Commit Graph

94561 Commits

Author SHA1 Message Date
Brett Creeley
cd1f56f429 ice: Allow all VLANs in safe mode
Currently the PF VSI's context parameters are left in a bad state when
going into safe mode. This is causing VLAN traffic to not pass. Fix this
by configuring the PF VSI to allow all VLAN tagged traffic.

Also, remove redundant comment explaining the safe mode flow in
ice_probe().

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Krzysztof Kazimierczak
682dfedcee ice: need_wakeup flag might not be set for Tx
This is a port of i40e commit 705639572e ("i40e: need_wakeup flag might
not be set for Tx").

Quoting the original commit message:

"The need_wakeup flag for Tx might not be set for AF_XDP sockets that
are only used to send packets. This happens if there is at least one
outstanding packet that has not been completed by the hardware and we
get that corresponding completion (which will not generate an interrupt
since interrupts are disabled in the napi poll loop) between the time we
stopped processing the Tx completions and interrupts are enabled again.
In this case, the need_wakeup flag will have been cleared at the end of
the Tx completion processing as we believe we will get an interrupt from
the outstanding completion at a later point in time. But if this
completion interrupt occurs before interrupts are enable, we lose it and
should at that point really have set the need_wakeup flag since there
are no more outstanding completions that can generate an interrupt to
continue the processing. When this happens, user space will see a Tx
queue need_wakeup of 0 and skip issuing a syscall, which means will
never get into the Tx processing again and we have a deadlock."

As a result, packet processing stops. This patch introduces a fix for
this issue, by always setting the need_wakeup flag at the end of an
interrupt processing. This ensures that the deadlock will not happen.

Signed-off-by: Krzysztof Kazimierczak <krzysztof.kazimierczak@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Victor Raj
4043818c13 ice: distribute Tx queues evenly
Distribute the Tx queues evenly across all queue groups. This will
help the queues to get more equal sharing among the queues when all
are in use.

In the previous algorithm, the next queue group node will be picked up
only after the previous one filled with max children.
For example: if VSI is configured with 9 queues, the first 8 queues
will be assigned to queue group 1 and the 9th queue will be assigned to
queue group 2.

The 2 queue groups split the bandwidth between them equally (50:50).
The first queue group node will share the 50% bandwidth with all of
its children (8 queues). And the second queue group node will share
the entire 50% bandwidth with its only children.

The new algorithm will fix this issue.

Signed-off-by: Victor Raj <victor.raj@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Tarun Singh
984824a210 ice: Adjust scheduler default BW weight
By default the queues are configured in legacy mode. The default
BW settings for legacy/advanced modes are different. The existing
code was using the advanced mode default value of 1 which was
incorrect. This caused the unbalanced BW sharing among siblings.
The recommended default value is applied.

Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Tarun Singh
b3b93d6ce1 ice: Add RL profile bit mask check
Mask bits before accessing the profile type field.

Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Paul M Stillwell Jr
a02016de00 ice: fix overwriting TX/RX descriptor values when rebuilding VSI
If a user sets the value of the TX or RX descriptors to some non-default
value using 'ethtool -G' then we need to not overwrite the values when
we rebuild the VSI. The VSI rebuild could happen as a result of a user
setting the number of queues via the 'ethtool -L' command. Fix this by
checking to see if the value we have stored is non-zero and if it is
then don't change the value.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Kiran Patil
ca1fdb885e ice: return correct error code from ice_aq_sw_rules
Return ICE_ERR_DOES_NOT_EXIST return code if admin command error code is
ICE_AQ_RC_ENOENT (not exist). ice_aq_sw_rules is used when switch
rule is getting added/deleted/updated. In case of delete/update
switch rule, admin command can return ICE_AQ_RC_ENOENT error code
if such rule does not exist, hence return ICE_ERR_DOES_NOT_EXIST error
code from ice_aq_sw_rule, so that caller of this function can decide
how to handle ICE_ERR_DOES_NOT_EXIST.

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Nick Nunley
a54a0b24f4 ice: restore VF MSI-X state during PCI reset
During a PCI FLR the MSI-X Enable flag in the VF PCI MSI-X capability
register will be cleared. This can lead to issues when a VF is
assigned to a VM because in these cases the VF driver receives no
indication of the PF PCI error/reset and additionally it is incapable
of restoring the cleared flag in the hypervisor configuration space
without fully reinitializing the driver interrupt functionality.

Since the VF driver is unable to easily resolve this condition on its own,
restore the VF MSI-X flag during the PF PCI reset handling.

Signed-off-by: Nick Nunley <nicholas.d.nunley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:55 -07:00
Dave Ertman
0ce6c34a8f ice: fix link event handling timing
When the driver experiences a link event (especially link up)
there can be multiple events generated. Some of these are
link fault and still have a state of DOWN set.  The problem
happens when the link comes UP during the PF driver handling
one of the LINK DOWN events.  The status of the link is updated
and is now seen as UP, so when the actual LINK UP event comes,
the port information has already been updated to be seen as UP,
even though none of the UP activities have been completed.

After the link information has been updated in the link
handler and evaluated for MEDIA PRESENT, if the state
of the link has been changed to UP, treat the DOWN event
as an UP event since the link is now UP.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:54 -07:00
Dave Ertman
b767ca650f ice: Fix link broken after GLOBR reset
After a GLOBR, the link was broken so that a link
up situation was being seen as a link down.

The problem was that the rebuild process was updating
the port_info link status without doing any of the
other things that need to be done when link changes.

This was causing the port_info struct to have current
"UP" information so that any further UP interrupts
were skipped as redundant.

The rebuild flow should *not* be updating the port_info
struct link information, so eliminate this and leave
it to the link event handling code.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:54 -07:00
Dave Ertman
7d9c9b791f ice: Implement LFC workaround
There is a bug where the LFC settings are not being preserved
through a link event.  The registers in question are the ones
that are touched (and restored) when a set_local_mib AQ command
is performed.

On a link-up event, make sure that a set_local_mib is being
performed.

Move the function ice_aq_set_lldp_mib() from the DCB specific
ice_dcb.c to ice_common.c so that the driver always has access
to this AQ command.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-29 08:38:54 -07:00
Jisheng Zhang
77b2898394 net: stmmac: Speed down the PHY if WoL to save energy
When WoL is enabled and the machine is powered off, the PHY remains
waiting for wakeup events at max speed, which is a waste of energy.

Slow down the PHY speed before stopping the ethernet if WoL is enabled,

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang
1d8e5b0f3f net: stmmac: Support WOL with phy
Currently, the stmmac driver WOL implementation relies on MAC's PMT
feature. We have a case: the MAC HW doesn't enable PMT, instead, we
rely on the phy to support WOL. Implement the support for this case.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang
e8377e7a29 net: stmmac: only call pmt() during suspend/resume if HW enables PMT
This is to prepare WOL support with phy. Compared with WOL
implementation which relies on the MAC's PMT features, in phy
supported WOL case, device_may_wakeup() may also be true, but we
should not call mac's pmt() function if HW doesn't enable PMT.

And during resume, we should call phylink_start() if PMT is disabled.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang
2f45f7a13e net: stmmac: Move device_can_wakeup() check earlier in set_wol
If !device_can_wakeup(), there's no need to futher check. And return
-EOPNOTSUPP rather than -EINVAL if !device_can_wakeup().

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:20 -07:00
Jisheng Zhang
1057d685c6 net: stmmac: Remove WAKE_MAGIC if HW shows no pmt_magic_frame
Remove WAKE_MAGIC from supported modes if the HW capability register
shows no support for pmt_magic_frame.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:48:19 -07:00
Linus Walleij
788abc6d9d net: dsa: rtl8366: Fix VLAN set-up
Alter the rtl8366_vlan_add() to call rtl8366_set_vlan()
inside the loop that goes over all VIDs since we now
properly support calling that function more than once.
Augment the loop to postincrement as this is more
intuitive.

The loop moved past the last VID but called
rtl8366_set_vlan() with the port number instead of
the VID, assuming a 1-to-1 correspondence between
ports and VIDs. This was also a bug.

Cc: DENG Qingfang <dqfext@gmail.com>
Cc: Mauri Sandberg <sandberg@mailfence.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: d8652956cf ("net: dsa: realtek-smi: Add Realtek SMI driver")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:44:23 -07:00
Linus Walleij
15ab7906cc net: dsa: rtl8366: Fix VLAN semantics
The RTL8366 would not handle adding new members (ports) to
a VLAN: the code assumed that ->port_vlan_add() was only
called once for a single port. When intializing the
switch with .configure_vlan_while_not_filtering set to
true, the function is called numerous times for adding
all ports to VLAN1, which was something the code could
not handle.

Alter rtl8366_set_vlan() to just |= new members and
untagged flags to 4k and MC VLAN table entries alike.
This makes it possible to just add new ports to a
VLAN.

Put in some helpful debug code that can be used to find
any further bugs here.

Cc: DENG Qingfang <dqfext@gmail.com>
Cc: Mauri Sandberg <sandberg@mailfence.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: d8652956cf ("net: dsa: realtek-smi: Add Realtek SMI driver")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:44:23 -07:00
Luo bin
90f86b8a36 hinic: add log in exception handling processes
improve the error message when functions return failure and dump
relevant registers in some exception handling processes

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:22:03 -07:00
Luo bin
c15850c709 hinic: add support to handle hw abnormal event
add support to handle hw abnormal event such as hardware failure,
cable unplugged,link error

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:22:02 -07:00
Jacob Keller
d69ea414c9 ice: implement device flash update via devlink
Use the newly added pldmfw library to implement device flash update for
the Intel ice networking device driver. This support uses the devlink
flash update interface.

The main parts of the flash include the Option ROM, the netlist module,
and the main NVM data. The PLDM firmware file contains modules for each
of these components.

Using the pldmfw library, the provided firmware file will be scanned for
the three major components, "fw.undi" for the Option ROM, "fw.mgmt" for
the main NVM module containing the primary device firmware, and
"fw.netlist" containing the netlist module.

The flash is separated into two banks, the active bank containing the
running firmware, and the inactive bank which we use for update. Each
module is updated in a staged process. First, the inactive bank is
erased, preparing the device for update. Second, the contents of the
component are copied to the inactive portion of the flash. After all
components are updated, the driver signals the device to switch the
active bank during the next EMP reset (which would usually occur during
the next reboot).

Although the firmware AdminQ interface does report an immediate status
for each command, the NVM erase and NVM write commands receive status
asynchronously. The driver must not continue writing until previous
erase and write commands have finished. The real status of the NVM
commands is returned over the receive AdminQ. Implement a simple
interface that uses a wait queue so that the main update thread can
sleep until the completion status is reported by firmware. For erasing
the inactive banks, this can take quite a while in practice.

To help visualize the process to the devlink application and other
applications based on the devlink netlink interface, status is reported
via the devlink_flash_update_status_notify. While we do report status
after each 4k block when writing, there is no real status we can report
during erasing. We simply must wait for the complete module erasure to
finish.

With this implementation, basic flash update for the ice hardware is
supported.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:07:06 -07:00
Jacob Keller
2ab560a78e ice: add flags indicating pending update of firmware module
After a flash update, the pending status of the update can be determined
from the device capabilities.

Read the appropriate device capability and store whether there is
a pending update awaiting a reboot.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:07:06 -07:00
Cudzilo, Szymon T
544cd2ac13 ice: Add AdminQ commands for FW update
Add structures, identifiers, and helper functions for several AdminQ
commands related to performing a firmware update for the ice hardware.
These will be used in future code for implementing the devlink
.flash_update handler.

Signed-off-by: Cudzilo, Szymon T <szymon.t.cudzilo@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:07:06 -07:00
Jacek Naczyk
de9b277ee0 ice: Add support for unified NVM update flow capability
Extends function parsing response from Discover Device
Capability AQC to check if the device supports unified NVM update flow.

Signed-off-by: Jacek Naczyk <jacek.naczyk@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:07:06 -07:00
Vadim Pasternak
f152b41ba6 mlxsw: core: Add support for temperature thresholds reading for QSFP-DD transceivers
Allow QSFP-DD transceivers temperature thresholds reading for hardware
monitoring and thermal control.

For this type, the thresholds are located in page 02h according to the
"Module and Lane Thresholds" description from Common Management
Interface Specification.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 13:28:02 -07:00
Vadim Pasternak
6af496adcb mlxsw: core: Add ethtool support for QSFP-DD transceivers
The Quad Small Form Factor Pluggable Double Density (QSFP-DD) hardware
specification defines a form factor that supports up to 400 Gbps in
aggregate over an 8x50-Gbps electrical interface. The QSFP-DD supports
both optical and copper interfaces.

Implementation is based on Common Management Interface Specification;
Rev 4.0 May 8, 2019. Table 8-2 "Identifier and Status Summary (Lower
Page)" from this spec defines "Id and Status" fields located at offsets
00h - 02h. Bit 2 at offset 02h ("Flat_mem") specifies QSFP EEPROM memory
mode, which could be "upper memory flat" or "paged". Flat memory mode is
coded "1", and indicates that only page 00h is implemented in EEPROM.
Paged memory is coded "0" and indicates that pages 00h, 01h, 02h, 10h
and 11h are implemented. Pages 10h and 11h are currently not supported
by the driver.

"Flat" memory mode is used for the passive copper transceivers. For this
type only page 00h (256 bytes) is available. "Paged" memory is used for
the optical transceivers. For this type pages 00h (256 bytes), 01h (128
bytes) and 02h (128 bytes) are available. Upper page 01h contains static
advertising field, while upper page 02h contains the module-defined
thresholds and lane-specific monitors.

Extend enumerator 'mlxsw_reg_mcia_eeprom_module_info_id' with additional
field 'MLXSW_REG_MCIA_EEPROM_MODULE_INFO_TYPE_ID'. This field is used to
indicate for QSFP-DD transceiver type which memory mode is to be used.

Expose 256 bytes buffer for QSFP-DD passive copper transceiver and
512 bytes buffer for optical.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 13:28:02 -07:00
David S. Miller
0082dd8ae1 mlx5-updates-2020-07-28
Misc and small update to mlx5 driver:
 
 1) Aya adds PCIe relaxed ordering support for mlx5 netdev queues.
 2) Eran Refactors pages data base to be per vf/function to speedup
    unload time.
 3) Parav changes eswitch steering initialization to account for
    tota_vports rather than for only active vports and
    Link non uplink representors to PCI device, for uniform naming scheme.
 
 4) Tariq, trivial RX code improvements and missing inidirect calls
    wrappers.
 
 5) Small cleanup patches
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Merge tag 'mlx5-updates-2020-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2020-07-28

Misc and small update to mlx5 driver:

1) Aya adds PCIe relaxed ordering support for mlx5 netdev queues.
2) Eran Refactors pages data base to be per vf/function to speedup
   unload time.
3) Parav changes eswitch steering initialization to account for
   tota_vports rather than for only active vports and
   Link non uplink representors to PCI device, for uniform naming scheme.

4) Tariq, trivial RX code improvements and missing inidirect calls
   wrappers.

5) Small cleanup patches
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 13:23:31 -07:00
Vaibhav Gupta
f21bbd6330 farsync: use generic power management
The .suspend() and .resume() callbacks are not defined for this driver.
Still, their power management structure follows the legacy framework. To
bring it under the generic framework, simply remove the binding of
callbacks from "struct pci_driver".

Change code indentation from space to tab in "struct pci_driver".

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 12:56:52 -07:00
Julia Lawall
22f9d2f4ee net/mlx5: drop unnecessary list_empty
list_for_each_entry is able to handle an empty list.
The only effect of avoiding the loop is not initializing the
index variable.
Drop list_empty tests in cases where these variables are not
used.

Note that list_for_each_entry is defined in terms of list_first_entry,
which indicates that it should not be used on an empty list.  But in
list_for_each_entry, the element obtained by list_first_entry is not
really accessed, only the address of its list_head field is compared
to the address of the list head, so the list_first_entry is safe.

The semantic patch that makes this change is as follows (with another
variant for the no brace case): (http://coccinelle.lip6.fr/)

<smpl>
@@
expression x,e;
iterator name list_for_each_entry;
statement S;
identifier i;
@@

-if (!(list_empty(x))) {
   list_for_each_entry(i,x,...) S
- }
 ... when != i
? i = e
</smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:57 -07:00
Gustavo A. R. Silva
c8b838d108 net/mlx5: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:55 -07:00
Alex Vesker
ffdc8ec0b7 net/mlx5: DR, Reduce print level for matcher print
There is no need to print on each unsuccessful matcher
ip_version combination since it probably will happen when
trying to create all the possible combinations.
On a real failure we have a print in the calling function.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:52 -07:00
Aya Levin
17347d5430 net/mlx5e: Add support for PCI relaxed ordering
The concept of Relaxed Ordering in the PCI Express environment allows
switches in the path between the Requester and Completer to reorder some
transactions just received before others that were previously enqueued.

In ETH driver, there is no question of write integrity since each memory
segment is written only once per cycle. In addition, the driver doesn't
access the memory shared with the hardware until the corresponding CQE
arrives indicating all PCI transactions are done.

Running TCP single stream over ConnectX-4 LX, ARM CPU on remote-numa has
300% improvement in the bandwidth.

With relaxed ordering turned off: BW:10 [GB/s]
With relaxed ordering turned on: BW:40 [GB/s]

The driver turns relaxed ordering with respect to the firmware
capabilities and the return value from pcie_relaxed_ordering_enabled().

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:49 -07:00
Tariq Toukan
5d0b847694 net/mlx5e: Use indirect call wrappers for RX post WQEs functions
Use the indirect call wrapper API macros for declaration and scope
of the RX post WQEs functions.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:47 -07:00
Tariq Toukan
b307f7f163 net/mlx5e: Move exposure of datapath function to txrx header
Move them from the generic header file "en.h", to the
datapath header file "txrx.h".

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:44 -07:00
Tariq Toukan
5adf4c475a net/mlx5e: RX, Re-work initializaiton of RX function pointers
Instead of exposing the RQ datapath handlers (from en_rx.c) so that
they are set in the control path (in en_main.c), wrap this logic
in a single function in en_rx.c and expose it alone.

Every profile will now have a pointer to the new mlx5e_rx_handlers
structure, instead of directly pointing to the previously-exposed
RQ handlers.

This significantly improves locality and modularity of the driver,
and allows many functions in en_rx.c to become static.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:41 -07:00
Parav Pandit
123f0f53dd net/mlx5e: Link non uplink representors to PCI device
Currently PF and VF representors are exposed as virtual device.
They are not linked to its parent PCI device like how uplink
representor is linked.
Due to this, PF and VF representors cannot benefit of the
systemd defined naming scheme. This requires special handling
by the users.

Hence, link the PF and VF representors to their parent PCI device
similar to existing uplink representor netdevice.

Example:
udevadm output before linking to PCI device:
$ udevadm test-builtin net_id  /sys/class/net/eth6
Load module index
Network interface NamePolicy= disabled on kernel command line, ignoring.
Parsed configuration file /usr/lib/systemd/network/99-default.link
Created link configuration context.
Using default interface naming scheme 'v243'.
ID_NET_NAMING_SCHEME=v243
Unload module index
Unloaded link configuration context.

udevadm output after linking to PCI device:
$ udevadm test-builtin net_id /sys/class/net/eth6
Load module index
Network interface NamePolicy= disabled on kernel command line, ignoring.
Parsed configuration file /usr/lib/systemd/network/99-default.link
Created link configuration context.
Using default interface naming scheme 'v243'.
ID_NET_NAMING_SCHEME=v243
ID_NET_NAME_PATH=enp0s8f0npf0vf0
Unload module index
Unloaded link configuration context.

In past there was little concern over seeing 10,000 lines output
showing up at thread [1] is not applicable as ndo ops for VF
handling is not exposed for all the 100 repesentors for mlx5 devices.

Additionally alternative device naming [2] to overcome shorter device
naming is also part of the latest systemd release v245.

[1] https://marc.info/?l=linux-netdev&m=152657949117904&w=2
[2] https://lwn.net/Articles/814068/

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:39 -07:00
Parav Pandit
8d6bd3c339 net/mlx5: E-switch, Use eswitch total_vports
Currently steering table and rx group initialization helper
routines works on the total_vports passed as input parameter.

Both eswitch helpers work on the mlx5_eswitch and thereby have access
to esw->total_vports. Hence use it directly instead of passing it
via function input arguments.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:36 -07:00
Parav Pandit
0da3c12dd6 net/mlx5: E-switch, Reuse total_vports and avoid duplicate nvports
Total e-switch vports are already stored in mlx5_eswitch total_vports.
Avoid copy of it in nvports and reuse existing total_vports calculation.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:34 -07:00
Parav Pandit
8b95bda47c net/mlx5: E-switch, Consider maximum vf vports for steering init
When eswitch is enabled, VFs might not be enabled. Hence, consider
maximum number of VFs.
This further closes the gap between handling VF vports between ECPF and
PF.

Fixes: ea2128fd63 ("net/mlx5: E-switch, Reduce dependency on num_vfs during mode set")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:31 -07:00
Avihu Hagag
c1a0969ee8 net/mlx5: Add function ID to reclaim pages debug log
Add function ID to reclaim pages debug log for better user visibility.

Signed-off-by: Avihu Hagag <avihuh@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:29 -07:00
Eran Ben Elisha
d6945242f4 net/mlx5: Hold pages RB tree per VF
Per page request event, FW request to allocated or release pages for a
single function. Driver maintains FW pages object per function, so there
is no need to hold one global page data-base. Instead, have a page
data-base per function, which will improve performance release flow in all
cases, especially for "release all pages".

As the range of function IDs is large and not sequential, use xarray to
store a per function ID page data-base, where the function ID is the key.

Upon first allocation of a page to a function ID, create the page
data-base per function. This data-base will be released only at pagealloc
mechanism cleanup.

NIC: ConnectX-4 Lx
CPU: Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz
Test case: 32 VFs, measure release pages on one VF as part of FLR
Before: 0.021 Sec
After:  0.014 Sec

The improvement depends on amount of VFs and memory utilization
by them. Time measurements above were taken from idle system.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-28 02:37:26 -07:00
Gustavo A. R. Silva
5e619d73e6 net/mlx4: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 13:14:10 -07:00
David S. Miller
a02d26fe48 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Tony Nguyen says:

====================
1GbE Intel Wired LAN Driver Updates 2020-07-27

This series contains updates to igc driver only.

Sasha cleans up double definitions, unneeded and non applicable
registers, and removes unused fields in structs. Ensures the Receive
Descriptor Minimum Threshold Count is cleared and fixes a static checker
error.

v2: Remove fields from hw_stats in patches that removed their uses.
Reworded patch descriptions for patches 1, 2, and 4.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 13:11:57 -07:00
Edward Cree
1c74884387 sfc_ef100: implement ndo_get_phys_port_{id,name}
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:26:56 -07:00
Edward Cree
29ec1b27e7 sfc_ef100: read device MAC address at probe time
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:26:56 -07:00
Edward Cree
99a23c1168 sfc_ef100: probe the PHY and configure the MAC
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:26:56 -07:00
Edward Cree
4e5675bbab sfc_ef100: actually perform resets
In ef100_reset(), make the MCDI call to do the reset.
Also, do a reset at start-of-day during probe, to put the function in
 a clean state.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:26:56 -07:00
Edward Cree
d802b0ae65 sfc_ef100: extend ef100_check_caps to cover datapath_caps3
MC_CMD_GET_CAPABILITIES now has a third word of flags; extend the
 efx_has_cap() machinery to cover it.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:26:55 -07:00
Edward Cree
f65731207d sfc_ef100: read datapath caps, implement check_caps
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:26:55 -07:00
Edward Cree
5e4ef67346 sfc_ef100: process events for MCDI completions
Currently RX and TX-completion events are unhandled, as neither the RX
 nor the TX path has been implemented yet.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27 12:26:55 -07:00