tree 7c4a11084b233e1899aec6c247435f3478bbd3b5
parent 492dfb489658dfe4a755fa29dd0e34e9c8bd8fb8
author James Bottomley <James.Bottomley@steeleye.com> 1156945551 -0400
committer James Bottomley <jejb@mulgrave.il.steeleye.com> 1157037483 -0400

[SCSI] add shared tag map helpers

This patch adds support for sharing tag maps at the host level
(i.e. either every queue [LUN] has its own tag map or there's a single
one for the entire host).  This formulation is primarily intended to
help single issue queue hardware, like the aic7xxx

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>