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Revert previous patch with subject "change mdelay to msleep and remove
from ISR path". This patch seems to have caused bigger problems than
it solved, and it didn't solve much of a problem to begin with...
Discussion about backing-out this patch can be found here:
http://marc.theaimsgroup.com/?l=linux-netdev&m=114321570402396&w=2
The git commit associated w/ the original patch is:
6ba98d311d0a4ff7dc36d8f435ce60174f4c30ec
Signed-off-by: John W. Linville <linville@tuxdriver.com
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Fixes Rhine I cards disclosing fragments of previously transmitted frames
in new transmissions.
Before transmission, any socket buffer (skb) shorter than the ethernet
minimum length of 60 bytes was zero-padded. On Rhine I cards the data can
later be copied into an aligned transmission buffer without copying this
padding. This resulted in the transmission of the frame with the extra
bytes beyond the provided content leaking the previous contents of this
buffer on to the network.
Now zero-padding is repeated in the local aligned buffer if one is used.
Following a suggestion from the via-rhine maintainer, no attempt is made
here to avoid the duplicated effort of padding the skb if it is known that
an aligned buffer will definitely be used. This is to make the change
"obviously correct" and allow it to be applied to a stable kernel if
necessary. There is no change to the flow of control and the changes are
only to the Rhine I code path.
The patch has run on an in-service Rhine-I host without incident. Frames
shorter than 60 bytes are now correctly zero-padded when captured on a
separate host. I see no unusual stats reported by ifconfig, and no unusual
log messages.
Signed-off-by: Craig Brind <craigbrind@gmail.com>
Signed-off-by: Roger Luethi <rl@hellgate.ch>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Roger Luethi <rl@hellgate.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Patch suggested by Yang Wu (pin xue <pinxue@gmail.com>).
Signed-off-by: Roger Luethi <rl@hellgate.ch>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Problems with link state detection have been reported several times in the
past months.
Denis Vlasenko did all the work tracking it down. Jeff Garzik suggested the
proper place for the fix.
When using the mii library, the driver needs to check mii->force_media
and set dev->state accordingly.
Signed-off-by: Roger Luethi <rl@hellgate.ch>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Get rid of the mdelay call in rhine_disable_linkmon. The function
is called from the via-rhine versions of mdio_read and mdio_write.
Those functions are indirectly called from rhine_check_media and
rhine_tx_timeout, both of which can be called in interrupt context.
So, create tx_timeout_task and check_media_task as instances of struct
work_struct inside of rhine_private. Then, change rhine_tx_timeout to
invoke schedule_work for tx_timeout_task (i.e. rhine_tx_timeout_task),
moving the work to process context. Also, change rhine_error (invoked
from rhine_interrupt) to invoke schedule_work for check_media_task
(i.e. rhine_check_media_task), which simply calls rhine_check media
in process context. Finally, add a call to flush_scheduled_work in
rhine_close to avoid any resource conflicts with pending work items.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Add support for ETHTOOL_GPERMADDR to via-rhine.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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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>
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Now we can change the pci core to always set this pointer, as pci drivers
should use it, not the driver core callback.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Hi Jeff,
In some messages in via-rhine.c there is a leading space
for no apparent reason. This patch removes it.
--
vda
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Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling
pci_set_dma_mask() or pci_set_consistent_dma_mask()
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>
Signed-off-by: Domen Puncer <domen@coderock.org>
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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!
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John W. Linville
Craig Brind
Adrian Bunk
Roger Luethi
Linus Torvalds
David S. Miller
Greg KH
Greg Kroah-Hartman
Denis Vlasenko
Domen Puncer