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staging/rdma/hfi1: HFI reports wrong offline disabled reason when cable removed

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Removing QSFP cable should report 'No Local Media' instead of
'Transient' as reported by 'opaportinfo'.
Workaround is to change the state to
OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED in cable handler.

With cable still removed, 'opaportinfo bounce' should not cause a
state change to Polling, as reported by 'opaportinfo'.
Resolution is to prevent physical state change from Offline->Polling.

Use a macro to mask lower nibble of OPA_LINKDOWN_REASON* as needed
for offline_disabled_reason.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reported-by: Todd Rimmer <todd.rimmer@intel.com>
Signed-off-by: Bryan Morgan <bryan.c.morgan@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bryan Morgan 2016-02-03 14:30:49 -08:00 committed by Doug Ledford
parent 9cd70e1bbf
commit a9c05e350c
4 changed files with 34 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/staging/rdma/hfi1/chip.c
View File

@ -5857,6 +5857,16 @@ static void handle_qsfp_int(struct hfi1_devdata *dd, u32 src_ctx, u64 reg)
ASIC_QSFP2_INVERT :
ASIC_QSFP1_INVERT,
qsfp_int_mgmt);
if ((ppd->offline_disabled_reason >
HFI1_ODR_MASK(
OPA_LINKDOWN_REASONLOCAL_MEDIA_NOT_INSTALLED)) ||
(ppd->offline_disabled_reason ==
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE)))
ppd->offline_disabled_reason =
HFI1_ODR_MASK(
OPA_LINKDOWN_REASONLOCAL_MEDIA_NOT_INSTALLED);
if (ppd->host_link_state == HLS_DN_POLL) {
/*
* The link is still in POLL. This means
@ -9615,9 +9625,10 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
ret);
return -EINVAL;
}
if (ppd->offline_disabled_reason == OPA_LINKDOWN_REASON_NONE)
if (ppd->offline_disabled_reason ==
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE))
ppd->offline_disabled_reason =
OPA_LINKDOWN_REASON_TRANSIENT;
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_TRANSIENT);
}
if (do_wait) {
@ -9972,7 +9983,8 @@ int set_link_state(struct hfi1_pportdata *ppd, u32 state)
ret = -EINVAL;
}
}
ppd->offline_disabled_reason = OPA_LINKDOWN_REASON_NONE;
ppd->offline_disabled_reason =
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE);
/*
* If an error occurred above, go back to offline. The
* caller may reschedule another attempt.

2
drivers/staging/rdma/hfi1/hfi.h
View File

@ -99,6 +99,8 @@ extern unsigned long hfi1_cap_mask;
#define HFI1_CAP_IS_USET(cap) (!!HFI1_CAP_UGET(cap))
#define HFI1_MISC_GET() ((hfi1_cap_mask >> HFI1_CAP_MISC_SHIFT) & \
HFI1_CAP_MISC_MASK)
/* Offline Disabled Reason is 4-bits */
#define HFI1_ODR_MASK(rsn) ((rsn) & OPA_PI_MASK_OFFLINE_REASON)
/*
* Control context is always 0 and handles the error packets.

3
drivers/staging/rdma/hfi1/intr.c
View File

@ -152,7 +152,8 @@ void handle_linkup_change(struct hfi1_devdata *dd, u32 linkup)
/* physical link went up */
ppd->linkup = 1;
ppd->offline_disabled_reason = OPA_LINKDOWN_REASON_NONE;
ppd->offline_disabled_reason =
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE);
/* link widths are not available until the link is fully up */
get_linkup_link_widths(ppd);

24
drivers/staging/rdma/hfi1/mad.c
View File

@ -590,12 +590,11 @@ static int __subn_get_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data,
pi->port_states.ledenable_offlinereason |=
ppd->is_sm_config_started << 5;
pi->port_states.ledenable_offlinereason |=
ppd->offline_disabled_reason & OPA_PI_MASK_OFFLINE_REASON;
ppd->offline_disabled_reason;
#else
pi->port_states.offline_reason = ppd->neighbor_normal << 4;
pi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
pi->port_states.offline_reason |= ppd->offline_disabled_reason &
OPA_PI_MASK_OFFLINE_REASON;
pi->port_states.offline_reason |= ppd->offline_disabled_reason;
#endif /* PI_LED_ENABLE_SUP */
pi->port_states.portphysstate_portstate =
@ -929,6 +928,14 @@ static int port_states_transition_allowed(struct hfi1_pportdata *ppd,
physical_allowed == HFI_TRANSITION_IGNORED)
return HFI_TRANSITION_IGNORED;
/*
* A change request of Physical Port State from
* 'Offline' to 'Polling' should be ignored.
*/
if ((physical_old == OPA_PORTPHYSSTATE_OFFLINE) &&
(physical_new == IB_PORTPHYSSTATE_POLLING))
return HFI_TRANSITION_IGNORED;
/*
* Either physical_allowed or logical_allowed is
* HFI_TRANSITION_ALLOWED.
@ -993,11 +1000,11 @@ static int set_port_states(struct hfi1_pportdata *ppd, struct opa_smp *smp,
set_link_state(ppd, link_state);
if (link_state == HLS_DN_DISABLE &&
(ppd->offline_disabled_reason >
OPA_LINKDOWN_REASON_SMA_DISABLED ||
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_SMA_DISABLED) ||
ppd->offline_disabled_reason ==
OPA_LINKDOWN_REASON_NONE))
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE)))
ppd->offline_disabled_reason =
OPA_LINKDOWN_REASON_SMA_DISABLED;
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_SMA_DISABLED);
/*
* Don't send a reply if the response would be sent
* through the disabled port.
@ -1710,12 +1717,11 @@ static int __subn_get_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
psi->port_states.ledenable_offlinereason |=
ppd->is_sm_config_started << 5;
psi->port_states.ledenable_offlinereason |=
ppd->offline_disabled_reason & OPA_PI_MASK_OFFLINE_REASON;
ppd->offline_disabled_reason;
#else
psi->port_states.offline_reason = ppd->neighbor_normal << 4;
psi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
psi->port_states.offline_reason |= ppd->offline_disabled_reason &
OPA_PI_MASK_OFFLINE_REASON;
psi->port_states.offline_reason |= ppd->offline_disabled_reason;
#endif /* PI_LED_ENABLE_SUP */
psi->port_states.portphysstate_portstate =