hptiop: Support HighPoint RR36xx HBAs and Support SAS tape and SAS media changer

Support HighPoint RR36xx HBAs which are based on Marvell Frey.
Support SAS tape and SAS media changer.

[jejb: remove now unused label]
Signed-off-by: HighPoint Linux Team <[e-mail]>
Reviewed-by: Hannes Reinecke <[e-mail]>
Signed-off-by: James Bottomley <[e-mail]>

drivers/scsi/hptiop.c

···
 /*
  * HighPoint RR3xxx/4xxx controller driver for Linux
- * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved.
+ * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
···
 
 static char driver_name[] = "hptiop";
 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
-static const char driver_ver[] = "v1.8";
+static const char driver_ver[] = "v1.10.0";
 
 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
···
 		scsi_set_resid(scp,
 			scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
 		scp->result = SAM_STAT_CHECK_CONDITION;
-		memcpy(scp->sense_buffer, &req->sg_list,
-				min_t(size_t, SCSI_SENSE_BUFFERSIZE,
-					le32_to_cpu(req->dataxfer_length)));
+		memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE);
 		goto skip_resid;
 		break;
 
···
 
 	scp->result = 0;
 
-	if (scp->device->channel || scp->device->lun ||
-			scp->device->id > hba->max_devices) {
+	if (scp->device->channel ||
+			(scp->device->id > hba->max_devices) ||
+			((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) {
 		scp->result = DID_BAD_TARGET << 16;
 		free_req(hba, _req);
 		goto cmd_done;
···
 	NULL
 };
 
+static int hptiop_slave_config(struct scsi_device *sdev)
+{
+	if (sdev->type == TYPE_TAPE)
+		blk_queue_max_hw_sectors(sdev->request_queue, 8192);
+
+	return 0;
+}
+
 static struct scsi_host_template driver_template = {
 	.module                     = THIS_MODULE,
 	.name                       = driver_name,
···
 	.use_clustering             = ENABLE_CLUSTERING,
 	.proc_name                  = driver_name,
 	.shost_attrs                = hptiop_attrs,
+	.slave_configure            = hptiop_slave_config,
 	.this_id                    = -1,
 	.change_queue_depth         = hptiop_adjust_disk_queue_depth,
 };
···
 	}
 
 	hba = (struct hptiop_hba *)host->hostdata;
+	memset(hba, 0, sizeof(struct hptiop_hba));
 
 	hba->ops = iop_ops;
 	hba->pcidev = pcidev;
···
 	init_waitqueue_head(&hba->reset_wq);
 	init_waitqueue_head(&hba->ioctl_wq);
 
-	host->max_lun = 1;
+	host->max_lun = 128;
 	host->max_channel = 0;
 	host->io_port = 0;
 	host->n_io_port = 0;
···
 	dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
 
 	hba->req_size = req_size;
-	start_virt = dma_alloc_coherent(&pcidev->dev,
-				hba->req_size*hba->max_requests + 0x20,
-				&start_phy, GFP_KERNEL);
-
-	if (!start_virt) {
-		printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
-					hba->host->host_no);
-		goto free_request_irq;
-	}
-
-	hba->dma_coherent = start_virt;
-	hba->dma_coherent_handle = start_phy;
-
-	if ((start_phy & 0x1f) != 0) {
-		offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
-		start_phy += offset;
-		start_virt += offset;
-	}
-
 	hba->req_list = NULL;
+
 	for (i = 0; i < hba->max_requests; i++) {
+		start_virt = dma_alloc_coherent(&pcidev->dev,
+					hba->req_size + 0x20,
+					&start_phy, GFP_KERNEL);
+
+		if (!start_virt) {
+			printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
+						hba->host->host_no);
+			goto free_request_mem;
+		}
+
+		hba->dma_coherent[i] = start_virt;
+		hba->dma_coherent_handle[i] = start_phy;
+
+		if ((start_phy & 0x1f) != 0) {
+			offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
+			start_phy += offset;
+			start_virt += offset;
+		}
+
 		hba->reqs[i].next = NULL;
 		hba->reqs[i].req_virt = start_virt;
 		hba->reqs[i].req_shifted_phy = start_phy >> 5;
 		hba->reqs[i].index = i;
 		free_req(hba, &hba->reqs[i]);
-		start_virt = (char *)start_virt + hba->req_size;
-		start_phy = start_phy + hba->req_size;
 	}
 
 	/* Enable Interrupt and start background task */
···
 	return 0;
 
 free_request_mem:
-	dma_free_coherent(&hba->pcidev->dev,
-			hba->req_size * hba->max_requests + 0x20,
-			hba->dma_coherent, hba->dma_coherent_handle);
+	for (i = 0; i < hba->max_requests; i++) {
+		if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
+			dma_free_coherent(&hba->pcidev->dev,
+					hba->req_size + 0x20,
+					hba->dma_coherent[i],
+					hba->dma_coherent_handle[i]);
+		else
+			break;
+	}
 
-free_request_irq:
 	free_irq(hba->pcidev->irq, hba);
 
 unmap_pci_bar:
···
 {
 	struct Scsi_Host *host = pci_get_drvdata(pcidev);
 	struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
+	u32 i;
 
 	dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
 
···
 
 	free_irq(hba->pcidev->irq, hba);
 
-	dma_free_coherent(&hba->pcidev->dev,
-			hba->req_size * hba->max_requests + 0x20,
-			hba->dma_coherent,
-			hba->dma_coherent_handle);
+	for (i = 0; i < hba->max_requests; i++) {
+		if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
+			dma_free_coherent(&hba->pcidev->dev,
+					hba->req_size + 0x20,
+					hba->dma_coherent[i],
+					hba->dma_coherent_handle[i]);
+		else
+			break;
+	}
 
 	hba->ops->internal_memfree(hba);
 
···
 	{ PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
 	{ PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops },
 	{ PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops },
+	{ PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops },
 	{},
 };
 

drivers/scsi/hptiop.h

···
 /*
  * HighPoint RR3xxx/4xxx controller driver for Linux
- * Copyright (C) 2006-2012 HighPoint Technologies, Inc. All Rights Reserved.
+ * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
···
 	struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
 
 	/* used to free allocated dma area */
-	void        *dma_coherent;
-	dma_addr_t  dma_coherent_handle;
+	void        *dma_coherent[HPTIOP_MAX_REQUESTS];
+	dma_addr_t  dma_coherent_handle[HPTIOP_MAX_REQUESTS];
 
 	atomic_t    reset_count;
 	atomic_t    resetting;