-/*
- * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved.
* Copyright 2007 Nuova Systems, Inc. All rights reserved.
- *
- * Copyright (c) 2014, Cisco Systems, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
*/
#ifndef _ENIC_RES_H_
#include "vnic_wq.h"
#include "vnic_rq.h"
+#define min_t(type, x, y) ({ \
+ type __min1 = (x); \
+ type __min2 = (y); \
+ __min1 < __min2 ? __min1 : __min2; })
+
+#define max_t(type, x, y) ({ \
+ type __max1 = (x); \
+ type __max2 = (y); \
+ __max1 > __max2 ? __max1 : __max2; })
+
#define ENIC_MIN_WQ_DESCS 64
#define ENIC_MAX_WQ_DESCS 4096
#define ENIC_MIN_RQ_DESCS 64
#define ENIC_MAX_RQ_DESCS 4096
+/* A descriptor ring has a multiple of 32 descriptors */
+#define ENIC_ALIGN_DESCS 32
+#define ENIC_ALIGN_DESCS_MASK ~(ENIC_ALIGN_DESCS - 1)
+
+/* Request a completion index every 32 buffers (roughly packets) */
+#define ENIC_WQ_CQ_THRESH 32
+
#define ENIC_MIN_MTU 68
/* Does not include (possible) inserted VLAN tag and FCS */
-#define ENIC_DEFAULT_MAX_PKT_SIZE 9022
+#define ENIC_DEFAULT_RX_MAX_PKT_SIZE 9022
+
+/* Does not include (possible) inserted VLAN tag and FCS */
+#define ENIC_TX_MAX_PKT_SIZE 9208
#define ENIC_MULTICAST_PERFECT_FILTERS 32
#define ENIC_UNICAST_PERFECT_FILTERS 32
#define ENIC_NON_TSO_MAX_DESC 16
#define ENIC_DEFAULT_RX_FREE_THRESH 32
#define ENIC_TX_XMIT_MAX 64
+#define ENIC_RX_BURST_MAX 64
-#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
+/* Defaults for dev_info.default_{rx,tx}portconf */
+#define ENIC_DEFAULT_RX_BURST 32
+#define ENIC_DEFAULT_RX_RINGS 1
+#define ENIC_DEFAULT_RX_RING_SIZE 512
+#define ENIC_DEFAULT_TX_BURST 32
+#define ENIC_DEFAULT_TX_RINGS 1
+#define ENIC_DEFAULT_TX_RING_SIZE 512
+#define ENIC_RSS_DEFAULT_CPU 0
+#define ENIC_RSS_BASE_CPU 0
+#define ENIC_RSS_HASH_BITS 7
+#define ENIC_RSS_RETA_SIZE (1 << ENIC_RSS_HASH_BITS)
+#define ENIC_RSS_HASH_KEY_SIZE 40
+
+#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
struct enic;
int enic_get_vnic_config(struct enic *);
-int enic_add_vlan(struct enic *enic, u16 vlanid);
-int enic_del_vlan(struct enic *enic, u16 vlanid);
-int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
- u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
- u8 ig_vlan_strip_en);
-int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
-int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
+int enic_set_nic_cfg(struct enic *enic, uint8_t rss_default_cpu,
+ uint8_t rss_hash_type, uint8_t rss_hash_bits,
+ uint8_t rss_base_cpu, uint8_t rss_enable,
+ uint8_t tso_ipid_split_en, uint8_t ig_vlan_strip_en);
+int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, uint64_t len);
+int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, uint64_t len);
void enic_get_res_counts(struct enic *enic);
void enic_init_vnic_resources(struct enic *enic);
int enic_alloc_vnic_resources(struct enic *);