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2016-05-28Merge branch 'for-next' of ↵Linus Torvalds30-683/+5571
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "Here are the outstanding target pending updates for v4.7-rc1. The highlights this round include: - Allow external PR/ALUA metadata path be defined at runtime via top level configfs attribute (Lee) - Fix target session shutdown bug for ib_srpt multi-channel (hch) - Make TFO close_session() and shutdown_session() optional (hch) - Drop se_sess->sess_kref + convert tcm_qla2xxx to internal kref (hch) - Add tcm_qla2xxx endpoint attribute for basic FC jammer (Laurence) - Refactor iscsi-target RX/TX PDU encode/decode into common code (Varun) - Extend iscsit_transport with xmit_pdu, release_cmd, get_rx_pdu, validate_parameters, and get_r2t_ttt for generic ISO offload (Varun) - Initial merge of cxgb iscsi-segment offload target driver (Varun) The bulk of the changes are Chelsio's new driver, along with a number of iscsi-target common code improvements made by Varun + Co along the way" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (29 commits) iscsi-target: Fix early sk_data_ready LOGIN_FLAGS_READY race cxgbit: Use type ISCSI_CXGBIT + cxgbit tpg_np attribute iscsi-target: Convert transport drivers to signal rdma_shutdown iscsi-target: Make iscsi_tpg_np driver show/store use generic code tcm_qla2xxx Add SCSI command jammer/discard capability iscsi-target: graceful disconnect on invalid mapping to iovec target: need_to_release is always false, remove redundant check and kfree target: remove sess_kref and ->shutdown_session iscsi-target: remove usage of ->shutdown_session tcm_qla2xxx: introduce a private sess_kref target: make close_session optional target: make ->shutdown_session optional target: remove acl_stop target: consolidate and fix session shutdown cxgbit: add files for cxgbit.ko iscsi-target: export symbols iscsi-target: call complete on conn_logout_comp iscsi-target: clear tx_thread_active iscsi-target: add new offload transport type iscsi-target: use conn_transport->transport_type in text rsp ...
2016-05-20Merge tag 'for-linus' of ↵Linus Torvalds2-15/+19
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "Primary 4.7 merge window changes - Updates to the new Intel X722 iWARP driver - Updates to the hfi1 driver - Fixes for the iw_cxgb4 driver - Misc core fixes - Generic RDMA READ/WRITE API addition - SRP updates - Misc ipoib updates - Minor mlx5 updates" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (148 commits) IB/mlx5: Fire the CQ completion handler from tasklet net/mlx5_core: Use tasklet for user-space CQ completion events IB/core: Do not require CAP_NET_ADMIN for packet sniffing IB/mlx4: Fix unaligned access in send_reply_to_slave IB/mlx5: Report Scatter FCS device capability when supported IB/mlx5: Add Scatter FCS support for Raw Packet QP IB/core: Add Scatter FCS create flag IB/core: Add Raw Scatter FCS device capability IB/core: Add extended device capability flags i40iw: pass hw_stats by reference rather than by value i40iw: Remove unnecessary synchronize_irq() before free_irq() i40iw: constify i40iw_vf_cqp_ops structure IB/mlx5: Add UARs write-combining and non-cached mapping IB/mlx5: Allow mapping the free running counter on PROT_EXEC IB/mlx4: Use list_for_each_entry_safe IB/SA: Use correct free function IB/core: Fix a potential array overrun in CMA and SA agent IB/core: Remove unnecessary check in ibnl_rcv_msg IB/IWPM: Fix a potential skb leak RDMA/nes: replace custom print_hex_dump() ...
2016-05-17Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (21 commits) gitignore: fix wording mfd: ab8500-debugfs: fix "between" in printk memstick: trivial fix of spelling mistake on management cpupowerutils: bench: fix "average" treewide: Fix typos in printk IB/mlx4: printk fix pinctrl: sirf/atlas7: fix printk spelling serial: mctrl_gpio: Grammar s/lines GPIOs/line GPIOs/, /sets/set/ w1: comment spelling s/minmum/minimum/ Blackfin: comment spelling s/divsor/divisor/ metag: Fix misspellings in comments. ia64: Fix misspellings in comments. hexagon: Fix misspellings in comments. tools/perf: Fix misspellings in comments. cris: Fix misspellings in comments. c6x: Fix misspellings in comments. blackfin: Fix misspelling of 'register' in comment. avr32: Fix misspelling of 'definitions' in comment. treewide: Fix typos in printk Doc: treewide : Fix typos in DocBook/filesystem.xml ...
2016-05-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-3/+2
Pull networking updates from David Miller: "Highlights: 1) Support SPI based w5100 devices, from Akinobu Mita. 2) Partial Segmentation Offload, from Alexander Duyck. 3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE. 4) Allow cls_flower stats offload, from Amir Vadai. 5) Implement bpf blinding, from Daniel Borkmann. 6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is actually using FASYNC these atomics are superfluous. From Eric Dumazet. 7) Run TCP more preemptibly, also from Eric Dumazet. 8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e driver, from Gal Pressman. 9) Allow creating ppp devices via rtnetlink, from Guillaume Nault. 10) Improve BPF usage documentation, from Jesper Dangaard Brouer. 11) Support tunneling offloads in qed, from Manish Chopra. 12) aRFS offloading in mlx5e, from Maor Gottlieb. 13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo Leitner. 14) Add MSG_EOR support to TCP, this allows controlling packet coalescing on application record boundaries for more accurate socket timestamp sampling. From Martin KaFai Lau. 15) Fix alignment of 64-bit netlink attributes across the board, from Nicolas Dichtel. 16) Per-vlan stats in bridging, from Nikolay Aleksandrov. 17) Several conversions of drivers to ethtool ksettings, from Philippe Reynes. 18) Checksum neutral ILA in ipv6, from Tom Herbert. 19) Factorize all of the various marvell dsa drivers into one, from Vivien Didelot 20) Add VF support to qed driver, from Yuval Mintz" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits) Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m" Revert "phy dp83867: Make rgmii parameters optional" r8169: default to 64-bit DMA on recent PCIe chips phy dp83867: Make rgmii parameters optional phy dp83867: Fix compilation with CONFIG_OF_MDIO=m bpf: arm64: remove callee-save registers use for tmp registers asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions switchdev: pass pointer to fib_info instead of copy net_sched: close another race condition in tcf_mirred_release() tipc: fix nametable publication field in nl compat drivers: net: Don't print unpopulated net_device name qed: add support for dcbx. ravb: Add missing free_irq() calls to ravb_close() qed: Remove a stray tab net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings net: ethernet: fec-mpc52xx: use phydev from struct net_device bpf, doc: fix typo on bpf_asm descriptions stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings net: ethernet: fs-enet: use phydev from struct net_device ...
2016-05-17iscsi-target: Fix early sk_data_ready LOGIN_FLAGS_READY raceNicholas Bellinger1-9/+9
There is a iscsi-target/tcp login race in LOGIN_FLAGS_READY state assignment that can result in frequent errors during iscsi discovery: "iSCSI Login negotiation failed." To address this bug, move the initial LOGIN_FLAGS_READY assignment ahead of iscsi_target_do_login() when handling the initial iscsi_target_start_negotiation() request PDU during connection login. As iscsi_target_do_login_rx() work_struct callback is clearing LOGIN_FLAGS_READ_ACTIVE after subsequent calls to iscsi_target_do_login(), the early sk_data_ready ahead of the first iscsi_target_do_login() expects LOGIN_FLAGS_READY to also be set for the initial login request PDU. As reported by Maged, this was first obsered using an MSFT initiator running across multiple VMWare host virtual machines with iscsi-target/tcp. Reported-by: Maged Mokhtar <mmokhtar@binarykinetics.com> Tested-by: Maged Mokhtar <mmokhtar@binarykinetics.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-16cxgbit: Use type ISCSI_CXGBIT + cxgbit tpg_np attributeNicholas Bellinger2-8/+8
Instead of having cxgbit use type ISCSI_HW_OFFLOAD + 'hw_offload' tpg_np attribute, it should be using it's own driver specific type + attribute Cc: Varun Prakash <varun@chelsio.com> Cc: Hariprasad Shenai <hariprasad@chelsio.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-16iscsi-target: Convert transport drivers to signal rdma_shutdownNicholas Bellinger2-6/+5
Instead of special casing the handful of callers that check for iser-target rdma verbs specific shutdown, use a simple flag at iscsit_transport->rdma_shutdown so each driver can signal this. Also, update iscsi-target/tcp + cxgbit to rdma_shutdown = false. Cc: Varun Prakash <varun@chelsio.com> Cc: Hariprasad Shenai <hariprasad@chelsio.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-16iscsi-target: Make iscsi_tpg_np driver show/store use generic codeNicholas Bellinger1-158/+41
Go ahead and fold the duplicate iscsi_tpg_np driver attribute show/store functions into generic callers, invoked by current driver specific functions. This allows for future v4.8+ changes to have iscsi_target_mod use tpg_np driver attributes at runtime, instead of having the defaults hardcoded in iscsi_target_configfs.c. Also, drop the unused/legacy 'sctp' attribute for non standard RFC-3720 operation with IPPROTO_SCTP. Cc: Varun Prakash <varun@chelsio.com> Cc: Hariprasad Shenai <hariprasad@chelsio.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-13target: enhance and export target_alloc_sgl/target_free_sglChristoph Hellwig2-15/+19
The SRP target driver will need to allocate and chain it's own SGLs soon. For this export target_alloc_sgl, and add a new argument to it so that it can allocate an additional chain entry that doesn't point to a page. Also export transport_free_sgl after renaming it to target_free_sgl to free these SGLs again. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-05-10iscsi-target: graceful disconnect on invalid mapping to iovecImran Haider1-1/+8
Ensures the first page entry is within bounds. A failed check would terminate the iSCSI connection instead of causing a NULL-dereference. This violation seems to happen with certain iSCSI commands where the computed CDB length is zero but the expected transfer length is non-zero. The real problem is probably on the iSCSI initiator side since there is a discrepancy between the iSCSI header and the encapsulated CDB Opcode. Signed-off-by: Imran Haider <imran1008@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10target: need_to_release is always false, remove redundant check and kfreeColin Ian King1-4/+0
The removal the #ifdef'd code on CONFIG_ARCH_HAS_SG_CHAIN in commit 02c4de53add1b79 ("target/rd: always chain S/G list") removed the setting of need_to_release to true, so we are now left with need_to_release always being false and hence the conditional kfree is never reached. Clean up the dead code by removing need_to_release and the conditional kfree. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10target: remove sess_kref and ->shutdown_sessionChristoph Hellwig2-34/+3
Both of them are unused now that drivers handle any delayed session shutdown internally. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10iscsi-target: remove usage of ->shutdown_sessionChristoph Hellwig4-23/+12
->shutdown session only decideѕ if the target core calls ->close_session directly, or if the fabrics drivers calls it manually later through target_put_session, which at this point will always close the session as it has been removed from the lookup list and thus no new references will be acquired from the core. So instead remove ->shutdown and have the core call ->close_session directly, and replace all calls to target_put_session in the iSCSI target with direct calls to iscsit_close_session. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10target: make close_session optionalChristoph Hellwig4-17/+2
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10target: make ->shutdown_session optionalChristoph Hellwig7-31/+4
Turns out the template and thus many drivers got the return value wrong: 0 means the fabrics driver needs to put a session reference, which no driver except for the iSCSI target drivers did. Fortunately none of these drivers supports explicit Node ACLs, so the bug was harmless. Even without that only qla2xxx and iscsi every did real work in shutdown_session, so get rid of the boilerplate code in all other drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10target: remove acl_stopChristoph Hellwig2-10/+7
Ensure we can use list_empty on the sess_acl_list to remove the need for this flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-10target: consolidate and fix session shutdownChristoph Hellwig1-54/+33
Factor out a helper to shutdown sessions for a Node ACL, and make it properly restart the list walk after dropping the lock. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09cxgbit: add files for cxgbit.koVarun Prakash10-0/+5114
cxgbit.h - This file contains data structure definitions for cxgbit.ko. cxgbit_lro.h - This file contains data structure definitions for LRO support. cxgbit_main.c - This file contains code for registering with iscsi target transport and cxgb4 driver. cxgbit_cm.c - This file contains code for connection management. cxgbit_target.c - This file contains code for processing iSCSI PDU. cxgbit_ddp.c - This file contains code for Direct Data Placement. (added check for NULL sg in cxgbit_set_one_ppod) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> (add Kconfig and Makefile v2: added dependency on INET) Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: export symbolsVarun Prakash6-10/+23
export symbols for ISCSI_HW_OFFLOAD transport drivers. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: call complete on conn_logout_compVarun Prakash1-4/+6
ISCSI_HW_OFFLOAD transport drivers waits on conn_logout_comp as ISCSI_TCP driver so call complete if transport type is ISCSI_HW_OFFLOAD. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: clear tx_thread_activeVarun Prakash1-2/+4
clear tx_thread_active for ISCSI_HW_OFFLOAD transport in logout_post_handler functions. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: add new offload transport typeVarun Prakash1-0/+76
Add new transport type ISCSI_HW_OFFLOAD, hw offload transport drivers will use this transport type. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: use conn_transport->transport_type in text rspVarun Prakash1-1/+2
Use conn_transport->transport_type instead of ISCSI_TCP to build text response. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: move iscsit_thread_check_cpumask()Varun Prakash1-26/+0
Move iscsit_thread_check_cpumask() to header file so that ISCSI_HW_OFFLOAD and other transport drivers can call this function to ensure both tx and rx thread runs on same cpu. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: add void (*iscsit_get_r2t_ttt)()Varun Prakash1-1/+4
Add void (*iscsit_get_r2t_ttt)() to struct iscsit_transport, iscsi-target uses this callback to get r2t->targ_xfer_tag. cxgbit.ko needs this callback for Direct Data Placement of Data Out pdus, adapter uses ttt in Data Out pdus for placing data directly in to the host buffers. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: add int (*iscsit_validate_params)()Varun Prakash1-0/+10
Add int (*iscsit_validate_params)() to struct iscsit_transport, iscsi-target uses this callback for validating conn operational parameters. cxgbit.ko needs this callback to check and update the value of MAXXMITDATASEGMENTLENGTH. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: split iscsi_target_rx_thread()Varun Prakash1-26/+33
split iscsi_target_rx_thread() into two parts, 1. iscsi_target_rx_thread() is common to all transport drivers, it will call Rx function registered by transport driver. 2. iscsit_get_rx_pdu() is Rx function for ISCSI_TCP transport. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: add void (*iscsit_get_rx_pdu)()Varun Prakash1-8/+2
Add void (*iscsit_get_rx_pdu)() to struct iscsit_transport, iscsi-target uses this callback to receive and process Rx iSCSI PDUs. cxgbit.ko needs this callback to reuse iscsi-target Rx thread. Signed-off-by: Varun Prakash <varun@chelsio.com> Acked-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: add void (*iscsit_release_cmd)()Varun Prakash1-0/+3
Add void (*iscsit_release_cmd)() to struct iscsit_transport, iscsi-target uses this callback to release transport driver resources associated with an iSCSI cmd. cxgbit.ko needs this callback to release DDP resource and sg page in case of PASSTHROUGH_SG_TO_MEM_NOALLOC. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09iscsi-target: add int (*iscsit_xmit_pdu)()Varun Prakash1-351/+195
Add int (*iscsit_xmit_pdu)() to struct iscsit_transport, iscsi-target uses this callback to transmit an iSCSI PDU. cxgbit.ko needs this callback to avoid duplicating iscsit_immediate_queue() and iscsit_response_queue() code. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09target: use new "dbroot" target attributeLee Duncan2-4/+4
This commit updates the target core ALUA and PR modules to use the new "dbroot" attribute instead of assuming the target database is in "/var/target". Signed-off-by: Lee Duncan <lduncan@suse.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-05-09target: make target db location configurableLee Duncan2-0/+68
This commit adds the read-write attribute "dbroot", in the top-level CONFIGFS (core) target directory, normally /sys/kernel/config/target. This attribute defaults to "/var/target" but can be changed by writing a new pathname string to it. Changing this attribute is only allowed when no fabric drivers are loaded and the supplied value specifies an existing directory. Target modules that care about the target database root directory will be modified to use this attribute in a future commit. Signed-off-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-04-28treewide: Fix typos in printkMasanari Iida1-1/+1
This patch fix spelling typos in printk from various part of the codes. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-04-14Merge branch 'for-davem' of ↵David S. Miller1-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-04-13block: kill off q->flush_flagsJens Axboe1-3/+3
Now that we converted everything to the newer block write cache interface, kill off the queue flush_flags and queueable flush entries. Signed-off-by: Jens Axboe <axboe@fb.com>
2016-03-30target: add a new add_wwn_groups fabrics methodChristoph Hellwig2-8/+14
We need to have the WWN fully initialized before addig default groups to it, so add a new method to add these groups after the WWN has been initialized. Also remove the default groups in the core while we're at it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30target: initialize the nacl base CIT begfore init_nodeaclChristoph Hellwig1-8/+9
The iSCSI targets wants to add a default group, for which we need to have the list of default groups initialized previously. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30target: remove ->fabric_cleanup_nodeaclChristoph Hellwig2-12/+1
Instead we can clean up the list of default ACLs in core code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-28[net] drop 'size' argument of sock_recvmsg()Al Viro1-3/+2
all callers have it equal to msg_data_left(msg). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-22Merge branch 'for-next' of ↵Linus Torvalds12-273/+404
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "The highlights this round include: - Add target_alloc_session() w/ callback helper for doing se_session allocation + tag + se_node_acl lookup. (HCH + nab) - Tree-wide fabric driver conversion to use target_alloc_session() - Convert sbp-target to use percpu_ida tag pre-allocation, and TARGET_SCF_ACK_KREF I/O krefs (Chris Boot + nab) - Convert usb-gadget to use percpu_ida tag pre-allocation, and TARGET_SCF_ACK_KREF I/O krefs (Andrzej Pietrasiewicz + nab) - Convert xen-scsiback to use percpu_ida tag pre-allocation, and TARGET_SCF_ACK_KREF I/O krefs (Juergen Gross + nab) - Convert tcm_fc to use TARGET_SCF_ACK_KREF I/O + TMR krefs - Convert ib_srpt to use percpu_ida tag pre-allocation - Add DebugFS node for qla2xxx target sess list (Quinn) - Rework iser-target connection termination (Jenny + Sagi) - Convert iser-target to new CQ API (HCH) - Add pass-through WRITE_SAME support for IBLOCK (Mike Christie) - Introduce data_bitmap for asynchronous access of data area (Sheng Yang + Andy) - Fix target_release_cmd_kref shutdown comp leak (Himanshu Madhani) Also, there is a separate PULL request coming for cxgb4 NIC driver prerequisites for supporting hw iscsi segmentation offload (ISO), that will be the base for a number of v4.7 developments involving iscsi-target hw offloads" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (36 commits) target: Fix target_release_cmd_kref shutdown comp leak target: Avoid DataIN transfers for non-GOOD SAM status target/user: Report capability of handling out-of-order completions to userspace target/user: Fix size_t format-spec build warning target/user: Don't free expired command when time out target/user: Introduce data_bitmap, replace data_length/data_head/data_tail target/user: Free data ring in unified function target/user: Use iovec[] to describe continuous area target: Remove enum transport_lunflags_table target/iblock: pass WRITE_SAME to device if possible iser-target: Kill the ->isert_cmd back pointer in struct iser_tx_desc iser-target: Kill struct isert_rdma_wr iser-target: Convert to new CQ API iser-target: Split and properly type the login buffer iser-target: Remove ISER_RECV_DATA_SEG_LEN iser-target: Remove impossible condition from isert_wait_conn iser-target: Remove redundant wait in release_conn iser-target: Rework connection termination iser-target: Separate flows for np listeners and connections cma events iser-target: Add new state ISER_CONN_BOUND to isert_conn ...
2016-03-22target: Fix target_release_cmd_kref shutdown comp leakHimanshu Madhani1-2/+0
This patch fixes an active I/O shutdown bug for fabric drivers using target_wait_for_sess_cmds(), where se_cmd descriptor shutdown would result in hung tasks waiting indefinitely for se_cmd->cmd_wait_comp to complete(). To address this bug, drop the incorrect list_del_init() usage in target_wait_for_sess_cmds() and always complete() during se_cmd target_release_cmd_kref() put, in order to let caller invoke the final fabric release callback into se_cmd->se_tfo->release_cmd() code. Reported-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Tested-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-17Merge tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfsLinus Torvalds5-383/+131
Pull configfs updates from Christoph Hellwig: - A large patch from me to simplify setting up the list of default groups by actually implementing it as a list instead of an array. - a small Y2083 prep patch from Deepa Dinamani. Probably doesn't matter on it's own, but it seems like he is trying to get rid of all CURRENT_TIME uses in file systems, which is a worthwhile goal. * tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs: configfs: switch ->default groups to a linked list configfs: Replace CURRENT_TIME by current_fs_time()
2016-03-17Merge branch 'linus' of ↵Linus Torvalds3-118/+111
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "Here is the crypto update for 4.6: API: - Convert remaining crypto_hash users to shash or ahash, also convert blkcipher/ablkcipher users to skcipher. - Remove crypto_hash interface. - Remove crypto_pcomp interface. - Add crypto engine for async cipher drivers. - Add akcipher documentation. - Add skcipher documentation. Algorithms: - Rename crypto/crc32 to avoid name clash with lib/crc32. - Fix bug in keywrap where we zero the wrong pointer. Drivers: - Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver. - Add PIC32 hwrng driver. - Support BCM6368 in bcm63xx hwrng driver. - Pack structs for 32-bit compat users in qat. - Use crypto engine in omap-aes. - Add support for sama5d2x SoCs in atmel-sha. - Make atmel-sha available again. - Make sahara hashing available again. - Make ccp hashing available again. - Make sha1-mb available again. - Add support for multiple devices in ccp. - Improve DMA performance in caam. - Add hashing support to rockchip" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits) crypto: qat - remove redundant arbiter configuration crypto: ux500 - fix checks of error code returned by devm_ioremap_resource() crypto: atmel - fix checks of error code returned by devm_ioremap_resource() crypto: qat - Change the definition of icp_qat_uof_regtype hwrng: exynos - use __maybe_unused to hide pm functions crypto: ccp - Add abstraction for device-specific calls crypto: ccp - CCP versioning support crypto: ccp - Support for multiple CCPs crypto: ccp - Remove check for x86 family and model crypto: ccp - memset request context to zero during import lib/mpi: use "static inline" instead of "extern inline" lib/mpi: avoid assembler warning hwrng: bcm63xx - fix non device tree compatibility crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode. crypto: qat - The AE id should be less than the maximal AE number lib/mpi: Endianness fix crypto: rockchip - add hash support for crypto engine in rk3288 crypto: xts - fix compile errors crypto: doc - add skcipher API documentation crypto: doc - update AEAD AD handling ...
2016-03-10target: Avoid DataIN transfers for non-GOOD SAM statusNicholas Bellinger1-0/+8
This patch modifies existing transport_complete_*() code to avoid invoking target_core_fabric_ops->queue_data_in() driver callbacks for I/O READs with non-GOOD SAM status. Some initiators expect GOOD status when a DATA-IN payload transfer is involved, so to be safe go ahead and always invoke target_core_fabric_ops->queue_status() to generate fabric responses instead. Note this is a prerequisite for IBLOCK supporting retriable status, so SAM_STAT_BUSY + SAM_STAT_TASK_SET_FULL always generates fabric driver responses instead of initiating DataIN payload transfer when non-GOOD status is present Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10target/user: Report capability of handling out-of-order completions to userspaceSheng Yang1-0/+1
TCMU_MAILBOX_FLAG_CAP_OOOC was introduced, and userspace can check the flag for out-of-order completion capability support. Also update the document on how to use the feature. Signed-off-by: Sheng Yang <sheng@yasker.org> Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10target/user: Fix size_t format-spec build warningNicholas Bellinger1-3/+2
Fix the following printk size_t warning as per 0-day build: All warnings (new ones prefixed by >>): drivers/target/target_core_user.c: In function 'is_ring_space_avail': >> drivers/target/target_core_user.c:385:12: warning: format '%lu' >> expects argument of type 'long unsigned int', but argument 3 has type >> 'size_t {aka unsigned int}' [-Wformat=] pr_debug("no data space: only %lu available, but ask for %lu\n", ^ Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10target/user: Don't free expired command when time outSheng Yang1-8/+17
Which would result in NPE after when userspace connected again. Expired command would be freed either when handling command(by userspace), or when device was tearing down Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10target/user: Introduce data_bitmap, replace data_length/data_head/data_tailSheng Yang1-100/+121
The data_bitmap was introduced to support asynchornization accessing of data area. We divide mailbox data area into blocks, and use data_bitmap to track the usage of data area. All the new command's data would start with a new block, and may left unusable space after it end. But it's easy to track using data_bitmap. Now we can allocate data area for asynchronization accessing from userspace, since we can track the allocation using data_bitmap. The userspace part would be the same as Maxim's previous asynchronized implementation. Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10target/user: Free data ring in unified functionSheng Yang1-10/+12
Prepare for data_bitmap in the next patch. Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10target/user: Use iovec[] to describe continuous areaSheng Yang1-15/+26
We don't need use one iovec per scatter-gather list entry, since data area are continuous. Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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