Well, I tested, it is necessary to modify netif->remaining_credit.
So question left
1. currently I use atomic64_t, is it necessary
2. Could rmmmod netback and insmod netback when apply this patch?
thx
From: tinnycloud@xxxxxxxxxxx
To: xen-devel@xxxxxxxxxxxxxxxxxxx
CC: keir@xxxxxxx; daniel.stodden@xxxxxxxxxx; jeremy@xxxxxxxx
Subject: A Patch for modify DomU network transmit rate dynamically
Date: Thu, 4 Nov 2010 11:09:55 +0800
Hi :
I've written a patch which supports dynamically update domU netif transmit rate.
But after I finish it, I have some questiones on the patch itself.
1. It seems I don't need to update netif->remaining_credit, since in netback,c: tx_add_credit()
will update automatically on every transmit, so all I need to do is update netif->credit_bytes
and netif->credit_usec, right? Also, am I do the right way?
2. I notice that netback is also a module, so I think it can be rmmod or insmod, right? If so
I can apply this patch online(with no affect on the running VM)
Could someone help me to confirm this, many thanks.
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