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810494 commits

Author SHA1 Message Date
Bart Van Assche
658c31224d scsi: target/iscsi: Simplify iscsit_dump_data_payload()
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>
2019-02-04 21:36:54 -05:00
Bart Van Assche
32e36bfbcf scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlock
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: 064cdd2d91 ("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>
2019-02-04 21:35:44 -05:00
Bart Van Assche
1e65cc1631 scsi: target/iscsi: Rename a function and a function pointer
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>
2019-02-04 21:34:49 -05:00
Bart Van Assche
0300b1147e scsi: target/iscsi: Fix spelling of "unsolicited"
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>
2019-02-04 21:33:59 -05:00
Bart Van Assche
618baaf788 scsi: target/iscsi: Convert comments about locking into runtime checks
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>
2019-02-04 21:33:08 -05:00
Bart Van Assche
b53655b80c scsi: target/iscsi: Remove an incorrect comment
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>
2019-02-04 21:32:38 -05:00
Bart Van Assche
40ca875729 scsi: RDMA/srpt: Fix a credit leak for aborted commands
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: 131e6abc67 ("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>
2019-02-04 21:32:01 -05:00
Bart Van Assche
fd1b668709 scsi: RDMA/srpt: Rework I/O context allocation
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>
2019-02-04 21:31:37 -05:00
Bart Van Assche
337ec69ed7 scsi: RDMA/srpt: Fix handling of TMF submission failure
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>
2019-02-04 21:30:37 -05:00
Bart Van Assche
8b8807b9e9 scsi: RDMA/srpt: Fix handling of command / TMF submission failure
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>
2019-02-04 21:29:45 -05:00
Bart Van Assche
94ebb47160 scsi: target/core: Add target_send_busy()
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>
2019-02-04 21:28:48 -05:00
Bart Van Assche
83f85b8ec3 scsi: target/core: Inline transport_lun_remove_cmd()
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>
2019-02-04 21:27:20 -05:00
Bart Van Assche
2281c95fe7 scsi: target/core: Simplify the LUN RESET implementation
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>
2019-02-04 21:26:24 -05:00
Bart Van Assche
3f0661a492 scsi: target/core: Remove several state tests from the TMF code
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 1c21a48055 ("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>
2019-02-04 21:25:13 -05:00
Bart Van Assche
f80d2f0846 scsi: target/core: Remove the write_pending_status() callback function
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>
2019-02-04 21:23:59 -05:00
YueHaibing
e18e9dac9c scsi: csiostor: Remove set but not used variable 'pln'
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>
2019-02-01 18:19:56 -05:00
Giridhar Malavali
171e4909ea scsi: qla2xxx: Add new FC-NVMe enable BIT to enable FC-NVMe feature
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>
2019-02-01 18:11:44 -05:00
John Garry
ede2afb9c8 scsi: hisi_sas: Add missing seq_printf() call in hisi_sas_show_row_32()
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>
2019-01-29 01:41:20 -05:00
John Garry
e1ba0b0b44 scsi: hisi_sas: Fix to only call scsi_get_prot_op() for non-NULL scsi_cmnd
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: d6a9000b81 ("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>
2019-01-29 01:41:20 -05:00
John Garry
26889e5ec8 scsi: hisi_sas: Some misc tidy-up
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>
2019-01-29 01:41:20 -05:00
Luo Jiaxing
d1548e9c32 scsi: hisi_sas: Correct memory allocation size for DQ debugfs
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>
2019-01-29 01:41:20 -05:00
Xiaofei Tan
b6c9b15e44 scsi: hisi_sas: Fix losing directly attached disk when hot-plug
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>
2019-01-29 01:41:20 -05:00
Luo Jiaxing
eb44e4d7b5 scsi: hisi_sas: Reject setting programmed minimum linkrate > 1.5G
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>
2019-01-29 01:41:20 -05:00
Xiang Chen
ae68b566e0 scsi: hisi_sas: Remove unused parameter of function hisi_sas_alloc()
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>
2019-01-29 01:41:20 -05:00
Xiang Chen
ffb1c820b8 scsi: hisi_sas: remove the check of sas_dev status in hisi_sas_I_T_nexus_reset()
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>
2019-01-29 01:41:20 -05:00
Xiang Chen
5c31b0c677 scsi: hisi_sas: shutdown axi bus to avoid exception CQ returned
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>
2019-01-29 01:41:20 -05:00
Xiang Chen
569eddcf3a scsi: hisi_sas: send primitive NOTIFY to SSP situation only
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>
2019-01-29 01:41:20 -05:00
Luo Jiaxing
5979f33b98 scsi: hisi_sas: Add debugfs ITCT file and add file operations
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>
2019-01-29 01:41:19 -05:00
John Garry
5b0eeac4be scsi: hisi_sas: Fix type casting and missing static qualifier in debugfs code
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>
2019-01-29 01:41:19 -05:00
John Garry
c2c7e74057 scsi: hisi_sas: No need to check return value of debugfs_create functions
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>
2019-01-29 01:41:19 -05:00
Nathan Chancellor
7e1c99e5c1 scsi: pcmcia: nsp_cs: Remove unnecessary parentheses
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>
2019-01-29 01:28:49 -05:00
Nathan Chancellor
c9c1df3e8c scsi: nsp32: Remove unnecessary self assignment in nsp32_set_sync_entry
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>
2019-01-29 01:26:57 -05:00
Masahiro Yamada
bc03abd287 scsi: prefix header search paths with $(srctree)/
Currently, the Kbuild core manipulates header search paths in a crazy way
[1].

To fix this mess, I want all Makefiles to add explicit $(srctree)/ to the
search paths in the srctree. Some Makefiles are already written in that
way, but not all. The goal of this work is to make the notation consistent,
and finally get rid of the gross hacks.

Having whitespaces after -I does not matter since commit 48f6e3cf5b
("kbuild: do not drop -I without parameter").

[1]: https://patchwork.kernel.org/patch/9632347/

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 01:22:51 -05:00
Masahiro Yamada
34022f0072 scsi: remove unneeded header search paths
I was able to build without these extra header search paths.

Especially, the header search path -I. in kernel Makefiles is always
suspicious; it allows the compiler to search for headers in the top of
$(srctree), where obviously no header file exists.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 01:22:21 -05:00
YueHaibing
f2aecc1d38 scsi: fnic: Remove set but not used variable 'vdev'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/fnic/vnic_wq.c: In function 'vnic_wq_alloc_bufs':
drivers/scsi/fnic/vnic_wq.c:50:19: warning:
 variable 'vdev' set but not used [-Wunused-but-set-variable]

drivers/scsi/fnic/vnic_rq.c: In function 'vnic_rq_alloc_bufs':
drivers/scsi/fnic/vnic_rq.c:30:19: warning:
 variable 'vdev' set but not used [-Wunused-but-set-variable]

Never used since introduction.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 01:16:09 -05:00
Bart Van Assche
db5db4b91c scsi: sd: Protect against READ(6) or WRITE(6) with zero block transfer length
Since the READ(6) and WRITE(6) commands interpret a zero in the transfer
length field in the CDB as 256 logical blocks, avoid submitting such
commands.

Cc: Douglas Gilbert <dgilbert@interlog.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:49:23 -05:00
Bart Van Assche
59abc8cc05 scsi: libsas: Remove scsi_to_u32()
Since the function scsi_to_u32() is identical to get_unaligned_be32(),
change all scsi_to_u32() calls into get_unaligned_be32() calls.

Cc: Jian Luo <luojian5@huawei.com>
Cc: John Garry <john.garry@huawei.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:46:22 -05:00
Colin Ian King
b64ae4abbd scsi: hpsa: clean up two indentation issues
There are two statements that are indented incorrectly. Fix these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:42:03 -05:00
Greg Kroah-Hartman
b45a3a428f scsi: qla2xxx: no need to check return value of debugfs_create functions
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.

Cc: qla2xxx-upstream@qlogic.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:54 -05:00
Greg Kroah-Hartman
26febfb38c scsi: qedf: no need to check return value of debugfs_create functions
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.

Cc: QLogic-Storage-Upstream@cavium.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:54 -05:00
Greg Kroah-Hartman
50e931679a scsi: lpfc: no need to check return value of debugfs_create functions
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.

Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:54 -05:00
Greg Kroah-Hartman
fd84ec206d scsi: snic: no need to check return value of debugfs_create functions
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.

Cc: Karan Tilak Kumar <kartilak@cisco.com>
Cc: Sesidhar Baddela <sebaddel@cisco.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:54 -05:00
Greg Kroah-Hartman
1dbaa379a4 scsi: fnic: no need to check return value of debugfs_create functions
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.

Cc: Satish Kharat <satishkh@cisco.com>
Cc: Sesidhar Baddela <sebaddel@cisco.com>
Cc: Karan Tilak Kumar <kartilak@cisco.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:53 -05:00
Greg Kroah-Hartman
b6533640ed scsi: csiostor: no need to check return value of debugfs_create functions
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.

Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Varun Prakash <varun@chelsio.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Oza Pawandeep <poza@codeaurora.org>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:53 -05:00
Greg Kroah-Hartman
8389f1281c scsi: bfa: no need to check return value of debugfs_create functions
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.

[mkp: removed unused label]

Cc: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Cc: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:40 -05:00
Johannes Thumshirn
b8432724b6 scsi: MAINTAINERS: Move FCoE to Hannes Reinecke
I'll be moving on to different things in the storage stack and Hannes
agreed to take over FCoE.

Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:31:46 -05:00
Greg Kroah-Hartman
6156dc1c9a scsi: fcoe: remove unneeded fcoe_ctlr_destroy_store export
There's no need to export fcoe_ctlr_destroy_store as a symbol, so remove
the EXPORT_SYMBOL() line for it.

Cc: Johannes Thumshirn <jth@kernel.org>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:30:50 -05:00
Greg Kroah-Hartman
573d8884f8 scsi: fcoe: convert to use BUS_ATTR_WO
We are trying to get rid of BUS_ATTR() and the usage of that in the fcoe
driver can be trivially converted to use BUS_ATTR_WO(), so use that
instead.

Cc: Johannes Thumshirn <jth@kernel.org>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:29:30 -05:00
Ching Huang
dfeba64dd6 scsi: arcmsr: Update driver version to v1.40.00.10-20190116
From Ching Huang <ching2048@areca.com.tw>

Update driver version to v1.40.00.10-20190116.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 21:38:21 -05:00
Ching Huang
317d0e027c scsi: arcmsr: Fix suspend/resume of ACB_ADAPTER_TYPE_B part 2
From Ching Huang <ching2048@areca.com.tw>

For ACB_ADAPTER_TYPE_B controller, the read/write after hibernate and
resume may sometimes result in 'isr get an illegal ccb command' in
/var/log/messages. This patch fixes it.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 21:38:21 -05:00