qed: Utilize resource-lock based scheme

Management firmware is used as an arbiter between the various PFs
in matters of resources, but some of the resources that need to
be divided are dependent on the non-management firmware used,
so management firmware first needs to be told how many resources
there are before trying to divide them.

As part of the initialization sequence, driver would first inform
the management firmware of the available resources under
a dedicated resource lock, and afterwards request for various
resources which might be based on the previous set values.

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 38 insertions, 11 deletions

diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
index 8673ac10262a..ac7d406be1ed 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
@@ -743,33 +743,60 @@ int qed_mcp_mask_parities(struct qed_hwfn *p_hwfn,
 			  struct qed_ptt *p_ptt, u32 mask_parities);
 
 /**
- * @brief Send eswitch mode to MFW
+ * @brief - Sets the MFW's max value for the given resource
  *
  *  @param p_hwfn
  *  @param p_ptt
- *  @param eswitch - eswitch mode
+ *  @param res_id
+ *  @param resc_max_val
+ *  @param p_mcp_resp
  *
  * @return int - 0 - operation was successful.
  */
-int qed_mcp_ov_update_eswitch(struct qed_hwfn *p_hwfn,
-			      struct qed_ptt *p_ptt,
-			      enum qed_ov_eswitch eswitch);
+int
+qed_mcp_set_resc_max_val(struct qed_hwfn *p_hwfn,
+			 struct qed_ptt *p_ptt,
+			 enum qed_resources res_id,
+			 u32 resc_max_val, u32 *p_mcp_resp);
 
 /**
  * @brief - Gets the MFW allocation info for the given resource
  *
  *  @param p_hwfn
  *  @param p_ptt
- *  @param p_resc_info - descriptor of requested resource
+ *  @param res_id
  *  @param p_mcp_resp
- *  @param p_mcp_param
+ *  @param p_resc_num
+ *  @param p_resc_start
  *
  * @return int - 0 - operation was successful.
  */
-int qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
-			  struct qed_ptt *p_ptt,
-			  struct resource_info *p_resc_info,
-			  u32 *p_mcp_resp, u32 *p_mcp_param);
+int
+qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
+		      struct qed_ptt *p_ptt,
+		      enum qed_resources res_id,
+		      u32 *p_mcp_resp, u32 *p_resc_num, u32 *p_resc_start);
+
+/**
+ * @brief Send eswitch mode to MFW
+ *
+ *  @param p_hwfn
+ *  @param p_ptt
+ *  @param eswitch - eswitch mode
+ *
+ * @return int - 0 - operation was successful.
+ */
+int qed_mcp_ov_update_eswitch(struct qed_hwfn *p_hwfn,
+			      struct qed_ptt *p_ptt,
+			      enum qed_ov_eswitch eswitch);
+
+#define QED_MCP_RESC_LOCK_MIN_VAL       RESOURCE_DUMP
+#define QED_MCP_RESC_LOCK_MAX_VAL       31
+
+enum qed_resc_lock {
+	QED_RESC_LOCK_DBG_DUMP = QED_MCP_RESC_LOCK_MIN_VAL,
+	QED_RESC_LOCK_RESC_ALLOC = QED_MCP_RESC_LOCK_MAX_VAL
+};
 
 /**
  * @brief - Initiates PF FLR