21190895ab
- Use DEVMETHOD_END. - Use NULL instead of 0 for pointers. MFC after: 3 days
609 lines
16 KiB
C
609 lines
16 KiB
C
/*-
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* Copyright (c) 2012 Alexander Motin <mav@FreeBSD.org>
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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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* 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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* without modification, immediately at the beginning of the file.
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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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/module.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/endian.h>
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#include <sys/malloc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/led/led.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include "ahci.h"
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_sim.h>
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#include <cam/cam_xpt_sim.h>
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#include <cam/cam_debug.h>
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#include <cam/scsi/scsi_ses.h>
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/* local prototypes */
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static void ahciemaction(struct cam_sim *sim, union ccb *ccb);
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static void ahciempoll(struct cam_sim *sim);
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static int ahci_em_reset(device_t dev);
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static void ahci_em_led(void *priv, int onoff);
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static void ahci_em_setleds(device_t dev, int c);
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static int
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ahci_em_probe(device_t dev)
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{
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device_set_desc_copy(dev, "AHCI enclosure management bridge");
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return (0);
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}
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static int
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ahci_em_attach(device_t dev)
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{
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device_t parent = device_get_parent(dev);
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struct ahci_controller *ctlr = device_get_softc(parent);
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struct ahci_enclosure *enc = device_get_softc(dev);
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struct cam_devq *devq;
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int i, c, rid, error;
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char buf[32];
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enc->dev = dev;
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enc->quirks = ctlr->quirks;
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enc->channels = ctlr->channels;
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enc->ichannels = ctlr->ichannels;
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mtx_init(&enc->mtx, "AHCI enclosure lock", NULL, MTX_DEF);
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rid = 0;
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if (!(enc->r_memc = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&rid, RF_ACTIVE))) {
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mtx_destroy(&enc->mtx);
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return (ENXIO);
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}
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enc->capsem = ATA_INL(enc->r_memc, 0);
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rid = 1;
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if (!(enc->r_memt = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&rid, RF_ACTIVE))) {
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error = ENXIO;
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goto err0;
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}
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if ((enc->capsem & (AHCI_EM_XMT | AHCI_EM_SMB)) == 0) {
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rid = 2;
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if (!(enc->r_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&rid, RF_ACTIVE))) {
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error = ENXIO;
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goto err0;
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}
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} else
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enc->r_memr = NULL;
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mtx_lock(&enc->mtx);
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if (ahci_em_reset(dev) != 0) {
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error = ENXIO;
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goto err1;
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}
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rid = ATA_IRQ_RID;
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/* Create the device queue for our SIM. */
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devq = cam_simq_alloc(1);
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if (devq == NULL) {
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device_printf(dev, "Unable to allocate SIM queue\n");
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error = ENOMEM;
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goto err1;
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}
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/* Construct SIM entry */
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enc->sim = cam_sim_alloc(ahciemaction, ahciempoll, "ahciem", enc,
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device_get_unit(dev), &enc->mtx,
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1, 0, devq);
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if (enc->sim == NULL) {
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cam_simq_free(devq);
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device_printf(dev, "Unable to allocate SIM\n");
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error = ENOMEM;
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goto err1;
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}
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if (xpt_bus_register(enc->sim, dev, 0) != CAM_SUCCESS) {
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device_printf(dev, "unable to register xpt bus\n");
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error = ENXIO;
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goto err2;
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}
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if (xpt_create_path(&enc->path, /*periph*/NULL, cam_sim_path(enc->sim),
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CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
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device_printf(dev, "Unable to create path\n");
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error = ENXIO;
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goto err3;
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}
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mtx_unlock(&enc->mtx);
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if (bootverbose) {
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device_printf(dev, "Caps:%s%s%s%s%s%s%s%s\n",
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(enc->capsem & AHCI_EM_PM) ? " PM":"",
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(enc->capsem & AHCI_EM_ALHD) ? " ALHD":"",
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(enc->capsem & AHCI_EM_XMT) ? " XMT":"",
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(enc->capsem & AHCI_EM_SMB) ? " SMB":"",
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(enc->capsem & AHCI_EM_SGPIO) ? " SGPIO":"",
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(enc->capsem & AHCI_EM_SES2) ? " SES-2":"",
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(enc->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"",
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(enc->capsem & AHCI_EM_LED) ? " LED":"");
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}
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if ((enc->capsem & AHCI_EM_LED)) {
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for (c = 0; c < enc->channels; c++) {
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if ((enc->ichannels & (1 << c)) == 0)
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continue;
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for (i = 0; i < AHCI_NUM_LEDS; i++) {
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enc->leds[c * AHCI_NUM_LEDS + i].dev = dev;
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enc->leds[c * AHCI_NUM_LEDS + i].num =
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c * AHCI_NUM_LEDS + i;
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}
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if ((enc->capsem & AHCI_EM_ALHD) == 0) {
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snprintf(buf, sizeof(buf), "%s.%d.act",
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device_get_nameunit(parent), c);
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enc->leds[c * AHCI_NUM_LEDS + 0].led =
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led_create(ahci_em_led,
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&enc->leds[c * AHCI_NUM_LEDS + 0], buf);
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}
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snprintf(buf, sizeof(buf), "%s.%d.locate",
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device_get_nameunit(parent), c);
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enc->leds[c * AHCI_NUM_LEDS + 1].led =
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led_create(ahci_em_led,
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&enc->leds[c * AHCI_NUM_LEDS + 1], buf);
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snprintf(buf, sizeof(buf), "%s.%d.fault",
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device_get_nameunit(parent), c);
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enc->leds[c * AHCI_NUM_LEDS + 2].led =
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led_create(ahci_em_led,
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&enc->leds[c * AHCI_NUM_LEDS + 2], buf);
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}
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}
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return (0);
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err3:
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xpt_bus_deregister(cam_sim_path(enc->sim));
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err2:
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cam_sim_free(enc->sim, /*free_devq*/TRUE);
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err1:
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mtx_unlock(&enc->mtx);
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if (enc->r_memr)
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bus_release_resource(dev, SYS_RES_MEMORY, 2, enc->r_memr);
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err0:
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if (enc->r_memt)
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bus_release_resource(dev, SYS_RES_MEMORY, 1, enc->r_memt);
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bus_release_resource(dev, SYS_RES_MEMORY, 0, enc->r_memc);
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mtx_destroy(&enc->mtx);
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return (error);
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}
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static int
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ahci_em_detach(device_t dev)
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{
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struct ahci_enclosure *enc = device_get_softc(dev);
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int i;
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for (i = 0; i < enc->channels * AHCI_NUM_LEDS; i++) {
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if (enc->leds[i].led)
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led_destroy(enc->leds[i].led);
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}
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mtx_lock(&enc->mtx);
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xpt_async(AC_LOST_DEVICE, enc->path, NULL);
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xpt_free_path(enc->path);
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xpt_bus_deregister(cam_sim_path(enc->sim));
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cam_sim_free(enc->sim, /*free_devq*/TRUE);
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mtx_unlock(&enc->mtx);
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bus_release_resource(dev, SYS_RES_MEMORY, 0, enc->r_memc);
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bus_release_resource(dev, SYS_RES_MEMORY, 1, enc->r_memt);
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if (enc->r_memr)
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bus_release_resource(dev, SYS_RES_MEMORY, 2, enc->r_memr);
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mtx_destroy(&enc->mtx);
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return (0);
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}
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static int
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ahci_em_reset(device_t dev)
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{
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struct ahci_enclosure *enc;
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int i, timeout;
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enc = device_get_softc(dev);
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ATA_OUTL(enc->r_memc, 0, AHCI_EM_RST);
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timeout = 1000;
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while ((ATA_INL(enc->r_memc, 0) & AHCI_EM_RST) &&
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--timeout > 0)
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DELAY(1000);
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if (timeout == 0) {
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device_printf(dev, "EM timeout\n");
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return (1);
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}
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for (i = 0; i < enc->channels; i++)
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ahci_em_setleds(dev, i);
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return (0);
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}
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static int
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ahci_em_suspend(device_t dev)
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{
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struct ahci_enclosure *enc = device_get_softc(dev);
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mtx_lock(&enc->mtx);
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xpt_freeze_simq(enc->sim, 1);
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mtx_unlock(&enc->mtx);
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return (0);
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}
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static int
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ahci_em_resume(device_t dev)
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{
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struct ahci_enclosure *enc = device_get_softc(dev);
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mtx_lock(&enc->mtx);
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ahci_em_reset(dev);
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xpt_release_simq(enc->sim, TRUE);
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mtx_unlock(&enc->mtx);
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return (0);
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}
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devclass_t ahciem_devclass;
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static device_method_t ahciem_methods[] = {
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DEVMETHOD(device_probe, ahci_em_probe),
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DEVMETHOD(device_attach, ahci_em_attach),
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DEVMETHOD(device_detach, ahci_em_detach),
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DEVMETHOD(device_suspend, ahci_em_suspend),
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DEVMETHOD(device_resume, ahci_em_resume),
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DEVMETHOD_END
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};
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static driver_t ahciem_driver = {
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"ahciem",
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ahciem_methods,
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sizeof(struct ahci_enclosure)
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};
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DRIVER_MODULE(ahciem, ahci, ahciem_driver, ahciem_devclass, NULL, NULL);
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static void
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ahci_em_setleds(device_t dev, int c)
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{
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struct ahci_enclosure *enc;
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int timeout;
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int16_t val;
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enc = device_get_softc(dev);
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val = 0;
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if (enc->status[c][2] & 0x80) /* Activity */
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val |= (1 << 0);
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if (enc->status[c][2] & SESCTL_RQSID) /* Identification */
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val |= (1 << 3);
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else if (enc->status[c][3] & SESCTL_RQSFLT) /* Fault */
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val |= (1 << 6);
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else if (enc->status[c][1] & 0x02) /* Rebuild */
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val |= (1 << 6) | (1 << 3);
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timeout = 10000;
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while (ATA_INL(enc->r_memc, 0) & (AHCI_EM_TM | AHCI_EM_RST) &&
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--timeout > 0)
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DELAY(100);
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if (timeout == 0)
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device_printf(dev, "Transmit timeout\n");
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ATA_OUTL(enc->r_memt, 0, (1 << 8) | (0 << 16) | (0 << 24));
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ATA_OUTL(enc->r_memt, 4, c | (0 << 8) | (val << 16));
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ATA_OUTL(enc->r_memc, 0, AHCI_EM_TM);
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}
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static void
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ahci_em_led(void *priv, int onoff)
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{
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struct ahci_led *led;
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struct ahci_enclosure *enc;
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int c, l;
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led = (struct ahci_led *)priv;
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enc = device_get_softc(led->dev);
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c = led->num / AHCI_NUM_LEDS;
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l = led->num % AHCI_NUM_LEDS;
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if (l == 0) {
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if (onoff)
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enc->status[c][2] |= 0x80;
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else
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enc->status[c][2] &= ~0x80;
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} else if (l == 1) {
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if (onoff)
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enc->status[c][2] |= SESCTL_RQSID;
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else
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enc->status[c][2] &= ~SESCTL_RQSID;
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} else if (l == 2) {
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if (onoff)
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enc->status[c][3] |= SESCTL_RQSFLT;
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else
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enc->status[c][3] &= SESCTL_RQSFLT;
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}
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ahci_em_setleds(led->dev, c);
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}
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static int
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ahci_check_ids(union ccb *ccb)
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{
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if (ccb->ccb_h.target_id != 0) {
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ccb->ccb_h.status = CAM_TID_INVALID;
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xpt_done(ccb);
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return (-1);
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}
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if (ccb->ccb_h.target_lun != 0) {
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ccb->ccb_h.status = CAM_LUN_INVALID;
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xpt_done(ccb);
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return (-1);
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}
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return (0);
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}
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static void
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ahci_em_emulate_ses_on_led(device_t dev, union ccb *ccb)
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{
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struct ahci_enclosure *enc;
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struct ses_status_page *page;
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struct ses_status_array_dev_slot *ads, *ads0;
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struct ses_elm_desc_hdr *elmd;
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uint8_t *buf;
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int i;
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enc = device_get_softc(dev);
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buf = ccb->ataio.data_ptr;
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/* General request validation. */
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if (ccb->ataio.cmd.command != ATA_SEP_ATTN ||
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ccb->ataio.dxfer_len < ccb->ataio.cmd.sector_count * 4) {
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ccb->ccb_h.status = CAM_REQ_INVALID;
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goto out;
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}
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/* SEMB IDENTIFY */
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if (ccb->ataio.cmd.features == 0xEC &&
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ccb->ataio.cmd.sector_count >= 16) {
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bzero(buf, ccb->ataio.dxfer_len);
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buf[0] = 64; /* Valid bytes. */
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buf[2] = 0x30; /* NAA Locally Assigned. */
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strncpy(&buf[3], device_get_nameunit(dev), 7);
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strncpy(&buf[10], "AHCI ", SID_VENDOR_SIZE);
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strncpy(&buf[18], "SGPIO Enclosure ", SID_PRODUCT_SIZE);
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strncpy(&buf[34], "1.00", SID_REVISION_SIZE);
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strncpy(&buf[39], "0001", 4);
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strncpy(&buf[43], "S-E-S ", 6);
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strncpy(&buf[49], "2.00", 4);
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ccb->ccb_h.status = CAM_REQ_CMP;
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goto out;
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}
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/* SEMB RECEIVE DIAGNOSTIC RESULT (0) */
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page = (struct ses_status_page *)buf;
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if (ccb->ataio.cmd.lba_low == 0x02 &&
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ccb->ataio.cmd.features == 0x00 &&
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ccb->ataio.cmd.sector_count >= 2) {
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bzero(buf, ccb->ataio.dxfer_len);
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page->hdr.page_code = 0;
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scsi_ulto2b(4, page->hdr.length);
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buf[4] = 0;
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buf[5] = 1;
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buf[6] = 2;
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buf[7] = 7;
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ccb->ccb_h.status = CAM_REQ_CMP;
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goto out;
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}
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/* SEMB RECEIVE DIAGNOSTIC RESULT (1) */
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if (ccb->ataio.cmd.lba_low == 0x02 &&
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ccb->ataio.cmd.features == 0x01 &&
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ccb->ataio.cmd.sector_count >= 13) {
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struct ses_enc_desc *ed;
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struct ses_elm_type_desc *td;
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bzero(buf, ccb->ataio.dxfer_len);
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page->hdr.page_code = 0x01;
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scsi_ulto2b(4 + 4 + 36 + 4, page->hdr.length);
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ed = (struct ses_enc_desc *)&buf[8];
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ed->byte0 = 0x11;
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ed->subenc_id = 0;
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ed->num_types = 1;
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ed->length = 36;
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strncpy(ed->vendor_id, "AHCI ", SID_VENDOR_SIZE);
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strncpy(ed->product_id, "SGPIO Enclosure ", SID_PRODUCT_SIZE);
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strncpy(ed->product_rev, " ", SID_REVISION_SIZE);
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td = (struct ses_elm_type_desc *)ses_enc_desc_next(ed);
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td->etype_elm_type = 0x17;
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td->etype_maxelt = enc->channels;
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td->etype_subenc = 0;
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td->etype_txt_len = 0;
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ccb->ccb_h.status = CAM_REQ_CMP;
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goto out;
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}
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/* SEMB RECEIVE DIAGNOSTIC RESULT (2) */
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if (ccb->ataio.cmd.lba_low == 0x02 &&
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ccb->ataio.cmd.features == 0x02 &&
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ccb->ataio.cmd.sector_count >= (3 + enc->channels)) {
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bzero(buf, ccb->ataio.dxfer_len);
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page->hdr.page_code = 0x02;
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scsi_ulto2b(4 + 4 * (1 + enc->channels),
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page->hdr.length);
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for (i = 0; i < enc->channels; i++) {
|
|
ads = &page->elements[i + 1].array_dev_slot;
|
|
memcpy(ads, enc->status[i], 4);
|
|
ads->common.bytes[0] |=
|
|
(enc->ichannels & (1 << i)) ?
|
|
SES_OBJSTAT_UNKNOWN :
|
|
SES_OBJSTAT_NOTINSTALLED;
|
|
}
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
goto out;
|
|
}
|
|
|
|
/* SEMB SEND DIAGNOSTIC (2) */
|
|
if (ccb->ataio.cmd.lba_low == 0x82 &&
|
|
ccb->ataio.cmd.features == 0x02 &&
|
|
ccb->ataio.cmd.sector_count >= (3 + enc->channels)) {
|
|
ads0 = &page->elements[0].array_dev_slot;
|
|
for (i = 0; i < enc->channels; i++) {
|
|
ads = &page->elements[i + 1].array_dev_slot;
|
|
if (ads->common.bytes[0] & SESCTL_CSEL) {
|
|
enc->status[i][0] = 0;
|
|
enc->status[i][1] =
|
|
ads->bytes[0] & 0x02;
|
|
enc->status[i][2] =
|
|
ads->bytes[1] & (0x80 | SESCTL_RQSID);
|
|
enc->status[i][3] =
|
|
ads->bytes[2] & SESCTL_RQSFLT;
|
|
ahci_em_setleds(dev, i);
|
|
} else if (ads0->common.bytes[0] & SESCTL_CSEL) {
|
|
enc->status[i][0] = 0;
|
|
enc->status[i][1] =
|
|
ads0->bytes[0] & 0x02;
|
|
enc->status[i][2] =
|
|
ads0->bytes[1] & (0x80 | SESCTL_RQSID);
|
|
enc->status[i][3] =
|
|
ads0->bytes[2] & SESCTL_RQSFLT;
|
|
ahci_em_setleds(dev, i);
|
|
}
|
|
}
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
goto out;
|
|
}
|
|
|
|
/* SEMB RECEIVE DIAGNOSTIC RESULT (7) */
|
|
if (ccb->ataio.cmd.lba_low == 0x02 &&
|
|
ccb->ataio.cmd.features == 0x07 &&
|
|
ccb->ataio.cmd.sector_count >= (3 + 3 * enc->channels)) {
|
|
bzero(buf, ccb->ataio.dxfer_len);
|
|
page->hdr.page_code = 0x07;
|
|
scsi_ulto2b(4 + 4 + 12 * enc->channels,
|
|
page->hdr.length);
|
|
for (i = 0; i < enc->channels; i++) {
|
|
elmd = (struct ses_elm_desc_hdr *)&buf[8 + 4 + 12 * i];
|
|
scsi_ulto2b(8, elmd->length);
|
|
snprintf((char *)(elmd + 1), 9, "SLOT %03d", i);
|
|
}
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
goto out;
|
|
}
|
|
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
out:
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
static void
|
|
ahci_em_begin_transaction(device_t dev, union ccb *ccb)
|
|
{
|
|
struct ahci_enclosure *enc;
|
|
struct ata_res *res;
|
|
|
|
enc = device_get_softc(dev);
|
|
res = &ccb->ataio.res;
|
|
bzero(res, sizeof(*res));
|
|
if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
|
|
(ccb->ataio.cmd.control & ATA_A_RESET)) {
|
|
res->lba_high = 0xc3;
|
|
res->lba_mid = 0x3c;
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
if (enc->capsem & AHCI_EM_LED) {
|
|
ahci_em_emulate_ses_on_led(dev, ccb);
|
|
return;
|
|
} else
|
|
device_printf(dev, "Unsupported enclosure interface\n");
|
|
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
static void
|
|
ahciemaction(struct cam_sim *sim, union ccb *ccb)
|
|
{
|
|
device_t dev, parent;
|
|
struct ahci_enclosure *enc;
|
|
|
|
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
|
|
("ahciemaction func_code=%x\n", ccb->ccb_h.func_code));
|
|
|
|
enc = cam_sim_softc(sim);
|
|
dev = enc->dev;
|
|
switch (ccb->ccb_h.func_code) {
|
|
case XPT_ATA_IO: /* Execute the requested I/O operation */
|
|
if (ahci_check_ids(ccb))
|
|
return;
|
|
ahci_em_begin_transaction(dev, ccb);
|
|
return;
|
|
case XPT_RESET_BUS: /* Reset the specified bus */
|
|
case XPT_RESET_DEV: /* Bus Device Reset the specified device */
|
|
ahci_em_reset(dev);
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
break;
|
|
case XPT_PATH_INQ: /* Path routing inquiry */
|
|
{
|
|
struct ccb_pathinq *cpi = &ccb->cpi;
|
|
|
|
parent = device_get_parent(dev);
|
|
cpi->version_num = 1; /* XXX??? */
|
|
cpi->hba_inquiry = PI_SDTR_ABLE;
|
|
cpi->target_sprt = 0;
|
|
cpi->hba_misc = PIM_SEQSCAN;
|
|
cpi->hba_eng_cnt = 0;
|
|
cpi->max_target = 0;
|
|
cpi->max_lun = 0;
|
|
cpi->initiator_id = 0;
|
|
cpi->bus_id = cam_sim_bus(sim);
|
|
cpi->base_transfer_speed = 150000;
|
|
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
|
|
strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN);
|
|
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
|
|
cpi->unit_number = cam_sim_unit(sim);
|
|
cpi->transport = XPORT_SATA;
|
|
cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
|
|
cpi->protocol = PROTO_ATA;
|
|
cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
|
|
cpi->maxio = MAXPHYS;
|
|
cpi->hba_vendor = pci_get_vendor(parent);
|
|
cpi->hba_device = pci_get_device(parent);
|
|
cpi->hba_subvendor = pci_get_subvendor(parent);
|
|
cpi->hba_subdevice = pci_get_subdevice(parent);
|
|
cpi->ccb_h.status = CAM_REQ_CMP;
|
|
break;
|
|
}
|
|
default:
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
break;
|
|
}
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
static void
|
|
ahciempoll(struct cam_sim *sim)
|
|
{
|
|
|
|
}
|