From: Mitko Haralanov <mitko.haralanov@xxxxxxxxx>
In preparation for adding the TID caching support, there is a set
of headers, structures, and variables which will be needed. This
commit adds them to the hfi.h header file.
Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Mitko Haralanov <mitko.haralanov@xxxxxxxxx>
---
drivers/staging/rdma/hfi1/hfi.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/staging/rdma/hfi1/hfi.h b/drivers/staging/rdma/hfi1/hfi.h
index 057a41cee734..996dd520cf41 100644
--- a/drivers/staging/rdma/hfi1/hfi.h
+++ b/drivers/staging/rdma/hfi1/hfi.h
@@ -179,6 +179,11 @@ struct ctxt_eager_bufs {
} *rcvtids;
};
+struct exp_tid_set {
+ struct list_head list;
+ u32 count;
+};
+
struct hfi1_ctxtdata {
/* shadow the ctxt's RcvCtrl register */
u64 rcvctrl;
@@ -247,6 +252,11 @@ struct hfi1_ctxtdata {
struct page **tid_pg_list;
/* dma handles for exp tid pages */
dma_addr_t *physshadow;
+
+ struct exp_tid_set tid_group_list;
+ struct exp_tid_set tid_used_list;
+ struct exp_tid_set tid_full_list;
+
/* lock protecting all Expected TID data */
spinlock_t exp_lock;
/* number of pio bufs for this ctxt (all procs, if shared) */
@@ -1138,6 +1148,16 @@ struct hfi1_filedata {
struct hfi1_user_sdma_pkt_q *pq;
/* for cpu affinity; -1 if none */
int rec_cpu_num;
+ struct mmu_notifier mn;
+ struct rb_root tid_rb_root;
+ spinlock_t tid_lock; /* protect tid_[limit,used] counters */
+ u32 tid_limit;
+ u32 tid_used;
+ spinlock_t rb_lock; /* protect tid_rb_root RB tree */
+ u32 *invalid_tids;
+ u32 invalid_tid_idx;
+ spinlock_t invalid_lock; /* protect the invalid_tids array */
+ int (*mmu_rb_insert)(struct rb_root *, struct mmu_rb_node *);
};
extern struct list_head hfi1_dev_list;
--
1.8.2
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