Commit Graph

933851 Commits

Author SHA1 Message Date
David S. Miller b007def80e Merge branch 'net-qed-qede-license-cleanup'
Alexander Lobakin says:

====================
net: qed/qede: license cleanup

QLogic QED drivers source code is dual licensed under
GPL-2.0/BSD-3-Clause.

Correct already existing but wrong SPDX tags to match the actual
license.
Remove the license boilerplates and replace them with the correct
SPDX tag.
Update copyright years in all source files.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:51:40 -07:00
Alexander Lobakin c4fad2a532 net: qede: update copyright years
Set the actual copyright holder and years in all qede source files.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:51:40 -07:00
Alexander Lobakin 7268f33e55 net: qede: convert to SPDX License Identifiers
QLogic QED drivers source code is dual licensed under
GPL-2.0/BSD-3-Clause.
Remove all the boilerplates in the existing code and replace it with the
correct SPDX tag.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:51:40 -07:00
Alexander Lobakin 090efe00ab net: qede: correct existing SPDX tags
QLogic QED drivers source code is dual licensed under
GPL-2.0/BSD-3-Clause.
Correct already existing but wrong SPDX tags to match the actual
license.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:51:40 -07:00
Alexander Lobakin 663eacd899 net: qed: update copyright years
Set the actual copyright holder and years in all qed source files.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:51:40 -07:00
Alexander Lobakin 1f4d4ed6ac net: qed: convert to SPDX License Identifiers
QLogic QED drivers source code is dual licensed under
GPL-2.0/BSD-3-Clause.
Remove all the boilerplates in the existing code and replace it with the
correct SPDX tag.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:51:39 -07:00
Alexander Lobakin ab81e23cf7 net: qed: correct existing SPDX tags
QLogic QED drivers source code is dual licensed under
GPL-2.0/BSD-3-Clause.
Correct already existing but wrong SPDX tags to match the actual
license.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:51:39 -07:00
Yousuk Seung ff91e9292f tcp: call tcp_ack_tstamp() when not fully acked
When skb is coalesced tcp_ack_tstamp() still needs to be called when not
fully acked in tcp_clean_rtx_queue(), otherwise SCM_TSTAMP_ACK
timestamps may never be fired. Since the original patch series had
dependent commits, this patch fixes the issue instead of reverting by
restoring calls to tcp_ack_tstamp() when skb is not fully acked.

Fixes: fdb7eb21dd ("tcp: stamp SCM_TSTAMP_ACK later in tcp_clean_rtx_queue()")
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:40:33 -07:00
Colin Ian King 5831b33362 net/mlx5e: fix memory leak of tls
The error return path when create_singlethread_workqueue fails currently
does not kfree tls and leads to a memory leak. Fix this by kfree'ing
tls before returning -ENOMEM.

Addresses-Coverity: ("Resource leak")
Fixes: 1182f36593 ("net/mlx5e: kTLS, Add kTLS RX HW offload support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:38:47 -07:00
Paolo Abeni 6bad912b7e mptcp: do nonce initialization at subflow creation time
This clean-up the code a bit, reduces the number of
used hooks and indirect call requested, and allow
better error reporting from __mptcp_subflow_connect()

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:38:00 -07:00
Colin Ian King a6ed3ebca4 net/tls: fix sign extension issue when left shifting u16 value
Left shifting the u16 value promotes it to a int and then it
gets sign extended to a u64.  If len << 16 is greater than 0x7fffffff
then the upper bits get set to 1 because of the implicit sign extension.
Fix this by casting len to u64 before shifting it.

Addresses-Coverity: ("integer handling issues")
Fixes: ed9b7646b0 ("net/tls: Add asynchronous resync")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:36:56 -07:00
David S. Miller a37675899c Merge branch 'sfc-prerequisites-for-EF100-driver-part-2'
Edward Cree says:

====================
sfc: prerequisites for EF100 driver, part 2

Continuing on from [1], this series further prepares the sfc codebase
 for the introduction of the EF100 driver.

[1]: https://lore.kernel.org/netdev/20200629.173812.1532344417590172093.davem@davemloft.net/T/
====================

Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:22:12 -07:00
Edward Cree c72ae701ee sfc: don't call tx_remove if there isn't one
EF100 won't have an efx->type->tx_remove method, because there's
 nothing for it to do.  So make the call conditional.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree f07cb4128a sfc: commonise initialisation of efx->vport_id
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree d4adc5162b sfc: commonise efx->[rt]xq_entries initialisation
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 937aa3ae4d sfc: initialise max_[tx_]channels in efx_init_channels()
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 20e1026cbe sfc: move definition of EFX_MC_STATS_GENERATION_INVALID
Saves a whole #include from nic.c.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree e7a256858f sfc: factor out efx_tx_tso_header_length() and understand encapsulation
ef100 will need to check this against NIC limits.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 93841000ed sfc: remove duplicate declaration of efx_enqueue_skb_tso()
Define it in nic_common.h, even though the ef100 driver will have a
 different implementation backing it (actually a WARN_ON_ONCE as it
 should never get called by ef100.  But it needs to still exist because
 common TX path code references it).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 740acc15c8 sfc: commonise TSO fallback code
ef100 will need this if it gets GSO skbs it can't handle (e.g. too long
 header length).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 80a0074e6a sfc: commonise efx_sync_rx_buffer()
The ef100 RX path will also need to DMA-sync RX buffers.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree f7e55550a3 sfc: commonise some MAC configuration code
Refactor it a little as we go, and introduce efx_mcdi_set_mtu() which we
 will later use for ef100 to change MTU without touching other MAC settings.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 2d73515a1c sfc: commonise miscellaneous efx functions
Various left-over bits and pieces from efx.c that are needed by ef100.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 2c6c1e3cfd sfc: add missing licence info to mcdi_filters.c
Both the licence notice and the SPDX tag were missing from this file.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 272e53aa5c sfc: commonise MCDI MAC stats handling
Most of it was already declared in mcdi_port_common.h, so just move the
 implementations to mcdi_port_common.c.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree 83d00531cb sfc: move NIC-specific mcdi_port declarations out of common header
These functions are implemented in mcdi_port.c, which will not be linked
 into the EF100 driver; thus their prototypes should not be visible in
 common header files.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
David S. Miller 1d074bee67 Merge branch 'Convert-Broadcom-SF2-to-mac_link_up-resolved-state'
Russell King says:

====================
Convert Broadcom SF2 to mac_link_up() resolved state

Convert Broadcom SF2 DSA support to use the newly provided resolved
link state via mac_link_up() rather than using the state in
mac_config().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:05:10 -07:00
Russell King 981015ac60 net: dsa/bcm_sf2: move pause mode setting into mac_link_up()
bcm_sf2 only appears to support pause modes on RGMII interfaces (the
enable bits are in the RGMII control register.)  Setup the pause modes
for RGMII connections.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:05:10 -07:00
Russell King 50cc2020a8 net: dsa/bcm_sf2: move speed/duplex forcing to mac_link_up()
Convert the bcm_sf2 to use the finalised speed and duplex in its
mac_link_up() call rather than the parameters in mac_config().

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:05:10 -07:00
Russell King 2d1f90f9ba net: dsa/bcm_sf2: fix incorrect usage of state->link
state->link has never been valid in mac_config() implementations -
while it may be correct in some calls, it is not true that it can be
relied upon.

Fix bcm_sf2 to use the correct method of handling forced link status.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:05:10 -07:00
David S. Miller bcd763b714 Merge branch 'Convert-Broadcom-B53-to-mac_link_up-resolved-state'
Russell King says:

====================
Convert Broadcom B53 to mac_link_up() resolved state

These two patches update the Broadcom B53 DSA support to use the newly
provided resolved link state via mac_link_up() rather than using the
state in mac_config().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:03:27 -07:00
Russell King ab017b7921 net: dsa/b53: use resolved link config in mac_link_up()
Convert the B53 driver to use the finalised link parameters in
mac_link_up() rather than the parameters in mac_config(). This is
just a matter of moving the call to b53_force_port_config().

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:03:26 -07:00
Russell King 3cad1c8b49 net: dsa/b53: change b53_force_port_config() pause argument
Replace the b53_force_port_config() pause argument, which is based on
phylink's MLO_PAUSE_* definitions, to use a pair of booleans.  This
will allow us to move b53_force_port_config() from
b53_phylink_mac_config() to b53_phylink_mac_link_up().

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:03:26 -07:00
David S. Miller d9b8b9845f This feature/cleanup patchset includes the following patches:
- bump version strings, by Simon Wunderlich
 
  - update mailing list URL, by Sven Eckelmann
 
  - fix typos and grammar in documentation, by Sven Eckelmann
 
  - introduce a configurable per interface hop penalty,
    by Linus Luessing
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCgA0FiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAl769w8WHHN3QHNpbW9u
 d3VuZGVybGljaC5kZQAKCRChK+OYQpKeoatoEACN9O+fCwDIlIdxw/bUlGFw1J+V
 4rDReo5grIkl3BSdnLkkaPXTcazCWRoFhCdH6esTsF4/R/nwUa5AZuAbVd2NnCFU
 H+hVc7q/w0Hqppx5APT0AghgLcp8mFuHV9jqtJOjv9Kvd05Il6XwGkALT8QX2e2P
 ypMD+PBuQT1XCMl0v02lA0ki2TxvCtFYs1UznbAdl86GOGMua3t6fuRWQ2fpUMou
 t9251NnwSvSyeYuI8Zws7Wza2S4FOilX/CAjjGi02D0xf7T/JDs3FiPd6obdNfe/
 4j6R2dHWjxz1sb6bEdM3wfmUlU4StMQ+Vywpu1fh3gihLc2tmtMZhn6tJk3YjALt
 zlwDO2p/si7FLrizfMS7mUesZJH7Ji79BZtZWXsdW3p1zU1jlfJh5dc2ZaKwL9qk
 MSpd9DH2F459YC6ELcITLnhCymc7O/g3n3voNnSxi7uX4M5LsGt0mcx6g/iiFN16
 nPNHzXo7WJjgRcmLEQ3kYeD7Kjqh5XEogKLnwhThBxCFIQkNFF3OYqWtJyj5Sg5o
 +EredOAcq1Rc5CR//V43rQZLk4o1I9qQysKFqbjHohMIgLccz+47QAeBXrhku0ZT
 XU6k09Q0pkuo3iVPYnIUTDUkHtvFtsCKR98+8tB5xDR5F155OpFg7AXaKIx5Iym8
 4/eGrx22T+6TIeSGGg==
 =ceu6
 -----END PGP SIGNATURE-----

Merge tag 'batadv-next-for-davem-20200630' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
This feature/cleanup patchset includes the following patches:

 - bump version strings, by Simon Wunderlich

 - update mailing list URL, by Sven Eckelmann

 - fix typos and grammar in documentation, by Sven Eckelmann

 - introduce a configurable per interface hop penalty,
   by Linus Luessing
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 12:59:15 -07:00
Florian Fainelli 65951a9eb6 net: dsa: Improve subordinate PHY error message
It is not very informative to know the DSA master device when a
subordinate network device fails to get its PHY setup. Provide the
device name and capitalize PHY while we are it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 12:44:20 -07:00
Luo bin 9d9f95a940 hinic: remove unused but set variable
remove unused but set variable to avoid auto build test WARNING

Signed-off-by: Luo bin <luobin9@huawei.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 12:42:07 -07:00
David S. Miller e25974ae9d Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
1GbE Intel Wired LAN Driver Updates 2020-06-29

This series contains updates to only the igc driver.

Sasha added Energy Efficient Ethernet (EEE) support and Latency Tolerance
Reporting (LTR) support for the igc driver. Added Low Power Idle (LPI)
counters and cleaned up unused TCP segmentation counters. Removed
igc_power_down_link() and call igc_power_down_phy_copper_base()
directly. Removed unneeded copper media check.

Andre cleaned up timestamping by removing un-supported features and
duplicate code for i225. Fixed the timestamp check on the proper flag
instead of the skb for pending transmit timestamps. Refactored
igc_ptp_set_timestamp_mode() to simply the flow.

v2: Removed the log message in patch 1 as suggested by David Miller.
    Note: The locking issue Jakub Kicinski saw in patch 5, currently
    exists in the current net-next tree, so Andre will resolve the
    locking issue in a follow-on patch.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 12:34:35 -07:00
Sasha Neftin f637471d33 igc: Remove checking media type during MAC initialization
i225 device support only copper mode.
There is no point to check media type in the
igc_config_fc_after_link_up() method.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:22:03 -07:00
Sasha Neftin 2b374e3738 igc: Remove unneeded check for copper media type
PHY of the i225 device support only copper mode.
There is no point to check media type in the
igc_power_up_link() method.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:56 -07:00
Sasha Neftin a0beb3c1b1 igc: Refactor the igc_power_down_link()
Currently the implementation of igc_power_down_link()
method was just calling igc_power_down_phy_copper_base()
method.
We can just call igc_power_down_phy_copper_base()
method directly.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:53 -07:00
Sasha Neftin 725fa16d36 igc: Remove TCP segmentation TX fail counter
TCP segmentation TX context fail counter is not
applicable for i225 devices.
This patch comes to clean up this counter.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown<aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:48 -07:00
Sasha Neftin 900d1e8b34 igc: Add LPI counters
Add EEE TX LPI and EEE RX LPI counters. A EEE TX LPI event
occurs when the transmitter enters EEE (IEEE 802.3az) LPI
state. A EEE RX LPI event occurs when the receiver detect
link partner entry into EEE(IEEE 802.3az) LPI state.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:41 -07:00
Andre Guedes 1cbedabffd igc: Fix Rx timestamp disabling
When Rx timestamping is enabled, we set the timestamp bit in SRRCTL
register for each queue, but we don't clear it when disabling. This
patch fixes igc_ptp_disable_rx_timestamp() accordingly.

Also, this patch gets rid of igc_ptp_enable_tstamp_rxqueue() and
igc_ptp_enable_tstamp_all_rxqueues() and move their logic into
igc_ptp_enable_rx_timestamp() to keep the enable and disable
helpers symmetric.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:38 -07:00
Andre Guedes 3df7fd799b igc: Refactor igc_ptp_set_timestamp_mode()
Current igc_ptp_set_timestamp_mode() logic is a bit tangled since it
handles many different hardware configurations in one single place,
making it harder to follow. This patch untangles that code by breaking
it into helper functions.

Quick note about the hw->mac.type check which was removed in this
refactoring: this check it not really needed since igc_i225 is the only
type supported by the IGC driver.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:35 -07:00
Andre Guedes 3b44d4c10c igc: Remove UDP filter setup in PTP code
As implemented in igc_ethtool_get_ts_info(), igc only supports HWTSTAMP_
FILTER_ALL so any HWTSTAMP_FILTER_* option the user may set falls back to
HWTSTAMP_FILTER_ALL.

HWTSTAMP_FILTER_ALL is implemented via Rx Time Sync Control (TSYNCRXCTL)
configuration which timestamps all incoming packets. Configuring a
UDP filter, in addition to TSYNCRXCTL, doesn't add much so this patch
removes that code. It also takes this opportunity to remove some
non-applicable comments.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:29 -07:00
Andre Guedes 1801f8d929 igc: Check __IGC_PTP_TX_IN_PROGRESS instead of ptp_tx_skb
The __IGC_PTP_TX_IN_PROGRESS flag indicates we have a pending Tx
timestamp. In some places, instead of checking that flag, we check
adapter->ptp_tx_skb. This patch fixes those places to use the flag.

Quick note about igc_ptp_tx_hwtstamp() change: when that function is
called, adapter->ptp_tx_skb is expected to be valid always so we
WARN_ON_ONCE() in case it is not.

Quick note about igc_ptp_suspend() change: when suspending, we don't
really need to check if there is a pending timestamp. We can simply
clear it unconditionally.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:24 -07:00
Andre Guedes 29b821fe97 igc: Remove duplicate code in Tx timestamp handling
The functions igc_ptp_tx_hang() and igc_ptp_tx_work() have duplicate
code which handles Tx timestamp timeouts. This patch does a trivial
refactoring by moving that code to its own function and reusing it.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:19 -07:00
Andre Guedes 3a66abe903 igc: Clean up Rx timestamping logic
Differently from I210, I225 doesn't report Rx timestamps via the TS bit
Rx descriptor + RXSTMPL/RXSTMPH registers mechanism. Rx timestamps are
reported in the packet buffer only, which is implemented by igc_ptp_rx_
pktstamp(). So this patch removes igc_ptp_rx_rgtstamp() and all code
related to it, copied from igb driver.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:16 -07:00
Sasha Neftin 707abf0695 igc: Add initial LTR support
The LTR message on the PCIe inform the requested latency
on which the PCIe must become active to the downstream
PCIe port of the system.
This patch provide recommended LTR parameters by i225
specification.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-29 18:21:09 -07:00
David S. Miller 2dac017dbd Merge branch 'Add-ethtool-extended-link-state'
Ido Schimmel says:

====================
Add ethtool extended link state

Amit says:

Currently, device drivers can only indicate to user space if the network
link is up or down, without additional information.

This patch set provides an infrastructure that allows these drivers to
expose more information to user space about the link state. The
information can save users' time when trying to understand why a link is
not operationally up, for example.

The above is achieved by extending the existing ethtool LINKSTATE_GET
command with attributes that carry the extended state.

For example, no link due to missing cable:

$ ethtool ethX
...
Link detected: no (No cable)

Beside the general extended state, drivers can pass additional
information about the link state using the sub-state field. For example:

$ ethtool ethX
...
Link detected: no (Autoneg, No partner detected)

In the future the infrastructure can be extended - for example - to
allow PHY drivers to report whether a downshift to a lower speed
occurred. Something like:

$ ethtool ethX
...
Link detected: yes (downshifted)

Patch set overview:

Patches #1-#3 move mlxsw ethtool code to a separate file
Patches #4-#5 add the ethtool infrastructure for extended link state
Patches #6-#7 add support of extended link state in the mlxsw driver
Patches #8-#10 add test cases

Changes since v1:

* In documentation, show ETHTOOL_LINK_EXT_STATE_* and
  ETHTOOL_LINK_EXT_SUBSTATE_* constants instead of user-space strings
* Add `_CI_` to cable_issue substates to be consistent with
  other substates
* Keep the commit messages within 75 columns
* Use u8 variable for __link_ext_substate
* Document the meaning of -ENODATA in get_link_ext_state() callback
  description
* Do not zero data->link_ext_state_provided after getting an error
* Use `ret` variable for error value

Changes since RFC:

* Move documentation patch before ethtool patch
* Add nla_total_size() instead of sizeof() directly
* Return an error code from linkstate_get_ext_state()
* Remove SHORTED_CABLE, add CABLE_TEST_FAILURE instead
* Check if the interface is administratively up before setting ext_state
* Document all sub-states
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:45:02 -07:00