diff options
Diffstat (limited to 'drivers/infiniband/core/sa_query.c')
-rw-r--r-- | drivers/infiniband/core/sa_query.c | 213 |
1 files changed, 181 insertions, 32 deletions
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index 8a09c0fb268d..e95538650dc6 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -53,10 +53,6 @@ #include "sa.h" #include "core_priv.h" -MODULE_AUTHOR("Roland Dreier"); -MODULE_DESCRIPTION("InfiniBand subnet administration query support"); -MODULE_LICENSE("Dual BSD/GPL"); - #define IB_SA_LOCAL_SVC_TIMEOUT_MIN 100 #define IB_SA_LOCAL_SVC_TIMEOUT_DEFAULT 2000 #define IB_SA_LOCAL_SVC_TIMEOUT_MAX 200000 @@ -119,6 +115,12 @@ struct ib_sa_guidinfo_query { struct ib_sa_query sa_query; }; +struct ib_sa_classport_info_query { + void (*callback)(int, struct ib_class_port_info *, void *); + void *context; + struct ib_sa_query sa_query; +}; + struct ib_sa_mcmember_query { void (*callback)(int, struct ib_sa_mcmember_rec *, void *); void *context; @@ -392,6 +394,82 @@ static const struct ib_field service_rec_table[] = { .size_bits = 2*64 }, }; +#define CLASSPORTINFO_REC_FIELD(field) \ + .struct_offset_bytes = offsetof(struct ib_class_port_info, field), \ + .struct_size_bytes = sizeof((struct ib_class_port_info *)0)->field, \ + .field_name = "ib_class_port_info:" #field + +static const struct ib_field classport_info_rec_table[] = { + { CLASSPORTINFO_REC_FIELD(base_version), + .offset_words = 0, + .offset_bits = 0, + .size_bits = 8 }, + { CLASSPORTINFO_REC_FIELD(class_version), + .offset_words = 0, + .offset_bits = 8, + .size_bits = 8 }, + { CLASSPORTINFO_REC_FIELD(capability_mask), + .offset_words = 0, + .offset_bits = 16, + .size_bits = 16 }, + { CLASSPORTINFO_REC_FIELD(cap_mask2_resp_time), + .offset_words = 1, + .offset_bits = 0, + .size_bits = 32 }, + { CLASSPORTINFO_REC_FIELD(redirect_gid), + .offset_words = 2, + .offset_bits = 0, + .size_bits = 128 }, + { CLASSPORTINFO_REC_FIELD(redirect_tcslfl), + .offset_words = 6, + .offset_bits = 0, + .size_bits = 32 }, + { CLASSPORTINFO_REC_FIELD(redirect_lid), + .offset_words = 7, + .offset_bits = 0, + .size_bits = 16 }, + { CLASSPORTINFO_REC_FIELD(redirect_pkey), + .offset_words = 7, + .offset_bits = 16, + .size_bits = 16 }, + + { CLASSPORTINFO_REC_FIELD(redirect_qp), + .offset_words = 8, + .offset_bits = 0, + .size_bits = 32 }, + { CLASSPORTINFO_REC_FIELD(redirect_qkey), + .offset_words = 9, + .offset_bits = 0, + .size_bits = 32 }, + + { CLASSPORTINFO_REC_FIELD(trap_gid), + .offset_words = 10, + .offset_bits = 0, + .size_bits = 128 }, + { CLASSPORTINFO_REC_FIELD(trap_tcslfl), + .offset_words = 14, + .offset_bits = 0, + .size_bits = 32 }, + + { CLASSPORTINFO_REC_FIELD(trap_lid), + .offset_words = 15, + .offset_bits = 0, + .size_bits = 16 }, + { CLASSPORTINFO_REC_FIELD(trap_pkey), + .offset_words = 15, + .offset_bits = 16, + .size_bits = 16 }, + + { CLASSPORTINFO_REC_FIELD(trap_hlqp), + .offset_words = 16, + .offset_bits = 0, + .size_bits = 32 }, + { CLASSPORTINFO_REC_FIELD(trap_qkey), + .offset_words = 17, + .offset_bits = 0, + .size_bits = 32 }, +}; + #define GUIDINFO_REC_FIELD(field) \ .struct_offset_bytes = offsetof(struct ib_sa_guidinfo_rec, field), \ .struct_size_bytes = sizeof((struct ib_sa_guidinfo_rec *) 0)->field, \ @@ -536,7 +614,7 @@ static int ib_nl_send_msg(struct ib_sa_query *query, gfp_t gfp_mask) data = ibnl_put_msg(skb, &nlh, query->seq, 0, RDMA_NL_LS, RDMA_NL_LS_OP_RESOLVE, NLM_F_REQUEST); if (!data) { - kfree_skb(skb); + nlmsg_free(skb); return -EMSGSIZE; } @@ -705,8 +783,8 @@ static void ib_nl_request_timeout(struct work_struct *work) spin_unlock_irqrestore(&ib_nl_request_lock, flags); } -static int ib_nl_handle_set_timeout(struct sk_buff *skb, - struct netlink_callback *cb) +int ib_nl_handle_set_timeout(struct sk_buff *skb, + struct netlink_callback *cb) { const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh; int timeout, delta, abs_delta; @@ -782,8 +860,8 @@ static inline int ib_nl_is_good_resolve_resp(const struct nlmsghdr *nlh) return 1; } -static int ib_nl_handle_resolve_resp(struct sk_buff *skb, - struct netlink_callback *cb) +int ib_nl_handle_resolve_resp(struct sk_buff *skb, + struct netlink_callback *cb) { const struct nlmsghdr *nlh = (struct nlmsghdr *)cb->nlh; unsigned long flags; @@ -838,15 +916,6 @@ resp_out: return skb->len; } -static struct ibnl_client_cbs ib_sa_cb_table[] = { - [RDMA_NL_LS_OP_RESOLVE] = { - .dump = ib_nl_handle_resolve_resp, - .module = THIS_MODULE }, - [RDMA_NL_LS_OP_SET_TIMEOUT] = { - .dump = ib_nl_handle_set_timeout, - .module = THIS_MODULE }, -}; - static void free_sm_ah(struct kref *kref) { struct ib_sa_sm_ah *sm_ah = container_of(kref, struct ib_sa_sm_ah, ref); @@ -1645,6 +1714,97 @@ err1: } EXPORT_SYMBOL(ib_sa_guid_info_rec_query); +/* Support get SA ClassPortInfo */ +static void ib_sa_classport_info_rec_callback(struct ib_sa_query *sa_query, + int status, + struct ib_sa_mad *mad) +{ + struct ib_sa_classport_info_query *query = + container_of(sa_query, struct ib_sa_classport_info_query, sa_query); + + if (mad) { + struct ib_class_port_info rec; + + ib_unpack(classport_info_rec_table, + ARRAY_SIZE(classport_info_rec_table), + mad->data, &rec); + query->callback(status, &rec, query->context); + } else { + query->callback(status, NULL, query->context); + } +} + +static void ib_sa_portclass_info_rec_release(struct ib_sa_query *sa_query) +{ + kfree(container_of(sa_query, struct ib_sa_classport_info_query, + sa_query)); +} + +int ib_sa_classport_info_rec_query(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, + int timeout_ms, gfp_t gfp_mask, + void (*callback)(int status, + struct ib_class_port_info *resp, + void *context), + void *context, + struct ib_sa_query **sa_query) +{ + struct ib_sa_classport_info_query *query; + struct ib_sa_device *sa_dev = ib_get_client_data(device, &sa_client); + struct ib_sa_port *port; + struct ib_mad_agent *agent; + struct ib_sa_mad *mad; + int ret; + + if (!sa_dev) + return -ENODEV; + + port = &sa_dev->port[port_num - sa_dev->start_port]; + agent = port->agent; + + query = kzalloc(sizeof(*query), gfp_mask); + if (!query) + return -ENOMEM; + + query->sa_query.port = port; + ret = alloc_mad(&query->sa_query, gfp_mask); + if (ret) + goto err1; + + ib_sa_client_get(client); + query->sa_query.client = client; + query->callback = callback; + query->context = context; + + mad = query->sa_query.mad_buf->mad; + init_mad(mad, agent); + + query->sa_query.callback = callback ? ib_sa_classport_info_rec_callback : NULL; + + query->sa_query.release = ib_sa_portclass_info_rec_release; + /* support GET only */ + mad->mad_hdr.method = IB_MGMT_METHOD_GET; + mad->mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_CLASS_PORTINFO); + mad->sa_hdr.comp_mask = 0; + *sa_query = &query->sa_query; + + ret = send_mad(&query->sa_query, timeout_ms, gfp_mask); + if (ret < 0) + goto err2; + + return ret; + +err2: + *sa_query = NULL; + ib_sa_client_put(query->sa_query.client); + free_mad(&query->sa_query); + +err1: + kfree(query); + return ret; +} +EXPORT_SYMBOL(ib_sa_classport_info_rec_query); + static void send_handler(struct ib_mad_agent *agent, struct ib_mad_send_wc *mad_send_wc) { @@ -1794,7 +1954,7 @@ static void ib_sa_remove_one(struct ib_device *device, void *client_data) kfree(sa_dev); } -static int __init ib_sa_init(void) +int ib_sa_init(void) { int ret; @@ -1820,17 +1980,10 @@ static int __init ib_sa_init(void) goto err3; } - if (ibnl_add_client(RDMA_NL_LS, RDMA_NL_LS_NUM_OPS, - ib_sa_cb_table)) { - pr_err("Failed to add netlink callback\n"); - ret = -EINVAL; - goto err4; - } INIT_DELAYED_WORK(&ib_nl_timed_work, ib_nl_request_timeout); return 0; -err4: - destroy_workqueue(ib_nl_wq); + err3: mcast_cleanup(); err2: @@ -1839,9 +1992,8 @@ err1: return ret; } -static void __exit ib_sa_cleanup(void) +void ib_sa_cleanup(void) { - ibnl_remove_client(RDMA_NL_LS); cancel_delayed_work(&ib_nl_timed_work); flush_workqueue(ib_nl_wq); destroy_workqueue(ib_nl_wq); @@ -1849,6 +2001,3 @@ static void __exit ib_sa_cleanup(void) ib_unregister_client(&sa_client); idr_destroy(&query_idr); } - -module_init(ib_sa_init); -module_exit(ib_sa_cleanup); |