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Author SHA1 Message Date
Prabhakar Kushwaha
6c95dd8f0a qed: Update debug related changes
qed_debug features are updated to support FW version 8.59.1.0 along
with few enhancements.
  - Removal of _BB_K2 from register defines.
  - Add new condition cond14.
  - Add dump of new area sw-platform, epoch, iscsi_task_pages,
    fcoe_task_pages, roce_task_pages and eth_task_pages.
  - Introduced new functions qed_dbg_phy_size().
  - Update in qed_mcp_nvm_rd_cmd() declaration.
  - Allow QED to control init/exit at pf level.
  - Dump partial "ILT-dump" if buffer size is not sufficient.

This patch also fixes the existing checkpatch warnings and few important
checks.

Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-04 12:55:49 +01:00
Prabhakar Kushwaha
e2dbc22376 qed: Add '_GTT' suffix to the IRO RAM macros
GTT (Global translation table) is a fast-access window in the BAR into
the register space, which only maps certain register addresses.
This change helps enforce that only those addresses which are indeed
mapped by the GTT are being accessed through it.

Adding the '_GTT' suffix to the IRO FW memory (“RAM”) macros that
access GTT-able region in FW memories (“RAM”) and use GTT macros
to access RAM BAR from drivers.

Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-04 12:55:49 +01:00
Omkar Kulkarni
b90cb5385a qed: Update FW init functions to support FW 8.59.1.0
The qed_init_fw_func.c and qed_init_ops.c updated to support FW
version 8.59.1.0.
  - Support 16-bit VPORT WFQ (weighted fair queueing) weights.
  - Support WFQ (weighted fair queueing) weight per VPORT + TC.
  - Support allocation of Tx PQs(physical queues) per PF,VF.
  - Modify Global RL (rate limiter) upper bound configuration.
  - Update FW operation functions.
  - Update iro_arr[] array.

This patch also fixes the existing checkpatch warnings and few important
checks.

Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-04 12:55:49 +01:00
Omkar Kulkarni
ee824f4bcc qed: Split huge qed_hsi.h header file
The qed_hsi.h is a huge header file containing HSI (Hardware Software
Interface) definitions of storm memory access, debug related, general
and management firmware specific. In order to have a better
code-organization HSI definition, this patch split the code across
multiple files, i.e.
- storm memory access HSI : qed_iro_hsi.h
- debug related HSI       : qed_dbg_hsi.h
- Management firmware HSI : qed_mfg_hsi.h
- General HSI             : qed_hsi.h

In addition, this patch also fixes existing checkpatch warnings and
few important checks.

Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-04 12:55:48 +01:00
Shai Malin
fb09a1ed5c qed: Remove e4_ and _e4 from FW HSI
The existing qed/qede/qedr/qedi/qedf code uses chip-specific naming in
structures,  functions, variables and defines in FW HSI (Hardware
Software Interface).

The new FW version introduced a generic naming convention in HSI
in-which the same code will be used across different versions
for simpler maintainability. It also eases in providing support for
new features.

With this patch every "_e4" or "e4_" prefix or suffix is not needed
anymore and it will be removed.

Reviewed-by: Manish Rangankar <mrangankar@marvell.com>
Reviewed-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-04 12:55:48 +01:00
Prabhakar Kushwaha
19198e4ec9 qed: Fix kernel-doc warnings
This patch fixes all the qed and qede kernel-doc warnings
according to the guidelines that are described in
Documentation/doc-guide/kernel-doc.rst.

Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-04 12:55:48 +01:00
Shai Malin
7a3febed44 qed: Remove the qed module version
Removing the qed module version which is not needed and not allowed
with inbox drivers.

Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-29 15:41:06 +01:00
Prabhakar Kushwaha
203d136e89 qed: Add support of HW filter block
This patch introduces the functionality of HW filter block.
It adds and removes filters based on source and target TCP port.

It also add functionality to clear all filters at once.

Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-03 14:04:17 -07:00
Shai Malin
897e87a10c qed: Add NVMeTCP Offload PF Level FW and HW HSI
This patch introduces the NVMeTCP device and PF level HSI and HSI
functionality in order to initialize and interact with the HW device.
The patch also adds qed NVMeTCP personality.

This patch is based on the qede, qedr, qedi, qedf drivers HSI.

Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dean Balandin <dbalandin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-03 14:04:17 -07:00
Allen Pais
b5f0a3bfc1 qed: convert tasklets to use new tasklet_setup() API
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <apais@linux.microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-14 13:02:38 -07:00
Igor Russkikh
b228cb1602 qed*: make use of devlink recovery infrastructure
Remove forcible recovery trigger and put it as a normal devlink
callback.

This allows user to enable/disable it via

    devlink health set pci/0000:03:00.0 reporter fw_fatal auto_recover false

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:33 -07:00
Igor Russkikh
53916a67c3 qed: implement devlink info request
Here we return existing fw & mfw versions, we also fetch device's
serial number:

~$ sudo ~/iproute2/devlink/devlink  dev info
pci/0000:01:00.1:
  driver qed
  board.serial_number REE1915E44552
  versions:
      running:
        fw.app 8.42.2.0
      stored:
        fw.mgmt 8.52.10.0

MFW and FW are different firmwares on device.
Management is a firmware responsible for link configuration and
various control plane features. Its permanent and resides in NVM.

Running FW (or fastpath FW) is an embedded microprogram implementing
all the packet processing, offloads, etc. This FW is being loaded
on each start by the driver from FW binary blob.

The base device specific structure (qed_dev_info) was not directly
available to the base driver before. Thus, here we create and store
a private copy of this structure in qed_dev root object to
access the data.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:32 -07:00
Igor Russkikh
755f982bb1 qed/qede: make devlink survive recovery
Devlink instance lifecycle was linked to qed_dev object,
that caused devlink to be recreated on each recovery.

Changing it by making higher level driver (qede) responsible for its
life. This way devlink now survives recoveries.

qede now stores devlink structure pointer as a part of its device
object, devlink private data contains a linkage structure,
qed_devlink.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:32 -07:00
Alexander Lobakin
99785a87fc qed: add support for the extended speed and FEC modes
Add all necessary code (NVM parsing, MFW and Ethtool reports etc.) to
support extended speed and FEC modes.
These new modes are supported by the new boards revisions and newer
MFW versions.

Misc: correct port type for MEDIA_KR.

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>
2020-07-20 17:59:44 -07:00
Alexander Lobakin
e9a5eb8564 qed: remove unused qed_hw_info::port_mode and QED_PORT_MODE
Struct field qed_hw_info::port_mode isn't used anywhere in the code, so
can be safely removed to prevent possible dead code addition.
Also remove the enumeration QED_PORT_MODE orphaned after this deletion.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20 17:59:44 -07:00
Alexander Lobakin
5d4193c641 qed: reformat several structures a bit
Reformat a few nvm_cfg* structures (and partly qed_dev) prior to adding
new fields and definitions.

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>
2020-07-20 17:59:44 -07:00
David S. Miller
71930d6102 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
All conflicts seemed rather trivial, with some guidance from
Saeed Mameed on the tc_ct.c one.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-11 00:46:00 -07:00
Alexander Lobakin
da3287111a net: qed: fix buffer overflow on ethtool -d
When generating debug dump, driver firstly collects all data in binary
form, and then performs per-feature formatting to human-readable if it
is supported.

For ethtool -d, this is roughly incorrect for two reasons. First of all,
drivers should always provide only original raw dumps to Ethtool without
any changes.
The second, and more critical, is that Ethtool's output buffer size is
strictly determined by ethtool_ops::get_regs_len(), and all data *must*
fit in it. The current version of driver always returns the size of raw
data, but the size of the formatted buffer exceeds it in most cases.
This leads to out-of-bound writes and memory corruption.

Address both issues by adding an option to return original, non-formatted
debug data, and using it for Ethtool case.

v2:
 - Expand commit message to make it more clear;
 - No functional changes.

Fixes: c965db4446 ("qed: Add support for debug data collection")
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>
2020-07-07 15:42:31 -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
Linus Torvalds
818dbde78e SCSI misc on 20200605
This series consists of the usual driver updates (qla2xxx, ufs, zfcp,
 target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
 of other minor updates.  There are no major core changes in this
 series apart from a refactoring in scsi_lib.c.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 :This series consists of the usual driver updates (qla2xxx, ufs, zfcp,
  target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
  of other minor updates.

  There are no major core changes in this series apart from a
  refactoring in scsi_lib.c"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits)
  scsi: ufs: ti-j721e-ufs: Fix unwinding of pm_runtime changes
  scsi: cxgb3i: Fix some leaks in init_act_open()
  scsi: ibmvscsi: Make some functions static
  scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim
  scsi: ufs: Fix WriteBooster flush during runtime suspend
  scsi: ufs: Fix index of attributes query for WriteBooster feature
  scsi: ufs: Allow WriteBooster on UFS 2.2 devices
  scsi: ufs: Remove unnecessary memset for dev_info
  scsi: ufs-qcom: Fix scheduling while atomic issue
  scsi: mpt3sas: Fix reply queue count in non RDPQ mode
  scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event
  scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd()
  scsi: vhost: Notify TCM about the maximum sg entries supported per command
  scsi: qla2xxx: Remove return value from qla_nvme_ls()
  scsi: qla2xxx: Remove an unused function
  scsi: iscsi: Register sysfs for iscsi workqueue
  scsi: scsi_debug: Parser tables and code interaction
  scsi: core: Refactor scsi_mq_setup_tags function
  scsi: core: Fix incorrect usage of shost_for_each_device
  scsi: qla2xxx: Fix endianness annotations in source files
  ...
2020-06-05 15:11:50 -07:00
Igor Russkikh
936c7ba4dd net: qed: attention clearing properties
On different hardware events we have to respond differently,
on some of hardware indications hw attention (error condition)
should be cleared by the driver to continue normal functioning.

Here we introduce attention clear flags, and put them on some
important events (in aeu_descs).

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14 13:25:46 -07:00
Igor Russkikh
ca352f0075 net: qed: cleanup debug related declarations
Thats probably a legacy code had double declaration of some fields.
Cleanup this, removing copy and fixing references.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14 13:25:46 -07:00
Igor Russkikh
d639836ab3 net: qed: adding hw_err states and handling
Here we introduce qed device error tracking flags and error types.

qed_hw_err_notify is an entrace point to report errors.
It'll notify higher level drivers (qede/qedr/etc) to handle and recover
the error.

List of posible errors comes from hardware interfaces, but could be
extended in future.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14 13:25:46 -07:00
Sudarsana Reddy Kalluru
699fed4a2d scsi: qed: Send BW update notifications to the protocol drivers
Management firmware (MFW) sends a notification whenever there is a change
in the bandwidth values. Add driver support for sending this notification
to the upper layer drivers (e.g., qedf).

Link: https://lore.kernel.org/r/20200416084314.18851-6-skashyap@marvell.com
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:26 -04:00
Michal Kalderon
2d22bc8354 qed: FW 8.42.2.0 debug features
Add to debug dump more information on the platform it was collected
from (pci func, path id).
Provide human readable reg fifo erros.

Removed static debug arrays from HSI Functions, and move them to
the hwfn.

Some structures were slightly changed (removing reserved chip id
for example) which lead to many long initializations being modified
with one parameter less during initialization. This leads to
some long diffs that don't really change anything.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27 14:35:32 +01:00
Michal Kalderon
8a52bbab39 qed: Debug feature: ilt and mdump
Part of the FW drop includes new debug capabilities implemented in the
qed_debug file. This patch dumps additional information during ethtool -d
for better debugging. The data dumped is the ilt (internal logical table)
and information gathered by the management firmware incase there was a
crash and driver was not able to extract the information (mdump).

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27 14:35:32 +01:00
Michal Kalderon
30d5f85895 qed: FW 8.42.2.0 Add fw overlay feature
This feature enables the FW to page out FW code when required

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27 14:35:32 +01:00
Michal Kalderon
1392d19ff1 qed: Add abstraction for different hsi values per chip
The number of BTB blocks was modified to be different between the two chip
flavors supported (BB/K2) as a result, this lead to a re-write of selecting
the default hsi value based on the chip.
This patch creates a lookup table for hsi values per chip rather than
ask again and again for every value.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27 14:35:32 +01:00
Michal Kalderon
997af5df23 qed: FW 8.42.2.0 Additional ll2 type
LL2 queues were a limited resource due to FW constraints.
This FW introduced a new resource which is a context based ll2 queue
(memory on host). The additional ll2 queues are required for RDMA SRIOV.
The code refers to the previous ll2 queues as ram-based or legacy, and the
new queues as ctx-based.
This change decreased the "legacy" ram-based queues therefore the first ll2
queue used for iWARP was converted to the ctx-based ll2 queue.
This feature also exposed a bug in the DIRECT_REG_WR64 macro implementation
which didn't have an effect in other use cases.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27 14:35:32 +01:00
Michal Kalderon
2924e06999 qed: FW 8.42.2.0 Internal ram offsets modifications
IRO stands for internal RAM offsets. Updating the FW binary produces
different iro offsets. This file contains the different values,
and a new representation of the values.
Update the FW version

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27 14:35:32 +01:00
Michal Kalderon
24e04879ab qed: Add qed devlink parameters table
The table currently contains a single parameter for
configuring whether iWARP should be enabled on a 100g
device. Enabling iWARP on a 100g device impacts L2
performance and is therefore not enabled by default.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-26 13:04:12 -07:00
Michal Kalderon
79284adeb9 qed: Add llh ppfid interface and 100g support for offload protocols
This patch refactors the current llh implementation. It exposes a hw
resource called ppfid (port-pfid) and implements an API for configuring
the resource. Default configuration which was used until now limited
the number of filters per PF and did not support engine affinity per
protocol. The new API enables allocating more filter rules per PF and
enables affinitizing protocol packets to a certain engine which
enables full 100g protocol offload support.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-26 13:04:11 -07:00
David S. Miller
6b0a7f84ea Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflict resolution of af_smc.c from Stephen Rothwell.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-17 11:26:25 -07:00
Denis Bolotin
0d72c2ac89 qed: Fix the DORQ's attentions handling
Separate the overflow handling from the hardware interrupt status analysis.
The interrupt status is a single register and is common for all PFs. The
first PF reading the register is not necessarily the one who overflowed.
All PFs must check their overflow status on every attention.
In this change we clear the sticky indication in the attention handler to
allow doorbells to be processed again as soon as possible, but running
the doorbell recovery is scheduled for the periodic handler to reduce the
time spent in the attention handler.
Checking the need for DORQ flush was changed to "db_bar_no_edpm" because
qed_edpm_enabled()'s result could change dynamically and might have
prevented a needed flush.

Signed-off-by: Denis Bolotin <dbolotin@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:59:49 -07:00
Denis Bolotin
d4476b8a61 qed: Fix missing DORQ attentions
When the DORQ (doorbell block) is overflowed, all PFs get attentions at the
same time. If one PF finished handling the attention before another PF even
started, the second PF might miss the DORQ's attention bit and not handle
the attention at all.
If the DORQ attention is missed and the issue is not resolved, another
attention will not be sent, therefore each attention is treated as a
potential DORQ attention.
As a result, the attention callback is called more frequently so the debug
print was moved to reduce its quantity.
The number of periodic doorbell recovery handler schedules was reduced
because it was the previous way to mitigating the missed attention issue.

Signed-off-by: Denis Bolotin <dbolotin@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:59:49 -07:00
Denis Bolotin
9ac6bb1414 qed: Delete redundant doorbell recovery types
DB_REC_DRY_RUN (running doorbell recovery without sending doorbells) is
never used. DB_REC_ONCE (send a single doorbell from the doorbell recovery)
is not needed anymore because by running the periodic handler we make sure
we check the overflow status later instead.
This patch is needed because in the next patches, the only doorbell
recovery type being used is DB_REC_REAL_DEAL, and the fixes are much
cleaner without this enum.

Signed-off-by: Denis Bolotin <dbolotin@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-14 13:59:48 -07:00
Sudarsana Reddy Kalluru
1a3ca25062 qed: Define new MF bit for no_vlan config
The patch introduces a new Multi-Function bit for cases where firmware
shouldn't perform the insertion of vlan-0 tag. The new bit is defined to
abstract the implementation from the actual MF mode.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-20 11:12:50 -07:00
Sudarsana Reddy Kalluru
0ebcebbef1 qed: Read device port count from the shmem
Read port count from the shared memory instead of driver deriving this
value. This change simplifies the driver implementation and also avoids
any dependencies for finding the port-count.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-21 10:51:08 -08:00
David S. Miller
a655fe9f19 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
An ipvlan bug fix in 'net' conflicted with the abstraction away
of the IPV6 specific support in 'net-next'.

Similarly, a bug fix for mlx5 in 'net' conflicted with the flow
action conversion in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 15:00:17 -08:00
Manish Chopra
42dbcd6b25 qed*: Advance drivers version to 8.37.0.20
Version update for qed/qede modules.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:53:33 -08:00
Tomer Tayar
64515dc899 qed: Add infrastructure for error detection and recovery
This patch adds the detection and handling of a parity error ("process kill
event"), including the update of the protocol drivers, and the prevention
of any HW access that will lead to device access towards the host while
recovery is in progress.
It also provides the means for the protocol drivers to trigger a recovery
process on their decision.

Signed-off-by: Tomer Tayar <tomer.tayar@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-28 10:58:41 -08:00
Tomer Tayar
666db4862f qed: Revise load sequence to avoid PCI errors
Initiating final cleanup after an ungraceful driver unload can lead to bad
PCI accesses towards the host.
This patch revises the load sequence so final cleanup is sent while the
internal master enable is cleared, to prevent the host accesses, and clears
the internal error indications just before enabling the internal master
enable.

Signed-off-by: Tomer Tayar <tomer.tayar@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-28 10:58:41 -08:00
Ariel Elior
a1b469b8b1 qed: Use the doorbell overflow recovery mechanism in case of doorbell overflow
In case of an attention from the doorbell queue block, analyze the HW
indications. In case of a doorbell overflow, execute a doorbell recovery.
Since there can be spurious indications (race conditions between multiple PFs),
schedule a periodic task for checking whether a doorbell overflow may have been
missed. After a set time with no indications, terminate the periodic task.

Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-30 13:45:13 -08:00
Ariel Elior
36907cd5cd qed: Add doorbell overflow recovery mechanism
Add the database used to register doorbelling entities, and APIs for adding
and deleting entries, and logic for traversing the database and doorbelling
once on behalf of all entities.

Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-30 13:45:12 -08:00
Rahul Verma
706d08913d qed: Align local and global PTT to propagate through the APIs.
Align the use of local PTT to propagate through the qed_mcp* API's.
    Global ptt should not be used.

    Register access should be done through layers. Register address is
    mapped into a PTT, PF translation table. Several interface functions
    require a PTT to direct read/write into register. There is a pool of
    PTT maintained, and several PTT are used simultaneously to access
    device registers in different flows. Same PTT should not be used in
    flows that can run concurrently.
    To avoid running out of PTT resources, too many PTT should not be
    acquired without releasing them. Every PF has a global PTT, which is
    used throughout the life of PF, in most important flows for register
    access. Generic functions acquire the PTT locally and release after
    the use. This patch aligns the use of Global PTT and Local PTT
    accordingly.

Signed-off-by: Rahul Verma <rahul.verma@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-16 10:04:28 -07:00
Denis Bolotin
a3f723079d qed*: Utilize FW 8.37.7.0
This patch adds a new qed firmware with fixes and support for new features.

Fixes:
- Fix a rare case of device crash with iWARP, iSCSI or FCoE offload.
- Fix GRE tunneled traffic when iWARP offload is enabled.
- Fix RoCE failure in ib_send_bw when using inline data.
- Fix latency optimization flow for inline WQEs.
- BigBear 100G fix

RDMA:
- Reduce task context size.
- Application page sizes above 2GB support.
- Performance improvements.

ETH:
- Tenant DCB support.
- Replace RSS indirection table update interface.

Misc:
- Debug Tools changes.

Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-06 07:44:35 -07:00
Denis Bolotin
61be82b087 qed: Add Multi-TC RoCE support
RoCE qps use a pair of physical queues (pq) received from the Queue Manager
(QM) - an offload queue (OFLD) and a low latency queue (LLT). The QM block
creates a pq for each TC, and allows RoCE qps to ask for a pq with a
specific TC. As a result, qps with different VLAN priorities can be mapped
to different TCs, and employ features such as PFC and ETS.

Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-07 13:22:10 -07:00
Denis Bolotin
c4259dda17 qed: Add a flag which indicates if offload TC is set
Distinguish not set offload_tc from offload_tc 0 and add getters and
setters.

Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-07 13:22:10 -07:00
Denis Bolotin
5e7ba042fd qed: Fix reading stale configuration information
Configuration information read at driver load can become stale after it is
updated. Mark information as not valid and re-populate when this happens.

Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-05 13:27:09 +09:00