[ovs-dev] [PATCH 54/62] Add QoS function offload support by meter

Tao YunXiang taoyunxiang at cmss.chinamobile.com
Mon Dec 28 09:25:12 UTC 2020


From: Taoyunxiang <taoyunxiang at cmss.chinamobile.com>

Code Source From: Self Code
Description:
This is the init version to support QoS function offload,
which is handled by meter aciton. So this change offload meter
action from openflow.
Jira:  #[Optional]
市场项目编号(名称):[Optional]

Add QoS function offload support by meter.
---
 include/openvswitch/ofp-meter.h |   1 +
 lib/dpif-netdev.c               | 162 +++++++++++++++++++++++---
 lib/dpif-netdev.h               |  19 +++
 lib/dpif-netlink.c              |   5 +-
 lib/dpif-provider.h             |   5 +
 lib/dpif.c                      |  66 +++++++++++
 lib/dpif.h                      |   6 +
 lib/netdev-dpdk.c               |   6 +
 lib/netdev-dpdk.h               |   1 +
 lib/netdev-dummy.c              |   8 +-
 lib/netdev-offload-dpdk.c       | 250 +++++++++++++++++++++++++++++++++++++---
 lib/netdev-offload-provider.h   |  17 ++-
 lib/netdev-offload-tc.c         |   7 +-
 lib/netdev-offload.c            |  11 +-
 lib/netdev-offload.h            |   8 +-
 lib/ofp-meter.c                 |  14 +++
 16 files changed, 535 insertions(+), 51 deletions(-)

diff --git a/include/openvswitch/ofp-meter.h b/include/openvswitch/ofp-meter.h
index 6776eae..c6678f5 100644
--- a/include/openvswitch/ofp-meter.h
+++ b/include/openvswitch/ofp-meter.h
@@ -62,6 +62,7 @@ int ofputil_decode_meter_config(struct ofpbuf *,
                                 struct ofpbuf *bands);
 void ofputil_format_meter_config(struct ds *,
                                  const struct ofputil_meter_config *);
+uint32_t ofputil_meter_config_max_rate(struct ofputil_meter_config *conf);
 
 struct ofputil_meter_mod {
     uint16_t command;
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index a40441f..b03a2ab 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -272,23 +272,6 @@ static bool dpcls_lookup(struct dpcls *cls,
 #define DP_SUPPORTED_METER_BAND_TYPES           \
     ( 1 << OFPMBT13_DROP )
 
-struct dp_meter_band {
-    struct ofputil_meter_band up; /* type, prec_level, pad, rate, burst_size */
-    uint32_t bucket; /* In 1/1000 packets (for PKTPS), or in bits (for KBPS) */
-    uint64_t packet_count;
-    uint64_t byte_count;
-};
-
-struct dp_meter {
-    uint16_t flags;
-    uint16_t n_bands;
-    uint32_t max_delta_t;
-    uint64_t used;
-    uint64_t packet_count;
-    uint64_t byte_count;
-    struct dp_meter_band bands[];
-};
-
 struct pmd_auto_lb {
     bool auto_lb_requested;     /* Auto load balancing requested by user. */
     bool is_enabled;            /* Current status of Auto load balancing. */
@@ -424,6 +407,7 @@ struct dp_flow_offload_item {
     ovs_be32 ori_nw_dst;
 
     struct ovs_list node;
+    struct dpif *dpif;
 };
 
 struct dp_flow_offload {
@@ -1640,6 +1624,31 @@ dpif_netdev_open(const struct dpif_class *class, const char *name,
     return error;
 }
 
+static struct dpif *
+dpif_netdev_dump_create(struct dp_netdev *dp)
+{
+    struct dpif *dpif = NULL;
+
+    ovs_mutex_lock(&dp_netdev_mutex);
+    dpif = create_dpif_netdev(dp);
+    ovs_mutex_unlock(&dp_netdev_mutex);
+
+    return dpif;
+}
+
+static void
+dpif_netdev_dump_destroy(struct dp_netdev *dp, struct dpif *dpif)
+{
+    ovs_mutex_lock(&dp_netdev_mutex);
+
+    free(dpif->base_name);
+    free(dpif->full_name);
+    free(dpif);
+    ovs_refcount_unref(&dp->ref_cnt);
+
+    ovs_mutex_unlock(&dp_netdev_mutex);
+}
+
 static void
 dp_netdev_destroy_upcall_lock(struct dp_netdev *dp)
     OVS_NO_THREAD_SAFETY_ANALYSIS
@@ -1657,6 +1666,15 @@ dp_delete_meter(struct dp_netdev *dp, uint32_t meter_id)
     OVS_REQUIRES(dp->meter_locks[meter_id % N_METER_LOCKS])
 {
     if (dp->meters[meter_id]) {
+        if (dp->meters[meter_id]->offload) {
+            struct netdev_offload_meter *nom;
+
+            nom = dp->meters[meter_id]->offload;
+            nom->meter_ops->meter_destroy(nom->priv_data);
+            free(nom);
+            dp->meters[meter_id]->offload = NULL;
+        }
+
         free(dp->meters[meter_id]);
         dp->meters[meter_id] = NULL;
     }
@@ -2385,6 +2403,7 @@ dp_netdev_alloc_flow_offload(struct dp_netdev_pmd_thread *pmd,
     offload->flow = flow;
     offload->op = op;
     offload->should_jump = false;
+    offload->dpif = dpif_netdev_dump_create(pmd->dp);
 
     dp_netdev_flow_ref(flow);
     dp_netdev_pmd_try_ref(pmd);
@@ -2395,6 +2414,7 @@ dp_netdev_alloc_flow_offload(struct dp_netdev_pmd_thread *pmd,
 static void
 dp_netdev_free_flow_offload(struct dp_flow_offload_item *offload)
 {
+    dpif_netdev_dump_destroy(offload->pmd->dp, offload->dpif);
     dp_netdev_pmd_unref(offload->pmd);
     dp_netdev_flow_unref(offload->flow);
 
@@ -2480,6 +2500,7 @@ dp_netdev_flow_offload_put(struct dp_flow_offload_item *offload)
         }
     }
     info.flow_mark = mark;
+    info.dpif_class = pmd->dp->class;
     info.dpif_type_str = dpif_type_str;
     info.mod_flag = offload->mod_flag;
     info.nat_action = offload->nat_action;
@@ -2487,6 +2508,7 @@ dp_netdev_flow_offload_put(struct dp_flow_offload_item *offload)
     info.ori_nw_dst = offload->ori_nw_dst;
     info.ct_enable = false;
     info.group_id = 0;
+    info.dpif_class = pmd->dp->class;
 
     port = netdev_ports_get(in_port, dpif_type_str);
     if (!port) {
@@ -2495,7 +2517,7 @@ dp_netdev_flow_offload_put(struct dp_flow_offload_item *offload)
     /* Taking a global 'port_mutex' to fulfill thread safety restrictions for
      * the netdev-offload-dpdk module. */
     ovs_mutex_lock(&pmd->dp->port_mutex);
-    ret = netdev_flow_put(port, &offload->match,
+    ret = netdev_flow_put(offload->dpif, port, &offload->match,
                           CONST_CAST(struct nlattr *, offload->actions),
                           offload->actions_len, &flow->ufid, &info,
                           NULL);
@@ -6193,6 +6215,15 @@ dpif_netdev_meter_set(struct dpif *dpif, ofproto_meter_id meter_id,
     }
 
     meter_lock(dp, mid);
+    if (dp->meters[mid] && dp->meters[mid]->offload) {
+        struct netdev_offload_meter *nom;
+
+        nom = dp->meters[mid]->offload;
+        nom->meter_ops->meter_update(nom->priv_data, config);
+        meter->offload = nom;
+        dp->meters[mid]->offload = NULL;
+    }
+
     dp_delete_meter(dp, mid); /* Free existing meter, if any */
     dp->meters[mid] = meter;
     meter_unlock(dp, mid);
@@ -6257,7 +6288,97 @@ dpif_netdev_meter_del(struct dpif *dpif,
     return error;
 }
 
-

+static int
+dpif_netdev_meter_get_config(struct dpif *dpif,
+                             ofproto_meter_id meter_id,
+                             struct ofputil_meter_config *conf)
+{
+    struct dp_netdev *dp = get_dp_netdev(dpif);
+    uint32_t mid = meter_id.uint32;
+    struct dp_meter *meter;
+    int ret = 0, i;
+
+    if (mid >= MAX_METERS) {
+        return -1;
+    }
+    
+    meter_lock(dp, mid);
+    meter = dp->meters[mid];
+    if (!meter) {
+        ret = -1;
+        goto done;
+    }
+
+    conf->n_bands = meter->n_bands;
+    conf->bands = xzalloc(conf->n_bands * sizeof(struct dp_meter_band));
+    for (i = 0; i < meter->n_bands; ++i) {
+        conf->bands[i] = meter->bands[i].up;
+    }
+
+done:
+    meter_unlock(dp, mid);
+    return ret;
+}
+
+static int
+dpif_netdev_meter_set_offload(struct dpif *dpif,
+                              ofproto_meter_id meter_id,
+                              void *data)
+{
+    struct dp_netdev *dp = get_dp_netdev(dpif);
+    uint32_t mid = meter_id.uint32;
+    struct dp_meter *meter;
+    int ret = 0;
+
+    if (mid >= MAX_METERS) {
+        return -1;
+    }
+    
+    meter_lock(dp, mid);
+    meter = dp->meters[mid];
+    if (!meter) {
+        ret = -1;
+        goto done;
+    }
+    
+    meter->offload = (struct netdev_offload_meter *)data;
+done:
+    meter_unlock(dp, mid);
+    return ret;
+}
+
+static int
+dpif_netdev_meter_get_offload(struct dpif *dpif,
+                              ofproto_meter_id meter_id,
+                              void **data, uint16_t size)
+{
+    struct dp_netdev *dp = get_dp_netdev(dpif);
+    uint32_t mid = meter_id.uint32;
+    struct dp_meter *meter;
+    int ret = 0;
+
+    if (mid >= MAX_METERS) {
+        return -1;
+    }
+    
+    meter_lock(dp, mid);
+    meter = dp->meters[mid];
+    if (!meter) {
+        ret = -1;
+        goto done;
+    }
+    
+    *data = NULL;
+    if (meter->offload) {
+        *data = xmemdup(meter->offload, size);
+    }
+
+done:
+    meter_unlock(dp, mid);
+    return ret;
+}
+
+
 static void
 dpif_netdev_disable_upcall(struct dpif *dpif)
     OVS_NO_THREAD_SAFETY_ANALYSIS
@@ -8088,6 +8209,9 @@ const struct dpif_class dpif_netdev_class = {
     dpif_netdev_meter_set,
     dpif_netdev_meter_get,
     dpif_netdev_meter_del,
+    dpif_netdev_meter_get_config,
+    dpif_netdev_meter_set_offload,
+    dpif_netdev_meter_get_offload,
 };
 
 static void
diff --git a/lib/dpif-netdev.h b/lib/dpif-netdev.h
index 6db6ed2..123cf99 100644
--- a/lib/dpif-netdev.h
+++ b/lib/dpif-netdev.h
@@ -21,6 +21,7 @@
 #include <stddef.h>
 #include <stdint.h>
 #include "dpif.h"
+#include "netdev-offload-provider.h"
 #include "openvswitch/types.h"
 #include "dp-packet.h"
 #include "packets.h"
@@ -33,6 +34,24 @@ extern "C" {
  * headers to be aligned on a 4-byte boundary.  */
 enum { DP_NETDEV_HEADROOM = 2 + VLAN_HEADER_LEN };
 
+struct dp_meter_band {
+    struct ofputil_meter_band up; /* type, prec_level, pad, rate, burst_size */
+    uint32_t bucket; /* In 1/1000 packets (for PKTPS), or in bits (for KBPS) */
+    uint64_t packet_count;
+    uint64_t byte_count;
+};
+
+struct dp_meter {
+    uint16_t flags;
+    uint16_t n_bands;
+    uint32_t max_delta_t;
+    uint64_t used;
+    uint64_t packet_count;
+    uint64_t byte_count;
+    struct netdev_offload_meter *offload;
+    struct dp_meter_band bands[];
+};
+
 bool dpif_is_netdev(const struct dpif *);
 
 #define NR_QUEUE   1
diff --git a/lib/dpif-netlink.c b/lib/dpif-netlink.c
index 57ad657..7c921bd 100644
--- a/lib/dpif-netlink.c
+++ b/lib/dpif-netlink.c
@@ -2093,7 +2093,7 @@ parse_flow_put(struct dpif_netlink *dpif, struct dpif_flow_put *put)
     info.recirc_id_shared_with_tc = (dpif->user_features
                                      & OVS_DP_F_TC_RECIRC_SHARING);
     info.tc_modify_flow_deleted = false;
-    err = netdev_flow_put(dev, &match,
+    err = netdev_flow_put(NULL, dev, &match,
                           CONST_CAST(struct nlattr *, put->actions),
                           put->actions_len,
                           CONST_CAST(ovs_u128 *, put->ufid),
@@ -4001,6 +4001,9 @@ const struct dpif_class dpif_netlink_class = {
     dpif_netlink_meter_set,
     dpif_netlink_meter_get,
     dpif_netlink_meter_del,
+    NULL,
+    NULL,
+    NULL,
 };
 
 static int
diff --git a/lib/dpif-provider.h b/lib/dpif-provider.h
index b77317b..50fe086 100644
--- a/lib/dpif-provider.h
+++ b/lib/dpif-provider.h
@@ -616,6 +616,11 @@ struct dpif_class {
      * zero. */
     int (*meter_del)(struct dpif *, ofproto_meter_id meter_id,
                      struct ofputil_meter_stats *, uint16_t n_bands);
+    int (*meter_get_config)(struct dpif *, ofproto_meter_id meter_id,
+                            struct ofputil_meter_config *);
+    int (*meter_set_offload)(struct dpif *, ofproto_meter_id meter_id, void *);
+    int (*meter_get_offload)(struct dpif *, ofproto_meter_id meter_id, void **,
+                             uint16_t size);
 };
 
 extern const struct dpif_class dpif_netlink_class;
diff --git a/lib/dpif.c b/lib/dpif.c
index 8264bb5..9a7d312 100644
--- a/lib/dpif.c
+++ b/lib/dpif.c
@@ -66,6 +66,9 @@ COVERAGE_DEFINE(dpif_execute_with_help);
 COVERAGE_DEFINE(dpif_meter_set);
 COVERAGE_DEFINE(dpif_meter_get);
 COVERAGE_DEFINE(dpif_meter_del);
+COVERAGE_DEFINE(dpif_meter_get_config);
+COVERAGE_DEFINE(dpif_meter_set_offload);
+COVERAGE_DEFINE(dpif_meter_get_offload);
 
 static const struct dpif_class *base_dpif_classes[] = {
 #if defined(__linux__) || defined(_WIN32)
@@ -1979,3 +1982,66 @@ dpif_meter_del(struct dpif *dpif, ofproto_meter_id meter_id,
     }
     return error;
 }
+
+int
+dpif_meter_get_config(struct dpif *dpif, ofproto_meter_id meter_id,
+                      struct ofputil_meter_config *config)
+{
+    COVERAGE_INC(dpif_meter_get_config);
+
+    int error = (dpif->dpif_class->meter_get_config
+                 ? dpif->dpif_class->meter_get_config(dpif, meter_id,
+                                                      config)
+                 : EOPNOTSUPP);
+    if (!error) {
+        VLOG_DBG_RL(&dpmsg_rl, "%s: DPIF meter %"PRIu32" get config",
+                    dpif_name(dpif), meter_id.uint32);
+    } else {
+        VLOG_WARN_RL(&error_rl, "%s: failed to get DPIF meter config %"PRIu32": %s",
+                     dpif_name(dpif), meter_id.uint32, ovs_strerror(error));
+    }
+
+    return error;
+}
+
+int
+dpif_meter_set_offload(struct dpif *dpif, ofproto_meter_id meter_id,
+                       void *data)
+{
+    COVERAGE_INC(dpif_meter_set_offload);
+
+    int error = (dpif->dpif_class->meter_set_offload
+                 ? dpif->dpif_class->meter_set_offload(dpif, meter_id,
+                                                       data)
+                 : EOPNOTSUPP);
+    if (!error) {
+        VLOG_DBG_RL(&dpmsg_rl, "%s: DPIF meter %"PRIu32" offload set",
+                    dpif_name(dpif), meter_id.uint32);
+    } else {
+        VLOG_WARN_RL(&error_rl, "%s: failed to offload set DPIF meter %"PRIu32": %s",
+                     dpif_name(dpif), meter_id.uint32, ovs_strerror(error));
+    }
+
+    return error;
+}
+
+int
+dpif_meter_get_offload(struct dpif *dpif, ofproto_meter_id meter_id,
+                       void **data, uint16_t size)
+{
+    COVERAGE_INC(dpif_meter_get_offload);
+
+    int error = (dpif->dpif_class->meter_get_offload
+                 ? dpif->dpif_class->meter_get_offload(dpif, meter_id,
+                                                       data, size)
+                 : EOPNOTSUPP);
+    if (!error) {
+        VLOG_DBG_RL(&dpmsg_rl, "%s: DPIF meter %"PRIu32" offload get",
+                    dpif_name(dpif), meter_id.uint32);
+    } else {
+        VLOG_WARN_RL(&error_rl, "%s: failed to offload get DPIF meter %"PRIu32": %s",
+                     dpif_name(dpif), meter_id.uint32, ovs_strerror(error));
+    }
+
+    return error;
+}
diff --git a/lib/dpif.h b/lib/dpif.h
index 4df8f7c..c90ca71 100644
--- a/lib/dpif.h
+++ b/lib/dpif.h
@@ -891,6 +891,12 @@ int dpif_meter_get(const struct dpif *, ofproto_meter_id meter_id,
                    struct ofputil_meter_stats *, uint16_t n_bands);
 int dpif_meter_del(struct dpif *, ofproto_meter_id meter_id,
                    struct ofputil_meter_stats *, uint16_t n_bands);
+int dpif_meter_get_config(struct dpif *dpif, ofproto_meter_id meter_id,
+                          struct ofputil_meter_config *config);
+int dpif_meter_set_offload(struct dpif *dpif, ofproto_meter_id meter_id,
+                           void *data);
+int dpif_meter_get_offload(struct dpif *dpif, ofproto_meter_id meter_id,
+                           void **data, uint16_t size);
 

 /* Miscellaneous. */
 
diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index 45fc908..9f382ea 100644
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -1205,6 +1205,12 @@ netdev_dpdk_cast(const struct netdev *netdev)
     return CONTAINER_OF(netdev, struct netdev_dpdk, up);
 }
 
+int
+netdev_dpdk_get_portid(const struct netdev *netdev)
+{
+    return netdev_dpdk_cast(netdev)->port_id;
+}
+
 static struct netdev *
 netdev_dpdk_alloc(void)
 {
diff --git a/lib/netdev-dpdk.h b/lib/netdev-dpdk.h
index 811992c..7c82bc6 100644
--- a/lib/netdev-dpdk.h
+++ b/lib/netdev-dpdk.h
@@ -37,6 +37,7 @@ void netdev_dpdk_register(void);
 void free_dpdk_buf(struct dp_packet *);
 
 bool netdev_dpdk_flow_api_supported(struct netdev *);
+int netdev_dpdk_get_portid(const struct netdev *netdev);
 
 int
 netdev_dpdk_rte_flow_destroy(struct netdev *netdev,
diff --git a/lib/netdev-dummy.c b/lib/netdev-dummy.c
index 71df291..1d203c7 100644
--- a/lib/netdev-dummy.c
+++ b/lib/netdev-dummy.c
@@ -1430,10 +1430,10 @@ find_offloaded_flow(const struct hmap *offloaded_flows, const ovs_u128 *ufid)
 }
 
 static int
-netdev_dummy_flow_put(struct netdev *netdev, struct match *match,
-                      struct nlattr *actions OVS_UNUSED,
-                      size_t actions_len OVS_UNUSED,
-                      const ovs_u128 *ufid, struct offload_info *info,
+netdev_dummy_flow_put(struct dpif *dpif OVS_UNUSED, struct netdev *netdev,
+                      struct match *match, struct nlattr *actions OVS_UNUSED,
+                      size_t actions_len OVS_UNUSED, const ovs_u128 *ufid,
+                      struct offload_info *info,
                       struct dpif_flow_stats *stats)
 {
     struct netdev_dummy *dev = netdev_dummy_cast(netdev);
diff --git a/lib/netdev-offload-dpdk.c b/lib/netdev-offload-dpdk.c
index f7c8f2b..0a440eb 100644
--- a/lib/netdev-offload-dpdk.c
+++ b/lib/netdev-offload-dpdk.c
@@ -14,17 +14,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#include <config.h>
-
+#include "netdev-vport.h"
 #include <sys/types.h>
 #include <netinet/ip6.h>
+#include <config.h>
+
 #include <rte_flow.h>
+#include <rte_mtr.h>
 
 #include "cmap.h"
 #include "dpif-netdev.h"
 #include "netdev-offload-provider.h"
+#include "openvswitch/ofp-meter.h"
 #include "netdev-provider.h"
-#include "netdev-vport.h"
 #include "openvswitch/match.h"
 #include "openvswitch/vlog.h"
 #include "packets.h"
@@ -1173,6 +1175,28 @@ parse_flow_match(struct flow_patterns *patterns,
     return 0;
 }
 
+struct dpdk_meter_offload {
+    uint32_t port_id;
+    uint32_t max_rate;
+    uint32_t mp_id;
+    struct rte_flow_action_meter mc;
+};
+
+static void dpdk_meter_destroy(void *priv_data)
+{
+    struct dpdk_meter_offload *dmo = priv_data;
+    struct rte_mtr_error mtr_error;
+    
+    if (dmo) {
+        rte_mtr_meter_profile_delete(dmo->port_id,
+                                     dmo->mc.mtr_id,
+                                     &mtr_error);
+        rte_mtr_destroy(dmo->port_id, dmo->mc.mtr_id,
+                        &mtr_error);
+        free(dmo);
+    }
+}
+
 static void
 add_flow_mark_rss_actions(struct flow_actions *actions,
                           uint32_t flow_mark,
@@ -1766,8 +1790,122 @@ parse_clone_actions(struct netdev *netdev,
     return 0;
 }
 
+static struct rte_flow_action_meter*
+dpdk_meter_create(struct dpif *dpif, struct netdev *netdev, uint32_t mid)
+{
+    uint32_t port_id = netdev_dpdk_get_portid(netdev);
+    struct netdev_offload_meter *nom;
+    struct dpdk_meter_offload *dmo;
+    struct ofputil_meter_config config;
+    ofproto_meter_id meter_id;
+    struct rte_mtr_meter_profile mp;
+    struct rte_mtr_params params;
+    struct rte_mtr_error mtr_error;
+    uint32_t max_rate;
+    int ret;
+    static struct netdev_offload_meter_api dpdk_meter_offload_api;
+
+    meter_id.uint32 = mid;
+    
+    if (dpif_meter_get_config(dpif, meter_id, &config)) {
+        return NULL;
+    }
+
+    nom = xmalloc(sizeof *nom);
+    dmo = xmalloc(sizeof *dmo);
+
+    nom->meter_ops = &dpdk_meter_offload_api;
+    nom->priv_data = dmo;
+
+    memset(&mp, 0, sizeof(struct rte_mtr_meter_profile));
+    max_rate = ofputil_meter_config_max_rate(&config);
+
+    dmo->mc.mtr_id = mid;
+    dmo->port_id = port_id;
+    dmo->max_rate = max_rate;
+    dmo->mp_id = mid;
+
+    mp.alg = RTE_MTR_SRTCM_RFC2697;
+    mp.srtcm_rfc2697.cir = max_rate *1024 /8; /* rate_max Kbps*/
+    mp.srtcm_rfc2697.cbs = max_rate *1024 /8;
+    mp.srtcm_rfc2697.ebs = 0;
+
+    ret = rte_mtr_meter_profile_add(dmo->port_id, dmo->mc.mtr_id,
+                                    &mp, &mtr_error);
+    if (ret && ret != -EEXIST) {
+        VLOG_ERR("rte_mtr_meter_profile_add fail: err_type: %d err_msg: %s, portid: %d\n",
+                   mtr_error.type, mtr_error.message, netdev_dpdk_get_portid(netdev));
+        goto profile_err;
+    }
+
+    enum rte_color dscp_table[2];
+    dscp_table[0] = RTE_COLOR_YELLOW;
+    dscp_table[1] = RTE_COLOR_RED;
+
+    params.meter_profile_id = dmo->mc.mtr_id;
+    params.dscp_table = dscp_table;
+    params.meter_enable = 1;
+    params.use_prev_mtr_color = 0;
+    params.action[RTE_COLOR_GREEN]  = MTR_POLICER_ACTION_COLOR_GREEN;
+    params.action[RTE_COLOR_YELLOW] = MTR_POLICER_ACTION_DROP;
+    params.action[RTE_COLOR_RED]    = MTR_POLICER_ACTION_DROP;
+
+    ret = rte_mtr_create(dmo->port_id, dmo->mc.mtr_id, &params, 0, &mtr_error);
+    if (ret && ret != -EEXIST) {
+        VLOG_ERR("rte_mtr_create fail: err_type: %d err_msg: %s, portid: %d\n",
+                   mtr_error.type, mtr_error.message, netdev_dpdk_get_portid(netdev));
+        goto mtr_err;
+    }
+
+    dpif_meter_set_offload(dpif, meter_id, nom);
+    
+    free(config.bands);
+    return &dmo->mc;
+
+mtr_err:
+    rte_mtr_meter_profile_delete(dmo->port_id, dmo->mc.mtr_id, &mtr_error);
+
+profile_err:
+    free(nom);
+    free(dmo);
+    free(config.bands);
+    return NULL;
+}
+
+static struct rte_flow_action_meter *
+netdev_offload_dpdk_meter_conf(struct dpif *dpif, struct netdev *netdev, uint32_t mid)
+{
+    uint32_t port_id = netdev_dpdk_get_portid(netdev);
+    struct netdev_offload_meter *nom = NULL;
+    struct dpdk_meter_offload *dmo;
+    ofproto_meter_id meter_id;
+    uint32_t ret;
+    meter_id.uint32 = mid;
+
+    ret = dpif_meter_get_offload(dpif, meter_id, (void **)&nom,
+                                 sizeof *nom + sizeof *dmo);
+    if (ret) {
+        VLOG_INFO("netdev offload dpdk meter, can't get the meter");
+        return NULL;
+    }
+
+    if (!nom) {
+        return dpdk_meter_create(dpif, netdev, mid);
+    }
+
+    dmo = (struct dpdk_meter_offload *)nom->priv_data;
+    if (port_id != dmo->port_id) {
+        VLOG_INFO("dpdk meter %d is used on %d, can't be used for : %d",
+                  mid, dmo->port_id, port_id);
+        return NULL;
+    }
+
+    return &dmo->mc;
+}
+
 static int
-parse_flow_actions(struct netdev *netdev,
+parse_flow_actions(struct dpif *dpif,
+                   struct netdev *netdev,
                    struct flow_actions *actions,
                    struct nlattr *nl_actions,
                    size_t nl_actions_len,
@@ -1840,7 +1978,17 @@ parse_flow_actions(struct netdev *netdev,
             add_flow_action(actions, RTE_FLOW_ACTION_TYPE_JUMP, jump);
 
         /* for ct && ct clear no need to translate*/
-        } else if (nl_attr_type(nla) == OVS_ACTION_ATTR_CT_CLEAR ||
+        } else if (nl_attr_type(nla) == OVS_ACTION_ATTR_METER) {
+            struct rte_flow_action_meter *mc;
+            mc = netdev_offload_dpdk_meter_conf(dpif,
+                                                netdev,
+                                                nl_attr_get_u32(nla));
+            if (mc) {
+                add_flow_action(actions, RTE_FLOW_ACTION_TYPE_METER, mc);
+            }           
+
+        }
+          else if (nl_attr_type(nla) == OVS_ACTION_ATTR_CT_CLEAR ||
                    nl_attr_type(nla) == OVS_ACTION_ATTR_CT ) {
         } else {
             VLOG_DBG_RL(&rl, "Unsupported action type %d", nl_attr_type(nla));
@@ -1875,7 +2023,8 @@ parse_flow_actions(struct netdev *netdev,
 }
 
 static struct rte_flow *
-netdev_offload_dpdk_actions(struct netdev *netdev,
+netdev_offload_dpdk_actions(struct dpif *dpif,
+                            struct netdev *netdev,
                             struct flow_patterns *patterns,
                             struct nlattr *nl_actions,
                             size_t actions_len,
@@ -1889,7 +2038,7 @@ netdev_offload_dpdk_actions(struct netdev *netdev,
     struct rte_flow_error error;
     int ret,i;
 
-    ret = parse_flow_actions(netdev, &actions, nl_actions, actions_len, info);
+    ret = parse_flow_actions(dpif, netdev, &actions, nl_actions, actions_len, info);
     if (ret) {
         VLOG_DBG("TIMO DBG: after parse_flow_actions, ret is -1");
         goto out;
@@ -1927,13 +2076,79 @@ out:
     return flow;
 }
 
+#define DPDK_METER_UPATE_UP 65536 
+
+static void dpdk_meter_update(void *priv_data, void *config)
+{
+    struct dpdk_meter_offload *dmo = priv_data;
+    struct rte_mtr_meter_profile mp;
+    struct rte_mtr_error mtr_error;
+    uint32_t mp_id, new_mp_id;
+    uint32_t max_rate;
+    uint32_t ret;
+
+    if (!priv_data || !config) {
+        return;
+    }
+    
+    max_rate = ofputil_meter_config_max_rate(config);
+    if (dmo->max_rate == max_rate) {
+        return;
+    }
+
+    memset(&mp, 0, sizeof(struct rte_mtr_meter_profile));
+    mp.alg = RTE_MTR_SRTCM_RFC2697;
+    mp.srtcm_rfc2697.cir = max_rate *1024 /8;
+    mp.srtcm_rfc2697.cbs = max_rate *1024 /8;
+    mp.srtcm_rfc2697.ebs = 0;
+
+    if (dmo->mp_id < DPDK_METER_UPATE_UP) {
+        new_mp_id = dmo->mp_id + DPDK_METER_UPATE_UP;
+    } else {
+        new_mp_id = dmo->mp_id - DPDK_METER_UPATE_UP;
+    }
+
+    ret = rte_mtr_meter_profile_add(dmo->port_id, new_mp_id,
+                                    &mp, &mtr_error);
+    if (ret) {
+        VLOG_ERR("rte_mtr_meter_profile_add fail: err_type: %d err_msg: %s\n",
+                 mtr_error.type, mtr_error.message);
+        return;
+    }
+
+    ret = rte_mtr_meter_profile_update(dmo->port_id, dmo->mc.mtr_id,
+                                       new_mp_id, &mtr_error);
+    if (ret) {
+        VLOG_ERR("rte_mtr_meter_profile_update fail: err_type: %d err_msg: %s\n",
+                 mtr_error.type, mtr_error.message);
+        mp_id = new_mp_id;
+        goto out;
+    }
+
+    mp_id = dmo->mp_id;
+    dmo->mp_id = new_mp_id;
+out:
+    ret = rte_mtr_meter_profile_delete(dmo->port_id, mp_id, &mtr_error);
+    if (ret) {
+        VLOG_ERR("rte_mtr_meter_profile_update fail: err_type: %d err_msg: %s\n",
+                 mtr_error.type, mtr_error.message);
+    }
+}
+
+static struct netdev_offload_meter_api dpdk_meter_offload_api = {
+    .meter_destroy  = dpdk_meter_destroy,
+    .meter_update   = dpdk_meter_update,
+};
+
+
+
 static int
-netdev_offload_dpdk_add_flow(struct netdev *netdev,
+netdev_offload_dpdk_add_flow(struct dpif *dpif, struct netdev *netdev,
                              struct match *match,
                              struct nlattr *nl_actions,
                              size_t actions_len,
                              const ovs_u128 *ufid,
-                             struct offload_info *info)
+                             struct offload_info *info OVS_UNUSED)
 {
     struct flow_patterns patterns = { .items = NULL, .cnt = 0 };
     bool actions_offloaded = true;
@@ -1943,10 +2158,12 @@ netdev_offload_dpdk_add_flow(struct netdev *netdev,
     ret = parse_flow_match(&patterns, match, netdev, info);
     if (ret) {
         goto out;
+        VLOG_DBG("yunxiang_debug_netdev_offload_dpdk_add_flow: ret %p \n",ret);
     }
-
-    flow = netdev_offload_dpdk_actions(netdev, &patterns, nl_actions,
+    
+    flow = netdev_offload_dpdk_actions(dpif, netdev, &patterns, nl_actions,
                                        actions_len, info);
+    VLOG_DBG("yunxiang_debug_netdev_offload_dpdk_add_flow: flow %p \n",flow);
     if (!flow) {
         /* If we failed to offload the rule actions fallback to MARK+RSS
          * actions.
@@ -2075,9 +2292,10 @@ netdev_offload_dpdk_destroy_flow(struct netdev *netdev,
 }
 
 static int
-netdev_offload_dpdk_flow_put(struct netdev *netdev, struct match *match,
-                             struct nlattr *actions, size_t actions_len,
-                             const ovs_u128 *ufid, struct offload_info *info,
+netdev_offload_dpdk_flow_put(struct dpif *dpif, struct netdev *netdev,
+                             struct match *match, struct nlattr *actions,
+                             size_t actions_len, const ovs_u128 *ufid,
+                             struct offload_info *info,
                              struct dpif_flow_stats *stats)
 {
     struct ufid_to_rte_flow_data *rte_flow_data;
@@ -2088,10 +2306,12 @@ netdev_offload_dpdk_flow_put(struct netdev *netdev, struct match *match,
      * Here destroy the old rte flow first before adding a new one.
      */
     rte_flow_data = ufid_to_rte_flow_data_find(ufid);
+    VLOG_DBG("yunxiang_debug_netdev_offload_dpdk_flow_put,rte_flow_data=%p",rte_flow_data);
     if (rte_flow_data && rte_flow_data->rte_flow) {
         ret = netdev_offload_dpdk_destroy_flow(netdev, ufid,
                                                rte_flow_data->rte_flow);
         if (ret < 0) {
+            VLOG_DBG("yunxiang_debug_netdev_offload_dpdk_flow_put,ret=%p",ret);
             return ret;
         }
     }
@@ -2104,7 +2324,7 @@ netdev_offload_dpdk_flow_put(struct netdev *netdev, struct match *match,
     if (stats) {
         memset(stats, 0, sizeof *stats);
     }
-    return netdev_offload_dpdk_add_flow(netdev, match, actions,
+    return netdev_offload_dpdk_add_flow(dpif, netdev, match, actions,
                                         actions_len, ufid, info);
 }
 
diff --git a/lib/netdev-offload-provider.h b/lib/netdev-offload-provider.h
index 5a809c0..f1830f8 100644
--- a/lib/netdev-offload-provider.h
+++ b/lib/netdev-offload-provider.h
@@ -63,9 +63,10 @@ struct netdev_flow_api {
      * 'stats' is populated according to the rules set out in the description
      * above 'struct dpif_flow_put'.
      * Return 0 if successful, otherwise returns a positive errno value. */
-    int (*flow_put)(struct netdev *, struct match *, struct nlattr *actions,
-                    size_t actions_len, const ovs_u128 *ufid,
-                    struct offload_info *info, struct dpif_flow_stats *);
+    int (*flow_put)(struct dpif *, struct netdev *, struct match *,
+                    struct nlattr *actions, size_t actions_len,
+                    const ovs_u128 *ufid, struct offload_info *info,
+                    struct dpif_flow_stats *);
 
     /* Queries a flow specified by ufid on netdev.
      * Fills output buffer as 'wbuffer' in flow_dump_next, which
@@ -87,6 +88,16 @@ struct netdev_flow_api {
     int (*init_flow_api)(struct netdev *);
 };
 
+struct netdev_offload_meter_api {
+    void (*meter_destroy)(void *);
+    void (*meter_update)(void *, void *);
+};
+
+struct netdev_offload_meter {
+    void *priv_data;
+    struct netdev_offload_meter_api *meter_ops;
+};
+
 int netdev_register_flow_api_provider(const struct netdev_flow_api *);
 int netdev_unregister_flow_api_provider(const char *type);
 bool netdev_flow_api_equals(const struct netdev *, const struct netdev *);
diff --git a/lib/netdev-offload-tc.c b/lib/netdev-offload-tc.c
index 6c76f69..ba4bd67 100644
--- a/lib/netdev-offload-tc.c
+++ b/lib/netdev-offload-tc.c
@@ -1354,9 +1354,10 @@ flower_match_to_tun_opt(struct tc_flower *flower, const struct flow_tnl *tnl,
 }
 
 static int
-netdev_tc_flow_put(struct netdev *netdev, struct match *match,
-                   struct nlattr *actions, size_t actions_len,
-                   const ovs_u128 *ufid, struct offload_info *info,
+netdev_tc_flow_put(struct dpif *dpif OVS_UNUSED, struct netdev *netdev,
+                   struct match *match, struct nlattr *actions,
+                   size_t actions_len, const ovs_u128 *ufid,
+                   struct offload_info *info,
                    struct dpif_flow_stats *stats)
 {
     static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
diff --git a/lib/netdev-offload.c b/lib/netdev-offload.c
index e054bb0..135a29a 100644
--- a/lib/netdev-offload.c
+++ b/lib/netdev-offload.c
@@ -239,17 +239,18 @@ netdev_flow_dump_next(struct netdev_flow_dump *dump, struct match *match,
 
 
 int
-netdev_flow_put(struct netdev *netdev, struct match *match,
-                struct nlattr *actions, size_t act_len,
-                const ovs_u128 *ufid, struct offload_info *info,
+netdev_flow_put(struct dpif *dpif, struct netdev *netdev,
+                struct match *match, struct nlattr *actions,
+                size_t act_len, const ovs_u128 *ufid,
+                struct offload_info *info,
                 struct dpif_flow_stats *stats)
 {
     const struct netdev_flow_api *flow_api =
         ovsrcu_get(const struct netdev_flow_api *, &netdev->flow_api);
 
     return (flow_api && flow_api->flow_put)
-           ? flow_api->flow_put(netdev, match, actions, act_len, ufid,
-                                info, stats)
+           ? flow_api->flow_put(dpif, netdev, match, actions,
+                                act_len, ufid, info, stats)
            : EOPNOTSUPP;
 }
 
diff --git a/lib/netdev-offload.h b/lib/netdev-offload.h
index f2c4fbc..2d43059 100644
--- a/lib/netdev-offload.h
+++ b/lib/netdev-offload.h
@@ -20,8 +20,12 @@
 
 #include "openvswitch/netdev.h"
 #include "openvswitch/types.h"
+#include "dpif-provider.h"
 #include "packets.h"
 #include "flow.h"
+
+
+
 #include "conntrack.h"
 
 #ifdef  __cplusplus
@@ -62,6 +66,7 @@ struct netdev_flow_dump {
 
 /* Flow offloading. */
 struct offload_info {
+    const struct dpif_class *dpif_class;
     ovs_be16 tp_dst_port; /* Destination port for tunnel in SET action */
     uint8_t tunnel_csum_on; /* Tunnel header with checksum */
 
@@ -96,7 +101,8 @@ bool netdev_flow_dump_next(struct netdev_flow_dump *, struct match *,
                           struct nlattr **actions, struct dpif_flow_stats *,
                           struct dpif_flow_attrs *, ovs_u128 *ufid,
                           struct ofpbuf *rbuffer, struct ofpbuf *wbuffer);
-int netdev_flow_put(struct netdev *, struct match *, struct nlattr *actions,
+int netdev_flow_put(struct dpif *, struct netdev *,
+                    struct match *, struct nlattr *actions,
                     size_t actions_len, const ovs_u128 *,
                     struct offload_info *, struct dpif_flow_stats *);
 int netdev_flow_get(struct netdev *, struct match *, struct nlattr **actions,
diff --git a/lib/ofp-meter.c b/lib/ofp-meter.c
index 9ea40a0..633924e 100644
--- a/lib/ofp-meter.c
+++ b/lib/ofp-meter.c
@@ -807,3 +807,17 @@ ofputil_format_meter_mod(struct ds *s, const struct ofputil_meter_mod *mm)
 
     ofputil_format_meter_config(s, &mm->meter);
 }
+
+uint32_t
+ofputil_meter_config_max_rate(struct ofputil_meter_config *conf)
+{
+    uint32_t i, max_rate = 0;
+    for (i = 0; i < conf->n_bands; i++) {
+        if (max_rate < conf->bands[i].rate) {
+            max_rate = conf->bands[i].rate;
+        }
+    }
+
+    return max_rate;
+}
+
-- 
1.8.3.1





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