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ibcore: Add rdma_reject_msg() helper function.

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rdma_reject_msg() returns a pointer to a string message associated with
the transport reject reason codes.

Linux commit:
77a5db13153906a7e00740b10b2730e53385c5a8

MFC after:	1 week
Reviewed by:	kib
Sponsored by:	Mellanox Technologies // NVIDIA Networking
This commit is contained in:
Hans Petter Selasky 2021-06-16 15:01:34 +02:00
parent cf88b86e49
commit e25bcf8d77
6 changed files with 103 additions and 0 deletions
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48
sys/ofed/drivers/infiniband/core/ib_cm.c
View file

@ -65,6 +65,54 @@ MODULE_AUTHOR("Sean Hefty");
MODULE_DESCRIPTION("InfiniBand CM");
MODULE_LICENSE("Dual BSD/GPL");
static const char * const ibcm_rej_reason_strs[] = {
[IB_CM_REJ_NO_QP] = "no QP",
[IB_CM_REJ_NO_EEC] = "no EEC",
[IB_CM_REJ_NO_RESOURCES] = "no resources",
[IB_CM_REJ_TIMEOUT] = "timeout",
[IB_CM_REJ_UNSUPPORTED] = "unsupported",
[IB_CM_REJ_INVALID_COMM_ID] = "invalid comm ID",
[IB_CM_REJ_INVALID_COMM_INSTANCE] = "invalid comm instance",
[IB_CM_REJ_INVALID_SERVICE_ID] = "invalid service ID",
[IB_CM_REJ_INVALID_TRANSPORT_TYPE] = "invalid transport type",
[IB_CM_REJ_STALE_CONN] = "stale conn",
[IB_CM_REJ_RDC_NOT_EXIST] = "RDC not exist",
[IB_CM_REJ_INVALID_GID] = "invalid GID",
[IB_CM_REJ_INVALID_LID] = "invalid LID",
[IB_CM_REJ_INVALID_SL] = "invalid SL",
[IB_CM_REJ_INVALID_TRAFFIC_CLASS] = "invalid traffic class",
[IB_CM_REJ_INVALID_HOP_LIMIT] = "invalid hop limit",
[IB_CM_REJ_INVALID_PACKET_RATE] = "invalid packet rate",
[IB_CM_REJ_INVALID_ALT_GID] = "invalid alt GID",
[IB_CM_REJ_INVALID_ALT_LID] = "invalid alt LID",
[IB_CM_REJ_INVALID_ALT_SL] = "invalid alt SL",
[IB_CM_REJ_INVALID_ALT_TRAFFIC_CLASS] = "invalid alt traffic class",
[IB_CM_REJ_INVALID_ALT_HOP_LIMIT] = "invalid alt hop limit",
[IB_CM_REJ_INVALID_ALT_PACKET_RATE] = "invalid alt packet rate",
[IB_CM_REJ_PORT_CM_REDIRECT] = "port CM redirect",
[IB_CM_REJ_PORT_REDIRECT] = "port redirect",
[IB_CM_REJ_INVALID_MTU] = "invalid MTU",
[IB_CM_REJ_INSUFFICIENT_RESP_RESOURCES] = "insufficient resp resources",
[IB_CM_REJ_CONSUMER_DEFINED] = "consumer defined",
[IB_CM_REJ_INVALID_RNR_RETRY] = "invalid RNR retry",
[IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID] = "duplicate local comm ID",
[IB_CM_REJ_INVALID_CLASS_VERSION] = "invalid class version",
[IB_CM_REJ_INVALID_FLOW_LABEL] = "invalid flow label",
[IB_CM_REJ_INVALID_ALT_FLOW_LABEL] = "invalid alt flow label",
};
const char *__attribute_const__ ibcm_reject_msg(int reason)
{
size_t index = reason;
if (index < ARRAY_SIZE(ibcm_rej_reason_strs) &&
ibcm_rej_reason_strs[index])
return ibcm_rej_reason_strs[index];
else
return "unrecognized reason";
}
EXPORT_SYMBOL(ibcm_reject_msg);
static void cm_add_one(struct ib_device *device);
static void cm_remove_one(struct ib_device *device, void *client_data);

14
sys/ofed/drivers/infiniband/core/ib_cma.c
View file

@ -112,6 +112,20 @@ const char *__attribute_const__ rdma_event_msg(enum rdma_cm_event_type event)
}
EXPORT_SYMBOL(rdma_event_msg);
const char *__attribute_const__ rdma_reject_msg(struct rdma_cm_id *id,
int reason)
{
if (rdma_ib_or_roce(id->device, id->port_num))
return ibcm_reject_msg(reason);
if (rdma_protocol_iwarp(id->device, id->port_num))
return iwcm_reject_msg(reason);
WARN_ON_ONCE(1);
return "unrecognized transport";
}
EXPORT_SYMBOL(rdma_reject_msg);
static int cma_check_linklocal(struct rdma_dev_addr *, struct sockaddr *);
static void cma_add_one(struct ib_device *device);
static void cma_remove_one(struct ib_device *device, void *client_data);

21
sys/ofed/drivers/infiniband/core/ib_iwcm.c
View file

@ -63,6 +63,27 @@ MODULE_AUTHOR("Tom Tucker");
MODULE_DESCRIPTION("iWARP CM");
MODULE_LICENSE("Dual BSD/GPL");
static const char * const iwcm_rej_reason_strs[] = {
[ECONNRESET] = "reset by remote host",
[ECONNREFUSED] = "refused by remote application",
[ETIMEDOUT] = "setup timeout",
};
const char *__attribute_const__ iwcm_reject_msg(int reason)
{
size_t index;
/* iWARP uses negative errnos */
index = -reason;
if (index < ARRAY_SIZE(iwcm_rej_reason_strs) &&
iwcm_rej_reason_strs[index])
return iwcm_rej_reason_strs[index];
else
return "unrecognized reason";
}
EXPORT_SYMBOL(iwcm_reject_msg);
static struct workqueue_struct *iwcm_wq;
struct iwcm_work {
struct work_struct work;

6
sys/ofed/include/rdma/ib_cm.h
View file

@ -622,4 +622,10 @@ struct ib_cm_sidr_rep_param {
int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id,
struct ib_cm_sidr_rep_param *param);
/**
* ibcm_reject_msg - return a pointer to a reject message string.
* @reason: Value returned in the REJECT event status field.
*/
const char *__attribute_const__ ibcm_reject_msg(int reason);
#endif /* IB_CM_H */

6
sys/ofed/include/rdma/iw_cm.h
View file

@ -257,4 +257,10 @@ int iw_cm_disconnect(struct iw_cm_id *cm_id, int abrupt);
int iw_cm_init_qp_attr(struct iw_cm_id *cm_id, struct ib_qp_attr *qp_attr,
int *qp_attr_mask);
/**
* iwcm_reject_msg - return a pointer to a reject message string.
* @reason: Value returned in the REJECT event status field.
*/
const char *__attribute_const__ iwcm_reject_msg(int reason);
#endif /* IW_CM_H */

8
sys/ofed/include/rdma/rdma_cm.h
View file

@ -392,4 +392,12 @@ int rdma_set_afonly(struct rdma_cm_id *id, int afonly);
*/
__be64 rdma_get_service_id(struct rdma_cm_id *id, struct sockaddr *addr);
/**
* rdma_reject_msg - return a pointer to a reject message string.
* @id: Communication identifier that received the REJECT event.
* @reason: Value returned in the REJECT event status field.
*/
const char *__attribute_const__ rdma_reject_msg(struct rdma_cm_id *id,
int reason);
#endif /* RDMA_CM_H */