341 lines
8.9 KiB
C
341 lines
8.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* This software is available to you under a choice of one of two
|
||
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
||
|
|
* General Public License (GPL) Version 2, available from the file
|
||
|
|
* COPYING in the main directory of this source tree, or the
|
||
|
|
* BSD license below:
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or
|
||
|
|
* without modification, are permitted provided that the following
|
||
|
|
* conditions are met:
|
||
|
|
*
|
||
|
|
* - Redistributions of source code must retain the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer.
|
||
|
|
*
|
||
|
|
* - Redistributions in binary form must reproduce the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer in the documentation and/or other materials
|
||
|
|
* provided with the distribution.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
* SOFTWARE.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/errno.h>
|
||
|
|
|
||
|
|
#include <rdma/ib_user_verbs.h>
|
||
|
|
#include <rdma/ib_addr.h>
|
||
|
|
|
||
|
|
#include "usnic_common_util.h"
|
||
|
|
#include "usnic_ib.h"
|
||
|
|
#include "usnic_ib_qp_grp.h"
|
||
|
|
#include "usnic_vnic.h"
|
||
|
|
#include "usnic_ib_verbs.h"
|
||
|
|
#include "usnic_ib_sysfs.h"
|
||
|
|
#include "usnic_log.h"
|
||
|
|
|
||
|
|
static ssize_t usnic_ib_show_board(struct device *device,
|
||
|
|
struct device_attribute *attr,
|
||
|
|
char *buf)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev =
|
||
|
|
container_of(device, struct usnic_ib_dev, ib_dev.dev);
|
||
|
|
unsigned short subsystem_device_id;
|
||
|
|
|
||
|
|
mutex_lock(&us_ibdev->usdev_lock);
|
||
|
|
subsystem_device_id = us_ibdev->pdev->subsystem_device;
|
||
|
|
mutex_unlock(&us_ibdev->usdev_lock);
|
||
|
|
|
||
|
|
return scnprintf(buf, PAGE_SIZE, "%hu\n", subsystem_device_id);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Report the configuration for this PF
|
||
|
|
*/
|
||
|
|
static ssize_t
|
||
|
|
usnic_ib_show_config(struct device *device, struct device_attribute *attr,
|
||
|
|
char *buf)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev;
|
||
|
|
char *ptr;
|
||
|
|
unsigned left;
|
||
|
|
unsigned n;
|
||
|
|
enum usnic_vnic_res_type res_type;
|
||
|
|
|
||
|
|
us_ibdev = container_of(device, struct usnic_ib_dev, ib_dev.dev);
|
||
|
|
|
||
|
|
/* Buffer space limit is 1 page */
|
||
|
|
ptr = buf;
|
||
|
|
left = PAGE_SIZE;
|
||
|
|
|
||
|
|
mutex_lock(&us_ibdev->usdev_lock);
|
||
|
|
if (kref_read(&us_ibdev->vf_cnt) > 0) {
|
||
|
|
char *busname;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* bus name seems to come with annoying prefix.
|
||
|
|
* Remove it if it is predictable
|
||
|
|
*/
|
||
|
|
busname = us_ibdev->pdev->bus->name;
|
||
|
|
if (strncmp(busname, "PCI Bus ", 8) == 0)
|
||
|
|
busname += 8;
|
||
|
|
|
||
|
|
n = scnprintf(ptr, left,
|
||
|
|
"%s: %s:%d.%d, %s, %pM, %u VFs\n Per VF:",
|
||
|
|
us_ibdev->ib_dev.name,
|
||
|
|
busname,
|
||
|
|
PCI_SLOT(us_ibdev->pdev->devfn),
|
||
|
|
PCI_FUNC(us_ibdev->pdev->devfn),
|
||
|
|
netdev_name(us_ibdev->netdev),
|
||
|
|
us_ibdev->ufdev->mac,
|
||
|
|
kref_read(&us_ibdev->vf_cnt));
|
||
|
|
UPDATE_PTR_LEFT(n, ptr, left);
|
||
|
|
|
||
|
|
for (res_type = USNIC_VNIC_RES_TYPE_EOL;
|
||
|
|
res_type < USNIC_VNIC_RES_TYPE_MAX;
|
||
|
|
res_type++) {
|
||
|
|
if (us_ibdev->vf_res_cnt[res_type] == 0)
|
||
|
|
continue;
|
||
|
|
n = scnprintf(ptr, left, " %d %s%s",
|
||
|
|
us_ibdev->vf_res_cnt[res_type],
|
||
|
|
usnic_vnic_res_type_to_str(res_type),
|
||
|
|
(res_type < (USNIC_VNIC_RES_TYPE_MAX - 1)) ?
|
||
|
|
"," : "");
|
||
|
|
UPDATE_PTR_LEFT(n, ptr, left);
|
||
|
|
}
|
||
|
|
n = scnprintf(ptr, left, "\n");
|
||
|
|
UPDATE_PTR_LEFT(n, ptr, left);
|
||
|
|
} else {
|
||
|
|
n = scnprintf(ptr, left, "%s: no VFs\n",
|
||
|
|
us_ibdev->ib_dev.name);
|
||
|
|
UPDATE_PTR_LEFT(n, ptr, left);
|
||
|
|
}
|
||
|
|
mutex_unlock(&us_ibdev->usdev_lock);
|
||
|
|
|
||
|
|
return ptr - buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
static ssize_t
|
||
|
|
usnic_ib_show_iface(struct device *device, struct device_attribute *attr,
|
||
|
|
char *buf)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev;
|
||
|
|
|
||
|
|
us_ibdev = container_of(device, struct usnic_ib_dev, ib_dev.dev);
|
||
|
|
|
||
|
|
return scnprintf(buf, PAGE_SIZE, "%s\n",
|
||
|
|
netdev_name(us_ibdev->netdev));
|
||
|
|
}
|
||
|
|
|
||
|
|
static ssize_t
|
||
|
|
usnic_ib_show_max_vf(struct device *device, struct device_attribute *attr,
|
||
|
|
char *buf)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev;
|
||
|
|
|
||
|
|
us_ibdev = container_of(device, struct usnic_ib_dev, ib_dev.dev);
|
||
|
|
|
||
|
|
return scnprintf(buf, PAGE_SIZE, "%u\n",
|
||
|
|
kref_read(&us_ibdev->vf_cnt));
|
||
|
|
}
|
||
|
|
|
||
|
|
static ssize_t
|
||
|
|
usnic_ib_show_qp_per_vf(struct device *device, struct device_attribute *attr,
|
||
|
|
char *buf)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev;
|
||
|
|
int qp_per_vf;
|
||
|
|
|
||
|
|
us_ibdev = container_of(device, struct usnic_ib_dev, ib_dev.dev);
|
||
|
|
qp_per_vf = max(us_ibdev->vf_res_cnt[USNIC_VNIC_RES_TYPE_WQ],
|
||
|
|
us_ibdev->vf_res_cnt[USNIC_VNIC_RES_TYPE_RQ]);
|
||
|
|
|
||
|
|
return scnprintf(buf, PAGE_SIZE,
|
||
|
|
"%d\n", qp_per_vf);
|
||
|
|
}
|
||
|
|
|
||
|
|
static ssize_t
|
||
|
|
usnic_ib_show_cq_per_vf(struct device *device, struct device_attribute *attr,
|
||
|
|
char *buf)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev;
|
||
|
|
|
||
|
|
us_ibdev = container_of(device, struct usnic_ib_dev, ib_dev.dev);
|
||
|
|
|
||
|
|
return scnprintf(buf, PAGE_SIZE, "%d\n",
|
||
|
|
us_ibdev->vf_res_cnt[USNIC_VNIC_RES_TYPE_CQ]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static DEVICE_ATTR(board_id, S_IRUGO, usnic_ib_show_board, NULL);
|
||
|
|
static DEVICE_ATTR(config, S_IRUGO, usnic_ib_show_config, NULL);
|
||
|
|
static DEVICE_ATTR(iface, S_IRUGO, usnic_ib_show_iface, NULL);
|
||
|
|
static DEVICE_ATTR(max_vf, S_IRUGO, usnic_ib_show_max_vf, NULL);
|
||
|
|
static DEVICE_ATTR(qp_per_vf, S_IRUGO, usnic_ib_show_qp_per_vf, NULL);
|
||
|
|
static DEVICE_ATTR(cq_per_vf, S_IRUGO, usnic_ib_show_cq_per_vf, NULL);
|
||
|
|
|
||
|
|
static struct device_attribute *usnic_class_attributes[] = {
|
||
|
|
&dev_attr_board_id,
|
||
|
|
&dev_attr_config,
|
||
|
|
&dev_attr_iface,
|
||
|
|
&dev_attr_max_vf,
|
||
|
|
&dev_attr_qp_per_vf,
|
||
|
|
&dev_attr_cq_per_vf,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qpn_attribute {
|
||
|
|
struct attribute attr;
|
||
|
|
ssize_t (*show)(struct usnic_ib_qp_grp *, char *buf);
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Definitions for supporting QPN entries in sysfs
|
||
|
|
*/
|
||
|
|
static ssize_t
|
||
|
|
usnic_ib_qpn_attr_show(struct kobject *kobj, struct attribute *attr, char *buf)
|
||
|
|
{
|
||
|
|
struct usnic_ib_qp_grp *qp_grp;
|
||
|
|
struct qpn_attribute *qpn_attr;
|
||
|
|
|
||
|
|
qp_grp = container_of(kobj, struct usnic_ib_qp_grp, kobj);
|
||
|
|
qpn_attr = container_of(attr, struct qpn_attribute, attr);
|
||
|
|
|
||
|
|
return qpn_attr->show(qp_grp, buf);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct sysfs_ops usnic_ib_qpn_sysfs_ops = {
|
||
|
|
.show = usnic_ib_qpn_attr_show
|
||
|
|
};
|
||
|
|
|
||
|
|
#define QPN_ATTR_RO(NAME) \
|
||
|
|
struct qpn_attribute qpn_attr_##NAME = __ATTR_RO(NAME)
|
||
|
|
|
||
|
|
static ssize_t context_show(struct usnic_ib_qp_grp *qp_grp, char *buf)
|
||
|
|
{
|
||
|
|
return scnprintf(buf, PAGE_SIZE, "0x%p\n", qp_grp->ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
static ssize_t summary_show(struct usnic_ib_qp_grp *qp_grp, char *buf)
|
||
|
|
{
|
||
|
|
int i, j, n;
|
||
|
|
int left;
|
||
|
|
char *ptr;
|
||
|
|
struct usnic_vnic_res_chunk *res_chunk;
|
||
|
|
struct usnic_vnic_res *vnic_res;
|
||
|
|
|
||
|
|
left = PAGE_SIZE;
|
||
|
|
ptr = buf;
|
||
|
|
|
||
|
|
n = scnprintf(ptr, left,
|
||
|
|
"QPN: %d State: (%s) PID: %u VF Idx: %hu ",
|
||
|
|
qp_grp->ibqp.qp_num,
|
||
|
|
usnic_ib_qp_grp_state_to_string(qp_grp->state),
|
||
|
|
qp_grp->owner_pid,
|
||
|
|
usnic_vnic_get_index(qp_grp->vf->vnic));
|
||
|
|
UPDATE_PTR_LEFT(n, ptr, left);
|
||
|
|
|
||
|
|
for (i = 0; qp_grp->res_chunk_list[i]; i++) {
|
||
|
|
res_chunk = qp_grp->res_chunk_list[i];
|
||
|
|
for (j = 0; j < res_chunk->cnt; j++) {
|
||
|
|
vnic_res = res_chunk->res[j];
|
||
|
|
n = scnprintf(ptr, left, "%s[%d] ",
|
||
|
|
usnic_vnic_res_type_to_str(vnic_res->type),
|
||
|
|
vnic_res->vnic_idx);
|
||
|
|
UPDATE_PTR_LEFT(n, ptr, left);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
n = scnprintf(ptr, left, "\n");
|
||
|
|
UPDATE_PTR_LEFT(n, ptr, left);
|
||
|
|
|
||
|
|
return ptr - buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
static QPN_ATTR_RO(context);
|
||
|
|
static QPN_ATTR_RO(summary);
|
||
|
|
|
||
|
|
static struct attribute *usnic_ib_qpn_default_attrs[] = {
|
||
|
|
&qpn_attr_context.attr,
|
||
|
|
&qpn_attr_summary.attr,
|
||
|
|
NULL
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct kobj_type usnic_ib_qpn_type = {
|
||
|
|
.sysfs_ops = &usnic_ib_qpn_sysfs_ops,
|
||
|
|
.default_attrs = usnic_ib_qpn_default_attrs
|
||
|
|
};
|
||
|
|
|
||
|
|
int usnic_ib_sysfs_register_usdev(struct usnic_ib_dev *us_ibdev)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
int err;
|
||
|
|
for (i = 0; i < ARRAY_SIZE(usnic_class_attributes); ++i) {
|
||
|
|
err = device_create_file(&us_ibdev->ib_dev.dev,
|
||
|
|
usnic_class_attributes[i]);
|
||
|
|
if (err) {
|
||
|
|
usnic_err("Failed to create device file %d for %s eith err %d",
|
||
|
|
i, us_ibdev->ib_dev.name, err);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* create kernel object for looking at individual QPs */
|
||
|
|
kobject_get(&us_ibdev->ib_dev.dev.kobj);
|
||
|
|
us_ibdev->qpn_kobj = kobject_create_and_add("qpn",
|
||
|
|
&us_ibdev->ib_dev.dev.kobj);
|
||
|
|
if (us_ibdev->qpn_kobj == NULL) {
|
||
|
|
kobject_put(&us_ibdev->ib_dev.dev.kobj);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void usnic_ib_sysfs_unregister_usdev(struct usnic_ib_dev *us_ibdev)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i = 0; i < ARRAY_SIZE(usnic_class_attributes); ++i) {
|
||
|
|
device_remove_file(&us_ibdev->ib_dev.dev,
|
||
|
|
usnic_class_attributes[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
kobject_put(us_ibdev->qpn_kobj);
|
||
|
|
}
|
||
|
|
|
||
|
|
void usnic_ib_sysfs_qpn_add(struct usnic_ib_qp_grp *qp_grp)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
us_ibdev = qp_grp->vf->pf;
|
||
|
|
|
||
|
|
err = kobject_init_and_add(&qp_grp->kobj, &usnic_ib_qpn_type,
|
||
|
|
kobject_get(us_ibdev->qpn_kobj),
|
||
|
|
"%d", qp_grp->grp_id);
|
||
|
|
if (err) {
|
||
|
|
kobject_put(us_ibdev->qpn_kobj);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void usnic_ib_sysfs_qpn_remove(struct usnic_ib_qp_grp *qp_grp)
|
||
|
|
{
|
||
|
|
struct usnic_ib_dev *us_ibdev;
|
||
|
|
|
||
|
|
us_ibdev = qp_grp->vf->pf;
|
||
|
|
|
||
|
|
kobject_put(&qp_grp->kobj);
|
||
|
|
kobject_put(us_ibdev->qpn_kobj);
|
||
|
|
}
|