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Add support for UNMAP command and add a simple test for this opcode

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This commit is contained in:
Ronnie Sahlberg
2012-04-22 08:09:15 +10:00
parent d71a9d4f95
commit dd5f94b2ca
10 changed files with 260 additions and 2 deletions
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134
test-tool/0170_unmap_simple.c Normal file
View File

@@ -0,0 +1,134 @@
/*
Copyright (C) 2012 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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 <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include "iscsi.h"
#include "scsi-lowlevel.h"
#include "iscsi-test.h"
int T0170_unmap_simple(const char *initiator, const char *url)
{
struct iscsi_context *iscsi;
struct scsi_task *task;
struct scsi_readcapacity16 *rc16;
int ret, i, lun;
uint32_t block_size, num_blocks;
iscsi = iscsi_context_login(initiator, url, &lun);
if (iscsi == NULL) {
printf("Failed to login to target\n");
return -1;
}
/* find the size of the LUN */
task = iscsi_readcapacity16_sync(iscsi, lun);
if (task == NULL) {
printf("Failed to send readcapacity16 command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto finished;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("Readcapacity command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
rc16 = scsi_datain_unmarshall(task);
if (rc16 == NULL) {
printf("failed to unmarshall readcapacity16 data. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
if (rc16->lbpme == 0){
printf("Logical unit is fully provisioned. Skipping test\n");
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
block_size = rc16->block_length;
num_blocks = rc16->returned_lba;
scsi_free_scsi_task(task);
if (!data_loss) {
printf("data_loss flag is not set. Skipping test\n");
ret = -1;
goto finished;
}
ret = 0;
/* unmap the first 1 - 256 blocks at the start of the LUN */
printf("Unmapping first 1-256 blocks ... ");
for (i=1; i<=256; i++) {
struct unmap_list list[1];
list[0].lba = 0;
list[0].num = i;
task = iscsi_unmap_sync(iscsi, lun, 0, 0, &list[0], 1);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send UNMAP command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto finished;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("UNMAP command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
scsi_free_scsi_task(task);
}
printf("[OK]\n");
/* unmap the last 1 - 256 blocks at the end of the LUN */
printf("Unmapping last 1-256 blocks ... ");
for (i=1; i<=256; i++) {
struct unmap_list list[1];
list[0].lba = num_blocks + 1 - i;
list[0].num = i;
task = iscsi_unmap_sync(iscsi, lun, 0, 0, &list[0], 1);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send UNMAP command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto finished;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("UNMAP command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
scsi_free_scsi_task(task);
}
printf("[OK]\n");
finished:
iscsi_logout_sync(iscsi);
iscsi_destroy_context(iscsi);
return ret;
}

5
test-tool/iscsi-test.c
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@@ -29,6 +29,7 @@
#include "iscsi-test.h"
const char *initiator = "iqn.2010-11.iscsi-test";
int data_loss = 0;
struct scsi_test {
const char *name;
@@ -67,6 +68,9 @@ struct scsi_test tests[] = {
/* readcapacity16*/
{ "T0160_readcapacity16_simple", T0160_readcapacity16_simple },
/* unmap*/
{ "T0170_unmap_simple", T0170_unmap_simple },
{ NULL, NULL }
};
@@ -161,6 +165,7 @@ int main(int argc, const char *argv[])
{ "list", 'l', POPT_ARG_NONE, &list_tests, 0, "List all tests", NULL },
{ "initiator-name", 'i', POPT_ARG_STRING, &initiator, 0, "Initiatorname to use", "iqn-name" },
{ "test", 't', POPT_ARG_STRING, &testname, 0, "Which test to run", "testname" },
{ "dataloss", 0, POPT_ARG_NONE, &data_loss, 0, "Allow destructuve tests", NULL },
POPT_TABLEEND
};

3
test-tool/iscsi-test.h
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@@ -18,6 +18,7 @@
*/
struct iscsi_context *iscsi_context_login(const char *initiatorname, const char *url, int *lun);
extern int data_loss;
int T0100_read10_simple(const char *initiator, const char *url);
@@ -43,3 +44,5 @@ int T0143_read12_rdprotect(const char *initiator, const char *url);
int T0153_read16_rdprotect(const char *initiator, const char *url);
int T0160_readcapacity16_simple(const char *initiator, const char *url);
int T0170_unmap_simple(const char *initiator, const char *url);