1 /*
2 * Copyright 2014 Cisco Systems, Inc. All rights reserved.
3 *
4 * This program is free software; you may redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
15 * SOFTWARE.
16 */
17
18 #ifndef __SNIC_RES_H
19 #define __SNIC_RES_H
20
21 #include "snic_io.h"
22 #include "wq_enet_desc.h"
23 #include "vnic_wq.h"
24 #include "snic_fwint.h"
25 #include "vnic_cq_fw.h"
26
27 static inline void
snic_icmnd_init(struct snic_host_req * req,u32 cmnd_id,u32 host_id,u64 ctx,u16 flags,u64 tgt_id,u8 * lun,u8 * scsi_cdb,u8 cdb_len,u32 data_len,u16 sg_cnt,ulong sgl_addr,dma_addr_t sns_addr_pa,u32 sense_len)28 snic_icmnd_init(struct snic_host_req *req, u32 cmnd_id, u32 host_id, u64 ctx,
29 u16 flags, u64 tgt_id, u8 *lun, u8 *scsi_cdb, u8 cdb_len,
30 u32 data_len, u16 sg_cnt, ulong sgl_addr,
31 dma_addr_t sns_addr_pa, u32 sense_len)
32 {
33 snic_io_hdr_enc(&req->hdr, SNIC_REQ_ICMND, 0, cmnd_id, host_id, sg_cnt,
34 ctx);
35
36 req->u.icmnd.flags = cpu_to_le16(flags);
37 req->u.icmnd.tgt_id = cpu_to_le64(tgt_id);
38 memcpy(&req->u.icmnd.lun_id, lun, LUN_ADDR_LEN);
39 req->u.icmnd.cdb_len = cdb_len;
40 memset(req->u.icmnd.cdb, 0, SNIC_CDB_LEN);
41 memcpy(req->u.icmnd.cdb, scsi_cdb, cdb_len);
42 req->u.icmnd.data_len = cpu_to_le32(data_len);
43 req->u.icmnd.sg_addr = cpu_to_le64(sgl_addr);
44 req->u.icmnd.sense_len = cpu_to_le32(sense_len);
45 req->u.icmnd.sense_addr = cpu_to_le64(sns_addr_pa);
46 }
47
48 static inline void
snic_itmf_init(struct snic_host_req * req,u32 cmnd_id,u32 host_id,ulong ctx,u16 flags,u32 req_id,u64 tgt_id,u8 * lun,u8 tm_type)49 snic_itmf_init(struct snic_host_req *req, u32 cmnd_id, u32 host_id, ulong ctx,
50 u16 flags, u32 req_id, u64 tgt_id, u8 *lun, u8 tm_type)
51 {
52 snic_io_hdr_enc(&req->hdr, SNIC_REQ_ITMF, 0, cmnd_id, host_id, 0, ctx);
53
54 req->u.itmf.tm_type = tm_type;
55 req->u.itmf.flags = cpu_to_le16(flags);
56 /* req_id valid only in abort, clear task */
57 req->u.itmf.req_id = cpu_to_le32(req_id);
58 req->u.itmf.tgt_id = cpu_to_le64(tgt_id);
59 memcpy(&req->u.itmf.lun_id, lun, LUN_ADDR_LEN);
60 }
61
62 static inline void
snic_queue_wq_eth_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 cq_entry)63 snic_queue_wq_eth_desc(struct vnic_wq *wq,
64 void *os_buf,
65 dma_addr_t dma_addr,
66 unsigned int len,
67 int vlan_tag_insert,
68 unsigned int vlan_tag,
69 int cq_entry)
70 {
71 struct wq_enet_desc *desc = svnic_wq_next_desc(wq);
72
73 wq_enet_desc_enc(desc,
74 (u64)dma_addr | VNIC_PADDR_TARGET,
75 (u16)len,
76 0, /* mss_or_csum_offset */
77 0, /* fc_eof */
78 0, /* offload mode */
79 1, /* eop */
80 (u8)cq_entry,
81 0, /* fcoe_encap */
82 (u8)vlan_tag_insert,
83 (u16)vlan_tag,
84 0 /* loopback */);
85
86 svnic_wq_post(wq, os_buf, dma_addr, len, 1, 1);
87 }
88
89 struct snic;
90
91 int snic_get_vnic_config(struct snic *);
92 int snic_alloc_vnic_res(struct snic *);
93 void snic_free_vnic_res(struct snic *);
94 void snic_get_res_counts(struct snic *);
95 void snic_log_q_error(struct snic *);
96 int snic_get_vnic_resources_size(struct snic *);
97 #endif /* __SNIC_RES_H */
98