/* * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include "ipath_kernel.h" #include "ipath_verbs.h" #include "ips_common.h" #define IB_SMP_UNSUP_VERSION __constant_htons(0x0004) #define IB_SMP_UNSUP_METHOD __constant_htons(0x0008) #define IB_SMP_UNSUP_METH_ATTR __constant_htons(0x000C) #define IB_SMP_INVALID_FIELD __constant_htons(0x001C) static int reply(struct ib_smp *smp) { /* * The verbs framework will handle the directed/LID route * packet changes. */ smp->method = IB_MGMT_METHOD_GET_RESP; if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) smp->status |= IB_SMP_DIRECTION; return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; } static int recv_subn_get_nodedescription(struct ib_smp *smp, struct ib_device *ibdev) { if (smp->attr_mod) smp->status |= IB_SMP_INVALID_FIELD; strncpy(smp->data, ibdev->node_desc, sizeof(smp->data)); return reply(smp); } struct nodeinfo { u8 base_version; u8 class_version; u8 node_type; u8 num_ports; __be64 sys_guid; __be64 node_guid; __be64 port_guid; __be16 partition_cap; __be16 device_id; __be32 revision; u8 local_port_num; u8 vendor_id[3]; } __attribute__ ((packed)); static int recv_subn_get_nodeinfo(struct ib_smp *smp, struct ib_device *ibdev, u8 port) { struct nodeinfo *nip = (struct nodeinfo *)&smp->data; struct ipath_devdata *dd = to_idev(ibdev)->dd; u32 vendor, boardid, majrev, minrev; if (smp->attr_mod) smp->status |= IB_SMP_INVALID_FIELD; nip->base_version = 1; nip->class_version = 1; nip->node_type = 1; /* channel adapter */ /* * XXX The num_ports value will need a layer function to get * the value if we ever have more than one IB port on a chip. * We will also need to get the GUID for the port. */ nip->num_ports = ibdev->phys_port_cnt; /* This is already in network order */ nip->sys_guid = to_idev(ibdev)->sys_image_guid; nip->node_guid = ipath_layer_get_guid(dd); nip->port_guid = nip->sys_guid; nip->partition_cap = cpu_to_be16(ipath_layer_get_npkeys(dd)); nip->device_id = cpu_to_be16(ipath_layer_get_deviceid(dd)); ipath_layer_query_device(dd, &vendor, &boardid, &majrev, &minrev); nip->revision = cpu_to_be32((majrev << 16) | minrev); nip->local_port_num = port; nip->vendor_id[0] = 0; nip->vendor_id[1] = vendor >> 8; nip->vendor_id[2] = vendor; return reply(smp); } static int recv_subn_get_guidinfo(struct ib_smp *smp, struct ib_device *ibdev) { u32 startgx = 8 * be32_to_cpu(smp->attr_mod); __be64 *p = (__be64 *) smp->data; /* 32 blocks of 8 64-bit GUIDs per block */ memset(smp->data, 0, sizeof(smp->data)); /* * We only support one GUID for now. If this changes, the * portinfo.guid_cap field needs to be updated too. */ if (startgx == 0) /* The first is a copy of the read-only HW GUID. */ *p = ipath_layer_get_guid(to_idev(ibdev)->dd); else smp->status |= IB_SMP_INVALID_FIELD; return reply(smp); } static int recv_subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev, u8 port) { struct ipath_ibdev *dev; struct ib_port_info *pip = (struct ib_port_info *)smp->data; u16 lid; u8 ibcstat; u8 mtu; int ret; if (be32_to_cpu(smp->attr_mod) > ibdev->phys_port_cnt) { smp->status |= IB_SMP_INVALID_FIELD; ret = reply(smp); goto bail; } dev = to_idev(ibdev); /* Clear all fields. Only set the non-zero fields. */ memset(smp->data, 0, sizeof(smp->data)); /* Only return the mkey if the protection field allows it. */ if (smp->method == IB_MGMT_METHOD_SET || dev->mkey == smp->mkey || (dev->mkeyprot_resv_lmc >> 6) == 0) pip->mkey = dev->mkey; pip->gid_prefix = dev->gid_prefix; lid = ipath_layer_get_lid(dev->dd); 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 = ipath_layer_get_lastibcstat(dev->dd); pip->linkspeed_portstate |= ((ibcstat >> 4) & 0x3) + 1; pip->portphysstate_linkdown = (ipath_cvt_physportstate[ibcstat & 0xf] << 4) | (ipath_layer_get_linkdowndefaultstate(dev->dd) ? 1 : 2); pip->mkeyprot_resv_lmc = dev->mkeyprot_resv_lmc; pip->linkspeedactive_enabled = 0x11; /* 2.5Gbps, 2.5Gbps */ switch (ipath_layer_get_ibmtu(dev->dd)) { case 4096: mtu = IB_MTU_4096; break; case 2048: mtu = IB_MTU_2048; break; case 1024: mtu = IB_MTU_1024; break; case 512: mtu = IB_MTU_512; break; case 256: mtu = IB_MTU_256; break; default: /* oops, something is wrong */ mtu = IB_MTU_2048; break; } pip->neighbormtu_mastersmsl = (mtu << 4) | dev->sm_sl; pip->vlcap_inittype = 0x10; /* VLCap = VL0, InitType = 0 */ pip->vl_high_limit = dev->vl_high_limit; /* pip->vl_arb_high_cap; // only one VL */ /* pip->vl_arb_low_cap; // only one VL */ /* InitTypeReply = 0 */ pip->inittypereply_mtucap = IB_MTU_4096; // 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_layer_get_cr_errpkey(dev->dd) - dev->n_pkey_violations) & 0xFFFF); pip->qkey_violations = cpu_to_be16(dev->qkey_violations); /* Only the hardware GUID is supported for now */ pip->guid_cap = 1; pip->clientrereg_resv_subnetto = dev->subnet_timeout; /* 32.768 usec. response time (guessing) */ pip->resv_resptimevalue = 3; pip->localphyerrors_overrunerrors = (ipath_layer_get_phyerrthreshold(dev->dd) << 4) | ipath_layer_get_overrunthreshold(dev->dd); /* pip->max_credit_hint; */ /* pip->link_roundtrip_latency[3]; */ ret = reply(smp); bail: return ret; } static int recv_subn_get_pkeytable(struct ib_smp *smp, struct ib_device *ibdev) { u32 startpx = 32 * (be32_to_cpu(smp->attr_mod) & 0xffff); u16 *p = (u16 *) smp->data; __be16 *q = (__be16 *) smp->data; /* 64 blocks of 32 16-bit P_Key entries */ memset(smp->data, 0, sizeof(smp->data)); if (startpx == 0) { struct ipath_ibdev *dev = to_idev(ibdev); unsigned i, n = ipath_layer_get_npkeys(dev->dd); ipath_layer_get_pkeys(dev->dd, p); for (i = 0; i < n; i++) q[i] = cpu_to_be16(p[i]); } else smp->status |= IB_SMP_INVALID_FIELD; return reply(smp); } static int recv_subn_set_guidinfo(struct ib_smp *smp, struct ib_device *ibdev) { /* The only GUID we support is the first read-only entry. */ return recv_subn_get_guidinfo(smp, ibdev); } /** * recv_subn_set_portinfo - set port information * @smp: the incoming SM packet * @ibdev: the infiniband device * @port: the port on the device * * Set Portinfo (see ch. 14.2.5.6). */ static int recv_subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, u8 port) { struct ib_port_info *pip = (struct ib_port_info *)smp->data; struct ib_event event; struct ipath_ibdev *dev; u32 flags; char clientrereg = 0; u16 lid, smlid; u8 lwe; u8 lse; u8 state; u16 lstate; u32 mtu; int ret; if (be32_to_cpu(smp->attr_mod) > ibdev->phys_port_cnt) goto err; dev = to_idev(ibdev); event.device = ibdev; event.element.port_num = port; dev->mkey = pip->mkey; dev->gid_prefix = pip->gid_prefix; dev->mkey_lease_period = be16_to_cpu(pip->mkey_lease_period); lid = be16_to_cpu(pip->lid); if (lid != ipath_layer_get_lid(dev->dd)) { /* Must be a valid unicast LID address. */ if (lid == 0 || lid >= IPS_MULTICAST_LID_BASE) goto err; ipath_set_sps_lid(dev->dd, lid, pip->mkeyprot_resv_lmc & 7); event.event = IB_EVENT_LID_CHANGE; ib_dispatch_event(&event); } smlid = be16_to_cpu(pip->sm_lid); if (smlid != dev->sm_lid) { /* Must be a valid unicast LID address. */ if (smlid == 0 || smlid >= IPS_MULTICAST_LID_BASE) goto err; dev->sm_lid = smlid; event.event = IB_EVENT_SM_CHANGE; ib_dispatch_event(&event); } /* Only 4x supported but 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; /* Only 2.5 Gbs supported. */ lse = pip->linkspeedactive_enabled & 0xF; if (lse >= 2 && lse <= 0xE) goto err; /* Set link down default state. */ switch (pip->portphysstate_linkdown & 0xF) { case 0: /* NOP */ break; case 1: /* SLEEP */ if (ipath_layer_set_linkdowndefaultstate(dev->dd, 1)) goto err; break; case 2: /* POLL */ if (ipath_layer_set_linkdowndefaultstate(dev->dd, 0)) goto err; break; default: goto err; } dev->mkeyprot_resv_lmc = pip->mkeyprot_resv_lmc; dev->vl_high_limit = pip->vl_high_limit; switch ((pip->neighbormtu_mastersmsl >> 4) & 0xF) { case IB_MTU_256: mtu = 256; break; case IB_MTU_512: mtu = 512; break; case IB_MTU_1024: mtu = 1024; break; case IB_MTU_2048: mtu = 2048; break; case IB_MTU_4096: mtu = 4096; break; default: /* XXX We have already partially updated our state! */ goto err; } ipath_layer_set_mtu(dev->dd, mtu); dev->sm_sl = pip->neighbormtu_mastersmsl & 0xF; /* We only support VL0 */ if (((pip->operationalvl_pei_peo_fpi_fpo >> 4) & 0xF) > 1) goto err; if (pip->mkey_violations == 0) dev->mkey_violations = 0; /* * Hardware counter can't be reset so snapshot and subtract * later. */ if (pip->pkey_violations == 0) dev->n_pkey_violations = ipath_layer_get_cr_errpkey(dev->dd); if (pip->qkey_violations == 0) dev->qkey_violations = 0; if (ipath_layer_set_phyerrthreshold( dev->dd, (pip->localphyerrors_overrunerrors >> 4) & 0xF)) goto err; if (ipath_layer_set_overrunthreshold( dev->dd, (pip->localphyerrors_overrunerrors & 0xF))) goto err; dev->subnet_timeout = pip->clientrereg_resv_subnetto & 0x1F; if (pip->clientrereg_resv_subnetto & 0x80) { clientrereg = 1; event.event = IB_EVENT_CLIENT_REREGISTER; ib_dispatch_event(&event); } /* * Do the port state change now that the other link parameters * have been set. * Changing the port physical state only makes sense if the link * is down or is being set to down. */ state = pip->linkspeed_portstate & 0xF; flags = ipath_layer_get_flags(dev->dd); lstate = (pip->portphysstate_linkdown >> 4) & 0xF; if (lstate && !(state == IB_PORT_DOWN || state == IB_PORT_NOP)) goto err; /* * Only state changes of DOWN, ARM, and ACTIVE are valid * and must be in the correct state to take effect (see 7.2.6). */ switch (state) { case IB_PORT_NOP: if (lstate == 0) break; /* FALLTHROUGH */ case IB_PORT_DOWN: if (lstate == 0) if (ipath_layer_get_linkdowndefaultstate(dev->dd)) lstate = IPATH_IB_LINKDOWN_SLEEP; else lstate = IPATH_IB_LINKDOWN; else if (lstate == 1) lstate = IPATH_IB_LINKDOWN_SLEEP; else if (lstate == 2) lstate = IPATH_IB_LINKDOWN; else if (lstate == 3) lstate = IPATH_IB_LINKDOWN_DISABLE; else goto err; ipath_layer_set_linkstate(dev->dd, lstate); if (flags & IPATH_LINKACTIVE) { event.event = IB_EVENT_PORT_ERR; ib_dispatch_event(&event); } break; case IB_PORT_ARMED: if (!(flags & (IPATH_LINKINIT | IPATH_LINKACTIVE))) break; ipath_layer_set_linkstate(dev->dd, IPATH_IB_LINKARM); if (flags & IPATH_LINKACTIVE) { event.event = IB_EVENT_PORT_ERR; ib_dispatch_event(&event); } break; case IB_PORT_ACTIVE: if (!(flags & IPATH_LINKARMED)) break; ipath_layer_set_linkstate(dev->dd, IPATH_IB_LINKACTIVE); event.event = IB_EVENT_PORT_ACTIVE; ib_dispatch_event(&event); break; default: /* XXX We have already partially updated our state! */ goto err; } ret = recv_subn_get_portinfo(smp, ibdev, port); if (clientrereg) pip->clientrereg_resv_subnetto |= 0x80; goto done; err: smp->status |= IB_SMP_INVALID_FIELD; ret = recv_subn_get_portinfo(smp, ibdev, port); done: return ret; } static int recv_subn_set_pkeytable(struct ib_smp *smp, struct ib_device *ibdev) { u32 startpx = 32 * (be32_to_cpu(smp->attr_mod) & 0xffff); __be16 *p = (__be16 *) smp->data; u16 *q = (u16 *) smp->data; struct ipath_ibdev *dev = to_idev(ibdev); unsigned i, n = ipath_layer_get_npkeys(dev->dd); for (i = 0; i < n; i++) q[i] = be16_to_cpu(p[i]); if (startpx != 0 || ipath_layer_set_pkeys(dev->dd, q) != 0) smp->status |= IB_SMP_INVALID_FIELD; return recv_subn_get_pkeytable(smp, ibdev); } #define IB_PMA_CLASS_PORT_INFO __constant_htons(0x0001) #define IB_PMA_PORT_SAMPLES_CONTROL __constant_htons(0x0010) #define IB_PMA_PORT_SAMPLES_RESULT __constant_htons(0x0011) #define IB_PMA_PORT_COUNTERS __constant_htons(0x0012) #define IB_PMA_PORT_COUNTERS_EXT __constant_htons(0x001D) #define IB_PMA_PORT_SAMPLES_RESULT_EXT __constant_htons(0x001E) struct ib_perf { u8 base_version; u8 mgmt_class; u8 class_version; u8 method; __be16 status; __be16 unused; __be64 tid; __be16 attr_id; __be16 resv; __be32 attr_mod; u8 reserved[40]; u8 data[192]; } __attribute__ ((packed)); struct ib_pma_classportinfo { u8 base_version; u8 class_version; __be16 cap_mask; u8 reserved[3]; u8 resp_time_value; /* only lower 5 bits */ union ib_gid redirect_gid; __be32 redirect_tc_sl_fl; /* 8, 4, 20 bits respectively */ __be16 redirect_lid; __be16 redirect_pkey; __be32 redirect_qp; /* only lower 24 bits */ __be32 redirect_qkey; union ib_gid trap_gid; __be32 trap_tc_sl_fl; /* 8, 4, 20 bits respectively */ __be16 trap_lid; __be16 trap_pkey; __be32 trap_hl_qp; /* 8, 24 bits respectively */ __be32 trap_qkey; } __attribute__ ((packed)); struct ib_pma_portsamplescontrol { u8 opcode; u8 port_select; u8 tick; u8 counter_width; /* only lower 3 bits */ __be32 counter_mask0_9; /* 2, 10 * 3, bits */ __be16 counter_mask10_14; /* 1, 5 * 3, bits */ u8 sample_mechanisms; u8 sample_status; /* only lower 2 bits */ __be64 option_mask; __be64 vendor_mask; __be32 sample_start; __be32 sample_interval; __be16 tag; __be16 counter_select[15]; } __attribute__ ((packed)); struct ib_pma_portsamplesresult { __be16 tag; __be16 sample_status; /* only lower 2 bits */ __be32 counter[15]; } __attribute__ ((packed)); struct ib_pma_portsamplesresult_ext { __be16 tag; __be16 sample_status; /* only lower 2 bits */ __be32 extended_width; /* only upper 2 bits */ __be64 counter[15]; } __attribute__ ((packed)); struct ib_pma_portcounters { u8 reserved; u8 port_select; __be16 counter_select; __be16 symbol_error_counter; u8 link_error_recovery_counter; u8 link_downed_counter; __be16 port_rcv_errors; __be16 port_rcv_remphys_errors; __be16 port_rcv_switch_relay_errors; __be16 port_xmit_discards; u8 port_xmit_constraint_errors; u8 port_rcv_constraint_errors; u8 reserved1; u8 lli_ebor_errors; /* 4, 4, bits */ __be16 reserved2; __be16 vl15_dropped; __be32 port_xmit_data; __be32 port_rcv_data; __be32 port_xmit_packets; __be32 port_rcv_packets; } __attribute__ ((packed)); #define IB_PMA_SEL_SYMBOL_ERROR __constant_htons(0x0001) #define IB_PMA_SEL_LINK_ERROR_RECOVERY __constant_htons(0x0002) #define IB_PMA_SEL_LINK_DOWNED __constant_htons(0x0004) #define IB_PMA_SEL_PORT_RCV_ERRORS __constant_htons(0x0008) #define IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS __constant_htons(0x0010) #define IB_PMA_SEL_PORT_XMIT_DISCARDS __constant_htons(0x0040) #define IB_PMA_SEL_PORT_XMIT_DATA __constant_htons(0x1000) #define IB_PMA_SEL_PORT_RCV_DATA __constant_htons(0x2000) #define IB_PMA_SEL_PORT_XMIT_PACKETS __constant_htons(0x4000) #define IB_PMA_SEL_PORT_RCV_PACKETS __constant_htons(0x8000) struct ib_pma_portcounters_ext { u8 reserved; u8 port_select; __be16 counter_select; __be32 reserved1; __be64 port_xmit_data; __be64 port_rcv_data; __be64 port_xmit_packets; __be64 port_rcv_packets; __be64 port_unicast_xmit_packets; __be64 port_unicast_rcv_packets; __be64 port_multicast_xmit_packets; __be64 port_multicast_rcv_packets; } __attribute__ ((packed)); #define IB_PMA_SELX_PORT_XMIT_DATA __constant_htons(0x0001) #define IB_PMA_SELX_PORT_RCV_DATA __constant_htons(0x0002) #define IB_PMA_SELX_PORT_XMIT_PACKETS __constant_htons(0x0004) #define IB_PMA_SELX_PORT_RCV_PACKETS __constant_htons(0x0008) #define IB_PMA_SELX_PORT_UNI_XMIT_PACKETS __constant_htons(0x0010) #define IB_PMA_SELX_PORT_UNI_RCV_PACKETS __constant_htons(0x0020) #define IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS __constant_htons(0x0040) #define IB_PMA_SELX_PORT_MULTI_RCV_PACKETS __constant_htons(0x0080) static int recv_pma_get_classportinfo(struct ib_perf *pmp) { struct ib_pma_classportinfo *p = (struct ib_pma_classportinfo *)pmp->data; memset(pmp->data, 0, sizeof(pmp->data)); if (pmp->attr_mod != 0) pmp->status |= IB_SMP_INVALID_FIELD; /* Indicate AllPortSelect is valid (only one port anyway) */ p->cap_mask = __constant_cpu_to_be16(1 << 8); p->base_version = 1; p->class_version = 1; /* * Expected response time is 4.096 usec. * 2^18 == 1.073741824 * sec. */ p->resp_time_value = 18; return reply((struct ib_smp *) pmp); } /* * The PortSamplesControl.CounterMasks field is an array of 3 bit fields * which specify the N'th counter's capabilities. See ch. 16.1.3.2. * We support 5 counters which only count the mandatory quantities. */ #define COUNTER_MASK(q, n) (q << ((9 - n) * 3)) #define COUNTER_MASK0_9 \ __constant_cpu_to_be32(COUNTER_MASK(1, 0) | \ COUNTER_MASK(1, 1) | \ COUNTER_MASK(1, 2) | \ COUNTER_MASK(1, 3) | \ COUNTER_MASK(1, 4)) static int recv_pma_get_portsamplescontrol(struct ib_perf *pmp, struct ib_device *ibdev, u8 port) { struct ib_pma_portsamplescontrol *p = (struct ib_pma_portsamplescontrol *)pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); unsigned long flags; u8 port_select = p->port_select; memset(pmp->data, 0, sizeof(pmp->data)); p->port_select = port_select; if (pmp->attr_mod != 0 || (port_select != port && port_select != 0xFF)) pmp->status |= IB_SMP_INVALID_FIELD; /* * Ticks are 10x the link transfer period which for 2.5Gbs is 4 * 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). */ /* XXX This is WRONG. */ 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); p->sample_status = dev->pma_sample_status; p->sample_start = cpu_to_be32(dev->pma_sample_start); p->sample_interval = cpu_to_be32(dev->pma_sample_interval); p->tag = cpu_to_be16(dev->pma_tag); p->counter_select[0] = dev->pma_counter_select[0]; p->counter_select[1] = dev->pma_counter_select[1]; p->counter_select[2] = dev->pma_counter_select[2]; p->counter_select[3] = dev->pma_counter_select[3]; p->counter_select[4] = dev->pma_counter_select[4]; spin_unlock_irqrestore(&dev->pending_lock, flags); return reply((struct ib_smp *) pmp); } static int recv_pma_set_portsamplescontrol(struct ib_perf *pmp, struct ib_device *ibdev, u8 port) { struct ib_pma_portsamplescontrol *p = (struct ib_pma_portsamplescontrol *)pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); unsigned long flags; u32 start; int ret; if (pmp->attr_mod != 0 || (p->port_select != port && p->port_select != 0xFF)) { pmp->status |= IB_SMP_INVALID_FIELD; ret = reply((struct ib_smp *) pmp); goto bail; } start = be32_to_cpu(p->sample_start); if (start != 0) { spin_lock_irqsave(&dev->pending_lock, flags); if (dev->pma_sample_status == IB_PMA_SAMPLE_STATUS_DONE) { dev->pma_sample_status = IB_PMA_SAMPLE_STATUS_STARTED; dev->pma_sample_start = start; dev->pma_sample_interval = be32_to_cpu(p->sample_interval); dev->pma_tag = be16_to_cpu(p->tag); if (p->counter_select[0]) dev->pma_counter_select[0] = p->counter_select[0]; if (p->counter_select[1]) dev->pma_counter_select[1] = p->counter_select[1]; if (p->counter_select[2]) dev->pma_counter_select[2] = p->counter_select[2]; if (p->counter_select[3]) dev->pma_counter_select[3] = p->counter_select[3]; if (p->counter_select[4]) dev->pma_counter_select[4] = p->counter_select[4]; } spin_unlock_irqrestore(&dev->pending_lock, flags); } ret = recv_pma_get_portsamplescontrol(pmp, ibdev, port); bail: return ret; } static u64 get_counter(struct ipath_ibdev *dev, __be16 sel) { u64 ret; switch (sel) { case IB_PMA_PORT_XMIT_DATA: ret = dev->ipath_sword; break; case IB_PMA_PORT_RCV_DATA: ret = dev->ipath_rword; break; case IB_PMA_PORT_XMIT_PKTS: ret = dev->ipath_spkts; break; case IB_PMA_PORT_RCV_PKTS: ret = dev->ipath_rpkts; break; case IB_PMA_PORT_XMIT_WAIT: ret = dev->ipath_xmit_wait; break; default: ret = 0; } return ret; } static int recv_pma_get_portsamplesresult(struct ib_perf *pmp, struct ib_device *ibdev) { struct ib_pma_portsamplesresult *p = (struct ib_pma_portsamplesresult *)pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); int i; memset(pmp->data, 0, sizeof(pmp->data)); p->tag = cpu_to_be16(dev->pma_tag); p->sample_status = cpu_to_be16(dev->pma_sample_status); for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++) p->counter[i] = cpu_to_be32( get_counter(dev, dev->pma_counter_select[i])); return reply((struct ib_smp *) pmp); } static int recv_pma_get_portsamplesresult_ext(struct ib_perf *pmp, struct ib_device *ibdev) { struct ib_pma_portsamplesresult_ext *p = (struct ib_pma_portsamplesresult_ext *)pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); int i; memset(pmp->data, 0, sizeof(pmp->data)); p->tag = cpu_to_be16(dev->pma_tag); p->sample_status = cpu_to_be16(dev->pma_sample_status); /* 64 bits */ p->extended_width = __constant_cpu_to_be32(0x80000000); for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++) p->counter[i] = cpu_to_be64( get_counter(dev, dev->pma_counter_select[i])); return reply((struct ib_smp *) pmp); } static int recv_pma_get_portcounters(struct ib_perf *pmp, struct ib_device *ibdev, u8 port) { struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); struct ipath_layer_counters cntrs; u8 port_select = p->port_select; ipath_layer_get_counters(dev->dd, &cntrs); /* Adjust counters for any resets done. */ cntrs.symbol_error_counter -= dev->n_symbol_error_counter; cntrs.link_error_recovery_counter -= dev->n_link_error_recovery_counter; cntrs.link_downed_counter -= dev->n_link_downed_counter; cntrs.port_rcv_errors += dev->rcv_errors; cntrs.port_rcv_errors -= dev->n_port_rcv_errors; cntrs.port_rcv_remphys_errors -= dev->n_port_rcv_remphys_errors; cntrs.port_xmit_discards -= dev->n_port_xmit_discards; cntrs.port_xmit_data -= dev->n_port_xmit_data; cntrs.port_rcv_data -= dev->n_port_rcv_data; cntrs.port_xmit_packets -= dev->n_port_xmit_packets; cntrs.port_rcv_packets -= dev->n_port_rcv_packets; memset(pmp->data, 0, sizeof(pmp->data)); p->port_select = port_select; if (pmp->attr_mod != 0 || (port_select != port && port_select != 0xFF)) pmp->status |= IB_SMP_INVALID_FIELD; if (cntrs.symbol_error_counter > 0xFFFFUL) p->symbol_error_counter = __constant_cpu_to_be16(0xFFFF); else p->symbol_error_counter = cpu_to_be16((u16)cntrs.symbol_error_counter); if (cntrs.link_error_recovery_counter > 0xFFUL) p->link_error_recovery_counter = 0xFF; else p->link_error_recovery_counter = (u8)cntrs.link_error_recovery_counter; if (cntrs.link_downed_counter > 0xFFUL) p->link_downed_counter = 0xFF; else p->link_downed_counter = (u8)cntrs.link_downed_counter; if (cntrs.port_rcv_errors > 0xFFFFUL) p->port_rcv_errors = __constant_cpu_to_be16(0xFFFF); else p->port_rcv_errors = cpu_to_be16((u16) cntrs.port_rcv_errors); if (cntrs.port_rcv_remphys_errors > 0xFFFFUL) p->port_rcv_remphys_errors = __constant_cpu_to_be16(0xFFFF); else p->port_rcv_remphys_errors = cpu_to_be16((u16)cntrs.port_rcv_remphys_errors); if (cntrs.port_xmit_discards > 0xFFFFUL) p->port_xmit_discards = __constant_cpu_to_be16(0xFFFF); else p->port_xmit_discards = cpu_to_be16((u16)cntrs.port_xmit_discards); if (cntrs.port_xmit_data > 0xFFFFFFFFUL) p->port_xmit_data = __constant_cpu_to_be32(0xFFFFFFFF); else p->port_xmit_data = cpu_to_be32((u32)cntrs.port_xmit_data); if (cntrs.port_rcv_data > 0xFFFFFFFFUL) p->port_rcv_data = __constant_cpu_to_be32(0xFFFFFFFF); else p->port_rcv_data = cpu_to_be32((u32)cntrs.port_rcv_data); if (cntrs.port_xmit_packets > 0xFFFFFFFFUL) p->port_xmit_packets = __constant_cpu_to_be32(0xFFFFFFFF); else p->port_xmit_packets = cpu_to_be32((u32)cntrs.port_xmit_packets); if (cntrs.port_rcv_packets > 0xFFFFFFFFUL) p->port_rcv_packets = __constant_cpu_to_be32(0xFFFFFFFF); else p->port_rcv_packets = cpu_to_be32((u32) cntrs.port_rcv_packets); return reply((struct ib_smp *) pmp); } static int recv_pma_get_portcounters_ext(struct ib_perf *pmp, struct ib_device *ibdev, u8 port) { struct ib_pma_portcounters_ext *p = (struct ib_pma_portcounters_ext *)pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); u64 swords, rwords, spkts, rpkts, xwait; u8 port_select = p->port_select; ipath_layer_snapshot_counters(dev->dd, &swords, &rwords, &spkts, &rpkts, &xwait); /* Adjust counters for any resets done. */ swords -= dev->n_port_xmit_data; rwords -= dev->n_port_rcv_data; spkts -= dev->n_port_xmit_packets; rpkts -= dev->n_port_rcv_packets; memset(pmp->data, 0, sizeof(pmp->data)); p->port_select = port_select; if (pmp->attr_mod != 0 || (port_select != port && port_select != 0xFF)) pmp->status |= IB_SMP_INVALID_FIELD; p->port_xmit_data = cpu_to_be64(swords); p->port_rcv_data = cpu_to_be64(rwords); p->port_xmit_packets = cpu_to_be64(spkts); p->port_rcv_packets = cpu_to_be64(rpkts); p->port_unicast_xmit_packets = cpu_to_be64(dev->n_unicast_xmit); p->port_unicast_rcv_packets = cpu_to_be64(dev->n_unicast_rcv); p->port_multicast_xmit_packets = cpu_to_be64(dev->n_multicast_xmit); p->port_multicast_rcv_packets = cpu_to_be64(dev->n_multicast_rcv); return reply((struct ib_smp *) pmp); } static int recv_pma_set_portcounters(struct ib_perf *pmp, struct ib_device *ibdev, u8 port) { struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); struct ipath_layer_counters cntrs; /* * Since the HW doesn't support clearing counters, we save the * current count and subtract it from future responses. */ ipath_layer_get_counters(dev->dd, &cntrs); if (p->counter_select & IB_PMA_SEL_SYMBOL_ERROR) dev->n_symbol_error_counter = cntrs.symbol_error_counter; if (p->counter_select & IB_PMA_SEL_LINK_ERROR_RECOVERY) dev->n_link_error_recovery_counter = cntrs.link_error_recovery_counter; if (p->counter_select & IB_PMA_SEL_LINK_DOWNED) dev->n_link_downed_counter = cntrs.link_downed_counter; if (p->counter_select & IB_PMA_SEL_PORT_RCV_ERRORS) dev->n_port_rcv_errors = cntrs.port_rcv_errors + dev->rcv_errors; if (p->counter_select & IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS) dev->n_port_rcv_remphys_errors = cntrs.port_rcv_remphys_errors; if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DISCARDS) dev->n_port_xmit_discards = cntrs.port_xmit_discards; if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DATA) dev->n_port_xmit_data = cntrs.port_xmit_data; if (p->counter_select & IB_PMA_SEL_PORT_RCV_DATA) dev->n_port_rcv_data = cntrs.port_rcv_data; if (p->counter_select & IB_PMA_SEL_PORT_XMIT_PACKETS) dev->n_port_xmit_packets = cntrs.port_xmit_packets; if (p->counter_select & IB_PMA_SEL_PORT_RCV_PACKETS) dev->n_port_rcv_packets = cntrs.port_rcv_packets; return recv_pma_get_portcounters(pmp, ibdev, port); } static int recv_pma_set_portcounters_ext(struct ib_perf *pmp, struct ib_device *ibdev, u8 port) { struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); u64 swords, rwords, spkts, rpkts, xwait; ipath_layer_snapshot_counters(dev->dd, &swords, &rwords, &spkts, &rpkts, &xwait); if (p->counter_select & IB_PMA_SELX_PORT_XMIT_DATA) dev->n_port_xmit_data = swords; if (p->counter_select & IB_PMA_SELX_PORT_RCV_DATA) dev->n_port_rcv_data = rwords; if (p->counter_select & IB_PMA_SELX_PORT_XMIT_PACKETS) dev->n_port_xmit_packets = spkts; if (p->counter_select & IB_PMA_SELX_PORT_RCV_PACKETS) dev->n_port_rcv_packets = rpkts; if (p->counter_select & IB_PMA_SELX_PORT_UNI_XMIT_PACKETS) dev->n_unicast_xmit = 0; if (p->counter_select & IB_PMA_SELX_PORT_UNI_RCV_PACKETS) dev->n_unicast_rcv = 0; if (p->counter_select & IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS) dev->n_multicast_xmit = 0; if (p->counter_select & IB_PMA_SELX_PORT_MULTI_RCV_PACKETS) dev->n_multicast_rcv = 0; return recv_pma_get_portcounters_ext(pmp, ibdev, port); } static int process_subn(struct ib_device *ibdev, int mad_flags, u8 port_num, struct ib_mad *in_mad, struct ib_mad *out_mad) { struct ib_smp *smp = (struct ib_smp *)out_mad; struct ipath_ibdev *dev = to_idev(ibdev); int ret; *out_mad = *in_mad; if (smp->class_version != 1) { smp->status |= IB_SMP_UNSUP_VERSION; ret = reply(smp); goto bail; } /* Is the mkey in the process of expiring? */ if (dev->mkey_lease_timeout && jiffies >= dev->mkey_lease_timeout) { /* Clear timeout and mkey protection field. */ dev->mkey_lease_timeout = 0; dev->mkeyprot_resv_lmc &= 0x3F; } /* * M_Key checking depends on * Portinfo:M_Key_protect_bits */ if ((mad_flags & IB_MAD_IGNORE_MKEY) == 0 && dev->mkey != 0 && dev->mkey != smp->mkey && (smp->method == IB_MGMT_METHOD_SET || (smp->method == IB_MGMT_METHOD_GET && (dev->mkeyprot_resv_lmc >> 7) != 0))) { if (dev->mkey_violations != 0xFFFF) ++dev->mkey_violations; if (dev->mkey_lease_timeout || dev->mkey_lease_period == 0) { ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; goto bail; } dev->mkey_lease_timeout = jiffies + dev->mkey_lease_period * HZ; /* Future: Generate a trap notice. */ ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; goto bail; } else if (dev->mkey_lease_timeout) dev->mkey_lease_timeout = 0; switch (smp->method) { case IB_MGMT_METHOD_GET: switch (smp->attr_id) { case IB_SMP_ATTR_NODE_DESC: ret = recv_subn_get_nodedescription(smp, ibdev); goto bail; case IB_SMP_ATTR_NODE_INFO: ret = recv_subn_get_nodeinfo(smp, ibdev, port_num); goto bail; case IB_SMP_ATTR_GUID_INFO: ret = recv_subn_get_guidinfo(smp, ibdev); goto bail; case IB_SMP_ATTR_PORT_INFO: ret = recv_subn_get_portinfo(smp, ibdev, port_num); goto bail; case IB_SMP_ATTR_PKEY_TABLE: ret = recv_subn_get_pkeytable(smp, ibdev); goto bail; case IB_SMP_ATTR_SM_INFO: if (dev->port_cap_flags & IB_PORT_SM_DISABLED) { ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; goto bail; } if (dev->port_cap_flags & IB_PORT_SM) { ret = IB_MAD_RESULT_SUCCESS; goto bail; } /* FALLTHROUGH */ default: smp->status |= IB_SMP_UNSUP_METH_ATTR; ret = reply(smp); goto bail; } case IB_MGMT_METHOD_SET: switch (smp->attr_id) { case IB_SMP_ATTR_GUID_INFO: ret = recv_subn_set_guidinfo(smp, ibdev); goto bail; case IB_SMP_ATTR_PORT_INFO: ret = recv_subn_set_portinfo(smp, ibdev, port_num); goto bail; case IB_SMP_ATTR_PKEY_TABLE: ret = recv_subn_set_pkeytable(smp, ibdev); goto bail; case IB_SMP_ATTR_SM_INFO: if (dev->port_cap_flags & IB_PORT_SM_DISABLED) { ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; goto bail; } if (dev->port_cap_flags & IB_PORT_SM) { ret = IB_MAD_RESULT_SUCCESS; goto bail; } /* FALLTHROUGH */ default: smp->status |= IB_SMP_UNSUP_METH_ATTR; ret = reply(smp); goto bail; } case IB_MGMT_METHOD_GET_RESP: /* * The ib_mad module will call us to process responses * before checking for other consumers. * Just tell the caller to process it normally. */ ret = IB_MAD_RESULT_FAILURE; goto bail; default: smp->status |= IB_SMP_UNSUP_METHOD; ret = reply(smp); } bail: return ret; } static int process_perf(struct ib_device *ibdev, u8 port_num, struct ib_mad *in_mad, struct ib_mad *out_mad) { struct ib_perf *pmp = (struct ib_perf *)out_mad; int ret; *out_mad = *in_mad; if (pmp->class_version != 1) { pmp->status |= IB_SMP_UNSUP_VERSION; ret = reply((struct ib_smp *) pmp); goto bail; } switch (pmp->method) { case IB_MGMT_METHOD_GET: switch (pmp->attr_id) { case IB_PMA_CLASS_PORT_INFO: ret = recv_pma_get_classportinfo(pmp); goto bail; case IB_PMA_PORT_SAMPLES_CONTROL: ret = recv_pma_get_portsamplescontrol(pmp, ibdev, port_num); goto bail; case IB_PMA_PORT_SAMPLES_RESULT: ret = recv_pma_get_portsamplesresult(pmp, ibdev); goto bail; case IB_PMA_PORT_SAMPLES_RESULT_EXT: ret = recv_pma_get_portsamplesresult_ext(pmp, ibdev); goto bail; case IB_PMA_PORT_COUNTERS: ret = recv_pma_get_portcounters(pmp, ibdev, port_num); goto bail; case IB_PMA_PORT_COUNTERS_EXT: ret = recv_pma_get_portcounters_ext(pmp, ibdev, port_num); goto bail; default: pmp->status |= IB_SMP_UNSUP_METH_ATTR; ret = reply((struct ib_smp *) pmp); goto bail; } case IB_MGMT_METHOD_SET: switch (pmp->attr_id) { case IB_PMA_PORT_SAMPLES_CONTROL: ret = recv_pma_set_portsamplescontrol(pmp, ibdev, port_num); goto bail; case IB_PMA_PORT_COUNTERS: ret = recv_pma_set_portcounters(pmp, ibdev, port_num); goto bail; case IB_PMA_PORT_COUNTERS_EXT: ret = recv_pma_set_portcounters_ext(pmp, ibdev, port_num); goto bail; default: pmp->status |= IB_SMP_UNSUP_METH_ATTR; ret = reply((struct ib_smp *) pmp); goto bail; } case IB_MGMT_METHOD_GET_RESP: /* * The ib_mad module will call us to process responses * before checking for other consumers. * Just tell the caller to process it normally. */ ret = IB_MAD_RESULT_FAILURE; goto bail; default: pmp->status |= IB_SMP_UNSUP_METHOD; ret = reply((struct ib_smp *) pmp); } bail: return ret; } /** * ipath_process_mad - process an incoming MAD packet * @ibdev: the infiniband device this packet came in on * @mad_flags: MAD flags * @port_num: the port number this packet came in on * @in_wc: the work completion entry for this packet * @in_grh: the global route header for this packet * @in_mad: the incoming MAD * @out_mad: any outgoing MAD reply * * Returns IB_MAD_RESULT_SUCCESS if this is a MAD that we are not * interested in processing. * * Note that the verbs framework has already done the MAD sanity checks, * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE * MADs. * * This is called by the ib_mad module. */ int ipath_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, struct ib_wc *in_wc, struct ib_grh *in_grh, struct ib_mad *in_mad, struct ib_mad *out_mad) { struct ipath_ibdev *dev = to_idev(ibdev); int ret; /* * Snapshot current HW counters to "clear" them. * This should be done when the driver is loaded except that for * some reason we get a zillion errors when brining up the link. */ if (dev->rcv_errors == 0) { struct ipath_layer_counters cntrs; ipath_layer_get_counters(to_idev(ibdev)->dd, &cntrs); dev->rcv_errors++; dev->n_symbol_error_counter = cntrs.symbol_error_counter; dev->n_link_error_recovery_counter = cntrs.link_error_recovery_counter; dev->n_link_downed_counter = cntrs.link_downed_counter; dev->n_port_rcv_errors = cntrs.port_rcv_errors + 1; dev->n_port_rcv_remphys_errors = cntrs.port_rcv_remphys_errors; dev->n_port_xmit_discards = cntrs.port_xmit_discards; dev->n_port_xmit_data = cntrs.port_xmit_data; dev->n_port_rcv_data = cntrs.port_rcv_data; dev->n_port_xmit_packets = cntrs.port_xmit_packets; dev->n_port_rcv_packets = cntrs.port_rcv_packets; } switch (in_mad->mad_hdr.mgmt_class) { case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: case IB_MGMT_CLASS_SUBN_LID_ROUTED: ret = process_subn(ibdev, mad_flags, port_num, in_mad, out_mad); goto bail; case IB_MGMT_CLASS_PERF_MGMT: ret = process_perf(ibdev, port_num, in_mad, out_mad); goto bail; default: ret = IB_MAD_RESULT_SUCCESS; } bail: return ret; }