This commit was manufactured by cvs2svn to create branch 'vserver'.
[linux-2.6.git] / drivers / infiniband / include / ib_sa.h
diff --git a/drivers/infiniband/include/ib_sa.h b/drivers/infiniband/include/ib_sa.h
new file mode 100644 (file)
index 0000000..f4f7477
--- /dev/null
@@ -0,0 +1,308 @@
+/*
+ * Copyright (c) 2004 Topspin Communications.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * $Id: ib_sa.h 1389 2004-12-27 22:56:47Z roland $
+ */
+
+#ifndef IB_SA_H
+#define IB_SA_H
+
+#include <linux/compiler.h>
+
+#include <ib_verbs.h>
+#include <ib_mad.h>
+
+enum {
+       IB_SA_CLASS_VERSION     = 2,    /* IB spec version 1.1/1.2 */
+
+       IB_SA_METHOD_DELETE     = 0x15
+};
+
+enum ib_sa_selector {
+       IB_SA_GTE  = 0,
+       IB_SA_LTE  = 1,
+       IB_SA_EQ   = 2,
+       /*
+        * The meaning of "best" depends on the attribute: for
+        * example, for MTU best will return the largest available
+        * MTU, while for packet life time, best will return the
+        * smallest available life time.
+        */
+       IB_SA_BEST = 3
+};
+
+enum ib_sa_rate {
+       IB_SA_RATE_2_5_GBPS = 2,
+       IB_SA_RATE_5_GBPS   = 5,
+       IB_SA_RATE_10_GBPS  = 3,
+       IB_SA_RATE_20_GBPS  = 6,
+       IB_SA_RATE_30_GBPS  = 4,
+       IB_SA_RATE_40_GBPS  = 7,
+       IB_SA_RATE_60_GBPS  = 8,
+       IB_SA_RATE_80_GBPS  = 9,
+       IB_SA_RATE_120_GBPS = 10
+};
+
+static inline int ib_sa_rate_enum_to_int(enum ib_sa_rate rate)
+{
+       switch (rate) {
+       case IB_SA_RATE_2_5_GBPS: return  1;
+       case IB_SA_RATE_5_GBPS:   return  2;
+       case IB_SA_RATE_10_GBPS:  return  4;
+       case IB_SA_RATE_20_GBPS:  return  8;
+       case IB_SA_RATE_30_GBPS:  return 12;
+       case IB_SA_RATE_40_GBPS:  return 16;
+       case IB_SA_RATE_60_GBPS:  return 24;
+       case IB_SA_RATE_80_GBPS:  return 32;
+       case IB_SA_RATE_120_GBPS: return 48;
+       default:                  return -1;
+       }
+}
+
+typedef u64 __bitwise ib_sa_comp_mask;
+
+#define IB_SA_COMP_MASK(n)     ((__force ib_sa_comp_mask) cpu_to_be64(1ull << n))
+
+/*
+ * Structures for SA records are named "struct ib_sa_xxx_rec."  No
+ * attempt is made to pack structures to match the physical layout of
+ * SA records in SA MADs; all packing and unpacking is handled by the
+ * SA query code.
+ *
+ * For a record with structure ib_sa_xxx_rec, the naming convention
+ * for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
+ * never use different abbreviations or otherwise change the spelling
+ * of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
+ *
+ * Reserved rows are indicated with comments to help maintainability.
+ */
+
+/* reserved:                                                            0 */
+/* reserved:                                                            1 */
+#define IB_SA_PATH_REC_DGID                            IB_SA_COMP_MASK( 2)
+#define IB_SA_PATH_REC_SGID                            IB_SA_COMP_MASK( 3)
+#define IB_SA_PATH_REC_DLID                            IB_SA_COMP_MASK( 4)
+#define IB_SA_PATH_REC_SLID                            IB_SA_COMP_MASK( 5)
+#define IB_SA_PATH_REC_RAW_TRAFFIC                     IB_SA_COMP_MASK( 6)
+/* reserved:                                                            7 */
+#define IB_SA_PATH_REC_FLOW_LABEL                      IB_SA_COMP_MASK( 8)
+#define IB_SA_PATH_REC_HOP_LIMIT                       IB_SA_COMP_MASK( 9)
+#define IB_SA_PATH_REC_TRAFFIC_CLASS                   IB_SA_COMP_MASK(10)
+#define IB_SA_PATH_REC_REVERSIBLE                      IB_SA_COMP_MASK(11)
+#define IB_SA_PATH_REC_NUMB_PATH                       IB_SA_COMP_MASK(12)
+#define IB_SA_PATH_REC_PKEY                            IB_SA_COMP_MASK(13)
+/* reserved:                                                           14 */
+#define IB_SA_PATH_REC_SL                              IB_SA_COMP_MASK(15)
+#define IB_SA_PATH_REC_MTU_SELECTOR                    IB_SA_COMP_MASK(16)
+#define IB_SA_PATH_REC_MTU                             IB_SA_COMP_MASK(17)
+#define IB_SA_PATH_REC_RATE_SELECTOR                   IB_SA_COMP_MASK(18)
+#define IB_SA_PATH_REC_RATE                            IB_SA_COMP_MASK(19)
+#define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR       IB_SA_COMP_MASK(20)
+#define IB_SA_PATH_REC_PACKET_LIFE_TIME                        IB_SA_COMP_MASK(21)
+#define IB_SA_PATH_REC_PREFERENCE                      IB_SA_COMP_MASK(22)
+
+struct ib_sa_path_rec {
+       /* reserved */
+       /* reserved */
+       union ib_gid dgid;
+       union ib_gid sgid;
+       u16          dlid;
+       u16          slid;
+       int          raw_traffic;
+       /* reserved */
+       u32          flow_label;
+       u8           hop_limit;
+       u8           traffic_class;
+       int          reversible;
+       u8           numb_path;
+       u16          pkey;
+       /* reserved */
+       u8           sl;
+       u8           mtu_selector;
+       enum ib_mtu  mtu;
+       u8           rate_selector;
+       u8           rate;
+       u8           packet_life_time_selector;
+       u8           packet_life_time;
+       u8           preference;
+};
+
+#define IB_SA_MCMEMBER_REC_MGID                                IB_SA_COMP_MASK( 0)
+#define IB_SA_MCMEMBER_REC_PORT_GID                    IB_SA_COMP_MASK( 1)
+#define IB_SA_MCMEMBER_REC_QKEY                                IB_SA_COMP_MASK( 2)
+#define IB_SA_MCMEMBER_REC_MLID                                IB_SA_COMP_MASK( 3)
+#define IB_SA_MCMEMBER_REC_MTU_SELECTOR                        IB_SA_COMP_MASK( 4)
+#define IB_SA_MCMEMBER_REC_MTU                         IB_SA_COMP_MASK( 5)
+#define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS               IB_SA_COMP_MASK( 6)
+#define IB_SA_MCMEMBER_REC_PKEY                                IB_SA_COMP_MASK( 7)
+#define IB_SA_MCMEMBER_REC_RATE_SELECTOR               IB_SA_COMP_MASK( 8)
+#define IB_SA_MCMEMBER_REC_RATE                                IB_SA_COMP_MASK( 9)
+#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR   IB_SA_COMP_MASK(10)
+#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME            IB_SA_COMP_MASK(11)
+#define IB_SA_MCMEMBER_REC_SL                          IB_SA_COMP_MASK(12)
+#define IB_SA_MCMEMBER_REC_FLOW_LABEL                  IB_SA_COMP_MASK(13)
+#define IB_SA_MCMEMBER_REC_HOP_LIMIT                   IB_SA_COMP_MASK(14)
+#define IB_SA_MCMEMBER_REC_SCOPE                       IB_SA_COMP_MASK(15)
+#define IB_SA_MCMEMBER_REC_JOIN_STATE                  IB_SA_COMP_MASK(16)
+#define IB_SA_MCMEMBER_REC_PROXY_JOIN                  IB_SA_COMP_MASK(17)
+
+struct ib_sa_mcmember_rec {
+       union ib_gid mgid;
+       union ib_gid port_gid;
+       u32          qkey;
+       u16          mlid;
+       u8           mtu_selector;
+       enum         ib_mtu mtu;
+       u8           traffic_class;
+       u16          pkey;
+       u8           rate_selector;
+       u8           rate;
+       u8           packet_life_time_selector;
+       u8           packet_life_time;
+       u8           sl;
+       u32          flow_label;
+       u8           hop_limit;
+       u8           scope;
+       u8           join_state;
+       int          proxy_join;
+};
+
+struct ib_sa_query;
+
+void ib_sa_cancel_query(int id, struct ib_sa_query *query);
+
+int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
+                      struct ib_sa_path_rec *rec,
+                      ib_sa_comp_mask comp_mask,
+                      int timeout_ms, int gfp_mask,
+                      void (*callback)(int status,
+                                       struct ib_sa_path_rec *resp,
+                                       void *context),
+                      void *context,
+                      struct ib_sa_query **query);
+
+int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
+                            u8 method,
+                            struct ib_sa_mcmember_rec *rec,
+                            ib_sa_comp_mask comp_mask,
+                            int timeout_ms, int gfp_mask,
+                            void (*callback)(int status,
+                                             struct ib_sa_mcmember_rec *resp,
+                                             void *context),
+                            void *context,
+                            struct ib_sa_query **query);
+
+/**
+ * ib_sa_mcmember_rec_set - Start an MCMember set query
+ * @device:device to send query on
+ * @port_num: port number to send query on
+ * @rec:MCMember Record to send in query
+ * @comp_mask:component mask to send in query
+ * @timeout_ms:time to wait for response
+ * @gfp_mask:GFP mask to use for internal allocations
+ * @callback:function called when query completes, times out or is
+ * canceled
+ * @context:opaque user context passed to callback
+ * @sa_query:query context, used to cancel query
+ *
+ * Send an MCMember Set query to the SA (eg to join a multicast
+ * group).  The callback function will be called when the query
+ * completes (or fails); status is 0 for a successful response, -EINTR
+ * if the query is canceled, -ETIMEDOUT is the query timed out, or
+ * -EIO if an error occurred sending the query.  The resp parameter of
+ * the callback is only valid if status is 0.
+ *
+ * If the return value of ib_sa_mcmember_rec_set() is negative, it is
+ * an error code.  Otherwise it is a query ID that can be used to
+ * cancel the query.
+ */
+static inline int
+ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num,
+                      struct ib_sa_mcmember_rec *rec,
+                      ib_sa_comp_mask comp_mask,
+                      int timeout_ms, int gfp_mask,
+                      void (*callback)(int status,
+                                       struct ib_sa_mcmember_rec *resp,
+                                       void *context),
+                      void *context,
+                      struct ib_sa_query **query)
+{
+       return ib_sa_mcmember_rec_query(device, port_num,
+                                       IB_MGMT_METHOD_SET,
+                                       rec, comp_mask,
+                                       timeout_ms, gfp_mask, callback,
+                                       context, query);
+}
+
+/**
+ * ib_sa_mcmember_rec_delete - Start an MCMember delete query
+ * @device:device to send query on
+ * @port_num: port number to send query on
+ * @rec:MCMember Record to send in query
+ * @comp_mask:component mask to send in query
+ * @timeout_ms:time to wait for response
+ * @gfp_mask:GFP mask to use for internal allocations
+ * @callback:function called when query completes, times out or is
+ * canceled
+ * @context:opaque user context passed to callback
+ * @sa_query:query context, used to cancel query
+ *
+ * Send an MCMember Delete query to the SA (eg to leave a multicast
+ * group).  The callback function will be called when the query
+ * completes (or fails); status is 0 for a successful response, -EINTR
+ * if the query is canceled, -ETIMEDOUT is the query timed out, or
+ * -EIO if an error occurred sending the query.  The resp parameter of
+ * the callback is only valid if status is 0.
+ *
+ * If the return value of ib_sa_mcmember_rec_delete() is negative, it
+ * is an error code.  Otherwise it is a query ID that can be used to
+ * cancel the query.
+ */
+static inline int
+ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num,
+                         struct ib_sa_mcmember_rec *rec,
+                         ib_sa_comp_mask comp_mask,
+                         int timeout_ms, int gfp_mask,
+                         void (*callback)(int status,
+                                          struct ib_sa_mcmember_rec *resp,
+                                          void *context),
+                         void *context,
+                         struct ib_sa_query **query)
+{
+       return ib_sa_mcmember_rec_query(device, port_num,
+                                       IB_SA_METHOD_DELETE,
+                                       rec, comp_mask,
+                                       timeout_ms, gfp_mask, callback,
+                                       context, query);
+}
+
+
+#endif /* IB_SA_H */