diff options
| -rw-r--r-- | drivers/net/qlcnic/qlcnic.h | 2 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_ethtool.c | 2 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_init.c | 30 |
3 files changed, 13 insertions, 21 deletions
diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h index 99ccdd8ac419..86e47811c25b 100644 --- a/drivers/net/qlcnic/qlcnic.h +++ b/drivers/net/qlcnic/qlcnic.h @@ -381,7 +381,6 @@ struct qlcnic_rx_buffer { struct sk_buff *skb; u64 dma; u16 ref_handle; - u16 state; }; /* Board types */ @@ -423,7 +422,6 @@ struct qlcnic_adapter_stats { u64 xmit_on; u64 xmit_off; u64 skb_alloc_failure; - u64 null_skb; u64 null_rxbuf; u64 rx_dma_map_error; u64 tx_dma_map_error; diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c index 3e4822ad5a80..a4f112022715 100644 --- a/drivers/net/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/qlcnic/qlcnic_ethtool.c @@ -69,8 +69,6 @@ static const struct qlcnic_stats qlcnic_gstrings_stats[] = { QLC_SIZEOF(stats.xmit_off), QLC_OFF(stats.xmit_off)}, {"skb_alloc_failure", QLC_SIZEOF(stats.skb_alloc_failure), QLC_OFF(stats.skb_alloc_failure)}, - {"null skb", - QLC_SIZEOF(stats.null_skb), QLC_OFF(stats.null_skb)}, {"null rxbuf", QLC_SIZEOF(stats.null_rxbuf), QLC_OFF(stats.null_rxbuf)}, {"rx dma map error", QLC_SIZEOF(stats.rx_dma_map_error), diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c index 058ce61501c3..1c3d5a90d21a 100644 --- a/drivers/net/qlcnic/qlcnic_init.c +++ b/drivers/net/qlcnic/qlcnic_init.c @@ -112,14 +112,15 @@ void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter) rds_ring = &recv_ctx->rds_rings[ring]; for (i = 0; i < rds_ring->num_desc; ++i) { rx_buf = &(rds_ring->rx_buf_arr[i]); - if (rx_buf->state == QLCNIC_BUFFER_FREE) + if (rx_buf->skb == NULL) continue; + pci_unmap_single(adapter->pdev, rx_buf->dma, rds_ring->dma_size, PCI_DMA_FROMDEVICE); - if (rx_buf->skb != NULL) - dev_kfree_skb_any(rx_buf->skb); + + dev_kfree_skb_any(rx_buf->skb); } } } @@ -266,7 +267,6 @@ int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter) list_add_tail(&rx_buf->list, &rds_ring->free_list); rx_buf->ref_handle = i; - rx_buf->state = QLCNIC_BUFFER_FREE; rx_buf++; } spin_lock_init(&rds_ring->lock); @@ -1281,14 +1281,12 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter, dma_addr_t dma; struct pci_dev *pdev = adapter->pdev; - buffer->skb = dev_alloc_skb(rds_ring->skb_size); - if (!buffer->skb) { + skb = dev_alloc_skb(rds_ring->skb_size); + if (!skb) { adapter->stats.skb_alloc_failure++; return -ENOMEM; } - skb = buffer->skb; - skb_reserve(skb, 2); dma = pci_map_single(pdev, skb->data, @@ -1297,13 +1295,11 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter, if (pci_dma_mapping_error(pdev, dma)) { adapter->stats.rx_dma_map_error++; dev_kfree_skb_any(skb); - buffer->skb = NULL; return -ENOMEM; } buffer->skb = skb; buffer->dma = dma; - buffer->state = QLCNIC_BUFFER_BUSY; return 0; } @@ -1316,14 +1312,15 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter, buffer = &rds_ring->rx_buf_arr[index]; + if (unlikely(buffer->skb == NULL)) { + WARN_ON(1); + return NULL; + } + pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size, PCI_DMA_FROMDEVICE); skb = buffer->skb; - if (!skb) { - adapter->stats.null_skb++; - goto no_skb; - } if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) { adapter->stats.csummed++; @@ -1335,8 +1332,7 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter, skb->dev = adapter->netdev; buffer->skb = NULL; -no_skb: - buffer->state = QLCNIC_BUFFER_FREE; + return skb; } @@ -1511,7 +1507,7 @@ qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max) WARN_ON(desc_cnt > 1); - if (rxbuf) + if (likely(rxbuf)) list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); else adapter->stats.null_rxbuf++; |
