diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/lan743x_main.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan743x_main.c | 68 |
1 files changed, 39 insertions, 29 deletions
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c index a9a1dea6d731..50eeecba1f18 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -1585,6 +1585,9 @@ static void lan743x_rfe_set_multicast(struct lan743x_adapter *adapter) rfctl |= RFE_CTL_AM_; } + if (netdev->features & NETIF_F_RXCSUM) + rfctl |= RFE_CTL_IP_COE_ | RFE_CTL_TCP_UDP_COE_; + memset(hash_table, 0, DP_SEL_VHF_HASH_LEN * sizeof(u32)); if (netdev_mc_count(netdev)) { struct netdev_hw_addr *ha; @@ -2066,11 +2069,13 @@ static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, { int required_number_of_descriptors = 0; unsigned int start_frame_length = 0; + netdev_tx_t retval = NETDEV_TX_OK; unsigned int frame_length = 0; unsigned int head_length = 0; unsigned long irq_flags = 0; bool do_timestamp = false; bool ignore_sync = false; + struct netdev_queue *txq; int nr_frags = 0; bool gso = false; int j; @@ -2083,9 +2088,12 @@ static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx, if (required_number_of_descriptors > (tx->ring_size - 1)) { dev_kfree_skb_irq(skb); } else { - /* save to overflow buffer */ - tx->overflow_skb = skb; - netif_stop_queue(tx->adapter->netdev); + /* save how many descriptors we needed to restart the queue */ + tx->rqd_descriptors = required_number_of_descriptors; + retval = NETDEV_TX_BUSY; + txq = netdev_get_tx_queue(tx->adapter->netdev, + tx->channel_number); + netif_tx_stop_queue(txq); } goto unlock; } @@ -2144,15 +2152,15 @@ finish: unlock: spin_unlock_irqrestore(&tx->ring_lock, irq_flags); - return NETDEV_TX_OK; + return retval; } static int lan743x_tx_napi_poll(struct napi_struct *napi, int weight) { struct lan743x_tx *tx = container_of(napi, struct lan743x_tx, napi); struct lan743x_adapter *adapter = tx->adapter; - bool start_transmitter = false; unsigned long irq_flags = 0; + struct netdev_queue *txq; u32 ioc_bit = 0; ioc_bit = DMAC_INT_BIT_TX_IOC_(tx->channel_number); @@ -2163,24 +2171,20 @@ static int lan743x_tx_napi_poll(struct napi_struct *napi, int weight) /* clean up tx ring */ lan743x_tx_release_completed_descriptors(tx); - if (netif_queue_stopped(adapter->netdev)) { - if (tx->overflow_skb) { - if (lan743x_tx_get_desc_cnt(tx, tx->overflow_skb) <= - lan743x_tx_get_avail_desc(tx)) - start_transmitter = true; + txq = netdev_get_tx_queue(adapter->netdev, tx->channel_number); + if (netif_tx_queue_stopped(txq)) { + if (tx->rqd_descriptors) { + if (tx->rqd_descriptors <= + lan743x_tx_get_avail_desc(tx)) { + tx->rqd_descriptors = 0; + netif_tx_wake_queue(txq); + } } else { - netif_wake_queue(adapter->netdev); + netif_tx_wake_queue(txq); } } spin_unlock_irqrestore(&tx->ring_lock, irq_flags); - if (start_transmitter) { - /* space is now available, transmit overflow skb */ - lan743x_tx_xmit_frame(tx, tx->overflow_skb); - tx->overflow_skb = NULL; - netif_wake_queue(adapter->netdev); - } - if (!napi_complete(napi)) goto done; @@ -2304,10 +2308,7 @@ static void lan743x_tx_close(struct lan743x_tx *tx) lan743x_tx_release_all_descriptors(tx); - if (tx->overflow_skb) { - dev_kfree_skb(tx->overflow_skb); - tx->overflow_skb = NULL; - } + tx->rqd_descriptors = 0; lan743x_tx_ring_cleanup(tx); } @@ -2387,7 +2388,7 @@ static int lan743x_tx_open(struct lan743x_tx *tx) (tx->channel_number)); netif_napi_add_tx_weight(adapter->netdev, &tx->napi, lan743x_tx_napi_poll, - tx->ring_size - 1); + NAPI_POLL_WEIGHT); napi_enable(&tx->napi); data = 0; @@ -2549,6 +2550,7 @@ static int lan743x_rx_process_buffer(struct lan743x_rx *rx) int result = RX_PROCESS_RESULT_NOTHING_TO_DO; struct lan743x_rx_buffer_info *buffer_info; int frame_length, buffer_length; + bool is_ice, is_tce, is_icsm; int extension_index = -1; bool is_last, is_first; struct sk_buff *skb; @@ -2595,6 +2597,9 @@ static int lan743x_rx_process_buffer(struct lan743x_rx *rx) frame_length = RX_DESC_DATA0_FRAME_LENGTH_GET_(le32_to_cpu(descriptor->data0)); buffer_length = buffer_info->buffer_length; + is_ice = le32_to_cpu(descriptor->data1) & RX_DESC_DATA1_STATUS_ICE_; + is_tce = le32_to_cpu(descriptor->data1) & RX_DESC_DATA1_STATUS_TCE_; + is_icsm = le32_to_cpu(descriptor->data1) & RX_DESC_DATA1_STATUS_ICSM_; netdev_dbg(netdev, "%s%schunk: %d/%d", is_first ? "first " : " ", @@ -2663,6 +2668,10 @@ process_extension: if (is_last && rx->skb_head) { rx->skb_head->protocol = eth_type_trans(rx->skb_head, rx->adapter->netdev); + if (rx->adapter->netdev->features & NETIF_F_RXCSUM) { + if (!is_ice && !is_tce && !is_icsm) + skb->ip_summed = CHECKSUM_UNNECESSARY; + } netdev_dbg(netdev, "sending %d byte frame to OS", rx->skb_head->len); napi_gro_receive(&rx->napi, rx->skb_head); @@ -2866,9 +2875,7 @@ static int lan743x_rx_open(struct lan743x_rx *rx) if (ret) goto return_error; - netif_napi_add(adapter->netdev, - &rx->napi, lan743x_rx_napi_poll, - NAPI_POLL_WEIGHT); + netif_napi_add(adapter->netdev, &rx->napi, lan743x_rx_napi_poll); lan743x_csr_write(adapter, DMAC_CMD, DMAC_CMD_RX_SWR_(rx->channel_number)); @@ -3347,8 +3354,10 @@ static int lan743x_pcidev_probe(struct pci_dev *pdev, PCI11X1X_USED_TX_CHANNELS, LAN743X_USED_RX_CHANNELS); } else { - netdev = devm_alloc_etherdev(&pdev->dev, - sizeof(struct lan743x_adapter)); + netdev = devm_alloc_etherdev_mqs(&pdev->dev, + sizeof(struct lan743x_adapter), + LAN743X_USED_TX_CHANNELS, + LAN743X_USED_RX_CHANNELS); } if (!netdev) @@ -3383,7 +3392,8 @@ static int lan743x_pcidev_probe(struct pci_dev *pdev, adapter->netdev->netdev_ops = &lan743x_netdev_ops; adapter->netdev->ethtool_ops = &lan743x_ethtool_ops; - adapter->netdev->features = NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM; + adapter->netdev->features = NETIF_F_SG | NETIF_F_TSO | + NETIF_F_HW_CSUM | NETIF_F_RXCSUM; adapter->netdev->hw_features = adapter->netdev->features; /* carrier off reporting is important to ethtool even BEFORE open */ |