| Commit message (Collapse) | Author | Age | Files | Lines |
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Commit d9028db618a6 ("idpf: convert to libeth Tx buffer completion")
inadvertently removed code that was necessary for the tx buffer cleaning
routine to iterate over all buffers associated with a packet.
When a frag is too large for a single data descriptor, it will be split
across multiple data descriptors. This means the frag will span multiple
buffers in the buffer ring in order to keep the descriptor and buffer
ring indexes aligned. The buffer entries in the ring are technically
empty and no cleaning actions need to be performed. These empty buffers
can precede other frags associated with the same packet. I.e. a single
packet on the buffer ring can look like:
buf[0]=skb0.frag0
buf[1]=skb0.frag1
buf[2]=empty
buf[3]=skb0.frag2
The cleaning routine iterates through these buffers based on a matching
completion tag. If the completion tag is not set for buf2, the loop will
end prematurely. Frag2 will be left uncleaned and next_to_clean will be
left pointing to the end of packet, which will break the cleaning logic
for subsequent cleans. This consequently leads to tx timeouts.
Assign the empty bufs the same completion tag for the packet to ensure
the cleaning routine iterates over all of the buffers associated with
the packet.
Fixes: d9028db618a6 ("idpf: convert to libeth Tx buffer completion")
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Acked-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Madhu chittim <madhu.chittim@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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In switchdev mode the uplink VSI should receive all unmatched packets,
including VLANs. Therefore, VLAN pruning should be disabled if uplink is
in switchdev mode. It is already being done in ice_eswitch_setup_env(),
however the addition of ice_up() in commit 44ba608db509 ("ice: do
switchdev slow-path Rx using PF VSI") caused VLAN pruning to be
re-enabled after disabling it.
Add a check to ice_set_vlan_filtering_features() to ensure VLAN
filtering will not be enabled if uplink is in switchdev mode. Note that
ice_is_eswitch_mode_switchdev() is being used instead of
ice_is_switchdev_running(), as the latter would only return true after
the whole switchdev setup completes.
Fixes: 44ba608db509 ("ice: do switchdev slow-path Rx using PF VSI")
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Priya Singh <priyax.singh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Commit 608a5c05c39b ("virtchnl: support queue rate limit and quanta
size configuration") introduced new virtchnl ops:
- get_qos_caps
- cfg_q_bw
- cfg_q_quanta
New ops were added to ice_virtchnl_dflt_ops, in
commit 015307754a19 ("ice: Support VF queue rate limit and quanta
size configuration"), but not to the ice_virtchnl_repr_ops. Because
of that, if we get one of those messages in switchdev mode we end up
with NULL pointer dereference:
[ 1199.794701] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 1199.794804] Workqueue: ice ice_service_task [ice]
[ 1199.794878] RIP: 0010:0x0
[ 1199.795027] Call Trace:
[ 1199.795033] <TASK>
[ 1199.795039] ? __die+0x20/0x70
[ 1199.795051] ? page_fault_oops+0x140/0x520
[ 1199.795064] ? exc_page_fault+0x7e/0x270
[ 1199.795074] ? asm_exc_page_fault+0x22/0x30
[ 1199.795086] ice_vc_process_vf_msg+0x6e5/0xd30 [ice]
[ 1199.795165] __ice_clean_ctrlq+0x734/0x9d0 [ice]
[ 1199.795207] ice_service_task+0xccf/0x12b0 [ice]
[ 1199.795248] process_one_work+0x21a/0x620
[ 1199.795260] worker_thread+0x18d/0x330
[ 1199.795269] ? __pfx_worker_thread+0x10/0x10
[ 1199.795279] kthread+0xec/0x120
[ 1199.795288] ? __pfx_kthread+0x10/0x10
[ 1199.795296] ret_from_fork+0x2d/0x50
[ 1199.795305] ? __pfx_kthread+0x10/0x10
[ 1199.795312] ret_from_fork_asm+0x1a/0x30
[ 1199.795323] </TASK>
Fixes: 015307754a19 ("ice: Support VF queue rate limit and quanta size configuration")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Fix incorrect PHY timestamp extraction for ETH56G.
It's better to use FIELD_PREP() than manual shift.
Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Przemyslaw Korba <przemyslaw.korba@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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To check if PHY Clock Recovery mechanic is available for a device, there
is a need to verify if given PHY is available within the netlist, but the
netlist node type used for the search is wrong, also the search context
shall be specified.
Modify the search function to allow specifying the context in the
search.
Use the PHY node type instead of CLOCK CONTROLLER type, also use proper
search context which for PHY search is PORT, as defined in E810
Datasheet [1] ('3.3.8.2.4 Node Part Number and Node Options (0x0003)' and
'Table 3-105. Program Topology Device NVM Admin Command').
[1] https://cdrdv2.intel.com/v1/dl/getContent/613875?explicitVersion=true
Fixes: 91e43ca0090b ("ice: fix linking when CONFIG_PTP_1588_CLOCK=n")
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Previously a workaround was added to avoid syndrome 0xcdb051. It is
triggered when offload a rule with tunnel encapsulation, and
forwarding to another table, but not matching on the internal port in
firmware steering mode. The original workaround skips internal tunnel
port logic, which is not correct as not all cases are considered. As
an example, if vlan is configured on the uplink port, traffic can't
pass because vlan header is not added with this workaround. Besides,
there is no such issue for software steering. So, this patch removes
that, and returns error directly if trying to offload such rule for
firmware steering.
Fixes: 06b4eac9c4be ("net/mlx5e: Don't offload internal port if filter device is out device")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Tested-by: Frode Nordahl <frode.nordahl@canonical.com>
Reviewed-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-7-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In a multi-PF netdev, each traffic channel creates its own resources
against a specific PF.
In the cited commit, where this support was added, the channel_param
logic was mistakenly kept unchanged, so it always used the primary PF
which is found at priv->mdev.
In this patch we fix this by moving the logic to be per-channel, and
passing the correct mdev instance.
This bug happened to be usually harmless, as the resulting cparam
structures would be the same for all channels, due to identical FW logic
and decisions.
However, in some use cases, like fwreset, this gets broken.
This could lead to different symptoms. Example:
Error cqe on cqn 0x428, ci 0x0, qn 0x10a9, opcode 0xe, syndrome 0x4,
vendor syndrome 0x32
Fixes: e4f9686bdee7 ("net/mlx5e: Let channels be SD-aware")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-6-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix the mentioned commit change for MPV mode, since in MPV mode the IB
device is shared between different core devices, so under this change
when moving both devices simultaneously to switchdev mode the IB device
removal and re-addition can race with itself causing unexpected behavior.
In such case do rescan_drivers() only once in order to add the ethernet
representor auxiliary device, and skip adding and removing IB devices.
Fixes: ab85ebf43723 ("net/mlx5: E-switch, refactor eswitch mode change")
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/20241203204920.232744-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In case that IB device is already disabled when moving to switchdev mode,
which can happen when working with LAG, need to do rescan_drivers()
before leaving in order to add ethernet representor auxiliary device.
Fixes: ab85ebf43723 ("net/mlx5: E-switch, refactor eswitch mode change")
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/20241203204920.232744-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The mentioned "Fixes" patch forgot to do that.
Fixes: 9addffa34359 ("net/mlx5: HWS, use lock classes for bwc locks")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It allocates a match template, which creates a compressed definer fc
struct, but that is not deallocated.
This commit fixes that.
Fixes: 74a778b4a63f ("net/mlx5: HWS, added definers handling")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 7ed816be35ab ("eth: bnxt: use page pool for head frags") added a
page pool for header frags, which may be distinct from the existing pool
for the aggregation ring. Prior to this change, frags used in the TPA
ring rx_tpa were allocated from system memory e.g. napi_alloc_frag()
meaning their lifetimes were not associated with a page pool. They can
be returned at any time and so the queue API did not alloc or free
rx_tpa.
But now frags come from a separate head_pool which may be different to
page_pool. Without allocating and freeing rx_tpa, frags allocated from
the old head_pool may be returned to a different new head_pool which
causes a mismatch between the pp hold/release count.
Fix this problem by properly freeing and allocating rx_tpa in the queue
API implementation.
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-4-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Refactor bnxt_alloc_rx_rings() to call bnxt_alloc_rx_agg_bmap() for
allocating rx_agg_bmap.
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-3-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Refactor bnxt_rx_ring_info->tpa_info operations into helpers that work
on a single tpa_info in prep for queue API using them.
There are 2 pairs of operations:
* bnxt_alloc_one_tpa_info()
* bnxt_free_one_tpa_info()
These alloc/free the tpa_info array itself.
* bnxt_alloc_one_tpa_info_data()
* bnxt_free_one_tpa_info_data()
These alloc/free the frags stored in tpa_info array.
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-2-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We should not assume mac header is set in output path.
Use skb_eth_hdr() instead of eth_hdr() to fix the issue.
sysbot reported the following :
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 skb_mac_header include/linux/skbuff.h:3052 [inline]
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 eth_hdr include/linux/if_ether.h:24 [inline]
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 geneve_xmit_skb drivers/net/geneve.c:898 [inline]
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 geneve_xmit+0x4c38/0x5730 drivers/net/geneve.c:1039
Modules linked in:
CPU: 0 UID: 0 PID: 11635 Comm: syz.4.1423 Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:skb_mac_header include/linux/skbuff.h:3052 [inline]
RIP: 0010:eth_hdr include/linux/if_ether.h:24 [inline]
RIP: 0010:geneve_xmit_skb drivers/net/geneve.c:898 [inline]
RIP: 0010:geneve_xmit+0x4c38/0x5730 drivers/net/geneve.c:1039
Code: 21 c6 02 e9 35 d4 ff ff e8 a5 48 4c fb 90 0f 0b 90 e9 fd f5 ff ff e8 97 48 4c fb 90 0f 0b 90 e9 d8 f5 ff ff e8 89 48 4c fb 90 <0f> 0b 90 e9 41 e4 ff ff e8 7b 48 4c fb 90 0f 0b 90 e9 cd e7 ff ff
RSP: 0018:ffffc90003b2f870 EFLAGS: 00010283
RAX: 000000000000037a RBX: 000000000000ffff RCX: ffffc9000dc3d000
RDX: 0000000000080000 RSI: ffffffff86428417 RDI: 0000000000000003
RBP: ffffc90003b2f9f0 R08: 0000000000000003 R09: 000000000000ffff
R10: 000000000000ffff R11: 0000000000000002 R12: ffff88806603c000
R13: 0000000000000000 R14: ffff8880685b2780 R15: 0000000000000e23
FS: 00007fdc2deed6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a1dff8 CR3: 0000000056b8c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__netdev_start_xmit include/linux/netdevice.h:5002 [inline]
netdev_start_xmit include/linux/netdevice.h:5011 [inline]
__dev_direct_xmit+0x58a/0x720 net/core/dev.c:4490
dev_direct_xmit include/linux/netdevice.h:3181 [inline]
packet_xmit+0x1e4/0x360 net/packet/af_packet.c:285
packet_snd net/packet/af_packet.c:3146 [inline]
packet_sendmsg+0x2700/0x5660 net/packet/af_packet.c:3178
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
__sys_sendto+0x488/0x4f0 net/socket.c:2197
__do_sys_sendto net/socket.c:2204 [inline]
__se_sys_sendto net/socket.c:2200 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Fixes: a025fb5f49ad ("geneve: Allow configuration of DF behaviour")
Reported-by: syzbot+3ec5271486d7cb2d242a@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/674f4b72.050a0220.17bd51.004a.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Link: https://patch.msgid.link/20241203182122.2725517-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The driver is currently using an ACL key block that is not supported by
Spectrum-4. This works because the driver is only using a single field
from this key block which is located in the same offset in the
equivalent Spectrum-4 key block.
The issue was discovered when the firmware started rejecting the use of
the unsupported key block. The change has been reverted to avoid
breaking users that only update their firmware.
Nonetheless, fix the issue by using the correct key block.
Fixes: 07ff135958dd ("mlxsw: Introduce flex key elements for Spectrum-4")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/35e72c97bdd3bc414fb8e4d747e5fb5d26c29658.1733237440.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently rtnl_link_get_net_ifla() gets called twice when we create
peer devices, once in rtnl_add_peer_net() and once in each ->newlink()
implementation.
This looks safer, however, it leads to a classic Time-of-Check to
Time-of-Use (TOCTOU) bug since IFLA_NET_NS_PID is very dynamic. And
because of the lack of checking error pointer of the second call, it
also leads to a kernel crash as reported by syzbot.
Fix this by getting rid of the second call, which already becomes
redudant after Kuniyuki's work. We have to propagate the result of the
first rtnl_link_get_net_ifla() down to each ->newlink().
Reported-by: syzbot+21ba4d5adff0b6a7cfc6@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=21ba4d5adff0b6a7cfc6
Fixes: 0eb87b02a705 ("veth: Set VETH_INFO_PEER to veth_link_ops.peer_type.")
Fixes: 6b84e558e95d ("vxcan: Set VXCAN_INFO_PEER to vxcan_link_ops.peer_type.")
Fixes: fefd5d082172 ("netkit: Set IFLA_NETKIT_PEER_INFO to netkit_link_ops.peer_type.")
Cc: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20241129212519.825567-1-xiyou.wangcong@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Commit 43645ce03e00 ("qed: Populate nvm image attribute shadow.")
added support for populating flash image attributes, notably
"num_images". However, some cards were not able to return this
information. In such cases, the driver would return EINVAL, causing the
driver to exit.
Add check to return EOPNOTSUPP instead of EINVAL when the card is not
able to return these information. The caller function already handles
EOPNOTSUPP without error.
Fixes: 43645ce03e00 ("qed: Populate nvm image attribute shadow.")
Co-developed-by: Florian Forestier <florian@forestier.re>
Signed-off-by: Florian Forestier <florian@forestier.re>
Signed-off-by: Louis Leseur <louis.leseur@gmail.com>
Link: https://patch.msgid.link/20241128083633.26431-1-louis.leseur@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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LAN7800/7850
Fix outdated MII_LPA data in the LAN88xx PHY, which is used in LAN7800
and LAN7850 USB Ethernet controllers. Due to a hardware limitation, the
PHY cannot reliably update link status after parallel detection when the
link partner does not support auto-negotiation. To mitigate this, add a
PHY reset in `lan88xx_link_change_notify()` when `phydev->state` is
`PHY_NOLINK`, ensuring the PHY starts in a clean state and reports
accurate fixed link parallel detection results.
Fixes: 792aec47d59d9 ("add microchip LAN88xx phy driver")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20241125084050.414352-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2024-12-02
The first patch is by me and allows the use of sleeping GPIOs to set
termination GPIOs.
Alexander Kozhinov fixes the gs_usb driver to use the endpoints
provided by the usb endpoint descriptions instead of hard coded ones.
Dario Binacchi contributes 11 statistics related patches for various
CAN driver. A potential use after free in the hi311x is fixed. The
statistics for the c_can, sun4i_can, hi311x, m_can, ifi_canfd,
sja1000, sun4i_can, ems_usb, f81604 are fixed: update statistics even
if the allocation of the error skb fails and fix the incrementing of
the rx,tx error counters.
A patch by me fixes the workaround for DS80000789E 6 erratum in the
mcp251xfd driver.
The last patch is by Dmitry Antipov, targets the j1939 CAN protocol
and fixes a skb reference counting issue.
* tag 'linux-can-fixes-for-6.13-20241202' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: j1939: j1939_session_new(): fix skb reference counting
can: mcp251xfd: mcp251xfd_get_tef_len(): work around erratum DS80000789E 6.
can: f81604: f81604_handle_can_bus_errors(): fix {rx,tx}_errors statistics
can: ems_usb: ems_usb_rx_err(): fix {rx,tx}_errors statistics
can: sun4i_can: sun4i_can_err(): fix {rx,tx}_errors statistics
can: sja1000: sja1000_err(): fix {rx,tx}_errors statistics
can: hi311x: hi3110_can_ist(): fix {rx,tx}_errors statistics
can: ifi_canfd: ifi_canfd_handle_lec_err(): fix {rx,tx}_errors statistics
can: m_can: m_can_handle_lec_err(): fix {rx,tx}_errors statistics
can: hi311x: hi3110_can_ist(): update state error statistics if skb allocation fails
can: hi311x: hi3110_can_ist(): fix potential use-after-free
can: sun4i_can: sun4i_can_err(): call can_change_state() even if cf is NULL
can: c_can: c_can_handle_bus_err(): update statistics if skb allocation fails
can: gs_usb: add usb endpoint address detection at driver probe step
can: dev: can_set_termination(): allow sleeping GPIOs
====================
Link: https://patch.msgid.link/20241202090040.1110280-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit b8e0ddd36ce9 ("can: mcp251xfd: tef: prepare to workaround
broken TEF FIFO tail index erratum") introduced
mcp251xfd_get_tef_len() to get the number of unhandled transmit events
from the Transmit Event FIFO (TEF).
As the TEF has no head index, the driver uses the TX-FIFO's tail index
instead, assuming that send frames are completed.
When calculating the number of unhandled TEF events, that commit
didn't take mcp2518fd erratum DS80000789E 6. into account. According
to that erratum, the FIFOCI bits of a FIFOSTA register, here the
TX-FIFO tail index might be corrupted.
However here it seems the bit indicating that the TX-FIFO is
empty (MCP251XFD_REG_FIFOSTA_TFERFFIF) is not correct while the
TX-FIFO tail index is.
Assume that the TX-FIFO is indeed empty if:
- Chip's head and tail index are equal (len == 0).
- The TX-FIFO is less than half full.
(The TX-FIFO empty case has already been checked at the
beginning of this function.)
- No free buffers in the TX ring.
If the TX-FIFO is assumed to be empty, assume that the TEF is full and
return the number of elements in the TX-FIFO (which equals the number
of TEF elements).
If these assumptions are false, the driver might read to many objects
from the TEF. mcp251xfd_handle_tefif_one() checks the sequence numbers
and will refuse to process old events.
Reported-by: Renjaya Raga Zenta <renjaya.zenta@formulatrix.com>
Closes: https://patch.msgid.link/CAJ7t6HgaeQ3a_OtfszezU=zB-FqiZXqrnATJ3UujNoQJJf7GgA@mail.gmail.com
Fixes: b8e0ddd36ce9 ("can: mcp251xfd: tef: prepare to workaround broken TEF FIFO tail index erratum")
Tested-by: Renjaya Raga Zenta <renjaya.zenta@formulatrix.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20241126-mcp251xfd-fix-length-calculation-v2-1-c2ed516ed6ba@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The f81604_handle_can_bus_errors() function only incremented the receive
error counter and never the transmit error counter, even if the ECC_DIR
flag reported that an error had occurred during transmission.
Increment the receive/transmit error counter based on the value of the
ECC_DIR flag.
Fixes: 88da17436973 ("can: usb: f81604: add Fintek F81604 support")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-13-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The ems_usb_rx_err() function only incremented the receive error counter
and never the transmit error counter, even if the ECC_DIR flag reported
that an error had occurred during transmission.
Increment the receive/transmit error counter based on the value of the
ECC_DIR flag.
Fixes: 702171adeed3 ("ems_usb: Added support for EMS CPC-USB/ARM7 CAN/USB interface")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-12-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The sun4i_can_err() function only incremented the receive error counter
and never the transmit error counter, even if the STA_ERR_DIR flag
reported that an error had occurred during transmission.
Increment the receive/transmit error counter based on the value of the
STA_ERR_DIR flag.
Fixes: 0738eff14d81 ("can: Allwinner A10/A20 CAN Controller support - Kernel module")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-11-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The sja1000_err() function only incremented the receive error counter
and never the transmit error counter, even if the ECC_DIR flag reported
that an error had occurred during transmission.
Increment the receive/transmit error counter based on the value of the
ECC_DIR flag.
Fixes: 429da1cc841b ("can: Driver for the SJA1000 CAN controller")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-10-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The hi3110_can_ist() function was incorrectly incrementing only the
receive error counter, even in cases of bit or acknowledgment errors that
occur during transmission.
The fix the issue by incrementing the appropriate counter based on the
type of error.
Fixes: 57e83fb9b746 ("can: hi311x: Add Holt HI-311x CAN driver")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-9-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The ifi_canfd_handle_lec_err() function was incorrectly incrementing only
the receive error counter, even in cases of bit or acknowledgment errors
that occur during transmission.
Fix the issue by incrementing the appropriate counter based on the
type of error.
Fixes: 5bbd655a8bd0 ("can: ifi: Add more detailed error reporting")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Link: https://patch.msgid.link/20241122221650.633981-8-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The m_can_handle_lec_err() function was incorrectly incrementing only the
receive error counter, even in cases of bit or acknowledgment errors that
occur during transmission.
Fix the issue by incrementing the appropriate counter based on the
type of error.
Fixes: e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-7-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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allocation fails
Ensure that the statistics related to state error counters
(i. e. warning, passive, and bus-off) are updated even in case the skb
allocation fails. Additionally, also handle bus-off state is now.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-6-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The commit a22bd630cfff ("can: hi311x: do not report txerr and rxerr
during bus-off") removed the reporting of rxerr and txerr even in case
of correct operation (i. e. not bus-off).
The error count information added to the CAN frame after netif_rx() is
a potential use after free, since there is no guarantee that the skb
is in the same state. It might be freed or reused.
Fix the issue by postponing the netif_rx() call in case of txerr and
rxerr reporting.
Fixes: a22bd630cfff ("can: hi311x: do not report txerr and rxerr during bus-off")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-5-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Call the function can_change_state() if the allocation of the skb
fails, as it handles the cf parameter when it is null.
Additionally, this ensures that the statistics related to state error
counters (i. e. warning, passive, and bus-off) are updated.
Fixes: 0738eff14d81 ("can: Allwinner A10/A20 CAN Controller support - Kernel module")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-3-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Ensure that the statistics are always updated, even if the skb
allocation fails.
Fixes: 4d6d26537940 ("can: c_can: fix {rx,tx}_errors statistics")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://patch.msgid.link/20241122221650.633981-2-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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There is an approach made to implement gs_usb firmware/driver based on
Zephyr RTOS. It was found that USB stack of Zephyr RTOS overwrites USB
EP addresses, if they have different last 4 bytes in absence of other
endpoints.
For example in case of gs_usb candlelight firmware EP-IN is 0x81 and
EP-OUT 0x02. If there are no additional USB endpoints, Zephyr RTOS will
overwrite EP-OUT to 0x01. More information can be found in the
discussion with Zephyr RTOS USB stack maintainer here:
https://github.com/zephyrproject-rtos/zephyr/issues/67812
There are already two different gs_usb FW driver implementations based
on Zephyr RTOS:
1. https://github.com/CANnectivity/cannectivity
(by: https://github.com/henrikbrixandersen)
2. https://github.com/zephyrproject-rtos/zephyr/compare/main...KozhinovAlexander:zephyr:gs_usb
(by: https://github.com/KozhinovAlexander)
At the moment both Zephyr RTOS implementations use dummy USB endpoint,
to overcome described USB stack behavior from Zephyr itself. Since
Zephyr RTOS is intended to be used on microcontrollers with very
constrained amount of resources (ROM, RAM) and additional endpoint
requires memory, it is more convenient to update the gs_usb driver in
the Linux kernel.
To fix this problem, update the gs_usb driver from using hard coded
endpoint numbers to evaluate the endpoint descriptors and use the
endpoints provided there.
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Alexander Kozhinov <ak.alexander.kozhinov@gmail.com>
Link: https://patch.msgid.link/20241018212450.31746-1-ak.alexander.kozhinov@gmail.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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In commit 6e86a1543c37 ("can: dev: provide optional GPIO based
termination support") GPIO based termination support was added.
For no particular reason that patch uses gpiod_set_value() to set the
GPIO. This leads to the following warning, if the systems uses a
sleeping GPIO, i.e. behind an I2C port expander:
| WARNING: CPU: 0 PID: 379 at /drivers/gpio/gpiolib.c:3496 gpiod_set_value+0x50/0x6c
| CPU: 0 UID: 0 PID: 379 Comm: ip Not tainted 6.11.0-20241016-1 #1 823affae360cc91126e4d316d7a614a8bf86236c
Replace gpiod_set_value() by gpiod_set_value_cansleep() to allow the
use of sleeping GPIOs.
Cc: Nicolai Buchwitz <nb@tipi-net.de>
Cc: Lino Sanfilippo <l.sanfilippo@kunbus.com>
Cc: stable@vger.kernel.org
Reported-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Tested-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Fixes: 6e86a1543c37 ("can: dev: provide optional GPIO based termination support")
Link: https://patch.msgid.link/20241121-dev-fix-can_set_termination-v1-1-41fa6e29216d@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Current driver allows only packet size < 512B as SDP_LINK_CREDIT
register is set to default value.
This patch fixes this issue by configure the register with
maximum HW supported value to allow packet size > 512B.
Fixes: 2f7f33a09516 ("octeontx2-pf: Add representors for sdp MAC")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 2f4f9fe5bf5f ("bnxt_en: Support adding ntuple rules on RSS
contexts") added support for redirecting to an RSS context as an ntuple
rule action. However, it forgot to update the ETHTOOL_GRXCLSRULE
codepath. This caused `ethtool -n` to always report the action as
"Action: Direct to queue 0" which is wrong.
Fix by teaching bnxt driver to report the RSS context when applicable.
Fixes: 2f4f9fe5bf5f ("bnxt_en: Support adding ntuple rules on RSS contexts")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Link: https://patch.msgid.link/2e884ae39e08dc5123be7c170a6089cefe6a78f7.1732748253.git.dxu@dxuuu.xyz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Both ENETC PF and VF drivers share enetc_setup_tc_mqprio() to configure
MQPRIO. And enetc_setup_tc_mqprio() calls enetc_change_preemptible_tcs()
to configure preemptible TCs. However, only PF is able to configure
preemptible TCs. Because only PF has related registers, while VF does not
have these registers. So for VF, its hw->port pointer is NULL. Therefore,
VF will access an invalid pointer when accessing a non-existent register,
which will cause a crash issue. The simplified log is as follows.
root@ls1028ardb:~# tc qdisc add dev eno0vf0 parent root handle 100: \
mqprio num_tc 4 map 0 0 1 1 2 2 3 3 queues 1@0 1@1 1@2 1@3 hw 1
[ 187.290775] Unable to handle kernel paging request at virtual address 0000000000001f00
[ 187.424831] pc : enetc_mm_commit_preemptible_tcs+0x1c4/0x400
[ 187.430518] lr : enetc_mm_commit_preemptible_tcs+0x30c/0x400
[ 187.511140] Call trace:
[ 187.513588] enetc_mm_commit_preemptible_tcs+0x1c4/0x400
[ 187.518918] enetc_setup_tc_mqprio+0x180/0x214
[ 187.523374] enetc_vf_setup_tc+0x1c/0x30
[ 187.527306] mqprio_enable_offload+0x144/0x178
[ 187.531766] mqprio_init+0x3ec/0x668
[ 187.535351] qdisc_create+0x15c/0x488
[ 187.539023] tc_modify_qdisc+0x398/0x73c
[ 187.542958] rtnetlink_rcv_msg+0x128/0x378
[ 187.547064] netlink_rcv_skb+0x60/0x130
[ 187.550910] rtnetlink_rcv+0x18/0x24
[ 187.554492] netlink_unicast+0x300/0x36c
[ 187.558425] netlink_sendmsg+0x1a8/0x420
[ 187.606759] ---[ end trace 0000000000000000 ]---
In addition, some PFs also do not support configuring preemptible TCs,
such as eno1 and eno3 on LS1028A. It won't crash like it does for VFs,
but we should prevent these PFs from accessing these unimplemented
registers.
Fixes: 827145392a4a ("net: enetc: only commit preemptible TCs to hardware when MM TX is active")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Configuring TSN (Qbv, Qbu, PSFP) capabilities requires access to port
registers, which are available to the PSI but not the VSI.
Yet, the SI port capability register 0 (PSICAPR0), exposed to both PSIs
and VSIs, presents the same capabilities to the VF as to the PF, thus
leading the VF driver into thinking it can configure these features.
In the case of ENETC_SI_F_QBU, having it set in the VF leads to a crash:
root@ls1028ardb:~# tc qdisc add dev eno0vf0 parent root handle 100: \
mqprio num_tc 4 map 0 0 1 1 2 2 3 3 queues 1@0 1@1 1@2 1@3 hw 1
[ 187.290775] Unable to handle kernel paging request at virtual address 0000000000001f00
[ 187.424831] pc : enetc_mm_commit_preemptible_tcs+0x1c4/0x400
[ 187.430518] lr : enetc_mm_commit_preemptible_tcs+0x30c/0x400
[ 187.511140] Call trace:
[ 187.513588] enetc_mm_commit_preemptible_tcs+0x1c4/0x400
[ 187.518918] enetc_setup_tc_mqprio+0x180/0x214
[ 187.523374] enetc_vf_setup_tc+0x1c/0x30
[ 187.527306] mqprio_enable_offload+0x144/0x178
[ 187.531766] mqprio_init+0x3ec/0x668
[ 187.535351] qdisc_create+0x15c/0x488
[ 187.539023] tc_modify_qdisc+0x398/0x73c
[ 187.542958] rtnetlink_rcv_msg+0x128/0x378
[ 187.547064] netlink_rcv_skb+0x60/0x130
[ 187.550910] rtnetlink_rcv+0x18/0x24
[ 187.554492] netlink_unicast+0x300/0x36c
[ 187.558425] netlink_sendmsg+0x1a8/0x420
[ 187.606759] ---[ end trace 0000000000000000 ]---
while the other TSN features in the VF are harmless, because the
net_device_ops used for the VF driver do not expose entry points for
these other features.
These capability bits are in the process of being defeatured from the SI
registers. We should read them from the port capability register, where
they are also present, and which is naturally only exposed to the PF.
The change to blame (relevant for stable backports) is the one where
this started being a problem, aka when the kernel started to crash due
to the wrong capability seen by the VF driver.
Fixes: 827145392a4a ("net: enetc: only commit preemptible TCs to hardware when MM TX is active")
Reported-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Clean up the existing export namespace code along the same lines of
commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.
Scripted using
git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
do
awk -i inplace '
/^#define EXPORT_SYMBOL_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/^#define MODULE_IMPORT_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/MODULE_IMPORT_NS/ {
$0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
}
/EXPORT_SYMBOL_NS/ {
if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
$0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
$0 !~ /^my/) {
getline line;
gsub(/[[:space:]]*\\$/, "");
gsub(/[[:space:]]/, "", line);
$0 = $0 " " line;
}
$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
"\\1(\\2, \"\\3\")", "g");
}
}
{ print }' $file;
done
Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth.
Current release - regressions:
- rtnetlink: fix rtnl_dump_ifinfo() error path
- bluetooth: remove the redundant sco_conn_put
Previous releases - regressions:
- netlink: fix false positive warning in extack during dumps
- sched: sch_fq: don't follow the fast path if Tx is behind now
- ipv6: delete temporary address if mngtmpaddr is removed or
unmanaged
- tcp: fix use-after-free of nreq in reqsk_timer_handler().
- bluetooth: fix slab-use-after-free Read in set_powered_sync
- l2tp: fix warning in l2tp_exit_net found
- eth:
- bnxt_en: fix receive ring space parameters when XDP is active
- lan78xx: fix double free issue with interrupt buffer allocation
- tg3: set coherent DMA mask bits to 31 for BCM57766 chipsets
Previous releases - always broken:
- ipmr: fix tables suspicious RCU usage
- iucv: MSG_PEEK causes memory leak in iucv_sock_destruct()
- eth:
- octeontx2-af: fix low network performance
- stmmac: dwmac-socfpga: set RX watchdog interrupt as broken
- rtase: correct the speed for RTL907XD-V1
Misc:
- some documentation fixup"
* tag 'net-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (49 commits)
ipmr: fix build with clang and DEBUG_NET disabled.
Documentation: tls_offload: fix typos and grammar
Fix spelling mistake
ipmr: fix tables suspicious RCU usage
ip6mr: fix tables suspicious RCU usage
ipmr: add debug check for mr table cleanup
selftests: rds: move test.py to TEST_FILES
net_sched: sch_fq: don't follow the fast path if Tx is behind now
tcp: Fix use-after-free of nreq in reqsk_timer_handler().
net: phy: fix phy_ethtool_set_eee() incorrectly enabling LPI
net: Comment copy_from_sockptr() explaining its behaviour
rxrpc: Improve setsockopt() handling of malformed user input
llc: Improve setsockopt() handling of malformed user input
Bluetooth: SCO: remove the redundant sco_conn_put
Bluetooth: MGMT: Fix possible deadlocks
Bluetooth: MGMT: Fix slab-use-after-free Read in set_powered_sync
bnxt_en: Unregister PTP during PCI shutdown and suspend
bnxt_en: Refactor bnxt_ptp_init()
bnxt_en: Fix receive ring space parameters when XDP is active
bnxt_en: Fix queue start to update vnic RSS table
...
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When phy_ethtool_set_eee_noneg() detects a change in the LPI
parameters, it attempts to update phylib state and trigger the link
to cycle so the MAC sees the updated parameters.
However, in doing so, it sets phydev->enable_tx_lpi depending on
whether the EEE configuration allows the MAC to generate LPI without
taking into account the result of negotiation.
This can be demonstrated with a 1000base-T FD interface by:
# ethtool --set-eee eno0 advertise 8 # cause EEE to be not negotiated
# ethtool --set-eee eno0 tx-lpi off
# ethtool --set-eee eno0 tx-lpi on
This results in being true, despite EEE not having been negotiated and:
# ethtool --show-eee eno0
EEE status: enabled - inactive
Tx LPI: 250 (us)
Supported EEE link modes: 100baseT/Full
1000baseT/Full
Advertised EEE link modes: 100baseT/Full
1000baseT/Full
Fix this by keeping track of whether EEE was negotiated via a new
eee_active member in struct phy_device, and include this state in
the decision whether phydev->enable_tx_lpi should be set.
Fixes: 3e43b903da04 ("net: phy: Immediately call adjust_link if only tx_lpi_enabled changes")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tErSe-005RhB-2R@rmk-PC.armlinux.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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If we go through the PCI shutdown or suspend path, we shutdown the
NIC but PTP remains registered. If the kernel continues to run for
a little bit, the periodic PTP .do_aux_work() function may be called
and it will read the PHC from the BAR register. Since the device
has already been disabled, it will cause a PCIe completion timeout.
Fix it by calling bnxt_ptp_clear() in the PCI shutdown/suspend
handlers. bnxt_ptp_clear() will unregister from PTP and
.do_aux_work() will be canceled.
In bnxt_resume(), we need to re-initialize PTP.
Fixes: a521c8a01d26 ("bnxt_en: Move bnxt_ptp_init() from bnxt_open() back to bnxt_init_one()")
Cc: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Instead of passing the 2nd parameter phc_cfg to bnxt_ptp_init().
Store it in bp->ptp_cfg so that the caller doesn't need to know what
the value should be.
In the next patch, we'll need to call bnxt_ptp_init() in bnxt_resume()
and this will make it easier.
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The MTU setting at the time an XDP multi-buffer is attached
determines whether the aggregation ring will be used and the
rx_skb_func handler. This is done in bnxt_set_rx_skb_mode().
If the MTU is later changed, the aggregation ring setting may need
to be changed and it may become out-of-sync with the settings
initially done in bnxt_set_rx_skb_mode(). This may result in
random memory corruption and crashes as the HW may DMA data larger
than the allocated buffer size, such as:
BUG: kernel NULL pointer dereference, address: 00000000000003c0
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 17 PID: 0 Comm: swapper/17 Kdump: loaded Tainted: G S OE 6.1.0-226bf9805506 #1
Hardware name: Wiwynn Delta Lake PVT BZA.02601.0150/Delta Lake-Class1, BIOS F0E_3A12 08/26/2021
RIP: 0010:bnxt_rx_pkt+0xe97/0x1ae0 [bnxt_en]
Code: 8b 95 70 ff ff ff 4c 8b 9d 48 ff ff ff 66 41 89 87 b4 00 00 00 e9 0b f7 ff ff 0f b7 43 0a 49 8b 95 a8 04 00 00 25 ff 0f 00 00 <0f> b7 14 42 48 c1 e2 06 49 03 95 a0 04 00 00 0f b6 42 33f
RSP: 0018:ffffa19f40cc0d18 EFLAGS: 00010202
RAX: 00000000000001e0 RBX: ffff8e2c805c6100 RCX: 00000000000007ff
RDX: 0000000000000000 RSI: ffff8e2c271ab990 RDI: ffff8e2c84f12380
RBP: ffffa19f40cc0e48 R08: 000000000001000d R09: 974ea2fcddfa4cbf
R10: 0000000000000000 R11: ffffa19f40cc0ff8 R12: ffff8e2c94b58980
R13: ffff8e2c952d6600 R14: 0000000000000016 R15: ffff8e2c271ab990
FS: 0000000000000000(0000) GS:ffff8e3b3f840000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000003c0 CR3: 0000000e8580a004 CR4: 00000000007706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
<IRQ>
__bnxt_poll_work+0x1c2/0x3e0 [bnxt_en]
To address the issue, we now call bnxt_set_rx_skb_mode() within
bnxt_change_mtu() to properly set the AGG rings configuration and
update rx_skb_func based on the new MTU value.
Additionally, BNXT_FLAG_NO_AGG_RINGS is cleared at the beginning of
bnxt_set_rx_skb_mode() to make sure it gets set or cleared based on
the current MTU.
Fixes: 08450ea98ae9 ("bnxt_en: Fix max_mtu setting for multi-buf XDP")
Co-developed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Shravya KN <shravya.k-n@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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HWRM_RING_FREE followed by a HWRM_RING_ALLOC is not guaranteed to
have the same FW ring ID as before. So we must reinitialize the
RSS table with the correct ring IDs. Otherwise, traffic may not
resume properly if the restarted ring ID is stale. Since this
feature is only supported on P5_PLUS chips, we call
bnxt_vnic_set_rss_p5() to update the HW RSS table.
Fixes: 2d694c27d32e ("bnxt_en: implement netdev_queue_mgmt_ops")
Cc: David Wei <dw@davidwei.uk>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Use the return value from bnxt_get_media() to determine the port and
link modes. bnxt_get_media() returns the proper BNXT_MEDIA_KR when
the PHY is backplane. This will correct the ethtool settings for
backplane devices.
Fixes: 5d4e1bf60664 ("bnxt_en: extend media types to supported and autoneg modes")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Shravya KN <shravya.k-n@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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After successful PCIe AER recovery, FW will reset all resource
reservations. If it is IF_UP, the driver will call bnxt_open() and
all resources will be reserved again. It it is IF_DOWN, we should
call bnxt_reserve_rings() so that we can reserve resources including
RoCE resources to allow RoCE to resume after AER. Without this
patch, RoCE fails to resume in this IF_DOWN scenario.
Later, if it becomes IF_UP, bnxt_open() will see that resources have
been reserved and will not reserve again.
Fixes: fb1e6e562b37 ("bnxt_en: Fix AER recovery.")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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During initialization, the AF driver resets all blocks. The RPM (MAC)
block and NIX block operate on a credit-based model. When the NIX block
resets during active traffic flow, it doesn't release credits to the RPM
block. This causes the RPM FIFO to overflow, leading to receive traffic
struck.
To address this issue, the patch introduces the following changes:
1. Stop receiving traffic at the MAC level during AF driver
initialization.
2. Perform an X2P reset (prevents RXFIFO of all LMACS from pushing data)
3. Reset the NIX block.
4. Clear the X2P reset and re-enable receiving traffic.
Fixes: 54d557815e15 ("octeontx2-af: Reset all RVU blocks")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The corrected words register(FCFECX_VL0_CCW_LO)/Uncorrected words
register (FCFECX_VL0_NCCW_LO) of FCFEC counter has different LMAC
offset which needs to be accessed differently.
Fixes: 84ad3642115d ("octeontx2-af: Add FEC stats for RPM/RPM_USX block")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The earlier patch sets the 'Stats control register' for RPM
receive/transmit statistics instead of RSFEC statistics,
causing the driver to return stale FEC counters.
Fixes: 84ad3642115d ("octeontx2-af: Add FEC stats for RPM/RPM_USX block")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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