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path: root/drivers/net/usb/r8152.c
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Diffstat (limited to 'drivers/net/usb/r8152.c')
-rw-r--r--drivers/net/usb/r8152.c165
1 files changed, 92 insertions, 73 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index d9427ca3dba7..d1f78c2c97aa 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -25,12 +25,13 @@
#include <uapi/linux/mdio.h>
#include <linux/mdio.h>
#include <linux/usb/cdc.h>
+#include <linux/suspend.h>
/* Information for net-next */
#define NETNEXT_VERSION "08"
/* Information for net */
-#define NET_VERSION "2"
+#define NET_VERSION "3"
#define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION
#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
@@ -604,6 +605,9 @@ struct r8152 {
struct delayed_work schedule;
struct mii_if_info mii;
struct mutex control; /* use for hw setting */
+#ifdef CONFIG_PM_SLEEP
+ struct notifier_block pm_notifier;
+#endif
struct rtl_ops {
void (*init)(struct r8152 *);
@@ -1938,7 +1942,6 @@ static void _rtl8152_set_rx_mode(struct net_device *netdev)
__le32 tmp[2];
u32 ocp_data;
- clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
netif_stop_queue(netdev);
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
ocp_data &= ~RCR_ACPT_ALL;
@@ -1986,7 +1989,7 @@ rtl8152_features_check(struct sk_buff *skb, struct net_device *dev,
int offset = skb_transport_offset(skb);
if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset)
- features &= ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
+ features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
features &= ~NETIF_F_GSO_MASK;
@@ -2424,8 +2427,6 @@ static void rtl_phy_reset(struct r8152 *tp)
u16 data;
int i;
- clear_bit(PHY_RESET, &tp->flags);
-
data = r8152_mdio_read(tp, MII_BMCR);
/* don't reset again before the previous one complete */
@@ -2455,23 +2456,23 @@ static void r8153_teredo_off(struct r8152 *tp)
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TEREDO_TIMER, 0);
}
-static void r8152b_disable_aldps(struct r8152 *tp)
-{
- ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA | DIS_SDSAVE);
- msleep(20);
-}
-
-static inline void r8152b_enable_aldps(struct r8152 *tp)
+static void r8152_aldps_en(struct r8152 *tp, bool enable)
{
- ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
- LINKENA | DIS_SDSAVE);
+ if (enable) {
+ ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
+ LINKENA | DIS_SDSAVE);
+ } else {
+ ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA |
+ DIS_SDSAVE);
+ msleep(20);
+ }
}
static void rtl8152_disable(struct r8152 *tp)
{
- r8152b_disable_aldps(tp);
+ r8152_aldps_en(tp, false);
rtl_disable(tp);
- r8152b_enable_aldps(tp);
+ r8152_aldps_en(tp, true);
}
static void r8152b_hw_phy_cfg(struct r8152 *tp)
@@ -2783,30 +2784,26 @@ static void r8153_enter_oob(struct r8152 *tp)
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
}
-static void r8153_disable_aldps(struct r8152 *tp)
+static void r8153_aldps_en(struct r8152 *tp, bool enable)
{
u16 data;
data = ocp_reg_read(tp, OCP_POWER_CFG);
- data &= ~EN_ALDPS;
- ocp_reg_write(tp, OCP_POWER_CFG, data);
- msleep(20);
-}
-
-static void r8153_enable_aldps(struct r8152 *tp)
-{
- u16 data;
-
- data = ocp_reg_read(tp, OCP_POWER_CFG);
- data |= EN_ALDPS;
- ocp_reg_write(tp, OCP_POWER_CFG, data);
+ if (enable) {
+ data |= EN_ALDPS;
+ ocp_reg_write(tp, OCP_POWER_CFG, data);
+ } else {
+ data &= ~EN_ALDPS;
+ ocp_reg_write(tp, OCP_POWER_CFG, data);
+ msleep(20);
+ }
}
static void rtl8153_disable(struct r8152 *tp)
{
- r8153_disable_aldps(tp);
+ r8153_aldps_en(tp, false);
rtl_disable(tp);
- r8153_enable_aldps(tp);
+ r8153_aldps_en(tp, true);
usb_enable_lpm(tp->udev);
}
@@ -2884,10 +2881,9 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
r8152_mdio_write(tp, MII_ADVERTISE, anar);
r8152_mdio_write(tp, MII_BMCR, bmcr);
- if (test_bit(PHY_RESET, &tp->flags)) {
+ if (test_and_clear_bit(PHY_RESET, &tp->flags)) {
int i;
- clear_bit(PHY_RESET, &tp->flags);
for (i = 0; i < 50; i++) {
msleep(20);
if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
@@ -2896,7 +2892,6 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
}
out:
-
return ret;
}
@@ -2905,9 +2900,9 @@ static void rtl8152_up(struct r8152 *tp)
if (test_bit(RTL8152_UNPLUG, &tp->flags))
return;
- r8152b_disable_aldps(tp);
+ r8152_aldps_en(tp, false);
r8152b_exit_oob(tp);
- r8152b_enable_aldps(tp);
+ r8152_aldps_en(tp, true);
}
static void rtl8152_down(struct r8152 *tp)
@@ -2918,9 +2913,9 @@ static void rtl8152_down(struct r8152 *tp)
}
r8152_power_cut_en(tp, false);
- r8152b_disable_aldps(tp);
+ r8152_aldps_en(tp, false);
r8152b_enter_oob(tp);
- r8152b_enable_aldps(tp);
+ r8152_aldps_en(tp, true);
}
static void rtl8153_up(struct r8152 *tp)
@@ -2929,9 +2924,9 @@ static void rtl8153_up(struct r8152 *tp)
return;
r8153_u1u2en(tp, false);
- r8153_disable_aldps(tp);
+ r8153_aldps_en(tp, false);
r8153_first_init(tp);
- r8153_enable_aldps(tp);
+ r8153_aldps_en(tp, true);
r8153_u2p3en(tp, true);
r8153_u1u2en(tp, true);
usb_enable_lpm(tp->udev);
@@ -2947,9 +2942,9 @@ static void rtl8153_down(struct r8152 *tp)
r8153_u1u2en(tp, false);
r8153_u2p3en(tp, false);
r8153_power_cut_en(tp, false);
- r8153_disable_aldps(tp);
+ r8153_aldps_en(tp, false);
r8153_enter_oob(tp);
- r8153_enable_aldps(tp);
+ r8153_aldps_en(tp, true);
}
static bool rtl8152_in_nway(struct r8152 *tp)
@@ -2983,7 +2978,6 @@ static void set_carrier(struct r8152 *tp)
struct net_device *netdev = tp->netdev;
u8 speed;
- clear_bit(RTL8152_LINK_CHG, &tp->flags);
speed = rtl8152_get_speed(tp);
if (speed & LINK_STATUS) {
@@ -3026,20 +3020,18 @@ static void rtl_work_func_t(struct work_struct *work)
goto out1;
}
- if (test_bit(RTL8152_LINK_CHG, &tp->flags))
+ if (test_and_clear_bit(RTL8152_LINK_CHG, &tp->flags))
set_carrier(tp);
- if (test_bit(RTL8152_SET_RX_MODE, &tp->flags))
+ if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags))
_rtl8152_set_rx_mode(tp->netdev);
/* don't schedule napi before linking */
- if (test_bit(SCHEDULE_NAPI, &tp->flags) &&
- netif_carrier_ok(tp->netdev)) {
- clear_bit(SCHEDULE_NAPI, &tp->flags);
+ if (test_and_clear_bit(SCHEDULE_NAPI, &tp->flags) &&
+ netif_carrier_ok(tp->netdev))
napi_schedule(&tp->napi);
- }
- if (test_bit(PHY_RESET, &tp->flags))
+ if (test_and_clear_bit(PHY_RESET, &tp->flags))
rtl_phy_reset(tp);
mutex_unlock(&tp->control);
@@ -3048,6 +3040,33 @@ out1:
usb_autopm_put_interface(tp->intf);
}
+#ifdef CONFIG_PM_SLEEP
+static int rtl_notifier(struct notifier_block *nb, unsigned long action,
+ void *data)
+{
+ struct r8152 *tp = container_of(nb, struct r8152, pm_notifier);
+
+ switch (action) {
+ case PM_HIBERNATION_PREPARE:
+ case PM_SUSPEND_PREPARE:
+ usb_autopm_get_interface(tp->intf);
+ break;
+
+ case PM_POST_HIBERNATION:
+ case PM_POST_SUSPEND:
+ usb_autopm_put_interface(tp->intf);
+ break;
+
+ case PM_POST_RESTORE:
+ case PM_RESTORE_PREPARE:
+ default:
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+#endif
+
static int rtl8152_open(struct net_device *netdev)
{
struct r8152 *tp = netdev_priv(netdev);
@@ -3067,17 +3086,6 @@ static int rtl8152_open(struct net_device *netdev)
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);
- usb_kill_urb(tp->intr_urb);
- cancel_delayed_work_sync(&tp->schedule);
-
- /* disable the tx/rx, if the workqueue has enabled them. */
- if (netif_carrier_ok(netdev))
- tp->rtl_ops.disable(tp);
- }
-
tp->rtl_ops.up(tp);
rtl8152_set_speed(tp, AUTONEG_ENABLE,
@@ -3101,6 +3109,10 @@ static int rtl8152_open(struct net_device *netdev)
mutex_unlock(&tp->control);
usb_autopm_put_interface(tp->intf);
+#ifdef CONFIG_PM_SLEEP
+ tp->pm_notifier.notifier_call = rtl_notifier;
+ register_pm_notifier(&tp->pm_notifier);
+#endif
out:
return res;
@@ -3111,6 +3123,9 @@ static int rtl8152_close(struct net_device *netdev)
struct r8152 *tp = netdev_priv(netdev);
int res = 0;
+#ifdef CONFIG_PM_SLEEP
+ unregister_pm_notifier(&tp->pm_notifier);
+#endif
napi_disable(&tp->napi);
clear_bit(WORK_ENABLE, &tp->flags);
usb_kill_urb(tp->intr_urb);
@@ -3124,12 +3139,6 @@ static int rtl8152_close(struct net_device *netdev)
} 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.
- */
- rtl_runtime_suspend_enable(tp, false);
-
tp->rtl_ops.down(tp);
mutex_unlock(&tp->control);
@@ -3255,7 +3264,7 @@ static void r8152b_init(struct r8152 *tp)
if (test_bit(RTL8152_UNPLUG, &tp->flags))
return;
- r8152b_disable_aldps(tp);
+ r8152_aldps_en(tp, false);
if (tp->version == RTL_VER_01) {
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
@@ -3277,7 +3286,7 @@ static void r8152b_init(struct r8152 *tp)
ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data);
r8152b_enable_eee(tp);
- r8152b_enable_aldps(tp);
+ r8152_aldps_en(tp, true);
r8152b_enable_fc(tp);
rtl_tally_reset(tp);
@@ -3295,7 +3304,7 @@ static void r8153_init(struct r8152 *tp)
if (test_bit(RTL8152_UNPLUG, &tp->flags))
return;
- r8153_disable_aldps(tp);
+ r8153_aldps_en(tp, false);
r8153_u1u2en(tp, false);
for (i = 0; i < 500; i++) {
@@ -3384,7 +3393,7 @@ static void r8153_init(struct r8152 *tp)
EEE_SPDWN_EN);
r8153_enable_eee(tp);
- r8153_enable_aldps(tp);
+ r8153_aldps_en(tp, true);
r8152b_enable_fc(tp);
rtl_tally_reset(tp);
r8153_u2p3en(tp, true);
@@ -3512,7 +3521,7 @@ static int rtl8152_resume(struct usb_interface *intf)
netif_device_attach(tp->netdev);
}
- if (netif_running(tp->netdev)) {
+ if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
rtl_runtime_suspend_enable(tp, false);
clear_bit(SELECTIVE_SUSPEND, &tp->flags);
@@ -3532,6 +3541,8 @@ static int rtl8152_resume(struct usb_interface *intf)
}
usb_submit_urb(tp->intr_urb, GFP_KERNEL);
} else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+ if (tp->netdev->flags & IFF_UP)
+ rtl_runtime_suspend_enable(tp, false);
clear_bit(SELECTIVE_SUSPEND, &tp->flags);
}
@@ -3540,6 +3551,14 @@ static int rtl8152_resume(struct usb_interface *intf)
return 0;
}
+static int rtl8152_reset_resume(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+
+ clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+ return rtl8152_resume(intf);
+}
+
static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct r8152 *tp = netdev_priv(dev);
@@ -4291,7 +4310,7 @@ static struct usb_driver rtl8152_driver = {
.disconnect = rtl8152_disconnect,
.suspend = rtl8152_suspend,
.resume = rtl8152_resume,
- .reset_resume = rtl8152_resume,
+ .reset_resume = rtl8152_reset_resume,
.pre_reset = rtl8152_pre_reset,
.post_reset = rtl8152_post_reset,
.supports_autosuspend = 1,
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-25 18:18:50 +0300