5bd75403be
* remotes/origin/tmp-f686d9f:
ANDROID: update abi_gki_aarch64.xml for 5.2-rc6
Linux 5.2-rc6
Revert "iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock"
Bluetooth: Fix regression with minimum encryption key size alignment
tcp: refine memory limit test in tcp_fragment()
x86/vdso: Prevent segfaults due to hoisted vclock reads
SUNRPC: Fix a credential refcount leak
Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"
net :sunrpc :clnt :Fix xps refcount imbalance on the error path
NFS4: Only set creation opendata if O_CREAT
ANDROID: gki_defconfig: workaround to enable configs
ANDROID: gki_defconfig: more configs for partners
ARM: 8867/1: vdso: pass --be8 to linker if necessary
KVM: nVMX: reorganize initial steps of vmx_set_nested_state
KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries
habanalabs: use u64_to_user_ptr() for reading user pointers
nfsd: replace Jeff by Chuck as nfsd co-maintainer
inet: clear num_timeout reqsk_alloc()
PCI/P2PDMA: Ignore root complex whitelist when an IOMMU is present
net: mvpp2: debugfs: Add pmap to fs dump
ipv6: Default fib6_type to RTN_UNICAST when not set
net: hns3: Fix inconsistent indenting
net/af_iucv: always register net_device notifier
net/af_iucv: build proper skbs for HiperTransport
net/af_iucv: remove GFP_DMA restriction for HiperTransport
doc: fix documentation about UIO_MEM_LOGICAL using
MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk
docs: fb: Add TER16x32 to the available font names
MAINTAINERS: fpga: hand off maintainership to Moritz
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
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KVM: arm/arm64: Fix emulated ptimer irq injection
net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge()
tests: kvm: Check for a kernel warning
kvm: tests: Sort tests in the Makefile alphabetically
KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT
KVM: x86: Modify struct kvm_nested_state to have explicit fields for data
fanotify: update connector fsid cache on add mark
quota: fix a problem about transfer quota
drm/i915: Don't clobber M/N values during fastset check
powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac
ovl: make i_ino consistent with st_ino in more cases
scsi: qla2xxx: Fix hardlockup in abort command during driver remove
scsi: ufs: Avoid runtime suspend possibly being blocked forever
scsi: qedi: update driver version to 8.37.0.20
scsi: qedi: Check targetname while finding boot target information
hvsock: fix epollout hang from race condition
net/udp_gso: Allow TX timestamp with UDP GSO
net: netem: fix use after free and double free with packet corruption
net: netem: fix backlog accounting for corrupted GSO frames
net: lio_core: fix potential sign-extension overflow on large shift
tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb
ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
ip_tunnel: allow not to count pkts on tstats by setting skb's dev to NULL
apparmor: reset pos on failure to unpack for various functions
apparmor: enforce nullbyte at end of tag string
apparmor: fix PROFILE_MEDIATES for untrusted input
RDMA/efa: Handle mmap insertions overflow
tun: wake up waitqueues after IFF_UP is set
drm: return -EFAULT if copy_to_user() fails
net: remove duplicate fetch in sock_getsockopt
tipc: fix issues with early FAILOVER_MSG from peer
bnx2x: Check if transceiver implements DDM before access
xhci: detect USB 3.2 capable host controllers correctly
usb: xhci: Don't try to recover an endpoint if port is in error state.
KVM: fix typo in documentation
drm/panfrost: Make sure a BO is only unmapped when appropriate
md: fix for divide error in status_resync
soc: ixp4xx: npe: Fix an IS_ERR() vs NULL check in probe
arm64/mm: don't initialize pgd_cache twice
MAINTAINERS: Update my email address
arm64/sve: <uapi/asm/ptrace.h> should not depend on <uapi/linux/prctl.h>
ovl: fix typo in MODULE_PARM_DESC
ovl: fix bogus -Wmaybe-unitialized warning
ovl: don't fail with disconnected lower NFS
mmc: core: Prevent processing SDIO IRQs when the card is suspended
mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning
brcmfmac: sdio: Don't tune while the card is off
mmc: core: Add sdio_retune_hold_now() and sdio_retune_release()
brcmfmac: sdio: Disable auto-tuning around commands expected to fail
mmc: core: API to temporarily disable retuning for SDIO CRC errors
Revert "brcmfmac: disable command decode in sdio_aos"
ARM: ixp4xx: include irqs.h where needed
ARM: ixp4xx: mark ixp4xx_irq_setup as __init
ARM: ixp4xx: don't select SERIAL_OF_PLATFORM
firmware: trusted_foundations: add ARMv7 dependency
usb: dwc2: Use generic PHY width in params setup
RDMA/efa: Fix success return value in case of error
IB/hfi1: Handle port down properly in pio
IB/hfi1: Handle wakeup of orphaned QPs for pio
IB/hfi1: Wakeup QPs orphaned on wait list after flush
IB/hfi1: Use aborts to trigger RC throttling
IB/hfi1: Create inline to get extended headers
IB/hfi1: Silence txreq allocation warnings
IB/hfi1: Avoid hardlockup with flushlist_lock
KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode
KVM: PPC: Book3S HV: Fix r3 corruption in h_set_dabr()
fs/namespace: fix unprivileged mount propagation
vfs: fsmount: add missing mntget()
cifs: fix GlobalMid_Lock bug in cifs_reconnect
SMB3: retry on STATUS_INSUFFICIENT_RESOURCES instead of failing write
staging: erofs: add requirements field in superblock
arm64: ssbd: explicitly depend on <linux/prctl.h>
block: fix page leak when merging to same page
block: return from __bio_try_merge_page if merging occured in the same page
Btrfs: fix failure to persist compression property xattr deletion on fsync
riscv: remove unused barrier defines
usb: chipidea: udc: workaround for endpoint conflict issue
MAINTAINERS: Change QCOM repo location
mmc: mediatek: fix SDIO IRQ detection issue
mmc: mediatek: fix SDIO IRQ interrupt handle flow
mmc: core: complete HS400 before checking status
riscv: mm: synchronize MMU after pte change
MAINTAINERS: Update my email address to use @kernel.org
ANDROID: update abi_gki_aarch64.xml for 5.2-rc5
riscv: dts: add initial board data for the SiFive HiFive Unleashed
riscv: dts: add initial support for the SiFive FU540-C000 SoC
dt-bindings: riscv: convert cpu binding to json-schema
dt-bindings: riscv: sifive: add YAML documentation for the SiFive FU540
arch: riscv: add support for building DTB files from DT source data
drm/i915/gvt: ignore unexpected pvinfo write
lapb: fixed leak of control-blocks.
tipc: purge deferredq list for each grp member in tipc_group_delete
ax25: fix inconsistent lock state in ax25_destroy_timer
neigh: fix use-after-free read in pneigh_get_next
tcp: fix compile error if !CONFIG_SYSCTL
hv_sock: Suppress bogus "may be used uninitialized" warnings
be2net: Fix number of Rx queues used for flow hashing
net: handle 802.1P vlan 0 packets properly
Linux 5.2-rc5
tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
tcp: add tcp_min_snd_mss sysctl
tcp: tcp_fragment() should apply sane memory limits
tcp: limit payload size of sacked skbs
Revert "net: phylink: set the autoneg state in phylink_phy_change"
bpf: fix nested bpf tracepoints with per-cpu data
bpf: Fix out of bounds memory access in bpf_sk_storage
vsock/virtio: set SOCK_DONE on peer shutdown
net: dsa: rtl8366: Fix up VLAN filtering
net: phylink: set the autoneg state in phylink_phy_change
powerpc/32: fix build failure on book3e with KVM
powerpc/booke: fix fast syscall entry on SMP
powerpc/32s: fix initial setup of segment registers on secondary CPU
x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback
net: add high_order_alloc_disable sysctl/static key
tcp: add tcp_tx_skb_cache sysctl
tcp: add tcp_rx_skb_cache sysctl
sysctl: define proc_do_static_key()
hv_netvsc: Set probe mode to sync
net: sched: flower: don't call synchronize_rcu() on mask creation
net: dsa: fix warning same module names
sctp: Free cookie before we memdup a new one
net: dsa: microchip: Don't try to read stats for unused ports
qmi_wwan: extend permitted QMAP mux_id value range
qmi_wwan: avoid RCU stalls on device disconnect when in QMAP mode
qmi_wwan: add network device usage statistics for qmimux devices
qmi_wwan: add support for QMAP padding in the RX path
bpf, x64: fix stack layout of JITed bpf code
Smack: Restore the smackfsdef mount option and add missing prefixes
bpf, devmap: Add missing RCU read lock on flush
bpf, devmap: Add missing bulk queue free
bpf, devmap: Fix premature entry free on destroying map
ftrace: Fix NULL pointer dereference in free_ftrace_func_mapper()
module: Fix livepatch/ftrace module text permissions race
tracing/uprobe: Fix obsolete comment on trace_uprobe_create()
tracing/uprobe: Fix NULL pointer dereference in trace_uprobe_create()
tracing: Make two symbols static
tracing: avoid build warning with HAVE_NOP_MCOUNT
tracing: Fix out-of-range read in trace_stack_print()
gfs2: Fix rounding error in gfs2_iomap_page_prepare
net: phylink: further mac_config documentation improvements
nfc: Ensure presence of required attributes in the deactivate_target handler
btrfs: start readahead also in seed devices
x86/kasan: Fix boot with 5-level paging and KASAN
cfg80211: report measurement start TSF correctly
cfg80211: fix memory leak of wiphy device name
cfg80211: util: fix bit count off by one
mac80211: do not start any work during reconfigure flow
cfg80211: use BIT_ULL in cfg80211_parse_mbssid_data()
mac80211: only warn once on chanctx_conf being NULL
mac80211: drop robust management frames from unknown TA
gpu: ipu-v3: image-convert: Fix image downsize coefficients
gpu: ipu-v3: image-convert: Fix input bytesperline for packed formats
gpu: ipu-v3: image-convert: Fix input bytesperline width/height align
thunderbolt: Implement CIO reset correctly for Titan Ridge
ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
ARM: davinci: da850-evm: call regulator_has_full_constraints()
timekeeping: Repair ktime_get_coarse*() granularity
Revert "ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops"
ANDROID: update abi_gki_aarch64.xml
mm/devm_memremap_pages: fix final page put race
PCI/P2PDMA: track pgmap references per resource, not globally
lib/genalloc: introduce chunk owners
PCI/P2PDMA: fix the gen_pool_add_virt() failure path
mm/devm_memremap_pages: introduce devm_memunmap_pages
drivers/base/devres: introduce devm_release_action()
mm/vmscan.c: fix trying to reclaim unevictable LRU page
coredump: fix race condition between collapse_huge_page() and core dumping
mm/mlock.c: change count_mm_mlocked_page_nr return type
mm: mmu_gather: remove __tlb_reset_range() for force flush
fs/ocfs2: fix race in ocfs2_dentry_attach_lock()
mm/vmscan.c: fix recent_rotated history
mm/mlock.c: mlockall error for flag MCL_ONFAULT
scripts/decode_stacktrace.sh: prefix addr2line with $CROSS_COMPILE
mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node
mm: memcontrol: don't batch updates of local VM stats and events
PCI: PM: Skip devices in D0 for suspend-to-idle
ANDROID: Removed extraneous configs from gki
powerpc/bpf: use unsigned division instruction for 64-bit operations
bpf: fix div64 overflow tests to properly detect errors
bpf: sync BPF_FIB_LOOKUP flag changes with BPF uapi
bpf: simplify definition of BPF_FIB_LOOKUP related flags
cifs: add spinlock for the openFileList to cifsInodeInfo
cifs: fix panic in smb2_reconnect
x86/fpu: Don't use current->mm to check for a kthread
KVM: nVMX: use correct clean fields when copying from eVMCS
vfio-ccw: Destroy kmem cache region on module exit
block/ps3vram: Use %llu to format sector_t after LBDAF removal
libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached
bcache: fix stack corruption by PRECEDING_KEY()
arm64/sve: Fix missing SVE/FPSIMD endianness conversions
blk-mq: remove WARN_ON(!q->elevator) from blk_mq_sched_free_requests
blkio-controller.txt: Remove references to CFQ
block/switching-sched.txt: Update to blk-mq schedulers
null_blk: remove duplicate check for report zone
blk-mq: no need to check return value of debugfs_create functions
io_uring: fix memory leak of UNIX domain socket inode
block: force select mq-deadline for zoned block devices
binder: fix possible UAF when freeing buffer
drm/amdgpu: return 0 by default in amdgpu_pm_load_smu_firmware
drm/amdgpu: Fix bounds checking in amdgpu_ras_is_supported()
ANDROID: x86 gki_defconfig: enable DMA_CMA
ANDROID: Fixed x86 regression
ANDROID: gki_defconfig: enable DMA_CMA
Input: synaptics - enable SMBus on ThinkPad E480 and E580
net: mvpp2: prs: Use the correct helpers when removing all VID filters
net: mvpp2: prs: Fix parser range for VID filtering
mlxsw: spectrum: Disallow prio-tagged packets when PVID is removed
mlxsw: spectrum_buffers: Reduce pool size on Spectrum-2
selftests: tc_flower: Add TOS matching test
mlxsw: spectrum_flower: Fix TOS matching
selftests: mlxsw: Test nexthop offload indication
mlxsw: spectrum_router: Refresh nexthop neighbour when it becomes dead
mlxsw: spectrum: Use different seeds for ECMP and LAG hash
net: tls, correctly account for copied bytes with multiple sk_msgs
vrf: Increment Icmp6InMsgs on the original netdev
cpuset: restore sanity to cpuset_cpus_allowed_fallback()
net: ethtool: Allow matching on vlan DEI bit
linux-next: DOC: RDS: Fix a typo in rds.txt
x86/kgdb: Return 0 from kgdb_arch_set_breakpoint()
mpls: fix af_mpls dependencies for real
selinux: fix a missing-check bug in selinux_sb_eat_lsm_opts()
selinux: fix a missing-check bug in selinux_add_mnt_opt( )
arm64: tlbflush: Ensure start/end of address range are aligned to stride
usb: typec: Make sure an alt mode exist before getting its partner
KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy
KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST
KVM: arm64: Implement vq_present() as a macro
xdp: check device pointer before clearing
bpf: net: Set sk_bpf_storage back to NULL for cloned sk
Btrfs: fix race between block group removal and block group allocation
clocksource/drivers/arm_arch_timer: Don't trace count reader functions
i2c: pca-platform: Fix GPIO lookup code
thunderbolt: Make sure device runtime resume completes before taking domain lock
drm: add fallback override/firmware EDID modes workaround
i2c: acorn: fix i2c warning
arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
drm/edid: abstract override/firmware EDID retrieval
platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
platform/x86: intel-vbtn: Report switch events when event wakes device
platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
ARM: mvebu_v7_defconfig: fix Ethernet on Clearfog
x86/resctrl: Prevent NULL pointer dereference when local MBM is disabled
x86/resctrl: Don't stop walking closids when a locksetup group is found
iommu/arm-smmu: Avoid constant zero in TLBI writes
drm/i915/perf: fix whitelist on Gen10+
drm/i915/sdvo: Implement proper HDMI audio support for SDVO
drm/i915: Fix per-pixel alpha with CCS
drm/i915/dmc: protect against reading random memory
drm/i915/dsi: Use a fuzzy check for burst mode clock check
Input: imx_keypad - make sure keyboard can always wake up system
selinux: log raw contexts as untrusted strings
ptrace: restore smp_rmb() in __ptrace_may_access()
IB/hfi1: Correct tid qp rcd to match verbs context
IB/hfi1: Close PSM sdma_progress sleep window
IB/hfi1: Validate fault injection opcode user input
geneve: Don't assume linear buffers in error handler
vxlan: Don't assume linear buffers in error handler
net: openvswitch: do not free vport if register_netdevice() is failed.
net: correct udp zerocopy refcnt also when zerocopy only on append
drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc
ovl: fix wrong flags check in FS_IOC_FS[SG]ETXATTR ioctls
riscv: Fix udelay in RV32.
drm/vmwgfx: fix a warning due to missing dma_parms
riscv: export pm_power_off again
drm/vmwgfx: Honor the sg list segment size limitation
RISC-V: defconfig: enable clocks, serial console
drm/vmwgfx: Use the backdoor port if the HB port is not available
bpf: lpm_trie: check left child of last leftmost node for NULL
Revert "fuse: require /dev/fuse reads to have enough buffer capacity"
ALSA: ice1712: Check correct return value to snd_i2c_sendbytes (EWS/DMX 6Fire)
ALSA: oxfw: allow PCM capture for Stanton SCS.1m
ALSA: firewire-motu: fix destruction of data for isochronous resources
s390/ctl_reg: mark __ctl_set_bit and __ctl_clear_bit as __always_inline
s390/boot: disable address-of-packed-member warning
ANDROID: update gki aarch64 ABI representation
cgroup: Fix css_task_iter_advance_css_set() cset skip condition
drm/panfrost: Require the simple_ondemand governor
drm/panfrost: make devfreq optional again
drm/gem_shmem: Use a writecombine mapping for ->vaddr
mmc: sdhi: disallow HS400 for M3-W ES1.2, RZ/G2M, and V3H
ASoC: Intel: sst: fix kmalloc call with wrong flags
ASoC: core: Fix deadlock in snd_soc_instantiate_card()
cgroup/bfq: revert bfq.weight symlink change
ARM: dts: am335x phytec boards: Fix cd-gpios active level
ARM: dts: dra72x: Disable usb4_tm target module
nfp: ensure skb network header is set for packet redirect
tcp: fix undo spurious SYNACK in passive Fast Open
mpls: fix af_mpls dependencies
ibmvnic: Fix unchecked return codes of memory allocations
ibmvnic: Refresh device multicast list after reset
ibmvnic: Do not close unopened driver during reset
mpls: fix warning with multi-label encap
net: phy: rename Asix Electronics PHY driver
ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero
net: ipv4: fib_semantics: fix uninitialized variable
Input: iqs5xx - get axis info before calling input_mt_init_slots()
Linux 5.2-rc4
drm: panel-orientation-quirks: Add quirk for GPD MicroPC
drm: panel-orientation-quirks: Add quirk for GPD pocket2
counter/ftm-quaddec: Add missing dependencies in Kconfig
staging: iio: adt7316: Fix build errors when GPIOLIB is not set
x86/fpu: Update kernel's FPU state before using for the fsave header
MAINTAINERS: Karthikeyan Ramasubramanian is MIA
i2c: xiic: Add max_read_len quirk
ANDROID: update ABI representation
gpio: pca953x: hack to fix 24 bit gpio expanders
net/mlx5e: Support tagged tunnel over bond
net/mlx5e: Avoid detaching non-existing netdev under switchdev mode
net/mlx5e: Fix source port matching in fdb peer flow rule
net/mlx5e: Replace reciprocal_scale in TX select queue function
net/mlx5e: Add ndo_set_feature for uplink representor
net/mlx5: Avoid reloading already removed devices
net/mlx5: Update pci error handler entries and command translation
RAS/CEC: Convert the timer callback to a workqueue
RAS/CEC: Fix binary search function
x86/mm/KASLR: Compute the size of the vmemmap section properly
can: purge socket error queue on sock destruct
can: flexcan: Remove unneeded registration message
can: af_can: Fix error path of can_init()
can: m_can: implement errata "Needless activation of MRAF irq"
can: mcp251x: add support for mcp25625
dt-bindings: can: mcp251x: add mcp25625 support
can: xilinx_can: use correct bittiming_const for CAN FD core
can: flexcan: fix timeout when set small bitrate
can: usb: Kconfig: Remove duplicate menu entry
lockref: Limit number of cmpxchg loop retries
uaccess: add noop untagged_addr definition
x86/insn-eval: Fix use-after-free access to LDT entry
kbuild: use more portable 'command -v' for cc-cross-prefix
s390/unwind: correct stack switching during unwind
scsi: hpsa: correct ioaccel2 chaining
btrfs: Always trim all unallocated space in btrfs_trim_free_extents
netfilter: ipv6: nf_defrag: accept duplicate fragments again
powerpc/32s: fix booting with CONFIG_PPC_EARLY_DEBUG_BOOTX
drm/meson: fix G12A primary plane disabling
drm/meson: fix primary plane disabling
drm/meson: fix G12A HDMI PLL settings for 4K60 1000/1001 variations
block, bfq: add weight symlink to the bfq.weight cgroup parameter
cgroup: let a symlink too be created with a cftype file
powerpc/64s: __find_linux_pte() synchronization vs pmdp_invalidate()
powerpc/64s: Fix THP PMD collapse serialisation
powerpc: Fix kexec failure on book3s/32
drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
drm/nouveau/secboot: split out FW version-specific LS function pointers
drm/nouveau/secboot: pass max supported FW version to LS load funcs
drm/nouveau/core: support versioned firmware loading
drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
block: free sched's request pool in blk_cleanup_queue
bpf: expand section tests for test_section_names
bpf: more msg_name rewrite tests to test_sock_addr
bpf, bpftool: enable recvmsg attach types
bpf, libbpf: enable recvmsg attach types
bpf: sync tooling uapi header
bpf: fix unconnected udp hooks
vfio/mdev: Synchronize device create/remove with parent removal
vfio/mdev: Avoid creating sysfs remove file on stale device removal
pktgen: do not sleep with the thread lock held.
net: mvpp2: Use strscpy to handle stat strings
net: rds: fix memory leak in rds_ib_flush_mr_pool
ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
soundwire: intel: set dai min and max channels correctly
soundwire: stream: fix bad unlock balance
x86/fpu: Use fault_in_pages_writeable() for pre-faulting
nvme-rdma: use dynamic dma mapping per command
nvme: Fix u32 overflow in the number of namespace list calculation
vfio/mdev: Improve the create/remove sequence
SoC: rt274: Fix internal jack assignment in set_jack callback
ALSA: hdac: fix memory release for SST and SOF drivers
ASoC: SOF: Intel: hda: use the defined ppcap functions
ASoC: core: move DAI pre-links initiation to snd_soc_instantiate_card
ASoC: Intel: cht_bsw_rt5672: fix kernel oops with platform_name override
ASoC: Intel: cht_bsw_nau8824: fix kernel oops with platform_name override
ASoC: Intel: bytcht_es8316: fix kernel oops with platform_name override
ASoC: Intel: cht_bsw_max98090: fix kernel oops with platform_name override
Revert "gfs2: Replace gl_revokes with a GLF flag"
arm64: Silence gcc warnings about arch ABI drift
parisc: Fix crash due alternative coding for NP iopdir_fdc bit
parisc: Use lpa instruction to load physical addresses in driver code
parisc: configs: Remove useless UEVENT_HELPER_PATH
parisc: Use implicit space register selection for loading the coherence index of I/O pdirs
usb: gadget: udc: lpc32xx: fix return value check in lpc32xx_udc_probe()
usb: gadget: dwc2: fix zlp handling
usb: dwc2: Set actual frame number for completed ISOC transfer for none DDMA
usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
usb: phy: mxs: Disable external charger detect in mxs_phy_hw_init()
usb: dwc2: Fix DMA cache alignment issues
usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression)
ARM64: trivial: s/TIF_SECOMP/TIF_SECCOMP/ comment typo fix
drm/komeda: Potential error pointer dereference
drm/komeda: remove set but not used variable 'kcrtc'
x86/CPU: Add more Icelake model numbers
hwmon: (pmbus/core) Treat parameters as paged if on multiple pages
hwmon: (pmbus/core) mutex_lock write in pmbus_set_samples
hwmon: (core) add thermal sensors only if dev->of_node is present
Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
net: aquantia: fix wol configuration not applied sometimes
ethtool: fix potential userspace buffer overflow
Fix memory leak in sctp_process_init
net: rds: fix memory leak when unload rds_rdma
ipv6: fix the check before getting the cookie in rt6_get_cookie
ipv4: not do cache for local delivery if bc_forwarding is enabled
selftests: vm: Fix test build failure when built by itself
tools: bpftool: Fix JSON output when lookup fails
mmc: also set max_segment_size in the device
mtip32xx: also set max_segment_size in the device
rsxx: don't call dma_set_max_seg_size
nvme-pci: don't limit DMA segement size
s390/qeth: handle error when updating TX queue count
s390/qeth: fix VLAN attribute in bridge_hostnotify udev event
s390/qeth: check dst entry before use
s390/qeth: handle limited IPv4 broadcast in L3 TX path
ceph: fix error handling in ceph_get_caps()
ceph: avoid iput_final() while holding mutex or in dispatch thread
ceph: single workqueue for inode related works
cgroup: css_task_iter_skip()'d iterators must be advanced before accessed
drm/amd/amdgpu: add RLC firmware to support raven1 refresh
drm/amd/powerplay: add set_power_profile_mode for raven1_refresh
drm/amdgpu: fix ring test failure issue during s3 in vce 3.0 (V2)
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lib/test_stackinit: Handle Clang auto-initialization pattern
block: Drop unlikely before IS_ERR(_OR_NULL)
xen/swiotlb: don't initialize swiotlb twice on arm64
s390/mm: fix address space detection in exception handling
HID: logitech-dj: Fix 064d:c52f receiver support
Revert "HID: core: Call request_module before doing device_add"
Revert "HID: core: Do not call request_module() in async context"
Revert "HID: Increase maximum report size allowed by hid_field_extract()"
tests: fix pidfd-test compilation
signal: improve comments
samples: fix pidfd-metadata compilation
arm64: arch_timer: mark functions as __always_inline
arm64: smp: Moved cpu_logical_map[] to smp.h
arm64: cpufeature: Fix missing ZFR0 in __read_sysreg_by_encoding()
selftests/bpf: move test_lirc_mode2_user to TEST_GEN_PROGS_EXTENDED
USB: Fix chipmunk-like voice when using Logitech C270 for recording audio.
USB: usb-storage: Add new ID to ums-realtek
udmabuf: actually unmap the scatterlist
net: fix indirect calls helpers for ptype list hooks.
net: ipvlan: Fix ipvlan device tso disabled while NETIF_F_IP_CSUM is set
scsi: smartpqi: unlock on error in pqi_submit_raid_request_synchronous()
scsi: ufs: Check that space was properly alloced in copy_query_response
udp: only choose unbound UDP socket for multicast when not in a VRF
net/tls: replace the sleeping lock around RX resync with a bit lock
Revert "net/tls: avoid NULL-deref on resync during device removal"
block: aoe: no need to check return value of debugfs_create functions
net: dsa: sja1105: Fix link speed not working at 100 Mbps and below
net: phylink: avoid reducing support mask
scripts/checkstack.pl: Fix arm64 wrong or unknown architecture
kbuild: tar-pkg: enable communication with jobserver
kconfig: tests: fix recursive inclusion unit test
kbuild: teach kselftest-merge to find nested config files
nvmet: fix data_len to 0 for bdev-backed write_zeroes
MAINTAINERS: Hand over skd maintainership
ASoC: sun4i-i2s: Add offset to RX channel select
ASoC: sun4i-i2s: Fix sun8i tx channel offset mask
ASoC: max98090: remove 24-bit format support if RJ is 0
ASoC: da7219: Fix build error without CONFIG_I2C
ASoC: SOF: Intel: hda: Fix COMPILE_TEST build error
drm/arm/hdlcd: Allow a bit of clock tolerance
drm/arm/hdlcd: Actually validate CRTC modes
drm/arm/mali-dp: Add a loop around the second set CVAL and try 5 times
drm/komeda: fixing of DMA mapping sg segment warning
netfilter: ipv6: nf_defrag: fix leakage of unqueued fragments
habanalabs: Read upper bits of trace buffer from RWPHI
arm64: arch_k3: Fix kconfig dependency warning
drm: don't block fb changes for async plane updates
drm/vc4: fix fb references in async update
drm/msm: fix fb references in async update
drm/amd: fix fb references in async update
drm/rockchip: fix fb references in async update
xen-blkfront: switch kcalloc to kvcalloc for large array allocation
drm/mediatek: call mtk_dsi_stop() after mtk_drm_crtc_atomic_disable()
drm/mediatek: clear num_pipes when unbind driver
drm/mediatek: call drm_atomic_helper_shutdown() when unbinding driver
drm/mediatek: unbind components in mtk_drm_unbind()
drm/mediatek: fix unbind functions
net: sfp: read eeprom in maximum 16 byte increments
selftests: set sysctl bc_forwarding properly in router_broadcast.sh
ANDROID: update gki aarch64 ABI representation
net: ethernet: mediatek: Use NET_IP_ALIGN to judge if HW RX_2BYTE_OFFSET is enabled
net: ethernet: mediatek: Use hw_feature to judge if HWLRO is supported
net: ethernet: ti: cpsw_ethtool: fix ethtool ring param set
ANDROID: gki_defconfig: Enable CMA, SLAB_FREELIST (RANDOM and HARDENED) on x86
bpf: udp: Avoid calling reuseport's bpf_prog from udp_gro
bpf: udp: ipv6: Avoid running reuseport's bpf_prog from __udp6_lib_err
rcu: locking and unlocking need to always be at least barriers
ANDROID: gki_defconfig: enable SLAB_FREELIST_RANDOM, SLAB_FREELIST_HARDENED
ANDROID: gki_defconfig: enable CMA and increase CMA_AREAS
ASoC: SOF: fix DSP oops definitions in FW ABI
ASoC: hda: fix unbalanced codec dev refcount for HDA_DEV_ASOC
ASoC: SOF: ipc: replace fw ready bitfield with explicit bit ordering
ASoC: SOF: bump to ABI 3.6
ASoC: SOF: soundwire: add initial soundwire support
ASoC: SOF: uapi: mirror firmware changes
ASoC: Intel: Baytrail: add quirk for Aegex 10 (RU2) tablet
xfs: inode btree scrubber should calculate im_boffset correctly
mmc: sdhci_am654: Fix SLOTTYPE write
usb: typec: ucsi: ccg: fix memory leak in do_flash
ANDROID: update gki aarch64 ABI representation
habanalabs: Fix virtual address access via debugfs for 2MB pages
drm/komeda: Constify the usage of komeda_component/pipeline/dev_funcs
x86/power: Fix 'nosmt' vs hibernation triple fault during resume
mm/vmalloc: Avoid rare case of flushing TLB with weird arguments
mm/vmalloc: Fix calculation of direct map addr range
PM: sleep: Add kerneldoc comments to some functions
drm/i915/gvt: save RING_HEAD into vreg when vgpu switched out
sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
mdesc: fix a missing-check bug in get_vdev_port_node_info()
drm/i915/gvt: add F_CMD_ACCESS flag for wa regs
sparc64: Fix regression in non-hypervisor TLB flush xcall
packet: unconditionally free po->rollover
Update my email address
net: hns: Fix loopback test failed at copper ports
Linux 5.2-rc3
net: dsa: mv88e6xxx: avoid error message on remove from VLAN 0
mm, compaction: make sure we isolate a valid PFN
include/linux/generic-radix-tree.h: fix kerneldoc comment
kernel/signal.c: trace_signal_deliver when signal_group_exit
drivers/iommu/intel-iommu.c: fix variable 'iommu' set but not used
spdxcheck.py: fix directory structures
kasan: initialize tag to 0xff in __kasan_kmalloc
z3fold: fix sheduling while atomic
scripts/gdb: fix invocation when CONFIG_COMMON_CLK is not set
mm/gup: continue VM_FAULT_RETRY processing even for pre-faults
ocfs2: fix error path kobject memory leak
memcg: make it work on sparse non-0-node systems
mm, memcg: consider subtrees in memory.events
prctl_set_mm: downgrade mmap_sem to read lock
prctl_set_mm: refactor checks from validate_prctl_map
kernel/fork.c: make max_threads symbol static
arch/arm/boot/compressed/decompress.c: fix build error due to lz4 changes
arch/parisc/configs/c8000_defconfig: remove obsoleted CONFIG_DEBUG_SLAB_LEAK
mm/vmalloc.c: fix typo in comment
lib/sort.c: fix kernel-doc notation warnings
mm: fix Documentation/vm/hmm.rst Sphinx warnings
treewide: fix typos of SPDX-License-Identifier
crypto: ux500 - fix license comment syntax error
MAINTAINERS: add I2C DT bindings to ARM platforms
MAINTAINERS: add DT bindings to i2c drivers
mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies()
iwlwifi: mvm: change TLC config cmd sent by rs to be async
iwlwifi: Fix double-free problems in iwl_req_fw_callback()
iwlwifi: fix AX201 killer sku loading firmware issue
iwlwifi: print fseq info upon fw assert
iwlwifi: clear persistence bit according to device family
iwlwifi: fix load in rfkill flow for unified firmware
iwlwifi: mvm: remove d3_sram debugfs file
bpf, riscv: clear high 32 bits for ALU32 add/sub/neg/lsh/rsh/arsh
libbpf: Return btf_fd for load_sk_storage_btf
HID: a4tech: fix horizontal scrolling
HID: hyperv: Add a module description line
net: dsa: sja1105: Don't store frame type in skb->cb
block: print offending values when cloned rq limits are exceeded
blk-mq: Document the blk_mq_hw_queue_to_node() arguments
blk-mq: Fix spelling in a source code comment
block: Fix bsg_setup_queue() kernel-doc header
block: Fix rq_qos_wait() kernel-doc header
block: Fix blk_mq_*_map_queues() kernel-doc headers
block: Fix throtl_pending_timer_fn() kernel-doc header
block: Convert blk_invalidate_devt() header into a non-kernel-doc header
block/partitions/ldm: Convert a kernel-doc header into a non-kernel-doc header
leds: avoid flush_work in atomic context
cgroup: Include dying leaders with live threads in PROCS iterations
cgroup: Implement css_task_iter_skip()
cgroup: Call cgroup_release() before __exit_signal()
netfilter: nf_tables: fix module autoload with inet family
Revert "lockd: Show pid of lockd for remote locks"
ALSA: hda/realtek - Update headset mode for ALC256
fs/adfs: fix filename fixup handling for "/" and "//" names
fs/adfs: move append_filetype_suffix() into adfs_object_fixup()
fs/adfs: remove truncated filename hashing
fs/adfs: factor out filename fixup
fs/adfs: factor out object fixups
fs/adfs: factor out filename case lowering
fs/adfs: factor out filename comparison
ovl: doc: add non-standard corner cases
pstore/ram: Run without kernel crash dump region
MAINTAINERS: add Vasily Gorbik and Christian Borntraeger for s390
MAINTAINERS: Farewell Martin Schwidefsky
pstore: Set tfm to NULL on free_buf_for_compression
nds32: add new emulations for floating point instruction
nds32: Avoid IEX status being incorrectly modified
math-emu: Use statement expressions to fix Wshift-count-overflow warning
net: correct zerocopy refcnt with udp MSG_MORE
ethtool: Check for vlan etype or vlan tci when parsing flow_rule
net: don't clear sock->sk early to avoid trouble in strparser
net-gro: fix use-after-free read in napi_gro_frags()
net: dsa: tag_8021q: Create a stable binary format
net: dsa: tag_8021q: Change order of rx_vid setup
net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value
docs cgroups: add another example size for hugetlb
NFSv4.1: Fix bug only first CB_NOTIFY_LOCK is handled
NFSv4.1: Again fix a race where CB_NOTIFY_LOCK fails to wake a waiter
ipv4: tcp_input: fix stack out of bounds when parsing TCP options.
mlxsw: spectrum: Prevent force of 56G
mlxsw: spectrum_acl: Avoid warning after identical rules insertion
SUNRPC: Fix a use after free when a server rejects the RPCSEC_GSS credential
net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT
SUNRPC fix regression in umount of a secure mount
r8169: fix MAC address being lost in PCI D3
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net: core: support XDP generic on stacked devices.
netvsc: unshare skb in VF rx handler
udp: Avoid post-GRO UDP checksum recalculation
nvme-tcp: fix queue mapping when queue count is limited
nvme-rdma: fix queue mapping when queue count is limited
fpga: zynqmp-fpga: Correctly handle error pointer
selftests: vm: install test_vmalloc.sh for run_vmtests
userfaultfd: selftest: fix compiler warning
kselftest/cgroup: fix incorrect test_core skip
kselftest/cgroup: fix unexpected testing failure on test_core
kselftest/cgroup: fix unexpected testing failure on test_memcontrol
xtensa: Fix section mismatch between memblock_reserve and mem_reserve
signal/ptrace: Don't leak unitialized kernel memory with PTRACE_PEEK_SIGINFO
mwifiex: Abort at too short BSS descriptor element
mwifiex: Fix possible buffer overflows at parsing bss descriptor
drm/i915/gvt: Assign NULL to the pointer after memory free.
drm/i915/gvt: Check if cur_pt_type is valid
x86: intel_epb: Do not build when CONFIG_PM is unset
crypto: hmac - fix memory leak in hmac_init_tfm()
crypto: jitterentropy - change back to module_init()
ARM: dts: Drop bogus CLKSEL for timer12 on dra7
KVM: PPC: Book3S HV: Restore SPRG3 in kvmhv_p9_guest_entry()
KVM: PPC: Book3S HV: Fix lockdep warning when entering guest on POWER9
KVM: PPC: Book3S HV: XIVE: Fix page offset when clearing ESB pages
KVM: PPC: Book3S HV: XIVE: Take the srcu read lock when accessing memslots
KVM: PPC: Book3S HV: XIVE: Do not clear IRQ data of passthrough interrupts
KVM: PPC: Book3S HV: XIVE: Introduce a new mutex for the XIVE device
drm/i915/gvt: Fix cmd length of VEB_DI_IECP
drm/i915/gvt: refine ggtt range validation
drm/i915/gvt: Fix vGPU CSFE_CHICKEN1_REG mmio handler
drm/i915/gvt: Fix GFX_MODE handling
drm/i915/gvt: Update force-to-nonpriv register whitelist
drm/i915/gvt: Initialize intel_gvt_gtt_entry in stack
ima: show rules with IMA_INMASK correctly
evm: check hash algorithm passed to init_desc()
scsi: libsas: delete sas port if expander discover failed
scsi: libsas: only clear phy->in_shutdown after shutdown event done
scsi: scsi_dh_alua: Fix possible null-ptr-deref
scsi: smartpqi: properly set both the DMA mask and the coherent DMA mask
scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs)
scsi: zfcp: fix missing zfcp_port reference put on -EBUSY from port_remove
scsi: libcxgbi: add a check for NULL pointer in cxgbi_check_route()
net: phy: dp83867: Set up RGMII TX delay
net: phy: dp83867: do not call config_init twice
net: phy: dp83867: increase SGMII autoneg timer duration
net: phy: dp83867: fix speed 10 in sgmii mode
net: phy: marvell10g: report if the PHY fails to boot firmware
net: phylink: ensure consistent phy interface mode
cgroup: Use css_tryget() instead of css_tryget_online() in task_get_css()
blk-mq: Fix memory leak in error handling
usbip: usbip_host: fix stub_dev lock context imbalance regression
net: sh_eth: fix mdio access in sh_eth_close() for R-Car Gen2 and RZ/A1 SoCs
MIPS: uprobes: remove set but not used variable 'epc'
s390/crypto: fix possible sleep during spinlock aquired
MIPS: pistachio: Build uImage.gz by default
MIPS: Make virt_addr_valid() return bool
MIPS: Bounds check virt_addr_valid
CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
RDMA/efa: Remove MAYEXEC flag check from mmap flow
mlx5: avoid 64-bit division
IB/hfi1: Validate page aligned for a given virtual address
IB/{qib, hfi1, rdmavt}: Correct ibv_devinfo max_mr value
IB/hfi1: Insure freeze_work work_struct is canceled on shutdown
IB/rdmavt: Fix alloc_qpn() WARN_ON()
ASoC: sun4i-codec: fix first delay on Speaker
drm/amdgpu: reserve stollen vram for raven series
media: venus: hfi_parser: fix a regression in parser
selftests: bpf: fix compiler warning in flow_dissector test
arm64: use the correct function type for __arm64_sys_ni_syscall
arm64: use the correct function type in SYSCALL_DEFINE0
arm64: fix syscall_fn_t type
block: don't protect generic_make_request_checks with blk_queue_enter
block: move blk_exit_queue into __blk_release_queue
selftests: bpf: complete sub-register zero extension checks
selftests: bpf: move sub-register zero extension checks into subreg.c
ovl: detect overlapping layers
drm/i915/icl: Add WaDisableBankHangMode
ALSA: fireface: Use ULL suffixes for 64-bit constants
signal/arm64: Use force_sig not force_sig_fault for SIGKILL
nl80211: fill all policy .type entries
mac80211: free peer keys before vif down in mesh
ANDROID: ABI out: Use the extension .xml rather then .out
drm/mediatek: respect page offset for PRIME mmap calls
drm/mediatek: adjust ddp clock control flow
ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops
KVM: PPC: Book3S HV: XIVE: Fix the enforced limit on the vCPU identifier
KVM: PPC: Book3S HV: XIVE: Do not test the EQ flag validity when resetting
KVM: PPC: Book3S HV: XIVE: Clear file mapping when device is released
KVM: PPC: Book3S HV: Don't take kvm->lock around kvm_for_each_vcpu
KVM: PPC: Book3S: Use new mutex to synchronize access to rtas token list
KVM: PPC: Book3S HV: Use new mutex to synchronize MMU setup
KVM: PPC: Book3S HV: Avoid touching arch.mmu_ready in XIVE release functions
Revert "drivers: thermal: tsens: Add new operation to check if a sensor is enabled"
net/mlx5e: Disable rxhash when CQE compress is enabled
net/mlx5e: restrict the real_dev of vlan device is the same as uplink device
net/mlx5: Allocate root ns memory using kzalloc to match kfree
net/mlx5: Avoid double free in fs init error unwinding path
net/mlx5: Avoid double free of root ns in the error flow path
net/mlx5: Fix error handling in mlx5_load()
Documentation: net-sysfs: Remove duplicate PHY device documentation
llc: fix skb leak in llc_build_and_send_ui_pkt()
selftests: pmtu: Fix encapsulating device in pmtu_vti6_link_change_mtu
dfs_cache: fix a wrong use of kfree in flush_cache_ent()
fs/cifs/smb2pdu.c: fix buffer free in SMB2_ioctl_free
cifs: fix memory leak of pneg_inbuf on -EOPNOTSUPP ioctl case
xenbus: Avoid deadlock during suspend due to open transactions
xen/pvcalls: Remove set but not used variable
tracing: Avoid memory leak in predicate_parse()
habanalabs: fix bug in checking huge page optimization
mmc: sdhci: Fix SDIO IRQ thread deadlock
dpaa_eth: use only online CPU portals
net: mvneta: Fix err code path of probe
net: stmmac: Do not output error on deferred probe
Btrfs: fix race updating log root item during fsync
Btrfs: fix wrong ctime and mtime of a directory after log replay
ARC: [plat-hsdk] Get rid of inappropriate PHY settings
ARC: [plat-hsdk]: Add support of Vivante GPU
ARC: [plat-hsdk]: enable creg-gpio controller
Btrfs: fix fsync not persisting changed attributes of a directory
btrfs: qgroup: Check bg while resuming relocation to avoid NULL pointer dereference
btrfs: reloc: Also queue orphan reloc tree for cleanup to avoid BUG_ON()
Btrfs: incremental send, fix emission of invalid clone operations
Btrfs: incremental send, fix file corruption when no-holes feature is enabled
btrfs: correct zstd workspace manager lock to use spin_lock_bh()
btrfs: Ensure replaced device doesn't have pending chunk allocation
ia64: fix build errors by exporting paddr_to_nid()
ASoC: SOF: Intel: hda: fix the hda init chip
ASoC: SOF: ipc: fix a race, leading to IPC timeouts
ASoC: SOF: control: correct the copy size for bytes kcontrol put
ASoC: SOF: pcm: remove warning - initialize workqueue on open
ASoC: SOF: pcm: clear hw_params_upon_resume flag correctly
ASoC: SOF: core: fix error handling with the probe workqueue
ASoC: SOF: core: remove snd_soc_unregister_component in case of error
ASoC: SOF: core: remove DSP after unregistering machine driver
ASoC: soc-core: fixup references at soc_cleanup_card_resources()
arm64/module: revert to unsigned interpretation of ABS16/32 relocations
KVM: s390: Do not report unusabled IDs via KVM_CAP_MAX_VCPU_ID
kvm: fix compile on s390 part 2
xprtrdma: Use struct_size() in kzalloc()
tools headers UAPI: Sync kvm.h headers with the kernel sources
perf record: Fix s390 missing module symbol and warning for non-root users
perf machine: Read also the end of the kernel
perf test vmlinux-kallsyms: Ignore aliases to _etext when searching on kallsyms
perf session: Add missing swap ops for namespace events
perf namespace: Protect reading thread's namespace
tools headers UAPI: Sync drm/drm.h with the kernel
s390/crypto: fix gcm-aes-s390 selftest failures
s390/zcrypt: Fix wrong dispatching for control domain CPRBs
s390/pci: fix assignment of bus resources
s390/pci: fix struct definition for set PCI function
s390: mark __cpacf_check_opcode() and cpacf_query_func() as __always_inline
s390: add unreachable() to dump_fault_info() to fix -Wmaybe-uninitialized
tools headers UAPI: Sync drm/i915_drm.h with the kernel
tools headers UAPI: Sync linux/fs.h with the kernel
tools headers UAPI: Sync linux/sched.h with the kernel
tools arch x86: Sync asm/cpufeatures.h with the with the kernel
tools include UAPI: Update copy of files related to new fspick, fsmount, fsconfig, fsopen, move_mount and open_tree syscalls
perf arm64: Fix mksyscalltbl when system kernel headers are ahead of the kernel
perf data: Fix 'strncat may truncate' build failure with recent gcc
arm64: Fix the arm64_personality() syscall wrapper redirection
rtw88: Make some symbols static
rtw88: avoid circular locking between local->iflist_mtx and rtwdev->mutex
rsi: Properly initialize data in rsi_sdio_ta_reset
rtw88: fix unassigned rssi_level in rtw_sta_info
rtw88: fix subscript above array bounds compiler warning
fuse: extract helper for range writeback
fuse: fix copy_file_range() in the writeback case
mmc: meson-gx: fix irq ack
mmc: tmio: fix SCC error handling to avoid false positive CRC error
mmc: tegra: Fix a warning message
memstick: mspro_block: Fix an error code in mspro_block_issue_req()
mac80211: mesh: fix RCU warning
nl80211: fix station_info pertid memory leak
mac80211: Do not use stack memory with scatterlist for GMAC
ALSA: line6: Assure canceling delayed work at disconnection
configfs: Fix use-after-free when accessing sd->s_dentry
ALSA: hda - Force polling mode on CNL for fixing codec communication
i2c: synquacer: fix synquacer_i2c_doxfer() return value
i2c: mlxcpld: Fix wrong initialization order in probe
i2c: dev: fix potential memory leak in i2cdev_ioctl_rdwr
RDMA/core: Fix panic when port_data isn't initialized
RDMA/uverbs: Pass udata on uverbs error unwind
RDMA/core: Clear out the udata before error unwind
net: aquantia: tcp checksum 0xffff being handled incorrectly
net: aquantia: fix LRO with FCS error
net: aquantia: check rx csum for all packets in LRO session
net: aquantia: tx clean budget logic error
vhost: scsi: add weight support
vhost: vsock: add weight support
vhost_net: fix possible infinite loop
vhost: introduce vhost_exceeds_weight()
virtio: Fix indentation of VIRTIO_MMIO
virtio: add unlikely() to WARN_ON_ONCE()
iommu/vt-d: Set the right field for Page Walk Snoop
iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock
iommu: Add missing new line for dma type
drm/etnaviv: lock MMU while dumping core
block: Don't revalidate bdev of hidden gendisk
loop: Don't change loop device under exclusive opener
drm/imx: ipuv3-plane: fix atomic update status query for non-plus i.MX6Q
drm/qxl: drop WARN_ONCE()
iio: temperature: mlx90632 Relax the compatibility check
iio: imu: st_lsm6dsx: fix PM support for st_lsm6dsx i2c controller
staging:iio:ad7150: fix threshold mode config bit
fuse: add FUSE_WRITE_KILL_PRIV
fuse: fallocate: fix return with locked inode
PCI: PM: Avoid possible suspend-to-idle issue
ACPI: PM: Call pm_set_suspend_via_firmware() during hibernation
ACPI/PCI: PM: Add missing wakeup.flags.valid checks
ovl: support the FS_IOC_FS[SG]ETXATTR ioctls
soundwire: stream: fix out of boundary access on port properties
net: tulip: de4x5: Drop redundant MODULE_DEVICE_TABLE()
selftests/tls: add test for sleeping even though there is data
net/tls: fix no wakeup on partial reads
selftests/tls: test for lowat overshoot with multiple records
net/tls: fix lowat calculation if some data came from previous record
dpaa2-eth: Make constant 64-bit long
dpaa2-eth: Use PTR_ERR_OR_ZERO where appropriate
dpaa2-eth: Fix potential spectre issue
bonding/802.3ad: fix slave link initialization transition states
io_uring: Fix __io_uring_register() false success
net: ethtool: Document get_rxfh_context and set_rxfh_context ethtool ops
net: stmmac: dwmac-mediatek: modify csr_clk value to fix mdio read/write fail
net: stmmac: fix csr_clk can't be zero issue
net: stmmac: update rx tail pointer register to fix rx dma hang issue.
ip_sockglue: Fix missing-check bug in ip_ra_control()
ipv6_sockglue: Fix a missing-check bug in ip6_ra_control()
efi: Allow the number of EFI configuration tables entries to be zero
efi/x86/Add missing error handling to old_memmap 1:1 mapping code
parisc: Fix compiler warnings in float emulation code
parisc/slab: cleanup after /proc/slab_allocators removal
bpf: sockmap, fix use after free from sleep in psock backlog workqueue
net: sched: don't use tc_action->order during action dump
cxgb4: Revert "cxgb4: Remove SGE_HOST_PAGE_SIZE dependency on page size"
net: fec: fix the clk mismatch in failed_reset path
habanalabs: Avoid using a non-initialized MMU cache mutex
habanalabs: fix debugfs code
uapi/habanalabs: add opcode for enable/disable device debug mode
habanalabs: halt debug engines on user process close
selftests: rtc: rtctest: specify timeouts
selftests/harness: Allow test to configure timeout
selftests/ftrace: Add checkbashisms meta-testcase
selftests/ftrace: Make a script checkbashisms clean
media: smsusb: better handle optional alignment
test_firmware: Use correct snprintf() limit
genwqe: Prevent an integer overflow in the ioctl
parport: Fix mem leak in parport_register_dev_model
fpga: dfl: expand minor range when registering chrdev region
fpga: dfl: Add lockdep classes for pdata->lock
fpga: dfl: afu: Pass the correct device to dma_mapping_error()
fpga: stratix10-soc: fix use-after-free on s10_init()
w1: ds2408: Fix typo after 49695ac468
(reset on output_write retry with readback)
kheaders: Do not regenerate archive if config is not changed
kheaders: Move from proc to sysfs
drm/amd/display: Don't load DMCU for Raven 1 (v2)
drm/i915: Maintain consistent documentation subsection ordering
scripts/sphinx-pre-install: make it handle Sphinx versions
docs: Fix conf.py for Sphinx 2.0
vt/fbcon: deinitialize resources in visual_init() after failed memory allocation
xfs: fix broken log reservation debugging
clocksource/drivers/timer-ti-dm: Change to new style declaration
ASoC: core: lock client_mutex while removing link components
ASoC: simple-card: Restore original configuration of DAI format
{nl,mac}80211: allow 4addr AP operation on crypto controlled devices
mac80211_hwsim: mark expected switch fall-through
mac80211: fix rate reporting inside cfg80211_calculate_bitrate_he()
mac80211: remove set but not used variable 'old'
mac80211: handle deauthentication/disassociation from TDLS peer
gpio: fix gpio-adp5588 build errors
pinctrl: stmfx: Fix compile issue when CONFIG_OF_GPIO is not defined
staging: kpc2000: Add dependency on MFD_CORE to kconfig symbol 'KPC2000'
perf/ring-buffer: Use regular variables for nesting
perf/ring-buffer: Always use {READ,WRITE}_ONCE() for rb->user_page data
perf/ring_buffer: Add ordering to rb->nest increment
perf/ring_buffer: Fix exposing a temporarily decreased data_head
x86/CPU/AMD: Don't force the CPB cap when running under a hypervisor
x86/boot: Provide KASAN compatible aliases for string routines
ALSA: hda/realtek - Enable micmute LED for Huawei laptops
Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
Input: silead - add MSSL0017 to acpi_device_id
cxgb4: offload VLAN flows regardless of VLAN ethtype
hsr: fix don't prune the master node from the node_db
net: mvpp2: cls: Fix leaked ethtool_rx_flow_rule
docs: fix multiple doc build warnings in enumeration.rst
lib/list_sort: fix kerneldoc build error
docs: fix numaperf.rst and add it to the doc tree
doc: Cope with the deprecation of AutoReporter
doc: Cope with Sphinx logging deprecations
bpf: sockmap, restore sk_write_space when psock gets dropped
selftests: bpf: add zero extend checks for ALU32 and/or/xor
bpf, riscv: clear target register high 32-bits for and/or/xor on ALU32
spi: abort spi_sync if failed to prepare_transfer_hardware
ALSA: hda/realtek - Set default power save node to 0
ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST
powerpc/kexec: Fix loading of kernel + initramfs with kexec_file_load()
MIPS: TXx9: Fix boot crash in free_initmem()
MIPS: remove a space after -I to cope with header search paths for VDSO
MIPS: mark ginvt() as __always_inline
ipv4/igmp: fix another memory leak in igmpv3_del_delrec()
bnxt_en: Device serial number is supported only for PFs.
bnxt_en: Reduce memory usage when running in kdump kernel.
bnxt_en: Fix possible BUG() condition when calling pci_disable_msix().
bnxt_en: Fix aggregation buffer leak under OOM condition.
ipv6: Fix redirect with VRF
net: stmmac: fix reset gpio free missing
mISDN: make sure device name is NUL terminated
net: macb: save/restore the remaining registers and features
media: dvb: warning about dvb frequency limits produces too much noise
net/tls: don't ignore netdev notifications if no TLS features
net/tls: fix state removal with feature flags off
net/tls: avoid NULL-deref on resync during device removal
Documentation: add TLS offload documentation
Documentation: tls: RSTify the ktls documentation
Documentation: net: move device drivers docs to a submenu
mISDN: Fix indenting in dsp_cmx.c
ocelot: Dont allocate another multicast list, use __dev_mc_sync
Validate required parameters in inet6_validate_link_af
xhci: Use %zu for printing size_t type
xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
xhci: Fix immediate data transfer if buffer is already DMA mapped
usb: xhci: avoid null pointer deref when bos field is NULL
usb: xhci: Fix a potential null pointer dereference in xhci_debugfs_create_endpoint()
xhci: update bounce buffer with correct sg num
media: usb: siano: Fix false-positive "uninitialized variable" warning
spi: spi-fsl-spi: call spi_finalize_current_message() at the end
ALSA: hda/realtek - Check headset type by unplug and resume
powerpc/perf: Fix MMCRA corruption by bhrb_filter
powerpc/powernv: Return for invalid IMC domain
HID: logitech-hidpp: Add support for the S510 remote control
HID: multitouch: handle faulty Elo touch device
selftests: netfilter: add flowtable test script
netfilter: nft_flow_offload: IPCB is only valid for ipv4 family
netfilter: nft_flow_offload: don't offload when sequence numbers need adjustment
netfilter: nft_flow_offload: set liberal tracking mode for tcp
netfilter: nf_flow_table: ignore DF bit setting
ASoC: Intel: sof-rt5682: fix AMP quirk support
ASoC: Intel: sof-rt5682: fix for codec button mapping
clk: ti: clkctrl: Fix clkdm_clk handling
clk: imx: imx8mm: fix int pll clk gate
clk: sifive: restrict Kconfig scope for the FU540 PRCI driver
RDMA/hns: Fix PD memory leak for internal allocation
netfilter: nat: fix udp checksum corruption
selftests: netfilter: missing error check when setting up veth interface
RDMA/srp: Rename SRP sysfs name after IB device rename trigger
ipvs: Fix use-after-free in ip_vs_in
ARC: [plat-hsdk]: Add missing FIFO size entry in GMAC node
ARC: [plat-hsdk]: Add missing multicast filter bins number to GMAC node
samples, bpf: suppress compiler warning
samples, bpf: fix to change the buffer size for read()
bpf: Check sk_fullsock() before returning from bpf_sk_lookup()
bpf: fix out-of-bounds read in __bpf_skc_lookup
Documentation/networking: fix af_xdp.rst Sphinx warnings
netfilter: nft_fib: Fix existence check support
netfilter: nf_queue: fix reinject verdict handling
dmaengine: sprd: Add interrupt support for 2-stage transfer
dmaengine: sprd: Fix the right place to configure 2-stage transfer
dmaengine: sprd: Fix block length overflow
dmaengine: sprd: Fix the incorrect start for 2-stage destination channels
dmaengine: sprd: Add validation of current descriptor in irq handler
dmaengine: sprd: Fix the possible crash when getting descriptor status
tty: max310x: Fix external crystal register setup
serial: sh-sci: disable DMA for uart_console
serial: imx: remove log spamming error message
tty: serial: msm_serial: Fix XON/XOFF
USB: serial: option: add Telit 0x1260 and 0x1261 compositions
USB: serial: pl2303: add Allied Telesis VT-Kit3
USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
dmaengine: tegra210-adma: Fix spelling
dmaengine: tegra210-adma: Fix channel FIFO configuration
dmaengine: tegra210-adma: Fix crash during probe
dmaengine: mediatek-cqdma: sleeping in atomic context
dmaengine: dw-axi-dmac: fix null dereference when pointer first is null
perf/x86/intel/ds: Fix EVENT vs. UEVENT PEBS constraints
USB: rio500: update Documentation
USB: rio500: simplify locking
USB: rio500: fix memory leak in close after disconnect
USB: rio500: refuse more than one device at a time
usbip: usbip_host: fix BUG: sleeping function called from invalid context
USB: sisusbvga: fix oops in error path of sisusb_probe
USB: Add LPM quirk for Surface Dock GigE adapter
media: usb: siano: Fix general protection fault in smsusb
usb: mtu3: fix up undefined reference to usb_debug_root
USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
Input: elantech - enable middle button support on 2 ThinkPads
dmaengine: fsl-qdma: Add improvement
dmaengine: jz4780: Fix transfers being ACKed too soon
gcc-plugins: Fix build failures under Darwin host
MAINTAINERS: Update Stefan Wahren email address
netfilter: nf_tables: fix oops during rule dump
ARC: mm: SIGSEGV userspace trying to access kernel virtual memory
ARC: fix build warnings
ARM: dts: bcm: Add missing device_type = "memory" property
soc: bcm: brcmstb: biuctrl: Register writes require a barrier
soc: brcmstb: Fix error path for unsupported CPUs
ARM: dts: dra71x: Disable usb4_tm target module
ARM: dts: dra71x: Disable rtc target module
ARM: dts: dra76x: Disable usb4_tm target module
ARM: dts: dra76x: Disable rtc target module
ASoC: simple-card: Fix configuration of DAI format
ASoC: Intel: soc-acpi: Fix machine selection order
ASoC: rt5677-spi: Handle over reading when flipping bytes
ASoC: soc-dpm: fixup DAI active unbalance
pinctrl: intel: Clear interrupt status in mask/unmask callback
pinctrl: intel: Use GENMASK() consistently
parisc: Allow building 64-bit kernel without -mlong-calls compiler option
parisc: Kconfig: remove ARCH_DISCARD_MEMBLOCK
staging: wilc1000: Fix some double unlock bugs in wilc_wlan_cleanup()
staging: vc04_services: prevent integer overflow in create_pagelist()
Staging: vc04_services: Fix a couple error codes
staging: wlan-ng: fix adapter initialization failure
staging: kpc2000: double unlock in error handling in kpc_dma_transfer()
staging: kpc2000: Fix build error without CONFIG_UIO
staging: kpc2000: fix build error on xtensa
staging: erofs: set sb->s_root to NULL when failing from __getname()
ARM: imx: cpuidle-imx6sx: Restrict the SW2ISO increase to i.MX6SX
firmware: imx: SCU irq should ONLY be enabled after SCU IPC is ready
arm64: imx: Fix build error without CONFIG_SOC_BUS
ima: fix wrong signed policy requirement when not appraising
x86/ima: Check EFI_RUNTIME_SERVICES before using
stacktrace: Unbreak stack_trace_save_tsk_reliable()
HID: wacom: Sync INTUOSP2_BT touch state after each frame if necessary
HID: wacom: Correct button numbering 2nd-gen Intuos Pro over Bluetooth
HID: wacom: Send BTN_TOUCH in response to INTUOSP2_BT eraser contact
HID: wacom: Don't report anything prior to the tool entering range
HID: wacom: Don't set tool type until we're in range
ASoC: cs42xx8: Add regcache mask dirty
regulator: tps6507x: Fix boot regression due to testing wrong init_data pointer
ASoC: fsl_asrc: Fix the issue about unsupported rate
spi: bitbang: Fix NULL pointer dereference in spi_unregister_master
Input: elan_i2c - increment wakeup count if wake source
wireless: Skip directory when generating certificates
ASoC: ak4458: rstn_control - return a non-zero on error only
ASoC: soc-pcm: BE dai needs prepare when pause release after resume
ASoC: ak4458: add return value for ak4458_probe
ASoC : cs4265 : readable register too low
ASoC: SOF: fix error in verbose ipc command parsing
ASoC: SOF: fix race in FW boot timeout handling
ASoC: SOF: nocodec: fix undefined reference
iio: adc: ti-ads8688: fix timestamp is not updated in buffer
iio: dac: ds4422/ds4424 fix chip verification
HID: rmi: Use SET_REPORT request on control endpoint for Acer Switch 3 and 5
HID: logitech-hidpp: add support for the MX5500 keyboard
HID: logitech-dj: add support for the Logitech MX5500's Bluetooth Mini-Receiver
HID: i2c-hid: add iBall Aer3 to descriptor override
spi: Fix Raspberry Pi breakage
ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
bus: ti-sysc: Handle devices with no control registers
ARM: dts: Configure osc clock for d_can on am335x
iio: imu: mpu6050: Fix FIFO layout for ICM20602
lkdtm/bugs: Adjust recursion test to avoid elision
lkdtm/usercopy: Moves the KERNEL_DS test to non-canonical
iio: adc: ads124: avoid buffer overflow
iio: adc: modify NPCM ADC read reference voltage
Change-Id: I98c823993370027391cc21dfb239c3049f025136
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
3584 lines
95 KiB
C
3584 lines
95 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*******************************************************************************
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* Filename: target_core_configfs.c
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*
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* This file contains ConfigFS logic for the Generic Target Engine project.
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*
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* (c) Copyright 2008-2013 Datera, Inc.
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*
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* Nicholas A. Bellinger <nab@kernel.org>
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*
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* based on configfs Copyright (C) 2005 Oracle. All rights reserved.
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*
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****************************************************************************/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <generated/utsrelease.h>
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#include <linux/utsname.h>
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#include <linux/init.h>
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#include <linux/fs.h>
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#include <linux/namei.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include <linux/delay.h>
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#include <linux/unistd.h>
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#include <linux/string.h>
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#include <linux/parser.h>
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#include <linux/syscalls.h>
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#include <linux/configfs.h>
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#include <linux/spinlock.h>
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#include <target/target_core_base.h>
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#include <target/target_core_backend.h>
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#include <target/target_core_fabric.h>
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#include "target_core_internal.h"
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#include "target_core_alua.h"
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#include "target_core_pr.h"
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#include "target_core_rd.h"
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#include "target_core_xcopy.h"
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#define TB_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \
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static void target_core_setup_##_name##_cit(struct target_backend *tb) \
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{ \
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struct config_item_type *cit = &tb->tb_##_name##_cit; \
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\
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cit->ct_item_ops = _item_ops; \
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cit->ct_group_ops = _group_ops; \
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cit->ct_attrs = _attrs; \
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cit->ct_owner = tb->ops->owner; \
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pr_debug("Setup generic %s\n", __stringify(_name)); \
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}
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#define TB_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \
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static void target_core_setup_##_name##_cit(struct target_backend *tb) \
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{ \
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struct config_item_type *cit = &tb->tb_##_name##_cit; \
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\
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cit->ct_item_ops = _item_ops; \
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cit->ct_group_ops = _group_ops; \
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cit->ct_attrs = tb->ops->tb_##_name##_attrs; \
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cit->ct_owner = tb->ops->owner; \
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pr_debug("Setup generic %s\n", __stringify(_name)); \
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}
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extern struct t10_alua_lu_gp *default_lu_gp;
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static LIST_HEAD(g_tf_list);
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static DEFINE_MUTEX(g_tf_lock);
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static struct config_group target_core_hbagroup;
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static struct config_group alua_group;
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static struct config_group alua_lu_gps_group;
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static inline struct se_hba *
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item_to_hba(struct config_item *item)
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{
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return container_of(to_config_group(item), struct se_hba, hba_group);
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}
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/*
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* Attributes for /sys/kernel/config/target/
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*/
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static ssize_t target_core_item_version_show(struct config_item *item,
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char *page)
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{
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return sprintf(page, "Target Engine Core ConfigFS Infrastructure %s"
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" on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_VERSION,
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utsname()->sysname, utsname()->machine);
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}
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CONFIGFS_ATTR_RO(target_core_item_, version);
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char db_root[DB_ROOT_LEN] = DB_ROOT_DEFAULT;
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static char db_root_stage[DB_ROOT_LEN];
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static ssize_t target_core_item_dbroot_show(struct config_item *item,
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char *page)
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{
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return sprintf(page, "%s\n", db_root);
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}
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static ssize_t target_core_item_dbroot_store(struct config_item *item,
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const char *page, size_t count)
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{
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ssize_t read_bytes;
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struct file *fp;
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mutex_lock(&g_tf_lock);
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if (!list_empty(&g_tf_list)) {
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mutex_unlock(&g_tf_lock);
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pr_err("db_root: cannot be changed: target drivers registered");
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return -EINVAL;
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}
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if (count > (DB_ROOT_LEN - 1)) {
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mutex_unlock(&g_tf_lock);
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pr_err("db_root: count %d exceeds DB_ROOT_LEN-1: %u\n",
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(int)count, DB_ROOT_LEN - 1);
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return -EINVAL;
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}
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read_bytes = snprintf(db_root_stage, DB_ROOT_LEN, "%s", page);
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if (!read_bytes) {
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mutex_unlock(&g_tf_lock);
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return -EINVAL;
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}
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if (db_root_stage[read_bytes - 1] == '\n')
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db_root_stage[read_bytes - 1] = '\0';
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/* validate new db root before accepting it */
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fp = filp_open(db_root_stage, O_RDONLY, 0);
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if (IS_ERR(fp)) {
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mutex_unlock(&g_tf_lock);
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pr_err("db_root: cannot open: %s\n", db_root_stage);
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return -EINVAL;
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}
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if (!S_ISDIR(file_inode(fp)->i_mode)) {
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filp_close(fp, NULL);
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mutex_unlock(&g_tf_lock);
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pr_err("db_root: not a directory: %s\n", db_root_stage);
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return -EINVAL;
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}
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filp_close(fp, NULL);
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strncpy(db_root, db_root_stage, read_bytes);
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mutex_unlock(&g_tf_lock);
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pr_debug("Target_Core_ConfigFS: db_root set to %s\n", db_root);
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return read_bytes;
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}
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CONFIGFS_ATTR(target_core_item_, dbroot);
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static struct target_fabric_configfs *target_core_get_fabric(
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const char *name)
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{
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struct target_fabric_configfs *tf;
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if (!name)
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return NULL;
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mutex_lock(&g_tf_lock);
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list_for_each_entry(tf, &g_tf_list, tf_list) {
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const char *cmp_name = tf->tf_ops->fabric_alias;
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if (!cmp_name)
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cmp_name = tf->tf_ops->fabric_name;
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if (!strcmp(cmp_name, name)) {
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atomic_inc(&tf->tf_access_cnt);
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mutex_unlock(&g_tf_lock);
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return tf;
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}
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}
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mutex_unlock(&g_tf_lock);
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return NULL;
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}
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/*
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* Called from struct target_core_group_ops->make_group()
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*/
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static struct config_group *target_core_register_fabric(
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struct config_group *group,
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const char *name)
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{
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struct target_fabric_configfs *tf;
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int ret;
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pr_debug("Target_Core_ConfigFS: REGISTER -> group: %p name:"
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" %s\n", group, name);
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tf = target_core_get_fabric(name);
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if (!tf) {
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pr_debug("target_core_register_fabric() trying autoload for %s\n",
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name);
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/*
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* Below are some hardcoded request_module() calls to automatically
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* local fabric modules when the following is called:
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*
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* mkdir -p /sys/kernel/config/target/$MODULE_NAME
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*
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* Note that this does not limit which TCM fabric module can be
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* registered, but simply provids auto loading logic for modules with
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* mkdir(2) system calls with known TCM fabric modules.
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*/
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if (!strncmp(name, "iscsi", 5)) {
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/*
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* Automatically load the LIO Target fabric module when the
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* following is called:
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*
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* mkdir -p $CONFIGFS/target/iscsi
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*/
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ret = request_module("iscsi_target_mod");
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if (ret < 0) {
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pr_debug("request_module() failed for"
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" iscsi_target_mod.ko: %d\n", ret);
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return ERR_PTR(-EINVAL);
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}
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} else if (!strncmp(name, "loopback", 8)) {
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/*
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* Automatically load the tcm_loop fabric module when the
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* following is called:
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*
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* mkdir -p $CONFIGFS/target/loopback
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*/
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ret = request_module("tcm_loop");
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if (ret < 0) {
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pr_debug("request_module() failed for"
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" tcm_loop.ko: %d\n", ret);
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return ERR_PTR(-EINVAL);
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}
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}
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tf = target_core_get_fabric(name);
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}
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if (!tf) {
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pr_debug("target_core_get_fabric() failed for %s\n",
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name);
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return ERR_PTR(-EINVAL);
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}
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pr_debug("Target_Core_ConfigFS: REGISTER -> Located fabric:"
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" %s\n", tf->tf_ops->fabric_name);
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/*
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* On a successful target_core_get_fabric() look, the returned
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* struct target_fabric_configfs *tf will contain a usage reference.
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*/
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pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n",
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&tf->tf_wwn_cit);
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config_group_init_type_name(&tf->tf_group, name, &tf->tf_wwn_cit);
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config_group_init_type_name(&tf->tf_disc_group, "discovery_auth",
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&tf->tf_discovery_cit);
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configfs_add_default_group(&tf->tf_disc_group, &tf->tf_group);
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pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric: %s\n",
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config_item_name(&tf->tf_group.cg_item));
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return &tf->tf_group;
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}
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/*
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* Called from struct target_core_group_ops->drop_item()
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*/
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static void target_core_deregister_fabric(
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struct config_group *group,
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struct config_item *item)
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{
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struct target_fabric_configfs *tf = container_of(
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to_config_group(item), struct target_fabric_configfs, tf_group);
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pr_debug("Target_Core_ConfigFS: DEREGISTER -> Looking up %s in"
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" tf list\n", config_item_name(item));
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pr_debug("Target_Core_ConfigFS: DEREGISTER -> located fabric:"
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" %s\n", tf->tf_ops->fabric_name);
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atomic_dec(&tf->tf_access_cnt);
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pr_debug("Target_Core_ConfigFS: DEREGISTER -> Releasing ci"
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" %s\n", config_item_name(item));
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configfs_remove_default_groups(&tf->tf_group);
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config_item_put(item);
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}
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static struct configfs_group_operations target_core_fabric_group_ops = {
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.make_group = &target_core_register_fabric,
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.drop_item = &target_core_deregister_fabric,
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};
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/*
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* All item attributes appearing in /sys/kernel/target/ appear here.
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*/
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static struct configfs_attribute *target_core_fabric_item_attrs[] = {
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&target_core_item_attr_version,
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&target_core_item_attr_dbroot,
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NULL,
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};
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/*
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* Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/
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*/
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static const struct config_item_type target_core_fabrics_item = {
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.ct_group_ops = &target_core_fabric_group_ops,
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.ct_attrs = target_core_fabric_item_attrs,
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.ct_owner = THIS_MODULE,
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};
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static struct configfs_subsystem target_core_fabrics = {
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.su_group = {
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.cg_item = {
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.ci_namebuf = "target",
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.ci_type = &target_core_fabrics_item,
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},
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},
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};
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int target_depend_item(struct config_item *item)
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{
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return configfs_depend_item(&target_core_fabrics, item);
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}
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EXPORT_SYMBOL(target_depend_item);
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void target_undepend_item(struct config_item *item)
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{
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return configfs_undepend_item(item);
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}
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EXPORT_SYMBOL(target_undepend_item);
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/*##############################################################################
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// Start functions called by external Target Fabrics Modules
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//############################################################################*/
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static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo)
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{
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if (tfo->fabric_alias) {
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if (strlen(tfo->fabric_alias) >= TARGET_FABRIC_NAME_SIZE) {
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pr_err("Passed alias: %s exceeds "
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"TARGET_FABRIC_NAME_SIZE\n", tfo->fabric_alias);
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return -EINVAL;
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}
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}
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if (!tfo->fabric_name) {
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pr_err("Missing tfo->fabric_name\n");
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return -EINVAL;
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}
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if (strlen(tfo->fabric_name) >= TARGET_FABRIC_NAME_SIZE) {
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pr_err("Passed name: %s exceeds "
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"TARGET_FABRIC_NAME_SIZE\n", tfo->fabric_name);
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return -EINVAL;
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}
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if (!tfo->tpg_get_wwn) {
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pr_err("Missing tfo->tpg_get_wwn()\n");
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return -EINVAL;
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}
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if (!tfo->tpg_get_tag) {
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pr_err("Missing tfo->tpg_get_tag()\n");
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return -EINVAL;
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}
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if (!tfo->tpg_check_demo_mode) {
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pr_err("Missing tfo->tpg_check_demo_mode()\n");
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return -EINVAL;
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}
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if (!tfo->tpg_check_demo_mode_cache) {
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pr_err("Missing tfo->tpg_check_demo_mode_cache()\n");
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return -EINVAL;
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}
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if (!tfo->tpg_check_demo_mode_write_protect) {
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pr_err("Missing tfo->tpg_check_demo_mode_write_protect()\n");
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return -EINVAL;
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}
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if (!tfo->tpg_check_prod_mode_write_protect) {
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pr_err("Missing tfo->tpg_check_prod_mode_write_protect()\n");
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return -EINVAL;
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}
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if (!tfo->tpg_get_inst_index) {
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pr_err("Missing tfo->tpg_get_inst_index()\n");
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return -EINVAL;
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}
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if (!tfo->release_cmd) {
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pr_err("Missing tfo->release_cmd()\n");
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return -EINVAL;
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}
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if (!tfo->sess_get_index) {
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pr_err("Missing tfo->sess_get_index()\n");
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return -EINVAL;
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}
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if (!tfo->write_pending) {
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pr_err("Missing tfo->write_pending()\n");
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return -EINVAL;
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}
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if (!tfo->set_default_node_attributes) {
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pr_err("Missing tfo->set_default_node_attributes()\n");
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return -EINVAL;
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}
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if (!tfo->get_cmd_state) {
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pr_err("Missing tfo->get_cmd_state()\n");
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return -EINVAL;
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}
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if (!tfo->queue_data_in) {
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pr_err("Missing tfo->queue_data_in()\n");
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return -EINVAL;
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}
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if (!tfo->queue_status) {
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pr_err("Missing tfo->queue_status()\n");
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return -EINVAL;
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}
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if (!tfo->queue_tm_rsp) {
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pr_err("Missing tfo->queue_tm_rsp()\n");
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return -EINVAL;
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}
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if (!tfo->aborted_task) {
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pr_err("Missing tfo->aborted_task()\n");
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return -EINVAL;
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}
|
|
if (!tfo->check_stop_free) {
|
|
pr_err("Missing tfo->check_stop_free()\n");
|
|
return -EINVAL;
|
|
}
|
|
/*
|
|
* We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn()
|
|
* tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in
|
|
* target_core_fabric_configfs.c WWN+TPG group context code.
|
|
*/
|
|
if (!tfo->fabric_make_wwn) {
|
|
pr_err("Missing tfo->fabric_make_wwn()\n");
|
|
return -EINVAL;
|
|
}
|
|
if (!tfo->fabric_drop_wwn) {
|
|
pr_err("Missing tfo->fabric_drop_wwn()\n");
|
|
return -EINVAL;
|
|
}
|
|
if (!tfo->fabric_make_tpg) {
|
|
pr_err("Missing tfo->fabric_make_tpg()\n");
|
|
return -EINVAL;
|
|
}
|
|
if (!tfo->fabric_drop_tpg) {
|
|
pr_err("Missing tfo->fabric_drop_tpg()\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int target_register_template(const struct target_core_fabric_ops *fo)
|
|
{
|
|
struct target_fabric_configfs *tf;
|
|
int ret;
|
|
|
|
ret = target_fabric_tf_ops_check(fo);
|
|
if (ret)
|
|
return ret;
|
|
|
|
tf = kzalloc(sizeof(struct target_fabric_configfs), GFP_KERNEL);
|
|
if (!tf) {
|
|
pr_err("%s: could not allocate memory!\n", __func__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&tf->tf_list);
|
|
atomic_set(&tf->tf_access_cnt, 0);
|
|
tf->tf_ops = fo;
|
|
target_fabric_setup_cits(tf);
|
|
|
|
mutex_lock(&g_tf_lock);
|
|
list_add_tail(&tf->tf_list, &g_tf_list);
|
|
mutex_unlock(&g_tf_lock);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(target_register_template);
|
|
|
|
void target_unregister_template(const struct target_core_fabric_ops *fo)
|
|
{
|
|
struct target_fabric_configfs *t;
|
|
|
|
mutex_lock(&g_tf_lock);
|
|
list_for_each_entry(t, &g_tf_list, tf_list) {
|
|
if (!strcmp(t->tf_ops->fabric_name, fo->fabric_name)) {
|
|
BUG_ON(atomic_read(&t->tf_access_cnt));
|
|
list_del(&t->tf_list);
|
|
mutex_unlock(&g_tf_lock);
|
|
/*
|
|
* Wait for any outstanding fabric se_deve_entry->rcu_head
|
|
* callbacks to complete post kfree_rcu(), before allowing
|
|
* fabric driver unload of TFO->module to proceed.
|
|
*/
|
|
rcu_barrier();
|
|
kfree(t);
|
|
return;
|
|
}
|
|
}
|
|
mutex_unlock(&g_tf_lock);
|
|
}
|
|
EXPORT_SYMBOL(target_unregister_template);
|
|
|
|
/*##############################################################################
|
|
// Stop functions called by external Target Fabrics Modules
|
|
//############################################################################*/
|
|
|
|
static inline struct se_dev_attrib *to_attrib(struct config_item *item)
|
|
{
|
|
return container_of(to_config_group(item), struct se_dev_attrib,
|
|
da_group);
|
|
}
|
|
|
|
/* Start functions for struct config_item_type tb_dev_attrib_cit */
|
|
#define DEF_CONFIGFS_ATTRIB_SHOW(_name) \
|
|
static ssize_t _name##_show(struct config_item *item, char *page) \
|
|
{ \
|
|
return snprintf(page, PAGE_SIZE, "%u\n", to_attrib(item)->_name); \
|
|
}
|
|
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_model_alias);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_dpo);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_write);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_read);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_write_cache);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_ua_intlck_ctrl);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_tas);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpu);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpws);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_caw);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_3pc);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_pr);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_type);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(hw_pi_prot_type);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_verify);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(enforce_pr_isids);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(is_nonrot);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(emulate_rest_reord);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(force_pr_aptpl);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(hw_block_size);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(block_size);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(hw_max_sectors);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(optimal_sectors);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(hw_queue_depth);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(queue_depth);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_lba_count);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_block_desc_count);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity_alignment);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(unmap_zeroes_data);
|
|
DEF_CONFIGFS_ATTRIB_SHOW(max_write_same_len);
|
|
|
|
#define DEF_CONFIGFS_ATTRIB_STORE_U32(_name) \
|
|
static ssize_t _name##_store(struct config_item *item, const char *page,\
|
|
size_t count) \
|
|
{ \
|
|
struct se_dev_attrib *da = to_attrib(item); \
|
|
u32 val; \
|
|
int ret; \
|
|
\
|
|
ret = kstrtou32(page, 0, &val); \
|
|
if (ret < 0) \
|
|
return ret; \
|
|
da->_name = val; \
|
|
return count; \
|
|
}
|
|
|
|
DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_lba_count);
|
|
DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_block_desc_count);
|
|
DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity);
|
|
DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity_alignment);
|
|
DEF_CONFIGFS_ATTRIB_STORE_U32(max_write_same_len);
|
|
|
|
#define DEF_CONFIGFS_ATTRIB_STORE_BOOL(_name) \
|
|
static ssize_t _name##_store(struct config_item *item, const char *page, \
|
|
size_t count) \
|
|
{ \
|
|
struct se_dev_attrib *da = to_attrib(item); \
|
|
bool flag; \
|
|
int ret; \
|
|
\
|
|
ret = strtobool(page, &flag); \
|
|
if (ret < 0) \
|
|
return ret; \
|
|
da->_name = flag; \
|
|
return count; \
|
|
}
|
|
|
|
DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_fua_write);
|
|
DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_caw);
|
|
DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_3pc);
|
|
DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_pr);
|
|
DEF_CONFIGFS_ATTRIB_STORE_BOOL(enforce_pr_isids);
|
|
DEF_CONFIGFS_ATTRIB_STORE_BOOL(is_nonrot);
|
|
|
|
#define DEF_CONFIGFS_ATTRIB_STORE_STUB(_name) \
|
|
static ssize_t _name##_store(struct config_item *item, const char *page,\
|
|
size_t count) \
|
|
{ \
|
|
printk_once(KERN_WARNING \
|
|
"ignoring deprecated %s attribute\n", \
|
|
__stringify(_name)); \
|
|
return count; \
|
|
}
|
|
|
|
DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_dpo);
|
|
DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_fua_read);
|
|
|
|
static void dev_set_t10_wwn_model_alias(struct se_device *dev)
|
|
{
|
|
const char *configname;
|
|
|
|
configname = config_item_name(&dev->dev_group.cg_item);
|
|
if (strlen(configname) >= INQUIRY_MODEL_LEN) {
|
|
pr_warn("dev[%p]: Backstore name '%s' is too long for "
|
|
"INQUIRY_MODEL, truncating to 15 characters\n", dev,
|
|
configname);
|
|
}
|
|
/*
|
|
* XXX We can't use sizeof(dev->t10_wwn.model) (INQUIRY_MODEL_LEN + 1)
|
|
* here without potentially breaking existing setups, so continue to
|
|
* truncate one byte shorter than what can be carried in INQUIRY.
|
|
*/
|
|
strlcpy(dev->t10_wwn.model, configname, INQUIRY_MODEL_LEN);
|
|
}
|
|
|
|
static ssize_t emulate_model_alias_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
struct se_device *dev = da->da_dev;
|
|
bool flag;
|
|
int ret;
|
|
|
|
if (dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change model alias"
|
|
" while export_count is %d\n",
|
|
dev, dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
BUILD_BUG_ON(sizeof(dev->t10_wwn.model) != INQUIRY_MODEL_LEN + 1);
|
|
if (flag) {
|
|
dev_set_t10_wwn_model_alias(dev);
|
|
} else {
|
|
strlcpy(dev->t10_wwn.model, dev->transport->inquiry_prod,
|
|
sizeof(dev->t10_wwn.model));
|
|
}
|
|
da->emulate_model_alias = flag;
|
|
return count;
|
|
}
|
|
|
|
static ssize_t emulate_write_cache_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (flag && da->da_dev->transport->get_write_cache) {
|
|
pr_err("emulate_write_cache not supported for this device\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
da->emulate_write_cache = flag;
|
|
pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
|
|
da->da_dev, flag);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t emulate_ua_intlck_ctrl_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
u32 val;
|
|
int ret;
|
|
|
|
ret = kstrtou32(page, 0, &val);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (val != 0 && val != 1 && val != 2) {
|
|
pr_err("Illegal value %d\n", val);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (da->da_dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change SE Device"
|
|
" UA_INTRLCK_CTRL while export_count is %d\n",
|
|
da->da_dev, da->da_dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
da->emulate_ua_intlck_ctrl = val;
|
|
pr_debug("dev[%p]: SE Device UA_INTRLCK_CTRL flag: %d\n",
|
|
da->da_dev, val);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t emulate_tas_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (da->da_dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change SE Device TAS while"
|
|
" export_count is %d\n",
|
|
da->da_dev, da->da_dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
da->emulate_tas = flag;
|
|
pr_debug("dev[%p]: SE Device TASK_ABORTED status bit: %s\n",
|
|
da->da_dev, flag ? "Enabled" : "Disabled");
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t emulate_tpu_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/*
|
|
* We expect this value to be non-zero when generic Block Layer
|
|
* Discard supported is detected iblock_create_virtdevice().
|
|
*/
|
|
if (flag && !da->max_unmap_block_desc_count) {
|
|
pr_err("Generic Block Discard not supported\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
da->emulate_tpu = flag;
|
|
pr_debug("dev[%p]: SE Device Thin Provisioning UNMAP bit: %d\n",
|
|
da->da_dev, flag);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t emulate_tpws_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/*
|
|
* We expect this value to be non-zero when generic Block Layer
|
|
* Discard supported is detected iblock_create_virtdevice().
|
|
*/
|
|
if (flag && !da->max_unmap_block_desc_count) {
|
|
pr_err("Generic Block Discard not supported\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
da->emulate_tpws = flag;
|
|
pr_debug("dev[%p]: SE Device Thin Provisioning WRITE_SAME: %d\n",
|
|
da->da_dev, flag);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t pi_prot_type_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
int old_prot = da->pi_prot_type, ret;
|
|
struct se_device *dev = da->da_dev;
|
|
u32 flag;
|
|
|
|
ret = kstrtou32(page, 0, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (flag != 0 && flag != 1 && flag != 2 && flag != 3) {
|
|
pr_err("Illegal value %d for pi_prot_type\n", flag);
|
|
return -EINVAL;
|
|
}
|
|
if (flag == 2) {
|
|
pr_err("DIF TYPE2 protection currently not supported\n");
|
|
return -ENOSYS;
|
|
}
|
|
if (da->hw_pi_prot_type) {
|
|
pr_warn("DIF protection enabled on underlying hardware,"
|
|
" ignoring\n");
|
|
return count;
|
|
}
|
|
if (!dev->transport->init_prot || !dev->transport->free_prot) {
|
|
/* 0 is only allowed value for non-supporting backends */
|
|
if (flag == 0)
|
|
return count;
|
|
|
|
pr_err("DIF protection not supported by backend: %s\n",
|
|
dev->transport->name);
|
|
return -ENOSYS;
|
|
}
|
|
if (!target_dev_configured(dev)) {
|
|
pr_err("DIF protection requires device to be configured\n");
|
|
return -ENODEV;
|
|
}
|
|
if (dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change SE Device PROT type while"
|
|
" export_count is %d\n", dev, dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
da->pi_prot_type = flag;
|
|
|
|
if (flag && !old_prot) {
|
|
ret = dev->transport->init_prot(dev);
|
|
if (ret) {
|
|
da->pi_prot_type = old_prot;
|
|
da->pi_prot_verify = (bool) da->pi_prot_type;
|
|
return ret;
|
|
}
|
|
|
|
} else if (!flag && old_prot) {
|
|
dev->transport->free_prot(dev);
|
|
}
|
|
|
|
da->pi_prot_verify = (bool) da->pi_prot_type;
|
|
pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag);
|
|
return count;
|
|
}
|
|
|
|
/* always zero, but attr needs to remain RW to avoid userspace breakage */
|
|
static ssize_t pi_prot_format_show(struct config_item *item, char *page)
|
|
{
|
|
return snprintf(page, PAGE_SIZE, "0\n");
|
|
}
|
|
|
|
static ssize_t pi_prot_format_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
struct se_device *dev = da->da_dev;
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!flag)
|
|
return count;
|
|
|
|
if (!dev->transport->format_prot) {
|
|
pr_err("DIF protection format not supported by backend %s\n",
|
|
dev->transport->name);
|
|
return -ENOSYS;
|
|
}
|
|
if (!target_dev_configured(dev)) {
|
|
pr_err("DIF protection format requires device to be configured\n");
|
|
return -ENODEV;
|
|
}
|
|
if (dev->export_count) {
|
|
pr_err("dev[%p]: Unable to format SE Device PROT type while"
|
|
" export_count is %d\n", dev, dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = dev->transport->format_prot(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
pr_debug("dev[%p]: SE Device Protection Format complete\n", dev);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t pi_prot_verify_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!flag) {
|
|
da->pi_prot_verify = flag;
|
|
return count;
|
|
}
|
|
if (da->hw_pi_prot_type) {
|
|
pr_warn("DIF protection enabled on underlying hardware,"
|
|
" ignoring\n");
|
|
return count;
|
|
}
|
|
if (!da->pi_prot_type) {
|
|
pr_warn("DIF protection not supported by backend, ignoring\n");
|
|
return count;
|
|
}
|
|
da->pi_prot_verify = flag;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t force_pr_aptpl_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (da->da_dev->export_count) {
|
|
pr_err("dev[%p]: Unable to set force_pr_aptpl while"
|
|
" export_count is %d\n",
|
|
da->da_dev, da->da_dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
da->force_pr_aptpl = flag;
|
|
pr_debug("dev[%p]: SE Device force_pr_aptpl: %d\n", da->da_dev, flag);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t emulate_rest_reord_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (flag != 0) {
|
|
printk(KERN_ERR "dev[%p]: SE Device emulation of restricted"
|
|
" reordering not implemented\n", da->da_dev);
|
|
return -ENOSYS;
|
|
}
|
|
da->emulate_rest_reord = flag;
|
|
pr_debug("dev[%p]: SE Device emulate_rest_reord: %d\n",
|
|
da->da_dev, flag);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t unmap_zeroes_data_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
bool flag;
|
|
int ret;
|
|
|
|
ret = strtobool(page, &flag);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (da->da_dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change SE Device"
|
|
" unmap_zeroes_data while export_count is %d\n",
|
|
da->da_dev, da->da_dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
/*
|
|
* We expect this value to be non-zero when generic Block Layer
|
|
* Discard supported is detected iblock_configure_device().
|
|
*/
|
|
if (flag && !da->max_unmap_block_desc_count) {
|
|
pr_err("dev[%p]: Thin Provisioning LBPRZ will not be set"
|
|
" because max_unmap_block_desc_count is zero\n",
|
|
da->da_dev);
|
|
return -ENOSYS;
|
|
}
|
|
da->unmap_zeroes_data = flag;
|
|
pr_debug("dev[%p]: SE Device Thin Provisioning LBPRZ bit: %d\n",
|
|
da->da_dev, flag);
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* Note, this can only be called on unexported SE Device Object.
|
|
*/
|
|
static ssize_t queue_depth_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
struct se_device *dev = da->da_dev;
|
|
u32 val;
|
|
int ret;
|
|
|
|
ret = kstrtou32(page, 0, &val);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change SE Device TCQ while"
|
|
" export_count is %d\n",
|
|
dev, dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
if (!val) {
|
|
pr_err("dev[%p]: Illegal ZERO value for queue_depth\n", dev);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (val > dev->dev_attrib.queue_depth) {
|
|
if (val > dev->dev_attrib.hw_queue_depth) {
|
|
pr_err("dev[%p]: Passed queue_depth:"
|
|
" %u exceeds TCM/SE_Device MAX"
|
|
" TCQ: %u\n", dev, val,
|
|
dev->dev_attrib.hw_queue_depth);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
da->queue_depth = dev->queue_depth = val;
|
|
pr_debug("dev[%p]: SE Device TCQ Depth changed to: %u\n", dev, val);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t optimal_sectors_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
u32 val;
|
|
int ret;
|
|
|
|
ret = kstrtou32(page, 0, &val);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (da->da_dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change SE Device"
|
|
" optimal_sectors while export_count is %d\n",
|
|
da->da_dev, da->da_dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
if (val > da->hw_max_sectors) {
|
|
pr_err("dev[%p]: Passed optimal_sectors %u cannot be"
|
|
" greater than hw_max_sectors: %u\n",
|
|
da->da_dev, val, da->hw_max_sectors);
|
|
return -EINVAL;
|
|
}
|
|
|
|
da->optimal_sectors = val;
|
|
pr_debug("dev[%p]: SE Device optimal_sectors changed to %u\n",
|
|
da->da_dev, val);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t block_size_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
u32 val;
|
|
int ret;
|
|
|
|
ret = kstrtou32(page, 0, &val);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (da->da_dev->export_count) {
|
|
pr_err("dev[%p]: Unable to change SE Device block_size"
|
|
" while export_count is %d\n",
|
|
da->da_dev, da->da_dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (val != 512 && val != 1024 && val != 2048 && val != 4096) {
|
|
pr_err("dev[%p]: Illegal value for block_device: %u"
|
|
" for SE device, must be 512, 1024, 2048 or 4096\n",
|
|
da->da_dev, val);
|
|
return -EINVAL;
|
|
}
|
|
|
|
da->block_size = val;
|
|
if (da->max_bytes_per_io)
|
|
da->hw_max_sectors = da->max_bytes_per_io / val;
|
|
|
|
pr_debug("dev[%p]: SE Device block_size changed to %u\n",
|
|
da->da_dev, val);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t alua_support_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
u8 flags = da->da_dev->transport->transport_flags;
|
|
|
|
return snprintf(page, PAGE_SIZE, "%d\n",
|
|
flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA ? 0 : 1);
|
|
}
|
|
|
|
static ssize_t pgr_support_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_dev_attrib *da = to_attrib(item);
|
|
u8 flags = da->da_dev->transport->transport_flags;
|
|
|
|
return snprintf(page, PAGE_SIZE, "%d\n",
|
|
flags & TRANSPORT_FLAG_PASSTHROUGH_PGR ? 0 : 1);
|
|
}
|
|
|
|
CONFIGFS_ATTR(, emulate_model_alias);
|
|
CONFIGFS_ATTR(, emulate_dpo);
|
|
CONFIGFS_ATTR(, emulate_fua_write);
|
|
CONFIGFS_ATTR(, emulate_fua_read);
|
|
CONFIGFS_ATTR(, emulate_write_cache);
|
|
CONFIGFS_ATTR(, emulate_ua_intlck_ctrl);
|
|
CONFIGFS_ATTR(, emulate_tas);
|
|
CONFIGFS_ATTR(, emulate_tpu);
|
|
CONFIGFS_ATTR(, emulate_tpws);
|
|
CONFIGFS_ATTR(, emulate_caw);
|
|
CONFIGFS_ATTR(, emulate_3pc);
|
|
CONFIGFS_ATTR(, emulate_pr);
|
|
CONFIGFS_ATTR(, pi_prot_type);
|
|
CONFIGFS_ATTR_RO(, hw_pi_prot_type);
|
|
CONFIGFS_ATTR(, pi_prot_format);
|
|
CONFIGFS_ATTR(, pi_prot_verify);
|
|
CONFIGFS_ATTR(, enforce_pr_isids);
|
|
CONFIGFS_ATTR(, is_nonrot);
|
|
CONFIGFS_ATTR(, emulate_rest_reord);
|
|
CONFIGFS_ATTR(, force_pr_aptpl);
|
|
CONFIGFS_ATTR_RO(, hw_block_size);
|
|
CONFIGFS_ATTR(, block_size);
|
|
CONFIGFS_ATTR_RO(, hw_max_sectors);
|
|
CONFIGFS_ATTR(, optimal_sectors);
|
|
CONFIGFS_ATTR_RO(, hw_queue_depth);
|
|
CONFIGFS_ATTR(, queue_depth);
|
|
CONFIGFS_ATTR(, max_unmap_lba_count);
|
|
CONFIGFS_ATTR(, max_unmap_block_desc_count);
|
|
CONFIGFS_ATTR(, unmap_granularity);
|
|
CONFIGFS_ATTR(, unmap_granularity_alignment);
|
|
CONFIGFS_ATTR(, unmap_zeroes_data);
|
|
CONFIGFS_ATTR(, max_write_same_len);
|
|
CONFIGFS_ATTR_RO(, alua_support);
|
|
CONFIGFS_ATTR_RO(, pgr_support);
|
|
|
|
/*
|
|
* dev_attrib attributes for devices using the target core SBC/SPC
|
|
* interpreter. Any backend using spc_parse_cdb should be using
|
|
* these.
|
|
*/
|
|
struct configfs_attribute *sbc_attrib_attrs[] = {
|
|
&attr_emulate_model_alias,
|
|
&attr_emulate_dpo,
|
|
&attr_emulate_fua_write,
|
|
&attr_emulate_fua_read,
|
|
&attr_emulate_write_cache,
|
|
&attr_emulate_ua_intlck_ctrl,
|
|
&attr_emulate_tas,
|
|
&attr_emulate_tpu,
|
|
&attr_emulate_tpws,
|
|
&attr_emulate_caw,
|
|
&attr_emulate_3pc,
|
|
&attr_emulate_pr,
|
|
&attr_pi_prot_type,
|
|
&attr_hw_pi_prot_type,
|
|
&attr_pi_prot_format,
|
|
&attr_pi_prot_verify,
|
|
&attr_enforce_pr_isids,
|
|
&attr_is_nonrot,
|
|
&attr_emulate_rest_reord,
|
|
&attr_force_pr_aptpl,
|
|
&attr_hw_block_size,
|
|
&attr_block_size,
|
|
&attr_hw_max_sectors,
|
|
&attr_optimal_sectors,
|
|
&attr_hw_queue_depth,
|
|
&attr_queue_depth,
|
|
&attr_max_unmap_lba_count,
|
|
&attr_max_unmap_block_desc_count,
|
|
&attr_unmap_granularity,
|
|
&attr_unmap_granularity_alignment,
|
|
&attr_unmap_zeroes_data,
|
|
&attr_max_write_same_len,
|
|
&attr_alua_support,
|
|
&attr_pgr_support,
|
|
NULL,
|
|
};
|
|
EXPORT_SYMBOL(sbc_attrib_attrs);
|
|
|
|
/*
|
|
* Minimal dev_attrib attributes for devices passing through CDBs.
|
|
* In this case we only provide a few read-only attributes for
|
|
* backwards compatibility.
|
|
*/
|
|
struct configfs_attribute *passthrough_attrib_attrs[] = {
|
|
&attr_hw_pi_prot_type,
|
|
&attr_hw_block_size,
|
|
&attr_hw_max_sectors,
|
|
&attr_hw_queue_depth,
|
|
&attr_alua_support,
|
|
&attr_pgr_support,
|
|
NULL,
|
|
};
|
|
EXPORT_SYMBOL(passthrough_attrib_attrs);
|
|
|
|
TB_CIT_SETUP_DRV(dev_attrib, NULL, NULL);
|
|
TB_CIT_SETUP_DRV(dev_action, NULL, NULL);
|
|
|
|
/* End functions for struct config_item_type tb_dev_attrib_cit */
|
|
|
|
/* Start functions for struct config_item_type tb_dev_wwn_cit */
|
|
|
|
static struct t10_wwn *to_t10_wwn(struct config_item *item)
|
|
{
|
|
return container_of(to_config_group(item), struct t10_wwn, t10_wwn_group);
|
|
}
|
|
|
|
static ssize_t target_check_inquiry_data(char *buf)
|
|
{
|
|
size_t len;
|
|
int i;
|
|
|
|
len = strlen(buf);
|
|
|
|
/*
|
|
* SPC 4.3.1:
|
|
* ASCII data fields shall contain only ASCII printable characters
|
|
* (i.e., code values 20h to 7Eh) and may be terminated with one or
|
|
* more ASCII null (00h) characters.
|
|
*/
|
|
for (i = 0; i < len; i++) {
|
|
if (buf[i] < 0x20 || buf[i] > 0x7E) {
|
|
pr_err("Emulated T10 Inquiry Data contains non-ASCII-printable characters\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/*
|
|
* STANDARD and VPD page 0x83 T10 Vendor Identification
|
|
*/
|
|
static ssize_t target_wwn_vendor_id_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return sprintf(page, "%s\n", &to_t10_wwn(item)->vendor[0]);
|
|
}
|
|
|
|
static ssize_t target_wwn_vendor_id_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct t10_wwn *t10_wwn = to_t10_wwn(item);
|
|
struct se_device *dev = t10_wwn->t10_dev;
|
|
/* +2 to allow for a trailing (stripped) '\n' and null-terminator */
|
|
unsigned char buf[INQUIRY_VENDOR_LEN + 2];
|
|
char *stripped = NULL;
|
|
size_t len;
|
|
ssize_t ret;
|
|
|
|
len = strlcpy(buf, page, sizeof(buf));
|
|
if (len < sizeof(buf)) {
|
|
/* Strip any newline added from userspace. */
|
|
stripped = strstrip(buf);
|
|
len = strlen(stripped);
|
|
}
|
|
if (len > INQUIRY_VENDOR_LEN) {
|
|
pr_err("Emulated T10 Vendor Identification exceeds"
|
|
" INQUIRY_VENDOR_LEN: " __stringify(INQUIRY_VENDOR_LEN)
|
|
"\n");
|
|
return -EOVERFLOW;
|
|
}
|
|
|
|
ret = target_check_inquiry_data(stripped);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/*
|
|
* Check to see if any active exports exist. If they do exist, fail
|
|
* here as changing this information on the fly (underneath the
|
|
* initiator side OS dependent multipath code) could cause negative
|
|
* effects.
|
|
*/
|
|
if (dev->export_count) {
|
|
pr_err("Unable to set T10 Vendor Identification while"
|
|
" active %d exports exist\n", dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
BUILD_BUG_ON(sizeof(dev->t10_wwn.vendor) != INQUIRY_VENDOR_LEN + 1);
|
|
strlcpy(dev->t10_wwn.vendor, stripped, sizeof(dev->t10_wwn.vendor));
|
|
|
|
pr_debug("Target_Core_ConfigFS: Set emulated T10 Vendor Identification:"
|
|
" %s\n", dev->t10_wwn.vendor);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_wwn_product_id_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return sprintf(page, "%s\n", &to_t10_wwn(item)->model[0]);
|
|
}
|
|
|
|
static ssize_t target_wwn_product_id_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct t10_wwn *t10_wwn = to_t10_wwn(item);
|
|
struct se_device *dev = t10_wwn->t10_dev;
|
|
/* +2 to allow for a trailing (stripped) '\n' and null-terminator */
|
|
unsigned char buf[INQUIRY_MODEL_LEN + 2];
|
|
char *stripped = NULL;
|
|
size_t len;
|
|
ssize_t ret;
|
|
|
|
len = strlcpy(buf, page, sizeof(buf));
|
|
if (len < sizeof(buf)) {
|
|
/* Strip any newline added from userspace. */
|
|
stripped = strstrip(buf);
|
|
len = strlen(stripped);
|
|
}
|
|
if (len > INQUIRY_MODEL_LEN) {
|
|
pr_err("Emulated T10 Vendor exceeds INQUIRY_MODEL_LEN: "
|
|
__stringify(INQUIRY_MODEL_LEN)
|
|
"\n");
|
|
return -EOVERFLOW;
|
|
}
|
|
|
|
ret = target_check_inquiry_data(stripped);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/*
|
|
* Check to see if any active exports exist. If they do exist, fail
|
|
* here as changing this information on the fly (underneath the
|
|
* initiator side OS dependent multipath code) could cause negative
|
|
* effects.
|
|
*/
|
|
if (dev->export_count) {
|
|
pr_err("Unable to set T10 Model while active %d exports exist\n",
|
|
dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
BUILD_BUG_ON(sizeof(dev->t10_wwn.model) != INQUIRY_MODEL_LEN + 1);
|
|
strlcpy(dev->t10_wwn.model, stripped, sizeof(dev->t10_wwn.model));
|
|
|
|
pr_debug("Target_Core_ConfigFS: Set emulated T10 Model Identification: %s\n",
|
|
dev->t10_wwn.model);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_wwn_revision_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return sprintf(page, "%s\n", &to_t10_wwn(item)->revision[0]);
|
|
}
|
|
|
|
static ssize_t target_wwn_revision_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct t10_wwn *t10_wwn = to_t10_wwn(item);
|
|
struct se_device *dev = t10_wwn->t10_dev;
|
|
/* +2 to allow for a trailing (stripped) '\n' and null-terminator */
|
|
unsigned char buf[INQUIRY_REVISION_LEN + 2];
|
|
char *stripped = NULL;
|
|
size_t len;
|
|
ssize_t ret;
|
|
|
|
len = strlcpy(buf, page, sizeof(buf));
|
|
if (len < sizeof(buf)) {
|
|
/* Strip any newline added from userspace. */
|
|
stripped = strstrip(buf);
|
|
len = strlen(stripped);
|
|
}
|
|
if (len > INQUIRY_REVISION_LEN) {
|
|
pr_err("Emulated T10 Revision exceeds INQUIRY_REVISION_LEN: "
|
|
__stringify(INQUIRY_REVISION_LEN)
|
|
"\n");
|
|
return -EOVERFLOW;
|
|
}
|
|
|
|
ret = target_check_inquiry_data(stripped);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/*
|
|
* Check to see if any active exports exist. If they do exist, fail
|
|
* here as changing this information on the fly (underneath the
|
|
* initiator side OS dependent multipath code) could cause negative
|
|
* effects.
|
|
*/
|
|
if (dev->export_count) {
|
|
pr_err("Unable to set T10 Revision while active %d exports exist\n",
|
|
dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
BUILD_BUG_ON(sizeof(dev->t10_wwn.revision) != INQUIRY_REVISION_LEN + 1);
|
|
strlcpy(dev->t10_wwn.revision, stripped, sizeof(dev->t10_wwn.revision));
|
|
|
|
pr_debug("Target_Core_ConfigFS: Set emulated T10 Revision: %s\n",
|
|
dev->t10_wwn.revision);
|
|
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* VPD page 0x80 Unit serial
|
|
*/
|
|
static ssize_t target_wwn_vpd_unit_serial_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return sprintf(page, "T10 VPD Unit Serial Number: %s\n",
|
|
&to_t10_wwn(item)->unit_serial[0]);
|
|
}
|
|
|
|
static ssize_t target_wwn_vpd_unit_serial_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct t10_wwn *t10_wwn = to_t10_wwn(item);
|
|
struct se_device *dev = t10_wwn->t10_dev;
|
|
unsigned char buf[INQUIRY_VPD_SERIAL_LEN];
|
|
|
|
/*
|
|
* If Linux/SCSI subsystem_api_t plugin got a VPD Unit Serial
|
|
* from the struct scsi_device level firmware, do not allow
|
|
* VPD Unit Serial to be emulated.
|
|
*
|
|
* Note this struct scsi_device could also be emulating VPD
|
|
* information from its drivers/scsi LLD. But for now we assume
|
|
* it is doing 'the right thing' wrt a world wide unique
|
|
* VPD Unit Serial Number that OS dependent multipath can depend on.
|
|
*/
|
|
if (dev->dev_flags & DF_FIRMWARE_VPD_UNIT_SERIAL) {
|
|
pr_err("Underlying SCSI device firmware provided VPD"
|
|
" Unit Serial, ignoring request\n");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (strlen(page) >= INQUIRY_VPD_SERIAL_LEN) {
|
|
pr_err("Emulated VPD Unit Serial exceeds"
|
|
" INQUIRY_VPD_SERIAL_LEN: %d\n", INQUIRY_VPD_SERIAL_LEN);
|
|
return -EOVERFLOW;
|
|
}
|
|
/*
|
|
* Check to see if any active $FABRIC_MOD exports exist. If they
|
|
* do exist, fail here as changing this information on the fly
|
|
* (underneath the initiator side OS dependent multipath code)
|
|
* could cause negative effects.
|
|
*/
|
|
if (dev->export_count) {
|
|
pr_err("Unable to set VPD Unit Serial while"
|
|
" active %d $FABRIC_MOD exports exist\n",
|
|
dev->export_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* This currently assumes ASCII encoding for emulated VPD Unit Serial.
|
|
*
|
|
* Also, strip any newline added from the userspace
|
|
* echo $UUID > $TARGET/$HBA/$STORAGE_OBJECT/wwn/vpd_unit_serial
|
|
*/
|
|
memset(buf, 0, INQUIRY_VPD_SERIAL_LEN);
|
|
snprintf(buf, INQUIRY_VPD_SERIAL_LEN, "%s", page);
|
|
snprintf(dev->t10_wwn.unit_serial, INQUIRY_VPD_SERIAL_LEN,
|
|
"%s", strstrip(buf));
|
|
dev->dev_flags |= DF_EMULATED_VPD_UNIT_SERIAL;
|
|
|
|
pr_debug("Target_Core_ConfigFS: Set emulated VPD Unit Serial:"
|
|
" %s\n", dev->t10_wwn.unit_serial);
|
|
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* VPD page 0x83 Protocol Identifier
|
|
*/
|
|
static ssize_t target_wwn_vpd_protocol_identifier_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct t10_wwn *t10_wwn = to_t10_wwn(item);
|
|
struct t10_vpd *vpd;
|
|
unsigned char buf[VPD_TMP_BUF_SIZE];
|
|
ssize_t len = 0;
|
|
|
|
memset(buf, 0, VPD_TMP_BUF_SIZE);
|
|
|
|
spin_lock(&t10_wwn->t10_vpd_lock);
|
|
list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) {
|
|
if (!vpd->protocol_identifier_set)
|
|
continue;
|
|
|
|
transport_dump_vpd_proto_id(vpd, buf, VPD_TMP_BUF_SIZE);
|
|
|
|
if (len + strlen(buf) >= PAGE_SIZE)
|
|
break;
|
|
|
|
len += sprintf(page+len, "%s", buf);
|
|
}
|
|
spin_unlock(&t10_wwn->t10_vpd_lock);
|
|
|
|
return len;
|
|
}
|
|
|
|
/*
|
|
* Generic wrapper for dumping VPD identifiers by association.
|
|
*/
|
|
#define DEF_DEV_WWN_ASSOC_SHOW(_name, _assoc) \
|
|
static ssize_t target_wwn_##_name##_show(struct config_item *item, \
|
|
char *page) \
|
|
{ \
|
|
struct t10_wwn *t10_wwn = to_t10_wwn(item); \
|
|
struct t10_vpd *vpd; \
|
|
unsigned char buf[VPD_TMP_BUF_SIZE]; \
|
|
ssize_t len = 0; \
|
|
\
|
|
spin_lock(&t10_wwn->t10_vpd_lock); \
|
|
list_for_each_entry(vpd, &t10_wwn->t10_vpd_list, vpd_list) { \
|
|
if (vpd->association != _assoc) \
|
|
continue; \
|
|
\
|
|
memset(buf, 0, VPD_TMP_BUF_SIZE); \
|
|
transport_dump_vpd_assoc(vpd, buf, VPD_TMP_BUF_SIZE); \
|
|
if (len + strlen(buf) >= PAGE_SIZE) \
|
|
break; \
|
|
len += sprintf(page+len, "%s", buf); \
|
|
\
|
|
memset(buf, 0, VPD_TMP_BUF_SIZE); \
|
|
transport_dump_vpd_ident_type(vpd, buf, VPD_TMP_BUF_SIZE); \
|
|
if (len + strlen(buf) >= PAGE_SIZE) \
|
|
break; \
|
|
len += sprintf(page+len, "%s", buf); \
|
|
\
|
|
memset(buf, 0, VPD_TMP_BUF_SIZE); \
|
|
transport_dump_vpd_ident(vpd, buf, VPD_TMP_BUF_SIZE); \
|
|
if (len + strlen(buf) >= PAGE_SIZE) \
|
|
break; \
|
|
len += sprintf(page+len, "%s", buf); \
|
|
} \
|
|
spin_unlock(&t10_wwn->t10_vpd_lock); \
|
|
\
|
|
return len; \
|
|
}
|
|
|
|
/* VPD page 0x83 Association: Logical Unit */
|
|
DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_logical_unit, 0x00);
|
|
/* VPD page 0x83 Association: Target Port */
|
|
DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_target_port, 0x10);
|
|
/* VPD page 0x83 Association: SCSI Target Device */
|
|
DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_scsi_target_device, 0x20);
|
|
|
|
CONFIGFS_ATTR(target_wwn_, vendor_id);
|
|
CONFIGFS_ATTR(target_wwn_, product_id);
|
|
CONFIGFS_ATTR(target_wwn_, revision);
|
|
CONFIGFS_ATTR(target_wwn_, vpd_unit_serial);
|
|
CONFIGFS_ATTR_RO(target_wwn_, vpd_protocol_identifier);
|
|
CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_logical_unit);
|
|
CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_target_port);
|
|
CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_scsi_target_device);
|
|
|
|
static struct configfs_attribute *target_core_dev_wwn_attrs[] = {
|
|
&target_wwn_attr_vendor_id,
|
|
&target_wwn_attr_product_id,
|
|
&target_wwn_attr_revision,
|
|
&target_wwn_attr_vpd_unit_serial,
|
|
&target_wwn_attr_vpd_protocol_identifier,
|
|
&target_wwn_attr_vpd_assoc_logical_unit,
|
|
&target_wwn_attr_vpd_assoc_target_port,
|
|
&target_wwn_attr_vpd_assoc_scsi_target_device,
|
|
NULL,
|
|
};
|
|
|
|
TB_CIT_SETUP(dev_wwn, NULL, NULL, target_core_dev_wwn_attrs);
|
|
|
|
/* End functions for struct config_item_type tb_dev_wwn_cit */
|
|
|
|
/* Start functions for struct config_item_type tb_dev_pr_cit */
|
|
|
|
static struct se_device *pr_to_dev(struct config_item *item)
|
|
{
|
|
return container_of(to_config_group(item), struct se_device,
|
|
dev_pr_group);
|
|
}
|
|
|
|
static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev,
|
|
char *page)
|
|
{
|
|
struct se_node_acl *se_nacl;
|
|
struct t10_pr_registration *pr_reg;
|
|
char i_buf[PR_REG_ISID_ID_LEN];
|
|
|
|
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
|
|
|
|
pr_reg = dev->dev_pr_res_holder;
|
|
if (!pr_reg)
|
|
return sprintf(page, "No SPC-3 Reservation holder\n");
|
|
|
|
se_nacl = pr_reg->pr_reg_nacl;
|
|
core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
|
|
|
|
return sprintf(page, "SPC-3 Reservation: %s Initiator: %s%s\n",
|
|
se_nacl->se_tpg->se_tpg_tfo->fabric_name,
|
|
se_nacl->initiatorname, i_buf);
|
|
}
|
|
|
|
static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev,
|
|
char *page)
|
|
{
|
|
struct se_session *sess = dev->reservation_holder;
|
|
struct se_node_acl *se_nacl;
|
|
ssize_t len;
|
|
|
|
if (sess) {
|
|
se_nacl = sess->se_node_acl;
|
|
len = sprintf(page,
|
|
"SPC-2 Reservation: %s Initiator: %s\n",
|
|
se_nacl->se_tpg->se_tpg_tfo->fabric_name,
|
|
se_nacl->initiatorname);
|
|
} else {
|
|
len = sprintf(page, "No SPC-2 Reservation holder\n");
|
|
}
|
|
return len;
|
|
}
|
|
|
|
static ssize_t target_pr_res_holder_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
int ret;
|
|
|
|
if (!dev->dev_attrib.emulate_pr)
|
|
return sprintf(page, "SPC_RESERVATIONS_DISABLED\n");
|
|
|
|
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
|
|
return sprintf(page, "Passthrough\n");
|
|
|
|
spin_lock(&dev->dev_reservation_lock);
|
|
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
|
|
ret = target_core_dev_pr_show_spc2_res(dev, page);
|
|
else
|
|
ret = target_core_dev_pr_show_spc3_res(dev, page);
|
|
spin_unlock(&dev->dev_reservation_lock);
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t target_pr_res_pr_all_tgt_pts_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
ssize_t len = 0;
|
|
|
|
spin_lock(&dev->dev_reservation_lock);
|
|
if (!dev->dev_pr_res_holder) {
|
|
len = sprintf(page, "No SPC-3 Reservation holder\n");
|
|
} else if (dev->dev_pr_res_holder->pr_reg_all_tg_pt) {
|
|
len = sprintf(page, "SPC-3 Reservation: All Target"
|
|
" Ports registration\n");
|
|
} else {
|
|
len = sprintf(page, "SPC-3 Reservation: Single"
|
|
" Target Port registration\n");
|
|
}
|
|
|
|
spin_unlock(&dev->dev_reservation_lock);
|
|
return len;
|
|
}
|
|
|
|
static ssize_t target_pr_res_pr_generation_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return sprintf(page, "0x%08x\n", pr_to_dev(item)->t10_pr.pr_generation);
|
|
}
|
|
|
|
|
|
static ssize_t target_pr_res_pr_holder_tg_port_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
struct se_node_acl *se_nacl;
|
|
struct se_portal_group *se_tpg;
|
|
struct t10_pr_registration *pr_reg;
|
|
const struct target_core_fabric_ops *tfo;
|
|
ssize_t len = 0;
|
|
|
|
spin_lock(&dev->dev_reservation_lock);
|
|
pr_reg = dev->dev_pr_res_holder;
|
|
if (!pr_reg) {
|
|
len = sprintf(page, "No SPC-3 Reservation holder\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
se_nacl = pr_reg->pr_reg_nacl;
|
|
se_tpg = se_nacl->se_tpg;
|
|
tfo = se_tpg->se_tpg_tfo;
|
|
|
|
len += sprintf(page+len, "SPC-3 Reservation: %s"
|
|
" Target Node Endpoint: %s\n", tfo->fabric_name,
|
|
tfo->tpg_get_wwn(se_tpg));
|
|
len += sprintf(page+len, "SPC-3 Reservation: Relative Port"
|
|
" Identifier Tag: %hu %s Portal Group Tag: %hu"
|
|
" %s Logical Unit: %llu\n", pr_reg->tg_pt_sep_rtpi,
|
|
tfo->fabric_name, tfo->tpg_get_tag(se_tpg),
|
|
tfo->fabric_name, pr_reg->pr_aptpl_target_lun);
|
|
|
|
out_unlock:
|
|
spin_unlock(&dev->dev_reservation_lock);
|
|
return len;
|
|
}
|
|
|
|
|
|
static ssize_t target_pr_res_pr_registered_i_pts_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
const struct target_core_fabric_ops *tfo;
|
|
struct t10_pr_registration *pr_reg;
|
|
unsigned char buf[384];
|
|
char i_buf[PR_REG_ISID_ID_LEN];
|
|
ssize_t len = 0;
|
|
int reg_count = 0;
|
|
|
|
len += sprintf(page+len, "SPC-3 PR Registrations:\n");
|
|
|
|
spin_lock(&dev->t10_pr.registration_lock);
|
|
list_for_each_entry(pr_reg, &dev->t10_pr.registration_list,
|
|
pr_reg_list) {
|
|
|
|
memset(buf, 0, 384);
|
|
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
|
|
tfo = pr_reg->pr_reg_nacl->se_tpg->se_tpg_tfo;
|
|
core_pr_dump_initiator_port(pr_reg, i_buf,
|
|
PR_REG_ISID_ID_LEN);
|
|
sprintf(buf, "%s Node: %s%s Key: 0x%016Lx PRgen: 0x%08x\n",
|
|
tfo->fabric_name,
|
|
pr_reg->pr_reg_nacl->initiatorname, i_buf, pr_reg->pr_res_key,
|
|
pr_reg->pr_res_generation);
|
|
|
|
if (len + strlen(buf) >= PAGE_SIZE)
|
|
break;
|
|
|
|
len += sprintf(page+len, "%s", buf);
|
|
reg_count++;
|
|
}
|
|
spin_unlock(&dev->t10_pr.registration_lock);
|
|
|
|
if (!reg_count)
|
|
len += sprintf(page+len, "None\n");
|
|
|
|
return len;
|
|
}
|
|
|
|
static ssize_t target_pr_res_pr_type_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
struct t10_pr_registration *pr_reg;
|
|
ssize_t len = 0;
|
|
|
|
spin_lock(&dev->dev_reservation_lock);
|
|
pr_reg = dev->dev_pr_res_holder;
|
|
if (pr_reg) {
|
|
len = sprintf(page, "SPC-3 Reservation Type: %s\n",
|
|
core_scsi3_pr_dump_type(pr_reg->pr_res_type));
|
|
} else {
|
|
len = sprintf(page, "No SPC-3 Reservation holder\n");
|
|
}
|
|
|
|
spin_unlock(&dev->dev_reservation_lock);
|
|
return len;
|
|
}
|
|
|
|
static ssize_t target_pr_res_type_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
|
|
if (!dev->dev_attrib.emulate_pr)
|
|
return sprintf(page, "SPC_RESERVATIONS_DISABLED\n");
|
|
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
|
|
return sprintf(page, "SPC_PASSTHROUGH\n");
|
|
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
|
|
return sprintf(page, "SPC2_RESERVATIONS\n");
|
|
|
|
return sprintf(page, "SPC3_PERSISTENT_RESERVATIONS\n");
|
|
}
|
|
|
|
static ssize_t target_pr_res_aptpl_active_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
|
|
if (!dev->dev_attrib.emulate_pr ||
|
|
(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
|
|
return 0;
|
|
|
|
return sprintf(page, "APTPL Bit Status: %s\n",
|
|
(dev->t10_pr.pr_aptpl_active) ? "Activated" : "Disabled");
|
|
}
|
|
|
|
static ssize_t target_pr_res_aptpl_metadata_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
|
|
if (!dev->dev_attrib.emulate_pr ||
|
|
(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
|
|
return 0;
|
|
|
|
return sprintf(page, "Ready to process PR APTPL metadata..\n");
|
|
}
|
|
|
|
enum {
|
|
Opt_initiator_fabric, Opt_initiator_node, Opt_initiator_sid,
|
|
Opt_sa_res_key, Opt_res_holder, Opt_res_type, Opt_res_scope,
|
|
Opt_res_all_tg_pt, Opt_mapped_lun, Opt_target_fabric,
|
|
Opt_target_node, Opt_tpgt, Opt_port_rtpi, Opt_target_lun, Opt_err
|
|
};
|
|
|
|
static match_table_t tokens = {
|
|
{Opt_initiator_fabric, "initiator_fabric=%s"},
|
|
{Opt_initiator_node, "initiator_node=%s"},
|
|
{Opt_initiator_sid, "initiator_sid=%s"},
|
|
{Opt_sa_res_key, "sa_res_key=%s"},
|
|
{Opt_res_holder, "res_holder=%d"},
|
|
{Opt_res_type, "res_type=%d"},
|
|
{Opt_res_scope, "res_scope=%d"},
|
|
{Opt_res_all_tg_pt, "res_all_tg_pt=%d"},
|
|
{Opt_mapped_lun, "mapped_lun=%u"},
|
|
{Opt_target_fabric, "target_fabric=%s"},
|
|
{Opt_target_node, "target_node=%s"},
|
|
{Opt_tpgt, "tpgt=%d"},
|
|
{Opt_port_rtpi, "port_rtpi=%d"},
|
|
{Opt_target_lun, "target_lun=%u"},
|
|
{Opt_err, NULL}
|
|
};
|
|
|
|
static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_device *dev = pr_to_dev(item);
|
|
unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL;
|
|
unsigned char *t_fabric = NULL, *t_port = NULL;
|
|
char *orig, *ptr, *opts;
|
|
substring_t args[MAX_OPT_ARGS];
|
|
unsigned long long tmp_ll;
|
|
u64 sa_res_key = 0;
|
|
u64 mapped_lun = 0, target_lun = 0;
|
|
int ret = -1, res_holder = 0, all_tg_pt = 0, arg, token;
|
|
u16 tpgt = 0;
|
|
u8 type = 0;
|
|
|
|
if (!dev->dev_attrib.emulate_pr ||
|
|
(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
|
|
return count;
|
|
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
|
|
return count;
|
|
|
|
if (dev->export_count) {
|
|
pr_debug("Unable to process APTPL metadata while"
|
|
" active fabric exports exist\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
opts = kstrdup(page, GFP_KERNEL);
|
|
if (!opts)
|
|
return -ENOMEM;
|
|
|
|
orig = opts;
|
|
while ((ptr = strsep(&opts, ",\n")) != NULL) {
|
|
if (!*ptr)
|
|
continue;
|
|
|
|
token = match_token(ptr, tokens, args);
|
|
switch (token) {
|
|
case Opt_initiator_fabric:
|
|
i_fabric = match_strdup(args);
|
|
if (!i_fabric) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
break;
|
|
case Opt_initiator_node:
|
|
i_port = match_strdup(args);
|
|
if (!i_port) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
if (strlen(i_port) >= PR_APTPL_MAX_IPORT_LEN) {
|
|
pr_err("APTPL metadata initiator_node="
|
|
" exceeds PR_APTPL_MAX_IPORT_LEN: %d\n",
|
|
PR_APTPL_MAX_IPORT_LEN);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
break;
|
|
case Opt_initiator_sid:
|
|
isid = match_strdup(args);
|
|
if (!isid) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
if (strlen(isid) >= PR_REG_ISID_LEN) {
|
|
pr_err("APTPL metadata initiator_isid"
|
|
"= exceeds PR_REG_ISID_LEN: %d\n",
|
|
PR_REG_ISID_LEN);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
break;
|
|
case Opt_sa_res_key:
|
|
ret = match_u64(args, &tmp_ll);
|
|
if (ret < 0) {
|
|
pr_err("kstrtoull() failed for sa_res_key=\n");
|
|
goto out;
|
|
}
|
|
sa_res_key = (u64)tmp_ll;
|
|
break;
|
|
/*
|
|
* PR APTPL Metadata for Reservation
|
|
*/
|
|
case Opt_res_holder:
|
|
ret = match_int(args, &arg);
|
|
if (ret)
|
|
goto out;
|
|
res_holder = arg;
|
|
break;
|
|
case Opt_res_type:
|
|
ret = match_int(args, &arg);
|
|
if (ret)
|
|
goto out;
|
|
type = (u8)arg;
|
|
break;
|
|
case Opt_res_scope:
|
|
ret = match_int(args, &arg);
|
|
if (ret)
|
|
goto out;
|
|
break;
|
|
case Opt_res_all_tg_pt:
|
|
ret = match_int(args, &arg);
|
|
if (ret)
|
|
goto out;
|
|
all_tg_pt = (int)arg;
|
|
break;
|
|
case Opt_mapped_lun:
|
|
ret = match_u64(args, &tmp_ll);
|
|
if (ret)
|
|
goto out;
|
|
mapped_lun = (u64)tmp_ll;
|
|
break;
|
|
/*
|
|
* PR APTPL Metadata for Target Port
|
|
*/
|
|
case Opt_target_fabric:
|
|
t_fabric = match_strdup(args);
|
|
if (!t_fabric) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
break;
|
|
case Opt_target_node:
|
|
t_port = match_strdup(args);
|
|
if (!t_port) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
if (strlen(t_port) >= PR_APTPL_MAX_TPORT_LEN) {
|
|
pr_err("APTPL metadata target_node="
|
|
" exceeds PR_APTPL_MAX_TPORT_LEN: %d\n",
|
|
PR_APTPL_MAX_TPORT_LEN);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
break;
|
|
case Opt_tpgt:
|
|
ret = match_int(args, &arg);
|
|
if (ret)
|
|
goto out;
|
|
tpgt = (u16)arg;
|
|
break;
|
|
case Opt_port_rtpi:
|
|
ret = match_int(args, &arg);
|
|
if (ret)
|
|
goto out;
|
|
break;
|
|
case Opt_target_lun:
|
|
ret = match_u64(args, &tmp_ll);
|
|
if (ret)
|
|
goto out;
|
|
target_lun = (u64)tmp_ll;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!i_port || !t_port || !sa_res_key) {
|
|
pr_err("Illegal parameters for APTPL registration\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (res_holder && !(type)) {
|
|
pr_err("Illegal PR type: 0x%02x for reservation"
|
|
" holder\n", type);
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
ret = core_scsi3_alloc_aptpl_registration(&dev->t10_pr, sa_res_key,
|
|
i_port, isid, mapped_lun, t_port, tpgt, target_lun,
|
|
res_holder, all_tg_pt, type);
|
|
out:
|
|
kfree(i_fabric);
|
|
kfree(i_port);
|
|
kfree(isid);
|
|
kfree(t_fabric);
|
|
kfree(t_port);
|
|
kfree(orig);
|
|
return (ret == 0) ? count : ret;
|
|
}
|
|
|
|
|
|
CONFIGFS_ATTR_RO(target_pr_, res_holder);
|
|
CONFIGFS_ATTR_RO(target_pr_, res_pr_all_tgt_pts);
|
|
CONFIGFS_ATTR_RO(target_pr_, res_pr_generation);
|
|
CONFIGFS_ATTR_RO(target_pr_, res_pr_holder_tg_port);
|
|
CONFIGFS_ATTR_RO(target_pr_, res_pr_registered_i_pts);
|
|
CONFIGFS_ATTR_RO(target_pr_, res_pr_type);
|
|
CONFIGFS_ATTR_RO(target_pr_, res_type);
|
|
CONFIGFS_ATTR_RO(target_pr_, res_aptpl_active);
|
|
CONFIGFS_ATTR(target_pr_, res_aptpl_metadata);
|
|
|
|
static struct configfs_attribute *target_core_dev_pr_attrs[] = {
|
|
&target_pr_attr_res_holder,
|
|
&target_pr_attr_res_pr_all_tgt_pts,
|
|
&target_pr_attr_res_pr_generation,
|
|
&target_pr_attr_res_pr_holder_tg_port,
|
|
&target_pr_attr_res_pr_registered_i_pts,
|
|
&target_pr_attr_res_pr_type,
|
|
&target_pr_attr_res_type,
|
|
&target_pr_attr_res_aptpl_active,
|
|
&target_pr_attr_res_aptpl_metadata,
|
|
NULL,
|
|
};
|
|
|
|
TB_CIT_SETUP(dev_pr, NULL, NULL, target_core_dev_pr_attrs);
|
|
|
|
/* End functions for struct config_item_type tb_dev_pr_cit */
|
|
|
|
/* Start functions for struct config_item_type tb_dev_cit */
|
|
|
|
static inline struct se_device *to_device(struct config_item *item)
|
|
{
|
|
return container_of(to_config_group(item), struct se_device, dev_group);
|
|
}
|
|
|
|
static ssize_t target_dev_info_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
int bl = 0;
|
|
ssize_t read_bytes = 0;
|
|
|
|
transport_dump_dev_state(dev, page, &bl);
|
|
read_bytes += bl;
|
|
read_bytes += dev->transport->show_configfs_dev_params(dev,
|
|
page+read_bytes);
|
|
return read_bytes;
|
|
}
|
|
|
|
static ssize_t target_dev_control_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
|
|
return dev->transport->set_configfs_dev_params(dev, page, count);
|
|
}
|
|
|
|
static ssize_t target_dev_alias_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
|
|
if (!(dev->dev_flags & DF_USING_ALIAS))
|
|
return 0;
|
|
|
|
return snprintf(page, PAGE_SIZE, "%s\n", dev->dev_alias);
|
|
}
|
|
|
|
static ssize_t target_dev_alias_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
struct se_hba *hba = dev->se_hba;
|
|
ssize_t read_bytes;
|
|
|
|
if (count > (SE_DEV_ALIAS_LEN-1)) {
|
|
pr_err("alias count: %d exceeds"
|
|
" SE_DEV_ALIAS_LEN-1: %u\n", (int)count,
|
|
SE_DEV_ALIAS_LEN-1);
|
|
return -EINVAL;
|
|
}
|
|
|
|
read_bytes = snprintf(&dev->dev_alias[0], SE_DEV_ALIAS_LEN, "%s", page);
|
|
if (!read_bytes)
|
|
return -EINVAL;
|
|
if (dev->dev_alias[read_bytes - 1] == '\n')
|
|
dev->dev_alias[read_bytes - 1] = '\0';
|
|
|
|
dev->dev_flags |= DF_USING_ALIAS;
|
|
|
|
pr_debug("Target_Core_ConfigFS: %s/%s set alias: %s\n",
|
|
config_item_name(&hba->hba_group.cg_item),
|
|
config_item_name(&dev->dev_group.cg_item),
|
|
dev->dev_alias);
|
|
|
|
return read_bytes;
|
|
}
|
|
|
|
static ssize_t target_dev_udev_path_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
|
|
if (!(dev->dev_flags & DF_USING_UDEV_PATH))
|
|
return 0;
|
|
|
|
return snprintf(page, PAGE_SIZE, "%s\n", dev->udev_path);
|
|
}
|
|
|
|
static ssize_t target_dev_udev_path_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
struct se_hba *hba = dev->se_hba;
|
|
ssize_t read_bytes;
|
|
|
|
if (count > (SE_UDEV_PATH_LEN-1)) {
|
|
pr_err("udev_path count: %d exceeds"
|
|
" SE_UDEV_PATH_LEN-1: %u\n", (int)count,
|
|
SE_UDEV_PATH_LEN-1);
|
|
return -EINVAL;
|
|
}
|
|
|
|
read_bytes = snprintf(&dev->udev_path[0], SE_UDEV_PATH_LEN,
|
|
"%s", page);
|
|
if (!read_bytes)
|
|
return -EINVAL;
|
|
if (dev->udev_path[read_bytes - 1] == '\n')
|
|
dev->udev_path[read_bytes - 1] = '\0';
|
|
|
|
dev->dev_flags |= DF_USING_UDEV_PATH;
|
|
|
|
pr_debug("Target_Core_ConfigFS: %s/%s set udev_path: %s\n",
|
|
config_item_name(&hba->hba_group.cg_item),
|
|
config_item_name(&dev->dev_group.cg_item),
|
|
dev->udev_path);
|
|
|
|
return read_bytes;
|
|
}
|
|
|
|
static ssize_t target_dev_enable_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
|
|
return snprintf(page, PAGE_SIZE, "%d\n", target_dev_configured(dev));
|
|
}
|
|
|
|
static ssize_t target_dev_enable_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
char *ptr;
|
|
int ret;
|
|
|
|
ptr = strstr(page, "1");
|
|
if (!ptr) {
|
|
pr_err("For dev_enable ops, only valid value"
|
|
" is \"1\"\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = target_configure_device(dev);
|
|
if (ret)
|
|
return ret;
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_dev_alua_lu_gp_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
struct config_item *lu_ci;
|
|
struct t10_alua_lu_gp *lu_gp;
|
|
struct t10_alua_lu_gp_member *lu_gp_mem;
|
|
ssize_t len = 0;
|
|
|
|
lu_gp_mem = dev->dev_alua_lu_gp_mem;
|
|
if (!lu_gp_mem)
|
|
return 0;
|
|
|
|
spin_lock(&lu_gp_mem->lu_gp_mem_lock);
|
|
lu_gp = lu_gp_mem->lu_gp;
|
|
if (lu_gp) {
|
|
lu_ci = &lu_gp->lu_gp_group.cg_item;
|
|
len += sprintf(page, "LU Group Alias: %s\nLU Group ID: %hu\n",
|
|
config_item_name(lu_ci), lu_gp->lu_gp_id);
|
|
}
|
|
spin_unlock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
return len;
|
|
}
|
|
|
|
static ssize_t target_dev_alua_lu_gp_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
struct se_hba *hba = dev->se_hba;
|
|
struct t10_alua_lu_gp *lu_gp = NULL, *lu_gp_new = NULL;
|
|
struct t10_alua_lu_gp_member *lu_gp_mem;
|
|
unsigned char buf[LU_GROUP_NAME_BUF];
|
|
int move = 0;
|
|
|
|
lu_gp_mem = dev->dev_alua_lu_gp_mem;
|
|
if (!lu_gp_mem)
|
|
return count;
|
|
|
|
if (count > LU_GROUP_NAME_BUF) {
|
|
pr_err("ALUA LU Group Alias too large!\n");
|
|
return -EINVAL;
|
|
}
|
|
memset(buf, 0, LU_GROUP_NAME_BUF);
|
|
memcpy(buf, page, count);
|
|
/*
|
|
* Any ALUA logical unit alias besides "NULL" means we will be
|
|
* making a new group association.
|
|
*/
|
|
if (strcmp(strstrip(buf), "NULL")) {
|
|
/*
|
|
* core_alua_get_lu_gp_by_name() will increment reference to
|
|
* struct t10_alua_lu_gp. This reference is released with
|
|
* core_alua_get_lu_gp_by_name below().
|
|
*/
|
|
lu_gp_new = core_alua_get_lu_gp_by_name(strstrip(buf));
|
|
if (!lu_gp_new)
|
|
return -ENODEV;
|
|
}
|
|
|
|
spin_lock(&lu_gp_mem->lu_gp_mem_lock);
|
|
lu_gp = lu_gp_mem->lu_gp;
|
|
if (lu_gp) {
|
|
/*
|
|
* Clearing an existing lu_gp association, and replacing
|
|
* with NULL
|
|
*/
|
|
if (!lu_gp_new) {
|
|
pr_debug("Target_Core_ConfigFS: Releasing %s/%s"
|
|
" from ALUA LU Group: core/alua/lu_gps/%s, ID:"
|
|
" %hu\n",
|
|
config_item_name(&hba->hba_group.cg_item),
|
|
config_item_name(&dev->dev_group.cg_item),
|
|
config_item_name(&lu_gp->lu_gp_group.cg_item),
|
|
lu_gp->lu_gp_id);
|
|
|
|
__core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp);
|
|
spin_unlock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
return count;
|
|
}
|
|
/*
|
|
* Removing existing association of lu_gp_mem with lu_gp
|
|
*/
|
|
__core_alua_drop_lu_gp_mem(lu_gp_mem, lu_gp);
|
|
move = 1;
|
|
}
|
|
/*
|
|
* Associate lu_gp_mem with lu_gp_new.
|
|
*/
|
|
__core_alua_attach_lu_gp_mem(lu_gp_mem, lu_gp_new);
|
|
spin_unlock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
pr_debug("Target_Core_ConfigFS: %s %s/%s to ALUA LU Group:"
|
|
" core/alua/lu_gps/%s, ID: %hu\n",
|
|
(move) ? "Moving" : "Adding",
|
|
config_item_name(&hba->hba_group.cg_item),
|
|
config_item_name(&dev->dev_group.cg_item),
|
|
config_item_name(&lu_gp_new->lu_gp_group.cg_item),
|
|
lu_gp_new->lu_gp_id);
|
|
|
|
core_alua_put_lu_gp_from_name(lu_gp_new);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_dev_lba_map_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
struct t10_alua_lba_map *map;
|
|
struct t10_alua_lba_map_member *mem;
|
|
char *b = page;
|
|
int bl = 0;
|
|
char state;
|
|
|
|
spin_lock(&dev->t10_alua.lba_map_lock);
|
|
if (!list_empty(&dev->t10_alua.lba_map_list))
|
|
bl += sprintf(b + bl, "%u %u\n",
|
|
dev->t10_alua.lba_map_segment_size,
|
|
dev->t10_alua.lba_map_segment_multiplier);
|
|
list_for_each_entry(map, &dev->t10_alua.lba_map_list, lba_map_list) {
|
|
bl += sprintf(b + bl, "%llu %llu",
|
|
map->lba_map_first_lba, map->lba_map_last_lba);
|
|
list_for_each_entry(mem, &map->lba_map_mem_list,
|
|
lba_map_mem_list) {
|
|
switch (mem->lba_map_mem_alua_state) {
|
|
case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED:
|
|
state = 'O';
|
|
break;
|
|
case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED:
|
|
state = 'A';
|
|
break;
|
|
case ALUA_ACCESS_STATE_STANDBY:
|
|
state = 'S';
|
|
break;
|
|
case ALUA_ACCESS_STATE_UNAVAILABLE:
|
|
state = 'U';
|
|
break;
|
|
default:
|
|
state = '.';
|
|
break;
|
|
}
|
|
bl += sprintf(b + bl, " %d:%c",
|
|
mem->lba_map_mem_alua_pg_id, state);
|
|
}
|
|
bl += sprintf(b + bl, "\n");
|
|
}
|
|
spin_unlock(&dev->t10_alua.lba_map_lock);
|
|
return bl;
|
|
}
|
|
|
|
static ssize_t target_dev_lba_map_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_device *dev = to_device(item);
|
|
struct t10_alua_lba_map *lba_map = NULL;
|
|
struct list_head lba_list;
|
|
char *map_entries, *orig, *ptr;
|
|
char state;
|
|
int pg_num = -1, pg;
|
|
int ret = 0, num = 0, pg_id, alua_state;
|
|
unsigned long start_lba = -1, end_lba = -1;
|
|
unsigned long segment_size = -1, segment_mult = -1;
|
|
|
|
orig = map_entries = kstrdup(page, GFP_KERNEL);
|
|
if (!map_entries)
|
|
return -ENOMEM;
|
|
|
|
INIT_LIST_HEAD(&lba_list);
|
|
while ((ptr = strsep(&map_entries, "\n")) != NULL) {
|
|
if (!*ptr)
|
|
continue;
|
|
|
|
if (num == 0) {
|
|
if (sscanf(ptr, "%lu %lu\n",
|
|
&segment_size, &segment_mult) != 2) {
|
|
pr_err("Invalid line %d\n", num);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
num++;
|
|
continue;
|
|
}
|
|
if (sscanf(ptr, "%lu %lu", &start_lba, &end_lba) != 2) {
|
|
pr_err("Invalid line %d\n", num);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
ptr = strchr(ptr, ' ');
|
|
if (!ptr) {
|
|
pr_err("Invalid line %d, missing end lba\n", num);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
ptr++;
|
|
ptr = strchr(ptr, ' ');
|
|
if (!ptr) {
|
|
pr_err("Invalid line %d, missing state definitions\n",
|
|
num);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
ptr++;
|
|
lba_map = core_alua_allocate_lba_map(&lba_list,
|
|
start_lba, end_lba);
|
|
if (IS_ERR(lba_map)) {
|
|
ret = PTR_ERR(lba_map);
|
|
break;
|
|
}
|
|
pg = 0;
|
|
while (sscanf(ptr, "%d:%c", &pg_id, &state) == 2) {
|
|
switch (state) {
|
|
case 'O':
|
|
alua_state = ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED;
|
|
break;
|
|
case 'A':
|
|
alua_state = ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED;
|
|
break;
|
|
case 'S':
|
|
alua_state = ALUA_ACCESS_STATE_STANDBY;
|
|
break;
|
|
case 'U':
|
|
alua_state = ALUA_ACCESS_STATE_UNAVAILABLE;
|
|
break;
|
|
default:
|
|
pr_err("Invalid ALUA state '%c'\n", state);
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
ret = core_alua_allocate_lba_map_mem(lba_map,
|
|
pg_id, alua_state);
|
|
if (ret) {
|
|
pr_err("Invalid target descriptor %d:%c "
|
|
"at line %d\n",
|
|
pg_id, state, num);
|
|
break;
|
|
}
|
|
pg++;
|
|
ptr = strchr(ptr, ' ');
|
|
if (ptr)
|
|
ptr++;
|
|
else
|
|
break;
|
|
}
|
|
if (pg_num == -1)
|
|
pg_num = pg;
|
|
else if (pg != pg_num) {
|
|
pr_err("Only %d from %d port groups definitions "
|
|
"at line %d\n", pg, pg_num, num);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
num++;
|
|
}
|
|
out:
|
|
if (ret) {
|
|
core_alua_free_lba_map(&lba_list);
|
|
count = ret;
|
|
} else
|
|
core_alua_set_lba_map(dev, &lba_list,
|
|
segment_size, segment_mult);
|
|
kfree(orig);
|
|
return count;
|
|
}
|
|
|
|
CONFIGFS_ATTR_RO(target_dev_, info);
|
|
CONFIGFS_ATTR_WO(target_dev_, control);
|
|
CONFIGFS_ATTR(target_dev_, alias);
|
|
CONFIGFS_ATTR(target_dev_, udev_path);
|
|
CONFIGFS_ATTR(target_dev_, enable);
|
|
CONFIGFS_ATTR(target_dev_, alua_lu_gp);
|
|
CONFIGFS_ATTR(target_dev_, lba_map);
|
|
|
|
static struct configfs_attribute *target_core_dev_attrs[] = {
|
|
&target_dev_attr_info,
|
|
&target_dev_attr_control,
|
|
&target_dev_attr_alias,
|
|
&target_dev_attr_udev_path,
|
|
&target_dev_attr_enable,
|
|
&target_dev_attr_alua_lu_gp,
|
|
&target_dev_attr_lba_map,
|
|
NULL,
|
|
};
|
|
|
|
static void target_core_dev_release(struct config_item *item)
|
|
{
|
|
struct config_group *dev_cg = to_config_group(item);
|
|
struct se_device *dev =
|
|
container_of(dev_cg, struct se_device, dev_group);
|
|
|
|
target_free_device(dev);
|
|
}
|
|
|
|
/*
|
|
* Used in target_core_fabric_configfs.c to verify valid se_device symlink
|
|
* within target_fabric_port_link()
|
|
*/
|
|
struct configfs_item_operations target_core_dev_item_ops = {
|
|
.release = target_core_dev_release,
|
|
};
|
|
|
|
TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs);
|
|
|
|
/* End functions for struct config_item_type tb_dev_cit */
|
|
|
|
/* Start functions for struct config_item_type target_core_alua_lu_gp_cit */
|
|
|
|
static inline struct t10_alua_lu_gp *to_lu_gp(struct config_item *item)
|
|
{
|
|
return container_of(to_config_group(item), struct t10_alua_lu_gp,
|
|
lu_gp_group);
|
|
}
|
|
|
|
static ssize_t target_lu_gp_lu_gp_id_show(struct config_item *item, char *page)
|
|
{
|
|
struct t10_alua_lu_gp *lu_gp = to_lu_gp(item);
|
|
|
|
if (!lu_gp->lu_gp_valid_id)
|
|
return 0;
|
|
return sprintf(page, "%hu\n", lu_gp->lu_gp_id);
|
|
}
|
|
|
|
static ssize_t target_lu_gp_lu_gp_id_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct t10_alua_lu_gp *lu_gp = to_lu_gp(item);
|
|
struct config_group *alua_lu_gp_cg = &lu_gp->lu_gp_group;
|
|
unsigned long lu_gp_id;
|
|
int ret;
|
|
|
|
ret = kstrtoul(page, 0, &lu_gp_id);
|
|
if (ret < 0) {
|
|
pr_err("kstrtoul() returned %d for"
|
|
" lu_gp_id\n", ret);
|
|
return ret;
|
|
}
|
|
if (lu_gp_id > 0x0000ffff) {
|
|
pr_err("ALUA lu_gp_id: %lu exceeds maximum:"
|
|
" 0x0000ffff\n", lu_gp_id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = core_alua_set_lu_gp_id(lu_gp, (u16)lu_gp_id);
|
|
if (ret < 0)
|
|
return -EINVAL;
|
|
|
|
pr_debug("Target_Core_ConfigFS: Set ALUA Logical Unit"
|
|
" Group: core/alua/lu_gps/%s to ID: %hu\n",
|
|
config_item_name(&alua_lu_gp_cg->cg_item),
|
|
lu_gp->lu_gp_id);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_lu_gp_members_show(struct config_item *item, char *page)
|
|
{
|
|
struct t10_alua_lu_gp *lu_gp = to_lu_gp(item);
|
|
struct se_device *dev;
|
|
struct se_hba *hba;
|
|
struct t10_alua_lu_gp_member *lu_gp_mem;
|
|
ssize_t len = 0, cur_len;
|
|
unsigned char buf[LU_GROUP_NAME_BUF];
|
|
|
|
memset(buf, 0, LU_GROUP_NAME_BUF);
|
|
|
|
spin_lock(&lu_gp->lu_gp_lock);
|
|
list_for_each_entry(lu_gp_mem, &lu_gp->lu_gp_mem_list, lu_gp_mem_list) {
|
|
dev = lu_gp_mem->lu_gp_mem_dev;
|
|
hba = dev->se_hba;
|
|
|
|
cur_len = snprintf(buf, LU_GROUP_NAME_BUF, "%s/%s\n",
|
|
config_item_name(&hba->hba_group.cg_item),
|
|
config_item_name(&dev->dev_group.cg_item));
|
|
cur_len++; /* Extra byte for NULL terminator */
|
|
|
|
if ((cur_len + len) > PAGE_SIZE) {
|
|
pr_warn("Ran out of lu_gp_show_attr"
|
|
"_members buffer\n");
|
|
break;
|
|
}
|
|
memcpy(page+len, buf, cur_len);
|
|
len += cur_len;
|
|
}
|
|
spin_unlock(&lu_gp->lu_gp_lock);
|
|
|
|
return len;
|
|
}
|
|
|
|
CONFIGFS_ATTR(target_lu_gp_, lu_gp_id);
|
|
CONFIGFS_ATTR_RO(target_lu_gp_, members);
|
|
|
|
static struct configfs_attribute *target_core_alua_lu_gp_attrs[] = {
|
|
&target_lu_gp_attr_lu_gp_id,
|
|
&target_lu_gp_attr_members,
|
|
NULL,
|
|
};
|
|
|
|
static void target_core_alua_lu_gp_release(struct config_item *item)
|
|
{
|
|
struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item),
|
|
struct t10_alua_lu_gp, lu_gp_group);
|
|
|
|
core_alua_free_lu_gp(lu_gp);
|
|
}
|
|
|
|
static struct configfs_item_operations target_core_alua_lu_gp_ops = {
|
|
.release = target_core_alua_lu_gp_release,
|
|
};
|
|
|
|
static const struct config_item_type target_core_alua_lu_gp_cit = {
|
|
.ct_item_ops = &target_core_alua_lu_gp_ops,
|
|
.ct_attrs = target_core_alua_lu_gp_attrs,
|
|
.ct_owner = THIS_MODULE,
|
|
};
|
|
|
|
/* End functions for struct config_item_type target_core_alua_lu_gp_cit */
|
|
|
|
/* Start functions for struct config_item_type target_core_alua_lu_gps_cit */
|
|
|
|
static struct config_group *target_core_alua_create_lu_gp(
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct t10_alua_lu_gp *lu_gp;
|
|
struct config_group *alua_lu_gp_cg = NULL;
|
|
struct config_item *alua_lu_gp_ci = NULL;
|
|
|
|
lu_gp = core_alua_allocate_lu_gp(name, 0);
|
|
if (IS_ERR(lu_gp))
|
|
return NULL;
|
|
|
|
alua_lu_gp_cg = &lu_gp->lu_gp_group;
|
|
alua_lu_gp_ci = &alua_lu_gp_cg->cg_item;
|
|
|
|
config_group_init_type_name(alua_lu_gp_cg, name,
|
|
&target_core_alua_lu_gp_cit);
|
|
|
|
pr_debug("Target_Core_ConfigFS: Allocated ALUA Logical Unit"
|
|
" Group: core/alua/lu_gps/%s\n",
|
|
config_item_name(alua_lu_gp_ci));
|
|
|
|
return alua_lu_gp_cg;
|
|
|
|
}
|
|
|
|
static void target_core_alua_drop_lu_gp(
|
|
struct config_group *group,
|
|
struct config_item *item)
|
|
{
|
|
struct t10_alua_lu_gp *lu_gp = container_of(to_config_group(item),
|
|
struct t10_alua_lu_gp, lu_gp_group);
|
|
|
|
pr_debug("Target_Core_ConfigFS: Releasing ALUA Logical Unit"
|
|
" Group: core/alua/lu_gps/%s, ID: %hu\n",
|
|
config_item_name(item), lu_gp->lu_gp_id);
|
|
/*
|
|
* core_alua_free_lu_gp() is called from target_core_alua_lu_gp_ops->release()
|
|
* -> target_core_alua_lu_gp_release()
|
|
*/
|
|
config_item_put(item);
|
|
}
|
|
|
|
static struct configfs_group_operations target_core_alua_lu_gps_group_ops = {
|
|
.make_group = &target_core_alua_create_lu_gp,
|
|
.drop_item = &target_core_alua_drop_lu_gp,
|
|
};
|
|
|
|
static const struct config_item_type target_core_alua_lu_gps_cit = {
|
|
.ct_item_ops = NULL,
|
|
.ct_group_ops = &target_core_alua_lu_gps_group_ops,
|
|
.ct_owner = THIS_MODULE,
|
|
};
|
|
|
|
/* End functions for struct config_item_type target_core_alua_lu_gps_cit */
|
|
|
|
/* Start functions for struct config_item_type target_core_alua_tg_pt_gp_cit */
|
|
|
|
static inline struct t10_alua_tg_pt_gp *to_tg_pt_gp(struct config_item *item)
|
|
{
|
|
return container_of(to_config_group(item), struct t10_alua_tg_pt_gp,
|
|
tg_pt_gp_group);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return sprintf(page, "%d\n",
|
|
to_tg_pt_gp(item)->tg_pt_gp_alua_access_state);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item);
|
|
struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
|
|
unsigned long tmp;
|
|
int new_state, ret;
|
|
|
|
if (!tg_pt_gp->tg_pt_gp_valid_id) {
|
|
pr_err("Unable to do implicit ALUA on non valid"
|
|
" tg_pt_gp ID: %hu\n", tg_pt_gp->tg_pt_gp_valid_id);
|
|
return -EINVAL;
|
|
}
|
|
if (!target_dev_configured(dev)) {
|
|
pr_err("Unable to set alua_access_state while device is"
|
|
" not configured\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = kstrtoul(page, 0, &tmp);
|
|
if (ret < 0) {
|
|
pr_err("Unable to extract new ALUA access state from"
|
|
" %s\n", page);
|
|
return ret;
|
|
}
|
|
new_state = (int)tmp;
|
|
|
|
if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)) {
|
|
pr_err("Unable to process implicit configfs ALUA"
|
|
" transition while TPGS_IMPLICIT_ALUA is disabled\n");
|
|
return -EINVAL;
|
|
}
|
|
if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA &&
|
|
new_state == ALUA_ACCESS_STATE_LBA_DEPENDENT) {
|
|
/* LBA DEPENDENT is only allowed with implicit ALUA */
|
|
pr_err("Unable to process implicit configfs ALUA transition"
|
|
" while explicit ALUA management is enabled\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = core_alua_do_port_transition(tg_pt_gp, dev,
|
|
NULL, NULL, new_state, 0);
|
|
return (!ret) ? count : -EINVAL;
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_alua_access_status_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item);
|
|
return sprintf(page, "%s\n",
|
|
core_alua_dump_status(tg_pt_gp->tg_pt_gp_alua_access_status));
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_alua_access_status_store(
|
|
struct config_item *item, const char *page, size_t count)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item);
|
|
unsigned long tmp;
|
|
int new_status, ret;
|
|
|
|
if (!tg_pt_gp->tg_pt_gp_valid_id) {
|
|
pr_err("Unable to do set ALUA access status on non"
|
|
" valid tg_pt_gp ID: %hu\n",
|
|
tg_pt_gp->tg_pt_gp_valid_id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = kstrtoul(page, 0, &tmp);
|
|
if (ret < 0) {
|
|
pr_err("Unable to extract new ALUA access status"
|
|
" from %s\n", page);
|
|
return ret;
|
|
}
|
|
new_status = (int)tmp;
|
|
|
|
if ((new_status != ALUA_STATUS_NONE) &&
|
|
(new_status != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
|
|
(new_status != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) {
|
|
pr_err("Illegal ALUA access status: 0x%02x\n",
|
|
new_status);
|
|
return -EINVAL;
|
|
}
|
|
|
|
tg_pt_gp->tg_pt_gp_alua_access_status = new_status;
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_alua_access_type_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return core_alua_show_access_type(to_tg_pt_gp(item), page);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_alua_access_type_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
return core_alua_store_access_type(to_tg_pt_gp(item), page, count);
|
|
}
|
|
|
|
#define ALUA_SUPPORTED_STATE_ATTR(_name, _bit) \
|
|
static ssize_t target_tg_pt_gp_alua_support_##_name##_show( \
|
|
struct config_item *item, char *p) \
|
|
{ \
|
|
struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \
|
|
return sprintf(p, "%d\n", \
|
|
!!(t->tg_pt_gp_alua_supported_states & _bit)); \
|
|
} \
|
|
\
|
|
static ssize_t target_tg_pt_gp_alua_support_##_name##_store( \
|
|
struct config_item *item, const char *p, size_t c) \
|
|
{ \
|
|
struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \
|
|
unsigned long tmp; \
|
|
int ret; \
|
|
\
|
|
if (!t->tg_pt_gp_valid_id) { \
|
|
pr_err("Unable to do set " #_name " ALUA state on non" \
|
|
" valid tg_pt_gp ID: %hu\n", \
|
|
t->tg_pt_gp_valid_id); \
|
|
return -EINVAL; \
|
|
} \
|
|
\
|
|
ret = kstrtoul(p, 0, &tmp); \
|
|
if (ret < 0) { \
|
|
pr_err("Invalid value '%s', must be '0' or '1'\n", p); \
|
|
return -EINVAL; \
|
|
} \
|
|
if (tmp > 1) { \
|
|
pr_err("Invalid value '%ld', must be '0' or '1'\n", tmp); \
|
|
return -EINVAL; \
|
|
} \
|
|
if (tmp) \
|
|
t->tg_pt_gp_alua_supported_states |= _bit; \
|
|
else \
|
|
t->tg_pt_gp_alua_supported_states &= ~_bit; \
|
|
\
|
|
return c; \
|
|
}
|
|
|
|
ALUA_SUPPORTED_STATE_ATTR(transitioning, ALUA_T_SUP);
|
|
ALUA_SUPPORTED_STATE_ATTR(offline, ALUA_O_SUP);
|
|
ALUA_SUPPORTED_STATE_ATTR(lba_dependent, ALUA_LBD_SUP);
|
|
ALUA_SUPPORTED_STATE_ATTR(unavailable, ALUA_U_SUP);
|
|
ALUA_SUPPORTED_STATE_ATTR(standby, ALUA_S_SUP);
|
|
ALUA_SUPPORTED_STATE_ATTR(active_optimized, ALUA_AO_SUP);
|
|
ALUA_SUPPORTED_STATE_ATTR(active_nonoptimized, ALUA_AN_SUP);
|
|
|
|
static ssize_t target_tg_pt_gp_alua_write_metadata_show(
|
|
struct config_item *item, char *page)
|
|
{
|
|
return sprintf(page, "%d\n",
|
|
to_tg_pt_gp(item)->tg_pt_gp_write_metadata);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_alua_write_metadata_store(
|
|
struct config_item *item, const char *page, size_t count)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item);
|
|
unsigned long tmp;
|
|
int ret;
|
|
|
|
ret = kstrtoul(page, 0, &tmp);
|
|
if (ret < 0) {
|
|
pr_err("Unable to extract alua_write_metadata\n");
|
|
return ret;
|
|
}
|
|
|
|
if ((tmp != 0) && (tmp != 1)) {
|
|
pr_err("Illegal value for alua_write_metadata:"
|
|
" %lu\n", tmp);
|
|
return -EINVAL;
|
|
}
|
|
tg_pt_gp->tg_pt_gp_write_metadata = (int)tmp;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_nonop_delay_msecs_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return core_alua_show_nonop_delay_msecs(to_tg_pt_gp(item), page);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_nonop_delay_msecs_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
return core_alua_store_nonop_delay_msecs(to_tg_pt_gp(item), page,
|
|
count);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_trans_delay_msecs_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return core_alua_show_trans_delay_msecs(to_tg_pt_gp(item), page);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_trans_delay_msecs_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
return core_alua_store_trans_delay_msecs(to_tg_pt_gp(item), page,
|
|
count);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_implicit_trans_secs_show(
|
|
struct config_item *item, char *page)
|
|
{
|
|
return core_alua_show_implicit_trans_secs(to_tg_pt_gp(item), page);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_implicit_trans_secs_store(
|
|
struct config_item *item, const char *page, size_t count)
|
|
{
|
|
return core_alua_store_implicit_trans_secs(to_tg_pt_gp(item), page,
|
|
count);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_preferred_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return core_alua_show_preferred_bit(to_tg_pt_gp(item), page);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_preferred_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
return core_alua_store_preferred_bit(to_tg_pt_gp(item), page, count);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_tg_pt_gp_id_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item);
|
|
|
|
if (!tg_pt_gp->tg_pt_gp_valid_id)
|
|
return 0;
|
|
return sprintf(page, "%hu\n", tg_pt_gp->tg_pt_gp_id);
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_tg_pt_gp_id_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item);
|
|
struct config_group *alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group;
|
|
unsigned long tg_pt_gp_id;
|
|
int ret;
|
|
|
|
ret = kstrtoul(page, 0, &tg_pt_gp_id);
|
|
if (ret < 0) {
|
|
pr_err("ALUA tg_pt_gp_id: invalid value '%s' for tg_pt_gp_id\n",
|
|
page);
|
|
return ret;
|
|
}
|
|
if (tg_pt_gp_id > 0x0000ffff) {
|
|
pr_err("ALUA tg_pt_gp_id: %lu exceeds maximum: 0x0000ffff\n",
|
|
tg_pt_gp_id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = core_alua_set_tg_pt_gp_id(tg_pt_gp, (u16)tg_pt_gp_id);
|
|
if (ret < 0)
|
|
return -EINVAL;
|
|
|
|
pr_debug("Target_Core_ConfigFS: Set ALUA Target Port Group: "
|
|
"core/alua/tg_pt_gps/%s to ID: %hu\n",
|
|
config_item_name(&alua_tg_pt_gp_cg->cg_item),
|
|
tg_pt_gp->tg_pt_gp_id);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t target_tg_pt_gp_members_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item);
|
|
struct se_lun *lun;
|
|
ssize_t len = 0, cur_len;
|
|
unsigned char buf[TG_PT_GROUP_NAME_BUF];
|
|
|
|
memset(buf, 0, TG_PT_GROUP_NAME_BUF);
|
|
|
|
spin_lock(&tg_pt_gp->tg_pt_gp_lock);
|
|
list_for_each_entry(lun, &tg_pt_gp->tg_pt_gp_lun_list,
|
|
lun_tg_pt_gp_link) {
|
|
struct se_portal_group *tpg = lun->lun_tpg;
|
|
|
|
cur_len = snprintf(buf, TG_PT_GROUP_NAME_BUF, "%s/%s/tpgt_%hu"
|
|
"/%s\n", tpg->se_tpg_tfo->fabric_name,
|
|
tpg->se_tpg_tfo->tpg_get_wwn(tpg),
|
|
tpg->se_tpg_tfo->tpg_get_tag(tpg),
|
|
config_item_name(&lun->lun_group.cg_item));
|
|
cur_len++; /* Extra byte for NULL terminator */
|
|
|
|
if ((cur_len + len) > PAGE_SIZE) {
|
|
pr_warn("Ran out of lu_gp_show_attr"
|
|
"_members buffer\n");
|
|
break;
|
|
}
|
|
memcpy(page+len, buf, cur_len);
|
|
len += cur_len;
|
|
}
|
|
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
|
|
|
|
return len;
|
|
}
|
|
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_state);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_status);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_type);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_transitioning);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_offline);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_lba_dependent);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_unavailable);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_standby);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_optimized);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_nonoptimized);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, alua_write_metadata);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, nonop_delay_msecs);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, trans_delay_msecs);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, implicit_trans_secs);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, preferred);
|
|
CONFIGFS_ATTR(target_tg_pt_gp_, tg_pt_gp_id);
|
|
CONFIGFS_ATTR_RO(target_tg_pt_gp_, members);
|
|
|
|
static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = {
|
|
&target_tg_pt_gp_attr_alua_access_state,
|
|
&target_tg_pt_gp_attr_alua_access_status,
|
|
&target_tg_pt_gp_attr_alua_access_type,
|
|
&target_tg_pt_gp_attr_alua_support_transitioning,
|
|
&target_tg_pt_gp_attr_alua_support_offline,
|
|
&target_tg_pt_gp_attr_alua_support_lba_dependent,
|
|
&target_tg_pt_gp_attr_alua_support_unavailable,
|
|
&target_tg_pt_gp_attr_alua_support_standby,
|
|
&target_tg_pt_gp_attr_alua_support_active_nonoptimized,
|
|
&target_tg_pt_gp_attr_alua_support_active_optimized,
|
|
&target_tg_pt_gp_attr_alua_write_metadata,
|
|
&target_tg_pt_gp_attr_nonop_delay_msecs,
|
|
&target_tg_pt_gp_attr_trans_delay_msecs,
|
|
&target_tg_pt_gp_attr_implicit_trans_secs,
|
|
&target_tg_pt_gp_attr_preferred,
|
|
&target_tg_pt_gp_attr_tg_pt_gp_id,
|
|
&target_tg_pt_gp_attr_members,
|
|
NULL,
|
|
};
|
|
|
|
static void target_core_alua_tg_pt_gp_release(struct config_item *item)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item),
|
|
struct t10_alua_tg_pt_gp, tg_pt_gp_group);
|
|
|
|
core_alua_free_tg_pt_gp(tg_pt_gp);
|
|
}
|
|
|
|
static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = {
|
|
.release = target_core_alua_tg_pt_gp_release,
|
|
};
|
|
|
|
static const struct config_item_type target_core_alua_tg_pt_gp_cit = {
|
|
.ct_item_ops = &target_core_alua_tg_pt_gp_ops,
|
|
.ct_attrs = target_core_alua_tg_pt_gp_attrs,
|
|
.ct_owner = THIS_MODULE,
|
|
};
|
|
|
|
/* End functions for struct config_item_type target_core_alua_tg_pt_gp_cit */
|
|
|
|
/* Start functions for struct config_item_type tb_alua_tg_pt_gps_cit */
|
|
|
|
static struct config_group *target_core_alua_create_tg_pt_gp(
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct t10_alua *alua = container_of(group, struct t10_alua,
|
|
alua_tg_pt_gps_group);
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp;
|
|
struct config_group *alua_tg_pt_gp_cg = NULL;
|
|
struct config_item *alua_tg_pt_gp_ci = NULL;
|
|
|
|
tg_pt_gp = core_alua_allocate_tg_pt_gp(alua->t10_dev, name, 0);
|
|
if (!tg_pt_gp)
|
|
return NULL;
|
|
|
|
alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group;
|
|
alua_tg_pt_gp_ci = &alua_tg_pt_gp_cg->cg_item;
|
|
|
|
config_group_init_type_name(alua_tg_pt_gp_cg, name,
|
|
&target_core_alua_tg_pt_gp_cit);
|
|
|
|
pr_debug("Target_Core_ConfigFS: Allocated ALUA Target Port"
|
|
" Group: alua/tg_pt_gps/%s\n",
|
|
config_item_name(alua_tg_pt_gp_ci));
|
|
|
|
return alua_tg_pt_gp_cg;
|
|
}
|
|
|
|
static void target_core_alua_drop_tg_pt_gp(
|
|
struct config_group *group,
|
|
struct config_item *item)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(to_config_group(item),
|
|
struct t10_alua_tg_pt_gp, tg_pt_gp_group);
|
|
|
|
pr_debug("Target_Core_ConfigFS: Releasing ALUA Target Port"
|
|
" Group: alua/tg_pt_gps/%s, ID: %hu\n",
|
|
config_item_name(item), tg_pt_gp->tg_pt_gp_id);
|
|
/*
|
|
* core_alua_free_tg_pt_gp() is called from target_core_alua_tg_pt_gp_ops->release()
|
|
* -> target_core_alua_tg_pt_gp_release().
|
|
*/
|
|
config_item_put(item);
|
|
}
|
|
|
|
static struct configfs_group_operations target_core_alua_tg_pt_gps_group_ops = {
|
|
.make_group = &target_core_alua_create_tg_pt_gp,
|
|
.drop_item = &target_core_alua_drop_tg_pt_gp,
|
|
};
|
|
|
|
TB_CIT_SETUP(dev_alua_tg_pt_gps, NULL, &target_core_alua_tg_pt_gps_group_ops, NULL);
|
|
|
|
/* End functions for struct config_item_type tb_alua_tg_pt_gps_cit */
|
|
|
|
/* Start functions for struct config_item_type target_core_alua_cit */
|
|
|
|
/*
|
|
* target_core_alua_cit is a ConfigFS group that lives under
|
|
* /sys/kernel/config/target/core/alua. There are default groups
|
|
* core/alua/lu_gps and core/alua/tg_pt_gps that are attached to
|
|
* target_core_alua_cit in target_core_init_configfs() below.
|
|
*/
|
|
static const struct config_item_type target_core_alua_cit = {
|
|
.ct_item_ops = NULL,
|
|
.ct_attrs = NULL,
|
|
.ct_owner = THIS_MODULE,
|
|
};
|
|
|
|
/* End functions for struct config_item_type target_core_alua_cit */
|
|
|
|
/* Start functions for struct config_item_type tb_dev_stat_cit */
|
|
|
|
static struct config_group *target_core_stat_mkdir(
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
static void target_core_stat_rmdir(
|
|
struct config_group *group,
|
|
struct config_item *item)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static struct configfs_group_operations target_core_stat_group_ops = {
|
|
.make_group = &target_core_stat_mkdir,
|
|
.drop_item = &target_core_stat_rmdir,
|
|
};
|
|
|
|
TB_CIT_SETUP(dev_stat, NULL, &target_core_stat_group_ops, NULL);
|
|
|
|
/* End functions for struct config_item_type tb_dev_stat_cit */
|
|
|
|
/* Start functions for struct config_item_type target_core_hba_cit */
|
|
|
|
static struct config_group *target_core_make_subdev(
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp;
|
|
struct config_item *hba_ci = &group->cg_item;
|
|
struct se_hba *hba = item_to_hba(hba_ci);
|
|
struct target_backend *tb = hba->backend;
|
|
struct se_device *dev;
|
|
int errno = -ENOMEM, ret;
|
|
|
|
ret = mutex_lock_interruptible(&hba->hba_access_mutex);
|
|
if (ret)
|
|
return ERR_PTR(ret);
|
|
|
|
dev = target_alloc_device(hba, name);
|
|
if (!dev)
|
|
goto out_unlock;
|
|
|
|
config_group_init_type_name(&dev->dev_group, name, &tb->tb_dev_cit);
|
|
|
|
config_group_init_type_name(&dev->dev_action_group, "action",
|
|
&tb->tb_dev_action_cit);
|
|
configfs_add_default_group(&dev->dev_action_group, &dev->dev_group);
|
|
|
|
config_group_init_type_name(&dev->dev_attrib.da_group, "attrib",
|
|
&tb->tb_dev_attrib_cit);
|
|
configfs_add_default_group(&dev->dev_attrib.da_group, &dev->dev_group);
|
|
|
|
config_group_init_type_name(&dev->dev_pr_group, "pr",
|
|
&tb->tb_dev_pr_cit);
|
|
configfs_add_default_group(&dev->dev_pr_group, &dev->dev_group);
|
|
|
|
config_group_init_type_name(&dev->t10_wwn.t10_wwn_group, "wwn",
|
|
&tb->tb_dev_wwn_cit);
|
|
configfs_add_default_group(&dev->t10_wwn.t10_wwn_group,
|
|
&dev->dev_group);
|
|
|
|
config_group_init_type_name(&dev->t10_alua.alua_tg_pt_gps_group,
|
|
"alua", &tb->tb_dev_alua_tg_pt_gps_cit);
|
|
configfs_add_default_group(&dev->t10_alua.alua_tg_pt_gps_group,
|
|
&dev->dev_group);
|
|
|
|
config_group_init_type_name(&dev->dev_stat_grps.stat_group,
|
|
"statistics", &tb->tb_dev_stat_cit);
|
|
configfs_add_default_group(&dev->dev_stat_grps.stat_group,
|
|
&dev->dev_group);
|
|
|
|
/*
|
|
* Add core/$HBA/$DEV/alua/default_tg_pt_gp
|
|
*/
|
|
tg_pt_gp = core_alua_allocate_tg_pt_gp(dev, "default_tg_pt_gp", 1);
|
|
if (!tg_pt_gp)
|
|
goto out_free_device;
|
|
dev->t10_alua.default_tg_pt_gp = tg_pt_gp;
|
|
|
|
config_group_init_type_name(&tg_pt_gp->tg_pt_gp_group,
|
|
"default_tg_pt_gp", &target_core_alua_tg_pt_gp_cit);
|
|
configfs_add_default_group(&tg_pt_gp->tg_pt_gp_group,
|
|
&dev->t10_alua.alua_tg_pt_gps_group);
|
|
|
|
/*
|
|
* Add core/$HBA/$DEV/statistics/ default groups
|
|
*/
|
|
target_stat_setup_dev_default_groups(dev);
|
|
|
|
mutex_unlock(&hba->hba_access_mutex);
|
|
return &dev->dev_group;
|
|
|
|
out_free_device:
|
|
target_free_device(dev);
|
|
out_unlock:
|
|
mutex_unlock(&hba->hba_access_mutex);
|
|
return ERR_PTR(errno);
|
|
}
|
|
|
|
static void target_core_drop_subdev(
|
|
struct config_group *group,
|
|
struct config_item *item)
|
|
{
|
|
struct config_group *dev_cg = to_config_group(item);
|
|
struct se_device *dev =
|
|
container_of(dev_cg, struct se_device, dev_group);
|
|
struct se_hba *hba;
|
|
|
|
hba = item_to_hba(&dev->se_hba->hba_group.cg_item);
|
|
|
|
mutex_lock(&hba->hba_access_mutex);
|
|
|
|
configfs_remove_default_groups(&dev->dev_stat_grps.stat_group);
|
|
configfs_remove_default_groups(&dev->t10_alua.alua_tg_pt_gps_group);
|
|
|
|
/*
|
|
* core_alua_free_tg_pt_gp() is called from ->default_tg_pt_gp
|
|
* directly from target_core_alua_tg_pt_gp_release().
|
|
*/
|
|
dev->t10_alua.default_tg_pt_gp = NULL;
|
|
|
|
configfs_remove_default_groups(dev_cg);
|
|
|
|
/*
|
|
* se_dev is released from target_core_dev_item_ops->release()
|
|
*/
|
|
config_item_put(item);
|
|
mutex_unlock(&hba->hba_access_mutex);
|
|
}
|
|
|
|
static struct configfs_group_operations target_core_hba_group_ops = {
|
|
.make_group = target_core_make_subdev,
|
|
.drop_item = target_core_drop_subdev,
|
|
};
|
|
|
|
|
|
static inline struct se_hba *to_hba(struct config_item *item)
|
|
{
|
|
return container_of(to_config_group(item), struct se_hba, hba_group);
|
|
}
|
|
|
|
static ssize_t target_hba_info_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_hba *hba = to_hba(item);
|
|
|
|
return sprintf(page, "HBA Index: %d plugin: %s version: %s\n",
|
|
hba->hba_id, hba->backend->ops->name,
|
|
TARGET_CORE_VERSION);
|
|
}
|
|
|
|
static ssize_t target_hba_mode_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_hba *hba = to_hba(item);
|
|
int hba_mode = 0;
|
|
|
|
if (hba->hba_flags & HBA_FLAGS_PSCSI_MODE)
|
|
hba_mode = 1;
|
|
|
|
return sprintf(page, "%d\n", hba_mode);
|
|
}
|
|
|
|
static ssize_t target_hba_mode_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_hba *hba = to_hba(item);
|
|
unsigned long mode_flag;
|
|
int ret;
|
|
|
|
if (hba->backend->ops->pmode_enable_hba == NULL)
|
|
return -EINVAL;
|
|
|
|
ret = kstrtoul(page, 0, &mode_flag);
|
|
if (ret < 0) {
|
|
pr_err("Unable to extract hba mode flag: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (hba->dev_count) {
|
|
pr_err("Unable to set hba_mode with active devices\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = hba->backend->ops->pmode_enable_hba(hba, mode_flag);
|
|
if (ret < 0)
|
|
return -EINVAL;
|
|
if (ret > 0)
|
|
hba->hba_flags |= HBA_FLAGS_PSCSI_MODE;
|
|
else if (ret == 0)
|
|
hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE;
|
|
|
|
return count;
|
|
}
|
|
|
|
CONFIGFS_ATTR_RO(target_, hba_info);
|
|
CONFIGFS_ATTR(target_, hba_mode);
|
|
|
|
static void target_core_hba_release(struct config_item *item)
|
|
{
|
|
struct se_hba *hba = container_of(to_config_group(item),
|
|
struct se_hba, hba_group);
|
|
core_delete_hba(hba);
|
|
}
|
|
|
|
static struct configfs_attribute *target_core_hba_attrs[] = {
|
|
&target_attr_hba_info,
|
|
&target_attr_hba_mode,
|
|
NULL,
|
|
};
|
|
|
|
static struct configfs_item_operations target_core_hba_item_ops = {
|
|
.release = target_core_hba_release,
|
|
};
|
|
|
|
static const struct config_item_type target_core_hba_cit = {
|
|
.ct_item_ops = &target_core_hba_item_ops,
|
|
.ct_group_ops = &target_core_hba_group_ops,
|
|
.ct_attrs = target_core_hba_attrs,
|
|
.ct_owner = THIS_MODULE,
|
|
};
|
|
|
|
static struct config_group *target_core_call_addhbatotarget(
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
char *se_plugin_str, *str, *str2;
|
|
struct se_hba *hba;
|
|
char buf[TARGET_CORE_NAME_MAX_LEN];
|
|
unsigned long plugin_dep_id = 0;
|
|
int ret;
|
|
|
|
memset(buf, 0, TARGET_CORE_NAME_MAX_LEN);
|
|
if (strlen(name) >= TARGET_CORE_NAME_MAX_LEN) {
|
|
pr_err("Passed *name strlen(): %d exceeds"
|
|
" TARGET_CORE_NAME_MAX_LEN: %d\n", (int)strlen(name),
|
|
TARGET_CORE_NAME_MAX_LEN);
|
|
return ERR_PTR(-ENAMETOOLONG);
|
|
}
|
|
snprintf(buf, TARGET_CORE_NAME_MAX_LEN, "%s", name);
|
|
|
|
str = strstr(buf, "_");
|
|
if (!str) {
|
|
pr_err("Unable to locate \"_\" for $SUBSYSTEM_PLUGIN_$HOST_ID\n");
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
se_plugin_str = buf;
|
|
/*
|
|
* Special case for subsystem plugins that have "_" in their names.
|
|
* Namely rd_direct and rd_mcp..
|
|
*/
|
|
str2 = strstr(str+1, "_");
|
|
if (str2) {
|
|
*str2 = '\0'; /* Terminate for *se_plugin_str */
|
|
str2++; /* Skip to start of plugin dependent ID */
|
|
str = str2;
|
|
} else {
|
|
*str = '\0'; /* Terminate for *se_plugin_str */
|
|
str++; /* Skip to start of plugin dependent ID */
|
|
}
|
|
|
|
ret = kstrtoul(str, 0, &plugin_dep_id);
|
|
if (ret < 0) {
|
|
pr_err("kstrtoul() returned %d for"
|
|
" plugin_dep_id\n", ret);
|
|
return ERR_PTR(ret);
|
|
}
|
|
/*
|
|
* Load up TCM subsystem plugins if they have not already been loaded.
|
|
*/
|
|
transport_subsystem_check_init();
|
|
|
|
hba = core_alloc_hba(se_plugin_str, plugin_dep_id, 0);
|
|
if (IS_ERR(hba))
|
|
return ERR_CAST(hba);
|
|
|
|
config_group_init_type_name(&hba->hba_group, name,
|
|
&target_core_hba_cit);
|
|
|
|
return &hba->hba_group;
|
|
}
|
|
|
|
static void target_core_call_delhbafromtarget(
|
|
struct config_group *group,
|
|
struct config_item *item)
|
|
{
|
|
/*
|
|
* core_delete_hba() is called from target_core_hba_item_ops->release()
|
|
* -> target_core_hba_release()
|
|
*/
|
|
config_item_put(item);
|
|
}
|
|
|
|
static struct configfs_group_operations target_core_group_ops = {
|
|
.make_group = target_core_call_addhbatotarget,
|
|
.drop_item = target_core_call_delhbafromtarget,
|
|
};
|
|
|
|
static const struct config_item_type target_core_cit = {
|
|
.ct_item_ops = NULL,
|
|
.ct_group_ops = &target_core_group_ops,
|
|
.ct_attrs = NULL,
|
|
.ct_owner = THIS_MODULE,
|
|
};
|
|
|
|
/* Stop functions for struct config_item_type target_core_hba_cit */
|
|
|
|
void target_setup_backend_cits(struct target_backend *tb)
|
|
{
|
|
target_core_setup_dev_cit(tb);
|
|
target_core_setup_dev_action_cit(tb);
|
|
target_core_setup_dev_attrib_cit(tb);
|
|
target_core_setup_dev_pr_cit(tb);
|
|
target_core_setup_dev_wwn_cit(tb);
|
|
target_core_setup_dev_alua_tg_pt_gps_cit(tb);
|
|
target_core_setup_dev_stat_cit(tb);
|
|
}
|
|
|
|
static void target_init_dbroot(void)
|
|
{
|
|
struct file *fp;
|
|
|
|
snprintf(db_root_stage, DB_ROOT_LEN, DB_ROOT_PREFERRED);
|
|
fp = filp_open(db_root_stage, O_RDONLY, 0);
|
|
if (IS_ERR(fp)) {
|
|
pr_err("db_root: cannot open: %s\n", db_root_stage);
|
|
return;
|
|
}
|
|
if (!S_ISDIR(file_inode(fp)->i_mode)) {
|
|
filp_close(fp, NULL);
|
|
pr_err("db_root: not a valid directory: %s\n", db_root_stage);
|
|
return;
|
|
}
|
|
filp_close(fp, NULL);
|
|
|
|
strncpy(db_root, db_root_stage, DB_ROOT_LEN);
|
|
pr_debug("Target_Core_ConfigFS: db_root set to %s\n", db_root);
|
|
}
|
|
|
|
static int __init target_core_init_configfs(void)
|
|
{
|
|
struct configfs_subsystem *subsys = &target_core_fabrics;
|
|
struct t10_alua_lu_gp *lu_gp;
|
|
int ret;
|
|
|
|
pr_debug("TARGET_CORE[0]: Loading Generic Kernel Storage"
|
|
" Engine: %s on %s/%s on "UTS_RELEASE"\n",
|
|
TARGET_CORE_VERSION, utsname()->sysname, utsname()->machine);
|
|
|
|
config_group_init(&subsys->su_group);
|
|
mutex_init(&subsys->su_mutex);
|
|
|
|
ret = init_se_kmem_caches();
|
|
if (ret < 0)
|
|
return ret;
|
|
/*
|
|
* Create $CONFIGFS/target/core default group for HBA <-> Storage Object
|
|
* and ALUA Logical Unit Group and Target Port Group infrastructure.
|
|
*/
|
|
config_group_init_type_name(&target_core_hbagroup, "core",
|
|
&target_core_cit);
|
|
configfs_add_default_group(&target_core_hbagroup, &subsys->su_group);
|
|
|
|
/*
|
|
* Create ALUA infrastructure under /sys/kernel/config/target/core/alua/
|
|
*/
|
|
config_group_init_type_name(&alua_group, "alua", &target_core_alua_cit);
|
|
configfs_add_default_group(&alua_group, &target_core_hbagroup);
|
|
|
|
/*
|
|
* Add ALUA Logical Unit Group and Target Port Group ConfigFS
|
|
* groups under /sys/kernel/config/target/core/alua/
|
|
*/
|
|
config_group_init_type_name(&alua_lu_gps_group, "lu_gps",
|
|
&target_core_alua_lu_gps_cit);
|
|
configfs_add_default_group(&alua_lu_gps_group, &alua_group);
|
|
|
|
/*
|
|
* Add core/alua/lu_gps/default_lu_gp
|
|
*/
|
|
lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1);
|
|
if (IS_ERR(lu_gp)) {
|
|
ret = -ENOMEM;
|
|
goto out_global;
|
|
}
|
|
|
|
config_group_init_type_name(&lu_gp->lu_gp_group, "default_lu_gp",
|
|
&target_core_alua_lu_gp_cit);
|
|
configfs_add_default_group(&lu_gp->lu_gp_group, &alua_lu_gps_group);
|
|
|
|
default_lu_gp = lu_gp;
|
|
|
|
/*
|
|
* Register the target_core_mod subsystem with configfs.
|
|
*/
|
|
ret = configfs_register_subsystem(subsys);
|
|
if (ret < 0) {
|
|
pr_err("Error %d while registering subsystem %s\n",
|
|
ret, subsys->su_group.cg_item.ci_namebuf);
|
|
goto out_global;
|
|
}
|
|
pr_debug("TARGET_CORE[0]: Initialized ConfigFS Fabric"
|
|
" Infrastructure: "TARGET_CORE_VERSION" on %s/%s"
|
|
" on "UTS_RELEASE"\n", utsname()->sysname, utsname()->machine);
|
|
/*
|
|
* Register built-in RAMDISK subsystem logic for virtual LUN 0
|
|
*/
|
|
ret = rd_module_init();
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = core_dev_setup_virtual_lun0();
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = target_xcopy_setup_pt();
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
target_init_dbroot();
|
|
|
|
return 0;
|
|
|
|
out:
|
|
configfs_unregister_subsystem(subsys);
|
|
core_dev_release_virtual_lun0();
|
|
rd_module_exit();
|
|
out_global:
|
|
if (default_lu_gp) {
|
|
core_alua_free_lu_gp(default_lu_gp);
|
|
default_lu_gp = NULL;
|
|
}
|
|
release_se_kmem_caches();
|
|
return ret;
|
|
}
|
|
|
|
static void __exit target_core_exit_configfs(void)
|
|
{
|
|
configfs_remove_default_groups(&alua_lu_gps_group);
|
|
configfs_remove_default_groups(&alua_group);
|
|
configfs_remove_default_groups(&target_core_hbagroup);
|
|
|
|
/*
|
|
* We expect subsys->su_group.default_groups to be released
|
|
* by configfs subsystem provider logic..
|
|
*/
|
|
configfs_unregister_subsystem(&target_core_fabrics);
|
|
|
|
core_alua_free_lu_gp(default_lu_gp);
|
|
default_lu_gp = NULL;
|
|
|
|
pr_debug("TARGET_CORE[0]: Released ConfigFS Fabric"
|
|
" Infrastructure\n");
|
|
|
|
core_dev_release_virtual_lun0();
|
|
rd_module_exit();
|
|
target_xcopy_release_pt();
|
|
release_se_kmem_caches();
|
|
}
|
|
|
|
MODULE_DESCRIPTION("Target_Core_Mod/ConfigFS");
|
|
MODULE_AUTHOR("nab@Linux-iSCSI.org");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(target_core_init_configfs);
|
|
module_exit(target_core_exit_configfs);
|