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path: root/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
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Diffstat (limited to 'drivers/net/ethernet/atheros/atl1c/atl1c_main.c')
-rw-r--r--drivers/net/ethernet/atheros/atl1c/atl1c_main.c74
1 files changed, 52 insertions, 22 deletions
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 3f65f2b370c5..1d17c24e6d75 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -47,7 +47,7 @@ static void atl1c_down(struct atl1c_adapter *adapter);
static int atl1c_reset_mac(struct atl1c_hw *hw);
static void atl1c_reset_dma_ring(struct atl1c_adapter *adapter);
static int atl1c_configure(struct atl1c_adapter *adapter);
-static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter);
+static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter, bool napi_mode);
static const u32 atl1c_default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE |
@@ -470,7 +470,7 @@ static void atl1c_set_rxbufsize(struct atl1c_adapter *adapter,
adapter->rx_buffer_len = mtu > AT_RX_BUF_SIZE ?
roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE;
- head_size = SKB_DATA_ALIGN(adapter->rx_buffer_len + NET_SKB_PAD) +
+ head_size = SKB_DATA_ALIGN(adapter->rx_buffer_len + NET_SKB_PAD + NET_IP_ALIGN) +
SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
adapter->rx_frag_size = roundup_pow_of_two(head_size);
}
@@ -813,6 +813,7 @@ static int atl1c_sw_init(struct atl1c_adapter *adapter)
atl1c_set_rxbufsize(adapter, adapter->netdev);
atomic_set(&adapter->irq_sem, 1);
spin_lock_init(&adapter->mdio_lock);
+ spin_lock_init(&adapter->hw.intr_mask_lock);
set_bit(__AT_DOWN, &adapter->flags);
return 0;
@@ -1434,7 +1435,7 @@ static int atl1c_configure(struct atl1c_adapter *adapter)
atl1c_set_multi(netdev);
atl1c_restore_vlan(adapter);
- num = atl1c_alloc_rx_buffer(adapter);
+ num = atl1c_alloc_rx_buffer(adapter, false);
if (unlikely(num == 0))
return -ENOMEM;
@@ -1530,20 +1531,19 @@ static inline void atl1c_clear_phy_int(struct atl1c_adapter *adapter)
spin_unlock(&adapter->mdio_lock);
}
-static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter,
- enum atl1c_trans_queue type)
+static int atl1c_clean_tx(struct napi_struct *napi, int budget)
{
- struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type];
+ struct atl1c_adapter *adapter =
+ container_of(napi, struct atl1c_adapter, tx_napi);
+ struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[atl1c_trans_normal];
struct atl1c_buffer *buffer_info;
struct pci_dev *pdev = adapter->pdev;
u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean);
u16 hw_next_to_clean;
- u16 reg;
unsigned int total_bytes = 0, total_packets = 0;
+ unsigned long flags;
- reg = type == atl1c_trans_high ? REG_TPD_PRI1_CIDX : REG_TPD_PRI0_CIDX;
-
- AT_READ_REGW(&adapter->hw, reg, &hw_next_to_clean);
+ AT_READ_REGW(&adapter->hw, REG_TPD_PRI0_CIDX, &hw_next_to_clean);
while (next_to_clean != hw_next_to_clean) {
buffer_info = &tpd_ring->buffer_info[next_to_clean];
@@ -1564,7 +1564,15 @@ static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter,
netif_wake_queue(adapter->netdev);
}
- return true;
+ if (total_packets < budget) {
+ napi_complete_done(napi, total_packets);
+ spin_lock_irqsave(&adapter->hw.intr_mask_lock, flags);
+ adapter->hw.intr_mask |= ISR_TX_PKT;
+ AT_WRITE_REG(&adapter->hw, REG_IMR, adapter->hw.intr_mask);
+ spin_unlock_irqrestore(&adapter->hw.intr_mask_lock, flags);
+ return total_packets;
+ }
+ return budget;
}
/**
@@ -1599,13 +1607,22 @@ static irqreturn_t atl1c_intr(int irq, void *data)
AT_WRITE_REG(hw, REG_ISR, status | ISR_DIS_INT);
if (status & ISR_RX_PKT) {
if (likely(napi_schedule_prep(&adapter->napi))) {
+ spin_lock(&hw->intr_mask_lock);
hw->intr_mask &= ~ISR_RX_PKT;
AT_WRITE_REG(hw, REG_IMR, hw->intr_mask);
+ spin_unlock(&hw->intr_mask_lock);
__napi_schedule(&adapter->napi);
}
}
- if (status & ISR_TX_PKT)
- atl1c_clean_tx_irq(adapter, atl1c_trans_normal);
+ if (status & ISR_TX_PKT) {
+ if (napi_schedule_prep(&adapter->tx_napi)) {
+ spin_lock(&hw->intr_mask_lock);
+ hw->intr_mask &= ~ISR_TX_PKT;
+ AT_WRITE_REG(hw, REG_IMR, hw->intr_mask);
+ spin_unlock(&hw->intr_mask_lock);
+ __napi_schedule(&adapter->tx_napi);
+ }
+ }
handled = IRQ_HANDLED;
/* check if PCIE PHY Link down */
@@ -1650,14 +1667,20 @@ static inline void atl1c_rx_checksum(struct atl1c_adapter *adapter,
skb_checksum_none_assert(skb);
}
-static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter)
+static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter,
+ bool napi_mode)
{
struct sk_buff *skb;
struct page *page;
- if (adapter->rx_frag_size > PAGE_SIZE)
- return netdev_alloc_skb(adapter->netdev,
- adapter->rx_buffer_len);
+ if (adapter->rx_frag_size > PAGE_SIZE) {
+ if (likely(napi_mode))
+ return napi_alloc_skb(&adapter->napi,
+ adapter->rx_buffer_len);
+ else
+ return netdev_alloc_skb_ip_align(adapter->netdev,
+ adapter->rx_buffer_len);
+ }
page = adapter->rx_page;
if (!page) {
@@ -1670,7 +1693,7 @@ static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter)
skb = build_skb(page_address(page) + adapter->rx_page_offset,
adapter->rx_frag_size);
if (likely(skb)) {
- skb_reserve(skb, NET_SKB_PAD);
+ skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN);
adapter->rx_page_offset += adapter->rx_frag_size;
if (adapter->rx_page_offset >= PAGE_SIZE)
adapter->rx_page = NULL;
@@ -1680,7 +1703,7 @@ static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter)
return skb;
}
-static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter)
+static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter, bool napi_mode)
{
struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring;
struct pci_dev *pdev = adapter->pdev;
@@ -1701,7 +1724,7 @@ static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter)
while (next_info->flags & ATL1C_BUFFER_FREE) {
rfd_desc = ATL1C_RFD_DESC(rfd_ring, rfd_next_to_use);
- skb = atl1c_alloc_skb(adapter);
+ skb = atl1c_alloc_skb(adapter, napi_mode);
if (unlikely(!skb)) {
if (netif_msg_rx_err(adapter))
dev_warn(&pdev->dev, "alloc rx buffer failed\n");
@@ -1851,13 +1874,13 @@ rrs_checked:
vlan = le16_to_cpu(vlan);
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan);
}
- netif_receive_skb(skb);
+ napi_gro_receive(&adapter->napi, skb);
(*work_done)++;
count++;
}
if (count)
- atl1c_alloc_rx_buffer(adapter);
+ atl1c_alloc_rx_buffer(adapter, true);
}
/**
@@ -1870,6 +1893,7 @@ static int atl1c_clean(struct napi_struct *napi, int budget)
struct atl1c_adapter *adapter =
container_of(napi, struct atl1c_adapter, napi);
int work_done = 0;
+ unsigned long flags;
/* Keep link state information with original netdev */
if (!netif_carrier_ok(adapter->netdev))
@@ -1880,8 +1904,10 @@ static int atl1c_clean(struct napi_struct *napi, int budget)
if (work_done < budget) {
quit_polling:
napi_complete_done(napi, work_done);
+ spin_lock_irqsave(&adapter->hw.intr_mask_lock, flags);
adapter->hw.intr_mask |= ISR_RX_PKT;
AT_WRITE_REG(&adapter->hw, REG_IMR, adapter->hw.intr_mask);
+ spin_unlock_irqrestore(&adapter->hw.intr_mask_lock, flags);
}
return work_done;
}
@@ -2319,6 +2345,7 @@ static int atl1c_up(struct atl1c_adapter *adapter)
atl1c_check_link_status(adapter);
clear_bit(__AT_DOWN, &adapter->flags);
napi_enable(&adapter->napi);
+ napi_enable(&adapter->tx_napi);
atl1c_irq_enable(adapter);
netif_start_queue(netdev);
return err;
@@ -2339,6 +2366,7 @@ static void atl1c_down(struct atl1c_adapter *adapter)
set_bit(__AT_DOWN, &adapter->flags);
netif_carrier_off(netdev);
napi_disable(&adapter->napi);
+ napi_disable(&adapter->tx_napi);
atl1c_irq_disable(adapter);
atl1c_free_irq(adapter);
/* disable ASPM if device inactive */
@@ -2587,7 +2615,9 @@ static int atl1c_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
adapter->mii.mdio_write = atl1c_mdio_write;
adapter->mii.phy_id_mask = 0x1f;
adapter->mii.reg_num_mask = MDIO_CTRL_REG_MASK;
+ dev_set_threaded(netdev, true);
netif_napi_add(netdev, &adapter->napi, atl1c_clean, 64);
+ netif_napi_add(netdev, &adapter->tx_napi, atl1c_clean_tx, 64);
timer_setup(&adapter->phy_config_timer, atl1c_phy_config, 0);
/* setup the private structure */
err = atl1c_sw_init(adapter);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 19:21:17 +0300