Commit Graph

70 Commits

Author SHA1 Message Date
Olof Johansson 1145d954a5 pasemi_mac: Disable interface on close
Turns out we never disable the interface. It doesn't really cause
any problems since the channel is off, but it's still better to do it
this way.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-03 04:27:55 -08:00
Olof Johansson ef1ea0b424 pasemi_mac: add support for setting MTU
Currently keeping it at 1500 bytes or below since jumbo frames need
special checksum offload on TX.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-03 04:27:54 -08:00
Olof Johansson 5cea73b0f7 pasemi_mac: Add support for changing mac address
Straightforward. It used to be hardcoded and impossible to override
with ifconfig.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-03 04:27:53 -08:00
Olof Johansson b0cd2f9016 pasemi_mac: Don't enable RX/TX without a link (if possible)
pasemi_mac: Don't enable RX/TX without a link (if possible)

Don't enable RX/TX of packets until we have a link, since there's a chance
we'll just get RX frame errors, etc.

The case where we don't have a PHY we can't do much about: Just enable
it and deal with errors as they come in.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:27 -08:00
Olof Johansson 8304b633c5 pasemi_mac: Print warning when not attaching to a PHY
pasemi_mac: Print warning when not attaching to a PHY

Print a warning on the console when not connecting to a phy for an interface.
It turns out to be a pretty common problem when someone gets the MDIO info
wrong in their device tree, resulting in the macs running at a fixed 1Gbit FD.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:26 -08:00
Olof Johansson 5d8949448b pasemi_mac: Remove SKB copy/recycle logic
pasemi_mac: Remove SKB copy/recycle logic

It doesn't really buy us much, since copying is about as expensive
as the allocation in the first place. Just remove it for now.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:26 -08:00
Olof Johansson 7e9916e9dd pasemi_mac: SKB unmap optimization
pasemi_mac: SKB unmap optimization

Avoid touching skb_shinfo() in the unmap path, since it turns out to
normally cause cache misses and delays. instead, save number of fragments
in the TX_RING_INFO structures since that's all that's needed anyway.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:25 -08:00
Olof Johansson 28ae79f531 pasemi_mac: Software-based LRO support
pasemi_mac: Software-based LRO support

Implement LRO for pasemi_mac. Pretty straightforward.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:24 -08:00
Olof Johansson 906674abab pasemi_mac: Improve RX interrupt mitigation
pasemi_mac: Improve RX interrupt mitigation

Currently the receive side interrupts will go off on the reception of
a packet, NAPI will poll the ring and keep polling as long as there's
a decent amount of packets to receive.

This is less than optimal, especially for LRO where it's better if we
have a more substantial amount of packets to process at once, to get
the real LRO benefits.

So, set the count threshold to a higher value and use the timeout feature
that will give us an interrupt even if not enough packets have come in
to set off the count threshold.

FIXME: It'd be real nice to have ethtool support for users to tune this
at runtime.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:24 -08:00
Olof Johansson 61cec3bddc pasemi_mac: Fix TX cleaning
pasemi_mac: Fix TX cleaning

This is a bit awkward. We don't have a timer-delayed interrupt on TX
complete, but we have a count threshold. So set that reasonably high
(32 packets), and schedule the NAPI poll when it goes off. Also bump a
regular timer that will take care of rotting packets for the last 1..31
ones in case we don't trigger a TX interrupt (and there's no RX activity
that would otherwise trigger the poll).

The longer-term fix is to separate TX from RX NAPI and do two separate
poll loops.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:23 -08:00
Olof Johansson 5c15332bed pasemi_mac: performance tweaks
pasemi_mac: performance tweaks

* Seems like we do better with a smaller RX ring, probably because chances of
  still having the SKB cached are better
* Const-ify variables to get better code generation and fewer reloads
* Move prefetching around a little, and try to prefetch the whole SKB
* Set NETIF_F_HIGHDMA
* Misc other minor tweaks

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:22 -08:00
Olof Johansson 34c20624ce pasemi_mac: Convert to new dma library
pasemi_mac: Convert to new dma library

Convert the pasemi_mac driver to the new platform global DMA manaagement
library. This also does a couple of other minor cleanups w.r.t. channel
management.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:21 -08:00
Olof Johansson 40afa53158 pasemi_mac: Move register definitions to include/asm-powerpc
pasemi_mac: Move register definitions to include/asm-powerpc

Move the common register formats and descriptor layouts from
drivers/net/pasemi_mac.h to include/asm-poewrpc/pasemi_dma.h

Previously only the ethernet driver was using them, but other drivers
are coming up that will also use them, so it makes sense to share the
constants.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:20 -08:00
Olof Johansson 72b05b9940 pasemi_mac: RX/TX ring management cleanup
pasemi_mac: RX/TX ring management cleanup

Prepare a bit for supporting multiple TX queues by cleaning up some
of the ring management and shuffle things around a bit.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:04:19 -08:00
Olof Johansson 4352d82647 pasemi_mac: Fix reuse of free'd skb
Turns out we're freeing the skb when we detect CRC error, but we're
not clearing out info->skb. We could either clear it and have the stack
reallocate it, or just leave it and the rx ring refill code will reuse
the one that was allocated.

Reusing a freed skb obviously caused some nasty crashes of various kind,
as reported by Brent Baude and David Woodhouse.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-04 14:53:49 -05:00
David Woodhouse 0581d3f530 Don't claim to do IPv6 checksum offload
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-04 14:53:07 -05:00
Olof Johansson 32bee77653 pasemi_mac: Fix CRC checks
Make sure we don't feed packets with bad CRC up the network stack,
and discount the packet length as reported from the MAC for the CRC
field.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-10 04:25:14 -05:00
Olof Johansson dbd62af7de pasemi_mac: Don't set replace-source-address descriptor bits
Don't use the "replace source address with local MAC address" bits, since
it causes problems on some variations of the hardware due to an erratum.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-10 04:25:14 -05:00
Olof Johansson de0523863e pasemi_mac: fix typo
Add missing &:

drivers/net/pasemi_mac.c: In function 'pasemi_mac_clean_rx':
drivers/net/pasemi_mac.c:553: warning: passing argument 1 of 'prefetch'
makes pointer from integer without a cast

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-23 20:18:13 -04:00
Olof Johansson af289e803f pasemi_mac: enable iommu support
pasemi_mac: enable iommu support

Enable IOMMU support for pasemi_mac, but avoid using it on non-partitioned
systems for performance reasons.

The user can override this by selecting the PPC_PASEMI_IOMMU_DMA_FORCE
configuration option.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:30 -07:00
Olof Johansson b5254eee79 pasemi_mac: use buffer index pointer in clean_rx()
pasemi_mac: use buffer index pointer in clean_rx()

Use the new features in B0 for buffer ring index on the receive side. This
means we no longer have to search in the ring for where the buffer
came from.

Also cleanup the RX cleaning side a little, while I was at it.

Note: Pre-B0 hardware is no longer supported, and needs a pile of other
workarounds that are not being submitted for mainline inclusion. So the
fact that this breaks old hardware is not a problem at this time.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:27 -07:00
Olof Johansson 9e81d331f2 pasemi_mac: clear out old errors on interface open
pasemi_mac: clear out old errors on interface open

Clear out any pending errors when an interface is brought up. Since the bits
are sticky, they might be from interface shutdown time after firmware has
used it, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:27 -07:00
Olof Johansson 7ddeae2c6c pasemi_mac: update todo list
pasemi_mac: update todo list

Remove some stale todo items that have been taken care of. Add a couple
of upcoming ones.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:26 -07:00
Olof Johansson ad5da10a64 pasemi_mac: further performance tweaks
pasemi_mac: further performance tweaks

Misc driver tweaks for pasemi_mac:
	* Increase ring size (really needed mostly on 10G)
	* Take out an unneeded barrier
	* Move around a few prefetches and reorder a few calls
	* Don't try to clean on full tx buffer, just let things
	  take their course and stop the queue directly
	* Avoid filling on the same line as the interface is
	  working on to reduce cache line bouncing
	* Avoid unneeded clearing of software state (and make the
	  interface shutdown code handle it)
	* Fix up some of the tx ring wrap logic.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:25 -07:00
Olof Johansson 8dc121a4b6 pasemi_mac: add local skb alignment
pasemi_mac: add local skb alignment

Add local SKB alignment to pasemi_mac, since ppc64 in general has it at 0
because of design flaws in some of the IBM server bridge chips. However,
for PWRficient doing the unaligned copies is more expensive than doing
unaligned DMA so make sure the data is aligned instead.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:25 -07:00
Olof Johansson 9a50bebda9 pasemi_mac: workaround for erratum 5971
pasemi_mac: workaround for erratum 5971

Implement workarounds for erratum 5971, where L2 hints aren't considered
properly unless the way hint is enabled on the interface. Since L2 isn't
setup to dedicate a way to headers, we need to reset the packet count
by hand so it won't run out of credits.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:24 -07:00
Olof Johansson ad3c20d1ab pasemi_mac: implement sg support
pasemi_mac: implement sg support

Implement SG support for pasemi_mac

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:24 -07:00
Olof Johansson fc9e4d2a93 pasemi_mac: rework ring management
pasemi_mac: rework ring management

Rework ring management, switching to an opaque ring format instead of
the struct-based descriptor+pointer setup, since it will be needed for
SG support.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:23 -07:00
Olof Johansson 18eec69542 pasemi_mac: fix bug in receive buffer dma mapping
pasemi_mac: fix bug in receive buffer dma mapping

skb->len isn't actually set to the size of the allocated skb, so don't
try to use it when figuring out how much to map.

(This hasn't surfaced as a real bug because we effectively disable
translation for the interface, but it still needs fixing for the future)

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:22 -07:00
Olof Johansson 69c29d8918 pasemi_mac: basic error checking
pasemi_mac: basic error checking

Add some rudimentary error checking to pasemi_mac.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:54:22 -07:00
Olof Johansson 928773c23a pasemi_mac: pass in count of buffers to replenish rx ring with
pasemi_mac: pass in count of buffers to replenish rx ring with

Refactor replenish_rx_ring to take an argument for how many entries to
fill. Since it's normally available from where it's called anyway, this
is just simpler. It also removes the awkward logic to try to figure out
if we're filling for the first time or not.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:53:44 -07:00
Olof Johansson 3603376653 pasemi_mac: don't enable rx before there are buffers on the ring
pasemi_mac: don't enable rx before there are buffers on the ring

Reorder initialization of the DMA channels and the interface. Before there
was a time window when the interface was enabled before DMA was enabled.
Also, now there will always be RX buffers available at the time the
MAC interface is enabled, to avoid temporary out-of-buffer errors for the
very first packets (on busy networks).

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:53:43 -07:00
Olof Johansson ca7e235f5e pasemi_mac: flags as passed to spin_*_irqsave() should be unsigned long
pasemi_mac: flags as passed to spin_*_irqsave() should be unsigned long.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:53:43 -07:00
Olof Johansson 6a290e3d5d pasemi_mac: set interface speed correctly on XAUI ports
pasemi_mac: set interface speed correctly on XAUI ports

Set interface speed for XAUI to 10G per default, not 1G.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:53:42 -07:00
Satyam Sharma dcffde5345 [PASEMI_MAC]: remove unused function
drivers/net/pasemi_mac.c: At top level:
drivers/net/pasemi_mac.c:89: warning: 'read_iob_reg' defined but not used

Signed-off-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:52:54 -07:00
Joe Perches 0795af5729 [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()
This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:42 -07:00
Jeff Garzik 09f75cd7bf [NET] drivers/net: statistics cleanup #1 -- save memory and shrink code
We now have struct net_device_stats embedded in struct net_device,
and the default ->get_stats() hook does the obvious thing for us.

Run through drivers/net/* and remove the driver-local storage of
statistics, and driver-local ->get_stats() hook where applicable.

This was just the low-hanging fruit in drivers/net; plenty more drivers
remain to be updated.

[ Resolved conflicts with napi_struct changes and fix sunqe build
  regression... -DaveM ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:16 -07:00
Ralf Baechle 10d024c1b2 [NET]: Nuke SET_MODULE_OWNER macro.
It's been a useless no-op for long enough in 2.6 so I figured it's time to
remove it.  The number of people that could object because they're
maintaining unified 2.4 and 2.6 drivers is probably rather small.

[ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:13 -07:00
Olof Johansson 829185e97f pasemi_mac: Clean TX ring in poll
Unfortunately there's no timeout for how long a packet can sit on
the TX ring after completion before an interrupt is generated, and
we want to have a threshold that's larger than one packet per interrupt.

So we have to have a timer that occasionally cleans the TX ring even
though there hasn't been an interrupt. Instead of setting up a dedicated
timer for this, just clean it in the NAPI poll routine instead.

[ Resolved conflicts with napi_struct changes... -DaveM ]

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:00 -07:00
Olof Johansson 6fba848a9a pasemi_mac: Enable LLTX
Enable LLTX on pasemi_mac: we're already doing sufficient locking
in the driver to enable it.

[ Resolved merge conflicts with napi_struct changes... -DaveM ]

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:50:59 -07:00
Olof Johansson 38bf3184e8 pasemi_mac: Fix RX checksum flags
RX side flag to use is CHECKSUM_UNNECESSARY, not CHECKSUM_COMPLETE.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:59 -07:00
Olof Johansson 021fa22e01 pasemi_mac: Fix TX ring wrap checking
The old logic didn't detect full (tx) ring cases properly, causing
overruns and general badness. Clean it up a bit and abstract out the
ring size checks, always making sure to leave 1 slot open.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:58 -07:00
Olof Johansson 02df6cfa09 pasemi_mac: Batch up TX buffer frees
Postpone pci unmap and skb free of the transmitted buffers to outside of
the tx ring lock, batching them up 32 at a time.

Also increase the count threshold to 128.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:58 -07:00
Olof Johansson 26fcfa95ae pasemi_mac: RX performance tweaks
Various RX performance tweaks, do some explicit prefetching of packet
data, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:57 -07:00
Olof Johansson 73344863e4 pasemi_mac: Fix memcpy amount for short receives
Fix up memcpy for short receives.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:56 -07:00
Olof Johansson c0efd52b8b pasemi_mac: Enable L2 caching of packet headers
Enable settings to target l2 for the first few cachelines of the packet, since
we'll access them to get to the various headers.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:56 -07:00
Olof Johansson b6e05a1b67 pasemi_mac: Stop using the pci config space accessors for register read/writes
Move away from using the pci config access functions for simple register
access.  Our device has all of the registers in the config space (hey,
from the hardware point of view it looks reasonable :-), so we need to
somehow get to it. Newer firmwares have it in the device tree such that
we can just get it and ioremap it there (in case it ever moves in future
products). For now, provide a hardcoded fallback for older firmwares.

[ Resolved napi_struct conflicts... -DaveM ]

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:50:55 -07:00
Olof Johansson a85b94222d pasemi_mac: Abstract out register access
Abstract out the PCI config read/write accesses into reg read/write ones,
still calling the pci accessors on the back end.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:50:55 -07:00
Stephen Hemminger bea3348eef [NET]: Make NAPI polling independent of struct net_device objects.
Several devices have multiple independant RX queues per net
device, and some have a single interrupt doorbell for several
queues.

In either case, it's easier to support layouts like that if the
structure representing the poll is independant from the net
device itself.

The signature of the ->poll() call back goes from:

	int foo_poll(struct net_device *dev, int *budget)

to

	int foo_poll(struct napi_struct *napi, int budget)

The caller is returned the number of RX packets processed (or
the number of "NAPI credits" consumed if you want to get
abstract).  The callee no longer messes around bumping
dev->quota, *budget, etc. because that is all handled in the
caller upon return.

The napi_struct is to be embedded in the device driver private data
structures.

Furthermore, it is the driver's responsibility to disable all NAPI
instances in it's ->stop() device close handler.  Since the
napi_struct is privatized into the driver's private data structures,
only the driver knows how to get at all of the napi_struct instances
it may have per-device.

With lots of help and suggestions from Rusty Russell, Roland Dreier,
Michael Chan, Jeff Garzik, and Jamal Hadi Salim.

Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra,
Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan.

[ Ported to current tree and all drivers converted.  Integrated
  Stephen's follow-on kerneldoc additions, and restored poll_list
  handling to the old style to fix mutual exclusion issues.  -DaveM ]

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:47:45 -07:00
Olof Johansson 7c00db3d28 pasemi_mac: Fix TX interrupt threshold
It was mistakenly set to interrupt on the second packet instead of first, causing
some interesting latency behaviour.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08 22:16:45 -04:00