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11 Commits

Author SHA1 Message Date
Rajeshwar R Shinde
2d6f70fe17 scsi: elx: sli4: Remove code duplication 
In the function sli_xmit_bls_rsp64_wqe(), the 'if' and 'else' conditions
evaluates the same expression and give the same output. Also, params->s_id
shall not be equal to U32_MAX. Remove the unused code.

This fixes coccinelle warning such as:
drivers/scsi/elx/libefc_sli/sli4.c:2320:2-4: WARNING: possible
condition with no effect (if == else)

Signed-off-by: Rajeshwar R Shinde <coolrrsh@gmail.com>
Link: https://lore.kernel.org/r/20230817114301.17601-1-coolrrsh@gmail.com
Reviewed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2023-08-21 17:13:56 -04:00
Randy Dunlap
2aa0f83edb scsi: elx: libefc_sli: Use "/*" for non-kernel-doc comment 
Don't use "/**" to begin non-kernel-doc comments.  Prevent a kernel-doc
warning:

drivers/scsi/elx/libefc_sli/sli4.c:13: warning: cannot understand function prototype: 'struct sli4_asic_entry_t sli4_asic_table[] = '

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: James Smart <james.smart@broadcom.com>
Cc: Ram Vegesna <ram.vegesna@broadcom.com>
Cc: target-devel@vger.kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20230117070151.29339-1-rdunlap@infradead.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2023-01-23 20:53:43 -05:00
Julia Lawall
8037185d1a scsi: elx: libefc_sli: Fix typos in comments 
Various spelling mistakes in comments.  Detected with the help of
Coccinelle.

Link: https://lore.kernel.org/r/20220314115354.144023-18-Julia.Lawall@inria.fr
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2022-03-15 00:32:15 -04:00
Christoph Hellwig
efac162a4e scsi: efct: Don't pass GFP_DMA to dma_alloc_coherent() 
dma_alloc_coherent() ignores the zone specifiers so this is pointless and
confusing.

Link: https://lore.kernel.org/r/20211214163605.416288-1-hch@lst.de
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-12-16 22:52:29 -05:00
Christophe JAILLET
2c2934c80e scsi: elx: Use 'bitmap_zalloc()' when applicable 
'sli4->ext[i].use_map' is a bitmap. Use 'bitmap_zalloc()' to simplify code,
improve the semantic and avoid some open-coded arithmetic in allocator
arguments.

Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.

Link: https://lore.kernel.org/r/2a0a83949fb896a0a236dcca94dfdc8486d489f5.1635104793.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2021-10-26 23:28:33 -04:00
James Smart
f6060eb134 scsi: elx: libefc_sli: Fix ANDing with zero bit value 
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>
 2021-06-22 21:07:30 -04:00
James Smart
388f36edec scsi: elx: libefc_sli: APIs to setup SLI library 
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>
 2021-06-15 23:39:29 -04:00
James Smart
9bd267093b scsi: elx: libefc_sli: BMBX routines and SLI config commands 
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>
 2021-06-15 23:39:29 -04:00
James Smart
1628f5b497 scsi: elx: libefc_sli: Populate and post different WQEs 
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>
 2021-06-15 23:39:29 -04:00
James Smart
7c5b76831e scsi: elx: libefc_sli: Queue create/destroy/parse routines 
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>
 2021-06-15 23:39:29 -04:00
James Smart
edba59f3cd scsi: elx: libefc_sli: SLI-4 register offsets and field definitions 
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>
 2021-06-15 23:39:28 -04:00