Commit Graph

85675 Commits

Author SHA1 Message Date
Pablo Neira Ayuso
32f8c4093a net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_*
Rename from TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_* and
remove temporary tcf_block_binder_type alias.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:38:50 -07:00
Pablo Neira Ayuso
9c0e189ec9 net: flow_offload: rename TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND
Rename from TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND and remove
temporary tc_block_command alias.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:38:50 -07:00
Pablo Neira Ayuso
4e95bc268b net: flow_offload: add flow_block_cb_setup_simple()
Most drivers do the same thing to set up the flow block callbacks, this
patch adds a helper function to do this.

This preparation patch reduces the number of changes to adapt the
existing drivers to use the flow block callback API.

This new helper function takes a flow block list per-driver, which is
set to NULL until this driver list is used.

This patch also introduces the flow_block_command and
flow_block_binder_type enumerations, which are renamed to use
FLOW_BLOCK_* in follow up patches.

There are three definitions (aliases) in order to reduce the number of
updates in this patch, which go away once drivers are fully adapted to
use this flow block API.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:38:50 -07:00
Jiangfeng Xiao
d413779cdd net: hisilicon: Add an tx_desc to adapt HI13X1_GMAC
HI13X1 changed the offsets and bitmaps for tx_desc
registers in the same peripheral device on different
models of the hip04_eth.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:27 -07:00
Jiangfeng Xiao
58f34098cf net: hisilicon: Add an rx_desc to adapt HI13X1_GMAC
HI13X1 changed the offsets and bitmaps for rx_desc
registers in the same peripheral device on different
models of the hip04_eth.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Jiangfeng Xiao
b9162d20ed net: hisilicon: Offset buf address to adapt HI13X1_GMAC
The buf unit size of HI13X1_GMAC is cache_line_size,
which is 64, so the address we write to the buf register
needs to be shifted right by 6 bits.

The 31st bit of the PPE_CFG_CPU_ADD_ADDR register
of HI13X1_GMAC indicates whether to release the buffer
of the message, and the low indicates that it is valid.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Jiangfeng Xiao
06ddc0d8d7 net: hisilicon: Add group field to adapt HI13X1_GMAC
In general, group is the same as the port, but some
boards specify a special group for better load
balancing of each processing unit.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Jiangfeng Xiao
24eca4b4c0 net: hisilicon: HI13X1_GMAX need dreq reset at first
HI13X1_GMAC delete request for soft reset at first,
otherwise, the subsequent initialization will not
take effect.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Jiangfeng Xiao
0331f8550c net: hisilicon: HI13X1_GMAX skip write LOCAL_PAGE_REG
HI13X1_GMAC changed the offsets and bitmaps for
GE_TX_LOCAL_PAGE_REG registers in the same peripheral
device on different models of the hip04_eth. With the
default configuration, HI13X1_GMAC can also work without
any writes to the GE_TX_LOCAL_PAGE_REG register.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Jiangfeng Xiao
a8edf52574 net: hisilicon: Cleanup for cast to restricted __be32
This patch fixes the following warning from sparse:
hip04_eth.c:533:23: warning: cast to restricted __be16
hip04_eth.c:533:23: warning: cast to restricted __be16
hip04_eth.c:533:23: warning: cast to restricted __be16
hip04_eth.c:533:23: warning: cast to restricted __be16
hip04_eth.c:534:23: warning: cast to restricted __be32
hip04_eth.c:534:23: warning: cast to restricted __be32
hip04_eth.c:534:23: warning: cast to restricted __be32
hip04_eth.c:534:23: warning: cast to restricted __be32
hip04_eth.c:534:23: warning: cast to restricted __be32
hip04_eth.c:534:23: warning: cast to restricted __be32

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Jiangfeng Xiao
148233ec83 net: hisilicon: Cleanup for got restricted __be32
This patch fixes the following warning from sparse:
hip04_eth.c:468:25: warning: incorrect type in assignment
hip04_eth.c:468:25:    expected unsigned int [usertype] send_addr
hip04_eth.c:468:25:    got restricted __be32 [usertype]
hip04_eth.c:469:25: warning: incorrect type in assignment
hip04_eth.c:469:25:    expected unsigned int [usertype] send_size
hip04_eth.c:469:25:    got restricted __be32 [usertype]
hip04_eth.c:470:19: warning: incorrect type in assignment
hip04_eth.c:470:19:    expected unsigned int [usertype] cfg
hip04_eth.c:470:19:    got restricted __be32 [usertype]
hip04_eth.c:472:23: warning: incorrect type in assignment
hip04_eth.c:472:23:    expected unsigned int [usertype] wb_addr
hip04_eth.c:472:23:    got restricted __be32 [usertype]

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Jiangfeng Xiao
2ede8489c1 net: hisilicon: Add support for HI13X1 to hip04_eth
Extend the hip04_eth driver to support HI13X1_GMAC.
Enable it with CONFIG_HI13X1_GMAC option.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:29:26 -07:00
Biao Huang
b8ef7020d6 net: stmmac: add support for hash table size 128/256 in dwmac4
1. get hash table size in hw feature reigster, and add support
for taller hash table(128/256) in dwmac4.
2. only clear GMAC_PACKET_FILTER bits used in this function,
to avoid side effect to functions of other bits.

stmmac selftests output log with flow control on:
	ethtool -t eth0
	The test result is PASS
	The test extra info:
	 1. MAC Loopback                 0
	 2. PHY Loopback                 -95
	 3. MMC Counters                 0
	 4. EEE                          -95
	 5. Hash Filter MC               0
	 6. Perfect Filter UC            0
	 7. MC Filter                    0
	 8. UC Filter                    0
	 9. Flow Control                 0

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:17:59 -07:00
Biao Huang
efd58adf8f net: stmmac: dwmac4: mac address array boudary violation issue
The mac address array size is GMAC_MAX_PERFECT_ADDRESSES,
so the 'reg' should be less than it, or will affect other registers.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 14:17:59 -07:00
Arnd Bergmann
a1cd4e4324 net: dsa: vsc73xx: fix NET_DSA and OF dependencies
The restructuring of the driver got the dependencies wrong: without
CONFIG_NET_DSA we get this build failure:

WARNING: unmet direct dependencies detected for NET_DSA_VITESSE_VSC73XX
  Depends on [n]: NETDEVICES [=y] && HAVE_NET_DSA [=y] && OF [=y] && NET_DSA [=n]
  Selected by [m]:
  - NET_DSA_VITESSE_VSC73XX_PLATFORM [=m] && NETDEVICES [=y] && HAVE_NET_DSA [=y] && HAS_IOMEM [=y]

ERROR: "dsa_unregister_switch" [drivers/net/dsa/vitesse-vsc73xx-core.ko] undefined!
ERROR: "dsa_switch_alloc" [drivers/net/dsa/vitesse-vsc73xx-core.ko] undefined!
ERROR: "dsa_register_switch" [drivers/net/dsa/vitesse-vsc73xx-core.ko] undefined!

Add the appropriate dependencies.

Fixes: 95711cd5f0 ("net: dsa: vsc73xx: Split vsc73xx driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 13:19:53 -07:00
Josua Mayer
433a06d7d7 net: mvmdio: defer probe of orion-mdio if a clock is not ready
Defer probing of the orion-mdio interface when getting a clock returns
EPROBE_DEFER. This avoids locking up the Armada 8k SoC when mdio is used
before all clocks have been enabled.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 13:03:04 -07:00
Josua Mayer
ea664b1bdc net: mvmdio: print warning when orion-mdio has too many clocks
Print a warning when device tree specifies more than the maximum of four
clocks supported by orion-mdio. Because reading from mdio can lock up
the Armada 8k when a required clock is not initialized, it is important
to notify the user when a specified clock is ignored.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 13:03:04 -07:00
Josua Mayer
4aabed699c net: mvmdio: allow up to four clocks to be specified for orion-mdio
Allow up to four clocks to be specified and enabled for the orion-mdio
interface, which are required by the Armada 8k and defined in
armada-cp110.dtsi.

Fixes a hang in probing the mvmdio driver that was encountered on the
Clearfog GT 8K with all drivers built as modules, but also affects other
boards such as the MacchiatoBIN.

Cc: stable@vger.kernel.org
Fixes: 96cb434238 ("net: mvmdio: allow up to three clocks to be specified for orion-mdio")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 13:03:04 -07:00
Ilias Apalodimas
7715ff1647 net: netsec: start using buffers if page_pool registration succeeded
The current driver starts using page_pool buffers before calling
xdp_rxq_info_reg_mem_model(). Start using the buffers after the
registration succeeded, so we won't have to call
page_pool_request_shutdown() in case of failure

Fixes: 5c67bf0ec4 ("net: netsec: Use page_pool API")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 13:00:01 -07:00
Linus Torvalds
e9a83bd232 It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro.  These create more
    than the usual number of simple but annoying merge conflicts with other
    trees, unfortunately.  He has a lot more of these waiting on the wings
    that, I think, will go to you directly later on.
 
  - A new document on how to use merges and rebases in kernel repos, and one
    on Spectre vulnerabilities.
 
  - Various improvements to the build system, including automatic markup of
    function() references because some people, for reasons I will never
    understand, were of the opinion that :c:func:``function()`` is
    unattractive and not fun to type.
 
  - We now recommend using sphinx 1.7, but still support back to 1.4.
 
  - Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux

Pull Documentation updates from Jonathan Corbet:
 "It's been a relatively busy cycle for docs:

   - A fair pile of RST conversions, many from Mauro. These create more
     than the usual number of simple but annoying merge conflicts with
     other trees, unfortunately. He has a lot more of these waiting on
     the wings that, I think, will go to you directly later on.

   - A new document on how to use merges and rebases in kernel repos,
     and one on Spectre vulnerabilities.

   - Various improvements to the build system, including automatic
     markup of function() references because some people, for reasons I
     will never understand, were of the opinion that
     :c:func:``function()`` is unattractive and not fun to type.

   - We now recommend using sphinx 1.7, but still support back to 1.4.

   - Lots of smaller improvements, warning fixes, typo fixes, etc"

* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
  docs: automarkup.py: ignore exceptions when seeking for xrefs
  docs: Move binderfs to admin-guide
  Disable Sphinx SmartyPants in HTML output
  doc: RCU callback locks need only _bh, not necessarily _irq
  docs: format kernel-parameters -- as code
  Doc : doc-guide : Fix a typo
  platform: x86: get rid of a non-existent document
  Add the RCU docs to the core-api manual
  Documentation: RCU: Add TOC tree hooks
  Documentation: RCU: Rename txt files to rst
  Documentation: RCU: Convert RCU UP systems to reST
  Documentation: RCU: Convert RCU linked list to reST
  Documentation: RCU: Convert RCU basic concepts to reST
  docs: filesystems: Remove uneeded .rst extension on toctables
  scripts/sphinx-pre-install: fix out-of-tree build
  docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
  Documentation: PGP: update for newer HW devices
  Documentation: Add section about CPU vulnerabilities for Spectre
  Documentation: platform: Delete x86-laptop-drivers.txt
  docs: Note that :c:func: should no longer be used
  ...
2019-07-09 12:34:26 -07:00
Jose Abreu
2af6106ae9 net: stmmac: Introducing support for Page Pool
Mapping and unmapping DMA region is an high bottleneck in stmmac driver,
specially in the RX path.

This commit introduces support for Page Pool API and uses it in all RX
queues. With this change, we get more stable troughput and some increase
of banwidth with iperf:
	- MAC1000 - 950 Mbps
	- XGMAC: 9.22 Gbps

Changes from v3:
	- Use page_pool_destroy() (Ilias)
Changes from v2:
	- Uncoditionally call page_pool_free() (Jesper)
Changes from v1:
	- Use page_pool_get_dma_addr() (Jesper)
	- Add a comment (Jesper)
	- Add page_pool_free() call (Jesper)
	- Reintroduce sync_single_for_device (Arnd / Ilias)

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 12:20:08 -07:00
Jose Abreu
06a80a7d09 net: stmmac: Fix descriptors address being in > 32 bits address space
Commit a993db88d1 ("net: stmmac: Enable support for > 32 Bits
addressing in XGMAC"), introduced support for > 32 bits addressing in
XGMAC but the conversion of descriptors to dma_addr_t was left out.

As some devices assing coherent memory in regions > 32 bits we need to
set lower and upper value of descriptors address when initializing DMA
channels.

Luckly, this was working for me because I was assigning CMA to < 4GB
address space for performance reasons.

Fixes: a993db88d1 ("net: stmmac: Enable support for > 32 Bits addressing in XGMAC")
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 12:20:08 -07:00
Jose Abreu
d429b66e2e net: stmmac: Implement RX Coalesce Frames setting
Add support for coalescing RX path by specifying number of frames which
don't need to have interrupt on completion bit set.

This is only available when RX Watchdog is enabled.

Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 12:20:08 -07:00
Michael Chan
12479f627f bnxt_en: Add page_pool_destroy() during RX ring cleanup.
Add page_pool_destroy() in bnxt_free_rx_rings() during normal RX ring
cleanup, as Ilias has informed us that the following commit has been
merged:

1da4bbeffe ("net: core: page_pool: add user refcnt and reintroduce page_pool_destroy")

The special error handling code to call page_pool_free() can now be
removed.  bnxt_free_rx_rings() will always be called during normal
shutdown or any error paths.

Fixes: 322b87ca55 ("bnxt_en: add page_pool support")
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Acked-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 12:17:54 -07:00
Parav Pandit
f60f315d33 net/mlx5e: Register devlink ports for physical link, PCI PF, VFs
Register devlink port of physical port, PCI PF and PCI VF flavour
for each PF, VF when a given devlink instance is in switchdev mode.

Implement ndo_get_devlink_port callback API to make use of registered
devlink ports.
This eliminates ndo_get_phys_port_name() and ndo_get_port_parent_id()
callbacks. Hence, remove them.

An example output with 2 VFs, without a PF and single uplink port is
below.

$devlink port show
pci/0000:06:00.0/65535: type eth netdev ens2f0 flavour physical
pci/0000:05:00.0/1: type eth netdev eth1 flavour pcivf pfnum 0 vfnum 0
pci/0000:05:00.0/2: type eth netdev eth2 flavour pcivf pfnum 0 vfnum 1

Reviewed-by: Roi Dayan <roid@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-09 12:02:13 -07:00
Linus Torvalds
4d2fa8b44b Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 5.3:

  API:
   - Test shash interface directly in testmgr
   - cra_driver_name is now mandatory

  Algorithms:
   - Replace arc4 crypto_cipher with library helper
   - Implement 5 way interleave for ECB, CBC and CTR on arm64
   - Add xxhash
   - Add continuous self-test on noise source to drbg
   - Update jitter RNG

  Drivers:
   - Add support for SHA204A random number generator
   - Add support for 7211 in iproc-rng200
   - Fix fuzz test failures in inside-secure
   - Fix fuzz test failures in talitos
   - Fix fuzz test failures in qat"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (143 commits)
  crypto: stm32/hash - remove interruptible condition for dma
  crypto: stm32/hash - Fix hmac issue more than 256 bytes
  crypto: stm32/crc32 - rename driver file
  crypto: amcc - remove memset after dma_alloc_coherent
  crypto: ccp - Switch to SPDX license identifiers
  crypto: ccp - Validate the the error value used to index error messages
  crypto: doc - Fix formatting of new crypto engine content
  crypto: doc - Add parameter documentation
  crypto: arm64/aes-ce - implement 5 way interleave for ECB, CBC and CTR
  crypto: arm64/aes-ce - add 5 way interleave routines
  crypto: talitos - drop icv_ool
  crypto: talitos - fix hash on SEC1.
  crypto: talitos - move struct talitos_edesc into talitos.h
  lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE
  crypto/NX: Set receive window credits to max number of CRBs in RxFIFO
  crypto: asymmetric_keys - select CRYPTO_HASH where needed
  crypto: serpent - mark __serpent_setkey_sbox noinline
  crypto: testmgr - dynamically allocate crypto_shash
  crypto: testmgr - dynamically allocate testvec_config
  crypto: talitos - eliminate unneeded 'done' functions at build time
  ...
2019-07-08 20:57:08 -07:00
Jakub Kicinski
5a4cea280c nfp: tls: undo TLS sequence tracking when dropping the frame
If driver has to drop the TLS frame it needs to undo the TCP
sequence tracking changes, otherwise device will receive
segments out of order and drop them.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Jakub Kicinski
c8d3928ea7 nfp: tls: avoid one of the ifdefs for TLS
Move the #ifdef CONFIG_TLS_DEVICE a little so we can eliminate
the other one.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Jakub Kicinski
c3b6491133 nfp: tls: don't leave key material in freed FW cmsg skbs
Make sure the contents of the skb which carried key material
to the FW is cleared.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Dirk van der Merwe
b5d9a834f4 net/tls: don't clear TX resync flag on error
Introduce a return code for the tls_dev_resync callback.

When the driver TX resync fails, kernel can retry the resync again
until it succeeds.  This prevents drivers from attempting to offload
TLS packets if the connection is known to be out of sync.

We don't worry about the RX resync since they will be retried naturally
as more encrypted records get received.

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Jakub Kicinski
427545b304 nfp: tls: count TSO segments separately for the TLS offload
Count the number of successfully submitted TLS segments,
not skbs. This will make it easier to compare the TLS
encryption count against other counters.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Dirk van der Merwe
f6dfa31509 nfp: ccm: increase message limits
Increase the batch limit to consume small message bursts more
effectively. Practically, the effect on the 'add' messages is not
significant since the mailbox is sized such that the 'add' messages are
still limited to the same order of magnitude that it was originally set
for.

Furthermore, increase the queue size limit to 1024 entries. This further
improves the handling of bursts of small control messages.

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Jakub Kicinski
53601c68b8 nfp: tls: use unique connection ids instead of 4-tuple for TX
Connection 4 tuple reuse is slightly problematic - TLS socket
and context do not get destroyed until all the associated skbs
left the system and all references are released. This leads
to stale connection entry in the device preventing addition
of new one if the 4 tuple is reused quickly enough.

Instead of using read 4 tuple as the key use a unique ID.
Set the protocol to TCP and port to 0 to ensure no collisions
with real connections.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Jakub Kicinski
ff8869d5ed nfp: tls: move setting ipver_vlan to a helper
Long lines are ugly.  No functional changes.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Jakub Kicinski
0f93242d96 nfp: tls: ignore queue limits for delete commands
We need to do our best not to drop delete commands, otherwise
we will have stale entries in the connection table.  Ignore
the control message queue limits for delete commands.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:21:09 -07:00
Fuqian Huang
ccf355e52a net: phy: Make use of linkmode_mod_bit helper
linkmode_mod_bit is introduced as a helper function to set/clear
bits in a linkmode.
Replace the if else code structure with a call to the helper
linkmode_mod_bit.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 20:10:34 -07:00
David S. Miller
af144a9834 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two cases of overlapping changes, nothing fancy.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 19:48:57 -07:00
Vincent Bernat
ee4f56f46a bonding: fix value exported by Netlink for peer_notif_delay
IFLA_BOND_PEER_NOTIF_DELAY was set to the value of downdelay instead
of peer_notif_delay. After this change, the correct value is exported.

Fixes: 07a4ddec3c ("bonding: add an option to specify a delay between peer notifications")
Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 19:28:44 -07:00
Al Viro
333f7909a8 coallocate socket_wq with socket itself
socket->wq is assign-once, set when we are initializing both
struct socket it's in and struct socket_wq it points to.  As the
matter of fact, the only reason for separate allocation was the
ability to RCU-delay freeing of socket_wq.  RCU-delaying the
freeing of socket itself gets rid of that need, so we can just
fold struct socket_wq into the end of struct socket and simplify
the life both for sock_alloc_inode() (one allocation instead of
two) and for tun/tap oddballs, where we used to embed struct socket
and struct socket_wq into the same structure (now - embedding just
the struct socket).

Note that reference to struct socket_wq in struct sock does remain
a reference - that's unchanged.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 19:25:19 -07:00
Wen Yang
faf5577f24 net: pasemi: fix an use-after-free in pasemi_mac_phy_init()
The phy_dn variable is still being used in of_phy_connect() after the
of_node_put() call, which may result in use-after-free.

Fixes: 1dd2d06c04 ("net: Rework pasemi_mac driver to use of_mdio infrastructure")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 16:33:02 -07:00
Wen Yang
ef86ea982b net: axienet: fix a potential double free in axienet_probe()
There is a possible use-after-free issue in the axienet_probe():

1701:	np = of_parse_phandle(pdev->dev.of_node, "axistream-connected", 0);
1702:   if (np) {
...
1787:		of_node_put(np); ---> released here
1788:		lp->eth_irq = platform_get_irq(pdev, 0);
1789:	} else {
...
1801:	}
1802:	if (IS_ERR(lp->dma_regs)) {
...
1805:		of_node_put(np); ---> double released here
1806:		goto free_netdev;
1807:	}

We solve this problem by removing the unnecessary of_node_put().

Fixes: 28ef9ebdb6 ("net: axienet: make use of axistream-connected attribute optional")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Anirudha Sarangi <anirudh@xilinx.com>
Cc: John Linn <John.Linn@xilinx.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Robert Hancock <hancock@sedsystems.ca>
Cc: netdev@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 16:28:32 -07:00
Kweh Hock Leong
d4117d63a3 net: stmmac: enable clause 45 mdio support
DWMAC4 is capable to support clause 45 mdio communication.
This patch enable the feature on stmmac_mdio_write() and
stmmac_mdio_read() by following phy_write_mmd() and
phy_read_mmd() mdiobus read write implementation format.

Reviewed-by: Li, Yifan <yifan2.li@intel.com>
Signed-off-by: Kweh Hock Leong <hock.leong.kweh@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 16:08:55 -07:00
Maxime Chevallier
f406324e50 net: mvpp2: cls: Add support for ETHER_FLOW
Users can specify classification actions based on the 'ether' flow type.
In that case, this will apply to all ethernet traffic, superseeding
flows such as 'udp4' or 'tcp6'.

Add support for this flow type in the PPv2 classifier, by mapping the
ETHER_FLOW value to the corresponding entries in the classifier.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 15:50:06 -07:00
Maxime Chevallier
f4f1ba1819 net: mvpp2: cls: Report an error for unsupported flow types
Add a missing check to detect flow types that we don't support, so that
user can be informed of this.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 15:50:06 -07:00
Wei Yongjun
31d166642c nfp: tls: fix error return code in nfp_net_tls_add()
Fix to return negative error code -EINVAL from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 1f35a56cf5 ("nfp: tls: add/delete TLS TX connections")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 15:27:33 -07:00
Andy Gospodarek
322b87ca55 bnxt_en: add page_pool support
This removes contention over page allocation for XDP_REDIRECT actions by
adding page_pool support per queue for the driver.  The performance for
XDP_REDIRECT actions scales linearly with the number of cores performing
redirect actions when using the page pools instead of the standard page
allocator.

v2: Fix up the error path from XDP registration, noted by Ilias Apalodimas.

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>
2019-07-08 15:15:25 -07:00
Andy Gospodarek
f18c2b77b2 bnxt_en: optimized XDP_REDIRECT support
This adds basic support for XDP_REDIRECT in the bnxt_en driver.  Next
patch adds the more optimized page pool support.

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>
2019-07-08 15:15:24 -07:00
Michael Chan
c1ba92a86d bnxt_en: Refactor __bnxt_xmit_xdp().
__bnxt_xmit_xdp() is used by XDP_TX and ethtool loopback packet transmit.
Refactor it so that it can be re-used by the XDP_REDIRECT logic.
Restructure the TX interrupt handler logic to cleanly separate XDP_TX
logic in preparation for XDP_REDIRECT.

Acked-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 15:15:24 -07:00
Andy Gospodarek
52c0609258 bnxt_en: rename some xdp functions
Renaming bnxt_xmit_xdp to __bnxt_xmit_xdp to get ready for XDP_REDIRECT
support and reduce confusion/namespace collision.

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>
2019-07-08 15:15:24 -07:00
Ivan Khoronzhuk
9ed4050c0d net: ethernet: ti: cpsw: add XDP support
Add XDP support based on rx page_pool allocator, one frame per page.
Page pool allocator is used with assumption that only one rx_handler
is running simultaneously. DMA map/unmap is reused from page pool
despite there is no need to map whole page.

Due to specific of cpsw, the same TX/RX handler can be used by 2
network devices, so special fields in buffer are added to identify
an interface the frame is destined to. Thus XDP works for both
interfaces, that allows to test xdp redirect between two interfaces
easily. Also, each rx queue have own page pools, but common for both
netdevs.

XDP prog is common for all channels till appropriate changes are added
in XDP infrastructure. Also, once page_pool recycling becomes part of
skb netstack some simplifications can be added, like removing
page_pool_release_page() before skb receive.

In order to keep rx_dev while redirect, that can be somehow used in
future, do flush in rx_handler, that allows to keep rx dev the same
while redirect. It allows to conform with tracing rx_dev pointed
by Jesper.

Also, there is probability, that XDP generic code can be extended to
support multi ndev drivers like this one, using same rx queue for
several ndevs, based on switchdev for instance or else. In this case,
driver can be modified like exposed here:
https://lkml.org/lkml/2019/7/3/243

Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 14:58:04 -07:00
Ivan Khoronzhuk
608ef6202f net: ethernet: ti: cpsw_ethtool: allow res split while down
That's possible to set channel num while interfaces are down. When
interface gets up it should resplit budget. This resplit can happen
after phy is up but only if speed is changed, so should be set before
this, for this allow it to happen while changing number of channels,
when interfaces are down.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 14:58:04 -07:00
Ivan Khoronzhuk
962fb61890 net: ethernet: ti: davinci_cpdma: allow desc split while down
That's possible to set ring params while interfaces are down. When
interface gets up it uses number of descs to fill rx queue and on
later on changes to create rx pools. Usually, this resplit can happen
after phy is up, but it can be needed before this, so allow it to
happen while setting number of rx descs, when interfaces are down.
Also, if no dependency on intf state, move it to cpdma layer, where
it should be.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 14:58:04 -07:00
Ivan Khoronzhuk
6670acacd5 net: ethernet: ti: davinci_cpdma: add dma mapped submit
In case if dma mapped packet needs to be sent, like with XDP
page pool, the "mapped" submit can be used. This patch adds dma
mapped submit based on regular one.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 14:58:04 -07:00
Ivan Khoronzhuk
1da4bbeffe net: core: page_pool: add user refcnt and reintroduce page_pool_destroy
Jesper recently removed page_pool_destroy() (from driver invocation)
and moved shutdown and free of page_pool into xdp_rxq_info_unreg(),
in-order to handle in-flight packets/pages. This created an asymmetry
in drivers create/destroy pairs.

This patch reintroduce page_pool_destroy and add page_pool user
refcnt. This serves the purpose to simplify drivers error handling as
driver now drivers always calls page_pool_destroy() and don't need to
track if xdp_rxq_info_reg_mem_model() was unsuccessful.

This could be used for a special cases where a single RX-queue (with a
single page_pool) provides packets for two net_device'es, and thus
needs to register the same page_pool twice with two xdp_rxq_info
structures.

This patch is primarily to ease API usage for drivers. The recently
merged netsec driver, actually have a bug in this area, which is
solved by this API change.

This patch is a modified version of Ivan Khoronzhuk's original patch.

Link: https://lore.kernel.org/netdev/20190625175948.24771-2-ivan.khoronzhuk@linaro.org/
Fixes: 5c67bf0ec4 ("net: netsec: Use page_pool API")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 14:58:04 -07:00
Arnd Bergmann
49db9228b8 macb: fix build warning for !CONFIG_OF
When CONFIG_OF is disabled, we get a harmless warning about the
newly added variable:

drivers/net/ethernet/cadence/macb_main.c:48:39: error: 'mgmt' defined but not used [-Werror=unused-variable]
 static struct sifive_fu540_macb_mgmt *mgmt;

Move the variable closer to its use inside of the #ifdef.

Fixes: c218ad5590 ("macb: Add support for SiFive FU540-C000")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 12:43:07 -07:00
Arnd Bergmann
0287f9ed16 gve: fix unused variable/label warnings
On unusual page sizes, we get harmless warnings:

drivers/net/ethernet/google/gve/gve_rx.c:283:6: error: unused variable 'pagecount' [-Werror,-Wunused-variable]
drivers/net/ethernet/google/gve/gve_rx.c:336:1: error: unused label 'have_skb' [-Werror,-Wunused-label]

Change the preprocessor #if to regular if() to avoid this.

Fixes: f5cedc84a3 ("gve: Add transmit and receive support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 12:40:58 -07:00
Jose Abreu
4993e5b37e net: stmmac: Re-work the queue selection for TSO packets
Ben Hutchings says:
	"This is the wrong place to change the queue mapping.
	stmmac_xmit() is called with a specific TX queue locked,
	and accessing a different TX queue results in a data race
	for all of that queue's state.

	I think this commit should be reverted upstream and in all
	stable branches.  Instead, the driver should implement the
	ndo_select_queue operation and override the queue mapping there."

Fixes: c5acdbee22 ("net: stmmac: Send TSO packets always from Queue 0")
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 12:36:06 -07:00
Martin Habets
05cfee98c8 sfc: Remove 'PCIE error reporting unavailable'
This is only at notice level but it was pointed out that no other driver
does this.
Also there is no action the user can take as it is really a property of
the server.

Signed-off-by: Martin Habets <mhabets@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 12:16:48 -07:00
Ilias Apalodimas
bfb204129a net: netsec: Sync dma for device on buffer allocation
cd1973a921 ("net: netsec: Sync dma for device on buffer allocation")
was merged on it's v1 instead of the v3.
Merge the proper patch version

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 11:48:10 -07:00
Linus Torvalds
927ba67a63 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The timer and timekeeping departement delivers:

  Core:

   - The consolidation of the VDSO code into a generic library including
     the conversion of x86 and ARM64. Conversion of ARM and MIPS are en
     route through the relevant maintainer trees and should end up in
     5.4.

     This gets rid of the unnecessary different copies of the same code
     and brings all architectures on the same level of VDSO
     functionality.

   - Make the NTP user space interface more robust by restricting the
     TAI offset to prevent undefined behaviour. Includes a selftest.

   - Validate user input in the compat settimeofday() syscall to catch
     invalid values which would be turned into valid values by a
     multiplication overflow

   - Consolidate the time accessors

   - Small fixes, improvements and cleanups all over the place

  Drivers:

   - Support for the NXP system counter, TI davinci timer

   - Move the Microsoft HyperV clocksource/events code into the
     drivers/clocksource directory so it can be shared between x86 and
     ARM64.

   - Overhaul of the Tegra driver

   - Delay timer support for IXP4xx

   - Small fixes, improvements and cleanups as usual"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
  time: Validate user input in compat_settimeofday()
  timer: Document TIMER_PINNED
  clocksource/drivers: Continue making Hyper-V clocksource ISA agnostic
  clocksource/drivers: Make Hyper-V clocksource ISA agnostic
  MAINTAINERS: Fix Andy's surname and the directory entries of VDSO
  hrtimer: Use a bullet for the returns bullet list
  arm64: vdso: Fix compilation with clang older than 8
  arm64: compat: Fix __arch_get_hw_counter() implementation
  arm64: Fix __arch_get_hw_counter() implementation
  lib/vdso: Make delta calculation work correctly
  MAINTAINERS: Add entry for the generic VDSO library
  arm64: compat: No need for pre-ARMv7 barriers on an ARMv8 system
  arm64: vdso: Remove unnecessary asm-offsets.c definitions
  vdso: Remove superfluous #ifdef __KERNEL__ in vdso/datapage.h
  clocksource/drivers/davinci: Add support for clocksource
  clocksource/drivers/davinci: Add support for clockevents
  clocksource/drivers/tegra: Set up maximum-ticks limit properly
  clocksource/drivers/tegra: Cycles can't be 0
  clocksource/drivers/tegra: Restore base address before cleanup
  clocksource/drivers/tegra: Add verbose definition for 1MHz constant
  ...
2019-07-08 11:06:29 -07:00
Xue Chaojing
61a582be1a hinic: add fw version query
This patch adds firmware version query in ethtool -i.

Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 22:15:12 -07:00
Wei Yongjun
877cb240f6 gve: Fix error return code in gve_alloc_qpls()
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: f5cedc84a3 ("gve: Add transmit and receive support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 19:25:36 -07:00
Joe Perches
6b4ddf9950 net: nixge: Fix misuse of strlcpy
Probable cut&paste typo - use the correct field size.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 19:23:05 -07:00
Joe Perches
7391324ba4 net: ethernet: sun4i-emac: Fix misuse of strlcpy
Probable cut&paste typo - use the correct field size.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 19:22:03 -07:00
Taehee Yoo
e30155fd23 gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable()
If an invalid role is sent from user space, gtp_encap_enable() will fail.
Then, it should call gtp_encap_disable_sock() but current code doesn't.
It makes memory leak.

Fixes: 91ed81f9ab ("gtp: support SGSN-side tunnels")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 18:42:48 -07:00
Taehee Yoo
a2bed90704 gtp: fix use-after-free in gtp_newlink()
Current gtp_newlink() could be called after unregister_pernet_subsys().
gtp_newlink() uses gtp_net but it can be destroyed by
unregister_pernet_subsys().
So unregister_pernet_subsys() should be called after
rtnl_link_unregister().

Test commands:
   #SHELL 1
   while :
   do
	   for i in {1..5}
	   do
		./gtp-link add gtp$i &
	   done
	   killall gtp-link
   done

   #SHELL 2
   while :
   do
	modprobe -rv gtp
   done

Splat looks like:
[  753.176631] BUG: KASAN: use-after-free in gtp_newlink+0x9b4/0xa5c [gtp]
[  753.177722] Read of size 8 at addr ffff8880d48f2458 by task gtp-link/7126
[  753.179082] CPU: 0 PID: 7126 Comm: gtp-link Tainted: G        W         5.2.0-rc6+ #50
[  753.185801] Call Trace:
[  753.186264]  dump_stack+0x7c/0xbb
[  753.186863]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.187583]  print_address_description+0xc7/0x240
[  753.188382]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.189097]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.189846]  __kasan_report+0x12a/0x16f
[  753.190542]  ? gtp_newlink+0x9b4/0xa5c [gtp]
[  753.191298]  kasan_report+0xe/0x20
[  753.191893]  gtp_newlink+0x9b4/0xa5c [gtp]
[  753.192580]  ? __netlink_ns_capable+0xc3/0xf0
[  753.193370]  __rtnl_newlink+0xb9f/0x11b0
[ ... ]
[  753.241201] Allocated by task 7186:
[  753.241844]  save_stack+0x19/0x80
[  753.242399]  __kasan_kmalloc.constprop.3+0xa0/0xd0
[  753.243192]  __kmalloc+0x13e/0x300
[  753.243764]  ops_init+0xd6/0x350
[  753.244314]  register_pernet_operations+0x249/0x6f0
[ ... ]
[  753.251770] Freed by task 7178:
[  753.252288]  save_stack+0x19/0x80
[  753.252833]  __kasan_slab_free+0x111/0x150
[  753.253962]  kfree+0xc7/0x280
[  753.254509]  ops_free_list.part.11+0x1c4/0x2d0
[  753.255241]  unregister_pernet_operations+0x262/0x390
[ ... ]
[  753.285883] list_add corruption. next->prev should be prev (ffff8880d48f2458), but was ffff8880d497d878. (next.
[  753.287241] ------------[ cut here ]------------
[  753.287794] kernel BUG at lib/list_debug.c:25!
[  753.288364] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[  753.289099] CPU: 0 PID: 7126 Comm: gtp-link Tainted: G    B   W         5.2.0-rc6+ #50
[  753.291036] RIP: 0010:__list_add_valid+0x74/0xd0
[  753.291589] Code: 48 39 da 75 27 48 39 f5 74 36 48 39 dd 74 31 48 83 c4 08 b8 01 00 00 00 5b 5d c3 48 89 d9 48b
[  753.293779] RSP: 0018:ffff8880cae8f398 EFLAGS: 00010286
[  753.294401] RAX: 0000000000000075 RBX: ffff8880d497d878 RCX: 0000000000000000
[  753.296260] RDX: 0000000000000075 RSI: 0000000000000008 RDI: ffffed10195d1e69
[  753.297070] RBP: ffff8880cd250ae0 R08: ffffed101b4bff21 R09: ffffed101b4bff21
[  753.297899] R10: 0000000000000001 R11: ffffed101b4bff20 R12: ffff8880d497d878
[  753.298703] R13: 0000000000000000 R14: ffff8880cd250ae0 R15: ffff8880d48f2458
[  753.299564] FS:  00007f5f79805740(0000) GS:ffff8880da400000(0000) knlGS:0000000000000000
[  753.300533] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  753.301231] CR2: 00007fe8c7ef4f10 CR3: 00000000b71a6006 CR4: 00000000000606f0
[  753.302183] Call Trace:
[  753.302530]  gtp_newlink+0x5f6/0xa5c [gtp]
[  753.303037]  ? __netlink_ns_capable+0xc3/0xf0
[  753.303576]  __rtnl_newlink+0xb9f/0x11b0
[  753.304092]  ? rtnl_link_unregister+0x230/0x230

Fixes: 459aa660eb ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 18:42:47 -07:00
Taehee Yoo
3f167e1921 gtp: fix Illegal context switch in RCU read-side critical section.
ipv4_pdp_add() is called in RCU read-side critical section.
So GFP_KERNEL should not be used in the function.
This patch make ipv4_pdp_add() to use GFP_ATOMIC instead of GFP_KERNEL.

Test commands:
gtp-link add gtp1 &
gtp-tunnel add gtp1 v1 100 200 1.1.1.1 2.2.2.2

Splat looks like:
[  130.618881] =============================
[  130.626382] WARNING: suspicious RCU usage
[  130.626994] 5.2.0-rc6+ #50 Not tainted
[  130.627622] -----------------------------
[  130.628223] ./include/linux/rcupdate.h:266 Illegal context switch in RCU read-side critical section!
[  130.629684]
[  130.629684] other info that might help us debug this:
[  130.629684]
[  130.631022]
[  130.631022] rcu_scheduler_active = 2, debug_locks = 1
[  130.632136] 4 locks held by gtp-tunnel/1025:
[  130.632925]  #0: 000000002b93c8b7 (cb_lock){++++}, at: genl_rcv+0x15/0x40
[  130.634159]  #1: 00000000f17bc999 (genl_mutex){+.+.}, at: genl_rcv_msg+0xfb/0x130
[  130.635487]  #2: 00000000c644ed8e (rtnl_mutex){+.+.}, at: gtp_genl_new_pdp+0x18c/0x1150 [gtp]
[  130.636936]  #3: 0000000007a1cde7 (rcu_read_lock){....}, at: gtp_genl_new_pdp+0x187/0x1150 [gtp]
[  130.638348]
[  130.638348] stack backtrace:
[  130.639062] CPU: 1 PID: 1025 Comm: gtp-tunnel Not tainted 5.2.0-rc6+ #50
[  130.641318] Call Trace:
[  130.641707]  dump_stack+0x7c/0xbb
[  130.642252]  ___might_sleep+0x2c0/0x3b0
[  130.642862]  kmem_cache_alloc_trace+0x1cd/0x2b0
[  130.643591]  gtp_genl_new_pdp+0x6c5/0x1150 [gtp]
[  130.644371]  genl_family_rcv_msg+0x63a/0x1030
[  130.645074]  ? mutex_lock_io_nested+0x1090/0x1090
[  130.645845]  ? genl_unregister_family+0x630/0x630
[  130.646592]  ? debug_show_all_locks+0x2d0/0x2d0
[  130.647293]  ? check_flags.part.40+0x440/0x440
[  130.648099]  genl_rcv_msg+0xa3/0x130
[ ... ]

Fixes: 459aa660eb ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 18:42:47 -07:00
Taehee Yoo
a635037ac1 gtp: remove duplicate code in gtp_dellink()
gtp_encap_disable() in gtp_dellink() is unnecessary because it will be
called by unregister_netdevice().
unregister_netdevice() internally calls gtp_dev_uninit() by ->ndo_uninit().
And gtp_dev_uninit() calls gtp_encap_disable().

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 18:42:47 -07:00
Taehee Yoo
1788b8569f gtp: fix use-after-free in gtp_encap_destroy()
gtp_encap_destroy() is called twice.
1. When interface is deleted.
2. When udp socket is destroyed.
either gtp->sk0 or gtp->sk1u could be freed by sock_put() in
gtp_encap_destroy(). so, when gtp_encap_destroy() is called again,
it would uses freed sk pointer.

patch makes gtp_encap_destroy() to set either gtp->sk0 or gtp->sk1u to
null. in addition, both gtp->sk0 and gtp->sk1u pointer are protected
by rtnl_lock. so, rtnl_lock() is added.

Test command:
   gtp-link add gtp1 &
   killall gtp-link
   ip link del gtp1

Splat looks like:
[   83.182767] BUG: KASAN: use-after-free in __lock_acquire+0x3a20/0x46a0
[   83.184128] Read of size 8 at addr ffff8880cc7d5360 by task ip/1008
[   83.185567] CPU: 1 PID: 1008 Comm: ip Not tainted 5.2.0-rc6+ #50
[   83.188469] Call Trace:
[ ... ]
[   83.200126]  lock_acquire+0x141/0x380
[   83.200575]  ? lock_sock_nested+0x3a/0xf0
[   83.201069]  _raw_spin_lock_bh+0x38/0x70
[   83.201551]  ? lock_sock_nested+0x3a/0xf0
[   83.202044]  lock_sock_nested+0x3a/0xf0
[   83.202520]  gtp_encap_destroy+0x18/0xe0 [gtp]
[   83.203065]  gtp_encap_disable.isra.14+0x13/0x50 [gtp]
[   83.203687]  gtp_dellink+0x56/0x170 [gtp]
[   83.204190]  rtnl_delete_link+0xb4/0x100
[ ... ]
[   83.236513] Allocated by task 976:
[   83.236925]  save_stack+0x19/0x80
[   83.237332]  __kasan_kmalloc.constprop.3+0xa0/0xd0
[   83.237894]  kmem_cache_alloc+0xd8/0x280
[   83.238360]  sk_prot_alloc.isra.42+0x50/0x200
[   83.238874]  sk_alloc+0x32/0x940
[   83.239264]  inet_create+0x283/0xc20
[   83.239684]  __sock_create+0x2dd/0x540
[   83.240136]  __sys_socket+0xca/0x1a0
[   83.240550]  __x64_sys_socket+0x6f/0xb0
[   83.240998]  do_syscall_64+0x9c/0x450
[   83.241466]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   83.242061]
[   83.242249] Freed by task 0:
[   83.242616]  save_stack+0x19/0x80
[   83.243013]  __kasan_slab_free+0x111/0x150
[   83.243498]  kmem_cache_free+0x89/0x250
[   83.244444]  __sk_destruct+0x38f/0x5a0
[   83.245366]  rcu_core+0x7e9/0x1c20
[   83.245766]  __do_softirq+0x213/0x8fa

Fixes: 1e3a3abd8b ("gtp: make GTP sockets in gtp_newlink optional")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 18:42:47 -07:00
Taehee Yoo
e198987e7d gtp: fix suspicious RCU usage
gtp_encap_enable_socket() and gtp_encap_destroy() are not protected
by rcu_read_lock(). and it's not safe to write sk->sk_user_data.
This patch make these functions to use lock_sock() instead of
rcu_dereference_sk_user_data().

Test commands:
    gtp-link add gtp1

Splat looks like:
[   83.238315] =============================
[   83.239127] WARNING: suspicious RCU usage
[   83.239702] 5.2.0-rc6+ #49 Not tainted
[   83.240268] -----------------------------
[   83.241205] drivers/net/gtp.c:799 suspicious rcu_dereference_check() usage!
[   83.243828]
[   83.243828] other info that might help us debug this:
[   83.243828]
[   83.246325]
[   83.246325] rcu_scheduler_active = 2, debug_locks = 1
[   83.247314] 1 lock held by gtp-link/1008:
[   83.248523]  #0: 0000000017772c7f (rtnl_mutex){+.+.}, at: __rtnl_newlink+0x5f5/0x11b0
[   83.251503]
[   83.251503] stack backtrace:
[   83.252173] CPU: 0 PID: 1008 Comm: gtp-link Not tainted 5.2.0-rc6+ #49
[   83.253271] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[   83.254562] Call Trace:
[   83.254995]  dump_stack+0x7c/0xbb
[   83.255567]  gtp_encap_enable_socket+0x2df/0x360 [gtp]
[   83.256415]  ? gtp_find_dev+0x1a0/0x1a0 [gtp]
[   83.257161]  ? memset+0x1f/0x40
[   83.257843]  gtp_newlink+0x90/0xa21 [gtp]
[   83.258497]  ? __netlink_ns_capable+0xc3/0xf0
[   83.259260]  __rtnl_newlink+0xb9f/0x11b0
[   83.260022]  ? rtnl_link_unregister+0x230/0x230
[ ... ]

Fixes: 1e3a3abd8b ("gtp: make GTP sockets in gtp_newlink optional")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 18:42:47 -07:00
Pawel Dembicki
1da39ff09e net: dsa: vsc73xx: Assert reset if iCPU is enabled
Driver allow to use devices with disabled iCPU only.

Some devices have pre-initialised iCPU by bootloader.
That state make switch unmanaged. This patch force reset
if device is in unmanaged state. In the result chip lost
internal firmware from RAM and it can be managed.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 14:16:32 -07:00
Pawel Dembicki
631e83bf7c net: dsa: vsc73xx: add support for parallel mode
This patch add platform part of vsc73xx driver.
It allows to use chip connected to a parallel memory bus and work in
memory-mapped I/O mode. (aka PI bus in chip manual)

By default device is working in big endian mode.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 14:16:32 -07:00
Pawel Dembicki
95711cd5f0 net: dsa: vsc73xx: Split vsc73xx driver
This driver (currently) only takes control of the switch chip over
SPI and configures it to route packages around when connected to a
CPU port. But Vitesse chip support also parallel interface.

This patch split driver into two parts: core and spi. It is required
for add support to another managing interface.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 14:16:32 -07:00
Heiner Kallweit
9e0773c387 r8169: sync few chip names with vendor driver
This patch syncs the name of few chip versions with the latest vendor
driver version.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-07 13:05:40 -07:00
David S. Miller
437fde6cda wireless-drivers-next patches for 5.3
Second, and last, set of patches for 5.3.
 
 Major changes:
 
 mt76
 
 * use NAPI polling for tx cleanup on mt7603/mt7615
 
 * add support for toggling edcca on mt7603
 
 * fix rate control / tx status reporting issues on mt76x02/mt7603
 
 * add support for eeprom calibration data from mtd on mt7615
 
 * support configuring tx power on mt7615
 
 * per-chain signal reporting on mt7615
 
 iwlwifi
 
 * Update the FW API for Channel State Information (CSI)
 
 * Special Specific Absorption Rate (SAR) implementation for South Korea
 
 ath10k
 
 * fixes for SDIO support
 
 * add support for firmware logging via WMI
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Merge tag 'wireless-drivers-next-for-davem-2019-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.3

Second, and last, set of patches for 5.3.

Major changes:

mt76

* use NAPI polling for tx cleanup on mt7603/mt7615

* add support for toggling edcca on mt7603

* fix rate control / tx status reporting issues on mt76x02/mt7603

* add support for eeprom calibration data from mtd on mt7615

* support configuring tx power on mt7615

* per-chain signal reporting on mt7615

iwlwifi

* Update the FW API for Channel State Information (CSI)

* Special Specific Absorption Rate (SAR) implementation for South Korea

ath10k

* fixes for SDIO support

* add support for firmware logging via WMI
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-06 15:19:01 -07:00
Tariq Toukan
d2ead1f360 net/mlx5e: Add kTLS TX HW offload support
Add support for transmit side kernel-TLS acceleration.
Offload the crypto encryption to HW.

Per TLS connection:
- Use a separate TIS to maintain the HW context.
- Use a separate encryption key.
- Maintain static and progress HW contexts by posting the proper
  WQEs at creation time, or upon resync.
- Use a special DUMP opcode to replay the previous frags and sync
  the HW context.

To make sure the SQ is able to serve an xmit request, increase
SQ stop room to cover:
- static params WQE,
- progress params WQE, and
- resync DUMP per frag.

Currently supporting TLS 1.2, and key size 128bit.

Tested over SimX simulator.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:20 -07:00
Tariq Toukan
37badd159c net/mlx5e: Introduce a fenced NOP WQE posting function
Similar to the existing mlx5e_post_nop(), but marks a fence
in the WQE control segment.

Added as a separate new function to not hurt the performance
of the common case.

To be used in a downstream patch of the series.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
2b257a6e73 net/mlx5e: Re-work TIS creation functions
Let the EN TIS creation function (mlx5e_create_tis) be responsible
for applying common mdev related fields.
Other specific fields must be set by the caller and passed within
the inbox.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
01614d4f60 net/mlx5e: Tx, Unconstify SQ stop room
Use an SQ field for stop_room, and use the larger value only if TLS
is supported.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Eran Ben Elisha
9ab0233728 net/mlx5e: Tx, Don't implicitly assume SKB-less wqe has one WQEBB
When polling a CQE of an SKB-less WQE, don't assume it consumed only
one WQEBB. Use wi->num_wqebbs directly instead.
In the downstream patch, SKB-less WQEs might have more the one WQEBB,
thus this change is needed.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
fd1b225963 net/mlx5e: Tx, Make SQ WQE fetch function type generic
Change mlx5e_sq_fetch_wqe to be agnostic to the Work Queue
Element (WQE) type.
Before this patch, it was specific for struct mlx5e_tx_wqe.

In order to allow the change, the function now returns the
generic void pointer, and gets the WQE size to do the zero
memset.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
740114a87e net/mlx5e: Tx, Enforce L4 inline copy when needed
When ctrl->tisn field exists, this indicates an operation (HW offload)
on the TCP payload.
For such WQEs, inline the headers up to L4.

This is in preparation for kTLS HW offload support, added in
a downstream patch.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
542578c679 net/mlx5e: Move helper functions to a new txrx datapath header
Take datapath helper functions to a new header file en/txrx.h.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
fc707e59c9 net/mlx5: Accel, Add core TLS support for the Connect-X family
Add support for the new TLS implementation of the Connect-X family.
Introduce a new compilation flag MLX5_TLS for it.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
45d3b55dc6 net/mlx5: Add crypto library to support create/destroy encryption key
Encryption key create / destroy is done via
CREATE_GENERAL_OBJECT / DESTROY_GENERAL_OBJECT commands.

To be used in downstream patches by TLS API wrappers, to configure
the TIS context with the encryption key.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
e2869fb206 net/mlx5: Kconfig, Better organize compilation flags
Always contain all acceleration functions declarations in
'accel' files, independent to the flags setting.
For this, introduce new flags CONFIG_FPGA_{IPSEC/TLS} and use stubs
where needed.

This obsoletes the need for stubs in 'fpga' files. Remove them.

Also use the new flags in Makefile, to decide whether to compile
TLS-specific or IPSEC-specific objects, or not.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Tariq Toukan
c778dd31ac net/mlx5: Accel, Expose accel wrapper for IPsec FPGA function
Do not directly call fpga version of IPsec function from main.c.
Wrap it by an accel version, and call the wrapper.

This will allow deprecating the FPGA IPsec stubs in downstream
patch.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
David S. Miller
61c2491db7 mlx5-update-2019-07-04
This series adds mlx5 support for devlink fw versions query.
 
 1) Implement the required low level firmware commands
 2) Implement the devlink knobs and callbacks for fw versions query.
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Merge tag 'mlx5-updates-2019-07-04-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-update-2019-07-04

This series adds mlx5 support for devlink fw versions query.

1) Implement the required low level firmware commands
2) Implement the devlink knobs and callbacks for fw versions query.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:24:27 -07:00
Sebastian Andrzej Siewior
f654e67670 nfp: Use spinlock_t instead of struct spinlock
For spinlocks the type spinlock_t should be used instead of "struct
spinlock".

Use spinlock_t for spinlock's definition.

Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: oss-drivers@netronome.com
Cc: netdev@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:17:44 -07:00
Ilias Apalodimas
cd1973a921 net: netsec: Sync dma for device on buffer allocation
Quoting Arnd,

We have to do a sync_single_for_device /somewhere/ before the
buffer is given to the device. On a non-cache-coherent machine with
a write-back cache, there may be dirty cache lines that get written back
after the device DMA's data into it (e.g. from a previous memset
from before the buffer got freed), so you absolutely need to flush any
dirty cache lines on it first.

Since the coherency is configurable in this device make sure we cover
all configurations by explicitly syncing the allocated buffer for the
device before refilling it's descriptors

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:41:24 -07:00
Peng Li
8929515246 net: hns3: set maximum length to resp_data_len for exceptional case
If HCLGE_MBX_MAX_RESP_DATA_SIZE > HCLGE_MBX_MAX_RESP_DATA_SIZE,
the memcpy will cause out of memory. So this patch just set
resp_data_len to the maximum length for this case.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Yonglong Liu
b9a8f88373 net: hns3: bitwise operator should use unsigned type
There are some bitwise operator used signed type, this patch fixes
them with unsigned type.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Peng Li
354d0fab64 net: hns3: add default value for tc_size and tc_offset
This patch adds default value for tc_size and tc_offset, or it may
get random value and used later.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Weihang Li
0bae5cf25d net: hns3: check msg_data before memcpy in hclgevf_send_mbx_msg
The value of msg_data may be NULL in some cases, which will cause
errors reported by some compiler.

So this patch adds a check to fix it.

Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Peng Li
c09ba48456 net: hns3: set default value for param "type" in hclgevf_bind_ring_to_vector
The value of param type is always not changed in
hclgevf_bind_ring_to_vector, move the assignment to
front of "for {}" can reduce the redundant assignment.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Peng Li
9e1511fb80 net: hns3: add all IMP return code
Currently, the HNS3 driver just defines part of IMP return code,
This patch supplements all the remaining IMP return code, and adds
a function to convert this code to the error number.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Jian Shen
49b1255603 net: hns3: fix port capbility updating issue
Currently, the driver queries the media port information, and
updates the port capability periodically. But it sets an error
mac->speed_type value, which stops update port capability.

Fixes: 88d10bd6f7 ("net: hns3: add support for multiple media type")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Jian Shen
fb89629f2e net: hns3: fix flow control configure issue for fibre port
Flow control autoneg is unsupported for fibre port. It takes no
effect for flow control when restart autoneg. This patch fixes
it, return -EOPNOTSUPP when user tries to enable flow control
autoneg.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Jian Shen
2d5066fc17 net: hns3: enable broadcast promisc mode when initializing VF
For revision 0x20, the broadcast promisc is enabled by firmware,
it's unnecessary to enable it when initializing VF.

For revision 0x21, it's necessary to enable broadcast promisc mode
when initializing or re-initializing VF, otherwise, it will be
unable to send and receive promisc packets.

Fixes: f01f5559ca ("net: hns3: don't allow vf to enable promisc mode")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:39:38 -07:00
Hayes Wang
ffa9fec30c r8152: set RTL8152_UNPLUG only for real disconnection
Set the flag of RTL8152_UNPLUG if and only if the device is unplugged.
Some error codes sometimes don't mean the real disconnection of usb device.
For those situations, set the flag of RTL8152_UNPLUG causes the driver skips
some flows of disabling the device, and it let the device stay at incorrect
state.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:37:32 -07:00
Shalom Toledo
72458e2794 mlxsw: spectrum_ptp: Apply the PTP shaper enable/disable logic
Apply by filling the PTP shaper parameters array.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:57 -07:00
Shalom Toledo
5fc1733897 mlxsw: spectrum: Set up PTP shaper when port status has changed
When getting port up down event (PUDE), change the PTP shaper
configuration based on hardware time stamping on/off and the port's
speed.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:57 -07:00
Shalom Toledo
eceed3b145 mlxsw: spectrum_ptp: Enable/disable PTP shaper on a port when getting HWTSTAMP on/off
In order to get more accurate hardware time stamping, the driver needs to
enable PTP shaper on the port, for speeds lower than 40 Gbps.

Enable the PTP shaper on the port when the user turns on the hardware
time stamping, and disable it when the user turns off the hardware time
stamping.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:57 -07:00
Shalom Toledo
4ae5cc42d3 mlxsw: spectrum: Add new operation for getting the port's speed
New operation for getting the port's speed as part of port-type-speed
operations.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:57 -07:00
Shalom Toledo
399569cb0a mlxsw: spectrum_ptp: Set the PTP shaper parameters
Set the PTP shaper parameters during the ptp_init(). For different
speeds, there are different parameters.

When the port's speed changes and PTP shaper is enabled, the firmware
changes the ETS shaper values according to the PTP shaper parameters for
this new speed.

The PTP shaper parameters array is left empty for now, will be filled in
a follow-up patch.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:57 -07:00
Shalom Toledo
71147506a9 mlxsw: reg: Add QoS PTP Shaper Configuration Register
The QPSC allows advanced configuration of the PTP shapers.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:57 -07:00
Shalom Toledo
ea7bb579fc mlxsw: spectrum: Add note about the PTP shaper
Add note about disabling the PTP shaper when calling to
mlxsw_sp_port_ets_maxrate_set().

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:57 -07:00
Shalom Toledo
12f0e2e9ad mlxsw: reg: Add ptps field in QoS ETS Element Configuration Register
The PTP Shaper field is used for enabling and disabling of port-rate based
shaper which is slightly lower than port rate.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:28:56 -07:00
YueHaibing
cfe261c24e net: socionext: remove set but not used variable 'pkts'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/socionext/netsec.c: In function 'netsec_clean_tx_dring':
drivers/net/ethernet/socionext/netsec.c:637:15: warning:
 variable 'pkts' set but not used [-Wunused-but-set-variable]

It is not used since commit ba2b232108 ("net: netsec: add XDP support")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:26:47 -07:00
Hariprasad Kelam
04fc71435f net: ethernet: allwinner: Remove unneeded memset
Remove unneeded memset as alloc_etherdev is using kvzalloc which uses
__GFP_ZERO flag

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:25:55 -07:00
Fuqian Huang
b82b213910 net/ethernet: using dev_get_drvdata directly
Several drivers cast a struct device pointer to a struct
platform_device pointer only to then call platform_get_drvdata().
To improve readability, these constructs can be simplified
by using dev_get_drvdata() directly.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:25:04 -07:00
Fuqian Huang
233cc605a2 net/can: using dev_get_drvdata directly
Several drivers cast a struct device pointer to a struct
platform_device pointer only to then call platform_get_drvdata().
To improve readability, these constructs can be simplified
by using dev_get_drvdata() directly.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 15:24:41 -07:00
Shay Agroskin
8338d93788 net/mlx5: Added devlink info callback
The callback is invoked using 'devlink dev info <pci>' command and returns
the running and pending firmware version of the HCA and the name of the
kernel driver.

If there is a pending firmware version (a new version is burned but the
HCA still runs with the previous) it is returned as the stored
firmware version. Otherwise, the running version is returned for this
field.

Output example:
$ devlink dev info pci/0000:00:06.0
pci/0000:00:06.0:
  driver mlx5_core
  versions:
      fixed:
        fw.psid MT_0000000009
      running:
        fw.version 16.26.0100
      stored:
        fw.version 16.26.0100

Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-04 16:43:16 -04:00
Shay Agroskin
9c86b07e30 net/mlx5: Added fw version query command
Using the MCQI and MCQS registers, we query the running and pending
fw version of the HCA.
The MCQS is queried with sequentially increasing component index, until
a component of type BOOT_IMG is found. Querying this component's version
using the MCQI register yields the running and pending fw version of the
HCA.

Querying MCQI for the pending fw version should be done only after
validating that such fw version exists. This is done my checking
'component update state' field in MCQS output.

Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-04 16:43:15 -04:00
Saeed Mahameed
e08a976a16 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Misc updates from mlx5-next branch:

1) Add the required HW definitions and structures for upcoming TLS
   support.
2) Add support for MCQI and MCQS hardware registers for fw version query.
3) Added hardware bits and structures definitions for sub-functions
4) Small code cleanup and improvement for PF pci driver.
5) Bluefield (ECPF) updates and refactoring for better E-Switch
   management on ECPF embedded CPU NIC:
   5.1) Consolidate querying eswitch number of VFs
   5.2) Register event handler at the correct E-Switch init stage
   5.3) Setup PF's inline mode and vlan pop when the ECPF is the
        E-Swtich manager ( the host PF is basically a VF ).
   5.4) Handle Vport UC address changes in switchdev mode.

6) Cleanup the rep and netdev reference when unloading IB rep.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

i# All conflicts fixed but you are still merging.
2019-07-04 16:42:59 -04:00
David S. Miller
c4cde5804d Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-07-03

The following pull-request contains BPF updates for your *net-next* tree.

There is a minor merge conflict in mlx5 due to 8960b38932 ("linux/dim:
Rename externally used net_dim members") which has been pulled into your
tree in the meantime, but resolution seems not that bad ... getting current
bpf-next out now before there's coming more on mlx5. ;) I'm Cc'ing Saeed
just so he's aware of the resolution below:

** First conflict in drivers/net/ethernet/mellanox/mlx5/core/en_main.c:

  <<<<<<< HEAD
  static int mlx5e_open_cq(struct mlx5e_channel *c,
                           struct dim_cq_moder moder,
                           struct mlx5e_cq_param *param,
                           struct mlx5e_cq *cq)
  =======
  int mlx5e_open_cq(struct mlx5e_channel *c, struct net_dim_cq_moder moder,
                    struct mlx5e_cq_param *param, struct mlx5e_cq *cq)
  >>>>>>> e5a3e259ef

Resolution is to take the second chunk and rename net_dim_cq_moder into
dim_cq_moder. Also the signature for mlx5e_open_cq() in ...

  drivers/net/ethernet/mellanox/mlx5/core/en.h +977

... and in mlx5e_open_xsk() ...

  drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c +64

... needs the same rename from net_dim_cq_moder into dim_cq_moder.

** Second conflict in drivers/net/ethernet/mellanox/mlx5/core/en_main.c:

  <<<<<<< HEAD
          int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(priv->mdev, ix));
          struct dim_cq_moder icocq_moder = {0, 0};
          struct net_device *netdev = priv->netdev;
          struct mlx5e_channel *c;
          unsigned int irq;
  =======
          struct net_dim_cq_moder icocq_moder = {0, 0};
  >>>>>>> e5a3e259ef

Take the second chunk and rename net_dim_cq_moder into dim_cq_moder
as well.

Let me know if you run into any issues. Anyway, the main changes are:

1) Long-awaited AF_XDP support for mlx5e driver, from Maxim.

2) Addition of two new per-cgroup BPF hooks for getsockopt and
   setsockopt along with a new sockopt program type which allows more
   fine-grained pass/reject settings for containers. Also add a sock_ops
   callback that can be selectively enabled on a per-socket basis and is
   executed for every RTT to help tracking TCP statistics, both features
   from Stanislav.

3) Follow-up fix from loops in precision tracking which was not propagating
   precision marks and as a result verifier assumed that some branches were
   not taken and therefore wrongly removed as dead code, from Alexei.

4) Fix BPF cgroup release synchronization race which could lead to a
   double-free if a leaf's cgroup_bpf object is released and a new BPF
   program is attached to the one of ancestor cgroups in parallel, from Roman.

5) Support for bulking XDP_TX on veth devices which improves performance
   in some cases by around 9%, from Toshiaki.

6) Allow for lookups into BPF devmap and improve feedback when calling into
   bpf_redirect_map() as lookup is now performed right away in the helper
   itself, from Toke.

7) Add support for fq's Earliest Departure Time to the Host Bandwidth
   Manager (HBM) sample BPF program, from Lawrence.

8) Various cleanups and minor fixes all over the place from many others.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-04 12:48:21 -07:00
René van Dorst
e2c746944e net: ethernet: mediatek: Fix overlapping capability bits.
Both MTK_TRGMII_MT7621_CLK and MTK_PATH_BIT are defined as bit 10.

This can causes issues on non-MT7621 devices which has the
MTK_PATH_BIT(MTK_ETH_PATH_GMAC1_RGMII) and MTK_TRGMII capability set.
The wrong TRGMII setup code can be executed. The current wrongly executed
code doesn’t do any harm on MT7623 and the TRGMII setup for the MT7623
SOC side is done in MT7530 driver So it wasn’t noticed in the test.

Move all capability bits in one enum so that they are all unique and easy
to expand in the future.

Because mtk_eth_path enum is merged in to mkt_eth_capabilities, the
variable path value is no longer between 0 to number of paths,
mtk_eth_path_name can’t be used anymore in this form. Convert the
mtk_eth_path_name array to a function to lookup the pathname.

The old code walked thru the mtk_eth_path enum, which is also merged
with mkt_eth_capabilities. Expand array mtk_eth_muxc so it can store the
name and capability bit of the mux. Convert the code so it can walk thru
the mtk_eth_muxc array.

Fixes: 8efaa653a8 ("net: ethernet: mediatek: Add MT7621 TRGMII mode support")
Signed-off-by: René van Dorst <opensource@vdorst.com>

v1->v2:
- Move all capability bits in one enum, suggested by Willem de Bruijn
- Convert the mtk_eth_path_name array to a function to lookup the pathname
- Expand array mtk_eth_muxc so it can also store the name and capability
  bit of the mux
- Updated commit message

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-04 12:37:10 -07:00
Weifeng Voon
c3efed5ad1 net: stmmac: Enable dwmac4 jumbo frame more than 8KiB
Enable GMAC v4.xx and beyond to support 16KiB buffer.

Signed-off-by: Weifeng Voon <weifeng.voon@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-04 12:33:12 -07:00
Vincent Bernat
07a4ddec3c bonding: add an option to specify a delay between peer notifications
Currently, gratuitous ARP/ND packets are sent every `miimon'
milliseconds. This commit allows a user to specify a custom delay
through a new option, `peer_notif_delay'.

Like for `updelay' and `downdelay', this delay should be a multiple of
`miimon' to avoid managing an additional work queue. The configuration
logic is copied from `updelay' and `downdelay'. However, the default
value cannot be set using a module parameter: Netlink or sysfs should
be used to configure this feature.

When setting `miimon' to 100 and `peer_notif_delay' to 500, we can
observe the 500 ms delay is respected:

    20:30:19.354693 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28
    20:30:19.874892 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28
    20:30:20.394919 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28
    20:30:20.914963 ARP, Request who-has 203.0.113.10 tell 203.0.113.10, length 28

In bond_mii_monitor(), I have tried to keep the lock logic readable.
The change is due to the fact we cannot rely on a notification to
lower the value of `bond->send_peer_notif' as `NETDEV_NOTIFY_PEERS' is
only triggered once every N times, while we need to decrement the
counter each time.

iproute2 also needs to be updated to be able to specify this new
attribute through `ip link'.

Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-04 12:30:48 -07:00
Colin Ian King
2368a870d6 net: ethernet: sun: remove redundant assignment to variable err
The variable err is being assigned with a value that is never
read and it is being updated in the next statement with a new value.
The assignment is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-04 12:12:13 -07:00
Colin Ian King
a51df9f8da gve: fix -ENOMEM null check on a page allocation
Currently the check to see if a page is allocated is incorrect
and is checking if the pointer page is null, not *page as
intended.  Fix this.

Addresses-Coverity: ("Dereference before null check")
Fixes: f5cedc84a3 ("gve: Add transmit and receive support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 13:53:07 -07:00
Cong Wang
9d1bc24b52 bonding: validate ip header before check IPPROTO_IGMP
bond_xmit_roundrobin() checks for IGMP packets but it parses
the IP header even before checking skb->protocol.

We should validate the IP header with pskb_may_pull() before
using iph->protocol.

Reported-and-tested-by: syzbot+e5be16aa39ad6e755391@syzkaller.appspotmail.com
Fixes: a2fd940f4c ("bonding: fix broken multicast with round-robin mode")
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 13:26:12 -07:00
Parav Pandit
dd28087c14 net/mlx5: Refactor mlx5_esw_query_functions for modularity
Functions change event output data size changes when functions other
than VFs will be enabled in HCA CAP.
With current API, multiple callers needs to align, calculate accurate
size of the output data depending on number on non VF functions enabled
in the device.
Instead of duplicating such math at multiple places, refactor
mlx5_esw_query_functions() to return raw output allocated by itself.

Caller must free the allocated memory using kvfree() as described in the
function comment section.
This hides calcuation within mlx5_esw_query_functions() and provides
simpler API.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-03 12:50:42 -07:00
Parav Pandit
7e736f9ae3 net/mlx5: E-Switch prepare functions change handler to be modular
Eswitch function change handler will service multiple type of events for
VFs and non VF functions update.
Hence, introduce and use the helper function
esw_vfs_changed_event_handler() for handling change in num VFs to improve
the code readability.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-03 12:50:42 -07:00
Parav Pandit
2752b82316 net/mlx5: Introduce and use mlx5_eswitch_get_total_vports()
Instead MLX5_TOTAL_VPORTS, use mlx5_eswitch_get_total_vports().
mlx5_eswitch_get_total_vports() in subsequent patch accounts for SF
vports as well.
Expanding MLX5_TOTAL_VPORTS macro would require exposing SF internals to
more generic vport.h header file. Such exposure is not desired.
Hence a mlx5_eswitch_get_total_vports() is introduced.

Given that mlx5_eswitch_get_total_vports() API wants to work on const
mlx5_core_dev*, change its helper functions also to accept const *dev.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-03 12:50:42 -07:00
Yonglong Liu
0d581ba311 net: hns: add support for vlan TSO
The hip07 chip support vlan TSO, this patch adds NETIF_F_TSO
and NETIF_F_TSO6 flags to vlan_features to improve the
performance after adding vlan to the net ports.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 11:48:49 -07:00
Colin Ian King
2559d7c4dd qlcnic: remove redundant assignment to variable err
The variable err is being initialized with a value that is never
read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 11:33:55 -07:00
Colin Ian King
b70d846cf4 atl1c: remove redundant assignment to variable tpd_req
The variable tpd_req is being initialized with a value that is never
read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 11:32:39 -07:00
Hayes Wang
9fae54186c r8152: move calling r8153b_rx_agg_chg_indicate()
r8153b_rx_agg_chg_indicate() needs to be called after enabling TX/RX and
before calling rxdy_gated_en(tp, false). Otherwise, the change of the
settings of RX aggregation wouldn't work.

Besides, adjust rtl8152_set_coalesce() for the same reason. If
rx_coalesce_usecs is changed, restart TX/RX to let the setting work.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 11:31:33 -07:00
Sudarsana Reddy Kalluru
cedeac9df4 qed: Add support for Timestamping the unicast PTP packets.
This patch adds driver changes to detect/timestamp the unicast PTP packets.

Changes from previous version:
-------------------------------
v2: Defined a macro for unicast ptp param mask.

Please consider applying this to "net-next".

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 11:30:41 -07:00
Catherine Sullivan
3c13ce74b6 gve: Fix u64_stats_sync to initialize start
u64_stats_fetch_begin needs to initialize start.

Signed-off-by: Catherine Sullivan <csully@google.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 11:27:46 -07:00
Mahesh Bandewar
d62962b37c loopback: fix lockdep splat
dev_init_scheduler() and dev_activate() expect the caller to
hold RTNL. Since we don't want blackhole device to be initialized
per ns, we are initializing at init.

[    3.855027] Call Trace:
[    3.855034]  dump_stack+0x67/0x95
[    3.855037]  lockdep_rcu_suspicious+0xd5/0x110
[    3.855044]  dev_init_scheduler+0xe3/0x120
[    3.855048]  ? net_olddevs_init+0x60/0x60
[    3.855050]  blackhole_netdev_init+0x45/0x6e
[    3.855052]  do_one_initcall+0x6c/0x2fa
[    3.855058]  ? rcu_read_lock_sched_held+0x8c/0xa0
[    3.855066]  kernel_init_freeable+0x1e5/0x288
[    3.855071]  ? rest_init+0x260/0x260
[    3.855074]  kernel_init+0xf/0x180
[    3.855076]  ? rest_init+0x260/0x260
[    3.855078]  ret_from_fork+0x24/0x30

Fixes: 4de83b88c6 ("loopback: create blackhole net device similar to loopack.")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03 11:24:38 -07:00
Yishai Hadas
4e0e2ea188 net/mlx5: Report EQE data upon CQ completion
Report EQE data upon CQ completion to let upper layers use this data.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 21:00:20 +03:00
Yishai Hadas
70a43d3fd4 net/mlx5: Report a CQ error event only when a handler was set
Report a CQ error event only when a handler was set.

This enables mlx5_ib to not set a handler upon CQ creation and use some
other mechanism to get this event as of other events by the
mlx5_eq_notifier_register API.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:59:40 +03:00
Yishai Hadas
38164b7719 net/mlx5: mlx5_core_create_cq() enhancements
Enhance mlx5_core_create_cq() to get the command out buffer from the
callers to let them use the output.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:59:32 +03:00
Yishai Hadas
c0670781f5 net/mlx5: Expose the API to register for ANY event
Expose the API to register for ANY event, mlx5_ib will be able to use
this functionality for its needs.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:56:29 +03:00
Yishai Hadas
b9a7ba5562 net/mlx5: Use event mask based on device capabilities
Use the reported device capabilities for the supported user events (i.e.
affiliated and un-affiliated) to set the EQ mask.

As the event mask can be up to 256 defined by 4 entries of u64 change
the applicable code to work accordingly.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:55:45 +03:00
Yishai Hadas
1d49ce1e05 net/mlx5: Fix mlx5_core_destroy_cq() error flow
The firmware command to destroy a CQ might fail when the object is
referenced by other object and the ref count is managed by the firmware.

To enable a second successful destruction post the first failure need to
change  mlx5_eq_del_cq() to be a void function.

As an error in mlx5_eq_del_cq() is quite fatal from the option to
recover, a debug message inside it should be good enougth and it was
changed to be void.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:54:57 +03:00
Thomas Gleixner
3419240495 Merge branch 'timers/vdso' into timers/core
so the hyper-v clocksource update can be applied.
2019-07-03 10:50:21 +02:00
Petr Machata
dbcdb61aaf mlxsw: spectrum_ptp: Fix validation in mlxsw_sp1_ptp_packet_finish()
Before mlxsw_sp1_ptp_packet_finish() sends the packet back, it validates
whether the corresponding port is still valid. However the condition is
incorrect: when mlxsw_sp_port == NULL, the code dereferences the port to
compare it to skb->dev.

The condition needs to check whether the port is present and skb->dev still
refers to that port (or else is NULL). If that does not hold, bail out.
Add a pair of parentheses to fix the condition.

Fixes: d92e4e6e33 ("mlxsw: spectrum: PTP: Support timestamping on Spectrum-1")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 15:31:20 -07:00
Heiner Kallweit
c782e204f7 r8169: add random MAC address fallback
It was reported that the GPD MicroPC is broken in a way that no valid
MAC address can be read from the network chip. The vendor driver deals
with this by assigning a random MAC address as fallback. So let's do
the same.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 15:28:19 -07:00
Heiner Kallweit
7424edbb55 Revert "r8169: improve handling VLAN tag"
This reverts commit 759d095741.

The patch was based on a misunderstanding. As Al Viro pointed out [0]
it's simply wrong on big endian. So let's revert it.

[0] https://marc.info/?t=156200975600004&r=1&w=2

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 15:27:33 -07:00
Phong Tran
78226f6eaa net: usb: asix: init MAC address buffers
This is for fixing bug KMSAN: uninit-value in ax88772_bind

Tested by
https://groups.google.com/d/msg/syzkaller-bugs/aFQurGotng4/eB_HlNhhCwAJ

Reported-by: syzbot+8a3fc6674bbc3978ed4e@syzkaller.appspotmail.com

syzbot found the following crash on:

HEAD commit:    f75e4cfe kmsan: use kmsan_handle_urb() in urb.c
git tree:       kmsan
console output: https://syzkaller.appspot.com/x/log.txt?x=136d720ea00000
kernel config:
https://syzkaller.appspot.com/x/.config?x=602468164ccdc30a
dashboard link:
https://syzkaller.appspot.com/bug?extid=8a3fc6674bbc3978ed4e
compiler:       clang version 9.0.0 (/home/glider/llvm/clang
06d00afa61eef8f7f501ebdb4e8612ea43ec2d78)
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=12788316a00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=120359aaa00000

==================================================================
BUG: KMSAN: uninit-value in is_valid_ether_addr
include/linux/etherdevice.h:200 [inline]
BUG: KMSAN: uninit-value in asix_set_netdev_dev_addr
drivers/net/usb/asix_devices.c:73 [inline]
BUG: KMSAN: uninit-value in ax88772_bind+0x93d/0x11e0
drivers/net/usb/asix_devices.c:724
CPU: 0 PID: 3348 Comm: kworker/0:2 Not tainted 5.1.0+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x191/0x1f0 lib/dump_stack.c:113
  kmsan_report+0x130/0x2a0 mm/kmsan/kmsan.c:622
  __msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:310
  is_valid_ether_addr include/linux/etherdevice.h:200 [inline]
  asix_set_netdev_dev_addr drivers/net/usb/asix_devices.c:73 [inline]
  ax88772_bind+0x93d/0x11e0 drivers/net/usb/asix_devices.c:724
  usbnet_probe+0x10f5/0x3940 drivers/net/usb/usbnet.c:1728
  usb_probe_interface+0xd66/0x1320 drivers/usb/core/driver.c:361
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_set_configuration+0x30dc/0x3750 drivers/usb/core/message.c:2027
  generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210
  usb_probe_device+0x14c/0x200 drivers/usb/core/driver.c:266
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_new_device+0x23e5/0x2ff0 drivers/usb/core/hub.c:2534
  hub_port_connect drivers/usb/core/hub.c:5089 [inline]
  hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
  port_event drivers/usb/core/hub.c:5350 [inline]
  hub_event+0x48d1/0x7290 drivers/usb/core/hub.c:5432
  process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269
  process_scheduled_works kernel/workqueue.c:2331 [inline]
  worker_thread+0x189c/0x2460 kernel/workqueue.c:2417
  kthread+0x4b5/0x4f0 kernel/kthread.c:254
  ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 15:24:48 -07:00
Martin Blumenstingl
cc5e92c223 net: stmmac: make "snps,reset-delays-us" optional again
Commit 760f1dc295 ("net: stmmac: add sanity check to
device_property_read_u32_array call") introduced error checking of the
device_property_read_u32_array() call in stmmac_mdio_reset().
This results in the following error when the "snps,reset-delays-us"
property is not defined in devicetree:
  invalid property snps,reset-delays-us

This sanity check made sense until commit 84ce4d0f9f ("net: stmmac:
initialize the reset delay array") ensured that there are fallback
values for the reset delay if the "snps,reset-delays-us" property is
absent. That was at the cost of making that property mandatory though.

Drop the sanity check for device_property_read_u32_array() and thus make
the "snps,reset-delays-us" property optional again (avoiding the error
message while loading the stmmac driver with a .dtb where the property
is absent).

Fixes: 760f1dc295 ("net: stmmac: add sanity check to device_property_read_u32_array call")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 15:23:43 -07:00
Eric Dumazet
b8bd72d317 bonding/main: fix NULL dereference in bond_select_active_slave()
A bonding master can be up while best_slave is NULL.

[12105.636318] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[12105.638204] mlx4_en: eth1: Linkstate event 1 -> 1
[12105.648984] IP: bond_select_active_slave+0x125/0x250
[12105.653977] PGD 0 P4D 0
[12105.656572] Oops: 0000 [#1] SMP PTI
[12105.660487] gsmi: Log Shutdown Reason 0x03
[12105.664620] Modules linked in: kvm_intel loop act_mirred uhaul vfat fat stg_standard_ftl stg_megablocks stg_idt stg_hdi stg elephant_dev_num stg_idt_eeprom w1_therm wire i2c_mux_pca954x i2c_mux mlx4_i2c i2c_usb cdc_acm ehci_pci ehci_hcd i2c_iimc mlx4_en mlx4_ib ib_uverbs ib_core mlx4_core [last unloaded: kvm_intel]
[12105.685686] mlx4_core 0000:03:00.0: dispatching link up event for port 2
[12105.685700] mlx4_en: eth2: Linkstate event 2 -> 1
[12105.685700] mlx4_en: eth2: Link Up (linkstate)
[12105.724452] Workqueue: bond0 bond_mii_monitor
[12105.728854] RIP: 0010:bond_select_active_slave+0x125/0x250
[12105.734355] RSP: 0018:ffffaf146a81fd88 EFLAGS: 00010246
[12105.739637] RAX: 0000000000000003 RBX: ffff8c62b03c6900 RCX: 0000000000000000
[12105.746838] RDX: 0000000000000000 RSI: ffffaf146a81fd08 RDI: ffff8c62b03c6000
[12105.754054] RBP: ffffaf146a81fdb8 R08: 0000000000000001 R09: ffff8c517d387600
[12105.761299] R10: 00000000001075d9 R11: ffffffffaceba92f R12: 0000000000000000
[12105.768553] R13: ffff8c8240ae4800 R14: 0000000000000000 R15: 0000000000000000
[12105.775748] FS:  0000000000000000(0000) GS:ffff8c62bfa40000(0000) knlGS:0000000000000000
[12105.783892] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[12105.789716] CR2: 0000000000000000 CR3: 0000000d0520e001 CR4: 00000000001626f0
[12105.796976] Call Trace:
[12105.799446]  [<ffffffffac31d387>] bond_mii_monitor+0x497/0x6f0
[12105.805317]  [<ffffffffabd42643>] process_one_work+0x143/0x370
[12105.811225]  [<ffffffffabd42c7a>] worker_thread+0x4a/0x360
[12105.816761]  [<ffffffffabd48bc5>] kthread+0x105/0x140
[12105.821865]  [<ffffffffabd42c30>] ? rescuer_thread+0x380/0x380
[12105.827757]  [<ffffffffabd48ac0>] ? kthread_associate_blkcg+0xc0/0xc0
[12105.834266]  [<ffffffffac600241>] ret_from_fork+0x51/0x60

Fixes: e2a7420df2 ("bonding/main: convert to using slave printk macros")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: John Sperbeck <jsperbeck@google.com>
Cc: Jarod Wilson <jarod@redhat.com>
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 15:14:48 -07:00
Andreas Steinmetz
7d8b16b9fa macsec: fix checksumming after decryption
Fix checksumming after decryption.

Signed-off-by: Andreas Steinmetz <ast@domdv.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 14:12:29 -07:00
Andreas Steinmetz
095c02da80 macsec: fix use-after-free of skb during RX
Fix use-after-free of skb when rx_handler returns RX_HANDLER_PASS.

Signed-off-by: Andreas Steinmetz <ast@domdv.de>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 14:12:29 -07:00
René van Dorst
cce581a0c3 net: ethernet: mediatek: Allow non TRGMII mode with MT7621 DDR2 devices
No reason to error out on a MT7621 device with DDR2 memory when non
TRGMII mode is selected.
Only MT7621 DDR2 clock setup is not supported for TRGMII mode.
But non TRGMII mode doesn't need any special clock setup.

Signed-off-by: René van Dorst <opensource@vdorst.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 14:05:44 -07:00
Xue Chaojing
83b6a85bbb hinic: remove standard netdev stats
This patch removes standard netdev stats in ethtool -S.

Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 11:12:13 -07:00
Jose Abreu
b432bdb6c6 net: stmmac: Re-word Kconfig entry
We support many speeds and it doesn't make much sense to list them all
in the Kconfig. Let's just call it Multi-Gigabit.

Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-02 11:06:12 -07:00
Catherine Sullivan
e5b845dc79 gve: Add ethtool support
Add support for the following ethtool commands:

ethtool -s|--change devname [msglvl N] [msglevel type on|off]
ethtool -S|--statistics devname
ethtool -i|--driver devname
ethtool -l|--show-channels devname
ethtool -L|--set-channels devname
ethtool -g|--show-ring devname
ethtool --reset devname

Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: Sagi Shahar <sagis@google.com>
Signed-off-by: Jon Olson <jonolson@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Luigi Rizzo <lrizzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:36:35 -07:00
Catherine Sullivan
9e5f7d26a4 gve: Add workqueue and reset support
Add support for the workqueue to handle management interrupts and
support for resets.

Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: Sagi Shahar <sagis@google.com>
Signed-off-by: Jon Olson <jonolson@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Luigi Rizzo <lrizzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:36:35 -07:00
Catherine Sullivan
f5cedc84a3 gve: Add transmit and receive support
Add support for passing traffic.

Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: Sagi Shahar <sagis@google.com>
Signed-off-by: Jon Olson <jonolson@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Luigi Rizzo <lrizzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:36:35 -07:00
Catherine Sullivan
893ce44df5 gve: Add basic driver framework for Compute Engine Virtual NIC
Add a driver framework for the Compute Engine Virtual NIC that will be
available in the future.

At this point the only functionality is loading the driver.

Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: Sagi Shahar <sagis@google.com>
Signed-off-by: Jon Olson <jonolson@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Luigi Rizzo <lrizzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:36:35 -07:00
Mahesh Bandewar
4de83b88c6 loopback: create blackhole net device similar to loopack.
Create a blackhole net device that can be used for "dead"
dst entries instead of loopback device. This blackhole device differs
from loopback in few aspects: (a) It's not per-ns. (b)  MTU on this
device is ETH_MIN_MTU (c) The xmit function is essentially kfree_skb().
and (d) since it's not registered it won't have ifindex.

Lower MTU effectively make the device not pass the MTU check during
the route check when a dst associated with the skb is dead.

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:34:46 -07:00
Hayes Wang
13e04fbf0b r8152: fix the setting of detecting the linking change for runtime suspend
1. Rename r8153b_queue_wake() to r8153_queue_wake().

2. Correct the setting. The enable bit should be 0xd38c bit 0. Besides,
   the 0xd38a bit 0 and 0xd398 bit 8 have to be cleared for both enabled
   and disabled.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:31:57 -07:00
Hariprasad Kelam
8909783cb5 net: ethernet: broadcom: bcm63xx_enet: Remove unneeded memset
Remove unneeded memset as alloc_etherdev is using kvzalloc which uses
__GFP_ZERO flag

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:29:19 -07:00
Ilias Apalodimas
ba2b232108 net: netsec: add XDP support
The interface only supports 1 Tx queue so locking is introduced on
the Tx queue if XDP is enabled to make sure .ndo_start_xmit and
.ndo_xdp_xmit won't corrupt Tx ring

- Performance (SMMU off)

Benchmark   XDP_SKB     XDP_DRV
xdp1        291kpps     344kpps
rxdrop      282kpps     342kpps

- Performance (SMMU on)
Benchmark   XDP_SKB     XDP_DRV
xdp1        167kpps     324kpps
rxdrop      164kpps     323kpps

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:27:08 -07:00
Ilias Apalodimas
5c67bf0ec4 net: netsec: Use page_pool API
Use page_pool and it's DMA mapping capabilities for Rx buffers instead
of netdev/napi_alloc_frag()

Although this will result in a slight performance penalty on small sized
packets (~10%) the use of the API will allow to easily add XDP support.
The penalty won't be visible in network testing i.e ipef/netperf etc, it
only happens during raw packet drops.
Furthermore we intend to add recycling capabilities on the API
in the future. Once the recycling is added the performance penalty will
go away.
The only 'real' penalty is the slightly increased memory usage, since we
now allocate a page per packet instead of the amount of bytes we need +
skb metadata (difference is roughly 2kb per packet).
With a minimum of 4BG of RAM on the only SoC that has this NIC the
extra memory usage is negligible (a bit more on 64K pages)

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:27:08 -07:00
Cong Wang
d39d714969 idr: introduce idr_for_each_entry_continue_ul()
Similarly, other callers of idr_get_next_ul() suffer the same
overflow bug as they don't handle it properly either.

Introduce idr_for_each_entry_continue_ul() to help these callers
iterate from a given ID.

cls_flower needs more care here because it still has overflow when
does arg->cookie++, we have to fold its nested loops into one
and remove the arg->cookie++.

Fixes: 01683a1469 ("net: sched: refactor flower walk to iterate over idr")
Fixes: 12d6066c3b ("net/mlx5: Add flow counters idr")
Reported-by: Li Shuang <shuali@redhat.com>
Cc: Davide Caratti <dcaratti@redhat.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Cc: Chris Mi <chrism@mellanox.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Tested-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:15:46 -07:00
Taehee Yoo
7c31e54aee vxlan: do not destroy fdb if register_netdevice() is failed
__vxlan_dev_create() destroys FDB using specific pointer which indicates
a fdb when error occurs.
But that pointer should not be used when register_netdevice() fails because
register_netdevice() internally destroys fdb when error occurs.

This patch makes vxlan_fdb_create() to do not link fdb entry to vxlan dev
internally.
Instead, a new function vxlan_fdb_insert() is added to link fdb to vxlan
dev.

vxlan_fdb_insert() is called after calling register_netdevice().
This routine can avoid situation that ->ndo_uninit() destroys fdb entry
in error path of register_netdevice().
Hence, error path of __vxlan_dev_create() routine can have an opportunity
to destroy default fdb entry by hand.

Test command
    ip link add bonding_masters type vxlan id 0 group 239.1.1.1 \
	    dev enp0s9 dstport 4789

Splat looks like:
[  213.392816] kasan: GPF could be caused by NULL-ptr deref or user memory access
[  213.401257] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[  213.402178] CPU: 0 PID: 1414 Comm: ip Not tainted 5.2.0-rc5+ #256
[  213.402178] RIP: 0010:vxlan_fdb_destroy+0x120/0x220 [vxlan]
[  213.402178] Code: df 48 8b 2b 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 4c 8b 63 08 48 b8 00 00 00 00 00 fc d
[  213.402178] RSP: 0018:ffff88810cb9f0a0 EFLAGS: 00010202
[  213.402178] RAX: dffffc0000000000 RBX: ffff888101d4a8c8 RCX: 0000000000000000
[  213.402178] RDX: 1bd5a00000000040 RSI: ffff888101d4a8c8 RDI: ffff888101d4a8d0
[  213.402178] RBP: 0000000000000000 R08: fffffbfff22b72d9 R09: 0000000000000000
[  213.402178] R10: 00000000ffffffef R11: 0000000000000000 R12: dead000000000200
[  213.402178] R13: ffff88810cb9f1f8 R14: ffff88810efccda0 R15: ffff88810efccda0
[  213.402178] FS:  00007f7f6621a0c0(0000) GS:ffff88811b000000(0000) knlGS:0000000000000000
[  213.402178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  213.402178] CR2: 000055746f0807d0 CR3: 00000001123e0000 CR4: 00000000001006f0
[  213.402178] Call Trace:
[  213.402178]  __vxlan_dev_create+0x3a9/0x7d0 [vxlan]
[  213.402178]  ? vxlan_changelink+0x740/0x740 [vxlan]
[  213.402178]  ? rcu_read_unlock+0x60/0x60 [vxlan]
[  213.402178]  ? __kasan_kmalloc.constprop.3+0xa0/0xd0
[  213.402178]  vxlan_newlink+0x8d/0xc0 [vxlan]
[  213.402178]  ? __vxlan_dev_create+0x7d0/0x7d0 [vxlan]
[  213.554119]  ? __netlink_ns_capable+0xc3/0xf0
[  213.554119]  __rtnl_newlink+0xb75/0x1180
[  213.554119]  ? rtnl_link_unregister+0x230/0x230
[ ... ]

Fixes: 0241b83673 ("vxlan: fix default fdb entry netlink notify ordering during netdev create")
Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 19:06:02 -07:00
Petr Machata
87ee07f8e2 mlxsw: spectrum: PTP: Support ethtool get_ts_info
The get_ts_info callback is used for obtaining information about
timestamping capabilities of a network device. On Spectrum-1, implement
it to advertise the PHC and the capability to do HW timestamping, and
the supported RX and TX filters.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:35 -07:00
Petr Machata
8748642751 mlxsw: spectrum: PTP: Support SIOCGHWTSTAMP, SIOCSHWTSTAMP ioctls
The SIOCSHWTSTAMP ioctl configures HW timestamping on a given port.
Dispatch the ioctls to per-chip handler (which add to ptp_ops). Find
which PTP messages need to be timestamped and configure MTPPPC
accordingly.

The SIOCGHWTSTAMP ioctl is getter for the current configuration.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
a773c76cb8 mlxsw: spectrum: PTP: Configure PTP traps and FIFO events
Configure MTPTPT to set which message types should arrive under which
PTP trap, and MOGCR to clear the timestamp queue after its contents are
reported through PTP_ING_FIFO or PTP_EGR_FIFO.

With this configuration, PTP packets start arriving through the PTP
traps. However since timestamping is disabled by default and there is
currently no way to enable it, they will not be timestamped.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
5d23e41597 mlxsw: spectrum: PTP: Garbage-collect unmatched entries
On Spectrum-1, timestamped PTP packets and the corresponding timestamps
need to be kept in caches until both are available, at which point they are
matched up and packets forwarded as appropriate. However, not all packets
will ever see their timestamp, and not all timestamps will ever see their
packet. It is therefore necessary to dispose of such abandoned entries.

To that end, introduce a garbage collector to collect entries that have
not had their counterpart turn up within about a second. The GC
maintains a monotonously-increasing value of GC cycle. Every entry that
is put to the hash table is annotated with the GC cycle at which it
should be collected. When the GC runs, it walks the hash table, and
collects the objects according to their GC cycle annotation.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
d92e4e6e33 mlxsw: spectrum: PTP: Support timestamping on Spectrum-1
On Spectrum-1, timestamps arrive through a pair of dedicated events:
MLXSW_TRAP_ID_PTP_ING_FIFO and _EGR_FIFO. The payload delivered with
those traps is contents of the timestamp FIFO at a given port in a given
direction. Add a Spectrum-1-specific handler for these two events which
decodes the timestamps and forwards them to the PTP module.

Add a function that parses a packet, dispatching to ptp_classify_raw(),
and decodes PTP message type, domain number, and sequence ID. Add a new
mlxsw dependency on the PTP classifier.

Add helpers that can store and retrieve unmatched timestamps and SKBs to
the hash table added in a preceding patch.

Add the matching code itself: upon arrival of a timestamp or a packet,
look up the corresponding unmatched entry, and match it up. If there is
none, add a new unmatched entry. This logic is the same on ingress as on
egress.

Packets and timestamps that never matched need to be eventually disposed
of. A garbage collector added in a follow-up patch will take care of
that. Since currently all this code is turned off, no crud will
accumulate in the hash table.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
89e602ee6e mlxsw: spectrum: PTP: Disable BH when working with PHC
Up until now, the PTP hardware clock code was only invoked in the process
context (SYS_clock_adjtime -> do_clock_adjtime -> k_clock::clock_adj ->
pc_clock_adjtime -> posix_clock_operations::clock_adjtime ->
ptp_clock_info::adjtime -> mlxsw_spectrum).

In order to enable HW timestamping, which is tied into trap handling, it
will be necessary to take the clock lock from the PCI queue handler
tasklets as well.

Therefore use the _bh variants when handling the clock lock. Incidentally,
Documentation/ptp/ptp.txt recommends _irqsave variants, but that's
unnecessarily strong for our needs.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
810256cec1 mlxsw: spectrum: PTP: Add PTP initialization / finalization
Add two ptp_ops: init and fini, to initialize and finalize the PTP
subsystem. Call as appropriate from mlxsw_sp_init() and _fini().

Lay the groundwork for Spectrum-1 support. On Spectrum-1, the received
timestamped packets and their corresponding timestamps arrive
independently, and need to be matched up. Introduce the related data types
and add to struct mlxsw_sp_ptp_state the hash table that will keep the
unmatched entries.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
0714256c3d mlxsw: pci: PTP: Hook into packet transmit path
On Spectrum-1, timestamps are delivered separately from the packets, and
need to paired up. Therefore, at some point after mlxsw_sp_port_xmit()
is invoked, it is necessary to involve the chip-specific driver code to
allow it to do the necessary bookkeeping and matching.

On Spectrum-2, timestamps are delivered in CQE. For that reason,
position the point of driver involvement into mlxsw_pci_cqe_sdq_handle()
to make it hopefully easier to extend for Spectrum-2 in the future.

To tell the driver what port the packet was sent on, keep tx_info
in SKB control buffer.

Introduce a new driver core interface mlxsw_core_ptp_transmitted(), a
driver callback ptp_transmitted, and a PTP op transmitted. The callee is
responsible for taking care of releasing the SKB passed to the new
interfaces, and correspondingly have the new stub callbacks just call
dev_kfree_skb_any().

Follow-up patches will introduce the actual content into
mlxsw_sp1_ptp_transmitted() in particular.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
d7cd206dbf mlxsw: core: Add support for using SKB control buffer
The SKB control buffer is useful (and used) for bookkeeping of information
related to that SKB. Add helpers so that the mlxsw driver(s) can safely use
the buffer as well. The structure is currently empty, individual users will
add members to it as necessary.

Note that SKB allocation functions already clear the buffer, so the cleanup
is only necessary when ndo_start_xmit is called.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
aed4b57211 mlxsw: spectrum: PTP: Hook into packet receive path
When configured, the Spectrum hardware can recognize PTP packets and
trap them to the CPU using dedicated traps, PTP0 and PTP1.

One reason to get PTP packets under dedicated traps is to have a
separate policer suitable for the amount of PTP traffic expected when
switch is operated as a boundary clock. For this, add two new trap
groups, MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0 and _PTP1, and associate the
two PTP traps with these two groups.

In the driver, specifically for Spectrum-1, event PTP packets will need
to be paired up with their timestamps. Those arrive through a different
set of traps, added later in the patch set. To support this future use,
introduce a new PTP op, ptp_receive.

It is possible to configure which PTP messages should be trapped under
which PTP trap. On Spectrum systems, we will use PTP0 for event
packets (which need timestamping), and PTP1 for control packets (which
do not). Thus configure PTP0 trap with a custom callback that defers to
the ptp_receive op.

Additionally, L2 PTP packets are actually trapped through the LLDP trap,
not through any of the PTP traps. So treat the LLDP trap the same way as
the PTP0 trap. Unlike PTP traps, which are currently still disabled,
LLDP trap is active. Correspondingly, have all the implementations of
the ptp_receive op return true, which the handler treats as a signal to
forward the packet immediately.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
dadbc6bc09 mlxsw: spectrum: Add support for traps specific to Spectrum-1
On Spectrum-1, timestamps for PTP packets are delivered through queues
of ingress and egress timestamps. There are two event traps
corresponding to activity on each of those queues. This mechanism is
absent on Spectrum-2, and therefore the traps should only be registered
on Spectrum-1.

Carry a chip-specific listener array in mlxsw_sp->listeners and
listeners_count. Register listeners from that array in
mlxsw_sp_traps_init(). Add a new listener array for Spectrum-1 traps and
configure the newly-added mlxsw_sp->listeners with this array.

The listener array is empty for now, the events will be added in a later
patch.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
4b6b91ed2d mlxsw: spectrum: Extract a helper for trap registration
On Spectrum-1, timestamps for PTP packets are delivered through queues
of ingress and egress timestamps. There are two event traps
corresponding to activity on each of those queues. This mechanism is
absent on Spectrum-2, and therefore the traps should only be registered
on Spectrum-1.

Extract out of mlxsw_sp_traps_init() a generic helper,
mlxsw_sp_traps_register(), and likewise with _unregister(). The new helpers
will later be called with Spectrum-1-specific traps.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
41ce78b92e mlxsw: reg: Add Monitoring Global Configuration Register
This register serves to configure global parameters of certain
monitoring operations. The following patches will use it to configure
that when PTP timestamps are delivered through the PTP FIFO traps, the
FIFO in question is cleared as well.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
98b9028ea5 mlxsw: reg: Add Time Precision Packet Timestamping Reading
The MTPPTR is used for reading the per port PTP timestamp FIFO.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:34 -07:00
Petr Machata
4dfecb6570 mlxsw: reg: Add Monitoring Precision Time Protocol Trap Register
This register is used for configuring under which trap to deliver PTP
packets depending on type of the packet.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:33 -07:00
Petr Machata
da28e87847 mlxsw: reg: Add Monitoring Time Precision Packet Port Configuration Register
This register serves for configuration of which PTP messages should be
timestamped. This is a global configuration, despite the register name.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-01 18:58:33 -07:00
Bodong Wang
4a3929b223 net/mlx5: E-Switch, Handle UC address change in switchdev mode
When NVME device emulation mode is enabled, more than one PFs use the
same physical port. In this case, MPFS is required to program L2
addresses.

It used to rely on netdev set_rx_mode in switchdev mode, but driver
later changed to not create netdev for eswitch manager once in
switchdev mode. So, UC address event should be handled.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:31 -07:00
Bodong Wang
411ec9e0b4 net/mlx5: E-Switch, Consider host PF for inline mode and vlan pop
When ECPF is the eswitch manager, host PF is treated like other VFs.
Driver should do the same for inline mode and vlan pop.

Add new iterators to include host PF if ECPF is the eswitch manager.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:31 -07:00
Bodong Wang
db68cc569e net/mlx5: E-Switch, Use iterator for vlan and min-inline setups
Use the defined iterators to traversal VF reps/vport. Also, rely on
num of VFs rather than the counter of enabled vports as PF will also
be enabled from ECPF side, and the counter will be different from
num of VFs.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:31 -07:00
Bodong Wang
16fff98a7e net/mlx5: E-Switch, Reg/unreg function changed event at correct stage
When driver is doing eswitch mode change, it's critical to keep number
of enabled VFs unchanged. However, it can be changed on the fly once
function changed event is registered.

To remove this uncertainty, function changed event should not be
registered before all setups, and first be unregistered before all
cleanups. Wrap this functionality together with vport event handler.

Fixes: 61fc880839e6 ("net/mlx5: E-Switch, Handle representors creation in handler context")
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:31 -07:00
Bodong Wang
062f4bf4aa net/mlx5: E-Switch, Consolidate eswitch function number of VFs
Enabled number of VFs is key for eswich manager to do flow steering
initialization and vport configurations. However, the number of
enabled VFs may come from two sources as below.

PF: num of VFs is provided by enabled SR-IOV of itself.
ECPF: num of VFs is provided by enabled SR-IOV from its peer PF. And
      SR-IOV can't be enabled from ECPF itself.

Current driver handles the two cases in different stages and passing
the number of enabled VFs among a large scope of internal functions.
It is usually hard to find out where is the real number of VFs from
due to layers of argument pass-in.

This patch consolidated that number from the entry point of doing
eswitch setup, and maintained a copy so that eswitch functions can
refer to it directly.

Eswitch driver shall always use this number when referring to enabled
number of VFs, don't use other numbers such as from SR-IOV.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:31 -07:00
Bodong Wang
f6455de0b0 net/mlx5: E-Switch, Refactor eswitch SR-IOV interface
Devlink eswitch mode is not necessarily related to SR-IOV, e.g, ECPF
can be at offload mode when SR-IOV is not enabled.

Rename the interface and eswitch mode names to decouple from SR-IOV,
and cleanup eswitch messages accordingly.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
e1d974d03e net/mlx5: Handle host PF vport mac/guid for ECPF
When ECPF is eswitch manager, it has the privilege to query and
configure the mac and node guid of host PF.

While vport number of host PF is 0, the vport command should be
issued with other_vport set in this case as the cmd is issued by
ECPF vport(0xfffe).

Add a specific function to query own vport mac. Low level functions
are used by vport manager to query/modify any vport mac and node guid.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
5f5d2536be net/mlx5: E-Switch, Use correct flags when configuring vlan
Before the offending commit, vlan will be configured if either vlan
or qos is set. After the change with new set flags, function callers
should provide flags accordingly.

Fixes: e33dfe316c ("net/mlx5: E-Switch, Allow fine tuning of eswitch vport push/pop vlan")
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Parav Pandit
d886aba677 net/mlx5: Reduce dependency on enabled_vfs counter and num_vfs
While enabling SR-IOV, PCI core already checks that if SR-IOV is already
enabled, it returns failure error code.
Hence, remove such duplicate check from mlx5_core driver.

While at it, make mlx5_device_disable_sriov() to perform cleanup of VFs in
reverse order of mlx5_device_enable_sriov().

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
5ccf2770e8 net/mlx5: Don't handle VF func change if host PF is disabled
When ECPF eswitch manager is at offloads mode, it monitors functions
changed event from host PF side and acts according to the number of
VFs enabled/disabled.

As ECPF and host PF work in two independent hosts, it's possible that
host PF OS reboots but ECPF system is still kept on and continues
monitoring events from host PF. When kernel from host PF side is
booting, PCI iov driver does sriov_init and compute_max_vf_buses by
iterating over all valid num of VFs. This triggers FLR and generates
functions changed events, even though host PF HCA is not enabled at
this time. However, ECPF is not aware of this information, and still
handles these events as usual. ECPF system will see massive number of
reps are created, but destroyed immediately once creation finished.

To eliminate this noise, a bit is added to host parameter context to
indicate host PF is disabled. ECPF will not handle the VF changed
event if this bit is set.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Parav Pandit
7e26dac281 net/mlx5: Limit scope of mlx5_get_next_phys_dev() to PCI PF devices
As mlx5_get_next_phys_dev is used only for PCI PF devices use case,
limit it to search only for PCI devices.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Parav Pandit
d22663edac net/mlx5: Move pci status reg access mutex to mlx5_pci_init
mlx5_pci_init() performs pci specific initialization of the
mlx5_core_dev struct.
Hence move pci_status_mutex to pci initialization routine
mlx5_pci_init().
This allows reusing mlx5_mdev_init() to non PCI devices.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Huy Nguyen
386e75af99 net/mlx5: Rename mlx5_pci_dev_type to mlx5_coredev_type
Rename mlx5_pci_dev_type to mlx5_coredev_type to distinguish different mlx5
device types.

mlx5_coredev_type represents mlx5_core_dev instance type. Hence keep
mlx5_coredev_type in mlx5_core_dev structure.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
2f69e591e4 {IB, net}/mlx5: E-Switch, Use index of rep for vport to IB port mapping
In the single IB device mode, the mapping between vport number and
rep relies on a counter. However for dynamic vport allocation, it is
desired to keep consistent map of eswitch vport and IB port.

Hence, simplify code to remove the free running counter and instead
use the available vport index during load/unload sequence from the
eswitch.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Suggested-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
d6518db278 net/mlx5: E-Switch, Use vport index when init rep
Driver is referring to the array index when doing rep initialization,
using vport is confusing as it's normally interpreted as vport number.

This patch doesn't change any functionality.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Kalle Valo
5adcdab6ae Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 5.3. Major changes:

ath10k

* fixes for SDIO support

* add support for firmware logging via WMI
2019-07-01 22:23:11 +03:00
David S. Miller
954a5a0294 mlx5e-updates-2019-06-28
This series adds some misc updates for mlx5e driver
 
 1) Allow adding the same mac more than once in MPFS table
 2) Move to HW checksumming advertising
 3) Report netdevice MPLS features
 4) Correct physical port name of the PF representor
 5) Reduce stack usage in mlx5_eswitch_termtbl_create
 6) Refresh TIR improvement for representors
 7) Expose same physical switch_id for all representors
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Merge tag 'mlx5e-updates-2019-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5e-updates-2019-06-28

This series adds some misc updates for mlx5e driver

1) Allow adding the same mac more than once in MPFS table
2) Move to HW checksumming advertising
3) Report netdevice MPLS features
4) Correct physical port name of the PF representor
5) Reduce stack usage in mlx5_eswitch_termtbl_create
6) Refresh TIR improvement for representors
7) Expose same physical switch_id for all representors
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-30 18:41:13 -07:00
David S. Miller
11697cfc71 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2019-06-28

This series contains a smorgasbord of updates to many of the Intel
drivers.

Gustavo A. R. Silva updates the ice and iavf drivers to use the
strcut_size() helper where possible.

Miguel increases the pause and refresh time for flow control in the
e1000e driver during reset for certain devices.

Dann Frazier fixes a potential NULL pointer dereference in ixgbe driver
when using non-IPSec enabled devices.

Colin Ian King fixes a potential overflow during a shift in the ixgbe
driver.  Also fixes a potential NULL pointer dereference in the iavf
driver by adding a check.

Venkatesh Srinivas converts the e1000 driver to use dma_wmb() instead of
wmb() for doorbell writes to avoid SFENCEs in the transmit and receive
paths.

Arjan updates the e1000e driver to improve boot time by over 100 msec by
reducing the usleep ranges suring system startup.

Artem updates the igb driver register dump in ethtool, first prepares
the register dump for future additions of registers in the dump, then
secondly, adds the RR2DCDELAY register to the dump.  When dealing with
time-sensitive networks, this register is helpful in determining your
latency from the device to the ring.

Alex fixes the ixgbevf driver to use the current cached link state,
rather than trying to re-check the value from the PF.

Harshitha adds support for MACVLAN offloads in i40e by using channels as
MACVLAN interfaces.

Detlev Casanova updates the e1000e driver to use delayed work instead of
timers to run the watchdog.

Vitaly fixes an issue in e1000e, where when disconnecting and
reconnecting the physical cable connection, the NIC enters a DMoff
state.  This state causes a mismatch in link and duplexing, so check the
PCIm function state and perform a PHY reset when in this state to
resolve the issue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-30 16:03:35 -07:00
Michael Chan
4ca5fa39e1 bnxt_en: Suppress error messages when querying DSCP DCB capabilities.
Some firmware versions do not support this so use the silent variant
to send the message to firmware to suppress the harmless error.  This
error message is unnecessarily alarming the user.

Fixes: afdc8a8484 ("bnxt_en: Add DCBNL DSCP application protocol support.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-30 16:00:26 -07:00
Michael Chan
1dbc59fa4b bnxt_en: Cap the returned MSIX vectors to the RDMA driver.
In an earlier commit to improve NQ reservations on 57500 chips, we
set the resv_irqs on the 57500 VFs to the fixed value assigned by
the PF regardless of how many are actually used.  The current
code assumes that resv_irqs minus the ones used by the network driver
must be the ones for the RDMA driver.  This is no longer true and
we may return more MSIX vectors than requested, causing inconsistency.
Fix it by capping the value.

Fixes: 01989c6b69 ("bnxt_en: Improve NQ reservations.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-30 16:00:26 -07:00
Michael Chan
d77b1ad8e8 bnxt_en: Fix statistics context reservation logic for RDMA driver.
The current logic assumes that the RDMA driver uses one statistics
context adjacent to the ones used by the network driver.  This
assumption is not true and the statistics context used by the
RDMA driver is tied to its MSIX base vector.  This wrong assumption
can cause RDMA driver failure after changing ethtool rings on the
network side.  Fix the statistics reservation logic accordingly.

Fixes: 780baad44f ("bnxt_en: Reserve 1 stat_ctx for RDMA driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-30 16:00:26 -07:00
Michael Chan
d27e2ca116 bnxt_en: Fix ethtool selftest crash under error conditions.
After ethtool loopback packet tests, we re-open the nic for the next
IRQ test.  If the open fails, we must not proceed with the IRQ test
or we will crash with NULL pointer dereference.  Fix it by checking
the bnxt_open_nic() return code before proceeding.

Reported-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Fixes: 67fea463fd ("bnxt_en: Add interrupt test to ethtool -t selftest.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-30 16:00:26 -07:00
Michael Chan
c20dc142dd bnxt_en: Disable bus master during PCI shutdown and driver unload.
Some chips with older firmware can continue to perform DMA read from
context memory even after the memory has been freed.  In the PCI shutdown
method, we need to call pci_disable_device() to shutdown DMA to prevent
this DMA before we put the device into D3hot.  DMA memory request in
D3hot state will generate PCI fatal error.  Similarly, in the driver
remove method, the context memory should only be freed after DMA has
been shutdown for correctness.

Fixes: 98f04cf0f1 ("bnxt_en: Check context memory requirements from firmware.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-30 16:00:25 -07:00
Kalle Valo
1375da4787 Patches intended for v5.3
* Work on the new debugging framework continues;
 * Update the FW API for CSI;
 * Special SAR implementation for South Korea;
 * Fixes in the module init error paths;
 * Debugging infra work continues;
 * A bunch of RF-kill fixes by Emmanuel;
 * A fix for AP mode, also related to RF-kill, by Johannes.
 * A few clean-ups;
 * Other small fixes and improvements;
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Merge tag 'iwlwifi-next-for-kalle-2019-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Patches intended for v5.3

* Work on the new debugging framework continues;
* Update the FW API for CSI;
* Special SAR implementation for South Korea;
* Fixes in the module init error paths;
* Debugging infra work continues;
* A bunch of RF-kill fixes by Emmanuel;
* A fix for AP mode, also related to RF-kill, by Johannes.
* A few clean-ups;
* Other small fixes and improvements;
2019-06-30 12:31:11 +03:00
Kalle Valo
9829a0bd66 mt76 patches for 5.3
* use NAPI polling for tx cleanup on mt7603/mt7615
 * various fixes for mt7615
 * unify some code between mt7603 and mt7615
 * fix locking issues on mt76x02
 * add support for toggling edcca on mt7603
 * fix reading target tx power with ext PA on mt7603/mt7615
 * fix initalizing channel maximum power
 * fix rate control / tx status reporting issues on mt76x02/mt7603
 * add support for eeprom calibration data from mtd on mt7615
 * support configuring tx power on mt7615
 * fix external PA support on mt76x0
 * per-chain signal reporting on mt7615
 * rx/tx buffer fixes for USB devices
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Merge tag 'mt76-for-kvalo-2019-06-27' of https://github.com/nbd168/wireless

mt76 patches for 5.3

* use NAPI polling for tx cleanup on mt7603/mt7615
* various fixes for mt7615
* unify some code between mt7603 and mt7615
* fix locking issues on mt76x02
* add support for toggling edcca on mt7603
* fix reading target tx power with ext PA on mt7603/mt7615
* fix initalizing channel maximum power
* fix rate control / tx status reporting issues on mt76x02/mt7603
* add support for eeprom calibration data from mtd on mt7615
* support configuring tx power on mt7615
* fix external PA support on mt76x0
* per-chain signal reporting on mt7615
* rx/tx buffer fixes for USB devices
2019-06-30 12:29:30 +03:00
Heiner Kallweit
f072218cca r8169: remove not needed call to dma_sync_single_for_device
DMA_API_HOWTO.txt includes an example explaining when
dma_sync_single_for_device() is not needed, and that example matches
our use case. The buffer isn't changed by the CPU and direction is
DMA_FROM_DEVICE, so we can remove the call to
dma_sync_single_for_device().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 12:29:39 -07:00
Heiner Kallweit
3c18cbe337 r8169: consider that 32 Bit DMA is the default
Documentation/DMA-API-HOWTO.txt states:
By default, the kernel assumes that your device can address 32-bits of
DMA addressing. For a 64-bit capable device, this needs to be increased,
and for a device with limitations, it needs to be decreased.

Therefore we don't need the 32 Bit DMA fallback configuration and can
remove it.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 12:29:39 -07:00
Heiner Kallweit
759d095741 r8169: improve handling VLAN tag
The VLAN tag is stored in the descriptor in network byte order.
Using swab16 works on little endian host systems only. Better play safe
and use ntohs or htons respectively.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 12:29:39 -07:00
Baruch Siach
7b75e49de4 net: dsa: mv88e6xxx: wait after reset deactivation
Add a 1ms delay after reset deactivation. Otherwise the chip returns
bogus ID value. This is observed with 88E6390 (Peridot) chip.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 12:21:18 -07:00
Guilherme G. Piccoli
3c91f25c2f bnx2x: Prevent ptp_task to be rescheduled indefinitely
Currently bnx2x ptp worker tries to read a register with timestamp
information in case of TX packet timestamping and in case it fails,
the routine reschedules itself indefinitely. This was reported as a
kworker always at 100% of CPU usage, which was narrowed down to be
bnx2x ptp_task.

By following the ioctl handler, we could narrow down the problem to
an NTP tool (chrony) requesting HW timestamping from bnx2x NIC with
RX filter zeroed; this isn't reproducible for example with ptp4l
(from linuxptp) since this tool requests a supported RX filter.
It seems NIC FW timestamp mechanism cannot work well with
RX_FILTER_NONE - driver's PTP filter init routine skips a register
write to the adapter if there's not a supported filter request.

This patch addresses the problem of bnx2x ptp thread's everlasting
reschedule by retrying the register read 10 times; between the read
attempts the thread sleeps for an increasing amount of time starting
in 1ms to give FW some time to perform the timestamping. If it still
fails after all retries, we bail out in order to prevent an unbound
resource consumption from bnx2x.

The patch also adds an ethtool statistic for accounting the skipped
TX timestamp packets and it reduces the priority of timestamping
error messages to prevent log flooding. The code was tested using
both linuxptp and chrony.

Reported-and-tested-by: Przemyslaw Hausman <przemyslaw.hausman@canonical.com>
Suggested-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 12:19:42 -07:00
Harini Katakam
7ad342bc58 net: macb: Fix SUBNS increment and increase resolution
The subns increment register has 24 bits as follows:
RegBit[15:0] = Subns[23:8]; RegBit[31:24] = Subns[7:0]

Fix the same in the driver and increase sub ns resolution to the
best capable, 24 bits. This should be the case on all GEM versions
that this PTP driver supports.

Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 11:09:18 -07:00
Harini Katakam
a8ee4dc1b5 net: macb: Add separate definition for PPM fraction
The scaled ppm parameter passed to _adjfine() contains a 16 bit
fraction. This just happens to be the same as SUBNSINCR_SIZE now.
Hence define this separately.

Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 11:09:18 -07:00
Xue Chaojing
aebd17b768 hinic: add vlan offload support
This patch adds vlan offload support for the HINIC driver.

Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-29 10:28:23 -07:00
Emmanuel Grumbach
9402256286 iwlwifi: mvm: clear rfkill_safe_init_done when we start the firmware
Otherwise it'll stay set forever which is clearly buggy.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:14:45 +03:00
Emmanuel Grumbach
0d53cfd0cc iwlwifi: don't WARN when calling iwl_get_shared_mem_conf with RF-Kill
iwl_mvm_send_cmd returns 0 when the command won't be sent
because RF-Kill is asserted. Do the same when we call
iwl_get_shared_mem_conf since it is not sent through
iwl_mvm_send_cmd but directly calls the transport layer.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:14:40 +03:00
Emmanuel Grumbach
3b57a10ca1 iwlwifi: pcie: don't service an interrupt that was masked
Sometimes the register status can include interrupts that
were masked. We can, for example, get the RF-Kill bit set
in the interrupt status register although this interrupt
was masked. Then if we get the ALIVE interrupt (for example)
that was not masked, we need to *not* service the RF-Kill
interrupt.
Fix this in the MSI-X interrupt handler.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:14:33 +03:00
Emmanuel Grumbach
ed3e4c6d3c iwlwifi: fix RF-Kill interrupt while FW load for gen2 devices
Newest devices have a new firmware load mechanism. This
mechanism is called the context info. It means that the
driver doesn't need to load the sections of the firmware.
The driver rather prepares a place in DRAM, with pointers
to the relevant sections of the firmware, and the firmware
loads itself.
At the end of the process, the firmware sends the ALIVE
interrupt. This is different from the previous scheme in
which the driver expected the FH_TX interrupt after each
section being transferred over the DMA.

In order to support this new flow, we enabled all the
interrupts. This broke the assumption that we have in the
code that the RF-Kill interrupt can't interrupt the firmware
load flow.

Change the context info flow to enable only the ALIVE
interrupt, and re-enable all the other interrupts only
after the firmware is alive. Then, we won't see the RF-Kill
interrupt until then. Getting the RF-Kill interrupt while
loading the firmware made us kill the firmware while it is
loading and we ended up dumping garbage instead of the firmware
state.

Re-enable the ALIVE | RX interrupts from the ISR when we
get the ALIVE interrupt to be able to get the RX interrupt
that comes immediately afterwards for the ALIVE
notification. This is needed for non MSI-X only.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:14:26 +03:00
Emmanuel Grumbach
ec46ae3024 iwlwifi: pcie: fix ALIVE interrupt handling for gen2 devices w/o MSI-X
We added code to restock the buffer upon ALIVE interrupt
when MSI-X is disabled. This was added as part of the context
info code. This code was added only if the ISR debug level
is set which is very unlikely to be related.
Move this code to run even when the ISR debug level is not
set.

Note that gen2 devices work with MSI-X in most cases so that
this path is seldom used.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:14:20 +03:00
Johannes Berg
c56e00a3fe iwlwifi: mvm: delay GTK setting in FW in AP mode
In AP (and IBSS) mode, we can only set GTKs to firmware after we have
sent down the multicast station, but this we can only do after we've
enabled beaconing, etc.

However, during rfkill exit, hostapd will configure the keys before
starting the AP, and cfg80211/mac80211 accept it happily.

On earlier devices, this didn't bother us as GTK TX wasn't really
handled in firmware, we just put the key material into the TX cmd
and thus it only mattered when we actually transmitted a frame.

On newer devices, however, the firmware needs to track all of this
and that doesn't work if we add the key before the (multicast) sta
it belongs to.

To fix this, keep a list of keys to add during AP enable, and call
the function there.

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:13:54 +03:00
Luca Coelho
5b7d678538 iwlwifi: mvm: remove MAC_FILTER_IN_11AX for AP mode
The FW API was clarified saying that this flag should only be set in
BSS client mode.  Remove it from the MAC_CTXT command we send in AP
and GO modes.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Fixes: 3b5ee8dd8b ("iwlwifi: mvm: set MAC_FILTER_IN_11AX in AP mode")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:44 +03:00
Shahar S Matityahu
6c7f708778 iwlwifi: dbg: debug recording stop and restart command remove
The 0xF6 command used to start and stop the recording from 22560 devices
was removed. This is causing an assert when the driver tries to alter
the recording state.
Remove the use of the command.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:44 +03:00
Shahar S Matityahu
c040fe8342 iwlwifi: dbg: don't stop dbg recording before entering D3 from 9000 devices
From 9000 device family the FW automatically stops the debug
recording and the driver should not stop it as well.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:43 +03:00
Shahar S Matityahu
029c25f363 iwlwifi: dbg_ini: fix debug monitor stop and restart in ini mode
In ini debug mode the recording does not restart unless legacy monitor
configuration is also given.

Add dbg_ini_dest field to trans to indicate the debug monitor
destination to solve this.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:43 +03:00
Emmanuel Grumbach
d374f3157f iwlwifi: mvm: make the usage of TWT configurable
TWT is still very new and we expect issues. Make its usage
configurable and disable it by default.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:43 +03:00
Emmanuel Grumbach
5cdb2044fe iwlwifi: support FSEQ TLV even when FMAC is not compiled
FSEQ TLV should be parsed and read even when FMAC is not compiled.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:42 +03:00
Shahar S Matityahu
91c28b83da iwlwifi: dbg: move trans debug fields to a separate struct
Unite iwl_trans debug related fields under iwl_trans_debug struct to
increase readability and keep iwl_trans clean.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:42 +03:00
Shahar S Matityahu
1d45a700df iwlwifi: dbg_ini: remove redundant checking of ini mode
There are several flows where the driver checks if it runs in ini mode.
Some of these flows are no longer used in ini mode or there is another
condition that check the ini mode in the same flow. Either way, those
conditions are redundant. Remove the redundant conditions.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:42 +03:00
Shahar S Matityahu
427ab6385c iwlwifi: dbg_ini: enforce apply point early on buffer allocation tlv
Apply buffer allocation TLV only if it is set to apply point
IWL_FW_INI_APPLY_EARLY.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:41 +03:00
Shahar S Matityahu
fc838c775f iwlwifi: dbg: fix debug monitor stop and restart delays
The driver should delay only in recording stop flow between writing to
DBGC_IN_SAMPLE register and DBGC_OUT_CTRL register. Any other delay is
not needed.

Change the following:
1. Remove any unnecessary delays in the flow
2. Increase the delay in the stop recording flow since 100 micro is
   not enough
3. Use usleep_range instead of delay since the driver is allowed to
   sleep in this flow.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Fixes: 5cfe79c8d9 ("iwlwifi: fw: stop and start debugging using host command")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:41 +03:00
Luca Coelho
c4d3f2ee66 iwlwifi: pcie: increase the size of PCI dumps
Currently we dump only the first 64 bytes of the PCI config space,
which leaves out some important things, such as the base address
registers.

Increase it to 352 for the PCI device and to 524 for the rootport to
make sure we include everything we need.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:41 +03:00
Andrei Otcheretianski
ac70499ee9 iwlwifi: mvm: Drop large non sta frames
In some buggy scenarios we could possible attempt to transmit frames larger
than maximum MSDU size. Since our devices don't know how to handle this,
it may result in asserts, hangs etc.
This can happen, for example, when we receive a large multicast frame
and try to transmit it back to the air in AP mode.
Since in a legal scenario this should never happen, drop such frames and
warn about it.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:41 +03:00
Haim Dreyfuss
4fd445a2c8 iwlwifi: mvm: Add log information about SAR status
Inform users when SAR status is changing.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:40 +03:00
Haim Dreyfuss
0c3d728223 iwlwifi: Add support for SAR South Korea limitation
South Korea is adding a more strict SAR limit called "Limb SAR".
Currently, WGDS SAR offset group 3 is not used (not mapped to any country).
In order to be able to comply with South Korea new restriction:
- OEM will use WGDS SAR offset group 3 to South Korea limitation.
- OEM will change WGDS revision to 1 (currently latest revision is 0)
	to notify that Korea Limb SAR applied.
- Driver will read the WGDS table and pass the values to FW (as usual)
- Driver will pass to FW an indication that Korea Limb SAR is applied
	in case table revision is 1.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:40 +03:00
Johannes Berg
ee3399e523 iwlwifi: fix module init error paths
When the module fails to initialize for some reason, it
doesn't clean up properly. Fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:39 +03:00
Shaul Triebitz
5cc74f65a9 iwlwifi: mvm: convert to FW AC when configuring MU EDCA
The AC numbers used by mac80211 differ from those used
by the firmware.  When setting MU EDCA params for each
AC, use the correct FW AC numbers.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:39 +03:00
Naftali Goldstein
b5e2fe356e iwlwifi: mvm: correctly fill the ac array in the iwl_mac_ctx_cmd
The indexes into the ac array in the iwl_mac_ctx_cmd are from the iwl_ac
enum and not the txfs.  The current code therefore puts the edca params
in the wrong indexes of the array, causing wrong priority for
data-streams of different ACs.
Fix this.

Note that this bug only occurs in NICs that use the new tx api, since in
the old tx api the txf number is equal to the corresponding ac in the
iwl_ac enum.

Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:39 +03:00
Dan Carpenter
bd9c519785 iwlwifi: remove some unnecessary NULL checks
These pointers are an offset into the "sta" struct.  They're assigned
like this:

	const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;

They're not the first member of the struct (->supp_rates[] is first) so
they can't be NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:38 +03:00
Gustavo A. R. Silva
e344896723 iwlwifi: d3: Use struct_size() helper
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.

So, change the following form:

sizeof(*pattern_cmd) +
               wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern)

 to :

struct_size(pattern_cmd, patterns, wowlan->n_patterns)

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:38 +03:00
Gustavo A. R. Silva
8283f4f85c iwlwifi: lib: Use struct_size() helper
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.

So, change the following form:

sizeof(*pattern_cmd) +
               wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern)

 to :

struct_size(pattern_cmd, patterns, wowlan->n_patterns)

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:38 +03:00
Shahar S Matityahu
3e832fd10f iwlwifi: fw api: support adwell HB default APs number api
Support adaptive dwell high band default number of APs new api.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:37 +03:00
Mordechay Goodstein
d6882e586f iwlwifi: mvm: remove multiple debugfs entries
Now that we have per station control over amsdu size no need for
multiple entries, especially that the old one is misleading due to not
setting it for all protocols as a limit.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:37 +03:00
Shahar S Matityahu
0a3a3e9ec5 iwlwifi: dbg_ini: implement dump info collection
The info struct contains data about the FW, HW, RF and the debug
configuration.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:09:31 +03:00
Mordechay Goodstein
af2984e9e6 iwlwifi: mvm: add a debugfs entry to set a fixed size AMSDU for all TX packets
The current debugfs entry only limits the max AMSDU for TCP.  Add a new
debugfs entry to allow setting a fixed AMSDU size for all TX packets,
including UDP and ICMP

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:06 +03:00
Shahar S Matityahu
57d88b1161 iwlwifi: dbg_ini: support debug info TLV
Add support to debug info TLV.
The TLV contains human readable naming of the FW image and the
debug configuration.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:06 +03:00
Shahar S Matityahu
dc14b800cd iwlwifi: dbg_ini: use different barker for ini dump
Use a different barker for ini dump to allow differentiation from legacy
dump. Also it allows to remove INI_BIT from dump TLVs.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:06 +03:00
Shahar S Matityahu
c7ab138eb1 iwlwifi: dbg_ini: add consecutive trigger firing support
When a dump trigger is fired, the driver sets IWL_FWRT_STATUS_DUMPING and
aborts any consecutive dump collection.
To allow consecutive triggers firing, use 5 dump workers and allocate
them upon incoming dump collection requests.

This functionality is needed since in ini debug mode each trigger may
have entirely different memory regions to collect unlike the legacy
mode in which all the triggers dump the same memory regions.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:05 +03:00
Shahar S Matityahu
e8704b8192 iwlwifi: dbg_ini: abort region collection in case the size is 0
Allows to abort region collection in case the region size is 0.
It is needed for future regions that their size might be 0.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:05 +03:00
Johannes Berg
6669e924a7 iwlwifi: update CSI API
Update the CSI API to the new version supported by the firmware.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:05 +03:00
Shahar S Matityahu
973193554c iwlwifi: dbg_ini: dump headers cleanup
Unite dump memory ranges under a single struct and add a specific header
for each type of memory.
Also, maintain a single version to all dump structures.

This cleanup is also needed for the future addition of FW notification
regions and others.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:04 +03:00
Shahar S Matityahu
e4eee94388 iwlwifi: dbg: allow dump collection in case of an early error
Improve the robustness of the dump collection flow in case of an early
error:
1. in iwl_trans_pcie_sync_nmi, disable and enable interrupts only if
   they were already enabled
2. attempt to initiate dump collection in iwl_fw_dbg_error_collect only
   if the device is enabled
3. check Tx command queue was already allocated before trying to collect it

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:04 +03:00
Jiri Kosina
9ae3b870a8 iwlwifi: iwl_mvm_tx_mpdu() must be called with BH disabled
As iwl_mvm_tx_mpdu() is not disabling BH while obtaining iwl_mvm_sta->lock
(which is being taken from BH context as well), it has to be always
invoked with BH disabled. Make that clear in a comment.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29 10:08:03 +03:00
Paul Blakey
f6dc1264f1 net/mlx5e: Disallow tc redirect offload cases we don't support
After changing the parent_id to be the same for both NICs of same
the hardware device, netdev_port_same_parent_id now returns true for
more cases (all the lower devices in the hierarchy are on the same
hardware device).

If merged eswitch isn't enabled, these cases aren't supported, so disallow
them.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-28 16:04:00 -07:00
Paul Blakey
7ff40a46dd net/mlx5e: Expose same physical switch_id for all representors
Report system_image_guid as the E-Switch switch_id, this ensures
that when a NIC contains multiple PCI functions and which
has merged eswitch capability, all representors from
multiple PFs publish same switch_id.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-28 16:04:00 -07:00