GitHub/LineageOS/G12/android_kernel_amlogic_linux-4.9.git
10 years agonet: phy: add Broadcom BCM7xxx internal PHY driver
Florian Fainelli [Fri, 14 Feb 2014 00:08:45 +0000 (16:08 -0800)]
net: phy: add Broadcom BCM7xxx internal PHY driver

This patch adds support for the Broadcom BCM7xxx Set Top Box SoCs
internal PHYs. This driver supports the following generation of SoCs:

- BCM7366, BCM7439, BCM7445 (28nm process)
- all 40nm and 65nm (older MIPS-based SoCs)

The PHYs on these SoCs require a bunch of workarounds to operate
correctly, both during configuration time and at suspend/resume time,
the driver handles that for us.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: broadcom: extract register definitions
Florian Fainelli [Fri, 14 Feb 2014 00:08:44 +0000 (16:08 -0800)]
net: phy: broadcom: extract register definitions

The Broadcom BCM54xx register definitions are shared between BCM54xx and
BCM7xx internal PHYs for which we are adding support. Extract these
register definitions and put them in include/linux/brcmphy.h for use by
the BCM7xxx internal PHY driver.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: update port type for MoCA PHYs
Florian Fainelli [Fri, 14 Feb 2014 00:08:43 +0000 (16:08 -0800)]
net: phy: update port type for MoCA PHYs

MoCA PHYs are using coaxial (BNC-like) connectors, update the
transceiver port type when replying to ethtool.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: add MoCA PHY type
Florian Fainelli [Fri, 14 Feb 2014 00:08:42 +0000 (16:08 -0800)]
net: phy: add MoCA PHY type

Some Ethernet MACs are connected to a MoCA PHY which will handle the
low-level job of sending Ethernet frames on the coaxial cable, these
Ethernet MACs need to know about it to be properly configured.
Add a new PHY mode "moca" and update the Device Tree parsing logic to
look for it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosch_netem: replace magic numbers with enumerate in GE model
Yang Yingliang [Fri, 14 Feb 2014 02:30:43 +0000 (10:30 +0800)]
sch_netem: replace magic numbers with enumerate in GE model

Replace some magic numbers which describe states of GE model
loss generator with enumerate.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosch_netem: change some func's param from "struct Qdisc *" to "struct netem_sched_data *"
Yang Yingliang [Fri, 14 Feb 2014 02:30:42 +0000 (10:30 +0800)]
sch_netem: change some func's param from "struct Qdisc *" to "struct netem_sched_data *"

In netem_change(), we have already get "struct netem_sched_data *q".
Replace params of get_correlation() and other similar functions with
"struct netem_sched_data *q".

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosch_netem: return errcode before setting params
Yang Yingliang [Fri, 14 Feb 2014 02:30:41 +0000 (10:30 +0800)]
sch_netem: return errcode before setting params

get_dist_table() and get_loss_clg() may be failed. These
two functions should be called after setting the members
of qdisc_priv(sch), or it will break the old settings while
either of them is failed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoipv4: ip_forward: perform skb->pkt_type check at the beginning
Denis Kirjanov [Thu, 13 Feb 2014 04:58:56 +0000 (08:58 +0400)]
ipv4: ip_forward: perform skb->pkt_type check at the beginning

Packets which have L2 address different from ours should be
already filtered before entering into ip_forward().

Perform that check at the beginning to avoid processing such packets.

Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: remove unnecessary return's
stephen hemminger [Thu, 13 Feb 2014 04:51:22 +0000 (20:51 -0800)]
net: remove unnecessary return's

One of my pet coding style peeves is the practice of
adding extra return; at the end of function.
Kill several instances of this in network code.

I suppose some coccinelle wizardy could do this automatically.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotcp: remove unused min_cwnd member of tcp_congestion_ops
Stanislav Fomichev [Wed, 12 Feb 2014 13:35:21 +0000 (17:35 +0400)]
tcp: remove unused min_cwnd member of tcp_congestion_ops

Commit 684bad110757 "tcp: use PRR to reduce cwin in CWR state" removed all
calls to min_cwnd, so we can safely remove it.
Also, remove tcp_reno_min_cwnd because it was only used for min_cwnd.

Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobe2net: refactor multi-channel config code for Skyhawk-R chip
Vasundhara Volam [Wed, 12 Feb 2014 10:39:25 +0000 (16:09 +0530)]
be2net: refactor multi-channel config code for Skyhawk-R chip

Currently multi-channel configuration is read via the QUERY_FW_CONFIG cmd.
This method has been deprecated by the Skyhawk-R FW. Instead,
GET_PROFILE_CONFIG::port-desc must be used to query this configuration.

This patch also:
a) introduces a few macros to identify certain categories of multi-channel
configs
2) re-factors the be_cmd_set_profile_config() code to be able to read any kind
of desc (and not just the nic-desc.)

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobe2net: Update copyright year
Vasundhara Volam [Wed, 12 Feb 2014 10:39:07 +0000 (16:09 +0530)]
be2net: Update copyright year

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobe2net: Log a kernel message when UE is detected in BE & Skyhawk
Somnath Kotur [Wed, 12 Feb 2014 10:37:54 +0000 (16:07 +0530)]
be2net: Log a kernel message when UE is detected in BE & Skyhawk

This patch logs a kernel message when a HW error(SLIPORT_ERROR in Lancer and UE
in BEx/Skyhawk) is detected. The log message for BE3 was missing earlier.
This patch also refactors the code by segregating error-detection and reporting
code for Lancer and BEx/SH.

Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge tag 'linux-can-next-for-3.15-20140212' of git://gitorious.org/linux-can/linux...
David S. Miller [Thu, 13 Feb 2014 23:16:00 +0000 (18:16 -0500)]
Merge tag 'linux-can-next-for-3.15-20140212' of git://gitorious.org/linux-can/linux-can-next

linux-can-next-for-3.15-20140212

Marc Kleine-Budde says:

====================
this is a pull request of eight patches for net-next/master.

Florian Vaussard contributed a series that merged the sja1000 of_platform
into the platform driver. The of_platform driver is finally removed.
Stephane Grosjean supplied a patch to allocate CANFD skbs. In a patch
by Uwe Kleine-König another missing copyright information was added to
a userspace header. And a patch by Yoann DI RUZZA that adds listen only
mode to the at91_can driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosocket: replace some printk with pr_*
Yang Yingliang [Wed, 12 Feb 2014 09:09:55 +0000 (17:09 +0800)]
socket: replace some printk with pr_*

Prefer pr_*(...) to printk(KERN_* ...).

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosh_eth: use ETH_ZLEN instead of home-grown #define
Sergei Shtylyov [Fri, 14 Feb 2014 00:05:42 +0000 (03:05 +0300)]
sh_eth: use ETH_ZLEN instead of home-grown #define

The driver #define's and uses ETHERSMALL macro for the minimum Ethernet frame
size for which we have a standard macro ETH_ZLEN.  Use the latter  instead of
the home-grown one.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'tipc'
David S. Miller [Thu, 13 Feb 2014 22:57:11 +0000 (17:57 -0500)]
Merge branch 'tipc'

Jon Maloy says:

====================
tipc: clean up media and bearer layer

This commit series aims at facilitating future changes to the
locking policy around nodes, links and bearers.

Currently, we have a big read/write lock (net_lock) that is used for
serializing all changes to the node, link and bearer lists, as well
as to their mutual pointers and references.

But, in order to allow for concurrent access to the contents of these
structures, net_lock is only used in read mode by the data path code,
and hence a finer granular locking policy must be applied inside the
scope of net_lock: a spinlock (node_lock) for each node structure,
and another one (bearer_lock) for protection of bearer structures.

This locking policy has proved hard to maintain. We have several
times encountered contention problems between node_lock and
bearer_lock, and with the advent of the RCU locking mechanism we
feel it is anyway obsolete and ripe for improvements.

We now plan to replace net_lock with an RCU lock, as well as
getting rid of bearer_lock altogether. This will both reduce data
path overhead and make the code more manageable, while reducing the
risk of future lock contention problems.

Prior to these changes, we need to do some necessary cleanup and
code consolidation. This is what we do with this commit series,
before we finally remove bearer_lock. In a later series we will
replace net_lock with an RCU lock.

v2:
 - Re-inserted a removed kerneldoc entry in commit#5, based on
   feedback from D. Miller.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: add node_lock protection to link lookup function
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:18 +0000 (17:29 -0500)]
tipc: add node_lock protection to link lookup function

In an earlier commit, ("tipc: remove links list from bearer struct")
we described three issues that need to be pre-emptively resolved before
we can remove tipc_net_lock. Here we resolve issue a) described in that
commit:

"a) In access method #2, we access the link before taking the
    protecting node_lock. This will not work once net_lock is gone,
    so we will have to change the access order. We will deal with
    this in a later commit in this series."

Here, we change that access order, by ensuring that the function
link_find_link() returns only a safe reference for finding
the link, i.e., a node pointer and an index into its 'links' array,
not the link pointer itself. We also change all callers of this
function to first take the node lock before they can check if there
still is a valid link pointer at the returned index. Since the
function now returns a node pointer rather than a link pointer,
we rename it to the more appropriate 'tipc_link_find_owner().

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: remove bearer_lock from tipc_bearer struct
Ying Xue [Thu, 13 Feb 2014 22:29:17 +0000 (17:29 -0500)]
tipc: remove bearer_lock from tipc_bearer struct

After the earlier commits ("tipc: remove 'links' list from
tipc_bearer struct") and ("tipc: introduce new spinlock to protect
struct link_req"), there is no longer any need to protect struct
link_req or or any link list by use of bearer_lock. Furthermore,
we have eliminated the need for using bearer_lock during downcalls
(send) from the link to the bearer, since we have ensured that
bearers always have a longer life cycle that their associated links,
and always contain valid data.

So, the only need now for a lock protecting bearers is for guaranteeing
consistency of the bearer list itself. For this, it is sufficient, at
least for the time being, to continue applying 'net_lock´ in write mode.

By removing bearer_lock we also pre-empt introduction of issue b) descibed
in the previous commit "tipc: remove 'links' list from tipc_bearer struct":

"b) When the outer protection from net_lock is gone, taking
    bearer_lock and node_lock in opposite order of method 1) and 2)
    will become an obvious deadlock hazard".

Therefore, we now eliminate the bearer_lock spinlock.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: delay delete of link when failover is needed
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:16 +0000 (17:29 -0500)]
tipc: delay delete of link when failover is needed

When a bearer is disabled, all its attached links are deleted.
Ideally, we should do link failover to redundant links on other bearers,
if there are any, in such cases. This would be consistent with current
behavior when a link is reset, but not deleted. However, due to the
complexity involved, and the (wrongly) perceived low demand for this
feature, it was never implemented until now.

We mark the doomed link for deletion with a new flag, but wait until the
failover process is finished before we actually delete it. With the
improved link tunnelling/failover code introduced earlier in this commit
series, it is now easy to identify a spot in the code where the failover
is finished and it is safe to delete the marked link. Moreover, the test
for the flag and the deletion can be done synchronously, and outside the
most time critical data path.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: changes to general packet reception algorithm
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:15 +0000 (17:29 -0500)]
tipc: changes to general packet reception algorithm

We change the order of checking for destination users when processing
incoming packets. By placing the checks for users that may potentially
replace the processed buffer, i.e., CHANGEOVER_PROTOCOL and
MSG_FRAGMENTER, in a separate step before we check for the true end
users, we get rid of a label and a 'goto', at the same time making the
code more comprehensible and easy to follow.

This commit does not change any functionality, it is just a cosmetic
code reshuffle.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: rename stack variables in function tipc_link_tunnel_rcv
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:14 +0000 (17:29 -0500)]
tipc: rename stack variables in function tipc_link_tunnel_rcv

After the previous redesign of the tunnel reception algorithm and
functions, we finalize it by renaming a couple of stack variables
in tipc_tunnel_rcv(). This makes it more consistent with the naming
scheme elsewhere in this part of the code.

This change is purely cosmetic, with no functional changes.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: more cleanup of tunnelling reception function
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:13 +0000 (17:29 -0500)]
tipc: more cleanup of tunnelling reception function

We simplify and slim down the code in function tipc_tunnel_rcv()
No impact on the users of this function.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: change signature of tunnelling reception function
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:12 +0000 (17:29 -0500)]
tipc: change signature of tunnelling reception function

After the earlier commits in this series related to the function
tipc_link_tunnel_rcv(), we can now go further and simplify its
signature.

The function now consumes all DUPLICATE packets, and only returns such
ORIGINAL packets that are ready for immediate delivery, i.e., no
more link level protocol processing needs to be done by the caller.
As a consequence, the the caller, tipc_rcv(), does not access the link
pointer after call return, and it becomes unnecessary to pass a link
pointer reference in the call. Instead, we now only pass it the tunnel
link's owner node, which is sufficient to find the destination link for
the tunnelled packet.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: change reception of tunnelled failover packets
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:11 +0000 (17:29 -0500)]
tipc: change reception of tunnelled failover packets

When a link is reset, and there is a redundant link available, all
sender sockets will steer their subsequent traffic through the
remaining link. In order to guarantee preserved packet order and
cardinality during the transition, we tunnel the failing link's send
queue through the remaining link before we allow any sockets to use it.

In this commit, we change the algorithm for receiving failover
("ORIGINAL_MSG") packets in tipc_link_tunnel_rcv(), at the same time
delegating it to a new subfuncton, tipc_link_failover_rcv(). Instead
of directly returning an extracted inner packet to the packet reception
loop in tipc_rcv(), we first check if it is a message fragment, in which
case we append it to the reset link's fragment chain. If the fragment
chain is complete, we return the whole chain instead of the individual
buffer, eliminating any need for the tipc_rcv() loop to do reassembly of
tunneled packets.

This change makes it possible to further simplify tipc_link_tunnel_rcv(),
as well as the calling tipc_rcv() loop. We will do that in later
commits. It also makes it possible to identify a single spot in the code
where we can tell that a failover procedure is finished, something that
is useful when we are deleting links after a failover. This will also
be done in a later commit.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: change reception of tunnelled duplicate packets
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:10 +0000 (17:29 -0500)]
tipc: change reception of tunnelled duplicate packets

When a second link to a destination comes up, some sender sockets will
steer their subsequent traffic through the new link. In order to
guarantee preserved packet order and cardinality for those sockets, we
tunnel a duplicate of the old link's send queue through the new link
before we open it for regular traffic. The last arriving packet copy,
on whichever link, will be dropped at the receiving end based on the
original sequence number, to ensure that only one copy is delivered to
the end receiver.

In this commit, we change the algorithm for receiving DUPLICATE_MSG
packets, at the same time delegating it to a new subfunction,
tipc_link_dup_rcv(). Instead of returning an extracted inner packet to
the packet reception loop in tipc_rcv(), we just add it to the receiving
(new) link's deferred packet queue. The packet will then be processed by
that link when it receives its first non-tunneled packet, i.e., at
latest when the changeover procedure is finished.

Because tipc_link_tunnel_rcv()/tipc_link_dup_rcv() now is consuming all
packets of type DUPLICATE_MSG, the calling tipc_rcv() function can omit
testing for this. This in turn means that the current conditional jump
to the label 'protocol_check' becomes redundant, and we can remove that
label.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: remove 'links' list from tipc_bearer struct
Ying Xue [Thu, 13 Feb 2014 22:29:09 +0000 (17:29 -0500)]
tipc: remove 'links' list from tipc_bearer struct

In our ongoing effort to simplify the TIPC locking structure,
we see a need to remove the linked list for tipc_links
in the bearer. This can be explained as follows.

Currently, we have three different ways to access a link,
via three different lists/tables:

1: Via a node hash table:
   Used by the time-critical outgoing/incoming data paths.
   (e.g. link_send_sections_fast() and tipc_recv_msg() ):

grab net_lock(read)
   find node from node hash table
   grab node_lock
       select link
       grab bearer_lock
          send_msg()
       release bearer_lock
   release node lock
release net_lock

2: Via a global linked list for nodes:
   Used by configuration commands (link_cmd_set_value())

grab net_lock(read)
   find node and link from global node list (using link name)
   grab node_lock
       update link
   release node lock
release net_lock

(Same locking order as above. No problem.)

3: Via the bearer's linked link list:
   Used by notifications from interface (e.g. tipc_disable_bearer() )

grab net_lock(write)
   grab bearer_lock
      get link ptr from bearer's link list
      get node from link
      grab node_lock
         delete link
      release node lock
   release bearer_lock
release net_lock

(Different order from above, but works because we grab the
outer net_lock in write mode first, excluding all other access.)

The first major goal in our simplification effort is to get rid
of the "big" net_lock, replacing it with rcu-locks when accessing
the node list and node hash array. This will come in a later patch
series.

But to get there we first need to rewrite access methods ##2 and 3,
since removal of net_lock would introduce three major problems:

a) In access method #2, we access the link before taking the
   protecting node_lock. This will not work once net_lock is gone,
   so we will have to change the access order. We will deal with
   this in a later commit in this series, "tipc: add node lock
   protection to link found by link_find_link()".

b) When the outer protection from net_lock is gone, taking
   bearer_lock and node_lock in opposite order of method 1) and 2)
   will become an obvious deadlock hazard. This is fixed in the
   commit ("tipc: remove bearer_lock from tipc_bearer struct")
   later in this series.

c) Similar to what is described in problem a), access method #3
   starts with using a link pointer that is unprotected by node_lock,
   in order to via that pointer find the correct node struct and
   lock it. Before we remove net_lock, this access order must be
   altered. This is what we do with this commit.

We can avoid introducing problem problem c) by even here using the
global node list to find the node, before accessing its links. When
we loop though the node list we use the own bearer identity as search
criteria, thus easily finding the links that are associated to the
resetting/disabling bearer. It should be noted that although this
method is somewhat slower than the current list traversal, it is in
no way time critical. This is only about resetting or deleting links,
something that must be considered relatively infrequent events.

As a bonus, we can get rid of the mutual pointers between links and
bearers. After this commit, pointer dependency go in one direction
only: from the link to the bearer.

This commit pre-empts introduction of problem c) as described above.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: redefine 'started' flag in struct link to bitmap
Ying Xue [Thu, 13 Feb 2014 22:29:08 +0000 (17:29 -0500)]
tipc: redefine 'started' flag in struct link to bitmap

Currently, the 'started' field in struct tipc_link represents only a
binary state, 'started' or 'not started'. We need it to represent
more link execution states in the coming commits in this series.
Hence, we rename the field to 'flags', and define the current
started/non-started state to be represented by the LSB bit of
that field.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: move code for deleting links from bearer.c to link.c
Ying Xue [Thu, 13 Feb 2014 22:29:07 +0000 (17:29 -0500)]
tipc: move code for deleting links from bearer.c to link.c

We break out the code for deleting attached links in the
function bearer_disable(), and define a new function named
tipc_link_delete_list() to do this job.

This commit incurs no functional changes, but makes the code of
function bearer_disable() cleaner. It is also a preparation
for a more important change to the bearer code, in a subsequent
commit in this series.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: move code for resetting links from bearer.c to link.c
Ying Xue [Thu, 13 Feb 2014 22:29:06 +0000 (17:29 -0500)]
tipc: move code for resetting links from bearer.c to link.c

We break out the code for resetting attached links in the
function tipc_reset_bearer(), and define a new function named
tipc_link_reset_list() to do this job.

This commit incurs no functional changes, but makes the code
of function tipc_reset_bearer() cleaner. It is also a preparation
for a more important change to the bearer code, in a subsequent
commit in this series.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: stricter behavior of message reassembly function
Jon Paul Maloy [Thu, 13 Feb 2014 22:29:05 +0000 (17:29 -0500)]
tipc: stricter behavior of message reassembly function

The function tipc_link_recv_fragment(struct sk_buff **buf) currently
leaves the value of the input buffer pointer undefined when it returns,
except when the return code indicates that the reassembly is complete.
This despite the fact that it always consumes the input buffer.

Here, we enforce a stricter behavior by this function, ensuring that
the returned buffer pointer is non-NULL if and only if the reassembly
is complete. This makes it possible to test for the buffer pointer as
criteria for successful reassembly.

We also rename the function to tipc_link_frag_rcv(), which is both
shorter and more in line with common naming practice in the network
subsystem.

Apart from the new name, these changes have no impact on current
users of the function, but makes it more practical for use in some
planned future commits.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: explicitly include core.h in addr.h
Andreas Bofjäll [Wed, 12 Feb 2014 08:34:18 +0000 (09:34 +0100)]
tipc: explicitly include core.h in addr.h

The inline functions in addr.h uses tipc_own_addr which is exported by
core.h, but addr.h never actually includes it. It works because it is
explicitly included where this is used, but it looks a bit strange.

Include core.h in addr.h explicitly to make the dependency clearer.

Signed-off-by: Andreas Bofjäll <andreas.bofjall@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobonding: remove the redundant judgements for bond_option_queue_id_set()
dingtianhong [Wed, 12 Feb 2014 06:58:50 +0000 (14:58 +0800)]
bonding: remove the redundant judgements for bond_option_queue_id_set()

The dev_valid_name() will check the buffer length for input name, no need to
check it twice.

Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobonding: remove the redundant judgements for bond_set_mac_address()
dingtianhong [Wed, 12 Feb 2014 06:58:49 +0000 (14:58 +0800)]
bonding: remove the redundant judgements for bond_set_mac_address()

The dev_set_mac_address() will check the dev->netdev_ops->ndo_set_mac_address,
so no need to check it in bond_set_mac_address().

Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: allow setting mac address of loopback device
WANG Cong [Wed, 12 Feb 2014 01:21:26 +0000 (17:21 -0800)]
net: allow setting mac address of loopback device

We are trying to mirror the local traffic from lo to eth0,
allowing setting mac address of lo to eth0 would make
the ether addresses in these packets correct, so that
we don't have to modify the ether header again.

Since usually no one cares about its mac address (all-zero),
it is safe to allow those who care to set its mac address.

Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'i40e'
David S. Miller [Thu, 13 Feb 2014 22:27:33 +0000 (17:27 -0500)]
Merge branch 'i40e'

Aaron Brown says:

====================
Intel Wired LAN Driver Updates

This series contains updates to i40e and i40evf, primarily reset
handling / refactoring along with a fair amount of minor cleanup.

Jesse fixes some spelling, bumps the version and other trivial fixes.
Akeem sets a bit that is needed before shutdown in the case of
tx_timeout recovery failure.  Mitch refactors reset handling along
with a whole bunch of clean up.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: refactor reset handling
Mitch Williams [Thu, 13 Feb 2014 11:48:53 +0000 (03:48 -0800)]
i40evf: refactor reset handling

Respond better to a VF reset event. When a reset is signaled by the
PF, or detected by the watchdog task, prevent the watchdog from
processing admin queue requests, and schedule the reset task.

In the reset task, wait first for the reset to start, then for it to
complete, then reinit the driver.

If the reset never appears to complete after a long, long time (>10
seconds is possible depending on what's going on with the PF driver),
then set a flag to indicate that PF communications have failed.

If this flag is set, check for the reset to complete in the watchdog,
and  attempt to do a full reinitialization of the driver from scratch.

With these changes the VF driver correctly handles a PF reset event
while running on bare metal, or in a VM.

Also update copyrights.

Change-ID: I93513efd0b50523a8345e7f6a33a5e4f8a2a5996
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: change type of flags variable
Mitch Williams [Thu, 13 Feb 2014 11:48:52 +0000 (03:48 -0800)]
i40evf: change type of flags variable

As pointed out by Dan Carpenter (from Oracle), the flags variable is
declared as a 64-bit long but all of the flags are defined as u32,
which may lead to unintended consequences. Fix this by declaring flags
as u32 (since we don't need any more than about a dozen flags right
now), and remove the volatile qualifier, since it's unnecessary and
just makes checkpatch cry.

Change-ID: I137d3bb1842bf7e9456b5929ca54e3b0ed45dcab
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: don't store unnecessary array of strings
Mitch Williams [Thu, 13 Feb 2014 11:48:51 +0000 (03:48 -0800)]
i40evf: don't store unnecessary array of strings

Since we store the traffic vector names in the queue vector struct, we
don't need to maintain an array of strings for these names in the
adapter structure. Replace this array with a single string and use it
when allocating the misc irq vector.

Also update copyrights.

Change-ID: I664f096c3c008210d6a04a487163e8aa934fee5b
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: fix bogus comment
Mitch Williams [Thu, 13 Feb 2014 11:48:50 +0000 (03:48 -0800)]
i40evf: fix bogus comment

Locate the structure in the correct header file.

Change-ID: Ic7853131728812093a44a75d6b70953311a48dab
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: clean up adapter struct
Mitch Williams [Thu, 13 Feb 2014 11:48:49 +0000 (03:48 -0800)]
i40evf: clean up adapter struct

Remove a bunch of unused structure members that are just wasting
space. Remove a completely unused info structure definition as well.

Also update copyrights.

Change-ID: I028ab92d9b7bd13a832cf3363bd1dc6610d8a535
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: don't handle VF reset on unload
Mitch Williams [Thu, 13 Feb 2014 11:48:48 +0000 (03:48 -0800)]
i40e: don't handle VF reset on unload

Set the DOWN flag before attempting to disable VFs when unloading the
driver. Also, don't attempt to reset the VFs when the driver is
unloading, because the switch configuration will fail. This fixes a
panic on unload when VFs are enabled.

Change-ID: I25a6567e89c9687145f510ff4f630932412c5c5d
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: enable extant VFs
Mitch Williams [Thu, 13 Feb 2014 11:48:47 +0000 (03:48 -0800)]
i40e: enable extant VFs

If VFs are present when the driver loads, then set up some resources
so they can function.

Change-ID: I485916a811609a9990ce663d06dc645f625b07ff
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: reset VFs after PF reset
Mitch Williams [Thu, 13 Feb 2014 11:48:46 +0000 (03:48 -0800)]
i40e: reset VFs after PF reset

Reset all of the VFs after a PF reset, so that they are in a known
state, and the VF driver can detect the reset and reinit itself.

Change-ID: I93c5b3a0f8b1371d0da078f92de948b9d3a6413f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: set VF state to active when reset is complete
Mitch Williams [Thu, 13 Feb 2014 11:48:45 +0000 (03:48 -0800)]
i40e: set VF state to active when reset is complete

Without this, the VF can never communicate with the PF after a VF
reset.

Change-ID: I8d10f1d0d0638d50d39f0aff263422e05d83ad83
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: remove dead code
Mitch Williams [Thu, 13 Feb 2014 11:48:44 +0000 (03:48 -0800)]
i40e: remove dead code

This looks like a cut and paste error. The code makes no sense where
it is, and accomplishes nothing. Since we've removed the goto, we can
also get rid of the extraneous brackets.

Change-ID: I9315e3eafeee0a5713c94b0dc57b58b60a849124
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: Setting i40e_down bit for tx_timeout
Akeem G Abodunrin [Thu, 13 Feb 2014 11:48:43 +0000 (03:48 -0800)]
i40e: Setting i40e_down bit for tx_timeout

If tx_timeout recovery failed, then it becomes necessary to set
i40e_down bit before actually shutdown the connection.

Change-ID: Iaac81df0e302116571827aa0cff450697fbb7fa3
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: clean up memsets
Mitch Williams [Thu, 13 Feb 2014 11:48:42 +0000 (03:48 -0800)]
i40evf: clean up memsets

As politely pointed out by Dave Miller, calls to memset do not need a
void pointer cast. Additionally, it is preferred to use sizeof(*the
actual object) instead of sizeof(type).

Change-ID: Id6a02429b7040111531f3865ea03fbe619167cb3
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: trivial fixes
Jesse Brandeburg [Thu, 13 Feb 2014 11:48:41 +0000 (03:48 -0800)]
i40evf: trivial fixes

This change moves one operator up to the previous line and deletes
the duplicate declaration of ETH_ALEN.

Also update copyrights.

Change-ID: I88de73093b584e0f3b29d481ccd83fc4b1a1afa5
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: bump driver version
Jesse Brandeburg [Thu, 13 Feb 2014 11:48:40 +0000 (03:48 -0800)]
i40e: bump driver version

Update the driver version to 0.3.31-k.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: spelling error
Jesse Brandeburg [Thu, 13 Feb 2014 11:48:39 +0000 (03:48 -0800)]
i40e: spelling error

Fix a spelling error, s/extention/extension/.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoipx: implement shutdown()
Sabrina Dubroca [Sat, 8 Feb 2014 23:23:38 +0000 (00:23 +0100)]
ipx: implement shutdown()

IPX doesn't implement shutdown, which poses a problem to some users:

https://bugzilla.kernel.org/show_bug.cgi?id=67841

This patch is heavily based on the shutdown implementation for unix
sockets.

Reported-by: Bruno Jesus <00cpxxx@gmail.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'net_sched'
David S. Miller [Thu, 13 Feb 2014 00:23:53 +0000 (19:23 -0500)]
Merge branch 'net_sched'

Cong Wang says:

====================
net_sched: act: more cleanup and improvement

v2 -> v3:
* fix a mis-splitted patch
* keep hinfo as a pointer in ops

v1 -> v2:
* Fix a bug noticed by Jamal
* Drop patches already merged into net-next
* Add patch 5/5

Patches are cleanup's for the structures of tc actions, except patch 4
which is an improvement.

See each patch for details.
====================

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: act: clean up tca_action_flush()
WANG Cong [Wed, 12 Feb 2014 01:07:35 +0000 (17:07 -0800)]
net_sched: act: clean up tca_action_flush()

We could allocate tc_action on stack in tca_action_flush(),
since it is not large.

Also, we could use create_a() in tcf_action_get_1().

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: act: refuse to remove bound action outside
WANG Cong [Wed, 12 Feb 2014 01:07:34 +0000 (17:07 -0800)]
net_sched: act: refuse to remove bound action outside

When an action is bonnd to a filter, there is no point to
remove it outside. Currently we just silently decrease the refcnt,
we should reject this explicitly with EPERM.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: act: move tcf_hashinfo_init() into tcf_register_action()
WANG Cong [Wed, 12 Feb 2014 01:07:33 +0000 (17:07 -0800)]
net_sched: act: move tcf_hashinfo_init() into tcf_register_action()

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: act: refactor cleanup ops
WANG Cong [Wed, 12 Feb 2014 01:07:32 +0000 (17:07 -0800)]
net_sched: act: refactor cleanup ops

For bindcnt and refcnt etc., they are common for all actions,
not need to repeat such operations for their own, they can be unified
now. Actions just need to do its specific cleanup if needed.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: act: hide struct tcf_common from API
WANG Cong [Wed, 12 Feb 2014 01:07:31 +0000 (17:07 -0800)]
net_sched: act: hide struct tcf_common from API

Now we can totally hide it from modules. tcf_hash_*() API's
will operate on struct tc_action, modules don't need to care about
the details.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'bnx2x'
David S. Miller [Thu, 13 Feb 2014 00:16:03 +0000 (19:16 -0500)]
Merge branch 'bnx2x'

Yuval Mintz says:

====================
bnx2x: Enhancements & semantic changes series

This patch series contains several semantic (or mostly semantic) patches,
as well as adding support for packet aggregations on the receive path
of windows VMs and updating bnx2x to the new FW recently accepted upstream.

Please consider applying these patches to `net-next'.

(This is a repost as net-next was still closed when this was previously
sent)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: utilize FW 7.8.19
Dmitry Kravkov [Wed, 12 Feb 2014 16:19:57 +0000 (18:19 +0200)]
bnx2x: utilize FW 7.8.19

    This new firmware fixes following bugs:
     1. HW attention appears and traffic stops when iSCSI firmware tries to
        retransmit iSCSI login command when the iSCSI login is carrying data
        not aligned to 4-bytes.
     2. FCoE traffic fails to run when running in switch-independent multi-function
        mode and there's more than one interface supporting FCoE on a given port.
     3. While two ports are running FCoE with at least one of them has a function
        number (>1) on the same engine in a 4-port device a zeroed CQE is given,
        causing FCoE traffic to stop.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: (semantic) revise scheduling of sp_rtnl
Yuval Mintz [Wed, 12 Feb 2014 16:19:56 +0000 (18:19 +0200)]
bnx2x: (semantic) revise scheduling of sp_rtnl

This removes the various points where the driver use bit operations in order
to schedule the sp_rtnl_task from the code, adding a single utility function
that does it instead.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: Fix bnx2x_panic_dump for VFs
Yuval Mintz [Wed, 12 Feb 2014 16:19:55 +0000 (18:19 +0200)]
bnx2x: Fix bnx2x_panic_dump for VFs

bnx2x_panic_dump() prints all kind of driver information, including slowpath
information. Since VFs don't initialize slowpath information, a VF reaching
this flow will likely cause a panic in the system as it will access NULL
pointers.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: Revise IOV vlan/mac validation
Yuval Mintz [Wed, 12 Feb 2014 16:19:54 +0000 (18:19 +0200)]
bnx2x: Revise IOV vlan/mac validation

There are several places in IOV related flows where PF needs to determine
whether a VF slowpath elements have already been configured (i.e., this
affect its ability to configure/remove classifications for the VF).

This patch changes the conditions for the validation and performs a cleaner
validation (e.g., by replacing several validations with a single one).

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: Add support in PF driver for RSC
Michal Kalderon [Wed, 12 Feb 2014 16:19:53 +0000 (18:19 +0200)]
bnx2x: Add support in PF driver for RSC

This provides PF-side support for VFs assigned to a VM running windows
2012 with the RSC feature enabled.

Signed-off-by: Michal Kalderon <michals@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: Semantic Validate vlan/mac changes
Yuval Mintz [Wed, 12 Feb 2014 16:19:52 +0000 (18:19 +0200)]
bnx2x: Semantic Validate vlan/mac changes

This is purely semantic - break the flow in which PF validates the VF
classification filtering requirement is valid into several sub-functions
for better readable code.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: Remove unnecessary internal mem config
Ariel Elior [Wed, 12 Feb 2014 16:19:51 +0000 (18:19 +0200)]
bnx2x: Remove unnecessary internal mem config

Latest FW performs this autonomously, makes this code surplus.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: Remove unused iov code
Yuval Mintz [Wed, 12 Feb 2014 16:19:50 +0000 (18:19 +0200)]
bnx2x: Remove unused iov code

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobnx2x: [Debug] change verbosity of some prints
Yuval Mintz [Wed, 12 Feb 2014 16:19:49 +0000 (18:19 +0200)]
bnx2x: [Debug] change verbosity of some prints

There are some debug prints (mostly iov/statistics related) which clobber
system logs whenever their verbosity level is set for an interface.
This patch puts harsher verbosity requirements for such debug prints to be
printed.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: expose phydev->has_fixups to sysfs
Florian Fainelli [Wed, 12 Feb 2014 01:27:42 +0000 (17:27 -0800)]
net: phy: expose phydev->has_fixups to sysfs

Expose the PHY device has_fixups boolean as a sysfs property to help
troubleshooting PHY configurations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: add "has_fixups" boolean property
Florian Fainelli [Wed, 12 Feb 2014 01:27:41 +0000 (17:27 -0800)]
net: phy: add "has_fixups" boolean property

Add a boolean property which indicates if the PHY has had any fixup
routine ran on it. We are later going to use that boolean to expose it
as a sysfs property to help troubleshooting.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: expose PHY device interface mode
Florian Fainelli [Wed, 12 Feb 2014 01:27:40 +0000 (17:27 -0800)]
net: phy: expose PHY device interface mode

Expose the PHY device interface mode through sysfs since this is an
useful piece of information for knowing how the attached networking
device will have configured its transmit/receive path.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: re-design phy_modes to be self-contained
Florian Fainelli [Wed, 12 Feb 2014 01:27:39 +0000 (17:27 -0800)]
net: phy: re-design phy_modes to be self-contained

of_get_phy_mode() uses a local array to map phy_interface_t values from
include/linux/net/phy.h to a string which is read from the 'phy-mode' or
'phy-connection-type' property. In preparation for exposing the PHY
interface mode through sysfs, perform the following:

- mode phy_modes from drivers/of/of_net.c to include/linux/phy.h such
  that it is right below the phy_interface_t enum
- make it a static inline function returning the string such that we can
  use it by just including include/linux/net/phy.h
- add a PHY_INTERFACE_MODE_MAX enum value to guard the iteration in
  of_get_phy_mode()

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: fix phy_{clear,config}_interrupt comment typos
Florian Fainelli [Wed, 12 Feb 2014 01:27:38 +0000 (17:27 -0800)]
net: phy: fix phy_{clear,config}_interrupt comment typos

The comments above phy_{clear,config}_interrupt used the word "on"
instead of "or", when talking about the return values of the functions,
fix these two typos.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: allow driver to implement their own aneg_done
Florian Fainelli [Wed, 12 Feb 2014 01:27:37 +0000 (17:27 -0800)]
net: phy: allow driver to implement their own aneg_done

Some PHYs out there can be very quirky with respect to how they would
report the auto-negotiation is completed. Allow drivers to override the
generic aneg_done() implementation by providing their own.

Since not all drivers have been updated yet to use genphy_aneg_done() as
aneg_done() callback, we explicitely check that this callback is valid
before calling into it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: add genphy_aneg_done()
Florian Fainelli [Wed, 12 Feb 2014 01:27:36 +0000 (17:27 -0800)]
net: phy: add genphy_aneg_done()

In preparation for allowing PHY drivers to potentially override their
auto-negotiation done callback, move the contents of phy_aneg_done() to
genphy_aneg_done() since that function really is the generic
implementation based on the BMSR_ANEGCOMPLETE status.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: display human readable PHY speed settings
Florian Fainelli [Wed, 12 Feb 2014 01:27:35 +0000 (17:27 -0800)]
net: phy: display human readable PHY speed settings

Use a convenience function: phy_speed_to_str() which will display human
readable speeds.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: update phy_print_status to show pause settings
Florian Fainelli [Wed, 12 Feb 2014 01:27:34 +0000 (17:27 -0800)]
net: phy: update phy_print_status to show pause settings

Update phy_print_status() to also display the PHY device pause settings
(rx/tx or off).

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: phy: use network device in phy_print_status
Florian Fainelli [Wed, 12 Feb 2014 01:27:33 +0000 (17:27 -0800)]
net: phy: use network device in phy_print_status

phy_print_status() currently uses dev_name(&phydev->dev) which will
usually result in printing something along those lines for Device Tree
aware drivers:

libphy: f0b60000.etherne:0a - Link is Down
libphy: f0ba0000.etherne:00 - Link is Up - 1000/Full

This is not terribly useful for network administrators or users since we
expect a network interface name to be able to correlate link events with
interfaces. Update phy_print_status() to use netdev_info() with
phydev->attached_dev which is the backing network device for our PHY
device. The leading dash is removed since netdev_info() prefixes the
messages with "<interface>: " already.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'sfc'
David S. Miller [Wed, 12 Feb 2014 22:53:43 +0000 (17:53 -0500)]
Merge branch 'sfc'

Shradha Shah says:

====================
Cleanup patches for the SFC driver

This patch set consists of some cleanup and housekeeping
patches for the sfc driver.
These patches help to reduce the differences between the in-
tree and out-of-tree driver.

Ben Hutchings (12):
  sfc: Cache skb->data in local variable in efx_ptp_rx()
  sfc: Rewrite adjustment of PPS event in a clearer way
  sfc: Replace TSOH_OFFSET with the equivalent NET_IP_ALIGN
  sfc: Rename 'use_options' variable in tso_start() to clearer
    'use_opt_desc'
  sfc: Remove unused definitions of EF10 user-mode DMA descriptors
  sfc: Correct comment about number of TX queues used on EF10
  sfc: Preserve rx_frm_trunc counters when resizing DMA rings
  sfc: Use canonical pointer type for MAC address in
    efx_set_mac_address()
  sfc: Update product naming
  sfc: Cosmetic changes to self-test from the out-of-tree driver
  sfc: Fail self-test with -EBUSY, not -EIO, if the device is busy
  sfc: Add/remove blank lines to taste

Laurence Evans (1):
  sfc: Removed adhoc scheme to rate limit PTP event queue overflow
    message
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Add/remove blank lines to taste
Ben Hutchings [Wed, 12 Feb 2014 19:00:37 +0000 (19:00 +0000)]
sfc: Add/remove blank lines to taste

Remove trailing blank lines in several files.
Use only one blank line between functions.
Add a blank line as a separator in a few places.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Fail self-test with -EBUSY, not -EIO, if the device is busy
Ben Hutchings [Wed, 12 Feb 2014 19:00:28 +0000 (19:00 +0000)]
sfc: Fail self-test with -EBUSY, not -EIO, if the device is busy

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Cosmetic changes to self-test from the out-of-tree driver
Ben Hutchings [Wed, 12 Feb 2014 19:00:16 +0000 (19:00 +0000)]
sfc: Cosmetic changes to self-test from the out-of-tree driver

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Update product naming
Ben Hutchings [Wed, 12 Feb 2014 19:00:07 +0000 (19:00 +0000)]
sfc: Update product naming

We don't use 'Solarstorm' or 'Solarflare Communications' in full
any more.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Use canonical pointer type for MAC address in efx_set_mac_address()
Ben Hutchings [Wed, 12 Feb 2014 18:59:54 +0000 (18:59 +0000)]
sfc: Use canonical pointer type for MAC address in efx_set_mac_address()

Functions such as is_valid_ether_addr() expect u8 *, so use that
instead of char *.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Rename 'use_options' variable in tso_start() to clearer 'use_opt_desc'
Ben Hutchings [Wed, 12 Feb 2014 18:59:41 +0000 (18:59 +0000)]
sfc: Rename 'use_options' variable in tso_start() to clearer 'use_opt_desc'

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Preserve rx_frm_trunc counters when resizing DMA rings
Ben Hutchings [Wed, 12 Feb 2014 18:59:28 +0000 (18:59 +0000)]
sfc: Preserve rx_frm_trunc counters when resizing DMA rings

We allocate efx_channel structures with kzalloc() so we don't need to
zero-initialise individual fields in efx_probe_channel().  Further,
this function will be called again during DMA ring resizing and we
should not reset any statistics then.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Correct comment about number of TX queues used on EF10
Ben Hutchings [Wed, 12 Feb 2014 18:59:19 +0000 (18:59 +0000)]
sfc: Correct comment about number of TX queues used on EF10

EF10 implements option descriptors to switch TX checksum offload
on and off between packets.  We could therefore use a single
hardware TX queue per kernel TX queue, although we don't yet.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Remove unused definitions of EF10 user-mode DMA descriptors
Ben Hutchings [Wed, 12 Feb 2014 18:59:07 +0000 (18:59 +0000)]
sfc: Remove unused definitions of EF10 user-mode DMA descriptors

These DMA descriptor types will only be used by the userland
networking stack.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Replace TSOH_OFFSET with the equivalent NET_IP_ALIGN
Ben Hutchings [Wed, 12 Feb 2014 18:58:57 +0000 (18:58 +0000)]
sfc: Replace TSOH_OFFSET with the equivalent NET_IP_ALIGN

If CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is defined then NET_IP_ALIGN
will be defined as 0, so this macro is redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Rewrite adjustment of PPS event in a clearer way
Ben Hutchings [Wed, 12 Feb 2014 18:58:46 +0000 (18:58 +0000)]
sfc: Rewrite adjustment of PPS event in a clearer way

There is substantial latency in generation and handling of PPS events
from the NIC, which we have to correct for before passing a host
timestamp to the PPS subsystem.  We compare clocks with the MC,
giving us two offsets to subtract from the timestamp generated by
pps_get_ts():

(a) Time from the last good sync (where we got host and NIC timestamps
    for nearly the same instant) to the time we called pps_get_ts()
(b) Time from NIC top of second to the last good sync

We currently calculate (a) + (b) in a quite confusing way.
Instead, calculate (a) completely, then add (b) to it.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Cache skb->data in local variable in efx_ptp_rx()
Ben Hutchings [Wed, 12 Feb 2014 18:58:34 +0000 (18:58 +0000)]
sfc: Cache skb->data in local variable in efx_ptp_rx()

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Removed adhoc scheme to rate limit PTP event queue overflow message
Laurence Evans [Wed, 12 Feb 2014 18:58:24 +0000 (18:58 +0000)]
sfc: Removed adhoc scheme to rate limit PTP event queue overflow message

Use conventional net_ratelimit() instead.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'ethtool_docs'
David S. Miller [Wed, 12 Feb 2014 22:33:39 +0000 (17:33 -0500)]
Merge branch 'ethtool_docs'

Ben Hutchings says:

====================
ethtool: Improve documentation

This series converts most comments in <linux/ethtool.h> into kernel-doc
format, and expands them to describe the semantics as well as I
understand them.  It also fixes some kernel-doc formatting errors.

I started on this at Solarflare, but they graciously allowed me to take
it away and finish it off.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethtool: Fix unwanted section breaks in kernel-doc
Ben Hutchings [Wed, 12 Feb 2014 22:15:09 +0000 (22:15 +0000)]
ethtool: Fix unwanted section breaks in kernel-doc

A colon almost unavoidably starts a new section.  The script should be
changed to provide a way to avoid this, but for now reword the
comments to avoid using colons.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethtool: Move kernel-doc comment next to struct ethtool_dump definition
Ben Hutchings [Wed, 12 Feb 2014 22:14:59 +0000 (22:14 +0000)]
ethtool: Move kernel-doc comment next to struct ethtool_dump definition

The kernel-doc script does not tolerate the macro definition in between.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethtool: Document the general convention for VLAs in kernel space
Ben Hutchings [Wed, 12 Feb 2014 22:14:53 +0000 (22:14 +0000)]
ethtool: Document the general convention for VLAs in kernel space

Various ethtool command structures are declared with zero-length array
at the end which are intended to be variable-length in userland
(relying on lack of compiler bounds checking).  However, in the kernel
the structure and array are always allocated and passed to driver
operations separately.  Make that explicit.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethtool: Expand documentation of struct ethtool_perm_addr
Ben Hutchings [Wed, 12 Feb 2014 22:14:48 +0000 (22:14 +0000)]
ethtool: Expand documentation of struct ethtool_perm_addr

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethtool: Expand documentation of struct ethtool_stats
Ben Hutchings [Wed, 12 Feb 2014 22:14:43 +0000 (22:14 +0000)]
ethtool: Expand documentation of struct ethtool_stats

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethtool: Expand documentation of struct ethtool_test
Ben Hutchings [Wed, 12 Feb 2014 22:14:38 +0000 (22:14 +0000)]
ethtool: Expand documentation of struct ethtool_test

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethtool: Expand documentation of string set types
Ben Hutchings [Wed, 12 Feb 2014 22:14:33 +0000 (22:14 +0000)]
ethtool: Expand documentation of string set types

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>