drivers/scsi/bfa/bfa_fcbuild.c

Source file repositories/reference/linux-study-clean/drivers/scsi/bfa/bfa_fcbuild.c

File Facts

System
Linux kernel
Corpus path
drivers/scsi/bfa/bfa_fcbuild.c
Extension
.c
Size
23025 bytes
Lines
867
Domain
Driver Families
Bucket
drivers/scsi
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014- QLogic Corporation.
 * All rights reserved
 * www.qlogic.com
 *
 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
 */
/*
 * fcbuild.c - FC link service frame building and parsing routines
 */

#include "bfad_drv.h"
#include "bfa_fcbuild.h"

/*
 * static build functions
 */
static void     fc_els_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
				 __be16 ox_id);
static void     fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
				 __be16 ox_id);
static struct fchs_s fc_els_req_tmpl;
static struct fchs_s fc_els_rsp_tmpl;
static struct fchs_s fc_bls_req_tmpl;
static struct fchs_s fc_bls_rsp_tmpl;
static struct fc_ba_acc_s ba_acc_tmpl;
static struct fc_logi_s plogi_tmpl;
static struct fc_prli_s prli_tmpl;
static struct fc_rrq_s rrq_tmpl;
static struct fchs_s fcp_fchs_tmpl;

void
fcbuild_init(void)
{
	/*
	 * fc_els_req_tmpl
	 */
	fc_els_req_tmpl.routing = FC_RTG_EXT_LINK;
	fc_els_req_tmpl.cat_info = FC_CAT_LD_REQUEST;
	fc_els_req_tmpl.type = FC_TYPE_ELS;
	fc_els_req_tmpl.f_ctl =
		bfa_hton3b(FCTL_SEQ_INI | FCTL_FS_EXCH | FCTL_END_SEQ |
			      FCTL_SI_XFER);
	fc_els_req_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * fc_els_rsp_tmpl
	 */
	fc_els_rsp_tmpl.routing = FC_RTG_EXT_LINK;
	fc_els_rsp_tmpl.cat_info = FC_CAT_LD_REPLY;
	fc_els_rsp_tmpl.type = FC_TYPE_ELS;
	fc_els_rsp_tmpl.f_ctl =
		bfa_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
			      FCTL_END_SEQ | FCTL_SI_XFER);
	fc_els_rsp_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * fc_bls_req_tmpl
	 */
	fc_bls_req_tmpl.routing = FC_RTG_BASIC_LINK;
	fc_bls_req_tmpl.type = FC_TYPE_BLS;
	fc_bls_req_tmpl.f_ctl = bfa_hton3b(FCTL_END_SEQ | FCTL_SI_XFER);
	fc_bls_req_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * fc_bls_rsp_tmpl
	 */
	fc_bls_rsp_tmpl.routing = FC_RTG_BASIC_LINK;
	fc_bls_rsp_tmpl.cat_info = FC_CAT_BA_ACC;
	fc_bls_rsp_tmpl.type = FC_TYPE_BLS;
	fc_bls_rsp_tmpl.f_ctl =
		bfa_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
			      FCTL_END_SEQ | FCTL_SI_XFER);
	fc_bls_rsp_tmpl.rx_id = FC_RXID_ANY;

	/*
	 * ba_acc_tmpl
	 */
	ba_acc_tmpl.seq_id_valid = 0;
	ba_acc_tmpl.low_seq_cnt = 0;
	ba_acc_tmpl.high_seq_cnt = 0xFFFF;

	/*
	 * plogi_tmpl
	 */
	plogi_tmpl.csp.verhi = FC_PH_VER_PH_3;
	plogi_tmpl.csp.verlo = FC_PH_VER_4_3;
	plogi_tmpl.csp.ciro = 0x1;

Annotation

Implementation Notes