From patchwork Thu Jun 11 23:11:15 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Marciniszyn, Mike" X-Patchwork-Id: 6593221 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 3B97A9F326 for ; Thu, 11 Jun 2015 23:11:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1171E2052D for ; Thu, 11 Jun 2015 23:11:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D73A2054A for ; Thu, 11 Jun 2015 23:11:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754475AbbFKXLT (ORCPT ); Thu, 11 Jun 2015 19:11:19 -0400 Received: from mga11.intel.com ([192.55.52.93]:55991 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752875AbbFKXLS (ORCPT ); Thu, 11 Jun 2015 19:11:18 -0400 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 11 Jun 2015 16:11:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,598,1427785200"; d="scan'208";a="741798443" Received: from sedona.ch.intel.com ([143.182.228.65]) by fmsmga002.fm.intel.com with ESMTP; 11 Jun 2015 16:11:17 -0700 Received: from phlsvsles11.ph.intel.com (phlsvsles11.ph.intel.com [10.228.195.43]) by sedona.ch.intel.com (8.13.6/8.14.3/Standard MailSET/Hub) with ESMTP id t5BNBGnx003759; Thu, 11 Jun 2015 16:11:16 -0700 Received: from phlsvslse11.ph.intel.com (localhost [127.0.0.1]) by phlsvsles11.ph.intel.com with ESMTP id t5BNBFep017255; Thu, 11 Jun 2015 19:11:16 -0400 Subject: [PATCH 31/41] IB/hfi1: add sysfs routines To: dledford@redhat.com From: Mike Marciniszyn Cc: linux-rdma@vger.kernel.org Date: Thu, 11 Jun 2015 19:11:15 -0400 Message-ID: <20150611231115.16479.20056.stgit@phlsvslse11.ph.intel.com> In-Reply-To: <20150611230710.16479.62955.stgit@phlsvslse11.ph.intel.com> References: <20150611230710.16479.62955.stgit@phlsvslse11.ph.intel.com> User-Agent: StGit/0.16 MIME-Version: 1.0 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Andrew Friedley Signed-off-by: Arthur Kepner Signed-off-by: Brendan Cunningham Signed-off-by: Brian Welty Signed-off-by: Caz Yokoyama Signed-off-by: Dean Luick Signed-off-by: Dennis Dalessandro Signed-off-by: Easwar Hariharan Signed-off-by: Harish Chegondi Signed-off-by: Ira Weiny Signed-off-by: Jim Snow Signed-off-by: John Gregor Signed-off-by: Jubin John Signed-off-by: Kaike Wan Signed-off-by: Kevin Pine Signed-off-by: Kyle Liddell Signed-off-by: Mike Marciniszyn Signed-off-by: Mitko Haralanov Signed-off-by: Ravi Krishnaswamy Signed-off-by: Sadanand Warrier Signed-off-by: Sanath Kumar Signed-off-by: Sudeep Dutt Signed-off-by: Vlad Danushevsky --- drivers/infiniband/hw/hfi1/sysfs.c | 1083 ++++++++++++++++++++++++++++++++++++ 1 file changed, 1083 insertions(+) create mode 100644 drivers/infiniband/hw/hfi1/sysfs.c -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/infiniband/hw/hfi1/sysfs.c b/drivers/infiniband/hw/hfi1/sysfs.c new file mode 100644 index 0000000..fdedb20 --- /dev/null +++ b/drivers/infiniband/hw/hfi1/sysfs.c @@ -0,0 +1,1083 @@ +/* + * + * 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 + +#include "hfi.h" +#include "mad.h" +#include "trace.h" + +/* start of per-port functions */ +/* + * Get/Set heartbeat enable. OR of 1=enabled, 2=auto + */ +static ssize_t show_hrtbt_enb(struct hfi1_pportdata *ppd, char *buf) +{ + int ret; + + ret = hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_HRTBT); + ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); + return ret; +} + +static ssize_t store_hrtbt_enb(struct hfi1_pportdata *ppd, const char *buf, + size_t count) +{ + struct hfi1_devdata *dd = ppd->dd; + int ret; + u16 val; + + ret = kstrtou16(buf, 0, &val); + if (ret) { + dd_dev_err(dd, "attempt to set invalid Heartbeat enable\n"); + return ret; + } + + /* + * Set the "intentional" heartbeat enable per either of + * "Enable" and "Auto", as these are normally set together. + * This bit is consulted when leaving loopback mode, + * because entering loopback mode overrides it and automatically + * disables heartbeat. + */ + ret = hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_HRTBT, val); + return ret < 0 ? ret : count; +} + +static ssize_t store_led_override(struct hfi1_pportdata *ppd, const char *buf, + size_t count) +{ + struct hfi1_devdata *dd = ppd->dd; + int ret; + u16 val; + + ret = kstrtou16(buf, 0, &val); + if (ret) { + dd_dev_err(dd, "attempt to set invalid LED override\n"); + return ret; + } + + hfi1_set_led_override(ppd, val); + return count; +} + +static ssize_t show_status(struct hfi1_pportdata *ppd, char *buf) +{ + ssize_t ret; + + if (!ppd->statusp) + ret = -EINVAL; + else + ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n", + (unsigned long long) *(ppd->statusp)); + return ret; +} + +/* + * For userland compatibility, these offsets must remain fixed. + * They are strings for HFI1_STATUS_* + */ +static const char * const hfi1_status_str[] = { + "Initted", + "", + "", + "", + "", + "Present", + "IB_link_up", + "IB_configured", + "", + "Fatal_Hardware_Error", + NULL, +}; + +static ssize_t show_status_str(struct hfi1_pportdata *ppd, char *buf) +{ + int i, any; + u64 s; + ssize_t ret; + + if (!ppd->statusp) { + ret = -EINVAL; + goto bail; + } + + s = *(ppd->statusp); + *buf = '\0'; + for (any = i = 0; s && hfi1_status_str[i]; i++) { + if (s & 1) { + /* if overflow */ + if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) + break; + if (strlcat(buf, hfi1_status_str[i], PAGE_SIZE) >= + PAGE_SIZE) + break; + any = 1; + } + s >>= 1; + } + if (any) + strlcat(buf, "\n", PAGE_SIZE); + + ret = strlen(buf); + +bail: + return ret; +} + +/* end of per-port functions */ + +/* + * Start of per-port file structures and support code + * Because we are fitting into other infrastructure, we have to supply the + * full set of kobject/sysfs_ops structures and routines. + */ +#define HFI1_PORT_ATTR(name, mode, show, store) \ + static struct hfi1_port_attr port_attr_##name = \ + __ATTR(name, mode, show, store) + +struct hfi1_port_attr { + struct attribute attr; + ssize_t (*show)(struct hfi1_pportdata *, char *); + ssize_t (*store)(struct hfi1_pportdata *, const char *, size_t); +}; + +HFI1_PORT_ATTR(led_override, S_IWUSR, NULL, store_led_override); +HFI1_PORT_ATTR(hrtbt_enable, S_IWUSR | S_IRUGO, show_hrtbt_enb, + store_hrtbt_enb); +HFI1_PORT_ATTR(status, S_IRUGO, show_status, NULL); +HFI1_PORT_ATTR(status_str, S_IRUGO, show_status_str, NULL); + +static struct attribute *port_default_attributes[] = { + &port_attr_led_override.attr, + &port_attr_hrtbt_enable.attr, + &port_attr_status.attr, + &port_attr_status_str.attr, + NULL +}; + +/* + * Start of per-port congestion control structures and support code + */ + +/* + * Congestion control table size followed by table entries + */ +static ssize_t read_cc_table_bin(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t pos, size_t count) +{ + int ret; + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); + struct cc_state *cc_state; + + ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) + + sizeof(__be16); + + if (pos > ret) + return -EINVAL; + + if (count > ret - pos) + count = ret - pos; + + if (!count) + return count; + + rcu_read_lock(); + cc_state = get_cc_state(ppd); + if (cc_state == NULL) { + rcu_read_unlock(); + return -EINVAL; + } + memcpy(buf, &cc_state->cct, count); + rcu_read_unlock(); + + return count; +} + +static void port_release(struct kobject *kobj) +{ + /* nothing to do since memory is freed by hfi1_free_devdata() */ +} + +static struct kobj_type port_cc_ktype = { + .release = port_release, +}; + +static struct bin_attribute cc_table_bin_attr = { + .attr = {.name = "cc_table_bin", .mode = 0444}, + .read = read_cc_table_bin, + .size = PAGE_SIZE, +}; + +/* + * Congestion settings: port control, control map and an array of 16 + * entries for the congestion entries - increase, timer, event log + * trigger threshold and the minimum injection rate delay. + */ +static ssize_t read_cc_setting_bin(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t pos, size_t count) +{ + int ret; + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); + struct cc_state *cc_state; + + ret = sizeof(struct opa_congestion_setting_attr_shadow); + + if (pos > ret) + return -EINVAL; + if (count > ret - pos) + count = ret - pos; + + if (!count) + return count; + + rcu_read_lock(); + cc_state = get_cc_state(ppd); + if (cc_state == NULL) { + rcu_read_unlock(); + return -EINVAL; + } + memcpy(buf, &cc_state->cong_setting, count); + rcu_read_unlock(); + + return count; +} + +static struct bin_attribute cc_setting_bin_attr = { + .attr = {.name = "cc_settings_bin", .mode = 0444}, + .read = read_cc_setting_bin, + .size = PAGE_SIZE, +}; + + +static ssize_t portattr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct hfi1_port_attr *pattr = + container_of(attr, struct hfi1_port_attr, attr); + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, pport_kobj); + + return pattr->show(ppd, buf); +} + +static ssize_t portattr_store(struct kobject *kobj, + struct attribute *attr, + const char *buf, size_t len) +{ + struct hfi1_port_attr *pattr = + container_of(attr, struct hfi1_port_attr, attr); + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, pport_kobj); + + return pattr->store(ppd, buf, len); +} + + +static const struct sysfs_ops hfi1_port_ops = { + .show = portattr_show, + .store = portattr_store, +}; + +static struct kobj_type hfi1_port_ktype = { + .release = port_release, + .sysfs_ops = &hfi1_port_ops, + .default_attrs = port_default_attributes +}; + +/* Start sc2vl */ +#define HFI1_SC2VL_ATTR(N) \ + static struct hfi1_sc2vl_attr hfi1_sc2vl_attr_##N = { \ + .attr = { .name = __stringify(N), .mode = 0444 }, \ + .sc = N \ + } + +struct hfi1_sc2vl_attr { + struct attribute attr; + int sc; +}; + +HFI1_SC2VL_ATTR(0); +HFI1_SC2VL_ATTR(1); +HFI1_SC2VL_ATTR(2); +HFI1_SC2VL_ATTR(3); +HFI1_SC2VL_ATTR(4); +HFI1_SC2VL_ATTR(5); +HFI1_SC2VL_ATTR(6); +HFI1_SC2VL_ATTR(7); +HFI1_SC2VL_ATTR(8); +HFI1_SC2VL_ATTR(9); +HFI1_SC2VL_ATTR(10); +HFI1_SC2VL_ATTR(11); +HFI1_SC2VL_ATTR(12); +HFI1_SC2VL_ATTR(13); +HFI1_SC2VL_ATTR(14); +HFI1_SC2VL_ATTR(15); +HFI1_SC2VL_ATTR(16); +HFI1_SC2VL_ATTR(17); +HFI1_SC2VL_ATTR(18); +HFI1_SC2VL_ATTR(19); +HFI1_SC2VL_ATTR(20); +HFI1_SC2VL_ATTR(21); +HFI1_SC2VL_ATTR(22); +HFI1_SC2VL_ATTR(23); +HFI1_SC2VL_ATTR(24); +HFI1_SC2VL_ATTR(25); +HFI1_SC2VL_ATTR(26); +HFI1_SC2VL_ATTR(27); +HFI1_SC2VL_ATTR(28); +HFI1_SC2VL_ATTR(29); +HFI1_SC2VL_ATTR(30); +HFI1_SC2VL_ATTR(31); + + +static struct attribute *sc2vl_default_attributes[] = { + &hfi1_sc2vl_attr_0.attr, + &hfi1_sc2vl_attr_1.attr, + &hfi1_sc2vl_attr_2.attr, + &hfi1_sc2vl_attr_3.attr, + &hfi1_sc2vl_attr_4.attr, + &hfi1_sc2vl_attr_5.attr, + &hfi1_sc2vl_attr_6.attr, + &hfi1_sc2vl_attr_7.attr, + &hfi1_sc2vl_attr_8.attr, + &hfi1_sc2vl_attr_9.attr, + &hfi1_sc2vl_attr_10.attr, + &hfi1_sc2vl_attr_11.attr, + &hfi1_sc2vl_attr_12.attr, + &hfi1_sc2vl_attr_13.attr, + &hfi1_sc2vl_attr_14.attr, + &hfi1_sc2vl_attr_15.attr, + &hfi1_sc2vl_attr_16.attr, + &hfi1_sc2vl_attr_17.attr, + &hfi1_sc2vl_attr_18.attr, + &hfi1_sc2vl_attr_19.attr, + &hfi1_sc2vl_attr_20.attr, + &hfi1_sc2vl_attr_21.attr, + &hfi1_sc2vl_attr_22.attr, + &hfi1_sc2vl_attr_23.attr, + &hfi1_sc2vl_attr_24.attr, + &hfi1_sc2vl_attr_25.attr, + &hfi1_sc2vl_attr_26.attr, + &hfi1_sc2vl_attr_27.attr, + &hfi1_sc2vl_attr_28.attr, + &hfi1_sc2vl_attr_29.attr, + &hfi1_sc2vl_attr_30.attr, + &hfi1_sc2vl_attr_31.attr, + NULL +}; + +static ssize_t sc2vl_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct hfi1_sc2vl_attr *sattr = + container_of(attr, struct hfi1_sc2vl_attr, attr); + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, sc2vl_kobj); + struct hfi1_devdata *dd = ppd->dd; + + return sprintf(buf, "%u\n", *((u8 *)dd->sc2vl + sattr->sc)); +} + +static const struct sysfs_ops hfi1_sc2vl_ops = { + .show = sc2vl_attr_show, +}; + +static struct kobj_type hfi1_sc2vl_ktype = { + .release = port_release, + .sysfs_ops = &hfi1_sc2vl_ops, + .default_attrs = sc2vl_default_attributes +}; + +/* End sc2vl */ + +/* Start sl2sc */ +#define HFI1_SL2SC_ATTR(N) \ + static struct hfi1_sl2sc_attr hfi1_sl2sc_attr_##N = { \ + .attr = { .name = __stringify(N), .mode = 0444 }, \ + .sl = N \ + } + +struct hfi1_sl2sc_attr { + struct attribute attr; + int sl; +}; + +HFI1_SL2SC_ATTR(0); +HFI1_SL2SC_ATTR(1); +HFI1_SL2SC_ATTR(2); +HFI1_SL2SC_ATTR(3); +HFI1_SL2SC_ATTR(4); +HFI1_SL2SC_ATTR(5); +HFI1_SL2SC_ATTR(6); +HFI1_SL2SC_ATTR(7); +HFI1_SL2SC_ATTR(8); +HFI1_SL2SC_ATTR(9); +HFI1_SL2SC_ATTR(10); +HFI1_SL2SC_ATTR(11); +HFI1_SL2SC_ATTR(12); +HFI1_SL2SC_ATTR(13); +HFI1_SL2SC_ATTR(14); +HFI1_SL2SC_ATTR(15); +HFI1_SL2SC_ATTR(16); +HFI1_SL2SC_ATTR(17); +HFI1_SL2SC_ATTR(18); +HFI1_SL2SC_ATTR(19); +HFI1_SL2SC_ATTR(20); +HFI1_SL2SC_ATTR(21); +HFI1_SL2SC_ATTR(22); +HFI1_SL2SC_ATTR(23); +HFI1_SL2SC_ATTR(24); +HFI1_SL2SC_ATTR(25); +HFI1_SL2SC_ATTR(26); +HFI1_SL2SC_ATTR(27); +HFI1_SL2SC_ATTR(28); +HFI1_SL2SC_ATTR(29); +HFI1_SL2SC_ATTR(30); +HFI1_SL2SC_ATTR(31); + + +static struct attribute *sl2sc_default_attributes[] = { + &hfi1_sl2sc_attr_0.attr, + &hfi1_sl2sc_attr_1.attr, + &hfi1_sl2sc_attr_2.attr, + &hfi1_sl2sc_attr_3.attr, + &hfi1_sl2sc_attr_4.attr, + &hfi1_sl2sc_attr_5.attr, + &hfi1_sl2sc_attr_6.attr, + &hfi1_sl2sc_attr_7.attr, + &hfi1_sl2sc_attr_8.attr, + &hfi1_sl2sc_attr_9.attr, + &hfi1_sl2sc_attr_10.attr, + &hfi1_sl2sc_attr_11.attr, + &hfi1_sl2sc_attr_12.attr, + &hfi1_sl2sc_attr_13.attr, + &hfi1_sl2sc_attr_14.attr, + &hfi1_sl2sc_attr_15.attr, + &hfi1_sl2sc_attr_16.attr, + &hfi1_sl2sc_attr_17.attr, + &hfi1_sl2sc_attr_18.attr, + &hfi1_sl2sc_attr_19.attr, + &hfi1_sl2sc_attr_20.attr, + &hfi1_sl2sc_attr_21.attr, + &hfi1_sl2sc_attr_22.attr, + &hfi1_sl2sc_attr_23.attr, + &hfi1_sl2sc_attr_24.attr, + &hfi1_sl2sc_attr_25.attr, + &hfi1_sl2sc_attr_26.attr, + &hfi1_sl2sc_attr_27.attr, + &hfi1_sl2sc_attr_28.attr, + &hfi1_sl2sc_attr_29.attr, + &hfi1_sl2sc_attr_30.attr, + &hfi1_sl2sc_attr_31.attr, + NULL +}; + +static ssize_t sl2sc_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct hfi1_sl2sc_attr *sattr = + container_of(attr, struct hfi1_sl2sc_attr, attr); + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, sl2sc_kobj); + struct hfi1_ibport *ibp = &ppd->ibport_data; + + return sprintf(buf, "%u\n", ibp->sl_to_sc[sattr->sl]); +} + +static const struct sysfs_ops hfi1_sl2sc_ops = { + .show = sl2sc_attr_show, +}; + +static struct kobj_type hfi1_sl2sc_ktype = { + .release = port_release, + .sysfs_ops = &hfi1_sl2sc_ops, + .default_attrs = sl2sc_default_attributes +}; + +/* End sl2sc */ + +/* Start vl2mtu */ + +#define HFI1_VL2MTU_ATTR(N) \ + static struct hfi1_vl2mtu_attr hfi1_vl2mtu_attr_##N = { \ + .attr = { .name = __stringify(N), .mode = 0444 }, \ + .vl = N \ + } + +struct hfi1_vl2mtu_attr { + struct attribute attr; + int vl; +}; + +HFI1_VL2MTU_ATTR(0); +HFI1_VL2MTU_ATTR(1); +HFI1_VL2MTU_ATTR(2); +HFI1_VL2MTU_ATTR(3); +HFI1_VL2MTU_ATTR(4); +HFI1_VL2MTU_ATTR(5); +HFI1_VL2MTU_ATTR(6); +HFI1_VL2MTU_ATTR(7); +HFI1_VL2MTU_ATTR(8); +HFI1_VL2MTU_ATTR(9); +HFI1_VL2MTU_ATTR(10); +HFI1_VL2MTU_ATTR(11); +HFI1_VL2MTU_ATTR(12); +HFI1_VL2MTU_ATTR(13); +HFI1_VL2MTU_ATTR(14); +HFI1_VL2MTU_ATTR(15); + +static struct attribute *vl2mtu_default_attributes[] = { + &hfi1_vl2mtu_attr_0.attr, + &hfi1_vl2mtu_attr_1.attr, + &hfi1_vl2mtu_attr_2.attr, + &hfi1_vl2mtu_attr_3.attr, + &hfi1_vl2mtu_attr_4.attr, + &hfi1_vl2mtu_attr_5.attr, + &hfi1_vl2mtu_attr_6.attr, + &hfi1_vl2mtu_attr_7.attr, + &hfi1_vl2mtu_attr_8.attr, + &hfi1_vl2mtu_attr_9.attr, + &hfi1_vl2mtu_attr_10.attr, + &hfi1_vl2mtu_attr_11.attr, + &hfi1_vl2mtu_attr_12.attr, + &hfi1_vl2mtu_attr_13.attr, + &hfi1_vl2mtu_attr_14.attr, + &hfi1_vl2mtu_attr_15.attr, + NULL +}; + +static ssize_t vl2mtu_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct hfi1_vl2mtu_attr *vlattr = + container_of(attr, struct hfi1_vl2mtu_attr, attr); + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, vl2mtu_kobj); + struct hfi1_devdata *dd = ppd->dd; + + return sprintf(buf, "%u\n", dd->vld[vlattr->vl].mtu); +} + +static const struct sysfs_ops hfi1_vl2mtu_ops = { + .show = vl2mtu_attr_show, +}; + +static struct kobj_type hfi1_vl2mtu_ktype = { + .release = port_release, + .sysfs_ops = &hfi1_vl2mtu_ops, + .default_attrs = vl2mtu_default_attributes +}; + +/* Start diag_counters */ +#define HFI1_DIAGC_NORMAL 0x0 +#define HFI1_DIAGC_PCPU 0x1 + +#define HFI1_DIAGC_ATTR(N) \ + static struct hfi1_diagc_attr diagc_attr_##N = { \ + .attr = { .name = __stringify(N), .mode = 0664 }, \ + .counter = offsetof(struct hfi1_ibport, n_##N), \ + .type = HFI1_DIAGC_NORMAL, \ + .vl = CNTR_INVALID_VL \ + } + +#define HFI1_DIAGC_ATTR_PCPU(N, V, L) \ + static struct hfi1_diagc_attr diagc_attr_##N = { \ + .attr = { .name = __stringify(N), .mode = 0664 }, \ + .counter = V, \ + .type = HFI1_DIAGC_PCPU, \ + .vl = L \ + } + +struct hfi1_diagc_attr { + struct attribute attr; + size_t counter; + int type; + int vl; +}; + +HFI1_DIAGC_ATTR(rc_resends); +HFI1_DIAGC_ATTR_PCPU(rc_acks, C_SW_CPU_RC_ACKS, CNTR_INVALID_VL); +HFI1_DIAGC_ATTR_PCPU(rc_qacks, C_SW_CPU_RC_QACKS, CNTR_INVALID_VL); +HFI1_DIAGC_ATTR_PCPU(rc_delayed_comp, C_SW_CPU_RC_DELAYED_COMP, + CNTR_INVALID_VL); +HFI1_DIAGC_ATTR(seq_naks); +HFI1_DIAGC_ATTR(rdma_seq); +HFI1_DIAGC_ATTR(rnr_naks); +HFI1_DIAGC_ATTR(other_naks); +HFI1_DIAGC_ATTR(rc_timeouts); +HFI1_DIAGC_ATTR(loop_pkts); +HFI1_DIAGC_ATTR(pkt_drops); +HFI1_DIAGC_ATTR(dmawait); +HFI1_DIAGC_ATTR(unaligned); +HFI1_DIAGC_ATTR(rc_dupreq); +HFI1_DIAGC_ATTR(rc_seqnak); + +static struct attribute *diagc_default_attributes[] = { + &diagc_attr_rc_resends.attr, + &diagc_attr_rc_acks.attr, + &diagc_attr_rc_qacks.attr, + &diagc_attr_rc_delayed_comp.attr, + &diagc_attr_seq_naks.attr, + &diagc_attr_rdma_seq.attr, + &diagc_attr_rnr_naks.attr, + &diagc_attr_other_naks.attr, + &diagc_attr_rc_timeouts.attr, + &diagc_attr_loop_pkts.attr, + &diagc_attr_pkt_drops.attr, + &diagc_attr_dmawait.attr, + &diagc_attr_unaligned.attr, + &diagc_attr_rc_dupreq.attr, + &diagc_attr_rc_seqnak.attr, + NULL +}; + +static ssize_t diagc_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct hfi1_diagc_attr *dattr = + container_of(attr, struct hfi1_diagc_attr, attr); + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, diagc_kobj); + struct hfi1_ibport *hfip = &ppd->ibport_data; + + switch (dattr->type) { + case (HFI1_DIAGC_PCPU): + return(sprintf(buf, "%lld\n", + read_port_cntr(ppd, + dattr->counter, + dattr->vl))); + case (HFI1_DIAGC_NORMAL): + /* Fall through */ + default: + return sprintf(buf, "%u\n", + *(u32 *)((char *)hfip + dattr->counter)); + } +} + +static ssize_t diagc_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t size) +{ + struct hfi1_diagc_attr *dattr = + container_of(attr, struct hfi1_diagc_attr, attr); + struct hfi1_pportdata *ppd = + container_of(kobj, struct hfi1_pportdata, diagc_kobj); + struct hfi1_ibport *hfip = &ppd->ibport_data; + u32 val; + int ret; + + ret = kstrtou32(buf, 0, &val); + if (ret) + return ret; + *(u32 *)((char *)hfip + dattr->counter) = val; + return size; +} + +static const struct sysfs_ops hfi1_diagc_ops = { + .show = diagc_attr_show, + .store = diagc_attr_store, +}; + +static struct kobj_type diagc_ktype = { + .release = port_release, + .sysfs_ops = &hfi1_diagc_ops, + .default_attrs = diagc_default_attributes +}; + +/* End diag_counters */ + +/* end of per-port file structures and support code */ + +/* + * Start of per-unit (or driver, in some cases, but replicated + * per unit) functions (these get a device *) + */ +static ssize_t show_rev(struct device *device, struct device_attribute *attr, + char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + + return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev); +} + +static ssize_t show_hca(struct device *device, struct device_attribute *attr, + char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + int ret; + + if (!dd->boardname) + ret = -EINVAL; + else + ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname); + return ret; +} + +static ssize_t show_version(struct device *device, + struct device_attribute *attr, char *buf) +{ + /* The string printed here is already newline-terminated. */ + return scnprintf(buf, PAGE_SIZE, "%s", (char *)ib_hfi1_version); +} + +static ssize_t show_boardversion(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + + /* The string printed here is already newline-terminated. */ + return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion); +} + + +static ssize_t show_localbus_info(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + + return scnprintf(buf, PAGE_SIZE, "%s\n", dd->lbus_info); +} + + +static ssize_t show_nctxts(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + + /* + * Return the smaller of send and receive contexts. + * Normally, user level applications would require both a send + * and a receive context, so returning the smaller of the two counts + * give a more accurate picture of total contexts available. + */ + return scnprintf(buf, PAGE_SIZE, "%u\n", + min(dd->num_rcv_contexts - dd->first_user_ctxt, + (u32)dd->sc_sizes[SC_USER].count)); +} + +static ssize_t show_nfreectxts(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + + /* Return the number of free user ports (contexts) available. */ + return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts); +} + +static ssize_t show_serial(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + + return scnprintf(buf, PAGE_SIZE, "%s", dd->serial); + +} + +static ssize_t store_chip_reset(struct device *device, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + int ret; + + if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { + ret = -EINVAL; + goto bail; + } + + ret = hfi1_reset_device(dd->unit); +bail: + return ret < 0 ? ret : count; +} + +/* + * Convert the reported temperature from an integer (reported in + * units of 0.25C) to a floating point number. + */ +#define temp2str(temp, buf, size, idx) \ + scnprintf((buf) + (idx), (size) - (idx), "%u.%02u ", \ + ((temp) >> 2), ((temp) & 0x3) * 25) + +/* + * Dump tempsense values, in decimal, to ease shell-scripts. + */ +static ssize_t show_tempsense(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + struct hfi1_temp temp; + int ret = -ENXIO; + + ret = hfi1_tempsense_rd(dd, &temp); + if (!ret) { + int idx = 0; + + idx += temp2str(temp.curr, buf, PAGE_SIZE, idx); + idx += temp2str(temp.lo_lim, buf, PAGE_SIZE, idx); + idx += temp2str(temp.hi_lim, buf, PAGE_SIZE, idx); + idx += temp2str(temp.crit_lim, buf, PAGE_SIZE, idx); + idx += scnprintf(buf + idx, PAGE_SIZE - idx, + "%u %u %u\n", temp.triggers & 0x1, + temp.triggers & 0x2, temp.triggers & 0x4); + ret = idx; + } + return ret; +} + +/* + * end of per-unit (or driver, in some cases, but replicated + * per unit) functions + */ + +/* start of per-unit file structures and support code */ +static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); +static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); +static DEVICE_ATTR(board_id, S_IRUGO, show_hca, NULL); +static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); +static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL); +static DEVICE_ATTR(nfreectxts, S_IRUGO, show_nfreectxts, NULL); +static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL); +static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL); +static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL); +static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL); +static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset); + +static struct device_attribute *hfi1_attributes[] = { + &dev_attr_hw_rev, + &dev_attr_hca_type, + &dev_attr_board_id, + &dev_attr_version, + &dev_attr_nctxts, + &dev_attr_nfreectxts, + &dev_attr_serial, + &dev_attr_boardversion, + &dev_attr_tempsense, + &dev_attr_localbus_info, + &dev_attr_chip_reset, +}; + +int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num, + struct kobject *kobj) +{ + struct hfi1_pportdata *ppd; + struct hfi1_devdata *dd = dd_from_ibdev(ibdev); + int ret; + + if (!port_num || port_num > dd->num_pports) { + dd_dev_err(dd, + "Skipping infiniband class with invalid port %u\n", + port_num); + ret = -ENODEV; + goto bail; + } + ppd = &dd->pport[port_num - 1]; + + ret = kobject_init_and_add(&ppd->pport_kobj, &hfi1_port_ktype, kobj, + "linkcontrol"); + if (ret) { + dd_dev_err(dd, + "Skipping linkcontrol sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail; + } + kobject_uevent(&ppd->pport_kobj, KOBJ_ADD); + + ret = kobject_init_and_add(&ppd->sc2vl_kobj, &hfi1_sc2vl_ktype, kobj, + "sc2vl"); + if (ret) { + dd_dev_err(dd, + "Skipping sc2vl sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail_link; + } + kobject_uevent(&ppd->sc2vl_kobj, KOBJ_ADD); + ret = kobject_init_and_add(&ppd->sl2sc_kobj, &hfi1_sl2sc_ktype, kobj, + "sl2sc"); + if (ret) { + dd_dev_err(dd, + "Skipping sl2sc sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail_link; + } + kobject_uevent(&ppd->sl2sc_kobj, KOBJ_ADD); + + ret = kobject_init_and_add(&ppd->vl2mtu_kobj, &hfi1_vl2mtu_ktype, kobj, + "vl2mtu"); + if (ret) { + dd_dev_err(dd, + "Skipping vl2mtu sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail_sl; + } + kobject_uevent(&ppd->vl2mtu_kobj, KOBJ_ADD); + + ret = kobject_init_and_add(&ppd->diagc_kobj, &diagc_ktype, kobj, + "diag_counters"); + if (ret) { + dd_dev_err(dd, + "Skipping diag_counters sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail_mtu; + } + kobject_uevent(&ppd->diagc_kobj, KOBJ_ADD); + + ret = kobject_init_and_add(&ppd->pport_cc_kobj, &port_cc_ktype, + kobj, "CCMgtA"); + if (ret) { + dd_dev_err(dd, + "Skipping Congestion Control sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail_diagc; + } + + kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD); + + ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, + &cc_setting_bin_attr); + if (ret) { + dd_dev_err(dd, + "Skipping Congestion Control setting sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail_cc; + } + + ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, + &cc_table_bin_attr); + if (ret) { + dd_dev_err(dd, + "Skipping Congestion Control table sysfs info, (err %d) port %u\n", + ret, port_num); + goto bail_cc_entry_bin; + } + + dd_dev_info(dd, + "IB%u: Congestion Control Agent enabled for port %d\n", + dd->unit, port_num); + + return 0; + +bail_cc_entry_bin: + sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr); +bail_cc: + kobject_put(&ppd->pport_cc_kobj); +bail_diagc: + kobject_put(&ppd->diagc_kobj); +bail_mtu: + kobject_put(&ppd->vl2mtu_kobj); +bail_sl: + kobject_put(&ppd->sc2vl_kobj); +bail_link: + kobject_put(&ppd->pport_kobj); +bail: + return ret; +} + +/* + * Register and create our files in /sys/class/infiniband. + */ +int hfi1_verbs_register_sysfs(struct hfi1_devdata *dd) +{ + struct ib_device *dev = &dd->verbs_dev.ibdev; + int i, ret; + + for (i = 0; i < ARRAY_SIZE(hfi1_attributes); ++i) { + ret = device_create_file(&dev->dev, hfi1_attributes[i]); + if (ret) + goto bail; + } + + return 0; +bail: + for (i = 0; i < ARRAY_SIZE(hfi1_attributes); ++i) + device_remove_file(&dev->dev, hfi1_attributes[i]); + return ret; +} + +/* + * Unregister and remove our files in /sys/class/infiniband. + */ +void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *dd) +{ + struct hfi1_pportdata *ppd; + int i; + + for (i = 0; i < dd->num_pports; i++) { + ppd = &dd->pport[i]; + + sysfs_remove_bin_file(&ppd->pport_cc_kobj, + &cc_setting_bin_attr); + sysfs_remove_bin_file(&ppd->pport_cc_kobj, + &cc_table_bin_attr); + kobject_put(&ppd->pport_cc_kobj); + kobject_put(&ppd->vl2mtu_kobj); + kobject_put(&ppd->sc2vl_kobj); + kobject_put(&ppd->pport_kobj); + } +}