From: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
Date: Wed, 4 Jul 2018 16:54:05 +0530
>
> Also I tried replacing readl() API with readw()API (as HBA FW will
> send 16 bit data at a time) as shown below and still I see same issue,
>
> MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
> u16 reply1;
> reply1 = readw(&ioc->chip->Doorbell);
> reply[1] = reply1;
>
> printk("LSI debug.. 0x%x, 0x%x, 0x%x \n", reply1, reply[1]);
> writel(0, &ioc->chip->HostInterruptStatus);
>
> printk("LSI MsgLength :%d\n", default_reply->MsgLength);
>
> And I got below output where message length is wrong, when I execute
> above code on SPARC64 machine,
It's the ordering of the u8 objects in the structure that is the problem,
on big endian they need to be swapped.
