Re: [PATCH 02/15] target: separate acl name from port ids

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On 5/10/20 2:57 PM, Mike Christie wrote:
> The PGR code assumes the ACL name is going to be based on the SPC4
> transportID type of values. The problem is that for iSCSI we have an extra
> session id as part of the SCSI port id and some fabric modules support or
> would like to support non transportID values for the ACL name. For example,
> iSCSI and SRP would like to use the source address for the ACL name, but
> that is not a valud transportID value that you can get in a PGR request.
> 
> This patch adds a new transport_id struct which maps to the SPC4
> transportID. In the future it will be used for PGR commands instead of the
> ACL name. In this patchset it is used to export the initiator info in the
> session's sysfs dir, so tools can display the info and daemons that execute
> commands like PGRs in userspace can build a session id to I_T nexus mapping.
> 
> In this patch only srp is passing in different values for the transport id
> and acl name. The next patches will convert loop, scsi vhost and xen
> scsiback that are more complex due to their initiator name emulation.
> 
> Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Cc: Jason Wang <jasowang@xxxxxxxxxx>
> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Cc: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
> Cc: Juergen Gross <jgross@xxxxxxxx>
> Signed-off-by: Mike Christie <mchristi@xxxxxxxxxx>
> ---
> 
> V4:
> - Don't drop const char use. We still have target_setup_session allocate
> the transport_id struct, but because every uses format=0 we just need to
> pass in the transport_id's name.
> 
> V3:
> - drop format
> 
>  drivers/infiniband/ulp/srpt/ib_srpt.c    | 10 +++++---
>  drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c |  4 +--
>  drivers/scsi/qla2xxx/tcm_qla2xxx.c       |  2 +-
>  drivers/target/loopback/tcm_loop.c       |  3 ++-
>  drivers/target/sbp/sbp_target.c          |  2 +-
>  drivers/target/target_core_fabric_lib.c  | 41 +++++++++++++++++++++++++++++++
>  drivers/target/target_core_transport.c   | 42 ++++++++++++++++++++++++--------
>  drivers/target/tcm_fc/tfc_sess.c         |  3 ++-
>  drivers/usb/gadget/function/f_tcm.c      |  3 ++-
>  drivers/vhost/scsi.c                     |  1 +
>  drivers/xen/xen-scsiback.c               |  3 ++-
>  include/target/target_core_base.h        | 12 +++++++++
>  include/target/target_core_fabric.h      |  5 +++-
>  13 files changed, 108 insertions(+), 23 deletions(-)
> 

Reviewed-by: Lee Duncan <lduncan@xxxxxxxx>



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