cregit-Linux how code gets into the kernel

Release 4.11 drivers/scsi/snic/snic_res.h

/*
 * 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); }

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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); }

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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); }

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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 */

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