This section was missed during the conversion to ReST, so convert it in the
same style as the surrounding section titles.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Link: https://lore.kernel.org/r/20210128111930.29473-1-jlu@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This converts the driver to use the new tasklet API introduced in
commit 12cc923f1c ("tasklet: Introduce new initialization API")
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Link: https://lore.kernel.org/r/20210127173256.13954-2-kernel@esmil.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Previously a temporary tasklet structure was initialized on the stack
using DECLARE_TASKLET_OLD() and then copied over and modified. Nothing
else in the kernel seems to use this pattern, so let's just call
tasklet_init() like everyone else.
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Link: https://lore.kernel.org/r/20210127173256.13954-1-kernel@esmil.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Till now the code assumed that need to copy reduced size of the
ste because the rest is the mask part which shouldn't be changed.
This is not true for all types of HW (like STEv1).
Take all 64B from the new STE and write them in the replaced STE place.
This change will make it easier to handle all STE HW types because we have
all the data that is about to be written into HW.
Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
STEv0 format and STEv1 HW format are different, each has a
different order:
STEv0: CTRL 32B, TAG 16B, BITMASK 16B
STEv1: CTRL 32B, BITMASK 16B, TAG 16B
To make this transparent to upper layers we introduce a
new ste_ctx function to format the STE prior to writing it.
Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
In these cases we need to update only the ctrl area of the STE.
So it is better to write only the control 32B and avoid copying
the unneeded reduced 48B (control 32B + tag 16B).
Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add HW specific modify header fields and logic to STEv1 file.
Since STEv0 and STEv1 modify actions values are different, each
version has its own implementation.
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add HW specific action apply logic to STEv1.
Since STEv0 and STEv1 actions format is different, each
version has its implementation.
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add HW specific setter and getters to STEv1 file.
Since STEv0 and STEv1 format are different, each version
should implemented different setters and getters.
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Some flex parser protocols are native as part of STEv1.
The check for supported protocols was modified to allow this.
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add STEv1 match logic to a new file.
This file will be used for HW specific STEv1.
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add mlx5_ifc_dr_ste_v1.h - a new header with HW specific
STE structs for version 1.
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Paul Blakey says:
====================
net/sched: cls_flower: Add support for matching on ct_state reply flag
This patchset adds software match support and offload of flower
match ct_state reply flag (+/-rpl).
The first patch adds the definition for the flag and match to flower.
Second patch gives the direction of the connection to the offloading
drivers via ct_metadata flow offload action.
The last patch does offload of this new ct_state by using the supplied
connection's direction.
====================
Link: https://lore.kernel.org/r/1611757967-18236-1-git-send-email-paulb@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Give offloading drivers the direction of the offloaded ct flow,
this will be used for matches on direction (ct_state +/-rpl).
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Bongsu Jeon says:
====================
Add nci suit and virtual nci device driver
1/2 is the Virtual NCI device driver.
2/2 is the NCI selftest suite
====================
Link: https://lore.kernel.org/r/20210127130829.4026-1-bongsu.jeon@samsung.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This is the NCI test suite. It tests the NFC/NCI module using virtual NCI
device. Test cases consist of making the virtual NCI device on/off and
controlling the device's polling for NCI1.0 and NCI2.0 version.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
NCI virtual device simulates a NCI device to the user. It can be used to
validate the NCI module and applications. This driver supports
communication between the virtual NCI device and NCI module.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It's better make 'pkt_sk()' inline here, as non-inline function
shouldn't occur in headers. Besides, this function is simple
enough to be inline.
Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Link: https://lore.kernel.org/r/20210127123302.29842-1-dong.menglong@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pointers to receive-buffer packets sent by Hyper-V are used within the
guest VM. Hyper-V can send packets with erroneous values or modify
packet fields after they are processed by the guest. To defend against
these scenarios, copy (sections of) the incoming packet after validating
their length and offset fields in netvsc_filter_receive(). In this way,
the packet can no longer be modified by the host.
Reported-by: Juan Vazquez <juvazq@microsoft.com>
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/20210126162907.21056-1-parri.andrea@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We currently just percolate the return value from analyze_instr()
to the caller of emulate_step(), especially if it is a -1.
For one particular case (opcode = 4) for instructions that aren't
currently emulated, we are returning 'should not be single-stepped'
while we should have returned 0 which says 'did not emulate, may
have to single-step'.
Fixes: 930d6288a2 ("powerpc: sstep: Add support for maddhd, maddhdu, maddld instructions")
Signed-off-by: Ananth N Mavinakayanahalli <ananth@linux.ibm.com>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/161157999039.64773.14950289716779364766.stgit@thinktux.local
We currently unconditionally try to emulate newer instructions on older
Power versions that could cause issues. Gate it.
Fixes: 350779a29f ("powerpc: Handle most loads and stores in instruction emulation code")
Signed-off-by: Ananth N Mavinakayanahalli <ananth@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/161157995977.64773.13794501093457185080.stgit@thinktux.local
STDBINUTILS is just a toggle to allow 256k page size to appear in the
possible page sizes list for the 44x.
Make 256k page size option appear all the time with an explicit
warning about binutils, and remove this unnecessary STDBINUTILS
config option.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Incorporate help text changes from David Laight]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/f9981e819009aa121a998dc483052ec76f78f991.1611128938.git.christophe.leroy@csgroup.eu
PPC47x_TLBE_SIZE isn't defined for 256k pages, leading to a build
break if 256k pages is selected.
So change the kconfig so that 256k pages can't be selected for 47x.
Fixes: e7f75ad01d ("powerpc/47x: Base ppc476 support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Expand change log to mention build break]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2fed79b1154c872194f98bac4422c23918325e61.1611128938.git.christophe.leroy@csgroup.eu
book3s/32 kvm is designed with the assumption that
an FPU is always present.
Force selection of FPU support in the kernel when
build KVM.
Fixes: 7d68c89169 ("powerpc/32s: Allow deselecting CONFIG_PPC_FPU on mpc832x")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/74461a99fa1466f361532ca794ca0753be3d9f86.1611038044.git.christophe.leroy@csgroup.eu
Queued spinlocks have shown to have good performance and fairness
properties even on smaller (2 socket) POWER systems. This selects them
automatically for 64s. For other platforms they are de-selected, the
standard spinlock is far simpler and smaller code, and single chips
with a handful of cores is unlikely to show any improvement.
CONFIG_EXPERT still allows this to be changed, e.g., to help debug
performance or correctness issues.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210118123451.1452206-1-npiggin@gmail.com
The VAS device allocates a generic interrupt to handle page faults but
the IRQ name doesn't show under /proc. This is because it's on
stack. Allocate the name.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Haren Myneni <haren@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201212142707.2102141-1-clg@kaod.org
This adds a folder per LIOBN under /sys/kernel/debug/iommu with IOMMU
table parameters.
This is enabled by CONFIG_IOMMU_DEBUGFS.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210113102014.124452-1-aik@ozlabs.ru
Only used locally. It fixes this W=1 compile error :
../arch/powerpc/platforms/pseries/eeh_pseries.c:697:5: error: no previous prototype for ‘pseries_send_allow_unfreeze’ [-Werror=missing-prototypes]
697 | int pseries_send_allow_unfreeze(struct pci_dn *pdn,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-24-clg@kaod.org
These are only used locally. It fixes these W=1 compile errors :
../arch/powerpc/platforms/pseries/setup.c:610:17: error: no previous prototype for ‘pseries_get_iov_fw_value’ [-Werror=missing-prototypes]
610 | resource_size_t pseries_get_iov_fw_value(struct pci_dev *dev, int resno,
| ^~~~~~~~~~~~~~~~~~~~~~~~
../arch/powerpc/platforms/pseries/setup.c:646:6: error: no previous prototype for ‘of_pci_set_vf_bar_size’ [-Werror=missing-prototypes]
646 | void of_pci_set_vf_bar_size(struct pci_dev *dev, const int *indexes)
| ^~~~~~~~~~~~~~~~~~~~~~
../arch/powerpc/platforms/pseries/setup.c:668:6: error: no previous prototype for ‘of_pci_parse_iov_addrs’ [-Werror=missing-prototypes]
668 | void of_pci_parse_iov_addrs(struct pci_dev *dev, const int *indexes)
| ^~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-22-clg@kaod.org
These are only used locally. It fixes these W=1 compile errors :
../arch/powerpc/kvm/powerpc.c:1521:5: error: no previous prototype for ‘kvmppc_get_vmx_dword’ [-Werror=missing-prototypes]
1521 | int kvmppc_get_vmx_dword(struct kvm_vcpu *vcpu, int index, u64 *val)
| ^~~~~~~~~~~~~~~~~~~~
../arch/powerpc/kvm/powerpc.c:1539:5: error: no previous prototype for ‘kvmppc_get_vmx_word’ [-Werror=missing-prototypes]
1539 | int kvmppc_get_vmx_word(struct kvm_vcpu *vcpu, int index, u64 *val)
| ^~~~~~~~~~~~~~~~~~~
../arch/powerpc/kvm/powerpc.c:1557:5: error: no previous prototype for ‘kvmppc_get_vmx_hword’ [-Werror=missing-prototypes]
1557 | int kvmppc_get_vmx_hword(struct kvm_vcpu *vcpu, int index, u64 *val)
| ^~~~~~~~~~~~~~~~~~~~
../arch/powerpc/kvm/powerpc.c:1575:5: error: no previous prototype for ‘kvmppc_get_vmx_byte’ [-Werror=missing-prototypes]
1575 | int kvmppc_get_vmx_byte(struct kvm_vcpu *vcpu, int index, u64 *val)
| ^~~~~~~~~~~~~~~~~~~
Fixes: acc9eb9305 ("KVM: PPC: Reimplement LOAD_VMX/STORE_VMX instruction mmio emulation with analyse_instr() input")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-19-clg@kaod.org
soft_nmi_interrupt() usage requires PPC_WATCHDOG to be configured.
Check the CONFIG definition to declare the prototype.
It fixes this W=1 compile error :
../arch/powerpc/kernel/watchdog.c:250:6: error: no previous prototype for ‘soft_nmi_interrupt’ [-Werror=missing-prototypes]
250 | void soft_nmi_interrupt(struct pt_regs *regs)
| ^~~~~~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-18-clg@kaod.org
pseries_alloc_bootmem_huge_page() is only used locally in
alloc_bootmem_huge_page() and does not need to be external.
It fixes this W=1 compile error :
../arch/powerpc/mm/hugetlbpage.c:220:12: error: no previous prototype for ‘pseries_alloc_bootmem_huge_page’ [-Werror=missing-prototypes]
220 | int __init pseries_alloc_bootmem_huge_page(struct hstate *hstate)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-16-clg@kaod.org
It fixes this W=1 compile error :
../arch/powerpc/mm/book3s64/slb.c:380:6: error: no previous prototype for ‘preload_new_slb_context’ [-Werror=missing-prototypes]
380 | void preload_new_slb_context(unsigned long start, unsigned long sp)
| ^~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-15-clg@kaod.org
It fixes this W=1 compile error :
../arch/powerpc/mm/book3s64/hash_utils.c:1867:6: error: no previous prototype for ‘hpte_insert_repeating’ [-Werror=missing-prototypes]
1867 | long hpte_insert_repeating(unsigned long hash, unsigned long vpn,
| ^~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-14-clg@kaod.org
It fixes this W=1 compile error :
../arch/powerpc/mm/book3s64/hash_utils.c:1515:5: error: no previous prototype for ‘__hash_page’ [-Werror=missing-prototypes]
1515 | int __hash_page(unsigned long trap, unsigned long ea, unsigned long dsisr,
| ^~~~~~~~~~~
../arch/powerpc/mm/book3s64/hash_utils.c:1850:6: error: no previous prototype for ‘low_hash_fault’ [-Werror=missing-prototypes]
1850 | void low_hash_fault(struct pt_regs *regs, unsigned long address, int rc)
| ^~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-13-clg@kaod.org
patch_imm64_load_insns() is only used locally in
arch_prepare_optimized_kprobe() and does not need to be external.
It fixes this W=1 compile error :
../arch/powerpc/kernel/optprobes.c:149:6: error: no previous prototype for ‘patch_imm64_load_insns’ [-Werror=missing-prototypes]
149 | void patch_imm64_load_insns(unsigned int val, kprobe_opcode_t *addr)
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-12-clg@kaod.org
Commit 650b55b707 ("powerpc: Add prefixed instructions to instruction
data type") removed the use of patch_imm32_load_insns(). Clean it up
to fix this W=1 compile error :
../arch/powerpc/kernel/optprobes.c:149:6: error: no previous prototype for ‘patch_imm32_load_insns’ [-Werror=missing-prototypes]
149 | void patch_imm32_load_insns(unsigned int val, kprobe_opcode_t *addr)
Fixes: 650b55b707 ("powerpc: Add prefixed instructions to instruction data type")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-11-clg@kaod.org
debugger_ipi_callback() is a local routine used as a NMI IPI handler and
does not need to be external.
It fixes this W=1 compile error :
../arch/powerpc/kernel/smp.c:579:6: error: no previous prototype for ‘debugger_ipi_callback’ [-Werror=missing-prototypes]
579 | void debugger_ipi_callback(struct pt_regs *regs)
| ^~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-10-clg@kaod.org
