/*
* Copyright (c) 2010, 2016, Oracle and/or its affiliates. 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
* OpenIB.org 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.
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
/*
* OFED Solaris wrapper
*/
#if defined(__SVR4) && defined(__sun)
#include <stdarg.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/processor.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <sys/param.h>
#include <sys/ib/clients/of/sol_uverbs/sol_uverbs_ioctl.h>
#include <sys/ib/clients/of/sol_umad/sol_umad_ioctl.h>
#include <alloca.h>
#include "../include/infiniband/arch.h"
#include "../include/infiniband/verbs.h"
#include "../include/infiniband/kern-abi.h"
#include "../include/infiniband/driver.h"
#include <errno.h>
#include <pthread.h>
#include <kstat.h>
#define min(a, b) ((a) < (b) ? (a) : (b))
/*
* duplicate ABI definitions for HCAs as the HCA abi headers are not
* installed in proto.
*/
#define RDMA_USER_CM_MIN_ABI_VERSION 3 /* rdma_cma_abi.h */
#define RDMA_USER_CM_MAX_ABI_VERSION 4 /* rdma_cma_abi.h */
/*
* Some useful definitions.
*/
#define HW_DRIVER_MAX_NAME_LEN 20
#define UVERBS_KERNEL_SYSFS_NAME_BASE "uverbs"
#define UMAD_KERNEL_SYSFS_NAME_BASE "umad"
#define IB_HCA_DEVPATH_PREFIX "/dev/infiniband/hca"
#define IB_OFS_DEVPATH_PREFIX "/dev/infiniband/ofs"
#define IB_HCA_DEVPATH_SZ 64
#define MAX_OFS_DEVPATH_LEN 64
#define MAX_HCAS (64*16)
#define MAX_PORTS (MAX_HCAS*2)
/*
* sol_uverbs_drv_status is the status of what libibverbs knows
* about the status of sol_uverbs driver.
*/
#define SOL_UVERBS_DRV_STATUS_UNKNOWN 0x0
#define SOL_UVERBS_DRV_STATUS_LOADED 0x1
#define SOL_UVERBS_DRV_STATUS_UNLOADED 0x02
static kstat_ctl_t *kc = NULL; /* libkstat cookie */
static int sol_uverbs_drv_status = SOL_UVERBS_DRV_STATUS_UNKNOWN;
static int sol_uverbs_minor_dev = -1;
/*
* Some useful definitions.
*/
#define SIZEOF_UVERBS_INFO (sizeof (sol_uverbs_info_t))
#define SIZEOF_HCA_INFO (sizeof (sol_uverbs_hca_info_t))
#define UVERBS_INFO(x) ((sol_uverbs_info_t *)x)
/*
* check_path() prefixs
*/
typedef enum cp_prefix_e {
CP_SOL_UVERBS = 1,
CP_DEVICE = 2,
CP_D = 3,
CP_GIDS = 4,
CP_PKEYS = 5,
CP_PORTS = 6,
CP_UMAD = 7,
CP_SLASH = 8,
CP_SYS = 9,
CP_CLASS = 10,
CP_INFINIBAND_VERBS = 11,
CP_INFINIBAND = 12,
CP_INFINIBAND_MAD = 13,
CP_MISC = 14,
CP_RDMA_CM = 15
} cp_prefix_t;
/*
* Some temporary cache code, until things are cleaned up as part of DR
* work. This will speed up the sysfs emulation.
*/
typedef struct ibdev_cache_info_s {
boolean_t ibd_valid;
uint_t ibd_hw_rev;
uint_t ibd_abi_version;
uint_t ibd_vendor_id;
uint_t ibd_device_id;
char ibd_hca_path[IB_HCA_DEVPATH_SZ];
char ibd_node_guid_str[20];
char ibd_node_guid_external_str[20];
char ibd_sys_image_guid[20];
char ibd_fw_ver[16];
char ibd_name[UVERBS_IBDEV_NAME_SZ];
char ibd_boardid_string[UVERBS_PSID_STR_SZ];
char ibd_devid_string[UVERBS_DEVID_STR_SZ];
} ibdev_cache_info_t;
/* IB device info cache */
static ibdev_cache_info_t ibdev_cache[MAX_HCAS];
static int uverbs_abi_version = -1;
typedef struct umad_cache_info_s {
uint_t umc_valid;
int umc_port;
char umc_ib_dev[16];
} umad_cache_info_t;
static umad_cache_info_t umad_dev_cache[MAX_PORTS];
static int umad_abi_version = -1;
pthread_once_t oneTimeInit = PTHREAD_ONCE_INIT;
static int umad_cache_cnt = 0;
static boolean_t initialized = B_FALSE;
static boolean_t umad_cache_initialized = B_FALSE;
static boolean_t ibdev_cache_initialized = B_FALSE;
static pthread_mutex_t umad_cache_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t ibdev_cache_mutex = PTHREAD_MUTEX_INITIALIZER;
int sol_ibv_query_gid(struct ibv_context *, uint8_t, int, union ibv_gid *);
int sol_ibv_query_pkey(struct ibv_context *, uint8_t, int, uint16_t *);
void __attribute__((constructor))solaris_init(void);
void __attribute__((destructor))solaris_fini(void);
int sol_ibv_query_device(struct ibv_device *device,
struct ibv_device_attr *device_attr);
int sol_ibv_query_port(struct ibv_context *, uint8_t, struct ibv_port_attr *);
void
solaris_init(void)
{
while ((kc = kstat_open()) == NULL) {
if (errno == EAGAIN)
(void) poll(NULL, 0, 200);
else
fprintf(stderr, "cannot open /dev/kstat: %s\n",
strerror(errno));
}
}
void
solaris_fini(void)
{
(void) kstat_close(kc);
}
#define isdigit(c) ((c) >= '0' && (c) <= '9')
/*
* Given a device name of the form <driver-prefix><instance>,
* get the device number. Device name is of the form
* for example:- mlx4_0, mlx4_2 etc. Function will return the device instance
* extracted from the name.
* for example:- mlx4_0 will return 0 and mlx4_2 will return 2.
*/
static int
get_device_num(const char *device_name)
{
const char *temp;
const char *end;
const char *start = device_name;
int len;
int devnum;
if (!start)
return (-1);
len = strlen(device_name);
end = &device_name[len - 1];
for (temp = end; temp >= start && isdigit(*temp); temp--)
/* Null body */;
/*
* Check if the device number is invalid.
*/
if (temp == end || temp < start)
return (-1);
devnum = atoi(temp + 1);
if (devnum < 0 || devnum >= MAX_HCAS)
return (-1);
return (devnum);
}
/*
* For usages where ibdev cache needs to be read based on the IB device
* name instead of uverbs device name a simple compare against the cache
* entries is used to retrieve the corresponding ibdev cache entry.
*/
static ibdev_cache_info_t *
ibdev_cache_read_by_devname(const char *devname)
{
int idx;
ibdev_cache_info_t *cache = NULL;
if (!devname)
return (NULL);
for (idx = 0; idx < MAX_HCAS; idx++) {
cache = &ibdev_cache[idx];
if (strcmp(cache->ibd_name, devname) == 0)
break;
}
/*
* If we failed to find an entry return NULL.
*/
if (idx == MAX_HCAS)
cache = NULL;
return (cache);
}
/*
* Helper function to update the ibdev cache entries with the values obtained
* from the uverbs HCA info ioctl.
*/
static int
ibdev_cache_init()
{
ibdev_cache_info_t *info;
int fd, i, hca_cnt;
char uverbs_devpath[MAX_OFS_DEVPATH_LEN];
sol_uverbs_info_t *uverbs_infop;
sol_uverbs_hca_info_t *hca_infop;
char *buf;
size_t bufsize;
uint16_t major, minor, sub_minor;
uint64_t raw_fw_ver;
uint64_t guid;
snprintf(uverbs_devpath, MAX_OFS_DEVPATH_LEN, "%s/%s%d",
IB_OFS_DEVPATH_PREFIX, UVERBS_KERNEL_SYSFS_NAME_BASE,
sol_uverbs_minor_dev);
/*
* using the first sol_uverbs minor node that can be opened to get
* all the HCA information
*/
if ((fd = open(uverbs_devpath, O_RDWR)) < 0) {
fprintf(stderr, "sol_uverbs failed to open: %s\n",
strerror(errno));
return (-1);
}
bufsize = SIZEOF_UVERBS_INFO + (MAX_HCAS * SIZEOF_HCA_INFO);
buf = malloc(bufsize);
if (!buf) {
fprintf(stderr, "ibdev_cache_update() failed to alloc\n");
close(fd);
return (-1);
}
memset(buf, 0, bufsize);
uverbs_infop = UVERBS_INFO(buf);
uverbs_infop->uverbs_hca_cnt = MAX_HCAS;
if (ioctl(fd, UVERBS_IOCTL_GET_HCA_INFO, uverbs_infop) != 0) {
fprintf(stderr, "sol_uverbs ioctl failed: %s\n",
strerror(errno));
goto error_exit1;
}
if (uverbs_infop->uverbs_solaris_abi_version !=
IB_USER_VERBS_SOLARIS_ABI_VERSION) {
fprintf(stderr, "sol_uverbs solaris_abi_version !="
"IB_USER_VERBS_SOLARIS_ABI_VERSION : %d\n",
uverbs_infop->uverbs_solaris_abi_version);
goto error_exit1;
}
hca_cnt = uverbs_infop->uverbs_hca_cnt; /* hca count returned */
hca_infop = uverbs_infop->uverbs_hca_info;
if (hca_cnt > MAX_HCAS) {
fprintf(stderr, "Number of HCAs returned exceeds max\n");
goto error_exit1;
}
if (uverbs_abi_version == -1)
uverbs_abi_version = uverbs_infop->uverbs_abi_version;
for (i = 0; i < hca_cnt; i++, hca_infop++) {
/*
* Update the cache.
*/
info = &ibdev_cache[hca_infop->uverbs_hca_devidx];
(void) strncpy(info->ibd_name,
hca_infop->uverbs_hca_ibdev_name, UVERBS_IBDEV_NAME_SZ);
guid = hca_infop->uverbs_hca_node_guid;
sprintf(info->ibd_node_guid_str, "%04x:%04x:%04x:%04x",
(unsigned)(guid >> 48) & 0xffff,
(unsigned)(guid >> 32) & 0xffff,
(unsigned)(guid >> 16) & 0xffff,
(unsigned)(guid >> 0) & 0xffff);
guid = hca_infop->uverbs_hca_node_external_guid;
sprintf(info->ibd_node_guid_external_str, "%04x:%04x:%04x:%04x",
(unsigned)(guid >> 48) & 0xffff,
(unsigned)(guid >> 32) & 0xffff,
(unsigned)(guid >> 16) & 0xffff,
(unsigned)(guid >> 0) & 0xffff);
guid = hca_infop->uverbs_hca_sys_image_guid;
sprintf(info->ibd_sys_image_guid, "%04x:%04x:%04x:%04x",
(unsigned)(guid >> 48) & 0xffff,
(unsigned)(guid >> 32) & 0xffff,
(unsigned)(guid >> 16) & 0xffff,
(unsigned)(guid >> 0) & 0xffff);
raw_fw_ver = hca_infop->uverbs_hca_fw_ver;
major = (raw_fw_ver >> 32) & 0xffff;
minor = (raw_fw_ver >> 16) & 0xffff;
sub_minor = raw_fw_ver & 0xffff;
snprintf(info->ibd_fw_ver, sizeof (info->ibd_fw_ver),
"%d.%d.%03d", major, minor, sub_minor);
info->ibd_hw_rev = hca_infop->uverbs_hca_hw_version;
info->ibd_vendor_id = hca_infop->uverbs_hca_vendorid;
info->ibd_device_id = hca_infop->uverbs_hca_deviceid;
info->ibd_abi_version = hca_infop->uverbs_hca_abi_version;
snprintf(info->ibd_hca_path, sizeof (info->ibd_hca_path),
"%s/%s%d", IB_HCA_DEVPATH_PREFIX,
hca_infop->uverbs_hca_driver_name,
hca_infop->uverbs_hca_driver_instance);
strncpy(info->ibd_boardid_string,
hca_infop->uverbs_hca_psid_string, UVERBS_PSID_STR_SZ);
strncpy(info->ibd_devid_string,
hca_infop->uverbs_hca_devid_string, UVERBS_DEVID_STR_SZ);
info->ibd_valid = B_TRUE;
}
free(buf);
close(fd);
return (0);
error_exit1:
free(buf);
close(fd);
return (-1);
}
static int
umad_cache_add(uint_t dev_num, int port, char *ibdev)
{
if ((dev_num >= MAX_PORTS) || (umad_cache_cnt >= MAX_PORTS)) {
fprintf(stderr, "dev %d: exceeds umad cache size\n", dev_num);
return (1);
}
umad_dev_cache[dev_num].umc_port = port;
strcpy(umad_dev_cache[dev_num].umc_ib_dev, ibdev);
umad_dev_cache[dev_num].umc_valid = 1;
umad_cache_cnt++;
return (0);
}
static int
umad_cache_init()
{
int i, fd, minor;
int save_errno = 0;
int port_cnt, bufsize;
char umad_devpath[MAX_OFS_DEVPATH_LEN], *buf;
sol_umad_ioctl_info_t *umad_infop;
sol_umad_ioctl_port_info_t *port_infop;
for (minor = 0; minor < MAX_PORTS; minor++) {
snprintf(umad_devpath, MAX_OFS_DEVPATH_LEN, "%s/%s%d",
IB_OFS_DEVPATH_PREFIX, UMAD_KERNEL_SYSFS_NAME_BASE,
minor);
if ((fd = open(umad_devpath, O_RDWR)) > 0)
break;
if ((! save_errno) && (errno != ENOENT))
save_errno = errno;
}
if ((minor == MAX_PORTS) && (fd < 0)) {
if (! save_errno)
save_errno = errno;
fprintf(stderr, "failed to open sol_umad: %s\n",
strerror(save_errno));
return (-1);
}
bufsize = sizeof (sol_umad_ioctl_info_t) +
(sizeof (sol_umad_ioctl_port_info_t) * MAX_PORTS);
buf = malloc(bufsize);
memset(buf, 0, bufsize);
umad_infop = (sol_umad_ioctl_info_t *)buf;
umad_infop->umad_port_cnt = MAX_PORTS;
if (ioctl(fd, IB_USER_MAD_GET_PORT_INFO, umad_infop) != 0) {
fprintf(stderr, "sol_umad ioctl failed: %s\n",
strerror(errno));
goto error_exit;
}
if (umad_infop->umad_solaris_abi_version !=
IB_USER_MAD_SOLARIS_ABI_VERSION) {
fprintf(stderr, "sol_umad solaris_abi_version !="
"IB_USER_MAD_SOLARIS_ABI_VERSION : %d\n",
umad_infop->umad_solaris_abi_version);
goto error_exit;
}
/*
* set port_cnt to the number of total ports for all HCAs returned
*/
port_cnt = umad_infop->umad_port_cnt;
port_infop = umad_infop->umad_port_info;
if (umad_abi_version == -1)
umad_abi_version = umad_infop->umad_abi_version;
for (i = 0; i < port_cnt; i++, port_infop++) {
if (umad_cache_add(port_infop->umad_port_idx,
port_infop->umad_port_num,
port_infop->umad_port_ibdev_name)) {
fprintf(stderr, "failed to add dev %d to umad cache",
port_infop->umad_port_idx);
goto error_exit;
}
}
free(buf);
close(fd);
return (0);
error_exit:
free(buf);
close(fd);
return (-1);
}
void
initialize(void)
{
int fd, minor;
char uverbs_devpath[MAX_OFS_DEVPATH_LEN];
/*
* find the first sol_uverbs minor node that can be opened successfully
* and set sol_uverbs_mino_dev to that minor no.
*/
for (minor = 0; minor < MAX_HCAS; minor++) {
snprintf(uverbs_devpath, MAX_OFS_DEVPATH_LEN, "%s/%s%d",
IB_OFS_DEVPATH_PREFIX, UVERBS_KERNEL_SYSFS_NAME_BASE,
minor);
if ((fd = open(uverbs_devpath, O_RDWR)) < 0) {
continue;
} else {
sol_uverbs_drv_status = SOL_UVERBS_DRV_STATUS_LOADED;
sol_uverbs_minor_dev = minor;
close(fd);
break;
}
}
/*
* All minor nodes failed to open, so set sol_uverbs_drv_status to
* SOL_UVERBS_DRV_STATUS_UNLOADED to reflect that
*/
if (minor == MAX_HCAS && sol_uverbs_minor_dev == -1) {
sol_uverbs_drv_status = SOL_UVERBS_DRV_STATUS_UNLOADED;
return;
}
memset(&ibdev_cache, 0, (sizeof (ibdev_cache_info_t) * MAX_HCAS));
memset(&umad_dev_cache, 0,
(sizeof (umad_cache_info_t) * MAX_PORTS));
initialized = B_TRUE;
}
/*
* Some sysfs emulation software
*/
/*
* Extract the HCA dev name from the path and remove it from the path.
* Given a path extract the HCA dev name of the form <dev-prefix><dev-instance>
* During parsing the device instance number is validated to make sure it is
* within MAX_HCAS limit, the routine also skips over the duplicate slashes.
*/
static int
check_path_for_hca(char *path, char *device_name)
{
int pos = 0;
int len;
while ((path[pos] != '/') || (path[pos] == '\0'))
pos++;
if (path[pos] != '/')
return (0);
strncpy(device_name, path, (pos + 1));
device_name[pos] = '\0';
if (get_device_num(device_name) < 0)
return (0);
while (path[pos] == '/')
pos++;
len = strlen(path);
memmove(path, &path[pos], (len - pos) + 1);
return (1);
}
/*
* Check whether a path starts with prefix, and if it does, remove it
* from the string. The prefix can also contain one %d scan argument.
*/
static int
check_path(char *path, cp_prefix_t prefix, unsigned int *arg)
{
int ret, pos = 0;
switch (prefix) {
case CP_SOL_UVERBS:
ret = sscanf(path, "uverbs%d%n/", arg,
&pos);
break;
case CP_DEVICE:
ret = sscanf(path, "device%n/", &pos);
break;
case CP_D:
ret = sscanf(path, "%d%n/", arg, &pos);
break;
case CP_GIDS:
ret = sscanf(path, "gids%n/", &pos);
break;
case CP_PKEYS:
ret = sscanf(path, "pkeys%n/", &pos);
break;
case CP_PORTS:
ret = sscanf(path, "ports%n/", &pos);
break;
case CP_UMAD:
ret = sscanf(path, "umad%d%n/", arg, &pos);
break;
case CP_SLASH:
ret = sscanf(path, "%n/", &pos);
break;
case CP_SYS:
ret = sscanf(path, "sys%n/", &pos);
break;
case CP_CLASS:
ret = sscanf(path, "class%n/", &pos);
break;
case CP_INFINIBAND_VERBS:
ret = sscanf(path, "infiniband_verbs%n/", &pos);
break;
case CP_INFINIBAND:
ret = sscanf(path, "infiniband%n/", &pos);
break;
case CP_INFINIBAND_MAD:
ret = sscanf(path, "infiniband_mad%n/", &pos);
break;
case CP_MISC:
ret = sscanf(path, "misc%n/", &pos);
break;
case CP_RDMA_CM:
ret = sscanf(path, "rdma_cm%n/", &pos);
break;
default:
/* Unkown prefix */
return (0);
}
if (path[pos] == '/') {
/* Some requests have several consecutive slashes. */
while (path[pos] == '/')
pos ++;
memmove(path, &path[pos], strlen(path)-pos+1);
return (1);
}
return (0);
}
static ibdev_cache_info_t *
get_device_info(const char *devname)
{
ibdev_cache_info_t *info = NULL;
if (pthread_mutex_lock(&ibdev_cache_mutex) != 0) {
fprintf(stderr, "failed: to acquire ibdev_cache_mutex %s\n",
strerror(errno));
return (NULL);
}
if (ibdev_cache_initialized == B_FALSE) {
if (ibdev_cache_init() != 0) {
(void) pthread_mutex_unlock(&ibdev_cache_mutex);
fprintf(stderr, "failed to init ibdev_cache\n");
return (NULL);
}
ibdev_cache_initialized = B_TRUE;
}
(void) pthread_mutex_unlock(&ibdev_cache_mutex);
info = ibdev_cache_read_by_devname(devname);
return (info);
}
/*
* Get the IB user verbs port info attributes for the specified device/port.
* If the address of a gid pointer is passed for "gid_table", the memory
* will be allocated and the ports gid table and returned as well. The caller
* must free this memory on successful completion. If the address of a
* pkey pointer is passed for "pkey_table", the memory will be allocated
* and the ports pkey table returned as well. The caller must free this
* memory on successful completion.
*/
static int
get_port_info(const char *devname, uint8_t port_num,
struct ibv_port_attr *port_attr, union ibv_gid **gid_table,
uint16_t **pkey_table)
{
struct ibv_device **root_dev_list, **dev_list = NULL;
struct ibv_context ctx;
union ibv_gid *gids = NULL;
uint16_t *pkeys = NULL;
int i, num_dev, rv, ret = 1;
char uverbs_devpath[MAX_OFS_DEVPATH_LEN];
root_dev_list = dev_list = ibv_get_device_list(&num_dev);
if (!dev_list) {
fprintf(stderr, "No HCA devices found\n");
goto error_exit1;
}
for (i = 0; i < num_dev; i++, dev_list++) {
if (strcmp(ibv_get_device_name(*dev_list), devname) == 0) {
break;
}
}
if (i == num_dev) {
fprintf(stderr, "failed to find %s\n", devname);
goto error_exit2;
}
snprintf(uverbs_devpath, MAX_OFS_DEVPATH_LEN, "%s/%s",
IB_OFS_DEVPATH_PREFIX, (*dev_list)->dev_name);
ctx.device = *dev_list;
if ((ctx.cmd_fd = open(uverbs_devpath, O_RDWR)) < 0)
goto error_exit2;
if (sol_ibv_query_port(&ctx, port_num, port_attr)) {
fprintf(stderr, "failed to query dev %p, port %d\n",
&ctx, port_num);
goto error_exit3;
}
if (gid_table) {
*gid_table = NULL;
gids = malloc(sizeof (union ibv_gid) * port_attr->gid_tbl_len);
if (!gids)
goto error_exit3;
/*
* set high bit of port_num to get all gids in one shot.
*/
port_num |= 0x80;
rv = sol_ibv_query_gid(&ctx, port_num, port_attr->gid_tbl_len,
gids);
if (rv != 0)
goto error_exit4;
*gid_table = gids;
gids = NULL;
}
if (pkey_table) {
*pkey_table = NULL;
pkeys = malloc(sizeof (uint16_t) * port_attr->pkey_tbl_len);
if (!pkeys)
goto error_exit4;
/*
* set high bit of port_num to get all pkeys in one shot.
*/
port_num |= 0x80;
rv = sol_ibv_query_pkey(&ctx, port_num, port_attr->pkey_tbl_len,
pkeys);
if (rv != 0)
goto error_exit5;
*pkey_table = pkeys;
pkeys = NULL;
}
ret = 0;
/*
* clean up and Return
*/
error_exit5:
if (pkeys)
free(pkeys);
error_exit4:
if (gids)
free(gids);
error_exit3:
if (ctx.cmd_fd > 0)
close(ctx.cmd_fd);
error_exit2:
if (root_dev_list)
ibv_free_device_list(root_dev_list);
error_exit1:
return (ret);
}
/*
* In Solaris environments, the underlying hardware driver is opened to
* perform the memory mapping operations of kernel allocated memory
* into the users address space.
*/
int
ibv_open_mmap_driver(char *dev_name)
{
int fd;
#ifndef _LP64
int tmpfd;
#endif
int indx;
/*
* Map the user verbs device (uverbs) to the associated
* hca device. ibdev_cache is indexed by uverbs device minor number
* so extracting the index here to refer to the ibdev_cache value,
*/
indx = strtol(dev_name + strlen(UVERBS_KERNEL_SYSFS_NAME_BASE),
NULL, 0);
if (indx >= MAX_HCAS) {
fprintf(stderr, "Invalid device %s\n", dev_name);
goto err_dev;
}
if (!ibdev_cache[indx].ibd_valid) {
fprintf(stderr, "Invalid Device %s\n", dev_name);
goto err_dev;
}
fd = open(ibdev_cache[indx].ibd_hca_path, O_RDWR);
if (fd < 0) {
goto err_dev;
}
#ifndef _LP64
/*
* libc can't handle fd's greater than 255, in order to
* ensure that these values remain available make fd > 255.
* Note: not needed for LP64
*/
tmpfd = fcntl(fd, F_DUPFD, 256);
if (tmpfd >= 0) {
(void) close(fd);
fd = tmpfd;
}
#endif /* _LP64 */
if (fcntl(fd, F_SETFD, FD_CLOEXEC) < 0) {
fprintf(stderr, "FD_CLOEXEC failed: %s\n", strerror(errno));
goto err_close;
}
return (fd);
err_close:
close(fd);
err_dev:
return (-1);
}
static int
infiniband_verbs(char *path, char *buf, size_t size)
{
unsigned int device_num;
int len = -1;
ibdev_cache_info_t *info_p;
if (pthread_mutex_lock(&ibdev_cache_mutex) != 0) {
fprintf(stderr, "failed: to acquire ibdev_cache_mutex %s\n",
strerror(errno));
goto exit;
}
if (ibdev_cache_initialized == B_FALSE) {
if (ibdev_cache_init() == 0)
ibdev_cache_initialized = B_TRUE;
else {
(void) pthread_mutex_unlock(&ibdev_cache_mutex);
#ifdef DEBUG
fprintf(stderr, "failed: to init ibdev cache %s\n",
strerror(errno));
#endif
goto exit;
}
}
(void) pthread_mutex_unlock(&ibdev_cache_mutex);
if (check_path(path, CP_SOL_UVERBS, &device_num)) {
if (device_num >= MAX_HCAS) {
fprintf(stderr, "Invalid path%s\n", path);
goto exit;
}
if (!ibdev_cache[device_num].ibd_valid)
goto exit;
info_p = &ibdev_cache[device_num];
if (check_path(path, CP_DEVICE, NULL)) {
/*
* Under Linux, this is a link to the PCI device entry
* in /sys/devices/pci...../....
*/
if (strcmp(path, "vendor") == 0) {
len = 1 + sprintf(buf, "0x%x",
info_p->ibd_vendor_id);
} else if (strcmp(path, "device") == 0) {
len = 1 + sprintf(buf, "0x%x",
info_p->ibd_device_id);
}
} else if (strcmp(path, "ibdev") == 0) {
len = 1 + sprintf(buf, "%s", info_p->ibd_name);
} else if (strcmp(path, "abi_version") == 0) {
len = 1 + sprintf(buf, "%d", info_p->ibd_abi_version);
}
} else if (strcmp(path, "abi_version") == 0) {
if (uverbs_abi_version == -1) {
fprintf(stderr, "UVerbs ABI Version invalid\n");
goto exit;
}
len = 1 + sprintf(buf, "%d", uverbs_abi_version);
} else {
fprintf(stderr, "Unsupported read: %s\n", path);
}
exit:
return (len);
}
static int
infiniband_ports(char *path, char *buf, size_t size, char *dev_name)
{
int len = -1;
unsigned int port_num;
unsigned int gid_num;
union ibv_gid *gids;
uint64_t subnet_prefix;
uint64_t interface_id;
uint16_t *pkeys;
unsigned int pkey_num;
struct ibv_port_attr port_attr;
float rate;
if (!(check_path(path, CP_D, &port_num)))
goto exit;
if (check_path(path, CP_GIDS, NULL)) {
if (get_port_info(dev_name, port_num, &port_attr, &gids, NULL))
goto exit;
gid_num = atoi(path);
if (gid_num < port_attr.gid_tbl_len) {
subnet_prefix =
htonll(gids[gid_num].global.subnet_prefix);
interface_id =
htonll(gids[gid_num].global.interface_id);
len = 1 + sprintf(buf,
"%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x",
(unsigned)(subnet_prefix >> 48) & 0xffff,
(unsigned)(subnet_prefix >> 32) & 0xffff,
(unsigned)(subnet_prefix >> 16) & 0xffff,
(unsigned)(subnet_prefix >> 0) & 0xffff,
(unsigned)(interface_id >> 48) & 0xffff,
(unsigned)(interface_id >> 32) & 0xffff,
(unsigned)(interface_id >> 16) & 0xffff,
(unsigned)(interface_id >> 0) & 0xffff);
}
if (gids)
free(gids);
} else if (check_path(path, CP_PKEYS, NULL)) {
if (get_port_info(dev_name, port_num, &port_attr, NULL, &pkeys))
goto exit;
pkey_num = atoi(path);
if (pkey_num < port_attr.pkey_tbl_len)
len = 1 + sprintf(buf, "0x%04x", pkeys[pkey_num]);
if (pkeys)
free(pkeys);
} else {
if (get_port_info(dev_name, port_num, &port_attr, NULL, NULL))
goto exit;
if (strcmp(path, "lid_mask_count") == 0) {
len = 1 + sprintf(buf, "%d", port_attr.lmc);
} else if (strcmp(path, "sm_lid") == 0) {
len = 1 + sprintf(buf, "0x%x", port_attr.sm_lid);
} else if (strcmp(path, "sm_sl") == 0) {
len = 1 + sprintf(buf, "%d", port_attr.sm_sl);
} else if (strcmp(path, "lid") == 0) {
len = 1 + sprintf(buf, "0x%x", port_attr.lid);
} else if (strcmp(path, "state") == 0) {
switch (port_attr.state) {
case IBV_PORT_NOP:
len = 1 + sprintf(buf, "%d: NOP",
port_attr.state);
break;
case IBV_PORT_DOWN:
len = 1 + sprintf(buf, "%d: DOWN",
port_attr.state);
break;
case IBV_PORT_INIT:
len = 1 + sprintf(buf, "%d: INIT",
port_attr.state);
break;
case IBV_PORT_ARMED:
len = 1 + sprintf(buf, "%d: ARMED",
port_attr.state);
break;
case IBV_PORT_ACTIVE:
len = 1 + sprintf(buf, "%d: ACTIVE",
port_attr.state);
break;
case IBV_PORT_ACTIVE_DEFER:
len = 1 + sprintf(buf,
"%d: ACTIVE_DEFER",
port_attr.state);
break;
default:
len = 1 + sprintf(buf, "%d: INVALID",
port_attr.state);
break;
}
} else if (strcmp(path, "phys_state") == 0) {
switch (port_attr.phys_state) {
case 1:
len = 1 + sprintf(buf, "%d: Sleep",
port_attr.phys_state);
break;
case 2:
len = 1 + sprintf(buf, "%d: Polling",
port_attr.phys_state);
break;
case 3:
len = 1 + sprintf(buf, "%d: Disabled",
port_attr.phys_state);
break;
case 4:
len = 1 + sprintf(buf,
"%d: PortConfigurationTraining",
port_attr.phys_state);
break;
case 5:
len = 1 + sprintf(buf, "%d: LinkUp",
port_attr.phys_state);
break;
case 6:
len = 1 + sprintf(buf,
"%d: LinkErrorRecovery",
port_attr.phys_state);
break;
case 7:
len = 1 + sprintf(buf,
"%d: Phy Test",
port_attr.phys_state);
break;
default:
len = 1 + sprintf(buf, "%d: <unknown>",
port_attr.phys_state);
break;
}
} else if (strcmp(path, "rate") == 0) {
/* rate = speed * width */
switch (port_attr.active_speed) {
case 1:
rate = 2.5;
break;
case 2:
rate = 5;
break;
case 4:
/* FALLTHROUGH */
case 8:
rate = 10;
break;
case 16:
rate = 14.0625;
break;
case 32:
rate = 25.78125;
break;
default:
rate = 0;
}
switch (port_attr.active_width) {
case 1:
break;
case 2:
rate = 4 * rate;
break;
case 4:
rate = 8 * rate;
break;
case 8:
rate = 12 * rate;
break;
default:
rate = 0;
}
len = 1 + sprintf(buf, "%f", rate);
} else if (strcmp(path, "cap_mask") == 0) {
len = 1 + sprintf(buf, "0x%08x",
port_attr.port_cap_flags);
} else if (strcmp(path, "link_layer") == 0) {
switch (port_attr.link_layer) {
case IBV_LINK_LAYER_UNSPECIFIED:
case IBV_LINK_LAYER_INFINIBAND:
len = 1 + sprintf(buf, "%s", "IB");
break;
case IBV_LINK_LAYER_ETHERNET:
len =
1 + sprintf(buf, "%s", "Ethernet");
break;
default:
len = 1 + sprintf(buf, "%s", "Unknown");
}
}
}
exit:
return (len);
}
static int
infiniband(char *path, char *buf, size_t size)
{
int len = -1;
char dev_name[MAXNAMELEN];
ibdev_cache_info_t *info;
memset(dev_name, 0, MAXNAMELEN);
if (!check_path_for_hca(path, dev_name))
goto exit;
if (check_path(path, CP_PORTS, NULL)) {
len = infiniband_ports(path, buf, size, dev_name);
} else if (strcmp(path, "node_type") == 0) {
len = 1 + sprintf(buf, "%d", IBV_NODE_CA);
} else {
if (!(info = get_device_info(dev_name)))
goto exit;
if (strcmp(path, "node_guid") == 0) {
len = 1 + sprintf(buf, "%s", info->ibd_node_guid_str);
} else if (strcmp(path, "node_guid_external") == 0) {
len = 1 + sprintf(buf, "%s",
info->ibd_node_guid_external_str);
} else if (strcmp(path, "sys_image_guid") == 0) {
len = 1 + sprintf(buf, "%s", info->ibd_sys_image_guid);
} else if (strcmp(path, "fw_ver") == 0) {
len = 1 + sprintf(buf, "%s", info->ibd_fw_ver);
} else if (strcmp(path, "hw_rev") == 0) {
len = 1 + sprintf(buf, "%d", info->ibd_hw_rev);
} else if (strcmp(path, "hca_type") == 0) {
len = 1 + sprintf(buf, "%s", info->ibd_devid_string);
} else if (strcmp(path, "board_id") == 0) {
len = 1 + sprintf(buf, "%s", info->ibd_boardid_string);
}
}
exit:
return (len);
}
static int
infiniband_mad(char *path, char *buf, size_t size)
{
int len = -1;
unsigned int dev_num;
if (pthread_mutex_lock(&umad_cache_mutex) != 0) {
fprintf(stderr, "failed: to acquire umad_cache_mutex %s\n",
strerror(errno));
goto exit;
}
if (umad_cache_initialized == B_FALSE) {
if (umad_cache_init() == 0)
umad_cache_initialized = B_TRUE;
else {
(void) pthread_mutex_unlock(&umad_cache_mutex);
#ifdef DEBUG
fprintf(stderr, "failed: to init umad cache %s\n",
strerror(errno));
#endif
goto exit;
}
}
(void) pthread_mutex_unlock(&umad_cache_mutex);
if (check_path(path, CP_UMAD, &dev_num)) {
if (dev_num >= MAX_PORTS) {
fprintf(stderr, "Invalid Path: %s\n", path);
goto exit;
}
if (!umad_dev_cache[dev_num].umc_valid) {
goto exit;
}
if (strcmp(path, "ibdev") == 0) {
len = strlcpy(buf, umad_dev_cache[dev_num].umc_ib_dev,
size) + 1;
} else if (strcmp(path, "port") == 0) {
len = 1 + sprintf(buf, "%d",
umad_dev_cache[dev_num].umc_port);
}
} else if (strcmp(path, "abi_version") == 0) {
if (umad_abi_version == -1) {
fprintf(stderr, "UMAD ABI Version invalid\n");
goto exit;
}
len =
1 + sprintf(buf, "%d", umad_abi_version);
}
exit:
return (len);
}
/*
* Return -1 on error, or the length of the data (buf) on success.
*/
int
sol_read_sysfs_file(char *path, char *buf, size_t size)
{
int len = -1;
if (!initialized) {
if (pthread_once(&oneTimeInit, initialize)) {
fprintf(stderr, "failed to initialize: %s\n",
strerror(errno));
goto exit;
}
if (!initialized)
/*
* There was a problem in initialize()
*/
goto exit;
}
if (!check_path(path, CP_SLASH, NULL))
goto exit;
if (!check_path(path, CP_SYS, NULL))
goto exit;
if (!check_path(path, CP_CLASS, NULL))
goto exit;
if (check_path(path, CP_INFINIBAND_VERBS, NULL)) {
len = infiniband_verbs(path, buf, size);
} else if (check_path(path, CP_INFINIBAND, NULL)) {
len = infiniband(path, buf, size);
} else if (check_path(path, CP_INFINIBAND_MAD, NULL)) {
len = infiniband_mad(path, buf, size);
} else if (check_path(path, CP_MISC, NULL)) {
if (check_path(path, CP_RDMA_CM, NULL)) {
if (strcmp(path, "abi_version") == 0) {
len = 1 + sprintf(buf, "%d",
RDMA_USER_CM_MAX_ABI_VERSION);
}
}
}
exit:
return (len);
}
int
sol_get_cpu_info(sol_cpu_info_t **info_p)
{
kstat_t *ksp;
kstat_named_t *knp;
uint_t ncpus = 0, i;
sol_cpu_info_t *info;
ncpus = sysconf(_SC_NPROCESSORS_ONLN);
if (ncpus <= 0)
return (0);
if (!(*info_p = malloc(ncpus * sizeof (sol_cpu_info_t))))
return (-1);
info = *info_p;
bzero((void *)info, ncpus * sizeof (sol_cpu_info_t));
for (i = 0; i < ncpus; i++) {
if ((ksp = kstat_lookup(kc, "cpu_info", i, NULL)) == NULL) {
if (i >= ncpus)
goto err_exit;
else
continue;
}
if ((kstat_read(kc, ksp, NULL) == -1)) {
if (i >= ncpus)
goto err_exit;
else
continue;
}
if ((knp = (kstat_named_t *)kstat_data_lookup(ksp, "brand"))
== NULL) {
if (i >= ncpus)
goto err_exit;
else
continue;
}
(void) strlcpy(info[i].cpu_name, knp->value.str.addr.ptr,
knp->value.str.len);
if ((knp = (kstat_named_t *)kstat_data_lookup(ksp, "clock_MHz"))
== NULL) {
if (i >= ncpus)
goto err_exit;
else
continue;
}
info[i].cpu_mhz = knp->value.ui64;
info[i].cpu_number = i;
}
return (ncpus);
err_exit:
free(info);
return (-1);
}
int
sol_get_cpu_stats(sol_cpu_stats_t *stats)
{
size_t i, nr_cpus;
kstat_t *ksp;
kstat_named_t *knp;
memset(stats, 0, sizeof (sol_cpu_stats_t));
nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
/* Aggregate the value of all CPUs */
for (i = 0; i < nr_cpus; i++) {
/*
* In case of some cpu_id doesn't have kstat info.,
* skip it and continue if it isn't the last one.
*/
if ((ksp = kstat_lookup(kc, "cpu", i, "sys")) == NULL) {
if (i >= nr_cpus)
return (-1);
else
continue;
}
if (kstat_read(kc, ksp, NULL) == -1) {
if (i >= nr_cpus)
return (-1);
else
continue;
}
if ((knp = (kstat_named_t *)
kstat_data_lookup(ksp, "cpu_ticks_user")) == NULL) {
if (i >= nr_cpus)
return (-1);
else
continue;
}
stats->t_user += knp->value.ui64;
if ((knp = (kstat_named_t *)
kstat_data_lookup(ksp, "cpu_ticks_kernel")) == NULL) {
if ((knp == NULL) && i >= nr_cpus)
return (-1);
else
continue;
}
stats->t_kernel += knp->value.ui64;
if ((knp = (kstat_named_t *)
kstat_data_lookup(ksp, "cpu_ticks_idle")) == NULL) {
if (i >= nr_cpus)
return (-1);
else
continue;
}
stats->t_idle += knp->value.ui64;
if ((knp = (kstat_named_t *)
kstat_data_lookup(ksp, "cpu_ticks_wait")) == NULL) {
if (i >= nr_cpus)
return (-1);
else
continue;
}
stats->t_iowait += knp->value.ui64;
if ((knp = (kstat_named_t *)
kstat_data_lookup(ksp, "cpu_nsec_intr")) == NULL) {
if (i >= nr_cpus)
return (-1);
else
continue;
}
stats->t_intr += knp->value.ui64; /* This is in NSEC */
}
return (0);
}
int
sol_ibv_query_gid(struct ibv_context *context, uint8_t port_num, int index,
union ibv_gid *gid)
{
int count, start;
sol_uverbs_gid_t *uverbs_gidp;
/*
* Not exported via sysfs, use ioctl.
*/
if (!context || !gid || (index < 0) ||
((port_num & 0x80) && (index == 0)))
return (-1);
if (port_num & 0x80) {
start = 0;
count = index;
} else {
start = index;
count = 1;
}
uverbs_gidp = (sol_uverbs_gid_t *)malloc(count *
sizeof (union ibv_gid) + sizeof (sol_uverbs_gid_t));
if (uverbs_gidp == NULL) {
return (-1);
}
uverbs_gidp->uverbs_port_num = port_num & 0x7F;
uverbs_gidp->uverbs_gid_cnt = count;
uverbs_gidp->uverbs_gid_start_index = start;
if (ioctl(context->cmd_fd, UVERBS_IOCTL_GET_GIDS, uverbs_gidp) != 0) {
#ifdef DEBUG
fprintf(stderr, "UVERBS_IOCTL_GET_GIDS failed: %s\n",
strerror(errno));
#endif
goto gid_error_exit;
}
if (uverbs_gidp->uverbs_solaris_abi_version !=
IB_USER_VERBS_SOLARIS_ABI_VERSION) {
#ifdef DEBUG
fprintf(stderr, "sol_uverbs solaris_abi_version != "
"IB_USER_VERBS_SOLARIS_ABI_VERSION : %d\n",
uverbs_gidp->uverbs_solaris_abi_version);
#endif
goto gid_error_exit;
}
memcpy(gid, uverbs_gidp->uverbs_gids, sizeof (union ibv_gid) * count);
free(uverbs_gidp);
return (0);
gid_error_exit:
free(uverbs_gidp);
return (-1);
}
int
sol_ibv_query_pkey(struct ibv_context *context, uint8_t port_num,
int index, uint16_t *pkey)
{
int count, start;
sol_uverbs_pkey_t *uverbs_pkeyp;
/*
* Not exported via sysfs, use ioctl.
*/
if (!context || !pkey || (index < 0) ||
((port_num & 0x80) && (index == 0)))
return (-1);
if (context->cmd_fd < 0)
return (-1);
if (port_num & 0x80) {
start = 0;
count = index;
} else {
start = index;
count = 1;
}
uverbs_pkeyp = (sol_uverbs_pkey_t *)malloc(count *
sizeof (uint16_t) + sizeof (sol_uverbs_pkey_t));
if (uverbs_pkeyp == NULL) {
return (-1);
}
uverbs_pkeyp->uverbs_port_num = port_num & 0x7F;
uverbs_pkeyp->uverbs_pkey_cnt = count;
uverbs_pkeyp->uverbs_pkey_start_index = start;
if (ioctl(context->cmd_fd, UVERBS_IOCTL_GET_PKEYS, uverbs_pkeyp) != 0) {
#ifdef DEBUG
fprintf(stderr, "UVERBS_IOCTL_GET_PKEYS failed: %s\n",
strerror(errno));
#endif
goto pkey_error_exit;
}
if (uverbs_pkeyp->uverbs_solaris_abi_version !=
IB_USER_VERBS_SOLARIS_ABI_VERSION) {
#ifdef DEBUG
fprintf(stderr, "sol_uverbs solaris_abi_version != "
"IB_USER_VERBS_SOLARIS_ABI_VERSION : %d\n",
uverbs_pkeyp->uverbs_solaris_abi_version);
#endif
goto pkey_error_exit;
}
memcpy(pkey, uverbs_pkeyp->uverbs_pkey, sizeof (uint16_t) * count);
free(uverbs_pkeyp);
return (0);
pkey_error_exit:
free(uverbs_pkeyp);
return (-1);
}
int
sol_ibv_query_device(struct ibv_device *device, struct ibv_device_attr *attr)
{
struct ibv_query_device cmd;
struct ibv_context context;
char uverbs_devpath[MAX_OFS_DEVPATH_LEN];
int ret;
uint64_t raw_fw_ver;
unsigned major, minor, sub_minor;
context.device = device;
if (!device || !attr)
return (-1);
snprintf(uverbs_devpath, MAX_OFS_DEVPATH_LEN, "%s/%s",
IB_OFS_DEVPATH_PREFIX, device->dev_name);
if ((context.cmd_fd = open(uverbs_devpath, O_RDWR)) < 0)
return (-1);
ret = ibv_cmd_query_device(&context, attr, &raw_fw_ver, &cmd,
sizeof (cmd));
if (ret)
return (ret);
major = (raw_fw_ver >> 32) & 0xffff;
minor = (raw_fw_ver >> 16) & 0xffff;
sub_minor = raw_fw_ver & 0xffff;
snprintf(attr->fw_ver, sizeof (attr->fw_ver),
"%d.%d.%03d", major, minor, sub_minor);
close(context.cmd_fd);
return (0);
}
int
sol_ibv_query_port(struct ibv_context *context, uint8_t port,
struct ibv_port_attr *attr)
{
struct ibv_query_port cmd;
return (ibv_cmd_query_port(context, port, attr, &cmd, sizeof (cmd)));
}
#endif