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/*
* Copyright 2008-2010 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_
#define _ENIC_RES_H_
#include "wq_enet_desc.h"
#include "rq_enet_desc.h"
#include "vnic_wq.h"
#include "vnic_rq.h"
#define ENIC_MIN_WQ_DESCS 64
#define ENIC_MAX_WQ_DESCS 4096
#define ENIC_MIN_RQ_DESCS 64
#define ENIC_MAX_RQ_DESCS 4096
#define ENIC_MIN_MTU 68
#define ENIC_MAX_MTU 9000
#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_POST_THRESH (ENIC_MIN_WQ_DESCS / 2)
#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
void *os_buf, dma_addr_t dma_addr, unsigned int len,
unsigned int mss_or_csum_offset, unsigned int hdr_len,
int vlan_tag_insert, unsigned int vlan_tag,
int offload_mode, int cq_entry, int sop, int eop, int loopback)
{
struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
u8 desc_skip_cnt = 1;
u8 compressed_send = 0;
u64 wrid = 0;
wq_enet_desc_enc(desc,
(u64)dma_addr | VNIC_PADDR_TARGET,
(u16)len,
(u16)mss_or_csum_offset,
(u16)hdr_len, (u8)offload_mode,
(u8)eop, (u8)cq_entry,
0, /* fcoe_encap */
(u8)vlan_tag_insert,
(u16)vlan_tag,
(u8)loopback);
vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
(u8)cq_entry, compressed_send, wrid);
}
static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
void *os_buf, dma_addr_t dma_addr, unsigned int len,
int eop, int loopback)
{
enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
0, 0, 0, 0, 0,
eop, 0 /* !SOP */, eop, loopback);
}
static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
unsigned int vlan_tag, int eop, int loopback)
{
enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
0, 0, vlan_tag_insert, vlan_tag,
WQ_ENET_OFFLOAD_MODE_CSUM,
eop, 1 /* SOP */, eop, loopback);
}
static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
void *os_buf, dma_addr_t dma_addr, unsigned int len,
int ip_csum, int tcpudp_csum, int vlan_tag_insert,
unsigned int vlan_tag, int eop, int loopback)
{
enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
(ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
0, vlan_tag_insert, vlan_tag,
WQ_ENET_OFFLOAD_MODE_CSUM,
eop, 1 /* SOP */, eop, loopback);
}
static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
void *os_buf, dma_addr_t dma_addr, unsigned int len,
unsigned int csum_offset, unsigned int hdr_len,
int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
{
enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
WQ_ENET_OFFLOAD_MODE_CSUM_L4,
eop, 1 /* SOP */, eop, loopback);
}
static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
void *os_buf, dma_addr_t dma_addr, unsigned int len,
unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
unsigned int vlan_tag, int eop, int loopback)
{
enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
mss, hdr_len, vlan_tag_insert, vlan_tag,
WQ_ENET_OFFLOAD_MODE_TSO,
eop, 1 /* SOP */, eop, loopback);
}
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);
void enic_get_res_counts(struct enic *enic);
void enic_init_vnic_resources(struct enic *enic);
int enic_alloc_vnic_resources(struct enic *);
void enic_free_vnic_resources(struct enic *);
#endif /* _ENIC_RES_H_ */
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