update Intel copyright years to 2014

[dpdk.git] / lib / librte_eal / linuxapp / igb_uio / igb_uio.c

diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
index 4d77712..61c004b 100644 (file)
--- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
+++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
@@ -1,26 +1,25 @@
 /*-
  * GPL LICENSE SUMMARY
  * 
- *   Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
  * 
- *   This program is free software; you can redistribute it and/or modify 
+ *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of version 2 of the GNU General Public License as
  *   published by the Free Software Foundation.
  * 
- *   This program is distributed in the hope that it will be useful, but 
- *   WITHOUT ANY WARRANTY; without even the implied warranty of 
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *   General Public License for more details.
  * 
- *   You should have received a copy of the GNU General Public License 
- *   along with this program; if not, write to the Free Software 
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
  *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *   The full GNU General Public License is included in this distribution 
+ *   The full GNU General Public License is included in this distribution
  *   in the file called LICENSE.GPL.
  * 
  *   Contact Information:
  *   Intel Corporation
- * 
  */
 
 #include <linux/device.h>
@@ -76,6 +75,7 @@ static struct pci_device_id igbuio_pci_ids[] = {
 #define RTE_PCI_DEV_ID_DECL_IGBVF(vend, dev) {PCI_DEVICE(vend, dev)},
 #define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) {PCI_DEVICE(vend, dev)},
 #define RTE_PCI_DEV_ID_DECL_IXGBEVF(vend, dev) {PCI_DEVICE(vend, dev)},
+#define RTE_PCI_DEV_ID_DECL_VIRTIO(vend, dev) {PCI_DEVICE(vend, dev)},
 #include <rte_pci_dev_ids.h>
 { 0, },
 };
@@ -88,6 +88,68 @@ igbuio_get_uio_pci_dev(struct uio_info *info)
        return container_of(info, struct rte_uio_pci_dev, info);
 }
 
+/* sriov sysfs */
+int local_pci_num_vf(struct pci_dev *dev)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)
+       struct iov {
+               int pos;
+               int nres;
+               u32 cap;
+               u16 ctrl;
+               u16 total;
+               u16 initial;
+               u16 nr_virtfn;
+       } *iov = (struct iov*)dev->sriov;
+
+       if (!dev->is_physfn)
+               return 0;
+       
+       return iov->nr_virtfn;
+#else
+       return pci_num_vf(dev);
+#endif
+}
+
+static ssize_t
+show_max_vfs(struct device *dev, struct device_attribute *attr,
+            char *buf)
+{
+       return snprintf(buf, 10, "%u\n", local_pci_num_vf(
+                               container_of(dev, struct pci_dev, dev)));
+}
+
+static ssize_t
+store_max_vfs(struct device *dev, struct device_attribute *attr,
+             const char *buf, size_t count)
+{
+       int err = 0;
+       unsigned long max_vfs;
+       struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
+
+       if (0 != strict_strtoul(buf, 0, &max_vfs))
+               return -EINVAL;
+
+       if (0 == max_vfs)
+               pci_disable_sriov(pdev);
+       else if (0 == local_pci_num_vf(pdev))
+               err = pci_enable_sriov(pdev, max_vfs);
+       else /* do nothing if change max_vfs number */
+               err = -EINVAL;
+
+       return err ? err : count;                                                       
+}
+
+static DEVICE_ATTR(max_vfs, S_IRUGO | S_IWUSR, show_max_vfs, store_max_vfs);
+static struct attribute *dev_attrs[] = {
+       &dev_attr_max_vfs.attr,
+        NULL,
+};
+
+static const struct attribute_group dev_attr_grp = {
+       .attrs = dev_attrs,
+};
+
 static inline int
 pci_lock(struct pci_dev * pdev)
 {
@@ -438,6 +500,9 @@ igbuio_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
        pci_set_drvdata(dev, udev);
        igbuio_pci_irqcontrol(&udev->info, 0);
 
+       if (sysfs_create_group(&dev->dev.kobj, &dev_attr_grp))
+               goto fail_release_iomem;
+
        /* register uio driver */
        if (uio_register_device(&dev->dev, &udev->info))
                goto fail_release_iomem;
@@ -447,6 +512,7 @@ igbuio_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
        return 0;
 
 fail_release_iomem:
+       sysfs_remove_group(&dev->dev.kobj, &dev_attr_grp);
        igbuio_pci_release_iomem(&udev->info);
        if (udev->mode == IGBUIO_MSIX_INTR_MODE)
                pci_disable_msix(udev->pdev);
@@ -469,6 +535,7 @@ igbuio_pci_remove(struct pci_dev *dev)
                return;
        }
 
+       sysfs_remove_group(&dev->dev.kobj, &dev_attr_grp);
        uio_unregister_device(info);
        igbuio_pci_release_iomem(info);
        if (((struct rte_uio_pci_dev *)info->priv)->mode ==