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authorYahui Cao <yahui.cao@intel.com>2019-10-18 19:16:00 +0800
committerFerruh Yigit <ferruh.yigit@intel.com>2019-10-20 15:43:28 +0100
commit8dd7a19472a7f63479b6ed5ea144f178352e56b6 (patch)
tree0c84183806bb1561fa76b1b4b046ccbfde51304b
parentbc5d08cb3e16bbf622a354b0163bbcf50c379770 (diff)
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net/ice: reject duplicated flow for FDIR
Enable duplication lookup for existing flow director rule entry. Signed-off-by: Yahui Cao <yahui.cao@intel.com> Acked-by: Qi Zhang <qi.z.zhang@intel.com> Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>
-rw-r--r--drivers/net/ice/Makefile2
-rw-r--r--drivers/net/ice/ice_ethdev.h17
-rw-r--r--drivers/net/ice/ice_fdir_filter.c185
3 files changed, 196 insertions, 8 deletions
diff --git a/drivers/net/ice/Makefile b/drivers/net/ice/Makefile
index f7e1852..884fc40 100644
--- a/drivers/net/ice/Makefile
+++ b/drivers/net/ice/Makefile
@@ -13,7 +13,7 @@ CFLAGS += $(WERROR_FLAGS)
CFLAGS += -DALLOW_EXPERIMENTAL_API
LDLIBS += -lrte_eal -lrte_mbuf -lrte_ethdev -lrte_kvargs
-LDLIBS += -lrte_bus_pci -lrte_mempool
+LDLIBS += -lrte_bus_pci -lrte_mempool -lrte_hash
EXPORT_MAP := rte_pmd_ice_version.map
diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h
index 5129b3b..ab8b452 100644
--- a/drivers/net/ice/ice_ethdev.h
+++ b/drivers/net/ice/ice_ethdev.h
@@ -256,6 +256,20 @@ struct ice_fdir_filter_conf {
uint64_t input_set;
};
+#define ICE_MAX_FDIR_FILTER_NUM (1024 * 16)
+
+struct ice_fdir_fltr_pattern {
+ enum ice_fltr_ptype flow_type;
+
+ union {
+ struct ice_fdir_v4 v4;
+ struct ice_fdir_v6 v6;
+ } ip, mask;
+
+ struct ice_fdir_extra ext_data;
+ struct ice_fdir_extra ext_mask;
+};
+
#define ICE_FDIR_COUNTER_DEFAULT_POOL_SIZE 1
#define ICE_FDIR_COUNTER_MAX_POOL_SIZE 32
#define ICE_FDIR_COUNTERS_PER_BLOCK 256
@@ -301,6 +315,9 @@ struct ice_fdir_info {
uint64_t dma_addr; /* physic address of packet memory*/
struct ice_fdir_filter_conf conf;
+ struct ice_fdir_filter_conf **hash_map;
+ struct rte_hash *hash_table;
+
struct ice_fdir_counter_pool_container counter;
};
diff --git a/drivers/net/ice/ice_fdir_filter.c b/drivers/net/ice/ice_fdir_filter.c
index b327ead..1b6101e 100644
--- a/drivers/net/ice/ice_fdir_filter.c
+++ b/drivers/net/ice/ice_fdir_filter.c
@@ -1,5 +1,7 @@
#include <stdio.h>
#include <rte_flow.h>
+#include <rte_hash.h>
+#include <rte_hash_crc.h>
#include "base/ice_fdir.h"
#include "base/ice_flow.h"
#include "base/ice_type.h"
@@ -272,6 +274,60 @@ ice_fdir_counter_free(__rte_unused struct ice_pf *pf,
}
}
+static int
+ice_fdir_init_filter_list(struct ice_pf *pf)
+{
+ struct rte_eth_dev *dev = pf->adapter->eth_dev;
+ struct ice_fdir_info *fdir_info = &pf->fdir;
+ char fdir_hash_name[RTE_HASH_NAMESIZE];
+ int ret;
+
+ struct rte_hash_parameters fdir_hash_params = {
+ .name = fdir_hash_name,
+ .entries = ICE_MAX_FDIR_FILTER_NUM,
+ .key_len = sizeof(struct ice_fdir_fltr_pattern),
+ .hash_func = rte_hash_crc,
+ .hash_func_init_val = 0,
+ .socket_id = rte_socket_id(),
+ };
+
+ /* Initialize hash */
+ snprintf(fdir_hash_name, RTE_HASH_NAMESIZE,
+ "fdir_%s", dev->device->name);
+ fdir_info->hash_table = rte_hash_create(&fdir_hash_params);
+ if (!fdir_info->hash_table) {
+ PMD_INIT_LOG(ERR, "Failed to create fdir hash table!");
+ return -EINVAL;
+ }
+ fdir_info->hash_map = rte_zmalloc("ice_fdir_hash_map",
+ sizeof(*fdir_info->hash_map) *
+ ICE_MAX_FDIR_FILTER_NUM,
+ 0);
+ if (!fdir_info->hash_map) {
+ PMD_INIT_LOG(ERR,
+ "Failed to allocate memory for fdir hash map!");
+ ret = -ENOMEM;
+ goto err_fdir_hash_map_alloc;
+ }
+ return 0;
+
+err_fdir_hash_map_alloc:
+ rte_hash_free(fdir_info->hash_table);
+
+ return ret;
+}
+
+static void
+ice_fdir_release_filter_list(struct ice_pf *pf)
+{
+ struct ice_fdir_info *fdir_info = &pf->fdir;
+
+ if (fdir_info->hash_map)
+ rte_free(fdir_info->hash_map);
+ if (fdir_info->hash_table)
+ rte_hash_free(fdir_info->hash_table);
+}
+
/*
* ice_fdir_setup - reserve and initialize the Flow Director resources
* @pf: board private structure
@@ -309,6 +365,12 @@ ice_fdir_setup(struct ice_pf *pf)
}
pf->fdir.fdir_vsi = vsi;
+ err = ice_fdir_init_filter_list(pf);
+ if (err) {
+ PMD_DRV_LOG(ERR, "Failed to init FDIR filter list.");
+ return -EINVAL;
+ }
+
err = ice_fdir_counter_init(pf);
if (err) {
PMD_DRV_LOG(ERR, "Failed to init FDIR counter.");
@@ -470,6 +532,8 @@ ice_fdir_teardown(struct ice_pf *pf)
if (err)
PMD_DRV_LOG(ERR, "Failed to release FDIR counter resource.");
+ ice_fdir_release_filter_list(pf);
+
ice_tx_queue_release(pf->fdir.txq);
pf->fdir.txq = NULL;
ice_rx_queue_release(pf->fdir.rxq);
@@ -752,6 +816,74 @@ ice_fdir_add_del_filter(struct ice_pf *pf,
return ice_fdir_programming(pf, &desc);
}
+static void
+ice_fdir_extract_fltr_key(struct ice_fdir_fltr_pattern *key,
+ struct ice_fdir_filter_conf *filter)
+{
+ struct ice_fdir_fltr *input = &filter->input;
+ memset(key, 0, sizeof(*key));
+
+ key->flow_type = input->flow_type;
+ rte_memcpy(&key->ip, &input->ip, sizeof(key->ip));
+ rte_memcpy(&key->mask, &input->mask, sizeof(key->mask));
+ rte_memcpy(&key->ext_data, &input->ext_data, sizeof(key->ext_data));
+ rte_memcpy(&key->ext_mask, &input->ext_mask, sizeof(key->ext_mask));
+}
+
+/* Check if there exists the flow director filter */
+static struct ice_fdir_filter_conf *
+ice_fdir_entry_lookup(struct ice_fdir_info *fdir_info,
+ const struct ice_fdir_fltr_pattern *key)
+{
+ int ret;
+
+ ret = rte_hash_lookup(fdir_info->hash_table, key);
+ if (ret < 0)
+ return NULL;
+
+ return fdir_info->hash_map[ret];
+}
+
+/* Add a flow director entry into the SW list */
+static int
+ice_fdir_entry_insert(struct ice_pf *pf,
+ struct ice_fdir_filter_conf *entry,
+ struct ice_fdir_fltr_pattern *key)
+{
+ struct ice_fdir_info *fdir_info = &pf->fdir;
+ int ret;
+
+ ret = rte_hash_add_key(fdir_info->hash_table, key);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR,
+ "Failed to insert fdir entry to hash table %d!",
+ ret);
+ return ret;
+ }
+ fdir_info->hash_map[ret] = entry;
+
+ return 0;
+}
+
+/* Delete a flow director entry from the SW list */
+static int
+ice_fdir_entry_del(struct ice_pf *pf, struct ice_fdir_fltr_pattern *key)
+{
+ struct ice_fdir_info *fdir_info = &pf->fdir;
+ int ret;
+
+ ret = rte_hash_del_key(fdir_info->hash_table, key);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR,
+ "Failed to delete fdir filter to hash table %d!",
+ ret);
+ return ret;
+ }
+ fdir_info->hash_map[ret] = NULL;
+
+ return 0;
+}
+
static int
ice_fdir_create_filter(struct ice_adapter *ad,
struct rte_flow *flow,
@@ -760,11 +892,22 @@ ice_fdir_create_filter(struct ice_adapter *ad,
{
struct ice_pf *pf = &ad->pf;
struct ice_fdir_filter_conf *filter = meta;
- struct ice_fdir_filter_conf *rule;
+ struct ice_fdir_info *fdir_info = &pf->fdir;
+ struct ice_fdir_filter_conf *entry, *node;
+ struct ice_fdir_fltr_pattern key;
int ret;
- rule = rte_zmalloc("fdir_entry", sizeof(*rule), 0);
- if (!rule) {
+ ice_fdir_extract_fltr_key(&key, filter);
+ node = ice_fdir_entry_lookup(fdir_info, &key);
+ if (node) {
+ rte_flow_error_set(error, EEXIST,
+ RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+ "Rule already exists!");
+ return -rte_errno;
+ }
+
+ entry = rte_zmalloc("fdir_entry", sizeof(*entry), 0);
+ if (!entry) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Failed to allocate memory");
@@ -804,9 +947,18 @@ ice_fdir_create_filter(struct ice_adapter *ad,
goto free_counter;
}
- rte_memcpy(rule, filter, sizeof(*rule));
- flow->rule = rule;
+ rte_memcpy(entry, filter, sizeof(*entry));
+ ret = ice_fdir_entry_insert(pf, entry, &key);
+ if (ret) {
+ rte_flow_error_set(error, -ret,
+ RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+ "Insert entry to table failed.");
+ goto free_entry;
+ }
+
+ flow->rule = entry;
ice_fdir_cnt_update(pf, filter->input.flow_type, false, true);
+
return 0;
free_counter:
@@ -816,7 +968,7 @@ free_counter:
}
free_entry:
- rte_free(rule);
+ rte_free(entry);
return -rte_errno;
}
@@ -826,7 +978,9 @@ ice_fdir_destroy_filter(struct ice_adapter *ad,
struct rte_flow_error *error)
{
struct ice_pf *pf = &ad->pf;
- struct ice_fdir_filter_conf *filter;
+ struct ice_fdir_info *fdir_info = &pf->fdir;
+ struct ice_fdir_filter_conf *filter, *entry;
+ struct ice_fdir_fltr_pattern key;
int ret;
filter = (struct ice_fdir_filter_conf *)flow->rule;
@@ -836,6 +990,15 @@ ice_fdir_destroy_filter(struct ice_adapter *ad,
filter->counter = NULL;
}
+ ice_fdir_extract_fltr_key(&key, filter);
+ entry = ice_fdir_entry_lookup(fdir_info, &key);
+ if (!entry) {
+ rte_flow_error_set(error, ENOENT,
+ RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+ "Can't find entry.");
+ return -rte_errno;
+ }
+
ret = ice_fdir_add_del_filter(pf, filter, false);
if (ret) {
rte_flow_error_set(error, -ret,
@@ -844,6 +1007,14 @@ ice_fdir_destroy_filter(struct ice_adapter *ad,
return -rte_errno;
}
+ ret = ice_fdir_entry_del(pf, &key);
+ if (ret) {
+ rte_flow_error_set(error, -ret,
+ RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+ "Remove entry from table failed.");
+ return -rte_errno;
+ }
+
ice_fdir_cnt_update(pf, filter->input.flow_type, false, false);
flow->rule = NULL;