e1000: remove CRC bytes from measured packet length
After removing the hardware CRC stripping which causes problems with SOL and related issues, we need to compensate for this changed size. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
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1 changed files with 9 additions and 1 deletions
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@ -3673,6 +3673,9 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
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length = le16_to_cpu(rx_desc->length);
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/* adjust length to remove Ethernet CRC */
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length -= 4;
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if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
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/* All receives must fit into a single buffer */
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E1000_DBG("%s: Receive packet consumed multiple"
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@ -3877,8 +3880,9 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
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pci_dma_sync_single_for_device(pdev,
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ps_page_dma->ps_page_dma[0],
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PAGE_SIZE, PCI_DMA_FROMDEVICE);
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/* remove the CRC */
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l1 -= 4;
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skb_put(skb, l1);
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length += l1;
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goto copydone;
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} /* if */
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}
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@ -3897,6 +3901,10 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
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skb->truesize += length;
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}
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/* strip the ethernet crc, problem is we're using pages now so
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* this whole operation can get a little cpu intensive */
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pskb_trim(skb, skb->len - 4);
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copydone:
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e1000_rx_checksum(adapter, staterr,
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le16_to_cpu(rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
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