/* $NetBSD: icp.c,v 1.1 2002/04/22 21:05:21 ad Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1999, 2000 Niklas Hallqvist. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Niklas Hallqvist. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * from OpenBSD: gdt_common.c,v 1.12 2001/07/04 06:43:18 niklas Exp */ /* * This driver would not have written if it was not for the hardware donations * from both ICP-Vortex and Öko.neT. I want to thank them for their support. * * Re-worked for NetBSD by Andrew Doran. Test hardware kindly supplied by * Intel. */ #include __KERNEL_RCSID(0, "$NetBSD: icp.c,v 1.1 2002/04/22 21:05:21 ad Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int icp_async_event(struct icp_softc *, int); void icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic); void icp_chain(struct icp_softc *); int icp_print(void *, const char *); int icp_submatch(struct device *, struct cfdata *, void *); void icp_watchdog(void *); int icp_init(struct icp_softc *icp, const char *intrstr) { struct icp_attach_args icpa; struct icp_binfo binfo; struct icp_ccb *ic; u_int16_t cdev_cnt; int i, j, state, feat, nsegs, rv, noscsi, nocache; noscsi = 0; nocache = 0; if (intrstr != NULL) printf("%s: interrupting at %s\n", icp->icp_dv.dv_xname, intrstr); SIMPLEQ_INIT(&icp->icp_ccb_queue); SIMPLEQ_INIT(&icp->icp_ccb_freelist); callout_init(&icp->icp_wdog_callout); /* * Allocate a scratch area. */ if (bus_dmamap_create(icp->icp_dmat, ICP_SCRATCH_SIZE, 1, ICP_SCRATCH_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &icp->icp_scr_dmamap) != 0) { printf("%s: cannot create scratch dmamap\n", icp->icp_dv.dv_xname); return (1); } state++; if (bus_dmamem_alloc(icp->icp_dmat, ICP_SCRATCH_SIZE, PAGE_SIZE, 0, icp->icp_scr_seg, 1, &nsegs, BUS_DMA_NOWAIT) != 0) { printf("%s: cannot alloc scratch dmamem\n", icp->icp_dv.dv_xname); goto bail_out; } state++; if (bus_dmamem_map(icp->icp_dmat, icp->icp_scr_seg, nsegs, ICP_SCRATCH_SIZE, &icp->icp_scr, 0)) { printf("%s: cannot map scratch dmamem\n", icp->icp_dv.dv_xname); goto bail_out; } state++; if (bus_dmamap_load(icp->icp_dmat, icp->icp_scr_dmamap, icp->icp_scr, ICP_SCRATCH_SIZE, NULL, BUS_DMA_NOWAIT)) { printf("%s: cannot load scratch dmamap\n", icp->icp_dv.dv_xname); goto bail_out; } state++; /* * Allocate and initialize the command control blocks. */ ic = malloc(sizeof(*ic) * ICP_NCCBS, M_DEVBUF, M_NOWAIT | M_ZERO); if ((icp->icp_ccbs = ic) == NULL) { printf("%s: malloc() failed\n", icp->icp_dv.dv_xname); goto bail_out; } state++; for (i = 0; i < ICP_NCCBS; i++, ic++) { /* * The first two command indexes have special meanings, so * we can't use them. */ ic->ic_ident = i + 2; rv = bus_dmamap_create(icp->icp_dmat, ICP_MAX_XFER, ICP_MAXSG, ICP_MAX_XFER, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ic->ic_xfer_map); if (rv != 0) break; icp->icp_nccbs++; icp_ccb_free(icp, ic); } #ifdef DIAGNOSTIC if (icp->icp_nccbs != ICP_NCCBS) printf("%s: %d/%d CCBs usable\n", icp->icp_dv.dv_xname, icp->icp_nccbs, ICP_NCCBS); #endif /* * Initalize the controller. */ if (!icp_cmd(icp, ICP_SCREENSERVICE, ICP_INIT, 0, 0, 0)) { printf("%s: screen service init error %d\n", icp->icp_dv.dv_xname, icp->icp_status); goto bail_out; } if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { printf("%s: cache service init error %d\n", icp->icp_dv.dv_xname, icp->icp_status); goto bail_out; } icp_cmd(icp, ICP_CACHESERVICE, ICP_UNFREEZE_IO, 0, 0, 0); if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_MOUNT, 0xffff, 1, 0)) { printf("%s: cache service mount error %d\n", icp->icp_dv.dv_xname, icp->icp_status); goto bail_out; } if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { printf("%s: cache service post-mount init error %d\n", icp->icp_dv.dv_xname, icp->icp_status); goto bail_out; } cdev_cnt = (u_int16_t)icp->icp_info; if (!icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_INIT, 0, 0, 0)) { printf("%s: raw service init error %d\n", icp->icp_dv.dv_xname, icp->icp_status); goto bail_out; } /* * Set/get raw service features (scatter/gather). */ feat = 0; if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_SET_FEAT, ICP_SCATTER_GATHER, 0, 0)) if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_GET_FEAT, 0, 0, 0)) feat = icp->icp_info; if ((feat & ICP_SCATTER_GATHER) == 0) { #ifdef DIAGNOSTIC printf("%s: scatter/gather not supported (raw service)\n", icp->icp_dv.dv_xname); #endif noscsi = 1; } /* * Set/get cache service features (scatter/gather). */ feat = 0; if (icp_cmd(icp, ICP_CACHESERVICE, ICP_SET_FEAT, 0, ICP_SCATTER_GATHER, 0)) if (icp_cmd(icp, ICP_CACHESERVICE, ICP_GET_FEAT, 0, 0, 0)) feat = icp->icp_info; if ((feat & ICP_SCATTER_GATHER) == 0) { #ifdef DIAGNOSTIC printf("%s: scatter/gather not supported (cache service)\n", icp->icp_dv.dv_xname); #endif nocache = 1; } /* * Pull some information from the board and dump. */ if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_BOARD_INFO, ICP_INVALID_CHANNEL, sizeof(struct icp_binfo))) { printf("%s: unable to retrive board info\n", icp->icp_dv.dv_xname); goto bail_out; } memcpy(&binfo, icp->icp_scr, sizeof(binfo)); printf("%s: model <%s>, firmware <%s>, %d channel(s), %dMB memory\n", icp->icp_dv.dv_xname, binfo.bi_type_string, binfo.bi_raid_string, binfo.bi_chan_count, le32toh(binfo.bi_memsize) >> 20); /* * Determine the number of devices, and number of openings per * device. */ if (!nocache) { for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INFO, j, 0, 0)) continue; icp->icp_cdr[j].cd_size = icp->icp_info; icp->icp_ndevs++; if (icp_cmd(icp, ICP_CACHESERVICE, ICP_DEVTYPE, j, 0, 0)) icp->icp_cdr[j].cd_type = icp->icp_info; } } if (!noscsi) icp->icp_ndevs += binfo.bi_chan_count; if (icp->icp_ndevs != 0) icp->icp_openings = (icp->icp_nccbs - ICP_NCCB_RESERVE) / icp->icp_ndevs; #ifdef ICP_DEBUG printf("%s: %d openings per device\n", icp->icp_dv.dv_xname, icp->icp_openings); #endif /* * Attach SCSI channels. */ if (!noscsi) { struct icp_ioc_version *iv; struct icp_rawioc *ri; struct icp_getch *gc; iv = (struct icp_ioc_version *)icp->icp_scr; iv->iv_version = htole32(ICP_IOC_NEWEST); iv->iv_listents = ICP_MAXBUS; iv->iv_firstchan = 0; iv->iv_lastchan = ICP_MAXBUS - 1; iv->iv_listoffset = htole32(sizeof(*iv)); if (icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_IOCHAN_RAW_DESC, ICP_INVALID_CHANNEL, sizeof(*iv) + ICP_MAXBUS * sizeof(*ri))) { ri = (struct icp_rawioc *)(iv + 1); for (j = 0; j < binfo.bi_chan_count; j++, ri++) icp->icp_bus_id[j] = ri->ri_procid; } else { /* * Fall back to the old method. */ gc = (struct icp_getch *)icp->icp_scr; for (i = 0; j < binfo.bi_chan_count; j++) { if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_SCSI_CHAN_CNT | ICP_L_CTRL_PATTERN, ICP_IO_CHANNEL | ICP_INVALID_CHANNEL, sizeof(*gc))) { printf("%s: unable to get chan info", icp->icp_dv.dv_xname); goto bail_out; } icp->icp_bus_id[j] = gc->gc_scsiid; } } for (j = 0; j < binfo.bi_chan_count; j++) { if (icp->icp_bus_id[j] > ICP_MAXID_FC) icp->icp_bus_id[j] = ICP_MAXID_FC; icpa.icpa_unit = j + ICPA_UNIT_SCSI; config_found_sm(&icp->icp_dv, &icpa, icp_print, icp_submatch); } } /* * Attach cache devices. */ if (!nocache) { for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { if (icp->icp_cdr[j].cd_size == 0) continue; icpa.icpa_unit = j; config_found_sm(&icp->icp_dv, &icpa, icp_print, icp_submatch); } } /* * Start the watchdog. */ icp_watchdog(icp); return (0); bail_out: if (state > 4) for (j = 0; j < i; j++) bus_dmamap_destroy(icp->icp_dmat, icp->icp_ccbs[j].ic_xfer_map); if (state > 3) free(icp->icp_ccbs, M_DEVBUF); if (state > 2) bus_dmamap_unload(icp->icp_dmat, icp->icp_scr_dmamap); if (state > 1) bus_dmamem_unmap(icp->icp_dmat, icp->icp_scr, ICP_SCRATCH_SIZE); if (state > 0) bus_dmamem_free(icp->icp_dmat, icp->icp_scr_seg, nsegs); bus_dmamap_destroy(icp->icp_dmat, icp->icp_scr_dmamap); return (1); } void icp_watchdog(void *cookie) { struct icp_softc *icp; int s; icp = cookie; s = splbio(); icp_intr(icp); if (SIMPLEQ_FIRST(&icp->icp_ccb_queue) != NULL) icp_ccb_enqueue(icp, NULL); splx(s); callout_reset(&icp->icp_wdog_callout, hz * ICP_WATCHDOG_FREQ, icp_watchdog, icp); } int icp_print(void *aux, const char *pnp) { struct icp_attach_args *icpa; const char *str; icpa = (struct icp_attach_args *)aux; if (pnp != NULL) { if (icpa->icpa_unit < ICPA_UNIT_SCSI) str = "block device"; else str = "SCSI channel"; printf("%s at %s", str, pnp); } printf(" unit %d", icpa->icpa_unit); return (UNCONF); } int icp_submatch(struct device *parent, struct cfdata *cf, void *aux) { struct icp_attach_args *icpa; icpa = (struct icp_attach_args *)aux; if (cf->icpacf_unit != ICPCF_UNIT_DEFAULT && cf->icpacf_unit != icpa->icpa_unit) return (0); return ((*cf->cf_attach->ca_match)(parent, cf, aux)); } int icp_async_event(struct icp_softc *icp, int val) { /* XXX */ return (1); } int icp_intr(void *cookie) { struct icp_softc *icp; struct icp_intr_ctx ctx; struct icp_ccb *ic; icp = cookie; ctx.istatus = (*icp->icp_get_status)(icp); if (!ctx.istatus) { icp->icp_status = ICP_S_NO_STATUS; return (0); } (*icp->icp_intr)(icp, &ctx); icp->icp_status = ctx.cmd_status; icp->icp_info = ctx.info; icp->icp_info2 = ctx.info2; switch (ctx.istatus) { case ICP_ASYNCINDEX: icp_async_event(icp, ctx.service); return (1); case ICP_SPEZINDEX: printf("%s: uninitialized or unknown service (%d/%d)\n", icp->icp_dv.dv_xname, ctx.info, ctx.info2); return (1); } if ((ctx.istatus - 2) > icp->icp_nccbs) panic("icp_intr: bad command index returned"); ic = &icp->icp_ccbs[ctx.istatus - 2]; ic->ic_status = icp->icp_status; if ((ic->ic_flags & IC_ALLOCED) == 0) panic("icp_intr: inactive CCB identified"); switch (icp->icp_status) { case ICP_S_BSY: #ifdef ICP_DEBUG printf("%s: ICP_S_BSY received\n", icp->icp_dv.dv_xname); #endif SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_queue, ic, ic_chain); break; default: ic->ic_flags |= IC_COMPLETE; if ((ic->ic_flags & IC_WAITING) != 0) wakeup(ic); else if (ic->ic_intr != NULL) (*ic->ic_intr)(ic); if (SIMPLEQ_FIRST(&icp->icp_ccb_queue) != NULL) icp_ccb_enqueue(icp, NULL); break; } return (1); } int icp_cmd(struct icp_softc *icp, u_int8_t service, u_int16_t opcode, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) { struct icp_ioctlcmd *icmd; struct icp_cachecmd *cc; struct icp_rawcmd *rc; int retries, rv; struct icp_ccb *ic; retries = ICP_RETRIES; do { ic = icp_ccb_alloc(icp); memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); ic->ic_cmd.cmd_opcode = htole16(opcode); switch (service) { case ICP_CACHESERVICE: if (opcode == ICP_IOCTL) { icmd = &ic->ic_cmd.cmd_packet.ic; icmd->ic_subfunc = htole16(arg1); icmd->ic_channel = htole32(arg2); icmd->ic_bufsize = htole32(arg3); icmd->ic_addr = htole32(icp->icp_scr_seg[0].ds_addr); bus_dmamap_sync(icp->icp_dmat, icp->icp_scr_dmamap, 0, arg3, BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); } else { cc = &ic->ic_cmd.cmd_packet.cc; cc->cc_deviceno = htole16(arg1); cc->cc_blockno = htole32(arg2); } break; case ICP_SCSIRAWSERVICE: rc = &ic->ic_cmd.cmd_packet.rc; rc->rc_direction = htole32(arg1); rc->rc_bus = arg2; rc->rc_target = arg3; rc->rc_lun = arg3 >> 8; break; } ic->ic_service = service; ic->ic_cmdlen = sizeof(ic->ic_cmd); rv = icp_ccb_poll(icp, ic, 10000); switch (service) { case ICP_CACHESERVICE: if (opcode == ICP_IOCTL) { bus_dmamap_sync(icp->icp_dmat, icp->icp_scr_dmamap, 0, arg3, BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); } break; } icp_ccb_free(icp, ic); } while (rv != 0 && --retries > 0); return (icp->icp_status == ICP_S_OK); } struct icp_ccb * icp_ccb_alloc(struct icp_softc *icp) { struct icp_ccb *ic; int s; s = splbio(); ic = SIMPLEQ_FIRST(&icp->icp_ccb_freelist); SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic, ic_chain); splx(s); ic->ic_flags = IC_ALLOCED; return (ic); } void icp_ccb_free(struct icp_softc *icp, struct icp_ccb *ic) { int s; s = splbio(); ic->ic_flags = 0; ic->ic_intr = NULL; SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_freelist, ic, ic_chain); splx(s); } void icp_ccb_enqueue(struct icp_softc *icp, struct icp_ccb *ic) { int s; s = splbio(); if (ic != NULL) SIMPLEQ_INSERT_TAIL(&icp->icp_ccb_queue, ic, ic_chain); while ((ic = SIMPLEQ_FIRST(&icp->icp_ccb_queue)) != NULL) { if ((*icp->icp_test_busy)(icp)) break; icp_ccb_submit(icp, ic); SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_queue, ic, ic_chain); } splx(s); } int icp_ccb_map(struct icp_softc *icp, struct icp_ccb *ic, void *data, int size, int dir) { struct icp_sg *sg; int nsegs, i, rv; bus_dmamap_t xfer; xfer = ic->ic_xfer_map; rv = bus_dmamap_load(icp->icp_dmat, xfer, data, size, NULL, BUS_DMA_NOWAIT | BUS_DMA_STREAMING | ((dir & IC_XFER_IN) ? BUS_DMA_READ : BUS_DMA_WRITE)); if (rv != 0) return (rv); nsegs = xfer->dm_nsegs; ic->ic_xfer_size = size; ic->ic_nsgent = nsegs; ic->ic_flags |= dir; sg = ic->ic_sg; if (sg != NULL) { for (i = 0; i < nsegs; i++, sg++) { sg->sg_addr = htole32(xfer->dm_segs[i].ds_addr); sg->sg_len = htole32(xfer->dm_segs[i].ds_len); } } else if (nsegs > 1) panic("icp_ccb_map: no SG list specified, but nsegs > 1\n"); if ((dir & IC_XFER_OUT) != 0) i = BUS_DMASYNC_PREWRITE; else /* if ((dir & IC_XFER_IN) != 0) */ i = BUS_DMASYNC_PREREAD; bus_dmamap_sync(icp->icp_dmat, xfer, 0, ic->ic_xfer_size, i); return (0); } void icp_ccb_unmap(struct icp_softc *icp, struct icp_ccb *ic) { int i; if ((ic->ic_flags & IC_XFER_OUT) != 0) i = BUS_DMASYNC_POSTWRITE; else /* if ((ic->ic_flags & IC_XFER_IN) != 0) */ i = BUS_DMASYNC_POSTREAD; bus_dmamap_sync(icp->icp_dmat, ic->ic_xfer_map, 0, ic->ic_xfer_size, i); bus_dmamap_unload(icp->icp_dmat, ic->ic_xfer_map); } int icp_ccb_poll(struct icp_softc *icp, struct icp_ccb *ic, int timo) { int rv; for (timo = ICP_BUSY_WAIT_MS * 100; timo != 0; timo--) { if (!(*icp->icp_test_busy)(icp)) break; DELAY(10); } if (timo == 0) { printf("%s: submit: busy\n", icp->icp_dv.dv_xname); return (EAGAIN); } icp_ccb_submit(icp, ic); for (timo *= 10; timo != 0; timo--) { DELAY(100); icp_intr(icp); if ((ic->ic_flags & IC_COMPLETE) != 0) break; } if (timo != 0) { if (ic->ic_status != ICP_S_OK) { #ifdef ICP_DEBUG printf("%s: request failed; status=0x%04x\n", icp->icp_dv.dv_xname, ic->ic_status); #endif rv = EIO; } else rv = 0; } else { printf("%s: command timed out\n", icp->icp_dv.dv_xname); rv = EIO; } while ((*icp->icp_test_busy)(icp) != 0) DELAY(10); return (rv); } int icp_ccb_wait(struct icp_softc *icp, struct icp_ccb *ic, int timo) { int s, rv; ic->ic_flags |= IC_WAITING; s = splbio(); icp_ccb_enqueue(icp, ic); if ((rv = tsleep(ic, PRIBIO, "icpwccb", mstohz(timo))) != 0) { splx(s); return (rv); } splx(s); if (ic->ic_status != ICP_S_OK) { printf("%s: command failed; status=%x\n", icp->icp_dv.dv_xname, ic->ic_status); return (EIO); } return (0); } void icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic) { ic->ic_cmdlen = (ic->ic_cmdlen + 3) & ~3; (*icp->icp_set_sema0)(icp); DELAY(10); ic->ic_cmd.cmd_boardnode = htole32(ICP_LOCALBOARD); ic->ic_cmd.cmd_cmdindex = htole32(ic->ic_ident); (*icp->icp_copy_cmd)(icp, ic); (*icp->icp_release_event)(icp, ic); }