sfc: remove Software TSO

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It gives no advantage over GSO now that xmit_more exists.  If we find
 ourselves unable to handle a TSO skb (because our TXQ doesn't have a
 TSOv2 context and the NIC doesn't support TSOv1), hand it back to GSO.
 Also do that if the TSO handler fails with EINVAL for any other reason.
As Falcon-architecture NICs don't support any firmware-assisted TSO,
 they no longer advertise TSO feature flags at all.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Edward Cree 2016-11-17 10:52:36 +00:00 • committed by David S. Miller

parent e638ee1d0a

commit 46d1efd852

6 changed files with 154 additions and 211 deletions

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15

drivers/net/ethernet/sfc/ef10.c

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38

drivers/net/ethernet/sfc/efx.c

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1

drivers/net/ethernet/sfc/ethtool.c

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5

drivers/net/ethernet/sfc/net_driver.h

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46

drivers/net/ethernet/sfc/tx.c

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258

drivers/net/ethernet/sfc/tx_tso.c

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