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scsi: cxlflash: Support reading adapter VPD data 

Use the PCI VPD services to support reading the VPD data of the underlying
adapter.

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 11:33:14 -05:00 committed by Martin K. Petersen
parent 3351e4f025
commit 119c920073
1 changed files with 15 additions and 0 deletions
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15
drivers/scsi/cxlflash/ocxl_hw.c
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@ -323,6 +323,20 @@ static void ocxlflash_perst_reloads_same_image(void *afu_cookie, bool image)
afu->perst_same_image = image;
}
/**
* ocxlflash_read_adapter_vpd() - reads the adapter VPD
* @pdev: PCI device associated with the host.
* @buf: Buffer to get the VPD data.
* @count: Size of buffer (maximum bytes that can be read).
*
* Return: size of VPD on success, -errno on failure
*/
static ssize_t ocxlflash_read_adapter_vpd(struct pci_dev *pdev, void *buf,
size_t count)
{
return pci_read_vpd(pdev, 0, count, buf);
}
/**
* ocxlflash_unconfig_afu() - unconfigure the AFU
* @afu: AFU associated with the host.
@ -658,6 +672,7 @@ const struct cxlflash_backend_ops cxlflash_ocxl_ops = {
.dev_context_init = ocxlflash_dev_context_init,
.release_context = ocxlflash_release_context,
.perst_reloads_same_image = ocxlflash_perst_reloads_same_image,
.read_adapter_vpd = ocxlflash_read_adapter_vpd,
.create_afu = ocxlflash_create_afu,
.destroy_afu = ocxlflash_destroy_afu,
.get_fd = ocxlflash_get_fd,