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Commit Graph

1456 Commits

Author SHA1 Message Date
Gal Pressman
79d89fab22 sfc: Remove newline at the end of a netlink error message
Netlink error messages should not have a newline at the end of the
string.

Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20250226093904.6632-4-gal@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-27 18:11:37 -08:00
Edward Cree
5ea73bf3c4 sfc: document devlink flash support
Update the information in sfc's devlink documentation including
 support for firmware update with devlink flash.
Also update the help text for CONFIG_SFC_MTD, as it is no longer
 strictly required for firmware updates.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/3476b0ef04a0944f03e0b771ec8ed1a9c70db4dc.1739186253.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-11 17:12:17 -08:00
Edward Cree
3ed63980ae sfc: deploy devlink flash images to NIC over MCDI
Use MC_CMD_NVRAM_* wrappers to write the firmware to the partition
 identified from the image header.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/a746335876b621b3e54cf4e49948148e349a1745.1739186253.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-11 17:12:17 -08:00
Edward Cree
d41987e906 sfc: extend NVRAM MCDI handlers
Support variable write-alignment, and background updates.  The latter
 allows other MCDI to continue while the device is processing an
 MC_CMD_NVRAM_UPDATE_FINISH, since this can take a long time owing to
 e.g. cryptographic signature verification.
Expose these handlers in mcdi.h, and build them even when
 CONFIG_SFC_MTD=n, so they can be used for devlink flash in a
 subsequent patch.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/de3d9e14fee69e15d95b46258401a93b75659f78.1739186253.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-11 17:12:17 -08:00
Edward Cree
fd118a77ed sfc: parse headers of devlink flash images
This parsing is necessary to obtain the metadata which will be
 used in a subsequent patch to write the image to the device.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/65318300f3f1b1462925f917f7c0d0ac833955ae.1739186253.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-11 17:12:17 -08:00
Jakub Kicinski
385f186aba Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.13-rc6).

No conflicts.

Adjacent changes:

include/linux/if_vlan.h
  f91a5b8089 ("af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK")
  3f330db306 ("net: reformat kdoc return statements")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-03 16:29:29 -08:00
Liang Jie
a8620de72e net: sfc: Correct key_len for efx_tc_ct_zone_ht_params
In efx_tc_ct_zone_ht_params, the key_len was previously set to
offsetof(struct efx_tc_ct_zone, linkage). This calculation is incorrect
because it includes any padding between the zone field and the linkage
field due to structure alignment, which can vary between systems.

This patch updates key_len to use sizeof_field(struct efx_tc_ct_zone, zone)
, ensuring that the hash table correctly uses the zone as the key. This fix
prevents potential hash lookup errors and improves connection tracking
reliability.

Fixes: c3bb5c6acd ("sfc: functions to register for conntrack zone offload")
Signed-off-by: Liang Jie <liangjie@lixiang.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20241230093709.3226854-1-buaajxlj@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-02 17:11:41 -08:00
YiFei Zhu
85101bda13 sfc: Use netdev refcount tracking in struct efx_async_filter_insertion
I was debugging some netdev refcount issues in OpenOnload, and one
of the places I was looking at was in the sfc driver. Only
struct efx_async_filter_insertion was not using netdev refcount tracker,
so add it here. GFP_ATOMIC because this code path is called by
ndo_rx_flow_steer which holds RCU.

This patch should be a no-op if !CONFIG_NET_DEV_REFCNT_TRACKER

Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241219173004.2615655-1-zhuyifei@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:11:49 -08:00
Andy Moreton
455e135c30 sfc: remove efx_writed_page_locked
From: Andy Moreton <andy.moreton@amd.com>

efx_writed_page_locked is a workaround for Siena hardware that is not
needed on later adapters, and has no callers. Remove it.

Signed-off-by: Andy Moreton <andy.moreton@amd.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20241218135930.2350358-1-edward.cree@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-19 19:14:39 -08:00
Edward Cree
9e43ad7a1e net: ethtool: only allow set_rxnfc with rss + ring_cookie if driver opts in
Ethtool ntuple filters with FLOW_RSS were originally defined as adding
 the base queue ID (ring_cookie) to the value from the indirection table,
 so that the same table could distribute over more than one set of queues
 when used by different filters.
However, some drivers / hardware ignore the ring_cookie, and simply use
 the indirection table entries as queue IDs directly.  Thus, for drivers
 which have not opted in by setting ethtool_ops.cap_rss_rxnfc_adds to
 declare that they support the original (addition) semantics, reject in
 ethtool_set_rxnfc any filter which combines FLOW_RSS and a nonzero ring.
(For a ring_cookie of zero, both behaviours are equivalent.)
Set the cap bit in sfc, as it is known to support this feature.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/cc3da0844083b0e301a33092a6299e4042b65221.1731499022.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-14 19:53:41 -08:00
Rosen Penev
9dae592105 net: sfc: use ethtool string helpers
The latter is the preferred way to copy ethtool strings.

Avoids manually incrementing the pointer. Cleans up the code quite well.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20241105231855.235894-1-rosenp@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-09 09:10:37 -08:00
Dr. David Alan Gilbert
d3e80070b5 sfc: Remove more unused functions
efx_ticks_to_usecs(), efx_reconfigure_port(), efx_ptp_get_mode(), and
efx_tx_get_copy_buffer_limited() are unused.
They seem to be partially due to the later splits to Siena, but
some seem unused for longer.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/20241102151625.39535-5-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-05 17:35:11 -08:00
Dr. David Alan Gilbert
5254fdfc74 sfc: Remove unused mcdi functions
efx_mcdi_flush_rxqs(), efx_mcdi_rpc_async_quiet(),
efx_mcdi_rpc_finish_quiet(), and efx_mcdi_wol_filter_get_magic()
are unused.
I think these are fall out from the split into Siena
that happened in
commit 4d49e5cd4b ("sfc/siena: Rename functions in mcdi headers to avoid
conflicts with sfc")
and
commit d48523cb88 ("sfc: Copy shared files needed for Siena (part 2)")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/20241102151625.39535-4-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-05 17:35:11 -08:00
Dr. David Alan Gilbert
70e58249a6 sfc: Remove unused efx_mae_mport_vf
efx_mae_mport_vf() has been unused since
commit 5227adff37 ("sfc: add mport lookup based on driver's mport data")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/20241102151625.39535-3-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-05 17:35:11 -08:00
Dr. David Alan Gilbert
cc4914d904 sfc: Remove falcon deadcode
ef4_farch_dimension_resources(), ef4_nic_fix_nodesc_drop_stat(),
ef4_ticks_to_usecs() and ef4_tx_get_copy_buffer_limited() were
copied over from efx_ equivalents in 2016 but never used by
commit 5a6681e22c ("sfc: separate out SFC4000 ("Falcon") support into new
sfc-falcon driver")

EF4_MAX_FLUSH_TIME is also unused.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/20241102151625.39535-2-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-05 17:35:11 -08:00
Jakub Kicinski
9c0fc36ec4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.12-rc3).

No conflicts and no adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-10 13:13:33 -07:00
Edward Cree
b3411dbdaa sfc: add per-queue RX bytes stats
While this does add overhead to the fast path, it should be minimal
 as the cacheline should already be held for write from updating the
 queue's rx_packets stat.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-10-06 16:02:23 +01:00
Edward Cree
db3067c8aa sfc: implement per-queue TSO (hw_gso) stats
Use our existing TSO stats, which count enqueued TSO TXes.
Users may expect them to count completions, as tx-packets and
 tx-bytes do; however, these are the counters we have, and the
 qstats documentation doesn't actually specify.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-10-06 16:02:23 +01:00
Edward Cree
07e5fa5b7f sfc: implement per-queue rx drop and overrun stats
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-10-06 16:02:23 +01:00
Edward Cree
cfa63b9080 sfc: account XDP TXes in netdev base stats
When we handle a TX completion for an XDP packet, it is not counted
 in the per-TXQ netdev stats.  Record it in new internal counters,
 and include those in the device-wide total in efx_get_base_stats().

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-10-06 16:02:23 +01:00
Edward Cree
5c24de42f1 sfc: add n_rx_overlength to ethtool stats
The previous patch changed when we increment the RX queue's rx_packets
 counter, to match the semantics of netdev per-queue stats.  The
 differences between the old and new counts are scatter errors (which
 produce a WARN_ON) and this counter, which is incremented by
 efx_rx_packet__check_len() when an RX packet (which was placed in a
 single buffer by SG, i.e. n_frags == 1) has a length (from the RX
 event) which is too long to fit in the RX buffer.  If this occurs, we
 drop the packet and fire a ratelimited netif_err().
The counter previously was not reported anywhere; add it to ethtool -S
 output to ensure users still have this information.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-10-06 16:02:23 +01:00
Edward Cree
873e857950 sfc: implement basic per-queue stats
Just RX and TX packet counts and TX bytes for now.  We do not
 have per-queue RX byte counts, which causes us to fail
 stats.pkt_byte_sum selftest with "Drivers should always report
 basic keys" error.
Per-queue counts are since the last time the queue was inited
 (typically by efx_start_datapath(), on ifup or reconfiguration);
 device-wide total (efx_get_base_stats()) is since driver probe.
 This is not the same lifetime as rtnl_link_stats64, which uses
 firmware stats which count since FW (re)booted; this can cause a
 "Qstats are lower" or "RTNL stats are lower" failure in
 stats.pkt_byte_sum selftest.
Move the increment of rx_queue->rx_packets to match the semantics
 specified for netdev per-queue stats, i.e. just before handing
 the packet to XDP (if present) or the netstack (through GRO).
 This will affect the existing ethtool -S output which also
 reports these counters.
XDP TX packets are not yet counted into base_stats.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-10-06 16:02:23 +01:00
Edward Cree
65131ea8d3 sfc: remove obsolete counters from struct efx_channel
The n_rx_tobe_disc and n_rx_mcast_mismatch counters are a legacy
 from farch, and are never written in EF10 or EF100 code.  Remove
 them from the struct and from ethtool -S output, saving a bit of
 memory and avoiding user confusion.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-10-06 16:02:22 +01:00
Sebastian Andrzej Siewior
55e802468e sfc: Don't invoke xdp_do_flush() from netpoll.
Yury reported a crash in the sfc driver originated from
netpoll_send_udp(). The netconsole sends a message and then netpoll
invokes the driver's NAPI function with a budget of zero. It is
dedicated to allow driver to free TX resources, that it may have used
while sending the packet.

In the netpoll case the driver invokes xdp_do_flush() unconditionally,
leading to crash because bpf_net_context was never assigned.

Invoke xdp_do_flush() only if budget is not zero.

Fixes: 401cb7dae8 ("net: Reference bpf_redirect_info via task_struct on PREEMPT_RT.")
Reported-by: Yury Vostrikov <mon@unformed.ru>
Closes: https://lore.kernel.org/5627f6d1-5491-4462-9d75-bc0612c26a22@app.fastmail.com
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20241002125837.utOcRo6Y@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-03 15:42:00 -07:00
Jonathan Cooper
cf06766f15 sfc: Add X4 PF support
Add X4 series. Most functionality is the same as previous
EF10 nics but enough is different to warrant a new nic type struct
and revision; for example legacy interrupts and SRIOV are
not supported.

Most removed features will be re-added later as new implementations.

Signed-off-by: Jonathan Cooper <jonathan.s.cooper@amd.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/20240910153014.12803-1-jonathan.s.cooper@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-11 16:02:21 -07:00
Gal Pressman
4c00bb4c51 sfc/siena: Remove setting of RX software timestamp
The responsibility for reporting of RX software timestamp has moved to
the core layer (see __ethtool_get_ts_info()), remove usage from the
device drivers.

Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/20240906144632.404651-14-gal@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-09 17:44:41 -07:00
Gal Pressman
9d02e6c951 sfc: Remove setting of RX software timestamp
The responsibility for reporting of RX software timestamp has moved to
the core layer (see __ethtool_get_ts_info()), remove usage from the
device drivers.

Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://patch.msgid.link/20240906144632.404651-13-gal@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-09 17:44:41 -07:00
Edward Cree
32b81e4f0e sfc: siena: rip out rss-context dead code
Siena hardware does not support custom RSS contexts, but when the
 driver was forked from sfc.ko, some of the plumbing for them was
 copied across from the common code.  Actually trying to use them
 would lead to EOPNOTSUPP as the relevant efx_nic_type methods were
 not populated.
Remove this dead code from the Siena driver.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240904181156.1993666-1-edward.cree@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-06 18:22:17 -07:00
Chen Ni
be8a17fe99 sfc: convert comma to semicolon
Replace comma between expressions with semicolons.

Using a ',' in place of a ';' can have unintended side effects.
Although that is not the case here, it is seems best to use ';'
unless ',' is intended.

Found by inspection.
No functional change intended.
Compile tested only.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20240904084951.1353518-1-nichen@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-06 18:06:40 -07:00
Chen Ni
96487cb211 sfc/siena: Convert comma to semicolon
Replace comma between expressions with semicolons.

Using a ',' in place of a ';' can have unintended side effects.
Although that is not the case here, it is seems best to use ';'
unless ',' is intended.

Found by inspection.
No functional change intended.
Compile tested only.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20240904084034.1353404-1-nichen@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-06 18:06:30 -07:00
Alexander Lobakin
00d066a4d4 netdev_features: convert NETIF_F_LLTX to dev->lltx
NETIF_F_LLTX can't be changed via Ethtool and is not a feature,
rather an attribute, very similar to IFF_NO_QUEUE (and hot).
Free one netdev_features_t bit and make it a "hot" private flag.

Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-03 11:36:43 +02:00
Shen Lichuan
74ce94ac38 sfc: Convert to use ERR_CAST()
As opposed to open-code, using the ERR_CAST macro clearly indicates that
this is a pointer to an error value and a type conversion was performed.

Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20240829021253.3066-1-shenlichuan@vivo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-30 11:10:02 -07:00
Jakub Kicinski
ec6e57beaf ethtool: rss: don't report key if device doesn't support it
marvell/otx2 and mvpp2 do not support setting different
keys for different RSS contexts. Contexts have separate
indirection tables but key is shared with all other contexts.
This is likely fine, indirection table is the most important
piece.

Don't report the key-related parameters from such drivers.
This prevents driver-errors, e.g. otx2 always writes
the main key, even when user asks to change per-context key.
The second reason is that without this change tracking
the keys by the core gets complicated. Even if the driver
correctly reject setting key with rss_context != 0,
change of the main key would have to be reflected in
the XArray for all additional contexts.

Since the additional contexts don't have their own keys
not including the attributes (in Netlink speak) seems
intuitive. ethtool CLI seems to deal with it just fine.

Having to set the flag in majority of the drivers is
a bit tedious but not reporting the key is a safer
default.

Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-12 14:16:24 +01:00
Jakub Kicinski
fb770fe758 eth: remove .cap_rss_ctx_supported from updated drivers
Remove .cap_rss_ctx_supported from drivers which moved to the new API.
This makes it easy to grep for drivers which still need to be converted.

Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-12 14:16:24 +01:00
Jakub Kicinski
30b3560050 Merge branch 'net-make-timestamping-selectable'
First part of "net: Make timestamping selectable" from Kory Maincent.
Change the driver-facing type already to lower rebasing pain.

Link: https://lore.kernel.org/20240709-feature_ptp_netnext-v17-0-b5317f50df2a@bootlin.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-15 08:02:30 -07:00
Kory Maincent
2111375b85 net: Add struct kernel_ethtool_ts_info
In prevision to add new UAPI for hwtstamp we will be limited to the struct
ethtool_ts_info that is currently passed in fixed binary format through the
ETHTOOL_GET_TS_INFO ethtool ioctl. It would be good if new kernel code
already started operating on an extensible kernel variant of that
structure, similar in concept to struct kernel_hwtstamp_config vs struct
hwtstamp_config.

Since struct ethtool_ts_info is in include/uapi/linux/ethtool.h, here
we introduce the kernel-only structure in include/linux/ethtool.h.
The manual copy is then made in the function called by ETHTOOL_GET_TS_INFO.

Acked-by: Shannon Nelson <shannon.nelson@amd.com>
Acked-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20240709-feature_ptp_netnext-v17-6-b5317f50df2a@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-15 08:02:26 -07:00
Easwar Hariharan
ba88b47816 sfc: falcon: Make I2C terminology more inclusive
I2C v7, SMBus 3.2, and I3C 1.1.1 specifications have replaced "master/slave"
with more appropriate terms. Inspired by Wolfram's series to fix drivers/i2c/,
fix the terminology for users of I2C_ALGOBIT bitbanging interface, now that
the approved verbiage exists in the specification.

Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Link: https://patch.msgid.link/20240711052734.1273652-5-eahariha@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 16:02:35 -07:00
Edward Cree
b859316e82 sfc: remove get_rxfh_context dead code
The core now always satisfies 'ethtool -x context nonzero' from its own
 tracking, so our lookup code for that case is never called.  Remove it.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/b426fcc416dedc8f203e52eebef6891eccebe4c1.1719502240.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-06-28 18:53:21 -07:00
Edward Cree
a9ee8d4a97 sfc: use new rxfh_context API
The core is now responsible for allocating IDs and a memory region for
 us to store our state (struct efx_rss_context_priv), so we no longer
 need efx_alloc_rss_context_entry() and friends.
Since the contexts are now maintained by the core, use the core's lock
 (net_dev->ethtool->rss_lock), rather than our own mutex (efx->rss_lock),
 to serialise access against changes; and remove the now-unused
 efx->rss_lock from struct efx_nic.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/150274740ea8cc137fef5502541ce573d32fb319.1719502240.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-06-28 18:53:21 -07:00
Asbjørn Sloth Tønnesen
2ede54f878 sfc: use flow_rule_is_supp_enc_control_flags()
Change the existing check for unsupported encapsulation control flags,
to use the new helper flow_rule_is_supp_enc_control_flags().

No functional change, only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Link: https://lore.kernel.org/r/20240609173358.193178-3-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-06-12 17:56:00 -07:00
Eric Dumazet
1eb2cded45 net: annotate writes on dev->mtu from ndo_change_mtu()
Simon reported that ndo_change_mtu() methods were never
updated to use WRITE_ONCE(dev->mtu, new_mtu) as hinted
in commit 501a90c945 ("inet: protect against too small
mtu values.")

We read dev->mtu without holding RTNL in many places,
with READ_ONCE() annotations.

It is time to take care of ndo_change_mtu() methods
to use corresponding WRITE_ONCE()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Simon Horman <horms@kernel.org>
Closes: https://lore.kernel.org/netdev/20240505144608.GB67882@kernel.org/
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20240506102812.3025432-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-07 16:19:14 -07:00
Asbjørn Sloth Tønnesen
bb534830a7 sfc: use flow_rule_is_supp_control_flags()
Change the check for unsupported control flags, to use the new helper
flow_rule_is_supp_control_flags().

Since the helper was based on sfc, then nothing really changes.

Compile-tested, and compiled objects are identical.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20240417140712.100905-1-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-18 17:04:19 -07:00
Eric Dumazet
490a79faf9 net: introduce include/net/rps.h
Move RPS related structures and helpers from include/linux/netdevice.h
and include/net/sock.h to a new include file.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-18-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
80bfab79b8 net: adopt skb_network_offset() and similar helpers
This is a cleanup patch, making code a bit more concise.

1) Use skb_network_offset(skb) in place of
       (skb_network_header(skb) - skb->data)

2) Use -skb_network_offset(skb) in place of
       (skb->data - skb_network_header(skb))

3) Use skb_transport_offset(skb) in place of
       (skb_transport_header(skb) - skb->data)

4) Use skb_inner_transport_offset(skb) in place of
       (skb_inner_transport_header(skb) - skb->data)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com> # for sfc
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-04 08:47:06 +00:00
Eric Dumazet
328771deab net: remove stale mentions of dev_base_lock in comments
Change comments incorrectly mentioning dev_base_lock.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-14 11:20:13 +00:00
Jakub Kicinski
e63c1822ac Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/broadcom/bnxt/bnxt.c
  e009b2efb7 ("bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()")
  0f2b214779 ("bnxt_en: Fix compile error without CONFIG_RFS_ACCEL")
https://lore.kernel.org/all/20240105115509.225aa8a2@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-04 18:06:46 -08:00
Zhipeng Lu
d5a306aedb sfc: fix a double-free bug in efx_probe_filters
In efx_probe_filters, the channel->rps_flow_id is freed in a
efx_for_each_channel marco  when success equals to 0.
However, after the following call chain:

ef100_net_open
  |-> efx_probe_filters
  |-> ef100_net_stop
        |-> efx_remove_filters

The channel->rps_flow_id is freed again in the efx_for_each_channel of
efx_remove_filters, triggering a double-free bug.

Fixes: a9dc3d5612 ("sfc_ef100: RX filter table management and related gubbins")
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Link: https://lore.kernel.org/r/20231225112915.3544581-1-alexious@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-02 16:08:11 -08:00
Ahmed Zaki
dcd8dbf9e7 net: ethtool: get rid of get/set_rxfh_context functions
Add the RSS context parameters to struct ethtool_rxfh_param and use the
get/set_rxfh to handle the RSS contexts as well.

This is part 2/2 of the fix suggested in [1]:

 - Add a rss_context member to the argument struct and a capability
   like cap_link_lanes_supported to indicate whether driver supports
   rss contexts, then you can remove *et_rxfh_context functions,
   and instead call *et_rxfh() with a non-zero rss_context.

Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1]
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Tony Nguyen <anthony.l.nguyen@intel.com>
CC: Marcin Wojtas <mw@semihalf.com>
CC: Russell King <linux@armlinux.org.uk>
CC: Sunil Goutham <sgoutham@marvell.com>
CC: Geetha sowjanya <gakula@marvell.com>
CC: Subbaraya Sundeep <sbhatta@marvell.com>
CC: hariprasad <hkelam@marvell.com>
CC: Saeed Mahameed <saeedm@nvidia.com>
CC: Leon Romanovsky <leon@kernel.org>
CC: Edward Cree <ecree.xilinx@gmail.com>
CC: Martin Habets <habetsm.xilinx@gmail.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231213003321.605376-3-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-13 22:07:16 -08:00
Ahmed Zaki
fb6e30a725 net: ethtool: pass a pointer to parameters to get/set_rxfh ethtool ops
The get/set_rxfh ethtool ops currently takes the rxfh (RSS) parameters
as direct function arguments. This will force us to change the API (and
all drivers' functions) every time some new parameters are added.

This is part 1/2 of the fix, as suggested in [1]:

- First simplify the code by always providing a pointer to all params
   (indir, key and func); the fact that some of them may be NULL seems
   like a weird historic thing or a premature optimization.
   It will simplify the drivers if all pointers are always present.

 - Then make the functions take a dev pointer, and a pointer to a
   single struct wrapping all arguments. The set_* should also take
   an extack.

Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1]
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Suggested-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231213003321.605376-2-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-13 22:07:16 -08:00
Alex Austin
d82afc800c sfc-siena: Implement ndo_hwtstamp_(get|set)
Update efx->ptp_data to use kernel_hwtstamp_config and implement
ndo_hwtstamp_(get|set). Remove SIOCGHWTSTAMP and SIOCSHWTSTAMP from
efx_ioctl.

Signed-off-by: Alex Austin <alex.austin@amd.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20231130135826.19018-3-alex.austin@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05 07:45:43 -08:00