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[158.94.182.130]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-89c85215615sm91770346d6.10.2026.03.23.08.55.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Mar 2026 08:55:24 -0700 (PDT) Date: Mon, 23 Mar 2026 10:55:17 -0500 From: Gregory Price To: Li Ming Cc: dave@stgolabs.net, jonathan.cameron@huawei.com, dave.jiang@intel.com, alison.schofield@intel.com, vishal.l.verma@intel.com, ira.weiny@intel.com, dan.j.williams@intel.com, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 1/1] cxl/hdm: Add support for 32 switch decoders Message-ID: References: <20260321061459.1910205-1-ming.li@zohomail.com> 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-Disposition: inline In-Reply-To: <20260321061459.1910205-1-ming.li@zohomail.com> On Sat, Mar 21, 2026 at 02:14:59PM +0800, Li Ming wrote: > Per CXL r4.0 section 8.2.4.20.1. CXL host bridge and switch ports can > support 32 HDM decoders. Current implementation misses some decoders on > CXL host bridge and switch in the case that the value of Decoder Count > field in CXL HDM decoder Capability Register is greater than or equal to > 9. > > Update calculation implementation to ensure the decoder count calculation > is correct for CXL host bridge/switch ports. > > Signed-off-by: Li Ming Reviewed-by: Gregory Price