Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758607Ab0FJDyg (ORCPT ); Wed, 9 Jun 2010 23:54:36 -0400 Received: from na3sys009aog102.obsmtp.com ([74.125.149.69]:39794 "EHLO na3sys009aog102.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755525Ab0FJDyb convert rfc822-to-8bit (ORCPT ); Wed, 9 Jun 2010 23:54:31 -0400 From: "Yang, Bo" To: "Yang, Bo" , "'James.Bottomley@HansenPartnership.com'" , "'James.Bottomley@suse.de'" CC: "'linux-scsi@vger.kernel.org'" , "'akpm@osdl.org'" , "'linux-kernel@vger.kernel.org'" Date: Wed, 9 Jun 2010 21:54:04 -0600 Subject: [PATCH 5/12] scsi: megaraid_sas - Online Controller Reset (OCR): Add and initialize the OCR relaed variable Thread-Topic: [PATCH 5/12] scsi: megaraid_sas - Online Controller Reset (OCR): Add and initialize the OCR relaed variable Thread-Index: AcsIUJHqwNyIazodTtqyFBQNtP28RQ== Message-ID: <4B6A08C587958942AA3002690DD4F8C3D0804554@cosmail02.lsi.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-cr-hashedpuzzle: AjC1 A4PB BCwc GEFk IWT5 Mu6V Q+f7 YJbX ZjsM dvay fn5u k3o+ rNsA tqNu unNZ x51E;5;YQBrAHAAbQBAAG8AcwBkAGwALgBvAHIAZwA7AGoAYQBtAGUAcwAuAGIAbwB0AHQAbwBtAGwAZQB5AEAAaABhAG4AcwBlAG4AcABhAHIAdABuAGUAcgBzAGgAaQBwAC4AYwBvAG0AOwBqAGEAbQBlAHMALgBiAG8AdAB0AG8AbQBsAGUAeQBAAHMAdQBzAGUALgBkAGUAOwBsAGkAbgB1AHgALQBrAGUAcgBuAGUAbABAAHYAZwBlAHIALgBrAGUAcgBuAGUAbAAuAG8AcgBnADsAbABpAG4AdQB4AC0AcwBjAHMAaQBAAHYAZwBlAHIALgBrAGUAcgBuAGUAbAAuAG8AcgBnAA==;Sosha1_v1;7;{8D7DF27E-3BCD-4475-B52A-50922F282D40};YgBvAC4AeQBhAG4AZwBAAGwAcwBpAC4AYwBvAG0A;Thu, 10 Jun 2010 03:54:04 GMT;WwBQAEEAVABDAEgAIAA1AC8AMQAyAF0AIABzAGMAcwBpADoAIABtAGUAZwBhAHIAYQBpAGQAXwBzAGEAcwAgAC0AIABPAG4AbABpAG4AZQAgAEMAbwBuAHQAcgBvAGwAbABlAHIAIABSAGUAcwBlAHQAIAAoAE8AQwBSACkAOgAgAEEAZABkACAAYQBuAGQAIABpAG4AaQB0AGkAYQBsAGkAegBlACAAdABoAGUAIABPAEMAUgAgAHIAZQBsAGEAZQBkACAAdgBhAHIAaQBhAGIAbABlAA== x-cr-puzzleid: {8D7DF27E-3BCD-4475-B52A-50922F282D40} 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: 8496 Lines: 287 To support online controller reset, driver need to define some instance based variable and initialize them. Signed-off-by Bo Yang --- drivers/scsi/megaraid/megaraid_sas.c | 80 ++++++++++++++++++++++++++--------- drivers/scsi/megaraid/megaraid_sas.h | 13 ++++- 2 files changed, 70 insertions(+), 23 deletions(-) diff -rupN old/drivers/scsi/megaraid/megaraid_sas.c new/drivers/scsi/megaraid/megaraid_sas.c --- old/drivers/scsi/megaraid/megaraid_sas.c 2010-06-08 15:39:25.000000000 -0400 +++ new/drivers/scsi/megaraid/megaraid_sas.c 2010-06-08 16:07:25.000000000 -0400 @@ -1856,7 +1856,8 @@ megasas_service_aen(struct megasas_insta instance->aen_cmd = NULL; megasas_return_cmd(instance, cmd); - if (instance->unload == 0) { + if ((instance->unload == 0) && + ((instance->issuepend_done == 1))) { struct megasas_aen_event *ev; ev = kzalloc(sizeof(*ev), GFP_ATOMIC); if (!ev) { @@ -1951,6 +1952,9 @@ megasas_complete_cmd(struct megasas_inst struct megasas_header *hdr = &cmd->frame->hdr; unsigned long flags; + /* flag for the retry reset */ + cmd->retry_for_fw_reset = 0; + if (cmd->scmd) cmd->scmd->SCp.ptr = NULL; @@ -2076,27 +2080,29 @@ megasas_complete_cmd(struct megasas_inst * @alt_status: Alternate status to be returned to * SCSI mid-layer instead of the status * returned by the FW + * Note: this must be called with hba lock held */ static int -megasas_deplete_reply_queue(struct megasas_instance *instance, u8 alt_status) +megasas_deplete_reply_queue(struct megasas_instance *instance, + u8 alt_status) { - /* - * Check if it is our interrupt - * Clear the interrupt - */ - if(instance->instancet->clear_intr(instance->reg_set)) + u32 mfiStatus; + u32 fw_state; + + if ((mfiStatus = instance->instancet->check_reset(instance, + instance->reg_set)) == 1) { + return IRQ_HANDLED; + } + + if ((mfiStatus = instance->instancet->clear_intr( + instance->reg_set) + ) == 0) { return IRQ_NONE; + } - if (instance->hw_crit_error) - goto out_done; - /* - * Schedule the tasklet for cmd completion - */ tasklet_schedule(&instance->isr_tasklet); -out_done: return IRQ_HANDLED; } - /** * megasas_isr - isr entry point */ @@ -2260,7 +2266,7 @@ megasas_transition_to_ready(struct megas "in %d secs\n", fw_state, max_wait); return -ENODEV; } - }; + } printk(KERN_INFO "megasas: FW now in Ready state\n"); return 0; @@ -2342,6 +2348,7 @@ static int megasas_create_frame_pool(str */ sgl_sz = sge_sz * instance->max_num_sge; frame_count = (sgl_sz + MEGAMFI_FRAME_SIZE - 1) / MEGAMFI_FRAME_SIZE; + frame_count = 15; /* * We need one extra frame for the MFI command @@ -2489,6 +2496,7 @@ static int megasas_alloc_cmds(struct meg cmd = instance->cmd_list[i]; memset(cmd, 0, sizeof(struct megasas_cmd)); cmd->index = i; + cmd->scmd = NULL; cmd->instance = instance; list_add_tail(&cmd->list, &instance->cmd_pool); @@ -2656,7 +2664,7 @@ megasas_get_ld_list(struct megasas_insta /* the following function will get the instance PD LIST */ - if ((ret == 0) && (ci->ldCount < MAX_LOGICAL_DRIVES)) { + if ((ret == 0) && (ci->ldCount <= MAX_LOGICAL_DRIVES)) { memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); for (ld_index = 0; ld_index < ci->ldCount; ld_index++) { @@ -2970,6 +2978,21 @@ static int megasas_init_mfi(struct megas if (megasas_issue_init_mfi(instance)) goto fail_fw_init; + instance->fw_support_ieee = 0; + instance->fw_support_ieee = + (instance->instancet->read_fw_status_reg(reg_set) & + 0x04000000); + + printk(KERN_NOTICE "megasas_init_mfi: fw_support_ieee=%d", + instance->fw_support_ieee); + + if (instance->fw_support_ieee) + instance->flag_ieee = 1; + + /** for passthrough + * the following function will get the PD LIST. + */ + memset(instance->pd_list, 0 , (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); megasas_get_pd_list(instance); @@ -2996,6 +3019,8 @@ static int megasas_init_mfi(struct megas max_sectors_2 = ctrl_info->max_request_size; tmp_sectors = min_t(u32, max_sectors_1 , max_sectors_2); + instance->disableOnlineCtrlReset = + ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset; } instance->max_sectors_per_req = instance->max_num_sge * @@ -3217,6 +3242,7 @@ megasas_register_aen(struct megasas_inst dcmd->flags = MFI_FRAME_DIR_READ; dcmd->timeout = 0; dcmd->pad_0 = 0; + instance->last_seq_num = seq_num; dcmd->data_xfer_len = sizeof(struct megasas_evt_detail); dcmd->opcode = MR_DCMD_CTRL_EVENT_WAIT; dcmd->mbox.w[0] = seq_num; @@ -3385,6 +3411,7 @@ megasas_probe_one(struct pci_dev *pdev, instance = (struct megasas_instance *)host->hostdata; memset(instance, 0, sizeof(*instance)); + atomic_set( &instance->fw_reset_no_pci_access, 0 ); instance->producer = pci_alloc_consistent(pdev, sizeof(u32), &instance->producer_h); @@ -3402,6 +3429,9 @@ megasas_probe_one(struct pci_dev *pdev, megasas_poll_wait_aen = 0; instance->flag_ieee = 0; instance->ev = NULL; + instance->issuepend_done = 1; + instance->adprecovery = MEGASAS_HBA_OPERATIONAL; + megasas_poll_wait_aen = 0; instance->evt_detail = pci_alloc_consistent(pdev, sizeof(struct @@ -3451,6 +3481,9 @@ megasas_probe_one(struct pci_dev *pdev, instance->flag = 0; instance->unload = 1; instance->last_time = 0; + instance->disableOnlineCtrlReset = 1; + + INIT_WORK(&instance->work_init, process_fw_state_change_wq); /* * Initialize MFI Firmware @@ -3542,6 +3575,9 @@ static void megasas_flush_cache(struct m struct megasas_cmd *cmd; struct megasas_dcmd_frame *dcmd; + if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) + return; + cmd = megasas_get_cmd(instance); if (!cmd) @@ -3579,6 +3615,9 @@ static void megasas_shutdown_controller( struct megasas_cmd *cmd; struct megasas_dcmd_frame *dcmd; + if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) + return; + cmd = megasas_get_cmd(instance); if (!cmd) @@ -4086,8 +4125,8 @@ static int megasas_mgmt_ioctl_fw(struct goto out_kfree_ioc; } - if (instance->hw_crit_error == 1) { - printk(KERN_DEBUG "Controller in Crit ERROR\n"); + if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { + printk(KERN_ERR "Controller in crit error\n"); error = -ENODEV; goto out_kfree_ioc; } @@ -4104,6 +4143,7 @@ static int megasas_mgmt_ioctl_fw(struct error = -ERESTARTSYS; goto out_kfree_ioc; } + error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); up(&instance->ioctl_sem); @@ -4132,8 +4172,8 @@ static int megasas_mgmt_ioctl_aen(struct if (!instance) return -ENODEV; - if (instance->hw_crit_error == 1) { - error = -ENODEV; + if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { + return -ENODEV; } if (instance->unload == 1) { diff -rupN old/drivers/scsi/megaraid/megaraid_sas.h new/drivers/scsi/megaraid/megaraid_sas.h --- old/drivers/scsi/megaraid/megaraid_sas.h 2010-06-08 15:39:25.000000000 -0400 +++ new/drivers/scsi/megaraid/megaraid_sas.h 2010-06-08 15:59:09.000000000 -0400 @@ -60,6 +60,7 @@ #define MFI_STATE_READY 0xB0000000 #define MFI_STATE_OPERATIONAL 0xC0000000 #define MFI_STATE_FAULT 0xF0000000 +#define MFI_RESET_REQUIRED 0x00000001 #define MEGAMFI_FRAME_SIZE 64 @@ -409,7 +410,6 @@ struct megasas_ctrl_prop { u8 restore_hotspare_on_insertion; u8 expose_encl_devices; u8 reserved[38]; - } __packed; /* @@ -1265,19 +1265,24 @@ struct megasas_instance { struct pci_dev *pdev; u32 unique_id; + u32 fw_support_ieee; atomic_t fw_outstanding; - u32 hw_crit_error; + atomic_t fw_reset_no_pci_access; struct megasas_instance_template *instancet; struct tasklet_struct isr_tasklet; + struct work_struct work_init; u8 flag; u8 unload; u8 flag_ieee; u8 issuepend_done; + u8 disableOnlineCtrlReset; u8 adprecovery; unsigned long last_time; + u32 mfiStatus; + u32 last_seq_num; struct timer_list io_completion_timer; struct list_head internal_reset_pending_q; @@ -1325,7 +1330,9 @@ struct megasas_cmd { u32 index; u8 sync_cmd; u8 cmd_status; - u16 abort_aen; + u8 abort_aen; + u8 retry_for_fw_reset; + struct list_head list; struct scsi_cmnd *scmd; -- 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/