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linux-next/drivers/net/ethernet/altera
Andreas Oetken 71cd26e76a 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>
2015-04-20 22:01:16 -04:00
..
altera_msgdma.c Altera TSE: Fix sparse errors and warnings 2014-05-15 16:46:46 -04:00
altera_msgdma.h Altera TSE: Work around unaligned DMA receive packet issue with Altera SGDMA 2014-04-26 12:26:26 -04:00
altera_msgdmahw.h altera tse: Error-Bit on tx-avalon-stream always set. 2015-04-20 22:01:16 -04:00
altera_sgdma.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
altera_sgdma.h Altera TSE: Work around unaligned DMA receive packet issue with Altera SGDMA 2014-04-26 12:26:26 -04:00
altera_sgdmahw.h Altera TSE: Fix sparse errors and warnings 2014-05-15 16:46:46 -04:00
altera_tse_ethtool.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
altera_tse_main.c altera tse: Fix network-delays and -retransmissions after high throughput. 2015-04-17 15:13:31 -04:00
altera_tse.h Altera TSE: Fix sparse errors and warnings 2014-05-15 16:46:46 -04:00
altera_utils.c Altera TSE: Fix sparse errors and warnings 2014-05-15 16:46:46 -04:00
altera_utils.h Altera TSE: Fix sparse errors and warnings 2014-05-15 16:46:46 -04:00
Kconfig Altera TSE: ALTERA_TSE should depend on HAS_DMA 2014-05-05 13:16:22 -04:00
Makefile Altera TSE: Fix sparse errors and warnings 2014-05-15 16:46:46 -04:00