From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Wed, 20 Jan 2016 14:01:31 -0300 Subject: Linux-libre 4.4-gnu --- drivers/infiniband/hw/qib/qib_mr.c | 46 ++++++++++++++++++++------------------ 1 file changed, 24 insertions(+), 22 deletions(-) (limited to 'drivers/infiniband/hw/qib/qib_mr.c') diff --git a/drivers/infiniband/hw/qib/qib_mr.c b/drivers/infiniband/hw/qib/qib_mr.c index 19220dcb9..294f5c706 100644 --- a/drivers/infiniband/hw/qib/qib_mr.c +++ b/drivers/infiniband/hw/qib/qib_mr.c @@ -303,6 +303,7 @@ int qib_dereg_mr(struct ib_mr *ibmr) int ret = 0; unsigned long timeout; + kfree(mr->pages); qib_free_lkey(&mr->mr); qib_put_mr(&mr->mr); /* will set completion if last */ @@ -323,7 +324,7 @@ 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. */ @@ -340,37 +341,38 @@ struct ib_mr *qib_alloc_mr(struct ib_pd *pd, if (IS_ERR(mr)) return (struct ib_mr *)mr; + mr->pages = kcalloc(max_num_sg, sizeof(u64), GFP_KERNEL); + if (!mr->pages) + goto err; + return &mr->ibmr; + +err: + qib_dereg_mr(&mr->ibmr); + return ERR_PTR(-ENOMEM); } -struct ib_fast_reg_page_list * -qib_alloc_fast_reg_page_list(struct ib_device *ibdev, int page_list_len) +static int qib_set_page(struct ib_mr *ibmr, u64 addr) { - 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); + struct qib_mr *mr = to_imr(ibmr); - pl->page_list = kzalloc(size, GFP_KERNEL); - if (!pl->page_list) - goto err_free; + if (unlikely(mr->npages == mr->mr.max_segs)) + return -ENOMEM; - return pl; + mr->pages[mr->npages++] = addr; -err_free: - kfree(pl); - return ERR_PTR(-ENOMEM); + return 0; } -void qib_free_fast_reg_page_list(struct ib_fast_reg_page_list *pl) +int qib_map_mr_sg(struct ib_mr *ibmr, + struct scatterlist *sg, + int sg_nents) { - kfree(pl->page_list); - kfree(pl); + struct qib_mr *mr = to_imr(ibmr); + + mr->npages = 0; + + return ib_sg_to_pages(ibmr, sg, sg_nents, qib_set_page); } /** -- cgit v1.2.3