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FW reconfiguration timeouts are a common indicator of FW trouble.
To make debugging easier print requested update and control word
when reconfiguration fails.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When troubleshooting incorrect FW capabilities it's useful to know
where the faulty TLV is located. Add offset to all errors messages.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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FW/HW can generally support the standard networking offloads
on representors without any trouble. Add the ability for FW
to advertise which features should be available on representors.
Because representors are muxed on top of the vNIC we need to listen
on feature changes of their lower devices, and update their features
appropriately.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Up until now we never needed to keep a networking locks around
representors accesses, we only accessed them when device was
reconfigured (under nfp pf->lock) or on fast path (under RCU).
Now we want to be able to iterate over all representors during
notifications, so make sure representor assignment is done
under RTNL lock.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Our representors are software devices built on top of the PF
vNIC, the queuing should only happen at the vNIC netdevice.
Allow representors to run qdisc-less.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Our representors are software devices built on top of the PF
vNIC, the only state they have are per-cpu stats, so make
the TX run locklessly.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for TSO over representors make sure the port id
prepend will always fit in the frame. The current max header
length is 255, which is ample, so assume worst case scenario
of 8 byte prepend and save ourselves the conditionals.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The TSO-related offsets in the descriptor should not include
the length of the prepended metadata. Adjust them. Note that
this could not have caused issues in the past as we don't
support TSO with metadata prepend as of this patch.
Signed-off-by: Michael Rapson <michael.rapson@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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nd_q is only used at the very end of nfp_net_tx(), there is no need
to initialize it early.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move temporary variables in scope of the loop in nfp_net_tx_complete(),
and add a temp for txbuf software structure. This saves us 0.2% of CPU.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Chained descriptors for fragments need to duplicate all the descriptor
fields of the skb head, so we copy the descriptor and then modify the
relevant fields. This is wasteful, because the top half of the descriptor
will get overwritten entirely while the bottom half is not modified at all.
Copy only the bottom half. This saves us 0.3% of CPU in a GSO test.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Total number of VFs supported by PF is used to determine the last
byte of VF's mac address. Number of VFs supported is not always
16, use the variable nvfs to get the number of VFs supported
rather than hard coding it to 16.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
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allocation failure.
skb_linearization can fail due to memory allocation failure.
In such a case, the driver will drop the packet. In such a case
The driver used to print an error message.
This patch replaces this error message by a dedicated statistic.
Signed-off-by: Michael Shteinbok <michael.shteinbok@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add comments in the switch statement for XDP action to indicate
fallthrough is intended.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since the wol state forces to be initialized after reset, the state should
be preserved in suspend/resume sequence.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If wol state of phy hardware is enabled after reset, phy_ethtool_get_wol()
returns that wol.wolopts is true.
However, since net_device.wol_enabled is zero and this doesn't apply wol
state until calling ethtool_set_wol(), so mdio_bus_phy_may_suspend()
returns true, that is, it's in a state where phy can suspend even though
wol state is enabled.
In this inconsistency, phy_suspend() returns -EBUSY, and at last,
suspend sequence fails with the following message:
dpm_run_callback(): mdio_bus_phy_suspend+0x0/0x58 returns -16
PM: Device 65000000.ethernet-ffffffff:01 failed to suspend: error -16
PM: Some devices failed to suspend, or early wake event detected
In order to fix the above issue, this patch forces to set initial wol state
to disabled as default.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch introduces suspend and resume functions to ave driver.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
This is a pull request for net-next/master consisting of 18 patches.
The first patch is by Colin Ian King and fixes the spelling in the ucan
driver.
The next three patches target the xilinx driver. YueHaibing's patch
fixes the return type of ndo_start_xmit function. Two patches by
Shubhrajyoti Datta add support for the CAN FD 2.0 controllers.
Flavio Suligoi's patch for the sja1000 driver add support for the ASEM
CAN raw hardware.
Wolfram Sang's and Kuninori Morimoto's patches switch the rcar driver to
use SPDX license identifiers.
The remaining 111 patches improve the flexcan driver. Pankaj Bansal's
patch enables the driver in Kconfig on all architectures with IOMEM
support. The next four patches by me fix indention, add missing
parentheses and comments. Aisheng Dong's patches add self wake support
and document it in the DT bindings. The remaining patches by Pankaj
Bansal first fix the loopback support and prepare the driver for the
CAN-FD support needed for the LX2160A SoC. The actual CAN-FD support
will be added in a later patch series.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Trivial conflict in net/core/filter.c, a locally computed
'sdif' is now an argument to the function.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
1) ARM64 JIT fixes for subprog handling from Daniel Borkmann.
2) Various sparc64 JIT bug fixes (fused branch convergance, frame
pointer usage detection logic, PSEODU call argument handling).
3) Fix to use BH locking in nf_conncount, from Taehee Yoo.
4) Fix race of TX skb freeing in ipheth driver, from Bernd Eckstein.
5) Handle return value of TX NAPI completion properly in lan743x
driver, from Bryan Whitehead.
6) MAC filter deletion in i40e driver clears wrong state bit, from
Lihong Yang.
7) Fix use after free in rionet driver, from Pan Bian.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (53 commits)
s390/qeth: fix length check in SNMP processing
net: hisilicon: remove unexpected free_netdev
rapidio/rionet: do not free skb before reading its length
i40e: fix kerneldoc for xsk methods
ixgbe: recognize 1000BaseLX SFP modules as 1Gbps
i40e: Fix deletion of MAC filters
igb: fix uninitialized variables
netfilter: nf_tables: deactivate expressions in rule replecement routine
lan743x: Enable driver to work with LAN7431
tipc: fix lockdep warning during node delete
lan743x: fix return value for lan743x_tx_napi_poll
net: via: via-velocity: fix spelling mistake "alignement" -> "alignment"
qed: fix spelling mistake "attnetion" -> "attention"
net: thunderx: fix NULL pointer dereference in nic_remove
sctp: increase sk_wmem_alloc when head->truesize is increased
firestream: fix spelling mistake: "Inititing" -> "Initializing"
net: phy: add workaround for issue where PHY driver doesn't bind to the device
usbnet: ipheth: fix potential recvmsg bug and recvmsg bug 2
sparc: Adjust bpf JIT prologue for PSEUDO calls.
bpf, doc: add entries of who looks over which jits
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Fixes 2018-11-28
This series contains fixes to igb, ixgbe and i40e.
Yunjian Wang from Huawei resolves a variable that could potentially be
NULL before it is used.
Lihong fixes an i40e issue which goes back to 4.17 kernels, where
deleting any of the MAC filters was causing the incorrect syncing for
the PF.
Josh Elsasser caught that there were missing enum values in the link
capabilities for x550 devices, which was preventing link for 1000BaseLX
SFP modules.
Jan fixes the function header comments for XSK methods.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The response for a SNMP request can consist of multiple parts, which
the cmd callback stages into a kernel buffer until all parts have been
received. If the callback detects that the staging buffer provides
insufficient space, it bails out with error.
This processing is buggy for the first part of the response - while it
initially checks for a length of 'data_len', it later copies an
additional amount of 'offsetof(struct qeth_snmp_cmd, data)' bytes.
Fix the calculation of 'data_len' for the first part of the response.
This also nicely cleans up the memcpy code.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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qos_id'
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c:26:6:
warning: variable 'ip_family' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c:27:6:
warning: variable 'fc_seq' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c:28:6:
warning: variable 'qos_id' set but not used [-Wunused-but-set-variable]
It never used since introduction in commit
ceed73a2cf4a ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tx_desc_info'
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:4011:5:
warning: variable 'max_hw_rings' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:4013:6:
warning: variable 'cur_rings' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:2996:25:
warning: variable 'tx_desc_info' set but not used [-Wunused-but-set-variable]
'cur_rings, max_hw_rings' never used since introduction in commit
34e8c406fda5 ("qlcnic: refactor Tx/SDS ring calculation and validation in driver.")
'tx_desc_info' never used since commit
95b3890ae39f ("qlcnic: Enhance Tx timeout debugging.")
Also 'queue_type' only can be QLCNIC_RX_QUEUE/QLCNIC_TX_QUEUE,
so make a trival cleanup on if statement.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Shahed Shaikh <shahed.shaikh@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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'txdl_priv'
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/neterion/vxge/vxge-traffic.c:1698:35:
warning: variable 'txdl_priv' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/neterion/vxge/vxge-traffic.c:1699:6:
warning: variable 'max_frags' set but not used [-Wunused-but-set-variable]
It never used since introduction in
commit 113241321dcd ("Neterion: New driver: Traffic & alarm handler")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add counters for xdp processed frames to the channel statistics.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove unused counter. Reorder fields in channel stats structure
to match the ethtool strings order and make it easier to print them
with ethtool -S.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Send frames back on the same port for XDP_TX action.
Since the frame buffers have been allocated by us, we can recycle
them directly into the Rx buffer pool instead of requesting a
confirmation frame upon transmission complete.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to support enqueueing Rx FDs back to hardware, we need to
DMA map Rx buffers as bidirectional.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of freeing the RX buffers, release them back into the pool.
We wait for the maximum number of buffers supported by a single
release command to accumulate before issuing the command.
Also, don't unmap the Rx buffers at the beginning of the Rx routine
anymore, since that would require remapping them before release.
Instead, just do a DMA sync at first and only unmap if the frame is
meant for the stack.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We'll use function free_bufs() on the XDP path as well, so move
it higher in order to avoid a forward declaration.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reserve XDP_PACKET_HEADROOM bytes in Rx buffers to allow XDP
programs to increase frame header size.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We keep one XDP program reference per channel. The only actions
supported for now are XDP_DROP and XDP_PASS.
Until now we didn't enforce a maximum size for Rx frames based
on MTU value. Change that, since for XDP mode we must ensure no
scatter-gather frames can be received.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The net device ndev is freed via free_netdev when failing to register
the device. The control flow then jumps to the error handling code
block. ndev is used and freed again. Resulting in a use-after-free bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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skb is freed via dev_kfree_skb_any, however, skb->len is read then. This
may result in a use-after-free bug.
Fixes: e6161d64263 ("rapidio/rionet: rework driver initialization and removal")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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One method, xsk_umem_setup, had an incorrect kernel doc
description, which has been corrected.
Also fixes small typos found in the comments.
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>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few driver specific fixes here, nothing big or that stands out for
anyone other than the driver users.
The omap2-mcspi fix is for issues that started showing up with a
change in defconfig in this release to make cpuidle get turned on by
default"
* tag 'spi-fix-v4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: omap2-mcspi: Add missing suspend and resume calls
spi: mediatek: use correct mata->xfer_len when in fifo transfer
spi: uniphier: fix incorrect property items
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Add the two 1000BaseLX enum values to the X550's check for 1Gbps modules,
allowing the core driver code to establish a link over this SFP type.
This is done by the out-of-tree driver but the fix wasn't in mainline.
Fixes: e23f33367882 ("ixgbe: Fix 1G and 10G link stability for X550EM_x SFP+”)
Fixes: 6a14ee0cfb19 ("ixgbe: Add X550 support function pointers")
Signed-off-by: Josh Elsasser <jelsasser@appneta.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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In __i40e_del_filter function, the flag __I40E_MACVLAN_SYNC_PENDING for
the PF state is wrongly set for the VSI. Deleting any of the MAC filters
has caused the incorrect syncing for the PF. Fix it by setting this state
flag to the intended PF.
CC: stable <stable@vger.kernel.org>
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>
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This patch fixes the variable 'phy_word' may be used uninitialized.
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The message buffer RAM area is not a contiguous 1KB area but 2 partitions
of 512 bytes each. Till now, we used Message buffers with payload size 8
bytes, which translates to 32 MBs per partition and no spare space is left
in any partition.
However, in upcoming SOC LX2160A the message buffers can have payload size
64 bytes. This results in less than 32 MBs per partition and some empty
area is left at the end of each partition.This empty area should not be
accessed.
Therefore, split the Message Buffer RAM area into two partitions.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Till now the flexcan module supported 8 byte payload size as per CAN 2.0
specifications. But now upcoming flexcan module in NXP LX2160A SOC
supports CAN FD protocol too. The Message buffers need to be configured
to have payload size 64 bytes.
Therefore, added provision in the driver for payload size to be 64 bytes.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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rx offload depends on number of message buffers, which in turn depends
on messgae buffer size. with the upcoming LX2160A SOC the message buffer
size can be configured to 72 bytes if it were to be used in CAN FD mode.
The current mode in which the flexcan is being operated is known at the
time of flexcan_open() but not at the time of flexcan_probe().
Therefore, move the rx_offload_add() from flexcan_probe() to
flexcan_open(). correspondingly, move rx_offload_delete() from
flexcan_remove() to flexcan_close().
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Self reception disable bit needs to be cleared for loopback mode to work
in flexcan.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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If wakeup is enabled, enter stop mode, else enter disabled mode. Self wake
can only work on stop mode.
Starting from IMX6, the flexcan stop mode control bits is SoC specific,
move it out of IP driver and parse it from devicetree.
Signed-off-by: Aisheng Dong <aisheng.dong@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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With the conversion of the flexcan driver to support both timestamp and
FIFO mode the setup of the MCR register ("enable fifo") has been moved.
This patch moves the comment too, in order to match the code again.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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This patch fixes the following checkpatch warning:
| Macro argument 'x' may be better as '(x)' to avoid precedence issues
Fixes: cbffaf7aa09e ("can: flexcan: Always use last mailbox for TX")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The patch fixes the indention by replacing space by tabs, as noted by
checkpatch:
| ERROR: code indent should use tabs where possible
| #980: FILE: drivers/net/can/flexcan.c:980:
Fixes: da49a8075c00 ("can: flexcan: implement error passive state quirk")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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This patch fixes the indentio nin flexcan_start_xmit() by alligning the
code to the opening parenthesis.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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