18 Jan, 2010

1 commit

• eda05a28e   [SCSI] fc-transport: Use packed modifier for fc_bsg_request structure. ... Browse Code »

  The 32bit kernel does not add padding bytes in the fc_bsg_request structure
  whereas the 64bit kernel adds padding bytes in the fc_bsg_request structure.
  Due to this, structure elements gets mismatched with 32bit application and
  64bit kernel.To resolve this, used packed modifier to avoid adding padding bytes.
  Signed-off-by: Giridhar Malavali
  Signed-off-by: James Bottomley

  Harish Zunjarrao

  2010-01-18 02:36:33 +0800  

13 Jun, 2009

1 commit

• 9e4f5e296   [SCSI] FC Pass Thru support ... Browse Code »

  Attached is the ELS/CT pass-thru patch for the FC Transport. The patch
  creates a generic framework that lays on top of bsg and the SGIO v4 ioctl
  in order to pass transaction requests to LLDD's.

  The interface supports the following operations:
  On an fc_host basis:
  Request login to the specified N_Port_ID, creating an fc_rport.
  Request logout of the specified N_Port_ID, deleting an fc_rport
  Send ELS request to specified N_Port_ID w/o requiring a login, and
  wait for ELS response.
  Send CT request to specified N_Port_ID and wait for CT response.
  Login is required, but LLDD is allowed to manage login and decide
  whether it stays in place after the request is satisfied.
  Vendor-Unique request. Allows a LLDD-specific request to be passed
  to the LLDD, and the passing of a response back to the application.
  On an fc_rport basis:
  Send ELS request to nport and wait for ELS response.
  Send CT request to nport and wait for CT response.

  The patch also exports several headers from include/scsi such that
  they can be available to user-space applications:
  include/scsi/scsi.h
  include/scsi/scsi_netlink.h
  include/scsi/scsi_netlink_fc.h
  include/scsi/scsi_bsg_fc.h

  For further information, refer to the last RFC:
  http://marc.info/?l=linux-scsi&m=123436574018579&w=2

  Note: Documentation is still spotty and will be added later.

  [bharrosh@panasas.com: update for new block API]
  Signed-off-by: James Smart
  Signed-off-by: James Bottomley

  James Smart

  2009-06-13 03:20:05 +0800