OSDN Git Service
Fabian Frederick [Tue, 17 Mar 2015 18:40:26 +0000 (19:40 +0100)]
ehea: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:40:25 +0000 (19:40 +0100)]
IBM-EMAC: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:40:24 +0000 (19:40 +0100)]
can: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:40:23 +0000 (19:40 +0100)]
net: phy: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:40:22 +0000 (19:40 +0100)]
orinoco: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:40 +0000 (19:37 +0100)]
net: xilinx: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:39 +0000 (19:37 +0100)]
net: greth: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:38 +0000 (19:37 +0100)]
netdev: octeon_mgmt: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:37 +0000 (19:37 +0100)]
net: ethernet: apple: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:36 +0000 (19:37 +0100)]
drivers: net: xgene: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:35 +0000 (19:37 +0100)]
net: ethoc: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:34 +0000 (19:37 +0100)]
net/fsl: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:33 +0000 (19:37 +0100)]
Altera TSE: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Tue, 17 Mar 2015 18:37:32 +0000 (19:37 +0100)]
net: netcp: constify of_device_id array
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Mon, 16 Mar 2015 09:42:26 +0000 (10:42 +0100)]
rhashtable: Avoid calculating hash again to unlock
Caching the lock pointer avoids having to hash on the object
again to unlock the bucket locks.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 16 Mar 2015 14:14:34 +0000 (07:14 -0700)]
tcp_metrics: fix wrong lockdep annotations
Changes in tcp_metric hash table are protected by tcp_metrics_lock
only, not by genl_mutex
While we are at it use deref_locked() instead of rcu_dereference()
in tcp_new() to avoid unnecessary barrier, as we hold tcp_metrics_lock
as well.
Reported-by: Andrew Vagin <avagin@parallels.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes:
098a697b497e ("tcp_metrics: Use a single hash table for all network namespaces.")
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Mon, 16 Mar 2015 11:33:32 +0000 (12:33 +0100)]
dsa: change "select" to "depends on" for NET_SWITCHDEV and for NET_DSA
This would fix randconfig compile error:
net/built-in.o: In function `netdev_switch_fib_ipv4_abort':
(.text+0xf7811): undefined reference to `fib_flush_external'
Also it fixes following warnings:
warning: (NET_DSA) selects NET_SWITCHDEV which has unmet direct dependencies (NET && INET)
warning: (NET_DSA_MV88E6060 && NET_DSA_MV88E6131 && NET_DSA_MV88E6123_61_65 && NET_DSA_MV88E6171 && NET_DSA_MV88E6352 && NET_DSA_BCM_SF2) selects NET_DSA which has unmet direct dependencies (NET && HAVE_NET_DSA && NET_SWITCHDEV)
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shaohui Xie [Mon, 16 Mar 2015 10:56:29 +0000 (18:56 +0800)]
net/fsl: modify xgmac_mdio for little endian SoCs
MDIO controller on little endian Socs, e.g. ls2085a is similar to the
controller on big endian Socs, but the MDIO access is little endian,
we use I/O accessor function to handle endianness, so the driver can
run on little endian Socs. A property "little-endian" is used
in DTS to indicate the MDIO is little endian, if driver probes the
property, driver will access MDIO in little endian, otherwise, driver
works in big endian by default.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shaohui Xie [Mon, 16 Mar 2015 10:55:50 +0000 (18:55 +0800)]
net/fsl: fix a bug in xgmac_mdio
There is a bug in xgmac_wait_until_done() which mdio_stat should be used
instead of mdio_data when checking if busy bit is cleared.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ying Xue [Mon, 16 Mar 2015 10:19:12 +0000 (18:19 +0800)]
net: kernel socket should be released in init_net namespace
Creating a kernel socket with sock_create_kern() happens in "init_net"
namespace, however, releasing it with sk_release_kernel() occurs in
the current namespace which may be different with "init_net" namespace.
Therefore, we should guarantee that the namespace in which a kernel
socket is created is same as the socket is created.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Mon, 16 Mar 2015 09:42:27 +0000 (10:42 +0100)]
rhashtable: Annotate RCU locking of walkers
Fixes the following sparse warnings:
lib/rhashtable.c:767:5: warning: context imbalance in 'rhashtable_walk_start' - wrong count at exit
lib/rhashtable.c:849:6: warning: context imbalance in 'rhashtable_walk_stop' - unexpected unlock
Fixes:
f2dba9c6ff0d ("rhashtable: Introduce rhashtable_walk_*")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Scott Feldman [Mon, 16 Mar 2015 06:04:46 +0000 (23:04 -0700)]
rocker: replace fixed stack allocation with dynamic allocation
In hast to fix some sparse warning, I hard-coded a fix-sized array on the stack
which is probably too big for kernel standards. Fix this by converting array
to dynamic allocation.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 16 Mar 2015 19:55:47 +0000 (15:55 -0400)]
Merge branch 'listener_refactor'
Eric Dumazet says:
====================
inet: tcp listener refactoring, part 10
We are getting close to the point where request sockets will be hashed
into generic hash table. Some followups are needed for netfilter and
will be handled in next patch series.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 16 Mar 2015 04:12:16 +0000 (21:12 -0700)]
inet: add proper refcounting to request sock
reqsk_put() is the generic function that should be used
to release a refcount (and automatically call reqsk_free())
reqsk_free() might be called if refcount is known to be 0
or undefined.
refcnt is set to one in inet_csk_reqsk_queue_add()
As request socks are not yet in global ehash table,
I added temporary debugging checks in reqsk_put() and reqsk_free()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 16 Mar 2015 04:12:15 +0000 (21:12 -0700)]
inet: factorize sock_edemux()/sock_gen_put() code
sock_edemux() is not used in fast path, and should
really call sock_gen_put() to save some code.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 16 Mar 2015 04:12:14 +0000 (21:12 -0700)]
inet_diag: allow sk_diag_fill() to handle request socks
inet_diag_fill_req() is renamed to inet_req_diag_fill()
and moved up, so that it can be called fom sk_diag_fill()
inet_diag_bc_sk() is ready to handle request socks.
inet_twsk_diag_dump() is no longer needed.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 16 Mar 2015 04:12:13 +0000 (21:12 -0700)]
inet: ip early demux should avoid request sockets
When a request socket is created, we do not cache ip route
dst entry, like for timewait sockets.
Let's use sk_fullsock() helper.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 16 Mar 2015 04:12:12 +0000 (21:12 -0700)]
net: add sk_fullsock() helper
We have many places where we want to check if a socket is
not a timewait or request socket. Use a helper to avoid
hard coding this.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 16 Mar 2015 04:14:47 +0000 (00:14 -0400)]
Merge branch 'swdev_ops'
Scott Feldman says:
====================
switchdev: add swdev ops
v3:
- Fix missing include for DSA build
v2:
- Per Simon's review, squash some of the dependent commits into one to
make series git bisect safe.
v1:
Per discussions at netconf, move switchdev ndo ops to a new swdev_ops to
keep ndo namespace clean and maintain switchdev-related ops into one place.
There are no functional changes here; just shuffling ops around for better
organization.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Scott Feldman [Mon, 16 Mar 2015 04:07:16 +0000 (21:07 -0700)]
netdev: remove ndo ops for switchdev
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Scott Feldman [Mon, 16 Mar 2015 04:07:15 +0000 (21:07 -0700)]
switchdev: use new swdev ops
Move swdev wrappers over to new swdev ops (from previous ndo ops). No
functional changes to the implementation.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
rocker: move to new swdev ops
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
dsa: move to new swdev ops
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Scott Feldman [Mon, 16 Mar 2015 04:07:14 +0000 (21:07 -0700)]
switchdev: add swdev ops
As discussed at netconf, introduce swdev_ops as first step to move switchdev
ops from ndo to swdev. This will keep switchdev from cluttering up ndo ops
space.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 16 Mar 2015 02:22:17 +0000 (22:22 -0400)]
Merge branch 'rhashtable-fixes-next'
Herbert Xu says:
====================
rhashtable: Fix two bugs caused by multiple rehash preparation
While testing some new patches over the weekend I discovered a
couple of bugs in the series that had just been merged. These
two patches fix them:
1) A use-after-free in the walker that can cause crashes when
walking during a rehash.
2) When a second rehash starts during a single rhashtable_remove
call the remove may fail when it shouldn't.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sun, 15 Mar 2015 10:12:05 +0000 (21:12 +1100)]
rhashtable: Fix rhashtable_remove failures
The commit
9d901bc05153bbf33b5da2cd6266865e531f0545 ("rhashtable:
Free bucket tables asynchronously after rehash") causes gratuitous
failures in rhashtable_remove.
The reason is that it inadvertently introduced multiple rehashing
from the perspective of readers. IOW it is now possible to see
more than two tables during a single RCU critical section.
Fortunately the other reader rhashtable_lookup already deals with
this correctly thanks to
c4db8848af6af92f90462258603be844baeab44d
("rhashtable: rhashtable: Move future_tbl into struct bucket_table")
so only rhashtable_remove is broken by this change.
This patch fixes this by looping over every table from the first
one to the last or until we find the element that we were trying
to delete.
Incidentally the simple test for detecting rehashing to prevent
starting another shrinking no longer works. Since it isn't needed
anyway (the work queue and the mutex serves as a natural barrier
to unnecessary rehashes) I've simply killed the test.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sun, 15 Mar 2015 10:12:04 +0000 (21:12 +1100)]
rhashtable: Fix use-after-free in rhashtable_walk_stop
The commit
c4db8848af6af92f90462258603be844baeab44d ("rhashtable:
Move future_tbl into struct bucket_table") introduced a use-after-
free bug in rhashtable_walk_stop because it dereferences tbl after
droping the RCU read lock.
This patch fixes it by moving the RCU read unlock down to the bottom
of rhashtable_walk_stop. In fact this was how I had it originally
but it got dropped while rearranging patches because this one
depended on the async freeing of bucket_table.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Petri Gynther [Fri, 13 Mar 2015 21:45:00 +0000 (14:45 -0700)]
net: bcmgenet: add support for Hardware Filter Block
Add support for Hardware Filter Block (HFB) so that incoming Rx traffic
can be matched and directed to desired Rx queues.
Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 16 Mar 2015 02:02:35 +0000 (22:02 -0400)]
Merge branch 'ebpf_skb_fields'
Alexei Starovoitov says:
====================
bpf: allow eBPF access skb fields
V1->V2:
- refactored field access converter into common helper convert_skb_access()
used in both classic and extended BPF
- added missing build_bug_on for field 'len'
- added comment to uapi/linux/bpf.h as suggested by Daniel
- dropped exposing 'ifindex' field for now
classic BPF has a way to access skb fields, whereas extended BPF didn't.
This patch introduces this ability.
Classic BPF can access fields via negative SKF_AD_OFF offset.
Positive bpf_ld_abs N is treated as load from packet, whereas
bpf_ld_abs -0x1000 + N is treated as skb fields access.
Many offsets were hard coded over years: SKF_AD_PROTOCOL, SKF_AD_PKTTYPE, etc.
The problem with this approach was that for every new field classic bpf
assembler had to be tweaked.
I've considered doing the same for extended, but for every new field LLVM
compiler would have to be modifed. Since it would need to add a new intrinsic.
It could be done with single intrinsic and magic offset or use of inline
assembler, but neither are clean from compiler backend point of view, since
they look like calls but shouldn't scratch caller-saved registers.
Another approach was to introduce a new helper functions like bpf_get_pkt_type()
for every field that we want to access, but that is equally ugly for kernel
and slow, since helpers are calls and they are slower then just loads.
In theory helper calls can be 'inlined' inside kernel into direct loads, but
since they were calls for user space, compiler would have to spill registers
around such calls anyway. Teaching compiler to treat such helpers differently
is even uglier.
They were few other ideas considered. At the end the best seems to be to
introduce a user accessible mirror of in-kernel sk_buff structure:
struct __sk_buff {
__u32 len;
__u32 pkt_type;
__u32 mark;
__u32 queue_mapping;
};
bpf programs will do:
int bpf_prog1(struct __sk_buff *skb)
{
__u32 var = skb->pkt_type;
which will be compiled to bpf assembler as:
dst_reg = *(u32 *)(src_reg + 4) // 4 == offsetof(struct __sk_buff, pkt_type)
bpf verifier will check validity of access and will convert it to:
dst_reg = *(u8 *)(src_reg + offsetof(struct sk_buff, __pkt_type_offset))
dst_reg &= 7
since 'pkt_type' is a bitfield.
No new instructions added. LLVM doesn't need to be modified.
JITs don't change and verifier already knows when it accesses 'ctx' pointer.
The only thing needed was to convert user visible offset within __sk_buff
to kernel internal offset within sk_buff.
For 'len' and other fields conversion is trivial.
Converting 'pkt_type' takes 2 or 3 instructions depending on endianness.
More fields can be exposed by adding to the end of the 'struct __sk_buff'.
Like vlan_tci and others can be added later.
When pkt_type field is moved around, goes into different structure, removed or
its size changes, the function convert_skb_access() would need to updated and
it will cover both classic and extended.
Patch 2 updates examples to demonstrates how fields are accessed and
adds new tests for verifier, since it needs to detect a corner case when
attacker is using single bpf instruction in two branches with different
register types.
The 4 fields of __sk_buff are already exposed to user space via classic bpf and
I believe they're useful in extended as well.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov [Fri, 13 Mar 2015 18:57:43 +0000 (11:57 -0700)]
samples: bpf: add skb->field examples and tests
- modify sockex1 example to count number of bytes in outgoing packets
- modify sockex2 example to count number of bytes and packets per flow
- add 4 stress tests that exercise 'skb->field' code path of verifier
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov [Fri, 13 Mar 2015 18:57:42 +0000 (11:57 -0700)]
bpf: allow extended BPF programs access skb fields
introduce user accessible mirror of in-kernel 'struct sk_buff':
struct __sk_buff {
__u32 len;
__u32 pkt_type;
__u32 mark;
__u32 queue_mapping;
};
bpf programs can do:
int bpf_prog(struct __sk_buff *skb)
{
__u32 var = skb->pkt_type;
which will be compiled to bpf assembler as:
dst_reg = *(u32 *)(src_reg + 4) // 4 == offsetof(struct __sk_buff, pkt_type)
bpf verifier will check validity of access and will convert it to:
dst_reg = *(u8 *)(src_reg + offsetof(struct sk_buff, __pkt_type_offset))
dst_reg &= 7
since skb->pkt_type is a bitfield.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 16 Mar 2015 01:57:30 +0000 (21:57 -0400)]
Merge branch 'ebpf_helpers'
Daniel Borkmann says:
====================
eBPF updates
Two small eBPF helper additions to better match up with ancillary
classic BPF functionality.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Sat, 14 Mar 2015 01:27:17 +0000 (02:27 +0100)]
ebpf: add helper for obtaining current processor id
This patch adds the possibility to obtain raw_smp_processor_id() in
eBPF. Currently, this is only possible in classic BPF where commit
da2033c28226 ("filter: add SKF_AD_RXHASH and SKF_AD_CPU") has added
facilities for this.
Perhaps most importantly, this would also allow us to track per CPU
statistics with eBPF maps, or to implement a poor-man's per CPU data
structure through eBPF maps.
Example function proto-type looks like:
u32 (*smp_processor_id)(void) = (void *)BPF_FUNC_get_smp_processor_id;
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Sat, 14 Mar 2015 01:27:16 +0000 (02:27 +0100)]
ebpf: add prandom helper for packet sampling
This work is similar to commit
4cd3675ebf74 ("filter: added BPF
random opcode") and adds a possibility for packet sampling in eBPF.
Currently, this is only possible in classic BPF and useful to
combine sampling with f.e. packet sockets, possible also with tc.
Example function proto-type looks like:
u32 (*prandom_u32)(void) = (void *)BPF_FUNC_get_prandom_u32;
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 15 Mar 2015 23:56:52 +0000 (19:56 -0400)]
Merge branch 'gianfar-next'
Claudiu Manoil says:
====================
gianfar: ARM port driver updates (2/2)
The 2nd round of driver updates to make gianfar portable on ARM,
for the ARM based SoC that integrates eTSEC - "ls1021a".
The patches address the bulk of remaining endianess issues -
handling DMA fields (BD and FCB), and device tree properties.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jingchang Lu [Fri, 13 Mar 2015 08:52:32 +0000 (10:52 +0200)]
gianfar: Consider dts property endianess on handling
Use of_property_read*() to get arch endian consistent
property values. Do some refactoring in the process.
Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Claudiu Manoil [Fri, 13 Mar 2015 08:36:29 +0000 (10:36 +0200)]
gianfar: Make FCB access endian safe
Use conversion macros to correctly access the BE
fields of the Rx and Tx Frame Control Block on LE CPUs.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Claudiu Manoil [Fri, 13 Mar 2015 08:36:28 +0000 (10:36 +0200)]
gianfar: Make BDs access endian safe
Use conversion macros to correctly access the BE
fields of the Rx and Tx Buffer Descriptors on LE CPUs.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 15 Mar 2015 05:35:46 +0000 (01:35 -0400)]
Merge branch 'rhashtable-next'
Herbert Xu says:
====================
rhashtable: Fixes + cleanups + preparation for multiple rehash
Patch 1 fixes the walker so that it behaves properly even during
a resize.
Patch 2-3 are cleanups.
Patch 4-6 lays some ground work for the upcoming multiple rehashing.
This revision fixes the warning coming from the bucket_table->size
downsize and improves its changelog.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sat, 14 Mar 2015 02:57:25 +0000 (13:57 +1100)]
rhashtable: Move future_tbl into struct bucket_table
This patch moves future_tbl to open up the possibility of having
multiple rehashes on the same table.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sat, 14 Mar 2015 02:57:24 +0000 (13:57 +1100)]
rhashtable: Add rehash counter to bucket_table
This patch adds a rehash counter to bucket_table to indicate
the last bucket that has been rehashed. This serves two purposes:
1. Any bucket that has been rehashed can never gain a new object.
2. If the rehash counter reaches the size of the table, the table
will forever remain empty.
This patch also downsizes bucket_table->size to an unsigned int
since we do not support sizes greater than 32 bits yet.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sat, 14 Mar 2015 02:57:23 +0000 (13:57 +1100)]
rhashtable: Free bucket tables asynchronously after rehash
There is in fact no need to wait for an RCU grace period in the
rehash function, since all insertions are guaranteed to go into
the new table through spin locks.
This patch uses call_rcu to free the old/rehashed table at our
leisure.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sat, 14 Mar 2015 02:57:22 +0000 (13:57 +1100)]
rhashtable: Move seed init into bucket_table_alloc
It seems that I have already made every rehash redo the random
seed even though my commit message indicated otherwise :)
Since we have already taken that step, this patch goes one step
further and moves the seed initialisation into bucket_table_alloc.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sat, 14 Mar 2015 02:57:21 +0000 (13:57 +1100)]
rhashtable: Use SINGLE_DEPTH_NESTING
We only nest one level deep there is no need to roll our own
subclasses.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sat, 14 Mar 2015 02:57:20 +0000 (13:57 +1100)]
rhashtable: Fix walker behaviour during rehash
Previously whenever the walker encountered a resize it simply
snaps back to the beginning and starts again. However, this only
works if the rehash started and completed while the walker was
idle.
If the walker attempts to restart while the rehash is still ongoing,
we may miss objects that we shouldn't have.
This patch fixes this by making the walker walk the old table
followed by the new table just like all other readers. If a
rehash is detected we will still signal our caller of the fact
so they can prepare for duplicates but we will simply continue
the walk onto the new table after the old one is finished either
by us or by the rehasher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Sat, 14 Mar 2015 20:21:59 +0000 (13:21 -0700)]
net: dsa: do not use slave MII bus for fixed PHYs
Commit
cd28a1a9baee7 ("net: dsa: fully divert PHY reads/writes if
requested") introduced a check for particular PHYs that need to be
accessed using the slave MII bus created by DSA, but this check was too
inclusive. This would prevent fixed PHYs from being successfully
registered because those should not go through the slave MII bus created
by DSA.
Make sure we check that the PHY is not a fixed PHY to prevent that from
happening.
Fixes:
cd28a1a9baee7 ("net: dsa: fully divert PHY reads/writes if requested")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 14 Mar 2015 19:08:02 +0000 (15:08 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2015-03-13
This series contains updates to ixgbe and ixgbevf.
Don adds additional support for X550 MAC types, which require additional
steps around enabling and disabling Rx. Also cleans up variable type
inconsistency.
I provide a patch to allow relaxed ordering to be enabled on SPARC
architectures. Also cleans up ixgbevf whitespace and code comments to
align the driver with networking coding standard. Lastly cleaned up
uses of memcpy() where ether_addr_copy() could have been used.
Alex removes some dead code in the ixgbe cleanup patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 14 Mar 2015 19:05:15 +0000 (15:05 -0400)]
Merge branch 'listener_refactor_part_9'
Eric Dumazet says:
====================
inet: tcp listener refactoring, part 9
This preliminary work pushes socket convergence a bit more:
1) request sock ir_iif is universally set
2) inet_diag can use common helpers to reduce LOC
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 13 Mar 2015 22:51:12 +0000 (15:51 -0700)]
inet_diag: factorize code in new inet_diag_msg_common_fill() helper
Now the three type of sockets share a common base, we can factorize
code in inet_diag_msg_common_fill().
inet_diag_entry no longer requires saddr_storage & daddr_storage
and the extra copies.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 13 Mar 2015 22:51:11 +0000 (15:51 -0700)]
inet_diag: adjust inet_sk_diag_fill() bug condition
inet_sk_diag_fill() only copes with non timewait and non request socks
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 13 Mar 2015 22:51:10 +0000 (15:51 -0700)]
inet: fill request sock ir_iif for IPv4
Once request socks will be in ehash table, they will need to have
a valid ir_iff field.
This is currently true only for IPv6. This patch extends support
for IPv4 as well.
This means inet_diag_fill_req() can now properly use ir_iif,
which is better for IPv6 link locals anyway, as request sockets
and established sockets will propagate consistent netlink idiag_if.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 14 Mar 2015 18:38:41 +0000 (14:38 -0400)]
Merge branch 'tipc-next'
Jon Maloy says:
====================
tipc: some optimizations and impovements
The commits in this series contain some relatively simple changes that
lead to better throughput across TIPC connections. We also make changes
to the implementation of link transmission queueing and priority
handling, in order to make the code more comprehensible and maintainable.
v2: Commit #2: Redesigned tipc_msg_validate() to use pskb_may_pull(),
as per feedback from David Miller.
Commit #3: Some cosmetic changes to tipc_msg_extract(). I tried to
replace the unconditional skb_linearize() with calls to
pskb_may_pull() at selected locations, but I gave up.
First, skb_trim() requires a fully linearized buffer.
Second, it doesn't make much sense; the whole buffer
will end up linearized, one way or another.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 13 Mar 2015 20:08:11 +0000 (16:08 -0400)]
tipc: clean up handling of message priorities
Messages transferred by TIPC are assigned an "importance priority", -an
integer value indicating how to treat the message when there is link or
destination socket congestion.
There is no separate header field for this value. Instead, the message
user values have been chosen in ascending order according to perceived
importance, so that the message user field can be used for this.
This is not a good solution. First, we have many more users than the
needed priority levels, so we end up with treating more priority
levels than necessary. Second, the user field cannot always
accurately reflect the priority of the message. E.g., a message
fragment packet should really have the priority of the enveloped
user data message, and not the priority of the MSG_FRAGMENTER user.
Until now, we have been working around this problem in different ways,
but it is now time to implement a consistent way of handling such
priorities, although still within the constraint that we cannot
allocate any more bits in the regular data message header for this.
In this commit, we define a new priority level, TIPC_SYSTEM_IMPORTANCE,
that will be the only one used apart from the four (lower) user data
levels. All non-data messages map down to this priority. Furthermore,
we take some free bits from the MSG_FRAGMENTER header and allocate
them to store the priority of the enveloped message. We then adjust
the functions msg_importance()/msg_set_importance() so that they
read/set the correct header fields depending on user type.
This small protocol change is fully compatible, because the code at
the receiving end of a link currently reads the importance level
only from user data messages, where there is no change.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 13 Mar 2015 20:08:10 +0000 (16:08 -0400)]
tipc: split link outqueue
struct tipc_link contains one single queue for outgoing packets,
where both transmitted and waiting packets are queued.
This infrastructure is hard to maintain, because we need
to keep a number of fields to keep track of which packets are
sent or unsent, and the number of packets in each category.
A lot of code becomes simpler if we split this queue into a transmission
queue, where sent/unacknowledged packets are kept, and a backlog queue,
where we keep the not yet sent packets.
In this commit we do this separation.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 13 Mar 2015 20:08:09 +0000 (16:08 -0400)]
tipc: eliminate unnecessary call to broadcast ack function
The unicast packet header contains a broadcast acknowledge sequence
number, that may need to be conveyed to the broadcast link for proper
treatment. Currently, the function tipc_rcv(), which is on the most
critical data path, calls the function tipc_bclink_acknowledge() to
have this done. This call is made for each received packet, and results
in the unconditional grabbing of the broadcast link spinlock.
This is unnecessary, since we can see directly from tipc_rcv() if
the acknowledged number differs from what has been previously acked
from the node in question. In the vast majority of cases the numbers
won't differ, and there is nothing to update.
We now make the call to tipc_bclink_acknowledge() conditional
to that the two ack values differ.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 13 Mar 2015 20:08:08 +0000 (16:08 -0400)]
tipc: extract bundled buffers by cloning instead of copying
When we currently extract a bundled buffer from a message bundle in
the function tipc_msg_extract(), we allocate a new buffer and explicitly
copy the linear data area.
This is unnecessary, since we can just clone the buffer and do
skb_pull() on the clone to move the data pointer to the correct
position.
This is what we do in this commit.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 13 Mar 2015 20:08:07 +0000 (16:08 -0400)]
tipc: eliminate unnecessary linearization of incoming buffers
Currently, TIPC linearizes all incoming buffers directly at reception
before passing them upwards in the stack. This is clearly a waste of
CPU resources, and must be avoided.
In this commit, we eliminate this unnecessary linearization. We still
ensure that at least the message header is linear, and that the buffer
is linearized where this is still needed, i.e. when unbundling and when
reversing messages.
In addition, we ensure that fragmented messages are validated after
reassembly before delivering them upwards in the stack.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 13 Mar 2015 20:08:06 +0000 (16:08 -0400)]
tipc: move message validation function to msg.c
The function link_buf_validate() is in reality re-entrant and context
independent, and will in later commits be called from several locations.
Therefore, we move it to msg.c, make it outline and rename the it to
tipc_msg_validate().
We also redesign the function to make proper use of pskb_may_pull()
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 13 Mar 2015 20:08:05 +0000 (16:08 -0400)]
tipc: add framework for node capabilities exchange
The TIPC protocol spec has defined a 13 bit capability bitmap in
the neighbor discovery header, as a means to maintain compatibility
between different code and protocol generations. Until now this field
has been unused.
We now introduce the basic framework for exchanging capabilities
between nodes at first contact. After exchange, a peer node's
capabilities are stored as a 16 bit bitmap in struct tipc_node.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 14 Mar 2015 18:29:45 +0000 (14:29 -0400)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
Here's another set of Bluetooth & ieee802154 patches intended for 4.1:
- Added support for QCA ROME chipset family in the btusb driver
- at86rf230 driver fixes & cleanups
- ieee802154 cleanups
- Refactoring of Bluetooth mgmt API to allow new users
- New setting for static Bluetooth address exposed to user space
- Refactoring of hci_dev flags to remove limit of 32
- Remove unnecessary fast-connectable setting usage restrictions
- Fix behavior to be consistent when trying to pair already paired device
- Service discovery corner-case fixes
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Wed, 11 Mar 2015 16:56:35 +0000 (17:56 +0100)]
ieee802154: don't export static symbol
The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
type T;
identifier f;
@@
static T f (...) { ... }
@@
identifier r.f;
declarer name EXPORT_SYMBOL;
@@
-EXPORT_SYMBOL(f);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Mon, 9 Mar 2015 12:56:12 +0000 (13:56 +0100)]
at86rf230: fix volatile regmap registers
These registers are also changed by transceiver and should be volatile
for right accessing via regmap debugfs.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Mon, 9 Mar 2015 12:56:11 +0000 (13:56 +0100)]
at86rf230: add support for calibration timeout
This patch adds a handling for calibration if we are 5 minutes in PLL
state. I first tried to implement the calibration functionality in
TX_ON state via register values CF_START and DCU_START, but this occurs
a one second delay at each calibration time.
An another solution to start a calibration is to switch from TRX_OFF
state into TX_ON, then a calibration is done automatically by
transceiver. This method will be used in this patch, after each transmit
of a frame we check with jiffies if the PLL is set 5 minutes without
doing a TRX_OFF->(TX_ON || RX_AACK_ON) or channel switch. The worst case
would be a transceiver in receiving mode only, but this is under normal
operation very unlikely.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Cc: Werner Almesberger <werner@almesberger.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Mon, 9 Mar 2015 12:56:10 +0000 (13:56 +0100)]
at86rf230: replace state change sleeps with hrtimer
This patch replace the state change timing relevant sleeps with
hrtimers. Currently the sleeps are done in the complete handler of
spi_async. The relation of doing the state change timing sleep with a
timer will get the sleep functionality out of spi_async complete handler
context.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Sat, 7 Mar 2015 21:07:07 +0000 (22:07 +0100)]
at86rf230: init xtal_trim with zero
This patch initialize xtal_trim value to zero. The xtal_trim property is
an optional device tree value. Currently if no xtal_trim property is
given the xtal_trim value can be contain random data, because it's a
stack variable. This patch init the xtal_trim value to zero which is
also the default value after reset for at86rf230 transceivers.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Wed, 4 Mar 2015 20:19:59 +0000 (21:19 +0100)]
mac802154: correct max sifs size handling
This patch fix the max sifs size correction when the
IEEE802154_HW_TX_OMIT_CKSUM flag is set. With this flag the sk_buff
doesn't contain the CRC, because the transceiver will add the CRC
while transmit.
Also add some defines for the max sifs frame size value and frame check
sequence according to 802.15.4 standard.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Mon, 2 Mar 2015 14:10:05 +0000 (15:10 +0100)]
ieee802154: remove deprecated sysfs entries
It's only necessary to offer the name and index, others value are
available over netlink.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Mon, 2 Mar 2015 14:10:04 +0000 (15:10 +0100)]
ieee802154: change wpan-phy name to phy
Currently the wpan_phy under /sys/class/ieee802154/ is named as
"wpan-phy#", this patch will change the name to phy. This will
introduce the same naming convention like wireless.
Note: wpan-tools users will not type "wpan-phy#" anymore, just a simple
"phy#" is enough.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Alexander Aring [Mon, 2 Mar 2015 14:10:03 +0000 (15:10 +0100)]
ieee802154: 6lowpan: fix ARPHRD to ARPHRD_6LOWPAN
Currently there exists two interface types with ARPHRD_IEEE802154. These
are the 802.15.4 interfaces and 802.15.4 6LoWPAN interfaces. This is
more a bug because some userspace applications checks on this value like
wireshark. This occurs that wireshark will always try to parse a lowpan
interface as 802.15.4 frames. With ARPHRD_6LOWPAN wireshark will parse
it as IPv6 frames which is correct.
Much applications checks on this value to readout the EUI64 mac address
which should be the same for ARPHRD_6LOWPAN. BTLE 6LoWPAN and ieee802154
6LoWPAN will share now the same ARPHRD.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Jeff Kirsher [Sat, 14 Feb 2015 04:53:03 +0000 (04:53 +0000)]
ixgbevf: Use ether_addr_copy() instead of memcpy()
Use the macro to copy the Ethernet address instead of memcpy().
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Jeff Kirsher [Tue, 10 Feb 2015 11:42:33 +0000 (11:42 +0000)]
ixgbevf: Fix code comments and whitespace
Fix the code comments to align with drivers/net/ code commenting style,
as well as whitespace issues. The whitespace issues resolve checkpatch
errors, like lines exceeding 80 chars (except for strings) and the use
of tabs where possible.
CC: <kernel-team@fb.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Alexander Duyck [Wed, 25 Feb 2015 17:45:54 +0000 (17:45 +0000)]
ixgbe: Remove IXGBE_FLAG_IN_NETPOLL since it doesn't do anything
This patch removes some dead code from the cleanup path for ixgbe.
Setting and clearing the flag doesn't do anything since all we are
doing is setting the flag, scheduling NAPI, clearing the flag and
then letting netpoll do the polling cleanup. As such it doesn't
make much sense to have it there.
This patch also removes one minor white-space error.
CC: <kernel-team@fb.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jeff Kirsher [Fri, 13 Mar 2015 21:04:35 +0000 (14:04 -0700)]
ixgbe: enable relaxed ordering for SPARC
This patch makes sure that relaxed ordering is not disabled when
on SPARC, where it helps with performance.
CC: <kernel-team@fb.com>
CC: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Reported-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Don Skidmore [Fri, 13 Mar 2015 21:03:25 +0000 (14:03 -0700)]
ixgbe: cleanup make ixgbe_set_ethertype_anti_spoofing_X550 static
Correcting a mistake when I initial created this function. I should
have made this static since it is only referenced where the function
pointer is assigned.
CC: <kernel-team@fb.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Don Skidmore [Fri, 13 Mar 2015 21:01:34 +0000 (14:01 -0700)]
ixgbe: Clean up type inconsistency
Missed this when I created commit
6a14ee0cfb197 ("ixgbe: Add X550 support
function pointers"). Use a the __be* type to be consistent with how the
value is assigned.
CC: <kernel-team@fb.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Don Skidmore [Fri, 13 Mar 2015 20:54:30 +0000 (13:54 -0700)]
ixgbe: add new wrapper for X550 support
For the X550 mac type we have to do additional steps around
enabling/disabling Rx. This patch will add a layer of indirection
around these support functions to enable this.
CC: <kernel-team@fb.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
David S. Miller [Fri, 13 Mar 2015 19:52:38 +0000 (15:52 -0400)]
Merge branch 'bcmgenet_xmit_more'
Florian Fainelli says:
====================
net: bcmgenet: xmit_more support
This patch series adds xmit_more support to the GENET driver by allowing
the deferal of the producer index write to the TDMA engine.
Changes in v2:
- move the netif_tx_stop_queue check *before* updating the producer index
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 13 Mar 2015 19:11:07 +0000 (12:11 -0700)]
net: bcmgenet: add support for xmit_more
Delay the update of the TDMA producer index unless this is the last SKB
in a batch, or the queue is already stopped. Move the check for whether
the queue should be stopped before the xmit_more check to avoid locking
the transmit queue in case there was a SKB submitted which has xmit_more
set.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 13 Mar 2015 19:11:06 +0000 (12:11 -0700)]
net: bcmgenet: update ring producer index and buffer count in xmit
There is no need to have both bcmgenet_xmit_single() and
bcmgenet_xmit_frag() perform a free_bds decrement and a prod_index
increment by one. In case one of these functions fails to map a SKB or
fragment for transmit, we will return and exit bcmgenet_xmit() with an
error.
We can therefore safely use our local copy of nr_frags to know by how
much we should decrement the number of free buffers available, and by
how much the producer count must be incremented and do this in the tail
of bcmgenet_xmit().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Petri Gynther [Thu, 12 Mar 2015 22:48:00 +0000 (15:48 -0700)]
net: bcmgenet: rewrite bcmgenet_rx_refill()
Currently, bcmgenet_desc_rx() calls bcmgenet_rx_refill() at the end of
Rx packet processing loop, after the current Rx packet has already been
passed to napi_gro_receive(). However, bcmgenet_rx_refill() might fail
to allocate a new Rx skb, thus leaving a hole on the Rx queue where no
valid Rx buffer exists.
To eliminate this situation:
1. Rewrite bcmgenet_rx_refill() to retain the current Rx skb on the Rx
queue if a new replacement Rx skb can't be allocated and DMA-mapped.
In this case, the data on the current Rx skb is effectively dropped.
2. Modify bcmgenet_desc_rx() to call bcmgenet_rx_refill() at the top of
Rx packet processing loop, so that the new replacement Rx skb is
already in place before the current Rx skb is processed.
Signed-off-by: Petri Gynther <pgynther@google.com>
Tested-by: Jaedon Shin <jaedon.shin@gmail.com>--
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marcel Holtmann [Fri, 13 Mar 2015 17:20:35 +0000 (10:20 -0700)]
Bluetooth: Merge hdev->dbg_flags fields into hdev->dev_flags
With the extension of hdev->dev_flags utilizing a bitmap now, the space
is no longer restricted. Merge the hdev->dbg_flags into hdev->dev_flags
to save space on 64-bit architectures. On 32-bit architectures no size
reduction happens.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 16:04:17 +0000 (09:04 -0700)]
Bluetooth: Use DECLARE_BITMAP for hdev->dev_flags field
The hdev->dev_flags field has outgrown itself on 32-bit systems. So
instead of hacking around it, switch to using DECLARE_BITMAP.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Daniel Drake [Tue, 24 Feb 2015 00:16:47 +0000 (18:16 -0600)]
Bluetooth: btusb: Add helper for READ_LOCAL_VERSION command
Multiple codepaths duplicate some simple code to read and
sanity-check local version information. Before I add a couple more
such codepaths, add a helper to reduce duplication.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 09:11:06 +0000 (02:11 -0700)]
Bluetooth: Introduce hci_dev_test_and_set_flag helper macro
Instead of manually coding test_and_set_bit on hdev->dev_flags all the
time, use hci_dev_test_and_set_flag helper macro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 09:11:05 +0000 (02:11 -0700)]
Bluetooth: Introduce hci_dev_test_and_clear_flag helper macro
Instead of manually coding test_and_clear_bit on hdev->dev_flags all the
time, use hci_dev_test_and_clear_flag helper macro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 09:11:04 +0000 (02:11 -0700)]
Bluetooth: Introduce hci_dev_test_and_change_flag helper macro
Instead of manually coding test_and_change_bit on hdev->dev_flags all the
time, use hci_dev_test_and_change_flag helper macro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 09:11:03 +0000 (02:11 -0700)]
Bluetooth: Introduce hci_dev_change_flag helper macro
Instead of manually coding change_bit on hdev->dev_flags all the time,
use hci_dev_change_flag helper macro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 09:11:02 +0000 (02:11 -0700)]
Bluetooth: Introduce hci_dev_clear_flag helper macro
Instead of manually coding clear_bit on hdev->dev_flags all the time,
use hci_dev_clear_flag helper macro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 09:11:01 +0000 (02:11 -0700)]
Bluetooth: Introduce hci_dev_set_flag helper macro
Instead of manually coding set_bit on hdev->dev_flags all the time,
use hci_dev_set_flag helper macro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 09:11:00 +0000 (02:11 -0700)]
Bluetooth: Introduce hci_dev_test_flag helper macro
Instead of manually coding test_bit on hdev->dev_flags all the time,
use hci_dev_test_flag helper macro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Fri, 13 Mar 2015 05:30:58 +0000 (22:30 -0700)]
Bluetooth: Add support connectable advertising setting
The patch adds a second advertising setting that allows switching of the
controller into connectable mode independent of the global connectable
setting.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
David S. Miller [Fri, 13 Mar 2015 05:57:16 +0000 (01:57 -0400)]
Merge branch 'tcp_metrics_netns_debloat'
Eric W. Biederman says:
====================
tcp_metrics: Network namespace bloat reduction v3
This is a small pile of patches that convert tcp_metrics from using a
hash table per network namespace to using a single hash table for all
network namespaces.
This is broken up into several patches so that each small step along
the way could be carefully scrutinized as I wrote it, and equally so
that each small step can be reviewed.
There are several cleanups included in this series. The addition of
panic calls during boot where we can not handle failure, and not trying
simplifies the code. The removal of the return code from
tcp_metrics_flush_all.
The motivation for this change is that the tcp_metrics hash table at
128KiB is one of the largest components of a freshly allocated network
namespace.
I am resending the the previous version I sent has suffered bitrot, so I
have respun the patches so that they apply. I believe I have addressed
all of the review concerns except optimal behavior on little machines
with 32-byte cache lines, which is beyond me as even the current code
has bad behavior in that case.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>