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After the RX path refactor the mentioned function is expected to run
frequently, let's optimize it a bit.
Scan for ready subflow from the last processed one, and stop after
traversing the list once or reaching the msk memory limit - instead of
looking for dubious per-subflow conditions.
Also re-order the memory limit checks, to avoid duplicate tests.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-7-4a47d90d7998@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After the RX path refactor, it become a wrapper for sk_rmem_alloc
access, with a slightly misleading name. Just drop it.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-6-4a47d90d7998@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After the previous patch we can remove the forward_alloc_get
proto callback, basically reverting commit 292e6077b040 ("net: introduce
sk_forward_alloc_get()") and commit 66d58f046c9d ("net: use
sk_forward_alloc_get() in sk_get_meminfo()").
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-5-4a47d90d7998@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After the previous patch, updating sk_forward_memory is cheap and
we can drop a lot of complexity from the MPTCP memory accounting,
removing the custom fwd mem allocations for rmem.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-4-4a47d90d7998@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After commit c2e6048fa1cf ("mptcp: fix race in release_cb") we can
move the whole MPTCP rx path under the socket lock leveraging the
release_cb.
We can drop a bunch of spin_lock pairs in the receive functions, use
a single receive queue and invoke __mptcp_move_skbs only when subflows
ask for it.
This will allow more cleanup in the next patch.
Some changes are worth specific mention:
The msk rcvbuf update now always happens under both the msk and the
subflow socket lock: we can drop a bunch of ONCE annotation and
consolidate the checks.
When the skbs move is delayed at msk release callback time, even the
msk rcvbuf update is delayed; additionally take care of such action in
__mptcp_move_skbs().
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-3-4a47d90d7998@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When we will move the whole RX path under the msk socket lock, updating
the already queued skb for passive fastopen socket at 3rd ack time will
be extremely painful and race prone
The map_seq for already enqueued skbs is used only to allow correct
coalescing with later data; preventing collapsing to the first skb of
a fastopen connect we can completely remove the
__mptcp_fastopen_gen_msk_ackseq() helper.
Before dropping this helper, a new item had to be added to the
mptcp_skb_cb structure. Because this item will be frequently tested in
the fast path -- almost on every packet -- and because there is free
space there, a single byte is used instead of a bitfield. This micro
optimisation slightly reduces the number of CPU operations to do the
associated check.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-2-4a47d90d7998@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Consolidate all the cleanup actions requiring the worker in a single
helper and ensure the dummy data fin creation for fallback socket is
performed only when the tcp rx queue is empty.
There are no functional changes intended, but this will simplify the
next patch, when the tcp rx queue spooling could be delayed at release_cb
time.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-1-4a47d90d7998@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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nfc_llc_unregister() has been unused since it was added in 2012's
commit 67cccfe17d1b ("NFC: Add an LLC Core layer to HCI")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250219020258.297995-1-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fixes minor spelling errors:
- `simult_flows.sh`: "al testcases" -> "all testcases"
- `psock_tpacket.c`: "accross" -> "across"
Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250218165923.20740-1-suchitkarunakaran@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Russell King says:
====================
net: stmmac: further cleanups
This small series does further cleanups to the stmmac driver:
1. Name priv->pause to indicate that it's a timeout and clarify the
units of the "pause" module parameter
2. Remove useless priv->flow_ctrl member and deprecate the useless
"flow_ctrl" module parameter
3. Fix long-standing signed-ness issue with "speed" passed around the
driver from the mac_link_up method.
====================
Link: https://patch.msgid.link/Z7Rf2daOaf778TOg@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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priv->plat->fix_mac_speed() is called from stmmac_mac_link_up(), which
is passed the speed as an "int". However, fix_mac_speed() implicitly
casts this to an unsigned int. Some platform glue code print this value
using %u, others with %d. Some implicitly cast it back to an int, and
others to u32.
Good practice is to use one type and only one type to represent a value
being passed around a driver.
Switch all of these over to consistently use "int" when dealing with a
speed passed from stmmac_mac_link_up(), even though the speed will
always be positive.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://patch.msgid.link/E1tkKmN-004ObM-Ge@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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priv->flow_ctrl is only accessed by stmmac_main.c, and the only place
that it is read is in stmmac_mac_flow_ctrl(). This function is only
called from stmmac_mac_link_up() which always sets priv->flow_ctrl
immediately before calling this function.
Therefore, initialising this at probe time is ineffectual because it
will always be overwritten before it's read. As such, the "flow_ctrl"
module parameter has been useless for some time. Rather than remove
the module parameter, which would risk module load failure, change the
description to indicate that it is obsolete, and warn if it is set by
userspace.
Moreover, storing the value in the stmmac_priv has no benefit as it's
set and then immediately read stmmac_mac_flow_ctrl(). Instead, pass it
as a parameter to this function..
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://patch.msgid.link/E1tkKmI-004ObG-DL@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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priv->pause corresponds with "pause_time" in the 802.3 specification,
and is also called "pause_time" in the various MAC backends. For
consistency, use the same name in the core stmmac code.
Clarify the units of the "pause" module parameter which sets up this
struct member to indicate that it's in units of the pause_quanta
defined by 802.3, which is 512 bit times.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Link: https://patch.msgid.link/E1tkKmD-004ObA-9K@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add more logs to assist in debugging and monitoring
driver behaviour, making it easier to identify potential
issues during development and testing.
Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://patch.msgid.link/1739842455-23899-1-git-send-email-ernis@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Ido Schimmel says:
====================
net: fib_rules: Add port mask support
In some deployments users would like to encode path information into
certain bits of the IPv6 flow label, the UDP source port and the DSCP
field and use this information to route packets accordingly.
Redirecting traffic to a routing table based on specific bits in the UDP
source port is not currently possible. Only exact match and range are
currently supported by FIB rules.
This patchset extends FIB rules to match on layer 4 ports with an
optional mask. The mask is not supported when matching on a range. A
future patchset will add support for matching on the DSCP field with an
optional mask.
Patches #1-#6 gradually extend FIB rules to match on layer 4 ports with
an optional mask.
Patches #7-#8 add test cases for FIB rule port matching.
iproute2 support can be found here [1].
[1] https://github.com/idosch/iproute2/tree/submit/fib_rule_mask_v1
====================
Link: https://patch.msgid.link/20250217134109.311176-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add tests for FIB rules that match on source and destination ports with
a mask. Test both good and bad flows.
# ./fib_rule_tests.sh
IPv6 FIB rule tests
[...]
TEST: rule6 check: sport and dport redirect to table [ OK ]
TEST: rule6 check: sport and dport no redirect to table [ OK ]
TEST: rule6 del by pref: sport and dport redirect to table [ OK ]
TEST: rule6 check: sport and dport range redirect to table [ OK ]
TEST: rule6 check: sport and dport range no redirect to table [ OK ]
TEST: rule6 del by pref: sport and dport range redirect to table [ OK ]
TEST: rule6 check: sport and dport masked redirect to table [ OK ]
TEST: rule6 check: sport and dport masked no redirect to table [ OK ]
TEST: rule6 del by pref: sport and dport masked redirect to table [ OK ]
[...]
Tests passed: 292
Tests failed: 0
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-9-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently, only matching on specific ports is tested. Add port range
testing to make sure this use case does not regress.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-8-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add new port mask attributes to the spec. Example:
# ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/rt_rule.yaml \
--do newrule \
--json '{"family": 2, "sport-range": { "start": 12345, "end": 12345 }, "sport-mask": 65535, "action": 1, "table": 1}'
None
# ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/rt_rule.yaml \
--do newrule \
--json '{"family": 2, "dport-range": { "start": 54321, "end": 54321 }, "dport-mask": 65535, "action": 1, "table": 2}'
None
$ ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/rt_rule.yaml \
--dump getrule --json '{"family": 2}' --output-json | jq '.[]'
[...]
{
"table": 2,
"suppress-prefixlen": "0xffffffff",
"protocol": 0,
"priority": 32764,
"dport-range": {
"start": 54321,
"end": 54321
},
"dport-mask": "0xffff",
"family": 2,
"dst-len": 0,
"src-len": 0,
"tos": 0,
"action": "to-tbl",
"flags": 0
}
{
"table": 1,
"suppress-prefixlen": "0xffffffff",
"protocol": 0,
"priority": 32765,
"sport-range": {
"start": 12345,
"end": 12345
},
"sport-mask": "0xffff",
"family": 2,
"dst-len": 0,
"src-len": 0,
"tos": 0,
"action": "to-tbl",
"flags": 0
}
[...]
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-7-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Allow user space to configure FIB rules that match on the source and
destination ports with a mask, now that support has been added to the
FIB rule core and the IPv4 and IPv6 address families.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-6-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Extend IPv6 FIB rules to match on source and destination ports using a
mask. Note that the mask is only set when not matching on a range.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-5-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Extend IPv4 FIB rules to match on source and destination ports using a
mask. Note that the mask is only set when not matching on a range.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-4-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for configuring and deleting rules that match on source and
destination ports using a mask as well as support for dumping such rules
to user space.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add attributes that allow matching on source and destination ports with
a mask. Matching on the source port with a mask is needed in deployments
where users encode path information into certain bits of the UDP source
port.
Temporarily set the type of the attributes to 'NLA_REJECT' while support
is being added.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250217134109.311176-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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BCM53101 is a ethernet switch, very similar to the BCM53115.
Signed-off-by: Claus Stovgaard <claus.stovgaard@prevas.dk>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250217080503.1390282-2-claus.stovgaard@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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BCM53101 is a ethernet switch, very similar to the BCM53115.
Enable support for it, in the existing b53 dsa driver.
Signed-off-by: Torben Nielsen <torben.nielsen@prevas.dk>
Signed-off-by: Claus Stovgaard <claus.stovgaard@prevas.dk>
Link: https://patch.msgid.link/20250217080503.1390282-1-claus.stovgaard@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Roger Quadros says:
====================
net: ethernet: ti: am65-cpsw: drop multiple functions and code cleanup
We have 2 tx completion functions to handle single-port vs multi-port
variants. Merge them into one function to make maintenance easier.
We also have 2 functions to handle TX completion for SKB vs XDP.
Get rid of them too.
Also do some minor cleanups.
====================
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Drop separate TX completion functions for SKB and XDP. To do that
use the SW_DATA mechanism to store ndev and skb/xdpf for TX packets.
Use BUILD_BUG_ON_MSG() to fail build if SW_DATA size exceeds whats
available. i.e. AM65_CPSW_NAV_SW_DATA_SIZE.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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am65_cpsw_run_xdp()
This allows us to re-use am65_cpsw_run_xdp() for zero copy
case. Add AM65_CPSW_XDP_TX case for successful XDP_TX so we don't
free the page while in flight.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In am65_cpsw_run_xdp() instead of goto followed by return, simply return.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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am65_cpsw_run_xdp() can figure out the cpu id itself.
No need to pass it around 2 functions so drop it.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The only difference between am65_cpsw_nuss_tx_compl_packets_2g() and
am65_cpsw_nuss_tx_compl_packets() is the usage of spin_lock() and
netdev_tx_completed_queue() + am65_cpsw_nuss_tx_wake at every packet
in the latter.
Insted of having 2 separate functions for TX completion, merge them
into one. This will reduce code duplication and make maintenance easier.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Shradha Gupta says:
====================
net: Enable Big TCP for MANA devices
Allow the max gso/gro aggregated pkt size to go up to GSO_MAX_SIZE for
MANA NIC. On Azure, this not possible without allowing the same for
netvsc NIC (as the NICs are bonded together).
Therefore, we use netif_set_tso_max_size() to set max aggregated pkt
size
to VF's tso_max_size for netvsc too, when the data path is switched over
to the VF
The first patch allows MANA to configure aggregated pkt size of up-to
GSO_MAX_SIZE
The second patch enables the same on the netvsc NIC, if the data path
for the bonded NIC is switched to the VF
---
Changes in v3
* Add ipv6_hopopt_jumbo_remove() while sending Big TCP packets
---
Changes in v2
* Instead of using 'tcp segment' throughout the patch used the words
'aggregated pkt size'
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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On Azure, increasing VF's gso/gro packet size to up-to GSO_MAX_SIZE
is not possible without allowing the same for netvsc NIC
(as the NICs are bonded together). For bonded NICs, the min of the max
aggregated pkt size of the members is propagated in the stack.
Therefore, we use netif_set_tso_max_size() to set max aggregated pkt size
to VF's packet size for netvsc too, when the data path is switched over
to the VF
Tested on azure env with Accelerated Networking enabled and disabled.
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allow the max aggregated pkt size to go up-to GSO_MAX_SIZE for MANA NIC.
This patch only increases the max allowable gso/gro pkt size for MANA
devices and does not change the defaults.
Following are the perf benefits by increasing the pkt aggregate size from
legacy gso_max_size value(64K) to newer one(up-to 511K
IPv4 tests
for i in {1..10}; do netperf -t TCP_RR -H 10.0.0.5 -p50000 -- -r80000,80000
-O MIN_LATENCY,P90_LATENCY,P99_LATENCY,THROUGHPUT|tail -1; done
min p90 p99 Throughput gso_max_size
93 171 194 6594.25
97 154 180 7183.74
95 165 189 6927.86
96 165 188 6976.04
93 154 185 7338.05 64K
93 168 189 6938.03
94 169 189 6784.93
92 166 189 7117.56
94 179 191 6678.44
95 157 183 7277.81
min p90 p99 Throughput
93 134 146 8448.75
95 134 140 8396.54
94 137 148 8204.12
94 137 148 8244.41
94 128 139 8666.52 80K
94 141 153 8116.86
94 138 149 8163.92
92 135 142 8362.72
92 134 142 8497.57
93 136 148 8393.23
IPv6 Tests
for i in {1..10}; do netperf -t TCP_RR -H fd00:9013:cadd::4 -p50000 --
-r80000,80000 -O MIN_LATENCY,P90_LATENCY,P99_LATENCY,THROUGHPUT|tail -1; done
min p90 p99 Throughput gso_max_size
108 165 170 6673.2
101 169 189 6451.69
101 165 169 6737.65
102 167 175 6614.64
101 178 189 6247.13 64K
107 163 169 6678.63
106 176 187 6350.86
100 164 169 6617.36
102 163 170 6849.21
102 168 175 6605.7
min p90 p99 Throughput
108 155 166 7183
110 154 163 7268.87
109 152 159 7434.35
107 145 157 7569.15
107 149 164 7496.17 80K
110 154 159 7245.85
108 156 162 7266.24
109 145 158 7526.66
106 145 151 7785.75
111 148 157 7246.65
Tested on azure env with Accelerated Networking enabled and disabled.
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Willem de Bruijn says:
====================
net: deduplicate cookie logic
Reuse standard sk, ip and ipv6 cookie init handlers where possible.
Avoid repeated open coding of the same logic.
Harmonize feature sets across protocols.
Make IPv4 and IPv6 logic more alike.
Simplify adding future new fields with a single init point.
====================
Link: https://patch.msgid.link/20250214222720.3205500-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Avoid open coding the same logic.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-8-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This initializes tclass and dontfrag before cmsg parsing, removing the
need for explicit checks against -1 in each caller.
Leave hlimit set to -1, because its full initialization
(in ip6_sk_dst_hoplimit) requires more state (dst, flowi6, ..).
This also prepares for calling sockcm_init in a follow-on patch.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-7-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Do not modify socket fields if it can be avoided.
The current code predates the introduction of ip cookies in commit
aa6615814533 ("ipv4: processing ancillary IP_TOS or IP_TTL"). Now that
cookies exist and support tos, update that field directly.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-6-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Initialize the ip cookie tos field when initializing the cookie, in
ipcm_init_sk.
The existing code inverts the standard pattern for initializing cookie
fields. Default is to initialize the field from the sk, then possibly
overwrite that when parsing cmsgs (the unlikely case).
This field inverts that, setting the field to an illegal value and
after cmsg parsing checking whether the value is still illegal and
thus should be overridden.
Be careful to always apply mask INET_DSCP_MASK, as before.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-5-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Avoid open coding the same logic.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-4-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Avoid open coding initialization of sockcm fields.
Avoid reading the sk_priority field twice.
This ensures all callers, existing and future, will correctly try a
cmsg passed mark before sk_mark.
This patch extends support for cmsg mark to:
packet_spkt and packet_tpacket and net/can/raw.c.
This patch extends support for cmsg priority to:
packet_spkt and packet_tpacket.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-3-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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TCP only reads the tsflags field. Don't bother initializing others.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-2-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As kernel test robot reported, the following warning occurs:
cocci warnings: (new ones prefixed by >>)
>> drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c:582:6-8: opportunity for str_enabled_disabled(on)
Replace ternary (condition ? "enabled" : "disabled") with
str_enabled_disabled() from string_choices.h to improve readability,
maintain uniform string usage, and reduce binary size through linker
deduplication.
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Link: https://patch.msgid.link/20250217155833.3105775-1-eleanor15x@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The old_flags variable is declared twice in __dev_change_flags(),
causing a shadow variable warning. This patch fixes the issue by
removing the redundant declaration, reusing the existing old_flags
variable instead.
net/core/dev.c:9225:16: warning: declaration shadows a local variable [-Wshadow]
9225 | unsigned int old_flags = dev->flags;
| ^
net/core/dev.c:9185:15: note: previous declaration is here
9185 | unsigned int old_flags = dev->flags;
| ^
1 warning generated.
Remove the redundant inner declaration and reuse the existing old_flags
variable since its value is not needed outside the if block, and it is
safe to reuse the variable. This eliminates the warning while
maintaining the same functionality.
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250217-old_flags-v2-1-4cda3b43a35f@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix few spelling mistakes in net selftests
Signed-off-by: Chandra Mohan Sundar <chandru.dav@gmail.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20250217141520.81033-1-chandru.dav@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add EEE support to MediaTek SoC Ethernet. The register fields are
similar to the ones in MT7531, except that the LPI threshold is in
milliseconds.
Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20250217094022.1065436-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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sparse warning:
sparse: symbol 'ugeth_mac_ops' was not declared. Should it be
static.
Add static to fix sparse warnings and add const. phylink_create() will
accept a const struct.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/202502141128.9HfxcdIE-lkp@intel.com
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Heiner Kallweit says:
====================
net: phy: improve and simplify EEE handling in phylib
This series improves and simplifies phylib's EEE handling.
====================
Link: https://patch.msgid.link/3caa3151-13ac-44a8-9bb6-20f82563f698@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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genphy_c45_eee_is_active
After the last user has gone, we can remove the local advertisement
parameter from genphy_c45_eee_is_active.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/bd121330-9e28-4bc8-8422-794bd54d561f@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now that disabled EEE modes are considered when populating
advertising_eee, we can use this bitmap here instead of reading
the PHY register.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/e57ed3d4-d0bc-4f91-83f6-8f48dfb6d7d7@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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