diff options
Diffstat (limited to 'drivers/target/iscsi')
| -rw-r--r-- | drivers/target/iscsi/iscsi_target.c | 138 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target.h | 6 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_configfs.c | 34 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_device.c | 10 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_login.c | 123 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_login.h | 7 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_nego.c | 41 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_parameters.c | 5 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_stat.c | 2 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_tmr.c | 2 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_tpg.c | 38 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_tpg.h | 3 | ||||
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_util.c | 39 |
13 files changed, 268 insertions, 180 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 4e68b62193ed..342a07c58d89 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -269,14 +269,14 @@ int iscsit_deaccess_np(struct iscsi_np *np, struct iscsi_portal_group *tpg, } bool iscsit_check_np_match( - struct __kernel_sockaddr_storage *sockaddr, + struct sockaddr_storage *sockaddr, struct iscsi_np *np, int network_transport) { struct sockaddr_in *sock_in, *sock_in_e; struct sockaddr_in6 *sock_in6, *sock_in6_e; bool ip_match = false; - u16 port; + u16 port, port_e; if (sockaddr->ss_family == AF_INET6) { sock_in6 = (struct sockaddr_in6 *)sockaddr; @@ -288,6 +288,7 @@ bool iscsit_check_np_match( ip_match = true; port = ntohs(sock_in6->sin6_port); + port_e = ntohs(sock_in6_e->sin6_port); } else { sock_in = (struct sockaddr_in *)sockaddr; sock_in_e = (struct sockaddr_in *)&np->np_sockaddr; @@ -296,9 +297,10 @@ bool iscsit_check_np_match( ip_match = true; port = ntohs(sock_in->sin_port); + port_e = ntohs(sock_in_e->sin_port); } - if (ip_match && (np->np_port == port) && + if (ip_match && (port_e == port) && (np->np_network_transport == network_transport)) return true; @@ -309,7 +311,7 @@ bool iscsit_check_np_match( * Called with mutex np_lock held */ static struct iscsi_np *iscsit_get_np( - struct __kernel_sockaddr_storage *sockaddr, + struct sockaddr_storage *sockaddr, int network_transport) { struct iscsi_np *np; @@ -340,12 +342,9 @@ static struct iscsi_np *iscsit_get_np( } struct iscsi_np *iscsit_add_np( - struct __kernel_sockaddr_storage *sockaddr, - char *ip_str, + struct sockaddr_storage *sockaddr, int network_transport) { - struct sockaddr_in *sock_in; - struct sockaddr_in6 *sock_in6; struct iscsi_np *np; int ret; @@ -368,16 +367,6 @@ struct iscsi_np *iscsit_add_np( } np->np_flags |= NPF_IP_NETWORK; - if (sockaddr->ss_family == AF_INET6) { - sock_in6 = (struct sockaddr_in6 *)sockaddr; - snprintf(np->np_ip, IPV6_ADDRESS_SPACE, "%s", ip_str); - np->np_port = ntohs(sock_in6->sin6_port); - } else { - sock_in = (struct sockaddr_in *)sockaddr; - sprintf(np->np_ip, "%s", ip_str); - np->np_port = ntohs(sock_in->sin_port); - } - np->np_network_transport = network_transport; spin_lock_init(&np->np_thread_lock); init_completion(&np->np_restart_comp); @@ -411,8 +400,8 @@ struct iscsi_np *iscsit_add_np( list_add_tail(&np->np_list, &g_np_list); mutex_unlock(&np_lock); - pr_debug("CORE[0] - Added Network Portal: %s:%hu on %s\n", - np->np_ip, np->np_port, np->np_transport->name); + pr_debug("CORE[0] - Added Network Portal: %pISpc on %s\n", + &np->np_sockaddr, np->np_transport->name); return np; } @@ -481,8 +470,8 @@ int iscsit_del_np(struct iscsi_np *np) list_del(&np->np_list); mutex_unlock(&np_lock); - pr_debug("CORE[0] - Removed Network Portal: %s:%hu on %s\n", - np->np_ip, np->np_port, np->np_transport->name); + pr_debug("CORE[0] - Removed Network Portal: %pISpc on %s\n", + &np->np_sockaddr, np->np_transport->name); iscsit_put_transport(np->np_transport); kfree(np); @@ -968,9 +957,9 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, cmd->cmd_flags |= ICF_NON_IMMEDIATE_UNSOLICITED_DATA; conn->sess->init_task_tag = cmd->init_task_tag = hdr->itt; - if (hdr->flags & ISCSI_FLAG_CMD_READ) { + if (hdr->flags & ISCSI_FLAG_CMD_READ) cmd->targ_xfer_tag = session_get_next_ttt(conn->sess); - } else if (hdr->flags & ISCSI_FLAG_CMD_WRITE) + else cmd->targ_xfer_tag = 0xFFFFFFFF; cmd->cmd_sn = be32_to_cpu(hdr->cmdsn); cmd->exp_stat_sn = be32_to_cpu(hdr->exp_statsn); @@ -1209,7 +1198,6 @@ static u32 iscsit_do_crypto_hash_sg( u8 *pad_bytes) { u32 data_crc; - u32 i; struct scatterlist *sg; unsigned int page_off; @@ -1218,15 +1206,15 @@ static u32 iscsit_do_crypto_hash_sg( sg = cmd->first_data_sg; page_off = cmd->first_data_sg_off; - i = 0; while (data_length) { - u32 cur_len = min_t(u32, data_length, (sg[i].length - page_off)); + u32 cur_len = min_t(u32, data_length, (sg->length - page_off)); - crypto_hash_update(hash, &sg[i], cur_len); + crypto_hash_update(hash, sg, cur_len); data_length -= cur_len; page_off = 0; - i++; + /* iscsit_map_iovec has already checked for invalid sg pointers */ + sg = sg_next(sg); } if (padding) { @@ -2556,7 +2544,7 @@ static int iscsit_send_conn_drop_async_message( cmd->stat_sn = conn->stat_sn++; hdr->statsn = cpu_to_be32(cmd->stat_sn); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); hdr->async_event = ISCSI_ASYNC_MSG_DROPPING_CONNECTION; hdr->param1 = cpu_to_be16(cmd->logout_cid); hdr->param2 = cpu_to_be16(conn->sess->sess_ops->DefaultTime2Wait); @@ -2628,7 +2616,7 @@ iscsit_build_datain_pdu(struct iscsi_cmd *cmd, struct iscsi_conn *conn, hdr->statsn = cpu_to_be32(0xFFFFFFFF); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); hdr->datasn = cpu_to_be32(datain->data_sn); hdr->offset = cpu_to_be32(datain->offset); @@ -2839,7 +2827,7 @@ iscsit_build_logout_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built Logout Response ITT: 0x%08x StatSN:" " 0x%08x Response: 0x%02x CID: %hu on CID: %hu\n", @@ -2902,7 +2890,7 @@ iscsit_build_nopin_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built NOPIN %s Response ITT: 0x%08x, TTT: 0x%08x," " StatSN: 0x%08x, Length %u\n", (nopout_response) ? @@ -3049,7 +3037,7 @@ static int iscsit_send_r2t( hdr->ttt = cpu_to_be32(r2t->targ_xfer_tag); hdr->statsn = cpu_to_be32(conn->stat_sn); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); hdr->r2tsn = cpu_to_be32(r2t->r2t_sn); hdr->data_offset = cpu_to_be32(r2t->offset); hdr->data_length = cpu_to_be32(r2t->xfer_len); @@ -3202,7 +3190,7 @@ void iscsit_build_rsp_pdu(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built SCSI Response, ITT: 0x%08x, StatSN: 0x%08x," " Response: 0x%02x, SAM Status: 0x%02x, CID: %hu\n", @@ -3321,7 +3309,7 @@ iscsit_build_task_mgt_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, iscsit_increment_maxcmdsn(cmd, conn->sess); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built Task Management Response ITT: 0x%08x," " StatSN: 0x%08x, Response: 0x%02x, CID: %hu\n", @@ -3399,6 +3387,7 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, int target_name_printed; unsigned char buf[ISCSI_IQN_LEN+12]; /* iqn + "TargetName=" + \0 */ unsigned char *text_in = cmd->text_in_ptr, *text_ptr = NULL; + bool active; buffer_len = min(conn->conn_ops->MaxRecvDataSegmentLength, SENDTARGETS_BUF_LIMIT); @@ -3452,19 +3441,18 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, } spin_lock(&tpg->tpg_state_lock); - if ((tpg->tpg_state == TPG_STATE_FREE) || - (tpg->tpg_state == TPG_STATE_INACTIVE)) { - spin_unlock(&tpg->tpg_state_lock); - continue; - } + active = (tpg->tpg_state == TPG_STATE_ACTIVE); spin_unlock(&tpg->tpg_state_lock); + if (!active && tpg->tpg_attrib.tpg_enabled_sendtargets) + continue; + spin_lock(&tpg->tpg_np_lock); list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) { struct iscsi_np *np = tpg_np->tpg_np; bool inaddr_any = iscsit_check_inaddr_any(np); - char *fmt_str; + struct sockaddr_storage *sockaddr; if (np->np_network_transport != network_transport) continue; @@ -3492,15 +3480,15 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, } } - if (np->np_sockaddr.ss_family == AF_INET6) - fmt_str = "TargetAddress=[%s]:%hu,%hu"; + if (inaddr_any) + sockaddr = &conn->local_sockaddr; else - fmt_str = "TargetAddress=%s:%hu,%hu"; + sockaddr = &np->np_sockaddr; - len = sprintf(buf, fmt_str, - inaddr_any ? conn->local_ip : np->np_ip, - np->np_port, - tpg->tpgt); + len = sprintf(buf, "TargetAddress=" + "%pISpc,%hu", + sockaddr, + tpg->tpgt); len += 1; if ((len + payload_len) > buffer_len) { @@ -3576,7 +3564,7 @@ iscsit_build_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, */ cmd->maxcmdsn_inc = 0; hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Built Text Response: ITT: 0x%08x, TTT: 0x%08x, StatSN: 0x%08x," " Length: %u, CID: %hu F: %d C: %d\n", cmd->init_task_tag, @@ -3654,7 +3642,7 @@ iscsit_build_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn, cmd->stat_sn = conn->stat_sn++; hdr->statsn = cpu_to_be32(cmd->stat_sn); hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - hdr->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + hdr->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); } EXPORT_SYMBOL(iscsit_build_reject); @@ -3998,7 +3986,13 @@ get_immediate: } transport_err: - iscsit_take_action_for_connection_exit(conn); + /* + * Avoid the normal connection failure code-path if this connection + * is still within LOGIN mode, and iscsi_np process context is + * responsible for cleaning up the early connection failure. + */ + if (conn->conn_state != TARG_CONN_STATE_IN_LOGIN) + iscsit_take_action_for_connection_exit(conn); out: return 0; } @@ -4082,7 +4076,7 @@ reject: int iscsi_target_rx_thread(void *arg) { - int ret; + int ret, rc; u8 buffer[ISCSI_HDR_LEN], opcode; u32 checksum = 0, digest = 0; struct iscsi_conn *conn = arg; @@ -4092,10 +4086,16 @@ int iscsi_target_rx_thread(void *arg) * connection recovery / failure event can be triggered externally. */ allow_signal(SIGINT); + /* + * Wait for iscsi_post_login_handler() to complete before allowing + * incoming iscsi/tcp socket I/O, and/or failing the connection. + */ + rc = wait_for_completion_interruptible(&conn->rx_login_comp); + if (rc < 0) + return 0; if (conn->conn_transport->transport_type == ISCSI_INFINIBAND) { struct completion comp; - int rc; init_completion(&comp); rc = wait_for_completion_interruptible(&comp); @@ -4532,7 +4532,18 @@ static void iscsit_logout_post_handler_closesession( struct iscsi_conn *conn) { struct iscsi_session *sess = conn->sess; - int sleep = cmpxchg(&conn->tx_thread_active, true, false); + int sleep = 1; + /* + * Traditional iscsi/tcp will invoke this logic from TX thread + * context during session logout, so clear tx_thread_active and + * sleep if iscsit_close_connection() has not already occured. + * + * Since iser-target invokes this logic from it's own workqueue, + * always sleep waiting for RX/TX thread shutdown to complete + * within iscsit_close_connection(). + */ + if (conn->conn_transport->transport_type == ISCSI_TCP) + sleep = cmpxchg(&conn->tx_thread_active, true, false); atomic_set(&conn->conn_logout_remove, 0); complete(&conn->conn_logout_comp); @@ -4546,7 +4557,10 @@ static void iscsit_logout_post_handler_closesession( static void iscsit_logout_post_handler_samecid( struct iscsi_conn *conn) { - int sleep = cmpxchg(&conn->tx_thread_active, true, false); + int sleep = 1; + + if (conn->conn_transport->transport_type == ISCSI_TCP) + sleep = cmpxchg(&conn->tx_thread_active, true, false); atomic_set(&conn->conn_logout_remove, 0); complete(&conn->conn_logout_comp); @@ -4765,6 +4779,7 @@ int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *tpg, int force) struct iscsi_session *sess; struct se_portal_group *se_tpg = &tpg->tpg_se_tpg; struct se_session *se_sess, *se_sess_tmp; + LIST_HEAD(free_list); int session_count = 0; spin_lock_bh(&se_tpg->session_lock); @@ -4786,14 +4801,17 @@ int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *tpg, int force) } atomic_set(&sess->session_reinstatement, 1); spin_unlock(&sess->conn_lock); - spin_unlock_bh(&se_tpg->session_lock); - iscsit_free_session(sess); - spin_lock_bh(&se_tpg->session_lock); + list_move_tail(&se_sess->sess_list, &free_list); + } + spin_unlock_bh(&se_tpg->session_lock); + list_for_each_entry_safe(se_sess, se_sess_tmp, &free_list, sess_list) { + sess = (struct iscsi_session *)se_sess->fabric_sess_ptr; + + iscsit_free_session(sess); session_count++; } - spin_unlock_bh(&se_tpg->session_lock); pr_debug("Released %d iSCSI Session(s) from Target Portal" " Group: %hu\n", session_count, tpg->tpgt); diff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h index 7d0f9c00d9c2..4cf2c0f2ba2f 100644 --- a/drivers/target/iscsi/iscsi_target.h +++ b/drivers/target/iscsi/iscsi_target.h @@ -10,10 +10,10 @@ extern int iscsit_access_np(struct iscsi_np *, struct iscsi_portal_group *); extern void iscsit_login_kref_put(struct kref *); extern int iscsit_deaccess_np(struct iscsi_np *, struct iscsi_portal_group *, struct iscsi_tpg_np *); -extern bool iscsit_check_np_match(struct __kernel_sockaddr_storage *, +extern bool iscsit_check_np_match(struct sockaddr_storage *, struct iscsi_np *, int); -extern struct iscsi_np *iscsit_add_np(struct __kernel_sockaddr_storage *, - char *, int); +extern struct iscsi_np *iscsit_add_np(struct sockaddr_storage *, + int); extern int iscsit_reset_np_thread(struct iscsi_np *, struct iscsi_tpg_np *, struct iscsi_portal_group *, bool); extern int iscsit_del_np(struct iscsi_np *); diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index c1898c84b3d2..c7461d770d3a 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -99,7 +99,7 @@ static ssize_t lio_target_np_store_sctp( * Use existing np->np_sockaddr for SCTP network portal reference */ tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, - np->np_ip, tpg_np, ISCSI_SCTP_TCP); + tpg_np, ISCSI_SCTP_TCP); if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) goto out; } else { @@ -177,7 +177,7 @@ static ssize_t lio_target_np_store_iser( } tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, - np->np_ip, tpg_np, ISCSI_INFINIBAND); + tpg_np, ISCSI_INFINIBAND); if (IS_ERR(tpg_np_iser)) { rc = PTR_ERR(tpg_np_iser); goto out; @@ -220,7 +220,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( struct iscsi_portal_group *tpg; struct iscsi_tpg_np *tpg_np; char *str, *str2, *ip_str, *port_str; - struct __kernel_sockaddr_storage sockaddr; + struct sockaddr_storage sockaddr; struct sockaddr_in *sock_in; struct sockaddr_in6 *sock_in6; unsigned long port; @@ -235,7 +235,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( memset(buf, 0, MAX_PORTAL_LEN + 1); snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); - memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); + memset(&sockaddr, 0, sizeof(struct sockaddr_storage)); str = strstr(buf, "["); if (str) { @@ -248,8 +248,8 @@ static struct se_tpg_np *lio_target_call_addnptotpg( return ERR_PTR(-EINVAL); } str++; /* Skip over leading "[" */ - *str2 = '\0'; /* Terminate the IPv6 address */ - str2++; /* Skip over the "]" */ + *str2 = '\0'; /* Terminate the unbracketed IPv6 address */ + str2++; /* Skip over the \0 */ port_str = strstr(str2, ":"); if (!port_str) { pr_err("Unable to locate \":port\"" @@ -267,7 +267,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( sock_in6 = (struct sockaddr_in6 *)&sockaddr; sock_in6->sin6_family = AF_INET6; sock_in6->sin6_port = htons((unsigned short)port); - ret = in6_pton(str, IPV6_ADDRESS_SPACE, + ret = in6_pton(str, -1, (void *)&sock_in6->sin6_addr.in6_u, -1, &end); if (ret <= 0) { pr_err("in6_pton returned: %d\n", ret); @@ -316,7 +316,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ * */ - tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, + tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, NULL, ISCSI_TCP); if (IS_ERR(tpg_np)) { iscsit_put_tpg(tpg); @@ -344,8 +344,8 @@ static void lio_target_call_delnpfromtpg( se_tpg = &tpg->tpg_se_tpg; pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" - " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), - tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); + " PORTAL: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), + tpg->tpgt, &tpg_np->tpg_np->np_sockaddr); ret = iscsit_tpg_del_network_portal(tpg, tpg_np); if (ret < 0) @@ -656,6 +656,7 @@ static ssize_t lio_target_nacl_show_info( struct iscsi_conn *conn; struct se_session *se_sess; ssize_t rb = 0; + u32 max_cmd_sn; spin_lock_bh(&se_nacl->nacl_sess_lock); se_sess = se_nacl->nacl_sess; @@ -703,11 +704,12 @@ static ssize_t lio_target_nacl_show_info( " Values]-----------------------\n"); rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" " : MaxCmdSN : ITT : TTT\n"); + max_cmd_sn = (u32) atomic_read(&sess->max_cmd_sn); rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" " 0x%08x 0x%08x\n", sess->cmdsn_window, - (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, - sess->exp_cmd_sn, sess->max_cmd_sn, + (max_cmd_sn - sess->exp_cmd_sn) + 1, + sess->exp_cmd_sn, max_cmd_sn, sess->init_task_tag, sess->targ_xfer_tag); rb += sprintf(page+rb, "----------------------[iSCSI" " Connections]-------------------------\n"); @@ -751,7 +753,7 @@ static ssize_t lio_target_nacl_show_info( break; } - rb += sprintf(page+rb, " Address %s %s", conn->login_ip, + rb += sprintf(page+rb, " Address %pISc %s", &conn->login_sockaddr, (conn->network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); rb += sprintf(page+rb, " StatSN: 0x%08x\n", @@ -1010,6 +1012,11 @@ TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR); */ DEF_TPG_ATTRIB(fabric_prot_type); TPG_ATTR(fabric_prot_type, S_IRUGO | S_IWUSR); +/* + * Define iscsi_tpg_attrib_s_tpg_enabled_sendtargets + */ +DEF_TPG_ATTRIB(tpg_enabled_sendtargets); +TPG_ATTR(tpg_enabled_sendtargets, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_authentication.attr, @@ -1024,6 +1031,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_default_erl.attr, &iscsi_tpg_attrib_t10_pi.attr, &iscsi_tpg_attrib_fabric_prot_type.attr, + &iscsi_tpg_attrib_tpg_enabled_sendtargets.attr, NULL, }; diff --git a/drivers/target/iscsi/iscsi_target_device.c b/drivers/target/iscsi/iscsi_target_device.c index 5fabcd3d623f..0382fa24b53b 100644 --- a/drivers/target/iscsi/iscsi_target_device.c +++ b/drivers/target/iscsi/iscsi_target_device.c @@ -47,19 +47,19 @@ void iscsit_determine_maxcmdsn(struct iscsi_session *sess) * core_set_queue_depth_for_node(). */ sess->cmdsn_window = se_nacl->queue_depth; - sess->max_cmd_sn = (sess->max_cmd_sn + se_nacl->queue_depth) - 1; + atomic_add(se_nacl->queue_depth - 1, &sess->max_cmd_sn); } void iscsit_increment_maxcmdsn(struct iscsi_cmd *cmd, struct iscsi_session *sess) { + u32 max_cmd_sn; + if (cmd->immediate_cmd || cmd->maxcmdsn_inc) return; cmd->maxcmdsn_inc = 1; - mutex_lock(&sess->cmdsn_mutex); - sess->max_cmd_sn += 1; - pr_debug("Updated MaxCmdSN to 0x%08x\n", sess->max_cmd_sn); - mutex_unlock(&sess->cmdsn_mutex); + max_cmd_sn = atomic_inc_return(&sess->max_cmd_sn); + pr_debug("Updated MaxCmdSN to 0x%08x\n", max_cmd_sn); } EXPORT_SYMBOL(iscsit_increment_maxcmdsn); diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 3d0fe4ff5590..96e78c823d13 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -82,6 +82,7 @@ static struct iscsi_login *iscsi_login_init_conn(struct iscsi_conn *conn) init_completion(&conn->conn_logout_comp); init_completion(&conn->rx_half_close_comp); init_completion(&conn->tx_half_close_comp); + init_completion(&conn->rx_login_comp); spin_lock_init(&conn->cmd_lock); spin_lock_init(&conn->conn_usage_lock); spin_lock_init(&conn->immed_queue_lock); @@ -330,7 +331,7 @@ static int iscsi_login_zero_tsih_s1( * The FFP CmdSN window values will be allocated from the TPG's * Initiator Node's ACL once the login has been successfully completed. */ - sess->max_cmd_sn = be32_to_cpu(pdu->cmdsn); + atomic_set(&sess->max_cmd_sn, be32_to_cpu(pdu->cmdsn)); sess->sess_ops = kzalloc(sizeof(struct iscsi_sess_ops), GFP_KERNEL); if (!sess->sess_ops) { @@ -644,7 +645,7 @@ static void iscsi_post_login_start_timers(struct iscsi_conn *conn) iscsit_start_nopin_timer(conn); } -static int iscsit_start_kthreads(struct iscsi_conn *conn) +int iscsit_start_kthreads(struct iscsi_conn *conn) { int ret = 0; @@ -679,6 +680,7 @@ static int iscsit_start_kthreads(struct iscsi_conn *conn) return 0; out_tx: + send_sig(SIGINT, conn->tx_thread, 1); kthread_stop(conn->tx_thread); conn->tx_thread_active = false; out_bitmap: @@ -689,7 +691,7 @@ out_bitmap: return ret; } -int iscsi_post_login_handler( +void iscsi_post_login_handler( struct iscsi_np *np, struct iscsi_conn *conn, u8 zero_tsih) @@ -699,7 +701,6 @@ int iscsi_post_login_handler( struct se_session *se_sess = sess->se_sess; struct iscsi_portal_group *tpg = sess->tpg; struct se_portal_group *se_tpg = &tpg->tpg_se_tpg; - int rc; iscsit_inc_conn_usage_count(conn); @@ -728,9 +729,9 @@ int iscsi_post_login_handler( stop_timer = 1; } - pr_debug("iSCSI Login successful on CID: %hu from %s to" - " %s:%hu,%hu\n", conn->cid, conn->login_ip, - conn->local_ip, conn->local_port, tpg->tpgt); + pr_debug("iSCSI Login successful on CID: %hu from %pISpc to" + " %pISpc,%hu\n", conn->cid, &conn->login_sockaddr, + &conn->local_sockaddr, tpg->tpgt); list_add_tail(&conn->conn_list, &sess->sess_conn_list); atomic_inc(&sess->nconn); @@ -739,10 +740,6 @@ int iscsi_post_login_handler( sess->sess_ops->InitiatorName); spin_unlock_bh(&sess->conn_lock); - rc = iscsit_start_kthreads(conn); - if (rc) - return rc; - iscsi_post_login_start_timers(conn); /* * Determine CPU mask to ensure connection's RX and TX kthreads @@ -751,15 +748,20 @@ int iscsi_post_login_handler( iscsit_thread_get_cpumask(conn); conn->conn_rx_reset_cpumask = 1; conn->conn_tx_reset_cpumask = 1; - + /* + * Wakeup the sleeping iscsi_target_rx_thread() now that + * iscsi_conn is in TARG_CONN_STATE_LOGGED_IN state. + */ + complete(&conn->rx_login_comp); iscsit_dec_conn_usage_count(conn); + if (stop_timer) { spin_lock_bh(&se_tpg->session_lock); iscsit_stop_time2retain_timer(sess); spin_unlock_bh(&se_tpg->session_lock); } iscsit_dec_session_usage_count(sess); - return 0; + return; } iscsi_set_session_parameters(sess->sess_ops, conn->param_list, 1); @@ -774,8 +776,8 @@ int iscsi_post_login_handler( pr_debug("Moving to TARG_SESS_STATE_LOGGED_IN.\n"); sess->session_state = TARG_SESS_STATE_LOGGED_IN; - pr_debug("iSCSI Login successful on CID: %hu from %s to %s:%hu,%hu\n", - conn->cid, conn->login_ip, conn->local_ip, conn->local_port, + pr_debug("iSCSI Login successful on CID: %hu from %pISpc to %pISpc,%hu\n", + conn->cid, &conn->login_sockaddr, &conn->local_sockaddr, tpg->tpgt); spin_lock_bh(&sess->conn_lock); @@ -800,10 +802,6 @@ int iscsi_post_login_handler( " iSCSI Target Portal Group: %hu\n", tpg->nsessions, tpg->tpgt); spin_unlock_bh(&se_tpg->session_lock); - rc = iscsit_start_kthreads(conn); - if (rc) - return rc; - iscsi_post_login_start_timers(conn); /* * Determine CPU mask to ensure connection's RX and TX kthreads @@ -812,10 +810,12 @@ int iscsi_post_login_handler( iscsit_thread_get_cpumask(conn); conn->conn_rx_reset_cpumask = 1; conn->conn_tx_reset_cpumask = 1; - + /* + * Wakeup the sleeping iscsi_target_rx_thread() now that + * iscsi_conn is in TARG_CONN_STATE_LOGGED_IN state. + */ + complete(&conn->rx_login_comp); iscsit_dec_conn_usage_count(conn); - - return 0; } static void iscsi_handle_login_thread_timeout(unsigned long data) @@ -823,8 +823,8 @@ static void iscsi_handle_login_thread_timeout(unsigned long data) struct iscsi_np *np = (struct iscsi_np *) data; spin_lock_bh(&np->np_thread_lock); - pr_err("iSCSI Login timeout on Network Portal %s:%hu\n", - np->np_ip, np->np_port); + pr_err("iSCSI Login timeout on Network Portal %pISpc\n", + &np->np_sockaddr); if (np->np_login_timer_flags & ISCSI_TF_STOP) { spin_unlock_bh(&np->np_thread_lock); @@ -877,7 +877,7 @@ static void iscsi_stop_login_thread_timer(struct iscsi_np *np) int iscsit_setup_np( struct iscsi_np *np, - struct __kernel_sockaddr_storage *sockaddr) + struct sockaddr_storage *sockaddr) { struct socket *sock = NULL; int backlog = ISCSIT_TCP_BACKLOG, ret, opt = 0, len; @@ -916,7 +916,7 @@ int iscsit_setup_np( * in iscsi_target_configfs.c code.. */ memcpy(&np->np_sockaddr, sockaddr, - sizeof(struct __kernel_sockaddr_storage)); + sizeof(struct sockaddr_storage)); if (sockaddr->ss_family == AF_INET6) len = sizeof(struct sockaddr_in6); @@ -975,7 +975,7 @@ fail: int iscsi_target_setup_login_socket( struct iscsi_np *np, - struct __kernel_sockaddr_storage *sockaddr) + struct sockaddr_storage *sockaddr) { struct iscsit_transport *t; int rc; @@ -1015,44 +1015,42 @@ int iscsit_accept_np(struct iscsi_np *np, struct iscsi_conn *conn) rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in6, &err, 1); if (!rc) { - if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) - snprintf(conn->login_ip, sizeof(conn->login_ip), "[%pI6c]", - &sock_in6.sin6_addr.in6_u); - else - snprintf(conn->login_ip, sizeof(conn->login_ip), "%pI4", - &sock_in6.sin6_addr.s6_addr32[3]); - conn->login_port = ntohs(sock_in6.sin6_port); + if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) { + memcpy(&conn->login_sockaddr, &sock_in6, sizeof(sock_in6)); + } else { + /* Pretend to be an ipv4 socket */ + sock_in.sin_family = AF_INET; + sock_in.sin_port = sock_in6.sin6_port; + memcpy(&sock_in.sin_addr, &sock_in6.sin6_addr.s6_addr32[3], 4); + memcpy(&conn->login_sockaddr, &sock_in, sizeof(sock_in)); + } } rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in6, &err, 0); if (!rc) { - if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) - snprintf(conn->local_ip, sizeof(conn->local_ip), "[%pI6c]", - &sock_in6.sin6_addr.in6_u); - else - snprintf(conn->local_ip, sizeof(conn->local_ip), "%pI4", - &sock_in6.sin6_addr.s6_addr32[3]); - conn->local_port = ntohs(sock_in6.sin6_port); + if (!ipv6_addr_v4mapped(&sock_in6.sin6_addr)) { + memcpy(&conn->local_sockaddr, &sock_in6, sizeof(sock_in6)); + } else { + /* Pretend to be an ipv4 socket */ + sock_in.sin_family = AF_INET; + sock_in.sin_port = sock_in6.sin6_port; + memcpy(&sock_in.sin_addr, &sock_in6.sin6_addr.s6_addr32[3], 4); + memcpy(&conn->local_sockaddr, &sock_in, sizeof(sock_in)); + } } } else { memset(&sock_in, 0, sizeof(struct sockaddr_in)); rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in, &err, 1); - if (!rc) { - sprintf(conn->login_ip, "%pI4", - &sock_in.sin_addr.s_addr); - conn->login_port = ntohs(sock_in.sin_port); - } + if (!rc) + memcpy(&conn->login_sockaddr, &sock_in, sizeof(sock_in)); rc = conn->sock->ops->getname(conn->sock, (struct sockaddr *)&sock_in, &err, 0); - if (!rc) { - sprintf(conn->local_ip, "%pI4", - &sock_in.sin_addr.s_addr); - conn->local_port = ntohs(sock_in.sin_port); - } + if (!rc) + memcpy(&conn->local_sockaddr, &sock_in, sizeof(sock_in)); } return 0; @@ -1302,8 +1300,8 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) spin_lock_bh(&np->np_thread_lock); if (np->np_thread_state != ISCSI_NP_THREAD_ACTIVE) { spin_unlock_bh(&np->np_thread_lock); - pr_err("iSCSI Network Portal on %s:%hu currently not" - " active.\n", np->np_ip, np->np_port); + pr_err("iSCSI Network Portal on %pISpc currently not" + " active.\n", &np->np_sockaddr); iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, ISCSI_LOGIN_STATUS_SVC_UNAVAILABLE); goto new_sess_out; @@ -1312,9 +1310,9 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) conn->network_transport = np->np_network_transport; - pr_debug("Received iSCSI login request from %s on %s Network" - " Portal %s:%hu\n", conn->login_ip, np->np_transport->name, - conn->local_ip, conn->local_port); + pr_debug("Received iSCSI login request from %pISpc on %s Network" + " Portal %pISpc\n", &conn->login_sockaddr, np->np_transport->name, + &conn->local_sockaddr); pr_debug("Moving to TARG_CONN_STATE_IN_LOGIN.\n"); conn->conn_state = TARG_CONN_STATE_IN_LOGIN; @@ -1380,23 +1378,12 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) if (ret < 0) goto new_sess_out; - if (!conn->sess) { - pr_err("struct iscsi_conn session pointer is NULL!\n"); - goto new_sess_out; - } - iscsi_stop_login_thread_timer(np); - if (signal_pending(current)) - goto new_sess_out; - if (ret == 1) { tpg_np = conn->tpg_np; - ret = iscsi_post_login_handler(np, conn, zero_tsih); - if (ret < 0) - goto new_sess_out; - + iscsi_post_login_handler(np, conn, zero_tsih); iscsit_deaccess_np(np, tpg, tpg_np); } diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h index 1c7358081533..b597aa2c61a1 100644 --- a/drivers/target/iscsi/iscsi_target_login.h +++ b/drivers/target/iscsi/iscsi_target_login.h @@ -5,14 +5,15 @@ extern int iscsi_login_setup_crypto(struct iscsi_conn *); extern int iscsi_check_for_session_reinstatement(struct iscsi_conn *); extern int iscsi_login_post_auth_non_zero_tsih(struct iscsi_conn *, u16, u32); extern int iscsit_setup_np(struct iscsi_np *, - struct __kernel_sockaddr_storage *); + struct sockaddr_storage *); extern int iscsi_target_setup_login_socket(struct iscsi_np *, - struct __kernel_sockaddr_storage *); + struct sockaddr_storage *); extern int iscsit_accept_np(struct iscsi_np *, struct iscsi_conn *); extern int iscsit_get_login_rx(struct iscsi_conn *, struct iscsi_login *); extern int iscsit_put_login_tx(struct iscsi_conn *, struct iscsi_login *, u32); extern void iscsit_free_conn(struct iscsi_np *, struct iscsi_conn *); -extern int iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8); +extern int iscsit_start_kthreads(struct iscsi_conn *); +extern void iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8); extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *, bool, bool); extern int iscsi_target_login_thread(void *); diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index 8c02fa34716f..5c964c09c89f 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -17,6 +17,7 @@ ******************************************************************************/ #include <linux/ctype.h> +#include <linux/kthread.h> #include <scsi/iscsi_proto.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> @@ -340,7 +341,6 @@ static int iscsi_target_check_first_request( static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_login *login) { u32 padding = 0; - struct iscsi_session *sess = conn->sess; struct iscsi_login_rsp *login_rsp; login_rsp = (struct iscsi_login_rsp *) login->rsp; @@ -352,7 +352,7 @@ static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_log login_rsp->itt = login->init_task_tag; login_rsp->statsn = cpu_to_be32(conn->stat_sn++); login_rsp->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn); - login_rsp->max_cmdsn = cpu_to_be32(conn->sess->max_cmd_sn); + login_rsp->max_cmdsn = cpu_to_be32((u32) atomic_read(&conn->sess->max_cmd_sn)); pr_debug("Sending Login Response, Flags: 0x%02x, ITT: 0x%08x," " ExpCmdSN; 0x%08x, MaxCmdSN: 0x%08x, StatSN: 0x%08x, Length:" @@ -361,18 +361,45 @@ static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_log ntohl(login_rsp->statsn), login->rsp_length); padding = ((-login->rsp_length) & 3); + /* + * Before sending the last login response containing the transition + * bit for full-feature-phase, go ahead and start up TX/RX threads + * now to avoid potential resource allocation failures after the + * final login response has been sent. + */ + if (login->login_complete) { + int rc = iscsit_start_kthreads(conn); + if (rc) { + iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, + ISCSI_LOGIN_STATUS_NO_RESOURCES); + return -1; + } + } if (conn->conn_transport->iscsit_put_login_tx(conn, login, login->rsp_length + padding) < 0) - return -1; + goto err; login->rsp_length = 0; - mutex_lock(&sess->cmdsn_mutex); - login_rsp->exp_cmdsn = cpu_to_be32(sess->exp_cmd_sn); - login_rsp->max_cmdsn = cpu_to_be32(sess->max_cmd_sn); - mutex_unlock(&sess->cmdsn_mutex); return 0; + +err: + if (login->login_complete) { + if (conn->rx_thread && conn->rx_thread_active) { + send_sig(SIGINT, conn->rx_thread, 1); + kthread_stop(conn->rx_thread); + } + if (conn->tx_thread && conn->tx_thread_active) { + send_sig(SIGINT, conn->tx_thread, 1); + kthread_stop(conn->tx_thread); + } + spin_lock(&iscsit_global->ts_bitmap_lock); + bitmap_release_region(iscsit_global->ts_bitmap, conn->bitmap_id, + get_order(1)); + spin_unlock(&iscsit_global->ts_bitmap_lock); + } + return -1; } static void iscsi_target_sk_data_ready(struct sock *sk) diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c index e8a52f7d6204..51d1734d5390 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.c +++ b/drivers/target/iscsi/iscsi_target_parameters.c @@ -407,6 +407,7 @@ int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr) TYPERANGE_UTF8, USE_INITIAL_ONLY); if (!param) goto out; + /* * Extra parameters for ISER from RFC-5046 */ @@ -496,9 +497,9 @@ int iscsi_set_keys_to_negotiate( } else if (!strcmp(param->name, SESSIONTYPE)) { SET_PSTATE_NEGOTIATE(param); } else if (!strcmp(param->name, IFMARKER)) { - SET_PSTATE_NEGOTIATE(param); + SET_PSTATE_REJECT(param); } else if (!strcmp(param->name, OFMARKER)) { - SET_PSTATE_NEGOTIATE(param); + SET_PSTATE_REJECT(param); } else if (!strcmp(param->name, IFMARKINT)) { SET_PSTATE_REJECT(param); } else if (!strcmp(param->name, OFMARKINT)) { diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c index 5e1349a3b143..9dd94ff0b62c 100644 --- a/drivers/target/iscsi/iscsi_target_stat.c +++ b/drivers/target/iscsi/iscsi_target_stat.c @@ -430,7 +430,7 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr( int ret; spin_lock(&lstat->lock); - ret = snprintf(page, PAGE_SIZE, "%s\n", lstat->last_intr_fail_ip_addr); + ret = snprintf(page, PAGE_SIZE, "%pISc\n", &lstat->last_intr_fail_sockaddr); spin_unlock(&lstat->lock); return ret; diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c index cf59c397007b..11320df939f7 100644 --- a/drivers/target/iscsi/iscsi_target_tmr.c +++ b/drivers/target/iscsi/iscsi_target_tmr.c @@ -50,7 +50,7 @@ u8 iscsit_tmr_abort_task( pr_err("Unable to locate RefTaskTag: 0x%08x on CID:" " %hu.\n", hdr->rtt, conn->cid); return (iscsi_sna_gte(be32_to_cpu(hdr->refcmdsn), conn->sess->exp_cmd_sn) && - iscsi_sna_lte(be32_to_cpu(hdr->refcmdsn), conn->sess->max_cmd_sn)) ? + iscsi_sna_lte(be32_to_cpu(hdr->refcmdsn), (u32) atomic_read(&conn->sess->max_cmd_sn))) ? ISCSI_TMF_RSP_COMPLETE : ISCSI_TMF_RSP_NO_TASK; } if (ref_cmd->cmd_sn != be32_to_cpu(hdr->refcmdsn)) { diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 968068ffcb1c..23c95cd14167 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -226,6 +226,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg) a->default_erl = TA_DEFAULT_ERL; a->t10_pi = TA_DEFAULT_T10_PI; a->fabric_prot_type = TA_DEFAULT_FABRIC_PROT_TYPE; + a->tpg_enabled_sendtargets = TA_DEFAULT_TPG_ENABLED_SENDTARGETS; } int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg) @@ -430,7 +431,7 @@ struct iscsi_tpg_np *iscsit_tpg_locate_child_np( static bool iscsit_tpg_check_network_portal( struct iscsi_tiqn *tiqn, - struct __kernel_sockaddr_storage *sockaddr, + struct sockaddr_storage *sockaddr, int network_transport) { struct iscsi_portal_group *tpg; @@ -459,8 +460,7 @@ static bool iscsit_tpg_check_network_portal( struct iscsi_tpg_np *iscsit_tpg_add_network_portal( struct iscsi_portal_group *tpg, - struct __kernel_sockaddr_storage *sockaddr, - char *ip_str, + struct sockaddr_storage *sockaddr, struct iscsi_tpg_np *tpg_np_parent, int network_transport) { @@ -470,8 +470,8 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal( if (!tpg_np_parent) { if (iscsit_tpg_check_network_portal(tpg->tpg_tiqn, sockaddr, network_transport)) { - pr_err("Network Portal: %s already exists on a" - " different TPG on %s\n", ip_str, + pr_err("Network Portal: %pISc already exists on a" + " different TPG on %s\n", sockaddr, tpg->tpg_tiqn->tiqn); return ERR_PTR(-EEXIST); } @@ -484,7 +484,7 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal( return ERR_PTR(-ENOMEM); } - np = iscsit_add_np(sockaddr, ip_str, network_transport); + np = iscsit_add_np(sockaddr, network_transport); if (IS_ERR(np)) { kfree(tpg_np); return ERR_CAST(np); @@ -514,8 +514,8 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal( spin_unlock(&tpg_np_parent->tpg_np_parent_lock); } - pr_debug("CORE[%s] - Added Network Portal: %s:%hu,%hu on %s\n", - tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, + pr_debug("CORE[%s] - Added Network Portal: %pISpc,%hu on %s\n", + tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt, np->np_transport->name); return tpg_np; @@ -528,8 +528,8 @@ static int iscsit_tpg_release_np( { iscsit_clear_tpg_np_login_thread(tpg_np, tpg, true); - pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n", - tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, + pr_debug("CORE[%s] - Removed Network Portal: %pISpc,%hu on %s\n", + tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt, np->np_transport->name); tpg_np->tpg_np = NULL; @@ -892,3 +892,21 @@ int iscsit_ta_fabric_prot_type( return 0; } + +int iscsit_ta_tpg_enabled_sendtargets( + struct iscsi_portal_group *tpg, + u32 flag) +{ + struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; + + if ((flag != 0) && (flag != 1)) { + pr_err("Illegal value %d\n", flag); + return -EINVAL; + } + + a->tpg_enabled_sendtargets = flag; + pr_debug("iSCSI_TPG[%hu] - TPG enabled bit required for SendTargets:" + " %s\n", tpg->tpgt, (a->tpg_enabled_sendtargets) ? "ON" : "OFF"); + + return 0; +} diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h index 95ff5bdecd71..9db32bd24cd4 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.h +++ b/drivers/target/iscsi/iscsi_target_tpg.h @@ -22,7 +22,7 @@ extern struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(struct iscsi_session extern void iscsit_tpg_del_external_nps(struct iscsi_tpg_np *); extern struct iscsi_tpg_np *iscsit_tpg_locate_child_np(struct iscsi_tpg_np *, int); extern struct iscsi_tpg_np *iscsit_tpg_add_network_portal(struct iscsi_portal_group *, - struct __kernel_sockaddr_storage *, char *, struct iscsi_tpg_np *, + struct sockaddr_storage *, struct iscsi_tpg_np *, int); extern int iscsit_tpg_del_network_portal(struct iscsi_portal_group *, struct iscsi_tpg_np *); @@ -40,5 +40,6 @@ extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32); extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32); extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32); extern int iscsit_ta_fabric_prot_type(struct iscsi_portal_group *, u32); +extern int iscsit_ta_tpg_enabled_sendtargets(struct iscsi_portal_group *, u32); #endif /* ISCSI_TARGET_TPG_H */ diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index a2bff0702eb2..428b0d9e3dba 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -233,6 +233,7 @@ struct iscsi_r2t *iscsit_get_holder_for_r2tsn( static inline int iscsit_check_received_cmdsn(struct iscsi_session *sess, u32 cmdsn) { + u32 max_cmdsn; int ret; /* @@ -241,10 +242,10 @@ static inline int iscsit_check_received_cmdsn(struct iscsi_session *sess, u32 cm * or order CmdSNs due to multiple connection sessions and/or * CRC failures. */ - if (iscsi_sna_gt(cmdsn, sess->max_cmd_sn)) { + max_cmdsn = atomic_read(&sess->max_cmd_sn); + if (iscsi_sna_gt(cmdsn, max_cmdsn)) { pr_err("Received CmdSN: 0x%08x is greater than" - " MaxCmdSN: 0x%08x, ignoring.\n", cmdsn, - sess->max_cmd_sn); + " MaxCmdSN: 0x%08x, ignoring.\n", cmdsn, max_cmdsn); ret = CMDSN_MAXCMDSN_OVERRUN; } else if (cmdsn == sess->exp_cmd_sn) { @@ -1371,6 +1372,33 @@ int tx_data( return iscsit_do_tx_data(conn, &c); } +static bool sockaddr_equal(struct sockaddr_storage *x, struct sockaddr_storage *y) +{ + switch (x->ss_family) { + case AF_INET: { + struct sockaddr_in *sinx = (struct sockaddr_in *)x; + struct sockaddr_in *siny = (struct sockaddr_in *)y; + if (sinx->sin_addr.s_addr != siny->sin_addr.s_addr) + return false; + if (sinx->sin_port != siny->sin_port) + return false; + break; + } + case AF_INET6: { + struct sockaddr_in6 *sinx = (struct sockaddr_in6 *)x; + struct sockaddr_in6 *siny = (struct sockaddr_in6 *)y; + if (!ipv6_addr_equal(&sinx->sin6_addr, &siny->sin6_addr)) + return false; + if (sinx->sin6_port != siny->sin6_port) + return false; + break; + } + default: + return false; + } + return true; +} + void iscsit_collect_login_stats( struct iscsi_conn *conn, u8 status_class, @@ -1387,7 +1415,7 @@ void iscsit_collect_login_stats( ls = &tiqn->login_stats; spin_lock(&ls->lock); - if (!strcmp(conn->login_ip, ls->last_intr_fail_ip_addr) && + if (sockaddr_equal(&conn->login_sockaddr, &ls->last_intr_fail_sockaddr) && ((get_jiffies_64() - ls->last_fail_time) < 10)) { /* We already have the failure info for this login */ spin_unlock(&ls->lock); @@ -1427,8 +1455,7 @@ void iscsit_collect_login_stats( 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_intr_fail_sockaddr = conn->login_sockaddr; ls->last_fail_time = get_jiffies_64(); } |