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bdev/iscsi: move libiscsi code from initialize to create function

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Change-Id: I75876cca6a35b366ce7d52cbd0eda0df4b6d9817
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/410890
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Pawel Wodkowski 2018-04-26 16:34:56 +02:00 committed by Daniel Verkamp
parent d2bd0a77a3
commit 81866c26d8
1 changed files with 72 additions and 58 deletions
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130
lib/bdev/iscsi/bdev_iscsi.c
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@ -490,24 +490,6 @@ error_return:
return NULL;
}
static struct bdev_iscsi_conn_req *
bdev_iscsi_allocate_conn_req(struct iscsi_context *context, char *bdev_name, struct iscsi_url *url)
{
struct bdev_iscsi_conn_req *req;
req = calloc(1, sizeof(struct bdev_iscsi_conn_req));
if (!req) {
SPDK_ERRLOG("Cannot allocate pointer of struct bdev_iscsi_conn_req\n");
return NULL;
}
req->bdev_name = bdev_name;
req->url = url;
req->context = context;
return req;
}
static void
_bdev_iscsi_set_module_init(void)
{
@ -595,14 +577,70 @@ iscsi_bdev_conn_poll(void *arg)
return 0;
}
static int
create_iscsi_disk(const char *bdev_name, const char *url, const char *initiator_iqn)
{
struct bdev_iscsi_conn_req *req;
int rc;
if (!bdev_name || !url || !initiator_iqn || strlen(initiator_iqn) == 0) {
return -EINVAL;
}
req = calloc(1, sizeof(struct bdev_iscsi_conn_req));
if (!req) {
SPDK_ERRLOG("Cannot allocate pointer of struct bdev_iscsi_conn_req\n");
return -ENOMEM;
}
req->bdev_name = strdup(bdev_name);
req->context = iscsi_create_context(initiator_iqn);
if (!req->bdev_name || !req->context) {
SPDK_ERRLOG("Out of memory\n");
rc = -ENOMEM;
goto err;
}
req->url = iscsi_parse_full_url(req->context, url);
if (url == NULL) {
SPDK_ERRLOG("could not parse URL: %s\n", iscsi_get_error(req->context));
rc = -EINVAL;
goto err;
}
rc = iscsi_set_session_type(req->context, ISCSI_SESSION_NORMAL);
rc = rc ? rc : iscsi_set_header_digest(req->context, ISCSI_HEADER_DIGEST_NONE);
rc = rc ? rc : iscsi_full_connect_async(req->context, req->url->portal, req->url->lun,
iscsi_connect_cb, req);
if (rc < 0) {
SPDK_ERRLOG("Failed to connect provided URL=%s: %s\n", url, iscsi_get_error(req->context));
goto err;
}
TAILQ_INSERT_TAIL(&g_iscsi_conn_req, req, link);
return 0;
err:
/* iscsi_destroy_url() is not NULL-proof */
if (req->url) {
iscsi_destroy_url(req->url);
}
if (req->context) {
iscsi_destroy_context(req->context);
}
free(req->bdev_name);
free(req);
return rc;
}
static int
bdev_iscsi_initialize(void)
{
struct spdk_conf_section *sp;
struct iscsi_context *context;
struct iscsi_url *url;
char *val, *bdev_name, *initiator_iqn;
struct bdev_iscsi_conn_req *req;
const char *url, *bdev_name, *initiator_iqn;
int i, rc;
sp = spdk_conf_find_section(NULL, "iSCSI_Initiator");
@ -616,54 +654,30 @@ bdev_iscsi_initialize(void)
initiator_iqn = DEFAULT_INITIATOR_NAME;
}
i = 0;
while (true) {
val = spdk_conf_section_get_nmval(sp, "URL", i, 0);
if (val == NULL) {
break;
}
rc = 0;
for (i = 0; (url = spdk_conf_section_get_nmval(sp, "URL", i, 0)) != NULL; i++) {
bdev_name = spdk_conf_section_get_nmval(sp, "URL", i, 1);
if (bdev_name == NULL) {
SPDK_ERRLOG("no bdev name specified for URL %s\n", val);
SPDK_ERRLOG("no bdev name specified for URL %s\n", url);
rc = -EINVAL;
break;
}
context = iscsi_create_context(initiator_iqn);
if (context == NULL) {
SPDK_ERRLOG("could not create iscsi context\n");
rc = create_iscsi_disk(bdev_name, url, initiator_iqn);
if (rc) {
break;
}
url = iscsi_parse_full_url(context, val);
if (url == NULL) {
SPDK_ERRLOG("could not parse URL\n");
break;
}
req = bdev_iscsi_allocate_conn_req(context, bdev_name, url);
if (!req) {
_bdev_iscsi_set_module_init();
return -1;
}
iscsi_set_session_type(context, ISCSI_SESSION_NORMAL);
iscsi_set_header_digest(context, ISCSI_HEADER_DIGEST_NONE);
rc = iscsi_full_connect_async(context, url->portal, url->lun, iscsi_connect_cb, req);
if (rc < 0) {
free(req);
SPDK_ERRLOG("Failed to connect provided URL=%s, will ignore it\n", val);
continue;
}
TAILQ_INSERT_TAIL(&g_iscsi_conn_req, req, link);
i++;
}
if (!TAILQ_EMPTY(&g_iscsi_conn_req)) {
g_conn_poller = spdk_poller_register(iscsi_bdev_conn_poll, NULL, 0);
}
return 0;
if (rc) {
bdev_iscsi_set_module_init();
}
return rc;
}
SPDK_LOG_REGISTER_COMPONENT("iscsi_init", SPDK_LOG_ISCSI_INIT)