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Merge tag 'hyperv-next-signed-20220528' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- Harden hv_sock driver (Andrea Parri)
- Harden Hyper-V PCI driver (Andrea Parri)
- Fix multi-MSI for Hyper-V PCI driver (Jeffrey Hugo)
- Fix Hyper-V PCI to reduce boot time (Dexuan Cui)
- Remove code for long EOL'ed Hyper-V versions (Michael Kelley, Saurabh
Sengar)
- Fix balloon driver error handling (Shradha Gupta)
- Fix a typo in vmbus driver (Julia Lawall)
- Ignore vmbus IMC device (Michael Kelley)
- Add a new error message to Hyper-V DRM driver (Saurabh Sengar)
* tag 'hyperv-next-signed-20220528' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (28 commits)
hv_balloon: Fix balloon_probe() and balloon_remove() error handling
scsi: storvsc: Removing Pre Win8 related logic
Drivers: hv: vmbus: fix typo in comment
PCI: hv: Fix synchronization between channel callback and hv_pci_bus_exit()
PCI: hv: Add validation for untrusted Hyper-V values
PCI: hv: Fix interrupt mapping for multi-MSI
PCI: hv: Reuse existing IRTE allocation in compose_msi_msg()
drm/hyperv: Remove support for Hyper-V 2008 and 2008R2/Win7
video: hyperv_fb: Remove support for Hyper-V 2008 and 2008R2/Win7
scsi: storvsc: Remove support for Hyper-V 2008 and 2008R2/Win7
Drivers: hv: vmbus: Remove support for Hyper-V 2008 and Hyper-V 2008R2/Win7
x86/hyperv: Disable hardlockup detector by default in Hyper-V guests
drm/hyperv: Add error message for fb size greater than allocated
PCI: hv: Do not set PCI_COMMAND_MEMORY to reduce VM boot time
PCI: hv: Fix hv_arch_irq_unmask() for multi-MSI
Drivers: hv: vmbus: Refactor the ring-buffer iterator functions
Drivers: hv: vmbus: Accept hv_sock offers in isolated guests
hv_sock: Add validation for untrusted Hyper-V values
hv_sock: Copy packets sent by Hyper-V out of the ring buffer
hv_sock: Check hv_pkt_iter_first_raw()'s return value
...
The latest storvsc code has already removed the support for windows 7 and
earlier. There is still some code logic remaining which is there to support
pre Windows 8 OS. This patch removes these stale logic.
This patch majorly does three things :
1. Removes vmscsi_size_delta and its logic, as the vmscsi_request struct is
same for all the OS post windows 8 there is no need of delta.
2. Simplify sense_buffer_size logic, as there is single buffer size for
all the post windows 8 OS.
3. Embed the vmscsi_win8_extension structure inside the vmscsi_request,
as there is no separate handling required for different OS.
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1653478022-26621-1-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
This series consists of a small set of driver updates (lpfc, ufs,
mpt3sas mpi3mr, iscsi target). Apart from that this is mostly small
fixes with very few core changes (the biggest one being VPD caching.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This consists of a small set of driver updates (lpfc, ufs, mpt3sas
mpi3mr, iscsi target). Apart from that this is mostly small fixes with
very few core changes (the biggest one being VPD caching)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (177 commits)
scsi: target: tcmu: Avoid holding XArray lock when calling lock_page
scsi: elx: efct: Remove NULL check after calling container_of()
scsi: dpt_i2o: Drop redundant spinlock initialization
scsi: qedf: Remove redundant variable op
scsi: hisi_sas: Fix memory ordering in hisi_sas_task_deliver()
scsi: fnic: Replace DMA mask of 64 bits with 47 bits
scsi: mpi3mr: Add target device related sysfs attributes
scsi: mpi3mr: Add shost related sysfs attributes
scsi: elx: efct: Remove redundant memset() statement
scsi: megaraid_sas: Remove redundant memset() statement
scsi: mpi3mr: Return error if dma_alloc_coherent() fails
scsi: hisi_sas: Fix rescan after deleting a disk
scsi: hisi_sas: Use sas_ata_wait_after_reset() in IT nexus reset
scsi: libsas: Refactor sas_ata_hard_reset()
scsi: mpt3sas: Update driver version to 42.100.00.00
scsi: mpt3sas: Fix junk chars displayed while printing ChipName
scsi: ipr: Use kobj_to_dev()
scsi: mpi3mr: Fix a NULL vs IS_ERR() bug in mpi3mr_bsg_init()
scsi: bnx2fc: Avoid using get_cpu() in bnx2fc_cmd_alloc()
scsi: libfc: Remove get_cpu() semantics in fc_exch_em_alloc()
...
Hi Linus,
Please, pull the following patches that fix some -Wstringop-overflow
warnings when building with GCC-11. All the patches have been in
linux-next during the last development cycle.
This is part of the ongoing efforts to globally enable
-Wstringop-overflow.
Thanks
--
Gustavo
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Merge tag 'Wstringop-overflow-fixes-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull Wstringop-overflow fixes from Gustavo Silva:
"Fix some -Wstringop-overflow warnings when building with GCC-11. All
the patches have been in linux-next during the last development cycle.
This is part of the ongoing efforts to globally enable
-Wstringop-overflow"
* tag 'Wstringop-overflow-fixes-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
drm/i915: Fix -Wstringop-overflow warning in call to intel_read_wm_latency()
drm/amd/display: Fix Wstringop-overflow warnings in dc_link_dp.c
scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()
Core
----
- Support TCPv6 segmentation offload with super-segments larger than
64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP).
- Generalize skb freeing deferral to per-cpu lists, instead of
per-socket lists.
- Add a netdev statistic for packets dropped due to L2 address
mismatch (rx_otherhost_dropped).
- Continue work annotating skb drop reasons.
- Accept alternative netdev names (ALT_IFNAME) in more netlink
requests.
- Add VLAN support for AF_PACKET SOCK_RAW GSO.
- Allow receiving skb mark from the socket as a cmsg.
- Enable memcg accounting for veth queues, sysctl tables and IPv6.
BPF
---
- Add libbpf support for User Statically-Defined Tracing (USDTs).
- Speed up symbol resolution for kprobes multi-link attachments.
- Support storing typed pointers to referenced and unreferenced
objects in BPF maps.
- Add support for BPF link iterator.
- Introduce access to remote CPU map elements in BPF per-cpu map.
- Allow middle-of-the-road settings for the
kernel.unprivileged_bpf_disabled sysctl.
- Implement basic types of dynamic pointers e.g. to allow for
dynamically sized ringbuf reservations without extra memory copies.
Protocols
---------
- Retire port only listening_hash table, add a second bind table
hashed by port and address. Avoid linear list walk when binding
to very popular ports (e.g. 443).
- Add bridge FDB bulk flush filtering support allowing user space
to remove all FDB entries matching a condition.
- Introduce accept_unsolicited_na sysctl for IPv6 to implement
router-side changes for RFC9131.
- Support for MPTCP path manager in user space.
- Add MPTCP support for fallback to regular TCP for connections
that have never connected additional subflows or transmitted
out-of-sequence data (partial support for RFC8684 fallback).
- Avoid races in MPTCP-level window tracking, stabilize and improve
throughput.
- Support lockless operation of GRE tunnels with seq numbers enabled.
- WiFi support for host based BSS color collision detection.
- Add support for SO_TXTIME/SCM_TXTIME on CAN sockets.
- Support transmission w/o flow control in CAN ISOTP (ISO 15765-2).
- Support zero-copy Tx with TLS 1.2 crypto offload (sendfile).
- Allow matching on the number of VLAN tags via tc-flower.
- Add tracepoint for tcp_set_ca_state().
Driver API
----------
- Improve error reporting from classifier and action offload.
- Add support for listing line cards in switches (devlink).
- Add helpers for reporting page pool statistics with ethtool -S.
- Add support for reading clock cycles when using PTP virtual clocks,
instead of having the driver convert to time before reporting.
This makes it possible to report time from different vclocks.
- Support configuring low-latency Tx descriptor push via ethtool.
- Separate Clause 22 and Clause 45 MDIO accesses more explicitly.
New hardware / drivers
----------------------
- Ethernet:
- Marvell's Octeon NIC PCI Endpoint support (octeon_ep)
- Sunplus SP7021 SoC (sp7021_emac)
- Add support for Renesas RZ/V2M (in ravb)
- Add support for MediaTek mt7986 switches (in mtk_eth_soc)
- Ethernet PHYs:
- ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting)
- TI DP83TD510 PHY
- Microchip LAN8742/LAN88xx PHYs
- WiFi:
- Driver for pureLiFi X, XL, XC devices (plfxlc)
- Driver for Silicon Labs devices (wfx)
- Support for WCN6750 (in ath11k)
- Support Realtek 8852ce devices (in rtw89)
- Mobile:
- MediaTek T700 modems (Intel 5G 5000 M.2 cards)
- CAN:
- ctucanfd: add support for CTU CAN FD open-source IP core
from Czech Technical University in Prague
Drivers
-------
- Delete a number of old drivers still using virt_to_bus().
- Ethernet NICs:
- intel: support TSO on tunnels MPLS
- broadcom: support multi-buffer XDP
- nfp: support VF rate limiting
- sfc: use hardware tx timestamps for more than PTP
- mlx5: multi-port eswitch support
- hyper-v: add support for XDP_REDIRECT
- atlantic: XDP support (including multi-buffer)
- macb: improve real-time perf by deferring Tx processing to NAPI
- High-speed Ethernet switches:
- mlxsw: implement basic line card information querying
- prestera: add support for traffic policing on ingress and egress
- Embedded Ethernet switches:
- lan966x: add support for packet DMA (FDMA)
- lan966x: add support for PTP programmable pins
- ti: cpsw_new: enable bc/mc storm prevention
- Qualcomm 802.11ax WiFi (ath11k):
- Wake-on-WLAN support for QCA6390 and WCN6855
- device recovery (firmware restart) support
- support setting Specific Absorption Rate (SAR) for WCN6855
- read country code from SMBIOS for WCN6855/QCA6390
- enable keep-alive during WoWLAN suspend
- implement remain-on-channel support
- MediaTek WiFi (mt76):
- support Wireless Ethernet Dispatch offloading packet movement
between the Ethernet switch and WiFi interfaces
- non-standard VHT MCS10-11 support
- mt7921 AP mode support
- mt7921 IPv6 NS offload support
- Ethernet PHYs:
- micrel: ksz9031/ksz9131: cabletest support
- lan87xx: SQI support for T1 PHYs
- lan937x: add interrupt support for link detection
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core
----
- Support TCPv6 segmentation offload with super-segments larger than
64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP).
- Generalize skb freeing deferral to per-cpu lists, instead of
per-socket lists.
- Add a netdev statistic for packets dropped due to L2 address
mismatch (rx_otherhost_dropped).
- Continue work annotating skb drop reasons.
- Accept alternative netdev names (ALT_IFNAME) in more netlink
requests.
- Add VLAN support for AF_PACKET SOCK_RAW GSO.
- Allow receiving skb mark from the socket as a cmsg.
- Enable memcg accounting for veth queues, sysctl tables and IPv6.
BPF
---
- Add libbpf support for User Statically-Defined Tracing (USDTs).
- Speed up symbol resolution for kprobes multi-link attachments.
- Support storing typed pointers to referenced and unreferenced
objects in BPF maps.
- Add support for BPF link iterator.
- Introduce access to remote CPU map elements in BPF per-cpu map.
- Allow middle-of-the-road settings for the
kernel.unprivileged_bpf_disabled sysctl.
- Implement basic types of dynamic pointers e.g. to allow for
dynamically sized ringbuf reservations without extra memory copies.
Protocols
---------
- Retire port only listening_hash table, add a second bind table
hashed by port and address. Avoid linear list walk when binding to
very popular ports (e.g. 443).
- Add bridge FDB bulk flush filtering support allowing user space to
remove all FDB entries matching a condition.
- Introduce accept_unsolicited_na sysctl for IPv6 to implement
router-side changes for RFC9131.
- Support for MPTCP path manager in user space.
- Add MPTCP support for fallback to regular TCP for connections that
have never connected additional subflows or transmitted
out-of-sequence data (partial support for RFC8684 fallback).
- Avoid races in MPTCP-level window tracking, stabilize and improve
throughput.
- Support lockless operation of GRE tunnels with seq numbers enabled.
- WiFi support for host based BSS color collision detection.
- Add support for SO_TXTIME/SCM_TXTIME on CAN sockets.
- Support transmission w/o flow control in CAN ISOTP (ISO 15765-2).
- Support zero-copy Tx with TLS 1.2 crypto offload (sendfile).
- Allow matching on the number of VLAN tags via tc-flower.
- Add tracepoint for tcp_set_ca_state().
Driver API
----------
- Improve error reporting from classifier and action offload.
- Add support for listing line cards in switches (devlink).
- Add helpers for reporting page pool statistics with ethtool -S.
- Add support for reading clock cycles when using PTP virtual clocks,
instead of having the driver convert to time before reporting. This
makes it possible to report time from different vclocks.
- Support configuring low-latency Tx descriptor push via ethtool.
- Separate Clause 22 and Clause 45 MDIO accesses more explicitly.
New hardware / drivers
----------------------
- Ethernet:
- Marvell's Octeon NIC PCI Endpoint support (octeon_ep)
- Sunplus SP7021 SoC (sp7021_emac)
- Add support for Renesas RZ/V2M (in ravb)
- Add support for MediaTek mt7986 switches (in mtk_eth_soc)
- Ethernet PHYs:
- ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting)
- TI DP83TD510 PHY
- Microchip LAN8742/LAN88xx PHYs
- WiFi:
- Driver for pureLiFi X, XL, XC devices (plfxlc)
- Driver for Silicon Labs devices (wfx)
- Support for WCN6750 (in ath11k)
- Support Realtek 8852ce devices (in rtw89)
- Mobile:
- MediaTek T700 modems (Intel 5G 5000 M.2 cards)
- CAN:
- ctucanfd: add support for CTU CAN FD open-source IP core from
Czech Technical University in Prague
Drivers
-------
- Delete a number of old drivers still using virt_to_bus().
- Ethernet NICs:
- intel: support TSO on tunnels MPLS
- broadcom: support multi-buffer XDP
- nfp: support VF rate limiting
- sfc: use hardware tx timestamps for more than PTP
- mlx5: multi-port eswitch support
- hyper-v: add support for XDP_REDIRECT
- atlantic: XDP support (including multi-buffer)
- macb: improve real-time perf by deferring Tx processing to NAPI
- High-speed Ethernet switches:
- mlxsw: implement basic line card information querying
- prestera: add support for traffic policing on ingress and egress
- Embedded Ethernet switches:
- lan966x: add support for packet DMA (FDMA)
- lan966x: add support for PTP programmable pins
- ti: cpsw_new: enable bc/mc storm prevention
- Qualcomm 802.11ax WiFi (ath11k):
- Wake-on-WLAN support for QCA6390 and WCN6855
- device recovery (firmware restart) support
- support setting Specific Absorption Rate (SAR) for WCN6855
- read country code from SMBIOS for WCN6855/QCA6390
- enable keep-alive during WoWLAN suspend
- implement remain-on-channel support
- MediaTek WiFi (mt76):
- support Wireless Ethernet Dispatch offloading packet movement
between the Ethernet switch and WiFi interfaces
- non-standard VHT MCS10-11 support
- mt7921 AP mode support
- mt7921 IPv6 NS offload support
- Ethernet PHYs:
- micrel: ksz9031/ksz9131: cabletest support
- lan87xx: SQI support for T1 PHYs
- lan937x: add interrupt support for link detection"
* tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1809 commits)
ptp: ocp: Add firmware header checks
ptp: ocp: fix PPS source selector debugfs reporting
ptp: ocp: add .init function for sma_op vector
ptp: ocp: vectorize the sma accessor functions
ptp: ocp: constify selectors
ptp: ocp: parameterize input/output sma selectors
ptp: ocp: revise firmware display
ptp: ocp: add Celestica timecard PCI ids
ptp: ocp: Remove #ifdefs around PCI IDs
ptp: ocp: 32-bit fixups for pci start address
Revert "net/smc: fix listen processing for SMC-Rv2"
ath6kl: Use cc-disable-warning to disable -Wdangling-pointer
selftests/bpf: Dynptr tests
bpf: Add dynptr data slices
bpf: Add bpf_dynptr_read and bpf_dynptr_write
bpf: Dynptr support for ring buffers
bpf: Add bpf_dynptr_from_mem for local dynptrs
bpf: Add verifier support for dynptrs
bpf: Suppress 'passing zero to PTR_ERR' warning
bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack
...
- Appoint myself page cache maintainer
- Fix how scsicam uses the page cache
- Use the memalloc_nofs_save() API to replace AOP_FLAG_NOFS
- Remove the AOP flags entirely
- Remove pagecache_write_begin() and pagecache_write_end()
- Documentation updates
- Convert several address_space operations to use folios:
- is_dirty_writeback
- readpage becomes read_folio
- releasepage becomes release_folio
- freepage becomes free_folio
- Change filler_t to require a struct file pointer be the first argument
like ->read_folio
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Merge tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache
Pull page cache updates from Matthew Wilcox:
- Appoint myself page cache maintainer
- Fix how scsicam uses the page cache
- Use the memalloc_nofs_save() API to replace AOP_FLAG_NOFS
- Remove the AOP flags entirely
- Remove pagecache_write_begin() and pagecache_write_end()
- Documentation updates
- Convert several address_space operations to use folios:
- is_dirty_writeback
- readpage becomes read_folio
- releasepage becomes release_folio
- freepage becomes free_folio
- Change filler_t to require a struct file pointer be the first
argument like ->read_folio
* tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache: (107 commits)
nilfs2: Fix some kernel-doc comments
Appoint myself page cache maintainer
fs: Remove aops->freepage
secretmem: Convert to free_folio
nfs: Convert to free_folio
orangefs: Convert to free_folio
fs: Add free_folio address space operation
fs: Convert drop_buffers() to use a folio
fs: Change try_to_free_buffers() to take a folio
jbd2: Convert release_buffer_page() to use a folio
jbd2: Convert jbd2_journal_try_to_free_buffers to take a folio
reiserfs: Convert release_buffer_page() to use a folio
fs: Remove last vestiges of releasepage
ubifs: Convert to release_folio
reiserfs: Convert to release_folio
orangefs: Convert to release_folio
ocfs2: Convert to release_folio
nilfs2: Remove comment about releasepage
nfs: Convert to release_folio
jfs: Convert to release_folio
...
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Merge tag 'for-linus-5.19-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- decouple the PV interface from kernel internals in the Xen
scsifront/scsiback pv drivers
- harden the Xen scsifront PV driver against a malicious backend driver
- simplify Xen PV frontend driver ring page setup
- support Xen setups with multiple domains created at boot time to
tolerate Xenstore coming up late
- two small cleanup patches
* tag 'for-linus-5.19-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (29 commits)
xen: add support for initializing xenstore later as HVM domain
xen: sync xs_wire.h header with upstream xen
x86: xen: remove STACK_FRAME_NON_STANDARD from xen_cpuid
xen-blk{back,front}: Update contact points for buffer_squeeze_duration_ms and feature_persistent
xen/xenbus: eliminate xenbus_grant_ring()
xen/sndfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/usbfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/scsifront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/pcifront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/drmfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/tpmfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/netfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/blkfront: use xenbus_setup_ring() and xenbus_teardown_ring()
xen/xenbus: add xenbus_setup_ring() service function
xen: update ring.h
xen/shbuf: switch xen-front-pgdir-shbuf to use INVALID_GRANT_REF
xen/dmabuf: switch gntdev-dmabuf to use INVALID_GRANT_REF
xen/sound: switch xen_snd_front to use INVALID_GRANT_REF
xen/drm: switch xen_drm_front to use INVALID_GRANT_REF
xen/usb: switch xen-hcd to use INVALID_GRANT_REF
...
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Merge tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Here are the core block changes for 5.19. This contains:
- blk-throttle accounting fix (Laibin)
- Series removing redundant assignments (Michal)
- Expose bio cache via the bio_set, so that DM can use it (Mike)
- Finish off the bio allocation interface cleanups by dealing with
the weirdest member of the family. bio_kmalloc combines a kmalloc
for the bio and bio_vecs with a hidden bio_init call and magic
cleanup semantics (Christoph)
- Clean up the block layer API so that APIs consumed by file systems
are (almost) only struct block_device based, so that file systems
don't have to poke into block layer internals like the
request_queue (Christoph)
- Clean up the blk_execute_rq* API (Christoph)
- Clean up various lose end in the blk-cgroup code to make it easier
to follow in preparation of reworking the blkcg assignment for bios
(Christoph)
- Fix use-after-free issues in BFQ when processes with merged queues
get moved to different cgroups (Jan)
- BFQ fixes (Jan)
- Various fixes and cleanups (Bart, Chengming, Fanjun, Julia, Ming,
Wolfgang, me)"
* tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block: (83 commits)
blk-mq: fix typo in comment
bfq: Remove bfq_requeue_request_body()
bfq: Remove superfluous conversion from RQ_BIC()
bfq: Allow current waker to defend against a tentative one
bfq: Relax waker detection for shared queues
blk-cgroup: delete rcu_read_lock_held() WARN_ON_ONCE()
blk-throttle: Set BIO_THROTTLED when bio has been throttled
blk-cgroup: Remove unnecessary rcu_read_lock/unlock()
blk-cgroup: always terminate io.stat lines
block, bfq: make bfq_has_work() more accurate
block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
block: cleanup the VM accounting in submit_bio
block: Fix the bio.bi_opf comment
block: reorder the REQ_ flags
blk-iocost: combine local_stat and desc_stat to stat
block: improve the error message from bio_check_eod
block: allow passing a NULL bdev to bio_alloc_clone/bio_init_clone
block: remove superfluous calls to blkcg_bio_issue_init
kthread: unexport kthread_blkcg
blk-cgroup: cleanup blkcg_maybe_throttle_current
...
Fix referencing sense data when it is invalid. When the length of the data
segment is 0, there is no valid information in the rsp field, so
ufshpb_rsp_upiu() is returned without additional operation.
Link: https://lore.kernel.org/r/252651381.41652940482659.JavaMail.epsvc@epcpadp4
Fixes: 4b5f49079c ("scsi: ufs: ufshpb: L2P map management for HPB read")
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
adpt_post_wait_lock was declared and initialized by DEFINE_SPINLOCK so we
don't need to call spin_lock_init(). Drop the call.
Link: https://lore.kernel.org/r/1652176024-3981-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The variable 'op' is assigned a value and is never read. The variable is
not used and is redundant, remove it.
Link: https://lore.kernel.org/r/20220517092518.93159-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The memories for the slot should be observed to be written prior to
observing the slot as ready.
Prior to commit 26fc0ea74f ("scsi: libsas: Drop SAS_TASK_AT_INITIATOR"),
we had a spin_lock() + spin_unlock() immediately before marking the slot as
ready. The spin_unlock() - with release semantics - caused the slot memory
to be observed to be written.
Now that the spin_lock() + spin_unlock() is gone, use a smp_wmb().
Link: https://lore.kernel.org/r/1652774661-12935-1-git-send-email-john.garry@huawei.com
Fixes: 26fc0ea74f ("scsi: libsas: Drop SAS_TASK_AT_INITIATOR")
Reported-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add sysfs attributes for exposing target device details such as SAS
address, firmware device handle, and persistent ID for the
controller-attached devices and RAID volumes.
Link: https://lore.kernel.org/r/20220517115310.13062-3-sreekanth.reddy@broadcom.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add shost related sysfs attributes to display the controller's firmware
version, queue depth, number of requests, and number of reply queues. Also
add an attribute to set & get the logging_level.
Link: https://lore.kernel.org/r/20220517115310.13062-2-sreekanth.reddy@broadcom.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
As memset() of bmbx is immediately followed by a memcpy() where bmbx is the
destination, the memset() is redundant.
Link: https://lore.kernel.org/r/20220505143703.45441-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
As memset() of scmd->sense_buffer is immediately followed by a memcpy()
where scmd->sense_buffer is the destination. The memset() is redundant.
Link: https://lore.kernel.org/r/20220505143214.44908-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Return -ENOMEM instead of success if dma_alloc_coherent() fails.
Link: https://lore.kernel.org/r/YnOmMGHqCOtUCYQ1@kili
Fixes: 43ca110050 ("scsi: mpi3mr: Add support for PEL commands")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Removing an ATA device via sysfs means that the device may not be found
through re-scanning:
root@ubuntu:/home/john# lsscsi
[0:0:0:0] disk SanDisk LT0200MO P404 /dev/sda
[0:0:1:0] disk ATA HGST HUS724040AL A8B0 /dev/sdb
[0:0:8:0] enclosu 12G SAS Expander RevB -
root@ubuntu:/home/john# echo 1 > /sys/block/sdb/device/delete
root@ubuntu:/home/john# echo "- - -" > /sys/class/scsi_host/host0/scan
root@ubuntu:/home/john# lsscsi
[0:0:0:0] disk SanDisk LT0200MO P404 /dev/sda
[0:0:8:0] enclosu 12G SAS Expander RevB -
root@ubuntu:/home/john#
The problem is that the rescan of the device may conflict with the device
in being re-initialized, as follows:
- In the rescan we call hisi_sas_slave_alloc() in store_scan() ->
sas_user_scan() -> [__]scsi_scan_target() -> scsi_probe_and_add_lunc()
-> scsi_alloc_sdev() -> hisi_sas_slave_alloc() -> hisi_sas_init_device()
In hisi_sas_init_device() we issue an IT nexus reset for ATA devices
- That IT nexus causes the remote PHY to go down and this triggers a bcast
event
- In parallel libsas processes the bcast event, finds that the phy is down
and marks the device as gone
The hard reset issued in hisi_sas_init_device() is unncessary - as
described in the code comment - so remove it. Also set dev status as
HISI_SAS_DEV_NORMAL as the hisi_sas_init_device() call.
Link: https://lore.kernel.org/r/1652354134-171343-4-git-send-email-john.garry@huawei.com
Fixes: 36c6b7613e ("scsi: hisi_sas: Initialise devices in .slave_alloc callback")
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We have seen errors like this when a SATA device is probed:
[524.566298] hisi_sas_v3_hw 0000L74:02.0: erroneous completion iptt=4096 ...
[524.582827] sas: TMF task open reject failed 500e004aaaaaaaa00
Since commit 21c7e97247 ("scsi: hisi_sas: Disable SATA disk phy for
severe I_T nexus reset failure"), we issue an ATA softreset to disks after
a phy reset to ensure that they are in sound working order. If the
softreset is issued before the remote phy has come back up then the
softreset will fail (errors as above). Remedy this by waiting for the phy
to come back up after the reset.
Link: https://lore.kernel.org/r/1652354134-171343-3-git-send-email-john.garry@huawei.com
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create function sas_ata_wait_after_reset() from sas_ata_hard_reset() as
some LLDDs may want to check for a remote ATA phy is up after reset.
Link: https://lore.kernel.org/r/1652354134-171343-2-git-send-email-john.garry@huawei.com
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Terminate string after copying 16 bytes of ChipName data from Manufacturing
Page0 to prevent %s from printing junk characters.
Link: https://lore.kernel.org/r/20220511072621.30657-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Simplify scsifront's ring creation and removal via xenbus_setup_ring()
and xenbus_teardown_ring().
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
GRANT_INVALID_REF isn't used in scsifront, so remove it.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Instead of relying on a well behaved PV scsi backend verify all meta
data received from the backend and avoid multiple reads of the same
data from the shared ring page.
In case any illegal data from the backend is detected switch the
PV device to a new "error" state and deactivate it for further use.
Use the "lateeoi" variant for the event channel in order to avoid
event storms blocking the guest.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220428075323.12853-5-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Add a translation layer for the command result values.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220428075323.12853-4-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Use kobj_to_dev() instead of open-coding it.
Link: https://lore.kernel.org/r/20220510105113.1351891-1-chi.minghao@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The bsg_setup_queue() function does not return NULL. It returns error
pointers. Fix the check accordingly.
Link: https://lore.kernel.org/r/YnUf7RQl+A3tigWh@kili
Fixes: 4268fa7513 ("scsi: mpi3mr: Add bsg device support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Using get_cpu() leads to disabling preemption and in this context it is not
possible to acquire the following spinlock_t on PREEMPT_RT because it
becomes a sleeping lock.
Commit 0ea5c27583 ("[SCSI] bnx2fc: common free list for cleanup
commands") says that it is using get_cpu() as a fix in case the CPU is
preempted. While this might be true, the important part is that it is now
using the same CPU for locking and unlocking while previously it always
relied on smp_processor_id(). The date structure itself is protected with
a lock so it does not rely on CPU-local access.
Replace get_cpu() with raw_smp_processor_id() to obtain the current CPU
number which is used as an index for the per-CPU resource.
Link: https://lore.kernel.org/r/20220506105758.283887-5-bigeasy@linutronix.de
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The get_cpu() in fc_exch_em_alloc() was introduced in commit f018b73af6
("[SCSI] libfc, libfcoe, fcoe: use smp_processor_id() only when preempt
disabled") for no other reason than to simply use smp_processor_id()
without getting a warning, because everything is done with the pool->lock
held anyway. However, get_cpu(), by disabling preemption, does not play
well with PREEMPT_RT, particularly when acquiring a regular (and thus
sleepable) spinlock.
Therefore remove the get_cpu() and just use the unstable value as we will
have CPU locality guarantees next by taking the lock. The window of
migration, as noted by Sebastian, is small and even if it happens the
result is correct.
Link: https://lore.kernel.org/r/20211117025956.79616-2-dave@stgolabs.net
Link: https://lore.kernel.org/r/20220506105758.283887-4-bigeasy@linutronix.de
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The per-CPU statistics (struct fc_stats) is updated by getting a stable
per-CPU pointer via get_cpu() + per_cpu_ptr() and then performing the
increment. This can be optimized by using this_cpu_*() which will do
whatever is needed on the architecture to perform the update safe and
efficient. The read out of the individual value (fc_get_host_stats())
should be done by using READ_ONCE() instead of a plain-C access. The
difference is that READ_ONCE() will always perform a single access while
the plain-C access can be split by the compiler into two loads if it
appears beneficial. The usage of u64 has the side-effect that it is also
64bit wide on 32bit architectures and the read is always split into two
loads. The can lead to strange values if the read happens during an update
which alters both 32bit parts of the 64bit value. This can be circumvented
by either using a 32bit variables on 32bit architecures or extending the
statistics with a sequence counter.
Use this_cpu_*() API to update the statistics and READ_ONCE() to read it.
Link: https://lore.kernel.org/r/20220506105758.283887-3-bigeasy@linutronix.de
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
fcoe_get_paged_crc_eof() relies on the caller having preemption disabled to
ensure the per-CPU fcoe_percpu context remains valid throughout the
call. This is done by either holding spinlocks (such as bnx2fc_global_lock
or qedf_global_lock) or the get_cpu() from fcoe_alloc_paged_crc_eof(). This
last one breaks PREEMPT_RT semantics as there can be memory allocation and
end up sleeping in atomic contexts.
Introduce a local_lock_t to struct fcoe_percpu that will keep the non-RT
case the same, mapping to preempt_disable/enable, while RT will use a
per-CPU spinlock allowing the region to be preemptible but still maintain
CPU locality. The other users of fcoe_percpu are already safe in this
regard and do not require local_lock()ing.
Link: https://lore.kernel.org/r/20211117025956.79616-3-dave@stgolabs.net
Link: https://lore.kernel.org/r/20220506105758.283887-2-bigeasy@linutronix.de
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The code for gso_max_size was added originally to allow for debugging and
workaround of buggy devices that couldn't support TSO with blocks 64K in
size. The original reason for limiting it to 64K was because that was the
existing limits of IPv4 and non-jumbogram IPv6 length fields.
With the addition of Big TCP we can remove this limit and allow the value
to potentially go up to UINT_MAX and instead be limited by the tso_max_size
value.
So in order to support this we need to go through and clean up the
remaining users of the gso_max_size value so that the values will cap at
64K for non-TCPv6 flows. In addition we can clean up the GSO_MAX_SIZE value
so that 64K becomes GSO_LEGACY_MAX_SIZE and UINT_MAX will now be the upper
limit for GSO_MAX_SIZE.
v6: (edumazet) fixed a compile error if CONFIG_IPV6=n,
in a new sk_trim_gso_size() helper.
netif_set_tso_max_size() caps the requested TSO size
with GSO_MAX_SIZE.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The storvsc driver has special case code for running on the first released
versions of Hyper-V: 2008 and 2008 R2/Windows 7. These versions are now
out of support (except for extended security updates) and lack support
for performance features like multiple VMbus channels that are needed for
effective production usage of Linux guests.
The negotiation of the VMbus protocol versions required by these old
Hyper-V versions has been removed from the VMbus driver. So now remove
the handling of these VMbus protocol versions from the storvsc driver.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/1651509391-2058-3-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Complete all new I/O requests issued to an unrecoverable controller with
DID_ERROR status instead of returning the I/O requests with
SCSI_MLQUEUE_HOST_BUSY. This will prevent the infinite retries of the new
I/Os when a controller is in an unrecoverable state.
Link: https://lore.kernel.org/r/20220505184808.24049-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If any drive is missing during reset, the driver checks whether the device
is exposed to the OS. If it is, then it removes the device from the OS and
its own internal list. For hidden devices, even if they are found as
missing during reset, the driver is not removing them from its internal
list.
Modify driver to remove hidden devices from the driver's target device list
if they are missing during soft reset.
Link: https://lore.kernel.org/r/20220505184808.24049-2-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update lpfc version to 14.2.0.3
Link: https://lore.kernel.org/r/20220506035519.50908-13-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
NVMe I/O problems may be seen on IOMMU enabled platforms. Adapter I/Os
failing with transfer length mismatches.
The sg list processing routine for NVMe I/O is accessing the sg entry
directly for the length and address fields. On some IOMMU platforms,
contigous mappings are compressed to the first sg entry with the sum of the
lengths set to the sg entry dma_length field. The length fields are left
for later use by the unmap call. As such, the driver didn't see the actual
dma_length value, just the first entries length value. Drivers are to use
the sg_dma_length() and sg_dma_address() macros to reference the sg
entry. The macros select the proper length field (dma_length or length) to
reference.
Fix the offending code to use the sg_dma_xxx macros.
Link: https://lore.kernel.org/r/20220506035519.50908-12-jsmart2021@gmail.com
Tested-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Co-developed-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When configuring CMF management based on signals instead of FPINs, FPIN
alarm and warning statistics are not tracked.
Change the behavior so that FPIN alarms and warnings are always tracked
regardless of the configured mode.
Similar changes are made in the CMF signal stat accounting logic. Upon
receipt of a signal, only track signaled alarms and warnings. FPIN stats
should not be incremented upon receipt of a signal.
Link: https://lore.kernel.org/r/20220506035519.50908-11-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After a link up, it's possible for the switch to change FDMI support (e.g.
FDMI1 vs FDMI2 vs SmartSAN). If the switch reverts to FDMI1, then the
revert is currently not detected.
Additionally, when NPIV is configured, it's possible the physical port's
RHBA is unprocessed by the switch before reciept of an NPIV port issued
RPRT. This causes some switches vendors to reject the NPIV's RPRT.
Fix by reinitializing base FDMI mode on link up, and defer FDMI vport RPRT
submission until after confirming physical port's RHBA is completed.
Link: https://lore.kernel.org/r/20220506035519.50908-10-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently, VMID registration is configured via module parameters. This
could lead to VMID compatibility issues if two ports are connected to
different brands of switches, as the two brands implement VMID differently.
Make logical changes so that VMID registration is based on common service
parameters from FLOGI_ACC with fabric rather than module parameters.
Link: https://lore.kernel.org/r/20220506035519.50908-9-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During large NPIV port testing, it was sometimes seen that not all vports
would log back in to the target device.
There are instances when the fabric is slow to respond to a spam of GID_PT
requests and as a result the SLI PORT may abort the GID_PT request because
the fabric takes so long. lpfc_cmpl_ct_cmd_gid_pt() would enter the
lpfc_err_lost_link() logic and attempt to lpfc_els_flush_rscn(), which is
fine, but forgets to decrement the gidft_inp counter. This results in a
vport->gidft_inp never reaching 0 and never restarting discovery again.
Decrement vport->gidft_inp if lpfc_err_lost_link() is true for both
lpfc_cmpl_ct_cmd_gid_pt() and lpfc_cmpl_ct_cmd_gid_ft().
Increase logging info during RSCN timeout and lpfc_err_lost_link() events.
Link: https://lore.kernel.org/r/20220506035519.50908-8-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In GID_PT mode with lpfc_ns_query=1, a race condition between iterating the
vport->fc_nodes list in lpfc_rscn_recovery_check() and cleanup of an ndlp
can trigger a crash while processing the RSCN of another initiator from the
same zone.
During iteration of the vport->fc_nodes list, an ndlp is cleaned up and
released. lpfc_dequeue_node() is called from lpfc_cleanup_node() leading to
a bad ndlp dereference in lpfc_rscn_recovery_check().
Change list_for_each_entry() to list_for_each_entry_safe() in
lpfc_rscn_recovery_check() to protect against removal of an initiator ndlp,
while walking the vport->fc_nodes list.
Link: https://lore.kernel.org/r/20220506035519.50908-7-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Upon driver receipt of a CT cmd for type = 0xFA (Management Server) and
subtype = 0x11 (Fabric Device Management Interface), the driver is
responding with garbage CT cmd data when it should send a properly formed
RJT.
The __lpfc_prep_xmit_seq64_s4() routine was using the wrong buffer for the
reject.
Fix by converting the routine to use the buffer specified in the bde within
the wqe rather than the ill-set bmp element.
Link: https://lore.kernel.org/r/20220506035519.50908-6-jsmart2021@gmail.com
Fixes: 61910d6a52 ("scsi: lpfc: SLI path split: Refactor CT paths")
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After running a short external loopback test, when the external loopback is
removed and a normal cable inserted that is directly connected to a target
device, the system oops in the llpfc_set_rrq_active() routine.
When the loopback was inserted an FLOGI was transmit. As we're looped back,
we receive the FLOGI request. The FLOGI is ABTS'd as we recognize the same
wppn thus understand it's a loopback. However, as the ABTS sends address
information the port is not set to (fffffe), the ABTS is dropped on the
wire. A short 1 frame loopback test is run and completes before the ABTS
times out. The looback is unplugged and the new cable plugged in, and the
an FLOGI to the new device occurs and completes. Due to a mixup in ref
counting the completion of the new FLOGI releases the fabric ndlp. Then the
original ABTS completes and references the released ndlp generating the
oops.
Correct by no-op'ing the ABTS when in loopback mode (it will be dropped
anyway). Added a flag to track the mode to recognize when it should be
no-op'd.
Link: https://lore.kernel.org/r/20220506035519.50908-5-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During testing with repeated asynchronous resets of the target, an issue
was found when the driver issues a LOGO to disconnect its login and recover
all exchanges. The LOGO command takes a node reference but neglects to
remove it, keeping the node reference count artifically high.
Add a call to lpfc_nlp_put() to lpfc_nlp_logo_unreg() and move the mempool
free call to the routine exit along with the needed put. This is always
safe as this will not be the last reference removed as lpfc_unreg_rpi()
ensures there is an additional reference on the ndlp.
Link: https://lore.kernel.org/r/20220506035519.50908-4-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
