diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_init.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_init.c | 48 |
1 files changed, 26 insertions, 22 deletions
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index 0759c35f16a..8e45dcc27c7 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -173,9 +173,10 @@ void netxen_release_tx_buffers(struct netxen_adapter *adapter) struct netxen_cmd_buffer *cmd_buf; struct netxen_skb_frag *buffrag; int i, j; + struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; - cmd_buf = adapter->cmd_buf_arr; - for (i = 0; i < adapter->num_txd; i++) { + cmd_buf = tx_ring->cmd_buf_arr; + for (i = 0; i < tx_ring->num_desc; i++) { buffrag = cmd_buf->frag_array; if (buffrag->dma) { pci_unmap_single(adapter->pdev, buffrag->dma, @@ -203,6 +204,7 @@ void netxen_free_sw_resources(struct netxen_adapter *adapter) { struct netxen_recv_context *recv_ctx; struct nx_host_rds_ring *rds_ring; + struct nx_host_tx_ring *tx_ring; int ring; recv_ctx = &adapter->recv_ctx; @@ -214,8 +216,9 @@ void netxen_free_sw_resources(struct netxen_adapter *adapter) } } - if (adapter->cmd_buf_arr) - vfree(adapter->cmd_buf_arr); + tx_ring = &adapter->tx_ring; + if (tx_ring->cmd_buf_arr) + vfree(tx_ring->cmd_buf_arr); return; } @@ -224,21 +227,24 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) struct netxen_recv_context *recv_ctx; struct nx_host_rds_ring *rds_ring; struct nx_host_sds_ring *sds_ring; + struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; struct netxen_rx_buffer *rx_buf; int ring, i, num_rx_bufs; struct netxen_cmd_buffer *cmd_buf_arr; struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + tx_ring->num_desc = adapter->num_txd; cmd_buf_arr = - (struct netxen_cmd_buffer *)vmalloc(TX_BUFF_RINGSIZE(adapter)); + (struct netxen_cmd_buffer *)vmalloc(TX_BUFF_RINGSIZE(tx_ring)); if (cmd_buf_arr == NULL) { - printk(KERN_ERR "%s: Failed to allocate cmd buffer ring\n", + dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n", netdev->name); return -ENOMEM; } - memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(adapter)); - adapter->cmd_buf_arr = cmd_buf_arr; + memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring)); + tx_ring->cmd_buf_arr = cmd_buf_arr; recv_ctx = &adapter->recv_ctx; for (ring = 0; ring < adapter->max_rds_rings; ring++) { @@ -307,8 +313,6 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; sds_ring->irq = adapter->msix_entries[ring].vector; - sds_ring->clean_tx = (ring == 0); - sds_ring->post_rxd = (ring == 0); sds_ring->adapter = adapter; sds_ring->num_desc = adapter->num_rxd; @@ -990,23 +994,24 @@ netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max) /* Process Command status ring */ int netxen_process_cmd_ring(struct netxen_adapter *adapter) { - u32 last_consumer, consumer; + u32 sw_consumer, hw_consumer; int count = 0, i; struct netxen_cmd_buffer *buffer; struct pci_dev *pdev = adapter->pdev; struct net_device *netdev = adapter->netdev; struct netxen_skb_frag *frag; int done = 0; + struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; if (!spin_trylock(&adapter->tx_clean_lock)) return 1; - last_consumer = adapter->last_cmd_consumer; - barrier(); /* cmd_consumer can change underneath */ - consumer = le32_to_cpu(*(adapter->cmd_consumer)); + sw_consumer = tx_ring->sw_consumer; + barrier(); /* hw_consumer can change underneath */ + hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); - while (last_consumer != consumer) { - buffer = &adapter->cmd_buf_arr[last_consumer]; + while (sw_consumer != hw_consumer) { + buffer = &tx_ring->cmd_buf_arr[sw_consumer]; if (buffer->skb) { frag = &buffer->frag_array[0]; pci_unmap_single(pdev, frag->dma, frag->length, @@ -1024,14 +1029,13 @@ int netxen_process_cmd_ring(struct netxen_adapter *adapter) buffer->skb = NULL; } - last_consumer = get_next_index(last_consumer, - adapter->num_txd); + sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); if (++count >= MAX_STATUS_HANDLE) break; } if (count) { - adapter->last_cmd_consumer = last_consumer; + tx_ring->sw_consumer = sw_consumer; smp_mb(); if (netif_queue_stopped(netdev) && netif_running(netdev)) { netif_tx_lock(netdev); @@ -1053,9 +1057,9 @@ int netxen_process_cmd_ring(struct netxen_adapter *adapter) * There is still a possible race condition and the host could miss an * interrupt. The card has to take care of this. */ - barrier(); /* cmd_consumer can change underneath */ - consumer = le32_to_cpu(*(adapter->cmd_consumer)); - done = (last_consumer == consumer); + barrier(); /* hw_consumer can change underneath */ + hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); + done = (sw_consumer == hw_consumer); spin_unlock(&adapter->tx_clean_lock); return (done); |