Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754742AbZIUClB (ORCPT ); Sun, 20 Sep 2009 22:41:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754432AbZIUClA (ORCPT ); Sun, 20 Sep 2009 22:41:00 -0400 Received: from na3sys009aog105.obsmtp.com ([74.125.149.75]:44715 "EHLO na3sys009aog105.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754104AbZIUCk7 convert rfc822-to-8bit (ORCPT ); Sun, 20 Sep 2009 22:40:59 -0400 From: "Yang, Bo" To: "Yang, Bo" , "linux-scsi@vger.kernel.org" , "akpm@osdl.org" , "linux-kernel@vger.kernel.org" , "James.Bottomley@HansenPartnership.com" , "James.Bottomley@suse.de" Date: Sun, 20 Sep 2009 20:40:49 -0600 Subject: [PATCH 6/12] scsi: megaraid_sas - report system pds to OS (part II) Thread-Topic: [PATCH 6/12] scsi: megaraid_sas - report system pds to OS (part II) Thread-Index: Aco284muq21jjlUCRvWfDnAhnowdBQAABfzAAAAxetAAAF05EAAATiEQANttm3A= Message-ID: <4B6A08C587958942AA3002690DD4F8C35C512401@cosmail02.lsi.com> In-Reply-To: <4B6A08C587958942AA3002690DD4F8C35C51198F@cosmail02.lsi.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5195 Lines: 134 Add the system pds support part-II. When OS issue inquiry, it will check driver's internal pd_list. Signed-off-by Bo Yang --- drivers/scsi/megaraid/megaraid_sas.c | 91 +++++++++++++++++++++++++---------- 1 file changed, 65 insertions(+), 26 deletions(-) diff -rupN linux-2.6.28_orig/drivers/scsi/megaraid/megaraid_sas.c linux-2.6.28_new/drivers/scsi/megaraid/megaraid_sas.c --- linux-2.6.28_orig/drivers/scsi/megaraid/megaraid_sas.c 2009-09-14 05:49:20.000000000 -0400 +++ linux-2.6.28_new/drivers/scsi/megaraid/megaraid_sas.c 2009-09-14 05:56:01.000000000 -0400 @@ -1115,24 +1115,76 @@ megasas_queue_command(struct scsi_cmnd * return 0; } +static struct megasas_instance *megasas_lookup_instance(u16 host_no) +{ + int i; + + for (i = 0; i < megasas_mgmt_info.max_index; i++) { + + if ((megasas_mgmt_info.instance[i]) && + (megasas_mgmt_info.instance[i]->host->host_no == host_no)) + return megasas_mgmt_info.instance[i]; + } + + return NULL; +} + static int megasas_slave_configure(struct scsi_device *sdev) { + u16 pd_index = 0; + struct megasas_instance *instance ; + + instance = megasas_lookup_instance(sdev->host->host_no); + /* - * Don't export physical disk devices to the disk driver. - * - * FIXME: Currently we don't export them to the midlayer at all. - * That will be fixed once LSI engineers have audited the - * firmware for possible issues. - */ - if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && sdev->type == TYPE_DISK) + * Don't export physical disk devices to the disk driver. + * + * FIXME: Currently we don't export them to the midlayer at all. + * That will be fixed once LSI engineers have audited the + * firmware for possible issues. + */ + if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && + sdev->type == TYPE_DISK) { + pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + + sdev->id; + if (instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) { + blk_queue_rq_timeout(sdev->request_queue, + MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + return 0; + } return -ENXIO; + } /* - * The RAID firmware may require extended timeouts. - */ - if (sdev->channel >= MEGASAS_MAX_PD_CHANNELS) - blk_queue_rq_timeout(sdev->request_queue, - MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + * The RAID firmware may require extended timeouts. + */ + blk_queue_rq_timeout(sdev->request_queue, + MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + return 0; +} + +static int megasas_slave_alloc(struct scsi_device *sdev) +{ + u16 pd_index = 0; + struct megasas_instance *instance ; + instance = megasas_lookup_instance(sdev->host->host_no); + if ((sdev->channel < MEGASAS_MAX_PD_CHANNELS) && + (sdev->type == TYPE_DISK)) { + /* + * Open the OS scan to the SYSTEM PD + */ + pd_index = + (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + + sdev->id; + if ((instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) && + (instance->pd_list[pd_index].driveType == + TYPE_DISK)) { + return 0; + } + return -ENXIO; + } return 0; } @@ -1423,6 +1475,7 @@ static struct scsi_host_template megasas .name = "LSI SAS based MegaRAID driver", .proc_name = "megaraid_sas", .slave_configure = megasas_slave_configure, + .slave_alloc = megasas_slave_alloc, .queuecommand = megasas_queue_command, .eh_device_reset_handler = megasas_reset_device, .eh_bus_reset_handler = megasas_reset_bus_host, @@ -3455,20 +3508,6 @@ megasas_mgmt_fw_ioctl(struct megasas_ins return error; } -static struct megasas_instance *megasas_lookup_instance(u16 host_no) -{ - int i; - - for (i = 0; i < megasas_mgmt_info.max_index; i++) { - - if ((megasas_mgmt_info.instance[i]) && - (megasas_mgmt_info.instance[i]->host->host_no == host_no)) - return megasas_mgmt_info.instance[i]; - } - - return NULL; -} - static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) { struct megasas_iocpacket __user *user_ioc = -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/