From: Kelsey Skunberg <skunberg.kelsey@gmail.com>
To: bhelgaas@google.com, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: skhan@linuxfoundation.org,
linux-kernel-mentees@lists.linuxfoundation.org,
bodong@mellanox.com, ddutile@redhat.com,
gregkh@linuxfoundation.org, skunberg.kelsey@gmail.com
Subject: [PATCH v3 4/4] PCI/IOV: Move sysfs SR-IOV functions to iov.c
Date: Thu, 15 Aug 2019 09:33:53 -0600 [thread overview]
Message-ID: <20190815153352.86143-5-skunberg.kelsey@gmail.com> (raw)
In-Reply-To: <20190813204513.4790-1-skunberg.kelsey@gmail.com>
The sysfs SR-IOV functions are for an optional feature and will be better
organized to keep with the feature's code. Move the sysfs SR-IOV functions
to /pci/iov.c.
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
---
drivers/pci/iov.c | 168 ++++++++++++++++++++++++++++++++++++++
drivers/pci/pci-sysfs.c | 173 ----------------------------------------
drivers/pci/pci.h | 2 +-
3 files changed, 169 insertions(+), 174 deletions(-)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 9b48818ced01..b335db21c85e 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -240,6 +240,174 @@ void pci_iov_remove_virtfn(struct pci_dev *dev, int id)
pci_dev_put(dev);
}
+static ssize_t sriov_totalvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
+}
+
+static ssize_t sriov_numvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
+}
+
+/*
+ * num_vfs > 0; number of VFs to enable
+ * num_vfs = 0; disable all VFs
+ *
+ * Note: SRIOV spec does not allow partial VF
+ * disable, so it's all or none.
+ */
+static ssize_t sriov_numvfs_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int ret;
+ u16 num_vfs;
+
+ ret = kstrtou16(buf, 0, &num_vfs);
+ if (ret < 0)
+ return ret;
+
+ if (num_vfs > pci_sriov_get_totalvfs(pdev))
+ return -ERANGE;
+
+ device_lock(&pdev->dev);
+
+ if (num_vfs == pdev->sriov->num_VFs)
+ goto exit;
+
+ /* is PF driver loaded w/callback */
+ if (!pdev->driver || !pdev->driver->sriov_configure) {
+ pci_info(pdev, "Driver does not support SRIOV configuration via sysfs\n");
+ ret = -ENOENT;
+ goto exit;
+ }
+
+ if (num_vfs == 0) {
+ /* disable VFs */
+ ret = pdev->driver->sriov_configure(pdev, 0);
+ goto exit;
+ }
+
+ /* enable VFs */
+ if (pdev->sriov->num_VFs) {
+ pci_warn(pdev, "%d VFs already enabled. Disable before enabling %d VFs\n",
+ pdev->sriov->num_VFs, num_vfs);
+ ret = -EBUSY;
+ goto exit;
+ }
+
+ ret = pdev->driver->sriov_configure(pdev, num_vfs);
+ if (ret < 0)
+ goto exit;
+
+ if (ret != num_vfs)
+ pci_warn(pdev, "%d VFs requested; only %d enabled\n",
+ num_vfs, ret);
+
+exit:
+ device_unlock(&pdev->dev);
+
+ if (ret < 0)
+ return ret;
+
+ return count;
+}
+
+static ssize_t sriov_offset_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->offset);
+}
+
+static ssize_t sriov_stride_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->stride);
+}
+
+static ssize_t sriov_vf_device_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%x\n", pdev->sriov->vf_device);
+}
+
+static ssize_t sriov_drivers_autoprobe_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->drivers_autoprobe);
+}
+
+static ssize_t sriov_drivers_autoprobe_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ bool drivers_autoprobe;
+
+ if (kstrtobool(buf, &drivers_autoprobe) < 0)
+ return -EINVAL;
+
+ pdev->sriov->drivers_autoprobe = drivers_autoprobe;
+
+ return count;
+}
+
+static DEVICE_ATTR_RO(sriov_totalvfs);
+static DEVICE_ATTR(sriov_numvfs, 0664, sriov_numvfs_show, sriov_numvfs_store);
+static DEVICE_ATTR_RO(sriov_offset);
+static DEVICE_ATTR_RO(sriov_stride);
+static DEVICE_ATTR_RO(sriov_vf_device);
+static DEVICE_ATTR(sriov_drivers_autoprobe, 0664, sriov_drivers_autoprobe_show,
+ sriov_drivers_autoprobe_store);
+
+static struct attribute *sriov_dev_attrs[] = {
+ &dev_attr_sriov_totalvfs.attr,
+ &dev_attr_sriov_numvfs.attr,
+ &dev_attr_sriov_offset.attr,
+ &dev_attr_sriov_stride.attr,
+ &dev_attr_sriov_vf_device.attr,
+ &dev_attr_sriov_drivers_autoprobe.attr,
+ NULL,
+};
+
+static umode_t sriov_attrs_are_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = kobj_to_dev(kobj);
+
+ if (!dev_is_pf(dev))
+ return 0;
+
+ return a->mode;
+}
+
+const struct attribute_group sriov_dev_attr_group = {
+ .attrs = sriov_dev_attrs,
+ .is_visible = sriov_attrs_are_visible,
+};
+
int __weak pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
{
return 0;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 5bb301efec98..868e35109284 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -548,151 +548,6 @@ static ssize_t devspec_show(struct device *dev,
static DEVICE_ATTR_RO(devspec);
#endif
-#ifdef CONFIG_PCI_IOV
-static ssize_t sriov_totalvfs_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
-}
-
-
-static ssize_t sriov_numvfs_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
-}
-
-/*
- * num_vfs > 0; number of VFs to enable
- * num_vfs = 0; disable all VFs
- *
- * Note: SRIOV spec doesn't allow partial VF
- * disable, so it's all or none.
- */
-static ssize_t sriov_numvfs_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- int ret;
- u16 num_vfs;
-
- ret = kstrtou16(buf, 0, &num_vfs);
- if (ret < 0)
- return ret;
-
- if (num_vfs > pci_sriov_get_totalvfs(pdev))
- return -ERANGE;
-
- device_lock(&pdev->dev);
-
- if (num_vfs == pdev->sriov->num_VFs)
- goto exit;
-
- /* is PF driver loaded w/callback */
- if (!pdev->driver || !pdev->driver->sriov_configure) {
- pci_info(pdev, "Driver doesn't support SRIOV configuration via sysfs\n");
- ret = -ENOENT;
- goto exit;
- }
-
- if (num_vfs == 0) {
- /* disable VFs */
- ret = pdev->driver->sriov_configure(pdev, 0);
- goto exit;
- }
-
- /* enable VFs */
- if (pdev->sriov->num_VFs) {
- pci_warn(pdev, "%d VFs already enabled. Disable before enabling %d VFs\n",
- pdev->sriov->num_VFs, num_vfs);
- ret = -EBUSY;
- goto exit;
- }
-
- ret = pdev->driver->sriov_configure(pdev, num_vfs);
- if (ret < 0)
- goto exit;
-
- if (ret != num_vfs)
- pci_warn(pdev, "%d VFs requested; only %d enabled\n",
- num_vfs, ret);
-
-exit:
- device_unlock(&pdev->dev);
-
- if (ret < 0)
- return ret;
-
- return count;
-}
-
-static ssize_t sriov_offset_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->offset);
-}
-
-static ssize_t sriov_stride_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->stride);
-}
-
-static ssize_t sriov_vf_device_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%x\n", pdev->sriov->vf_device);
-}
-
-static ssize_t sriov_drivers_autoprobe_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->drivers_autoprobe);
-}
-
-static ssize_t sriov_drivers_autoprobe_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- bool drivers_autoprobe;
-
- if (kstrtobool(buf, &drivers_autoprobe) < 0)
- return -EINVAL;
-
- pdev->sriov->drivers_autoprobe = drivers_autoprobe;
-
- return count;
-}
-
-static DEVICE_ATTR_RO(sriov_totalvfs);
-static DEVICE_ATTR(sriov_numvfs, 0664, sriov_numvfs_show, sriov_numvfs_store);
-static DEVICE_ATTR_RO(sriov_offset);
-static DEVICE_ATTR_RO(sriov_stride);
-static DEVICE_ATTR_RO(sriov_vf_device);
-static DEVICE_ATTR(sriov_drivers_autoprobe, 0664, sriov_drivers_autoprobe_show,
- sriov_drivers_autoprobe_store);
-#endif /* CONFIG_PCI_IOV */
-
static ssize_t driver_override_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -1691,34 +1546,6 @@ static const struct attribute_group pci_dev_hp_attr_group = {
.is_visible = pci_dev_hp_attrs_are_visible,
};
-#ifdef CONFIG_PCI_IOV
-static struct attribute *sriov_dev_attrs[] = {
- &dev_attr_sriov_totalvfs.attr,
- &dev_attr_sriov_numvfs.attr,
- &dev_attr_sriov_offset.attr,
- &dev_attr_sriov_stride.attr,
- &dev_attr_sriov_vf_device.attr,
- &dev_attr_sriov_drivers_autoprobe.attr,
- NULL,
-};
-
-static umode_t sriov_attrs_are_visible(struct kobject *kobj,
- struct attribute *a, int n)
-{
- struct device *dev = kobj_to_dev(kobj);
-
- if (!dev_is_pf(dev))
- return 0;
-
- return a->mode;
-}
-
-static const struct attribute_group sriov_dev_attr_group = {
- .attrs = sriov_dev_attrs,
- .is_visible = sriov_attrs_are_visible,
-};
-#endif /* CONFIG_PCI_IOV */
-
static const struct attribute_group pci_dev_attr_group = {
.attrs = pci_dev_dev_attrs,
.is_visible = pci_dev_attrs_are_visible,
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 61bbfd611140..7e3c6c8ae6f9 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -455,7 +455,7 @@ void pci_iov_update_resource(struct pci_dev *dev, int resno);
resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
void pci_restore_iov_state(struct pci_dev *dev);
int pci_iov_bus_range(struct pci_bus *bus);
-
+extern const struct attribute_group sriov_dev_attr_group;
#else
static inline int pci_iov_init(struct pci_dev *dev)
{
--
2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: skunberg.kelsey at gmail.com (Kelsey Skunberg)
Subject: [Linux-kernel-mentees] [PATCH v3 4/4] PCI/IOV: Move sysfs SR-IOV functions to iov.c
Date: Thu, 15 Aug 2019 09:33:53 -0600 [thread overview]
Message-ID: <20190815153352.86143-5-skunberg.kelsey@gmail.com> (raw)
In-Reply-To: <20190813204513.4790-1-skunberg.kelsey@gmail.com>
The sysfs SR-IOV functions are for an optional feature and will be better
organized to keep with the feature's code. Move the sysfs SR-IOV functions
to /pci/iov.c.
Signed-off-by: Kelsey Skunberg <skunberg.kelsey at gmail.com>
---
drivers/pci/iov.c | 168 ++++++++++++++++++++++++++++++++++++++
drivers/pci/pci-sysfs.c | 173 ----------------------------------------
drivers/pci/pci.h | 2 +-
3 files changed, 169 insertions(+), 174 deletions(-)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 9b48818ced01..b335db21c85e 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -240,6 +240,174 @@ void pci_iov_remove_virtfn(struct pci_dev *dev, int id)
pci_dev_put(dev);
}
+static ssize_t sriov_totalvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
+}
+
+static ssize_t sriov_numvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
+}
+
+/*
+ * num_vfs > 0; number of VFs to enable
+ * num_vfs = 0; disable all VFs
+ *
+ * Note: SRIOV spec does not allow partial VF
+ * disable, so it's all or none.
+ */
+static ssize_t sriov_numvfs_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int ret;
+ u16 num_vfs;
+
+ ret = kstrtou16(buf, 0, &num_vfs);
+ if (ret < 0)
+ return ret;
+
+ if (num_vfs > pci_sriov_get_totalvfs(pdev))
+ return -ERANGE;
+
+ device_lock(&pdev->dev);
+
+ if (num_vfs == pdev->sriov->num_VFs)
+ goto exit;
+
+ /* is PF driver loaded w/callback */
+ if (!pdev->driver || !pdev->driver->sriov_configure) {
+ pci_info(pdev, "Driver does not support SRIOV configuration via sysfs\n");
+ ret = -ENOENT;
+ goto exit;
+ }
+
+ if (num_vfs == 0) {
+ /* disable VFs */
+ ret = pdev->driver->sriov_configure(pdev, 0);
+ goto exit;
+ }
+
+ /* enable VFs */
+ if (pdev->sriov->num_VFs) {
+ pci_warn(pdev, "%d VFs already enabled. Disable before enabling %d VFs\n",
+ pdev->sriov->num_VFs, num_vfs);
+ ret = -EBUSY;
+ goto exit;
+ }
+
+ ret = pdev->driver->sriov_configure(pdev, num_vfs);
+ if (ret < 0)
+ goto exit;
+
+ if (ret != num_vfs)
+ pci_warn(pdev, "%d VFs requested; only %d enabled\n",
+ num_vfs, ret);
+
+exit:
+ device_unlock(&pdev->dev);
+
+ if (ret < 0)
+ return ret;
+
+ return count;
+}
+
+static ssize_t sriov_offset_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->offset);
+}
+
+static ssize_t sriov_stride_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->stride);
+}
+
+static ssize_t sriov_vf_device_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%x\n", pdev->sriov->vf_device);
+}
+
+static ssize_t sriov_drivers_autoprobe_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->drivers_autoprobe);
+}
+
+static ssize_t sriov_drivers_autoprobe_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ bool drivers_autoprobe;
+
+ if (kstrtobool(buf, &drivers_autoprobe) < 0)
+ return -EINVAL;
+
+ pdev->sriov->drivers_autoprobe = drivers_autoprobe;
+
+ return count;
+}
+
+static DEVICE_ATTR_RO(sriov_totalvfs);
+static DEVICE_ATTR(sriov_numvfs, 0664, sriov_numvfs_show, sriov_numvfs_store);
+static DEVICE_ATTR_RO(sriov_offset);
+static DEVICE_ATTR_RO(sriov_stride);
+static DEVICE_ATTR_RO(sriov_vf_device);
+static DEVICE_ATTR(sriov_drivers_autoprobe, 0664, sriov_drivers_autoprobe_show,
+ sriov_drivers_autoprobe_store);
+
+static struct attribute *sriov_dev_attrs[] = {
+ &dev_attr_sriov_totalvfs.attr,
+ &dev_attr_sriov_numvfs.attr,
+ &dev_attr_sriov_offset.attr,
+ &dev_attr_sriov_stride.attr,
+ &dev_attr_sriov_vf_device.attr,
+ &dev_attr_sriov_drivers_autoprobe.attr,
+ NULL,
+};
+
+static umode_t sriov_attrs_are_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = kobj_to_dev(kobj);
+
+ if (!dev_is_pf(dev))
+ return 0;
+
+ return a->mode;
+}
+
+const struct attribute_group sriov_dev_attr_group = {
+ .attrs = sriov_dev_attrs,
+ .is_visible = sriov_attrs_are_visible,
+};
+
int __weak pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
{
return 0;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 5bb301efec98..868e35109284 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -548,151 +548,6 @@ static ssize_t devspec_show(struct device *dev,
static DEVICE_ATTR_RO(devspec);
#endif
-#ifdef CONFIG_PCI_IOV
-static ssize_t sriov_totalvfs_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
-}
-
-
-static ssize_t sriov_numvfs_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
-}
-
-/*
- * num_vfs > 0; number of VFs to enable
- * num_vfs = 0; disable all VFs
- *
- * Note: SRIOV spec doesn't allow partial VF
- * disable, so it's all or none.
- */
-static ssize_t sriov_numvfs_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- int ret;
- u16 num_vfs;
-
- ret = kstrtou16(buf, 0, &num_vfs);
- if (ret < 0)
- return ret;
-
- if (num_vfs > pci_sriov_get_totalvfs(pdev))
- return -ERANGE;
-
- device_lock(&pdev->dev);
-
- if (num_vfs == pdev->sriov->num_VFs)
- goto exit;
-
- /* is PF driver loaded w/callback */
- if (!pdev->driver || !pdev->driver->sriov_configure) {
- pci_info(pdev, "Driver doesn't support SRIOV configuration via sysfs\n");
- ret = -ENOENT;
- goto exit;
- }
-
- if (num_vfs == 0) {
- /* disable VFs */
- ret = pdev->driver->sriov_configure(pdev, 0);
- goto exit;
- }
-
- /* enable VFs */
- if (pdev->sriov->num_VFs) {
- pci_warn(pdev, "%d VFs already enabled. Disable before enabling %d VFs\n",
- pdev->sriov->num_VFs, num_vfs);
- ret = -EBUSY;
- goto exit;
- }
-
- ret = pdev->driver->sriov_configure(pdev, num_vfs);
- if (ret < 0)
- goto exit;
-
- if (ret != num_vfs)
- pci_warn(pdev, "%d VFs requested; only %d enabled\n",
- num_vfs, ret);
-
-exit:
- device_unlock(&pdev->dev);
-
- if (ret < 0)
- return ret;
-
- return count;
-}
-
-static ssize_t sriov_offset_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->offset);
-}
-
-static ssize_t sriov_stride_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->stride);
-}
-
-static ssize_t sriov_vf_device_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%x\n", pdev->sriov->vf_device);
-}
-
-static ssize_t sriov_drivers_autoprobe_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->drivers_autoprobe);
-}
-
-static ssize_t sriov_drivers_autoprobe_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- bool drivers_autoprobe;
-
- if (kstrtobool(buf, &drivers_autoprobe) < 0)
- return -EINVAL;
-
- pdev->sriov->drivers_autoprobe = drivers_autoprobe;
-
- return count;
-}
-
-static DEVICE_ATTR_RO(sriov_totalvfs);
-static DEVICE_ATTR(sriov_numvfs, 0664, sriov_numvfs_show, sriov_numvfs_store);
-static DEVICE_ATTR_RO(sriov_offset);
-static DEVICE_ATTR_RO(sriov_stride);
-static DEVICE_ATTR_RO(sriov_vf_device);
-static DEVICE_ATTR(sriov_drivers_autoprobe, 0664, sriov_drivers_autoprobe_show,
- sriov_drivers_autoprobe_store);
-#endif /* CONFIG_PCI_IOV */
-
static ssize_t driver_override_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -1691,34 +1546,6 @@ static const struct attribute_group pci_dev_hp_attr_group = {
.is_visible = pci_dev_hp_attrs_are_visible,
};
-#ifdef CONFIG_PCI_IOV
-static struct attribute *sriov_dev_attrs[] = {
- &dev_attr_sriov_totalvfs.attr,
- &dev_attr_sriov_numvfs.attr,
- &dev_attr_sriov_offset.attr,
- &dev_attr_sriov_stride.attr,
- &dev_attr_sriov_vf_device.attr,
- &dev_attr_sriov_drivers_autoprobe.attr,
- NULL,
-};
-
-static umode_t sriov_attrs_are_visible(struct kobject *kobj,
- struct attribute *a, int n)
-{
- struct device *dev = kobj_to_dev(kobj);
-
- if (!dev_is_pf(dev))
- return 0;
-
- return a->mode;
-}
-
-static const struct attribute_group sriov_dev_attr_group = {
- .attrs = sriov_dev_attrs,
- .is_visible = sriov_attrs_are_visible,
-};
-#endif /* CONFIG_PCI_IOV */
-
static const struct attribute_group pci_dev_attr_group = {
.attrs = pci_dev_dev_attrs,
.is_visible = pci_dev_attrs_are_visible,
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 61bbfd611140..7e3c6c8ae6f9 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -455,7 +455,7 @@ void pci_iov_update_resource(struct pci_dev *dev, int resno);
resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
void pci_restore_iov_state(struct pci_dev *dev);
int pci_iov_bus_range(struct pci_bus *bus);
-
+extern const struct attribute_group sriov_dev_attr_group;
#else
static inline int pci_iov_init(struct pci_dev *dev)
{
--
2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: skunberg.kelsey@gmail.com (Kelsey Skunberg)
Subject: [Linux-kernel-mentees] [PATCH v3 4/4] PCI/IOV: Move sysfs SR-IOV functions to iov.c
Date: Thu, 15 Aug 2019 09:33:53 -0600 [thread overview]
Message-ID: <20190815153352.86143-5-skunberg.kelsey@gmail.com> (raw)
Message-ID: <20190815153353.4HMwoixNwqOC0rjhwfpDslhTZBmytBDqyoyrW4ZLF9E@z> (raw)
In-Reply-To: <20190813204513.4790-1-skunberg.kelsey@gmail.com>
The sysfs SR-IOV functions are for an optional feature and will be better
organized to keep with the feature's code. Move the sysfs SR-IOV functions
to /pci/iov.c.
Signed-off-by: Kelsey Skunberg <skunberg.kelsey at gmail.com>
---
drivers/pci/iov.c | 168 ++++++++++++++++++++++++++++++++++++++
drivers/pci/pci-sysfs.c | 173 ----------------------------------------
drivers/pci/pci.h | 2 +-
3 files changed, 169 insertions(+), 174 deletions(-)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 9b48818ced01..b335db21c85e 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -240,6 +240,174 @@ void pci_iov_remove_virtfn(struct pci_dev *dev, int id)
pci_dev_put(dev);
}
+static ssize_t sriov_totalvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
+}
+
+static ssize_t sriov_numvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
+}
+
+/*
+ * num_vfs > 0; number of VFs to enable
+ * num_vfs = 0; disable all VFs
+ *
+ * Note: SRIOV spec does not allow partial VF
+ * disable, so it's all or none.
+ */
+static ssize_t sriov_numvfs_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int ret;
+ u16 num_vfs;
+
+ ret = kstrtou16(buf, 0, &num_vfs);
+ if (ret < 0)
+ return ret;
+
+ if (num_vfs > pci_sriov_get_totalvfs(pdev))
+ return -ERANGE;
+
+ device_lock(&pdev->dev);
+
+ if (num_vfs == pdev->sriov->num_VFs)
+ goto exit;
+
+ /* is PF driver loaded w/callback */
+ if (!pdev->driver || !pdev->driver->sriov_configure) {
+ pci_info(pdev, "Driver does not support SRIOV configuration via sysfs\n");
+ ret = -ENOENT;
+ goto exit;
+ }
+
+ if (num_vfs == 0) {
+ /* disable VFs */
+ ret = pdev->driver->sriov_configure(pdev, 0);
+ goto exit;
+ }
+
+ /* enable VFs */
+ if (pdev->sriov->num_VFs) {
+ pci_warn(pdev, "%d VFs already enabled. Disable before enabling %d VFs\n",
+ pdev->sriov->num_VFs, num_vfs);
+ ret = -EBUSY;
+ goto exit;
+ }
+
+ ret = pdev->driver->sriov_configure(pdev, num_vfs);
+ if (ret < 0)
+ goto exit;
+
+ if (ret != num_vfs)
+ pci_warn(pdev, "%d VFs requested; only %d enabled\n",
+ num_vfs, ret);
+
+exit:
+ device_unlock(&pdev->dev);
+
+ if (ret < 0)
+ return ret;
+
+ return count;
+}
+
+static ssize_t sriov_offset_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->offset);
+}
+
+static ssize_t sriov_stride_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->stride);
+}
+
+static ssize_t sriov_vf_device_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%x\n", pdev->sriov->vf_device);
+}
+
+static ssize_t sriov_drivers_autoprobe_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->drivers_autoprobe);
+}
+
+static ssize_t sriov_drivers_autoprobe_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ bool drivers_autoprobe;
+
+ if (kstrtobool(buf, &drivers_autoprobe) < 0)
+ return -EINVAL;
+
+ pdev->sriov->drivers_autoprobe = drivers_autoprobe;
+
+ return count;
+}
+
+static DEVICE_ATTR_RO(sriov_totalvfs);
+static DEVICE_ATTR(sriov_numvfs, 0664, sriov_numvfs_show, sriov_numvfs_store);
+static DEVICE_ATTR_RO(sriov_offset);
+static DEVICE_ATTR_RO(sriov_stride);
+static DEVICE_ATTR_RO(sriov_vf_device);
+static DEVICE_ATTR(sriov_drivers_autoprobe, 0664, sriov_drivers_autoprobe_show,
+ sriov_drivers_autoprobe_store);
+
+static struct attribute *sriov_dev_attrs[] = {
+ &dev_attr_sriov_totalvfs.attr,
+ &dev_attr_sriov_numvfs.attr,
+ &dev_attr_sriov_offset.attr,
+ &dev_attr_sriov_stride.attr,
+ &dev_attr_sriov_vf_device.attr,
+ &dev_attr_sriov_drivers_autoprobe.attr,
+ NULL,
+};
+
+static umode_t sriov_attrs_are_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = kobj_to_dev(kobj);
+
+ if (!dev_is_pf(dev))
+ return 0;
+
+ return a->mode;
+}
+
+const struct attribute_group sriov_dev_attr_group = {
+ .attrs = sriov_dev_attrs,
+ .is_visible = sriov_attrs_are_visible,
+};
+
int __weak pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
{
return 0;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 5bb301efec98..868e35109284 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -548,151 +548,6 @@ static ssize_t devspec_show(struct device *dev,
static DEVICE_ATTR_RO(devspec);
#endif
-#ifdef CONFIG_PCI_IOV
-static ssize_t sriov_totalvfs_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
-}
-
-
-static ssize_t sriov_numvfs_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
-}
-
-/*
- * num_vfs > 0; number of VFs to enable
- * num_vfs = 0; disable all VFs
- *
- * Note: SRIOV spec doesn't allow partial VF
- * disable, so it's all or none.
- */
-static ssize_t sriov_numvfs_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- int ret;
- u16 num_vfs;
-
- ret = kstrtou16(buf, 0, &num_vfs);
- if (ret < 0)
- return ret;
-
- if (num_vfs > pci_sriov_get_totalvfs(pdev))
- return -ERANGE;
-
- device_lock(&pdev->dev);
-
- if (num_vfs == pdev->sriov->num_VFs)
- goto exit;
-
- /* is PF driver loaded w/callback */
- if (!pdev->driver || !pdev->driver->sriov_configure) {
- pci_info(pdev, "Driver doesn't support SRIOV configuration via sysfs\n");
- ret = -ENOENT;
- goto exit;
- }
-
- if (num_vfs == 0) {
- /* disable VFs */
- ret = pdev->driver->sriov_configure(pdev, 0);
- goto exit;
- }
-
- /* enable VFs */
- if (pdev->sriov->num_VFs) {
- pci_warn(pdev, "%d VFs already enabled. Disable before enabling %d VFs\n",
- pdev->sriov->num_VFs, num_vfs);
- ret = -EBUSY;
- goto exit;
- }
-
- ret = pdev->driver->sriov_configure(pdev, num_vfs);
- if (ret < 0)
- goto exit;
-
- if (ret != num_vfs)
- pci_warn(pdev, "%d VFs requested; only %d enabled\n",
- num_vfs, ret);
-
-exit:
- device_unlock(&pdev->dev);
-
- if (ret < 0)
- return ret;
-
- return count;
-}
-
-static ssize_t sriov_offset_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->offset);
-}
-
-static ssize_t sriov_stride_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->stride);
-}
-
-static ssize_t sriov_vf_device_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%x\n", pdev->sriov->vf_device);
-}
-
-static ssize_t sriov_drivers_autoprobe_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- return sprintf(buf, "%u\n", pdev->sriov->drivers_autoprobe);
-}
-
-static ssize_t sriov_drivers_autoprobe_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- bool drivers_autoprobe;
-
- if (kstrtobool(buf, &drivers_autoprobe) < 0)
- return -EINVAL;
-
- pdev->sriov->drivers_autoprobe = drivers_autoprobe;
-
- return count;
-}
-
-static DEVICE_ATTR_RO(sriov_totalvfs);
-static DEVICE_ATTR(sriov_numvfs, 0664, sriov_numvfs_show, sriov_numvfs_store);
-static DEVICE_ATTR_RO(sriov_offset);
-static DEVICE_ATTR_RO(sriov_stride);
-static DEVICE_ATTR_RO(sriov_vf_device);
-static DEVICE_ATTR(sriov_drivers_autoprobe, 0664, sriov_drivers_autoprobe_show,
- sriov_drivers_autoprobe_store);
-#endif /* CONFIG_PCI_IOV */
-
static ssize_t driver_override_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -1691,34 +1546,6 @@ static const struct attribute_group pci_dev_hp_attr_group = {
.is_visible = pci_dev_hp_attrs_are_visible,
};
-#ifdef CONFIG_PCI_IOV
-static struct attribute *sriov_dev_attrs[] = {
- &dev_attr_sriov_totalvfs.attr,
- &dev_attr_sriov_numvfs.attr,
- &dev_attr_sriov_offset.attr,
- &dev_attr_sriov_stride.attr,
- &dev_attr_sriov_vf_device.attr,
- &dev_attr_sriov_drivers_autoprobe.attr,
- NULL,
-};
-
-static umode_t sriov_attrs_are_visible(struct kobject *kobj,
- struct attribute *a, int n)
-{
- struct device *dev = kobj_to_dev(kobj);
-
- if (!dev_is_pf(dev))
- return 0;
-
- return a->mode;
-}
-
-static const struct attribute_group sriov_dev_attr_group = {
- .attrs = sriov_dev_attrs,
- .is_visible = sriov_attrs_are_visible,
-};
-#endif /* CONFIG_PCI_IOV */
-
static const struct attribute_group pci_dev_attr_group = {
.attrs = pci_dev_dev_attrs,
.is_visible = pci_dev_attrs_are_visible,
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 61bbfd611140..7e3c6c8ae6f9 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -455,7 +455,7 @@ void pci_iov_update_resource(struct pci_dev *dev, int resno);
resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
void pci_restore_iov_state(struct pci_dev *dev);
int pci_iov_bus_range(struct pci_bus *bus);
-
+extern const struct attribute_group sriov_dev_attr_group;
#else
static inline int pci_iov_init(struct pci_dev *dev)
{
--
2.20.1
next prev parent reply other threads:[~2019-08-15 15:37 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-09 19:57 [PATCH] PCI/IOV: Move sysfs SR-IOV functions to iov.c Kelsey Skunberg
2019-08-09 19:57 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-09 19:57 ` skunberg.kelsey
2019-08-10 7:17 ` Greg KH
2019-08-10 7:17 ` Greg KH
2019-08-10 7:17 ` greg
2019-08-10 17:15 ` Bjorn Helgaas
2019-08-10 17:15 ` Bjorn Helgaas
2019-08-10 17:15 ` helgaas
2019-08-10 17:24 ` Greg KH
2019-08-10 17:24 ` Greg KH
2019-08-10 17:24 ` greg
2019-08-10 21:32 ` Kelsey Skunberg
2019-08-10 21:32 ` Kelsey Skunberg
2019-08-10 21:32 ` skunberg.kelsey
2019-08-13 20:45 ` [PATCH v2 0/3] PCI: pci-sysfs.c cleanup Kelsey Skunberg
2019-08-13 20:45 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-13 20:45 ` skunberg.kelsey
2019-08-13 20:45 ` [PATCH v2 1/3] PCI: sysfs: Define device attributes with DEVICE_ATTR*() Kelsey Skunberg
2019-08-13 20:45 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-13 20:45 ` skunberg.kelsey
2019-08-14 7:52 ` Greg KH
2019-08-14 7:52 ` Greg KH
2019-08-14 7:52 ` gregkh
2019-08-14 23:14 ` Kelsey Skunberg
2019-08-14 23:14 ` Kelsey Skunberg
2019-08-14 23:14 ` skunberg.kelsey
2019-08-15 15:54 ` Kelsey Skunberg
2019-08-15 15:54 ` Kelsey Skunberg
2019-08-15 15:54 ` skunberg.kelsey
2019-08-13 20:45 ` [PATCH v2 2/3] PCI: sysfs: Change permissions from symbolic to octal Kelsey Skunberg
2019-08-13 20:45 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-13 20:45 ` skunberg.kelsey
2019-08-14 5:38 ` Bjorn Helgaas
2019-08-14 5:38 ` Bjorn Helgaas
2019-08-14 5:38 ` helgaas
2019-08-14 7:53 ` Greg Kroah-Hartman
2019-08-14 7:53 ` Greg Kroah-Hartman
2019-08-14 7:53 ` gregkh
2019-08-15 14:37 ` Don Dutile
2019-08-15 14:37 ` Don Dutile
2019-08-15 14:37 ` ddutile
2019-09-04 6:22 ` Kelsey Skunberg
2019-09-04 6:22 ` Kelsey Skunberg
2019-09-04 6:22 ` skunberg.kelsey
2019-09-04 15:32 ` Don Dutile
2019-09-04 15:32 ` Don Dutile
2019-09-04 15:32 ` ddutile
2019-09-04 18:33 ` Don Dutile
2019-09-04 18:33 ` Don Dutile
2019-09-04 18:33 ` ddutile
2019-09-05 4:04 ` Kelsey Skunberg
2019-09-05 4:04 ` Kelsey Skunberg
2019-09-05 4:04 ` skunberg.kelsey
2019-08-13 20:45 ` [PATCH v2 3/3] PCI/IOV: Move sysfs SR-IOV functions to iov.c Kelsey Skunberg
2019-08-13 20:45 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-13 20:45 ` skunberg.kelsey
2019-08-14 5:40 ` [Linux-kernel-mentees] [PATCH v2 0/3] PCI: pci-sysfs.c cleanup Bjorn Helgaas
2019-08-14 5:40 ` Bjorn Helgaas
2019-08-14 5:40 ` helgaas
2019-08-15 15:33 ` [PATCH v3 0/4] PCI: Clean up pci-sysfs.c Kelsey Skunberg
2019-08-15 15:33 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-15 15:33 ` skunberg.kelsey
2019-08-15 16:08 ` Greg KH
2019-08-15 16:08 ` [Linux-kernel-mentees] " Greg KH
2019-08-15 16:08 ` gregkh
2019-08-16 4:22 ` Don Dutile
2019-08-16 4:22 ` [Linux-kernel-mentees] " Don Dutile
2019-08-16 4:22 ` ddutile
2019-08-19 22:42 ` Bjorn Helgaas
2019-08-19 22:42 ` Bjorn Helgaas
2019-08-19 22:42 ` helgaas
2019-08-15 15:33 ` [PATCH v3 1/4] PCI: sysfs: Define device attributes with DEVICE_ATTR* Kelsey Skunberg
2019-08-15 15:33 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-15 15:33 ` skunberg.kelsey
2020-03-14 10:51 ` Ruslan Bilovol
2020-03-14 10:51 ` [Linux-kernel-mentees] " Ruslan Bilovol
2020-03-14 11:20 ` Greg Kroah-Hartman
2020-03-14 11:20 ` [Linux-kernel-mentees] " Greg Kroah-Hartman
2020-03-24 6:10 ` Kelsey
2020-03-24 6:10 ` [Linux-kernel-mentees] " Kelsey
2020-03-24 6:24 ` Greg Kroah-Hartman
2020-03-24 6:24 ` [Linux-kernel-mentees] " Greg Kroah-Hartman
2020-03-24 23:53 ` Kelsey
2020-03-24 23:53 ` [Linux-kernel-mentees] " Kelsey
2020-03-25 7:17 ` Greg Kroah-Hartman
2020-03-25 7:17 ` [Linux-kernel-mentees] " Greg Kroah-Hartman
2020-03-25 15:15 ` Kelsey
2020-03-25 15:15 ` [Linux-kernel-mentees] " Kelsey
2019-08-15 15:33 ` [PATCH v3 2/4] PCI: sysfs: Change permissions from symbolic to octal Kelsey Skunberg
2019-08-15 15:33 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-15 15:33 ` skunberg.kelsey
2019-08-15 15:33 ` [PATCH v3 3/4] PCI: sysfs: Change DEVICE_ATTR() to DEVICE_ATTR_WO() Kelsey Skunberg
2019-08-15 15:33 ` [Linux-kernel-mentees] " Kelsey Skunberg
2019-08-15 15:33 ` skunberg.kelsey
2019-08-15 15:33 ` Kelsey Skunberg [this message]
2019-08-15 15:33 ` [Linux-kernel-mentees] [PATCH v3 4/4] PCI/IOV: Move sysfs SR-IOV functions to iov.c Kelsey Skunberg
2019-08-15 15:33 ` skunberg.kelsey
2019-08-15 17:34 ` sathyanarayanan kuppuswamy
2019-08-15 17:34 ` [Linux-kernel-mentees] " sathyanarayanan kuppuswamy
2019-08-15 17:34 ` sathyanarayanan.kuppuswamy
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