net/ixgbe: move RSS to flow API

[dpdk.git] / drivers / net / ixgbe / ixgbe_rxtx.c

diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 9bc8462..4b38247 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -5550,6 +5550,71 @@ ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev)
        }
 }
 
+int
+ixgbe_config_rss_filter(struct rte_eth_dev *dev,
+               struct ixgbe_rte_flow_rss_conf *conf, bool add)
+{
+       struct ixgbe_hw *hw;
+       uint32_t reta;
+       uint16_t i;
+       uint16_t j;
+       uint16_t sp_reta_size;
+       uint32_t reta_reg;
+       struct rte_eth_rss_conf rss_conf = conf->rss_conf;
+       struct ixgbe_filter_info *filter_info =
+               IXGBE_DEV_PRIVATE_TO_FILTER_INFO(dev->data->dev_private);
+
+       PMD_INIT_FUNC_TRACE();
+       hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       sp_reta_size = ixgbe_reta_size_get(hw->mac.type);
+
+       if (!add) {
+               if (memcmp(conf, &filter_info->rss_info,
+                       sizeof(struct ixgbe_rte_flow_rss_conf)) == 0) {
+                       ixgbe_rss_disable(dev);
+                       memset(&filter_info->rss_info, 0,
+                               sizeof(struct ixgbe_rte_flow_rss_conf));
+                       return 0;
+               }
+               return -EINVAL;
+       }
+
+       if (filter_info->rss_info.num)
+               return -EINVAL;
+       /* Fill in redirection table
+        * The byte-swap is needed because NIC registers are in
+        * little-endian order.
+        */
+       reta = 0;
+       for (i = 0, j = 0; i < sp_reta_size; i++, j++) {
+               reta_reg = ixgbe_reta_reg_get(hw->mac.type, i);
+
+               if (j == conf->num)
+                       j = 0;
+               reta = (reta << 8) | conf->queue[j];
+               if ((i & 3) == 3)
+                       IXGBE_WRITE_REG(hw, reta_reg,
+                                       rte_bswap32(reta));
+       }
+
+       /* Configure the RSS key and the RSS protocols used to compute
+        * the RSS hash of input packets.
+        */
+       if ((rss_conf.rss_hf & IXGBE_RSS_OFFLOAD_ALL) == 0) {
+               ixgbe_rss_disable(dev);
+               return -EINVAL;
+       }
+       if (rss_conf.rss_key == NULL)
+               rss_conf.rss_key = rss_intel_key; /* Default hash key */
+       ixgbe_hw_rss_hash_set(hw, &rss_conf);
+
+       rte_memcpy(&filter_info->rss_info,
+               conf, sizeof(struct ixgbe_rte_flow_rss_conf));
+
+       return 0;
+}
+
 /* Stubs needed for linkage when CONFIG_RTE_IXGBE_INC_VECTOR is set to 'n' */
 int __attribute__((weak))
 ixgbe_rx_vec_dev_conf_condition_check(struct rte_eth_dev __rte_unused *dev)