diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ixgbevf.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 55 |
2 files changed, 19 insertions, 40 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h index 8971e2d0a98..eaaa3ecacfd 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h @@ -86,9 +86,7 @@ struct ixgbevf_ring { u64 bp_misses; u64 bp_cleaned; #endif - - u16 head; - u16 tail; + u8 __iomem *tail; u16 reg_idx; /* holds the special value that gets the hardware register * offset associated with this ring, which is different diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 92ef4cb5a8e..84b55fe7154 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -98,10 +98,11 @@ MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); static void ixgbevf_set_itr(struct ixgbevf_q_vector *q_vector); static void ixgbevf_free_all_rx_resources(struct ixgbevf_adapter *adapter); -static inline void ixgbevf_release_rx_desc(struct ixgbe_hw *hw, - struct ixgbevf_ring *rx_ring, +static inline void ixgbevf_release_rx_desc(struct ixgbevf_ring *rx_ring, u32 val) { + rx_ring->next_to_use = val; + /* * Force memory writes to complete before letting h/w * know there are new descriptors to fetch. (Only @@ -109,7 +110,7 @@ static inline void ixgbevf_release_rx_desc(struct ixgbe_hw *hw, * such as IA-64). */ wmb(); - IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rx_ring->reg_idx), val); + writel(val, rx_ring->tail); } /** @@ -406,10 +407,8 @@ static void ixgbevf_alloc_rx_buffers(struct ixgbevf_adapter *adapter, } no_buffers: - if (rx_ring->next_to_use != i) { - rx_ring->next_to_use = i; - ixgbevf_release_rx_desc(&adapter->hw, rx_ring, i); - } + if (rx_ring->next_to_use != i) + ixgbevf_release_rx_desc(rx_ring, i); } static inline void ixgbevf_irq_enable_queues(struct ixgbevf_adapter *adapter, @@ -1110,8 +1109,9 @@ static void ixgbevf_configure_tx(struct ixgbevf_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(j), tdlen); IXGBE_WRITE_REG(hw, IXGBE_VFTDH(j), 0); IXGBE_WRITE_REG(hw, IXGBE_VFTDT(j), 0); - adapter->tx_ring[i].head = IXGBE_VFTDH(j); - adapter->tx_ring[i].tail = IXGBE_VFTDT(j); + ring->tail = hw->hw_addr + IXGBE_VFTDT(j); + ring->next_to_clean = 0; + ring->next_to_use = 0; /* Disable Tx Head Writeback RO bit, since this hoses * bookkeeping if things aren't delivered in order. */ @@ -1208,20 +1208,22 @@ static void ixgbevf_configure_rx(struct ixgbevf_adapter *adapter) /* set_rx_buffer_len must be called before ring initialization */ ixgbevf_set_rx_buffer_len(adapter); - rdlen = adapter->rx_ring[0].count * sizeof(union ixgbe_adv_rx_desc); /* Setup the HW Rx Head and Tail Descriptor Pointers and * the Base and Length of the Rx Descriptor Ring */ for (i = 0; i < adapter->num_rx_queues; i++) { - rdba = adapter->rx_ring[i].dma; - j = adapter->rx_ring[i].reg_idx; + struct ixgbevf_ring *ring = &adapter->rx_ring[i]; + rdba = ring->dma; + j = ring->reg_idx; + rdlen = ring->count * sizeof(union ixgbe_adv_rx_desc); IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(j), (rdba & DMA_BIT_MASK(32))); IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(j), (rdba >> 32)); IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(j), rdlen); IXGBE_WRITE_REG(hw, IXGBE_VFRDH(j), 0); IXGBE_WRITE_REG(hw, IXGBE_VFRDT(j), 0); - adapter->rx_ring[i].head = IXGBE_VFRDH(j); - adapter->rx_ring[i].tail = IXGBE_VFRDT(j); + ring->tail = hw->hw_addr + IXGBE_VFRDT(j); + ring->next_to_clean = 0; + ring->next_to_use = 0; ixgbevf_configure_srrctl(adapter, j); } @@ -1402,7 +1404,7 @@ static void ixgbevf_rx_desc_queue_enable(struct ixgbevf_adapter *adapter, hw_dbg(hw, "RXDCTL.ENABLE queue %d not set while polling\n", rxr); - ixgbevf_release_rx_desc(&adapter->hw, &adapter->rx_ring[rxr], + ixgbevf_release_rx_desc(&adapter->rx_ring[rxr], (adapter->rx_ring[rxr].count - 1)); } @@ -1680,14 +1682,6 @@ static void ixgbevf_clean_rx_ring(struct ixgbevf_adapter *adapter, /* Zero out the descriptor ring */ memset(rx_ring->desc, 0, rx_ring->size); - - rx_ring->next_to_clean = 0; - rx_ring->next_to_use = 0; - - if (rx_ring->head) - writel(0, adapter->hw.hw_addr + rx_ring->head); - if (rx_ring->tail) - writel(0, adapter->hw.hw_addr + rx_ring->tail); } /** @@ -1715,14 +1709,6 @@ static void ixgbevf_clean_tx_ring(struct ixgbevf_adapter *adapter, memset(tx_ring->tx_buffer_info, 0, size); memset(tx_ring->desc, 0, tx_ring->size); - - tx_ring->next_to_use = 0; - tx_ring->next_to_clean = 0; - - if (tx_ring->head) - writel(0, adapter->hw.hw_addr + tx_ring->head); - if (tx_ring->tail) - writel(0, adapter->hw.hw_addr + tx_ring->tail); } /** @@ -2473,8 +2459,6 @@ int ixgbevf_setup_tx_resources(struct ixgbevf_adapter *adapter, if (!tx_ring->desc) goto err; - tx_ring->next_to_use = 0; - tx_ring->next_to_clean = 0; return 0; err: @@ -2542,9 +2526,6 @@ int ixgbevf_setup_rx_resources(struct ixgbevf_adapter *adapter, goto alloc_failed; } - rx_ring->next_to_clean = 0; - rx_ring->next_to_use = 0; - return 0; alloc_failed: return -ENOMEM; @@ -3181,7 +3162,7 @@ static int ixgbevf_xmit_frame(struct sk_buff *skb, struct net_device *netdev) ixgbevf_tx_map(tx_ring, skb, tx_flags), first, skb->len, hdr_len); - writel(tx_ring->next_to_use, adapter->hw.hw_addr + tx_ring->tail); + writel(tx_ring->next_to_use, tx_ring->tail); ixgbevf_maybe_stop_tx(tx_ring, DESC_NEEDED); |