On Mon, Jul 06, 2020 at 08:04:11PM +0000, Satya Tangirala wrote: > This patch series adds support for inline encryption to UFS using > the inline encryption support in the block layer. It follows the JEDEC > UFSHCI v2.1 specification, which defines inline encryption for UFS. > > This patch series previously went through a number of iterations as > part of the "Inline Encryption Support" patchset (last version was v13: > https://lkml.kernel.org/r/20200514003727.69001-1-satyat@xxxxxxxxxx). > This patch series is rebased on v5.8-rc4. > > Patch 1 introduces the crypto registers and struct definitions defined > in the UFSHCI v2.1 spec. > > Patch 2 introduces functions to manipulate the UFS inline encryption > hardware (again in line with the UFSHCI v2.1 spec) via the block > layer keyslot manager. Device specific drivers must set the > UFSHCD_CAP_CRYPTO in hba->caps before ufshcd_hba_init_crypto is called > to opt-in to inline encryption support. Note that it's now ufshcd_hba_init_crypto_capabilities(), not ufshcd_hba_init_crypto(). > > Patch 3 wires up ufshcd.c with the UFS crypto API introduced in Patch 2. > > This patch series has been tested on some Qualcomm chipsets (on the > db845c, sm8150-mtp and sm8250-mtp) using some additional patches at > https://lkml.kernel.org/linux-scsi/20200501045111.665881-1-ebiggers@xxxxxxxxxx/ > and on some Mediatek chipsets using the additional patch in > https://lkml.kernel.org/linux-scsi/20200304022101.14165-1-stanley.chu@xxxxxxxxxxxx/. > These additional patches are required because these chipsets need certain > additional behaviour not specified within the UFSHCI v2.1 spec. > > Thanks a lot to all the folks who tested this out! > > Changes v3 => v4: > - fix incorrect patch folding > - some cleanups from Eric > > Changes v2 => v3: > - introduce ufshcd_prepare_req_desc_hdr_crypto to clean up code slightly > - split up ufshcd_hba_init_crypto into ufshcd_hba_init_crypto_capabilities > and ufshcd_init_crypto. The first function is called from > ufshcd_hba_capabilities, and only reads crypto capabilities from device > registers and sets up appropriate crypto structures. The second function > is called from ufshcd_init, and actually initializes the inline crypto > hardware. > > Changes v1 => v2 > - handle OCS_DEVICE_FATAL_ERROR explicitly in ufshcd_transfer_rsp_status > > Satya Tangirala (3): > scsi: ufs: UFS driver v2.1 spec crypto additions > scsi: ufs: UFS crypto API > scsi: ufs: Add inline encryption support to UFS These patches look good to me. Avri and Alim, what do you think? We'd like these to be applied for 5.9. - Eric
