03 Mar, 2011
1 commit
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The incorrect ops routine was being tested for in
DCB_ATTR_IEEE_PFC attributes. This patch corrects
it.Currently, every driver implementing ieee_setets also
implements ieee_setpfc so this bug is not actualized
yet.Signed-off-by: John Fastabend
Signed-off-by: David S. Miller
14 Feb, 2011
2 commits
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nla_nest_start() may return NULL. If it does then we'll blow up in
nla_nest_end() when we dereference the pointer.Signed-off-by: Jesper Juhl
Signed-off-by: David S. Miller -
The app_data priority may not be the same for all net devices.
In order for stacks with application notifiers to identify the
specific net device dcb_app_type should be passed in the ptr.This allows handlers to use dev_get_by_name() to pin priority
to net devices.Signed-off-by: John Fastabend
Signed-off-by: David S. Miller
25 Jan, 2011
1 commit
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The IEEE get/set app handlers use generic routines and do not
require the net_device to implement the dcbnl_ops routines. This
patch makes it symmetric so user space and drivers do not have
to handle the CEE version and IEEE DCBx versions differently.Signed-off-by: John Fastabend
Signed-off-by: David S. Miller
07 Jan, 2011
2 commits
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The original code has a use after free bug because it's not using the
_safe() version of the list_for_each_entry() macro.Signed-off-by: Dan Carpenter
Signed-off-by: David S. Miller -
There is a "goto nla_put_failure" hidden inside the NLA_PUT() macro, but
we're holding the dcb_lock so we need to unlock first.Signed-off-by: Dan Carpenter
Signed-off-by: David S. Miller
04 Jan, 2011
1 commit
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More accurate return values for the following (new) dcbnl routines:
dcbnl_getdcbx()
dcbnl_setdcbx()
dcbnl_getfeatcfg()
dcbnl_setfeatcfg()Signed-off-by: Shmulik Ravid
Signed-off-by: David S. Miller
01 Jan, 2011
6 commits
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A couple of small cleanups for patches:
[net-next-2.6 PATCH 1/3] dcbnl: add support for ieee8021Qaz attributes
[net-next-2.6 PATCH 2/3] dcbnl: add appliction tlv handlers
[net-next-2.6 PATCH 3/3] net_dcb: add application notifiersSigned-off-by: Shmulik Ravid
Signed-off-by: David S. Miller -
Adding a pair of set-get routines to dcbnl for setting the negotiation
flags of the various DCB features. Conforms to the CEE flavor of DCBX
The user sets these flags (enable, advertise, willing) for each feature
to be used by the DCBX engine. The 'get' routine returns which of the
features is enabled after the negotiation.This patch is dependent on the following patches:
[net-next-2.6 PATCH 1/3] dcbnl: add support for ieee8021Qaz attributes
[net-next-2.6 PATCH 2/3] dcbnl: add appliction tlv handlers
[net-next-2.6 PATCH 3/3] net_dcb: add application notifiersSigned-off-by: Shmulik Ravid
Signed-off-by: David S. Miller -
Adding an optional DCBX capability and a pair for get-set routines for
setting the device DCBX mode. The DCBX capability is a bit field of
supported attributes. The user is expected to set the DCBX mode with a
subset of the advertised attributes.This patch is dependent on the following patches:
[net-next-2.6 PATCH 1/3] dcbnl: add support for ieee8021Qaz attributes
[net-next-2.6 PATCH 2/3] dcbnl: add appliction tlv handlers
[net-next-2.6 PATCH 3/3] net_dcb: add application notifiersSigned-off-by: Shmulik Ravid
Acked-by: John Fastabend
Signed-off-by: David S. Miller -
DCBx applications priorities can be changed dynamically. If
application stacks are expected to keep the skb priority
consistent with the dcbx priority the stack will need to
be notified when these changes occur.This patch adds application notifiers for the stack to register
with.Signed-off-by: John Fastabend
Signed-off-by: David S. Miller -
This patch adds application tlv handlers. Networking stacks
may use the application priority to set the skb priority of
their stack using the negoatiated dcbx priority.This patch provides the dcb_{get|set}app() routines for the
stack to query these parameters. Notice lower layer drivers
can use the dcbnl_ops routines if additional handling is
needed. Perhaps in the firmware case for exampleSigned-off-by: John Fastabend
Signed-off-by: Shmulik Ravid
Signed-off-by: David S. Miller -
The IEEE8021Qaz is the IEEE standard version of CEE. The
standard has had enough significant changes from the CEE
version that many of the CEE attributes have no meaning
in the new spec or do not easily map to IEEE standards.Rather then attempt to create a complicated mapping
between CEE and IEEE standards this patch adds a nested
IEEE attribute to the list of DCB attributes. The policy
is,[DCB_ATTR_IFNAME]
[DCB_ATTR_STATE]
...
[DCB_ATTR_IEEE]
[DCB_ATTR_IEEE_ETS]
[DCB_ATTR_IEEE_PFC]
[DCB_ATTR_IEEE_APP_TABLE]
[DCB_ATTR_IEEE_APP]
...The following dcbnl_rtnl_ops routines were added to handle
the IEEE standard,int (*ieee_getets) (struct net_device *, struct ieee_ets *);
int (*ieee_setets) (struct net_device *, struct ieee_ets *);
int (*ieee_getpfc) (struct net_device *, struct ieee_pfc *);
int (*ieee_setpfc) (struct net_device *, struct ieee_pfc *);
int (*ieee_getapp) (struct net_device *, struct dcb_app *);
int (*ieee_setapp) (struct net_device *, struct dcb_app *);Signed-off-by: John Fastabend
Signed-off-by: David S. Miller
30 Mar, 2010
1 commit
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…it slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
19 Feb, 2010
1 commit
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Make remaining netlink policies as const.
Fixup coding style where needed.Signed-off-by: Alexey Dobriyan
Signed-off-by: David S. Miller
30 Nov, 2009
1 commit
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Not including net/atm/
Compiled tested x86 allyesconfig only
Added a > 80 column line or two, which I ignored.
Existing checkpatch plaints willfully, cheerfully ignored.Signed-off-by: Joe Perches
Signed-off-by: David S. Miller
26 Nov, 2009
1 commit
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Generated with the following semantic patch
@@
struct net *n1;
struct net *n2;
@@
- n1 == n2
+ net_eq(n1, n2)@@
struct net *n1;
struct net *n2;
@@
- n1 != n2
+ !net_eq(n1, n2)applied over {include,net,drivers/net}.
Signed-off-by: Octavian Purdila
Signed-off-by: David S. Miller
27 Sep, 2009
1 commit
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netlink_unicast() calls kfree_skb even in the error case.
dcbnl calls netlink_unicast() which when it fails free's the
skb and returns an error value. dcbnl is free'ing the skb
again when this error occurs. This patch removes the double
free.Signed-off-by: John Fastabend
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller
01 Sep, 2009
2 commits
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Implements the dcbnl netlink setapp/getapp pair. When a setapp/getapp
is received, dcbnl would just pass on to dcbnl_rtnl_op.setapp/getapp
that are supposed to be implemented by the low level drivers.Signed-off-by: Yi Zou
Acked-by: Peter P Waskiewicz Jr
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller -
Add defines for dcbnl netlink attributes to support netlink message passing of
setapp/getapp in dcbnl.Signed-off-by: Yi Zou
Acked-by: Peter P Waskiewicz Jr
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller
05 Jan, 2009
1 commit
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Use kfree_skb instead of kfree for struct sk_buff pointers.
Signed-off-by: Roel Kluin
Signed-off-by: David S. Miller
22 Dec, 2008
2 commits
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Adds the Backward Congestion Notification Address (BCNA) attribute to the
Backward Congestion Notification (BCN) interface for Data Center Bridging
(DCB), which was missing. Receive the BCNA attribute in the ixgbe driver.
The BCNA attribute is for a switch to inform the endstation about the physical
port identification in order to support BCN on aggregated links.Signed-off-by: Don Skidmore
Signed-off-by: Eric W Multanen
Signed-off-by: Jeff Kirsher -
Data Center Bridging (DCB) had no way to know if setstate had failed in the
driver. This patch enables dcb netlink code to handle the status for the DCB
setstate interface. Likewise it allows the driver to return a failed status
if MSI-X isn't enabled.Signed-off-by: Don Skidmore
Signed-off-by: Eric W Multanen
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller
15 Dec, 2008
1 commit
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dcbml_setnumtcs wasn't checking for the presence of the setnumtcs
function. Instead, it was checking for setstate which was a bug.Signed-off-by: Don Skidmore
Signed-off-by: Eric W Multanen
Signed-off-by: Peter P Waskiewicz Jr
Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller
25 Nov, 2008
1 commit
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Since the netlink option for DCB is necessary to actually be useful,
simplified the Kconfig option. In addition, added useful help text for the
Kconfig option.Signed-off-by: Jeff Kirsher
Signed-off-by: David S. Miller
21 Nov, 2008
5 commits
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Adds an interface to configure the Backward Congestion Notification
(BCN) feature. In a BCN capabale network, congestion notifications
from congested points out in the network can cause the end station
limit the rate of a given traffic flow.Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: Peter P Waskiewicz Jr
Signed-off-by: David S. Miller -
Adds a netlink interface for Data Center Bridging (DCB) to get and set
the enable state of the Priority Flow Control (PFC) feature.
Primarily, this is a way to turn off PFC in the driver while DCB
remains enabled.Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: Peter P Waskiewicz Jr
Signed-off-by: David S. Miller -
Adds interface for Data Center Bridging (DCB) to query (and set if
supported) the number of traffic classes currently supported by the
device for the two (DCB) features: priority groups (PG) and priority
flow control (PFC).Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: Peter P Waskiewicz Jr
Signed-off-by: David S. Miller -
Adds to the netlink interface for Data Center Bridging (DCB), allowing
the DCB capabilities supported by a device to be queried.Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: Peter P Waskiewicz Jr
Signed-off-by: David S. Miller -
This adds support for Data Center Bridging (DCB) features in the ixgbe
driver and adds an rtnetlink interface for configuring DCB to the
kernel. The DCB feature support included are Priority Grouping (PG) -
which allows bandwidth guarantees to be allocated to groups to traffic
based on the 802.1q priority, and Priority Based Flow Control (PFC) -
which introduces a new MAC control PAUSE frame which works at
granularity of the 802.1p priority instead of the link (IEEE 802.3x).Signed-off-by: Alexander Duyck
Signed-off-by: Jeff Kirsher
Signed-off-by: Peter P Waskiewicz Jr
Signed-off-by: David S. Miller
