diff options
Diffstat (limited to 'sys/dev/iir/iir.c')
| -rw-r--r-- | sys/dev/iir/iir.c | 2018 |
1 files changed, 2018 insertions, 0 deletions
diff --git a/sys/dev/iir/iir.c b/sys/dev/iir/iir.c new file mode 100644 index 0000000..4e07233 --- /dev/null +++ b/sys/dev/iir/iir.c @@ -0,0 +1,2018 @@ +/* $FreeBSD$ */ +/* + * Copyright (c) 2000-01 Intel Corporation + * 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, + * without modification, immediately at the beginning of the file. + * 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. 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 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 AUTHOR 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. + */ + +/* + * iir.c: SCSI dependant code for the Intel Integrated RAID Controller driver + * + * Written by: Achim Leubner <achim.leubner@intel.com> + * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com> + * + * credits: Niklas Hallqvist; OpenBSD driver for the ICP Controllers. + * Mike Smith; Some driver source code. + * FreeBSD.ORG; Great O/S to work on and for. + * + * TODO: + */ + +#ident "$Id: iir.c 1.2 2001/06/21 20:28:32 achim Exp $" + +#define _IIR_C_ + +/* #include "opt_iir.h" */ +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/eventhandler.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#include <sys/bus.h> + +#include <stddef.h> /* For offsetof */ + +#include <machine/bus_memio.h> +#include <machine/bus_pio.h> +#include <machine/bus.h> +#include <machine/clock.h> +#include <machine/stdarg.h> + +#include <cam/cam.h> +#include <cam/cam_ccb.h> +#include <cam/cam_sim.h> +#include <cam/cam_xpt_sim.h> +#include <cam/cam_debug.h> +#include <cam/scsi/scsi_all.h> +#include <cam/scsi/scsi_message.h> + +#include <vm/vm.h> +#include <vm/pmap.h> + +#include <dev/iir/iir.h> + +struct gdt_softc *gdt_wait_gdt; +int gdt_wait_index; + +#ifdef GDT_DEBUG +int gdt_debug = GDT_DEBUG; +#ifdef __SERIAL__ +#define MAX_SERBUF 160 +static void ser_init(void); +static void ser_puts(char *str); +static void ser_putc(int c); +static char strbuf[MAX_SERBUF+1]; +#ifdef __COM2__ +#define COM_BASE 0x2f8 +#else +#define COM_BASE 0x3f8 +#endif +static void ser_init() +{ + unsigned port=COM_BASE; + + outb(port+3, 0x80); + outb(port+1, 0); + /* 19200 Baud, if 9600: outb(12,port) */ + outb(port, 6); + outb(port+3, 3); + outb(port+1, 0); +} + +static void ser_puts(char *str) +{ + char *ptr; + + ser_init(); + for (ptr=str;*ptr;++ptr) + ser_putc((int)(*ptr)); +} + +static void ser_putc(int c) +{ + unsigned port=COM_BASE; + + while ((inb(port+5) & 0x20)==0); + outb(port, c); + if (c==0x0a) + { + while ((inb(port+5) & 0x20)==0); + outb(port, 0x0d); + } +} + +int ser_printf(const char *fmt, ...) +{ + va_list args; + int i; + + va_start(args,fmt); + i = vsprintf(strbuf,fmt,args); + ser_puts(strbuf); + va_end(args); + return i; +} +#endif +#endif + +/* The linked list of softc structures */ +struct gdt_softc_list gdt_softcs = TAILQ_HEAD_INITIALIZER(gdt_softcs); +/* controller cnt. */ +int gdt_cnt = 0; +/* event buffer */ +static gdt_evt_str ebuffer[GDT_MAX_EVENTS]; +static int elastidx, eoldidx; +/* statistics */ +gdt_statist_t gdt_stat; + +/* Definitions for our use of the SIM private CCB area */ +#define ccb_sim_ptr spriv_ptr0 +#define ccb_priority spriv_field1 + +static void iir_action(struct cam_sim *sim, union ccb *ccb); +static void iir_poll(struct cam_sim *sim); +static void iir_shutdown(void *arg, int howto); +static void iir_timeout(void *arg); +static void iir_watchdog(void *arg); + +static void gdt_eval_mapping(u_int32_t size, int *cyls, int *heads, + int *secs); +static int gdt_internal_cmd(struct gdt_softc *gdt, struct gdt_ccb *gccb, + u_int8_t service, u_int16_t opcode, + u_int32_t arg1, u_int32_t arg2, u_int32_t arg3); +static int gdt_wait(struct gdt_softc *gdt, struct gdt_ccb *ccb, + int timeout); + +static struct gdt_ccb *gdt_get_ccb(struct gdt_softc *gdt); +static u_int32_t gdt_ccb_vtop(struct gdt_softc *gdt, + struct gdt_ccb *gccb); + +static int gdt_sync_event(struct gdt_softc *gdt, int service, + u_int8_t index, struct gdt_ccb *gccb); +static int gdt_async_event(struct gdt_softc *gdt, int service); +static struct gdt_ccb *gdt_raw_cmd(struct gdt_softc *gdt, + union ccb *ccb, int *lock); +static struct gdt_ccb *gdt_cache_cmd(struct gdt_softc *gdt, + union ccb *ccb, int *lock); +static struct gdt_ccb *gdt_ioctl_cmd(struct gdt_softc *gdt, + gdt_ucmd_t *ucmd, int *lock); +static void gdt_internal_cache_cmd(struct gdt_softc *gdt,union ccb *ccb); + +static void gdtmapmem(void *arg, bus_dma_segment_t *dm_segs, + int nseg, int error); +static void gdtexecuteccb(void *arg, bus_dma_segment_t *dm_segs, + int nseg, int error); + +int +iir_init(struct gdt_softc *gdt) +{ + u_int16_t cdev_cnt; + int i, id, drv_cyls, drv_hds, drv_secs; + struct gdt_ccb *gccb; + + GDT_DPRINTF(GDT_D_DEBUG, ("iir_init()\n")); + + gdt->sc_state = GDT_POLLING; + gdt_clear_events(); + bzero(&gdt_stat, sizeof(gdt_statist_t)); + + SLIST_INIT(&gdt->sc_free_gccb); + SLIST_INIT(&gdt->sc_pending_gccb); + TAILQ_INIT(&gdt->sc_ccb_queue); + TAILQ_INIT(&gdt->sc_ucmd_queue); + TAILQ_INSERT_TAIL(&gdt_softcs, gdt, links); + + /* DMA tag for mapping buffers into device visible space. */ + if (bus_dma_tag_create(gdt->sc_parent_dmat, /*alignment*/1, /*boundary*/0, + /*lowaddr*/BUS_SPACE_MAXADDR, + /*highaddr*/BUS_SPACE_MAXADDR, + /*filter*/NULL, /*filterarg*/NULL, + /*maxsize*/MAXBSIZE, /*nsegments*/GDT_MAXSG, + /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, + /*flags*/BUS_DMA_ALLOCNOW, + &gdt->sc_buffer_dmat) != 0) { + printf("iir%d: bus_dma_tag_create(...,gdt->sc_buffer_dmat) failed\n", + gdt->sc_hanum); + return (1); + } + gdt->sc_init_level++; + + /* DMA tag for our ccb structures */ + if (bus_dma_tag_create(gdt->sc_parent_dmat, /*alignment*/1, /*boundary*/0, + /*lowaddr*/BUS_SPACE_MAXADDR, + /*highaddr*/BUS_SPACE_MAXADDR, + /*filter*/NULL, /*filterarg*/NULL, + GDT_MAXCMDS * sizeof(struct gdt_ccb), + /*nsegments*/1, + /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, + /*flags*/0, &gdt->sc_gccb_dmat) != 0) { + printf("iir%d: bus_dma_tag_create(...,gdt->sc_gccb_dmat) failed\n", + gdt->sc_hanum); + return (1); + } + gdt->sc_init_level++; + + /* Allocation for our ccbs */ + if (bus_dmamem_alloc(gdt->sc_gccb_dmat, (void **)&gdt->sc_gccbs, + BUS_DMA_NOWAIT, &gdt->sc_gccb_dmamap) != 0) { + printf("iir%d: bus_dmamem_alloc(...,&gdt->sc_gccbs,...) failed\n", + gdt->sc_hanum); + return (1); + } + gdt->sc_init_level++; + + /* And permanently map them */ + bus_dmamap_load(gdt->sc_gccb_dmat, gdt->sc_gccb_dmamap, + gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb), + gdtmapmem, &gdt->sc_gccb_busbase, /*flags*/0); + gdt->sc_init_level++; + + /* Clear them out. */ + bzero(gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb)); + + /* Initialize the ccbs */ + for (i = GDT_MAXCMDS-1; i >= 0; i--) { + gdt->sc_gccbs[i].gc_cmd_index = i + 2; + gdt->sc_gccbs[i].gc_flags = GDT_GCF_UNUSED; + gdt->sc_gccbs[i].gc_map_flag = FALSE; + if (bus_dmamap_create(gdt->sc_buffer_dmat, /*flags*/0, + &gdt->sc_gccbs[i].gc_dmamap) != 0) + return(1); + gdt->sc_gccbs[i].gc_map_flag = TRUE; + SLIST_INSERT_HEAD(&gdt->sc_free_gccb, &gdt->sc_gccbs[i], sle); + } + gdt->sc_init_level++; + + /* create the control device */ + gdt->sc_dev = gdt_make_dev(gdt->sc_hanum); + + /* allocate ccb for gdt_internal_cmd() */ + gccb = gdt_get_ccb(gdt); + if (gccb == NULL) { + printf("iir%d: No free command index found\n", + gdt->sc_hanum); + return (1); + } + + if (!gdt_internal_cmd(gdt, gccb, GDT_SCREENSERVICE, GDT_INIT, + 0, 0, 0)) { + printf("iir%d: Screen service initialization error %d\n", + gdt->sc_hanum, gdt->sc_status); + gdt_free_ccb(gdt, gccb); + return (1); + } + + if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INIT, + GDT_LINUX_OS, 0, 0)) { + printf("iir%d: Cache service initialization error %d\n", + gdt->sc_hanum, gdt->sc_status); + gdt_free_ccb(gdt, gccb); + return (1); + } + gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_UNFREEZE_IO, + 0, 0, 0); + + if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_MOUNT, + 0xffff, 1, 0)) { + printf("iir%d: Cache service mount error %d\n", + gdt->sc_hanum, gdt->sc_status); + gdt_free_ccb(gdt, gccb); + return (1); + } + + if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INIT, + GDT_LINUX_OS, 0, 0)) { + printf("iir%d: Cache service post-mount initialization error %d\n", + gdt->sc_hanum, gdt->sc_status); + gdt_free_ccb(gdt, gccb); + return (1); + } + cdev_cnt = (u_int16_t)gdt->sc_info; + gdt->sc_fw_vers = gdt->sc_service; + + /* Detect number of buses */ + gdt_enc32(gccb->gc_scratch + GDT_IOC_VERSION, GDT_IOC_NEWEST); + gccb->gc_scratch[GDT_IOC_LIST_ENTRIES] = GDT_MAXBUS; + gccb->gc_scratch[GDT_IOC_FIRST_CHAN] = 0; + gccb->gc_scratch[GDT_IOC_LAST_CHAN] = GDT_MAXBUS - 1; + gdt_enc32(gccb->gc_scratch + GDT_IOC_LIST_OFFSET, GDT_IOC_HDR_SZ); + if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL, + GDT_IOCHAN_RAW_DESC, GDT_INVALID_CHANNEL, + GDT_IOC_HDR_SZ + GDT_MAXBUS * GDT_RAWIOC_SZ)) { + gdt->sc_bus_cnt = gccb->gc_scratch[GDT_IOC_CHAN_COUNT]; + for (i = 0; i < gdt->sc_bus_cnt; i++) { + id = gccb->gc_scratch[GDT_IOC_HDR_SZ + + i * GDT_RAWIOC_SZ + GDT_RAWIOC_PROC_ID]; + gdt->sc_bus_id[i] = id < GDT_MAXID_FC ? id : 0xff; + } + } else { + /* New method failed, use fallback. */ + for (i = 0; i < GDT_MAXBUS; i++) { + gdt_enc32(gccb->gc_scratch + GDT_GETCH_CHANNEL_NO, i); + if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL, + GDT_SCSI_CHAN_CNT | GDT_L_CTRL_PATTERN, + GDT_IO_CHANNEL | GDT_INVALID_CHANNEL, + GDT_GETCH_SZ)) { + if (i == 0) { + printf("iir%d: Cannot get channel count, " + "error %d\n", gdt->sc_hanum, gdt->sc_status); + gdt_free_ccb(gdt, gccb); + return (1); + } + break; + } + gdt->sc_bus_id[i] = + (gccb->gc_scratch[GDT_GETCH_SIOP_ID] < GDT_MAXID_FC) ? + gccb->gc_scratch[GDT_GETCH_SIOP_ID] : 0xff; + } + gdt->sc_bus_cnt = i; + } + /* add one "virtual" channel for the host drives */ + gdt->sc_virt_bus = gdt->sc_bus_cnt; + gdt->sc_bus_cnt++; + + if (!gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_INIT, + 0, 0, 0)) { + printf("iir%d: Raw service initialization error %d\n", + gdt->sc_hanum, gdt->sc_status); + gdt_free_ccb(gdt, gccb); + return (1); + } + + /* Set/get features raw service (scatter/gather) */ + gdt->sc_raw_feat = 0; + if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_SET_FEAT, + GDT_SCATTER_GATHER, 0, 0)) { + if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_GET_FEAT, + 0, 0, 0)) { + gdt->sc_raw_feat = gdt->sc_info; + if (!(gdt->sc_info & GDT_SCATTER_GATHER)) { + panic("iir%d: Scatter/Gather Raw Service " + "required but not supported!\n", gdt->sc_hanum); + gdt_free_ccb(gdt, gccb); + return (1); + } + } + } + + /* Set/get features cache service (scatter/gather) */ + gdt->sc_cache_feat = 0; + if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_SET_FEAT, + 0, GDT_SCATTER_GATHER, 0)) { + if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_GET_FEAT, + 0, 0, 0)) { + gdt->sc_cache_feat = gdt->sc_info; + if (!(gdt->sc_info & GDT_SCATTER_GATHER)) { + panic("iir%d: Scatter/Gather Cache Service " + "required but not supported!\n", gdt->sc_hanum); + gdt_free_ccb(gdt, gccb); + return (1); + } + } + } + + /* Scan for cache devices */ + for (i = 0; i < cdev_cnt && i < GDT_MAX_HDRIVES; i++) { + if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INFO, + i, 0, 0)) { + gdt->sc_hdr[i].hd_present = 1; + gdt->sc_hdr[i].hd_size = gdt->sc_info; + + /* + * Evaluate mapping (sectors per head, heads per cyl) + */ + gdt->sc_hdr[i].hd_size &= ~GDT_SECS32; + if (gdt->sc_info2 == 0) + gdt_eval_mapping(gdt->sc_hdr[i].hd_size, + &drv_cyls, &drv_hds, &drv_secs); + else { + drv_hds = gdt->sc_info2 & 0xff; + drv_secs = (gdt->sc_info2 >> 8) & 0xff; + drv_cyls = gdt->sc_hdr[i].hd_size / drv_hds / + drv_secs; + } + gdt->sc_hdr[i].hd_heads = drv_hds; + gdt->sc_hdr[i].hd_secs = drv_secs; + /* Round the size */ + gdt->sc_hdr[i].hd_size = drv_cyls * drv_hds * drv_secs; + + if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, + GDT_DEVTYPE, i, 0, 0)) + gdt->sc_hdr[i].hd_devtype = gdt->sc_info; + } + } + + GDT_DPRINTF(GDT_D_INIT, ("dpmem %x %d-bus %d cache device%s\n", + gdt->sc_dpmembase, + gdt->sc_bus_cnt, cdev_cnt, + cdev_cnt == 1 ? "" : "s")); + gdt_free_ccb(gdt, gccb); + + gdt_cnt++; + return (0); +} + +void +iir_free(struct gdt_softc *gdt) +{ + int i; + + GDT_DPRINTF(GDT_D_INIT, ("iir_free()\n")); + + switch (gdt->sc_init_level) { + default: + gdt_destroy_dev(gdt->sc_dev); + case 5: + for (i = GDT_MAXCMDS-1; i >= 0; i--) + if (gdt->sc_gccbs[i].gc_map_flag) + bus_dmamap_destroy(gdt->sc_buffer_dmat, + gdt->sc_gccbs[i].gc_dmamap); + bus_dmamap_unload(gdt->sc_gccb_dmat, gdt->sc_gccb_dmamap); + case 4: + bus_dmamem_free(gdt->sc_gccb_dmat, gdt->sc_gccbs, gdt->sc_gccb_dmamap); + case 3: + bus_dma_tag_destroy(gdt->sc_gccb_dmat); + case 2: + bus_dma_tag_destroy(gdt->sc_buffer_dmat); + case 1: + bus_dma_tag_destroy(gdt->sc_parent_dmat); + case 0: + break; + } + TAILQ_REMOVE(&gdt_softcs, gdt, links); +} + +void +iir_attach(struct gdt_softc *gdt) +{ + struct cam_devq *devq; + int i; + + GDT_DPRINTF(GDT_D_INIT, ("iir_attach()\n")); + + /* + * Create the device queue for our SIM. + */ + devq = cam_simq_alloc(GDT_MAXCMDS); + if (devq == NULL) + return; + + for (i = 0; i < gdt->sc_bus_cnt; i++) { + /* + * Construct our SIM entry + */ + gdt->sims[i] = cam_sim_alloc(iir_action, iir_poll, "iir", + gdt, gdt->sc_hanum, /*untagged*/2, + /*tagged*/GDT_MAXCMDS, devq); + if (xpt_bus_register(gdt->sims[i], i) != CAM_SUCCESS) { + cam_sim_free(gdt->sims[i], /*free_devq*/i == 0); + break; + } + + if (xpt_create_path(&gdt->paths[i], /*periph*/NULL, + cam_sim_path(gdt->sims[i]), + CAM_TARGET_WILDCARD, + CAM_LUN_WILDCARD) != CAM_REQ_CMP) { + xpt_bus_deregister(cam_sim_path(gdt->sims[i])); + cam_sim_free(gdt->sims[i], /*free_devq*/i == 0); + break; + } + } + if (i > 0) + EVENTHANDLER_REGISTER(shutdown_final, iir_shutdown, + gdt, SHUTDOWN_PRI_DEFAULT); + /* iir_watchdog(gdt); */ + gdt->sc_state = GDT_NORMAL; +} + +static void +gdt_eval_mapping(u_int32_t size, int *cyls, int *heads, int *secs) +{ + *cyls = size / GDT_HEADS / GDT_SECS; + if (*cyls < GDT_MAXCYLS) { + *heads = GDT_HEADS; + *secs = GDT_SECS; + } else { + /* Too high for 64 * 32 */ + *cyls = size / GDT_MEDHEADS / GDT_MEDSECS; + if (*cyls < GDT_MAXCYLS) { + *heads = GDT_MEDHEADS; + *secs = GDT_MEDSECS; + } else { + /* Too high for 127 * 63 */ + *cyls = size / GDT_BIGHEADS / GDT_BIGSECS; + *heads = GDT_BIGHEADS; + *secs = GDT_BIGSECS; + } + } +} + +static int +gdt_wait(struct gdt_softc *gdt, struct gdt_ccb *gccb, + int timeout) +{ + int rv = 0; + + GDT_DPRINTF(GDT_D_INIT, + ("gdt_wait(%p, %p, %d)\n", gdt, gccb, timeout)); + + gdt->sc_state |= GDT_POLL_WAIT; + do { + iir_intr(gdt); + if (gdt == gdt_wait_gdt && + gccb->gc_cmd_index == gdt_wait_index) { + rv = 1; + break; + } + DELAY(1); + } while (--timeout); + gdt->sc_state &= ~GDT_POLL_WAIT; + + while (gdt->sc_test_busy(gdt)) + DELAY(1); /* XXX correct? */ + + return (rv); +} + +static int +gdt_internal_cmd(struct gdt_softc *gdt, struct gdt_ccb *gccb, + u_int8_t service, u_int16_t opcode, + u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) +{ + int retries; + + GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cmd(%p, %d, %d, %d, %d, %d)\n", + gdt, service, opcode, arg1, arg2, arg3)); + + bzero(gdt->sc_cmd, GDT_CMD_SZ); + + for (retries = GDT_RETRIES; ; ) { + gccb->gc_service = service; + gccb->gc_flags = GDT_GCF_INTERNAL; + + gdt->sc_set_sema0(gdt); + gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX, + gccb->gc_cmd_index); + gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, opcode); + + switch (service) { + case GDT_CACHESERVICE: + if (opcode == GDT_IOCTL) { + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + + GDT_IOCTL_SUBFUNC, arg1); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + + GDT_IOCTL_CHANNEL, arg2); + gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + + GDT_IOCTL_PARAM_SIZE, (u_int16_t)arg3); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM, + gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + } else { + gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + + GDT_CACHE_DEVICENO, (u_int16_t)arg1); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + + GDT_CACHE_BLOCKNO, arg2); + } + break; + + case GDT_SCSIRAWSERVICE: + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + + GDT_RAW_DIRECTION, arg1); + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] = + (u_int8_t)arg2; + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] = + (u_int8_t)arg3; + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] = + (u_int8_t)(arg3 >> 8); + } + + gdt->sc_cmd_len = GDT_CMD_SZ; + gdt->sc_cmd_off = 0; + gdt->sc_cmd_cnt = 0; + gdt->sc_copy_cmd(gdt, gccb); + gdt->sc_release_event(gdt); + DELAY(20); + if (!gdt_wait(gdt, gccb, GDT_POLL_TIMEOUT)) + return (0); + if (gdt->sc_status != GDT_S_BSY || --retries == 0) + break; + DELAY(1); + } + return (gdt->sc_status == GDT_S_OK); +} + +static struct gdt_ccb * +gdt_get_ccb(struct gdt_softc *gdt) +{ + struct gdt_ccb *gccb; + int lock; + + GDT_DPRINTF(GDT_D_QUEUE, ("gdt_get_ccb(%p)\n", gdt)); + + lock = splcam(); + gccb = SLIST_FIRST(&gdt->sc_free_gccb); + if (gccb != NULL) { + SLIST_REMOVE_HEAD(&gdt->sc_free_gccb, sle); + SLIST_INSERT_HEAD(&gdt->sc_pending_gccb, gccb, sle); + ++gdt_stat.cmd_index_act; + if (gdt_stat.cmd_index_act > gdt_stat.cmd_index_max) + gdt_stat.cmd_index_max = gdt_stat.cmd_index_act; + } + splx(lock); + return (gccb); +} + +void +gdt_free_ccb(struct gdt_softc *gdt, struct gdt_ccb *gccb) +{ + int lock; + + GDT_DPRINTF(GDT_D_QUEUE, ("gdt_free_ccb(%p, %p)\n", gdt, gccb)); + + lock = splcam(); + gccb->gc_flags = GDT_GCF_UNUSED; + SLIST_REMOVE(&gdt->sc_pending_gccb, gccb, gdt_ccb, sle); + SLIST_INSERT_HEAD(&gdt->sc_free_gccb, gccb, sle); + --gdt_stat.cmd_index_act; + splx(lock); + if (gdt->sc_state & GDT_SHUTDOWN) + wakeup(gccb); +} + +static u_int32_t +gdt_ccb_vtop(struct gdt_softc *gdt, struct gdt_ccb *gccb) +{ + return (gdt->sc_gccb_busbase + + (u_int32_t)((caddr_t)gccb - (caddr_t)gdt->sc_gccbs)); +} + +void +gdt_next(struct gdt_softc *gdt) +{ + int lock; + union ccb *ccb; + gdt_ucmd_t *ucmd; + struct cam_sim *sim; + int bus, target, lun; + int next_cmd; + + struct ccb_scsiio *csio; + struct ccb_hdr *ccbh; + struct gdt_ccb *gccb = NULL; + u_int8_t cmd; + + GDT_DPRINTF(GDT_D_QUEUE, ("gdt_next(%p)\n", gdt)); + + lock = splcam(); + if (gdt->sc_test_busy(gdt)) { + if (!(gdt->sc_state & GDT_POLLING)) { + splx(lock); + return; + } + while (gdt->sc_test_busy(gdt)) + DELAY(1); + } + + gdt->sc_cmd_cnt = gdt->sc_cmd_off = 0; + next_cmd = TRUE; + for (;;) { + /* I/Os in queue? controller ready? */ + if (!TAILQ_FIRST(&gdt->sc_ucmd_queue) && + !TAILQ_FIRST(&gdt->sc_ccb_queue)) + break; + + /* 1.: I/Os without ccb (IOCTLs) */ + ucmd = TAILQ_FIRST(&gdt->sc_ucmd_queue); + if (ucmd != NULL) { + TAILQ_REMOVE(&gdt->sc_ucmd_queue, ucmd, links); + if ((gccb = gdt_ioctl_cmd(gdt, ucmd, &lock)) == NULL) { + TAILQ_INSERT_HEAD(&gdt->sc_ucmd_queue, ucmd, links); + break; + } + break; + /* wenn mehrere Kdos. zulassen: if (!gdt_polling) continue; */ + } + + /* 2.: I/Os with ccb */ + ccb = (union ccb *)TAILQ_FIRST(&gdt->sc_ccb_queue); + /* ist dann immer != NULL, da oben getestet */ + sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr; + bus = cam_sim_bus(sim); + target = ccb->ccb_h.target_id; + lun = ccb->ccb_h.target_lun; + + TAILQ_REMOVE(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe); + --gdt_stat.req_queue_act; + /* ccb->ccb_h.func_code is XPT_SCSI_IO */ + GDT_DPRINTF(GDT_D_QUEUE, ("XPT_SCSI_IO flags 0x%x)\n", + ccb->ccb_h.flags)); + csio = &ccb->csio; + ccbh = &ccb->ccb_h; + cmd = csio->cdb_io.cdb_bytes[0]; + /* Max CDB length is 12 bytes */ + if (csio->cdb_len > 12) { + ccbh->status = CAM_REQ_INVALID; + --gdt_stat.io_count_act; + xpt_done(ccb); + } else if (bus != gdt->sc_virt_bus) { + /* raw service command */ + if ((gccb = gdt_raw_cmd(gdt, ccb, &lock)) == NULL) { + TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h, + sim_links.tqe); + ++gdt_stat.req_queue_act; + if (gdt_stat.req_queue_act > gdt_stat.req_queue_max) + gdt_stat.req_queue_max = gdt_stat.req_queue_act; + next_cmd = FALSE; + } + } else if (target >= GDT_MAX_HDRIVES || + !gdt->sc_hdr[target].hd_present || lun != 0) { + ccbh->status = CAM_SEL_TIMEOUT; + --gdt_stat.io_count_act; + xpt_done(ccb); + } else { + /* cache service command */ + if (cmd == READ_6 || cmd == WRITE_6 || + cmd == READ_10 || cmd == WRITE_10) { + if ((gccb = gdt_cache_cmd(gdt, ccb, &lock)) == NULL) { + TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h, + sim_links.tqe); + ++gdt_stat.req_queue_act; + if (gdt_stat.req_queue_act > gdt_stat.req_queue_max) + gdt_stat.req_queue_max = gdt_stat.req_queue_act; + next_cmd = FALSE; + } + } else { + splx(lock); + gdt_internal_cache_cmd(gdt, ccb); + lock = splcam(); + } + } + if ((gdt->sc_state & GDT_POLLING) || !next_cmd) + break; + } + if (gdt->sc_cmd_cnt > 0) + gdt->sc_release_event(gdt); + + splx(lock); + + if ((gdt->sc_state & GDT_POLLING) && gdt->sc_cmd_cnt > 0) { + gdt_wait(gdt, gccb, GDT_POLL_TIMEOUT); + } +} + +static struct gdt_ccb * +gdt_raw_cmd(struct gdt_softc *gdt, union ccb *ccb, int *lock) +{ + struct gdt_ccb *gccb; + struct cam_sim *sim; + + GDT_DPRINTF(GDT_D_CMD, ("gdt_raw_cmd(%p, %p)\n", gdt, ccb)); + + if (roundup(GDT_CMD_UNION + GDT_RAW_SZ, sizeof(u_int32_t)) + + gdt->sc_cmd_off + GDT_DPMEM_COMMAND_OFFSET > + gdt->sc_ic_all_size) { + GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_raw_cmd(): DPMEM overflow\n", + gdt->sc_hanum)); + return (NULL); + } + + bzero(gdt->sc_cmd, GDT_CMD_SZ); + + gccb = gdt_get_ccb(gdt); + if (gccb == NULL) { + GDT_DPRINTF(GDT_D_INVALID, ("iir%d: No free command index found\n", + gdt->sc_hanum)); + return (gccb); + } + sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr; + gccb->gc_ccb = ccb; + gccb->gc_service = GDT_SCSIRAWSERVICE; + gccb->gc_flags = GDT_GCF_SCSI; + + if (gdt->sc_cmd_cnt == 0) + gdt->sc_set_sema0(gdt); + splx(*lock); + gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX, + gccb->gc_cmd_index); + gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_WRITE); + + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION, + (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN ? + GDT_DATA_IN : GDT_DATA_OUT); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN, + ccb->csio.dxfer_len); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN, + ccb->csio.cdb_len); + bcopy(ccb->csio.cdb_io.cdb_bytes, gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CMD, + ccb->csio.cdb_len); + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] = + ccb->ccb_h.target_id; + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] = + ccb->ccb_h.target_lun; + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] = + cam_sim_bus(sim); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN, + sizeof(struct scsi_sense_data)); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA, + gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + + /* + * If we have any data to send with this command, + * map it into bus space. + */ + /* Only use S/G if there is a transfer */ + if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { + if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) { + if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) { + int s; + int error; + + /* vorher unlock von splcam() ??? */ + s = splsoftvm(); + error = + bus_dmamap_load(gdt->sc_buffer_dmat, + gccb->gc_dmamap, + ccb->csio.data_ptr, + ccb->csio.dxfer_len, + gdtexecuteccb, + gccb, /*flags*/0); + if (error == EINPROGRESS) { + xpt_freeze_simq(sim, 1); + gccb->gc_state |= CAM_RELEASE_SIMQ; + } + splx(s); + } else { + struct bus_dma_segment seg; + + /* Pointer to physical buffer */ + seg.ds_addr = + (bus_addr_t)ccb->csio.data_ptr; + seg.ds_len = ccb->csio.dxfer_len; + gdtexecuteccb(gccb, &seg, 1, 0); + } + } else { + struct bus_dma_segment *segs; + + if ((ccb->ccb_h.flags & CAM_DATA_PHYS) != 0) + panic("iir%d: iir_action - Physical " + "segment pointers unsupported", gdt->sc_hanum); + + if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS)==0) + panic("iir%d: iir_action - Virtual " + "segment addresses unsupported", gdt->sc_hanum); + + /* Just use the segments provided */ + segs = (struct bus_dma_segment *)ccb->csio.data_ptr; + gdtexecuteccb(gccb, segs, ccb->csio.sglist_cnt, 0); + } + } else { + gdtexecuteccb(gccb, NULL, 0, 0); + } + + *lock = splcam(); + return (gccb); +} + +static struct gdt_ccb * +gdt_cache_cmd(struct gdt_softc *gdt, union ccb *ccb, int *lock) +{ + struct gdt_ccb *gccb; + struct cam_sim *sim; + u_int8_t *cmdp; + u_int16_t opcode; + u_int32_t blockno, blockcnt; + + GDT_DPRINTF(GDT_D_CMD, ("gdt_cache_cmd(%p, %p)\n", gdt, ccb)); + + if (roundup(GDT_CMD_UNION + GDT_CACHE_SZ, sizeof(u_int32_t)) + + gdt->sc_cmd_off + GDT_DPMEM_COMMAND_OFFSET > + gdt->sc_ic_all_size) { + GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_cache_cmd(): DPMEM overflow\n", + gdt->sc_hanum)); + return (NULL); + } + + bzero(gdt->sc_cmd, GDT_CMD_SZ); + + gccb = gdt_get_ccb(gdt); + if (gccb == NULL) { + GDT_DPRINTF(GDT_D_DEBUG, ("iir%d: No free command index found\n", + gdt->sc_hanum)); + return (gccb); + } + sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr; + gccb->gc_ccb = ccb; + gccb->gc_service = GDT_CACHESERVICE; + gccb->gc_flags = GDT_GCF_SCSI; + + if (gdt->sc_cmd_cnt == 0) + gdt->sc_set_sema0(gdt); + splx(*lock); + gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX, + gccb->gc_cmd_index); + cmdp = ccb->csio.cdb_io.cdb_bytes; + opcode = (*cmdp == WRITE_6 || *cmdp == WRITE_10) ? GDT_WRITE : GDT_READ; + if ((gdt->sc_state & GDT_SHUTDOWN) && opcode == GDT_WRITE) + opcode = GDT_WRITE_THR; + gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, opcode); + + gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO, + ccb->ccb_h.target_id); + if (ccb->csio.cdb_len == 6) { + struct scsi_rw_6 *rw = (struct scsi_rw_6 *)cmdp; + blockno = scsi_3btoul(rw->addr) & ((SRW_TOPADDR<<16) | 0xffff); + blockcnt = rw->length ? rw->length : 0x100; + } else { + struct scsi_rw_10 *rw = (struct scsi_rw_10 *)cmdp; + blockno = scsi_4btoul(rw->addr); + blockcnt = scsi_2btoul(rw->length); + } + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO, + blockno); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT, + blockcnt); + + /* + * If we have any data to send with this command, + * map it into bus space. + */ + /* Only use S/G if there is a transfer */ + if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) { + if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) { + int s; + int error; + + /* vorher unlock von splcam() ??? */ + s = splsoftvm(); + error = + bus_dmamap_load(gdt->sc_buffer_dmat, + gccb->gc_dmamap, + ccb->csio.data_ptr, + ccb->csio.dxfer_len, + gdtexecuteccb, + gccb, /*flags*/0); + if (error == EINPROGRESS) { + xpt_freeze_simq(sim, 1); + gccb->gc_state |= CAM_RELEASE_SIMQ; + } + splx(s); + } else { + struct bus_dma_segment seg; + + /* Pointer to physical buffer */ + seg.ds_addr = + (bus_addr_t)ccb->csio.data_ptr; + seg.ds_len = ccb->csio.dxfer_len; + gdtexecuteccb(gccb, &seg, 1, 0); + } + } else { + struct bus_dma_segment *segs; + + if ((ccb->ccb_h.flags & CAM_DATA_PHYS) != 0) + panic("iir%d: iir_action - Physical " + "segment pointers unsupported", gdt->sc_hanum); + + if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS)==0) + panic("iir%d: iir_action - Virtual " + "segment addresses unsupported", gdt->sc_hanum); + + /* Just use the segments provided */ + segs = (struct bus_dma_segment *)ccb->csio.data_ptr; + gdtexecuteccb(gccb, segs, ccb->csio.sglist_cnt, 0); + } + + *lock = splcam(); + return (gccb); +} + +static struct gdt_ccb * +gdt_ioctl_cmd(struct gdt_softc *gdt, gdt_ucmd_t *ucmd, int *lock) +{ + struct gdt_ccb *gccb; + u_int32_t cnt; + + GDT_DPRINTF(GDT_D_DEBUG, ("gdt_ioctl_cmd(%p, %p)\n", gdt, ucmd)); + + bzero(gdt->sc_cmd, GDT_CMD_SZ); + + gccb = gdt_get_ccb(gdt); + if (gccb == NULL) { + GDT_DPRINTF(GDT_D_DEBUG, ("iir%d: No free command index found\n", + gdt->sc_hanum)); + return (gccb); + } + gccb->gc_ucmd = ucmd; + gccb->gc_service = ucmd->service; + gccb->gc_flags = GDT_GCF_IOCTL; + + /* check DPMEM space, copy data buffer from user space */ + if (ucmd->service == GDT_CACHESERVICE) { + if (ucmd->OpCode == GDT_IOCTL) { + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_IOCTL_SZ, + sizeof(u_int32_t)); + cnt = ucmd->u.ioctl.param_size; + if (cnt > GDT_SCRATCH_SZ) { + printf("iir%d: Scratch buffer too small (%d/%d)\n", + gdt->sc_hanum, GDT_SCRATCH_SZ, cnt); + gdt_free_ccb(gdt, gccb); + return (NULL); + } + } else { + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_CACHE_SG_LST + + GDT_SG_SZ, sizeof(u_int32_t)); + cnt = ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE; + if (cnt > GDT_SCRATCH_SZ) { + printf("iir%d: Scratch buffer too small (%d/%d)\n", + gdt->sc_hanum, GDT_SCRATCH_SZ, cnt); + gdt_free_ccb(gdt, gccb); + return (NULL); + } + } + } else { + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_RAW_SG_LST + + GDT_SG_SZ, sizeof(u_int32_t)); + cnt = ucmd->u.raw.sdlen; + if (cnt + ucmd->u.raw.sense_len > GDT_SCRATCH_SZ) { + printf("iir%d: Scratch buffer too small (%d/%d)\n", + gdt->sc_hanum, GDT_SCRATCH_SZ, cnt + ucmd->u.raw.sense_len); + gdt_free_ccb(gdt, gccb); + return (NULL); + } + } + if (cnt != 0) + bcopy(ucmd->data, gccb->gc_scratch, cnt); + + if (gdt->sc_cmd_off + gdt->sc_cmd_len + GDT_DPMEM_COMMAND_OFFSET > + gdt->sc_ic_all_size) { + GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_ioctl_cmd(): DPMEM overflow\n", + gdt->sc_hanum)); + gdt_free_ccb(gdt, gccb); + return (NULL); + } + + if (gdt->sc_cmd_cnt == 0) + gdt->sc_set_sema0(gdt); + splx(*lock); + + /* fill cmd structure */ + gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX, + gccb->gc_cmd_index); + gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, + ucmd->OpCode); + + if (ucmd->service == GDT_CACHESERVICE) { + if (ucmd->OpCode == GDT_IOCTL) { + /* IOCTL */ + gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_PARAM_SIZE, + ucmd->u.ioctl.param_size); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_SUBFUNC, + ucmd->u.ioctl.subfunc); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_CHANNEL, + ucmd->u.ioctl.channel); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM, + gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + } else { + /* cache service command */ + gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO, + ucmd->u.cache.DeviceNo); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO, + ucmd->u.cache.BlockNo); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT, + ucmd->u.cache.BlockCnt); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR, + 0xffffffffUL); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ, + 1); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST + + GDT_SG_PTR, gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST + + GDT_SG_LEN, ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE); + } + } else { + /* raw service command */ + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION, + ucmd->u.raw.direction); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA, + 0xffffffffUL); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN, + ucmd->u.raw.sdlen); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN, + ucmd->u.raw.clen); + bcopy(ucmd->u.raw.cmd, gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CMD, + 12); + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] = + ucmd->u.raw.target; + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] = + ucmd->u.raw.lun; + gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] = + ucmd->u.raw.bus; + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN, + ucmd->u.raw.sense_len); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA, + gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[ucmd->u.raw.sdlen])); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ, + 1); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST + + GDT_SG_PTR, gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST + + GDT_SG_LEN, ucmd->u.raw.sdlen); + } + + *lock = splcam(); + gdt_stat.sg_count_act = 1; + gdt->sc_copy_cmd(gdt, gccb); + return (gccb); +} + +static void +gdt_internal_cache_cmd(struct gdt_softc *gdt,union ccb *ccb) +{ + int t; + + t = ccb->ccb_h.target_id; + GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cache_cmd(%p, %p, 0x%x, %d)\n", + gdt, ccb, ccb->csio.cdb_io.cdb_bytes[0], t)); + + switch (ccb->csio.cdb_io.cdb_bytes[0]) { + case TEST_UNIT_READY: + case START_STOP: + break; + case REQUEST_SENSE: + GDT_DPRINTF(GDT_D_MISC, ("REQUEST_SENSE\n")); + break; + case INQUIRY: + { + struct scsi_inquiry_data *inq; + + inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr; + bzero(inq, sizeof(struct scsi_inquiry_data)); + inq->device = (gdt->sc_hdr[t].hd_devtype & 4) ? + T_CDROM : T_DIRECT; + inq->dev_qual2 = (gdt->sc_hdr[t].hd_devtype & 1) ? 0x80 : 0; + inq->version = SCSI_REV_2; + inq->response_format = 2; + inq->additional_length = 32; + inq->flags = SID_CmdQue | SID_Sync; + strcpy(inq->vendor, "IIR "); + sprintf(inq->product, "Host Drive #%02d", t); + strcpy(inq->revision, " "); + break; + } + case MODE_SENSE_6: + { + struct mpd_data { + struct scsi_mode_hdr_6 hd; + struct scsi_mode_block_descr bd; + struct scsi_control_page cp; + } *mpd; + u_int8_t page; + + mpd = (struct mpd_data *)ccb->csio.data_ptr; + bzero(mpd, sizeof(struct mpd_data)); + mpd->hd.datalen = sizeof(struct scsi_mode_hdr_6) + + sizeof(struct scsi_mode_block_descr); + mpd->hd.dev_specific = (gdt->sc_hdr[t].hd_devtype & 2) ? 0x80 : 0; + mpd->hd.block_descr_len = sizeof(struct scsi_mode_block_descr); + mpd->bd.block_len[0] = (GDT_SECTOR_SIZE & 0x00ff0000) >> 16; + mpd->bd.block_len[1] = (GDT_SECTOR_SIZE & 0x0000ff00) >> 8; + mpd->bd.block_len[2] = (GDT_SECTOR_SIZE & 0x000000ff); + page=((struct scsi_mode_sense_6 *)ccb->csio.cdb_io.cdb_bytes)->page; + switch (page) { + default: + GDT_DPRINTF(GDT_D_MISC, ("MODE_SENSE_6: page 0x%x\n", page)); + break; + } + break; + } + case READ_CAPACITY: + { + struct scsi_read_capacity_data *rcd; + + rcd = (struct scsi_read_capacity_data *)ccb->csio.data_ptr; + bzero(rcd, sizeof(struct scsi_read_capacity_data)); + scsi_ulto4b(gdt->sc_hdr[t].hd_size - 1, rcd->addr); + scsi_ulto4b(GDT_SECTOR_SIZE, rcd->length); + break; + } + default: + GDT_DPRINTF(GDT_D_MISC, ("gdt_internal_cache_cmd(%d) unknown\n", + ccb->csio.cdb_io.cdb_bytes[0])); + break; + } + ccb->ccb_h.status = CAM_REQ_CMP; + --gdt_stat.io_count_act; + xpt_done(ccb); +} + +static void +gdtmapmem(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) +{ + bus_addr_t *busaddrp; + + busaddrp = (bus_addr_t *)arg; + *busaddrp = dm_segs->ds_addr; +} + +static void +gdtexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) +{ + struct gdt_ccb *gccb; + union ccb *ccb; + struct gdt_softc *gdt; + int i, lock; + + lock = splcam(); + + gccb = (struct gdt_ccb *)arg; + ccb = gccb->gc_ccb; + gdt = cam_sim_softc((struct cam_sim *)ccb->ccb_h.ccb_sim_ptr); + + GDT_DPRINTF(GDT_D_CMD, ("gdtexecuteccb(%p, %p, %p, %d, %d)\n", + gdt, gccb, dm_segs, nseg, error)); + gdt_stat.sg_count_act = nseg; + if (nseg > gdt_stat.sg_count_max) + gdt_stat.sg_count_max = nseg; + + /* Copy the segments into our SG list */ + if (gccb->gc_service == GDT_CACHESERVICE) { + for (i = 0; i < nseg; ++i) { + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST + + i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST + + i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len); + dm_segs++; + } + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ, + nseg); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR, + 0xffffffffUL); + + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_CACHE_SG_LST + + nseg * GDT_SG_SZ, sizeof(u_int32_t)); + } else { + for (i = 0; i < nseg; ++i) { + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST + + i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST + + i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len); + dm_segs++; + } + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ, + nseg); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA, + 0xffffffffUL); + + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_RAW_SG_LST + + nseg * GDT_SG_SZ, sizeof(u_int32_t)); + } + + if (nseg != 0) { + bus_dmasync_op_t op; + + if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) + op = BUS_DMASYNC_PREREAD; + else + op = BUS_DMASYNC_PREWRITE; + bus_dmamap_sync(gdt->sc_buffer_dmat, gccb->gc_dmamap, op); + } + + /* We must NOT abort the command here if CAM_REQ_INPROG is not set, + * because command semaphore is already set! + */ + + ccb->ccb_h.status |= CAM_SIM_QUEUED; + /* timeout handling */ + ccb->ccb_h.timeout_ch = + timeout(iir_timeout, (caddr_t)gccb, + (ccb->ccb_h.timeout * hz) / 1000); + + gdt->sc_copy_cmd(gdt, gccb); + splx(lock); +} + + +static void +iir_action( struct cam_sim *sim, union ccb *ccb ) +{ + struct gdt_softc *gdt; + int lock, bus, target, lun; + + gdt = (struct gdt_softc *)cam_sim_softc( sim ); + ccb->ccb_h.ccb_sim_ptr = sim; + bus = cam_sim_bus(sim); + target = ccb->ccb_h.target_id; + lun = ccb->ccb_h.target_lun; + GDT_DPRINTF(GDT_D_CMD, + ("iir_action(%p) func 0x%x cmd 0x%x bus %d target %d lun %d\n", + gdt, ccb->ccb_h.func_code, ccb->csio.cdb_io.cdb_bytes[0], + bus, target, lun)); + ++gdt_stat.io_count_act; + if (gdt_stat.io_count_act > gdt_stat.io_count_max) + gdt_stat.io_count_max = gdt_stat.io_count_act; + + switch (ccb->ccb_h.func_code) { + case XPT_SCSI_IO: + lock = splcam(); + TAILQ_INSERT_TAIL(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe); + ++gdt_stat.req_queue_act; + if (gdt_stat.req_queue_act > gdt_stat.req_queue_max) + gdt_stat.req_queue_max = gdt_stat.req_queue_act; + splx(lock); + gdt_next(gdt); + break; + case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ + case XPT_ABORT: /* Abort the specified CCB */ + /* XXX Implement */ + ccb->ccb_h.status = CAM_REQ_INVALID; + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + case XPT_SET_TRAN_SETTINGS: + ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + case XPT_GET_TRAN_SETTINGS: + /* Get default/user set transfer settings for the target */ + { + struct ccb_trans_settings *cts; + u_int target_mask; + + cts = &ccb->cts; + target_mask = 0x01 << target; + if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { + cts->flags = CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB; + cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; + cts->sync_period = 25; /* 10MHz */ + if (cts->sync_period != 0) + cts->sync_offset = 15; + + cts->valid = CCB_TRANS_SYNC_RATE_VALID + | CCB_TRANS_SYNC_OFFSET_VALID + | CCB_TRANS_BUS_WIDTH_VALID + | CCB_TRANS_DISC_VALID + | CCB_TRANS_TQ_VALID; + ccb->ccb_h.status = CAM_REQ_CMP; + } else { + ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; + } + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + } + case XPT_CALC_GEOMETRY: + { + struct ccb_calc_geometry *ccg; + u_int32_t secs_per_cylinder; + + ccg = &ccb->ccg; + ccg->heads = gdt->sc_hdr[target].hd_heads; + ccg->secs_per_track = gdt->sc_hdr[target].hd_secs; + secs_per_cylinder = ccg->heads * ccg->secs_per_track; + ccg->cylinders = ccg->volume_size / secs_per_cylinder; + ccb->ccb_h.status = CAM_REQ_CMP; + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + } + case XPT_RESET_BUS: /* Reset the specified SCSI bus */ + { + /* XXX Implement */ + ccb->ccb_h.status = CAM_REQ_CMP; + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + } + case XPT_TERM_IO: /* Terminate the I/O process */ + /* XXX Implement */ + ccb->ccb_h.status = CAM_REQ_INVALID; + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + case XPT_PATH_INQ: /* Path routing inquiry */ + { + struct ccb_pathinq *cpi = &ccb->cpi; + + cpi->version_num = 1; + cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; + cpi->hba_inquiry |= PI_WIDE_16; + cpi->target_sprt = 1; + cpi->hba_misc = 0; + cpi->hba_eng_cnt = 0; + if (bus == gdt->sc_virt_bus) + cpi->max_target = GDT_MAX_HDRIVES - 1; + else if (gdt->sc_class & GDT_FC) + cpi->max_target = GDT_MAXID_FC - 1; + else + cpi->max_target = GDT_MAXID - 1; + cpi->max_lun = 7; + cpi->unit_number = cam_sim_unit(sim); + cpi->bus_id = bus; + cpi->initiator_id = + (bus == gdt->sc_virt_bus ? 127 : gdt->sc_bus_id[bus]); + cpi->base_transfer_speed = 3300; + strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); + strncpy(cpi->hba_vid, "Intel Corp.", HBA_IDLEN); + strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); + cpi->ccb_h.status = CAM_REQ_CMP; + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + } + default: + GDT_DPRINTF(GDT_D_INVALID, ("gdt_next(%p) cmd 0x%x invalid\n", + gdt, ccb->ccb_h.func_code)); + ccb->ccb_h.status = CAM_REQ_INVALID; + --gdt_stat.io_count_act; + xpt_done(ccb); + break; + } +} + +static void +iir_poll( struct cam_sim *sim ) +{ + struct gdt_softc *gdt; + + gdt = (struct gdt_softc *)cam_sim_softc( sim ); + GDT_DPRINTF(GDT_D_CMD, ("iir_poll sim %p gdt %p\n", sim, gdt)); + iir_intr(gdt); +} + +static void +iir_timeout(void *arg) +{ + GDT_DPRINTF(GDT_D_TIMEOUT, ("iir_timeout(%p)\n", arg)); +} + +static void +iir_watchdog(void *arg) +{ + struct gdt_softc *gdt; + + gdt = (struct gdt_softc *)arg; + GDT_DPRINTF(GDT_D_DEBUG, ("iir_watchdog(%p)\n", gdt)); + + { + int ccbs = 0, ucmds = 0, frees = 0, pends = 0; + struct gdt_ccb *p; + struct ccb_hdr *h; + struct gdt_ucmd *u; + + for (h = TAILQ_FIRST(&gdt->sc_ccb_queue); h != NULL; + h = TAILQ_NEXT(h, sim_links.tqe)) + ccbs++; + for (u = TAILQ_FIRST(&gdt->sc_ucmd_queue); u != NULL; + u = TAILQ_NEXT(u, links)) + ucmds++; + for (p = SLIST_FIRST(&gdt->sc_free_gccb); p != NULL; + p = SLIST_NEXT(p, sle)) + frees++; + for (p = SLIST_FIRST(&gdt->sc_pending_gccb); p != NULL; + p = SLIST_NEXT(p, sle)) + pends++; + + GDT_DPRINTF(GDT_D_TIMEOUT, ("ccbs %d ucmds %d frees %d pends %d\n", + ccbs, ucmds, frees, pends)); + } + + timeout(iir_watchdog, (caddr_t)gdt, hz * 15); +} + +static void +iir_shutdown( void *arg, int howto ) +{ + struct gdt_softc *gdt; + struct gdt_ccb *gccb; + gdt_ucmd_t *ucmd; + int lock, i; + + gdt = (struct gdt_softc *)arg; + GDT_DPRINTF(GDT_D_CMD, ("iir_shutdown(%p, %d)\n", gdt, howto)); + + printf("iir%d: Flushing all Host Drives. Please wait ... ", + gdt->sc_hanum); + + /* allocate ucmd buffer */ + ucmd = malloc(sizeof(gdt_ucmd_t), M_DEVBUF, M_NOWAIT); + if (ucmd == NULL) { + printf("iir%d: iir_shutdown(): Cannot allocate resource\n", + gdt->sc_hanum); + return; + } + bzero(ucmd, sizeof(gdt_ucmd_t)); + + /* wait for pending IOs */ + lock = splcam(); + gdt->sc_state = GDT_SHUTDOWN; + splx(lock); + if ((gccb = SLIST_FIRST(&gdt->sc_pending_gccb)) != NULL) + (void) tsleep((void *)gccb, PCATCH | PRIBIO, "iirshw", 100 * hz); + + /* flush */ + for (i = 0; i < GDT_MAX_HDRIVES; ++i) { + if (gdt->sc_hdr[i].hd_present) { + ucmd->service = GDT_CACHESERVICE; + ucmd->OpCode = GDT_FLUSH; + ucmd->u.cache.DeviceNo = i; + lock = splcam(); + TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links); + ucmd->complete_flag = FALSE; + splx(lock); + gdt_next(gdt); + if (!ucmd->complete_flag) + (void) tsleep((void *)ucmd, PCATCH|PRIBIO, "iirshw", 10*hz); + } + } + + free(ucmd, M_DEVBUF); + printf("Done.\n"); +} + +void +iir_intr(void *arg) +{ + struct gdt_softc *gdt = arg; + struct gdt_intr_ctx ctx; + int lock = 0; + struct gdt_ccb *gccb; + gdt_ucmd_t *ucmd; + u_int32_t cnt; + + GDT_DPRINTF(GDT_D_INTR, ("gdt_intr(%p)\n", gdt)); + + /* If polling and we were not called from gdt_wait, just return */ + if ((gdt->sc_state & GDT_POLLING) && + !(gdt->sc_state & GDT_POLL_WAIT)) + return; + + if (!(gdt->sc_state & GDT_POLLING)) + lock = splcam(); + gdt_wait_index = 0; + + ctx.istatus = gdt->sc_get_status(gdt); + if (!ctx.istatus) { + if (!(gdt->sc_state & GDT_POLLING)) + splx(lock); + gdt->sc_status = GDT_S_NO_STATUS; + return; + } + + gdt->sc_intr(gdt, &ctx); + + gdt->sc_status = ctx.cmd_status; + gdt->sc_service = ctx.service; + gdt->sc_info = ctx.info; + gdt->sc_info2 = ctx.info2; + + if (gdt->sc_state & GDT_POLL_WAIT) { + gdt_wait_gdt = gdt; + gdt_wait_index = ctx.istatus; + } + + if (ctx.istatus == GDT_ASYNCINDEX) { + gdt_async_event(gdt, ctx.service); + if (!(gdt->sc_state & GDT_POLLING)) + splx(lock); + return; + } + if (ctx.istatus == GDT_SPEZINDEX) { + GDT_DPRINTF(GDT_D_INVALID, + ("iir%d: Service unknown or not initialized!\n", + gdt->sc_hanum)); + gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.driver); + gdt->sc_dvr.eu.driver.ionode = gdt->sc_hanum; + gdt_store_event(GDT_ES_DRIVER, 4, &gdt->sc_dvr); + if (!(gdt->sc_state & GDT_POLLING)) + splx(lock); + return; + } + + gccb = &gdt->sc_gccbs[ctx.istatus - 2]; + ctx.service = gccb->gc_service; + + switch (gccb->gc_flags) { + case GDT_GCF_UNUSED: + GDT_DPRINTF(GDT_D_INVALID, ("iir%d: Index (%d) to unused command!\n", + gdt->sc_hanum, ctx.istatus)); + gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.driver); + gdt->sc_dvr.eu.driver.ionode = gdt->sc_hanum; + gdt->sc_dvr.eu.driver.index = ctx.istatus; + gdt_store_event(GDT_ES_DRIVER, 1, &gdt->sc_dvr); + gdt_free_ccb(gdt, gccb); + /* fallthrough */ + + case GDT_GCF_INTERNAL: + if (!(gdt->sc_state & GDT_POLLING)) + splx(lock); + break; + + case GDT_GCF_IOCTL: + ucmd = gccb->gc_ucmd; + if (gdt->sc_status == GDT_S_BSY) { + GDT_DPRINTF(GDT_D_DEBUG, ("iir_intr(%p) ioctl: gccb %p busy\n", + gdt, gccb)); + TAILQ_INSERT_HEAD(&gdt->sc_ucmd_queue, ucmd, links); + if (!(gdt->sc_state & GDT_POLLING)) + splx(lock); + } else { + ucmd->status = gdt->sc_status; + ucmd->info = gdt->sc_info; + ucmd->complete_flag = TRUE; + if (ucmd->service == GDT_CACHESERVICE) { + if (ucmd->OpCode == GDT_IOCTL) { + cnt = ucmd->u.ioctl.param_size; + if (cnt != 0) + bcopy(gccb->gc_scratch, ucmd->data, cnt); + } else { + cnt = ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE; + if (cnt != 0) + bcopy(gccb->gc_scratch, ucmd->data, cnt); + } + } else { + cnt = ucmd->u.raw.sdlen; + if (cnt != 0) + bcopy(gccb->gc_scratch, ucmd->data, cnt); + if (ucmd->u.raw.sense_len != 0) + bcopy(gccb->gc_scratch, ucmd->data, cnt); + } + gdt_free_ccb(gdt, gccb); + if (!(gdt->sc_state & GDT_POLLING)) + splx(lock); + /* wakeup */ + wakeup(ucmd); + } + gdt_next(gdt); + break; + + default: + gdt_free_ccb(gdt, gccb); + gdt_sync_event(gdt, ctx.service, ctx.istatus, gccb); + if (!(gdt->sc_state & GDT_POLLING)) + splx(lock); + gdt_next(gdt); + break; + } +} + +int +gdt_async_event(struct gdt_softc *gdt, int service) +{ + struct gdt_ccb *gccb; + + GDT_DPRINTF(GDT_D_INTR, ("gdt_async_event(%p, %d)\n", gdt, service)); + + if (service == GDT_SCREENSERVICE) { + if (gdt->sc_status == GDT_MSG_REQUEST) { + while (gdt->sc_test_busy(gdt)) + DELAY(1); + bzero(gdt->sc_cmd, GDT_CMD_SZ); + gccb = gdt_get_ccb(gdt); + if (gccb == NULL) { + printf("iir%d: No free command index found\n", + gdt->sc_hanum); + return (1); + } + gccb->gc_service = service; + gccb->gc_flags = GDT_GCF_SCREEN; + gdt->sc_set_sema0(gdt); + gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX, + gccb->gc_cmd_index); + gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_READ); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE, + GDT_MSG_INV_HANDLE); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR, + gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + gdt->sc_cmd_off = 0; + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ, + sizeof(u_int32_t)); + gdt->sc_cmd_cnt = 0; + gdt->sc_copy_cmd(gdt, gccb); + printf("iir%d: [PCI %d/%d] ", + gdt->sc_hanum,gdt->sc_bus,gdt->sc_slot); + gdt->sc_release_event(gdt); + } + + } else { + if ((gdt->sc_fw_vers & 0xff) >= 0x1a) { + gdt->sc_dvr.size = 0; + gdt->sc_dvr.eu.async.ionode = gdt->sc_hanum; + gdt->sc_dvr.eu.async.status = gdt->sc_status; + /* severity and event_string already set! */ + } else { + gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.async); + gdt->sc_dvr.eu.async.ionode = gdt->sc_hanum; + gdt->sc_dvr.eu.async.service = service; + gdt->sc_dvr.eu.async.status = gdt->sc_status; + gdt->sc_dvr.eu.async.info = gdt->sc_info; + *(u_int32_t *)gdt->sc_dvr.eu.async.scsi_coord = gdt->sc_info2; + } + gdt_store_event(GDT_ES_ASYNC, service, &gdt->sc_dvr); + printf("iir%d: %s\n", gdt->sc_hanum, gdt->sc_dvr.event_string); + } + + return (0); +} + +int +gdt_sync_event(struct gdt_softc *gdt, int service, + u_int8_t index, struct gdt_ccb *gccb) +{ + union ccb *ccb; + bus_dmasync_op_t op; + + GDT_DPRINTF(GDT_D_INTR, + ("gdt_sync_event(%p, %d, %d, %p)\n", gdt,service,index,gccb)); + + ccb = gccb->gc_ccb; + + if (service == GDT_SCREENSERVICE) { + u_int32_t msg_len; + + msg_len = gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_LEN); + if (msg_len) + if (!(gccb->gc_scratch[GDT_SCR_MSG_ANSWER] && + gccb->gc_scratch[GDT_SCR_MSG_EXT])) { + gccb->gc_scratch[GDT_SCR_MSG_TEXT + msg_len] = '\0'; + printf("%s",&gccb->gc_scratch[GDT_SCR_MSG_TEXT]); + } + + if (gccb->gc_scratch[GDT_SCR_MSG_EXT] && + !gccb->gc_scratch[GDT_SCR_MSG_ANSWER]) { + while (gdt->sc_test_busy(gdt)) + DELAY(1); + bzero(gdt->sc_cmd, GDT_CMD_SZ); + gccb = gdt_get_ccb(gdt); + if (gccb == NULL) { + printf("iir%d: No free command index found\n", + gdt->sc_hanum); + return (1); + } + gccb->gc_service = service; + gccb->gc_flags = GDT_GCF_SCREEN; + gdt->sc_set_sema0(gdt); + gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX, + gccb->gc_cmd_index); + gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_READ); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE, + gccb->gc_scratch[GDT_SCR_MSG_HANDLE]); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR, + gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + gdt->sc_cmd_off = 0; + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ, + sizeof(u_int32_t)); + gdt->sc_cmd_cnt = 0; + gdt->sc_copy_cmd(gdt, gccb); + gdt->sc_release_event(gdt); + return (0); + } + + if (gccb->gc_scratch[GDT_SCR_MSG_ANSWER] && + gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN)) { + /* default answers (getchar() not possible) */ + if (gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN) == 1) { + gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_ALEN, 0); + gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_LEN, 1); + gccb->gc_scratch[GDT_SCR_MSG_TEXT] = 0; + } else { + gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_ALEN, + gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN) - 2); + gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_LEN, 2); + gccb->gc_scratch[GDT_SCR_MSG_TEXT] = 1; + gccb->gc_scratch[GDT_SCR_MSG_TEXT + 1] = 0; + } + gccb->gc_scratch[GDT_SCR_MSG_EXT] = 0; + gccb->gc_scratch[GDT_SCR_MSG_ANSWER] = 0; + while (gdt->sc_test_busy(gdt)) + DELAY(1); + bzero(gdt->sc_cmd, GDT_CMD_SZ); + gccb = gdt_get_ccb(gdt); + if (gccb == NULL) { + printf("iir%d: No free command index found\n", + gdt->sc_hanum); + return (1); + } + gccb->gc_service = service; + gccb->gc_flags = GDT_GCF_SCREEN; + gdt->sc_set_sema0(gdt); + gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX, + gccb->gc_cmd_index); + gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_WRITE); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE, + gccb->gc_scratch[GDT_SCR_MSG_HANDLE]); + gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR, + gdt_ccb_vtop(gdt, gccb) + + offsetof(struct gdt_ccb, gc_scratch[0])); + gdt->sc_cmd_off = 0; + gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ, + sizeof(u_int32_t)); + gdt->sc_cmd_cnt = 0; + gdt->sc_copy_cmd(gdt, gccb); + gdt->sc_release_event(gdt); + return (0); + } + printf("\n"); + return (0); + } else { + untimeout(iir_timeout, gccb, ccb->ccb_h.timeout_ch); + if (gdt->sc_status == GDT_S_BSY) { + GDT_DPRINTF(GDT_D_DEBUG, ("gdt_sync_event(%p) gccb %p busy\n", + gdt, gccb)); + TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe); + ++gdt_stat.req_queue_act; + if (gdt_stat.req_queue_act > gdt_stat.req_queue_max) + gdt_stat.req_queue_max = gdt_stat.req_queue_act; + return (2); + } + + if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) + op = BUS_DMASYNC_POSTREAD; + else + op = BUS_DMASYNC_POSTWRITE; + bus_dmamap_sync(gdt->sc_buffer_dmat, gccb->gc_dmamap, op); + + ccb->csio.resid = 0; + if (gdt->sc_status == GDT_S_OK) { + ccb->ccb_h.status = CAM_REQ_CMP; + } else { + /* error */ + if (gccb->gc_service == GDT_CACHESERVICE) { + ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; + ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; + bzero(&ccb->csio.sense_data, ccb->csio.sense_len); + ccb->csio.sense_data.error_code = + SSD_CURRENT_ERROR | SSD_ERRCODE_VALID; + ccb->csio.sense_data.flags = SSD_KEY_NOT_READY; + + gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.sync); + gdt->sc_dvr.eu.sync.ionode = gdt->sc_hanum; + gdt->sc_dvr.eu.sync.service = service; + gdt->sc_dvr.eu.sync.status = gdt->sc_status; + gdt->sc_dvr.eu.sync.info = gdt->sc_info; + gdt->sc_dvr.eu.sync.hostdrive = ccb->ccb_h.target_id; + if (gdt->sc_status >= 0x8000) + gdt_store_event(GDT_ES_SYNC, 0, &gdt->sc_dvr); + else + gdt_store_event(GDT_ES_SYNC, service, &gdt->sc_dvr); + } else { + /* raw service */ + if (gdt->sc_status != GDT_S_RAW_SCSI || gdt->sc_info >= 0x100) { + ccb->ccb_h.status = CAM_SEL_TIMEOUT; + } else { + ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR|CAM_AUTOSNS_VALID; + ccb->csio.scsi_status = gdt->sc_info; + bcopy(gccb->gc_scratch, &ccb->csio.sense_data, + ccb->csio.sense_len); + } + } + } + --gdt_stat.io_count_act; + xpt_done(ccb); + } + return (0); +} + +/* Controller event handling functions */ +gdt_evt_str *gdt_store_event(u_int16_t source, u_int16_t idx, + gdt_evt_data *evt) +{ + gdt_evt_str *e; + struct timeval tv; + + GDT_DPRINTF(GDT_D_MISC, ("gdt_store_event(%d, %d)\n", source, idx)); + if (source == 0) /* no source -> no event */ + return 0; + + if (ebuffer[elastidx].event_source == source && + ebuffer[elastidx].event_idx == idx && + ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 && + !memcmp((char *)&ebuffer[elastidx].event_data.eu, + (char *)&evt->eu, evt->size)) || + (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 && + !strcmp((char *)&ebuffer[elastidx].event_data.event_string, + (char *)&evt->event_string)))) { + e = &ebuffer[elastidx]; + getmicrotime(&tv); + e->last_stamp = tv.tv_sec; + ++e->same_count; + } else { + if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */ + ++elastidx; + if (elastidx == GDT_MAX_EVENTS) + elastidx = 0; + if (elastidx == eoldidx) { /* reached mark ? */ + ++eoldidx; + if (eoldidx == GDT_MAX_EVENTS) + eoldidx = 0; + } + } + e = &ebuffer[elastidx]; + e->event_source = source; + e->event_idx = idx; + getmicrotime(&tv); + e->first_stamp = e->last_stamp = tv.tv_sec; + e->same_count = 1; + e->event_data = *evt; + e->application = 0; + } + return e; +} + +int gdt_read_event(int handle, gdt_evt_str *estr) +{ + gdt_evt_str *e; + int eindex, lock; + + GDT_DPRINTF(GDT_D_MISC, ("gdt_read_event(%d)\n", handle)); + lock = splcam(); + if (handle == -1) + eindex = eoldidx; + else + eindex = handle; + estr->event_source = 0; + + if (eindex >= GDT_MAX_EVENTS) { + splx(lock); + return eindex; + } + e = &ebuffer[eindex]; + if (e->event_source != 0) { + if (eindex != elastidx) { + if (++eindex == GDT_MAX_EVENTS) + eindex = 0; + } else { + eindex = -1; + } + memcpy(estr, e, sizeof(gdt_evt_str)); + } + splx(lock); + return eindex; +} + +void gdt_readapp_event(u_int8_t application, gdt_evt_str *estr) +{ + gdt_evt_str *e; + int found = FALSE; + int eindex, lock; + + GDT_DPRINTF(GDT_D_MISC, ("gdt_readapp_event(%d)\n", application)); + lock = splcam(); + eindex = eoldidx; + for (;;) { + e = &ebuffer[eindex]; + if (e->event_source == 0) + break; + if ((e->application & application) == 0) { + e->application |= application; + found = TRUE; + break; + } + if (eindex == elastidx) + break; + if (++eindex == GDT_MAX_EVENTS) + eindex = 0; + } + if (found) + memcpy(estr, e, sizeof(gdt_evt_str)); + else + estr->event_source = 0; + splx(lock); +} + +void gdt_clear_events() +{ + GDT_DPRINTF(GDT_D_MISC, ("gdt_clear_events\n")); + + eoldidx = elastidx = 0; + ebuffer[0].event_source = 0; +} |
