ixgbe: RSS RETA configuration

Signed-off-by: Intel

diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index d3242fd..bfc9a79 100644 (file)
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -131,6 +131,10 @@ static int  ixgbe_flow_ctrl_set(struct rte_eth_dev *dev,
                struct rte_eth_fc_conf *fc_conf);
 static int ixgbe_priority_flow_ctrl_set(struct rte_eth_dev *dev,
                struct rte_eth_pfc_conf *pfc_conf);
+static int ixgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+               struct rte_eth_rss_reta *reta_conf);
+static int ixgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+               struct rte_eth_rss_reta *reta_conf);    
 static void ixgbe_dev_link_status_print(struct rte_eth_dev *dev);
 static int ixgbe_dev_lsc_interrupt_setup(struct rte_eth_dev *dev);
 static int ixgbe_dev_interrupt_get_status(struct rte_eth_dev *dev);
@@ -258,6 +262,8 @@ static struct eth_dev_ops ixgbe_eth_dev_ops = {
        .fdir_update_perfect_filter   = ixgbe_fdir_update_perfect_filter,
        .fdir_remove_perfect_filter   = ixgbe_fdir_remove_perfect_filter,
        .fdir_set_masks               = ixgbe_fdir_set_masks,
+       .reta_update          = ixgbe_dev_rss_reta_update,
+       .reta_query           = ixgbe_dev_rss_reta_query,
 };
 
 /*
@@ -2131,6 +2137,79 @@ ixgbe_priority_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_pfc_conf *p
        return -EIO;
 }      
 
+static int 
+ixgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+                               struct rte_eth_rss_reta *reta_conf)
+{      
+       uint8_t i,j,mask;
+       uint32_t reta;
+       struct ixgbe_hw *hw = 
+                       IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       PMD_INIT_FUNC_TRACE();
+       /*  
+       * Update Redirection Table RETA[n],n=0...31,The redirection table has 
+       * 128-entries in 32 registers
+        */ 
+       for(i = 0; i < ETH_RSS_RETA_NUM_ENTRIES; i += 4) {
+               if (i < ETH_RSS_RETA_NUM_ENTRIES/2) 
+                       mask = (uint8_t)((reta_conf->mask_lo >> i) & 0xF);
+               else
+                       mask = (uint8_t)((reta_conf->mask_hi >> 
+                               (i - ETH_RSS_RETA_NUM_ENTRIES/2)) & 0xF);
+               if (mask != 0) {
+                       reta = 0;
+                       if (mask != 0xF)
+                               reta = IXGBE_READ_REG(hw,IXGBE_RETA(i >> 2));
+
+                       for (j = 0; j < 4; j++) {
+                               if (mask & (0x1 << j)) {
+                                       if (mask != 0xF)
+                                               reta &= ~(0xFF << 8 * j);
+                                       reta |= reta_conf->reta[i + j] << 8*j;
+                               }
+                       }
+                       IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2),reta);
+               }
+       }
+
+       return 0;
+}
+
+static int
+ixgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+                               struct rte_eth_rss_reta *reta_conf)
+{
+       uint8_t i,j,mask;
+       uint32_t reta;
+       struct ixgbe_hw *hw =
+                       IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       
+       PMD_INIT_FUNC_TRACE();
+       /* 
+        * Read Redirection Table RETA[n],n=0...31,The redirection table has 
+        * 128-entries in 32 registers
+        */
+       for(i = 0; i < ETH_RSS_RETA_NUM_ENTRIES; i += 4) {
+               if (i < ETH_RSS_RETA_NUM_ENTRIES/2)
+                       mask = (uint8_t)((reta_conf->mask_lo >> i) & 0xF);
+               else
+                       mask = (uint8_t)((reta_conf->mask_hi >> 
+                               (i - ETH_RSS_RETA_NUM_ENTRIES/2)) & 0xF);
+
+               if (mask != 0) {
+                       reta = IXGBE_READ_REG(hw,IXGBE_RETA(i >> 2));
+                       for (j = 0; j < 4; j++) {
+                               if (mask & (0x1 << j))
+                                       reta_conf->reta[i + j] = 
+                                               (uint8_t)((reta >> 8 * j) & 0xFF);
+                       } 
+               }
+       }
+
+       return 0;               
+}
+
 static void
 ixgbe_add_rar(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
                                uint32_t index, uint32_t pool)