LSI supported mps(4) driver available

[Stas Orlov]

> Out of those six Drive, one drive is detected as "1.5Gbps" (see below part in dmesg log)
>
>        PHY[8].AttachedDevHandle: 0x0009
>        PHY[8].LinkRate: 1.5Gbps (0x80)
>        PHY[8].PhyStatus: NewTargetAdde
>
> LSI IR does not support mix of mix of different link speed Drivers in a single Volume.
> I am not sure if this is root cause of the issue, but definetly worth to try why that Particular drive is
> At 1.5 Gbps link ?
>
> Can you try to see if it is cable which is causing link to 1.5 OR Drive itself has 1.5 Gbps max speed. ?
>

All six of them are SEAGATE ST9300603SS FS62, 1.5Gbps speed is quite odd.

Can't check cabeling right now, I'll exclude that drive from tests for now