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virtnet_rq_free_unused_buf() helper function to free the buffer
already exists. Avoid code duplication by reusing existing function.
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Parav Pandit <parav@nvidia.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Westphal says:
====================
Netfilter updates for net-next
following patch set includes netfilter updates for your *net-next* tree.
1. Replace pr_debug use with nf_log infra for debugging in sctp
conntrack.
2. Remove pr_debug calls, they are either useless or we have better
options in place.
3. Avoid repeated load of ct->status in some spots.
Some bit-flags cannot change during the lifeetime of
a connection, so no need to re-fetch those.
4. Avoid uneeded nesting of rcu_read_lock during tuple lookup.
5. Remove the CLUSTERIP target. Marked as obsolete for years,
and we still have WARN splats wrt. races of the out-of-band
/proc interface installed by this target.
6. Add static key to nf_tables to avoid the retpoline mitigation
if/else if cascade provided the cpu doesn't need the retpoline thunk.
7. add nf_tables objref calls to the retpoline mitigation workaround.
8. Split parts of nft_ct.c that do not need symbols exported by
the conntrack modules and place them in nf_tables directly.
This allows to avoid indirect call for 'ct status' checks.
9. Add 'destroy' commands to nf_tables. They are identical
to the existing 'delete' commands, but do not indicate
an error if the referenced object (set, chain, rule...)
did not exist, from Fernando.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Gerhard Engleder says:
====================
tsnep: XDP support
Implement XDP support for tsnep driver. I tried to follow existing
drivers like igb/igc as far as possible. Some prework was already done
in previous patch series, so in this series only actual XDP stuff is
included.
Thanks for the NetDev 0x14 slides "Add XDP support on a NIC driver".
Some commits contain changes not related to XDP but found during review
of XDP support patches.
v5:
- fix spelling of 'subtract' in commit message (Alexander Duyck)
- call txq_trans_cond_update() only if TX is complete (Alexander Duyck)
- remove const from static functions (Alexander Duyck)
- replace TX spin_lock with __netif_tx_lock (Alexander Duyck)
- use xdp_return_frame_rx_napi() instead of xdp_return_frame_bulk() (Alexander Duyck)
- eliminate __TSNEP_DOWN (Alexander Duyck)
- introduce single function for xdp_rxq and napi init (Alexander Duyck)
- use TX queue of pair instead of expensive processor id modulo for XDP_TX (Alexander Duyck)
- eliminate processor id modulo in tsnep_netdev_xdp_xmit (Alexander Duyck)
- use bitmap for TX type and add fragment type (Alexander Duyck)
- always use XDP_PACKET_HEADROOM and DMA_BIDIRECTIONAL
v4:
- remove process context from spin_lock_bh commit message (Alexander Lobakin)
- move tsnep_adapter::state to prevent 4 byte hole (Alexander Lobakin)
- braces for bitops in combination logical ops (Alexander Lobakin)
- make various pointers const (Alexander Lobakin)
- '!i' instead of 'i == 0' (Alexander Lobakin)
- removed redundant braces (Alexander Lobakin)
- squash variables into same line if same type (Alexander Lobakin)
- use fact that ::skb and ::xdpf use same slot for simplification (Alexander Lobakin)
- use u32 for smp_processor_id() (Alexander Lobakin)
- don't add $(tsnep-y) to $(tsnep-objs) (Alexander Lobakin)
- use rev xmas tree in tsnep_netdev_open() (Alexander Lobakin)
- do not move tsnep_queue::napi (Alexander Lobakin)
- call xdp_init_buff() only once (Alexander Lobakin)
- get nq and tx only once for XDP TX (Alexander Lobakin)
- move XDP BPF program setup to end of patch series (Alexander Lobakin)
- check for XDP state change and prevent redundant down-ups (Alexander Lobakin)
- access tsnep_adapter::xdp_prog only with READ_ONCE in RX path (Alexander Lobakin)
- forward NAPI budget to napi_consume_skb() (Alexander Lobakin)
- fix errno leftover in tsnep_xdp_xmit_back() (Dan Carpenter)
- eliminate tsnep_xdp_is_enabled() by setting RX offset during init
v3:
- use spin_lock_bh for TX (Paolo Abeni)
- add comment for XDP TX descriptor available check (Maciej Fijalkowski)
- return value bool for tsnep_xdp_xmit_frame_ring() (Saeed Mahameed)
- do not print DMA mapping error (Saeed Mahameed)
- use reverse xmas tree variable declaration (Saeed Mahameed)
- move struct xdp_rxq_info to end of struct tsnep_rx (Maciej Fijalkowski)
- check __TSNEP_DOWN flag on close to prevent double free (Saeed Mahameed)
- describe TSNEP_RX_INLINE_METADATA_SIZE in comment (Maciej Fijalkowski)
- substract TSNEP_RX_INLINE_METADATA_SIZE after DMA sync (Maciej Fijalkowski)
- use enum tsnep_tx_type for tsnep_xdp_tx_map (Saeed Mahameed)
- use nxmit as loop iterator in tsnep_netdev_xdp_xmit (Saeed Mahameed)
- stop netdev in tsnep_netdev_close() which is called during BPF prog setup
v2:
- move tsnep_xdp_xmit_back() to commit where it is used (Paolo Abeni)
- remove inline from tsnep_rx_offset() (Paolo Abeni)
- remove inline from tsnep_rx_offset_xdp() (Paolo Abeni)
- simplify tsnep_xdp_run_prog() call by moving xdp_status update to it (Paolo Abeni)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement setup of BPF programs for XDP RX path with command
XDP_SETUP_PROG of ndo_bpf(). This is the final step for XDP RX path
support.
There is no need to reinit the RX queues as they are always prepared for
XDP.
Additionally remove $(tsnep-y) from $(tsnep-objs) because it is added
automatically.
Test results with A53 1.2GHz:
XDP_DROP (samples/bpf/xdp1)
proto 17: 883878 pkt/s
XDP_TX (samples/bpf/xdp2)
proto 17: 255693 pkt/s
XDP_REDIRECT (samples/bpf/xdpsock)
sock0@eth2:0 rxdrop xdp-drv
pps pkts 1.00
rx 855,582 5,404,523
tx 0 0
XDP_REDIRECT (samples/bpf/xdp_redirect)
eth2->eth1 613,267 rx/s 0 err,drop/s 613,272 xmit/s
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If BPF program is set up, then run BPF program for every received frame
and execute the selected action.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Register xdp_rxq_info with page_pool memory model. This is needed for
XDP buffer handling.
Additionally fix error path by removing call of tsnep_phy_close() after
failed tsnep_phy_open().
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Always reserve XDP_PACKET_HEADROOM in front of RX buffer. Similar DMA
direction is always set to DMA_BIDIRECTIONAL. This eliminates the need
for RX queue reconfiguration during BPF program setup. The RX queue is
always prepared for XDP.
No negative impact of DMA_BIDIRECTIONAL was measured.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Subtract size of metadata in front of received data only once. This
simplifies the RX code.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement ndo_xdp_xmit() for XDP TX support. Support for fragmented XDP
frames is included.
Also some braces and logic cleanups are done in normal TX path to keep
both TX paths in sync.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Printing in data path shall be avoided. DMA mapping error is already
counted in stats so printing is not necessary.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NAPI budget must be forwarded to napi_consume_skb(). It is used to
detect non-NAPI context.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
TX spin_lock can be eliminated, because the normal TX path is already
protected with __netif_tx_lock and this lock can be used for access to
queue outside of normal TX path too.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When netdev->flags has IFF_PROMISC or IFF_ALLMULTI, set the
corresponding bits in the MAC Control Register (MACCR).
This change is based on code from the ftgmac100 driver, see
ftgmac100_start_hw() in ftgmac100.c
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Per cpu entries are no longer used in consideration
for doing gc or not. Remove the extra per cpu entries
pull to directly check for time and perform gc.
Signed-off-by: Tanmay Bhushan <007047221b@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Siddharth Vadapalli says:
====================
Add PPS support to am65-cpts driver
The CPTS hardware doesn't support PPS signal generation. Using the GenFx
(periodic signal generator) function, it is possible to model a PPS signal
followed by routing it via the time sync router to the CPTS_HWy_TS_PUSH
(hardware time stamp) input, in order to generate timestamps at 1 second
intervals.
This series adds driver support for enabling PPS signal generation.
Additionally, the documentation for the am65-cpts driver is updated with
the bindings for the "ti,pps" property, which is used to inform the
pair [CPTS_HWy_TS_PUSH, GenFx] to the cpts driver.
Changes from v1:
1. Drop device-tree patches.
2. Address Roger's comments on the:
"net: ethernet: ti: am65-cpts: add pps support" patch.
3. Collect Reviewed-by tag from Rob Herring.
v1:
https://lore.kernel.org/r/20230111114429.1297557-1-s-vadapalli@ti.com/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
CPTS doesn't have HW support for PPS ("pulse per second”) signal
generation, but it can be modeled by using Time Sync Router and routing
GenFx (periodic signal generator) output to CPTS_HWy_TS_PUSH (hardware time
stamp) input, and configuring GenFx to generate 1sec pulses.
+------------------------+
| CPTS |
| |
+--->CPTS_HW4_PUSH GENFx+---+
| | | |
| +------------------------+ |
| |
+--------------------------------+
Add corresponding support to am65-cpts driver. The DT property "ti,pps"
has to be used to enable PPS support and configure pair
[CPTS_HWy_TS_PUSH, GenFx].
Once enabled, PPS can be tested using ppstest tool:
# ./ppstest /dev/pps0
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the ti,pps property used to indicate the pair of HWx_TS_PUSH input and
the TS_GENFy output.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Clark Wang says:
====================
stmmac: Add eqos and fec support for imx93
This patchset add imx93 support for dwmac-imx glue driver.
There are some changes of GPR implement.
And add fec and eqos nodes for imx93 dts.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Enable FEC function for imx93-11x11-evk board.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Enable EQoS function for imx93-11x11-evk board.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add FEC node for imx93 platform.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add EQoS node for imx93 platform.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add mx93 compatible string for fec driver.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add mx93 compatible string for eqos driver.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add imx93 platform support for dwmac-imx driver.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce NFT_MSG_DESTROY* message type. The destroy operation performs a
delete operation but ignoring the ENOENT errors.
This is useful for the transaction semantics, where failing to delete an
object which does not exist results in aborting the transaction.
This new command allows the transaction to proceed in case the object
does not exist.
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
nft_ct expression cannot be made builtin to nf_tables without also
forcing the conntrack itself to be builtin.
However, this can be avoided by splitting retrieval of a few
selector keys that only need to access the nf_conn structure,
i.e. no function calls to nf_conntrack code.
Many rulesets start with something like
"ct status established,related accept"
With this change, this no longer requires an indirect call, which
gives about 1.8% more throughput with a simple conntrack-enabled
forwarding test (retpoline thunk used).
Signed-off-by: Florian Westphal <fw@strlen.de>
If CONFIG_RETPOLINE is enabled nf_tables avoids indirect calls for
builtin expressions.
On newer cpus indirect calls do not go through the retpoline thunk
anymore, even for RETPOLINE=y builds.
Just like with the new tc retpoline wrappers:
Add a static key to skip the if / else if cascade if the cpu
does not require retpolines.
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Marked as 'to be removed soon' since kernel 4.1 (2015).
Functionality was superseded by the 'cluster' match, added in kernel
2.6.30 (2009).
clusterip_tg_check still has races that can give
proc_dir_entry 'ipt_CLUSTERIP/10.1.1.2' already registered
followed by a WARN splat.
Remove it instead of trying to fix this up again.
clusterip uapi header is left as-is for now.
Signed-off-by: Florian Westphal <fw@strlen.de>
Move rcu_read_lock/unlock to nf_conntrack_find_get(), this avoids
nested rcu_read_lock call from resolve_normal_ct().
Signed-off-by: Florian Westphal <fw@strlen.de>
Compiler can't merge the two test_bit() calls, so load ct->status
once and use non-atomic accesses.
This is fine because IPS_EXPECTED or NAT_CLASH are either set at ct
creation time or not at all, but compiler can't know that.
Signed-off-by: Florian Westphal <fw@strlen.de>
Those are all useless or dubious.
getorigdst() is called via setsockopt, so return value/errno will
already indicate an appropriate error.
For other pr_debug calls there are better replacements, such as
slab/slub debugging or 'conntrack -E' (ctnetlink events).
Signed-off-by: Florian Westphal <fw@strlen.de>
The conntrack logging facilities include useful info such as in/out
interface names and packet headers.
Use those in more places instead of pr_debug calls.
Furthermore, several pr_debug calls can be removed, they are useless
on production machines due to the sheer volume of log messages.
Signed-off-by: Florian Westphal <fw@strlen.de>
Michael Walle says:
====================
net: mdio: Continue separating C22 and C45
I've picked this older series from Andrew up and rebased it onto
the latest net-next.
This is the third (and hopefully last) patch set in the series which
separates the C22 and C45 MDIO bus transactions at the API level to the
MDIO bus drivers.
The first patch is a newer version of the former "net: dsa: Separate C22
and C45 MDIO bus transaction methods", which only contains the mt7530
changes. Although posted as v1, because this is a new series, there
is a changelog included in the patch comment section.
The last patch is a new one, which isn't from Andrew's tree.
====================
Link: https://lore.kernel.org/r/20230116-net-next-c45-seperation-part-3-v1-0-0c53afa56aad@walle.cc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The rswitch MDIO bus driver only supports C45 transfers. Update the
function names to make this clear, pass the mmd as a parameter, and
register the accessors to the _c45 ops of the bus driver structure.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The T1 MDIO bus driver can perform both C22 and C45 transfers. Create
separate functions for each and register the C45 versions using the
new API calls where appropriate.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The sja1105 MDIO bus driver only supports C45 transfers. Update the
function names to make this clear, pass the mmd as a parameter, and
register the accessors to the _c45 ops of the bus driver structure.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The xgbe driver reuses MII_ADDR_C45 for its own purpose. The values
derived with it are never passed to phylib or a linux MDIO bus driver.
In order that MII_ADDR_C45 can be removed, add an XGBE specific
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The xgbe MDIO bus driver can perform both C22 and C45 transfers, when
using its MDIO bus hardware. The SFP I2C mdio bus driver only supports
C22. Create separate functions for each and register the C45 versions
using the new API calls where appropriate.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The hns MDIO bus driver can perform both C22 and C45 transfers.
Create separate functions for each and register the C45 versions using
the new API calls where appropriate.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When performing a C45 bus transaction, make use of the c45 variants of
the bus read/write helpers. The ability to pass a special register
value is being removed to clean up the mdio bus driver API.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The ixgbe MDIO bus driver can perform both C22 and C45 transfers.
Create separate functions for each and register the C45 versions using
the new API calls where appropriate.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The macb MDIO bus driver can perform both C22 and C45 transfers.
Create separate functions for each and register the C45 versions using
the new API calls where appropriate.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The nixge MDIO bus driver can perform both C22 and C45 transfers.
Create separate functions for each and register the C45 versions using
the new API calls where appropriate.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The sxgdb MDIO bus driver can perform both C22 and C45 transfers.
Create separate functions for each and register the C45 versions using
the new API calls where appropriate.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mt7530 does support C45, but its uses a mix of registering its MDIO
bus and providing its private MDIO bus to the DSA core, too. This makes
the change a bit more complex.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Convert various mult-bit fields to be defined using GENMASK/FIELD_PREP.
Simplify the code with the ternary operator.
Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230116103839.84087-1-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'i2c-fwnode-api-2023017' of https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Wolfram Sang says:
====================
Immutable branch adding fwnode API to the I2C core
I2C changes requested by Russell King.
This allows him to rework SFP code further.
* tag 'i2c-fwnode-api-2023017' of https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: add fwnode APIs
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Link: https://lore.kernel.org/r/Y8ZhI4g0wsvpjokd@ninjato/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
