From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2B4743C1F31 for ; Wed, 9 Sep 2026 19:38:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788982707; cv=none; b=FsiTpEFbT86symasNe3ALVWTP0Fu9Xr34bFUka6Kdk85fxxkMBo6ZwH1x1Xy689U+8UjoulRDOQkxMTRJvkYOxzp4K3xQFhvdzpUKvYGrTl9zYLoMW8SnJYKqNRVZ9Usw9mslNNSlXqvGgxVQQiXtYnTfdF1qfnTR0vZFyefZaY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788982707; c=relaxed/simple; bh=vDtaNZzH3e2xlpfsoFlVhNv2EQM9QV0i5Pm5ZX+bGHg=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=geEuwiVFJ8CvAvZ+Yr2I4i8NOq/y7U3SEWooWEyT267qBCoXZU/Dwl3HV0xu2t/hNcvTNkwwrrrF2SwHTYBTAgj5559VoeQ8ZHv626aTwPq07/STnidkDHc+ORqV0yFtktP4nWLcT57F59R1XGFq062HJuMR6NRXWinkY2I+VUA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eNSmwjeA; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eNSmwjeA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C84E81F0089B; Wed, 9 Sep 2026 19:38:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788982702; bh=EoXRzroIS0rYBAXc7OVVvsZtKJ5lbhA5JY3K+BeAsgQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=eNSmwjeAfYx3P3qa5WD9b8Qg3ICMSQdGFIiOJXXptNwlg6uBnH9QN8ACTyd4Qw3Ai h5Z6HyfSQGjwDTXN59PpKUGVPj5k7iz0PNtW4XQAMerCO/12FIr3TznPWm9lR2eBUL wtZrtU9NyHjwBJulSogebUDDd71JzaVH8l4QtuE1Zfi24pmLW+XKmGnIl44kOejgXY sPM08sGgvdIhNwLnaA1nq8UtI8/LO0gROzCljwASX5nSX7jy2zPJ+y0SuWwN73WD6H Z3MAa6gCQy5R90GtF+5Q7v7ars6z2PoeeaWmsmUTnvg0qbgGMhdoasgfiYBlBP0MdV EIP6eSeF/yWvA== Date: Wed, 9 Sep 2026 20:38:15 +0100 From: Jonathan Cameron To: Davidlohr Bueso Cc: dave.jiang@intel.com, alison.schofield@intel.com, icheng@nvidia.com, ming.li@zohomail.com, benjamin.cheatham@amd.com, alucerop@amd.com, linux-cxl@vger.kernel.org Subject: Re: [PATCH v8 01/10] cxl: Add BI register probing and port initialization Message-ID: <20260909203815.61d8fc5d@jic23-hlaptop> In-Reply-To: <20260909170302.1550680-2-dave@stgolabs.net> References: <20260909170302.1550680-1-dave@stgolabs.net> <20260909170302.1550680-2-dave@stgolabs.net> X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 9 Sep 2026 10:02:53 -0700 Davidlohr Bueso wrote: > Add register probing for BI Route Table and BI Decoder capability > structures in cxl_probe_component_regs(), and helpers to map them. > > cxl_dport_map_bi() maps the BI Decoder of a downstream port (root > port or switch DSP) at dport-creation time via cxl_port_add_dport(); > devm_cxl_port_bi_setup() maps a port's own BI capability during port > probe when the upstream link is in 256B Flit operation -- BI Decoder > for an endpoint, BI RT for a switch USP. > > Reviewed-by: Dave Jiang > Reviewed-by: Alison Schofield > Reviewed-by: Li Ming > Signed-off-by: Davidlohr Bueso Reviewed-by: Jonathan Cameron