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While performing RSS based on IPv4, packets with
IPv4 options are not being considered. Adding changes
to match both plain IPv4 and IPv4 with option header.
Fixes: 41a7aa7b800d ("octeontx2-af: NIX Rx flowkey configuration for RSS")
Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While performing RSS based on IPv6, extension ltype
is not being considered. This will be problem for
fragmented packets or packets with extension header.
Adding changes to match IPv6 ext header along with IPv6
ltype.
Fixes: 41a7aa7b800d ("octeontx2-af: NIX Rx flowkey configuration for RSS")
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Checksum and length checks are not enabled for IPv4 header with
options and IPv6 with extension headers.
To fix this a change in enum npc_kpu_lc_ltype is required which will
allow adjustment of LTYPE_MASK to detect all types of IP headers.
Fixes: 21e6699e5cd6 ("octeontx2-af: Add NPC KPU profile")
Signed-off-by: Michal Mazur <mmazur2@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes CPT_LF_ALLOC mailbox error due to
incompatible mailbox message format. Specifically, it
corrects the `blkaddr` field type from `int` to `u8`.
Fixes: de2854c87c64 ("octeontx2-af: Mailbox changes for 98xx CPT block")
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace slot id with global CPT lf id on reg read/write as
CPTPF/VF driver would send slot number instead of global
lf id in the reg offset. And also update the mailbox response
with the global lf's register offset.
Fixes: ae454086e3c2 ("octeontx2-af: add mailbox interface for CPT")
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To have enough space to write all possible sprintf() args. Currently
'name' size is 16, but the first '%s' specifier may already need at
least 16 characters, since 'bnad->netdev->name' is used there.
For '%d' specifiers, assume that they require:
* 1 char for 'tx_id + tx_info->tcb[i]->id' sum, BNAD_MAX_TXQ_PER_TX is 8
* 2 chars for 'rx_id + rx_info->rx_ctrl[i].ccb->id', BNAD_MAX_RXP_PER_RX
is 16
And replace sprintf with snprintf.
Detected using the static analysis tool - Svace.
Fixes: 8b230ed8ec96 ("bna: Brocade 10Gb Ethernet device driver")
Signed-off-by: Alexey Kodanev <aleksei.kodanev@bell-sw.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove wrong EIO to EGAIN conversion and pass all errors as is.
After commit 230f3d53a547 ("i40e: remove i40e_status"), which should only
replace F/W specific error codes with Linux kernel generic, all EIO errors
suddenly started to be converted into EAGAIN which leads nvmupdate to retry
until it timeouts and sometimes fails after more than 20 minutes in the
middle of NVM update, so NVM becomes corrupted.
The bug affects users only at the time when they try to update NVM, and
only F/W versions that generate errors while nvmupdate. For example, X710DA2
with 0x8000ECB7 F/W is affected, but there are probably more...
Command for reproduction is just NVM update:
./nvmupdate64
In the log instead of:
i40e_nvmupd_exec_aq err I40E_ERR_ADMIN_QUEUE_ERROR aq_err I40E_AQ_RC_ENOMEM)
appears:
i40e_nvmupd_exec_aq err -EIO aq_err I40E_AQ_RC_ENOMEM
i40e: eeprom check failed (-5), Tx/Rx traffic disabled
The problematic code did silently convert EIO into EAGAIN which forced
nvmupdate to ignore EAGAIN error and retry the same operation until timeout.
That's why NVM update takes 20+ minutes to finish with the fail in the end.
Fixes: 230f3d53a547 ("i40e: remove i40e_status")
Co-developed-by: Kelvin Kang <kelvin.kang@intel.com>
Signed-off-by: Kelvin Kang <kelvin.kang@intel.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240710224455.188502-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Expose the sysfs files for the IRQs that the mlx5 PCI SFs are using.
These entries are similar to PCI PFs and VFs in 'msi_irqs' directory.
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
v8-v9:
- add Przemek RB
v6->v7:
- remove not needed changes to mlx5 sfnum SF sysfs
v5->v6:
- fail IRQ creation in case auxiliary_device_sysfs_irq_add() failed
(Parav and Przemek)
v2->v3:
- fix mlx5 sfnum SF sysfs
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Cross-merge networking fixes after downstream PR.
Conflicts:
net/sched/act_ct.c
26488172b029 ("net/sched: Fix UAF when resolving a clash")
3abbd7ed8b76 ("act_ct: prepare for stolen verdict coming from conntrack and nat engine")
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since the kernel's 'ethtool_keee' structure is in use, the internal
'eee_advert' field becomes pointless and can be removed.
This patch comes to clean up this redundant code.
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Since the port representors are added one by one there is no need to do
eswitch rebuild. Each port representor is detached and attached in VF
reset path.
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.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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Add support for driver-specific devlink local_forwarding param.
Supported values are "enabled", "disabled" and "prioritized".
Default configuration is set to "enabled".
Add documentation in networking/devlink/ice.rst.
In previous generations of Intel NICs the transmit scheduler was only
limited by PCIe bandwidth when scheduling/assigning hairpin-bandwidth
between VFs. Changes to E810 HW design introduced scheduler limitation,
so that available hairpin-bandwidth is bound to external port speed.
In order to address this limitation and enable NFV services such as
"service chaining" a knob to adjust the scheduler config was created.
Driver can send a configuration message to the FW over admin queue and
internal FW logic will reconfigure HW to prioritize and add more BW to
VF to VF traffic. An end result, for example, 10G port will no longer
limit hairpin-bandwidth to 10G and much higher speeds can be achieved.
Devlink local_forwarding param set to "prioritized" enables higher
hairpin-bandwitdh on related PFs. Configuration is applicable only to
8x10G and 4x25G cards.
Changing local_forwarding configuration will trigger CORER reset in
order to take effect.
Example command to change current value:
devlink dev param set pci/0000:b2:00.3 name local_forwarding \
value prioritized \
cmode runtime
Co-developed-by: Michal Wilczynski <michal.wilczynski@intel.com>
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Pawel Kaminski <pawel.kaminski@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Correct name of i40e_addr_to_hkey() in it's kdoc.
kernel-doc -none reports:
drivers/net/ethernet/intel/i40e/i40e.h:739: warning: expecting prototype for i40e_mac_to_hkey(). Prototype was for i40e_addr_to_hkey() instead
Signed-off-by: Simon Horman <horms@kernel.org>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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We are moving away from the Sourceforge email address. Rather than
removing or updating the email for the affected entries, remove the
MODULE_AUTHOR altogether as its usage is incorrect [1].
Link: https://lore.kernel.org/netdev/20200626115236.7f36d379@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/ [1]
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Alexander Lobakin <aleksander.lobakin@intel.com> # libeth, libie
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Track the number of rules and recipes added to switch. Add a tracepoint to
ice_aq_sw_rules(), which shows both rule and recipe count. This information
can be helpful when designing a set of rules to program to the hardware, as
it shows where the practical limit is. Actual limits are known (64 recipes,
32k rules), but it's hard to translate these values to how many rules the
*user* can actually create, because of extra metadata being implicitly
added, and recipe/rule chaining. Chaining combines several recipes/rules to
create a larger recipe/rule, so one large rule added by the user might
actually consume multiple rules from hardware perspective.
Rule counter is simply incremented/decremented in ice_aq_sw_rules(), since
all rules are added or removed via it.
Counting recipes is harder, as recipes can't be removed (only overwritten).
Recipes added via ice_aq_add_recipe() could end up being unused, when
there is an error in later stages of rule creation. Instead, track the
allocation and freeing of recipes, which should reflect the actual usage of
recipes (if something fails after recipe(s) were created, caller should
free them). Also, a number of recipes are loaded from NVM by default -
initialize the recipe counter with the number of these recipes on switch
initialization.
Example configuration:
cd /sys/kernel/tracing
echo function > current_tracer
echo ice_aq_sw_rules > set_ftrace_filter
echo ice_aq_sw_rules > set_event
echo 1 > tracing_on
cat trace
Example output:
tc-4097 [069] ...1. 787.595536: ice_aq_sw_rules <-ice_rem_adv_rule
tc-4097 [069] ..... 787.595705: ice_aq_sw_rules: rules=9 recipes=15
tc-4098 [057] ...1. 787.652033: ice_aq_sw_rules <-ice_add_adv_rule
tc-4098 [057] ..... 787.652201: ice_aq_sw_rules: rules=10 recipes=16
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.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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Remove several members of struct ice_sw_recipe and struct
ice_prot_lkup_ext. Remove struct ice_recp_grp_entry and struct
ice_pref_recipe_group, since they are now unused as well.
All of the deleted members were only written to and never read, so it's
pointless to keep them.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Currently when creating switch recipes, switch ID is always added as the
first word in every recipe. There are only 5 words in a recipe, so one
word is always wasted. This is also true for the last recipe, which stores
result indexes (in case of chain recipes). Therefore the maximum usable
length of a chain recipe is 4 * 4 = 16 words. 4 words in a recipe, 4
recipes that can be chained (using a 5th one for result indexes).
Current max size chained recipe:
0: smmmm
1: smmmm
2: smmmm
3: smmmm
4: srrrr
Where:
s - switch ID
m - regular match (e.g. ipv4 src addr, udp dst port, etc.)
r - result index
Switch ID does not actually need to be present in every recipe, only in one
of them (in case of chained recipe). This frees up to 8 extra words:
3 from recipes in the middle (because first recipe still needs to have
switch ID), and 5 from one extra recipe (because now the last recipe also
does not have switch ID, so it can chain 1 more recipe).
Max size chained recipe after changes:
0: smmmm
1: Mmmmm
2: Mmmmm
3: Mmmmm
4: MMMMM
5: Rrrrr
Extra usable words available after this change are highlighted with capital
letters.
Changing how switch ID is added is not straightforward, because it's not a
regular lookup. Its FV index and mask can't be determined based on protocol
+ offset pair read from package and instead need to be added manually.
Additionally, change how result indexes are added. Currently they are
always inserted in a new recipe at the end. Example for 13 words, (with
above optimization, switch ID being one of the words):
0: smmmm
1: mmmmm
2: mmmxx
3: rrrxx
Where:
x - unused word
In this and some other cases, the result indexes can be moved just after
last matches because there are unused words, saving one recipe. Example
for 13 words after both optimizations:
0: smmmm
1: mmmmm
2: mmmrr
Note how one less result index is needed in this case, because the last
recipe does not need to "link" to itself.
There are cases when adding an additional recipe for result indexes cannot
be avoided. In that cases result indexes are all put in the last recipe.
Example for 14 words after both optimizations:
0: smmmm
1: mmmmm
2: mmmmx
3: rrrxx
With these two changes, recipes/rules are more space efficient, allowing
more to be created in total.
Co-developed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Remove root_buf from recipe struct. Its only usage was in ice_find_recp(),
where if recipe had an inverse action, it was skipped, but actually the
driver never adds inverse actions, so effectively it was pointless.
Without root_buf, the recipe data element in ice_add_sw_recipe() does
not need to be persistent and can also be automatically deallocated with
__free, which nicely simplifies unroll.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Remove unnecessary size checks when copying bitmaps in ice_add_sw_recipe()
and replace them with compile time assert. Check if the bitmaps are equal
size, as they are copied both ways.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Co-developed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The content of the first read recipe is used as a template when adding a
recipe. It isn't needed - only prune index is directly set from there. Set
it in the code instead. Also, now there's no need to set rid and lookup
indexes to 0, as the whole recipe buffer is initialized to 0.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Remove field_off as it's never used.
Remove done bitmap, as its value is only checked and never assigned.
Reusing sub-recipes while creating new root recipes is currently not
supported in the driver.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The amount of TX space in the hardware buffer is tracked in the tx_space
variable. The initial value is currently only set during driver probing.
After closing the interface and reopening it the tx_space variable has
the last value it had before close. If it is smaller than the size of
the first send packet after reopeing the interface the queue will be
stopped. The queue is woken up after receiving a TX interrupt but this
will never happen since we did not send anything.
This commit moves the initialization of the tx_space variable to the
ks8851_net_open function right before starting the TX queue. Also query
the value from the hardware instead of using a hard coded value.
Only the SPI chip variant is affected by this issue because only this
driver variant actually depends on the tx_space variable in the xmit
function.
Fixes: 3dc5d4454545 ("net: ks8851: Fix TX stall caused by TX buffer overrun")
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240709195845.9089-1-rwahl@gmx.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The below commit introduced a warning message when phy state is not in
the states: PHY_HALTED, PHY_READY, and PHY_UP.
commit 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
mtk-star-emac doesn't need mdiobus suspend/resume. To fix the warning
message during resume, indicate the phy resume/suspend is managed by the
mac when probing.
Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
Signed-off-by: Jian Hui Lee <jianhui.lee@canonical.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240708065210.4178980-1-jianhui.lee@canonical.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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To debug link issues in the field, serdes Tx/Rx equalizer values
help to determine the health of serdes lane.
Extend 'ethtool -d' option to dump serdes Tx/Rx equalizer.
The following list of equalizer param is supported
a. rx_equalization_pre2
b. rx_equalization_pre1
c. rx_equalization_post1
d. rx_equalization_bflf
e. rx_equalization_bfhf
f. rx_equalization_drate
g. tx_equalization_pre1
h. tx_equalization_pre3
i. tx_equalization_atten
j. tx_equalization_post1
k. tx_equalization_pre2
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Anil Samal <anil.samal@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>
Link: https://patch.msgid.link/20240709202951.2103115-4-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To debug link issues in the field, it is paramount to
dump fec corrected/uncorrected block counts from firmware.
Firmware requires PCS quad number and PCS port number to
read FEC statistics. Current driver implementation does
not maintain above physical properties of a port.
Add new driver API to derive physical properties of an input
port.These properties include PCS quad number, PCS port number,
serdes lane count, primary serdes lane number.
Extend ethtool option '--show-fec' to support fec statistics.
The IEEE standard mandates two sets of counters:
- 30.5.1.1.17 aFECCorrectedBlocks
- 30.5.1.1.18 aFECUncorrectableBlocks
Standard defines above statistics per lane but current
implementation supports total FEC statistics per port
i.e. sum of all lane per port. Find sample output below
FEC parameters for ens21f0np0:
Supported/Configured FEC encodings: Auto RS BaseR
Active FEC encoding: RS
Statistics:
corrected_blocks: 0
uncorrectable_blocks: 0
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Anil Samal <anil.samal@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>
Link: https://patch.msgid.link/20240709202951.2103115-3-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Current driver implementation for Sideband Queue supports a
fixed flag (ICE_AQ_FLAG_RD). To retrieve FEC statistics from
firmware, Sideband Queue command is used with a different flag.
Extend API for Sideband Queue command to use 'flags' as input
argument.
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Anil Samal <anil.samal@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>
Link: https://patch.msgid.link/20240709202951.2103115-2-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 861e8086029e ("e1000e: move force SMBUS from enable ulp function
to avoid PHY loss issue") resolved a PHY access loss during suspend on
Meteor Lake consumer platforms, but it affected corporate systems
incorrectly.
A better fix, working for both consumer and corporate systems, was
proposed in commit bfd546a552e1 ("e1000e: move force SMBUS near the end
of enable_ulp function"). However, it introduced a regression on older
devices, such as [8086:15B8], [8086:15F9], [8086:15BE].
This patch aims to fix the secondary regression, by limiting the scope of
the changes to Meteor Lake platforms only.
Fixes: bfd546a552e1 ("e1000e: move force SMBUS near the end of enable_ulp function")
Reported-by: Todd Brandt <todd.e.brandt@intel.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218940
Reported-by: Dieter Mummenschanz <dmummenschanz@web.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218936
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240709203123.2103296-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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idpf uses Page Pool for data buffers with hardcoded buffer lengths of
4k for "classic" buffers and 2k for "short" ones. This is not flexible
and does not ensure optimal memory usage. Why would you need 4k buffers
when the MTU is 1500?
Use libeth for the data buffers and don't hardcode any buffer sizes. Let
them be calculated from the MTU for "classics" and then divide the
truesize by 2 for "short" ones. The memory usage is now greatly reduced
and 2 buffer queues starts make sense: on frames <= 1024, you'll recycle
(and resync) a page only after 4 HW writes rather than two.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Currently, idpf uses the following model for the header buffers:
* buffers are allocated via dma_alloc_coherent();
* when receiving, napi_alloc_skb() is called and then the header is
copied to the newly allocated linear part.
This is far from optimal as DMA coherent zone is slow on many systems
and memcpy() neutralizes the idea and benefits of the header split. Not
speaking of that XDP can't be run on DMA coherent buffers, but at the
same time the idea of allocating an skb to run XDP program is ill.
Instead, use libeth to create page_pools for the header buffers, allocate
them dynamically and then build an skb via napi_build_skb() around them
with no memory copy. With one exception...
When you enable header split, you expect you'll always have a separate
header buffer, so that you could reserve headroom and tailroom only
there and then use full buffers for the data. For example, this is how
TCP zerocopy works -- you have to have the payload aligned to PAGE_SIZE.
The current hardware running idpf does *not* guarantee that you'll
always have headers placed separately. For example, on my setup, even
ICMP packets are written as one piece to the data buffers. You can't
build a valid skb around a data buffer in this case.
To not complicate things and not lose TCP zerocopy etc., when such thing
happens, use the empty header buffer and pull either full frame (if it's
short) or the Ethernet header there and build an skb around it. GRO
layer will pull more from the data buffer later. This W/A will hopefully
be removed one day.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Unlike previous generations, idpf requires more buffer types for optimal
performance. This includes: header buffers, short buffers, and
no-overhead buffers (w/o headroom and tailroom, for TCP zerocopy when
the header split is enabled).
Introduce libeth Rx buffer type and calculate page_pool params
accordingly. All the HW-related details like buffer alignment are still
accounted. For the header buffers, pick 256 bytes as in most places in
the kernel (have you ever seen frames with bigger headers?).
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Page Pool Ethtool stats are deprecated since the Netlink Page Pool
interface introduction.
idpf receives big changes in Rx buffer management, including &page_pool
layout, so keeping these deprecated stats does only harm, not speaking
of that CONFIG_IDPF selects CONFIG_PAGE_POOL_STATS unconditionally,
while the latter is often turned off for better performance.
Remove all the references to PP stats from the Ethtool code. The stats
are still available in their full via the generic Netlink interface.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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idpf's in-kernel parsed ptype structure is almost identical to the one
used in the previous Intel drivers, which means it can be converted to
use libeth's definitions and even helpers. The only difference is that
it doesn't use a constant table (libie), rather than one obtained from
the device.
Remove the driver counterpart and use libeth's helpers for hashes and
checksums. This slightly optimizes skb fields processing due to faster
checks. Also don't define big static array of ptypes in &idpf_vport --
allocate them dynamically. The pointer to it is anyway cached in
&idpf_rx_queue.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Currently, all HW supporting idpf supports the singleq model, but none
of it advertises it by default, as splitq is supported and preferred
for multiple reasons. Still, this almost dead code often times adds
hotpath branches and redundant cacheline accesses.
While it can't currently be removed, add CONFIG_IDPF_SINGLEQ and build
the singleq code only when it's enabled manually. This corresponds to
-10 Kb of object code size and a good bunch of hotpath checks.
idpf_is_queue_model_split() works as a gate and compiles out to `true`
when the config option is disabled.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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It makes no sense to have a second &net_device_ops struct (800 bytes of
rodata) with only one difference in .ndo_start_xmit, which can easily
be just one `if`. This `if` is a drop in the ocean and you won't see
any difference.
Define unified idpf_xmit_start(). The preparation for sending is the
same, just call either idpf_tx_splitq_frame() or idpf_tx_singleq_frame()
depending on the active model to actually map and send the skb.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Now that the queue and queue vector structures are separated and laid
out optimally, group the fields as read-mostly, read-write, and cold
cachelines and add size assertions to make sure new features won't push
something out of its place and provoke perf regression.
Despite looking innocent, this gives up to 2% of perf bump on Rx.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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With CONFIG_MAXSMP, sizeof(cpumask_t) is 1 Kb. The queue vector
structure has them embedded, which means 1 additional Kb of not
really hotpath data.
We have cpumask_var_t, which is either an embedded cpumask or a pointer
for allocating it dynamically when it's big. Use it instead of plain
cpumasks and put &idpf_q_vector on a good diet.
Also remove redundant pointer to the interrupt name from the structure.
request_irq() saves it and free_irq() returns it on deinit, so that you
can free the memory.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Currently, sizeof(struct idpf_queue) is 32 Kb.
This is due to the 12-bit hashtable declaration at the end of the queue.
This HT is needed only for Tx queues when the flow scheduling mode is
enabled. But &idpf_queue is unified for all of the queue types,
provoking excessive memory usage.
The unified structure in general makes the code less effective via
suboptimal fields placement. You can't avoid that unless you make unions
each 2 fields. Even then, different field alignment etc., doesn't allow
you to optimize things to the limit.
Split &idpf_queue into 4 structures corresponding to the queue types:
RQ (Rx queue), SQ (Tx queue), FQ (buffer queue), and CQ (completion
queue). Place only needed fields there and shortcuts handy for hotpath.
Allocate the abovementioned hashtable dynamically and only when needed,
keeping &idpf_tx_queue relatively short (192 bytes, same as Rx). This HT
is used only for OOO completions, which aren't really hotpath anyway.
Note that this change must be done atomically, otherwise it's really
easy to get lost and miss something.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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In C, we have structures and unions.
Casting `void *` via macros is not only error-prone, but also looks
confusing and awful in general.
In preparation for splitting the queue structs, replace it with a
union and direct array dereferences.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The number of the currently released descriptor is never incremented
which results in the same skb being released multiple times.
Fixes: 504d4721ee8e ("MIPS: Lantiq: Add ethernet driver")
Reported-by: Joe Perches <joe@perches.com>
Closes: https://lore.kernel.org/all/fc1bf93d92bb5b2f99c6c62745507cc22f3a7b2d.camel@perches.com/
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240708205826.5176-1-olek2@wp.pl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use the existing {low,upp}er_32_bits() helpers instead of defining
custom variants.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/319d4a5313ac75f7bbbb6b230b6802b18075c3e0.1720430602.git.geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It is theoretically possible to return bogus uninitialized values from
mlx5_tc_ct_entry_replace_rules, even though in practice this will never
be the case as the flow rule will be part of at least the regular ct
table or the ct nat table, if not both.
But to reduce noise, initialize err to 0.
Fixes: 49d37d05f216 ("net/mlx5: CT: Separate CT and CT-NAT tuple entries")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20240708080025.1593555-11-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When the rx_hds_nodata_packets/bytes counters were added, the aggregate
counters were omitted. This patch adds them.
Fixes: e95c5b9e8912 ("net/mlx5e: SHAMPO, Add header-only ethtool counters for header data split")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20240708080025.1593555-10-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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No need to expose definer get/put functions as part of
SW Steering API - they are internal functions.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20240708080025.1593555-9-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The driver triggers a "Secondary Bus Reset" (SBR) by calling
__pci_reset_function_locked() which asserts the SBR bit in the "Bridge
Control Register" in the configuration space of the upstream bridge for
2ms. This is done without locking the configuration space of the
upstream bridge port, allowing user space to access it concurrently.
Linux 6.11 will start warning about such unlocked resets [1][2]:
pcieport 0000:00:01.0: unlocked secondary bus reset via: pci_reset_bus_function+0x51c/0x6a0
Avoid the warning and the concurrent access by locking the configuration
space of the upstream bridge prior to the reset and unlocking it
afterwards.
[1] https://lore.kernel.org/all/171711746953.1628941.4692125082286867825.stgit@dwillia2-xfh.jf.intel.com/
[2] https://lore.kernel.org/all/20240531213150.GA610983@bhelgaas/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/9937b0afdb50f2f2825945393c94c093c04a5897.1720447210.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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registration
Commit 31a0fa0019b0 ("thermal/debugfs: Pass cooling device state to
thermal_debug_cdev_add()") changed the thermal core to read the current
state of the cooling device as part of the cooling device's
registration. This is incompatible with the current implementation of
the cooling device operations in mlxsw, leading to initialization
failure with errors such as:
mlxsw_spectrum 0000:01:00.0: Failed to register cooling device
mlxsw_spectrum 0000:01:00.0: cannot register bus device
The reason for the failure is that when the get current state operation
is invoked the driver tries to derive the index of the cooling device by
walking a per thermal zone array and looking for the matching cooling
device pointer. However, the pointer is returned from the registration
function and therefore only set in the array after the registration.
The issue was later fixed by commit 1af89dedc8a5 ("thermal: core: Do not
fail cdev registration because of invalid initial state") by not failing
the registration of the cooling device if it cannot report a valid
current state during registration, although drivers are responsible for
ensuring that this will not happen.
Therefore, make sure the driver is able to report a valid current state
for the cooling device during registration by passing to the
registration function a per cooling device private data that already has
the cooling device index populated.
While at it, call thermal_cooling_device_unregister() unconditionally
since the function returns immediately if the cooling device pointer is
NULL.
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/c823c4678b6b7afb902c35b3551c81a053afd110.1720447210.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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A forgotten or buggy variable initialization can cause out-of-bounds access
to a register or other item array field. For an overflow, such access would
mangle adjacent parts of the register payload. For an underflow, due to all
variables being unsigned, the access would likely trample unrelated memory.
Since neither is correct, replace these accesses with accesses at the index
of 0, and warn about the issue.
Suggested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/b988fb265c2f6c1206fe12d5bfdcfa188b7672d1.1720447210.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The commit 6533e558c650 ("i40e: Fix reset path while removing
the driver") introduced a new PF state "__I40E_IN_REMOVE" to block
modifying the XDP program while the driver is being removed.
Unfortunately, such a change is useful only if the ".ndo_bpf()"
callback was called out of the rmmod context because unloading the
existing XDP program is also a part of driver removing procedure.
In other words, from the rmmod context the driver is expected to
unload the XDP program without reporting any errors. Otherwise,
the kernel warning with callstack is printed out to dmesg.
Example failing scenario:
1. Load the i40e driver.
2. Load the XDP program.
3. Unload the i40e driver (using "rmmod" command).
The example kernel warning log:
[ +0.004646] WARNING: CPU: 94 PID: 10395 at net/core/dev.c:9290 unregister_netdevice_many_notify+0x7a9/0x870
[...]
[ +0.010959] RIP: 0010:unregister_netdevice_many_notify+0x7a9/0x870
[...]
[ +0.002726] Call Trace:
[ +0.002457] <TASK>
[ +0.002119] ? __warn+0x80/0x120
[ +0.003245] ? unregister_netdevice_many_notify+0x7a9/0x870
[ +0.005586] ? report_bug+0x164/0x190
[ +0.003678] ? handle_bug+0x3c/0x80
[ +0.003503] ? exc_invalid_op+0x17/0x70
[ +0.003846] ? asm_exc_invalid_op+0x1a/0x20
[ +0.004200] ? unregister_netdevice_many_notify+0x7a9/0x870
[ +0.005579] ? unregister_netdevice_many_notify+0x3cc/0x870
[ +0.005586] unregister_netdevice_queue+0xf7/0x140
[ +0.004806] unregister_netdev+0x1c/0x30
[ +0.003933] i40e_vsi_release+0x87/0x2f0 [i40e]
[ +0.004604] i40e_remove+0x1a1/0x420 [i40e]
[ +0.004220] pci_device_remove+0x3f/0xb0
[ +0.003943] device_release_driver_internal+0x19f/0x200
[ +0.005243] driver_detach+0x48/0x90
[ +0.003586] bus_remove_driver+0x6d/0xf0
[ +0.003939] pci_unregister_driver+0x2e/0xb0
[ +0.004278] i40e_exit_module+0x10/0x5f0 [i40e]
[ +0.004570] __do_sys_delete_module.isra.0+0x197/0x310
[ +0.005153] do_syscall_64+0x85/0x170
[ +0.003684] ? syscall_exit_to_user_mode+0x69/0x220
[ +0.004886] ? do_syscall_64+0x95/0x170
[ +0.003851] ? exc_page_fault+0x7e/0x180
[ +0.003932] entry_SYSCALL_64_after_hwframe+0x71/0x79
[ +0.005064] RIP: 0033:0x7f59dc9347cb
[ +0.003648] Code: 73 01 c3 48 8b 0d 65 16 0c 00 f7 d8 64 89 01 48 83
c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 35 16 0c 00 f7 d8 64 89 01 48
[ +0.018753] RSP: 002b:00007ffffac99048 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[ +0.007577] RAX: ffffffffffffffda RBX: 0000559b9bb2f6e0 RCX: 00007f59dc9347cb
[ +0.007140] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000559b9bb2f748
[ +0.007146] RBP: 00007ffffac99070 R08: 1999999999999999 R09: 0000000000000000
[ +0.007133] R10: 00007f59dc9a5ac0 R11: 0000000000000206 R12: 0000000000000000
[ +0.007141] R13: 00007ffffac992d8 R14: 0000559b9bb2f6e0 R15: 0000000000000000
[ +0.007151] </TASK>
[ +0.002204] ---[ end trace 0000000000000000 ]---
Fix this by checking if the XDP program is being loaded or unloaded.
Then, block only loading a new program while "__I40E_IN_REMOVE" is set.
Also, move testing "__I40E_IN_REMOVE" flag to the beginning of XDP_SETUP
callback to avoid unnecessary operations and checks.
Fixes: 6533e558c650 ("i40e: Fix reset path while removing the driver")
Signed-off-by: Michal Kubiak <michal.kubiak@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20240708230750.625986-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add missing dependency on NET_SWITCHDEV.
Fixes: abd5576b9c57 ("net: ti: icssg-prueth: Add support for ICSSG switch firmware")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
Reviewed-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://patch.msgid.link/20240708-net-deps-v2-1-b22fb74da2a3@baylibre.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When SMP is enabled and spinlocks are actually functional then there is
a deadlock with the 'statelock' spinlock between ks8851_start_xmit_spi
and ks8851_irq:
watchdog: BUG: soft lockup - CPU#0 stuck for 27s!
call trace:
queued_spin_lock_slowpath+0x100/0x284
do_raw_spin_lock+0x34/0x44
ks8851_start_xmit_spi+0x30/0xb8
ks8851_start_xmit+0x14/0x20
netdev_start_xmit+0x40/0x6c
dev_hard_start_xmit+0x6c/0xbc
sch_direct_xmit+0xa4/0x22c
__qdisc_run+0x138/0x3fc
qdisc_run+0x24/0x3c
net_tx_action+0xf8/0x130
handle_softirqs+0x1ac/0x1f0
__do_softirq+0x14/0x20
____do_softirq+0x10/0x1c
call_on_irq_stack+0x3c/0x58
do_softirq_own_stack+0x1c/0x28
__irq_exit_rcu+0x54/0x9c
irq_exit_rcu+0x10/0x1c
el1_interrupt+0x38/0x50
el1h_64_irq_handler+0x18/0x24
el1h_64_irq+0x64/0x68
__netif_schedule+0x6c/0x80
netif_tx_wake_queue+0x38/0x48
ks8851_irq+0xb8/0x2c8
irq_thread_fn+0x2c/0x74
irq_thread+0x10c/0x1b0
kthread+0xc8/0xd8
ret_from_fork+0x10/0x20
This issue has not been identified earlier because tests were done on
a device with SMP disabled and so spinlocks were actually NOPs.
Now use spin_(un)lock_bh for TX queue related locking to avoid execution
of softirq work synchronously that would lead to a deadlock.
Fixes: 3dc5d4454545 ("net: ks8851: Fix TX stall caused by TX buffer overrun")
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240706101337.854474-1-rwahl@gmx.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add support for the netdev-genl per queue stats API.
./tools/net/ynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
--dump qstats-get --json '{"scope":"queue"}'
[{'ifindex': 4,
'queue-id': 0,
'queue-type': 'rx',
'rx-alloc-fail': 0,
'rx-bytes': 266613,
'rx-packets': 3325},
{'ifindex': 4,
'queue-id': 0,
'queue-type': 'tx',
'tx-bytes': 142823367,
'tx-packets': 2387}]
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240706064324.137574-1-fujita.tomonori@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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