[dpdk-dev] [PATCH 11/37] net/ice/base: add APIs to get allocated resources

[Qi Zhang <qi.z.zhang@intel.com>]

1. ice_aq_get_res_alloc - get allocated resources.
2. ice_aq_get_res_descs - get allocated resource descriptors.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ice/base/ice_adminq_cmd.h | 53 +++++++++++++++++++++-
 drivers/net/ice/base/ice_switch.c     | 83 +++++++++++++++++++++++++++++++++++
 drivers/net/ice/base/ice_switch.h     | 12 +++++
 3 files changed, 147 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ice/base/ice_adminq_cmd.h b/drivers/net/ice/base/ice_adminq_cmd.h
index 724657af6..ca3d40c8b 100644
--- a/drivers/net/ice/base/ice_adminq_cmd.h
+++ b/drivers/net/ice/base/ice_adminq_cmd.h
@@ -281,6 +281,34 @@ struct ice_aqc_get_sw_cfg_resp {
 
 #define ICE_AQC_RES_TYPE_FLAG_DEDICATED			0x00
 
+#define ICE_AQC_RES_TYPE_S	0
+#define ICE_AQC_RES_TYPE_M	(0x07F << ICE_AQC_RES_TYPE_S)
+
+/* Get Resource Allocation command (indirect 0x0204) */
+struct ice_aqc_get_res_alloc {
+	__le16 resp_elem_num; /* Used in response, reserved in command */
+	u8 reserved[6];
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
+/* Get Resource Allocation Response Buffer per response */
+struct ice_aqc_get_res_resp_elem {
+	__le16 res_type; /* Types defined above cmd 0x0204 */
+	__le16 total_capacity; /* Resources available to all PF's */
+	__le16 total_function; /* Resources allocated for a PF */
+	__le16 total_shared; /* Resources allocated as shared */
+	__le16 total_free; /* Resources un-allocated/not reserved by any PF */
+};
+
+/* Buffer for Get Resource command */
+struct ice_aqc_get_res_resp {
+	/* Number of resource entries to be calculated using
+	 * datalen/sizeof(struct ice_aqc_cmd_resp)).
+	 * Value of 'datalen' gets updated as part of response.
+	 */
+	struct ice_aqc_get_res_resp_elem elem[1];
+};
 
 
 /* Allocate Resources command (indirect 0x0208)
@@ -314,6 +342,28 @@ struct ice_aqc_alloc_free_res_elem {
 };
 
 
+/* Get Allocated Resource Descriptors Command (indirect 0x020A) */
+struct ice_aqc_get_allocd_res_desc {
+	union {
+		struct {
+			__le16 res; /* Types defined above cmd 0x0204 */
+			__le16 first_desc;
+			__le32 reserved;
+		} cmd;
+		struct {
+			__le16 res;
+			__le16 next_desc;
+			__le16 num_desc;
+			__le16 reserved;
+		} resp;
+	} ops;
+	__le32 addr_high;
+	__le32 addr_low;
+};
+
+struct ice_aqc_get_allocd_res_desc_resp {
+	struct ice_aqc_res_elem elem[1];
+};
 
 
 /* Add VSI (indirect 0x0210)
@@ -1912,7 +1962,6 @@ struct ice_aq_desc {
 		struct ice_aqc_query_node_to_root query_node_to_root;
 		struct ice_aqc_cfg_l2_node_cgd cfg_l2_node_cgd;
 		struct ice_aqc_rl_profile rl_profile;
-
 		struct ice_aqc_nvm nvm;
 		struct ice_aqc_nvm_cfg nvm_cfg;
 		struct ice_aqc_nvm_checksum nvm_checksum;
@@ -1930,6 +1979,8 @@ struct ice_aq_desc {
 		struct ice_aqc_get_clear_fw_log get_clear_fw_log;
 		struct ice_aqc_set_mac_lb set_mac_lb;
 		struct ice_aqc_alloc_free_res_cmd sw_res_ctrl;
+		struct ice_aqc_get_res_alloc get_res;
+		struct ice_aqc_get_allocd_res_desc get_res_desc;
 		struct ice_aqc_set_mac_cfg set_mac_cfg;
 		struct ice_aqc_set_event_mask set_event_mask;
 		struct ice_aqc_get_link_status get_link_status;
diff --git a/drivers/net/ice/base/ice_switch.c b/drivers/net/ice/base/ice_switch.c
index 4af6a323c..c985c1e31 100644
--- a/drivers/net/ice/base/ice_switch.c
+++ b/drivers/net/ice/base/ice_switch.c
@@ -2042,6 +2042,89 @@ ice_remove_rule_internal(struct ice_hw *hw, u8 recp_id,
 	return status;
 }
 
+/**
+ * ice_aq_get_res_alloc - get allocated resources
+ * @hw: pointer to the HW struct
+ * @num_entries: pointer to u16 to store the number of resource entries returned
+ * @buf: pointer to user-supplied buffer
+ * @buf_size: size of buff
+ * @cd: pointer to command details structure or NULL
+ *
+ * The user-supplied buffer must be large enough to store the resource
+ * information for all resource types. Each resource type is an
+ * ice_aqc_get_res_resp_data_elem structure.
+ */
+enum ice_status
+ice_aq_get_res_alloc(struct ice_hw *hw, u16 *num_entries, void *buf,
+		     u16 buf_size, struct ice_sq_cd *cd)
+{
+	struct ice_aqc_get_res_alloc *resp;
+	enum ice_status status;
+	struct ice_aq_desc desc;
+
+	if (!buf)
+		return ICE_ERR_BAD_PTR;
+
+	if (buf_size < ICE_AQ_GET_RES_ALLOC_BUF_LEN)
+		return ICE_ERR_INVAL_SIZE;
+
+	resp = &desc.params.get_res;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_res_alloc);
+	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
+
+	if (!status && num_entries)
+		*num_entries = LE16_TO_CPU(resp->resp_elem_num);
+
+	return status;
+}
+
+/**
+ * ice_aq_get_res_descs - get allocated resource descriptors
+ * @hw: pointer to the hardware structure
+ * @num_entries: number of resource entries in buffer
+ * @buf: Indirect buffer to hold data parameters and response
+ * @buf_size: size of buffer for indirect commands
+ * @res_type: resource type
+ * @res_shared: is resource shared
+ * @desc_id: input - first desc ID to start; output - next desc ID
+ * @cd: pointer to command details structure or NULL
+ */
+enum ice_status
+ice_aq_get_res_descs(struct ice_hw *hw, u16 num_entries,
+		     struct ice_aqc_get_allocd_res_desc_resp *buf,
+		     u16 buf_size, u16 res_type, bool res_shared, u16 *desc_id,
+		     struct ice_sq_cd *cd)
+{
+	struct ice_aqc_get_allocd_res_desc *cmd;
+	struct ice_aq_desc desc;
+	enum ice_status status;
+
+	ice_debug(hw, ICE_DBG_TRACE, "ice_aq_get_res_descs");
+
+	cmd = &desc.params.get_res_desc;
+
+	if (!buf)
+		return ICE_ERR_PARAM;
+
+	if (buf_size != (num_entries * sizeof(*buf)))
+		return ICE_ERR_PARAM;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_allocd_res_desc);
+
+	cmd->ops.cmd.res = CPU_TO_LE16(((res_type << ICE_AQC_RES_TYPE_S) &
+					 ICE_AQC_RES_TYPE_M) | (res_shared ?
+					ICE_AQC_RES_TYPE_FLAG_SHARED : 0));
+	cmd->ops.cmd.first_desc = CPU_TO_LE16(*desc_id);
+
+	desc.flags |= CPU_TO_LE16(ICE_AQ_FLAG_RD);
+
+	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
+	if (!status)
+		*desc_id = LE16_TO_CPU(cmd->ops.resp.next_desc);
+
+	return status;
+}
 
 /**
  * ice_add_mac - Add a MAC address based filter rule
diff --git a/drivers/net/ice/base/ice_switch.h b/drivers/net/ice/base/ice_switch.h
index f331621e1..4b77d920f 100644
--- a/drivers/net/ice/base/ice_switch.h
+++ b/drivers/net/ice/base/ice_switch.h
@@ -13,6 +13,10 @@
 #define ICE_DFLT_VSI_INVAL 0xff
 
 
+/* Worst case buffer length for ice_aqc_opc_get_res_alloc */
+#define ICE_MAX_RES_TYPES 0x80
+#define ICE_AQ_GET_RES_ALLOC_BUF_LEN \
+	(ICE_MAX_RES_TYPES * sizeof(struct ice_aqc_get_res_resp_elem))
 
 #define ICE_VSI_INVAL_ID 0xFFFF
 #define ICE_INVAL_Q_HANDLE 0xFFFF
@@ -343,6 +347,14 @@ ice_alloc_sw(struct ice_hw *hw, bool ena_stats, bool shared_res, u16 *sw_id,
 enum ice_status
 ice_free_sw(struct ice_hw *hw, u16 sw_id, u16 counter_id);
 enum ice_status
+ice_aq_get_res_alloc(struct ice_hw *hw, u16 *num_entries, void *buf,
+		     u16 buf_size, struct ice_sq_cd *cd);
+enum ice_status
+ice_aq_get_res_descs(struct ice_hw *hw, u16 num_entries,
+		     struct ice_aqc_get_allocd_res_desc_resp *buf,
+		     u16 buf_size, u16 res_type, bool res_shared, u16 *desc_id,
+		     struct ice_sq_cd *cd);
+enum ice_status
 ice_add_vlan(struct ice_hw *hw, struct LIST_HEAD_TYPE *m_list);
 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);
-- 
2.13.6