diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_mad.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_mad.c | 110 |
1 files changed, 72 insertions, 38 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c index b34b91d3723a..1ff46ae7dd99 100644 --- a/drivers/infiniband/hw/ipath/ipath_mad.c +++ b/drivers/infiniband/hw/ipath/ipath_mad.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved. + * Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved. * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -146,6 +146,15 @@ static int recv_subn_get_guidinfo(struct ib_smp *smp, return reply(smp); } +static void set_link_width_enabled(struct ipath_devdata *dd, u32 w) +{ + (void) dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_LWID_ENB, w); +} + +static void set_link_speed_enabled(struct ipath_devdata *dd, u32 s) +{ + (void) dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_SPD_ENB, s); +} static int get_overrunthreshold(struct ipath_devdata *dd) { @@ -226,6 +235,7 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev, u8 port) { struct ipath_ibdev *dev; + struct ipath_devdata *dd; struct ib_port_info *pip = (struct ib_port_info *)smp->data; u16 lid; u8 ibcstat; @@ -239,6 +249,7 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, } dev = to_idev(ibdev); + dd = dev->dd; /* Clear all fields. Only set the non-zero fields. */ memset(smp->data, 0, sizeof(smp->data)); @@ -248,25 +259,28 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, dev->mkeyprot == 0) pip->mkey = dev->mkey; pip->gid_prefix = dev->gid_prefix; - lid = dev->dd->ipath_lid; + lid = dd->ipath_lid; pip->lid = lid ? cpu_to_be16(lid) : IB_LID_PERMISSIVE; pip->sm_lid = cpu_to_be16(dev->sm_lid); pip->cap_mask = cpu_to_be32(dev->port_cap_flags); /* pip->diag_code; */ pip->mkey_lease_period = cpu_to_be16(dev->mkey_lease_period); pip->local_port_num = port; - pip->link_width_enabled = dev->link_width_enabled; - pip->link_width_supported = 3; /* 1x or 4x */ - pip->link_width_active = 2; /* 4x */ - pip->linkspeed_portstate = 0x10; /* 2.5Gbps */ - ibcstat = dev->dd->ipath_lastibcstat; - pip->linkspeed_portstate |= ((ibcstat >> 4) & 0x3) + 1; + pip->link_width_enabled = dd->ipath_link_width_enabled; + pip->link_width_supported = dd->ipath_link_width_supported; + pip->link_width_active = dd->ipath_link_width_active; + pip->linkspeed_portstate = dd->ipath_link_speed_supported << 4; + ibcstat = dd->ipath_lastibcstat; + /* map LinkState to IB portinfo values. */ + pip->linkspeed_portstate |= ipath_ib_linkstate(dd, ibcstat) + 1; + pip->portphysstate_linkdown = - (ipath_cvt_physportstate[ibcstat & 0xf] << 4) | - (get_linkdowndefaultstate(dev->dd) ? 1 : 2); - pip->mkeyprot_resv_lmc = (dev->mkeyprot << 6) | dev->dd->ipath_lmc; - pip->linkspeedactive_enabled = 0x11; /* 2.5Gbps, 2.5Gbps */ - switch (dev->dd->ipath_ibmtu) { + (ipath_cvt_physportstate[ibcstat & dd->ibcs_lts_mask] << 4) | + (get_linkdowndefaultstate(dd) ? 1 : 2); + pip->mkeyprot_resv_lmc = (dev->mkeyprot << 6) | dd->ipath_lmc; + pip->linkspeedactive_enabled = (dd->ipath_link_speed_active << 4) | + dd->ipath_link_speed_enabled; + switch (dd->ipath_ibmtu) { case 4096: mtu = IB_MTU_4096; break; @@ -292,19 +306,15 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, /* pip->vl_arb_high_cap; // only one VL */ /* pip->vl_arb_low_cap; // only one VL */ /* InitTypeReply = 0 */ - /* - * Note: the chips support a maximum MTU of 4096, but the driver - * hasn't implemented this feature yet, so set the maximum value - * to 2048. - */ - pip->inittypereply_mtucap = IB_MTU_2048; - // HCAs ignore VLStallCount and HOQLife + /* our mtu cap depends on whether 4K MTU enabled or not */ + pip->inittypereply_mtucap = ipath_mtu4096 ? IB_MTU_4096 : IB_MTU_2048; + /* HCAs ignore VLStallCount and HOQLife */ /* pip->vlstallcnt_hoqlife; */ pip->operationalvl_pei_peo_fpi_fpo = 0x10; /* OVLs = 1 */ pip->mkey_violations = cpu_to_be16(dev->mkey_violations); /* P_KeyViolations are counted by hardware. */ pip->pkey_violations = - cpu_to_be16((ipath_get_cr_errpkey(dev->dd) - + cpu_to_be16((ipath_get_cr_errpkey(dd) - dev->z_pkey_violations) & 0xFFFF); pip->qkey_violations = cpu_to_be16(dev->qkey_violations); /* Only the hardware GUID is supported for now */ @@ -313,10 +323,17 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, /* 32.768 usec. response time (guessing) */ pip->resv_resptimevalue = 3; pip->localphyerrors_overrunerrors = - (get_phyerrthreshold(dev->dd) << 4) | - get_overrunthreshold(dev->dd); + (get_phyerrthreshold(dd) << 4) | + get_overrunthreshold(dd); /* pip->max_credit_hint; */ - /* pip->link_roundtrip_latency[3]; */ + if (dev->port_cap_flags & IB_PORT_LINK_LATENCY_SUP) { + u32 v; + + v = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_LINKLATENCY); + pip->link_roundtrip_latency[0] = v >> 16; + pip->link_roundtrip_latency[1] = v >> 8; + pip->link_roundtrip_latency[2] = v; + } ret = reply(smp); @@ -444,19 +461,25 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, ib_dispatch_event(&event); } - /* Only 4x supported but allow 1x or 4x to be set (see 14.2.6.6). */ + /* Allow 1x or 4x to be set (see 14.2.6.6). */ lwe = pip->link_width_enabled; - if ((lwe >= 4 && lwe <= 8) || (lwe >= 0xC && lwe <= 0xFE)) - goto err; - if (lwe == 0xFF) - dev->link_width_enabled = 3; /* 1x or 4x */ - else if (lwe) - dev->link_width_enabled = lwe; + if (lwe) { + if (lwe == 0xFF) + lwe = dd->ipath_link_width_supported; + else if (lwe >= 16 || (lwe & ~dd->ipath_link_width_supported)) + goto err; + set_link_width_enabled(dd, lwe); + } - /* Only 2.5 Gbs supported. */ + /* Allow 2.5 or 5.0 Gbs. */ lse = pip->linkspeedactive_enabled & 0xF; - if (lse >= 2 && lse <= 0xE) - goto err; + if (lse) { + if (lse == 15) + lse = dd->ipath_link_speed_supported; + else if (lse >= 8 || (lse & ~dd->ipath_link_speed_supported)) + goto err; + set_link_speed_enabled(dd, lse); + } /* Set link down default state. */ switch (pip->portphysstate_linkdown & 0xF) { @@ -491,6 +514,8 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, mtu = 2048; break; case IB_MTU_4096: + if (!ipath_mtu4096) + goto err; mtu = 4096; break; default: @@ -565,6 +590,10 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, else goto err; ipath_set_linkstate(dd, lstate); + if (lstate == IPATH_IB_LINKDOWN_DISABLE) { + ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; + goto done; + } ipath_wait_linkstate(dd, IPATH_LINKINIT | IPATH_LINKARMED | IPATH_LINKACTIVE, 1000); break; @@ -948,10 +977,14 @@ static int recv_pma_get_portsamplescontrol(struct ib_perf *pmp, * nsec. 0 == 4 nsec., 1 == 8 nsec., ..., 255 == 1020 nsec. Sample * intervals are counted in ticks. Since we use Linux timers, that * count in jiffies, we can't sample for less than 1000 ticks if HZ - * == 1000 (4000 ticks if HZ is 250). + * == 1000 (4000 ticks if HZ is 250). link_speed_active returns 2 for + * DDR, 1 for SDR, set the tick to 1 for DDR, 0 for SDR on chips that + * have hardware support for delaying packets. */ - /* XXX This is WRONG. */ - p->tick = 250; /* 1 usec. */ + if (crp->cr_psstat) + p->tick = dev->dd->ipath_link_speed_active - 1; + else + p->tick = 250; /* 1 usec. */ p->counter_width = 4; /* 32 bit counters */ p->counter_mask0_9 = COUNTER_MASK0_9; spin_lock_irqsave(&dev->pending_lock, flags); @@ -1364,7 +1397,8 @@ static int process_subn(struct ib_device *ibdev, int mad_flags, } /* Is the mkey in the process of expiring? */ - if (dev->mkey_lease_timeout && jiffies >= dev->mkey_lease_timeout) { + if (dev->mkey_lease_timeout && + time_after_eq(jiffies, dev->mkey_lease_timeout)) { /* Clear timeout and mkey protection field. */ dev->mkey_lease_timeout = 0; dev->mkeyprot = 0; |