On 21/07/2017 13:22, Marc Gonzalez wrote:
> Changes from v1
> - Drop support for disabling RX and TX clock delays
> (it breaks some boards). Document the issues instead.
> - Split the MAC patch in two unrelated parts
> - Fix the vantage 1172 DTS
>
> Marc Gonzalez (4):
> net: phy: at803x: Document RGMII RX and TX clock delay issues
> net: ethernet: nb8800: Set RGMII_MODE for all RGMII modes
> net: ethernet: nb8800: Fix RGMII TX clock delay setup
> ARM: dts: tango4: Add RGMII RX and TX clock delays
>
> arch/arm/boot/dts/tango4-vantage-1172.dts | 2 +-
> drivers/net/ethernet/aurora/nb8800.c | 8 +++++---
> drivers/net/phy/at803x.c | 12 ++++++++++++
> 3 files changed, 18 insertions(+), 4 deletions(-)
Rudimentary test:
ip addr add 172.27.64.45/18 brd 172.27.127.255 dev eth0
ip link set eth0 up
sleep 10 ## autoneg should be complete
time fping -c 10000 -b 1450 -p 1 -i 1 -q 172.27.64.1
ethtool -S eth0
cat /proc/interrupts
# test_eth.sh
[ 13.276242] ENTER at803x_enable_rx_delay
[ 13.280283] BEFORE=82ee
[ 13.282735] AFTER=82ee
[ 13.285462] ENTER at803x_enable_tx_delay
[ 13.289567] BEFORE=2d47
[ 13.292018] AFTER=2d47
[ 16.663266] nb8800 26000.ethernet eth0: Link is Up - 1Gbps/Full - flow
control rx/tx
172.27.64.1 : xmt/rcv/%loss = 10000/10000/0%, min/avg/max = 0.18/0.21/3.79
real 0m10.688s
user 0m0.106s
sys 0m0.472s
NIC statistics:
rx_bytes_ok: 14960128
rx_frames_ok: 10002
rx_undersize_frames: 0
rx_fragment_frames: 0
rx_64_byte_frames: 2
rx_127_byte_frames: 0
rx_255_byte_frames: 0
rx_511_byte_frames: 0
rx_1023_byte_frames: 0
rx_max_size_frames: 10000
rx_oversize_frames: 0
rx_bad_fcs_frames: 0
rx_broadcast_frames: 0
rx_multicast_frames: 0
rx_control_frames: 0
rx_pause_frames: 0
rx_unsup_control_frames: 0
rx_align_error_frames: 0
rx_overrun_frames: 0
rx_jabber_frames: 0
rx_bytes: 14960128
rx_frames: 10002
tx_bytes_ok: 14960128
tx_frames_ok: 10002
tx_64_byte_frames: 2
tx_127_byte_frames: 0
tx_255_byte_frames: 0
tx_511_byte_frames: 0
tx_1023_byte_frames: 0
tx_max_size_frames: 10000
tx_oversize_frames: 0
tx_broadcast_frames: 1
tx_multicast_frames: 0
tx_control_frames: 0
tx_pause_frames: 0
tx_underrun_frames: 0
tx_single_collision_frames: 0
tx_multi_collision_frames: 0
tx_deferred_collision_frames: 0
tx_late_collision_frames: 0
tx_excessive_collision_frames: 0
tx_bytes: 14960128
tx_frames: 10002
tx_collisions: 0
CPU0 CPU1
19: 10825 983 GIC-0 29 Edge twd
20: 85 0 irq0 1 Level ttyS0
21: 0 0 irq0 60 Level mmc0
22: 228 0 irq0 8 Level mmc1
25: 20005 0 irq0 38 Level eth0
28: 1 0 irq0 37 Edge 26000.nb8800-mii:04
IPI0: 0 0 CPU wakeup interrupts
IPI1: 0 0 Timer broadcast interrupts
IPI2: 1183 1725 Rescheduling interrupts
IPI3: 0 1 Function call interrupts
IPI4: 0 0 CPU stop interrupts
IPI5: 1 0 IRQ work interrupts
IPI6: 0 0 completion interrupts
Err: 0
fping caps at 1000 packets per second, which limits
its usefulness as a benchmarking tool.
Regards.
