Flags value is being set to a constant and ANDed with 0 which always
results in 0.
Remove the assignment line.
Link: https://lore.kernel.org/r/20210619155641.19942-1-jsmart2021@gmail.com
Fixes: 1628f5b497 ("scsi: elx: libefc_sli: Populate and post different WQEs")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Calling a nested spin_lock_irqsave() will overwrite the original "flags" so
that they can not be enabled again at the end.
Link: https://lore.kernel.org/r/YMyjH16k4M1yEmmU@mwanda
Fixes: 3146240f19 ("scsi: elx: libefc: FC Domain state machine interfaces")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The comparison of the u32 variable rc to less than zero always false
because it is unsigned. Fix this by making it an int.
Link: https://lore.kernel.org/r/20210616170401.15831-1-colin.king@canonical.com
Fixes: 202bfdffae ("scsi: elx: libefc: FC node ELS and state handling")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unsigned compared against 0")
debugfs_create_xxx routines, which return pointers, are being checked for
error by looking for NULL values. The routines may return pointer-munged
-Exxx codes, so they should be using IS_ERR() to adapt.
There are two cases:
- The first case is on initial directory creation, which actually doesn't
need to be checked. So remove the check.
- Creation of the sessions subdirectory. Modify this creation to create
under the initial directory created, and fix failure check.
Link: https://lore.kernel.org/r/20210618233004.83769-1-jsmart2021@gmail.com
Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
efct_hw_iotype_is_originator() is returning a negative (-EIO) status which
doesn't make sense for a u8 function type.
Reviewing the code, the function only needs to return true/false, thus a
bool status is most appropriate.
Change the function return type and patch up the one callee as the bool
inverses the if check.
Link: https://lore.kernel.org/r/20210618231524.83179-1-jsmart2021@gmail.com
Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
cmpxchg is being used on a bool type, which is requiring architecture
support that isn't compatible with a bool.
Convert variable abort_in_progress from bool to int.
Link: https://lore.kernel.org/r/20210618174050.80302-1-jsmart2021@gmail.com
Fixes: ebc076b3ed ("scsi: elx: efct: Tie into kernel Kconfig and build process")
Reported-by: kernel test robot <lkp@intel.com>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
clang warns:
drivers/scsi/elx/efct/efct_hw.c:1523:17: warning: address of array
'ctx->buf' will always evaluate to 'true' [-Wpointer-bool-conversion]
(!ctx->buf ? U32_MAX : *((u32 *)ctx->buf)));
~~~~~~^~~
buf is an array in the middle of a struct so deferencing it is not a
problem as long as ctx is not NULL. Eliminate the check, which fixes the
warning.
Link: https://github.com/ClangBuiltLinux/linux/issues/1398
Link: https://lore.kernel.org/r/20210617063123.21239-1-nathan@kernel.org
Fixes: 580c0255e4 ("scsi: elx: efct: RQ buffer, memory pool allocation and deallocation APIs")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
clang warns:
drivers/scsi/elx/efct/efct_lio.c:1216:24: warning: variable 'id' is
uninitialized when used here [-Wuninitialized]
se_sess, node, id);
^~
Shuffle the debug print after id's initialization so that the actual value
is printed.
Link: https://github.com/ClangBuiltLinux/linux/issues/1397
Link: https://lore.kernel.org/r/20210617061721.2405511-1-nathan@kernel.org
Fixes: 692e5d73a8 ("scsi: elx: efct: LIO backend interface routines")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix to return negative error code -ENOMEM from the error handling case
instead of 0. Also fix typo in error message.
Link: https://lore.kernel.org/r/20210617024837.1023069-1-weiyongjun1@huawei.com
Fixes: 4df84e8466 ("scsi: elx: efct: Driver initialization routines")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The variable "lun" is being initialized with a value that is never read, it
is being updated later on. The assignment is redundant and can be removed.
Link: https://lore.kernel.org/r/20210616171621.16176-1-colin.king@canonical.com
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
Integration with the scsi_fc_transport host interfaces.
Link: https://lore.kernel.org/r/20210601235512.20104-30-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Implement routines to detach transport and hardware objects.
Link: https://lore.kernel.org/r/20210601235512.20104-29-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Routines that write I/O to work queue, send SRRs and raw frames.
Link: https://lore.kernel.org/r/20210601235512.20104-27-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Routines for SCSI transport IO alloc, build and send I/O.
Link: https://lore.kernel.org/r/20210601235512.20104-25-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add routines to handle unsolicited FC frames.
Link: https://lore.kernel.org/r/20210601235512.20104-24-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add driver definitions for:
- Routines for EQ, CQ, WQ and RQ processing.
- Routines for I/O object pool allocation and deallocation.
Link: https://lore.kernel.org/r/20210601235512.20104-23-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add routines for queue creation, deletion, and configuration.
Link: https://lore.kernel.org/r/20210601235512.20104-20-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Start the population of the efct target mode driver. The driver is
contained in the drivers/scsi/elx/efct subdirectory.
Create the efct directory and start population of the driver by adding
SLI-4 configuration parameters, data structures for configuring SLI-4
queues, converting from OS to SLI-4 IO requests, and handling async events.
Link: https://lore.kernel.org/r/20210601235512.20104-18-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add library interface definitions for:
- FC node PRLI handling and state management.
Link: https://lore.kernel.org/r/20210601235512.20104-15-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add library interface definitions for:
- Fabric node initialization and logins.
- Name/Directory Services node.
- Fabric Controller node to process rscn events.
These are all interactions with remote ports that correspond to well-known
fabric entities
Link: https://lore.kernel.org/r/20210601235512.20104-14-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add library interface definitions for:
- SLI and FC port (aka n_port_id) registration, allocation and
deallocation.
Link: https://lore.kernel.org/r/20210601235512.20104-12-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Start the population of the libefc library.
The library will contain common tasks usable by a target or initiator
driver. The library will also contain a FC discovery state machine
interface.
Creates the library directory and add definitions for the discovery state
machine interface.
Link: https://lore.kernel.org/r/20210601235512.20104-9-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add APIs to initialize the library, initialize the SLI Port, reset
firmware, terminate the SLI Port, and terminate the library.
Link: https://lore.kernel.org/r/20210601235512.20104-8-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add routines to create mailbox commands used during adapter initialization
and add APIs to issue mailbox commands to the adapter through the bootstrap
mailbox register.
Link: https://lore.kernel.org/r/20210601235512.20104-7-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add service routines to create different WQEs and add APIs to issue iread,
iwrite, treceive, tsend and other work queue entries.
Link: https://lore.kernel.org/r/20210601235512.20104-6-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add service routines to create mailbox commands and add APIs to
create/destroy/parse SLI-4 EQ, CQ, RQ and MQ queues.
Link: https://lore.kernel.org/r/20210601235512.20104-5-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add definitions for SLI-4 mailbox commands and responses.
Link: https://lore.kernel.org/r/20210601235512.20104-4-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Continue the libefc_sli SLI-4 library population.
Add SLI-4 Data structures and defines for:
- Buffer Descriptors (BDEs)
- Scatter/Gather List elements (SGEs)
- Queues and their Entry Descriptions for: Event Queues (EQs), Completion
Queues (CQs), Receive Queues (RQs), and the Mailbox Queue (MQ).
Link: https://lore.kernel.org/r/20210601235512.20104-3-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is the initial patch for the new Emulex target mode SCSI driver.
- Create the new Emulex source level directory drivers/scsi/elx and add
the directory to the MAINTAINERS file.
- Create the first library subdirectory drivers/scsi/elx/libefc_sli. This
library is a SLI-4 interface library.
- Start the population of the libefc_sli library with definitions of SLI-4
hardware register offsets and definitions.
Link: https://lore.kernel.org/r/20210601235512.20104-2-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
