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1/*
2 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
4 *
5 * This program is free software; you may redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
16 * SOFTWARE.
17 */
18#ifndef _FNIC_RES_H_
19#define _FNIC_RES_H_
20
21#include "wq_enet_desc.h"
22#include "rq_enet_desc.h"
23#include "vnic_wq.h"
24#include "vnic_rq.h"
25#include "fnic_io.h"
26#include "fcpio.h"
27#include "vnic_wq_copy.h"
28#include "vnic_cq_copy.h"
29
30static inline void fnic_queue_wq_desc(struct vnic_wq *wq,
31				      void *os_buf, dma_addr_t dma_addr,
32				      unsigned int len, unsigned int fc_eof,
33				      int vlan_tag_insert,
34				      unsigned int vlan_tag,
35				      int cq_entry, int sop, int eop)
36{
37	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
38
39	wq_enet_desc_enc(desc,
40			 (u64)dma_addr | VNIC_PADDR_TARGET,
41			 (u16)len,
42			 0, /* mss_or_csum_offset */
43			 (u16)fc_eof,
44			 0, /* offload_mode */
45			 (u8)eop, (u8)cq_entry,
46			 1, /* fcoe_encap */
47			 (u8)vlan_tag_insert,
48			 (u16)vlan_tag,
49			 0 /* loopback */);
50
51	vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
52}
53
54static inline void fnic_queue_wq_eth_desc(struct vnic_wq *wq,
55				      void *os_buf, dma_addr_t dma_addr,
56				      unsigned int len,
57				      int vlan_tag_insert,
58				      unsigned int vlan_tag,
59				      int cq_entry)
60{
61	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
62
63	wq_enet_desc_enc(desc,
64			 (u64)dma_addr | VNIC_PADDR_TARGET,
65			 (u16)len,
66			 0, /* mss_or_csum_offset */
67			 0, /* fc_eof */
68			 0, /* offload_mode */
69			 1, /* eop */
70			 (u8)cq_entry,
71			 0, /* fcoe_encap */
72			 (u8)vlan_tag_insert,
73			 (u16)vlan_tag,
74			 0 /* loopback */);
75
76	vnic_wq_post(wq, os_buf, dma_addr, len, 1, 1);
77}
78
79static inline void fnic_queue_wq_copy_desc_icmnd_16(struct vnic_wq_copy *wq,
80						    u32 req_id,
81						    u32 lunmap_id, u8 spl_flags,
82						    u32 sgl_cnt, u32 sense_len,
83						    u64 sgl_addr, u64 sns_addr,
84						    u8 crn, u8 pri_ta,
85						    u8 flags, u8 *scsi_cdb,
86						    u8 cdb_len,
87						    u32 data_len, u8 *lun,
88						    u32 d_id, u16 mss,
89						    u32 ratov, u32 edtov)
90{
91	struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
92
93	desc->hdr.type = FCPIO_ICMND_16; /* enum fcpio_type */
94	desc->hdr.status = 0;            /* header status entry */
95	desc->hdr._resvd = 0;            /* reserved */
96	desc->hdr.tag.u.req_id = req_id; /* id for this request */
97
98	desc->u.icmnd_16.lunmap_id = lunmap_id; /* index into lunmap table */
99	desc->u.icmnd_16.special_req_flags = spl_flags; /* exch req flags */
100	desc->u.icmnd_16._resvd0[0] = 0;        /* reserved */
101	desc->u.icmnd_16._resvd0[1] = 0;        /* reserved */
102	desc->u.icmnd_16._resvd0[2] = 0;        /* reserved */
103	desc->u.icmnd_16.sgl_cnt = sgl_cnt;     /* scatter-gather list count */
104	desc->u.icmnd_16.sense_len = sense_len; /* sense buffer length */
105	desc->u.icmnd_16.sgl_addr = sgl_addr;   /* scatter-gather list addr */
106	desc->u.icmnd_16.sense_addr = sns_addr; /* sense buffer address */
107	desc->u.icmnd_16.crn = crn;             /* SCSI Command Reference No.*/
108	desc->u.icmnd_16.pri_ta = pri_ta; 	/* SCSI Pri & Task attribute */
109	desc->u.icmnd_16._resvd1 = 0;           /* reserved: should be 0 */
110	desc->u.icmnd_16.flags = flags;         /* command flags */
111	memset(desc->u.icmnd_16.scsi_cdb, 0, CDB_16);
112	memcpy(desc->u.icmnd_16.scsi_cdb, scsi_cdb, cdb_len);    /* SCSI CDB */
113	desc->u.icmnd_16.data_len = data_len;   /* length of data expected */
114	memcpy(desc->u.icmnd_16.lun, lun, LUN_ADDRESS);  /* LUN address */
115	desc->u.icmnd_16._resvd2 = 0;          	/* reserved */
116	hton24(desc->u.icmnd_16.d_id, d_id);	/* FC vNIC only: Target D_ID */
117	desc->u.icmnd_16.mss = mss;            	/* FC vNIC only: max burst */
118	desc->u.icmnd_16.r_a_tov = ratov; /*FC vNIC only: Res. Alloc Timeout */
119	desc->u.icmnd_16.e_d_tov = edtov; /*FC vNIC only: Err Detect Timeout */
120
121	vnic_wq_copy_post(wq);
122}
123
124static inline void fnic_queue_wq_copy_desc_itmf(struct vnic_wq_copy *wq,
125						u32 req_id, u32 lunmap_id,
126						u32 tm_req, u32 tm_id, u8 *lun,
127						u32 d_id, u32 r_a_tov,
128						u32 e_d_tov)
129{
130	struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
131
132	desc->hdr.type = FCPIO_ITMF;     /* enum fcpio_type */
133	desc->hdr.status = 0;            /* header status entry */
134	desc->hdr._resvd = 0;            /* reserved */
135	desc->hdr.tag.u.req_id = req_id; /* id for this request */
136
137	desc->u.itmf.lunmap_id = lunmap_id; /* index into lunmap table */
138	desc->u.itmf.tm_req = tm_req;       /* SCSI Task Management request */
139	desc->u.itmf.t_tag = tm_id;         /* tag of fcpio to be aborted */
140	desc->u.itmf._resvd = 0;
141	memcpy(desc->u.itmf.lun, lun, LUN_ADDRESS);  /* LUN address */
142	desc->u.itmf._resvd1 = 0;
143	hton24(desc->u.itmf.d_id, d_id);    /* FC vNIC only: Target D_ID */
144	desc->u.itmf.r_a_tov = r_a_tov;     /* FC vNIC only: R_A_TOV in msec */
145	desc->u.itmf.e_d_tov = e_d_tov;     /* FC vNIC only: E_D_TOV in msec */
146
147	vnic_wq_copy_post(wq);
148}
149
150static inline void fnic_queue_wq_copy_desc_flogi_reg(struct vnic_wq_copy *wq,
151						     u32 req_id, u8 format,
152						     u32 s_id, u8 *gw_mac)
153{
154	struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
155
156	desc->hdr.type = FCPIO_FLOGI_REG;     /* enum fcpio_type */
157	desc->hdr.status = 0;                 /* header status entry */
158	desc->hdr._resvd = 0;                 /* reserved */
159	desc->hdr.tag.u.req_id = req_id;      /* id for this request */
160
161	desc->u.flogi_reg.format = format;
162	desc->u.flogi_reg._resvd = 0;
163	hton24(desc->u.flogi_reg.s_id, s_id);
164	memcpy(desc->u.flogi_reg.gateway_mac, gw_mac, ETH_ALEN);
165
166	vnic_wq_copy_post(wq);
167}
168
169static inline void fnic_queue_wq_copy_desc_fip_reg(struct vnic_wq_copy *wq,
170						   u32 req_id, u32 s_id,
171						   u8 *fcf_mac, u8 *ha_mac,
172						   u32 r_a_tov, u32 e_d_tov)
173{
174	struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
175
176	desc->hdr.type = FCPIO_FLOGI_FIP_REG; /* enum fcpio_type */
177	desc->hdr.status = 0;                 /* header status entry */
178	desc->hdr._resvd = 0;                 /* reserved */
179	desc->hdr.tag.u.req_id = req_id;      /* id for this request */
180
181	desc->u.flogi_fip_reg._resvd0 = 0;
182	hton24(desc->u.flogi_fip_reg.s_id, s_id);
183	memcpy(desc->u.flogi_fip_reg.fcf_mac, fcf_mac, ETH_ALEN);
184	desc->u.flogi_fip_reg._resvd1 = 0;
185	desc->u.flogi_fip_reg.r_a_tov = r_a_tov;
186	desc->u.flogi_fip_reg.e_d_tov = e_d_tov;
187	memcpy(desc->u.flogi_fip_reg.ha_mac, ha_mac, ETH_ALEN);
188	desc->u.flogi_fip_reg._resvd2 = 0;
189
190	vnic_wq_copy_post(wq);
191}
192
193static inline void fnic_queue_wq_copy_desc_fw_reset(struct vnic_wq_copy *wq,
194						    u32 req_id)
195{
196	struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
197
198	desc->hdr.type = FCPIO_RESET;     /* enum fcpio_type */
199	desc->hdr.status = 0;             /* header status entry */
200	desc->hdr._resvd = 0;             /* reserved */
201	desc->hdr.tag.u.req_id = req_id;  /* id for this request */
202
203	vnic_wq_copy_post(wq);
204}
205
206static inline void fnic_queue_wq_copy_desc_lunmap(struct vnic_wq_copy *wq,
207						  u32 req_id, u64 lunmap_addr,
208						  u32 lunmap_len)
209{
210	struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
211
212	desc->hdr.type = FCPIO_LUNMAP_REQ;	/* enum fcpio_type */
213	desc->hdr.status = 0;			/* header status entry */
214	desc->hdr._resvd = 0;			/* reserved */
215	desc->hdr.tag.u.req_id = req_id;	/* id for this request */
216
217	desc->u.lunmap_req.addr = lunmap_addr;	/* address of the buffer */
218	desc->u.lunmap_req.len = lunmap_len;	/* len of the buffer */
219
220	vnic_wq_copy_post(wq);
221}
222
223static inline void fnic_queue_rq_desc(struct vnic_rq *rq,
224				      void *os_buf, dma_addr_t dma_addr,
225				      u16 len)
226{
227	struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
228
229	rq_enet_desc_enc(desc,
230		(u64)dma_addr | VNIC_PADDR_TARGET,
231		RQ_ENET_TYPE_ONLY_SOP,
232		(u16)len);
233
234	vnic_rq_post(rq, os_buf, 0, dma_addr, len);
235}
236
237
238struct fnic;
239
240int fnic_get_vnic_config(struct fnic *);
241int fnic_alloc_vnic_resources(struct fnic *);
242void fnic_free_vnic_resources(struct fnic *);
243void fnic_get_res_counts(struct fnic *);
244int fnic_set_nic_config(struct fnic *fnic, u8 rss_default_cpu,
245			u8 rss_hash_type, u8 rss_hash_bits, u8 rss_base_cpu,
246			u8 rss_enable, u8 tso_ipid_split_en,
247			u8 ig_vlan_strip_en);
248
249#endif /* _FNIC_RES_H_ */
250