From 405f8a0ec71c869a374066cce22f88670d27a739 Mon Sep 17 00:00:00 2001 From: hayeswang Date: Thu, 9 Oct 2014 18:00:24 +0800 Subject: r8152: autoresume before setting feature Resume the device before setting the feature. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 5cfd414b9a3e..c5afe8c85cbc 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -2145,6 +2145,11 @@ static int rtl8152_set_features(struct net_device *dev, { netdev_features_t changed = features ^ dev->features; struct r8152 *tp = netdev_priv(dev); + int ret; + + ret = usb_autopm_get_interface(tp->intf); + if (ret < 0) + goto out; if (changed & NETIF_F_HW_VLAN_CTAG_RX) { if (features & NETIF_F_HW_VLAN_CTAG_RX) @@ -2153,7 +2158,10 @@ static int rtl8152_set_features(struct net_device *dev, rtl_rx_vlan_en(tp, false); } - return 0; + usb_autopm_put_interface(tp->intf); + +out: + return ret; } #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) -- cgit v1.2.3 From 8d4a4d7286eb6fc783149de44aa90de4bc72a9fe Mon Sep 17 00:00:00 2001 From: hayeswang Date: Thu, 9 Oct 2014 18:00:25 +0800 Subject: r8152: adjust usb_autopm_xxx Add usb_autopm_xxx for rtl8152_get_settings() ,and remove usb_autopm_xxx from read_mii_word() and write_mii_word(). Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index c5afe8c85cbc..1d2fc8effda6 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -942,15 +942,8 @@ static int read_mii_word(struct net_device *netdev, int phy_id, int reg) if (phy_id != R8152_PHY_ID) return -EINVAL; - ret = usb_autopm_get_interface(tp->intf); - if (ret < 0) - goto out; - ret = r8152_mdio_read(tp, reg); - usb_autopm_put_interface(tp->intf); - -out: return ret; } @@ -965,12 +958,7 @@ void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val) if (phy_id != R8152_PHY_ID) return; - if (usb_autopm_get_interface(tp->intf) < 0) - return; - r8152_mdio_write(tp, reg, val); - - usb_autopm_put_interface(tp->intf); } static int @@ -3290,11 +3278,21 @@ static int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd) { struct r8152 *tp = netdev_priv(netdev); + int ret; if (!tp->mii.mdio_read) return -EOPNOTSUPP; - return mii_ethtool_gset(&tp->mii, cmd); + ret = usb_autopm_get_interface(tp->intf); + if (ret < 0) + goto out; + + ret = mii_ethtool_gset(&tp->mii, cmd); + + usb_autopm_put_interface(tp->intf); + +out: + return ret; } static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -- cgit v1.2.3 From b54032736dbba2ae18995b930d0176bd8b0386c8 Mon Sep 17 00:00:00 2001 From: hayeswang Date: Thu, 9 Oct 2014 18:00:26 +0800 Subject: r8152: add mutex for hw settings Use the mutex to avoid the settings are interrupted by other ones. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 63 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 1d2fc8effda6..864159eb744e 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -26,7 +26,7 @@ #include /* Version Information */ -#define DRIVER_VERSION "v1.06.1 (2014/10/01)" +#define DRIVER_VERSION "v1.07.0 (2014/10/09)" #define DRIVER_AUTHOR "Realtek linux nic maintainers " #define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters" #define MODULENAME "r8152" @@ -566,6 +566,7 @@ struct r8152 { spinlock_t rx_lock, tx_lock; struct delayed_work schedule; struct mii_if_info mii; + struct mutex control; /* use for hw setting */ struct rtl_ops { void (*init)(struct r8152 *); @@ -977,12 +978,16 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p) if (ret < 0) goto out1; + mutex_lock(&tp->control); + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data); ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out1: return ret; @@ -2139,6 +2144,8 @@ static int rtl8152_set_features(struct net_device *dev, if (ret < 0) goto out; + mutex_lock(&tp->control); + if (changed & NETIF_F_HW_VLAN_CTAG_RX) { if (features & NETIF_F_HW_VLAN_CTAG_RX) rtl_rx_vlan_en(tp, true); @@ -2146,6 +2153,8 @@ static int rtl8152_set_features(struct net_device *dev, rtl_rx_vlan_en(tp, false); } + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out: @@ -2847,6 +2856,11 @@ static void rtl_work_func_t(struct work_struct *work) if (test_bit(RTL8152_UNPLUG, &tp->flags)) goto out1; + if (!mutex_trylock(&tp->control)) { + schedule_delayed_work(&tp->schedule, 0); + goto out1; + } + if (test_bit(RTL8152_LINK_CHG, &tp->flags)) set_carrier(tp); @@ -2862,6 +2876,8 @@ static void rtl_work_func_t(struct work_struct *work) if (test_bit(PHY_RESET, &tp->flags)) rtl_phy_reset(tp); + mutex_unlock(&tp->control); + out1: usb_autopm_put_interface(tp->intf); } @@ -2881,6 +2897,8 @@ static int rtl8152_open(struct net_device *netdev) goto out; } + mutex_lock(&tp->control); + /* The WORK_ENABLE may be set when autoresume occurs */ if (test_bit(WORK_ENABLE, &tp->flags)) { clear_bit(WORK_ENABLE, &tp->flags); @@ -2909,6 +2927,8 @@ static int rtl8152_open(struct net_device *netdev) free_all_mem(tp); } + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out: @@ -2929,6 +2949,8 @@ static int rtl8152_close(struct net_device *netdev) if (res < 0) { rtl_drop_queued_tx(tp); } else { + mutex_lock(&tp->control); + /* The autosuspend may have been enabled and wouldn't * be disable when autoresume occurs, because the * netif_running() would be false. @@ -2941,6 +2963,9 @@ static int rtl8152_close(struct net_device *netdev) tasklet_disable(&tp->tl); tp->rtl_ops.down(tp); tasklet_enable(&tp->tl); + + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); } @@ -3165,6 +3190,8 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message) { struct r8152 *tp = usb_get_intfdata(intf); + mutex_lock(&tp->control); + if (PMSG_IS_AUTO(message)) set_bit(SELECTIVE_SUSPEND, &tp->flags); else @@ -3184,6 +3211,8 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message) tasklet_enable(&tp->tl); } + mutex_unlock(&tp->control); + return 0; } @@ -3191,6 +3220,8 @@ static int rtl8152_resume(struct usb_interface *intf) { struct r8152 *tp = usb_get_intfdata(intf); + mutex_lock(&tp->control); + if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) { tp->rtl_ops.init(tp); netif_device_attach(tp->netdev); @@ -3216,6 +3247,8 @@ static int rtl8152_resume(struct usb_interface *intf) usb_submit_urb(tp->intr_urb, GFP_KERNEL); } + mutex_unlock(&tp->control); + return 0; } @@ -3226,9 +3259,13 @@ static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) if (usb_autopm_get_interface(tp->intf) < 0) return; + mutex_lock(&tp->control); + wol->supported = WAKE_ANY; wol->wolopts = __rtl_get_wol(tp); + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); } @@ -3241,9 +3278,13 @@ static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) if (ret < 0) goto out_set_wol; + mutex_lock(&tp->control); + __rtl_set_wol(tp, wol->wolopts); tp->saved_wolopts = wol->wolopts & WAKE_ANY; + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out_set_wol: @@ -3287,8 +3328,12 @@ int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd) if (ret < 0) goto out; + mutex_lock(&tp->control); + ret = mii_ethtool_gset(&tp->mii, cmd); + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out: @@ -3304,8 +3349,12 @@ static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) if (ret < 0) goto out; + mutex_lock(&tp->control); + ret = rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex); + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out: @@ -3465,8 +3514,12 @@ rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata) if (ret < 0) goto out; + mutex_lock(&tp->control); + ret = tp->rtl_ops.eee_get(tp, edata); + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out: @@ -3483,10 +3536,14 @@ rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata) if (ret < 0) goto out; + mutex_lock(&tp->control); + ret = tp->rtl_ops.eee_set(tp, edata); if (!ret) ret = mii_nway_restart(&tp->mii); + mutex_unlock(&tp->control); + usb_autopm_put_interface(tp->intf); out: @@ -3528,7 +3585,9 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) break; case SIOCGMIIREG: + mutex_lock(&tp->control); data->val_out = r8152_mdio_read(tp, data->reg_num); + mutex_unlock(&tp->control); break; case SIOCSMIIREG: @@ -3536,7 +3595,9 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) res = -EPERM; break; } + mutex_lock(&tp->control); r8152_mdio_write(tp, data->reg_num, data->val_in); + mutex_unlock(&tp->control); break; default: @@ -3729,6 +3790,7 @@ static int rtl8152_probe(struct usb_interface *intf, goto out; tasklet_init(&tp->tl, bottom_half, (unsigned long)tp); + mutex_init(&tp->control); INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t); netdev->netdev_ops = &rtl8152_netdev_ops; -- cgit v1.2.3