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authorRamachandra K <rkuchimanchi@silverstorm.com>2006-06-17 20:37:38 -0700
committerRoland Dreier <rolandd@cisco.com>2006-06-17 20:37:38 -0700
commit0c0450db31481aa01a04e7faecc93ee6841972d6 (patch)
treec7a1ed2896345d022011831f8a9aaa21e8d8ff00 /include/rdma
parent[SCSI] srp.h: Add I/O Class values (diff)
downloadlinux-dev-0c0450db31481aa01a04e7faecc93ee6841972d6.tar.xz
linux-dev-0c0450db31481aa01a04e7faecc93ee6841972d6.zip
IB/srp: Support SRP rev. 10 targets
There has been a change in the format of port identifiers between revision 10 of the SRP specification and the current revision 16A. Revision 10 specifies port identifier format as lower 8 bytes : GUID upper 8 bytes : Extension Whereas revision 16A specifies it as lower 8 bytes : Extension upper 8 bytes : GUID There are older targets (e.g. SilverStorm Virtual Fibre Channel Bridge) which conform to revision 10 of the SRP specification. The I/O class of revision 10 is 0xFF00 and the I/O class of revision 16A is 0x0100. For supporting older targets, this patch: 1) Adds a new optional target creation parameter "io_class". Default value of io_class is 0x0100 (i.e. revision 16A) 2) Uses the correct port identifier format for targets with IO class of 0xFF00 (i.e. conforming to revision 10) Signed-off-by: Ramachandra K <rkuchimanchi@silverstorm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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