AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-16 01:56:57 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge branch 'rdma-netlink' into k.o/merge-test

Browse Source 
Conflicts:
	include/rdma/ib_verbs.h - Modified a function signature adjacent
	to a newly added function signature from a previous merge

Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Doug Ledford 2017-08-10 14:34:18 -04:00
commit d0d62c34fb
28 changed files with 765 additions and 311 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/infiniband/core/Makefile
View File

@ -11,7 +11,8 @@ ib_core-y := packer.o ud_header.o verbs.o cq.o rw.o sysfs.o \
device.o fmr_pool.o cache.o netlink.o \
roce_gid_mgmt.o mr_pool.o addr.o sa_query.o \
multicast.o mad.o smi.o agent.o mad_rmpp.o \
security.o
security.o nldev.o
ib_core-$(CONFIG_INFINIBAND_USER_MEM) += umem.o
ib_core-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += umem_odp.o umem_rbtree.o
ib_core-$(CONFIG_CGROUP_RDMA) += cgroup.o

12
drivers/infiniband/core/addr.c
View File

@ -129,13 +129,11 @@ static void ib_nl_process_good_ip_rsep(const struct nlmsghdr *nlh)
}
int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
struct netlink_callback *cb)
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh;
if ((nlh->nlmsg_flags & NLM_F_REQUEST) ||
!(NETLINK_CB(skb).sk) ||
!netlink_capable(skb, CAP_NET_ADMIN))
!(NETLINK_CB(skb).sk))
return -EPERM;
if (ib_nl_is_good_ip_resp(nlh))
@ -185,7 +183,7 @@ static int ib_nl_ip_send_msg(struct rdma_dev_addr *dev_addr,
/* Repair the nlmsg header length */
nlmsg_end(skb, nlh);
ibnl_multicast(skb, nlh, RDMA_NL_GROUP_LS, GFP_KERNEL);
rdma_nl_multicast(skb, RDMA_NL_GROUP_LS, GFP_KERNEL);
/* Make the request retry, so when we get the response from userspace
* we will have something.
@ -326,7 +324,7 @@ static void queue_req(struct addr_req *req)
static int ib_nl_fetch_ha(struct dst_entry *dst, struct rdma_dev_addr *dev_addr,
const void *daddr, u32 seq, u16 family)
{
if (ibnl_chk_listeners(RDMA_NL_GROUP_LS))
if (rdma_nl_chk_listeners(RDMA_NL_GROUP_LS))
return -EADDRNOTAVAIL;
/* We fill in what we can, the response will fill the rest */

11
drivers/infiniband/core/cma.c
View File

@ -4458,9 +4458,8 @@ static int cma_get_id_stats(struct sk_buff *skb, struct netlink_callback *cb)
return skb->len;
}
static const struct ibnl_client_cbs cma_cb_table[] = {
[RDMA_NL_RDMA_CM_ID_STATS] = { .dump = cma_get_id_stats,
.module = THIS_MODULE },
static const struct rdma_nl_cbs cma_cb_table[] = {
[RDMA_NL_RDMA_CM_ID_STATS] = { .dump = cma_get_id_stats},
};
static int cma_init_net(struct net *net)
@ -4512,9 +4511,7 @@ static int __init cma_init(void)
if (ret)
goto err;
if (ibnl_add_client(RDMA_NL_RDMA_CM, ARRAY_SIZE(cma_cb_table),
cma_cb_table))
pr_warn("RDMA CMA: failed to add netlink callback\n");
rdma_nl_register(RDMA_NL_RDMA_CM, cma_cb_table);
cma_configfs_init();
return 0;
@ -4531,7 +4528,7 @@ static int __init cma_init(void)
static void __exit cma_cleanup(void)
{
cma_configfs_exit();
ibnl_remove_client(RDMA_NL_RDMA_CM);
rdma_nl_unregister(RDMA_NL_RDMA_CM);
ib_unregister_client(&cma_client);
unregister_netdevice_notifier(&cma_nb);
rdma_addr_unregister_client(&addr_client);

26
drivers/infiniband/core/core_priv.h
View File

@ -103,6 +103,14 @@ void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
roce_netdev_callback cb,
void *cookie);
typedef int (*nldev_callback)(struct ib_device *device,
struct sk_buff *skb,
struct netlink_callback *cb,
unsigned int idx);
int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
struct netlink_callback *cb);
enum ib_cache_gid_default_mode {
IB_CACHE_GID_DEFAULT_MODE_SET,
IB_CACHE_GID_DEFAULT_MODE_DELETE
@ -180,8 +188,8 @@ void ib_mad_cleanup(void);
int ib_sa_init(void);
void ib_sa_cleanup(void);
int ibnl_init(void);
void ibnl_cleanup(void);
int rdma_nl_init(void);
void rdma_nl_exit(void);
/**
* Check if there are any listeners to the netlink group
@ -191,11 +199,14 @@ void ibnl_cleanup(void);
int ibnl_chk_listeners(unsigned int group);
int ib_nl_handle_resolve_resp(struct sk_buff *skb,
struct netlink_callback *cb);
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack);
int ib_nl_handle_set_timeout(struct sk_buff *skb,
struct netlink_callback *cb);
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack);
int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
struct netlink_callback *cb);
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack);
int ib_get_cached_subnet_prefix(struct ib_device *device,
u8 port_num,
@ -302,4 +313,9 @@ static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
return 0;
}
#endif
struct ib_device *__ib_device_get_by_index(u32 ifindex);
/* RDMA device netlink */
void nldev_init(void);
void nldev_exit(void);
#endif /* _CORE_PRIV_H */

119
drivers/infiniband/core/device.c
View File

@ -134,6 +134,17 @@ static int ib_device_check_mandatory(struct ib_device *device)
return 0;
}
struct ib_device *__ib_device_get_by_index(u32 index)
{
struct ib_device *device;
list_for_each_entry(device, &device_list, core_list)
if (device->index == index)
return device;
return NULL;
}
static struct ib_device *__ib_device_get_by_name(const char *name)
{
struct ib_device *device;
@ -145,7 +156,6 @@ static struct ib_device *__ib_device_get_by_name(const char *name)
return NULL;
}
static int alloc_name(char *name)
{
unsigned long *inuse;
@ -326,10 +336,10 @@ static int read_port_immutable(struct ib_device *device)
return 0;
}
void ib_get_device_fw_str(struct ib_device *dev, char *str, size_t str_len)
void ib_get_device_fw_str(struct ib_device *dev, char *str)
{
if (dev->get_dev_fw_str)
dev->get_dev_fw_str(dev, str, str_len);
dev->get_dev_fw_str(dev, str);
else
str[0] = '\0';
}
@ -394,6 +404,30 @@ static int ib_security_change(struct notifier_block *nb, unsigned long event,
return NOTIFY_OK;
}
/**
* __dev_new_index - allocate an device index
*
* Returns a suitable unique value for a new device interface
* number. It assumes that there are less than 2^32-1 ib devices
* will be present in the system.
*/
static u32 __dev_new_index(void)
{
/*
* The device index to allow stable naming.
* Similar to struct net -> ifindex.
*/
static u32 index;
for (;;) {
if (!(++index))
index = 1;
if (!__ib_device_get_by_index(index))
return index;
}
}
/**
* ib_register_device - Register an IB device with IB core
* @device:Device to register
@ -492,6 +526,7 @@ int ib_register_device(struct ib_device *device,
if (client->add && !add_client_context(device, client))
client->add(device);
device->index = __dev_new_index();
down_write(&lists_rwsem);
list_add_tail(&device->core_list, &device_list);
up_write(&lists_rwsem);
@ -892,6 +927,31 @@ void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
up_read(&lists_rwsem);
}
/**
* ib_enum_all_devs - enumerate all ib_devices
* @cb: Callback to call for each found ib_device
*
* Enumerates all ib_devices and calls callback() on each device.
*/
int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
struct netlink_callback *cb)
{
struct ib_device *dev;
unsigned int idx = 0;
int ret = 0;
down_read(&lists_rwsem);
list_for_each_entry(dev, &device_list, core_list) {
ret = nldev_cb(dev, skb, cb, idx);
if (ret)
break;
idx++;
}
up_read(&lists_rwsem);
return ret;
}
/**
* ib_query_pkey - Get P_Key table entry
* @device:Device to query
@ -1086,29 +1146,21 @@ struct net_device *ib_get_net_dev_by_params(struct ib_device *dev,
}
EXPORT_SYMBOL(ib_get_net_dev_by_params);
static struct ibnl_client_cbs ibnl_ls_cb_table[] = {
static const struct rdma_nl_cbs ibnl_ls_cb_table[] = {
[RDMA_NL_LS_OP_RESOLVE] = {
.dump = ib_nl_handle_resolve_resp,
.module = THIS_MODULE },
.doit = ib_nl_handle_resolve_resp,
.flags = RDMA_NL_ADMIN_PERM,
},
[RDMA_NL_LS_OP_SET_TIMEOUT] = {
.dump = ib_nl_handle_set_timeout,
.module = THIS_MODULE },
.doit = ib_nl_handle_set_timeout,
.flags = RDMA_NL_ADMIN_PERM,
},
[RDMA_NL_LS_OP_IP_RESOLVE] = {
.dump = ib_nl_handle_ip_res_resp,
.module = THIS_MODULE },
.doit = ib_nl_handle_ip_res_resp,
.flags = RDMA_NL_ADMIN_PERM,
},
};
static int ib_add_ibnl_clients(void)
{
return ibnl_add_client(RDMA_NL_LS, ARRAY_SIZE(ibnl_ls_cb_table),
ibnl_ls_cb_table);
}
static void ib_remove_ibnl_clients(void)
{
ibnl_remove_client(RDMA_NL_LS);
}
static int __init ib_core_init(void)
{
int ret;
@ -1130,9 +1182,9 @@ static int __init ib_core_init(void)
goto err_comp;
}
ret = ibnl_init();
ret = rdma_nl_init();
if (ret) {
pr_warn("Couldn't init IB netlink interface\n");
pr_warn("Couldn't init IB netlink interface: err %d\n", ret);
goto err_sysfs;
}
@ -1154,24 +1206,18 @@ static int __init ib_core_init(void)
goto err_mad;
}
ret = ib_add_ibnl_clients();
if (ret) {
pr_warn("Couldn't register ibnl clients\n");
goto err_sa;
}
ret = register_lsm_notifier(&ibdev_lsm_nb);
if (ret) {
pr_warn("Couldn't register LSM notifier. ret %d\n", ret);
goto err_ibnl_clients;
goto err_sa;
}
nldev_init();
rdma_nl_register(RDMA_NL_LS, ibnl_ls_cb_table);
ib_cache_setup();
return 0;
err_ibnl_clients:
ib_remove_ibnl_clients();
err_sa:
ib_sa_cleanup();
err_mad:
@ -1179,7 +1225,7 @@ static int __init ib_core_init(void)
err_addr:
addr_cleanup();
err_ibnl:
ibnl_cleanup();
rdma_nl_exit();
err_sysfs:
class_unregister(&ib_class);
err_comp:
@ -1191,13 +1237,14 @@ static int __init ib_core_init(void)
static void __exit ib_core_cleanup(void)
{
unregister_lsm_notifier(&ibdev_lsm_nb);
ib_cache_cleanup();
ib_remove_ibnl_clients();
nldev_exit();
rdma_nl_unregister(RDMA_NL_LS);
unregister_lsm_notifier(&ibdev_lsm_nb);
ib_sa_cleanup();
ib_mad_cleanup();
addr_cleanup();
ibnl_cleanup();
rdma_nl_exit();
class_unregister(&ib_class);
destroy_workqueue(ib_comp_wq);
/* Make sure that any pending umem accounting work is done. */

12
drivers/infiniband/core/iwcm.c
View File

@ -80,7 +80,7 @@ const char *__attribute_const__ iwcm_reject_msg(int reason)
}
EXPORT_SYMBOL(iwcm_reject_msg);
static struct ibnl_client_cbs iwcm_nl_cb_table[] = {
static struct rdma_nl_cbs iwcm_nl_cb_table[] = {
[RDMA_NL_IWPM_REG_PID] = {.dump = iwpm_register_pid_cb},
[RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb},
[RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = iwpm_add_and_query_mapping_cb},
@ -1175,12 +1175,8 @@ static int __init iw_cm_init(void)
ret = iwpm_init(RDMA_NL_IWCM);
if (ret)
pr_err("iw_cm: couldn't init iwpm\n");
ret = ibnl_add_client(RDMA_NL_IWCM, ARRAY_SIZE(iwcm_nl_cb_table),
iwcm_nl_cb_table);
if (ret)
pr_err("iw_cm: couldn't register netlink callbacks\n");
else
rdma_nl_register(RDMA_NL_IWCM, iwcm_nl_cb_table);
iwcm_wq = alloc_ordered_workqueue("iw_cm_wq", WQ_MEM_RECLAIM);
if (!iwcm_wq)
return -ENOMEM;
@ -1200,7 +1196,7 @@ static void __exit iw_cm_cleanup(void)
{
unregister_net_sysctl_table(iwcm_ctl_table_hdr);
destroy_workqueue(iwcm_wq);
ibnl_remove_client(RDMA_NL_IWCM);
rdma_nl_unregister(RDMA_NL_IWCM);
iwpm_exit(RDMA_NL_IWCM);
}

20
drivers/infiniband/core/iwpm_msg.c
View File

@ -42,7 +42,6 @@ int iwpm_valid_pid(void)
{
return iwpm_user_pid > 0;
}
EXPORT_SYMBOL(iwpm_valid_pid);
/*
* iwpm_register_pid - Send a netlink query to user space
@ -104,7 +103,7 @@ int iwpm_register_pid(struct iwpm_dev_data *pm_msg, u8 nl_client)
pr_debug("%s: Multicasting a nlmsg (dev = %s ifname = %s iwpm = %s)\n",
__func__, pm_msg->dev_name, pm_msg->if_name, iwpm_ulib_name);
ret = ibnl_multicast(skb, nlh, RDMA_NL_GROUP_IWPM, GFP_KERNEL);
ret = rdma_nl_multicast(skb, RDMA_NL_GROUP_IWPM, GFP_KERNEL);
if (ret) {
skb = NULL; /* skb is freed in the netlink send-op handling */
iwpm_user_pid = IWPM_PID_UNAVAILABLE;
@ -122,7 +121,6 @@ int iwpm_register_pid(struct iwpm_dev_data *pm_msg, u8 nl_client)
iwpm_free_nlmsg_request(&nlmsg_request->kref);
return ret;
}
EXPORT_SYMBOL(iwpm_register_pid);
/*
* iwpm_add_mapping - Send a netlink add mapping message
@ -174,7 +172,7 @@ int iwpm_add_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client)
goto add_mapping_error;
nlmsg_request->req_buffer = pm_msg;
ret = ibnl_unicast(skb, nlh, iwpm_user_pid);
ret = rdma_nl_unicast_wait(skb, iwpm_user_pid);
if (ret) {
skb = NULL; /* skb is freed in the netlink send-op handling */
iwpm_user_pid = IWPM_PID_UNDEFINED;
@ -191,7 +189,6 @@ int iwpm_add_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client)
iwpm_free_nlmsg_request(&nlmsg_request->kref);
return ret;
}
EXPORT_SYMBOL(iwpm_add_mapping);
/*
* iwpm_add_and_query_mapping - Send a netlink add and query
@ -251,7 +248,7 @@ int iwpm_add_and_query_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client)
goto query_mapping_error;
nlmsg_request->req_buffer = pm_msg;
ret = ibnl_unicast(skb, nlh, iwpm_user_pid);
ret = rdma_nl_unicast_wait(skb, iwpm_user_pid);
if (ret) {
skb = NULL; /* skb is freed in the netlink send-op handling */
err_str = "Unable to send a nlmsg";
@ -267,7 +264,6 @@ int iwpm_add_and_query_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client)
iwpm_free_nlmsg_request(&nlmsg_request->kref);
return ret;
}
EXPORT_SYMBOL(iwpm_add_and_query_mapping);
/*
* iwpm_remove_mapping - Send a netlink remove mapping message
@ -312,7 +308,7 @@ int iwpm_remove_mapping(struct sockaddr_storage *local_addr, u8 nl_client)
if (ret)
goto remove_mapping_error;
ret = ibnl_unicast(skb, nlh, iwpm_user_pid);
ret = rdma_nl_unicast_wait(skb, iwpm_user_pid);
if (ret) {
skb = NULL; /* skb is freed in the netlink send-op handling */
iwpm_user_pid = IWPM_PID_UNDEFINED;
@ -328,7 +324,6 @@ int iwpm_remove_mapping(struct sockaddr_storage *local_addr, u8 nl_client)
dev_kfree_skb_any(skb);
return ret;
}
EXPORT_SYMBOL(iwpm_remove_mapping);
/* netlink attribute policy for the received response to register pid request */
static const struct nla_policy resp_reg_policy[IWPM_NLA_RREG_PID_MAX] = {
@ -397,7 +392,6 @@ int iwpm_register_pid_cb(struct sk_buff *skb, struct netlink_callback *cb)
up(&nlmsg_request->sem);
return 0;
}
EXPORT_SYMBOL(iwpm_register_pid_cb);
/* netlink attribute policy for the received response to add mapping request */
static const struct nla_policy resp_add_policy[IWPM_NLA_RMANAGE_MAPPING_MAX] = {
@ -466,7 +460,6 @@ int iwpm_add_mapping_cb(struct sk_buff *skb, struct netlink_callback *cb)
up(&nlmsg_request->sem);
return 0;
}
EXPORT_SYMBOL(iwpm_add_mapping_cb);
/* netlink attribute policy for the response to add and query mapping request
* and response with remote address info */
@ -558,7 +551,6 @@ int iwpm_add_and_query_mapping_cb(struct sk_buff *skb,
up(&nlmsg_request->sem);
return 0;
}
EXPORT_SYMBOL(iwpm_add_and_query_mapping_cb);
/*
* iwpm_remote_info_cb - Process a port mapper message, containing
@ -627,7 +619,6 @@ int iwpm_remote_info_cb(struct sk_buff *skb, struct netlink_callback *cb)
"remote_info: Mapped remote sockaddr:");
return ret;
}
EXPORT_SYMBOL(iwpm_remote_info_cb);
/* netlink attribute policy for the received request for mapping info */
static const struct nla_policy resp_mapinfo_policy[IWPM_NLA_MAPINFO_REQ_MAX] = {
@ -677,7 +668,6 @@ int iwpm_mapping_info_cb(struct sk_buff *skb, struct netlink_callback *cb)
ret = iwpm_send_mapinfo(nl_client, iwpm_user_pid);
return ret;
}
EXPORT_SYMBOL(iwpm_mapping_info_cb);
/* netlink attribute policy for the received mapping info ack */
static const struct nla_policy ack_mapinfo_policy[IWPM_NLA_MAPINFO_NUM_MAX] = {
@ -707,7 +697,6 @@ int iwpm_ack_mapping_info_cb(struct sk_buff *skb, struct netlink_callback *cb)
atomic_set(&echo_nlmsg_seq, cb->nlh->nlmsg_seq);
return 0;
}
EXPORT_SYMBOL(iwpm_ack_mapping_info_cb);
/* netlink attribute policy for the received port mapper error message */
static const struct nla_policy map_error_policy[IWPM_NLA_ERR_MAX] = {
@ -751,4 +740,3 @@ int iwpm_mapping_error_cb(struct sk_buff *skb, struct netlink_callback *cb)
up(&nlmsg_request->sem);
return 0;
}
EXPORT_SYMBOL(iwpm_mapping_error_cb);

15
drivers/infiniband/core/iwpm_util.c
View File

@ -54,8 +54,6 @@ static struct iwpm_admin_data iwpm_admin;
int iwpm_init(u8 nl_client)
{
int ret = 0;
if (iwpm_valid_client(nl_client))
return -EINVAL;
mutex_lock(&iwpm_admin_lock);
if (atomic_read(&iwpm_admin.refcount) == 0) {
iwpm_hash_bucket = kzalloc(IWPM_MAPINFO_HASH_SIZE *
@ -83,7 +81,6 @@ int iwpm_init(u8 nl_client)
}
return ret;
}
EXPORT_SYMBOL(iwpm_init);
static void free_hash_bucket(void);
static void free_reminfo_bucket(void);
@ -109,7 +106,6 @@ int iwpm_exit(u8 nl_client)
iwpm_set_registration(nl_client, IWPM_REG_UNDEF);
return 0;
}
EXPORT_SYMBOL(iwpm_exit);
static struct hlist_head *get_mapinfo_hash_bucket(struct sockaddr_storage *,
struct sockaddr_storage *);
@ -148,7 +144,6 @@ int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags);
return ret;
}
EXPORT_SYMBOL(iwpm_create_mapinfo);
int iwpm_remove_mapinfo(struct sockaddr_storage *local_sockaddr,
struct sockaddr_storage *mapped_local_addr)
@ -184,7 +179,6 @@ int iwpm_remove_mapinfo(struct sockaddr_storage *local_sockaddr,
spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags);
return ret;
}
EXPORT_SYMBOL(iwpm_remove_mapinfo);
static void free_hash_bucket(void)
{
@ -297,7 +291,6 @@ int iwpm_get_remote_info(struct sockaddr_storage *mapped_loc_addr,
spin_unlock_irqrestore(&iwpm_reminfo_lock, flags);
return ret;
}
EXPORT_SYMBOL(iwpm_get_remote_info);
struct iwpm_nlmsg_request *iwpm_get_nlmsg_request(__u32 nlmsg_seq,
u8 nl_client, gfp_t gfp)
@ -383,15 +376,11 @@ int iwpm_get_nlmsg_seq(void)
int iwpm_valid_client(u8 nl_client)
{
if (nl_client >= RDMA_NL_NUM_CLIENTS)
return 0;
return iwpm_admin.client_list[nl_client];
}
void iwpm_set_valid(u8 nl_client, int valid)
{
if (nl_client >= RDMA_NL_NUM_CLIENTS)
return;
iwpm_admin.client_list[nl_client] = valid;
}
@ -608,7 +597,7 @@ static int send_mapinfo_num(u32 mapping_num, u8 nl_client, int iwpm_pid)
&mapping_num, IWPM_NLA_MAPINFO_SEND_NUM);
if (ret)
goto mapinfo_num_error;
ret = ibnl_unicast(skb, nlh, iwpm_pid);
ret = rdma_nl_unicast(skb, iwpm_pid);
if (ret) {
skb = NULL;
err_str = "Unable to send a nlmsg";
@ -637,7 +626,7 @@ static int send_nlmsg_done(struct sk_buff *skb, u8 nl_client, int iwpm_pid)
return -ENOMEM;
}
nlh->nlmsg_type = NLMSG_DONE;
ret = ibnl_unicast(skb, (struct nlmsghdr *)skb->data, iwpm_pid);
ret = rdma_nl_unicast(skb, iwpm_pid);
if (ret)
pr_warn("%s Unable to send a nlmsg\n", __func__);
return ret;

307
drivers/infiniband/core/netlink.c
View File

@ -1,4 +1,5 @@
/*
* Copyright (c) 2017 Mellanox Technologies Inc. All rights reserved.
* Copyright (c) 2010 Voltaire Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
@ -39,237 +40,253 @@
#include <rdma/rdma_netlink.h>
#include "core_priv.h"
struct ibnl_client {
struct list_head list;
int index;
int nops;
const struct ibnl_client_cbs *cb_table;
};
#include "core_priv.h"
static DEFINE_MUTEX(ibnl_mutex);
static DEFINE_MUTEX(rdma_nl_mutex);
static struct sock *nls;
static LIST_HEAD(client_list);
static struct {
const struct rdma_nl_cbs *cb_table;
} rdma_nl_types[RDMA_NL_NUM_CLIENTS];
int ibnl_chk_listeners(unsigned int group)
int rdma_nl_chk_listeners(unsigned int group)
{
if (netlink_has_listeners(nls, group) == 0)
return -1;
return 0;
return (netlink_has_listeners(nls, group)) ? 0 : -1;
}
EXPORT_SYMBOL(rdma_nl_chk_listeners);
static bool is_nl_msg_valid(unsigned int type, unsigned int op)
{
static const unsigned int max_num_ops[RDMA_NL_NUM_CLIENTS - 1] = {
RDMA_NL_RDMA_CM_NUM_OPS,
RDMA_NL_IWPM_NUM_OPS,
0,
RDMA_NL_LS_NUM_OPS,
RDMA_NLDEV_NUM_OPS };
/*
* This BUILD_BUG_ON is intended to catch addition of new
* RDMA netlink protocol without updating the array above.
*/
BUILD_BUG_ON(RDMA_NL_NUM_CLIENTS != 6);
if (type > RDMA_NL_NUM_CLIENTS - 1)
return false;
return (op < max_num_ops[type - 1]) ? true : false;
}
int ibnl_add_client(int index, int nops,
const struct ibnl_client_cbs cb_table[])
static bool is_nl_valid(unsigned int type, unsigned int op)
{
struct ibnl_client *cur;
struct ibnl_client *nl_client;
const struct rdma_nl_cbs *cb_table;
nl_client = kmalloc(sizeof *nl_client, GFP_KERNEL);
if (!nl_client)
return -ENOMEM;
if (!is_nl_msg_valid(type, op))
return false;
nl_client->index = index;
nl_client->nops = nops;
nl_client->cb_table = cb_table;
cb_table = rdma_nl_types[type].cb_table;
if (!cb_table || (!cb_table[op].dump && !cb_table[op].doit))
return false;
return true;
}
mutex_lock(&ibnl_mutex);
list_for_each_entry(cur, &client_list, list) {
if (cur->index == index) {
pr_warn("Client for %d already exists\n", index);
mutex_unlock(&ibnl_mutex);
kfree(nl_client);
return -EINVAL;
}
void rdma_nl_register(unsigned int index,
const struct rdma_nl_cbs cb_table[])
{
mutex_lock(&rdma_nl_mutex);
if (!is_nl_msg_valid(index, 0)) {
/*
* All clients are not interesting in success/failure of
* this call. They want to see the print to error log and
* continue their initialization. Print warning for them,
* because it is programmer's error to be here.
*/
mutex_unlock(&rdma_nl_mutex);
WARN(true,
"The not-valid %u index was supplied to RDMA netlink\n",
index);
return;
}
list_add_tail(&nl_client->list, &client_list);
mutex_unlock(&ibnl_mutex);
return 0;
}
EXPORT_SYMBOL(ibnl_add_client);
int ibnl_remove_client(int index)
{
struct ibnl_client *cur, *next;
mutex_lock(&ibnl_mutex);
list_for_each_entry_safe(cur, next, &client_list, list) {
if (cur->index == index) {
list_del(&(cur->list));
mutex_unlock(&ibnl_mutex);
kfree(cur);
return 0;
}
if (rdma_nl_types[index].cb_table) {
mutex_unlock(&rdma_nl_mutex);
WARN(true,
"The %u index is already registered in RDMA netlink\n",
index);
return;
}
pr_warn("Can't remove callback for client idx %d. Not found\n", index);
mutex_unlock(&ibnl_mutex);
return -EINVAL;
rdma_nl_types[index].cb_table = cb_table;
mutex_unlock(&rdma_nl_mutex);
}
EXPORT_SYMBOL(ibnl_remove_client);
EXPORT_SYMBOL(rdma_nl_register);
void rdma_nl_unregister(unsigned int index)
{
mutex_lock(&rdma_nl_mutex);
rdma_nl_types[index].cb_table = NULL;
mutex_unlock(&rdma_nl_mutex);
}
EXPORT_SYMBOL(rdma_nl_unregister);
void *ibnl_put_msg(struct sk_buff *skb, struct nlmsghdr **nlh, int seq,
int len, int client, int op, int flags)
{
unsigned char *prev_tail;
prev_tail = skb_tail_pointer(skb);
*nlh = nlmsg_put(skb, 0, seq, RDMA_NL_GET_TYPE(client, op),
len, flags);
*nlh = nlmsg_put(skb, 0, seq, RDMA_NL_GET_TYPE(client, op), len, flags);
if (!*nlh)
goto out_nlmsg_trim;
(*nlh)->nlmsg_len = skb_tail_pointer(skb) - prev_tail;
return NULL;
return nlmsg_data(*nlh);
out_nlmsg_trim:
nlmsg_trim(skb, prev_tail);
return NULL;
}
EXPORT_SYMBOL(ibnl_put_msg);
int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,
int len, void *data, int type)
{
unsigned char *prev_tail;
prev_tail = skb_tail_pointer(skb);
if (nla_put(skb, type, len, data))
goto nla_put_failure;
nlh->nlmsg_len += skb_tail_pointer(skb) - prev_tail;
if (nla_put(skb, type, len, data)) {
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
return 0;
nla_put_failure:
nlmsg_trim(skb, prev_tail - nlh->nlmsg_len);
return -EMSGSIZE;
}
EXPORT_SYMBOL(ibnl_put_attr);
static int ibnl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
static int rdma_nl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
struct ibnl_client *client;
int type = nlh->nlmsg_type;
int index = RDMA_NL_GET_CLIENT(type);
unsigned int index = RDMA_NL_GET_CLIENT(type);
unsigned int op = RDMA_NL_GET_OP(type);
const struct rdma_nl_cbs *cb_table;
list_for_each_entry(client, &client_list, list) {
if (client->index == index) {
if (op >= client->nops || !client->cb_table[op].dump)
return -EINVAL;
if (!is_nl_valid(index, op))
return -EINVAL;
/*
* For response or local service set_timeout request,
* there is no need to use netlink_dump_start.
*/
if (!(nlh->nlmsg_flags & NLM_F_REQUEST) ||
(index == RDMA_NL_LS &&
op == RDMA_NL_LS_OP_SET_TIMEOUT)) {
struct netlink_callback cb = {
.skb = skb,
.nlh = nlh,
.dump = client->cb_table[op].dump,
.module = client->cb_table[op].module,
};
cb_table = rdma_nl_types[index].cb_table;
return cb.dump(skb, &cb);
}
if ((cb_table[op].flags & RDMA_NL_ADMIN_PERM) &&
!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;
{
struct netlink_dump_control c = {
.dump = client->cb_table[op].dump,
.module = client->cb_table[op].module,
};
return netlink_dump_start(nls, skb, nlh, &c);
}
}
/* FIXME: Convert IWCM to properly handle doit callbacks */
if ((nlh->nlmsg_flags & NLM_F_DUMP) || index == RDMA_NL_RDMA_CM ||
index == RDMA_NL_IWCM) {
struct netlink_dump_control c = {
.dump = cb_table[op].dump,
};
return netlink_dump_start(nls, skb, nlh, &c);
}
pr_info("Index %d wasn't found in client list\n", index);
return -EINVAL;
if (cb_table[op].doit)
return cb_table[op].doit(skb, nlh, extack);
return 0;
}
static void ibnl_rcv_reply_skb(struct sk_buff *skb)
/*
* This function is similar to netlink_rcv_skb with one exception:
* It calls to the callback for the netlink messages without NLM_F_REQUEST
* flag. These messages are intended for RDMA_NL_LS consumer, so it is allowed
* for that consumer only.
*/
static int rdma_nl_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *,
struct nlmsghdr *,
struct netlink_ext_ack *))
{
struct netlink_ext_ack extack = {};
struct nlmsghdr *nlh;
int msglen;
int err;
/*
* Process responses until there is no more message or the first
* request. Generally speaking, it is not recommended to mix responses
* with requests.
*/
while (skb->len >= nlmsg_total_size(0)) {
int msglen;
nlh = nlmsg_hdr(skb);
err = 0;
if (nlh->nlmsg_len < NLMSG_HDRLEN || skb->len < nlh->nlmsg_len)
return;
return 0;
/* Handle response only */
if (nlh->nlmsg_flags & NLM_F_REQUEST)
return;
/*
* Generally speaking, the only requests are handled
* by the kernel, but RDMA_NL_LS is different, because it
* runs backward netlink scheme. Kernel initiates messages
* and waits for reply with data to keep pathrecord cache
* in sync.
*/
if (!(nlh->nlmsg_flags & NLM_F_REQUEST) &&
(RDMA_NL_GET_CLIENT(nlh->nlmsg_type) != RDMA_NL_LS))
goto ack;
ibnl_rcv_msg(skb, nlh, NULL);
/* Skip control messages */
if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
goto ack;
err = cb(skb, nlh, &extack);
if (err == -EINTR)
goto skip;
ack:
if (nlh->nlmsg_flags & NLM_F_ACK || err)
netlink_ack(skb, nlh, err, &extack);
skip:
msglen = NLMSG_ALIGN(nlh->nlmsg_len);
if (msglen > skb->len)
msglen = skb->len;
skb_pull(skb, msglen);
}
return 0;
}
static void ibnl_rcv(struct sk_buff *skb)
static void rdma_nl_rcv(struct sk_buff *skb)
{
mutex_lock(&ibnl_mutex);
ibnl_rcv_reply_skb(skb);
netlink_rcv_skb(skb, &ibnl_rcv_msg);
mutex_unlock(&ibnl_mutex);
mutex_lock(&rdma_nl_mutex);
rdma_nl_rcv_skb(skb, &rdma_nl_rcv_msg);
mutex_unlock(&rdma_nl_mutex);
}
int ibnl_unicast(struct sk_buff *skb, struct nlmsghdr *nlh,
__u32 pid)
int rdma_nl_unicast(struct sk_buff *skb, u32 pid)
{
int err;
err = netlink_unicast(nls, skb, pid, MSG_DONTWAIT);
return (err < 0) ? err : 0;
}
EXPORT_SYMBOL(rdma_nl_unicast);
int rdma_nl_unicast_wait(struct sk_buff *skb, __u32 pid)
{
int err;
err = netlink_unicast(nls, skb, pid, 0);
return (err < 0) ? err : 0;
}
EXPORT_SYMBOL(ibnl_unicast);
EXPORT_SYMBOL(rdma_nl_unicast_wait);
int ibnl_multicast(struct sk_buff *skb, struct nlmsghdr *nlh,
unsigned int group, gfp_t flags)
int rdma_nl_multicast(struct sk_buff *skb, unsigned int group, gfp_t flags)
{
return nlmsg_multicast(nls, skb, 0, group, flags);
}
EXPORT_SYMBOL(ibnl_multicast);
EXPORT_SYMBOL(rdma_nl_multicast);
int __init ibnl_init(void)
int __init rdma_nl_init(void)
{
struct netlink_kernel_cfg cfg = {
.input = ibnl_rcv,
.input = rdma_nl_rcv,
};
nls = netlink_kernel_create(&init_net, NETLINK_RDMA, &cfg);
if (!nls) {
pr_warn("Failed to create netlink socket\n");
if (!nls)
return -ENOMEM;
}
nls->sk_sndtimeo = 10 * HZ;
return 0;
}
void ibnl_cleanup(void)
void rdma_nl_exit(void)
{
struct ibnl_client *cur, *next;
int idx;
mutex_lock(&ibnl_mutex);
list_for_each_entry_safe(cur, next, &client_list, list) {
list_del(&(cur->list));
kfree(cur);
}
mutex_unlock(&ibnl_mutex);
for (idx = 0; idx < RDMA_NL_NUM_CLIENTS; idx++)
rdma_nl_unregister(idx);
netlink_kernel_release(nls);
}

322
drivers/infiniband/core/nldev.c Normal file
View File

@ -0,0 +1,322 @@
/*
* Copyright (c) 2017 Mellanox Technologies. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <net/netlink.h>
#include <rdma/rdma_netlink.h>
#include "core_priv.h"
static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_DEV_INDEX] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING,
.len = IB_DEVICE_NAME_MAX - 1},
[RDMA_NLDEV_ATTR_PORT_INDEX] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_FW_VERSION] = { .type = NLA_NUL_STRING,
.len = IB_FW_VERSION_NAME_MAX - 1},
[RDMA_NLDEV_ATTR_NODE_GUID] = { .type = NLA_U64 },
[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = { .type = NLA_U64 },
[RDMA_NLDEV_ATTR_SUBNET_PREFIX] = { .type = NLA_U64 },
[RDMA_NLDEV_ATTR_LID] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_SM_LID] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_LMC] = { .type = NLA_U8 },
[RDMA_NLDEV_ATTR_PORT_STATE] = { .type = NLA_U8 },
[RDMA_NLDEV_ATTR_PORT_PHYS_STATE] = { .type = NLA_U8 },
[RDMA_NLDEV_ATTR_DEV_NODE_TYPE] = { .type = NLA_U8 },
};
static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
{
char fw[IB_FW_VERSION_NAME_MAX];
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index))
return -EMSGSIZE;
if (nla_put_string(msg, RDMA_NLDEV_ATTR_DEV_NAME, device->name))
return -EMSGSIZE;
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, rdma_end_port(device)))
return -EMSGSIZE;
BUILD_BUG_ON(sizeof(device->attrs.device_cap_flags) != sizeof(u64));
if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS,
device->attrs.device_cap_flags, 0))
return -EMSGSIZE;
ib_get_device_fw_str(device, fw);
/* Device without FW has strlen(fw) */
if (strlen(fw) && nla_put_string(msg, RDMA_NLDEV_ATTR_FW_VERSION, fw))
return -EMSGSIZE;
if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_NODE_GUID,
be64_to_cpu(device->node_guid), 0))
return -EMSGSIZE;
if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SYS_IMAGE_GUID,
be64_to_cpu(device->attrs.sys_image_guid), 0))
return -EMSGSIZE;
if (nla_put_u8(msg, RDMA_NLDEV_ATTR_DEV_NODE_TYPE, device->node_type))
return -EMSGSIZE;
return 0;
}
static int fill_port_info(struct sk_buff *msg,
struct ib_device *device, u32 port)
{
struct ib_port_attr attr;
int ret;
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index))
return -EMSGSIZE;
if (nla_put_string(msg, RDMA_NLDEV_ATTR_DEV_NAME, device->name))
return -EMSGSIZE;
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port))
return -EMSGSIZE;
ret = ib_query_port(device, port, &attr);
if (ret)
return ret;
BUILD_BUG_ON(sizeof(attr.port_cap_flags) > sizeof(u64));
if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS,
(u64)attr.port_cap_flags, 0))
return -EMSGSIZE;
if (rdma_protocol_ib(device, port) &&
nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SUBNET_PREFIX,
attr.subnet_prefix, 0))
return -EMSGSIZE;
if (rdma_protocol_ib(device, port)) {
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_LID, attr.lid))
return -EMSGSIZE;
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_SM_LID, attr.sm_lid))
return -EMSGSIZE;
if (nla_put_u8(msg, RDMA_NLDEV_ATTR_LMC, attr.lmc))
return -EMSGSIZE;
}
if (nla_put_u8(msg, RDMA_NLDEV_ATTR_PORT_STATE, attr.state))
return -EMSGSIZE;
if (nla_put_u8(msg, RDMA_NLDEV_ATTR_PORT_PHYS_STATE, attr.phys_state))
return -EMSGSIZE;
return 0;
}
static int nldev_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
struct ib_device *device;
struct sk_buff *msg;
u32 index;
int err;
err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
nldev_policy, extack);
if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX])
return -EINVAL;
index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
device = __ib_device_get_by_index(index);
if (!device)
return -EINVAL;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq,
RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET),
0, 0);
err = fill_dev_info(msg, device);
if (err) {
nlmsg_free(msg);
return err;
}
nlmsg_end(msg, nlh);
return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
}
static int _nldev_get_dumpit(struct ib_device *device,
struct sk_buff *skb,
struct netlink_callback *cb,
unsigned int idx)
{
int start = cb->args[0];
struct nlmsghdr *nlh;
if (idx < start)
return 0;
nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET),
0, NLM_F_MULTI);
if (fill_dev_info(skb, device)) {
nlmsg_cancel(skb, nlh);
goto out;
}
nlmsg_end(skb, nlh);
idx++;
out: cb->args[0] = idx;
return skb->len;
}
static int nldev_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
{
/*
* There is no need to take lock, because
* we are relying on ib_core's lists_rwsem
*/
return ib_enum_all_devs(_nldev_get_dumpit, skb, cb);
}
static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
struct ib_device *device;
struct sk_buff *msg;
u32 index;
u32 port;
int err;
err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
nldev_policy, extack);
if (err || !tb[RDMA_NLDEV_ATTR_PORT_INDEX])
return -EINVAL;
index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
device = __ib_device_get_by_index(index);
if (!device)
return -EINVAL;
port = nla_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]);
if (!rdma_is_port_valid(device, port))
return -EINVAL;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq,
RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET),
0, 0);
err = fill_port_info(msg, device, port);
if (err) {
nlmsg_free(msg);
return err;
}
nlmsg_end(msg, nlh);
return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
}
static int nldev_port_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
struct ib_device *device;
int start = cb->args[0];
struct nlmsghdr *nlh;
u32 idx = 0;
u32 ifindex;
int err;
u32 p;
err = nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
nldev_policy, NULL);
if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX])
return -EINVAL;
ifindex = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
device = __ib_device_get_by_index(ifindex);
if (!device)
return -EINVAL;
for (p = rdma_start_port(device); p <= rdma_end_port(device); ++p) {
/*
* The dumpit function returns all information from specific
* index. This specific index is taken from the netlink
* messages request sent by user and it is available
* in cb->args[0].
*
* Usually, the user doesn't fill this field and it causes
* to return everything.
*
*/
if (idx < start) {
idx++;
continue;
}
nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
RDMA_NL_GET_TYPE(RDMA_NL_NLDEV,
RDMA_NLDEV_CMD_PORT_GET),
0, NLM_F_MULTI);
if (fill_port_info(skb, device, p)) {
nlmsg_cancel(skb, nlh);
goto out;
}
idx++;
nlmsg_end(skb, nlh);
}
out: cb->args[0] = idx;
return skb->len;
}
static const struct rdma_nl_cbs nldev_cb_table[] = {
[RDMA_NLDEV_CMD_GET] = {
.doit = nldev_get_doit,
.dump = nldev_get_dumpit,
},
[RDMA_NLDEV_CMD_PORT_GET] = {
.doit = nldev_port_get_doit,
.dump = nldev_port_get_dumpit,
},
};
void __init nldev_init(void)
{
rdma_nl_register(RDMA_NL_NLDEV, nldev_cb_table);
}
void __exit nldev_exit(void)
{
rdma_nl_unregister(RDMA_NL_NLDEV);
}

18
drivers/infiniband/core/sa_query.c
View File

@ -861,7 +861,7 @@ static int ib_nl_send_msg(struct ib_sa_query *query, gfp_t gfp_mask)
/* Repair the nlmsg header length */
nlmsg_end(skb, nlh);
ret = ibnl_multicast(skb, nlh, RDMA_NL_GROUP_LS, gfp_mask);
ret = rdma_nl_multicast(skb, RDMA_NL_GROUP_LS, gfp_mask);
if (!ret)
ret = len;
else
@ -1021,9 +1021,9 @@ static void ib_nl_request_timeout(struct work_struct *work)
}
int ib_nl_handle_set_timeout(struct sk_buff *skb,
struct netlink_callback *cb)
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh;
int timeout, delta, abs_delta;
const struct nlattr *attr;
unsigned long flags;
@ -1033,8 +1033,7 @@ int ib_nl_handle_set_timeout(struct sk_buff *skb,
int ret;
if (!(nlh->nlmsg_flags & NLM_F_REQUEST) ||
!(NETLINK_CB(skb).sk) ||
!netlink_capable(skb, CAP_NET_ADMIN))
!(NETLINK_CB(skb).sk))
return -EPERM;
ret = nla_parse(tb, LS_NLA_TYPE_MAX - 1, nlmsg_data(nlh),
@ -1098,9 +1097,9 @@ static inline int ib_nl_is_good_resolve_resp(const struct nlmsghdr *nlh)
}
int ib_nl_handle_resolve_resp(struct sk_buff *skb,
struct netlink_callback *cb)
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh;
unsigned long flags;
struct ib_sa_query *query;
struct ib_mad_send_buf *send_buf;
@ -1109,8 +1108,7 @@ int ib_nl_handle_resolve_resp(struct sk_buff *skb,
int ret;
if ((nlh->nlmsg_flags & NLM_F_REQUEST) ||
!(NETLINK_CB(skb).sk) ||
!netlink_capable(skb, CAP_NET_ADMIN))
!(NETLINK_CB(skb).sk))
return -EPERM;
spin_lock_irqsave(&ib_nl_request_lock, flags);
@ -1420,7 +1418,7 @@ static int send_mad(struct ib_sa_query *query, int timeout_ms, gfp_t gfp_mask)
if ((query->flags & IB_SA_ENABLE_LOCAL_SERVICE) &&
(!(query->flags & IB_SA_QUERY_OPA))) {
if (!ibnl_chk_listeners(RDMA_NL_GROUP_LS)) {
if (!rdma_nl_chk_listeners(RDMA_NL_GROUP_LS)) {
if (!ib_nl_make_request(query, gfp_mask))
return id;
}

4
drivers/infiniband/core/sysfs.c
View File

@ -1210,8 +1210,8 @@ static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
{
struct ib_device *dev = container_of(device, struct ib_device, dev);
ib_get_device_fw_str(dev, buf, PAGE_SIZE);
strlcat(buf, "\n", PAGE_SIZE);
ib_get_device_fw_str(dev, buf);
strlcat(buf, "\n", IB_FW_VERSION_NAME_MAX);
return strlen(buf);
}

5
drivers/infiniband/hw/cxgb3/iwch_provider.c
View File

@ -1336,8 +1336,7 @@ static int iwch_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str,
size_t str_len)
static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str)
{
struct iwch_dev *iwch_dev = to_iwch_dev(ibdev);
struct ethtool_drvinfo info;
@ -1345,7 +1344,7 @@ static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str,
pr_debug("%s dev 0x%p\n", __func__, iwch_dev);
lldev->ethtool_ops->get_drvinfo(lldev, &info);
snprintf(str, str_len, "%s", info.fw_version);
snprintf(str, IB_FW_VERSION_NAME_MAX, "%s", info.fw_version);
}
int iwch_register_device(struct iwch_dev *dev)

5
drivers/infiniband/hw/cxgb4/provider.c
View File

@ -517,14 +517,13 @@ static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void get_dev_fw_str(struct ib_device *dev, char *str,
size_t str_len)
static void get_dev_fw_str(struct ib_device *dev, char *str)
{
struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
ibdev);
pr_debug("%s dev 0x%p\n", __func__, dev);
snprintf(str, str_len, "%u.%u.%u.%u",
snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u",
FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),

5
drivers/infiniband/hw/hfi1/verbs.c
View File

@ -1561,14 +1561,13 @@ static void init_ibport(struct hfi1_pportdata *ppd)
RCU_INIT_POINTER(ibp->rvp.qp[1], NULL);
}
static void hfi1_get_dev_fw_str(struct ib_device *ibdev, char *str,
size_t str_len)
static void hfi1_get_dev_fw_str(struct ib_device *ibdev, char *str)
{
struct rvt_dev_info *rdi = ib_to_rvt(ibdev);
struct hfi1_ibdev *dev = dev_from_rdi(rdi);
u32 ver = dd_from_dev(dev)->dc8051_ver;
snprintf(str, str_len, "%u.%u.%u", dc8051_ver_maj(ver),
snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u", dc8051_ver_maj(ver),
dc8051_ver_min(ver), dc8051_ver_patch(ver));
}

7
drivers/infiniband/hw/i40iw/i40iw_verbs.c
View File

@ -2584,13 +2584,12 @@ static const char * const i40iw_hw_stat_names[] = {
"iwRdmaInv"
};
static void i40iw_get_dev_fw_str(struct ib_device *dev, char *str,
size_t str_len)
static void i40iw_get_dev_fw_str(struct ib_device *dev, char *str)
{
u32 firmware_version = I40IW_FW_VERSION;
snprintf(str, str_len, "%u.%u", firmware_version,
(firmware_version & 0x000000ff));
snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u", firmware_version,
(firmware_version & 0x000000ff));
}
/**

5
drivers/infiniband/hw/mlx4/main.c
View File

@ -2587,12 +2587,11 @@ static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void get_fw_ver_str(struct ib_device *device, char *str,
size_t str_len)
static void get_fw_ver_str(struct ib_device *device, char *str)
{
struct mlx4_ib_dev *dev =
container_of(device, struct mlx4_ib_dev, ib_dev);
snprintf(str, str_len, "%d.%d.%d",
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d",
(int) (dev->dev->caps.fw_ver >> 32),
(int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
(int) dev->dev->caps.fw_ver & 0xffff);

8
drivers/infiniband/hw/mlx5/main.c
View File

@ -3285,13 +3285,13 @@ static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void get_dev_fw_str(struct ib_device *ibdev, char *str,
size_t str_len)
static void get_dev_fw_str(struct ib_device *ibdev, char *str)
{
struct mlx5_ib_dev *dev =
container_of(ibdev, struct mlx5_ib_dev, ib_dev);
snprintf(str, str_len, "%d.%d.%04d", fw_rev_maj(dev->mdev),
fw_rev_min(dev->mdev), fw_rev_sub(dev->mdev));
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%04d",
fw_rev_maj(dev->mdev), fw_rev_min(dev->mdev),
fw_rev_sub(dev->mdev));
}
static int mlx5_eth_lag_init(struct mlx5_ib_dev *dev)

5
drivers/infiniband/hw/mthca/mthca_provider.c
View File

@ -1178,12 +1178,11 @@ static int mthca_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void get_dev_fw_str(struct ib_device *device, char *str,
size_t str_len)
static void get_dev_fw_str(struct ib_device *device, char *str)
{
struct mthca_dev *dev =
container_of(device, struct mthca_dev, ib_dev);
snprintf(str, str_len, "%d.%d.%d",
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d",
(int) (dev->fw_ver >> 32),
(int) (dev->fw_ver >> 16) & 0xffff,
(int) dev->fw_ver & 0xffff);

5
drivers/infiniband/hw/nes/nes_verbs.c
View File

@ -3672,15 +3672,14 @@ static int nes_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void get_dev_fw_str(struct ib_device *dev, char *str,
size_t str_len)
static void get_dev_fw_str(struct ib_device *dev, char *str)
{
struct nes_ib_device *nesibdev =
container_of(dev, struct nes_ib_device, ibdev);
struct nes_vnic *nesvnic = nesibdev->nesvnic;
nes_debug(NES_DBG_INIT, "\n");
snprintf(str, str_len, "%u.%u",
snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u",
(nesvnic->nesdev->nesadapter->firmware_version >> 16),
(nesvnic->nesdev->nesadapter->firmware_version & 0x000000ff));
}

5
drivers/infiniband/hw/ocrdma/ocrdma_main.c
View File

@ -107,12 +107,11 @@ static int ocrdma_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void get_dev_fw_str(struct ib_device *device, char *str,
size_t str_len)
static void get_dev_fw_str(struct ib_device *device, char *str)
{
struct ocrdma_dev *dev = get_ocrdma_dev(device);
snprintf(str, str_len, "%s", &dev->attr.fw_ver[0]);
snprintf(str, IB_FW_VERSION_NAME_MAX, "%s", &dev->attr.fw_ver[0]);
}
static int ocrdma_register_device(struct ocrdma_dev *dev)

5
drivers/infiniband/hw/qedr/main.c
View File

@ -68,13 +68,12 @@ static enum rdma_link_layer qedr_link_layer(struct ib_device *device,
return IB_LINK_LAYER_ETHERNET;
}
static void qedr_get_dev_fw_str(struct ib_device *ibdev, char *str,
size_t str_len)
static void qedr_get_dev_fw_str(struct ib_device *ibdev, char *str)
{
struct qedr_dev *qedr = get_qedr_dev(ibdev);
u32 fw_ver = (u32)qedr->attr.fw_ver;
snprintf(str, str_len, "%d. %d. %d. %d",
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d. %d. %d. %d",
(fw_ver >> 24) & 0xFF, (fw_ver >> 16) & 0xFF,
(fw_ver >> 8) & 0xFF, fw_ver & 0xFF);
}

6
drivers/infiniband/hw/usnic/usnic_ib_main.c
View File

@ -333,9 +333,7 @@ static int usnic_port_immutable(struct ib_device *ibdev, u8 port_num,
return 0;
}
static void usnic_get_dev_fw_str(struct ib_device *device,
char *str,
size_t str_len)
static void usnic_get_dev_fw_str(struct ib_device *device, char *str)
{
struct usnic_ib_dev *us_ibdev =
container_of(device, struct usnic_ib_dev, ib_dev);
@ -345,7 +343,7 @@ static void usnic_get_dev_fw_str(struct ib_device *device,
us_ibdev->netdev->ethtool_ops->get_drvinfo(us_ibdev->netdev, &info);
mutex_unlock(&us_ibdev->usdev_lock);
snprintf(str, str_len, "%s", info.fw_version);
snprintf(str, IB_FW_VERSION_NAME_MAX, "%s", info.fw_version);
}
/* Start of PF discovery section */

5
drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
View File

@ -102,12 +102,11 @@ static struct device_attribute *pvrdma_class_attributes[] = {
&dev_attr_board_id
};
static void pvrdma_get_fw_ver_str(struct ib_device *device, char *str,
size_t str_len)
static void pvrdma_get_fw_ver_str(struct ib_device *device, char *str)
{
struct pvrdma_dev *dev =
container_of(device, struct pvrdma_dev, ib_dev);
snprintf(str, str_len, "%d.%d.%d\n",
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d\n",
(int) (dev->dsr->caps.fw_ver >> 32),
(int) (dev->dsr->caps.fw_ver >> 16) & 0xffff,
(int) dev->dsr->caps.fw_ver & 0xffff);

3
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
View File

@ -62,8 +62,7 @@ static void ipoib_get_drvinfo(struct net_device *netdev,
{
struct ipoib_dev_priv *priv = ipoib_priv(netdev);
ib_get_device_fw_str(priv->ca, drvinfo->fw_version,
sizeof(drvinfo->fw_version));
ib_get_device_fw_str(priv->ca, drvinfo->fw_version);
strlcpy(drvinfo->bus_info, dev_name(priv->ca->dev.parent),
sizeof(drvinfo->bus_info));

8
include/rdma/ib_verbs.h
View File

@ -64,6 +64,8 @@
#include <linux/cgroup_rdma.h>
#include <uapi/rdma/ib_user_verbs.h>
#define IB_FW_VERSION_NAME_MAX ETHTOOL_FWVERS_LEN
extern struct workqueue_struct *ib_wq;
extern struct workqueue_struct *ib_comp_wq;
@ -2298,6 +2300,8 @@ struct ib_device {
struct rdmacg_device cg_device;
#endif
u32 index;
/**
* The following mandatory functions are used only at device
* registration. Keep functions such as these at the end of this
@ -2305,7 +2309,7 @@ struct ib_device {
* in fast paths.
*/
int (*get_port_immutable)(struct ib_device *, u8, struct ib_port_immutable *);
void (*get_dev_fw_str)(struct ib_device *, char *str, size_t str_len);
void (*get_dev_fw_str)(struct ib_device *, char *str);
const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev,
int comp_vector);
};
@ -2343,7 +2347,7 @@ struct ib_client {
struct ib_device *ib_alloc_device(size_t size);
void ib_dealloc_device(struct ib_device *device);
void ib_get_device_fw_str(struct ib_device *device, char *str, size_t str_len);
void ib_get_device_fw_str(struct ib_device *device, char *str);
int ib_register_device(struct ib_device *device,
int (*port_callback)(struct ib_device *,

46
include/rdma/rdma_netlink.h
View File

@ -5,29 +5,31 @@
#include <linux/netlink.h>
#include <uapi/rdma/rdma_netlink.h>
struct ibnl_client_cbs {
struct rdma_nl_cbs {
int (*doit)(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack);
int (*dump)(struct sk_buff *skb, struct netlink_callback *nlcb);
struct module *module;
u8 flags;
};
enum rdma_nl_flags {
/* Require CAP_NET_ADMIN */
RDMA_NL_ADMIN_PERM = 1 << 0,
};
/**
* Add a a client to the list of IB netlink exporters.
* Register client in RDMA netlink.
* @index: Index of the added client
* @nops: Number of supported ops by the added client.
* @cb_table: A table for op->callback
*
* Returns 0 on success or a negative error code.
*/
int ibnl_add_client(int index, int nops,
const struct ibnl_client_cbs cb_table[]);
void rdma_nl_register(unsigned int index,
const struct rdma_nl_cbs cb_table[]);
/**
* Remove a client from IB netlink.
* @index: Index of the removed IB client.
*
* Returns 0 on success or a negative error code.
*/
int ibnl_remove_client(int index);
void rdma_nl_unregister(unsigned int index);
/**
* Put a new message in a supplied skb.
@ -56,22 +58,32 @@ int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,
/**
* Send the supplied skb to a specific userspace PID.
* @skb: The netlink skb
* @nlh: Header of the netlink message to send
* @pid: Userspace netlink process ID
* Returns 0 on success or a negative error code.
*/
int ibnl_unicast(struct sk_buff *skb, struct nlmsghdr *nlh,
__u32 pid);
int rdma_nl_unicast(struct sk_buff *skb, u32 pid);
/**
* Send, with wait/1 retry, the supplied skb to a specific userspace PID.
* @skb: The netlink skb
* @pid: Userspace netlink process ID
* Returns 0 on success or a negative error code.
*/
int rdma_nl_unicast_wait(struct sk_buff *skb, __u32 pid);
/**
* Send the supplied skb to a netlink group.
* @skb: The netlink skb
* @nlh: Header of the netlink message to send
* @group: Netlink group ID
* @flags: allocation flags
* Returns 0 on success or a negative error code.
*/
int ibnl_multicast(struct sk_buff *skb, struct nlmsghdr *nlh,
unsigned int group, gfp_t flags);
int rdma_nl_multicast(struct sk_buff *skb, unsigned int group, gfp_t flags);
/**
* Check if there are any listeners to the netlink group
* @group: the netlink group ID
* Returns 0 on success or a negative for no listeners.
*/
int rdma_nl_chk_listeners(unsigned int group);
#endif /* _RDMA_NETLINK_H */

84
include/uapi/rdma/rdma_netlink.h
View File

@ -8,7 +8,7 @@ enum {
RDMA_NL_IWCM,
RDMA_NL_RSVD,
RDMA_NL_LS, /* RDMA Local Services */
RDMA_NL_I40IW,
RDMA_NL_NLDEV, /* RDMA device interface */
RDMA_NL_NUM_CLIENTS
};
@ -222,4 +222,86 @@ struct rdma_nla_ls_gid {
__u8 gid[16];
};
enum rdma_nldev_command {
RDMA_NLDEV_CMD_UNSPEC,
RDMA_NLDEV_CMD_GET, /* can dump */
RDMA_NLDEV_CMD_SET,
RDMA_NLDEV_CMD_NEW,
RDMA_NLDEV_CMD_DEL,
RDMA_NLDEV_CMD_PORT_GET, /* can dump */
RDMA_NLDEV_CMD_PORT_SET,
RDMA_NLDEV_CMD_PORT_NEW,
RDMA_NLDEV_CMD_PORT_DEL,
RDMA_NLDEV_NUM_OPS
};
enum rdma_nldev_attr {
/* don't change the order or add anything between, this is ABI! */
RDMA_NLDEV_ATTR_UNSPEC,
/* Identifier for ib_device */
RDMA_NLDEV_ATTR_DEV_INDEX, /* u32 */
RDMA_NLDEV_ATTR_DEV_NAME, /* string */
/*
* Device index together with port index are identifiers
* for port/link properties.
*
* For RDMA_NLDEV_CMD_GET commamnd, port index will return number
* of available ports in ib_device, while for port specific operations,
* it will be real port index as it appears in sysfs. Port index follows
* sysfs notation and starts from 1 for the first port.
*/
RDMA_NLDEV_ATTR_PORT_INDEX, /* u32 */
/*
* Device and port capabilities
*/
RDMA_NLDEV_ATTR_CAP_FLAGS, /* u64 */
/*
* FW version
*/
RDMA_NLDEV_ATTR_FW_VERSION, /* string */
/*
* Node GUID (in host byte order) associated with the RDMA device.
*/
RDMA_NLDEV_ATTR_NODE_GUID, /* u64 */
/*
* System image GUID (in host byte order) associated with
* this RDMA device and other devices which are part of a
* single system.
*/
RDMA_NLDEV_ATTR_SYS_IMAGE_GUID, /* u64 */
/*
* Subnet prefix (in host byte order)
*/
RDMA_NLDEV_ATTR_SUBNET_PREFIX, /* u64 */
/*
* Local Identifier (LID),
* According to IB specification, It is 16-bit address assigned
* by the Subnet Manager. Extended to be 32-bit for OmniPath users.
*/
RDMA_NLDEV_ATTR_LID, /* u32 */
RDMA_NLDEV_ATTR_SM_LID, /* u32 */
/*
* LID mask control (LMC)
*/
RDMA_NLDEV_ATTR_LMC, /* u8 */
RDMA_NLDEV_ATTR_PORT_STATE, /* u8 */
RDMA_NLDEV_ATTR_PORT_PHYS_STATE, /* u8 */
RDMA_NLDEV_ATTR_DEV_NODE_TYPE, /* u8 */
RDMA_NLDEV_ATTR_MAX
};
#endif /* _UAPI_RDMA_NETLINK_H */