Re: Problem found: kaweth fails to work on 2.6.12-rc[456]

[Wakko Warner <wakko@animx.eu.org>]

Here's my modified int_callback:
static void int_callback(struct urb *u, struct pt_regs *regs)
{
        struct kaweth_device *kaweth = u->context;
        int act_state;

printk(KERN_INFO "kaweth: begin callback\n");
printk(KERN_INFO "kaweth: u->status: %d\n", u->status);
        switch (u->status) {
        case 0:                 /* success */
                break;
        case -ECONNRESET:       /* unlink */
        case -ENOENT:   
        case -ESHUTDOWN:
                return;
        /* -EPIPE:  should clear the halt */
        default:                /* error */
                goto resubmit;
        }

        /* we check the link state to report changes */
        if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET]
printk(KERN_INFO "kaweth: Link state change.  kaweth->linkstate: %d act_state:
        kaweth->linkstate, act_state);
                if (!act_state) {
printk(KERN_INFO "kaweth: netif_carrier_on\n");
                        netif_carrier_on(kaweth->net);
                } else {
printk(KERN_INFO "kaweth: netif_carrier_off\n");
                        netif_carrier_off(kaweth->net);
                }

                kaweth->linkstate = act_state;
printk(KERN_INFO "kaweth: new link state: %d\n", act_state);
        }
resubmit:
        kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC);
printk(KERN_INFO "kaweth: end callback\n");
}

Results (after ifconfig up, ethernet cable was plugged in at the time):
Jun 14 20:50:25 gonzales kernel: [80756.691742] kaweth: begin callback
Jun 14 20:50:25 gonzales kernel: [80756.691754] kaweth: u->status: 0
Jun 14 20:50:25 gonzales kernel: [80756.691759] kaweth: Link state change.  kaweth->linkstate: 0 act_state: 2
Jun 14 20:50:25 gonzales kernel: [80756.691764] kaweth: netif_carrier_off
Jun 14 20:50:25 gonzales kernel: [80756.691769] kaweth: new link state: 2
Jun 14 20:50:25 gonzales kernel: [80756.691776] kaweth: end callback

the next thing was:
Jun 14 20:50:25 gonzales kernel: [80756.819793] kaweth: begin callback
Jun 14 20:50:25 gonzales kernel: [80756.819800] kaweth: u->status: 0
Jun 14 20:50:25 gonzales kernel: [80756.819807] kaweth: end callback
many times, last occurence:
Jun 14 20:50:36 gonzales kernel: [80767.576134] kaweth: begin callback
Jun 14 20:50:36 gonzales kernel: [80767.576143] kaweth: u->status: 0
Jun 14 20:50:36 gonzales kernel: [80767.576157] kaweth: end callback

then I ifconfig down since it was spewing that information:
Jun 14 20:50:36 gonzales kernel: [80767.618157] kaweth: begin callback
Jun 14 20:50:36 gonzales kernel: [80767.618172] kaweth: u->status: -2

I assume it didn't print the end since the status was -2 (not sure what -2 is)

I'm working off a different ethernet card to stay on line while I debug.
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