338878342-24586-2-git-send-email-yuvalmin@broadcom.com> References: <1338878342-24586-1-git-send-email-yuvalmin@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: eilong@broadcom.com, peppe.cavallaro@st.com, "Yuval Mintz" To: davem@davemloft.net, netdev@vger.kernel.org Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:3480 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751575Ab2FEGkq (ORCPT ); Tue, 5 Jun 2012 02:40:46 -0400 In-Reply-To: <1338878342-24586-1-git-send-email-yuvalmin@broadcom.com> Sender: netdev-owner@vger.kernel.org List-ID: This patch extends the kernel's ethtool interface by adding support for 2 new EEE commands - get_eee and set_eee. Thanks goes to Giuseppe Cavallaro for his original patch adding this support. Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein --- include/linux/ethtool.h | 19 +++++++++++++++++++ net/core/ethtool.c | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+), 0 deletions(-) diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index e17fa71..527de4c 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -136,6 +136,19 @@ struct ethtool_eeprom { __u8 data[0]; }; +/* EEE settings */ +struct ethtool_eee { + __u32 cmd; + __u32 supported; + __u32 advertised; + __u32 lp_advertised; + __u32 eee_active; + __u32 eee_enabled; + __u32 tx_lpi_enabled; + __u32 tx_lpi_timer; + __u32 reserved[2]; +}; + /** * struct ethtool_modinfo - plugin module eeprom information * @cmd: %ETHTOOL_GMODULEINFO @@ -945,6 +958,8 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings) * @get_module_info: Get the size and type of the eeprom contained within * a plug-in module. * @get_module_eeprom: Get the eeprom information from the plug-in module + * @get_eee: Get Energy-Efficient (EEE) supported and status. + * @set_eee: Set EEE status (enable/disable) as well as LPI timers. * * All operations are optional (i.e. the function pointer may be set * to %NULL) and callers must take this into account. Callers must @@ -1011,6 +1026,8 @@ struct ethtool_ops { struct ethtool_modinfo *); int (*get_module_eeprom)(struct net_device *, struct ethtool_eeprom *, u8 *); + int (*get_eee)(struct net_device *, struct ethtool_eee *); + int (*set_eee)(struct net_device *, struct ethtool_eee *); }; @@ -1089,6 +1106,8 @@ struct ethtool_ops { #define ETHTOOL_GET_TS_INFO 0x00000041 /* Get time stamping and PHC info */ #define ETHTOOL_GMODULEINFO 0x00000042 /* Get plug-in module information */ #define ETHTOOL_GMODULEEEPROM 0x00000043 /* Get plug-in module eeprom */ +#define ETHTOOL_GEEE 0x00000044 /* Get EEE settings */ +#define ETHTOOL_SEEE 0x00000045 /* Set EEE settings */ /* compatibility with older code */ #define SPARC_ETH_GSET ETHTOOL_GSET diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 9c2afb4..7940bd3 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -729,6 +729,34 @@ static int ethtool_set_wol(struct net_device *dev, char __user *useraddr) return dev->ethtool_ops->set_wol(dev, &wol); } +static int ethtool_get_eee(struct net_device *dev, char __user *useraddr) +{ + struct ethtool_eee edata; + + if (!dev->ethtool_ops->get_eee) + return -EOPNOTSUPP; + + dev->ethtool_ops->get_eee(dev, &edata); + + if (copy_to_user(useraddr, &edata, sizeof(edata))) + return -EFAULT; + + return 0; +} + +static int ethtool_set_eee(struct net_device *dev, char __user *useraddr) +{ + struct ethtool_eee edata; + + if (!dev->ethtool_ops->get_eee) + return -EOPNOTSUPP; + + if (copy_from_user(&edata, useraddr, sizeof(edata))) + return -EFAULT; + + return dev->ethtool_ops->set_eee(dev, &edata); +} + static int ethtool_nway_reset(struct net_device *dev) { if (!dev->ethtool_ops->nway_reset) @@ -1471,6 +1499,12 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) rc = ethtool_set_value_void(dev, useraddr, dev->ethtool_ops->set_msglevel); break; + case ETHTOOL_GEEE: + rc = ethtool_get_eee(dev, useraddr); + break; + case ETHTOOL_SEEE: + rc = ethtool_set_eee(dev, useraddr); + break; case ETHTOOL_NWAY_RST: rc = ethtool_nway_reset(dev); break; -- 1.7.9.rc2