[ofw] RE: Possible IPoIB DMA problems

[Anh Duong]

Alex,

 

cl_get_physaddr has nothing to do with the mapping.  It just retrieves
the address that was previous mapped by whatever methods.

 

Anh

 

________________________________

From: Alex Estrin 
Sent: Thursday, August 21, 2008 12:28 PM
To: Anh Duong; 'ofw at lists.openfabrics.org'
Cc: 'Stan C. Smith'; John Russo; 'ftillier at windows.microsoft.com';
'Tzachi Dar'; Usha Srinivasan
Subject: RE: Possible IPoIB DMA problems

 

Anh,

>From your examples ... these are the places where appropriate physical
address is taken from virtual.

preparing send WR.

....

p_desc->local_ds[1].vaddr = cl_get_physaddr( p_ib_arp );

.....

 

/* Setup the first local data segment (used for the IPoIB header). */

p_desc->local_ds[0].vaddr = cl_get_physaddr( &p_port->hdr[hdr_idx] );

 

Thanks,

Alex

 

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