lkml.org 
[lkml]   [2021]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH v21 4/4] scsi: ufs: Add HPB 2.0 support
Date

> kmem_cache_destroy(hpb->map_req_cache);
> @@ -1670,7 +2109,7 @@ void ufshpb_init_hpb_lu(struct ufs_hba *hba, struct
> scsi_device *sdev)
> if (ret)
> goto out;
>
> - hpb = ufshpb_alloc_hpb_lu(hba, lun, &hba->ufshpb_dev,
> + hpb = ufshpb_alloc_hpb_lu(hba, sdev, &hba->ufshpb_dev,
> &hpb_lu_info);
> if (!hpb)
> goto out;
In HPB2.0 device control mode, the host is expected to send HPB-WRITE-BUFFER 0x3
To informs that all HPB Regions are inactive (expect for pinned regions).
Maybe a good place to do so is here, or in ufshpb_hpb_lu_prepared after you kicked the map work for pinned regions.

Either way, If you decide to do so, I would appreciate if you could align to the framework I proposed in
(scsi: ufshpb: Region inactivation in host mode).
This way you would have a wrapper unmap_all that would call ufshpb_issue_umap_req with buffer id 0x3,
And I would have a wrapper unmap_single that would call it with buffer id 0x1.

Thanks,
Avri
\
 
 \ /
  Last update: 2021-02-20 15:35    [W:0.147 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site