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Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/2] Add Enhanced Three-Speed Etherne

From: Alexander Graf
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH 2/2] Add Enhanced Three-Speed Ethernet Controller (eTSEC)
Date: Tue, 16 Jul 2013 17:37:07 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.3) Gecko/20120306 Thunderbird/10.0.3

On 07/16/2013 05:28 PM, Fabien Chouteau wrote:
On 07/16/2013 04:06 AM, Scott Wood wrote:
On 07/10/2013 12:10:02 PM, Fabien Chouteau wrote:
This implementation doesn't include ring priority, TCP/IP Off-Load, QoS.

Signed-off-by: Fabien Chouteau<address@hidden>
 From the code comments I gather this has been tested on VxWorks.  Has it
been tested on Linux, or anywhere else?

You're right, as I said in the cover letter, this has only been tested on 

Could you please give it a try? IIRC eTSEC support should be in upstream Linux.


+    /* ring_base = (etsec->regs[RBASEH].value&  0xF)<<  32; */
+    ring_base     += etsec->regs[RBASE0 + ring_nbr].value&  ~0x7;
+    start_bd_addr  = bd_addr = etsec->regs[RBPTR0 + ring_nbr].value&  ~0x7;
What about RBDBPH (upper bits of physical address)?  Likewise for TX.

I'm only interested in 32bits address spaces, so RBASEH, TBASEH, RBDBPH or 

Why? I thought e500mc and above can access more than 32bits of physical address space? Oh, but they're always DPAA?


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