[SCSI] ipr: add workaround for MSI interrupts on P7

[safe/jmp/linux-2.6] / drivers / scsi / hptiop.c

diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index c596ab5..a0e7e71 100644 (file)
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -1,6 +1,6 @@
 /*
  * HighPoint RR3xxx/4xxx controller driver for Linux
- * Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
+ * Copyright (C) 2006-2009 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
@@ -41,7 +41,7 @@ MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
 
 static char driver_name[] = "hptiop";
 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
-static const char driver_ver[] = "v1.3 (071203)";
+static const char driver_ver[] = "v1.6 (090910)";
 
 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,
@@ -115,9 +115,13 @@ static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba)
 static int iop_intr_itl(struct hptiop_hba *hba)
 {
        struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop;
+       void __iomem *plx = hba->u.itl.plx;
        u32 status;
        int ret = 0;
 
+       if (plx && readl(plx + 0x11C5C) & 0xf)
+               writel(1, plx + 0x11C60);
+
        status = readl(&iop->outbound_intstatus);
 
        if (status & IOPMU_OUTBOUND_INT_MSG0) {
@@ -460,15 +464,25 @@ static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
 
 static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba)
 {
+       struct pci_dev *pcidev = hba->pcidev;
        hba->u.itl.iop = hptiop_map_pci_bar(hba, 0);
-       if (hba->u.itl.iop)
-               return 0;
-       else
+       if (hba->u.itl.iop == NULL)
                return -1;
+       if ((pcidev->device & 0xff00) == 0x4400) {
+               hba->u.itl.plx = hba->u.itl.iop;
+               hba->u.itl.iop = hptiop_map_pci_bar(hba, 2);
+               if (hba->u.itl.iop == NULL) {
+                       iounmap(hba->u.itl.plx);
+                       return -1;
+               }
+       }
+       return 0;
 }
 
 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba)
 {
+       if (hba->u.itl.plx)
+               iounmap(hba->u.itl.plx);
        iounmap(hba->u.itl.iop);
 }
 
@@ -1239,22 +1253,23 @@ static struct hptiop_adapter_ops hptiop_mv_ops = {
 static struct pci_device_id hptiop_id_table[] = {
        { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
-       { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
-       { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
+       { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
+       { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
-       { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
-       { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
+       { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
-       { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
-       { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops },
+       { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
+       { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
+       { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
+       { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops },
        { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
        { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
        { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },