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735 lines
20 KiB
735 lines
20 KiB
/* |
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* Copyright (c) 2012 Intel Corporation. All rights reserved. |
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* Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. |
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* Copyright (c) 2006 PathScale, Inc. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#include <linux/ctype.h> |
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#include <rdma/ib_sysfs.h> |
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|
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#include "qib.h" |
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#include "qib_mad.h" |
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|
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static struct qib_pportdata *qib_get_pportdata_kobj(struct kobject *kobj) |
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{ |
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u32 port_num; |
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struct ib_device *ibdev = ib_port_sysfs_get_ibdev_kobj(kobj, &port_num); |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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|
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return &dd->pport[port_num - 1]; |
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} |
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|
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/* |
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* Get/Set heartbeat enable. OR of 1=enabled, 2=auto |
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*/ |
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static ssize_t hrtbt_enable_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_pportdata *ppd = &dd->pport[port_num - 1]; |
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|
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return sysfs_emit(buf, "%d\n", dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT)); |
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} |
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|
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static ssize_t hrtbt_enable_store(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_pportdata *ppd = &dd->pport[port_num - 1]; |
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int ret; |
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u16 val; |
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|
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ret = kstrtou16(buf, 0, &val); |
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if (ret) { |
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qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n"); |
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return ret; |
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} |
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|
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/* |
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* Set the "intentional" heartbeat enable per either of |
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* "Enable" and "Auto", as these are normally set together. |
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* This bit is consulted when leaving loopback mode, |
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* because entering loopback mode overrides it and automatically |
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* disables heartbeat. |
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*/ |
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ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val); |
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return ret < 0 ? ret : count; |
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} |
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static IB_PORT_ATTR_RW(hrtbt_enable); |
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|
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static ssize_t loopback_store(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, const char *buf, |
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size_t count) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_pportdata *ppd = &dd->pport[port_num - 1]; |
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int ret = count, r; |
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|
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r = dd->f_set_ib_loopback(ppd, buf); |
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if (r < 0) |
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ret = r; |
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|
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return ret; |
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} |
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static IB_PORT_ATTR_WO(loopback); |
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|
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static ssize_t led_override_store(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_pportdata *ppd = &dd->pport[port_num - 1]; |
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int ret; |
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u16 val; |
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|
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ret = kstrtou16(buf, 0, &val); |
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if (ret) { |
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qib_dev_err(dd, "attempt to set invalid LED override\n"); |
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return ret; |
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} |
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|
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qib_set_led_override(ppd, val); |
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return count; |
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} |
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static IB_PORT_ATTR_WO(led_override); |
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|
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static ssize_t status_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_pportdata *ppd = &dd->pport[port_num - 1]; |
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|
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if (!ppd->statusp) |
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return -EINVAL; |
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|
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return sysfs_emit(buf, "0x%llx\n", (unsigned long long)*(ppd->statusp)); |
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} |
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static IB_PORT_ATTR_RO(status); |
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|
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/* |
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* For userland compatibility, these offsets must remain fixed. |
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* They are strings for QIB_STATUS_* |
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*/ |
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static const char * const qib_status_str[] = { |
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"Initted", |
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"", |
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"", |
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"", |
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"", |
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"Present", |
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"IB_link_up", |
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"IB_configured", |
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"", |
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"Fatal_Hardware_Error", |
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NULL, |
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}; |
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|
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static ssize_t status_str_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_pportdata *ppd = &dd->pport[port_num - 1]; |
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int i, any; |
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u64 s; |
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ssize_t ret; |
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|
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if (!ppd->statusp) { |
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ret = -EINVAL; |
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goto bail; |
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} |
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s = *(ppd->statusp); |
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*buf = '\0'; |
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for (any = i = 0; s && qib_status_str[i]; i++) { |
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if (s & 1) { |
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/* if overflow */ |
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if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) |
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break; |
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if (strlcat(buf, qib_status_str[i], PAGE_SIZE) >= |
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PAGE_SIZE) |
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break; |
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any = 1; |
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} |
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s >>= 1; |
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} |
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if (any) |
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strlcat(buf, "\n", PAGE_SIZE); |
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ret = strlen(buf); |
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bail: |
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return ret; |
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} |
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static IB_PORT_ATTR_RO(status_str); |
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|
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/* end of per-port functions */ |
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|
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static struct attribute *port_linkcontrol_attributes[] = { |
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&ib_port_attr_loopback.attr, |
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&ib_port_attr_led_override.attr, |
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&ib_port_attr_hrtbt_enable.attr, |
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&ib_port_attr_status.attr, |
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&ib_port_attr_status_str.attr, |
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NULL |
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}; |
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|
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static const struct attribute_group port_linkcontrol_group = { |
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.name = "linkcontrol", |
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.attrs = port_linkcontrol_attributes, |
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}; |
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|
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/* |
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* Start of per-port congestion control structures and support code |
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*/ |
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|
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/* |
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* Congestion control table size followed by table entries |
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*/ |
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static ssize_t cc_table_bin_read(struct file *filp, struct kobject *kobj, |
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struct bin_attribute *bin_attr, char *buf, |
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loff_t pos, size_t count) |
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{ |
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struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); |
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int ret; |
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if (!qib_cc_table_size || !ppd->ccti_entries_shadow) |
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return -EINVAL; |
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ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) |
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+ sizeof(__be16); |
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if (pos > ret) |
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return -EINVAL; |
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if (count > ret - pos) |
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count = ret - pos; |
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|
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if (!count) |
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return count; |
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spin_lock(&ppd->cc_shadow_lock); |
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memcpy(buf, ppd->ccti_entries_shadow, count); |
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spin_unlock(&ppd->cc_shadow_lock); |
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return count; |
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} |
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static BIN_ATTR_RO(cc_table_bin, PAGE_SIZE); |
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|
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/* |
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* Congestion settings: port control, control map and an array of 16 |
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* entries for the congestion entries - increase, timer, event log |
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* trigger threshold and the minimum injection rate delay. |
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*/ |
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static ssize_t cc_setting_bin_read(struct file *filp, struct kobject *kobj, |
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struct bin_attribute *bin_attr, char *buf, |
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loff_t pos, size_t count) |
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{ |
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struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); |
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int ret; |
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if (!qib_cc_table_size || !ppd->congestion_entries_shadow) |
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return -EINVAL; |
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ret = sizeof(struct ib_cc_congestion_setting_attr_shadow); |
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if (pos > ret) |
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return -EINVAL; |
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if (count > ret - pos) |
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count = ret - pos; |
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if (!count) |
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return count; |
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spin_lock(&ppd->cc_shadow_lock); |
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memcpy(buf, ppd->congestion_entries_shadow, count); |
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spin_unlock(&ppd->cc_shadow_lock); |
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return count; |
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} |
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static BIN_ATTR_RO(cc_setting_bin, PAGE_SIZE); |
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|
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static struct bin_attribute *port_ccmgta_attributes[] = { |
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&bin_attr_cc_setting_bin, |
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&bin_attr_cc_table_bin, |
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NULL, |
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}; |
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|
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static umode_t qib_ccmgta_is_bin_visible(struct kobject *kobj, |
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struct bin_attribute *attr, int n) |
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{ |
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struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); |
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|
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if (!qib_cc_table_size || !ppd->congestion_entries_shadow) |
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return 0; |
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return attr->attr.mode; |
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} |
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static const struct attribute_group port_ccmgta_attribute_group = { |
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.name = "CCMgtA", |
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.is_bin_visible = qib_ccmgta_is_bin_visible, |
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.bin_attrs = port_ccmgta_attributes, |
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}; |
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|
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/* Start sl2vl */ |
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|
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struct qib_sl2vl_attr { |
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struct ib_port_attribute attr; |
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int sl; |
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}; |
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static ssize_t sl2vl_attr_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_sl2vl_attr *sattr = |
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container_of(attr, struct qib_sl2vl_attr, attr); |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
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return sysfs_emit(buf, "%u\n", qibp->sl_to_vl[sattr->sl]); |
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} |
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#define QIB_SL2VL_ATTR(N) \ |
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static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \ |
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.attr = __ATTR(N, 0444, sl2vl_attr_show, NULL), \ |
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.sl = N, \ |
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} |
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QIB_SL2VL_ATTR(0); |
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QIB_SL2VL_ATTR(1); |
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QIB_SL2VL_ATTR(2); |
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QIB_SL2VL_ATTR(3); |
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QIB_SL2VL_ATTR(4); |
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QIB_SL2VL_ATTR(5); |
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QIB_SL2VL_ATTR(6); |
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QIB_SL2VL_ATTR(7); |
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QIB_SL2VL_ATTR(8); |
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QIB_SL2VL_ATTR(9); |
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QIB_SL2VL_ATTR(10); |
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QIB_SL2VL_ATTR(11); |
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QIB_SL2VL_ATTR(12); |
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QIB_SL2VL_ATTR(13); |
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QIB_SL2VL_ATTR(14); |
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QIB_SL2VL_ATTR(15); |
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|
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static struct attribute *port_sl2vl_attributes[] = { |
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&qib_sl2vl_attr_0.attr.attr, |
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&qib_sl2vl_attr_1.attr.attr, |
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&qib_sl2vl_attr_2.attr.attr, |
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&qib_sl2vl_attr_3.attr.attr, |
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&qib_sl2vl_attr_4.attr.attr, |
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&qib_sl2vl_attr_5.attr.attr, |
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&qib_sl2vl_attr_6.attr.attr, |
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&qib_sl2vl_attr_7.attr.attr, |
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&qib_sl2vl_attr_8.attr.attr, |
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&qib_sl2vl_attr_9.attr.attr, |
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&qib_sl2vl_attr_10.attr.attr, |
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&qib_sl2vl_attr_11.attr.attr, |
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&qib_sl2vl_attr_12.attr.attr, |
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&qib_sl2vl_attr_13.attr.attr, |
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&qib_sl2vl_attr_14.attr.attr, |
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&qib_sl2vl_attr_15.attr.attr, |
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NULL |
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}; |
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|
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static const struct attribute_group port_sl2vl_group = { |
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.name = "sl2vl", |
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.attrs = port_sl2vl_attributes, |
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}; |
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|
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/* End sl2vl */ |
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|
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/* Start diag_counters */ |
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|
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struct qib_diagc_attr { |
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struct ib_port_attribute attr; |
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size_t counter; |
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}; |
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|
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static ssize_t diagc_attr_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_diagc_attr *dattr = |
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container_of(attr, struct qib_diagc_attr, attr); |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
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|
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return sysfs_emit(buf, "%llu\n", *((u64 *)qibp + dattr->counter)); |
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} |
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|
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static ssize_t diagc_attr_store(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, const char *buf, |
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size_t count) |
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{ |
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struct qib_diagc_attr *dattr = |
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container_of(attr, struct qib_diagc_attr, attr); |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
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u64 val; |
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int ret; |
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|
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ret = kstrtou64(buf, 0, &val); |
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if (ret) |
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return ret; |
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*((u64 *)qibp + dattr->counter) = val; |
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return count; |
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} |
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|
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#define QIB_DIAGC_ATTR(N) \ |
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static struct qib_diagc_attr qib_diagc_attr_##N = { \ |
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.attr = __ATTR(N, 0664, diagc_attr_show, diagc_attr_store), \ |
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.counter = &((struct qib_ibport *)0)->rvp.n_##N - (u64 *)0, \ |
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} |
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|
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QIB_DIAGC_ATTR(rc_resends); |
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QIB_DIAGC_ATTR(seq_naks); |
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QIB_DIAGC_ATTR(rdma_seq); |
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QIB_DIAGC_ATTR(rnr_naks); |
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QIB_DIAGC_ATTR(other_naks); |
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QIB_DIAGC_ATTR(rc_timeouts); |
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QIB_DIAGC_ATTR(loop_pkts); |
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QIB_DIAGC_ATTR(pkt_drops); |
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QIB_DIAGC_ATTR(dmawait); |
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QIB_DIAGC_ATTR(unaligned); |
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QIB_DIAGC_ATTR(rc_dupreq); |
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QIB_DIAGC_ATTR(rc_seqnak); |
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QIB_DIAGC_ATTR(rc_crwaits); |
|
|
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static u64 get_all_cpu_total(u64 __percpu *cntr) |
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{ |
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int cpu; |
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u64 counter = 0; |
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|
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for_each_possible_cpu(cpu) |
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counter += *per_cpu_ptr(cntr, cpu); |
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return counter; |
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} |
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|
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static ssize_t qib_store_per_cpu(struct qib_devdata *dd, const char *buf, |
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size_t count, u64 *zero, u64 cur) |
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{ |
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u32 val; |
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int ret; |
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|
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ret = kstrtou32(buf, 0, &val); |
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if (ret) |
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return ret; |
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if (val != 0) { |
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qib_dev_err(dd, "Per CPU cntrs can only be zeroed"); |
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return count; |
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} |
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*zero = cur; |
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return count; |
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} |
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|
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static ssize_t rc_acks_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
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|
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return sysfs_emit(buf, "%llu\n", |
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get_all_cpu_total(qibp->rvp.rc_acks) - |
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qibp->rvp.z_rc_acks); |
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} |
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|
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static ssize_t rc_acks_store(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, const char *buf, |
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size_t count) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
|
|
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return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_acks, |
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get_all_cpu_total(qibp->rvp.rc_acks)); |
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} |
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static IB_PORT_ATTR_RW(rc_acks); |
|
|
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static ssize_t rc_qacks_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
|
|
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return sysfs_emit(buf, "%llu\n", |
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get_all_cpu_total(qibp->rvp.rc_qacks) - |
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qibp->rvp.z_rc_qacks); |
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} |
|
|
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static ssize_t rc_qacks_store(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, const char *buf, |
|
size_t count) |
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{ |
|
struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
|
|
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return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_qacks, |
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get_all_cpu_total(qibp->rvp.rc_qacks)); |
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} |
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static IB_PORT_ATTR_RW(rc_qacks); |
|
|
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static ssize_t rc_delayed_comp_show(struct ib_device *ibdev, u32 port_num, |
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struct ib_port_attribute *attr, char *buf) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
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struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
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|
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return sysfs_emit(buf, "%llu\n", |
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get_all_cpu_total(qibp->rvp.rc_delayed_comp) - |
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qibp->rvp.z_rc_delayed_comp); |
|
} |
|
|
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static ssize_t rc_delayed_comp_store(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct qib_devdata *dd = dd_from_ibdev(ibdev); |
|
struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; |
|
|
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return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_delayed_comp, |
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get_all_cpu_total(qibp->rvp.rc_delayed_comp)); |
|
} |
|
static IB_PORT_ATTR_RW(rc_delayed_comp); |
|
|
|
static struct attribute *port_diagc_attributes[] = { |
|
&qib_diagc_attr_rc_resends.attr.attr, |
|
&qib_diagc_attr_seq_naks.attr.attr, |
|
&qib_diagc_attr_rdma_seq.attr.attr, |
|
&qib_diagc_attr_rnr_naks.attr.attr, |
|
&qib_diagc_attr_other_naks.attr.attr, |
|
&qib_diagc_attr_rc_timeouts.attr.attr, |
|
&qib_diagc_attr_loop_pkts.attr.attr, |
|
&qib_diagc_attr_pkt_drops.attr.attr, |
|
&qib_diagc_attr_dmawait.attr.attr, |
|
&qib_diagc_attr_unaligned.attr.attr, |
|
&qib_diagc_attr_rc_dupreq.attr.attr, |
|
&qib_diagc_attr_rc_seqnak.attr.attr, |
|
&qib_diagc_attr_rc_crwaits.attr.attr, |
|
&ib_port_attr_rc_acks.attr, |
|
&ib_port_attr_rc_qacks.attr, |
|
&ib_port_attr_rc_delayed_comp.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group port_diagc_group = { |
|
.name = "linkcontrol", |
|
.attrs = port_diagc_attributes, |
|
}; |
|
|
|
/* End diag_counters */ |
|
|
|
const struct attribute_group *qib_attr_port_groups[] = { |
|
&port_linkcontrol_group, |
|
&port_ccmgta_attribute_group, |
|
&port_sl2vl_group, |
|
&port_diagc_group, |
|
NULL, |
|
}; |
|
|
|
/* 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 hw_rev_show(struct device *device, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
|
|
return sysfs_emit(buf, "%x\n", dd_from_dev(dev)->minrev); |
|
} |
|
static DEVICE_ATTR_RO(hw_rev); |
|
|
|
static ssize_t hca_type_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
|
|
if (!dd->boardname) |
|
return -EINVAL; |
|
return sysfs_emit(buf, "%s\n", dd->boardname); |
|
} |
|
static DEVICE_ATTR_RO(hca_type); |
|
static DEVICE_ATTR(board_id, 0444, hca_type_show, NULL); |
|
|
|
static ssize_t version_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
/* The string printed here is already newline-terminated. */ |
|
return sysfs_emit(buf, "%s", (char *)ib_qib_version); |
|
} |
|
static DEVICE_ATTR_RO(version); |
|
|
|
static ssize_t boardversion_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
|
|
/* The string printed here is already newline-terminated. */ |
|
return sysfs_emit(buf, "%s", dd->boardversion); |
|
} |
|
static DEVICE_ATTR_RO(boardversion); |
|
|
|
static ssize_t localbus_info_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
|
|
/* The string printed here is already newline-terminated. */ |
|
return sysfs_emit(buf, "%s", dd->lbus_info); |
|
} |
|
static DEVICE_ATTR_RO(localbus_info); |
|
|
|
static ssize_t nctxts_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
|
|
/* Return the number of user ports (contexts) available. */ |
|
/* The calculation below deals with a special case where |
|
* cfgctxts is set to 1 on a single-port board. */ |
|
return sysfs_emit(buf, "%u\n", |
|
(dd->first_user_ctxt > dd->cfgctxts) ? |
|
0 : |
|
(dd->cfgctxts - dd->first_user_ctxt)); |
|
} |
|
static DEVICE_ATTR_RO(nctxts); |
|
|
|
static ssize_t nfreectxts_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
|
|
/* Return the number of free user ports (contexts) available. */ |
|
return sysfs_emit(buf, "%u\n", dd->freectxts); |
|
} |
|
static DEVICE_ATTR_RO(nfreectxts); |
|
|
|
static ssize_t serial_show(struct device *device, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
const u8 *end = memchr(dd->serial, 0, ARRAY_SIZE(dd->serial)); |
|
int size = end ? end - dd->serial : ARRAY_SIZE(dd->serial); |
|
|
|
return sysfs_emit(buf, ".%*s\n", size, dd->serial); |
|
} |
|
static DEVICE_ATTR_RO(serial); |
|
|
|
static ssize_t chip_reset_store(struct device *device, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
int ret; |
|
|
|
if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { |
|
ret = -EINVAL; |
|
goto bail; |
|
} |
|
|
|
ret = qib_reset_device(dd->unit); |
|
bail: |
|
return ret < 0 ? ret : count; |
|
} |
|
static DEVICE_ATTR_WO(chip_reset); |
|
|
|
/* |
|
* Dump tempsense regs. in decimal, to ease shell-scripts. |
|
*/ |
|
static ssize_t tempsense_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct qib_ibdev *dev = |
|
rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); |
|
struct qib_devdata *dd = dd_from_dev(dev); |
|
int i; |
|
u8 regvals[8]; |
|
|
|
for (i = 0; i < 8; i++) { |
|
int ret; |
|
|
|
if (i == 6) |
|
continue; |
|
ret = dd->f_tempsense_rd(dd, i); |
|
if (ret < 0) |
|
return ret; /* return error on bad read */ |
|
regvals[i] = ret; |
|
} |
|
return sysfs_emit(buf, "%d %d %02X %02X %d %d\n", |
|
(signed char)regvals[0], |
|
(signed char)regvals[1], |
|
regvals[2], |
|
regvals[3], |
|
(signed char)regvals[5], |
|
(signed char)regvals[7]); |
|
} |
|
static DEVICE_ATTR_RO(tempsense); |
|
|
|
/* |
|
* end of per-unit (or driver, in some cases, but replicated |
|
* per unit) functions |
|
*/ |
|
|
|
/* start of per-unit file structures and support code */ |
|
static struct attribute *qib_attributes[] = { |
|
&dev_attr_hw_rev.attr, |
|
&dev_attr_hca_type.attr, |
|
&dev_attr_board_id.attr, |
|
&dev_attr_version.attr, |
|
&dev_attr_nctxts.attr, |
|
&dev_attr_nfreectxts.attr, |
|
&dev_attr_serial.attr, |
|
&dev_attr_boardversion.attr, |
|
&dev_attr_tempsense.attr, |
|
&dev_attr_localbus_info.attr, |
|
&dev_attr_chip_reset.attr, |
|
NULL, |
|
}; |
|
|
|
const struct attribute_group qib_attr_group = { |
|
.attrs = qib_attributes, |
|
};
|
|
|