e1000: add and use e1000_rx_buffer info for Rx

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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>

...

This commit is contained in:

Florian Westphal 2014-09-03 13:34:26 +00:00 • committed by Jeff Kirsher

parent 2b294b1868

commit 93f0afe9ce

3 changed files with 27 additions and 23 deletions

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8

drivers/net/ethernet/intel/e1000/e1000.h

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7

drivers/net/ethernet/intel/e1000/e1000_ethtool.c

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35

drivers/net/ethernet/intel/e1000/e1000_main.c

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