summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/qib/qib_verbs.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_verbs.h')
-rw-r--r--drivers/infiniband/hw/qib/qib_verbs.h56
1 files changed, 41 insertions, 15 deletions
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h
index 48760602465..aff8b2c1788 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.h
+++ b/drivers/infiniband/hw/qib/qib_verbs.h
@@ -1,6 +1,6 @@
/*
- * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation.
- * All rights reserved.
+ * Copyright (c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
* Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
@@ -41,6 +41,7 @@
#include <linux/interrupt.h>
#include <linux/kref.h>
#include <linux/workqueue.h>
+#include <linux/completion.h>
#include <rdma/ib_pack.h>
#include <rdma/ib_user_verbs.h>
@@ -302,6 +303,9 @@ struct qib_mregion {
u32 max_segs; /* number of qib_segs in all the arrays */
u32 mapsz; /* size of the map array */
u8 page_shift; /* 0 - non unform/non powerof2 sizes */
+ u8 lkey_published; /* in global table */
+ struct completion comp; /* complete when refcount goes to zero */
+ struct rcu_head list;
atomic_t refcount;
struct qib_segarray *map[0]; /* the segments */
};
@@ -416,7 +420,7 @@ struct qib_qp {
/* read mostly fields above and below */
struct ib_ah_attr remote_ah_attr;
struct ib_ah_attr alt_ah_attr;
- struct qib_qp *next; /* link list for QPN hash table */
+ struct qib_qp __rcu *next; /* link list for QPN hash table */
struct qib_swqe *s_wq; /* send work queue */
struct qib_mmap_info *ip;
struct qib_ib_header *s_hdr; /* next packet header to send */
@@ -646,7 +650,7 @@ struct qib_lkey_table {
u32 next; /* next unused index (speeds search) */
u32 gen; /* generation count */
u32 max; /* size of the table */
- struct qib_mregion **table;
+ struct qib_mregion __rcu **table;
};
struct qib_opcode_stats {
@@ -655,8 +659,8 @@ struct qib_opcode_stats {
};
struct qib_ibport {
- struct qib_qp *qp0;
- struct qib_qp *qp1;
+ struct qib_qp __rcu *qp0;
+ struct qib_qp __rcu *qp1;
struct ib_mad_agent *send_agent; /* agent for SMI (traps) */
struct qib_ah *sm_ah;
struct qib_ah *smi_ah;
@@ -723,12 +727,13 @@ struct qib_ibport {
struct qib_opcode_stats opstats[128];
};
+
struct qib_ibdev {
struct ib_device ibdev;
struct list_head pending_mmaps;
spinlock_t mmap_offset_lock; /* protect mmap_offset */
u32 mmap_offset;
- struct qib_mregion *dma_mr;
+ struct qib_mregion __rcu *dma_mr;
/* QP numbers are shared by all IB ports */
struct qib_qpn_table qpn_table;
@@ -739,7 +744,7 @@ struct qib_ibdev {
struct list_head memwait; /* list for wait kernel memory */
struct list_head txreq_free;
struct timer_list mem_timer;
- struct qib_qp **qp_table;
+ struct qib_qp __rcu **qp_table;
struct qib_pio_header *pio_hdrs;
dma_addr_t pio_hdrs_phys;
/* list of QPs waiting for RNR timer */
@@ -832,11 +837,7 @@ extern struct workqueue_struct *qib_cq_wq;
/*
* This must be called with s_lock held.
*/
-static inline void qib_schedule_send(struct qib_qp *qp)
-{
- if (qib_send_ok(qp))
- queue_work(ib_wq, &qp->s_work);
-}
+void qib_schedule_send(struct qib_qp *qp);
static inline int qib_pkey_ok(u16 pkey1, u16 pkey2)
{
@@ -933,6 +934,8 @@ void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
int qib_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);
+struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid);
+
void qib_rc_rnr_retry(unsigned long arg);
void qib_rc_send_complete(struct qib_qp *qp, struct qib_ib_header *hdr);
@@ -944,9 +947,9 @@ int qib_post_ud_send(struct qib_qp *qp, struct ib_send_wr *wr);
void qib_ud_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
int has_grh, void *data, u32 tlen, struct qib_qp *qp);
-int qib_alloc_lkey(struct qib_lkey_table *rkt, struct qib_mregion *mr);
+int qib_alloc_lkey(struct qib_mregion *mr, int dma_region);
-int qib_free_lkey(struct qib_ibdev *dev, struct qib_mregion *mr);
+void qib_free_lkey(struct qib_mregion *mr);
int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd,
struct qib_sge *isge, struct ib_sge *sge, int acc);
@@ -1014,6 +1017,29 @@ int qib_unmap_fmr(struct list_head *fmr_list);
int qib_dealloc_fmr(struct ib_fmr *ibfmr);
+static inline void qib_get_mr(struct qib_mregion *mr)
+{
+ atomic_inc(&mr->refcount);
+}
+
+void mr_rcu_callback(struct rcu_head *list);
+
+static inline void qib_put_mr(struct qib_mregion *mr)
+{
+ if (unlikely(atomic_dec_and_test(&mr->refcount)))
+ call_rcu(&mr->list, mr_rcu_callback);
+}
+
+static inline void qib_put_ss(struct qib_sge_state *ss)
+{
+ while (ss->num_sge) {
+ qib_put_mr(ss->sge.mr);
+ if (--ss->num_sge)
+ ss->sge = *ss->sg_list++;
+ }
+}
+
+
void qib_release_mmap_info(struct kref *ref);
struct qib_mmap_info *qib_create_mmap_info(struct qib_ibdev *dev, u32 size,