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freebsd-dev/sys/dev/isp/isp_freebsd.c
Pawel Biernacki 7029da5c36 Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE.  All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by:	kib (mentor, blanket)
Commented by:	kib, gallatin, melifaro
Differential Revision:	https://reviews.freebsd.org/D23718
2020-02-26 14:26:36 +00:00

4330 lines
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2009-2017 Alexander Motin <mav@FreeBSD.org>
* Copyright (c) 1997-2009 by Matthew Jacob
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. 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.
*/
/*
* Platform (FreeBSD) dependent common attachment code for Qlogic adapters.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <dev/isp/isp_freebsd.h>
#include <sys/unistd.h>
#include <sys/kthread.h>
#include <sys/conf.h>
#include <sys/module.h>
#include <sys/ioccom.h>
#include <dev/isp/isp_ioctl.h>
#include <sys/devicestat.h>
#include <cam/cam_periph.h>
#include <cam/cam_xpt_periph.h>
MODULE_VERSION(isp, 1);
MODULE_DEPEND(isp, cam, 1, 1, 1);
int isp_announced = 0;
int isp_loop_down_limit = 60; /* default loop down limit */
int isp_quickboot_time = 7; /* don't wait more than N secs for loop up */
int isp_gone_device_time = 30; /* grace time before reporting device lost */
static const char prom3[] = "Chan %d [%u] PortID 0x%06x Departed because of %s";
static void isp_freeze_loopdown(ispsoftc_t *, int);
static void isp_loop_changed(ispsoftc_t *isp, int chan);
static d_ioctl_t ispioctl;
static void isp_cam_async(void *, uint32_t, struct cam_path *, void *);
static void isp_poll(struct cam_sim *);
static callout_func_t isp_watchdog;
static callout_func_t isp_gdt;
static task_fn_t isp_gdt_task;
static void isp_kthread(void *);
static void isp_action(struct cam_sim *, union ccb *);
static int isp_timer_count;
static void isp_timer(void *);
static struct cdevsw isp_cdevsw = {
.d_version = D_VERSION,
.d_ioctl = ispioctl,
.d_name = "isp",
};
static int
isp_role_sysctl(SYSCTL_HANDLER_ARGS)
{
ispsoftc_t *isp = (ispsoftc_t *)arg1;
int chan = arg2;
int error, old, value;
value = FCPARAM(isp, chan)->role;
error = sysctl_handle_int(oidp, &value, 0, req);
if ((error != 0) || (req->newptr == NULL))
return (error);
if (value < ISP_ROLE_NONE || value > ISP_ROLE_BOTH)
return (EINVAL);
ISP_LOCK(isp);
old = FCPARAM(isp, chan)->role;
/* We don't allow target mode switch from here. */
value = (old & ISP_ROLE_TARGET) | (value & ISP_ROLE_INITIATOR);
/* If nothing has changed -- we are done. */
if (value == old) {
ISP_UNLOCK(isp);
return (0);
}
/* Actually change the role. */
error = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, value);
ISP_UNLOCK(isp);
return (error);
}
static int
isp_attach_chan(ispsoftc_t *isp, struct cam_devq *devq, int chan)
{
struct ccb_setasync csa;
struct cam_sim *sim;
struct cam_path *path;
#ifdef ISP_TARGET_MODE
int i;
#endif
sim = cam_sim_alloc(isp_action, isp_poll, "isp", isp,
device_get_unit(isp->isp_dev), &isp->isp_lock,
isp->isp_maxcmds, isp->isp_maxcmds, devq);
if (sim == NULL)
return (ENOMEM);
ISP_LOCK(isp);
if (xpt_bus_register(sim, isp->isp_dev, chan) != CAM_SUCCESS) {
ISP_UNLOCK(isp);
cam_sim_free(sim, FALSE);
return (EIO);
}
ISP_UNLOCK(isp);
if (xpt_create_path(&path, NULL, cam_sim_path(sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
ISP_LOCK(isp);
xpt_bus_deregister(cam_sim_path(sim));
ISP_UNLOCK(isp);
cam_sim_free(sim, FALSE);
return (ENXIO);
}
xpt_setup_ccb(&csa.ccb_h, path, 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_LOST_DEVICE;
csa.callback = isp_cam_async;
csa.callback_arg = sim;
ISP_LOCK(isp);
xpt_action((union ccb *)&csa);
ISP_UNLOCK(isp);
if (IS_SCSI(isp)) {
struct isp_spi *spi = ISP_SPI_PC(isp, chan);
spi->sim = sim;
spi->path = path;
#ifdef ISP_TARGET_MODE
TAILQ_INIT(&spi->waitq);
STAILQ_INIT(&spi->ntfree);
for (i = 0; i < ATPDPSIZE; i++)
STAILQ_INSERT_TAIL(&spi->ntfree, &spi->ntpool[i], next);
LIST_INIT(&spi->atfree);
for (i = ATPDPSIZE-1; i >= 0; i--)
LIST_INSERT_HEAD(&spi->atfree, &spi->atpool[i], next);
for (i = 0; i < ATPDPHASHSIZE; i++)
LIST_INIT(&spi->atused[i]);
#endif
} else {
fcparam *fcp = FCPARAM(isp, chan);
struct isp_fc *fc = ISP_FC_PC(isp, chan);
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(isp->isp_osinfo.dev);
struct sysctl_oid *tree = device_get_sysctl_tree(isp->isp_osinfo.dev);
char name[16];
ISP_LOCK(isp);
fc->sim = sim;
fc->path = path;
fc->isp = isp;
fc->ready = 1;
fcp->isp_use_gft_id = 1;
fcp->isp_use_gff_id = 1;
callout_init_mtx(&fc->gdt, &isp->isp_lock, 0);
TASK_INIT(&fc->gtask, 1, isp_gdt_task, fc);
#ifdef ISP_TARGET_MODE
TAILQ_INIT(&fc->waitq);
STAILQ_INIT(&fc->ntfree);
for (i = 0; i < ATPDPSIZE; i++)
STAILQ_INSERT_TAIL(&fc->ntfree, &fc->ntpool[i], next);
LIST_INIT(&fc->atfree);
for (i = ATPDPSIZE-1; i >= 0; i--)
LIST_INSERT_HEAD(&fc->atfree, &fc->atpool[i], next);
for (i = 0; i < ATPDPHASHSIZE; i++)
LIST_INIT(&fc->atused[i]);
#endif
isp_loop_changed(isp, chan);
ISP_UNLOCK(isp);
if (kproc_create(isp_kthread, fc, &fc->kproc, 0, 0,
"%s_%d", device_get_nameunit(isp->isp_osinfo.dev), chan)) {
xpt_free_path(fc->path);
ISP_LOCK(isp);
xpt_bus_deregister(cam_sim_path(fc->sim));
ISP_UNLOCK(isp);
cam_sim_free(fc->sim, FALSE);
return (ENOMEM);
}
fc->num_threads += 1;
if (chan > 0) {
snprintf(name, sizeof(name), "chan%d", chan);
tree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree),
OID_AUTO, name, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"Virtual channel");
}
SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"wwnn", CTLFLAG_RD, &fcp->isp_wwnn,
"World Wide Node Name");
SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"wwpn", CTLFLAG_RD, &fcp->isp_wwpn,
"World Wide Port Name");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"loop_down_limit", CTLFLAG_RW, &fc->loop_down_limit, 0,
"Loop Down Limit");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"gone_device_time", CTLFLAG_RW, &fc->gone_device_time, 0,
"Gone Device Time");
#if defined(ISP_TARGET_MODE) && defined(DEBUG)
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"inject_lost_data_frame", CTLFLAG_RW, &fc->inject_lost_data_frame, 0,
"Cause a Lost Frame on a Read");
#endif
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"role", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
isp, chan, isp_role_sysctl, "I", "Current role");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"speed", CTLFLAG_RD, &fcp->isp_gbspeed, 0,
"Connection speed in gigabits");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"linkstate", CTLFLAG_RD, &fcp->isp_linkstate, 0,
"Link state");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"fwstate", CTLFLAG_RD, &fcp->isp_fwstate, 0,
"Firmware state");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"loopstate", CTLFLAG_RD, &fcp->isp_loopstate, 0,
"Loop state");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"topo", CTLFLAG_RD, &fcp->isp_topo, 0,
"Connection topology");
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"use_gft_id", CTLFLAG_RWTUN, &fcp->isp_use_gft_id, 0,
"Use GFT_ID during fabric scan");
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"use_gff_id", CTLFLAG_RWTUN, &fcp->isp_use_gff_id, 0,
"Use GFF_ID during fabric scan");
}
return (0);
}
static void
isp_detach_chan(ispsoftc_t *isp, int chan)
{
struct cam_sim *sim;
struct cam_path *path;
struct ccb_setasync csa;
int *num_threads;
ISP_GET_PC(isp, chan, sim, sim);
ISP_GET_PC(isp, chan, path, path);
ISP_GET_PC_ADDR(isp, chan, num_threads, num_threads);
xpt_setup_ccb(&csa.ccb_h, path, 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = 0;
csa.callback = isp_cam_async;
csa.callback_arg = sim;
xpt_action((union ccb *)&csa);
xpt_free_path(path);
xpt_bus_deregister(cam_sim_path(sim));
cam_sim_free(sim, FALSE);
/* Wait for the channel's spawned threads to exit. */
wakeup(isp->isp_osinfo.pc.ptr);
while (*num_threads != 0)
mtx_sleep(isp, &isp->isp_lock, PRIBIO, "isp_reap", 100);
}
int
isp_attach(ispsoftc_t *isp)
{
const char *nu = device_get_nameunit(isp->isp_osinfo.dev);
int du = device_get_unit(isp->isp_dev);
int chan;
/*
* Create the device queue for our SIM(s).
*/
isp->isp_osinfo.devq = cam_simq_alloc(isp->isp_maxcmds);
if (isp->isp_osinfo.devq == NULL) {
return (EIO);
}
for (chan = 0; chan < isp->isp_nchan; chan++) {
if (isp_attach_chan(isp, isp->isp_osinfo.devq, chan)) {
goto unwind;
}
}
callout_init_mtx(&isp->isp_osinfo.tmo, &isp->isp_lock, 0);
isp_timer_count = hz >> 2;
callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
isp->isp_osinfo.cdev = make_dev(&isp_cdevsw, du, UID_ROOT, GID_OPERATOR, 0600, "%s", nu);
if (isp->isp_osinfo.cdev) {
isp->isp_osinfo.cdev->si_drv1 = isp;
}
return (0);
unwind:
while (--chan >= 0) {
struct cam_sim *sim;
struct cam_path *path;
ISP_GET_PC(isp, chan, sim, sim);
ISP_GET_PC(isp, chan, path, path);
xpt_free_path(path);
ISP_LOCK(isp);
xpt_bus_deregister(cam_sim_path(sim));
ISP_UNLOCK(isp);
cam_sim_free(sim, FALSE);
}
cam_simq_free(isp->isp_osinfo.devq);
isp->isp_osinfo.devq = NULL;
return (-1);
}
int
isp_detach(ispsoftc_t *isp)
{
int chan;
if (isp->isp_osinfo.cdev) {
destroy_dev(isp->isp_osinfo.cdev);
isp->isp_osinfo.cdev = NULL;
}
ISP_LOCK(isp);
/* Tell spawned threads that we're exiting. */
isp->isp_osinfo.is_exiting = 1;
for (chan = isp->isp_nchan - 1; chan >= 0; chan -= 1)
isp_detach_chan(isp, chan);
ISP_UNLOCK(isp);
callout_drain(&isp->isp_osinfo.tmo);
cam_simq_free(isp->isp_osinfo.devq);
return (0);
}
static void
isp_freeze_loopdown(ispsoftc_t *isp, int chan)
{
struct isp_fc *fc = ISP_FC_PC(isp, chan);
if (fc->sim == NULL)
return;
if (fc->simqfrozen == 0) {
isp_prt(isp, ISP_LOGDEBUG0,
"Chan %d Freeze simq (loopdown)", chan);
fc->simqfrozen = SIMQFRZ_LOOPDOWN;
xpt_hold_boot();
xpt_freeze_simq(fc->sim, 1);
} else {
isp_prt(isp, ISP_LOGDEBUG0,
"Chan %d Mark simq frozen (loopdown)", chan);
fc->simqfrozen |= SIMQFRZ_LOOPDOWN;
}
}
static void
isp_unfreeze_loopdown(ispsoftc_t *isp, int chan)
{
struct isp_fc *fc = ISP_FC_PC(isp, chan);
if (fc->sim == NULL)
return;
int wasfrozen = fc->simqfrozen & SIMQFRZ_LOOPDOWN;
fc->simqfrozen &= ~SIMQFRZ_LOOPDOWN;
if (wasfrozen && fc->simqfrozen == 0) {
isp_prt(isp, ISP_LOGDEBUG0,
"Chan %d Release simq", chan);
xpt_release_simq(fc->sim, 1);
xpt_release_boot();
}
}
static int
ispioctl(struct cdev *dev, u_long c, caddr_t addr, int flags, struct thread *td)
{
ispsoftc_t *isp;
int nr, chan, retval = ENOTTY;
isp = dev->si_drv1;
switch (c) {
case ISP_SDBLEV:
{
int olddblev = isp->isp_dblev;
isp->isp_dblev = *(int *)addr;
*(int *)addr = olddblev;
retval = 0;
break;
}
case ISP_GETROLE:
chan = *(int *)addr;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
if (IS_FC(isp)) {
*(int *)addr = FCPARAM(isp, chan)->role;
} else {
*(int *)addr = ISP_ROLE_INITIATOR;
}
retval = 0;
break;
case ISP_SETROLE:
if (IS_SCSI(isp))
break;
nr = *(int *)addr;
chan = nr >> 8;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
nr &= 0xff;
if (nr & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) {
retval = EINVAL;
break;
}
ISP_LOCK(isp);
*(int *)addr = FCPARAM(isp, chan)->role;
retval = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, nr);
ISP_UNLOCK(isp);
retval = 0;
break;
case ISP_RESETHBA:
ISP_LOCK(isp);
isp_reinit(isp, 0);
ISP_UNLOCK(isp);
retval = 0;
break;
case ISP_RESCAN:
if (IS_FC(isp)) {
chan = *(intptr_t *)addr;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
ISP_LOCK(isp);
if (isp_fc_runstate(isp, chan, 5 * 1000000) != LOOP_READY) {
retval = EIO;
} else {
retval = 0;
}
ISP_UNLOCK(isp);
}
break;
case ISP_FC_LIP:
if (IS_FC(isp)) {
chan = *(intptr_t *)addr;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
ISP_LOCK(isp);
if (isp_control(isp, ISPCTL_SEND_LIP, chan)) {
retval = EIO;
} else {
retval = 0;
}
ISP_UNLOCK(isp);
}
break;
case ISP_FC_GETDINFO:
{
struct isp_fc_device *ifc = (struct isp_fc_device *) addr;
fcportdb_t *lp;
if (IS_SCSI(isp)) {
break;
}
if (ifc->loopid >= MAX_FC_TARG) {
retval = EINVAL;
break;
}
lp = &FCPARAM(isp, ifc->chan)->portdb[ifc->loopid];
if (lp->state != FC_PORTDB_STATE_NIL) {
ifc->role = (lp->prli_word3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
ifc->loopid = lp->handle;
ifc->portid = lp->portid;
ifc->node_wwn = lp->node_wwn;
ifc->port_wwn = lp->port_wwn;
retval = 0;
} else {
retval = ENODEV;
}
break;
}
case ISP_FC_GETHINFO:
{
struct isp_hba_device *hba = (struct isp_hba_device *) addr;
int chan = hba->fc_channel;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = ENXIO;
break;
}
hba->fc_fw_major = ISP_FW_MAJORX(isp->isp_fwrev);
hba->fc_fw_minor = ISP_FW_MINORX(isp->isp_fwrev);
hba->fc_fw_micro = ISP_FW_MICROX(isp->isp_fwrev);
hba->fc_nchannels = isp->isp_nchan;
if (IS_FC(isp)) {
hba->fc_nports = MAX_FC_TARG;
hba->fc_speed = FCPARAM(isp, hba->fc_channel)->isp_gbspeed;
hba->fc_topology = FCPARAM(isp, chan)->isp_topo + 1;
hba->fc_loopid = FCPARAM(isp, chan)->isp_loopid;
hba->nvram_node_wwn = FCPARAM(isp, chan)->isp_wwnn_nvram;
hba->nvram_port_wwn = FCPARAM(isp, chan)->isp_wwpn_nvram;
hba->active_node_wwn = FCPARAM(isp, chan)->isp_wwnn;
hba->active_port_wwn = FCPARAM(isp, chan)->isp_wwpn;
} else {
hba->fc_nports = MAX_TARGETS;
hba->fc_speed = 0;
hba->fc_topology = 0;
hba->nvram_node_wwn = 0ull;
hba->nvram_port_wwn = 0ull;
hba->active_node_wwn = 0ull;
hba->active_port_wwn = 0ull;
}
retval = 0;
break;
}
case ISP_TSK_MGMT:
{
int needmarker;
struct isp_fc_tsk_mgmt *fct = (struct isp_fc_tsk_mgmt *) addr;
uint16_t nphdl;
mbreg_t mbs;
if (IS_SCSI(isp)) {
break;
}
chan = fct->chan;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
needmarker = retval = 0;
nphdl = fct->loopid;
ISP_LOCK(isp);
if (IS_24XX(isp)) {
void *reqp;
uint8_t resp[QENTRY_LEN];
isp24xx_tmf_t tmf;
isp24xx_statusreq_t sp;
fcparam *fcp = FCPARAM(isp, chan);
fcportdb_t *lp;
int i;
for (i = 0; i < MAX_FC_TARG; i++) {
lp = &fcp->portdb[i];
if (lp->handle == nphdl) {
break;
}
}
if (i == MAX_FC_TARG) {
retval = ENXIO;
ISP_UNLOCK(isp);
break;
}
ISP_MEMZERO(&tmf, sizeof(tmf));
tmf.tmf_header.rqs_entry_type = RQSTYPE_TSK_MGMT;
tmf.tmf_header.rqs_entry_count = 1;
tmf.tmf_nphdl = lp->handle;
tmf.tmf_delay = 2;
tmf.tmf_timeout = 4;
tmf.tmf_tidlo = lp->portid;
tmf.tmf_tidhi = lp->portid >> 16;
tmf.tmf_vpidx = ISP_GET_VPIDX(isp, chan);
tmf.tmf_lun[1] = fct->lun & 0xff;
if (fct->lun >= 256) {
tmf.tmf_lun[0] = 0x40 | (fct->lun >> 8);
}
switch (fct->action) {
case IPT_CLEAR_ACA:
tmf.tmf_flags = ISP24XX_TMF_CLEAR_ACA;
break;
case IPT_TARGET_RESET:
tmf.tmf_flags = ISP24XX_TMF_TARGET_RESET;
needmarker = 1;
break;
case IPT_LUN_RESET:
tmf.tmf_flags = ISP24XX_TMF_LUN_RESET;
needmarker = 1;
break;
case IPT_CLEAR_TASK_SET:
tmf.tmf_flags = ISP24XX_TMF_CLEAR_TASK_SET;
needmarker = 1;
break;
case IPT_ABORT_TASK_SET:
tmf.tmf_flags = ISP24XX_TMF_ABORT_TASK_SET;
needmarker = 1;
break;
default:
retval = EINVAL;
break;
}
if (retval) {
ISP_UNLOCK(isp);
break;
}
/* Prepare space for response in memory */
memset(resp, 0xff, sizeof(resp));
tmf.tmf_handle = isp_allocate_handle(isp, resp,
ISP_HANDLE_CTRL);
if (tmf.tmf_handle == 0) {
isp_prt(isp, ISP_LOGERR,
"%s: TMF of Chan %d out of handles",
__func__, chan);
ISP_UNLOCK(isp);
retval = ENOMEM;
break;
}
/* Send request and wait for response. */
reqp = isp_getrqentry(isp);
if (reqp == NULL) {
isp_prt(isp, ISP_LOGERR,
"%s: TMF of Chan %d out of rqent",
__func__, chan);
isp_destroy_handle(isp, tmf.tmf_handle);
ISP_UNLOCK(isp);
retval = EIO;
break;
}
isp_put_24xx_tmf(isp, &tmf, (isp24xx_tmf_t *)reqp);
if (isp->isp_dblev & ISP_LOGDEBUG1)
isp_print_bytes(isp, "IOCB TMF", QENTRY_LEN, reqp);
ISP_SYNC_REQUEST(isp);
if (msleep(resp, &isp->isp_lock, 0, "TMF", 5*hz) == EWOULDBLOCK) {
isp_prt(isp, ISP_LOGERR,
"%s: TMF of Chan %d timed out",
__func__, chan);
isp_destroy_handle(isp, tmf.tmf_handle);
ISP_UNLOCK(isp);
retval = EIO;
break;
}
if (isp->isp_dblev & ISP_LOGDEBUG1)
isp_print_bytes(isp, "IOCB TMF response", QENTRY_LEN, resp);
isp_get_24xx_response(isp, (isp24xx_statusreq_t *)resp, &sp);
if (sp.req_completion_status != 0)
retval = EIO;
else if (needmarker)
fcp->sendmarker = 1;
} else {
MBSINIT(&mbs, 0, MBLOGALL, 0);
if (ISP_CAP_2KLOGIN(isp) == 0) {
nphdl <<= 8;
}
switch (fct->action) {
case IPT_CLEAR_ACA:
mbs.param[0] = MBOX_CLEAR_ACA;
mbs.param[1] = nphdl;
mbs.param[2] = fct->lun;
break;
case IPT_TARGET_RESET:
mbs.param[0] = MBOX_TARGET_RESET;
mbs.param[1] = nphdl;
needmarker = 1;
break;
case IPT_LUN_RESET:
mbs.param[0] = MBOX_LUN_RESET;
mbs.param[1] = nphdl;
mbs.param[2] = fct->lun;
needmarker = 1;
break;
case IPT_CLEAR_TASK_SET:
mbs.param[0] = MBOX_CLEAR_TASK_SET;
mbs.param[1] = nphdl;
mbs.param[2] = fct->lun;
needmarker = 1;
break;
case IPT_ABORT_TASK_SET:
mbs.param[0] = MBOX_ABORT_TASK_SET;
mbs.param[1] = nphdl;
mbs.param[2] = fct->lun;
needmarker = 1;
break;
default:
retval = EINVAL;
break;
}
if (retval == 0) {
if (needmarker) {
FCPARAM(isp, chan)->sendmarker = 1;
}
retval = isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs);
if (retval) {
retval = EIO;
}
}
}
ISP_UNLOCK(isp);
break;
}
default:
break;
}
return (retval);
}
/*
* Local Inlines
*/
static ISP_INLINE int isp_get_pcmd(ispsoftc_t *, union ccb *);
static ISP_INLINE void isp_free_pcmd(ispsoftc_t *, union ccb *);
static ISP_INLINE int
isp_get_pcmd(ispsoftc_t *isp, union ccb *ccb)
{
ISP_PCMD(ccb) = isp->isp_osinfo.pcmd_free;
if (ISP_PCMD(ccb) == NULL) {
return (-1);
}
isp->isp_osinfo.pcmd_free = ((struct isp_pcmd *)ISP_PCMD(ccb))->next;
return (0);
}
static ISP_INLINE void
isp_free_pcmd(ispsoftc_t *isp, union ccb *ccb)
{
if (ISP_PCMD(ccb)) {
#ifdef ISP_TARGET_MODE
PISP_PCMD(ccb)->datalen = 0;
#endif
PISP_PCMD(ccb)->next = isp->isp_osinfo.pcmd_free;
isp->isp_osinfo.pcmd_free = ISP_PCMD(ccb);
ISP_PCMD(ccb) = NULL;
}
}
/*
* Put the target mode functions here, because some are inlines
*/
#ifdef ISP_TARGET_MODE
static ISP_INLINE tstate_t *get_lun_statep(ispsoftc_t *, int, lun_id_t);
static atio_private_data_t *isp_get_atpd(ispsoftc_t *, int, uint32_t);
static atio_private_data_t *isp_find_atpd(ispsoftc_t *, int, uint32_t);
static void isp_put_atpd(ispsoftc_t *, int, atio_private_data_t *);
static inot_private_data_t *isp_get_ntpd(ispsoftc_t *, int);
static inot_private_data_t *isp_find_ntpd(ispsoftc_t *, int, uint32_t, uint32_t);
static void isp_put_ntpd(ispsoftc_t *, int, inot_private_data_t *);
static cam_status create_lun_state(ispsoftc_t *, int, struct cam_path *, tstate_t **);
static void destroy_lun_state(ispsoftc_t *, int, tstate_t *);
static void isp_enable_lun(ispsoftc_t *, union ccb *);
static void isp_disable_lun(ispsoftc_t *, union ccb *);
static callout_func_t isp_refire_putback_atio;
static callout_func_t isp_refire_notify_ack;
static void isp_complete_ctio(union ccb *);
static void isp_target_putback_atio(union ccb *);
enum Start_Ctio_How { FROM_CAM, FROM_TIMER, FROM_SRR, FROM_CTIO_DONE };
static void isp_target_start_ctio(ispsoftc_t *, union ccb *, enum Start_Ctio_How);
static void isp_handle_platform_atio2(ispsoftc_t *, at2_entry_t *);
static void isp_handle_platform_atio7(ispsoftc_t *, at7_entry_t *);
static void isp_handle_platform_ctio(ispsoftc_t *, void *);
static int isp_handle_platform_target_notify_ack(ispsoftc_t *, isp_notify_t *, uint32_t rsp);
static void isp_handle_platform_target_tmf(ispsoftc_t *, isp_notify_t *);
static void isp_target_mark_aborted_early(ispsoftc_t *, int chan, tstate_t *, uint32_t);
static ISP_INLINE tstate_t *
get_lun_statep(ispsoftc_t *isp, int bus, lun_id_t lun)
{
tstate_t *tptr = NULL;
struct tslist *lhp;
if (bus < isp->isp_nchan) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
SLIST_FOREACH(tptr, lhp, next) {
if (tptr->ts_lun == lun)
return (tptr);
}
}
return (NULL);
}
static int
isp_atio_restart(ispsoftc_t *isp, int bus, tstate_t *tptr)
{
inot_private_data_t *ntp;
struct ntpdlist rq;
if (STAILQ_EMPTY(&tptr->restart_queue))
return (0);
STAILQ_INIT(&rq);
STAILQ_CONCAT(&rq, &tptr->restart_queue);
while ((ntp = STAILQ_FIRST(&rq)) != NULL) {
STAILQ_REMOVE_HEAD(&rq, next);
if (IS_24XX(isp)) {
isp_prt(isp, ISP_LOGTDEBUG0,
"%s: restarting resrc deprived %x", __func__,
((at7_entry_t *)ntp->data)->at_rxid);
isp_handle_platform_atio7(isp, (at7_entry_t *) ntp->data);
} else {
isp_prt(isp, ISP_LOGTDEBUG0,
"%s: restarting resrc deprived %x", __func__,
((at2_entry_t *)ntp->data)->at_rxid);
isp_handle_platform_atio2(isp, (at2_entry_t *) ntp->data);
}
isp_put_ntpd(isp, bus, ntp);
if (!STAILQ_EMPTY(&tptr->restart_queue))
break;
}
if (!STAILQ_EMPTY(&rq)) {
STAILQ_CONCAT(&rq, &tptr->restart_queue);
STAILQ_CONCAT(&tptr->restart_queue, &rq);
}
return (!STAILQ_EMPTY(&tptr->restart_queue));
}
static void
isp_tmcmd_restart(ispsoftc_t *isp)
{
tstate_t *tptr;
union ccb *ccb;
struct tslist *lhp;
struct isp_ccbq *waitq;
int bus, i;
for (bus = 0; bus < isp->isp_nchan; bus++) {
for (i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
SLIST_FOREACH(tptr, lhp, next)
isp_atio_restart(isp, bus, tptr);
}
/*
* We only need to do this once per channel.
*/
ISP_GET_PC_ADDR(isp, bus, waitq, waitq);
ccb = (union ccb *)TAILQ_FIRST(waitq);
if (ccb != NULL) {
TAILQ_REMOVE(waitq, &ccb->ccb_h, sim_links.tqe);
isp_target_start_ctio(isp, ccb, FROM_TIMER);
}
}
}
static atio_private_data_t *
isp_get_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
{
struct atpdlist *atfree;
struct atpdlist *atused;
atio_private_data_t *atp;
ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
atp = LIST_FIRST(atfree);
if (atp) {
LIST_REMOVE(atp, next);
atp->tag = tag;
ISP_GET_PC(isp, chan, atused, atused);
LIST_INSERT_HEAD(&atused[ATPDPHASH(tag)], atp, next);
}
return (atp);
}
static atio_private_data_t *
isp_find_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
{
struct atpdlist *atused;
atio_private_data_t *atp;
ISP_GET_PC(isp, chan, atused, atused);
LIST_FOREACH(atp, &atused[ATPDPHASH(tag)], next) {
if (atp->tag == tag)
return (atp);
}
return (NULL);
}
static void
isp_put_atpd(ispsoftc_t *isp, int chan, atio_private_data_t *atp)
{
struct atpdlist *atfree;
if (atp->ests) {
isp_put_ecmd(isp, atp->ests);
}
LIST_REMOVE(atp, next);
memset(atp, 0, sizeof (*atp));
ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
LIST_INSERT_HEAD(atfree, atp, next);
}
static void
isp_dump_atpd(ispsoftc_t *isp, int chan)
{
atio_private_data_t *atp, *atpool;
const char *states[8] = { "Free", "ATIO", "CAM", "CTIO", "LAST_CTIO", "PDON", "?6", "7" };
ISP_GET_PC(isp, chan, atpool, atpool);
for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
if (atp->state == ATPD_STATE_FREE)
continue;
isp_prt(isp, ISP_LOGALL, "Chan %d ATP [0x%x] origdlen %u bytes_xfrd %u lun %jx nphdl 0x%04x s_id 0x%06x d_id 0x%06x oxid 0x%04x state %s",
chan, atp->tag, atp->orig_datalen, atp->bytes_xfered, (uintmax_t)atp->lun, atp->nphdl, atp->sid, atp->did, atp->oxid, states[atp->state & 0x7]);
}
}
static inot_private_data_t *
isp_get_ntpd(ispsoftc_t *isp, int chan)
{
struct ntpdlist *ntfree;
inot_private_data_t *ntp;
ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
ntp = STAILQ_FIRST(ntfree);
if (ntp)
STAILQ_REMOVE_HEAD(ntfree, next);
return (ntp);
}
static inot_private_data_t *
isp_find_ntpd(ispsoftc_t *isp, int chan, uint32_t tag_id, uint32_t seq_id)
{
inot_private_data_t *ntp, *ntp2;
ISP_GET_PC(isp, chan, ntpool, ntp);
ISP_GET_PC_ADDR(isp, chan, ntpool[ATPDPSIZE], ntp2);
for (; ntp < ntp2; ntp++) {
if (ntp->tag_id == tag_id && ntp->seq_id == seq_id)
return (ntp);
}
return (NULL);
}
static void
isp_put_ntpd(ispsoftc_t *isp, int chan, inot_private_data_t *ntp)
{
struct ntpdlist *ntfree;
ntp->tag_id = ntp->seq_id = 0;
ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
STAILQ_INSERT_HEAD(ntfree, ntp, next);
}
static cam_status
create_lun_state(ispsoftc_t *isp, int bus, struct cam_path *path, tstate_t **rslt)
{
lun_id_t lun;
struct tslist *lhp;
tstate_t *tptr;
lun = xpt_path_lun_id(path);
if (lun != CAM_LUN_WILDCARD) {
if (ISP_MAX_LUNS(isp) > 0 && lun >= ISP_MAX_LUNS(isp)) {
return (CAM_LUN_INVALID);
}
}
tptr = malloc(sizeof (tstate_t), M_DEVBUF, M_NOWAIT|M_ZERO);
if (tptr == NULL) {
return (CAM_RESRC_UNAVAIL);
}
tptr->ts_lun = lun;
SLIST_INIT(&tptr->atios);
SLIST_INIT(&tptr->inots);
STAILQ_INIT(&tptr->restart_queue);
ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
SLIST_INSERT_HEAD(lhp, tptr, next);
*rslt = tptr;
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, path, "created tstate\n");
return (CAM_REQ_CMP);
}
static void
destroy_lun_state(ispsoftc_t *isp, int bus, tstate_t *tptr)
{
union ccb *ccb;
struct tslist *lhp;
inot_private_data_t *ntp;
while ((ccb = (union ccb *)SLIST_FIRST(&tptr->atios)) != NULL) {
SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
ccb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(ccb);
};
while ((ccb = (union ccb *)SLIST_FIRST(&tptr->inots)) != NULL) {
SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
ccb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(ccb);
}
while ((ntp = STAILQ_FIRST(&tptr->restart_queue)) != NULL) {
isp_endcmd(isp, ntp->data, NIL_HANDLE, bus, SCSI_STATUS_BUSY, 0);
STAILQ_REMOVE_HEAD(&tptr->restart_queue, next);
isp_put_ntpd(isp, bus, ntp);
}
ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(tptr->ts_lun)], lhp);
SLIST_REMOVE(lhp, tptr, tstate, next);
free(tptr, M_DEVBUF);
}
static void
isp_enable_lun(ispsoftc_t *isp, union ccb *ccb)
{
tstate_t *tptr;
int bus;
target_id_t target;
lun_id_t lun;
if (!IS_FC(isp) || !ISP_CAP_TMODE(isp) || !ISP_CAP_SCCFW(isp)) {
xpt_print(ccb->ccb_h.path, "Target mode is not supported\n");
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
xpt_done(ccb);
return;
}
/*
* We only support either target and lun both wildcard
* or target and lun both non-wildcard.
*/
bus = XS_CHANNEL(ccb);
target = ccb->ccb_h.target_id;
lun = ccb->ccb_h.target_lun;
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
"enabling lun %jx\n", (uintmax_t)lun);
if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
ccb->ccb_h.status = CAM_LUN_INVALID;
xpt_done(ccb);
return;
}
/* Create the state pointer. It should not already exist. */
tptr = get_lun_statep(isp, bus, lun);
if (tptr) {
ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
xpt_done(ccb);
return;
}
ccb->ccb_h.status = create_lun_state(isp, bus, ccb->ccb_h.path, &tptr);
if (ccb->ccb_h.status != CAM_REQ_CMP) {
xpt_done(ccb);
return;
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
}
static void
isp_disable_lun(ispsoftc_t *isp, union ccb *ccb)
{
tstate_t *tptr = NULL;
int bus;
target_id_t target;
lun_id_t lun;
bus = XS_CHANNEL(ccb);
target = ccb->ccb_h.target_id;
lun = ccb->ccb_h.target_lun;
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
"disabling lun %jx\n", (uintmax_t)lun);
if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
ccb->ccb_h.status = CAM_LUN_INVALID;
xpt_done(ccb);
return;
}
/* Find the state pointer. */
if ((tptr = get_lun_statep(isp, bus, lun)) == NULL) {
ccb->ccb_h.status = CAM_PATH_INVALID;
xpt_done(ccb);
return;
}
destroy_lun_state(isp, bus, tptr);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
}
static void
isp_target_start_ctio(ispsoftc_t *isp, union ccb *ccb, enum Start_Ctio_How how)
{
int fctape, sendstatus, resid;
fcparam *fcp;
atio_private_data_t *atp;
struct ccb_scsiio *cso;
struct isp_ccbq *waitq;
uint32_t dmaresult, handle, xfrlen, sense_length, tmp;
uint8_t local[QENTRY_LEN];
isp_prt(isp, ISP_LOGTDEBUG0, "%s: ENTRY[0x%x] how %u xfrlen %u sendstatus %d sense_len %u", __func__, ccb->csio.tag_id, how, ccb->csio.dxfer_len,
(ccb->ccb_h.flags & CAM_SEND_STATUS) != 0, ((ccb->ccb_h.flags & CAM_SEND_SENSE)? ccb->csio.sense_len : 0));
ISP_GET_PC_ADDR(isp, XS_CHANNEL(ccb), waitq, waitq);
switch (how) {
case FROM_CAM:
/*
* Insert at the tail of the list, if any, waiting CTIO CCBs
*/
TAILQ_INSERT_TAIL(waitq, &ccb->ccb_h, sim_links.tqe);
break;
case FROM_TIMER:
case FROM_SRR:
case FROM_CTIO_DONE:
TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
break;
}
while ((ccb = (union ccb *) TAILQ_FIRST(waitq)) != NULL) {
TAILQ_REMOVE(waitq, &ccb->ccb_h, sim_links.tqe);
cso = &ccb->csio;
xfrlen = cso->dxfer_len;
if (xfrlen == 0) {
if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
ISP_PATH_PRT(isp, ISP_LOGERR, ccb->ccb_h.path, "a data transfer length of zero but no status to send is wrong\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
continue;
}
}
atp = isp_find_atpd(isp, XS_CHANNEL(ccb), cso->tag_id);
if (atp == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] cannot find private data adjunct in %s", __func__, cso->tag_id, __func__);
isp_dump_atpd(isp, XS_CHANNEL(ccb));
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
continue;
}
/*
* Is this command a dead duck?
*/
if (atp->dead) {
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] not sending a CTIO for a dead command", __func__, cso->tag_id);
ccb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(ccb);
continue;
}
/*
* Check to make sure we're still in target mode.
*/
fcp = FCPARAM(isp, XS_CHANNEL(ccb));
if ((fcp->role & ISP_ROLE_TARGET) == 0) {
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] stopping sending a CTIO because we're no longer in target mode", __func__, cso->tag_id);
ccb->ccb_h.status = CAM_PROVIDE_FAIL;
xpt_done(ccb);
continue;
}
/*
* We're only handling ATPD_CCB_OUTSTANDING outstanding CCB at a time (one of which
* could be split into two CTIOs to split data and status).
*/
if (atp->ctcnt >= ATPD_CCB_OUTSTANDING) {
isp_prt(isp, ISP_LOGTINFO, "[0x%x] handling only %d CCBs at a time (flags for this ccb: 0x%x)", cso->tag_id, ATPD_CCB_OUTSTANDING, ccb->ccb_h.flags);
TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
break;
}
/*
* Does the initiator expect FC-Tape style responses?
*/
if ((atp->word3 & PRLI_WD3_RETRY) && fcp->fctape_enabled) {
fctape = 1;
} else {
fctape = 0;
}
/*
* If we already did the data xfer portion of a CTIO that sends data
* and status, don't do it again and do the status portion now.
*/
if (atp->sendst) {
isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] now sending synthesized status orig_dl=%u xfered=%u bit=%u",
cso->tag_id, atp->orig_datalen, atp->bytes_xfered, atp->bytes_in_transit);
xfrlen = 0; /* we already did the data transfer */
atp->sendst = 0;
}
if (ccb->ccb_h.flags & CAM_SEND_STATUS) {
sendstatus = 1;
} else {
sendstatus = 0;
}
if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
KASSERT((sendstatus != 0), ("how can you have CAM_SEND_SENSE w/o CAM_SEND_STATUS?"));
/*
* Sense length is not the entire sense data structure size. Periph
* drivers don't seem to be setting sense_len to reflect the actual
* size. We'll peek inside to get the right amount.
*/
sense_length = cso->sense_len;
/*
* This 'cannot' happen
*/
if (sense_length > (XCMD_SIZE - MIN_FCP_RESPONSE_SIZE)) {
sense_length = XCMD_SIZE - MIN_FCP_RESPONSE_SIZE;
}
} else {
sense_length = 0;
}
memset(local, 0, QENTRY_LEN);
/*
* Check for overflow
*/
tmp = atp->bytes_xfered + atp->bytes_in_transit;
if (xfrlen > 0 && tmp > atp->orig_datalen) {
isp_prt(isp, ISP_LOGERR,
"%s: [0x%x] data overflow by %u bytes", __func__,
cso->tag_id, tmp + xfrlen - atp->orig_datalen);
ccb->ccb_h.status = CAM_DATA_RUN_ERR;
xpt_done(ccb);
continue;
}
if (xfrlen > atp->orig_datalen - tmp) {
xfrlen = atp->orig_datalen - tmp;
if (xfrlen == 0 && !sendstatus) {
cso->resid = cso->dxfer_len;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
continue;
}
}
if (IS_24XX(isp)) {
ct7_entry_t *cto = (ct7_entry_t *) local;
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
cto->ct_header.rqs_entry_count = 1;
cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
ATPD_SET_SEQNO(cto, atp);
cto->ct_nphdl = atp->nphdl;
cto->ct_rxid = atp->tag;
cto->ct_iid_lo = atp->sid;
cto->ct_iid_hi = atp->sid >> 16;
cto->ct_oxid = atp->oxid;
cto->ct_vpidx = ISP_GET_VPIDX(isp, XS_CHANNEL(ccb));
cto->ct_timeout = XS_TIME(ccb);
cto->ct_flags = atp->tattr << CT7_TASK_ATTR_SHIFT;
/*
* Mode 1, status, no data. Only possible when we are sending status, have
* no data to transfer, and any sense data can fit into a ct7_entry_t.
*
* Mode 2, status, no data. We have to use this in the case that
* the sense data won't fit into a ct7_entry_t.
*
*/
if (sendstatus && xfrlen == 0) {
cto->ct_flags |= CT7_SENDSTATUS | CT7_NO_DATA;
resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
if (sense_length <= MAXRESPLEN_24XX) {
cto->ct_flags |= CT7_FLAG_MODE1;
cto->ct_scsi_status = cso->scsi_status;
if (resid < 0) {
cto->ct_resid = -resid;
cto->ct_scsi_status |= (FCP_RESID_OVERFLOW << 8);
} else if (resid > 0) {
cto->ct_resid = resid;
cto->ct_scsi_status |= (FCP_RESID_UNDERFLOW << 8);
}
if (fctape) {
cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
}
if (sense_length) {
cto->ct_scsi_status |= (FCP_SNSLEN_VALID << 8);
cto->rsp.m1.ct_resplen = cto->ct_senselen = sense_length;
memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
}
} else {
bus_addr_t addr;
char buf[XCMD_SIZE];
fcp_rsp_iu_t *rp;
if (atp->ests == NULL) {
atp->ests = isp_get_ecmd(isp);
if (atp->ests == NULL) {
TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
break;
}
}
memset(buf, 0, sizeof (buf));
rp = (fcp_rsp_iu_t *)buf;
if (fctape) {
cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
rp->fcp_rsp_bits |= FCP_CONF_REQ;
}
cto->ct_flags |= CT7_FLAG_MODE2;
rp->fcp_rsp_scsi_status = cso->scsi_status;
if (resid < 0) {
rp->fcp_rsp_resid = -resid;
rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
} else if (resid > 0) {
rp->fcp_rsp_resid = resid;
rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
}
if (sense_length) {
rp->fcp_rsp_snslen = sense_length;
cto->ct_senselen = sense_length;
rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
} else {
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
}
if (isp->isp_dblev & ISP_LOGTDEBUG1) {
isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
}
addr = isp->isp_osinfo.ecmd_dma;
addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
isp_prt(isp, ISP_LOGTDEBUG0, "%s: ests base %p vaddr %p ecmd_dma %jx addr %jx len %u", __func__, isp->isp_osinfo.ecmd_base, atp->ests,
(uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
cto->rsp.m2.ct_fcp_rsp_iudata.ds_base = DMA_LO32(addr);
cto->rsp.m2.ct_fcp_rsp_iudata.ds_basehi = DMA_HI32(addr);
cto->rsp.m2.ct_fcp_rsp_iudata.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
}
if (sense_length) {
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d slen %u sense: %x %x/%x/%x", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, cto->ct_resid, sense_length,
cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
} else {
isp_prt(isp, ISP_LOGDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, cto->ct_resid);
}
atp->state = ATPD_STATE_LAST_CTIO;
}
/*
* Mode 0 data transfers, *possibly* with status.
*/
if (xfrlen != 0) {
cto->ct_flags |= CT7_FLAG_MODE0;
if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
cto->ct_flags |= CT7_DATA_IN;
} else {
cto->ct_flags |= CT7_DATA_OUT;
}
cto->rsp.m0.reloff = atp->bytes_xfered + atp->bytes_in_transit;
cto->rsp.m0.ct_xfrlen = xfrlen;
#ifdef DEBUG
if (ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame && xfrlen > ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame) {
isp_prt(isp, ISP_LOGWARN, "%s: truncating data frame with xfrlen %d to %d", __func__, xfrlen, xfrlen - (xfrlen >> 2));
ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame = 0;
cto->rsp.m0.ct_xfrlen -= xfrlen >> 2;
}
#endif
if (sendstatus) {
resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /* && fctape == 0 */) {
cto->ct_flags |= CT7_SENDSTATUS;
atp->state = ATPD_STATE_LAST_CTIO;
if (fctape) {
cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
}
} else {
atp->sendst = 1; /* send status later */
cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
atp->state = ATPD_STATE_CTIO;
}
} else {
atp->state = ATPD_STATE_CTIO;
}
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x xfrlen=%u off=%u", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, xfrlen, atp->bytes_xfered);
}
} else {
ct2_entry_t *cto = (ct2_entry_t *) local;
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
cto->ct_header.rqs_entry_count = 1;
cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
ATPD_SET_SEQNO(cto, atp);
if (ISP_CAP_2KLOGIN(isp)) {
((ct2e_entry_t *)cto)->ct_iid = atp->nphdl;
} else {
cto->ct_iid = atp->nphdl;
if (ISP_CAP_SCCFW(isp) == 0) {
cto->ct_lun = ccb->ccb_h.target_lun;
}
}
cto->ct_timeout = XS_TIME(ccb);
cto->ct_rxid = cso->tag_id;
/*
* Mode 1, status, no data. Only possible when we are sending status, have
* no data to transfer, and the sense length can fit in the ct7_entry.
*
* Mode 2, status, no data. We have to use this in the case the response
* length won't fit into a ct2_entry_t.
*
* We'll fill out this structure with information as if this were a
* Mode 1. The hardware layer will create the Mode 2 FCP RSP IU as
* needed based upon this.
*/
if (sendstatus && xfrlen == 0) {
cto->ct_flags |= CT2_SENDSTATUS | CT2_NO_DATA;
resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
if (sense_length <= MAXRESPLEN) {
if (resid < 0) {
cto->ct_resid = -resid;
} else if (resid > 0) {
cto->ct_resid = resid;
}
cto->ct_flags |= CT2_FLAG_MODE1;
cto->rsp.m1.ct_scsi_status = cso->scsi_status;
if (resid < 0) {
cto->rsp.m1.ct_scsi_status |= CT2_DATA_OVER;
} else if (resid > 0) {
cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
}
if (fctape) {
cto->ct_flags |= CT2_CONFIRM;
}
if (sense_length) {
cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
cto->rsp.m1.ct_resplen = cto->rsp.m1.ct_senselen = sense_length;
memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
}
} else {
bus_addr_t addr;
char buf[XCMD_SIZE];
fcp_rsp_iu_t *rp;
if (atp->ests == NULL) {
atp->ests = isp_get_ecmd(isp);
if (atp->ests == NULL) {
TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
break;
}
}
memset(buf, 0, sizeof (buf));
rp = (fcp_rsp_iu_t *)buf;
if (fctape) {
cto->ct_flags |= CT2_CONFIRM;
rp->fcp_rsp_bits |= FCP_CONF_REQ;
}
cto->ct_flags |= CT2_FLAG_MODE2;
rp->fcp_rsp_scsi_status = cso->scsi_status;
if (resid < 0) {
rp->fcp_rsp_resid = -resid;
rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
} else if (resid > 0) {
rp->fcp_rsp_resid = resid;
rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
}
if (sense_length) {
rp->fcp_rsp_snslen = sense_length;
rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
} else {
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
}
if (isp->isp_dblev & ISP_LOGTDEBUG1) {
isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
}
addr = isp->isp_osinfo.ecmd_dma;
addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
isp_prt(isp, ISP_LOGTDEBUG0, "%s: ests base %p vaddr %p ecmd_dma %jx addr %jx len %u", __func__, isp->isp_osinfo.ecmd_base, atp->ests,
(uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_base = DMA_LO32(addr);
cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
}
if (sense_length) {
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d sense: %x %x/%x/%x", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid,
cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
} else {
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __func__, cto->ct_rxid,
ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid);
}
atp->state = ATPD_STATE_LAST_CTIO;
}
if (xfrlen != 0) {
cto->ct_flags |= CT2_FLAG_MODE0;
if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
cto->ct_flags |= CT2_DATA_IN;
} else {
cto->ct_flags |= CT2_DATA_OUT;
}
cto->ct_reloff = atp->bytes_xfered + atp->bytes_in_transit;
cto->rsp.m0.ct_xfrlen = xfrlen;
if (sendstatus) {
resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /*&& fctape == 0*/) {
cto->ct_flags |= CT2_SENDSTATUS;
atp->state = ATPD_STATE_LAST_CTIO;
if (fctape) {
cto->ct_flags |= CT2_CONFIRM;
}
} else {
atp->sendst = 1; /* send status later */
cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
atp->state = ATPD_STATE_CTIO;
}
} else {
atp->state = ATPD_STATE_CTIO;
}
}
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[%x] seq %u nc %d CDB0=%x scsi status %x flags %x resid %d xfrlen %u offset %u", __func__, cto->ct_rxid,
ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid, cso->dxfer_len, atp->bytes_xfered);
}
if (isp_get_pcmd(isp, ccb)) {
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "out of PCMDs\n");
TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
break;
}
handle = isp_allocate_handle(isp, ccb, ISP_HANDLE_TARGET);
if (handle == 0) {
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "No XFLIST pointers for %s\n", __func__);
TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
isp_free_pcmd(isp, ccb);
break;
}
atp->bytes_in_transit += xfrlen;
PISP_PCMD(ccb)->datalen = xfrlen;
/*
* Call the dma setup routines for this entry (and any subsequent
* CTIOs) if there's data to move, and then tell the f/w it's got
* new things to play with. As with isp_start's usage of DMA setup,
* any swizzling is done in the machine dependent layer. Because
* of this, we put the request onto the queue area first in native
* format.
*/
if (IS_24XX(isp)) {
ct7_entry_t *cto = (ct7_entry_t *) local;
cto->ct_syshandle = handle;
} else {
ct2_entry_t *cto = (ct2_entry_t *) local;
cto->ct_syshandle = handle;
}
dmaresult = ISP_DMASETUP(isp, cso, (ispreq_t *) local);
if (dmaresult != CMD_QUEUED) {
isp_destroy_handle(isp, handle);
isp_free_pcmd(isp, ccb);
if (dmaresult == CMD_EAGAIN) {
TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
break;
}
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
continue;
}
ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
if (xfrlen) {
ccb->ccb_h.spriv_field0 = atp->bytes_xfered;
} else {
ccb->ccb_h.spriv_field0 = ~0;
}
atp->ctcnt++;
atp->seqno++;
}
}
static void
isp_refire_putback_atio(void *arg)
{
union ccb *ccb = arg;
ISP_ASSERT_LOCKED((ispsoftc_t *)XS_ISP(ccb));
isp_target_putback_atio(ccb);
}
static void
isp_refire_notify_ack(void *arg)
{
isp_tna_t *tp = arg;
ispsoftc_t *isp = tp->isp;
ISP_ASSERT_LOCKED(isp);
if (isp_notify_ack(isp, tp->not)) {
callout_schedule(&tp->timer, 5);
} else {
free(tp, M_DEVBUF);
}
}
static void
isp_target_putback_atio(union ccb *ccb)
{
ispsoftc_t *isp = XS_ISP(ccb);
struct ccb_scsiio *cso = &ccb->csio;
at2_entry_t local, *at = &local;
ISP_MEMZERO(at, sizeof (at2_entry_t));
at->at_header.rqs_entry_type = RQSTYPE_ATIO2;
at->at_header.rqs_entry_count = 1;
if (ISP_CAP_SCCFW(isp)) {
at->at_scclun = (uint16_t) ccb->ccb_h.target_lun;
} else {
at->at_lun = (uint8_t) ccb->ccb_h.target_lun;
}
at->at_status = CT_OK;
at->at_rxid = cso->tag_id;
at->at_iid = cso->init_id;
if (isp_target_put_entry(isp, at)) {
callout_reset(&PISP_PCMD(ccb)->wdog, 10,
isp_refire_putback_atio, ccb);
} else
isp_complete_ctio(ccb);
}
static void
isp_complete_ctio(union ccb *ccb)
{
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
xpt_done(ccb);
}
}
static void
isp_handle_platform_atio2(ispsoftc_t *isp, at2_entry_t *aep)
{
fcparam *fcp;
lun_id_t lun;
fcportdb_t *lp;
tstate_t *tptr;
struct ccb_accept_tio *atiop;
uint16_t nphdl;
atio_private_data_t *atp;
inot_private_data_t *ntp;
/*
* The firmware status (except for the QLTM_SVALID bit)
* indicates why this ATIO was sent to us.
*
* If QLTM_SVALID is set, the firmware has recommended Sense Data.
*/
if ((aep->at_status & ~QLTM_SVALID) != AT_CDB) {
isp_prt(isp, ISP_LOGWARN, "bogus atio (0x%x) leaked to platform", aep->at_status);
isp_endcmd(isp, aep, NIL_HANDLE, 0, SCSI_STATUS_BUSY, 0);
return;
}
fcp = FCPARAM(isp, 0);
if (ISP_CAP_SCCFW(isp)) {
lun = aep->at_scclun;
} else {
lun = aep->at_lun;
}
if (ISP_CAP_2KLOGIN(isp)) {
nphdl = ((at2e_entry_t *)aep)->at_iid;
} else {
nphdl = aep->at_iid;
}
tptr = get_lun_statep(isp, 0, lun);
if (tptr == NULL) {
tptr = get_lun_statep(isp, 0, CAM_LUN_WILDCARD);
if (tptr == NULL) {
isp_prt(isp, ISP_LOGWARN, "%s: [0x%x] no state pointer for lun %jx or wildcard", __func__, aep->at_rxid, (uintmax_t)lun);
if (lun == 0) {
isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
} else {
isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
}
return;
}
}
/*
* Start any commands pending resources first.
*/
if (isp_atio_restart(isp, 0, tptr))
goto noresrc;
atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
if (atiop == NULL) {
goto noresrc;
}
atp = isp_get_atpd(isp, 0, aep->at_rxid);
if (atp == NULL) {
goto noresrc;
}
atp->state = ATPD_STATE_ATIO;
SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
atiop->ccb_h.target_id = ISP_MAX_TARGETS(isp);
atiop->ccb_h.target_lun = lun;
/*
* We don't get 'suggested' sense data as we do with SCSI cards.
*/
atiop->sense_len = 0;
/*
* If we're not in the port database, add ourselves.
*/
if (IS_2100(isp))
atiop->init_id = nphdl;
else {
if (isp_find_pdb_by_handle(isp, 0, nphdl, &lp)) {
atiop->init_id = FC_PORTDB_TGT(isp, 0, lp);
} else {
isp_prt(isp, ISP_LOGTINFO, "%s: port %x isn't in PDB",
__func__, nphdl);
isp_dump_portdb(isp, 0);
isp_endcmd(isp, aep, NIL_HANDLE, 0, ECMD_TERMINATE, 0);
return;
}
}
atiop->cdb_len = ATIO2_CDBLEN;
ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cdb, ATIO2_CDBLEN);
atiop->ccb_h.status = CAM_CDB_RECVD;
atiop->tag_id = atp->tag;
switch (aep->at_taskflags & ATIO2_TC_ATTR_MASK) {
case ATIO2_TC_ATTR_SIMPLEQ:
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
atiop->tag_action = MSG_SIMPLE_Q_TAG;
break;
case ATIO2_TC_ATTR_HEADOFQ:
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
atiop->tag_action = MSG_HEAD_OF_Q_TAG;
break;
case ATIO2_TC_ATTR_ORDERED:
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
atiop->tag_action = MSG_ORDERED_Q_TAG;
break;
case ATIO2_TC_ATTR_ACAQ: /* ?? */
case ATIO2_TC_ATTR_UNTAGGED:
default:
atiop->tag_action = 0;
break;
}
atp->orig_datalen = aep->at_datalen;
atp->bytes_xfered = 0;
atp->lun = lun;
atp->nphdl = nphdl;
atp->sid = PORT_ANY;
atp->oxid = aep->at_oxid;
atp->cdb0 = aep->at_cdb[0];
atp->tattr = aep->at_taskflags & ATIO2_TC_ATTR_MASK;
atp->state = ATPD_STATE_CAM;
xpt_done((union ccb *)atiop);
isp_prt(isp, ISP_LOGTDEBUG0, "ATIO2[0x%x] CDB=0x%x lun %jx datalen %u", aep->at_rxid, atp->cdb0, (uintmax_t)lun, atp->orig_datalen);
return;
noresrc:
ntp = isp_get_ntpd(isp, 0);
if (ntp == NULL) {
isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
return;
}
memcpy(ntp->data, aep, QENTRY_LEN);
STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
}
static void
isp_handle_platform_atio7(ispsoftc_t *isp, at7_entry_t *aep)
{
int cdbxlen;
lun_id_t lun;
uint16_t chan, nphdl = NIL_HANDLE;
uint32_t did, sid;
fcportdb_t *lp;
tstate_t *tptr;
struct ccb_accept_tio *atiop;
atio_private_data_t *atp = NULL;
atio_private_data_t *oatp;
inot_private_data_t *ntp;
did = (aep->at_hdr.d_id[0] << 16) | (aep->at_hdr.d_id[1] << 8) | aep->at_hdr.d_id[2];
sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
lun = CAM_EXTLUN_BYTE_SWIZZLE(be64dec(aep->at_cmnd.fcp_cmnd_lun));
if (ISP_CAP_MULTI_ID(isp) && isp->isp_nchan > 1) {
/* Channel has to be derived from D_ID */
isp_find_chan_by_did(isp, did, &chan);
if (chan == ISP_NOCHAN) {
isp_prt(isp, ISP_LOGWARN,
"%s: [RX_ID 0x%x] D_ID %x not found on any channel",
__func__, aep->at_rxid, did);
isp_endcmd(isp, aep, NIL_HANDLE, ISP_NOCHAN,
ECMD_TERMINATE, 0);
return;
}
} else {
chan = 0;
}
/*
* Find the PDB entry for this initiator
*/
if (isp_find_pdb_by_portid(isp, chan, sid, &lp) == 0) {
/*
* If we're not in the port database terminate the exchange.
*/
isp_prt(isp, ISP_LOGTINFO, "%s: [RX_ID 0x%x] D_ID 0x%06x found on Chan %d for S_ID 0x%06x wasn't in PDB already",
__func__, aep->at_rxid, did, chan, sid);
isp_dump_portdb(isp, chan);
isp_endcmd(isp, aep, NIL_HANDLE, chan, ECMD_TERMINATE, 0);
return;
}
nphdl = lp->handle;
/*
* Get the tstate pointer
*/
tptr = get_lun_statep(isp, chan, lun);
if (tptr == NULL) {
tptr = get_lun_statep(isp, chan, CAM_LUN_WILDCARD);
if (tptr == NULL) {
isp_prt(isp, ISP_LOGWARN,
"%s: [0x%x] no state pointer for lun %jx or wildcard",
__func__, aep->at_rxid, (uintmax_t)lun);
if (lun == 0) {
isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
} else {
isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
}
return;
}
}
/*
* Start any commands pending resources first.
*/
if (isp_atio_restart(isp, chan, tptr))
goto noresrc;
/*
* If the f/w is out of resources, just send a BUSY status back.
*/
if (aep->at_rxid == AT7_NORESRC_RXID) {
isp_endcmd(isp, aep, nphdl, chan, SCSI_BUSY, 0);
return;
}
/*
* If we're out of resources, just send a BUSY status back.
*/
atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
if (atiop == NULL) {
isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atios", aep->at_rxid);
goto noresrc;
}
oatp = isp_find_atpd(isp, chan, aep->at_rxid);
if (oatp) {
isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] tag wraparound in isp_handle_platforms_atio7 (N-Port Handle 0x%04x S_ID 0x%04x OX_ID 0x%04x) oatp state %d",
aep->at_rxid, nphdl, sid, aep->at_hdr.ox_id, oatp->state);
/*
* It's not a "no resource" condition- but we can treat it like one
*/
goto noresrc;
}
atp = isp_get_atpd(isp, chan, aep->at_rxid);
if (atp == NULL) {
isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atps", aep->at_rxid);
goto noresrc;
}
atp->word3 = lp->prli_word3;
atp->state = ATPD_STATE_ATIO;
SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
atiop->init_id = FC_PORTDB_TGT(isp, chan, lp);
atiop->ccb_h.target_id = ISP_MAX_TARGETS(isp);
atiop->ccb_h.target_lun = lun;
atiop->sense_len = 0;
cdbxlen = aep->at_cmnd.fcp_cmnd_alen_datadir >> FCP_CMND_ADDTL_CDBLEN_SHIFT;
if (cdbxlen) {
isp_prt(isp, ISP_LOGWARN, "additional CDBLEN ignored");
}
cdbxlen = sizeof (aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb);
ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb, cdbxlen);
atiop->cdb_len = cdbxlen;
atiop->ccb_h.status = CAM_CDB_RECVD;
atiop->tag_id = atp->tag;
switch (aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK) {
case FCP_CMND_TASK_ATTR_SIMPLE:
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
atiop->tag_action = MSG_SIMPLE_Q_TAG;
break;
case FCP_CMND_TASK_ATTR_HEAD:
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
atiop->tag_action = MSG_HEAD_OF_Q_TAG;
break;
case FCP_CMND_TASK_ATTR_ORDERED:
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
atiop->tag_action = MSG_ORDERED_Q_TAG;
break;
default:
/* FALLTHROUGH */
case FCP_CMND_TASK_ATTR_ACA:
case FCP_CMND_TASK_ATTR_UNTAGGED:
atiop->tag_action = 0;
break;
}
atp->orig_datalen = aep->at_cmnd.cdb_dl.sf.fcp_cmnd_dl;
atp->bytes_xfered = 0;
atp->lun = lun;
atp->nphdl = nphdl;
atp->sid = sid;
atp->did = did;
atp->oxid = aep->at_hdr.ox_id;
atp->rxid = aep->at_hdr.rx_id;
atp->cdb0 = atiop->cdb_io.cdb_bytes[0];
atp->tattr = aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK;
atp->state = ATPD_STATE_CAM;
isp_prt(isp, ISP_LOGTDEBUG0, "ATIO7[0x%x] CDB=0x%x lun %jx datalen %u",
aep->at_rxid, atp->cdb0, (uintmax_t)lun, atp->orig_datalen);
xpt_done((union ccb *)atiop);
return;
noresrc:
if (atp)
isp_put_atpd(isp, chan, atp);
ntp = isp_get_ntpd(isp, chan);
if (ntp == NULL) {
isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
return;
}
memcpy(ntp->data, aep, QENTRY_LEN);
STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
}
/*
* Handle starting an SRR (sequence retransmit request)
* We get here when we've gotten the immediate notify
* and the return of all outstanding CTIOs for this
* transaction.
*/
static void
isp_handle_srr_start(ispsoftc_t *isp, atio_private_data_t *atp)
{
in_fcentry_24xx_t *inot;
uint32_t srr_off, ccb_off, ccb_len, ccb_end;
union ccb *ccb;
inot = (in_fcentry_24xx_t *)atp->srr;
srr_off = inot->in_srr_reloff_lo | (inot->in_srr_reloff_hi << 16);
ccb = atp->srr_ccb;
atp->srr_ccb = NULL;
atp->nsrr++;
if (ccb == NULL) {
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] null ccb", atp->tag);
goto fail;
}
ccb_off = ccb->ccb_h.spriv_field0;
ccb_len = ccb->csio.dxfer_len;
ccb_end = (ccb_off == ~0)? ~0 : ccb_off + ccb_len;
switch (inot->in_srr_iu) {
case R_CTL_INFO_SOLICITED_DATA:
/*
* We have to restart a FCP_DATA data out transaction
*/
atp->sendst = 0;
atp->bytes_xfered = srr_off;
if (ccb_len == 0) {
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x but current CCB doesn't transfer data", atp->tag, srr_off);
goto mdp;
}
if (srr_off < ccb_off || ccb_off > srr_off + ccb_len) {
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x not covered by current CCB data range [0x%x..0x%x]", atp->tag, srr_off, ccb_off, ccb_end);
goto mdp;
}
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x covered by current CCB data range [0x%x..0x%x]", atp->tag, srr_off, ccb_off, ccb_end);
break;
case R_CTL_INFO_COMMAND_STATUS:
isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] Got an FCP RSP SRR- resending status", atp->tag);
atp->sendst = 1;
/*
* We have to restart a FCP_RSP IU transaction
*/
break;
case R_CTL_INFO_DATA_DESCRIPTOR:
/*
* We have to restart an FCP DATA in transaction
*/
isp_prt(isp, ISP_LOGWARN, "Got an FCP DATA IN SRR- dropping");
goto fail;
default:
isp_prt(isp, ISP_LOGWARN, "Got an unknown information (%x) SRR- dropping", inot->in_srr_iu);
goto fail;
}
/*
* We can't do anything until this is acked, so we might as well start it now.
* We aren't going to do the usual asynchronous ack issue because we need
* to make sure this gets on the wire first.
*/
if (isp_notify_ack(isp, inot)) {
isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
goto fail;
}
isp_target_start_ctio(isp, ccb, FROM_SRR);
return;
fail:
inot->in_reserved = 1;
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
isp_complete_ctio(ccb);
return;
mdp:
if (isp_notify_ack(isp, inot)) {
isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
goto fail;
}
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status = CAM_MESSAGE_RECV;
/*
* This is not a strict interpretation of MDP, but it's close
*/
ccb->csio.msg_ptr = &ccb->csio.sense_data.sense_buf[SSD_FULL_SIZE - 16];
ccb->csio.msg_len = 7;
ccb->csio.msg_ptr[0] = MSG_EXTENDED;
ccb->csio.msg_ptr[1] = 5;
ccb->csio.msg_ptr[2] = 0; /* modify data pointer */
ccb->csio.msg_ptr[3] = srr_off >> 24;
ccb->csio.msg_ptr[4] = srr_off >> 16;
ccb->csio.msg_ptr[5] = srr_off >> 8;
ccb->csio.msg_ptr[6] = srr_off;
isp_complete_ctio(ccb);
}
static void
isp_handle_platform_srr(ispsoftc_t *isp, isp_notify_t *notify)
{
in_fcentry_24xx_t *inot = notify->nt_lreserved;
atio_private_data_t *atp;
uint32_t tag = notify->nt_tagval & 0xffffffff;
atp = isp_find_atpd(isp, notify->nt_channel, tag);
if (atp == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x in SRR Notify",
__func__, tag);
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
return;
}
atp->srr_notify_rcvd = 1;
memcpy(atp->srr, inot, sizeof (atp->srr));
isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] flags 0x%x srr_iu %x reloff 0x%x",
inot->in_rxid, inot->in_flags, inot->in_srr_iu,
((uint32_t)inot->in_srr_reloff_hi << 16) | inot->in_srr_reloff_lo);
if (atp->srr_ccb)
isp_handle_srr_start(isp, atp);
}
static void
isp_handle_platform_ctio(ispsoftc_t *isp, void *arg)
{
union ccb *ccb;
int sentstatus = 0, ok = 0, notify_cam = 0, failure = 0;
atio_private_data_t *atp = NULL;
int bus;
uint32_t handle, data_requested, resid;
handle = ((ct2_entry_t *)arg)->ct_syshandle;
ccb = isp_find_xs(isp, handle);
if (ccb == NULL) {
isp_print_bytes(isp, "null ccb in isp_handle_platform_ctio", QENTRY_LEN, arg);
return;
}
isp_destroy_handle(isp, handle);
resid = data_requested = PISP_PCMD(ccb)->datalen;
isp_free_pcmd(isp, ccb);
bus = XS_CHANNEL(ccb);
if (IS_24XX(isp)) {
atp = isp_find_atpd(isp, bus, ((ct7_entry_t *)arg)->ct_rxid);
} else {
atp = isp_find_atpd(isp, bus, ((ct2_entry_t *)arg)->ct_rxid);
}
if (atp == NULL) {
/*
* XXX: isp_clear_commands() generates fake CTIO with zero
* ct_rxid value, filling only ct_syshandle. Workaround
* that using tag_id from the CCB, pointed by ct_syshandle.
*/
atp = isp_find_atpd(isp, bus, ccb->csio.tag_id);
}
if (atp == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x after I/O", __func__, ccb->csio.tag_id);
return;
}
KASSERT((atp->ctcnt > 0), ("ctio count not greater than zero"));
atp->bytes_in_transit -= data_requested;
atp->ctcnt -= 1;
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
if (IS_24XX(isp)) {
ct7_entry_t *ct = arg;
if (ct->ct_nphdl == CT7_SRR) {
atp->srr_ccb = ccb;
if (atp->srr_notify_rcvd)
isp_handle_srr_start(isp, atp);
return;
}
if (ct->ct_nphdl == CT_HBA_RESET) {
sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
(atp->sendst == 0);
failure = CAM_UNREC_HBA_ERROR;
} else {
sentstatus = ct->ct_flags & CT7_SENDSTATUS;
ok = (ct->ct_nphdl == CT7_OK);
notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
if ((ct->ct_flags & CT7_DATAMASK) != CT7_NO_DATA)
resid = ct->ct_resid;
}
isp_prt(isp, ok? ISP_LOGTDEBUG0 : ISP_LOGWARN, "%s: CTIO7[%x] seq %u nc %d sts 0x%x flg 0x%x sns %d resid %d %s", __func__, ct->ct_rxid, ATPD_GET_SEQNO(ct),
notify_cam, ct->ct_nphdl, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
} else {
ct2_entry_t *ct = arg;
if (ct->ct_status == CT_SRR) {
atp->srr_ccb = ccb;
if (atp->srr_notify_rcvd)
isp_handle_srr_start(isp, atp);
isp_target_putback_atio(ccb);
return;
}
if (ct->ct_status == CT_HBA_RESET) {
sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
(atp->sendst == 0);
failure = CAM_UNREC_HBA_ERROR;
} else {
sentstatus = ct->ct_flags & CT2_SENDSTATUS;
ok = (ct->ct_status & ~QLTM_SVALID) == CT_OK;
notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA)
resid = ct->ct_resid;
}
isp_prt(isp, ok? ISP_LOGTDEBUG0 : ISP_LOGWARN, "%s: CTIO2[%x] seq %u nc %d sts 0x%x flg 0x%x sns %d resid %d %s", __func__, ct->ct_rxid, ATPD_GET_SEQNO(ct),
notify_cam, ct->ct_status, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
}
if (ok) {
if (data_requested > 0) {
atp->bytes_xfered += data_requested - resid;
ccb->csio.resid = ccb->csio.dxfer_len -
(data_requested - resid);
}
if (sentstatus && (ccb->ccb_h.flags & CAM_SEND_SENSE))
ccb->ccb_h.status |= CAM_SENT_SENSE;
ccb->ccb_h.status |= CAM_REQ_CMP;
} else {
notify_cam = 1;
if (failure == CAM_UNREC_HBA_ERROR)
ccb->ccb_h.status |= CAM_UNREC_HBA_ERROR;
else
ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
}
atp->state = ATPD_STATE_PDON;
/*
* We never *not* notify CAM when there has been any error (ok == 0),
* so we never need to do an ATIO putback if we're not notifying CAM.
*/
isp_prt(isp, ISP_LOGTDEBUG0, "%s CTIO[0x%x] done (ok=%d nc=%d nowsendstatus=%d ccb ss=%d)",
(sentstatus)? " FINAL " : "MIDTERM ", atp->tag, ok, notify_cam, atp->sendst, (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0);
if (notify_cam == 0) {
if (atp->sendst) {
isp_target_start_ctio(isp, ccb, FROM_CTIO_DONE);
}
return;
}
/*
* We are done with this ATIO if we successfully sent status.
* In all other cases expect either another CTIO or XPT_ABORT.
*/
if (ok && sentstatus)
isp_put_atpd(isp, bus, atp);
/*
* We're telling CAM we're done with this CTIO transaction.
*
* 24XX cards never need an ATIO put back.
*
* Other cards need one put back only on error.
* In the latter case, a timeout will re-fire
* and try again in case we didn't have
* queue resources to do so at first. In any case,
* once the putback is done we do the completion
* call.
*/
if (ok || IS_24XX(isp)) {
isp_complete_ctio(ccb);
} else {
isp_target_putback_atio(ccb);
}
}
static int
isp_handle_platform_target_notify_ack(ispsoftc_t *isp, isp_notify_t *mp, uint32_t rsp)
{
if (isp->isp_state != ISP_RUNSTATE) {
isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) acked- h/w not ready (dropping)", mp->nt_ncode, mp->nt_lreserved != NULL);
return (0);
}
/*
* This case is for a Task Management Function, which shows up as an ATIO7 entry.
*/
if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ATIO) {
ct7_entry_t local, *cto = &local;
at7_entry_t *aep = (at7_entry_t *)mp->nt_lreserved;
fcportdb_t *lp;
uint32_t sid;
uint16_t nphdl;
sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
if (isp_find_pdb_by_portid(isp, mp->nt_channel, sid, &lp)) {
nphdl = lp->handle;
} else {
nphdl = NIL_HANDLE;
}
ISP_MEMZERO(&local, sizeof (local));
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
cto->ct_header.rqs_entry_count = 1;
cto->ct_nphdl = nphdl;
cto->ct_rxid = aep->at_rxid;
cto->ct_vpidx = mp->nt_channel;
cto->ct_iid_lo = sid;
cto->ct_iid_hi = sid >> 16;
cto->ct_oxid = aep->at_hdr.ox_id;
cto->ct_flags = CT7_SENDSTATUS|CT7_NOACK|CT7_NO_DATA|CT7_FLAG_MODE1;
cto->ct_flags |= (aep->at_ta_len >> 12) << CT7_TASK_ATTR_SHIFT;
if (rsp != 0) {
cto->ct_scsi_status |= (FCP_RSPLEN_VALID << 8);
cto->rsp.m1.ct_resplen = 4;
ISP_MEMZERO(cto->rsp.m1.ct_resp, sizeof (cto->rsp.m1.ct_resp));
cto->rsp.m1.ct_resp[0] = rsp & 0xff;
cto->rsp.m1.ct_resp[1] = (rsp >> 8) & 0xff;
cto->rsp.m1.ct_resp[2] = (rsp >> 16) & 0xff;
cto->rsp.m1.ct_resp[3] = (rsp >> 24) & 0xff;
}
return (isp_target_put_entry(isp, &local));
}
/*
* This case is for a responding to an ABTS frame
*/
if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
/*
* Overload nt_need_ack here to mark whether we've terminated the associated command.
*/
if (mp->nt_need_ack) {
uint8_t storage[QENTRY_LEN];
ct7_entry_t *cto = (ct7_entry_t *) storage;
abts_t *abts = (abts_t *)mp->nt_lreserved;
ISP_MEMZERO(cto, sizeof (ct7_entry_t));
isp_prt(isp, ISP_LOGTDEBUG0, "%s: [%x] terminating after ABTS received", __func__, abts->abts_rxid_task);
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
cto->ct_header.rqs_entry_count = 1;
cto->ct_nphdl = mp->nt_nphdl;
cto->ct_rxid = abts->abts_rxid_task;
cto->ct_iid_lo = mp->nt_sid;
cto->ct_iid_hi = mp->nt_sid >> 16;
cto->ct_oxid = abts->abts_ox_id;
cto->ct_vpidx = mp->nt_channel;
cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
if (isp_target_put_entry(isp, cto)) {
return (ENOMEM);
}
mp->nt_need_ack = 0;
}
if (isp_acknak_abts(isp, mp->nt_lreserved, 0) == ENOMEM) {
return (ENOMEM);
} else {
return (0);
}
}
/*
* Handle logout cases here
*/
if (mp->nt_ncode == NT_GLOBAL_LOGOUT) {
isp_del_all_wwn_entries(isp, mp->nt_channel);
}
if (mp->nt_ncode == NT_LOGOUT) {
if (!IS_2100(isp) && IS_FC(isp)) {
isp_del_wwn_entries(isp, mp);
}
}
/*
* General purpose acknowledgement
*/
if (mp->nt_need_ack) {
isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) being acked", mp->nt_ncode, mp->nt_lreserved != NULL);
/*
* Don't need to use the guaranteed send because the caller can retry
*/
return (isp_notify_ack(isp, mp->nt_lreserved));
}
return (0);
}
/*
* Handle task management functions.
*
* We show up here with a notify structure filled out.
*
* The nt_lreserved tag points to the original queue entry
*/
static void
isp_handle_platform_target_tmf(ispsoftc_t *isp, isp_notify_t *notify)
{
tstate_t *tptr;
fcportdb_t *lp;
struct ccb_immediate_notify *inot;
inot_private_data_t *ntp = NULL;
atio_private_data_t *atp;
lun_id_t lun;
isp_prt(isp, ISP_LOGTDEBUG0, "%s: code 0x%x sid 0x%x tagval 0x%016llx chan %d lun %jx", __func__, notify->nt_ncode,
notify->nt_sid, (unsigned long long) notify->nt_tagval, notify->nt_channel, notify->nt_lun);
if (notify->nt_lun == LUN_ANY) {
if (notify->nt_tagval == TAG_ANY) {
lun = CAM_LUN_WILDCARD;
} else {
atp = isp_find_atpd(isp, notify->nt_channel,
notify->nt_tagval & 0xffffffff);
lun = atp ? atp->lun : CAM_LUN_WILDCARD;
}
} else {
lun = notify->nt_lun;
}
tptr = get_lun_statep(isp, notify->nt_channel, lun);
if (tptr == NULL) {
tptr = get_lun_statep(isp, notify->nt_channel, CAM_LUN_WILDCARD);
if (tptr == NULL) {
isp_prt(isp, ISP_LOGWARN, "%s: no state pointer found for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
goto bad;
}
}
inot = (struct ccb_immediate_notify *) SLIST_FIRST(&tptr->inots);
if (inot == NULL) {
isp_prt(isp, ISP_LOGWARN, "%s: out of immediate notify structures for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
goto bad;
}
inot->ccb_h.target_id = ISP_MAX_TARGETS(isp);
inot->ccb_h.target_lun = lun;
if (isp_find_pdb_by_portid(isp, notify->nt_channel, notify->nt_sid, &lp) == 0 &&
isp_find_pdb_by_handle(isp, notify->nt_channel, notify->nt_nphdl, &lp) == 0) {
inot->initiator_id = CAM_TARGET_WILDCARD;
} else {
inot->initiator_id = FC_PORTDB_TGT(isp, notify->nt_channel, lp);
}
inot->seq_id = notify->nt_tagval;
inot->tag_id = notify->nt_tagval >> 32;
switch (notify->nt_ncode) {
case NT_ABORT_TASK:
isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, inot->tag_id);
inot->arg = MSG_ABORT_TASK;
break;
case NT_ABORT_TASK_SET:
isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, TAG_ANY);
inot->arg = MSG_ABORT_TASK_SET;
break;
case NT_CLEAR_ACA:
inot->arg = MSG_CLEAR_ACA;
break;
case NT_CLEAR_TASK_SET:
inot->arg = MSG_CLEAR_TASK_SET;
break;
case NT_LUN_RESET:
inot->arg = MSG_LOGICAL_UNIT_RESET;
break;
case NT_TARGET_RESET:
inot->arg = MSG_TARGET_RESET;
break;
case NT_QUERY_TASK_SET:
inot->arg = MSG_QUERY_TASK_SET;
break;
case NT_QUERY_ASYNC_EVENT:
inot->arg = MSG_QUERY_ASYNC_EVENT;
break;
default:
isp_prt(isp, ISP_LOGWARN, "%s: unknown TMF code 0x%x for chan %d lun %#jx", __func__, notify->nt_ncode, notify->nt_channel, (uintmax_t)lun);
goto bad;
}
ntp = isp_get_ntpd(isp, notify->nt_channel);
if (ntp == NULL) {
isp_prt(isp, ISP_LOGWARN, "%s: out of inotify private structures", __func__);
goto bad;
}
ISP_MEMCPY(&ntp->nt, notify, sizeof (isp_notify_t));
if (notify->nt_lreserved) {
ISP_MEMCPY(&ntp->data, notify->nt_lreserved, QENTRY_LEN);
ntp->nt.nt_lreserved = &ntp->data;
}
ntp->seq_id = notify->nt_tagval;
ntp->tag_id = notify->nt_tagval >> 32;
SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, inot->ccb_h.path, "Take FREE INOT\n");
inot->ccb_h.status = CAM_MESSAGE_RECV;
xpt_done((union ccb *)inot);
return;
bad:
if (notify->nt_need_ack) {
if (((isphdr_t *)notify->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
if (isp_acknak_abts(isp, notify->nt_lreserved, ENOMEM)) {
isp_prt(isp, ISP_LOGWARN, "you lose- unable to send an ACKNAK");
}
} else {
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, notify->nt_lreserved);
}
}
}
static void
isp_target_mark_aborted_early(ispsoftc_t *isp, int chan, tstate_t *tptr, uint32_t tag_id)
{
atio_private_data_t *atp, *atpool;
inot_private_data_t *ntp, *tmp;
uint32_t this_tag_id;
/*
* First, clean any commands pending restart
*/
STAILQ_FOREACH_SAFE(ntp, &tptr->restart_queue, next, tmp) {
if (IS_24XX(isp))
this_tag_id = ((at7_entry_t *)ntp->data)->at_rxid;
else
this_tag_id = ((at2_entry_t *)ntp->data)->at_rxid;
if ((uint64_t)tag_id == TAG_ANY || tag_id == this_tag_id) {
isp_endcmd(isp, ntp->data, NIL_HANDLE, chan,
ECMD_TERMINATE, 0);
isp_put_ntpd(isp, chan, ntp);
STAILQ_REMOVE(&tptr->restart_queue, ntp,
inot_private_data, next);
}
}
/*
* Now mark other ones dead as well.
*/
ISP_GET_PC(isp, chan, atpool, atpool);
for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
if (atp->lun != tptr->ts_lun)
continue;
if ((uint64_t)tag_id == TAG_ANY || atp->tag == tag_id)
atp->dead = 1;
}
}
#endif
static void
isp_cam_async(void *cbarg, uint32_t code, struct cam_path *path, void *arg)
{
struct cam_sim *sim;
int bus, tgt;
ispsoftc_t *isp;
sim = (struct cam_sim *)cbarg;
isp = (ispsoftc_t *) cam_sim_softc(sim);
bus = cam_sim_bus(sim);
tgt = xpt_path_target_id(path);
switch (code) {
case AC_LOST_DEVICE:
if (IS_SCSI(isp)) {
uint16_t oflags, nflags;
sdparam *sdp = SDPARAM(isp, bus);
if (tgt >= 0) {
nflags = sdp->isp_devparam[tgt].nvrm_flags;
nflags &= DPARM_SAFE_DFLT;
if (isp->isp_loaded_fw) {
nflags |= DPARM_NARROW | DPARM_ASYNC;
}
oflags = sdp->isp_devparam[tgt].goal_flags;
sdp->isp_devparam[tgt].goal_flags = nflags;
sdp->isp_devparam[tgt].dev_update = 1;
sdp->update = 1;
(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
sdp->isp_devparam[tgt].goal_flags = oflags;
}
}
break;
default:
isp_prt(isp, ISP_LOGWARN, "isp_cam_async: Code 0x%x", code);
break;
}
}
static void
isp_poll(struct cam_sim *sim)
{
ispsoftc_t *isp = cam_sim_softc(sim);
ISP_RUN_ISR(isp);
}
static void
isp_watchdog(void *arg)
{
struct ccb_scsiio *xs = arg;
ispsoftc_t *isp;
uint32_t ohandle = ISP_HANDLE_FREE, handle;
isp = XS_ISP(xs);
handle = isp_find_handle(isp, xs);
/*
* Hand crank the interrupt code just to be sure the command isn't stuck somewhere.
*/
if (handle != ISP_HANDLE_FREE) {
ISP_RUN_ISR(isp);
ohandle = handle;
handle = isp_find_handle(isp, xs);
}
if (handle != ISP_HANDLE_FREE) {
/*
* Try and make sure the command is really dead before
* we release the handle (and DMA resources) for reuse.
*
* If we are successful in aborting the command then
* we're done here because we'll get the command returned
* back separately.
*/
if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
return;
}
/*
* Note that after calling the above, the command may in
* fact have been completed.
*/
xs = isp_find_xs(isp, handle);
/*
* If the command no longer exists, then we won't
* be able to find the xs again with this handle.
*/
if (xs == NULL) {
return;
}
/*
* After this point, the command is really dead.
*/
if (XS_XFRLEN(xs)) {
ISP_DMAFREE(isp, xs, handle);
}
isp_destroy_handle(isp, handle);
isp_prt(isp, ISP_LOGERR, "%s: timeout for handle 0x%x", __func__, handle);
XS_SETERR(xs, CAM_CMD_TIMEOUT);
isp_done(xs);
} else {
if (ohandle != ISP_HANDLE_FREE) {
isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle 0x%x, recovered during interrupt", __func__, ohandle);
} else {
isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle already free", __func__);
}
}
}
static void
isp_make_here(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
{
union ccb *ccb;
struct isp_fc *fc = ISP_FC_PC(isp, chan);
/*
* Allocate a CCB, create a wildcard path for this target and schedule a rescan.
*/
ccb = xpt_alloc_ccb_nowait();
if (ccb == NULL) {
isp_prt(isp, ISP_LOGWARN, "Chan %d unable to alloc CCB for rescan", chan);
return;
}
if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(fc->sim),
tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
isp_prt(isp, ISP_LOGWARN, "unable to create path for rescan");
xpt_free_ccb(ccb);
return;
}
xpt_rescan(ccb);
}
static void
isp_make_gone(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
{
struct cam_path *tp;
struct isp_fc *fc = ISP_FC_PC(isp, chan);
if (xpt_create_path(&tp, NULL, cam_sim_path(fc->sim), tgt, CAM_LUN_WILDCARD) == CAM_REQ_CMP) {
xpt_async(AC_LOST_DEVICE, tp, NULL);
xpt_free_path(tp);
}
}
/*
* Gone Device Timer Function- when we have decided that a device has gone
* away, we wait a specific period of time prior to telling the OS it has
* gone away.
*
* This timer function fires once a second and then scans the port database
* for devices that are marked dead but still have a virtual target assigned.
* We decrement a counter for that port database entry, and when it hits zero,
* we tell the OS the device has gone away.
*/
static void
isp_gdt(void *arg)
{
struct isp_fc *fc = arg;
taskqueue_enqueue(taskqueue_thread, &fc->gtask);
}
static void
isp_gdt_task(void *arg, int pending)
{
struct isp_fc *fc = arg;
ispsoftc_t *isp = fc->isp;
int chan = fc - isp->isp_osinfo.pc.fc;
fcportdb_t *lp;
struct ac_contract ac;
struct ac_device_changed *adc;
int dbidx, more_to_do = 0;
ISP_LOCK(isp);
isp_prt(isp, ISP_LOGDEBUG0, "Chan %d GDT timer expired", chan);
for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
lp = &FCPARAM(isp, chan)->portdb[dbidx];
if (lp->state != FC_PORTDB_STATE_ZOMBIE) {
continue;
}
if (lp->gone_timer != 0) {
lp->gone_timer -= 1;
more_to_do++;
continue;
}
isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Gone Device Timeout");
if (lp->is_target) {
lp->is_target = 0;
isp_make_gone(isp, lp, chan, dbidx);
}
if (lp->is_initiator) {
lp->is_initiator = 0;
ac.contract_number = AC_CONTRACT_DEV_CHG;
adc = (struct ac_device_changed *) ac.contract_data;
adc->wwpn = lp->port_wwn;
adc->port = lp->portid;
adc->target = dbidx;
adc->arrived = 0;
xpt_async(AC_CONTRACT, fc->path, &ac);
}
lp->state = FC_PORTDB_STATE_NIL;
}
if (fc->ready) {
if (more_to_do) {
callout_reset(&fc->gdt, hz, isp_gdt, fc);
} else {
callout_deactivate(&fc->gdt);
isp_prt(isp, ISP_LOG_SANCFG, "Chan %d Stopping Gone Device Timer @ %lu", chan, (unsigned long) time_uptime);
}
}
ISP_UNLOCK(isp);
}
/*
* When loop goes down we remember the time and freeze CAM command queue.
* During some time period we are trying to reprobe the loop. But if we
* fail, we tell the OS that devices have gone away and drop the freeze.
*
* We don't clear the devices out of our port database because, when loop
* come back up, we have to do some actual cleanup with the chip at that
* point (implicit PLOGO, e.g., to get the chip's port database state right).
*/
static void
isp_loop_changed(ispsoftc_t *isp, int chan)
{
fcparam *fcp = FCPARAM(isp, chan);
struct isp_fc *fc = ISP_FC_PC(isp, chan);
if (fc->loop_down_time)
return;
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop changed", chan);
if (fcp->role & ISP_ROLE_INITIATOR)
isp_freeze_loopdown(isp, chan);
fc->loop_down_time = time_uptime;
wakeup(fc);
}
static void
isp_loop_up(ispsoftc_t *isp, int chan)
{
struct isp_fc *fc = ISP_FC_PC(isp, chan);
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is up", chan);
fc->loop_seen_once = 1;
fc->loop_down_time = 0;
isp_unfreeze_loopdown(isp, chan);
}
static void
isp_loop_dead(ispsoftc_t *isp, int chan)
{
fcparam *fcp = FCPARAM(isp, chan);
struct isp_fc *fc = ISP_FC_PC(isp, chan);
fcportdb_t *lp;
struct ac_contract ac;
struct ac_device_changed *adc;
int dbidx, i;
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is dead", chan);
/*
* Notify to the OS all targets who we now consider have departed.
*/
for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
lp = &fcp->portdb[dbidx];
if (lp->state == FC_PORTDB_STATE_NIL)
continue;
for (i = 0; i < isp->isp_maxcmds; i++) {
struct ccb_scsiio *xs;
if (ISP_H2HT(isp->isp_xflist[i].handle) != ISP_HANDLE_INITIATOR) {
continue;
}
if ((xs = isp->isp_xflist[i].cmd) == NULL) {
continue;
}
if (dbidx != XS_TGT(xs)) {
continue;
}
isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%jx orphaned by loop down timeout",
isp->isp_xflist[i].handle, chan, XS_TGT(xs),
(uintmax_t)XS_LUN(xs));
/*
* Just like in isp_watchdog, abort the outstanding
* command or immediately free its resources if it is
* not active
*/
if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
continue;
}
if (XS_XFRLEN(xs)) {
ISP_DMAFREE(isp, xs, isp->isp_xflist[i].handle);
}
isp_destroy_handle(isp, isp->isp_xflist[i].handle);
isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%jx could not be aborted and was destroyed",
isp->isp_xflist[i].handle, chan, XS_TGT(xs),
(uintmax_t)XS_LUN(xs));
XS_SETERR(xs, HBA_BUSRESET);
isp_done(xs);
}
isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Loop Down Timeout");
if (lp->is_target) {
lp->is_target = 0;
isp_make_gone(isp, lp, chan, dbidx);
}
if (lp->is_initiator) {
lp->is_initiator = 0;
ac.contract_number = AC_CONTRACT_DEV_CHG;
adc = (struct ac_device_changed *) ac.contract_data;
adc->wwpn = lp->port_wwn;
adc->port = lp->portid;
adc->target = dbidx;
adc->arrived = 0;
xpt_async(AC_CONTRACT, fc->path, &ac);
}
}
isp_unfreeze_loopdown(isp, chan);
fc->loop_down_time = 0;
}
static void
isp_kthread(void *arg)
{
struct isp_fc *fc = arg;
ispsoftc_t *isp = fc->isp;
int chan = fc - isp->isp_osinfo.pc.fc;
int slp = 0, d;
int lb, lim;
ISP_LOCK(isp);
while (isp->isp_osinfo.is_exiting == 0) {
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
"Chan %d Checking FC state", chan);
lb = isp_fc_runstate(isp, chan, 250000);
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
"Chan %d FC got to %s state", chan,
isp_fc_loop_statename(lb));
/*
* Our action is different based upon whether we're supporting
* Initiator mode or not. If we are, we might freeze the simq
* when loop is down and set all sorts of different delays to
* check again.
*
* If not, we simply just wait for loop to come up.
*/
if (lb == LOOP_READY || lb < 0) {
slp = 0;
} else {
/*
* If we've never seen loop up and we've waited longer
* than quickboot time, or we've seen loop up but we've
* waited longer than loop_down_limit, give up and go
* to sleep until loop comes up.
*/
if (fc->loop_seen_once == 0)
lim = isp_quickboot_time;
else
lim = fc->loop_down_limit;
d = time_uptime - fc->loop_down_time;
if (d >= lim)
slp = 0;
else if (d < 10)
slp = 1;
else if (d < 30)
slp = 5;
else if (d < 60)
slp = 10;
else if (d < 120)
slp = 20;
else
slp = 30;
}
if (slp == 0) {
if (lb == LOOP_READY)
isp_loop_up(isp, chan);
else
isp_loop_dead(isp, chan);
}
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
"Chan %d sleep for %d seconds", chan, slp);
msleep(fc, &isp->isp_lock, PRIBIO, "ispf", slp * hz);
}
fc->num_threads -= 1;
ISP_UNLOCK(isp);
kthread_exit();
}
#ifdef ISP_TARGET_MODE
static void
isp_abort_atio(ispsoftc_t *isp, union ccb *ccb)
{
atio_private_data_t *atp;
union ccb *accb = ccb->cab.abort_ccb;
struct ccb_hdr *sccb;
tstate_t *tptr;
tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
if (tptr != NULL) {
/* Search for the ATIO among queueued. */
SLIST_FOREACH(sccb, &tptr->atios, sim_links.sle) {
if (sccb != &accb->ccb_h)
continue;
SLIST_REMOVE(&tptr->atios, sccb, ccb_hdr, sim_links.sle);
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
"Abort FREE ATIO\n");
accb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(accb);
ccb->ccb_h.status = CAM_REQ_CMP;
return;
}
}
/* Search for the ATIO among running. */
atp = isp_find_atpd(isp, XS_CHANNEL(accb), accb->atio.tag_id);
if (atp != NULL) {
/* Send TERMINATE to firmware. */
if (!atp->dead && IS_24XX(isp)) {
uint8_t storage[QENTRY_LEN];
ct7_entry_t *cto = (ct7_entry_t *) storage;
ISP_MEMZERO(cto, sizeof (ct7_entry_t));
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
cto->ct_header.rqs_entry_count = 1;
cto->ct_nphdl = atp->nphdl;
cto->ct_rxid = atp->tag;
cto->ct_iid_lo = atp->sid;
cto->ct_iid_hi = atp->sid >> 16;
cto->ct_oxid = atp->oxid;
cto->ct_vpidx = XS_CHANNEL(accb);
cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
isp_target_put_entry(isp, cto);
}
isp_put_atpd(isp, XS_CHANNEL(accb), atp);
ccb->ccb_h.status = CAM_REQ_CMP;
} else {
ccb->ccb_h.status = CAM_UA_ABORT;
}
}
static void
isp_abort_inot(ispsoftc_t *isp, union ccb *ccb)
{
inot_private_data_t *ntp;
union ccb *accb = ccb->cab.abort_ccb;
struct ccb_hdr *sccb;
tstate_t *tptr;
tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
if (tptr != NULL) {
/* Search for the INOT among queueued. */
SLIST_FOREACH(sccb, &tptr->inots, sim_links.sle) {
if (sccb != &accb->ccb_h)
continue;
SLIST_REMOVE(&tptr->inots, sccb, ccb_hdr, sim_links.sle);
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
"Abort FREE INOT\n");
accb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(accb);
ccb->ccb_h.status = CAM_REQ_CMP;
return;
}
}
/* Search for the INOT among running. */
ntp = isp_find_ntpd(isp, XS_CHANNEL(accb), accb->cin1.tag_id, accb->cin1.seq_id);
if (ntp != NULL) {
if (ntp->nt.nt_need_ack) {
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK,
ntp->nt.nt_lreserved);
}
isp_put_ntpd(isp, XS_CHANNEL(accb), ntp);
ccb->ccb_h.status = CAM_REQ_CMP;
} else {
ccb->ccb_h.status = CAM_UA_ABORT;
return;
}
}
#endif
static void
isp_action(struct cam_sim *sim, union ccb *ccb)
{
int bus, tgt, error;
ispsoftc_t *isp;
struct ccb_trans_settings *cts;
sbintime_t ts;
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("isp_action\n"));
isp = (ispsoftc_t *)cam_sim_softc(sim);
ISP_ASSERT_LOCKED(isp);
bus = cam_sim_bus(sim);
isp_prt(isp, ISP_LOGDEBUG2, "isp_action code %x", ccb->ccb_h.func_code);
ISP_PCMD(ccb) = NULL;
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO: /* Execute the requested I/O operation */
/*
* Do a couple of preliminary checks...
*/
if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
ccb->ccb_h.status = CAM_REQ_INVALID;
isp_done((struct ccb_scsiio *) ccb);
break;
}
}
ccb->csio.req_map = NULL;
#ifdef DIAGNOSTIC
if (ccb->ccb_h.target_id >= ISP_MAX_TARGETS(isp)) {
xpt_print(ccb->ccb_h.path, "invalid target\n");
ccb->ccb_h.status = CAM_PATH_INVALID;
} else if (ISP_MAX_LUNS(isp) > 0 &&
ccb->ccb_h.target_lun >= ISP_MAX_LUNS(isp)) {
xpt_print(ccb->ccb_h.path, "invalid lun\n");
ccb->ccb_h.status = CAM_PATH_INVALID;
}
if (ccb->ccb_h.status == CAM_PATH_INVALID) {
xpt_done(ccb);
break;
}
#endif
ccb->csio.scsi_status = SCSI_STATUS_OK;
if (isp_get_pcmd(isp, ccb)) {
isp_prt(isp, ISP_LOGWARN, "out of PCMDs");
cam_freeze_devq(ccb->ccb_h.path);
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 250, 0);
ccb->ccb_h.status = CAM_REQUEUE_REQ;
xpt_done(ccb);
break;
}
error = isp_start((XS_T *) ccb);
switch (error) {
case CMD_QUEUED:
ccb->ccb_h.status |= CAM_SIM_QUEUED;
if (ccb->ccb_h.timeout == CAM_TIME_INFINITY)
break;
/* Give firmware extra 10s to handle timeout. */
ts = SBT_1MS * ccb->ccb_h.timeout + 10 * SBT_1S;
callout_reset_sbt(&PISP_PCMD(ccb)->wdog, ts, 0,
isp_watchdog, ccb, 0);
break;
case CMD_RQLATER:
isp_prt(isp, ISP_LOGDEBUG0, "%d.%jx retry later",
XS_TGT(ccb), (uintmax_t)XS_LUN(ccb));
cam_freeze_devq(ccb->ccb_h.path);
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
ccb->ccb_h.status = CAM_REQUEUE_REQ;
isp_free_pcmd(isp, ccb);
xpt_done(ccb);
break;
case CMD_EAGAIN:
isp_free_pcmd(isp, ccb);
cam_freeze_devq(ccb->ccb_h.path);
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 100, 0);
ccb->ccb_h.status = CAM_REQUEUE_REQ;
xpt_done(ccb);
break;
case CMD_COMPLETE:
isp_done((struct ccb_scsiio *) ccb);
break;
default:
isp_prt(isp, ISP_LOGERR, "What's this? 0x%x at %d in file %s", error, __LINE__, __FILE__);
ccb->ccb_h.status = CAM_REQUEUE_REQ;
isp_free_pcmd(isp, ccb);
xpt_done(ccb);
}
break;
#ifdef ISP_TARGET_MODE
case XPT_EN_LUN: /* Enable/Disable LUN as a target */
if (ccb->cel.enable) {
isp_enable_lun(isp, ccb);
} else {
isp_disable_lun(isp, ccb);
}
break;
case XPT_IMMEDIATE_NOTIFY: /* Add Immediate Notify Resource */
case XPT_ACCEPT_TARGET_IO: /* Add Accept Target IO Resource */
{
tstate_t *tptr = get_lun_statep(isp, XS_CHANNEL(ccb), ccb->ccb_h.target_lun);
if (tptr == NULL) {
const char *str;
if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
str = "XPT_IMMEDIATE_NOTIFY";
else
str = "XPT_ACCEPT_TARGET_IO";
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path,
"%s: no state pointer found for %s\n",
__func__, str);
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
xpt_done(ccb);
break;
}
ccb->ccb_h.spriv_field0 = 0;
ccb->ccb_h.spriv_ptr1 = isp;
if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
ccb->atio.tag_id = 0;
SLIST_INSERT_HEAD(&tptr->atios, &ccb->ccb_h, sim_links.sle);
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
"Put FREE ATIO\n");
} else if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
ccb->cin1.seq_id = ccb->cin1.tag_id = 0;
SLIST_INSERT_HEAD(&tptr->inots, &ccb->ccb_h, sim_links.sle);
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
"Put FREE INOT\n");
}
ccb->ccb_h.status = CAM_REQ_INPROG;
break;
}
case XPT_NOTIFY_ACKNOWLEDGE: /* notify ack */
{
inot_private_data_t *ntp;
/*
* XXX: Because we cannot guarantee that the path information in the notify acknowledge ccb
* XXX: matches that for the immediate notify, we have to *search* for the notify structure
*/
/*
* All the relevant path information is in the associated immediate notify
*/
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "%s: [0x%x] NOTIFY ACKNOWLEDGE for 0x%x seen\n", __func__, ccb->cna2.tag_id, ccb->cna2.seq_id);
ntp = isp_find_ntpd(isp, XS_CHANNEL(ccb), ccb->cna2.tag_id, ccb->cna2.seq_id);
if (ntp == NULL) {
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "%s: [0x%x] XPT_NOTIFY_ACKNOWLEDGE of 0x%x cannot find ntp private data\n", __func__,
ccb->cna2.tag_id, ccb->cna2.seq_id);
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
xpt_done(ccb);
break;
}
if (isp_handle_platform_target_notify_ack(isp, &ntp->nt,
(ccb->ccb_h.flags & CAM_SEND_STATUS) ? ccb->cna2.arg : 0)) {
cam_freeze_devq(ccb->ccb_h.path);
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_REQUEUE_REQ;
break;
}
isp_put_ntpd(isp, XS_CHANNEL(ccb), ntp);
ccb->ccb_h.status = CAM_REQ_CMP;
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "%s: [0x%x] calling xpt_done for tag 0x%x\n", __func__, ccb->cna2.tag_id, ccb->cna2.seq_id);
xpt_done(ccb);
break;
}
case XPT_CONT_TARGET_IO:
isp_target_start_ctio(isp, ccb, FROM_CAM);
break;
#endif
case XPT_RESET_DEV: /* BDR the specified SCSI device */
tgt = ccb->ccb_h.target_id;
tgt |= (bus << 16);
error = isp_control(isp, ISPCTL_RESET_DEV, bus, tgt);
if (error) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
} else {
/*
* If we have a FC device, reset the Command
* Reference Number, because the target will expect
* that we re-start the CRN at 1 after a reset.
*/
if (IS_FC(isp))
isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
ccb->ccb_h.status = CAM_REQ_CMP;
}
xpt_done(ccb);
break;
case XPT_ABORT: /* Abort the specified CCB */
{
union ccb *accb = ccb->cab.abort_ccb;
switch (accb->ccb_h.func_code) {
#ifdef ISP_TARGET_MODE
case XPT_ACCEPT_TARGET_IO:
isp_abort_atio(isp, ccb);
break;
case XPT_IMMEDIATE_NOTIFY:
isp_abort_inot(isp, ccb);
break;
#endif
case XPT_SCSI_IO:
error = isp_control(isp, ISPCTL_ABORT_CMD, accb);
if (error) {
ccb->ccb_h.status = CAM_UA_ABORT;
} else {
ccb->ccb_h.status = CAM_REQ_CMP;
}
break;
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
}
/*
* This is not a queued CCB, so the caller expects it to be
* complete when control is returned.
*/
break;
}
#define IS_CURRENT_SETTINGS(c) (c->type == CTS_TYPE_CURRENT_SETTINGS)
case XPT_SET_TRAN_SETTINGS: /* Nexus Settings */
cts = &ccb->cts;
if (!IS_CURRENT_SETTINGS(cts)) {
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
tgt = cts->ccb_h.target_id;
if (IS_SCSI(isp)) {
struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
sdparam *sdp = SDPARAM(isp, bus);
uint16_t *dptr;
if (spi->valid == 0 && scsi->valid == 0) {
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
/*
* We always update (internally) from goal_flags
* so any request to change settings just gets
* vectored to that location.
*/
dptr = &sdp->isp_devparam[tgt].goal_flags;
if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
*dptr |= DPARM_DISC;
else
*dptr &= ~DPARM_DISC;
}
if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
*dptr |= DPARM_TQING;
else
*dptr &= ~DPARM_TQING;
}
if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
if (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
*dptr |= DPARM_WIDE;
else
*dptr &= ~DPARM_WIDE;
}
/*
* XXX: FIX ME
*/
if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) && (spi->valid & CTS_SPI_VALID_SYNC_RATE) && (spi->sync_period && spi->sync_offset)) {
*dptr |= DPARM_SYNC;
/*
* XXX: CHECK FOR LEGALITY
*/
sdp->isp_devparam[tgt].goal_period = spi->sync_period;
sdp->isp_devparam[tgt].goal_offset = spi->sync_offset;
} else {
*dptr &= ~DPARM_SYNC;
}
isp_prt(isp, ISP_LOGDEBUG0, "SET (%d.%d.%jx) to flags %x off %x per %x", bus, tgt, (uintmax_t)cts->ccb_h.target_lun, sdp->isp_devparam[tgt].goal_flags,
sdp->isp_devparam[tgt].goal_offset, sdp->isp_devparam[tgt].goal_period);
sdp->isp_devparam[tgt].dev_update = 1;
sdp->update = 1;
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_GET_TRAN_SETTINGS:
cts = &ccb->cts;
tgt = cts->ccb_h.target_id;
if (IS_FC(isp)) {
fcparam *fcp = FCPARAM(isp, bus);
struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
struct ccb_trans_settings_fc *fc = &cts->xport_specific.fc;
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_FC;
cts->transport_version = 0;
scsi->valid = CTS_SCSI_VALID_TQ;
scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
fc->valid = CTS_FC_VALID_SPEED;
fc->bitrate = 100000;
fc->bitrate *= fcp->isp_gbspeed;
if (tgt < MAX_FC_TARG) {
fcportdb_t *lp = &fcp->portdb[tgt];
fc->wwnn = lp->node_wwn;
fc->wwpn = lp->port_wwn;
fc->port = lp->portid;
fc->valid |= CTS_FC_VALID_WWNN | CTS_FC_VALID_WWPN | CTS_FC_VALID_PORT;
}
} else {
struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
sdparam *sdp = SDPARAM(isp, bus);
uint16_t dval, pval, oval;
if (IS_CURRENT_SETTINGS(cts)) {
sdp->isp_devparam[tgt].dev_refresh = 1;
sdp->update = 1;
(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
dval = sdp->isp_devparam[tgt].actv_flags;
oval = sdp->isp_devparam[tgt].actv_offset;
pval = sdp->isp_devparam[tgt].actv_period;
} else {
dval = sdp->isp_devparam[tgt].nvrm_flags;
oval = sdp->isp_devparam[tgt].nvrm_offset;
pval = sdp->isp_devparam[tgt].nvrm_period;
}
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_SPI;
cts->transport_version = 2;
spi->valid = 0;
scsi->valid = 0;
spi->flags = 0;
scsi->flags = 0;
if (dval & DPARM_DISC) {
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
}
if ((dval & DPARM_SYNC) && oval && pval) {
spi->sync_offset = oval;
spi->sync_period = pval;
} else {
spi->sync_offset = 0;
spi->sync_period = 0;
}
spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
spi->valid |= CTS_SPI_VALID_SYNC_RATE;
spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
if (dval & DPARM_WIDE) {
spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
} else {
spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
}
if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
scsi->valid = CTS_SCSI_VALID_TQ;
if (dval & DPARM_TQING) {
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
}
spi->valid |= CTS_SPI_VALID_DISC;
}
isp_prt(isp, ISP_LOGDEBUG0, "GET %s (%d.%d.%jx) to flags %x off %x per %x", IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM",
bus, tgt, (uintmax_t)cts->ccb_h.target_lun, dval, oval, pval);
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_CALC_GEOMETRY:
cam_calc_geometry(&ccb->ccg, 1);
xpt_done(ccb);
break;
case XPT_RESET_BUS: /* Reset the specified bus */
error = isp_control(isp, ISPCTL_RESET_BUS, bus);
if (error) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
break;
}
if (bootverbose) {
xpt_print(ccb->ccb_h.path, "reset bus on channel %d\n", bus);
}
if (IS_FC(isp)) {
xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, 0);
} else {
xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, 0);
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_TERM_IO: /* Terminate the I/O process */
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
case XPT_SET_SIM_KNOB: /* Set SIM knobs */
{
struct ccb_sim_knob *kp = &ccb->knob;
fcparam *fcp;
if (!IS_FC(isp)) {
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
fcp = FCPARAM(isp, bus);
if (kp->xport_specific.fc.valid & KNOB_VALID_ADDRESS) {
fcp->isp_wwnn = ISP_FC_PC(isp, bus)->def_wwnn = kp->xport_specific.fc.wwnn;
fcp->isp_wwpn = ISP_FC_PC(isp, bus)->def_wwpn = kp->xport_specific.fc.wwpn;
isp_prt(isp, ISP_LOGALL, "Setting Channel %d wwns to 0x%jx 0x%jx", bus, fcp->isp_wwnn, fcp->isp_wwpn);
}
ccb->ccb_h.status = CAM_REQ_CMP;
if (kp->xport_specific.fc.valid & KNOB_VALID_ROLE) {
int rchange = 0;
int newrole = 0;
switch (kp->xport_specific.fc.role) {
case KNOB_ROLE_NONE:
if (fcp->role != ISP_ROLE_NONE) {
rchange = 1;
newrole = ISP_ROLE_NONE;
}
break;
case KNOB_ROLE_TARGET:
if (fcp->role != ISP_ROLE_TARGET) {
rchange = 1;
newrole = ISP_ROLE_TARGET;
}
break;
case KNOB_ROLE_INITIATOR:
if (fcp->role != ISP_ROLE_INITIATOR) {
rchange = 1;
newrole = ISP_ROLE_INITIATOR;
}
break;
case KNOB_ROLE_BOTH:
if (fcp->role != ISP_ROLE_BOTH) {
rchange = 1;
newrole = ISP_ROLE_BOTH;
}
break;
}
if (rchange) {
ISP_PATH_PRT(isp, ISP_LOGCONFIG, ccb->ccb_h.path, "changing role on from %d to %d\n", fcp->role, newrole);
if (isp_control(isp, ISPCTL_CHANGE_ROLE,
bus, newrole) != 0) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
break;
}
}
}
xpt_done(ccb);
break;
}
case XPT_GET_SIM_KNOB_OLD: /* Get SIM knobs -- compat value */
case XPT_GET_SIM_KNOB: /* Get SIM knobs */
{
struct ccb_sim_knob *kp = &ccb->knob;
if (IS_FC(isp)) {
fcparam *fcp;
fcp = FCPARAM(isp, bus);
kp->xport_specific.fc.wwnn = fcp->isp_wwnn;
kp->xport_specific.fc.wwpn = fcp->isp_wwpn;
switch (fcp->role) {
case ISP_ROLE_NONE:
kp->xport_specific.fc.role = KNOB_ROLE_NONE;
break;
case ISP_ROLE_TARGET:
kp->xport_specific.fc.role = KNOB_ROLE_TARGET;
break;
case ISP_ROLE_INITIATOR:
kp->xport_specific.fc.role = KNOB_ROLE_INITIATOR;
break;
case ISP_ROLE_BOTH:
kp->xport_specific.fc.role = KNOB_ROLE_BOTH;
break;
}
kp->xport_specific.fc.valid = KNOB_VALID_ADDRESS | KNOB_VALID_ROLE;
ccb->ccb_h.status = CAM_REQ_CMP;
} else {
ccb->ccb_h.status = CAM_REQ_INVALID;
}
xpt_done(ccb);
break;
}
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1;
#ifdef ISP_TARGET_MODE
if (IS_FC(isp) && ISP_CAP_TMODE(isp) && ISP_CAP_SCCFW(isp))
cpi->target_sprt = PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
else
#endif
cpi->target_sprt = 0;
cpi->hba_eng_cnt = 0;
cpi->max_target = ISP_MAX_TARGETS(isp) - 1;
cpi->max_lun = ISP_MAX_LUNS(isp) == 0 ?
255 : ISP_MAX_LUNS(isp) - 1;
cpi->bus_id = cam_sim_bus(sim);
if (sizeof (bus_size_t) > 4)
cpi->maxio = (ISP_NSEG64_MAX - 1) * PAGE_SIZE;
else
cpi->maxio = (ISP_NSEG_MAX - 1) * PAGE_SIZE;
if (IS_FC(isp)) {
fcparam *fcp = FCPARAM(isp, bus);
cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
cpi->hba_misc |= PIM_EXTLUNS | PIM_NOSCAN;
/*
* Because our loop ID can shift from time to time,
* make our initiator ID out of range of our bus.
*/
cpi->initiator_id = cpi->max_target + 1;
/*
* Set base transfer capabilities for Fibre Channel, for this HBA.
*/
if (IS_25XX(isp)) {
cpi->base_transfer_speed = 8000000;
} else if (IS_24XX(isp)) {
cpi->base_transfer_speed = 4000000;
} else if (IS_23XX(isp)) {
cpi->base_transfer_speed = 2000000;
} else {
cpi->base_transfer_speed = 1000000;
}
cpi->hba_inquiry = PI_TAG_ABLE;
cpi->transport = XPORT_FC;
cpi->transport_version = 0;
cpi->xport_specific.fc.wwnn = fcp->isp_wwnn;
cpi->xport_specific.fc.wwpn = fcp->isp_wwpn;
cpi->xport_specific.fc.port = fcp->isp_portid;
cpi->xport_specific.fc.bitrate = fcp->isp_gbspeed * 1000;
} else {
sdparam *sdp = SDPARAM(isp, bus);
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
cpi->hba_misc = PIM_UNMAPPED;
cpi->initiator_id = sdp->isp_initiator_id;
cpi->base_transfer_speed = 3300;
cpi->transport = XPORT_SPI;
cpi->transport_version = 2;
}
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strlcpy(cpi->hba_vid, "Qlogic", HBA_IDLEN);
strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
cpi->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
void
isp_done(XS_T *sccb)
{
ispsoftc_t *isp = XS_ISP(sccb);
uint32_t status;
if (XS_NOERR(sccb))
XS_SETERR(sccb, CAM_REQ_CMP);
if ((sccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && (sccb->scsi_status != SCSI_STATUS_OK)) {
sccb->ccb_h.status &= ~CAM_STATUS_MASK;
if ((sccb->scsi_status == SCSI_STATUS_CHECK_COND) && (sccb->ccb_h.status & CAM_AUTOSNS_VALID) == 0) {
sccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
} else {
sccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
}
}
sccb->ccb_h.status &= ~CAM_SIM_QUEUED;
status = sccb->ccb_h.status & CAM_STATUS_MASK;
if (status != CAM_REQ_CMP &&
(sccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
sccb->ccb_h.status |= CAM_DEV_QFRZN;
xpt_freeze_devq(sccb->ccb_h.path, 1);
}
if (ISP_PCMD(sccb)) {
if (callout_active(&PISP_PCMD(sccb)->wdog))
callout_stop(&PISP_PCMD(sccb)->wdog);
isp_free_pcmd(isp, (union ccb *) sccb);
}
xpt_done((union ccb *) sccb);
}
void
isp_async(ispsoftc_t *isp, ispasync_t cmd, ...)
{
int bus;
static const char prom[] = "Chan %d [%d] WWPN 0x%16jx PortID 0x%06x handle 0x%x %s %s";
char buf[64];
char *msg = NULL;
target_id_t tgt = 0;
fcportdb_t *lp;
struct isp_fc *fc;
struct cam_path *tmppath;
struct ac_contract ac;
struct ac_device_changed *adc;
va_list ap;
switch (cmd) {
case ISPASYNC_NEW_TGT_PARAMS:
{
struct ccb_trans_settings_scsi *scsi;
struct ccb_trans_settings_spi *spi;
int flags, tgt;
sdparam *sdp;
struct ccb_trans_settings cts;
memset(&cts, 0, sizeof (struct ccb_trans_settings));
va_start(ap, cmd);
bus = va_arg(ap, int);
tgt = va_arg(ap, int);
va_end(ap);
sdp = SDPARAM(isp, bus);
if (xpt_create_path(&tmppath, NULL, cam_sim_path(ISP_SPI_PC(isp, bus)->sim), tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
isp_prt(isp, ISP_LOGWARN, "isp_async cannot make temp path for %d.%d", tgt, bus);
break;
}
flags = sdp->isp_devparam[tgt].actv_flags;
cts.type = CTS_TYPE_CURRENT_SETTINGS;
cts.protocol = PROTO_SCSI;
cts.transport = XPORT_SPI;
scsi = &cts.proto_specific.scsi;
spi = &cts.xport_specific.spi;
if (flags & DPARM_TQING) {
scsi->valid |= CTS_SCSI_VALID_TQ;
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
}
if (flags & DPARM_DISC) {
spi->valid |= CTS_SPI_VALID_DISC;
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
}
spi->flags |= CTS_SPI_VALID_BUS_WIDTH;
if (flags & DPARM_WIDE) {
spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
} else {
spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
}
if (flags & DPARM_SYNC) {
spi->valid |= CTS_SPI_VALID_SYNC_RATE;
spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
spi->sync_period = sdp->isp_devparam[tgt].actv_period;
spi->sync_offset = sdp->isp_devparam[tgt].actv_offset;
}
isp_prt(isp, ISP_LOGDEBUG2, "NEW_TGT_PARAMS bus %d tgt %d period %x offset %x flags %x", bus, tgt, sdp->isp_devparam[tgt].actv_period, sdp->isp_devparam[tgt].actv_offset, flags);
xpt_setup_ccb(&cts.ccb_h, tmppath, 1);
xpt_async(AC_TRANSFER_NEG, tmppath, &cts);
xpt_free_path(tmppath);
break;
}
case ISPASYNC_BUS_RESET:
{
va_start(ap, cmd);
bus = va_arg(ap, int);
va_end(ap);
isp_prt(isp, ISP_LOGINFO, "SCSI bus reset on bus %d detected", bus);
if (IS_FC(isp)) {
xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, NULL);
} else {
xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, NULL);
}
break;
}
case ISPASYNC_LOOP_RESET:
{
uint16_t lipp;
fcparam *fcp;
va_start(ap, cmd);
bus = va_arg(ap, int);
va_end(ap);
lipp = ISP_READ(isp, OUTMAILBOX1);
fcp = FCPARAM(isp, bus);
isp_prt(isp, ISP_LOGINFO, "Chan %d LOOP Reset, LIP primitive %x", bus, lipp);
/*
* Per FCP-4, a Reset LIP should result in a CRN reset. Other
* LIPs and loop up/down events should never reset the CRN. For
* an as of yet unknown reason, 24xx series cards (and
* potentially others) can interrupt with a LIP Reset status
* when no LIP reset came down the wire. Additionally, the LIP
* primitive accompanying this status would not be a valid LIP
* Reset primitive, but some variation of an invalid AL_PA
* LIP. As a result, we have to verify the AL_PD in the LIP
* addresses our port before blindly resetting.
*/
if (FCP_IS_DEST_ALPD(fcp, (lipp & 0x00FF)))
isp_fcp_reset_crn(isp, bus, /*tgt*/0, /*tgt_set*/ 0);
isp_loop_changed(isp, bus);
break;
}
case ISPASYNC_LIP:
if (msg == NULL)
msg = "LIP Received";
/* FALLTHROUGH */
case ISPASYNC_LOOP_DOWN:
if (msg == NULL)
msg = "LOOP Down";
/* FALLTHROUGH */
case ISPASYNC_LOOP_UP:
if (msg == NULL)
msg = "LOOP Up";
va_start(ap, cmd);
bus = va_arg(ap, int);
va_end(ap);
isp_loop_changed(isp, bus);
isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
break;
case ISPASYNC_DEV_ARRIVED:
va_start(ap, cmd);
bus = va_arg(ap, int);
lp = va_arg(ap, fcportdb_t *);
va_end(ap);
fc = ISP_FC_PC(isp, bus);
tgt = FC_PORTDB_TGT(isp, bus, lp);
isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "arrived");
if ((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) &&
(lp->prli_word3 & PRLI_WD3_TARGET_FUNCTION)) {
lp->is_target = 1;
isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
isp_make_here(isp, lp, bus, tgt);
}
if ((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
(lp->prli_word3 & PRLI_WD3_INITIATOR_FUNCTION)) {
lp->is_initiator = 1;
ac.contract_number = AC_CONTRACT_DEV_CHG;
adc = (struct ac_device_changed *) ac.contract_data;
adc->wwpn = lp->port_wwn;
adc->port = lp->portid;
adc->target = tgt;
adc->arrived = 1;
xpt_async(AC_CONTRACT, fc->path, &ac);
}
break;
case ISPASYNC_DEV_CHANGED:
case ISPASYNC_DEV_STAYED:
{
int crn_reset_done;
crn_reset_done = 0;
va_start(ap, cmd);
bus = va_arg(ap, int);
lp = va_arg(ap, fcportdb_t *);
va_end(ap);
fc = ISP_FC_PC(isp, bus);
tgt = FC_PORTDB_TGT(isp, bus, lp);
isp_gen_role_str(buf, sizeof (buf), lp->new_prli_word3);
if (cmd == ISPASYNC_DEV_CHANGED)
isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->new_portid, lp->handle, buf, "changed");
else
isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "stayed");
if (lp->is_target !=
((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) &&
(lp->new_prli_word3 & PRLI_WD3_TARGET_FUNCTION))) {
lp->is_target = !lp->is_target;
if (lp->is_target) {
if (cmd == ISPASYNC_DEV_CHANGED) {
isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
crn_reset_done = 1;
}
isp_make_here(isp, lp, bus, tgt);
} else {
isp_make_gone(isp, lp, bus, tgt);
if (cmd == ISPASYNC_DEV_CHANGED) {
isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
crn_reset_done = 1;
}
}
}
if (lp->is_initiator !=
((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
(lp->new_prli_word3 & PRLI_WD3_INITIATOR_FUNCTION))) {
lp->is_initiator = !lp->is_initiator;
ac.contract_number = AC_CONTRACT_DEV_CHG;
adc = (struct ac_device_changed *) ac.contract_data;
adc->wwpn = lp->port_wwn;
adc->port = lp->portid;
adc->target = tgt;
adc->arrived = lp->is_initiator;
xpt_async(AC_CONTRACT, fc->path, &ac);
}
if ((cmd == ISPASYNC_DEV_CHANGED) &&
(crn_reset_done == 0))
isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
break;
}
case ISPASYNC_DEV_GONE:
va_start(ap, cmd);
bus = va_arg(ap, int);
lp = va_arg(ap, fcportdb_t *);
va_end(ap);
fc = ISP_FC_PC(isp, bus);
tgt = FC_PORTDB_TGT(isp, bus, lp);
/*
* If this has a virtual target or initiator set the isp_gdt
* timer running on it to delay its departure.
*/
isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
if (lp->is_target || lp->is_initiator) {
lp->state = FC_PORTDB_STATE_ZOMBIE;
lp->gone_timer = fc->gone_device_time;
isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone zombie");
if (fc->ready && !callout_active(&fc->gdt)) {
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Starting Gone Device Timer with %u seconds time now %lu", bus, lp->gone_timer, (unsigned long)time_uptime);
callout_reset(&fc->gdt, hz, isp_gdt, fc);
}
break;
}
isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone");
break;
case ISPASYNC_CHANGE_NOTIFY:
{
char *msg;
int evt, nphdl, nlstate, portid, reason;
va_start(ap, cmd);
bus = va_arg(ap, int);
evt = va_arg(ap, int);
if (evt == ISPASYNC_CHANGE_PDB) {
nphdl = va_arg(ap, int);
nlstate = va_arg(ap, int);
reason = va_arg(ap, int);
} else if (evt == ISPASYNC_CHANGE_SNS) {
portid = va_arg(ap, int);
} else {
nphdl = NIL_HANDLE;
nlstate = reason = 0;
}
va_end(ap);
if (evt == ISPASYNC_CHANGE_PDB) {
int tgt_set = 0;
msg = "Port Database Changed";
isp_prt(isp, ISP_LOGINFO,
"Chan %d %s (nphdl 0x%x state 0x%x reason 0x%x)",
bus, msg, nphdl, nlstate, reason);
/*
* Port database syncs are not sufficient for
* determining that logins or logouts are done on the
* loop, but this information is directly available from
* the reason code from the incoming mbox. We must reset
* the fcp crn on these events according to FCP-4
*/
switch (reason) {
case PDB24XX_AE_IMPL_LOGO_1:
case PDB24XX_AE_IMPL_LOGO_2:
case PDB24XX_AE_IMPL_LOGO_3:
case PDB24XX_AE_PLOGI_RCVD:
case PDB24XX_AE_PRLI_RCVD:
case PDB24XX_AE_PRLO_RCVD:
case PDB24XX_AE_LOGO_RCVD:
case PDB24XX_AE_PLOGI_DONE:
case PDB24XX_AE_PRLI_DONE:
/*
* If the event is not global, twiddle tgt and
* tgt_set to nominate only the target
* associated with the nphdl.
*/
if (nphdl != PDB24XX_AE_GLOBAL) {
/* Break if we don't yet have the pdb */
if (!isp_find_pdb_by_handle(isp, bus, nphdl, &lp))
break;
tgt = FC_PORTDB_TGT(isp, bus, lp);
tgt_set = 1;
}
isp_fcp_reset_crn(isp, bus, tgt, tgt_set);
break;
default:
break; /* NOP */
}
} else if (evt == ISPASYNC_CHANGE_SNS) {
msg = "Name Server Database Changed";
isp_prt(isp, ISP_LOGINFO, "Chan %d %s (PortID 0x%06x)",
bus, msg, portid);
} else {
msg = "Other Change Notify";
isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
}
isp_loop_changed(isp, bus);
break;
}
#ifdef ISP_TARGET_MODE
case ISPASYNC_TARGET_NOTIFY:
{
isp_notify_t *notify;
va_start(ap, cmd);
notify = va_arg(ap, isp_notify_t *);
va_end(ap);
switch (notify->nt_ncode) {
case NT_ABORT_TASK:
case NT_ABORT_TASK_SET:
case NT_CLEAR_ACA:
case NT_CLEAR_TASK_SET:
case NT_LUN_RESET:
case NT_TARGET_RESET:
case NT_QUERY_TASK_SET:
case NT_QUERY_ASYNC_EVENT:
/*
* These are task management functions.
*/
isp_handle_platform_target_tmf(isp, notify);
break;
case NT_BUS_RESET:
case NT_LIP_RESET:
case NT_LINK_UP:
case NT_LINK_DOWN:
case NT_HBA_RESET:
/*
* No action need be taken here.
*/
break;
case NT_GLOBAL_LOGOUT:
case NT_LOGOUT:
/*
* This is device arrival/departure notification
*/
isp_handle_platform_target_notify_ack(isp, notify, 0);
break;
case NT_SRR:
isp_handle_platform_srr(isp, notify);
break;
default:
isp_prt(isp, ISP_LOGALL, "target notify code 0x%x", notify->nt_ncode);
isp_handle_platform_target_notify_ack(isp, notify, 0);
break;
}
break;
}
case ISPASYNC_TARGET_NOTIFY_ACK:
{
void *inot;
va_start(ap, cmd);
inot = va_arg(ap, void *);
va_end(ap);
if (isp_notify_ack(isp, inot)) {
isp_tna_t *tp = malloc(sizeof (*tp), M_DEVBUF, M_NOWAIT);
if (tp) {
tp->isp = isp;
memcpy(tp->data, inot, sizeof (tp->data));
tp->not = tp->data;
callout_init_mtx(&tp->timer, &isp->isp_lock, 0);
callout_reset(&tp->timer, 5,
isp_refire_notify_ack, tp);
} else {
isp_prt(isp, ISP_LOGERR, "you lose- cannot allocate a notify refire");
}
}
break;
}
case ISPASYNC_TARGET_ACTION:
{
isphdr_t *hp;
va_start(ap, cmd);
hp = va_arg(ap, isphdr_t *);
va_end(ap);
switch (hp->rqs_entry_type) {
case RQSTYPE_ATIO:
isp_handle_platform_atio7(isp, (at7_entry_t *) hp);
break;
case RQSTYPE_ATIO2:
isp_handle_platform_atio2(isp, (at2_entry_t *) hp);
break;
case RQSTYPE_CTIO7:
case RQSTYPE_CTIO3:
case RQSTYPE_CTIO2:
case RQSTYPE_CTIO:
isp_handle_platform_ctio(isp, hp);
break;
default:
isp_prt(isp, ISP_LOGWARN, "%s: unhandled target action 0x%x",
__func__, hp->rqs_entry_type);
break;
}
break;
}
#endif
case ISPASYNC_FW_CRASH:
{
uint16_t mbox1, mbox6;
mbox1 = ISP_READ(isp, OUTMAILBOX1);
if (IS_DUALBUS(isp)) {
mbox6 = ISP_READ(isp, OUTMAILBOX6);
} else {
mbox6 = 0;
}
isp_prt(isp, ISP_LOGERR, "Internal Firmware Error on bus %d @ RISC Address 0x%x", mbox6, mbox1);
#if 0
mbox1 = isp->isp_osinfo.mbox_sleep_ok;
isp->isp_osinfo.mbox_sleep_ok = 0;
isp_reinit(isp, 1);
isp->isp_osinfo.mbox_sleep_ok = mbox1;
isp_async(isp, ISPASYNC_FW_RESTARTED, NULL);
#endif
break;
}
default:
isp_prt(isp, ISP_LOGERR, "unknown isp_async event %d", cmd);
break;
}
}
uint64_t
isp_default_wwn(ispsoftc_t * isp, int chan, int isactive, int iswwnn)
{
uint64_t seed;
struct isp_fc *fc = ISP_FC_PC(isp, chan);
/* First try to use explicitly configured WWNs. */
seed = iswwnn ? fc->def_wwnn : fc->def_wwpn;
if (seed)
return (seed);
/* Otherwise try to use WWNs from NVRAM. */
if (isactive) {
seed = iswwnn ? FCPARAM(isp, chan)->isp_wwnn_nvram :
FCPARAM(isp, chan)->isp_wwpn_nvram;
if (seed)
return (seed);
}
/* If still no WWNs, try to steal them from the first channel. */
if (chan > 0) {
seed = iswwnn ? ISP_FC_PC(isp, 0)->def_wwnn :
ISP_FC_PC(isp, 0)->def_wwpn;
if (seed == 0) {
seed = iswwnn ? FCPARAM(isp, 0)->isp_wwnn_nvram :
FCPARAM(isp, 0)->isp_wwpn_nvram;
}
}
/* If still nothing -- improvise. */
if (seed == 0) {
seed = 0x400000007F000000ull + device_get_unit(isp->isp_dev);
if (!iswwnn)
seed ^= 0x0100000000000000ULL;
}
/* For additional channels we have to improvise even more. */
if (!iswwnn && chan > 0) {
/*
* We'll stick our channel number plus one first into bits
* 57..59 and thence into bits 52..55 which allows for 8 bits
* of channel which is enough for our maximum of 255 channels.
*/
seed ^= 0x0100000000000000ULL;
seed ^= ((uint64_t) (chan + 1) & 0xf) << 56;
seed ^= ((uint64_t) ((chan + 1) >> 4) & 0xf) << 52;
}
return (seed);
}
void
isp_prt(ispsoftc_t *isp, int level, const char *fmt, ...)
{
int loc;
char lbuf[200];
va_list ap;
if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
return;
}
snprintf(lbuf, sizeof (lbuf), "%s: ", device_get_nameunit(isp->isp_dev));
loc = strlen(lbuf);
va_start(ap, fmt);
vsnprintf(&lbuf[loc], sizeof (lbuf) - loc - 1, fmt, ap);
va_end(ap);
printf("%s\n", lbuf);
}
void
isp_xs_prt(ispsoftc_t *isp, XS_T *xs, int level, const char *fmt, ...)
{
va_list ap;
if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
return;
}
xpt_print_path(xs->ccb_h.path);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
}
uint64_t
isp_nanotime_sub(struct timespec *b, struct timespec *a)
{
uint64_t elapsed;
struct timespec x;
timespecsub(b, a, &x);
elapsed = GET_NANOSEC(&x);
if (elapsed == 0)
elapsed++;
return (elapsed);
}
int
isp_mbox_acquire(ispsoftc_t *isp)
{
if (isp->isp_osinfo.mboxbsy) {
return (1);
} else {
isp->isp_osinfo.mboxcmd_done = 0;
isp->isp_osinfo.mboxbsy = 1;
return (0);
}
}
void
isp_mbox_wait_complete(ispsoftc_t *isp, mbreg_t *mbp)
{
u_int t, to;
to = (mbp->timeout == 0) ? MBCMD_DEFAULT_TIMEOUT : mbp->timeout;
if (isp->isp_osinfo.mbox_sleep_ok) {
isp->isp_osinfo.mbox_sleep_ok = 0;
isp->isp_osinfo.mbox_sleeping = 1;
msleep_sbt(&isp->isp_osinfo.mboxcmd_done, &isp->isp_lock,
PRIBIO, "ispmbx_sleep", to * SBT_1US, 0, 0);
isp->isp_osinfo.mbox_sleep_ok = 1;
isp->isp_osinfo.mbox_sleeping = 0;
} else {
for (t = 0; t < to; t += 100) {
if (isp->isp_osinfo.mboxcmd_done)
break;
ISP_RUN_ISR(isp);
if (isp->isp_osinfo.mboxcmd_done)
break;
ISP_DELAY(100);
}
}
if (isp->isp_osinfo.mboxcmd_done == 0) {
isp_prt(isp, ISP_LOGWARN, "%s Mailbox Command (0x%x) Timeout (%uus) (%s:%d)",
isp->isp_osinfo.mbox_sleep_ok? "Interrupting" : "Polled",
isp->isp_lastmbxcmd, to, mbp->func, mbp->lineno);
mbp->param[0] = MBOX_TIMEOUT;
isp->isp_osinfo.mboxcmd_done = 1;
}
}
void
isp_mbox_notify_done(ispsoftc_t *isp)
{
isp->isp_osinfo.mboxcmd_done = 1;
if (isp->isp_osinfo.mbox_sleeping)
wakeup(&isp->isp_osinfo.mboxcmd_done);
}
void
isp_mbox_release(ispsoftc_t *isp)
{
isp->isp_osinfo.mboxbsy = 0;
}
int
isp_fc_scratch_acquire(ispsoftc_t *isp, int chan)
{
int ret = 0;
if (isp->isp_osinfo.pc.fc[chan].fcbsy) {
ret = -1;
} else {
isp->isp_osinfo.pc.fc[chan].fcbsy = 1;
}
return (ret);
}
void
isp_platform_intr(void *arg)
{
ispsoftc_t *isp = arg;
ISP_LOCK(isp);
ISP_RUN_ISR(isp);
ISP_UNLOCK(isp);
}
void
isp_platform_intr_resp(void *arg)
{
ispsoftc_t *isp = arg;
ISP_LOCK(isp);
isp_intr_respq(isp);
ISP_UNLOCK(isp);
/* We have handshake enabled, so explicitly complete interrupt */
ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
}
void
isp_platform_intr_atio(void *arg)
{
ispsoftc_t *isp = arg;
ISP_LOCK(isp);
#ifdef ISP_TARGET_MODE
isp_intr_atioq(isp);
#endif
ISP_UNLOCK(isp);
/* We have handshake enabled, so explicitly complete interrupt */
ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
}
void
isp_common_dmateardown(ispsoftc_t *isp, struct ccb_scsiio *csio, uint32_t hdl)
{
if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTREAD);
} else {
bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTWRITE);
}
bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
}
/*
* Reset the command reference number for all LUNs on a specific target
* (needed when a target arrives again) or for all targets on a port
* (needed for events like a LIP).
*/
void
isp_fcp_reset_crn(ispsoftc_t *isp, int chan, uint32_t tgt, int tgt_set)
{
struct isp_fc *fc = ISP_FC_PC(isp, chan);
struct isp_nexus *nxp;
int i;
if (tgt_set == 0)
isp_prt(isp, ISP_LOGDEBUG0,
"Chan %d resetting CRN on all targets", chan);
else
isp_prt(isp, ISP_LOGDEBUG0,
"Chan %d resetting CRN on target %u", chan, tgt);
for (i = 0; i < NEXUS_HASH_WIDTH; i++) {
for (nxp = fc->nexus_hash[i]; nxp != NULL; nxp = nxp->next) {
if (tgt_set == 0 || tgt == nxp->tgt)
nxp->crnseed = 0;
}
}
}
int
isp_fcp_next_crn(ispsoftc_t *isp, uint8_t *crnp, XS_T *cmd)
{
lun_id_t lun;
uint32_t chan, tgt;
struct isp_fc *fc;
struct isp_nexus *nxp;
int idx;
if (IS_2100(isp))
return (0);
chan = XS_CHANNEL(cmd);
tgt = XS_TGT(cmd);
lun = XS_LUN(cmd);
fc = &isp->isp_osinfo.pc.fc[chan];
idx = NEXUS_HASH(tgt, lun);
nxp = fc->nexus_hash[idx];
while (nxp) {
if (nxp->tgt == tgt && nxp->lun == lun)
break;
nxp = nxp->next;
}
if (nxp == NULL) {
nxp = fc->nexus_free_list;
if (nxp == NULL) {
nxp = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_ZERO|M_NOWAIT);
if (nxp == NULL) {
return (-1);
}
} else {
fc->nexus_free_list = nxp->next;
}
nxp->tgt = tgt;
nxp->lun = lun;
nxp->next = fc->nexus_hash[idx];
fc->nexus_hash[idx] = nxp;
}
if (nxp->crnseed == 0)
nxp->crnseed = 1;
*crnp = nxp->crnseed++;
return (0);
}
/*
* We enter with the lock held
*/
void
isp_timer(void *arg)
{
ispsoftc_t *isp = arg;
#ifdef ISP_TARGET_MODE
isp_tmcmd_restart(isp);
#endif
callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
}
isp_ecmd_t *
isp_get_ecmd(ispsoftc_t *isp)
{
isp_ecmd_t *ecmd = isp->isp_osinfo.ecmd_free;
if (ecmd) {
isp->isp_osinfo.ecmd_free = ecmd->next;
}
return (ecmd);
}
void
isp_put_ecmd(ispsoftc_t *isp, isp_ecmd_t *ecmd)
{
ecmd->next = isp->isp_osinfo.ecmd_free;
isp->isp_osinfo.ecmd_free = ecmd;
}
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