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During a code scan for another change I discovered that this call to
pcnet32_free_ring must be removed. If the open fails due to a lack of
memory all the ring structures are removed via the call to free_ring
and a subsequent call to open will dereference a null pointer in
pcnet32_init_ring.
Please apply to 2.6.17.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The comments concerning how the pcnet32 ethernet device driver selects
the MAC addr to use are incorrect. A recent patch (in the last 3 months)
changed how the code worked, but did not change the comments.
Side comment: the new behaviour is good; I've got a pcnet32 card which
powers up with garbage in the CSR's, and a good MAC addr in the PROM.
Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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- undo some Lindent damage by indenting member names
- remove history at top of .c file, this is stored in the kernel
repo changelog (in greater detail, even).
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Boards with multiple PHYs were not being handled properly by the pcnet32
driver. This patch by Thomas Bogendoerfer with changes by me will allow
Allied Telesyn 2700FTX and 2701FTX boards to use either the copper or
the fiber interfaces. It has been tested on ia32 and ppc64 hardware.
Philippe Seewer also tested and improved the patch.
ethtool for pcnet32 already supports multiple phys.
See also bugzilla bug 4219.
Please apply to 2.6.16
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The CSR contains garbage after a coldboot on RS/6000.
One some systems (like my 44p 270) the MAC address is all FF,
on others (like my B50) it is ff:ff:ff:fd:ff:6b.
It can eventually be fixed by loading pcnet32, set the interface
into the UP state, rmmod pcnet32 and load it again. But this worked
only on the 270.
Only netbooting after a cold start provides the correct MAC address
via prom and CSR. This makes it very unreliable.
I dont know why the MAC is stored in two different places. Remove
the special case for powerpc, which was added in early 2.4 development.
Signed-off-by: Olaf Hering <olh@suse.de>
drivers/net/pcnet32.c | 5 -----
1 files changed, 5 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Some boards using the 79c976 pcnet32 chip will hang the system if the
ethtool --register-dump is performed with the device operational. The
request to read bcr30 is retried by the PCI device infinitely without
returning data, hanging the system.
Tested ia32 and ppc64.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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This patch is a better fix for Allied Telesyn 2700/2701 FX boards than
the change made in early January this year. It allows the user to
select the speed/duplex via module_param, but if no selection is made,
forces the speed to 100 FD. It fixes both Bugzilla bugs 2669 and 4551.
Tested ia32 and ppc64 by myself, and by the originator of bug 2669.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Display the name eth%d or pci_name() of device which fails to allocate
memory. When changing ring size via ethtool, it also releases the
lock before returning on error. Added comment that the caller of
pcnet32_alloc_ring must call pcnet32_free_ring on error, to avoid leak.
Tested ia32 by forcing allocation errors.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Don Fry reminded me that the pcnet32_loopback_test() asssumes the ring size
is no less than 4. The minimum ring size was changed to 4 in
pcnet32_set_ringparam() to allow the loopback test to work unchanged.
- Set minimum ring size to 4 to allow loopback test to work unchanged
- Moved variable init_block to first field in struct pcnet32_private
Signed-off-by: Hubert WS Lin <wslin@tw.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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This patch implements the set_ringparam(), one of the ethtool operations,
which allows changing tx/rx ring sizes via ethtool.
- Changed memery allocation of tx/rx ring from static to dynamic
- Implemented set_ringparam()
- Tested on i386 and ppc64
Signed-off-by: Hubert WS Lin <wslin@tw.ibm.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Add support for ETHTOOL_GPERMADDR to pcnet32.
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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Use msleep_interruptible() instead of schedule_timeout() to
guarantee the task delays as expected.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>
Signed-off-by: Domen Puncer <domen@coderock.org>
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When running the loopback test, resources are not properly released on
completion. This patch frees all transmit resources after running the
loopback test. Tested on ia32 and ppc64 hardware.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
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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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