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The last return statement is unreachable code. I'm not sure if it will
provoke any warnings, but it looks ugly.
Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Memory ft->g in accel_fs_tcp_create_groups() is allocaed with kcalloc().
It's excessive to free ft->g with kvfree(). Use kfree() instead.
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Variables flow_group_in, spec in rx_fs_create() are allocated with
kvzalloc(). It's incorrect to free them with kfree(). Use kvfree()
instead.
Fixes: 5e466345291a ("net/mlx5e: IPsec: Add IPsec steering in local NIC RX")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Keep and use a direct reference to the mlx5 core device in all of
tc_ct code instead of accessing it via a pointer to mlx5 eswitch
in order to support nic mode ct offload for VF devices that don't
have a valid eswitch pointer set.
Signed-off-by: Ariel Levkovich <lariel@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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priv is never used in this function
Fixes: 7e36feeb0467 ("net/mlx5e: CT: Don't offload tuple rewrites for established tuples")
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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A connection is represented by two 5-tuple entries, one for each direction.
Currently, each direction allocates its own hw counter, which is
inefficient as ct aging is managed per connection.
Share the counter that was allocated for the original direction with the
reverse direction.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Adding support to perform CT related tc actions and
matching on CT states for nic flows.
The ct flows management and handling will be done using a new
instance of the ct database that is declared in this patch to
keep it separate from the eswitch ct flows database.
Offloading and unoffloading ct flows will be done using the
existing ct offload api by providing it the relevant ct
database reference in each mode.
In addition, refactoring the tc ct api is introduced to make it
agnostic to the flow type and perform the resource allocations
and rule insertion to the proper steering domain in the device.
In the initialization call, the api requests and stores in the ct
database instance all the relevant information that distinguishes
between nic flows and esw flows, such as chains database, steering
namespace and mod hdr table.
This way the operations of adding and removing ct flows to the device
can later performed agnostically to the flow type.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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The changes are:
- Use mlx5_core print macros instead of netdev_warn since
netdev is not always initialized at that stage.
- Print a warning message in case the issue is with lack of
support for CT offload without indicating an error.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Allow adding nic tc flow rules with goto chain action.
Connecting the nic flows to the mlx5 chains infrastructure in previous
patches allows us to support the creation of chained flow tables and
rules that direct to another chain for further packet processing.
This is a required preparation to support CT offloads for nic tc flows.
We allow the creation of 256 different chains for nic flows since we
have 8 bits available for the chain restore tag in case of a miss.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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In order to support chains and connection tracking offload for
nic flows, there's a need to introduce a common flow attributes
struct so that these features can be agnostic and have access to
a single attributes struct, regardless of the flow type.
Therefore, a new tc flow attributes format is introduced to allow
access to attributes that are common to eswitch and nic flows.
The common attributes will always get allocated for the new flows,
regardless of their type, while the type specific attributes are
separated into different structs and will be allocated based on the
flow type to avoid memory waste.
When allocating the flow attributes the caller provides the flow
steering namespace and according the namespace type the additional
space for the extra, type specific, attributes is determined and
added to the total attribute allocation size.
In addition, the attributes that are going to be common to both
flow types are moved to the common attributes struct.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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For future support of CT offload with nic tc flows, where
the flow rule is not created immediately but rather following
a future event, the patch is splitting the nic rule creation
and deletion into 2 parts:
1. Creating/Deleting and setting the rule attributes.
2. Creating/Deleting the flow table and flow rule itself.
This way the attributes can be prepared and stored in the
flow handle when the tc flow is created but the rule can
actually be created at any point in the future, using these
pre allocated attributes.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Change nic tc flows offload path to use the chains and prios
infrastructure for the flow table creation as a preparation to
support tc multi chains and priorities for nic flows.
Adding an instance of the table chaining database to the nic tc struct
and perform the root table creation and desctuction via the chains api
while keeping the limit of a single chain (0) in nic tc mode.
This will be extendable to supporting multiple chains in the following
patches.
The flow table sizes and default miss table parameters that are provided
to the chains creation api are kept the same.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Allow setting a flow table with a lower level
as a rule destination in nic rx tables.
This is required in order to support table chaining
of tc nic flows.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Decouple the chains infrastructure from eswitch and make
it generic to support other steering namespaces.
The change defines an agnostic data structure to keep
all the relevant information for maintaining flow table
chaining in any steering namespace. Each namespace that
requires table chaining will be required to allocate
such data structure.
The chains creation code will receive the steering namespace
and flow table parameters from the caller so it will operate
agnosticly when creating the required resources to
maintain the table chaining function while Parts of the code
that are relevant to eswitch specific functionality are moved
to eswitch files.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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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>
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The IS2 IP4_TCP_UDP key offsets do not correspond to the VSC7514
datasheet. Whether they work or not is unknown to me. On VSC9959 and
VSC9953, with the same mistake and same discrepancy from the
documentation, tc-flower src_port and dst_port rules did not work, so I
am assuming the same is true here.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes-2020-09-18
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
v1->v2:
Remove missing patch from -stable list.
For -stable v5.1
('net/mlx5: Fix FTE cleanup')
For -stable v5.3
('net/mlx5e: TLS, Do not expose FPGA TLS counter if not supported')
('net/mlx5e: Enable adding peer miss rules only if merged eswitch is supported')
For -stable v5.7
('net/mlx5e: Fix memory leak of tunnel info when rule under multipath not ready')
For -stable v5.8
('net/mlx5e: Use RCU to protect rq->xdp_prog')
('net/mlx5e: Fix endianness when calculating pedit mask first bit')
('net/mlx5e: Use synchronize_rcu to sync with NAPI')
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Returning errno is a bug, fix that.
Also fixes smatch warnings:
drivers/net/ethernet/mellanox/mlx5/core/en/port.c:453
mlx5e_fec_in_caps() warn: signedness bug returning '(-95)'
Fixes: 2132b71f78d2 ("net/mlx5e: Advertise globaly supported FEC modes")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
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The spinlock only needed when accessing the channel's icosq, grab the lock
after the buf allocation in resync_post_get_progress_params() to avoid
kzalloc(GFP_KERNEL) in atomic context.
Fixes: 0419d8c9d8f8 ("net/mlx5e: kTLS, Add kTLS RX resync support")
Reported-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
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Resync progress params buffer and dma weren't released on error,
Add missing error unwinding for resync_post_get_progress_params().
Fixes: 0419d8c9d8f8 ("net/mlx5e: kTLS, Add kTLS RX resync support")
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
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Progress params dma address is never unmapped, unmap it when completion
handling is over.
Fixes: 0419d8c9d8f8 ("net/mlx5e: kTLS, Add kTLS RX resync support")
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
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Using synchronize_rcu() is sufficient to wait until running NAPI quits.
See similar upstream fix with detailed explanation:
("net/mlx5e: Use synchronize_rcu to sync with NAPI")
This change also fixes a possible use-after-free as the NAPI
might be already released at this stage.
Fixes: 0419d8c9d8f8 ("net/mlx5e: kTLS, Add kTLS RX resync support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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The set of TLS TX global SW counters in mlx5e_tls_sw_stats_desc
is updated from all rings by using atomic ops.
This set of stats is used only in the FPGA TLS use case, not in
the Connect-X TLS one, where regular per-ring counters are used.
Do not expose them in the Connect-X use case, as this would cause
counter duplication. For example, tx_tls_drop_no_sync_data would
appear twice in the ethtool stats.
Fixes: d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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The cited commit started to reuse function mlx5e_update_ndo_stats() for
the representors as well.
However, the function is hard-coded to work on mlx5e_nic_stats_grps only.
Due to this issue, the representors statistics were not updated in the
output of "ip -s".
Fix it to work with the correct group by extracting it from the caller's
profile.
Also, while at it and since this function became generic, move it to
en_stats.c and rename it accordingly.
Fixes: 8a236b15144b ("net/mlx5e: Convert rep stats to mlx5e_stats_grp-based infra")
Signed-off-by: Alaa Hleihel <alaa@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Currently the FW does not generate events for counters other than error
counters. Unlike ".get_ethtool_stats", ".ndo_get_stats64" (which ip -s
uses) might run in atomic context, while the FW interface is non atomic.
Thus, 'ip' is not allowed to issue FW commands, so it will only display
cached counters in the driver.
Add a SW counter (mcast_packets) in the driver to count rx multicast
packets. The counter also counts broadcast packets, as we consider it a
special case of multicast.
Use the counter value when calling "ip -s"/"ifconfig".
Fixes: f62b8bb8f2d3 ("net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality")
Signed-off-by: Ron Diskin <rondi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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The field mask value is provided in network byte order and has to
be converted to host byte order before calculating pedit mask
first bit.
Fixes: 88f30bbcbaaa ("net/mlx5e: Bit sized fields rewrite support")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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The cited commit creates peer miss group during switchdev mode
initialization in order to handle miss packets correctly while in VF
LAG mode. This is done regardless of FW support of such groups which
could cause rules setups failure later on.
Fix by adding FW capability check before creating peer groups/rule.
Fixes: ac004b832128 ("net/mlx5e: E-Switch, Add peer miss rules")
Signed-off-by: Maor Dickman <maord@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Add missing mapping remove call when removing ct rule,
as the mapping was allocated when ct rule was adding with ct_label.
Also there is a missing mapping remove call in error flow.
Fixes: 54b154ecfb8c ("net/mlx5e: CT: Map 128 bits labels to 32 bit map ID")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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When deleting vxlan flow rule under multipath, tun_info in parse_attr is
not freed when the rule is not ready.
Fixes: ef06c9ee8933 ("net/mlx5e: Allow one failure when offloading tc encap rules under multipath")
Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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As described in the previous commit, napi_synchronize doesn't quite fit
the purpose when we just need to wait until the currently running NAPI
quits. Its implementation waits until NAPI is not running by polling and
waiting for 1ms in between. In cases where we need to deactivate one
queue (e.g., recovery flows) or where we deactivate them one-by-one
(deactivate channel flow), we may get stuck in napi_synchronize forever
if other queues keep NAPI active, causing a soft lockup. Depending on
kernel configuration (CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC), it may result
in a kernel panic.
To fix the issue, use synchronize_rcu to wait for NAPI to quit, and wrap
the whole NAPI in rcu_read_lock.
Fixes: acc6c5953af1 ("net/mlx5e: Split open/close channels to stages")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Currently, the RQs are temporarily deactivated while hot-replacing the
XDP program, and napi_synchronize is used to make sure rq->xdp_prog is
not in use. However, napi_synchronize is not ideal: instead of waiting
till the end of a NAPI cycle, it polls and waits until NAPI is not
running, sleeping for 1ms between the periodic checks. Under heavy
workloads, this loop will never end, which may even lead to a kernel
panic if the kernel detects the hangup. Such workloads include XSK TX
and possibly also heavy RX (XSK or normal).
The fix is inspired by commit 326fe02d1ed6 ("net/mlx4_en: protect
ring->xdp_prog with rcu_read_lock"). As mlx5e_xdp_handle is already
protected by rcu_read_lock, and bpf_prog_put uses call_rcu to free the
program, there is no need for additional synchronization if proper RCU
functions are used to access the pointer. This patch converts all
accesses to rq->xdp_prog to use RCU functions.
Fixes: 86994156c736 ("net/mlx5e: XDP fast RX drop bpf programs support")
Fixes: db05815b36cb ("net/mlx5e: Add XSK zero-copy support")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Currently, when an FTE is allocated, its refcount is decreased to 0
with the purpose it will not be a stand alone steering object and every
rule (destination) of the FTE would increase the refcount.
When mlx5_cleanup_fs is called while not all rules were deleted by the
steering users, it hit refcount underflow on the FTE once clean_tree
calls to tree_remove_node after the deleted rules already decreased
the refcount to 0.
FTE is no longer destroyed implicitly when the last rule (destination)
is deleted. mlx5_del_flow_rules avoids it by increasing the refcount on
the FTE and destroy it explicitly after all rules were deleted. So we
can avoid the refcount underflow by making FTE as stand alone object.
In addition need to set del_hw_func to FTE so the HW object will be
destroyed when the FTE is deleted from the cleanup_tree flow.
refcount_t: underflow; use-after-free.
WARNING: CPU: 2 PID: 15715 at lib/refcount.c:28 refcount_warn_saturate+0xd9/0xe0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
Call Trace:
tree_put_node+0xf2/0x140 [mlx5_core]
clean_tree+0x4e/0xf0 [mlx5_core]
clean_tree+0x4e/0xf0 [mlx5_core]
clean_tree+0x4e/0xf0 [mlx5_core]
clean_tree+0x5f/0xf0 [mlx5_core]
clean_tree+0x4e/0xf0 [mlx5_core]
clean_tree+0x5f/0xf0 [mlx5_core]
mlx5_cleanup_fs+0x26/0x270 [mlx5_core]
mlx5_unload+0x2e/0xa0 [mlx5_core]
mlx5_unload_one+0x51/0x120 [mlx5_core]
mlx5_devlink_reload_down+0x51/0x90 [mlx5_core]
devlink_reload+0x39/0x120
? devlink_nl_cmd_reload+0x43/0x220
genl_rcv_msg+0x1e4/0x420
? genl_family_rcv_msg_attrs_parse+0x100/0x100
netlink_rcv_skb+0x47/0x110
genl_rcv+0x24/0x40
netlink_unicast+0x217/0x2f0
netlink_sendmsg+0x30f/0x430
sock_sendmsg+0x30/0x40
__sys_sendto+0x10e/0x140
? handle_mm_fault+0xc4/0x1f0
? do_page_fault+0x33f/0x630
__x64_sys_sendto+0x24/0x30
do_syscall_64+0x48/0x130
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: 718ce4d601db ("net/mlx5: Consolidate update FTE for all removal changes")
Fixes: bd71b08ec2ee ("net/mlx5: Support multiple updates of steering rules in parallel")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/natsemi/ns83820.c: In function ns83820_get_link_ksettings:
drivers/net/ethernet/natsemi/ns83820.c:1210:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable]
`tanar` is never used, so remove it.
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This failure path should return a negative error code but it currently
returns success.
Fixes: 51b35a454efd ("sfc: skeleton EF100 PF driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After running Sparse checker on the driver using
make C=1 M=drivers/net/ethernet/amazon/ena
the only error that is thrown is:
sparse: sparse: Using plain integer as NULL pointer
about the line
struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
This patch fixes this warning, thus making our driver free (for now) of
Sparse errors/warnings.
To make a more complete work, this patch also fixes all static warnings
that were found using an internal static checker.
Signed-off-by: Ido Segev <idose@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The formal name changes to "ENA_ADMIN_RSS_INDIRECTION_TABLE_CONFIG".
Indirection is the ability to reference "something" using "something else"
instead of the value itself.
Indirection table, as the name implies, is the ability to reference
CPU/Queue value using hash-to-CPU table instead of CPU/Queue itself.
This patch renames the variable keys_num, which describes the number of
words in the RSS hash key, to key_parts which makes its purpose clearer
in RSS context.
Signed-off-by: Amit Bernstein <amitbern@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The placement policy is printed in the process of queue creation in
ena_up(). No need to print it in ena_probe().
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Capitalize all log strings printed by the ena driver to make their
format uniform across it.
Also fix indentation, spelling mistakes and comments to improve code
readability. This also includes adding comments to macros/enums whose
purpose might be difficult to understand.
Separate some code into functions to make it easier to understand the
purpose of these lines.
Signed-off-by: Amit Bernstein <amitbern@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make log prints in ena_netdev use the same log functions as the rest of
the driver.
For the sake of consistency, all prints in ena_netdev file were
converted into netif_* format except where netdev struct isn't yet
defined. For these places, dev_* log functions are used (similar to
the patch for ena_com files).
This commit leaves some corner cases which would be changed in a
future patch.
Signed-off-by: Amit Bernstein <amitbern@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All ena files should now use SPDX format in their license string. This
doesn't change the license of the files, but rather states the same
license in fewer words.
Also update the license years in some of the files.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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__mlxsw_sp_router_init()
Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sg_init_table zeroes its first argument, so the allocation of that argument
doesn't have to.
the semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression x,n,flags;
@@
x =
- kcalloc
+ kmalloc_array
(n,sizeof(struct scatterlist),flags)
...
sg_init_table(x,n)
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The wrong flag value caused the firmware call to return actual port
counters instead of the counter masks. This messed up the counter
overflow logic and caused erratic extended port counters to be
displayed under ethtool -S.
Fixes: 531d1d269c1d ("bnxt_en: Retrieve hardware masks for port counters.")
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix it to set the required fid input parameter. The firmware call
fails without this patch.
Fixes: d752d0536c97 ("bnxt_en: Retrieve hardware counter masks from firmware if available.")
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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