[dpdk-dev] [PATCH v4 12/21] i40e: implement operations to get fdir info

[Jingjing Wu]

implement operation to get flow director information in i40e pmd driver

Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
---
 lib/librte_pmd_i40e/i40e_fdir.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/lib/librte_pmd_i40e/i40e_fdir.c b/lib/librte_pmd_i40e/i40e_fdir.c
index 8996a1c..d2c8304 100644
--- a/lib/librte_pmd_i40e/i40e_fdir.c
+++ b/lib/librte_pmd_i40e/i40e_fdir.c
@@ -89,6 +89,8 @@ static int i40e_fdir_filter_programming(struct i40e_pf *pf,
                        enum i40e_filter_pctype pctype,
                        struct rte_eth_fdir_filter *filter,
                        bool add);
+static void i40e_fdir_info_get(struct i40e_pf *pf,
+                          struct rte_eth_fdir_info *fdir);

 static int
 i40e_fdir_rx_queue_init(struct i40e_rx_queue *rxq)
@@ -874,6 +876,36 @@ i40e_fdir_filter_programming(struct i40e_pf *pf,
 }

 /*
+ * i40e_fdir_info_get - get information of Flow Director
+ * @pf: ethernet device to get info from
+ * @fdir: a pointer to a structure of type *rte_eth_fdir_info* to be filled 
with
+ *    the flow director information.
+ */
+static void
+i40e_fdir_info_get(struct i40e_pf *pf, struct rte_eth_fdir_info *fdir)
+{
+       struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+       uint32_t pfqf_ctl;
+
+       pfqf_ctl = I40E_READ_REG(hw, I40E_PFQF_CTL_0);
+       fdir->mode = pfqf_ctl & I40E_PFQF_CTL_0_FD_ENA_MASK ?
+                    RTE_FDIR_MODE_PERFECT : RTE_FDIR_MODE_NONE;
+       fdir->info_ext.guarant_spc =
+               (uint16_t)hw->func_caps.fd_filters_guaranteed;
+       fdir->info_ext.guarant_cnt =
+               (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
+                           I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
+                           I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
+       fdir->info_ext.best_spc =
+               (uint16_t)hw->func_caps.fd_filters_best_effort;
+       fdir->info_ext.best_cnt =
+               (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
+                           I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
+                           I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
+       return;
+}
+
+/*
  * i40e_fdir_ctrl_func - deal with all operations on flow director.
  * @pf: board private structure
  * @filter_op:operation will be taken.
@@ -903,6 +935,9 @@ i40e_fdir_ctrl_func(struct i40e_pf *pf, enum rte_filter_op 
filter_op, void *arg)
                        (struct rte_eth_fdir_filter *)arg,
                        FALSE);
                break;
+       case RTE_ETH_FILTER_INFO:
+               i40e_fdir_info_get(pf, (struct rte_eth_fdir_info *)arg);
+               break;
        default:
                PMD_DRV_LOG(ERR, "unknown operation %u.", filter_op);
                ret = -EINVAL;
-- 
1.8.1.4