Commit Graph

768046 Commits

Author SHA1 Message Date
Linus Walleij
d85458256a net: phy: realtek: Support RTL8366RB variant
The RTL8366RB is an ASIC with five internal PHYs for
LAN0..LAN3 and WAN. The PHYs are spawn off the main
device so they can be handled in a distributed manner
by the Realtek PHY driver. All that is really needed
is the power save feature enablement and letting the
PHY driver core pick up the IRQ from the switch chip.

Cc: Antti Seppälä <a.seppala@gmail.com>
Cc: Roman Yeryomin <roman@advem.lv>
Cc: Colin Leitner <colin.leitner@googlemail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 13:43:38 +09:00
Heiner Kallweit
07df5bd874 r8169: power down chip in probe
The removed code would be called in two situations:
1. interface is brought up never or >10s after driver load
2. after close()

Case 1 we can handle cleaner by ensuring chip is powered down when
leaving probe(). open() callback will power up the chip.

In case 2 we call rtl_pll_power_down() twice currently, from the
close() callback and 10s later when entering runtime-suspend.
This is avoided by this patch.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 10:03:35 +09:00
David S. Miller
fd3d96ae49 Merge branch 'HWMON-support-for-SFP-modules'
Andrew Lunn says:

====================
HWMON support for SFP modules

This patchset adds HWMON support to SFP modules. The two patches add
some attributes for temperature and power sensors which are currently
missing from the hwmon core. The third patch adds a helper for
filtering out characters in hwmon names which are invalid. The last
patch then extends the core SFP code to export the sensors found in
SFP modules.

This code has been tested with two SFP modules:

module OEM SFP-7000-85 rev 11.0 sn M1512220075 dc 160221
module FINISAR CORP. FTLF8524E2GNL rev A sn PW40MNN dc 160725

The anonymous module uses external calibration, while the FINISAR uses
internal calibration. Thus both code paths have been tested.

Due to the cross subsystem nature of these patches, as discussed with
the RFC, it is hoped Guenter Roeck will ACK the patches, and then Dave
Miller will merge them all via net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 10:02:11 +09:00
Andrew Lunn
1323061a01 net: phy: sfp: Add HWMON support for module sensors
SFP modules can contain a number of sensors. The EEPROM also contains
recommended alarm and critical values for each sensor, and indications
of if these have been exceeded. Export this information via
HWMON. Currently temperature, VCC, bias current, transmit power, and
possibly receiver power is supported.

The sensors in the modules can either return calibrate or uncalibrated
values. Uncalibrated values need to be manipulated, using coefficients
provided in the SFP EEPROM. Uncalibrated receive power values require
floating point maths in order to calibrate them. Performing this in
the kernel is hard. So if the SFP module indicates it uses
uncalibrated values, RX power is not made available.

With this hwmon device, it is possible to view the sensor values using
lm-sensors programs:

in0:          +3.29 V  (crit min =  +2.90 V, min =  +3.00 V)
                       (max =  +3.60 V, crit max =  +3.70 V)
temp1:        +33.0°C  (low  =  -5.0°C, high = +80.0°C)
                       (crit low = -10.0°C, crit = +85.0°C)
power1:      1000.00 nW (max = 794.00 uW, min =  50.00 uW)  ALARM (LCRIT)
                       (lcrit =  40.00 uW, crit = 1000.00 uW)
curr1:        +0.00 A  (crit min =  +0.00 A, min =  +0.00 A)  ALARM (LCRIT, MIN)
                       (max =  +0.01 A, crit max =  +0.01 A)

The scaling sensors performs on the bias current is not particularly
good. The raw values are more useful:

curr1:
  curr1_input: 0.000
  curr1_min: 0.002
  curr1_max: 0.010
  curr1_lcrit: 0.000
  curr1_crit: 0.011
  curr1_min_alarm: 1.000
  curr1_max_alarm: 0.000
  curr1_lcrit_alarm: 1.000
  curr1_crit_alarm: 0.000

In order to keep the I2C overhead to a minimum, the constant values,
such as limits and calibration coefficients are read once at module
insertion time. Thus only reading *_input and *_alarm properties
requires i2c read operations.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 10:02:02 +09:00
Andrew Lunn
dcb5d0fcaa hwmon: Add helper to tell if a char is invalid in a name
HWMON device names are not allowed to contain "-* \t\n". Add a helper
which will return true if passed an invalid character. It can be used
to massage a string into a hwmon compatible name by replacing invalid
characters with '_'.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 10:01:46 +09:00
Andrew Lunn
aa7f29b07c hwmon: Add support for power min, lcrit, min_alarm and lcrit_alarm
Some sensors support reporting minimal and lower critical power, as
well as alarms when these thresholds are reached. Add support for
these attributes to the hwmon core.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 10:01:46 +09:00
Andrew Lunn
2fe31e4312 hwmon: Add missing HWMON_T_LCRIT_ALARM define
The enum hwmon_temp_lcrit_alarm exists, but the BIT definition is
missing.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 10:01:46 +09:00
David S. Miller
7c1fbfa7b2 Merge branch 'r8169-add-phylib-support'
Heiner Kallweit says:

====================
r8169: add phylib support

Now that all the basic refactoring has been done we can add phylib
support. This patch series was successfully tested on:
RTL8168h
RTL8168evl
RTL8169sb

Changes in v2:
- return error in mdio ops if phyaddr > 0
- advertise pause modes
- added reviewed-by for several patches

Changes in v3:
- return ENODEV for unused phy addresses in mdio ops
- remove unneeded PHY suspend in patch 2
- use recently added phy_speed_down and phy_speed_up in patch 7
- other minor changes based on review comments
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:40 +09:00
Heiner Kallweit
29a12b4953 r8169: don't read chip phy status register
Instead of accessing the PHYstatus register we can use the information
phylib stores in the phy_device structure.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
f7ffa9ae2b r8169: remove mii_if_info member from struct rtl8169_private
The only remaining usage of the struct mii_if_info member is to store the
information whether the chip is GMII-capable. So we can replace it with
a simple flag.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
a2965f12fd r8169: remove rtl8169_set_speed_xmii
We can remove rtl8169_set_speed_xmii() now that phylib handles all this.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
5b7ad4b75d r8169: use phy_speed_down / phy_speed_up
Use new phylib functions phy_speed_down() and phy_speed_up().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
69b3c59fe2 r8169: use phy_mii_ioctl
Switch to using phy_mii_ioctl().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
dd84957eee r8169: use phy_ethtool_nway_reset
Switch to using phy_ethtool_nway_reset().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
4577243392 r8169: use phy_ethtool_(g|s)et_link_ksettings
Use phy_ethtool_(g|s)et_link_ksettings() for the respective ethtool_ops
callbacks.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
f75222bce9 r8169: replace open-coded PHY soft reset with genphy_soft_reset
Use genphy_soft_reset() instead of open-coding a PHY soft reset. We have
to do an explicit PHY soft reset because some chips use the genphy driver
which uses a no-op as soft_reset callback.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
242cd9b586 r8169: use phy_resume/phy_suspend
Use phy_resume() / phy_suspend() instead of open coding this functionality.
The chip version specific differences are handled by the respective PHY
drivers.

The call to r8168_phy_power_down() in r8168_pll_power_down() can be
removed because phylib takes care now. The relevant scenarios are:
- rtl8169_close(): phy_disconnect() powers down PHY
- suspend: mdio_bus_phy_suspend() takes care
- runtime-suspend: WoL is active, don't suspend PHY
- rtl_shutdown(): no need to power down PHY

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Heiner Kallweit
f1e911d5d0 r8169: add basic phylib support
Add basic phylib support to r8169. All now unneeded old PHY handling code
will be removed in subsequent patches.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18 09:46:32 +09:00
Rick Farrington
fcaccc8293 liquidio: correct error msg text when removing VLAN ID
Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 22:55:29 -07:00
David S. Miller
ccdb51717b net: Fix GRO_HASH_BUCKETS assertion.
FIELD_SIZEOF() is in bytes, but we want bits.

Fixes: d9f37d01e2 ("net: convert gro_count to bitmask")
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 17:02:04 -07:00
Toke Høiland-Jørgensen
301f935be9 sch_cake: Fix tin order when set through skb->priority
In diffserv mode, CAKE stores tins in a different order internally than
the logical order exposed to userspace. The order remapping was missing
in the handling of 'tc filter' priority mappings through skb->priority,
resulting in bulk and best effort mappings being reversed relative to
how they are displayed.

Fix this by adding the missing mapping when reading skb->priority.

Fixes: 83f8fd69af ("sch_cake: Add DiffServ handling")
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 14:47:45 -07:00
Surendra Mobiya
1eb94d441f cxgb4: collect ASIC LA dumps from ULP TX
Signed-off-by: Surendra Mobiya <surendra@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 14:46:16 -07:00
Jiri Pirko
1222d15a01 mlxsw: spectrum: Expose counters for various packet sizes
Expose counters ASIC has in the group of RFC 2819 counters that count
number of packets within specific size range.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 14:04:42 -07:00
Rick Farrington
ac13d6d8ea liquidio: fix hang when re-binding VF host drv after running DPDK VF driver
When configuring SLI_PKTn_OUTPUT_CONTROL, VF driver was assuming that IPTR
mode was disabled by reset, which was not true.  Since DPDK driver had
set IPTR mode previously, the VF driver (which uses buf-ptr-only mode) was
not properly handling DROQ packets (i.e. it saw zero-length packets).

This represented an invalid hardware configuration which the driver could
not handle.

Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 14:02:00 -07:00
Alexander Sverdlin
7e2bc7fb65 net: cavium: Drop dependency of NET_VENDOR_CAVIUM on PCI
Octeon Ethernet drivers work perfectly without PCI.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:44:36 -07:00
Antoine Tenart
495083807f net: mscc: simplify retrieving the tag type from the frame header
The tag type in the frame extraction header is only a bit wide. There's
no need to use GENMASK when retrieving the information. This patch
simplify the code by dropping GENMASK and using BIT instead.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:43:31 -07:00
Ganesh Goudar
bc1b50309c cxgb4: do not return DUPLEX_UNKNOWN when link is down
We were returning DUPLEX_UNKNOWN in get_link_ksettings() when
the link was down.  Unfortunately, this causes a problem when
"ethtool -s autoneg on" is issued for a link which is down because
the ethtool code first reads the settings and then reapplies them
with only the changes provided on the command line. Which results
in us diving into set_link_ksettings() with DUPLEX_UNKNOWN which is
not DUPLEX_FULL, so set_link_ksettings() throws an -EINVAL error.
do not return DUPLEX_UNKNOWN to fix the issue.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:43:10 -07:00
Li RongQing
d9f37d01e2 net: convert gro_count to bitmask
gro_hash size is 192 bytes, and uses 3 cache lines, if there is few
flows, gro_hash may be not fully used, so it is unnecessary to iterate
all gro_hash in napi_gro_flush(), to occupy unnecessary cacheline.

convert gro_count to a bitmask, and rename it as gro_bitmask, each bit
represents a element of gro_hash, only flush a gro_hash element if the
related bit is set, to speed up napi_gro_flush().

and update gro_bitmask only if it will be changed, to reduce cache
update

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Cc: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:40:54 -07:00
YueHaibing
48559af345 bnxt_en: remove redundant debug register dma mem allocation
hwrm_dbg_resp_addr and hwrm_dbg_resp_dma_addr are never used
and can be removed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:37:38 -07:00
Helge Deller
6e85d7a8bc liquidio: Use %pad printk format for dma_addr_t values
Use the existing %pad printk format to print dma_addr_t values.
This avoids the following warnings when compiling on the parisc platform:

warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]

Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:36:49 -07:00
Heiner Kallweit
04ecac8c12 net: phy: realtek: add missing entry for RTL8211C to mdio_device_id table
Add missing entry for RTL8211C to mdio_device_id table.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Fixes: cf87915cb9 ("net: phy: realtek: add support for RTL8211C")
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:36:16 -07:00
Gustavo A. R. Silva
ae85467ccc net: usb: hso: use swap macro in hso_kick_transmit
Make use of the swap macro and remove unnecessary variable *temp*.
This makes the code easier to read and maintain. Also, slightly
refactor some code due to the removal of *temp*.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:35:47 -07:00
David S. Miller
2a6deb6a57 Merge branch 'phy-helpers'
Heiner Kallweit says:

====================
net: phy: add functionality to speed down PHY when waiting for WoL packet

Some network drivers include functionality to speed down the PHY when
suspending and just waiting for a WoL packet because this saves energy.

This patch is based on our recent discussion about factoring out this
functionality to phylib. First user will be the r8169 driver.

v2:
- add warning comment to phy_speed_down regarding usage of sync = false
- remove sync parameter from phy_speed_up
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:34:47 -07:00
Heiner Kallweit
2b9672ddb6 net: phy: add phy_speed_down and phy_speed_up
Some network drivers include functionality to speed down the PHY when
suspending and just waiting for a WoL packet because this saves energy.
This functionality is quite generic, therefore let's factor it out to
phylib.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:34:47 -07:00
Heiner Kallweit
7629958070 net: phy: add helper phy_config_aneg
This functionality will also be needed in subsequent patches of this
series, therefore factor it out to a helper.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:34:47 -07:00
Dave Watson
7f657d5bf5 selftests: tls: add selftests for TLS sockets
Add selftests for tls socket.  Tests various iov and message options,
poll blocking and nonblocking behavior, partial message sends / receives,
 and control message data.  Tests should pass regardless of if TLS
is enabled in the kernel or not, and print a warning message if not.

Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 13:33:10 -07:00
David S. Miller
568a74d491 Merge branch 'docs-Fix-failover-build-warnings'
Tobin C. Harding says:

====================
docs: Fix failover build warnings

This is my first patch set to net-next.  Please shout loud and clear if
I've botched anything.

Recently failover and net_failover modules were added to the mainline.
Documentation was included in rst format but they were not added to the
toctree in `networking/index.rst`.  Also building docs for net_failover
is currently emitting a few warnings.

Patch 1 adds failover and net_failover to the index toctree
Patch 2 fixes the build warnings for net_failover

I haven't been super active on netdev list so if there is some reason I
missed why these files are not in the index please do say so.

Has there been any discussion on preferred order for the toctree index
list?  I just added them to the bottom of the list.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:23:54 -07:00
Tobin C. Harding
2880984970 docs: networking: Fix failover build warnings
Currently building the net_failover docs causes a bunch of warnings to
be emitted.  These warnings are all related to indentation and correctly
highlight missing '::' (for code sections).  It looks, from other rst
files in Documentation, that the first column should be indented 2
spaces.

Add '::' before code snippets and indent all snippets uniformly starting
with 2 spaces.

Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:23:54 -07:00
Tobin C. Harding
d95768d3cc docs: networking: Add failover docs to index
Currently we have rst format docs for the failover and net_failover
modules however these docs are not linked to within the index.

Add `failover` and `net_failover` to the networking documentation index.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:23:53 -07:00
David S. Miller
35edb56e94 Merge branch 'hns3-next'
Salil Mehta says:

====================
Bug fixes and some minor changes to HNS3 driver

This patch-set presents some fixes and minor changes to the HNS3 Ethernet Driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:45 -07:00
Fuyun Liang
5550aa4d47 net: hns3: Fix comments for hclge_get_ring_chain_from_mbx
Actually, hclge_get_ring_chain_from_mbx is used to get ring type, tqp id,
and int_gl index from mailbox message. So the comments is incorrect. This
patch fixes it.

Fixes: dde1a86e93 ("net: hns3: Add mailbox support to PF driver")
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:45 -07:00
Fuyun Liang
cf4103c699 net: hns3: Fix for using wrong mask and shift in hclge_get_ring_chain_from_mbx
HCLGE_INT_GL_IDX_M and HCLGE_INT_GL_IDX_S are used to set fireware
cmd. When getting int_gl value from mailbox message, we should use
HNAE3_RING_GL_IDX_M and HNAE3_RING_GL_IDX_S.

Fixes: 79eee41085 ("net: hns3: add int_gl_idx setup for VF")
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:45 -07:00
Yunsheng Lin
82b5321460 net: hns3: Fix for reset_level default assignment probelm
handle->reset_level is assigned to HNAE3_NONE_RESET when client is
initialized, if a tx timeout happens right after initialization,
then handle->reset_level is not resetted to HNAE3_FUNC_RESET in
hclge_reset_event, which will cause reset event not properly
handled problem.

This patch fixes it by setting handle->reset_level properly when
client is initialized.

Fixes: 6d4c3981a8 ("net: hns3: Changes to make enet watchdog timeout func common for PF/VF")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:44 -07:00
Huazhong Tan
d62eccaed4 net: hns3: remove unnecessary ring configuration operation while resetting
The configuration of the ring will be used to reinitialize the
ring after the hardware reset is completed. So we should not
release and reacquire this configuration during reset.

Fixes: bb6b94a896 ("net: hns3: Add reset interface implementation in client")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:44 -07:00
Huazhong Tan
6b1385cc25 net: hns3: Fix return value error in hns3_reset_notify_down_enet
When doing reset, netdev has not been brought up is not an error,
it means that we do not need do the stop operation, so just return
zero.

Fixes: 76ad4f0ee7 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:44 -07:00
Huazhong Tan
9ca8d1a73c net: hns3: Correct reset event status register
According to hardware's description, driver should get reset event
from VECTOR0_PF_OTHER_INT_ST(0x20800) instead of
VECTOR0_PF_OTHER_INT_SRC(0x20700).

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:44 -07:00
Huazhong Tan
9de0b86f64 net: hns3: Prevent to request reset frequently
Netdevice reset should not be requested frequently, a new one
must wait a moment since there may be some work not completed.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:44 -07:00
Huazhong Tan
6d4fab3953 net: hns3: Reset net device with rtnl_lock
Since current locking was not covering certain code where
netdev was being accessed or manipulated, this patch fixes
it.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:44 -07:00
Huazhong Tan
1b3725781a net: hns3: Modify the order of initializing command queue register
According to hardware's description, the head pointer register should
be written before the tail pointer register while doing command queue
initialization.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 11:16:44 -07:00
David S. Miller
aea06eb276 Merge branch 'TLS-offload-rx-netdev-and-mlx5'
Boris Pismenny says:

====================
TLS offload rx, netdev & mlx5

The following series provides TLS RX inline crypto offload.

v5->v4:
    - Remove the Kconfig to mutually exclude both IPsec and TLS

v4->v3:
    - Remove the iov revert for zero copy send flow

v2->v3:
    - Fix typo
    - Adjust cover letter
    - Fix bug in zero copy flows
    - Use network byte order for the record number in resync
    - Adjust the sequence provided in resync

v1->v2:
    - Fix bisectability problems due to variable name changes
    - Fix potential uninitialized return value

This series completes the generic infrastructure to offload TLS crypto to
a network devices. It enables the kernel TLS socket to skip decryption and
authentication operations for SKBs marked as decrypted on the receive
side of the data path. Leaving those computationally expensive operations
to the NIC.

This infrastructure doesn't require a TCP offload engine. Instead, the
NIC decrypts a packet's payload if the packet contains the expected TCP
sequence number. The TLS record authentication tag remains unmodified
regardless of decryption. If the packet is decrypted successfully and it
contains an authentication tag, then the authentication check has passed.
Otherwise, if the authentication fails, then the packet is provided
unmodified and the KTLS layer is responsible for handling it.
Out-Of-Order TCP packets are provided unmodified. As a result,
in the slow path some of the SKBs are decrypted while others remain as
ciphertext.

The GRO and TCP layers must not coalesce decrypted and non-decrypted SKBs.
At the worst case a received TLS record consists of both plaintext
and ciphertext packets. These partially decrypted records must be
reencrypted, only to be decrypted.

The notable differences between SW KTLS and NIC offloaded TLS
implementations are as follows:
1. Partial decryption - Software must handle the case of a TLS record
that was only partially decrypted by HW. This can happen due to packet
reordering.
2. Resynchronization - tls_read_size calls the device driver to
resynchronize HW whenever it lost track of the TLS record framing in
the TCP stream.

The infrastructure should be extendable to support various NIC offload
implementations.  However it is currently written with the
implementation below in mind:
The NIC identifies packets that should be offloaded according to
the 5-tuple and the TCP sequence number. If these match and the
packet is decrypted and authenticated successfully, then a syndrome
is provided to software. Otherwise, the packet is unmodified.
Decrypted and non-decrypted packets aren't coalesced by the network stack,
and the KTLS layer decrypts and authenticates partially decrypted records.
The NIC provides an indication whenever a resync is required. The resync
operation is triggered by the KTLS layer while parsing TLS record headers.

Finally, we measure the performance obtained by running single stream
iperf with two Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz machines connected
back-to-back with Innova TLS (40Gbps) NICs. We compare TCP (upper bound)
and KTLS-Offload running both in Tx and Rx. The results show that the
performance of offload is comparable to TCP.

                          | Bandwidth (Gbps) | CPU Tx (%) | CPU rx (%)
TCP                       | 28.8             | 5          | 12
KTLS-Offload-Tx-Rx 	  | 28.6	     | 7          | 14

Paper: https://netdevconf.org/2.2/papers/pismenny-tlscrypto-talk.pdf
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-16 00:13:40 -07:00