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authorSagi Grimberg <sagig@mellanox.com>2015-10-29 17:33:31 +0200
committerDoug Ledford <dledford@redhat.com>2015-10-29 11:42:34 -0400
commit349abd059ed195c75b5f787102a333a4dae10775 (patch)
treeb9b76feff4da0d4a0f7f6779dacb1778c8a90995 /drivers/staging
parent13d3e895faf68ab5f1981298198897a20b35827a (diff)
IB/hfi1: Remove fast registration from the code
The driver does not support it anyway, and the support should be added to a generic layer shared by both hfi1, qib and softroce drivers. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/rdma/hfi1/keys.c55
-rw-r--r--drivers/staging/rdma/hfi1/mr.c33
-rw-r--r--drivers/staging/rdma/hfi1/verbs.c9
-rw-r--r--drivers/staging/rdma/hfi1/verbs.h8
4 files changed, 3 insertions, 102 deletions
diff --git a/drivers/staging/rdma/hfi1/keys.c b/drivers/staging/rdma/hfi1/keys.c
index 82c21b1c0263..cb4e6087dfdb 100644
--- a/drivers/staging/rdma/hfi1/keys.c
+++ b/drivers/staging/rdma/hfi1/keys.c
@@ -354,58 +354,3 @@ bail:
rcu_read_unlock();
return 0;
}
-
-/*
- * Initialize the memory region specified by the work request.
- */
-int hfi1_fast_reg_mr(struct hfi1_qp *qp, struct ib_fast_reg_wr *wr)
-{
- struct hfi1_lkey_table *rkt = &to_idev(qp->ibqp.device)->lk_table;
- struct hfi1_pd *pd = to_ipd(qp->ibqp.pd);
- struct hfi1_mregion *mr;
- u32 rkey = wr->rkey;
- unsigned i, n, m;
- int ret = -EINVAL;
- unsigned long flags;
- u64 *page_list;
- size_t ps;
-
- spin_lock_irqsave(&rkt->lock, flags);
- if (pd->user || rkey == 0)
- goto bail;
-
- mr = rcu_dereference_protected(
- rkt->table[(rkey >> (32 - hfi1_lkey_table_size))],
- lockdep_is_held(&rkt->lock));
- if (unlikely(mr == NULL || qp->ibqp.pd != mr->pd))
- goto bail;
-
- if (wr->page_list_len > mr->max_segs)
- goto bail;
-
- ps = 1UL << wr->page_shift;
- if (wr->length > ps * wr->page_list_len)
- goto bail;
-
- mr->user_base = wr->iova_start;
- mr->iova = wr->iova_start;
- mr->lkey = rkey;
- mr->length = wr->length;
- mr->access_flags = wr->access_flags;
- page_list = wr->page_list->page_list;
- m = 0;
- n = 0;
- for (i = 0; i < wr->page_list_len; i++) {
- mr->map[m]->segs[n].vaddr = (void *) page_list[i];
- mr->map[m]->segs[n].length = ps;
- if (++n == HFI1_SEGSZ) {
- m++;
- n = 0;
- }
- }
-
- ret = 0;
-bail:
- spin_unlock_irqrestore(&rkt->lock, flags);
- return ret;
-}
diff --git a/drivers/staging/rdma/hfi1/mr.c b/drivers/staging/rdma/hfi1/mr.c
index bd64e4f986f9..402bd6414176 100644
--- a/drivers/staging/rdma/hfi1/mr.c
+++ b/drivers/staging/rdma/hfi1/mr.c
@@ -344,9 +344,10 @@ out:
/*
* Allocate a memory region usable with the
- * IB_WR_FAST_REG_MR send work request.
+ * IB_WR_REG_MR send work request.
*
* Return the memory region on success, otherwise return an errno.
+ * FIXME: IB_WR_REG_MR is not supported
*/
struct ib_mr *hfi1_alloc_mr(struct ib_pd *pd,
enum ib_mr_type mr_type,
@@ -364,36 +365,6 @@ struct ib_mr *hfi1_alloc_mr(struct ib_pd *pd,
return &mr->ibmr;
}
-struct ib_fast_reg_page_list *
-hfi1_alloc_fast_reg_page_list(struct ib_device *ibdev, int page_list_len)
-{
- unsigned size = page_list_len * sizeof(u64);
- struct ib_fast_reg_page_list *pl;
-
- if (size > PAGE_SIZE)
- return ERR_PTR(-EINVAL);
-
- pl = kzalloc(sizeof(*pl), GFP_KERNEL);
- if (!pl)
- return ERR_PTR(-ENOMEM);
-
- pl->page_list = kzalloc(size, GFP_KERNEL);
- if (!pl->page_list)
- goto err_free;
-
- return pl;
-
-err_free:
- kfree(pl);
- return ERR_PTR(-ENOMEM);
-}
-
-void hfi1_free_fast_reg_page_list(struct ib_fast_reg_page_list *pl)
-{
- kfree(pl->page_list);
- kfree(pl);
-}
-
/**
* hfi1_alloc_fmr - allocate a fast memory region
* @pd: the protection domain for this memory region
diff --git a/drivers/staging/rdma/hfi1/verbs.c b/drivers/staging/rdma/hfi1/verbs.c
index 981e6c1b79a3..6e2da7ee6d2f 100644
--- a/drivers/staging/rdma/hfi1/verbs.c
+++ b/drivers/staging/rdma/hfi1/verbs.c
@@ -380,9 +380,7 @@ static int post_one_send(struct hfi1_qp *qp, struct ib_send_wr *wr)
* undefined operations.
* Make sure buffer is large enough to hold the result for atomics.
*/
- if (wr->opcode == IB_WR_FAST_REG_MR) {
- return -EINVAL;
- } else if (qp->ibqp.qp_type == IB_QPT_UC) {
+ if (qp->ibqp.qp_type == IB_QPT_UC) {
if ((unsigned) wr->opcode >= IB_WR_RDMA_READ)
return -EINVAL;
} else if (qp->ibqp.qp_type != IB_QPT_RC) {
@@ -417,9 +415,6 @@ static int post_one_send(struct hfi1_qp *qp, struct ib_send_wr *wr)
if (qp->ibqp.qp_type != IB_QPT_UC &&
qp->ibqp.qp_type != IB_QPT_RC)
memcpy(&wqe->ud_wr, ud_wr(wr), sizeof(wqe->ud_wr));
- else if (wr->opcode == IB_WR_FAST_REG_MR)
- memcpy(&wqe->fast_reg_wr, fast_reg_wr(wr),
- sizeof(wqe->fast_reg_wr));
else if (wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM ||
wr->opcode == IB_WR_RDMA_WRITE ||
wr->opcode == IB_WR_RDMA_READ)
@@ -2065,8 +2060,6 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
ibdev->reg_user_mr = hfi1_reg_user_mr;
ibdev->dereg_mr = hfi1_dereg_mr;
ibdev->alloc_mr = hfi1_alloc_mr;
- ibdev->alloc_fast_reg_page_list = hfi1_alloc_fast_reg_page_list;
- ibdev->free_fast_reg_page_list = hfi1_free_fast_reg_page_list;
ibdev->alloc_fmr = hfi1_alloc_fmr;
ibdev->map_phys_fmr = hfi1_map_phys_fmr;
ibdev->unmap_fmr = hfi1_unmap_fmr;
diff --git a/drivers/staging/rdma/hfi1/verbs.h b/drivers/staging/rdma/hfi1/verbs.h
index cf5a3c956284..159ec08bfcd8 100644
--- a/drivers/staging/rdma/hfi1/verbs.h
+++ b/drivers/staging/rdma/hfi1/verbs.h
@@ -353,7 +353,6 @@ struct hfi1_swqe {
struct ib_rdma_wr rdma_wr;
struct ib_atomic_wr atomic_wr;
struct ib_ud_wr ud_wr;
- struct ib_fast_reg_wr fast_reg_wr;
};
u32 psn; /* first packet sequence number */
u32 lpsn; /* last packet sequence number */
@@ -1026,13 +1025,6 @@ struct ib_mr *hfi1_alloc_mr(struct ib_pd *pd,
enum ib_mr_type mr_type,
u32 max_entries);
-struct ib_fast_reg_page_list *hfi1_alloc_fast_reg_page_list(
- struct ib_device *ibdev, int page_list_len);
-
-void hfi1_free_fast_reg_page_list(struct ib_fast_reg_page_list *pl);
-
-int hfi1_fast_reg_mr(struct hfi1_qp *qp, struct ib_fast_reg_wr *wr);
-
struct ib_fmr *hfi1_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
struct ib_fmr_attr *fmr_attr);