From: Mike Marciniszyn Date: Tue, 11 Jan 2011 01:42:19 +0000 (-0800) Subject: IB/qib: Set port physical state even if other fields are invalid X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3c9e5f4d657170c2fbc3d382d2daae3820713a6c;p=linux-beck.git IB/qib: Set port physical state even if other fields are invalid The IBTA vol. 1 release 1.2.1 spec. says: C14-24.2.1: If PortInfo:Portstate=Down, then a SubnSet(PortInfo) shall make any changes it specifies to PortInfo:PortPhysicalState; any other result is vendor-dependent. The patch changes the error handling so that the reply says there are invalid fields but still attempts to set fields that are in range including PortInfo:PortPhysicalState. Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c index 94b0d1f3a8f0..5ad224e4a38b 100644 --- a/drivers/infiniband/hw/qib/qib_mad.c +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -668,8 +668,8 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, lid = be16_to_cpu(pip->lid); /* Must be a valid unicast LID address. */ if (lid == 0 || lid >= QIB_MULTICAST_LID_BASE) - goto err; - if (ppd->lid != lid || ppd->lmc != (pip->mkeyprot_resv_lmc & 7)) { + smp->status |= IB_SMP_INVALID_FIELD; + else if (ppd->lid != lid || ppd->lmc != (pip->mkeyprot_resv_lmc & 7)) { if (ppd->lid != lid) qib_set_uevent_bits(ppd, _QIB_EVENT_LID_CHANGE_BIT); if (ppd->lmc != (pip->mkeyprot_resv_lmc & 7)) @@ -683,8 +683,8 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, msl = pip->neighbormtu_mastersmsl & 0xF; /* Must be a valid unicast LID address. */ if (smlid == 0 || smlid >= QIB_MULTICAST_LID_BASE) - goto err; - if (smlid != ibp->sm_lid || msl != ibp->sm_sl) { + smp->status |= IB_SMP_INVALID_FIELD; + else if (smlid != ibp->sm_lid || msl != ibp->sm_sl) { spin_lock_irqsave(&ibp->lock, flags); if (ibp->sm_ah) { if (smlid != ibp->sm_lid) @@ -707,8 +707,9 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, if (lwe == 0xFF) lwe = ppd->link_width_supported; else if (lwe >= 16 || (lwe & ~ppd->link_width_supported)) - goto err; - set_link_width_enabled(ppd, lwe); + smp->status |= IB_SMP_INVALID_FIELD; + else if (lwe != ppd->link_width_enabled) + set_link_width_enabled(ppd, lwe); } lse = pip->linkspeedactive_enabled & 0xF; @@ -721,8 +722,9 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, if (lse == 15) lse = ppd->link_speed_supported; else if (lse >= 8 || (lse & ~ppd->link_speed_supported)) - goto err; - set_link_speed_enabled(ppd, lse); + smp->status |= IB_SMP_INVALID_FIELD; + else if (lse != ppd->link_speed_enabled) + set_link_speed_enabled(ppd, lse); } /* Set link down default state. */ @@ -738,7 +740,7 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, IB_LINKINITCMD_POLL); break; default: - goto err; + smp->status |= IB_SMP_INVALID_FIELD; } ibp->mkeyprot = pip->mkeyprot_resv_lmc >> 6; @@ -748,15 +750,17 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, mtu = ib_mtu_enum_to_int((pip->neighbormtu_mastersmsl >> 4) & 0xF); if (mtu == -1) - goto err; - qib_set_mtu(ppd, mtu); + smp->status |= IB_SMP_INVALID_FIELD; + else + qib_set_mtu(ppd, mtu); /* Set operational VLs */ vls = (pip->operationalvl_pei_peo_fpi_fpo >> 4) & 0xF; if (vls) { if (vls > ppd->vls_supported) - goto err; - (void) dd->f_set_ib_cfg(ppd, QIB_IB_CFG_OP_VLS, vls); + smp->status |= IB_SMP_INVALID_FIELD; + else + (void) dd->f_set_ib_cfg(ppd, QIB_IB_CFG_OP_VLS, vls); } if (pip->mkey_violations == 0) @@ -770,10 +774,10 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, ore = pip->localphyerrors_overrunerrors; if (set_phyerrthreshold(ppd, (ore >> 4) & 0xF)) - goto err; + smp->status |= IB_SMP_INVALID_FIELD; if (set_overrunthreshold(ppd, (ore & 0xF))) - goto err; + smp->status |= IB_SMP_INVALID_FIELD; ibp->subnet_timeout = pip->clientrereg_resv_subnetto & 0x1F; @@ -792,7 +796,7 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, state = pip->linkspeed_portstate & 0xF; lstate = (pip->portphysstate_linkdown >> 4) & 0xF; if (lstate && !(state == IB_PORT_DOWN || state == IB_PORT_NOP)) - goto err; + smp->status |= IB_SMP_INVALID_FIELD; /* * Only state changes of DOWN, ARM, and ACTIVE are valid @@ -812,8 +816,10 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, lstate = QIB_IB_LINKDOWN; else if (lstate == 3) lstate = QIB_IB_LINKDOWN_DISABLE; - else - goto err; + else { + smp->status |= IB_SMP_INVALID_FIELD; + break; + } spin_lock_irqsave(&ppd->lflags_lock, flags); ppd->lflags &= ~QIBL_LINKV; spin_unlock_irqrestore(&ppd->lflags_lock, flags); @@ -835,8 +841,7 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, qib_set_linkstate(ppd, QIB_IB_LINKACTIVE); break; default: - /* XXX We have already partially updated our state! */ - goto err; + smp->status |= IB_SMP_INVALID_FIELD; } ret = subn_get_portinfo(smp, ibdev, port);