gianfar: Fix Tx csum generation errata handling

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Both [eTSEC76] and [eTSEC12] errata relate to Tx checksum generation
(for some MPC83xx and MCP8548 older revisions). They require the same
workaround: manual checksum computation and insertion, and disabling
the H/W Tx csum acceleration feature (per frame) through Tx FCB
(Frame Control Block) csum offload settings.

The workaround for [eTSEC76] needs to be fixed because it currently
fails to disable H/W Tx csum insertion via FCB. This patch fixes it
and provides a common workaround implementation for both Tx csum errata.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Claudiu Manoil 2013-08-05 17:20:09 +03:00 • committed by David S. Miller

parent 7864a1adf7

commit 02d88fb4fb

1 changed files with 25 additions and 19 deletions

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drivers/net/ethernet/freescale/gianfar.c

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