Commit Graph

5 Commits

Author SHA1 Message Date
Vasily Averin
7380a78a97 sis900: come alive after temporary memory shortage
1) Forgotten counter incrementation in sis900_rx() in case
     it doesn't get memory for skb, that leads to whole interface failure.
     Problem is accompanied with messages:
    eth0: Memory squeeze,deferring packet.
    eth0: NULL pointer encountered in Rx ring, skipping

2) If counter cur_rx overflows and there'll be temporary memory problems
     buffer can't be recreated later, when memory IS available.

3) Limit the work in handler to prevent the endless packets processing
   if new packets are generated faster then handled.

Signed-off-by: Konstantin Khorenko <khorenko@sw.ru>
Signed-off-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-28 16:46:35 -04:00
David S. Miller
689be43945 [NET]: Remove gratuitous use of skb->tail in network drivers.
Many drivers use skb->tail unnecessarily.

In these situations, the code roughly looks like:

	dev = dev_alloc_skb(...);

	[optional] skb_reserve(skb, ...);

	... skb->tail ...

But even if the skb_reserve() happens, skb->data equals
skb->tail.  So it doesn't make any sense to use anything
other than skb->data in these cases.

Another case was the s2io.c driver directly mucking with
the skb->data and skb->tail pointers.  It really just wanted
to do an skb_reserve(), so that's what the code was changed
to do instead.

Another reason I'm making this change as it allows some SKB
cleanups I have planned simpler to merge.  In those cleanups,
skb->head, skb->tail, and skb->end pointers are removed, and
replaced with skb->head_room and skb->tail_room integers.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
2005-06-28 15:25:31 -07:00
Tobias Klauser
12b279f9c0 [PATCH] net/sis900: Use the DMA_32BIT_MASK constant
Use the DMA_32BIT_MASK constant from dma-mapping.h when calling
pci_set_dma_mask() or pci_set_consistent_dma_mask() instead of custom
macros.
This patch includes dma-mapping.h explicitly because it caused errors
on some architectures otherwise.
See http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for details

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
2005-06-26 18:14:31 -04:00
Daniele Venzano
da369b01d4 [PATCH] More ethtool support for sis900 and warning fix
Add support to sis900 for the following ethtool ops:
        - get_link
        - get_settings
        - set_settings
        - nway_reset
  
  Signed-off-by: Daniele Venzano <webvenza@libero.it>
  Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-05-12 20:13:14 -04:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00