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scsi: cxlflash: Support image reload policy modification

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On a PERST, the AFU image can be reloaded or left intact. Provide means to set
this image reload policy.

Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Uma Krishnan 2018-03-26 11:32:29 -05:00 committed by Martin K. Petersen
parent b18718c626
commit 8b7a552150
2 changed files with 14 additions and 0 deletions
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13
drivers/scsi/cxlflash/ocxl_hw.c
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@ -251,6 +251,18 @@ out:
return rc; return rc;
} }
/**
* ocxlflash_perst_reloads_same_image() - sets the image reload policy
* @afu_cookie: Hardware AFU associated with the host.
* @image: Whether to load the same image on PERST.
*/
static void ocxlflash_perst_reloads_same_image(void *afu_cookie, bool image)
{
struct ocxl_hw_afu *afu = afu_cookie;
afu->perst_same_image = image;
}
/** /**
* ocxlflash_destroy_afu() - destroy the AFU structure * ocxlflash_destroy_afu() - destroy the AFU structure
* @afu_cookie: AFU to be freed. * @afu_cookie: AFU to be freed.
@ -501,6 +513,7 @@ const struct cxlflash_backend_ops cxlflash_ocxl_ops = {
.get_context = ocxlflash_get_context, .get_context = ocxlflash_get_context,
.dev_context_init = ocxlflash_dev_context_init, .dev_context_init = ocxlflash_dev_context_init,
.release_context = ocxlflash_release_context, .release_context = ocxlflash_release_context,
.perst_reloads_same_image = ocxlflash_perst_reloads_same_image,
.create_afu = ocxlflash_create_afu, .create_afu = ocxlflash_create_afu,
.destroy_afu = ocxlflash_destroy_afu, .destroy_afu = ocxlflash_destroy_afu,
.get_fd = ocxlflash_get_fd, .get_fd = ocxlflash_get_fd,

1
drivers/scsi/cxlflash/ocxl_hw.h
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@ -17,6 +17,7 @@ struct ocxl_hw_afu {
struct ocxlflash_context *ocxl_ctx; /* Host context */ struct ocxlflash_context *ocxl_ctx; /* Host context */
struct pci_dev *pdev; /* PCI device */ struct pci_dev *pdev; /* PCI device */
struct device *dev; /* Generic device */ struct device *dev; /* Generic device */
bool perst_same_image; /* Same image loaded on perst */
struct ocxl_fn_config fcfg; /* DVSEC config of the function */ struct ocxl_fn_config fcfg; /* DVSEC config of the function */
struct ocxl_afu_config acfg; /* AFU configuration data */ struct ocxl_afu_config acfg; /* AFU configuration data */