[V3,1/2] net/i40e: i40e FDIR update rate optimization data structures
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Commit Message
From: Chenmin Sun <chenmin.sun@intel.com>
This patch introduces the new data structures for i40e fdir
update rate optimization.
Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
---
drivers/net/i40e/i40e_ethdev.h | 72 ++++++++++++++++++++++++++++------
1 file changed, 61 insertions(+), 11 deletions(-)
@@ -264,6 +264,15 @@ enum i40e_flxpld_layer_idx {
#define I40E_DEFAULT_DCB_APP_NUM 1
#define I40E_DEFAULT_DCB_APP_PRIO 3
+/*
+ * Struct to store flow created.
+ */
+struct rte_flow {
+ TAILQ_ENTRY(rte_flow) node;
+ enum rte_filter_type filter_type;
+ void *rule;
+};
+
/**
* The overhead from MTU to max frame size.
* Considering QinQ packet, the VLAN tag needs to be counted twice.
@@ -674,17 +683,37 @@ struct i40e_fdir_filter {
struct i40e_fdir_filter_conf fdir;
};
+/* fdir memory pool entry */
+struct i40e_fdir_entry {
+ struct rte_flow flow;
+ uint32_t idx;
+};
+
+/* pre-allocated fdir memory pool */
+struct i40e_fdir_flow_pool {
+ /* a bitmap to manage the fdir pool */
+ struct rte_bitmap *b;
+ /* the size the pool is pf->fdir->fdir_space_size */
+ struct i40e_fdir_entry *pool;
+};
+
+#define FLOW_TO_FLOW_BITMAP(f) \
+ container_of((f), struct i40e_fdir_entry, flow)
+
TAILQ_HEAD(i40e_fdir_filter_list, i40e_fdir_filter);
/*
* A structure used to define fields of a FDIR related info.
*/
struct i40e_fdir_info {
+#define PRG_PKT_CNT 128
+
struct i40e_vsi *fdir_vsi; /* pointer to fdir VSI structure */
uint16_t match_counter_index; /* Statistic counter index used for fdir*/
struct i40e_tx_queue *txq;
struct i40e_rx_queue *rxq;
void *prg_pkt; /* memory for fdir program packet */
uint64_t dma_addr; /* physic address of packet memory*/
+
/* input set bits for each pctype */
uint64_t input_set[I40E_FILTER_PCTYPE_MAX];
/*
@@ -697,6 +726,36 @@ struct i40e_fdir_info {
struct i40e_fdir_filter_list fdir_list;
struct i40e_fdir_filter **hash_map;
struct rte_hash *hash_table;
+ /* An array to store the inserted rules input */
+ struct i40e_fdir_filter *fdir_filter_array;
+
+ /*
+ * Priority ordering at filter invalidation(destroying a flow) between
+ * "best effort" space and "guaranteed" space.
+ *
+ * 0 = At filter invalidation, the hardware first tries to increment the
+ * "best effort" space. The "guaranteed" space is incremented only when
+ * the global "best effort" space is at it max value or the "best effort"
+ * space of the PF is at its max value.
+ * 1 = At filter invalidation, the hardware first tries to increment its
+ * "guaranteed" space. The "best effort" space is incremented only when
+ * it is already at its max value.
+ */
+ uint32_t fdir_invalprio;
+ /* the total size of the fdir, this number is the sum of the guaranteed +
+ * shared space
+ */
+ uint32_t fdir_space_size;
+ /* the actual number of the fdir rules in hardware, initialized as 0 */
+ uint32_t fdir_actual_cnt;
+ /* the guaranteed space of the fdir */
+ uint32_t fdir_guarantee_free_space;
+ /* the available guaranteed space, initialized as the
+ * fdir_guarantee_free_space and dynamically maintained
+ */
+ uint32_t fdir_guarantee_available_space;
+ /* the pre-allocated pool of the rte_flow */
+ struct i40e_fdir_flow_pool fdir_flow_pool;
/* Mark if flex pit and mask is set */
bool flex_pit_flag[I40E_MAX_FLXPLD_LAYER];
@@ -894,15 +953,6 @@ struct i40e_mirror_rule {
TAILQ_HEAD(i40e_mirror_rule_list, i40e_mirror_rule);
-/*
- * Struct to store flow created.
- */
-struct rte_flow {
- TAILQ_ENTRY(rte_flow) node;
- enum rte_filter_type filter_type;
- void *rule;
-};
-
TAILQ_HEAD(i40e_flow_list, rte_flow);
/* Struct to store Traffic Manager shaper profile. */
@@ -1335,8 +1385,8 @@ int i40e_add_del_fdir_filter(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *filter,
bool add);
int i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
- const struct i40e_fdir_filter_conf *filter,
- bool add);
+ const struct i40e_fdir_filter_conf *filter,
+ bool add);
int i40e_dev_tunnel_filter_set(struct i40e_pf *pf,
struct rte_eth_tunnel_filter_conf *tunnel_filter,
uint8_t add);