diff options
author | Tadeusz Struk <tadeusz.struk@intel.com> | 2015-08-07 18:34:25 (GMT) |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-08-10 15:20:16 (GMT) |
commit | ed8ccaef52fa03fb03cff45b380f72c9f869f273 (patch) | |
tree | 5167f1c5a30a07783ce623b82af46ac5dce8fff5 /drivers/crypto/qat/qat_dh895xcc/adf_drv.c | |
parent | a57331394cf5228555dbf4bca21abb2fc1597f04 (diff) | |
download | linux-ed8ccaef52fa03fb03cff45b380f72c9f869f273.tar.xz |
crypto: qat - Add support for SRIOV
Add code that enables SRIOV on dh895xcc devices.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/qat/qat_dh895xcc/adf_drv.c')
-rw-r--r-- | drivers/crypto/qat/qat_dh895xcc/adf_drv.c | 80 |
1 files changed, 50 insertions, 30 deletions
diff --git a/drivers/crypto/qat/qat_dh895xcc/adf_drv.c b/drivers/crypto/qat/qat_dh895xcc/adf_drv.c index 1837c32..f8dd14f 100644 --- a/drivers/crypto/qat/qat_dh895xcc/adf_drv.c +++ b/drivers/crypto/qat/qat_dh895xcc/adf_drv.c @@ -82,16 +82,21 @@ static struct pci_driver adf_driver = { .id_table = adf_pci_tbl, .name = adf_driver_name, .probe = adf_probe, - .remove = adf_remove + .remove = adf_remove, + .sriov_configure = adf_sriov_configure, }; +static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev) +{ + pci_release_regions(accel_dev->accel_pci_dev.pci_dev); + pci_disable_device(accel_dev->accel_pci_dev.pci_dev); +} + static void adf_cleanup_accel(struct adf_accel_dev *accel_dev) { struct adf_accel_pci *accel_pci_dev = &accel_dev->accel_pci_dev; int i; - adf_dev_shutdown(accel_dev); - for (i = 0; i < ADF_PCI_MAX_BARS; i++) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i]; @@ -108,13 +113,11 @@ static void adf_cleanup_accel(struct adf_accel_dev *accel_dev) break; } kfree(accel_dev->hw_device); + accel_dev->hw_device = NULL; } adf_cfg_dev_remove(accel_dev); debugfs_remove(accel_dev->debugfs_dir); - adf_devmgr_rm_dev(accel_dev); - pci_release_regions(accel_pci_dev->pci_dev); - pci_disable_device(accel_pci_dev->pci_dev); - kfree(accel_dev); + adf_devmgr_rm_dev(accel_dev, NULL); } static int adf_dev_configure(struct adf_accel_dev *accel_dev) @@ -205,7 +208,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; - int ret; + int ret, bar_mask; switch (ent->device) { case ADF_DH895XCC_PCI_DEVICE_ID: @@ -229,10 +232,12 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENOMEM; INIT_LIST_HEAD(&accel_dev->crypto_list); + accel_pci_dev = &accel_dev->accel_pci_dev; + accel_pci_dev->pci_dev = pdev; /* Add accel device to accel table. * This should be called before adf_cleanup_accel is called */ - if (adf_devmgr_add_dev(accel_dev)) { + if (adf_devmgr_add_dev(accel_dev, NULL)) { dev_err(&pdev->dev, "Failed to add new accelerator device.\n"); kfree(accel_dev); return -EFAULT; @@ -255,7 +260,6 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) default: return -ENODEV; } - accel_pci_dev = &accel_dev->accel_pci_dev; pci_read_config_byte(pdev, PCI_REVISION_ID, &accel_pci_dev->revid); pci_read_config_dword(pdev, ADF_DH895XCC_FUSECTL_OFFSET, &hw_data->fuses); @@ -264,7 +268,6 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) hw_data->accel_mask = hw_data->get_accel_mask(hw_data->fuses); hw_data->ae_mask = hw_data->get_ae_mask(hw_data->fuses); accel_pci_dev->sku = hw_data->get_sku(hw_data); - accel_pci_dev->pci_dev = pdev; /* If the device has no acceleration engines then ignore it. */ if (!hw_data->accel_mask || !hw_data->ae_mask || ((~hw_data->ae_mask) & 0x01)) { @@ -274,11 +277,14 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } /* Create dev top level debugfs entry */ - snprintf(name, sizeof(name), "%s%s_dev%d", ADF_DEVICE_NAME_PREFIX, - hw_data->dev_class->name, hw_data->instance_id); + snprintf(name, sizeof(name), "%s%s_%02x:%02d.%02d", + ADF_DEVICE_NAME_PREFIX, hw_data->dev_class->name, + pdev->bus->number, PCI_SLOT(pdev->devfn), + PCI_FUNC(pdev->devfn)); + accel_dev->debugfs_dir = debugfs_create_dir(name, NULL); if (!accel_dev->debugfs_dir) { - dev_err(&pdev->dev, "Could not create debugfs dir\n"); + dev_err(&pdev->dev, "Could not create debugfs dir %s\n", name); ret = -EINVAL; goto out_err; } @@ -301,7 +307,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) { dev_err(&pdev->dev, "No usable DMA configuration\n"); ret = -EFAULT; - goto out_err; + goto out_err_disable; } else { pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); } @@ -312,7 +318,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (pci_request_regions(pdev, adf_driver_name)) { ret = -EFAULT; - goto out_err; + goto out_err_disable; } /* Read accelerator capabilities mask */ @@ -320,19 +326,21 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) &hw_data->accel_capabilities_mask); /* Find and map all the device's BARS */ - for (i = 0; i < ADF_PCI_MAX_BARS; i++) { - struct adf_bar *bar = &accel_pci_dev->pci_bars[i]; + i = 0; + bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); + for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask, + ADF_PCI_MAX_BARS * 2) { + struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; - bar_nr = i * 2; bar->base_addr = pci_resource_start(pdev, bar_nr); if (!bar->base_addr) break; bar->size = pci_resource_len(pdev, bar_nr); bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0); if (!bar->virt_addr) { - dev_err(&pdev->dev, "Failed to map BAR %d\n", i); + dev_err(&pdev->dev, "Failed to map BAR %d\n", bar_nr); ret = -EFAULT; - goto out_err; + goto out_err_free_reg; } } pci_set_master(pdev); @@ -340,32 +348,40 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (adf_enable_aer(accel_dev, &adf_driver)) { dev_err(&pdev->dev, "Failed to enable aer\n"); ret = -EFAULT; - goto out_err; + goto out_err_free_reg; } if (pci_save_state(pdev)) { dev_err(&pdev->dev, "Failed to save pci state\n"); ret = -ENOMEM; - goto out_err; + goto out_err_free_reg; } ret = adf_dev_configure(accel_dev); if (ret) - goto out_err; + goto out_err_free_reg; ret = adf_dev_init(accel_dev); if (ret) - goto out_err; + goto out_err_dev_shutdown; ret = adf_dev_start(accel_dev); - if (ret) { - adf_dev_stop(accel_dev); - goto out_err; - } + if (ret) + goto out_err_dev_stop; - return 0; + return ret; + +out_err_dev_stop: + adf_dev_stop(accel_dev); +out_err_dev_shutdown: + adf_dev_shutdown(accel_dev); +out_err_free_reg: + pci_release_regions(accel_pci_dev->pci_dev); +out_err_disable: + pci_disable_device(accel_pci_dev->pci_dev); out_err: adf_cleanup_accel(accel_dev); + kfree(accel_dev); return ret; } @@ -379,8 +395,12 @@ static void adf_remove(struct pci_dev *pdev) } if (adf_dev_stop(accel_dev)) dev_err(&GET_DEV(accel_dev), "Failed to stop QAT accel dev\n"); + + adf_dev_shutdown(accel_dev); adf_disable_aer(accel_dev); adf_cleanup_accel(accel_dev); + adf_cleanup_pci_dev(accel_dev); + kfree(accel_dev); } static int __init adfdrv_init(void) |