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1) original driver only resets DMA used by descriptor rings
which can't guarantee it can recover all various kinds of fatal
errors, so the patch tries to reset the underlying hardware
resource from scratch on Mediatek SoC required for ethernet
running, including power, pin mux control, clock and internal
circuits on the ethernet in order to restore into the initial
state which the rebooted machine gives.
2) add state variable inside structure mtk_eth to help distinguish
mtk_hw_init is called between the initialization during boot time
or re-initialization during the reset process.
3) add ge_mode variable inside structure mtk_mac for restoring
the interface mode of the current setup for the target MAC.
4) remove __init attribute from mtk_hw_init definition
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
introduce power domain control which the digital circuit of
the ethernet belongs to inside the flow of hardware initialization
and deinitialization which helps the entire ethernet hardware block
could restart cleanly and completely as being back to the initial
state when the whole machine reboot.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This cleans up the error path inside mtk_hw_init call, causing it able
to exit appropriately when something fails and also includes refactoring
mtk_cleanup call to make the partial logic reusable on the error path.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
grouping things related to the deinitialization of what
mtk_hw_init call does that help to be reused by the reset
process and the error path handling.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
the existing mtk_hw_init includes hardware and software
initialization inside so that it is slightly hard to reuse
them for the process of the reset recovery, so some splitting
is made here for keeping hardware initializing relevant thing
and the else such as IRQ registration and MDIO initialization
what are all about to the interface of core driver moved to the
other proper place because they have no needs to register IRQ and
re-initialize structure again during the reset process.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'rxrpc-rewrite-20160913-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Support IPv6
Here is a set of patches that add IPv6 support. They need to be applied on
top of the just-posted miscellaneous fix patches. They are:
(1) Make autobinding of an unconnected socket work when sendmsg() is
called to initiate a client call.
(2) Don't specify the protocol when creating the client socket, but rather
take the default instead.
(3) Use rxrpc_extract_addr_from_skb() in a couple of places that were
doing the same thing manually. This allows the IPv6 address
extraction to be done in fewer places.
(4) Add IPv6 support. With this, calls can be made to IPv6 servers from
userspace AF_RXRPC programs; AFS, however, can't use IPv6 yet as the
RPC calls need to be upgradeable.
====================
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'rxrpc-rewrite-20160913-1' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Miscellaneous fixes
Here's a set of miscellaneous fix patches. There are a couple of points of
note:
(1) There is one non-fix patch that adjusts the call ref tracking
tracepoint to make kernel API-held refs on calls more obvious. This
is a prerequisite for the patch that fixes prealloc refcounting.
(2) The final patch alters how jumbo packets that partially exceed the
receive window are handled. Previously, space was being left in the
Rx buffer for them, but this significantly hurts performance as the Rx
window can't be increased to match the OpenAFS Tx window size.
Instead, the excess subpackets are discarded and an EXCEEDS_WINDOW ACK
is generated for the first. To avoid the problem of someone trying to
run the kernel out of space by feeding the kernel a series of
overlapping maximal jumbo packets, we stop allowing jumbo packets on a
call if we encounter more than three jumbo packets with duplicate or
excessive subpackets.
====================
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Varun Prakash says:
====================
iw_cxgb4,cxgbit: remove duplicate code
This patch series removes duplicate code from
iw_cxgb4 and cxgbit by adding common function
definitions in libcxgb.
Please review.
====================
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_mk_rx_data_ack() to remove duplicate
code to form CPL_RX_DATA_ACK hardware command.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_mk_abort_rpl() to remove duplicate
code to form CPL_ABORT_RPL hardware command.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_mk_abort_req() to remove duplicate code
to form CPL_ABORT_REQ hardware command.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_mk_close_con_req() to remove duplicate
code to form CPL_CLOSE_CON_REQ hardware command.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_mk_tid_release() to remove duplicate code
to form CPL_TID_RELEASE hardware command.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_compute_wscale() in libcxgb_cm.h to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_best_mtu() in libcxgb_cm.h to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_is_neg_adv() in libcxgb_cm.h to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_find_route6() in libcxgb_cm.c to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_find_route() in libcxgb_cm.c to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add cxgb_get_4tuple() in libcxgb_cm.c to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ovs kernel data path currently defers the execution of all
recirc actions until stack utilization is at a minimum.
This is too limiting for some packet forwarding scenarios due to
the small size of the deferred action FIFO (10 entries). For
example, broadcast traffic sent out more than 10 ports with
recirculation results in packet drops when the deferred action
FIFO becomes full, as reported here:
http://openvswitch.org/pipermail/dev/2016-March/067672.html
Since the current recursion depth is available (it is already tracked
by the exec_actions_level pcpu variable), we can use it to determine
whether to execute recirculation actions immediately (safe when
recursion depth is low) or defer execution until more stack space is
available.
With this change, the deferred action fifo size becomes a non-issue
for currently failing scenarios because it is no longer used when
there are three or fewer recursions through ovs_execute_actions().
Suggested-by: Pravin Shelar <pshelar@ovn.org>
Signed-off-by: Lance Richardson <lrichard@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz says:
====================
net/sched: cls_flower: Add ports masks
This series adds the ability to specify tcp/udp ports masks
for TC/flower filter matches.
I also removed an unused fields from the flower keys struct
and clarified the format of the recently added vlan attibutes.
v1--> v2 changes:
* fixes typo in patch #2 title and change log (Sergei)
* added acks provided by Jiri on v1
FWIW, by mistake the cover letter of V1 (but not the patches)
carried V2 tag, hope this doesn't create too much confusion.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Specify the format (size and endianess) for the vlan attributes.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit c3f8324188 "net: Add full IPv6 addresses to flow_keys" added an
unused instance of struct flow_dissector_key_addrs into struct fl_flow_key,
remove it.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the definitions for src/dst udp/tcp port masks and use
them when setting && dumping the relevant keys.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 9ee7b683ea we moved the enablement of msi interrupts earlier in
alx_init_intr. If there is an error in alx_alloc_rings, __alx_open returns
with an error but msi (or msi-x) interrupts stays enabled. Add a new error
label to disable msi (or msi-x) interrupts.
Fixes: 9ee7b683ea ("alx: refactor msi enablement and disablement")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The checksum provided by the device doesn't include the L3 headers,
as IPv6 expects
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This action is intended to be an upgrade from a usability perspective
from pedit (as well as operational debugability).
Compare this:
sudo tc filter add dev $ETH parent 1: protocol ip prio 10 \
u32 match ip protocol 1 0xff flowid 1:2 \
action pedit munge offset -14 u8 set 0x02 \
munge offset -13 u8 set 0x15 \
munge offset -12 u8 set 0x15 \
munge offset -11 u8 set 0x15 \
munge offset -10 u16 set 0x1515 \
pipe
to:
sudo tc filter add dev $ETH parent 1: protocol ip prio 10 \
u32 match ip protocol 1 0xff flowid 1:2 \
action skbmod dmac 02:15:15:15:15:15
Also try to do a MAC address swap with pedit or worse
try to debug a policy with destination mac, source mac and
etherype. Then make few rules out of those and you'll get my point.
In the future common use cases on pedit can be migrated to this action
(as an example different fields in ip v4/6, transports like tcp/udp/sctp
etc). For this first cut, this allows modifying basic ethernet header.
The most important ethernet use case at the moment is when redirecting or
mirroring packets to a remote machine. The dst mac address needs a re-write
so that it doesnt get dropped or confuse an interconnecting (learning) switch
or dropped by a target machine (which looks at the dst mac). And at times
when flipping back the packet a swap of the MAC addresses is needed.
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann says:
====================
Misc cls_bpf/act_bpf improvements
Two minor improvements to {cls,act}_bpf. For details please see
individual patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We have a small skb_at_tc_ingress() helper for testing for ingress, so
make use of it. cls_bpf already uses it and so should act_bpf.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The skb_mac_header_was_set() test in cls_bpf's and act_bpf's fast-path is
actually unnecessary and can be removed altogether. This was added by
commit a166151cbe ("bpf: fix bpf helpers to use skb->mac_header relative
offsets"), which was later on improved by 3431205e03 ("bpf: make programs
see skb->data == L2 for ingress and egress"). We're always guaranteed to
have valid mac header at the time we invoke cls_bpf_classify() or tcf_bpf().
Reason is that since 6d1ccff627 ("net: reset mac header in dev_start_xmit()")
we do skb_reset_mac_header() in __dev_queue_xmit() before we could call
into sch_handle_egress() or any subsequent enqueue. sch_handle_ingress()
always sees a valid mac header as well (things like skb_reset_mac_len()
would badly fail otherwise). Thus, drop the unnecessary test in classifier
and action case.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove rcu_read_lock protection from tunnel_key_dump and use
rtnl_dereference, dump operation is protected by rtnl lock.
Also, remove rcu_read_lock from tunnel_key_release and use
rcu_dereference_protected.
Both operations are running exclusively and a writer couldn't modify
t->params while those functions are executed.
Fixes: 54d94fd89d90 ('net/sched: Introduce act_tunnel_key')
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit d5709f7ab7 ("flow_dissector: For stripped vlan, get vlan
info from skb->vlan_tci") made flow dissector look at vlan_proto
when vlan is present. Since test_bpf sets skb->vlan_tci to ~0
(including VLAN_TAG_PRESENT) we have to populate skb->vlan_proto.
Fixes false negative on test #24:
test_bpf: #24 LD_PAYLOAD_OFF jited:0 175 ret 0 != 42 FAIL (1 times)
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dinan Gunawardena <dinan.gunawardena@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The newline escape is incorrect and needs fixing. Also adjust source
formatting / indentation and add { } to trailing else.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For an array, there's no need to use &array, so just use the
plain wiphy->addresses[i].addr here to silence smatch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Based on consecutive msdu failures, mac80211 triggers CQM packet-loss
mechanism. Drivers like ath10k that have its own connection monitoring
algorithm, offloaded to firmware for triggering station kickout. In case
of station kickout, driver will report low ack status by mac80211 API
(ieee80211_report_low_ack).
This flag will enable the driver to completely rely on firmware events
for station kickout and bypass mac80211 packet loss mechanism.
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
No drivers implement this, relying either on the recursive
directory removal to remove their debugfs, or not having any
to start with. Remove the dead driver callback.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If chanctx is derived as container_of() from a non-NULL pointer,
it can't ever be NULL. Since we checked conf before, that's true
here, so remove the useless NULL check.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The next line overwrites this assignment, so remove it; there's
no real value in using it for the next assignment either.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
A few instances were found where we didn't check them, add the
missing checks even though they'll probably never trigger as
the message should be large enough here.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If the message got full during nla_nest_start(), it can return
NULL. None of the cases here seem like that can really happen,
but check the return value nonetheless.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Passing the 'info' pointer where a 'info->aborted' is expected will
always lead to tracing to erroneously record that the scan was aborted,
fix that by passing the correct info->aborted. The remaining data will
be collected in cfg80211, so I haven't duplicated it here.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In the unlikely situation that the supplicant has negotiated
admission for the background AC (which it has no reason to as
it's not supposed to be requiring admission control to start
with, and we'd ignore such a requirement anyway), the loop
here may terminate with non_acm_ac == 4, which leads to an
array overrun.
Check this explicitly just for completeness.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There's no point in allowing connect keys when one of them
isn't also configured as the TX key, it would just confuse
drivers and probably cause them to pick something for TX.
Disallow this confusing and erroneous configuration.
As wpa_supplicant will always send NL80211_ATTR_KEYS, even
when there are no keys inside, allow that and treat it as
though the attribute isn't present at all.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Similar to pcie8997 chipset, first firmware submitted for usb8997
chipset will be usbusb8997_combo_v4.bin. This patch corrects the
name used in driver.
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Firmware image for newer USB chipsets starts with a command 7 block
(special command). It doesn't contain data length field. This patch adds
necessary handling.
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
For structure types defined in the same file or local header files, find
top-level static structure declarations that have the following
properties:
1. Never reassigned.
2. Address never taken
3. Not passed to a top-level macro call
4. No pointer or array-typed field passed to a function or stored in a
variable.
Declare structures having all of these properties as const.
Done using Coccinelle.
Based on a suggestion by Joe Perches <joe@perches.com>.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
For structure types defined in the same file or local header files, find
top-level static structure declarations that have the following
properties:
1. Never reassigned.
2. Address never taken
3. Not passed to a top-level macro call
4. No pointer or array-typed field passed to a function or stored in a
variable.
Declare structures having all of these properties as const.
Done using Coccinelle.
Based on a suggestion by Joe Perches <joe@perches.com>.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
For structure types defined in the same file or local header files, find
top-level static structure declarations that have the following
properties:
1. Never reassigned.
2. Address never taken
3. Not passed to a top-level macro call
4. No pointer or array-typed field passed to a function or stored in a
variable.
Declare structures having all of these properties as const.
Done using Coccinelle.
Based on a suggestion by Joe Perches <joe@perches.com>.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Trivial fix to spelling mistakes in dev_dbg message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
If the USB dongle is still attached, reset it on module unload to
avoid scans failing when reloading the driver.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
