Commit Graph

38 Commits

Author SHA1 Message Date
Jan-Bernd Themann
acbddb591b ehea: removing unused functionality
This patch includes:
- removal of unused fields in structs
- ethtool statistics cleanup
- removes unsed functionality from send path

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:02 -04:00
Jean Delvare
4eccccb362 strlcpy is smart enough
strlcpy already accounts for the trailing zero in its length
computation, so there is no need to substract one to the buffer size.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jan-Bernd Themann <themann@de.ibm.com>
Cc: Thomas Klein <osstklei@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:02 -04:00
Jan-Bernd Themann
e542aa6bd5 ehea: code cleanup
This patch includes:

- code cleanup related to resource management
- extended error data gathering for resource management
- removing trailing whitespaces

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:01 -04:00
Jan-Bernd Themann
1eef4e04c9 ehea: fix for dynamic lpar support
The patch fixes bugs related to the probe / remove adapter
functionality (handling of OFDT nodes)

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:01 -04:00
Jan-Bernd Themann
18604c5485 ehea: NAPI multi queue TX/RX path for SMP
This patch provides a functionality that allows parallel
RX processing on multiple RX queues by using dummy netdevices.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:00:56 -04:00
Jan-Bernd Themann
1acf2318dd ehea: dynamic add / remove port
This patch introduces functionality to dynamically add / remove
ehea ports via an userspace DLPAR tool. It creates a subnode for
each logical port in the sysfs.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:00:56 -04:00
Arnaldo Carvalho de Melo
27d7ff46a3 [SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}
To clearly state the intent of copying to linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
2007-04-25 22:28:29 -07:00
Arnaldo Carvalho de Melo
d626f62b11 [SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}
To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2007-04-25 22:28:23 -07:00
Arnaldo Carvalho de Melo
ab6a5bb6b2 [TCP]: Introduce tcp_hdrlen() and tcp_optlen()
The ip_hdrlen() buddy, created to reduce the number of skb->h.th-> uses and to
avoid the longer, open coded equivalent.

Ditched a no-op in bnx2 in the process.

I wonder if we should have a BUG_ON(skb->h.th->doff < 5) in tcp_optlen()...

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:24 -07:00
Arnaldo Carvalho de Melo
eddc9ec53b [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:10 -07:00
Arnaldo Carvalho de Melo
c9bdd4b525 [IP]: Introduce ip_hdrlen()
For the common sequence "skb->nh.iph->ihl * 4", removing a good number of open
coded skb->nh.iph uses, now to go after the rest...

Just out of curiosity, here are the idioms found to get the same result:

skb->nh.iph->ihl << 2
skb->nh.iph->ihl<<2
skb->nh.iph->ihl * 4
skb->nh.iph->ihl*4
(skb->nh.iph)->ihl * sizeof(u32)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:07 -07:00
Dan Aloni
5c15bdec5c [VLAN]: Avoid a 4-order allocation.
This patch splits the vlan_group struct into a multi-allocated struct. On
x86_64, the size of the original struct is a little more than 32KB, causing
a 4-order allocation, which is prune to problems caused by buddy-system
external fragmentation conditions.

I couldn't just use vmalloc() because vfree() cannot be called in the
softirq context of the RCU callback.

Signed-off-by: Dan Aloni <da-x@monatomic.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-02 20:44:51 -08:00
Jeff Garzik
f630fe2817 Merge branch 'master' into upstream 2007-02-17 15:11:43 -05:00
Thomas Gleixner
38515e908b [PATCH] Scheduled removal of SA_xxx interrupt flags fixups
The obsolete SA_xxx interrupt flags have been used despite the scheduled
removal.  Fixup the remaining users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: Dave Airlie <airlied@linux.ie>
Cc: James Simmons <jsimmons@infradead.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00
Jan-Bernd Themann
d2db9eea79 ehea: Fixed error recovery
Error recovery for QP errors: Reset QPs and dump error information

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09 16:09:46 -05:00
Thomas Klein
d4150a2731 ehea: Fixed missing tasklet_kill() call
NEQ-Tasklet wasn't killed when module is removed.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-30 09:36:02 -05:00
Thomas Klein
9c750b7d14 ehea: Fixed wrong jumbo frames status query
This patch fixes the wrong query and logging of the per interface jumbo frames
enabled/disabled status.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-30 09:36:02 -05:00
Thomas Klein
41b69c7051 ehea: Fixed possible nullpointer access
Fixed possible nullpointer access in event queue processing

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23 00:59:21 -05:00
Thomas Klein
bb3a6449c1 ehea: Added logging off associated errors
Added logging of error events associated with a specific queue pair

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23 00:59:21 -05:00
Thomas Klein
7674a588e9 ehea: Improved logging of permission issues
Disabled dump of hcall regs on some permission issues and
fixed appropriate misleading logmessages

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23 00:59:21 -05:00
Thomas Klein
4e996b32e0 ehea: New method to determine number of available ports
Count OFDT nodes to determine the number of available ports
instead of using the possibly outdated value from the hypervisor

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23 00:59:20 -05:00
Thomas Klein
e919b5938b ehea: Modified initial autoneg state determination
Logical partitions are not allowed to (try to) set the autonegotiation status.
This patch removes the respective function call from the port setup function.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23 00:59:20 -05:00
Thomas Klein
602e0d100d ehea: Fixing firmware queue config issue
Fix to use exactly one queue for incoming packets in all
firmware configurations

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23 00:59:20 -05:00
Thomas Klein
061bf3cdba ehea: Fixed wrong dereferencation
Not only check the pointer against 0 but also the dereferenced value

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23 00:59:20 -05:00
David Howells
9db7372445 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	drivers/ata/libata-scsi.c
	include/linux/libata.h

Futher merge of Linus's head and compilation fixups.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-05 17:01:28 +00:00
Al Viro
d7fe0f241d [PATCH] severing skbuff.h -> mm.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-12-04 02:00:34 -05:00
David Howells
c4028958b6 WorkStruct: make allyesconfig
Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
Thomas Klein
a1d261c561 [PATCH] ehea: 64K page support fix
This patch fixes 64k page support by using PAGE_MASK and appropriate pagesize defines in several places.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-06 02:55:07 -05:00
Thomas Klein
07fd06b3bc [PATCH] ehea: Removed redundant define
Removed define H_CB_ALIGNMENT which is already defined in include/asm-powerpc/hvcall.h

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-06 02:55:07 -05:00
Thomas Klein
1b5135d9b9 [PATCH] ehea: Nullpointer dereferencation fix
Fix: Must check for nullpointer before dereferencing it - not afterwards.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-06 02:55:07 -05:00
Jan-Bernd Themann
1e1675ccf7 [PATCH] ehea: kzalloc GFP_ATOMIC fix
This patch fixes kzalloc parameters (GFP_ATOMIC instead of GFP_KERNEL)

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-31 20:22:06 -05:00
Jan-Bernd Themann
bff0a55f34 [PATCH] ehea: fix port state notification, default queue sizes
This patch includes a bug fix for the port state notification
and fixes the default queue sizes.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-11 03:58:26 -04:00
Jan-Bernd Themann
08093c8fd6 [PATCH] ehea: firmware (hvcall) interface changes
This eHEA patch covers required changes related to Anton Blanchard's new hvcall interface.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-11 03:58:26 -04:00
David Howells
7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Jan-Bernd Themann
53ccce2395 [PATCH] ehea: bugfix for register access functions
Hi Jeff,

sorry to bother you again. We figured out that the readq function we
included in the eHEA patch we sent yesterday to access eHEA registers
is defined as little endian on POWER. This collides with our adapter.
We talked to some PPC people who told us there is a discussion going
on about new access functions. We were told to use __raw_readq /
__raw_writeq for now.

This patch fixes this bug found by our internal tests today.
Please apply this small patch on the latest patch we sent you yesterday.
If it is easier for you I can also give you the entire eHEA patch again.

sorry and thanks a lot,
Jan-Bernd

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>

 drivers/net/ehea/ehea.h    |    2 +-
 drivers/net/ehea/ehea_hw.h |   11 ++++++++---
 2 files changed, 9 insertions(+), 4 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-19 00:05:45 -04:00
Jeff Garzik
7282d491ec drivers/net: const-ify ethtool_ops declarations
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13 14:30:00 -04:00
Jeff Garzik
6aa20a2235 drivers/net: Trim trailing whitespace
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13 13:24:59 -04:00
Jan-Bernd Themann
7a29108322 [PATCH] ehea: IBM eHEA Ethernet Device Driver
Hi Jeff,

I fixed the __iomem issue and tested the driver with sparse. Looks good so far.
Thanks for your effort.

Jan-Bernd Themann

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>

 drivers/net/Kconfig             |    9
 drivers/net/Makefile            |    1
 drivers/net/ehea/Makefile       |    6
 drivers/net/ehea/ehea.h         |  447 ++++++
 drivers/net/ehea/ehea_ethtool.c |  294 ++++
 drivers/net/ehea/ehea_hcall.h   |   51
 drivers/net/ehea/ehea_hw.h      |  287 ++++
 drivers/net/ehea/ehea_main.c    | 2654 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/ehea/ehea_phyp.c    |  705 ++++++++++
 drivers/net/ehea/ehea_phyp.h    |  455 ++++++
 drivers/net/ehea/ehea_qmr.c     |  582 ++++++++
 drivers/net/ehea/ehea_qmr.h     |  358 +++++
 12 files changed, 5849 insertions(+)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13 13:23:52 -04:00