diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_init.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_init.c | 68 |
1 files changed, 32 insertions, 36 deletions
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index a3203644b48..ca7c8d8050c 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -308,7 +308,6 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) } memset(rds_ring->rx_buf_arr, 0, RCV_BUFFSIZE); INIT_LIST_HEAD(&rds_ring->free_list); - rds_ring->begin_alloc = 0; /* * Now go through all of them, set reference handles * and put them in the queues. @@ -1435,7 +1434,6 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) struct rcv_desc *pdesc; struct netxen_rx_buffer *buffer; int count = 0; - int index = 0; netxen_ctx_msg msg = 0; dma_addr_t dma; struct list_head *head; @@ -1443,7 +1441,6 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) rds_ring = &recv_ctx->rds_rings[ringid]; producer = rds_ring->producer; - index = rds_ring->begin_alloc; head = &rds_ring->free_list; /* We can start writing rx descriptors into the phantom memory. */ @@ -1451,39 +1448,37 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) skb = dev_alloc_skb(rds_ring->skb_size); if (unlikely(!skb)) { - rds_ring->begin_alloc = index; break; } + if (!adapter->ahw.cut_through) + skb_reserve(skb, 2); + + dma = pci_map_single(pdev, skb->data, + rds_ring->dma_size, PCI_DMA_FROMDEVICE); + if (pci_dma_mapping_error(pdev, dma)) { + dev_kfree_skb_any(skb); + break; + } + + count++; buffer = list_entry(head->next, struct netxen_rx_buffer, list); list_del(&buffer->list); - count++; /* now there should be no failure */ - pdesc = &rds_ring->desc_head[producer]; - - if (!adapter->ahw.cut_through) - skb_reserve(skb, 2); - /* This will be setup when we receive the - * buffer after it has been filled FSL TBD TBD - * skb->dev = netdev; - */ - dma = pci_map_single(pdev, skb->data, rds_ring->dma_size, - PCI_DMA_FROMDEVICE); - pdesc->addr_buffer = cpu_to_le64(dma); buffer->skb = skb; buffer->state = NETXEN_BUFFER_BUSY; buffer->dma = dma; + /* make a rcv descriptor */ + pdesc = &rds_ring->desc_head[producer]; + pdesc->addr_buffer = cpu_to_le64(dma); pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); - DPRINTK(INFO, "done writing descripter\n"); - producer = - get_next_index(producer, rds_ring->max_rx_desc_count); - index = get_next_index(index, rds_ring->max_rx_desc_count); + + producer = get_next_index(producer, rds_ring->max_rx_desc_count); } /* if we did allocate buffers, then write the count to Phantom */ if (count) { - rds_ring->begin_alloc = index; rds_ring->producer = producer; /* Window = 1 */ adapter->pci_write_normalize(adapter, @@ -1522,49 +1517,50 @@ static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, struct rcv_desc *pdesc; struct netxen_rx_buffer *buffer; int count = 0; - int index = 0; struct list_head *head; + dma_addr_t dma; rds_ring = &recv_ctx->rds_rings[ringid]; producer = rds_ring->producer; - index = rds_ring->begin_alloc; head = &rds_ring->free_list; /* We can start writing rx descriptors into the phantom memory. */ while (!list_empty(head)) { skb = dev_alloc_skb(rds_ring->skb_size); if (unlikely(!skb)) { - rds_ring->begin_alloc = index; break; } + if (!adapter->ahw.cut_through) + skb_reserve(skb, 2); + + dma = pci_map_single(pdev, skb->data, + rds_ring->dma_size, PCI_DMA_FROMDEVICE); + if (pci_dma_mapping_error(pdev, dma)) { + dev_kfree_skb_any(skb); + break; + } + + count++; buffer = list_entry(head->next, struct netxen_rx_buffer, list); list_del(&buffer->list); - count++; /* now there should be no failure */ - pdesc = &rds_ring->desc_head[producer]; - if (!adapter->ahw.cut_through) - skb_reserve(skb, 2); buffer->skb = skb; buffer->state = NETXEN_BUFFER_BUSY; - buffer->dma = pci_map_single(pdev, skb->data, - rds_ring->dma_size, - PCI_DMA_FROMDEVICE); + buffer->dma = dma; /* make a rcv descriptor */ + pdesc = &rds_ring->desc_head[producer]; pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); pdesc->addr_buffer = cpu_to_le64(buffer->dma); - producer = - get_next_index(producer, rds_ring->max_rx_desc_count); - index = get_next_index(index, rds_ring->max_rx_desc_count); - buffer = &rds_ring->rx_buf_arr[index]; + + producer = get_next_index(producer, rds_ring->max_rx_desc_count); } /* if we did allocate buffers, then write the count to Phantom */ if (count) { - rds_ring->begin_alloc = index; rds_ring->producer = producer; /* Window = 1 */ adapter->pci_write_normalize(adapter, |