From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: [PATCH] IB/core: Improve ib_map_mr_sg() documentation Date: Mon, 26 Sep 2016 09:09:42 -0700 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Doug Ledford Cc: Sagi Grimberg , Christoph Hellwig , linux-rdma List-Id: linux-rdma@vger.kernel.org Document that ib_map_mr_sg() is able to map physically discontiguous sg-lists as a single MR. Change IB_MR_TYPE_SG_GAPS_REG into IB_MR_TYPE_SG_GAPS. Signed-off-by: Bart Van Assche Cc: Sagi Grimberg Cc: Christoph Hellwig --- drivers/infiniband/core/verbs.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index f2b776efab3a..ff75be35cf28 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1812,13 +1812,13 @@ EXPORT_SYMBOL(ib_set_vf_guid); * * Constraints: * - The first sg element is allowed to have an offset. - * - Each sg element must be aligned to page_size (or physically - * contiguous to the previous element). In case an sg element has a - * non contiguous offset, the mapping prefix will not include it. + * - Each sg element must either be aligned to page_size or virtually + * contiguous to the previous element. In case an sg element has a + * non-contiguous offset, the mapping prefix will not include it. * - The last sg element is allowed to have length less than page_size. * - If sg_nents total byte length exceeds the mr max_num_sge * page_size * then only max_num_sg entries will be mapped. - * - If the MR was allocated with type IB_MR_TYPE_SG_GAPS_REG, non of these + * - If the MR was allocated with type IB_MR_TYPE_SG_GAPS, none of these * constraints holds and the page_size argument is ignored. * * Returns the number of sg elements that were mapped to the memory region. -- 2.10.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html