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2019-02-06scsi: remove bidirectional command supportChristoph Hellwig12-268/+34
No real need for bidi support once the OSD code is gone. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-06scsi: remove the SCSI OSD libraryChristoph Hellwig11-3659/+0
Now that all the users are gone the SCSI OSD library can be removed as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-06scsi: fs: remove exofsChristoph Hellwig20-6600/+0
This was an example for using the SCSI OSD protocol, which we're trying to remove. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-06scsi: bsg-lib: handle bidi requests without block layer helpChristoph Hellwig4-61/+56
We can just stash away the second request in struct bsg_job instead of using the block layer req->next_rq field, allowing for the eventual removal of the latter. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-06scsi: bsg: refactor bsg_ioctlChristoph Hellwig1-86/+72
Move all actual functionality into helpers, just leaving the dispatch in this function. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Benjamin Block <bblock@linux.ibm.com> Tested-by: Benjamin Block <bblock@linux.ibm.com> Tested-by: Avri Altman <avri.altman@wdc.com> Acked-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: mpt3sas: Update driver version to 27.102.00.00Suganath Prabu S1-2/+2
Updated driver version to 27.102.00.00 from 27.101.00.00. Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: mpt3sas: Add support for ATLAS PCIe switchSuganath Prabu S2-0/+9
Add Atlas PCIe Switch Management Port device PNPID, Vendor Id: 0x1000 device Id: 0x00B2 This device is based on MPI 2.6 spec and it exposes one SES device to accept management commands for the PCIe switch. Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: mpt3sas: Add support for NVMe Switch AdapterSuganath Prabu S2-0/+5
Added device ID for NVMe Switch Adapter (Ambrosia). VID: 0x1000 DID: 0x02B1 Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: mpt3sas: Rename mpi endpoint device ID macro.Suganath Prabu S2-4/+4
MPI Endpoint is a PCIe switch based on MPI2. Renaming device ID macro from MPI2_MFGPAGE_DEVID_SAS2308_MPI_EP to MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP. Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: megaraid_sas: Add support for DEVICE_LIST DCMD in driverShivasharan S4-23/+250
This patch adds support for the new DEVICE_LIST DCMD. Driver currently sends two separate DCMDs for getting the list of PDs and LDs that are exposed to host. The new DCMD provides a single interface to get a list of both PDs and LDs that are exposed to the host. Based on the list of target IDs that are returned by this DCMD, driver will add the devices (PD/LD) to SML. Driver will check for FW support for this new DCMD and based on the support will either send the new DCMD or will fall back to the earlier method of sending two separate DCMDs for PD and LD list. Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: megaraid_sas: Rework device add code in AEN pathShivasharan S1-66/+107
In preparation of adding support for the DEVICE_LIST DCMD, this patch refactors the code in the AEN event handling path. Add new function to update the PD and LD list in driver. Move the code to scan PD and VD channels into separate function. Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: megaraid_sas: Rework code to get PD and LD listShivasharan S1-13/+31
During FW init, combine the code to get the PD and LD list from FW into a single function. This patch is in preparation for adding support for HOST_DEVICE_LIST DCMD. Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: MAINTAINERS: Update dwc driver maintainer to Pedro SousaJoao Pinto1-1/+1
Currently I am managing the Synopsys drivers & tools team (full-time) and so I am passing the DWC UFS driver maintenance to Pedro Sousa. Signed-off-by: Joao Pinto <joao.pinto@synopsys.com> Cc: Pedro Sousa <pedrom.sousa@synopsys.com> Cc: Marc Gonzalez <marc.w.gonzalez@free.fr> Cc: Alex Lemberg <Alex.Lemberg@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: MAINTAINERS: Add reviewers for UFS patchesMarc Gonzalez1-1/+3
According to git log and the linux-scsi archives, Vinayak has been inactive for several years. Removing him as maintainer will make the get_maintainer.pl script generate an extensive list of recipients. Add three reviewers as well to vet future UFS patches. Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr> Acked-by: Joao Pinto <jpinto@synopsys.com> Acked-by: Avri Altman <avri.altman@wdc.com> Acked-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: aacraid: clean up some indentation and formatting issuesColin Ian King3-15/+15
There are several issues with badly indented statements. Fix these and clean up the formatting. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: sd: Improve sd_print_capacity()Damien Le Moal1-13/+13
There is no need to call twice string_get_size() when the capacity messages are not going to be printed. Reverse the message output condition to return early and avoid executing string_get_size() when it is not necessary. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: ufs: Print uic error history in time orderStanley Chu1-1/+6
uic errors are currently printed out of time order. Make things more readable by printing logs in time order, and printing "No record" if history is empty. Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Bean Huo <beanhuo@micron.com> Tested-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/iscsi: Simplify iscsit_handle_text_cmd()Bart Van Assche1-14/+11
Treat text_in and padding as a single buffer instead of two buffers. Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/iscsi: Simplify iscsit_dump_data_payload()Bart Van Assche1-32/+9
Use a single loop to dump immediate data, padding and digest instead of using separate rx_data() calls for each type of data. Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlockBart Van Assche1-2/+2
When using SCSI passthrough in combination with the iSCSI target driver then cmd->t_state_lock may be obtained from interrupt context. Hence, all code that obtains cmd->t_state_lock from thread context must disable interrupts first. This patch avoids that lockdep reports the following: WARNING: inconsistent lock state 4.18.0-dbg+ #1 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. iscsi_ttx/1800 [HC1[1]:SC0[2]:HE0:SE0] takes: 000000006e7b0ceb (&(&cmd->t_state_lock)->rlock){?...}, at: target_complete_cmd+0x47/0x2c0 [target_core_mod] {HARDIRQ-ON-W} state was registered at: lock_acquire+0xd2/0x260 _raw_spin_lock+0x32/0x50 iscsit_close_connection+0x97e/0x1020 [iscsi_target_mod] iscsit_take_action_for_connection_exit+0x108/0x200 [iscsi_target_mod] iscsi_target_rx_thread+0x180/0x190 [iscsi_target_mod] kthread+0x1cf/0x1f0 ret_from_fork+0x24/0x30 irq event stamp: 1281 hardirqs last enabled at (1279): [<ffffffff970ade79>] __local_bh_enable_ip+0xa9/0x160 hardirqs last disabled at (1281): [<ffffffff97a008a5>] interrupt_entry+0xb5/0xd0 softirqs last enabled at (1278): [<ffffffff977cd9a1>] lock_sock_nested+0x51/0xc0 softirqs last disabled at (1280): [<ffffffffc07a6e04>] ip6_finish_output2+0x124/0xe40 [ipv6] other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&cmd->t_state_lock)->rlock); <Interrupt> lock(&(&cmd->t_state_lock)->rlock); *** DEADLOCK *** 3 locks held by iscsi_ttx/1800: *0: 00000000c3b711b7 (sk_lock-AF_INET6){+.+.}, at: tcp_sendmsg+0x1e/0x50 *1: 00000000fa81046f (rcu_read_lock){....}, at: inet6_csk_xmit+0xc7/0x2e0 [ipv6] *2: 00000000c091d70d (rcu_read_lock_bh){....}, at: ip6_finish_output2+0x124/0xe40 [ipv6] stack backtrace: CPU: 0 PID: 1800 Comm: iscsi_ttx Not tainted 4.18.0-dbg+ #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.0.0-prebuilt.qemu-project.org 04/01/2014 Call Trace: <IRQ> dump_stack+0xa4/0xf5 print_usage_bug+0x25b/0x27b mark_lock+0x70f/0x7b0 __lock_acquire+0xbc2/0x1b50 lock_acquire+0xd2/0x260 _raw_spin_lock_irqsave+0x4a/0x60 target_complete_cmd+0x47/0x2c0 [target_core_mod] target_complete_cmd_with_length+0x70/0xa0 [target_core_mod] pscsi_req_done+0x335/0x530 [target_core_pscsi] __blk_mq_end_request+0xa5/0x140 scsi_end_request+0x112/0x320 [scsi_mod] scsi_io_completion+0x183/0xa30 [scsi_mod] scsi_finish_command+0x1c0/0x280 [scsi_mod] scsi_softirq_done+0x19a/0x230 [scsi_mod] __blk_mq_complete_request_remote+0x2f/0x40 flush_smp_call_function_queue+0x12a/0x220 generic_smp_call_function_single_interrupt+0x13/0x30 smp_call_function_single_interrupt+0x7a/0x350 call_function_single_interrupt+0xf/0x20 </IRQ> RIP: 0010:__asan_load4+0x1e/0x80 debug_lockdep_rcu_enabled+0x26/0x40 ip6_finish_output2+0x15a/0xe40 [ipv6] ip6_finish_output+0x308/0x440 [ipv6] ip6_output+0x11d/0x3b0 [ipv6] ip6_xmit+0x639/0xc50 [ipv6] inet6_csk_xmit+0x198/0x2e0 [ipv6] __tcp_transmit_skb+0xc1b/0x15b0 tcp_write_xmit+0x42e/0x1f20 __tcp_push_pending_frames+0x59/0x150 tcp_push+0x189/0x270 tcp_sendmsg_locked+0x7b9/0x1680 tcp_sendmsg+0x2c/0x50 inet_sendmsg+0x71/0x250 sock_sendmsg+0x4c/0x60 tx_data+0x12b/0x1f0 [iscsi_target_mod] iscsit_send_tx_data+0x77/0xe0 [iscsi_target_mod] iscsit_xmit_pdu+0x2c5/0x740 [iscsi_target_mod] iscsit_response_queue+0x941/0xd40 [iscsi_target_mod] iscsi_target_tx_thread+0x23b/0x350 [iscsi_target_mod] kthread+0x1cf/0x1f0 ret_from_fork+0x24/0x30 Fixes: 064cdd2d91c2 ("target: Fix race between iscsi-target connection shutdown + ABORT_TASK") Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: <stable@vger.kernel.org> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/iscsi: Rename a function and a function pointerBart Van Assche5-6/+6
Having both a function and a function pointer member with the same name (iscsit_release_cmd) is confusing. Hence rename the function pointer member. Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/iscsi: Fix spelling of "unsolicited"Bart Van Assche6-9/+9
Change "unsoliticed" into "unsolicited". Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/iscsi: Convert comments about locking into runtime checksBart Van Assche7-42/+31
Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/iscsi: Remove an incorrect commentBart Van Assche1-3/+0
The single iscsit_start_nopin_response_timer() caller does not hold any locks. Hence remove the comment above this function. Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: RDMA/srpt: Fix a credit leak for aborted commandsBart Van Assche1-0/+11
Make sure that the next time a response is sent to the initiator that the credit it had allocated for the aborted request gets freed. Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Christoph Hellwig <hch@lst.de> Fixes: 131e6abc674e ("target: Add TFO->abort_task for aborted task resources release") # v3.15 Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: RDMA/srpt: Rework I/O context allocationBart Van Assche2-32/+19
Instead of maintaining a list of free I/O contexts, use an sbitmap data structure to track which I/O contexts are in use and which are free. This makes the ib_srpt driver more consistent with other LIO drivers. Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: RDMA/srpt: Fix handling of TMF submission failureBart Van Assche1-3/+1
If submitting a TMF to the target core fails, send the "FUNCTION REJECTED" response to the initiator. Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: RDMA/srpt: Fix handling of command / TMF submission failureBart Van Assche1-5/+4
If submitting an SRP IU to the target core fails, send the SCSI response "BUSY" to the initiator instead of not sending any response. Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/core: Add target_send_busy()Bart Van Assche2-0/+17
Introduce a function that sends the SCSI status "BUSY" back to the initiator. The next patch will add a call to this function in the srpt target driver. Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/core: Inline transport_lun_remove_cmd()Bart Van Assche1-28/+3
Remove the code that clears .se_lun from transport_cmd_check_stop_to_fabric() such that the transport_lun_remove_cmd() call can be moved into target_release_cmd_kref(). Because this guarantees that transport_lun_remove_cmd() will be called exactly once, it is safe to change the cmpxchg() call into a test of se_cmd.lun_ref_active. Inline transport_lun_remove_cmd() because it is not worth to keep it as a separate function. Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/core: Simplify the LUN RESET implementationBart Van Assche1-12/+2
Due to the task management handling rework it is safe to wait for a TMF that is not in the active state. Hence remove the CMD_T_ACTIVE test from core_tmr_drain_tmr_list(). Additionally, call __target_check_io_state() instead of open coding it. Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/core: Remove several state tests from the TMF codeBart Van Assche3-28/+0
Whether or not a session is being torn down does not affect whether or not SCSI commands are in the task set. Hence remove the "tearing down" checks from the TMF code. The TRANSPORT_ISTATE_PROCESSING check is left out because it is now safe to wait for a command that is in that state. The CMD_T_PRE_EXECUTE is left out because abort processing is postponed until after commands have left the pre-execute state since the patch that makes TMF processing synchronous. See also commit 1c21a48055a6 ("target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK"). Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05scsi: target/core: Remove the write_pending_status() callback functionBart Van Assche16-120/+0
Due to the patch that makes TMF handling synchronous the write_pending_status() callback function is no longer called. Hence remove it. Acked-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Andy Grover <agrover@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com> Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Himanshu Madhani <himanshu.madhani@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Saurav Kashyap <saurav.kashyap@qlogic.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Juergen Gross <jgross@suse.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-02scsi: csiostor: Remove set but not used variable 'pln'YueHaibing1-3/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/csiostor/csio_attr.c: In function 'csio_fcoe_free_vnp': drivers/scsi/csiostor/csio_attr.c:500:21: warning: variable 'pln' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-02scsi: qla2xxx: Add new FC-NVMe enable BIT to enable FC-NVMe featureGiridhar Malavali2-1/+6
This patch adds new BIT detection to enable FC-NVMe feature in the driver. [mkp: fixed Giridhar's SoB] Signed-off-by: Giridhar Malavali <gmalavali@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Add missing seq_printf() call in hisi_sas_show_row_32()John Garry1-0/+1
This call must have been missed when I reworked the debugfs feature for upstreaming, so add it back. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Fix to only call scsi_get_prot_op() for non-NULL scsi_cmndJohn Garry1-1/+2
A NULL-pointer dereference was introduced for TMF SSP commands from the upstreaming reworking. Fix this by relocating the scsi_get_prot_op() callsite. Fixes: d6a9000b81be ("scsi: hisi_sas: Add support for DIF feature for v2 hw") Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Some misc tidy-upJohn Garry1-11/+22
Sparse detected some problems in the driver, so tidy them up. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Correct memory allocation size for DQ debugfsLuo Jiaxing1-2/+2
Some sizes we allocate for debugfs structure are incorrect, so fix them. Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Fix losing directly attached disk when hot-plugXiaofei Tan4-9/+56
Hot-plugging SAS wire of direct hard disk backplane may cause disk lost. We have done this test with several types of SATA disk from different venders, and only two models from Seagate has this problem, ST4000NM0035-1V4107 and ST3000VM002-1ET166. The root cause is that the disk doesn't send D2H frame after OOB finished. SAS controller will issue phyup interrupt only when D2H frame is received, otherwise, will be waiting there all the time. When this issue happen, we can find the disk again with link reset. To fix this issue, we setup an timer after OOB finished. If the PHY is not up in 20s, do link reset. Notes: the 20s is an experience value. Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Reject setting programmed minimum linkrate > 1.5GLuo Jiaxing1-4/+8
The SAS controller cannot support a programmed minimum linkrate of > 1.5G (it will always negotiate to 1.5G at least), so just reject it. This solves a strange situation where the PHY negotiated linkrate may be less than the programmed minimum linkrate. Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Remove unused parameter of function hisi_sas_alloc()Xiang Chen3-4/+4
In function hisi_sas_alloc(), parameter shost is not used, so remove it. Signed-off-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>
2019-01-29scsi: hisi_sas: remove the check of sas_dev status in hisi_sas_I_T_nexus_reset()Xiang Chen3-16/+0
When issing a hardreset to a SATA device when running IO, it is possible that abnormal CQs of the device are returned. Then enter error handler, it doesn't enter function hisi_sas_abort_task() as there is no timeout IO, and it doesn't set device as HISI_SAS_DEV_EH. So when hardreset by libata later, it actually doesn't issue hardreset as there is a check to judge whether device is in error. For this situation, actually need to hardreset the device to recover. So remove the check of sas_dev status in hisi_sas_I_T_nexus_reset(). Before we add the check to avoid the endless loop of reset for directly-attached SATA device at probe time, actually we flutter it for it, so it is not necessary to add the check now. Signed-off-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>
2019-01-29scsi: hisi_sas: shutdown axi bus to avoid exception CQ returnedXiang Chen1-0/+12
When injecting 2 bit ECC error, it will cause fatal AXI interrupts. Before the recovery of SAS controller reset, the internal of SAS controller is in error. If CQ interrupts return at the time, actually it is exception CQ interrupt, and it may cause resource release in disorder. To avoid the exception situation, shutdown AXI bus after fatal AXI interrupt. In SAS controller reset, it will restart AXI bus. For later version of v3 hw, hardware will shutdown AXI bus for this situation, so just fix current ver of v3 hw. Signed-off-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>
2019-01-29scsi: hisi_sas: send primitive NOTIFY to SSP situation onlyXiang Chen5-8/+9
Send primitive NOTIFY to SSP situation only, or it causes underflow issue when sending IO. Also rename hisi_sas_hw.sl_notify() to hisi_sas_hw. sl_notify_ssp(). Signed-off-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>
2019-01-29scsi: hisi_sas: Add debugfs ITCT file and add file operationsLuo Jiaxing1-0/+33
This patch creates debugfs file for ITCT and adds file operations. Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: Fix type casting and missing static qualifier in debugfs codeJohn Garry2-12/+13
Sparse can detect some type casting issues in the debugfs code, so fix it up. Also a missing static qualifier is added to hisi_sas_debugfs_to_reg_name(). Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: hisi_sas: No need to check return value of debugfs_create functionsJohn Garry2-37/+17
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: pcmcia: nsp_cs: Remove unnecessary parenthesesNathan Chancellor1-1/+2
Clang warns: drivers/scsi/pcmcia/nsp_cs.c:1137:27: warning: equality comparison with extraneous parentheses [-Wparentheses-equality] if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/pcmcia/nsp_cs.c:1137:27: note: remove extraneous parentheses around the comparison to silence this warning if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { ~ ^ ~ drivers/scsi/pcmcia/nsp_cs.c:1137:27: note: use '=' to turn this equality comparison into an assignment if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { ^~ = 1 warning generated. Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: nsp32: Remove unnecessary self assignment in nsp32_set_sync_entryNathan Chancellor1-1/+0
Clang warns: drivers/scsi/nsp32.c:2444:14: warning: explicitly assigning value of variable of type 'unsigned char' to itself [-Wself-assign] offset = offset; ~~~~~~ ^ Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: GOTO Masanori <gotom@debian.or.jp> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>