[PATCH v2 23/49] IB/hfi1: add OPA mad handling part1

Mike Marciniszyn
2015-06-15T13:28:02Z

drivers/infiniband/hw/hfi1/mad.c | 2744 ++++++++++++++++++++++++++++++++++++++
1 file changed, 2744 insertions(+)
create mode 100644 drivers/infiniband/hw/hfi1/mad.c

diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c
new file mode 100644
index 0000000..77bd455
--- /dev/null
+++ b/drivers/infiniband/hw/hfi1/mad.c
@@ -0,0 +1,2744 @@
+/*
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * 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.
+ * - Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <linux/net.h>
+#define OPA_NUM_PKEY_BLOCKS_PER_SMP (OPA_SMP_DR_DATA_SIZE \
+ / (OPA_PARTITION_TABLE_BLK_SIZE * sizeof(u16)))
+
+#include "hfi.h"
+#include "mad.h"
+#include "trace.h"
+
+/* the reset value from the FM is supposed to be 0xffff, handle both */
+#define OPA_LINK_WIDTH_RESET_OLD 0x0fff
+#define OPA_LINK_WIDTH_RESET 0xffff
+
+static int reply(struct ib_mad_hdr *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 inline void clear_opa_smp_data(struct opa_smp *smp)
+{
+ void *data = opa_get_smp_data(smp);
+ size_t size = opa_get_smp_data_size(smp);
+
+ memset(data, 0, size);
+}
+
+static void send_trap(struct hfi1_ibport *ibp, void *data, unsigned len)
+{
+ struct ib_mad_send_buf *send_buf;
+ struct ib_mad_agent *agent;
+ struct ib_smp *smp;
+ int ret;
+ unsigned long flags;
+ unsigned long timeout;
+ int pkey_idx;
+ u32 qpn = ppd_from_ibp(ibp)->sm_trap_qp;
+
+ agent = ibp->send_agent;
+ if (!agent)
+ return;
+
+ /* o14-3.2.1 */
+ if (ppd_from_ibp(ibp)->lstate != IB_PORT_ACTIVE)
+ return;
+
+ /* o14-2 */
+ if (ibp->trap_timeout && time_before(jiffies, ibp->trap_timeout))
+ return;
+
+ pkey_idx = hfi1_lookup_pkey_idx(ibp, LIM_MGMT_P_KEY);
+ if (pkey_idx < 0) {
+ pr_warn("%s: failed to find limited mgmt pkey, defaulting 0x%x\n",
+ __func__, hfi1_get_pkey(ibp, 1));
+ pkey_idx = 1;
+ }
+
+ send_buf = ib_create_send_mad(agent, qpn, pkey_idx, 0,
+ IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
+ GFP_ATOMIC, IB_MGMT_BASE_VERSION);
+ if (IS_ERR(send_buf))
+ return;
+
+ smp = send_buf->mad;
+ smp->base_version = IB_MGMT_BASE_VERSION;
+ smp->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
+ smp->class_version = 1;
+ smp->method = IB_MGMT_METHOD_TRAP;
+ ibp->tid++;
+ smp->tid = cpu_to_be64(ibp->tid);
+ smp->attr_id = IB_SMP_ATTR_NOTICE;
+ /* o14-1: smp->mkey = 0; */
+ memcpy(smp->data, data, len);
+
+ spin_lock_irqsave(&ibp->lock, flags);
+ if (!ibp->sm_ah) {
+ if (ibp->sm_lid != be16_to_cpu(IB_LID_PERMISSIVE)) {
+ struct ib_ah *ah;
+
+ ah = hfi1_create_qp0_ah(ibp, ibp->sm_lid);
+ if (IS_ERR(ah))
+ ret = PTR_ERR(ah);
+ else {
+ send_buf->ah = ah;
+ ibp->sm_ah = to_iah(ah);
+ ret = 0;
+ }
+ } else
+ ret = -EINVAL;
+ } else {
+ send_buf->ah = &ibp->sm_ah->ibah;
+ ret = 0;
+ }
+ spin_unlock_irqrestore(&ibp->lock, flags);
+
+ if (!ret)
+ ret = ib_post_send_mad(send_buf, NULL);
+ if (!ret) {
+ /* 4.096 usec. */
+ timeout = (4096 * (1UL << ibp->subnet_timeout)) / 1000;
+ ibp->trap_timeout = jiffies + usecs_to_jiffies(timeout);
+ } else {
+ ib_free_send_mad(send_buf);
+ ibp->trap_timeout = 0;
+ }
+}
+
+/*
+ * Send a bad [PQ]_Key trap (ch. 14.3.8).
+ */
+void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
+ u32 qp1, u32 qp2, __be16 lid1, __be16 lid2)
+{
+ struct ib_mad_notice_attr data;
+
+ if (trap_num == IB_NOTICE_TRAP_BAD_PKEY)
+ ibp->pkey_violations++;
+ else
+ ibp->qkey_violations++;
+ ibp->n_pkt_drops++;
+
+ /* Send violation trap */
+ data.generic_type = IB_NOTICE_TYPE_SECURITY;
+ data.prod_type_msb = 0;
+ data.prod_type_lsb = IB_NOTICE_PROD_CA;
+ data.trap_num = trap_num;
+ data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
+ data.toggle_count = 0;
+ memset(&data.details, 0, sizeof(data.details));
+ data.details.ntc_257_258.lid1 = lid1;
+ data.details.ntc_257_258.lid2 = lid2;
+ data.details.ntc_257_258.key = cpu_to_be32(key);
+ data.details.ntc_257_258.sl_qp1 = cpu_to_be32((sl << 28) | qp1);
+ data.details.ntc_257_258.qp2 = cpu_to_be32(qp2);
+
+ send_trap(ibp, &data, sizeof(data));
+}
+
+/*
+ * Send a bad M_Key trap (ch. 14.3.9).
+ */
+static void bad_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
+ __be64 mkey, __be32 dr_slid, u8 return_path[], u8 hop_cnt)
+{
+ struct ib_mad_notice_attr data;
+
+ /* Send violation trap */
+ data.generic_type = IB_NOTICE_TYPE_SECURITY;
+ data.prod_type_msb = 0;
+ data.prod_type_lsb = IB_NOTICE_PROD_CA;
+ data.trap_num = IB_NOTICE_TRAP_BAD_MKEY;
+ data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
+ data.toggle_count = 0;
+ memset(&data.details, 0, sizeof(data.details));
+ data.details.ntc_256.lid = data.issuer_lid;
+ data.details.ntc_256.method = mad->method;
+ data.details.ntc_256.attr_id = mad->attr_id;
+ data.details.ntc_256.attr_mod = mad->attr_mod;
+ data.details.ntc_256.mkey = mkey;
+ if (mad->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
+
+ data.details.ntc_256.dr_slid = (__force __be16)dr_slid;
+ data.details.ntc_256.dr_trunc_hop = IB_NOTICE_TRAP_DR_NOTICE;
+ if (hop_cnt > ARRAY_SIZE(data.details.ntc_256.dr_rtn_path)) {
+ data.details.ntc_256.dr_trunc_hop |=
+ IB_NOTICE_TRAP_DR_TRUNC;
+ hop_cnt = ARRAY_SIZE(data.details.ntc_256.dr_rtn_path);
+ }
+ data.details.ntc_256.dr_trunc_hop |= hop_cnt;
+ memcpy(data.details.ntc_256.dr_rtn_path, return_path,
+ hop_cnt);
+ }
+
+ send_trap(ibp, &data, sizeof(data));
+}
+
+/*
+ * Send a Port Capability Mask Changed trap (ch. 14.3.11).
+ */
+void hfi1_cap_mask_chg(struct hfi1_ibport *ibp)
+{
+ struct ib_mad_notice_attr data;
+
+ data.generic_type = IB_NOTICE_TYPE_INFO;
+ data.prod_type_msb = 0;
+ data.prod_type_lsb = IB_NOTICE_PROD_CA;
+ data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG;
+ data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
+ data.toggle_count = 0;
+ memset(&data.details, 0, sizeof(data.details));
+ data.details.ntc_144.lid = data.issuer_lid;
+ data.details.ntc_144.new_cap_mask = cpu_to_be32(ibp->port_cap_flags);
+
+ send_trap(ibp, &data, sizeof(data));
+}
+
+/*
+ * Send a System Image GUID Changed trap (ch. 14.3.12).
+ */
+void hfi1_sys_guid_chg(struct hfi1_ibport *ibp)
+{
+ struct ib_mad_notice_attr data;
+
+ data.generic_type = IB_NOTICE_TYPE_INFO;
+ data.prod_type_msb = 0;
+ data.prod_type_lsb = IB_NOTICE_PROD_CA;
+ data.trap_num = IB_NOTICE_TRAP_SYS_GUID_CHG;
+ data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
+ data.toggle_count = 0;
+ memset(&data.details, 0, sizeof(data.details));
+ data.details.ntc_145.lid = data.issuer_lid;
+ data.details.ntc_145.new_sys_guid = ib_hfi1_sys_image_guid;
+
+ send_trap(ibp, &data, sizeof(data));
+}
+
+/*
+ * Send a Node Description Changed trap (ch. 14.3.13).
+ */
+void hfi1_node_desc_chg(struct hfi1_ibport *ibp)
+{
+ struct ib_mad_notice_attr data;
+
+ data.generic_type = IB_NOTICE_TYPE_INFO;
+ data.prod_type_msb = 0;
+ data.prod_type_lsb = IB_NOTICE_PROD_CA;
+ data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG;
+ data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
+ data.toggle_count = 0;
+ memset(&data.details, 0, sizeof(data.details));
+ data.details.ntc_144.lid = data.issuer_lid;
+ data.details.ntc_144.local_changes = 1;
+ data.details.ntc_144.change_flags = IB_NOTICE_TRAP_NODE_DESC_CHG;
+
+ send_trap(ibp, &data, sizeof(data));
+}
+
+static int __subn_get_opa_nodedesc(struct opa_smp *smp, u32 am,
+ u8 *data, struct ib_device *ibdev,
+ u8 port, u32 *resp_len)
+{
+ struct opa_node_description *nd;
+
+ if (am) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ nd = (struct opa_node_description *)data;
+
+ memcpy(nd->data, ibdev->node_desc, sizeof(nd->data));
+
+ if (resp_len)
+ *resp_len += sizeof(*nd);
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_get_opa_nodeinfo(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct opa_node_info *ni;
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ unsigned pidx = port - 1; /* IB number port from 1, hw from 0 */
+
+ ni = (struct opa_node_info *)data;
+
+ /* GUID 0 is illegal */
+ if (am || pidx >= dd->num_pports || dd->pport[pidx].guid == 0) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ ni->port_guid = dd->pport[pidx].guid;
+ ni->base_version = OPA_MGMT_BASE_VERSION;
+ ni->class_version = OPA_SMI_CLASS_VERSION;
+ ni->node_type = 1; /* channel adapter */
+ ni->num_ports = ibdev->phys_port_cnt;
+ /* This is already in network order */
+ ni->system_image_guid = ib_hfi1_sys_image_guid;
+ ni->node_guid = dd->pport->guid; /* Use first-port GUID as node */
+ ni->partition_cap = cpu_to_be16(hfi1_get_npkeys(dd));
+ ni->device_id = cpu_to_be16(dd->pcidev->device);
+ ni->revision = cpu_to_be32(dd->minrev);
+ ni->local_port_num = port;
+ ni->vendor_id[0] = dd->oui1;
+ ni->vendor_id[1] = dd->oui2;
+ ni->vendor_id[2] = dd->oui3;
+
+ if (resp_len)
+ *resp_len += sizeof(*ni);
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int subn_get_nodeinfo(struct ib_smp *smp, struct ib_device *ibdev,
+ u8 port)
+{
+ struct ib_node_info *nip = (struct ib_node_info *)&smp->data;
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ unsigned pidx = port - 1; /* IB number port from 1, hw from 0 */
+
+ /* GUID 0 is illegal */
+ if (smp->attr_mod || pidx >= dd->num_pports ||
+ dd->pport[pidx].guid == 0)
+ smp->status |= IB_SMP_INVALID_FIELD;
+ else
+ nip->port_guid = dd->pport[pidx].guid;
+
+ nip->base_version = OPA_MGMT_BASE_VERSION;
+ nip->class_version = OPA_SMI_CLASS_VERSION;
+ nip->node_type = 1; /* channel adapter */
+ nip->num_ports = ibdev->phys_port_cnt;
+ /* This is already in network order */
+ nip->sys_guid = ib_hfi1_sys_image_guid;
+ nip->node_guid = dd->pport->guid; /* Use first-port GUID as node */
+ nip->partition_cap = cpu_to_be16(hfi1_get_npkeys(dd));
+ nip->device_id = cpu_to_be16(dd->pcidev->device);
+ nip->revision = cpu_to_be32(dd->minrev);
+ nip->local_port_num = port;
+ nip->vendor_id[0] = dd->oui1;
+ nip->vendor_id[1] = dd->oui2;
+ nip->vendor_id[2] = dd->oui3;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static void set_link_width_enabled(struct hfi1_pportdata *ppd, u32 w)
+{
+ (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_ENB, w);
+}
+
+static void set_link_width_downgrade_enabled(struct hfi1_pportdata *ppd, u32 w)
+{
+ (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_DG_ENB, w);
+}
+
+static void set_link_speed_enabled(struct hfi1_pportdata *ppd, u32 s)
+{
+ (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_SPD_ENB, s);
+}
+
+static int check_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
+ int mad_flags, __be64 mkey, __be32 dr_slid,
+ u8 return_path[], u8 hop_cnt)
+{
+ int valid_mkey = 0;
+ int ret = 0;
+
+ /* Is the mkey in the process of expiring? */
+ if (ibp->mkey_lease_timeout &&
+ time_after_eq(jiffies, ibp->mkey_lease_timeout)) {
+ /* Clear timeout and mkey protection field. */
+ ibp->mkey_lease_timeout = 0;
+ ibp->mkeyprot = 0;
+ }
+
+ if ((mad_flags & IB_MAD_IGNORE_MKEY) || ibp->mkey == 0 ||
+ ibp->mkey == mkey)
+ valid_mkey = 1;
+
+ /* Unset lease timeout on any valid Get/Set/TrapRepress */
+ if (valid_mkey && ibp->mkey_lease_timeout &&
+ (mad->method == IB_MGMT_METHOD_GET ||
+ mad->method == IB_MGMT_METHOD_SET ||
+ mad->method == IB_MGMT_METHOD_TRAP_REPRESS))
+ ibp->mkey_lease_timeout = 0;
+
+ if (!valid_mkey) {
+ switch (mad->method) {
+ case IB_MGMT_METHOD_GET:
+ /* Bad mkey not a violation below level 2 */
+ if (ibp->mkeyprot < 2)
+ break;
+ case IB_MGMT_METHOD_SET:
+ case IB_MGMT_METHOD_TRAP_REPRESS:
+ if (ibp->mkey_violations != 0xFFFF)
+ ++ibp->mkey_violations;
+ if (!ibp->mkey_lease_timeout && ibp->mkey_lease_period)
+ ibp->mkey_lease_timeout = jiffies +
+ ibp->mkey_lease_period * HZ;
+ /* Generate a trap notice. */
+ bad_mkey(ibp, mad, mkey, dr_slid, return_path,
+ hop_cnt);
+ ret = 1;
+ }
+ }
+
+ return ret;
+}
+
+/*
+ * The SMA caches reads from LCB registers in case the LCB is unavailable.
+ * (The LCB is unavailable in certain link states, for example.)
+ */
+struct lcb_datum {
+ u32 off;
+ u64 val;
+};
+
+static struct lcb_datum lcb_cache[] = {
+ { DC_LCB_STS_ROUND_TRIP_LTP_CNT, 0 },
+};
+
+static int write_lcb_cache(u32 off, u64 val)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) {
+ if (lcb_cache[i].off == off) {
+ lcb_cache[i].val = val;
+ return 0;
+ }
+ }
+
+ pr_warn("%s bad offset 0x%x\n", __func__, off);
+ return -1;
+}
+
+static int read_lcb_cache(u32 off, u64 *val)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) {
+ if (lcb_cache[i].off == off) {
+ *val = lcb_cache[i].val;
+ return 0;
+ }
+ }
+
+ pr_warn("%s bad offset 0x%x\n", __func__, off);
+ return -1;
+}
+
+void read_ltp_rtt(struct hfi1_devdata *dd)
+{
+ u64 reg;
+
+ if (read_lcb_csr(dd, DC_LCB_STS_ROUND_TRIP_LTP_CNT, &reg))
+ dd_dev_err(dd, "%s: unable to read LTP RTT\n", __func__);
+ else
+ write_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, reg);
+}
+
+static u8 __opa_porttype(struct hfi1_pportdata *ppd)
+{
+ if (qsfp_mod_present(ppd)) {
+ if (ppd->qsfp_info.cache_valid)
+ return OPA_PORT_TYPE_STANDARD;
+ return OPA_PORT_TYPE_DISCONNECTED;
+ }
+ return OPA_PORT_TYPE_UNKNOWN;
+}
+
+static int __subn_get_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ int i;
+ struct hfi1_devdata *dd;
+ struct hfi1_pportdata *ppd;
+ struct hfi1_ibport *ibp;
+ struct opa_port_info *pi = (struct opa_port_info *)data;
+ u8 mtu;
+ u8 credit_rate;
+ int ret;
+ u32 state;
+ u32 port_num = OPA_AM_PORTNUM(am);
+ u32 num_ports = OPA_AM_NPORT(am);
+ u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
+ u32 buffer_units;
+ u64 tmp = 0;
+
+ if (num_ports != 1) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+ if (port_num == 0)
+ port_num = port;
+ else {
+ if (port_num > ibdev->phys_port_cnt) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+ if (port_num != port) {
+ ibp = to_iport(ibdev, port_num);
+ ret = check_mkey(ibp, (struct ib_mad_hdr *)smp,
+ 0, smp->mkey,
+ smp->route.dr.dr_slid,
+ smp->route.dr.return_path,
+ smp->hop_cnt);
+ if (ret)
+ return IB_MAD_RESULT_FAILURE;
+ }
+ }
+
+ dd = dd_from_ibdev(ibdev);
+ /* IB numbers ports from 1, hw from 0 */
+ ppd = dd->pport + (port_num - 1);
+ ibp = &ppd->ibport_data;
+
+ pi->lid = cpu_to_be32(ppd->lid);
+
+ /* Only return the mkey if the protection field allows it. */
+ if (!(smp->method == IB_MGMT_METHOD_GET &&
+ ibp->mkey != smp->mkey &&
+ ibp->mkeyprot == 1))
+ pi->mkey = ibp->mkey;
+
+ pi->subnet_prefix = ibp->gid_prefix;
+ pi->sm_lid = cpu_to_be32(ibp->sm_lid);
+ pi->ib_cap_mask = cpu_to_be32(ibp->port_cap_flags);
+ pi->mkey_lease_period = cpu_to_be16(ibp->mkey_lease_period);
+ pi->sm_trap_qp = cpu_to_be32(ppd->sm_trap_qp);
+ pi->sa_qp = cpu_to_be32(ppd->sa_qp);
+
+ pi->link_width.enabled = cpu_to_be16(ppd->link_width_enabled);
+ pi->link_width.supported = cpu_to_be16(ppd->link_width_supported);
+ pi->link_width.active = cpu_to_be16(ppd->link_width_active);
+
+ pi->link_width_downgrade.supported =
+ cpu_to_be16(ppd->link_width_downgrade_supported);
+ pi->link_width_downgrade.enabled =
+ cpu_to_be16(ppd->link_width_downgrade_enabled);
+ pi->link_width_downgrade.tx_active =
+ cpu_to_be16(ppd->link_width_downgrade_tx_active);
+ pi->link_width_downgrade.rx_active =
+ cpu_to_be16(ppd->link_width_downgrade_rx_active);
+
+ pi->link_speed.supported = cpu_to_be16(ppd->link_speed_supported);
+ pi->link_speed.active = cpu_to_be16(ppd->link_speed_active);
+ pi->link_speed.enabled = cpu_to_be16(ppd->link_speed_enabled);
+
+ state = driver_lstate(ppd);
+
+ if (start_of_sm_config && (state == IB_PORT_INIT))
+ ppd->is_sm_config_started = 1;
+
+ pi->port_phys_conf = __opa_porttype(ppd) & 0xf;
+
+#if PI_LED_ENABLE_SUP
+ pi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4;
+ pi->port_states.ledenable_offlinereason |=
+ ppd->is_sm_config_started << 5;
+ pi->port_states.ledenable_offlinereason |=
+ ppd->offline_disabled_reason & OPA_PI_MASK_OFFLINE_REASON;
+#else
+ pi->port_states.offline_reason = ppd->neighbor_normal << 4;
+ pi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
+ pi->port_states.offline_reason |= ppd->offline_disabled_reason &
+ OPA_PI_MASK_OFFLINE_REASON;
+#endif /* PI_LED_ENABLE_SUP */
+
+ pi->port_states.portphysstate_portstate =
+ (hfi1_ibphys_portstate(ppd) << 4) | state;
+
+ pi->mkeyprotect_lmc = (ibp->mkeyprot << 6) | ppd->lmc;
+
+ memset(pi->neigh_mtu.pvlx_to_mtu, 0, sizeof(pi->neigh_mtu.pvlx_to_mtu));
+ for (i = 0; i < hfi1_num_vls(ppd->vls_supported); i++) {
+ mtu = mtu_to_enum(dd->vld[i].mtu, HFI1_DEFAULT_ACTIVE_MTU);
+ if ((i % 2) == 0)
+ pi->neigh_mtu.pvlx_to_mtu[i/2] |= (mtu << 4);
+ else
+ pi->neigh_mtu.pvlx_to_mtu[i/2] |= mtu;
+ }
+ /* don't forget VL 15 */
+ mtu = mtu_to_enum(dd->vld[15].mtu, 2048);
+ pi->neigh_mtu.pvlx_to_mtu[15/2] |= mtu;
+ pi->smsl = ibp->sm_sl & OPA_PI_MASK_SMSL;
+ pi->operational_vls =
+ hfi1_num_vls(hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS));
+ pi->partenforce_filterraw |=
+ (ppd->linkinit_reason & OPA_PI_MASK_LINKINIT_REASON);
+ if (ppd->part_enforce & HFI1_PART_ENFORCE_IN)
+ pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_IN;
+ if (ppd->part_enforce & HFI1_PART_ENFORCE_OUT)
+ pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_OUT;
+ pi->mkey_violations = cpu_to_be16(ibp->mkey_violations);
+ /* P_KeyViolations are counted by hardware. */
+ pi->pkey_violations = cpu_to_be16(ibp->pkey_violations);
+ pi->qkey_violations = cpu_to_be16(ibp->qkey_violations);
+
+ pi->vl.cap = hfi1_num_vls(ppd->vls_supported);
+ pi->vl.high_limit = cpu_to_be16(ibp->vl_high_limit);
+ pi->vl.arb_high_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_CAP);
+ pi->vl.arb_low_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_LOW_CAP);
+
+ pi->clientrereg_subnettimeout = ibp->subnet_timeout;
+
+ pi->port_link_mode = cpu_to_be16(OPA_PORT_LINK_MODE_OPA << 10 |
+ OPA_PORT_LINK_MODE_OPA << 5 |
+ OPA_PORT_LINK_MODE_OPA);
+
+ pi->port_ltp_crc_mode = cpu_to_be16(ppd->port_ltp_crc_mode);
+
+ pi->port_mode = cpu_to_be16(
+ ppd->is_active_optimize_enabled ?
+ OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE : 0);
+
+ pi->port_packet_format.supported =
+ cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B);
+ pi->port_packet_format.enabled =
+ cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B);
+
+ /* flit_control.interleave is (OPA V1, version .76):
+ * bits use
+ * ---- ---
+ * 2 res
+ * 2 DistanceSupported
+ * 2 DistanceEnabled
+ * 5 MaxNextLevelTxEnabled
+ * 5 MaxNestLevelRxSupported
+ *
+ * HFI supports only "distance mode 1" (see OPA V1, version .76,
+ * section 9.6.2), so set DistanceSupported, DistanceEnabled
+ * to 0x1.
+ */
+ pi->flit_control.interleave = cpu_to_be16(0x1400);
+
+ pi->link_down_reason = ppd->local_link_down_reason.sma;
+ pi->neigh_link_down_reason = ppd->neigh_link_down_reason.sma;
+ pi->port_error_action = cpu_to_be32(ppd->port_error_action);
+ pi->mtucap = mtu_to_enum(hfi1_max_mtu, IB_MTU_4096);
+
+ /* 32.768 usec. response time (guessing) */
+ pi->resptimevalue = 3;
+
+ pi->local_port_num = port;
+
+ /* buffer info for FM */
+ pi->overall_buffer_space = cpu_to_be16(dd->link_credits);
+
+ pi->neigh_node_guid = ppd->neighbor_guid;
+ pi->port_neigh_mode =
+ (ppd->neighbor_type & OPA_PI_MASK_NEIGH_NODE_TYPE) |
+ (ppd->mgmt_allowed ? OPA_PI_MASK_NEIGH_MGMT_ALLOWED : 0) |
+ (ppd->neighbor_fm_security ?
+ OPA_PI_MASK_NEIGH_FW_AUTH_BYPASS : 0);
+
+ /* HFIs shall always return VL15 credits to their
+ * neighbor in a timely manner, without any credit return pacing.
+ */
+ credit_rate = 0;
+ buffer_units = (dd->vau) & OPA_PI_MASK_BUF_UNIT_BUF_ALLOC;
+ buffer_units |= (dd->vcu << 3) & OPA_PI_MASK_BUF_UNIT_CREDIT_ACK;
+ buffer_units |= (credit_rate << 6) &
+ OPA_PI_MASK_BUF_UNIT_VL15_CREDIT_RATE;
+ buffer_units |= (dd->vl15_init << 11) & OPA_PI_MASK_BUF_UNIT_VL15_INIT;
+ pi->buffer_units = cpu_to_be32(buffer_units);
+
+ pi->opa_cap_mask = cpu_to_be16(OPA_CAP_MASK3_IsSharedSpaceSupported);
+
+ /* HFI supports a replay buffer 128 LTPs in size */
+ pi->replay_depth.buffer = 0x80;
+ /* read the cached value of DC_LCB_STS_ROUND_TRIP_LTP_CNT */
+ read_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, &tmp);
+
+ /* this counter is 16 bits wide, but the replay_depth.wire
+ * variable is only 8 bits */
+ if (tmp > 0xff)
+ tmp = 0xff;
+ pi->replay_depth.wire = tmp;
+
+ if (resp_len)
+ *resp_len += sizeof(struct opa_port_info);
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+/**
+ * get_pkeys - return the PKEY table
+ * @dd: the hfi1_ib device
+ * @port: the IB port number
+ * @pkeys: the pkey table is placed here
+ */
+static int get_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys)
+{
+ struct hfi1_pportdata *ppd = dd->pport + port - 1;
+
+ memcpy(pkeys, ppd->pkeys, sizeof(ppd->pkeys));
+
+ return 0;
+}
+
+static int __subn_get_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ u32 n_blocks_req = OPA_AM_NBLK(am);
+ u32 am_port = (am & 0x00ff0000) >> 16;
+ u32 start_block = am & 0x7ff;
+ __be16 *p;
+ u16 *q;
+ int i;
+ u16 n_blocks_avail;
+ unsigned npkeys = hfi1_get_npkeys(dd);
+ size_t size;
+
+ if (am_port == 0)
+ am_port = port;
+
+ if (am_port != port || n_blocks_req == 0) {
+ pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n",
+ am_port, start_block, n_blocks_req);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ n_blocks_avail = (u16) (npkeys/OPA_PARTITION_TABLE_BLK_SIZE) + 1;
+
+ size = (n_blocks_req * OPA_PARTITION_TABLE_BLK_SIZE) * sizeof(u16);
+
+ if (start_block + n_blocks_req > n_blocks_avail ||
+ n_blocks_req > OPA_NUM_PKEY_BLOCKS_PER_SMP) {
+ pr_warn("OPA Get PKey AM Invalid : s 0x%x; req 0x%x; "
+ "avail 0x%x; blk/smp 0x%lx\n",
+ start_block, n_blocks_req, n_blocks_avail,
+ OPA_NUM_PKEY_BLOCKS_PER_SMP);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ p = (__be16 *) data;
+ q = (u16 *)data;
+ /* get the real pkeys if we are requesting the first block */
+ if (start_block == 0) {
+ get_pkeys(dd, port, q);
+ for (i = 0; i < npkeys; i++)
+ p[i] = cpu_to_be16(q[i]);
+ if (resp_len)
+ *resp_len += size;
+ } else
+ smp->status |= IB_SMP_INVALID_FIELD;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int set_port_states(struct hfi1_pportdata *ppd, struct opa_smp *smp,
+ u32 state, u32 lstate, int suppress_idle_sma)
+{
+ struct hfi1_devdata *dd = ppd->dd;
+ int ret;
+
+ if (lstate && !(state == IB_PORT_DOWN || state == IB_PORT_NOP)) {
+ pr_warn("SubnSet(OPA_PortInfo) port state invalid; state 0x%x link state 0x%x\n",
+ state, lstate);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ }
+
+ /*
+ * 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 = HLS_DN_DOWNDEF;
+ else if (lstate == 2) {
+ lstate = HLS_DN_POLL;
+ set_link_down_reason(ppd,
+ OPA_LINKDOWN_REASON_FM_BOUNCE, 0,
+ OPA_LINKDOWN_REASON_FM_BOUNCE);
+ } else if (lstate == 3)
+ lstate = HLS_DN_DISABLE;
+ else {
+ pr_warn("SubnSet(OPA_PortInfo) invalid Physical state 0x%x\n",
+ lstate);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ break;
+ }
+
+ set_link_state(ppd, lstate);
+ if (lstate == HLS_DN_DISABLE && (ppd->offline_disabled_reason >
+ OPA_LINKDOWN_REASON_SMA_DISABLED ||
+ ppd->offline_disabled_reason == OPA_LINKDOWN_REASON_NONE))
+ ppd->offline_disabled_reason =
+ OPA_LINKDOWN_REASON_SMA_DISABLED;
+ /*
+ * Don't send a reply if the response would be sent
+ * through the disabled port.
+ */
+ if (lstate == HLS_DN_DISABLE && smp->hop_cnt)
+ return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
+ break;
+ case IB_PORT_ARMED:
+ ret = set_link_state(ppd, HLS_UP_ARMED);
+ if ((ret == 0) && (suppress_idle_sma == 0))
+ send_idle_sma(dd, SMA_IDLE_ARM);
+ break;
+ case IB_PORT_ACTIVE:
+ if (ppd->neighbor_normal) {
+ ret = set_link_state(ppd, HLS_UP_ACTIVE);
+ if (ret == 0)
+ send_idle_sma(dd, SMA_IDLE_ACTIVE);
+ } else {
+ pr_warn("SubnSet(OPA_PortInfo) Cannot move to Active with NeighborNormal 0\n");
+ smp->status |= IB_SMP_INVALID_FIELD;
+ }
+ break;
+ default:
+ pr_warn("SubnSet(OPA_PortInfo) invalid state 0x%x\n", state);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ }
+
+ return 0;
+}
+
+/**
+ * subn_set_opa_portinfo - set port information
+ * @smp: the incoming SM packet
+ * @ibdev: the infiniband device
+ * @port: the port on the device
+ *
+ */
+static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct opa_port_info *pi = (struct opa_port_info *)data;
+ struct ib_event event;
+ struct hfi1_devdata *dd;
+ struct hfi1_pportdata *ppd;
+ struct hfi1_ibport *ibp;
+ u8 clientrereg;
+ unsigned long flags;
+ u32 smlid, opa_lid; /* tmp vars to hold LID values */
+ u16 lid;
+ u8 ls_old, ls_new, ps_new;
+ u8 vls;
+ u8 msl;
+ u8 crc_enabled;
+ u16 lse, lwe, mtu;
+ u32 port_num = OPA_AM_PORTNUM(am);
+ u32 num_ports = OPA_AM_NPORT(am);
+ u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
+ int ret, i, invalid = 0, call_set_mtu = 0;
+ int call_link_downgrade_policy = 0;
+
+ if (num_ports != 1) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ /* PortInfo is only valid on receiving port
+ * or 0 for wildcard
+ */
+ if (port_num == 0)
+ port_num = port;
+ else {
+ if (port_num != port)
+ goto get_only;
+ }
+
+ opa_lid = be32_to_cpu(pi->lid);
+ if (opa_lid & 0xFFFF0000) {
+ pr_warn("OPA_PortInfo lid out of range: %X\n", opa_lid);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ goto get_only;
+ }
+
+ lid = (u16)(opa_lid & 0x0000FFFF);
+
+ smlid = be32_to_cpu(pi->sm_lid);
+ if (smlid & 0xFFFF0000) {
+ pr_warn("OPA_PortInfo SM lid out of range: %X\n", smlid);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ goto get_only;
+ }
+ smlid &= 0x0000FFFF;
+
+ clientrereg = (pi->clientrereg_subnettimeout &
+ OPA_PI_MASK_CLIENT_REREGISTER);
+
+ dd = dd_from_ibdev(ibdev);
+ /* IB numbers ports from 1, hw from 0 */
+ ppd = dd->pport + (port_num - 1);
+ ibp = &ppd->ibport_data;
+ event.device = ibdev;
+ event.element.port_num = port;
+
+ ls_old = driver_lstate(ppd);
+
+ ibp->mkey = pi->mkey;
+ ibp->gid_prefix = pi->subnet_prefix;
+ ibp->mkey_lease_period = be16_to_cpu(pi->mkey_lease_period);
+
+ /* Must be a valid unicast LID address. */
+ if ((lid == 0 && ls_old > IB_PORT_INIT) ||
+ lid >= HFI1_MULTICAST_LID_BASE) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ pr_warn("SubnSet(OPA_PortInfo) lid invalid 0x%x\n",
+ lid);
+ } else if (ppd->lid != lid ||
+ ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC)) {
+ if (ppd->lid != lid)
+ hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LID_CHANGE_BIT);
+ if (ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC))
+ hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LMC_CHANGE_BIT);
+ hfi1_set_lid(ppd, lid, pi->mkeyprotect_lmc & OPA_PI_MASK_LMC);
+ event.event = IB_EVENT_LID_CHANGE;
+ ib_dispatch_event(&event);
+ }
+
+ msl = pi->smsl & OPA_PI_MASK_SMSL;
+ if (pi->partenforce_filterraw & OPA_PI_MASK_LINKINIT_REASON)
+ ppd->linkinit_reason =
+ (pi->partenforce_filterraw &
+ OPA_PI_MASK_LINKINIT_REASON);
+ if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_IN)
+ ppd->part_enforce |= HFI1_PART_ENFORCE_IN;
+ if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_OUT)
+ ppd->part_enforce |= HFI1_PART_ENFORCE_OUT;
+ /* Must be a valid unicast LID address. */
+ if ((smlid == 0 && ls_old > IB_PORT_INIT) ||
+ smlid >= HFI1_MULTICAST_LID_BASE) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ pr_warn("SubnSet(OPA_PortInfo) smlid invalid 0x%x\n", smlid);
+ } else if (smlid != ibp->sm_lid || msl != ibp->sm_sl) {
+ pr_warn("SubnSet(OPA_PortInfo) smlid 0x%x\n", smlid);
+ spin_lock_irqsave(&ibp->lock, flags);
+ if (ibp->sm_ah) {
+ if (smlid != ibp->sm_lid)
+ ibp->sm_ah->attr.dlid = smlid;
+ if (msl != ibp->sm_sl)
+ ibp->sm_ah->attr.sl = msl;
+ }
+ spin_unlock_irqrestore(&ibp->lock, flags);
+ if (smlid != ibp->sm_lid)
+ ibp->sm_lid = smlid;
+ if (msl != ibp->sm_sl)
+ ibp->sm_sl = msl;
+ event.event = IB_EVENT_SM_CHANGE;
+ ib_dispatch_event(&event);
+ }
+
+ if (pi->link_down_reason == 0) {
+ ppd->local_link_down_reason.sma = 0;
+ ppd->local_link_down_reason.latest = 0;
+ }
+
+ if (pi->neigh_link_down_reason == 0) {
+ ppd->neigh_link_down_reason.sma = 0;
+ ppd->neigh_link_down_reason.latest = 0;
+ }
+
+ ppd->sm_trap_qp = be32_to_cpu(pi->sm_trap_qp);
+ ppd->sa_qp = be32_to_cpu(pi->sa_qp);
+
+ ppd->port_error_action = be32_to_cpu(pi->port_error_action);
+ lwe = be16_to_cpu(pi->link_width.enabled);
+ if (lwe) {
+ if (lwe == OPA_LINK_WIDTH_RESET
+ || lwe == OPA_LINK_WIDTH_RESET_OLD)
+ set_link_width_enabled(ppd, ppd->link_width_supported);
+ else if ((lwe & ~ppd->link_width_supported) == 0)
+ set_link_width_enabled(ppd, lwe);
+ else
+ smp->status |= IB_SMP_INVALID_FIELD;
+ }
+ lwe = be16_to_cpu(pi->link_width_downgrade.enabled);
+ /* LWD.E is always applied - 0 means "disabled" */
+ if (lwe == OPA_LINK_WIDTH_RESET
+ || lwe == OPA_LINK_WIDTH_RESET_OLD) {
+ set_link_width_downgrade_enabled(ppd,
+ ppd->link_width_downgrade_supported);
+ } else if ((lwe & ~ppd->link_width_downgrade_supported) == 0) {
+ /* only set and apply if something changed */
+ if (lwe != ppd->link_width_downgrade_enabled) {
+ set_link_width_downgrade_enabled(ppd, lwe);
+ call_link_downgrade_policy = 1;
+ }
+ } else
+ smp->status |= IB_SMP_INVALID_FIELD;
+
+ lse = be16_to_cpu(pi->link_speed.enabled);
+ if (lse) {
+ if (lse & be16_to_cpu(pi->link_speed.supported))
+ set_link_speed_enabled(ppd, lse);
+ else
+ smp->status |= IB_SMP_INVALID_FIELD;
+ }
+
+ ibp->mkeyprot = (pi->mkeyprotect_lmc & OPA_PI_MASK_MKEY_PROT_BIT) >> 6;
+ ibp->vl_high_limit = be16_to_cpu(pi->vl.high_limit) & 0xFF;
+ (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_LIMIT,
+ ibp->vl_high_limit);
+
+ for (i = 0; i < hfi1_num_vls(ppd->vls_supported); i++) {
+ if ((i % 2) == 0)
+ mtu = enum_to_mtu((pi->neigh_mtu.pvlx_to_mtu[i/2] >> 4)
+ & 0xF);
+ else
+ mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[i/2] & 0xF);
+ if (mtu == 0xffff) {
+ pr_warn("SubnSet(OPA_PortInfo) mtu invalid %d (0x%x)\n",
+ mtu,
+ (pi->neigh_mtu.pvlx_to_mtu[0] >> 4) & 0xF);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ mtu = hfi1_max_mtu; /* use a valid MTU */
+ }
+ if (dd->vld[i].mtu != mtu) {
+ dd_dev_info(dd,
+ "MTU change on vl %d from %d to %d\n",
+ i, dd->vld[i].mtu, mtu);
+ dd->vld[i].mtu = mtu;
+ call_set_mtu++;
+ }
+ }
+ /* As per OPAV1 spec: VL15 must support and be configured
+ * for operation with a 2048 or larger MTU.
+ */
+ mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[15/2] & 0xF);
+ if (mtu < 2048 || mtu == 0xffff)
+ mtu = 2048;
+ if (dd->vld[15].mtu != mtu) {
+ dd_dev_info(dd,
+ "MTU change on vl 15 from %d to %d\n",
+ dd->vld[15].mtu, mtu);
+ dd->vld[15].mtu = mtu;
+ call_set_mtu++;
+ }
+ if (call_set_mtu)
+ set_mtu(ppd);
+
+ /* Set operational VLs */
+ vls = pi->operational_vls & OPA_PI_MASK_OPERATIONAL_VL;
+ if (vls) {
+ int vl_enum = hfi1_vls_to_ib_enum(vls);
+
+ if (vls > hfi1_num_vls(ppd->vls_supported) || vl_enum < 0) {
+ pr_warn("SubnSet(OPA_PortInfo) VL's supported invalid %d\n",
+ pi->operational_vls);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ } else
+ (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS,
+ vl_enum);
+ }
+
+ if (pi->mkey_violations == 0)
+ ibp->mkey_violations = 0;
+
+ if (pi->pkey_violations == 0)
+ ibp->pkey_violations = 0;
+
+ if (pi->qkey_violations == 0)
+ ibp->qkey_violations = 0;
+
+ ibp->subnet_timeout =
+ pi->clientrereg_subnettimeout & OPA_PI_MASK_SUBNET_TIMEOUT;
+
+ crc_enabled = be16_to_cpu(pi->port_ltp_crc_mode);
+ crc_enabled >>= 4;
+ crc_enabled &= 0xf;
+
+ if (crc_enabled != 0)
+ ppd->port_crc_mode_enabled = port_ltp_to_cap(crc_enabled);
+
+ ppd->is_active_optimize_enabled =
+ !!(be16_to_cpu(pi->port_mode)
+ & OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE);
+
+ ls_new = pi->port_states.portphysstate_portstate &
+ OPA_PI_MASK_PORT_STATE;
+ ps_new = (pi->port_states.portphysstate_portstate &
+ OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4;
+
+ if (ls_old == IB_PORT_INIT) {
+ if (start_of_sm_config) {
+ if (ls_new == ls_old || (ls_new == IB_PORT_ARMED))
+ ppd->is_sm_config_started = 1;
+ } else if (ls_new == IB_PORT_ARMED) {
+ if (ppd->is_sm_config_started == 0)
+ invalid = 1;
+ }
+ }
+
+ /* Handle CLIENT_REREGISTER event b/c SM asked us for it */
+ if (clientrereg) {
+ 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.
+ */
+
+ ret = set_port_states(ppd, smp, ls_new, ps_new, invalid);
+ if (ret)
+ return ret;
+
+ ret = __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len);
+
+ /* restore re-reg bit per o14-12.2.1 */
+ pi->clientrereg_subnettimeout |= clientrereg;
+
+ /*
+ * Apply the new link downgrade policy. This may result in a link
+ * bounce. Do this after everything else so things are settled.
+ * Possible problem: if setting the port state above fails, then
+ * the policy change is not applied.
+ */
+ if (call_link_downgrade_policy)
+ apply_link_downgrade_policy(ppd, 0);
+
+ return ret;
+
+get_only:
+ return __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len);
+}
+
+/**
+ * set_pkeys - set the PKEY table for ctxt 0
+ * @dd: the hfi1_ib device
+ * @port: the IB port number
+ * @pkeys: the PKEY table
+ */
+static int set_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys)
+{
+ struct hfi1_pportdata *ppd;
+ int i;
+ int changed = 0;
+ int update_includes_mgmt_partition = 0;
+
+ /*
+ * IB port one/two always maps to context zero/one,
+ * always a kernel context, no locking needed
+ * If we get here with ppd setup, no need to check
+ * that rcd is valid.
+ */
+ ppd = dd->pport + (port - 1);
+ /*
+ * If the update does not include the management pkey, don't do it.
+ */
+ for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) {
+ if (pkeys[i] == LIM_MGMT_P_KEY) {
+ update_includes_mgmt_partition = 1;
+ break;
+ }
+ }
+
+ if (!update_includes_mgmt_partition)
+ return 1;
+
+ for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) {
+ u16 key = pkeys[i];
+ u16 okey = ppd->pkeys[i];
+
+ if (key == okey)
+ continue;
+ /*
+ * The SM gives us the complete PKey table. We have
+ * to ensure that we put the PKeys in the matching
+ * slots.
+ */
+ ppd->pkeys[i] = key;
+ changed = 1;
+ }
+
+ if (changed) {
+ struct ib_event event;
+
+ (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_PKEYS, 0);
+
+ event.event = IB_EVENT_PKEY_CHANGE;
+ event.device = &dd->verbs_dev.ibdev;
+ event.element.port_num = port;
+ ib_dispatch_event(&event);
+ }
+ return 0;
+}
+
+static int __subn_set_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ u32 n_blocks_sent = OPA_AM_NBLK(am);
+ u32 am_port = (am & 0x00ff0000) >> 16;
+ u32 start_block = am & 0x7ff;
+ u16 *p = (u16 *) data;
+ __be16 *q = (__be16 *)data;
+ int i;
+ u16 n_blocks_avail;
+ unsigned npkeys = hfi1_get_npkeys(dd);
+
+ if (am_port == 0)
+ am_port = port;
+
+ if (am_port != port || n_blocks_sent == 0) {
+ pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n",
+ am_port, start_block, n_blocks_sent);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ n_blocks_avail = (u16)(npkeys/OPA_PARTITION_TABLE_BLK_SIZE) + 1;
+
+ if (start_block + n_blocks_sent > n_blocks_avail ||
+ n_blocks_sent > OPA_NUM_PKEY_BLOCKS_PER_SMP) {
+ pr_warn("OPA Set PKey AM Invalid : s 0x%x; req 0x%x; avail 0x%x; blk/smp 0x%lx\n",
+ start_block, n_blocks_sent, n_blocks_avail,
+ OPA_NUM_PKEY_BLOCKS_PER_SMP);
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ for (i = 0; i < n_blocks_sent * OPA_PARTITION_TABLE_BLK_SIZE; i++)
+ p[i] = be16_to_cpu(q[i]);
+
+ if (start_block == 0 && set_pkeys(dd, port, p) != 0) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ return __subn_get_opa_pkeytable(smp, am, data, ibdev, port, resp_len);
+}
+
+static int get_sc2vlt_tables(struct hfi1_devdata *dd, void *data)
+{
+ u64 *val = (u64 *)data;
+
+ *val++ = read_csr(dd, SEND_SC2VLT0);
+ *val++ = read_csr(dd, SEND_SC2VLT1);
+ *val++ = read_csr(dd, SEND_SC2VLT2);
+ *val++ = read_csr(dd, SEND_SC2VLT3);
+ return 0;
+}
+
+#define ILLEGAL_VL 12
+/*
+ * filter_sc2vlt changes mappings to VL15 to ILLEGAL_VL (except
+ * for SC15, which must map to VL15). If we don't remap things this
+ * way it is possible for VL15 counters to increment when we try to
+ * send on a SC which is mapped to an invalid VL.
+ */
+static void filter_sc2vlt(void *data)
+{
+ int i;
+ u8 *pd = (u8 *)data;
+
+ for (i = 0; i < OPA_MAX_SCS; i++) {
+ if (i == 15)
+ continue;
+ if ((pd[i] & 0x1f) == 0xf)
+ pd[i] = ILLEGAL_VL;
+ }
+}
+
+static int set_sc2vlt_tables(struct hfi1_devdata *dd, void *data)
+{
+ u64 *val = (u64 *)data;
+
+ filter_sc2vlt(data);
+
+ write_csr(dd, SEND_SC2VLT0, *val++);
+ write_csr(dd, SEND_SC2VLT1, *val++);
+ write_csr(dd, SEND_SC2VLT2, *val++);
+ write_csr(dd, SEND_SC2VLT3, *val++);
+ write_seqlock_irq(&dd->sc2vl_lock);
+ memcpy(dd->sc2vl, (u64 *)data, sizeof(dd->sc2vl));
+ write_sequnlock_irq(&dd->sc2vl_lock);
+ return 0;
+}
+
+static int __subn_get_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_ibport *ibp = to_iport(ibdev, port);
+ u8 *p = (u8 *)data;
+ size_t size = ARRAY_SIZE(ibp->sl_to_sc); /* == 32 */
+ unsigned i;
+
+ if (am) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++)
+ *p++ = ibp->sl_to_sc[i];
+
+ if (resp_len)
+ *resp_len += size;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_set_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_ibport *ibp = to_iport(ibdev, port);
+ u8 *p = (u8 *)data;
+ int i;
+
+ if (am) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++)
+ ibp->sl_to_sc[i] = *p++;
+
+ return __subn_get_opa_sl_to_sc(smp, am, data, ibdev, port, resp_len);
+}
+
+static int __subn_get_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_ibport *ibp = to_iport(ibdev, port);
+ u8 *p = (u8 *)data;
+ size_t size = ARRAY_SIZE(ibp->sc_to_sl); /* == 32 */
+ unsigned i;
+
+ if (am) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++)
+ *p++ = ibp->sc_to_sl[i];
+
+ if (resp_len)
+ *resp_len += size;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_set_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_ibport *ibp = to_iport(ibdev, port);
+ u8 *p = (u8 *)data;
+ int i;
+
+ if (am) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++)
+ ibp->sc_to_sl[i] = *p++;
+
+ return __subn_get_opa_sc_to_sl(smp, am, data, ibdev, port, resp_len);
+}
+
+static int __subn_get_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ u32 n_blocks = OPA_AM_NBLK(am);
+ u32 am_port = OPA_AM_PORTNUM(am);
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ void *vp = (void *) data;
+ size_t size = 4 * sizeof(u64);
+
+ if (am_port != port || port != 1 || n_blocks != 1) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ get_sc2vlt_tables(dd, vp);
+
+ if (resp_len)
+ *resp_len += size;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_set_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ u32 n_blocks = OPA_AM_NBLK(am);
+ u32 am_port = OPA_AM_PORTNUM(am);
+ int async_update = OPA_AM_ASYNC(am);
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ void *vp = (void *) data;
+ struct hfi1_pportdata *ppd;
+ int lstate;
+
+ if (am_port != port || port != 1 || n_blocks != 1 || async_update) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ /* IB numbers ports from 1, hw from 0 */
+ ppd = dd->pport + (port - 1);
+ lstate = driver_lstate(ppd);
+ /* it's known that async_update is 0 by this point, but include
+ * the explicit check for clarity */
+ if (!async_update &&
+ (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE)) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ set_sc2vlt_tables(dd, vp);
+
+ return __subn_get_opa_sc_to_vlt(smp, am, data, ibdev, port, resp_len);
+}
+
+static int __subn_get_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ u32 n_blocks = OPA_AM_NPORT(am);
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ struct hfi1_pportdata *ppd;
+ void *vp = (void *) data;
+ int size;
+
+ if (port != 1 || n_blocks != 1) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ ppd = dd->pport + (port - 1);
+
+ size = fm_get_table(ppd, FM_TBL_SC2VLNT, vp);
+
+ if (resp_len)
+ *resp_len += size;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_set_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ u32 n_blocks = OPA_AM_NPORT(am);
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ struct hfi1_pportdata *ppd;
+ void *vp = (void *) data;
+ int lstate;
+
+ if (port != 1 || n_blocks != 1) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ /* IB numbers ports from 1, hw from 0 */
+ ppd = dd->pport + (port - 1);
+ lstate = driver_lstate(ppd);
+ if (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ ppd = dd->pport + (port - 1);
+
+ fm_set_table(ppd, FM_TBL_SC2VLNT, vp);
+
+ return __subn_get_opa_sc_to_vlnt(smp, am, data, ibdev, port,
+ resp_len);
+}
+
+static int __subn_get_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ u32 nports = OPA_AM_NPORT(am);
+ u32 port_num = OPA_AM_PORTNUM(am);
+ u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
+ u32 lstate;
+ struct hfi1_ibport *ibp;
+ struct hfi1_pportdata *ppd;
+ struct opa_port_state_info *psi = (struct opa_port_state_info *) data;
+
+ if (port_num == 0)
+ port_num = port;
+
+ if (nports != 1 || port_num != port) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ ibp = to_iport(ibdev, port);
+ ppd = ppd_from_ibp(ibp);
+
+ lstate = driver_lstate(ppd);
+
+ if (start_of_sm_config && (lstate == IB_PORT_INIT))
+ ppd->is_sm_config_started = 1;
+
+#if PI_LED_ENABLE_SUP
+ psi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4;
+ psi->port_states.ledenable_offlinereason |=
+ ppd->is_sm_config_started << 5;
+ psi->port_states.ledenable_offlinereason |=
+ ppd->offline_disabled_reason & OPA_PI_MASK_OFFLINE_REASON;
+#else
+ psi->port_states.offline_reason = ppd->neighbor_normal << 4;
+ psi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
+ psi->port_states.offline_reason |= ppd->offline_disabled_reason &
+ OPA_PI_MASK_OFFLINE_REASON;
+#endif /* PI_LED_ENABLE_SUP */
+
+ psi->port_states.portphysstate_portstate =
+ (hfi1_ibphys_portstate(ppd) << 4) | (lstate & 0xf);
+ psi->link_width_downgrade_tx_active =
+ ppd->link_width_downgrade_tx_active;
+ psi->link_width_downgrade_rx_active =
+ ppd->link_width_downgrade_rx_active;
+ if (resp_len)
+ *resp_len += sizeof(struct opa_port_state_info);
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_set_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ u32 nports = OPA_AM_NPORT(am);
+ u32 port_num = OPA_AM_PORTNUM(am);
+ u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
+ u32 ls_old;
+ u8 ls_new, ps_new;
+ struct hfi1_ibport *ibp;
+ struct hfi1_pportdata *ppd;
+ struct opa_port_state_info *psi = (struct opa_port_state_info *) data;
+ int ret, invalid = 0;
+
+ if (port_num == 0)
+ port_num = port;
+
+ if (nports != 1 || port_num != port) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ ibp = to_iport(ibdev, port);
+ ppd = ppd_from_ibp(ibp);
+
+ ls_old = driver_lstate(ppd);
+
+ ls_new = port_states_to_logical_state(&psi->port_states);
+ ps_new = port_states_to_phys_state(&psi->port_states);
+
+ if (ls_old == IB_PORT_INIT) {
+ if (start_of_sm_config) {
+ if (ls_new == ls_old || (ls_new == IB_PORT_ARMED))
+ ppd->is_sm_config_started = 1;
+ } else if (ls_new == IB_PORT_ARMED) {
+ if (ppd->is_sm_config_started == 0)
+ invalid = 1;
+ }
+ }
+
+ ret = set_port_states(ppd, smp, ls_new, ps_new, invalid);
+ if (ret)
+ return ret;
+
+ if (invalid)
+ smp->status |= IB_SMP_INVALID_FIELD;
+
+ return __subn_get_opa_psi(smp, am, data, ibdev, port, resp_len);
+}
+
+static int __subn_get_opa_cable_info(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ u32 addr = OPA_AM_CI_ADDR(am);
+ u32 len = OPA_AM_CI_LEN(am);
+ int ret;
+
+#define __CI_PAGE_SIZE (1 << 7) /* 128 bytes */
+#define __CI_PAGE_MASK ~(__CI_PAGE_SIZE - 1)
+#define __CI_PAGE_NUM(a) ((a) & __CI_PAGE_MASK)
+
+ /* check that addr is within spec, and
+ * addr and (addr + len) are on the same "page" */
+ if (addr >= 4096 ||
+ (__CI_PAGE_NUM(addr) != __CI_PAGE_NUM(addr + len))) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ ret = get_cable_info(dd, port, addr, len, data);
+
+ if (ret == -ENODEV) {
+ smp->status |= IB_SMP_UNSUP_METH_ATTR;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ /* The address range for the CableInfo SMA query is wider than the
+ * memory available on the QSFP cable. We want to return a valid
+ * response, albeit zeroed out, for address ranges beyond available
+ * memory but that are within the CableInfo query spec
+ */
+ if (ret < 0 && ret != -ERANGE) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ if (resp_len)
+ *resp_len += len;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_get_opa_bct(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port, u32 *resp_len)
+{
+ u32 num_ports = OPA_AM_NPORT(am);
+ u32 port_num = OPA_AM_PORTNUM(am);
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ struct hfi1_pportdata *ppd;
+ struct buffer_control *p = (struct buffer_control *) data;
+ int size;
+
+ if (num_ports != 1 || port_num != port) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ ppd = dd->pport + (port_num - 1);
+ size = fm_get_table(ppd, FM_TBL_BUFFER_CONTROL, p);
+ trace_bct_get(dd, p);
+ if (resp_len)
+ *resp_len += size;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_set_opa_bct(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port, u32 *resp_len)
+{
+ u32 num_ports = OPA_AM_NPORT(am);
+ u32 port_num = OPA_AM_PORTNUM(am);
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ struct hfi1_pportdata *ppd;
+ struct buffer_control *p = (struct buffer_control *) data;
+
+ if (num_ports != 1 || port_num != port) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+ ppd = dd->pport + (port_num - 1);
+ trace_bct_set(dd, p);
+ if (fm_set_table(ppd, FM_TBL_BUFFER_CONTROL, p) < 0) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ return __subn_get_opa_bct(smp, am, data, ibdev, port, resp_len);
+}
+
+static int __subn_get_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port));
+ u32 num_ports = OPA_AM_NPORT(am);
+ u8 section = (am & 0x00ff0000) >> 16;
+ u32 port_num = OPA_AM_PORTNUM(am);
+ u8 *p = data;
+ int size = 0;
+
+ if (port_num == 0)
+ port_num = port;
+
+ if (num_ports != 1 || port_num != port) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ switch (section) {
+ case OPA_VLARB_LOW_ELEMENTS:
+ size = fm_get_table(ppd, FM_TBL_VL_LOW_ARB, p);
+ break;
+ case OPA_VLARB_HIGH_ELEMENTS:
+ size = fm_get_table(ppd, FM_TBL_VL_HIGH_ARB, p);
+ break;
+ case OPA_VLARB_PREEMPT_ELEMENTS:
+ size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_ELEMS, p);
+ break;
+ case OPA_VLARB_PREEMPT_MATRIX:
+ size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_MATRIX, p);
+ break;
+ default:
+ pr_warn("OPA SubnGet(VL Arb) AM Invalid : 0x%x\n",
+ be32_to_cpu(smp->attr_mod));
+ smp->status |= IB_SMP_INVALID_FIELD;
+ break;
+ }
+
+ if (size > 0 && resp_len)
+ *resp_len += size;
+
+ return reply((struct ib_mad_hdr *)smp);
+}
+
+static int __subn_set_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data,
+ struct ib_device *ibdev, u8 port,
+ u32 *resp_len)
+{
+ struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port));
+ u32 num_ports = OPA_AM_NPORT(am);
+ u8 section = (am & 0x00ff0000) >> 16;
+ u32 port_num = OPA_AM_PORTNUM(am);
+ u8 *p = data;
+
+ if (port_num == 0)
+ port_num = port;
+
+ if (num_ports != 1 || port_num != port) {
+ smp->status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)smp);
+ }
+
+ switch (section) {
+ case OPA_VLARB_LOW_ELEMENTS:
+ (void) fm_set_table(ppd, FM_TBL_VL_LOW_ARB, p);
+ break;
+ case OPA_VLARB_HIGH_ELEMENTS:
+ (void) fm_set_table(ppd, FM_TBL_VL_HIGH_ARB, p);
+ break;
+ /* neither OPA_VLARB_PREEMPT_ELEMENTS, or OPA_VLARB_PREEMPT_MATRIX
+ * can be changed from the default values */
+ case OPA_VLARB_PREEMPT_ELEMENTS:
+ /* FALLTHROUGH */
+ case OPA_VLARB_PREEMPT_MATRIX:
+ smp->status |= IB_SMP_UNSUP_METH_ATTR;
+ break;
+ default:
+ pr_warn("OPA SubnSet(VL Arb) AM Invalid : 0x%x\n",
+ be32_to_cpu(smp->attr_mod));
+ smp->status |= IB_SMP_INVALID_FIELD;
+ break;
+ }
+
+ return __subn_get_opa_vl_arb(smp, am, data, ibdev, port, resp_len);
+}
+
+struct opa_pma_mad {
+ struct ib_mad_hdr mad_hdr;
+ u8 data[2024];
+} __packed;
+
+struct opa_port_status_req {
+ __u8 port_num;
+ __u8 reserved[3];
+ __be32 vl_select_mask;
+};
+
+#define VL_MASK_ALL 0x000080ff
+
+struct opa_port_status_rsp {
+ __u8 port_num;
+ __u8 reserved[3];
+ __be32 vl_select_mask;
+
+ /* Data counters */
+ __be64 port_xmit_data;
+ __be64 port_rcv_data;
+ __be64 port_xmit_pkts;
+ __be64 port_rcv_pkts;
+ __be64 port_multicast_xmit_pkts;
+ __be64 port_multicast_rcv_pkts;
+ __be64 port_xmit_wait;
+ __be64 sw_port_congestion;
+ __be64 port_rcv_fecn;
+ __be64 port_rcv_becn;
+ __be64 port_xmit_time_cong;
+ __be64 port_xmit_wasted_bw;
+ __be64 port_xmit_wait_data;
+ __be64 port_rcv_bubble;
+ __be64 port_mark_fecn;
+ /* Error counters */
+ __be64 port_rcv_constraint_errors;
+ __be64 port_rcv_switch_relay_errors;
+ __be64 port_xmit_discards;
+ __be64 port_xmit_constraint_errors;
+ __be64 port_rcv_remote_physical_errors;
+ __be64 local_link_integrity_errors;
+ __be64 port_rcv_errors;
+ __be64 excessive_buffer_overruns;
+ __be64 fm_config_errors;
+ __be32 link_error_recovery;
+ __be32 link_downed;
+ u8 uncorrectable_errors;
+
+ u8 link_quality_indicator; /* 5res, 3bit */
+ u8 res2[6];
+ struct _vls_pctrs {
+ /* per-VL Data counters */
+ __be64 port_vl_xmit_data;
+ __be64 port_vl_rcv_data;
+ __be64 port_vl_xmit_pkts;
+ __be64 port_vl_rcv_pkts;
+ __be64 port_vl_xmit_wait;
+ __be64 sw_port_vl_congestion;
+ __be64 port_vl_rcv_fecn;
+ __be64 port_vl_rcv_becn;
+ __be64 port_xmit_time_cong;
+ __be64 port_vl_xmit_wasted_bw;
+ __be64 port_vl_xmit_wait_data;
+ __be64 port_vl_rcv_bubble;
+ __be64 port_vl_mark_fecn;
+ __be64 port_vl_xmit_discards;
+ } vls[0]; /* real array size defined by # bits set in vl_select_mask */
+};
+
+enum counter_selects {
+ CS_PORT_XMIT_DATA = (1 << 31),
+ CS_PORT_RCV_DATA = (1 << 30),
+ CS_PORT_XMIT_PKTS = (1 << 29),
+ CS_PORT_RCV_PKTS = (1 << 28),
+ CS_PORT_MCAST_XMIT_PKTS = (1 << 27),
+ CS_PORT_MCAST_RCV_PKTS = (1 << 26),
+ CS_PORT_XMIT_WAIT = (1 << 25),
+ CS_SW_PORT_CONGESTION = (1 << 24),
+ CS_PORT_RCV_FECN = (1 << 23),
+ CS_PORT_RCV_BECN = (1 << 22),
+ CS_PORT_XMIT_TIME_CONG = (1 << 21),
+ CS_PORT_XMIT_WASTED_BW = (1 << 20),
+ CS_PORT_XMIT_WAIT_DATA = (1 << 19),
+ CS_PORT_RCV_BUBBLE = (1 << 18),
+ CS_PORT_MARK_FECN = (1 << 17),
+ CS_PORT_RCV_CONSTRAINT_ERRORS = (1 << 16),
+ CS_PORT_RCV_SWITCH_RELAY_ERRORS = (1 << 15),
+ CS_PORT_XMIT_DISCARDS = (1 << 14),
+ CS_PORT_XMIT_CONSTRAINT_ERRORS = (1 << 13),
+ CS_PORT_RCV_REMOTE_PHYSICAL_ERRORS = (1 << 12),
+ CS_LOCAL_LINK_INTEGRITY_ERRORS = (1 << 11),
+ CS_PORT_RCV_ERRORS = (1 << 10),
+ CS_EXCESSIVE_BUFFER_OVERRUNS = (1 << 9),
+ CS_FM_CONFIG_ERRORS = (1 << 8),
+ CS_LINK_ERROR_RECOVERY = (1 << 7),
+ CS_LINK_DOWNED = (1 << 6),
+ CS_UNCORRECTABLE_ERRORS = (1 << 5),
+};
+
+struct opa_clear_port_status {
+ __be64 port_select_mask[4];
+ __be32 counter_select_mask;
+};
+
+struct opa_aggregate {
+ __be16 attr_id;
+ __be16 err_reqlength; /* 1 bit, 8 res, 7 bit */
+ __be32 attr_mod;
+ u8 data[0];
+};
+
+/* Request contains first two fields, response contains those plus the rest */
+struct opa_port_data_counters_msg {
+ __be64 port_select_mask[4];
+ __be32 vl_select_mask;
+
+ /* Response fields follow */
+ __be32 reserved1;
+ struct _port_dctrs {
+ u8 port_number;
+ u8 reserved2[3];
+ __be32 link_quality_indicator; /* 29res, 3bit */
+
+ /* Data counters */
+ __be64 port_xmit_data;
+ __be64 port_rcv_data;
+ __be64 port_xmit_pkts;
+ __be64 port_rcv_pkts;
+ __be64 port_multicast_xmit_pkts;
+ __be64 port_multicast_rcv_pkts;
+ __be64 port_xmit_wait;
+ __be64 sw_port_congestion;
+ __be64 port_rcv_fecn;
+ __be64 port_rcv_becn;
+ __be64 port_xmit_time_cong;
+ __be64 port_xmit_wasted_bw;
+ __be64 port_xmit_wait_data;
+ __be64 port_rcv_bubble;
+ __be64 port_mark_fecn;
+
+ __be64 port_error_counter_summary;
+ /* Sum of error counts/port */
+
+ struct _vls_dctrs {
+ /* per-VL Data counters */
+ __be64 port_vl_xmit_data;
+ __be64 port_vl_rcv_data;
+ __be64 port_vl_xmit_pkts;
+ __be64 port_vl_rcv_pkts;
+ __be64 port_vl_xmit_wait;
+ __be64 sw_port_vl_congestion;
+ __be64 port_vl_rcv_fecn;
+ __be64 port_vl_rcv_becn;
+ __be64 port_xmit_time_cong;
+ __be64 port_vl_xmit_wasted_bw;
+ __be64 port_vl_xmit_wait_data;
+ __be64 port_vl_rcv_bubble;
+ __be64 port_vl_mark_fecn;
+ } vls[0];
+ /* array size defined by #bits set in vl_select_mask*/
+ } port[1]; /* array size defined by #ports in attribute modifier */
+};
+
+#define COUNTER_SIZE_MODE_ALL64 0
+#define COUNTER_SIZE_MODE_ALL32 1
+#define COUNTER_SIZE_MODE_MIXED 2
+
+struct opa_port_error_counters64_msg {
+ /* Request contains first two fields, response contains the
+ * whole magilla */
+ __be64 port_select_mask[4];
+ __be32 vl_select_mask;
+
+ /* Response-only fields follow */
+ __be32 reserved1;
+ struct _port_ectrs {
+ u8 port_number;
+ u8 reserved2[7];
+ __be64 port_rcv_constraint_errors;
+ __be64 port_rcv_switch_relay_errors;
+ __be64 port_xmit_discards;
+ __be64 port_xmit_constraint_errors;
+ __be64 port_rcv_remote_physical_errors;
+ __be64 local_link_integrity_errors;
+ __be64 port_rcv_errors;
+ __be64 excessive_buffer_overruns;
+ __be64 fm_config_errors;
+ __be32 link_error_recovery;
+ __be32 link_downed;
+ u8 uncorrectable_errors;
+ u8 reserved3[7];
+ struct _vls_ectrs {
+ __be64 port_vl_xmit_discards;
+ } vls[0];
+ /* array size defined by #bits set in vl_select_mask */
+ } port[1]; /* array size defined by #ports in attribute modifier */
+};
+
+struct opa_port_error_info_msg {
+ __be64 port_select_mask[4];
+ __be32 error_info_select_mask;
+ __be32 reserved1;
+ struct _port_ei {
+
+ u8 port_number;
+ u8 reserved2[7];
+
+ /* PortRcvErrorInfo */
+ struct {
+ u8 status_and_code;
+ union {
+ u8 raw[17];
+ struct {
+ /* EI1to12 format */
+ u8 packet_flit1[8];
+ u8 packet_flit2[8];
+ u8 remaining_flit_bits12;
+ } ei1to12;
+ struct {
+ u8 packet_bytes[8];
+ u8 remaining_flit_bits;
+ } ei13;
+ } ei;
+ u8 reserved3[6];
+ } __packed port_rcv_ei;
+
+ /* ExcessiveBufferOverrunInfo */
+ struct {
+ u8 status_and_sc;
+ u8 reserved4[7];
+ } __packed excessive_buffer_overrun_ei;
+
+ /* PortXmitConstraintErrorInfo */
+ struct {
+ u8 status;
+ u8 reserved5;
+ __be16 pkey;
+ __be32 slid;
+ } __packed port_xmit_constraint_ei;
+
+ /* PortRcvConstraintErrorInfo */
+ struct {
+ u8 status;
+ u8 reserved6;
+ __be16 pkey;
+ __be32 slid;
+ } __packed port_rcv_constraint_ei;
+
+ /* PortRcvSwitchRelayErrorInfo */
+ struct {
+ u8 status_and_code;
+ u8 reserved7[3];
+ __u32 error_info;
+ } __packed port_rcv_switch_relay_ei;
+
+ /* UncorrectableErrorInfo */
+ struct {
+ u8 status_and_code;
+ u8 reserved8;
+ } __packed uncorrectable_ei;
+
+ /* FMConfigErrorInfo */
+ struct {
+ u8 status_and_code;
+ u8 error_info;
+ } __packed fm_config_ei;
+ __u32 reserved9;
+ } port[1]; /* actual array size defined by #ports in attr modifier */
+};
+
+/* opa_port_error_info_msg error_info_select_mask bit definitions */
+enum error_info_selects {
+ ES_PORT_RCV_ERROR_INFO = (1 << 31),
+ ES_EXCESSIVE_BUFFER_OVERRUN_INFO = (1 << 30),
+ ES_PORT_XMIT_CONSTRAINT_ERROR_INFO = (1 << 29),
+ ES_PORT_RCV_CONSTRAINT_ERROR_INFO = (1 << 28),
+ ES_PORT_RCV_SWITCH_RELAY_ERROR_INFO = (1 << 27),
+ ES_UNCORRECTABLE_ERROR_INFO = (1 << 26),
+ ES_FM_CONFIG_ERROR_INFO = (1 << 25)
+};
+
+static int pma_get_opa_classportinfo(struct opa_pma_mad *pmp,
+ struct ib_device *ibdev)
+{
+ struct ib_class_port_info *p =
+ (struct ib_class_port_info *)pmp->data;
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+
+ memset(pmp->data, 0, sizeof(pmp->data));
+
+ if (pmp->mad_hdr.attr_mod != 0)
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+
+ p->base_version = OPA_MGMT_BASE_VERSION;
+ p->class_version = OPA_SMI_CLASS_VERSION;
+ /*
+ * Set the most significant bit of CM2 to indicate support for
+ * congestion statistics
+ */
+ p->reserved[0] = dd->psxmitwait_supported << 7;
+ /*
+ * Expected response time is 4.096 usec. * 2^18 == 1.073741824 sec.
+ */
+ p->resp_time_value = 18;
+
+ return reply((struct ib_mad_hdr *)pmp);
+}
+
+static void a0_portstatus(struct hfi1_devdata *dd,
+ struct opa_port_status_rsp *rsp, u32 vl_select_mask)
+{
+ if (!is_bx(dd)) {
+ unsigned long vl;
+ int vfi = 0;
+ u64 sum_vl_xmit_wait = 0;
+ u64 rcv_data, rcv_bubble;
+
+ rcv_data = be64_to_cpu(rsp->port_rcv_data);
+ rcv_bubble = be64_to_cpu(rsp->port_rcv_bubble);
+ /* In the measured time period, calculate the total number
+ * of flits that were received. Subtract out one false
+ * rcv_bubble increment for every 32 received flits but
+ * don't let the number go negative.
+ */
+ if (rcv_bubble >= (rcv_data>>5)) {
+ rcv_bubble -= (rcv_data>>5);
+ rsp->port_rcv_bubble = cpu_to_be64(rcv_bubble);
+ }
+ for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
+ 8 * sizeof(vl_select_mask)) {
+ rcv_data = be64_to_cpu(rsp->vls[vfi].port_vl_rcv_data);
+ rcv_bubble =
+ be64_to_cpu(rsp->vls[vfi].port_vl_rcv_bubble);
+ if (rcv_bubble >= (rcv_data>>5)) {
+ rcv_bubble -= (rcv_data>>5);
+ rsp->vls[vfi].port_vl_rcv_bubble =
+ cpu_to_be64(rcv_bubble);
+ }
+ vfi++;
+ }
+
+ vfi = 0;
+ for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
+ 8 * sizeof(vl_select_mask)) {
+ u64 tmp = sum_vl_xmit_wait +
+ be64_to_cpu(rsp->vls[vfi++].port_vl_xmit_wait);
+ if (tmp < sum_vl_xmit_wait) {
+ /* we wrapped */
+ sum_vl_xmit_wait = (u64) ~0;
+ break;
+ }
+ sum_vl_xmit_wait = tmp;
+ }
+ if (be64_to_cpu(rsp->port_xmit_wait) > sum_vl_xmit_wait)
+ rsp->port_xmit_wait = cpu_to_be64(sum_vl_xmit_wait);
+ }
+}
+
+
+static int pma_get_opa_portstatus(struct opa_pma_mad *pmp,
+ struct ib_device *ibdev, u8 port)
+{
+ struct opa_port_status_req *req =
+ (struct opa_port_status_req *)pmp->data;
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ struct opa_port_status_rsp *rsp;
+ u32 vl_select_mask = be32_to_cpu(req->vl_select_mask);
+ unsigned long vl;
+ size_t response_data_size;
+ u32 nports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
+ u8 port_num = req->port_num;
+ u8 num_vls = hweight32(vl_select_mask);
+ struct _vls_pctrs *vlinfo;
+ struct hfi1_ibport *ibp = to_iport(ibdev, port);
+ struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+ int vfi;
+ u64 tmp, tmp2;
+
+ response_data_size = sizeof(struct opa_port_status_rsp) +
+ num_vls * sizeof(struct _vls_pctrs);
+ if (response_data_size > sizeof(pmp->data)) {
+ pmp->mad_hdr.status |= OPA_PM_STATUS_REQUEST_TOO_LARGE;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ if (nports != 1 || (port_num && port_num != port)
+ || num_vls > OPA_MAX_VLS || (vl_select_mask & ~VL_MASK_ALL)) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ memset(pmp->data, 0, sizeof(pmp->data));
+
+ rsp = (struct opa_port_status_rsp *)pmp->data;
+ if (port_num)
+ rsp->port_num = port_num;
+ else
+ rsp->port_num = port;
+
+ rsp->port_rcv_constraint_errors =
+ cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
+ CNTR_INVALID_VL));
+
+ hfi1_read_link_quality(dd, &rsp->link_quality_indicator);
+
+ rsp->vl_select_mask = cpu_to_be32(vl_select_mask);
+ rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_bubble =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL));
+ rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_multicast_xmit_pkts =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_multicast_rcv_pkts =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_xmit_wait =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL));
+ rsp->port_rcv_fecn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL));
+ rsp->port_rcv_becn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL));
+ rsp->port_xmit_discards =
+ cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD,
+ CNTR_INVALID_VL));
+ rsp->port_xmit_constraint_errors =
+ cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_remote_physical_errors =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
+ CNTR_INVALID_VL));
+ tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
+ tmp2 = tmp + read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
+ if (tmp2 < tmp) {
+ /* overflow/wrapped */
+ rsp->local_link_integrity_errors = cpu_to_be64(~0);
+ } else {
+ rsp->local_link_integrity_errors = cpu_to_be64(tmp2);
+ }
+ tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
+ tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
+ CNTR_INVALID_VL);
+ if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) {
+ /* overflow/wrapped */
+ rsp->link_error_recovery = cpu_to_be32(~0);
+ } else {
+ rsp->link_error_recovery = cpu_to_be32(tmp2);
+ }
+ rsp->port_rcv_errors =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL));
+ rsp->excessive_buffer_overruns =
+ cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL));
+ rsp->fm_config_errors =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR,
+ CNTR_INVALID_VL));
+ rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN,
+ CNTR_INVALID_VL));
+
+ /* rsp->uncorrectable_errors is 8 bits wide, and it pegs at 0xff */
+ tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
+ rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff;
+
+ vlinfo = &(rsp->vls[0]);
+ vfi = 0;
+ /* The vl_select_mask has been checked above, and we know
+ * that it contains only entries which represent valid VLs.
+ * So in the for_each_set_bit() loop below, we don't need
+ * any additional checks for vl.
+ */
+ for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
+ 8 * sizeof(vl_select_mask)) {
+ memset(vlinfo, 0, sizeof(*vlinfo));
+
+ tmp = read_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl));
+ rsp->vls[vfi].port_vl_rcv_data = cpu_to_be64(tmp);
+ rsp->vls[vfi].port_vl_rcv_bubble =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_rcv_pkts =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_xmit_data =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_xmit_pkts =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_xmit_wait =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_rcv_fecn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_rcv_becn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL,
+ idx_from_vl(vl)));
+
+ vlinfo++;
+ vfi++;
+ }
+
+ a0_portstatus(dd, rsp, vl_select_mask);
+
+ return reply((struct ib_mad_hdr *)pmp);
+}
+
+static u64 get_error_counter_summary(struct ib_device *ibdev, u8 port)
+{
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ struct hfi1_ibport *ibp = to_iport(ibdev, port);
+ struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+ u64 error_counter_summary = 0, tmp;
+
+ error_counter_summary += read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
+ CNTR_INVALID_VL);
+ /* port_rcv_switch_relay_errors is 0 for HFIs */
+ error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_DSCD,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_DC_TX_REPLAY,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_DC_RX_REPLAY,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_DC_SEQ_CRC_CNT,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_DC_RCV_ERR,
+ CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL);
+ error_counter_summary += read_dev_cntr(dd, C_DC_FM_CFG_ERR,
+ CNTR_INVALID_VL);
+ /* ppd->link_downed is a 32-bit value */
+ error_counter_summary += read_port_cntr(ppd, C_SW_LINK_DOWN,
+ CNTR_INVALID_VL);
+ tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
+ /* this is an 8-bit quantity */
+ error_counter_summary += tmp < 0x100 ? (tmp & 0xff) : 0xff;
+
+ return error_counter_summary;
+}
+
+static void a0_datacounters(struct hfi1_devdata *dd, struct _port_dctrs *rsp,
+ u32 vl_select_mask)
+{
+ if (!is_bx(dd)) {
+ unsigned long vl;
+ int vfi = 0;
+ u64 rcv_data, rcv_bubble, sum_vl_xmit_wait = 0;
+
+ rcv_data = be64_to_cpu(rsp->port_rcv_data);
+ rcv_bubble = be64_to_cpu(rsp->port_rcv_bubble);
+ /* In the measured time period, calculate the total number
+ * of flits that were received. Subtract out one false
+ * rcv_bubble increment for every 32 received flits but
+ * don't let the number go negative.
+ */
+ if (rcv_bubble >= (rcv_data>>5)) {
+ rcv_bubble -= (rcv_data>>5);
+ rsp->port_rcv_bubble = cpu_to_be64(rcv_bubble);
+ }
+ for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
+ 8 * sizeof(vl_select_mask)) {
+ rcv_data = be64_to_cpu(rsp->vls[vfi].port_vl_rcv_data);
+ rcv_bubble =
+ be64_to_cpu(rsp->vls[vfi].port_vl_rcv_bubble);
+ if (rcv_bubble >= (rcv_data>>5)) {
+ rcv_bubble -= (rcv_data>>5);
+ rsp->vls[vfi].port_vl_rcv_bubble =
+ cpu_to_be64(rcv_bubble);
+ }
+ vfi++;
+ }
+ vfi = 0;
+ for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
+ 8 * sizeof(vl_select_mask)) {
+ u64 tmp = sum_vl_xmit_wait +
+ be64_to_cpu(rsp->vls[vfi++].port_vl_xmit_wait);
+ if (tmp < sum_vl_xmit_wait) {
+ /* we wrapped */
+ sum_vl_xmit_wait = (u64) ~0;
+ break;
+ }
+ sum_vl_xmit_wait = tmp;
+ }
+ if (be64_to_cpu(rsp->port_xmit_wait) > sum_vl_xmit_wait)
+ rsp->port_xmit_wait = cpu_to_be64(sum_vl_xmit_wait);
+ }
+}
+
+static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
+ struct ib_device *ibdev, u8 port)
+{
+ struct opa_port_data_counters_msg *req =
+ (struct opa_port_data_counters_msg *)pmp->data;
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ struct hfi1_ibport *ibp = to_iport(ibdev, port);
+ struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+ struct _port_dctrs *rsp;
+ struct _vls_dctrs *vlinfo;
+ size_t response_data_size;
+ u32 num_ports;
+ u8 num_pslm;
+ u8 lq, num_vls;
+ u64 port_mask;
+ unsigned long port_num;
+ unsigned long vl;
+ u32 vl_select_mask;
+ int vfi;
+
+ num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
+ num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
+ num_vls = hweight32(be32_to_cpu(req->vl_select_mask));
+ vl_select_mask = be32_to_cpu(req->vl_select_mask);
+
+ if (num_ports != 1 || (vl_select_mask & ~VL_MASK_ALL)) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ /* Sanity check */
+ response_data_size = sizeof(struct opa_port_data_counters_msg) +
+ num_vls * sizeof(struct _vls_dctrs);
+
+ if (response_data_size > sizeof(pmp->data)) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ /*
+ * The bit set in the mask needs to be consistent with the
+ * port the request came in on.
+ */
+ port_mask = be64_to_cpu(req->port_select_mask[3]);
+ port_num = find_first_bit((unsigned long *)&port_mask,
+ sizeof(port_mask));
+
+ if ((u8)port_num != port) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ rsp = (struct _port_dctrs *)&(req->port[0]);
+ memset(rsp, 0, sizeof(*rsp));
+
+ rsp->port_number = port;
+ /*
+ * Note that link_quality_indicator is a 32 bit quantity in
+ * 'datacounters' queries (as opposed to 'portinfo' queries,
+ * where it's a byte).
+ */
+ hfi1_read_link_quality(dd, &lq);
+ rsp->link_quality_indicator = cpu_to_be32((u32)lq);
+
+ /* rsp->sw_port_congestion is 0 for HFIs */
+ /* rsp->port_xmit_time_cong is 0 for HFIs */
+ /* rsp->port_xmit_wasted_bw ??? */
+ /* rsp->port_xmit_wait_data ??? */
+ /* rsp->port_mark_fecn is 0 for HFIs */
+
+ rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_bubble =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL));
+ rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_multicast_xmit_pkts =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_multicast_rcv_pkts =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS,
+ CNTR_INVALID_VL));
+ rsp->port_xmit_wait =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL));
+ rsp->port_rcv_fecn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL));
+ rsp->port_rcv_becn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL));
+
+ rsp->port_error_counter_summary =
+ cpu_to_be64(get_error_counter_summary(ibdev, port));
+
+ vlinfo = &(rsp->vls[0]);
+ vfi = 0;
+ /* The vl_select_mask has been checked above, and we know
+ * that it contains only entries which represent valid VLs.
+ * So in the for_each_set_bit() loop below, we don't need
+ * any additional checks for vl.
+ */
+ for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
+ 8 * sizeof(req->vl_select_mask)) {
+ memset(vlinfo, 0, sizeof(*vlinfo));
+
+ rsp->vls[vfi].port_vl_xmit_data =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_rcv_data =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RX_FLIT_VL,
+ idx_from_vl(vl)));
+ rsp->vls[vfi].port_vl_rcv_bubble =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_xmit_pkts =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_rcv_pkts =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_xmit_wait =
+ cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL,
+ idx_from_vl(vl)));
+
+ rsp->vls[vfi].port_vl_rcv_fecn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL,
+ idx_from_vl(vl)));
+ rsp->vls[vfi].port_vl_rcv_becn =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL,
+ idx_from_vl(vl)));
+
+ /* rsp->port_vl_xmit_time_cong is 0 for HFIs */
+ /* rsp->port_vl_xmit_wasted_bw ??? */
+ /* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ???
+ * does this differ from rsp->vls[vfi].port_vl_xmit_wait */
+ /*rsp->vls[vfi].port_vl_mark_fecn =
+ cpu_to_be64(read_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT
+ + offset));
+ */
+ vlinfo++;
+ vfi++;
+ }
+
+ a0_datacounters(dd, rsp, vl_select_mask);
+ return reply((struct ib_mad_hdr *)pmp);
+}
+
+static int pma_get_opa_porterrors(struct opa_pma_mad *pmp,
+ struct ib_device *ibdev, u8 port)
+{
+ size_t response_data_size;
+ struct _port_ectrs *rsp;
+ unsigned long port_num;
+ struct opa_port_error_counters64_msg *req;
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ u32 num_ports;
+ u32 counter_size_mode;
+ u8 num_pslm;
+ u8 num_vls;
+ struct hfi1_ibport *ibp;
+ struct hfi1_pportdata *ppd;
+ struct _vls_ectrs *vlinfo;
+ unsigned long vl;
+ u64 port_mask, tmp, tmp2;
+ u32 vl_select_mask;
+ int vfi;
+
+ req = (struct opa_port_error_counters64_msg *)pmp->data;
+
+ num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
+ counter_size_mode = (be32_to_cpu(pmp->mad_hdr.attr_mod) >> 22) & 0x3;
+
+ num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
+ num_vls = hweight32(be32_to_cpu(req->vl_select_mask));
+
+ if (num_ports != 1 || num_ports != num_pslm ||
+ (counter_size_mode != COUNTER_SIZE_MODE_ALL64)) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ response_data_size = sizeof(struct opa_port_error_counters64_msg) +
+ num_vls * sizeof(struct _vls_ectrs);
+
+ if (response_data_size > sizeof(pmp->data)) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+ /*
+ * The bit set in the mask needs to be consistent with the
+ * port the request came in on.
+ */
+ port_mask = be64_to_cpu(req->port_select_mask[3]);
+ port_num = find_first_bit((unsigned long *)&port_mask,
+ sizeof(port_mask));
+
+ if ((u8)port_num != port) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ rsp = (struct _port_ectrs *)&(req->port[0]);
+
+ ibp = to_iport(ibdev, port_num);
+ ppd = ppd_from_ibp(ibp);
+
+ memset(rsp, 0, sizeof(*rsp));
+ rsp->port_number = (u8)port_num;
+
+ rsp->port_rcv_constraint_errors =
+ cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
+ CNTR_INVALID_VL));
+ /* port_rcv_switch_relay_errors is 0 for HFIs */
+ rsp->port_xmit_discards =
+ cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD,
+ CNTR_INVALID_VL));
+ rsp->port_rcv_remote_physical_errors =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
+ CNTR_INVALID_VL));
+ tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
+ tmp2 = tmp + read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
+ if (tmp2 < tmp) {
+ /* overflow/wrapped */
+ rsp->local_link_integrity_errors = cpu_to_be64(~0);
+ } else {
+ rsp->local_link_integrity_errors = cpu_to_be64(tmp2);
+ }
+ tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
+ tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
+ CNTR_INVALID_VL);
+ if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) {
+ /* overflow/wrapped */
+ rsp->link_error_recovery = cpu_to_be32(~0);
+ } else {
+ rsp->link_error_recovery = cpu_to_be32(tmp2);
+ }
+ rsp->port_xmit_constraint_errors =
+ cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
+ CNTR_INVALID_VL));
+ rsp->excessive_buffer_overruns =
+ cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL));
+ rsp->fm_config_errors =
+ cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR,
+ CNTR_INVALID_VL));
+ rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN,
+ CNTR_INVALID_VL));
+ tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
+ rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff;
+
+ vlinfo = (struct _vls_ectrs *)&(rsp->vls[0]);
+ vfi = 0;
+ vl_select_mask = be32_to_cpu(req->vl_select_mask);
+ for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
+ 8 * sizeof(req->vl_select_mask)) {
+ memset(vlinfo, 0, sizeof(*vlinfo));
+ /* vlinfo->vls[vfi].port_vl_xmit_discards ??? */
+ vlinfo += 1;
+ vfi++;
+ }
+
+ return reply((struct ib_mad_hdr *)pmp);
+}
+
+static int pma_get_opa_errorinfo(struct opa_pma_mad *pmp,
+ struct ib_device *ibdev, u8 port)
+{
+ size_t response_data_size;
+ struct _port_ei *rsp;
+ struct opa_port_error_info_msg *req;
+ struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
+ u64 port_mask;
+ u32 num_ports;
+ unsigned long port_num;
+ u8 num_pslm;
+ u64 reg;
+
+ req = (struct opa_port_error_info_msg *)pmp->data;
+ rsp = (struct _port_ei *)&(req->port[0]);
+
+ num_ports = OPA_AM_NPORT(be32_to_cpu(pmp->mad_hdr.attr_mod));
+ num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
+
+ memset(rsp, 0, sizeof(*rsp));
+
+ if (num_ports != 1 || num_ports != num_pslm) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ /* Sanity check */
+ response_data_size = sizeof(struct opa_port_error_info_msg);
+
+ if (response_data_size > sizeof(pmp->data)) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ /*
+ * The bit set in the mask needs to be consistent with the port
+ * the request came in on.
+ */
+ port_mask = be64_to_cpu(req->port_select_mask[3]);
+ port_num = find_first_bit((unsigned long *)&port_mask,
+ sizeof(port_mask));
+
+ if ((u8)port_num != port) {
+ pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
+ return reply((struct ib_mad_hdr *)pmp);
+ }
+
+ /* PortRcvErrorInfo */
+ rsp->port_rcv_ei.status_and_code =
+ dd->err_info_rcvport.status_and_code;
+ memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit1,
+ &dd->err_info_rcvport.packet_flit1, sizeof(u64));
+ memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit2,
+ &dd->err_info_rcvport.packet_flit2, sizeof(u64));
+
+ /* ExcessiverBufferOverrunInfo */
+ reg = read_csr(dd, RCV_ERR_INFO);
+ if (reg & RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK) {
+ /* if the RcvExcessBufferOverrun bit is set, save SC of
+ * first pkt that encountered an excess buffer overrun */
+ u8 tmp = (u8)reg;
+
+ tmp &= RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SC_SMASK;
+ tmp <<= 2;