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path: root/drivers/scsi/elx/libefc
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2022-02-01scsi: elx: efct: Don't use GFP_KERNEL under spin lockYang Yingliang1-6/+2
commit 61263b3a11a2594b4e898f166c31162236182b5c upstream. GFP_KERNEL/GFP_DMA can't be used under a spin lock. According the comment, els_ios_lock is used to protect els ios list so we can move down the spin lock to avoid using this flag under the lock. Link: https://lore.kernel.org/r/20220111012441.3232527-1-yangyingliang@huawei.com Fixes: 8f406ef72859 ("scsi: elx: libefc: Extended link Service I/O handling") Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-14scsi: elx: efct: Fix void-pointer-to-enum-cast warning for efc_nport_topologyJames Smart2-6/+4
The kernel test robot flagged an warning for ".../efc_device.c:932:6: warning: cast to smaller integer type 'enum efc_nport_topology' from 'void *'" For the topology events, the "arg" field is generically defined as a void * and is used to pass different arguments. Most of the arguments are pointers to data structures. But for the EFC_EVT_NPORT_TOPOLOGY_NOTIFY event, the argument is an enum value, and the code is typecasting the void * to an enum generating the warning. Fix by converting the EFC_EVT_NPORT_TOPOLOGY_NOTIFY event to pass a pointer to the enum, thus it's a straight-forward pointer dereference in the event handler. Link: https://lore.kernel.org/r/20210830231050.5951-1-jsmart2021@gmail.com Fixes: 202bfdffae27 ("scsi: elx: libefc: FC node ELS and state handling") 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>
2021-06-19scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame()Dan Carpenter1-2/+2
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: 3146240f19bf ("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>
2021-06-19scsi: elx: libefc: Fix less than zero comparison of a unsigned intColin Ian King1-1/+1
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: 202bfdffae27 ("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")
2021-06-16scsi: elx: libefc: Register discovery objects with hardwareJames Smart2-0/+812
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>
2021-06-16scsi: elx: libefc: Extended link Service I/O handlingJames Smart2-0/+1205
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>
2021-06-16scsi: elx: libefc: FC node ELS and state handlingJames Smart2-0/+1675
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>
2021-06-16scsi: elx: libefc: Fabric node state machine interfacesJames Smart2-0/+1680
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>
2021-06-16scsi: elx: libefc: Remote node state machine interfacesJames Smart2-0/+1293
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>
2021-06-16scsi: elx: libefc: SLI and FC PORT state machine interfacesJames Smart2-0/+827
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>
2021-06-16scsi: elx: libefc: FC Domain state machine interfacesJames Smart2-0/+1142
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>
2021-06-16scsi: elx: libefc: Emulex FC discovery library APIs and definitionsJames Smart3-0/+753
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>
2021-06-16scsi: elx: libefc: Generic state machine frameworkJames Smart2-0/+251
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>
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