From c529aa30337b928bd6bc34293608cb3d4505856e Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Fri, 6 Sep 2013 16:51:16 -0700 Subject: [PATCH] NTB: Xeon Doorbell errata workaround Modifications to the 14th bit of the B2BDOORBELL register will not be mirrored to the remote system due to a hardware issue. To get around the issue, shrink the number of available doorbell bits by 1. The max number of doorbells was being used as a way to referencing the Link Doorbell bit. Since this would no longer work, the driver must now explicitly reference that bit. This does not affect the xeon_errata_workaround case, as it is not using the b2bdoorbell register. Signed-off-by: Jon Mason --- Reading git-format-patch failed