#include "ag71xx.h"
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)
-static inline void skb_free_frag(void *data)
-{
- put_page(virt_to_head_page(data));
-}
-#endif
-
#define AG71XX_DEFAULT_MSG_ENABLE \
(NETIF_MSG_DRV \
| NETIF_MSG_PROBE \
mii_reg = ag71xx_rr(ag, AG71XX_REG_MII_CFG);
rx_ds = ag71xx_rr(ag, AG71XX_REG_RX_DESC);
+ ag71xx_tx_packets(ag, true);
+
ath79_device_reset_set(reset_mask);
udelay(10);
ath79_device_reset_clear(reset_mask);
ag71xx_dma_reset(ag);
ag71xx_hw_setup(ag);
- ag71xx_tx_packets(ag, true);
ag->tx_ring.curr = 0;
ag->tx_ring.dirty = 0;
netdev_reset_queue(ag->dev);
ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
+
+ if (pdata->disable_inline_checksum_engine) {
+ /*
+ * The rx ring buffer can stall on small packets on QCA953x and
+ * QCA956x. Disabling the inline checksum engine fixes the stall.
+ * The wr, rr functions cannot be used since this hidden register
+ * is outside of the normal ag71xx register block.
+ */
+ void __iomem *dam = ioremap_nocache(0xb90001bc, 0x4);
+ if (dam) {
+ __raw_writel(__raw_readl(dam) & ~BIT(27), dam);
+ (void)__raw_readl(dam);
+ iounmap(dam);
+ }
+ }
+
ag71xx_hw_start(ag);
netif_carrier_on(ag->dev);
netdev_sent_queue(dev, skb->len);
+ skb_tx_timestamp(skb);
+
desc->ctrl &= ~DESC_EMPTY;
ring->curr += n;
if (netif_msg_tx_err(ag))
pr_info("%s: tx timeout\n", ag->dev->name);
- schedule_work(&ag->restart_work);
+ schedule_delayed_work(&ag->restart_work, 1);
}
static void ag71xx_restart_work_func(struct work_struct *work)
{
- struct ag71xx *ag = container_of(work, struct ag71xx, restart_work);
+ struct ag71xx *ag = container_of(work, struct ag71xx, restart_work.work);
rtnl_lock();
ag71xx_hw_disable(ag);
{
struct ag71xx_ring *ring = &ag->tx_ring;
struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+ bool dma_stuck = false;
int ring_mask = BIT(ring->order) - 1;
int ring_size = BIT(ring->order);
int sent = 0;
if (!flush && !ag71xx_desc_empty(desc)) {
if (pdata->is_ar724x &&
- ag71xx_check_dma_stuck(ag, ring->buf[i].timestamp))
- schedule_work(&ag->restart_work);
+ ag71xx_check_dma_stuck(ag, ring->buf[i].timestamp)) {
+ schedule_delayed_work(&ag->restart_work, HZ / 2);
+ dma_stuck = true;
+ }
break;
}
if ((ring->curr - ring->dirty) < (ring_size * 3) / 4)
netif_wake_queue(ag->dev);
+ if (!dma_stuck)
+ cancel_delayed_work(&ag->restart_work);
+
return sent;
}
dev->netdev_ops = &ag71xx_netdev_ops;
dev->ethtool_ops = &ag71xx_ethtool_ops;
- INIT_WORK(&ag->restart_work, ag71xx_restart_work_func);
+ INIT_DELAYED_WORK(&ag->restart_work, ag71xx_restart_work_func);
init_timer(&ag->oom_timer);
ag->oom_timer.data = (unsigned long) dev;