#include "sky2.h"
#define DRV_NAME "sky2"
-#define DRV_VERSION "0.12"
+#define DRV_VERSION "0.13"
#define PFX DRV_NAME " "
/*
static const u32 default_msg =
NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
| NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
- | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN | NETIF_MSG_INTR;
+ | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
static int debug = -1; /* defaults above */
module_param(debug, int, 0);
* This is a workaround code taken from SysKonnect sk98lin driver
* to deal with chip bug on Yukon EC rev 0 in the wraparound case.
*/
-static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q,
+static void sky2_put_idx(struct sky2_hw *hw, unsigned q,
u16 idx, u16 *last, u16 size)
{
wmb();
}
/* Build description to hardware about buffer */
-static inline void sky2_rx_add(struct sky2_port *sky2, dma_addr_t map)
+static void sky2_rx_add(struct sky2_port *sky2, dma_addr_t map)
{
struct sky2_rx_le *le;
u32 hi = high32(map);
struct sky2_hw *hw = sky2->hw;
u16 port = sky2->port;
- spin_lock(&sky2->tx_lock);
+ spin_lock_bh(&sky2->tx_lock);
sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_ON);
sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_ON);
sky2->vlgrp = grp;
- spin_unlock(&sky2->tx_lock);
+ spin_unlock_bh(&sky2->tx_lock);
}
static void sky2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
struct sky2_hw *hw = sky2->hw;
u16 port = sky2->port;
- spin_lock(&sky2->tx_lock);
+ spin_lock_bh(&sky2->tx_lock);
sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_OFF);
sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_OFF);
if (sky2->vlgrp)
sky2->vlgrp->vlan_devices[vid] = NULL;
- spin_unlock(&sky2->tx_lock);
+ spin_unlock_bh(&sky2->tx_lock);
}
#endif
}
/* Estimate of number of transmit list elements required */
-static inline unsigned tx_le_req(const struct sk_buff *skb)
+static unsigned tx_le_req(const struct sk_buff *skb)
{
unsigned count;
u16 mss;
u8 ctrl;
+ /* No BH disabling for tx_lock here. We are running in BH disabled
+ * context and TX reclaim runs via poll inside of a software
+ * interrupt, and no related locks in IRQ processing.
+ */
if (!spin_trylock(&sky2->tx_lock))
return NETDEV_TX_LOCKED;
*/
if (!netif_queue_stopped(dev)) {
netif_stop_queue(dev);
- printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
- dev->name);
+ if (net_ratelimit())
+ printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
+ dev->name);
}
spin_unlock(&sky2->tx_lock);
dev_kfree_skb_any(skb);
}
- spin_lock(&sky2->tx_lock);
sky2->tx_cons = put;
if (netif_queue_stopped(dev) && tx_avail(sky2) > MAX_SKB_TX_LE)
netif_wake_queue(dev);
- spin_unlock(&sky2->tx_lock);
}
/* Cleanup all untransmitted buffers, assume transmitter not running */
static void sky2_tx_clean(struct sky2_port *sky2)
{
+ spin_lock_bh(&sky2->tx_lock);
sky2_tx_complete(sky2, sky2->tx_prod);
+ spin_unlock_bh(&sky2->tx_lock);
}
/* Network shutdown */
local_irq_enable();
}
+
+/* Transmit timeout is only called if we are running, carries is up
+ * and tx queue is full (stopped).
+ */
static void sky2_tx_timeout(struct net_device *dev)
{
struct sky2_port *sky2 = netdev_priv(dev);
struct sky2_hw *hw = sky2->hw;
unsigned txq = txqaddr[sky2->port];
+ u16 ridx;
+
+ /* Maybe we just missed an status interrupt */
+ spin_lock(&sky2->tx_lock);
+ ridx = sky2_read16(hw,
+ sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX);
+ sky2_tx_complete(sky2, ridx);
+ spin_unlock(&sky2->tx_lock);
+
+ if (!netif_queue_stopped(dev)) {
+ if (net_ratelimit())
+ pr_info(PFX "transmit interrupt missed? recovered\n");
+ return;
+ }
if (netif_msg_timer(sky2))
printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
- netif_stop_queue(dev);
-
sky2_write32(hw, Q_ADDR(txq, Q_CSR), BMU_STOP);
- sky2_read32(hw, Q_ADDR(txq, Q_CSR));
-
sky2_write32(hw, Y2_QADDR(txq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
sky2_tx_clean(sky2);
sky2_qset(hw, txq);
sky2_prefetch_init(hw, txq, sky2->tx_le_map, TX_RING_SIZE - 1);
-
- netif_wake_queue(dev);
}
error:
++sky2->net_stats.rx_errors;
- if (netif_msg_rx_err(sky2))
+ if (netif_msg_rx_err(sky2) && net_ratelimit())
printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
sky2->netdev->name, status, length);
*/
#define TX_NO_STATUS 0xffff
-static inline void sky2_tx_check(struct sky2_hw *hw, int port, u16 last)
+static void sky2_tx_check(struct sky2_hw *hw, int port, u16 last)
{
if (last != TX_NO_STATUS) {
struct net_device *dev = hw->dev[port];
if (dev && netif_running(dev)) {
struct sky2_port *sky2 = netdev_priv(dev);
+
+ spin_lock(&sky2->tx_lock);
sky2_tx_complete(sky2, last);
+ spin_unlock(&sky2->tx_lock);
}
}
}
{
struct net_device *dev = hw->dev[port];
- printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
- dev->name, status);
+ if (net_ratelimit())
+ printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
+ dev->name, status);
if (status & Y2_IS_PAR_RD1) {
- printk(KERN_ERR PFX "%s: ram data read parity error\n",
- dev->name);
+ if (net_ratelimit())
+ printk(KERN_ERR PFX "%s: ram data read parity error\n",
+ dev->name);
/* Clear IRQ */
sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
}
if (status & Y2_IS_PAR_WR1) {
- printk(KERN_ERR PFX "%s: ram data write parity error\n",
- dev->name);
+ if (net_ratelimit())
+ printk(KERN_ERR PFX "%s: ram data write parity error\n",
+ dev->name);
sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
}
if (status & Y2_IS_PAR_MAC1) {
- printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
+ if (net_ratelimit())
+ printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
}
if (status & Y2_IS_PAR_RX1) {
- printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
+ if (net_ratelimit())
+ printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
}
if (status & Y2_IS_TCP_TXA1) {
- printk(KERN_ERR PFX "%s: TCP segmentation error\n", dev->name);
+ if (net_ratelimit())
+ printk(KERN_ERR PFX "%s: TCP segmentation error\n",
+ dev->name);
sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
}
}
u16 pci_err;
pci_read_config_word(hw->pdev, PCI_STATUS, &pci_err);
- printk(KERN_ERR PFX "%s: pci hw error (0x%x)\n",
- pci_name(hw->pdev), pci_err);
+ if (net_ratelimit())
+ printk(KERN_ERR PFX "%s: pci hw error (0x%x)\n",
+ pci_name(hw->pdev), pci_err);
sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
pci_write_config_word(hw->pdev, PCI_STATUS,
pci_read_config_dword(hw->pdev, PEX_UNC_ERR_STAT, &pex_err);
- printk(KERN_ERR PFX "%s: pci express error (0x%x)\n",
- pci_name(hw->pdev), pex_err);
+ if (net_ratelimit())
+ printk(KERN_ERR PFX "%s: pci express error (0x%x)\n",
+ pci_name(hw->pdev), pex_err);
/* clear the interrupt */
sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
return 0;
}
-static inline u32 sky2_supported_modes(const struct sky2_hw *hw)
+static u32 sky2_supported_modes(const struct sky2_hw *hw)
{
u32 modes;
if (hw->copper) {
return dev;
}
-static inline void sky2_show_addr(struct net_device *dev)
+static void __devinit sky2_show_addr(struct net_device *dev)
{
const struct sky2_port *sky2 = netdev_priv(dev);
#endif
err = -ENOMEM;
- hw = kmalloc(sizeof(*hw), GFP_KERNEL);
+ hw = kzalloc(sizeof(*hw), GFP_KERNEL);
if (!hw) {
printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
pci_name(pdev));
goto err_out_free_regions;
}
- memset(hw, 0, sizeof(*hw));
hw->pdev = pdev;
hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
projects / powerpc.git / blobdiff