コード例 #1
0
ファイル: portdrv_pci.c プロジェクト: zhoupeng/spice4xen
/*
 * pcie_portdrv_probe - Probe PCI-Express port devices
 * @dev: PCI-Express port device being probed
 *
 * If detected invokes the pcie_port_device_register() method for 
 * this port device.
 *
 */
static int __devinit pcie_portdrv_probe (struct pci_dev *dev, 
				const struct pci_device_id *id )
{
	int			status;

	status = pcie_port_device_probe(dev);
	if (status)
		return status;

	if (pci_enable_device(dev) < 0) 
		return -ENODEV;
	
	pci_set_master(dev);
        if (!dev->irq) {
		printk(KERN_WARNING 
		"%s->Dev[%04x:%04x] has invalid IRQ. Check vendor BIOS\n", 
		__FUNCTION__, dev->device, dev->vendor);
	}
	if (pcie_port_device_register(dev)) {
		pci_disable_device(dev);
		return -ENOMEM;
	}

	pcie_portdrv_save_config(dev);

	pci_enable_pcie_error_reporting(dev);

	return 0;
}
コード例 #2
0
ファイル: adf_aer.c プロジェクト: 383530895/linux
/**
 * adf_enable_aer() - Enable Advance Error Reporting for acceleration device
 * @accel_dev:  Pointer to acceleration device.
 * @adf:        PCI device driver owning the given acceleration device.
 *
 * Function enables PCI Advance Error Reporting for the
 * QAT acceleration device accel_dev.
 * To be used by QAT device specific drivers.
 *
 * Return: 0 on success, error code othewise.
 */
int adf_enable_aer(struct adf_accel_dev *accel_dev, struct pci_driver *adf)
{
	struct pci_dev *pdev = accel_to_pci_dev(accel_dev);

	adf->err_handler = &adf_err_handler;
	pci_enable_pcie_error_reporting(pdev);
	return 0;
}
コード例 #3
0
ファイル: portdrv_pci.c プロジェクト: zhoupeng/spice4xen
static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)
{
	pci_ers_result_t status;

	/* If fatal, restore cfg space for possible link reset at upstream */
	if (dev->error_state == pci_channel_io_frozen) {
		pcie_portdrv_restore_config(dev);
		pci_enable_pcie_error_reporting(dev);
	}

	device_for_each_child(&dev->dev, &status, slot_reset_iter);

	return status;
}
コード例 #4
0
ファイル: portdrv_pci.c プロジェクト: ParrotSec/linux-psec
static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)
{
	pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED;

	/* If fatal, restore cfg space for possible link reset at upstream */
	if (dev->error_state == pci_channel_io_frozen) {
		dev->state_saved = true;
		pci_restore_state(dev);
		pcie_portdrv_restore_config(dev);
		pci_enable_pcie_error_reporting(dev);
	}

	/* get true return value from &status */
	device_for_each_child(&dev->dev, &status, slot_reset_iter);
	return status;
}
コード例 #5
0
static int set_device_error_reporting(struct pci_dev *dev, void *data)
{
	bool enable = *((bool *)data);

	if ((dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) ||
	    (dev->pcie_type == PCI_EXP_TYPE_UPSTREAM) ||
	    (dev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)) {
		if (enable)
			pci_enable_pcie_error_reporting(dev);
		else
			pci_disable_pcie_error_reporting(dev);
	}

	if (enable)
		pcie_set_ecrc_checking(dev);

	return 0;
}
コード例 #6
0
static int set_device_error_reporting(struct pci_dev *dev, void *data)
{
	bool enable = *((bool *)data);

	if (dev->pcie_type == PCIE_RC_PORT ||
	    dev->pcie_type == PCIE_SW_UPSTREAM_PORT ||
	    dev->pcie_type == PCIE_SW_DOWNSTREAM_PORT) {
		if (enable)
			pci_enable_pcie_error_reporting(dev);
		else
			pci_disable_pcie_error_reporting(dev);
	}

	if (enable)
		pcie_set_ecrc_checking(dev);

	return 0;
}
コード例 #7
0
static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)
{
	pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED;
	int retval;

	
	if (dev->error_state == pci_channel_io_frozen) {
		dev->state_saved = true;
		pci_restore_state(dev);
		pcie_portdrv_restore_config(dev);
		pci_enable_pcie_error_reporting(dev);
	}

	
	retval = device_for_each_child(&dev->dev, &status, slot_reset_iter);

	return status;
}
コード例 #8
0
ファイル: qib_pcie.c プロジェクト: mkrufky/linux
/*
 * Do all the common PCIe setup and initialization.
 * devdata is not yet allocated, and is not allocated until after this
 * routine returns success.  Therefore qib_dev_err() can't be used for error
 * printing.
 */
int qib_pcie_init(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	int ret;

	ret = pci_enable_device(pdev);
	if (ret) {
		/*
		 * This can happen (in theory) iff:
		 * We did a chip reset, and then failed to reprogram the
		 * BAR, or the chip reset due to an internal error.  We then
		 * unloaded the driver and reloaded it.
		 *
		 * Both reset cases set the BAR back to initial state.  For
		 * the latter case, the AER sticky error bit at offset 0x718
		 * should be set, but the Linux kernel doesn't yet know
		 * about that, it appears.  If the original BAR was retained
		 * in the kernel data structures, this may be OK.
		 */
		qib_early_err(&pdev->dev, "pci enable failed: error %d\n",
			      -ret);
		goto done;
	}

	ret = pci_request_regions(pdev, QIB_DRV_NAME);
	if (ret) {
		qib_devinfo(pdev, "pci_request_regions fails: err %d\n", -ret);
		goto bail;
	}

	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
	if (ret) {
		/*
		 * If the 64 bit setup fails, try 32 bit.  Some systems
		 * do not setup 64 bit maps on systems with 2GB or less
		 * memory installed.
		 */
		ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
		if (ret) {
			qib_devinfo(pdev, "Unable to set DMA mask: %d\n", ret);
			goto bail;
		}
		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
	} else
		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
	if (ret) {
		qib_early_err(&pdev->dev,
			      "Unable to set DMA consistent mask: %d\n", ret);
		goto bail;
	}

	pci_set_master(pdev);
	ret = pci_enable_pcie_error_reporting(pdev);
	if (ret) {
		qib_early_err(&pdev->dev,
			      "Unable to enable pcie error reporting: %d\n",
			      ret);
		ret = 0;
	}
	goto done;

bail:
	pci_disable_device(pdev);
	pci_release_regions(pdev);
done:
	return ret;
}
コード例 #9
0
int qib_pcie_init(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	int ret;

	ret = pci_enable_device(pdev);
	if (ret) {
		/*
                                     
                                                          
                                                              
                                         
    
                                                             
                                                              
                                                         
                                                              
                                                   
   */
		qib_early_err(&pdev->dev, "pci enable failed: error %d\n",
			      -ret);
		goto done;
	}

	ret = pci_request_regions(pdev, QIB_DRV_NAME);
	if (ret) {
		qib_devinfo(pdev, "pci_request_regions fails: err %d\n", -ret);
		goto bail;
	}

	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
	if (ret) {
		/*
                                                         
                                                         
                      
   */
		ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
		if (ret) {
			qib_devinfo(pdev, "Unable to set DMA mask: %d\n", ret);
			goto bail;
		}
		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
	} else
		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
	if (ret) {
		qib_early_err(&pdev->dev,
			      "Unable to set DMA consistent mask: %d\n", ret);
		goto bail;
	}

	pci_set_master(pdev);
	ret = pci_enable_pcie_error_reporting(pdev);
	if (ret) {
		qib_early_err(&pdev->dev,
			      "Unable to enable pcie error reporting: %d\n",
			      ret);
		ret = 0;
	}
	goto done;

bail:
	pci_disable_device(pdev);
	pci_release_regions(pdev);
done:
	return ret;
}
コード例 #10
0
ファイル: card_base.c プロジェクト: AK101111/linux
/**
 * genwqe_pci_setup() - Allocate PCIe related resources for our card
 */
static int genwqe_pci_setup(struct genwqe_dev *cd)
{
	int err;
	struct pci_dev *pci_dev = cd->pci_dev;

	err = pci_enable_device_mem(pci_dev);
	if (err) {
		dev_err(&pci_dev->dev,
			"err: failed to enable pci memory (err=%d)\n", err);
		goto err_out;
	}

	/* Reserve PCI I/O and memory resources */
	err = pci_request_mem_regions(pci_dev, genwqe_driver_name);
	if (err) {
		dev_err(&pci_dev->dev,
			"[%s] err: request bars failed (%d)\n", __func__, err);
		err = -EIO;
		goto err_disable_device;
	}

	/* check for 64-bit DMA address supported (DAC) */
	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(64))) {
		err = pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(64));
		if (err) {
			dev_err(&pci_dev->dev,
				"err: DMA64 consistent mask error\n");
			err = -EIO;
			goto out_release_resources;
		}
	/* check for 32-bit DMA address supported (SAC) */
	} else if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
		err = pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(32));
		if (err) {
			dev_err(&pci_dev->dev,
				"err: DMA32 consistent mask error\n");
			err = -EIO;
			goto out_release_resources;
		}
	} else {
		dev_err(&pci_dev->dev,
			"err: neither DMA32 nor DMA64 supported\n");
		err = -EIO;
		goto out_release_resources;
	}

	pci_set_master(pci_dev);
	pci_enable_pcie_error_reporting(pci_dev);

	/* EEH recovery requires PCIe fundamental reset */
	pci_dev->needs_freset = 1;

	/* request complete BAR-0 space (length = 0) */
	cd->mmio_len = pci_resource_len(pci_dev, 0);
	cd->mmio = pci_iomap(pci_dev, 0, 0);
	if (cd->mmio == NULL) {
		dev_err(&pci_dev->dev,
			"[%s] err: mapping BAR0 failed\n", __func__);
		err = -ENOMEM;
		goto out_release_resources;
	}

	cd->num_vfs = pci_sriov_get_totalvfs(pci_dev);
	if (cd->num_vfs < 0)
		cd->num_vfs = 0;

	err = genwqe_read_ids(cd);
	if (err)
		goto out_iounmap;

	return 0;

 out_iounmap:
	pci_iounmap(pci_dev, cd->mmio);
 out_release_resources:
	pci_release_mem_regions(pci_dev);
 err_disable_device:
	pci_disable_device(pci_dev);
 err_out:
	return err;
}
コード例 #11
0
ファイル: qib_pcie.c プロジェクト: HobbesOSR/kitten
/*
 * Do all the common PCIe setup and initialization.
 * devdata is not yet allocated, and is not allocated until after this
 * routine returns success.  Therefore qib_dev_err() can't be used for error
 * printing.
 */
int qib_pcie_init(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	int ret;

	ret = pci_enable_device(pdev);
	if (ret) {
		/*
		 * This can happen (in theory) iff:
		 * We did a chip reset, and then failed to reprogram the
		 * BAR, or the chip reset due to an internal error.  We then
		 * unloaded the driver and reloaded it.
		 *
		 * Both reset cases set the BAR back to initial state.  For
		 * the latter case, the AER sticky error bit at offset 0x718
		 * should be set, but the Linux kernel doesn't yet know
		 * about that, it appears.  If the original BAR was retained
		 * in the kernel data structures, this may be OK.
		 */
		qib_early_err(&pdev->dev, "pci enable failed: error %d\n",
			      -ret);
		goto done;
	}

	ret = pci_request_regions(pdev, QIB_DRV_NAME);
	if (ret) {
		qib_devinfo(pdev, "pci_request_regions fails: err %d\n",
			 -ret);
		goto bail;
	}

	ret = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
	if (ret) {
		/*
		 * If the 64 bit setup fails, try 32 bit.  Some systems
		 * do not setup 64 bit maps on systems with 2GB or less
		 * memory installed.
		 */
		ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
		if (ret) {
			qib_devinfo(pdev, "Unable to set DMA mask: %d\n", ret);
			goto bail;
		}
		qib_dbg("No 64bit DMA mask, used 32 bit mask\n");
		ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
	} else
		ret = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
	if (ret) {
		qib_early_err(&pdev->dev,
			      "Unable to set DMA consistent mask: %d\n", ret);
		goto bail;
	}

	pci_set_master(pdev);
#ifdef CONFIG_PCIEAER
	/* enable basic AER reporting.  Perhaps more later */
	if (pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR)) {
		ret = pci_enable_pcie_error_reporting(pdev);
		if (ret)
			qib_early_err(&pdev->dev,
				      "Unable to enable pcie error reporting"
				      ": %d\n", ret);
			ret = 0;
	} else
		qib_dbg("AER capability not found! AER reports not enabled\n");
#endif

	goto done;

bail:
	pci_disable_device(pdev);
	pci_release_regions(pdev);

done:
	return ret;
}