This patch doesn't change any functionality, but is a pre-step for
adding support for rewriting of bit-sized fields, like DSCP and ECN
in IPv4 header, similar fields in IPv6, etc.
Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Move short Work Queue API getter functions into the WQ
header file.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
During connection tracking offloads with high number of connections,
(40K connections per second), flow table group lock contention is
observed.
To improve the performance by reducing lock contention, lockless
FTE read lookup is performed as described below.
Each flow table entry is refcounted.
Flow table entry is removed when refcount drops to zero.
rhash table allows rcu protected lookup.
Each hash table entry insertion and removal is write lock protected.
Hence, it is possible to perform lockless lookup in rhash table using
following scheme.
(a) Guard FTE entry lookup per group using rcu read lock.
(b) Before freeing the FTE entry, wait for all readers to finish
accessing the FTE.
Below example of one reader and write in parallel racing, shows
protection in effect with rcu lock.
lookup_fte_locked()
rcu_read_lock();
search_hash_table()
existing_flow_group_write_lock();
tree_put_node(fte)
drop_ref_cnt(fte)
del_sw_fte(fte)
del_hash_table_entry();
call_rcu();
existing_flow_group_write_unlock();
get_ref_cnt(fte) fails
rcu_read_unlock();
rcu grace period();
[..]
kmem_cache_free(fte);
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
FTE memory allocation using alloc_fte() doesn't have any dependency
on the flow group.
Hence, do not hold flow group lock while performing alloc_fte().
This helps to reduce contention of flow group lock.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Currently, mlx5 tc layer doesn't verify that rule has at least one forward
or drop action which leads to following firmware syndrome when user tries
to offload such action:
[ 1824.860501] mlx5_core 0000:81:00.0: mlx5_cmd_check:753:(pid 29458): SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x144b7a)
Add check at the end of parse_tc_fdb_actions() that verifies that resulting
attribute has action fwd or drop flag set.
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
When setting number of VFs to 0 (disable SRIOV), clear VF's
configuration.
Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
mlx5_unload_one do not need local variable to store different value,
Hence just remove it.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Not all mlx5 cards with FPGA device use it for network processing.
mlx5_core driver configures network connection to FPGA device
for all mlx5 cards with installed FPGA. If FPGA is not a part of
network path, driver crashes in this case
Check FPGA name in function mlx5_fpga_device_start() and continue
integrate FPGA into packets flow only for dedicated cards.
Currently there are Newton and Edison cards.
Signed-off-by: Igor Leshenko <igorle@mellanox.com>
Reviewed-by: Meir Lichtinger <meirl@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Use kernel function to calculate crc32 Instead of dr implementation
since it has the same algorithm "slice by 8".
Fixes: 26d688e33f ("net/mlx5: DR, Add Steering entry (STE) utilities")
Signed-off-by: Hamdan Igbaria <hamdani@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2019-11-01
This series contains updates to e1000, igb, igc, ixgbe, i40e and driver
documentation.
Lyude Paul fixes an issue where a fatal read error occurs when the
device is unplugged from the machine. So change the read error into a
warn while the device is still present.
Manfred Rudigier found that the i350 device was not apart of the "Media
Auto Sense" feature, yet the device supports it. So add the missing
i350 device to the check and fix an issue where the media auto sense
would flip/flop when no cable was connected to the port causing spurious
kernel log messages.
I fixed an issue where the fix to resolve receive buffer starvation was
applied in more than one place in the driver, one being the incorrect
location in the i40e driver.
Wenwen Wang fixes a potential memory leak in e1000 where allocated
memory is not properly cleaned up in one of the error paths.
Jonathan Neuschäfer cleans up the driver documentation to be consistent
and remove the footnote reference, since the footnote no longer exists in
the documentation.
Igor Pylypiv cleans up a duplicate clearing of a bit, no need to clear
it twice.
v2: Fixed alignment issue in patch 3 of the series based on community
feedback.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of deciding a given device is virtual function or
not based on a device is PF or not, use already defined
MLX5_COREDEV_VF by introducing an helper API mlx5_core_is_vf().
This enables to clearly identify PF, VF and non virtual functions.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Currently on ECPF, metadata is enabled on the ECPF vport = 0xfffe
(manager vport).
Metadata when supported, must be enabled on own vport which is
used to pass metadata to vport of NIC Rx Flow Table.
Due to this error, traffic tagged by ingress ACL is not processed
correctly at NIC rx flow table level which is supposed to work
on metadata tag.
Hence, instead of working on eswitch manager vport, always working on
eswitch own vport regardless of PF or ECPF.
Given that mlx5_eswitch_query/modify_esw_vport_context() is used to
access other vport in legacy mode and own vport settings in switchdev mode,
extend low level API to explicitly specify other_vport.
Fixes: c1286050cf ("net/mlx5: E-Switch, Pass metadata from FDB to eswitch manager")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Drop, untagged, spoof check and untagged spoof check flow groups are
limited to legacy mode only.
Therefore, following refactoring is done to
(a) improve code readability
(b) have better code split between legacy and offloads mode
1. Move legacy flow groups under legacy structure
2. Add validity check for group deletion
3. Restrict scope of esw_vport_disable_ingress_acl to legacy mode
4. Rename esw_vport_enable_ingress_acl() to
esw_vport_create_ingress_acl_table() and limit its scope to
table creation
5. Introduce legacy flow groups creation helper
esw_legacy_create_ingress_acl_groups() and keep its scope to legacy mode
6. Reduce offloads ingress groups from 4 to just 1 metadata group
per vport
7. Removed redundant IS_ERR_OR_NULL as entries are marked NULL on free.
8. Shortern error message to remove redundant 'E-switch'
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Now that there is clear separation for acl setup/cleanup between legacy
and offloads mode, limit metdata disablement to offloads mode.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Currently legacy mode enables ACL while enabling vport, while offloads
mode enable ACL when moving to offloads mode.
Bring consistency to both modes by enabling/disabling ACL when
enabling/disabling a vport.
It also eliminates creating ingress ACL table on unused ECPF vport in
offloads mode.
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Introduce and use per vport ACL tables creation and destroy APIs, so that
subsequently patch can use them during enabling/disabling a vport.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
It is better to create/destroy ACL related drop counters where the actual
drop rule ACLs are created/destroyed, so that ACL configuration is self
contained for ingress and egress.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Introduce and use per vport ACL tables creation and destroy APIs, so that
subsequently patch can use them during enabling/disabling a vport in
unified way for legacy vs offloads mode.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
In subsequent patch, esw_enable_vport() could fail and return error.
Prepare code to handle such error.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
When eswitch is disabled, vport event handler is unregistered.
This unregistration already synchronizes with running EQ event handler
in below code flow.
mlx5_eswitch_disable()
mlx5_eswitch_event_handlers_unregister()
mlx5_eq_notifier_unregister()
atomic_notifier_chain_unregister()
synchronize_rcu()
notifier_callchain
eswitch_vport_event()
queue_work()
Additionally vport->enabled flag is set under state_lock during
esw_enable_vport() but is not read under state_lock in
(a) esw_disable_vport() and (b) under atomic context
eswitch_vport_event().
It is also necessary to synchronize with already scheduled vport event.
This is already achieved using below sequence.
mlx5_eswitch_event_handlers_unregister()
[..]
flush_workqueue()
Hence,
(a) Remove vport->enabled check in eswitch_vport_event() which
doesn't make any sense.
(b) Remove redundant flush_workqueue() on every vport disable.
(c) Keep esw_disable_vport() symmetric with esw_enable_vport() for
state_lock.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
To improve code readability, move legacy drop counters and droup rule
under legacy structure.
While at it,
(a) prefix drop flow counters helper with legacy_.
(b) nullify the rule pointers only if they were valid.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
fdb_table is used for both legacy and offloads mode.
It was incorrect to comment that fdb_table is legacy specific.
Hence, fix the comment to reflect that fdb_table is used in legacy and
offloads mode.
Fixes: 131ce70140 ("net/mlx5: E-Switch, Remove redundant mc_promisc NULL check")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Currently esw_enable_vport() does vport check for zero to enable drop
counters regardless of execution on ECPF/PF.
While esw_disable_vport() considers such scenario.
To keep consistency across code for checking for manager_vport,
introduce and use mlx5_esw_is_manager_vport() to check if a specified
vport is eswitch manager vport or not.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Between legacy mode and switchdev mode, only two fields are changed,
vlan_tag and flow action.
Hence to avoid duplicte code between two modes, introduce and and use
helper function to configure allowed VLAN rule.
While at it, get rid of duplicate debug message.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Changing the function name esw_ingress_acl_common_config() to
esw_ingress_acl_config() to be consistent with egress config
function naming in offloads mode.
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Refactor vport egress config in offloads mode
Refactoring vport egress configuration in offloads mode that
includes egress prio tag configuration.
This makes code symmetric to ingress configuration.
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
- Fix VDSO time-related function behavior for systems where we need to
fall back to syscalls, but were instead returning bogus results.
- A fix to TLB exception handlers for Cavium Octeon systems where they
would inadvertently clobber the $1/$at register.
- A build fix for bcm63xx configurations.
- Switch to using my @kernel.org email address.
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Merge tag 'mips_fixes_5.4_3' into mips-next
Pull in mips-fixes primarily to gain build fixes in order to allow
better testing of mips-next.
A few MIPS fixes:
- Fix VDSO time-related function behavior for systems where we need to
fall back to syscalls, but were instead returning bogus results.
- A fix to TLB exception handlers for Cavium Octeon systems where they
would inadvertently clobber the $1/$at register.
- A build fix for bcm63xx configurations.
- Switch to using my @kernel.org email address.
Signed-off-by: Paul Burton <paulburton@kernel.org>
When I update kernel with loongson3_defconfig based on the Loongson 3A3000
platform, then using dmesg command to show kernel ring buffer, the initial
kernel messages have disappeared due to the log buffer is too small, it is
better to change the kernel log buffer size from 16KB to 128KB which is
enough to save the boot messages.
Since the default LOG_BUF_SHIFT value is 17, the default kernel log buffer
size is 128KB, just delete the CONFIG_LOG_BUF_SHIFT line.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: paul.burton@mips.com
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: chenhc@lemote.com
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
MAX_COMPACT_NODE is a leftover from the compact node implementation,
which is removed now. Use MAX_NUMNODES instead.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Clean up legacy code after stripping out Loongson2ef code.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: paul.burton@mips.com
Remove unrelevent macros, defines and codes from loongson2ef mach.
Also rename some defines to match new naming.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: paul.burton@mips.com
As later model of GSx64 family processors including 2-series-soc have
similar design with initial loongson3a while loongson2e/f seems less
identical, we separate loongson2e/f support code out of mach-loongson64
to make our life easier.
This patch contains mostly file moving works.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
[paulburton@kernel.org: Squash in the MAINTAINERS updates]
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: paul.burton@mips.com
Fix two pointer-to-int-cast warnings when compiling for the 32-bit parisc
platform:
kernel/kexec_file.c: In function ‘crash_prepare_elf64_headers’:
kernel/kexec_file.c:1307:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
phdr->p_vaddr = (Elf64_Addr)_text;
^
kernel/kexec_file.c:1324:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
phdr->p_vaddr = (unsigned long long) __va(mstart);
^
Signed-off-by: Helge Deller <deller@gmx.de>
__IXGBE_RX_BUILD_SKB_ENABLED bit is already cleared.
Signed-off-by: Igor Pylypiv <igor.pylypiv@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
These asterisks were once references to a line that said:
"* Other names and brands may be claimed as the property of others."
But now, they serve no purpose; they can only irritate the reader.
Fixes: de3edab427 ("e1000: update README for e1000")
Fixes: a3fb65680f ("e100.txt: Cleanup license info in kernel doc")
Fixes: da8c01c450 ("e1000e.txt: Add e1000e documentation")
Fixes: f12a84a9f6 ("Documentation: fm10k: Add kernel documentation")
Fixes: b55c52b193 ("igb.txt: Add igb documentation")
Fixes: c4e9b56e24 ("igbvf.txt: Add igbvf Documentation")
Fixes: d7064f4c19 ("Documentation/networking/: Update Intel wired LAN driver documentation")
Fixes: c4b8c01112 ("ixgbevf.txt: Update ixgbevf documentation")
Fixes: 1e06edcc2f ("Documentation: i40e: Prepare documentation for RST conversion")
Fixes: 105bf2fe6b ("i40evf: add driver to kernel build system")
Fixes: 1fae869bcf ("Documentation: ice: Prepare documentation for RST conversion")
Fixes: df69ba4321 ("ionic: Add basic framework for IONIC Network device driver")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In e1000_set_ringparam(), 'tx_old' and 'rx_old' are not deallocated if
e1000_up() fails, leading to memory leaks. Refactor the code to fix this
issue.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Magnus's fix to resolve a potential receive buffer starvation for AF_XDP
got applied to both the i40e_xsk_umem_enable/disable() functions, when it
should have only been applied to the "enable". So clean up the undesired
code in the disable function.
CC: Magnus Karlsson <magnus.karlsson@intel.com>
Fixes: 1f459bdc20 ("i40e: fix potential RX buffer starvation for AF_XDP")
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
At least on the i350 there is an annoying behavior that is maybe also
present on 82580 devices, but was probably not noticed yet as MAS is not
widely used.
If no cable is connected on both fiber/copper ports the media auto sense
code will constantly swap between them as part of the watchdog task and
produce many unnecessary kernel log messages.
The swap code responsible for this behavior (switching to fiber) should
not be executed if the current media type is copper and there is no signal
detected on the fiber port. In this case we can safely wait until the
AUTOSENSE_EN bit is cleared.
Signed-off-by: Manfred Rudigier <manfred.rudigier@omicronenergy.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Avoid
drivers/gpu/drm/i915/i915_perf.c:2442:85: warning: dubious: x | !y
simply by inverting the predicate and reversing the ternary.
v2: Move the long lines into their own function so there is no confusion
on operator precedence.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191101192116.12647-1-chris@chris-wilson.co.uk
Pull scheduler fixes from Ingo Molnar:
"Fix two scheduler topology bugs/oversights on Juno r0 2+4 big.LITTLE
systems"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/topology: Allow sched_asym_cpucapacity to be disabled
sched/topology: Don't try to build empty sched domains
This internal logic was killed with the conversion to io-wq, so we no
longer have a need for this particular trace. Kill it.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This branch is shared with the rdma.git for dependencies in following
patches:
====================
In order to hoist the interval tree code out of the drivers and into the
mmu_notifiers it is necessary for the drivers to not use the interval tree
for other things.
This series replaces the interval tree with an xarray and along the way
re-aligns all the locking to use a sensible SRCU model where the 'update'
step is done by modifying an xarray.
The result is overall much simpler and with less locking in the critical
path. Many functions were reworked for clarity and small details like
using 'imr' to refer to the implicit MR make the entire code flow here
more readable.
This also squashes at least two race bugs on its own, and quite possibily
more that haven't been identified.
====================
* branch 'odp_rework':
RDMA/odp: Remove broken debugging call to invalidate_range
RDMA/mlx5: Do not race with mlx5_ib_invalidate_range during create and destroy
RDMA/mlx5: Do not store implicit children in the odp_mkeys xarray
RDMA/mlx5: Rework implicit ODP destroy
RDMA/mlx5: Avoid double lookups on the pagefault path
RDMA/mlx5: Reduce locking in implicit_mr_get_data()
RDMA/mlx5: Use an xarray for the children of an implicit ODP
RDMA/mlx5: Split implicit handling from pagefault_mr
RDMA/mlx5: Set the HW IOVA of the child MRs to their place in the tree
RDMA/mlx5: Lift implicit_mr_alloc() into the two routines that call it
RDMA/mlx5: Rework implicit_mr_get_data
RDMA/mlx5: Delete struct mlx5_priv->mkey_table
RDMA/mlx5: Use a dedicated mkey xarray for ODP
RDMA/mlx5: Split sig_err MR data into its own xarray
RDMA/mlx5: Use SRCU properly in ODP prefetch
