This removes the private element from skbuff, that is only used by
HIPPI. Instead it uses skb->cb[] to hold the additional data that is
needed in the output path from hard_header to device driver.
PS: The only qdisc that might potentially corrupt this cb[] is if
netem was used over HIPPI. I will take care of that by fixing netem
to use skb->stamp. I don't expect many users of netem over HIPPI
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove the "list" member of struct sk_buff, as it is entirely
redundant. All SKB list removal callers know which list the
SKB is on, so storing this in sk_buff does nothing other than
taking up some space.
Two tricky bits were SCTP, which I took care of, and two ATM
drivers which Francois Romieu <romieu@fr.zoreil.com> fixed
up.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
This patch adds back the code that was taken out, thus re-enabling:
* The PHY Layer to initialize without crashing
* Drivers to actually connect to PHYs
* The entire PHY Control Layer
This patch is used by the gianfar driver, and other drivers which are in
development.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
With my Buffalo WLI-CF-S11G PC Card kernel oopses every time in
prism2_interrupt() when I try load the hostap module. local->hw_priv is null
during the first call to prism2_interrupt(). It feels like
interrupts are enabled too early, or something.
This patch fixes the symptom, but not the cause.
Signed-off-by: Kalle Valo <Kalle.Valo@iki.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
hostap_cs: 0.4.1-kernel (Jouni Malinen <jkmaline@cc.hut.fi>)
pcmcia: hostap_cs: invalid hash for product string "BUFFALO": is 0x1b01a57b,
should be 0x2decece3
pcmcia: see Documentation/pcmcia/devicetable.txt for details
pcmcia: hostap_cs: invalid hash for product string "WLI-CF-S11G": is
0xefd5102a, should be 0x82067c18
pcmcia: see Documentation/pcmcia/devicetable.txt for details
This patch fixes them.
Signed-off-by: Kalle Valo <Kalle.Valo@iki.fi>
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Version 0.4.4 of Host AP driver was released, so let's sync the version
number in netdev-2.6 tree.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Both revisions share the same PCI device ID and vendor ID but revision 2
of the device uses SysKonnect's chipset whereas revision 3 of the device
uses Realtek's 8169 chipset.
Credit goes to Christiaan Lutzer <mythtv.lutzer@gmail.com> for reporting
the issue and giving the actual value for the different revisions.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Rewrite the mkiss driver to make it SMP-proof following the example of
6pack.c.
Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Don't check type of sax25_family; dev_set_mac_address has already done
that before and anyway, the type to check against would have been
ARPHRD_AX25. We only got away because AF_AX25 and ARPHRD_AX25 both happen
to be defined to the same value.
Don't check sax25_ndigis either; it's value is insignificant for the
purpose of setting the MAC address and the check has shown to break
some application software for no good reason.
Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
I dropped the timer initialization bits by accident when sending the
p-persistence fix. This patch gets the driver to work again on halfduplex
links.
Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The userspace must not be able to issue ethtool command and manage the
mii before it is completely initialized. Avoid some pesky "eth%d" messages.
Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
From: Gertjan van Wingerde <gwingerde@home.nl>
Attached patch updates the definitions of the generic ieee80211 stack to
the latest versions of the published 802.11x specification suite.
Signed-off-by: Gertjan van Wingerde <gwingerde@home.nl>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
This removes one trap for a programmer, few unused macros, and one
unused struct.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
From: Imre Deak <imre.deak@nokia.com>
I had a problem where doing an open after a close left the device
unusable. netif_carrier_on should be called whenever we go to the
associated state, but this is not so in case of a close->open sequence.
Signed-off-by: Jiri Benc <jbenc@suse.cz>
From: Adrian Bunk <bunk@stusta.de>
This patch contains the following possible cleanups:
- make needlessly global code static
- remove the unused IPW_DEBUG_ENABLED
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
From: Pavel Machek <pavel@ucw.cz>
ipw2100 uses custom debug prints that are sometimes longer and always
harder to read than normal printk. They also introduced some bugs where
prefix is printed twice.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
From: Pavel Machek <pavel@ucw.cz>
ipw2100 uses strange X__ prefixes even for symbols already prefixed
by ipw2100. Fixed.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
The tg3_abort_hw() call in tg3_test_loopback() is causing lockups on
some devices. tg3_abort_hw() disables the memory arbiter, causing
tg3_reset_hw() to hang when it tries to write the pre-reset signature.
tg3_abort_hw() should only be called after the pre-reset signature has
been written. This is all done in tg3_reset_hw() so the tg3_abort_hw()
call is unnecessary and can be removed.
[ Also bump driver version and release date. -DaveM ]
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Driver version, white space, comments & other
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Add cpu cycle saver microcode to 8086:{1209/1229} other than ICH devices.
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Fixed endian bug associated with cb_i bit in xmit_prepare
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
added msleep_interruptible delay right before returning from diag_test
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Do not check Rx packet length against mtu - patch from Darren Tucker
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
airo_cs is broken on m32r; marked as such. [Proper fix would involve
separating PCI-dependent parts and making sure they don't get in the
way _and_ arranging for asm/scatterlist.h getting picked on m32r]
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
ISA parts of tms380tr are using ISA DMA helpers and should depend on
ISA_DMA_API.
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The purpose of this patch:
- Adopt the DMA API (jazzsonic, macsonic & core driver).
- Adopt the driver model (macsonic).
This part was cribbed from jazzsonic. As a consequence, macsonic once
again works as a module. Driver model is also used by the DMA calls.
- Support 16 bit cards (macsonic & core driver, also affects jazzsonic)
This code was adapted from the mac68k linux 2.2 kernel, where it has
languished for a long time.
- Support more 32-bit mac cards (macsonic)
Also from mac68k repo.
- Zero-copy buffer handling (core driver)
Provides a nice performance improvement. The new algorithm incidentally
helped to replace the old Jazz DMA code.
The patch was tested on a variety of macs (several 32-bit quadra built-in
NICs, a 16-bit LC PDS NIC and a 16-bit comm-slot NIC), and also on MIPS
Jazz.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
[PATCH] [NET] mv643xx: add workaround for HW checksum generation bug
The hardware checksum generator on the mv64xxx occasionally generates
an incorrect checksum. This patch works around the issue and enables
hardware checksum generation.
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Hi,
Patch Description:
This patch incorporates the following hardware fixes required
for Xframe II adapter.
1. New values to program the dtx_control register.
2. Disable memory controller interrupts(MC_INTR) since these
are now monitored thru' a poll routine.
3. Don't reset an XframeII card on an ECC double-bit error(It
can recover).
4. Save/restore PCI config space before/after a reset irrespective
of Xframe I or II card.
5. Bumped up the driver version no. to 2.0.3.1
Please review the patch and apply the same if it looks ok.
Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Now that all tms380 devices have a valid
struct device with dma_mask, remove dmalimit from tmsdev_init().
Kconfig: depend tms380tr and madgemc on MCA.
abyss.c, proteon.c, skisa.c, tmspci.c, tms380tr.h:
remove dmalimit parameter from tmsdev_init().
tms380tr.c: use device->dma_mask instead of dmalimit.
madgemc.c: move to new MCA API using struct device.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
A problem was reported by Grant Grundler on an HP rx8620 using IOX
Core LAN partno(A7109-6) 5701 copper NIC. The tg3 driver mistakenly
detects this NIC as having a SerDes PHY and link does not come up as a
result.
The problem was caused by an incorrectly programmed eeprom that set the
NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER bit in the NIC_SRAM_DATA_CFG location.
This patch will override the NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER bit if a
valid PHY ID is read from the MII registers on older 570x chips where
the MII interface is not used on SerDes chips. On newer chips such as
the 5780 that use MII for both copper and SerDes, SerDes detection must
rely on the eeprom.
This patch will make the SerDes detection identical to versions 3.25 and
older.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Grant Grundler <iod00d@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/e1000/e1000_main.c: In function `e1000_clean_tx_irq':
drivers/net/e1000/e1000_main.c:2774: warning: size_t format, dma_addr_t arg (arg 8)
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The multicast code of the fmvj18x_cs driver is broken.
I fixed it to work properly.
Signed-off-by: komurojun-mbn@nifty.com
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
SIS190 must select MII since it's using it.
While I was editing the Kconfig entry, I also converted the spaces to
tabs.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The Linksys EG1032 uses Realtek's 8169 chipset.
Credit goes to Bob Wilson <bwilson4web@hotmail.com> for the report.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Use msleep_interruptible() instead of delay_cycx() to guarantee the task
delays as expected. Remove the prototype and definition of delay_cycx().
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Rdiger found a bug in nv_open that explains some of the reports
with duplex mismatches:
nv_open calls nv_update_link_speed for initializing the hardware link speed
registers. If current link setting matches the values in np->linkspeed and
np->duplex, then the function does nothing.
Usually, doing nothing is the right thing, but not in nv_open: During
nv_open, the registers must be initialized because the nic was reset.
The attached patch fixes that by setting np->linkspeed to an invalid value
before calling nv_update_link_speed from nv_open.
Signed-Off-By: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The DM9000 driver is responding to ioctl() calls it should not be. This
can cause problems with the wireless tools incorrectly indentifying the
device as wireless capable, and crashing under certain operations.
This patch also moves the version printk() to the init call, so that
you only get it once for multiple devices, and to show it is loaded
if there are no defined dm9000s
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Fix DM9000 driver usage of spinlocks, which mainly came to light
when running a kernel with spinlock debugging. These come down to:
1) Un-initialised spin lock
2) Several cases of using spin_xxx(lock) and not spin_xxx(&lock)
3) move the locking around the phy reg for read/write to only
keep the lock when actually reading or writing to the phy.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
After suspend the driver needs to retest link status in case the cable
has been inserted or removed during the suspend.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
- Using the right register clearly improves chances of getting the MII
code and thus the driver working at all.
- On startup check the media type before setting up duplex or we might
spend the first 1.2s with a wrong duplex setting.
- Get rid of whitespace lines.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The flush threshold in the MAC chip should be increased.
Found while reviewing vendor version of sk98lin driver.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Some versions of the Marvell yukon generate bogus sensor warning interrupts.
The driver would flood log with these messages. Handle this situation
cleanly by masking away at boot time.
Fixes: http://bugs.gentoo.org/show_bug.cgi?id=87182
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
drivers/net/skge.c | 24 ++++++++++--------------
drivers/net/skge.h | 8 ++++++--
2 files changed, 16 insertions(+), 16 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Replace remaining WLAN_FC_* defines with the ones used in ieee80211
header file. This completes the move from hostap version of frame
control field processing to ieee80211 version.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Remove backwards compatibility define for WLAN_CAPABILITY_ESS now that
net/ieee80211.h defines this.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
IEEE 802.11 has a capability field flag called ESS, but ieee80211 had
renamed this to BSS for some reason. hostap has been using
WLAN_CAPABILITY_ESS and since that matches with the standard, lets use
it as the name for this define. Add WLAN_CAPABILITY_BSS as a backwards
compatibility name for the same bit since ieee80211 and ipw2200 are
using this and there are versions outside kernel tree that expect to
find this define name.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Replace temporary HOSTAP_FC_GET_{TYPE,STYPE} macros with the ieee80211
version of WLAN_FC_GET_{TYPE,STYPE}.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Remove unused defines that are already available from generic kernel
header files.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Replace hardware model specific #ifdef's in struct local_info with
void *hw_priv that is pointing to cs/pci/plx specific data
structure. This removes unneeded #ifdef's and as such, is a step
towards making it possible to share objects for hostap_hw.c and
hostap_download.c with cs/pci/plx drivers without having to compile
and link the same code separately for each one.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
PCI version of Prism2.5/3 has undocumented DMA support for TX/RX data,
but this seems to have some hardware bugs that prevent it from being
used properly for TX. RX side could possibly be made to work reliably.
Even though DMA support would be very useful for saving host CPU (from
about 40% to 5-10% when operating at maximum throughput), it seems to
be best to just remove this code finally. The implementation has
always been commented out by default and has received very limited
testing. The code may have already been broken number of times and I
don't have much interested in trying to verify whether it works or
not. Getting this out makes it easier to maintain the driver and
allows some cleanups that have been partly postponed because of this
experimental bus master/DMA code.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Old AP mode code for power saving was using skb->cb for couple of
flags before the more generic 802.11 TX code started using the same
buffer for struct hostap_skb_tx_data. This resulted in the power save
code corrupting the magic value in beginning of the buffer and TX code
dropping the power saved packets because of this for the case where
STAs send PS-Poll frames with PwrMgmt flag set.
This patch modifies the power save code to use the same struct
hostap_skb_tx_data as rest of the TX path in order to avoid corrupting
the data in skb->cb.
In addition, this patch reorders fields in the structure and makes
them use smaller types in order to make the structure fit in skb->cb
on 64-bit hosts.
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Suggested by Steven Rostedt, matches his patch included in e100.
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Redefined buffer_info-dma to be dma_addr_t instead of uint64
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Remove unused functions, render some variable static instead of global - based on patch from Adrian Bunk
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Ethtool cleanup patch from Stephen Hemminger
* use ADVERTISED_xxx fields when setting advertised fields
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Fix data output by ethtool -d
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Use netdev_priv() instead of netdev->priv
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Fix unnecessary link state messages
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Set RXDCTL:PTHRESH/HTHRESH to zero
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Add the device ID of the Buffalo AirStation WLI-CF-S11G
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Hi,
This is a patch to incorporate comments from earlier 12 patches.
It also fixes a few issues we found during this time.
Following is a list of changes in this patch. Item 1 incorporates
earlier comments. Issues addressed in items 2 to 4 were discovered
recently.
1. wmb() call in s2io_xmit() replaced with mmiowb().
2. The dtx_control register was earlier programmed incorrectly
for Xframe II adapter.
3. As suggested by hardware team, after a reset, in case of
Xframe II adapter, we clear certain spurious errors by
clearing PCI-X ECC status register, "detected parity error"
bit in PCI_STATUS register and PCI_STATUS bit in txpic_int register.
4. On IBM PPC platforms, we found that in the Rx buffer replenish
function, two memory writes(one to the the descriptor length and
another to the ownership) were getting reordered. This was causing
the adapter to see the ownership transfered to it before the length
was updated.
One solution was to add a wmb() but since this would turnout expensive
on some platforms if called for every descriptor, we set the ownership
bit and other fields of '2' to 'N' Rx descriptors followed by a wmb()
and then set the ownership of first descriptor ('1').
Here the value 'N' is configurable by making it a module loadable
parameter (rxsync_frequency).
(NOTE: This parameter is a power of 2).
5. Bumped up the driver version no. to 2.0.2.1
Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Raghavendra Koushik <raghavendra.koushik@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
