Commit 0da36b9774 ("i40e: use DECLARE_BITMAP for state fields")
introduced changes in the way i40e works with state flags converting
them to bitmaps using kernel bitmap API. This change introduced a
regression due to a mistaken substitution using __I40E_VSI_DOWN instead
of __I40E_DOWN when testing state of a PF at i40e_reset_subtask()
function. This caused a flood in the kernel log with the follow message:
[49.013] i40e 0002:01:00.0: bad reset request 0x00000020
Commit d19cb64b92 ("i40e: separate PF and VSI state flags")
also introduced some misuse of the VSI and PF flags, so both could be
considered as the offenders.
This patch simply fixes the flags where it makes sense by changing
__I40E_VSI_DOWN to __I40E_DOWN.
Fixes: 0da36b9774 ("i40e: use DECLARE_BITMAP for state fields")
Fixes: d19cb64b92 ("i40e: separate PF and VSI state flags")
Reviewed-by: "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: "Mauro S. M. Rodrigues" <maurosr@linux.vnet.ibm.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The i40e driver has logic to handle only one Tx timestamp at a time,
using a state bit lock to avoid multiple requests at once.
It may be possible, if incredibly unlikely, that a Tx timestamp event is
requested but never completes. Since we use an interrupt scheme to
determine when the Tx timestamp occurred we would never clear the state
bit in this case.
Add an i40e_ptp_tx_hang() function similar to the already existing
i40e_ptp_rx_hang() function. This function runs in the watchdog routine
and makes sure we eventually recover from this case instead of
permanently disabling Tx timestamps.
Note: there is no currently known way to cause this without hacking the
driver code to force it.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There's no reason to pass a *vsi pointer if we already have the *pf
pointer in the only location where we call this function. Lets update
the signature and directly pass the *pf data structure pointer.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The hw_disabled_flags field was added as a way of signifying that
a feature was automatically or temporarily disabled. However, we
actually only use this for FDir features. Replace its use with new
_AUTO_DISABLED flags instead. This is more readable, because you aren't
setting an *_ENABLED flag to *disable* the feature.
Additionally, clean up a few areas where we used these bits. First, we
don't really need to set the auto-disable flag for ATR if we're fully
disabling the feature via ethtool.
Second, we should always clear the auto-disable bits in case they somehow
got set when the feature was disabled. However, avoid displaying
a message that we've re-enabled the feature.
Third, we shouldn't be re-enabling ATR in the SB ntuple add flow,
because it might have been disabled due to space constraints. Instead,
we should just wait for the fdir_check_and_reenable to be called by the
watchdog.
Overall, this change allows us to simplify some code by removing an
extra field we didn't need, and the result should make it more clear as
to what we're actually doing with these flags.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Instead of assuming our flags fit within an unsigned long, use
DECLARE_BITMAP which will ensure that we always allocate enough space.
Additionally, use __I40E_STATE_SIZE__ markers as the last element of the
enumeration so that the size of the BITMAP is compile-time assigned
rather than programmer-time assigned. This ensures that potential future
flag additions do not actually overrun the array. This is especially
important as 32bit systems would only have 32bit longs instead of 64bit
longs as we generally have assumed in the prior code.
This change also removes a dereference of the state fields throughout
the code, so it does have a bit of code churn. The conversions were
automated using sed replacements with an alternation
s/&(vsi->back|vsi|pf)->state/\1->state/
s/&adapter->vsi.state/adapter->vsi.state/
For debugfs, we modify the printing so that we can display chunks of the
state value on new lines. This ensures that we can print the entire set
of state values. Additionally, we now print them as 08lx to ensure that
they display nicely.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Avoid using the same named flags for both vsi->state and pf->state. This
makes code review easier, as it is more likely that future authors will
use the correct state field when checking bits. Previous commits already
found issues with at least one check, and possibly others may be
incorrect.
This reduces confusion as it is more clear what each flag represents,
and which flags are valid for which state field.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The delay was added because of a desire to ensure that the VF driver can
finish up removing. However, pci_disable_sriov already has its own
ssleep() call that will sleep for an entire second, so there is no
reason to add extra delay on top of this by using msleep here. In
practice, an msleep() won't have a huge impact on timing but there is no
real value in keeping it, so lets just simplify the code and remove it.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch corrects a major oversight in that we were not reprogramming the
ports after a reset. As a result we completely lost all of the Rx tunnel
offloads on receive including Rx checksum, RSS on inner headers, and ATR.
The fix for this is pretty standard as all we needed to do is reset the
filter bits to pending for all active filters and schedule the sync event.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The .index field of i40e_udp_port_config represents the udp port number.
Rename this variable to port so that it is more obvious.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
These flags represent the state of the VF at various times. Do not
spell them as _STAT_ which can be confusing to readers who may think
these refer to statistics.
Change-ID: I6bc092cd472e8276896a1fd7498aced2084312df
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This state bit was added as a way for DCB to avoid having to wait for
the queues to disable when handling LLDP events. The logic for this was
burried deep within stop Tx and stop Rx queue code. First, let's rename
it so that it does not appear to only affect Tx when infact it modifies
both Tx and Rx flow. Second we can move it up into the i40e_stop_rings()
function, and we can simply re-use the i40e_stop_rings_no_wait() so that
we don't have to bury the implementation as deep into the call stack.
An alternative might be to remove the state bit and instead attempt to
shut down everything directly in DCP flow. This, however, is not ideal
because it creates yet another separate shutdown routine that we'd have
to maintain. In the current implementation any changes will be made to
both flows.
Change-ID: I68e1ccb901af320862bca395e9c9746f08e8b17c
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When there are a lot of active VFs, it can take multiple seconds to
finish resetting all of them during certain flows., which can cause some
VFs to fail to wait long enough for the reset to occur. The user might
see messages like "Never saw reset" or "Reset never finished" and the VF
driver will stop functioning properly.
The naive solution would be to simply increase the wait timer. We can
get much more clever. Notice that i40e_reset_vf is run in a serialized
fashion, and includes lots of delays.
There are two prominent delays which take most of the time. First, when
we begin resetting VFs, we have multiple 10ms delays which accrue
because we reset each VF in a serial fashion. These delays accumulate to
almost 4 seconds when handling the maximum number of VFs (128).
Secondly, there is a massive 50ms delay for each time we disable queues
on a VSI. This delay is necessary to allow HW to finish disabling queues
before we restore functionality. However, just like with the first case,
we are paying the cost for each VF, rather than disabling all VFs and
waiting once.
Both of these can be fixed, but required some previous refactoring to
handle the special case. First, we will need the
i40e_vsi_wait_queues_disabled function which was previously DCB
specific. Second, we will need to implement our own
i40e_vsi_stop_rings_no_wait function which will handle the stopping of
rings without the delays.
Finally, implement an i40e_reset_all_vfs function, which will first
start the reset of all VFs, and pay the wait cost all at once, rather
than serially waiting for each VF before we start processing then next
one. After the VF has been reset, we'll disable all the VF queues, and
then wait for them to disable. Again, we'll organize the flow such that
we pay the wait cost only once.
Finally, after we've disabled queues we'll go ahead and begin restoring
VF functionality. The result is reducing the wait time by a large factor
and ensuring that VFs do not timeout when waiting in the VF driver.
Change-ID: Ia6e8cf8d98131b78aec89db78afb8d905c9b12be
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A future patch will need to be able to handle controlling queues without
waiting until all VSIs are handled. Factor out the direct queue
modification so that we can easily re-use this code. The result is also
a bit easier to read since we don't embed multiple single-letter loop
counters.
Change-ID: Id923cbfa43127b1c24d8ed4f809b1012c736d9ac
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We made some effort to reduce the RTNL lock scope when resetting and
rebuilding the PF. Unfortunately we still held the RTNL lock during the
VF reset operation, which meant that multiple PFs could not reset in
parallel due to the global lock. For now, further reduce the scope by
not holding the RTNL lock while resetting VFs. This allows multiple PFs
to reset in a timely manner.
Change-ID: I2fbf823a0063f24dff67676cad09f0bbf83ee4ce
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds tracepoints to the i40e and i40evf drivers to which
BPF programs can be attached for feature testing and verification.
It's expected that an attached BPF program will identify and count or
log some interesting subset of traffic. The bcc-tools package is
helpful there for containing all the BPF arcana in a handy Python
wrapper. Though you can make these tracepoints log trace messages, the
messages themselves probably won't be very useful (other to verify the
tracepoint is being called while you're debugging your BPF program).
The idea here is that tracepoints have such low performance cost when
disabled that we can leave these in the upstream drivers. This may
eventually enable the instrumentation of unmodified customer systems
should the need arise to verify a NIC feature is working as expected.
In general this enables one set of feature verification tools to be
used on these drivers whether they're built with the kernel or
separately.
Users are advised against using these tracepoints for anything other
than a diagnostic tool. They have a performance impact when enabled,
and their exact placement and form may change as we see how well they
work in practice for the purposes above.
Change-ID: Id6014a7322c0e6d08068114dd20bd156f2f6435e
Signed-off-by: Scott Peterson <scott.d.peterson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds padding to the start of frames to make room for headroom
for us to eventually start using build_skb. Right now we guarantee at
least NET_SKB_PAD + NET_IP_ALIGN, however we allocate more space if more is
available. For example on x86 the headroom should be 192 bytes.
On systems that have too large of a cache line size to support storing 1.5K
padding and shared info we default to using 3K buffers and reserve
everything that isn't used for skb_shared_info or the data buffer for
headroom.
Change-ID: I33c641c9a1ea10cf7cc484c2d20985368d2d709a
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There are situations where adding padding to the front and back of an Rx
buffer will require that we add additional padding. Specifically if
NET_IP_ALIGN is non-zero, or the MTU size is larger than 7.5K we would need
to use 2K buffers which leaves us with no room for the padding.
To preemptively address these cases I am adding support for 3K buffers to
the Rx path so that we can provide the additional padding needed in the
event of NET_IP_ALIGN being non-zero or a cache line being greater than 64.
Change-ID: I938bc1ba611285428df39a613cd66f98e60b55c7
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The I40E_FLAG_NEED_LINK_UPDATE was never used. Remove the flag
definitions.
Change-ID: If59d0c6b4af85ca27281f3183c54b055adb439a4
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We can simply check both Tx and Rx queues in a single loop, rather than
repeating the loop twice.
Change-ID: Ic06f26b0e3c2620e0e33c1a2999edda488e647ad
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Look up the MAC address from the eth_get_platform_mac_address() function
first before checking what the firmware provides. We already handle the
case of re-writing the MAC-VLAN filter, so there is no need to add extra
code for this. However, update the comment where we do this to indicate
that it does impact the Open Firmware MAC address case.
Change-ID: I73e59fbe0b0e7e6f3ee9f5170d0bd3a4d5faf4db
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch greatly reduces the unneeded complexity in the
i40e_detect_recover_hung_queue code path. The previous implementation
set a 'hung bit' which would then get cleared while polling. If the
detection routine was called a second time with the bit already set, we
would issue a software interrupt. This patch makes it such that if
interrupts are disabled and we have pending TX descriptors, we trigger a
software interrupt since in, the worst case, queues are already clean
and we have an extra interrupt.
Additionally this patch removes the workaround for lost interrupts as
calling napi_reschedule in this context can cause software interrupts to
fire on the wrong CPU.
Change-ID: Iae108582a3ceb6229ed1d22e4ed6e69cf97aad8d
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Previously rtnl lock was held during whole reset procedure that
was stopping other PFs running their reset procedures. In the result
reset was not handled properly and host reset was the only way
to recover.
Change-ID: I23c0771c0303caaa7bd64badbf0c667e25142954
Signed-off-by: Maciej Sosin <maciej.sosin@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The client interface is only intended for use on devices that support
iWarp. Only register with the client if this is the case.
This fixes a panic when loading i40iw on X710 devices.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Reported-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When the driver is removed or shut down, close any attached clients
(i.e. i40iw). This prevents a panic seen sometimes on forced driver
removal or system shutdown when iWarp is running.
Change-ID: I4f6161e5a73ffbb2fd5883567b007310302bfcb5
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds a capability negotiation between VF and PF using ENCAP/
ENCAP_CSUM offload flags in order for the VF to support outer checksum
and TSO offloads for encapsulated packets. These capabilities were assumed
by default and enabled in current hardware. Going forward, these features
needs to be negotiated with PF before advertising to the stack.
Additionally, strip out the mac.type checks for X722 since outer checksums
are enabled based on the ENCAP_CSUM offload negotiation flag and maintain
consistency between drivers in how the features are configured.
Change-ID: Ie380a6f57eca557a2bb575b66b12fae36d308920
Signed-off-by: Preethi Banala <preethi.banala@intel.com>
Signed-off-by: Alan Brady <alan.brady@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mostly simple cases of overlapping changes (adding code nearby,
a function whose name changes, for example).
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds a delay to Rx queue disables to accommodate HW needs.
v2: Added missing check for disable only, additional details on the
need for the ugly delay and fixed spacing on comment.
Change-ID: I2864ca667ce5dcc2cc44f8718113b719742a46a1
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch changes the way we handle the maximum frame size for the Rx
path. Previously we were rounding up to 2K for a 1500 MTU and then brining
the max frame size down to MTU plus a fixed amount. With this patch
applied what we now do is limit the maximum frame to 1.5K minus the value
for NET_IP_ALIGN for standard MTU, and for any MTU greater than 1500 we
allow up to the maximum frame size. This makes the behavior more
consistent with the other drivers such as igb which had similar logic. In
addition it reduces the test matrix for MTU since we only have two max
frame sizes that are handled for Rx now.
Change-ID: I23a9d3c857e7df04b0ef28c64df63e659c013f3f
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The goto found here for when in MFP mode is pointless. It jumps to the
end of a series of if blocks. However, right after this statement is
a closing '}' for this if block, which will result in the program flow
going to the exact same location as the goto statement indicates. Thus,
regardless of whether we are in MFP mode, the program flow will resume
from the same location.
This arose due to various refactoring which did not notice that this
goto became essentially a no-op.
To properly understand this diff you will need to view a larger context
than is given by default.
Change-ID: I088f73c3831aa5c4e2281380c7a3ce605594300c
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Fix a case where we miss an arq element if a new one is added before we
enable interrupts and exit the arq subtask loop. This occurs frequently
with RDMA running on Windows VF and causes long delays that prevent SMB
from establishing connections.
Change-ID: I3e1c8b2b960c12857d9b8275bea2c1563674392e
Signed-off-by: Christopher N Bednarz <christopher.n.bednarz@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since FCoE isn't supported by the i40e products there isn't much point in
carrying around code that will always evaluate to false. This patch goes
through and strips out the code in several spots so that we don't go around
carrying variables and/or code that is always going to evaluate to false or
0.
Change-ID: I39d1d779c66c638b75525839db2b6208fdc809d7
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Looking over the code for FCoE it looks like the Rx path has been broken at
least since the last major Rx refactor almost a year ago. It seems like
FCoE isn't supported for any of the Fortville/Fortpark hardware so there
isn't much point in carrying the code around, especially if it is broken
and untested.
Change-ID: I892de8fa551cb129ce2361e738ff82ce55fa229e
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Removed no longer needed delays. At preproduction stage those delays were
needed but now these delays are not needed.
Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There exists a bug in the driver where the calculation of the
RSS size was not taking into account the number of traffic classes
enabled. This patch factors in the traffic classes both in
the initial configuration of the table as well as reconfiguration.
Change-ID: I34dcd345ce52faf1d6b9614bea28d450cfd5f621
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When testing the epoll w/ busy poll code I found that I could get into a
state where the i40e driver had q_vectors w/ active NAPI that had no rings.
This was resulting in a divide by zero error. To correct it I am updating
the driver code so that we only support NAPI on q_vectors that have 1 or
more rings allocated to them.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace a complex if->continue->else->break construction in
i40e_next_filter. We can simply use hlist_for_each_entry_continue
instead. This drops a lot of confusing code. The resulting code is much
easier to understand the intention, and follows the more normal pattern
for using hlist loops. We could have also used a break with a "return
next" at the end of the function, instead of return NULL, but the
current implementation is explicitly clear that when you reach the end
of the loop you get a NULL value. The alternative construction is less
clear since the reader would have to know that next is NULL at the end
of the loop.
Change-Id: Ife74ca451dd79d7f0d93c672bd42092d324d4a03
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Enable FDir filters for SCTPv4 packets using the ethtool ntuple
interface to enable filters. The ethtool API does not allow masking on
the verification tag.
Change-Id: I093e88a8143994c7e6f4b7b17a0bd5cf861d18e4
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add support for flexible payloads passed via ethtool user-def field.
This support is somewhat limited due to hardware design. The input set
can only be programmed once per filter type, and the flexible offset is
part of this filter input set. This means that the user cannot program
both a regular and a flexible filter at the same time for a given flow
type. Additionally, the user may not program two flexible filters of the
same flow type with different offsets, although they are allowed to
configure different values at that offset location.
We support a single flexible word (2byte) value per protocol type, and
we handle the FLX_PIT register using a list of flexible entries so that
each flow type may be configured separately.
Due to hardware implementation, the flexible data is offset from the
start of the packet payload, and thus may not be in part of the header
data. For this reason, the offset provided by the user defined data is
interpreted as a byte offset from the start of the matching payload.
Previous implementations have tried to represent the offset as from the
start of the frame, but this is not feasible because header sizes may
change due to options.
Change-Id: 36ed27995e97de63f9aea5ade5778ff038d6f811
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Ensure that the default input set is correctly reprogrammed when
cleaning up after disabling flow director support. This ensures that the
programmed value will be in a clean state.
Although we do not yet have support for SCTPv4 filters, a future patch
will add support for this protocol, so we will correctly restore the
SCTPv4 input set here as well. Note that strictly speaking the default
hardware value for SCTP includes matching the verification tag. However,
the ethtool API does not have support for specifying this value, so
there is no reason to keep the verification field enabled.
This patch is the next step on the way to enabling partial tuple filters
which will be implemented in a following patch.
Change-Id: Ic22e1c267ae37518bb036aca4a5694681449f283
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In preparation for adding code to properly check the mask values, we
will need to know the number of active filters for each type. Add
counters for each filter type. Rename the already existing fd_tcp_rule
to fd_tcp4_filter_cnt to match the style of other names. To avoid style
warnings, avoid assigning multiple parameters at once, and fix up one
other case where we did so previously.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When flushing and replaying FDIR filters, it is possible we would
disable ATR, and then re-enable it even though we should have kept
it disabled due to existing TCP/IPv4 filters. Fix this by checking
whether we have TCP4/IPv4 filters before re-enabling.
Alternatively, we could instead restore ATR and then replay filters,
however, this would cause us to rapidly enable and then disable ATR in
some cases.
Change-ID: I076e4cc1e4409bce7f98f3c213295433a4ff43d8
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Avinash Dayanand <avinash.dayanand@intel.com>
Reviewed-by: Alan Brady <alan.brady@intel.com>
Reviewed-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since we're about to reprogram the filters, we need to ensure that the
fd_tcp_rule count is correctly reset to 0. Otherwise, we will keep
a stale count that does not accurately reflect the number of programmed
TCPv4 filters.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
i40e_fdir_filter_restore re-adds all existing filters, which already
checks when adding a TCPv4 filter to disable ATR. We don't need to make
the check twice, so remove this redundant code.
Change-ID: Ia0b0690e23523915199d601494557def135c9d7f
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The firmware expects the port numbers for offloaded UDP tunnels in
Little Endian format. We accidentally sent the value in Big Endian
format which obviously will cause the wrong port number to be put into
the UDP tunnels list. This results in VxLAN and Geneve tunnel Rx
offloads being essentially disabled, unless the port number happens to
be identical after byte swapping. Note that i40e_aq_add_udp_tunnel()
will byteswap the parameter from host order into Little Endian so we
don't need worry about passing strictly a __le16 value to the command.
This patch essentially reverts b3f5c7bc88 ("i40e: Fix for extra byte
swap in tunnel setup", 2016-08-24), but in a way that makes the result
much more clear to the reader.
Fixes: b3f5c7bc88 ("i40e: Fix for extra byte swap in tunnel setup", 2016-08-24)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Williams, Mitch A <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The configurable priority to traffic class mapping and the user specified
queue ranges are used to configure the traffic class, overriding the
hardware defaults when the 'hw' option is set to 0. However, when the 'hw'
option is non-zero, the hardware QOS defaults are used.
This patch makes it so that we can pass the data the user provided to
ndo_setup_tc. This allows us to pull in the queue configuration if the
user requested it as well as any additional hardware offload type
requested by using a value other than 1 for the hw value.
Finally it also provides a means for the device driver to return the level
supported for the offload type via the qopt->hw value. Previously we were
just always assuming the value to be 1, in the future values beyond just 1
may be supported.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A previous commit introduced a field that tracks the features
that are disabled due to HW resource limitations as opposed
to the featured disabled by the user. This patch changes the
name of the field to make it more readable since it might get
confusing when looking at code containing both the flags
field and the auto_disable_features field together.
Change-ID: Idcc9888659698f6fe3ccff17c8c3f09b5026f708
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch clarifies the reason for removal of automatically
firmware-generated filter and explicit addition of filter which
accepts frames with any VLAN id.
Change-ID: Iabf180b6d61c4d8a36d3bcf8457c377a6f2aca0e
Signed-off-by: Filip Sadowski <filip.sadowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch fixes the issue that RSS offloading only works on PF0 by
using the direct register writing of the hash keys for the VFs instead
of using the admin queue command to do so.
Change-ID: Ia02cda7dbaa23def342e8786097a2c03db6f580b
Signed-off-by: Lihong Yang <lihong.yang@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This is a solution to avoid adding too many queues to num_lan_msix.
A recent refactor of queue pairs accidentally added all remaining
vectors to the num_lan_msix which can have adverse performance issues,
due to enabling more queues than the number of CPU cores.
This patch removes the old calculation, and replaces it with a simple
algorithm.
1) add queue pairs up to num_online_cpus(), but capped at half of total
vectors
2) then add alternative features such as flow directory and similar
3) finally, add the remaining vectors back to queue pairs, but capped
such that the total number of queue pairs does not exceed
num_online_cpus().
Change-ID: I668abf67d5011a1248866daba8885f4ff00cb8d9
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(KISS is Keep It Simple, Stupid. Or is it?)
The client interface vastly overengineered for what it needs to do.
It was originally designed to support multiple clients on multiple
netdevs, possibly even with multiple drivers. None of this happened,
and now we know that there will only ever be one client for i40e
(i40iw) and one for i40evf (i40iwvf). So, time for some KISS. Since
i40e and i40evf are a Dynasty, we'll simplify this one to match the
VF interface.
First, be a Destroyer and remove all of the lists and locks required
to support multiple clients. Keep one static around to keep track of
one client, and track the client instances for each netdev in the
driver's pf (or adapter) struct. Now it's Almost Human.
Since we already know the client type is iWarp, get rid of any checks
for this. Same for VSI type - it's always going to be the same type,
so it's just a Parasite.
While we're at it, fix up some comments. This makes the function
headers actually match the functions.
These changes reduce code complexity, simplify maintenance,
squash some lurking timing bugs, and allow us to Rock and Roll All
Nite.
Change-ID: I1ea79948ad73b8685272451440a34507f9a9012e
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The following message is logged from time to time when using i40e:
NOHZ: local_softirq_pending 08
i40e may schedule napi from a workqueue. Afterwards, softirqs are not run
in a deterministic time frame. The problem is the same as what was
described in commit ec13ee8014 ("virtio_net: invoke softirqs after
__napi_schedule") and this patch applies the same fix to i40e.
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There exists an intermittent bug which causes the 'Link Detected'
field reported by the 'ethtool <iface>' command to be 'Yes' when
in fact, there is no link. This patch fixes the problem by
enabling temporary link polling when i40e_get_link_status returns
an error. This causes the driver to remember that an admin queue
command failed and polls, until the function returns with a success.
Change-Id: I64c69b008db4017b8729f3fc27b8f65c8fe2eaa0
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This ensures that the pvid which is stored in __le16 format is converted
to the CPU format. This will fix comparison issues on Big Endian
platforms.
Change-ID: I92c80d1315dc2a0f9f095d5a0c48d461beb052ed
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This call is made just prior to running i40e_link_event. In
i40e_link_event, we set hw->phy.get_link_info to true just prior to
calling i40e_get_link_status, which conveniently runs
i40e_update_link_info for us. Thus, we are running i40e_update_link_info
twice, which seems like something we don't need to do...
Change-ID: I36467a570f44b7546d218c99e134ff97c2709315
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds a call to the mac_address_write admin q function during
power down to update the PRTPM_SAH/SAL registers with the MC_MAG_EN bit
thus enabling multicast magic packet wakeup.
A FW workaround is needed to write the multicast magic wake up enable
bit in the PRTPM_SAH register. The FW expects the mac address write
admin q cmd to be called first with one of the WRITE_TYPE_LAA flags
and then with the multicast relevant flags.
*Note: This solution only works for X722 devices currently. A PFR will
clear the previously mentioned bit by default, but X722 has support for a
WOL_PRESERVE_ON_PFR flag which prevents the bit from being cleared. Once
other devices support this flag, this solution should work as well.
Change-ID: I51bd5b8535bd9051c2676e27c999c1657f786827
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There exists a bug in which the driver is unable to exit overflow
promiscuous mode after having added "too many" mac filters. It is
expected that after triggering overflow promiscuous, removing the
failed/extra filters should then disable overflow promiscuous mode.
The bug exists because we were intentionally skipping the sync_vsi_filter
path in cases where we were removing failed filters since they shouldn't
have been added to the firmware in the first place, however we still
need to go through the sync_vsi_filter code path to determine whether or
not it is ok to exit overflow promiscuous mode. This patch fixes the
bug by making sure we go through the sync_vsi_filter path in cases of
failed filters.
Change-ID: I634d249ca3e5fa50729553137c295e73e7722143
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Refactor how we add new filters to firmware to avoid a race condition
that can occur due to removing filters from the hash temporarily.
To understand the race condition, suppose that you have a number of MAC
filters, but have not yet added any VLANs. Now, add two VLANs in rapid
succession. A possible resulting flow would look something like the
following:
(1) lock hash for add VLAN
(2) add the new MAC/VLAN combos for each current MAC filter
(3) unlock hash
(4) lock hash for filter sync
(5) notice that we have a VLAN, so prepare to update all MAC filters
with VLAN=-1 to be VLAN=0.
(6) move NEW and REMOVE filters to temporary list
(7) unlock hash
(8) lock hash for add VLAN
(9) add new MAC/VLAN combos. Notice that no MAC filters are currently in
the hash list, so we don't add any VLANs <--- BUG!
(10) unlock hash
(11) sync the temporary lists to firmware
(12) lock hash for post-sync
(13) move the temporary elements back to the main list
....
Because we take filters out of the main hash into temporary lists, we
introduce a narrow window where it is possible that other callers to the
list will not see some of the filters which were previously added but
have not yet been finalized. This results in sometimes dropping VLAN
additions, and could also result in failing to add a MAC address on the
newly added VLAN.
One obvious way to avoid this race condition would be to lock the entire
firmware process. Unfortunately this does not work because adminq
firmware commands take a mutex which results in a sleep while atomic
BUG(). So, we can't use the simplest approach.
An alternative approach is to simply not remove the filters from the
hash list while adding. Instead, add an i40e_new_mac_filter structure
which we will use to track added filters. This avoids the need to remove
the filter from the hash list. We'll store a pointer to the original
i40e_mac_filter, along with our own copy of the state.
We won't update the state directly, so as to avoid race with other code
that may modify the state while under the lock. We are safe to read
f->macaddr and f->vlan since these only change in two locations. The
first is on filter creation, which must have already occurred. The
second is inside i40e_correct_vlan_filters which was previously run
after creation of this object and can't be run again until after. Thus,
we should be safe to read the MAC address and VLAN while outside the
lock.
We also aren't going to run into a use-after-free issue because the only
place where we free filters is when they are marked FAILED or when we
remove them inside the sync subtask. Since the subtask has its own
critical flag to prevent duplicate runs, we know this won't happen. We
also know that the only location to transition a filter from NEW to
FAILED is inside the subtask also, so we aren't worried about that
either.
Use the wrapper i40e_new_mac_filter for additions, and once we've
finalized the addition to firmware, we will update the filter state
inside a lock, and then free the wrapper structure.
In order to avoid a possible race condition with filter deletion, we
won't update the original filter state unless it is still
I40E_FILTER_NEW when we finish the firmware sync.
This approach is more complex, but avoids race conditions related to
filters being temporarily removed from the list. We do not need the same
behavior for deletion because we always unconditionally removed the
filters from the list regardless of the firmware status.
Change-Id: I14b74bc2301f8e69433fbe77ebca532db20c5317
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Fix a bug where we modified the mac_filter_hash while outside a lock,
when handling addition of broadcast filters.
Normally, we add filters to firmware by batching the additions into
lists and issuing 1 update for every few filters. Broadcast filters are
handled differently, by instead setting the broadcast promiscuous mode
flags. In order to make sure the 1<->1 mapping of filters in our
addition array lined up with filters in the hlist tmp_add_list, we had
to remove the filter and move it back to the main hash. However, we
didn't do this under lock, which could cause consistency problems for
the list.
Fix this by updating i40e_update_filter_state logic so that it knows to
avoid broadcast filters. This ensures that we don't have to remove the
filter separately, and can put it back using the normal flow.
Change-ID: Id288fade80b3e3a9a54b68cc249188cb95147518
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Store the FEC status bits from the link up event into the
hw_link_info structure.
Change-ID: I9a7b256f6dfb0dce89c2f503075d0d383526832e
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Currently i40e_bus_info has PCI device and function info only and log
messages print device number as bus number. Added field to provide bus
number info and modified log statements to print bus, device and
function information.
Change-ID: I811617cee2714cc0d6bade8d369f57040990756f
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch refactors the macro INTRL_USEC_TO_REG into a static inline
function and fixes a couple subtle bugs caused by the macro.
This patch fixes a bug which was caused by passing a bad register value
to the firmware. If enabling interrupt rate limiting, a non-zero value
for the rate limit must be used. Otherwise the firmware sets the
interrupt rate limit to the maximum value. Due to the limited
resolution of the register, attempting to set a value of 1, 2, or 3
would be rounded down to 0 and limiting was left enabled, causing
unexpected behavior.
This patch also fixes a possible bug in which using the macro itself can
introduce unintended side-affects because the macro argument is used
more than once in the macro definition (e.g. a variable post-increment
argument would perform a double increment on the variable).
Without this patch, attempting to set interrupt rate limits of 1, 2, or
3 results in unexpected behavior and future use of this macro could
cause subtle bugs.
Change-Id: I83ac842de0ca9c86761923d6e3a4d7b1b95f2b3f
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
I40E_MAC_X710 was supposed to be for 10G and I40E_MAC_XL710
was supposed to be for 40G. But function i40e_is_mac_710
sets I40E_MAC_XL710 for all device IDS, I40E_MAC_X710 is not
used at all. As there is nothing to compare there is no need
for this function. Thus deprecating this extra macro and
removing this function entirely and replacing it with a direct
check.
Change-ID: I7d1769954dccd574a290ac04adb836ebd156730e
Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Instead of using i40e_add_filter or i40e_del_filter directly, when
adding a MAC address, we should normally be using i40e_add_mac_filter or
i40e_del_mac_filter. These functions correctly handle the various cases
of VLAN mode or PVID settings. This ensures consistency and avoids the
issues that can occur with the recent addition of a WARN_ON() in
i40e_sync_vsi_filters.
Change-ID: I7fe62db063391fdd1180b2d6a6a3c5ab4307eeee
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Use __i40e_del_filter instead of using i40e_del_filter() which will
avoid doing an additional search to delete a filter we already have the
pointer for.
Change-ID: Iea5a7e3cafbf8c682ed9d3b6c69cf5ff53f44daf
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
These functions purpose is to add a new MAC filter correctly, whether
we're using VLANs or not. Their goal is to ensure that all active VLANs
get the new MAC filter. Rename them so that their intent is clear. They
function correctly regardless of whether we have any active VLANs or
only have I40E_VLAN_ANY filters. The new names convey how they function
in a more clear manner.
Change-ID: Iec1961f968c0223a7132724a74e26a665750b107
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This function won't be appreciably slower when in VLAN mode, so there is
no real reason to not just call it directly. In either case, we still
must search the full table for a MAC/VLAN pair. We do get to stop
searching a tiny bit early in the case of knowing we are not in VLAN
mode, but this is a minor savings and we can avoid the code complexity
by not having to worry about the check.
Change-ID: I533412195b3a42f51cf629e3675dd5145aea8625
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Fold the check for determining when to call i40e_put_mac_in_vlan directly
into the function so that we don't need to decide which function to use
ahead of time. This allows us to just call i40e_put_mac_in_vlan directly
without having to check ahead of time.
Change-ID: Ifff526940748ac14b8418be5df5a149502eed137
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Now that we have the separate i40e_(add|rm)_vlan_all_mac functions, we
should not be using the i40e_vsi_kill_vlan or i40e_vsi_add_vlan
functions when PVID is set or when VID is less than 1. This allows us to
remove some checks in i40e_vsi_add_vlan and ensures that callers which
need to handle VID=0 or VID=-1 don't accidentally invoke the VLAN mode
handling used to convert filters when entering VLAN mode. We also update
the functions to take u16 instead of s16 as well since they no longer
expect to be called with VID=I40E_VLAN_ANY.
Change-ID: Ibddf44a8bb840dde8ceef2a4fdb92fd953b05a57
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The network device operation for reading statistics is only called
in one place, and it ignores the return value. Having a structure
return value is potentially confusing because some future driver could
incorrectly assume that the return value was used.
Fix all drivers with ndo_get_stats64 to have a void function.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The .match_method field is a u8, so we shouldn't be casting to a u16,
and because it is only one byte, we do not need to byte swap anything.
Just assign the value directly. This avoids issues on Big Endian
architectures which would have byte swapped and then incorrectly
truncated the value.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Bimmy Pujari <bimmy.pujari@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In a similar fashion to how we handled exiting VLAN mode, move the logic
in i40e_vsi_add_vlan into i40e_sync_vsi_filters. Extract this logic into
its own function for ease of understanding as it will become quite
complex.
The new function, i40e_correct_mac_vlan_filters() correctly updates all
filters for when we need to enter VLAN mode, exit VLAN mode, and also
enforces the PVID when assigned.
Call i40e_correct_mac_vlan_filters from i40e_sync_vsi_filters passing it
the number of active VLAN filters, and the two temporary lists.
Remove the function for updating VLAN=0 filters from i40e_vsi_add_vlan.
The end result is that the logic for entering and exiting VLAN mode is
in one location which has the most knowledge about all filters. This
ensures that we always correctly have the non-VLAN filters assigned to
VID=0 or VID=-1 regardless of how we ended up getting to this result.
Additionally this enforces the PVID at sync time so that we know for
certain that an assigned PVID results in only filters with that PVID
will be added to the firmware.
Change-ID: I895cee81e9c92d0a16baee38bd0ca51bbb14e372
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The current flow for adding or updating the PVID for a VF uses
i40e_vsi_add_vlan and i40e_vsi_kill_vlan which each take, then release
the hash lock. In addition the two functions also must take special care
that they do not perform VLAN mode changes as this will make the code in
i40e_ndo_set_vf_port_vlan behave incorrectly.
Fix these issues by using the new helper functions i40e_add_vlan_all_mac
and i40e_rm_vlan_all_mac which expect the hash lock to already be taken.
Additionally these functions do not perform any state updates in regards
to VLAN mode, so they are safe to use in the PVID update flow.
It should be noted that we don't need the VLAN mode update code here,
because there are only a few flows here.
(a) we're adding a new PVID
In this case, if we already had VLAN filters the VSI is knocked
offline so we don't need to worry about pre-existing VLAN filters
(b) we're replacing an existing PVID
In this case, we can't have any VLAN filters except those with the old
PVID which we already take care of manually.
(c) we're removing an existing PVID
Similarly to above, we can't have any existing VLAN filters except
those with the old PVID which we already take care of correctly.
Because of this, we do not need (or even want) the special accounting
done in i40e_vsi_add_vlan, so use of the helpers is a saner alternative.
It also opens the door for a future patch which will refactor the flow
of i40e_vsi_add_vlan now that it is not needed in this function.
Change-ID: Ia841f63da94e12b106f41cf7d28ce8ce92f2ad99
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A future refactor of how the PF assigns a PVID to a VF will want to be
able to add and remove a block of filters by VLAN without worrying about
accidentally triggering the accounting for I40E_VLAN_ANY. Additionally
the PVID assignment would like to be able to batch several changes under
one use of the mac_filter_hash_lock.
Factor out the addition and deletion of a VLAN on all MACs into their
own function which i40e_vsi_(add|kill)_vlan can use. These new functions
expect the caller to take the hash lock, as well as perform any
necessary accounting for updating I40E_VLAN_ANY filters if we are now
operating under VLAN mode.
Change-ID: If79e5b60b770433275350a74b3f1880333a185d5
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Fix a subtle issue with the code for converting VID=-1 filters into VID=0
filters when adding a new VLAN. Previously the code deleted the VID=-1
filter, and then added a new VID=0 filter. In the rare case that the
addition fails due to -ENOMEM, we end up completely deleting the filter
which prevents recovery if memory pressure subsides. While it is not
strictly an issue because it is likely that memory issues would result
in many other problems, we shouldn't delete the filter until after the
addition succeeds.
Change-ID: Icba07ddd04ecc6a3b27c2e29f2c1c8673d266826
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The current caller of i40e_update_filter_state incorrectly passes
aq_ret, an i40e_status variable, instead of the expected aq_err. This
happens to work because i40e_status is actually just a typedef integer,
and 0 is still the successful return. However i40e_update_filter_state
has special handling for ENOSPC which is currently being ignored.
Also notice that firmware does not update the per-filter response for
many types of errors, such as EINVAL. Thus, modify the filter setup so
that the firmware response memory is pre-set with I40E_AQC_MM_ERR_NO_RES.
This enables us to refactor i40e_update_filter_state, removing the need
to pass aq_err and avoiding a need for having 3 different flows for
checking the filter state.
The resulting code for i40e_update_filter_state is much simpler, only
a single loop and we always check each filter response value every time.
Since we pre-set the response value to match our expected error this
correctly works for all success and error flows.
Change-ID: Ie292c9511f34ee18c6ef40f955ad13e28b7aea7d
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Previous code refactors have accidentally caused issues with the
counting of active_filters. Avoid similar issues in the future by simply
re-counting the active filters every time after we handle add and delete
of all the filters. Additionally this allows us to simplify the check
for when we exit promiscuous mode since we can combine the check for
failed filters at the same time.
Additionally since we recount filters at the end we need to set
vsi->promisc_threshold as well.
The resulting code takes a bit longer since we do have to loop over
filters again. However, the result is more readable and less likely to
become incorrect due to failed accounting of filters in the future.
Finally, this ensures that it is not possible for vsi->active_filters to
ever underflow since we never decrement it.
Change-ID: Ib4f3a377e60eb1fa6c91ea86cc02238c08edd102
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A product decision has been made to defeature detection of PTP frames
over L4 (UDP) on the XL710 MAC. Do not advertise support for L4
timestamping.
Change-ID: I41fbb0f84ebb27c43e23098c08156f2625c6ee06
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The service task lock was being set in the scheduling function, not the
actual service task. This would potentially leave the bit set for a long
time before the task actually ran. Furthermore, if the service task
takes too long, it calls the schedule function to reschedule itself -
which would fail to take the lock and do nothing.
Instead, set and clear the lock bit in the service task itself. In the
process, get rid of the i40e_service_event_complete() function, which is
really just two lines of code that can be put right in the service task
itself.
Change-ID: I83155e682b686121e2897f4429eb7d3f7c669168
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add support for 25G devices - defines and data structures.
One tricky part here is that the firmware support for these
Devices introduces a mismatch between the PHY type enum and
the bitfields for the phy types.
This change creates a macro and uses it to increment the 25G
PHY values when creating 25G bitfields.
Change-ID: I69b24d837d44cf9220bf5cb8dd46c5be89ce490b
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Before this patch "ethtool -p" was not blinking the LEDs on boards
with 1G BaseT PHYs.
This commit identifies 1G BaseT boards as having the LEDs connected
to the MAC. Also, renamed the flag to be more descriptive of usage.
The flag is now I40E_FLAG_PHY_CONTROLS_LEDS.
Change-ID: I4eb741da9780da7849ddf2dc4c0cb27ffa42a801
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The netdev->dev_addr MAC filter already exists in the
MAC/VLAN hash table, as it is added when we configure
the netdev in i40e_configure_netdev. Because we already
know that this address will be updated in the
hash_for_each loops, we do not need to handle it
specially. This removes duplicate code and simplifies
the i40e_vsi_add_vlan and i40e_vsi_kill_vlan functions.
Because we know these filters must be part of the
MAC/VLAN hash table, this should not have any functional
impact on what filters are included and is merely a code
simplification.
Change-ID: I5e648302dbdd7cc29efc6d203b7019c11f0b5705
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A previous commit 53cb6e9e89 ("i40e: Removal of workaround for simple
MAC address filter deletion") removed a workaround for some
firmware versions which was reported to not be necessary in production
NICs. Unfortunately this workaround is necessary in some configurations,
specifically the Ethernet Controller XL710 for 40GbE QSFP+ (8086:1583).
Without this patch, the mentioned NICs with current firmware exhibit
issues when adding VLANs, as outlined by the following reproduction:
$modprobe i40e
$ip link set <device> up
$ip link add link <device> vlan100 type vlan id 100
$dmesg | tail
<snip>
kernel: i40e 0000:82:00.0: Error I40E_AQ_RC_EINVAL adding RX
filters on PF, promiscuous mode forced on
This results in filters being marked as FAILED and setting the device in
promiscuous mode.
The root cause of receiving the -EINVAL error response appears to be due
to a conflict with the default MAC filter which still exists on the
default firmware for this device. Attempting to add a new VLAN filter on
the default MAC address conflicts with the IGNORE_VLAN setting on the
default rule.
Change-ID: I4d8f6d48ac5f60cfe981b3baad30eb4d7c170d61
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch makes the driver log link speed change. Before applying the
patch link messages were printed only on state change. Now message is
printed when link is brought up or down and when speed changes.
Change-ID: Ifbee14b4b16c24967450b3cecac6e8351dcc8f74
Signed-off-by: Filip Sadowski <filip.sadowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch changes an X722 informational message so that it only
appears when extra messages are desired. Without this patch,
on X722 devices, this message appears at load, potentially causing
unnecessary alarm.
Change-ID: I94f7aae15dc5b2723cc9728c630c72538a3e670e
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A previous workaround added to ensure receipt of all broadcast frames
incorrectly set the broadcast promiscuous mode unconditionally
regardless of active VLAN status.
Replace this partial workaround with a complete solution that sets the
broadcast promiscuous filters in i40e_sync_vsi_filters. This new method
sets the promiscuous mode based on when broadcast filters are added or
removed.
I40E_VLAN_ANY will request a broadcast filter for all VLANs, (as we're
in untagged mode) while a broadcast filter on a specific VLAN will only
request broadcast for that VLAN.
Thus, we restore addition of broadcast filter to the array, but we add
special handling for these such that they enable the broadcast
promiscuous mode instead of being sent as regular filters.
The end result is that we will correctly receive all broadcast packets
(even those with a *source* address equal to the broadcast address) but
will not receive packets for which we don't have an active VLAN filter.
Change-ID: I7d0585c5cec1a5bf55bf533b42e5e817d5db6a2d
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch fixes the problem where the ethtool Supported link
modes list backplane interfaces on X722 devices for 10GbE with
SFP+ and Cortina retimer. This patch fixes the problem by setting
and using a flag for this particular device since the backplane
interface is only between the internal PHY and the retimer and it
should not be seen by the user as they cannot use it.
Without this patch, the user wrongly thinks that backplane interfaces
are supported on their device when they actually are not.
Change-ID: I3882bc2928431d48a2db03a51a713a1f681a79e9
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A comment incorrectly referred to i40e_vsi_sync_filters_subtask which
does not actually exist. Reference the correct function instead.
Change-ID: I6bd805c605741ffb6fe34377259bb0d597edfafd
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Replace a check of magic number 4095 with VLAN_N_VID. This
makes it obvious that a later check against VLAN_N_VID is
always true and can be removed.
Change-ID: I28998f127a61a529480ce63d8a07e266f6c63b7b
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change makes it so that we are much more robust about defining what we
can and cannot offload. Previously we were just checking for the L4 tunnel
header length, however there are other fields we should be verifying as
there are multiple scenarios in which we cannot perform hardware offloads.
In addition the device only supports GSO as long as the MSS is 64 or
greater. We were not checking this so an MSS less than that was resulting
in Tx hangs.
Change-ID: I5e2fd5f3075c73601b4b36327b771c64fcb6c31b
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Removed some of unnecessary if statements and unreachable code found by
static code analysis tool.
The return value of i40e_vsi_control_rings(..., false) is always 0. So,
test for non-zero will never be true. The function has been split into
"int i40e_vsi_start_rings()" and "void i40e_vsi_stop_rings()" for better
understanding.
Similarly, the function i40e_vsi_kill_vlan() never fails. So, checking
for return value is also unnecessary. Function definition changed to void.
The i40e_loopback_test() function is not implemented. The function and
all references to loopback testing were removed.
Change-ID: Id45cf66f6689ce2bc4e887de13f073e30e8431bd
Signed-off-by: Filip Sadowski <filip.sadowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds a common method for finding a VSI by type. The main
motivation for doing this is that the Flow Director path actually had two
ways of handling this, one stopped on first match and one did not. This
patch makes it so that all callers of this function will get the same
approach for finding a VSI.
Change-ID: Ibf25de8acd8466582520694424aa87da66965fbd
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We duplicate some code around adding and deleting filters using the
adminq interface. This is prone to errors in case there are bugs. Use
functions which extract the logic to their own portion so that we don't
duplicate it twice in code.
Change-ID: I60d68aeb887976787dec00b23ab386a106e61465
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We determine that a VSI is in vlan_mode whenever it has any filters
with a VLAN other than -1 (I40E_VLAN_ALL). The previous method of doing
so was to perform a loop whenever we needed the check. However, we can
notice that only place where filters are added (i40e_add_filter) can
change the condition from false to true, and the only place we can
return to false is in i40e_vsi_sync_filters_subtask. Thus, we can remove
the loop and use a boolean directly.
Doing this avoids looping over filters repeatedly especially while we're
already inside a loop over all the filters. This should reduce the
latency of filter operations throughout the driver.
Change-ID: Iafde08df588da2a2ea666997d05e11fad8edc338
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Currently there exists a bug where adding at least one VLAN and then
removing all VLANs leaves the mac filters for the VSI with an incorrect
value for 'vid' which indicates the mac filter's VLAN status.
The current implementation for handling the removal of VLANs is wrong
for a couple reasons. The first is that when i40e_vsi_kill_vlan
iterates through the MAC filters, it fails to account for the MAC filter
status; i.e. it's not accommodating for filters that are about to be
deleted. The second problem is that MAC filters can be deleted in other
places (specifically i40e_set_rx_mode). Thus if it occurs that all the
VLAN MAC filters get deleted we need to switch out of VLAN mode, but the
code path through i40e_vsi_kill_vlan has already been executed and we're
now stuck in VLAN mode.
This patch fixes the issue by removing the check from i40e_vsi_kill_vlan
and puts the check instead in i40e_sync_vsi_filters where we're
guaranteed to see all filter deletions and can properly detect when we
need to switch out of VLAN mode.
Change-ID: Ib38fe6034b356eee9a0e20b8a9eeed5ff2debcd9
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Currently, we fail to correctly restore filters on the temporary add
list when we fail to allocate memory either for deletion or addition.
Replace calls to "goto out;" with calls to a new location that correctly
handles memory allocation failures.
Note that it is safe for us to call i40e_undo_filter_entries on the
tmp_del_list even after we've deleted filters because at this point it
will be empty, so we don't need to separate the logic for add and
delete failure.
Change-Id: Iee107fd219c6e03e2fd9645c2debf8e8384a8521
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Replace the mac_filter_list with a static size hash table of 8bits. The
primary advantage of this is a decrease in latency of operations related
to searching for specific MAC filters, including .set_rx_mode. Using
a linked list resulted in several locations which were O(n^2). Using
a hash table should give us latency growth closer to O(n*log(n)).
Change-ID: I5330bd04053b880e670210933e35830b95948ebb
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
When inside a loop where we call i40e_del_filter we use an O(n^2)
pattern where i40e_del_filter calls i40e_find_filter for us. We can
avoid this O(n^2) logic by factoring a function, __i40e_del_filter() out
from the i40e_del_filter code. This allows us to re-use the delete logic
where appropriate without having to search for the filter twice.
This new function benefits several functions including i40e_vsi_add_vlan,
i40e_vsi_kill_vlan, i40e_del_mac_vlan_all, and i40e_vsi_release.
Change-ID: I75fabe0f53bf73f56b80d342e5fdcfcc28f4d3eb
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When adding new MAC address filters, the driver determines if it should
behave in VLAN mode (where all MAC addresses get assigned to every
existing VLAN) or in non-VLAN mode where MAC addresses get assigned the
VLAN_ANY identifier. Under some circumstances it is possible that a VLAN
has been marked for removal (such that all filters of that VLAN are set
to I40E_FILTER_REMOVE), and a subsequent call to i40e_put_mac_in_vlan
may occur prior to the driver subtask that syncs filters to the
hardware.
In this case, we may add filters to the new removed VLAN, even though it
should have been removed. This is most obvious when first adding a new
VLAN. We will delete all filters which are in I40E_VLAN_ANY (-1) and
then re-add them as in VLAN 0 (untagged). Then before we sync filters,
we will add new MAC address filter, which will be added to every VLAN
that exists. Unfortunately, this will include I40E_VLAN_ANY, so we will
end up incorrectly adding filters to the -1 VLAN. This can be fixed by
simply skipping all filters which are marked for removal.
A similar check is not necessary in i40e_del_mac_all_vlan, since we are
deleting, and any filter which we find already marked for removal would
simply be deleted again, which doesn't cause any issues.
Change-Id: I7962154013ce02fe950584690aeeb3ed853d0086
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When a PVID has been assigned to a VSI, the function
i40e_put_mac_in_vlan arbitrarily modifies all filters
to have the same VLAN. This is obviously incorrect
because it could be modifying active filters without
putting them into the NEW state. The correct method
is to remove then re-add filters which is already done
in the code where we assign the PVID.
Fix this issue and a few other minor nits at the same
time. First, when we have a PVID don't even bother
looping and simply add the filter with the PVID immediately.
In the case of the loop, we now can remove several checks.
We also don't need to use i40e_find_filter first before
calling i40e_add_filter, since i40e_add_filter implicitly
does a lookup already.
Finally, update the return semantics of this function so
that on failure to add a filter it returns NULL, but on
success, it returns the last filter added. Otherwise,
we're just returning the last filter in the list. An
alternative fix might be to return 0 or an error code,
but this is pretty invasive to every call site.
Change-ID: I2325dfd843aec76d89fb0d7cb0e7c4f290a34840
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A future patch will be modifying these functions and making a call to
a static function which currently is defined after these functions. Move
them in a separate patch to ease review and ensure the moved code is
correct.
Change-ID: I2ca7fd4e10c0c07ed2291db1ea41bf5987fc6474
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The kernel provides __dev_uc_sync and __dev_mc_sync in order for drivers
which need individual notification of add and delete for each filter.
These functions allow us to vastly simplify our .set_rx_mode handler. We
need to implement two functions for sync and unsync which add and remove
filters respectively.
This change avoids a very complex and inefficient algorithm which
resulted in an abnormal latency for the .set_rx_mode NDO operation. The
resulting code after this change is more readable, more efficient, and
less code.
Due to the callback signature used by these functions we also must
update several other functions to take a const u8 * pointer.
Change-Id: I2ca7fd4e10c0c07ed2291db1ea41bf5987fc6474
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Originally the is_vf and is_netdev fields were added in order to
distinguish between VF and netdev filters in a single VSI. However, it
can be noted that we use separate VSI for SRIOV VFs and for netdev VSI.
Thus, since a single VSI should only ever have one type of filter, we
can simply remove the checks and remove the typing.
In a similar fashion, we can note that the only remaining way to get
multiple filters of a single type is through a debug command that was
added to debugfs. This command is useless in practice, and results in
causing bugs if we keep counter tracking but lose the is_vf and
is_netdev protections as desired above.
Since the only time we'd actually have a counter value besides 0 and
1 is through use of this debugfs hook, we can remove this unnecessary
command, and the entire counter logic it required.
We vastly simplify mac filters by removing
(a) the distinction between VF and netdev filters
(b) counting logic
(c) the ability to add and remove filters bypassing the stack via debugfs
Change-ID: Idf916dd2a1159b1188ddbab5bef6b85ea6bf27d9
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mostly simple overlapping changes.
For example, David Ahern's adjacency list revamp in 'net-next'
conflicted with an adjacency list traversal bug fix in 'net'.
Signed-off-by: David S. Miller <davem@davemloft.net>
So the i40e driver had a really convoluted configuration for how to handle
the debug flags contained in msg_level. Part of the issue is that the
driver has its own 32 bit mask that it was using to track a separate set of
debug features. From what I can tell it was trying to use the upper 4 bits
to determine if the value was meant to represent a bit-mask or the numeric
value provided by debug level.
What this patch does is clean this up by compressing those 4 bits into bit
31, as a result we just have to perform a check against the value being
negative to determine if we are looking at a debug level (positive), or a
debug mask (negative). The debug level will populate the msg_level, and
the debug mask will populate the debug_mask in the hardware struct.
I added similar logic for ethtool. If the value being provided has bit 31
set we assume the value being provided is a debug mask, otherwise we assume
it is a msg_enable mask. For displaying we only provide the msg_enable,
and if debug_mask is in use we will print it to the dmesg log.
Lastly I removed the debugfs interface. It is redundant with what we
already have in ethtool and really doesn't belong anyway.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Patch a036244c06 "i40e: Fix kernel panic on enable/disable LLDP"
introduced an error in bit logic.
Originally this bit manipulation was meant to clear two bits to indicate
that DCB was not enabled or capable. An "&" was incorrectly used instead
of an "|" bit operator to combine the two bitmasks into one. This also
created a static checker error since the resultant code was a no-op.
This patch fixes the error by using the correct bit-wise operator.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This is code refactoring. This patch removes the workaround which deleted
a default MAC filter added by the firmware when the interface was brought
up. This filter caused frames to pass disregarding the VLAN tagging.
It used to be automatically applied after reset in pre-SRA FW versions.
This workaround is not needed in production NICs and hence can be removed.
Change-ID: I129fe1aae1f17b5a224c9b29a996d916aa1be1ec
Signed-off-by: Filip Sadowski <filip.sadowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Ethtool -L option with the combined parameter is for changing the number of
multi-purpose channels of the specified network device. The pre-set maximum
for the combined channels is cpu dependent. Currently, for an i40e device,
when the user sets a value between 64 and the maximum that the cpu can
support for the combined parameter, the i40e driver displays the confusing
info in dmesg to only show 64 as the RSS count regardless of what the
accepted user input is as long as it is larger than 64.
This patch fixes the message in the i40e driver when the user uses
ethtool -L to change the number of the combined channels to consistently
display the user requested value if it is valid and accepted by ethtool.
Change-ID: Ia80a68bc844b779a49e0f76e7d3dcc915032d9af
Signed-off-by: Lihong Yang <lihong.yang@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There exists a bug in which a 'perfect storm' can occur and cause
interrupts to fail to be correctly affinitized. This causes unexpected
behavior and has a substantial impact on performance when it happens.
The bug occurs if there is heavy traffic, any number of CPUs that have
an i40e interrupt are pegged at 100%, and the interrupt afffinity for
those CPUs is changed. Instead of moving to the new CPU, the interrupt
continues to be polled while there is heavy traffic.
The bug is most readily realized as the driver is first brought up and
all interrupts start on CPU0. If there is heavy traffic and the
interrupt starts polling before the interrupt is affinitized, the
interrupt will be stuck on CPU0 until traffic stops. The bug, however,
can also be wrought out more simply by affinitizing all the interrupts
to a single CPU and then attempting to move any of those interrupts off
while there is heavy traffic.
This patch fixes the bug by registering for update notifications from
the kernel when the interrupt affinity changes. When that fires, we
cache the intended affinity mask. Then, while polling, if the cpu is
pegged at 100% and we failed to clean the rings, we check to make sure
we have the correct affinity and stop polling if we're firing on the
wrong CPU. When the kernel successfully moves the interrupt, it will
start polling on the correct CPU. The performance impact is minimal
since the only time this section gets executed is when performance is
already compromised by the CPU.
Change-ID: I4410a880159b9dba1f8297aa72bef36dca34e830
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Order of arguments is wrong.
The wrong code has been introduced by commit 7d4f8d871a, but is compiled
only since commit 9df70b6641.
Note that this may break netlink dumps.
Fixes: 9df70b6641 ("i40e: Remove incorrect #ifdef's")
Fixes: 7d4f8d871a ("switchdev; add VLAN support for port's bridge_getlink")
CC: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Huaibin Wang <huaibin.wang@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
If we fail on allocating enough MSI-X interrupts, we should disable
them since they were previously enabled in this point of code.
Not disabling them can lead to WARN_ON() being triggered and subsequent
failure in enabling MSI as a fallback; the below message was shown without
this patch while we played with interrupt allocation in i40e driver:
[ 21.461346] sysfs: cannot create duplicate filename '/devices/pci0007:00/0007:00:00.0/0007:01:00.3/msi_irqs'
[ 21.461459] ------------[ cut here ]------------
[ 21.461514] WARNING: CPU: 64 PID: 1155 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x88/0xc0
Also, we noticed that without this patch, if we modprobe the module without
enough MSI-X interrupts (triggering the above warning), unload the module
and re-load it again, we got a crash on the system.
Signed-off-by: Guilherme G Piccoli <gpiccoli@linux.vnet.ibm.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
in commit a036244c06 a fix
was put into place to avoid a kernel panic when a non-
supported traffic class configuration was put into place
and then lldp was enabled/disabled on the link partner
switch. This fix caused it to be necessary to
unload/reload the driver to reenable DCB once a supported
TC config was in place.
The root cause of the original panic was that the function
i40e_pf_get_default_tc was allowing for a default TC other
than TC 0, and only TC 0 is supported as a default.
This patch removes the get_default_tc function and replaces
it with a #define since there is only one TC supported as
a default.
Change-Id: I448371974e946386d0a7718d73668b450b7c72ef
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Ronald Bynoe <ronald.j.bynoe@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
e100: min_mtu 68, max_mtu 1500
- remove e100_change_mtu entirely, is identical to old eth_change_mtu,
and no longer serves a purpose. No need to set min_mtu or max_mtu
explicitly, as ether_setup() will already set them to 68 and 1500.
e1000: min_mtu 46, max_mtu 16110
e1000e: min_mtu 68, max_mtu varies based on adapter
fm10k: min_mtu 68, max_mtu 15342
- remove fm10k_change_mtu entirely, does nothing now
i40e: min_mtu 68, max_mtu 9706
i40evf: min_mtu 68, max_mtu 9706
igb: min_mtu 68, max_mtu 9216
- There are two different "max" frame sizes claimed and both checked in
the driver, the larger value wasn't relevant though, so I've set max_mtu
to the smaller of the two values here to retain identical behavior.
igbvf: min_mtu 68, max_mtu 9216
- Same issue as igb duplicated
ixgb: min_mtu 68, max_mtu 16114
- Also remove pointless old == new check, as that's done in dev_set_mtu
ixgbe: min_mtu 68, max_mtu 9710
ixgbevf: min_mtu 68, max_mtu dependent on hardware/firmware
- Some hw can only handle up to max_mtu 1504 on a vf, others 9710
CC: netdev@vger.kernel.org
CC: intel-wired-lan@lists.osuosl.org
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Although rare, it's possible to hit PCI error early on device
probe, meaning possibly some structs are not entirely initialized,
and some might even be completely uninitialized, leading to NULL
pointer dereference.
The i40e driver currently presents a "bad" behavior if device hits
such early PCI error: firstly, the struct i40e_pf might not be
attached to pci_dev yet, leading to a NULL pointer dereference on
access to pf->state.
Even checking if the struct is NULL and avoiding the access in that
case isn't enough, since the driver cannot recover from PCI error
that early; in our experiments we saw multiple failures on kernel
log, like:
[549.664] i40e 0007:01:00.1: Initial pf_reset failed: -15
[549.664] i40e: probe of 0007:01:00.1 failed with error -15
[...]
[871.644] i40e 0007:01:00.1: The driver for the device stopped because the
device firmware failed to init. Try updating your NVM image.
[871.644] i40e: probe of 0007:01:00.1 failed with error -32
[...]
[872.516] i40e 0007:01:00.0: ARQ: Unknown event 0x0000 ignored
Between the first probe failure (error -15) and the second (error -32)
another PCI error happened due to the first bad probe. Also, driver
started to flood console with those ARQ event messages.
This patch will prevent these issues by allowing error recovery
mechanism to remove the failed device from the system instead of
trying to recover from early PCI errors during device probe.
CC: <stable@vger.kernel.org>
Signed-off-by: Guilherme G Piccoli <gpiccoli@linux.vnet.ibm.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently if the MSI-X vector limit is reached the sideband flow
director gets disabled. A bit too early to make that decision, as
vectors may get re-distributed. So move the check further back.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The driver allocates 1 vector per CPU thread and the current hardware
limit for vectors is 129 per PF. On systems with 128 or more threads
this currently means all vectors are used by the PF leaving no room for
additional features like VMDq, iWARP, etc...
The code that should redistribute the vectors in this case is broken and
never triggers. Fixed the code so that it actually triggers if the
hardware limit is reached and adjust the number of queue pairs
accordingly.
Also the number of initially requested iWARP vectors was not properly
saved when the vector limit was reached, and therefore always zero.
Comparison with debug statement.
Before:
i40e 0000:2d:00.0: VMDq disabled, not enough MSI-X vectors
i40e 0000:2d:00.0: IWARP disabled, not enough MSI-X vectors
i40e 00.0 MSI-X vector distribution: PF 128, VMDq 0, FDSB 0, iWARP 0
After:
i40e 0000:2d:00.0: MSI-X vector limit reached, attempting to redistribute vectors
i40e 00.0 MSI-X vector distribution: PF 78, VMDq 8, FDSB 0, iWARP 42
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
During MSI-X vector allocation for VMDq, a check for "no vectors left"
was missing, add it. This prevents more vectors to be allocated than
available.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In some rare cases, we might get a VSI with no queues. In this case, we
cannot configure RSS on this VSI as it will try to divide by zero when
configuring the lookup table.
Change-ID: I6ae173a7dd3481a081e079eb10eb80275de2adb0
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The return value from i40e_shutdown_adminq() is always 0
(I40E_SUCCESS). So, the test for non-0 will never be true. Cleanup
by removing the test and debug print statement.
Change-ID: Ie51e8e37515c3e3a6a9ff26fa951d0e5e24343c1
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In i40e_fdir_check_and_reenable(), the driver performs some checks to
determine whether it is safe to re-enable FD Sideband and FD ATR
support. The current check will only determine if there is available
space in the flow director table. However, this ignores the fact that
ATR should be disabled when there are TCP/IPv4 sideband rules in effect.
Add the missing check, and update the info message printed when
I40E_DEBUG_FD is enabled.
Change-ID: Ibb9c63e5be95d63c53a498fdd5dbf69f54a00e08
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Some locations that disable ATR accidentally used the "full" disable by
disabling the flag in the standard flags field. This incorrectly forces
ATR off permanently instead of temporarily disabling it. In addition,
some code locations accidentally set the ATR flag enabled when they only
meant to clear the auto_disable_flags. This results in ignoring the
user's ethtool private flag settings.
Additionally, when disabling ATR via ethtool, we did not perform a flush
of the FD table. This results in the previously assigned ATR rules still
functioning which was not expected.
Cleanup all these areas so that automatic disable uses only the
auto_disable_flag. Fix the flush code so that we can trigger a flush
even when we've disabled ATR and SB support, as otherwise the flush
doesn't work. Fix ethtool setting to actually request a flush. Fix
NETIF_F_NTUPLE flag to only clear the auto_disable setting and not
enable the full feature.
Change-ID: Ib2486111f8031bd16943e9308757b276305c03b5
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There exists a bug in which deleting a mac filter does not actually
occur. The driver reports that the filter has been deleted with no
error. The problem occurs because the wrong cmd_flag is passed to the
firmware when deleting the filter. The firmware reports an error back
to the driver but it is expressly ignored.
This fixes the bug by using the correct flag when deleting a filter.
Without this patch, deleted filters remain in firmware and function as
if they had not been deleted.
Change-ID: I5f22b874f3b83f457702f18f0d5602ca21ac40c3
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch fixes the problem where driver shows 100 Mbps as a supported speed,
and allows it to be configured for advertising on X722 devices. This patch
fixes the problem by not setting the 100 Mbps SGMII flag for X722 devices.
Without this patch, the user incorrectly thinks that 100 Mbps is supported
and hence might try to advertise it on X722 devices when it is actually not
a supported speed.
Change-ID: I8c3d7c4251a9402d98994ed29749b7b895a0f205
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch fixes an issue where we were byte swapping the port
parameter, then byte swapping it again in function execution.
Obviously, that's unnecessary, so take it out of the function calls.
Without this patch, the udp based tunnel configuration would
not be correct.
Change-ID: I788d83c5bd5732170f1a81dbfa0b1ac3ca8ea5b7
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Previously, when using ethtool to change the RSS hash key, ethtool would
report back saying the old key was still being used and no error was
reported. It was unclear whether it was being reported incorrectly or
being set incorrectly. Debugging revealed 'i40e_set_rxfh()' returned
zero immediately instead of setting the key because a user defined
indirection table is not supplied when changing the hash key.
This fix instead changes it such that if an indirection table is not
supplied, then a default one is created and the hash key is now
correctly set.
Change-ID: Iddb621897ecf208650272b7ee46702cad7b69a71
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Conflicts:
drivers/net/ethernet/mediatek/mtk_eth_soc.c
drivers/net/ethernet/qlogic/qed/qed_dcbx.c
drivers/net/phy/Kconfig
All conflicts were cases of overlapping commits.
Signed-off-by: David S. Miller <davem@davemloft.net>
If DCB is configured on the link partner switch with an
unsupported traffic class configuration (e.g. non-contiguous TCs),
the driver is flagging DCB as disabled. But, for future DCB
LLDPDUs, the driver was checking if the interface was DCB capable
instead of enabled. This was causing a kernel panic when LLDP
was enabled/disabled on the link partner switch.
This patch corrects the situation by having the LLDP event handler
check the correct flag in the pf structure. It also cleans up the
setting and clearing of the enabled flag for other checks.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This change makes a common flow for Client instance open during init
and reset path. The Client subtask can handle both the cases instead of
making a separate notify_client_of_open call.
Also it may fix a bug during reset where the service task was leaking
some memory and causing issues.
Change-Id: I7232a32fd52b82e863abb54266fa83122f80a0cd
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace calls to create_singlethread_workqueue instead with alloc_workqueue
as is style with other Intel drivers. This provides more control over
workqueue creation, and allows explicit setting of the desired mode of
operation. It also makes it more obvious that driver name constant is
passed to a format "%s".
Change-ID: I6192b44caf5140336cd54c5b350d51c73b541fdb
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A previous refactor added support to store user configuration for VSIs,
so that extra VSIs such as for VMDq can use this information when
configuring. Unfortunately the i40e_vsi_config_rss function was missed
in this refactor, and the values were being ignored. Fix this by
checking for the fields and using those instead of always using the
default values.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Move this function below the two functions related to configuring RSS
via the admin queue. This helps co-locate the two functions, and made it
easier to spot a bug in the first i40e_config_rss_aq function as
compared to the i40e_get_rss_aq function.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch fixes the bug which causes RSS to continue to work
after being disabled. After disabling RSS, traffic would continue
to be assigned to different queues instead of falling back to a
single queue. Without this patch, attempting to disable RSS would
not work as expected. This patch fixes the bug by clearing the
lookup table used by RSS such that all traffic is assigned to a
single queue. This patch also addresses the issue of reinstating
the lookup table should RSS then be re-enabled.
Change-ID: Ib20c7c6a7e9f1f772bb787370f8a8c664796b141
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch fixes a problem where a static analysis tool generates
a warning for "INVARIANT_CONDITION: Expression 'enabled_tc' used
in the condition always yields the same result."
Without this patch, the driver will not pass the static analysis
tool checks without generating warnings.
This patch fixes the problem by eliminating the irrelevant check
and redundant assignment for the value of enabled_tc.
Change-ID: Ia7d44cb050f507df7de333e96369d322e08bf408
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When we are resetting the pf stats we should also reset the RX csum
error stat.
Change-ID: I7af5ee0ec81a10f6deee1a7b8c2082ea068ef620
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The i40e driver was causing a kernel panic when
non-contiguous Traffic Classes, or Traffic Classes not
starting with TC0, were configured on a link partner switch.
i40e does not support non-contiguous TCs.
To fix this, the patch changes the logic when determining
the total number of TCs enabled. Before, this would use the
highest TC number enabled and assume that all TCs below it were
also enabled. Now, we create a bitmask of enabled TCs and scan
it to determine not only the number of TCs, but also if the set
of enabled TCs starts at zero and is contiguous. If not, then
DCB is disabled by only returning one TC.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Conflicts:
drivers/net/ethernet/intel/i40e/i40e_main.c
Jeff Kirsher says:
====================
40GbE Intel Wired LAN Driver Updates 2016-07-22
This series contains updates to i40e and i40evf.
Heinrich Schuchardt found a possible null pointer being dereferenced in
i40e_debug_aq(), fixed the issue by doing the variable assignment after
we are sure the pointer is not null.
Avinash fixed an issue when link was down, we were not showing the
correct advertised link modes.
Mitch cleans up a useless initializer since the variable is assigned
right away. Refactors the receive filter handling to properly track
filter adds and deletes so the driver will not lose filters during a
reset and up/down cycles. Also added a tracking mechanism so that the
driver knows when to enter and leave promiscuous mode.
Catherine removes a device id which is not needed (or used). Moves
a mutex lock since we need to lock the client list around the
i40e_client_release() call to prevent the release from interrupting
the client instances while they are being added.
Joshua adds Hyper-V specific VF device ids.
Amitoj Kaur Chawla cleans up a redundant memset() call before a memcpy().
Stefan Assmann adds the missing link advertise for some x710 NICs.
Tushar Dave fixes and issue found on SPARC, where a PF reset clears MAC
filters and if a platform-specific MAC address is used, the driver has
to explicitly write default MAC address to MAC filters otherwise all
incoming traffic destined to the default MAC address will be dropped
after reset.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
i40e PF reset clears mac filters. If platform-specific mac address
is used, driver has to explicitly write default mac address to mac
filters otherwise all incoming traffic destined to default mac
address will be dropped after reset.
This issue was found on SPARC while toggling i40e ntuple via ethtool.
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Remove redundant call to memset before a call to memcpy.
The Coccinelle semantic patch used to make this change is as follows:
@@
expression e1,e2,e3,e4;
@@
- memset(e1,e2,e3);
memcpy(e1,e4,e3);
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Properly track filter adds and deletes so the driver doesn't lose filters
during resets and up/down cycles. Add a tracking mechanism so that the
driver knows when to enter and leave promiscuous mode.
Implement a simple state machine so the driver can track the status of
each filter throughout its lifecycle. Properly manage the overflow promiscuous
state for the each VSI, and provide a way for the driver to detect when to exit
overflow promiscuous mode.
Remove all possible default MAC filters that the firmware may have set up so
that the driver can manage these correctly, particularly when VLANs come into
play. Remove the LAA flag for filters; instead just send whatever we get through
set_mac to the firmware as the LAA for wakeup purposes.
Finally, add the state of each filter to debugfs output so we can see what's
going on inside the driver's pointy little head.
Change-ID: I97c5e366fac2254fa01eaff4f65c0af61dcf2e1f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This device ID is not needed, so take it out.
Change-ID: I148d29f68a1f58b03980ecd83047a1b440f4f74d
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Currently, the q_vector initialization routine sets the affinity_mask
of a q_vector based on v_idx value. Meaning a loop iterates on v_idx,
which is an incremental value, and the cpumask is created based on
this value.
This is a problem in systems with multiple logical CPUs per core (like in
SMT scenarios). If we disable some logical CPUs, by turning SMT off for
example, we will end up with a sparse cpu_online_mask, i.e., only the first
CPU in a core is online, and incremental filling in q_vector cpumask might
lead to multiple offline CPUs being assigned to q_vectors.
Example: if we have a system with 8 cores each one containing 8 logical
CPUs (SMT == 8 in this case), we have 64 CPUs in total. But if SMT is
disabled, only the 1st CPU in each core remains online, so the
cpu_online_mask in this case would have only 8 bits set, in a sparse way.
In general case, when SMT is off the cpu_online_mask has only C bits set:
0, 1*N, 2*N, ..., C*(N-1) where
C == # of cores;
N == # of logical CPUs per core.
In our example, only bits 0, 8, 16, 24, 32, 40, 48, 56 would be set.
This patch changes the way q_vector's affinity_mask is created: it iterates
on v_idx, but consumes the CPU index from the cpu_online_mask instead of
just using the v_idx incremental value.
No functional changes were introduced.
Signed-off-by: Guilherme G Piccoli <gpiccoli@linux.vnet.ibm.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch sets VSI broadcast promiscuous mode during VSI add sequence
and prevents adding MAC filter if specified MAC address is broadcast.
Change-ID: Ia62251fca095bc449d0497fc44bec3a5a0136773
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When LLDP/DCBX change happens the i40e driver code flow tried to
notify the client(s) for each of the PF VSIs. This resulted into
kernel panic on the first VSI that didn't have any netdev
associated to it.
The DCB change notification to the client(s) should be done only
once for the PF/LAN VSI where the client(s) instances have been
added to. Also, move the notification call after the PF driver has
made changes related to the updated DCB configuration.
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com>
Tested-by: Ronald J Bynoe <ronald.j.bynoe@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
On systems with 128 CPUs, turning off TSO results in errors,
i40e 0000:03:00.0: failed to get tracking for 1 vectors for VSI 400, err=-12
i40e 0000:03:00.0: Couldn't create FDir VSI
i40e 0000:03:00.0: i40e_ptp_init: PTP not supported on eth0
i40e 0000:03:00.0: couldn't add VEB, err I40E_ERR_ADMIN_QUEUE_ERROR aq_err I40E_AQ_RC_ENOENT
i40e 0000:03:00.0: rebuild of switch failed: -1, will try to set up simple PF connection
i40e 0000:03:00.0 eth0: adding 00:10:e0:8a:24:b6 vid=0
Enabling FD_SB without checking availability of MSI-X vector is the
root cause. This change adds necessary check.
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since the macaddr add and delete happens asynchronously, error
messages don't easily get associated to the actual request. Here
we add a bit of information to the error messages to help
determine the source of the error.
Change-ID: Id2d6df5287141c3579677d72d8bd21122823d79f
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Remove the need for a reset when the device enters limited promiscuous
mode. This was causing heartburn for people who were using VFs and
bridging, since this would require all of the VFs to undergo a reset
each time the PF changed its promiscuity.
Change-ID: I0a83495c5e4d68112bbc7a7a076d20fa8dd3b61c
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Limiting qcount to pf->num_lan_msix, effectively limits the RSS queues
to only use the number of CPUs, and ignore all other queues. We don't
want to do this. If the user has changed the RSS settings to use more
queues then CPUS, we want to trust they know what they are doing and
let them. More importantly, if we tell them that is what we did, we want
to actually do it and allow traffic into all of the queues we have
allocated. This does not change the default setting to initially
allocate only the number of CPUS of queue pairs.
Change-ID: Ie941a96e806e4bcd016addb4e17affb46770ada5
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The i40e_suspend() function was failing to save PCI state
and this would result in a kernel stack trace from a WARN_ONCE in the
pci_legacy_suspend() function.
Add a call to pci_save_state() to fix that problem.
Change-ID: I4736e62bb660966bd208cc8af617a14cb07fc4bd
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The i40e_suspend() function calls another function that preps the device
for the power save and resume by freeing all the Tx/Rx resources and
interrupts but that function does not free the "other" causes interrupt
vector and IRQ. It also fails to call synchronize_irq() before freeing
the IRQ vectors. This sometimes may result in some AER errors on those
systems with that PCIe error reporting feature enabled.
Call synchronize_irq() before freeing IRQ vectors and explicitly free
the other causes interrupt resources and shut down that MSIX interrupt.
Change-ID: Ib88e4536756518a352446da0232189716618ad81
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We were failing to set the client interface down when we put the VSI
down. Add this call so that the client doesn't get an open called with
no close.
Also remove an un-needed delay. The VF should not be affected at all by
i40e_down.
Change-ID: I1135dffef534bf84e6fed57cf51bcf590e6cfaf7
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This function uses the i40e_hw struct all over the place, so why doesn't
it keep a pointer to the struct? Add this pointer as a local variable
and use it consistently throughout the function.
Change-ID: I10eb688fe40909433fcb8ac7ac891cef67445d72
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Now that we do have pci_request_mem_regions() and pci_release_mem_regions()
at hand, use it in the Intel ethernet drivers.
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: David S. Miller <davem@davemloft.net>
This patch goes through and combines the notifiers for VXLAN and GENEVE
into a single function for each action. So there is now one combined
function for getting ports, one for adding the ports, and one for deleting
the ports.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support for offloading IPXIP6 type packets that represent
either IPv4 or IPv6 encapsulated inside of an IPv6 outer IP header. In
addition with this change we should also be able to support FOU
encapsulated traffic with outer IPv6 headers.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch defines two new GSO definitions SKB_GSO_IPXIP4 and
SKB_GSO_IPXIP6 along with corresponding NETIF_F_GSO_IPXIP4 and
NETIF_F_GSO_IPXIP6. These are used to described IP in IP
tunnel and what the outer protocol is. The inner protocol
can be deduced from other GSO types (e.g. SKB_GSO_TCPV4 and
SKB_GSO_TCPV6). The GSO types of SKB_GSO_IPIP and SKB_GSO_SIT
are removed (these are both instances of SKB_GSO_IPXIP4).
SKB_GSO_IPXIP6 will be used when support for GSO with IP
encapsulation over IPv6 is added.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For the SR-IOV VSIs, when the queue filtering section is valid,
the RSS LUT needs to be set to use the VSI specific lookup table
(otherwise it will use the PF RSS LUT table).
Change-ID: Ia9377cc818078238a75c3bdeade1b593a91b3480
Signed-off-by: Ashish Shah <ashish.n.shah@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds priv-flag knob to configure global true promisc
support. With this patch the user can decide the flavor of
promiscuous that the VFs will see when promiscuous mode is enabled
on the interface. Since this a global setting for the whole device,
the priv-flag is exposed only on the first PF of the device.
The default is true promisc support is off, which means the promisc
mode for the VF will be limited/defport mode.
For the PF, we still will be in limited promisc unless in MFP mode
irrespective of the flavor picked through this knob.
Usage:
On PF0
ethtool --show-priv-flags p261p1
Private flags for p261p1:
MFP : off
LinkPolling : off
flow-director-atr : on
veb-stats : off
hw-atr-eviction : off
vf-true-promisc-support: off
to enable setting true promisc
ethtool --set-priv-flags p261p1 vf-true-promisc-support on
At this point if the VF is set to trust and promisc is enabled
on the VF through
ip link set ... promisc on
The VF/VFs will be able to see ALL ingress traffic
Change-Id: I8fac4b6eb1af9ca77b5376b79c50bdce5055bd94
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The hardware supports a 16 byte descriptor for receive, but the
driver was never using it in production. There was no performance
benefit to the real driver of 16 byte descriptors, so drop a whole
lot of complexity while getting rid of the code.
Also since the previous patch made us use no-split mode all the
time, drop any support in the driver for any other value in dtype
and assume it is always zero (aka no-split).
Hooray for code removal!
Change-ID: I2257e902e4dad84a07b94db6d2e6f4ce69b27bc0
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This is part 1 of the Rx refactor series, just including
changes to i40e.
This refactor aligns the receive routine with the one in
ixgbe which was highly optimized. This reduces the code
we have to maintain and allows for (hopefully) more readable
and maintainable RX hot path.
In order to do this:
- consolidate the receive path into a single function that doesn't
use packet split but *does* use pages for Rx buffers.
- remove the old _1buf routine
- consolidate several routines into helper functions
- remove ethtool control over packet split
Change-ID: I5ca100721de65992aa0114f8b4bac844b84758e0
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
As part of preparation for the rx-refactor, remove the
packet split receive routine and ancillary code.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
previous patches removed all direct accesses to dev->trans_start,
so change the netif_trans_update helper to update trans_start of
netdev queue 0 instead and then remove trans_start from struct net_device.
AFAICS a lot of the netif_trans_update() invocations are now useless
because they occur in ndo_start_xmit and driver doesn't set LLTX
(i.e. stack already took care of the update).
As I can't test any of them it seems better to just leave them alone.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch makes it so that i40e and i40evf can use GSO_PARTIAL to support
segmentation for frames with checksums enabled in outer headers. As a
result we can now send data over these types of tunnels at over 20Gb/s
versus the 12Gb/s that was previously possible on my system.
The advantage with the i40e parts is that this offload is mostly
transparent as the hardware still deals with the inner and/or outer IPv4
headers so the IP ID is still incrementing for both when this offload is
performed.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add a device ID for X722.
Change-Id: I574f2345ab341de98a6a1c212d0603af853e48b0
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
i40e_release_rx_desc was in two files, but was only used
and needed in txrx.c. Get rid of the extra copy.
Change-Id: I86e18239aa03531fc198b6c052847475084a9200
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
With this change a non trusted VF can never fall to promiscuous
mode when there is no room for a MAC/VLAN filter.
Change-Id: I8a155aa25c0bcdc6093414920c9ade4ee0bd20e8
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add support for configuring RSS on behalf of the VFs. This removes the
burden of dealing with different hardware interfaces from the VF
drivers, allowing for better future compatibility.
Change-ID: Icea75d3f37241ee8e447be5779e5abb53ddf04c0
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Looking over the documentation it turns out enabling IPIP and SIT offloads
for i40e is pretty straightforward. As such I decided to enable them with
this patch. In my testing I am seeing an improvement of 8 to 10 Gb/s
for IPIP and SIT tunnels with this offload enabled.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The feature flags list for i40e and i40evf is beginning to become pretty
massive. I plan to add another 4 or so features to these drivers and
duplicating the flags for each and every flags list is becoming a bit
repetitive.
The primary change here is that we now build our features list around
hw_encap_features. After that we assign that to vlan_features,
hw_features, and finally map that onto features. In addition we end up
throwing features onto hw_encap_features that end up having no effect such
as the Rx offloads and SCTP_CRC. However that should have no impact and
makes things a bit easier for us as hw_encap_features is one of the less
updated features maps available.
For i40evf I went through and sanity checked a few features as well.
Specifically RXCSUM was being set as a read-only feature which didn't make
much sense. I have updated things so we can clear the NETIF_F_RXCSUM flag
since that is really a software feature and not a hardware one anyway so
disabling it is just a matter of ignoring the result from the hardware.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds hook to support changing a VF from not-trusted
to trusted and vice-versa. Fixed the wrappers and function prototype.
Changed the dmesg to reflex the current state better. This patch also
disables turning on/off trusted VF in MFP mode.
Change-ID: Ibcd910935c01f0be1f3fdd6d427230291ee92ebe
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Don't set our internal debug_mask at startup unless we get specific signal
to from the debug module parameter.
This should take care of the issue with all the device capabilities getting
printed even when we hadn't asked for the debug info.
Change-ID: I7fbc6bd8b11ed9b0631ec018ff36015a04100b6c
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add the Media Not Available flag to the link event mask. It seems
that event comes first if you have a DA cable pulled out, but there's no
follow-up event for Link Down; if you're not looking for MEDIA_NA you will
get no event, even though there's now no Link.
Change-ID: cb3340a2849805bb881f64f6f2ae810eef46eba7
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Periodic link polling was added when the link events were found not to be
trustworthy. This was the case early on, but was likely because the link
event mask was being used incorrectly. As this has been fixed in recent
code, we can disable the link polling to lessen the AQ traffic.
Change-ID: Id890b5ee3c2d04381fc76ffa434777644f5d8eb0
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The new device ID is 0x37D3 and it should follow the same flows and
branding string as for 0x37D0.
Change-ID: Ia5ad4a1910268c4666a3fd46a7afffbec55b4fc2
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch enables the Capability for XL710/X710 devices with FW API
version higher than 1.4 to do geneve Rx offload.
Change-ID: I9a8f87772c48d7d67dc85e3701d2e0b845034c0b
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There was an error introduced with commit 3fced53507 ("i40e: X722 is
on the IOSF bus and does not report the PCI bus info"), where code was
added but the enabling flag is never set.
CC: Anjali Singhai Jain <anjali.singhai@intel.com>
CC: Stefan Assman <sassman@redhat.com>
Fixes: 3fced53507 ("i40e: X722 is on the IOSF bus ...")
Reported-by: Steve Best <sbest@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
There's no real error in an unknown event from the Firmware, we're just
posting a useful FYI notice, so this patch simply removes the "Error" word.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Notify VFs in the reset interrupt handler, instead of the actual
reset initiation code. This allows the VFs to get properly notified for
all resets, including resets initiated by different PFs on the same
physical device.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In some error scenarios, we may find ourselves trying to remove a
non-existent timer or worktask. This causes the kernel some bit
of consternation, so don't do it.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When dropping into debug mode in a failed probe, make sure that
the AdminQ is left alive for possible hand debug of driver and
firmware states.
Move the mutex_init calls earlier in probe so that if init fails,
the admin queue interface is still available for debugging purposes.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When cleaning up the interrupt handling, clean up the IRQs only if
we actually got them set up. There are a couple of error recovery
paths that were violating this and causing the kernel a bit of
indigestion.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Reviewed-by: Williams, Mitch A <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Calling dev_close() causes IFF_UP to be cleared which will remove the
interfaces routes and some addresses. That's probably not what the user
intended when running the offline selftest. Besides this does not happen
if the interface is brought down before the test, so the current
behaviour is inconsistent.
Instead call the net_device_ops ndo_stop function directly and avoid
touching IFF_UP at all.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
- A few minor core fixups needed for the next patch series
- The IB SRIOV series. This has bounced around for several versions.
Of note is the fact that the first patch in this series effects
the net core. It was directed to netdev and DaveM for each iteration
of the series (three versions total). Dave did not object, but did
not respond either. I've taken this as permission to move forward
with the series.
- The new Intel X722 iWARP driver
- A huge set of updates to the Intel hfi1 driver. Of particular interest
here is that we have left the driver in staging since it still has an
API that people object to. Intel is working on a fix, but getting
these patches in now helps keep me sane as the upstream and Intel's
trees were over 300 patches apart.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma updates from Doug Ledford:
"Round two of 4.6 merge window patches.
This is a monster pull request. I held off on the hfi1 driver updates
(the hfi1 driver is intimately tied to the qib driver and the new
rdmavt software library that was created to help both of them) in my
first pull request. The hfi1/qib/rdmavt update is probably 90% of
this pull request. The hfi1 driver is being left in staging so that
it can be fixed up in regards to the API that Al and yourself didn't
like. Intel has agreed to do the work, but in the meantime, this
clears out 300+ patches in the backlog queue and brings my tree and
their tree closer to sync.
This also includes about 10 patches to the core and a few to mlx5 to
create an infrastructure for configuring SRIOV ports on IB devices.
That series includes one patch to the net core that we sent to netdev@
and Dave Miller with each of the three revisions to the series. We
didn't get any response to the patch, so we took that as implicit
approval.
Finally, this series includes Intel's new iWARP driver for their x722
cards. It's not nearly the beast as the hfi1 driver. It also has a
linux-next merge issue, but that has been resolved and it now passes
just fine.
Summary:
- A few minor core fixups needed for the next patch series
- The IB SRIOV series. This has bounced around for several versions.
Of note is the fact that the first patch in this series effects the
net core. It was directed to netdev and DaveM for each iteration
of the series (three versions total). Dave did not object, but did
not respond either. I've taken this as permission to move forward
with the series.
- The new Intel X722 iWARP driver
- A huge set of updates to the Intel hfi1 driver. Of particular
interest here is that we have left the driver in staging since it
still has an API that people object to. Intel is working on a fix,
but getting these patches in now helps keep me sane as the upstream
and Intel's trees were over 300 patches apart"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (362 commits)
IB/ipoib: Allow mcast packets from other VFs
IB/mlx5: Implement callbacks for manipulating VFs
net/mlx5_core: Implement modify HCA vport command
net/mlx5_core: Add VF param when querying vport counter
IB/ipoib: Add ndo operations for configuring VFs
IB/core: Add interfaces to control VF attributes
IB/core: Support accessing SA in virtualized environment
IB/core: Add subnet prefix to port info
IB/mlx5: Fix decision on using MAD_IFC
net/core: Add support for configuring VF GUIDs
IB/{core, ulp} Support above 32 possible device capability flags
IB/core: Replace setting the zero values in ib_uverbs_ex_query_device
net/mlx5_core: Introduce offload arithmetic hardware capabilities
net/mlx5_core: Refactor device capability function
net/mlx5_core: Fix caching ATOMIC endian mode capability
ib_srpt: fix a WARN_ON() message
i40iw: Replace the obsolete crypto hash interface with shash
IB/hfi1: Add SDMA cache eviction algorithm
IB/hfi1: Switch to using the pin query function
IB/hfi1: Specify mm when releasing pages
...
This patch adds a Client interface for i40iw driver
support. Also expands the Virtchannel to support messages
from i40evf driver on behalf of i40iwvf driver.
This client API is used by the i40iw and i40iwvf driver
to access the core driver resources brokered by the i40e driver.
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
For i40e driver, each vector has its own ITR register. However, there
are no concept of queue-specific settings in the driver proper. Only
global variable is used to store ITR values. That will cause problems
especially when resetting the vector. The specific ITR values could be
lost.
This patch move rx_itr_setting and tx_itr_setting to i40e_ring to store
specific ITR register for each queue.
i40e_get_coalesce and i40e_set_coalesce are also modified accordingly to
support queue-specific settings. To make it compatible with old ethtool,
if user doesn't specify the queue number, i40e_get_coalesce will return
queue 0's value. While i40e_set_coalesce will apply value to all queues.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to suspend scheduling or any pending service task during driver
unload process, so that new task will not be scheduled. This patch sets
the suspend flag bit during reload which avoids service task execution.
Change-ID: I017c57b5d6656564556e3c5387da671369a572ac
Signed-off-by: Pandi Kumar Maharajan <pandi.maharajan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Use the new AdminQ functions for safely accessing the Rx control
registers that may be affected by heavy small packet traffic.
We can't use AdminQ calls in i40e_clear_hw() because the HW is being
initialized and the AdminQ is not alive. We recently added an AQ
related replacement for reading PFLAN_QALLOC, and this patch puts
back the original register read.
Change-ID: Ib027168c954a5733299aa3a4ce5f8218c6bb5636
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Return from i40e_vsi_reinit_setup() if vsi param is NULL.
This makes this code consistent with all the other code that
checks for NULL before using one of the VSI pointers accessed
with an indexed variable. (Indexed VSI pointers are
intentionally set to NULL in i40e_vsi_clear() and
i40e_remove().
Change-ID: I3bc8b909c70fd2439334eeae994d151f61480985
Signed-off-by: John Underwood <johnx.underwood@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This fixes an issue where a previously removed message
has returned. Changing the message type to dev_dbg
leaves the info, if desired, but takes it out of normal
everyday usage. Also changed call to only provide port
data when its valid and not when its not (delete case).
Change-ID: Ief6f33b915f6364c24fa8e5789c2fc3168b5e2ed
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Just like Tx queues don't wait for Rx queues to be disabled before
DCB has been reconfigured.
Check the queues are disabled only after the DCB configuration has
been applied to the VSI(s) managed by the PF driver.
In case of any timeout issue a PF reset to recover.
Change-ID: Ic51e94c25baf9a5480cee983f35d15575a88642c
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch fixes a problem where the ethtool identify adapter
functionality did not work for some copper PHY's. Without this
patch, the blink led functionality fails on some parts. This
patch adds PHY write code to blink led's on parts where this
functionality is contained in the PHY rather than the MAC.
Change-ID: Iee7b3453f61d5ffd0b3d03f720ee4f17f919fcc2
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Recent changes should have enabled support for IPv6 based tunnels and
support for TSO with outer UDP checksums. As such we can update the
feature flags to reflect that.
In addition we can clean-up the flags that aren't needed such as SCTP and
RXCSUM since having the bits there doesn't add any value.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
All of the documentation in the datasheets for the XL710 do not call out
any reason to exclude support for IPv6 based tunnels. As such I am
dropping the code that was excluding these tunnel types from having their
port numbers recognized. This way we can take advantage of things such as
checksum offload for inner headers over IPv6 based VXLAN or GENEVE
tunnels.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The i40e and i40evf drivers contained code for inserting an outer checksum
on UDP tunnels. The issue however is that the upper levels of the stack
never requested such an offload and it results in possible errors.
In addition the same logic was being applied to the Rx side where it was
attempting to validate the outer checksum, but the logic there was
incorrect in that it was testing for the resultant sum to be equal to the
header checksum instead of being equal to 0.
Since this code is so massively flawed, and doing things that we didn't ask
for it to do I am just dropping it, and will bring it back later to use as
an offload for SKB_GSO_UDP_TUNNEL_CSUM which can make use of such a
feature.
As far as the Rx feature I am dropping it completely since it would need to
be massively expanded and applied to IPv4 and IPv6 checksums for all parts,
not just the one that supports Tx checksum offload for the outer.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Make sure we return EBUSY while finishing up a reset, and add a few bits
for better debug messages.
Change-ID: I23f6c28a8d96d7aa171abcc265737cec7826c292
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The queues should never be enabled/disabled in the interrupt handler,
ICR0 interrupt enable should be the only thing that needs to be
dynamically changed in the handler.
This patch fixes that. Without this patch X722 platforms were
seeing weird ping timings when in Legacy mode since it takes
a whole lot of time for the HW/FW to re-enable queues.
Change-ID: If065afc45d81c5a19d4a94a00cd5b8f61cefc40c
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Fixed mapping of SEID is removed from specification. Hence
this patch removes code which was using hard coded base VEB SEID.
Changed FCoE code to use "hw->pf_id" to obtain correct "idx"
and verified.
Removed defines for BASE VSI/VEB SEID and BASE_PF_SEID since it
is not used anymore.
Change-ID: Id507cf4b1fae1c0145e3f08ae9ea5846ea5840de
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch falls back to enabling unicast, multicast and
broadcast promiscuous mode when the driver must disable it's use
of "default port" aka defport mode (which is normally used to
provide a promiscuous mode), due to internal incompatibility
with Multiple Function per Port (aka MFP).
The situation that requires this patch is when Physical
Function 0 is the device being used, and it can support SR-IOV
when MFP is enabled, via the driver creating a VEB on an MFP
enabled adapter.
Change-ID: Ie90b00d0d58782a5dfcf2c3c9725a2eb90bd63d8
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds a workaround for cases where we might have
interrupts that got lost but WB happened.
If that happens without this patch we will see a tx_timeout.
To work around it, this patch goes ahead and reschedules NAPI
in that situation, if NAPI is not already scheduled.
We also add a counter in ethtool to keep track of when
we detect a case of tx_lost_interrupt.
Note: napi_reschedule() can be safely called from process/service_task
context and is done in other drivers as well without an issue.
Change-ID: I00f98f1ce3774524d9421227652bef20fcbd0d20
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch makes use of a pointer called hw consistent
in the i40e_remove function.
Change-ID: Idacc7ff0a09a68289c57457a78618bf5497de077
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Bump version to i40e-1.4.13 and i40evf-1.4.9
Change-ID: I9db37f9d4899141c3e5455dfb456d45465b8c035
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
While re-enabling interrupts the driver would clear all pending
causes. This meant that if an interrupt was generated while the driver
was cleaning or polling with interrupts disabled, then that interrupt
was lost. This could cause a queue to become dead, especially for
receive. Refactored the enable_icr0 function in order to allow
it to be decided by the caller whether the CLEARPBA (clear pending
events) bit will be set while re-enabling the interrupt.
Also update copyright year in file headers.
Change-ID: Ic1db100a05e13c98919057696db147a258ca365a
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The new parameters for add_veb allow us to enable and disable VEB stats,
so let's use them.
Update copyright year.
Change-ID: Ie6e68c68e2d1d459e42168eda661051b56bf0a65
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
With the latest firmware, statistics gathering can now be enabled and
disabled in the HW switch, so we need to add a parameter to allow the
driver to set it as desired. At the same time, the L2 cloud filtering
parameter has been removed as it was never used.
Older drivers working with the newer firmware and newer drivers working
with older firmware will not run into problems with these bits as the
defaults are reasonable and there is no overlap in the bit definitions.
Also, newer drivers will be forced to update because of the change in
function call parameters, a reminder that the functionality exists.
Also update copyright year.
Change-ID: I9acb9160b892ca3146f2f11a88fdcd86be3cadcc
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Make the DCB firmware version related checks specific to
X710 and XL710 only. These checks are not required for
X722 family of devices.
Introduced an inline routine to help determine if the
MAC type is X710/XL710 or not.
Moved the firmware version related checks in i40e_sw_init()
and defined flags for different cases
Fix the version check to allow using "Set LLDP MIB" AQ
for beyond FVL4 FW releases.
Change-ID: Ib78288343de983aa0354fc28aa36e99b073662c0
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The sync_vsi_filters function is moved up in the service_task because
it may need to request a reset, and we don't want to wait another round
of service task time.
NOTE: Filters will be replayed by sync_vsi_filters including broadcast
and promiscuous settings.
Also, added some error handling in this space in case any of these
fail the driver will retry correctly.
Also update copyright year.
Change-ID: I23f3d552100baecea69466339f738f27614efd47
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit converts commit b499ffb0a2 ("i40e: Look up MAC address in
Open Firmware or IDPROM") to use eth_platform_get_mac_address()
added by commit c7f5d10549 ("net: Add eth_platform_get_mac_address()
helper.")
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The X722 can support automatic rule eviction for automatically added
flow director rules. Feature is (should be) disabled by default.
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch makes sure we check the GENEVE offload capable flag before
we attempt offload.
It also enables the Capability for XL710/X710 devices with FW API
version higher than 1.4
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The PHY interrupt mask bits mask out the events we don't want,
so we need to negate the bitmask of events we want.
Change-ID: I273244da5a8d285b6abc84fd68a90f1e6fa0393e
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The driver was being called by VLAN, bonding, teaming operations
that expected to be able to hold locks like rcu_read_lock().
This causes the driver to be held to the requirement to not sleep,
and was found by the kernel debug options for checking sleep
inside critical section, and the locking validator.
Change-ID: Ibc68c835f5ffa8ffe0638ffe910a66fc5649a7f7
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Nelson, Shannon <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The sync_vsi_filter function was allocating memory in such
a way that it could sleep (GFP_KERNEL) which was causing a problem
when called by the team driver under rcu_read_lock(), which cannot
be held while sleeping. Found with lockdep.
Change-ID: I4e59053cb5eedcf3d0ca151715be3dc42a94bdd5
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Missing space in comment, fixed.
Change-ID: I8cdf3ce5994b4a97dcc3eeb33422533918546667
Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The probe routine already had a u32 val declared, no need
to do it again. Found by W=2 compile.
Change-ID: Id7b65f6d0ef6bb71067d0557f5be0202b6d8741e
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jeff Kirsher says:
====================
40GbE Intel Wired LAN Driver Updates 2016-02-16
This series contains updates to i40e/i40evf only.
Shannon adds flags to MAC allocation requests to signify that the MAC VLAN
filters should come from the shared resource pool. Added a new "set switch
config" admin queue command and the new Cisco VXLAN-GPE cloud tunnel type
for the admin queue commands. Added more detail to the NVM update debug
message in order to see the full ethtool request data. Also added a few
more bits of netdev data into the debugfs output for dump VSI.
Pandi fixes the width of two datatypes which were being declared a different
size from what they are assigned.
Anjali fixes an issue where we were not doing write-back on interrupt
throttle for legacy case in x722.
Mitch adds a counter for ARQ overflows since sometimes an ever-growing
number indicates that something bad is happening. Also added 20G speed for
Tx bandwidth calculations.
Jesse refactors the DCB function based on a community suggestion to change
the multi-level if statement into a switch statement. Cleans up VF device
IDs in the PF, since it does not need to know them.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch updates setup_tc so we can pass additional parameters into
the ndo op in a generic way. To do this we provide structured union
and type flag.
This lets each classifier and qdisc provide its own set of attributes
without having to add new ndo ops or grow the signature of the
callback.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ndo_setup_tc() op was added to support drivers offloading tx
qdiscs however only support for mqprio was ever added. So we
only ever added support for passing the number of traffic classes
to the driver.
This patch generalizes the ndo_setup_tc op so that a handle can
be provided to indicate if the offload is for ingress or egress
or potentially even child qdiscs.
CC: Murali Karicheri <m-karicheri2@ti.com>
CC: Shradha Shah <sshah@solarflare.com>
CC: Or Gerlitz <ogerlitz@mellanox.com>
CC: Ariel Elior <ariel.elior@qlogic.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Bruce Allan <bruce.w.allan@intel.com>
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Probe routine already has too many locals, just convert one
used for kzalloc into a kcalloc, eliminating the local.
Change-ID: I349049872b71f858cbeb91ad7836e6767fc7b7d1
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Anjali Singhai <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Sometimes, ARQ overflows are a big deal and tell us that the
firmware/hardware/driver/something is having problems. But normally
they're no big deal. To assist in assessing this, add a counter to
our Ethtool stats. A handful of ARQ overflows during VF init is no
problem. A large, ever-growing number indicates that Something Bad is
happening.
Change-ID: Ie5348bfbc8a54a890559cb00279c28d976a55096
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add some missing reporting/advertisement of 100Mb capability
for adapters that support it.
Change-ID: I8b8523fbdc99517bec29d90c71b3744db11542ac
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
As done per ixgbe, use a private workqueue to avoid blocking the
system workqueue. This avoids some strange side effects when
some other entity is depending on the system work queue.
Change-ID: Ic8ba08f5b03696cf638b21afd25fbae7738d55ee
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds another way to access the RSS keys and lut using the AQ
for X722 devices.
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add the KX and QSFP device IDs for X722.
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The restart-autoneg work around does not apply to X722.
Added a flag to set it only for the right MAC and right FW version
where the work around should be applied.
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Change-ID: I942c3ff40cccd1e56f424b1da776b020fe3c9d2a
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
