--- /dev/null
+/*
+ * 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 <rdma/ib_smi.h>
+
+#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);
+}
+
+struct port_info {
+ __be64 mkey;
+ __be64 gid_prefix;
+ __be16 lid;
+ __be16 sm_lid;
+ __be32 cap_mask;
+ __be16 diag_code;
+ __be16 mkey_lease_period;
+ u8 local_port_num;
+ u8 link_width_enabled;
+ u8 link_width_supported;
+ u8 link_width_active;
+ u8 linkspeed_portstate; /* 4 bits, 4 bits */
+ u8 portphysstate_linkdown; /* 4 bits, 4 bits */
+ u8 mkeyprot_resv_lmc; /* 2 bits, 3, 3 */
+ u8 linkspeedactive_enabled; /* 4 bits, 4 bits */
+ u8 neighbormtu_mastersmsl; /* 4 bits, 4 bits */
+ u8 vlcap_inittype; /* 4 bits, 4 bits */
+ u8 vl_high_limit;
+ u8 vl_arb_high_cap;
+ u8 vl_arb_low_cap;
+ u8 inittypereply_mtucap; /* 4 bits, 4 bits */
+ u8 vlstallcnt_hoqlife; /* 3 bits, 5 bits */
+ u8 operationalvl_pei_peo_fpi_fpo; /* 4 bits, 1, 1, 1, 1 */
+ __be16 mkey_violations;
+ __be16 pkey_violations;
+ __be16 qkey_violations;
+ u8 guid_cap;
+ u8 clientrereg_resv_subnetto; /* 1 bit, 2 bits, 5 */
+ u8 resv_resptimevalue; /* 3 bits, 5 bits */
+ u8 localphyerrors_overrunerrors; /* 4 bits, 4 bits */
+ __be16 max_credit_hint;
+ u8 resv;
+ u8 link_roundtrip_latency[3];
+} __attribute__ ((packed));
+
+static int recv_subn_get_portinfo(struct ib_smp *smp,
+ struct ib_device *ibdev, u8 port)
+{
+ struct ipath_ibdev *dev;
+ struct port_info *pip = (struct 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 port_info *pip = (struct 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_LID_CHANGE;
+ 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;
+}
git://git.onelab.eu / linux-2.6.git / blobdiff