QEMU-Devel Archive on lore.kernel.org
 help / color / Atom feed
From: John Snow <jsnow@redhat.com>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, jsnow@redhat.com,
	Stefan Hajnoczi <stefanha@redhat.com>
Subject: [Qemu-devel] [PULL 1/3] qtest/ide: add another short PRDT test flavor
Date: Mon, 20 Jul 2015 14:29:19 -0400
Message-ID: <1437416961-26348-2-git-send-email-jsnow@redhat.com> (raw)
In-Reply-To: <1437416961-26348-1-git-send-email-jsnow@redhat.com>

From: Stefan Hajnoczi <stefanha@redhat.com>

The existing short PRDT test case does not transfer any data because the
first PRD is less than 1 sector.

This patch adds another short PRDT test case where the first sector can
be read but the PRDT is still smaller than the requested number of
sectors.  This exercises a different code path in ide_dma_cb().

Cc: John Snow <jsnow@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1435770571-9906-1-git-send-email-stefanha@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/ide-test.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/tests/ide-test.c b/tests/ide-test.c
index 78382e9..4a07e3a 100644
--- a/tests/ide-test.c
+++ b/tests/ide-test.c
@@ -339,6 +339,31 @@ static void test_bmdma_short_prdt(void)
     assert_bit_clear(inb(IDE_BASE + reg_status), DF | ERR);
 }
 
+static void test_bmdma_one_sector_short_prdt(void)
+{
+    uint8_t status;
+
+    /* Read 2 sectors but only give 1 sector in PRDT */
+    PrdtEntry prdt[] = {
+        {
+            .addr = 0,
+            .size = cpu_to_le32(0x200 | PRDT_EOT),
+        },
+    };
+
+    /* Normal request */
+    status = send_dma_request(CMD_READ_DMA, 0, 2,
+                              prdt, ARRAY_SIZE(prdt));
+    g_assert_cmphex(status, ==, 0);
+    assert_bit_clear(inb(IDE_BASE + reg_status), DF | ERR);
+
+    /* Abort the request before it completes */
+    status = send_dma_request(CMD_READ_DMA | CMDF_ABORT, 0, 2,
+                              prdt, ARRAY_SIZE(prdt));
+    g_assert_cmphex(status, ==, 0);
+    assert_bit_clear(inb(IDE_BASE + reg_status), DF | ERR);
+}
+
 static void test_bmdma_long_prdt(void)
 {
     uint8_t status;
@@ -592,6 +617,8 @@ int main(int argc, char **argv)
     qtest_add_func("/ide/bmdma/setup", test_bmdma_setup);
     qtest_add_func("/ide/bmdma/simple_rw", test_bmdma_simple_rw);
     qtest_add_func("/ide/bmdma/short_prdt", test_bmdma_short_prdt);
+    qtest_add_func("/ide/bmdma/one_sector_short_prdt",
+                   test_bmdma_one_sector_short_prdt);
     qtest_add_func("/ide/bmdma/long_prdt", test_bmdma_long_prdt);
     qtest_add_func("/ide/bmdma/no_busmaster", test_bmdma_no_busmaster);
     qtest_add_func("/ide/bmdma/teardown", test_bmdma_teardown);
-- 
2.1.0

  reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-20 18:29 [Qemu-devel] [PULL 0/3] Ide patches John Snow
2015-07-20 18:29 ` John Snow [this message]
2015-07-20 18:29 ` [Qemu-devel] [PULL 2/3] ahci: Force ICC bits in PxCMD to zero John Snow
2015-07-21 11:38   ` Peter Maydell
2015-07-21 12:55     ` Eric Blake
2015-07-21 13:02       ` Peter Maydell
2015-07-21 17:41         ` John Snow
2015-07-20 18:29 ` [Qemu-devel] [PULL 3/3] tests: Fix broken targets check-report-qtest-* John Snow
2015-07-21 10:18 ` [Qemu-devel] [PULL 0/3] Ide patches Peter Maydell

Reply instructions:

You may reply publically 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=1437416961-26348-2-git-send-email-jsnow@redhat.com \
    --to=jsnow@redhat.com \
    --cc=peter.maydell@linaro.org \
    --cc=qemu-devel@nongnu.org \
    --cc=stefanha@redhat.com \
    /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

QEMU-Devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/qemu-devel/0 qemu-devel/git/0.git
	git clone --mirror https://lore.kernel.org/qemu-devel/1 qemu-devel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 qemu-devel qemu-devel/ https://lore.kernel.org/qemu-devel \
		qemu-devel@nongnu.org
	public-inbox-index qemu-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.nongnu.qemu-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git