diff options
| -rw-r--r-- | drivers/dma/idxd/Makefile | 2 | ||||
| -rw-r--r-- | drivers/dma/idxd/defaults.c | 53 | ||||
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 4 | ||||
| -rw-r--r-- | drivers/dma/idxd/init.c | 7 |
4 files changed, 65 insertions, 1 deletions
diff --git a/drivers/dma/idxd/Makefile b/drivers/dma/idxd/Makefile index c5e679070e46..2b4a0d406e1e 100644 --- a/drivers/dma/idxd/Makefile +++ b/drivers/dma/idxd/Makefile @@ -4,7 +4,7 @@ obj-$(CONFIG_INTEL_IDXD_BUS) += idxd_bus.o idxd_bus-y := bus.o obj-$(CONFIG_INTEL_IDXD) += idxd.o -idxd-y := init.o irq.o device.o sysfs.o submit.o dma.o cdev.o debugfs.o +idxd-y := init.o irq.o device.o sysfs.o submit.o dma.o cdev.o debugfs.o defaults.o idxd-$(CONFIG_INTEL_IDXD_PERFMON) += perfmon.o diff --git a/drivers/dma/idxd/defaults.c b/drivers/dma/idxd/defaults.c new file mode 100644 index 000000000000..c607ae8dd12c --- /dev/null +++ b/drivers/dma/idxd/defaults.c @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright(c) 2023 Intel Corporation. All rights rsvd. */ +#include <linux/kernel.h> +#include "idxd.h" + +int idxd_load_iaa_device_defaults(struct idxd_device *idxd) +{ + struct idxd_engine *engine; + struct idxd_group *group; + struct idxd_wq *wq; + + if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags)) + return 0; + + wq = idxd->wqs[0]; + + if (wq->state != IDXD_WQ_DISABLED) + return -EPERM; + + /* set mode to "dedicated" */ + set_bit(WQ_FLAG_DEDICATED, &wq->flags); + wq->threshold = 0; + + /* only setting up 1 wq, so give it all the wq space */ + wq->size = idxd->max_wq_size; + + /* set priority to 10 */ + wq->priority = 10; + + /* set type to "kernel" */ + wq->type = IDXD_WQT_KERNEL; + + /* set wq group to 0 */ + group = idxd->groups[0]; + wq->group = group; + group->num_wqs++; + + /* set name to "iaa_crypto" */ + memset(wq->name, 0, WQ_NAME_SIZE + 1); + strscpy(wq->name, "iaa_crypto", WQ_NAME_SIZE + 1); + + /* set driver_name to "crypto" */ + memset(wq->driver_name, 0, DRIVER_NAME_SIZE + 1); + strscpy(wq->driver_name, "crypto", DRIVER_NAME_SIZE + 1); + + engine = idxd->engines[0]; + + /* set engine group to 0 */ + engine->group = idxd->groups[0]; + engine->group->num_engines++; + + return 0; +} diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index 62ea21b25906..47de3f93ff1e 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -277,6 +277,8 @@ struct idxd_dma_dev { struct dma_device dma; }; +typedef int (*load_device_defaults_fn_t) (struct idxd_device *idxd); + struct idxd_driver_data { const char *name_prefix; enum idxd_type type; @@ -286,6 +288,7 @@ struct idxd_driver_data { int evl_cr_off; int cr_status_off; int cr_result_off; + load_device_defaults_fn_t load_device_defaults; }; struct idxd_evl { @@ -730,6 +733,7 @@ void idxd_unregister_devices(struct idxd_device *idxd); void idxd_wqs_quiesce(struct idxd_device *idxd); bool idxd_queue_int_handle_resubmit(struct idxd_desc *desc); void multi_u64_to_bmap(unsigned long *bmap, u64 *val, int count); +int idxd_load_iaa_device_defaults(struct idxd_device *idxd); /* device interrupt control */ irqreturn_t idxd_misc_thread(int vec, void *data); diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index 0eb1c827a215..14df1f1347a8 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -59,6 +59,7 @@ static struct idxd_driver_data idxd_driver_data[] = { .evl_cr_off = offsetof(struct iax_evl_entry, cr), .cr_status_off = offsetof(struct iax_completion_record, status), .cr_result_off = offsetof(struct iax_completion_record, error_code), + .load_device_defaults = idxd_load_iaa_device_defaults, }, }; @@ -745,6 +746,12 @@ static int idxd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err; } + if (data->load_device_defaults) { + rc = data->load_device_defaults(idxd); + if (rc) + dev_warn(dev, "IDXD loading device defaults failed\n"); + } + rc = idxd_register_devices(idxd); if (rc) { dev_err(dev, "IDXD sysfs setup failed\n"); |