dma/dpaa2: support basic operations

This patch support basic DMA operations which includes
device capability and channel setup.

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>

diff --git a/drivers/dma/dpaa2/dpaa2_qdma.c b/drivers/dma/dpaa2/dpaa2_qdma.c
index 9fa48ddfa42b9175604f93c972b28ab11479bae5..785d8aea7b19dec7299152b54406367759a753ca 100644 (file)
--- a/drivers/dma/dpaa2/dpaa2_qdma.c
+++ b/drivers/dma/dpaa2/dpaa2_qdma.c
@@ -6,6 +6,7 @@
 #include <rte_fslmc.h>
 #include <rte_dmadev.h>
 #include <rte_dmadev_pmd.h>
+#include <rte_kvargs.h>
 #include <mc/fsl_dpdmai.h>
 #include "dpaa2_qdma.h"
 #include "dpaa2_qdma_logs.h"
@@ -15,6 +16,171 @@ int dpaa2_qdma_logtype;
 uint32_t dpaa2_coherent_no_alloc_cache;
 uint32_t dpaa2_coherent_alloc_cache;
 
+static int
+dpaa2_qdma_info_get(const struct rte_dma_dev *dev,
+                   struct rte_dma_info *dev_info,
+                   uint32_t info_sz)
+{
+       RTE_SET_USED(dev);
+       RTE_SET_USED(info_sz);
+
+       dev_info->dev_capa = RTE_DMA_CAPA_MEM_TO_MEM |
+                            RTE_DMA_CAPA_MEM_TO_DEV |
+                            RTE_DMA_CAPA_DEV_TO_DEV |
+                            RTE_DMA_CAPA_DEV_TO_MEM |
+                            RTE_DMA_CAPA_SILENT |
+                            RTE_DMA_CAPA_OPS_COPY;
+       dev_info->max_vchans = DPAA2_QDMA_MAX_VHANS;
+       dev_info->max_desc = DPAA2_QDMA_MAX_DESC;
+       dev_info->min_desc = DPAA2_QDMA_MIN_DESC;
+
+       return 0;
+}
+
+static int
+dpaa2_qdma_configure(struct rte_dma_dev *dev,
+                    const struct rte_dma_conf *dev_conf,
+                    uint32_t conf_sz)
+{
+       char name[32]; /* RTE_MEMZONE_NAMESIZE = 32 */
+       struct dpaa2_dpdmai_dev *dpdmai_dev = dev->data->dev_private;
+       struct qdma_device *qdma_dev = dpdmai_dev->qdma_dev;
+
+       DPAA2_QDMA_FUNC_TRACE();
+
+       RTE_SET_USED(conf_sz);
+
+       /* In case QDMA device is not in stopped state, return -EBUSY */
+       if (qdma_dev->state == 1) {
+               DPAA2_QDMA_ERR(
+                       "Device is in running state. Stop before config.");
+               return -1;
+       }
+
+       /* Allocate Virtual Queues */
+       sprintf(name, "qdma_%d_vq", dev->data->dev_id);
+       qdma_dev->vqs = rte_malloc(name,
+                       (sizeof(struct qdma_virt_queue) * dev_conf->nb_vchans),
+                       RTE_CACHE_LINE_SIZE);
+       if (!qdma_dev->vqs) {
+               DPAA2_QDMA_ERR("qdma_virtual_queues allocation failed");
+               return -ENOMEM;
+       }
+       qdma_dev->num_vqs = dev_conf->nb_vchans;
+
+       return 0;
+}
+
+static int
+dpaa2_qdma_vchan_setup(struct rte_dma_dev *dev, uint16_t vchan,
+                      const struct rte_dma_vchan_conf *conf,
+                      uint32_t conf_sz)
+{
+       struct dpaa2_dpdmai_dev *dpdmai_dev = dev->data->dev_private;
+       struct qdma_device *qdma_dev = dpdmai_dev->qdma_dev;
+       uint32_t pool_size;
+       char ring_name[32];
+       char pool_name[64];
+       int fd_long_format = 1;
+       int sg_enable = 0;
+
+       DPAA2_QDMA_FUNC_TRACE();
+
+       RTE_SET_USED(conf_sz);
+
+       if (qdma_dev->vqs[vchan].flags & DPAA2_QDMA_VQ_FD_SG_FORMAT)
+               sg_enable = 1;
+
+       if (qdma_dev->vqs[vchan].flags & DPAA2_QDMA_VQ_FD_SHORT_FORMAT)
+               fd_long_format = 0;
+
+       if (dev->data->dev_conf.enable_silent)
+               qdma_dev->vqs[vchan].flags |= DPAA2_QDMA_VQ_NO_RESPONSE;
+
+       if (sg_enable) {
+               if (qdma_dev->num_vqs != 1) {
+                       DPAA2_QDMA_ERR(
+                               "qDMA SG format only supports physical queue!");
+                       return -ENODEV;
+               }
+               if (!fd_long_format) {
+                       DPAA2_QDMA_ERR(
+                               "qDMA SG format only supports long FD format!");
+                       return -ENODEV;
+               }
+               pool_size = QDMA_FLE_SG_POOL_SIZE;
+       } else {
+               pool_size = QDMA_FLE_SINGLE_POOL_SIZE;
+       }
+
+       if (qdma_dev->num_vqs == 1)
+               qdma_dev->vqs[vchan].exclusive_hw_queue = 1;
+       else {
+               /* Allocate a Ring for Virtual Queue in VQ mode */
+               snprintf(ring_name, sizeof(ring_name), "status ring %d %d",
+                        dev->data->dev_id, vchan);
+               qdma_dev->vqs[vchan].status_ring = rte_ring_create(ring_name,
+                       conf->nb_desc, rte_socket_id(), 0);
+               if (!qdma_dev->vqs[vchan].status_ring) {
+                       DPAA2_QDMA_ERR("Status ring creation failed for vq");
+                       return rte_errno;
+               }
+       }
+
+       snprintf(pool_name, sizeof(pool_name),
+               "qdma_fle_pool_dev%d_qid%d", dpdmai_dev->dpdmai_id, vchan);
+       qdma_dev->vqs[vchan].fle_pool = rte_mempool_create(pool_name,
+                       conf->nb_desc, pool_size,
+                       QDMA_FLE_CACHE_SIZE(conf->nb_desc), 0,
+                       NULL, NULL, NULL, NULL, SOCKET_ID_ANY, 0);
+       if (!qdma_dev->vqs[vchan].fle_pool) {
+               DPAA2_QDMA_ERR("qdma_fle_pool create failed");
+               return -ENOMEM;
+       }
+
+       snprintf(pool_name, sizeof(pool_name),
+               "qdma_job_pool_dev%d_qid%d", dpdmai_dev->dpdmai_id, vchan);
+       qdma_dev->vqs[vchan].job_pool = rte_mempool_create(pool_name,
+                       conf->nb_desc, pool_size,
+                       QDMA_FLE_CACHE_SIZE(conf->nb_desc), 0,
+                       NULL, NULL, NULL, NULL, SOCKET_ID_ANY, 0);
+       if (!qdma_dev->vqs[vchan].job_pool) {
+               DPAA2_QDMA_ERR("qdma_job_pool create failed");
+               return -ENOMEM;
+       }
+
+       qdma_dev->vqs[vchan].dpdmai_dev = dpdmai_dev;
+       qdma_dev->vqs[vchan].nb_desc = conf->nb_desc;
+
+       return 0;
+}
+
+static int
+dpaa2_qdma_start(struct rte_dma_dev *dev)
+{
+       struct dpaa2_dpdmai_dev *dpdmai_dev = dev->data->dev_private;
+       struct qdma_device *qdma_dev = dpdmai_dev->qdma_dev;
+
+       DPAA2_QDMA_FUNC_TRACE();
+
+       qdma_dev->state = 1;
+
+       return 0;
+}
+
+static int
+dpaa2_qdma_stop(struct rte_dma_dev *dev)
+{
+       struct dpaa2_dpdmai_dev *dpdmai_dev = dev->data->dev_private;
+       struct qdma_device *qdma_dev = dpdmai_dev->qdma_dev;
+
+       DPAA2_QDMA_FUNC_TRACE();
+
+       qdma_dev->state = 0;
+
+       return 0;
+}
+
 static int
 dpaa2_qdma_reset(struct rte_dma_dev *dev)
 {
@@ -55,7 +221,23 @@ dpaa2_qdma_reset(struct rte_dma_dev *dev)
        return 0;
 }
 
+static int
+dpaa2_qdma_close(__rte_unused struct rte_dma_dev *dev)
+{
+       DPAA2_QDMA_FUNC_TRACE();
+
+       dpaa2_qdma_reset(dev);
+
+       return 0;
+}
+
 static struct rte_dma_dev_ops dpaa2_qdma_ops = {
+       .dev_info_get     = dpaa2_qdma_info_get,
+       .dev_configure    = dpaa2_qdma_configure,
+       .dev_start        = dpaa2_qdma_start,
+       .dev_stop         = dpaa2_qdma_stop,
+       .dev_close        = dpaa2_qdma_close,
+       .vchan_setup      = dpaa2_qdma_vchan_setup,
 };
 
 static int