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* hisi_sas: add v2 code for itct setup and freeJohn Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 code to send smp commandJohn Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 path to send ssp frameJohn Garry2016-02-23
| | | | | | | | Include code to prep ssp frame and deliver to hardware. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 cq interrupt handlerJohn Garry2016-02-23
| | | | | | | | Also include slot_complete_v2_hw handler Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 SATA interrupt handlerJohn Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 channel interrupt handlerJohn Garry2016-02-23
| | | | | | | | | This also includes broadcast handler. Unlike v1 hw, broadcast does not have its own dedicated interrupt. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 phy down handlerJohn Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 int init and phy up handlerJohn Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 phy init codeJohn Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add init_id_frame_v2_hw()John Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 hw initJohn Garry2016-02-23
| | | | | | | | | | | | | | | Add code to initialise the hardware. Support is also added to deal with the "am-max-transmissions" (amt) limitation in hip06 controller #1. This is how many connection requests we can send on the system bus before waiting for a response. Due to chip bus design, controller #1 is limited to 32 amt, while, by design, a controller supports 64. The default value for the nibbles in the relevant registers is 0x40; these need to be programmed with 0x20. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add v2 register definitionsJohn Garry2016-02-23
| | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add bare v2 hw driverJohn Garry2016-02-23
| | | | | | | | Just add enough to build and init the module. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: rename some fields in hisi_sas_itctJohn Garry2016-02-23
| | | | | | | | | Since hisi_sas_itct format is different between v1 and v2 hw, give more general names for some fields. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: add hisi_sas_err_record_v1John Garry2016-02-23
| | | | | | | | | Since the error record structure is different for v2 hw, make hisi_sas_err_record opaque and add hisi_sas_err_record_v1. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: reduce max itct entriesJohn Garry2016-02-23
| | | | | | | | | | | | Since v2 hw only supports 2048 itct entries, as opposed to 4096 for v1 hw, set the max itct entries to the lower of the two. It is not anticipated that any device with v1 will ever require to connect > 2048 devices. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: set max commands as configurableJohn Garry2016-02-23
| | | | | | | | | Since v2 hardware permits different numbers of commands to v1, set this as configurable in hisi_sas_hw. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: relocate DEV_IS_EXPANDERJohn Garry2016-02-23
| | | | | | | | | Relocate DEV_IS_EXPANDER to hisi_sas.h as it will be required for v2 hw support. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* Merge remote-tracking branch 'mkp-scsi/4.5/scsi-fixes' into fixesJames Bottomley2016-02-05
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| * hisi_sas: fix v1 hw check for slot errorJohn Garry2016-01-26
| | | | | | | | | | | | | | | | | | | | | | | | | | Completion header bit CMPLT_HDR_RSPNS_XFRD flags whether the response frame is received into host memory, and not whether the response frame has an error. As such, change the decision on whether a slot has an error. Also redundant check on CMPLT_HDR_CMD_CMPLT_MSK is removed. Fixes: 27a3f229 ("hisi_sas: Add cq interrupt handler") Signed-off-by: John Garry <john.garry@huawei.com> Tested-by: Ricardo Salveti <ricardo.salveti@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * hisi_sas: add dependency for HAS_IOMEMJohn Garry2016-01-26
| | | | | | | | | | | | | | | | Not every arch has io, so fix build by adding necessary dependency. Signed-off-by: John Garry <john.garry@huawei.com> Suggested-by: Richard Weinberger <richard@nod.at> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | Merge remote-tracking branch 'mkp-scsi/4.5/scsi-fixes' into fixesJames Bottomley2016-01-26
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| * hisi_sas: Restrict SCSI_HISI_SAS to arm64Geert Uytterhoeven2016-01-20
| | | | | | | | | | | | | | | | | | The HiSilicon SAS HBA is available in HiSilicon arm64 SoCs only. Restrict it to arm64, unless compile-testing. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * hisi_sas: SCSI_HISI_SAS should depend on HAS_DMAGeert Uytterhoeven2016-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If NO_DMA=y: ERROR: "dma_map_sg" [drivers/scsi/hisi_sas/hisi_sas_v1_hw.ko] undefined! ERROR: "dma_pool_alloc" [drivers/scsi/hisi_sas/hisi_sas_v1_hw.ko] undefined! ERROR: "dma_unmap_sg" [drivers/scsi/hisi_sas/hisi_sas_v1_hw.ko] undefined! ERROR: "dma_unmap_sg" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_set_mask" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_map_sg" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_pool_destroy" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_free_coherent" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_pool_free" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_alloc_coherent" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_pool_alloc" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_supported" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! ERROR: "dma_pool_create" [drivers/scsi/hisi_sas/hisi_sas_main.ko] undefined! Add a dependency on HAS_DMA to fix this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | hisi_sas: Use u64 for qw0 in free_device_v1_hw()John Garry2016-01-08
| | | | | | | | | | | | | | | | | | | | | | | | By reading in itct.qw0 into a 32b variable the top 32 bits were being lost. In practice this was OK as they were zeroes. Fixes: 27a3f229 ("hisi_sas: Add cq interrupt") Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | hisi_sas: Fix typo in setup_itct_v1_hw()John Garry2016-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | We were doing a arithmetic comparison instead of logical shift by accident. Mis-programming the itct did not seem to make a difference to operation. Fixes: abda97c2fe874 ("hisi_sas: Add dev_found") Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | hisi_sas: Fix v1 itct masksJohn Garry2016-01-08
|/ | | | | | | | | | | | The mask fields are for quad-words, so add ULL suffix. Also unreferenced ITCT_HDR_BREAK_REPLY and ITCT_HDR_MAX_BURST are removed. Fixes: 50af155b6c ("hisi_sas: Add v1 hardware reg") Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Shane Seymour <shane.seymour@hpe.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: use platform_get_irq()John Garry2015-12-16
| | | | | | | | | | It is preferred that drivers use platform_get_irq() instead of irq_of_parse_and_map(), so replace. Signed-off-by: John Garry <john.garry@huawei.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: fix error codes in hisi_sas_task_prep()Dan Carpenter2015-12-10
| | | | | | | | | | | There were a couple cases where the error codes weren't set and also I changed the success return to "return 0;" which is the same as "return rc;" but more explicit. Fixes: 42e7a69368a5 ('hisi_sas: Add ssp command functio') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Remove dependency on of_irq_countJohn Garry2015-11-25
| | | | | | | | | | | | Originally the driver would use of_irq_count to calculate how much memory is required for storing the interrupt names, since the number of interrupt sources for the controller is variable. Since of_irq_count cannot be used by the driver, use fixed names. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add fatal irq handlerJohn Garry2015-11-25
| | | | | | | | | Add handlers for fatal interrupts. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add control phy handlerJohn Garry2015-11-25
| | | | | | | | | | Add method for lldd_control_phy. Currently link rate control and spinup hold is unsupported. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add tmf methodsJohn Garry2015-11-25
| | | | | | | | | Add function methods for tmf's. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add scan finished and startJohn Garry2015-11-25
| | | | | | | | | | Add functions for scsi host template scan_finished and scan_start methods. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add smp protocol supportJohn Garry2015-11-25
| | | | | | | | | | Add support for smp function, which allows devices attached by expander to be controlled. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add bcast interrupt handlerJohn Garry2015-11-25
| | | | | | | | | This is for expander broadcast event. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add abnormal irq handlerJohn Garry2015-11-25
| | | | | | | | | | Add abnormal irq handler. This handler is concerned with phy down event. Also add port formed and port deformed handlers. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add dev_found and dev_goneJohn Garry2015-11-25
| | | | | | | | | Add functions to deal with lldd_dev_found and lldd_dev_gone. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add cq interrupt handlerJohn Garry2015-11-25
| | | | | | | | | Add cq interrupt handler and also slot error handler function. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add ssp command functionJohn Garry2015-11-25
| | | | | | | | | Add path to send ssp command to HW. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add path from phyup irq to SAS frameworkJohn Garry2015-11-25
| | | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add v1 hardware interrupt initJohn Garry2015-11-25
| | | | | | | | | | Add code to interrupts, so now we can get a phy up interrupt when a disk is connected. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add v1 hardware initialisation codeJohn Garry2015-11-25
| | | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add v1 hardware register definitionsJohn Garry2015-11-25
| | | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add v1 hw module initJohn Garry2015-11-25
| | | | | | | | | Add module init code for v1 hw. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add timer and spinlock initJohn Garry2015-11-25
| | | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add phy and port initJohn Garry2015-11-25
| | | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add hisi sas device typeJohn Garry2015-11-25
| | | | | | | | | Include initialisation. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Add hisi_hba workqueueJohn Garry2015-11-25
| | | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* hisi_sas: Set dev DMA maskJohn Garry2015-11-25
| | | | | | | Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>