This patch completely reworks the RX path in order to be
more accurate about what is going on with the MAC.
We no longer read the error from the MLSR register instead read
the descriptor status register which reflects, the error per descriptor.
We now allocate skbs on the fly in r6040_rx, and we handle allocation
failure instead of simply dropping the packet. Remove the
rx_free_desc counter of r6040_private structure since we
allocate skbs in the RX path.
r6040_rx_buf_alloc is now removed and becomes unuseless.
Signed-Off-By: Joerg Albert <jal2@gmx.de>
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
We did not call napi_disabled when putting down the interface
which should be done. Finally initialize lp->dev when everything
is set.
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Rework the RX buffers allocation function so that we do not
leak memory in the case we could not allocate skbs for the
RX path. Propagate the errors to the r6040_up function
where we call the RX buffers allocation function.
Also rename the r6040_alloc_txbufs function to
r6040_init_txbufs, to reflect what it really does.
Signed-Off-By: Joerg Albert <jal2@gmx.de>
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add a helper function which only modifies R6040 MAC registers
use it when we timeout, and on adapter initialization. Fix
the scheduling while atomic but in the timeout routine due
to the reallocation of rx/tx buffers.
Signed-Off-By: Joerg Albert <jal2@gmx.de>
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch fixes a null pointer access in r6040_rx due
to lp->dev not being initialized.
Fix the TX timeouts, TX irq was not re-enabled on RX irq
Signed-Off-By: Joerg Albert <jal2@gmx.de>
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Prefix all functions inside the r6040 driver with r6040 to
avoid namespace clashing.
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Taking sizeof the result of sizeof is quite strange and does not seem to be
what is wanted here.
This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
expression E;
@@
- sizeof (
sizeof (E)
- )
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Compared to other places in the kernel, I think that this driver misuses
the function round_jiffies.
Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
- use netdev_alloc_skb
- remove an useless variable in the IRQ handler
- remove an unused private structure member
- fix a spelling mistake
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
r6040_init_ring_desc moves around but it is kept unchanged.
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
- whitespaces vs tabs
- use 80 cols
- use if_mii
- use netdev_priv
- remove useless cast to void *
- PCI device id does not need to be globally available
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
drivers/net/r6040.c: In function 'rx_buf_alloc':
drivers/net/r6040.c:262: warning: passing argument 2 of 'pci_map_single' makes pointer from integer without a cast
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
This patch adds support for the RDC R6040 MAC we can find in the RDC
R-321x System-on-chips.
Signed-off-by: Sten Wang <sten.wang@rdc.com.tw>
Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Florian Fainelli