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RDMA/rtrs: Register ib event handler

Browse source 
Use ib_register_event_handler() to register event handlers for both
client and server side. For now, all those handlers do, is to print
type of incoming event.

Signed-off-by: Grzegorz Prajsner <grzegorz.prajsner@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Link: https://patch.msgid.link/20240821112217.41827-10-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Grzegorz Prajsner 2024-08-21 13:22:15 +02:00 • committed by Leon Romanovsky
parent d0e62bf7b5
commit 667db86bcb
5 changed files with 58 additions and 2 deletions
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21
drivers/infiniband/ulp/rtrs/rtrs-clt.c
View file

@ -3149,8 +3149,20 @@ close_path:
return err;
}
void rtrs_clt_ib_event_handler(struct ib_event_handler *handler,
struct ib_event *ibevent)
{
pr_info("Handling event: %s (%d).\n", ib_event_msg(ibevent->event),
ibevent->event);
}
static int rtrs_clt_ib_dev_init(struct rtrs_ib_dev *dev)
{
INIT_IB_EVENT_HANDLER(&dev->event_handler, dev->ib_dev,
rtrs_clt_ib_event_handler);
ib_register_event_handler(&dev->event_handler);
if (!(dev->ib_dev->attrs.device_cap_flags &
IB_DEVICE_MEM_MGT_EXTENSIONS)) {
pr_err("Memory registrations not supported.\n");
@ -3160,8 +3172,15 @@ static int rtrs_clt_ib_dev_init(struct rtrs_ib_dev *dev)
return 0;
}
static void rtrs_clt_ib_dev_deinit(struct rtrs_ib_dev *dev)
{
ib_unregister_event_handler(&dev->event_handler);
}
static const struct rtrs_rdma_dev_pd_ops dev_pd_ops = {
.init = rtrs_clt_ib_dev_init
.init = rtrs_clt_ib_dev_init,
.deinit = rtrs_clt_ib_dev_deinit
};
static int __init rtrs_client_init(void)

2
drivers/infiniband/ulp/rtrs/rtrs-clt.h
View file

@ -212,6 +212,8 @@ int rtrs_clt_remove_path_from_sysfs(struct rtrs_clt_path *path,
void rtrs_clt_set_max_reconnect_attempts(struct rtrs_clt_sess *clt, int value);
int rtrs_clt_get_max_reconnect_attempts(const struct rtrs_clt_sess *clt);
void free_path(struct rtrs_clt_path *clt_path);
void rtrs_clt_ib_event_handler(struct ib_event_handler *handler,
struct ib_event *ibevent);
/* rtrs-clt-stats.c */

2
drivers/infiniband/ulp/rtrs/rtrs-pri.h
View file

@ -69,6 +69,7 @@ struct rtrs_ib_dev;
struct rtrs_rdma_dev_pd_ops {
int (*init)(struct rtrs_ib_dev *dev);
void (*deinit)(struct rtrs_ib_dev *dev);
};
struct rtrs_rdma_dev_pd {
@ -84,6 +85,7 @@ struct rtrs_ib_dev {
struct kref ref;
struct list_head entry;
struct rtrs_rdma_dev_pd *pool;
struct ib_event_handler event_handler;
};
struct rtrs_con {

33
drivers/infiniband/ulp/rtrs/rtrs-srv.c
View file

@ -26,7 +26,10 @@ MODULE_LICENSE("GPL");
#define DEFAULT_SESS_QUEUE_DEPTH 512
#define MAX_HDR_SIZE PAGE_SIZE
static struct rtrs_rdma_dev_pd dev_pd;
static const struct rtrs_rdma_dev_pd_ops dev_pd_ops;
static struct rtrs_rdma_dev_pd dev_pd = {
.ops = &dev_pd_ops
};
const struct class rtrs_dev_class = {
.name = "rtrs-server",
};
@ -2269,6 +2272,34 @@ static int check_module_params(void)
return 0;
}
void rtrs_srv_ib_event_handler(struct ib_event_handler *handler,
struct ib_event *ibevent)
{
pr_info("Handling event: %s (%d).\n", ib_event_msg(ibevent->event),
ibevent->event);
}
static int rtrs_srv_ib_dev_init(struct rtrs_ib_dev *dev)
{
INIT_IB_EVENT_HANDLER(&dev->event_handler, dev->ib_dev,
rtrs_srv_ib_event_handler);
ib_register_event_handler(&dev->event_handler);
return 0;
}
static void rtrs_srv_ib_dev_deinit(struct rtrs_ib_dev *dev)
{
ib_unregister_event_handler(&dev->event_handler);
}
static const struct rtrs_rdma_dev_pd_ops dev_pd_ops = {
.init = rtrs_srv_ib_dev_init,
.deinit = rtrs_srv_ib_dev_deinit
};
static int __init rtrs_server_init(void)
{
int err;

2
drivers/infiniband/ulp/rtrs/rtrs-srv.h
View file

@ -132,6 +132,8 @@ struct rtrs_srv_ib_ctx {
extern const struct class rtrs_dev_class;
void close_path(struct rtrs_srv_path *srv_path);
void rtrs_srv_ib_event_handler(struct ib_event_handler *handler,
struct ib_event *ibevent);
static inline void rtrs_srv_update_rdma_stats(struct rtrs_srv_stats *s,
size_t size, int d)