i40e: APIs to Add/remove port mirroring rules

This patch implements necessary functions related to port
mirroring features such as add/delete mirror rule, function
to set promiscuous VLAN mode for VSI if mirror rule_type is
"VLAN Mirroring".

Change-ID: Iaf513fd5f188f99dcb977b48f99e73185dfddc40
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 9018f28..976b03f 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -2033,6 +2033,37 @@ i40e_status i40e_aq_set_vsi_broadcast(struct i40e_hw *hw,
 }
 
 /**
+ * i40e_aq_set_vsi_vlan_promisc - control the VLAN promiscuous setting
+ * @hw: pointer to the hw struct
+ * @seid: vsi number
+ * @enable: set MAC L2 layer unicast promiscuous enable/disable for a given VLAN
+ * @cmd_details: pointer to command details structure or NULL
+ **/
+i40e_status i40e_aq_set_vsi_vlan_promisc(struct i40e_hw *hw,
+                                      u16 seid, bool enable,
+                                      struct i40e_asq_cmd_details *cmd_details)
+{
+       struct i40e_aq_desc desc;
+       struct i40e_aqc_set_vsi_promiscuous_modes *cmd =
+               (struct i40e_aqc_set_vsi_promiscuous_modes *)&desc.params.raw;
+       i40e_status status;
+       u16 flags = 0;
+
+       i40e_fill_default_direct_cmd_desc(&desc,
+                                       i40e_aqc_opc_set_vsi_promiscuous_modes);
+       if (enable)
+               flags |= I40E_AQC_SET_VSI_PROMISC_VLAN;
+
+       cmd->promiscuous_flags = cpu_to_le16(flags);
+       cmd->valid_flags = cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_VLAN);
+       cmd->seid = cpu_to_le16(seid);
+
+       status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+
+       return status;
+}
+
+/**
  * i40e_get_vsi_params - get VSI configuration info
  * @hw: pointer to the hw struct
  * @vsi_ctx: pointer to a vsi context struct
@@ -2470,6 +2501,137 @@ i40e_status i40e_aq_remove_macvlan(struct i40e_hw *hw, u16 seid,
 }
 
 /**
+ * i40e_mirrorrule_op - Internal helper function to add/delete mirror rule
+ * @hw: pointer to the hw struct
+ * @opcode: AQ opcode for add or delete mirror rule
+ * @sw_seid: Switch SEID (to which rule refers)
+ * @rule_type: Rule Type (ingress/egress/VLAN)
+ * @id: Destination VSI SEID or Rule ID
+ * @count: length of the list
+ * @mr_list: list of mirrored VSI SEIDs or VLAN IDs
+ * @cmd_details: pointer to command details structure or NULL
+ * @rule_id: Rule ID returned from FW
+ * @rule_used: Number of rules used in internal switch
+ * @rule_free: Number of rules free in internal switch
+ *
+ * Add/Delete a mirror rule to a specific switch. Mirror rules are supported for
+ * VEBs/VEPA elements only
+ **/
+static i40e_status i40e_mirrorrule_op(struct i40e_hw *hw,
+                               u16 opcode, u16 sw_seid, u16 rule_type, u16 id,
+                               u16 count, __le16 *mr_list,
+                               struct i40e_asq_cmd_details *cmd_details,
+                               u16 *rule_id, u16 *rules_used, u16 *rules_free)
+{
+       struct i40e_aq_desc desc;
+       struct i40e_aqc_add_delete_mirror_rule *cmd =
+               (struct i40e_aqc_add_delete_mirror_rule *)&desc.params.raw;
+       struct i40e_aqc_add_delete_mirror_rule_completion *resp =
+       (struct i40e_aqc_add_delete_mirror_rule_completion *)&desc.params.raw;
+       i40e_status status;
+       u16 buf_size;
+
+       buf_size = count * sizeof(*mr_list);
+
+       /* prep the rest of the request */
+       i40e_fill_default_direct_cmd_desc(&desc, opcode);
+       cmd->seid = cpu_to_le16(sw_seid);
+       cmd->rule_type = cpu_to_le16(rule_type &
+                                    I40E_AQC_MIRROR_RULE_TYPE_MASK);
+       cmd->num_entries = cpu_to_le16(count);
+       /* Dest VSI for add, rule_id for delete */
+       cmd->destination = cpu_to_le16(id);
+       if (mr_list) {
+               desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF |
+                                               I40E_AQ_FLAG_RD));
+               if (buf_size > I40E_AQ_LARGE_BUF)
+                       desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
+       }
+
+       status = i40e_asq_send_command(hw, &desc, mr_list, buf_size,
+                                      cmd_details);
+       if (!status ||
+           hw->aq.asq_last_status == I40E_AQ_RC_ENOSPC) {
+               if (rule_id)
+                       *rule_id = le16_to_cpu(resp->rule_id);
+               if (rules_used)
+                       *rules_used = le16_to_cpu(resp->mirror_rules_used);
+               if (rules_free)
+                       *rules_free = le16_to_cpu(resp->mirror_rules_free);
+       }
+       return status;
+}
+
+/**
+ * i40e_aq_add_mirrorrule - add a mirror rule
+ * @hw: pointer to the hw struct
+ * @sw_seid: Switch SEID (to which rule refers)
+ * @rule_type: Rule Type (ingress/egress/VLAN)
+ * @dest_vsi: SEID of VSI to which packets will be mirrored
+ * @count: length of the list
+ * @mr_list: list of mirrored VSI SEIDs or VLAN IDs
+ * @cmd_details: pointer to command details structure or NULL
+ * @rule_id: Rule ID returned from FW
+ * @rule_used: Number of rules used in internal switch
+ * @rule_free: Number of rules free in internal switch
+ *
+ * Add mirror rule. Mirror rules are supported for VEBs or VEPA elements only
+ **/
+i40e_status i40e_aq_add_mirrorrule(struct i40e_hw *hw, u16 sw_seid,
+                       u16 rule_type, u16 dest_vsi, u16 count, __le16 *mr_list,
+                       struct i40e_asq_cmd_details *cmd_details,
+                       u16 *rule_id, u16 *rules_used, u16 *rules_free)
+{
+       if (!(rule_type == I40E_AQC_MIRROR_RULE_TYPE_ALL_INGRESS ||
+           rule_type == I40E_AQC_MIRROR_RULE_TYPE_ALL_EGRESS)) {
+               if (count == 0 || !mr_list)
+                       return I40E_ERR_PARAM;
+       }
+
+       return i40e_mirrorrule_op(hw, i40e_aqc_opc_add_mirror_rule, sw_seid,
+                                 rule_type, dest_vsi, count, mr_list,
+                                 cmd_details, rule_id, rules_used, rules_free);
+}
+
+/**
+ * i40e_aq_delete_mirrorrule - delete a mirror rule
+ * @hw: pointer to the hw struct
+ * @sw_seid: Switch SEID (to which rule refers)
+ * @rule_type: Rule Type (ingress/egress/VLAN)
+ * @count: length of the list
+ * @rule_id: Rule ID that is returned in the receive desc as part of
+ *             add_mirrorrule.
+ * @mr_list: list of mirrored VLAN IDs to be removed
+ * @cmd_details: pointer to command details structure or NULL
+ * @rule_used: Number of rules used in internal switch
+ * @rule_free: Number of rules free in internal switch
+ *
+ * Delete a mirror rule. Mirror rules are supported for VEBs/VEPA elements only
+ **/
+i40e_status i40e_aq_delete_mirrorrule(struct i40e_hw *hw, u16 sw_seid,
+                       u16 rule_type, u16 rule_id, u16 count, __le16 *mr_list,
+                       struct i40e_asq_cmd_details *cmd_details,
+                       u16 *rules_used, u16 *rules_free)
+{
+       /* Rule ID has to be valid except rule_type: INGRESS VLAN mirroring */
+       if (rule_type != I40E_AQC_MIRROR_RULE_TYPE_VLAN) {
+               if (!rule_id)
+                       return I40E_ERR_PARAM;
+       } else {
+               /* count and mr_list shall be valid for rule_type INGRESS VLAN
+                * mirroring. For other rule_type, count and rule_type should
+                * not matter.
+                */
+               if (count == 0 || !mr_list)
+                       return I40E_ERR_PARAM;
+       }
+
+       return i40e_mirrorrule_op(hw, i40e_aqc_opc_delete_mirror_rule, sw_seid,
+                                 rule_type, rule_id, count, mr_list,
+                                 cmd_details, NULL, rules_used, rules_free);
+}
+
+/**
  * i40e_aq_send_msg_to_vf
  * @hw: pointer to the hardware structure
  * @vfid: VF id to send msg

diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
index bb9d583..45af29b 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
@@ -127,6 +127,9 @@ i40e_status i40e_aq_set_vsi_unicast_promiscuous(struct i40e_hw *hw,
                u16 vsi_id, bool set, struct i40e_asq_cmd_details *cmd_details);
 i40e_status i40e_aq_set_vsi_multicast_promiscuous(struct i40e_hw *hw,
                u16 vsi_id, bool set, struct i40e_asq_cmd_details *cmd_details);
+i40e_status i40e_aq_set_vsi_vlan_promisc(struct i40e_hw *hw,
+                               u16 seid, bool enable,
+                               struct i40e_asq_cmd_details *cmd_details);
 i40e_status i40e_aq_get_vsi_params(struct i40e_hw *hw,
                                struct i40e_vsi_context *vsi_ctx,
                                struct i40e_asq_cmd_details *cmd_details);
@@ -149,6 +152,15 @@ i40e_status i40e_aq_add_macvlan(struct i40e_hw *hw, u16 vsi_id,
 i40e_status i40e_aq_remove_macvlan(struct i40e_hw *hw, u16 vsi_id,
                        struct i40e_aqc_remove_macvlan_element_data *mv_list,
                        u16 count, struct i40e_asq_cmd_details *cmd_details);
+i40e_status i40e_aq_add_mirrorrule(struct i40e_hw *hw, u16 sw_seid,
+                       u16 rule_type, u16 dest_vsi, u16 count, __le16 *mr_list,
+                       struct i40e_asq_cmd_details *cmd_details,
+                       u16 *rule_id, u16 *rules_used, u16 *rules_free);
+i40e_status i40e_aq_delete_mirrorrule(struct i40e_hw *hw, u16 sw_seid,
+                       u16 rule_type, u16 rule_id, u16 count, __le16 *mr_list,
+                       struct i40e_asq_cmd_details *cmd_details,
+                       u16 *rules_used, u16 *rules_free);
+
 i40e_status i40e_aq_send_msg_to_vf(struct i40e_hw *hw, u16 vfid,
                                u32 v_opcode, u32 v_retval, u8 *msg, u16 msglen,
                                struct i40e_asq_cmd_details *cmd_details);