From 41415862a23f422b80eccc92cf885935139e2415 Mon Sep 17 00:00:00 2001 From: Jamie Wellnitz Date: Tue, 28 Feb 2006 19:25:27 -0500 Subject: [SCSI] lpfc 8.1.2: Add ERROR and WARM_START modes for diagnostic purposes. Add ERROR and WARM_START modes for diagnostic purposes. Signed-off-by: Jamie Wellnitz Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc.h | 34 +++-- drivers/scsi/lpfc/lpfc_attr.c | 64 +++++++- drivers/scsi/lpfc/lpfc_crtn.h | 9 +- drivers/scsi/lpfc/lpfc_disc.h | 18 ++- drivers/scsi/lpfc/lpfc_hbadisc.c | 32 +++- drivers/scsi/lpfc/lpfc_hw.h | 4 +- drivers/scsi/lpfc/lpfc_init.c | 57 +++++-- drivers/scsi/lpfc/lpfc_mbox.c | 13 +- drivers/scsi/lpfc/lpfc_sli.c | 311 +++++++++++++++++++++++++-------------- 9 files changed, 390 insertions(+), 152 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 214ab436e03..c4cca9124f4 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -175,25 +175,27 @@ struct lpfc_hba { uint16_t pci_cfg_value; struct semaphore hba_can_block; - uint32_t hba_state; - -#define LPFC_INIT_START 1 /* Initial state after board reset */ -#define LPFC_INIT_MBX_CMDS 2 /* Initialize HBA with mbox commands */ -#define LPFC_LINK_DOWN 3 /* HBA initialized, link is down */ -#define LPFC_LINK_UP 4 /* Link is up - issue READ_LA */ -#define LPFC_LOCAL_CFG_LINK 5 /* local NPORT Id configured */ -#define LPFC_FLOGI 6 /* FLOGI sent to Fabric */ -#define LPFC_FABRIC_CFG_LINK 7 /* Fabric assigned NPORT Id + int32_t hba_state; + +#define LPFC_STATE_UNKNOWN 0 /* HBA state is unknown */ +#define LPFC_WARM_START 1 /* HBA state after selective reset */ +#define LPFC_INIT_START 2 /* Initial state after board reset */ +#define LPFC_INIT_MBX_CMDS 3 /* Initialize HBA with mbox commands */ +#define LPFC_LINK_DOWN 4 /* HBA initialized, link is down */ +#define LPFC_LINK_UP 5 /* Link is up - issue READ_LA */ +#define LPFC_LOCAL_CFG_LINK 6 /* local NPORT Id configured */ +#define LPFC_FLOGI 7 /* FLOGI sent to Fabric */ +#define LPFC_FABRIC_CFG_LINK 8 /* Fabric assigned NPORT Id configured */ -#define LPFC_NS_REG 8 /* Register with NameServer */ -#define LPFC_NS_QRY 9 /* Query NameServer for NPort ID list */ -#define LPFC_BUILD_DISC_LIST 10 /* Build ADISC and PLOGI lists for +#define LPFC_NS_REG 9 /* Register with NameServer */ +#define LPFC_NS_QRY 10 /* Query NameServer for NPort ID list */ +#define LPFC_BUILD_DISC_LIST 11 /* Build ADISC and PLOGI lists for * device authentication / discovery */ -#define LPFC_DISC_AUTH 11 /* Processing ADISC list */ -#define LPFC_CLEAR_LA 12 /* authentication cmplt - issue +#define LPFC_DISC_AUTH 12 /* Processing ADISC list */ +#define LPFC_CLEAR_LA 13 /* authentication cmplt - issue CLEAR_LA */ #define LPFC_HBA_READY 32 -#define LPFC_HBA_ERROR 0xff +#define LPFC_HBA_ERROR -1 uint8_t fc_linkspeed; /* Link speed after last READ_LA */ diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index c8fb43d6088..e7aca3c4b26 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -149,6 +149,8 @@ lpfc_state_show(struct class_device *cdev, char *buf) struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata; int len = 0; switch (phba->hba_state) { + case LPFC_STATE_UNKNOWN: + case LPFC_WARM_START: case LPFC_INIT_START: case LPFC_INIT_MBX_CMDS: case LPFC_LINK_DOWN: @@ -278,6 +280,58 @@ lpfc_board_online_store(struct class_device *cdev, const char *buf, return -EIO; } +static ssize_t +lpfc_board_mode_show(struct class_device *cdev, char *buf) +{ + struct Scsi_Host *host = class_to_shost(cdev); + struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata; + char * state; + + if (phba->hba_state == LPFC_HBA_ERROR) + state = "error"; + else if (phba->hba_state == LPFC_WARM_START) + state = "warm start"; + else if (phba->hba_state == LPFC_INIT_START) + state = "offline"; + else + state = "online"; + + return snprintf(buf, PAGE_SIZE, "%s\n", state); +} + +static ssize_t +lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count) +{ + struct Scsi_Host *host = class_to_shost(cdev); + struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata; + struct completion online_compl; + int status=0; + + init_completion(&online_compl); + + if(strncmp(buf, "online", sizeof("online") - 1) == 0) + lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_ONLINE); + else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) + lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_OFFLINE); + else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) + lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_WARM_START); + else if (strncmp(buf, "error", sizeof("error") - 1) == 0) + lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_KILL); + else + return -EINVAL; + + wait_for_completion(&online_compl); + + if (!status) + return strlen(buf); + else + return -EIO; +} + static ssize_t lpfc_poll_show(struct class_device *cdev, char *buf) { @@ -480,6 +534,8 @@ static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show, NULL); static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR, lpfc_board_online_show, lpfc_board_online_store); +static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, + lpfc_board_mode_show, lpfc_board_mode_store); static int lpfc_poll = 0; module_param(lpfc_poll, int, 0); @@ -674,6 +730,7 @@ struct class_device_attribute *lpfc_host_attrs[] = { &class_device_attr_nport_evt_cnt, &class_device_attr_management_version, &class_device_attr_board_online, + &class_device_attr_board_mode, &class_device_attr_lpfc_poll, &class_device_attr_lpfc_poll_tmo, NULL, @@ -883,8 +940,11 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count) case MBX_DUMP_MEMORY: case MBX_DOWN_LOAD: case MBX_UPDATE_CFG: + case MBX_KILL_BOARD: case MBX_LOAD_AREA: case MBX_LOAD_EXP_ROM: + case MBX_BEACON: + case MBX_DEL_LD_ENTRY: break; case MBX_READ_SPARM64: case MBX_READ_LA: @@ -1042,6 +1102,8 @@ lpfc_get_host_port_state(struct Scsi_Host *shost) fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; else { switch (phba->hba_state) { + case LPFC_STATE_UNKNOWN: + case LPFC_WARM_START: case LPFC_INIT_START: case LPFC_INIT_MBX_CMDS: case LPFC_LINK_DOWN: diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 0ae49811b91..cafddf2f1af 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * @@ -107,6 +107,7 @@ void lpfc_fdmi_tmo_handler(struct lpfc_hba *); int lpfc_config_port_prep(struct lpfc_hba *); int lpfc_config_port_post(struct lpfc_hba *); int lpfc_hba_down_prep(struct lpfc_hba *); +int lpfc_hba_down_post(struct lpfc_hba *); void lpfc_hba_init(struct lpfc_hba *, uint32_t *); int lpfc_post_buffer(struct lpfc_hba *, struct lpfc_sli_ring *, int, int); void lpfc_decode_firmware_rev(struct lpfc_hba *, char *, int); @@ -123,6 +124,7 @@ irqreturn_t lpfc_intr_handler(int, void *, struct pt_regs *); void lpfc_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_config_ring(struct lpfc_hba *, int, LPFC_MBOXQ_t *); void lpfc_config_port(struct lpfc_hba *, LPFC_MBOXQ_t *); +void lpfc_kill_board(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_mbox_put(struct lpfc_hba *, LPFC_MBOXQ_t *); LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *); @@ -135,6 +137,11 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba * hba); struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *); void lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocb); uint16_t lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocb); + +int lpfc_sli_brdready(struct lpfc_hba *, uint32_t); +int lpfc_sli_brdkill(struct lpfc_hba *); +int lpfc_sli_brdreset(struct lpfc_hba *); +int lpfc_sli_brdrestart(struct lpfc_hba *); int lpfc_sli_hba_setup(struct lpfc_hba *); int lpfc_sli_hba_down(struct lpfc_hba *); int lpfc_sli_issue_mbox(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h index ed6c81660e0..4dfcd4eda2f 100644 --- a/drivers/scsi/lpfc/lpfc_disc.h +++ b/drivers/scsi/lpfc/lpfc_disc.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * @@ -28,18 +28,24 @@ * This is used by Fibre Channel protocol to support FCP. */ +/* worker thread events */ +enum lpfc_work_type { + LPFC_EVT_NODEV_TMO, + LPFC_EVT_ONLINE, + LPFC_EVT_OFFLINE, + LPFC_EVT_WARM_START, + LPFC_EVT_KILL, + LPFC_EVT_ELS_RETRY, +}; + /* structure used to queue event to the discovery tasklet */ struct lpfc_work_evt { struct list_head evt_listp; void * evt_arg1; void * evt_arg2; - uint32_t evt; + enum lpfc_work_type evt; }; -#define LPFC_EVT_NODEV_TMO 0x1 -#define LPFC_EVT_ONLINE 0x2 -#define LPFC_EVT_OFFLINE 0x3 -#define LPFC_EVT_ELS_RETRY 0x4 struct lpfc_nodelist { struct list_head nlp_listp; diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 5c396171ebe..55454923029 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -120,11 +120,33 @@ lpfc_work_list_done(struct lpfc_hba * phba) free_evt = 0; break; case LPFC_EVT_ONLINE: - *(int *)(evtp->evt_arg1) = lpfc_online(phba); + if (phba->hba_state < LPFC_LINK_DOWN) + *(int *)(evtp->evt_arg1) = lpfc_online(phba); + else + *(int *)(evtp->evt_arg1) = 0; complete((struct completion *)(evtp->evt_arg2)); break; case LPFC_EVT_OFFLINE: - *(int *)(evtp->evt_arg1) = lpfc_offline(phba); + if (phba->hba_state >= LPFC_LINK_DOWN) + lpfc_offline(phba); + lpfc_sli_brdrestart(phba); + *(int *)(evtp->evt_arg1) = + lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY); + complete((struct completion *)(evtp->evt_arg2)); + break; + case LPFC_EVT_WARM_START: + if (phba->hba_state >= LPFC_LINK_DOWN) + lpfc_offline(phba); + lpfc_sli_brdreset(phba); + lpfc_hba_down_post(phba); + *(int *)(evtp->evt_arg1) = + lpfc_sli_brdready(phba, HS_MBRDY); + complete((struct completion *)(evtp->evt_arg2)); + break; + case LPFC_EVT_KILL: + if (phba->hba_state >= LPFC_LINK_DOWN) + lpfc_offline(phba); + *(int *)(evtp->evt_arg1) = lpfc_sli_brdkill(phba); complete((struct completion *)(evtp->evt_arg2)); break; } @@ -287,6 +309,10 @@ lpfc_linkdown(struct lpfc_hba * phba) LPFC_MBOXQ_t *mb; int rc, i; + if (phba->hba_state == LPFC_LINK_DOWN) { + return 0; + } + psli = &phba->sli; /* sysfs or selective reset may call this routine to clean up */ diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index e613dd07d2a..98d39cea795 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * @@ -1233,7 +1233,9 @@ typedef struct { /* FireFly BIU registers */ #define MBX_SET_MASK 0x20 #define MBX_SET_SLIM 0x21 #define MBX_UNREG_D_ID 0x23 +#define MBX_KILL_BOARD 0x24 #define MBX_CONFIG_FARP 0x25 +#define MBX_BEACON 0x2A #define MBX_LOAD_AREA 0x81 #define MBX_RUN_BIU_DIAG64 0x84 diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 5e92c451f96..391ca50293f 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -459,9 +459,45 @@ lpfc_hba_down_prep(struct lpfc_hba * phba) lpfc_els_flush_cmd(phba); lpfc_disc_flush_list(phba); + /* Disable SLI2 since we disabled interrupts */ + phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; return (0); } +/************************************************************************/ +/* */ +/* lpfc_hba_down_post */ +/* This routine will do uninitialization after the HBA is reset */ +/* when bringing down the SLI Layer. */ +/* This routine returns 0 on success. Any other return value */ +/* indicates an error. */ +/* */ +/************************************************************************/ +int +lpfc_hba_down_post(struct lpfc_hba * phba) +{ + struct lpfc_sli *psli = &phba->sli; + struct lpfc_sli_ring *pring; + struct lpfc_dmabuf *mp, *next_mp; + int i; + + /* Cleanup preposted buffers on the ELS ring */ + pring = &psli->ring[LPFC_ELS_RING]; + list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { + list_del(&mp->list); + pring->postbufq_cnt--; + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + } + + for (i = 0; i < psli->num_rings; i++) { + pring = &psli->ring[i]; + lpfc_sli_abort_iocb_ring(phba, pring); + } + + return 0; +} + /************************************************************************/ /* */ /* lpfc_handle_eratt */ @@ -476,20 +512,6 @@ lpfc_handle_eratt(struct lpfc_hba * phba) struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; - /* - * If a reset is sent to the HBA restore PCI configuration registers. - */ - if ( phba->hba_state == LPFC_INIT_START ) { - mdelay(1); - readl(phba->HCregaddr); /* flush */ - writel(0, phba->HCregaddr); - readl(phba->HCregaddr); /* flush */ - - /* Restore PCI cmd register */ - pci_write_config_word(phba->pcidev, - PCI_COMMAND, phba->pci_cfg_value); - } - if (phba->work_hs & HS_FFER6) { /* Re-establishing Link */ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, @@ -516,6 +538,7 @@ lpfc_handle_eratt(struct lpfc_hba * phba) * attempt to restart it. */ lpfc_offline(phba); + lpfc_sli_brdrestart(phba); if (lpfc_online(phba) == 0) { /* Initialize the HBA */ mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); return; @@ -532,7 +555,8 @@ lpfc_handle_eratt(struct lpfc_hba * phba) phba->work_status[0], phba->work_status[1]); lpfc_offline(phba); - + phba->hba_state = LPFC_HBA_ERROR; + lpfc_hba_down_post(phba); } } @@ -1695,6 +1719,7 @@ lpfc_pci_remove_one(struct pci_dev *pdev) * the HBA. */ lpfc_sli_hba_down(phba); + lpfc_sli_brdrestart(phba); /* Release the irq reservation */ free_irq(phba->pcidev->irq, phba); diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index 6c4b21a32c7..df88b78707d 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -636,6 +636,17 @@ lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) phba->brd_no); } +void +lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) +{ + MAILBOX_t *mb = &pmb->mb; + + memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); + mb->mbxCommand = MBX_KILL_BOARD; + mb->mbxOwner = OWN_HOST; + return; +} + void lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) { diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 1f876328b44..d6ffe26ae12 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2005 Emulex. All rights reserved. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -513,7 +513,9 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand) case MBX_SET_MASK: case MBX_SET_SLIM: case MBX_UNREG_D_ID: + case MBX_KILL_BOARD: case MBX_CONFIG_FARP: + case MBX_BEACON: case MBX_LOAD_AREA: case MBX_RUN_BIU_DIAG64: case MBX_CONFIG_PORT: @@ -1512,98 +1514,162 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) return errcnt; } -/****************************************************************************** -* lpfc_sli_send_reset -* -* Note: After returning from this function, the HBA cannot be accessed for -* 1 ms. Since we do not wish to delay in interrupt context, it is the -* responsibility of the caller to perform the mdelay(1) and flush via readl(). -******************************************************************************/ -static int -lpfc_sli_send_reset(struct lpfc_hba * phba, uint16_t skip_post) +int +lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask) { - MAILBOX_t *swpmb; - volatile uint32_t word0; - void __iomem *to_slim; - unsigned long flags = 0; + uint32_t status; + int i = 0; + int retval = 0; - spin_lock_irqsave(phba->host->host_lock, flags); + /* Read the HBA Host Status Register */ + status = readl(phba->HSregaddr); - /* A board reset must use REAL SLIM. */ - phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; + /* + * Check status register every 100ms for 5 retries, then every + * 500ms for 5, then every 2.5 sec for 5, then reset board and + * every 2.5 sec for 4. + * Break our of the loop if errors occurred during init. + */ + while (((status & mask) != mask) && + !(status & HS_FFERM) && + i++ < 20) { - word0 = 0; - swpmb = (MAILBOX_t *) & word0; - swpmb->mbxCommand = MBX_RESTART; - swpmb->mbxHc = 1; + if (i <= 5) + msleep(10); + else if (i <= 10) + msleep(500); + else + msleep(2500); - to_slim = phba->MBslimaddr; - writel(*(uint32_t *) swpmb, to_slim); - readl(to_slim); /* flush */ + if (i == 15) { + phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */ + lpfc_sli_brdrestart(phba); + } + /* Read the HBA Host Status Register */ + status = readl(phba->HSregaddr); + } - /* Only skip post after fc_ffinit is completed */ - if (skip_post) { - word0 = 1; /* This is really setting up word1 */ - } else { - word0 = 0; /* This is really setting up word1 */ + /* Check to see if any errors occurred during init */ + if ((status & HS_FFERM) || (i >= 20)) { + phba->hba_state = LPFC_HBA_ERROR; + retval = 1; } - to_slim = phba->MBslimaddr + sizeof (uint32_t); - writel(*(uint32_t *) swpmb, to_slim); - readl(to_slim); /* flush */ - /* Turn off parity checking and serr during the physical reset */ - pci_read_config_word(phba->pcidev, PCI_COMMAND, &phba->pci_cfg_value); - pci_write_config_word(phba->pcidev, PCI_COMMAND, - (phba->pci_cfg_value & - ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); + return retval; +} - writel(HC_INITFF, phba->HCregaddr); +int +lpfc_sli_brdkill(struct lpfc_hba * phba) +{ + struct lpfc_sli *psli; + LPFC_MBOXQ_t *pmb; + uint32_t status; + uint32_t ha_copy; + int retval; + int i = 0; - phba->hba_state = LPFC_INIT_START; - spin_unlock_irqrestore(phba->host->host_lock, flags); + psli = &phba->sli; - return 0; + /* Kill HBA */ + lpfc_printf_log(phba, + KERN_INFO, + LOG_SLI, + "%d:0329 Kill HBA Data: x%x x%x\n", + phba->brd_no, + phba->hba_state, + psli->sli_flag); + + if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, + GFP_ATOMIC)) == 0) { + return 1; + } + + /* Disable the error attention */ + spin_lock_irq(phba->host->host_lock); + status = readl(phba->HCregaddr); + status &= ~HC_ERINT_ENA; + writel(status, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + spin_unlock_irq(phba->host->host_lock); + + lpfc_kill_board(phba, pmb); + pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + + if (retval != MBX_SUCCESS) { + if (retval != MBX_BUSY) + mempool_free(pmb, phba->mbox_mem_pool); + return 1; + } + + mempool_free(pmb, phba->mbox_mem_pool); + + /* There is no completion for a KILL_BOARD mbox cmd. Check for an error + * attention every 100ms for 3 seconds. If we don't get ERATT after + * 3 seconds we still set HBA_ERROR state because the status of the + * board is now undefined. + */ + ha_copy = readl(phba->HAregaddr); + + while ((i++ < 30) && !(ha_copy & HA_ERATT)) { + mdelay(100); + ha_copy = readl(phba->HAregaddr); + } + + del_timer_sync(&psli->mbox_tmo); + + spin_lock_irq(phba->host->host_lock); + psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irq(phba->host->host_lock); + + psli->mbox_active = NULL; + lpfc_hba_down_post(phba); + phba->hba_state = LPFC_HBA_ERROR; + + return (ha_copy & HA_ERATT ? 0 : 1); } -static int -lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post) +int +lpfc_sli_brdreset(struct lpfc_hba * phba) { + struct lpfc_sli *psli; struct lpfc_sli_ring *pring; + uint16_t cfg_value; int i; - struct lpfc_dmabuf *mp, *next_mp; - unsigned long flags = 0; - - lpfc_sli_send_reset(phba, skip_post); - mdelay(1); - spin_lock_irqsave(phba->host->host_lock, flags); - /* Risk the write on flush case ie no delay after the readl */ - readl(phba->HCregaddr); /* flush */ - /* Now toggle INITFF bit set by lpfc_sli_send_reset */ - writel(0, phba->HCregaddr); - readl(phba->HCregaddr); /* flush */ + psli = &phba->sli; - /* Restore PCI cmd register */ - pci_write_config_word(phba->pcidev, PCI_COMMAND, phba->pci_cfg_value); + /* Reset HBA */ + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no, + phba->hba_state, psli->sli_flag); /* perform board reset */ phba->fc_eventTag = 0; phba->fc_myDID = 0; - phba->fc_prevDID = Mask_DID; + phba->fc_prevDID = 0; - /* Reset HBA */ - lpfc_printf_log(phba, - KERN_INFO, - LOG_SLI, - "%d:0325 Reset HBA Data: x%x x%x x%x\n", - phba->brd_no, - phba->hba_state, - phba->sli.sli_flag, - skip_post); + psli->sli_flag = 0; + + /* Turn off parity checking and serr during the physical reset */ + pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); + pci_write_config_word(phba->pcidev, PCI_COMMAND, + (cfg_value & + ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); + + /* Now toggle INITFF bit in the Host Control Register */ + writel(HC_INITFF, phba->HCregaddr); + mdelay(1); + readl(phba->HCregaddr); /* flush */ + writel(0, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + + /* Restore PCI cmd register */ + pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); /* Initialize relevant SLI info */ - for (i = 0; i < phba->sli.num_rings; i++) { - pring = &phba->sli.ring[i]; + for (i = 0; i < psli->num_rings; i++) { + pring = &psli->ring[i]; pring->flag = 0; pring->rspidx = 0; pring->next_cmdidx = 0; @@ -1611,27 +1677,62 @@ lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post) pring->cmdidx = 0; pring->missbufcnt = 0; } - spin_unlock_irqrestore(phba->host->host_lock, flags); - if (skip_post) { - mdelay(100); + phba->hba_state = LPFC_WARM_START; + return 0; +} + +int +lpfc_sli_brdrestart(struct lpfc_hba * phba) +{ + MAILBOX_t *mb; + struct lpfc_sli *psli; + uint16_t skip_post; + volatile uint32_t word0; + void __iomem *to_slim; + + spin_lock_irq(phba->host->host_lock); + + psli = &phba->sli; + + /* Restart HBA */ + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no, + phba->hba_state, psli->sli_flag); + + word0 = 0; + mb = (MAILBOX_t *) &word0; + mb->mbxCommand = MBX_RESTART; + mb->mbxHc = 1; + + to_slim = phba->MBslimaddr; + writel(*(uint32_t *) mb, to_slim); + readl(to_slim); /* flush */ + + /* Only skip post after fc_ffinit is completed */ + if (phba->hba_state) { + skip_post = 1; + word0 = 1; /* This is really setting up word1 */ } else { - mdelay(2000); + skip_post = 0; + word0 = 0; /* This is really setting up word1 */ } + to_slim = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t); + writel(*(uint32_t *) mb, to_slim); + readl(to_slim); /* flush */ - spin_lock_irqsave(phba->host->host_lock, flags); - /* Cleanup preposted buffers on the ELS ring */ - pring = &phba->sli.ring[LPFC_ELS_RING]; - list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { - list_del(&mp->list); - pring->postbufq_cnt--; - lpfc_mbuf_free(phba, mp->virt, mp->phys); - kfree(mp); - } - spin_unlock_irqrestore(phba->host->host_lock, flags); + lpfc_sli_brdreset(phba); - for (i = 0; i < phba->sli.num_rings; i++) - lpfc_sli_abort_iocb_ring(phba, &phba->sli.ring[i]); + phba->hba_state = LPFC_INIT_START; + + spin_unlock_irq(phba->host->host_lock); + + if (skip_post) + mdelay(100); + else + mdelay(2000); + + lpfc_hba_down_post(phba); return 0; } @@ -1691,7 +1792,8 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba) } if (i == 15) { - lpfc_sli_brdreset(phba, 0); + phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */ + lpfc_sli_brdrestart(phba); } /* Read the HBA Host Status Register */ status = readl(phba->HSregaddr); @@ -1735,8 +1837,8 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba) } while (resetcount < 2 && !done) { - phba->hba_state = 0; - lpfc_sli_brdreset(phba, 0); + phba->hba_state = LPFC_STATE_UNKNOWN; + lpfc_sli_brdrestart(phba); msleep(2500); rc = lpfc_sli_chipset_init(phba); if (rc) @@ -1920,6 +2022,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) mb = &pmbox->mb; status = MBX_SUCCESS; + if (phba->hba_state == LPFC_HBA_ERROR) { + spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); + + /* Mbox command cannot issue */ + LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) + return (MBX_NOT_FINISHED); + } + if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { /* Polling for a mbox command when another one is already active * is not allowed in SLI. Also, the driver must have established @@ -2002,7 +2112,8 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) /* If we are not polling, we MUST be in SLI2 mode */ if (flag != MBX_POLL) { - if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { + if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && + (mb->mbxCommand != MBX_KILL_BOARD)) { psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); @@ -2035,7 +2146,8 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) /* First copy command data to host SLIM area */ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); } else { - if (mb->mbxCommand == MBX_CONFIG_PORT) { + if (mb->mbxCommand == MBX_CONFIG_PORT || + mb->mbxCommand == MBX_KILL_BOARD) { /* copy command data into host mbox for cmpl */ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); @@ -2086,8 +2198,9 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) ha_copy = readl(phba->HAregaddr); /* Wait for command to complete */ - while (((word0 & OWN_CHIP) == OWN_CHIP) - || !(ha_copy & HA_MBATT)) { + while (((word0 & OWN_CHIP) == OWN_CHIP) || + (!(ha_copy & HA_MBATT) && + (phba->hba_state > LPFC_WARM_START))) { if (i++ >= 100) { psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; spin_unlock_irqrestore(phba->host->host_lock, @@ -2455,15 +2568,6 @@ lpfc_sli_hba_down(struct lpfc_hba * phba) spin_unlock_irqrestore(phba->host->host_lock, flags); - /* - * Provided the hba is not in an error state, reset it. It is not - * capable of IO anymore. - */ - if (phba->hba_state != LPFC_HBA_ERROR) { - phba->hba_state = LPFC_INIT_START; - lpfc_sli_brdreset(phba, 1); - } - return 1; } @@ -2976,13 +3080,6 @@ lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs) /* Clear Chip error bit */ writel(HA_ERATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ - - /* - * Reseting the HBA is the only reliable way - * to shutdown interrupt when there is a - * ERROR. - */ - lpfc_sli_send_reset(phba, 1); } spin_lock(phba->host->host_lock); -- cgit v1.2.3-18-g5258