From patchwork Tue Apr 25 18:20:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Logan Gunthorpe X-Patchwork-Id: 9699129 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5F542603F4 for ; Tue, 25 Apr 2017 18:27:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5041D283F2 for ; Tue, 25 Apr 2017 18:27:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 444E12846C; Tue, 25 Apr 2017 18:27:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D64E328459 for ; Tue, 25 Apr 2017 18:27:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1952657AbdDYSXt (ORCPT ); Tue, 25 Apr 2017 14:23:49 -0400 Received: from ale.deltatee.com ([207.54.116.67]:49913 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1952444AbdDYSVb (ORCPT ); Tue, 25 Apr 2017 14:21:31 -0400 Received: from cgy1-donard.priv.deltatee.com ([172.16.1.31]) by ale.deltatee.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1d355S-0004KU-Ec; Tue, 25 Apr 2017 12:21:24 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.84_2) (envelope-from ) id 1d355N-0005si-8z; Tue, 25 Apr 2017 12:21:13 -0600 From: Logan Gunthorpe To: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-nvdimm@lists.01.org, linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, megaraidlinux.pdl@broadcom.com, sparmaintainer@unisys.com, devel@driverdev.osuosl.org, target-devel@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, dm-devel@redhat.com Cc: Christoph Hellwig , "Martin K. Petersen" , "James E.J. Bottomley" , Jens Axboe , Greg Kroah-Hartman , Dan Williams , Ross Zwisler , Matthew Wilcox , Sumit Semwal , Stephen Bates , Logan Gunthorpe , Achim Leubner , John Garry Date: Tue, 25 Apr 2017 12:20:59 -0600 Message-Id: <1493144468-22493-13-git-send-email-logang@deltatee.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1493144468-22493-1-git-send-email-logang@deltatee.com> References: <1493144468-22493-1-git-send-email-logang@deltatee.com> X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-nvdimm@lists.01.org, open-iscsi@googlegroups.com, megaraidlinux.pdl@broadcom.com, sparmaintainer@unisys.com, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-media@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, dm-devel@redhat.com, hch@lst.de, martin.petersen@oracle.com, jejb@linux.vnet.ibm.com, axboe@kernel.dk, gregkh@linuxfoundation.org, dan.j.williams@intel.com, ross.zwisler@linux.intel.com, mawilcox@microsoft.com, sumit.semwal@linaro.org, sbates@raithlin.com, logang@deltatee.com, achim_leubner@adaptec.com, john.garry@huawei.com X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH v2 12/21] scsi: hisi_sas, mvsas, gdth: Make use of the new sg_map helper function X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Very straightforward conversion of three scsi drivers. Signed-off-by: Logan Gunthorpe Cc: Achim Leubner Cc: John Garry --- drivers/scsi/gdth.c | 9 +++++++-- drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 14 +++++++++----- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 13 +++++++++---- drivers/scsi/mvsas/mv_sas.c | 10 +++++----- 4 files changed, 30 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index d020a13..c70248a2 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -2301,10 +2301,15 @@ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp, return; } local_irq_save(flags); - address = kmap_atomic(sg_page(sl)) + sl->offset; + address = sg_map(sl, 0, SG_KMAP_ATOMIC); + if (IS_ERR(address)) { + scp->result = DID_ERROR << 16; + return; + } + memcpy(address, buffer, cpnow); flush_dcache_page(sg_page(sl)); - kunmap_atomic(address); + sg_unmap(sl, address, 0, SG_KMAP_ATOMIC); local_irq_restore(flags); if (cpsum == cpcount) break; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c index fc1c1b2..b3953e3 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c @@ -1381,18 +1381,22 @@ static int slot_complete_v1_hw(struct hisi_hba *hisi_hba, void *to; struct scatterlist *sg_resp = &task->smp_task.smp_resp; - ts->stat = SAM_STAT_GOOD; - to = kmap_atomic(sg_page(sg_resp)); + to = sg_map(sg_resp, 0, SG_KMAP_ATOMIC); + if (IS_ERR(to)) { + dev_err(dev, "slot complete: error mapping memory"); + ts->stat = SAS_SG_ERR; + break; + } + ts->stat = SAM_STAT_GOOD; dma_unmap_sg(dev, &task->smp_task.smp_resp, 1, DMA_FROM_DEVICE); dma_unmap_sg(dev, &task->smp_task.smp_req, 1, DMA_TO_DEVICE); - memcpy(to + sg_resp->offset, - slot->status_buffer + + memcpy(to, slot->status_buffer + sizeof(struct hisi_sas_err_record), sg_dma_len(sg_resp)); - kunmap_atomic(to); + sg_unmap(sg_resp, to, 0, SG_KMAP_ATOMIC); break; } case SAS_PROTOCOL_SATA: diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index e241921..3e674a4 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -2307,18 +2307,23 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot) struct scatterlist *sg_resp = &task->smp_task.smp_resp; void *to; + to = sg_map(sg_resp, 0, SG_KMAP_ATOMIC); + if (IS_ERR(to)) { + dev_err(dev, "slot complete: error mapping memory"); + ts->stat = SAS_SG_ERR; + break; + } + ts->stat = SAM_STAT_GOOD; - to = kmap_atomic(sg_page(sg_resp)); dma_unmap_sg(dev, &task->smp_task.smp_resp, 1, DMA_FROM_DEVICE); dma_unmap_sg(dev, &task->smp_task.smp_req, 1, DMA_TO_DEVICE); - memcpy(to + sg_resp->offset, - slot->status_buffer + + memcpy(to, slot->status_buffer + sizeof(struct hisi_sas_err_record), sg_dma_len(sg_resp)); - kunmap_atomic(to); + sg_unmap(sg_resp, to, 0, SG_KMAP_ATOMIC); break; } case SAS_PROTOCOL_SATA: diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c index c7cc803..a72e0ce 100644 --- a/drivers/scsi/mvsas/mv_sas.c +++ b/drivers/scsi/mvsas/mv_sas.c @@ -1798,11 +1798,11 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags) case SAS_PROTOCOL_SMP: { struct scatterlist *sg_resp = &task->smp_task.smp_resp; tstat->stat = SAM_STAT_GOOD; - to = kmap_atomic(sg_page(sg_resp)); - memcpy(to + sg_resp->offset, - slot->response + sizeof(struct mvs_err_info), - sg_dma_len(sg_resp)); - kunmap_atomic(to); + to = sg_map(sg_resp, 0, SG_KMAP_ATOMIC); + memcpy(to, + slot->response + sizeof(struct mvs_err_info), + sg_dma_len(sg_resp)); + sg_unmap(sg_resp, to, 0, SG_KMAP_ATOMIC); break; }