net/octeontx2: support VLAN insert and strip actions
authorKiran Kumar K <kirankumark@marvell.com>
Mon, 24 Aug 2020 07:04:24 +0000 (12:34 +0530)
committerFerruh Yigit <ferruh.yigit@intel.com>
Wed, 30 Sep 2020 17:19:11 +0000 (19:19 +0200)
Adding support for RTE Flow VLAN insert and strip actions.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
doc/guides/nics/octeontx2.rst
drivers/net/octeontx2/otx2_flow.c
drivers/net/octeontx2/otx2_flow.h
drivers/net/octeontx2/otx2_flow_parse.c
drivers/net/octeontx2/otx2_flow_utils.c

index bb591a8..f3be79b 100644 (file)
@@ -385,38 +385,46 @@ Actions:
 
 .. table:: Ingress action types
 
-   +----+--------------------------------+
-   | #  | Action Type                    |
-   +====+================================+
-   | 1  | RTE_FLOW_ACTION_TYPE_VOID      |
-   +----+--------------------------------+
-   | 2  | RTE_FLOW_ACTION_TYPE_MARK      |
-   +----+--------------------------------+
-   | 3  | RTE_FLOW_ACTION_TYPE_FLAG      |
-   +----+--------------------------------+
-   | 4  | RTE_FLOW_ACTION_TYPE_COUNT     |
-   +----+--------------------------------+
-   | 5  | RTE_FLOW_ACTION_TYPE_DROP      |
-   +----+--------------------------------+
-   | 6  | RTE_FLOW_ACTION_TYPE_QUEUE     |
-   +----+--------------------------------+
-   | 7  | RTE_FLOW_ACTION_TYPE_RSS       |
-   +----+--------------------------------+
-   | 8  | RTE_FLOW_ACTION_TYPE_SECURITY  |
-   +----+--------------------------------+
-   | 9  | RTE_FLOW_ACTION_TYPE_PF        |
-   +----+--------------------------------+
-   | 10 | RTE_FLOW_ACTION_TYPE_VF        |
-   +----+--------------------------------+
+   +----+-----------------------------------------+
+   | #  | Action Type                             |
+   +====+=========================================+
+   | 1  | RTE_FLOW_ACTION_TYPE_VOID               |
+   +----+-----------------------------------------+
+   | 2  | RTE_FLOW_ACTION_TYPE_MARK               |
+   +----+-----------------------------------------+
+   | 3  | RTE_FLOW_ACTION_TYPE_FLAG               |
+   +----+-----------------------------------------+
+   | 4  | RTE_FLOW_ACTION_TYPE_COUNT              |
+   +----+-----------------------------------------+
+   | 5  | RTE_FLOW_ACTION_TYPE_DROP               |
+   +----+-----------------------------------------+
+   | 6  | RTE_FLOW_ACTION_TYPE_QUEUE              |
+   +----+-----------------------------------------+
+   | 7  | RTE_FLOW_ACTION_TYPE_RSS                |
+   +----+-----------------------------------------+
+   | 8  | RTE_FLOW_ACTION_TYPE_SECURITY           |
+   +----+-----------------------------------------+
+   | 9  | RTE_FLOW_ACTION_TYPE_PF                 |
+   +----+-----------------------------------------+
+   | 10 | RTE_FLOW_ACTION_TYPE_VF                 |
+   +----+-----------------------------------------+
+   | 11 | RTE_FLOW_ACTION_TYPE_OF_POP_VLAN        |
+   +----+-----------------------------------------+
 
 .. _table_octeontx2_supported_egress_action_types:
 
 .. table:: Egress action types
 
-   +----+--------------------------------+
-   | #  | Action Type                    |
-   +====+================================+
-   | 1  | RTE_FLOW_ACTION_TYPE_COUNT     |
-   +----+--------------------------------+
-   | 2  | RTE_FLOW_ACTION_TYPE_DROP      |
-   +----+--------------------------------+
+   +----+-----------------------------------------+
+   | #  | Action Type                             |
+   +====+=========================================+
+   | 1  | RTE_FLOW_ACTION_TYPE_COUNT              |
+   +----+-----------------------------------------+
+   | 2  | RTE_FLOW_ACTION_TYPE_DROP               |
+   +----+-----------------------------------------+
+   | 3  | RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN       |
+   +----+-----------------------------------------+
+   | 4  | RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID    |
+   +----+-----------------------------------------+
+   | 5  | RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP    |
+   +----+-----------------------------------------+
index 13a76e4..9b32b2a 100644 (file)
@@ -6,6 +6,8 @@
 #include "otx2_ethdev_sec.h"
 #include "otx2_flow.h"
 
+enum flow_vtag_cfg_dir { VTAG_TX, VTAG_RX };
+
 int
 otx2_flow_free_all_resources(struct otx2_eth_dev *hw)
 {
@@ -460,6 +462,109 @@ otx2_flow_validate(struct rte_eth_dev *dev,
                               &parse_state);
 }
 
+static int
+flow_program_vtag_action(struct rte_eth_dev *eth_dev,
+                        const struct rte_flow_action actions[],
+                        struct rte_flow *flow)
+{
+       uint16_t vlan_id = 0, vlan_ethtype = RTE_ETHER_TYPE_VLAN;
+       struct otx2_eth_dev *dev = eth_dev->data->dev_private;
+       union {
+               uint64_t reg;
+               struct nix_tx_vtag_action_s act;
+       } tx_vtag_action;
+       struct otx2_mbox *mbox = dev->mbox;
+       struct nix_vtag_config *vtag_cfg;
+       struct nix_vtag_config_rsp *rsp;
+       bool vlan_insert_action = false;
+       uint64_t rx_vtag_action = 0;
+       uint8_t vlan_pcp = 0;
+       int rc;
+
+       for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
+               if (actions->type == RTE_FLOW_ACTION_TYPE_OF_POP_VLAN) {
+                       if (dev->npc_flow.vtag_actions == 1) {
+                               vtag_cfg =
+                                       otx2_mbox_alloc_msg_nix_vtag_cfg(mbox);
+                               vtag_cfg->cfg_type = VTAG_RX;
+                               vtag_cfg->rx.strip_vtag = 1;
+                               /* Always capture */
+                               vtag_cfg->rx.capture_vtag = 1;
+                               vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
+                               vtag_cfg->rx.vtag_type = 0;
+
+                               rc = otx2_mbox_process(mbox);
+                               if (rc)
+                                       return rc;
+                       }
+
+                       rx_vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 15);
+                       rx_vtag_action |= (NPC_LID_LB << 8);
+                       rx_vtag_action |= NIX_RX_VTAGACTION_VTAG0_RELPTR;
+                       flow->vtag_action = rx_vtag_action;
+               } else if (actions->type ==
+                          RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID) {
+                       const struct rte_flow_action_of_set_vlan_vid *vtag =
+                               (const struct rte_flow_action_of_set_vlan_vid *)
+                                       actions->conf;
+                       vlan_id = rte_be_to_cpu_16(vtag->vlan_vid);
+                       if (vlan_id > 0xfff) {
+                               otx2_err("Invalid vlan_id for set vlan action");
+                               return -EINVAL;
+                       }
+                       vlan_insert_action = true;
+               } else if (actions->type == RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN) {
+                       const struct rte_flow_action_of_push_vlan *ethtype =
+                               (const struct rte_flow_action_of_push_vlan *)
+                                       actions->conf;
+                       vlan_ethtype = rte_be_to_cpu_16(ethtype->ethertype);
+                       if (vlan_ethtype != RTE_ETHER_TYPE_VLAN &&
+                           vlan_ethtype != RTE_ETHER_TYPE_QINQ) {
+                               otx2_err("Invalid ethtype specified for push"
+                                        " vlan action");
+                               return -EINVAL;
+                       }
+                       vlan_insert_action = true;
+               } else if (actions->type ==
+                          RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP) {
+                       const struct rte_flow_action_of_set_vlan_pcp *pcp =
+                               (const struct rte_flow_action_of_set_vlan_pcp *)
+                                       actions->conf;
+                       vlan_pcp = pcp->vlan_pcp;
+                       if (vlan_pcp > 0x7) {
+                               otx2_err("Invalid PCP value for pcp action");
+                               return -EINVAL;
+                       }
+                       vlan_insert_action = true;
+               }
+       }
+
+       if (vlan_insert_action) {
+               vtag_cfg = otx2_mbox_alloc_msg_nix_vtag_cfg(mbox);
+               vtag_cfg->cfg_type = VTAG_TX;
+               vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
+               vtag_cfg->tx.vtag0 =
+                       ((vlan_ethtype << 16) | (vlan_pcp << 13) | vlan_id);
+               vtag_cfg->tx.cfg_vtag0 = 1;
+               rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+               if (rc)
+                       return rc;
+
+               tx_vtag_action.reg = 0;
+               tx_vtag_action.act.vtag0_def = rsp->vtag0_idx;
+               if (tx_vtag_action.act.vtag0_def < 0) {
+                       otx2_err("Failed to config TX VTAG action");
+                       return -EINVAL;
+               }
+               tx_vtag_action.act.vtag0_lid = NPC_LID_LA;
+               tx_vtag_action.act.vtag0_op = NIX_TX_VTAGOP_INSERT;
+               tx_vtag_action.act.vtag0_relptr =
+                       NIX_TX_VTAGACTION_VTAG0_RELPTR;
+               flow->vtag_action = tx_vtag_action.reg;
+       }
+       return 0;
+}
+
 static struct rte_flow *
 otx2_flow_create(struct rte_eth_dev *dev,
                 const struct rte_flow_attr *attr,
@@ -489,6 +594,15 @@ otx2_flow_create(struct rte_eth_dev *dev,
        if (rc != 0)
                goto err_exit;
 
+       rc = flow_program_vtag_action(dev, actions, flow);
+       if (rc != 0) {
+               rte_flow_error_set(error, EIO,
+                                  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+                                  NULL,
+                                  "Failed to program vlan action");
+               goto err_exit;
+       }
+
        rc = flow_program_npc(&parse_state, mbox, &hw->npc_flow);
        if (rc != 0) {
                rte_flow_error_set(error, EIO,
@@ -561,6 +675,17 @@ otx2_flow_destroy(struct rte_eth_dev *dev,
                }
        }
 
+       if (flow->nix_intf == OTX2_INTF_RX && flow->vtag_action) {
+               npc->vtag_actions--;
+               if (npc->vtag_actions == 0) {
+                       if (hw->vlan_info.strip_on == 0) {
+                               hw->rx_offload_flags &=
+                                       ~NIX_RX_OFFLOAD_VLAN_STRIP_F;
+                               otx2_eth_set_rx_function(dev);
+                       }
+               }
+       }
+
        rc = flow_free_rss_action(dev, flow);
        if (rc != 0) {
                rte_flow_error_set(error, EIO,
@@ -849,6 +974,7 @@ otx2_flow_init(struct otx2_eth_dev *hw)
        }
 
        rte_atomic32_init(&npc->mark_actions);
+       npc->vtag_actions = 0;
 
        npc->mcam_entries = NPC_MCAM_TOT_ENTRIES >> npc->keyw[NPC_MCAM_RX];
        /* Free, free_rev, live and live_rev entries */
index df78f41..1f118c4 100644 (file)
@@ -55,6 +55,10 @@ enum {
 #define OTX2_FLOW_ACT_COUNT   (1 << 7)
 #define OTX2_FLOW_ACT_PF      (1 << 8)
 #define OTX2_FLOW_ACT_VF      (1 << 9)
+#define OTX2_FLOW_ACT_VLAN_STRIP (1 << 10)
+#define OTX2_FLOW_ACT_VLAN_INSERT (1 << 11)
+#define OTX2_FLOW_ACT_VLAN_ETHTYPE_INSERT (1 << 12)
+#define OTX2_FLOW_ACT_VLAN_PCP_INSERT (1 << 13)
 
 /* terminating actions */
 #define OTX2_FLOW_ACT_TERM    (OTX2_FLOW_ACT_DROP  | \
@@ -154,6 +158,7 @@ struct rte_flow {
        uint64_t mcam_data[OTX2_MAX_MCAM_WIDTH_DWORDS];
        uint64_t mcam_mask[OTX2_MAX_MCAM_WIDTH_DWORDS];
        uint64_t npc_action;
+       uint64_t vtag_action;
        TAILQ_ENTRY(rte_flow) next;
 };
 
@@ -162,6 +167,7 @@ TAILQ_HEAD(otx2_flow_list, rte_flow);
 /* Accessed from ethdev private - otx2_eth_dev */
 struct otx2_npc_flow_info {
        rte_atomic32_t mark_actions;
+       uint32_t vtag_actions;
        uint32_t keyx_supp_nmask[NPC_MAX_INTF];/* nibble mask */
        uint32_t keyx_len[NPC_MAX_INTF];        /* per intf key len in bits */
        uint32_t datax_len[NPC_MAX_INTF];       /* per intf data len in bits */
index 2d9a585..b7ff5fd 100644 (file)
@@ -813,6 +813,7 @@ otx2_flow_parse_actions(struct rte_eth_dev *dev,
        const struct rte_flow_action_mark *act_mark;
        const struct rte_flow_action_queue *act_q;
        const struct rte_flow_action_vf *vf_act;
+       bool vlan_insert_action = false;
        const char *errmsg = NULL;
        int sel_act, req_act = 0;
        uint16_t pf_func, vf_id;
@@ -932,6 +933,18 @@ otx2_flow_parse_actions(struct rte_eth_dev *dev,
                        req_act |= OTX2_FLOW_ACT_SEC;
                        rq = 0;
                        break;
+               case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
+                       req_act |= OTX2_FLOW_ACT_VLAN_INSERT;
+                       break;
+               case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
+                       req_act |= OTX2_FLOW_ACT_VLAN_STRIP;
+                       break;
+               case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
+                       req_act |= OTX2_FLOW_ACT_VLAN_ETHTYPE_INSERT;
+                       break;
+               case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
+                       req_act |= OTX2_FLOW_ACT_VLAN_PCP_INSERT;
+                       break;
                default:
                        errmsg = "Unsupported action specified";
                        errcode = ENOTSUP;
@@ -939,20 +952,46 @@ otx2_flow_parse_actions(struct rte_eth_dev *dev,
                }
        }
 
+       if (req_act &
+           (OTX2_FLOW_ACT_VLAN_INSERT | OTX2_FLOW_ACT_VLAN_ETHTYPE_INSERT |
+            OTX2_FLOW_ACT_VLAN_PCP_INSERT))
+               vlan_insert_action = true;
+
+       if ((req_act &
+            (OTX2_FLOW_ACT_VLAN_INSERT | OTX2_FLOW_ACT_VLAN_ETHTYPE_INSERT |
+             OTX2_FLOW_ACT_VLAN_PCP_INSERT)) ==
+           OTX2_FLOW_ACT_VLAN_PCP_INSERT) {
+               errmsg = " PCP insert action can't be supported alone";
+               errcode = ENOTSUP;
+               goto err_exit;
+       }
+
+       /* Both STRIP and INSERT actions are not supported */
+       if (vlan_insert_action && (req_act & OTX2_FLOW_ACT_VLAN_STRIP)) {
+               errmsg = "Both VLAN insert and strip actions not supported"
+                       " together";
+               errcode = ENOTSUP;
+               goto err_exit;
+       }
+
        /* Check if actions specified are compatible */
        if (attr->egress) {
-               /* Only DROP/COUNT is supported */
-               if (!(req_act & OTX2_FLOW_ACT_DROP)) {
-                       errmsg = "DROP is required action for egress";
-                       errcode = EINVAL;
-                       goto err_exit;
-               } else if (req_act & ~(OTX2_FLOW_ACT_DROP |
-                                      OTX2_FLOW_ACT_COUNT)) {
-                       errmsg = "Unsupported action specified";
+               if (req_act & OTX2_FLOW_ACT_VLAN_STRIP) {
+                       errmsg = "VLAN pop action is not supported on Egress";
                        errcode = ENOTSUP;
                        goto err_exit;
                }
-               flow->npc_action = NIX_TX_ACTIONOP_DROP;
+
+               if (req_act & OTX2_FLOW_ACT_DROP) {
+                       flow->npc_action = NIX_TX_ACTIONOP_DROP;
+               } else if ((req_act & OTX2_FLOW_ACT_COUNT) ||
+                          vlan_insert_action) {
+                       flow->npc_action = NIX_TX_ACTIONOP_UCAST_DEFAULT;
+               } else {
+                       errmsg = "Unsupported action for egress";
+                       errcode = EINVAL;
+                       goto err_exit;
+               }
                goto set_pf_func;
        }
 
@@ -985,8 +1024,20 @@ otx2_flow_parse_actions(struct rte_eth_dev *dev,
                goto err_exit;
        }
 
+       if (vlan_insert_action) {
+               errmsg = "VLAN push/Insert action is not supported on Ingress";
+               errcode = ENOTSUP;
+               goto err_exit;
+       }
+
+       if (req_act & OTX2_FLOW_ACT_VLAN_STRIP)
+               npc->vtag_actions++;
+
+       /* Only VLAN action is provided */
+       if (req_act == OTX2_FLOW_ACT_VLAN_STRIP)
+               flow->npc_action = NIX_RX_ACTIONOP_UCAST;
        /* Set NIX_RX_ACTIONOP */
-       if (req_act & (OTX2_FLOW_ACT_PF | OTX2_FLOW_ACT_VF)) {
+       else if (req_act & (OTX2_FLOW_ACT_PF | OTX2_FLOW_ACT_VF)) {
                flow->npc_action = NIX_RX_ACTIONOP_UCAST;
                if (req_act & OTX2_FLOW_ACT_QUEUE)
                        flow->npc_action |= (uint64_t)rq << 20;
@@ -1032,6 +1083,11 @@ otx2_flow_parse_actions(struct rte_eth_dev *dev,
                otx2_eth_set_rx_function(dev);
        }
 
+       if (npc->vtag_actions == 1) {
+               hw->rx_offload_flags |= NIX_RX_OFFLOAD_VLAN_STRIP_F;
+               otx2_eth_set_rx_function(dev);
+       }
+
 set_pf_func:
        /* Ideally AF must ensure that correct pf_func is set */
        flow->npc_action |= (uint64_t)pf_func << 4;
index 14625c9..6215a54 100644 (file)
@@ -916,20 +916,7 @@ otx2_flow_mcam_alloc_and_write(struct rte_flow *flow, struct otx2_mbox *mbox,
                (flow->nix_intf == OTX2_INTF_RX) ? NPC_MCAM_RX : NPC_MCAM_TX;
        req->enable_entry = 1;
        req->entry_data.action = flow->npc_action;
-
-       /*
-        * DPDK sets vtag action on per interface basis, not
-        * per flow basis. It is a matter of how we decide to support
-        * this pmd specific behavior. There are two ways:
-        *      1. Inherit the vtag action from the one configured
-        *         for this interface. This can be read from the
-        *         vtag_action configured for default mcam entry of
-        *         this pf_func.
-        *      2. Do not support vtag action with rte_flow.
-        *
-        * Second approach is used now.
-        */
-       req->entry_data.vtag_action = 0ULL;
+       req->entry_data.vtag_action = flow->vtag_action;
 
        for (idx = 0; idx < OTX2_MAX_MCAM_WIDTH_DWORDS; idx++) {
                req->entry_data.kw[idx] = flow->mcam_data[idx];