From patchwork Wed Apr 19 05:51:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Daisuke Matsuda (Fujitsu)" X-Patchwork-Id: 13216389 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F51EC6FD18 for ; Wed, 19 Apr 2023 05:55:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230340AbjDSFzK (ORCPT ); Wed, 19 Apr 2023 01:55:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229688AbjDSFzJ (ORCPT ); Wed, 19 Apr 2023 01:55:09 -0400 X-Greylist: delayed 107 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 18 Apr 2023 22:54:38 PDT Received: from esa1.hc1455-7.c3s2.iphmx.com (esa1.hc1455-7.c3s2.iphmx.com [207.54.90.47]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD0AF6A65; Tue, 18 Apr 2023 22:54:38 -0700 (PDT) X-IronPort-AV: E=McAfee;i="6600,9927,10684"; a="113885396" X-IronPort-AV: E=Sophos;i="5.99,208,1677510000"; d="scan'208";a="113885396" Received: from unknown (HELO oym-r2.gw.nic.fujitsu.com) ([210.162.30.90]) by esa1.hc1455-7.c3s2.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2023 14:52:57 +0900 Received: from oym-m2.gw.nic.fujitsu.com (oym-nat-oym-m2.gw.nic.fujitsu.com [192.168.87.59]) by oym-r2.gw.nic.fujitsu.com (Postfix) with ESMTP id 03BE6D42C8; Wed, 19 Apr 2023 14:52:55 +0900 (JST) Received: from m3003.s.css.fujitsu.com (m3003.s.css.fujitsu.com [10.128.233.114]) by oym-m2.gw.nic.fujitsu.com (Postfix) with ESMTP id C9599BCB79; Wed, 19 Apr 2023 14:52:53 +0900 (JST) Received: from localhost.localdomain (unknown [10.118.237.106]) by m3003.s.css.fujitsu.com (Postfix) with ESMTP id 82D7C2005334; Wed, 19 Apr 2023 14:52:53 +0900 (JST) From: Daisuke Matsuda To: linux-rdma@vger.kernel.org, leonro@nvidia.com, jgg@nvidia.com, zyjzyj2000@gmail.com Cc: linux-kernel@vger.kernel.org, rpearsonhpe@gmail.com, yangx.jy@fujitsu.com, lizhijian@fujitsu.com, Daisuke Matsuda Subject: [PATCH for-next v4 3/8] RDMA/rxe: Make MR functions accessible from other rxe source code Date: Wed, 19 Apr 2023 14:51:55 +0900 Message-Id: <2f4b8ab05f4d8495e6a190fb54e087b25c34e029.1681882651.git.matsuda-daisuke@fujitsu.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: References: MIME-Version: 1.0 X-TM-AS-GCONF: 00 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Some functions in rxe_mr.c are going to be used in rxe_odp.c, which is to be created in the subsequent patch. List the declarations of the functions in rxe_loc.h. Signed-off-by: Daisuke Matsuda --- drivers/infiniband/sw/rxe/rxe_loc.h | 14 ++++++++++++++ drivers/infiniband/sw/rxe/rxe_mr.c | 18 ++++-------------- 2 files changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_loc.h b/drivers/infiniband/sw/rxe/rxe_loc.h index bf28ac13c3f5..3476726425d9 100644 --- a/drivers/infiniband/sw/rxe/rxe_loc.h +++ b/drivers/infiniband/sw/rxe/rxe_loc.h @@ -60,7 +60,9 @@ int rxe_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); /* rxe_mr.c */ u8 rxe_get_next_key(u32 last_key); +void rxe_mr_init(int access, struct rxe_mr *mr); void rxe_mr_init_dma(int access, struct rxe_mr *mr); +int rxe_mr_fill_pages_from_sgt(struct rxe_mr *mr, struct sg_table *sgt); int rxe_mr_init_user(struct rxe_dev *rxe, u64 start, u64 length, u64 iova, int access, struct rxe_mr *mr); int rxe_mr_init_fast(int max_pages, struct rxe_mr *mr); @@ -71,6 +73,8 @@ int copy_data(struct rxe_pd *pd, int access, struct rxe_dma_info *dma, void *addr, int length, enum rxe_mr_copy_dir dir); int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset); +int rxe_mr_copy_xarray(struct rxe_mr *mr, u64 iova, void *addr, + unsigned int length, enum rxe_mr_copy_dir dir); int rxe_mr_do_atomic_op(struct rxe_mr *mr, u64 iova, int opcode, u64 compare, u64 swap_add, u64 *orig_val); int rxe_mr_do_atomic_write(struct rxe_mr *mr, u64 iova, u64 value); @@ -82,6 +86,16 @@ int rxe_invalidate_mr(struct rxe_qp *qp, u32 key); int rxe_reg_fast_mr(struct rxe_qp *qp, struct rxe_send_wqe *wqe); void rxe_mr_cleanup(struct rxe_pool_elem *elem); +static inline unsigned long rxe_mr_iova_to_index(struct rxe_mr *mr, u64 iova) +{ + return (iova >> mr->page_shift) - (mr->ibmr.iova >> mr->page_shift); +} + +static inline unsigned long rxe_mr_iova_to_page_offset(struct rxe_mr *mr, u64 iova) +{ + return iova & (mr_page_size(mr) - 1); +} + /* rxe_mw.c */ int rxe_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata); int rxe_dealloc_mw(struct ib_mw *ibmw); diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c index 0e538fafcc20..ffbac6f5e828 100644 --- a/drivers/infiniband/sw/rxe/rxe_mr.c +++ b/drivers/infiniband/sw/rxe/rxe_mr.c @@ -49,7 +49,7 @@ int mr_check_range(struct rxe_mr *mr, u64 iova, size_t length) | IB_ACCESS_REMOTE_WRITE \ | IB_ACCESS_REMOTE_ATOMIC) -static void rxe_mr_init(int access, struct rxe_mr *mr) +void rxe_mr_init(int access, struct rxe_mr *mr) { u32 lkey = mr->elem.index << 8 | rxe_get_next_key(-1); u32 rkey = (access & IB_ACCESS_REMOTE) ? lkey : 0; @@ -77,16 +77,6 @@ void rxe_mr_init_dma(int access, struct rxe_mr *mr) mr->ibmr.type = IB_MR_TYPE_DMA; } -static unsigned long rxe_mr_iova_to_index(struct rxe_mr *mr, u64 iova) -{ - return (iova >> mr->page_shift) - (mr->ibmr.iova >> mr->page_shift); -} - -static unsigned long rxe_mr_iova_to_page_offset(struct rxe_mr *mr, u64 iova) -{ - return iova & (mr_page_size(mr) - 1); -} - static bool is_pmem_page(struct page *pg) { unsigned long paddr = page_to_phys(pg); @@ -96,7 +86,7 @@ static bool is_pmem_page(struct page *pg) IORES_DESC_PERSISTENT_MEMORY); } -static int rxe_mr_fill_pages_from_sgt(struct rxe_mr *mr, struct sg_table *sgt) +int rxe_mr_fill_pages_from_sgt(struct rxe_mr *mr, struct sg_table *sgt) { XA_STATE(xas, &mr->page_list, 0); struct sg_page_iter sg_iter; @@ -247,8 +237,8 @@ int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sgl, return ib_sg_to_pages(ibmr, sgl, sg_nents, sg_offset, rxe_set_page); } -static int rxe_mr_copy_xarray(struct rxe_mr *mr, u64 iova, void *addr, - unsigned int length, enum rxe_mr_copy_dir dir) +int rxe_mr_copy_xarray(struct rxe_mr *mr, u64 iova, void *addr, + unsigned int length, enum rxe_mr_copy_dir dir) { unsigned int page_offset = rxe_mr_iova_to_page_offset(mr, iova); unsigned long index = rxe_mr_iova_to_index(mr, iova);