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author | Andreas Oetken | 2015-04-21 00:16:38 +0200 |
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committer | David S. Miller | 2015-04-21 04:01:16 +0200 |
commit | 71cd26e76a9514715df7880db0a8f7c37c17149a (patch) | |
tree | d5b4569142e55730bbdf3881cd4569506d5a4120 /block/noop-iosched.c | |
parent | net: dsa: mv88e6xxx: use PORT_DEFAULT_VLAN (diff) | |
download | kernel-qcow2-linux-71cd26e76a9514715df7880db0a8f7c37c17149a.tar.gz kernel-qcow2-linux-71cd26e76a9514715df7880db0a8f7c37c17149a.tar.xz kernel-qcow2-linux-71cd26e76a9514715df7880db0a8f7c37c17149a.zip |
altera tse: Error-Bit on tx-avalon-stream always set.
The Error-Bit on the avalon streaming interface of the
tx-dma-channel was always set. In SGMII configurations
this leads to error-symbols on the PCS and packet-rejection
on the receiver side (e.g. SGMII/1000Base-X connected switch).
This only applies to the tse-configuration with MSGDMA.
This issue was detected and fixed on a custom board with
a direct connection to a Marvell switch in SGMII-PHY-Mode.
(incl. custom patches for SGMII-PCS).
According to the datasheet if ff_tx_err (avalon-streaming)
is set it is forwarded to gm_tx_err. As a result the PCS
is forwarding the error by sending a "/V/"-caracter.
Signed-off-by: Andreas Oetken <ennoerlangen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'block/noop-iosched.c')
0 files changed, 0 insertions, 0 deletions