eth: fbnic: support TCP segmentation offload

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Add TSO support to the driver. Device can handle unencapsulated or
IPv6-in-IPv6 packets. Any other tunnel stacks are handled with
GSO partial.

Validate that the packet can be offloaded in ndo_features_check.
Main thing we need to check for is that the header geometry can
be expressed in the decriptor fields (offsets aren't too large).

Report number of TSO super-packets via the qstat API.

Link: https://patch.msgid.link/20250216174109.2808351-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Jakub Kicinski 2025-02-16 09:41:09 -08:00

parent b5e489003a

commit b0b0f52042

4 changed files with 163 additions and 12 deletions

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25

drivers/net/ethernet/meta/fbnic/fbnic_netdev.c

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3

drivers/net/ethernet/meta/fbnic/fbnic_netdev.h

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146

drivers/net/ethernet/meta/fbnic/fbnic_txrx.c

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1

drivers/net/ethernet/meta/fbnic/fbnic_txrx.h

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