e716691a45
This removes a large amount of boilerplate code. Signed-off-by: David Disseldorp <ddiss@suse.de>
122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
/*
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Copyright (C) SUSE LINUX GmbH 2016
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <signal.h>
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#include <poll.h>
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#include <CUnit/CUnit.h>
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#include "iscsi.h"
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#include "scsi-lowlevel.h"
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#include "iscsi-support.h"
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#include "iscsi-test-cu.h"
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#include "iscsi-multipath.h"
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struct tests_async_read_state {
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uint32_t dispatched;
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uint32_t completed;
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uint32_t prev_cmdsn;
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};
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static void
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test_async_read_cb(struct iscsi_context *iscsi __attribute__((unused)),
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int status, void *command_data, void *private_data)
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{
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struct scsi_task *atask = command_data;
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struct tests_async_read_state *state = private_data;
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state->completed++;
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logging(LOG_VERBOSE, "READ10 completed: %d of %d (CmdSN=%d)",
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state->completed, state->dispatched, atask->cmdsn);
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CU_ASSERT_NOT_EQUAL(status, SCSI_STATUS_CHECK_CONDITION);
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if ((state->completed > 1) && (atask->cmdsn != state->prev_cmdsn + 1)) {
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logging(LOG_VERBOSE,
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"out of order completion (CmdSN=%d, prev=%d)",
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atask->cmdsn, state->prev_cmdsn);
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}
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state->prev_cmdsn = atask->cmdsn;
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scsi_free_scsi_task(atask);
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}
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void
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test_async_read(void)
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{
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int i, ret;
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struct tests_async_read_state state = { 0, 0, 0 };
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const int blocks_per_io = 8;
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const int num_ios = 1000;
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unsigned char *buf = NULL;
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CHECK_FOR_DATALOSS;
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CHECK_FOR_SBC;
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CHECK_FOR_ISCSI(sd);
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/* IOs in flight concurrently, so need a buffer large enough for all */
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buf = calloc(block_size * blocks_per_io, num_ios);
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CU_ASSERT_NOT_EQUAL(buf, NULL);
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if (!buf)
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goto out;
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if (maximum_transfer_length
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&& (maximum_transfer_length < (blocks_per_io * num_ios))) {
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CU_PASS("[SKIPPED] device too small for async_read test");
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goto out;
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}
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for (i = 0; i < num_ios; i++) {
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uint32_t lba = i * blocks_per_io;
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struct scsi_task *atask;
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atask = scsi_cdb_read10(lba, blocks_per_io * block_size,
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block_size, 0, 0, 0, 0, 0);
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CU_ASSERT_PTR_NOT_NULL_FATAL(atask);
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ret = scsi_task_add_data_in_buffer(atask,
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blocks_per_io * block_size,
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&buf[lba * block_size]);
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CU_ASSERT_EQUAL(ret, 0);
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ret = iscsi_scsi_command_async(sd->iscsi_ctx, sd->iscsi_lun,
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atask, test_async_read_cb, NULL,
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&state);
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CU_ASSERT_EQUAL(ret, 0);
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state.dispatched++;
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logging(LOG_VERBOSE, "READ10 dispatched: %d of %d (cmdsn=%d)",
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state.dispatched, num_ios, atask->cmdsn);
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}
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while (state.completed < state.dispatched) {
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struct pollfd pfd;
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pfd.fd = iscsi_get_fd(sd->iscsi_ctx);
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pfd.events = iscsi_which_events(sd->iscsi_ctx);
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ret = poll(&pfd, 1, -1);
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CU_ASSERT_NOT_EQUAL(ret, -1);
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ret = iscsi_service(sd->iscsi_ctx, pfd.revents);
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CU_ASSERT_EQUAL(ret, 0);
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}
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out:
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free(buf);
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}
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