Merge branch 'master'

14 files changed, 97 insertions, 80 deletions

diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index cb2ee25f213f..531a1f9ceb51 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -1260,16 +1260,15 @@ static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
  * Reset the bus
  *
  */
-static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
+static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
 {
-	struct Scsi_Host *shpnt = SCpnt->device->host;
 	unsigned long flags;
 
 	DO_LOCK(flags);
 
 #if defined(AHA152X_DEBUG)
 	if(HOSTDATA(shpnt)->debug & debug_eh) {
-		printk(DEBUG_LEAD "aha152x_bus_reset(%p)", CMDINFO(SCpnt), SCpnt);
+		printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
 		show_queues(shpnt);
 	}
 #endif
@@ -1277,14 +1276,14 @@ static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
 	free_hard_reset_SCs(shpnt, &ISSUE_SC);
 	free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
 
-	DPRINTK(debug_eh, DEBUG_LEAD "resetting bus\n", CMDINFO(SCpnt));
+	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
 
 	SETPORT(SCSISEQ, SCSIRSTO);
 	mdelay(256);
 	SETPORT(SCSISEQ, 0);
 	mdelay(DELAY);
 
-	DPRINTK(debug_eh, DEBUG_LEAD "bus resetted\n", CMDINFO(SCpnt));
+	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
 
 	setup_expected_interrupts(shpnt);
 	if(HOSTDATA(shpnt)->commands==0)
@@ -1295,6 +1294,14 @@ static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
 	return SUCCESS;
 }
 
+/*
+ * Reset the bus
+ *
+ */
+static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
+{
+	return aha152x_bus_reset_host(SCpnt->device->host);
+}
 
 /*
  *  Restore default values to the AIC-6260 registers and reset the fifos
@@ -1337,23 +1344,28 @@ static void reset_ports(struct Scsi_Host *shpnt)
  * Reset the host (bus and controller)
  *
  */
-int aha152x_host_reset(Scsi_Cmnd * SCpnt)
+int aha152x_host_reset_host(struct Scsi_Host *shpnt)
 {
-#if defined(AHA152X_DEBUG)
-	struct Scsi_Host *shpnt = SCpnt->device->host;
-#endif
-
-	DPRINTK(debug_eh, DEBUG_LEAD "aha152x_host_reset(%p)\n", CMDINFO(SCpnt), SCpnt);
+	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
 
-	aha152x_bus_reset(SCpnt);
+	aha152x_bus_reset_host(shpnt);
 
-	DPRINTK(debug_eh, DEBUG_LEAD "resetting ports\n", CMDINFO(SCpnt));
-	reset_ports(SCpnt->device->host);
+	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
+	reset_ports(shpnt);
 
 	return SUCCESS;
 }
 
 /*
+ * Reset the host (bus and controller)
+ * 
+ */
+static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
+{
+	return aha152x_host_reset_host(SCpnt->device->host);
+}
+
+/*
  * Return the "logical geometry"
  *
  */
@@ -1431,22 +1443,18 @@ static void run(void)
 {
 	int i;
 	for (i = 0; i<ARRAY_SIZE(aha152x_host); i++) {
-		struct Scsi_Host *shpnt = aha152x_host[i];
-		if (shpnt && HOSTDATA(shpnt)->service) {
-			HOSTDATA(shpnt)->service=0;
-			is_complete(shpnt);
-		}
+		is_complete(aha152x_host[i]);
 	}
 }
 
 /*
- *    Interrupts handler
+ * Interrupt handler
  *
  */
-
 static irqreturn_t intr(int irqno, void *dev_id, struct pt_regs *regs)
 {
 	struct Scsi_Host *shpnt = lookup_irq(irqno);
+	unsigned long flags;
 	unsigned char rev, dmacntrl0;
 
 	if (!shpnt) {
@@ -1472,23 +1480,23 @@ static irqreturn_t intr(int irqno, void *dev_id, struct pt_regs *regs)
 	if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
 		return IRQ_NONE;
 
+	if( TESTLO(DMASTAT, INTSTAT) )
+		return IRQ_NONE;	
+
 	/* no more interrupts from the controller, while we're busy.
 	   INTEN is restored by the BH handler */
 	CLRBITS(DMACNTRL0, INTEN);
 
-#if 0
-	/* check if there is already something to be
-           serviced; should not happen */
-	if(HOSTDATA(shpnt)->service) {
-		printk(KERN_ERR "aha152x%d: lost interrupt (%d)\n", HOSTNO, HOSTDATA(shpnt)->service);
-	        show_queues(shpnt);
+	DO_LOCK(flags);
+	if( HOSTDATA(shpnt)->service==0 ) {
+		HOSTDATA(shpnt)->service=1;
+
+		/* Poke the BH handler */
+		INIT_WORK(&aha152x_tq, (void *) run, NULL);
+		schedule_work(&aha152x_tq);
 	}
-#endif
-	
-	/* Poke the BH handler */
-	HOSTDATA(shpnt)->service++;
-	INIT_WORK(&aha152x_tq, (void *) run, NULL);
-	schedule_work(&aha152x_tq);
+	DO_UNLOCK(flags);
+
 	return IRQ_HANDLED;
 }
 
@@ -2527,7 +2535,18 @@ static void is_complete(struct Scsi_Host *shpnt)
 	unsigned long flags;
 	int pending;
 
+	if(!shpnt)
+		return;
+
 	DO_LOCK(flags);
+
+	if( HOSTDATA(shpnt)->service==0 )  {
+		DO_UNLOCK(flags);
+		return;
+	}
+
+	HOSTDATA(shpnt)->service = 0;
+
 	if(HOSTDATA(shpnt)->in_intr) {
 		DO_UNLOCK(flags);
 		/* aha152x_error never returns.. */
diff --git a/drivers/scsi/aha152x.h b/drivers/scsi/aha152x.h
index d277613af29b..d2add24d02a3 100644
--- a/drivers/scsi/aha152x.h
+++ b/drivers/scsi/aha152x.h
@@ -332,6 +332,6 @@ struct aha152x_setup {
 
 struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *);
 void aha152x_release(struct Scsi_Host *);
-int aha152x_host_reset(Scsi_Cmnd *);
+int aha152x_host_reset_host(struct Scsi_Host *);
 
 #endif /* _AHA152X_H */
diff --git a/drivers/scsi/jazz_esp.c b/drivers/scsi/jazz_esp.c
index 23728d1c980c..fcd304e11c26 100644
--- a/drivers/scsi/jazz_esp.c
+++ b/drivers/scsi/jazz_esp.c
@@ -65,27 +65,6 @@ static int jazz_esp_release(struct Scsi_Host *shost)
 	return 0;
 }
 
-static struct scsi_host_template driver_template = {
-	.proc_name		= "jazz_esp",
-	.proc_info		= &esp_proc_info,
-	.name			= "ESP 100/100a/200",
-	.detect			= jazz_esp_detect,
-	.slave_alloc		= esp_slave_alloc,
-	.slave_destroy		= esp_slave_destroy,
-	.release		= jazz_esp_release,
-	.info			= esp_info,
-	.queuecommand		= esp_queue,
-	.eh_abort_handler	= esp_abort,
-	.eh_bus_reset_handler	= esp_reset,
-	.can_queue		= 7,
-	.this_id		= 7,
-	.sg_tablesize		= SG_ALL,
-	.cmd_per_lun		= 1,
-	.use_clustering		= DISABLE_CLUSTERING,
-};
-
-#include "scsi_module.c"
-
 /***************************************************************** Detection */
 static int jazz_esp_detect(struct scsi_host_template *tpnt)
 {
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index ab3257a6b860..17c1df435cc8 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -78,6 +78,10 @@ int atapi_enabled = 0;
 module_param(atapi_enabled, int, 0444);
 MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
 
+int libata_fua = 0;
+module_param_named(fua, libata_fua, int, 0444);
+MODULE_PARM_DESC(fua, "FUA support (0=off, 1=on)");
+
 MODULE_AUTHOR("Jeff Garzik");
 MODULE_DESCRIPTION("Library module for ATA devices");
 MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 538784e65cdc..d0bd94abb413 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -1803,6 +1803,8 @@ static int ata_dev_supports_fua(u16 *id)
 {
 	unsigned char model[41], fw[9];
 
+	if (!libata_fua)
+		return 0;
 	if (!ata_id_has_fua(id))
 		return 0;
 
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 9d76923a2253..d822eba05f3c 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -41,6 +41,7 @@ struct ata_scsi_args {
 
 /* libata-core.c */
 extern int atapi_enabled;
+extern int libata_fua;
 extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
 				      struct ata_device *dev);
 extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 7de267e14458..4f39dd01936d 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -793,6 +793,20 @@ megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *))
 	return 0;
 }
 
+static int megasas_slave_configure(struct scsi_device *sdev)
+{
+	/*
+	 * Don't export physical disk devices to the disk driver.
+	 *
+	 * FIXME: Currently we don't export them to the midlayer at all.
+	 * 	  That will be fixed once LSI engineers have audited the
+	 * 	  firmware for possible issues.
+	 */
+	if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && sdev->type == TYPE_DISK)
+		return -ENXIO;
+	return 0;
+}
+
 /**
  * megasas_wait_for_outstanding -	Wait for all outstanding cmds
  * @instance:				Adapter soft state
@@ -943,6 +957,7 @@ static struct scsi_host_template megasas_template = {
 	.module = THIS_MODULE,
 	.name = "LSI Logic SAS based MegaRAID driver",
 	.proc_name = "megaraid_sas",
+	.slave_configure = megasas_slave_configure,
 	.queuecommand = megasas_queue_command,
 	.eh_device_reset_handler = megasas_reset_device,
 	.eh_bus_reset_handler = megasas_reset_bus_host,
@@ -1071,20 +1086,6 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 			break;
 		}
 
-		/*
-		 * Don't export physical disk devices to mid-layer.
-		 */
-		if (!MEGASAS_IS_LOGICAL(cmd->scmd) &&
-		    (hdr->cmd_status == MFI_STAT_OK) &&
-		    (cmd->scmd->cmnd[0] == INQUIRY)) {
-
-			if (((*(u8 *) cmd->scmd->request_buffer) & 0x1F) ==
-			    TYPE_DISK) {
-				cmd->scmd->result = DID_BAD_TARGET << 16;
-				exception = 1;
-			}
-		}
-
 	case MFI_CMD_LD_READ:
 	case MFI_CMD_LD_WRITE:
 
diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c
index 0c9edb7051f4..5609847e254a 100644
--- a/drivers/scsi/pcmcia/aha152x_stub.c
+++ b/drivers/scsi/pcmcia/aha152x_stub.c
@@ -275,10 +275,8 @@ static int aha152x_resume(struct pcmcia_device *dev)
 
 	link->state &= ~DEV_SUSPEND;
 	if (link->state & DEV_CONFIG) {
-		Scsi_Cmnd tmp;
 		pcmcia_request_configuration(link->handle, &link->conf);
-		tmp.device->host = info->host;
-		aha152x_host_reset(&tmp);
+		aha152x_host_reset_host(info->host);
 	}
 
 	return 0;
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 50f8057be75d..5d169a2881b9 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1308,7 +1308,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
 	 * the request was not marked fast fail.  Note that above,
 	 * even if the request is marked fast fail, we still requeue
 	 * for queue congestion conditions (QUEUE_FULL or BUSY) */
-	if ((++scmd->retries) < scmd->allowed 
+	if ((++scmd->retries) <= scmd->allowed
 	    && !blk_noretry_request(scmd->request)) {
 		return NEEDS_RETRY;
 	} else {
@@ -1433,7 +1433,7 @@ void scsi_eh_flush_done_q(struct list_head *done_q)
 		list_del_init(&scmd->eh_entry);
 		if (scsi_device_online(scmd->device) &&
 		    !blk_noretry_request(scmd->request) &&
-		    (++scmd->retries < scmd->allowed)) {
+		    (++scmd->retries <= scmd->allowed)) {
 			SCSI_LOG_ERROR_RECOVERY(3, printk("%s: flush"
 							  " retry cmd: %p\n",
 							  current->comm,
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 4362dcde74af..701a328f7beb 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1498,7 +1498,7 @@ static void scsi_kill_request(struct request *req, request_queue_t *q)
 static void scsi_softirq_done(struct request *rq)
 {
 	struct scsi_cmnd *cmd = rq->completion_data;
-	unsigned long wait_for = cmd->allowed * cmd->timeout_per_command;
+	unsigned long wait_for = (cmd->allowed + 1) * cmd->timeout_per_command;
 	int disposition;
 
 	INIT_LIST_HEAD(&cmd->eh_entry);
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 5acb83ca5ae5..f9ecc3dea7df 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -752,8 +752,20 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags)
 
 	transport_configure_device(&sdev->sdev_gendev);
 
-	if (sdev->host->hostt->slave_configure)
-		sdev->host->hostt->slave_configure(sdev);
+	if (sdev->host->hostt->slave_configure) {
+		int ret = sdev->host->hostt->slave_configure(sdev);
+		if (ret) {
+			/*
+			 * if LLDD reports slave not present, don't clutter
+			 * console with alloc failure messages
+			 */
+			if (ret != -ENXIO) {
+				sdev_printk(KERN_ERR, sdev,
+					"failed to configure device\n");
+			}
+			return SCSI_SCAN_NO_RESPONSE;
+		}
+	}
 
 	/*
 	 * Ok, the device is now all set up, we can
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index f2c9acf11bd0..929032e370db 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -1498,8 +1498,7 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
 	}
 
 	/* Search the bindings array */
-	if (likely((ids->roles & FC_RPORT_ROLE_FCP_TARGET) &&
-		(fc_host_tgtid_bind_type(shost) != FC_TGTID_BIND_NONE))) {
+	if (fc_host_tgtid_bind_type(shost) != FC_TGTID_BIND_NONE) {
 
 		/* search for a matching consistent binding */
 
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 2a547538d444..5a0a19322d01 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -2162,7 +2162,7 @@ sg_link_reserve(Sg_fd * sfp, Sg_request * srp, int size)
 
 	srp->res_used = 1;
 	SCSI_LOG_TIMEOUT(4, printk("sg_link_reserve: size=%d\n", size));
-	rem = size = (size + 1) & (~1);	/* round to even for aha1542 */
+	rem = size;
 
 	for (k = 0; k < rsv_schp->k_use_sg; ++k, ++sg) {
 		num = sg->length;
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index f4854c33f48d..2627000ca653 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -919,6 +919,8 @@ static int sym_prepare_setting(struct Scsi_Host *shost, struct sym_hcb *np, stru
 
 		tp->usrflags |= (SYM_DISC_ENABLED | SYM_TAGS_ENABLED);
 		tp->usrtags = SYM_SETUP_MAX_TAG;
+		tp->usr_width = np->maxwide;
+		tp->usr_period = 9;
 
 		sym_nvram_setup_target(tp, i, nvram);