/* * 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 * 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 #include "ipath_kernel.h" #include "ipath_verbs.h" #include "ipath_common.h" #define IB_SMP_UNSUP_VERSION cpu_to_be16(0x0004) #define IB_SMP_UNSUP_METHOD cpu_to_be16(0x0008) #define IB_SMP_UNSUP_METH_ATTR cpu_to_be16(0x000C) #define IB_SMP_INVALID_FIELD cpu_to_be16(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; memcpy(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, majrev, minrev; /* GUID 0 is illegal */ if (smp->attr_mod || (dd->ipath_guid == 0)) 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 = dd->ipath_guid; nip->port_guid = dd->ipath_guid; nip->partition_cap = cpu_to_be16(ipath_get_npkeys(dd)); nip->device_id = cpu_to_be16(dd->ipath_deviceid); majrev = dd->ipath_majrev; minrev = dd->ipath_minrev; nip->revision = cpu_to_be32((majrev << 16) | minrev); nip->local_port_num = port; vendor = dd->ipath_vendorid; nip->vendor_id[0] = IPATH_SRC_OUI_1; nip->vendor_id[1] = IPATH_SRC_OUI_2; nip->vendor_id[2] = IPATH_SRC_OUI_3; 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) { __be64 g = to_idev(ibdev)->dd->ipath_guid; if (g == 0) /* GUID 0 is illegal */ smp->status |= IB_SMP_INVALID_FIELD; else /* The first is a copy of the read-only HW GUID. */ *p = g; } else smp->status |= IB_SMP_INVALID_FIELD; 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) { return (dd->ipath_ibcctrl >> INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT) & INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK; } /** * set_overrunthreshold - set the overrun threshold * @dd: the infinipath device * @n: the new threshold * * Note that this will only take effect when the link state changes. */ static int set_overrunthreshold(struct ipath_devdata *dd, unsigned n) { unsigned v; v = (dd->ipath_ibcctrl >> INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT) & INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK; if (v != n) { dd->ipath_ibcctrl &= ~(INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK << INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT); dd->ipath_ibcctrl |= (u64) n << INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT; ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, dd->ipath_ibcctrl); } return 0; } static int get_phyerrthreshold(struct ipath_devdata *dd) { return (dd->ipath_ibcctrl >> INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) & INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK; } /** * set_phyerrthreshold - set the physical error threshold * @dd: the infinipath device * @n: the new threshold * * Note that this will only take effect when the link state changes. */ static int set_phyerrthreshold(struct ipath_devdata *dd, unsigned n) { unsigned v; v = (dd->ipath_ibcctrl >> INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) & INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK; if (v != n) { dd->ipath_ibcctrl &= ~(INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK << INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT); dd->ipath_ibcctrl |= (u64) n << INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT; ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, dd->ipath_ibcctrl); } return 0; } /** * get_linkdowndefaultstate - get the default linkdown state * @dd: the infinipath device * * Returns zero if the default is POLL, 1 if the default is SLEEP. */ static int get_linkdowndefaultstate(struct ipath_devdata *dd) { return !!(dd->ipath_ibcctrl & INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE); } 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; 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); dd = dev->dd; /* 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 == 0) pip->mkey = dev->mkey; pip->gid_prefix = dev->gid_prefix; 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 = 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 & 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; 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 */ /* 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(dd) - dev->z_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 = (get_phyerrthreshold(dd) << 4) | get_overrunthreshold(dd); /* pip->max_credit_hint; */ 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); bail: return ret; } /** * get_pkeys - return the PKEY table for port 0 * @dd: the infinipath device * @pkeys: the pkey table is placed here */ static int get_pkeys(struct ipath_devdata *dd, u16 * pkeys) { /* always a kernel port, no locking needed */ struct ipath_portdata *pd = dd->ipath_pd[0]; memcpy(pkeys, pd->port_pkeys, sizeof(pd->port_pkeys)); return 0; } 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_get_npkeys(dev->dd); 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); } /** * set_linkdowndefaultstate - set the default linkdown state * @dd: the infinipath device * @sleep: the new state * * Note that this will only take effect when the link state changes. */ static int set_linkdowndefaultstate(struct ipath_devdata *dd, int sleep) { if (sleep) dd->ipath_ibcctrl |= INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE; else dd->ipath_ibcctrl &= ~INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE; ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, dd->ipath_ibcctrl); return 0; } /** * 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; struct ipath_devdata *dd; char clientrereg = 0; u16 lid, smlid; u8 lwe; u8 lse; u8 state; u16 lstate; u32 mtu; int ret, ore; if (be32_to_cpu(smp->attr_mod) > ibdev->phys_port_cnt) goto err; dev = to_idev(ibdev); dd = dev->dd; 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 (dd->ipath_lid != lid || dd->ipath_lmc != (pip->mkeyprot_resv_lmc & 7)) { /* Must be a valid unicast LID address. */ if (lid == 0 || lid >= IPATH_MULTICAST_LID_BASE) goto err; ipath_set_lid(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 >= IPATH_MULTICAST_LID_BASE) goto err; dev->sm_lid = smlid; event.event = IB_EVENT_SM_CHANGE; ib_dispatch_event(&event); } /* Allow 1x or 4x to be set (see 14.2.6.6). */ lwe = pip->link_width_enabled; 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); } /* Allow 2.5 or 5.0 Gbs. */ lse = pip->linkspeedactive_enabled & 0xF; 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) { case 0: /* NOP */ break; case 1: /* SLEEP */ if (set_linkdowndefaultstate(dd, 1)) goto err; break; case 2: /* POLL */ if (set_linkdowndefaultstate(dd, 0)) goto err; break; default: goto err; } dev->mkeyprot = pip->mkeyprot_resv_lmc >> 6; 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: if (!ipath_mtu4096) goto err; mtu = 4096; break; default: /* XXX We have already partially updated our state! */ goto err; } ipath_set_mtu(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->z_pkey_violations = ipath_get_cr_errpkey(dd); if (pip->qkey_violations == 0) dev->qkey_violations = 0; ore = pip->localphyerrors_overrunerrors; if (set_phyerrthreshold(dd, (ore >> 4) & 0xF)) goto err; if (set_overrunthreshold(dd, (ore & 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; 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) lstate = IPATH_IB_LINKDOWN_ONLY; 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_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; case IB_PORT_ARMED: ipath_set_linkstate(dd, IPATH_IB_LINKARM); break; case IB_PORT_ACTIVE: ipath_set_linkstate(dd, IPATH_IB_LINKACTIVE); 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; } /** * rm_pkey - decrecment the reference count for the given PKEY * @dd: the infinipath device * @key: the PKEY index * * Return true if this was the last reference and the hardware table entry * needs to be changed. */ static int rm_pkey(struct ipath_devdata *dd, u16 key) { int i; int ret; for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { if (dd->ipath_pkeys[i] != key) continue; if (atomic_dec_and_test(&dd->ipath_pkeyrefs[i])) { dd->ipath_pkeys[i] = 0; ret = 1; goto bail; } break; } ret = 0; bail: return ret; } /** * add_pkey - add the given PKEY to the hardware table * @dd: the infinipath device * @key: the PKEY * * Return an error code if unable to add the entry, zero if no change, * or 1 if the hardware PKEY register needs to be updated. */ static int add_pkey(struct ipath_devdata *dd, u16 key) { int i; u16 lkey = key & 0x7FFF; int any = 0; int ret; if (lkey == 0x7FFF) { ret = 0; goto bail; } /* Look for an empty slot or a matching PKEY. */ for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { if (!dd->ipath_pkeys[i]) { any++; continue; } /* If it matches exactly, try to increment the ref count */ if (dd->ipath_pkeys[i] == key) { if (atomic_inc_return(&dd->ipath_pkeyrefs[i]) > 1) { ret = 0; goto bail; } /* Lost the race. Look for an empty slot below. */ atomic_dec(&dd->ipath_pkeyrefs[i]); any++; } /* * It makes no sense to have both the limited and unlimited * PKEY set at the same time since the unlimited one will * disable the limited one. */ if ((dd->ipath_pkeys[i] & 0x7FFF) == lkey) { ret = -EEXIST; goto bail; } } if (!any) { ret = -EBUSY; goto bail; } for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { if (!dd->ipath_pkeys[i] && atomic_inc_return(&dd->ipath_pkeyrefs[i]) == 1) { /* for ipathstats, etc. */ ipath_stats.sps_pkeys[i] = lkey; dd->ipath_pkeys[i] = key; ret = 1; goto bail; } } ret = -EBUSY; bail: return ret; } /** * set_pkeys - set the PKEY table for port 0 * @dd: the infinipath device * @pkeys: the PKEY table */ static int set_pkeys(struct ipath_devdata *dd, u16 *pkeys) { struct ipath_portdata *pd; int i; int changed = 0; /* always a kernel port, no locking needed */ pd = dd->ipath_pd[0]; for (i = 0; i < ARRAY_SIZE(pd->port_pkeys); i++) { u16 key = pkeys[i]; u16 okey = pd->port_pkeys[i]; if (key == okey) continue; /* * The value of this PKEY table entry is changing. * Remove the old entry in the hardware's array of PKEYs. */ if (okey & 0x7FFF) changed |= rm_pkey(dd, okey); if (key & 0x7FFF) { int ret = add_pkey(dd, key); if (ret < 0) key = 0; else changed |= ret; } pd->port_pkeys[i] = key; } if (changed) { u64 pkey; pkey = (u64) dd->ipath_pkeys[0] | ((u64) dd->ipath_pkeys[1] << 16) | ((u64) dd->ipath_pkeys[2] << 32) | ((u64) dd->ipath_pkeys[3] << 48); ipath_cdbg(VERBOSE, "p0 new pkey reg %llx\n", (unsigned long long) pkey); ipath_write_kreg(dd, dd->ipath_kregs->kr_partitionkey, pkey); } return 0; } 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_get_npkeys(dev->dd); for (i = 0; i < n; i++) q[i] = be16_to_cpu(p[i]); if (startpx != 0 || set_pkeys(dev->dd, q) != 0) smp->status |= IB_SMP_INVALID_FIELD; return recv_subn_get_pkeytable(smp, ibdev); } static int recv_pma_get_classportinfo(struct ib_pma_mad *pmp) { struct ib_class_port_info *p = (struct ib_class_port_info *)pmp->data; memset(pmp->data, 0, sizeof(pmp->data)); if (pmp->mad_hdr.attr_mod != 0) pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; /* Indicate AllPortSelect is valid (only one port anyway) */ p->capability_mask = 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 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_pma_mad *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); struct ipath_cregs const *crp = dev->dd->ipath_cregs; unsigned long flags; u8 port_select = p->port_select; memset(pmp->data, 0, sizeof(pmp->data)); p->port_select = port_select; if (pmp->mad_hdr.attr_mod != 0 || (port_select != port && port_select != 0xFF)) pmp->mad_hdr.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). 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. */ 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); if (crp->cr_psstat) p->sample_status = ipath_read_creg32(dev->dd, crp->cr_psstat); else 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_pma_mad *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); struct ipath_cregs const *crp = dev->dd->ipath_cregs; unsigned long flags; u8 status; int ret; if (pmp->mad_hdr.attr_mod != 0 || (p->port_select != port && p->port_select != 0xFF)) { pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; ret = reply((struct ib_smp *) pmp); goto bail; } spin_lock_irqsave(&dev->pending_lock, flags); if (crp->cr_psstat) status = ipath_read_creg32(dev->dd, crp->cr_psstat); else status = dev->pma_sample_status; if (status == IB_PMA_SAMPLE_STATUS_DONE) { dev->pma_sample_start = be32_to_cpu(p->sample_start); dev->pma_sample_interval = be32_to_cpu(p->sample_interval); dev->pma_tag = be16_to_cpu(p->tag); dev->pma_counter_select[0] = p->counter_select[0]; dev->pma_counter_select[1] = p->counter_select[1]; dev->pma_counter_select[2] = p->counter_select[2]; dev->pma_counter_select[3] = p->counter_select[3]; dev->pma_counter_select[4] = p->counter_select[4]; if (crp->cr_psstat) { ipath_write_creg(dev->dd, crp->cr_psinterval, dev->pma_sample_interval); ipath_write_creg(dev->dd, crp->cr_psstart, dev->pma_sample_start); } else dev->pma_sample_status = IB_PMA_SAMPLE_STATUS_STARTED; } 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, struct ipath_cregs const *crp, __be16 sel) { u64 ret; switch (sel) { case IB_PMA_PORT_XMIT_DATA: ret = (crp->cr_psxmitdatacount) ? ipath_read_creg32(dev->dd, crp->cr_psxmitdatacount) : dev->ipath_sword; break; case IB_PMA_PORT_RCV_DATA: ret = (crp->cr_psrcvdatacount) ? ipath_read_creg32(dev->dd, crp->cr_psrcvdatacount) : dev->ipath_rword; break; case IB_PMA_PORT_XMIT_PKTS: ret = (crp->cr_psxmitpktscount) ? ipath_read_creg32(dev->dd, crp->cr_psxmitpktscount) : dev->ipath_spkts; break; case IB_PMA_PORT_RCV_PKTS: ret = (crp->cr_psrcvpktscount) ? ipath_read_creg32(dev->dd, crp->cr_psrcvpktscount) : dev->ipath_rpkts; break; case IB_PMA_PORT_XMIT_WAIT: ret = (crp->cr_psxmitwaitcount) ? ipath_read_creg32(dev->dd, crp->cr_psxmitwaitcount) : dev->ipath_xmit_wait; break; default: ret = 0; } return ret; } static int recv_pma_get_portsamplesresult(struct ib_pma_mad *pmp, struct ib_device *ibdev) { struct ib_pma_portsamplesresult *p = (struct ib_pma_portsamplesresult *)pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); struct ipath_cregs const *crp = dev->dd->ipath_cregs; u8 status; int i; memset(pmp->data, 0, sizeof(pmp->data)); p->tag = cpu_to_be16(dev->pma_tag); if (crp->cr_psstat) status = ipath_read_creg32(dev->dd, crp->cr_psstat); else status = dev->pma_sample_status; p->sample_status = cpu_to_be16(status); for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++) p->counter[i] = (status != IB_PMA_SAMPLE_STATUS_DONE) ? 0 : cpu_to_be32( get_counter(dev, crp, dev->pma_counter_select[i])); return reply((struct ib_smp *) pmp); } static int recv_pma_get_portsamplesresult_ext(struct ib_pma_mad *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); struct ipath_cregs const *crp = dev->dd->ipath_cregs; u8 status; int i; memset(pmp->data, 0, sizeof(pmp->data)); p->tag = cpu_to_be16(dev->pma_tag); if (crp->cr_psstat) status = ipath_read_creg32(dev->dd, crp->cr_psstat); else status = dev->pma_sample_status; p->sample_status = cpu_to_be16(status); /* 64 bits */ p->extended_width = cpu_to_be32(0x80000000); for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++) p->counter[i] = (status != IB_PMA_SAMPLE_STATUS_DONE) ? 0 : cpu_to_be64( get_counter(dev, crp, dev->pma_counter_select[i])); return reply((struct ib_smp *) pmp); } static int recv_pma_get_portcounters(struct ib_pma_mad *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_verbs_counters cntrs; u8 port_select = p->port_select; ipath_get_counters(dev->dd, &cntrs); /* Adjust counters for any resets done. */ cntrs.symbol_error_counter -= dev->z_symbol_error_counter; cntrs.link_error_recovery_counter -= dev->z_link_error_recovery_counter; cntrs.link_downed_counter -= dev->z_link_downed_counter; cntrs.port_rcv_errors += dev->rcv_errors; cntrs.port_rcv_errors -= dev->z_port_rcv_errors; cntrs.port_rcv_remphys_errors -= dev->z_port_rcv_remphys_errors; cntrs.port_xmit_discards -= dev->z_port_xmit_discards; cntrs.port_xmit_data -= dev->z_port_xmit_data; cntrs.port_rcv_data -= dev->z_port_rcv_data; cntrs.port_xmit_packets -= dev->z_port_xmit_packets; cntrs.port_rcv_packets -= dev->z_port_rcv_packets; cntrs.local_link_integrity_errors -= dev->z_local_link_integrity_errors; cntrs.excessive_buffer_overrun_errors -= dev->z_excessive_buffer_overrun_errors; cntrs.vl15_dropped -= dev->z_vl15_dropped; cntrs.vl15_dropped += dev->n_vl15_dropped; memset(pmp->data, 0, sizeof(pmp->data)); p->port_select = port_select; if (pmp->mad_hdr.attr_mod != 0 || (port_select != port && port_select != 0xFF)) pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; if (cntrs.symbol_error_counter > 0xFFFFUL) p->symbol_error_counter = 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 = 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 = 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 = cpu_to_be16(0xFFFF); else p->port_xmit_discards = cpu_to_be16((u16)cntrs.port_xmit_discards); if (cntrs.local_link_integrity_errors > 0xFUL) cntrs.local_link_integrity_errors = 0xFUL; if (cntrs.excessive_buffer_overrun_errors > 0xFUL) cntrs.excessive_buffer_overrun_errors = 0xFUL; p->link_overrun_errors = (cntrs.local_link_integrity_errors << 4) | cntrs.excessive_buffer_overrun_errors; if (cntrs.vl15_dropped > 0xFFFFUL) p->vl15_dropped = cpu_to_be16(0xFFFF); else p->vl15_dropped = cpu_to_be16((u16)cntrs.vl15_dropped); if (cntrs.port_xmit_data > 0xFFFFFFFFUL) p->port_xmit_data = 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 = 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 = 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 = 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_pma_mad *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_snapshot_counters(dev->dd, &swords, &rwords, &spkts, &rpkts, &xwait); /* Adjust counters for any resets done. */ swords -= dev->z_port_xmit_data; rwords -= dev->z_port_rcv_data; spkts -= dev->z_port_xmit_packets; rpkts -= dev->z_port_rcv_packets; memset(pmp->data, 0, sizeof(pmp->data)); p->port_select = port_select; if (pmp->mad_hdr.attr_mod != 0 || (port_select != port && port_select != 0xFF)) pmp->mad_hdr.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_pma_mad *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_verbs_counters cntrs; /* * Since the HW doesn't support clearing counters, we save the * current count and subtract it from future responses. */ ipath_get_counters(dev->dd, &cntrs); if (p->counter_select & IB_PMA_SEL_SYMBOL_ERROR) dev->z_symbol_error_counter = cntrs.symbol_error_counter; if (p->counter_select & IB_PMA_SEL_LINK_ERROR_RECOVERY) dev->z_link_error_recovery_counter = cntrs.link_error_recovery_counter; if (p->counter_select & IB_PMA_SEL_LINK_DOWNED) dev->z_link_downed_counter = cntrs.link_downed_counter; if (p->counter_select & IB_PMA_SEL_PORT_RCV_ERRORS) dev->z_port_rcv_errors = cntrs.port_rcv_errors + dev->rcv_errors; if (p->counter_select & IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS) dev->z_port_rcv_remphys_errors = cntrs.port_rcv_remphys_errors; if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DISCARDS) dev->z_port_xmit_discards = cntrs.port_xmit_discards; if (p->counter_select & IB_PMA_SEL_LOCAL_LINK_INTEGRITY_ERRORS) dev->z_local_link_integrity_errors = cntrs.local_link_integrity_errors; if (p->counter_select & IB_PMA_SEL_EXCESSIVE_BUFFER_OVERRUNS) dev->z_excessive_buffer_overrun_errors = cntrs.excessive_buffer_overrun_errors; if (p->counter_select & IB_PMA_SEL_PORT_VL15_DROPPED) { dev->n_vl15_dropped = 0; dev->z_vl15_dropped = cntrs.vl15_dropped; } if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DATA) dev->z_port_xmit_data = cntrs.port_xmit_data; if (p->counter_select & IB_PMA_SEL_PORT_RCV_DATA) dev->z_port_rcv_data = cntrs.port_rcv_data; if (p->counter_select & IB_PMA_SEL_PORT_XMIT_PACKETS) dev->z_port_xmit_packets = cntrs.port_xmit_packets; if (p->counter_select & IB_PMA_SEL_PORT_RCV_PACKETS) dev->z_port_rcv_packets = cntrs.port_rcv_packets; return recv_pma_get_portcounters(pmp, ibdev, port); } static int recv_pma_set_portcounters_ext(struct ib_pma_mad *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_snapshot_counters(dev->dd, &swords, &rwords, &spkts, &rpkts, &xwait); if (p->counter_select & IB_PMA_SELX_PORT_XMIT_DATA) dev->z_port_xmit_data = swords; if (p->counter_select & IB_PMA_SELX_PORT_RCV_DATA) dev->z_port_rcv_data = rwords; if (p->counter_select & IB_PMA_SELX_PORT_XMIT_PACKETS) dev->z_port_xmit_packets = spkts; if (p->counter_select & IB_PMA_SELX_PORT_RCV_PACKETS) dev->z_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 && time_after_eq(jiffies, dev->mkey_lease_timeout)) { /* Clear timeout and mkey protection field. */ dev->mkey_lease_timeout = 0; dev->mkeyprot = 0; } /* * 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 >= 2))) { 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_TRAP: case IB_MGMT_METHOD_REPORT: case IB_MGMT_METHOD_REPORT_RESP: case IB_MGMT_METHOD_TRAP_REPRESS: 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_SUCCESS; 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_pma_mad *pmp = (struct ib_pma_mad *)out_mad; int ret; *out_mad = *in_mad; if (pmp->mad_hdr.class_version != 1) { pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION; ret = reply((struct ib_smp *) pmp); goto bail; } switch (pmp->mad_hdr.method) { case IB_MGMT_METHOD_GET: switch (pmp->mad_hdr.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->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; ret = reply((struct ib_smp *) pmp); goto bail; } case IB_MGMT_METHOD_SET: switch (pmp->mad_hdr.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->mad_hdr.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_SUCCESS; goto bail; default: pmp->mad_hdr.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) { int ret; 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; }