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dma/ioat: add statistics

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Add statistic tracking for operations in IOAT.

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Reviewed-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This commit is contained in:
Conor Walsh 2021-10-18 12:38:31 +00:00 committed by Thomas Monjalon
parent 9f46de12c4
commit f526394174
1 changed files with 43 additions and 0 deletions
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43
drivers/dma/ioat/ioat_dmadev.c
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@ -77,6 +77,9 @@ ioat_vchan_setup(struct rte_dma_dev *dev, uint16_t vchan __rte_unused,
ioat->offset = 0; ioat->offset = 0;
ioat->failure = 0; ioat->failure = 0;
/* Reset Stats. */
ioat->stats = (struct rte_dma_stats){0};
/* Configure descriptor ring - each one points to next. */ /* Configure descriptor ring - each one points to next. */
for (i = 0; i < ioat->qcfg.nb_desc; i++) { for (i = 0; i < ioat->qcfg.nb_desc; i++) {
ioat->desc_ring[i].next = ioat->ring_addr + ioat->desc_ring[i].next = ioat->ring_addr +
@ -222,6 +225,8 @@ __submit(struct ioat_dmadev *ioat)
{ {
*ioat->doorbell = ioat->next_write - ioat->offset; *ioat->doorbell = ioat->next_write - ioat->offset;
ioat->stats.submitted += (uint16_t)(ioat->next_write - ioat->last_write);
ioat->last_write = ioat->next_write; ioat->last_write = ioat->next_write;
} }
@ -352,6 +357,10 @@ __dev_dump(void *dev_private, FILE *f)
fprintf(f, " Dest: 0x%"PRIx64"\n", ioat->desc_ring[ioat->next_read & mask].dest_addr); fprintf(f, " Dest: 0x%"PRIx64"\n", ioat->desc_ring[ioat->next_read & mask].dest_addr);
fprintf(f, " Next: 0x%"PRIx64"\n", ioat->desc_ring[ioat->next_read & mask].next); fprintf(f, " Next: 0x%"PRIx64"\n", ioat->desc_ring[ioat->next_read & mask].next);
fprintf(f, " }\n"); fprintf(f, " }\n");
fprintf(f, " Key Stats { submitted: %"PRIu64", comp: %"PRIu64", failed: %"PRIu64" }\n",
ioat->stats.submitted,
ioat->stats.completed,
ioat->stats.errors);
return 0; return 0;
} }
@ -448,6 +457,9 @@ ioat_completed(void *dev_private, uint16_t qid __rte_unused, const uint16_t max_
*last_idx = ioat->next_read - 2; *last_idx = ioat->next_read - 2;
} }
ioat->stats.completed += count;
ioat->stats.errors += fails;
return count; return count;
} }
@ -498,9 +510,38 @@ ioat_completed_status(void *dev_private, uint16_t qid __rte_unused,
*last_idx = ioat->next_read - 1; *last_idx = ioat->next_read - 1;
ioat->stats.completed += count;
ioat->stats.errors += fails;
return count; return count;
} }
/* Retrieve the generic stats of a DMA device. */
static int
ioat_stats_get(const struct rte_dma_dev *dev, uint16_t vchan __rte_unused,
struct rte_dma_stats *rte_stats, uint32_t size)
{
struct rte_dma_stats *stats = (&((struct ioat_dmadev *)dev->fp_obj->dev_private)->stats);
if (size < sizeof(rte_stats))
return -EINVAL;
if (rte_stats == NULL)
return -EINVAL;
*rte_stats = *stats;
return 0;
}
/* Reset the generic stat counters for the DMA device. */
static int
ioat_stats_reset(struct rte_dma_dev *dev, uint16_t vchan __rte_unused)
{
struct ioat_dmadev *ioat = dev->fp_obj->dev_private;
ioat->stats = (struct rte_dma_stats){0};
return 0;
}
/* Create a DMA device. */ /* Create a DMA device. */
static int static int
ioat_dmadev_create(const char *name, struct rte_pci_device *dev) ioat_dmadev_create(const char *name, struct rte_pci_device *dev)
@ -512,6 +553,8 @@ ioat_dmadev_create(const char *name, struct rte_pci_device *dev)
.dev_info_get = ioat_dev_info_get, .dev_info_get = ioat_dev_info_get,
.dev_start = ioat_dev_start, .dev_start = ioat_dev_start,
.dev_stop = ioat_dev_stop, .dev_stop = ioat_dev_stop,
.stats_get = ioat_stats_get,
.stats_reset = ioat_stats_reset,
.vchan_setup = ioat_vchan_setup, .vchan_setup = ioat_vchan_setup,
}; };