enic_res.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
  4 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
  5 */
  6
  7#ifndef _ENIC_RES_H_
  8#define _ENIC_RES_H_
  9
 10#include "wq_enet_desc.h"
 11#include "rq_enet_desc.h"
 12#include "vnic_wq.h"
 13#include "vnic_rq.h"
 14
 15#define ENIC_MIN_WQ_DESCS 64
 16#define ENIC_MAX_WQ_DESCS_DEFAULT 4096
 17#define ENIC_MAX_WQ_DESCS 16384
 18#define ENIC_MIN_RQ_DESCS 64
 19#define ENIC_MAX_RQ_DESCS 16384
 20#define ENIC_MAX_RQ_DESCS_DEFAULT 4096
 21#define ENIC_MAX_CQ_DESCS_DEFAULT (64 * 1024)
 22
 23#define ENIC_MIN_MTU			ETH_MIN_MTU
 24#define ENIC_MAX_MTU			9000
 25
 26#define ENIC_MULTICAST_PERFECT_FILTERS	32
 27#define ENIC_UNICAST_PERFECT_FILTERS	32
 28
 29#define ENIC_NON_TSO_MAX_DESC		16
 30
 31#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
 32
 33static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
 34	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 35	unsigned int mss_or_csum_offset, unsigned int hdr_len,
 36	int vlan_tag_insert, unsigned int vlan_tag,
 37	int offload_mode, int cq_entry, int sop, int eop, int loopback)
 38{
 39	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
 40	u8 desc_skip_cnt = 1;
 41	u8 compressed_send = 0;
 42	u64 wrid = 0;
 43
 44	wq_enet_desc_enc(desc,
 45		(u64)dma_addr | VNIC_PADDR_TARGET,
 46		(u16)len,
 47		(u16)mss_or_csum_offset,
 48		(u16)hdr_len, (u8)offload_mode,
 49		(u8)eop, (u8)cq_entry,
 50		0, /* fcoe_encap */
 51		(u8)vlan_tag_insert,
 52		(u16)vlan_tag,
 53		(u8)loopback);
 54
 55	vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
 56			(u8)cq_entry, compressed_send, wrid);
 57}
 58
 59static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
 60	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 61	int eop, int loopback)
 62{
 63	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 64		0, 0, 0, 0, 0,
 65		eop, 0 /* !SOP */, eop, loopback);
 66}
 67
 68static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
 69	dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
 70	unsigned int vlan_tag, int eop, int loopback)
 71{
 72	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 73		0, 0, vlan_tag_insert, vlan_tag,
 74		WQ_ENET_OFFLOAD_MODE_CSUM,
 75		eop, 1 /* SOP */, eop, loopback);
 76}
 77
 78static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
 79	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 80	int ip_csum, int tcpudp_csum, int vlan_tag_insert,
 81	unsigned int vlan_tag, int eop, int loopback)
 82{
 83	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 84		(ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
 85		0, vlan_tag_insert, vlan_tag,
 86		WQ_ENET_OFFLOAD_MODE_CSUM,
 87		eop, 1 /* SOP */, eop, loopback);
 88}
 89
 90static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
 91	void *os_buf, dma_addr_t dma_addr, unsigned int len,
 92	unsigned int csum_offset, unsigned int hdr_len,
 93	int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
 94{
 95	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
 96		csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
 97		WQ_ENET_OFFLOAD_MODE_CSUM_L4,
 98		eop, 1 /* SOP */, eop, loopback);
 99}
100
101static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
102	void *os_buf, dma_addr_t dma_addr, unsigned int len,
103	unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
104	unsigned int vlan_tag, int eop, int loopback)
105{
106	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
107		mss, hdr_len, vlan_tag_insert, vlan_tag,
108		WQ_ENET_OFFLOAD_MODE_TSO,
109		eop, 1 /* SOP */, eop, loopback);
110}
111
112static inline void enic_queue_rq_desc(struct vnic_rq *rq,
113	void *os_buf, unsigned int os_buf_index,
114	dma_addr_t dma_addr, unsigned int len)
115{
116	struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
117	u64 wrid = 0;
118	u8 type = os_buf_index ?
119		RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
120
121	rq_enet_desc_enc(desc,
122		(u64)dma_addr | VNIC_PADDR_TARGET,
123		type, (u16)len);
124
125	vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len, wrid);
126}
127
128struct enic;
129
130int enic_get_vnic_config(struct enic *);
131int enic_add_vlan(struct enic *enic, u16 vlanid);
132int enic_del_vlan(struct enic *enic, u16 vlanid);
133int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
134	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
135	u8 ig_vlan_strip_en);
136int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
137int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
138void enic_get_res_counts(struct enic *enic);
139void enic_init_vnic_resources(struct enic *enic);
140int enic_alloc_vnic_resources(struct enic *);
141void enic_free_vnic_resources(struct enic *);
142
143#endif /* _ENIC_RES_H_ */