[dpdk-dev] [PATCH 7/9] raw/dpaa2_cmdif: add retry and timeout in packet enqueue API
Nipun Gupta
nipun.gupta at nxp.com
Fri Oct 11 07:46:55 CEST 2019
This patch adds retry in the DPAA2 CMDIF packet enqueue API
Fixes: 53c71586c789 ("raw/dpaa2_cmdif: support enqueue/dequeue operations")
Cc: stable at dpdk.org
Signed-off-by: Nipun Gupta <nipun.gupta at nxp.com>
---
drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c b/drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c
index 3f42da1fe..ae53114b5 100644
--- a/drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c
+++ b/drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c
@@ -62,6 +62,7 @@ dpaa2_cmdif_enqueue_bufs(struct rte_rawdev *dev,
struct qbman_fd fd;
struct qbman_eq_desc eqdesc;
struct qbman_swp *swp;
+ uint32_t retry_count = 0;
int ret;
RTE_SET_USED(count);
@@ -100,11 +101,15 @@ dpaa2_cmdif_enqueue_bufs(struct rte_rawdev *dev,
ret = qbman_swp_enqueue_multiple(swp, &eqdesc, &fd, NULL, 1);
if (ret < 0 && ret != -EBUSY)
DPAA2_CMDIF_ERR("Transmit failure with err: %d\n", ret);
- } while (ret == -EBUSY);
+ retry_count++;
+ } while ((ret == -EBUSY) && (retry_count < DPAA2_MAX_TX_RETRY_COUNT));
+
+ if (ret < 0)
+ return ret;
DPAA2_CMDIF_DP_DEBUG("Successfully transmitted a packet\n");
- return 0;
+ return 1;
}
static int
--
2.17.1
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