[dpdk-dev] [PATCH] net/i40e: update fdir Rx resource

[Beilei Xing]

Add FDIR Rx ring initialization and update Rx queue HW tail when
there's error detected during programming FDIR flow.

Signed-off-by: Beilei Xing <beilei.x...@intel.com>
---
 drivers/net/i40e/i40e_fdir.c | 7 ++++++-
 drivers/net/i40e/i40e_rxtx.c | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index 906c204..d29b4af 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1342,13 +1342,18 @@ i40e_check_fdir_programming_status(struct i40e_rx_queue 
*rxq)
                                PMD_DRV_LOG(ERR, "invalid programming status"
                                            " reported, error = %u.", error);
                } else
-                       PMD_DRV_LOG(ERR, "unknown programming status"
+                       PMD_DRV_LOG(INFO, "unknown programming status"
                                    " reported, len = %d, id = %u.", len, id);
                rxdp->wb.qword1.status_error_len = 0;
                rxq->rx_tail++;
                if (unlikely(rxq->rx_tail == rxq->nb_rx_desc))
                        rxq->rx_tail = 0;
+               if (rxq->rx_tail == 0)
+                       I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
+               else
+                       I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_tail);
        }
+
        return ret;
 }
 
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 23256b7..f16944e 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -2719,6 +2719,7 @@ i40e_fdir_setup_rx_resources(struct i40e_pf *pf)
        rxq->vsi = pf->fdir.fdir_vsi;
 
        rxq->rx_ring_phys_addr = rz->iova;
+       memset(rz->addr, 0, I40E_FDIR_NUM_RX_DESC * sizeof(union i40e_rx_desc));
        rxq->rx_ring = (union i40e_rx_desc *)rz->addr;
 
        /*
-- 
2.5.5