mfi_cam.c revision 235525
193383Smdodd/*- 293383Smdodd * Copyright 2007 Scott Long 321826Sjoerg * All rights reserved. 421826Sjoerg * 521826Sjoerg * Redistribution and use in source and binary forms, with or without 621826Sjoerg * modification, are permitted provided that the following conditions 721826Sjoerg * are met: 821826Sjoerg * 1. Redistributions of source code must retain the above copyright 921826Sjoerg * notice, this list of conditions and the following disclaimer. 1021826Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1121826Sjoerg * notice, this list of conditions and the following disclaimer in the 1221826Sjoerg * documentation and/or other materials provided with the distribution. 1393383Smdodd * 1421826Sjoerg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1521826Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1621826Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1721826Sjoerg * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1821826Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1921826Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2021826Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2121826Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2221826Sjoerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2321826Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2421826Sjoerg * SUCH DAMAGE. 2521826Sjoerg */ 2693383Smdodd 2721826Sjoerg#include <sys/cdefs.h> 2821826Sjoerg__FBSDID("$FreeBSD: stable/9/sys/dev/mfi/mfi_cam.c 235525 2012-05-16 22:19:22Z sbruno $"); 2921826Sjoerg 30119418Sobrien#include "opt_mfi.h" 31119418Sobrien 32119418Sobrien#include <sys/param.h> 3321826Sjoerg#include <sys/systm.h> 3421826Sjoerg#include <sys/kernel.h> 3521826Sjoerg#include <sys/malloc.h> 3693383Smdodd#include <sys/module.h> 3721826Sjoerg#include <sys/selinfo.h> 3821826Sjoerg#include <sys/bus.h> 3921826Sjoerg#include <sys/conf.h> 4021826Sjoerg#include <sys/eventhandler.h> 4121826Sjoerg#include <sys/rman.h> 4221826Sjoerg#include <sys/bus_dma.h> 4321826Sjoerg#include <sys/bio.h> 4421826Sjoerg#include <sys/ioccom.h> 4593383Smdodd#include <sys/uio.h> 4621826Sjoerg#include <sys/proc.h> 4721826Sjoerg#include <sys/signalvar.h> 4893383Smdodd#include <sys/sysctl.h> 4993383Smdodd 5093383Smdodd#include <cam/cam.h> 5193383Smdodd#include <cam/cam_ccb.h> 5221830Sjoerg#include <cam/cam_debug.h> 5321826Sjoerg#include <cam/cam_sim.h> 5421826Sjoerg#include <cam/cam_xpt_sim.h> 5521826Sjoerg#include <cam/scsi/scsi_all.h> 5621826Sjoerg#include <cam/scsi/scsi_message.h> 5721826Sjoerg 5821826Sjoerg#include <machine/md_var.h> 5921826Sjoerg#include <machine/bus.h> 6021826Sjoerg#include <machine/resource.h> 6121826Sjoerg 6221826Sjoerg#include <dev/mfi/mfireg.h> 6321826Sjoerg#include <dev/mfi/mfi_ioctl.h> 6421826Sjoerg#include <dev/mfi/mfivar.h> 6521826Sjoerg 66298955Spfgstruct mfip_softc { 6721826Sjoerg device_t dev; 6821826Sjoerg struct mfi_softc *mfi_sc; 6921826Sjoerg struct cam_devq *devq; 7021826Sjoerg struct cam_sim *sim; 7121826Sjoerg struct cam_path *path; 7221826Sjoerg}; 7321826Sjoerg 7421826Sjoergstatic int mfip_probe(device_t); 7521826Sjoergstatic int mfip_attach(device_t); 7621826Sjoergstatic int mfip_detach(device_t); 7721826Sjoergstatic void mfip_cam_action(struct cam_sim *, union ccb *); 7821826Sjoergstatic void mfip_cam_poll(struct cam_sim *); 7921826Sjoergstatic struct mfi_command * mfip_start(void *); 8021826Sjoergstatic void mfip_done(struct mfi_command *cm); 8121826Sjoerg 8221826Sjoergstatic devclass_t mfip_devclass; 8393383Smdoddstatic device_method_t mfip_methods[] = { 8421826Sjoerg DEVMETHOD(device_probe, mfip_probe), 8521826Sjoerg DEVMETHOD(device_attach, mfip_attach), 8621826Sjoerg DEVMETHOD(device_detach, mfip_detach), 8721826Sjoerg {0, 0} 8821826Sjoerg}; 8921826Sjoergstatic driver_t mfip_driver = { 9021826Sjoerg "mfip", 9121826Sjoerg mfip_methods, 9221826Sjoerg sizeof(struct mfip_softc) 9321826Sjoerg}; 9421826SjoergDRIVER_MODULE(mfip, mfi, mfip_driver, mfip_devclass, 0, 0); 9521826SjoergMODULE_DEPEND(mfip, cam, 1, 1, 1); 9621826SjoergMODULE_DEPEND(mfip, mfi, 1, 1, 1); 9721826Sjoerg 9821826Sjoerg#define ccb_mfip_ptr sim_priv.entries[0].ptr 9921826Sjoerg 10021826Sjoergstatic int 10121826Sjoergmfip_probe(device_t dev) 10221826Sjoerg{ 10321826Sjoerg 10421826Sjoerg device_set_desc(dev, "SCSI Passthrough Bus"); 10521826Sjoerg return (0); 10621826Sjoerg} 10721826Sjoerg 10821826Sjoergstatic int 10921826Sjoergmfip_attach(device_t dev) 11021826Sjoerg{ 11121826Sjoerg struct mfip_softc *sc; 11221826Sjoerg struct mfi_softc *mfisc; 11321826Sjoerg 11421826Sjoerg sc = device_get_softc(dev); 11521826Sjoerg if (sc == NULL) 11621826Sjoerg return (EINVAL); 11721826Sjoerg 11821826Sjoerg mfisc = device_get_softc(device_get_parent(dev)); 11921826Sjoerg sc->dev = dev; 12021826Sjoerg sc->mfi_sc = mfisc; 12121826Sjoerg mfisc->mfi_cam_start = mfip_start; 12221826Sjoerg 12321826Sjoerg if ((sc->devq = cam_simq_alloc(MFI_SCSI_MAX_CMDS)) == NULL) 12421826Sjoerg return (ENOMEM); 12521826Sjoerg 12621826Sjoerg sc->sim = cam_sim_alloc(mfip_cam_action, mfip_cam_poll, "mfi", sc, 12721826Sjoerg device_get_unit(dev), &mfisc->mfi_io_lock, 1, 12821826Sjoerg MFI_SCSI_MAX_CMDS, sc->devq); 12921826Sjoerg if (sc->sim == NULL) { 13021826Sjoerg cam_simq_free(sc->devq); 13121826Sjoerg device_printf(dev, "CAM SIM attach failed\n"); 13221826Sjoerg return (EINVAL); 13321826Sjoerg } 13421826Sjoerg 13521826Sjoerg mtx_lock(&mfisc->mfi_io_lock); 13621826Sjoerg if (xpt_bus_register(sc->sim, dev, 0) != 0) { 13721826Sjoerg device_printf(dev, "XPT bus registration failed\n"); 13821826Sjoerg cam_sim_free(sc->sim, FALSE); 13921826Sjoerg cam_simq_free(sc->devq); 14021826Sjoerg mtx_unlock(&mfisc->mfi_io_lock); 14121826Sjoerg return (EINVAL); 14221826Sjoerg } 14321826Sjoerg mtx_unlock(&mfisc->mfi_io_lock); 14421826Sjoerg 14521826Sjoerg return (0); 14621826Sjoerg} 14721826Sjoerg 14821826Sjoergstatic int 14921826Sjoergmfip_detach(device_t dev) 15021826Sjoerg{ 15121826Sjoerg struct mfip_softc *sc; 15221826Sjoerg 15321826Sjoerg sc = device_get_softc(dev); 15421826Sjoerg if (sc == NULL) 15521826Sjoerg return (EINVAL); 15621826Sjoerg 15721826Sjoerg if (sc->sim != NULL) { 15821826Sjoerg mtx_lock(&sc->mfi_sc->mfi_io_lock); 15921826Sjoerg xpt_bus_deregister(cam_sim_path(sc->sim)); 16021826Sjoerg cam_sim_free(sc->sim, FALSE); 16121826Sjoerg mtx_unlock(&sc->mfi_sc->mfi_io_lock); 16221826Sjoerg } 16321826Sjoerg 16421826Sjoerg if (sc->devq != NULL) 16521826Sjoerg cam_simq_free(sc->devq); 16621826Sjoerg 16721826Sjoerg return (0); 16821826Sjoerg} 16921826Sjoerg 17021826Sjoergstatic void 17121826Sjoergmfip_cam_action(struct cam_sim *sim, union ccb *ccb) 17221826Sjoerg{ 17321826Sjoerg struct mfip_softc *sc = cam_sim_softc(sim); 17421826Sjoerg struct mfi_softc *mfisc = sc->mfi_sc; 17521826Sjoerg 17621826Sjoerg mtx_assert(&mfisc->mfi_io_lock, MA_OWNED); 17721826Sjoerg 17821826Sjoerg switch (ccb->ccb_h.func_code) { 17921826Sjoerg case XPT_PATH_INQ: 18021826Sjoerg { 18121826Sjoerg struct ccb_pathinq *cpi = &ccb->cpi; 18221826Sjoerg 18321826Sjoerg cpi->version_num = 1; 18421826Sjoerg cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; 18521826Sjoerg cpi->target_sprt = 0; 18621826Sjoerg cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN; 18721826Sjoerg cpi->hba_eng_cnt = 0; 18821826Sjoerg cpi->max_target = MFI_SCSI_MAX_TARGETS; 18921826Sjoerg cpi->max_lun = MFI_SCSI_MAX_LUNS; 19021826Sjoerg cpi->initiator_id = MFI_SCSI_INITIATOR_ID; 19121826Sjoerg strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 19221826Sjoerg strncpy(cpi->hba_vid, "LSI", HBA_IDLEN); 19321826Sjoerg strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 19421826Sjoerg cpi->unit_number = cam_sim_unit(sim); 19521826Sjoerg cpi->bus_id = cam_sim_bus(sim); 19621826Sjoerg cpi->base_transfer_speed = 150000; 19721826Sjoerg cpi->transport = XPORT_SAS; 19821826Sjoerg cpi->transport_version = 0; 19921826Sjoerg cpi->protocol = PROTO_SCSI; 20021826Sjoerg cpi->protocol_version = SCSI_REV_2; 20121826Sjoerg cpi->ccb_h.status = CAM_REQ_CMP; 20221826Sjoerg break; 20321826Sjoerg } 20421826Sjoerg case XPT_RESET_BUS: 20521826Sjoerg ccb->ccb_h.status = CAM_REQ_CMP; 20621826Sjoerg break; 20721826Sjoerg case XPT_RESET_DEV: 20821826Sjoerg ccb->ccb_h.status = CAM_REQ_CMP; 20921826Sjoerg break; 21021826Sjoerg case XPT_GET_TRAN_SETTINGS: 21121826Sjoerg { 21221826Sjoerg struct ccb_trans_settings_sas *sas = 21321826Sjoerg &ccb->cts.xport_specific.sas; 21421826Sjoerg 21521826Sjoerg ccb->cts.protocol = PROTO_SCSI; 21621826Sjoerg ccb->cts.protocol_version = SCSI_REV_2; 21721826Sjoerg ccb->cts.transport = XPORT_SAS; 21821826Sjoerg ccb->cts.transport_version = 0; 21921826Sjoerg 22093383Smdodd sas->valid &= ~CTS_SAS_VALID_SPEED; 22193383Smdodd sas->bitrate = 150000; 22221826Sjoerg 22321826Sjoerg ccb->ccb_h.status = CAM_REQ_CMP; 22421826Sjoerg break; 22521826Sjoerg } 22621826Sjoerg case XPT_SET_TRAN_SETTINGS: 22721826Sjoerg ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 22821826Sjoerg break; 22921826Sjoerg case XPT_SCSI_IO: 23021826Sjoerg { 23121826Sjoerg struct ccb_hdr *ccbh = &ccb->ccb_h; 23221826Sjoerg struct ccb_scsiio *csio = &ccb->csio; 23321826Sjoerg 23421826Sjoerg ccbh->status = CAM_REQ_INPROG; 23521826Sjoerg if (csio->cdb_len > MFI_SCSI_MAX_CDB_LEN) { 23621826Sjoerg ccbh->status = CAM_REQ_INVALID; 23721826Sjoerg break; 23821826Sjoerg } 23921826Sjoerg if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 24021826Sjoerg if (ccbh->flags & CAM_DATA_PHYS) { 24121826Sjoerg ccbh->status = CAM_REQ_INVALID; 24221826Sjoerg break; 24321826Sjoerg } 24421826Sjoerg if (ccbh->flags & CAM_SCATTER_VALID) { 24521826Sjoerg ccbh->status = CAM_REQ_INVALID; 24621826Sjoerg break; 24721826Sjoerg } 24821826Sjoerg } 24921826Sjoerg 25021826Sjoerg ccbh->ccb_mfip_ptr = sc; 25121826Sjoerg TAILQ_INSERT_TAIL(&mfisc->mfi_cam_ccbq, ccbh, sim_links.tqe); 25221826Sjoerg mfi_startio(mfisc); 25321826Sjoerg return; 25421826Sjoerg } 25521826Sjoerg default: 25621826Sjoerg ccb->ccb_h.status = CAM_REQ_INVALID; 25721826Sjoerg break; 25821826Sjoerg } 25921826Sjoerg 26021826Sjoerg xpt_done(ccb); 26121826Sjoerg return; 26221826Sjoerg} 26321826Sjoerg 26421826Sjoergstatic struct mfi_command * 26593383Smdoddmfip_start(void *data) 26621826Sjoerg{ 26721826Sjoerg union ccb *ccb = data; 26821826Sjoerg struct ccb_hdr *ccbh = &ccb->ccb_h; 26921826Sjoerg struct ccb_scsiio *csio = &ccb->csio; 27021826Sjoerg struct mfip_softc *sc; 27121826Sjoerg struct mfi_pass_frame *pt; 27221826Sjoerg struct mfi_command *cm; 27393383Smdodd uint32_t context = 0; 27421826Sjoerg 27521826Sjoerg sc = ccbh->ccb_mfip_ptr; 27621826Sjoerg 27721826Sjoerg if ((cm = mfi_dequeue_free(sc->mfi_sc)) == NULL) 27821826Sjoerg return (NULL); 27921826Sjoerg 28021826Sjoerg /* Zero out the MFI frame */ 28121826Sjoerg context = cm->cm_frame->header.context; 28221826Sjoerg bzero(cm->cm_frame, sizeof(union mfi_frame)); 28321826Sjoerg cm->cm_frame->header.context = context; 28421826Sjoerg 28521826Sjoerg pt = &cm->cm_frame->pass; 28621826Sjoerg pt->header.cmd = MFI_CMD_PD_SCSI_IO; 28721826Sjoerg pt->header.cmd_status = 0; 28821826Sjoerg pt->header.scsi_status = 0; 28921826Sjoerg pt->header.target_id = ccbh->target_id; 29021826Sjoerg pt->header.lun_id = ccbh->target_lun; 29121826Sjoerg pt->header.flags = 0; 29221826Sjoerg pt->header.timeout = 0; 29321826Sjoerg pt->header.data_len = csio->dxfer_len; 29421826Sjoerg pt->header.sense_len = MFI_SENSE_LEN; 29521826Sjoerg pt->header.cdb_len = csio->cdb_len; 29621826Sjoerg pt->sense_addr_lo = (uint32_t)cm->cm_sense_busaddr; 29721826Sjoerg pt->sense_addr_hi = (uint32_t)((uint64_t)cm->cm_sense_busaddr >> 32); 29821826Sjoerg if (ccbh->flags & CAM_CDB_POINTER) 29921826Sjoerg bcopy(csio->cdb_io.cdb_ptr, &pt->cdb[0], csio->cdb_len); 30021826Sjoerg else 30121826Sjoerg bcopy(csio->cdb_io.cdb_bytes, &pt->cdb[0], csio->cdb_len); 30221826Sjoerg cm->cm_complete = mfip_done; 30321826Sjoerg cm->cm_private = ccb; 30421826Sjoerg cm->cm_sg = &pt->sgl; 30521826Sjoerg cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE; 30621826Sjoerg cm->cm_data = csio->data_ptr; 30721826Sjoerg cm->cm_len = csio->dxfer_len; 30821826Sjoerg switch (ccbh->flags & CAM_DIR_MASK) { 30921826Sjoerg case CAM_DIR_IN: 31021826Sjoerg cm->cm_flags = MFI_CMD_DATAIN; 31121826Sjoerg break; 31221826Sjoerg case CAM_DIR_OUT: 31321826Sjoerg cm->cm_flags = MFI_CMD_DATAOUT; 31421826Sjoerg break; 31521826Sjoerg case CAM_DIR_NONE: 31621826Sjoerg default: 31721826Sjoerg cm->cm_data = NULL; 31821826Sjoerg cm->cm_len = 0; 31921826Sjoerg cm->cm_flags = 0; 32021826Sjoerg break; 32121826Sjoerg } 32221826Sjoerg 32321826Sjoerg TAILQ_REMOVE(&sc->mfi_sc->mfi_cam_ccbq, ccbh, sim_links.tqe); 32421826Sjoerg return (cm); 32521826Sjoerg} 32621826Sjoerg 32721826Sjoergstatic void 32821826Sjoergmfip_done(struct mfi_command *cm) 32921826Sjoerg{ 33021826Sjoerg union ccb *ccb = cm->cm_private; 33121826Sjoerg struct ccb_hdr *ccbh = &ccb->ccb_h; 33221826Sjoerg struct ccb_scsiio *csio = &ccb->csio; 33321826Sjoerg struct mfip_softc *sc; 33421826Sjoerg struct mfi_pass_frame *pt; 33521826Sjoerg 33621826Sjoerg sc = ccbh->ccb_mfip_ptr; 33721826Sjoerg pt = &cm->cm_frame->pass; 33821826Sjoerg 33921826Sjoerg switch (pt->header.cmd_status) { 34021826Sjoerg case MFI_STAT_OK: 34121826Sjoerg { 34221826Sjoerg uint8_t command, device; 34321826Sjoerg 34421826Sjoerg ccbh->status = CAM_REQ_CMP; 34521826Sjoerg csio->scsi_status = pt->header.scsi_status; 34621826Sjoerg if (ccbh->flags & CAM_CDB_POINTER) 34721826Sjoerg command = csio->cdb_io.cdb_ptr[0]; 34821826Sjoerg else 34921826Sjoerg command = csio->cdb_io.cdb_bytes[0]; 35021826Sjoerg if (command == INQUIRY) { 35121826Sjoerg device = csio->data_ptr[0] & 0x1f; 35221826Sjoerg if ((device == T_DIRECT) || (device == T_PROCESSOR)) 35321826Sjoerg csio->data_ptr[0] = 35421826Sjoerg (csio->data_ptr[0] & 0xe0) | T_NODEVICE; 35521826Sjoerg } 35621826Sjoerg break; 35721826Sjoerg } 35821826Sjoerg case MFI_STAT_SCSI_DONE_WITH_ERROR: 35921826Sjoerg { 36021826Sjoerg int sense_len; 36121826Sjoerg 36221826Sjoerg ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 36321826Sjoerg csio->scsi_status = pt->header.scsi_status; 36421826Sjoerg if (pt->header.sense_len < csio->sense_len) 36521826Sjoerg csio->sense_resid = csio->sense_len - 36621826Sjoerg pt->header.sense_len; 36721826Sjoerg else 36821826Sjoerg csio->sense_resid = 0; 36921826Sjoerg sense_len = min(pt->header.sense_len, 37021826Sjoerg sizeof(struct scsi_sense_data)); 37121826Sjoerg bzero(&csio->sense_data, sizeof(struct scsi_sense_data)); 37221826Sjoerg bcopy(&cm->cm_sense->data[0], &csio->sense_data, sense_len); 37321826Sjoerg break; 37421826Sjoerg } 37521826Sjoerg case MFI_STAT_DEVICE_NOT_FOUND: 37621826Sjoerg ccbh->status = CAM_SEL_TIMEOUT; 37721826Sjoerg break; 37821826Sjoerg case MFI_STAT_SCSI_IO_FAILED: 37921826Sjoerg ccbh->status = CAM_REQ_CMP_ERR; 38021826Sjoerg csio->scsi_status = pt->header.scsi_status; 38121826Sjoerg break; 38221826Sjoerg default: 38321826Sjoerg ccbh->status = CAM_REQ_CMP_ERR; 38421826Sjoerg csio->scsi_status = pt->header.scsi_status; 38521826Sjoerg break; 38621826Sjoerg } 38721826Sjoerg 38821826Sjoerg mfi_release_command(cm); 38921826Sjoerg xpt_done(ccb); 39021826Sjoerg} 39121826Sjoerg 39221826Sjoergstatic void 39321826Sjoergmfip_cam_poll(struct cam_sim *sim) 39421826Sjoerg{ 39521826Sjoerg return; 39621826Sjoerg} 39721826Sjoerg 39821826Sjoerg