ibcore: Add rdma_reject_msg() helper function.
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
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@ -65,6 +65,54 @@ MODULE_AUTHOR("Sean Hefty");
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MODULE_DESCRIPTION("InfiniBand CM");
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MODULE_LICENSE("Dual BSD/GPL");
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static const char * const ibcm_rej_reason_strs[] = {
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[IB_CM_REJ_NO_QP] = "no QP",
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[IB_CM_REJ_NO_EEC] = "no EEC",
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[IB_CM_REJ_NO_RESOURCES] = "no resources",
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[IB_CM_REJ_TIMEOUT] = "timeout",
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[IB_CM_REJ_UNSUPPORTED] = "unsupported",
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[IB_CM_REJ_INVALID_COMM_ID] = "invalid comm ID",
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[IB_CM_REJ_INVALID_COMM_INSTANCE] = "invalid comm instance",
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[IB_CM_REJ_INVALID_SERVICE_ID] = "invalid service ID",
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[IB_CM_REJ_INVALID_TRANSPORT_TYPE] = "invalid transport type",
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[IB_CM_REJ_STALE_CONN] = "stale conn",
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[IB_CM_REJ_RDC_NOT_EXIST] = "RDC not exist",
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[IB_CM_REJ_INVALID_GID] = "invalid GID",
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[IB_CM_REJ_INVALID_LID] = "invalid LID",
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[IB_CM_REJ_INVALID_SL] = "invalid SL",
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[IB_CM_REJ_INVALID_TRAFFIC_CLASS] = "invalid traffic class",
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[IB_CM_REJ_INVALID_HOP_LIMIT] = "invalid hop limit",
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[IB_CM_REJ_INVALID_PACKET_RATE] = "invalid packet rate",
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[IB_CM_REJ_INVALID_ALT_GID] = "invalid alt GID",
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[IB_CM_REJ_INVALID_ALT_LID] = "invalid alt LID",
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[IB_CM_REJ_INVALID_ALT_SL] = "invalid alt SL",
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[IB_CM_REJ_INVALID_ALT_TRAFFIC_CLASS] = "invalid alt traffic class",
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[IB_CM_REJ_INVALID_ALT_HOP_LIMIT] = "invalid alt hop limit",
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[IB_CM_REJ_INVALID_ALT_PACKET_RATE] = "invalid alt packet rate",
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[IB_CM_REJ_PORT_CM_REDIRECT] = "port CM redirect",
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[IB_CM_REJ_PORT_REDIRECT] = "port redirect",
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[IB_CM_REJ_INVALID_MTU] = "invalid MTU",
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[IB_CM_REJ_INSUFFICIENT_RESP_RESOURCES] = "insufficient resp resources",
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[IB_CM_REJ_CONSUMER_DEFINED] = "consumer defined",
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[IB_CM_REJ_INVALID_RNR_RETRY] = "invalid RNR retry",
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[IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID] = "duplicate local comm ID",
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[IB_CM_REJ_INVALID_CLASS_VERSION] = "invalid class version",
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[IB_CM_REJ_INVALID_FLOW_LABEL] = "invalid flow label",
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[IB_CM_REJ_INVALID_ALT_FLOW_LABEL] = "invalid alt flow label",
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};
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const char *__attribute_const__ ibcm_reject_msg(int reason)
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{
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size_t index = reason;
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if (index < ARRAY_SIZE(ibcm_rej_reason_strs) &&
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ibcm_rej_reason_strs[index])
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return ibcm_rej_reason_strs[index];
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else
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return "unrecognized reason";
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}
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EXPORT_SYMBOL(ibcm_reject_msg);
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static void cm_add_one(struct ib_device *device);
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static void cm_remove_one(struct ib_device *device, void *client_data);
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@ -112,6 +112,20 @@ const char *__attribute_const__ rdma_event_msg(enum rdma_cm_event_type event)
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}
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EXPORT_SYMBOL(rdma_event_msg);
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const char *__attribute_const__ rdma_reject_msg(struct rdma_cm_id *id,
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int reason)
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{
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if (rdma_ib_or_roce(id->device, id->port_num))
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return ibcm_reject_msg(reason);
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if (rdma_protocol_iwarp(id->device, id->port_num))
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return iwcm_reject_msg(reason);
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WARN_ON_ONCE(1);
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return "unrecognized transport";
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}
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EXPORT_SYMBOL(rdma_reject_msg);
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static int cma_check_linklocal(struct rdma_dev_addr *, struct sockaddr *);
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static void cma_add_one(struct ib_device *device);
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static void cma_remove_one(struct ib_device *device, void *client_data);
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@ -63,6 +63,27 @@ MODULE_AUTHOR("Tom Tucker");
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MODULE_DESCRIPTION("iWARP CM");
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MODULE_LICENSE("Dual BSD/GPL");
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static const char * const iwcm_rej_reason_strs[] = {
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[ECONNRESET] = "reset by remote host",
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[ECONNREFUSED] = "refused by remote application",
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[ETIMEDOUT] = "setup timeout",
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};
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const char *__attribute_const__ iwcm_reject_msg(int reason)
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{
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size_t index;
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/* iWARP uses negative errnos */
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index = -reason;
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if (index < ARRAY_SIZE(iwcm_rej_reason_strs) &&
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iwcm_rej_reason_strs[index])
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return iwcm_rej_reason_strs[index];
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else
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return "unrecognized reason";
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}
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EXPORT_SYMBOL(iwcm_reject_msg);
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static struct workqueue_struct *iwcm_wq;
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struct iwcm_work {
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struct work_struct work;
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@ -622,4 +622,10 @@ struct ib_cm_sidr_rep_param {
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int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id,
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struct ib_cm_sidr_rep_param *param);
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/**
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* ibcm_reject_msg - return a pointer to a reject message string.
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* @reason: Value returned in the REJECT event status field.
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*/
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const char *__attribute_const__ ibcm_reject_msg(int reason);
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#endif /* IB_CM_H */
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@ -257,4 +257,10 @@ int iw_cm_disconnect(struct iw_cm_id *cm_id, int abrupt);
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int iw_cm_init_qp_attr(struct iw_cm_id *cm_id, struct ib_qp_attr *qp_attr,
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int *qp_attr_mask);
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/**
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* iwcm_reject_msg - return a pointer to a reject message string.
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* @reason: Value returned in the REJECT event status field.
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*/
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const char *__attribute_const__ iwcm_reject_msg(int reason);
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#endif /* IW_CM_H */
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@ -392,4 +392,12 @@ int rdma_set_afonly(struct rdma_cm_id *id, int afonly);
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*/
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__be64 rdma_get_service_id(struct rdma_cm_id *id, struct sockaddr *addr);
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/**
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* rdma_reject_msg - return a pointer to a reject message string.
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* @id: Communication identifier that received the REJECT event.
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* @reason: Value returned in the REJECT event status field.
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*/
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const char *__attribute_const__ rdma_reject_msg(struct rdma_cm_id *id,
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int reason);
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#endif /* RDMA_CM_H */
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