bnxt: support transmit and free of aggregation buffers

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This patch adds the following features:
- Support for XDP_TX and XDP_DROP action when using xdp_buff
  with frags
- Support for freeing all frags attached to an xdp_buff
- Cleanup of TX ring buffers after transmits complete
- Slight change in definition of bnxt_sw_tx_bd since nr_frags
  and RX producer may both need to be used
- Clear out skb_shared_info at the end of the buffer

v2: Fix uninitialized variable warning in bnxt_xdp_buff_frags_free().

Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Andy Gospodarek 2022-04-08 03:59:05 -04:00 • committed by David S. Miller

parent 1dc4c557bf

commit a7559bc8c1

5 changed files with 126 additions and 23 deletions

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18

drivers/net/ethernet/broadcom/bnxt/bnxt.c

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7

drivers/net/ethernet/broadcom/bnxt/bnxt.h

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2

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

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117

drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c

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5

drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.h

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