Re: Problem with packt transmission

[Ahmed A <ahmedcali@xxxxxxxxx>]

Hello,

I have a few questions regarding the PCI information
that is printed when the "lspci -vv" command is used. 
My question is specific to the "Status:" field.  I
will use the following output of my lspci to ask my
quesitons:

>lspci -vv

>Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-,
DC=simple, DMMRBC=0, DMOST=0,...

1. Does the above output mean that the card (device)
does or does not operate in 64 bit?  133MHz?   

2. What does the dash (-) next to 64bit , and 133MHz
mean?  I have seen sometimes a plus (+) next to a
capability.  What does the (-) and (+) signify?

3.  Form my reading and understanding of the PCI
register space (first 64 bytes), there is no specific
bit/register I can read to find out if a PCI-X device
is running at 133/100/166 MHz speed, and 32/64 bit. 
Is this correct?

4. How does lspci know then if a device is running at
what speed, and if 32/64 bit?

Thanks,
Ahmed.



	
		
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