Hi, Xiaolong

> -----Original Message-----
> From: Ye, Xiaolong
> Sent: Sunday, September 8, 2019 11:56 PM
> To: Wang, Ying A <ying.a.w...@intel.com>
> Cc: Zhang, Qi Z <qi.z.zh...@intel.com>; Yang, Qiming
> <qiming.y...@intel.com>; dev@dpdk.org; Zhao1, Wei <wei.zh...@intel.com>
> Subject: Re: [PATCH 2/4] net/ice: rework for generic flow enabling
> 
> On 09/04, Ying Wang wrote:
> >The patch reworks the generic flow API (rte_flow) implementation.
> >It introduces an abstract layer which provides a unified interface for
> >low-level filter engine (switch, fdir, hash) to register supported
> >patterns and actions and implement flow validate/create/destroy/flush/
> >query activities.
> >
> >The patch also removes the existing switch filter implementation to
> >avoid compile error. Switch filter implementation for the new framework
> >will be added in the following patch.
> >
> >Signed-off-by: Ying Wang <ying.a.w...@intel.com>
> >---
> > drivers/net/ice/ice_ethdev.c        |  22 +-
> > drivers/net/ice/ice_ethdev.h        |  15 +-
> > drivers/net/ice/ice_generic_flow.c  | 768
> >+++++++++++++++--------------------
> > drivers/net/ice/ice_generic_flow.h  | 782
> >++++++++----------------------------
> > drivers/net/ice/ice_switch_filter.c | 511 -----------------------
> >drivers/net/ice/ice_switch_filter.h |  18 -
> > 6 files changed, 525 insertions(+), 1591 deletions(-)
> >
> >diff --git a/drivers/net/ice/ice_ethdev.c
> >b/drivers/net/ice/ice_ethdev.c index 4e0645db1..647aca3ed 100644
> >--- a/drivers/net/ice/ice_ethdev.c
> >+++ b/drivers/net/ice/ice_ethdev.c
> >@@ -15,7 +15,7 @@
> > #include "base/ice_dcb.h"
> > #include "ice_ethdev.h"
> > #include "ice_rxtx.h"
> >-#include "ice_switch_filter.h"
> >+#include "ice_generic_flow.h"
> >
> > /* devargs */
> > #define ICE_SAFE_MODE_SUPPORT_ARG "safe-mode-support"
> >@@ -1677,7 +1677,11 @@ ice_dev_init(struct rte_eth_dev *dev)
> >     /* get base queue pairs index  in the device */
> >     ice_base_queue_get(pf);
> >
> >-    TAILQ_INIT(&pf->flow_list);
> >+    ret = ice_flow_init(ad);
> >+    if (ret) {
> >+            PMD_INIT_LOG(ERR, "Failed to initialize flow");
> >+            return ret;
> >+    }
> >
> >     return 0;
> >
> >@@ -1796,6 +1800,8 @@ ice_dev_close(struct rte_eth_dev *dev)  {
> >     struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> >     struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data-
> >dev_private);
> >+    struct ice_adapter *ad =
> >+            ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
> >
> >     /* Since stop will make link down, then the link event will be
> >      * triggered, disable the irq firstly to avoid the port_infoe etc @@
> >-1806,6 +1812,8 @@ ice_dev_close(struct rte_eth_dev *dev)
> >
> >     ice_dev_stop(dev);
> >
> >+    ice_flow_uninit(ad);
> >+
> >     /* release all queue resource */
> >     ice_free_queues(dev);
> >
> >@@ -1822,8 +1830,6 @@ ice_dev_uninit(struct rte_eth_dev *dev)  {
> >     struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
> >     struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
> >-    struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> >-    struct rte_flow *p_flow;
> >
> >     ice_dev_close(dev);
> >
> >@@ -1840,14 +1846,6 @@ ice_dev_uninit(struct rte_eth_dev *dev)
> >     /* unregister callback func from eal lib */
> >     rte_intr_callback_unregister(intr_handle,
> >                                  ice_interrupt_handler, dev);
> >-
> >-    /* Remove all flows */
> >-    while ((p_flow = TAILQ_FIRST(&pf->flow_list))) {
> >-            TAILQ_REMOVE(&pf->flow_list, p_flow, node);
> >-            ice_free_switch_filter_rule(p_flow->rule);
> >-            rte_free(p_flow);
> >-    }
> >-
> >     return 0;
> > }
> >
> >diff --git a/drivers/net/ice/ice_ethdev.h
> >b/drivers/net/ice/ice_ethdev.h index 9bf5de08d..d1d07641d 100644
> >--- a/drivers/net/ice/ice_ethdev.h
> >+++ b/drivers/net/ice/ice_ethdev.h
> >@@ -241,16 +241,14 @@ struct ice_vsi {
> >     bool offset_loaded;
> > };
> >
> >-extern const struct rte_flow_ops ice_flow_ops;
> >-
> >-/* Struct to store flow created. */
> >-struct rte_flow {
> >-    TAILQ_ENTRY(rte_flow) node;
> >-    void *rule;
> >-};
> >
> >+struct rte_flow;
> > TAILQ_HEAD(ice_flow_list, rte_flow);
> >
> >+
> >+struct ice_flow_parser;
> >+TAILQ_HEAD(ice_parser_list, ice_flow_parser);
> >+
> > struct ice_pf {
> >     struct ice_adapter *adapter; /* The adapter this PF associate to */
> >     struct ice_vsi *main_vsi; /* pointer to main VSI structure */ @@
> >-278,6 +276,9 @@ struct ice_pf {
> >     bool offset_loaded;
> >     bool adapter_stopped;
> >     struct ice_flow_list flow_list;
> >+    struct ice_parser_list rss_parser_list;
> >+    struct ice_parser_list perm_parser_list;
> >+    struct ice_parser_list dist_parser_list;
> > };
> >
> > /**
> >diff --git a/drivers/net/ice/ice_generic_flow.c
> >b/drivers/net/ice/ice_generic_flow.c
> >index 1c0adc779..aa11d6170 100644
> >--- a/drivers/net/ice/ice_generic_flow.c
> >+++ b/drivers/net/ice/ice_generic_flow.c
> >@@ -17,7 +17,22 @@
> >
> > #include "ice_ethdev.h"
> > #include "ice_generic_flow.h"
> >-#include "ice_switch_filter.h"
> >+
> >+/**
> >+ * Non-pipeline mode, fdir and swith both used as distributor,
> >+ * fdir used first, switch used as fdir's backup.
> >+ */
> >+#define ICE_FLOW_CLASSIFY_STAGE_DISTRIBUTOR_ONLY 0 /*Pipeline mode,
> >+switch used at permission stage*/ #define
> >+ICE_FLOW_CLASSIFY_STAGE_PERMISSION 1 /*Pipeline mode, fdir used at
> >+distributor stage*/ #define ICE_FLOW_CLASSIFY_STAGE_DISTRIBUTOR 2
> >+
> >+static int ice_pipeline_stage =
> >+            ICE_FLOW_CLASSIFY_STAGE_DISTRIBUTOR_ONLY;
> >+
> >+static struct ice_engine_list engine_list =
> >+            TAILQ_HEAD_INITIALIZER(engine_list);
> >
> > static int ice_flow_validate(struct rte_eth_dev *dev,
> >             const struct rte_flow_attr *attr,
> >@@ -34,17 +49,153 @@ static int ice_flow_destroy(struct rte_eth_dev *dev,
> >             struct rte_flow_error *error);
> > static int ice_flow_flush(struct rte_eth_dev *dev,
> >             struct rte_flow_error *error);
> >+static int ice_flow_query_count(struct rte_eth_dev *dev,
> >+            struct rte_flow *flow,
> >+            const struct rte_flow_action *actions,
> >+            void *data,
> >+            struct rte_flow_error *error);
> >
> > const struct rte_flow_ops ice_flow_ops = {
> >     .validate = ice_flow_validate,
> >     .create = ice_flow_create,
> >     .destroy = ice_flow_destroy,
> >     .flush = ice_flow_flush,
> >+    .query = ice_flow_query_count,
> > };
> >
> >+
> >+void
> >+ice_register_flow_engine(struct ice_flow_engine *engine) {
> >+    TAILQ_INSERT_TAIL(&engine_list, engine, node); }
> >+
> >+int
> >+ice_flow_init(struct ice_adapter *ad)
> >+{
> >+    int ret = 0;
> >+    struct ice_pf *pf = &ad->pf;
> >+    void *temp;
> >+    struct ice_flow_engine *engine = NULL;
> >+
> >+    TAILQ_INIT(&pf->flow_list);
> >+    TAILQ_INIT(&pf->rss_parser_list);
> >+    TAILQ_INIT(&pf->perm_parser_list);
> >+    TAILQ_INIT(&pf->dist_parser_list);
> >+
> >+    TAILQ_FOREACH_SAFE(engine, &engine_list, node, temp) {
> >+            if (engine->init == NULL)
> 
> What about provide some debug log info here? Adding one engine name
> member to struct ice_flow_engine may help.

It's a good suggestion. struct ice_flow_engine has engine_type already. I will 
add debug log info in v2.

> 
> >+                    return -EINVAL;
> >+
> >+            ret = engine->init(ad);
> >+            if (ret)
> >+                    return ret;
> >+    }
> >+    return 0;
> >+}
> >+
> >+void
> >+ice_flow_uninit(struct ice_adapter *ad) {
> >+    struct ice_pf *pf = &ad->pf;
> >+    struct ice_flow_engine *engine;
> >+    struct rte_flow *p_flow;
> >+    struct ice_flow_parser *p_parser;
> >+    void *temp;
> >+
> >+    TAILQ_FOREACH_SAFE(engine, &engine_list, node, temp) {
> >+            if (engine->uninit)
> >+                    engine->uninit(ad);
> >+    }
> >+
> >+    /* Remove all flows */
> >+    while ((p_flow = TAILQ_FIRST(&pf->flow_list))) {
> >+            TAILQ_REMOVE(&pf->flow_list, p_flow, node);
> >+            if (p_flow->engine->free)
> >+                    p_flow->engine->free(p_flow);
> >+            rte_free(p_flow);
> >+    }
> >+
> >+    /* Cleanup parser list */
> >+    while ((p_parser = TAILQ_FIRST(&pf->rss_parser_list)))
> >+            TAILQ_REMOVE(&pf->rss_parser_list, p_parser, node);
> >+
> >+    while ((p_parser = TAILQ_FIRST(&pf->perm_parser_list)))
> >+            TAILQ_REMOVE(&pf->perm_parser_list, p_parser, node);
> >+
> >+    while ((p_parser = TAILQ_FIRST(&pf->dist_parser_list)))
> >+            TAILQ_REMOVE(&pf->dist_parser_list, p_parser, node); }
> >+
> >+int
> >+ice_register_parser(struct ice_flow_parser *parser,
> >+            struct ice_adapter *ad)
> >+{
> >+    struct ice_parser_list *list = NULL;
> >+    struct ice_pf *pf = &ad->pf;
> >+
> >+    switch (parser->stage) {
> >+    case ICE_FLOW_STAGE_RSS:
> >+            list = &pf->rss_parser_list;
> >+            break;
> >+    case ICE_FLOW_STAGE_PERMISSION:
> >+            list = &pf->perm_parser_list;
> >+            break;
> >+    case ICE_FLOW_STAGE_DISTRIBUTOR:
> >+            list = &pf->dist_parser_list;
> >+            break;
> >+    default:
> >+            return -EINVAL;
> >+    }
> >+
> >+    if (ad->devargs.pipeline_mode_support)
> >+            TAILQ_INSERT_TAIL(list, parser, node);
> >+    else {
> >+            if (parser->engine->type == ICE_FLOW_ENGINE_SWITCH
> >+                    || parser->engine->type == ICE_FLOW_ENGINE_HASH)
> >+                    TAILQ_INSERT_TAIL(list, parser, node);
> >+            else if (parser->engine->type == ICE_FLOW_ENGINE_FDIR)
> >+                    TAILQ_INSERT_HEAD(list, parser, node);
> >+            else
> >+                    return -EINVAL;
> >+    }
> >+    return 0;
> >+}
> >+
> >+void
> >+ice_unregister_parser(struct ice_flow_parser *parser,
> >+            struct ice_adapter *ad)
> >+{
> >+    struct ice_pf *pf = &ad->pf;
> >+    struct ice_parser_list *list;
> >+    struct ice_flow_parser *p_parser;
> >+    void *temp;
> >+
> >+    switch (parser->stage) {
> >+    case ICE_FLOW_STAGE_RSS:
> >+            list = &pf->rss_parser_list;
> >+            break;
> >+    case ICE_FLOW_STAGE_PERMISSION:
> >+            list = &pf->perm_parser_list;
> >+            break;
> >+    case ICE_FLOW_STAGE_DISTRIBUTOR:
> >+            list = &pf->dist_parser_list;
> >+            break;
> >+    default:
> >+            return;
> >+    }
> >+
> >+    TAILQ_FOREACH_SAFE(p_parser, list, node, temp) {
> >+            if (p_parser->engine->type == parser->engine->type)
> >+                    TAILQ_REMOVE(list, p_parser, node);
> >+    }
> >+
> >+}
> >+
> > static int
> >-ice_flow_valid_attr(const struct rte_flow_attr *attr,
> >-                 struct rte_flow_error *error)
> >+ice_flow_valid_attr(struct ice_adapter *ad,
> >+            const struct rte_flow_attr *attr,
> >+            struct rte_flow_error *error)
> > {
> >     /* Must be input direction */
> >     if (!attr->ingress) {
> >@@ -61,15 +212,25 @@ ice_flow_valid_attr(const struct rte_flow_attr *attr,
> >                                attr, "Not support egress.");
> >             return -rte_errno;
> >     }
> >-
> >-    /* Not supported */
> >-    if (attr->priority) {
> >-            rte_flow_error_set(error, EINVAL,
> >-                               RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
> >-                               attr, "Not support priority.");
> >-            return -rte_errno;
> >+    /* Check pipeline mode support to set classification stage */
> >+    if (ad->devargs.pipeline_mode_support) {
> >+            if (0 == attr->priority)
> >+                    ice_pipeline_stage =
> >+                            ICE_FLOW_CLASSIFY_STAGE_PERMISSION;
> >+            else
> >+                    ice_pipeline_stage =
> >+                            ICE_FLOW_CLASSIFY_STAGE_DISTRIBUTOR;
> >+    } else {
> >+            ice_pipeline_stage =
> >+                    ICE_FLOW_CLASSIFY_STAGE_DISTRIBUTOR_ONLY;
> 
> Do we really this assignment?

Yes. We use devargs.pipeline_mode_support as a hint to decide which mode to 
use, 1 for pipeline mode, 0 for non-pipeline mode.
By default, non-pipeline mode is used and both switch/fdir used as distributor, 
switch is fdir's backup. 
In pipeline mode, attr->priority is enabled,  0 for permission stage and 1 for 
distributor stage.

> 
> >+            /* Not supported */
> >+            if (attr->priority) {
> >+                    rte_flow_error_set(error, EINVAL,
> >+
> RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
> >+                                       attr, "Not support priority.");
> >+                    return -rte_errno;
> >+            }
> >     }
> >-
> 
> Unrelated change.
> 
> >     /* Not supported */
> >     if (attr->group) {
> >             rte_flow_error_set(error, EINVAL,
> >@@ -102,7 +263,7 @@ ice_find_first_item(const struct rte_flow_item
> >*item, bool is_void)
> > /* Skip all VOID items of the pattern */  static void
> >ice_pattern_skip_void_item(struct rte_flow_item *items,
> >-                        const struct rte_flow_item *pattern)
> >+                    const struct rte_flow_item *pattern)
> > {
> >     uint32_t cpy_count = 0;
> >     const struct rte_flow_item *pb = pattern, *pe = pattern; @@ -124,7
> >+285,6 @@ ice_pattern_skip_void_item(struct rte_flow_item *items,
> >             items += cpy_count;
> >
> >             if (pe->type == RTE_FLOW_ITEM_TYPE_END) {
> >-                    pb = pe;
> >                     break;
> >             }
> >
> >@@ -151,11 +311,15 @@ ice_match_pattern(enum rte_flow_item_type
> *item_array,
> >             item->type == RTE_FLOW_ITEM_TYPE_END);  }
> >
> >-static uint64_t ice_flow_valid_pattern(const struct rte_flow_item
> >pattern[],
> >+struct ice_pattern_match_item *
> >+ice_search_pattern_match_item(const struct rte_flow_item pattern[],
> >+            struct ice_pattern_match_item *array,
> >+            uint32_t array_len,
> >             struct rte_flow_error *error)
> > {
> >     uint16_t i = 0;
> >-    uint64_t inset;
> >+    struct ice_pattern_match_item *pattern_match_item;
> >+    /* need free by each filter */
> >     struct rte_flow_item *items; /* used for pattern without VOID items */
> >     uint32_t item_num = 0; /* non-void item number */
> >
> >@@ -172,451 +336,149 @@ static uint64_t ice_flow_valid_pattern(const
> struct rte_flow_item pattern[],
> >     if (!items) {
> >             rte_flow_error_set(error, ENOMEM,
> RTE_FLOW_ERROR_TYPE_ITEM_NUM,
> >                                NULL, "No memory for PMD internal items.");
> >-            return -ENOMEM;
> >+            return NULL;
> >+    }
> >+    pattern_match_item = rte_zmalloc("ice_pattern_match_item",
> >+                    sizeof(struct ice_pattern_match_item), 0);
> >+    if (!pattern_match_item) {
> >+            PMD_DRV_LOG(ERR, "Failed to allocate memory.");
> 
> Use rte_flow_error_set to align with others.

OK, will fix it in v2.

> 
> >+            return NULL;
> >     }
> >-
> >     ice_pattern_skip_void_item(items, pattern);
> >
> >-    for (i = 0; i < RTE_DIM(ice_supported_patterns); i++)
> >-            if (ice_match_pattern(ice_supported_patterns[i].items,
> >+    for (i = 0; i < array_len; i++)
> >+            if (ice_match_pattern(array[i].pattern_list,
> >                                   items)) {
> >-                    inset = ice_supported_patterns[i].sw_fields;
> >+                    pattern_match_item->input_set_mask =
> >+                            array[i].input_set_mask;
> >+                    pattern_match_item->pattern_list =
> >+                            array[i].pattern_list;
> >+                    pattern_match_item->meta = array[i].meta;
> >                     rte_free(items);
> >-                    return inset;
> >+                    return pattern_match_item;
> >             }
> >     rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
> >                        pattern, "Unsupported pattern");
> >
> >     rte_free(items);
> >-    return 0;
> >-}
> >-
> >-static uint64_t ice_get_flow_field(const struct rte_flow_item pattern[],
> >-                    struct rte_flow_error *error)
> >-{
> >-    const struct rte_flow_item *item = pattern;
> >-    const struct rte_flow_item_eth *eth_spec, *eth_mask;
> >-    const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
> >-    const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
> >-    const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
> >-    const struct rte_flow_item_udp *udp_spec, *udp_mask;
> >-    const struct rte_flow_item_sctp *sctp_spec, *sctp_mask;
> >-    const struct rte_flow_item_icmp *icmp_mask;
> >-    const struct rte_flow_item_icmp6 *icmp6_mask;
> >-    const struct rte_flow_item_vxlan *vxlan_spec, *vxlan_mask;
> >-    const struct rte_flow_item_nvgre *nvgre_spec, *nvgre_mask;
> >-    enum rte_flow_item_type item_type;
> >-    uint8_t  ipv6_addr_mask[16] = {
> >-            0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
> >-            0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
> >-    uint64_t input_set = ICE_INSET_NONE;
> >-    bool is_tunnel = false;
> >-
> >-    for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
> >-            if (item->last) {
> >-                    rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                       item,
> >-                                       "Not support range");
> >-                    return 0;
> >-            }
> >-            item_type = item->type;
> >-            switch (item_type) {
> >-            case RTE_FLOW_ITEM_TYPE_ETH:
> >-                    eth_spec = item->spec;
> >-                    eth_mask = item->mask;
> >-
> >-                    if (eth_spec && eth_mask) {
> >-                            if (rte_is_broadcast_ether_addr(&eth_mask-
> >src))
> >-                                    input_set |= ICE_INSET_SMAC;
> >-                            if (rte_is_broadcast_ether_addr(&eth_mask-
> >dst))
> >-                                    input_set |= ICE_INSET_DMAC;
> >-                            if (eth_mask->type == RTE_BE16(0xffff))
> >-                                    input_set |= ICE_INSET_ETHERTYPE;
> >-                    }
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_IPV4:
> >-                    ipv4_spec = item->spec;
> >-                    ipv4_mask = item->mask;
> >-
> >-                    if (!(ipv4_spec && ipv4_mask))
> >-                            break;
> >-
> >-                    /* Check IPv4 mask and update input set */
> >-                    if (ipv4_mask->hdr.version_ihl ||
> >-                        ipv4_mask->hdr.total_length ||
> >-                        ipv4_mask->hdr.packet_id ||
> >-                        ipv4_mask->hdr.hdr_checksum) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                       item,
> >-                                       "Invalid IPv4 mask.");
> >-                            return 0;
> >-                    }
> >-
> >-                    if (is_tunnel) {
> >-                            if (ipv4_mask->hdr.src_addr == UINT32_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_IPV4_SRC;
> >-                            if (ipv4_mask->hdr.dst_addr == UINT32_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_IPV4_DST;
> >-                            if (ipv4_mask->hdr.time_to_live == UINT8_MAX)
> >-                                    input_set |= ICE_INSET_TUN_IPV4_TTL;
> >-                            if (ipv4_mask->hdr.next_proto_id ==
> UINT8_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_IPV4_PROTO;
> >-                    } else {
> >-                            if (ipv4_mask->hdr.src_addr == UINT32_MAX)
> >-                                    input_set |= ICE_INSET_IPV4_SRC;
> >-                            if (ipv4_mask->hdr.dst_addr == UINT32_MAX)
> >-                                    input_set |= ICE_INSET_IPV4_DST;
> >-                            if (ipv4_mask->hdr.time_to_live == UINT8_MAX)
> >-                                    input_set |= ICE_INSET_IPV4_TTL;
> >-                            if (ipv4_mask->hdr.next_proto_id ==
> UINT8_MAX)
> >-                                    input_set |= ICE_INSET_IPV4_PROTO;
> >-                            if (ipv4_mask->hdr.type_of_service ==
> UINT8_MAX)
> >-                                    input_set |= ICE_INSET_IPV4_TOS;
> >-                    }
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_IPV6:
> >-                    ipv6_spec = item->spec;
> >-                    ipv6_mask = item->mask;
> >-
> >-                    if (!(ipv6_spec && ipv6_mask))
> >-                            break;
> >-
> >-                    if (ipv6_mask->hdr.payload_len) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                       item,
> >-                                       "Invalid IPv6 mask");
> >-                            return 0;
> >-                    }
> >-
> >-                    if (is_tunnel) {
> >-                            if (!memcmp(ipv6_mask->hdr.src_addr,
> >-                                        ipv6_addr_mask,
> >-                                        RTE_DIM(ipv6_mask->hdr.src_addr)))
> >-                                    input_set |=
> ICE_INSET_TUN_IPV6_SRC;
> >-                            if (!memcmp(ipv6_mask->hdr.dst_addr,
> >-                                        ipv6_addr_mask,
> >-                                        RTE_DIM(ipv6_mask->hdr.dst_addr)))
> >-                                    input_set |=
> ICE_INSET_TUN_IPV6_DST;
> >-                            if (ipv6_mask->hdr.proto == UINT8_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_IPV6_PROTO;
> >-                            if (ipv6_mask->hdr.hop_limits == UINT8_MAX)
> >-                                    input_set |= ICE_INSET_TUN_IPV6_TTL;
> >-                    } else {
> >-                            if (!memcmp(ipv6_mask->hdr.src_addr,
> >-                                        ipv6_addr_mask,
> >-                                        RTE_DIM(ipv6_mask->hdr.src_addr)))
> >-                                    input_set |= ICE_INSET_IPV6_SRC;
> >-                            if (!memcmp(ipv6_mask->hdr.dst_addr,
> >-                                        ipv6_addr_mask,
> >-                                        RTE_DIM(ipv6_mask->hdr.dst_addr)))
> >-                                    input_set |= ICE_INSET_IPV6_DST;
> >-                            if (ipv6_mask->hdr.proto == UINT8_MAX)
> >-                                    input_set |= ICE_INSET_IPV6_PROTO;
> >-                            if (ipv6_mask->hdr.hop_limits == UINT8_MAX)
> >-                                    input_set |=
> ICE_INSET_IPV6_HOP_LIMIT;
> >-                            if ((ipv6_mask->hdr.vtc_flow &
> >-
>       rte_cpu_to_be_32(RTE_IPV6_HDR_TC_MASK))
> >-                                            == rte_cpu_to_be_32
> >-                                            (RTE_IPV6_HDR_TC_MASK))
> >-                                    input_set |= ICE_INSET_IPV6_TOS;
> >-                    }
> >-
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_UDP:
> >-                    udp_spec = item->spec;
> >-                    udp_mask = item->mask;
> >-
> >-                    if (!(udp_spec && udp_mask))
> >-                            break;
> >-
> >-                    /* Check UDP mask and update input set*/
> >-                    if (udp_mask->hdr.dgram_len ||
> >-                        udp_mask->hdr.dgram_cksum) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-
> RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                               item,
> >-                                               "Invalid UDP mask");
> >-                            return 0;
> >-                    }
> >-
> >-                    if (is_tunnel) {
> >-                            if (udp_mask->hdr.src_port == UINT16_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_SRC_PORT;
> >-                            if (udp_mask->hdr.dst_port == UINT16_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_DST_PORT;
> >-                    } else {
> >-                            if (udp_mask->hdr.src_port == UINT16_MAX)
> >-                                    input_set |= ICE_INSET_SRC_PORT;
> >-                            if (udp_mask->hdr.dst_port == UINT16_MAX)
> >-                                    input_set |= ICE_INSET_DST_PORT;
> >-                    }
> >-
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_TCP:
> >-                    tcp_spec = item->spec;
> >-                    tcp_mask = item->mask;
> >-
> >-                    if (!(tcp_spec && tcp_mask))
> >-                            break;
> >-
> >-                    /* Check TCP mask and update input set */
> >-                    if (tcp_mask->hdr.sent_seq ||
> >-                        tcp_mask->hdr.recv_ack ||
> >-                        tcp_mask->hdr.data_off ||
> >-                        tcp_mask->hdr.tcp_flags ||
> >-                        tcp_mask->hdr.rx_win ||
> >-                        tcp_mask->hdr.cksum ||
> >-                        tcp_mask->hdr.tcp_urp) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-
> RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                               item,
> >-                                               "Invalid TCP mask");
> >-                            return 0;
> >-                    }
> >-
> >-                    if (is_tunnel) {
> >-                            if (tcp_mask->hdr.src_port == UINT16_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_SRC_PORT;
> >-                            if (tcp_mask->hdr.dst_port == UINT16_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_DST_PORT;
> >-                    } else {
> >-                            if (tcp_mask->hdr.src_port == UINT16_MAX)
> >-                                    input_set |= ICE_INSET_SRC_PORT;
> >-                            if (tcp_mask->hdr.dst_port == UINT16_MAX)
> >-                                    input_set |= ICE_INSET_DST_PORT;
> >-                    }
> >-
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_SCTP:
> >-                    sctp_spec = item->spec;
> >-                    sctp_mask = item->mask;
> >-
> >-                    if (!(sctp_spec && sctp_mask))
> >-                            break;
> >-
> >-                    /* Check SCTP mask and update input set */
> >-                    if (sctp_mask->hdr.cksum) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                       item,
> >-                                       "Invalid SCTP mask");
> >-                            return 0;
> >-                    }
> >-
> >-                    if (is_tunnel) {
> >-                            if (sctp_mask->hdr.src_port == UINT16_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_SRC_PORT;
> >-                            if (sctp_mask->hdr.dst_port == UINT16_MAX)
> >-                                    input_set |=
> ICE_INSET_TUN_DST_PORT;
> >-                    } else {
> >-                            if (sctp_mask->hdr.src_port == UINT16_MAX)
> >-                                    input_set |= ICE_INSET_SRC_PORT;
> >-                            if (sctp_mask->hdr.dst_port == UINT16_MAX)
> >-                                    input_set |= ICE_INSET_DST_PORT;
> >-                    }
> >-
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_ICMP:
> >-                    icmp_mask = item->mask;
> >-                    if (icmp_mask->hdr.icmp_code ||
> >-                        icmp_mask->hdr.icmp_cksum ||
> >-                        icmp_mask->hdr.icmp_ident ||
> >-                        icmp_mask->hdr.icmp_seq_nb) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-
> RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                               item,
> >-                                               "Invalid ICMP mask");
> >-                            return 0;
> >-                    }
> >-
> >-                    if (icmp_mask->hdr.icmp_type == UINT8_MAX)
> >-                            input_set |= ICE_INSET_ICMP;
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_ICMP6:
> >-                    icmp6_mask = item->mask;
> >-                    if (icmp6_mask->code ||
> >-                        icmp6_mask->checksum) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-
> RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                               item,
> >-                                               "Invalid ICMP6 mask");
> >-                            return 0;
> >-                    }
> >-
> >-                    if (icmp6_mask->type == UINT8_MAX)
> >-                            input_set |= ICE_INSET_ICMP6;
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_VXLAN:
> >-                    vxlan_spec = item->spec;
> >-                    vxlan_mask = item->mask;
> >-                    /* Check if VXLAN item is used to describe protocol.
> >-                     * If yes, both spec and mask should be NULL.
> >-                     * If no, both spec and mask shouldn't be NULL.
> >-                     */
> >-                    if ((!vxlan_spec && vxlan_mask) ||
> >-                        (vxlan_spec && !vxlan_mask)) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                       item,
> >-                                       "Invalid VXLAN item");
> >-                            return 0;
> >-                    }
> >-                    if (vxlan_mask && vxlan_mask->vni[0] == UINT8_MAX
> &&
> >-                                    vxlan_mask->vni[1] == UINT8_MAX &&
> >-                                    vxlan_mask->vni[2] == UINT8_MAX)
> >-                            input_set |= ICE_INSET_TUN_ID;
> >-                    is_tunnel = 1;
> >-
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_NVGRE:
> >-                    nvgre_spec = item->spec;
> >-                    nvgre_mask = item->mask;
> >-                    /* Check if NVGRE item is used to describe protocol.
> >-                     * If yes, both spec and mask should be NULL.
> >-                     * If no, both spec and mask shouldn't be NULL.
> >-                     */
> >-                    if ((!nvgre_spec && nvgre_mask) ||
> >-                        (nvgre_spec && !nvgre_mask)) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                       item,
> >-                                       "Invalid NVGRE item");
> >-                            return 0;
> >-                    }
> >-                    if (nvgre_mask && nvgre_mask->tni[0] == UINT8_MAX
> &&
> >-                                    nvgre_mask->tni[1] == UINT8_MAX &&
> >-                                    nvgre_mask->tni[2] == UINT8_MAX)
> >-                            input_set |= ICE_INSET_TUN_ID;
> >-                    is_tunnel = 1;
> >-
> >-                    break;
> >-            case RTE_FLOW_ITEM_TYPE_VOID:
> >-                    break;
> >-            default:
> >-                    rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ITEM,
> >-                                       item,
> >-                                       "Invalid pattern");
> >-                    break;
> >-            }
> >-    }
> >-    return input_set;
> >-}
> >-
> >-static int ice_flow_valid_inset(const struct rte_flow_item pattern[],
> >-                    uint64_t inset, struct rte_flow_error *error)
> >-{
> >-    uint64_t fields;
> >-
> >-    /* get valid field */
> >-    fields = ice_get_flow_field(pattern, error);
> >-    if (!fields || fields & (~inset)) {
> >-            rte_flow_error_set(error, EINVAL,
> >-                               RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
> >-                               pattern,
> >-                               "Invalid input set");
> >-            return -rte_errno;
> >-    }
> >-
> >-    return 0;
> >+    rte_free(pattern_match_item);
> >+    return NULL;
> > }
> >
> >-static int ice_flow_valid_action(struct rte_eth_dev *dev,
> >-                            const struct rte_flow_action *actions,
> >-                            struct rte_flow_error *error)
> >+static struct ice_flow_engine *
> >+ice_parse_engine(struct ice_adapter *ad,
> >+            struct ice_parser_list *parser_list,
> >+            const struct rte_flow_item pattern[],
> >+            const struct rte_flow_action actions[],
> >+            void **meta,
> >+            struct rte_flow_error *error)
> > {
> >-    const struct rte_flow_action_queue *act_q;
> >-    uint16_t queue;
> >-    const struct rte_flow_action *action;
> >-    for (action = actions; action->type !=
> >-                    RTE_FLOW_ACTION_TYPE_END; action++) {
> >-            switch (action->type) {
> >-            case RTE_FLOW_ACTION_TYPE_QUEUE:
> >-                    act_q = action->conf;
> >-                    queue = act_q->index;
> >-                    if (queue >= dev->data->nb_rx_queues) {
> >-                            rte_flow_error_set(error, EINVAL,
> >-
>       RTE_FLOW_ERROR_TYPE_ACTION,
> >-                                            actions, "Invalid queue ID for"
> >-                                            " switch filter.");
> >-                            return -rte_errno;
> >-                    }
> >-                    break;
> >-            case RTE_FLOW_ACTION_TYPE_DROP:
> >-            case RTE_FLOW_ACTION_TYPE_VOID:
> >-                    break;
> >-            default:
> >-                    rte_flow_error_set(error, EINVAL,
> >-                                       RTE_FLOW_ERROR_TYPE_ACTION,
> actions,
> >-                                       "Invalid action.");
> >-                    return -rte_errno;
> >-            }
> >+    struct ice_flow_engine *engine = NULL;
> >+    struct ice_flow_parser *parser = NULL;
> >+    void *temp;
> >+    TAILQ_FOREACH_SAFE(parser, parser_list, node, temp) {
> >+            if (parser->parse_pattern_action(ad, parser->array,
> >+                            parser->array_len, pattern, actions,
> >+                            meta, error) < 0)
> >+                    continue;
> >+            engine = parser->engine;
> >+            break;
> >     }
> >-    return 0;
> >+    return engine;
> > }
> >
> > static int
> >-ice_flow_validate(struct rte_eth_dev *dev,
> >-               const struct rte_flow_attr *attr,
> >-               const struct rte_flow_item pattern[],
> >-               const struct rte_flow_action actions[],
> >-               struct rte_flow_error *error)
> >+ice_flow_validate_filter(struct rte_eth_dev *dev,
> >+            const struct rte_flow_attr *attr,
> >+            const struct rte_flow_item pattern[],
> >+            const struct rte_flow_action actions[],
> >+            struct ice_flow_engine **engine,
> >+            void **meta,
> >+            struct rte_flow_error *error)
> > {
> >-    uint64_t inset = 0;
> >     int ret = ICE_ERR_NOT_SUPPORTED;
> >+    struct ice_adapter *ad =
> >+            ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
> >+    struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> >
> >     if (!pattern) {
> >             rte_flow_error_set(error, EINVAL,
> RTE_FLOW_ERROR_TYPE_ITEM_NUM,
> >-                               NULL, "NULL pattern.");
> >+                            NULL, "NULL pattern.");
> >             return -rte_errno;
> >     }
> >
> >     if (!actions) {
> >             rte_flow_error_set(error, EINVAL,
> >-                               RTE_FLOW_ERROR_TYPE_ACTION_NUM,
> >-                               NULL, "NULL action.");
> >+                            RTE_FLOW_ERROR_TYPE_ACTION_NUM,
> >+                            NULL, "NULL action.");
> >             return -rte_errno;
> >     }
> >-
> >     if (!attr) {
> >             rte_flow_error_set(error, EINVAL,
> >-                               RTE_FLOW_ERROR_TYPE_ATTR,
> >-                               NULL, "NULL attribute.");
> >+                            RTE_FLOW_ERROR_TYPE_ATTR,
> >+                            NULL, "NULL attribute.");
> >             return -rte_errno;
> >     }
> >
> >-    ret = ice_flow_valid_attr(attr, error);
> >+    ret = ice_flow_valid_attr(ad, attr, error);
> >     if (ret)
> >             return ret;
> >
> >-    inset = ice_flow_valid_pattern(pattern, error);
> >-    if (!inset)
> >-            return -rte_errno;
> >-
> >-    ret = ice_flow_valid_inset(pattern, inset, error);
> >-    if (ret)
> >-            return ret;
> >+    *engine = ice_parse_engine(ad, &pf->rss_parser_list, pattern, actions,
> >+                    meta, error);
> >+    if (*engine != NULL)
> >+            return 0;
> >+
> >+    switch (ice_pipeline_stage) {
> >+    case ICE_FLOW_CLASSIFY_STAGE_DISTRIBUTOR_ONLY:
> >+    case ICE_FLOW_CLASSIFY_STAGE_DISTRIBUTOR:
> >+            *engine = ice_parse_engine(ad, &pf->dist_parser_list, pattern,
> >+                            actions, meta, error);
> >+            break;
> >+    case ICE_FLOW_CLASSIFY_STAGE_PERMISSION:
> >+            *engine = ice_parse_engine(ad, &pf->perm_parser_list, pattern,
> >+                            actions, meta, error);
> >+            break;
> >+    default:
> >+            return -EINVAL;
> >+    }
> >
> >-    ret = ice_flow_valid_action(dev, actions, error);
> >-    if (ret)
> >-            return ret;
> >+    if (*engine == NULL)
> >+            return -EINVAL;
> >
> >     return 0;
> > }
> >
> >+static int
> >+ice_flow_validate(struct rte_eth_dev *dev,
> >+            const struct rte_flow_attr *attr,
> >+            const struct rte_flow_item pattern[],
> >+            const struct rte_flow_action actions[],
> >+            struct rte_flow_error *error)
> >+{
> >+    int ret = ICE_ERR_NOT_SUPPORTED;
> >+    void *meta = NULL;
> >+    struct ice_flow_engine *engine = NULL;
> >+
> >+    ret = ice_flow_validate_filter(dev, attr, pattern, actions,
> >+                    &engine, &meta, error);
> >+    return ret;
> >+}
> >+
> > static struct rte_flow *
> > ice_flow_create(struct rte_eth_dev *dev,
> >-             const struct rte_flow_attr *attr,
> >-             const struct rte_flow_item pattern[],
> >-             const struct rte_flow_action actions[],
> >-             struct rte_flow_error *error)
> >+            const struct rte_flow_attr *attr,
> >+            const struct rte_flow_item pattern[],
> >+            const struct rte_flow_action actions[],
> >+            struct rte_flow_error *error)
> > {
> >     struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> >     struct rte_flow *flow = NULL;
> >-    int ret;
> >+    int ret = 0;
> >+    struct ice_adapter *ad =
> >+            ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
> >+    struct ice_flow_engine *engine = NULL;
> >+    void *meta = NULL;
> >
> >     flow = rte_zmalloc("ice_flow", sizeof(struct rte_flow), 0);
> >     if (!flow) {
> >@@ -626,65 +488,105 @@ ice_flow_create(struct rte_eth_dev *dev,
> >             return flow;
> >     }
> >
> >-    ret = ice_flow_validate(dev, attr, pattern, actions, error);
> >+    ret = ice_flow_validate_filter(dev, attr, pattern, actions,
> >+                    &engine, &meta, error);
> >     if (ret < 0)
> >             goto free_flow;
> >
> >-    ret = ice_create_switch_filter(pf, pattern, actions, flow, error);
> >+    if (engine->create == NULL)
> >+            goto free_flow;
> >+
> >+    ret = engine->create(ad, flow, meta, error);
> >     if (ret)
> >             goto free_flow;
> >
> >+    flow->engine = engine;
> >     TAILQ_INSERT_TAIL(&pf->flow_list, flow, node);
> >     return flow;
> >
> > free_flow:
> >-    rte_flow_error_set(error, -ret,
> >-                       RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
> >-                       "Failed to create flow.");
> >+    PMD_DRV_LOG(ERR, "Failed to create flow");
> 
> Why is this change?

For framework has passed the "error" to each filter, rte_flow_error_set() will 
be used within each filter (switch/fdir/rss).
If used rte_flow_error_set() here, it will cover the error set value by each 
filter, so PMD_DRV_LOG is used here.

> 
> >     rte_free(flow);
> >     return NULL;
> > }
> >
> > static int
> > ice_flow_destroy(struct rte_eth_dev *dev,
> >-             struct rte_flow *flow,
> >-             struct rte_flow_error *error)
> >+            struct rte_flow *flow,
> >+            struct rte_flow_error *error)
> > {
> >     struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> >+    struct ice_adapter *ad =
> >+            ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
> >     int ret = 0;
> >
> >-    ret = ice_destroy_switch_filter(pf, flow, error);
> >-
> >+    if (!flow || !flow->engine->destroy) {
> >+            rte_flow_error_set(error, EINVAL,
> >+                            RTE_FLOW_ERROR_TYPE_HANDLE,
> >+                            NULL, "NULL flow or NULL destroy");
> >+            return -rte_errno;
> >+    }
> >+    ret = flow->engine->destroy(ad, flow, error);
> >     if (!ret) {
> >             TAILQ_REMOVE(&pf->flow_list, flow, node);
> >             rte_free(flow);
> >-    } else {
> >-            rte_flow_error_set(error, -ret,
> >-                               RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
> >-                               "Failed to destroy flow.");
> >-    }
> >+    } else
> >+            PMD_DRV_LOG(ERR, "Failed to destroy flow");
> 
> Ditto.

Ditto.

> 
> >
> >     return ret;
> > }
> >
> > static int
> > ice_flow_flush(struct rte_eth_dev *dev,
> >-           struct rte_flow_error *error)
> >+            struct rte_flow_error *error)
> > {
> >     struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> >-    struct rte_flow *p_flow;
> >+    struct rte_flow *p_flow = NULL;
> >     void *temp;
> >     int ret = 0;
> >
> >     TAILQ_FOREACH_SAFE(p_flow, &pf->flow_list, node, temp) {
> >             ret = ice_flow_destroy(dev, p_flow, error);
> >             if (ret) {
> >-                    rte_flow_error_set(error, -ret,
> >-                                       RTE_FLOW_ERROR_TYPE_HANDLE,
> NULL,
> >-                                       "Failed to flush SW flows.");
> >-                    return -rte_errno;
> >+                    PMD_DRV_LOG(ERR, "Failed to flush flows");
> 
> Ditto.

Ditto.

> 
> 
> Thanks,
> Xiaolong

Thanks
Ying

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