octeon_ep: fix tx dma unmap len values in SG

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[ Upstream commit 350db8a59e ]

Lengths of SG pointers are kept in the following order in
the SG entries in hardware.
 63      48|47     32|31     16|15       0
 -----------------------------------------
 |  Len 0  |  Len 1  |  Len 2  |  Len 3  |
 -----------------------------------------
 |                Ptr 0                  |
 -----------------------------------------
 |                Ptr 1                  |
 -----------------------------------------
 |                Ptr 2                  |
 -----------------------------------------
 |                Ptr 3                  |
 -----------------------------------------
Dma pointers have to be unmapped based on their
respective lengths given in this format.

Fixes: 37d79d0596 ("octeon_ep: add Tx/Rx processing and interrupt support")
Signed-off-by: Shinas Rasheed <srasheed@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Shinas Rasheed 2023-09-13 01:41:56 -07:00 • committed by Greg Kroah-Hartman

parent 66823a9025

commit 65976385d4

3 changed files with 23 additions and 9 deletions

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8

drivers/net/ethernet/marvell/octeon_ep/octep_main.c

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8

drivers/net/ethernet/marvell/octeon_ep/octep_tx.c

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16

drivers/net/ethernet/marvell/octeon_ep/octep_tx.h

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