ice: Implement transmit and NAPI support

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This patch implements ice_start_xmit (the handler for ndo_start_xmit) and
related functions. ice_start_xmit ultimately calls ice_tx_map, where the
Tx descriptor is built and posted to the hardware by bumping the ring tail.

This patch also implements ice_napi_poll, which is invoked when there's an
interrupt on the VSI's queues. The interrupt can be due to either a
completed Tx or an Rx event. In case of a completed Tx/Rx event, resources
are reclaimed. Additionally, in case of an Rx event, the skb is fetched
and passed up to the network stack.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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This commit is contained in:

Anirudh Venkataramanan 2018-03-20 07:58:14 -07:00 • committed by Jeff Kirsher

parent cdedef59de

commit 2b245cb294

5 changed files with 1171 additions and 2 deletions

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1

drivers/net/ethernet/intel/ice/ice.h

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46

drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h

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55

drivers/net/ethernet/intel/ice/ice_main.c

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1026

drivers/net/ethernet/intel/ice/ice_txrx.c

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45

drivers/net/ethernet/intel/ice/ice_txrx.h

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