From: Vanshika Shukla <vanshika.shu...@nxp.com>
This patch improves the dpaa qdma driver and
adds dpaa_qdma_burst_capacity API which returns the
remaining space in the descriptor ring.
Signed-off-by: Vanshika Shukla <vanshika.shu...@nxp.com>
---
drivers/dma/dpaa/dpaa_qdma.c | 34 +++++++++++++++++++++++++---------
drivers/dma/dpaa/dpaa_qdma.h | 3 +--
2 files changed, 26 insertions(+), 11 deletions(-)
diff --git a/drivers/dma/dpaa/dpaa_qdma.c b/drivers/dma/dpaa/dpaa_qdma.c
index 0a91cf040a..bb6b54e583 100644
--- a/drivers/dma/dpaa/dpaa_qdma.c
+++ b/drivers/dma/dpaa/dpaa_qdma.c
@@ -423,7 +423,6 @@ fsl_qdma_halt(struct fsl_qdma_engine *fsl_qdma)
static int
fsl_qdma_queue_transfer_complete(struct fsl_qdma_engine *fsl_qdma,
void *block, int id, const uint16_t nb_cpls,
- uint16_t *last_idx,
enum rte_dma_status_code *status)
{
struct fsl_qdma_queue *fsl_queue = fsl_qdma->queue;
@@ -457,7 +456,6 @@ fsl_qdma_queue_transfer_complete(struct fsl_qdma_engine
*fsl_qdma,
if (fsl_status->virt_head == fsl_status->cq + fsl_status->n_cq)
fsl_status->virt_head = fsl_status->cq;
qdma_writel_be(reg, block + FSL_QDMA_BSQMR);
- *last_idx = fsl_comp->index;
if (status != NULL)
status[count] = RTE_DMA_STATUS_SUCCESSFUL;
@@ -607,7 +605,6 @@ fsl_qdma_enqueue_desc(struct fsl_qdma_chan *fsl_chan,
qdma_desc_addr_set64(ccdf, fsl_comp->bus_addr + 16);
qdma_ccdf_set_format(ccdf, qdma_ccdf_get_offset(fsl_comp->virt_addr));
qdma_ccdf_set_ser(ccdf, qdma_ccdf_get_status(fsl_comp->virt_addr));
- fsl_comp->index = fsl_queue->virt_head - fsl_queue->cq;
fsl_queue->virt_head++;
if (fsl_queue->virt_head == fsl_queue->cq + fsl_queue->n_cq)
@@ -623,7 +620,7 @@ fsl_qdma_enqueue_desc(struct fsl_qdma_chan *fsl_chan,
} else {
fsl_queue->pending++;
}
- return fsl_comp->index;
+ return 0;
}
static int
@@ -771,8 +768,10 @@ dpaa_qdma_enqueue(void *dev_private, uint16_t vchan,
struct fsl_qdma_engine *fsl_qdma = (struct fsl_qdma_engine
*)dev_private;
struct fsl_qdma_chan *fsl_chan =
&fsl_qdma->chans[fsl_qdma->vchan_map[vchan]];
- int ret;
+ struct fsl_qdma_queue *fsl_queue = fsl_chan->queue;
+ int ret, idx;
+ idx = (uint16_t)(fsl_queue->stats.submitted + fsl_queue->pending);
void *fsl_comp = NULL;
fsl_comp = fsl_qdma_prep_memcpy(fsl_chan,
@@ -783,8 +782,10 @@ dpaa_qdma_enqueue(void *dev_private, uint16_t vchan,
return -1;
}
ret = fsl_qdma_enqueue_desc(fsl_chan, fsl_comp, flags);
+ if (ret < 0)
+ return ret;
- return ret;
+ return idx;
}
static uint16_t
@@ -826,8 +827,10 @@ dpaa_qdma_dequeue_status(void *dev_private, uint16_t vchan,
FSL_QDMA_BLOCK_BASE_OFFSET(fsl_qdma, id);
intr = fsl_qdma_queue_transfer_complete(fsl_qdma, block, id, nb_cpls,
- last_idx, st);
+ st);
fsl_queue->stats.completed += intr;
+ if (last_idx != NULL)
+ *last_idx = (uint16_t)(fsl_queue->stats.completed - 1);
return intr;
}
@@ -873,9 +876,10 @@ dpaa_qdma_dequeue(void *dev_private,
FSL_QDMA_BLOCK_BASE_OFFSET(fsl_qdma, id);
intr = fsl_qdma_queue_transfer_complete(fsl_qdma, block, id, nb_cpls,
- last_idx, NULL);
+ NULL);
fsl_queue->stats.completed += intr;
-
+ if (last_idx != NULL)
+ *last_idx = (uint16_t)(fsl_queue->stats.completed - 1);
return intr;
}
@@ -912,6 +916,17 @@ dpaa_qdma_stats_reset(struct rte_dma_dev *dmadev, uint16_t
vchan)
return 0;
}
+static uint16_t
+dpaa_qdma_burst_capacity(const void *dev_private, uint16_t vchan)
+{
+ const struct fsl_qdma_engine *fsl_qdma = dev_private;
+ struct fsl_qdma_chan *fsl_chan =
+ &fsl_qdma->chans[fsl_qdma->vchan_map[vchan]];
+ struct fsl_qdma_queue *fsl_queue = fsl_chan->queue;
+
+ return fsl_queue->n_cq - fsl_queue->pending;
+}
+
static struct rte_dma_dev_ops dpaa_qdma_ops = {
.dev_info_get = dpaa_info_get,
.dev_configure = dpaa_qdma_configure,
@@ -1035,6 +1050,7 @@ dpaa_qdma_probe(__rte_unused struct rte_dpaa_driver
*dpaa_drv,
dmadev->fp_obj->submit = dpaa_qdma_submit;
dmadev->fp_obj->completed = dpaa_qdma_dequeue;
dmadev->fp_obj->completed_status = dpaa_qdma_dequeue_status;
+ dmadev->fp_obj->burst_capacity = dpaa_qdma_burst_capacity;
/* Invoke PMD device initialization function */
ret = dpaa_qdma_init(dmadev);
diff --git a/drivers/dma/dpaa/dpaa_qdma.h b/drivers/dma/dpaa/dpaa_qdma.h
index 7e9e76e21a..2092fb39f5 100644
--- a/drivers/dma/dpaa/dpaa_qdma.h
+++ b/drivers/dma/dpaa/dpaa_qdma.h
@@ -1,5 +1,5 @@
/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright 2021 NXP
+ * Copyright 2021-2024 NXP
*/
#ifndef _DPAA_QDMA_H_
@@ -176,7 +176,6 @@ struct fsl_qdma_comp {
dma_addr_t bus_addr;
dma_addr_t desc_bus_addr;
void *virt_addr;
- int index;
void *desc_virt_addr;
struct fsl_qdma_chan *qchan;
dma_call_back call_back_func;
--
2.25.1
