Imported Upstream version 16.07-rc1

[deb_dpdk.git] / drivers / net / qede / base / ecore_cxt_api.h

diff --git a/drivers/net/qede/base/ecore_cxt_api.h b/drivers/net/qede/base/ecore_cxt_api.h
new file mode 100644 (file)
index 0000000..d98dddb
--- /dev/null
+++ b/drivers/net/qede/base/ecore_cxt_api.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2016 QLogic Corporation.
+ * All rights reserved.
+ * www.qlogic.com
+ *
+ * See LICENSE.qede_pmd for copyright and licensing details.
+ */
+
+#ifndef __ECORE_CXT_API_H__
+#define __ECORE_CXT_API_H__
+
+struct ecore_hwfn;
+
+struct ecore_cxt_info {
+       void *p_cxt;
+       u32 iid;
+       enum protocol_type type;
+};
+
+#define MAX_TID_BLOCKS                 512
+struct ecore_tid_mem {
+       u32 tid_size;
+       u32 num_tids_per_block;
+       u32 waste;
+       u8 *blocks[MAX_TID_BLOCKS];     /* 4K */
+};
+
+static OSAL_INLINE void *get_task_mem(struct ecore_tid_mem *info, u32 tid)
+{
+       /* note: waste is superfluous */
+       return (void *)(info->blocks[tid / info->num_tids_per_block] +
+                       (tid % info->num_tids_per_block) * info->tid_size);
+
+       /* more elaborate alternative with no modulo
+        * u32 mask = info->tid_size * info->num_tids_per_block +
+        *            info->waste - 1;
+        * u32 index = tid / info->num_tids_per_block;
+        * u32 offset = tid * info->tid_size + index * info->waste;
+        * return (void *)(blocks[index] + (offset & mask));
+        */
+}
+
+/**
+* @brief ecore_cxt_acquire - Acquire a new cid of a specific protocol type
+*
+* @param p_hwfn
+* @param type
+* @param p_cid
+*
+* @return enum _ecore_status_t
+*/
+enum _ecore_status_t ecore_cxt_acquire_cid(struct ecore_hwfn *p_hwfn,
+                                          enum protocol_type type,
+                                          u32 *p_cid);
+
+/**
+* @brief ecoreo_cid_get_cxt_info - Returns the context info for a specific cid
+*
+*
+* @param p_hwfn
+* @param p_info in/out
+*
+* @return enum _ecore_status_t
+*/
+enum _ecore_status_t ecore_cxt_get_cid_info(struct ecore_hwfn *p_hwfn,
+                                           struct ecore_cxt_info *p_info);
+
+/**
+* @brief ecore_cxt_get_tid_mem_info
+*
+* @param p_hwfn
+* @param p_info
+*
+* @return enum _ecore_status_t
+*/
+enum _ecore_status_t ecore_cxt_get_tid_mem_info(struct ecore_hwfn *p_hwfn,
+                                               struct ecore_tid_mem *p_info);
+
+#endif