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Jerome provided the information that also the GXL internal PHY doesn't
support MMD register access and EEE. MMD reads return 0xffff, what
results in e.g. completely wrong ethtool --show-eee output.
Therefore use the MMD dummy stubs.
Fixes: d853d145ea3e ("net: phy: add an option to disable EEE advertisement")
Suggested-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/84432fe4-0be4-bc82-4e5c-557206b40f56@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In zynqmp platforms where firmware supports dynamic SGMII configuration
but has other non-SGMII ethernet devices, it fails them with no packets
received at the RX interface.
To fix this behaviour perform SGMII dynamic configuration only
for the SGMII phy interface.
Fixes: 32cee7818111 ("net: macb: Add zynqmp SGMII dynamic configuration support")
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reported-by: Michal Simek <michal.simek@amd.com>
Tested-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1675340779-27499-1-git-send-email-radhey.shyam.pandey@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Moshe Shemesh says:
====================
devlink: Move devlink dev code to a separate file
This patchset is moving code from the file leftover.c to new file dev.c.
About 1.3K lines are moved by this patchset covering most of the devlink
dev object callbacks and functionality: reload, eswitch, info, flash and
selftest.
====================
Link: https://lore.kernel.org/r/1675349226-284034-1-git-send-email-moshe@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move devlink dev selftest callbacks and related code from leftover.c to
file dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As all users of the struct devlink_info_req are already in dev.c, move
this struct from devl_internal.c to be local in dev.c.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move devlink dev flash callbacks, helpers and other related code from
leftover.c to dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move devlink dev info callbacks, related drivers helpers functions and
other related code from leftover.c to dev.c. No functional change in
this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move devlink dev eswitch callbacks and related code from leftover.c to
file dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move devlink dev reload callback and related code from leftover.c to
file dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move devlink dev get and dump callbacks and related dev code to new file
dev.c. This file shall include all callbacks that are specific on
devlink dev object.
No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now that commit 028fb19c6ba7 ("netlink: provide an ability to set
default extack message") provides a weak function that doesn't override
an existing extack message provided by the driver, it makes sense to use
it also for LAG and HSR offloading, not just for bridge offloading.
Also consistently put the message string on a separate line, to reduce
line length from 92 to 84 characters.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230202140354.3158129-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since commit ff9fb72bc077 ("debugfs: return error values,
not NULL") changed return value of debugfs_rename() in
error cases from %NULL to %ERR_PTR(-ERROR), we should
also check error values instead of NULL.
Fixes: ff9fb72bc077 ("debugfs: return error values, not NULL")
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20230202093256.32458-1-zhengqi.arch@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull block fixes from Jens Axboe:
"A bit bigger than I'd like at this point, but mostly a bunch of little
fixes. In detail:
- NVMe pull request via Christoph:
- Fix a missing queue put in nvmet_fc_ls_create_association
(Amit Engel)
- Clear queue pointers on tag_set initialization failure
(Maurizio Lombardi)
- Use workqueue dedicated to authentication (Shin'ichiro
Kawasaki)
- Fix for an overflow in ublk (Liu)
- Fix for leaking a queue reference in block cgroups (Ming)
- Fix for a use-after-free in BFQ (Yu)"
* tag 'block-6.2-2023-02-03' of git://git.kernel.dk/linux:
blk-cgroup: don't update io stat for root cgroup
nvme-auth: use workqueue dedicated to authentication
nvme: clear the request_queue pointers on failure in nvme_alloc_io_tag_set
nvme: clear the request_queue pointers on failure in nvme_alloc_admin_tag_set
nvme-fc: fix a missing queue put in nvmet_fc_ls_create_association
block: Fix the blk_mq_destroy_queue() documentation
block: ublk: extending queue_size to fix overflow
block, bfq: fix uaf for bfqq in bic_set_bfqq()
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Pull ceph fix from Ilya Dryomov:
"A safeguard to prevent the kernel client from further damaging the
filesystem after running into a case of an invalid snap trace.
The root cause of this metadata corruption is still being investigated
but it appears to be stemming from the MDS. As such, this is the best
we can do for now"
* tag 'ceph-for-6.2-rc7' of https://github.com/ceph/ceph-client:
ceph: blocklist the kclient when receiving corrupted snap trace
ceph: move mount state enum to super.h
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
- handle potential mremap() failure gracefully
- don't reject EFI memory attributes table version 2
* tag 'efi-fixes-for-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: fix potential NULL deref in efi_mem_reserve_persistent
efi: Accept version 2 of memory attributes table
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A build fix to avoid static branches in cpu_relax(), which greatly
inflates the jump tables and breaks at least
CONFIG_CC_OPTIMIZE_FOR_SIZE=y.
- A fix for a kernel panic when probing impossible instruction
positions.
- A fix to disable unwind tables, which are enabled by default for
GCC-13 and result in unhandled relocations in modules.
* tag 'riscv-for-linus-6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: disable generation of unwind tables
riscv: kprobe: Fixup kernel panic when probing an illegal position
riscv: Fix build with CONFIG_CC_OPTIMIZE_FOR_SIZE=y
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Pull drm fixes from Dave Airlie:
"A few more fixes this week, a bit more spread out though.
We have a bunch of nouveau regression and stabilisation fixes, along
with usual amdgpu, and i915. Otherwise just some minor misc ones:
dma-fence:
- fix signaling bit for private fences
panel:
- boe-tv101wum-nl6 disable fix
nouveau:
- gm20b acr regression fix
- tu102 scrub status fix
- tu102 wait for firmware fix
i915:
- Fixes for potential use-after-free and double-free
- GuC locking and refcount fixes
- Display's reference clock value fix
amdgpu:
- GC11 fixes
- DCN 3.1.4 fixes
- NBIO 4.3 fix
- DCN 3.2 fixes
- Properly handle additional cases where DCN is not supported
- SMU13 fixes
vc4:
- fix CEC adapter names
ssd130x:
- fix display init regression"
* tag 'drm-fixes-2023-02-03' of git://anongit.freedesktop.org/drm/drm: (23 commits)
drm/amd/display: Properly handle additional cases where DCN is not supported
drm/amdgpu: Enable vclk dclk node for gc11.0.3
drm/amd: Fix initialization for nbio 4.3.0
drm/amdgpu: enable HDP SD for gfx 11.0.3
drm/amd/pm: drop unneeded dpm features disablement for SMU 13.0.4/11
drm/amd/display: Reset DMUB mailbox SW state after HW reset
drm/amd/display: Unassign does_plane_fit_in_mall function from dcn3.2
drm/amd/display: Adjust downscaling limits for dcn314
drm/amd/display: Add missing brackets in calculation
drm/amdgpu: update wave data type to 3 for gfx11
drm/panel: boe-tv101wum-nl6: Ensure DSI writes succeed during disable
drm/nouveau/acr/gm20b: regression fixes
drm/nouveau/fb/tu102-: fix register used to determine scrub status
drm/nouveau/devinit/tu102-: wait for GFW_BOOT_PROGRESS == COMPLETED
drm/i915/adlp: Fix typo for reference clock
drm/i915: Fix potential bit_17 double-free
drm/i915: Fix up locking around dumping requests lists
drm/i915: Fix request ref counting during error capture & debugfs dump
drm/i915/guc: Fix locking when searching for a hung request
drm/i915: Avoid potential vm use-after-free
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"25 hotfixes, mainly for MM. 13 are cc:stable"
* tag 'mm-hotfixes-stable-2023-02-02-19-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (26 commits)
mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()
Kconfig.debug: fix the help description in SCHED_DEBUG
mm/swapfile: add cond_resched() in get_swap_pages()
mm: use stack_depot_early_init for kmemleak
Squashfs: fix handling and sanity checking of xattr_ids count
sh: define RUNTIME_DISCARD_EXIT
highmem: round down the address passed to kunmap_flush_on_unmap()
migrate: hugetlb: check for hugetlb shared PMD in node migration
mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps
mm/MADV_COLLAPSE: catch !none !huge !bad pmd lookups
Revert "mm: kmemleak: alloc gray object for reserved region with direct map"
freevxfs: Kconfig: fix spelling
maple_tree: should get pivots boundary by type
.mailmap: update e-mail address for Eugen Hristev
mm, mremap: fix mremap() expanding for vma's with vm_ops->close()
squashfs: harden sanity check in squashfs_read_xattr_id_table
ia64: fix build error due to switch case label appearing next to declaration
mm: multi-gen LRU: fix crash during cgroup migration
Revert "mm: add nodes= arg to memory.reclaim"
zsmalloc: fix a race with deferred_handles storing
...
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Call ice_unload() and ice_load() in driver reinit flow.
Block reinit when switchdev, ADQ or SRIOV is active. In reload path we
don't want to rebuild all features. Ask user to remove them instead of
quitely removing it in reload path.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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ice_vsi_cfg() is called from different contexts:
1) VSI exsist in HW, but it is reconfigured, because of changing queues
for example -> update instead of init should be used
2) VSI doesn't exsist, because rest has happened -> init command should
be sent
To support both cases pass boolean value which will store information
what type of command has to be sent to HW.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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In deconfig VSI shouldn't be deleted from hw.
Rewrite VSI delete function to reflect that sometimes it is only needed
to remove VSI from hw without freeing the memory:
ice_vsi_delete() -> delete from HW and free memory
ice_vsi_delete_from_hw() -> delete only from HW
Value returned from ice_vsi_free() is never used. Change return type to
void.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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In driver reload path the netdev isn't removed, but VSI is. Remove
filters on netdev right after removing them on VSI.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Part of code from probe can be reused in reload flow. Move this code to
separate function. Create unroll functions for each part of
initialization, like: ice_init_dev() and ice_deinit_dev(). It
simplifies unrolling and can be used in remove flow.
Avoid freeing port info as it could be reused in reload path.
Will be freed in remove path since is allocated via devm_kzalloc().
Also clean the remove path to reflect the init steps.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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When allocating the ICE_VSI_CTRL, the allocated struct ice_vsi pointer is
stored into the PF's pf->vsi array at a fixed location. This was
historically done on the basis that it could provide an O(1) lookup for the
special control VSI.
Since we store the ctrl_vsi_idx, we already have O(1) lookup regardless of
where in the array we store this VSI.
Simplify the logic in ice_vsi_alloc by using the same method of storing the
control VSI as other types of VSIs.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Main goal is to reuse the same functions in VSI config and rebuild
paths.
To do this split ice_vsi_setup into smaller pieces and reuse it during
rebuild.
ice_vsi_alloc() should only alloc memory, not set the default values
for VSI.
Move setting defaults to separate function. This will allow config of
already allocated VSI, for example in reload path.
The path is mostly moving code around without introducing new
functionality. Functions ice_vsi_cfg() and ice_vsi_decfg() were
added, but they are using code that already exist.
Use flag to pass information about VSI initialization during rebuild
instead of using boolean value.
Co-developed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Do few small cleanups:
1) Rename the function to reflect that it doesn't configure all things
related to VSI. ice_vsi_cfg_lan() better fits to what function is doing.
ice_vsi_cfg() can be use to name function that will configure whole VSI.
2) Remove unused ethtype field from VSI. There is no need to set
ethtype here, because it is never used.
3) Remove unnecessary check for ICE_VSI_CHNL. There is check for
ICE_VSI_CHNL in ice_vsi_get_qs, so there is no need to check it before
calling the function.
4) Simplify ice_vsi_alloc() call. There is no need to check the type of
VSI before calling ice_vsi_alloc(). For ICE_VSI_CHNL vf is always NULL
(ice_vsi_setup() is called with vf=NULL).
For ICE_VSI_VF or ICE_VSI_CTRL ch is always NULL and for other VSI types
ch and vf are always NULL.
5) Remove unnecessary call to ice_vsi_dis_irq(). ice_vsi_dis_irq() will
be called in ice_vsi_close() flow (ice_vsi_close() -> ice_vsi_down() ->
ice_vsi_dis_irq()). Remove unnecessary call.
6) Don't remove specific filters in release. All hw filters are removed
in ice_fltr_remove_alli(), which is always called in VSI release flow.
There is no need to remove only ethertype filters before calling
ice_fltr_remove_all().
7) Rename ice_vsi_clear() to ice_vsi_free(). As ice_vsi_clear() only
free memory allocated in ice_vsi_alloc() rename it to ice_vsi_free()
which better shows what function is doing.
8) Free coalesce param in rebuild. There is potential memory leak if
configuration of VSI lan fails. Free coalesce to avoid it.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Use xa_array instead of deprecated ida to alloc id for RDMA aux driver.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Simplify probe flow by moving all RDMA related code to ice_init_rdma().
Unroll irq allocation if RDMA initialization fails.
Implement ice_deinit_rdma() and use it in remove flow.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Acked-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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BPF kernel <-> kernel API stability has been discussed at length over
the last several weeks and months. Now that we've largely aligned over
kfuncs being the way forward, and BPF helpers being considered
functionally frozen, it's time to document the expectations for kfunc
lifecycles and stability so that everyone (BPF users, kfunc developers,
and maintainers) are all aligned, and have a crystal-clear understanding
of the expectations surrounding kfuncs.
To do that, this patch adds that documentation to the main kfuncs
documentation page via a new 'kfunc lifecycle expectations' section. The
patch describes how decisions are made in the kernel regarding whether
to include, keep, deprecate, or change / remove a kfunc. As described
very overtly in the patch itself, but likely worth highlighting here:
"kfunc stability" does not mean, nor ever will mean, "BPF APIs may block
development elsewhere in the kernel".
Rather, the intention and expectation is for kfuncs to be treated like
EXPORT_SYMBOL_GPL symbols in the kernel. The goal is for kfuncs to be a
safe and valuable option for maintainers and kfunc developers to extend
the kernel, without tying anyone's hands, or imposing any kind of
restrictions on maintainers in the same way that UAPI changes do.
In addition to the 'kfunc lifecycle expectations' section, this patch
also adds documentation for a new KF_DEPRECATED kfunc flag which kfunc
authors or maintainers can choose to add to kfuncs if and when they
decide to deprecate them. Note that as described in the patch itself, a
kfunc need not be deprecated before being changed or removed -- this
flag is simply provided as an available deprecation mechanism for those
that want to provide a deprecation story / timeline to their users.
When necessary, kfuncs may be changed or removed to accommodate changes
elsewhere in the kernel without any deprecation at all.
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Co-developed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/r/20230203155727.793518-2-void@manifault.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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When iterating on a linked list, a result of memremap is dereferenced
without checking it for NULL.
This patch adds a check that falls back on allocating a new page in
case memremap doesn't succeed.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 18df7577adae ("efi/memreserve: deal with memreserve entries in unmapped memory")
Signed-off-by: Anton Gusev <aagusev@ispras.ru>
[ardb: return -ENOMEM instead of breaking out of the loop]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Frank Sae says:
====================
net: add dts for yt8521 and yt8531s, add driver for yt8531
Add dts for yt8521 and yt8531s, add driver for yt8531.
These patches have been verified on our AM335x platform (motherboard)
which has one integrated yt8521 and one RGMII interface.
It can connect to daughter boards like yt8531s or yt8531 board.
v5:
- change the compatible of yaml
- change the maintainers of yaml from "frank sae" to "Frank Sae"
v4:
- change default tx delay from 150ps to 1950ps
- add compatible for yaml
v3:
- change default rx delay from 1900ps to 1950ps
- moved ytphy_rgmii_clk_delay_config_with_lock from yt8521's patch to yt8531's patch
- removed unnecessary checks of phydev->attached_dev->dev_addr
v2:
- split BIT macro as one patch
- split "dts for yt8521/yt8531s ... " patch as two patches
- use standard rx-internal-delay-ps and tx-internal-delay-ps, removed motorcomm,sds-tx-amplitude
- removed ytphy_parse_dt, ytphy_probe_helper and ytphy_config_init_helper
- not store dts arg to yt8521_priv
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a driver for the motorcomm yt8531 gigabit ethernet phy. We have
verified the driver on AM335x platform with yt8531 board. On the
board, yt8531 gigabit ethernet phy works in utp mode, RGMII
interface, supports 1000M/100M/10M speeds, and wol(magic package).
Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add dts support for Motorcomm yt8531s gigabit ethernet phy.
Change yt8521_probe to support clk config of yt8531s. Becase
yt8521_probe does the things which yt8531s is needed, so
removed yt8531s function.
This patch has been verified on AM335x platform with yt8531s board.
Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add dts support for Motorcomm yt8521 gigabit ethernet phy.
Add ytphy_rgmii_clk_delay_config function to support dst config for
the delay of rgmii clk. This funciont is common for yt8521, yt8531s
and yt8531.
This patch has been verified on AM335x platform.
Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add BIT macro for Motorcomm yt8521/yt8531 gigabit ethernet phy.
This is a preparatory patch. Add BIT macro for 0xA012 reg, and
supplement for 0xA001 and 0xA003 reg. These will be used to support dts.
Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a YAML binding document for the Motorcomm yt8xxx Ethernet phy.
Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Buslov says:
====================
net: Allow offloading of UDP NEW connections via act_ct
Currently only bidirectional established connections can be offloaded
via act_ct. Such approach allows to hardcode a lot of assumptions into
act_ct, flow_table and flow_offload intermediate layer codes. In order
to enabled offloading of unidirectional UDP NEW connections start with
incrementally changing the following assumptions:
- Drivers assume that only established connections are offloaded and
don't support updating existing connections. Extract ctinfo from meta
action cookie and refuse offloading of new connections in the drivers.
- Fix flow_table offload fixup algorithm to calculate flow timeout
according to current connection state instead of hardcoded
"established" value.
- Add new flow_table flow flag that designates bidirectional connections
instead of assuming it and hardcoding hardware offload of every flow
in both directions.
- Add new flow_table flow flag that designates connections that are
offloaded to hardware as "established" instead of assuming it. This
allows some optimizations in act_ct and prevents spamming the
flow_table workqueue with redundant tasks.
With all the necessary infrastructure in place modify act_ct to offload
UDP NEW as unidirectional connection. Pass reply direction traffic to CT
and promote connection to bidirectional when UDP connection state
changes to "assured". Rely on refresh mechanism to propagate connection
state change to supporting drivers.
Note that early drop algorithm that is designed to free up some space in
connection tracking table when it becomes full (by randomly deleting up
to 5% of non-established connections) currently ignores connections
marked as "offloaded". Now, with UDP NEW connections becoming
"offloaded" it could allow malicious user to perform DoS attack by
filling the table with non-droppable UDP NEW connections by sending just
one packet in single direction. To prevent such scenario change early
drop algorithm to also consider "offloaded" connections for deletion.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Both synchronous early drop algorithm and asynchronous gc worker completely
ignore connections with IPS_OFFLOAD_BIT status bit set. With new
functionality that enabled UDP NEW connection offload in action CT
malicious user can flood the conntrack table with offloaded UDP connections
by just sending a single packet per 5tuple because such connections can no
longer be deleted by early drop algorithm.
To mitigate the issue allow both early drop and gc to consider offloaded
UDP connections for deletion.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Modify the offload algorithm of UDP connections to the following:
- Offload NEW connection as unidirectional.
- When connection state changes to ESTABLISHED also update the hardware
flow. However, in order to prevent act_ct from spamming offload add wq for
every packet coming in reply direction in this state verify whether
connection has already been updated to ESTABLISHED in the drivers. If that
it the case, then skip flow_table and let conntrack handle such packets
which will also allow conntrack to potentially promote the connection to
ASSURED.
- When connection state changes to ASSURED set the flow_table flow
NF_FLOW_HW_BIDIRECTIONAL flag which will cause refresh mechanism to offload
the reply direction.
All other protocols have their offload algorithm preserved and are always
offloaded as bidirectional.
Note that this change tries to minimize the load on flow_table add
workqueue. First, it tracks the last ctinfo that was offloaded by using new
flow 'NF_FLOW_HW_ESTABLISHED' flag and doesn't schedule the refresh for
reply direction packets when the offloads have already been updated with
current ctinfo. Second, when 'add' task executes on workqueue it always
update the offload with current flow state (by checking 'bidirectional'
flow flag and obtaining actual ctinfo/cookie through meta action instead of
caching any of these from the moment of scheduling the 'add' work)
preventing the need from scheduling more updates if state changed
concurrently while the 'add' work was pending on workqueue.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently tcf_ct_flow_table_fill_actions() function assumes that only
established connections can be offloaded and always sets ctinfo to either
IP_CT_ESTABLISHED or IP_CT_ESTABLISHED_REPLY strictly based on direction
without checking actual connection state. To enable UDP NEW connection
offload set the ctinfo, metadata cookie and NF_FLOW_HW_ESTABLISHED
flow_offload flags bit based on ct->status value.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Modify flow table offload to cache the last ct info status that was passed
to the driver offload callbacks by extending enum nf_flow_flags with new
"NF_FLOW_HW_ESTABLISHED" flag. Set the flag if ctinfo was 'established'
during last act_ct meta actions fill call. This infrastructure change is
necessary to optimize promoting of UDP connections from 'new' to
'established' in following patches in this series.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Modify flow table offload to support unidirectional connections by
extending enum nf_flow_flags with new "NF_FLOW_HW_BIDIRECTIONAL" flag. Only
offload reply direction when the flag is set. This infrastructure change is
necessary to support offloading UDP NEW connections in original direction
in following patches in series.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently flow_offload_fixup_ct() function assumes that only replied UDP
connections can be offloaded and hardcodes UDP_CT_REPLIED timeout value. To
enable UDP NEW connection offload in following patches extract the actual
connections state from ct->status and set the timeout according to it.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to offload connections in other states besides "established" the
driver offload callbacks need to have access to connection conntrack info.
Flow offload intermediate representation data structure already contains
that data encoded in 'cookie' field, so just reuse it in the drivers.
Reject offloading IP_CT_NEW connections for now by returning an error in
relevant driver callbacks based on value of ctinfo. Support for offloading
such connections will need to be added to the drivers afterwards.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Enable debugfs for vcap for lan966x. This will allow to print all the
entries in the VCAP and also the port information regarding which keys
are configured.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Yoshihiro Shimoda says:
====================
net: renesas: rswitch: Modify initialization for SERDES and PHY
- My platform has the 88x2110.
- The MACTYPE setting of strap pin on the platform is SXGMII.
- However, we realized that the SoC cannot communicate the PHY with SXGMII
because of mismatching hardware specification.
- We have a lot of boards which mismatch the MACTYPE setting.
So, I would like to change the MACTYPE as SGMII by software for the platform.
The patch [1/5] sets phydev->host_interfaces by phylink for Marvell PHY
driver (marvell10g) to initialize the MACTYPE.
- The patch [1/5] siplifies the rswitch driver.
- The patch [2/5] converts to phy_device from phylink.
- The patch [3/5] sets phydev->host_interfaces from this driver without
any new functions of phylib.
- The patch [4/5] adds phy_power_on() calling to initialize the Ethernet
SERDES PHY driver (r8a779f0-eth-serdes) for each channel.
- The patch [5/5] adds "max-speed" handling.
Changes from v4:
https://lore.kernel.org/all/20230127142621.1761278-1-yoshihiro.shimoda.uh@renesas.com/
- No modification of phylink API.
- Convert to phylib instead of phylink.
- Add "max-speed" handling.
Changes from v3:
https://lore.kernel.org/all/20230127014812.1656340-1-yoshihiro.shimoda.uh@renesas.com/
- Keep a pointer of "port" and more simplify the code.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The previous code set the speed by the interface mode of PHY.
Also this hardware has a restriction which cannot change the speed
at runtime. To use other speed, add "max-speed" handling to set
each port's speed if needed.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some Ethernet PHYs (like marvell10g) will decide the host interface
mode by the media-side speed. So, the rswitch driver needs to
initialize one of the Ethernet SERDES (r8a779f0-eth-serdes) ports
after linked the Ethernet PHY up. The r8a779f0-eth-serdes driver has
.init() for initializing all ports and .power_on() for initializing
each port. So, add phy_power_{on,off} calling for it.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set phydev->host_interfaces before calling of_phy_connect() to
configure the PHY with the information of host_interfaces.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Intended to set phy_device->host_interfaces by phylink in the future.
But there is difficult to implement phylink properly, especially
supporting the in-band mode on this driver because extra initialization
is needed after linked the ethernet PHY up. So, convert to phy_device
from phylink.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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