This feature enable queue regions configuration for RSS in PF/VF,
so that different traffic classes or different packet
classification types can be separated to different queues in
different queue regions.This patch can set queue region range,
it include queue number in a region and the index of first queue.
This patch enable mapping between different priorities (UP) and
different traffic classes.It also enable mapping between a region
index and a sepcific flowtype(PCTYPE).It also provide the solution
of flush all configuration about queue region the above described.

Signed-off-by: Wei Zhao <wei.zh...@intel.com>
---
 drivers/net/i40e/i40e_ethdev.h            |   6 +
 drivers/net/i40e/rte_pmd_i40e.c           | 287 ++++++++++++++++++++++++++++++
 drivers/net/i40e/rte_pmd_i40e.h           |  39 ++++
 drivers/net/i40e/rte_pmd_i40e_version.map |   7 +
 4 files changed, 339 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 48abc05..1d6e9b2 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -260,6 +260,12 @@ enum i40e_flxpld_layer_idx {
 #define I40E_QOS_BW_WEIGHT_MIN 1
 /* The max bandwidth weight is 127. */
 #define I40E_QOS_BW_WEIGHT_MAX 127
+/* The max queue region index is 7. */
+#define I40E_TCREGION_MAX_INDEX 7
+/* The max queue region userpriority is 7. */
+#define I40E_REGION_USERPRIORITY_MAX_INDEX 7
+/* The max pctype index is 63. */
+#define I40E_REGION_PCTYPE_MAX_INDEX 63
 
 /**
  * The overhead from MTU to max frame size.
diff --git a/drivers/net/i40e/rte_pmd_i40e.c b/drivers/net/i40e/rte_pmd_i40e.c
index 950a0d6..5d1e1d4 100644
--- a/drivers/net/i40e/rte_pmd_i40e.c
+++ b/drivers/net/i40e/rte_pmd_i40e.c
@@ -2117,3 +2117,290 @@ int rte_pmd_i40e_ptype_mapping_replace(uint8_t port,
 
        return 0;
 }
+
+static int
+i40e_set_queue_region(struct i40e_hw *hw, struct i40e_pf *pf,
+                               struct rte_i40e_rss_region_conf *conf_ptr)
+{
+       uint32_t TCREGION, TC_OFFSET, TC_SIZE;
+       uint16_t TC_SIZE_TB[7] = {1, 2, 4, 8, 16, 32, 64};
+       uint16_t i, index;
+       uint16_t main_vsi_seid = pf->main_vsi_seid;
+       struct i40e_vsi *main_vsi = pf->main_vsi;
+       uint32_t ret = -EINVAL;
+
+       index = conf_ptr->region_id >> 1;
+       for (i = 0; i < I40E_TCREGION_MAX_INDEX; i++)
+               if (conf_ptr->queue_num == TC_SIZE_TB[i])
+                       break;
+
+       if (i == I40E_TCREGION_MAX_INDEX) {
+               printf("The region sizes should be any of the following "
+               "values: 1, 2, 4, 8, 16, 32, 64 as long as the "
+               "total number of queues do not exceed the VSI allocation");
+               return ret;
+       }
+
+       if (conf_ptr->region_id >= I40E_TCREGION_MAX_INDEX) {
+               PMD_INIT_LOG(ERR, "the queue region max index is 7");
+               return ret;
+       }
+
+       if ((conf_ptr->queue_startIndex + conf_ptr->queue_num)
+                                       > main_vsi->nb_qps) {
+               PMD_INIT_LOG(ERR, "the queue index exceeds the VSI range");
+               return ret;
+       }
+
+       TCREGION = i40e_read_rx_ctl(hw,
+                               I40E_VSIQF_TCREGION(index, main_vsi_seid));
+       if ((conf_ptr->region_id & 1) == 0) {
+               TC_OFFSET = (conf_ptr->queue_startIndex <<
+                                       I40E_VSIQF_TCREGION_TC_OFFSET_SHIFT) &
+                                       I40E_VSIQF_TCREGION_TC_OFFSET_MASK;
+               TC_SIZE = i << I40E_VSIQF_TCREGION_TC_SIZE_SHIFT;
+       } else {
+               TC_OFFSET = (conf_ptr->queue_startIndex <<
+                                       I40E_VSIQF_TCREGION_TC_OFFSET2_SHIFT) &
+                                       I40E_VSIQF_TCREGION_TC_OFFSET2_MASK;
+               TC_SIZE = i << I40E_VSIQF_TCREGION_TC_SIZE2_SHIFT;
+       }
+       TCREGION |= TC_OFFSET;
+       TCREGION |= TC_SIZE;
+       i40e_write_rx_ctl(hw, I40E_VSIQF_TCREGION(index, main_vsi_seid),
+                                               TCREGION);
+
+       return 0;
+}
+
+static int
+i40e_set_region_flowtype_pf(struct i40e_hw *hw,
+                               struct rte_i40e_rss_region_conf *conf_ptr)
+{
+       uint32_t PFQF_HREGION;
+       uint32_t ret = -EINVAL;
+       uint16_t index;
+
+       if (conf_ptr->region_id > I40E_PFQF_HREGION_MAX_INDEX) {
+               PMD_INIT_LOG(ERR, "the queue region max index is 7");
+               return ret;
+       }
+
+       if (conf_ptr->flowtype >= I40E_FILTER_PCTYPE_MAX) {
+               PMD_INIT_LOG(ERR, "the flowtype or PCTYPE max index is 63");
+               return ret;
+       }
+
+       index = conf_ptr->flowtype >> 3;
+       PFQF_HREGION = i40e_read_rx_ctl(hw, I40E_PFQF_HREGION(index));
+
+       if ((conf_ptr->flowtype & 0x7) == 0) {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_0_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_0_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 1) {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_1_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_1_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 2) {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_2_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_2_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 3) {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_3_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_3_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 4) {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_4_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_4_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 5) {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_5_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_5_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 6) {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_6_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_6_SHIFT;
+       } else {
+               PFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_PFQF_HREGION_REGION_7_SHIFT;
+               PFQF_HREGION |= 1 << I40E_PFQF_HREGION_OVERRIDE_ENA_7_SHIFT;
+       }
+
+       i40e_write_rx_ctl(hw, I40E_PFQF_HREGION(index), PFQF_HREGION);
+
+       return 0;
+}
+
+static int
+i40e_set_region_flowtype_vf(struct i40e_hw *hw,
+                               struct rte_i40e_rss_region_conf *conf_ptr)
+{
+       uint32_t VFQF_HREGION;
+       uint32_t ret = -EINVAL;
+       uint16_t index;
+
+       if (conf_ptr->region_id > I40E_VFQF_HREGION_MAX_INDEX) {
+               PMD_INIT_LOG(ERR, "the queue region max index is 7");
+               return ret;
+       }
+
+       if (conf_ptr->flowtype > I40E_REGION_PCTYPE_MAX_INDEX) {
+               PMD_INIT_LOG(ERR, "the flowtype or PCTYPE max index is 63");
+               return ret;
+       }
+
+       index = conf_ptr->flowtype >> 3;
+       VFQF_HREGION = i40e_read_rx_ctl(hw, I40E_VFQF_HREGION(index));
+
+       if ((conf_ptr->flowtype & 0x7) == 0) {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_0_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_0_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 1) {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_1_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_1_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 2) {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_2_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_2_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 3) {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_3_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_3_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 4) {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_4_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_4_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 5) {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_5_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_5_SHIFT;
+       } else if ((conf_ptr->flowtype & 0x7) == 6) {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_6_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_6_SHIFT;
+       } else {
+               VFQF_HREGION |= conf_ptr->region_id <<
+                               I40E_VFQF_HREGION_REGION_7_SHIFT;
+               VFQF_HREGION |= 1 << I40E_VFQF_HREGION_OVERRIDE_ENA_7_SHIFT;
+       }
+
+       i40e_write_rx_ctl(hw, I40E_VFQF_HREGION(index), VFQF_HREGION);
+
+       return 0;
+}
+
+static int
+i40e_set_up_tc(struct i40e_hw *hw,
+                               struct rte_i40e_rss_region_conf *conf_ptr)
+{
+       uint32_t PRTDCB_RUP2TC;
+       uint32_t ret = -EINVAL;
+
+       if (conf_ptr->UserPriority > I40E_REGION_USERPRIORITY_MAX_INDEX) {
+               PMD_INIT_LOG(ERR, "the queue region max index is 7");
+               return ret;
+       }
+
+       if (conf_ptr->TrafficClasses >= I40E_TCREGION_MAX_INDEX) {
+               PMD_INIT_LOG(ERR, "the TrafficClasses max index is 7");
+               return ret;
+       }
+
+       PRTDCB_RUP2TC  = I40E_READ_REG(hw, I40E_PRTDCB_RUP2TC);
+       if (conf_ptr->UserPriority == 0)
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP0TC_SHIFT;
+       else if (conf_ptr->UserPriority == 1)
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP1TC_SHIFT;
+       else if (conf_ptr->UserPriority == 2)
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP2TC_SHIFT;
+       else if (conf_ptr->UserPriority == 3)
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP3TC_SHIFT;
+       else if (conf_ptr->UserPriority == 4)
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP4TC_SHIFT;
+       else if (conf_ptr->UserPriority == 5)
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP5TC_SHIFT;
+       else if (conf_ptr->UserPriority == 6)
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP6TC_SHIFT;
+       else
+               PRTDCB_RUP2TC |= conf_ptr->TrafficClasses <<
+                               I40E_PRTDCB_RUP2TC_UP7TC_SHIFT;
+
+       I40E_WRITE_REG(hw, I40E_PRTDCB_RUP2TC, PRTDCB_RUP2TC);
+
+       return 0;
+}
+
+static int
+i40e_flush_region_all_conf(struct i40e_hw *hw, struct i40e_pf *pf)
+{
+       uint32_t SET_ZERO = 0;
+       uint16_t i;
+       uint16_t main_vsi_seid = pf->main_vsi_seid;
+
+       I40E_WRITE_REG(hw, I40E_PRTDCB_RUP2TC, SET_ZERO);
+
+       for (i = 0; i < 4; i++)
+               i40e_write_rx_ctl(hw, I40E_VSIQF_TCREGION(i, main_vsi_seid),
+                                               SET_ZERO);
+
+       for (i = 0; i < I40E_PFQF_HREGION_MAX_INDEX; i++)
+               i40e_write_rx_ctl(hw, I40E_PFQF_HREGION(i), SET_ZERO);
+
+       for (i = 0; i < I40E_VFQF_HREGION_MAX_INDEX; i++)
+               i40e_write_rx_ctl(hw, I40E_VFQF_HREGION(i), SET_ZERO);
+
+       return 0;
+}
+
+int rte_pmd_i40e_queue_region_conf(uint8_t port,
+                       struct rte_i40e_rss_region_conf *conf_ptr)
+{
+       struct rte_eth_dev *dev = &rte_eth_devices[port];
+       struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+       struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       enum rte_pmd_i40e_queue_region_op op_type = conf_ptr->op;
+       uint32_t ret;
+
+       if (!is_i40e_supported(dev))
+               return -ENOTSUP;
+
+       switch (op_type) {
+       case RTE_PMD_I40E_QUEUE_REGION_SET:
+               ret = i40e_set_queue_region(hw, pf, conf_ptr);
+               break;
+       case RTE_PMD_I40E_REGION_FLOWTYPE_PF_SET:
+               ret = i40e_set_region_flowtype_pf(hw, conf_ptr);
+               break;
+       case RTE_PMD_I40E_REGION_FLOWTYPE_VF_SET:
+               ret = i40e_set_region_flowtype_vf(hw, conf_ptr);
+               break;
+       case RTE_PMD_I40E_UP_TC_SET:
+               ret = i40e_set_up_tc(hw, conf_ptr);
+               break;
+
+       case RTE_PMD_I40E_REGION_ALL_FLUSH:
+               ret = i40e_flush_region_all_conf(hw, pf);
+               break;
+
+       default:
+               PMD_DRV_LOG(WARNING, "op type (%d) not supported",
+                           op_type);
+               ret = -EINVAL;
+               break;
+       }
+
+       I40E_WRITE_FLUSH(hw);
+
+       return ret;
+}
diff --git a/drivers/net/i40e/rte_pmd_i40e.h b/drivers/net/i40e/rte_pmd_i40e.h
index 356fa89..e85997a 100644
--- a/drivers/net/i40e/rte_pmd_i40e.h
+++ b/drivers/net/i40e/rte_pmd_i40e.h
@@ -91,6 +91,19 @@ enum rte_pmd_i40e_package_info {
        RTE_PMD_I40E_PKG_INFO_MAX = 0xFFFFFFFF
 };
 
+/**
+ *  Option types of queue region.
+ */
+enum rte_pmd_i40e_queue_region_op {
+       RTE_PMD_I40E_REGION_UNDEFINED = 0,
+       RTE_PMD_I40E_QUEUE_REGION_SET,      /**< add queue region set*/
+       RTE_PMD_I40E_REGION_FLOWTYPE_PF_SET,   /**< add pf region pctype set */
+       RTE_PMD_I40E_REGION_FLOWTYPE_VF_SET,   /**< add vf region pctype set */
+       RTE_PMD_I40E_UP_TC_SET,   /**< add queue region pctype set */
+       RTE_PMD_I40E_REGION_ALL_FLUSH,   /**< flush all configuration */
+       RTE_PMD_I40E_QUEUE_REGION_OP_MAX
+};
+
 #define RTE_PMD_I40E_DDP_NAME_SIZE 32
 
 /**
@@ -146,6 +159,19 @@ struct rte_pmd_i40e_ptype_mapping {
 };
 
 /**
+ * Queue region information get from CLI.
+ */
+struct rte_i40e_rss_region_conf {
+       uint8_t region_id;
+       uint8_t flowtype;
+       uint8_t queue_startIndex;
+       uint8_t queue_num;
+       uint8_t UserPriority;
+       uint8_t TrafficClasses;
+       enum rte_pmd_i40e_queue_region_op  op;
+};
+
+/**
  * Notify VF when PF link status changes.
  *
  * @param port
@@ -637,4 +663,17 @@ int rte_pmd_i40e_ptype_mapping_replace(uint8_t port,
                                       uint8_t mask,
                                       uint32_t pkt_type);
 
+/**
+ * Get RSS queue region info from CLI and do configuration for
+ * that port as the command otion type
+ *
+ * @param port
+ *    pointer to port identifier of the device
+ * @param conf_ptr
+ *    pointer to the struct that contain all the
+ *    region configuration parameters
+ */
+int rte_pmd_i40e_queue_region_conf(uint8_t port,
+               struct rte_i40e_rss_region_conf *conf_ptr);
+
 #endif /* _PMD_I40E_H_ */
diff --git a/drivers/net/i40e/rte_pmd_i40e_version.map 
b/drivers/net/i40e/rte_pmd_i40e_version.map
index 20cc980..77ac385 100644
--- a/drivers/net/i40e/rte_pmd_i40e_version.map
+++ b/drivers/net/i40e/rte_pmd_i40e_version.map
@@ -45,3 +45,10 @@ DPDK_17.08 {
        rte_pmd_i40e_get_ddp_info;
 
 } DPDK_17.05;
+
+DPDK_17.11 {
+       global:
+
+       rte_pmd_i40e_queue_region_conf;
+
+} DPDK_17.08;
-- 
2.9.3

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