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ivshmem-test: Improve test cases /ivshmem/server-*

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Document missing test: behavior with MSI-X present but not enabled.

For MSI-X, we test and clear the interrupt pending bit before testing
the interrupt.  For INTx, we only clear.  Change to test and clear for
consistency.

Test MSI-X vector 1 in addition to vector 0.

Improve comments.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1458066895-20632-10-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2016-03-15 19:34:24 +01:00
parent 14c5d49ab3
commit 41b65e5eda
1 changed files with 10 additions and 7 deletions
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17
tests/ivshmem-test.c
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@ -339,18 +339,21 @@ static void test_ivshmem_server(bool msi)
vm2 = in_reg(s2, IVPOSITION);
g_assert_cmpuint(vm1, !=, vm2);
/* check number of MSI-X vectors */
global_qtest = s1->qtest;
if (msi) {
ret = qpci_msix_table_size(s1->dev);
g_assert_cmpuint(ret, ==, nvectors);
}
/* ping vm2 -> vm1 */
/* TODO test behavior before MSI-X is enabled */
/* ping vm2 -> vm1 on vector 0 */
if (msi) {
ret = qpci_msix_pending(s1->dev, 0);
g_assert_cmpuint(ret, ==, 0);
} else {
out_reg(s1, INTRSTATUS, 0);
g_assert_cmpuint(in_reg(s1, INTRSTATUS), ==, 0);
}
out_reg(s2, DOORBELL, vm1 << 16);
do {
@ -359,18 +362,18 @@ static void test_ivshmem_server(bool msi)
} while (ret == 0 && g_get_monotonic_time() < end_time);
g_assert_cmpuint(ret, !=, 0);
/* ping vm1 -> vm2 */
/* ping vm1 -> vm2 on vector 1 */
global_qtest = s2->qtest;
if (msi) {
ret = qpci_msix_pending(s2->dev, 0);
ret = qpci_msix_pending(s2->dev, 1);
g_assert_cmpuint(ret, ==, 0);
} else {
out_reg(s2, INTRSTATUS, 0);
g_assert_cmpuint(in_reg(s2, INTRSTATUS), ==, 0);
}
out_reg(s1, DOORBELL, vm2 << 16);
out_reg(s1, DOORBELL, vm2 << 16 | 1);
do {
g_usleep(10000);
ret = msi ? qpci_msix_pending(s2->dev, 0) : in_reg(s2, INTRSTATUS);
ret = msi ? qpci_msix_pending(s2->dev, 1) : in_reg(s2, INTRSTATUS);
} while (ret == 0 && g_get_monotonic_time() < end_time);
g_assert_cmpuint(ret, !=, 0);