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[2001:1c00:c32:7800:5bfa:a036:83f0:f9ec]) by smtp.gmail.com with ESMTPSA id lm15-20020a170906980f00b0093034e71b94sm750503ejb.65.2023.03.16.02.50.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 16 Mar 2023 02:50:13 -0700 (PDT) Message-ID: <076097bc-1e7e-72d9-efa9-79d6a94d3f0a@redhat.com> Date: Thu, 16 Mar 2023 10:50:12 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: [PATCH v3 4/8] platform/x86/intel/ifs: Introduce Array Scan test to IFS Content-Language: en-US, nl To: "Joseph, Jithu" , "Luck, Tony" , "markgross@kernel.org" Cc: "tglx@linutronix.de" , "mingo@redhat.com" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , "x86@kernel.org" , "hpa@zytor.com" , "gregkh@linuxfoundation.org" , "rostedt@goodmis.org" , "Raj, Ashok" , "linux-kernel@vger.kernel.org" , "platform-driver-x86@vger.kernel.org" , "patches@lists.linux.dev" , "Shankar, Ravi V" , "Macieira, Thiago" , "Jimenez Gonzalez, Athenas" , "Mehta, Sohil" References: <20230214234426.344960-1-jithu.joseph@intel.com> <20230301015942.462799-1-jithu.joseph@intel.com> <20230301015942.462799-5-jithu.joseph@intel.com> <7f82f241-39ee-15e0-1ae7-e98e50730c95@redhat.com> <275d2f04-782f-2c9d-187a-7a510bf34f41@redhat.com> <363aa89e-de06-6fc4-e396-d8cc311017b9@intel.com> From: Hans de Goede In-Reply-To: <363aa89e-de06-6fc4-e396-d8cc311017b9@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org Hi, On 3/15/23 20:29, Joseph, Jithu wrote: > > > On 3/13/2023 10:21 AM, Luck, Tony wrote: > >> >> >> I'm not sure this is better than splitting the tests into different directories. >> > > To provide a bit more context to Tony's response - > There are similarities between tests (one of the test inputs is cpu number , which is > common among different tests , so are the test outputs described via status / details attributes) > and some differences too (distinct to each test are the test patterns, some tests needs to > load test patterns appropriate for that test type and some does not) > > Current approach of keeping each test's attributes in its own directory (intel_ifs_n) > allows the driver to account for the differences naturally, for e.g load test file > suited for a specific test. (I.e if the load is issued from intel_ifs_ , the driver > will load test patterns from /lib/firmware/intel/ifs/ifs_/ff-mm-ss-xx.). > If load is not applicable for a test type , test directory doesn’t show load and image_version attributes). > > As Tony mentioned, similar effect might be achieved using distinct load / run (and image_version) > files for each test type, but the current approach of organizing files per test feels a little > bit more intuitive. > > Grouping attributes per test was the original design intent , when the first test was introduced, > as indicated by the existing ABI doc (Documentation/ABI/testing/sysfs-platform-intel-ifs), > wherein attributes are described under /sys/devices/virtual/misc/intel_ifs_/ … Ok I see, lets go with 1 intel_ifs device per test-type then. If I understood things correctly esp. also with the /lib/firmware path then the in intel_ifs_ basically specifies the test-type, correct ? If I have that correct please add this to the ABI documentation in the form of a list with intel_ifs_ <-> test-type mappings. And also add documentation to each attribute for which test-types the attribute is valid (this can be "all" for e.g. status, to avoid churn when adding more test types). > Hans, Shall I revise the series incorporating the rest of your comments ? Yes please. Regards, Hans