* 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, 2006 Cisco Systems. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 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
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/kref.h>
+#include <linux/list.h>
+#include <linux/rwsem.h>
#include <asm/atomic.h>
#include <asm/scatterlist.h>
u8 port_num; /* valid only for DR SMPs on switches */
};
-enum ib_cq_notify {
- IB_CQ_SOLICITED,
- IB_CQ_NEXT_COMP
+enum ib_cq_notify_flags {
+ IB_CQ_SOLICITED = 1 << 0,
+ IB_CQ_NEXT_COMP = 1 << 1,
+ IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP,
+ IB_CQ_REPORT_MISSED_EVENTS = 1 << 2,
};
enum ib_srq_attr_mask {
struct list_head qp_list;
struct list_head srq_list;
struct list_head ah_list;
+ int closing;
};
struct ib_uobject {
int live;
};
-struct ib_umem {
- unsigned long user_base;
- unsigned long virt_base;
- size_t length;
- int offset;
- int page_size;
- int writable;
- struct list_head chunk_list;
-};
-
-struct ib_umem_chunk {
- struct list_head list;
- int nents;
- int nmap;
- struct scatterlist page_list[0];
-};
-
struct ib_udata {
void __user *inbuf;
void __user *outbuf;
size_t outlen;
};
-#define IB_UMEM_MAX_PAGE_CHUNK \
- ((PAGE_SIZE - offsetof(struct ib_umem_chunk, page_list)) / \
- ((void *) &((struct ib_umem_chunk *) 0)->page_list[1] - \
- (void *) &((struct ib_umem_chunk *) 0)->page_list[0]))
-
-struct ib_umem_object {
- struct ib_uobject uobject;
- struct ib_umem umem;
-};
-
struct ib_pd {
struct ib_device *device;
struct ib_uobject *uobject;
spinlock_t client_data_lock;
struct ib_cache cache;
+ int *pkey_tbl_len;
+ int *gid_tbl_len;
u32 flags;
+ int num_comp_vectors;
+
struct iw_cm_verbs *iwcm;
int (*query_device)(struct ib_device *device,
struct ib_recv_wr *recv_wr,
struct ib_recv_wr **bad_recv_wr);
struct ib_cq * (*create_cq)(struct ib_device *device, int cqe,
+ int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata);
int (*destroy_cq)(struct ib_cq *cq);
struct ib_wc *wc);
int (*peek_cq)(struct ib_cq *cq, int wc_cnt);
int (*req_notify_cq)(struct ib_cq *cq,
- enum ib_cq_notify cq_notify);
+ enum ib_cq_notify_flags flags);
int (*req_ncomp_notif)(struct ib_cq *cq,
int wc_cnt);
struct ib_mr * (*get_dma_mr)(struct ib_pd *pd,
int mr_access_flags,
u64 *iova_start);
struct ib_mr * (*reg_user_mr)(struct ib_pd *pd,
- struct ib_umem *region,
+ u64 start, u64 length,
+ u64 virt_addr,
int mr_access_flags,
struct ib_udata *udata);
int (*query_mr)(struct ib_mr *mr,
u8 port_num, int port_modify_mask,
struct ib_port_modify *port_modify);
+int ib_find_gid(struct ib_device *device, union ib_gid *gid,
+ u8 *port_num, u16 *index);
+
+int ib_find_pkey(struct ib_device *device,
+ u8 port_num, u16 pkey, u16 *index);
+
/**
* ib_alloc_pd - Allocates an unused protection domain.
* @device: The device on which to allocate the protection domain.
* @cq_context: Context associated with the CQ returned to the user via
* the associated completion and event handlers.
* @cqe: The minimum size of the CQ.
+ * @comp_vector - Completion vector used to signal completion events.
+ * Must be >= 0 and < context->num_comp_vectors.
*
* Users can examine the cq structure to determine the actual CQ size.
*/
struct ib_cq *ib_create_cq(struct ib_device *device,
ib_comp_handler comp_handler,
void (*event_handler)(struct ib_event *, void *),
- void *cq_context, int cqe);
+ void *cq_context, int cqe, int comp_vector);
/**
* ib_resize_cq - Modifies the capacity of the CQ.
/**
* ib_req_notify_cq - Request completion notification on a CQ.
* @cq: The CQ to generate an event for.
- * @cq_notify: If set to %IB_CQ_SOLICITED, completion notification will
- * occur on the next solicited event. If set to %IB_CQ_NEXT_COMP,
- * notification will occur on the next completion.
+ * @flags:
+ * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP
+ * to request an event on the next solicited event or next work
+ * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS
+ * may also be |ed in to request a hint about missed events, as
+ * described below.
+ *
+ * Return Value:
+ * < 0 means an error occurred while requesting notification
+ * == 0 means notification was requested successfully, and if
+ * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events
+ * were missed and it is safe to wait for another event. In
+ * this case is it guaranteed that any work completions added
+ * to the CQ since the last CQ poll will trigger a completion
+ * notification event.
+ * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed
+ * in. It means that the consumer must poll the CQ again to
+ * make sure it is empty to avoid missing an event because of a
+ * race between requesting notification and an entry being
+ * added to the CQ. This return value means it is possible
+ * (but not guaranteed) that a work completion has been added
+ * to the CQ since the last poll without triggering a
+ * completion notification event.
*/
static inline int ib_req_notify_cq(struct ib_cq *cq,
- enum ib_cq_notify cq_notify)
+ enum ib_cq_notify_flags flags)
{
- return cq->device->req_notify_cq(cq, cq_notify);
+ return cq->device->req_notify_cq(cq, flags);
}
/**
projects / linux-2.6-omap-h63xx.git / blobdiff