From: Raphael Moreira Zinsly <rzinsly@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org
Cc: herbert@gondor.apana.org.au, mpe@ellerman.id.au,
haren@linux.ibm.com, abali@us.ibm.com, dja@axtens.net,
Raphael Moreira Zinsly <rzinsly@linux.ibm.com>
Subject: [PATCH V2 5/5] selftests/powerpc: Add README for GZIP engine tests
Date: Fri, 27 Mar 2020 15:16:11 -0300 [thread overview]
Message-ID: <20200327181610.13762-6-rzinsly@linux.ibm.com> (raw)
In-Reply-To: <20200327181610.13762-1-rzinsly@linux.ibm.com>
Include a README file with the instructions to use the
testcases at selftests/powerpc/nx-gzip.
Signed-off-by: Bulent Abali <abali@us.ibm.com>
Signed-off-by: Raphael Moreira Zinsly <rzinsly@linux.ibm.com>
---
.../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..a80c289f1d2c
--- /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, 5218 bytes
+compressed 5218 to 2545 bytes total, crc32 checksum = 817543a3
+
+
+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 817543a3 isize 00001462
+stored checksum 817543a3 isize 00001462
+decomp is complete: fclose
+
+
+Compare two files:
+$ sha1sum gzip_vas.c.nx.gz.nx.gunzip gzip_vas.c
+4e87536f3ee9e771ef30fb0fb27572032ca44ef8 gzip_vas.c.nx.gz.nx.gunzip
+4e87536f3ee9e771ef30fb0fb27572032ca44ef8 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
prev parent reply other threads:[~2020-03-27 18:16 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 18:16 [PATCH V2 0/5] selftests/powerpc: Add NX-GZIP engine testcase Raphael Moreira Zinsly
2020-03-27 18:16 ` [PATCH V2 1/5] selftests/powerpc: Add header files for GZIP engine test Raphael Moreira Zinsly
2020-03-27 18:16 ` [PATCH V2 2/5] selftests/powerpc: Add header files for NX compresion/decompression Raphael Moreira Zinsly
2020-03-27 18:16 ` [PATCH V2 3/5] selftests/powerpc: Add NX-GZIP engine compress testcase Raphael Moreira Zinsly
2020-04-02 6:17 ` Daniel Axtens
2020-04-02 10:55 ` Michael Ellerman
2020-04-08 13:21 ` Raphael Moreira Zinsly
2020-03-27 18:16 ` [PATCH V2 4/5] selftests/powerpc: Add NX-GZIP engine decompress testcase Raphael Moreira Zinsly
2020-03-27 18:16 ` Raphael Moreira Zinsly [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200327181610.13762-6-rzinsly@linux.ibm.com \
--to=rzinsly@linux.ibm.com \
--cc=abali@us.ibm.com \
--cc=dja@axtens.net \
--cc=haren@linux.ibm.com \
--cc=herbert@gondor.apana.org.au \
--cc=linux-crypto@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).