From 51e658f5dd362cc8666f3f5ec1986660e3e51047 Mon Sep 17 00:00:00 2001 From: Dasaratharaman Chandramouli Date: Fri, 4 Aug 2017 13:54:35 -0700 Subject: [PATCH] IB/rdmavt, hfi1, qib: Enhance rdmavt and hfi1 to use 32 bit lids Increase lid used in hfi1 driver to 32 bits. qib continues to use 16 bit lids. Reviewed-by: Dennis Dalessandro Signed-off-by: Dasaratharaman Chandramouli Signed-off-by: Don Hiatt Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/chip.c | 12 +++-- drivers/infiniband/hw/hfi1/hfi.h | 2 +- drivers/infiniband/hw/hfi1/mad.c | 91 ++++++++++++++++++++++++++++++++----- drivers/infiniband/hw/hfi1/verbs.c | 23 +--------- drivers/infiniband/hw/hfi1/verbs.h | 2 - drivers/infiniband/hw/qib/qib_mad.c | 4 +- include/rdma/rdma_vt.h | 2 +- 7 files changed, 93 insertions(+), 43 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index ee1324c..cbda373 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -10067,10 +10067,16 @@ static void set_lidlmc(struct hfi1_pportdata *ppd) struct hfi1_devdata *dd = ppd->dd; u32 mask = ~((1U << ppd->lmc) - 1); u64 c1 = read_csr(ppd->dd, DCC_CFG_PORT_CONFIG1); + u32 lid; + /* + * Program 0 in CSR if port lid is extended. This prevents + * 9B packets being sent out for large lids. + */ + lid = (ppd->lid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) ? 0 : ppd->lid; c1 &= ~(DCC_CFG_PORT_CONFIG1_TARGET_DLID_SMASK | DCC_CFG_PORT_CONFIG1_DLID_MASK_SMASK); - c1 |= ((ppd->lid & DCC_CFG_PORT_CONFIG1_TARGET_DLID_MASK) + c1 |= ((lid & DCC_CFG_PORT_CONFIG1_TARGET_DLID_MASK) << DCC_CFG_PORT_CONFIG1_TARGET_DLID_SHIFT) | ((mask & DCC_CFG_PORT_CONFIG1_DLID_MASK_MASK) << DCC_CFG_PORT_CONFIG1_DLID_MASK_SHIFT); @@ -10081,7 +10087,7 @@ static void set_lidlmc(struct hfi1_pportdata *ppd) */ sreg = ((mask & SEND_CTXT_CHECK_SLID_MASK_MASK) << SEND_CTXT_CHECK_SLID_MASK_SHIFT) | - (((ppd->lid & mask) & SEND_CTXT_CHECK_SLID_VALUE_MASK) << + (((lid & mask) & SEND_CTXT_CHECK_SLID_VALUE_MASK) << SEND_CTXT_CHECK_SLID_VALUE_SHIFT); for (i = 0; i < dd->chip_send_contexts; i++) { @@ -10091,7 +10097,7 @@ static void set_lidlmc(struct hfi1_pportdata *ppd) } /* Now we have to do the same thing for the sdma engines */ - sdma_update_lmc(dd, mask, ppd->lid); + sdma_update_lmc(dd, mask, lid); } static const char *state_completed_string(u32 completed) diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h index b07f42c..52cae11 100644 --- a/drivers/infiniband/hw/hfi1/hfi.h +++ b/drivers/infiniband/hw/hfi1/hfi.h @@ -718,7 +718,7 @@ struct hfi1_pportdata { u32 ibmaxlen; u32 current_egress_rate; /* units [10^6 bits/sec] */ /* LID programmed for this instance */ - u16 lid; + u32 lid; /* list of pkeys programmed; 0 if not set */ u16 pkeys[MAX_PKEY_VALUES]; u16 link_width_supported; diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c index 1509bc6..cdcb4d0 100644 --- a/drivers/infiniband/hw/hfi1/mad.c +++ b/drivers/infiniband/hw/hfi1/mad.c @@ -234,6 +234,61 @@ static void subn_handle_opa_trap_repress(struct hfi1_ibport *ibp, spin_unlock_irqrestore(&ibp->rvp.lock, flags); } +static void hfi1_update_sm_ah_attr(struct hfi1_ibport *ibp, + struct rdma_ah_attr *attr, u32 dlid) +{ + rdma_ah_set_dlid(attr, dlid); + rdma_ah_set_port_num(attr, ppd_from_ibp(ibp)->port); + if (dlid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) { + struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); + + rdma_ah_set_ah_flags(attr, IB_AH_GRH); + grh->sgid_index = 0; + grh->hop_limit = 1; + grh->dgid.global.subnet_prefix = + ibp->rvp.gid_prefix; + grh->dgid.global.interface_id = OPA_MAKE_ID(dlid); + } +} + +static int hfi1_modify_qp0_ah(struct hfi1_ibport *ibp, + struct rvt_ah *ah, u32 dlid) +{ + struct rdma_ah_attr attr; + struct rvt_qp *qp0; + int ret = -EINVAL; + + memset(&attr, 0, sizeof(attr)); + attr.type = ah->ibah.type; + hfi1_update_sm_ah_attr(ibp, &attr, dlid); + rcu_read_lock(); + qp0 = rcu_dereference(ibp->rvp.qp[0]); + if (qp0) + ret = rdma_modify_ah(&ah->ibah, &attr); + rcu_read_unlock(); + return ret; +} + +static struct ib_ah *hfi1_create_qp0_ah(struct hfi1_ibport *ibp, u32 dlid) +{ + struct rdma_ah_attr attr; + struct ib_ah *ah = ERR_PTR(-EINVAL); + struct rvt_qp *qp0; + struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); + struct hfi1_devdata *dd = dd_from_ppd(ppd); + u8 port_num = ppd->port; + + memset(&attr, 0, sizeof(attr)); + attr.type = rdma_ah_find_type(&dd->verbs_dev.rdi.ibdev, port_num); + hfi1_update_sm_ah_attr(ibp, &attr, dlid); + rcu_read_lock(); + qp0 = rcu_dereference(ibp->rvp.qp[0]); + if (qp0) + ah = rdma_create_ah(qp0->ibqp.pd, &attr); + rcu_read_unlock(); + return ah; +} + static void send_trap(struct hfi1_ibport *ibp, struct trap_node *trap) { struct ib_mad_send_buf *send_buf; @@ -1283,8 +1338,8 @@ static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, struct hfi1_ibport *ibp; u8 clientrereg; unsigned long flags; - u32 smlid, opa_lid; /* tmp vars to hold LID values */ - u16 lid; + u32 smlid; + u32 lid; u8 ls_old, ls_new, ps_new; u8 vls; u8 msl; @@ -1301,22 +1356,20 @@ static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, return reply((struct ib_mad_hdr *)smp); } - opa_lid = be32_to_cpu(pi->lid); - if (opa_lid & 0xFFFF0000) { - pr_warn("OPA_PortInfo lid out of range: %X\n", opa_lid); + lid = be32_to_cpu(pi->lid); + if (lid & 0xFF000000) { + pr_warn("OPA_PortInfo lid out of range: %X\n", lid); smp->status |= IB_SMP_INVALID_FIELD; goto get_only; } - lid = (u16)(opa_lid & 0x0000FFFF); smlid = be32_to_cpu(pi->sm_lid); - if (smlid & 0xFFFF0000) { + if (smlid & 0xFF000000) { pr_warn("OPA_PortInfo SM lid out of range: %X\n", smlid); smp->status |= IB_SMP_INVALID_FIELD; goto get_only; } - smlid &= 0x0000FFFF; clientrereg = (pi->clientrereg_subnettimeout & OPA_PI_MASK_CLIENT_REREGISTER); @@ -1331,12 +1384,16 @@ static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, ls_old = driver_lstate(ppd); ibp->rvp.mkey = pi->mkey; - ibp->rvp.gid_prefix = pi->subnet_prefix; + if (ibp->rvp.gid_prefix != pi->subnet_prefix) { + ibp->rvp.gid_prefix = pi->subnet_prefix; + event.event = IB_EVENT_GID_CHANGE; + ib_dispatch_event(&event); + } ibp->rvp.mkey_lease_period = be16_to_cpu(pi->mkey_lease_period); /* Must be a valid unicast LID address. */ if ((lid == 0 && ls_old > IB_PORT_INIT) || - lid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) { + (hfi1_is_16B_mcast(lid))) { smp->status |= IB_SMP_INVALID_FIELD; pr_warn("SubnSet(OPA_PortInfo) lid invalid 0x%x\n", lid); @@ -1349,6 +1406,16 @@ static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, hfi1_set_lid(ppd, lid, pi->mkeyprotect_lmc & OPA_PI_MASK_LMC); event.event = IB_EVENT_LID_CHANGE; ib_dispatch_event(&event); + + if (HFI1_PORT_GUID_INDEX + 1 < HFI1_GUIDS_PER_PORT) { + /* Manufacture GID from LID to support extended + * addresses + */ + ppd->guids[HFI1_PORT_GUID_INDEX + 1] = + be64_to_cpu(OPA_MAKE_ID(lid)); + event.event = IB_EVENT_GID_CHANGE; + ib_dispatch_event(&event); + } } msl = pi->smsl & OPA_PI_MASK_SMSL; @@ -1359,7 +1426,7 @@ static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, /* Must be a valid unicast LID address. */ if ((smlid == 0 && ls_old > IB_PORT_INIT) || - smlid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) { + (hfi1_is_16B_mcast(smlid))) { smp->status |= IB_SMP_INVALID_FIELD; pr_warn("SubnSet(OPA_PortInfo) smlid invalid 0x%x\n", smlid); } else if (smlid != ibp->rvp.sm_lid || msl != ibp->rvp.sm_sl) { @@ -1367,7 +1434,7 @@ static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, spin_lock_irqsave(&ibp->rvp.lock, flags); if (ibp->rvp.sm_ah) { if (smlid != ibp->rvp.sm_lid) - rdma_ah_set_dlid(&ibp->rvp.sm_ah->attr, smlid); + hfi1_modify_qp0_ah(ibp, ibp->rvp.sm_ah, smlid); if (msl != ibp->rvp.sm_sl) rdma_ah_set_sl(&ibp->rvp.sm_ah->attr, msl); } diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index 18b2727..83565e5 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -1394,7 +1394,7 @@ static int query_port(struct rvt_dev_info *rdi, u8 port_num, struct hfi1_ibdev *verbs_dev = dev_from_rdi(rdi); struct hfi1_devdata *dd = dd_from_dev(verbs_dev); struct hfi1_pportdata *ppd = &dd->pport[port_num - 1]; - u16 lid = ppd->lid; + u32 lid = ppd->lid; /* props being zeroed by the caller, avoid zeroing it here */ props->lid = lid ? lid : 0; @@ -1555,27 +1555,6 @@ static void hfi1_notify_new_ah(struct ib_device *ibdev, ah->log_pmtu = ilog2(dd->vld[ah->vl].mtu); } -struct ib_ah *hfi1_create_qp0_ah(struct hfi1_ibport *ibp, u16 dlid) -{ - struct rdma_ah_attr attr; - struct ib_ah *ah = ERR_PTR(-EINVAL); - struct rvt_qp *qp0; - struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); - struct hfi1_devdata *dd = dd_from_ppd(ppd); - u8 port_num = ppd->port; - - memset(&attr, 0, sizeof(attr)); - attr.type = rdma_ah_find_type(&dd->verbs_dev.rdi.ibdev, port_num); - rdma_ah_set_dlid(&attr, dlid); - rdma_ah_set_port_num(&attr, ppd_from_ibp(ibp)->port); - rcu_read_lock(); - qp0 = rcu_dereference(ibp->rvp.qp[0]); - if (qp0) - ah = rdma_create_ah(qp0->ibqp.pd, &attr); - rcu_read_unlock(); - return ah; -} - /** * hfi1_get_npkeys - return the size of the PKEY table for context 0 * @dd: the hfi1_ib device diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h index 4928ee4..ab1618e 100644 --- a/drivers/infiniband/hw/hfi1/verbs.h +++ b/drivers/infiniband/hw/hfi1/verbs.h @@ -334,8 +334,6 @@ void hfi1_rc_hdrerr( u8 ah_to_sc(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr); -struct ib_ah *hfi1_create_qp0_ah(struct hfi1_ibport *ibp, u16 dlid); - void hfi1_rc_send_complete(struct rvt_qp *qp, struct hfi1_opa_header *opah); void hfi1_ud_rcv(struct hfi1_packet *packet); diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c index 6b9b43b..549c719 100644 --- a/drivers/infiniband/hw/qib/qib_mad.c +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -105,7 +105,7 @@ static void qib_send_trap(struct qib_ibport *ibp, void *data, unsigned len) if (ibp->rvp.sm_lid != be16_to_cpu(IB_LID_PERMISSIVE)) { struct ib_ah *ah; - ah = qib_create_qp0_ah(ibp, ibp->rvp.sm_lid); + ah = qib_create_qp0_ah(ibp, (u16)ibp->rvp.sm_lid); if (IS_ERR(ah)) ret = PTR_ERR(ah); else { @@ -496,7 +496,7 @@ static int subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev, pip->mkey = ibp->rvp.mkey; pip->gid_prefix = ibp->rvp.gid_prefix; pip->lid = cpu_to_be16(ppd->lid); - pip->sm_lid = cpu_to_be16(ibp->rvp.sm_lid); + pip->sm_lid = cpu_to_be16((u16)ibp->rvp.sm_lid); pip->cap_mask = cpu_to_be32(ibp->rvp.port_cap_flags); /* pip->diag_code; */ pip->mkey_lease_period = cpu_to_be16(ibp->rvp.mkey_lease_period); diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h index fdfac0f..1d94f3c 100644 --- a/include/rdma/rdma_vt.h +++ b/include/rdma/rdma_vt.h @@ -91,7 +91,7 @@ struct rvt_ibport { __be16 pma_counter_select[5]; u16 pma_tag; u16 mkey_lease_period; - u16 sm_lid; + u32 sm_lid; u8 sm_sl; u8 mkeyprot; u8 subnet_timeout; -- 2.7.4