tree 01eaf41af56d406f1783f2bc8f7f70812759a130
parent 8f4cccbbd92f2ad0ddbbc498ef7cee2a1c3defe9
author Ben Hutchings <bhutchings@solarflare.com> 1337284340 +0100
committer Ben Hutchings <bhutchings@solarflare.com> 1345831226 +0100

sfc: Refactor struct efx_tx_buffer to use a flags field

Add a flags field to struct efx_tx_buffer, replacing the
continuation and map_single booleans.

Since a single descriptor cannot be both a TSO header and the last
descriptor for an skb, unionise efx_tx_buffer::{skb,tsoh} and add
flags for validity of these fields.

Clear all flags in free buffers (whereas previously the continuation
flag would be set).

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>