From: JieLiu <liuj...@linkdatatechnology.com>

Support rss offload.

Signed-off-by: Jie Liu <liuj...@linkdatatechnology.com>
---
 drivers/net/sxe/base/sxe_offload_common.c |  12 +-
 drivers/net/sxe/pf/sxe.h                  |   2 +
 drivers/net/sxe/pf/sxe_ethdev.c           |  12 +-
 drivers/net/sxe/pf/sxe_offload.c          | 298 ++++++++++++++++++++++
 drivers/net/sxe/pf/sxe_offload.h          |  33 +++
 5 files changed, 350 insertions(+), 7 deletions(-)

diff --git a/drivers/net/sxe/base/sxe_offload_common.c 
b/drivers/net/sxe/base/sxe_offload_common.c
index 48f16240df..510ef065df 100644
--- a/drivers/net/sxe/base/sxe_offload_common.c
+++ b/drivers/net/sxe/base/sxe_offload_common.c
@@ -28,15 +28,16 @@ u64 __sxe_rx_port_offload_capa_get(struct rte_eth_dev *dev)
        u64 rx_offload_capa;
 
        rx_offload_capa = RTE_ETH_RX_OFFLOAD_IPV4_CKSUM  |
-                  RTE_ETH_RX_OFFLOAD_UDP_CKSUM   |
-                  RTE_ETH_RX_OFFLOAD_TCP_CKSUM   |
-                  RTE_ETH_RX_OFFLOAD_KEEP_CRC  |
+                       RTE_ETH_RX_OFFLOAD_UDP_CKSUM   |
+                       RTE_ETH_RX_OFFLOAD_TCP_CKSUM   |
+                       RTE_ETH_RX_OFFLOAD_KEEP_CRC     |
 #ifdef DEV_RX_JUMBO_FRAME
-                  DEV_RX_OFFLOAD_JUMBO_FRAME |
+                       DEV_RX_OFFLOAD_JUMBO_FRAME |
 #endif
                        RTE_ETH_RX_OFFLOAD_VLAN_FILTER |
                        RTE_ETH_RX_OFFLOAD_VLAN_EXTEND |
-                  RTE_ETH_RX_OFFLOAD_SCATTER;
+                       RTE_ETH_RX_OFFLOAD_SCATTER |
+                       RTE_ETH_RX_OFFLOAD_RSS_HASH;
 
        if (!RTE_ETH_DEV_SRIOV(dev).active)
                rx_offload_capa |= RTE_ETH_RX_OFFLOAD_TCP_LRO;
@@ -60,4 +61,3 @@ u64 __sxe_tx_port_offload_capa_get(struct rte_eth_dev *dev)
 
        return tx_offload_capa;
 }
-
diff --git a/drivers/net/sxe/pf/sxe.h b/drivers/net/sxe/pf/sxe.h
index 7effe4e830..b9a25eeb43 100644
--- a/drivers/net/sxe/pf/sxe.h
+++ b/drivers/net/sxe/pf/sxe.h
@@ -57,6 +57,8 @@ struct sxe_adapter {
 
        u32 mtu;
 
+       bool rss_reta_updated;
+
 #if defined DPDK_24_11_1
        RTE_ATOMIC(bool)link_thread_running;
        RTE_ATOMIC(bool)is_stopping;
diff --git a/drivers/net/sxe/pf/sxe_ethdev.c b/drivers/net/sxe/pf/sxe_ethdev.c
index 41f5edfe6c..c015104094 100644
--- a/drivers/net/sxe/pf/sxe_ethdev.c
+++ b/drivers/net/sxe/pf/sxe_ethdev.c
@@ -347,6 +347,8 @@ static s32 sxe_dev_stop(struct rte_eth_dev *dev)
        memset(&link, 0, sizeof(link));
        rte_eth_linkstatus_set(dev, &link);
 
+       adapter->rss_reta_updated = false;
+
        dev->data->dev_started = 0;
        adapter->is_stopped = true;
 
@@ -463,6 +465,11 @@ static s32 sxe_dev_infos_get(struct rte_eth_dev *dev,
 
        dev_info->rx_desc_lim = sxe_rx_desc_lim;
        dev_info->tx_desc_lim = sxe_tx_desc_lim;
+
+       dev_info->hash_key_size = SXE_HKEY_MAX_INDEX * sizeof(u32);
+       dev_info->reta_size = RTE_ETH_RSS_RETA_SIZE_128;
+       dev_info->flow_type_rss_offloads = SXE_RSS_OFFLOAD_ALL;
+
        dev_info->speed_capa = RTE_ETH_LINK_SPEED_1G | RTE_ETH_LINK_SPEED_10G;
 
        dev_info->default_rxportconf.burst_size = 32;
@@ -621,7 +628,10 @@ static const struct eth_dev_ops sxe_eth_dev_ops = {
        .rx_queue_intr_disable  = sxe_rx_queue_intr_disable,
 
        .mtu_set                = sxe_mtu_set,
-
+       .reta_update            = sxe_rss_reta_update,
+       .reta_query             = sxe_rss_reta_query,
+       .rss_hash_update        = sxe_rss_hash_update,
+       .rss_hash_conf_get      = sxe_rss_hash_conf_get,
 
        .mac_addr_add           = sxe_mac_addr_add,
        .mac_addr_remove        = sxe_mac_addr_remove,
diff --git a/drivers/net/sxe/pf/sxe_offload.c b/drivers/net/sxe/pf/sxe_offload.c
index 2c9101eb30..2c50e6183c 100644
--- a/drivers/net/sxe/pf/sxe_offload.c
+++ b/drivers/net/sxe/pf/sxe_offload.c
@@ -15,11 +15,26 @@
 #include "sxe_queue_common.h"
 #include "sxe_offload_common.h"
 
+static u8 rss_sxe_key[40] = {
+       0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
+       0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
+       0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
+       0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
+       0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA,
+};
+
 #define SXE_4_BIT_WIDTH  (CHAR_BIT / 2)
 #define SXE_4_BIT_MASK   RTE_LEN2MASK(SXE_4_BIT_WIDTH, u8)
 #define SXE_8_BIT_WIDTH  CHAR_BIT
 #define SXE_8_BIT_MASK   UINT8_MAX
 
+#if defined SXE_DPDK_L4_FEATURES && defined SXE_DPDK_FILTER_CTRL
+u8 *sxe_rss_hash_key_get(void)
+{
+       return rss_sxe_key;
+}
+#endif
+
 u64 sxe_rx_queue_offload_capa_get(struct rte_eth_dev *dev)
 {
        return __sxe_rx_queue_offload_capa_get(dev);
@@ -42,3 +57,286 @@ u64 sxe_tx_port_offload_capa_get(struct rte_eth_dev *dev)
        return __sxe_tx_port_offload_capa_get(dev);
 }
 
+void sxe_rss_disable(struct rte_eth_dev *dev)
+{
+       struct sxe_adapter *adapter = dev->data->dev_private;
+       struct sxe_hw *hw = &adapter->hw;
+
+       PMD_INIT_FUNC_TRACE();
+
+       sxe_hw_rss_cap_switch(hw, false);
+}
+
+void sxe_rss_hash_set(struct sxe_hw *hw,
+                               struct rte_eth_rss_conf *rss_conf)
+{
+       u8  *hash_key;
+       u32 rss_key[SXE_MAX_RSS_KEY_ENTRIES];
+       u16 i;
+       u64 rss_hf;
+       u32 rss_field = 0;
+
+       PMD_INIT_FUNC_TRACE();
+
+       hash_key = rss_conf->rss_key;
+       if (hash_key != NULL) {
+               for (i = 0; i < SXE_MAX_RSS_KEY_ENTRIES; i++) {
+                       rss_key[i]  = hash_key[(i * 4)];
+                       rss_key[i] |= hash_key[(i * 4) + 1] << 8;
+                       rss_key[i] |= hash_key[(i * 4) + 2] << 16;
+                       rss_key[i] |= hash_key[(i * 4) + 3] << 24;
+               }
+               sxe_hw_rss_key_set_all(hw, rss_key);
+       }
+
+       rss_hf = rss_conf->rss_hf;
+       if (rss_hf & RTE_ETH_RSS_IPV4)
+               rss_field |= SXE_MRQC_RSS_FIELD_IPV4;
+
+       if (rss_hf & RTE_ETH_RSS_NONFRAG_IPV4_TCP)
+               rss_field |= SXE_MRQC_RSS_FIELD_IPV4_TCP;
+
+       if (rss_hf & RTE_ETH_RSS_IPV6)
+               rss_field |= SXE_MRQC_RSS_FIELD_IPV6;
+
+       if (rss_hf & RTE_ETH_RSS_NONFRAG_IPV6_TCP)
+               rss_field |= SXE_MRQC_RSS_FIELD_IPV6_TCP;
+
+       if (rss_hf & RTE_ETH_RSS_NONFRAG_IPV4_UDP)
+               rss_field |= SXE_MRQC_RSS_FIELD_IPV4_UDP;
+
+       if (rss_hf & RTE_ETH_RSS_NONFRAG_IPV6_UDP)
+               rss_field |= SXE_MRQC_RSS_FIELD_IPV6_UDP;
+
+       sxe_hw_rss_field_set(hw, rss_field);
+
+       sxe_hw_rss_cap_switch(hw, true);
+}
+
+void sxe_rss_configure(struct rte_eth_dev *dev)
+{
+       struct rte_eth_rss_conf *rss_conf;
+       struct sxe_adapter *adapter = dev->data->dev_private;
+       struct sxe_hw *hw = &adapter->hw;
+       u16 i;
+       u16 j;
+       u8  rss_indir_tbl[SXE_MAX_RETA_ENTRIES];
+
+       PMD_INIT_FUNC_TRACE();
+
+       if (!adapter->rss_reta_updated) {
+               for (i = 0, j = 0; i < SXE_MAX_RETA_ENTRIES; i++, j++) {
+                       if (j == dev->data->nb_rx_queues)
+                               j = 0;
+
+                       rss_indir_tbl[i] = j;
+               }
+
+               sxe_hw_rss_redir_tbl_set_all(hw, rss_indir_tbl);
+       }
+
+       rss_conf = &dev->data->dev_conf.rx_adv_conf.rss_conf;
+       if ((rss_conf->rss_hf & SXE_RSS_OFFLOAD_ALL) == 0) {
+               PMD_LOG_INFO(INIT, "user rss config match hw supports is 0");
+               sxe_rss_disable(dev);
+               return;
+       }
+
+       if (rss_conf->rss_key == NULL)
+               rss_conf->rss_key = rss_sxe_key;
+
+       sxe_rss_hash_set(hw, rss_conf);
+}
+
+s32 sxe_rss_reta_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_reta_entry64 *reta_conf,
+                       u16 reta_size)
+{
+       u16 i;
+       u8 j, mask;
+       u32 reta, r;
+       u16 idx, shift;
+       struct sxe_adapter *adapter = dev->data->dev_private;
+       struct rte_eth_dev_data *dev_data = dev->data;
+       struct sxe_hw *hw = &adapter->hw;
+       s32 ret = 0;
+
+       PMD_INIT_FUNC_TRACE();
+
+       if (!dev_data->dev_started) {
+               PMD_LOG_ERR(DRV,
+                       "port %d must be started before rss reta update",
+                        dev_data->port_id);
+               ret = -EIO;
+               goto l_end;
+       }
+
+       if (reta_size != RTE_ETH_RSS_RETA_SIZE_128) {
+               PMD_LOG_ERR(DRV, "The size of hash lookup table configured "
+                       "(%d) doesn't match the number hardware can supported "
+                       "(%d)", reta_size, RTE_ETH_RSS_RETA_SIZE_128);
+               ret = -EINVAL;
+               goto l_end;
+       }
+
+       for (i = 0; i < reta_size; i += SXE_4_BIT_WIDTH) {
+               idx = i / RTE_ETH_RETA_GROUP_SIZE;
+               shift = i % RTE_ETH_RETA_GROUP_SIZE;
+               mask = (u8)((reta_conf[idx].mask >> shift) &
+                                               SXE_4_BIT_MASK);
+               if (!mask)
+                       continue;
+
+               if (mask == SXE_4_BIT_MASK)
+                       r = 0;
+               else
+                       r = sxe_hw_rss_redir_tbl_get_by_idx(hw, i);
+
+               for (j = 0, reta = 0; j < SXE_4_BIT_WIDTH; j++) {
+                       if (mask & (0x1 << j)) {
+                               reta |= reta_conf[idx].reta[shift + j] <<
+                                               (CHAR_BIT * j);
+                       } else {
+                               reta |= r & (SXE_8_BIT_MASK <<
+                                       (CHAR_BIT * j));
+                       }
+               }
+
+               sxe_hw_rss_redir_tbl_set_by_idx(hw, i, reta);
+       }
+       adapter->rss_reta_updated = true;
+
+l_end:
+       return ret;
+}
+
+s32 sxe_rss_reta_query(struct rte_eth_dev *dev,
+                        struct rte_eth_rss_reta_entry64 *reta_conf,
+                        u16 reta_size)
+{
+       u16 i;
+       u8 j, mask;
+       u32 reta;
+       u16 idx, shift;
+       struct sxe_adapter *adapter = dev->data->dev_private;
+       struct sxe_hw *hw = &adapter->hw;
+       s32 ret = 0;
+
+       PMD_INIT_FUNC_TRACE();
+       if (reta_size != RTE_ETH_RSS_RETA_SIZE_128) {
+               PMD_LOG_ERR(DRV, "the size of hash lookup table configured "
+                       "(%d) doesn't match the number hardware can supported "
+                       "(%d)", reta_size, RTE_ETH_RSS_RETA_SIZE_128);
+               ret = -EINVAL;
+               goto l_end;
+       }
+
+       for (i = 0; i < reta_size; i += SXE_4_BIT_WIDTH) {
+               idx = i / RTE_ETH_RETA_GROUP_SIZE;
+               shift = i % RTE_ETH_RETA_GROUP_SIZE;
+               mask = (u8)((reta_conf[idx].mask >> shift) &
+                                               SXE_4_BIT_MASK);
+               if (!mask)
+                       continue;
+
+               reta = sxe_hw_rss_redir_tbl_get_by_idx(hw, i);
+               for (j = 0; j < SXE_4_BIT_WIDTH; j++) {
+                       if (mask & (0x1 << j)) {
+                               reta_conf[idx].reta[shift + j] =
+                                       ((reta >> (CHAR_BIT * j)) &
+                                               SXE_8_BIT_MASK);
+                       }
+               }
+       }
+
+l_end:
+       return ret;
+}
+
+s32 sxe_rss_hash_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_conf *rss_conf)
+{
+       struct sxe_adapter *adapter = dev->data->dev_private;
+       struct sxe_hw *hw = &adapter->hw;
+       u64 rss_hf;
+       s32 ret = 0;
+
+       rss_hf = (rss_conf->rss_hf & SXE_RSS_OFFLOAD_ALL);
+
+       if (!sxe_hw_is_rss_enabled(hw)) {
+               if (rss_hf != 0) {
+                       PMD_LOG_ERR(DRV, "rss not init but want set");
+                       ret = -EINVAL;
+                       goto l_end;
+               }
+
+               goto l_end;
+       }
+
+       if (rss_hf == 0) {
+               PMD_LOG_ERR(DRV, "rss init but want disable it");
+               ret = -EINVAL;
+               goto l_end;
+       }
+
+       sxe_rss_hash_set(hw, rss_conf);
+
+l_end:
+       return ret;
+}
+
+s32 sxe_rss_hash_conf_get(struct rte_eth_dev *dev,
+                               struct rte_eth_rss_conf *rss_conf)
+{
+       struct sxe_adapter *adapter = dev->data->dev_private;
+       struct sxe_hw *hw = &adapter->hw;
+       u8 *hash_key;
+       u32 rss_field;
+       u32 rss_key;
+       u64 rss_hf;
+       u16 i;
+
+       hash_key = rss_conf->rss_key;
+       if (hash_key != NULL) {
+               for (i = 0; i < SXE_MAX_RSS_KEY_ENTRIES; i++) {
+                       rss_key = sxe_hw_rss_key_get_by_idx(hw, i);
+                       hash_key[(i * 4)] = rss_key & 0x000000FF;
+                       hash_key[(i * 4) + 1] = (rss_key >> 8) & 0x000000FF;
+                       hash_key[(i * 4) + 2] = (rss_key >> 16) & 0x000000FF;
+                       hash_key[(i * 4) + 3] = (rss_key >> 24) & 0x000000FF;
+               }
+       }
+
+
+       if (!sxe_hw_is_rss_enabled(hw)) {
+               rss_conf->rss_hf = 0;
+               PMD_LOG_INFO(DRV, "rss not enabled, return 0");
+               goto l_end;
+       }
+
+       rss_hf = 0;
+       rss_field = sxe_hw_rss_field_get(hw);
+       if (rss_field & SXE_MRQC_RSS_FIELD_IPV4)
+               rss_hf |= RTE_ETH_RSS_IPV4;
+
+       if (rss_field & SXE_MRQC_RSS_FIELD_IPV4_TCP)
+               rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_TCP;
+
+       if (rss_field & SXE_MRQC_RSS_FIELD_IPV4_UDP)
+               rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_UDP;
+
+       if (rss_field & SXE_MRQC_RSS_FIELD_IPV6)
+               rss_hf |= RTE_ETH_RSS_IPV6;
+
+       if (rss_field & SXE_MRQC_RSS_FIELD_IPV6_TCP)
+               rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_TCP;
+
+       if (rss_field & SXE_MRQC_RSS_FIELD_IPV6_UDP)
+               rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_UDP;
+
+       PMD_LOG_DEBUG(DRV, "got rss hash func=0x%" SXE_PRIX64, rss_hf);
+       rss_conf->rss_hf = rss_hf;
+
+l_end:
+       return 0;
+}
diff --git a/drivers/net/sxe/pf/sxe_offload.h b/drivers/net/sxe/pf/sxe_offload.h
index a70d6bf94b..458b6464c5 100644
--- a/drivers/net/sxe/pf/sxe_offload.h
+++ b/drivers/net/sxe/pf/sxe_offload.h
@@ -7,6 +7,21 @@
 
 #include "sxe_hw.h"
 
+#define SXE_RSS_OFFLOAD_ALL ( \
+               RTE_ETH_RSS_IPV4 | \
+               RTE_ETH_RSS_NONFRAG_IPV4_TCP | \
+               RTE_ETH_RSS_NONFRAG_IPV4_UDP | \
+               RTE_ETH_RSS_IPV6 | \
+               RTE_ETH_RSS_NONFRAG_IPV6_TCP | \
+               RTE_ETH_RSS_NONFRAG_IPV6_UDP)
+
+#if defined SXE_DPDK_L4_FEATURES && defined SXE_DPDK_FILTER_CTRL
+u8 *sxe_rss_hash_key_get(void);
+#endif
+
+void sxe_rss_hash_set(struct sxe_hw *hw,
+                               struct rte_eth_rss_conf *rss_conf);
+
 u64 sxe_rx_queue_offload_capa_get(struct rte_eth_dev *dev);
 
 u64 sxe_rx_port_offload_capa_get(struct rte_eth_dev *dev);
@@ -15,4 +30,22 @@ u64 sxe_tx_queue_offload_capa_get(struct rte_eth_dev *dev);
 
 u64 sxe_tx_port_offload_capa_get(struct rte_eth_dev *dev);
 
+void sxe_rss_disable(struct rte_eth_dev *dev);
+
+void sxe_rss_configure(struct rte_eth_dev *dev);
+
+s32 sxe_rss_reta_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_reta_entry64 *reta_conf,
+                       u16 reta_size);
+
+s32 sxe_rss_reta_query(struct rte_eth_dev *dev,
+                        struct rte_eth_rss_reta_entry64 *reta_conf,
+                        u16 reta_size);
+
+s32 sxe_rss_hash_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_conf *rss_conf);
+
+s32 sxe_rss_hash_conf_get(struct rte_eth_dev *dev,
+                               struct rte_eth_rss_conf *rss_conf);
+
 #endif
-- 
2.18.4

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