linux

iv/linux

History

Shenwei Wang 5e34480773 net: fec: fix the unhandled context fault from smmu

When repeatedly changing the interface link speed using the command below:

ethtool -s eth0 speed 100 duplex full
ethtool -s eth0 speed 1000 duplex full

The following errors may sometimes be reported by the ARM SMMU driver:

[ 5395.035364] fec 5b040000.ethernet eth0: Link is Down
[ 5395.039255] arm-smmu 51400000.iommu: Unhandled context fault:
fsr=0x402, iova=0x00000000, fsynr=0x100001, cbfrsynra=0x852, cb=2
[ 5398.108460] fec 5b040000.ethernet eth0: Link is Up - 100Mbps/Full -
flow control off

It is identified that the FEC driver does not properly stop the TX queue
during the link speed transitions, and this results in the invalid virtual
I/O address translations from the SMMU and causes the context faults.

Fixes: dbc64a8ea231 ("net: fec: move calls to quiesce/resume packet processing out of fec_restart()")
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Link: https://lore.kernel.org/r/20240123165141.2008104-1-shenwei.wang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

2024-01-25 11:22:27 +01:00

dpaa

eth: dpaa: add missing net/xdp.h include

2023-08-03 16:17:34 -07:00

dpaa2

dpaa2-switch: cleanup the egress flood of an unused FDB

2023-12-23 01:18:59 +00:00

enetc

net: fill in MODULE_DESCRIPTION()s for enetc

2024-01-24 15:12:20 -08:00

fman

net: fman: convert to .mac_get_caps()