Merge branch 'linus'

4 files changed, 139 insertions, 28 deletions

diff --git a/include/rdma/ib_fmr_pool.h b/include/rdma/ib_fmr_pool.h
index 86b7e93f198b..4ace54cd0cce 100644
--- a/include/rdma/ib_fmr_pool.h
+++ b/include/rdma/ib_fmr_pool.h
@@ -43,6 +43,7 @@ struct ib_fmr_pool;
 /**
  * struct ib_fmr_pool_param - Parameters for creating FMR pool
  * @max_pages_per_fmr:Maximum number of pages per map request.
+ * @page_shift: Log2 of sizeof "pages" mapped by this fmr
  * @access:Access flags for FMRs in pool.
  * @pool_size:Number of FMRs to allocate for pool.
  * @dirty_watermark:Flush is triggered when @dirty_watermark dirty
@@ -55,6 +56,7 @@ struct ib_fmr_pool;
  */
 struct ib_fmr_pool_param {
         int                     max_pages_per_fmr;
+        int                     page_shift;
         enum ib_access_flags    access;
         int                     pool_size;
         int                     dirty_watermark;
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index 2c133506742b..51ab8eddb295 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -33,7 +33,7 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  *
- * $Id: ib_mad.h 2775 2005-07-02 13:42:12Z halr $
+ * $Id: ib_mad.h 5596 2006-03-03 01:00:07Z sean.hefty $
  */
 
 #if !defined( IB_MAD_H )
@@ -208,15 +208,23 @@ struct ib_class_port_info
 /**
  * ib_mad_send_buf - MAD data buffer and work request for sends.
  * @next: A pointer used to chain together MADs for posting.
- * @mad: References an allocated MAD data buffer.
+ * @mad: References an allocated MAD data buffer for MADs that do not have
+ *   RMPP active.  For MADs using RMPP, references the common and management
+ *   class specific headers.
  * @mad_agent: MAD agent that allocated the buffer.
  * @ah: The address handle to use when sending the MAD.
  * @context: User-controlled context fields.
+ * @hdr_len: Indicates the size of the data header of the MAD.  This length
+ *   includes the common MAD, RMPP, and class specific headers.
+ * @data_len: Indicates the total size of user-transferred data.
+ * @seg_count: The number of RMPP segments allocated for this send.
+ * @seg_size: Size of each RMPP segment.
  * @timeout_ms: Time to wait for a response.
  * @retries: Number of times to retry a request for a response.
  *
  * Users are responsible for initializing the MAD buffer itself, with the
- * exception of specifying the payload length field in any RMPP MAD.
+ * exception of any RMPP header.  Additional segment buffer space allocated
+ * beyond data_len is padding.
  */
 struct ib_mad_send_buf {
         struct ib_mad_send_buf  *next;
@@ -224,6 +232,10 @@ struct ib_mad_send_buf {
         struct ib_mad_agent     *mad_agent;
         struct ib_ah            *ah;
         void                    *context[2];
+        int                     hdr_len;
+        int                     data_len;
+        int                     seg_count;
+        int                     seg_size;
         int                     timeout_ms;
         int                     retries;
 };
@@ -299,7 +311,7 @@ typedef void (*ib_mad_snoop_handler)(struct ib_mad_agent *mad_agent,
  * @mad_recv_wc: Received work completion information on the received MAD.
  *
  * MADs received in response to a send request operation will be handed to
- * the user after the send operation completes.  All data buffers given
+ * the user before the send operation completes.  All data buffers given
  * to registered agents through this routine are owned by the receiving
  * client, except for snooping agents.  Clients snooping MADs should not
  * modify the data referenced by @mad_recv_wc.
@@ -485,17 +497,6 @@ int ib_unregister_mad_agent(struct ib_mad_agent *mad_agent);
 int ib_post_send_mad(struct ib_mad_send_buf *send_buf,
                      struct ib_mad_send_buf **bad_send_buf);
 
-/**
- * ib_coalesce_recv_mad - Coalesces received MAD data into a single buffer.
- * @mad_recv_wc: Work completion information for a received MAD.
- * @buf: User-provided data buffer to receive the coalesced buffers.  The
- *   referenced buffer should be at least the size of the mad_len specified
- *   by @mad_recv_wc.
- *
- * This call copies a chain of received MAD segments into a single data buffer,
- * removing duplicated headers.
- */
-void ib_coalesce_recv_mad(struct ib_mad_recv_wc *mad_recv_wc, void *buf);
 
 /**
  * ib_free_recv_mad - Returns data buffers used to receive a MAD.
@@ -590,9 +591,10 @@ int ib_process_mad_wc(struct ib_mad_agent *mad_agent,
  * with an initialized work request structure.  Users may modify the returned
  * MAD data buffer before posting the send.
  *
- * The returned data buffer will be cleared.  Users are responsible for
- * initializing the common MAD and any class specific headers.  If @rmpp_active
- * is set, the RMPP header will be initialized for sending.
+ * The returned MAD header, class specific headers, and any padding will be
+ * cleared.  Users are responsible for initializing the common MAD header,
+ * any class specific header, and MAD data area.
+ * If @rmpp_active is set, the RMPP header will be initialized for sending.
  */
 struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent,
                                             u32 remote_qpn, u16 pkey_index,
@@ -601,6 +603,16 @@ struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent,
                                             gfp_t gfp_mask);
 
 /**
+ * ib_get_rmpp_segment - returns the data buffer for a given RMPP segment.
+ * @send_buf: Previously allocated send data buffer.
+ * @seg_num: number of segment to return
+ *
+ * This routine returns a pointer to the data buffer of an RMPP MAD.
+ * Users must provide synchronization to @send_buf around this call.
+ */
+void *ib_get_rmpp_segment(struct ib_mad_send_buf *send_buf, int seg_num);
+
+/**
  * ib_free_send_mad - Returns data buffers used to send a MAD.
  * @send_buf: Previously allocated send data buffer.
  */
diff --git a/include/rdma/ib_user_verbs.h b/include/rdma/ib_user_verbs.h
index 5ff1490c08db..338ed4333063 100644
--- a/include/rdma/ib_user_verbs.h
+++ b/include/rdma/ib_user_verbs.h
@@ -1,7 +1,8 @@
 /*
  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
- * Copyright (c) 2005 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
  * Copyright (c) 2005 PathScale, Inc.  All rights reserved.
+ * Copyright (c) 2006 Mellanox Technologies.  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
@@ -43,7 +44,7 @@
  * Increment this value if any changes that break userspace ABI
  * compatibility are made.
  */
-#define IB_USER_VERBS_ABI_VERSION       4
+#define IB_USER_VERBS_ABI_VERSION       6
 
 enum {
         IB_USER_VERBS_CMD_GET_CONTEXT,
@@ -265,6 +266,17 @@ struct ib_uverbs_create_cq_resp {
         __u32 cqe;
 };
 
+struct ib_uverbs_resize_cq {
+        __u64 response;
+        __u32 cq_handle;
+        __u32 cqe;
+        __u64 driver_data[0];
+};
+
+struct ib_uverbs_resize_cq_resp {
+        __u32 cqe;
+};
+
 struct ib_uverbs_poll_cq {
         __u64 response;
         __u32 cq_handle;
@@ -338,6 +350,7 @@ struct ib_uverbs_create_qp_resp {
         __u32 max_send_sge;
         __u32 max_recv_sge;
         __u32 max_inline_data;
+        __u32 reserved;
 };
 
 /*
@@ -359,6 +372,47 @@ struct ib_uverbs_qp_dest {
         __u8  port_num;
 };
 
+struct ib_uverbs_query_qp {
+        __u64 response;
+        __u32 qp_handle;
+        __u32 attr_mask;
+        __u64 driver_data[0];
+};
+
+struct ib_uverbs_query_qp_resp {
+        struct ib_uverbs_qp_dest dest;
+        struct ib_uverbs_qp_dest alt_dest;
+        __u32 max_send_wr;
+        __u32 max_recv_wr;
+        __u32 max_send_sge;
+        __u32 max_recv_sge;
+        __u32 max_inline_data;
+        __u32 qkey;
+        __u32 rq_psn;
+        __u32 sq_psn;
+        __u32 dest_qp_num;
+        __u32 qp_access_flags;
+        __u16 pkey_index;
+        __u16 alt_pkey_index;
+        __u8  qp_state;
+        __u8  cur_qp_state;
+        __u8  path_mtu;
+        __u8  path_mig_state;
+        __u8  en_sqd_async_notify;
+        __u8  max_rd_atomic;
+        __u8  max_dest_rd_atomic;
+        __u8  min_rnr_timer;
+        __u8  port_num;
+        __u8  timeout;
+        __u8  retry_cnt;
+        __u8  rnr_retry;
+        __u8  alt_port_num;
+        __u8  alt_timeout;
+        __u8  sq_sig_all;
+        __u8  reserved[5];
+        __u64 driver_data[0];
+};
+
 struct ib_uverbs_modify_qp {
         struct ib_uverbs_qp_dest dest;
         struct ib_uverbs_qp_dest alt_dest;
@@ -415,7 +469,7 @@ struct ib_uverbs_sge {
 };
 
 struct ib_uverbs_send_wr {
-        __u64 wr_id; 
+        __u64 wr_id;
         __u32 num_sge;
         __u32 opcode;
         __u32 send_flags;
@@ -489,7 +543,7 @@ struct ib_uverbs_post_srq_recv_resp {
 
 struct ib_uverbs_global_route {
         __u8  dgid[16];
-        __u32 flow_label;    
+        __u32 flow_label;
         __u8  sgid_index;
         __u8  hop_limit;
         __u8  traffic_class;
@@ -551,6 +605,9 @@ struct ib_uverbs_create_srq {
 
 struct ib_uverbs_create_srq_resp {
         __u32 srq_handle;
+        __u32 max_wr;
+        __u32 max_sge;
+        __u32 reserved;
 };
 
 struct ib_uverbs_modify_srq {
@@ -561,6 +618,20 @@ struct ib_uverbs_modify_srq {
         __u64 driver_data[0];
 };
 
+struct ib_uverbs_query_srq {
+        __u64 response;
+        __u32 srq_handle;
+        __u32 reserved;
+        __u64 driver_data[0];
+};
+
+struct ib_uverbs_query_srq_resp {
+        __u32 max_wr;
+        __u32 max_sge;
+        __u32 srq_limit;
+        __u32 reserved;
+};
+
 struct ib_uverbs_destroy_srq {
         __u64 response;
         __u32 srq_handle;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 22fc886b9695..c1ad6273ac6c 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -5,7 +5,7 @@
  * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
  * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
- * Copyright (c) 2005 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005, 2006 Cisco Systems.  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
@@ -222,11 +222,13 @@ struct ib_port_attr {
 };
 
 enum ib_device_modify_flags {
-        IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1
+        IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0,
+        IB_DEVICE_MODIFY_NODE_DESC      = 1 << 1
 };
 
 struct ib_device_modify {
         u64     sys_image_guid;
+        char    node_desc[64];
 };
 
 enum ib_port_modify_flags {
@@ -649,7 +651,7 @@ struct ib_mw_bind {
 struct ib_fmr_attr {
         int     max_pages;
         int     max_maps;
-        u8      page_size;
+        u8      page_shift;
 };
 
 struct ib_ucontext {
@@ -880,7 +882,8 @@ struct ib_device {
                                                 struct ib_ucontext *context,
                                                 struct ib_udata *udata);
         int                        (*destroy_cq)(struct ib_cq *cq);
-        int                        (*resize_cq)(struct ib_cq *cq, int cqe);
+        int                        (*resize_cq)(struct ib_cq *cq, int cqe,
+                                                struct ib_udata *udata);
         int                        (*poll_cq)(struct ib_cq *cq, int num_entries,
                                               struct ib_wc *wc);
         int                        (*peek_cq)(struct ib_cq *cq, int wc_cnt);
@@ -950,6 +953,7 @@ struct ib_device {
         u64                          uverbs_cmd_mask;
         int                          uverbs_abi_ver;
 
+        char                         node_desc[64];
         __be64                       node_guid;
         u8                           node_type;
         u8                           phys_port_cnt;
@@ -986,6 +990,24 @@ static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len
         return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0;
 }
 
+/**
+ * ib_modify_qp_is_ok - Check that the supplied attribute mask
+ * contains all required attributes and no attributes not allowed for
+ * the given QP state transition.
+ * @cur_state: Current QP state
+ * @next_state: Next QP state
+ * @type: QP type
+ * @mask: Mask of supplied QP attributes
+ *
+ * This function is a helper function that a low-level driver's
+ * modify_qp method can use to validate the consumer's input.  It
+ * checks that cur_state and next_state are valid QP states, that a
+ * transition from cur_state to next_state is allowed by the IB spec,
+ * and that the attribute mask supplied is allowed for the transition.
+ */
+int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state,
+                       enum ib_qp_type type, enum ib_qp_attr_mask mask);
+
 int ib_register_event_handler  (struct ib_event_handler *event_handler);
 int ib_unregister_event_handler(struct ib_event_handler *event_handler);
 void ib_dispatch_event(struct ib_event *event);
@@ -1078,7 +1100,9 @@ int ib_destroy_ah(struct ib_ah *ah);
  * ib_create_srq - Creates a SRQ associated with the specified protection
  *   domain.
  * @pd: The protection domain associated with the SRQ.
- * @srq_init_attr: A list of initial attributes required to create the SRQ.
+ * @srq_init_attr: A list of initial attributes required to create the
+ *   SRQ.  If SRQ creation succeeds, then the attributes are updated to
+ *   the actual capabilities of the created SRQ.
  *
  * srq_attr->max_wr and srq_attr->max_sge are read the determine the
  * requested size of the SRQ, and set to the actual values allocated
@@ -1137,7 +1161,9 @@ static inline int ib_post_srq_recv(struct ib_srq *srq,
  * ib_create_qp - Creates a QP associated with the specified protection
  *   domain.
  * @pd: The protection domain associated with the QP.
- * @qp_init_attr: A list of initial attributes required to create the QP.
+ * @qp_init_attr: A list of initial attributes required to create the
+ *   QP.  If QP creation succeeds, then the attributes are updated to
+ *   the actual capabilities of the created QP.
  */
 struct ib_qp *ib_create_qp(struct ib_pd *pd,
                            struct ib_qp_init_attr *qp_init_attr);