We intend this patch to improve spidernet interrupt handling to be
more strict. We had following problem and this patch solves it.
-when CONFIG_DEBUG_SHIRQ=y, request_irq() calls handler().
-when spider_net_open() is called, it calls request_irq() which calls
spider_net_interrupt().
-if some specific interrupt bit is set at this timing, it calls
netif_rx_schedule() and spider_net_poll() is scheduled.
-spider_net_open() calls netif_poll_enable() which clears the bit
__LINK_STATE_RX_SCHED.
-when spider_net_poll() is called, it calls netif_rx_complete() which
causes BUG_ON() because __LINK_STATE_RX_SCHED is not set.
Signed-off-by: Kou Ishizaki <[email protected]>
Signed-off-by: Linas Vepstas <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
The 3cSOHO100-TX needs a mdio_sync() before mdio_read() to read the MII
transceiver registers properly. Adding EXTRA_PREAMBLE to drv_flags of the
3cSOHO100-TX will force this.
This problem exists already for years (I checked back to 2.6.8).
Setting duplex for the 3cSOHO100-TX was more or less a random process.
Till 2.6.15 it was more likely that the diver ends up in half
duplex mode, after the code change in 2.6.16 it was more likely
to end up in full duplex mode. I wonder why nobody noticed this earier.
Hopefully addresses
Bug 7454 3c59x (3cSOHO100-TX Hurricane) slow network bug
http://bugzilla.kernel.org/show_bug.cgi?id=7454
and
Bug 3654 3cSOHO100-TX: No MII transceiver present
http://bugzilla.kernel.org/show_bug.cgi?id=3654
Cc: Jonas Sandberg <[email protected]>
Cc: Jon Sanchez <[email protected]>
Signed-off-by: Steffen Klassert <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
If packet larger than MTU is received, the driver uses hardware to
truncate the packet. Use the status registers to catch/drop them.
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
Simplify receive buffer refill logic. Rather than trying to update
incrementally; do receive ring refill at end of receive processing.
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
This patch avoids generating another IRQ if more packets
arrive while in the NAPI poll routine. Before marking device as
finished, it rechecks that the status ring is empty.
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
Add an optional debug interface for displaying state of transmit/receive
rings. Creates a file debugfs/sky2/ethX for each device that is up.
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
Make sky2 handle carrier similar to other drivers,
eliminate some possible races in carrier state transistions.
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
This patch restores a couple of workarounds from 2.6.16:
* restart transmit moderation timer in case it expires during IRQ routine
* default to having 10 HZ watchdog timer.
At this point it more important not to hang than to worry about the
power cost.
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
so that the user can disable all the options in that menu at once
instead of having to disable each option separately.
Signed-off-by: Jan Engelhardt <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
With the cfq_queue hash removal, we inadvertently got rid of the
async queue sharing. This was not intentional, in fact CFQ purposely
shares the async queue per priority level to get good merging for
async writes.
So put some logic in cfq_get_queue() to track the shared queues.
Signed-off-by: Jens Axboe <[email protected]>
On Tue, 2007-07-10 at 10:06 +0100, Christoph Hellwig wrote:
> > -#define GFS2_LARGE_FH_SIZE 10
> > -
> > -struct gfs2_fh_obj {
> > - struct gfs2_inum_host this;
> > - u32 imode;
> > -};
> > +#define GFS2_LARGE_FH_SIZE 8
>
> Because gfs2_decode_fh only accepts file handles with GFS2_LARGE_FH_SIZE
> or GFS2_LARGE_FH_SIZE you don't accept filehandles sent out by and older
> gfs version anymore. Stale filehandles because of a new kernel version
> are a big no-no, so please add back code to handle the old filehandles
> on the decode side.
>
This should fix that problem I think since its only relating to end of
the fh we can just ignore that field in order to accept the older
format.
Signed-off-by: Steven Whitehouse <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Wendy Cheng <[email protected]>
This is W1 slave for ds2760 chip, found inside almost every HP iPaq and
HTC PDAs/phones.
Signed-off-by: Anton Vorontsov <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>
Signed-off-by: David Woodhouse <[email protected]>
This is driver for batteries with ds2760 chip inside, found inside
almost every HP iPaq and HTC PDAs/phones.
Signed-off-by: Anton Vorontsov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: David Woodhouse <[email protected]>
Common power driver for PDAs and phones with one or two external
power supplies (AC/USB) connected to main and backup batteries,
and optional builtin charger.
It's used to stop logic duplication through different embedded
devices. So, power supply *logic* is here. pda_power register
power supplies, and will take care about notifying batteries
about power changes through external power interface.
Currently, power consumption legal limits (including USB power
consumption) should be handled by platform code, inside set_charge
function.
Signed-off-by: Anton Vorontsov <[email protected]>
Signed-off-by: Roman Moravcik <[email protected]>
Signed-off-by: David Woodhouse <[email protected]>
This class is result of "external power" and "battery" classes merge,
as suggested by David Woodhouse. He also implemented uevent support.
Here how userspace seeing it now:
# ls /sys/class/power\ supply/
ac main-battery usb
# cat /sys/class/power\ supply/ac/type
AC
# cat /sys/class/power\ supply/usb/type
USB
# cat /sys/class/power\ supply/main-battery/type
Battery
# cat /sys/class/power\ supply/ac/online
1
# cat /sys/class/power\ supply/usb/online
0
# cat /sys/class/power\ supply/main-battery/status
Charging
# cat /sys/class/leds/h5400\:red-left/trigger
none h5400-radio timer hwtimer ac-online usb-online
main-battery-charging-or-full [main-battery-charging]
main-battery-full
Signed-off-by: Anton Vorontsov <[email protected]>
Signed-off-by: David Woodhouse <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Use __init and __exit for vmlogrdr. Both functions are only referenced
by the module_init exit macros, so this change should be fine.
Acked-by: Stefan Weinhuber <[email protected]>
Signed-off-by: Christian Borntraeger <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
sched-cfs-v2.6.22-git-v18.patch introduces CPU_IDLE in sched.h.
This conflict with the already existing define in
include/asm-s390/processor.h
Just rename the s390 defines, since they will go away as soon as
we support CONFIG_NO_HZ instead of our own CONFIG_NO_IDLE_HZ.
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Under very high load zcrypt requests may timeout while waiting on the
request queue. Modify zcrypt that timeouts are based on crypto adapter
responses. A timeout occurs only if a crypto adapter does not respond
within a given time frame to sumitted requests.
Signed-off-by: Ralph Wuerthner <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
After the in-kernel system call has been remove the system call path
can be optimized. The problem state bit of the old psw is always set
between system_call and sysc_do_svc. SAVE_ALL_SVC uses this information
to avoid two instructions.
Signed-off-by: Martin Schwidefsky <[email protected]>
drivers/s390/block/dasd_proc.c:33:
warning: 'dasd_get_user_string' defined but not used
drivers/s390/block/dasd_proc.c:172:
warning: 'dasd_statistics_array' defined but not used
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
If a virtual address is passed to the diag210 function under 31 bit, we get a
programming exception, since diag 210 only works with physical addresses. To
fix this, the content of the diag210 data structure is copied to a local
structure and the physical address of that structure is passed to diagnose 210.
Signed-off-by: Michael Holzheu <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
The bogomips calculation triggered via reading from /proc/cpuinfo
can return incorrect values if the qrnnd assembly is called with a
pointer in %r2 with any of the upper 32 bits set.
Fix this by using 64 bit division / remainder operation provided by
gcc instead of calling the assembly.
Signed-off-by: Martin Schwidefsky <[email protected]>
Merge smp_count_cpus() and smp_get_save_areas() so we save a loop over
all potentially present cpus.
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
CDL formated DASDs are now detected correctly even if no VOL1 label is
on the disk. This prevents possible loss of data.
Signed-off-by: Stefan Haberland <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Check if a command is available before executing. Saves some
superfluous service calls that won't succeed anyway.
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Introduce some new interfaces so that random subsystems don't have to
mess around with sclp internal structures.
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
No need to use the "&" prefix and, since you're calling nonseekable_open(),
there is no need to use no_llseek().
Signed-off-by: Robert P. J. Day <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
As per Andrew Mortons request, here's a set of documentation for
the generic pipe_buf_operations hooks, the pipe, and pipe_buffer
structures.
Signed-off-by: Jens Axboe <[email protected]>
