From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [PATCH 18/18] staging/rdma/hfi1: Workaround CONFIG_SDMA_VERBOSITY timing issue Date: Thu, 19 Nov 2015 17:11:35 -0800 Message-ID: <20151120011135.GH11695@kroah.com> References: <1447472236-622-1-git-send-email-jubin.john@intel.com> <1447472236-622-18-git-send-email-jubin.john@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1447472236-622-18-git-send-email-jubin.john-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jubin John Cc: devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org List-Id: linux-rdma@vger.kernel.org On Fri, Nov 13, 2015 at 07:37:16PM -0800, Jubin John wrote: > Enabling CONFIG_SDMA_VERBOSITY exposes a timing issue in the > driver/DC firmware. Removing the CCE_INT_* CSR reads from > sdma_dumpstate and a sdma_dumpstate call from the sdma_sendctrl() > works around the issue That sounds like a horrid hack, and this implies that a slower machine will still have this problem... -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html