On Tue, Jun 28, 2011 at 3:00 AM, Mohammed Shafi
<shafi.wireless@xxxxxxxxx> wrote:
> On Mon, Jun 27, 2011 at 11:07 PM, Fred Matthews <fredmm@xxxxxxxxxxxxx> wrote:
>> Hi all,
>>
>> Much appreciated Mohammed Shafi, disabling aggregation works when
>> replacing those lines with
>> sc->sc_flags &= ~SC_OP_TXAGGR;
>> sc->sc_flags &= ~SC_OP_RXAGGR;
>> only issue is I must always recompile compat-wireless to
>> re-enable/disable it again. I tried to port it using debugfs to be
>> able to enable and disable at runtime but ath9k kept rebooting.
>
> I am not sure we can enable/disable aggregation via debugfs, these
> flags seem are set at initialization and based on this lot of things
> happen in tx-path, initializing TID structure, ampdu action, rate
> control etc.
>
The project I am on we have to deal with a situation where we change
the hardware environment and thus have to change some of the
initialization parameters. Obviously the environment is a little
unique, but I believe this should work for you. Before the changes are
made we do a
if (sc->nvifs > 0) {
printk(KERN_INFO "ath9k:card has an open interface\n");
return -EBUSY;
}
pdev = to_pci_dev(sc->dev);
pdev->driver->remove(pdev);
then we make our hardware change and then do a
pci_id = pci_match_id(pdev->driver->id_table, pdev);
err = pdev->driver->probe(pdev, pci_id);
which gives us a re-initialized instance of ath_hw and ath_softc for the radio
Hope this helps!
V/r,
Daniel P. Smith
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