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

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

diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index 00cfb40..c25bd9a 100644 (file)
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -46,6 +46,22 @@
 #define DV_RETRIES     3       /* should only need at most 
                                 * two cc/ua clears */
 
+/* Our blacklist flags */
+enum {
+       SPI_BLIST_NOIUS = 0x1,
+};
+
+/* blacklist table, modelled on scsi_devinfo.c */
+static struct {
+       char *vendor;
+       char *model;
+       unsigned flags;
+} spi_static_device_list[] __initdata = {
+       {"HP", "Ultrium 3-SCSI", SPI_BLIST_NOIUS },
+       {"IBM", "ULTRIUM-TD3", SPI_BLIST_NOIUS },
+       {NULL, NULL, 0}
+};
+
 /* Private data accessors (keep these out of the header file) */
 #define spi_dv_in_progress(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dv_in_progress)
 #define spi_dv_mutex(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dv_mutex)
@@ -207,6 +223,9 @@ static int spi_device_configure(struct transport_container *tc,
 {
        struct scsi_device *sdev = to_scsi_device(dev);
        struct scsi_target *starget = sdev->sdev_target;
+       unsigned bflags = scsi_get_device_flags_keyed(sdev, &sdev->inquiry[8],
+                                                     &sdev->inquiry[16],
+                                                     SCSI_DEVINFO_SPI);
 
        /* Populate the target capability fields with the values
         * gleaned from the device inquiry */
@@ -216,6 +235,10 @@ static int spi_device_configure(struct transport_container *tc,
        spi_support_dt(starget) = scsi_device_dt(sdev);
        spi_support_dt_only(starget) = scsi_device_dt_only(sdev);
        spi_support_ius(starget) = scsi_device_ius(sdev);
+       if (bflags & SPI_BLIST_NOIUS) {
+               dev_info(dev, "Information Units disabled by blacklist\n");
+               spi_support_ius(starget) = 0;
+       }
        spi_support_qas(starget) = scsi_device_qas(sdev);
 
        return 0;
@@ -1524,7 +1547,21 @@ EXPORT_SYMBOL(spi_release_transport);
 
 static __init int spi_transport_init(void)
 {
-       int error = transport_class_register(&spi_transport_class);
+       int error = scsi_dev_info_add_list(SCSI_DEVINFO_SPI,
+                                          "SCSI Parallel Transport Class");
+       if (!error) {
+               int i;
+
+               for (i = 0; spi_static_device_list[i].vendor; i++)
+                       scsi_dev_info_list_add_keyed(1, /* compatible */
+                                                    spi_static_device_list[i].vendor,
+                                                    spi_static_device_list[i].model,
+                                                    NULL,
+                                                    spi_static_device_list[i].flags,
+                                                    SCSI_DEVINFO_SPI);
+       }
+
+       error = transport_class_register(&spi_transport_class);
        if (error)
                return error;
        error = anon_transport_class_register(&spi_device_class);
@@ -1536,6 +1573,7 @@ static void __exit spi_transport_exit(void)
        transport_class_unregister(&spi_transport_class);
        anon_transport_class_unregister(&spi_device_class);
        transport_class_unregister(&spi_host_class);
+       scsi_dev_info_remove_list(SCSI_DEVINFO_SPI);
 }
 
 MODULE_AUTHOR("Martin Hicks");