On 11:15 Wed 13 Mar , Sascha Hauer wrote:
> On Wed, Mar 13, 2013 at 10:03:36AM +0100, Jean-Christophe PLAGNIOL-VILLARD
> wrote:
> > On 09:48 Wed 13 Mar , Steffen Trumtrar wrote:
> > > The function gem_recv implements a buffer "ring" that stops at filling
> > > level 10.
> > > That means, when the driver is used as gem, it stops receiving after
> > > exactly
> > > 10 packets. Instead of implementing macb_recv twice, use it also for the
> > > gem
> > > part. If there needs to be an extra recv function for the gigabit case,
> > > it can
> > > be added than.
> > > Also, first set the type of device (macb or gem) and then use functions
> > > that
> > > use this info.
> > >
> > > Tested on a Zynq7000.
> > NACK
> >
> > on gem we can receive the packet in one buffer the gem_recv implement this
> > the macb can only receive splited buffer and then you have to reconstruct
> > the
> > packet
>
> The gem received function was never used...
>
> > > static int macb_recv(struct eth_device *edev)
> > > {
> > > struct macb_device *macb = edev->priv;
> > > @@ -619,11 +588,6 @@ static int macb_probe(struct device_d *dev)
> > >
> > > macb->phy_flags = pdata->phy_flags;
> > >
> > > - macb_init_rx_buffer_size(macb, PKTSIZE);
> > > - macb->rx_buffer = dma_alloc_coherent(macb->rx_buffer_size *
> > > macb->rx_ring_size);
> > > - macb->rx_ring = dma_alloc_coherent(RX_RING_BYTES(macb));
> > > - macb->tx_ring = dma_alloc_coherent(TX_RING_BYTES);
> > > -
> > > macb->regs = dev_request_mem_region(dev, 0);
> > >
> > > /*
> > > @@ -638,12 +602,15 @@ static int macb_probe(struct device_d *dev)
> > >
> > > clk_enable(macb->pclk);
> > >
> > > - if (macb_is_gem(macb))
>
> ... because macb_is_gem() is used here ...
>
> > > - edev->recv = gem_recv;
> > > - else
> > > - edev->recv = macb_recv;
> > > macb->is_gem = read_is_gem(macb);
>
> ... but the variable is initialized here. Up to this point macb_is_gem()
> will return 0.
so this is a bug when the driver was merge to the mailine but here I does use
the gem_recv.
Best Regrards,
J.
>
> Sascha
>
>
> --
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