Commit ce780551 authored by David S. Miller's avatar David S. Miller

Merge branch 'r8169-series-with-further-smaller-improvements'

Heiner Kallweit says:

====================
r8169: series with further smaller improvements

Nothing too exciting. This series includes further smaller
improvements.
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 744676e7 0da3359a
......@@ -212,7 +212,6 @@ enum rtl_registers {
/* Unlimited maximum PCI burst. */
#define RX_DMA_BURST (7 << RXCFG_DMA_SHIFT)
RxMissed = 0x4c,
Cfg9346 = 0x50,
Config0 = 0x51,
Config1 = 0x52,
......@@ -576,6 +575,7 @@ struct rtl8169_tc_offsets {
__le64 tx_errors;
__le32 tx_multi_collision;
__le16 tx_aborted;
__le16 rx_missed;
};
enum rtl_flag {
......@@ -689,6 +689,12 @@ static void rtl_unlock_config_regs(struct rtl8169_private *tp)
RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
}
static void rtl_pci_commit(struct rtl8169_private *tp)
{
/* Read an arbitrary register to commit a preceding PCI write */
RTL_R8(tp, ChipCmd);
}
static bool rtl_is_8125(struct rtl8169_private *tp)
{
return tp->mac_version >= RTL_GIGA_MAC_VER_60;
......@@ -1319,18 +1325,13 @@ static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
{
rtl_irq_disable(tp);
rtl_ack_events(tp, 0xffffffff);
/* PCI commit */
RTL_R8(tp, ChipCmd);
rtl_pci_commit(tp);
}
static void rtl_link_chg_patch(struct rtl8169_private *tp)
{
struct net_device *dev = tp->dev;
struct phy_device *phydev = tp->phydev;
if (!netif_running(dev))
return;
if (tp->mac_version == RTL_GIGA_MAC_VER_34 ||
tp->mac_version == RTL_GIGA_MAC_VER_38) {
if (phydev->speed == SPEED_1000) {
......@@ -1536,7 +1537,7 @@ static int rtl8169_set_features(struct net_device *dev,
}
RTL_W16(tp, CPlusCmd, tp->cp_cmd);
RTL_R16(tp, CPlusCmd);
rtl_pci_commit(tp);
rtl_unlock_work(tp);
......@@ -1622,7 +1623,7 @@ static bool rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
u32 cmd;
RTL_W32(tp, CounterAddrHigh, (u64)paddr >> 32);
RTL_R32(tp, CounterAddrHigh);
rtl_pci_commit(tp);
cmd = (u64)paddr & DMA_BIT_MASK(32);
RTL_W32(tp, CounterAddrLow, cmd);
RTL_W32(tp, CounterAddrLow, cmd | counter_cmd);
......@@ -1689,6 +1690,7 @@ static bool rtl8169_init_counter_offsets(struct rtl8169_private *tp)
tp->tc_offset.tx_errors = counters->tx_errors;
tp->tc_offset.tx_multi_collision = counters->tx_multi_collision;
tp->tc_offset.tx_aborted = counters->tx_aborted;
tp->tc_offset.rx_missed = counters->rx_missed;
tp->tc_offset.inited = true;
return ret;
......@@ -1946,7 +1948,7 @@ static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
tp->cp_cmd = (tp->cp_cmd & ~INTT_MASK) | cp01;
RTL_W16(tp, CPlusCmd, tp->cp_cmd);
RTL_R16(tp, CPlusCmd);
rtl_pci_commit(tp);
rtl_unlock_work(tp);
......@@ -2044,7 +2046,7 @@ static void rtl_enable_eee(struct rtl8169_private *tp)
phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
}
static void rtl8169_get_mac_version(struct rtl8169_private *tp)
static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
{
/*
* The driver currently handles the 8168Bf and the 8168Be identically
......@@ -2060,7 +2062,7 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp)
static const struct rtl_mac_info {
u16 mask;
u16 val;
u16 mac_version;
enum mac_version ver;
} mac_info[] = {
/* 8125 family. */
{ 0x7cf, 0x608, RTL_GIGA_MAC_VER_60 },
......@@ -2147,22 +2149,22 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp)
{ 0x000, 0x000, RTL_GIGA_MAC_NONE }
};
const struct rtl_mac_info *p = mac_info;
u16 reg = RTL_R32(tp, TxConfig) >> 20;
enum mac_version ver;
while ((reg & p->mask) != p->val)
while ((xid & p->mask) != p->val)
p++;
tp->mac_version = p->mac_version;
if (tp->mac_version == RTL_GIGA_MAC_NONE) {
dev_err(tp_to_dev(tp), "unknown chip XID %03x\n", reg & 0xfcf);
} else if (!tp->supports_gmii) {
if (tp->mac_version == RTL_GIGA_MAC_VER_42)
tp->mac_version = RTL_GIGA_MAC_VER_43;
else if (tp->mac_version == RTL_GIGA_MAC_VER_45)
tp->mac_version = RTL_GIGA_MAC_VER_47;
else if (tp->mac_version == RTL_GIGA_MAC_VER_46)
tp->mac_version = RTL_GIGA_MAC_VER_48;
ver = p->ver;
if (ver != RTL_GIGA_MAC_NONE && !gmii) {
if (ver == RTL_GIGA_MAC_VER_42)
ver = RTL_GIGA_MAC_VER_43;
else if (ver == RTL_GIGA_MAC_VER_45)
ver = RTL_GIGA_MAC_VER_47;
else if (ver == RTL_GIGA_MAC_VER_46)
ver = RTL_GIGA_MAC_VER_48;
}
return ver;
}
static void rtl_release_firmware(struct rtl8169_private *tp)
......@@ -2264,10 +2266,10 @@ static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
rtl_unlock_config_regs(tp);
RTL_W32(tp, MAC4, addr[4] | addr[5] << 8);
RTL_R32(tp, MAC4);
rtl_pci_commit(tp);
RTL_W32(tp, MAC0, addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
RTL_R32(tp, MAC0);
rtl_pci_commit(tp);
if (tp->mac_version == RTL_GIGA_MAC_VER_34)
rtl_rar_exgmac_set(tp, addr);
......@@ -2471,66 +2473,52 @@ static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
}
static void rtl_hw_jumbo_enable(struct rtl8169_private *tp)
static void rtl_jumbo_config(struct rtl8169_private *tp)
{
rtl_unlock_config_regs(tp);
switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
pcie_set_readrq(tp->pci_dev, 512);
r8168b_1_hw_jumbo_enable(tp);
break;
case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
pcie_set_readrq(tp->pci_dev, 512);
r8168c_hw_jumbo_enable(tp);
break;
case RTL_GIGA_MAC_VER_27 ... RTL_GIGA_MAC_VER_28:
r8168dp_hw_jumbo_enable(tp);
break;
case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_33:
pcie_set_readrq(tp->pci_dev, 512);
r8168e_hw_jumbo_enable(tp);
break;
default:
break;
}
rtl_lock_config_regs(tp);
}
bool jumbo = tp->dev->mtu > ETH_DATA_LEN;
static void rtl_hw_jumbo_disable(struct rtl8169_private *tp)
{
rtl_unlock_config_regs(tp);
switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
r8168b_1_hw_jumbo_disable(tp);
if (jumbo) {
pcie_set_readrq(tp->pci_dev, 512);
r8168b_1_hw_jumbo_enable(tp);
} else {
r8168b_1_hw_jumbo_disable(tp);
}
break;
case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
r8168c_hw_jumbo_disable(tp);
if (jumbo) {
pcie_set_readrq(tp->pci_dev, 512);
r8168c_hw_jumbo_enable(tp);
} else {
r8168c_hw_jumbo_disable(tp);
}
break;
case RTL_GIGA_MAC_VER_27 ... RTL_GIGA_MAC_VER_28:
r8168dp_hw_jumbo_disable(tp);
if (jumbo)
r8168dp_hw_jumbo_enable(tp);
else
r8168dp_hw_jumbo_disable(tp);
break;
case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_33:
r8168e_hw_jumbo_disable(tp);
if (jumbo) {
pcie_set_readrq(tp->pci_dev, 512);
r8168e_hw_jumbo_enable(tp);
} else {
r8168e_hw_jumbo_disable(tp);
}
break;
default:
break;
}
rtl_lock_config_regs(tp);
if (pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
if (!jumbo && pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
pcie_set_readrq(tp->pci_dev, 4096);
}
static void rtl_jumbo_config(struct rtl8169_private *tp, int mtu)
{
if (mtu > ETH_DATA_LEN)
rtl_hw_jumbo_enable(tp);
else
rtl_hw_jumbo_disable(tp);
}
DECLARE_RTL_COND(rtl_chipcmd_cond)
{
return RTL_R8(tp, ChipCmd) & CmdReset;
......@@ -3838,9 +3826,6 @@ static void rtl_hw_start_8168(struct rtl8169_private *tp)
static void rtl_hw_start_8169(struct rtl8169_private *tp)
{
if (tp->mac_version == RTL_GIGA_MAC_VER_05)
pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
RTL_W8(tp, EarlyTxThres, NoEarlyTx);
tp->cp_cmd |= PCIMulRW;
......@@ -3853,8 +3838,6 @@ static void rtl_hw_start_8169(struct rtl8169_private *tp)
rtl8169_set_magic_reg(tp, tp->mac_version);
RTL_W32(tp, RxMissed, 0);
/* disable interrupt coalescing */
RTL_W16(tp, IntrMitigate, 0x0000);
}
......@@ -3877,10 +3860,11 @@ static void rtl_hw_start(struct rtl8169_private *tp)
rtl_set_rx_tx_desc_registers(tp);
rtl_lock_config_regs(tp);
rtl_jumbo_config(tp, tp->dev->mtu);
rtl_jumbo_config(tp);
/* Initially a 10 us delay. Turned it into a PCI commit. - FR */
RTL_R16(tp, CPlusCmd);
rtl_pci_commit(tp);
RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
rtl_init_rxcfg(tp);
rtl_set_tx_config_registers(tp);
......@@ -3892,10 +3876,9 @@ static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
{
struct rtl8169_private *tp = netdev_priv(dev);
rtl_jumbo_config(tp, new_mtu);
dev->mtu = new_mtu;
netdev_update_features(dev);
rtl_jumbo_config(tp);
return 0;
}
......@@ -4697,17 +4680,6 @@ static int rtl8169_poll(struct napi_struct *napi, int budget)
return work_done;
}
static void rtl8169_rx_missed(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);
if (tp->mac_version > RTL_GIGA_MAC_VER_06)
return;
dev->stats.rx_missed_errors += RTL_R32(tp, RxMissed) & 0xffffff;
RTL_W32(tp, RxMissed, 0);
}
static void r8169_phylink_handler(struct net_device *ndev)
{
struct rtl8169_private *tp = netdev_priv(ndev);
......@@ -4757,12 +4729,6 @@ static void rtl8169_down(struct net_device *dev)
netif_stop_queue(dev);
rtl8169_hw_reset(tp);
/*
* At this point device interrupts can not be enabled in any function,
* as netif_running is not true (rtl8169_interrupt, rtl8169_reset_task)
* and napi is disabled (rtl8169_poll).
*/
rtl8169_rx_missed(dev);
/* Give a racing hard_start_xmit a few cycles to complete. */
synchronize_rcu();
......@@ -4907,9 +4873,6 @@ rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
pm_runtime_get_noresume(&pdev->dev);
if (netif_running(dev) && pm_runtime_active(&pdev->dev))
rtl8169_rx_missed(dev);
do {
start = u64_stats_fetch_begin_irq(&tp->rx_stats.syncp);
stats->rx_packets = tp->rx_stats.packets;
......@@ -4928,7 +4891,6 @@ rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
stats->rx_errors = dev->stats.rx_errors;
stats->rx_crc_errors = dev->stats.rx_crc_errors;
stats->rx_fifo_errors = dev->stats.rx_fifo_errors;
stats->rx_missed_errors = dev->stats.rx_missed_errors;
stats->multicast = dev->stats.multicast;
/*
......@@ -4948,6 +4910,8 @@ rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
le32_to_cpu(tp->tc_offset.tx_multi_collision);
stats->tx_aborted_errors = le16_to_cpu(counters->tx_aborted) -
le16_to_cpu(tp->tc_offset.tx_aborted);
stats->rx_missed_errors = le16_to_cpu(counters->rx_missed) -
le16_to_cpu(tp->tc_offset.rx_missed);
pm_runtime_put_noidle(&pdev->dev);
}
......@@ -5033,7 +4997,6 @@ static int rtl8169_runtime_suspend(struct device *device)
rtl8169_net_suspend(dev);
/* Update counters before going runtime suspend */
rtl8169_rx_missed(dev);
rtl8169_update_counters(tp);
return 0;
......@@ -5098,8 +5061,7 @@ static void rtl_wol_shutdown_quirk(struct rtl8169_private *tp)
pci_clear_master(tp->pci_dev);
RTL_W8(tp, ChipCmd, CmdRxEnb);
/* PCI commit */
RTL_R8(tp, ChipCmd);
rtl_pci_commit(tp);
break;
default:
break;
......@@ -5442,9 +5404,10 @@ static void rtl_init_mac_address(struct rtl8169_private *tp)
static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct rtl8169_private *tp;
int jumbo_max, region, rc;
enum mac_version chipset;
struct net_device *dev;
int chipset, region;
int jumbo_max, rc;
u16 xid;
/* Some tools for creating an initramfs don't consider softdeps, then
* r8169.ko may be in initramfs, but realtek.ko not. Then the generic
......@@ -5511,10 +5474,16 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
tp->mmio_addr = pcim_iomap_table(pdev)[region];
xid = (RTL_R32(tp, TxConfig) >> 20) & 0xfcf;
/* Identify chip attached to board */
rtl8169_get_mac_version(tp);
if (tp->mac_version == RTL_GIGA_MAC_NONE)
chipset = rtl8169_get_mac_version(xid, tp->supports_gmii);
if (chipset == RTL_GIGA_MAC_NONE) {
dev_err(&pdev->dev, "unknown chip XID %03x\n", xid);
return -ENODEV;
}
tp->mac_version = chipset;
tp->cp_cmd = RTL_R16(tp, CPlusCmd);
......@@ -5532,8 +5501,6 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_set_master(pdev);
chipset = tp->mac_version;
rc = rtl_alloc_irq(tp);
if (rc < 0) {
dev_err(&pdev->dev, "Can't allocate interrupt\n");
......@@ -5551,9 +5518,6 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
netif_napi_add(dev, &tp->napi, rtl8169_poll, NAPI_POLL_WEIGHT);
dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_RX;
dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_RX;
......@@ -5575,7 +5539,6 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rtl_chip_supports_csum_v2(tp)) {
dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
dev->features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
dev->gso_max_size = RTL_GSO_MAX_SIZE_V2;
dev->gso_max_segs = RTL_GSO_MAX_SEGS_V2;
} else {
......@@ -5590,9 +5553,10 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
tp->mac_version == RTL_GIGA_MAC_VER_22) {
dev->vlan_features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
dev->hw_features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
dev->features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
}
dev->features |= dev->hw_features;
dev->hw_features |= NETIF_F_RXALL;
dev->hw_features |= NETIF_F_RXFCS;
......@@ -5624,8 +5588,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_mdio_unregister;
netif_info(tp, probe, dev, "%s, %pM, XID %03x, IRQ %d\n",
rtl_chip_infos[chipset].name, dev->dev_addr,
(RTL_R32(tp, TxConfig) >> 20) & 0xfcf,
rtl_chip_infos[chipset].name, dev->dev_addr, xid,
pci_irq_vector(pdev, 0));
if (jumbo_max)
......
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