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linux-stable/drivers/net/ethernet/cadence
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Daire McNamara 314cf958de net: macb: Shorten max_tx_len to 4KiB - 56 on mpfs 
On mpfs, with SRAM configured for 4 queues, setting max_tx_len
to GEM_TX_MAX_LEN=0x3f0 results multiple AMBA errors.
Setting max_tx_len to (4KiB - 56) removes those errors.

The details are described in erratum 1686 by Cadence

The max jumbo frame size is also reduced for mpfs to (4KiB - 56).

Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-13 20:46:38 +01:00
..
Kconfig ethernet: fix PTP_1588_CLOCK dependencies 2021-08-13 17:49:05 -07:00
macb.h net: macb: Shorten max_tx_len to 4KiB - 56 on mpfs 2023-05-13 20:46:38 +01:00
macb_main.c net: macb: Shorten max_tx_len to 4KiB - 56 on mpfs 2023-05-13 20:46:38 +01:00
macb_pci.c net: macb: fix use after free on rmmod 2021-09-09 10:55:44 +01:00
macb_ptp.c net: macb: Optimize reading HW timestamp 2023-04-13 22:16:09 -07:00
Makefile