| Age | Commit message (Collapse) | Author |
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Set squota incompat bit before committing the transaction that enables
the feature.
With the config CONFIG_BTRFS_ASSERT enabled, an assertion
failure occurs regarding the simple quota feature.
[5.596534] assertion failed: btrfs_fs_incompat(fs_info, SIMPLE_QUOTA), in fs/btrfs/qgroup.c:365
[5.597098] ------------[ cut here ]------------
[5.597371] kernel BUG at fs/btrfs/qgroup.c:365!
[5.597946] CPU: 1 UID: 0 PID: 268 Comm: mount Not tainted 6.13.0-rc2-00031-gf92f4749861b #146
[5.598450] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[5.599008] RIP: 0010:btrfs_read_qgroup_config+0x74d/0x7a0
[5.604303] <TASK>
[5.605230] ? btrfs_read_qgroup_config+0x74d/0x7a0
[5.605538] ? exc_invalid_op+0x56/0x70
[5.605775] ? btrfs_read_qgroup_config+0x74d/0x7a0
[5.606066] ? asm_exc_invalid_op+0x1f/0x30
[5.606441] ? btrfs_read_qgroup_config+0x74d/0x7a0
[5.606741] ? btrfs_read_qgroup_config+0x74d/0x7a0
[5.607038] ? try_to_wake_up+0x317/0x760
[5.607286] open_ctree+0xd9c/0x1710
[5.607509] btrfs_get_tree+0x58a/0x7e0
[5.608002] vfs_get_tree+0x2e/0x100
[5.608224] fc_mount+0x16/0x60
[5.608420] btrfs_get_tree+0x2f8/0x7e0
[5.608897] vfs_get_tree+0x2e/0x100
[5.609121] path_mount+0x4c8/0xbc0
[5.609538] __x64_sys_mount+0x10d/0x150
The issue can be easily reproduced using the following reproducer:
root@q:linux# cat repro.sh
set -e
mkfs.btrfs -q -f /dev/sdb
mount /dev/sdb /mnt/btrfs
btrfs quota enable -s /mnt/btrfs
umount /mnt/btrfs
mount /dev/sdb /mnt/btrfs
The issue is that when enabling quotas, at btrfs_quota_enable(), we set
BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE at fs_info->qgroup_flags and persist
it in the quota root in the item with the key BTRFS_QGROUP_STATUS_KEY, but
we only set the incompat bit BTRFS_FEATURE_INCOMPAT_SIMPLE_QUOTA after we
commit the transaction used to enable simple quotas.
This means that if after that transaction commit we unmount the filesystem
without starting and committing any other transaction, or we have a power
failure, the next time we mount the filesystem we will find the flag
BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE set in the item with the key
BTRFS_QGROUP_STATUS_KEY but we will not find the incompat bit
BTRFS_FEATURE_INCOMPAT_SIMPLE_QUOTA set in the superblock, triggering an
assertion failure at:
btrfs_read_qgroup_config() -> qgroup_read_enable_gen()
To fix this issue, set the BTRFS_FEATURE_INCOMPAT_SIMPLE_QUOTA flag
immediately after setting the BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE.
This ensures that both flags are flushed to disk within the same
transaction.
Fixes: 182940f4f4db ("btrfs: qgroup: add new quota mode for simple quotas")
CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Julian Sun <sunjunchao2870@gmail.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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During swap activation we iterate over the extents of a file and we can
have many thousands of them, so we can end up in a busy loop monopolizing
a core. Avoid this by doing a voluntary reschedule after processing each
extent.
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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During swap activation we iterate over the extents of a file, then do
several checks for each extent, some of which may take some significant
time such as checking if an extent is shared. Since a file can have
many thousands of extents, this can be a very slow operation and it's
currently not interruptible. I had a bug during development of a previous
patch that resulted in an infinite loop when iterating the extents, so
a core was busy looping and I couldn't cancel the operation, which is very
annoying and requires a reboot. So make the loop interruptible by checking
for fatal signals at the end of each iteration and stopping immediately if
there is one.
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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When activating a swap file, to determine if an extent is shared we use
can_nocow_extent(), which ends up at btrfs_cross_ref_exist(). That helper
is meant to be quick because it's used in the NOCOW write path, when
flushing delalloc and when doing a direct IO write, however it does return
some false positives, meaning it may indicate that an extent is shared
even if it's no longer the case. For the write path this is fine, we just
do a unnecessary COW operation instead of doing a more rigorous check
which would be too heavy (calling btrfs_is_data_extent_shared()).
However when activating a swap file, the false positives simply result
in a failure, which is confusing for users/applications. One particular
case where this happens is when a data extent only has 1 reference but
that reference is not inlined in the extent item located in the extent
tree - this happens when we create more than 33 references for an extent
and then delete those 33 references plus every other non-inline reference
except one. The function check_committed_ref() assumes that if the size
of an extent item doesn't match the size of struct btrfs_extent_item
plus the size of an inline reference (plus an owner reference in case
simple quotas are enabled), then the extent is shared - that is not the
case however, we can have a single reference but it's not inlined - the
reason we do this is to be fast and avoid inspecting non-inline references
which may be located in another leaf of the extent tree, slowing down
write paths.
The following test script reproduces the bug:
$ cat test.sh
#!/bin/bash
DEV=/dev/sdi
MNT=/mnt/sdi
NUM_CLONES=50
umount $DEV &> /dev/null
run_test()
{
local sync_after_add_reflinks=$1
local sync_after_remove_reflinks=$2
mkfs.btrfs -f $DEV > /dev/null
#mkfs.xfs -f $DEV > /dev/null
mount $DEV $MNT
touch $MNT/foo
chmod 0600 $MNT/foo
# On btrfs the file must be NOCOW.
chattr +C $MNT/foo &> /dev/null
xfs_io -s -c "pwrite -b 1M 0 1M" $MNT/foo
mkswap $MNT/foo
for ((i = 1; i <= $NUM_CLONES; i++)); do
touch $MNT/foo_clone_$i
chmod 0600 $MNT/foo_clone_$i
# On btrfs the file must be NOCOW.
chattr +C $MNT/foo_clone_$i &> /dev/null
cp --reflink=always $MNT/foo $MNT/foo_clone_$i
done
if [ $sync_after_add_reflinks -ne 0 ]; then
# Flush delayed refs and commit current transaction.
sync -f $MNT
fi
# Remove the original file and all clones except the last.
rm -f $MNT/foo
for ((i = 1; i < $NUM_CLONES; i++)); do
rm -f $MNT/foo_clone_$i
done
if [ $sync_after_remove_reflinks -ne 0 ]; then
# Flush delayed refs and commit current transaction.
sync -f $MNT
fi
# Now use the last clone as a swap file. It should work since
# its extent are not shared anymore.
swapon $MNT/foo_clone_${NUM_CLONES}
swapoff $MNT/foo_clone_${NUM_CLONES}
umount $MNT
}
echo -e "\nTest without sync after creating and removing clones"
run_test 0 0
echo -e "\nTest with sync after creating clones"
run_test 1 0
echo -e "\nTest with sync after removing clones"
run_test 0 1
echo -e "\nTest with sync after creating and removing clones"
run_test 1 1
Running the test:
$ ./test.sh
Test without sync after creating and removing clones
wrote 1048576/1048576 bytes at offset 0
1 MiB, 1 ops; 0.0017 sec (556.793 MiB/sec and 556.7929 ops/sec)
Setting up swapspace version 1, size = 1020 KiB (1044480 bytes)
no label, UUID=a6b9c29e-5ef4-4689-a8ac-bc199c750f02
swapon: /mnt/sdi/foo_clone_50: swapon failed: Invalid argument
swapoff: /mnt/sdi/foo_clone_50: swapoff failed: Invalid argument
Test with sync after creating clones
wrote 1048576/1048576 bytes at offset 0
1 MiB, 1 ops; 0.0036 sec (271.739 MiB/sec and 271.7391 ops/sec)
Setting up swapspace version 1, size = 1020 KiB (1044480 bytes)
no label, UUID=5e9008d6-1f7a-4948-a1b4-3f30aba20a33
swapon: /mnt/sdi/foo_clone_50: swapon failed: Invalid argument
swapoff: /mnt/sdi/foo_clone_50: swapoff failed: Invalid argument
Test with sync after removing clones
wrote 1048576/1048576 bytes at offset 0
1 MiB, 1 ops; 0.0103 sec (96.665 MiB/sec and 96.6651 ops/sec)
Setting up swapspace version 1, size = 1020 KiB (1044480 bytes)
no label, UUID=916c2740-fa9f-4385-9f06-29c3f89e4764
Test with sync after creating and removing clones
wrote 1048576/1048576 bytes at offset 0
1 MiB, 1 ops; 0.0031 sec (314.268 MiB/sec and 314.2678 ops/sec)
Setting up swapspace version 1, size = 1020 KiB (1044480 bytes)
no label, UUID=06aab1dd-4d90-49c0-bd9f-3a8db4e2f912
swapon: /mnt/sdi/foo_clone_50: swapon failed: Invalid argument
swapoff: /mnt/sdi/foo_clone_50: swapoff failed: Invalid argument
Fix this by reworking btrfs_swap_activate() to instead of using extent
maps and checking for shared extents with can_nocow_extent(), iterate
over the inode's file extent items and use the accurate
btrfs_is_data_extent_shared().
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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When activating the swap file we flush all delalloc and wait for ordered
extent completion, so that we don't miss any delalloc and extents before
we check that the file's extent layout is usable for a swap file and
activate the swap file. We are called with the inode's VFS lock acquired,
so we won't race with buffered and direct IO writes, however we can still
race with memory mapped writes since they don't acquire the inode's VFS
lock. The race window is between flushing all delalloc and locking the
whole file's extent range, since memory mapped writes lock an extent range
with the length of a page.
Fix this by acquiring the inode's mmap lock before we flush delalloc.
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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When we call btrfs_read_folio() we get an unlocked folio, so it is possible
for a different thread to concurrently modify folio->mapping. We must
check that this hasn't happened once we do have the lock.
CC: stable@vger.kernel.org # 6.12+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
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When we call btrfs_read_folio() to bring a folio uptodate, we unlock the
folio. The result of that is that a different thread can modify the
mapping (like remove it with invalidate) before we call folio_lock().
This results in an invalid page and we need to try again.
In particular, if we are relocating concurrently with aborting a
transaction, this can result in a crash like the following:
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 0 P4D 0
Oops: 0000 [#1] SMP
CPU: 76 PID: 1411631 Comm: kworker/u322:5
Workqueue: events_unbound btrfs_reclaim_bgs_work
RIP: 0010:set_page_extent_mapped+0x20/0xb0
RSP: 0018:ffffc900516a7be8 EFLAGS: 00010246
RAX: ffffea009e851d08 RBX: ffffea009e0b1880 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffc900516a7b90 RDI: ffffea009e0b1880
RBP: 0000000003573000 R08: 0000000000000001 R09: ffff88c07fd2f3f0
R10: 0000000000000000 R11: 0000194754b575be R12: 0000000003572000
R13: 0000000003572fff R14: 0000000000100cca R15: 0000000005582fff
FS: 0000000000000000(0000) GS:ffff88c07fd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000407d00f002 CR4: 00000000007706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
<TASK>
? __die+0x78/0xc0
? page_fault_oops+0x2a8/0x3a0
? __switch_to+0x133/0x530
? wq_worker_running+0xa/0x40
? exc_page_fault+0x63/0x130
? asm_exc_page_fault+0x22/0x30
? set_page_extent_mapped+0x20/0xb0
relocate_file_extent_cluster+0x1a7/0x940
relocate_data_extent+0xaf/0x120
relocate_block_group+0x20f/0x480
btrfs_relocate_block_group+0x152/0x320
btrfs_relocate_chunk+0x3d/0x120
btrfs_reclaim_bgs_work+0x2ae/0x4e0
process_scheduled_works+0x184/0x370
worker_thread+0xc6/0x3e0
? blk_add_timer+0xb0/0xb0
kthread+0xae/0xe0
? flush_tlb_kernel_range+0x90/0x90
ret_from_fork+0x2f/0x40
? flush_tlb_kernel_range+0x90/0x90
ret_from_fork_asm+0x11/0x20
</TASK>
This occurs because cleanup_one_transaction() calls
destroy_delalloc_inodes() which calls invalidate_inode_pages2() which
takes the folio_lock before setting mapping to NULL. We fail to check
this, and subsequently call set_extent_mapping(), which assumes that
mapping != NULL (in fact it asserts that in debug mode)
Note that the "fixes" patch here is not the one that introduced the
race (the very first iteration of this code from 2009) but a more recent
change that made this particular crash happen in practice.
Fixes: e7f1326cc24e ("btrfs: set page extent mapped after read_folio in relocate_one_page")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
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When a COWing a tree block, at btrfs_cow_block(), and we have the
tracepoint trace_btrfs_cow_block() enabled and preemption is also enabled
(CONFIG_PREEMPT=y), we can trigger a use-after-free in the COWed extent
buffer while inside the tracepoint code. This is because in some paths
that call btrfs_cow_block(), such as btrfs_search_slot(), we are holding
the last reference on the extent buffer @buf so btrfs_force_cow_block()
drops the last reference on the @buf extent buffer when it calls
free_extent_buffer_stale(buf), which schedules the release of the extent
buffer with RCU. This means that if we are on a kernel with preemption,
the current task may be preempted before calling trace_btrfs_cow_block()
and the extent buffer already released by the time trace_btrfs_cow_block()
is called, resulting in a use-after-free.
Fix this by moving the trace_btrfs_cow_block() from btrfs_cow_block() to
btrfs_force_cow_block() before the COWed extent buffer is freed.
This also has a side effect of invoking the tracepoint in the tree defrag
code, at defrag.c:btrfs_realloc_node(), since btrfs_force_cow_block() is
called there, but this is fine and it was actually missing there.
Reported-by: syzbot+8517da8635307182c8a5@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/6759a9b9.050a0220.1ac542.000d.GAE@google.com/
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Fix a use-after-free in the I/O completion path for encoded reads by
using a completion instead of a wait_queue for synchronizing the
destruction of 'struct btrfs_encoded_read_private'.
Fixes: 1881fba89bd5 ("btrfs: add BTRFS_IOC_ENCODED_READ ioctl")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever::
- Revert one v6.13 fix at the author's request (to be done differently)
- Fix a minor problem with recent NFSv4.2 COPY enhancements
- Fix an NFSv4.0 callback bug introduced in the v6.13 merge window
* tag 'nfsd-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: restore callback functionality for NFSv4.0
NFSD: fix management of pending async copies
nfsd: Revert "nfsd: release svc_expkey/svc_export with rcu_work"
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Daniel Machon says:
====================
net: lan969x: add RGMII support
== Description:
This series is the fourth of a multi-part series, that prepares and adds
support for the new lan969x switch driver.
The upstreaming efforts is split into multiple series (might change a
bit as we go along):
1) Prepare the Sparx5 driver for lan969x (merged)
2) Add support for lan969x (same basic features as Sparx5
provides excl. FDMA and VCAP, merged).
3) Add lan969x VCAP functionality (merged).
--> 4) Add RGMII support.
5) Add FDMA support.
== RGMII support:
The lan969x switch device includes two RGMII port interfaces (port 28
and 29) supporting data speeds of 1 Gbps, 100 Mbps and 10 Mbps.
== Patch breakdown:
Patch #1 does some preparation work.
Patch #2 adds new function: is_port_rgmii() to the match data ops.
Patch #3 uses the is_port_rgmii() in a number of places.
Patch #4 makes sure that we do not configure an RGMII device as a
low-speed device, when doing a port config.
Patch #5 makes sure we only return the PCS if the port mode requires
it.
Patch #6 adds checks for RGMII PHY modes in sparx5_verify_speeds().
Patch #7 adds registers required to configure RGMII.
Patch #8 adds RGMII implementation.
Patch #9 documents RGMII delays in the dt-bindings.
Details are in the commit description of the individual patches
v4: https://lore.kernel.org/20241213-sparx5-lan969x-switch-driver-4-v4-0-d1a72c9c4714@microchip.com
v3: https://lore.kernel.org/20241118-sparx5-lan969x-switch-driver-4-v3-0-3cefee5e7e3a@microchip.com
v2: https://lore.kernel.org/20241113-sparx5-lan969x-switch-driver-4-v2-0-0db98ac096d1@microchip.com
v1: https://lore.kernel.org/20241106-sparx5-lan969x-switch-driver-4-v1-0-f7f7316436bd@microchip.com
====================
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-0-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The lan969x switch device supports two RGMII port interfaces that can be
configured for MAC level rx and tx delays. Document two new properties
{rx,tx}-internal-delay-ps in the bindings, used to select these delays.
Tested-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-9-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The lan969x switch device includes two RGMII port interfaces (port 28
and 29) supporting data speeds of 1 Gbps, 100 Mbps and 10 Mbps. MAC
level delays are configurable through the HSIO_WRAP target, by choosing
a phase shift selector, corresponding to a certain time delay in nano
seconds.
Add new file: lan969x_rgmii.c that contains the implementation for
configuring the RGMII port devices. MAC level delays are configured
using the "{rx,tx}-internal-delay-ps" properties. These properties must
be specified independently of the phy-mode. If missing, or set to zero,
the MAC will not apply any delay.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-8-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Configuration of RGMII is done by configuring the GPIO and clock
settings in the HSIOWRAP target, and configuring the RGMII port devices
in the DEVRGMII target. Both targets contain registers replicated for
the number of RGMII port devices, which is two.
Add said targets and register macros required to configure RGMII.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-7-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When doing a port config, we verify the port speed against the PHY mode
and supported speeds of that PHY mode. Add checks for the four RGMII phy
modes: RGMII, RGMII_ID, RGMII_TXID and RGMII_RXID.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-6-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The RGMII ports have no PCS to configure. Make sure we only return the
PCS for port modes that require it.
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-5-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When doing a port config, we configure low-speed port devices, among
other things. We have a check to ensure, that the device is indeed a
low-speed device, an not a high-speed device. Add an additional check,
to ensure that the device is not an RGMII device.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-4-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now that we can check if a given port is an RGMII port, use it in the
following cases:
- To set RGMII PHY modes for RGMII port devices.
- To avoid checking for a SerDes node in the devicetree, when the port
is an RGMII port.
- To bail out of sparx5_port_init() when the common configuration is
done.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-3-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The lan969x device contains two RGMII port interfaces, sitting at port
28 and 29. Add function: is_port_rgmii() to the match data ops, that
checks if a given port is an RGMII port or not. For Sparx5, this
function always returns false.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-2-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The sparx5_port_init() does initial configuration of a variety of
different features and options for each port. Some are shared for all
types of devices, some are not. As it is now, common configuration is
done after configuration of low-speed devices. This will not work when
adding RGMII support in a subsequent patch.
In preparation for lan969x RGMII support, move a block of code, that
configures 2g5 devices, down. This ensures that the configuration common
to all devices is done before configuration of 2g5, 5g, 10g and 25g
devices.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-1-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tariq Toukan says:
====================
mlx5 misc fixes 2024-12-20
This small patchset provides misc bug fixes from the team to the mlx5
core and Eth drivers.
====================
Link: https://patch.msgid.link/20241220081505.1286093-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In the cited commit, when changing from switchdev to legacy mode,
uplink representor's netdev is kept, and its profile is replaced with
nic profile, so netdev is detached from old profile, then attach to
new profile.
During profile change, the hardware resources allocated by the old
profile will be cleaned up. However, the cleanup is relying on the
related kernel modules. And they may need to flush themselves first,
which is triggered by netdev events, for example, NETDEV_UNREGISTER.
However, netdev is kept, or netdev_register is called after the
cleanup, which may cause troubles because the resources are still
referred by kernel modules.
The same process applies to all the caes when uplink is leaving
switchdev mode, including devlink eswitch mode set legacy, driver
unload and devlink reload. For the first one, it can be blocked and
returns failure to users, whenever possible. But it's hard for the
others. Besides, the attachment to nic profile is unnecessary as the
netdev will be unregistered anyway for such cases.
So in this patch, the original behavior is kept only for devlink
eswitch set mode legacy. For the others, moves netdev unregistration
before the profile change.
Fixes: 7a9fb35e8c3a ("net/mlx5e: Do not reload ethernet ports when changing eswitch mode")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241220081505.1286093-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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During driver unload, unregister_netdev is called after unloading
vport rep. So, the mlx5e_rep_priv is already freed while trying to get
rpriv->netdev, or walk rpriv->tc_ht, which results in use-after-free.
So add the checking to make sure access the data of vport rep which is
still loaded.
Fixes: d1569537a837 ("net/mlx5e: Modify and restore TC rules for IPSec TX rules")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241220081505.1286093-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In MACsec, it is possible to create multiple active TX SAs on a SC,
but only one such SA can be used at a time for transmission. This SA
is selected through the encoding_sa link parameter.
When there are 2 or more active TX SAs configured (encoding_sa=0):
ip macsec add macsec0 tx sa 0 pn 1 on key 00 <KEY1>
ip macsec add macsec0 tx sa 1 pn 1 on key 00 <KEY2>
... the traffic should be still sent via TX SA 0 as the encoding_sa was
not changed. However, the driver ignores the encoding_sa and overrides
it to SA 1 by installing the flow steering id of the newly created TX SA
into the SCI -> flow steering id hash map. The future packet tx
descriptors will point to the incorrect flow steering rule (SA 1).
This patch fixes the issue by avoiding the creation of the flow steering
rule for an active TX SA that is not the encoding_sa. The driver side
tx_sa object and the FW side macsec object are still created. When the
encoding_sa link parameter is changed to another active TX SA, only the
new flow steering rule will be created in the mlx5e_macsec_upd_txsa()
handler.
Fixes: 8ff0ac5be144 ("net/mlx5: Add MACsec offload Tx command support")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Lior Nahmanson <liorna@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241220081505.1286093-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When creating a software steering completion queue (CQ), an arbitrary
MSIX vector n is selected. This results in the CQ sharing the same
Ethernet traffic channel n associated with the chosen vector. However,
the value of n is often unpredictable, which can introduce complications
for interrupt monitoring and verification tools.
Moreover, SW steering uses polling rather than event-driven interrupts.
Therefore, there is no need to select any MSIX vector other than the
existing vector 0 for CQ creation.
In light of these factors, and to enhance predictability, we modify the
code to consistently select MSIX vector 0 for CQ creation.
Fixes: 297cccebdc5a ("net/mlx5: DR, Expose an internal API to issue RDMA operations")
Signed-off-by: Shahar Shitrit <shshitrit@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241220081505.1286093-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
ixgbe, ixgbevf: Add support for Intel(R) E610 device
Piotr Kwapulinski says:
Add initial support for Intel(R) E610 Series of network devices. The E610
is based on X550 but adds firmware managed link, enhanced security
capabilities and support for updated server manageability.
* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ixgbevf: Add support for Intel(R) E610 device
PCI: Add PCI_VDEVICE_SUB helper macro
ixgbe: Enable link management in E610 device
ixgbe: Clean up the E610 link management related code
ixgbe: Add ixgbe_x540 multiple header inclusion protection
ixgbe: Add support for EEPROM dump in E610 device
ixgbe: Add support for NVM handling in E610 device
ixgbe: Add link management support for E610 device
ixgbe: Add support for E610 device capabilities detection
ixgbe: Add support for E610 FW Admin Command Interface
====================
Link: https://patch.msgid.link/20241220201521.3363985-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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An issue was present in the initial driver implementation. The driver
read the power status of all channels before toggling the bit of the
desired one. Using the power status register as a base value introduced
a problem, because only the bit corresponding to the concerned channel ID
should be set in the write-only power enable register. This led to cases
where disabling power for one channel also powered off other channels.
This patch removes the power status read and ensures the value is
limited to the bit matching the channel index of the PI.
Fixes: 20e6d190ffe1 ("net: pse-pd: Add TI TPS23881 PSE controller driver")
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20241220170400.291705-1-kory.maincent@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The __ethtool_get_ts_info function can be called with or without the
rtnl lock held. When the rtnl lock is not held, using rtnl_dereference()
triggers a warning due to the lack of lock context.
Add an rcu_read_lock() to ensure the lock is acquired and to maintain
synchronization.
Reported-by: syzbot+a344326c05c98ba19682@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/676147f8.050a0220.37aaf.0154.GAE@google.com/
Fixes: b9e3f7dc9ed9 ("net: ethtool: tsinfo: Enhance tsinfo to support several hwtstamp by net topology")
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241220083741.175329-1-kory.maincent@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The Host Port (i.e. CPU facing port) of CPSW receives traffic from Linux
via TX DMA Channels which are Hardware Queues consisting of traffic
categorized according to their priority. The Host Port is configured to
dequeue traffic from these Hardware Queues on the basis of priority i.e.
as long as traffic exists on a Hardware Queue of a higher priority, the
traffic on Hardware Queues of lower priority isn't dequeued. An alternate
operation is also supported wherein traffic can be dequeued by the Host
Port in a Round-Robin manner.
Until commit under Fixes, the am65-cpsw driver enabled a single TX DMA
Channel, due to which, unless modified by user via "ethtool", all traffic
from Linux is transmitted on DMA Channel 0. Therefore, configuring
the Host Port for priority based dequeuing or Round-Robin operation
is identical since there is a single DMA Channel.
Since commit under Fixes, all 8 TX DMA Channels are enabled by default.
Additionally, the default "tc mapping" doesn't take into account
the possibility of different traffic profiles which various users
might have. This results in traffic starvation at the Host Port
due to the priority based dequeuing which has been enabled by default
since the inception of the driver. The traffic starvation triggers
NETDEV WATCHDOG timeout for all TX DMA Channels that haven't been serviced
due to the presence of traffic on the higher priority TX DMA Channels.
Fix this by defaulting to Round-Robin dequeuing at the Host Port, which
shall ensure that traffic is dequeued from all TX DMA Channels irrespective
of the traffic profile. This will address the NETDEV WATCHDOG timeouts.
At the same time, users can still switch from Round-Robin to Priority
based dequeuing at the Host Port with the help of the "p0-rx-ptype-rrobin"
private flag of "ethtool". Users are expected to setup an appropriate
"tc mapping" that suits their traffic profile when switching to priority
based dequeuing at the Host Port.
Fixes: be397ea3473d ("net: ethernet: am65-cpsw: Set default TX channels to maximum")
Cc: <stable@vger.kernel.org>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://patch.msgid.link/20241220075618.228202-1-s-vadapalli@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jakub Kicinski says:
====================
eth: fbnic: support basic RSS config and setting channel count
Add support for basic RSS config (indirection table, key get and set),
and changing the number of channels.
# ./ksft-net-drv/run_kselftest.sh -t drivers/net/hw:rss_ctx.py
TAP version 13
1..1
# timeout set to 0
# selftests: drivers/net/hw: rss_ctx.py
# KTAP version 1
# 1..15
# ok 1 rss_ctx.test_rss_key_indir
# ok 2 rss_ctx.test_rss_queue_reconfigure
# ok 3 rss_ctx.test_rss_resize
# ok 4 rss_ctx.test_hitless_key_update
.. the rest of the tests are for additional contexts so they
get skipped..
The slicing of the patches (and bugs) are mine, but I'm keeping
Alex as the author on the patches where he wrote 100% of the code.
====================
Link: https://patch.msgid.link/20241220025241.1522781-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement the channel count changes. Copy the netdev priv,
allocate new channels using it. Stop, swap, start.
Then free the copy of the priv along with the channels it
holds, which are now the channels that used to be on the
real priv.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241220025241.1522781-11-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Trivial implementation of ethtool channel get and set. Set is only
supported when device is closed, next patch will add code for
live reconfig.
Asymmetric configurations are supported (combined + extra Tx or Rx),
so are configurations with independent IRQs for Rx and Tx.
Having all 3 NAPI types (combined, Tx, Rx) is not supported.
We used to only call fbnic_reset_indir_tbl() during init.
Now that we call it after device had been register must
be careful not to override user config.
Link: https://patch.msgid.link/20241220025241.1522781-10-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To simplify dealing with RTNL_ASSERT() requirements further
down the line, move setting queue count and NAPI<>queue
association to their own helpers.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/20241220025241.1522781-9-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Change our method of swapping NAPIs without disturbing existing config.
This is primarily needed for "live reconfiguration" such as changing
the channel count when interface is already up.
Previously we were planning to use a trick of using shared interrupts.
We would install a second IRQ handler for the new NAPI, and make it
return IRQ_NONE until we were ready for it to take over. This works fine
functionally but breaks IRQ naming. The IRQ subsystem uses the IRQ name
to create the procfs entry, since both handlers used the same name
the second handler wouldn't get a proc directory registered.
When first one gets removed on success full ring count change
it would remove its directory and we would be left with none.
New approach uses a double pointer to the NAPI. The IRQ handler needs
to know how to locate the NAPI to schedule. We register a single IRQ handler
and give it a pointer to a pointer. We can then change what it points to
without re-registering. This may have a tiny perf impact, but really
really negligible.
Link: https://patch.msgid.link/20241220025241.1522781-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We will need an array for storing NAPIs in the upcoming IRQ handler
reuse rework. Replace the current list we have, so that we are able
to reuse it later.
In a few places replace i as the iterator with t when we iterate
over triads, this seems slightly less confusing than having
i, j, k variables.
Link: https://patch.msgid.link/20241220025241.1522781-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Support setting the fields over which RSS computes its hash.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/20241220025241.1522781-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Let the user program the RSS indirection table and the RSS key.
Straightforward implementation. Track the changes and don't bother
poking the HW if user asked for a config identical to what's already
programmed. The device only supports Toeplitz hash.
Similarly to the GET support - all the real code that does the programming
was part of initial driver submission, already.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/20241220025241.1522781-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Secondary RSS indirection table is for additional contexts.
It can / should be initialized when such context is created.
Since we don't support creating RSS contexts, yet, this change
has no user visible effect.
Link: https://patch.msgid.link/20241220025241.1522781-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The initial driver submission already added all the RSS state,
as part of multi-queue support. Expose the configuration via
the ethtool APIs.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241220025241.1522781-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Define ethtool callback handlers in order in which they are defined
in the ops struct. It doesn't really matter what the order is,
but it's good to have an order.
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Link: https://patch.msgid.link/20241220025241.1522781-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tariq Toukan says:
====================
mlx5 misc changes 2024-12-19
The first two patches by Rongwei add support for multi-host LAG. The new
multi-host NICs provide each host with partial ports, allowing each host
to maintain its unique LAG configuration.
Patches 3-7 by Moshe, Mark and Yevgeny are enhancements and preparations
in fs_core and HW steering, in preparation for future patchsets.
Patches 8-9 by Itamar add SW Steering support for ConnectX-8. They are
moved here after being part of previous submissions, yet to be accepted.
Patch 10 by Carolina cleans up an unnecessary log message.
Patch 11 by Patrisious allows RDMA RX steering creation over devices
with IB link layer.
====================
Link: https://patch.msgid.link/20241219175841.1094544-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Relax the capability check for creating the RDMA RX steering domain
by considering only the capabilities reported by the firmware
as necessary for its creation, which in turn allows RDMA RX creation
over devices with IB link layer as well.
The table_miss_action_domain capability is required only for a specific
priority, which is handled in mlx5_rdma_enable_roce_steering().
The additional capability check for this case is already in place.
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-12-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The absence of Precision Time Measurement support should not emit a
message, as it can be misleading in contexts where PTM is not required.
Remove the log message indicating the lack of PCIe PTM support.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-11-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for a new steering format version that is implemented by
ConnectX-8.
Except for several differences, the STEv3 is identical to STEv2, so
for most callbacks STEv3 context struct will call STEv2 functions.
Signed-off-by: Itamar Gozlan <igozlan@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-10-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Expand SWS STE callbacks to support ConnectX-8 hardware.
Move common enums and structures to a shared header file.
Signed-off-by: Itamar Gozlan <igozlan@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-9-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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HWS has two types of APIs:
- Native: fastest and slimmest, async API.
The user of this API is required to manage rule handles memory,
and to poll for completion for each rule.
- BWC: backward compatible API, similar semantics to SWS API.
This layer is implemented above native API and it does all
the work for the user, so that it is easy to switch between
SWS and HWS.
Right now the existing users of HWS require only BWC API.
Therefore, in order to not waste resources, this patch disables
send queues allocation for native API.
If in the future support for faster HWS rule insertion will be required
(such as for Connection Tracking), native queues can be enabled.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Itamar Gozlan <igozlan@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-8-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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No need to have mlx5hws_send_queues_open/close in header.
Make them static and remove from header.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Itamar Gozlan <igozlan@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-7-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When inserting into an rhashtable faster than it can grow, an -EBUSY error
may be encountered. Modify the insertion logic to retry on -EBUSY until
either a successful insertion or a genuine error is returned.
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241219175841.1094544-6-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Refactor fc_pool API to create generic fs_pool API, as HW steering has
more flow steering elements which can take advantage of the same pool of
bulks API. Change fs_counters code to use the fs_pool API.
Note, removed __counted_by from struct mlx5_fc_bulk as bulk_len is now
inner struct member. It will be added back once __counted_by can support
inner struct members.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently mlx5_flow_destination includes counter_id which is assigned in
case we use flow counter on the flow steering rule. However, counter_id
is not enough data in case of using HW Steering. Thus, have mlx5_fc
object as part of mlx5_flow_destination instead of counter_id and assign
it where needed.
In case counter_id is received from user space, create a local counter
object to represent it.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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