net: mvpp2: do not unmap TSO headers buffers

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The TSO header buffers are coming from a per cpu pool and should not
be unmapped as they are reused. The PPv2 driver was unmapping all
descriptors buffers unconditionally. This patch fixes this by checking
the buffers dma addresses before unmapping them, and by not unmapping
those who are located in the TSO header pool.

Fixes: 186cd4d4e4 ("net: mvpp2: software tso support")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Antoine Tenart 2017-10-23 15:24:30 +02:00 • committed by David S. Miller

parent 822eaf7cfb

commit 2092026788

1 changed files with 13 additions and 4 deletions

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17

drivers/net/ethernet/marvell/mvpp2.c

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