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(parent: b95f6fb) | patch
dpaa_eth: DPAA SGT needs to be 256B
authorMadalin Bucur <madalin.bucur@nxp.com>
Thu, 28 Jun 2018 12:26:51 +0000 (15:26 +0300)
committerDavid S. Miller <davem@davemloft.net>
Sat, 30 Jun 2018 09:51:06 +0000 (18:51 +0900)
commit595e802e53f24642a145cf7f3e4ac9afab4c21ec
treea2105e0eabebf2e5b624af4d2f680b2d80f47737tree | snapshot
parentb95f6fbc8e15803a596ca5e5e21008fba29694c6commit | diff
dpaa_eth: DPAA SGT needs to be 256B

The DPAA HW requires that at least 256 bytes from the start of the
first scatter-gather table entry are allocated and accessible. The
hardware reads the maximum size the table can have in one access,
thus requiring that the allocation and mapping to be done for the
maximum size of 256B even if there is a smaller number of entries
in the table.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c diff | blob | history
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