Commit Graph

72265 Commits

Author SHA1 Message Date
Igor Mitsyanko
5face518d4 qtnfmac: SCAN results: retreive frame type information from "IE set" TLV
"IE set" TLV carries the same information as
qlink_event_scan_result::frame_type. Convert the event to make use of
TLV and drop frame_type member.
While at it, make qlink_event_scan_result structure alignement-safe.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:30:56 +02:00
Igor Mitsyanko
18b7470f92 qtnfmac: extend "IE set" TLV to include frame type info
Specifying frame type for "IE set" TLV will allow to use several
TLVs in a single message.
Modify users accordingly.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:30:56 +02:00
Igor Mitsyanko
d1398b5b34 qtnfmac: get rid of PHYMODE capabilities flags
Supported WiFi operation modes are now identified per-band based on
HT/VHT capabilities of each band.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:30:55 +02:00
Igor Mitsyanko
d42df85f7d qtnfmac: initialize HT/VHT caps "can override" masks
Information on which HT/VHT capabilities can be overridden is reported
per-MAC by wireless device.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:30:55 +02:00
Igor Mitsyanko
e294cbfda0 qtnfmac: use per-band HT/VHT info from wireless device
HT/VHT capabilities must be reported per each band supported by a radio,
not for all bands on a radio. Furthermore, driver better not assume
any capabilities and just use whetever is reported by device itself.

To support this, convert "get channels" command into "get band info"
command. Difference is that it may also carry HT/VHT capabilities along
with channels information.

While at it, also add "num_bitrates" field to "get band info" command,
for future use.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:30:54 +02:00
Arend Van Spriel
bd99a3013b brcmfmac: move configuration of probe request IEs
The configuration of the IEs for probe requests was done in a P2P
related function, which is not very obvious. Moving it to
.scan callback function, ie. brcmf_cfg80211_scan().

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:28:51 +02:00
Arend Van Spriel
bbf35414cd brcmfmac: get rid of struct brcmf_cfg80211_info::active_scan field
The field struct brcmf_cfg80211_info::active_scan is set to true upon
initializing the driver instance, but it is never changed so simply
get rid of it.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:28:50 +02:00
Arend Van Spriel
588378f15c brcmfmac: get rid of brcmf_cfg80211_escan() function
The function brcmf_cfg80211_escan() is only called by brcmf_cfg80211_scan()
so there is no reason to split in two function especially since the latter
does not do an awful lot.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:28:49 +02:00
Arend Van Spriel
df2d8388bc brcmfmac: use msecs_to_jiffies() instead of calculation using HZ
Minor cleanup using provided macro to convert milliseconds interval
to jiffies in brcmf_cfg80211_escan().

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:28:49 +02:00
Arend Van Spriel
8c6efda22f brcmfmac: cleanup brcmf_cfg80211_escan() function
The function brcmf_cfg80211_escan() was always called with a non-null
request parameter and null pointer for this_ssid parameter. Clean up
the function removing the dead code path.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:28:48 +02:00
Franky Lin
6c219b0088 brcmfmac: disable packet filtering in promiscuous mode
Disable arp and nd offload to allow all packets sending to host.

Reported-by: Phil Elwell <phil@raspberrypi.org>
Tested-by: Phil Elwell <phil@raspberrypi.org>
Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:28:48 +02:00
Arend Van Spriel
2fd3877b5b brcmfmac: handle FWHALT mailbox indication
The firmware uses a mailbox to communicate to the host what is going
on. In the driver we validate the bit received. Various people seen
the following message:

 brcmfmac: brcmf_sdio_hostmail: Unknown mailbox data content: 0x40012

Bit 4 is cause of this message, but this actually indicates the firmware
has halted. Handle this bit by giving a more meaningful error message.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-10 04:28:47 +02:00
David S. Miller
4dc6758d78 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Simple cases of overlapping changes in the packet scheduler.

Must easier to resolve this time.

Which probably means that I screwed it up somehow.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-10 10:00:18 +09:00
Gal Pressman
f938daeee9 net/mlx5e: CHECKSUM_COMPLETE offload for VLAN/QinQ packets
When the VLAN tag is present in the packet buffer (i.e VLAN stripping disabled, QinQ)
the driver will currently report CHECKSUM_UNNECESSARY.
Instead of using CHECKSUM_COMPLETE offload for packets with first
ethertype of IPv4/6, use it for packets with last ethertype of IPv4/6 to
cover the former cases as well.

The checksum field present in the CQE is calculated from the IP header
until the end of the packet. When the first ethertype is different than
IPv4/6 (for ex. 802.1Q VLAN) a checksum of the VLAN header/s should be
added. The small header/s checksum calculation will allow us to use
CHECKSUM_COMPLETE instead of CHECKSUM_UNNECESSARY.

Testing bandwidth of one and 8 TCP streams to a single RQ,
LRO and VLAN stripping offloads disabled:
CPU: Intel(R) Xeon(R) CPU E5-2660 v2 @ 2.20GHz
NIC: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]

Before:
+--------------+--------------------+---------------------+----------------------+
| Traffic type | 1 Stream BW [Mbps] | 8 Streams BW [Mbps] |   Checksum offload   |
+--------------+--------------------+---------------------+----------------------+
| Untagged     |          28,247.35 |           24,716.88 | CHECKSUM_COMPLETE    |
| VLAN         |          27,516.69 |           23,752.26 | CHECKSUM_UNNECESSARY |
| QinQ         |           6,961.30 |           20,667.04 | CHECKSUM_UNNECESSARY |
+--------------+--------------------+---------------------+----------------------+

Now:
+--------------+--------------------+---------------------+-------------------+
| Traffic type | 1 Stream BW [Mbps] | 8 Streams BW [Mbps] | Checksum offload  |
+--------------+--------------------+---------------------+-------------------+
| Untagged     |          28,521.28 |           24,926.32 | CHECKSUM_COMPLETE |
| VLAN         |          27,389.37 |           23,715.34 | CHECKSUM_COMPLETE |
| QinQ         |           6,901.77 |           20,845.73 | CHECKSUM_COMPLETE |
+--------------+--------------------+---------------------+-------------------+

No performance degradation observed.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-09 13:28:29 +09:00
Gal Pressman
f24686e878 net/mlx5e: Add VLAN offloads statistics
The following counters are now exposed through ethtool -S:
rx[i]_removed_vlan_packets (per channel)
rx_removed_vlan_packets
tx[i]_added_vlan_packets (per channel)
tx_added_vlan_packets

rx_removed_vlan_packets: The number of packets that had their
outer VLAN header stripped to the CQE by the hardware.
tx_added_vlan_packets: The number of packets that had their
outer VLAN header inserted by the hardware.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-09 13:28:22 +09:00
Gal Pressman
4382c7b92a net/mlx5e: Add 802.1ad VLAN insertion support
Report VLAN insertion support for S-tagged packets and add support by
choosing the correct VLAN type in the WQE.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-09 13:27:35 +09:00
Gal Pressman
7d92d58033 net/mlx5e: Add 802.1ad VLAN filter steering rules
When a user chooses to use 802.1ad VLAN the proper steering rules will
be added to the VLAN flow table (matching the specific S-tag VID).
Due to current hardware limitation, when using 802.1ad, we must disable
C-tag VLAN stripping on the RQs.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-09 13:27:08 +09:00
Gal Pressman
03eda9541f net/mlx5e: Declare bitmap using kernel macro
Replace explicit declaration of bitmap with DECLARE_BITMAP kernel macro.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-09 13:27:02 +09:00
Gal Pressman
355368d530 net/mlx5e: Add rollback on add VLAN failure
When add VLAN rule fails the active vlan bit should be cleared.

Fixes: afb736e933 ("net/mlx5: Ethernet resource handling files")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-09 13:26:56 +09:00
Gal Pressman
2b52a28390 net/mlx5e: Rename VLAN related variables and functions
Rename VLAN related symbols to better reflect the fact that they
are associated to C-tag VLAN.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-09 13:26:32 +09:00
Andrey Konovalov
8f56246291 net: usb: asix: fill null-ptr-deref in asix_suspend
When asix_suspend() is called dev->driver_priv might not have been
assigned a value, so we need to check that it's not NULL.

Similar issue is present in asix_resume(), this patch fixes it as well.

Found by syzkaller.

kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.0-rc4-43422-geccacdd69a8c #400
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Workqueue: usb_hub_wq hub_event
task: ffff88006bb36300 task.stack: ffff88006bba8000
RIP: 0010:asix_suspend+0x76/0xc0 drivers/net/usb/asix_devices.c:629
RSP: 0018:ffff88006bbae718 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff880061ba3b80 RCX: 1ffff1000c34d644
RDX: 0000000000000001 RSI: 0000000000000402 RDI: 0000000000000008
RBP: ffff88006bbae738 R08: 1ffff1000d775cad R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800630a8b40
R13: 0000000000000000 R14: 0000000000000402 R15: ffff880061ba3b80
FS:  0000000000000000(0000) GS:ffff88006c600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff33cf89000 CR3: 0000000061c0a000 CR4: 00000000000006f0
Call Trace:
 usb_suspend_interface drivers/usb/core/driver.c:1209
 usb_suspend_both+0x27f/0x7e0 drivers/usb/core/driver.c:1314
 usb_runtime_suspend+0x41/0x120 drivers/usb/core/driver.c:1852
 __rpm_callback+0x339/0xb60 drivers/base/power/runtime.c:334
 rpm_callback+0x106/0x220 drivers/base/power/runtime.c:461
 rpm_suspend+0x465/0x1980 drivers/base/power/runtime.c:596
 __pm_runtime_suspend+0x11e/0x230 drivers/base/power/runtime.c:1009
 pm_runtime_put_sync_autosuspend ./include/linux/pm_runtime.h:251
 usb_new_device+0xa37/0x1020 drivers/usb/core/hub.c:2487
 hub_port_connect drivers/usb/core/hub.c:4903
 hub_port_connect_change drivers/usb/core/hub.c:5009
 port_event drivers/usb/core/hub.c:5115
 hub_event+0x194d/0x3740 drivers/usb/core/hub.c:5195
 process_one_work+0xc7f/0x1db0 kernel/workqueue.c:2119
 worker_thread+0x221/0x1850 kernel/workqueue.c:2253
 kthread+0x3a1/0x470 kernel/kthread.c:231
 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431
Code: 8d 7c 24 20 48 89 fa 48 c1 ea 03 80 3c 02 00 75 5b 48 b8 00 00
00 00 00 fc ff df 4d 8b 6c 24 20 49 8d 7d 08 48 89 fa 48 c1 ea 03 <80>
3c 02 00 75 34 4d 8b 6d 08 4d 85 ed 74 0b e8 26 2b 51 fd 4c
RIP: asix_suspend+0x76/0xc0 RSP: ffff88006bbae718
---[ end trace dfc4f5649284342c ]---

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-09 09:22:13 +09:00
David S. Miller
1a8e6b48fb Revert "net: usb: asix: fill null-ptr-deref in asix_suspend"
This reverts commit baedf68a06.

There is an updated version of this fix which covers
the problem more thoroughly.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-09 09:21:44 +09:00
Colin Ian King
03e40f1e76 zd1201: remove unused variable framelen
Variable framelen is assigned but never read, hence it is redundant
and can be removed. Cleans up clang warning:

drivers/net/wireless/zydas/zd1201.c:234:3: warning: Value stored
to 'framelen' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:52:57 +02:00
Colin Ian King
9b741b2a31 orinoco_usb: remove redundant pointer dev
The pointer dev is assigned but never read, hence it is redundant
and can be removed. Cleans up clang warning:

drivers/net/wireless/intersil/orinoco/orinoco_usb.c:1468:2: warning:
Value stored to 'dev' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:52:22 +02:00
Colin Ian King
6c6e253113 iwlegacy: remove redundant pointer sta_priv
Pointer sta_priv is assigned but never read, hence it is redundant
and can be removed. Cleans up clang warning:

drivers/net/wireless/intel/iwlegacy/4965-rs.c:2163:2: warning: Value
stored to 'sta_priv' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:50:19 +02:00
Colin Ian King
f80ead1cd5 rtlwifi: remove redundant initialization to cfg_cmd
cfg_cmd is initialized to zero and this value is never read, instead
it is over-written in the start of a do-while loop. Remove the
redundant initialization. Cleans up clang warning:

drivers/net/wireless/realtek/rtlwifi/core.c:1750:22: warning: Value
stored to 'cfg_cmd' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:44:42 +02:00
Colin Ian King
82e730e521 rtlwifi: remove redundant pointer tid_data
tid_data is assigned but never read, hence it is redundant
and can be removed. Cleans up clang warning:

drivers/net/wireless/realtek/rtlwifi/base.c:1581:2: warning: Value
stored to 'tid_data' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:39:25 +02:00
Arnd Bergmann
ac978dc79a rtlwifi: drop unused ppsc->last_wakeup_time
The calculation of ppsc->last_wakeup_time is not y2038-safe, but
the variable is not used at all, so we can simply drop it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:33:06 +02:00
Arnd Bergmann
3c92d5517a rtlwifi: use ktime_get_real_seconds() for suspend time
do_gettimeofday() is deprecated and slower than necessary for the purpose
of reading the seconds. This changes rtl_op_suspend/resume to use
ktime_get_real_seconds() instead, which is simpler and avoids confusion
about whether it is y2038-safe or not.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:33:05 +02:00
Arnd Bergmann
3f2a162fab rtlwifi: fix uninitialized rtlhal->last_suspend_sec time
We set rtlhal->last_suspend_sec to an uninitialized stack variable,
but unfortunately gcc never warned about this, I only found it
while working on another patch. I opened a gcc bug for this.

Presumably the value of rtlhal->last_suspend_sec is not all that
important, but it does get used, so we probably want the
patch backported to stable kernels.

Cc: stable@vger.kernel.org
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82839
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:33:04 +02:00
Ping-Ke Shih
c1b586402c rtlwifi: rtl_pci: Extend recognized interrupt parameters from two to four ISR
8822be checks H2CQ by int_d, so we extend to four ISR.
Also, irq_mask is extended to four.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:30:18 +02:00
Ping-Ke Shih
68929a8380 rtlwifi: rtl_pci: Add ID for 8822BE
When the driver for the RTL8822BE is added, it will need an ID for
further use.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:30:17 +02:00
Ping-Ke Shih
89d3e8abcf rtlwifi: rtl_pci: Add fill_tx_special_desc to issue H2C data, and process TXOK in interrupt.
With the RTL8822BE, an H2C tx queue is added to download FW and special
data. This change implements the support code in rtl_pci.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:30:17 +02:00
Ping-Ke Shih
57869e4ba7 rtlwifi: rtl_pci: Add support for 8822be TX/RX BD
The number of TX/RX BD desc for 8822BE is 512.
The TX/RX BD architecture of 8822BE is the same as 8192EE.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:30:16 +02:00
Larry Finger
5f647f4dfe rtlwifi: rtl_pci: Simplify some code be eliminating extraneous variables
In several places, the code assigns a variable inside an "if" or "case"
block, but uses it only once. The code is simplified by eliminating
the extraneous variable. With this change, one level of indenting is
saved.

This patch does not cause any functional changes in the binary code.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:30:16 +02:00
Larry Finger
ae0122b679 rtlwifi: rtl_pci: Fix formatting problems in pci.c
Checkpatch.pl reports a number of formatting problems in this source
file. None of the changes cause any functional changes in the driver.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:30:15 +02:00
Larry Finger
6bc05d5d8e rtlwifi: rtl_pci: Fix formatting errors in pci.h
Checkpatch.pl reports a number of formatting problems in this header
file. None of the changes cause any functional changes in the driver.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-08 14:30:15 +02:00
Ingo Molnar
8a103df440 Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-08 10:17:15 +01:00
Kristian Evensen
0de0add10e qmi_wwan: Add missing skb_reset_mac_header-call
When we receive a packet on a QMI device in raw IP mode, we should call
skb_reset_mac_header() to ensure that skb->mac_header contains a valid
offset in the packet. While it shouldn't really matter, the packets have
no MAC header and the interface is configured as-such, it seems certain
parts of the network stack expects a "good" value in skb->mac_header.

Without the skb_reset_mac_header() call added in this patch, for example
shaping traffic (using tc) triggers the following oops on the first
received packet:

[  303.642957] skbuff: skb_under_panic: text:8f137918 len:177 put:67 head:8e4b0f00 data:8e4b0eff tail:0x8e4b0fb0 end:0x8e4b1520 dev:wwan0
[  303.655045] Kernel bug detected[#1]:
[  303.658622] CPU: 1 PID: 1002 Comm: logd Not tainted 4.9.58 #0
[  303.664339] task: 8fdf05e0 task.stack: 8f15c000
[  303.668844] $ 0   : 00000000 00000001 0000007a 00000000
[  303.674062] $ 4   : 8149a2fc 8149a2fc 8149ce20 00000000
[  303.679284] $ 8   : 00000030 3878303a 31623465 20303235
[  303.684510] $12   : ded731e3 2626a277 00000000 03bd0000
[  303.689747] $16   : 8ef62b40 00000043 8f137918 804db5fc
[  303.694978] $20   : 00000001 00000004 8fc13800 00000003
[  303.700215] $24   : 00000001 8024ab10
[  303.705442] $28   : 8f15c000 8fc19cf0 00000043 802cc920
[  303.710664] Hi    : 00000000
[  303.713533] Lo    : 74e58000
[  303.716436] epc   : 802cc920 skb_panic+0x58/0x5c
[  303.721046] ra    : 802cc920 skb_panic+0x58/0x5c
[  303.725639] Status: 11007c03 KERNEL EXL IE
[  303.729823] Cause : 50800024 (ExcCode 09)
[  303.733817] PrId  : 0001992f (MIPS 1004Kc)
[  303.737892] Modules linked in: rt2800pci rt2800mmio rt2800lib qcserial ppp_async option usb_wwan rt2x00pci rt2x00mmio rt2x00lib rndis_host qmi_wwan ppp_generic nf_nat_pptp nf_conntrack_pptp nf_conntrack_ipv6 mt76x2i
Process logd (pid: 1002, threadinfo=8f15c000, task=8fdf05e0, tls=77b3eee4)
[  303.962509] Stack : 00000000 80408990 8f137918 000000b1 00000043 8e4b0f00 8e4b0eff 8e4b0fb0
[  303.970871]         8e4b1520 8fec1800 00000043 802cd2a4 6e000045 00000043 00000000 8ef62000
[  303.979219]         8eef5d00 8ef62b40 8fea7300 8f137918 00000000 00000000 0002bb01 793e5664
[  303.987568]         8ef08884 00000001 8fea7300 00000002 8fc19e80 8eef5d00 00000006 00000003
[  303.995934]         00000000 8030ba90 00000003 77ab3fd0 8149dc80 8004d1bc 8f15c000 8f383700
[  304.004324]         ...
[  304.006767] Call Trace:
[  304.009241] [<802cc920>] skb_panic+0x58/0x5c
[  304.013504] [<802cd2a4>] skb_push+0x78/0x90
[  304.017783] [<8f137918>] 0x8f137918
[  304.021269] Code: 00602825  0c02a3b4  24842888 <000c000d> 8c870060  8c8200a0  0007382b  00070336  8c88005c
[  304.031034]
[  304.032805] ---[ end trace b778c482b3f0bda9 ]---
[  304.041384] Kernel panic - not syncing: Fatal exception in interrupt
[  304.051975] Rebooting in 3 seconds..

While the oops is for a 4.9-kernel, I was able to trigger the same oops with
net-next as of yesterday.

Fixes: 32f7adf633 ("net: qmi_wwan: support "raw IP" mode")
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 16:10:30 +09:00
Jay Vosburgh
055db6957e bonding: fix slave stuck in BOND_LINK_FAIL state
The bonding miimon logic has a flaw, in that a failure of the
rtnl_trylock can cause a slave to become permanently stuck in
BOND_LINK_FAIL state.

	The sequence of events to cause this is as follows:

	1) bond_miimon_inspect finds that a slave's link is down, and so
calls bond_propose_link_state, setting slave->new_link_state to
BOND_LINK_FAIL, then sets slave->new_link to BOND_LINK_DOWN and returns
non-zero.

	2) In bond_mii_monitor, the rtnl_trylock fails, and the timer is
rescheduled.  No change is committed.

	3) bond_miimon_inspect is called again, but this time the slave
from step 1 has recovered.  slave->new_link is reset to NOCHANGE, and, as
slave->link was never changed, the switch enters the BOND_LINK_UP case,
and does nothing.  The pending BOND_LINK_FAIL state from step 1 remains
pending, as new_link_state is not reset.

	4) The state from step 3 persists until another slave changes link
state and causes bond_miimon_inspect to return non-zero.  At this point,
the BOND_LINK_FAIL state change on the slave from steps 1-3 is committed,
and the slave will remain stuck in BOND_LINK_FAIL state even though it
is actually link up.

	The remedy for this is to initialize new_link_state on each entry
to bond_miimon_inspect, as is already done with new_link.

Fixes: fb9eb899a6 ("bonding: handle link transition from FAIL to UP correctly")
Reported-by: Alex Sidorenko <alexandre.sidorenko@hpe.com>
Reviewed-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Acked-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 16:07:10 +09:00
Miquel Raynal
118d6298f6 net: mvpp2: add ethtool GOP statistics
Add ethtool statistics support by reading the GOP statistics from the
hardware counters. Also implement a workqueue to gather the statistics
every second or some 32-bit counters could overflow.

Suggested-by: Stefan Chulski <stefanc@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:54:28 +09:00
Christophe JAILLET
e51f37bd3a fsl/fman: Remove a useless 'dev_err()' call
Memory allocation functions already display some informaton in case of
memory allocation failure. There is no need to add an extra 'dev_err' here.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:53:34 +09:00
Christophe JAILLET
25850c31c8 fsl/fman: Add a missing 'of_node_put()' call in an error handling path
If 'of_phy_find_device()' fails, we must undo the previous 'of_node_get()'
call, as done the the following error handling code.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:53:33 +09:00
Christophe JAILLET
336eac4347 fsl/fman: Remove some useless code
There is no need to release explicitly some devm_ allocated resources.
If the 'mac_probe()' probe function fails, they will be released
automatically, as already done in the other error handling paths of
this function.

Also goto '_return_of_get_parent' as in the other error handling paths.
This is useless (priv->fixed_link is NULL at this point), but at least
it is consistent.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:53:33 +09:00
Christophe JAILLET
5adb55c929 fsl/fman: Remove a useless call to 'dev_set_drvdata()'
Commit c6e26ea8c8 ("dpaa_eth: change device used") has removed usage of
'dev_set_drvdata()' in the 'mac_probe() function.

This call should also be axed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:53:33 +09:00
Bjørn Mork
7fd0783372 net: qmi_wwan: fix divide by 0 on bad descriptors
A CDC Ethernet functional descriptor with wMaxSegmentSize = 0 will
cause a divide error in usbnet_probe:

divide error: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.0-rc8-44453-g1fdc1a82c34f #56
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Workqueue: usb_hub_wq hub_event
task: ffff88006bef5c00 task.stack: ffff88006bf60000
RIP: 0010:usbnet_update_max_qlen+0x24d/0x390 drivers/net/usb/usbnet.c:355
RSP: 0018:ffff88006bf67508 EFLAGS: 00010246
RAX: 00000000000163c8 RBX: ffff8800621fce40 RCX: ffff8800621fcf34
RDX: 0000000000000000 RSI: ffffffff837ecb7a RDI: ffff8800621fcf34
RBP: ffff88006bf67520 R08: ffff88006bef5c00 R09: ffffed000c43f881
R10: ffffed000c43f880 R11: ffff8800621fc406 R12: 0000000000000003
R13: ffffffff85c71de0 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88006ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe9c0d6dac CR3: 00000000614f4000 CR4: 00000000000006f0
Call Trace:
 usbnet_probe+0x18b5/0x2790 drivers/net/usb/usbnet.c:1783
 qmi_wwan_probe+0x133/0x220 drivers/net/usb/qmi_wwan.c:1338
 usb_probe_interface+0x324/0x940 drivers/usb/core/driver.c:361
 really_probe drivers/base/dd.c:413
 driver_probe_device+0x522/0x740 drivers/base/dd.c:557

Fix by simply ignoring the bogus descriptor, as it is optional
for QMI devices anyway.

Fixes: 423ce8caab ("net: usb: qmi_wwan: New driver for Huawei QMI based WWAN devices")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:42:43 +09:00
Bjørn Mork
2cb80187ba net: cdc_ether: fix divide by 0 on bad descriptors
Setting dev->hard_mtu to 0 will cause a divide error in
usbnet_probe. Protect against devices with bogus CDC Ethernet
functional descriptors by ignoring a zero wMaxSegmentSize.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:42:01 +09:00
Egil Hjelmeland
ac71a1f944 net: dsa: lan9303: Drop port range check
Now that ds->num_ports is 3, there is no need to check range of "port"
parameter.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:35:01 +09:00
Arnd Bergmann
7dfaa7bc99 bnxt: fix bnxt_hwrm_fw_set_time for y2038
On 32-bit architectures, rtc_time_to_tm() returns incorrect results
in 2038 or later, and do_gettimeofday() is broken for the same reason.

This changes the code to use ktime_get_real_seconds() and time64_to_tm()
instead, both of them are 2038-safe, and we can also get rid of the
CONFIG_RTC_LIB dependency that way.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:33:40 +09:00
Dan Carpenter
42ca728b82 bnxt: delete some unreachable code
We return on the previous line so this "return 0;" statement should just
be deleted.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:30:37 +09:00
Egil Hjelmeland
92f25cafe8 net: dsa: lan9303: Adjust indenting
Remove scripts/checkpatch.pl CHECKs by adjusting indenting.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:29:06 +09:00
Egil Hjelmeland
ec5c91c6ca net: dsa: lan9303: Replace msleep(1) with usleep_range()
Remove scripts/checkpatch.pl WARNING by replacing msleep(1) with usleep_range()

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:29:06 +09:00
Wei Yongjun
d86fd113eb mlxsw: spectrum: Fix error return code in mlxsw_sp_port_create()
Fix to return a negative error code from the VID  create error handling
case instead of 0, as done elsewhere in this function.

Fixes: c57529e1d5 ("mlxsw: spectrum: Replace vPorts with Port-VLAN")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:25:15 +09:00
Wei Yongjun
29130853fe dpaa_eth: fix error return code in dpaa_eth_probe()
Fix to return a negative error code from the dpaa_bp_alloc() error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:24:44 +09:00
Nogah Frankel
3670756fe6 mlxsw: spectrum: Support general qdisc stats
Add support for ndo_setup_tc with enum tc_setup_type value of
TC_SETUP_QDISC_STATS. This call updates the generic qdisc stats from the
cache if the handle ID that is asked for matching the root qdisc ID and
fails otherwise.
Currently doesn't support qlen and rqueues.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Nogah Frankel
861fb8294d mlxsw: spectrum: Support RED xstats
Add support for ndo_setup_tc with enum tc_setup_type value of
TC_SETUP_RED_XSTATS. This call returns the RED qdisc xstats from the cache
if the handle ID that is asked for matching the root qdisc ID and fails
otherwise.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Nogah Frankel
075ab8adaf mlxsw: spectrum: Collect tclass related stats periodically
Add more statistics to be collected from the HW periodically. These stats
are tclass based (beside ECN marked packet, that exist only port based).
They are needed to expose RED qdisc stats and xstats correctly.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Yuval Mintz
0afc1221ff mlxsw: reg: Add ext and tc-cong counter groups
This adds the counter group definitions for 2 new counter groups
which are necessary for gaining ECN & wred counters.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Nogah Frankel
96f17e0776 mlxsw: spectrum: Support RED qdisc offload
Add support for ndo_setup_tc with enum tc_setup_type value of TC_SETUP_RED.
This call sets RED qdisc on a traffic class.
This patch supports RED qdisc only as a root qdisc and set in on the
default tclass. It can be set with or without ECN.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Nogah Frankel
ad53fa06c1 mlxsw: reg: Add cwtp & cwtpm registers
This patch adds 2 new registers:
 - Congestion WRED ECN TClass Profile Register [CWTP]
 - Congestion WRED ECN TClass and Pool Mapping Register [CWTPM]

These registers would later be needed to offload RED-related
functionality to the HW.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Nogah Frankel
8521db4c7e net_sch: cbs: Change TC_SETUP_CBS to TC_SETUP_QDISC_CBS
Change TC_SETUP_CBS to TC_SETUP_QDISC_CBS to match the new convention..

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Nogah Frankel
575ed7d39e net_sch: mqprio: Change TC_SETUP_MQPRIO to TC_SETUP_QDISC_MQPRIO
Change TC_SETUP_MQPRIO to TC_SETUP_QDISC_MQPRIO to match the new
convention.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 12:23:38 +09:00
Hangbin Liu
b5f862180d bonding: discard lowest hash bit for 802.3ad layer3+4
After commit 07f4c90062 ("tcp/dccp: try to not exhaust ip_local_port_range
in connect()"), we will try to use even ports for connect(). Then if an
application (seen clearly with iperf) opens multiple streams to the same
destination IP and port, each stream will be given an even source port.

So the bonding driver's simple xmit_hash_policy based on layer3+4 addressing
will always hash all these streams to the same interface. And the total
throughput will limited to a single slave.

Change the tcp code will impact the whole tcp behavior, only for bonding
usage. Paolo Abeni suggested fix this by changing the bonding code only,
which should be more reasonable, and less impact.

Fix this by discarding the lowest hash bit because it contains little entropy.
After the fix we can re-balance between slaves.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 11:28:43 +09:00
Gustavo A. R. Silva
39a4b86f0d net/mlx5e/core/en_fs: fix pointer dereference after free in mlx5e_execute_l2_action
hn is being kfree'd in mlx5e_del_l2_from_hash and then dereferenced
by accessing hn->ai.addr

Fix this by copying the MAC address into a local variable for its safe use
in all possible execution paths within function mlx5e_execute_l2_action.

Addresses-Coverity-ID: 1417789
Fixes: eeb66cdb68 ("net/mlx5: Separate between E-Switch and MPFS")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 10:41:32 +09:00
Troy Kisky
4ad1ceec05 net: fec: Let fec_ptp have its own interrupt routine
This is better for code locality and should slightly
speed up normal interrupts.

This also allows PPS clock output to start working for
i.mx7. This is because i.mx7 was already using the limit
of 3 interrupts, and needed another.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 10:36:11 +09:00
Marc Zyngier
13c249a94f net: mvpp2: Prevent userspace from changing TX affinities
The mvpp2 driver can't cope at all with the TX affinities being
changed from userspace, and spit an endless stream of

[   91.779920] mvpp2 f4000000.ethernet eth2: wrong cpu on the end of Tx processing
[   91.779930] mvpp2 f4000000.ethernet eth2: wrong cpu on the end of Tx processing
[   91.780402] mvpp2 f4000000.ethernet eth2: wrong cpu on the end of Tx processing
[   91.780406] mvpp2 f4000000.ethernet eth2: wrong cpu on the end of Tx processing
[   91.780415] mvpp2 f4000000.ethernet eth2: wrong cpu on the end of Tx processing
[   91.780418] mvpp2 f4000000.ethernet eth2: wrong cpu on the end of Tx processing

rendering the box completely useless (I've measured around 600k
interrupts/s on a 8040 box) once irqbalance kicks in and start
doing its job.

Obviously, the driver was never designed with this in mind. So let's
work around the problem by preventing userspace from interacting
with these interrupts altogether.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 10:30:34 +09:00
Vitaly Kuznetsov
b5eb819dcb hv_netvsc: hide warnings about uninitialized/missing rndis device
Hyper-V hosts are known to send RNDIS messages even after we halt the
device in rndis_filter_halt_device(). Remove user visible messages
as they are not really useful.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 10:28:54 +09:00
Vitaly Kuznetsov
0cf737808a hv_netvsc: netvsc_teardown_gpadl() split
It was found that in some cases host refuses to teardown GPADL for send/
receive buffers (probably when some work with these buffere is scheduled or
ongoing). Change the teardown logic to be:
1) Send NVSP_MSG1_TYPE_REVOKE_* messages
2) Close the channel
3) Teardown GPADLs.
This seems to work reliably.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 10:28:54 +09:00
Maciej S. Szmigiero
3928ee6485 net: phy: leds: Add support for "link" trigger
Currently, we create a LED trigger for any link speed known to a PHY.
These triggers only fire when their exact link speed had been negotiated
(they aren't cumulative, that is, they don't fire for "their or any higher"
link speed).

What we are missing, however, is a trigger which will fire on any link
speed known to the PHY. Such trigger can then be used for implementing a
poor man's substitute of the "link" LED on boards that lack it.
Let's add it.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 10:24:14 +09:00
Maciej S. Szmigiero
ff198cdb96 net: phy: leds: Refactor "no link" handler into a separate function
Currently, phy_led_trigger_change_speed() is handling a "no link" condition
like it was some kind of an error (using "goto" to a code at the function
end).

However, having no link at PHY is an ordinary operational state, so let's
handle it in an appropriately named separate function so it is more obvious
what the code is doing.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 10:24:14 +09:00
Ingo Molnar
8c5db92a70 Merge branch 'linus' into locking/core, to resolve conflicts
Conflicts:
	include/linux/compiler-clang.h
	include/linux/compiler-gcc.h
	include/linux/compiler-intel.h
	include/uapi/linux/stddef.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-07 10:32:44 +01:00
Stefan Schmidt
7558bd5020 ieee802154: ca8210: use __func__ macro for debug messages
Instead of having the function name hard-coded (it might change and we
forgot to update them in the debug output) we can use __func__ instead
and also shorter the line so we do not need to break it.
Found by checkpatch.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Harry Morris <h.morris@cascoda.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:39:14 +01:00
Stefan Schmidt
dc1281e1f8 ieee802154: ca8210: fix some kernel coding style errors
Remove unneeded parentheses and fix format for pointer style.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Harry Morris <h.morris@cascoda.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:39:14 +01:00
Stefan Schmidt
395cef4233 ieee802154: adf7242: use unsigned int over only unsigned
Bring it in line with the rest of the ieee802154 drivers.
Found by checkpatch.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:39:14 +01:00
Gustavo A. R. Silva
0be7fc7e08 ieee802154: mrf24j40: fix incorrect mask in mrf24j40_stop
It seems that this is a copy/paste error and the proper bit masking is:
BIT_TXNIE | BIT_RXIE

This issue was detected with the help of Coccinelle.

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Fixes: 7d840545e5 ("mrf24j40: replace magic numbers")
Acked-by: Alan Ott <alan@signal11.us>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:27:55 +01:00
Stefan Schmidt
cd3a21b5bd ieee802154: cc2520: switch from BUG_ON() to WARN_ON() on problem
The check is valid but it does not warrant to crash the kernel. A
WARN_ON() is good enough here.
Found by checkpatch.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:27:55 +01:00
Stefan Schmidt
a8ab042c80 ieee802154: cc2520: use __func__ macro for debug messages
Instead of having the function name hard-coded (it might change and we
forgot to update them in the debug output) we can use __func__ instead
and also shorter the line so we do not need to break it.
Found by checkpatch.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:27:55 +01:00
Stefan Schmidt
3ee0275d8d ieee802154: cc2520: fix some kernel coding style errors
Fix some spacing and needed new line.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:27:54 +01:00
Stefan Schmidt
bd910a960f ieee802154: atusb: switch from BUG_ON() to WARN_ON() on problem
The check is valid but it does not warrant to crash the kernel. A
WARN_ON() is good enough here.
Found by checkpatch.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:16:26 +01:00
Stefan Schmidt
2f15034449 ieee802154: atusb: fix some kernel coding style errors
Fix a long line, wrong comment format and misaligned indent.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:16:26 +01:00
Stefan Schmidt
5f0cbf4e50 ieee802154: atusb: use __func__ macro for debug messages
Instead of having the function name hard-coded (it might change and we
forgot to update them in the debug output) we can use __func__ instead
and also shorter the line so we do not need to break it.
Found by checkpatch.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:16:26 +01:00
Stefan Schmidt
909dcf9b16 ieee802154: atusb: switch from uint8_t to u8
Switch top the preferred kernel type naming.
Found by checkpatch.

Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2017-11-06 16:16:26 +01:00
Kalle Valo
b13b3cdfd7 iwlwifi updates
* Some new PCI IDs;
 * A bunch of cleanups;
 * The timers update by Kees;
 * Add more register dump call-sites;
 * A fix for a locking issue in the TX flush code;
 * Actual implementation of the TX flush code for A000;
 * An optimization to drop RX frames during restart to avoid BA issues;
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Merge tag 'iwlwifi-next-for-kalle-2017-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

iwlwifi updates

* Some new PCI IDs;
* A bunch of cleanups;
* The timers update by Kees;
* Add more register dump call-sites;
* A fix for a locking issue in the TX flush code;
* Actual implementation of the TX flush code for A000;
* An optimization to drop RX frames during restart to avoid BA issues;
2017-11-06 12:31:07 +02:00
David S. Miller
488e5b30d3 Merge tag 'mlx5-updates-2017-11-04' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:

====================
mlx5-updates-2017-11-04

This series includes:

From Huy: dscp to priority mapping for Ethernet packet.

===================================================
First six patches enable differentiated services code point (dscp) to
priority mapping for Ethernet packet. Once this feature is
enabled, the packet is routed to the corresponding priority based on its
dscp. User can combine this feature with priority flow control (pfc)
feature to have priority flow control based on the dscp.

Firmware interface:
Mellanox firmware provides two control knobs for this feature:
  QPTS register allow changing the trust state between dscp and
  pcp mode. The default is pcp mode. Once in dscp mode, firmware will
  route the packet based on its dscp value if the dscp field exists.

  QPDPM register allow mapping a specific dscp (0 to 63) to a
  specific priority (0 to 7). By default, all the dscps are mapped to
  priority zero.

Software interface:
This feature is controlled via application priority TLV. IEEE
specification P802.1Qcd/D2.1 defines priority selector id 5 for
application priority TLV. This APP TLV selector defines DSCP to priority
map. This APP TLV can be sent by the switch or can be set locally using
software such as lldptool. In mlx5 drivers, we add the support for net
dcb's getapp and setapp call back. Mlx5 driver only handles the selector
id 5 application entry (dscp application priority application entry).
If user sends multiple dscp to priority APP TLV entries on the same
dscp, the last sent one will take effect. All the previous sent will be
deleted.

The firmware trust state (in QPTS register) is changed based on the
number of dscp to priority application entries. When the first dscp to
priority application entry is added by the user, the trust state is
changed to dscp. When the last dscp to priority application entry is
deleted by the user, the trust state is changed to pcp.

When the port is in DSCP trust state, the transmit queue is selected
based on the dscp of the skb.

When the port is in DSCP trust state and vport inline mode is not NONE,
firmware requires mlx5 driver to copy the IP header to the
wqe ethernet segment inline header if the skb has it.
This is done by changing the transmit queue sq's min inline mode to L3.
Note that the min inline mode of sqs that belong to other features
such as xdpsq, icosq are not modified.
===================================================

Plus to the dscp series, some small misc changes are include as well:

From Inbar, Ethtool msglvl support and some debug prints in DCBNL logic
From Or Gerlitz, Enlarge the NIC TC offload table size
From Rabie, Initialize destination_flow struct to 0
From Feras, Add inner TTC table to IPoIB flow steering
From Tal, Enable CQE based moderation on TX CQ
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:25:02 +09:00
Dirk van der Merwe
0d08709383 nfp: implement ethtool FEC mode settings
Add support in the driver ethtool ops to modify the NFP FEC modes.

The FEC modes can be set for vNIC associated with physical ports or
for MAC representor netdevs.

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:23:27 +09:00
Dirk van der Merwe
b471232e2c nfp: add helpers for FEC support
Implement helpers to determine and modify FEC modes via the NSP.
The NSP advertises FEC capabilities on a per port basis and provides
support for:
* Auto mode selection
* Reed Solomon
* BaseR
* None/Off

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:23:26 +09:00
Dirk van der Merwe
a564d30ec2 nfp: add get/set link settings ndos to representors
Since it is now safe to modify link settings for representors, we can
attach the get/set link settings ndos to it. The get/set link settings
are nfp_port based operations.

If a port becomes invalid, the representor will be removed in the same
way a vnic would be.

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:23:26 +09:00
Dirk van der Merwe
5fa27d59af nfp: resync repr state when port table sync
If the NSP port table has been refreshed, resync the representor state
with the new port information. At the moment, this only entails looking
for invalid ports and killing off representors associated with them.

The repr instance becomes NULL which is safe since the app accessor
function for reprs returns NULL when it cannot access a repr.

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:23:26 +09:00
Dirk van der Merwe
51ccc37d9d nfp: refactor nfp_app_reprs_set
The criteria that reprs cannot be replaced with another new set of reprs
has been removed. This check is not needed since the only use case that
could exercise this at the moment, would be to modify the number of
SRIOV VFs without first disabling them. This case is explicitly
disallowed in any case and subsequent patches in this series
need to be able to replace the running set of reprs.

All cases where the return code used to be checked for the
nfp_app_reprs_set function have been removed.
As stated above, it is not possible for the current code to encounter a
case where reprs exist and need to be replaced.

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:23:26 +09:00
Jakub Kicinski
7717c319d8 nfp: make use of MAC reinit
Recent management FW images can perform full reinit of MAC cores
without requiring a reboot.  When loading the driver check if there
are changes pending and if so call NSP MAC reinit.  Full application
FW reload is still required, and all MACs need to be reinited at the
same time (not only the ones which have been reconfigured, and thus
potentially causing disruption to unrelated netdevs) therefore for
now changing MAC config without reloading the driver still remains
future work.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Tested-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:23:26 +09:00
Jakub Kicinski
4e59532541 nfp: don't depend on compiler constant propagation
Matthias reports:

  nfp_eth_set_bit_config() is marked as __always_inline to allow gcc to
  identify the 'mask' parameter as known to be constant at compile time,
  which is required to use the FIELD_GET() macro.

  The forced inlining does the trick for gcc, but for kernel builds with
  clang it results in undefined symbols:

  drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.o: In function
    `__nfp_eth_set_aneg':

drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c:(.text+0x787):
    undefined reference to `__compiletime_assert_492'

drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c:(.text+0x7b1):
    undefined reference to `__compiletime_assert_496'

  These __compiletime_assert_xyx() calls would have been optimized away
if
  the compiler had seen 'mask' as a constant.

Add a macro to extract the mask and shift and pass those to
nfp_eth_set_bit_config() separately.

Reported-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Tested-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 23:23:26 +09:00
Intiyaz Basha
952484610c liquidio: do not consider packets dropped by network stack as driver Rx dropped
netdev->rx_dropped was including packets dropped by napi_gro_receive.
If a packet is dropped by network stack, it should not be counted under
driver Rx dropped.

Made necessary changes to not include network stack drops under
netdev->rx_dropped.

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:29:44 +09:00
Jakub Kicinski
c6c580d7bc nfp: bpf: move to new BPF program offload infrastructure
Following steps are taken in the driver to offload an XDP program:

XDP_SETUP_PROG:
 * prepare:
   - allocate program state;
   - run verifier (bpf_analyzer());
   - run translation;
 * load:
   - stop old program if needed;
   - load program;
   - enable BPF if not enabled;
 * clean up:
   - free program image.

With new infrastructure the flow will look like this:

BPF_OFFLOAD_VERIFIER_PREP:
  - allocate program state;
BPF_OFFLOAD_TRANSLATE:
   - run translation;
XDP_SETUP_PROG:
   - stop old program if needed;
   - load program;
   - enable BPF if not enabled;
BPF_OFFLOAD_DESTROY:
   - free program image.

Take advantage of the new infrastructure.  Allocation of driver
metadata has to be moved from jit.c to offload.c since it's now
done at a different stage.  Since there is no separate driver
private data for verification step, move temporary nfp_meta
pointer into nfp_prog.  We will now use user space context
offsets.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
9314c442d7 nfp: bpf: move translation prepare to offload.c
struct nfp_prog is currently only used internally by the translator.
This means there is a lot of parameter passing going on, between
the translator and different stages of offload.  Simplify things
by allocating nfp_prog in offload.c already.

We will now use kmalloc() to allocate the program area and only
DMA map it for the time of loading (instead of allocating DMA
coherent memory upfront).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
c1c88eae8a nfp: bpf: move program prepare and free into offload.c
Most of offload/translation prepare logic will be moved to
offload.c.  To help git generate more reasonable diffs
move nfp_prog_prepare() and nfp_prog_free() functions
there as a first step.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
e4a91cd565 nfp: bpf: require seamless reload for program replace
Firmware supports live replacement of programs for quite some
time now.  Remove the software-fallback related logic and
depend on the FW for program replace.  Seamless reload will
become a requirement if maps are present, anyway.

Load and start stages have to be split now, since replace
only needs a load, start has already been done on add.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
9ce7a95632 nfp: bpf: refactor offload logic
We currently create a fake cls_bpf offload object when we want
to offload XDP.  Simplify and clarify the code by moving the
TC/XDP specific logic out of common offload code.  This is easy
now that we don't support legacy TC actions.  We only need the
bpf program and state of the skip_sw flag.

Temporarily set @code to NULL in nfp_net_bpf_offload(), compilers
seem to have trouble recognizing it's always initialized.  Next
patches will eliminate that variable.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
5559eedb78 nfp: bpf: remove unnecessary include of nfp_net.h
BPF offload's main header does not need to include nfp_net.h.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
94508438e8 nfp: bpf: remove the register renumbering leftovers
The register renumbering was removed and will not be coming back
in its old, naive form, given that it would be fundamentally
incompatible with calling functions.  Remove the leftovers.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
012bb8a8b5 nfp: bpf: drop support for cls_bpf with legacy actions
Only support BPF_PROG_TYPE_SCHED_CLS programs in direct
action mode.  This simplifies preparing the offload since
there will now be only one mode of operation for that type
of program.  We need to know the attachment mode type of
cls_bpf programs, because exit codes are interpreted
differently for legacy vs DA mode.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:19 +09:00
Jakub Kicinski
f4e63525ee net: bpf: rename ndo_xdp to ndo_bpf
ndo_xdp is a control path callback for setting up XDP in the
driver.  We can reuse it for other forms of communication
between the eBPF stack and the drivers.  Rename the callback
and associated structures and definitions.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:26:18 +09:00
Gustavo A. R. Silva
9525d69a36 net: plip: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114893
Addresses-Coverity-ID: 114894
Addresses-Coverity-ID: 114895
Addresses-Coverity-ID: 114896
Addresses-Coverity-ID: 114897
Addresses-Coverity-ID: 114898
Addresses-Coverity-ID: 114899
Addresses-Coverity-ID: 114900
Addresses-Coverity-ID: 114901
Addresses-Coverity-ID: 114902
Addresses-Coverity-ID: 114903
Addresses-Coverity-ID: 114904
Addresses-Coverity-ID: 114905
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:19:00 +09:00
Arnd Bergmann
f21506cb42 dpaa_eth: avoid uninitialized variable false-positive warning
We can now build this driver on ARM, so I ran into a randconfig build
warning that presumably had existed on powerpc already.

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c: In function 'sg_fd_to_skb':
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c:1712:18: error: 'skb' may be used uninitialized in this function [-Werror=maybe-uninitialized]

I'm slightly changing the logic here, to make it obvious to the
compiler that 'skb' is always initialized.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-05 22:13:00 +09:00
Tal Gilboa
0088cbbc4b net/mlx5e: Enable CQE based moderation on TX CQ
By using CQE based moderation on TX CQ we can reduce the number of TX
interrupt rate. Besides the benefit of less interrupts, this also
allows the kernel to better utilize TSO. Since TSO has some CPU overhead,
it might not aggregate when CPU is under high stress. By reducing the
interrupt rate and the CPU utilization, we can get better aggregation
and better overall throughput.
The feature is enabled by default and has a private flag in ethtool
for control.

Throughput, interrupt rate and TSO utilization improvements:
(ConnectX-4Lx 40GbE, unidirectional, 1/16 TCP streams, 64B packets)
---------------------------------------------------------
Metric   | Streams | CQE Based | EQE Based | improvement
---------------------------------------------------------
BW       |    1    |  2.4Gb/s  | 2.15Gb/s  |  +11.6%
IR       |    1    |  27Kips   | 50.6Kips  |  -46.7%
TSO Util |    1    |  74.6%    | 71%       |  +5%
BW       |    16   |  29Gb/s   | 25.85Gb/s |  +12.2%
IR       |    16   |  482Kips  | 745Kips   |  -35.3%
TSO Util |    16   |  69.1%    | 49%       |  +41.1%

*BW = Bandwidth, IR = Interrupt rate, ips = interrupt per second.
TSO Util = bytes in TSO sessions / all bytes transferred

Signed-off-by: Tal Gilboa <talgi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:27:15 -07:00
Feras Daoud
458821c72b net/mlx5e: IPoIB, Add inner TTC table to IPoIB flow steering
For supported platforms, add inner TTC flow table to enhanced IPoIB
flow steering.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:27:11 -07:00
Rabie Loulou
4c5009c525 net/mlx5: Initialize destination_flow struct to 0
This is needed in order to enlarge it with more members that will get
value of 0 when not set.

Signed-off-by: Rabie Loulou <rabiel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:27:06 -07:00
Or Gerlitz
21b9c1449d net/mlx5: Enlarge the NIC TC offload table size
The NIC TC offload table size was hard coded to 1k. Change it to be

      min(max NIC RX table size,
	  min(max flow counters, 64k) * num flow groups)

where the max values are read from the firmware and the number of
flow groups is hard-coded as before this change.

We don't know upfront the division of flows to groups (== different masks).
This setup allows each group to be of size up to the where we want to go
(when supported, all offloaded flows use counters). Thus, we don't expect
multiple occurences for a group which in turn would add steering hops.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:27:01 -07:00
Inbar Karmy
5da8bc3eff net/mlx5e: DCBNL, Add debug messages log
Add debug print when changing the configuration of QoS through dcbnl.
Use ethtool -s <devname> msglvl hw on/off to toggle debug messages.

Signed-off-by: Inbar Karmy <inbark@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:26:56 -07:00
Gal Pressman
79c48764e1 net/mlx5e: Add support for ethtool msglvl support
Use ethtool -s <devname> msglvl <type> on/off to toggle debug messages.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Inbar Karmy <inbark@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:26:47 -07:00
Huy Nguyen
fbcb127e89 net/mlx5e: Support DSCP trust state to Ethernet's IP packet on SQ
If the port is in DSCP trust state, packets are placed in the right
priority queue based on the dscp value. This is done by selecting
the transmit queue based on the dscp of the skb.

Until now select_queue honors priority only from the vlan header.
However that is not sufficient in cases where port trust state is DSCP
mode as packet might not even contain vlan header. Therefore if the port
is in dscp trust state and vport's min inline mode is not NONE,
copy the IP header to the eseg's inline header if the skb has it.
This is done by changing the transmit queue sq's min inline mode to L3.
Note that the min inline mode of sqs that belong to other features such
as xdpsq, icosq are not modified.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:26:42 -07:00
Huy Nguyen
2a5e7a1344 net/mlx5e: Add dcbnl dscp to priority support
This patch implements dcbnl hooks to set and delete DSCP to priority map
as defined by the DCB subsystem. Device maintains internal trust state
which needs to be set to DSCP state for performing DSCP to priority mapping.

When the first dscp to priority APP entry is added by the user, the
trust state is changed to dscp.

When the last dscp to priority APP entry is deleted by the user, the
trust state is changed to pcp.

If user sends multiple dscp to priority APP entries on the same dscp,
the last sent one will take effect. All the previous sent will be
deleted.

The dscp to priority APP entries are added and deleted in the net/dcb
APP database using dcb_ieee_setapp/getapp.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:26:31 -07:00
Huy Nguyen
415a64aa8d net/mlx5: QPTS and QPDPM register firmware command support
The QPTS register allows changing the priority trust state between pcp and
dscp. Add support to get/set trust state from device. When the port is
in pcp/dscp trust state, packet is routed by hardware to matching priority
based on its pcp/dscp value respectively.

The QPDPM register allow channing the dscp to priority mapping. Add support
to get/set dscp to priority mapping from device.
Note that to change a dscp mapping, the "e" bit of this dscp structure
must be set in the QPDPM firmware command.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:26:21 -07:00
Huy Nguyen
c02762eb20 net/mlx5: QCAM register firmware command support
The QCAM register provides capability bit for all the QoS registers
using ACCESS_REG command.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-11-04 21:24:14 -07:00
Andrey Konovalov
baedf68a06 net: usb: asix: fill null-ptr-deref in asix_suspend
When asix_suspend() is called dev->driver_priv might not have been
assigned a value, so we need to check that it's not NULL.

Found by syzkaller.

kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.0-rc4-43422-geccacdd69a8c #400
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Workqueue: usb_hub_wq hub_event
task: ffff88006bb36300 task.stack: ffff88006bba8000
RIP: 0010:asix_suspend+0x76/0xc0 drivers/net/usb/asix_devices.c:629
RSP: 0018:ffff88006bbae718 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff880061ba3b80 RCX: 1ffff1000c34d644
RDX: 0000000000000001 RSI: 0000000000000402 RDI: 0000000000000008
RBP: ffff88006bbae738 R08: 1ffff1000d775cad R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800630a8b40
R13: 0000000000000000 R14: 0000000000000402 R15: ffff880061ba3b80
FS:  0000000000000000(0000) GS:ffff88006c600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff33cf89000 CR3: 0000000061c0a000 CR4: 00000000000006f0
Call Trace:
 usb_suspend_interface drivers/usb/core/driver.c:1209
 usb_suspend_both+0x27f/0x7e0 drivers/usb/core/driver.c:1314
 usb_runtime_suspend+0x41/0x120 drivers/usb/core/driver.c:1852
 __rpm_callback+0x339/0xb60 drivers/base/power/runtime.c:334
 rpm_callback+0x106/0x220 drivers/base/power/runtime.c:461
 rpm_suspend+0x465/0x1980 drivers/base/power/runtime.c:596
 __pm_runtime_suspend+0x11e/0x230 drivers/base/power/runtime.c:1009
 pm_runtime_put_sync_autosuspend ./include/linux/pm_runtime.h:251
 usb_new_device+0xa37/0x1020 drivers/usb/core/hub.c:2487
 hub_port_connect drivers/usb/core/hub.c:4903
 hub_port_connect_change drivers/usb/core/hub.c:5009
 port_event drivers/usb/core/hub.c:5115
 hub_event+0x194d/0x3740 drivers/usb/core/hub.c:5195
 process_one_work+0xc7f/0x1db0 kernel/workqueue.c:2119
 worker_thread+0x221/0x1850 kernel/workqueue.c:2253
 kthread+0x3a1/0x470 kernel/kthread.c:231
 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431
Code: 8d 7c 24 20 48 89 fa 48 c1 ea 03 80 3c 02 00 75 5b 48 b8 00 00
00 00 00 fc ff df 4d 8b 6c 24 20 49 8d 7d 08 48 89 fa 48 c1 ea 03 <80>
3c 02 00 75 34 4d 8b 6d 08 4d 85 ed 74 0b e8 26 2b 51 fd 4c
RIP: asix_suspend+0x76/0xc0 RSP: ffff88006bbae718
---[ end trace dfc4f5649284342c ]---

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 22:42:09 +09:00
Ganesh Goudar
24de79e500 cxgb4: update latest firmware version supported
Change t4fw_version.h to update latest firmware version
number to 1.16.63.0.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 22:34:09 +09:00
Wei Yongjun
1ec6e53029 phylink: make local function phylink_phy_change() static
Fixes the following sparse warnings:

drivers/net/phy/phylink.c:570:6: warning:
 symbol 'phylink_phy_change' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 22:31:00 +09:00
David S. Miller
6e300769dc wireless-drivers-next patches for 4.15
Mostly fixes this time, but also few new features.
 
 Major changes:
 
 wil6210
 
 * remove ssid debugfs file
 
 rsi
 
 * add WOWLAN support for suspend, hibernate and shutdown states
 
 ath10k
 
 * add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
   where it's supported (QCA99x0 and QCA4019)
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Merge tag 'wireless-drivers-next-for-davem-2017-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.15

Mostly fixes this time, but also few new features.

Major changes:

wil6210

* remove ssid debugfs file

rsi

* add WOWLAN support for suspend, hibernate and shutdown states

ath10k

* add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
  where it's supported (QCA99x0 and QCA4019)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 18:07:50 +09:00
David S. Miller
2a171788ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Files removed in 'net-next' had their license header updated
in 'net'.  We take the remove from 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:26:51 +09:00
Vijaya Mohan Guvva
bf5345882b liquidio: Fix an issue with multiple switchdev enable disables
Return success if the same dispatch function is being registered for
a given opcode and subcode, there by allow multiple switchdev enable
and disables.

Signed-off-by: Vijaya Mohan Guvva <vijaya.guvva@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:17:29 +09:00
Petr Machata
44b0fff1d8 mlxsw: spectrum_router: Handle down of tunnel underlay
When the bound device of a tunnel device is down, encapsulated packets
are not egressed anymore, but tunnel decap still works. Extend
mlxsw_sp_nexthop_rif_update() to take IFF_UP into consideration when
deciding whether a given next hop should be offloaded.

Because the new logic was added to mlxsw_sp_nexthop_rif_update(), this
fixes the case where a newly-added tunnel has a down bound device, which
would previously be fully offloaded. Now the down state of the bound
device is noted and next hops forwarding to such tunnel are not
offloaded.

In addition to that, notice NETDEV_UP and NETDEV_DOWN of a bound device
to force refresh of tunnel encap route offloads.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:18 +09:00
Petr Machata
89c2b7daba mlxsw: spectrum_ipip: Handle underlay device change
When a bound device of an IP-in-IP tunnel changes, such as through
'ip tunnel change name $name dev $dev', the loopback backing the tunnel
needs to be recreated.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:18 +09:00
Petr Machata
4cf04f3ff4 mlxsw: spectrum: Handle NETDEV_CHANGE on L3 tunnels
Changes to L3 tunnel netdevices (through `ip tunnel change' as well as
`ip link set') lead to NETDEV_CHANGE being generated on the tunnel
device. Because what is relevant for the tunnel in question depends on
the tunnel type, handling of the event is dispatched to the IPIP module
through a newly-added interface mlxsw_sp_ipip_ops.ol_netdev_change().

IPIP tunnels now remember the last set of tunnel parameters in struct
mlxsw_sp_ipip_entry.parms, and use it to figure out what exactly has
changed.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:18 +09:00
Petr Machata
61481f2fce mlxsw: spectrum: Support IPIP underlay VRF migration
When a bound device of a tunnel netdevice changes VRF, the loopback RIF
that backs the tunnel needs to be updated and existing encapsulating
routes need to be refreshed.

Note that several tunnels can share the same bound device, in which case
all the impacted tunnels need to be updated.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:18 +09:00
Petr Machata
af641713e9 mlxsw: spectrum_router: Onload conflicting tunnels
The approach for offloading IP tunnels implemented currently by mlxsw
doesn't allow two tunnels that have the same local IP address in the
same (underlay) VRF. Previously, offloads were introduced on demand as
encap routes were formed. When such a route was created that would cause
offload of a conflicting tunnel, mlxsw_sp_ipip_entry_create() would
detect it and return -EEXIST, which would propagate up and cause FIB
abort.

Now however IPIP entries are created as soon as an offloadable netdevice
is created, and the failure prevents creation of such device.
Furthermore, if the driver is installed at the point where such
conflicting tunnels exist, the failure actually prevents successful
modprobe.

Furthermore, follow-up patches implement handling of NETDEV_CHANGE due
to the local address change. However, NETDEV_CHANGE can't be vetoed. The
failure merely means that the offloads weren't updated, but the change
in Linux configuration is not rolled back. It is thus desirable to have
a robust way of handling these conflicts, which can later be reused for
handling NETDEV_CHANGE as well.

To fix this, when a conflicting tunnel is created, instead of failing,
simply pull the old tunnel to slow path and reject offloading the
new one.

Introduce two functions: mlxsw_sp_ipip_entry_demote_tunnel() and
mlxsw_sp_ipip_demote_tunnel_by_saddr() to handle this. Make them both
public, because they will be useful later on in this patchset.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:18 +09:00
Petr Machata
4526cc8aed mlxsw: spectrum_router: Fix saddr deduction in mlxsw_sp_ipip_entry_create()
When trying to determine whether there are other offloaded tunnels with
the same local address, mlxsw_sp_ipip_entry_create() should look for a
tunnel with matching UL protocol, matching saddr, in the same VRF.
However instead of taking into account the UL protocol of the tunnel
netdevice (which mlxsw_sp_ipip_entry_saddr_matches() then compares to
the UL protocol of inspected IPIP entry), it deduces the UL protocol
from the inspected IPIP entry (and that's compared to itself).

This is currently immaterial, because only one tunnel type is offloaded,
and therefore the UL protocol always matches, but introducing support
for a tunnel with IPv6 underlay would uncover this error.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
0c5f1cd5ba mlxsw: spectrum_router: Generalize __mlxsw_sp_ipip_entry_update_tunnel()
The work that needs to be done to update HW configuration in response to
changes is similar to what __mlxsw_sp_ipip_entry_update_tunnel() already
does, but with a number of twists: each change requires a different
subset of things to happen. Extend the function to support all these
uses, and allow finely-grained configuration of what should happen at
each call through a suite of function arguments.

Publish the updated function to allow use from the spectrum_ipip module.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
65a6121b30 mlxsw: spectrum_router: Extract __mlxsw_sp_ipip_entry_update_tunnel()
The work that's done by mlxsw_sp_netdevice_ipip_ol_vrf_event() is a good
basis for a more versatile function that would take care of all sorts of
tunnel updates requests: __mlxsw_sp_ipip_entry_update_tunnel(). Extract
that function. Factor out a helper mlxsw_sp_ipip_entry_ol_lb_update() as
well.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
7e75af6366 mlxsw: spectrum: Propagate extack for tunnel events
The function mlxsw_sp_rif_create() takes an extack parameter. So far,
for creation of loopback interfaces, NULL was passed. For some events
however the extack can be extracted and passed along. So do that for
NETDEV_CHANGEUPPER handler.

Use the opportunity to update the type of info argument that
mlxsw_sp_netdevice_ipip_ol_event() takes. Follow-up patches will
introduce handling of more changes, and some of them carry an extack as
well, but in an info structure of a different type. Though not strictly
erroneous (the pointer could be cast whichever way), it makes no sense
to pretend the value is always of a certain type, when in fact it isn't.
So change the prototype of the above-mentioned function as well.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
47518ca5d2 mlxsw: spectrum_router: Extract mlxsw_sp_ipip_entry_ol_up_event()
The piece of logic to promote decap route, if any, is useful for generic
tunnel updates, not just for handling of NETDEV_UP events on tunnel
interfaces. Extract it to a separate function.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
6d4de44550 mlxsw: spectrum_router: Make mlxsw_sp_netdevice_ipip_ol_up_event() void
This function only ever returns 0, so don't pretend it returns anything
useful and just make it void.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
a3fe198ecd mlxsw: spectrum_router: Extract mlxsw_sp_ipip_entry_ol_down_event()
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
9fb7bd77d1 mlxsw: spectrum_ipip: Split accessor functions
To implement NETDEV_CHANGE notifications on IP-in-IP tunnels, the
handler needs to figure out what actually changed, to understand how
exactly to update the offloads. It will do so by storing struct
ip_tunnel_parm with previous configuration, and comparing that to the
new version.

To facilitate these comparisons, extract the code that operates on
struct ip_tunnel_parm from the existing accessor functions, and make
those a thin wrapper that extracts tunnel parameters and dispatches.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
474f0ff618 mlxsw: spectrum: Move mlxsw_sp_ipip_netdev_{s, d}addr{, 4}()
These functions ideologically belong to the IPIP module, and some
follow-up work will benefit from their presence there.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
cafdb2a0d4 mlxsw: spectrum_router: Extract mlxsw_sp_netdevice_ipip_can_offload()
Some of the code down the road needs this logic as well.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Petr Machata
796ec7769d mlxsw: spectrum: Rename IPIP-related netdevice handlers
To distinguish between events related to tunnel device itself and its
bound device, rename a number of functions related to handling tunneling
netdevice events to include _ol_ (for "overlay") in the name. That
leaves room in the namespace for underlay-related functions, which would
have _ul_ in the name.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:15:17 +09:00
Linus Torvalds
7ba3ebff9c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Hopefully this is the last batch of networking fixes for 4.14

  Fingers crossed...

   1) Fix stmmac to use the proper sized OF property read, from Bhadram
      Varka.

   2) Fix use after free in net scheduler tc action code, from Cong
      Wang.

   3) Fix SKB control block mangling in tcp_make_synack().

   4) Use proper locking in fib_dump_info(), from Florian Westphal.

   5) Fix IPG encodings in systemport driver, from Florian Fainelli.

   6) Fix division by zero in NV TCP congestion control module, from
      Konstantin Khlebnikov.

   7) Fix use after free in nf_reject_ipv4, from Tejaswi Tanikella"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: systemport: Correct IPG length settings
  tcp: do not mangle skb->cb[] in tcp_make_synack()
  fib: fib_dump_info can no longer use __in_dev_get_rtnl
  stmmac: use of_property_read_u32 instead of read_u8
  net_sched: hold netns refcnt for each action
  net_sched: acquire RTNL in tc_action_net_exit()
  net: vrf: correct FRA_L3MDEV encode type
  tcp_nv: fix division by zero in tcpnv_acked()
  netfilter: nf_reject_ipv4: Fix use-after-free in send_reset
  netfilter: nft_set_hash: disable fast_ops for 2-len keys
2017-11-03 09:09:21 -07:00
Herbert Xu
ab387f0af2 Linux 4.14-rc3
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

Merge 4.14-rc3 in order to pick up the new timer_setup function.
2017-11-03 22:10:18 +08:00
Harsh Jain
2f47d58043 crypto: chelsio - Move DMA un/mapping to chcr from lld cxgb4 driver
Allow chcr to do DMA mapping/Unmapping instead of lld cxgb4.
It moves "Copy AAD to dst buffer" requirement from driver to
firmware.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03 21:50:46 +08:00
Fuyun Liang
439adf885e net: hns3: fix a bug for phy supported feature initialization
This patch fixes a bug for phy supported feature initialization.
Currently, the value of phydev->supported is initialized by kernel.
So it includes many features that we do not support, such as
SUPPORTED_FIBRE and SUPPORTED_BNC. This patch fixes it.

Fixes: 256727d (net: hns3: Add MDIO support to HNS3 Ethernet driver for hip08 SoC)
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:36:50 +09:00
Fuyun Liang
d63671d27c net: hns3: add support for nway_reset
This patch adds nway_reset support for ethtool cmd.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:36:49 +09:00
Fuyun Liang
80cb5f3d97 net: hns3: add support for set_link_ksettings
This patch adds set_link_ksettings support for ethtool cmd.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:36:49 +09:00
Fuyun Liang
3e1a8f10a1 net: hns3: fix a bug in hns3_driv_to_eth_caps
The value of link_modes.advertising and the value of link_modes.supported
is initialized to zero every time in for loop in hns3_driv_to_eth_caps().
But we just want to set specified bit for them. Initialization is
unnecessary. This patch fixes it.

Fixes: 496d03e (net: hns3: Add Ethtool support to HNS3 driver)
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:36:49 +09:00
Fuyun Liang
2b39cabb2a net: hns3: fix for getting advertised_caps in hns3_get_link_ksettings
This patch fixes a bug for ethtool's get_link_ksettings().
The advertising for autoneg is always added to advertised_caps
whether autoneg is enable or disable. This patch fixes it.

Fixes: 496d03e (net: hns3: Add Ethtool support to HNS3 driver)
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:36:49 +09:00
Fuyun Liang
16b5e50147 net: hns3: fix for getting autoneg in hns3_get_link_ksettings
This patch fixes a bug for ethtool's get_link_ksettings().
When phy exists, we should get autoneg from phy rather than from mac.
Because the value of mac.autoneg is invalid when phy exists.

Fixes: 496d03e (net: hns3: Add Ethtool support to HNS3 driver)
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:36:49 +09:00
Michael Chan
b153cbc507 bnxt_en: Fix IRQ coalescing regression.
Recent IRQ coalescing clean up has removed a guard-rail for the max DMA
buffer coalescing value.  This is a 6-bit value and must not be 0.  We
already have a check for 0 but 64 is equivalent to 0 and will cause
non-stop interrupts.  Fix it by adding the proper check.

Fixes: f8503969d2 ("bnxt_en: Refactor and simplify coalescing code.")
Reported-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:33:31 +09:00
Andy Gospodarek
de4a10ef6e bnxt_en: fix typo in bnxt_set_coalesce
Recent refactoring of coalesce settings contained a typo that prevents
receive settings from being set properly.

Fixes: 18775aa8a9 ("bnxt_en: Reorganize the coalescing parameters.")
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 21:33:31 +09:00
Ihab Zhaika
57b36f7fcb iwlwifi: add new cards for a000 series
add four new PCI ID'S for a000 series

Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:10 +02:00
Ihab Zhaika
7cddbef445 iwlwifi: add new cards for 8265 series
add two new PCI ID'S for 8265 series

Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:10 +02:00
Ihab Zhaika
d669fc2d42 iwlwifi: add new cards for 8260 series
add three new PCI ID'S for 8260 series

Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Shahar S Matityahu
364a1ab91d iwlwifi: drop RX frames during hardware restart
In case of a hardware restart the BA session data in HW is lost
so the reorder buffer simply passes the frames to mac80211 as is
as there is no NSSN set. Instead, we will drop these frames
before they reach the reorder buffer. mac80211 drops such frames anyway,
but we shouldn't rely on that. In addition it saves some
processing time

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Kees Cook
8cef5344b5 iwlwifi: mvm: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

The RCU lifetime on baid_data is unclear, so this adds a direct copy of the
rcu_ptr passed to the original callback. It may be possible to improve this
to just use baid_data->mvm->baid_map[baid_data->baid] instead.

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Sara Sharon <sara.sharon@intel.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Luca Coelho
309c4848c0 iwlwifi: mvm: hold mutex when flushing in iwl_mvm_flush_no_vif()
The iwl_mvm_flush_tx_path() function sends a synchronous command to
the firmware.  When doing that, we must hold the mutex.  The
iwl_mvm_flush_no_vif() function was mistakenly not holding the mutex.
Fix it.

Fixes: 6110d9e5bd ("iwlwifi: mvm: Flush non STA TX queues")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Sara Sharon
06195639c6 iwlwifi: mvm: add missing implementation of flush for a000 devices
In the mac flush flow, we should flush all existing queues.
Since FW API for a000 devices is flush per RA-TID, simply
flush all stations with all tids.
From FW perspective, asking to flush a TID that doesn't have
a queue is valid, so we can just set all bits in the TID mask.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Sara Sharon
435d0827fe iwlwifi: mvm: refactor iwl_mvm_flush_no_vif
This function is very indented and hard to read.
Refactor it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Sara Sharon
cb8550e15b iwlwifi: fix multi queue notification for a000 devices
Currently we return early from sync_rx_queues for a000 devices.
This may cause, in case of a non-empty reorder buffer, a warning
later on since the RX queue isn't getting the notification to
empty it.
A better approach would be to send the notification for the default
queue only.
Do this hard coded for now, until we will have the API to enable
multi queue for a000 devices.

Fixes: bc02946964 ("iwlwifi: mvm: disable RX queue notification for a000 devices")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Kirtika Ruchandani
fb12777ab5 iwlwifi: Add more call-sites for pcie reg dumper
Commit a6d24fad00 ("iwlwifi: pcie: dump registers when HW becomes
inaccessible") added a function to dump pcie config registers and
memory mapped registers on a failure. It is currently only accessible
within trans.c. Add it to struct iwl_trans_ops, so that failure cases
in other files can call it.  While there, add a call to this function
from iwl_pcie_load_firmware_chunk in pcie/tx.c, since this is a common
failure case seen on some platforms.

Signed-off-by: Kirtika Ruchandani <kirtika@chromium.org>
[modified the commit message slightly]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Emmanuel Grumbach
4ae827ffc1 iwlwifi: remove host assisted paging
This was used for internal devices that are now deprecated.
All the currently existing devices can do paging without
any help from the host.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Emmanuel Grumbach
fb7eba711d iwlwifi: remove dead code for internal devices only
We had a bunch of code that was relevant for internal
devices only. Those devices are now being depreceated.
Kill all the now unneeded code.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Sara Sharon
14a1f85bdc iwlwifi: mvm: improve latency when there is a reorder timeout
When there is a reorder timeout, we may get to a situation
where we have the timeout latency for all the next 64 frames.
This happens since NSSN is behind for a while, and the driver
won't release the frames, since it is not allowed by NSSN.
As a result the frame is stored in the reorder buffer although
there is no hole, and released 100 ms later.
Add a direct comparison to the reorder buffer head, and release
immediately if possible.

For example:
Frame 0 is missed. We receive frame 1, and store it in the buffer.
After 100 ms, frame 1 is released and reorder buffer head is 2.
We then receive frame 2, with NSSN 0, and store it instead of
releasing it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Emmanuel Grumbach
82d2b9a626 iwlwifi: mvm: rs: remove the ANT C from the toogle antenna logic
We don't plan to have products with 3 antennas in the near
future. All the rest of the code follows the same
assumption as well.
Remove the support for antenna C from rs_toggle_ant.
When trying to toggle from ANT_B, this avoids to go through
ANT_C, discover that it doesn't exist and continue to ANT_A.
In MIMO, this avoids to do ANT_AB -> ANT_BC -> ANT_AC and
back to ANT_AB.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Liad Kaufman
5d39051a32 iwlwifi: mvm: reset seq num after restart
After a FW reset on A000 NICs, the driver doesn't
set the seq number when re-allocating the queues.
This in turn leads to a mismatch between the seq
number the driver thinks each frame has, and the
actual seq num given by the HW.

This especially causes issues with aggregations,
since the driver could be waiting to start an
aggregation and queue traffic from the mac80211
until then, when actually it shouldn't be waiting.

Fixes: 310181ec34 ("iwlwifi: move to TVQM mode")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Sara Sharon
0ec9257b0a iwlwifi: mvm: cleanup references to aggregation count limit
Currently the code is mixing defines and is inconsistent.
When enabling a queue, we usually configure the scheduler
with IWL_FRAME_LIMIT - 64.
When sending to firmware the rate scaling, we limit aggregation
to LINK_QUAL_AGG_FRAME_LIMIT_DEF - 63, due to a scheduler bug.
Given that, clean up the following:
- Fix a stray queue enablement with LINK_QUAL_AGG_FRAME_LIMIT_DEF.
- Change the comparison that tests if queue needs to be reconfigured
  to be compared directly to how it was configured.
  This also saves the redundant round down of the buffer size just
  for the sake of comparing it, making the code more readable.
- Better document gen2 logic

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:07 +02:00
Sara Sharon
b67ce55dbd iwlwifi: mvm: use RS macro instead of duplicating the code
There is a macro for converting TX response rate to a
rate scale value, use it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:07 +02:00
Ganesh Goudar
9a7b96b346 cxgb4vf: define get_fecparam ethtool callback
Add support to new ethtool operation get_fecparam to
fetch FEC parameters.

Original Work by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 15:45:40 +09:00
Ganesh Goudar
36bf994a80 cxgb4: add new T6 pci device id's
Add 0x6086 T6 device id.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 15:45:16 +09:00
Ido Schimmel
28678f07f1 mlxsw: spectrum_router: Update multipath hash parameters upon netevents
Make sure the device and the kernel are performing the multipath hash
according to the same parameters by updating the device whenever the
relevant netevent is generated.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 15:40:41 +09:00
Ido Schimmel
af658b6a0e mlxsw: spectrum_router: Align multipath hash parameters with kernel's
Up until now we used the hardware's defaults for multipath hash
computation. This patch aligns the hardware's multipath parameters with
the kernel's.

For IPv4 packets, the parameters are determined according to the
'fib_multipath_hash_policy' sysctl during module initialization. In case
L3-mode is requested, only the source and destination IP addresses are
used. There is no special handling of ICMP error packets.

In case L4-mode is requested, a 5-tuple is used: source and destination
IP addresses, source and destination ports and IP protocol. Note that
the layer 4 fields are not considered for fragmented packets.

For IPv6 packets, the source and destination IP addresses are used, as
well as the flow label and the next header fields.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 15:40:41 +09:00
Ido Schimmel
e471859b72 mlxsw: reg: Add Router ECMP Configuration Register Version 2
The RECRv2 register is used for setting up the router's ECMP hash
configuration.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 15:40:41 +09:00
Ido Schimmel
ceb8881ddf mlxsw: spectrum_router: Properly name netevent work struct
The struct containing the work item queued from the netevent handler is
named after the only event it is currently used for, which is neighbour
updates.

Use a more appropriate name for the struct, as we are going to use it
for more events.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 15:40:41 +09:00
Ido Schimmel
48fac88526 mlxsw: spectrum_router: Embed netevent notifier block in router struct
We are going to need to respond to netevents notifying us about
multipath hash updates by configuring the device's hash parameters.

Embed the netevent notifier in the router struct so that we could
retrieve it upon notifications and use it to configure the device.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 15:40:41 +09:00
Florian Fainelli
93824c80bf net: systemport: Correct IPG length settings
Due to a documentation mistake, the IPG length was set to 0x12 while it
should have been 12 (decimal). This would affect short packet (64B
typically) performance since the IPG was bigger than necessary.

Fixes: 44a4524c54 ("net: systemport: Add support for SYSTEMPORT Lite")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 14:30:02 +09:00
Wei Yongjun
a882d20cdb cxgb4: fix error return code in cxgb4_set_hash_filter()
Fix to return a negative error code from thecxgb4_alloc_atid()
error handling case instead of 0.

Fixes: 12b276fbf6 ("cxgb4: add support to create hash filters")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-By: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 14:23:54 +09:00
Bhadram Varka
e73b49ebd9 stmmac: use of_property_read_u32 instead of read_u8
Numbers in DT are stored in “cells” which are 32-bits
in size. of_property_read_u8 does not work properly
because of endianness problem.

This causes it to always return 0 with little-endian
architectures.

Fix it by using of_property_read_u32() OF API.

Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 14:15:06 +09:00
Felix Manlunas
25c5f71538 liquidio: bump up driver version to 1.7.0 to match newer NIC firmware
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03 14:09:07 +09:00
Kalle Valo
e226fb5aff Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.15. Major changes:

wil6210

* remove ssid debugfs file
2017-11-02 19:48:25 +02:00
Amitkumar Karwar
e6b3b2ed3d rsi: fix kbuild reported build errors with CONFIG_PM off
Some wowlan related code was outside CONFIG_PM flag which caused these
build errors. They are fixed by moving that code under CONFIG_PM flag.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: ef71ed0608c ("rsi: sdio: Add WOWLAN support for S5 shutdown state")
Fixes: a24e35fcee0 ("rsi: sdio: Add WOWLAN support for S4 hibernate state")
Fixes: e1ced6422a3 ("rsi: sdio: add WOWLAN support for S3 suspend state")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-02 19:38:14 +02:00
Amitkumar Karwar
39f1332c52 rsi: move rsi_sdio_reinit_device() out of CONFIG_PM
This function is generic. It doesn't contain wowlan specific code.
It should not be under CONFIG_PM. This patch resolves compilation
errors observed when CONFIG_PM flag is disabled.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: ef71ed0608c ("rsi: sdio: Add WOWLAN support for S5 shutdown state")
Fixes: a24e35fcee0 ("rsi: sdio: Add WOWLAN support for S4 hibernate state")
Fixes: e1ced6422a3 ("rsi: sdio: add WOWLAN support for S3 suspend state")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-11-02 19:38:14 +02:00
Linus Torvalds
ead751507d License cleanup: add SPDX license identifiers to some files
Many source files in the tree are missing licensing information, which
 makes it harder for compliance tools to determine the correct license.
 
 By default all files without license information are under the default
 license of the kernel, which is GPL version 2.
 
 Update the files which contain no license information with the 'GPL-2.0'
 SPDX license identifier.  The SPDX identifier is a legally binding
 shorthand, which can be used instead of the full boiler plate text.
 
 This patch is based on work done by Thomas Gleixner and Kate Stewart and
 Philippe Ombredanne.
 
 How this work was done:
 
 Patches were generated and checked against linux-4.14-rc6 for a subset of
 the use cases:
  - file had no licensing information it it.
  - file was a */uapi/* one with no licensing information in it,
  - file was a */uapi/* one with existing licensing information,
 
 Further patches will be generated in subsequent months to fix up cases
 where non-standard license headers were used, and references to license
 had to be inferred by heuristics based on keywords.
 
 The analysis to determine which SPDX License Identifier to be applied to
 a file was done in a spreadsheet of side by side results from of the
 output of two independent scanners (ScanCode & Windriver) producing SPDX
 tag:value files created by Philippe Ombredanne.  Philippe prepared the
 base worksheet, and did an initial spot review of a few 1000 files.
 
 The 4.13 kernel was the starting point of the analysis with 60,537 files
 assessed.  Kate Stewart did a file by file comparison of the scanner
 results in the spreadsheet to determine which SPDX license identifier(s)
 to be applied to the file. She confirmed any determination that was not
 immediately clear with lawyers working with the Linux Foundation.
 
 Criteria used to select files for SPDX license identifier tagging was:
  - Files considered eligible had to be source code files.
  - Make and config files were included as candidates if they contained >5
    lines of source
  - File already had some variant of a license header in it (even if <5
    lines).
 
 All documentation files were explicitly excluded.
 
 The following heuristics were used to determine which SPDX license
 identifiers to apply.
 
  - when both scanners couldn't find any license traces, file was
    considered to have no license information in it, and the top level
    COPYING file license applied.
 
    For non */uapi/* files that summary was:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|-------
    GPL-2.0                                              11139
 
    and resulted in the first patch in this series.
 
    If that file was a */uapi/* path one, it was "GPL-2.0 WITH
    Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|-------
    GPL-2.0 WITH Linux-syscall-note                        930
 
    and resulted in the second patch in this series.
 
  - if a file had some form of licensing information in it, and was one
    of the */uapi/* ones, it was denoted with the Linux-syscall-note if
    any GPL family license was found in the file or had no licensing in
    it (per prior point).  Results summary:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|------
    GPL-2.0 WITH Linux-syscall-note                       270
    GPL-2.0+ WITH Linux-syscall-note                      169
    ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
    ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
    LGPL-2.1+ WITH Linux-syscall-note                      15
    GPL-1.0+ WITH Linux-syscall-note                       14
    ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
    LGPL-2.0+ WITH Linux-syscall-note                       4
    LGPL-2.1 WITH Linux-syscall-note                        3
    ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
    ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1
 
    and that resulted in the third patch in this series.
 
  - when the two scanners agreed on the detected license(s), that became
    the concluded license(s).
 
  - when there was disagreement between the two scanners (one detected a
    license but the other didn't, or they both detected different
    licenses) a manual inspection of the file occurred.
 
  - In most cases a manual inspection of the information in the file
    resulted in a clear resolution of the license that should apply (and
    which scanner probably needed to revisit its heuristics).
 
  - When it was not immediately clear, the license identifier was
    confirmed with lawyers working with the Linux Foundation.
 
  - If there was any question as to the appropriate license identifier,
    the file was flagged for further research and to be revisited later
    in time.
 
 In total, over 70 hours of logged manual review was done on the
 spreadsheet to determine the SPDX license identifiers to apply to the
 source files by Kate, Philippe, Thomas and, in some cases, confirmation
 by lawyers working with the Linux Foundation.
 
 Kate also obtained a third independent scan of the 4.13 code base from
 FOSSology, and compared selected files where the other two scanners
 disagreed against that SPDX file, to see if there was new insights.  The
 Windriver scanner is based on an older version of FOSSology in part, so
 they are related.
 
 Thomas did random spot checks in about 500 files from the spreadsheets
 for the uapi headers and agreed with SPDX license identifier in the
 files he inspected. For the non-uapi files Thomas did random spot checks
 in about 15000 files.
 
 In initial set of patches against 4.14-rc6, 3 files were found to have
 copy/paste license identifier errors, and have been fixed to reflect the
 correct identifier.
 
 Additionally Philippe spent 10 hours this week doing a detailed manual
 inspection and review of the 12,461 patched files from the initial patch
 version early this week with:
  - a full scancode scan run, collecting the matched texts, detected
    license ids and scores
  - reviewing anything where there was a license detected (about 500+
    files) to ensure that the applied SPDX license was correct
  - reviewing anything where there was no detection but the patch license
    was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
    SPDX license was correct
 
 This produced a worksheet with 20 files needing minor correction.  This
 worksheet was then exported into 3 different .csv files for the
 different types of files to be modified.
 
 These .csv files were then reviewed by Greg.  Thomas wrote a script to
 parse the csv files and add the proper SPDX tag to the file, in the
 format that the file expected.  This script was further refined by Greg
 based on the output to detect more types of files automatically and to
 distinguish between header and source .c files (which need different
 comment types.)  Finally Greg ran the script using the .csv files to
 generate the patches.
 
 Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
 Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
 Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull initial SPDX identifiers from Greg KH:
 "License cleanup: add SPDX license identifiers to some files

  Many source files in the tree are missing licensing information, which
  makes it harder for compliance tools to determine the correct license.

  By default all files without license information are under the default
  license of the kernel, which is GPL version 2.

  Update the files which contain no license information with the
  'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally
  binding shorthand, which can be used instead of the full boiler plate
  text.

  This patch is based on work done by Thomas Gleixner and Kate Stewart
  and Philippe Ombredanne.

  How this work was done:

  Patches were generated and checked against linux-4.14-rc6 for a subset
  of the use cases:

   - file had no licensing information it it.

   - file was a */uapi/* one with no licensing information in it,

   - file was a */uapi/* one with existing licensing information,

  Further patches will be generated in subsequent months to fix up cases
  where non-standard license headers were used, and references to
  license had to be inferred by heuristics based on keywords.

  The analysis to determine which SPDX License Identifier to be applied
  to a file was done in a spreadsheet of side by side results from of
  the output of two independent scanners (ScanCode & Windriver)
  producing SPDX tag:value files created by Philippe Ombredanne.
  Philippe prepared the base worksheet, and did an initial spot review
  of a few 1000 files.

  The 4.13 kernel was the starting point of the analysis with 60,537
  files assessed. Kate Stewart did a file by file comparison of the
  scanner results in the spreadsheet to determine which SPDX license
  identifier(s) to be applied to the file. She confirmed any
  determination that was not immediately clear with lawyers working with
  the Linux Foundation.

  Criteria used to select files for SPDX license identifier tagging was:

   - Files considered eligible had to be source code files.

   - Make and config files were included as candidates if they contained
     >5 lines of source

   - File already had some variant of a license header in it (even if <5
     lines).

  All documentation files were explicitly excluded.

  The following heuristics were used to determine which SPDX license
  identifiers to apply.

   - when both scanners couldn't find any license traces, file was
     considered to have no license information in it, and the top level
     COPYING file license applied.

     For non */uapi/* files that summary was:

       SPDX license identifier                            # files
       ---------------------------------------------------|-------
       GPL-2.0                                              11139

     and resulted in the first patch in this series.

     If that file was a */uapi/* path one, it was "GPL-2.0 WITH
     Linux-syscall-note" otherwise it was "GPL-2.0". Results of that
     was:

       SPDX license identifier                            # files
       ---------------------------------------------------|-------
       GPL-2.0 WITH Linux-syscall-note                        930

     and resulted in the second patch in this series.

   - if a file had some form of licensing information in it, and was one
     of the */uapi/* ones, it was denoted with the Linux-syscall-note if
     any GPL family license was found in the file or had no licensing in
     it (per prior point). Results summary:

       SPDX license identifier                            # files
       ---------------------------------------------------|------
       GPL-2.0 WITH Linux-syscall-note                       270
       GPL-2.0+ WITH Linux-syscall-note                      169
       ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
       ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
       LGPL-2.1+ WITH Linux-syscall-note                      15
       GPL-1.0+ WITH Linux-syscall-note                       14
       ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
       LGPL-2.0+ WITH Linux-syscall-note                       4
       LGPL-2.1 WITH Linux-syscall-note                        3
       ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
       ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

     and that resulted in the third patch in this series.

   - when the two scanners agreed on the detected license(s), that
     became the concluded license(s).

   - when there was disagreement between the two scanners (one detected
     a license but the other didn't, or they both detected different
     licenses) a manual inspection of the file occurred.

   - In most cases a manual inspection of the information in the file
     resulted in a clear resolution of the license that should apply
     (and which scanner probably needed to revisit its heuristics).

   - When it was not immediately clear, the license identifier was
     confirmed with lawyers working with the Linux Foundation.

   - If there was any question as to the appropriate license identifier,
     the file was flagged for further research and to be revisited later
     in time.

  In total, over 70 hours of logged manual review was done on the
  spreadsheet to determine the SPDX license identifiers to apply to the
  source files by Kate, Philippe, Thomas and, in some cases,
  confirmation by lawyers working with the Linux Foundation.

  Kate also obtained a third independent scan of the 4.13 code base from
  FOSSology, and compared selected files where the other two scanners
  disagreed against that SPDX file, to see if there was new insights.
  The Windriver scanner is based on an older version of FOSSology in
  part, so they are related.

  Thomas did random spot checks in about 500 files from the spreadsheets
  for the uapi headers and agreed with SPDX license identifier in the
  files he inspected. For the non-uapi files Thomas did random spot
  checks in about 15000 files.

  In initial set of patches against 4.14-rc6, 3 files were found to have
  copy/paste license identifier errors, and have been fixed to reflect
  the correct identifier.

  Additionally Philippe spent 10 hours this week doing a detailed manual
  inspection and review of the 12,461 patched files from the initial
  patch version early this week with:

   - a full scancode scan run, collecting the matched texts, detected
     license ids and scores

   - reviewing anything where there was a license detected (about 500+
     files) to ensure that the applied SPDX license was correct

   - reviewing anything where there was no detection but the patch
     license was not GPL-2.0 WITH Linux-syscall-note to ensure that the
     applied SPDX license was correct

  This produced a worksheet with 20 files needing minor correction. This
  worksheet was then exported into 3 different .csv files for the
  different types of files to be modified.

  These .csv files were then reviewed by Greg. Thomas wrote a script to
  parse the csv files and add the proper SPDX tag to the file, in the
  format that the file expected. This script was further refined by Greg
  based on the output to detect more types of files automatically and to
  distinguish between header and source .c files (which need different
  comment types.) Finally Greg ran the script using the .csv files to
  generate the patches.

  Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
  Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
  Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  License cleanup: add SPDX license identifier to uapi header files with a license
  License cleanup: add SPDX license identifier to uapi header files with no license
  License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 10:04:46 -07:00
qumingguang
c6dc521305 net: hns3: hns3:fix a bug about statistic counter in reset process
All member of Struct hdev->hw_stats is initialized to 0 as hdev is
allocated by devm_kzalloc. But in reset process, hdev will not be
allocated again, so need clear hdev->hw_stats in reset process, otherwise
the statistic will be wrong after reset. This patch set all of the
statistic counters to zero after reset.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:36 +09:00
qumingguang
ae064e6123 net: hns3: Fix a misuse to devm_free_irq
we should use free_irq to free the nic irq during the unloading time.
because we use request_irq to apply it when nic up. It will crash if
up net device after reset the port. This patch fixes the issue.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
Lipeng
bb6b94a896 net: hns3: Add reset interface implementation in client
This patch implement the interface of reset notification in hns3_enet,
it will do resetting business which include shutdown nic device,
free and initialize client side resource.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
Lipeng
f8fa222ca5 net: hns3: Add timeout process in hns3_enet
This patch add timeout handler in hns3_enet.c to handle
TX side timeout event, when TX timeout event occur, it will triger
NIC driver into reset process.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
Lipeng
4ed340ab8f net: hns3: Add reset process in hclge_main
This patch adds reset support for PF,it include : global reset, core reset,
IMP reset, PF reset.The core reset will Reset all datapath of all functions
except IMP, MAC and PCI interface. Global reset is equal with the core
reset plus all MAC reset. IMP reset is caused by watchdog timer expiration,
the same with core reset in the reset flow. PF reset will reset whole
physical function.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
Lipeng
466b0c0039 net: hns3: Add support for misc interrupt
This patch adds initialization and deinitialization for misc interrupt.
This interrupt will be used to handle reset message(IRQ).

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
Lipeng
3efb960f05 net: hns3: Refactor the initialization of command queue
There is no necessary to reallocate the descriptor and remap the descriptor
memory in reset process, But there is still some other action exist in both
reset process and initialization process.

To reuse the common interface in reset process and initialization process,
This patch moves out the descriptor allocate and memory maping from
interface cmdq_init.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
qumingguang
cf9cca2dd9 net: hns3: Refactor mac_init function
It needs initialize mdio in initialization process, but reset process
does not reset mdio, so do not initialize mdio in reset process.
This patch move out the mdio configuration function from the mac_init.
So mac_init can be used both in reset process and initialization process.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
Lipeng
7df7dad633 net: hns3: Refactor the mapping of tqp to vport
This patch refactor the mapping of tqp to vport, making the maping function
can be used both in the reset process and initialization process.

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 21:28:35 +09:00
Arnd Bergmann
9691cea91c net: seeq: fix timer conversion
One of the timer conversion patches evidently escaped build testing
until I ran into in on ARM randconfig builds:

drivers/net/ethernet/seeq/ether3.c: In function 'ether3_ledoff':
drivers/net/ethernet/seeq/ether3.c:175:40: error: 'priv' undeclared (first use in this function); did you mean 'pid'?
drivers/net/ethernet/seeq/ether3.c:176:27: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]

This fixes the two small typos that caused the problems.

Fixes: 6fd9c53f71 ("net: seeq: Convert timers to use timer_setup()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:33:12 +09:00
Jakub Kicinski
18f7619179 nfp: improve defines for constants in ethtool
We split rvector stats into two categories - per queue and
stats which are added up into one total counter.  Improve
the defines denoting their number.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
Jakub Kicinski
16f50cda06 nfp: use a counter instead of log message for allocation failures
Add a counter incremented when allocation of replacement
RX page fails.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
Jakub Kicinski
790a399171 nfp: switch to dev_alloc_page()
Use the dev_alloc_page() networking helper to allocate pages
for RX packets.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
Jakub Kicinski
43b45245e5 nfp: bpf: fall back to core NIC app if BPF not selected
If kernel config does not include BPF just replace the BPF
app handler with the handler for basic NIC.  The BPF app
will now be built only if BPF infrastructure is selected
in kernel config.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
Jakub Kicinski
2c4197a041 nfp: reorganize the app table
The app table is an unordered array right now.  We have to search
apps by ID.  It also makes it harder to fall back to core NIC if
advanced functions are not compiled into the kernel (e.g. eBPF).
Make the table keyed by app id.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
Jakub Kicinski
f449657f83 nfp: bpf: reject TC offload if XDP loaded
Recent TC changes dropped the check protecting us from trying
to offload a TC program if XDP programs are already loaded.

Fixes: 90d97315b3 ("nfp: bpf: Convert ndo_setup_tc offloads to block callbacks")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
John Hurley
dc4646a950 nfp: flower: vxlan - ensure no sleep in atomic context
Functions called by the netevent notifier must be in atomic context.
Change the mutex to spinlock and ensure mem allocations are done with the
atomic flag.
Also, remove unnecessary locking after notifiers are unregistered.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
John Hurley
2df7b2d206 nfp: flower: app should use struct nfp_repr
Ensure priv netdev data in flower app is cast to nfp_repr and not nfp_net
as in other apps.

Fixes: 363fc53b8b ("nfp: flower: Convert ndo_setup_tc offloads to block callbacks")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 20:27:11 +09:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Vijaya Mohan Guvva
e20f469660 liquidio: synchronize VF representor names with NIC firmware
LiquidIO firmware supports a vswitch that needs to know the names of the
VF representors in the host to maintain compatibility for direct
programming using external Openflow agents.  So, for each VF representor,
send its name to the firmware when it gets registered and when its name
changes.

Signed-off-by: Vijaya Mohan Guvva <vijaya.guvva@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 17:04:06 +09:00
Florian Fainelli
3ded76a8ff net: systemport: Only inspect valid switch port & queues
Hesoteric board configurations where port 0 is not available would still
make SYSTEMPORT inspect the switch port 0, queue 0, which, not being
enabled, would cause transmit timeouts over time. Just ignore those
unconfigured rings instead.

Fixes: 84ff33eeb23d ("net: systemport: Establish DSA network device queue mapping")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 16:49:28 +09:00
Jiong Wang
254ef4d746 nfp: bpf: support [BPF_ALU | BPF_ALU64] | BPF_NEG
This patch supports BPF_NEG under both BPF_ALU64 and BPF_ALU. LLVM recently
starts to generate it.

NOTE: BPF_NEG takes single operand which is an register and serve as both
input and output.

Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-02 16:47:30 +09:00