diff options
Diffstat (limited to 'drivers/target')
25 files changed, 538 insertions, 557 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 56cf1996f..342a07c58 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; @@ -340,11 +342,9 @@ static struct iscsi_np *iscsit_get_np( } struct iscsi_np *iscsit_add_np( - struct __kernel_sockaddr_storage *sockaddr, + struct sockaddr_storage *sockaddr, int network_transport) { - struct sockaddr_in *sock_in; - struct sockaddr_in6 *sock_in6; struct iscsi_np *np; int ret; @@ -367,14 +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; - np->np_port = ntohs(sock_in6->sin6_port); - } else { - sock_in = (struct sockaddr_in *)sockaddr; - 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); @@ -408,8 +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: %pISc:%hu on %s\n", - &np->np_sockaddr, 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; } @@ -478,8 +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: %pISc:%hu on %s\n", - &np->np_sockaddr, 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); @@ -1206,7 +1198,6 @@ static u32 iscsit_do_crypto_hash_sg( u8 *pad_bytes) { u32 data_crc; - u32 i; struct scatterlist *sg; unsigned int page_off; @@ -1215,15 +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) { @@ -2553,7 +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); @@ -2625,7 +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); @@ -2836,7 +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", @@ -2899,7 +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) ? @@ -3046,7 +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); @@ -3199,7 +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", @@ -3318,7 +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", @@ -3396,6 +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); @@ -3449,18 +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); + struct sockaddr_storage *sockaddr; if (np->np_network_transport != network_transport) continue; @@ -3488,18 +3480,15 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, } } - if (inaddr_any) { - len = sprintf(buf, "TargetAddress=" - "%s:%hu,%hu", - conn->local_ip, - np->np_port, - tpg->tpgt); - } else { - len = sprintf(buf, "TargetAddress=" - "%pISpc,%hu", - &np->np_sockaddr, - tpg->tpgt); - } + if (inaddr_any) + sockaddr = &conn->local_sockaddr; + else + sockaddr = &np->np_sockaddr; + + len = sprintf(buf, "TargetAddress=" + "%pISpc,%hu", + sockaddr, + tpg->tpgt); len += 1; if ((len + payload_len) > buffer_len) { @@ -3575,7 +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, @@ -3653,7 +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); diff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h index d294f030a..4cf2c0f2b 100644 --- a/drivers/target/iscsi/iscsi_target.h +++ b/drivers/target/iscsi/iscsi_target.h @@ -10,9 +10,9 @@ 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 *, +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); diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index db3b9b986..c7461d770 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -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) { @@ -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); @@ -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: %pISc:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), - tpg->tpgt, &tpg_np->tpg_np->np_sockaddr, 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 5fabcd3d6..0382fa24b 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 666c0739b..96e78c823 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -331,7 +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) { @@ -729,9 +729,9 @@ void 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); @@ -776,8 +776,8 @@ void 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); @@ -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 %pISc:%hu\n", - &np->np_sockaddr, 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 %pISc:%hu currently not" - " active.\n", &np->np_sockaddr, 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; diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h index 57aa0d0fd..b597aa2c6 100644 --- a/drivers/target/iscsi/iscsi_target_login.h +++ b/drivers/target/iscsi/iscsi_target_login.h @@ -5,9 +5,9 @@ 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); diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index f9cde9141..5c964c09c 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -341,7 +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; @@ -353,7 +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:" @@ -382,10 +381,6 @@ static int iscsi_target_do_tx_login_io(struct iscsi_conn *conn, struct iscsi_log 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; diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c index 5e1349a3b..9dd94ff0b 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 cf59c3970..11320df93 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 de26bee4b..23c95cd14 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; @@ -459,7 +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, + struct sockaddr_storage *sockaddr, struct iscsi_tpg_np *tpg_np_parent, int network_transport) { @@ -513,8 +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: %pISc:%hu,%hu on %s\n", - tpg->tpg_tiqn->tiqn, &np->np_sockaddr, 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; @@ -527,8 +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: %pISc:%hu,%hu on %s\n", - tpg->tpg_tiqn->tiqn, &np->np_sockaddr, 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; @@ -891,3 +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 28abda89e..9db32bd24 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 *, 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 a2bff0702..428b0d9e3 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(); } diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index a556bdebd..5bc85ffed 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -526,7 +526,7 @@ static inline struct tcm_loop_tpg *tl_tpg(struct se_portal_group *se_tpg) static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg) { /* - * Return the passed NAA identifier for the SAS Target Port + * Return the passed NAA identifier for the Target Port */ return &tl_tpg(se_tpg)->tl_hba->tl_wwn_address[0]; } @@ -845,7 +845,7 @@ static int tcm_loop_make_nexus( transport_free_session(tl_nexus->se_sess); goto out; } - /* Now, register the SAS I_T Nexus as active. */ + /* Now, register the I_T Nexus as active. */ transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl, tl_nexus->se_sess, tl_nexus); tl_tpg->tl_nexus = tl_nexus; @@ -884,7 +884,7 @@ static int tcm_loop_drop_nexus( " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tpg->tl_hba), tl_nexus->se_sess->se_node_acl->initiatorname); /* - * Release the SCSI I_T Nexus to the emulated SAS Target Port + * Release the SCSI I_T Nexus to the emulated Target Port */ transport_deregister_session(tl_nexus->se_sess); tpg->tl_nexus = NULL; @@ -1034,6 +1034,11 @@ static ssize_t tcm_loop_tpg_store_transport_status( } if (!strncmp(page, "offline", 7)) { tl_tpg->tl_transport_status = TCM_TRANSPORT_OFFLINE; + if (tl_tpg->tl_nexus) { + struct se_session *tl_sess = tl_tpg->tl_nexus->se_sess; + + core_allocate_nexus_loss_ua(tl_sess->se_node_acl); + } return count; } return -EINVAL; @@ -1077,7 +1082,7 @@ static struct se_portal_group *tcm_loop_make_naa_tpg( tl_tpg->tl_hba = tl_hba; tl_tpg->tl_tpgt = tpgt; /* - * Register the tl_tpg as a emulated SAS TCM Target Endpoint + * Register the tl_tpg as a emulated TCM Target Endpoint */ ret = core_tpg_register(wwn, &tl_tpg->tl_se_tpg, tl_hba->tl_proto_id); if (ret < 0) @@ -1102,11 +1107,11 @@ static void tcm_loop_drop_naa_tpg( tl_hba = tl_tpg->tl_hba; tpgt = tl_tpg->tl_tpgt; /* - * Release the I_T Nexus for the Virtual SAS link if present + * Release the I_T Nexus for the Virtual target link if present */ tcm_loop_drop_nexus(tl_tpg); /* - * Deregister the tl_tpg as a emulated SAS TCM Target Endpoint + * Deregister the tl_tpg as a emulated TCM Target Endpoint */ core_tpg_deregister(se_tpg); @@ -1199,8 +1204,9 @@ static void tcm_loop_drop_scsi_hba( struct tcm_loop_hba, tl_hba_wwn); pr_debug("TCM_Loop_ConfigFS: Deallocating emulated Target" - " SAS Address: %s at Linux/SCSI Host ID: %d\n", - tl_hba->tl_wwn_address, tl_hba->sh->host_no); + " %s Address: %s at Linux/SCSI Host ID: %d\n", + tcm_loop_dump_proto_id(tl_hba), tl_hba->tl_wwn_address, + tl_hba->sh->host_no); /* * Call device_unregister() on the original tl_hba->dev. * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 8f1cd194f..88ea4e4f1 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -62,22 +62,13 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun) struct se_session *se_sess = se_cmd->se_sess; struct se_node_acl *nacl = se_sess->se_node_acl; struct se_dev_entry *deve; + sense_reason_t ret = TCM_NO_SENSE; rcu_read_lock(); deve = target_nacl_find_deve(nacl, unpacked_lun); if (deve) { atomic_long_inc(&deve->total_cmds); - if ((se_cmd->data_direction == DMA_TO_DEVICE) && - (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { - pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" - " Access for 0x%08llx\n", - se_cmd->se_tfo->get_fabric_name(), - unpacked_lun); - rcu_read_unlock(); - return TCM_WRITE_PROTECTED; - } - if (se_cmd->data_direction == DMA_TO_DEVICE) atomic_long_add(se_cmd->data_length, &deve->write_bytes); @@ -93,6 +84,17 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun) percpu_ref_get(&se_lun->lun_ref); se_cmd->lun_ref_active = true; + + if ((se_cmd->data_direction == DMA_TO_DEVICE) && + (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) { + pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN" + " Access for 0x%08llx\n", + se_cmd->se_tfo->get_fabric_name(), + unpacked_lun); + rcu_read_unlock(); + ret = TCM_WRITE_PROTECTED; + goto ref_dev; + } } rcu_read_unlock(); @@ -109,12 +111,6 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun) unpacked_lun); return TCM_NON_EXISTENT_LUN; } - /* - * Force WRITE PROTECT for virtual LUN 0 - */ - if ((se_cmd->data_direction != DMA_FROM_DEVICE) && - (se_cmd->data_direction != DMA_NONE)) - return TCM_WRITE_PROTECTED; se_lun = se_sess->se_tpg->tpg_virt_lun0; se_cmd->se_lun = se_sess->se_tpg->tpg_virt_lun0; @@ -123,6 +119,15 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun) percpu_ref_get(&se_lun->lun_ref); se_cmd->lun_ref_active = true; + + /* + * Force WRITE PROTECT for virtual LUN 0 + */ + if ((se_cmd->data_direction != DMA_FROM_DEVICE) && + (se_cmd->data_direction != DMA_NONE)) { + ret = TCM_WRITE_PROTECTED; + goto ref_dev; + } } /* * RCU reference protected by percpu se_lun->lun_ref taken above that @@ -130,6 +135,7 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun) * pointer can be kfree_rcu() by the final se_lun->lun_group put via * target_core_fabric_configfs.c:target_fabric_port_release */ +ref_dev: se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev); atomic_long_inc(&se_cmd->se_dev->num_cmds); @@ -140,7 +146,7 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun) atomic_long_add(se_cmd->data_length, &se_cmd->se_dev->read_bytes); - return 0; + return ret; } EXPORT_SYMBOL(transport_lookup_cmd_lun); @@ -621,8 +627,6 @@ struct se_lun_acl *core_dev_init_initiator_node_lun_acl( lacl->mapped_lun = mapped_lun; lacl->se_lun_nacl = nacl; - snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", - nacl->initiatorname); return lacl; } @@ -657,7 +661,7 @@ int core_dev_add_initiator_node_lun_acl( " InitiatorNode: %s\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, lacl->mapped_lun, (lun_access & TRANSPORT_LUNFLAGS_READ_WRITE) ? "RW" : "RO", - lacl->initiatorname); + nacl->initiatorname); /* * Check to see if there are any existing persistent reservation APTPL * pre-registrations that need to be enabled for this LUN ACL.. @@ -689,7 +693,7 @@ int core_dev_del_initiator_node_lun_acl( " InitiatorNode: %s Mapped LUN: %llu\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun, - lacl->initiatorname, lacl->mapped_lun); + nacl->initiatorname, lacl->mapped_lun); return 0; } @@ -702,7 +706,7 @@ void core_dev_free_initiator_node_lun_acl( " Mapped LUN: %llu\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), tpg->se_tpg_tfo->get_fabric_name(), - lacl->initiatorname, lacl->mapped_lun); + lacl->se_lun_nacl->initiatorname, lacl->mapped_lun); kfree(lacl); } @@ -755,7 +759,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) dev->dev_link_magic = SE_DEV_LINK_MAGIC; dev->se_hba = hba; dev->transport = hba->backend->ops; - dev->prot_length = sizeof(struct se_dif_v1_tuple); + dev->prot_length = sizeof(struct t10_pi_tuple); dev->hba_index = hba->hba_index; INIT_LIST_HEAD(&dev->dev_list); @@ -772,7 +776,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) spin_lock_init(&dev->se_tmr_lock); spin_lock_init(&dev->qf_cmd_lock); sema_init(&dev->caw_sem, 1); - atomic_set(&dev->dev_ordered_id, 0); INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list); spin_lock_init(&dev->t10_wwn.t10_vpd_lock); INIT_LIST_HEAD(&dev->t10_pr.registration_list); diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index 48a36989c..be4242946 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -203,7 +203,7 @@ static ssize_t target_fabric_mappedlun_store_write_protect( pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" " Mapped LUN: %llu Write Protect bit to %s\n", se_tpg->se_tpg_tfo->get_fabric_name(), - lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); + se_nacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); return count; diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c index be9cefc07..22390e0e0 100644 --- a/drivers/target/target_core_hba.c +++ b/drivers/target/target_core_hba.c @@ -184,3 +184,8 @@ core_delete_hba(struct se_hba *hba) kfree(hba); return 0; } + +bool target_sense_desc_format(struct se_device *dev) +{ + return (dev) ? dev->transport->get_blocks(dev) > U32_MAX : false; +} diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 6d88d24e6..0f19e11ac 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -105,6 +105,8 @@ static int iblock_configure_device(struct se_device *dev) mode = FMODE_READ|FMODE_EXCL; if (!ib_dev->ibd_readonly) mode |= FMODE_WRITE; + else + dev->dev_flags |= DF_READ_ONLY; bd = blkdev_get_by_path(ib_dev->ibd_udev_path, mode, ib_dev); if (IS_ERR(bd)) { @@ -306,20 +308,13 @@ static void iblock_complete_cmd(struct se_cmd *cmd) kfree(ibr); } -static void iblock_bio_done(struct bio *bio, int err) +static void iblock_bio_done(struct bio *bio) { struct se_cmd *cmd = bio->bi_private; struct iblock_req *ibr = cmd->priv; - /* - * Set -EIO if !BIO_UPTODATE and the passed is still err=0 - */ - if (!test_bit(BIO_UPTODATE, &bio->bi_flags) && !err) - err = -EIO; - - if (err != 0) { - pr_err("test_bit(BIO_UPTODATE) failed for bio: %p," - " err: %d\n", bio, err); + if (bio->bi_error) { + pr_err("bio error: %p, err: %d\n", bio, bio->bi_error); /* * Bump the ib_bio_err_cnt and release bio. */ @@ -370,15 +365,15 @@ static void iblock_submit_bios(struct bio_list *list, int rw) blk_finish_plug(&plug); } -static void iblock_end_io_flush(struct bio *bio, int err) +static void iblock_end_io_flush(struct bio *bio) { struct se_cmd *cmd = bio->bi_private; - if (err) - pr_err("IBLOCK: cache flush failed: %d\n", err); + if (bio->bi_error) + pr_err("IBLOCK: cache flush failed: %d\n", bio->bi_error); if (cmd) { - if (err) + if (bio->bi_error) target_complete_cmd(cmd, SAM_STAT_CHECK_CONDITION); else target_complete_cmd(cmd, SAM_STAT_GOOD); diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 08e9084ee..de18790eb 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -852,7 +852,7 @@ static ssize_t pscsi_show_configfs_dev_params(struct se_device *dev, char *b) return bl; } -static void pscsi_bi_endio(struct bio *bio, int error) +static void pscsi_bi_endio(struct bio *bio) { bio_put(bio); } @@ -973,7 +973,7 @@ fail: while (*hbio) { bio = *hbio; *hbio = (*hbio)->bi_next; - bio_endio(bio, 0); /* XXX: should be error */ + bio_endio(bio); } return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } @@ -1061,7 +1061,7 @@ fail_free_bio: while (hbio) { struct bio *bio = hbio; hbio = hbio->bi_next; - bio_endio(bio, 0); /* XXX: should be error */ + bio_endio(bio); } ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; fail: diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 384cf8894..47a833f3a 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -138,16 +138,12 @@ static int rd_allocate_sgl_table(struct rd_dev *rd_dev, struct rd_dev_sg_table * sg_per_table = (total_sg_needed > max_sg_per_table) ? max_sg_per_table : total_sg_needed; -#ifdef CONFIG_ARCH_HAS_SG_CHAIN - /* * Reserve extra element for chain entry */ if (sg_per_table < total_sg_needed) chain_entry = 1; -#endif /* CONFIG_ARCH_HAS_SG_CHAIN */ - sg = kcalloc(sg_per_table + chain_entry, sizeof(*sg), GFP_KERNEL); if (!sg) { @@ -158,15 +154,11 @@ static int rd_allocate_sgl_table(struct rd_dev *rd_dev, struct rd_dev_sg_table * sg_init_table(sg, sg_per_table + chain_entry); -#ifdef CONFIG_ARCH_HAS_SG_CHAIN - if (i > 0) { sg_chain(sg_table[i - 1].sg_table, max_sg_per_table + 1, sg); } -#endif /* CONFIG_ARCH_HAS_SG_CHAIN */ - sg_table[i].sg_table = sg; sg_table[i].rd_sg_count = sg_per_table; sg_table[i].page_start_offset = page_offset; @@ -430,42 +422,6 @@ static sense_reason_t rd_do_prot_rw(struct se_cmd *cmd, bool is_read) prot_sg = &prot_table->sg_table[prot_page - prot_table->page_start_offset]; -#ifndef CONFIG_ARCH_HAS_SG_CHAIN - - prot_npages = DIV_ROUND_UP(prot_offset + sectors * se_dev->prot_length, - PAGE_SIZE); - - /* - * Allocate temporaly contiguous scatterlist entries if prot pages - * straddles multiple scatterlist tables. - */ - if (prot_table->page_end_offset < prot_page + prot_npages - 1) { - int i; - - prot_sg = kcalloc(prot_npages, sizeof(*prot_sg), GFP_KERNEL); - if (!prot_sg) - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - - need_to_release = true; - sg_init_table(prot_sg, prot_npages); - - for (i = 0; i < prot_npages; i++) { - if (prot_page + i > prot_table->page_end_offset) { - prot_table = rd_get_prot_table(dev, - prot_page + i); - if (!prot_table) { - kfree(prot_sg); - return rc; - } - sg_unmark_end(&prot_sg[i - 1]); - } - prot_sg[i] = prot_table->sg_table[prot_page + i - - prot_table->page_start_offset]; - } - } - -#endif /* !CONFIG_ARCH_HAS_SG_CHAIN */ - if (is_read) rc = sbc_dif_verify(cmd, cmd->t_task_lba, sectors, 0, prot_sg, prot_offset); diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index e318ddbe1..0b4b2a67d 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -154,6 +154,38 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd) return 0; } +static sense_reason_t +sbc_emulate_startstop(struct se_cmd *cmd) +{ + unsigned char *cdb = cmd->t_task_cdb; + + /* + * See sbc3r36 section 5.25 + * Immediate bit should be set since there is nothing to complete + * POWER CONDITION MODIFIER 0h + */ + if (!(cdb[1] & 1) || cdb[2] || cdb[3]) + return TCM_INVALID_CDB_FIELD; + + /* + * See sbc3r36 section 5.25 + * POWER CONDITION 0h START_VALID - process START and LOEJ + */ + if (cdb[4] >> 4 & 0xf) + return TCM_INVALID_CDB_FIELD; + + /* + * See sbc3r36 section 5.25 + * LOEJ 0h - nothing to load or unload + * START 1h - we are ready + */ + if (!(cdb[4] & 1) || (cdb[4] & 2) || (cdb[4] & 4)) + return TCM_INVALID_CDB_FIELD; + + target_complete_cmd(cmd, SAM_STAT_GOOD); + return 0; +} + sector_t sbc_get_write_same_sectors(struct se_cmd *cmd) { u32 num_blocks; @@ -960,6 +992,9 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) " than 1\n", sectors); return TCM_INVALID_CDB_FIELD; } + if (sbc_check_dpofua(dev, cmd, cdb)) + return TCM_INVALID_CDB_FIELD; + /* * Double size because we have two buffers, note that * zero is not an error.. @@ -1069,6 +1104,10 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) size = 0; cmd->execute_cmd = sbc_emulate_noop; break; + case START_STOP: + size = 0; + cmd->execute_cmd = sbc_emulate_startstop; + break; default: ret = spc_parse_cdb(cmd, &size); if (ret) @@ -1191,7 +1230,7 @@ void sbc_dif_generate(struct se_cmd *cmd) { struct se_device *dev = cmd->se_dev; - struct se_dif_v1_tuple *sdt; + struct t10_pi_tuple *sdt; struct scatterlist *dsg = cmd->t_data_sg, *psg; sector_t sector = cmd->t_task_lba; void *daddr, *paddr; @@ -1203,7 +1242,7 @@ sbc_dif_generate(struct se_cmd *cmd) daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; for (j = 0; j < psg->length; - j += sizeof(struct se_dif_v1_tuple)) { + j += sizeof(*sdt)) { __u16 crc; unsigned int avail; @@ -1256,7 +1295,7 @@ sbc_dif_generate(struct se_cmd *cmd) } static sense_reason_t -sbc_dif_v1_verify(struct se_cmd *cmd, struct se_dif_v1_tuple *sdt, +sbc_dif_v1_verify(struct se_cmd *cmd, struct t10_pi_tuple *sdt, __u16 crc, sector_t sector, unsigned int ei_lba) { __be16 csum; @@ -1346,7 +1385,7 @@ sbc_dif_verify(struct se_cmd *cmd, sector_t start, unsigned int sectors, unsigned int ei_lba, struct scatterlist *psg, int psg_off) { struct se_device *dev = cmd->se_dev; - struct se_dif_v1_tuple *sdt; + struct t10_pi_tuple *sdt; struct scatterlist *dsg = cmd->t_data_sg; sector_t sector = start; void *daddr, *paddr; @@ -1361,7 +1400,7 @@ sbc_dif_verify(struct se_cmd *cmd, sector_t start, unsigned int sectors, for (i = psg_off; i < psg->length && sector < start + sectors; - i += sizeof(struct se_dif_v1_tuple)) { + i += sizeof(*sdt)) { __u16 crc; unsigned int avail; diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index f87d4cef6..9413e1a94 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -484,8 +484,8 @@ static sense_reason_t spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) { struct se_device *dev = cmd->se_dev; - int have_tp = 0; - int opt, min; + u32 mtl = 0; + int have_tp = 0, opt, min; /* * Following spc3r22 section 6.5.3 Block Limits VPD page, when @@ -516,8 +516,15 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) /* * Set MAXIMUM TRANSFER LENGTH + * + * XXX: Currently assumes single PAGE_SIZE per scatterlist for fabrics + * enforcing maximum HW scatter-gather-list entry limit */ - put_unaligned_be32(dev->dev_attrib.hw_max_sectors, &buf[8]); + if (cmd->se_tfo->max_data_sg_nents) { + mtl = (cmd->se_tfo->max_data_sg_nents * PAGE_SIZE) / + dev->dev_attrib.block_size; + } + put_unaligned_be32(min_not_zero(mtl, dev->dev_attrib.hw_max_sectors), &buf[8]); /* * Set OPTIMAL TRANSFER LENGTH @@ -768,7 +775,12 @@ static int spc_modesense_control(struct se_cmd *cmd, u8 pc, u8 *p) if (pc == 1) goto out; - p[2] = 2; + /* GLTSD: No implicit save of log parameters */ + p[2] = (1 << 1); + if (target_sense_desc_format(dev)) + /* D_SENSE: Descriptor format sense data for 64bit sectors */ + p[2] |= (1 << 2); + /* * From spc4r23, 7.4.7 Control mode page * @@ -1151,6 +1163,7 @@ static sense_reason_t spc_emulate_request_sense(struct se_cmd *cmd) unsigned char *rbuf; u8 ua_asc = 0, ua_ascq = 0; unsigned char buf[SE_SENSE_BUF]; + bool desc_format = target_sense_desc_format(cmd->se_dev); memset(buf, 0, SE_SENSE_BUF); @@ -1164,32 +1177,11 @@ static sense_reason_t spc_emulate_request_sense(struct se_cmd *cmd) if (!rbuf) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { - /* - * CURRENT ERROR, UNIT ATTENTION - */ - buf[0] = 0x70; - buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; - - /* - * The Additional Sense Code (ASC) from the UNIT ATTENTION - */ - buf[SPC_ASC_KEY_OFFSET] = ua_asc; - buf[SPC_ASCQ_KEY_OFFSET] = ua_ascq; - buf[7] = 0x0A; - } else { - /* - * CURRENT ERROR, NO SENSE - */ - buf[0] = 0x70; - buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE; - - /* - * NO ADDITIONAL SENSE INFORMATION - */ - buf[SPC_ASC_KEY_OFFSET] = 0x00; - buf[7] = 0x0A; - } + if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) + scsi_build_sense_buffer(desc_format, buf, UNIT_ATTENTION, + ua_asc, ua_ascq); + else + scsi_build_sense_buffer(desc_format, buf, NO_SENSE, 0x0, 0x0); memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length)); transport_kunmap_data_sg(cmd); @@ -1418,9 +1410,6 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) } break; default: - pr_warn("TARGET_CORE[%s]: Unsupported SCSI Opcode" - " 0x%02x, sending CHECK_CONDITION.\n", - cmd->se_tfo->get_fabric_name(), cdb[0]); return TCM_UNSUPPORTED_SCSI_OPCODE; } diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index babde4ad8..5fb9dd7f0 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -41,6 +41,7 @@ #include "target_core_internal.h" #include "target_core_alua.h" #include "target_core_pr.h" +#include "target_core_ua.h" extern struct se_device *g_lun0_dev; @@ -83,6 +84,22 @@ struct se_node_acl *core_tpg_get_initiator_node_acl( } EXPORT_SYMBOL(core_tpg_get_initiator_node_acl); +void core_allocate_nexus_loss_ua( + struct se_node_acl *nacl) +{ + struct se_dev_entry *deve; + + if (!nacl) + return; + + rcu_read_lock(); + hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) + core_scsi3_ua_allocate(deve, 0x29, + ASCQ_29H_NEXUS_LOSS_OCCURRED); + rcu_read_unlock(); +} +EXPORT_SYMBOL(core_allocate_nexus_loss_ua); + /* core_tpg_add_node_to_devs(): * * @@ -651,7 +668,10 @@ int core_tpg_add_lun( list_add_tail(&lun->lun_dev_link, &dev->dev_sep_list); spin_unlock(&dev->se_port_lock); - lun->lun_access = lun_access; + if (dev->dev_flags & DF_READ_ONLY) + lun->lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; + else + lun->lun_access = lun_access; if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) hlist_add_head_rcu(&lun->link, &tpg->tpg_lun_hlist); mutex_unlock(&tpg->tpg_lun_mutex); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index ce8574b72..5bacc7b5e 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -39,6 +39,7 @@ #include <net/sock.h> #include <net/tcp.h> #include <scsi/scsi_proto.h> +#include <scsi/scsi_common.h> #include <target/target_core_base.h> #include <target/target_core_backend.h> @@ -1074,6 +1075,55 @@ transport_set_vpd_ident(struct t10_vpd *vpd, unsigned char *page_83) } EXPORT_SYMBOL(transport_set_vpd_ident); +static sense_reason_t +target_check_max_data_sg_nents(struct se_cmd *cmd, struct se_device *dev, + unsigned int size) +{ + u32 mtl; + + if (!cmd->se_tfo->max_data_sg_nents) + return TCM_NO_SENSE; + /* + * Check if fabric enforced maximum SGL entries per I/O descriptor + * exceeds se_cmd->data_length. If true, set SCF_UNDERFLOW_BIT + + * residual_count and reduce original cmd->data_length to maximum + * length based on single PAGE_SIZE entry scatter-lists. + */ + mtl = (cmd->se_tfo->max_data_sg_nents * PAGE_SIZE); + if (cmd->data_length > mtl) { + /* + * If an existing CDB overflow is present, calculate new residual + * based on CDB size minus fabric maximum transfer length. + * + * If an existing CDB underflow is present, calculate new residual + * based on original cmd->data_length minus fabric maximum transfer + * length. + * + * Otherwise, set the underflow residual based on cmd->data_length + * minus fabric maximum transfer length. + */ + if (cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { + cmd->residual_count = (size - mtl); + } else if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) { + u32 orig_dl = size + cmd->residual_count; + cmd->residual_count = (orig_dl - mtl); + } else { + cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; + cmd->residual_count = (cmd->data_length - mtl); + } + cmd->data_length = mtl; + /* + * Reset sbc_check_prot() calculated protection payload + * length based upon the new smaller MTL. + */ + if (cmd->prot_length) { + u32 sectors = (mtl / dev->dev_attrib.block_size); + cmd->prot_length = dev->prot_length * sectors; + } + } + return TCM_NO_SENSE; +} + sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size) { @@ -1087,9 +1137,9 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size) " 0x%02x\n", cmd->se_tfo->get_fabric_name(), cmd->data_length, size, cmd->t_task_cdb[0]); - if (cmd->data_direction == DMA_TO_DEVICE) { - pr_err("Rejecting underflow/overflow" - " WRITE data\n"); + if (cmd->data_direction == DMA_TO_DEVICE && + cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) { + pr_err("Rejecting underflow/overflow WRITE data\n"); return TCM_INVALID_CDB_FIELD; } /* @@ -1119,7 +1169,7 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size) } } - return 0; + return target_check_max_data_sg_nents(cmd, dev, size); } @@ -1177,14 +1227,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd) " emulation is not supported\n"); return TCM_INVALID_CDB_FIELD; } - /* - * Used to determine when ORDERED commands should go from - * Dormant to Active status. - */ - cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id); - pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n", - cmd->se_ordered_id, cmd->sam_task_attr, - dev->transport->name); + return 0; } @@ -1246,6 +1289,11 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb) } ret = dev->transport->parse_cdb(cmd); + if (ret == TCM_UNSUPPORTED_SCSI_OPCODE) + pr_warn_ratelimited("%s/%s: Unsupported SCSI Opcode 0x%02x, sending CHECK_CONDITION.\n", + cmd->se_tfo->get_fabric_name(), + cmd->se_sess->se_node_acl->initiatorname, + cmd->t_task_cdb[0]); if (ret) return ret; @@ -1693,8 +1741,7 @@ void transport_generic_request_failure(struct se_cmd *cmd, check_stop: transport_lun_remove_cmd(cmd); - if (!transport_cmd_check_stop_to_fabric(cmd)) - ; + transport_cmd_check_stop_to_fabric(cmd); return; queue_full: @@ -1767,16 +1814,14 @@ static bool target_handle_task_attr(struct se_cmd *cmd) */ switch (cmd->sam_task_attr) { case TCM_HEAD_TAG: - pr_debug("Added HEAD_OF_QUEUE for CDB: 0x%02x, " - "se_ordered_id: %u\n", - cmd->t_task_cdb[0], cmd->se_ordered_id); + pr_debug("Added HEAD_OF_QUEUE for CDB: 0x%02x\n", + cmd->t_task_cdb[0]); return false; case TCM_ORDERED_TAG: atomic_inc_mb(&dev->dev_ordered_sync); - pr_debug("Added ORDERED for CDB: 0x%02x to ordered list, " - " se_ordered_id: %u\n", - cmd->t_task_cdb[0], cmd->se_ordered_id); + pr_debug("Added ORDERED for CDB: 0x%02x to ordered list\n", + cmd->t_task_cdb[0]); /* * Execute an ORDERED command if no other older commands @@ -1800,10 +1845,8 @@ static bool target_handle_task_attr(struct se_cmd *cmd) list_add_tail(&cmd->se_delayed_node, &dev->delayed_cmd_list); spin_unlock(&dev->delayed_cmd_lock); - pr_debug("Added CDB: 0x%02x Task Attr: 0x%02x to" - " delayed CMD list, se_ordered_id: %u\n", - cmd->t_task_cdb[0], cmd->sam_task_attr, - cmd->se_ordered_id); + pr_debug("Added CDB: 0x%02x Task Attr: 0x%02x to delayed CMD listn", + cmd->t_task_cdb[0], cmd->sam_task_attr); return true; } @@ -1888,20 +1931,18 @@ static void transport_complete_task_attr(struct se_cmd *cmd) if (cmd->sam_task_attr == TCM_SIMPLE_TAG) { atomic_dec_mb(&dev->simple_cmds); dev->dev_cur_ordered_id++; - pr_debug("Incremented dev->dev_cur_ordered_id: %u for" - " SIMPLE: %u\n", dev->dev_cur_ordered_id, - cmd->se_ordered_id); + pr_debug("Incremented dev->dev_cur_ordered_id: %u for SIMPLE\n", + dev->dev_cur_ordered_id); } else if (cmd->sam_task_attr == TCM_HEAD_TAG) { dev->dev_cur_ordered_id++; - pr_debug("Incremented dev_cur_ordered_id: %u for" - " HEAD_OF_QUEUE: %u\n", dev->dev_cur_ordered_id, - cmd->se_ordered_id); + pr_debug("Incremented dev_cur_ordered_id: %u for HEAD_OF_QUEUE\n", + dev->dev_cur_ordered_id); } else if (cmd->sam_task_attr == TCM_ORDERED_TAG) { atomic_dec_mb(&dev->dev_ordered_sync); dev->dev_cur_ordered_id++; - pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED:" - " %u\n", dev->dev_cur_ordered_id, cmd->se_ordered_id); + pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED\n", + dev->dev_cur_ordered_id); } target_restart_delayed_cmds(dev); @@ -2615,37 +2656,159 @@ bool transport_wait_for_tasks(struct se_cmd *cmd) } EXPORT_SYMBOL(transport_wait_for_tasks); -static int transport_get_sense_codes( - struct se_cmd *cmd, - u8 *asc, - u8 *ascq) +struct sense_info { + u8 key; + u8 asc; + u8 ascq; + bool add_sector_info; +}; + +static const struct sense_info sense_info_table[] = { + [TCM_NO_SENSE] = { + .key = NOT_READY + }, + [TCM_NON_EXISTENT_LUN] = { + .key = ILLEGAL_REQUEST, + .asc = 0x25 /* LOGICAL UNIT NOT SUPPORTED */ + }, + [TCM_UNSUPPORTED_SCSI_OPCODE] = { + .key = ILLEGAL_REQUEST, + .asc = 0x20, /* INVALID COMMAND OPERATION CODE */ + }, + [TCM_SECTOR_COUNT_TOO_MANY] = { + .key = ILLEGAL_REQUEST, + .asc = 0x20, /* INVALID COMMAND OPERATION CODE */ + }, + [TCM_UNKNOWN_MODE_PAGE] = { + .key = ILLEGAL_REQUEST, + .asc = 0x24, /* INVALID FIELD IN CDB */ + }, + [TCM_CHECK_CONDITION_ABORT_CMD] = { + .key = ABORTED_COMMAND, + .asc = 0x29, /* BUS DEVICE RESET FUNCTION OCCURRED */ + .ascq = 0x03, + }, + [TCM_INCORRECT_AMOUNT_OF_DATA] = { + .key = ABORTED_COMMAND, + .asc = 0x0c, /* WRITE ERROR */ + .ascq = 0x0d, /* NOT ENOUGH UNSOLICITED DATA */ + }, + [TCM_INVALID_CDB_FIELD] = { + .key = ILLEGAL_REQUEST, + .asc = 0x24, /* INVALID FIELD IN CDB */ + }, + [TCM_INVALID_PARAMETER_LIST] = { + .key = ILLEGAL_REQUEST, + .asc = 0x26, /* INVALID FIELD IN PARAMETER LIST */ + }, + [TCM_PARAMETER_LIST_LENGTH_ERROR] = { + .key = ILLEGAL_REQUEST, + .asc = 0x1a, /* PARAMETER LIST LENGTH ERROR */ + }, + [TCM_UNEXPECTED_UNSOLICITED_DATA] = { + .key = ILLEGAL_REQUEST, + .asc = 0x0c, /* WRITE ERROR */ + .ascq = 0x0c, /* UNEXPECTED_UNSOLICITED_DATA */ + }, + [TCM_SERVICE_CRC_ERROR] = { + .key = ABORTED_COMMAND, + .asc = 0x47, /* PROTOCOL SERVICE CRC ERROR */ + .ascq = 0x05, /* N/A */ + }, + [TCM_SNACK_REJECTED] = { + .key = ABORTED_COMMAND, + .asc = 0x11, /* READ ERROR */ + .ascq = 0x13, /* FAILED RETRANSMISSION REQUEST */ + }, + [TCM_WRITE_PROTECTED] = { + .key = DATA_PROTECT, + .asc = 0x27, /* WRITE PROTECTED */ + }, + [TCM_ADDRESS_OUT_OF_RANGE] = { + .key = ILLEGAL_REQUEST, + .asc = 0x21, /* LOGICAL BLOCK ADDRESS OUT OF RANGE */ + }, + [TCM_CHECK_CONDITION_UNIT_ATTENTION] = { + .key = UNIT_ATTENTION, + }, + [TCM_CHECK_CONDITION_NOT_READY] = { + .key = NOT_READY, + }, + [TCM_MISCOMPARE_VERIFY] = { + .key = MISCOMPARE, + .asc = 0x1d, /* MISCOMPARE DURING VERIFY OPERATION */ + .ascq = 0x00, + }, + [TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED] = { + .key = ABORTED_COMMAND, + .asc = 0x10, + .ascq = 0x01, /* LOGICAL BLOCK GUARD CHECK FAILED */ + .add_sector_info = true, + }, + [TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED] = { + .key = ABORTED_COMMAND, + .asc = 0x10, + .ascq = 0x02, /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */ + .add_sector_info = true, + }, + [TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED] = { + .key = ABORTED_COMMAND, + .asc = 0x10, + .ascq = 0x03, /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */ + .add_sector_info = true, + }, + [TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE] = { + /* + * Returning ILLEGAL REQUEST would cause immediate IO errors on + * Solaris initiators. Returning NOT READY instead means the + * operations will be retried a finite number of times and we + * can survive intermittent errors. + */ + .key = NOT_READY, + .asc = 0x08, /* LOGICAL UNIT COMMUNICATION FAILURE */ + }, +}; + +static int translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason) { - *asc = cmd->scsi_asc; - *ascq = cmd->scsi_ascq; + const struct sense_info *si; + u8 *buffer = cmd->sense_buffer; + int r = (__force int)reason; + u8 asc, ascq; + bool desc_format = target_sense_desc_format(cmd->se_dev); - return 0; -} + if (r < ARRAY_SIZE(sense_info_table) && sense_info_table[r].key) + si = &sense_info_table[r]; + else + si = &sense_info_table[(__force int) + TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE]; -static -void transport_err_sector_info(unsigned char *buffer, sector_t bad_sector) -{ - /* Place failed LBA in sense data information descriptor 0. */ - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 0xc; - buffer[SPC_DESC_TYPE_OFFSET] = 0; /* Information */ - buffer[SPC_ADDITIONAL_DESC_LEN_OFFSET] = 0xa; - buffer[SPC_VALIDITY_OFFSET] = 0x80; + if (reason == TCM_CHECK_CONDITION_UNIT_ATTENTION) { + core_scsi3_ua_for_check_condition(cmd, &asc, &ascq); + WARN_ON_ONCE(asc == 0); + } else if (si->asc == 0) { + WARN_ON_ONCE(cmd->scsi_asc == 0); + asc = cmd->scsi_asc; + ascq = cmd->scsi_ascq; + } else { + asc = si->asc; + ascq = si->ascq; + } + + scsi_build_sense_buffer(desc_format, buffer, si->key, asc, ascq); + if (si->add_sector_info) + return scsi_set_sense_information(buffer, + cmd->scsi_sense_length, + cmd->bad_sector); - /* Descriptor Information: failing sector */ - put_unaligned_be64(bad_sector, &buffer[12]); + return 0; } int transport_send_check_condition_and_sense(struct se_cmd *cmd, sense_reason_t reason, int from_transport) { - unsigned char *buffer = cmd->sense_buffer; unsigned long flags; - u8 asc = 0, ascq = 0; spin_lock_irqsave(&cmd->t_state_lock, flags); if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { @@ -2655,243 +2818,17 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd, cmd->se_cmd_flags |= SCF_SENT_CHECK_CONDITION; spin_unlock_irqrestore(&cmd->t_state_lock, flags); - if (!reason && from_transport) - goto after_reason; + if (!from_transport) { + int rc; - if (!from_transport) cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE; - - /* - * Actual SENSE DATA, see SPC-3 7.23.2 SPC_SENSE_KEY_OFFSET uses - * SENSE KEY values from include/scsi/scsi.h - */ - switch (reason) { - case TCM_NO_SENSE: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* Not Ready */ - buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; - /* NO ADDITIONAL SENSE INFORMATION */ - buffer[SPC_ASC_KEY_OFFSET] = 0; - buffer[SPC_ASCQ_KEY_OFFSET] = 0; - break; - case TCM_NON_EXISTENT_LUN: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL UNIT NOT SUPPORTED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x25; - break; - case TCM_UNSUPPORTED_SCSI_OPCODE: - case TCM_SECTOR_COUNT_TOO_MANY: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID COMMAND OPERATION CODE */ - buffer[SPC_ASC_KEY_OFFSET] = 0x20; - break; - case TCM_UNKNOWN_MODE_PAGE: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID FIELD IN CDB */ - buffer[SPC_ASC_KEY_OFFSET] = 0x24; - break; - case TCM_CHECK_CONDITION_ABORT_CMD: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* BUS DEVICE RESET FUNCTION OCCURRED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x29; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x03; - break; - case TCM_INCORRECT_AMOUNT_OF_DATA: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* WRITE ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x0c; - /* NOT ENOUGH UNSOLICITED DATA */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x0d; - break; - case TCM_INVALID_CDB_FIELD: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID FIELD IN CDB */ - buffer[SPC_ASC_KEY_OFFSET] = 0x24; - break; - case TCM_INVALID_PARAMETER_LIST: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* INVALID FIELD IN PARAMETER LIST */ - buffer[SPC_ASC_KEY_OFFSET] = 0x26; - break; - case TCM_PARAMETER_LIST_LENGTH_ERROR: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* PARAMETER LIST LENGTH ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x1a; - break; - case TCM_UNEXPECTED_UNSOLICITED_DATA: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* WRITE ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x0c; - /* UNEXPECTED_UNSOLICITED_DATA */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x0c; - break; - case TCM_SERVICE_CRC_ERROR: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* PROTOCOL SERVICE CRC ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x47; - /* N/A */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x05; - break; - case TCM_SNACK_REJECTED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ABORTED COMMAND */ - buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND; - /* READ ERROR */ - buffer[SPC_ASC_KEY_OFFSET] = 0x11; - /* FAILED RETRANSMISSION REQUEST */ - buffer[SPC_ASCQ_KEY_OFFSET] = 0x13; - break; - case TCM_WRITE_PROTECTED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* DATA PROTECT */ - buffer[SPC_SENSE_KEY_OFFSET] = DATA_PROTECT; - /* WRITE PROTECTED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x27; - break; - case TCM_ADDRESS_OUT_OF_RANGE: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK ADDRESS OUT OF RANGE */ - buffer[SPC_ASC_KEY_OFFSET] = 0x21; - break; - case TCM_CHECK_CONDITION_UNIT_ATTENTION: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* UNIT ATTENTION */ - buffer[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; - core_scsi3_ua_for_check_condition(cmd, &asc, &ascq); - buffer[SPC_ASC_KEY_OFFSET] = asc; - buffer[SPC_ASCQ_KEY_OFFSET] = ascq; - break; - case TCM_CHECK_CONDITION_NOT_READY: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* Not Ready */ - buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; - transport_get_sense_codes(cmd, &asc, &ascq); - buffer[SPC_ASC_KEY_OFFSET] = asc; - buffer[SPC_ASCQ_KEY_OFFSET] = ascq; - break; - case TCM_MISCOMPARE_VERIFY: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - buffer[SPC_SENSE_KEY_OFFSET] = MISCOMPARE; - /* MISCOMPARE DURING VERIFY OPERATION */ - buffer[SPC_ASC_KEY_OFFSET] = 0x1d; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x00; - break; - case TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK GUARD CHECK FAILED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x10; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x01; - transport_err_sector_info(buffer, cmd->bad_sector); - break; - case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x10; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x02; - transport_err_sector_info(buffer, cmd->bad_sector); - break; - case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* ILLEGAL REQUEST */ - buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; - /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */ - buffer[SPC_ASC_KEY_OFFSET] = 0x10; - buffer[SPC_ASCQ_KEY_OFFSET] = 0x03; - transport_err_sector_info(buffer, cmd->bad_sector); - break; - case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE: - default: - /* CURRENT ERROR */ - buffer[0] = 0x70; - buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; - /* - * Returning ILLEGAL REQUEST would cause immediate IO errors on - * Solaris initiators. Returning NOT READY instead means the - * operations will be retried a finite number of times and we - * can survive intermittent errors. - */ - buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; - /* LOGICAL UNIT COMMUNICATION FAILURE */ - buffer[SPC_ASC_KEY_OFFSET] = 0x08; - break; + cmd->scsi_status = SAM_STAT_CHECK_CONDITION; + cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER; + rc = translate_sense_reason(cmd, reason); + if (rc) + return rc; } - /* - * This code uses linux/include/scsi/scsi.h SAM status codes! - */ - cmd->scsi_status = SAM_STAT_CHECK_CONDITION; - /* - * Automatically padded, this value is encoded in the fabric's - * data_length response PDU containing the SCSI defined sense data. - */ - cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER; -after_reason: trace_target_cmd_complete(cmd); return cmd->se_tfo->queue_status(cmd); } diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index c448ef421..937cebf76 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -25,6 +25,7 @@ #include <linux/parser.h> #include <linux/vmalloc.h> #include <linux/uio_driver.h> +#include <linux/stringify.h> #include <net/genetlink.h> #include <scsi/scsi_common.h> #include <scsi/scsi_proto.h> @@ -538,14 +539,8 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry * UPDATE_HEAD(udev->data_tail, cmd->data_length, udev->data_size); pr_warn("TCMU: Userspace set UNKNOWN_OP flag on se_cmd %p\n", cmd->se_cmd); - transport_generic_request_failure(cmd->se_cmd, - TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE); - cmd->se_cmd = NULL; - kmem_cache_free(tcmu_cmd_cache, cmd); - return; - } - - if (entry->rsp.scsi_status == SAM_STAT_CHECK_CONDITION) { + entry->rsp.scsi_status = SAM_STAT_CHECK_CONDITION; + } else if (entry->rsp.scsi_status == SAM_STAT_CHECK_CONDITION) { memcpy(se_cmd->sense_buffer, entry->rsp.sense_buffer, se_cmd->scsi_sense_length); @@ -577,7 +572,6 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry * static unsigned int tcmu_handle_completions(struct tcmu_dev *udev) { struct tcmu_mailbox *mb; - LIST_HEAD(cpl_cmds); unsigned long flags; int handled = 0; @@ -905,7 +899,7 @@ static int tcmu_configure_device(struct se_device *dev) WARN_ON(!PAGE_ALIGNED(udev->data_off)); WARN_ON(udev->data_size % PAGE_SIZE); - info->version = xstr(TCMU_MAILBOX_VERSION); + info->version = __stringify(TCMU_MAILBOX_VERSION); info->mem[0].name = "tcm-user command & data buffer"; info->mem[0].addr = (phys_addr_t) udev->mb_addr; diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 68031723e..aa3caca8b 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -255,7 +255,7 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg) struct ft_cmd *cmd = arg; struct fc_frame_header *fh; - if (unlikely(IS_ERR(fp))) { + if (IS_ERR(fp)) { /* XXX need to find cmd if queued */ cmd->seq = NULL; cmd->aborted = true; |