Commit Graph

13 Commits

Author SHA1 Message Date
Dmitry Bogdanov
8d4efd0040 scsi: efct: Add state in nport sm trace printout
Similar to other state machine traces and to make debug easier, add the
state name to nport sm trace printout.

Link: https://lore.kernel.org/r/20210914105539.6942-2-d.bogdanov@yadro.com
Reviewed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-22 00:04:55 -04:00
Len Baker
0a5e20fc8c scsi: elx: libefc: Prefer kcalloc() over open coded arithmetic
As noted in the "Deprecated Interfaces, Language Features, Attributes, and
Conventions" documentation [1], size calculations (especially
multiplication) should not be performed in memory allocator (or similar)
function arguments due to the risk of them overflowing. This could lead to
values wrapping around and a smaller allocation being made than the caller
was expecting. Using those allocations could lead to linear overflows of
heap memory and other misbehaviors.

Use the purpose specific kcalloc() function instead of the argument count *
size in the kzalloc() function.

[1] https://www.kernel.org/doc/html/v5.14/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments

Link: https://lore.kernel.org/r/20210905062448.6587-1-len.baker@gmx.com
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Len Baker <len.baker@gmx.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-14 23:33:22 -04:00
Dan Carpenter
7cca85dff2 scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame()
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>
2021-06-18 23:01:04 -04:00
Colin Ian King
99cf922692 scsi: elx: libefc: Fix less than zero comparison of a unsigned int
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")
2021-06-18 23:01:04 -04:00
James Smart
cdaf39bad5 scsi: elx: libefc: Register discovery objects with hardware
Add library interface definitions for:

 - Registrations for VFI, VPI and RPI.

Link: https://lore.kernel.org/r/20210601235512.20104-17-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 23:39:30 -04:00
James Smart
8f406ef728 scsi: elx: libefc: Extended link Service I/O handling
Add library interface definitions for:

 - Functions to build and send ELS/CT/BLS commands and responses.

Link: https://lore.kernel.org/r/20210601235512.20104-16-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 23:39:30 -04:00
James Smart
202bfdffae scsi: elx: libefc: FC node ELS and state handling
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>
2021-06-15 23:39:30 -04:00
James Smart
ffc3d50093 scsi: elx: libefc: Fabric node state machine interfaces
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>
2021-06-15 23:39:30 -04:00
James Smart
6bc6180d7b scsi: elx: libefc: Remote node state machine interfaces
Add library interface definitions for:

 - Remote node (aka remote port) allocation, initializaion and destroy
   routines.

Link: https://lore.kernel.org/r/20210601235512.20104-13-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 23:39:30 -04:00
James Smart
fcd427303e scsi: elx: libefc: SLI and FC PORT state machine interfaces
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>
2021-06-15 23:39:30 -04:00
James Smart
3146240f19 scsi: elx: libefc: FC Domain state machine interfaces
Add library interface definitions for:

 - FC Domain registration, allocation and deallocation sequence

Link: https://lore.kernel.org/r/20210601235512.20104-11-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 23:39:30 -04:00
James Smart
d7b71fd219 scsi: elx: libefc: Emulex FC discovery library APIs and definitions
Add library interface definitions for:

 - SLI/Local FC port objects

 - efc_domain_s: FC domain (aka fabric) objects

 - efc_node_s: FC node (aka remote ports) objects

Link: https://lore.kernel.org/r/20210601235512.20104-10-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>
2021-06-15 23:39:29 -04:00
James Smart
5aa09c4868 scsi: elx: libefc: Generic state machine framework
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>
2021-06-15 23:39:29 -04:00