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@@ -1317,6 +1317,149 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
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return error;
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}
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+#if (defined(CONFIG_PM))
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+void aac_release_resources(struct aac_dev *aac)
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+{
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+ int i;
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+
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+ aac_adapter_disable_int(aac);
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+ if (aac->pdev->device == PMC_DEVICE_S6 ||
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+ aac->pdev->device == PMC_DEVICE_S7 ||
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+ aac->pdev->device == PMC_DEVICE_S8 ||
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+ aac->pdev->device == PMC_DEVICE_S9) {
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+ if (aac->max_msix > 1) {
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+ for (i = 0; i < aac->max_msix; i++)
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+ free_irq(aac->msixentry[i].vector,
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+ &(aac->aac_msix[i]));
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+ } else {
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+ free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
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+ }
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+ } else {
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+ free_irq(aac->pdev->irq, aac);
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+ }
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+ if (aac->msi)
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+ pci_disable_msi(aac->pdev);
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+ else if (aac->max_msix > 1)
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+ pci_disable_msix(aac->pdev);
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+
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+}
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+
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+static int aac_acquire_resources(struct aac_dev *dev)
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+{
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+ int i, j;
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+ int instance = dev->id;
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+ const char *name = dev->name;
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+ unsigned long status;
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+ /*
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+ * First clear out all interrupts. Then enable the one's that we
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+ * can handle.
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+ */
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+ while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)
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+ || status == 0xffffffff)
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+ msleep(20);
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+
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+ aac_adapter_disable_int(dev);
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+ aac_adapter_enable_int(dev);
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+
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+
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+ if ((dev->pdev->device == PMC_DEVICE_S7 ||
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+ dev->pdev->device == PMC_DEVICE_S8 ||
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+ dev->pdev->device == PMC_DEVICE_S9))
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+ aac_define_int_mode(dev);
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+
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+ if (dev->msi_enabled)
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+ aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
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+
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+ if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
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+ for (i = 0; i < dev->max_msix; i++) {
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+ dev->aac_msix[i].vector_no = i;
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+ dev->aac_msix[i].dev = dev;
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+
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+ if (request_irq(dev->msixentry[i].vector,
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+ dev->a_ops.adapter_intr,
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+ 0, "aacraid", &(dev->aac_msix[i]))) {
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+ printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
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+ name, instance, i);
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+ for (j = 0 ; j < i ; j++)
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+ free_irq(dev->msixentry[j].vector,
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+ &(dev->aac_msix[j]));
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+ pci_disable_msix(dev->pdev);
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+ goto error_iounmap;
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+ }
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+ }
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+ } else {
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+ dev->aac_msix[0].vector_no = 0;
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+ dev->aac_msix[0].dev = dev;
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+
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+ if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
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+ IRQF_SHARED, "aacraid",
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+ &(dev->aac_msix[0])) < 0) {
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+ if (dev->msi)
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+ pci_disable_msi(dev->pdev);
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+ printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
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+ name, instance);
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+ goto error_iounmap;
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+ }
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+ }
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+
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+ aac_adapter_enable_int(dev);
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+
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+ if (!dev->sync_mode)
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+ aac_adapter_start(dev);
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+ return 0;
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+
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+error_iounmap:
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+ return -1;
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+
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+}
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+static int aac_suspend(struct pci_dev *pdev, pm_message_t state)
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+{
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+
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+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
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+ struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
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+
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+ scsi_block_requests(shost);
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+ aac_send_shutdown(aac);
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+
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+ aac_release_resources(aac);
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+
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+ pci_set_drvdata(pdev, shost);
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+ pci_save_state(pdev);
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+ pci_disable_device(pdev);
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+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
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+
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+ return 0;
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+}
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+
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+static int aac_resume(struct pci_dev *pdev)
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+{
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+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
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+ struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
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+ int r;
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+
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+ pci_set_power_state(pdev, PCI_D0);
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+ pci_enable_wake(pdev, PCI_D0, 0);
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+ pci_restore_state(pdev);
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+ r = pci_enable_device(pdev);
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+
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+ if (r)
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+ goto fail_device;
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+
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+ pci_set_master(pdev);
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+ if (aac_acquire_resources(aac))
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+ goto fail_device;
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+ scsi_unblock_requests(shost);
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+
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+ return 0;
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+
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+fail_device:
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+ printk(KERN_INFO "%s%d: resume failed.\n", aac->name, aac->id);
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+ scsi_host_put(shost);
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+ pci_disable_device(pdev);
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+ return -ENODEV;
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+}
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+#endif
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+
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static void aac_shutdown(struct pci_dev *dev)
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{
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struct Scsi_Host *shost = pci_get_drvdata(dev);
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@@ -1356,6 +1499,10 @@ static struct pci_driver aac_pci_driver = {
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.id_table = aac_pci_tbl,
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.probe = aac_probe_one,
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.remove = aac_remove_one,
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+#if (defined(CONFIG_PM))
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+ .suspend = aac_suspend,
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+ .resume = aac_resume,
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+#endif
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.shutdown = aac_shutdown,
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};
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Mahesh Rajashekhara