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net/ice/base: add functions for resource counter

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1. ice_alloc_res_cntr - allocate resource counter
2. ice_free_res_cntr - free resource counter
3. ice_alloc_vlan_res_counter - allocate vlan resource counter
4. ice_free_vlan_res_counter - free vlan resource counter

These APIs will be used when try to count the number of a flow be
hit.

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 13:44:26 +08:00 committed by Ferruh Yigit
parent d781ccbdd1
commit f1ffdec6cf
2 changed files with 103 additions and 0 deletions
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97
drivers/net/ice/base/ice_switch.c
View File

@ -3238,9 +3238,106 @@ void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle)
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC_VLAN);
}
/**
* ice_alloc_res_cntr - allocating resource counter
* @hw: pointer to the hardware structure
* @type: type of resource
* @alloc_shared: if set it is shared else dedicated
* @num_items: number of entries requested for FD resource type
* @counter_id: counter index returned by AQ call
*/
enum ice_status
ice_alloc_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
u16 *counter_id)
{
struct ice_aqc_alloc_free_res_elem *buf;
enum ice_status status;
u16 buf_len;
/* Allocate resource */
buf_len = sizeof(*buf);
buf = (struct ice_aqc_alloc_free_res_elem *)
ice_malloc(hw, buf_len);
if (!buf)
return ICE_ERR_NO_MEMORY;
buf->num_elems = CPU_TO_LE16(num_items);
buf->res_type = CPU_TO_LE16(((type << ICE_AQC_RES_TYPE_S) &
ICE_AQC_RES_TYPE_M) | alloc_shared);
status = ice_aq_alloc_free_res(hw, 1, buf, buf_len,
ice_aqc_opc_alloc_res, NULL);
if (status)
goto exit;
*counter_id = LE16_TO_CPU(buf->elem[0].e.sw_resp);
exit:
ice_free(hw, buf);
return status;
}
/**
* ice_free_res_cntr - free resource counter
* @hw: pointer to the hardware structure
* @type: type of resource
* @alloc_shared: if set it is shared else dedicated
* @num_items: number of entries to be freed for FD resource type
* @counter_id: counter ID resource which needs to be freed
*/
enum ice_status
ice_free_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
u16 counter_id)
{
struct ice_aqc_alloc_free_res_elem *buf;
enum ice_status status;
u16 buf_len;
/* Free resource */
buf_len = sizeof(*buf);
buf = (struct ice_aqc_alloc_free_res_elem *)
ice_malloc(hw, buf_len);
if (!buf)
return ICE_ERR_NO_MEMORY;
buf->num_elems = CPU_TO_LE16(num_items);
buf->res_type = CPU_TO_LE16(((type << ICE_AQC_RES_TYPE_S) &
ICE_AQC_RES_TYPE_M) | alloc_shared);
buf->elem[0].e.sw_resp = CPU_TO_LE16(counter_id);
status = ice_aq_alloc_free_res(hw, 1, buf, buf_len,
ice_aqc_opc_free_res, NULL);
if (status)
ice_debug(hw, ICE_DBG_SW,
"counter resource could not be freed\n");
ice_free(hw, buf);
return status;
}
/**
* ice_alloc_vlan_res_counter - obtain counter resource for VLAN type
* @hw: pointer to the hardware structure
* @counter_id: returns counter index
*/
enum ice_status ice_alloc_vlan_res_counter(struct ice_hw *hw, u16 *counter_id)
{
return ice_alloc_res_cntr(hw, ICE_AQC_RES_TYPE_VLAN_COUNTER,
ICE_AQC_RES_TYPE_FLAG_DEDICATED, 1,
counter_id);
}
/**
* ice_free_vlan_res_counter - Free counter resource for VLAN type
* @hw: pointer to the hardware structure
* @counter_id: counter index to be freed
*/
enum ice_status ice_free_vlan_res_counter(struct ice_hw *hw, u16 counter_id)
{
return ice_free_res_cntr(hw, ICE_AQC_RES_TYPE_VLAN_COUNTER,
ICE_AQC_RES_TYPE_FLAG_DEDICATED, 1,
counter_id);
}
/**
* ice_replay_vsi_fltr - Replay filters for requested VSI

6
drivers/net/ice/base/ice_switch.h
View File

@ -338,6 +338,12 @@ enum ice_status
ice_alloc_vlan_res_counter(struct ice_hw *hw, u16 *counter_id);
enum ice_status
ice_free_vlan_res_counter(struct ice_hw *hw, u16 counter_id);
enum ice_status
ice_alloc_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
u16 *counter_id);
enum ice_status
ice_free_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
u16 counter_id);
/* Switch/bridge related commands */
enum ice_status ice_update_sw_rule_bridge_mode(struct ice_hw *hw);