Add the stats function to get the DMA statistics.
Signed-off-by: Radha Mohan Chintakuntla <radhac@marvell.com>
---
drivers/dma/cnxk/cnxk_dmadev.c | 41 ++++++++++++++++++++++++++++++++--
drivers/dma/cnxk/cnxk_dmadev.h | 1 +
2 files changed, 40 insertions(+), 2 deletions(-)
@@ -271,6 +271,7 @@ cnxk_dmadev_copy(void *dev_private, uint16_t vchan, rte_iova_t src,
rte_wmb();
plt_write64(num_words,
dpivf->rdpi.rbase + DPI_VDMA_DBELL);
+ dpivf->stats.submitted++;
}
dpivf->num_words += num_words;
}
@@ -336,6 +337,7 @@ cnxk_dmadev_copy_sg(void *dev_private, uint16_t vchan,
rte_wmb();
plt_write64(num_words,
dpivf->rdpi.rbase + DPI_VDMA_DBELL);
+ dpivf->stats.submitted += nb_src;
}
dpivf->num_words += num_words;
}
@@ -357,12 +359,14 @@ cnxk_dmadev_completed(void *dev_private, uint16_t vchan, const uint16_t nb_cpls,
if (comp_ptr->cdata) {
*has_error = 1;
+ dpivf->stats.errors++;
break;
}
}
*last_idx = cnt - 1;
dpivf->conf.c_desc.tail = cnt;
+ dpivf->stats.completed += cnt;
return cnt;
}
@@ -381,10 +385,13 @@ cnxk_dmadev_completed_status(void *dev_private, uint16_t vchan,
struct cnxk_dpi_compl_s *comp_ptr =
dpivf->conf.c_desc.compl_ptr[cnt];
status[cnt] = comp_ptr->cdata;
+ if (comp_ptr->cdata)
+ dpivf->stats.errors++;
}
*last_idx = cnt - 1;
dpivf->conf.c_desc.tail = 0;
+ dpivf->stats.completed += cnt;
return cnt;
}
@@ -396,17 +403,47 @@ cnxk_dmadev_submit(void *dev_private, uint16_t vchan __rte_unused)
rte_wmb();
plt_write64(dpivf->num_words, dpivf->rdpi.rbase + DPI_VDMA_DBELL);
+ dpivf->stats.submitted++;
return 0;
}
+static int
+cnxk_stats_get(const struct rte_dma_dev *dev, uint16_t vchan,
+ struct rte_dma_stats *rte_stats, uint32_t size)
+{
+ struct cnxk_dpi_vf_s *dpivf = dev->fp_obj->dev_private;
+ struct rte_dma_stats *stats = &dpivf->stats;
+
+ RTE_SET_USED(vchan);
+
+ if (size < sizeof(rte_stats))
+ return -EINVAL;
+ if (rte_stats == NULL)
+ return -EINVAL;
+
+ *rte_stats = *stats;
+ return 0;
+}
+
+static int
+cnxk_stats_reset(struct rte_dma_dev *dev, uint16_t vchan __rte_unused)
+{
+ struct cnxk_dpi_vf_s *dpivf = dev->fp_obj->dev_private;
+
+ dpivf->stats = (struct rte_dma_stats){0};
+ return 0;
+}
+
static const struct rte_dma_dev_ops cnxk_dmadev_ops = {
- .dev_info_get = cnxk_dmadev_info_get,
+ .dev_close = cnxk_dmadev_close,
.dev_configure = cnxk_dmadev_configure,
+ .dev_info_get = cnxk_dmadev_info_get,
.dev_start = cnxk_dmadev_start,
.dev_stop = cnxk_dmadev_stop,
+ .stats_get = cnxk_stats_get,
+ .stats_reset = cnxk_stats_reset,
.vchan_setup = cnxk_dmadev_vchan_setup,
- .dev_close = cnxk_dmadev_close,
};
static int
@@ -35,6 +35,7 @@ struct cnxk_dpi_conf {
struct cnxk_dpi_vf_s {
struct roc_dpi rdpi;
struct cnxk_dpi_conf conf;
+ struct rte_dma_stats stats;
uint64_t cmd[DPI_MAX_CMD_SIZE];
uint32_t num_words;
uint16_t desc_idx;