Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, lpfc, qla2xxx, mpi3mr, libsas) and
  the usual minor updates and bug fixes but no significant core changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (116 commits)
  scsi: storvsc: Handle additional SRB status values
  scsi: libsas: Delete sas_ata_task.retry_count
  scsi: libsas: Delete sas_ata_task.stp_affil_pol
  scsi: libsas: Delete sas_ata_task.set_affil_pol
  scsi: libsas: Delete sas_ssp_task.task_prio
  scsi: libsas: Delete sas_ssp_task.enable_first_burst
  scsi: libsas: Delete sas_ssp_task.retry_count
  scsi: libsas: Delete struct scsi_core
  scsi: libsas: Delete enum sas_phy_type
  scsi: libsas: Delete enum sas_class
  scsi: libsas: Delete sas_ha_struct.lldd_module
  scsi: target: Fix write perf due to unneeded throttling
  scsi: lpfc: Do not abuse UUID APIs and LPFC_COMPRESS_VMID_SIZE
  scsi: pm8001: Remove unused declarations
  scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock
  scsi: elx: sli4: Remove code duplication
  scsi: bfa: Replace one-element array with flexible-array member in struct fc_rscn_pl_s
  scsi: qla2xxx: Remove unused declarations
  scsi: pmcraid: Use pci_dev_id() to simplify the code
  scsi: pm80xx: Set RETFIS when requested by libsas
  ...

4 files changed, 42 insertions, 66 deletions

diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 5d0f51822414..1cff6052e820 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -45,9 +45,9 @@ static ssize_t lio_target_np_driver_show(struct config_item *item, char *page,
 
 	tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
 	if (tpg_np_new)
-		rb = sprintf(page, "1\n");
+		rb = sysfs_emit(page, "1\n");
 	else
-		rb = sprintf(page, "0\n");
+		rb = sysfs_emit(page, "0\n");
 
 	return rb;
 }
@@ -282,7 +282,7 @@ static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\
 {									\
 	struct se_node_acl *se_nacl = attrib_to_nacl(item);		\
 	struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl);		\
-	return sprintf(page, "%u\n", nacl->node_attrib.name);		\
+	return sysfs_emit(page, "%u\n", nacl->node_attrib.name);		\
 }									\
 									\
 static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\
@@ -320,7 +320,7 @@ static ssize_t iscsi_nacl_attrib_authentication_show(struct config_item *item,
 	struct se_node_acl *se_nacl = attrib_to_nacl(item);
 	struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl);
 
-	return sprintf(page, "%d\n", nacl->node_attrib.authentication);
+	return sysfs_emit(page, "%d\n", nacl->node_attrib.authentication);
 }
 
 static ssize_t iscsi_nacl_attrib_authentication_store(struct config_item *item,
@@ -533,102 +533,102 @@ static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page)
 	spin_lock_bh(&se_nacl->nacl_sess_lock);
 	se_sess = se_nacl->nacl_sess;
 	if (!se_sess) {
-		rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
+		rb += sysfs_emit_at(page, rb, "No active iSCSI Session for Initiator"
 			" Endpoint: %s\n", se_nacl->initiatorname);
 	} else {
 		sess = se_sess->fabric_sess_ptr;
 
-		rb += sprintf(page+rb, "InitiatorName: %s\n",
+		rb += sysfs_emit_at(page, rb, "InitiatorName: %s\n",
 			sess->sess_ops->InitiatorName);
-		rb += sprintf(page+rb, "InitiatorAlias: %s\n",
+		rb += sysfs_emit_at(page, rb, "InitiatorAlias: %s\n",
 			sess->sess_ops->InitiatorAlias);
 
-		rb += sprintf(page+rb,
+		rb += sysfs_emit_at(page, rb,
 			      "LIO Session ID: %u   ISID: 0x%6ph  TSIH: %hu  ",
 			      sess->sid, sess->isid, sess->tsih);
-		rb += sprintf(page+rb, "SessionType: %s\n",
+		rb += sysfs_emit_at(page, rb, "SessionType: %s\n",
 				(sess->sess_ops->SessionType) ?
 				"Discovery" : "Normal");
-		rb += sprintf(page+rb, "Session State: ");
+		rb += sysfs_emit_at(page, rb, "Session State: ");
 		switch (sess->session_state) {
 		case TARG_SESS_STATE_FREE:
-			rb += sprintf(page+rb, "TARG_SESS_FREE\n");
+			rb += sysfs_emit_at(page, rb, "TARG_SESS_FREE\n");
 			break;
 		case TARG_SESS_STATE_ACTIVE:
-			rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
+			rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_ACTIVE\n");
 			break;
 		case TARG_SESS_STATE_LOGGED_IN:
-			rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
+			rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_LOGGED_IN\n");
 			break;
 		case TARG_SESS_STATE_FAILED:
-			rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
+			rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_FAILED\n");
 			break;
 		case TARG_SESS_STATE_IN_CONTINUE:
-			rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
+			rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_IN_CONTINUE\n");
 			break;
 		default:
-			rb += sprintf(page+rb, "ERROR: Unknown Session"
+			rb += sysfs_emit_at(page, rb, "ERROR: Unknown Session"
 					" State!\n");
 			break;
 		}
 
-		rb += sprintf(page+rb, "---------------------[iSCSI Session"
+		rb += sysfs_emit_at(page, rb, "---------------------[iSCSI Session"
 				" Values]-----------------------\n");
-		rb += sprintf(page+rb, "  CmdSN/WR  :  CmdSN/WC  :  ExpCmdSN"
+		rb += sysfs_emit_at(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"
+		rb += sysfs_emit_at(page, rb, " 0x%08x   0x%08x   0x%08x   0x%08x"
 				"   0x%08x   0x%08x\n",
 			sess->cmdsn_window,
 			(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"
+		rb += sysfs_emit_at(page, rb, "----------------------[iSCSI"
 				" Connections]-------------------------\n");
 
 		spin_lock(&sess->conn_lock);
 		list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
-			rb += sprintf(page+rb, "CID: %hu  Connection"
+			rb += sysfs_emit_at(page, rb, "CID: %hu  Connection"
 					" State: ", conn->cid);
 			switch (conn->conn_state) {
 			case TARG_CONN_STATE_FREE:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"TARG_CONN_STATE_FREE\n");
 				break;
 			case TARG_CONN_STATE_XPT_UP:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"TARG_CONN_STATE_XPT_UP\n");
 				break;
 			case TARG_CONN_STATE_IN_LOGIN:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"TARG_CONN_STATE_IN_LOGIN\n");
 				break;
 			case TARG_CONN_STATE_LOGGED_IN:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"TARG_CONN_STATE_LOGGED_IN\n");
 				break;
 			case TARG_CONN_STATE_IN_LOGOUT:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"TARG_CONN_STATE_IN_LOGOUT\n");
 				break;
 			case TARG_CONN_STATE_LOGOUT_REQUESTED:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"TARG_CONN_STATE_LOGOUT_REQUESTED\n");
 				break;
 			case TARG_CONN_STATE_CLEANUP_WAIT:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"TARG_CONN_STATE_CLEANUP_WAIT\n");
 				break;
 			default:
-				rb += sprintf(page+rb,
+				rb += sysfs_emit_at(page, rb,
 					"ERROR: Unknown Connection State!\n");
 				break;
 			}
 
-			rb += sprintf(page+rb, "   Address %pISc %s", &conn->login_sockaddr,
+			rb += sysfs_emit_at(page, rb, "   Address %pISc %s", &conn->login_sockaddr,
 				(conn->network_transport == ISCSI_TCP) ?
 				"TCP" : "SCTP");
-			rb += sprintf(page+rb, "  StatSN: 0x%08x\n",
+			rb += sysfs_emit_at(page, rb, "  StatSN: 0x%08x\n",
 				conn->stat_sn);
 		}
 		spin_unlock(&sess->conn_lock);
@@ -641,7 +641,7 @@ static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page)
 static ssize_t lio_target_nacl_cmdsn_depth_show(struct config_item *item,
 		char *page)
 {
-	return sprintf(page, "%u\n", acl_to_nacl(item)->queue_depth);
+	return sysfs_emit(page, "%u\n", acl_to_nacl(item)->queue_depth);
 }
 
 static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item,
@@ -750,7 +750,7 @@ static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item,	\
 	if (iscsit_get_tpg(tpg) < 0)					\
 		return -EINVAL;						\
 									\
-	rb = sprintf(page, "%u\n", tpg->tpg_attrib.name);		\
+	rb = sysfs_emit(page, "%u\n", tpg->tpg_attrib.name);		\
 	iscsit_put_tpg(tpg);						\
 	return rb;							\
 }									\
@@ -783,7 +783,6 @@ CONFIGFS_ATTR(iscsi_tpg_attrib_, name)
 
 DEF_TPG_ATTRIB(authentication);
 DEF_TPG_ATTRIB(login_timeout);
-DEF_TPG_ATTRIB(netif_timeout);
 DEF_TPG_ATTRIB(generate_node_acls);
 DEF_TPG_ATTRIB(default_cmdsn_depth);
 DEF_TPG_ATTRIB(cache_dynamic_acls);
@@ -799,7 +798,6 @@ DEF_TPG_ATTRIB(login_keys_workaround);
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_attr_authentication,
 	&iscsi_tpg_attrib_attr_login_timeout,
-	&iscsi_tpg_attrib_attr_netif_timeout,
 	&iscsi_tpg_attrib_attr_generate_node_acls,
 	&iscsi_tpg_attrib_attr_default_cmdsn_depth,
 	&iscsi_tpg_attrib_attr_cache_dynamic_acls,
@@ -1138,7 +1136,7 @@ static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
 static ssize_t lio_target_wwn_lio_version_show(struct config_item *item,
 		char *page)
 {
-	return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
+	return sysfs_emit(page, "Datera Inc. iSCSI Target %s\n", ISCSIT_VERSION);
 }
 
 CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version);
@@ -1146,7 +1144,7 @@ CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version);
 static ssize_t lio_target_wwn_cpus_allowed_list_show(
 		struct config_item *item, char *page)
 {
-	return sprintf(page, "%*pbl\n",
+	return sysfs_emit(page, "%*pbl\n",
 		       cpumask_pr_args(iscsit_global->allowed_cpumask));
 }
 
@@ -1283,7 +1281,7 @@ static ssize_t iscsi_disc_enforce_discovery_auth_show(struct config_item *item,
 {
 	struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
 
-	return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
+	return sysfs_emit(page, "%d\n", discovery_auth->enforce_discovery_auth);
 }
 
 static ssize_t iscsi_disc_enforce_discovery_auth_store(struct config_item *item,
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 3cac1aafef68..f7bac98fd4fe 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -211,7 +211,6 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
 
 	a->authentication = TA_AUTHENTICATION;
 	a->login_timeout = TA_LOGIN_TIMEOUT;
-	a->netif_timeout = TA_NETIF_TIMEOUT;
 	a->default_cmdsn_depth = TA_DEFAULT_CMDSN_DEPTH;
 	a->generate_node_acls = TA_GENERATE_NODE_ACLS;
 	a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS;
@@ -666,31 +665,6 @@ int iscsit_ta_login_timeout(
 	return 0;
 }
 
-int iscsit_ta_netif_timeout(
-	struct iscsi_portal_group *tpg,
-	u32 netif_timeout)
-{
-	struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
-
-	if (netif_timeout > TA_NETIF_TIMEOUT_MAX) {
-		pr_err("Requested Network Interface Timeout %u larger"
-			" than maximum %u\n", netif_timeout,
-				TA_NETIF_TIMEOUT_MAX);
-		return -EINVAL;
-	} else if (netif_timeout < TA_NETIF_TIMEOUT_MIN) {
-		pr_err("Requested Network Interface Timeout %u smaller"
-			" than minimum %u\n", netif_timeout,
-				TA_NETIF_TIMEOUT_MIN);
-		return -EINVAL;
-	}
-
-	a->netif_timeout = netif_timeout;
-	pr_debug("Set Network Interface Timeout to %u for"
-		" Target Portal Group %hu\n", a->netif_timeout, tpg->tpgt);
-
-	return 0;
-}
-
 int iscsit_ta_generate_node_acls(
 	struct iscsi_portal_group *tpg,
 	u32 flag)
diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h
index 839e45362776..71d067f62177 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.h
+++ b/drivers/target/iscsi/iscsi_target_tpg.h
@@ -38,7 +38,6 @@ extern int iscsit_tpg_del_network_portal(struct iscsi_portal_group *,
 			struct iscsi_tpg_np *);
 extern int iscsit_ta_authentication(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_login_timeout(struct iscsi_portal_group *, u32);
-extern int iscsit_ta_netif_timeout(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_generate_node_acls(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_default_cmdsn_depth(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_cache_dynamic_acls(struct iscsi_portal_group *, u32);
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index a7050f63b7cc..a6a06a5f7483 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -739,11 +739,16 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 
 	if (data_direction == DMA_TO_DEVICE) {
 		struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+
+		/*
+		 * Set bits to indicate WRITE_ODIRECT so we are not throttled
+		 * by WBT.
+		 */
+		opf = REQ_OP_WRITE | REQ_SYNC | REQ_IDLE;
 		/*
 		 * Force writethrough using REQ_FUA if a volatile write cache
 		 * is not enabled, or if initiator set the Force Unit Access bit.
 		 */
-		opf = REQ_OP_WRITE;
 		miter_dir = SG_MITER_TO_SG;
 		if (bdev_fua(ib_dev->ibd_bd)) {
 			if (cmd->se_cmd_flags & SCF_FUA)