c8806b6c9e
Cisco has developed a new PCI HBA interface called sNIC, which stands for SCSI NIC. This is a new storage feature supported on specialized network adapter. The new PCI function provides a uniform host interface and abstracts backend storage. [jejb: fix up checkpatch errors] Signed-off-by: Narsimhulu Musini <nmusini@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
/*
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* Copyright 2014 Cisco Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __SNIC_RES_H
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#define __SNIC_RES_H
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#include "snic_io.h"
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#include "wq_enet_desc.h"
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#include "vnic_wq.h"
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#include "snic_fwint.h"
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#include "vnic_cq_fw.h"
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static inline void
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snic_icmnd_init(struct snic_host_req *req, u32 cmnd_id, u32 host_id, u64 ctx,
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u16 flags, u64 tgt_id, u8 *lun, u8 *scsi_cdb, u8 cdb_len,
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u32 data_len, u16 sg_cnt, ulong sgl_addr,
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dma_addr_t sns_addr_pa, u32 sense_len)
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{
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snic_io_hdr_enc(&req->hdr, SNIC_REQ_ICMND, 0, cmnd_id, host_id, sg_cnt,
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ctx);
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req->u.icmnd.flags = cpu_to_le16(flags);
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req->u.icmnd.tgt_id = cpu_to_le64(tgt_id);
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memcpy(&req->u.icmnd.lun_id, lun, LUN_ADDR_LEN);
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req->u.icmnd.cdb_len = cdb_len;
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memset(req->u.icmnd.cdb, 0, SNIC_CDB_LEN);
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memcpy(req->u.icmnd.cdb, scsi_cdb, cdb_len);
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req->u.icmnd.data_len = cpu_to_le32(data_len);
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req->u.icmnd.sg_addr = cpu_to_le64(sgl_addr);
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req->u.icmnd.sense_len = cpu_to_le32(sense_len);
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req->u.icmnd.sense_addr = cpu_to_le64(sns_addr_pa);
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}
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static inline void
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snic_itmf_init(struct snic_host_req *req, u32 cmnd_id, u32 host_id, ulong ctx,
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u16 flags, u32 req_id, u64 tgt_id, u8 *lun, u8 tm_type)
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{
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snic_io_hdr_enc(&req->hdr, SNIC_REQ_ITMF, 0, cmnd_id, host_id, 0, ctx);
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req->u.itmf.tm_type = tm_type;
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req->u.itmf.flags = cpu_to_le16(flags);
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/* req_id valid only in abort, clear task */
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req->u.itmf.req_id = cpu_to_le32(req_id);
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req->u.itmf.tgt_id = cpu_to_le64(tgt_id);
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memcpy(&req->u.itmf.lun_id, lun, LUN_ADDR_LEN);
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}
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static inline void
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snic_queue_wq_eth_desc(struct vnic_wq *wq,
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void *os_buf,
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dma_addr_t dma_addr,
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unsigned int len,
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int vlan_tag_insert,
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unsigned int vlan_tag,
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int cq_entry)
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{
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struct wq_enet_desc *desc = svnic_wq_next_desc(wq);
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wq_enet_desc_enc(desc,
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(u64)dma_addr | VNIC_PADDR_TARGET,
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(u16)len,
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0, /* mss_or_csum_offset */
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0, /* fc_eof */
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0, /* offload mode */
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1, /* eop */
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(u8)cq_entry,
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0, /* fcoe_encap */
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(u8)vlan_tag_insert,
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(u16)vlan_tag,
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0 /* loopback */);
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svnic_wq_post(wq, os_buf, dma_addr, len, 1, 1);
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}
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struct snic;
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int snic_get_vnic_config(struct snic *);
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int snic_alloc_vnic_res(struct snic *);
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void snic_free_vnic_res(struct snic *);
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void snic_get_res_counts(struct snic *);
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void snic_log_q_error(struct snic *);
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int snic_get_vnic_resources_size(struct snic *);
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#endif /* __SNIC_RES_H */
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