From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Wise Subject: [PATCH V3 3/4] RDMA/iser: limit sg tablesize to device fastreg max depth Date: Wed, 01 Jul 2015 11:30:53 -0500 Message-ID: <20150701163052.6501.27775.stgit@build.ogc.int> References: <20150701162936.6501.45512.stgit@build.ogc.int> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150701162936.6501.45512.stgit@build.ogc.int> Sender: target-devel-owner@vger.kernel.org To: dledford@redhat.com Cc: roid@mellanox.com, linux-rdma@vger.kernel.org, sagig@mellanox.com, infinipath@intel.com, target-devel@vger.kernel.org, eli@mellanox.com, ogerlitz@mellanox.com List-Id: linux-rdma@vger.kernel.org Signed-off-by: Steve Wise --- drivers/infiniband/ulp/iser/iscsi_iser.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 6a594aa..ec692f7 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -640,6 +640,13 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, SHOST_DIX_GUARD_CRC); } + /* + * Limit the sg_tablesize based on the device max fastreg page + * list length. + */ + shost->sg_tablesize = min_t(u32, shost->sg_tablesize, + ib_conn->device->dev_attr.max_fast_reg_page_list_len); + if (iscsi_host_add(shost, ib_conn->device->ib_device->dma_device)) { mutex_unlock(&iser_conn->state_mutex);