drivers/scsi/snic/snic_res.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright 2014 Cisco Systems, Inc.  All rights reserved. */
   3
   4 #ifndef __SNIC_RES_H
   5 #define __SNIC_RES_H
   6
   7 #include "snic_io.h"
   8 #include "wq_enet_desc.h"
   9 #include "vnic_wq.h"
  10 #include "snic_fwint.h"
  11 #include "vnic_cq_fw.h"
  12
  13 static inline void
  14 snic_icmnd_init(struct snic_host_req *req, u32 cmnd_id, u32 host_id, u64 ctx,
  15                 u16 flags, u64 tgt_id, u8 *lun, u8 *scsi_cdb, u8 cdb_len,
  16                 u32 data_len, u16 sg_cnt, ulong sgl_addr,
  17                 dma_addr_t sns_addr_pa, u32 sense_len)
  18 {
  19         snic_io_hdr_enc(&req->hdr, SNIC_REQ_ICMND, 0, cmnd_id, host_id, sg_cnt,
  20                         ctx);
  21
  22         req->u.icmnd.flags = cpu_to_le16(flags);
  23         req->u.icmnd.tgt_id = cpu_to_le64(tgt_id);
  24         memcpy(&req->u.icmnd.lun_id, lun, LUN_ADDR_LEN);
  25         req->u.icmnd.cdb_len = cdb_len;
  26         memset(req->u.icmnd.cdb, 0, SNIC_CDB_LEN);
  27         memcpy(req->u.icmnd.cdb, scsi_cdb, cdb_len);
  28         req->u.icmnd.data_len = cpu_to_le32(data_len);
  29         req->u.icmnd.sg_addr = cpu_to_le64(sgl_addr);
  30         req->u.icmnd.sense_len = cpu_to_le32(sense_len);
  31         req->u.icmnd.sense_addr = cpu_to_le64(sns_addr_pa);
  32 }
  33
  34 static inline void
  35 snic_itmf_init(struct snic_host_req *req, u32 cmnd_id, u32 host_id, ulong ctx,
  36                u16 flags, u32 req_id, u64 tgt_id, u8 *lun, u8 tm_type)
  37 {
  38         snic_io_hdr_enc(&req->hdr, SNIC_REQ_ITMF, 0, cmnd_id, host_id, 0, ctx);
  39
  40         req->u.itmf.tm_type = tm_type;
  41         req->u.itmf.flags = cpu_to_le16(flags);
  42         /* req_id valid only in abort, clear task */
  43         req->u.itmf.req_id = cpu_to_le32(req_id);
  44         req->u.itmf.tgt_id = cpu_to_le64(tgt_id);
  45         memcpy(&req->u.itmf.lun_id, lun, LUN_ADDR_LEN);
  46 }
  47
  48 static inline void
  49 snic_queue_wq_eth_desc(struct vnic_wq *wq,
  50                        void *os_buf,
  51                        dma_addr_t dma_addr,
  52                        unsigned int len,
  53                        int vlan_tag_insert,
  54                        unsigned int vlan_tag,
  55                        int cq_entry)
  56 {
  57         struct wq_enet_desc *desc = svnic_wq_next_desc(wq);
  58
  59         wq_enet_desc_enc(desc,
  60                         (u64)dma_addr | VNIC_PADDR_TARGET,
  61                         (u16)len,
  62                         0, /* mss_or_csum_offset */
  63                         0, /* fc_eof */
  64                         0, /* offload mode */
  65                         1, /* eop */
  66                         (u8)cq_entry,
  67                         0, /* fcoe_encap */
  68                         (u8)vlan_tag_insert,
  69                         (u16)vlan_tag,
  70                         0 /* loopback */);
  71
  72         svnic_wq_post(wq, os_buf, dma_addr, len, 1, 1);
  73 }
  74
  75 struct snic;
  76
  77 int snic_get_vnic_config(struct snic *);
  78 int snic_alloc_vnic_res(struct snic *);
  79 void snic_free_vnic_res(struct snic *);
  80 void snic_get_res_counts(struct snic *);
  81 void snic_log_q_error(struct snic *);
  82 int snic_get_vnic_resources_size(struct snic *);
  83 #endif /* __SNIC_RES_H */