raw/ioat: add info query for idxd device

[dpdk.git] / drivers / raw / ioat / ioat_common.c

diff --git a/drivers/raw/ioat/ioat_common.c b/drivers/raw/ioat/ioat_common.c
index 6722413..b5cea2f 100644 (file)
--- a/drivers/raw/ioat/ioat_common.c
+++ b/drivers/raw/ioat/ioat_common.c
@@ -44,6 +44,88 @@ idxd_dev_dump(struct rte_rawdev *dev, FILE *f)
        return 0;
 }
 
+int
+idxd_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info,
+               size_t info_size)
+{
+       struct rte_ioat_rawdev_config *cfg = dev_info;
+       struct idxd_rawdev *idxd = dev->dev_private;
+       struct rte_idxd_rawdev *rte_idxd = &idxd->public;
+
+       if (info_size != sizeof(*cfg))
+               return -EINVAL;
+
+       if (cfg != NULL) {
+               cfg->ring_size = rte_idxd->hdl_ring_sz;
+               cfg->hdls_disable = rte_idxd->hdls_disable;
+       }
+       return 0;
+}
+
+int
+idxd_dev_configure(const struct rte_rawdev *dev,
+               rte_rawdev_obj_t config, size_t config_size)
+{
+       struct idxd_rawdev *idxd = dev->dev_private;
+       struct rte_idxd_rawdev *rte_idxd = &idxd->public;
+       struct rte_ioat_rawdev_config *cfg = config;
+       uint16_t max_desc = cfg->ring_size;
+       uint16_t max_batches = max_desc / BATCH_SIZE;
+       uint16_t i;
+
+       if (config_size != sizeof(*cfg))
+               return -EINVAL;
+
+       if (dev->started) {
+               IOAT_PMD_ERR("%s: Error, device is started.", __func__);
+               return -EAGAIN;
+       }
+
+       rte_idxd->hdls_disable = cfg->hdls_disable;
+
+       /* limit the batches to what can be stored in hardware */
+       if (max_batches > idxd->max_batches) {
+               IOAT_PMD_DEBUG("Ring size of %u is too large for this device, need to limit to %u batches of %u",
+                               max_desc, idxd->max_batches, BATCH_SIZE);
+               max_batches = idxd->max_batches;
+               max_desc = max_batches * BATCH_SIZE;
+       }
+       if (!rte_is_power_of_2(max_desc))
+               max_desc = rte_align32pow2(max_desc);
+       IOAT_PMD_DEBUG("Rawdev %u using %u descriptors in %u batches",
+                       dev->dev_id, max_desc, max_batches);
+
+       /* in case we are reconfiguring a device, free any existing memory */
+       rte_free(rte_idxd->batch_ring);
+       rte_free(rte_idxd->hdl_ring);
+
+       rte_idxd->batch_ring = rte_zmalloc(NULL,
+                       sizeof(*rte_idxd->batch_ring) * max_batches, 0);
+       if (rte_idxd->batch_ring == NULL)
+               return -ENOMEM;
+
+       rte_idxd->hdl_ring = rte_zmalloc(NULL,
+                       sizeof(*rte_idxd->hdl_ring) * max_desc, 0);
+       if (rte_idxd->hdl_ring == NULL) {
+               rte_free(rte_idxd->batch_ring);
+               rte_idxd->batch_ring = NULL;
+               return -ENOMEM;
+       }
+       rte_idxd->batch_ring_sz = max_batches;
+       rte_idxd->hdl_ring_sz = max_desc;
+
+       for (i = 0; i < rte_idxd->batch_ring_sz; i++) {
+               struct rte_idxd_desc_batch *b = &rte_idxd->batch_ring[i];
+               b->batch_desc.completion = rte_mem_virt2iova(&b->comp);
+               b->batch_desc.desc_addr = rte_mem_virt2iova(&b->null_desc);
+               b->batch_desc.op_flags = (idxd_op_batch << IDXD_CMD_OP_SHIFT) |
+                               IDXD_FLAG_COMPLETION_ADDR_VALID |
+                               IDXD_FLAG_REQUEST_COMPLETION;
+       }
+
+       return 0;
+}
+
 int
 idxd_rawdev_create(const char *name, struct rte_device *dev,
                   const struct idxd_rawdev *base_idxd,
@@ -89,6 +171,7 @@ idxd_rawdev_create(const char *name, struct rte_device *dev,
 
        idxd = rawdev->dev_private;
        *idxd = *base_idxd; /* copy over the main fields already passed in */
+       idxd->public.type = RTE_IDXD_DEV;
        idxd->rawdev = rawdev;
        idxd->mz = mz;