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387d8239fb
MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
217 lines
10 KiB
C
217 lines
10 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 1997-2009 by Matthew Jacob
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _ISP_LIBRARY_H
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#define _ISP_LIBRARY_H
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/*
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* Common command shipping routine.
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*
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* This used to be platform specific, but basically once you get the segment
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* stuff figured out, you can make all the code in one spot.
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*/
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typedef enum { ISP_TO_DEVICE, ISP_FROM_DEVICE, ISP_NOXFR} isp_ddir_t;
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int isp_send_cmd(ispsoftc_t *, void *, void *, uint32_t, uint32_t, isp_ddir_t, ispds64_t *);
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/*
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* Handle management functions.
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*
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* These handles are associate with a command.
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*/
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int isp_allocate_xs(ispsoftc_t *, XS_T *, uint32_t *);
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XS_T * isp_find_xs(ispsoftc_t *, uint32_t);
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uint32_t isp_find_handle(ispsoftc_t *, XS_T *);
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uint32_t isp_handle_index(ispsoftc_t *, uint32_t);
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void isp_destroy_handle(ispsoftc_t *, uint32_t);
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/*
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* Request Queue allocation
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*/
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void *isp_getrqentry(ispsoftc_t *);
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/*
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* Queue Entry debug functions
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*/
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void isp_print_qentry (ispsoftc_t *, const char *, int, void *);
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void isp_print_bytes(ispsoftc_t *, const char *, int, void *);
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/*
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* Fibre Channel specific routines and data.
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*/
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extern const char *isp_class3_roles[4];
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int isp_fc_runstate(ispsoftc_t *, int, int);
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void isp_dump_portdb(ispsoftc_t *, int);
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void isp_gen_role_str(char *, size_t, uint16_t);
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const char *isp_fc_fw_statename(int);
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const char *isp_fc_loop_statename(int);
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const char *isp_fc_toponame(fcparam *);
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int isp_fc_change_role(ispsoftc_t *, int, int);
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/*
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* Cleanup
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*/
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void isp_clear_commands(ispsoftc_t *);
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/*
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* Common chip shutdown function
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*/
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void isp_shutdown(ispsoftc_t *);
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/*
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* Put/Get routines to push from CPU view to device view
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* or to pull from device view to CPU view for various
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* data structures (IOCB)
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*/
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void isp_put_hdr(ispsoftc_t *, isphdr_t *, isphdr_t *);
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void isp_get_hdr(ispsoftc_t *, isphdr_t *, isphdr_t *);
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int isp_get_response_type(ispsoftc_t *, isphdr_t *);
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void isp_put_request(ispsoftc_t *, ispreq_t *, ispreq_t *);
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void isp_put_marker(ispsoftc_t *, isp_marker_t *, isp_marker_t *);
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void isp_put_marker_24xx(ispsoftc_t *, isp_marker_24xx_t *, isp_marker_24xx_t *);
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void isp_put_request_t2(ispsoftc_t *, ispreqt2_t *, ispreqt2_t *);
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void isp_put_request_t2e(ispsoftc_t *, ispreqt2e_t *, ispreqt2e_t *);
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void isp_put_request_t3(ispsoftc_t *, ispreqt3_t *, ispreqt3_t *);
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void isp_put_request_t3e(ispsoftc_t *, ispreqt3e_t *, ispreqt3e_t *);
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void isp_put_extended_request(ispsoftc_t *, ispextreq_t *, ispextreq_t *);
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void isp_put_request_t7(ispsoftc_t *, ispreqt7_t *, ispreqt7_t *);
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void isp_put_24xx_tmf(ispsoftc_t *, isp24xx_tmf_t *, isp24xx_tmf_t *);
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void isp_put_24xx_abrt(ispsoftc_t *, isp24xx_abrt_t *, isp24xx_abrt_t *);
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void isp_put_cont_req(ispsoftc_t *, ispcontreq_t *, ispcontreq_t *);
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void isp_put_cont64_req(ispsoftc_t *, ispcontreq64_t *, ispcontreq64_t *);
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void isp_get_response(ispsoftc_t *, ispstatusreq_t *, ispstatusreq_t *);
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void isp_get_cont_response(ispsoftc_t *, ispstatus_cont_t *, ispstatus_cont_t *);
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void isp_get_24xx_response(ispsoftc_t *, isp24xx_statusreq_t *, isp24xx_statusreq_t *);
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void isp_get_24xx_abrt(ispsoftc_t *, isp24xx_abrt_t *, isp24xx_abrt_t *);
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void isp_get_rio1(ispsoftc_t *, isp_rio1_t *, isp_rio1_t *);
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void isp_get_rio2(ispsoftc_t *, isp_rio2_t *, isp_rio2_t *);
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void isp_put_icb(ispsoftc_t *, isp_icb_t *, isp_icb_t *);
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void isp_put_icb_2400(ispsoftc_t *, isp_icb_2400_t *, isp_icb_2400_t *);
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void isp_put_icb_2400_vpinfo(ispsoftc_t *, isp_icb_2400_vpinfo_t *, isp_icb_2400_vpinfo_t *);
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void isp_put_vp_port_info(ispsoftc_t *, vp_port_info_t *, vp_port_info_t *);
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void isp_get_vp_port_info(ispsoftc_t *, vp_port_info_t *, vp_port_info_t *);
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void isp_put_vp_ctrl_info(ispsoftc_t *, vp_ctrl_info_t *, vp_ctrl_info_t *);
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void isp_get_vp_ctrl_info(ispsoftc_t *, vp_ctrl_info_t *, vp_ctrl_info_t *);
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void isp_put_vp_modify(ispsoftc_t *, vp_modify_t *, vp_modify_t *);
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void isp_get_vp_modify(ispsoftc_t *, vp_modify_t *, vp_modify_t *);
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void isp_get_pdb_21xx(ispsoftc_t *, isp_pdb_21xx_t *, isp_pdb_21xx_t *);
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void isp_get_pdb_24xx(ispsoftc_t *, isp_pdb_24xx_t *, isp_pdb_24xx_t *);
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void isp_get_ridacq(ispsoftc_t *, isp_ridacq_t *, isp_ridacq_t *);
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void isp_get_plogx(ispsoftc_t *, isp_plogx_t *, isp_plogx_t *);
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void isp_put_plogx(ispsoftc_t *, isp_plogx_t *, isp_plogx_t *);
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void isp_get_ct_pt(ispsoftc_t *isp, isp_ct_pt_t *, isp_ct_pt_t *);
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void isp_get_ms(ispsoftc_t *isp, isp_ms_t *, isp_ms_t *);
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void isp_put_ct_pt(ispsoftc_t *isp, isp_ct_pt_t *, isp_ct_pt_t *);
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void isp_put_ms(ispsoftc_t *isp, isp_ms_t *, isp_ms_t *);
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void isp_put_sns_request(ispsoftc_t *, sns_screq_t *, sns_screq_t *);
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void isp_put_gid_ft_request(ispsoftc_t *, sns_gid_ft_req_t *, sns_gid_ft_req_t *);
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void isp_put_gxn_id_request(ispsoftc_t *, sns_gxn_id_req_t *, sns_gxn_id_req_t *);
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void isp_get_sns_response(ispsoftc_t *, sns_scrsp_t *, sns_scrsp_t *, int);
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void isp_get_gid_ft_response(ispsoftc_t *, sns_gid_ft_rsp_t *, sns_gid_ft_rsp_t *, int);
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void isp_get_gxn_id_response(ispsoftc_t *, sns_gxn_id_rsp_t *, sns_gxn_id_rsp_t *);
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void isp_get_gff_id_response(ispsoftc_t *, sns_gff_id_rsp_t *, sns_gff_id_rsp_t *);
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void isp_get_ga_nxt_response(ispsoftc_t *, sns_ga_nxt_rsp_t *, sns_ga_nxt_rsp_t *);
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void isp_get_els(ispsoftc_t *, els_t *, els_t *);
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void isp_put_els(ispsoftc_t *, els_t *, els_t *);
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void isp_get_fc_hdr(ispsoftc_t *, fc_hdr_t *, fc_hdr_t *);
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void isp_put_fc_hdr(ispsoftc_t *, fc_hdr_t *, fc_hdr_t *);
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void isp_get_fcp_cmnd_iu(ispsoftc_t *, fcp_cmnd_iu_t *, fcp_cmnd_iu_t *);
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void isp_put_rft_id(ispsoftc_t *, rft_id_t *, rft_id_t *);
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void isp_get_ct_hdr(ispsoftc_t *isp, ct_hdr_t *, ct_hdr_t *);
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void isp_put_ct_hdr(ispsoftc_t *isp, ct_hdr_t *, ct_hdr_t *);
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void isp_put_fcp_rsp_iu(ispsoftc_t *isp, fcp_rsp_iu_t *, fcp_rsp_iu_t *);
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#define ISP_HANDLE_MASK 0x7fff
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#ifdef ISP_TARGET_MODE
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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#include <dev/ic/isp_target.h>
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#elif defined(__FreeBSD__)
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#include <dev/isp/isp_target.h>
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#else
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#include "isp_target.h"
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#endif
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int isp_send_tgt_cmd(ispsoftc_t *, void *, void *, uint32_t, uint32_t, isp_ddir_t, void *, uint32_t);
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int isp_allocate_xs_tgt(ispsoftc_t *, void *, uint32_t *);
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void *isp_find_xs_tgt(ispsoftc_t *, uint32_t);
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uint32_t isp_find_tgt_handle(ispsoftc_t *, void *);
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void isp_destroy_tgt_handle(ispsoftc_t *, uint32_t);
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int isp_find_pdb_by_wwn(ispsoftc_t *, int, uint64_t, fcportdb_t **);
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int isp_find_pdb_by_loopid(ispsoftc_t *, int, uint32_t, fcportdb_t **);
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int isp_find_pdb_by_sid(ispsoftc_t *, int, uint32_t, fcportdb_t **);
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void isp_find_chan_by_did(ispsoftc_t *, uint32_t, uint16_t *);
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void isp_add_wwn_entry(ispsoftc_t *, int, uint64_t, uint16_t, uint32_t, uint16_t);
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void isp_del_wwn_entry(ispsoftc_t *, int, uint64_t, uint16_t, uint32_t);
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void isp_del_all_wwn_entries(ispsoftc_t *, int);
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void isp_del_wwn_entries(ispsoftc_t *, isp_notify_t *);
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void isp_put_atio(ispsoftc_t *, at_entry_t *, at_entry_t *);
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void isp_get_atio(ispsoftc_t *, at_entry_t *, at_entry_t *);
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void isp_put_atio2(ispsoftc_t *, at2_entry_t *, at2_entry_t *);
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void isp_put_atio2e(ispsoftc_t *, at2e_entry_t *, at2e_entry_t *);
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void isp_get_atio2(ispsoftc_t *, at2_entry_t *, at2_entry_t *);
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void isp_get_atio2e(ispsoftc_t *, at2e_entry_t *, at2e_entry_t *);
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void isp_get_atio7(ispsoftc_t *isp, at7_entry_t *, at7_entry_t *);
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void isp_put_ctio(ispsoftc_t *, ct_entry_t *, ct_entry_t *);
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void isp_get_ctio(ispsoftc_t *, ct_entry_t *, ct_entry_t *);
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void isp_put_ctio2(ispsoftc_t *, ct2_entry_t *, ct2_entry_t *);
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void isp_put_ctio2e(ispsoftc_t *, ct2e_entry_t *, ct2e_entry_t *);
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void isp_put_ctio7(ispsoftc_t *, ct7_entry_t *, ct7_entry_t *);
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void isp_get_ctio2(ispsoftc_t *, ct2_entry_t *, ct2_entry_t *);
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void isp_get_ctio2e(ispsoftc_t *, ct2e_entry_t *, ct2e_entry_t *);
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void isp_get_ctio7(ispsoftc_t *, ct7_entry_t *, ct7_entry_t *);
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void isp_put_enable_lun(ispsoftc_t *, lun_entry_t *, lun_entry_t *);
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void isp_get_enable_lun(ispsoftc_t *, lun_entry_t *, lun_entry_t *);
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void isp_put_notify(ispsoftc_t *, in_entry_t *, in_entry_t *);
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void isp_get_notify(ispsoftc_t *, in_entry_t *, in_entry_t *);
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void isp_put_notify_fc(ispsoftc_t *, in_fcentry_t *, in_fcentry_t *);
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void isp_put_notify_fc_e(ispsoftc_t *, in_fcentry_e_t *, in_fcentry_e_t *);
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void isp_put_notify_24xx(ispsoftc_t *, in_fcentry_24xx_t *, in_fcentry_24xx_t *);
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void isp_get_notify_fc(ispsoftc_t *, in_fcentry_t *, in_fcentry_t *);
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void isp_get_notify_fc_e(ispsoftc_t *, in_fcentry_e_t *, in_fcentry_e_t *);
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void isp_get_notify_24xx(ispsoftc_t *, in_fcentry_24xx_t *, in_fcentry_24xx_t *);
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void isp_put_notify_ack(ispsoftc_t *, na_entry_t *, na_entry_t *);
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void isp_get_notify_ack(ispsoftc_t *, na_entry_t *, na_entry_t *);
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void isp_put_notify_24xx_ack(ispsoftc_t *, na_fcentry_24xx_t *, na_fcentry_24xx_t *);
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void isp_put_notify_ack_fc(ispsoftc_t *, na_fcentry_t *, na_fcentry_t *);
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void isp_put_notify_ack_fc_e(ispsoftc_t *, na_fcentry_e_t *, na_fcentry_e_t *);
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void isp_put_notify_ack_24xx(ispsoftc_t *, na_fcentry_24xx_t *, na_fcentry_24xx_t *);
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void isp_get_notify_ack_fc(ispsoftc_t *, na_fcentry_t *, na_fcentry_t *);
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void isp_get_notify_ack_fc_e(ispsoftc_t *, na_fcentry_e_t *, na_fcentry_e_t *);
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void isp_get_notify_ack_24xx(ispsoftc_t *, na_fcentry_24xx_t *, na_fcentry_24xx_t *);
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void isp_get_abts(ispsoftc_t *, abts_t *, abts_t *);
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void isp_put_abts_rsp(ispsoftc_t *, abts_rsp_t *, abts_rsp_t *);
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void isp_get_abts_rsp(ispsoftc_t *, abts_rsp_t *, abts_rsp_t *);
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#endif /* ISP_TARGET_MODE */
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#endif /* _ISP_LIBRARY_H */
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