Make the hpt27xx(4) driver MPSAFE.

- Use the existing vbus locks instead of Giant for the CAM sim lock.
- Use callout(9) instead of timeout(9).
- Mark the interrupt handler as MPSAFE.
- Don't attempt to pass data in the softc from probe() to attach().

Reviewed by:	Steve Chang <ychang@highpoint-tech.com>
Assisted by:	delphij
This commit is contained in:
John Baldwin 2014-06-09 18:15:05 +00:00
parent 348c44a5be
commit 238b419f41
3 changed files with 51 additions and 47 deletions

View file

@ -288,9 +288,9 @@ void os_request_timer(void * osext, HPT_U32 interval)
PVBUS_EXT vbus_ext = osext;
HPT_ASSERT(vbus_ext->ext_type==EXT_TYPE_VBUS);
untimeout(os_timer_for_ldm, vbus_ext, vbus_ext->timer);
vbus_ext->timer = timeout(os_timer_for_ldm, vbus_ext, interval * hz / 1000000);
callout_reset(&vbus_ext->timer, interval * hz / 1000000,
os_timer_for_ldm, vbus_ext);
}
HPT_TIME os_query_time(void)

View file

@ -31,12 +31,11 @@
#include <dev/hpt27xx/os_bsd.h>
#include <dev/hpt27xx/hptintf.h>
static int hpt_probe(device_t dev)
static HIM *hpt_match(device_t dev)
{
PCI_ID pci_id;
HIM *him;
int i;
PHBA hba;
for (him = him_list; him; him = him->next) {
for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
@ -44,18 +43,25 @@ static int hpt_probe(device_t dev)
him->get_controller_count(&pci_id,0,0);
if ((pci_get_vendor(dev) == pci_id.vid) &&
(pci_get_device(dev) == pci_id.did)){
KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
));
device_set_desc(dev, him->name);
hba = (PHBA)device_get_softc(dev);
memset(hba, 0, sizeof(HBA));
hba->ext_type = EXT_TYPE_HBA;
hba->ldm_adapter.him = him;
return (BUS_PROBE_DEFAULT);
return (him);
}
}
}
return (NULL);
}
static int hpt_probe(device_t dev)
{
HIM *him;
him = hpt_match(dev);
if (him != NULL) {
KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
));
device_set_desc(dev, him->name);
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
@ -63,14 +69,17 @@ static int hpt_probe(device_t dev)
static int hpt_attach(device_t dev)
{
PHBA hba = (PHBA)device_get_softc(dev);
HIM *him = hba->ldm_adapter.him;
HIM *him;
PCI_ID pci_id;
HPT_UINT size;
PVBUS vbus;
PVBUS_EXT vbus_ext;
KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
him = hpt_match(dev);
hba->ext_type = EXT_TYPE_HBA;
hba->ldm_adapter.him = him;
#if __FreeBSD_version >=440000
pci_enable_busmaster(dev);
#endif
@ -93,7 +102,7 @@ static int hpt_attach(device_t dev)
if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
free(hba->ldm_adapter.him_handle, M_DEVBUF);
return -1;
return ENXIO;
}
os_printk("adapter at PCI %d:%d:%d, IRQ %d",
@ -104,7 +113,7 @@ static int hpt_attach(device_t dev)
vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
if (!vbus_ext) {
free(hba->ldm_adapter.him_handle, M_DEVBUF);
return -1;
return ENXIO;
}
memset(vbus_ext, 0, sizeof(VBUS_EXT));
vbus_ext->ext_type = EXT_TYPE_VBUS;
@ -119,7 +128,7 @@ static int hpt_attach(device_t dev)
vbus_ext->hba_list = hba;
break;
}
}
}
return 0;
}
@ -431,8 +440,8 @@ static void os_cmddone(PCOMMAND pCmd)
union ccb *ccb = ext->ccb;
KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
untimeout(hpt_timeout, pCmd, ext->timeout_ch);
callout_stop(&ext->timeout);
switch(pCmd->Result) {
case RETURN_SUCCESS:
@ -510,7 +519,7 @@ static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs
BUS_DMASYNC_PREWRITE);
}
}
ext->timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
callout_reset(&ext->timeout, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
ldm_queue_cmd(pCmd);
}
@ -727,18 +736,15 @@ static void hpt_action(struct cam_sim *sim, union ccb *ccb)
KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
hpt_assert_vbus_locked(vbus_ext);
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO:
hpt_lock_vbus(vbus_ext);
hpt_scsi_io(vbus_ext, ccb);
hpt_unlock_vbus(vbus_ext);
return;
case XPT_RESET_BUS:
hpt_lock_vbus(vbus_ext);
ldm_reset_vbus((PVBUS)vbus_ext->vbus);
hpt_unlock_vbus(vbus_ext);
break;
case XPT_GET_TRAN_SETTINGS:
@ -801,7 +807,10 @@ static void hpt_pci_intr(void *arg)
static void hpt_poll(struct cam_sim *sim)
{
hpt_pci_intr(cam_sim_softc(sim));
PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
hpt_assert_vbus_locked(vbus_ext);
ldm_intr((PVBUS)vbus_ext->vbus);
}
static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
@ -852,7 +861,7 @@ static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
{
PVBUS vbus;
PVBUS_EXT vbus_ext;
ldm_for_each_vbus(vbus, vbus_ext) {
__hpt_do_ioctl(vbus_ext, ioctl_args);
if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
@ -999,7 +1008,10 @@ static void hpt_final_init(void *dummy)
/* initializing hardware */
ldm_for_each_vbus(vbus, vbus_ext) {
/* make timer available here */
callout_handle_init(&vbus_ext->timer);
#if (__FreeBSD_version >= 500000)
mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
#endif
callout_init_mtx(&vbus_ext->timer, &vbus_ext->lock, 0);
if (hpt_init_vbus(vbus_ext)) {
os_printk("fail to initialize hardware");
break; /* FIXME */
@ -1011,9 +1023,6 @@ static void hpt_final_init(void *dummy)
struct cam_devq *devq;
struct ccb_setasync ccb;
#if (__FreeBSD_version >= 500000)
mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
#endif
if (bus_dma_tag_create(NULL,/* parent */
4, /* alignment */
BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
@ -1047,7 +1056,7 @@ static void hpt_final_init(void *dummy)
os_printk("Can't create dma map(%d)", i);
return ;
}
callout_handle_init(&ext->timeout_ch);
callout_init_mtx(&ext->timeout, &vbus_ext->lock, 0);
}
if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
@ -1057,7 +1066,7 @@ static void hpt_final_init(void *dummy)
#if __FreeBSD_version > 700025
vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
vbus_ext, unit_number, &Giant, os_max_queue_comm, /*tagged*/8, devq);
vbus_ext, unit_number, &vbus_ext->lock, os_max_queue_comm, /*tagged*/8, devq);
#else
vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
vbus_ext, unit_number, os_max_queue_comm, /*tagged*/8, devq);
@ -1069,11 +1078,13 @@ static void hpt_final_init(void *dummy)
return ;
}
hpt_lock_vbus(vbus_ext);
#if __FreeBSD_version > 700044
if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
#else
if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
#endif
hpt_unlock_vbus(vbus_ext);
os_printk("xpt_bus_register failed");
cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
vbus_ext->sim = NULL;
@ -1084,6 +1095,7 @@ static void hpt_final_init(void *dummy)
cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD) != CAM_REQ_CMP)
{
hpt_unlock_vbus(vbus_ext);
os_printk("xpt_create_path failed");
xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
@ -1097,6 +1109,7 @@ static void hpt_final_init(void *dummy)
ccb.callback = hpt_async;
ccb.callback_arg = vbus_ext;
xpt_action((union ccb *)&ccb);
hpt_unlock_vbus(vbus_ext);
for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
int rid = 0;
@ -1107,7 +1120,7 @@ static void hpt_final_init(void *dummy)
return ;
}
if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM,
if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM | INTR_MPSAFE,
#if __FreeBSD_version > 700025
NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle))
#else
@ -1290,16 +1303,8 @@ static int hpt_ioctl(ioctl_dev_t dev, u_long cmd, caddr_t data, int fflag, ioctl
goto invalid;
}
#if (__FreeBSD_version >= 500000)
mtx_lock(&Giant);
#endif
hpt_do_ioctl(&ioctl_args);
#if (__FreeBSD_version >= 500000)
mtx_unlock(&Giant);
#endif
if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
if (piop->nOutBufferSize) {
if (copyout(ioctl_args.lpOutBuffer,
@ -1340,8 +1345,6 @@ static int hpt_rescan_bus(void)
PVBUS vbus;
PVBUS_EXT vbus_ext;
mtx_lock(&Giant);
ldm_for_each_vbus(vbus, vbus_ext) {
if ((ccb = xpt_alloc_ccb()) == NULL)
{

View file

@ -174,7 +174,7 @@ typedef struct _os_cmdext {
struct _os_cmdext *next;
union ccb *ccb;
bus_dmamap_t dma_map;
struct callout_handle timeout_ch;
struct callout timeout;
SG psg[os_max_sg_descriptors];
}
OS_CMDEXT, *POS_CMDEXT;
@ -200,7 +200,7 @@ typedef struct _vbus_ext {
OSM_TASK *tasks;
struct task worker;
struct callout_handle timer;
struct callout timer;
eventhandler_tag shutdown_eh;
@ -212,6 +212,7 @@ VBUS_EXT, *PVBUS_EXT;
#if __FreeBSD_version >= 500000
#define hpt_lock_vbus(vbus_ext) mtx_lock(&(vbus_ext)->lock)
#define hpt_unlock_vbus(vbus_ext) mtx_unlock(&(vbus_ext)->lock)
#define hpt_assert_vbus_locked(vbus_ext) mtx_assert(&(vbus_ext)->lock, MA_OWNED)
#else
static __inline void hpt_lock_vbus(PVBUS_EXT vbus_ext)
{