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Mon, 16 Mar 2020 18:08:03 +0000 (GMT) Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A69D7BE04F; Mon, 16 Mar 2020 18:08:02 +0000 (GMT) Received: from localhost (unknown [9.85.153.64]) by b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 16 Mar 2020 18:08:02 +0000 (GMT) From: Raphael Moreira Zinsly To: linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org Subject: [PATCH 5/5] selftests/powerpc: Add README for GZIP engine tests Date: Mon, 16 Mar 2020 15:07:14 -0300 Message-Id: <20200316180714.18631-6-rzinsly@linux.ibm.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200316180714.18631-1-rzinsly@linux.ibm.com> References: <20200316180714.18631-1-rzinsly@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.645 definitions=2020-03-16_08:2020-03-12, 2020-03-16 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 adultscore=0 mlxlogscore=999 phishscore=0 bulkscore=0 mlxscore=0 priorityscore=1501 clxscore=1015 suspectscore=0 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003160078 X-Mailman-Approved-At: Tue, 17 Mar 2020 05:51:00 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Raphael Moreira Zinsly , haren@linux.ibm.com, herbert@gondor.apana.org.au, abali@us.ibm.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Include a README file with the instructions to use the testcases at selftests/powerpc/nx-gzip. Signed-off-by: Bulent Abali Signed-off-by: Raphael Moreira Zinsly --- .../powerpc/nx-gzip/99-nx-gzip.rules | 1 + .../testing/selftests/powerpc/nx-gzip/README | 44 +++++++++++++++++++ 2 files changed, 45 insertions(+) create mode 100644 tools/testing/selftests/powerpc/nx-gzip/99-nx-gzip.rules create mode 100644 tools/testing/selftests/powerpc/nx-gzip/README diff --git a/tools/testing/selftests/powerpc/nx-gzip/99-nx-gzip.rules b/tools/testing/selftests/powerpc/nx-gzip/99-nx-gzip.rules new file mode 100644 index 000000000000..5a7118495cb3 --- /dev/null +++ b/tools/testing/selftests/powerpc/nx-gzip/99-nx-gzip.rules @@ -0,0 +1 @@ +SUBSYSTEM=="nxgzip", KERNEL=="nx-gzip", MODE="0666" diff --git a/tools/testing/selftests/powerpc/nx-gzip/README b/tools/testing/selftests/powerpc/nx-gzip/README new file mode 100644 index 000000000000..ff0c817a65c5 --- /dev/null +++ b/tools/testing/selftests/powerpc/nx-gzip/README @@ -0,0 +1,44 @@ +Test the nx-gzip function: +========================= + +Verify that following device exists: + /dev/crypto/nx-gzip +If you get a permission error run as sudo or set the device permissions: + sudo chmod go+rw /dev/crypto/nx-gzip +However, chmod may not survive across boots. You may create a udev file such +as: + /etc/udev/rules.d/99-nx-gzip.rules + + +Then make and run: +$ make +gcc -O3 -I./inc -o gzfht_test gzfht_test.c gzip_vas.c +gcc -O3 -I./inc -o gunz_test gunz_test.c gzip_vas.c + + +Compress any file using Fixed Huffman mode. Output will have a .nx.gz suffix: +$ ./gzfht_test gzip_vas.c +file gzip_vas.c read, 5276 bytes +compressed 5276 to 2564 bytes total, crc32 checksum = b937a37d + + +Uncompress the previous output. Output will have a .nx.gunzip suffix: +$ ./gunz_test gzip_vas.c.nx.gz +gzHeader FLG 0 +00 00 00 00 04 03 +gzHeader MTIME, XFL, OS ignored +computed checksum b937a37d isize 0000149c +stored checksum b937a37d isize 0000149c +decomp is complete: fclose + + +Compare two files: +$ sha1sum gzip_vas.c.nx.gz.nx.gunzip gzip_vas.c +f041cd8581e8d920f79f6ce7f65411be5d026c2a gzip_vas.c.nx.gz.nx.gunzip +f041cd8581e8d920f79f6ce7f65411be5d026c2a gzip_vas.c + + +Note that the code here are intended for testing the nx-gzip hardware function. +They are not intended for demonstrating performance or compression ratio. +For more information and source code consider using: +https://github.com/libnxz/power-gzip -- 2.21.0