dma/hisilicon: add queue full statistics

This patch adds queue full statistics for HiSilicon DMA PMD.

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>

diff --git a/drivers/dma/hisilicon/hisi_dmadev.c b/drivers/dma/hisilicon/hisi_dmadev.c
index 3917db38b7dbc606e12446dd70be1569e2462eee..c36acf01be406bdb4a884f3f4a31aeff11a19bb7 100644 (file)
--- a/drivers/dma/hisilicon/hisi_dmadev.c
+++ b/drivers/dma/hisilicon/hisi_dmadev.c
@@ -407,6 +407,7 @@ hisi_dma_start(struct rte_dma_dev *dev)
        hw->submitted = 0;
        hw->completed = 0;
        hw->errors = 0;
+       hw->qfulls = 0;
 
        hisi_dma_update_queue_bit(hw, HISI_DMA_QUEUE_CTRL0_REG,
                                  HISI_DMA_QUEUE_CTRL0_EN_B, true);
@@ -455,6 +456,7 @@ hisi_dma_stats_reset(struct rte_dma_dev *dev, uint16_t vchan)
        hw->submitted = 0;
        hw->completed = 0;
        hw->errors = 0;
+       hw->qfulls = 0;
 
        return 0;
 }
@@ -566,14 +568,14 @@ hisi_dma_dump(const struct rte_dma_dev *dev, FILE *f)
                "    ridx: %u cridx: %u\n"
                "    sq_head: %u sq_tail: %u cq_sq_head: %u\n"
                "    cq_head: %u cqs_completed: %u cqe_vld: %u\n"
-               "    submitted: %" PRIu64 " completed: %" PRIu64 " errors %"
-               PRIu64"\n",
+               "    submitted: %" PRIu64 " completed: %" PRIu64 " errors: %"
+               PRIu64 " qfulls: %" PRIu64 "\n",
                hw->revision, hw->queue_id,
                hw->sq_depth_mask > 0 ? hw->sq_depth_mask + 1 : 0,
                hw->ridx, hw->cridx,
                hw->sq_head, hw->sq_tail, hw->cq_sq_head,
                hw->cq_head, hw->cqs_completed, hw->cqe_vld,
-               hw->submitted, hw->completed, hw->errors);
+               hw->submitted, hw->completed, hw->errors, hw->qfulls);
        hisi_dma_dump_queue(hw, f);
        hisi_dma_dump_common(hw, f);
 
@@ -590,8 +592,10 @@ hisi_dma_copy(void *dev_private, uint16_t vchan,
 
        RTE_SET_USED(vchan);
 
-       if (((hw->sq_tail + 1) & hw->sq_depth_mask) == hw->sq_head)
+       if (((hw->sq_tail + 1) & hw->sq_depth_mask) == hw->sq_head) {
+               hw->qfulls++;
                return -ENOSPC;
+       }
 
        sqe->dw0 = rte_cpu_to_le_32(SQE_OPCODE_M2M);
        sqe->dw1 = 0;

diff --git a/drivers/dma/hisilicon/hisi_dmadev.h b/drivers/dma/hisilicon/hisi_dmadev.h
index 1eaa822db1037c1cc4d13c1fad446e7199a60799..90b85322ca9b43680cff64e18b6dbb695e8f3e14 100644 (file)
--- a/drivers/dma/hisilicon/hisi_dmadev.h
+++ b/drivers/dma/hisilicon/hisi_dmadev.h
@@ -241,6 +241,7 @@ struct hisi_dma_dev {
        uint64_t submitted;
        uint64_t completed;
        uint64_t errors;
+       uint64_t qfulls;
 
        /**
         * The following fields are not accessed in the I/O path, so they are