Re: satalink(4) on sparc64

I have:

siisata0 at pci1 dev 2 function 0: CMD Technology SiI3124 SATALink (rev. 0x02)
siisata0: interrupting at ivec 744
siisata0: SiI3124, 3.0Gb/s
siisata0: 32-bit 66MHz PCI
atabus0 at siisata0 channel 0
atabus1 at siisata0 channel 1
atabus2 at siisata0 channel 2
atabus3 at siisata0 channel 3
siisata0 port 0: device present, speed: 3.0Gb/s
siisata0 port 1: device present, speed: 3.0Gb/s
wd0 at atabus0 drive 0
wd0: <TOSHIBA HDWE160>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 5589 GB, 11628021 cyl, 16 head, 63 sec, 512 bytes/sect x 11721045168 sectors
[..]
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100), WRITE DMA FUA, NCQ (32 tags)
wd0(siisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) (using DMA), NCQ (30 tags)
wd1 at atabus1 drive 0
wd1: <Samsung SSD 850 PRO 256GB>
wd1: drive supports 1-sector PIO transfers, LBA48 addressing
wd1: 238 GB, 496149 cyl, 16 head, 63 sec, 512 bytes/sect x 500118192 sectors
[..]
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), WRITE DMA FUA, NCQ (32 tags)
wd1(siisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) (using DMA), NCQ (30 tags)

This is on a SunBlade 2500 running -current. The use_ncq sysctl nodes are
all 1.

When writing to the raw device on the real hard disk:

[/tmp] whoever-brings-the-night # dd if=/dev/zero bs=1m count=1000 of=/dev/rdk5
1000+0 records in
1000+0 records out
1048576000 bytes transferred in 8.891 secs (117936790 bytes/sec)

When writing to the swap partition on the SSD:

[/tmp] whoever-brings-the-night # dd if=/dev/zero bs=1m count=1000 of=/dev/rdk2
1000+0 records in
1000+0 records out
1048576000 bytes transferred in 8.587 secs (122112029 bytes/sec)

Both devices have write-back cache enabled (this machine has a UPS).

Martin