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Commit 77a5db13 authored by Steve Wise's avatar Steve Wise Committed by Doug Ledford
Browse files

rdma_cm: add rdma_reject_msg() helper function 



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

Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Reviewed-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent e37a79e5

drivers/infiniband/core/cm.c

+48 −0
Original line number Diff line number Diff line
@@ -57,6 +57,54 @@ 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);

drivers/infiniband/core/cma.c

+14 −0
Original line number Diff line number Diff line
@@ -101,6 +101,20 @@ 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 void cma_add_one(struct ib_device *device);

static void cma_remove_one(struct ib_device *device, void *client_data);

drivers/infiniband/core/iwcm.c

+21 −0
Original line number Diff line number Diff line
@@ -59,6 +59,27 @@ 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 ibnl_client_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},

include/rdma/ib_cm.h

+6 −0
Original line number Diff line number Diff line
@@ -603,4 +603,10 @@ 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 */

include/rdma/iw_cm.h

+6 −0
Original line number Diff line number Diff line
@@ -253,4 +253,10 @@ 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 */