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Add support for offloading dscp app entries. Dscp values are global for
all ports on the sparx5 switch. Therefore, we replicate each dscp app
entry per-port.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Make use of set/getapptrust() to implement per-selector trust and trust
order.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add new registers and functions to support offload of pcp app entries.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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When lan966x was receiving a frame, then it was building the skb and
after that it was calling dma_unmap_single with frame size as the
length. This actually has 2 issues:
1. It is using a length to map and a different length to unmap.
2. When the unmap was happening, the data was sync for cpu but it could
be that this will overwrite what build_skb was initializing.
The fix for these two problems is to change the order of operations.
First to sync the frame for cpu, then to build the skb and in the end to
unmap using the correct size but without sync the frame again for cpu.
Fixes: c8349639324a ("net: lan966x: Add FDMA functionality")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20221031133421.1283196-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When MTU is changed, FDMA is required to calculate what is the maximum
size of the frame that it can received. So it can calculate what is the
page order needed to allocate for the received frames.
The first problem was that, when the max MTU was calculated it was
reading the value from dev and not from HW, so in this way it was
missing L2 header + the FCS.
The other problem was that once the skb is created using
__build_skb_around, it would reserve some space for skb_shared_info.
So if we received a frame which size is at the limit of the page order
then the creating will failed because it would not have space to put all
the data.
Fixes: 2ea1cbac267e ("net: lan966x: Update FDMA to change MTU.")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When vlan filtering is enabled/disabled, it is required to adjust the
maximum received frame size that it can received. When vlan filtering is
enabled, it would all to receive extra 4 bytes, that are the vlan tag.
So the maximum frame size would be 1522 with a vlan tag. If vlan
filtering is disabled then the maximum frame size would be 1518
regardless if there is or not a vlan tag.
Fixes: 6d2c186afa5d ("net: lan966x: Add vlan support.")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When the MTU was changed, the lan966x didn't take in consideration
the L2 header and the FCS. So the HW was configured with a smaller
value than what was desired. Therefore the correct value to configure
the HW would be new_mtu + ETH_HLEN + ETH_FCS_LEN.
The vlan tag is not considered here, because at the time when the
blamed commit was added, there was no vlan filtering support. The
vlan fix will be part of the next patch.
Fixes: d28d6d2e37d1 ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Update the lan743x driver to use the recently added diff_by_scaled_ppm
helper function. This reduces the amount of code required in lan743x_ptp.c
driver file.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Cc: Bryan Whitehead <bryan.whitehead@microchip.com>
Cc: UNGLinuxDriver@microchip.com
Signed-off-by: David S. Miller <davem@davemloft.net>
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The lan743x driver implements both .adjfreq and .adjfine, but the core PTP
subsystem prefers .adjfine if implemented. There is no reason to carry a
.adjfreq implementation, so we can remove it.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Cc: Bryan Whitehead <bryan.whitehead@microchip.com>
Cc: UNGLinuxDriver@microchip.com
Signed-off-by: David S. Miller <davem@davemloft.net>
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static
test_callbacks and test_vctrl are only used in vcap_api_kunit.c now,
change them to static.
Fixes: 67d637516fa9 ("net: microchip: sparx5: Adding KUNIT test for the VCAP API")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
2871edb32f46 ("can: kvaser_usb: Fix possible completions during init_completion")
abb8670938b2 ("can: kvaser_usb_leaf: Ignore stale bus-off after start")
8d21f5927ae6 ("can: kvaser_usb_leaf: Fix improved state not being reported")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add pause get and set functions
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When a frame is sent using FDMA, the skb is mapped and then the mapped
address is given to an tx dcb that is different than the last used tx
dcb. Once the HW finish with this frame, it would generate an interrupt
and then the dcb can be reused and memory can be freed. For each dcb
there is an dcb buf that contains some meta-data(is used by PTP, is
it free). There is 1 to 1 relationship between dcb and dcb_buf.
The following issue was observed. That sometimes after changing the MTU
to allocate new tx dcbs and dcbs_buf, two frames were not
transmitted. The frames were not transmitted because when reloading the
tx dcbs, it was always presuming to use the first dcb but that was not
always happening. Because it could be that the last tx dcb used before
changing MTU was first dcb and then when it tried to get the next dcb it
would take dcb 1 instead of 0. Because it is supposed to take a
different dcb than the last used one. This can be fixed simply by
changing tx->last_in_use to -1 when the fdma is disabled to reload the
new dcb and dcbs_buff.
But there could be a different issue. For example, right after the frame
is sent, the MTU is changed. Now all the dcbs and dcbs_buf will be
cleared. And now get the interrupt from HW that it finished with the
frame. So when we try to clear the skb, it is not possible because we
lost all the dcbs_buf.
The solution here is to stop replacing the tx dcbs and dcbs_buf when
changing MTU because the TX doesn't care what is the MTU size, it is
only the RX that needs this information.
Fixes: 2ea1cbac267e ("net: lan966x: Update FDMA to change MTU.")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20221021090711.3749009-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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include/linux/net.h
a5ef058dc4d9 ("net: introduce and use custom sockopt socket flag")
e993ffe3da4b ("net: flag sockets supporting msghdr originated zerocopy")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This provides a KUNIT test suite for the VCAP APIs encoding functionality.
The test can be run by adding these settings in a .kunitconfig file
CONFIG_KUNIT=y
CONFIG_NET=y
CONFIG_VCAP_KUNIT_TEST=y
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This provides a test VCAP model for use in a KUNIT test. The model
provides 3 different VCAP types for better test coverage.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds rule encoding functionality to the VCAP API.
A rule consists of keys and actions in separate cache sections.
The maximum size of the keyset or actionset determines the size of the
rule.
The VCAP hardware need to be able to distinguish different rule sizes from
each other, and for that purpose some extra typegroup bits are added to the
rule when it is encoded.
The API provides a bit stream iterator that allows highlevel encoding
functionality to add key and action value bits independent of typegroup
bits.
This is handled by letting the concrete VCAP model provide the typegroup
table for the different rule sizes.
After the key and action values have been added to the encoding bit streams
the typegroup bits are set to their correct values just before the rule is
written to the VCAP hardware.
The key and action offsets provided in the VCAP model are the offset before
adding the typegroup bits.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Tested-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Casper Andersson <casper.casan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This provides most of the rule handling needed to add a new rule to a VCAP.
To add a rule a client must follow these steps:
1) Allocate a new rule (provide an id or get one automatically assigned)
2) Add keys to the rule
3) Add actions to the rule
4) Optionally set a keyset on the rule
5) Optionally set an actionset on the rule
6) Validate the rule (this will add keyset and actionset if not specified
in the previous steps)
7) Add the rule (if the validation was successful)
8) Free the rule instance (a copy has been added to the VCAP)
The validation step will fail if there are no keysets with the requested
keys, or there are no actionsets with the requested actions.
The validation will also fail if the keyset is not configured for the port
for the requested protocol).
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Tested-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Casper Andersson <casper.casan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This provides a default port keyset configuration for the Sparx5 IS2 VCAP
where all ports and all lookups in IS2 use the same keyset (MAC_ETYPE) for
all types of traffic.
This means that no matter what frame type is received on any front port it
will generate the MAC_ETYPE keyset in the IS VCAP and any rule in the IS2
VCAP that uses this keyset will be matched against the keys in the
MAC_ETYPE keyset.
The callback interface used by the VCAP API is populated with Sparx5
specific handler functions that takes care of the actual reading and
writing to data to the Sparx5 IS2 VCAP instance.
A few functions are also added to the VCAP API to support addition of rule
fields such as the ingress port mask and the lookup bit.
The IS2 VCAP in Sparx5 is really divided in two instances with lookup 0
and 1 in the first instance and lookup 2 and 3 in the second instance.
The lookup bit selects lookup 0 or 3 in the respective instance when it is
set.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Tested-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Casper Andersson <casper.casan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds initial TC flower filter support to Sparx5 for the IS2 VCAP.
The support consists of the source and destination MAC addresses,
and the trap and pass actions.
This is how you can create a rule that test the functionality:
tc qdisc add dev eth0 clsact
tc filter add dev eth0 ingress chain 8000000 prio 10 handle 10 \
protocol all flower skip_sw \
dst_mac 0a:0b:0c:0d:0e:0f \
src_mac 2:0:0:0:0:1 \
action trap
The IS2 chains in Sparx5 are assigned like this:
- chain 8000000: IS2 Lookup 0
- chain 8100000: IS2 Lookup 1
- chain 8200000: IS2 Lookup 2
- chain 8300000: IS2 Lookup 3
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Tested-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Casper Andersson <casper.casan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds the register interface needed to access the Sparx5 Ingress Stage
2 VCAP (IS2).
The Sparx5 Chip Register Model can be browsed at this location:
https://github.com/microchip-ung/sparx-5_reginfo
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This provides the Sparx5 Ingress Stage 2 (IS2) model and adds it to the
VCAP control instance that will be provided to the VCAP API.
The Sparx5 IS2 C code model is generated from the Sparx5 RTL design model.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This provides the initial VCAP API framework and Sparx5 specific VCAP
implementation.
When the Sparx5 Switchdev driver is initialized it will also initialize its
VCAP module, and this hooks up the concrete Sparx5 VCAP model to the VCAP
API, so that the VCAP API knows what VCAP instances are available.
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently the rx drop is calculated as the sum of multiple HW drop
counters. The issue is that not all the HW drop counters were added for
the rx drop counter. So if for example you have a police that drops
frames, they were not see in the rx drop counter.
Fix this by updating how the rx drop counter is calculated. It is
required to add also RX_RED_PRIO_* HW counters.
Fixes: 12c2d0a5b8e2 ("net: lan966x: add ethtool configuration and statistics")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20221019083056.2744282-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge in the left-over fixes before the net-next pull-request.
Conflicts:
drivers/net/ethernet/mediatek/mtk_ppe.c
ae3ed15da588 ("net: ethernet: mtk_eth_soc: fix state in __mtk_foe_entry_clear")
9d8cb4c096ab ("net: ethernet: mtk_eth_soc: add foe_entry_size to mtk_eth_soc")
https://lore.kernel.org/all/6cb6893b-4921-a068-4c30-1109795110bb@tessares.net/
kernel/bpf/helpers.c
8addbfc7b308 ("bpf: Gate dynptr API behind CAP_BPF")
5679ff2f138f ("bpf: Move bpf_loop and bpf_for_each_map_elem under CAP_BPF")
8a67f2de9b1d ("bpf: expose bpf_strtol and bpf_strtoul to all program types")
https://lore.kernel.org/all/20221003201957.13149-1-daniel@iogearbox.net/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ndo_start_xmit field in net_device_ops is expected to be of type
netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev).
The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
The return type of lan966x_port_xmit should be changed from int to
netdev_tx_t.
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220929182704.64438-1-nhuck@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for port mirroring. It is possible to mirror only one port
at a time and it is possible to have both ingress and egress mirroring.
Frames injected by the CPU don't get egress mirrored because they are
bypassing the analyzer module.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for port police. It is possible to police only on the
ingress side. To be able to add police support also it was required to
add tc-matchall classifier offload support.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove PTP_PF_EXTTS support for non-PCI11x1x devices since they do not support
the PTP-IO Input event triggered timestamping mechanisms added
Fixes: 60942c397af6 ("net: lan743x: Add support for PTP-IO Event Input External Timestamp (extts)")
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ndo_start_xmit field in net_device_ops is expected to be of type
netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev).
The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
The return type of sparx5_port_xmit_impl should be changed from int to
netdev_tx_t.
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a spelling mistake in a netdev_err message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We tell driver developers to always pass NAPI_POLL_WEIGHT
as the weight to netif_napi_add(). This may be confusing
to newcomers, drop the weight argument, those who really
need to tweak the weight can use netif_napi_add_weight().
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN
Link: https://lore.kernel.org/r/20220927132753.750069-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add ets qdisc which allows to mix strict priority with bandwidth-sharing
bands. The ets qdisc needs to be attached as root qdisc.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lan966x switch supports credit based shaper in hardware according to
IEEE Std 802.1Q-2018 Section 8.6.8.2. Add support for cbs configuration
on egress port of lan966x switch.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The tbf qdisc allows to attach a shaper on traffic egress on a port or
on a queue. On port they are attached directly to the root and on queue
they are attached on one of the classes of the parent qdisc.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lan966x switch supports time-based egress shaping in hardware
according to IEEE 802.1Qbv. Add support for TAS configuration on
egress port of lan966x switch.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add registers that are used by taprio to configure the HW.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement mqprio qdisc support using tc command.
The HW supports 8 priority queues from highest (7) to lowest (0).
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a define for the number of priority queues on lan966x. Because there
will be more checks for this, so instead of using hardcoded value all
over the place add a define for this.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for offloading ets qdisc to sparx5 switch.
The ets qdisc makes it possible to configure a mix og strict and
bandwidth-sharing bands. The ets qdisc must be attached as a root qdisc.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for offloading tbf qdisc to sparx5 qdisc.
The tbf qdisc makes it possible to attach a shaper on traffic egressing
from a port or a queue. Per-port tbf qdiscs are attached as a root qdisc
directly and queue tbf qdiscs are attached to one of the classes of a
parent qdisc (such as mqprio).
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for offloading mqprio qdisc to sparx5 switch.
The offloaded mqprio qdisc currently does nothing by itself, but serves
as an attachment point for other qdiscs (tbf, ets etc.)
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add tc setup hook for QoS features.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add Rx IP and TCP checksum offload
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Fix to use multiqueue start/stop APIs
- Change to return NETDEV_TX_BUSY instead of holding the TX skb when busy
- Increase Tx ring size to 128 to address performance issues in some platforms
- Use NAPI_POLL_WEIGHT for Tx Napi handler instead of ring dependent value
- Use multiqueue to register 4 Rx channels
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Function returns error integer, not bool.
Does not have any impact on functionality.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220906065815.3856323-1-casper.casan@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Extend lan966x with RGMII support. The MAC supports all RGMII_* modes.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20220902111548.614525-1-horatiu.vultur@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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There is no dedicated reset for just the switch core. The reset which
is used up until now, is more of a global reset, resetting almost the
whole SoC and cause spurious errors by doing so. Make it possible to
handle the reset elsewhere and make the reset optional.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tools/testing/selftests/net/.gitignore
sort the net-next version and use it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # For drivers/net/ethernet/mellanox/mlxsw
Acked-by: Geoff Levand <geoff@infradead.org> # For ps3_gelic_net and spider_net_ethtool
Acked-by: Tom Lendacky <thomas.lendacky@amd.com> # For drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
Acked-by: Marcin Wojtas <mw@semihalf.com> # For drivers/net/ethernet/marvell/mvpp2
Reviewed-by: Leon Romanovsky <leonro@nvidia.com> # For drivers/net/ethernet/mellanox/mlx{4|5}
Reviewed-by: Shay Agroskin <shayagr@amazon.com> # For drivers/net/ethernet/amazon/ena
Acked-by: Krzysztof Hałasa <khalasa@piap.pl> # For IXP4xx Ethernet
Link: https://lore.kernel.org/r/20220830201457.7984-3-wsa+renesas@sang-engineering.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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