From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933471AbcBCX3c (ORCPT ); Wed, 3 Feb 2016 18:29:32 -0500 Received: from e33.co.us.ibm.com ([32.97.110.151]:40953 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933378AbcBCX3T (ORCPT ); Wed, 3 Feb 2016 18:29:19 -0500 X-IBM-Helo: d03dlp02.boulder.ibm.com X-IBM-MailFrom: tyreld@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org;linux-scsi@vger.kernel.org From: Tyrel Datwyler To: JBottomley@odin.com Cc: martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, nfont@linux.vnet.ibm.com, brking@linux.vnet.ibm.com, hare@suse.de, Tyrel Datwyler Subject: [PATCH 5/6] ibmvscsi: Remove unsupported host config MAD and sysfs interface Date: Wed, 3 Feb 2016 17:28:33 -0600 Message-Id: <1454542114-1797-6-git-send-email-tyreld@linux.vnet.ibm.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1454542114-1797-1-git-send-email-tyreld@linux.vnet.ibm.com> References: <1454542114-1797-1-git-send-email-tyreld@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16020323-0009-0000-0000-0000120A4C32 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A VIOSRP_HOST_CONFIG_TYPE management datagram (MAD) has existed in the code for some time. From what information I've gathered from Brian King this was likely implemented on the host side in a SLES 9 based VIOS, which is no longer supported anywhere. Further, it is not defined in PAPR or supported by any AIX based VIOS. Treating as bit rot and removing the sysfs interface and associated host config code accordingly. Signed-off-by: Tyrel Datwyler --- drivers/scsi/ibmvscsi/ibmvscsi.c | 78 ---------------------------------------- drivers/scsi/ibmvscsi/viosrp.h | 7 ---- 2 files changed, 85 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 47cfe33..a2b8db1 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1853,62 +1853,6 @@ static void ibmvscsi_handle_crq(struct viosrp_crq *crq, } /** - * ibmvscsi_get_host_config: Send the command to the server to get host - * configuration data. The data is opaque to us. - */ -static int ibmvscsi_do_host_config(struct ibmvscsi_host_data *hostdata, - unsigned char *buffer, int length) -{ - struct viosrp_host_config *host_config; - struct srp_event_struct *evt_struct; - unsigned long flags; - dma_addr_t addr; - int rc; - - evt_struct = get_event_struct(&hostdata->pool); - if (!evt_struct) { - dev_err(hostdata->dev, "couldn't allocate event for HOST_CONFIG!\n"); - return -1; - } - - init_event_struct(evt_struct, - sync_completion, - VIOSRP_MAD_FORMAT, - info_timeout); - - host_config = &evt_struct->iu.mad.host_config; - - /* The transport length field is only 16-bit */ - length = min(0xffff, length); - - /* Set up a lun reset SRP command */ - memset(host_config, 0x00, sizeof(*host_config)); - host_config->common.type = cpu_to_be32(VIOSRP_HOST_CONFIG_TYPE); - host_config->common.length = cpu_to_be16(length); - addr = dma_map_single(hostdata->dev, buffer, length, DMA_BIDIRECTIONAL); - - if (dma_mapping_error(hostdata->dev, addr)) { - if (!firmware_has_feature(FW_FEATURE_CMO)) - dev_err(hostdata->dev, - "dma_mapping error getting host config\n"); - free_event_struct(&hostdata->pool, evt_struct); - return -1; - } - - host_config->buffer = cpu_to_be64(addr); - - init_completion(&evt_struct->comp); - spin_lock_irqsave(hostdata->host->host_lock, flags); - rc = ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2); - spin_unlock_irqrestore(hostdata->host->host_lock, flags); - if (rc == 0) - wait_for_completion(&evt_struct->comp); - dma_unmap_single(hostdata->dev, addr, length, DMA_BIDIRECTIONAL); - - return rc; -} - -/** * ibmvscsi_slave_configure: Set the "allow_restart" flag for each disk. * @sdev: struct scsi_device device to configure * @@ -2090,27 +2034,6 @@ static struct device_attribute ibmvscsi_host_os_type = { .show = show_host_os_type, }; -static ssize_t show_host_config(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct Scsi_Host *shost = class_to_shost(dev); - struct ibmvscsi_host_data *hostdata = shost_priv(shost); - - /* returns null-terminated host config data */ - if (ibmvscsi_do_host_config(hostdata, buf, PAGE_SIZE) == 0) - return strlen(buf); - else - return 0; -} - -static struct device_attribute ibmvscsi_host_config = { - .attr = { - .name = "config", - .mode = S_IRUGO, - }, - .show = show_host_config, -}; - static struct device_attribute *ibmvscsi_attrs[] = { &ibmvscsi_host_vhost_loc, &ibmvscsi_host_vhost_name, @@ -2119,7 +2042,6 @@ static struct device_attribute *ibmvscsi_attrs[] = { &ibmvscsi_host_partition_number, &ibmvscsi_host_mad_version, &ibmvscsi_host_os_type, - &ibmvscsi_host_config, NULL }; diff --git a/drivers/scsi/ibmvscsi/viosrp.h b/drivers/scsi/ibmvscsi/viosrp.h index da9bb29..04bae63 100644 --- a/drivers/scsi/ibmvscsi/viosrp.h +++ b/drivers/scsi/ibmvscsi/viosrp.h @@ -96,7 +96,6 @@ enum viosrp_mad_types { VIOSRP_EMPTY_IU_TYPE = 0x01, VIOSRP_ERROR_LOG_TYPE = 0x02, VIOSRP_ADAPTER_INFO_TYPE = 0x03, - VIOSRP_HOST_CONFIG_TYPE = 0x04, VIOSRP_CAPABILITIES_TYPE = 0x05, VIOSRP_ENABLE_FAST_FAIL = 0x08, }; @@ -162,11 +161,6 @@ struct viosrp_adapter_info { __be64 buffer; }; -struct viosrp_host_config { - struct mad_common common; - __be64 buffer; -}; - struct viosrp_fast_fail { struct mad_common common; }; @@ -204,7 +198,6 @@ union mad_iu { struct viosrp_empty_iu empty_iu; struct viosrp_error_log error_log; struct viosrp_adapter_info adapter_info; - struct viosrp_host_config host_config; struct viosrp_fast_fail fast_fail; struct viosrp_capabilities capabilities; }; -- 2.5.0