As of a86d8becc3 ("net: dsa: Factor bottom tag receive functions"),
the rcv caller frees the original SKB in case or error.
Be symmetric with that and make the xmit caller do the same.
At the same time, fix the checkpatch NULL comparison check:
CHECK: Comparison to NULL could be written "!nskb"
#208: FILE: net/dsa/tag_trailer.c:35:
+ if (nskb == NULL)
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Many rcv functions from net/dsa/tag_*.c have a useless out_drop goto
label which simply returns NULL. Kill it in favor of the obvious.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since dev->dsa_ptr is a pointer to a dsa_switch_tree, there is no need
to have another inline helper just to check rcv.
Remove dsa_uses_tagged_protocol and check dsa_ptr && dsa_ptr->rcv
together at the same time.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
dsa_ptr is not a void pointer anymore since Nov 2011, as of cf50dcc24f
("dsa: Change dsa_uses_{dsa, trailer}_tags() into inline functions"),
but an explicit dsa_switch_tree pointer, thus remove the (void *) cast.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The DSA layer uses inline helpers and copy of the tagging functions for
faster access in hot path. Add comments to detail that.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The addition of the AVF and virtchnl code to the i40evf driver
means we should update the i40evf.txt file with the most up to date
information.
It seems this file hasn't been updated in a while, so the
changes cover a little more than just AVF, but it's all only
in the i40evf.txt.
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>
Add device ID define and mac_type assignment needed for
Adaptive Virtual Function (VF Base Mode Support).
Also, update version to v3.0.0 in order to indicate
clearly that this is the first driver supporting the AVF
device ID.
Signed-off-by: Preethi Banala <preethi.banala@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This uses preprocessor tricks to make sure that a divide by zero
occurs if a struct changes size outside the expected number of
bytes.
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This removes holes and makes structure sizes consistent across
32 and 64 bit builds.
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This moves a function that is needed for the virtchnl interface
from the i40e PF driver over to the virtchnl.h file.
It was manually verified that the function in question is unchanged
except for the function name and function header, which explains
the slight difference in the number of lines removed/added.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch implements the complete version of the virtchnl.h file
with final renames, and fixes the related code in i40e and i40evf.
It also expands comments, and adds details on the usage of
certain fields.
In addition, due to the changes a couple of casts are needed
to prevent errors found by sparse after renaming some fields.
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>
Commit 9fdca4da4d (IB/SA: Split struct sa_path_rec based on IB and
ROCE specific fields) moved the service_id to be specific attribute
for IB and OPA SA Path Record, and thus wasn't assigned for RoCE.
This caused to the following kernel panic in the CMA request handler flow:
[ 27.074594] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[ 27.074731] IP: __radix_tree_lookup+0x1d/0xe0
...
[ 27.075356] Workqueue: ib_cm cm_work_handler [ib_cm]
[ 27.075401] task: ffff88022e3b8000 task.stack: ffffc90001298000
[ 27.075449] RIP: 0010:__radix_tree_lookup+0x1d/0xe0
...
[ 27.075979] Call Trace:
[ 27.076015] radix_tree_lookup+0xd/0x10
[ 27.076055] cma_ps_find+0x59/0x70 [rdma_cm]
[ 27.076097] cma_id_from_event+0xd2/0x470 [rdma_cm]
[ 27.076144] ? ib_init_ah_from_path+0x39a/0x590 [ib_core]
[ 27.076193] cma_req_handler+0x25/0x480 [rdma_cm]
[ 27.076237] cm_process_work+0x25/0x120 [ib_cm]
[ 27.076280] ? cm_get_bth_pkey.isra.62+0x3c/0xa0 [ib_cm]
[ 27.076350] cm_req_handler+0xb03/0xd40 [ib_cm]
[ 27.076430] ? sched_clock_cpu+0x11/0xb0
[ 27.076478] cm_work_handler+0x194/0x1588 [ib_cm]
[ 27.076525] process_one_work+0x160/0x410
[ 27.076565] worker_thread+0x137/0x4a0
[ 27.076614] kthread+0x112/0x150
[ 27.076684] ? max_active_store+0x60/0x60
[ 27.077642] ? kthread_park+0x90/0x90
[ 27.078530] ret_from_fork+0x2c/0x40
This patch moves it back to the common SA Path Record structure
and removes the redundant setter and getter.
Tested on Connect-IB and Connect-X4 in Infiniband and RoCE respectively.
Fixes: 9fdca4da4d (IB/SA: Split struct sa_path_rec based on IB ands
ROCE specific fields)
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This change will optimize kernel memory deregistration operations.
__ib_umem_release() used to call set_page_dirty_lock() against every
writable page in its memory region. Its purpose is to keep data
synced between CPU and DMA device when swapping happens after mem
deregistration ops. Now we choose not to set page dirty bit if it's
already set by kernel prior to calling __ib_umem_release(). This
reduces memory deregistration time by half or even more when we ran
application simulation test program.
Signed-off-by: Qing Huang <qing.huang@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Commit 5752075144 ("IB/SA: Add OPA path record type") introduced
new local function __ib_copy_path_rec_to_user, but didn't limit its
scope. This produces the following sparse warning:
drivers/infiniband/core/uverbs_marshall.c:99:6: warning:
symbol '__ib_copy_path_rec_to_user' was not declared. Should it be
static?
In addition, it used sizeof ... notations instead of sizeof(...), which
is correct in C, but a little bit misleading. Let's change it too.
Fixes: 5752075144 ("IB/SA: Add OPA path record type")
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
RDMA netlink is part of ib_core, hence ibnl_chk_listeners(),
ibnl_init() and ibnl_cleanup() don't need to be published
in public header file.
Let's remove EXPORT_SYMBOL from ibnl_chk_listeners() and move all these
functions to private header file.
CC: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
If srp_init_qp() fails at srp_create_ch_ib() then ch->send_cq
may be NULL.
Calling directly to ib_destroy_qp() is sufficient because
no work requests were posted on the created qp.
Fixes: 9294000d6d ("IB/srp: Drain the send queue before destroying a QP")
Cc: <stable@vger.kernel.org>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Bart van Assche <bart.vanassche@sandisk.com>--
Signed-off-by: Doug Ledford <dledford@redhat.com>
ipoib_dev_uninit_default() call is used in ipoib_main.c file only
and it generates the following warning from smatch tool:
drivers/infiniband/ulp/ipoib/ipoib_main.c:1593:6: warning:
symbol 'ipoib_dev_uninit_default' was not declared. Should it
be static?
so let's declare that function as static.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Cache the needed umr_fence and set the wqe ctrl segmennt
accordingly.
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Acked-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch fixes up a bunch of whitespace issues introduced
by the previous automated change of name from i40e to virtchnl.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change updates the arguments passed to the validate function
and fixes the caller, as well as uses the new return values added to
virtchnl.h
One other minor tweak, remove a duplicate set to zero of valid_len.
This is in preparation for moving the function to virtchnl.h.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
As part of the conversion, change the arguments
to VF_IS_V1[01] macros and move them to virtchnl.h
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>
Before moving this function over to virtchnl.h, move
some driver specific checks that had snuck into a fairly
generic function, back into the caller of the function.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This morphs all the i40e and i40evf references to/in virtchnl.h
to be generic, using only automated methods. Updates all the
callers to use the new names. A followup patch provides separate
clean ups for messy line conversions from these "automatic"
changes, to make them more reviewable.
Was executed with the following sed script:
sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_client.c
sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_prototype.h
sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40e_common.c
sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40e_prototype.h
sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf.h
sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_client.c
sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_main.c
sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
sed -i -f transform_script include/linux/avf/virtchnl.h
transform_script:
----8<----
s/I40E_VIRTCHNL_SUPPORTED_QTYPES/SAVE_ME_SUPPORTED_QTYPES/g
s/I40E_VIRTCHNL_VF_CAP/SAVE_ME_VF_CAP/g
s/I40E_VIRTCHNL_/VIRTCHNL_/g
s/i40e_virtchnl_/virtchnl_/g
s/i40e_vfr_/virtchnl_vfr_/g
s/I40E_VFR_/VIRTCHNL_VFR_/g
s/VIRTCHNL_OP_ADD_ETHER_ADDRESS/VIRTCHNL_OP_ADD_ETH_ADDR/g
s/VIRTCHNL_OP_DEL_ETHER_ADDRESS/VIRTCHNL_OP_DEL_ETH_ADDR/g
s/VIRTCHNL_OP_FCOE/VIRTCHNL_OP_RSVD/g
s/SAVE_ME_SUPPORTED_QTYPES/I40E_VIRTCHNL_SUPPORTED_QTYPES/g
s/SAVE_ME_VF_CAP/I40E_VIRTCHNL_VF_CAP/g
----8<----
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch changes the i40e driver to start using the new virtchnl
interface header file, and removes an already existing duplicate of the
i40e_virtchnl.h file contained in the i40e directory.
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>
HW can implement UMR wqe re-transmission in various ways.
Thus, add HCA cap to distinguish the needed fence for UMR to make
sure that the wqe wouldn't fail on mkey checks.
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Acked-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The cited patch added a type field to structures ib_ah and rdma_ah_attr.
Function mlx4_ib_query_ah() builds an rdma_ah_attr structure from the
data in an mlx4_ib_ah structure (which contains both an ib_ah structure
and an address vector).
For mlx4_ib_query_ah() to work properly, the type field in the contained
ib_ah structure must be set correctly.
In the outgoing MAD tunneling flow, procedure mlx4_ib_multiplex_mad()
paravirtualizes a MAD received from a slave and sends the processed
mad out over the wire. During this processing, it populates an
mlx4_ib_ah structure and calls mlx4_ib_query_ah().
The cited commit overlooked setting the type field in the contained
ib_ah structure before invoking mlx4_ib_query_ah(). As a result, the
type field remained uninitialized, and the rdma_ah_attr structure was
incorrectly built. This resulted in improperly built MADs being sent out
over the wire.
This patch properly initializes the type field in the contained ib_ah
structure before calling mlx4_ib_query_ah(). The rdma_ah_attr structure
is then generated correctly.
Fixes: 44c58487d5 ("IB/core: Define 'ib' and 'roce' rdma_ah_attr types")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This moves a header for i40evf to include/linux/avf/virtchnl.h.
The directory name AVF is an acronym for the Intel(R) Adaptive
Virtual Function.
This first step creates the new file, which is a rename of
drivers/net/ethernet/intel/i40evf/i40e_virtchnl.h to
include/linux/avf/virtchnl.h, and should show up in git
as a rename when using git log --follow.
To keep things building after the move, the changes to the i40evf
driver are made to point to the new include file location.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The handling of IB_RDMA_WRITE_ONLY_WITH_IMMEDIATE will leak a memory
reference when a buffer cannot be allocated for returning the immediate
data.
The issue is that the rkey validation has already occurred and the RNR
nak fails to release the reference that was fruitlessly gotten. The
the peer will send the identical single packet request when its RNR
timer pops.
The fix is to release the held reference prior to the rnr nak exit.
This is the only sequence the requires both rkey validation and the
buffer allocation on the same packet.
Cc: Stable <stable@vger.kernel.org> # 4.7+
Tested-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Keep VL15 credits at 0 during LNI, before link-up. Store
VL15 credits value during verify cap interrupt and set
in after link-up. This addresses an issue where VL15 MAD
packets could be sent by one side of the link before
the other side is ready to receive them.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jakub Byczkowski <jakub.byczkowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The Omni-Path adapter driver fails to load on the ppc64le platform
due to invalid PCI setup.
This patch makes the PCI configuration more robust and will
fix 64 bit addressing for ppc64le.
Signed-off-by: Steven L Roberts <robers97@gmail.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This fixes a kernel panic when loading the hfi driver as a dynamic module.
Signed-off-by: Steven L Roberts <robers97@gmail.com>
Reviewed-by: Leon Romanovsky <leon@kernel.org>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Take care of ipv6 checks while computing header length for deducing mtu
size of ipv6 servers. Due to the incorrect header length computation for
ipv6 servers, wrong mss is reported to the peer (client).
Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The patch 761e19a504 (RDMA/iw_cxgb4: Handle return value of
c4iw_ofld_send() in abort_arp_failure()) from May 6, 2016
leads to the following static checker warning:
drivers/infiniband/hw/cxgb4/cm.c:575 abort_arp_failure()
warn: passing freed memory 'skb'
Also fixes skb leak when l2t resolution fails
Fixes: 761e19a504 (RDMA/iw_cxgb4: Handle return value of
c4iw_ofld_send() in abort_arp_failure())
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Explicitly ACK the MPA Reply frame so the peer
does not retransmit the frame.
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Don't set control flag for 0-length FULPDU (Send) RTR indication
in the enhanced MPA Request/Reply frames, because it isn't supported.
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Some error paths in i40iw_initialize_dev are doing
additional and unnecessary work before exiting.
Correctly free resources allocated prior to error
and return with correct status code.
Signed-off-by: Mustafa Ismail <mustafa.ismail@intelcom>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Explicitly ACK the MPA Reject frame so the peer does
not retransmit the frame.
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This drops the i40e_type.h include in anticipation of the next
patch which moves this file to a location where type.h doesn't
exist, and all the places this file is included already include
i40e_type.h before this 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>
Don't set control flag for 0-length FULPDU (Send)
RTR indication in the enhanced MPA Request/Reply
frames, because it isn't supported.
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In the commit enabling per-CPU station statistics, I inadvertedly
copy-pasted some code to update rx_packets and forgot to change it
to update rx_dropped_misc. Fix that.
This addresses https://bugzilla.kernel.org/show_bug.cgi?id=195953.
Fixes: c9c5962b56 ("mac80211: enable collecting station statistics per-CPU")
Reported-by: Petru-Florin Mihancea <petrum@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When BRIDGE is a loadable module, MLXSW_SPECTRUM mustn't be built-in:
drivers/built-in.o: In function `mlxsw_sp_bridge_device_create':
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:145: undefined reference to `br_vlan_enabled'
drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:158: undefined reference to `br_multicast_enabled'
drivers/built-in.o: In function `mlxsw_sp_dev_rif_type':
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:2972: undefined reference to `br_vlan_enabled'
drivers/built-in.o: In function `mlxsw_sp_inetaddr_vlan_event':
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:3310: undefined reference to `br_vlan_enabled'
Add Kconfig dependency to enforce usable configurations.
Fixes: c57529e1d5 ("mlxsw: spectrum: Replace vPorts with Port-VLAN")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Tested-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Leonard Crestez says:
====================
ARM: imx6ul-14x14-evk: Fix suspend over nfs by phy
Right now attempting doing suspend/resume while root is mounted over NFS
hangs on imx6ul-14x14-evk. This is happening because ksz8081 phy fixups are
lost on resume.
Fix this by using equivalent devicetree properties instead of a phy fixup
and handling those properties on resume in the micrel driver.
In theory it might now be possible to remove the phy fixup from mach-imx6ul
entirely but it is possible that this would break other imx6ul boards which
use the same phy. The solution would be to patch their dts but it's not
clear how to identify affected boards.
This code is shared with imx6ull-14x14-evk but 6ull suspend needs an
unrelated patch: https://lkml.org/lkml/2017/5/30/584
This is something of a corner case so there is no CC: stable.
Changes since v1: https://lkml.org/lkml/2017/5/30/672
* Split a kszphy_config_reset function for stuff shared between
config_init and resume. Calling config_init directly could be an option but
on some HW variants it does extra stuff like parsing devicetree options.
That would not be appropriate for resume code.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
These bits seem to be lost after a suspend/resume cycle so just set them
again. Do this by splitting the handling of these bits into a function
that is also called on resume.
This patch fixes ethernet suspend/resume on imx6ul-14x14-evk boards.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vivien Didelot