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![Mike Marciniszyn](/assets/img/avatar_default.png)
The qib driver load has been failing with the following message:
sysfs: cannot create duplicate filename '/devices/pci0000:80/0000:80:02.0/0000:81:00.0/infiniband/qib0/ports/1/linkcontrol'
The patch below has two "linkcontrol" names causing the duplication.
Fix by using the correct "diag_counters" name on the second instance.
Fixes: 4a7aaf88c8
("RDMA/qib: Use attributes for the port sysfs")
Link: https://lore.kernel.org/r/1645106372-23004-1-git-send-email-mike.marciniszyn@cornelisnetworks.com
Cc: <stable@vger.kernel.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
737 lines
20 KiB
C
737 lines
20 KiB
C
/*
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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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#include "qib.h"
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#include "qib_mad.h"
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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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return &dd->pport[port_num - 1];
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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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return sysfs_emit(buf, "%d\n", dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT));
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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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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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* 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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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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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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return ret;
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}
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static IB_PORT_ATTR_WO(loopback);
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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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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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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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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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if (!ppd->statusp)
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return -EINVAL;
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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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* 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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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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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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/* end of per-port functions */
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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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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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* Start of per-port congestion control structures and support code
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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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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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* 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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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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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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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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/* Start sl2vl */
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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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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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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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/* End sl2vl */
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/* Start diag_counters */
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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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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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return sysfs_emit(buf, "%llu\n", *((u64 *)qibp + dattr->counter));
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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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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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#define QIB_DIAGC_ATTR(N) \
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static_assert(__same_type(((struct qib_ibport *)0)->rvp.n_##N, u64)); \
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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 = \
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offsetof(struct qib_ibport, rvp.n_##N) / sizeof(u64) \
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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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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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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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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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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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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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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);
|
|
struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data;
|
|
|
|
return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_acks,
|
|
get_all_cpu_total(qibp->rvp.rc_acks));
|
|
}
|
|
static IB_PORT_ATTR_RW(rc_acks);
|
|
|
|
static ssize_t rc_qacks_show(struct ib_device *ibdev, u32 port_num,
|
|
struct ib_port_attribute *attr, char *buf)
|
|
{
|
|
struct qib_devdata *dd = dd_from_ibdev(ibdev);
|
|
struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data;
|
|
|
|
return sysfs_emit(buf, "%llu\n",
|
|
get_all_cpu_total(qibp->rvp.rc_qacks) -
|
|
qibp->rvp.z_rc_qacks);
|
|
}
|
|
|
|
static ssize_t rc_qacks_store(struct ib_device *ibdev, u32 port_num,
|
|
struct ib_port_attribute *attr, const char *buf,
|
|
size_t count)
|
|
{
|
|
struct qib_devdata *dd = dd_from_ibdev(ibdev);
|
|
struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data;
|
|
|
|
return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_qacks,
|
|
get_all_cpu_total(qibp->rvp.rc_qacks));
|
|
}
|
|
static IB_PORT_ATTR_RW(rc_qacks);
|
|
|
|
static ssize_t rc_delayed_comp_show(struct ib_device *ibdev, u32 port_num,
|
|
struct ib_port_attribute *attr, char *buf)
|
|
{
|
|
struct qib_devdata *dd = dd_from_ibdev(ibdev);
|
|
struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data;
|
|
|
|
return sysfs_emit(buf, "%llu\n",
|
|
get_all_cpu_total(qibp->rvp.rc_delayed_comp) -
|
|
qibp->rvp.z_rc_delayed_comp);
|
|
}
|
|
|
|
static ssize_t rc_delayed_comp_store(struct ib_device *ibdev, u32 port_num,
|
|
struct ib_port_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct qib_devdata *dd = dd_from_ibdev(ibdev);
|
|
struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data;
|
|
|
|
return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_delayed_comp,
|
|
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 = "diag_counters",
|
|
.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,
|
|
};
|