diff --git a/test-tool/Makefile.am b/test-tool/Makefile.am
index 8bbb8a4..50db484 100644
--- a/test-tool/Makefile.am
+++ b/test-tool/Makefile.am
@@ -221,7 +221,8 @@ iscsi_test_cu_SOURCES = iscsi-test-cu.c \
test_writeverify16_residuals.c \
test_multipathio_simple.c \
test_multipathio_reset.c \
- test_multipathio_compareandwrite.c
+ test_multipathio_compareandwrite.c \
+ test_async_read.c
endif
diff --git a/test-tool/iscsi-test-cu.c b/test-tool/iscsi-test-cu.c
index a640688..ef27f52 100644
--- a/test-tool/iscsi-test-cu.c
+++ b/test-tool/iscsi-test-cu.c
@@ -227,6 +227,7 @@ static CU_TestInfo tests_read10[] = {
{ (char *)"ZeroBlocks", test_read10_0blocks },
{ (char *)"ReadProtect", test_read10_rdprotect },
{ (char *)"DpoFua", test_read10_dpofua },
+ { (char *)"Async", test_async_read },
CU_TEST_INFO_NULL
};
diff --git a/test-tool/iscsi-test-cu.h b/test-tool/iscsi-test-cu.h
index 38f900f..67ebdef 100644
--- a/test-tool/iscsi-test-cu.h
+++ b/test-tool/iscsi-test-cu.h
@@ -145,6 +145,7 @@ void test_read10_rdprotect(void);
void test_read10_dpofua(void);
void test_read10_residuals(void);
void test_read10_invalid(void);
+void test_async_read(void);
void test_read12_simple(void);
void test_read12_beyond_eol(void);
diff --git a/test-tool/test_async_read.c b/test-tool/test_async_read.c
new file mode 100644
index 0000000..d213ee5
--- /dev/null
+++ b/test-tool/test_async_read.c
@@ -0,0 +1,119 @@
+/*
+ Copyright (C) SUSE LINUX GmbH 2016
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, see .
+*/
+
+#include
+#include
+#include
+
+#include
+
+#include "iscsi.h"
+#include "scsi-lowlevel.h"
+#include "iscsi-support.h"
+#include "iscsi-test-cu.h"
+#include "iscsi-multipath.h"
+
+struct tests_async_read_state {
+ uint32_t dispatched;
+ uint32_t completed;
+ uint32_t prev_cmdsn;
+};
+
+static void
+test_async_read_cb(struct iscsi_context *iscsi __attribute__((unused)),
+ int status, void *command_data, void *private_data)
+{
+ struct scsi_task *atask = command_data;
+ struct tests_async_read_state *state = private_data;
+
+ state->completed++;
+ logging(LOG_VERBOSE, "READ10 completed: %d of %d (CmdSN=%d)",
+ state->completed, state->dispatched, atask->cmdsn);
+ CU_ASSERT_NOT_EQUAL(status, SCSI_STATUS_CHECK_CONDITION);
+
+ if ((state->completed > 1) && (atask->cmdsn != state->prev_cmdsn + 1)) {
+ logging(LOG_VERBOSE,
+ "out of order completion (CmdSN=%d, prev=%d)",
+ atask->cmdsn, state->prev_cmdsn);
+ }
+ state->prev_cmdsn = atask->cmdsn;
+
+ scsi_free_scsi_task(atask);
+}
+
+void
+test_async_read(void)
+{
+ int i, ret;
+ struct tests_async_read_state state = { 0 };
+ int blocksize = 512;
+ int blocks_per_io = 8;
+ int num_ios = 1000;
+ /* IOs in flight concurrently, so need a buffer large enough for all */
+ unsigned char buf[blocksize * blocks_per_io * num_ios];
+
+ CHECK_FOR_DATALOSS;
+ CHECK_FOR_SBC;
+ if (sd->iscsi_ctx == NULL) {
+ CU_PASS("[SKIPPED] Non-iSCSI");
+ return;
+ }
+
+ if (maximum_transfer_length
+ && (maximum_transfer_length < (blocks_per_io * num_ios))) {
+ CU_PASS("[SKIPPED] device too small for async_read test");
+ return;
+ }
+
+ memset(buf, 0, blocksize * blocks_per_io * num_ios);
+
+ for (i = 0; i < num_ios; i++) {
+ uint32_t lba = i * blocks_per_io;
+ struct scsi_task *atask;
+
+ atask = scsi_cdb_read10(lba, blocks_per_io * blocksize,
+ blocksize, 0, 0, 0, 0, 0);
+ CU_ASSERT_PTR_NOT_NULL_FATAL(atask);
+
+ ret = scsi_task_add_data_in_buffer(atask,
+ blocks_per_io * blocksize,
+ &buf[lba * blocksize]);
+ CU_ASSERT_EQUAL(ret, 0);
+
+ ret = iscsi_scsi_command_async(sd->iscsi_ctx, sd->iscsi_lun,
+ atask, test_async_read_cb, NULL,
+ &state);
+ CU_ASSERT_EQUAL(ret, 0);
+
+ state.dispatched++;
+ logging(LOG_VERBOSE, "READ10 dispatched: %d of %d (cmdsn=%d)",
+ state.dispatched, num_ios, atask->cmdsn);
+ }
+
+ while (state.completed < state.dispatched) {
+ struct pollfd pfd;
+
+ pfd.fd = iscsi_get_fd(sd->iscsi_ctx);
+ pfd.events = iscsi_which_events(sd->iscsi_ctx);
+
+ ret = poll(&pfd, 1, -1);
+ CU_ASSERT_NOT_EQUAL(ret, -1);
+
+ ret = iscsi_service(sd->iscsi_ctx, pfd.revents);
+ CU_ASSERT_EQUAL(ret, 0);
+ }
+}