Moving interrupt type enum out of igb_uio and renaming it to be more
generic. Such a strange header naming and separation is done mostly to
make coming virtio patches easier to port to dpdk.org tree.
---
lib/librte_eal/common/Makefile | 1 +
lib/librte_eal/common/include/rte_pci.h | 1 +
.../common/include/rte_pci_dev_feature_defs.h | 46 +++++++++++++++++++++
.../common/include/rte_pci_dev_features.h | 44 ++++++++++++++++++++
lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 48 +++++++++-------------
5 files changed, 112 insertions(+), 28 deletions(-)
create mode 100644 lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
create mode 100644 lib/librte_eal/common/include/rte_pci_dev_features.h
diff --git a/lib/librte_eal/common/Makefile b/lib/librte_eal/common/Makefile
index 915cef1..7f27966 100644
--- a/lib/librte_eal/common/Makefile
+++ b/lib/librte_eal/common/Makefile
@@ -40,6 +40,7 @@ INC += rte_string_fns.h rte_cpuflags.h rte_version.h
rte_tailq_elem.h
INC += rte_eal_memconfig.h rte_malloc_heap.h
INC += rte_hexdump.h rte_devargs.h rte_dev.h
INC += rte_common_vect.h
+INC += rte_pci_dev_feature_defs.h rte_pci_dev_features.h
ifeq ($(CONFIG_RTE_INSECURE_FUNCTION_WARNING),y)
INC += rte_warnings.h
diff --git a/lib/librte_eal/common/include/rte_pci.h
b/lib/librte_eal/common/include/rte_pci.h
index 3857584..3608ee0 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -80,6 +80,7 @@ extern "C" {
#include <sys/queue.h>
#include <stdint.h>
#include <inttypes.h>
+
#include <rte_interrupts.h>
TAILQ_HEAD(pci_device_list, rte_pci_device); /**< PCI devices in D-linked Q. */
diff --git a/lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
b/lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
new file mode 100644
index 0000000..82f2c00
--- /dev/null
+++ b/lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
@@ -0,0 +1,46 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_PCI_DEV_DEFS_H_
+#define _RTE_PCI_DEV_DEFS_H_
+
+/* interrupt mode */
+enum rte_intr_mode {
+ RTE_INTR_MODE_NONE = 0,
+ RTE_INTR_MODE_LEGACY,
+ RTE_INTR_MODE_MSI,
+ RTE_INTR_MODE_MSIX,
+ RTE_INTR_MODE_MAX
+};
+
+#endif /* _RTE_PCI_DEV_DEFS_H_ */
diff --git a/lib/librte_eal/common/include/rte_pci_dev_features.h
b/lib/librte_eal/common/include/rte_pci_dev_features.h
new file mode 100644
index 0000000..01200de
--- /dev/null
+++ b/lib/librte_eal/common/include/rte_pci_dev_features.h
@@ -0,0 +1,44 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_PCI_DEV_FEATURES_H
+#define _RTE_PCI_DEV_FEATURES_H
+
+#include <rte_pci_dev_feature_defs.h>
+
+#define RTE_INTR_MODE_NONE_NAME "none"
+#define RTE_INTR_MODE_LEGACY_NAME "legacy"
+#define RTE_INTR_MODE_MSI_NAME "msi"
+#define RTE_INTR_MODE_MSIX_NAME "msix"
+
+#endif
diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
index 6fa7396..8e467a2 100644
--- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
+++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
@@ -33,6 +33,7 @@
#ifdef CONFIG_XEN_DOM0
#include <xen/xen.h>
#endif
+#include <rte_pci_dev_features.h>
/**
* MSI-X related macros, copy from linux/pci_regs.h in kernel 2.6.39,
@@ -49,14 +50,6 @@
#define IGBUIO_NUM_MSI_VECTORS 1
-/* interrupt mode */
-enum igbuio_intr_mode {
- IGBUIO_LEGACY_INTR_MODE = 0,
- IGBUIO_MSI_INTR_MODE,
- IGBUIO_MSIX_INTR_MODE,
- IGBUIO_INTR_MODE_MAX
-};
-
/**
* A structure describing the private information for a uio device.
*/
@@ -64,13 +57,13 @@ struct rte_uio_pci_dev {
struct uio_info info;
struct pci_dev *pdev;
spinlock_t lock; /* spinlock for accessing PCI config space or msix
data in multi tasks/isr */
- enum igbuio_intr_mode mode;
+ enum rte_intr_mode mode;
struct msix_entry \
msix_entries[IGBUIO_NUM_MSI_VECTORS]; /* pointer to the msix
vectors to be allocated later */
};
static char *intr_mode = NULL;
-static enum igbuio_intr_mode igbuio_intr_mode_preferred =
IGBUIO_MSIX_INTR_MODE;
+static enum rte_intr_mode igbuio_intr_mode_preferred = RTE_INTR_MODE_MSIX;
/* PCI device id table */
static struct pci_device_id igbuio_pci_ids[] = {
@@ -222,14 +215,13 @@ igbuio_set_interrupt_mask(struct rte_uio_pci_dev *udev,
int32_t state)
{
struct pci_dev *pdev = udev->pdev;
- if (udev->mode == IGBUIO_MSIX_INTR_MODE) {
+ if (udev->mode == RTE_INTR_MODE_MSIX) {
struct msi_desc *desc;
list_for_each_entry(desc, &pdev->msi_list, list) {
igbuio_msix_mask_irq(desc, state);
}
- }
- else if (udev->mode == IGBUIO_LEGACY_INTR_MODE) {
+ } else if (udev->mode == RTE_INTR_MODE_LEGACY) {
uint32_t status;
uint16_t old, new;
@@ -301,7 +293,7 @@ igbuio_pci_irqhandler(int irq, struct uio_info *info)
goto spin_unlock;
/* for legacy mode, interrupt maybe shared */
- if (udev->mode == IGBUIO_LEGACY_INTR_MODE) {
+ if (udev->mode == RTE_INTR_MODE_LEGACY) {
pci_read_config_dword(pdev, PCI_COMMAND, &cmd_status_dword);
status = cmd_status_dword >> 16;
/* interrupt is not ours, goes to out */
@@ -520,18 +512,18 @@ igbuio_pci_probe(struct pci_dev *dev, const struct
pci_device_id *id)
#endif
udev->info.priv = udev;
udev->pdev = dev;
- udev->mode = 0; /* set the default value for interrupt mode */
+ udev->mode = RTE_INTR_MODE_LEGACY;
spin_lock_init(&udev->lock);
/* check if it need to try msix first */
- if (igbuio_intr_mode_preferred == IGBUIO_MSIX_INTR_MODE) {
+ if (igbuio_intr_mode_preferred == RTE_INTR_MODE_MSIX) {
int vector;
for (vector = 0; vector < IGBUIO_NUM_MSI_VECTORS; vector ++)
udev->msix_entries[vector].entry = vector;
if (pci_enable_msix(udev->pdev, udev->msix_entries,
IGBUIO_NUM_MSI_VECTORS) == 0) {
- udev->mode = IGBUIO_MSIX_INTR_MODE;
+ udev->mode = RTE_INTR_MODE_MSIX;
}
else {
pci_disable_msix(udev->pdev);
@@ -539,13 +531,13 @@ igbuio_pci_probe(struct pci_dev *dev, const struct
pci_device_id *id)
}
}
switch (udev->mode) {
- case IGBUIO_MSIX_INTR_MODE:
+ case RTE_INTR_MODE_MSIX:
udev->info.irq_flags = 0;
udev->info.irq = udev->msix_entries[0].vector;
break;
- case IGBUIO_MSI_INTR_MODE:
+ case RTE_INTR_MODE_MSI:
break;
- case IGBUIO_LEGACY_INTR_MODE:
+ case RTE_INTR_MODE_LEGACY:
udev->info.irq_flags = IRQF_SHARED;
udev->info.irq = dev->irq;
break;
@@ -570,7 +562,7 @@ igbuio_pci_probe(struct pci_dev *dev, const struct
pci_device_id *id)
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)
+ if (udev->mode == RTE_INTR_MODE_MSIX)
pci_disable_msix(udev->pdev);
pci_release_regions(dev);
fail_disable:
@@ -595,7 +587,7 @@ igbuio_pci_remove(struct pci_dev *dev)
uio_unregister_device(info);
igbuio_pci_release_iomem(info);
if (((struct rte_uio_pci_dev *)info->priv)->mode ==
- IGBUIO_MSIX_INTR_MODE)
+ RTE_INTR_MODE_MSIX)
pci_disable_msix(dev);
pci_release_regions(dev);
pci_disable_device(dev);
@@ -611,11 +603,11 @@ igbuio_config_intr_mode(char *intr_str)
return 0;
}
- if (!strcmp(intr_str, "msix")) {
- igbuio_intr_mode_preferred = IGBUIO_MSIX_INTR_MODE;
+ if (!strcmp(intr_str, RTE_INTR_MODE_MSIX_NAME)) {
+ igbuio_intr_mode_preferred = RTE_INTR_MODE_MSIX;
printk(KERN_INFO "Use MSIX interrupt\n");
- } else if (!strcmp(intr_str, "legacy")) {
- igbuio_intr_mode_preferred = IGBUIO_LEGACY_INTR_MODE;
+ } else if (!strcmp(intr_str, RTE_INTR_MODE_LEGACY_NAME)) {
+ igbuio_intr_mode_preferred = RTE_INTR_MODE_LEGACY;
printk(KERN_INFO "Use legacy interrupt\n");
} else {
printk(KERN_INFO "Error: bad parameter - %s\n", intr_str);
@@ -656,8 +648,8 @@ module_exit(igbuio_pci_exit_module);
module_param(intr_mode, charp, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(intr_mode,
"igb_uio interrupt mode (default=msix):\n"
-" msix Use MSIX interrupt\n"
-" legacy Use Legacy interrupt\n"
+" " RTE_INTR_MODE_MSIX_NAME " Use MSIX interrupt\n"
+" " RTE_INTR_MODE_LEGACY_NAME " Use Legacy interrupt\n"
"\n");
MODULE_DESCRIPTION("UIO driver for Intel IGB PCI cards");
--
1.8.1.4
