E810 products can support low latency Tx timestamp register read.
This requires usage of threaded IRQ instead of kthread to reduce the
kthread start latency (spikes up to 20 ms).
Add a check for the device capability and use the new method if
supported.
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220916201728.241510-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When performing a reset on ice driver with link-down-on-close flag on
interface would always stay down. Fix this by moving a check of this
flag to ice_stop() that is called only when user wants to bring
interface down.
Fixes: ab4ab73fc1 ("ice: Add ethtool private flag to make forcing link down optional")
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Petr Oros <poros@redhat.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
After lowering number of tx queues the warning appears:
"Number of in use tx queues changed invalidating tc mappings. Priority
traffic classification disabled!"
Example command to reproduce:
ethtool -L enp24s0f0 tx 36 rx 36
Fix this by setting correct tc mapping before setting real number of
queues on netdev.
Fixes: 0754d65bd4 ("ice: Add infrastructure for mqprio support via ndo_setup_tc")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
drivers/net/ethernet/freescale/fec.h
7d650df99d ("net: fec: add pm_qos support on imx6q platform")
40c79ce13b ("net: fec: add stop mode support for imx8 platform")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The driver currently takes an all or nothing approach for device MSI-X
vectors. Meaning if it does not get its full allocation, it will fail and
not load. There is no reason it can't work with a reduced number of MSI-X
vectors. Take a similar approach as commit 741106f7bd ("ice: Improve
MSI-X fallback logic") and, instead, adjust the MSI-X request to make use
of what is available.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Petr Oros <poros@redhat.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
pf->avail_txqs was allocated using bitmap_zalloc, bitmap_free should be
used to free this memory.
Fixes: 78b5713ac1 ("ice: Alloc queue management bitmaps and arrays dynamically")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Fix leak, when user changes ring parameters.
During reallocation of RX buffers, new DMA mappings are created for
those buffers. New buffers with different RX ring count should
substitute older ones, but those buffers were freed in ice_vsi_cfg_rxq
and reallocated again with ice_alloc_rx_buf. kfree on rx_buf caused
leak of already mapped DMA.
Reallocate ZC with xdp_buf struct, when BPF program loads. Reallocate
back to rx_buf, when BPF program unloads.
If BPF program is loaded/unloaded and XSK pools are created, reallocate
RX queues accordingly in XDP_SETUP_XSK_POOL handler.
Steps for reproduction:
while :
do
for ((i=0; i<=8160; i=i+32))
do
ethtool -G enp130s0f0 rx $i tx $i
sleep 0.5
ethtool -g enp130s0f0
done
done
Fixes: 617f3e1b58 ("ice: xsk: allocate separate memory for XDP SW ring")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Chandan <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-08-18 (ice)
This series contains updates to ice driver only.
Jesse and Anatolii add support for controlling FCS/CRC stripping via
ethtool.
Anirudh allows for 100M speeds on devices which support it.
Sylwester removes ucast_shared field and the associated dead code related
to it.
Mikael removes non-inclusive language from the driver.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ice: remove non-inclusive language
ice: Remove ucast_shared
ice: Allow 100M speeds for some devices
ice: Implement FCS/CRC and VLAN stripping co-existence policy
ice: Implement control of FCS/CRC stripping
====================
Link: https://lore.kernel.org/r/20220818155207.996297-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ice driver allocates per cpu XDP queues so that redirect path can safely
use smp_processor_id() as an index to the array. At the same time
though, XDP rings are used to pick NAPI context to call napi_schedule()
or set NAPIF_STATE_MISSED. When user reduces queue count, say to 8, and
num_possible_cpus() of underlying platform is 44, then this means queue
vectors with correlated NAPI contexts will carry several XDP queues.
This in turn can result in a broken behavior where NAPI context of
interest will never be scheduled and AF_XDP socket will not process any
traffic.
To fix this, let us change the way how XDP rings are assigned to Rx
rings and use this information later on when setting
ice_tx_ring::xsk_pool pointer. For each Rx ring, grab the associated
queue vector and walk through Tx ring's linked list. Once we stumble
upon XDP ring in it, assign this ring to ice_rx_ring::xdp_ring.
Previous [0] approach of fixing this issue was for txonly scenario
because of the described grouping of XDP rings across queue vectors. So,
relying on Rx ring meant that NAPI context could be scheduled with a
queue vector without XDP ring with associated XSK pool.
[0]: https://lore.kernel.org/netdev/20220707161128.54215-1-maciej.fijalkowski@intel.com/
Fixes: 2d4238f556 ("ice: Add support for AF_XDP")
Fixes: 22bf877e52 ("ice: introduce XDP_TX fallback path")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Remove ucast_shared as it was always true. Remove the code depending on
ucast_shared from ice_add_mac and ice_remove_mac.
Remove ice_find_ucast_rule_entry function as it was only
used when ucast_shared was set to false.
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Make sure that only the valid combinations of FCS/CRC stripping and
VLAN stripping offloads are allowed.
You cannot have FCS/CRC stripping disabled while VLAN stripping is
enabled - this breaks the correctness of the FCS/CRC.
If administrator tries to enable VLAN stripping when FCS/CRC stripping is
disabled, the request should be rejected.
If administrator tries to disable FCS/CRC stripping when VLAN stripping
is enabled, the request should be rejected if VLANs are configured. If
there is no VLAN configured, then both FCS/CRC and VLAN stripping should
be disabled.
Testing Hints:
The default settings after driver load are:
- VLAN C-Tag offloads are enabled
- VLAN S-Tag offloads are disabled
- FCS/CRC stripping is enabled
Restore the default settings before each test with the command:
ethtool -K eth0 rx-fcs off rxvlan on txvlan on rx-vlan-stag-hw-parse off
tx-vlan-stag-hw-insert off
Test 1:
Disable FCS/CRC and VLAN stripping:
ethtool -K eth0 rx-fcs on rxvlan off
Try to enable VLAN stripping:
ethtool -K eth0 rxvlan on
Expected: VLAN stripping request is rejected
Test 2:
Try to disable FCS/CRC stripping:
ethtool -K eth0 rx-fcs on
Expected: VLAN stripping is also disabled, as there are no VLAN
configured
Test 3:
Add a VLAN:
ip link add link eth0 eth0.42 type vlan id 42
ip link set eth0 up
Try to disable FCS/CRC stripping:
ethtool -K eth0 rx-fcs on
Expected: FCS/CRC stripping request is rejected
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The driver can allow the user to configure whether the CRC aka the FCS
(Frame Check Sequence) is DMA'd to the host as part of the receive
buffer. The driver usually wants this feature disabled so that the
hardware checks the FCS and strips it in order to save PCI bandwidth.
Control the reception of FCS to the host using the command:
ethtool -K eth0 rx-fcs <on|off>
The default shown in ethtool -k eth0 | grep fcs; should be "off", as the
hardware will drop any frame with a bad checksum, and DMA of the
checksum is useless overhead especially for small packets.
Testing Hints:
test the FCS/CRC arrives with received packets using
tcpdump -nnpi eth0 -xxxx
and it should show crc data as the last 4 bytes of the packet. Can also
use wireshark to turn on CRC checking and check the data is correct.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Co-developed-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Co-developed-by: Benjamin Mikailenko <benjamin.mikailenko@intel.com>
Signed-off-by: Benjamin Mikailenko <benjamin.mikailenko@intel.com>
Co-developed-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
When at least two interfaces are bonded and a bridge is enabled on the
bond, an error can occur when the bridge is removed and re-added. The
reason for the error is because promiscuous mode was not fully cleared from
the VLAN VSI in the hardware. With this change, promiscuous mode is
properly removed when the bridge disconnects from bonding.
[ 1033.676359] bond1: link status definitely down for interface enp95s0f0, disabling it
[ 1033.676366] bond1: making interface enp175s0f0 the new active one
[ 1033.676369] device enp95s0f0 left promiscuous mode
[ 1033.676522] device enp175s0f0 entered promiscuous mode
[ 1033.676901] ice 0000:af:00.0 enp175s0f0: Error setting Multicast promiscuous mode on VSI 6
[ 1041.795662] ice 0000:af:00.0 enp175s0f0: Error setting Multicast promiscuous mode on VSI 6
[ 1041.944826] bond1: link status definitely down for interface enp175s0f0, disabling it
[ 1041.944874] device enp175s0f0 left promiscuous mode
[ 1041.944918] bond1: now running without any active interface!
Fixes: c31af68a1b ("ice: Add outer_vlan_ops and VSI specific VLAN ops implementations")
Co-developed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Grzegorz Siwik <grzegorz.siwik@intel.com>
Link: https://lore.kernel.org/all/CAK8fFZ7m-KR57M_rYX6xZN39K89O=LGooYkKsu6HKt0Bs+x6xQ@mail.gmail.com/
Tested-by: Jaroslav Pulchart <jaroslav.pulchart@gooddata.com>
Tested-by: Igor Raits <igor@gooddata.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
vsi->current_netdev_flags is used store the current net device
flags, not the active netdevice features. So it should use
vsi->netdev->featurs, rather than vsi->current_netdev_flags
to check NETIF_F_HW_VLAN_CTAG_FILTER.
Fixes: 1babaf77f4 ("ice: Advertise 802.1ad VLAN filtering and offloads for PF netdev")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Acked-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
100GbE Intel Wired LAN Driver Updates 2022-07-28
This series contains updates to ice driver only.
Michal allows for VF true promiscuous mode to be set for multiple VFs
and adds clearing of promiscuous filters when VF trust is removed.
Maciej refactors ice_set_features() to track/check changed features
instead of constantly checking against netdev features and adds support for
NETIF_F_LOOPBACK.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ice: allow toggling loopback mode via ndo_set_features callback
ice: compress branches in ice_set_features()
ice: Fix promiscuous mode not turning off
ice: Introduce enabling promiscuous mode on multiple VF's
====================
Link: https://lore.kernel.org/r/20220728195538.3391360-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support for NETIF_F_LOOPBACK. This feature can be set via:
$ ethtool -K eth0 loopback <on|off>
Feature can be useful for local data path tests.
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Instead of rather verbose comparison of current netdev->features bits vs
the incoming ones from user, let us compress them by a helper features
set that will be the result of netdev->features XOR features. This way,
current, extensive branches:
if (features & NETIF_F_BIT && !(netdev->features & NETIF_F_BIT))
set_feature(true);
else if (!(features & NETIF_F_BIT) && netdev->features & NETIF_F_BIT)
set_feature(false);
can become:
netdev_features_t changed = netdev->features ^ features;
if (changed & NETIF_F_BIT)
set_feature(!!(features & NETIF_F_BIT));
This is nothing new as currently several other drivers use this
approach, which I find much more convenient.
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
In current implementation default VSI switch filter is only able to
forward traffic to a single VSI. This limits promiscuous mode with
private flag 'vf-true-promisc-support' to a single VF. Enabling it on
the second VF won't work. Also allmulticast support doesn't seem to be
properly implemented when vf-true-promisc-support is true.
Use standard ice_add_rule_internal() function that already implements
forwarding to multiple VSI's instead of constructing AQ call manually.
Add switch filter for allmulticast mode when vf-true-promisc-support is
enabled. The same filter is added regardless of the flag - it doesn't
matter for this case.
Remove unnecessary fields in switch structure. From now on book keeping
will be done by ice_add_rule_internal().
Refactor unnecessarily passed function arguments.
To test:
1) Create 2 VM's, and two VF's. Attach VF's to VM's.
2) Enable promiscuous mode on both of them and check if
traffic is seen on both of them.
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Currently loopback test is failiing due to the error returned from
ice_vsi_vlan_setup(). Skip calling it when preparing loopback VSI.
Fixes: 0e674aeb0b ("ice: Add handler for ethtool selftest")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The driver currently does not allow two VSIs in the same PF domain
to have the same unicast MAC address. This is incorrect in the sense
that a policy decision is being made in the driver when it must be
left to the user. This approach was causing issues when rebooting
the system with VFs spawned not being able to change their MAC addresses.
Such errors were present in dmesg:
[ 7921.068237] ice 0000:b6:00.2 ens2f2: Unicast MAC 6a:0d:e4:70:ca:d1 already
exists on this PF. Preventing setting VF 7 unicast MAC address to 6a:0d:e4:70:ca:d1
Fix that by removing this restriction. Doing this also allows
us to remove some additional code that's checking if a unicast MAC
filter already exists.
Fixes: 47ebc7b024 ("ice: Check if unicast MAC exists before setting VF MAC")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
After commit 62b36c3ea6 ("PCI/AER: Remove
pci_cleanup_aer_uncorrect_error_status() calls"), calls to
pci_cleanup_aer_uncorrect_error_status() have already been removed. But in
commit 5995b6d0c6 ("ice: Implement pci_error_handler ops")
pci_cleanup_aer_uncorrect_error_status was used again, so remove it in
this patch.
Signed-off-by: Zhuo Chen <chenzhuo.1@bytedance.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Sen Wang <wangsen.harry@bytedance.com>
Cc: Wenliang Wang <wangwenliang.1995@bytedance.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The driver currently presumes that the record data in the PLDM header
of the firmware image will match the device ID of the running device.
This is true for E810 devices. It appears that for E822 devices that
this is not guaranteed to be true.
Fix this by adding a check for the generic E822 device.
Fixes: d69ea414c9 ("ice: implement device flash update via devlink")
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
VLAN filtering features, that is C-Tag and S-Tag, in DVM mode must be
both enabled or disabled.
In case of turning off/on only one of the features, another feature must
be turned off/on automatically with issuing an appropriate message to
the kernel log.
Fixes: 1babaf77f4 ("ice: Advertise 802.1ad VLAN filtering and offloads for PF netdev")
Signed-off-by: Roman Storozhenko <roman.storozhenko@intel.com>
Co-developed-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The hardware statistics counters are not cleared during resets so the
drivers first access is to initialize the baseline and then subsequent
reads are for reporting the counters. The statistics counters are read
during the watchdog subtask when the interface is up. If the baseline
is not initialized before the interface is up, then there can be a brief
window in which some traffic can be transmitted/received before the
initial baseline reading takes place.
Directly initialize ethtool statistics in driver open so the baseline will
be initialized when the interface is up, and any dropped packets
incremented before the interface is up won't be reported.
Fixes: 28dc1b86f8 ("ice: ignore dropped packets during init")
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add extack support to .ndo_fdb_del in netdevice.h and
all related methods.
Signed-off-by: Alaa Mohamed <eng.alaamohamedsoliman.am@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Function ice_plug_aux_dev() assigns pf->adev field too early prior
aux device initialization and on other side ice_unplug_aux_dev()
starts aux device deinit and at the end assigns NULL to pf->adev.
This is wrong because pf->adev should always be non-NULL only when
aux device is fully initialized and ready. This wrong order causes
a crash when ice_send_event_to_aux() call occurs because that function
depends on non-NULL value of pf->adev and does not assume that
aux device is half-initialized or half-destroyed.
After order correction the race window is tiny but it is still there,
as Leon mentioned and manipulation with pf->adev needs to be protected
by mutex.
Fix (un-)plugging functions so pf->adev field is set after aux device
init and prior aux device destroy and protect pf->adev assignment by
new mutex. This mutex is also held during ice_send_event_to_aux()
call to ensure that aux device is valid during that call.
Note that device lock used ice_send_event_to_aux() needs to be kept
to avoid race with aux drv unload.
Reproducer:
cycle=1
while :;do
echo "#### Cycle: $cycle"
ip link set ens7f0 mtu 9000
ip link add bond0 type bond mode 1 miimon 100
ip link set bond0 up
ifenslave bond0 ens7f0
ip link set bond0 mtu 9000
ethtool -L ens7f0 combined 1
ip link del bond0
ip link set ens7f0 mtu 1500
sleep 1
let cycle++
done
In short when the device is added/removed to/from bond the aux device
is unplugged/plugged. When MTU of the device is changed an event is
sent to aux device asynchronously. This can race with (un)plugging
operation and because pf->adev is set too early (plug) or too late
(unplug) the function ice_send_event_to_aux() can touch uninitialized
or destroyed fields. In the case of crash below pf->adev->dev.mutex.
Crash:
[ 53.372066] bond0: (slave ens7f0): making interface the new active one
[ 53.378622] bond0: (slave ens7f0): Enslaving as an active interface with an u
p link
[ 53.386294] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 53.549104] bond0: (slave ens7f1): Enslaving as a backup interface with an up
link
[ 54.118906] ice 0000:ca:00.0 ens7f0: Number of in use tx queues changed inval
idating tc mappings. Priority traffic classification disabled!
[ 54.233374] ice 0000:ca:00.1 ens7f1: Number of in use tx queues changed inval
idating tc mappings. Priority traffic classification disabled!
[ 54.248204] bond0: (slave ens7f0): Releasing backup interface
[ 54.253955] bond0: (slave ens7f1): making interface the new active one
[ 54.274875] bond0: (slave ens7f1): Releasing backup interface
[ 54.289153] bond0 (unregistering): Released all slaves
[ 55.383179] MII link monitoring set to 100 ms
[ 55.398696] bond0: (slave ens7f0): making interface the new active one
[ 55.405241] BUG: kernel NULL pointer dereference, address: 0000000000000080
[ 55.405289] bond0: (slave ens7f0): Enslaving as an active interface with an u
p link
[ 55.412198] #PF: supervisor write access in kernel mode
[ 55.412200] #PF: error_code(0x0002) - not-present page
[ 55.412201] PGD 25d2ad067 P4D 0
[ 55.412204] Oops: 0002 [#1] PREEMPT SMP NOPTI
[ 55.412207] CPU: 0 PID: 403 Comm: kworker/0:2 Kdump: loaded Tainted: G S
5.17.0-13579-g57f2d6540f03 #1
[ 55.429094] bond0: (slave ens7f1): Enslaving as a backup interface with an up
link
[ 55.430224] Hardware name: Dell Inc. PowerEdge R750/06V45N, BIOS 1.4.4 10/07/
2021
[ 55.430226] Workqueue: ice ice_service_task [ice]
[ 55.468169] RIP: 0010:mutex_unlock+0x10/0x20
[ 55.472439] Code: 0f b1 13 74 96 eb e0 4c 89 ee eb d8 e8 79 54 ff ff 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 65 48 8b 04 25 40 ef 01 00 31 d2 <f0> 48 0f b1 17 75 01 c3 e9 e3 fe ff ff 0f 1f 00 0f 1f 44 00 00 48
[ 55.491186] RSP: 0018:ff4454230d7d7e28 EFLAGS: 00010246
[ 55.496413] RAX: ff1a79b208b08000 RBX: ff1a79b2182e8880 RCX: 0000000000000001
[ 55.503545] RDX: 0000000000000000 RSI: ff4454230d7d7db0 RDI: 0000000000000080
[ 55.510678] RBP: ff1a79d1c7e48b68 R08: ff4454230d7d7db0 R09: 0000000000000041
[ 55.517812] R10: 00000000000000a5 R11: 00000000000006e6 R12: ff1a79d1c7e48bc0
[ 55.524945] R13: 0000000000000000 R14: ff1a79d0ffc305c0 R15: 0000000000000000
[ 55.532076] FS: 0000000000000000(0000) GS:ff1a79d0ffc00000(0000) knlGS:0000000000000000
[ 55.540163] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 55.545908] CR2: 0000000000000080 CR3: 00000003487ae003 CR4: 0000000000771ef0
[ 55.553041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 55.560173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 55.567305] PKRU: 55555554
[ 55.570018] Call Trace:
[ 55.572474] <TASK>
[ 55.574579] ice_service_task+0xaab/0xef0 [ice]
[ 55.579130] process_one_work+0x1c5/0x390
[ 55.583141] ? process_one_work+0x390/0x390
[ 55.587326] worker_thread+0x30/0x360
[ 55.590994] ? process_one_work+0x390/0x390
[ 55.595180] kthread+0xe6/0x110
[ 55.598325] ? kthread_complete_and_exit+0x20/0x20
[ 55.603116] ret_from_fork+0x1f/0x30
[ 55.606698] </TASK>
Fixes: f9f5301e7e ("ice: Register auxiliary device to provide RDMA")
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Switch id should be the same for each netdevice on a driver.
The id must be unique between devices on the same system, but
does not need to be unique between devices on different systems.
The switch id is used to locate ports on a switch and to know if
aggregated ports belong to the same switch.
To meet this requirements, use pci_get_dsn as switch id value, as
this is unique value for each devices on the same system.
Implementing switch id is needed by automatic tools for kubernetes.
Set switch id by setting devlink port attribiutes and calling
devlink_port_attrs_set while creating pf (for uplink) and vf
(for representator) devlink port.
To get switch id (in switchdev mode):
cat /sys/class/net/$PF0/phys_switch_id
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
We need to wait 5 s for EMP reset after firmware flash. Code was extracted
from OOT driver (ice v1.8.3 downloaded from sourceforge). Without this
wait, fw_activate let card in inconsistent state and recoverable only
by second flash/activate. Flash was tested on these fw's:
From -> To
3.00 -> 3.10/3.20
3.10 -> 3.00/3.20
3.20 -> 3.00/3.10
Reproducer:
[root@host ~]# devlink dev flash pci/0000:ca:00.0 file E810_XXVDA4_FH_O_SEC_FW_1p6p1p9_NVM_3p10_PLDMoMCTP_0.11_8000AD7B.bin
Preparing to flash
[fw.mgmt] Erasing
[fw.mgmt] Erasing done
[fw.mgmt] Flashing 100%
[fw.mgmt] Flashing done 100%
[fw.undi] Erasing
[fw.undi] Erasing done
[fw.undi] Flashing 100%
[fw.undi] Flashing done 100%
[fw.netlist] Erasing
[fw.netlist] Erasing done
[fw.netlist] Flashing 100%
[fw.netlist] Flashing done 100%
Activate new firmware by devlink reload
[root@host ~]# devlink dev reload pci/0000:ca:00.0 action fw_activate
reload_actions_performed:
fw_activate
[root@host ~]# ip link show ens7f0
71: ens7f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether b4:96:91:dc:72:e0 brd ff:ff:ff:ff:ff:ff
altname enp202s0f0
dmesg after flash:
[ 55.120788] ice: Copyright (c) 2018, Intel Corporation.
[ 55.274734] ice 0000:ca:00.0: Get PHY capabilities failed status = -5, continuing anyway
[ 55.569797] ice 0000:ca:00.0: The DDP package was successfully loaded: ICE OS Default Package version 1.3.28.0
[ 55.603629] ice 0000:ca:00.0: Get PHY capability failed.
[ 55.608951] ice 0000:ca:00.0: ice_init_nvm_phy_type failed: -5
[ 55.647348] ice 0000:ca:00.0: PTP init successful
[ 55.675536] ice 0000:ca:00.0: DCB is enabled in the hardware, max number of TCs supported on this port are 8
[ 55.685365] ice 0000:ca:00.0: FW LLDP is disabled, DCBx/LLDP in SW mode.
[ 55.692179] ice 0000:ca:00.0: Commit DCB Configuration to the hardware
[ 55.701382] ice 0000:ca:00.0: 126.024 Gb/s available PCIe bandwidth, limited by 16.0 GT/s PCIe x8 link at 0000:c9:02.0 (capable of 252.048 Gb/s with 16.0 GT/s PCIe x16 link)
Reboot doesn’t help, only second flash/activate with OOT or patched
driver put card back in consistent state.
After patch:
[root@host ~]# devlink dev flash pci/0000:ca:00.0 file E810_XXVDA4_FH_O_SEC_FW_1p6p1p9_NVM_3p10_PLDMoMCTP_0.11_8000AD7B.bin
Preparing to flash
[fw.mgmt] Erasing
[fw.mgmt] Erasing done
[fw.mgmt] Flashing 100%
[fw.mgmt] Flashing done 100%
[fw.undi] Erasing
[fw.undi] Erasing done
[fw.undi] Flashing 100%
[fw.undi] Flashing done 100%
[fw.netlist] Erasing
[fw.netlist] Erasing done
[fw.netlist] Flashing 100%
[fw.netlist] Flashing done 100%
Activate new firmware by devlink reload
[root@host ~]# devlink dev reload pci/0000:ca:00.0 action fw_activate
reload_actions_performed:
fw_activate
[root@host ~]# ip link show ens7f0
19: ens7f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
link/ether b4:96:91:dc:72:e0 brd ff:ff:ff:ff:ff:ff
altname enp202s0f0
Fixes: 399e27dbbd ("ice: support immediate firmware activation via devlink reload")
Signed-off-by: Petr Oros <poros@redhat.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Attempt to add mpls+tso support.
I don't have ice hardware available to test myself, but I just implemented
this feature in i40e and thought it might be useful to implement for ice
while this is fresh in my brain.
Hoping some one at intel will be able to test this on my behalf.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The CI testing bots triggered the following splat:
[ 718.203054] BUG: KASAN: use-after-free in free_irq_cpu_rmap+0x53/0x80
[ 718.206349] Read of size 4 at addr ffff8881bd127e00 by task sh/20834
[ 718.212852] CPU: 28 PID: 20834 Comm: sh Kdump: loaded Tainted: G S W IOE 5.17.0-rc8_nextqueue-devqueue-02643-g23f3121aca93 #1
[ 718.219695] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0012.070720200218 07/07/2020
[ 718.223418] Call Trace:
[ 718.227139]
[ 718.230783] dump_stack_lvl+0x33/0x42
[ 718.234431] print_address_description.constprop.9+0x21/0x170
[ 718.238177] ? free_irq_cpu_rmap+0x53/0x80
[ 718.241885] ? free_irq_cpu_rmap+0x53/0x80
[ 718.245539] kasan_report.cold.18+0x7f/0x11b
[ 718.249197] ? free_irq_cpu_rmap+0x53/0x80
[ 718.252852] free_irq_cpu_rmap+0x53/0x80
[ 718.256471] ice_free_cpu_rx_rmap.part.11+0x37/0x50 [ice]
[ 718.260174] ice_remove_arfs+0x5f/0x70 [ice]
[ 718.263810] ice_rebuild_arfs+0x3b/0x70 [ice]
[ 718.267419] ice_rebuild+0x39c/0xb60 [ice]
[ 718.270974] ? asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 718.274472] ? ice_init_phy_user_cfg+0x360/0x360 [ice]
[ 718.278033] ? delay_tsc+0x4a/0xb0
[ 718.281513] ? preempt_count_sub+0x14/0xc0
[ 718.284984] ? delay_tsc+0x8f/0xb0
[ 718.288463] ice_do_reset+0x92/0xf0 [ice]
[ 718.292014] ice_pci_err_resume+0x91/0xf0 [ice]
[ 718.295561] pci_reset_function+0x53/0x80
<...>
[ 718.393035] Allocated by task 690:
[ 718.433497] Freed by task 20834:
[ 718.495688] Last potentially related work creation:
[ 718.568966] The buggy address belongs to the object at ffff8881bd127e00
which belongs to the cache kmalloc-96 of size 96
[ 718.574085] The buggy address is located 0 bytes inside of
96-byte region [ffff8881bd127e00, ffff8881bd127e60)
[ 718.579265] The buggy address belongs to the page:
[ 718.598905] Memory state around the buggy address:
[ 718.601809] ffff8881bd127d00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
[ 718.604796] ffff8881bd127d80: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
[ 718.607794] >ffff8881bd127e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
[ 718.610811] ^
[ 718.613819] ffff8881bd127e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
[ 718.617107] ffff8881bd127f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
This is due to that free_irq_cpu_rmap() is always being called
*after* (devm_)free_irq() and thus it tries to work with IRQ descs
already freed. For example, on device reset the driver frees the
rmap right before allocating a new one (the splat above).
Make rmap creation and freeing function symmetrical with
{request,free}_irq() calls i.e. do that on ifup/ifdown instead
of device probe/remove/resume. These operations can be performed
independently from the actual device aRFS configuration.
Also, make sure ice_vsi_free_irq() clears IRQ affinity notifiers
only when aRFS is disabled -- otherwise, CPU rmap sets and clears
its own and they must not be touched manually.
Fixes: 28bf26724f ("ice: Implement aRFS")
Co-developed-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tested-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Currently when XDP rings are created, each descriptor gets its DD bit
set, which turns out to be the wrong approach as it can lead to a
situation where more descriptors get cleaned than it was supposed to,
e.g. when AF_XDP busy poll is run with a large batch size. In this
situation, the driver would request for more buffers than it is able to
handle.
Fix this by not setting the DD bits in ice_xdp_alloc_setup_rings(). They
should be initialized to zero instead.
Fixes: 9610bd988d ("ice: optimize XDP_TX workloads")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Shwetha Nagaraju <shwetha.nagaraju@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Unfortunately, the ice driver doesn't respect the RCU critical section that
XSK wakeup is surrounded with. To fix this, add synchronize_rcu() calls to
paths that destroy resources that might be in use.
This was addressed in other AF_XDP ZC enabled drivers, for reference see
for example commit b3873a5be7 ("net/i40e: Fix concurrency issues
between config flow and XSK")
Fixes: efc2214b60 ("ice: Add support for XDP")
Fixes: 2d4238f556 ("ice: Add support for AF_XDP")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Shwetha Nagaraju <shwetha.nagaraju@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Handling of all-multicast flag and associated multicast promiscuous
mode is broken in ice driver. When an user switches allmulticast
flag on or off the driver checks whether any VLANs are configured
over the interface (except default VLAN 0).
If any extra VLANs are registered it enables multicast promiscuous
mode for all these VLANs (including default VLAN 0) using
ICE_SW_LKUP_PROMISC_VLAN look-up type. In this situation all
multicast packets tagged with known VLAN ID or untagged are received
and multicast packets tagged with unknown VLAN ID ignored.
If no extra VLANs are registered (so only VLAN 0 exists) it enables
multicast promiscuous mode for VLAN 0 and uses ICE_SW_LKUP_PROMISC
look-up type. In this situation any multicast packets including
tagged ones are received.
The driver handles IFF_ALLMULTI in ice_vsi_sync_fltr() this way:
ice_vsi_sync_fltr() {
...
if (changed_flags & IFF_ALLMULTI) {
if (netdev->flags & IFF_ALLMULTI) {
if (vsi->num_vlans > 1)
ice_set_promisc(..., ICE_MCAST_VLAN_PROMISC_BITS);
else
ice_set_promisc(..., ICE_MCAST_PROMISC_BITS);
} else {
if (vsi->num_vlans > 1)
ice_clear_promisc(..., ICE_MCAST_VLAN_PROMISC_BITS);
else
ice_clear_promisc(..., ICE_MCAST_PROMISC_BITS);
}
}
...
}
The code above depends on value vsi->num_vlan that specifies number
of VLANs configured over the interface (including VLAN 0) and
this is problem because that value is modified in NDO callbacks
ice_vlan_rx_add_vid() and ice_vlan_rx_kill_vid().
Scenario 1:
1. ip link set ens7f0 allmulticast on
2. ip link add vlan10 link ens7f0 type vlan id 10
3. ip link set ens7f0 allmulticast off
4. ip link set ens7f0 allmulticast on
[1] In this scenario IFF_ALLMULTI is enabled and the driver calls
ice_set_promisc(..., ICE_MCAST_PROMISC_BITS) that installs
multicast promisc rule with non-VLAN look-up type.
[2] Then VLAN with ID 10 is added and vsi->num_vlan incremented to 2
[3] Command switches IFF_ALLMULTI off and the driver calls
ice_clear_promisc(..., ICE_MCAST_VLAN_PROMISC_BITS) but this
call is effectively NOP because it looks for multicast promisc
rules for VLAN 0 and VLAN 10 with VLAN look-up type but no such
rules exist. So the all-multicast remains enabled silently
in hardware.
[4] Command tries to switch IFF_ALLMULTI on and the driver calls
ice_clear_promisc(..., ICE_MCAST_PROMISC_BITS) but this call
fails (-EEXIST) because non-VLAN multicast promisc rule already
exists.
Scenario 2:
1. ip link add vlan10 link ens7f0 type vlan id 10
2. ip link set ens7f0 allmulticast on
3. ip link add vlan20 link ens7f0 type vlan id 20
4. ip link del vlan10 ; ip link del vlan20
5. ip link set ens7f0 allmulticast off
[1] VLAN with ID 10 is added and vsi->num_vlan==2
[2] Command switches IFF_ALLMULTI on and driver installs multicast
promisc rules with VLAN look-up type for VLAN 0 and 10
[3] VLAN with ID 20 is added and vsi->num_vlan==3 but no multicast
promisc rules is added for this new VLAN so the interface does
not receive MC packets from VLAN 20
[4] Both VLANs are removed but multicast rule for VLAN 10 remains
installed so interface receives multicast packets from VLAN 10
[5] Command switches IFF_ALLMULTI off and because vsi->num_vlan is 1
the driver tries to remove multicast promisc rule for VLAN 0
with non-VLAN look-up that does not exist.
All-multicast looks disabled from user point of view but it
is partially enabled in HW (interface receives all multicast
packets either untagged or tagged with VLAN ID 10)
To resolve these issues the patch introduces these changes:
1. Adds handling for IFF_ALLMULTI to ice_vlan_rx_add_vid() and
ice_vlan_rx_kill_vid() callbacks. So when VLAN is added/removed
and IFF_ALLMULTI is enabled an appropriate multicast promisc
rule for that VLAN ID is added/removed.
2. In ice_vlan_rx_add_vid() when first VLAN besides VLAN 0 is added
so (vsi->num_vlan == 2) and IFF_ALLMULTI is enabled then look-up
type for existing multicast promisc rule for VLAN 0 is updated
to ICE_MCAST_VLAN_PROMISC_BITS.
3. In ice_vlan_rx_kill_vid() when last VLAN besides VLAN 0 is removed
so (vsi->num_vlan == 1) and IFF_ALLMULTI is enabled then look-up
type for existing multicast promisc rule for VLAN 0 is updated
to ICE_MCAST_PROMISC_BITS.
4. Both ice_vlan_rx_{add,kill}_vid() have to run under ICE_CFG_BUSY
bit protection to avoid races with ice_vsi_sync_fltr() that runs
in ice_service_task() context.
5. Bit ICE_VSI_VLAN_FLTR_CHANGED is use-less and can be removed.
6. Error messages added to ice_fltr_*_vsi_promisc() helper functions
to avoid them in their callers
7. Small improvements to increase readability
Fixes: 5eda8afd6b ("ice: Add support for PF/VF promiscuous mode")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Alice Michael <alice.michael@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 2ccc1c1ccc ("ice: Remove excess error variables") merged
the usage of 'status' and 'err' variables into single one in
function ice_set_mac_address(). Unfortunately this causes
a regression when call of ice_fltr_add_mac() returns -EEXIST because
this return value does not indicate an error in this case but
value of 'err' remains to be -EEXIST till the end of the function
and is returned to caller.
Prior mentioned commit this does not happen because return value of
ice_fltr_add_mac() was stored to 'status' variable first and
if it was -EEXIST then 'err' remains to be zero.
Fix the problem by reset 'err' to zero when ice_fltr_add_mac()
returns -EEXIST.
Fixes: 2ccc1c1ccc ("ice: Remove excess error variables")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Signed-off-by: Alice Michael <alice.michael@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's a kernel BUG splat on processing aux critical error
interrupts in ice_misc_intr():
[ 2100.917085] BUG: scheduling while atomic: swapper/15/0/0x00010000
...
[ 2101.060770] Call Trace:
[ 2101.063229] <IRQ>
[ 2101.065252] dump_stack+0x41/0x60
[ 2101.068587] __schedule_bug.cold.100+0x4c/0x58
[ 2101.073060] __schedule+0x6a4/0x830
[ 2101.076570] schedule+0x35/0xa0
[ 2101.079727] schedule_preempt_disabled+0xa/0x10
[ 2101.084284] __mutex_lock.isra.7+0x310/0x420
[ 2101.088580] ? ice_misc_intr+0x201/0x2e0 [ice]
[ 2101.093078] ice_send_event_to_aux+0x25/0x70 [ice]
[ 2101.097921] ice_misc_intr+0x220/0x2e0 [ice]
[ 2101.102232] __handle_irq_event_percpu+0x40/0x180
[ 2101.106965] handle_irq_event_percpu+0x30/0x80
[ 2101.111434] handle_irq_event+0x36/0x53
[ 2101.115292] handle_edge_irq+0x82/0x190
[ 2101.119148] handle_irq+0x1c/0x30
[ 2101.122480] do_IRQ+0x49/0xd0
[ 2101.125465] common_interrupt+0xf/0xf
[ 2101.129146] </IRQ>
...
As Andrew correctly mentioned previously[0], the following call
ladder happens:
ice_misc_intr() <- hardirq
ice_send_event_to_aux()
device_lock()
mutex_lock()
might_sleep()
might_resched() <- oops
Add a new PF state bit which indicates that an aux critical error
occurred and serve it in ice_service_task() in process context.
The new ice_pf::oicr_err_reg is read-write in both hardirq and
process contexts, but only 3 bits of non-critical data probably
aren't worth explicit synchronizing (and they're even in the same
byte [31:24]).
[0] https://lore.kernel.org/all/YeSRUVmrdmlUXHDn@lunn.ch
Fixes: 348048e724 ("ice: Implement iidc operations")
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tested-by: Michal Kubiak <michal.kubiak@intel.com>
Acked-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently fdir_fltr_lock is accessed in ice_vsi_release_all() function
after it is destroyed. Instead destroy mutex after ice_vsi_release_all.
Fixes: 40319796b7 ("ice: Add flow director support for channel mode")
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
It is possible to do NULL pointer dereference in routine that updates
Tx ring stats. Currently only stats and bytes are updated when ring
pointer is valid, but later on ring is accessed to propagate gathered Tx
stats onto VSI stats.
Change the existing logic to move to next ring when ring is NULL.
Fixes: e72bba2135 ("ice: split ice_ring onto Tx/Rx separate structs")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice_reset_vf function performs actions which must be taken only
while holding the VF configuration lock. Some flows already acquired the
lock, while other flows must acquire it just for the reset function. Add
the ICE_VF_RESET_LOCK flag to the function so that it can handle taking
and releasing the lock instead at the appropriate scope.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice_reset_vf function takes a boolean parameter which indicates
whether or not the reset is due to a VFLR event.
This is somewhat confusing to read because readers must interpret what
"true" and "false" mean when seeing a line of code like
"ice_reset_vf(vf, false)".
We will want to add another toggle to the ice_reset_vf in a following
change. To avoid proliferating many arguments, convert this function to
take flags instead. ICE_VF_RESET_VFLR will indicate if this is a VFLR
reset. A value of 0 indicates no flags.
One could argue that "ice_reset_vf(vf, 0)" is no more readable than
"ice_reset_vf(vf, false)".. However, this type of flags interface is
somewhat common and using 0 to mean "no flags" makes sense in this
context. We could bother to add a define for "ICE_VF_RESET_PLAIN" or
something similar, but this can be confusing since its not an actual bit
flag.
This paves the way to add another flag to the function in a following
change.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice_reset_all_vfs function takes a parameter to handle whether its
operating after a VFLR event or not. This is not necessary as every
caller always passes true. Simplify the interface by removing the
parameter.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ICE_MAX_VF_COUNT field is defined in ice_sriov.h. This count is true
for SR-IOV but will not be true for all VF implementations, such as when
the ice driver supports Scalable IOV.
Rename this definition to clearly indicate ICE_MAX_SRIOV_VFS.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Several headers in the ice driver include ice.h even though they are
themselves included by that header. The most notable of these is
ice_common.h, but several other headers also do this.
Such a recursive inclusion is problematic as it forces headers to be
included in a strict order, otherwise compilation errors can result. The
circular inclusions do not trigger an endless loop due to standard
header inclusion guards, however other errors can occur.
For example, ice_flow.h defines ice_rss_hash_cfg, which is used by
ice_sriov.h as part of the definition of ice_vf_hash_ip_ctx.
ice_flow.h includes ice_acl.h, which includes ice_common.h, and which
finally includes ice.h. Since ice.h itself includes ice_sriov.h, this
creates a circular dependency.
The definition in ice_sriov.h requires things from ice_flow.h, but
ice_flow.h itself will lead to trying to load ice_sriov.h as part of its
process for expanding ice.h. The current code avoids this issue by
having an implicit dependency without the include of ice_flow.h.
If we were to fix that so that ice_sriov.h explicitly depends on
ice_flow.h the following pattern would occur:
ice_flow.h -> ice_acl.h -> ice_common.h -> ice.h -> ice_sriov.h
At this point, during the expansion of, the header guard for ice_flow.h
is already set, so when ice_sriov.h attempts to load the ice_flow.h
header it is skipped. Then, we go on to begin including the rest of
ice_sriov.h, including structure definitions which depend on
ice_rss_hash_cfg. This produces a compiler warning because
ice_rss_hash_cfg hasn't yet been included. Remember, we're just at the
start of ice_flow.h!
If the order of headers is incorrect (ice_flow.h is not implicitly
loaded first in all files which include ice_sriov.h) then we get the
same failure.
Removing this recursive inclusion requires fixing a few cases where some
headers depended on the header inclusions from ice.h. In addition, a few
other changes are also required.
Most notably, ice_hw_to_dev is implemented as a macro in ice_osdep.h,
which is the likely reason that ice_common.h includes ice.h at all. This
macro implementation requires the full definition of ice_pf in order to
properly compile.
Fix this by moving it to a function declared in ice_main.c, so that we
do not require all files to depend on the layout of the ice_pf
structure.
Note that this change only fixes circular dependencies, but it does not
fully resolve all implicit dependencies where one header may depend on
the inclusion of another. I tried to fix as many of the implicit
dependencies as I noticed, but fixing them all requires a somewhat
tedious analysis of each header and attempting to compile it separately.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tony Nguyen says:
====================
100GbE Intel Wired LAN Driver Updates 2022-03-09
This series contains updates to ice driver only.
Martyna implements switchdev filtering on inner EtherType field for
tunnels.
Marcin adds reporting of slowpath statistics for port representors.
Jonathan Toppins changes a non-fatal link error message from warning to
debug.
Maciej removes unnecessary checks in ice_clean_tx_irq().
Amritha adds support for ADQ to match outer destination MAC for tunnels.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ice: Add support for outer dest MAC for ADQ tunnels
ice: avoid XDP checks in ice_clean_tx_irq()
ice: change "can't set link" message to dbg level
ice: Add slow path offload stats on port representor in switchdev
ice: Add support for inner etype in switchdev
====================
Link: https://lore.kernel.org/r/20220309190315.1380414-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 5dbbbd01cb ("ice: Avoid RTNL lock when re-creating
auxiliary device") changes a process of re-creation of aux device
so ice_plug_aux_dev() is called from ice_service_task() context.
This unfortunately opens a race window that can result in dead-lock
when interface has left LAG and immediately enters LAG again.
Reproducer:
```
#!/bin/sh
ip link add lag0 type bond mode 1 miimon 100
ip link set lag0
for n in {1..10}; do
echo Cycle: $n
ip link set ens7f0 master lag0
sleep 1
ip link set ens7f0 nomaster
done
```
This results in:
[20976.208697] Workqueue: ice ice_service_task [ice]
[20976.213422] Call Trace:
[20976.215871] __schedule+0x2d1/0x830
[20976.219364] schedule+0x35/0xa0
[20976.222510] schedule_preempt_disabled+0xa/0x10
[20976.227043] __mutex_lock.isra.7+0x310/0x420
[20976.235071] enum_all_gids_of_dev_cb+0x1c/0x100 [ib_core]
[20976.251215] ib_enum_roce_netdev+0xa4/0xe0 [ib_core]
[20976.256192] ib_cache_setup_one+0x33/0xa0 [ib_core]
[20976.261079] ib_register_device+0x40d/0x580 [ib_core]
[20976.266139] irdma_ib_register_device+0x129/0x250 [irdma]
[20976.281409] irdma_probe+0x2c1/0x360 [irdma]
[20976.285691] auxiliary_bus_probe+0x45/0x70
[20976.289790] really_probe+0x1f2/0x480
[20976.298509] driver_probe_device+0x49/0xc0
[20976.302609] bus_for_each_drv+0x79/0xc0
[20976.306448] __device_attach+0xdc/0x160
[20976.310286] bus_probe_device+0x9d/0xb0
[20976.314128] device_add+0x43c/0x890
[20976.321287] __auxiliary_device_add+0x43/0x60
[20976.325644] ice_plug_aux_dev+0xb2/0x100 [ice]
[20976.330109] ice_service_task+0xd0c/0xed0 [ice]
[20976.342591] process_one_work+0x1a7/0x360
[20976.350536] worker_thread+0x30/0x390
[20976.358128] kthread+0x10a/0x120
[20976.365547] ret_from_fork+0x1f/0x40
...
[20976.438030] task:ip state:D stack: 0 pid:213658 ppid:213627 flags:0x00004084
[20976.446469] Call Trace:
[20976.448921] __schedule+0x2d1/0x830
[20976.452414] schedule+0x35/0xa0
[20976.455559] schedule_preempt_disabled+0xa/0x10
[20976.460090] __mutex_lock.isra.7+0x310/0x420
[20976.464364] device_del+0x36/0x3c0
[20976.467772] ice_unplug_aux_dev+0x1a/0x40 [ice]
[20976.472313] ice_lag_event_handler+0x2a2/0x520 [ice]
[20976.477288] notifier_call_chain+0x47/0x70
[20976.481386] __netdev_upper_dev_link+0x18b/0x280
[20976.489845] bond_enslave+0xe05/0x1790 [bonding]
[20976.494475] do_setlink+0x336/0xf50
[20976.502517] __rtnl_newlink+0x529/0x8b0
[20976.543441] rtnl_newlink+0x43/0x60
[20976.546934] rtnetlink_rcv_msg+0x2b1/0x360
[20976.559238] netlink_rcv_skb+0x4c/0x120
[20976.563079] netlink_unicast+0x196/0x230
[20976.567005] netlink_sendmsg+0x204/0x3d0
[20976.570930] sock_sendmsg+0x4c/0x50
[20976.574423] ____sys_sendmsg+0x1eb/0x250
[20976.586807] ___sys_sendmsg+0x7c/0xc0
[20976.606353] __sys_sendmsg+0x57/0xa0
[20976.609930] do_syscall_64+0x5b/0x1a0
[20976.613598] entry_SYSCALL_64_after_hwframe+0x65/0xca
1. Command 'ip link ... set nomaster' causes that ice_plug_aux_dev()
is called from ice_service_task() context, aux device is created
and associated device->lock is taken.
2. Command 'ip link ... set master...' calls ice's notifier under
RTNL lock and that notifier calls ice_unplug_aux_dev(). That
function tries to take aux device->lock but this is already taken
by ice_plug_aux_dev() in step 1
3. Later ice_plug_aux_dev() tries to take RTNL lock but this is already
taken in step 2
4. Dead-lock
The patch fixes this issue by following changes:
- Bit ICE_FLAG_PLUG_AUX_DEV is kept to be set during ice_plug_aux_dev()
call in ice_service_task()
- The bit is checked in ice_clear_rdma_cap() and only if it is not set
then ice_unplug_aux_dev() is called. If it is set (in other words
plugging of aux device was requested and ice_plug_aux_dev() is
potentially running) then the function only clears the bit
- Once ice_plug_aux_dev() call (in ice_service_task) is finished
the bit ICE_FLAG_PLUG_AUX_DEV is cleared but it is also checked
whether it was already cleared by ice_clear_rdma_cap(). If so then
aux device is unplugged.
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Co-developed-by: Petr Oros <poros@redhat.com>
Signed-off-by: Petr Oros <poros@redhat.com>
Reviewed-by: Dave Ertman <david.m.ertman@intel.com>
Link: https://lore.kernel.org/r/20220310171641.3863659-1-ivecera@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Implement callbacks to check for stats and fetch port representor stats.
Stats are taken from RX/TX ring corresponding to port representor and show
the number of bytes/packets that were not offloaded.
To see slow path stats run:
ifstat -x cpu_hits -a
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
ice_misc_intr() is an irq handler. It should not sleep.
Use GFP_ATOMIC instead of GFP_KERNEL when allocating some memory.
Fixes: 348048e724 ("ice: Implement iidc operations")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Tested-by: Leszek Kaliszczuk <leszek.kaliszczuk@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
When a bonded interface is destroyed, .ndo_change_mtu can be called
during the tear-down process while the RTNL lock is held. This is a
problem since the auxiliary driver linked to the LAN driver needs to be
notified of the MTU change, and this requires grabbing a device_lock on
the auxiliary_device's dev. Currently this is being attempted in the
same execution context as the call to .ndo_change_mtu which is causing a
dead-lock.
Move the notification of the changed MTU to a separate execution context
(watchdog service task) and eliminate the "before" notification.
Fixes: 348048e724 ("ice: Implement iidc operations")
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Jonathan Toppins <jtoppins@redhat.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice driver stores VF structures in a simple array which is allocated
once at the time of VF creation. The VF structures are then accessed
from the array by their VF ID. The ID must be between 0 and the number
of allocated VFs.
Multiple threads can access this table:
* .ndo operations such as .ndo_get_vf_cfg or .ndo_set_vf_trust
* interrupts, such as due to messages from the VF using the virtchnl
communication
* processing such as device reset
* commands to add or remove VFs
The current implementation does not keep track of when all threads are
done operating on a VF and can potentially result in use-after-free
issues caused by one thread accessing a VF structure after it has been
released when removing VFs. Some of these are prevented with various
state flags and checks.
In addition, this structure is quite static and does not support a
planned future where virtualization can be more dynamic. As we begin to
look at supporting Scalable IOV with the ice driver (as opposed to just
supporting Single Root IOV), this structure is not sufficient.
In the future, VFs will be able to be added and removed individually and
dynamically.
To allow for this, and to better protect against a whole class of
use-after-free bugs, replace the VF storage with a combination of a hash
table and krefs to reference track all of the accesses to VFs through
the hash table.
A hash table still allows efficient look up of the VF given its ID, but
also allows adding and removing VFs. It does not require contiguous VF
IDs.
The use of krefs allows the cleanup of the VF memory to be delayed until
after all threads have released their reference (by calling ice_put_vf).
To prevent corruption of the hash table, a combination of RCU and the
mutex table_lock are used. Addition and removal from the hash table use
the RCU-aware hash macros. This allows simple read-only look ups that
iterate to locate a single VF can be fast using RCU. Accesses which
modify the hash table, or which can't take RCU because they sleep, will
hold the mutex lock.
By using this design, we have a stronger guarantee that the VF structure
can't be released until after all threads are finished operating on it.
We also pave the way for the more dynamic Scalable IOV implementation in
the future.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
We maintain a number of values for VFs within the ice_pf structure. This
includes the VF table, the number of allocated VFs, the maximum number
of supported SR-IOV VFs, the number of queue pairs per VF, the number of
MSI-X vectors per VF, and a bitmap of the VFs with detected MDD events.
We're about to add a few more variables to this list. Clean this up
first by extracting these members out into a new ice_vfs structure
defined in ice_virtchnl_pf.h
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice_for_each_vf macro is intended to be used to loop over all VFs.
The current implementation relies on an iterator that is the index into
the VF array in the PF structure. This forces all users to perform a
look up themselves.
This abstraction forces a lot of duplicate work on callers and leaks the
interface implementation to the caller. Replace this with an
implementation that includes the VF pointer the primary iterator. This
version simplifies callers which just want to iterate over every VF, as
they no longer need to perform their own lookup.
The "i" iterator value is replaced with a new unsigned int "bkt"
parameter, as this will match the necessary interface for replacing
the VF array with a hash table. For now, the bkt is the VF ID, but in
the future it will simply be the hash bucket index. Document that it
should not be treated as a VF ID.
This change aims to simplify switching from the array to a hash table. I
considered alternative implementations such as an xarray but decided
that the hash table was the simplest and most suitable implementation. I
also looked at methods to hide the bkt iterator entirely, but I couldn't
come up with a feasible solution that worked for hash table iterators.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The VSI structure contains a vf_id field used to associate a VSI with a
VF. This is used mainly for ICE_VSI_VF as well as partially for
ICE_VSI_CTRL associated with the VFs.
This API was designed with the idea that VFs are stored in a simple
array that was expected to be static throughout most of the driver's
life.
We plan on refactoring VF storage in a few key ways:
1) converting from a simple static array to a hash table
2) using krefs to track VF references obtained from the hash table
3) use RCU to delay release of VF memory until after all references
are dropped
This is motivated by the goal to ensure that the lifetime of VF
structures is accounted for, and prevent various use-after-free bugs.
With the existing vsi->vf_id, the reference tracking for VFs would
become somewhat convoluted, because each VSI maintains a vf_id field
which will then require performing a look up. This means all these flows
will require reference tracking and proper usage of rcu_read_lock, etc.
We know that the VF VSI will always be backed by a valid VF structure,
because the VSI is created during VF initialization and removed before
the VF is destroyed. Rely on this and store a reference to the VF in the
VSI structure instead of storing a VF ID. This will simplify the usage
and avoid the need to perform lookups on the hash table in the future.
For ICE_VSI_VF, it is expected that vsi->vf is always non-NULL after
ice_vsi_alloc succeeds. Because of this, use WARN_ON when checking if a
vsi->vf pointer is valid when dealing with VF VSIs. This will aid in
debugging code which violates this assumption and avoid more disastrous
panics.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add a new ice_gnss.c file for holding the basic GNSS module functions.
If the device supports GNSS module, call the new ice_gnss_init and
ice_gnss_release functions where appropriate.
Implement basic functionality for reading the data from GNSS module
using TTY device.
Add I2C read AQ command. It is now required for controlling the external
physical connectors via external I2C port expander on E810-T adapters.
Future changes will introduce write functionality.
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Sudhansu Sekhar Mishra <sudhansu.mishra@intel.com>
Tested-by: Sunitha Mekala <sunithax.d.mekala@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit c503e63200 ("ice: Stop processing VF messages during teardown")
introduced a driver state flag, ICE_VF_DEINIT_IN_PROGRESS, which is
intended to prevent some issues with concurrently handling messages from
VFs while tearing down the VFs.
This change was motivated by crashes caused while tearing down and
bringing up VFs in rapid succession.
It turns out that the fix actually introduces issues with the VF driver
caused because the PF no longer responds to any messages sent by the VF
during its .remove routine. This results in the VF potentially removing
its DMA memory before the PF has shut down the device queues.
Additionally, the fix doesn't actually resolve concurrency issues within
the ice driver. It is possible for a VF to initiate a reset just prior
to the ice driver removing VFs. This can result in the remove task
concurrently operating while the VF is being reset. This results in
similar memory corruption and panics purportedly fixed by that commit.
Fix this concurrency at its root by protecting both the reset and
removal flows using the existing VF cfg_lock. This ensures that we
cannot remove the VF while any outstanding critical tasks such as a
virtchnl message or a reset are occurring.
This locking change also fixes the root cause originally fixed by commit
c503e63200 ("ice: Stop processing VF messages during teardown"), so we
can simply revert it.
Note that I kept these two changes together because simply reverting the
original commit alone would leave the driver vulnerable to worse race
conditions.
Fixes: c503e63200 ("ice: Stop processing VF messages during teardown")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The status of support for RDMA is currently being tracked with two
separate status flags. This is unnecessary with the current state of
the driver.
Simplify status tracking down to a single flag.
Rename the helper function to denote the RDMA specific status and
universally use the helper function to test the status bit.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Leszek Kaliszczuk <leszek.kaliszczuk@intel.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If a call to re-create the auxiliary device happens in a context that has
already taken the RTNL lock, then the call flow that recreates auxiliary
device can hang if there is another attempt to claim the RTNL lock by the
auxiliary driver.
To avoid this, any call to re-create auxiliary devices that comes from
an source that is holding the RTNL lock (e.g. netdev notifier when
interface exits a bond) should execute in a separate thread. To
accomplish this, add a flag to the PF that will be evaluated in the
service task and dealt with there.
Fixes: f9f5301e7e ("ice: Register auxiliary device to provide RDMA")
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Reviewed-by: Jonathan Toppins <jtoppins@redhat.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The driver was avoiding offload for IPIP (at least) frames due to
parsing the inner header offsets incorrectly when trying to check
lengths.
This length check works for VXLAN frames but fails on IPIP frames
because skb_transport_offset points to the inner header in IPIP
frames, which meant the subtraction of transport_header from
inner_network_header returns a negative value (-20).
With the code before this patch, everything continued to work, but GSO
was being used to segment, causing throughputs of 1.5Gb/s per thread.
After this patch, throughput is more like 10Gb/s per thread for IPIP
traffic.
Fixes: e94d447866 ("ice: Implement filter sync, NDO operations and bump version")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tony Nguyen says:
====================
100GbE Intel Wired LAN Driver Updates 2022-02-09
This series contains updates to ice driver only.
Brett adds support for QinQ. This begins with code refactoring and
re-organization of VLAN configuration functions to allow for
introduction of VSI VLAN ops to enable setting and calling of
respective operations based on device support of single or double
VLANs. Implementations are added for outer VLAN support.
To support QinQ, the device must be set to double VLAN mode (DVM).
In order for this to occur, the DDP package and NVM must also support
DVM. Functions to determine compatibility and properly configure the
device are added as well as setting the proper bits to advertise and
utilize the proper offloads. Support for VIRTCHNL_VF_OFFLOAD_VLAN_V2
is also included to allow for VF to negotiate and utilize this
functionality.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann says:
====================
pull-request: bpf-next 2022-02-09
We've added 126 non-merge commits during the last 16 day(s) which contain
a total of 201 files changed, 4049 insertions(+), 2215 deletions(-).
The main changes are:
1) Add custom BPF allocator for JITs that pack multiple programs into a huge
page to reduce iTLB pressure, from Song Liu.
2) Add __user tagging support in vmlinux BTF and utilize it from BPF
verifier when generating loads, from Yonghong Song.
3) Add per-socket fast path check guarding from cgroup/BPF overhead when
used by only some sockets, from Pavel Begunkov.
4) Continued libbpf deprecation work of APIs/features and removal of their
usage from samples, selftests, libbpf & bpftool, from Andrii Nakryiko
and various others.
5) Improve BPF instruction set documentation by adding byte swap
instructions and cleaning up load/store section, from Christoph Hellwig.
6) Switch BPF preload infra to light skeleton and remove libbpf dependency
from it, from Alexei Starovoitov.
7) Fix architecture-agnostic macros in libbpf for accessing syscall
arguments from BPF progs for non-x86 architectures,
from Ilya Leoshkevich.
8) Rework port members in struct bpf_sk_lookup and struct bpf_sock to be
of 16-bit field with anonymous zero padding, from Jakub Sitnicki.
9) Add new bpf_copy_from_user_task() helper to read memory from a different
task than current. Add ability to create sleepable BPF iterator progs,
from Kenny Yu.
10) Implement XSK batching for ice's zero-copy driver used by AF_XDP and
utilize TX batching API from XSK buffer pool, from Maciej Fijalkowski.
11) Generate temporary netns names for BPF selftests to avoid naming
collisions, from Hangbin Liu.
12) Implement bpf_core_types_are_compat() with limited recursion for
in-kernel usage, from Matteo Croce.
13) Simplify pahole version detection and finally enable CONFIG_DEBUG_INFO_DWARF5
to be selected with CONFIG_DEBUG_INFO_BTF, from Nathan Chancellor.
14) Misc minor fixes to libbpf and selftests from various folks.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (126 commits)
selftests/bpf: Cover 4-byte load from remote_port in bpf_sk_lookup
bpf: Make remote_port field in struct bpf_sk_lookup 16-bit wide
libbpf: Fix compilation warning due to mismatched printf format
selftests/bpf: Test BPF_KPROBE_SYSCALL macro
libbpf: Add BPF_KPROBE_SYSCALL macro
libbpf: Fix accessing the first syscall argument on s390
libbpf: Fix accessing the first syscall argument on arm64
libbpf: Allow overriding PT_REGS_PARM1{_CORE}_SYSCALL
selftests/bpf: Skip test_bpf_syscall_macro's syscall_arg1 on arm64 and s390
libbpf: Fix accessing syscall arguments on riscv
libbpf: Fix riscv register names
libbpf: Fix accessing syscall arguments on powerpc
selftests/bpf: Use PT_REGS_SYSCALL_REGS in bpf_syscall_macro
libbpf: Add PT_REGS_SYSCALL_REGS macro
selftests/bpf: Fix an endianness issue in bpf_syscall_macro test
bpf: Fix bpf_prog_pack build HPAGE_PMD_SIZE
bpf: Fix leftover header->pages in sparc and powerpc code.
libbpf: Fix signedness bug in btf_dump_array_data()
selftests/bpf: Do not export subtest as standalone test
bpf, x86_64: Fail gracefully on bpf_jit_binary_pack_finalize failures
...
====================
Link: https://lore.kernel.org/r/20220209210050.8425-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In order for the driver to support 802.1ad VLAN filtering and offloads,
it needs to advertise those VLAN features and also support modifying
those VLAN features, so make the necessary changes to
ice_set_netdev_features(). By default, enable CTAG insertion/stripping
and CTAG filtering for both Single and Double VLAN Modes (SVM/DVM).
Also, in DVM, enable STAG filtering by default. This is done by
setting the feature bits in netdev->features. Also, in DVM, support
toggling of STAG insertion/stripping, but don't enable them by
default. This is done by setting the feature bits in
netdev->hw_features.
Since 802.1ad VLAN filtering and offloads are only supported in DVM, make
sure they are not enabled by default and that they cannot be enabled
during runtime, when the device is in SVM.
Add an implementation for the ndo_fix_features() callback. This is
needed since the hardware cannot support multiple VLAN ethertypes for
VLAN insertion/stripping simultaneously and all supported VLAN filtering
must either be enabled or disabled together.
Disable inner VLAN stripping by default when DVM is enabled. If a VSI
supports stripping the inner VLAN in DVM, then it will have to configure
that during runtime. For example if a VF is configured in a port VLAN
while DVM is enabled it will be allowed to offload inner VLANs.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
In order to support configuring the device in Double VLAN Mode (DVM),
the DDP and FW have to support DVM. If both support DVM, the PF that
downloads the package needs to update the default recipes, set the
VLAN mode, and update boost TCAM entries.
To support updating the default recipes in DVM, add support for
updating an existing switch recipe's lkup_idx and mask. This is done
by first calling the get recipe AQ (0x0292) with the desired recipe
ID. Then, if that is successful update one of the lookup indices
(lkup_idx) and its associated mask if the mask is valid otherwise
the already existing mask will be used.
The VLAN mode of the device has to be configured while the global
configuration lock is held while downloading the DDP, specifically after
the DDP has been downloaded. If supported, the device will default to
DVM.
Co-developed-by: Dan Nowlin <dan.nowlin@intel.com>
Signed-off-by: Dan Nowlin <dan.nowlin@intel.com>
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add a new outer_vlan_ops member to the ice_vsi structure as outer VLAN
ops are only available when the device is in Double VLAN Mode (DVM).
Depending on the VSI type, the requirements for what operations to
use/allow differ.
By default all VSI's have unsupported inner and outer VSI VLAN ops. This
implementation was chosen to prevent unexpected crashes due to null
pointer dereferences. Instead, if a VSI calls an unsupported op, it will
just return -EOPNOTSUPP.
Add implementations to support modifying outer VLAN fields for VSI
context. This includes the ability to modify VLAN stripping, insertion,
and the port VLAN based on the outer VLAN handling fields of the VSI
context.
These functions should only ever be used if DVM is enabled because that
means the firmware supports the outer VLAN fields in the VSI context. If
the device is in DVM, then always use the outer_vlan_ops, else use the
vlan_ops since the device is in Single VLAN Mode (SVM).
Also, move adding the untagged VLAN 0 filter from ice_vsi_setup() to
ice_vsi_vlan_setup() as the latter function is specific to the PF and
all other VSI types that need an untagged VLAN 0 filter already do this
in their specific flows. Without this change, Flow Director is failing
to initialize because it does not implement any VSI VLAN ops.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Current operations act on inner VLAN fields. To support double VLAN, outer
VLAN operations and functions will be implemented. Add the "inner" naming
to existing VLAN operations to distinguish them from the upcoming outer
values and functions. Some spacing adjustments are made to align
values.
Note that the inner is not talking about a tunneled VLAN, but the second
VLAN in the packet. For SVM the driver uses inner or single VLAN
filtering and offloads and in Double VLAN Mode the driver uses the
inner filtering and offloads for SR-IOV VFs in port VLANs in order to
support offloading the guest VLAN while a port VLAN is configured.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Currently the proto argument is unused. This is because the driver only
supports 802.1Q VLAN filtering. This policy is enforced via netdev
features that the driver sets up when configuring the netdev, so the
proto argument won't ever be anything other than 802.1Q. However, this
will allow for future iterations of the driver to seemlessly support
802.1ad filtering. Begin using the proto argument and extend the related
structures to support its use.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add a new struct for VLAN related information. Currently this holds
VLAN ID and priority values, but will be expanded to hold TPID value.
This reduces the changes necessary if any other values are added in
future. Remove the action argument from these calls as it's always
ICE_FWD_VSI.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Incoming changes to support 802.1Q and/or 802.1ad VLAN filtering and
offloads require more flexibility when configuring VLANs. The VSI VLAN
interface will allow flexibility for configuring VLANs for all VSI
types. Add new files to separate the VSI VLAN ops and move functions to
make the code more organized.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
As stated in [1], dma_set_mask() with a 64-bit mask never fails if
dev->dma_mask is non-NULL.
So, if it fails, the 32 bits case will also fail for the same reason.
Simplify code and remove some dead code accordingly.
[1]: https://lkml.org/lkml/2021/6/7/398
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
XDP_TX workloads use a concept of Tx threshold that indicates the
interval of setting RS bit on descriptors which in turn tells the HW to
generate an interrupt to signal the completion of Tx on HW side. It is
currently based on a constant value of 32 which might not work out well
for various sizes of ring combined with for example batch size that can
be set via SO_BUSY_POLL_BUDGET.
Internal tests based on AF_XDP showed that most convenient setup of
mentioned threshold is when it is equal to quarter of a ring length.
Make use of recently introduced ICE_RING_QUARTER macro and use this
value as a substitute for ICE_TX_THRESH.
Align also ethtool -G callback so that next_dd/next_rs fields are up to
date in terms of the ring size.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20220125160446.78976-5-maciej.fijalkowski@intel.com
In current switchdev implementation, every VF PR is assigned to
individual ring on switchdev ctrl VSI. For slow-path traffic, there
is a mapping VF->ring done in software based on src_vsi value (by
calling ice_eswitch_get_target_netdev function).
With this change, HW solution is introduced which is more
efficient. For each VF, src MAC (VF's MAC) filter will be created,
which forwards packets to the corresponding switchdev ctrl VSI queue
based on src MAC address.
This filter has to be removed and then replayed in case of
resetting one VF. Keep information about this rule in repr->mac_rule,
thanks to that we know which rule has to be removed and replayed
for a given VF.
In case of CORE/GLOBAL all rules are removed
automatically. We have to take care of readding them. This is done
by ice_replay_vsi_adv_rule.
When driver leaves switchdev mode, remove all advanced rules
from switchdev ctrl VSI. This is done by ice_rem_adv_rule_for_vsi.
Flag repr->rule_added is needed because in some cases reset
might be triggered before VF sends request to add MAC.
Co-developed-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add support to enable flow-director filter when multiple TCs are
configured. Flow director filter can be configured using ethtool
(--config-ntuple option). When multiple TCs are configured, each
TC is mapped to an unique HW VSI. So VSI corresponding to queue
used in filter is identified and flow director context is updated
with correct VSI while configuring ntuple filter in HW.
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix an odd indent where some code was left indented, and causes smatch
to warn:
ice_log_pkg_init() warn: inconsistent indenting
While here, for consistency, add a break after the default case.
This commit has a Fixes: but we caught this while it was only in net-next.
Fixes: 247dd97d71 ("ice: Refactor status flow for DDP load")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Link: https://lore.kernel.org/r/20211221230538.2546315-1-jesse.brandeburg@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Implement support for the basic operations needed to enable the PTP
hardware clock on E822 devices.
This includes implementations for the various PHY access functions, as
well as the ability to start and stop the PHY timers. This is different
from the E810 device because the configuration depends on link speed, so
we cannot just start the PHYs immediately. We must wait until the link
is up to get proper values for the speed based initialization.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The PF reset does not reset PHC and PHY clocks so it's unnecessary to
stop them and reinitialize after the reset.
Configuring timestamping changes the VSI fields so it needs to be
performed after VSIs are initialized, which was not done in case of a
reset.
Suggested-by: Patrick Talbert <ptalbert@redhat.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Tested-by: Pasi Vaananen <pvaanane@redhat.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The driver had comments to the effect of: This flag should be set before
calling this function. While reviewing code it was found that there were
several violations of this policy, which could introduce hard to find
bugs or races.
Fix the violations of the "VSI DOWN state must be set before calling
ice_down" and make checking the state into code with a WARN_ON.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice hardware contains an embedded chip with firmware which can be
updated using devlink flash. The firmware which runs on this chip is
referred to as the Embedded Management Processor firmware (EMP
firmware).
Activating the new firmware image currently requires that the system be
rebooted. This is not ideal as rebooting the system can cause unwanted
downtime.
In practical terms, activating the firmware does not always require a
full system reboot. In many cases it is possible to activate the EMP
firmware immediately. There are a couple of different scenarios to
cover.
* The EMP firmware itself can be reloaded by issuing a special update
to the device called an Embedded Management Processor reset (EMP
reset). This reset causes the device to reset and reload the EMP
firmware.
* PCI configuration changes are only reloaded after a cold PCIe reset.
Unfortunately there is no generic way to trigger this for a PCIe
device without a system reboot.
When performing a flash update, firmware is capable of responding with
some information about the specific update requirements.
The driver updates the flash by programming a secondary inactive bank
with the contents of the new image, and then issuing a command to
request to switch the active bank starting from the next load.
The response to the final command for updating the inactive NVM flash
bank includes an indication of the minimum reset required to fully
update the device. This can be one of the following:
* A full power on is required
* A cold PCIe reset is required
* An EMP reset is required
The response to the command to switch flash banks includes an indication
of whether or not the firmware will allow an EMP reset request.
For most updates, an EMP reset is sufficient to load the new EMP
firmware without issues. In some cases, this reset is not sufficient
because the PCI configuration space has changed. When this could cause
incompatibility with the new EMP image, the firmware is capable of
rejecting the EMP reset request.
Add logic to ice_fw_update.c to handle the response data flash update
AdminQ commands.
For the reset level, issue a devlink status notification informing the
user of how to complete the update with a simple suggestion like
"Activate new firmware by rebooting the system".
Cache the status of whether or not firmware will restrict the EMP reset
for use in implementing devlink reload.
Implement support for devlink reload with the "fw_activate" flag. This
allows user space to request the firmware be activated immediately.
For the .reload_down handler, we will issue a request for the EMP reset
using the appropriate firmware AdminQ command. If we know that the
firmware will not allow an EMP reset, simply exit with a suitable
netlink extended ACK message indicating that the EMP reset is not
available.
For the .reload_up handler, simply wait until the driver has finished
resetting. Logic to handle processing of an EMP reset already exists in
the driver as part of its reset and rebuild flows.
Implement support for the devlink reload interface with the
"fw_activate" action. This allows userspace to request activation of
firmware without a reboot.
Note that support for indicating the required reset and EMP reset
restriction is not supported on old versions of firmware. The driver can
determine if the two features are supported by checking the device
capabilities report. I confirmed support has existed since at least
version 5.5.2 as reported by the 'fw.mgmt' version. Support to issue the
EMP reset request has existed in all version of the EMP firmware for the
ice hardware.
Check the device capabilities report to determine whether or not the
indications are reported by the running firmware. If the reset
requirement indication is not supported, always assume a full power on
is necessary. If the reset restriction capability is not supported,
always assume the EMP reset is available.
Users can verify if the EMP reset has activated the firmware by using
the devlink info report to check that the 'running' firmware version has
updated. For example a user might do the following:
# Check current version
$ devlink dev info
# Update the device
$ devlink dev flash pci/0000:af:00.0 file firmware.bin
# Confirm stored version updated
$ devlink dev info
# Reload to activate new firmware
$ devlink dev reload pci/0000:af:00.0 action fw_activate
# Confirm running version updated
$ devlink dev info
Finally, this change does *not* implement basic driver-only reload
support. I did look into trying to do this. However, it requires
significant refactor of how the ice driver probes and loads everything.
The ice driver probe and allocation flows were not designed with such
a reload in mind. Refactoring the flow to support this is beyond the
scope of this change.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
As all functions now return standard error codes, propagate the values
being returned instead of converting them to generic values.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
ice_status previously had a variable to contain these values where other
error codes had a variable as well. With ice_status now being an int,
there is no need for two variables to hold error values. In cases where
this occurs, remove one of the excess variables and use a single one.
Some initialization of variables are no longer needed and have been
removed.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Clean up code after changing ice_status to int. Rearrange to fix reverse
Christmas tree and pull lines up where applicable.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Replace uses of ice_status to, as equivalent as possible, error codes.
Remove enum ice_status and its helper conversion function as they are no
longer needed.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
To prepare for removal of ice_status, change the variables from
ice_status to int. This eases the transition when values are changed to
return standard int error codes over enum ice_status.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Remove the ice_stat_str() function which prints the string
representation of the ice_status error code. With upcoming changes
moving away from ice_status, there will be no need for this function.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Before this change, final state of the DDP pkg load process was
dependent on many variables such as: ice_status, pkg version,
ice_aq_err. The last one had be stored in hw->pkg_dwnld_status.
It was impossible to conclude this state just from ice_status, that's
why logging process of DDP pkg load in the caller was a little bit
complicated.
With this patch new status enum is introduced - ice_ddp_state.
It covers all the possible final states of the loading process.
What's tricky for ice_ddp_state is that not only
ICE_DDP_PKG_SUCCESS(=0) means that load was successful. Actually
three states mean that:
- ICE_DDP_PKG_SUCCESS
- ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED
- ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED
ice_is_init_pkg_successful can tell that information.
One ddp_state should not be used outside of ice_init_pkg which is
ICE_DDP_PKG_ALREADY_LOADED. It is more generic, it is used in
ice_dwnld_cfg_bufs to see if pkg is already loaded. At this point
we can't use one of the specific one (SAME_VERSION, COMPATIBLE,
NOT_SUPPORTED) because we don't have information on the package
currently loaded in HW (we are before calling ice_get_pkg_info).
We can get rid of hw->pkg_dwnld_status because we are immediately
mapping aq errors to ice_ddp_state in ice_dwnld_cfg_bufs.
Other errors like ICE_ERR_NO_MEMORY, ICE_ERR_PARAM are mapped the
generic ICE_DDP_PKG_ERR.
Suggested-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Some of the promiscuous mode functions take a boolean to indicate
set/clear, which affects readability. Refactor and provide an
interface for the promiscuous mode code with explicit set and clear
promiscuous mode operations.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The driver was zeroing live stats that could be fetched by
ndo_get_stats64 at any time. This could result in inconsistent
statistics, and the telltale sign was when reading stats frequently from
/proc/net/dev, the stats would go backwards.
Fix by collecting stats into a local, and delaying when we write to the
structure so it's not incremental.
Fixes: fcea6f3da5 ("ice: Add stats and ethtool support")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
If the hardware is constantly receiving unicast or broadcast packets
during driver load, the device previously counted many GLV_RDPC (VSI
dropped packets) events during init. This causes confusing dropped
packet statistics during driver load. The dropped packets counter
incrementing does stop once the driver finishes loading.
Avoid this problem by baselining our statistics at the end of driver
open instead of the end of probe.
Fixes: cdedef59de ("ice: Configure VSIs for Tx/Rx")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Allow support for 'enable_iwarp' and 'enable_roce' devlink params to turn
on/off iWARP or RoCE protocol support for E800 devices.
For example, a user can turn on iWARP functionality with,
devlink dev param set pci/0000:07:00.0 name enable_iwarp value true cmode runtime
This add an iWARP auxiliary rdma device, ice.iwarp.<>, under this PF.
A user request to enable both iWARP and RoCE under the same PF is rejected
since this device does not support both protocols simultaneously on the
same port.
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Tested-by: Leszek Kaliszczuk <leszek.kaliszczuk@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Currently, the vlan_promisc flag is used exclusively by VF VSI to
determine whether or not to toggle VLAN pruning along with
trusted/true-promiscuous mode. This is not needed for a couple of
reasons. First, trusted/true-promiscuous mode is only supposed to allow
all MAC filters within VLANs that a VF has added filters for, so VLAN
pruning should not be disabled. Second, the boolean argument makes the
function confusing and unintuitive. Remove this flag.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Some devices have support for loading the PHY FW and in some cases this
can fail. When this fails, the FW will set the corresponding bit in the
link info structure. Also, the FW will send a link event if the correct
link event mask bit is set. Add support for printing an error message
when the PHY FW load fails during any link configuration flow and the
link event flow.
Since ice_check_module_power() is already doing something very similar
add a new function ice_check_link_cfg_err() so any failures reported in
the link info's link_cfg_err member can be printed in this one function.
Also, add the new ICE_FLAG_PHY_FW_LOAD_FAILED bit to the PF's flags so
we don't constantly print this error message during link polling if the
value never changed.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Sunitha Mekala <sunithax.d.mekala@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add definition for VXLAN and Geneve dummy packet. Define VXLAN and
Geneve type of fields to match on correct UDP tunnel header.
Parse tunnel specific fields from TC tool like outer MACs, outer IPs,
outer destination port and VNI. Save values and masks in outer header
struct and move header pointer to inner to simplify parsing inner
values.
There are two cases for redirect action:
- from uplink to VF - TC filter is added on tunnel device
- from VF to uplink - TC filter is added on PR, for this case check if
redirect device is tunnel device
VXLAN example:
- create tunnel device
ip l add $VXLAN_DEV type vxlan id $VXLAN_VNI dstport $VXLAN_PORT \
dev $PF
- add TC filter (in switchdev mode)
tc filter add dev $VXLAN_DEV protocol ip parent ffff: flower \
enc_dst_ip $VF1_IP enc_key_id $VXLAN_VNI action mirred egress \
redirect dev $VF1_PR
Geneve example:
- create tunnel device
ip l add $GENEVE_DEV type geneve id $GENEVE_VNI dstport $GENEVE_PORT \
remote $GENEVE_IP
- add TC filter (in switchdev mode)
tc filter add dev $GENEVE_DEV protocol ip parent ffff: flower \
enc_key_id $GENEVE_VNI dst_ip $GENEVE1_IP action mirred egress \
redirect dev $VF1_PR
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Implement indirect notification mechanism to support offloading TC rules
on tunnel devices.
Keep indirect block list in netdev priv. Notification will call setting
tc cls flower function. For now we can offload only ingress type. Return
not supported for other flow block binder.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add support to add/delete channel specific filter using tc-flower.
For now, only supported action is "skip_sw hw_tc <tc_num>"
Filter criteria is specific to channel and it can be
combination of L3, L3+L4, L2+L4.
Example:
MATCH criteria Action
---------------------------
src and/or dest IPv4[6]/mask -> Forward to "hw_tc <tc_num>"
dest IPv4[6]/mask + dest L4 port -> Forward to "hw_tc <tc_num>"
dest MAC + dest L4 port -> Forward to "hw_tc <tc_num>"
src IPv4[6]/mask + src L4 port -> Forward to "hw_tc <tc_num>"
src MAC + src L4 port -> Forward to "hw_tc <tc_num>"
Adding tc-flower filter for channel using "hw_tc"
-------------------------------------------------
tc qdisc add dev <ethX> clsact
Above two steps are only needed the first time when adding
tc-flower filter.
tc filter add dev <ethX> protocol ip ingress prio 1 flower \
dst_ip 192.168.0.1/32 ip_proto tcp dst_port 5001 \
skip_sw hw_tc 1
tc filter show dev <ethX> ingress
filter protocol ip pref 1 flower chain 0
filter protocol ip pref 1 flower chain 0 handle 0x1 hw_tc 1
eth_type ipv4
ip_proto tcp
dst_ip 192.168.0.1
dst_port 5001
skip_sw
in_hw in_hw_count 1
Delete specific filter:
-------------------------
tc filter del dev <ethx> ingress pref 1 handle 0x1 flower
Delete All filters:
------------------
tc filter del dev <ethX> ingress
Co-developed-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add support in driver for TC_QDISC_SETUP_MQPRIO. This support
enables instantiation of channels in HW using existing MQPRIO
infrastructure which is extended to be offloadable. This
provides a mechanism to configure dedicated set of queues for
each TC.
Configuring channels using "tc mqprio":
--------------------------------------
tc qdisc add dev <ethX> root mqprio num_tc 3 map 0 1 2 \
queues 4@0 4@4 4@8 hw 1 mode channel
Above command configures 3 TCs having 4 queues each. "hw 1 mode channel"
implies offload of channel configuration to HW. When driver processes
configuration received via "ndo_setup_tc: QDISC_SETUP_MQPRIO", each
TC maps to HW VSI with specified queues.
User can optionally specify bandwidth min and max rate limit per TC
(see example below). If shaper params like min and/or max bandwidth
rate limit are specified, driver configures VSI specific rate limiter
in HW.
Configuring channels and bandwidth shaper parameters using "tc mqprio":
----------------------------------------------------------------
tc qdisc add dev <ethX> root mqprio \
num_tc 4 map 0 1 2 3 queues 4@0 4@4 4@8 4@12 hw 1 mode channel \
shaper bw_rlimit min_rate 1Gbit 2Gbit 3Gbit 4Gbit \
max_rate 4Gbit 5Gbit 6Gbit 7Gbit
Command to view configured TCs:
-----------------------------
tc qdisc show dev <ethX>
Deleting TCs:
------------
tc qdisc del dev <ethX> root mqprio
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add infrastructure required for "ndo_setup_tc:qdisc_mqprio".
ice_vsi_setup is modified to configure traffic classes based
on mqprio data received from the stack. This includes low-level
functions to configure min, max rate-limit parameters in hardware
for traffic classes. Each traffic class gets mapped to a hardware
channel (VSI) which can be individually configured with different
bandwidth parameters.
Co-developed-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
As part of support for E810 XXV devices, some device ids were
inadvertently left out. Add those missing ids.
Fixes: 195fb97766 ("ice: add additional E810 device id")
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
The driver was having trouble with unreliable latency when doing single
threaded ping-pong tests. This was root caused to the DIM algorithm
landing on a too slow interrupt value, which caused high latency, and it
was especially present when queues were being switched frequently by the
scheduler as happens on default setups today.
In attempting to improve this, we allow the upper rate limit for
interrupts to move to rate limit of 4 microseconds as a max, which means
that no vector can generate more than 250,000 interrupts per second. The
old config was up to 100,000. The driver previously tried to program the
rate limit too frequently and if the receive and transmit side were both
active on the same vector, the INTRL would be set incorrectly, and this
change fixes that issue as a side effect of the redesign.
This driver will operate from now on with a slightly changed DIM table
with more emphasis towards latency sensitivity by having more table
entries with lower latency than with high latency (high being >= 64
microseconds).
The driver also resets the DIM algorithm state with a new stats set when
there is no work done and the data becomes stale (older than 1 second),
for the respective receive or transmit portion of the interrupt.
Add a new helper for setting rate limit, which will be used more
in a followup patch.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Implement ndo_set_vf_rate to support setting of min_tx_rate and
max_tx_rate; set the appropriate bandwidth in the scheduler for the
node representing the specified VF VSI.
Co-developed-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Go through the code base and use ice_for_each_* macros. While at it,
introduce ice_for_each_xdp_txq() macro that can be used for looping over
xdp_rings array.
Commit is not introducing any new functionality.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Under rare circumstances there might be a situation where a requirement
of having XDP Tx queue per CPU could not be fulfilled and some of the Tx
resources have to be shared between CPUs. This yields a need for placing
accesses to xdp_ring inside a critical section protected by spinlock.
These accesses happen to be in the hot path, so let's introduce the
static branch that will be triggered from the control plane when driver
could not provide Tx queue dedicated for XDP on each CPU.
Currently, the design that has been picked is to allow any number of XDP
Tx queues that is at least half of a count of CPUs that platform has.
For lower number driver will bail out with a response to user that there
were not enough Tx resources that would allow configuring XDP. The
sharing of rings is signalled via static branch enablement which in turn
indicates that lock for xdp_ring accesses needs to be taken in hot path.
Approach based on static branch has no impact on performance of a
non-fallback path. One thing that is needed to be mentioned is a fact
that the static branch will act as a global driver switch, meaning that
if one PF got out of Tx resources, then other PFs that ice driver is
servicing will suffer. However, given the fact that HW that ice driver
is handling has 1024 Tx queues per each PF, this is currently an
unlikely scenario.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Optimize Tx descriptor cleaning for XDP. Current approach doesn't
really scale and chokes when multiple flows are handled.
Introduce two ring fields, @next_dd and @next_rs that will keep track of
descriptor that should be looked at when the need for cleaning arise and
the descriptor that should have the RS bit set, respectively.
Note that at this point the threshold is a constant (32), but it is
something that we could make configurable.
First thing is to get away from setting RS bit on each descriptor. Let's
do this only once NTU is higher than the currently @next_rs value. In
such case, grab the tx_desc[next_rs], set the RS bit in descriptor and
advance the @next_rs by a 32.
Second thing is to clean the Tx ring only when there are less than 32
free entries. For that case, look up the tx_desc[next_dd] for a DD bit.
This bit is written back by HW to let the driver know that xmit was
successful. It will happen only for those descriptors that had RS bit
set. Clean only 32 descriptors and advance the DD bit.
Actual cleaning routine is moved from ice_napi_poll() down to the
ice_xmit_xdp_ring(). It is safe to do so as XDP ring will not get any
SKBs in there that would rely on interrupts for the cleaning. Nice side
effect is that for rare case of Tx fallback path (that next patch is
going to introduce) we don't have to trigger the SW irq to clean the
ring.
With those two concepts, ring is kept at being almost full, but it is
guaranteed that driver will be able to produce Tx descriptors.
This approach seems to work out well even though the Tx descriptors are
produced in one-by-one manner. Test was conducted with the ice HW
bombarded with packets from HW generator, configured to generate 30
flows.
Xdp2 sample yields the following results:
<snip>
proto 17: 79973066 pkt/s
proto 17: 80018911 pkt/s
proto 17: 80004654 pkt/s
proto 17: 79992395 pkt/s
proto 17: 79975162 pkt/s
proto 17: 79955054 pkt/s
proto 17: 79869168 pkt/s
proto 17: 79823947 pkt/s
proto 17: 79636971 pkt/s
</snip>
As that sample reports the Rx'ed frames, let's look at sar output.
It says that what we Rx'ed we do actually Tx, no noticeable drops.
Average: IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil
Average: ens4f1 79842324.00 79842310.40 4678261.17 4678260.38 0.00 0.00 0.00 38.32
with tx_busy staying calm.
When compared to a state before:
Average: IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil
Average: ens4f1 90919711.60 42233822.60 5327326.85 2474638.04 0.00 0.00 0.00 43.64
it can be observed that the amount of txpck/s is almost doubled, meaning
that the performance is improved by around 90%. All of this due to the
drops in the driver, previously the tx_busy stat was bumped at a 7mpps
rate.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
With rings being split, it is now convenient to introduce a pointer to
XDP ring within the Rx ring. For XDP_TX workloads this means that
xdp_rings array access will be skipped, which was executed per each
processed frame.
Also, read the XDP prog once per NAPI and if prog is present, set up the
local xdp_ring pointer. Reading prog a single time was discussed in [1]
with some concern raised by Toke around dispatcher handling and having
the need for going through the RCU grace period in the ndo_bpf driver
callback, but ice currently is torning down NAPI instances regardless of
the prog presence on VSI.
Although the pointer to XDP ring introduced to Rx ring makes things a
lot slimmer/simpler, I still feel that single prog read per NAPI
lifetime is beneficial.
Further patch that will introduce the fallback path will also get a
profit from that as xdp_ring pointer will be set during the XDP rings
setup.
[1]: https://lore.kernel.org/bpf/87k0oseo6e.fsf@toke.dk/
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
There has been a long lasting issue of improper xdp_rings indexing for
XDP_TX and XDP_REDIRECT actions. Given that currently rx_ring->q_index
is mixed with smp_processor_id(), there could be a situation where Tx
descriptors are produced onto XDP Tx ring, but tail is never bumped -
for example pin a particular queue id to non-matching IRQ line.
Address this problem by ignoring the user ring count setting and always
initialize the xdp_rings array to be of num_possible_cpus() size. Then,
always use the smp_processor_id() as an index to xdp_rings array. This
provides serialization as at given time only a single softirq can run on
a particular CPU.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
While it was convenient to have a generic ring structure that served
both Tx and Rx sides, next commits are going to introduce several
Tx-specific fields, so in order to avoid hurting the Rx side, let's
pull out the Tx ring onto new ice_tx_ring and ice_rx_ring structs.
Rx ring could be handled by the old ice_ring which would reduce the code
churn within this patch, but this would make things asymmetric.
Make the union out of the ring container within ice_q_vector so that it
is possible to iterate over newly introduced ice_tx_ring.
Remove the @size as it's only accessed from control path and it can be
calculated pretty easily.
Change definitions of ice_update_ring_stats and
ice_fetch_u64_stats_per_ring so that they are ring agnostic and can be
used for both Rx and Tx rings.
Sizes of Rx and Tx ring structs are 256 and 192 bytes, respectively. In
Rx ring xdp_rxq_info occupies its own cacheline, so it's the major
difference now.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This field is dead and driver is not making any use of it. Simply remove
it.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
In the remove path, there is an attempt to free the aux_idx IDA whether
it was allocated or not. This can potentially cause a crash when
unloading the driver on systems that do not initialize support for RDMA.
But, this free cannot be gated by the status bit for RDMA, since it is
allocated if the driver detects support for RDMA at probe time, but the
driver can enter into a state where RDMA is not supported after the IDA
has been allocated at probe time and this would lead to a memory leak.
Initialize aux_idx to an invalid value and check for a valid value when
unloading to determine if an IDA free is necessary.
Fixes: d25a0fc41c ("ice: Initialize RDMA support")
Reported-by: Jun Miao <jun.miao@windriver.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Implement ndo_setup_tc net device callback for TC HW offload on PF device.
ndo_setup_tc provides support for HW offloading various TC filters.
Add support for configuring the following filter with tc-flower:
- default L2 filters (src/dst mac addresses, ethertype, VLAN)
- variations of L3, L3+L4, L2+L3+L4 filters using advanced filters
(including ipv4 and ipv6 addresses).
Allow for adding/removing TC flows when PF device is configured in
eswitch switchdev mode. Two types of actions are supported at the
moment: FLOW_ACTION_DROP and FLOW_ACTION_REDIRECT.
Co-developed-by: Priyalee Kushwaha <priyalee.kushwaha@intel.com>
Signed-off-by: Priyalee Kushwaha <priyalee.kushwaha@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
As resetting all VFs behaves mostly like creating new VFs also
eswitch infrastructure has to be recreated. The easiest way to
do that is to rebuild eswitch after resetting VFs.
Implement helper functions to start and stop all representors
queues. This is used to disable traffic on port representors.
In rebuild path:
- NAPI has to be disabled
- eswitch environment has to be set up
- new port representors have to be created, because the old
one had pointer to not existing VFs
- new control plane VSI ring should be remapped
- NAPI hast to be enabled
- rxdid has to be set to FLEX_NIC_2, because this descriptor id
support source_vsi, which is needed on control plane VSI queues
- port representors queues have to be started
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Only way to enable switchdev is to create VFs when the eswitch
mode is set to switchdev. Check if correct mode is set and
enable switchdev in function which creating VFs.
Disable switchdev when user change number of VFs to 0. Changing
eswitch mode back to legacy when VFs are created in switchdev
mode isn't allowed.
As switchdev takes care of managing filter rules, adding new
rules on VF is blocked.
In case of resetting VF driver has to update pointer in ice_repr
struct, because after reset VSI related things can change.
Co-developed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
New type of VSI has to be defined for switchdev control plane
VSI. Number of allocated Tx and Rx queue has to be equal to
amount of VFs, because each port representor should have one
Tx and Rx queue.
Also to not increase number of used irqs too much, control plane
VSI uses only one q_vector and handle all queues in one irq.
To allow handling all queues in one irq , new function to clean
msix for eswitch was introduced. This function will schedule napi
for each representor instead of scheduling it only for one like in
normal clean irq function.
Only one additional msix has to be requested. Always try to request
it in ice_ena_msix_range function.
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Switchdev environment has to be set up when user create VFs
and eswitch mode is switchdev. Release is done when user
delete all VFs.
Data path in this implementation is based on control plane VSI.
This VSI is used to pass traffic from port representors to
corresponding VFs and vice versa. Default TX rule has to be
added to forward packet to control plane VSI. This will redirect
packets from VFs which don't match other rules to control plane
VSI.
On RX side default rule is added on uplink VSI to receive all
traffic that doesn't match other rules. When setting switchdev
environment all other rules from VFs should be removed. Packet to
VFs will be forwarded by control plane VSI.
As VF without any mac rules can't send any packet because of
antispoof mechanism, VSI antispoof should be turned off on each VFs.
To send packet from representor to correct VSI, destination VSI
field in TX descriptor will have to be filled. Allow that by
setting destination override bit in control plane VSI security config.
Packet from VFs will be received on control plane VSI. Driver
should decide to which netdev forward the packet. Decision is
made based on src_vsi field from descriptor. There is a target
netdev list in control plane VSI struct which choose netdev
based on src_vsi number.
Co-developed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Keeping devlink port inside VSI data structure causes some issues.
Since VF VSI is released during reset that means that we have to
unregister devlink port and register it again every time reset is
triggered. With the new changes in devlink API it
might cause deadlock issues. After calling
devlink_port_register/devlink_port_unregister devlink API is going to
lock rtnl_mutex. It's an issue when VF reset is triggered in netlink
operation context (like setting VF MAC address or VLAN),
because rtnl_lock is already taken by netlink. Another call of
rtnl_lock from devlink API results in dead-lock.
By moving devlink port to PF/VF we avoid creating/destroying it
during reset. Since this patch, devlink ports are created during
ice_probe, destroyed during ice_remove for PF and created during
ice_repr_add, destroyed during ice_repr_rem for VF.
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Convert all Ethernet drivers from memcpy(... dev->addr_len)
to eth_hw_addr_set():
@@
expression dev, np;
@@
- memcpy(dev->dev_addr, np, dev->addr_len)
+ eth_hw_addr_set(dev, np)
In theory addr_len may not be ETH_ALEN, but we don't expect
non-Ethernet devices to live under this directory, and only
the following cases of setting addr_len exist:
- cxgb4 for mgmt device,
and the drivers which set it to ETH_ALEN: s2io, mlx4, vxge.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert Ethernet from ether_addr_copy() to eth_hw_addr_set():
@@
expression dev, np;
@@
- ether_addr_copy(dev->dev_addr, np)
+ eth_hw_addr_set(dev, np)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The messaging for unsupported module detection is different for
lenient mode and strict mode. Update the code to print the right
messaging for a given link mode.
Media topology conflict is not an error in lenient mode, so return
an error code only if not in lenient mode.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
DSCP a.k.a L3 QoS is only supported on certain devices. To enforce this,
this patch introduces a bitmap of features and helper functions.
The feature bitmap is set based on device IDs on driver init. Currently,
DSCP is the only feature in this bitmap, but there will be more in the
future. In the DCB netlink flow, check if the feature bit is set before
exercising DSCP.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Implement code to handle submission of APP TLV's
containing DSCP to TC mapping.
The first such mapping received on an interface
will cause that PF to switch to L3 DSCP QoS mode,
apply the default config for that mode, and apply
the received mapping.
Only one such mapping will be allowed per DSCP value,
and when the last DSCP mapping is deleted, the PF
will switch back into L2 VLAN QoS mode, applying the
appropriate default QoS settings.
L3 DSCP QoS mode will only be allowed in SW DCBx
mode, in other words, when the FW LLDP engine is
disabled. Commands that break this mutual exclusivity
will be blocked.
Co-developed-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Move devlink_registration routine to be the last command, when the
device is fully initialized.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PF pointer is always valid when PCI core calls its .shutdown() and
.remove() callbacks. There is no need to check it again.
Fixes: 837f08fdec ("ice: Add basic driver framework for Intel(R) E800 Series")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink_register() can't fail and always returns success, but all drivers
are obligated to check returned status anyway. This adds a lot of boilerplate
code to handle impossible flow.
Make devlink_register() void and simplify the drivers that use that
API call.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Vladimir Oltean <olteanv@gmail.com> # dsa
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In some circumstances, such as with bridging, it's possible that the
stack will add the device's own MAC address to its unicast address list.
If, later, the stack deletes this address, the driver will receive a
request to remove this address.
The driver stores its current MAC address as part of the VSI MAC filter
list instead of separately. So, this causes a problem when the device's
MAC address is deleted unexpectedly, which results in traffic failure in
some cases.
The following configuration steps will reproduce the previously
mentioned problem:
> ip link set eth0 up
> ip link add dev br0 type bridge
> ip link set br0 up
> ip addr flush dev eth0
> ip link set eth0 master br0
> echo 1 > /sys/class/net/br0/bridge/vlan_filtering
> modprobe -r veth
> modprobe -r bridge
> ip addr add 192.168.1.100/24 dev eth0
The following ping command fails due to the netdev->dev_addr being
deleted when removing the bridge module.
> ping <link partner>
Fix this by making sure to not delete the netdev->dev_addr during MAC
address sync. After fixing this issue it was noticed that the
netdev_warn() in .set_mac was overly verbose, so make it at
netdev_dbg().
Also, there is a possibility of a race condition between .set_mac and
.set_rx_mode. Fix this by calling netif_addr_lock_bh() and
netif_addr_unlock_bh() on the device's netdev when the netdev->dev_addr
is going to be updated in .set_mac.
Fixes: e94d447866 ("ice: Implement filter sync, NDO operations and bump version")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Liang Li <liali@redhat.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The userspace utility "driverctl" can be used to change/override the
system's default driver choices. This is useful in some situations
(buggy driver, old driver missing a device ID, trying a workaround,
etc.) where the user needs to load a different driver.
However, this is also prone to user error, where a driver is mapped
to a device it's not designed to drive. For example, if the ice driver
is mapped to driver iavf devices, the ice driver crashes.
Add a check to return an error if the ice driver is being used to
probe a virtual function.
Fixes: 837f08fdec ("ice: Add basic driver framework for Intel(R) E800 Series")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Most users of ndo_do_ioctl are ethernet drivers that implement
the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware
timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP.
Separate these from the few drivers that use ndo_do_ioctl to
implement SIOCBOND, SIOCBR and SIOCWANDEV commands.
This is a purely cosmetic change intended to help readers find
their way through the implementation.
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The E810 device supports programmable pins for enabling both input and
output events related to the PTP hardware clock. This includes both
output signals with programmable period, as well as timestamping of
events on input pins.
Add support for enabling these using the CONFIG_PTP_1588_CLOCK
interface.
This allows programming the software defined pins to take advantage of
the hardware clock features.
Signed-off-by: Maciej Machnikowski <maciej.machnikowski@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This patch is modeled after one by Scott Peterson for i40e.
Add tracepoints to the driver, via a new file ice_trace.h and some new
trace calls added in interesting places in the driver. Add some tracing
for DIMLIB to help debug interrupt moderation problems.
Performance should not be affected, and this can be very useful
for debugging and adding new trace events to paths in the future.
Note eBPF programs can attach to these events, as well as perf
can count them since we're attaching to the events subsystem
in the kernel.
Co-developed-by: Ben Shelton <benjamin.h.shelton@intel.com>
Signed-off-by: Ben Shelton <benjamin.h.shelton@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Trivial conflicts in net/can/isotp.c and
tools/testing/selftests/net/mptcp/mptcp_connect.sh
scaled_ppm_to_ppb() was moved from drivers/ptp/ptp_clock.c
to include/linux/ptp_clock_kernel.h in -next so re-apply
the fix there.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove the local variable since it's only used once. Instead, use it
directly.
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
There are some places where the scope of a variable can
be reduced so do that.
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add support for enabling Tx timestamp requests for outgoing packets on
E810 devices.
The ice hardware can support multiple outstanding Tx timestamp requests.
When sending a descriptor to hardware, a Tx timestamp request is made by
setting a request bit, and assigning an index that represents which Tx
timestamp index to store the timestamp in.
Hardware makes no effort to synchronize the index use, so it is up to
software to ensure that Tx timestamp indexes are not re-used before the
timestamp is reported back.
To do this, introduce a Tx timestamp tracker which will keep track of
currently in-use indexes.
In the hot path, if a packet has a timestamp request, an index will be
requested from the tracker. Unfortunately, this does require a lock as
the indexes are shared across all queues on a PHY. There are not enough
indexes to reliably assign only 1 to each queue.
For the E810 devices, the timestamp indexes are not shared across PHYs,
so each port can have its own tracking.
Once hardware captures a timestamp, an interrupt is fired. In this
interrupt, trigger a new work item that will figure out which timestamp
was completed, and report the timestamp back to the stack.
This function loops through the Tx timestamp indexes and checks whether
there is now a valid timestamp. If so, it clears the PHY timestamp
indication in the PHY memory, locks and removes the SKB and bit in the
tracker, then reports the timestamp to the stack.
It is possible in some cases that a timestamp request will be initiated
but never completed. This might occur if the packet is dropped by
software or hardware before it reaches the PHY.
Add a task to the periodic work function that will check whether
a timestamp request is more than a few seconds old. If so, the timestamp
index is cleared in the PHY, and the SKB is released.
Just as with Rx timestamps, the Tx timestamps are only 40 bits wide, and
use the same overall logic for extending to 64 bits of nanoseconds.
With this change, E810 devices should be able to perform basic PTP
functionality.
Future changes will extend the support to cover the E822-based devices.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add SIOCGHWTSTAMP and SIOCSHWTSTAMP ioctl handlers to respond to
requests to enable timestamping support. If the request is for enabling
Rx timestamps, set a bit in the Rx descriptors to indicate that receive
timestamps should be reported.
Hardware captures receive timestamps in the PHY which only captures part
of the timer, and reports only 40 bits into the Rx descriptor. The upper
32 bits represent the contents of GLTSYN_TIME_L at the point of packet
reception, while the lower 8 bits represent the upper 8 bits of
GLTSYN_TIME_0.
The networking and PTP stack expect 64 bit timestamps in nanoseconds. To
support this, implement some logic to extend the timestamps by using the
full PHC time.
If the Rx timestamp was captured prior to the PHC time, then the real
timestamp is
PHC - (lower_32_bits(PHC) - timestamp)
If the Rx timestamp was captured after the PHC time, then the real
timestamp is
PHC + (timestamp - lower_32_bits(PHC))
These calculations are correct as long as neither the PHC timestamp nor
the Rx timestamps are more than 2^32-1 nanseconds old. Further, we can
detect when the Rx timestamp is before or after the PHC as long as the
PHC timestamp is no more than 2^31-1 nanoseconds old.
In that case, we calculate the delta between the lower 32 bits of the
PHC and the Rx timestamp. If it's larger than 2^31-1 then the Rx
timestamp must have been captured in the past. If it's smaller, then the
Rx timestamp must have been captured after PHC time.
Add an ice_ptp_extend_32b_ts function that relies on a cached copy of
the PHC time and implements this algorithm to calculate the proper upper
32bits of the Rx timestamps.
Cache the PHC time periodically in all of the Rx rings. This enables
each Rx ring to simply call the extension function with a recent copy of
the PHC time. By ensuring that the PHC time is kept up to date
periodically, we ensure this algorithm doesn't use stale data and
produce incorrect results.
To cache the time, introduce a kworker and a kwork item to periodically
store the Rx time. It might seem like we should use the .do_aux_work
interface of the PTP clock. This doesn't work because all PFs must cache
this time, but only one PF owns the PTP clock device.
Thus, the ice driver will manage its own kthread instead of relying on
the PTP do_aux_work handler.
With this change, the driver can now report Rx timestamps on all
incoming packets.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add a new ice_ptp.c file for holding the basic PTP clock interface
functions. If the device supports PTP, call the new ice_ptp_init and
ice_ptp_release functions where appropriate.
If the function owns the hardware resource associated with the PTP
hardware clock, register with the PTP_1588_CLOCK infrastructure to
allocate a new clock object that represents the device hardware clock.
Implement basic functionality for reading and setting the clock time,
performing clock adjustments, and adjusting the clock frequency.
Future changes will introduce functionality for handling related
features including Tx and Rx timestamps.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
In order to support certain device features, including enabling the PTP
hardware clock, the ice driver needs to control some registers on the
device PHY.
These registers are accessed by sending sideband messages. For some
hardware, these messages must be sent over the device admin queue, while
other hardware has a dedicated control queue for the sideband messages.
Add the neighbor device message structure for sending a message to the
neighboring device. Where supported, initialize the sideband control
queue and handle cleanup.
Add a wrapper function for sending sideband control queue messages that
read or write a neighboring device register.
Because some devices send sideband messages over the AdminQ, also
increase the length of the admin queue to allow more messages to be
queued up. This is important because the sideband messages add
additional pressure on the AQ usage.
This support will be used in following patches to enable support for
CONFIG_1588_PTP_CLOCK.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
ice driver requires a programmable pipeline firmware package in order to
have a support for advanced features. Otherwise, driver falls back to so
called 'safe mode'. For that mode, ndo_bpf callback is not exposed and
when user tries to load XDP program, the following happens:
$ sudo ./xdp1 enp179s0f1
libbpf: Kernel error message: Underlying driver does not support XDP in native mode
link set xdp fd failed
which is sort of confusing, as there is a native XDP support, but not in
the current mode. Improve the user experience by providing the specific
ndo_bpf callback dedicated for safe mode which will make use of extack
to explicitly let the user know that the DDP package is missing and
that's the reason that the XDP can't be loaded onto interface currently.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Fixes: efc2214b60 ("ice: Add support for XDP")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Determine whether an unsupported power configuration is preventing link
establishment by storing and checking the link_cfg_err_byte. Print error
messages when module power levels are unsupported. Also add a new flag
bit to prevent spamming said error messages.
Co-developed-by: Jeb Cramer <jeb.j.cramer@intel.com>
Signed-off-by: Jeb Cramer <jeb.j.cramer@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
After performing a flash update, a device EMP reset may occur. This
reset will cause the newly downloaded firmware to be initialized. When
this happens, the driver still reports the previous NVM version
information.
This is because the NVM versions are cached within the hw structure.
This can be confusing, as the new firmware is in fact running in this
case.
Handle this by calling ice_init_nvm when rebuilding the driver state.
This will update the flash version information and ensures that the
current values are displayed when reporting the NVM versions to the
stack.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Requesting device firmware information while the device is busy cleaning
up after a reset can result in an unexpected failure:
This occurs because the command is attempting to access the device
AdminQ while it is down. Resolve this by having the command wait for
a while until the reset is complete. To do this, introduce
a reset_wait_queue and associated helper function "ice_wait_for_reset".
This helper will use the wait queue to sleep until the driver is done
rebuilding. Use of a wait queue is preferred because the potential sleep
duration can be several seconds.
To ensure that the thread wakes up properly, a new wake_up call is added
during all code paths which clear the reset state bits associated with
the driver rebuild flow.
Using this ensures that tools can request device information without
worrying about whether the driver is cleaning up from a reset.
Specifically, it is expected that a flash update could result in
a device reset, and it is better to delay the response for information
until the reset is complete rather than exit with an immediate failure.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Register ice client auxiliary RDMA device on the auxiliary bus per
PCIe device function for the auxiliary driver (irdma) to attach to.
It allows to realize a single RDMA driver (irdma) capable of working with
multiple netdev drivers over multi-generation Intel HW supporting RDMA.
There is no load ordering dependencies between ice and irdma.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add implementations for supporting iidc operations for device operation
such as allocation of resources and event notifications.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Probe the device's capabilities to see if it supports RDMA. If so, allocate
and reserve resources to support its operation; populate structures with
initial values.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Attempt to detect malicious VFs and, if suspected, log the information but
keep going to allow the user to take any desired actions.
Potentially malicious VFs are identified by checking if the VFs are
transmitting too many messages via the PF-VF mailbox which could cause an
overflow of this channel resulting in denial of service. This is done by
creating a snapshot or static capture of the mailbox buffer which can be
traversed and in which the messages sent by VFs are tracked.
Co-developed-by: Yashaswini Raghuram Prathivadi Bhayankaram <yashaswini.raghuram.prathivadi.bhayankaram@intel.com>
Signed-off-by: Yashaswini Raghuram Prathivadi Bhayankaram <yashaswini.raghuram.prathivadi.bhayankaram@intel.com>
Co-developed-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Co-developed-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Vignesh Sridhar <vignesh.sridhar@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
We were saving the return value from ice_vsi_manage_rss_lut(), but
the errors from that function are not critical so change it to
return void and remove the code that saved the value.
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The driver previously printed it's PCI address in
the name field for the pci resource, which when displayed
via /proc/iomem, would print the same thing twice.
It's more useful for debugging to see the driver name, as
most other modules do.
Here's a diff of before and after this change:
99100000-991fffff : 0000:3b:00.1
9a000000-a04fffff : PCI Bus 0000:3b
9a000000-9bffffff : 0000:3b:00.1
- 9a000000-9bffffff : 0000:3b:00.1
+ 9a000000-9bffffff : ice
9c000000-9dffffff : 0000:3b:00.0
- 9c000000-9dffffff : 0000:3b:00.0
+ 9c000000-9dffffff : ice
9e000000-9effffff : 0000:3b:00.1
9f000000-9fffffff : 0000:3b:00.0
a0000000-a000ffff : 0000:3b:00.1
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The ice driver has support for adaptive interrupt moderation, an
algorithm for tuning the interrupt rate dynamically. This algorithm
is based on various assumptions about ring size, socket buffer size,
link speed, SKB overhead, ethernet frame overhead and more.
The Linux kernel has support for a dynamic interrupt moderation
algorithm known as "dimlib". Replace the custom driver-specific
implementation of dynamic interrupt moderation with the kernel's
algorithm.
The Intel hardware has a different hardware implementation than the
originators of the dimlib code had to work with, which requires the
driver to use a slightly different set of inputs for the actual
moderation values, while getting all the advice from dimlib of
better/worse, shift left or right.
The change made for this implementation is to use a pair of values
for each of the 5 "slots" that the dimlib moderation expects, and
the driver will program those pairs when dimlib recommends a slot to
use. The currently implementation uses two tables, one for receive
and one for transmit, and the pairs of values in each slot set the
maximum delay of an interrupt and a maximum number of interrupts per
second (both expressed in microseconds).
There are two separate kinds of bugs fixed by using DIMLIB, one is
UDP single stream send was too slow, and the other is that 8K
ping-pong was going to the most aggressive moderation and has much
too high latency.
The overall result of using DIMLIB is that we meet or exceed our
performance expectations set based on the old algorithm.
Co-developed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add two new VSI states, one to track if a netdev for the VSI has been
allocated and the other to track if the netdev has been registered.
Call unregister_netdev/free_netdev only when the corresponding state
bits are set.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Remove the leading underscores in enum ice_pf_state. This is not really
communicating anything and is unnecessary. No functional change.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Conflicts:
MAINTAINERS
- keep Chandrasekar
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
- simple fix + trust the code re-added to param.c in -next is fine
include/linux/bpf.h
- trivial
include/linux/ethtool.h
- trivial, fix kdoc while at it
include/linux/skmsg.h
- move to relevant place in tcp.c, comment re-wrapped
net/core/skmsg.c
- add the sk = sk // sk = NULL around calls
net/tipc/crypto.c
- trivial
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In ice_suspend(), ice_clear_interrupt_scheme() is called, and then
irq_free_descs() will be eventually called to free irq and its descriptor.
In ice_resume(), ice_init_interrupt_scheme() is called to allocate new
irqs. However, in ice_rebuild_arfs(), struct irq_glue and struct cpu_rmap
maybe cannot be freed, if the irqs that released in ice_suspend() were
reassigned to other devices, which makes irq descriptor's affinity_notify
lost.
So call ice_free_cpu_rx_rmap() before ice_clear_interrupt_scheme(), which
can make sure all irq_glue and cpu_rmap can be correctly released before
corresponding irq and descriptor are released.
Fix the following memory leak.
unreferenced object 0xffff95bd951afc00 (size 512):
comm "kworker/0:1", pid 134, jiffies 4294684283 (age 13051.958s)
hex dump (first 32 bytes):
18 00 00 00 18 00 18 00 70 fc 1a 95 bd 95 ff ff ........p.......
00 00 ff ff 01 00 ff ff 02 00 ff ff 03 00 ff ff ................
backtrace:
[<0000000072e4b914>] __kmalloc+0x336/0x540
[<0000000054642a87>] alloc_cpu_rmap+0x3b/0xb0
[<00000000f220deec>] ice_set_cpu_rx_rmap+0x6a/0x110 [ice]
[<000000002370a632>] ice_probe+0x941/0x1180 [ice]
[<00000000d692edba>] local_pci_probe+0x47/0xa0
[<00000000503934f0>] work_for_cpu_fn+0x1a/0x30
[<00000000555a9e4a>] process_one_work+0x1dd/0x410
[<000000002c4b414a>] worker_thread+0x221/0x3f0
[<00000000bb2b556b>] kthread+0x14c/0x170
[<00000000ad2cf1cd>] ret_from_fork+0x1f/0x30
unreferenced object 0xffff95bd81b0a2a0 (size 96):
comm "kworker/0:1", pid 134, jiffies 4294684283 (age 13051.958s)
hex dump (first 32 bytes):
38 00 00 00 01 00 00 00 e0 ff ff ff 0f 00 00 00 8...............
b0 a2 b0 81 bd 95 ff ff b0 a2 b0 81 bd 95 ff ff ................
backtrace:
[<00000000582dd5c5>] kmem_cache_alloc_trace+0x31f/0x4c0
[<000000002659850d>] irq_cpu_rmap_add+0x25/0xe0
[<00000000495a3055>] ice_set_cpu_rx_rmap+0xb4/0x110 [ice]
[<000000002370a632>] ice_probe+0x941/0x1180 [ice]
[<00000000d692edba>] local_pci_probe+0x47/0xa0
[<00000000503934f0>] work_for_cpu_fn+0x1a/0x30
[<00000000555a9e4a>] process_one_work+0x1dd/0x410
[<000000002c4b414a>] worker_thread+0x221/0x3f0
[<00000000bb2b556b>] kthread+0x14c/0x170
[<00000000ad2cf1cd>] ret_from_fork+0x1f/0x30
Fixes: 769c500dcc ("ice: Add advanced power mgmt for WoL")
Signed-off-by: Yongxin Liu <yongxin.liu@windriver.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Checkpatch reports the following, fix it.
-----------------------------------------
drivers/net/ethernet/intel/ice/ice_main.c
-----------------------------------------
CHECK:BRACES: Blank lines aren't necessary before a close brace '}'
FILE: drivers/net/ethernet/intel/ice/ice_main.c:455:
+
+}
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Currently the driver is doing two unnecessary checks. First both ops are
checking if the VLAN ID passed in is less than VLAN_N_VID and second
both ops are checking to see if a port VLAN is configured on the VSI.
The first check is already handled by the 8021q driver so this is an
unnecessary check. The second check is unnecessary because the PF VSI is
never put into a port VLAN.
Remove these checks.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tracking of the rx_gro_dropped statistic was removed in
commit f73fc40327 ("ice: drop dead code in ice_receive_skb()").
Remove the associated variables and its reporting to ethtool stats.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Replace multiple instances of vsi->back and pi->phy with equivalent
local variables
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
In ice_init_phy_user_cfg, vsi is used only to get to hw. Remove this
and just use pi->hw
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Recent firmware supports a new "get PHY capabilities" mode
ICE_AQC_REPORT_DFLT_CFG which makes it unnecessary for the driver
to track and apply NVM based default link overrides.
If FW AQ API version supports it, use Report Default Configuration.
Add check function for Report Default Configuration support and update
accordingly.
Also change adv_phy_type_[lo|hi] to advert_phy_type[lo|hi] for
clarity.
Co-developed-by: Mateusz Pacuszka <mateuszx.pacuszka@intel.com>
Signed-off-by: Mateusz Pacuszka <mateuszx.pacuszka@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
When link is owned by manageability, the driver is not allowed to fiddle
with link. FW returns ICE_AQ_RC_EMODE if the driver attempts to do so.
This patch adds a new function ice_set_link which abstracts the call to
ice_aq_set_link_restart_an and provides a clean way to turn on/off link.
While making this change, I also spotted that an int variable was being
used to hold both an ice_status return code and the Linux errno return
code. This pattern more often than not results in the driver inadvertently
returning ice_status back to kernel which is a major boo-boo. Clean it up.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
For get PHY abilities AQ, the specification defines "report modes"
as "with media", "without media" and "active configuration". For
clarity, rename macros to align with the specification.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
struct ice_vsi has two fields, state and flags which seem to
be serving the same purpose. Consolidate them into one field
'state'.
enum ice_state is used to represent state information of the PF.
While some of these enum values can be use to represent VSI state,
it makes more sense to represent VSI state with its own enum. So
derive a new enum ice_vsi_state from ice_vsi_flags and ice_state
and use it. Also rename enum ice_state to ice_pf_state for clarity.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Currently ice_set/get_rss are used to set/get the RSS LUT and/or RSS
key. However nearly everywhere these functions are called only the LUT
or key are set/get. Also, making this change reduces how many things
ice_set/get_rss are doing. Fix this by adding ice_set/get_rss_lut and
ice_set/get_rss_key functions.
Also, consolidate all calls for setting/getting the RSS LUT and RSS Key
to use ice_set/get_rss_lut() and ice_set/get_rss_key().
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Update ice_aq_get_rss_lut() and ice_aq_set_rss_lut() to take a new
structure ice_aq_get_set_rss_params instead of passing individual
parameters. This is done for 2 reasons:
1. Reduce the number of parameters passed to the functions.
2. Reduce the amount of change required if the arguments ever need to be
updated in the future.
Also, reduce duplicate code that was checking for an invalid vsi_handle
and lut parameter by moving the checks to the lower level
__ice_aq_get_set_rss_lut().
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Change link misconfiguration message since the configuration
could be intended by the user.
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Once a netdev is registered, the corresponding network interface can
be immediately used by userspace utilities (like say NetworkManager).
This can be problematic if the driver technically isn't fully up yet.
Move netdev registration to the end of probe, as by this time the
driver data structures and device will be initialized as expected.
However, delaying netdev registration causes a failure in the aRFS flow
where netdev->reg_state == NETREG_REGISTERED condition is checked. It's
not clear why this check was added to begin with, so remove it.
Local testing didn't indicate any issues with this change.
The state bit check in ice_open was put in as a stop-gap measure to
prevent a premature interface up operation. This is no longer needed,
so remove it.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
As per the spec, the WoL control word read from the NVM should be
interpreted as port numbers, and not PF numbers. So when checking
if WoL supported, use the port number instead of the PF ID.
Also, ice_is_wol_supported doesn't really need a pointer to the pf
struct, but just needs a pointer to the hw instance.
Fixes: 769c500dcc ("ice: Add advanced power mgmt for WoL")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
There is a possibility of race between ice_open or ice_stop calls
performed by OS and reset handling routine both trying to modify VSI
resources. Observed scenarios:
- reset handler deallocates memory in ice_vsi_free_arrays and ice_open
tries to access it in ice_vsi_cfg_txq leading to driver crash
- reset handler deallocates memory in ice_vsi_free_arrays and ice_close
tries to access it in ice_down leading to driver crash
- reset handler clears port scheduler topology and sets port state to
ICE_SCHED_PORT_STATE_INIT leading to ice_ena_vsi_txq fail in ice_open
To prevent this additional checks in ice_open and ice_stop are
introduced to make sure that OS is not allowed to alter VSI config while
reset is in progress.
Fixes: cdedef59de ("ice: Configure VSIs for Tx/Rx")
Signed-off-by: Krzysztof Goreczny <krzysztof.goreczny@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
An incorrect NVM update procedure can result in the driver failing probe.
In this case, the recommended resolution method is to update the NVM
using the right procedure. However, if the driver fails probe, the user
will not be able to update the NVM. So do not fail probe on link/PHY
errors.
Fixes: 1a3571b593 ("ice: restore PHY settings on media insertion")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Correct reported warnings for "warning: expecting prototype for ...
Prototype was for ... instead"
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Enable returning FDIR completion status by checking the
ctrl_vsi Rx queue descriptor value.
To enable returning FDIR completion status from ctrl_vsi Rx queue,
COMP_Queue and COMP_Report of FDIR filter programming descriptor
needs to be properly configured. After program request sent to ctrl_vsi
Tx queue, ctrl_vsi Rx queue interrupt will be triggered and
completion status will be returned.
Driver will first issue request in ice_vc_fdir_add_fltr(), then
pass FDIR context to the background task in interrupt service routine
ice_vc_fdir_irq_handler() and finally deal with them in
ice_flush_fdir_ctx(). ice_flush_fdir_ctx() will check the descriptor's
value, fdir context, and then send back virtual channel message to VF
by calling ice_vc_add_fdir_fltr_post(). An additional timer will be
setup in case of hardware interrupt timeout.
Signed-off-by: Yahui Cao <yahui.cao@intel.com>
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Tested-by: Chen Bo <BoX.C.Chen@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
We are going to enable FDIR configure for AVF through virtual channel.
The first step is to add helper functions to support control VSI setup.
A control VSI will be allocated for a VF when AVF creates its
first FDIR rule through ice_vf_ctrl_vsi_setup().
The patch will also allocate FDIR rule space for VF's control VSI.
If a VF asks for flow director rules, then those should come entirely
from the best effort pool and not from the guaranteed pool. The patch
allow a VF VSI to have only space in the best effort rules.
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Signed-off-by: Yahui Cao <yahui.cao@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Tested-by: Chen Bo <BoX.C.Chen@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
dev_validate_mtu checks that mtu value specified by user is not less
than min mtu and not greater than max allowed mtu. It is being done
before calling the ndo_change_mtu exposed by driver, so remove these
redundant checks in ice_change_mtu.
Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Currently if the driver is unable to get all the MSI-X vectors it wants, it
falls back to the minimum configuration which equates to a single Tx/Rx
traffic queue pair. Instead of using the minimum configuration, if given
more vectors than the minimum, utilize those vectors for additional traffic
queues after accounting for other interrupts.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
This message indicates an error on close, not open.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Create set scheduler aggregator node and move for VSIs into respective
scheduler node. Max children per aggregator node is 64.
There are two types of aggregator node(s) created.
1. dedicated node for PF and _CTRL VSIs
2. dedicated node(s) for VFs.
As part of reset and rebuild, aggregator nodes are recreated and VSIs
are moved to respective aggregator node.
Having related VSIs in respective tree avoid starvation between PF and VF
w.r.t Tx bandwidth.
Co-developed-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Co-developed-by: Victor Raj <victor.raj@intel.com>
Signed-off-by: Victor Raj <victor.raj@intel.com>
Co-developed-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add the framework and initial implementation for receiving and processing
netdev bonding events. This is only the software support and the
implementation of the HW offload for bonding support will be coming at a
later time. There are some architectural gaps that need to be closed
before that happens.
Because this is a software only solution that supports in kernel bonding,
SR-IOV is not supported with this implementation.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Current implementation of netdev already contains xsk_buff_pools.
We no longer have to contain these structures in ice_vsi.
Refactor the code to operate on netdev-provided xsk_buff_pools.
Move scheduling napi on each queue to a separate function to
simplify setup function.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The check for a NULL pf pointer is moot since the earlier declaration and
assignment of struct device *dev already de-referenced the pointer. Also,
the only caller of ice_set_dflt_mib() already ensures pf is not NULL.
Cc: Dave Ertman <david.m.ertman@intel.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
Refactor the code according to the use of a flexible-array member in
struct ice_res_tracker, instead of a one-element array and use the
struct_size() helper to calculate the size for the allocations.
Also, notice that the code below suggests that, currently, two too many
bytes are being allocated with devm_kzalloc(), as the total number of
entries (pf->irq_tracker->num_entries) for pf->irq_tracker->list[] is
_vectors_ and sizeof(*pf->irq_tracker) also includes the size of the
one-element array _list_ in struct ice_res_tracker.
drivers/net/ethernet/intel/ice/ice_main.c:3511:
3511 /* populate SW interrupts pool with number of OS granted IRQs. */
3512 pf->num_avail_sw_msix = (u16)vectors;
3513 pf->irq_tracker->num_entries = (u16)vectors;
3514 pf->irq_tracker->end = pf->irq_tracker->num_entries;
With this change, the right amount of dynamic memory is now allocated
because, contrary to one-element arrays which occupy at least as much
space as a single object of the type, flexible-array members don't
occupy such space in the containing structure.
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.9-rc1/process/deprecated.html#zero-length-and-one-element-arrays
Built-tested-by: kernel test robot <lkp@intel.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Add a function to read the inactive netlist bank for version
information. To support this, refactor how we read the netlist version
data. Instead of using the firmware AQ interface with a module ID, read
from the flash as a flat NVM, using ice_read_flash_module.
This change requires a slight adjustment to the offset values used, as
reading from the flat NVM includes the type field (which was stripped by
firmware previously). Cleanup the macro names and move them to
ice_type.h. For clarity in how we calculate the offsets and so that
programmers can easily map the offset value to the data sheet, use
a wrapper macro to account for the offset adjustments.
Use the newly added ice_get_inactive_netlist_ver function to extract the
version data from the pending netlist module update. Add the stored
variants of "fw.netlist", and "fw.netlist.build" to the info version map
array.
With this change, we now report the "fw.netlist" and "fw.netlist.build"
versions into the stored section of the devlink info report. As with the
main NVM module versions, if there is no pending update, we report the
currently active values as stored.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
drivers/net/can/dev.c
b552766c87 ("can: dev: prevent potential information leak in can_fill_info()")
3e77f70e73 ("can: dev: move driver related infrastructure into separate subdir")
0a042c6ec9 ("can: dev: move netlink related code into seperate file")
Code move.
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
57ac4a31c4 ("net/mlx5e: Correctly handle changing the number of queues when the interface is down")
214baf2287 ("net/mlx5e: Support HTB offload")
Adjacent code changes
net/switchdev/switchdev.c
20776b465c ("net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP")
ffb68fc58e ("net: switchdev: remove the transaction structure from port object notifiers")
bae33f2b5a ("net: switchdev: remove the transaction structure from port attributes")
Transaction parameter gets dropped otherwise keep the fix.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The current MSI-X enablement logic tries to enable best-case MSI-X
vectors and if that fails we only support a bare-minimum set. This
includes a single MSI-X for 1 Tx and 1 Rx queue and a single MSI-X
for the OICR interrupt. Unfortunately, the driver fails to load when we
don't get as many MSI-X as requested for a couple reasons.
First, the code to allocate MSI-X in the driver tries to allocate
num_online_cpus() MSI-X for LAN traffic without caring about the number
of MSI-X actually enabled/requested from the kernel for LAN traffic.
So, when calling ice_get_res() for the PF VSI, it returns failure
because the number of available vectors is less than requested. Fix
this by not allowing the PF VSI to allocation more than
pf->num_lan_msix MSI-X vectors and pf->num_lan_msix Rx/Tx queues.
Limiting the number of queues is done because we don't want more than
1 Tx/Rx queue per interrupt due to performance conerns.
Second, the driver assigns pf->num_lan_msix = 2, to account for LAN
traffic and the OICR. However, pf->num_lan_msix is only meant for LAN
MSI-X. This is causing a failure when the PF VSI tries to
allocate/reserve the minimum pf->num_lan_msix because the OICR MSI-X has
already been reserved, so there may not be enough MSI-X vectors left.
Fix this by setting pf->num_lan_msix = 1 for the failure case. Then the
ICE_MIN_MSIX accounts for the LAN MSI-X and the OICR MSI-X needed for
the failure case.
Update the related defines used in ice_ena_msix_range() to align with
the above behavior and remove the unused RDMA defines because RDMA is
currently not supported. Also, remove the now incorrect comment.
Fixes: 152b978a1f ("ice: Rework ice_ena_msix_range")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Fix the driver to copy the MAC address configured in ndo_set_mac_address
into dev_addr, even if the MAC filter already exists in HW. In some
situations (e.g. bonding) the netdev's dev_addr could have been modified
outside of the driver, with no change to the HW filter, so the driver
cannot assume that they match.
Fixes: 757976ab16 ("ice: Fix check for removing/adding mac filters")
Signed-off-by: Nick Nunley <nicholas.d.nunley@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
All UDP tunnel port management is now routed via udp_tunnel_nic
infra directly. Remove the old callbacks.
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add space to the end of 'Unknown' string in order to avoid
concatenation with 'bps' string when formatting netdev log message.
Signed-off-by: Simon Perron Caissy <simon.perron.caissy@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
vlan_ena was introduced to track whether VLAN filters are enabled on
the device, but
1) checking for num_vlan > 1 already gives us this information, and is
currently used in this way throughout the code
2) the logic for vlan_ena is broken when multiple VLANs are active
Just remove vlan_ena and use num_vlan instead.
Signed-off-by: Nick Nunley <nicholas.d.nunley@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
While debugging a recent failure to update the flash of an ice device,
I found it helpful to add additional logging which helped determine the
root cause of the problem being a timeout issue.
Add some extra dev_dbg() logging messages which can be enabled using the
dynamic debug facility, including one for ice_aq_wait_for_event that
will use jiffies to capture a rough estimate of how long we waited for
the completion of a firmware command.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Brijesh Behera <brijeshx.behera@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
