AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/scsi/cxlflash/Kconfig

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cxlflash: Base support for IBM CXL Flash Adapter SCSI device driver to support filesystem access on the IBM CXL Flash adapter. Supported-by: Stephen Bates <stephen.bates@pmcs.com> Reviewed-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-10 05:15:52 +07:00
#
# IBM CXL-attached Flash Accelerator SCSI Driver
#
config CXLFLASH
tristate "Support for IBM CAPI Flash"
cxlflash: Base error recovery support Introduce support for enhanced I/O error handling. A device state is added to track 3 possible states of the device: Normal - the device is operating normally and is fully operational Limbo - the device is in a reset/recovery scenario and its operational status is paused Failed/terminating - the device has either failed to be reset/recovered or is being terminated (removed); it is no longer operational All operations are allowed when the device is operating normally. When the device transitions to limbo state, I/O must be paused. To help accomplish this, a wait queue is introduced where existing and new threads can wait until the device is no longer in limbo. When coming out of limbo, threads need to check the state and error out gracefully when encountering the failed state. When the device transitions to the failed/terminating state, normal operations are no longer allowed. Only specially designated operations related to graceful cleanup are permitted. Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com> Reviewed-by: Daniel Axtens <dja@axtens.net> Reviewed-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-14 09:47:34 +07:00
depends on PCI && SCSI && CXL && EEH
scsi: cxlflash: Select IRQ_POLL The driver now uses IRQ_POLL and needs to select it to avoid the following build error. ERROR: ".irq_poll_complete" [drivers/scsi/cxlflash/cxlflash.ko] undefined! ERROR: ".irq_poll_sched" [drivers/scsi/cxlflash/cxlflash.ko] undefined! ERROR: ".irq_poll_disable" [drivers/scsi/cxlflash/cxlflash.ko] undefined! ERROR: ".irq_poll_init" [drivers/scsi/cxlflash/cxlflash.ko] undefined! Fixes: cba06e6de403 ("scsi: cxlflash: Implement IRQ polling for RRQ processing") Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-05-06 06:31:47 +07:00
select IRQ_POLL
cxlflash: Base support for IBM CXL Flash Adapter SCSI device driver to support filesystem access on the IBM CXL Flash adapter. Supported-by: Stephen Bates <stephen.bates@pmcs.com> Reviewed-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-10 05:15:52 +07:00
default m
help
Allows CAPI Accelerated IO to Flash
If unsure, say N.
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