698 lines
18 KiB
C
698 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause
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/*
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* Copyright(c) 2015-2017 Intel Corporation.
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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 "hfi.h"
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#include "mad.h"
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#include "trace.h"
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static struct hfi1_pportdata *hfi1_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 hfi1_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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* 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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int ret;
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struct hfi1_pportdata *ppd = hfi1_get_pportdata_kobj(kobj);
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struct cc_state *cc_state;
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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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rcu_read_lock();
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cc_state = get_cc_state(ppd);
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if (!cc_state) {
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rcu_read_unlock();
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return -EINVAL;
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}
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memcpy(buf, (void *)&cc_state->cct + pos, count);
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rcu_read_unlock();
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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,
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char *buf, loff_t pos, size_t count)
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{
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struct hfi1_pportdata *ppd = hfi1_get_pportdata_kobj(kobj);
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int ret;
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struct cc_state *cc_state;
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ret = sizeof(struct opa_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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rcu_read_lock();
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cc_state = get_cc_state(ppd);
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if (!cc_state) {
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rcu_read_unlock();
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return -EINVAL;
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}
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memcpy(buf, (void *)&cc_state->cong_setting + pos, count);
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rcu_read_unlock();
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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_cc_bin_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 ssize_t cc_prescan_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 hfi1_devdata *dd = dd_from_ibdev(ibdev);
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struct hfi1_pportdata *ppd = &dd->pport[port_num - 1];
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return sysfs_emit(buf, "%s\n", ppd->cc_prescan ? "on" : "off");
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}
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static ssize_t cc_prescan_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 hfi1_devdata *dd = dd_from_ibdev(ibdev);
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struct hfi1_pportdata *ppd = &dd->pport[port_num - 1];
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if (!memcmp(buf, "on", 2))
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ppd->cc_prescan = true;
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else if (!memcmp(buf, "off", 3))
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ppd->cc_prescan = false;
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return count;
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}
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static IB_PORT_ATTR_ADMIN_RW(cc_prescan);
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static struct attribute *port_cc_attributes[] = {
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&ib_port_attr_cc_prescan.attr,
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NULL
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};
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static const struct attribute_group port_cc_group = {
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.name = "CCMgtA",
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.attrs = port_cc_attributes,
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.bin_attrs = port_cc_bin_attributes,
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};
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/* Start sc2vl */
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struct hfi1_sc2vl_attr {
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struct ib_port_attribute attr;
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int sc;
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};
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static ssize_t sc2vl_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 hfi1_sc2vl_attr *sattr =
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container_of(attr, struct hfi1_sc2vl_attr, attr);
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struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
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return sysfs_emit(buf, "%u\n", *((u8 *)dd->sc2vl + sattr->sc));
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}
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#define HFI1_SC2VL_ATTR(N) \
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static struct hfi1_sc2vl_attr hfi1_sc2vl_attr_##N = { \
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.attr = __ATTR(N, 0444, sc2vl_attr_show, NULL), \
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.sc = N, \
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}
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HFI1_SC2VL_ATTR(0);
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HFI1_SC2VL_ATTR(1);
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HFI1_SC2VL_ATTR(2);
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HFI1_SC2VL_ATTR(3);
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HFI1_SC2VL_ATTR(4);
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HFI1_SC2VL_ATTR(5);
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HFI1_SC2VL_ATTR(6);
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HFI1_SC2VL_ATTR(7);
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HFI1_SC2VL_ATTR(8);
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HFI1_SC2VL_ATTR(9);
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HFI1_SC2VL_ATTR(10);
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HFI1_SC2VL_ATTR(11);
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HFI1_SC2VL_ATTR(12);
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HFI1_SC2VL_ATTR(13);
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HFI1_SC2VL_ATTR(14);
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HFI1_SC2VL_ATTR(15);
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HFI1_SC2VL_ATTR(16);
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HFI1_SC2VL_ATTR(17);
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HFI1_SC2VL_ATTR(18);
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HFI1_SC2VL_ATTR(19);
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HFI1_SC2VL_ATTR(20);
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HFI1_SC2VL_ATTR(21);
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HFI1_SC2VL_ATTR(22);
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HFI1_SC2VL_ATTR(23);
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HFI1_SC2VL_ATTR(24);
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HFI1_SC2VL_ATTR(25);
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HFI1_SC2VL_ATTR(26);
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HFI1_SC2VL_ATTR(27);
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HFI1_SC2VL_ATTR(28);
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HFI1_SC2VL_ATTR(29);
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HFI1_SC2VL_ATTR(30);
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HFI1_SC2VL_ATTR(31);
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static struct attribute *port_sc2vl_attributes[] = {
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&hfi1_sc2vl_attr_0.attr.attr,
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&hfi1_sc2vl_attr_1.attr.attr,
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&hfi1_sc2vl_attr_2.attr.attr,
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&hfi1_sc2vl_attr_3.attr.attr,
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&hfi1_sc2vl_attr_4.attr.attr,
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&hfi1_sc2vl_attr_5.attr.attr,
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&hfi1_sc2vl_attr_6.attr.attr,
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&hfi1_sc2vl_attr_7.attr.attr,
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&hfi1_sc2vl_attr_8.attr.attr,
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&hfi1_sc2vl_attr_9.attr.attr,
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&hfi1_sc2vl_attr_10.attr.attr,
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&hfi1_sc2vl_attr_11.attr.attr,
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&hfi1_sc2vl_attr_12.attr.attr,
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&hfi1_sc2vl_attr_13.attr.attr,
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&hfi1_sc2vl_attr_14.attr.attr,
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&hfi1_sc2vl_attr_15.attr.attr,
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&hfi1_sc2vl_attr_16.attr.attr,
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&hfi1_sc2vl_attr_17.attr.attr,
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&hfi1_sc2vl_attr_18.attr.attr,
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&hfi1_sc2vl_attr_19.attr.attr,
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&hfi1_sc2vl_attr_20.attr.attr,
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&hfi1_sc2vl_attr_21.attr.attr,
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&hfi1_sc2vl_attr_22.attr.attr,
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&hfi1_sc2vl_attr_23.attr.attr,
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&hfi1_sc2vl_attr_24.attr.attr,
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&hfi1_sc2vl_attr_25.attr.attr,
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&hfi1_sc2vl_attr_26.attr.attr,
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&hfi1_sc2vl_attr_27.attr.attr,
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&hfi1_sc2vl_attr_28.attr.attr,
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&hfi1_sc2vl_attr_29.attr.attr,
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&hfi1_sc2vl_attr_30.attr.attr,
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&hfi1_sc2vl_attr_31.attr.attr,
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NULL
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};
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static const struct attribute_group port_sc2vl_group = {
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.name = "sc2vl",
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.attrs = port_sc2vl_attributes,
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};
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/* End sc2vl */
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/* Start sl2sc */
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struct hfi1_sl2sc_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 sl2sc_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 hfi1_sl2sc_attr *sattr =
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container_of(attr, struct hfi1_sl2sc_attr, attr);
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struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
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struct hfi1_ibport *ibp = &dd->pport[port_num - 1].ibport_data;
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return sysfs_emit(buf, "%u\n", ibp->sl_to_sc[sattr->sl]);
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}
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#define HFI1_SL2SC_ATTR(N) \
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static struct hfi1_sl2sc_attr hfi1_sl2sc_attr_##N = { \
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.attr = __ATTR(N, 0444, sl2sc_attr_show, NULL), .sl = N \
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}
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HFI1_SL2SC_ATTR(0);
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HFI1_SL2SC_ATTR(1);
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HFI1_SL2SC_ATTR(2);
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HFI1_SL2SC_ATTR(3);
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HFI1_SL2SC_ATTR(4);
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HFI1_SL2SC_ATTR(5);
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HFI1_SL2SC_ATTR(6);
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HFI1_SL2SC_ATTR(7);
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HFI1_SL2SC_ATTR(8);
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HFI1_SL2SC_ATTR(9);
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HFI1_SL2SC_ATTR(10);
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HFI1_SL2SC_ATTR(11);
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HFI1_SL2SC_ATTR(12);
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HFI1_SL2SC_ATTR(13);
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HFI1_SL2SC_ATTR(14);
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HFI1_SL2SC_ATTR(15);
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HFI1_SL2SC_ATTR(16);
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HFI1_SL2SC_ATTR(17);
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HFI1_SL2SC_ATTR(18);
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HFI1_SL2SC_ATTR(19);
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HFI1_SL2SC_ATTR(20);
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HFI1_SL2SC_ATTR(21);
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HFI1_SL2SC_ATTR(22);
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HFI1_SL2SC_ATTR(23);
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HFI1_SL2SC_ATTR(24);
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HFI1_SL2SC_ATTR(25);
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HFI1_SL2SC_ATTR(26);
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HFI1_SL2SC_ATTR(27);
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HFI1_SL2SC_ATTR(28);
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HFI1_SL2SC_ATTR(29);
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HFI1_SL2SC_ATTR(30);
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HFI1_SL2SC_ATTR(31);
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static struct attribute *port_sl2sc_attributes[] = {
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&hfi1_sl2sc_attr_0.attr.attr,
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&hfi1_sl2sc_attr_1.attr.attr,
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&hfi1_sl2sc_attr_2.attr.attr,
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&hfi1_sl2sc_attr_3.attr.attr,
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&hfi1_sl2sc_attr_4.attr.attr,
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&hfi1_sl2sc_attr_5.attr.attr,
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&hfi1_sl2sc_attr_6.attr.attr,
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&hfi1_sl2sc_attr_7.attr.attr,
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&hfi1_sl2sc_attr_8.attr.attr,
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&hfi1_sl2sc_attr_9.attr.attr,
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&hfi1_sl2sc_attr_10.attr.attr,
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&hfi1_sl2sc_attr_11.attr.attr,
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&hfi1_sl2sc_attr_12.attr.attr,
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&hfi1_sl2sc_attr_13.attr.attr,
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&hfi1_sl2sc_attr_14.attr.attr,
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&hfi1_sl2sc_attr_15.attr.attr,
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&hfi1_sl2sc_attr_16.attr.attr,
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&hfi1_sl2sc_attr_17.attr.attr,
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&hfi1_sl2sc_attr_18.attr.attr,
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&hfi1_sl2sc_attr_19.attr.attr,
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&hfi1_sl2sc_attr_20.attr.attr,
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&hfi1_sl2sc_attr_21.attr.attr,
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&hfi1_sl2sc_attr_22.attr.attr,
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&hfi1_sl2sc_attr_23.attr.attr,
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&hfi1_sl2sc_attr_24.attr.attr,
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&hfi1_sl2sc_attr_25.attr.attr,
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&hfi1_sl2sc_attr_26.attr.attr,
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&hfi1_sl2sc_attr_27.attr.attr,
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&hfi1_sl2sc_attr_28.attr.attr,
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&hfi1_sl2sc_attr_29.attr.attr,
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&hfi1_sl2sc_attr_30.attr.attr,
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&hfi1_sl2sc_attr_31.attr.attr,
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NULL
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};
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static const struct attribute_group port_sl2sc_group = {
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.name = "sl2sc",
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.attrs = port_sl2sc_attributes,
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};
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/* End sl2sc */
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/* Start vl2mtu */
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struct hfi1_vl2mtu_attr {
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struct ib_port_attribute attr;
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int vl;
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};
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static ssize_t vl2mtu_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 hfi1_vl2mtu_attr *vlattr =
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container_of(attr, struct hfi1_vl2mtu_attr, attr);
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struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
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return sysfs_emit(buf, "%u\n", dd->vld[vlattr->vl].mtu);
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}
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#define HFI1_VL2MTU_ATTR(N) \
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static struct hfi1_vl2mtu_attr hfi1_vl2mtu_attr_##N = { \
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.attr = __ATTR(N, 0444, vl2mtu_attr_show, NULL), \
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.vl = N, \
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}
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HFI1_VL2MTU_ATTR(0);
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HFI1_VL2MTU_ATTR(1);
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HFI1_VL2MTU_ATTR(2);
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HFI1_VL2MTU_ATTR(3);
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HFI1_VL2MTU_ATTR(4);
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HFI1_VL2MTU_ATTR(5);
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HFI1_VL2MTU_ATTR(6);
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HFI1_VL2MTU_ATTR(7);
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HFI1_VL2MTU_ATTR(8);
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HFI1_VL2MTU_ATTR(9);
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HFI1_VL2MTU_ATTR(10);
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HFI1_VL2MTU_ATTR(11);
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HFI1_VL2MTU_ATTR(12);
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HFI1_VL2MTU_ATTR(13);
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HFI1_VL2MTU_ATTR(14);
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HFI1_VL2MTU_ATTR(15);
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static struct attribute *port_vl2mtu_attributes[] = {
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&hfi1_vl2mtu_attr_0.attr.attr,
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&hfi1_vl2mtu_attr_1.attr.attr,
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&hfi1_vl2mtu_attr_2.attr.attr,
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&hfi1_vl2mtu_attr_3.attr.attr,
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&hfi1_vl2mtu_attr_4.attr.attr,
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&hfi1_vl2mtu_attr_5.attr.attr,
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&hfi1_vl2mtu_attr_6.attr.attr,
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&hfi1_vl2mtu_attr_7.attr.attr,
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&hfi1_vl2mtu_attr_8.attr.attr,
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&hfi1_vl2mtu_attr_9.attr.attr,
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&hfi1_vl2mtu_attr_10.attr.attr,
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&hfi1_vl2mtu_attr_11.attr.attr,
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&hfi1_vl2mtu_attr_12.attr.attr,
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&hfi1_vl2mtu_attr_13.attr.attr,
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&hfi1_vl2mtu_attr_14.attr.attr,
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&hfi1_vl2mtu_attr_15.attr.attr,
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NULL
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};
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static const struct attribute_group port_vl2mtu_group = {
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.name = "vl2mtu",
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.attrs = port_vl2mtu_attributes,
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};
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/* end of per-port file structures and support code */
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/*
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* Start of per-unit (or driver, in some cases, but replicated
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* per unit) functions (these get a device *)
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*/
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static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr,
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char *buf)
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{
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struct hfi1_ibdev *dev =
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rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
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return sysfs_emit(buf, "%x\n", dd_from_dev(dev)->minrev);
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}
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static DEVICE_ATTR_RO(hw_rev);
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static ssize_t board_id_show(struct device *device,
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struct device_attribute *attr, char *buf)
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{
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struct hfi1_ibdev *dev =
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rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
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struct hfi1_devdata *dd = dd_from_dev(dev);
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if (!dd->boardname)
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return -EINVAL;
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return sysfs_emit(buf, "%s\n", dd->boardname);
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}
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static DEVICE_ATTR_RO(board_id);
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static ssize_t boardversion_show(struct device *device,
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struct device_attribute *attr, char *buf)
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{
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struct hfi1_ibdev *dev =
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rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
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struct hfi1_devdata *dd = dd_from_dev(dev);
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/* The string printed here is already newline-terminated. */
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return sysfs_emit(buf, "%s", dd->boardversion);
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}
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static DEVICE_ATTR_RO(boardversion);
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static ssize_t nctxts_show(struct device *device,
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struct device_attribute *attr, char *buf)
|
|
{
|
|
struct hfi1_ibdev *dev =
|
|
rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
|
|
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 sysfs_emit(buf, "%u\n",
|
|
min(dd->num_user_contexts,
|
|
(u32)dd->sc_sizes[SC_USER].count));
|
|
}
|
|
static DEVICE_ATTR_RO(nctxts);
|
|
|
|
static ssize_t nfreectxts_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct hfi1_ibdev *dev =
|
|
rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
|
|
struct hfi1_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 hfi1_ibdev *dev =
|
|
rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
|
|
struct hfi1_devdata *dd = dd_from_dev(dev);
|
|
|
|
/* dd->serial is already newline terminated in chip.c */
|
|
return sysfs_emit(buf, "%s", 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 hfi1_ibdev *dev =
|
|
rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
|
|
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;
|
|
}
|
|
static DEVICE_ATTR_WO(chip_reset);
|
|
|
|
/*
|
|
* Convert the reported temperature from an integer (reported in
|
|
* units of 0.25C) to a floating point number.
|
|
*/
|
|
#define temp_d(t) ((t) >> 2)
|
|
#define temp_f(t) (((t)&0x3) * 25u)
|
|
|
|
/*
|
|
* Dump tempsense values, in decimal, to ease shell-scripts.
|
|
*/
|
|
static ssize_t tempsense_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct hfi1_ibdev *dev =
|
|
rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev);
|
|
struct hfi1_devdata *dd = dd_from_dev(dev);
|
|
struct hfi1_temp temp;
|
|
int ret;
|
|
|
|
ret = hfi1_tempsense_rd(dd, &temp);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return sysfs_emit(buf, "%u.%02u %u.%02u %u.%02u %u.%02u %u %u %u\n",
|
|
temp_d(temp.curr), temp_f(temp.curr),
|
|
temp_d(temp.lo_lim), temp_f(temp.lo_lim),
|
|
temp_d(temp.hi_lim), temp_f(temp.hi_lim),
|
|
temp_d(temp.crit_lim), temp_f(temp.crit_lim),
|
|
temp.triggers & 0x1,
|
|
temp.triggers & 0x2,
|
|
temp.triggers & 0x4);
|
|
}
|
|
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 *hfi1_attributes[] = {
|
|
&dev_attr_hw_rev.attr,
|
|
&dev_attr_board_id.attr,
|
|
&dev_attr_nctxts.attr,
|
|
&dev_attr_nfreectxts.attr,
|
|
&dev_attr_serial.attr,
|
|
&dev_attr_boardversion.attr,
|
|
&dev_attr_tempsense.attr,
|
|
&dev_attr_chip_reset.attr,
|
|
NULL,
|
|
};
|
|
|
|
const struct attribute_group ib_hfi1_attr_group = {
|
|
.attrs = hfi1_attributes,
|
|
};
|
|
|
|
const struct attribute_group *hfi1_attr_port_groups[] = {
|
|
&port_cc_group,
|
|
&port_sc2vl_group,
|
|
&port_sl2sc_group,
|
|
&port_vl2mtu_group,
|
|
NULL,
|
|
};
|
|
|
|
struct sde_attribute {
|
|
struct attribute attr;
|
|
ssize_t (*show)(struct sdma_engine *sde, char *buf);
|
|
ssize_t (*store)(struct sdma_engine *sde, const char *buf, size_t cnt);
|
|
};
|
|
|
|
static ssize_t sde_show(struct kobject *kobj, struct attribute *attr, char *buf)
|
|
{
|
|
struct sde_attribute *sde_attr =
|
|
container_of(attr, struct sde_attribute, attr);
|
|
struct sdma_engine *sde =
|
|
container_of(kobj, struct sdma_engine, kobj);
|
|
|
|
if (!sde_attr->show)
|
|
return -EINVAL;
|
|
|
|
return sde_attr->show(sde, buf);
|
|
}
|
|
|
|
static ssize_t sde_store(struct kobject *kobj, struct attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sde_attribute *sde_attr =
|
|
container_of(attr, struct sde_attribute, attr);
|
|
struct sdma_engine *sde =
|
|
container_of(kobj, struct sdma_engine, kobj);
|
|
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EPERM;
|
|
|
|
if (!sde_attr->store)
|
|
return -EINVAL;
|
|
|
|
return sde_attr->store(sde, buf, count);
|
|
}
|
|
|
|
static const struct sysfs_ops sde_sysfs_ops = {
|
|
.show = sde_show,
|
|
.store = sde_store,
|
|
};
|
|
|
|
static struct kobj_type sde_ktype = {
|
|
.sysfs_ops = &sde_sysfs_ops,
|
|
};
|
|
|
|
#define SDE_ATTR(_name, _mode, _show, _store) \
|
|
struct sde_attribute sde_attr_##_name = \
|
|
__ATTR(_name, _mode, _show, _store)
|
|
|
|
static ssize_t sde_show_cpu_to_sde_map(struct sdma_engine *sde, char *buf)
|
|
{
|
|
return sdma_get_cpu_to_sde_map(sde, buf);
|
|
}
|
|
|
|
static ssize_t sde_store_cpu_to_sde_map(struct sdma_engine *sde,
|
|
const char *buf, size_t count)
|
|
{
|
|
return sdma_set_cpu_to_sde_map(sde, buf, count);
|
|
}
|
|
|
|
static ssize_t sde_show_vl(struct sdma_engine *sde, char *buf)
|
|
{
|
|
int vl;
|
|
|
|
vl = sdma_engine_get_vl(sde);
|
|
if (vl < 0)
|
|
return vl;
|
|
|
|
return sysfs_emit(buf, "%d\n", vl);
|
|
}
|
|
|
|
static SDE_ATTR(cpu_list, S_IWUSR | S_IRUGO,
|
|
sde_show_cpu_to_sde_map,
|
|
sde_store_cpu_to_sde_map);
|
|
static SDE_ATTR(vl, S_IRUGO, sde_show_vl, NULL);
|
|
|
|
static struct sde_attribute *sde_attribs[] = {
|
|
&sde_attr_cpu_list,
|
|
&sde_attr_vl
|
|
};
|
|
|
|
/*
|
|
* 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.rdi.ibdev;
|
|
struct device *class_dev = &dev->dev;
|
|
int i, j, ret;
|
|
|
|
for (i = 0; i < dd->num_sdma; i++) {
|
|
ret = kobject_init_and_add(&dd->per_sdma[i].kobj,
|
|
&sde_ktype, &class_dev->kobj,
|
|
"sdma%d", i);
|
|
if (ret)
|
|
goto bail;
|
|
|
|
for (j = 0; j < ARRAY_SIZE(sde_attribs); j++) {
|
|
ret = sysfs_create_file(&dd->per_sdma[i].kobj,
|
|
&sde_attribs[j]->attr);
|
|
if (ret)
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
bail:
|
|
/*
|
|
* The function kobject_put() will call kobject_del() if the kobject
|
|
* has been added successfully. The sysfs files created under the
|
|
* kobject directory will also be removed during the process.
|
|
*/
|
|
for (; i >= 0; i--)
|
|
kobject_put(&dd->per_sdma[i].kobj);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Unregister and remove our files in /sys/class/infiniband.
|
|
*/
|
|
void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *dd)
|
|
{
|
|
int i;
|
|
|
|
/* Unwind operations in hfi1_verbs_register_sysfs() */
|
|
for (i = 0; i < dd->num_sdma; i++)
|
|
kobject_put(&dd->per_sdma[i].kobj);
|
|
}
|