Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 119 insertions, 0 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4/sched.h b/drivers/net/ethernet/chelsio/cxgb4/sched.h
new file mode 100644
index 000000000..5f8b871d7
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb4/sched.h
@@ -0,0 +1,119 @@
+/*
+ * This file is part of the Chelsio T4 Ethernet driver for Linux.
+ *
+ * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __CXGB4_SCHED_H
+#define __CXGB4_SCHED_H
+
+#include <linux/spinlock.h>
+#include <linux/atomic.h>
+
+#define SCHED_CLS_NONE 0xff
+
+#define FW_SCHED_CLS_NONE 0xffffffff
+
+/* Max rate that can be set to a scheduling class is 100 Gbps */
+#define SCHED_MAX_RATE_KBPS 100000000U
+
+enum {
+	SCHED_STATE_ACTIVE,
+	SCHED_STATE_UNUSED,
+};
+
+enum sched_fw_ops {
+	SCHED_FW_OP_ADD,
+	SCHED_FW_OP_DEL,
+};
+
+enum sched_bind_type {
+	SCHED_QUEUE,
+	SCHED_FLOWC,
+};
+
+struct sched_queue_entry {
+	struct list_head list;
+	unsigned int cntxt_id;
+	struct ch_sched_queue param;
+};
+
+struct sched_flowc_entry {
+	struct list_head list;
+	struct ch_sched_flowc param;
+};
+
+struct sched_class {
+	u8 state;
+	u8 idx;
+	struct ch_sched_params info;
+	enum sched_bind_type bind_type;
+	struct list_head entry_list;
+	atomic_t refcnt;
+};
+
+struct sched_table {      /* per port scheduling table */
+	u8 sched_size;
+	struct sched_class tab[];
+};
+
+static inline bool can_sched(struct net_device *dev)
+{
+	struct port_info *pi = netdev2pinfo(dev);
+
+	return !pi->sched_tbl ? false : true;
+}
+
+static inline bool valid_class_id(struct net_device *dev, u8 class_id)
+{
+	struct port_info *pi = netdev2pinfo(dev);
+
+	if ((class_id > pi->sched_tbl->sched_size - 1) &&
+	    (class_id != SCHED_CLS_NONE))
+		return false;
+
+	return true;
+}
+
+struct sched_class *cxgb4_sched_queue_lookup(struct net_device *dev,
+					     struct ch_sched_queue *p);
+int cxgb4_sched_class_bind(struct net_device *dev, void *arg,
+			   enum sched_bind_type type);
+int cxgb4_sched_class_unbind(struct net_device *dev, void *arg,
+			     enum sched_bind_type type);
+
+struct sched_class *cxgb4_sched_class_alloc(struct net_device *dev,
+					    struct ch_sched_params *p);
+void cxgb4_sched_class_free(struct net_device *dev, u8 classid);
+
+struct sched_table *t4_init_sched(unsigned int size);
+void t4_cleanup_sched(struct adapter *adap);
+#endif  /* __CXGB4_SCHED_H */