Hi,

I've had same problem as Artturi 
(https://marc.info/?l=openbsd-bugs&m=150071170630651&w=2), but on a Olinuxino 
A10 Lime.  After trying u-boot 17.03 I noticed that TX speeds were very slow 
(~3KB/s).

Here is what the packets look like on the other machine (192.168.1.17):

192.168.1.3.1484 > 192.168.1.17.30000: S 3400651399:3400651399(0) win 16384
192.168.1.17.30000 > 192.168.1.3.1484: S 2057093871:2057093871(0) ack 
3400651400 win 28960
192.168.1.3.1484 > 192.168.1.17.30000: . ack 1 win 256
0b:90:d0:de:44:1c 5f:bd:8a:25:ff:c6 69ef 118: 
                         e506 fdff 29fe dfef 0094 3fff 0894 ffee
                         a0a9 f9ab 8446 dcf3 ba20 5c47 0249 f3de
                         c90a d7d1 0028 9ef4 9381 8b69 7103 8ef4
                         6e68 f7
192.168.1.3.1484 > 192.168.1.17.30000: . 1:1449(1448) ack 1 win 256
192.168.1.17.30000 > 192.168.1.3.1484: . ack 1449 win 249
0b:90:d0:de:44:1c 5f:bd:8a:25:ff:c6 69ef 1514: 
                         e506 fdff 29fe dfef 0094 3fff 0894 ffee
                         a0a9 f9ab 8446 dcf3 ba20 5c47 0249 f3de
                         c90a d7d1 0028 9ef4 9381 8b69 7103 8ef4
                         6e68 f7
192.168.1.3.1484 > 192.168.1.17.30000: . 1501:2949(1448) ack 1 win 256
192.168.1.17.30000 > 192.168.1.3.1484: . ack 1449 win 272
192.168.1.3.1484 > 192.168.1.17.30000: . 4397:5845(1448) ack 1 win 256
192.168.1.17.30000 > 192.168.1.3.1484: . ack 1449 win 295



On the Olinuxino Lime (192.168.1.3) they look OK:

192.168.1.3.1484 > 192.168.1.17.30000: S 3400651399:3400651399(0) win 16384 
192.168.1.17.30000 > 192.168.1.3.1484: S 2057093871:2057093871(0) ack 
3400651400 win 28960 
192.168.1.3.1484 > 192.168.1.17.30000: . ack 1 win 256
192.168.1.3.1484 > 192.168.1.17.30000: . 1:1449(1448) ack 1 win 256
192.168.1.3.1484 > 192.168.1.17.30000: P 1449:1501(52) ack 1 win 256
192.168.1.3.1484 > 192.168.1.17.30000: . 1501:2949(1448) ack 1 win 256
192.168.1.3.1484 > 192.168.1.17.30000: . 2949:4397(1448) ack 1 win 256
192.168.1.3.1484 > 192.168.1.17.30000: . 4397:5845(1448) ack 1 win 256
192.168.1.3.1484 > 192.168.1.17.30000: . 5845:7293(1448) ack 1 win 256
192.168.1.17.30000 > 192.168.1.3.1484: . ack 1449 win 249
192.168.1.3.1484 > 192.168.1.17.30000: . 7293:8741(1448) ack 1 win 256 
192.168.1.17.30000 > 192.168.1.3.1484: . ack 1449 win 272 
192.168.1.3.1484 > 192.168.1.17.30000: . 8741:10189(1448) ack 1 win 256 
192.168.1.17.30000 > 192.168.1.3.1484: . ack 1449 win 295 
192.168.1.3.1484 > 192.168.1.17.30000: . 10189:11637(1448) ack 1 win 256 
192.168.1.17.30000 > 192.168.1.3.1484: . ack 1449 win 317 


I believe this might be caused by sxie driver using two TX FIFOs:  I hacked a 
bit the kernel and when using only 1 TX FIFO it did not send any mangled frames 
(though packets were getting dropped by ifq_enqueue).  I also added some 
counters to keep track which queue was being used and the numbers of mangled 
frames were close the number of times the second FIFO was used.


I would like to investigate further, but I would like to know if this could be 
caused by the older u-boot or if it seems like an actual fault with the driver?

Has anybody had good TX speed using sxie?  I saw John DiMarco also reported a 
TX speed of about 4KB/s but that was over a year ago 
(https://marc.info/?l=openbsd-arm&m=147378434716041&w=2).

I booted a debian image and it run at a few *MB/s so I'm pretty confident it's 
not a hw problem.


Many Thanks,
Eduard



U-Boot SPL 2017.03 (Apr 03 2017 - 11:14:00)
DRAM: 512 MiB
CPU: 912000000Hz, AXI/AHB/APB: 3/2/2
Trying to boot from MMC1


U-Boot 2017.03 (Apr 03 2017 - 11:14:00 -0600) Allwinner Technology

CPU:   Allwinner A10 (SUN4I)
Model: Olimex A10-OLinuXino-LIME
I2C:   ready
DRAM:  512 MiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
SCSI:  SATA link 0 timeout.
AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: ncq stag pm led clo only pmp pio slum part ccc apst
Net:   eth0: ethernet@01c0b000
starting USB...
USB0:   USB EHCI 1.00
USB1:   USB OHCI 1.0
USB2:   USB EHCI 1.00
USB3:   USB OHCI 1.0
scanning bus 0 for devices... 1 USB Device(s) found
scanning bus 2 for devices... 1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
reading /sun4i-a10-olinuxino-lime.dtb
26581 bytes read in 30 ms (865.2 KiB/s)
Found EFI removable media binary efi/boot/bootarm.efi
reading efi/boot/bootarm.efi
67436 bytes read in 42 ms (1.5 MiB/s)
## Starting EFI application at 42000000 ...
Scanning disks on scsi...
Scanning disks on usb...
Scanning disks on mmc...
MMC Device 1 not found
MMC Device 2 not found
MMC Device 3 not found
Found 6 disks
>> OpenBSD/armv7 BOOTARM 1.0
boot>
booting sd0a:/bsd: 3935884+166328+562136 [273417+90+522736+245831]=0x5785f4

OpenBSD/armv7 booting ...
arg0 0xc08785f4 arg1 0x0 arg2 0x48000000
Allocating page tables
freestart = 0x40879000, free_pages = 128903 (0x0001f787)
IRQ stack: p0x408a7000 v0xc08a7000
ABT stack: p0x408a8000 v0xc08a8000
UND stack: p0x408a9000 v0xc08a9000
SVC stack: p0x408aa000 v0xc08aa000
Creating L1 page table at 0x4087c000
Mapping kernel
Constructing L2 page tables
undefined page pmap [ using 1042532 bytes of bsd ELF symbol table ]
board type: 0
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2017 OpenBSD. All rights reserved.  https://www.OpenBSD.org

OpenBSD 6.2-current (GENERIC) #122: Sat Nov 11 11:05:42 MST 2017
    dera...@armv7.openbsd.org:/usr/src/sys/arch/armv7/compile/GENERIC
real mem  = 536870912 (512MB)
avail mem = 517271552 (493MB)
mainbus0 at root: Olimex A10-OLinuXino-LIME
cpu0 at mainbus0: ARM Cortex-A8 r3p2 (ARMv7)
cpu0: DC enabled IC enabled WB disabled EABT branch prediction enabled
cpu0: 32KB(64b/l,4way) I-cache, 32KB(64b/l,4way) wr-back D-cache
sxiccmu0 at mainbus0
simplebus0 at mainbus0: "soc"
sxipio0 at simplebus0: 175 pins
sxitimer0 at simplebus0: cntrtimer @ 24000KHz
sxie0 at simplebus0, address 02:02:0a:81:e6:6c
rlphy0 at sxie0 phy 1: RTL8201L 10/100 PHY, rev. 1
sximmc0 at simplebus0
sdmmc0 at sximmc0: 4-bit, sd high-speed, mmc high-speed, dma
ehci0 at simplebus0

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