Commit Graph

12224 Commits

Author SHA1 Message Date
Linus Torvalds bd313968fd block-5.13-2021-05-07
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Merge tag 'block-5.13-2021-05-07' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - dasd spelling fixes (Bhaskar)

 - Limit bio max size on multi-page bvecs to the hardware limit, to
   avoid overly large bio's (and hence latencies). Originally queued for
   the merge window, but needed a fix and was dropped from the initial
   pull (Changheun)

 - NVMe pull request (Christoph):
      - reset the bdev to ns head when failover (Daniel Wagner)
      - remove unsupported command noise (Keith Busch)
      - misc passthrough improvements (Kanchan Joshi)
      - fix controller ioctl through ns_head (Minwoo Im)
      - fix controller timeouts during reset (Tao Chiu)

 - rnbd fixes/cleanups (Gioh, Md, Dima)

 - Fix iov_iter re-expansion (yangerkun)

* tag 'block-5.13-2021-05-07' of git://git.kernel.dk/linux-block:
  block: reexpand iov_iter after read/write
  nvmet: remove unsupported command noise
  nvme-multipath: reset bdev to ns head when failover
  nvme-pci: fix controller reset hang when racing with nvme_timeout
  nvme: move the fabrics queue ready check routines to core
  nvme: avoid memset for passthrough requests
  nvme: add nvme_get_ns helper
  nvme: fix controller ioctl through ns_head
  bio: limit bio max size
  RDMA/rtrs: fix uninitialized symbol 'cnt'
  s390: dasd: Mundane spelling fixes
  block/rnbd: Remove all likely and unlikely
  block/rnbd-clt: Check the return value of the function rtrs_clt_query
  block/rnbd: Fix style issues
  block/rnbd-clt: Change queue_depth type in rnbd_clt_session to size_t
2021-05-07 11:35:12 -07:00
Linus Torvalds 6f8ee8d36d Merge branch 'work.recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull another simple_recursive_removal() update from Al Viro:
 "I missed one case when simple_recursive_removal() was introduced"

* 'work.recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  qib_fs: switch to simple_recursive_removal()
2021-05-03 11:09:36 -07:00
Gioh Kim c646790a1f RDMA/rtrs: fix uninitialized symbol 'cnt'
rtrs_clt_rdma_cq_direct returns an ninitialized value in cnt
if there is no session. This patch makes rtrs_clt_rdma_cq_direct
returns a negative value for block layer not to try again.

Fixes: 2958a995ed ("block/rnbd-clt: Support polling mode for IO latency optimization")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20210429092741.266533-1-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-05-03 11:00:11 -06:00
Linus Torvalds f34b2cf178 RDMA merge window pull request
This is significantly bug fixes and general cleanups. The noteworthy new
 features are fairly small:
 
 - XRC support for HNS and improves RQ operations
 
 - Bug fixes and updates for hns, mlx5, bnxt_re, hfi1, i40iw, rxe, siw and
   qib
 
 - Quite a few general cleanups on spelling, error handling, static checker
   detections, etc
 
 - Increase the number of device ports supported beyond 255. High port
   count software switches now exist
 
 - Several bug fixes for rtrs
 
 - mlx5 Device Memory support for host controlled atomics
 
 - Report SRQ tables through to rdma-tool
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This is significantly bug fixes and general cleanups. The noteworthy
  new features are fairly small:

   - XRC support for HNS and improves RQ operations

   - Bug fixes and updates for hns, mlx5, bnxt_re, hfi1, i40iw, rxe, siw
     and qib

   - Quite a few general cleanups on spelling, error handling, static
     checker detections, etc

   - Increase the number of device ports supported beyond 255. High port
     count software switches now exist

   - Several bug fixes for rtrs

   - mlx5 Device Memory support for host controlled atomics

   - Report SRQ tables through to rdma-tool"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (145 commits)
  IB/qib: Remove redundant assignment to ret
  RDMA/nldev: Add copy-on-fork attribute to get sys command
  RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res
  RDMA/siw: Fix a use after free in siw_alloc_mr
  IB/hfi1: Remove redundant variable rcd
  RDMA/nldev: Add QP numbers to SRQ information
  RDMA/nldev: Return SRQ information
  RDMA/restrack: Add support to get resource tracking for SRQ
  RDMA/nldev: Return context information
  RDMA/core: Add CM to restrack after successful attachment to a device
  RDMA/cma: Skip device which doesn't support CM
  RDMA/rxe: Fix a bug in rxe_fill_ip_info()
  RDMA/mlx5: Expose private query port
  RDMA/mlx4: Remove an unused variable
  RDMA/mlx5: Fix type assignment for ICM DM
  IB/mlx5: Set right RoCE l3 type and roce version while deleting GID
  RDMA/i40iw: Fix error unwinding when i40iw_hmc_sd_one fails
  RDMA/cxgb4: add missing qpid increment
  IB/ipoib: Remove unnecessary struct declaration
  RDMA/bnxt_re: Get rid of custom module reference counting
  ...
2021-05-01 09:15:05 -07:00
Joao Martins 1d4b0166e3 RDMA/umem: batch page unpin in __ib_umem_release()
Use the newly added unpin_user_page_range_dirty_lock() for more quickly
unpinning a consecutive range of pages represented as compound pages.
This will also calculate number of pages to unpin (for the tail pages
which matching head page) and thus batch the refcount update.

Running a test program which calls memory range reg/unreg on a region 1G
in size and measures cost of both operations together (in a guest using
rxe) with THP and hugetlbfs:

Before:
  590 rounds in 5.003 sec: 8480.335 usec / round
  6898 rounds in 60.001 sec: 8698.367 usec / round

After:
  2688 rounds in 5.002 sec: 1860.786 usec / round
  32517 rounds in 60.001 sec: 1845.225 usec / round

Link: https://lkml.kernel.org/r/20210212130843.13865-5-joao.m.martins@oracle.com
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Doug Ledford <dledford@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-04-30 11:20:37 -07:00
Yang Li 6da7bda363 IB/qib: Remove redundant assignment to ret
Variable 'ret' is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant assignment
and can be removed.

Clean up the following clang-analyzer warning:

drivers/infiniband/hw/qib/qib_sd7220.c:690:2: warning: Value stored to
'ret' is never read [clang-analyzer-deadcode.DeadStores]

Link: https://lore.kernel.org/r/1619692940-104771-1-git-send-email-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-30 10:58:15 -03:00
Linus Torvalds 9d31d23389 Networking changes for 5.13.
Core:
 
  - bpf:
 	- allow bpf programs calling kernel functions (initially to
 	  reuse TCP congestion control implementations)
 	- enable task local storage for tracing programs - remove the
 	  need to store per-task state in hash maps, and allow tracing
 	  programs access to task local storage previously added for
 	  BPF_LSM
 	- add bpf_for_each_map_elem() helper, allowing programs to
 	  walk all map elements in a more robust and easier to verify
 	  fashion
 	- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
 	  redirection
 	- lpm: add support for batched ops in LPM trie
 	- add BTF_KIND_FLOAT support - mostly to allow use of BTF
 	  on s390 which has floats in its headers files
 	- improve BPF syscall documentation and extend the use of kdoc
 	  parsing scripts we already employ for bpf-helpers
 	- libbpf, bpftool: support static linking of BPF ELF files
 	- improve support for encapsulation of L2 packets
 
  - xdp: restructure redirect actions to avoid a runtime lookup,
 	improving performance by 4-8% in microbenchmarks
 
  - xsk: build skb by page (aka generic zerocopy xmit) - improve
 	performance of software AF_XDP path by 33% for devices
 	which don't need headers in the linear skb part (e.g. virtio)
 
  - nexthop: resilient next-hop groups - improve path stability
 	on next-hops group changes (incl. offload for mlxsw)
 
  - ipv6: segment routing: add support for IPv4 decapsulation
 
  - icmp: add support for RFC 8335 extended PROBE messages
 
  - inet: use bigger hash table for IP ID generation
 
  - tcp: deal better with delayed TX completions - make sure we don't
 	give up on fast TCP retransmissions only because driver is
 	slow in reporting that it completed transmitting the original
 
  - tcp: reorder tcp_congestion_ops for better cache locality
 
  - mptcp:
 	- add sockopt support for common TCP options
 	- add support for common TCP msg flags
 	- include multiple address ids in RM_ADDR
 	- add reset option support for resetting one subflow
 
  - udp: GRO L4 improvements - improve 'forward' / 'frag_list'
 	co-existence with UDP tunnel GRO, allowing the first to take
 	place correctly	even for encapsulated UDP traffic
 
  - micro-optimize dev_gro_receive() and flow dissection, avoid
 	retpoline overhead on VLAN and TEB GRO
 
  - use less memory for sysctls, add a new sysctl type, to allow using
 	u8 instead of "int" and "long" and shrink networking sysctls
 
  - veth: allow GRO without XDP - this allows aggregating UDP
 	packets before handing them off to routing, bridge, OvS, etc.
 
  - allow specifing ifindex when device is moved to another namespace
 
  - netfilter:
 	- nft_socket: add support for cgroupsv2
 	- nftables: add catch-all set element - special element used
 	  to define a default action in case normal lookup missed
 	- use net_generic infra in many modules to avoid allocating
 	  per-ns memory unnecessarily
 
  - xps: improve the xps handling to avoid potential out-of-bound
 	accesses and use-after-free when XPS change race with other
 	re-configuration under traffic
 
  - add a config knob to turn off per-cpu netdev refcnt to catch
 	underflows in testing
 
 Device APIs:
 
  - add WWAN subsystem to organize the WWAN interfaces better and
    hopefully start driving towards more unified and vendor-
    -independent APIs
 
  - ethtool:
 	- add interface for reading IEEE MIB stats (incl. mlx5 and
 	  bnxt support)
 	- allow network drivers to dump arbitrary SFP EEPROM data,
 	  current offset+length API was a poor fit for modern SFP
 	  which define EEPROM in terms of pages (incl. mlx5 support)
 
  - act_police, flow_offload: add support for packet-per-second
 	policing (incl. offload for nfp)
 
  - psample: add additional metadata attributes like transit delay
 	for packets sampled from switch HW (and corresponding egress
 	and policy-based sampling in the mlxsw driver)
 
  - dsa: improve support for sandwiched LAGs with bridge and DSA
 
  - netfilter:
 	- flowtable: use direct xmit in topologies with IP
 	  forwarding, bridging, vlans etc.
 	- nftables: counter hardware offload support
 
  - Bluetooth:
 	- improvements for firmware download w/ Intel devices
 	- add support for reading AOSP vendor capabilities
 	- add support for virtio transport driver
 
  - mac80211:
 	- allow concurrent monitor iface and ethernet rx decap
 	- set priority and queue mapping for injected frames
 
  - phy: add support for Clause-45 PHY Loopback
 
  - pci/iov: add sysfs MSI-X vector assignment interface
 	to distribute MSI-X resources to VFs (incl. mlx5 support)
 
 New hardware/drivers:
 
  - dsa: mv88e6xxx: add support for Marvell mv88e6393x -
 	11-port Ethernet switch with 8x 1-Gigabit Ethernet
 	and 3x 10-Gigabit interfaces.
 
  - dsa: support for legacy Broadcom tags used on BCM5325, BCM5365
 	and BCM63xx switches
 
  - Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
 
  - ath11k: support for QCN9074 a 802.11ax device
 
  - Bluetooth: Broadcom BCM4330 and BMC4334
 
  - phy: Marvell 88X2222 transceiver support
 
  - mdio: add BCM6368 MDIO mux bus controller
 
  - r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
 
  - mana: driver for Microsoft Azure Network Adapter (MANA)
 
  - Actions Semi Owl Ethernet MAC
 
  - can: driver for ETAS ES58X CAN/USB interfaces
 
 Pure driver changes:
 
  - add XDP support to: enetc, igc, stmmac
  - add AF_XDP support to: stmmac
 
  - virtio:
 	- page_to_skb() use build_skb when there's sufficient tailroom
 	  (21% improvement for 1000B UDP frames)
 	- support XDP even without dedicated Tx queues - share the Tx
 	  queues with the stack when necessary
 
  - mlx5:
 	- flow rules: add support for mirroring with conntrack,
 	  matching on ICMP, GTP, flex filters and more
 	- support packet sampling with flow offloads
 	- persist uplink representor netdev across eswitch mode
 	  changes
 	- allow coexistence of CQE compression and HW time-stamping
 	- add ethtool extended link error state reporting
 
  - ice, iavf: support flow filters, UDP Segmentation Offload
 
  - dpaa2-switch:
 	- move the driver out of staging
 	- add spanning tree (STP) support
 	- add rx copybreak support
 	- add tc flower hardware offload on ingress traffic
 
  - ionic:
 	- implement Rx page reuse
 	- support HW PTP time-stamping
 
  - octeon: support TC hardware offloads - flower matching on ingress
 	and egress ratelimitting.
 
  - stmmac:
 	- add RX frame steering based on VLAN priority in tc flower
 	- support frame preemption (FPE)
 	- intel: add cross time-stamping freq difference adjustment
 
  - ocelot:
 	- support forwarding of MRP frames in HW
 	- support multiple bridges
 	- support PTP Sync one-step timestamping
 
  - dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
 	learning, flooding etc.
 
  - ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
 	SC7280 SoCs)
 
  - mt7601u: enable TDLS support
 
  - mt76:
 	- add support for 802.3 rx frames (mt7915/mt7615)
 	- mt7915 flash pre-calibration support
 	- mt7921/mt7663 runtime power management fixes
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - bpf:
        - allow bpf programs calling kernel functions (initially to
          reuse TCP congestion control implementations)
        - enable task local storage for tracing programs - remove the
          need to store per-task state in hash maps, and allow tracing
          programs access to task local storage previously added for
          BPF_LSM
        - add bpf_for_each_map_elem() helper, allowing programs to walk
          all map elements in a more robust and easier to verify fashion
        - sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
          redirection
        - lpm: add support for batched ops in LPM trie
        - add BTF_KIND_FLOAT support - mostly to allow use of BTF on
          s390 which has floats in its headers files
        - improve BPF syscall documentation and extend the use of kdoc
          parsing scripts we already employ for bpf-helpers
        - libbpf, bpftool: support static linking of BPF ELF files
        - improve support for encapsulation of L2 packets

   - xdp: restructure redirect actions to avoid a runtime lookup,
     improving performance by 4-8% in microbenchmarks

   - xsk: build skb by page (aka generic zerocopy xmit) - improve
     performance of software AF_XDP path by 33% for devices which don't
     need headers in the linear skb part (e.g. virtio)

   - nexthop: resilient next-hop groups - improve path stability on
     next-hops group changes (incl. offload for mlxsw)

   - ipv6: segment routing: add support for IPv4 decapsulation

   - icmp: add support for RFC 8335 extended PROBE messages

   - inet: use bigger hash table for IP ID generation

   - tcp: deal better with delayed TX completions - make sure we don't
     give up on fast TCP retransmissions only because driver is slow in
     reporting that it completed transmitting the original

   - tcp: reorder tcp_congestion_ops for better cache locality

   - mptcp:
        - add sockopt support for common TCP options
        - add support for common TCP msg flags
        - include multiple address ids in RM_ADDR
        - add reset option support for resetting one subflow

   - udp: GRO L4 improvements - improve 'forward' / 'frag_list'
     co-existence with UDP tunnel GRO, allowing the first to take place
     correctly even for encapsulated UDP traffic

   - micro-optimize dev_gro_receive() and flow dissection, avoid
     retpoline overhead on VLAN and TEB GRO

   - use less memory for sysctls, add a new sysctl type, to allow using
     u8 instead of "int" and "long" and shrink networking sysctls

   - veth: allow GRO without XDP - this allows aggregating UDP packets
     before handing them off to routing, bridge, OvS, etc.

   - allow specifing ifindex when device is moved to another namespace

   - netfilter:
        - nft_socket: add support for cgroupsv2
        - nftables: add catch-all set element - special element used to
          define a default action in case normal lookup missed
        - use net_generic infra in many modules to avoid allocating
          per-ns memory unnecessarily

   - xps: improve the xps handling to avoid potential out-of-bound
     accesses and use-after-free when XPS change race with other
     re-configuration under traffic

   - add a config knob to turn off per-cpu netdev refcnt to catch
     underflows in testing

  Device APIs:

   - add WWAN subsystem to organize the WWAN interfaces better and
     hopefully start driving towards more unified and vendor-
     independent APIs

   - ethtool:
        - add interface for reading IEEE MIB stats (incl. mlx5 and bnxt
          support)
        - allow network drivers to dump arbitrary SFP EEPROM data,
          current offset+length API was a poor fit for modern SFP which
          define EEPROM in terms of pages (incl. mlx5 support)

   - act_police, flow_offload: add support for packet-per-second
     policing (incl. offload for nfp)

   - psample: add additional metadata attributes like transit delay for
     packets sampled from switch HW (and corresponding egress and
     policy-based sampling in the mlxsw driver)

   - dsa: improve support for sandwiched LAGs with bridge and DSA

   - netfilter:
        - flowtable: use direct xmit in topologies with IP forwarding,
          bridging, vlans etc.
        - nftables: counter hardware offload support

   - Bluetooth:
        - improvements for firmware download w/ Intel devices
        - add support for reading AOSP vendor capabilities
        - add support for virtio transport driver

   - mac80211:
        - allow concurrent monitor iface and ethernet rx decap
        - set priority and queue mapping for injected frames

   - phy: add support for Clause-45 PHY Loopback

   - pci/iov: add sysfs MSI-X vector assignment interface to distribute
     MSI-X resources to VFs (incl. mlx5 support)

  New hardware/drivers:

   - dsa: mv88e6xxx: add support for Marvell mv88e6393x - 11-port
     Ethernet switch with 8x 1-Gigabit Ethernet and 3x 10-Gigabit
     interfaces.

   - dsa: support for legacy Broadcom tags used on BCM5325, BCM5365 and
     BCM63xx switches

   - Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches

   - ath11k: support for QCN9074 a 802.11ax device

   - Bluetooth: Broadcom BCM4330 and BMC4334

   - phy: Marvell 88X2222 transceiver support

   - mdio: add BCM6368 MDIO mux bus controller

   - r8152: support RTL8153 and RTL8156 (USB Ethernet) chips

   - mana: driver for Microsoft Azure Network Adapter (MANA)

   - Actions Semi Owl Ethernet MAC

   - can: driver for ETAS ES58X CAN/USB interfaces

  Pure driver changes:

   - add XDP support to: enetc, igc, stmmac

   - add AF_XDP support to: stmmac

   - virtio:
        - page_to_skb() use build_skb when there's sufficient tailroom
          (21% improvement for 1000B UDP frames)
        - support XDP even without dedicated Tx queues - share the Tx
          queues with the stack when necessary

   - mlx5:
        - flow rules: add support for mirroring with conntrack, matching
          on ICMP, GTP, flex filters and more
        - support packet sampling with flow offloads
        - persist uplink representor netdev across eswitch mode changes
        - allow coexistence of CQE compression and HW time-stamping
        - add ethtool extended link error state reporting

   - ice, iavf: support flow filters, UDP Segmentation Offload

   - dpaa2-switch:
        - move the driver out of staging
        - add spanning tree (STP) support
        - add rx copybreak support
        - add tc flower hardware offload on ingress traffic

   - ionic:
        - implement Rx page reuse
        - support HW PTP time-stamping

   - octeon: support TC hardware offloads - flower matching on ingress
     and egress ratelimitting.

   - stmmac:
        - add RX frame steering based on VLAN priority in tc flower
        - support frame preemption (FPE)
        - intel: add cross time-stamping freq difference adjustment

   - ocelot:
        - support forwarding of MRP frames in HW
        - support multiple bridges
        - support PTP Sync one-step timestamping

   - dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
     learning, flooding etc.

   - ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
     SC7280 SoCs)

   - mt7601u: enable TDLS support

   - mt76:
        - add support for 802.3 rx frames (mt7915/mt7615)
        - mt7915 flash pre-calibration support
        - mt7921/mt7663 runtime power management fixes"

* tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2451 commits)
  net: selftest: fix build issue if INET is disabled
  net: netrom: nr_in: Remove redundant assignment to ns
  net: tun: Remove redundant assignment to ret
  net: phy: marvell: add downshift support for M88E1240
  net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
  net/sched: act_ct: Remove redundant ct get and check
  icmp: standardize naming of RFC 8335 PROBE constants
  bpf, selftests: Update array map tests for per-cpu batched ops
  bpf: Add batched ops support for percpu array
  bpf: Implement formatted output helpers with bstr_printf
  seq_file: Add a seq_bprintf function
  sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
  net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
  net: fix a concurrency bug in l2tp_tunnel_register()
  net/smc: Remove redundant assignment to rc
  mpls: Remove redundant assignment to err
  llc2: Remove redundant assignment to rc
  net/tls: Remove redundant initialization of record
  rds: Remove redundant assignment to nr_sig
  dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0
  ...
2021-04-29 11:57:23 -07:00
Linus Torvalds d72cd4ad41 SCSI misc on 20210428
This series consists of the usual driver updates (ufs, target, tcmu,
 smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx).  The major core
 change is using a sbitmap instead of an atomic for queue tracking.
 
 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 the usual driver updates (ufs, target, tcmu,
  smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx).

  The major core change is using a sbitmap instead of an atomic for
  queue tracking"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (412 commits)
  scsi: target: tcm_fc: Fix a kernel-doc header
  scsi: target: Shorten ALUA error messages
  scsi: target: Fix two format specifiers
  scsi: target: Compare explicitly with SAM_STAT_GOOD
  scsi: sd: Introduce a new local variable in sd_check_events()
  scsi: dc395x: Open-code status_byte(u8) calls
  scsi: 53c700: Open-code status_byte(u8) calls
  scsi: smartpqi: Remove unused functions
  scsi: qla4xxx: Remove an unused function
  scsi: myrs: Remove unused functions
  scsi: myrb: Remove unused functions
  scsi: mpt3sas: Fix two kernel-doc headers
  scsi: fcoe: Suppress a compiler warning
  scsi: libfc: Fix a format specifier
  scsi: aacraid: Remove an unused function
  scsi: core: Introduce enum scsi_disposition
  scsi: core: Modify the scsi_send_eh_cmnd() return value for the SDEV_BLOCK case
  scsi: core: Rename scsi_softirq_done() into scsi_complete()
  scsi: core: Remove an incorrect comment
  scsi: core: Make the scsi_alloc_sgtables() documentation more accurate
  ...
2021-04-28 17:22:10 -07:00
Linus Torvalds fc05860628 for-5.13/drivers-2021-04-27
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Merge tag 'for-5.13/drivers-2021-04-27' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:

 - MD changes via Song:
        - raid5 POWER fix
        - raid1 failure fix
        - UAF fix for md cluster
        - mddev_find_or_alloc() clean up
        - Fix NULL pointer deref with external bitmap
        - Performance improvement for raid10 discard requests
        - Fix missing information of /proc/mdstat

 - rsxx const qualifier removal (Arnd)

 - Expose allocated brd pages (Calvin)

 - rnbd via Gioh Kim:
        - Change maintainer
        - Change domain address of maintainers' email
        - Add polling IO mode and document update
        - Fix memory leak and some bug detected by static code analysis
          tools
        - Code refactoring

 - Series of floppy cleanups/fixes (Denis)

 - s390 dasd fixes (Julian)

 - kerneldoc fixes (Lee)

 - null_blk double free (Lv)

 - null_blk virtual boundary addition (Max)

 - Remove xsysace driver (Michal)

 - umem driver removal (Davidlohr)

 - ataflop fixes (Dan)

 - Revalidate disk removal (Christoph)

 - Bounce buffer cleanups (Christoph)

 - Mark lightnvm as deprecated (Christoph)

 - mtip32xx init cleanups (Shixin)

 - Various fixes (Tian, Gustavo, Coly, Yang, Zhang, Zhiqiang)

* tag 'for-5.13/drivers-2021-04-27' of git://git.kernel.dk/linux-block: (143 commits)
  async_xor: increase src_offs when dropping destination page
  drivers/block/null_blk/main: Fix a double free in null_init.
  md/raid1: properly indicate failure when ending a failed write request
  md-cluster: fix use-after-free issue when removing rdev
  nvme: introduce generic per-namespace chardev
  nvme: cleanup nvme_configure_apst
  nvme: do not try to reconfigure APST when the controller is not live
  nvme: add 'kato' sysfs attribute
  nvme: sanitize KATO setting
  nvmet: avoid queuing keep-alive timer if it is disabled
  brd: expose number of allocated pages in debugfs
  ataflop: fix off by one in ataflop_probe()
  ataflop: potential out of bounds in do_format()
  drbd: Fix fall-through warnings for Clang
  block/rnbd: Use strscpy instead of strlcpy
  block/rnbd-clt-sysfs: Remove copy buffer overlap in rnbd_clt_get_path_name
  block/rnbd-clt: Remove max_segment_size
  block/rnbd-clt: Generate kobject_uevent when the rnbd device state changes
  block/rnbd-srv: Remove unused arguments of rnbd_srv_rdma_ev
  Documentation/ABI/rnbd-clt: Add description for nr_poll_queues
  ...
2021-04-28 14:39:37 -07:00
Gal Pressman 6cc9e215eb RDMA/nldev: Add copy-on-fork attribute to get sys command
The new attribute indicates that the kernel copies DMA pages on fork,
hence libibverbs' fork support through madvise and MADV_DONTFORK is not
needed.

The introduced attribute is always reported as supported since the kernel
has the patch that added the copy-on-fork behavior. This allows the
userspace library to identify older vs newer kernel versions.  Extra care
should be taken when backporting this patch as it relies on the fact that
the copy-on-fork patch is merged, hence no check for support is added.

Don't backport this patch unless you also have the following series:
commit 70e806e4e6 ("mm: Do early cow for pinned pages during fork() for
ptes") and commit 4eae4efa2c ("hugetlb: do early cow when page pinned on
src mm").

Fixes: 70e806e4e6 ("mm: Do early cow for pinned pages during fork() for ptes")
Fixes: 4eae4efa2c ("hugetlb: do early cow when page pinned on src mm")
Link: https://lore.kernel.org/r/20210418121025.66849-1-galpress@amazon.com
Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-27 15:33:20 -03:00
Lv Yunlong 34b39efa5a RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res
In bnxt_qplib_alloc_res, it calls bnxt_qplib_alloc_dpi_tbl().  Inside
bnxt_qplib_alloc_dpi_tbl, dpit->dbr_bar_reg_iomem is freed via
pci_iounmap() in unmap_io error branch. After the callee returns err code,
bnxt_qplib_alloc_res calls
bnxt_qplib_free_res()->bnxt_qplib_free_dpi_tbl() in the fail branch. Then
dpit->dbr_bar_reg_iomem is freed in the second time by pci_iounmap().

My patch set dpit->dbr_bar_reg_iomem to NULL after it is freed by
pci_iounmap() in the first time, to avoid the double free.

Fixes: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://lore.kernel.org/r/20210426140614.6722-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-27 15:22:29 -03:00
Lv Yunlong 3093ee182f RDMA/siw: Fix a use after free in siw_alloc_mr
Our code analyzer reported a UAF.

In siw_alloc_mr(), it calls siw_mr_add_mem(mr,..). In the implementation of
siw_mr_add_mem(), mem is assigned to mr->mem and then mem is freed via
kfree(mem) if xa_alloc_cyclic() failed. Here, mr->mem still point to a
freed object. After, the execution continue up to the err_out branch of
siw_alloc_mr, and the freed mr->mem is used in siw_mr_drop_mem(mr).

My patch moves "mr->mem = mem" behind the if (xa_alloc_cyclic(..)<0) {}
section, to avoid the uaf.

Fixes: 2251334dca ("rdma/siw: application buffer management")
Link: https://lore.kernel.org/r/20210426011647.3561-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Reviewed-by: Bernard Metzler <bmt@zurich.ihm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-27 15:19:21 -03:00
Jiapeng Chong 2d085ee172 IB/hfi1: Remove redundant variable rcd
The variable rcd is being assigned a value from a calculation however the
variable is never read, so this redundant variable can be removed.

Cleans up the following clang-analyzer warning:

drivers/infiniband/hw/hfi1/affinity.c:986:3: warning: Value stored to
'rcd' is never read [clang-analyzer-deadcode.DeadStores].

Link: https://lore.kernel.org/r/1619346696-46300-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-27 15:18:25 -03:00
Linus Torvalds 57fa2369ab CFI on arm64 series for v5.13-rc1
- Clean up list_sort prototypes (Sami Tolvanen)
 
 - Introduce CONFIG_CFI_CLANG for arm64 (Sami Tolvanen)
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Merge tag 'cfi-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull CFI on arm64 support from Kees Cook:
 "This builds on last cycle's LTO work, and allows the arm64 kernels to
  be built with Clang's Control Flow Integrity feature. This feature has
  happily lived in Android kernels for almost 3 years[1], so I'm excited
  to have it ready for upstream.

  The wide diffstat is mainly due to the treewide fixing of mismatched
  list_sort prototypes. Other things in core kernel are to address
  various CFI corner cases. The largest code portion is the CFI runtime
  implementation itself (which will be shared by all architectures
  implementing support for CFI). The arm64 pieces are Acked by arm64
  maintainers rather than coming through the arm64 tree since carrying
  this tree over there was going to be awkward.

  CFI support for x86 is still under development, but is pretty close.
  There are a handful of corner cases on x86 that need some improvements
  to Clang and objtool, but otherwise works well.

  Summary:

   - Clean up list_sort prototypes (Sami Tolvanen)

   - Introduce CONFIG_CFI_CLANG for arm64 (Sami Tolvanen)"

* tag 'cfi-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  arm64: allow CONFIG_CFI_CLANG to be selected
  KVM: arm64: Disable CFI for nVHE
  arm64: ftrace: use function_nocfi for ftrace_call
  arm64: add __nocfi to __apply_alternatives
  arm64: add __nocfi to functions that jump to a physical address
  arm64: use function_nocfi with __pa_symbol
  arm64: implement function_nocfi
  psci: use function_nocfi for cpu_resume
  lkdtm: use function_nocfi
  treewide: Change list_sort to use const pointers
  bpf: disable CFI in dispatcher functions
  kallsyms: strip ThinLTO hashes from static functions
  kthread: use WARN_ON_FUNCTION_MISMATCH
  workqueue: use WARN_ON_FUNCTION_MISMATCH
  module: ensure __cfi_check alignment
  mm: add generic function_nocfi macro
  cfi: add __cficanonical
  add support for Clang CFI
2021-04-27 10:16:46 -07:00
Neta Ostrovsky c6c11ad3ab RDMA/nldev: Add QP numbers to SRQ information
Add QP numbers that are associated with the SRQ to the SRQ information.
The QPs are displayed in a range form.

Sample output:

$ rdma res show srq
dev ibp8s0f0 srqn 0 type BASIC pdn 3 comm [ib_ipoib]
dev ibp8s0f0 srqn 4 type BASIC lqpn 125-128,130-140 pdn 9 pid 3581 comm ibv_srq_pingpon
dev ibp8s0f0 srqn 5 type BASIC lqpn 141-156 pdn 10 pid 3584 comm ibv_srq_pingpon
dev ibp8s0f0 srqn 6 type BASIC lqpn 157-172 pdn 11 pid 3590 comm ibv_srq_pingpon
dev ibp8s0f1 srqn 0 type BASIC pdn 3 comm [ib_ipoib]
dev ibp8s0f1 srqn 1 type BASIC lqpn 329-344 pdn 4 pid 3586 comm ibv_srq_pingpon

$ rdma res show srq lqpn 126-141
dev ibp8s0f0 srqn 4 type BASIC lqpn 126-128,130-140 pdn 9 pid 3581 comm ibv_srq_pingpon
dev ibp8s0f0 srqn 5 type BASIC lqpn 141 pdn 10 pid 3584 comm ibv_srq_pingpon

$ rdma res show srq lqpn 127
dev ibp8s0f0 srqn 4 type BASIC lqpn 127 pdn 9 pid 3581 comm ibv_srq_pingpon

Link: https://lore.kernel.org/r/79a4bd4caec2248fd9583cccc26786af8e4414fc.1618753110.git.leonro@nvidia.com
Signed-off-by: Neta Ostrovsky <netao@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-22 10:30:27 -03:00
Neta Ostrovsky 391c6bd5ac RDMA/nldev: Return SRQ information
Extend the RDMA nldev return a SRQ information, like SRQ number, SRQ type,
PD number, CQ number and process ID that created that SRQ.

Sample output:

$ rdma res show srq
dev ibp8s0f0 srqn 0 type BASIC pdn 3 comm [ib_ipoib]
dev ibp8s0f0 srqn 4 type BASIC pdn 9 pid 3581 comm ibv_srq_pingpon
dev ibp8s0f0 srqn 5 type BASIC pdn 10 pid 3584 comm ibv_srq_pingpon
dev ibp8s0f0 srqn 6 type BASIC pdn 11 pid 3590 comm ibv_srq_pingpon
dev ibp8s0f1 srqn 0 type BASIC pdn 3 comm [ib_ipoib]
dev ibp8s0f1 srqn 1 type BASIC pdn 4 pid 3586 comm ibv_srq_pingpon

Link: https://lore.kernel.org/r/322f9210b95812799190dd4a0fb92f3a3bba0333.1618753110.git.leonro@nvidia.com
Signed-off-by: Neta Ostrovsky <netao@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-22 10:30:27 -03:00
Neta Ostrovsky 48f8a70e89 RDMA/restrack: Add support to get resource tracking for SRQ
In order to track SRQ resources, a new restrack object is initialized and
added to the resource tracking database.

Link: https://lore.kernel.org/r/0db71c409f24f2f6b019bf8797a8fed96fe7079c.1618753110.git.leonro@nvidia.com
Signed-off-by: Neta Ostrovsky <netao@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-22 10:30:27 -03:00
Neta Ostrovsky 12ce208f40 RDMA/nldev: Return context information
Extend the RDMA nldev return a context information, like ctx number and
process ID that created that context. This functionality is helpful to
find orphan contexts that are not closed for some reason.

Sample output:

$ rdma res show ctx
dev ibp8s0f0 ctxn 0 pid 980 comm ibv_rc_pingpong
dev ibp8s0f0 ctxn 1 pid 981 comm ibv_rc_pingpong
dev ibp8s0f0 ctxn 2 pid 992 comm ibv_rc_pingpong
dev ibp8s0f1 ctxn 0 pid 984 comm ibv_rc_pingpong
dev ibp8s0f1 ctxn 1 pid 987 comm ibv_rc_pingpong

$ rdma res show ctx dev ibp8s0f1
dev ibp8s0f1 ctxn 0 pid 984 comm ibv_rc_pingpong
dev ibp8s0f1 ctxn 1 pid 987 comm ibv_rc_pingpong

Link: https://lore.kernel.org/r/5c956acfeac4e9d532988575f3da7d64cb449374.1618753110.git.leonro@nvidia.com
Signed-off-by: Neta Ostrovsky <netao@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-22 10:30:27 -03:00
Shay Drory cb5cd0ea4e RDMA/core: Add CM to restrack after successful attachment to a device
The device attach triggers addition of CM_ID to the restrack DB.
However, when error occurs, we releasing this device, but defer CM_ID
release. This causes to the situation where restrack sees CM_ID that
is not valid anymore.

As a solution, add the CM_ID to the resource tracking DB only after the
attachment is finished.

Found by syzcaller:
infiniband syz0: added syz_tun
rdma_rxe: ignoring netdev event = 10 for syz_tun
infiniband syz0: set down
infiniband syz0: ib_query_port failed (-19)
restrack: ------------[ cut here    ]------------
infiniband syz0: BUG: RESTRACK detected leak of resources
restrack: User CM_ID object allocated by syz-executor716 is not freed
restrack: ------------[ cut here    ]------------

Fixes: b09c4d7012 ("RDMA/restrack: Improve readability in task name management")
Link: https://lore.kernel.org/r/ab93e56ba831eac65c322b3256796fa1589ec0bb.1618753862.git.leonro@nvidia.com
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-21 20:53:14 -03:00
Parav Pandit 4d51c3d9de RDMA/cma: Skip device which doesn't support CM
A switchdev RDMA device do not support IB CM. When such device is added to
the RDMA CM's device list, when application invokes rdma_listen(), cma
attempts to listen to such device, however it has IB CM attribute
disabled.

Due to this, rdma_listen() call fails to listen for other non switchdev
devices as well.

A below error message can be seen.

infiniband mlx5_0: RDMA CMA: cma_listen_on_dev, error -38

A failing call flow is below.

  cma_listen_on_all()
    cma_listen_on_dev()
      _cma_attach_to_dev()
        rdma_listen() <- fails on a specific switchdev device

This is because rdma_listen() is hardwired to only work with iwarp or IB
CM compatible devices.

Hence, when a IB device doesn't support IB CM or IW CM, avoid adding such
device to the cma list so rdma_listen() can't even be called.

Link: https://lore.kernel.org/r/f9cac00d52864ea7c61295e43fb64cf4db4fdae6.1618753862.git.leonro@nvidia.com
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-21 20:27:52 -03:00
Bob Pearson 45062f4415 RDMA/rxe: Fix a bug in rxe_fill_ip_info()
Fix a bug in rxe_fill_ip_info() which was attempting to convert from
RDMA_NETWORK_XXX to RXE_NETWORK_XXX. .._IPV6 should have mapped to .._IPV6
not .._IPV4.

Fixes: edebc8407b ("RDMA/rxe: Fix small problem in network_type patch")
Link: https://lore.kernel.org/r/20210421035952.4892-1-rpearson@hpe.com
Suggested-by: Frank Zago <frank.zago@hpe.com>
Signed-off-by: Bob Pearson <rpearson@hpe.com>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-21 16:09:04 -03:00
Mark Bloch 9a89d3ad6d RDMA/mlx5: Expose private query port
Expose a non standard query port via IOCTL that will be used to expose
port attributes that are specific to mlx5 devices.

The new interface receives a port number to query and returns a structure
that contains the available attributes for that port.  This will be used
to fill the gap between pure DEVX use cases and use cases where a kernel
needs to inform userspace about various kernel driver configurations that
userspace must use in order to work correctly.

Flags is used to indicate which fields are valid on return.

MLX5_IB_UAPI_QUERY_PORT_VPORT:
	The vport number of the queered port.

MLX5_IB_UAPI_QUERY_PORT_VPORT_VHCA_ID:
	The VHCA ID of the vport of the queered port.

MLX5_IB_UAPI_QUERY_PORT_VPORT_STEERING_ICM_RX:
	The vport's RX ICM address used for sw steering.

MLX5_IB_UAPI_QUERY_PORT_VPORT_STEERING_ICM_TX:
	The vport's TX ICM address used for sw steering.

MLX5_IB_UAPI_QUERY_PORT_VPORT_REG_C0:
	The metadata used to tag egress packets of the vport.

MLX5_IB_UAPI_QUERY_PORT_ESW_OWNER_VHCA_ID:
	The E-Switch owner vhca id of the vport.

Link: https://lore.kernel.org/r/6e2ef13e5a266a6c037eb0105eb1564c7bb52f23.1618743394.git.leonro@nvidia.com
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-20 17:00:18 -03:00
Christophe JAILLET 054bd5aeac RDMA/mlx4: Remove an unused variable
'in6' is unused. It is just declared and filled-in.  It can be removed.

This is a left over from commit 5ea8bbfc49
("mlx4: Implement IP based gids support for RoCE/SRIOV")

Link: https://lore.kernel.org/r/413dc6e2ea9d85bda1131bbd6a730b7620839eab.1618932283.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-20 16:32:33 -03:00
Jack Wang 503438a4f2 block/rnbd-clt: Remove max_segment_size
We always map with SZ_4K, so do not need max_segment_size.

Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20210419073722.15351-18-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-04-20 08:59:04 -06:00
Gioh Kim c81cba8551 block/rnbd-srv: Remove unused arguments of rnbd_srv_rdma_ev
struct rtrs_srv is not used when handling rnbd_srv_rdma_ev messages, so
cleaned up
rdma_ev function pointer in rtrs_srv_ops also is changed.

Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Aleksei Marov <aleksei.marov@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20210419073722.15351-16-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-04-20 08:59:04 -06:00
Gioh Kim 2958a995ed block/rnbd-clt: Support polling mode for IO latency optimization
RNBD can make double-queues for irq-mode and poll-mode.
For example, on 4-CPU system 8 request-queues are created,
4 for irq-mode and 4 for poll-mode.
If the IO has HIPRI flag, the block-layer will call .poll function
of RNBD. Then IO is sent to the poll-mode queue.
Add optional nr_poll_queues argument for map_devices interface.

To support polling of RNBD, RTRS client creates connections
for both of irq-mode and direct-poll-mode.

For example, on 4-CPU system it could've create 5 connections:
con[0] => user message (softirq cq)
con[1:4] => softirq cq

After this patch, it can create 9 connections:
con[0] => user message (softirq cq)
con[1:4] => softirq cq
con[5:8] => DIRECT-POLL cq

Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20210419073722.15351-14-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-04-20 08:59:04 -06:00
Gioh Kim 9f455eeafd block/rnbd-clt: Replace {NO_WAIT,WAIT} with RTRS_PERMIT_{WAIT,NOWAIT}
They are defined with the same value and similar meaning, let's remove
one of them, then we can remove {WAIT,NOWAIT}.

Also change the type of 'wait' from 'int' to 'enum wait_type' to make
it clear.

Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Guoqing Jiang <guoqing.jiang@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20210419073722.15351-9-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-04-20 08:59:04 -06:00
Maor Gottlieb 982b7c140e RDMA/mlx5: Fix type assignment for ICM DM
We should hold the UAPI DM type in the base struct and not the internal
mlx5 type.

Fixes: 251b9d7887 ("RDMA/mlx5: Re-organize the DM code")
Link: https://lore.kernel.org/r/58dedbd5c132660f808e59166d434e2eaa6ecf7a.1618753425.git.leonro@nvidia.com
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-20 09:42:38 -03:00
Parav Pandit dedbc2d358 IB/mlx5: Set right RoCE l3 type and roce version while deleting GID
Currently when GID is deleted, it zero out all the fields of the RoCE
address in the SET_ROCE_ADDRESS command for a specified index.

roce_version = 0 means RoCEv1 in the SET_ROCE_ADDRESS command.

This assumes that device has RoCEv1 always enabled which is not always
correct. For example Subfunction does not support RoCEv1.

Due to this assumption a previously added RoCEv2 GID is always deleted as
RoCEv1 GID. This results in a below syndrome:

   mlx5_core.sf mlx5_core.sf.4: mlx5_cmd_check:777:(pid 4256): SET_ROCE_ADDRESS(0x761) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x12822d)

Hence set the right RoCE version during GID deletion provided by the core.

Link: https://lore.kernel.org/r/d3f54129c90ca329caf438dbe31875d8ad08d91a.1618753425.git.leonro@nvidia.com
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-20 09:41:10 -03:00
Sindhu Devale 783a11bf24 RDMA/i40iw: Fix error unwinding when i40iw_hmc_sd_one fails
When i40iw_hmc_sd_one fails, chunk is freed without the deletion of chunk
entry in the PBLE info list.

Fix it by adding the chunk entry to the PBLE info list only after
successful addition of SD in i40iw_hmc_sd_one.

This fixes a static checker warning reported here:
  https://lore.kernel.org/linux-rdma/YHV4CFXzqTm23AOZ@mwanda/

Fixes: 9715830157 ("i40iw: add pble resource files")
Link: https://lore.kernel.org/r/20210416002104.323-1-shiraz.saleem@intel.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-20 09:36:52 -03:00
Potnuri Bharat Teja 3a66843859 RDMA/cxgb4: add missing qpid increment
missing qpid increment leads to skipping few qpids while allocating QP.
This eventually leads to adapter running out of qpids after establishing
fewer connections than it actually supports.
Current patch increments the qpid correctly.

Fixes: cfdda9d764 ("RDMA/cxgb4: Add driver for Chelsio T4 RNIC")
Link: https://lore.kernel.org/r/20210415151422.9139-1-bharat@chelsio.com
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-20 09:36:00 -03:00
Wan Jiabing 9480fd557b IB/ipoib: Remove unnecessary struct declaration
struct ipoib_cm_tx is defined at 245th line.  And the definition is
independent on the MACRO.  The declaration here is unnecessary. Remove it.

Link: https://lore.kernel.org/r/20210415092124.27684-1-wanjiabing@vivo.com
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-20 09:34:39 -03:00
Leon Romanovsky 1900357e75 RDMA/bnxt_re: Get rid of custom module reference counting
Instead of manually messing with parent driver module reference counting
rely on export symbol mechanism to ensure that proper probe/remove chain
is performed.

Link: https://lore.kernel.org/r/20210401065715.565226-4-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-By: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-19 14:57:03 -03:00
Leon Romanovsky bcf9ee0520 RDMA/bnxt_re: Create direct symbol link between bnxt modules
Convert indirect probe call to its direct equivalent to create a symbol
link between RDMA and netdev modules. This will give us an ability to
remove custom module reference counting that doesn't belong to the driver.

Link: https://lore.kernel.org/r/20210401065715.565226-3-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-By: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-19 14:57:03 -03:00
Leon Romanovsky ae9884829c RDMA/bnxt_re: Depend on bnxt ethernet driver and not blindly select it
The "select" kconfig keyword provides reverse dependency, however it
doesn't check that selected symbol meets its own dependencies. Usually
"select" is used for non-visible symbols, so instead of trying to keep
dependencies in sync with BNXT ethernet driver, simply "depends on" it,
like Kconfig documentation suggest.

* CONFIG_PCI is already required by BNXT
* CONFIG_NETDEVICES and CONFIG_ETHERNET are needed to chose BNXT

Link: https://lore.kernel.org/r/20210401065715.565226-2-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-By: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-19 14:57:03 -03:00
Manjunath Patil 338a010cb6 IB/ipoib: Improve latency in ipoib/cm connection formation
Currently IPoIB connected mode queries the device to get the pkey table
entry during connection formation. This will increase the time taken to
form the connection, especially when limited pkeys are in use.  This gets
worse when multiple connection attempts are done in parallel.

Since ipoib interfaces are locked to a single pkey, use the pkey index
that was determined at link up time instead of searching for anything.

This improved the latency from 500ms to 1ms on an internal setup.

Link: https://lore.kernel.org/r/1618338965-16717-1-git-send-email-manjunath.b.patil@oracle.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Manjunath Patil <manjunath.b.patil@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-19 14:55:46 -03:00
Håkon Bugge 65d4801ae4 RDMA/core: Unify RoCE check and re-factor code
In cm_req_handler(), unify the check for RoCE and re-factor to avoid
one test.

Link: https://lore.kernel.org/r/1617705423-15570-1-git-send-email-haakon.bugge@oracle.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Fixes: 8f97486024 ("IB/cm: Reduce dependency on gid attribute ndev check")
Fixes: 194f64a3ca ("RDMA/core: Fix corrupted SL on passive side")
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-19 12:56:53 -03:00
Jack Wang 3ccbd9333f RDMA/ipoib: Print a message if only child interface is UP
When "enhanced IPoIB" is enabled for CX-5 devices it requires the parent
device to be UP, otherwise the child devices won't work.

Thus add a debug message to give admin a hint when only the child
interface is UP but parent interface is not.

Link: https://lore.kernel.org/r/20210408093215.24023-1-jinpu.wang@ionos.com
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 20:06:34 -03:00
Xi Wang 719d13415f RDMA/hns: Remove duplicated hem page size config code
Remove duplicated code for setting hem page size in PF and VF.

Link: https://lore.kernel.org/r/1617715514-29039-7-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 20:01:28 -03:00
Wei Xu 0b567cde9d RDMA/hns: Enable RoCE on virtual functions
Introduce the VF support by adding code changes to allow VF PCI device
initialization, assgining the reserved resource of the PF to the active
VFs, setting the default abilities, applying the interruptions, resetting
and reducing the default QP/GID number to aovid exceeding the hardware
limitation.

Link: https://lore.kernel.org/r/1617715514-29039-6-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 20:01:28 -03:00
Wei Xu accfc1affe RDMA/hns: Set parameters of all the functions belong to a PF
Switch parameters of all functions belong to a PF should be set including
VFs.

Link: https://lore.kernel.org/r/1617715514-29039-5-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 20:01:28 -03:00
Wei Xu 2a424e1d11 RDMA/hns: Reserve the resource for the VFs
Query the resource including EQC/SMAC/SGID from the firmware in the PF and
distribute fairly among all the functions belong to the PF.

Link: https://lore.kernel.org/r/1617715514-29039-4-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 20:01:28 -03:00
Wei Xu 5b03a4226c RDMA/hns: Query the number of functions supported by the PF
Query how many functions are supported by the PF from the FW and store it
in the hns_roce_dev structure which will be used to support the
configuration of virtual functions.

Link: https://lore.kernel.org/r/1617715514-29039-3-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 20:01:27 -03:00
Xi Wang 0fb46da051 RDMA/hns: Simplify function's resource related command
Use hr_reg_write/read() to simplify codes about configuring function's
resource. And because the design of PF/VF fields is same, they can be
defined only once.

Link: https://lore.kernel.org/r/1617715514-29039-2-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 20:01:27 -03:00
Gioh Kim 7c71f0d12e RDMA/rtrs-clt: Simplify error message
Two error messages are only different message but have common
code to generate the path string.

Link: https://lore.kernel.org/r/20210406123639.202899-4-gi-oh.kim@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 19:51:34 -03:00
Gioh Kim 42cdc1909d RDMA/rtrs-srv: More debugging info when fail to send reply
It does not help to debug if it only print error message
without any debugging information which session and connection
the error happened.

Link: https://lore.kernel.org/r/20210406123639.202899-3-gi-oh.kim@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 19:51:34 -03:00
Gioh Kim 2f37b01725 RDMA/rtrs-clt: Print more info when an error happens
Client prints only error value and it is not enough for debugging.

1. When client receives an error from server: the client does not only
   print the error value but also more information of server connection.

2. When client failes to send IO: the client gets an error from RDMA
   layer. It also print more information of server connection.

Link: https://lore.kernel.org/r/20210406123639.202899-2-gi-oh.kim@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 19:51:34 -03:00
Gioh Kim cc85392bcd RDMA/rtrs-clt: New sysfs attribute to print the latency of each path
It shows the latest latency that the client checked when sending the
heart-beat.

Link: https://lore.kernel.org/r/20210407113444.150961-3-gi-oh.kim@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 19:44:54 -03:00
Gioh Kim dc3b66a0ce RDMA/rtrs-clt: Add a minimum latency multipath policy
This patch adds new multipath policy: min-latency.  Client checks the
latency of each path when it sends the heart-beat.  And it sends IO to the
path with the minimum latency.

Link: https://lore.kernel.org/r/20210407113444.150961-2-gi-oh.kim@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-13 19:44:54 -03:00
Jason Gunthorpe fe73f96e7b Merge branch 'mlx5_memic_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Maor Gottlieb says:
====================
This series from Maor extends MEMIC to support atomic operations from the
host in addition to already supported regular read/write.
====================

* 'memic_ops':
  RDMA/mlx5: Expose UAPI to query DM
  RDMA/mlx5: Add support in MEMIC operations
  RDMA/mlx5: Add support to MODIFY_MEMIC command
  RDMA/mlx5: Re-organize the DM code
  RDMA/mlx5: Move all DM logic to separate file
  RDMA/uverbs: Make UVERBS_OBJECT_METHODS to consider line number
  net/mlx5: Add MEMIC operations related bits
2021-04-13 19:37:17 -03:00