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net/ice/base: add helper functions for flow management

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1. ice_rem_all_sw_rules_info - remove all switch rules.
2. ice_reply_all_fltr - replay all filters stored in book keeping list.

These APIs will be used when switch rule feature is enabled.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Reviewed-by: Qiming Yang <qiming.yang@intel.com>
Reviewed-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
This commit is contained in:
Qi Zhang 2019-03-25 13:44:29 +08:00 committed by Ferruh Yigit
parent 02acdce2f5
commit e1494d05b2
2 changed files with 109 additions and 0 deletions
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107
drivers/net/ice/base/ice_switch.c
View File

@ -2667,6 +2667,23 @@ ice_rem_sw_rule_info(struct ice_hw *hw, struct LIST_HEAD_TYPE *rule_head)
}
/**
* ice_rem_all_sw_rules_info
* @hw: pointer to the hardware structure
*/
void ice_rem_all_sw_rules_info(struct ice_hw *hw)
{
struct ice_switch_info *sw = hw->switch_info;
u8 i;
for (i = 0; i < ICE_MAX_NUM_RECIPES; i++) {
struct LIST_HEAD_TYPE *rule_head;
rule_head = &sw->recp_list[i].filt_rules;
if (!sw->recp_list[i].adv_rule)
ice_rem_sw_rule_info(hw, rule_head);
}
}
/**
* ice_cfg_dflt_vsi - change state of VSI to set/clear default
@ -3746,6 +3763,96 @@ ice_add_mac_with_counter(struct ice_hw *hw, struct ice_fltr_info *f_info)
return ret;
}
/**
* ice_replay_fltr - Replay all the filters stored by a specific list head
* @hw: pointer to the hardware structure
* @list_head: list for which filters needs to be replayed
* @recp_id: Recipe ID for which rules need to be replayed
*/
static enum ice_status
ice_replay_fltr(struct ice_hw *hw, u8 recp_id, struct LIST_HEAD_TYPE *list_head)
{
struct ice_fltr_mgmt_list_entry *itr;
struct LIST_HEAD_TYPE l_head;
enum ice_status status = ICE_SUCCESS;
if (LIST_EMPTY(list_head))
return status;
/* Move entries from the given list_head to a temporary l_head so that
* they can be replayed. Otherwise when trying to re-add the same
* filter, the function will return already exists
*/
LIST_REPLACE_INIT(list_head, &l_head);
/* Mark the given list_head empty by reinitializing it so filters
* could be added again by *handler
*/
LIST_FOR_EACH_ENTRY(itr, &l_head, ice_fltr_mgmt_list_entry,
list_entry) {
struct ice_fltr_list_entry f_entry;
f_entry.fltr_info = itr->fltr_info;
if (itr->vsi_count < 2 && recp_id != ICE_SW_LKUP_VLAN) {
status = ice_add_rule_internal(hw, recp_id, &f_entry);
if (status != ICE_SUCCESS)
goto end;
continue;
}
/* Add a filter per VSI separately */
while (1) {
u16 vsi_handle;
vsi_handle =
ice_find_first_bit(itr->vsi_list_info->vsi_map,
ICE_MAX_VSI);
if (!ice_is_vsi_valid(hw, vsi_handle))
break;
ice_clear_bit(vsi_handle, itr->vsi_list_info->vsi_map);
f_entry.fltr_info.vsi_handle = vsi_handle;
f_entry.fltr_info.fwd_id.hw_vsi_id =
ice_get_hw_vsi_num(hw, vsi_handle);
f_entry.fltr_info.fltr_act = ICE_FWD_TO_VSI;
if (recp_id == ICE_SW_LKUP_VLAN)
status = ice_add_vlan_internal(hw, &f_entry);
else
status = ice_add_rule_internal(hw, recp_id,
&f_entry);
if (status != ICE_SUCCESS)
goto end;
}
}
end:
/* Clear the filter management list */
ice_rem_sw_rule_info(hw, &l_head);
return status;
}
/**
* ice_replay_all_fltr - replay all filters stored in bookkeeping lists
* @hw: pointer to the hardware structure
*
* NOTE: This function does not clean up partially added filters on error.
* It is up to caller of the function to issue a reset or fail early.
*/
enum ice_status ice_replay_all_fltr(struct ice_hw *hw)
{
struct ice_switch_info *sw = hw->switch_info;
enum ice_status status = ICE_SUCCESS;
u8 i;
for (i = 0; i < ICE_MAX_NUM_RECIPES; i++) {
struct LIST_HEAD_TYPE *head = &sw->recp_list[i].filt_rules;
status = ice_replay_fltr(hw, i, head);
if (status != ICE_SUCCESS)
return status;
}
return status;
}
/**
* ice_replay_vsi_fltr - Replay filters for requested VSI
* @hw: pointer to the hardware structure

2
drivers/net/ice/base/ice_switch.h
View File

@ -362,6 +362,7 @@ ice_aq_get_res_descs(struct ice_hw *hw, u16 num_entries,
struct ice_sq_cd *cd);
enum ice_status
ice_add_vlan(struct ice_hw *hw, struct LIST_HEAD_TYPE *m_list);
void ice_rem_all_sw_rules_info(struct ice_hw *hw);
enum ice_status ice_add_mac(struct ice_hw *hw, struct LIST_HEAD_TYPE *m_lst);
enum ice_status ice_remove_mac(struct ice_hw *hw, struct LIST_HEAD_TYPE *m_lst);
enum ice_status
@ -409,6 +410,7 @@ ice_get_vsi_vlan_promisc(struct ice_hw *hw, u16 vsi_handle, u8 *promisc_mask,
enum ice_status ice_replay_all_fltr(struct ice_hw *hw);
enum ice_status ice_init_def_sw_recp(struct ice_hw *hw);
u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle);