Commit Graph

5442 Commits

Author SHA1 Message Date
Md Fahad Iqbal Polash ef878d6086 ice: Remove ICE_MAX_TXQ_PER_TXQG check when configuring Tx queue
This patch removes the condition checking of VSI TX queue number to
ICE_MAX_TXQ_PER_TXQG. This is an unnecessary check and causes a driver
load error on hosts that have more than 128 cores.

Signed-off-by: Md Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Henry Tieman 47e3e53cea ice: Destroy scheduler tree in reset path
The scheduler tree is is always rebuilt during reset. The existing code
adds new scheduler nodes for queues but may not clean up earlier nodes.
This patch removed the old scheduler tree during reset before it is
rebuilt.

Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Usha Ketineni c5a2a4a388 ice: Fix to make VLAN priority tagged traffic to appear on all TCs
This patch includes below changes to resolve the issue of ETS bandwidth
shaping to work.

1. Allocation of Tx queues is accounted for based on the enabled TC's
   in ice_vsi_setup_q_map() and enabled the Tx queues on those TC's via
   ice_vsi_cfg_txqs()

2. Get the mapped netdev TC # for the user priority and set the priority
   to TC mapping for the VSI.

Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Brett Creeley 99fc1057b4 ice: Call pci_disable_sriov before stopping queues for VF
Previous to this commit the driver was immediately stopping Tx/Rx
queues when doing the following "echo 0 > sriov_numvfs" and then it was
calling pci_disable_sriov if the VFs are not assigned. This was causing
the VIRTCHNL_OP_DISABLE_QUEUES to fail because it was trying to stop
the queues for a second time.

Fix this by calling pci_disable_sriov before stopping the Tx/Rx queues.
This allows the VIRTCHNL_OP_DISABLE_QUEUES to get processed before the
driver tries to stop the Rx/Tx queues in ice_free_vfs.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Piotr Raczynski 7b8ff0f9cc ice: Increase Rx queue disable timeout
With much traffic coming into the port, Rx queue disable
procedure can take more time until all pending queue
requests on PCIe finish. Reuse ICE_Q_WAIT_MAX_RETRY macro
and increase the delay itself.

Signed-off-by: Piotr Raczynski <piotr.raczynski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Lev Faerman 6263e811f4 ice: Fix NVM mask defines
Fixes bad masks that would break compilation when evaluated.

Signed-off-by: Lev Faerman <lev.faerman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Dave Ertman d09e2693b6 ice: Avoid nested RTNL locking in ice_dis_vsi
ice_dis_vsi() performs an rtnl_lock() if it detects a netdev that is
running on the VSI. In cases where the RTNL lock has already been
acquired, a deadlock results. Add a boolean to pass to ice_dis_vsi to
tell it if the RTNL lock is already held.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Anirudh Venkataramanan 995c90f2de ice: Calculate guaranteed VSIs per function and use it
Currently we are setting the guar_num_vsi to equal to ICE_MAX_VSI
which is the device limit of 768. This is incorrect and could have
unintended consequences. To fix this use the valid_function's 8-bit
bitmap returned from discovering device capabilities to determine the
guar_num_vsi per function. guar_num_vsi value is then passed on to
pf->num_alloc_vsi.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Anirudh Venkataramanan 10e03a22de ice: Remove node before releasing VSI
Before releasing the VSI, remove the VSI scheduler node. If not,
the node is left in the scheduler tree and, on subsequent load, the
scheduler tree contains the node so it does not set it in vsi_ctx.
This, later, causes the node to not be found in ice_sched_get_free_qparent
which leads to a "Failed to set LAN Tx queue context, error: -1".

To remove the scheduler node, this patch introduces ice_rm_vsi_lan_cfg
and related helpers.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:26 -08:00
Tony Nguyen b354e98f49 ice: Check for q_vector when stopping rings
There is a gap in time between a VF reset, which sets the q_vector to
NULL, and the VF requesting mapping of the q_vectors. If
ice_vsi_stop_tx_rings() is called during this time, a NULL pointer
dereference is encountered. Add a check in ice_vsi_stop_tx_rings()
to ensure the q_vector is set to avoid this situation from occurring.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:25 -08:00
Brett Creeley 807bc98d31 ice: Fix debug print in ice_tx_timeout
Currently the debug print in ice_tx_timeout is printing useless and
duplicate values. First, head is being assigned to tx_ring->next_to_clean
and we are printing both of those values, but naming them HWB and NTC
respectively. Also, reading tail always returns 0 so remove that as well.

Instead of assigning the SW head (NTC) read to head, use the actual head
register and change the debug print to note that this is HW_HEAD. Also
reduce the scope of a couple variables.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-13 09:09:25 -08:00
David S. Miller 2b9b7502df Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-11-11 17:57:54 -08:00
Miroslav Lichvar 018ed23ddc ixgbe: extend PTP gettime function to read system clock
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl.

Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09 19:43:51 -08:00
Miroslav Lichvar cff8ba28db igb: extend PTP gettime function to read system clock
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl.

Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09 19:43:51 -08:00
Miroslav Lichvar 98942d7053 e1000e: extend PTP gettime function to read system clock
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl.

Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09 19:43:51 -08:00
Jacob Keller d5596fd467 i40e: enable NETIF_F_NTUPLE and NETIF_F_HW_TC at driver load
The assignment of the feature flag NETIF_F_NTUPLE and NETIF_F_HW_TC
occurs prior to the initial setup of the local hw_features variable.

This means the features are set as user-changeable, but are not set in
the currently active feature list. This results in the features being
disabled at the driver's initial load.

Move the assignment after the initial assignment of hw_features, and
assign to the local variable. This ensures that NETIF_F_NTUPLE and
NETIF_F_HW_TC are marked as user-changeable, and also enables them by
default when the driver loads.

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>
2018-11-07 10:32:15 -08:00
Sasha Neftin 920664a8f7 igc: Clean up code
Address few community comments.
Remove unused code, will be added per demand.
Remove blank lines and unneeded includes.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:01 -08:00
Miroslav Lichvar e1f65b0d70 e1000e: allow non-monotonic SYSTIM readings
It seems with some NICs supported by the e1000e driver a SYSTIM reading
may occasionally be few microseconds before the previous reading and if
enabled also pass e1000e_sanitize_systim() without reaching the maximum
number of rereads, even if the function is modified to check three
consecutive readings (i.e. it doesn't look like a double read error).
This causes an underflow in the timecounter and the PHC time jumps hours
ahead.

This was observed on 82574, I217 and I219. The fastest way to reproduce
it is to run a program that continuously calls the PTP_SYS_OFFSET ioctl
on the PHC.

Modify e1000e_phc_gettime() to use timecounter_cyc2time() instead of
timecounter_read() in order to allow non-monotonic SYSTIM readings and
prevent the PHC from jumping.

Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:01 -08:00
Dan Carpenter bb9089b668 igc: Tidy up some white space
I just cleaned up a couple small white space issues.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:01 -08:00
Colin Ian King 14b21cec85 igc: fix error return handling from call to netif_set_real_num_tx_queues
The call to netif_set_real_num_tx_queues is not assigning the error
return to variable err even though the next line checks err for an
error.  Fix this by adding the missing err assignment.

Detected by CoverityScan, CID#1474551 ("Logically dead code")

Fixes: 3df25e4c1e ("igc: Add interrupt support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:01 -08:00
YueHaibing 84cfa53740 igc: Remove set but not used variable 'pci_using_dac'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/intel/igc/igc_main.c: In function 'igc_probe':
drivers/net/ethernet/intel/igc/igc_main.c:3535:11: warning:
 variable 'pci_using_dac' set but not used [-Wunused-but-set-variable]

It never used since introduction in commit
d89f88419f ("igc: Add skeletal frame for Intel(R) 2.5G Ethernet Controller support")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:01 -08:00
YueHaibing dda458d285 igc: Remove set but not used variables 'ctrl_ext, link_mode'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/intel/igc/igc_base.c: In function 'igc_init_phy_params_base':
drivers/net/ethernet/intel/igc/igc_base.c:240:6: warning:
 variable 'ctrl_ext' set but not used [-Wunused-but-set-variable]
  u32 ctrl_ext;

drivers/net/ethernet/intel/igc/igc_base.c: In function 'igc_get_invariants_base':
drivers/net/ethernet/intel/igc/igc_base.c:290:6: warning:
 variable 'link_mode' set but not used [-Wunused-but-set-variable]
  u32 link_mode = 0;

It never used since introduction in
commit c0071c7aa5 ("igc: Add HW initialization code")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:01 -08:00
Todd Fujinaka 540a152da7 i40e/ixgbe/igb: fail on new WoL flag setting WAKE_MAGICSECURE
There's a new flag for setting WoL filters that is only
enabled on one manufacturer's NICs, and it's not ours. Fail
with EOPNOTSUPP.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:01 -08:00
Jacob Keller a9e510589d intel-ethernet: software timestamp skbs as late as possible
Many of the Intel Ethernet drivers call skb_tx_timestamp() earlier than
necessary. Move the calls to this function to the latest point possible,
just prior to notifying hardware of the new Tx packet when we bump the
tail register.

This affects i40e, iavf, igb, igc, and ixgbe.

The e100, e1000, e1000e, fm10k, and ice drivers already call the
skb_tx_timestamp() function just prior to indicating the Tx packet to
hardware, so they do not need to be changed.

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>
2018-11-07 09:47:01 -08:00
Jacob Keller 9fc145fcb5 ixgbevf: add support for software timestamps
Add a call to skb_tx_timestamp in the ixgbevf_tx_map function. This
enables software timestamping for packets sent over this device driver.
The call is placed just prior to when we notify hardware of the new
packet, in order to software timestamp as close as possible to when the
hardware will transmit.

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>
2018-11-07 09:47:00 -08:00
Shannon Nelson 7fa57ca443 ixgbe: allow IPsec Tx offload in VEPA mode
When it's possible that the PF might end up trying to send a
packet to one of its own VFs, we have to forbid IPsec offload
because the device drops the packets into a black hole.
See commit 47b6f50077 ("ixgbe: disallow IPsec Tx offload
when in SR-IOV mode") for more info.

This really is only necessary when the device is in the default
VEB mode.  If instead the device is running in VEPA mode,
the packets will go through the encryption engine and out the
MAC/PHY as normal, and get "hairpinned" as needed by the switch.

So let's not block IPsec offload when in VEPA mode.  To get
there with the ixgbe device, use the handy 'bridge' command:
	bridge link set dev eth1 hwmode vepa

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:00 -08:00
Colin Ian King 0db4a47c05 ixgbe: don't clear_bit on xdp_ring->state if xdp_ring is null
There is an earlier check to see if xdp_ring is null when configuring
the tx ring, so assuming that it can still be null, the clearing of
the xdp_ring->state currently could end up with a null pointer
dereference.  Fix this by only clearing the bit if xdp_ring is not null.

Detected by CoverityScan, CID#1473795 ("Dereference after null check")

Fixes: 024aa5800f ("ixgbe: added Rx/Tx ring disable/enable functions")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:00 -08:00
Lance Roy b86077207d igbvf: Replace spin_is_locked() with lockdep
lockdep_assert_held() is better suited to checking locking requirements,
since it won't get confused when someone else holds the lock. This is
also a step towards possibly removing spin_is_locked().

Signed-off-by: Lance Roy <ldr709@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:47:00 -08:00
Jacob Keller ba766b8b99 i40e: restore NETIF_F_GSO_IPXIP[46] to netdev features
Since commit bacd75cfac ("i40e/i40evf: Add capability exchange for
outer checksum", 2017-04-06) the i40e driver has not reported support
for IP-in-IP offloads. This likely occurred due to a bad rebase, as the
commit extracts hw_enc_features into its own variable. As part of this
change, it dropped the NETIF_F_FSO_IPXIP flags from the
netdev->hw_enc_features. This was unfortunately not caught during code
review.

Fix this by adding back the missing feature flags.

For reference, NETIF_F_GSO_IPXIP4 was added in commit 7e13318daa
("net: define gso types for IPx over IPv4 and IPv6", 2016-05-20),
replacing NETIF_F_GSO_IPIP and NETIF_F_GSO_SIT.

NETIF_F_GSO_IPXIP6 was added in commit bf2d1df395 ("intel: Add support
for IPv6 IP-in-IP offload", 2016-05-20).

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>
2018-11-07 09:45:42 -08:00
Chinh T Cao ffe498237b ice: Change req_speeds to be u16
Since the req_speeds field in struct ice_link_status is a u8,
req_speeds & ICE_AQ_LINK_SPEED_40GB always returns 0. This was caught
by a coverity scan.

Fix this by changing req_speeds to be u16.

Reported-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Chinh T Cao <chinh.t.cao@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-07 09:37:28 -08:00
Miroslav Lichvar 4c9b658eea igb: shorten maximum PHC timecounter update interval
The timecounter needs to be updated at least once per ~550 seconds in
order to avoid a 40-bit SYSTIM timestamp to be misinterpreted as an old
timestamp.

Since commit 500462a9de ("timers: Switch to a non-cascading wheel"),
scheduling of delayed work seems to be less accurate and a requested
delay of 540 seconds may actually be longer than 550 seconds. Also, the
PHC may be adjusted to run up to 6% faster than real time and the system
clock up to 10% slower. Shorten the delay to 360 seconds to be sure the
timecounter is updated in time.

This fixes an issue with HW timestamps on 82580/I350/I354 being off by
~1100 seconds for few seconds every ~9 minutes.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:54:27 -08:00
Brett Creeley d944b46992 ice: Fix the bytecount sent to netdev_tx_sent_queue
Currently if the driver does a TSO offload the bytecount sent to
netdev_tx_sent_queue will be incorrect. This is because in ice_tso we
overwrite the initial value that we set in ice_tx_map. This creates a
mismatch between the Tx and Tx clean flow. In the Tx clean flow we
calculate the bytecount (called total_bytes) as we clean the
descriptors so the value used in the Tx clean path is correct. Fix this
by using += in ice_tso instead of =. This fixes the mismatch in
bytecount mentioned above.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Brett Creeley c585ea42ec ice: Fix tx_timeout in PF driver
Prior to this commit the driver was running into tx_timeouts when a
queue was stressed enough. This was happening because the HW tail
and SW tail (NTU) were incorrectly out of sync. Consequently this was
causing the HW head to collide with the HW tail, which to the hardware
means that all descriptors posted for Tx have been processed.

Due to the Tx logic used in the driver SW tail and HW tail are allowed
to be out of sync. This is done as an optimization because it allows the
driver to write HW tail as infrequently as possible, while still
updating the SW tail index to keep track. However, there are situations
where this results in the tail never getting updated, resulting in Tx
timeouts.

Tx HW tail write condition:
	if (netif_xmit_stopped(txring_txq(tx_ring) || !skb->xmit_more)
		writel(sw_tail, tx_ring->tail);

An issue was found in the Tx logic that was causing the afore mentioned
condition for updating HW tail to never happen, causing tx_timeouts.

In ice_xmit_frame_ring we calculate how many descriptors we need for the
Tx transaction based on the skb the kernel hands us. This is then passed
into ice_maybe_stop_tx along with some extra padding to determine if we
have enough descriptors available for this transaction. If we don't then
we return -EBUSY to the stack, otherwise we move on and eventually
prepare the Tx descriptors accordingly in ice_tx_map and set
next_to_watch. In ice_tx_map we make another call to ice_maybe_stop_tx
with a value of MAX_SKB_FRAGS + 4. The key here is that this value is
possibly less than the value we sent in the first call to
ice_maybe_stop_tx in ice_xmit_frame_ring. Now, if the number of unused
descriptors is between MAX_SKB_FRAGS + 4 and the value used in the first
call to ice_maybe_stop_tx in ice_xmit_frame_ring then we do not update
the HW tail because of the "Tx HW tail write condition" above. This is
because in ice_maybe_stop_tx we return success from ice_maybe_stop_tx
instead of calling __ice_maybe_stop_tx and subsequently calling
netif_stop_subqueue, which sets the __QUEUE_STATE_DEV_XOFF bit. This
bit is then checked in the "Tx HW tail write condition" by calling
netif_xmit_stopped and subsequently updating HW tail if the
afore mentioned bit is set.

In ice_clean_tx_irq, if next_to_watch is not NULL, we end up cleaning
the descriptors that HW sets the DD bit on and we have the budget. The
HW head will eventually run into the HW tail in response to the
description in the paragraph above.

The next time through ice_xmit_frame_ring we make the initial call to
ice_maybe_stop_tx with another skb from the stack. This time we do not
have enough descriptors available and we return NETDEV_TX_BUSY to the
stack and end up setting next_to_watch to NULL.

This is where we are stuck. In ice_clean_tx_irq we never clean anything
because next_to_watch is always NULL and in ice_xmit_frame_ring we never
update HW tail because we already return NETDEV_TX_BUSY to the stack and
eventually we hit a tx_timeout.

This issue was fixed by making sure that the second call to
ice_maybe_stop_tx in ice_tx_map is passed a value that is >= the value
that was used on the initial call to ice_maybe_stop_tx in
ice_xmit_frame_ring. This was done by adding the following defines to
make the logic more clear and to reduce the chance of mucking this up
again:

ICE_CACHE_LINE_BYTES		64
ICE_DESCS_PER_CACHE_LINE	(ICE_CACHE_LINE_BYTES / \
				 sizeof(struct ice_tx_desc))
ICE_DESCS_FOR_CTX_DESC		1
ICE_DESCS_FOR_SKB_DATA_PTR	1

The ICE_CACHE_LINE_BYTES being 64 is an assumption being made so we
don't have to figure this out on every pass through the Tx path. Instead
I added a sanity check in ice_probe to verify cache line size and print
a message if it's not 64 Bytes. This will make it easier to file issues
if they are seen when the cache line size is not 64 Bytes when reading
from the GLPCI_CNF2 register.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Dave Ertman 25525b69bb ice: Fix napi delete calls for remove
In the remove path, the vsi->netdev is being set to NULL before the call
to free vectors. This is causing the netif_napi_del call to never be made.

Add a call to ice_napi_del to the same location as the calls to
unregister_netdev and just prior to them. This will use the reverse flow
as the register and netif_napi_add calls.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Anirudh Venkataramanan 31082519c1 ice: Fix typo in error message
Print should say "Enabling" instead of "Enaabling"

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Md Fahad Iqbal Polash 58297dd133 ice: Fix flags for port VLAN
According to the spec, whenever insert PVID field is set, the VLAN
driver insertion mode should be set to 01b which isn't done currently.
Fix it.

Signed-off-by: Md Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Anirudh Venkataramanan 9ecd25c268 ice: Remove duplicate addition of VLANs in replay path
ice_restore_vlan and active_vlans were originally put in place to
reprogram VLAN filters in the replay path. This is now done as part
of the much broader VSI rebuild/replay framework. So remove both
ice_restore_vlan and active_vlans

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Victor Raj 33e055fcc2 ice: Free VSI contexts during for unload
In the unload path, all VSIs are freed. Also free the related VSI
contexts to prevent memory leaks.

Signed-off-by: Victor Raj <victor.raj@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Akeem G Abodunrin 0f5d4c21a5 ice: Fix dead device link issue with flow control
Setting Rx or Tx pause parameter currently results in link loss on the
interface, requiring the platform/host to be cold power cycled. Fix it.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:47 -08:00
Anirudh Venkataramanan afd9d4ab58 ice: Check for reset in progress during remove
The remove path does not currently check to see if a
reset is in progress before proceeding.  This can cause
a resource collision resulting in various types of errors.

Check for reset in progress and wait for a reasonable
amount of time before allowing the remove to progress.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:46 -08:00
Anirudh Venkataramanan ce317dd9f8 ice: Set carrier state and start/stop queues in rebuild
Set the carrier state post rebuild by querying the link status. Also
start/stop queues based on link status.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-06 12:46:46 -08:00
Radoslaw Tyl 6702185c1f ixgbe: fix MAC anti-spoofing filter after VFLR
This change resolves a driver bug where the driver is logging a
message that says "Spoofed packets detected". This can occur on the PF
(host) when a VF has VLAN+MACVLAN enabled and is re-started with a
different MAC address.

MAC and VLAN anti-spoofing filters are to be enabled together.

Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Acked-by: Piotr Skajewski <piotrx.skajewski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-31 11:05:51 -07:00
Mitch Williams bb58fd7eef i40e: Update status codes
Add a few new status code which will be used by the ice driver, and
rename a few to make them more consistent. Error code are mapped to
similar values as in i40e_status.h, so as to be compatible with older
VF drivers not using this status enum.

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>
2018-10-31 10:57:43 -07:00
Jeff Kirsher 48e01e001d ixgbe/ixgbevf: fix XFRM_ALGO dependency
Based on the original work from Arnd Bergmann.

When XFRM_ALGO is not enabled, the new ixgbe IPsec code produces a
link error:

drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.o: In function `ixgbe_ipsec_vf_add_sa':
ixgbe_ipsec.c:(.text+0x1266): undefined reference to `xfrm_aead_get_byname'

Simply selecting XFRM_ALGO from here causes circular dependencies, so
to fix it, we probably want this slightly more complex solution that is
similar to what other drivers with XFRM offload do:

A separate Kconfig symbol now controls whether we include the IPsec
offload code. To keep the old behavior, this is left as 'default y'. The
dependency in XFRM_OFFLOAD still causes a circular dependency but is
not actually needed because this symbol is not user visible, so removing
that dependency on top makes it all work.

CC: Arnd Bergmann <arnd@arndb.de>
CC: Shannon Nelson <shannon.nelson@oracle.com>
Fixes: eda0333ac2 ("ixgbe: add VF IPsec management")
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
2018-10-31 10:53:15 -07:00
Jacob Keller 35ae5414e7 fm10k: bump driver version to match out-of-tree release
The upstream and out-of-tree drivers are once again at comparable
functionality. It's been a while since we updated the upstream driver
version, so bump it now.

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>
2018-10-31 10:49:15 -07:00
Jacob Keller 9a1fe1e2bb fm10k: add missing device IDs to the upstream driver
The device IDs for the Ethernet SDI Adapter devices were never added to
the upstream driver. The IDs are already in the pci.ids database, and
are supported by the out-of-tree driver.

Add the device IDs now, so that the upstream driver can recognize and
load these devices.

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>
2018-10-31 10:43:13 -07:00
Jacob Keller e330af7889 fm10k: ensure completer aborts are marked as non-fatal after a resume
VF drivers can trigger PCIe completer aborts any time they read a queue
that they don't own. Even in nominal circumstances, it is not possible
to prevent the VF driver from reading queues it doesn't own. VF drivers
may attempt to read queues it previously owned, but which it no longer
does due to a PF reset.

Normally these completer aborts aren't an issue. However, on some
platforms these trigger machine check errors. This is true even if we
lower their severity from fatal to non-fatal. Indeed, we already have
code for lowering the severity.

We could attempt to mask these errors conditionally around resets, which
is the most common time they would occur. However this would essentially
be a race between the PF and VF drivers, and we may still occasionally
see machine check exceptions on these strictly configured platforms.

Instead, mask the errors entirely any time we resume VFs. By doing so,
we prevent the completer aborts from being sent to the parent PCIe
device, and thus these strict platforms will not upgrade them into
machine check errors.

Additionally, we don't lose any information by masking these errors,
because we'll still report VFs which attempt to access queues via the
FUM_BAD_VF_QACCESS errors.

Without this change, on platforms where completer aborts cause machine
check exceptions, the VF reading queues it doesn't own could crash the
host system. Masking the completer abort prevents this, so we should
mask it for good, and not just around a PCIe reset. Otherwise malicious
or misconfigured VFs could cause the host system to crash.

Because we are masking the error entirely, there is little reason to
also keep setting the severity bit, so that code is also removed.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-31 10:37:32 -07:00
Ngai-Mint Kwan e69e40c806 fm10k: fix SM mailbox full condition
Current condition will always incorrectly report a full SM mailbox if an
IES API application is not running. Due to this, the
"fm10k_service_task" will be infinitely queued into the driver's
workqueue. This, in turn, will cause a "kworker" thread to report 100%
CPU utilization and might cause "soft lockup" events or system crashes.

To fix this issue, a new condition is added to determine if the SM
mailbox is in the correct state of FM10K_STATE_OPEN before proceeding.
In other words, an instance of the IES API must be running. If there is,
the remainder of the flow stays the same which is to determine if the SM
mailbox capacity has been exceeded or not and take appropriate action.

Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-31 10:31:24 -07:00
Miroslav Lichvar 094bf4d0e9 igb: shorten maximum PHC timecounter update interval
The timecounter needs to be updated at least once per ~550 seconds in
order to avoid a 40-bit SYSTIM timestamp to be misinterpreted as an old
timestamp.

Since commit 500462a9d ("timers: Switch to a non-cascading wheel"),
scheduling of delayed work seems to be less accurate and a requested
delay of 540 seconds may actually be longer than 550 seconds. Shorten
the delay to 480 seconds to be sure the timecounter is updated in time.

This fixes an issue with HW timestamps on 82580/I350/I354 being off by
~1100 seconds for few seconds every ~9 minutes.

Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-31 10:24:41 -07:00
Linus Torvalds 4904008165 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "What better way to start off a weekend than with some networking bug
  fixes:

  1) net namespace leak in dump filtering code of ipv4 and ipv6, fixed
     by David Ahern and Bjørn Mork.

  2) Handle bad checksums from hardware when using CHECKSUM_COMPLETE
     properly in UDP, from Sean Tranchetti.

  3) Remove TCA_OPTIONS from policy validation, it turns out we don't
     consistently use nested attributes for this across all packet
     schedulers. From David Ahern.

  4) Fix SKB corruption in cadence driver, from Tristram Ha.

  5) Fix broken WoL handling in r8169 driver, from Heiner Kallweit.

  6) Fix OOPS in pneigh_dump_table(), from Eric Dumazet"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (28 commits)
  net/neigh: fix NULL deref in pneigh_dump_table()
  net: allow traceroute with a specified interface in a vrf
  bridge: do not add port to router list when receives query with source 0.0.0.0
  net/smc: fix smc_buf_unuse to use the lgr pointer
  ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
  net/{ipv4,ipv6}: Do not put target net if input nsid is invalid
  lan743x: Remove SPI dependency from Microchip group.
  drivers: net: remove <net/busy_poll.h> inclusion when not needed
  net: phy: genphy_10g_driver: Avoid NULL pointer dereference
  r8169: fix broken Wake-on-LAN from S5 (poweroff)
  octeontx2-af: Use GFP_ATOMIC under spin lock
  net: ethernet: cadence: fix socket buffer corruption problem
  net/ipv6: Allow onlink routes to have a device mismatch if it is the default route
  net: sched: Remove TCA_OPTIONS from policy
  ice: Poll for link status change
  ice: Allocate VF interrupts and set queue map
  ice: Introduce ice_dev_onetime_setup
  net: hns3: Fix for warning uninitialized symbol hw_err_lst3
  octeontx2-af: Copy the right amount of memory
  net: udp: fix handling of CHECKSUM_COMPLETE packets
  ...
2018-10-26 19:25:07 -07:00
Eric Dumazet 55469bc6b5 drivers: net: remove <net/busy_poll.h> inclusion when not needed
Drivers using generic NAPI interface no longer need to include
<net/busy_poll.h>, since busy polling was moved to core networking
stack long ago.

See commit 79e7fff47b ("net: remove support for per driver
ndo_busy_poll()") for reference.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-25 16:20:02 -07:00
Linus Torvalds bd6bf7c104 pci-v4.20-changes
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Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - Fix ASPM link_state teardown on removal (Lukas Wunner)

 - Fix misleading _OSC ASPM message (Sinan Kaya)

 - Make _OSC optional for PCI (Sinan Kaya)

 - Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set
   (Patrick Talbert)

 - Remove x86 and arm64 node-local allocation for host bridge structures
   (Punit Agrawal)

 - Pay attention to device-specific _PXM node values (Jonathan Cameron)

 - Support new Immediate Readiness bit (Felipe Balbi)

 - Differentiate between pciehp surprise and safe removal (Lukas Wunner)

 - Remove unnecessary pciehp includes (Lukas Wunner)

 - Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner)

 - Tolerate PCIe Slot Presence Detect being hardwired to zero to
   workaround broken hardware, e.g., the Wilocity switch/wireless device
   (Lukas Wunner)

 - Unify pciehp controller & slot structs (Lukas Wunner)

 - Constify hotplug_slot_ops (Lukas Wunner)

 - Drop hotplug_slot_info (Lukas Wunner)

 - Embed hotplug_slot struct into users instead of allocating it
   separately (Lukas Wunner)

 - Initialize PCIe port service drivers directly instead of relying on
   initcall ordering (Keith Busch)

 - Restore PCI config state after a slot reset (Keith Busch)

 - Save/restore DPC config state along with other PCI config state
   (Keith Busch)

 - Reference count devices during AER handling to avoid race issue with
   concurrent hot removal (Keith Busch)

 - If an Upstream Port reports ERR_FATAL, don't try to read the Port's
   config space because it is probably unreachable (Keith Busch)

 - During error handling, use slot-specific reset instead of secondary
   bus reset to avoid link up/down issues on hotplug ports (Keith Busch)

 - Restore previous AER/DPC handling that does not remove and
   re-enumerate devices on ERR_FATAL (Keith Busch)

 - Notify all drivers that may be affected by error recovery resets
   (Keith Busch)

 - Always generate error recovery uevents, even if a driver doesn't have
   error callbacks (Keith Busch)

 - Make PCIe link active reporting detection generic (Keith Busch)

 - Support D3cold in PCIe hierarchies during system sleep and runtime,
   including hotplug and Thunderbolt ports (Mika Westerberg)

 - Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots
   are empty or occupied (Jon Derrick)

 - Remove duplicated include from pci/pcie/err.c and unused variable
   from cpqphp (YueHaibing)

 - Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza
   Pawandeep)

 - Uninline PCI bus accessors for better ftracing (Keith Busch)

 - Remove unused AER Root Port .error_resume method (Keith Busch)

 - Use kfifo in AER instead of a local version (Keith Busch)

 - Use threaded IRQ in AER bottom half (Keith Busch)

 - Use managed resources in AER core (Keith Busch)

 - Reuse pcie_port_find_device() for AER injection (Keith Busch)

 - Abstract AER interrupt handling to disconnect error injection (Keith
   Busch)

 - Refactor AER injection callbacks to simplify future improvments
   (Keith Busch)

 - Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski)

 - Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko)

 - Add switch fall-through annotations (Gustavo A. R. Silva)

 - Remove unused Switchtec quirk variable (Joshua Abraham)

 - Fix pci.c kernel-doc warning (Randy Dunlap)

 - Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig)

 - Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng)

 - Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid
   useless dmesg errors (Logan Gunthorpe)

 - Update Switchtec NTB documentation (Wesley Yung)

 - Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz)

 - Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang)

 - Add PCI support for peer-to-peer DMA (Logan Gunthorpe)

 - Add sysfs group for PCI peer-to-peer memory statistics (Logan
   Gunthorpe)

 - Add PCI peer-to-peer DMA scatterlist mapping interface (Logan
   Gunthorpe)

 - Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan
   Gunthorpe)

 - Add PCI peer-to-peer DMA driver writer's documentation (Logan
   Gunthorpe)

 - Add block layer flag to indicate driver support for PCI peer-to-peer
   DMA (Logan Gunthorpe)

 - Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P
   memory (Logan Gunthorpe)

 - Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan
   Gunthorpe)

 - Add nvme-pci support for PCI peer-to-peer memory in requests (Logan
   Gunthorpe)

 - Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise,
   Christoph Hellwig, Logan Gunthorpe)

 - Cache VF config space size to optimize enumeration of many VFs
   (KarimAllah Ahmed)

 - Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas)

 - Fix VMD AERSID quirk Device ID matching (Jon Derrick)

 - Fix Cadence PHY handling during probe (Alan Douglas)

 - Signal Cadence Endpoint interrupts via AXI region 0 instead of last
   region (Alan Douglas)

 - Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan
   Douglas)

 - Remove redundant controller tests for "device_type == pci" (Rob
   Herring)

 - Document R-Car E3 (R8A77990) bindings (Tho Vu)

 - Add device tree support for R-Car r8a7744 (Biju Das)

 - Drop unused mvebu PCIe capability code (Thomas Petazzoni)

 - Add shared PCI bridge emulation code (Thomas Petazzoni)

 - Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni)

 - Add aardvark Root Port emulation (Thomas Petazzoni)

 - Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach)

 - Add initial power management for i.MX7 (Leonard Crestez)

 - Add PME_Turn_Off support for i.MX7 (Leonard Crestez)

 - Fix qcom runtime power management error handling (Bjorn Andersson)

 - Update TI dra7xx unaligned access errata workaround for host mode as
   well as endpoint mode (Vignesh R)

 - Fix kirin section mismatch warning (Nathan Chancellor)

 - Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare)

 - Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I)

 - Update Keystone to use MRRS quirk for host bridge instead of open
   coding (Kishon Vijay Abraham I)

 - Refactor Keystone link establishment (Kishon Vijay Abraham I)

 - Simplify and speed up Keystone link training (Kishon Vijay Abraham I)

 - Remove unused Keystone host_init argument (Kishon Vijay Abraham I)

 - Merge Keystone driver files into one (Kishon Vijay Abraham I)

 - Remove redundant Keystone platform_set_drvdata() (Kishon Vijay
   Abraham I)

 - Rename Keystone functions for uniformity (Kishon Vijay Abraham I)

 - Add Keystone device control module DT binding (Kishon Vijay Abraham
   I)

 - Use SYSCON API to get Keystone control module device IDs (Kishon
   Vijay Abraham I)

 - Clean up Keystone PHY handling (Kishon Vijay Abraham I)

 - Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I)

 - Clean up Keystone config space access checks (Kishon Vijay Abraham I)

 - Get Keystone outbound window count from DT (Kishon Vijay Abraham I)

 - Clean up Keystone outbound window configuration (Kishon Vijay Abraham
   I)

 - Clean up Keystone DBI setup (Kishon Vijay Abraham I)

 - Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I)

 - Fix Keystone IRQ status checking (Kishon Vijay Abraham I)

 - Add debug messages for all Keystone errors (Kishon Vijay Abraham I)

 - Clean up Keystone includes and macros (Kishon Vijay Abraham I)

 - Fix Mediatek unchecked return value from devm_pci_remap_iospace()
   (Gustavo A. R. Silva)

 - Fix Mediatek endpoint/port matching logic (Honghui Zhang)

 - Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui
   Zhang)

 - Remove redundant Mediatek PM domain check (Honghui Zhang)

 - Convert Mediatek to pci_host_probe() (Honghui Zhang)

 - Fix Mediatek MSI enablement (Honghui Zhang)

 - Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang)

 - Add Mediatek loadable module support (Honghui Zhang)

 - Detach VMD resources after stopping root bus to prevent orphan
   resources (Jon Derrick)

 - Convert pcitest build process to that used by other tools (iio, perf,
   etc) (Gustavo Pimentel)

* tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
  PCI/AER: Refactor error injection fallbacks
  PCI/AER: Abstract AER interrupt handling
  PCI/AER: Reuse existing pcie_port_find_device() interface
  PCI/AER: Use managed resource allocations
  PCI: pcie: Remove redundant 'default n' from Kconfig
  PCI: aardvark: Implement emulated root PCI bridge config space
  PCI: mvebu: Convert to PCI emulated bridge config space
  PCI: mvebu: Drop unused PCI express capability code
  PCI: Introduce PCI bridge emulated config space common logic
  PCI: vmd: Detach resources after stopping root bus
  nvmet: Optionally use PCI P2P memory
  nvmet: Introduce helper functions to allocate and free request SGLs
  nvme-pci: Add support for P2P memory in requests
  nvme-pci: Use PCI p2pmem subsystem to manage the CMB
  IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()
  block: Add PCI P2P flag for request queue
  PCI/P2PDMA: Add P2P DMA driver writer's documentation
  docs-rst: Add a new directory for PCI documentation
  PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers
  PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset
  ...
2018-10-25 06:50:48 -07:00
Anirudh Venkataramanan 4f4be03bde ice: Poll for link status change
When the physical link goes up or down, the driver is supposed to
receive a link status event (LSE). The driver currently has the code
to handle LSEs but there is no firmware support for this feature yet.
So this patch adds the ability for the driver to poll for link status
changes. The polling itself is done in ice_watchdog_subtask.

For namespace cleanliness, this patch also removes code that handles
LSE. This code will be reintroduced once the feature is officially
supported.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-24 14:30:40 -07:00
Anirudh Venkataramanan 982b121918 ice: Allocate VF interrupts and set queue map
Allocate VF interrupts using VPINT_ALLOC_PCI. Multiple interrupts are
specified as a range from "first" to "last".

Also, according to the spec, the queue mapping for a VF needs to be set
in both contig and scatter queue modes. So make this change as well.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-24 14:30:35 -07:00
Anirudh Venkataramanan f203dca363 ice: Introduce ice_dev_onetime_setup
ice_dev_onetime_setup contains a couple of driver workarounds for current
firmware limitations. These workarounds are expected to go away once
these limitations are fixed in the firmware.

On a firmware release that has these issues addressed, these workarounds
(while unnecessary) will not break anything.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-24 14:29:55 -07:00
Anirudh Venkataramanan 99189e8b6b ice: Use capability count returned by the firmware
The firmware now returns the capability count in the command buffer.
Use it.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-24 14:00:05 -07:00
Anirudh Venkataramanan ac5a8aef11 ice: Update expected FW version
Update to the current firmware major and minor version which are
1 and 3 respectively.

Also remove an empty comment line.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-24 13:56:37 -07:00
Anirudh Venkataramanan 633d7449a3 ice: Change device ID define names to align with branding string
Basically remove references to C810 and use E810C (from the branding
string) instead.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-24 13:53:30 -07:00
Anirudh Venkataramanan f3aaaaaae2 ice: Make ice_msix_clean_rings static
commit 158a08a694 ("ice: remove ndo_poll_controller") removed
ice_netpoll and introduced a namespace warning for ice_msix_clean_rings.
Fix the namespace warning by making ice_msix_clean_rings static.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-24 13:35:36 -07:00
Jeff Kirsher 828092ef77 Documentation: intel: Convert to RST format
Now that the documents have been updated to conform to the reStructured Text
guidelines, we can now change the file extensions and update the other
related references.

This converts all of the Intel wired LAN driver documentation to *.rst.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2018-10-18 12:41:29 -07:00
Jeff Kirsher f12a84a9f6 Documentation: fm10k: Add kernel documentation
Added the fm10k kernel documentation, which apparently was missing.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2018-10-18 12:39:39 -07:00
Sasha Neftin 208983f099 igc: Add watchdog
Code completion, remove obsolete code
Add watchdog methods

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:58:47 -07:00
Sasha Neftin 4eb8080143 igc: Add setup link functionality
Add link establishment methods
Add auto negotiation methods
Add read MAC address method

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:56:55 -07:00
Sasha Neftin 5586838fe9 igc: Add code for PHY support
Add PHY's ID support
Add support for initialization, acquire and release of PHY
Enable register access

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:55:18 -07:00
Sasha Neftin ab40561268 igc: Add NVM support
Add code for NVM support and get MAC address, complete probe
method.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:52:00 -07:00
Sasha Neftin c0071c7aa5 igc: Add HW initialization code
Add code for hardware initialization and reset
Add code for semaphore handling

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:49:33 -07:00
Sasha Neftin 0507ef8a03 igc: Add transmit and receive fastpath and interrupt handlers
This patch adds support for allocating, configuring, and freeing Tx/Rx ring
resources.  With these changes in place the descriptor queues are in a
state where they are ready to transmit or receive if provided buffers.

This also adds the transmit and receive fastpath and interrupt handlers.
With this code in place the network device is now able to send and receive
frames over the network interface using a single queue.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:46:51 -07:00
Sasha Neftin 13b5b7fd6a igc: Add support for Tx/Rx rings
This change adds the defines and structures necessary to support both Tx
and Rx descriptor rings.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:20:43 -07:00
Sasha Neftin 3df25e4c1e igc: Add interrupt support
This patch set adds interrupt support for the igc interfaces.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:16:19 -07:00
Sasha Neftin c9a11c23ce igc: Add netdev
Now that we have the ability to configure the basic settings on the device
we can start allocating and configuring a netdev for the interface.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:14:03 -07:00
Sasha Neftin 146740f9ab igc: Add support for PF
This patch adds the basic defines and structures needed by the PF for
operation. With this it is possible to bring up the interface,
but without being able to configure any of the filters on
the interface itself.
Add skeleton for a function pointers.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 13:06:24 -07:00
Sasha Neftin d89f88419f igc: Add skeletal frame for Intel(R) 2.5G Ethernet Controller support
This patch adds the beginning framework onto which I am going to add
the igc driver which supports the Intel(R) I225-LM/I225-V 2.5G
Ethernet Controller.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-17 12:14:54 -07:00
David S. Miller 6f41617bf2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor conflict in net/core/rtnetlink.c, David Ahern's bug fix in 'net'
overlapped the renaming of a netlink attribute in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-03 21:00:17 -07:00
Song Liu 4233cfe6ec ixgbe: check return value of napi_complete_done()
The NIC driver should only enable interrupts when napi_complete_done()
returns true. This patch adds the check for ixgbe.

Cc: stable@vger.kernel.org # 4.10+
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Song Liu <songliubraving@fb.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>
2018-10-03 14:40:32 -07:00
Rami Rosen 37ebb5fa6f iavf: fix a typo
This trivial patch fixes a typo in iavf.h.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-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>
2018-10-03 12:56:36 -07:00
Björn Töpel 8221c5eba8 ixgbe: add AF_XDP zero-copy Tx support
This patch adds zero-copy Tx support for AF_XDP sockets. It implements
the ndo_xsk_async_xmit netdev ndo and performs all the Tx logic from a
NAPI context. This means pulling egress packets from the Tx ring,
placing the frames on the NIC HW descriptor ring and completing sent
frames back to the application via the completion ring.

The regular XDP Tx ring is used for AF_XDP as well. This rationale for
this is as follows: XDP_REDIRECT guarantees mutual exclusion between
different NAPI contexts based on CPU id. In other words, a netdev can
XDP_REDIRECT to another netdev with a different NAPI context, since
the operation is bound to a specific core and each core has its own
hardware ring.

As the AF_XDP Tx action is running in the same NAPI context and using
the same ring, it will also be protected from XDP_REDIRECT actions
with the exact same mechanism.

As with AF_XDP Rx, all AF_XDP Tx specific functions are added to
ixgbe_xsk.c.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:54:37 -07:00
Björn Töpel 05ae861450 ixgbe: move common Tx functions to ixgbe_txrx_common.h
This patch prepares for the upcoming zero-copy Tx functionality by
moving common functions used both by the regular path and zero-copy
path.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:52:08 -07:00
Björn Töpel d0bcacd0a1 ixgbe: add AF_XDP zero-copy Rx support
This patch adds zero-copy Rx support for AF_XDP sockets. Instead of
allocating buffers of type MEM_TYPE_PAGE_SHARED, the Rx frames are
allocated as MEM_TYPE_ZERO_COPY when AF_XDP is enabled for a certain
queue.

All AF_XDP specific functions are added to a new file, ixgbe_xsk.c.

Note that when AF_XDP zero-copy is enabled, the XDP action XDP_PASS
will allocate a new buffer and copy the zero-copy frame prior passing
it to the kernel stack.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:51:14 -07:00
Björn Töpel 46515fdb1a ixgbe: move common Rx functions to ixgbe_txrx_common.h
This patch prepares for the upcoming zero-copy Rx functionality, by
moving/changing linkage of common functions, used both by the regular
path and zero-copy path.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:40:44 -07:00
Björn Töpel 024aa5800f ixgbe: added Rx/Tx ring disable/enable functions
Add functions for Rx/Tx ring enable/disable. Instead of resetting the
whole device, only the affected ring is disabled or enabled.

This plumbing is used in later commits, when zero-copy AF_XDP support
is introduced.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:38:40 -07:00
Radoslaw Tyl 5d826d2091 ixgbe: Fix crash with VFs and flow director on interface flap
This patch fix crash when we have restore flow director filters after reset
adapter. In ixgbe_fdir_filter_restore() filter->action is outside of the
rx_ring array, as it has a VF identifier in the upper 32 bits.

Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:36:20 -07:00
Nathan Chancellor 92fb7aaff8 i40e: Remove unnecessary print statement
Clang warns that the address of a pointer will always evaluated as true
in a boolean context.

drivers/net/ethernet/intel/i40e/i40e_debugfs.c:136:9: warning: address
of array 'vsi->active_vlans' will always evaluate to 'true'
[-Wpointer-bool-conversion]
                 vsi->active_vlans ? "<valid>" : "<null>");
                 ~~~~~^~~~~~~~~~~~ ~
./include/linux/device.h:1431:33: note: expanded from macro 'dev_info'
        _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
                                       ^~~~~~~~~~~
1 warning generated.

Given that the statement shows that active_vlans is always valid, just
remove the statement since it's not giving any useful information.

Link: https://github.com/ClangBuiltLinux/linux/issues/82
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:33:34 -07:00
Nathan Chancellor 43ade6ad18 i40e: Use proper enum in i40e_ndo_set_vf_link_state
Clang warns when one enumerated type is converted implicitly to another.

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4214:42: warning:
implicit conversion from enumeration type 'enum i40e_aq_link_speed' to
different enumeration type 'enum virtchnl_link_speed'
      [-Wenum-conversion]
                pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
                                                     ~ ^~~~~~~~~~~~~~~~~~~~
1 warning generated.

Use the proper enum from virtchnl_link_speed, which has the same value
as I40E_LINK_SPEED_40GB, VIRTCHNL_LINK_SPEED_40GB. This appears to be
missed by commit ff3f4cc267 ("virtchnl: finish conversion to virtchnl
interface").

Link: https://github.com/ClangBuiltLinux/linux/issues/81
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:31:47 -07:00
Dan Carpenter 617cc646a7 ixgbevf: off by one in ixgbevf_ipsec_tx()
The ipsec->tx_tbl[] array has IXGBE_IPSEC_MAX_SA_COUNT elements so the >
should be a >=.

Fixes: 0062e7cc95 ("ixgbevf: add VF IPsec offload code")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:29:34 -07:00
YueHaibing 6b27f3de22 ixgbe: remove redundant function ixgbe_fw_recovery_mode()
There are no in-tree callers.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:28:04 -07:00
Radoslaw Tyl 8d7179b1e2 ixgbe: Fix ixgbe TX hangs with XDP_TX beyond queue limit
We have Tx hang when number Tx and XDP queues are more than 64.
In XDP always is MTQC == 0x0 (64TxQs). We need more space for Tx queues.

Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 12:26:05 -07:00
Shannon Nelson 2c49d34f3b ixgbevf: fix msglen for ipsec mbx messages
Don't be fancy with message lengths, just set lengths to
number of dwords, not bytes.

Fixes: 0062e7cc95 ("ixgbevf: add VF IPsec offload code")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 11:42:40 -07:00
Anirudh Venkataramanan 5cc6c8b30c ice: Update version string
Update version string to 0.7.2-k

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Dave Ertman 124cd54796 ice: Use the right function to enable/disable VSI
The ice_ena/dis_vsi should have a single differentiating
factor to determine if the netdev_ops call is used or a
direct call to ice_vsi_open/close.  This is if the netif is
running or not.  If netif is running, use ndo_open/ndo_close.
Else, use ice_vsi_open/ice_vsi_close.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Brett Creeley d2b464a7ff ice: Add more flexibility on how we assign an ITR index
This issue came about when looking at the VF function
ice_vc_cfg_irq_map_msg. Currently we are assigning the itr_setting value
to the itr_idx received from the AVF driver, which is not correct and is
not used for the VF flow anyway. Currently the only way we set the ITR
index for both the PF and VF driver is by hard coding ICE_TX_ITR or
ICE_RX_ITR for the ITR index on each q_vector.

To fix this, add the member itr_idx in struct ice_ring_container. This
can then be used to dynamically program the correct ITR index. This change
also affected the PF driver so make the necessary changes there as well.

Also, removed the itr_setting member in struct ice_ring because it is not
being used meaningfully and is going to be removed in a future patch that
includes dynamic ITR.

On another note, this will be useful moving forward if we decide to split
Rx/Tx rings on different q_vectors instead of sharing them as queue pairs.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Dave Ertman 072f0c3db9 ice: Fix potential null pointer issues
Add checks in the filter handling flow to avoid dereferencing
NULL pointers.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Brett Creeley c60cdb13ec ice: Add code to go from ICE_FWD_TO_VSI_LIST to ICE_FWD_TO_VSI
When a switch rule is initially created we set the filter action to
ICE_FWD_TO_VSI. The filter action changes to ICE_FWD_TO_VSI_LIST
whenever more than one VSI is subscribed to the same switch rule. When
the switch rule goes from 2 VSIs in the list to 1 VSI we remove and
delete the VSI list rule, but we currently don't update the switch rule
in hardware. This is causing switch rules to be lost, so fix that by
making a call to ice_update_pkt_fwd_rule() with the necessary changes.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Anirudh Venkataramanan be8ff000bf ice: Fix forward to queue group logic
When adding a rule, queue region size needs to be provided as log base 2
of the number of queues in region. Fix that.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Anirudh Venkataramanan 7c4bc1f576 ice: Extend malicious operations detection logic
This patch extends the existing malicious driver operation detection
logic to cover malicious operations by the VF driver as well.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Anirudh Venkataramanan 53b8decbb7 ice: Notify VF of link status change
When PF gets a link status change event, notify the VFs of the same.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Anirudh Venkataramanan 1071a8358a ice: Implement virtchnl commands for AVF support
virtchnl is a protocol/interface specification that allows the Intel
"Adaptive Virtual Function (AVF)" driver (iavf.ko) to work with more than
one physical function driver. The AVF driver sends "virtchnl commands"
(control plane only) to the PF driver over mailbox queues and the PF driver
executes these commands and returns a result to the VF, again over mailbox.

This patch adds AVF support for the ice PF driver by implementing the
following virtchnl commands:

VIRTCHNL_OP_VERSION
VIRTCHNL_OP_GET_VF_RESOURCES
VIRTCHNL_OP_RESET_VF
VIRTCHNL_OP_ADD_ETH_ADDR
VIRTCHNL_OP_DEL_ETH_ADDR
VIRTCHNL_OP_CONFIG_VSI_QUEUES
VIRTCHNL_OP_ENABLE_QUEUES
VIRTCHNL_OP_DISABLE_QUEUES
VIRTCHNL_OP_ADD_ETH_ADDR
VIRTCHNL_OP_DEL_ETH_ADDR
VIRTCHNL_OP_CONFIG_VSI_QUEUES
VIRTCHNL_OP_ENABLE_QUEUES
VIRTCHNL_OP_DISABLE_QUEUES
VIRTCHNL_OP_REQUEST_QUEUES
VIRTCHNL_OP_CONFIG_IRQ_MAP
VIRTCHNL_OP_CONFIG_RSS_KEY
VIRTCHNL_OP_CONFIG_RSS_LUT
VIRTCHNL_OP_GET_STATS
VIRTCHNL_OP_ADD_VLAN
VIRTCHNL_OP_DEL_VLAN
VIRTCHNL_OP_ENABLE_VLAN_STRIPPING
VIRTCHNL_OP_DISABLE_VLAN_STRIPPING

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Anirudh Venkataramanan 7c710869d6 ice: Add handlers for VF netdevice operations
This patch implements handlers for the following NDO operations:

.ndo_set_vf_spoofchk
.ndo_set_vf_mac
.ndo_get_vf_config
.ndo_set_vf_trust
.ndo_set_vf_vlan
.ndo_set_vf_link_state

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Anirudh Venkataramanan 007676b4ac ice: Add support for VF reset events
Post VF initialization, there are a couple of different ways in which a
VF reset can be triggered. One is when the underlying PF itself goes
through a reset and other is via a VFLR interrupt. ice_reset_vf introduced
in this patch handles both these cases.

Also introduced in this patch is a helper function ice_aq_send_msg_to_vf
to send messages to VF over the mailbox queue. The PF uses this to send
reset notifications to VFs.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:30 -07:00
Anirudh Venkataramanan 8ede01785f ice: Update VSI and queue management code to handle VF VSI
Until now, all the VSI and queue management code supported only the PF
VSI type (ICE_VSI_PF). Update these flows to handle the VF VSI type
(ICE_VSI_VF) type as well.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:29 -07:00
Anirudh Venkataramanan ddf30f7ff8 ice: Add handler to configure SR-IOV
This patch implements parts of ice_sriov_configure and VF reset flow.

To create virtual functions (VFs), the user sets a value in num_vfs
through sysfs. This results in the kernel calling the handler for
.sriov_configure which is ice_sriov_configure.

VF setup first starts with a VF reset, followed by allocation of the VF
VSI using ice_vf_vsi_setup. Once the VF setup is complete a state bit
ICE_VF_STATE_INIT is set in the vf->states bitmap to indicate that
the VF is ready to go.

Also for VF reset to go into effect, it's necessary to issue a disable
queue command (ice_aqc_opc_dis_txqs). So this patch updates multiple
functions in the disable queue flow to take additional parameters that
distinguish if queues are being disabled due to VF reset.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:29 -07:00
Anirudh Venkataramanan 75d2b25302 ice: Add support to detect SR-IOV capability and mailbox queues
Mailbox queue is a type of control queue that's used for communication
between PF and VF. This patch adds code to initialize, configure and
use mailbox queues.

This patch also adds support to detect and parse SR-IOV capabilities
returned by the hardware.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-03 07:42:29 -07:00
Oza Pawandeep 62b36c3ea6 PCI/AER: Remove pci_cleanup_aer_uncorrect_error_status() calls
After bfcb79fca1 ("PCI/ERR: Run error recovery callbacks for all affected
devices"), AER errors are always cleared by the PCI core and drivers don't
need to do it themselves.

Remove calls to pci_cleanup_aer_uncorrect_error_status() from device
driver error recovery functions.

Signed-off-by: Oza Pawandeep <poza@codeaurora.org>
[bhelgaas: changelog, remove PCI core changes, remove unused variables]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-02 16:04:40 -05:00
Dave Ertman 81b23589f4 ice: Fix error on driver remove
If the driver is unloaded when traffic is in progress, errors are
generated. Fix this by releasing qvectors and NAPI handler on remove.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:20:31 -07:00
Brett Creeley 9e4ab4c29a ice: Add support for dynamic interrupt moderation
Currently there is no support for dynamic interrupt moderation. This
patch adds some initial code to support this. The following changes
were made:

1. Currently we are using multiple members to store the interrupt
   granularity (itr_gran_25/50/100/200). This is not necessary because
   we can query the device to determine what the interrupt granularity
   should be set to, done by a new function ice_get_itr_intrl_gran.

2. Added intrl to ice_q_vector structure to support interrupt rate
   limiting.

3. Added the function ice_intrl_usecs_to_reg for converting to a value
   in usecs that the device understands.

4. Added call to write to the GLINT_RATE register. Disable intrl by
   default for now.

5. Changed rx/tx_itr_setting to itr_setting because having both seems
   redundant because a ring is either Tx or Rx.

6. Initialize itr_setting for both Tx/Rx rings in ice_vsi_alloc_rings()

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:19:30 -07:00
Brett Creeley ca4929b6df ice: Align ice_reset_req enum values to hardware reset values
Currently the ice_reset_req enum values have to be translated into
a different set of values that the hardware understands for the same
reset types. Avoid this translation by aligning ice_reset_req enum
values to the ones that the hardware understands.

Also add and else if block to check for ICE_RESET_EMPR and put a dev_dbg
message in the else case.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:18:20 -07:00
Md Fahad Iqbal Polash 492af0ab4f ice: Implement ethtool hook for RSS switch
This patch implements ethtool hook for enabling/disabling
RSS. While disabling RSS, the LUT should be cleared. And
the LUT should be reconfigured while enabling RSS.

Signed-off-by: Md Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:17:18 -07:00
Preethi Banala eb0208ec42 ice: Split irq_tracker into sw_irq_tracker and hw_irq_tracker
For the PF driver, when mapping interrupts to queues, we need to request
IRQs from the kernel and we also have to allocate interrupts from
the device.

Similarly, when the VF driver (iavf.ko) initializes, it requests the kernel
IRQs that it needs but it can't directly allocate interrupts in the device.
Instead, it sends a mailbox message to the ice driver, which then allocates
interrupts in the device on the VF driver's behalf.

Currently both these cases end up having to reserve entries in
pf->irq_tracker but irq_tracker itself is sized based on how many vectors
the PF driver needs. Under the right circumstances, the VF driver can fail
to get entries in irq_tracker, which will result in the VF driver failing
probe.

To fix this, sw_irq_tracker and hw_irq_tracker are introduced. The
sw_irq_tracker tracks only the PF's IRQ request and doesn't play any
role in VF init. hw_irq_tracker represents the device's interrupt space.
When interrupts have to be allocated in the device for either PF or VF,
hw_irq_tracker will be looked up to see if the device has run out of
interrupts.

Signed-off-by: Preethi Banala <preethi.banala@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:16:19 -07:00
Dave Ertman 5755143dd1 ice: Check for actual link state of port after reset
We are currently replaying the link state of a port after a reset, but
it is possible that the link state of a port can change during the reset
process. So check for the current link state of a port during the rebuild
process of a reset.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:15:22 -07:00
Anirudh Venkataramanan 334cb0626d ice: Implement VSI replay framework
Currently, switch filters get replayed after reset. In addition to
filters, other VSI attributes (like RSS configuration, Tx scheduler
configuration, etc.) also need to be replayed after reset.

Thus, instead of replaying based on functional blocks (i.e. replay
all filters for all VSIs, followed by RSS configuration replay for
all VSIs, and so on), it makes more sense to have the replay centered
around a VSI. In other words, replay all configurations for a VSI before
moving on to rebuilding the next VSI.

To that effect, this patch introduces a VSI replay framework in a new
function ice_vsi_replay_all. Currently it only replays switch filters,
but it will be expanded in the future to replay additional VSI attributes.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:14:23 -07:00
Anirudh Venkataramanan 4fb33f3107 ice: Expand use of VSI handles part 2/2
This patch is a continuation of the previous patch where VSI
handles are used instead of VSI numbers.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:13:23 -07:00
Anirudh Venkataramanan 5726ca0e5e ice: Expand use of VSI handles part 1/2
A VSI handle is just a number the driver maintains to uniquely identify
a VSI. A VSI handle is backed by a VSI number in the hardware. When
interacting when the hardware, VSI handles are converted into VSI numbers.

In commit 0f9d5027a7 ("ice: Refactor VSI allocation, deletion and
rebuild flow"), VSI handles were introduced but it was used only
when creating and deleting VSIs. This patch is part one of two patches
that expands the use of VSI handles across the rest of the driver. Also
in this patch, certain parts of the code had to be refactored to correctly
use VSI handles.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-02 07:11:57 -07:00
Dave Ertman 5df7e45d54 ice: Change pf state behavior to protect reset path
Currently, there is no bit, or set of bits, that protect the entirety
of the reset path.

If the reset is originated by the driver, then the relevant
one of the following bits will be set when the reset is scheduled:
__ICE_PFR_REQ
__ICE_CORER_REQ
__ICE_GLOBR_REQ
This bit will not be cleared until after the rebuild has completed.

If the reset is originated by the FW, then the first the driver knows of
it will be the reception of the OICR interrupt.  The __ICE_RESET_OICR_RECV
bit will be set in the interrupt handler.  This will also be the indicator
in a SW originated reset that we have completed the pre-OICR tasks and
have informed the FW that a reset was requested.

To utilize these bits, change the function:
ice_is_reset_recovery_pending()
	to be:
ice_is_reset_in_progress()

The new function will check all of the above bits in the pf->state and
will return a true if one or more of these bits are set.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:50:50 -07:00
Anirudh Venkataramanan 37bb839012 ice: Move common functions out of ice_main.c part 7/7
This patch completes the code move out of ice_main.c

The following top level functions and related dependency functions) were
moved to ice_lib.c:
ice_vsi_setup
ice_vsi_cfg_tc

The following functions were made static again:
ice_vsi_setup_vector_base
ice_vsi_alloc_q_vectors
ice_vsi_get_qs
void ice_vsi_map_rings_to_vectors
ice_vsi_alloc_rings
ice_vsi_set_rss_params
ice_vsi_set_num_qs
ice_get_free_slot
ice_vsi_init
ice_vsi_alloc_arrays

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:50:30 -07:00
Anirudh Venkataramanan df0f847915 ice: Move common functions out of ice_main.c part 6/7
This patch continues the code move out of ice_main.c

The following top level functions (and related dependency functions) were
moved to ice_lib.c:
ice_vsi_setup_vector_base
ice_vsi_alloc_q_vectors
ice_vsi_get_qs

The following functions were made static again:
ice_vsi_free_arrays
ice_vsi_clear_rings

Also, in this patch, the netdev and NAPI registration logic was de-coupled
from the VSI creation logic (ice_vsi_setup) as for SR-IOV, while we want to
create VF VSIs using ice_vsi_setup, we don't want to create netdevs.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:50:06 -07:00
Anirudh Venkataramanan 07309a0e59 ice: Move common functions out of ice_main.c part 5/7
This patch continues the code move out of ice_main.c

The following top level functions (and related dependency functions) were
moved to ice_lib.c:
ice_vsi_clear
ice_vsi_close
ice_vsi_free_arrays
ice_vsi_map_rings_to_vectors

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:49:45 -07:00
Anirudh Venkataramanan 28c2a64573 ice: Move common functions out of ice_main.c part 4/7
This patch continues the code move out of ice_main.c

The following top level functions (and related dependency functions) were
moved to ice_lib.c:
ice_vsi_alloc_rings
ice_vsi_set_rss_params
ice_vsi_set_num_qs
ice_get_free_slot
ice_vsi_init
ice_vsi_clear_rings
ice_vsi_alloc_arrays

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:49:21 -07:00
Anirudh Venkataramanan 5153a18e57 ice: Move common functions out of ice_main.c part 3/7
This patch continues the code move out of ice_main.c

The following top level functions (and related dependency functions) were
moved to ice_lib.c:
ice_vsi_delete
ice_free_res
ice_get_res
ice_is_reset_recovery_pending
ice_vsi_put_qs
ice_vsi_dis_irq
ice_vsi_free_irq
ice_vsi_free_rx_rings
ice_vsi_free_tx_rings
ice_msix_clean_rings

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:48:58 -07:00
Anirudh Venkataramanan 72adf2421d ice: Move common functions out of ice_main.c part 2/7
This patch continues the code move out of ice_main.c

The following top level functions (and related dependency functions) were
moved to ice_lib.c:
ice_vsi_start_rx_rings
ice_vsi_stop_rx_rings
ice_vsi_stop_tx_rings
ice_vsi_cfg_rxqs
ice_vsi_cfg_txqs
ice_vsi_cfg_msix

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:45:56 -07:00
Anirudh Venkataramanan 45d3d428ea ice: Move common functions out of ice_main.c part 1/7
The functions that are used for PF VSI/netdev setup will also be used
for SR-IOV support. To allow reuse of these functions, move these
functions out of ice_main.c to ice_common.c/ice_lib.c

This move is done across multiple patches. Each patch moves a few
functions and may have minor adjustments. For example, a function that was
previously static in ice_main.c will be made non-static temporarily in
its new location to allow the driver to build cleanly. These adjustments
will be removed in subsequent patches where more code is moved out of
ice_main.c

In this particular patch, the following functions were moved out of
ice_main.c:
int ice_add_mac_to_list
ice_free_fltr_list
ice_stat_update40
ice_stat_update32
ice_update_eth_stats
ice_vsi_add_vlan
ice_vsi_kill_vlan
ice_vsi_manage_vlan_insertion
ice_vsi_manage_vlan_stripping

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-10-01 12:39:40 -07:00
Bruce Allan 3b6bf296c4 ice: fix changing of ring descriptor size (ethtool -G)
rx_mini_pending was set to an incorrect value. This was causing EINVAL to
always be returned to 'ethtool -G'. The driver does not support mini or
jumbo rings so the respective settings should be zero.

Also, change the valid range of the number of descriptors in the rings to
make the code simpler and easier for users to understand (this removes the
valid settings of 8 and 16). Add a system log message indicating when the
number is rounded-up from what the user specifies with the 'ethtool -G'
command (i.e. when it is not a multiple of 32), and update the log message
when a user-provided value is out of range to also indicate the stride.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
Anirudh Venkataramanan 7d86cf3840 ice: Update to capabilities admin queue command
This patch makes a couple of changes in the way the driver uses the
"get capabilities" command.

1. Get device capabilities in addition to function capabilities

2. Align to latest spec by using cap_count to determine size of the
   buffer in case of length error.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
Anirudh Venkataramanan 1886588fb6 ice: Query the Tx scheduler node before adding it
Query the Tx scheduler tree node information from FW before adding it to
the driver's software database. This will keep the node information current
in driver.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
Brett Creeley 8bc8d188cd ice: Update comment for ice_fltr_mgmt_list_entry
Previously the comment stated that VSI lists should be used when a
second VSI becomes a subscriber to the "VLAN address". VSI lists
are always used for VLAN membership, so replace "VLAN address" with
"MAC address". Also note that VLAN(s) always use VSI list rules.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
Jacob Keller b2ccf317ed ice: update fw version check logic
We have MAX_FW_API_VER_BRANCH, MAX_FW_API_VER_MAJOR, and
MAX_FW_API_VER_MINOR that we use in ice_controlq.h to test when a
firmware version is newer than expected. This is currently tested by
comparing each field separately. Thus, we compare the branch field
against the MAX_FW_API_VER_BRANCH, and so forth.

This means that currently, if we suppose that the max firmware version
is defined as 0.2.1, i.e.

Then firmware 0.1.3 will fail to load. This is because the minor version
3 is greater than the max minor version 1.

This is not intuitive, because of the notion that increasing the major
firmware version to 2 should mean any firmware version with a major
version is less than 2 should be considered older than 2...

In order to allow both 0.2.1 and 0.1.3 to load, you would have to define
the "max" firmware version as 0.2.3.. It is possible that such
a firmware version doesn't even exist yet!

Fix this by replacing the current logic with an updated check that
behaves as follows:

First, we check the major version. If it is greater than the expected
version, then we prevent driver load. Additionally, a warning message is
logged to indicate to the system administrator that they need to update
their driver. This is now the only case where the driver will refuse to
load.

Second, if the major version is less than the expected version, we log
an information message indicating the NVM should be updated.

Third, if the major version is exact, we'll then check the minor
version. If the minor version is more than two versions less than
expected, we log an information message indicating the NVM should be
updated. If it is more than two versions greater than the expected
version, we log an information message that the driver should be
updated.

To support this, the ice_aq_ver_check function needs its signature
updated to pass the HW structure. Since we now pass this structure,
there is no need to pass the firmware API versions separately.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
Bruce Allan e4a0e1ee94 ice: update branding strings and supported device ids
Update branding strings and remove device ids 0x1594 and 0x1595.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
Bruce Allan 95a525bee0 ice: replace unnecessary memcpy with direct assignment
Direct assignment is preferred over a memcpy()

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
Jacob Keller c913b73cd0 ice: use [sr]q.count when checking if queue is initialized
When shutting down the controlqs, we check if they are initialized
before we shut them down and destroy the lock. This is important, as it
prevents attempts to access the lock of an already shutdown queue.

Unfortunately, we checked rq.head and sq.head as the value to determine
if the queue was initialized. This doesn't work, because head is not
reset when the queue is shutdown. In some flows, the adminq will have
already been shut down prior to calling ice_shutdown_all_ctrlqs. This
can result in a crash due to attempting to access the already destroyed
mutex.

Fix this by using rq.count and sq.count instead. Indeed, ice_shutdown_sq
and ice_shutdown_rq already indicate that this is the value we should be
using to determine of the queue was initialized.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-28 11:16:36 -07:00
David S. Miller 71f9b61c5b Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2018-09-25

This series contains updates to i40e and xsk.

Mariusz fixes an issue where the VF link state was not being updated
properly when the PF is down or up.  Also cleaned up the promiscuous
configuration during a VF reset.

Patryk simplifies the code a bit to use the variables for PF and HW that
are declared, rather than using the VSI pointers.  Cleaned up the
message length parameter to several virtchnl functions, since it was not
being used (or needed).

Harshitha fixes two potential race conditions when trying to change VF
settings by creating a helper function to validate that the VF is
enabled and that the VSI is set up.

Sergey corrects a double "link down" message by putting in a check for
whether or not the link is up or going down.

Björn addresses an AF_XDP zero-copy issue that buffers passed
from userspace to the kernel was leaked when the hardware descriptor
ring was torn down.  A zero-copy capable driver picks buffers off the
fill ring and places them on the hardware receive ring to be completed at
a later point when DMA is complete. Similar on the transmit side; The
driver picks buffers off the transmit ring and places them on the
transmit hardware ring.

In the typical flow, the receive buffer will be placed onto an receive
ring (completed to the user), and the transmit buffer will be placed on
the completion ring to notify the user that the transfer is done.

However, if the driver needs to tear down the hardware rings for some
reason (interface goes down, reconfiguration and such), the userspace
buffers cannot be leaked. They have to be reused or completed back to
userspace.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-25 20:25:00 -07:00
Björn Töpel 3ab52af58f i40e: disallow changing the number of descriptors when AF_XDP is on
When an AF_XDP UMEM is attached to any of the Rx rings, we disallow a
user to change the number of descriptors via e.g. "ethtool -G IFNAME".

Otherwise, the size of the stash/reuse queue can grow unbounded, which
would result in OOM or leaking userspace buffers.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 13:16:19 -07:00
Björn Töpel 411dc16ff1 i40e: clean zero-copy XDP Rx ring on shutdown/reset
Outstanding Rx descriptors are temporarily stored on a stash/reuse
queue. When/if the HW rings comes up again, entries from the stash are
used to re-populate the ring.

The latter required some restructuring of the allocation scheme for
the AF_XDP zero-copy implementation. There is now a fast, and a slow
allocation. The "fast allocation" is used from the fast-path and
obtains free buffers from the fill ring and the internal recycle
mechanism. The "slow allocation" is only used in ring setup, and
obtains buffers from the fill ring and the stash (if any).

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 13:15:16 -07:00
Björn Töpel 9dbb137045 i40e: clean zero-copy XDP Tx ring on shutdown/reset
When the zero-copy enabled XDP Tx ring is torn down, due to
configuration changes, outstanding frames on the hardware descriptor
ring are queued on the completion ring.

The completion ring has a back-pressure mechanism that will guarantee
that there is sufficient space on the ring.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 13:10:24 -07:00
Patryk Małek 679b05c053 i40e: Remove unused msglen parameter from virtchnl functions
msglen parameter seems to be unused in several virtchnl function.
This patch removes it from signatures of those functions.

Signed-off-by: Patryk Małek <patryk.malek@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 13:08:42 -07:00
Sergey Nemov fd835129ab i40e: fix double 'NIC Link is Down' messages
When isup is false meaning that interface is going to shut down
set new speed to 0 to avoid double 'NIC Link is Down' messages.

Signed-off-by: Sergey Nemov <sergey.nemov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 13:06:50 -07:00
Harshitha Ramamurthy ed277c50c0 i40e: add a helper function to validate a VF based on the vf id
When we are trying to change VF settings, it is possible for 2 race
conditions to happen. One, when the VF is created but not yet enabled.
Second, the VF is enabled but the VSI is still not created or not yet
re-created in the VF reset flow.

This patch introduces a helper function to validate that the VF is
enabled and that the VSI is set up. This patch also calls this
function from other functions which could get into these race conditions.
While we are poking around here, remove unnecessary parenthesis that
checkpatch was complaining about.

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>
2018-09-25 13:05:37 -07:00
Patryk Małek e7bac7afa6 i40e: use declared variables for pf and hw
In order to slightly simplify the code use the variables for pf and hw
that are declared in i40e_set_mac function.

Signed-off-by: Patryk Małek <patryk.malek@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 13:03:36 -07:00
Mariusz Stachura 0ce5233e6c i40e: Unset promiscuous settings on VF reset
This patch cleans up promiscuous configuration when a VF reset occurs.
Previously the promiscuous mode settings were still there after the VF
driver removal.

Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 12:49:05 -07:00
Mariusz Stachura f3fc7915a5 i40e: Fix VF's link state notification
This resolves an issue where the VF link state was not being updated
when the PF is down or up, and the VF link state would always show
that it is running.

Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-25 12:46:49 -07:00
David S. Miller a06ee256e5 Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Version bump conflict in batman-adv, take what's in net-next.

iavf conflict, adjustment of netdev_ops in net-next conflicting
with poll controller method removal in net.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-25 10:35:29 -07:00
Eric Dumazet 1aa28fb983 i40evf: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

i40evf uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-23 21:55:25 -07:00
Eric Dumazet 158a08a694 ice: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

ice uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-23 21:55:25 -07:00
Eric Dumazet 0542997ede igb: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

igb uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-23 21:55:24 -07:00
Eric Dumazet 2753166e4b ixgb: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

ixgb uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

This also removes a problematic use of disable_irq() in
a context it is forbidden, as explained in commit
af3e0fcf78 ("8139too: Use disable_irq_nosync() in
rtl8139_poll_controller()")

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-23 21:55:24 -07:00
Eric Dumazet dda9d57e2d fm10k: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
lasts for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

fm10k uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-23 21:55:24 -07:00
Eric Dumazet 6f5d941eba ixgbevf: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

ixgbevf uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-23 21:55:24 -07:00
Eric Dumazet b80e71a986 ixgbe: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

ixgbe uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

Reported-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Song Liu <songliubraving@fb.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-23 21:55:24 -07:00
YueHaibing da2cfbd3e7 e1000: remove set but not used variable 'txb2b'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/intel/e1000/e1000_main.c: In function 'e1000_watchdog':
drivers/net/ethernet/intel/e1000/e1000_main.c:2436:9: warning:
 variable 'txb2b' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-19 23:09:23 -07:00
Jesse Brandeburg 98674ebec8 intel-ethernet: use correct module license
We recently updated all our SPDX identifiers to correctly
indicate our net/ethernet/intel/* drivers were always released
and intended to be released under GPL v2, but the MODULE_LICENSE
declaration was never updated.

Fix the MODULE_LICENSE to be GPL v2, for all our drivers.

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>
2018-09-18 15:32:59 -07:00
Jesse Brandeburg 66bc8e0f59 iavf: finish renaming files to iavf
This finishes the process of renaming the files that
make sense to rename (skipping adminq related files that
talk to i40e), and fixes up the build and the #includes
so that everything builds nicely.

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>
2018-09-18 15:32:55 -07:00
Jesse Brandeburg 56184e01c0 iavf: rename most of i40e strings
This is the big rename patch, it takes most of the i40e_
and I40E_ strings and renames them to iavf_ and IAVF_.

Some of the adminq code, as well as most of the client
interface code used by RDMA is left unchanged in order
to indicate that the driver is talking to non-internal to
iavf 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>
2018-09-18 15:32:29 -07:00
Jesse Brandeburg ad64ed8bf9 iavf: tracing infrastructure rename
Rename the i40e_trace file and fix up all the callers
to the new names inside the iavf_trace.h file.

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>
2018-09-18 15:18:20 -07:00
Jesse Brandeburg f1aa1abaf5 iavf: replace i40e_debug with iavf version
Change another string (i40e_debug)

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>
2018-09-18 15:18:14 -07:00
Jesse Brandeburg f349daa588 iavf: rename i40e_hw to iavf_hw
Fix up the i40e_hw names to new name, including versions
inside other strings.

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>
2018-09-18 15:18:10 -07:00
Jesse Brandeburg 83eafc4922 iavf: rename I40E_ADMINQ_DESC
Take care of some renames containing I40E_ADMINQ_DESC.

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>
2018-09-18 15:18:02 -07:00
Jesse Brandeburg 4dbc76e014 iavf: rename device ID defines
Rename the device ID defines to have IAVF in them
and remove all the unused defines.

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>
2018-09-18 15:17:59 -07:00
Jesse Brandeburg f1cad2ce06 iavf: remove references to old names
Remove the register name references to I40E_VF* and change to
IAVF_VF. Update the descriptor names and defines to the IAVF
name.

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>
2018-09-18 15:17:56 -07:00
Jesse Brandeburg 5ec8b7d114 iavf: move i40evf files to new name
Simply move the i40evf files to the new name, updating the #includes
to track the new names, and updating the Makefile as well.

A future patch will remove the i40e references (after the code
removal patches later in this series).

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>
2018-09-18 15:17:53 -07:00
Jesse Brandeburg 0b6591e646 iavf: rename i40e_status to iavf_status
This is just a rename of an internal variable i40e_status, but
it was a pretty big change and so deserved it's own patch.

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>
2018-09-18 15:17:50 -07:00
Jesse Brandeburg 129cf89e58 iavf: rename functions and structs to new name
This basically begins the internal portion of the rename of i40evf to iavf,
by renaming many of the functions, structs, variables and defines.

Most of the changes were made mechanically, which introduces some
alignment issues.

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>
2018-09-18 15:13:49 -07:00
Jesse Brandeburg ee61022acf iavf: diet and reformat
Remove a bunch of unused code and reformat a few lines. Also
remove some now un-necessary files.

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>
2018-09-18 15:05:55 -07:00
Jesse Brandeburg 8062b2263a intel-ethernet: rename i40evf to iavf
Rename the Intel Ethernet Adaptive Virtual Function driver
(i40evf) to a new name (iavf) that is more consistent with
the ongoing maintenance of the driver as the universal VF driver
for multiple product lines.

This first patch fixes up the directory names and the .ko name,
intentionally ignoring the function names inside the driver
for now.  Basically this is the simplest patch that gets
the rename done and will be followed by other patches that
rename the internal functions.

This patch also addresses a couple of string/name issues
and updates the Copyright year.

Also, made sure to add a MODULE_ALIAS to the old name.

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>
2018-09-18 08:43:03 -07:00
Jacob Keller 6ad96bdca8 i40e(vf): remove i40e_ethtool_stats.h header file
Essentially reverts commit 8fd75c58a0 ("i40e: move ethtool
stats boiler plate code to i40e_ethtool_stats.h", 2018-08-30), and
additionally moves the similar code in i40evf into i40evf_ethtool.c.

The code was intially moved from i40e_ethtool.c into i40e_ethtool_stats.h
as a way of better logically organizing the code. This has two problems.
First, we can't have an inline function with variadic arguments on all
platforms. Second, it gave the appearance that we had plans to share
code between the i40e and i40evf drivers, due to having a near copy of
the contents in the i40evf/i40e_ethtool_stats.h file.

Patches which actually attempt to combine or share code between the i40e
and i40evf drivers have not materialized, and are likely a ways off.

Rather than fixing the one function which causes build issues, just move
this code back into the i40e_ethtool.c and i40evf_ethtool.c files. Note
that we also change these functions back from static inlines to just
statics, since they're no longer in a header file.

We can revisit this if/when work is done to actually attempt to share
code between drivers. Alternatively, this stats code could be made more
generic so that it can be shared across drivers as part of ethtool
kernel work.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-08 10:06:17 -07:00
David S. Miller fd3c040b24 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2018-09-01

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Add AF_XDP zero-copy support for i40e driver (!), from Björn and Magnus.

2) BPF verifier improvements by giving each register its own liveness
   chain which allows to simplify and getting rid of skip_callee() logic,
   from Edward.

3) Add bpf fs pretty print support for percpu arraymap, percpu hashmap
   and percpu lru hashmap. Also add generic percpu formatted print on
   bpftool so the same can be dumped there, from Yonghong.

4) Add bpf_{set,get}sockopt() helper support for TCP_SAVE_SYN and
   TCP_SAVED_SYN options to allow reflection of tos/tclass from received
   SYN packet, from Nikita.

5) Misc improvements to the BPF sockmap test cases in terms of cgroup v2
   interaction and removal of incorrect shutdown() calls, from John.

6) Few cleanups in xdp_umem_assign_dev() and xdpsock samples, from Prashant.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-31 17:41:08 -07:00
Magnus Karlsson 93ee30f3e8 xsk: i40e: get rid of useless struct xdp_umem_props
This commit gets rid of the structure xdp_umem_props. It was there to
be able to break a dependency at one point, but this is no longer
needed. The values in the struct are instead stored directly in the
xdp_umem structure. This simplifies the xsk code as well as af_xdp
zero-copy drivers and as a bonus gets rid of one internal header file.

The i40e driver is also adapted to the new interface in this commit.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-01 01:38:16 +02:00
Magnus Karlsson cf484f9f91 i40e: fix possible compiler warning in xsk TX path
With certain gcc versions, it was possible to get the warning
"'tx_desc' may be used uninitialized in this function" for the
i40e_xmit_zc. This was not possible, however this commit simplifies
the code path so that this warning is no longer emitted.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-01 01:38:16 +02:00
Patryk Małek 5907cf6c5b i40e: Prevent deleting MAC address from VF when set by PF
To prevent VF from deleting MAC address that was assigned by the
PF we need to check for that scenario when we try to delete a MAC
address from a VF.

Signed-off-by: Patryk Małek <patryk.malek@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:04 -07:00
Lihong Yang babbcc6004 i40evf: cancel workqueue sync for adminq when a VF is removed
If a VF is being removed, there is no need to continue with the
workqueue sync for the adminq task, thus cancel it. Without this call,
when VFs are created and removed right away, there might be a chance for
the driver to crash with events stuck in the adminq.

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>
2018-08-30 13:53:04 -07:00
Patryk Małek 5cba17b141 i40e: hold the rtnl lock on clearing interrupt scheme
Hold the rtnl lock when we're clearing interrupt scheme
in i40e_shutdown and in i40e_remove.

Signed-off-by: Patryk Małek <patryk.malek@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:04 -07:00
Patryk Małek 3bd77e2ae1 i40evf: Don't enable vlan stripping when rx offload is turned on
With current implementation of i40evf_set_features when user sets
any offload via ethtool we set I40EVF_FLAG_AQ_ENABLE_VLAN_STRIPPING
as a required aq which triggers driver to call
i40evf_enable_vlan_stripping. This shouldn't take place.
This patches fixes it by setting the flag only when VLAN offload
is turned on.

Signed-off-by: Patryk Małek <patryk.malek@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:04 -07:00
Jan Sokolowski e78d9a39fd i40e: Check and correct speed values for link on open
If our card has been put in an unstable state due to
other drivers interacting with it, speed settings
might be incorrect. If incorrect, forcefully reset them
on open to known default values.

Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:04 -07:00
Björn Töpel cdec2141c2 i40e: report correct statistics when XDP is enabled
When XDP is enabled, the driver will report incorrect
statistics. Received frames will reported as transmitted frames.

This commits fixes the i40e implementation of ndo_get_stats64 (struct
net_device_ops), so that iproute2 will report correct statistics
(e.g. when running "ip -stats link show dev eth0") even when XDP is
enabled.

Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Fixes: 74608d17fe ("i40e: add support for XDP_TX action")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:04 -07:00
Martyna Szapar cfe396991a i40e: static analysis report from community
Static analysis tools report a problem from original driver submission.
Removing unnecessary check in condition.

Signed-off-by: Martyna Szapar <martyna.szapar@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:04 -07:00
Lihong Yang e65aae0863 i40evf: set IFF_UNICAST_FLT flag for the VF
Set IFF_UNICAST_FLT flag for the VF to prevent it from entering
promiscuous mode when macvlan is added to the VF.

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>
2018-08-30 13:53:04 -07:00
Mitch Williams 7eb74ff891 i40e: use correct length for strncpy
Caught by GCC 8. When we provide a length for strncpy, we should not
include the terminating null. So we must tell it one less than the size
of the destination buffer.

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>
2018-08-30 13:53:04 -07:00
Paul M Stillwell Jr 3c81891091 i40evf: Validate the number of queues a PF sends
A PF can send any number of queues to the VF and the VF may not
be able to support that many. Check to see that the number of
queues is less than or equal to the max number of queues the
VF can have.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:04 -07:00
Paweł Jabłoński ae1e29f671 i40evf: Change a VF mac without reloading the VF driver
Add possibility to change a VF mac address from host side
without reloading the VF driver on the guest side. Without
this patch it is not possible to change the VF mac because
executing i40evf_virtchnl_completion function with
VIRTCHNL_OP_GET_VF_RESOURCES opcode resets the VF mac
address to previous value.

Signed-off-by: Paweł Jabłoński <pawel.jablonski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-30 13:53:03 -07:00
Jacob Keller 6dba41cd02 i40evf: update ethtool stats code and use helper functions
Fix a bug in the way we handled VF queues, by always showing stats for
the maximum number of queues, even if they aren't allocated. It is not
safe to change the number of strings reported to ethtool, as grabbing
statistics occurs over multiple ethtool ops for which the rtnl_lock()
cannot be held the entire time.

Avoid this by always reporting queue stats for the maximum number of
queues in the netdevice. Share some of the helper functionality for
adding stats with the PF code in i40e_ethtool_stats.h

This should reduce the chance of potential future bugs, and make adding
new statistics easier.

Note for the queue stats, unlike the PF driver we do not keep an array
of queue pointers, but an array of queues, so care must be taken to
avoid accessing queue memory that hasn't yet been allocated.

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>
2018-08-30 13:53:03 -07:00
Jacob Keller 8fd75c58a0 i40e: move ethtool stats boiler plate code to i40e_ethtool_stats.h
Move the boiler plate structures and helper functions we recently
added into their own header file, so that the complete collection is
located together.

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>
2018-08-30 13:53:03 -07:00
Jacob Keller 4b59938b20 i40e: convert queue stats to i40e_stats array
Use an i40e_stats array to handle the queue stats, instead of coding
similar functionality separately. Because of how the queue stats are
accessed on some kernels, we can't easily use i40e_add_ethtool_stats.

Instead, implement a separate helper, i40e_add_queue_stats, which we'll
use instead. This helper will correctly implement the
u64_stats_fetch_begin_irq logic and allow retries until successful. We
share the most complex code by re-using i40e_add_one_ethtool_stat.

This logic additionally easily supports skipping disabled rings by using
a ternary operator before calling the u64_stats_fetch_begin_irq()
function, so that we correctly zero-out the stats values without having
to perform two separate sections of code.

This significantly reduces the boiler plate code in
i40e_get_ethtool_stats, and helps keep the complex logic contained to as
few functions as possible.

With this patch, we've finally converted all the statistics to use the
helpers and the i40e_stats 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>
2018-08-30 13:53:03 -07:00
Magnus Karlsson 1328dcddbd i40e: add AF_XDP zero-copy Tx support
This patch adds zero-copy Tx support for AF_XDP sockets. It implements
the ndo_xsk_async_xmit netdev ndo and performs all the Tx logic from a
NAPI context. This means pulling egress packets from the Tx ring,
placing the frames on the NIC HW descriptor ring and completing sent
frames back to the application via the completion ring.

The regular XDP Tx ring is used for AF_XDP as well. This rationale for
this is as follows: XDP_REDIRECT guarantees mutual exclusion between
different NAPI contexts based on CPU id. In other words, a netdev can
XDP_REDIRECT to another netdev with a different NAPI context, since
the operation is bound to a specific core and each core has its own
hardware ring.

As the AF_XDP Tx action is running in the same NAPI context and using
the same ring, it will also be protected from XDP_REDIRECT actions
with the exact same mechanism.

As with AF_XDP Rx, all AF_XDP Tx specific functions are added to
i40e_xsk.c.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-08-29 12:25:53 -07:00
Magnus Karlsson a96e747273 i40e: move common Tx functions to i40e_txrx_common.h
This patch prepares for the upcoming zero-copy Tx functionality, by
moving common functions and refactor chunks of code into re-usable
functions, used both by the regular path and zero-copy path.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-08-29 12:25:53 -07:00
Björn Töpel 0a714186d3 i40e: add AF_XDP zero-copy Rx support
This patch adds zero-copy Rx support for AF_XDP sockets. Instead of
allocating buffers of type MEM_TYPE_PAGE_SHARED, the Rx frames are
allocated as MEM_TYPE_ZERO_COPY when AF_XDP is enabled for a certain
queue.

All AF_XDP specific functions are added to a new file, i40e_xsk.c.

Note that when AF_XDP zero-copy is enabled, the XDP action XDP_PASS
will allocate a new buffer and copy the zero-copy frame prior passing
it to the kernel stack.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-08-29 12:25:53 -07:00
Björn Töpel 20a739dbef i40e: move common Rx functions to i40e_txrx_common.h
This patch prepares for the upcoming zero-copy Rx functionality, by
moving/changing linkage of common functions, used both by the regular
path and zero-copy path.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-08-29 12:25:53 -07:00
Björn Töpel 6d7aad1da2 i40e: refactor Rx path for re-use
In this commit, the Rx path is refactored some, as a step torwards the
introduction AF_XDP Rx zero-copy.

The page re-use counter is moved into the i40e_reuse_rx_page, instead
of bumping the counter in many places. The Rx buffer page clearing is
moved for better readability. Lastely, functions to update statistics
and bump the XDP Tx ring are introduced.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-08-29 12:25:53 -07:00
Björn Töpel 123cecd427 i40e: added queue pair disable/enable functions
Add functions for queue pair enable/disable. Instead of resetting the
whole device, only the affected queue pair is disabled or enabled.

This plumbing is used in a later commit, when zero-copy AF_XDP support
is introduced.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-08-29 12:25:53 -07:00
David S. Miller 09990ad164 Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2018-08-28

This series contains new features and implementation updates for the
ice driver.

Anirudh reworks the current flex programming logic to add support for
a second flex descriptor profile.  Updated the transmit scheduler
code to handle changes to the spec, specifically the firmware expects
a 4KB buffer at all times so fix the default scheduler topology buffer
size.  Also the maximum children per node per layer is replaced by
maximum sibling group size.  Adds a check to ensure a reset is not in
progress before exercising a control queue operation.  Refactored the
switch rule management functions and structures to simply the logic and
to add a common function to search for a rule entry and add a new rule
entry.  Refactored the VSI allocation, deletion and rebuild flow so that
on reset we can restore all the filters that were previously added.  Did
some spring cleaning of define names and macros.

Dan updates the admin queue command for requesting resource ownership
to the latest specification by adding new enum's and change the locks.

Zhenning optimizes the driver by using the existing buffer in a
structure directly versus a local array.

Chinh implements handlers for ethtool for get and set link settings.

Sudheer implements transmit hang/timeout detection and malicious driver
detection in the driver.

Md Fahad Iqbal implements the get and set bridge mode operations.

Hieu adds the ability for firmware logging during initialization.

Brett updates the driver to only enable VSI transmit and receive pruning
when VLAN 0 is active, and when VLAN 0 is removed/not active, pruning is
disabled.

Akeem adds a flag to use for stopping the service task.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-28 15:57:25 -07:00
Shannon Nelson 5ed4e9e990 ixgbe: fix the return value for unsupported VF offload
When failing the request because we can't support that offload,
reporting EOPNOTSUPP makes much more sense than ENXIO.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:38 -07:00
Shannon Nelson 47b6f50077 ixgbe: disallow IPsec Tx offload when in SR-IOV mode
There seems to be a problem in the x540's internal switch wherein if SR-IOV
mode is enabled and an offloaded IPsec packet is sent to a local VF,
the packet is silently dropped.  This might never be a problem as it is
somewhat a corner case, but if someone happens to be using IPsec offload
from the PF to a VF that just happens to get migrated to the local box,
communication will mysteriously fail.

Not good.

A simple way to protect from this is to simply not allow any IPsec offloads
for outgoing packets when num_vfs != 0.  This doesn't help any offloads that
were created before SR-IOV was enabled, but we'll get to that later.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:33 -07:00
Shannon Nelson 7f68d43067 ixgbevf: enable VF IPsec offload operations
Add the IPsec initialization into the driver startup and
add the Rx and Tx processing hooks.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:30 -07:00
Shannon Nelson 0062e7cc95 ixgbevf: add VF IPsec offload code
Add the IPsec offload support code.  This is based off of the similar
code in ixgbe, but instead of writing the SA registers, the VF asks
the PF to setup the offload by sending the offload information to the
PF via the standard mailbox.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:26 -07:00
Shannon Nelson adef9a26d6 ixgbevf: add defines for IPsec offload request
Fix up the register definitions for using IPsec offloads and
add the new mailbox message IDs.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:19 -07:00
Shannon Nelson 7269824046 ixgbe: add VF IPsec offload request message handling
Add an add and a delete message for IPsec offload requests from
the VF.  These call into the IPsec functions that can translate
the message buffer into a useful IPsec offload.

These new messages bump the mbox API version to 1.4.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:14 -07:00
Shannon Nelson 9e4e30cc0c ixgbe: add VF IPsec offload enable flag
Add a private flag to expressly enable support for VF IPsec offload.
The VF will have to be "trusted" in order to use the hardware offload,
but because of the general concerns of managing VF access, we want to
be sure the user specifically is enabling the feature.

This is likely a candidate for becoming a netdev feature flag.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:10 -07:00
Shannon Nelson eda0333ac2 ixgbe: add VF IPsec management
Add functions to translate VF IPsec offload add and delete requests
into something the existing code can work with.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:33:03 -07:00
Shannon Nelson 99a7b0c14c ixgbe: prep IPsec constants for later use
Pull out a couple of values from a function so they can be used
later elsewhere.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:32:58 -07:00
Shannon Nelson b2875fbf6c ixgbe: reload IPsec IP table after sa tables
Restore the IPsec hardware IP table after reloading the SA tables.
This doesn't make much difference now, but will matter when we add
support for VF IPsec offloads.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:32:53 -07:00
Shannon Nelson 9e3f2f5ece ixgbe: don't clear IPsec sa counters on HW clearing
The software SA record counters should not be cleared when clearing
the hardware tables.  This causes the counters to be out of sync
after a driver reset.

Fixes: 63a67fe229 ("ixgbe: add ipsec offload add and remove SA")
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 14:32:22 -07:00
Sebastian Basierski 7fb94bd58d ixgbevf: VF2VF TCP RSS
While VF2VF with RSS communication, RSS Type were wrongly recognized
and RSS hash was not calculated as it should be. Packets was
distributed on various queues by accident.
This commit fixes that behaviour and causes proper RSS Type recognition.

Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 13:28:49 -07:00
Sebastian Basierski 59dd45d550 ixgbe: firmware recovery mode
Add check for FW NVM recovery mode during driver initialization and
service task. If in recovery mode, log message and unregister device

Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Tested-by: Don Buchholz <donald.buchholz@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 12:17:15 -07:00
Anirudh Venkataramanan 9ea47d81a7 ice: Fix and update driver version string
Remove the "ice" prefix for the driver version string and bump version
to 0.7.1-k.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 11:14:19 -07:00
Akeem G Abodunrin 8d81fa55ba ice: Introduce SERVICE_DIS flag and service routine functions
This patch introduces SERVICE_DIS flag to use for stopping service task.
This flag will be checked before scheduling new tasks. Also add new
functions ice_service_task_stop to stop service task.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 11:11:18 -07:00