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Merge branch 'r8152-next' 

Hayes Wang says:

====================
Adjust the settings about USB_RX_EARLY_AGG

v2:
For patch #1, replace

	u32 ocp_data;
	ocp_data = tp->coalesce / 8;

with

	u32 ocp_data = tp->coalesce / 8;

And replace

	struct net_device *dev = tp->netdev;
	u32 ocp_data;
	ocp_data = (agg_buf_sz - dev->mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 4;

with

	u32 mtu = tp->netdev->mtu;
	u32 ocp_data = (agg_buf_sz - mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 4;

Use *switch* statement to replace the checking of *if*.

v1:
The USB_RX_EARLY_AGG contains timeout and size. Separate them, and
they could be set independently. Then, the ethtool could be used to
change the timeout according to situation of the platform.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-02-19 15:08:47 -05:00
parent fece13ca00 efb3dd88f4
commit a53c4bf7f2
1 changed files with 104 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

131
drivers/net/usb/r8152.c
View File

@ -104,7 +104,8 @@
#define USB_TX_AGG 0xd40a
#define USB_RX_BUF_TH 0xd40c
#define USB_USB_TIMER 0xd428
#define USB_RX_EARLY_AGG 0xd42c
#define USB_RX_EARLY_TIMEOUT 0xd42c
#define USB_RX_EARLY_SIZE 0xd42e
#define USB_PM_CTRL_STATUS 0xd432
#define USB_TX_DMA 0xd434
#define USB_TOLERANCE 0xd490
@ -349,10 +350,10 @@
/* USB_MISC_0 */
#define PCUT_STATUS 0x0001
/* USB_RX_EARLY_AGG */
#define EARLY_AGG_SUPPER 0x0e832981
#define EARLY_AGG_HIGH 0x0e837a12
#define EARLY_AGG_SLOW 0x0e83ffff
/* USB_RX_EARLY_TIMEOUT */
#define COALESCE_SUPER 85000U
#define COALESCE_HIGH 250000U
#define COALESCE_SLOW 524280U
/* USB_WDT11_CTRL */
#define TIMER11_EN 0x0001
@ -606,6 +607,7 @@ struct r8152 {
u32 saved_wolopts;
u32 msg_enable;
u32 tx_qlen;
u32 coalesce;
u16 ocp_base;
u8 *intr_buff;
u8 version;
@ -2142,28 +2144,19 @@ static int rtl8152_enable(struct r8152 *tp)
return rtl_enable(tp);
}
static void r8153_set_rx_agg(struct r8152 *tp)
static void r8153_set_rx_early_timeout(struct r8152 *tp)
{
u8 speed;
u32 ocp_data = tp->coalesce / 8;
speed = rtl8152_get_speed(tp);
if (speed & _1000bps) {
if (tp->udev->speed == USB_SPEED_SUPER) {
ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH,
RX_THR_SUPPER);
ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_EARLY_AGG,
EARLY_AGG_SUPPER);
} else {
ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH,
RX_THR_HIGH);
ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_EARLY_AGG,
EARLY_AGG_HIGH);
}
} else {
ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_SLOW);
ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_EARLY_AGG,
EARLY_AGG_SLOW);
}
ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT, ocp_data);
}
static void r8153_set_rx_early_size(struct r8152 *tp)
{
u32 mtu = tp->netdev->mtu;
u32 ocp_data = (agg_buf_sz - mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 4;
ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, ocp_data);
}
static int rtl8153_enable(struct r8152 *tp)
@ -2173,7 +2166,8 @@ static int rtl8153_enable(struct r8152 *tp)
set_tx_qlen(tp);
rtl_set_eee_plus(tp);
r8153_set_rx_agg(tp);
r8153_set_rx_early_timeout(tp);
r8153_set_rx_early_size(tp);
return rtl_enable(tp);
}
@ -3719,6 +3713,61 @@ static int rtl8152_nway_reset(struct net_device *dev)
return ret;
}
static int rtl8152_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *coalesce)
{
struct r8152 *tp = netdev_priv(netdev);
switch (tp->version) {
case RTL_VER_01:
case RTL_VER_02:
return -EOPNOTSUPP;
default:
break;
}
coalesce->rx_coalesce_usecs = tp->coalesce;
return 0;
}
static int rtl8152_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *coalesce)
{
struct r8152 *tp = netdev_priv(netdev);
int ret;
switch (tp->version) {
case RTL_VER_01:
case RTL_VER_02:
return -EOPNOTSUPP;
default:
break;
}
if (coalesce->rx_coalesce_usecs > COALESCE_SLOW)
return -EINVAL;
ret = usb_autopm_get_interface(tp->intf);
if (ret < 0)
return ret;
mutex_lock(&tp->control);
if (tp->coalesce != coalesce->rx_coalesce_usecs) {
tp->coalesce = coalesce->rx_coalesce_usecs;
if (netif_running(tp->netdev) && netif_carrier_ok(netdev))
r8153_set_rx_early_timeout(tp);
}
mutex_unlock(&tp->control);
usb_autopm_put_interface(tp->intf);
return ret;
}
static struct ethtool_ops ops = {
.get_drvinfo = rtl8152_get_drvinfo,
.get_settings = rtl8152_get_settings,
@ -3732,6 +3781,8 @@ static struct ethtool_ops ops = {
.get_strings = rtl8152_get_strings,
.get_sset_count = rtl8152_get_sset_count,
.get_ethtool_stats = rtl8152_get_ethtool_stats,
.get_coalesce = rtl8152_get_coalesce,
.set_coalesce = rtl8152_set_coalesce,
.get_eee = rtl_ethtool_get_eee,
.set_eee = rtl_ethtool_set_eee,
};
@ -3783,6 +3834,7 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
{
struct r8152 *tp = netdev_priv(dev);
int ret;
switch (tp->version) {
case RTL_VER_01:
@ -3795,9 +3847,22 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU)
return -EINVAL;
ret = usb_autopm_get_interface(tp->intf);
if (ret < 0)
return ret;
mutex_lock(&tp->control);
dev->mtu = new_mtu;
return 0;
if (netif_running(dev) && netif_carrier_ok(dev))
r8153_set_rx_early_size(tp);
mutex_unlock(&tp->control);
usb_autopm_put_interface(tp->intf);
return ret;
}
static const struct net_device_ops rtl8152_netdev_ops = {
@ -3966,6 +4031,18 @@ static int rtl8152_probe(struct usb_interface *intf,
tp->mii.reg_num_mask = 0x1f;
tp->mii.phy_id = R8152_PHY_ID;
switch (udev->speed) {
case USB_SPEED_SUPER:
tp->coalesce = COALESCE_SUPER;
break;
case USB_SPEED_HIGH:
tp->coalesce = COALESCE_HIGH;
break;
default:
tp->coalesce = COALESCE_SLOW;
break;
}
intf->needs_remote_wakeup = 1;
tp->rtl_ops.init(tp);