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IB/ipath: Fix IB_EVENT_PORT_ERR event

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The link state event calls were being generated when the SM told the SMA
to change link states. This works for IB_EVENT_PORT_ACTIVE but not if
the link goes down and stays down. The fix is to generate event calls
from the interrupt handler when the HW link state changes.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell
2007-09-19 16:47:31 -07:00
committad av Roland Dreier
förälder 6a733cdc71
incheckning 49739b3e24
5 ändrade filer med 31 tillägg och 12 borttagningar
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17
drivers/infiniband/hw/ipath/ipath_intr.c
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@@ -275,6 +275,16 @@ static char *ib_linkstate(u32 linkstate)
return ret;
}
void signal_ib_event(struct ipath_devdata *dd, enum ib_event_type ev)
{
struct ib_event event;
event.device = &dd->verbs_dev->ibdev;
event.element.port_num = 1;
event.event = ev;
ib_dispatch_event(&event);
}
static void handle_e_ibstatuschanged(struct ipath_devdata *dd,
ipath_err_t errs, int noprint)
{
@@ -373,6 +383,8 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd,
dd->ipath_ibpollcnt = 0; /* some state other than 2 or 3 */
ipath_stats.sps_iblink++;
if (ltstate != INFINIPATH_IBCS_LT_STATE_LINKUP) {
if (dd->ipath_flags & IPATH_LINKACTIVE)
signal_ib_event(dd, IB_EVENT_PORT_ERR);
dd->ipath_flags |= IPATH_LINKDOWN;
dd->ipath_flags &= ~(IPATH_LINKUNK | IPATH_LINKINIT
| IPATH_LINKACTIVE |
@@ -405,7 +417,10 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd,
*dd->ipath_statusp |=
IPATH_STATUS_IB_READY | IPATH_STATUS_IB_CONF;
dd->ipath_f_setextled(dd, lstate, ltstate);
signal_ib_event(dd, IB_EVENT_PORT_ACTIVE);
} else if ((val & IPATH_IBSTATE_MASK) == IPATH_IBSTATE_INIT) {
if (dd->ipath_flags & IPATH_LINKACTIVE)
signal_ib_event(dd, IB_EVENT_PORT_ERR);
/*
* set INIT and DOWN. Down is checked by most of the other
* code, but INIT is useful to know in a few places.
@@ -418,6 +433,8 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd,
| IPATH_STATUS_IB_READY);
dd->ipath_f_setextled(dd, lstate, ltstate);
} else if ((val & IPATH_IBSTATE_MASK) == IPATH_IBSTATE_ARM) {
if (dd->ipath_flags & IPATH_LINKACTIVE)
signal_ib_event(dd, IB_EVENT_PORT_ERR);
dd->ipath_flags |= IPATH_LINKARMED;
dd->ipath_flags &=
~(IPATH_LINKUNK | IPATH_LINKDOWN | IPATH_LINKINIT |