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kernel/linux-rt-4.4.41/drivers/scsi/snic/snic_res.h 3.03 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright 2014 Cisco Systems, Inc.  All rights reserved.
   *
   * This program is free software; you may redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; version 2 of the License.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  #ifndef __SNIC_RES_H
  #define __SNIC_RES_H
  
  #include "snic_io.h"
  #include "wq_enet_desc.h"
  #include "vnic_wq.h"
  #include "snic_fwint.h"
  #include "vnic_cq_fw.h"
  
  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)
  {
  	snic_io_hdr_enc(&req->hdr, SNIC_REQ_ICMND, 0, cmnd_id, host_id, sg_cnt,
  			ctx);
  
  	req->u.icmnd.flags = cpu_to_le16(flags);
  	req->u.icmnd.tgt_id = cpu_to_le64(tgt_id);
  	memcpy(&req->u.icmnd.lun_id, lun, LUN_ADDR_LEN);
  	req->u.icmnd.cdb_len = cdb_len;
  	memset(req->u.icmnd.cdb, 0, SNIC_CDB_LEN);
  	memcpy(req->u.icmnd.cdb, scsi_cdb, cdb_len);
  	req->u.icmnd.data_len = cpu_to_le32(data_len);
  	req->u.icmnd.sg_addr = cpu_to_le64(sgl_addr);
  	req->u.icmnd.sense_len = cpu_to_le32(sense_len);
  	req->u.icmnd.sense_addr = cpu_to_le64(sns_addr_pa);
  }
  
  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)
  {
  	snic_io_hdr_enc(&req->hdr, SNIC_REQ_ITMF, 0, cmnd_id, host_id, 0, ctx);
  
  	req->u.itmf.tm_type = tm_type;
  	req->u.itmf.flags = cpu_to_le16(flags);
  	/* req_id valid only in abort, clear task */
  	req->u.itmf.req_id = cpu_to_le32(req_id);
  	req->u.itmf.tgt_id = cpu_to_le64(tgt_id);
  	memcpy(&req->u.itmf.lun_id, lun, LUN_ADDR_LEN);
  }
  
  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)
  {
  	struct wq_enet_desc *desc = svnic_wq_next_desc(wq);
  
  	wq_enet_desc_enc(desc,
  			(u64)dma_addr | VNIC_PADDR_TARGET,
  			(u16)len,
  			0, /* mss_or_csum_offset */
  			0, /* fc_eof */
  			0, /* offload mode */
  			1, /* eop */
  			(u8)cq_entry,
  			0, /* fcoe_encap */
  			(u8)vlan_tag_insert,
  			(u16)vlan_tag,
  			0 /* loopback */);
  
  	svnic_wq_post(wq, os_buf, dma_addr, len, 1, 1);
  }
  
  struct snic;
  
  int snic_get_vnic_config(struct snic *);
  int snic_alloc_vnic_res(struct snic *);
  void snic_free_vnic_res(struct snic *);
  void snic_get_res_counts(struct snic *);
  void snic_log_q_error(struct snic *);
  int snic_get_vnic_resources_size(struct snic *);
  #endif /* __SNIC_RES_H */