Harini Katakam f822e9c4ff net: macb: Limit maximum GEM TX length in TSO ... GEM_MAX_TX_LEN currently resolves to 0x3FF8 for any IP version supporting TSO with full 14bits of length field in payload descriptor. But an IP errata causes false amba_error (bit 6 of ISR) when length in payload descriptors is specified above 16387. The error occurs because the DMA falsely concludes that there is not enough space in SRAM for incoming payload. These errors were observed continuously under stress of large packets using iperf on a version where SRAM was 16K for each queue. This errata will be documented shortly and affects all versions since TSO functionality was added. Hence limit the max length to 0x3FC0 (rounded). Signed-off-by: Harini Katakam <harini.katakam@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2020-02-05 14:46:03 +01:00
..
Kconfig	net: macb: convert to phylink	2019-11-13 11:45:42 -08:00
macb_main.c	net: macb: Limit maximum GEM TX length in TSO	2020-02-05 14:46:03 +01:00
macb_pci.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 341	2019-06-05 17:37:07 +02:00
macb_ptp.c	net: macb: Fix SUBNS increment and increase resolution	2019-06-29 11:09:18 -07:00
macb.h	net: macb: add support for C45 MDIO read/write	2020-01-09 10:48:29 -08:00
Makefile