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author | Bjorn Helgaas <bhelgaas@google.com> | 2012-11-10 04:27:53 +0100 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-11-10 05:38:53 +0100 |
commit | 6b136724691a6f247ada0c6a5f02370ed46de9f4 (patch) | |
tree | d4bbf2c49f97c98ca2b5d6cdc4f80ad5aea1e190 /drivers/pci/iov.c | |
parent | PCI: Provide method to reduce the number of total VFs supported (diff) | |
download | linux-6b136724691a6f247ada0c6a5f02370ed46de9f4.tar.xz linux-6b136724691a6f247ada0c6a5f02370ed46de9f4.zip |
PCI: Use spec names for SR-IOV capability fields
Use the same names (almost) as the spec for TotalVFs, InitialVFs, NumVFs.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/iov.c')
-rw-r--r-- | drivers/pci/iov.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index f6781e42d00d..a32bd9ad0931 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -106,7 +106,7 @@ static int virtfn_add(struct pci_dev *dev, int id, int reset) virtfn->resource[i].name = pci_name(virtfn); virtfn->resource[i].flags = res->flags; size = resource_size(res); - do_div(size, iov->total); + do_div(size, iov->total_VFs); virtfn->resource[i].start = res->start + size * id; virtfn->resource[i].end = virtfn->resource[i].start + size - 1; rc = request_resource(res, &virtfn->resource[i]); @@ -194,7 +194,7 @@ static int sriov_migration(struct pci_dev *dev) u16 status; struct pci_sriov *iov = dev->sriov; - if (!iov->nr_virtfn) + if (!iov->num_VFs) return 0; if (!(iov->cap & PCI_SRIOV_CAP_VFM)) @@ -216,7 +216,7 @@ static void sriov_migration_task(struct work_struct *work) u16 status; struct pci_sriov *iov = container_of(work, struct pci_sriov, mtask); - for (i = iov->initial; i < iov->nr_virtfn; i++) { + for (i = iov->initial_VFs; i < iov->num_VFs; i++) { state = readb(iov->mstate + i); if (state == PCI_SRIOV_VFM_MI) { writeb(PCI_SRIOV_VFM_AV, iov->mstate + i); @@ -244,7 +244,7 @@ static int sriov_enable_migration(struct pci_dev *dev, int nr_virtfn) resource_size_t pa; struct pci_sriov *iov = dev->sriov; - if (nr_virtfn <= iov->initial) + if (nr_virtfn <= iov->initial_VFs) return 0; pci_read_config_dword(dev, iov->pos + PCI_SRIOV_VFM, &table); @@ -294,15 +294,15 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) if (!nr_virtfn) return 0; - if (iov->nr_virtfn) + if (iov->num_VFs) return -EINVAL; pci_read_config_word(dev, iov->pos + PCI_SRIOV_INITIAL_VF, &initial); - if (initial > iov->total || - (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total))) + if (initial > iov->total_VFs || + (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total_VFs))) return -EIO; - if (nr_virtfn < 0 || nr_virtfn > iov->total || + if (nr_virtfn < 0 || nr_virtfn > iov->total_VFs || (!(iov->cap & PCI_SRIOV_CAP_VFM) && (nr_virtfn > initial))) return -EINVAL; @@ -359,7 +359,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) msleep(100); pci_cfg_access_unlock(dev); - iov->initial = initial; + iov->initial_VFs = initial; if (nr_virtfn < initial) initial = nr_virtfn; @@ -376,7 +376,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) } kobject_uevent(&dev->dev.kobj, KOBJ_CHANGE); - iov->nr_virtfn = nr_virtfn; + iov->num_VFs = nr_virtfn; return 0; @@ -401,13 +401,13 @@ static void sriov_disable(struct pci_dev *dev) int i; struct pci_sriov *iov = dev->sriov; - if (!iov->nr_virtfn) + if (!iov->num_VFs) return; if (iov->cap & PCI_SRIOV_CAP_VFM) sriov_disable_migration(dev); - for (i = 0; i < iov->nr_virtfn; i++) + for (i = 0; i < iov->num_VFs; i++) virtfn_remove(dev, i, 0); iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE); @@ -419,7 +419,7 @@ static void sriov_disable(struct pci_dev *dev) if (iov->link != dev->devfn) sysfs_remove_link(&dev->dev.kobj, "dep_link"); - iov->nr_virtfn = 0; + iov->num_VFs = 0; } static int sriov_init(struct pci_dev *dev, int pos) @@ -496,7 +496,7 @@ found: iov->pos = pos; iov->nres = nres; iov->ctrl = ctrl; - iov->total = total; + iov->total_VFs = total; iov->offset = offset; iov->stride = stride; iov->pgsz = pgsz; @@ -529,7 +529,7 @@ failed: static void sriov_release(struct pci_dev *dev) { - BUG_ON(dev->sriov->nr_virtfn); + BUG_ON(dev->sriov->num_VFs); if (dev != dev->sriov->dev) pci_dev_put(dev->sriov->dev); @@ -554,7 +554,7 @@ static void sriov_restore_state(struct pci_dev *dev) pci_update_resource(dev, i); pci_write_config_dword(dev, iov->pos + PCI_SRIOV_SYS_PGSIZE, iov->pgsz); - pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, iov->nr_virtfn); + pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, iov->num_VFs); pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl); if (iov->ctrl & PCI_SRIOV_CTRL_VFE) msleep(100); @@ -661,7 +661,7 @@ int pci_iov_bus_range(struct pci_bus *bus) list_for_each_entry(dev, &bus->devices, bus_list) { if (!dev->is_physfn) continue; - busnr = virtfn_bus(dev, dev->sriov->total - 1); + busnr = virtfn_bus(dev, dev->sriov->total_VFs - 1); if (busnr > max) max = busnr; } @@ -732,7 +732,7 @@ int pci_num_vf(struct pci_dev *dev) if (!dev || !dev->is_physfn) return 0; else - return dev->sriov->nr_virtfn; + return dev->sriov->num_VFs; } EXPORT_SYMBOL_GPL(pci_num_vf); @@ -750,14 +750,14 @@ EXPORT_SYMBOL_GPL(pci_num_vf); */ int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs) { - if (!dev || !dev->is_physfn || (numvfs > dev->sriov->total)) + if (!dev || !dev->is_physfn || (numvfs > dev->sriov->total_VFs)) return -EINVAL; /* Shouldn't change if VFs already enabled */ if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE) return -EBUSY; else - dev->sriov->drvttl = numvfs; + dev->sriov->driver_max_VFs = numvfs; return 0; } @@ -768,7 +768,7 @@ EXPORT_SYMBOL_GPL(pci_sriov_set_totalvfs); * @dev: the PCI PF device * * For a PCIe device with SRIOV support, return the PCIe - * SRIOV capability value of TotalVFs or the value of drvttl + * SRIOV capability value of TotalVFs or the value of driver_max_VFs * if the driver reduced it. Otherwise, -EINVAL. */ int pci_sriov_get_totalvfs(struct pci_dev *dev) @@ -776,9 +776,9 @@ int pci_sriov_get_totalvfs(struct pci_dev *dev) if (!dev || !dev->is_physfn) return -EINVAL; - if (dev->sriov->drvttl) - return dev->sriov->drvttl; + if (dev->sriov->driver_max_VFs) + return dev->sriov->driver_max_VFs; else - return dev->sriov->total; + return dev->sriov->total_VFs; } EXPORT_SYMBOL_GPL(pci_sriov_get_totalvfs); |