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author | Uma Krishnan <ukrishn@linux.vnet.ibm.com> | 2018-03-26 11:32:20 -0500 |
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committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-04-18 19:32:48 -0400 |
commit | b18718c626919f475f82eec6a4940540e7ce44da (patch) | |
tree | d44cb5942a33f947db1853442394c5dd4d52e7f0 /drivers | |
parent | 926a62f9bd53f5ad411e831eeb259a9564fb1532 (diff) | |
download | linux-stable-b18718c626919f475f82eec6a4940540e7ce44da.tar.gz linux-stable-b18718c626919f475f82eec6a4940540e7ce44da.tar.bz2 linux-stable-b18718c626919f475f82eec6a4940540e7ce44da.zip |
scsi: cxlflash: Support adapter context discovery
Provide means to obtain the process element of an adapter context as well as
locate an adapter context by file.
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>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/scsi/cxlflash/ocxl_hw.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c index 49af0597ba84..21915b726106 100644 --- a/drivers/scsi/cxlflash/ocxl_hw.c +++ b/drivers/scsi/cxlflash/ocxl_hw.c @@ -151,6 +151,19 @@ err1: } /** + * ocxlflash_process_element() - get process element of the adapter context + * @ctx_cookie: Adapter context associated with the process element. + * + * Return: process element of the adapter context + */ +static int ocxlflash_process_element(void *ctx_cookie) +{ + struct ocxlflash_context *ctx = ctx_cookie; + + return ctx->pe; +} + +/** * ocxlflash_set_master() - sets the context as master * @ctx_cookie: Adapter context to set as master. */ @@ -469,9 +482,21 @@ err1: goto out; } +/** + * ocxlflash_fops_get_context() - get the context associated with the file + * @file: File associated with the adapter context. + * + * Return: pointer to the context + */ +static void *ocxlflash_fops_get_context(struct file *file) +{ + return file->private_data; +} + /* Backend ops to ocxlflash services */ const struct cxlflash_backend_ops cxlflash_ocxl_ops = { .module = THIS_MODULE, + .process_element = ocxlflash_process_element, .set_master = ocxlflash_set_master, .get_context = ocxlflash_get_context, .dev_context_init = ocxlflash_dev_context_init, @@ -479,4 +504,5 @@ const struct cxlflash_backend_ops cxlflash_ocxl_ops = { .create_afu = ocxlflash_create_afu, .destroy_afu = ocxlflash_destroy_afu, .get_fd = ocxlflash_get_fd, + .fops_get_context = ocxlflash_fops_get_context, }; |