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Author SHA1 Message Date
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
Omkar Kulkarni
1bd4f5716f qed: Add TCP_ULP FW resource layout
Add TCP_ULP as a storage common TCP offload FW resource layout.
This will be used by the core driver (QED) for both the NVMeTCP and iSCSI.

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: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@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
David S. Miller
3ab0a7a0c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Two minor conflicts:

1) net/ipv4/route.c, adding a new local variable while
   moving another local variable and removing it's
   initial assignment.

2) drivers/net/dsa/microchip/ksz9477.c, overlapping changes.
   One pretty prints the port mode differently, whilst another
   changes the driver to try and obtain the port mode from
   the port node rather than the switch node.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-22 16:45:34 -07:00
Dmitry Bogdanov
2d2fe84337 net: qed: Disable aRFS for NPAR and 100G
In CMT and NPAR the PF is unknown when the GFS block processes the
packet. Therefore cannot use searcher as it has a per PF database,
and thus ARFS must be disabled.

Fixes: d51e4af5c2 ("qed: aRFS infrastructure support")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-09 14:28:18 -07:00
Jakub Kicinski
44a8c4f33c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
We got slightly different patches removing a double word
in a comment in net/ipv4/raw.c - picked the version from net.

Simple conflict in drivers/net/ethernet/ibm/ibmvnic.c. Use cached
values instead of VNIC login response buffer (following what
commit 507ebe6444 ("ibmvnic: Fix use-after-free of VNIC login
response buffer") did).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-09-04 21:28:59 -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
Gustavo A. R. Silva
df561f6688 treewide: 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>
2020-08-23 17:36:59 -05:00
David S. Miller
a57066b1a0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The UDP reuseport conflict was a little bit tricky.

The net-next code, via bpf-next, extracted the reuseport handling
into a helper so that the BPF sk lookup code could invoke it.

At the same time, the logic for reuseport handling of unconnected
sockets changed via commit efc6b6f6c3
which changed the logic to carry on the reuseport result into the
rest of the lookup loop if we do not return immediately.

This requires moving the reuseport_has_conns() logic into the callers.

While we are here, get rid of inline directives as they do not belong
in foo.c files.

The other changes were cases of more straightforward overlapping
modifications.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-25 17:49:04 -07:00
Alexander Lobakin
a08c9b2c7c qed: move chain methods to a separate file
Move chain allocation/freeing functions to a new file to not mix it with
hardware-related code.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-22 18:19:03 -07:00
Alexander Lobakin
eb61c2d699 qed: suppress false-positives interrupt error messages on HW init
It was found that qed_pglueb_rbc_attn_handler() can produce a lot of
false-positive error detections on driver load/reload (especially after
crashes/recoveries) and spam the kernel log:

[    4.958275] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d00ff0
[ 2079.146764] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[ 2116.374631] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[ 2135.250564] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[...]

Reduce the logging level of two false-positive prone error messages from
notice to verbose on initialization (only) to not mix it with real error
attentions while debugging.

Fixes: 666db4862f ("qed: Revise load sequence to avoid PCI errors")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-21 16:07:34 -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
a396818c08 qed: add support for new port modes
These ports ship on new boards revisions and are supported by newer
firmware versions.

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
ae7e69379f qed: add support for Forward Error Correction
Add all necessary routines for reading supported FEC modes from NVM and
querying FEC control to the MFW (if the running version supports it).

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
Sudarsana Reddy Kalluru
13cf8aab74 qed: Populate nvm-file attributes while reading nvm config partition.
NVM config file address will be modified when the MBI image is upgraded.
Driver would return stale config values if user reads the nvm-config
(via ethtool -d) in this state. The fix is to re-populate nvm attribute
info while reading the nvm config values/partition.

Changes from previous version:
-------------------------------
v3: Corrected the formatting in 'Fixes' tag.
v2: Added 'Fixes' tag.

Fixes: 1ac4329a1c ("qed: Add configuration information to register dump and debug data")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 12:30:25 -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
10f468ea5c net: qed: fix "maybe uninitialized" warning
Variable 'abs_ppfid' in qed_dev.c:qed_llh_add_mac_filter() always gets
printed, but is initialized only under 'ref_cnt == 1' condition. This
results in:

In file included from ./include/linux/kernel.h:15:0,
                 from ./include/asm-generic/bug.h:19,
                 from ./arch/x86/include/asm/bug.h:86,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/io.h:11,
                 from drivers/net/ethernet/qlogic/qed/qed_dev.c:35:
drivers/net/ethernet/qlogic/qed/qed_dev.c: In function 'qed_llh_add_mac_filter':
./include/linux/printk.h:358:2: warning: 'abs_ppfid' may be used uninitialized
in this function [-Wmaybe-uninitialized]
  printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
  ^~~~~~
drivers/net/ethernet/qlogic/qed/qed_dev.c:983:17: note: 'abs_ppfid' was declared
here
  u8 filter_idx, abs_ppfid;
                 ^~~~~~~~~

...under W=1+.

Fix this by initializing it with zero.

Fixes: 79284adeb9 ("qed: Add llh ppfid interface and 100g support for offload protocols")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:01:16 -07:00
Alexander Lobakin
31333c1a25 net: qed: fix async event callbacks unregistering
qed_spq_unregister_async_cb() should be called before
qed_rdma_info_free() to avoid crash-spawning uses-after-free.
Instead of calling it from each subsystem exit code, do it in one place
on PF down.

Fixes: 291d57f67d ("qed: Fix rdma_info structure allocation")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:01:16 -07:00
Yuval Basson
b8204ad878 qed: changes to ILT to support XRC
First ILT page for TSDM client is allocated for XRC-SRQ's.
For regular SRQ's skip first ILT page that is reserved for
XRC-SRQ's.

Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Yuval Bason <ybason@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-21 17:08:25 -07:00
Igor Russkikh
2ec276d5b2 net: qed: invoke err notify on critical areas
In a number of critical places not only debug trace should be printed,
but the appropriate hw error condition should be raised and error
handling/recovery should start.

Introduce our new qed_hw_err_notify invocation in these places to
record and indicate critical error conditions in hardware.

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
Jason Yan
82ebc88909 qed: use true,false for bool variables
Fix the following coccicheck warning:

drivers/net/ethernet/qlogic/qed/qed_dev.c:4395:2-34: WARNING:
Assignment of 0/1 to bool variable
drivers/net/ethernet/qlogic/qed/qed_dev.c:1975:2-34: WARNING:
Assignment of 0/1 to bool variable

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-20 12:52:58 -07:00
Yuval Basson
8063f761cd qed: Fix use after free in qed_chain_free
The qed_chain data structure was modified in
commit 1a4a69751f ("qed: Chain support for external PBL") to support
receiving an external pbl (due to iWARP FW requirements).
The pages pointed to by the pbl are allocated in qed_chain_alloc
and their virtual address are stored in an virtual addresses array to
enable accessing and freeing the data. The physical addresses however
weren't stored and were accessed directly from the external-pbl
during free.

Destroy-qp flow, leads to freeing the external pbl before the chain is
freed, when the chain is freed it tries accessing the already freed
external pbl, leading to a use-after-free. Therefore we need to store
the physical addresses in additional to the virtual addresses in a
new data structure.

Fixes: 1a4a69751f ("qed: Chain support for external PBL")
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Yuval Bason <ybason@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:45:18 -07:00
Dan Carpenter
d32a06f543 qed: Fix a error code in qed_hw_init()
If the qed_fw_overlay_mem_alloc() then we should return -ENOMEM instead
of success.

Fixes: 30d5f85895 ("qed: FW 8.42.2.0 Add fw overlay feature")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-02-01 11:35:17 -08:00
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
6bc82d9b7e qed: rt init valid initialization changed
The QM phase init tool can be invoked multiple times during
the driver lifetime. Part of the init comes from the runtime array.
The logic for setting the values did not init all values, basically
assuming the runtime array was all zeroes. But if it was invoked
multiple times, nobody was zeroing it after the first time.

In this change we zero the runtime array right after using it.

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
804c5702fc qed: Use dmae to write to widebus registers in fw_funcs
There are several wide-bus registers written to by the fw_funcs
that require using the dmae for atomicity. Therefore using the dmae
channel functionality was added to the fw_funcs file, since the code
is very similar to the previously used code, the structures used were
moved to qed_hsi. Due to FW conventions, the names of the flags in the
struct changed. Since this required slight modification in the places
that set the flags the code was modified to use GET/SET FIELD macros.

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
92fae6fb23 qed: FW 8.42.2.0 Queue Manager changes
This patch contains changes in initialization and usage of the QM blocks.
Instead of setting a rate limiter per vport the rate limiters are now a
global resource and set independentaly.

The patch also contains a field name change:
vport_wfq which is part of vport_params was renamed to wfq as the vport
prefix is redundant.

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
Arnd Bergmann
815deee0e3 qed: Fix -Wmaybe-uninitialized false positive
A previous attempt to shut up the uninitialized variable use
warning was apparently insufficient. When CONFIG_PROFILE_ANNOTATED_BRANCHES
is set, gcc-8 still warns, because the unlikely() check in DP_NOTICE()
causes it to no longer track the state of all variables correctly:

drivers/net/ethernet/qlogic/qed/qed_dev.c: In function 'qed_llh_set_ppfid_affinity':
drivers/net/ethernet/qlogic/qed/qed_dev.c:798:47: error: 'abs_ppfid' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  addr = NIG_REG_PPF_TO_ENGINE_SEL + abs_ppfid * 0x4;
                                     ~~~~~~~~~~^~~~~

This is not a nice workaround, but always initializing the output from
qed_llh_abs_ppfid() at least shuts up the false positive reliably.

Fixes: 79284adeb9 ("qed: Add llh ppfid interface and 100g support for offload protocols")
Fixes: 8e2ea3ea96 ("qed: Fix static checker warning")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-18 10:44:21 -07:00
Michal Kalderon
8e2ea3ea96 qed: Fix static checker warning
In some cases abs_ppfid could be printed without being initialized.

Fixes: 79284adeb9 ("qed: Add llh ppfid interface and 100g support for offload protocols")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-30 15:01:07 -07:00
Colin Ian King
1b3855aba8 qed: fix spelling mistake "inculde" -> "include"
There is a spelling mistake in a DP_INFO message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-29 13:25:43 -07:00
Michal Kalderon
8366d52001 qed: Set the doorbell address correctly
In 100g mode the doorbell bar is united for both engines. Set
the correct offset in the hwfn so that the doorbell returned
for RoCE is in the affined hwfn.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Denis Bolotin <denis.bolotin@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
b61b04ad81 qed: Fix the doorbell address sanity check
Fix the condition which verifies that doorbell address is inside the
doorbell bar by checking that the end of the address is within range
as well.

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
eaf2a47f40 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-29 21:18:54 -08:00
Manish Chopra
ffb057f989 qed: Fix stack out of bounds bug
KASAN reported following bug in qed_init_qm_get_idx_from_flags
due to inappropriate casting of "pq_flags". Fix the type of "pq_flags".

[  196.624707] BUG: KASAN: stack-out-of-bounds in qed_init_qm_get_idx_from_flags+0x1a4/0x1b8 [qed]
[  196.624712] Read of size 8 at addr ffff809b00bc7360 by task kworker/0:9/1712
[  196.624714]
[  196.624720] CPU: 0 PID: 1712 Comm: kworker/0:9 Not tainted 4.18.0-60.el8.aarch64+debug #1
[  196.624723] Hardware name: To be filled by O.E.M. Saber/Saber, BIOS 0ACKL024 09/26/2018
[  196.624733] Workqueue: events work_for_cpu_fn
[  196.624738] Call trace:
[  196.624742]  dump_backtrace+0x0/0x2f8
[  196.624745]  show_stack+0x24/0x30
[  196.624749]  dump_stack+0xe0/0x11c
[  196.624755]  print_address_description+0x68/0x260
[  196.624759]  kasan_report+0x178/0x340
[  196.624762]  __asan_report_load_n_noabort+0x38/0x48
[  196.624786]  qed_init_qm_get_idx_from_flags+0x1a4/0x1b8 [qed]
[  196.624808]  qed_init_qm_info+0xec0/0x2200 [qed]
[  196.624830]  qed_resc_alloc+0x284/0x7e8 [qed]
[  196.624853]  qed_slowpath_start+0x6cc/0x1ae8 [qed]
[  196.624864]  __qede_probe.isra.10+0x1cc/0x12c0 [qede]
[  196.624874]  qede_probe+0x78/0xf0 [qede]
[  196.624879]  local_pci_probe+0xc4/0x180
[  196.624882]  work_for_cpu_fn+0x54/0x98
[  196.624885]  process_one_work+0x758/0x1900
[  196.624888]  worker_thread+0x4e0/0xd18
[  196.624892]  kthread+0x2c8/0x350
[  196.624897]  ret_from_fork+0x10/0x18
[  196.624899]
[  196.624902] Allocated by task 2:
[  196.624906]  kasan_kmalloc.part.1+0x40/0x108
[  196.624909]  kasan_kmalloc+0xb4/0xc8
[  196.624913]  kasan_slab_alloc+0x14/0x20
[  196.624916]  kmem_cache_alloc_node+0x1dc/0x480
[  196.624921]  copy_process.isra.1.part.2+0x1d8/0x4a98
[  196.624924]  _do_fork+0x150/0xfa0
[  196.624926]  kernel_thread+0x48/0x58
[  196.624930]  kthreadd+0x3a4/0x5a0
[  196.624932]  ret_from_fork+0x10/0x18
[  196.624934]
[  196.624937] Freed by task 0:
[  196.624938] (stack is not available)
[  196.624940]
[  196.624943] The buggy address belongs to the object at ffff809b00bc0000
[  196.624943]  which belongs to the cache thread_stack of size 32768
[  196.624946] The buggy address is located 29536 bytes inside of
[  196.624946]  32768-byte region [ffff809b00bc0000, ffff809b00bc8000)
[  196.624948] The buggy address belongs to the page:
[  196.624952] page:ffff7fe026c02e00 count:1 mapcount:0 mapping:ffff809b4001c000 index:0x0 compound_mapcount: 0
[  196.624960] flags: 0xfffff8000008100(slab|head)
[  196.624967] raw: 0fffff8000008100 dead000000000100 dead000000000200 ffff809b4001c000
[  196.624970] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
[  196.624973] page dumped because: kasan: bad access detected
[  196.624974]
[  196.624976] Memory state around the buggy address:
[  196.624980]  ffff809b00bc7200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[  196.624983]  ffff809b00bc7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[  196.624985] >ffff809b00bc7300: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 04 f2 f2 f2
[  196.624988]                                                        ^
[  196.624990]  ffff809b00bc7380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[  196.624993]  ffff809b00bc7400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[  196.624995] ==================================================================

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>
2019-01-28 11:13:34 -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
Colin Ian King
d1ecf8a660 qed: fix spelling mistake "Dispalying" -> "Displaying"
There is a spelling mistake in a DP_NOTICE message, fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-04 20:25:59 -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