drivers/scsi/fnic/fnic_res.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
   4  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   5  */
   6 #ifndef _FNIC_RES_H_
   7 #define _FNIC_RES_H_
   8
   9 #include "wq_enet_desc.h"
  10 #include "rq_enet_desc.h"
  11 #include "vnic_wq.h"
  12 #include "vnic_rq.h"
  13 #include "fnic_io.h"
  14 #include "fcpio.h"
  15 #include "vnic_wq_copy.h"
  16 #include "vnic_cq_copy.h"
  17
  18 static inline void fnic_queue_wq_desc(struct vnic_wq *wq,
  19                                       void *os_buf, dma_addr_t dma_addr,
  20                                       unsigned int len, unsigned int fc_eof,
  21                                       int vlan_tag_insert,
  22                                       unsigned int vlan_tag,
  23                                       int cq_entry, int sop, int eop)
  24 {
  25         struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
  26
  27         wq_enet_desc_enc(desc,
  28                          (u64)dma_addr | VNIC_PADDR_TARGET,
  29                          (u16)len,
  30                          0, /* mss_or_csum_offset */
  31                          (u16)fc_eof,
  32                          0, /* offload_mode */
  33                          (u8)eop, (u8)cq_entry,
  34                          1, /* fcoe_encap */
  35                          (u8)vlan_tag_insert,
  36                          (u16)vlan_tag,
  37                          0 /* loopback */);
  38
  39         vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
  40 }
  41
  42 static inline void fnic_queue_wq_eth_desc(struct vnic_wq *wq,
  43                                       void *os_buf, dma_addr_t dma_addr,
  44                                       unsigned int len,
  45                                       int vlan_tag_insert,
  46                                       unsigned int vlan_tag,
  47                                       int cq_entry)
  48 {
  49         struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
  50
  51         wq_enet_desc_enc(desc,
  52                          (u64)dma_addr | VNIC_PADDR_TARGET,
  53                          (u16)len,
  54                          0, /* mss_or_csum_offset */
  55                          0, /* fc_eof */
  56                          0, /* offload_mode */
  57                          1, /* eop */
  58                          (u8)cq_entry,
  59                          0, /* fcoe_encap */
  60                          (u8)vlan_tag_insert,
  61                          (u16)vlan_tag,
  62                          0 /* loopback */);
  63
  64         vnic_wq_post(wq, os_buf, dma_addr, len, 1, 1);
  65 }
  66
  67 static inline void fnic_queue_wq_copy_desc_icmnd_16(struct vnic_wq_copy *wq,
  68                                                     u32 req_id,
  69                                                     u32 lunmap_id, u8 spl_flags,
  70                                                     u32 sgl_cnt, u32 sense_len,
  71                                                     u64 sgl_addr, u64 sns_addr,
  72                                                     u8 crn, u8 pri_ta,
  73                                                     u8 flags, u8 *scsi_cdb,
  74                                                     u8 cdb_len,
  75                                                     u32 data_len, u8 *lun,
  76                                                     u32 d_id, u16 mss,
  77                                                     u32 ratov, u32 edtov)
  78 {
  79         struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
  80
  81         desc->hdr.type = FCPIO_ICMND_16; /* enum fcpio_type */
  82         desc->hdr.status = 0;            /* header status entry */
  83         desc->hdr._resvd = 0;            /* reserved */
  84         desc->hdr.tag.u.req_id = req_id; /* id for this request */
  85
  86         desc->u.icmnd_16.lunmap_id = lunmap_id; /* index into lunmap table */
  87         desc->u.icmnd_16.special_req_flags = spl_flags; /* exch req flags */
  88         desc->u.icmnd_16._resvd0[0] = 0;        /* reserved */
  89         desc->u.icmnd_16._resvd0[1] = 0;        /* reserved */
  90         desc->u.icmnd_16._resvd0[2] = 0;        /* reserved */
  91         desc->u.icmnd_16.sgl_cnt = sgl_cnt;     /* scatter-gather list count */
  92         desc->u.icmnd_16.sense_len = sense_len; /* sense buffer length */
  93         desc->u.icmnd_16.sgl_addr = sgl_addr;   /* scatter-gather list addr */
  94         desc->u.icmnd_16.sense_addr = sns_addr; /* sense buffer address */
  95         desc->u.icmnd_16.crn = crn;             /* SCSI Command Reference No.*/
  96         desc->u.icmnd_16.pri_ta = pri_ta;       /* SCSI Pri & Task attribute */
  97         desc->u.icmnd_16._resvd1 = 0;           /* reserved: should be 0 */
  98         desc->u.icmnd_16.flags = flags;         /* command flags */
  99         memset(desc->u.icmnd_16.scsi_cdb, 0, CDB_16);
 100         memcpy(desc->u.icmnd_16.scsi_cdb, scsi_cdb, cdb_len);    /* SCSI CDB */
 101         desc->u.icmnd_16.data_len = data_len;   /* length of data expected */
 102         memcpy(desc->u.icmnd_16.lun, lun, LUN_ADDRESS);  /* LUN address */
 103         desc->u.icmnd_16._resvd2 = 0;           /* reserved */
 104         hton24(desc->u.icmnd_16.d_id, d_id);    /* FC vNIC only: Target D_ID */
 105         desc->u.icmnd_16.mss = mss;             /* FC vNIC only: max burst */
 106         desc->u.icmnd_16.r_a_tov = ratov; /*FC vNIC only: Res. Alloc Timeout */
 107         desc->u.icmnd_16.e_d_tov = edtov; /*FC vNIC only: Err Detect Timeout */
 108
 109         vnic_wq_copy_post(wq);
 110 }
 111
 112 static inline void fnic_queue_wq_copy_desc_itmf(struct vnic_wq_copy *wq,
 113                                                 u32 req_id, u32 lunmap_id,
 114                                                 u32 tm_req, u32 tm_id, u8 *lun,
 115                                                 u32 d_id, u32 r_a_tov,
 116                                                 u32 e_d_tov)
 117 {
 118         struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
 119
 120         desc->hdr.type = FCPIO_ITMF;     /* enum fcpio_type */
 121         desc->hdr.status = 0;            /* header status entry */
 122         desc->hdr._resvd = 0;            /* reserved */
 123         desc->hdr.tag.u.req_id = req_id; /* id for this request */
 124
 125         desc->u.itmf.lunmap_id = lunmap_id; /* index into lunmap table */
 126         desc->u.itmf.tm_req = tm_req;       /* SCSI Task Management request */
 127         desc->u.itmf.t_tag = tm_id;         /* tag of fcpio to be aborted */
 128         desc->u.itmf._resvd = 0;
 129         memcpy(desc->u.itmf.lun, lun, LUN_ADDRESS);  /* LUN address */
 130         desc->u.itmf._resvd1 = 0;
 131         hton24(desc->u.itmf.d_id, d_id);    /* FC vNIC only: Target D_ID */
 132         desc->u.itmf.r_a_tov = r_a_tov;     /* FC vNIC only: R_A_TOV in msec */
 133         desc->u.itmf.e_d_tov = e_d_tov;     /* FC vNIC only: E_D_TOV in msec */
 134
 135         vnic_wq_copy_post(wq);
 136 }
 137
 138 static inline void fnic_queue_wq_copy_desc_flogi_reg(struct vnic_wq_copy *wq,
 139                                                      u32 req_id, u8 format,
 140                                                      u32 s_id, u8 *gw_mac)
 141 {
 142         struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
 143
 144         desc->hdr.type = FCPIO_FLOGI_REG;     /* enum fcpio_type */
 145         desc->hdr.status = 0;                 /* header status entry */
 146         desc->hdr._resvd = 0;                 /* reserved */
 147         desc->hdr.tag.u.req_id = req_id;      /* id for this request */
 148
 149         desc->u.flogi_reg.format = format;
 150         desc->u.flogi_reg._resvd = 0;
 151         hton24(desc->u.flogi_reg.s_id, s_id);
 152         memcpy(desc->u.flogi_reg.gateway_mac, gw_mac, ETH_ALEN);
 153
 154         vnic_wq_copy_post(wq);
 155 }
 156
 157 static inline void fnic_queue_wq_copy_desc_fip_reg(struct vnic_wq_copy *wq,
 158                                                    u32 req_id, u32 s_id,
 159                                                    u8 *fcf_mac, u8 *ha_mac,
 160                                                    u32 r_a_tov, u32 e_d_tov)
 161 {
 162         struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
 163
 164         desc->hdr.type = FCPIO_FLOGI_FIP_REG; /* enum fcpio_type */
 165         desc->hdr.status = 0;                 /* header status entry */
 166         desc->hdr._resvd = 0;                 /* reserved */
 167         desc->hdr.tag.u.req_id = req_id;      /* id for this request */
 168
 169         desc->u.flogi_fip_reg._resvd0 = 0;
 170         hton24(desc->u.flogi_fip_reg.s_id, s_id);
 171         memcpy(desc->u.flogi_fip_reg.fcf_mac, fcf_mac, ETH_ALEN);
 172         desc->u.flogi_fip_reg._resvd1 = 0;
 173         desc->u.flogi_fip_reg.r_a_tov = r_a_tov;
 174         desc->u.flogi_fip_reg.e_d_tov = e_d_tov;
 175         memcpy(desc->u.flogi_fip_reg.ha_mac, ha_mac, ETH_ALEN);
 176         desc->u.flogi_fip_reg._resvd2 = 0;
 177
 178         vnic_wq_copy_post(wq);
 179 }
 180
 181 static inline void fnic_queue_wq_copy_desc_fw_reset(struct vnic_wq_copy *wq,
 182                                                     u32 req_id)
 183 {
 184         struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
 185
 186         desc->hdr.type = FCPIO_RESET;     /* enum fcpio_type */
 187         desc->hdr.status = 0;             /* header status entry */
 188         desc->hdr._resvd = 0;             /* reserved */
 189         desc->hdr.tag.u.req_id = req_id;  /* id for this request */
 190
 191         vnic_wq_copy_post(wq);
 192 }
 193
 194 static inline void fnic_queue_wq_copy_desc_lunmap(struct vnic_wq_copy *wq,
 195                                                   u32 req_id, u64 lunmap_addr,
 196                                                   u32 lunmap_len)
 197 {
 198         struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);
 199
 200         desc->hdr.type = FCPIO_LUNMAP_REQ;      /* enum fcpio_type */
 201         desc->hdr.status = 0;                   /* header status entry */
 202         desc->hdr._resvd = 0;                   /* reserved */
 203         desc->hdr.tag.u.req_id = req_id;        /* id for this request */
 204
 205         desc->u.lunmap_req.addr = lunmap_addr;  /* address of the buffer */
 206         desc->u.lunmap_req.len = lunmap_len;    /* len of the buffer */
 207
 208         vnic_wq_copy_post(wq);
 209 }
 210
 211 static inline void fnic_queue_rq_desc(struct vnic_rq *rq,
 212                                       void *os_buf, dma_addr_t dma_addr,
 213                                       u16 len)
 214 {
 215         struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
 216
 217         rq_enet_desc_enc(desc,
 218                 (u64)dma_addr | VNIC_PADDR_TARGET,
 219                 RQ_ENET_TYPE_ONLY_SOP,
 220                 (u16)len);
 221
 222         vnic_rq_post(rq, os_buf, 0, dma_addr, len);
 223 }
 224
 225
 226 struct fnic;
 227
 228 int fnic_get_vnic_config(struct fnic *);
 229 int fnic_alloc_vnic_resources(struct fnic *);
 230 void fnic_free_vnic_resources(struct fnic *);
 231 void fnic_get_res_counts(struct fnic *);
 232 int fnic_set_nic_config(struct fnic *fnic, u8 rss_default_cpu,
 233                         u8 rss_hash_type, u8 rss_hash_bits, u8 rss_base_cpu,
 234                         u8 rss_enable, u8 tso_ipid_split_en,
 235                         u8 ig_vlan_strip_en);
 236
 237 #endif /* _FNIC_RES_H_ */