iscsi-target: Initial traditional TCP conversion to iscsit_transport
This patch performs the initial conversion of existing traditional iscsi
to use iscsit_transport API callers. This includes:
- iscsi-np cleanups for iscsit_transport_type
- Add iscsi-np transport calls w/ ->iscsit_setup_up() and ->iscsit_free_np()
- Convert login thread process context to use ->iscsit_accept_np() for
connections with pre-allocated struct iscsi_conn
- Convert existing socket accept code to iscsit_accept_np()
- Convert login RX/TX callers to use ->iscsit_get_login_rx() and
->iscsit_put_login_tx() to exchange request/response PDUs
- Convert existing socket login RX/TX calls into iscsit_get_login_rx()
and iscsit_put_login_tx()
- Change iscsit_close_connection() to invoke ->iscsit_free_conn() +
iscsit_put_transport() calls.
- Add iscsit_register_transport() + iscsit_unregister_transport() calls
to module init/exit
v4 changes:
- Add missing iscsit_put_transport() call in iscsi_target_setup_login_socket()
failure case
v2 changes:
- Update module init/exit to use register_transport() + unregister_transport()
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 7ce3505..4cf1e7f 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -24,6 +24,7 @@
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include <target/target_core_configfs.h>
+#include <target/iscsi/iscsi_transport.h>
#include "iscsi_target_core.h"
#include "iscsi_target_parameters.h"
@@ -1226,34 +1227,19 @@
*/
int iscsit_tx_login_rsp(struct iscsi_conn *conn, u8 status_class, u8 status_detail)
{
- u8 iscsi_hdr[ISCSI_HDR_LEN];
- int err;
- struct kvec iov;
struct iscsi_login_rsp *hdr;
+ struct iscsi_login *login = conn->conn_login;
+ login->login_failed = 1;
iscsit_collect_login_stats(conn, status_class, status_detail);
- memset(&iov, 0, sizeof(struct kvec));
- memset(&iscsi_hdr, 0x0, ISCSI_HDR_LEN);
-
- hdr = (struct iscsi_login_rsp *)&iscsi_hdr;
+ hdr = (struct iscsi_login_rsp *)&login->rsp[0];
hdr->opcode = ISCSI_OP_LOGIN_RSP;
hdr->status_class = status_class;
hdr->status_detail = status_detail;
hdr->itt = conn->login_itt;
- iov.iov_base = &iscsi_hdr;
- iov.iov_len = ISCSI_HDR_LEN;
-
- PRINT_BUFF(iscsi_hdr, ISCSI_HDR_LEN);
-
- err = tx_data(conn, &iov, 1, ISCSI_HDR_LEN);
- if (err != ISCSI_HDR_LEN) {
- pr_err("tx_data returned less than expected\n");
- return -1;
- }
-
- return 0;
+ return conn->conn_transport->iscsit_put_login_tx(conn, login, 0);
}
void iscsit_print_session_params(struct iscsi_session *sess)
@@ -1432,7 +1418,8 @@
strcpy(ls->last_intr_fail_name,
(intrname ? intrname->value : "Unknown"));
- ls->last_intr_fail_ip_family = conn->sock->sk->sk_family;
+ ls->last_intr_fail_ip_family = conn->login_family;
+
snprintf(ls->last_intr_fail_ip_addr, IPV6_ADDRESS_SPACE,
"%s", conn->login_ip);
ls->last_fail_time = get_jiffies_64();