diff options
| author |   Florian Westphal <fw@strlen.de> | 2014-09-03 13:34:26 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-09-12 01:35:51 -0700 |
| commit | 93f0afe9ce9cb095f1fcb23da8a5897f85d61275 (patch) | |
| tree | eb599e78c3295c13c1f6bdf56f6533a98c81121d /drivers/net/ethernet/intel/e1000/e1000_ethtool.c | |
| parent | e1000: perform copybreak ahead of DMA unmap (diff) | |
| download | linux-dev-93f0afe9ce9cb095f1fcb23da8a5897f85d61275.tar.xz linux-dev-93f0afe9ce9cb095f1fcb23da8a5897f85d61275.zip | |
e1000: add and use e1000_rx_buffer info for Rx
e1000 uses the same metadata struct for Rx and Tx. But Tx and Rx have
different requirements.
For Rx, we only need to store a buffer and a DMA address.
Follow-up patch will remove skb for Rx, bringing rx_buffer_info down
to 16 bytes on x86_64.
[ buffer_info is 48 bytes ]
Signed-off-by: Florian Westphal <fw@strlen.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000/e1000_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000/e1000_ethtool.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c index 9b50272824a1..5ebc2407595b 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c +++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c @@ -968,7 +968,7 @@ static void e1000_free_desc_rings(struct e1000_adapter *adapter) if (rxdr->buffer_info[i].dma) dma_unmap_single(&pdev->dev, rxdr->buffer_info[i].dma, - rxdr->buffer_info[i].length, + E1000_RXBUFFER_2048, DMA_FROM_DEVICE); if (rxdr->buffer_info[i].skb) dev_kfree_skb(rxdr->buffer_info[i].skb); @@ -1065,7 +1065,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter) if (!rxdr->count) rxdr->count = E1000_DEFAULT_RXD; - rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer), + rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_rx_buffer), GFP_KERNEL); if (!rxdr->buffer_info) { ret_val = 5; @@ -1104,7 +1104,6 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter) } skb_reserve(skb, NET_IP_ALIGN); rxdr->buffer_info[i].skb = skb; - rxdr->buffer_info[i].length = E1000_RXBUFFER_2048; rxdr->buffer_info[i].dma = dma_map_single(&pdev->dev, skb->data, E1000_RXBUFFER_2048, DMA_FROM_DEVICE); @@ -1440,7 +1439,7 @@ static int e1000_run_loopback_test(struct e1000_adapter *adapter) do { /* receive the sent packets */ dma_sync_single_for_cpu(&pdev->dev, rxdr->buffer_info[l].dma, - rxdr->buffer_info[l].length, + E1000_RXBUFFER_2048, DMA_FROM_DEVICE); ret_val = e1000_check_lbtest_frame( |