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path: root/drivers/net/ethernet/realtek/r8169.c
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Diffstat (limited to 'drivers/net/ethernet/realtek/r8169.c')
-rw-r--r--drivers/net/ethernet/realtek/r8169.c89
1 files changed, 39 insertions, 50 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 6f06aa10f0d7..7a0c800b50ad 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -69,9 +69,6 @@
The RTL chips use a 64 element hash table based on the Ethernet CRC. */
static const int multicast_filter_limit = 32;
-/* MAC address length */
-#define MAC_ADDR_LEN 6
-
#define MAX_READ_REQUEST_SHIFT 12
#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
@@ -477,7 +474,6 @@ enum rtl_register_content {
/* Config1 register p.24 */
LEDS1 = (1 << 7),
LEDS0 = (1 << 6),
- MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
Speed_down = (1 << 4),
MEMMAP = (1 << 3),
IOMAP = (1 << 2),
@@ -485,6 +481,7 @@ enum rtl_register_content {
PMEnable = (1 << 0), /* Power Management Enable */
/* Config2 register p. 25 */
+ MSIEnable = (1 << 5), /* 8169 only. Reserved in the 8168. */
PCI_Clock_66MHz = 0x01,
PCI_Clock_33MHz = 0x00,
@@ -1183,11 +1180,13 @@ static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
return value;
}
-static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
+static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
{
- RTL_W16(IntrMask, 0x0000);
+ void __iomem *ioaddr = tp->mmio_addr;
- RTL_W16(IntrStatus, 0xffff);
+ RTL_W16(IntrMask, 0x0000);
+ RTL_W16(IntrStatus, tp->intr_event);
+ RTL_R8(ChipCmd);
}
static unsigned int rtl8169_tbi_reset_pending(struct rtl8169_private *tp)
@@ -1404,12 +1403,13 @@ static void rtl8169_get_drvinfo(struct net_device *dev,
struct rtl8169_private *tp = netdev_priv(dev);
struct rtl_fw *rtl_fw = tp->rtl_fw;
- strcpy(info->driver, MODULENAME);
- strcpy(info->version, RTL8169_VERSION);
- strcpy(info->bus_info, pci_name(tp->pci_dev));
+ strlcpy(info->driver, MODULENAME, sizeof(info->driver));
+ strlcpy(info->version, RTL8169_VERSION, sizeof(info->version));
+ strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
- strcpy(info->fw_version, IS_ERR_OR_NULL(rtl_fw) ? "N/A" :
- rtl_fw->version);
+ if (!IS_ERR_OR_NULL(rtl_fw))
+ strlcpy(info->fw_version, rtl_fw->version,
+ sizeof(info->fw_version));
}
static int rtl8169_get_regs_len(struct net_device *dev)
@@ -1553,7 +1553,8 @@ static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
return ret;
}
-static u32 rtl8169_fix_features(struct net_device *dev, u32 features)
+static netdev_features_t rtl8169_fix_features(struct net_device *dev,
+ netdev_features_t features)
{
struct rtl8169_private *tp = netdev_priv(dev);
@@ -1567,7 +1568,8 @@ static u32 rtl8169_fix_features(struct net_device *dev, u32 features)
return features;
}
-static int rtl8169_set_features(struct net_device *dev, u32 features)
+static int rtl8169_set_features(struct net_device *dev,
+ netdev_features_t features)
{
struct rtl8169_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
@@ -3424,22 +3426,24 @@ static const struct rtl_cfg_info {
};
/* Cfg9346_Unlock assumed. */
-static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
+static unsigned rtl_try_msi(struct rtl8169_private *tp,
const struct rtl_cfg_info *cfg)
{
+ void __iomem *ioaddr = tp->mmio_addr;
unsigned msi = 0;
u8 cfg2;
cfg2 = RTL_R8(Config2) & ~MSIEnable;
if (cfg->features & RTL_FEATURE_MSI) {
- if (pci_enable_msi(pdev)) {
- dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
+ if (pci_enable_msi(tp->pci_dev)) {
+ netif_info(tp, hw, tp->dev, "no MSI. Back to INTx.\n");
} else {
cfg2 |= MSIEnable;
msi = RTL_FEATURE_MSI;
}
}
- RTL_W8(Config2, cfg2);
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ RTL_W8(Config2, cfg2);
return msi;
}
@@ -3933,8 +3937,6 @@ static void rtl_hw_reset(struct rtl8169_private *tp)
break;
udelay(100);
}
-
- rtl8169_init_ring_indexes(tp);
}
static int __devinit
@@ -4077,7 +4079,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
tp->features |= RTL_FEATURE_WOL;
if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
tp->features |= RTL_FEATURE_WOL;
- tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
+ tp->features |= rtl_try_msi(tp, cfg);
RTL_W8(Cfg9346, Cfg9346_Lock);
if (rtl_tbi_enabled(tp)) {
@@ -4099,7 +4101,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
spin_lock_init(&tp->lock);
/* Get MAC address */
- for (i = 0; i < MAC_ADDR_LEN; i++)
+ for (i = 0; i < ETH_ALEN; i++)
dev->dev_addr[i] = RTL_R8(MAC0 + i);
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
@@ -4339,7 +4341,7 @@ static void rtl8169_hw_reset(struct rtl8169_private *tp)
void __iomem *ioaddr = tp->mmio_addr;
/* Disable interrupts */
- rtl8169_irq_mask_and_ack(ioaddr);
+ rtl8169_irq_mask_and_ack(tp);
rtl_rx_close(tp);
@@ -4885,8 +4887,7 @@ static void rtl_hw_start_8168(struct net_device *dev)
RTL_W16(IntrMitigate, 0x5151);
/* Work around for RxFIFO overflow. */
- if (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
- tp->mac_version == RTL_GIGA_MAC_VER_22) {
+ if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
tp->intr_event |= RxFIFOOver | PCSTimeout;
tp->intr_event &= ~RxOverflow;
}
@@ -5076,6 +5077,11 @@ static void rtl_hw_start_8101(struct net_device *dev)
void __iomem *ioaddr = tp->mmio_addr;
struct pci_dev *pdev = tp->pci_dev;
+ if (tp->mac_version >= RTL_GIGA_MAC_VER_30) {
+ tp->intr_event &= ~RxFIFOOver;
+ tp->napi_event &= ~RxFIFOOver;
+ }
+
if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
tp->mac_version == RTL_GIGA_MAC_VER_16) {
int cap = pci_pcie_cap(pdev);
@@ -5342,7 +5348,7 @@ static void rtl8169_wait_for_quiescence(struct net_device *dev)
/* Wait for any pending NAPI task to complete */
napi_disable(&tp->napi);
- rtl8169_irq_mask_and_ack(ioaddr);
+ rtl8169_irq_mask_and_ack(tp);
tp->intr_mask = 0xffff;
RTL_W16(IntrMask, tp->intr_event);
@@ -5389,14 +5395,16 @@ static void rtl8169_reset_task(struct work_struct *work)
if (!netif_running(dev))
goto out_unlock;
+ rtl8169_hw_reset(tp);
+
rtl8169_wait_for_quiescence(dev);
for (i = 0; i < NUM_RX_DESC; i++)
rtl8169_mark_to_asic(tp->RxDescArray + i, rx_buf_sz);
rtl8169_tx_clear(tp);
+ rtl8169_init_ring_indexes(tp);
- rtl8169_hw_reset(tp);
rtl_hw_start(dev);
netif_wake_queue(dev);
rtl8169_check_link_status(dev, tp, tp->mmio_addr);
@@ -5407,11 +5415,6 @@ out_unlock:
static void rtl8169_tx_timeout(struct net_device *dev)
{
- struct rtl8169_private *tp = netdev_priv(dev);
-
- rtl8169_hw_reset(tp);
-
- /* Let's wait a bit while any (async) irq lands on */
rtl8169_schedule_work(dev, rtl8169_reset_task);
}
@@ -5804,6 +5807,10 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
*/
status = RTL_R16(IntrStatus);
while (status && status != 0xffff) {
+ status &= tp->intr_event;
+ if (!status)
+ break;
+
handled = 1;
/* Handle all of the error cases first. These will reset
@@ -5818,27 +5825,9 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
switch (tp->mac_version) {
/* Work around for rx fifo overflow */
case RTL_GIGA_MAC_VER_11:
- case RTL_GIGA_MAC_VER_22:
- case RTL_GIGA_MAC_VER_26:
netif_stop_queue(dev);
rtl8169_tx_timeout(dev);
goto done;
- /* Testers needed. */
- case RTL_GIGA_MAC_VER_17:
- case RTL_GIGA_MAC_VER_19:
- case RTL_GIGA_MAC_VER_20:
- case RTL_GIGA_MAC_VER_21:
- case RTL_GIGA_MAC_VER_23:
- case RTL_GIGA_MAC_VER_24:
- case RTL_GIGA_MAC_VER_27:
- case RTL_GIGA_MAC_VER_28:
- case RTL_GIGA_MAC_VER_31:
- /* Experimental science. Pktgen proof. */
- case RTL_GIGA_MAC_VER_12:
- case RTL_GIGA_MAC_VER_25:
- if (status == RxFIFOOver)
- goto done;
- break;
default:
break;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 16:33:15 +0100