diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 2885 |
1 files changed, 2885 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c new file mode 100644 index 00000000000..8d14b28c80b --- /dev/null +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -0,0 +1,2885 @@ +/******************************************************************* + * This file is part of the Emulex Linux Device Driver for * + * Enterprise Fibre Channel Host Bus Adapters. * + * Refer to the README file included with this package for * + * driver version and adapter support. * + * Copyright (C) 2004 Emulex Corporation. * + * www.emulex.com * + * * + * This program is free software; you can redistribute it and/or * + * modify it under the terms of the GNU General Public License * + * as published by the Free Software Foundation; either version 2 * + * of the License, or (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details, a copy of which * + * can be found in the file COPYING included with this package. * + *******************************************************************/ + +/* + * $Id: lpfc_sli.c 1.232 2005/04/13 11:59:16EDT sf_support Exp $ + */ + +#include <linux/blkdev.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/delay.h> + +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> + +#include "lpfc_hw.h" +#include "lpfc_sli.h" +#include "lpfc_disc.h" +#include "lpfc_scsi.h" +#include "lpfc.h" +#include "lpfc_crtn.h" +#include "lpfc_logmsg.h" +#include "lpfc_compat.h" + +/* + * Define macro to log: Mailbox command x%x cannot issue Data + * This allows multiple uses of lpfc_msgBlk0311 + * w/o perturbing log msg utility. + */ +#define LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) \ + lpfc_printf_log(phba, \ + KERN_INFO, \ + LOG_MBOX | LOG_SLI, \ + "%d:0311 Mailbox command x%x cannot issue " \ + "Data: x%x x%x x%x\n", \ + phba->brd_no, \ + mb->mbxCommand, \ + phba->hba_state, \ + psli->sli_flag, \ + flag); + + +/* There are only four IOCB completion types. */ +typedef enum _lpfc_iocb_type { + LPFC_UNKNOWN_IOCB, + LPFC_UNSOL_IOCB, + LPFC_SOL_IOCB, + LPFC_ABORT_IOCB +} lpfc_iocb_type; + +/* + * Translate the iocb command to an iocb command type used to decide the final + * disposition of each completed IOCB. + */ +static lpfc_iocb_type +lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) +{ + lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; + + if (iocb_cmnd > CMD_MAX_IOCB_CMD) + return 0; + + switch (iocb_cmnd) { + case CMD_XMIT_SEQUENCE_CR: + case CMD_XMIT_SEQUENCE_CX: + case CMD_XMIT_BCAST_CN: + case CMD_XMIT_BCAST_CX: + case CMD_ELS_REQUEST_CR: + case CMD_ELS_REQUEST_CX: + case CMD_CREATE_XRI_CR: + case CMD_CREATE_XRI_CX: + case CMD_GET_RPI_CN: + case CMD_XMIT_ELS_RSP_CX: + case CMD_GET_RPI_CR: + case CMD_FCP_IWRITE_CR: + case CMD_FCP_IWRITE_CX: + case CMD_FCP_IREAD_CR: + case CMD_FCP_IREAD_CX: + case CMD_FCP_ICMND_CR: + case CMD_FCP_ICMND_CX: + case CMD_ADAPTER_MSG: + case CMD_ADAPTER_DUMP: + case CMD_XMIT_SEQUENCE64_CR: + case CMD_XMIT_SEQUENCE64_CX: + case CMD_XMIT_BCAST64_CN: + case CMD_XMIT_BCAST64_CX: + case CMD_ELS_REQUEST64_CR: + case CMD_ELS_REQUEST64_CX: + case CMD_FCP_IWRITE64_CR: + case CMD_FCP_IWRITE64_CX: + case CMD_FCP_IREAD64_CR: + case CMD_FCP_IREAD64_CX: + case CMD_FCP_ICMND64_CR: + case CMD_FCP_ICMND64_CX: + case CMD_GEN_REQUEST64_CR: + case CMD_GEN_REQUEST64_CX: + case CMD_XMIT_ELS_RSP64_CX: + type = LPFC_SOL_IOCB; + break; + case CMD_ABORT_XRI_CN: + case CMD_ABORT_XRI_CX: + case CMD_CLOSE_XRI_CN: + case CMD_CLOSE_XRI_CX: + case CMD_XRI_ABORTED_CX: + case CMD_ABORT_MXRI64_CN: + type = LPFC_ABORT_IOCB; + break; + case CMD_RCV_SEQUENCE_CX: + case CMD_RCV_ELS_REQ_CX: + case CMD_RCV_SEQUENCE64_CX: + case CMD_RCV_ELS_REQ64_CX: + type = LPFC_UNSOL_IOCB; + break; + default: + type = LPFC_UNKNOWN_IOCB; + break; + } + + return type; +} + +static int +lpfc_sli_ring_map(struct lpfc_hba * phba, LPFC_MBOXQ_t *pmb) +{ + struct lpfc_sli *psli = &phba->sli; + MAILBOX_t *pmbox = &pmb->mb; + int i, rc; + + for (i = 0; i < psli->num_rings; i++) { + phba->hba_state = LPFC_INIT_MBX_CMDS; + lpfc_config_ring(phba, i, pmb); + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, + KERN_ERR, + LOG_INIT, + "%d:0446 Adapter failed to init, " + "mbxCmd x%x CFG_RING, mbxStatus x%x, " + "ring %d\n", + phba->brd_no, + pmbox->mbxCommand, + pmbox->mbxStatus, + i); + phba->hba_state = LPFC_HBA_ERROR; + return -ENXIO; + } + } + return 0; +} + +static int +lpfc_sli_ringtxcmpl_put(struct lpfc_hba * phba, + struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocb) +{ + uint16_t iotag; + + list_add_tail(&piocb->list, &pring->txcmplq); + pring->txcmplq_cnt++; + if (unlikely(pring->ringno == LPFC_ELS_RING)) + mod_timer(&phba->els_tmofunc, + jiffies + HZ * (phba->fc_ratov << 1)); + + if (pring->fast_lookup) { + /* Setup fast lookup based on iotag for completion */ + iotag = piocb->iocb.ulpIoTag; + if (iotag && (iotag < pring->fast_iotag)) + *(pring->fast_lookup + iotag) = piocb; + else { + + /* Cmd ring <ringno> put: iotag <iotag> greater then + configured max <fast_iotag> wd0 <icmd> */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_SLI, + "%d:0316 Cmd ring %d put: iotag x%x " + "greater then configured max x%x " + "wd0 x%x\n", + phba->brd_no, + pring->ringno, iotag, + pring->fast_iotag, + *(((uint32_t *)(&piocb->iocb)) + 7)); + } + } + return (0); +} + +static struct lpfc_iocbq * +lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) +{ + struct list_head *dlp; + struct lpfc_iocbq *cmd_iocb; + + dlp = &pring->txq; + cmd_iocb = NULL; + list_remove_head((&pring->txq), cmd_iocb, + struct lpfc_iocbq, + list); + if (cmd_iocb) { + /* If the first ptr is not equal to the list header, + * deque the IOCBQ_t and return it. + */ + pring->txq_cnt--; + } + return (cmd_iocb); +} + +static IOCB_t * +lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) +{ + MAILBOX_t *mbox = (MAILBOX_t *)phba->sli.MBhostaddr; + PGP *pgp = (PGP *)&mbox->us.s2.port[pring->ringno]; + uint32_t max_cmd_idx = pring->numCiocb; + IOCB_t *iocb = NULL; + + if ((pring->next_cmdidx == pring->cmdidx) && + (++pring->next_cmdidx >= max_cmd_idx)) + pring->next_cmdidx = 0; + + if (unlikely(pring->local_getidx == pring->next_cmdidx)) { + + pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); + + if (unlikely(pring->local_getidx >= max_cmd_idx)) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "%d:0315 Ring %d issue: portCmdGet %d " + "is bigger then cmd ring %d\n", + phba->brd_no, pring->ringno, + pring->local_getidx, max_cmd_idx); + + phba->hba_state = LPFC_HBA_ERROR; + /* + * All error attention handlers are posted to + * worker thread + */ + phba->work_ha |= HA_ERATT; + phba->work_hs = HS_FFER3; + if (phba->work_wait) + wake_up(phba->work_wait); + + return NULL; + } + + if (pring->local_getidx == pring->next_cmdidx) + return NULL; + } + + iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx); + + return iocb; +} + +static uint32_t +lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) +{ + uint32_t search_start; + + if (pring->fast_lookup == NULL) { + pring->iotag_ctr++; + if (pring->iotag_ctr >= pring->iotag_max) + pring->iotag_ctr = 1; + return pring->iotag_ctr; + } + + search_start = pring->iotag_ctr; + + do { + pring->iotag_ctr++; + if (pring->iotag_ctr >= pring->fast_iotag) + pring->iotag_ctr = 1; + + if (*(pring->fast_lookup + pring->iotag_ctr) == NULL) + return pring->iotag_ctr; + + } while (pring->iotag_ctr != search_start); + + /* + * Outstanding I/O count for ring <ringno> is at max <fast_iotag> + */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_SLI, + "%d:0318 Outstanding I/O count for ring %d is at max x%x\n", + phba->brd_no, + pring->ringno, + pring->fast_iotag); + return (0); +} + +static void +lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + IOCB_t *iocb, struct lpfc_iocbq *nextiocb) +{ + /* + * Allocate and set up an iotag + */ + nextiocb->iocb.ulpIoTag = + lpfc_sli_next_iotag(phba, &phba->sli.ring[phba->sli.fcp_ring]); + + /* + * Issue iocb command to adapter + */ + lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t)); + wmb(); + pring->stats.iocb_cmd++; + + /* + * If there is no completion routine to call, we can release the + * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, + * that have no rsp ring completion, iocb_cmpl MUST be NULL. + */ + if (nextiocb->iocb_cmpl) + lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); + else { + list_add_tail(&nextiocb->list, &phba->lpfc_iocb_list); + } + + /* + * Let the HBA know what IOCB slot will be the next one the + * driver will put a command into. + */ + pring->cmdidx = pring->next_cmdidx; + writeb(pring->cmdidx, phba->MBslimaddr + + (SLIMOFF + (pring->ringno * 2)) * 4); +} + +static void +lpfc_sli_update_full_ring(struct lpfc_hba * phba, + struct lpfc_sli_ring *pring) +{ + int ringno = pring->ringno; + + pring->flag |= LPFC_CALL_RING_AVAILABLE; + + wmb(); + + /* + * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. + * The HBA will tell us when an IOCB entry is available. + */ + writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); + readl(phba->CAregaddr); /* flush */ + + pring->stats.iocb_cmd_full++; +} + +static void +lpfc_sli_update_ring(struct lpfc_hba * phba, + struct lpfc_sli_ring *pring) +{ + int ringno = pring->ringno; + + /* + * Tell the HBA that there is work to do in this ring. + */ + wmb(); + writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); + readl(phba->CAregaddr); /* flush */ +} + +static void +lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) +{ + IOCB_t *iocb; + struct lpfc_iocbq *nextiocb; + + /* + * Check to see if: + * (a) there is anything on the txq to send + * (b) link is up + * (c) link attention events can be processed (fcp ring only) + * (d) IOCB processing is not blocked by the outstanding mbox command. + */ + if (pring->txq_cnt && + (phba->hba_state > LPFC_LINK_DOWN) && + (pring->ringno != phba->sli.fcp_ring || + phba->sli.sli_flag & LPFC_PROCESS_LA) && + !(pring->flag & LPFC_STOP_IOCB_MBX)) { + + while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && + (nextiocb = lpfc_sli_ringtx_get(phba, pring))) + lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); + + if (iocb) + lpfc_sli_update_ring(phba, pring); + else + lpfc_sli_update_full_ring(phba, pring); + } + + return; +} + +/* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */ +static void +lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno) +{ + PGP *pgp = + ((PGP *) & + (((MAILBOX_t *)phba->sli.MBhostaddr)->us.s2.port[ringno])); + + /* If the ring is active, flag it */ + if (phba->sli.ring[ringno].cmdringaddr) { + if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) { + phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX; + /* + * Force update of the local copy of cmdGetInx + */ + phba->sli.ring[ringno].local_getidx + = le32_to_cpu(pgp->cmdGetInx); + spin_lock_irq(phba->host->host_lock); + lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]); + spin_unlock_irq(phba->host->host_lock); + } + } +} + +static int +lpfc_sli_chk_mbx_command(uint8_t mbxCommand) +{ + uint8_t ret; + + switch (mbxCommand) { + case MBX_LOAD_SM: + case MBX_READ_NV: + case MBX_WRITE_NV: + case MBX_RUN_BIU_DIAG: + case MBX_INIT_LINK: + case MBX_DOWN_LINK: + case MBX_CONFIG_LINK: + case MBX_CONFIG_RING: + case MBX_RESET_RING: + case MBX_READ_CONFIG: + case MBX_READ_RCONFIG: + case MBX_READ_SPARM: + case MBX_READ_STATUS: + case MBX_READ_RPI: + case MBX_READ_XRI: + case MBX_READ_REV: + case MBX_READ_LNK_STAT: + case MBX_REG_LOGIN: + case MBX_UNREG_LOGIN: + case MBX_READ_LA: + case MBX_CLEAR_LA: + case MBX_DUMP_MEMORY: + case MBX_DUMP_CONTEXT: + case MBX_RUN_DIAGS: + case MBX_RESTART: + case MBX_UPDATE_CFG: + case MBX_DOWN_LOAD: + case MBX_DEL_LD_ENTRY: + case MBX_RUN_PROGRAM: + case MBX_SET_MASK: + case MBX_SET_SLIM: + case MBX_UNREG_D_ID: + case MBX_CONFIG_FARP: + case MBX_LOAD_AREA: + case MBX_RUN_BIU_DIAG64: + case MBX_CONFIG_PORT: + case MBX_READ_SPARM64: + case MBX_READ_RPI64: + case MBX_REG_LOGIN64: + case MBX_READ_LA64: + case MBX_FLASH_WR_ULA: + case MBX_SET_DEBUG: + case MBX_LOAD_EXP_ROM: + ret = mbxCommand; + break; + default: + ret = MBX_SHUTDOWN; + break; + } + return (ret); +} +static void +lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) +{ + wait_queue_head_t *pdone_q; + + /* + * If pdone_q is empty, the driver thread gave up waiting and + * continued running. + */ + pdone_q = (wait_queue_head_t *) pmboxq->context1; + if (pdone_q) + wake_up_interruptible(pdone_q); + return; +} + +void +lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) +{ + struct lpfc_dmabuf *mp; + mp = (struct lpfc_dmabuf *) (pmb->context1); + if (mp) { + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + } + mempool_free( pmb, phba->mbox_mem_pool); + return; +} + +int +lpfc_sli_handle_mb_event(struct lpfc_hba * phba) +{ + MAILBOX_t *mbox; + MAILBOX_t *pmbox; + LPFC_MBOXQ_t *pmb; + struct lpfc_sli *psli; + int i, rc; + uint32_t process_next; + + psli = &phba->sli; + /* We should only get here if we are in SLI2 mode */ + if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) { + return (1); + } + + phba->sli.slistat.mbox_event++; + + /* Get a Mailbox buffer to setup mailbox commands for callback */ + if ((pmb = phba->sli.mbox_active)) { + pmbox = &pmb->mb; + mbox = (MAILBOX_t *) phba->sli.MBhostaddr; + + /* First check out the status word */ + lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t)); + + /* Sanity check to ensure the host owns the mailbox */ + if (pmbox->mbxOwner != OWN_HOST) { + /* Lets try for a while */ + for (i = 0; i < 10240; i++) { + /* First copy command data */ + lpfc_sli_pcimem_bcopy(mbox, pmbox, + sizeof (uint32_t)); + if (pmbox->mbxOwner == OWN_HOST) + goto mbout; + } + /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus + <status> */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_MBOX | LOG_SLI, + "%d:0304 Stray Mailbox Interrupt " + "mbxCommand x%x mbxStatus x%x\n", + phba->brd_no, + pmbox->mbxCommand, + pmbox->mbxStatus); + + spin_lock_irq(phba->host->host_lock); + phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irq(phba->host->host_lock); + return (1); + } + + mbout: + del_timer_sync(&phba->sli.mbox_tmo); + phba->work_hba_events &= ~WORKER_MBOX_TMO; + + /* + * It is a fatal error if unknown mbox command completion. + */ + if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == + MBX_SHUTDOWN) { + + /* Unknow mailbox command compl */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_MBOX | LOG_SLI, + "%d:0323 Unknown Mailbox command %x Cmpl\n", + phba->brd_no, + pmbox->mbxCommand); + phba->hba_state = LPFC_HBA_ERROR; + phba->work_hs = HS_FFER3; + lpfc_handle_eratt(phba); + return (0); + } + + phba->sli.mbox_active = NULL; + if (pmbox->mbxStatus) { + phba->sli.slistat.mbox_stat_err++; + if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { + /* Mbox cmd cmpl error - RETRYing */ + lpfc_printf_log(phba, + KERN_INFO, + LOG_MBOX | LOG_SLI, + "%d:0305 Mbox cmd cmpl error - " + "RETRYing Data: x%x x%x x%x x%x\n", + phba->brd_no, + pmbox->mbxCommand, + pmbox->mbxStatus, + pmbox->un.varWords[0], + phba->hba_state); + pmbox->mbxStatus = 0; + pmbox->mbxOwner = OWN_HOST; + spin_lock_irq(phba->host->host_lock); + phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irq(phba->host->host_lock); + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + if (rc == MBX_SUCCESS) + return (0); + } + } + + /* Mailbox cmd <cmd> Cmpl <cmpl> */ + lpfc_printf_log(phba, + KERN_INFO, + LOG_MBOX | LOG_SLI, + "%d:0307 Mailbox cmd x%x Cmpl x%p " + "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", + phba->brd_no, + pmbox->mbxCommand, + pmb->mbox_cmpl, + *((uint32_t *) pmbox), + pmbox->un.varWords[0], + pmbox->un.varWords[1], + pmbox->un.varWords[2], + pmbox->un.varWords[3], + pmbox->un.varWords[4], + pmbox->un.varWords[5], + pmbox->un.varWords[6], + pmbox->un.varWords[7]); + + if (pmb->mbox_cmpl) { + lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE); + pmb->mbox_cmpl(phba,pmb); + } + } + + + do { + process_next = 0; /* by default don't loop */ + spin_lock_irq(phba->host->host_lock); + phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + + /* Process next mailbox command if there is one */ + if ((pmb = lpfc_mbox_get(phba))) { + spin_unlock_irq(phba->host->host_lock); + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) { + pmb->mb.mbxStatus = MBX_NOT_FINISHED; + pmb->mbox_cmpl(phba,pmb); + process_next = 1; + continue; /* loop back */ + } + } else { + spin_unlock_irq(phba->host->host_lock); + /* Turn on IOCB processing */ + for (i = 0; i < phba->sli.num_rings; i++) { + lpfc_sli_turn_on_ring(phba, i); + } + + /* Free any lpfc_dmabuf's waiting for mbox cmd cmpls */ + while (!list_empty(&phba->freebufList)) { + struct lpfc_dmabuf *mp; + + mp = NULL; + list_remove_head((&phba->freebufList), + mp, + struct lpfc_dmabuf, + list); + if (mp) { + lpfc_mbuf_free(phba, mp->virt, + mp->phys); + kfree(mp); + } + } + } + + } while (process_next); + + return (0); +} +static int +lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + struct lpfc_iocbq *saveq) +{ + IOCB_t * irsp; + WORD5 * w5p; + uint32_t Rctl, Type; + uint32_t match, i; + + match = 0; + irsp = &(saveq->iocb); + if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) + || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) { + Rctl = FC_ELS_REQ; + Type = FC_ELS_DATA; + } else { + w5p = + (WORD5 *) & (saveq->iocb.un. + ulpWord[5]); + Rctl = w5p->hcsw.Rctl; + Type = w5p->hcsw.Type; + + /* Firmware Workaround */ + if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && + (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) { + Rctl = FC_ELS_REQ; + Type = FC_ELS_DATA; + w5p->hcsw.Rctl = Rctl; + w5p->hcsw.Type = Type; + } + } + /* unSolicited Responses */ + if (pring->prt[0].profile) { + (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, saveq); + match = 1; + } else { + /* We must search, based on rctl / type + for the right routine */ + for (i = 0; i < pring->num_mask; + i++) { + if ((pring->prt[i].rctl == + Rctl) + && (pring->prt[i]. + type == Type)) { + (pring->prt[i].lpfc_sli_rcv_unsol_event) + (phba, pring, saveq); + match = 1; + break; + } + } + } + if (match == 0) { + /* Unexpected Rctl / Type received */ + /* Ring <ringno> handler: unexpected + Rctl <Rctl> Type <Type> received */ + lpfc_printf_log(phba, + KERN_WARNING, + LOG_SLI, + "%d:0313 Ring %d handler: unexpected Rctl x%x " + "Type x%x received \n", + phba->brd_no, + pring->ringno, + Rctl, + Type); + } + return(1); +} + +static struct lpfc_iocbq * +lpfc_sli_txcmpl_ring_search_slow(struct lpfc_sli_ring * pring, + struct lpfc_iocbq * prspiocb) +{ + IOCB_t *icmd = NULL; + IOCB_t *irsp = NULL; + struct lpfc_iocbq *cmd_iocb; + struct lpfc_iocbq *iocb, *next_iocb; + uint16_t iotag; + + irsp = &prspiocb->iocb; + iotag = irsp->ulpIoTag; + cmd_iocb = NULL; + + /* Search through txcmpl from the begining */ + list_for_each_entry_safe(iocb, next_iocb, &(pring->txcmplq), list) { + icmd = &iocb->iocb; + if (iotag == icmd->ulpIoTag) { + /* Found a match. */ + cmd_iocb = iocb; + list_del(&iocb->list); + pring->txcmplq_cnt--; + break; + } + } + + return (cmd_iocb); +} + +static struct lpfc_iocbq * +lpfc_sli_txcmpl_ring_iotag_lookup(struct lpfc_hba * phba, + struct lpfc_sli_ring * pring, + struct lpfc_iocbq * prspiocb) +{ + IOCB_t *irsp = NULL; + struct lpfc_iocbq *cmd_iocb = NULL; + uint16_t iotag; + + if (unlikely(pring->fast_lookup == NULL)) + return NULL; + + /* Use fast lookup based on iotag for completion */ + irsp = &prspiocb->iocb; + iotag = irsp->ulpIoTag; + if (iotag < pring->fast_iotag) { + cmd_iocb = *(pring->fast_lookup + iotag); + *(pring->fast_lookup + iotag) = NULL; + if (cmd_iocb) { + list_del(&cmd_iocb->list); + pring->txcmplq_cnt--; + return cmd_iocb; + } else { + /* + * This is clearly an error. A ring that uses iotags + * should never have a interrupt for a completion that + * is not on the ring. Return NULL and log a error. + */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "%d:0327 Rsp ring %d error - command " + "completion for iotag x%x not found\n", + phba->brd_no, pring->ringno, iotag); + return NULL; + } + } + + /* + * Rsp ring <ringno> get: iotag <iotag> greater then + * configured max <fast_iotag> wd0 <irsp>. This is an + * error. Just return NULL. + */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "%d:0317 Rsp ring %d get: iotag x%x greater then " + "configured max x%x wd0 x%x\n", + phba->brd_no, pring->ringno, iotag, pring->fast_iotag, + *(((uint32_t *) irsp) + 7)); + return NULL; +} + +static int +lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, + struct lpfc_iocbq *saveq) +{ + struct lpfc_iocbq * cmdiocbp; + int rc = 1; + unsigned long iflag; + + /* Based on the iotag field, get the cmd IOCB from the txcmplq */ + spin_lock_irqsave(phba->host->host_lock, iflag); + cmdiocbp = lpfc_sli_txcmpl_ring_search_slow(pring, saveq); + if (cmdiocbp) { + if (cmdiocbp->iocb_cmpl) { + /* + * Post all ELS completions to the worker thread. + * All other are passed to the completion callback. + */ + if (pring->ringno == LPFC_ELS_RING) { + spin_unlock_irqrestore(phba->host->host_lock, + iflag); + (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); + spin_lock_irqsave(phba->host->host_lock, iflag); + } + else { + if (cmdiocbp->iocb_flag & LPFC_IO_POLL) + rc = 0; + + spin_unlock_irqrestore(phba->host->host_lock, + iflag); + (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); + spin_lock_irqsave(phba->host->host_lock, iflag); + } + } else { + list_add_tail(&cmdiocbp->list, &phba->lpfc_iocb_list); + } + } else { + /* + * Unknown initiating command based on the response iotag. + * This could be the case on the ELS ring because of + * lpfc_els_abort(). + */ + if (pring->ringno != LPFC_ELS_RING) { + /* + * Ring <ringno> handler: unexpected completion IoTag + * <IoTag> + */ + lpfc_printf_log(phba, + KERN_WARNING, + LOG_SLI, + "%d:0322 Ring %d handler: unexpected " + "completion IoTag x%x Data: x%x x%x x%x x%x\n", + phba->brd_no, + pring->ringno, + saveq->iocb.ulpIoTag, + saveq->iocb.ulpStatus, + saveq->iocb.un.ulpWord[4], + saveq->iocb.ulpCommand, + saveq->iocb.ulpContext); + } + } + spin_unlock_irqrestore(phba->host->host_lock, iflag); + return rc; +} + +/* + * This routine presumes LPFC_FCP_RING handling and doesn't bother + * to check it explicitly. + */ +static int +lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, + struct lpfc_sli_ring * pring, uint32_t mask) +{ + IOCB_t *irsp = NULL; + struct lpfc_iocbq *cmdiocbq = NULL; + struct lpfc_iocbq rspiocbq; + PGP *pgp; + uint32_t status; + uint32_t portRspPut, portRspMax; + int rc = 1; + lpfc_iocb_type type; + unsigned long iflag; + uint32_t rsp_cmpl = 0; + void __iomem *to_slim; + + spin_lock_irqsave(phba->host->host_lock, iflag); + pring->stats.iocb_event++; + + /* The driver assumes SLI-2 mode */ + pgp = (PGP *) &((MAILBOX_t *) phba->sli.MBhostaddr) + ->us.s2.port[pring->ringno]; + + /* + * The next available response entry should never exceed the maximum + * entries. If it does, treat it as an adapter hardware error. + */ + portRspMax = pring->numRiocb; + portRspPut = le32_to_cpu(pgp->rspPutInx); + if (unlikely(portRspPut >= portRspMax)) { + /* + * Ring <ringno> handler: portRspPut <portRspPut> is bigger then + * rsp ring <portRspMax> + */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "%d:0312 Ring %d handler: portRspPut %d " + "is bigger then rsp ring %d\n", + phba->brd_no, pring->ringno, portRspPut, + portRspMax); + + phba->hba_state = LPFC_HBA_ERROR; + + /* All error attention handlers are posted to worker thread */ + phba->work_ha |= HA_ERATT; + phba->work_hs = HS_FFER3; + if (phba->work_wait) + wake_up(phba->work_wait); + + spin_unlock_irqrestore(phba->host->host_lock, iflag); + return 1; + } + + rmb(); + while (pring->rspidx != portRspPut) { + irsp = (IOCB_t *) IOCB_ENTRY(pring->rspringaddr, pring->rspidx); + type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); + pring->stats.iocb_rsp++; + rsp_cmpl++; + + if (unlikely(irsp->ulpStatus)) { + /* Rsp ring <ringno> error: IOCB */ + lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, + "%d:0326 Rsp Ring %d error: IOCB Data: " + "x%x x%x x%x x%x x%x x%x x%x x%x\n", + phba->brd_no, pring->ringno, + irsp->un.ulpWord[0], irsp->un.ulpWord[1], + irsp->un.ulpWord[2], irsp->un.ulpWord[3], + irsp->un.ulpWord[4], irsp->un.ulpWord[5], + *(((uint32_t *) irsp) + 6), + *(((uint32_t *) irsp) + 7)); + } + + switch (type) { + case LPFC_ABORT_IOCB: + case LPFC_SOL_IOCB: + /* + * Idle exchange closed via ABTS from port. No iocb + * resources need to be recovered. + */ + if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { + printk(KERN_INFO "%s: IOCB cmd 0x%x processed. " + "Skipping completion\n", __FUNCTION__, + irsp->ulpCommand); + break; + } + + rspiocbq.iocb.un.ulpWord[4] = irsp->un.ulpWord[4]; + rspiocbq.iocb.ulpStatus = irsp->ulpStatus; + rspiocbq.iocb.ulpContext = irsp->ulpContext; + rspiocbq.iocb.ulpIoTag = irsp->ulpIoTag; + cmdiocbq = lpfc_sli_txcmpl_ring_iotag_lookup(phba, + pring, + &rspiocbq); + if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { + spin_unlock_irqrestore( + phba->host->host_lock, iflag); + (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, + &rspiocbq); + spin_lock_irqsave(phba->host->host_lock, + iflag); + } + break; + default: + if (irsp->ulpCommand == CMD_ADAPTER_MSG) { + char adaptermsg[LPFC_MAX_ADPTMSG]; + memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); + memcpy(&adaptermsg[0], (uint8_t *) irsp, + MAX_MSG_DATA); + dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", + phba->brd_no, adaptermsg); + } else { + /* Unknown IOCB command */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "%d:0321 Unknown IOCB command " + "Data: x%x, x%x x%x x%x x%x\n", + phba->brd_no, type, irsp->ulpCommand, + irsp->ulpStatus, irsp->ulpIoTag, + irsp->ulpContext); + } + break; + } + + /* + * The response IOCB has been processed. Update the ring + * pointer in SLIM. If the port response put pointer has not + * been updated, sync the pgp->rspPutInx and fetch the new port + * response put pointer. + */ + if (++pring->rspidx >= portRspMax) + pring->rspidx = 0; + + to_slim = phba->MBslimaddr + + (SLIMOFF + (pring->ringno * 2) + 1) * 4; + writeb(pring->rspidx, to_slim); + + if (pring->rspidx == portRspPut) + portRspPut = le32_to_cpu(pgp->rspPutInx); + } + + if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { + pring->stats.iocb_rsp_full++; + status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); + writel(status, phba->CAregaddr); + readl(phba->CAregaddr); + } + if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { + pring->flag &= ~LPFC_CALL_RING_AVAILABLE; + pring->stats.iocb_cmd_empty++; + + /* Force update of the local copy of cmdGetInx */ + pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); + lpfc_sli_resume_iocb(phba, pring); + + if ((pring->lpfc_sli_cmd_available)) + (pring->lpfc_sli_cmd_available) (phba, pring); + + } + + spin_unlock_irqrestore(phba->host->host_lock, iflag); + return rc; +} + + +int +lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, + struct lpfc_sli_ring * pring, uint32_t mask) +{ + IOCB_t *entry; + IOCB_t *irsp = NULL; + struct lpfc_iocbq *rspiocbp = NULL; + struct lpfc_iocbq *next_iocb; + struct lpfc_iocbq *cmdiocbp; + struct lpfc_iocbq *saveq; + struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; + HGP *hgp; + PGP *pgp; + MAILBOX_t *mbox; + uint8_t iocb_cmd_type; + lpfc_iocb_type type; + uint32_t status, free_saveq; + uint32_t portRspPut, portRspMax; + int rc = 1; + unsigned long iflag; + void __iomem *to_slim; + + spin_lock_irqsave(phba->host->host_lock, iflag); + pring->stats.iocb_event++; + + /* The driver assumes SLI-2 mode */ + mbox = (MAILBOX_t *) phba->sli.MBhostaddr; + pgp = (PGP *) & mbox->us.s2.port[pring->ringno]; + hgp = (HGP *) & mbox->us.s2.host[pring->ringno]; + + /* + * The next available response entry should never exceed the maximum + * entries. If it does, treat it as an adapter hardware error. + */ + portRspMax = pring->numRiocb; + portRspPut = le32_to_cpu(pgp->rspPutInx); + if (portRspPut >= portRspMax) { + /* + * Ring <ringno> handler: portRspPut <portRspPut> is bigger then + * rsp ring <portRspMax> + */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_SLI, + "%d:0312 Ring %d handler: portRspPut %d " + "is bigger then rsp ring %d\n", + phba->brd_no, + pring->ringno, portRspPut, portRspMax); + + phba->hba_state = LPFC_HBA_ERROR; + spin_unlock_irqrestore(phba->host->host_lock, iflag); + + phba->work_hs = HS_FFER3; + lpfc_handle_eratt(phba); + + return 1; + } + + rmb(); + lpfc_iocb_list = &phba->lpfc_iocb_list; + while (pring->rspidx != portRspPut) { + /* + * Build a completion list and call the appropriate handler. + * The process is to get the next available response iocb, get + * a free iocb from the list, copy the response data into the + * free iocb, insert to the continuation list, and update the + * next response index to slim. This process makes response + * iocb's in the ring available to DMA as fast as possible but + * pays a penalty for a copy operation. Since the iocb is + * only 32 bytes, this penalty is considered small relative to + * the PCI reads for register values and a slim write. When + * the ulpLe field is set, the entire Command has been + * received. + */ + entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); + list_remove_head(lpfc_iocb_list, rspiocbp, struct lpfc_iocbq, + list); + if (rspiocbp == NULL) { + printk(KERN_ERR "%s: out of buffers! Failing " + "completion.\n", __FUNCTION__); + break; + } + + lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t)); + irsp = &rspiocbp->iocb; + + if (++pring->rspidx >= portRspMax) + pring->rspidx = 0; + + to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2) + + 1) * 4; + writeb(pring->rspidx, to_slim); + + if (list_empty(&(pring->iocb_continueq))) { + list_add(&rspiocbp->list, &(pring->iocb_continueq)); + } else { + list_add_tail(&rspiocbp->list, + &(pring->iocb_continueq)); + } + + pring->iocb_continueq_cnt++; + if (irsp->ulpLe) { + /* + * By default, the driver expects to free all resources + * associated with this iocb completion. + */ + free_saveq = 1; + saveq = list_get_first(&pring->iocb_continueq, + struct lpfc_iocbq, list); + irsp = &(saveq->iocb); + list_del_init(&pring->iocb_continueq); + pring->iocb_continueq_cnt = 0; + + pring->stats.iocb_rsp++; + + if (irsp->ulpStatus) { + /* Rsp ring <ringno> error: IOCB */ + lpfc_printf_log(phba, + KERN_WARNING, + LOG_SLI, + "%d:0328 Rsp Ring %d error: IOCB Data: " + "x%x x%x x%x x%x x%x x%x x%x x%x\n", + phba->brd_no, + pring->ringno, + irsp->un.ulpWord[0], + irsp->un.ulpWord[1], + irsp->un.ulpWord[2], + irsp->un.ulpWord[3], + irsp->un.ulpWord[4], + irsp->un.ulpWord[5], + *(((uint32_t *) irsp) + 6), + *(((uint32_t *) irsp) + 7)); + } + + /* + * Fetch the IOCB command type and call the correct + * completion routine. Solicited and Unsolicited + * IOCBs on the ELS ring get freed back to the + * lpfc_iocb_list by the discovery kernel thread. + */ + iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; + type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); + if (type == LPFC_SOL_IOCB) { + spin_unlock_irqrestore(phba->host->host_lock, + iflag); + rc = lpfc_sli_process_sol_iocb(phba, pring, + saveq); + spin_lock_irqsave(phba->host->host_lock, iflag); + } else if (type == LPFC_UNSOL_IOCB) { + spin_unlock_irqrestore(phba->host->host_lock, + iflag); + rc = lpfc_sli_process_unsol_iocb(phba, pring, + saveq); + spin_lock_irqsave(phba->host->host_lock, iflag); + } else if (type == LPFC_ABORT_IOCB) { + if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && + ((cmdiocbp = + lpfc_sli_txcmpl_ring_search_slow(pring, + saveq)))) { + /* Call the specified completion + routine */ + if (cmdiocbp->iocb_cmpl) { + spin_unlock_irqrestore( + phba->host->host_lock, + iflag); + (cmdiocbp->iocb_cmpl) (phba, + cmdiocbp, saveq); + spin_lock_irqsave( + phba->host->host_lock, + iflag); + } else { + list_add_tail(&cmdiocbp->list, + lpfc_iocb_list); + } + } + } else if (type == LPFC_UNKNOWN_IOCB) { + if (irsp->ulpCommand == CMD_ADAPTER_MSG) { + + char adaptermsg[LPFC_MAX_ADPTMSG]; + + memset(adaptermsg, 0, + LPFC_MAX_ADPTMSG); + memcpy(&adaptermsg[0], (uint8_t *) irsp, + MAX_MSG_DATA); + dev_warn(&((phba->pcidev)->dev), + "lpfc%d: %s", + phba->brd_no, adaptermsg); + } else { + /* Unknown IOCB command */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_SLI, + "%d:0321 Unknown IOCB command " + "Data: x%x x%x x%x x%x\n", + phba->brd_no, + irsp->ulpCommand, + irsp->ulpStatus, + irsp->ulpIoTag, + irsp->ulpContext); + } + } + + if (free_saveq) { + if (!list_empty(&saveq->list)) { + list_for_each_entry_safe(rspiocbp, + next_iocb, + &saveq->list, + list) { + list_add_tail(&rspiocbp->list, + lpfc_iocb_list); + } + } + + list_add_tail(&saveq->list, lpfc_iocb_list); + } + } + + /* + * If the port response put pointer has not been updated, sync + * the pgp->rspPutInx in the MAILBOX_tand fetch the new port + * response put pointer. + */ + if (pring->rspidx == portRspPut) { + portRspPut = le32_to_cpu(pgp->rspPutInx); + } + } /* while (pring->rspidx != portRspPut) */ + + if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) { + /* At least one response entry has been freed */ + pring->stats.iocb_rsp_full++; + /* SET RxRE_RSP in Chip Att register */ + status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); + writel(status, phba->CAregaddr); + readl(phba->CAregaddr); /* flush */ + } + if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { + pring->flag &= ~LPFC_CALL_RING_AVAILABLE; + pring->stats.iocb_cmd_empty++; + + /* Force update of the local copy of cmdGetInx */ + pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); + lpfc_sli_resume_iocb(phba, pring); + + if ((pring->lpfc_sli_cmd_available)) + (pring->lpfc_sli_cmd_available) (phba, pring); + + } + + spin_unlock_irqrestore(phba->host->host_lock, iflag); + return rc; +} + +int +lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) +{ + struct lpfc_iocbq *iocb, *next_iocb; + IOCB_t *icmd = NULL, *cmd = NULL; + int errcnt; + uint16_t iotag; + + errcnt = 0; + + /* Error everything on txq and txcmplq + * First do the txq. + */ + spin_lock_irq(phba->host->host_lock); + list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { + list_del_init(&iocb->list); + if (iocb->iocb_cmpl) { + icmd = &iocb->iocb; + icmd->ulpStatus = IOSTAT_LOCAL_REJECT; + icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; + spin_unlock_irq(phba->host->host_lock); + (iocb->iocb_cmpl) (phba, iocb, iocb); + spin_lock_irq(phba->host->host_lock); + } else { + list_add_tail(&iocb->list, &phba->lpfc_iocb_list); + } + } + pring->txq_cnt = 0; + INIT_LIST_HEAD(&(pring->txq)); + + /* Next issue ABTS for everything on the txcmplq */ + list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { + cmd = &iocb->iocb; + + /* + * Imediate abort of IOCB, clear fast_lookup entry, + * if any, deque and call compl + */ + iotag = cmd->ulpIoTag; + if (iotag && pring->fast_lookup && + (iotag < pring->fast_iotag)) + pring->fast_lookup[iotag] = NULL; + + list_del_init(&iocb->list); + pring->txcmplq_cnt--; + + if (iocb->iocb_cmpl) { + cmd->ulpStatus = IOSTAT_LOCAL_REJECT; + cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; + spin_unlock_irq(phba->host->host_lock); + (iocb->iocb_cmpl) (phba, iocb, iocb); + spin_lock_irq(phba->host->host_lock); + } else { + list_add_tail(&iocb->list, &phba->lpfc_iocb_list); + } + } + + INIT_LIST_HEAD(&pring->txcmplq); + pring->txcmplq_cnt = 0; + spin_unlock_irq(phba->host->host_lock); + + 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) +{ + MAILBOX_t *swpmb; + volatile uint32_t word0; + void __iomem *to_slim; + unsigned long flags = 0; + + spin_lock_irqsave(phba->host->host_lock, flags); + + /* A board reset must use REAL SLIM. */ + phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; + + word0 = 0; + swpmb = (MAILBOX_t *) & word0; + swpmb->mbxCommand = MBX_RESTART; + swpmb->mbxHc = 1; + + to_slim = phba->MBslimaddr; + writel(*(uint32_t *) swpmb, to_slim); + readl(to_slim); /* flush */ + + /* 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 */ + } + 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))); + + writel(HC_INITFF, phba->HCregaddr); + + phba->hba_state = LPFC_INIT_START; + spin_unlock_irqrestore(phba->host->host_lock, flags); + + return 0; +} + +static int +lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post) +{ + struct lpfc_sli_ring *pring; + 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 */ + + /* Restore PCI cmd register */ + pci_write_config_word(phba->pcidev, PCI_COMMAND, phba->pci_cfg_value); + + /* perform board reset */ + phba->fc_eventTag = 0; + phba->fc_myDID = 0; + phba->fc_prevDID = Mask_DID; + + /* 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); + + /* Initialize relevant SLI info */ + for (i = 0; i < phba->sli.num_rings; i++) { + pring = &phba->sli.ring[i]; + pring->flag = 0; + pring->rspidx = 0; + pring->next_cmdidx = 0; + pring->local_getidx = 0; + pring->cmdidx = 0; + pring->missbufcnt = 0; + } + spin_unlock_irqrestore(phba->host->host_lock, flags); + + if (skip_post) { + mdelay(100); + } else { + mdelay(2000); + } + + 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); + + for (i = 0; i < phba->sli.num_rings; i++) + lpfc_sli_abort_iocb_ring(phba, &phba->sli.ring[i]); + + return 0; +} + +static int +lpfc_sli_chipset_init(struct lpfc_hba *phba) +{ + uint32_t status, i = 0; + + /* Read the HBA Host Status Register */ + status = readl(phba->HSregaddr); + + /* Check status register to see what current state is */ + i = 0; + while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { + + /* Check 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. + */ + if (i++ >= 20) { + /* Adapter failed to init, timeout, status reg + <status> */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_INIT, + "%d:0436 Adapter failed to init, " + "timeout, status reg x%x\n", + phba->brd_no, + status); + phba->hba_state = LPFC_HBA_ERROR; + return -ETIMEDOUT; + } + + /* Check to see if any errors occurred during init */ + if (status & HS_FFERM) { + /* ERROR: During chipset initialization */ + /* Adapter failed to init, chipset, status reg + <status> */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_INIT, + "%d:0437 Adapter failed to init, " + "chipset, status reg x%x\n", + phba->brd_no, + status); + phba->hba_state = LPFC_HBA_ERROR; + return -EIO; + } + + if (i <= 5) { + msleep(10); + } else if (i <= 10) { + msleep(500); + } else { + msleep(2500); + } + + if (i == 15) { + lpfc_sli_brdreset(phba, 0); + } + /* Read the HBA Host Status Register */ + status = readl(phba->HSregaddr); + } + + /* Check to see if any errors occurred during init */ + if (status & HS_FFERM) { + /* ERROR: During chipset initialization */ + /* Adapter failed to init, chipset, status reg <status> */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_INIT, + "%d:0438 Adapter failed to init, chipset, " + "status reg x%x\n", + phba->brd_no, + status); + phba->hba_state = LPFC_HBA_ERROR; + return -EIO; + } + + /* Clear all interrupt enable conditions */ + writel(0, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + + /* setup host attn register */ + writel(0xffffffff, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + return 0; +} + +int +lpfc_sli_hba_setup(struct lpfc_hba * phba) +{ + LPFC_MBOXQ_t *pmb; + uint32_t resetcount = 0, rc = 0, done = 0; + + pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + phba->hba_state = LPFC_HBA_ERROR; + return -ENOMEM; + } + + while (resetcount < 2 && !done) { + phba->hba_state = 0; + lpfc_sli_brdreset(phba, 0); + msleep(2500); + rc = lpfc_sli_chipset_init(phba); + if (rc) + break; + + resetcount++; + + /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 + * means the call was successful. Any other nonzero value is a failure, + * but if ERESTART is returned, the driver may reset the HBA and try + * again. + */ + rc = lpfc_config_port_prep(phba); + if (rc == -ERESTART) { + phba->hba_state = 0; + continue; + } else if (rc) { + break; + } + + phba->hba_state = LPFC_INIT_MBX_CMDS; + lpfc_config_port(phba, pmb); + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + if (rc == MBX_SUCCESS) + done = 1; + else { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "%d:0442 Adapter failed to init, mbxCmd x%x " + "CONFIG_PORT, mbxStatus x%x Data: x%x\n", + phba->brd_no, pmb->mb.mbxCommand, + pmb->mb.mbxStatus, 0); + phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; + } + } + if (!done) + goto lpfc_sli_hba_setup_error; + + rc = lpfc_sli_ring_map(phba, pmb); + + if (rc) + goto lpfc_sli_hba_setup_error; + + phba->sli.sli_flag |= LPFC_PROCESS_LA; + + rc = lpfc_config_port_post(phba); + if (rc) + goto lpfc_sli_hba_setup_error; + + goto lpfc_sli_hba_setup_exit; +lpfc_sli_hba_setup_error: + phba->hba_state = LPFC_HBA_ERROR; +lpfc_sli_hba_setup_exit: + mempool_free(pmb, phba->mbox_mem_pool); + return rc; +} + +static void +lpfc_mbox_abort(struct lpfc_hba * phba) +{ + LPFC_MBOXQ_t *pmbox; + MAILBOX_t *mb; + + if (phba->sli.mbox_active) { + del_timer_sync(&phba->sli.mbox_tmo); + phba->work_hba_events &= ~WORKER_MBOX_TMO; + pmbox = phba->sli.mbox_active; + mb = &pmbox->mb; + phba->sli.mbox_active = NULL; + if (pmbox->mbox_cmpl) { + mb->mbxStatus = MBX_NOT_FINISHED; + (pmbox->mbox_cmpl) (phba, pmbox); + } + phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + } + + /* Abort all the non active mailbox commands. */ + spin_lock_irq(phba->host->host_lock); + pmbox = lpfc_mbox_get(phba); + while (pmbox) { + mb = &pmbox->mb; + if (pmbox->mbox_cmpl) { + mb->mbxStatus = MBX_NOT_FINISHED; + spin_unlock_irq(phba->host->host_lock); + (pmbox->mbox_cmpl) (phba, pmbox); + spin_lock_irq(phba->host->host_lock); + } + pmbox = lpfc_mbox_get(phba); + } + spin_unlock_irq(phba->host->host_lock); + return; +} + +/*! lpfc_mbox_timeout + * + * \pre + * \post + * \param hba Pointer to per struct lpfc_hba structure + * \param l1 Pointer to the driver's mailbox queue. + * \return + * void + * + * \b Description: + * + * This routine handles mailbox timeout events at timer interrupt context. + */ +void +lpfc_mbox_timeout(unsigned long ptr) +{ + struct lpfc_hba *phba; + unsigned long iflag; + + phba = (struct lpfc_hba *)ptr; + spin_lock_irqsave(phba->host->host_lock, iflag); + if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { + phba->work_hba_events |= WORKER_MBOX_TMO; + if (phba->work_wait) + wake_up(phba->work_wait); + } + spin_unlock_irqrestore(phba->host->host_lock, iflag); +} + +void +lpfc_mbox_timeout_handler(struct lpfc_hba *phba) +{ + LPFC_MBOXQ_t *pmbox; + MAILBOX_t *mb; + + spin_lock_irq(phba->host->host_lock); + if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { + spin_unlock_irq(phba->host->host_lock); + return; + } + + pmbox = phba->sli.mbox_active; + mb = &pmbox->mb; + + /* Mbox cmd <mbxCommand> timeout */ + lpfc_printf_log(phba, + KERN_ERR, + LOG_MBOX | LOG_SLI, + "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", + phba->brd_no, + mb->mbxCommand, + phba->hba_state, + phba->sli.sli_flag, + phba->sli.mbox_active); + + if (phba->sli.mbox_active == pmbox) { + phba->sli.mbox_active = NULL; + if (pmbox->mbox_cmpl) { + mb->mbxStatus = MBX_NOT_FINISHED; + spin_unlock_irq(phba->host->host_lock); + (pmbox->mbox_cmpl) (phba, pmbox); + spin_lock_irq(phba->host->host_lock); + } + phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + } + + spin_unlock_irq(phba->host->host_lock); + lpfc_mbox_abort(phba); + return; +} + +int +lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) +{ + MAILBOX_t *mbox; + MAILBOX_t *mb; + struct lpfc_sli *psli; + uint32_t status, evtctr; + uint32_t ha_copy; + int i; + unsigned long drvr_flag = 0; + volatile uint32_t word0, ldata; + void __iomem *to_slim; + + psli = &phba->sli; + + spin_lock_irqsave(phba->host->host_lock, drvr_flag); + + + mb = &pmbox->mb; + status = MBX_SUCCESS; + + 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 + * SLI2 mode to queue and process multiple mbox commands. + */ + + if (flag & MBX_POLL) { + spin_unlock_irqrestore(phba->host->host_lock, + drvr_flag); + + /* Mbox command <mbxCommand> cannot issue */ + LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) + return (MBX_NOT_FINISHED); + } + + if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { + spin_unlock_irqrestore(phba->host->host_lock, + drvr_flag); + /* Mbox command <mbxCommand> cannot issue */ + LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) + return (MBX_NOT_FINISHED); + } + + /* Handle STOP IOCB processing flag. This is only meaningful + * if we are not polling for mbox completion. + */ + if (flag & MBX_STOP_IOCB) { + flag &= ~MBX_STOP_IOCB; + /* Now flag each ring */ + for (i = 0; i < psli->num_rings; i++) { + /* If the ring is active, flag it */ + if (psli->ring[i].cmdringaddr) { + psli->ring[i].flag |= + LPFC_STOP_IOCB_MBX; + } + } + } + + /* Another mailbox command is still being processed, queue this + * command to be processed later. + */ + lpfc_mbox_put(phba, pmbox); + + /* Mbox cmd issue - BUSY */ + lpfc_printf_log(phba, + KERN_INFO, + LOG_MBOX | LOG_SLI, + "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n", + phba->brd_no, + mb->mbxCommand, + phba->hba_state, + psli->sli_flag, + flag); + + psli->slistat.mbox_busy++; + spin_unlock_irqrestore(phba->host->host_lock, + drvr_flag); + + return (MBX_BUSY); + } + + /* Handle STOP IOCB processing flag. This is only meaningful + * if we are not polling for mbox completion. + */ + if (flag & MBX_STOP_IOCB) { + flag &= ~MBX_STOP_IOCB; + if (flag == MBX_NOWAIT) { + /* Now flag each ring */ + for (i = 0; i < psli->num_rings; i++) { + /* If the ring is active, flag it */ + if (psli->ring[i].cmdringaddr) { + psli->ring[i].flag |= + LPFC_STOP_IOCB_MBX; + } + } + } + } + + psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; + + /* If we are not polling, we MUST be in SLI2 mode */ + if (flag != MBX_POLL) { + if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { + psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irqrestore(phba->host->host_lock, + drvr_flag); + /* Mbox command <mbxCommand> cannot issue */ + LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag); + return (MBX_NOT_FINISHED); + } + /* timeout active mbox command */ + mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO); + } + + /* Mailbox cmd <cmd> issue */ + lpfc_printf_log(phba, + KERN_INFO, + LOG_MBOX | LOG_SLI, + "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n", + phba->brd_no, + mb->mbxCommand, + phba->hba_state, + psli->sli_flag, + flag); + + psli->slistat.mbox_cmd++; + evtctr = psli->slistat.mbox_event; + + /* next set own bit for the adapter and copy over command word */ + mb->mbxOwner = OWN_CHIP; + + if (psli->sli_flag & LPFC_SLI2_ACTIVE) { + + /* First copy command data to host SLIM area */ + mbox = (MAILBOX_t *) psli->MBhostaddr; + lpfc_sli_pcimem_bcopy(mb, mbox, MAILBOX_CMD_SIZE); + } else { + if (mb->mbxCommand == MBX_CONFIG_PORT) { + /* copy command data into host mbox for cmpl */ + mbox = (MAILBOX_t *) psli->MBhostaddr; + lpfc_sli_pcimem_bcopy(mb, mbox, MAILBOX_CMD_SIZE); + } + + /* First copy mbox command data to HBA SLIM, skip past first + word */ + to_slim = phba->MBslimaddr + sizeof (uint32_t); + lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], + MAILBOX_CMD_SIZE - sizeof (uint32_t)); + + /* Next copy over first word, with mbxOwner set */ + ldata = *((volatile uint32_t *)mb); + to_slim = phba->MBslimaddr; + writel(ldata, to_slim); + readl(to_slim); /* flush */ + + if (mb->mbxCommand == MBX_CONFIG_PORT) { + /* switch over to host mailbox */ + psli->sli_flag |= LPFC_SLI2_ACTIVE; + } + } + + wmb(); + /* interrupt board to doit right away */ + writel(CA_MBATT, phba->CAregaddr); + readl(phba->CAregaddr); /* flush */ + + switch (flag) { + case MBX_NOWAIT: + /* Don't wait for it to finish, just return */ + psli->mbox_active = pmbox; + break; + + case MBX_POLL: + i = 0; + psli->mbox_active = NULL; + if (psli->sli_flag & LPFC_SLI2_ACTIVE) { + /* First read mbox status word */ + mbox = (MAILBOX_t *) psli->MBhostaddr; + word0 = *((volatile uint32_t *)mbox); + word0 = le32_to_cpu(word0); + } else { + /* First read mbox status word */ + word0 = readl(phba->MBslimaddr); + } + + /* Read the HBA Host Attention Register */ + ha_copy = readl(phba->HAregaddr); + + /* Wait for command to complete */ + while (((word0 & OWN_CHIP) == OWN_CHIP) + || !(ha_copy & HA_MBATT)) { + if (i++ >= 100) { + psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + spin_unlock_irqrestore(phba->host->host_lock, + drvr_flag); + return (MBX_NOT_FINISHED); + } + + /* Check if we took a mbox interrupt while we were + polling */ + if (((word0 & OWN_CHIP) != OWN_CHIP) + && (evtctr != psli->slistat.mbox_event)) + break; + + spin_unlock_irqrestore(phba->host->host_lock, + drvr_flag); + + /* Can be in interrupt context, do not sleep */ + /* (or might be called with interrupts disabled) */ + mdelay(i); + + spin_lock_irqsave(phba->host->host_lock, drvr_flag); + + if (psli->sli_flag & LPFC_SLI2_ACTIVE) { + /* First copy command data */ + mbox = (MAILBOX_t *) psli->MBhostaddr; + word0 = *((volatile uint32_t *)mbox); + word0 = le32_to_cpu(word0); + if (mb->mbxCommand == MBX_CONFIG_PORT) { + MAILBOX_t *slimmb; + volatile uint32_t slimword0; + /* Check real SLIM for any errors */ + slimword0 = readl(phba->MBslimaddr); + slimmb = (MAILBOX_t *) & slimword0; + if (((slimword0 & OWN_CHIP) != OWN_CHIP) + && slimmb->mbxStatus) { + psli->sli_flag &= + ~LPFC_SLI2_ACTIVE; + word0 = slimword0; + } + } + } else { + /* First copy command data */ + word0 = readl(phba->MBslimaddr); + } + /* Read the HBA Host Attention Register */ + ha_copy = readl(phba->HAregaddr); + } + + if (psli->sli_flag & LPFC_SLI2_ACTIVE) { + /* First copy command data */ + mbox = (MAILBOX_t *) psli->MBhostaddr; + /* copy results back to user */ + lpfc_sli_pcimem_bcopy(mbox, mb, MAILBOX_CMD_SIZE); + } else { + /* First copy command data */ + lpfc_memcpy_from_slim(mb, phba->MBslimaddr, + MAILBOX_CMD_SIZE); + if ((mb->mbxCommand == MBX_DUMP_MEMORY) && + pmbox->context2) { + lpfc_memcpy_from_slim((void *)pmbox->context2, + phba->MBslimaddr + DMP_RSP_OFFSET, + mb->un.varDmp.word_cnt); + } + } + + writel(HA_MBATT, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + + psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + status = mb->mbxStatus; + } + + spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); + return (status); +} + +static int +lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, + struct lpfc_iocbq * piocb) +{ + /* Insert the caller's iocb in the txq tail for later processing. */ + list_add_tail(&piocb->list, &pring->txq); + pring->txq_cnt++; + return (0); +} + +static struct lpfc_iocbq * +lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + struct lpfc_iocbq ** piocb) +{ + struct lpfc_iocbq * nextiocb; + + nextiocb = lpfc_sli_ringtx_get(phba, pring); + if (!nextiocb) { + nextiocb = *piocb; + *piocb = NULL; + } + + return nextiocb; +} + +int +lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + struct lpfc_iocbq *piocb, uint32_t flag) +{ + struct lpfc_iocbq *nextiocb; + IOCB_t *iocb; + + /* + * We should never get an IOCB if we are in a < LINK_DOWN state + */ + if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) + return IOCB_ERROR; + + /* + * Check to see if we are blocking IOCB processing because of a + * outstanding mbox command. + */ + if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) + goto iocb_busy; + + if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) { + /* + * Only CREATE_XRI, CLOSE_XRI, ABORT_XRI, and QUE_RING_BUF + * can be issued if the link is not up. + */ + switch (piocb->iocb.ulpCommand) { + case CMD_QUE_RING_BUF_CN: + case CMD_QUE_RING_BUF64_CN: + case CMD_CLOSE_XRI_CN: + case CMD_ABORT_XRI_CN: + /* + * For IOCBs, like QUE_RING_BUF, that have no rsp ring + * completion, iocb_cmpl MUST be 0. + */ + if (piocb->iocb_cmpl) + piocb->iocb_cmpl = NULL; + /*FALLTHROUGH*/ + case CMD_CREATE_XRI_CR: + break; + default: + goto iocb_busy; + } + + /* + * For FCP commands, we must be in a state where we can process link + * attention events. + */ + } else if (unlikely(pring->ringno == phba->sli.fcp_ring && + !(phba->sli.sli_flag & LPFC_PROCESS_LA))) + goto iocb_busy; + + /* + * Check to see if this is a high priority command. + * If so bypass tx queue processing. + */ + if (unlikely((flag & SLI_IOCB_HIGH_PRIORITY) && + (iocb = lpfc_sli_next_iocb_slot(phba, pring)))) { + lpfc_sli_submit_iocb(phba, pring, iocb, piocb); + piocb = NULL; + } + + while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && + (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) + lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); + + if (iocb) + lpfc_sli_update_ring(phba, pring); + else + lpfc_sli_update_full_ring(phba, pring); + + if (!piocb) + return IOCB_SUCCESS; + + goto out_busy; + + iocb_busy: + pring->stats.iocb_cmd_delay++; + + out_busy: + + if (!(flag & SLI_IOCB_RET_IOCB)) { + lpfc_sli_ringtx_put(phba, pring, piocb); + return IOCB_SUCCESS; + } + + return IOCB_BUSY; +} + +int +lpfc_sli_setup(struct lpfc_hba *phba) +{ + int i, totiocb = 0; + struct lpfc_sli *psli = &phba->sli; + struct lpfc_sli_ring *pring; + + psli->num_rings = MAX_CONFIGURED_RINGS; + psli->sli_flag = 0; + psli->fcp_ring = LPFC_FCP_RING; + psli->next_ring = LPFC_FCP_NEXT_RING; + psli->ip_ring = LPFC_IP_RING; + + for (i = 0; i < psli->num_rings; i++) { + pring = &psli->ring[i]; + switch (i) { + case LPFC_FCP_RING: /* ring 0 - FCP */ + /* numCiocb and numRiocb are used in config_port */ + pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; + pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; + pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; + pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; + pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; + pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; + pring->iotag_ctr = 0; + pring->iotag_max = + (phba->cfg_hba_queue_depth * 2); + pring->fast_iotag = pring->iotag_max; + pring->num_mask = 0; + break; + case LPFC_IP_RING: /* ring 1 - IP */ + /* numCiocb and numRiocb are used in config_port */ + pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; + pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; + pring->num_mask = 0; + break; + case LPFC_ELS_RING: /* ring 2 - ELS / CT */ + /* numCiocb and numRiocb are used in config_port */ + pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; + pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; + pring->fast_iotag = 0; + pring->iotag_ctr = 0; + pring->iotag_max = 4096; + pring->num_mask = 4; + pring->prt[0].profile = 0; /* Mask 0 */ + pring->prt[0].rctl = FC_ELS_REQ; + pring->prt[0].type = FC_ELS_DATA; + pring->prt[0].lpfc_sli_rcv_unsol_event = + lpfc_els_unsol_event; + pring->prt[1].profile = 0; /* Mask 1 */ + pring->prt[1].rctl = FC_ELS_RSP; + pring->prt[1].type = FC_ELS_DATA; + pring->prt[1].lpfc_sli_rcv_unsol_event = + lpfc_els_unsol_event; + pring->prt[2].profile = 0; /* Mask 2 */ + /* NameServer Inquiry */ + pring->prt[2].rctl = FC_UNSOL_CTL; + /* NameServer */ + pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; + pring->prt[2].lpfc_sli_rcv_unsol_event = + lpfc_ct_unsol_event; + pring->prt[3].profile = 0; /* Mask 3 */ + /* NameServer response */ + pring->prt[3].rctl = FC_SOL_CTL; + /* NameServer */ + pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; + pring->prt[3].lpfc_sli_rcv_unsol_event = + lpfc_ct_unsol_event; + break; + } + totiocb += (pring->numCiocb + pring->numRiocb); + } + if (totiocb > MAX_SLI2_IOCB) { + /* Too many cmd / rsp ring entries in SLI2 SLIM */ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "%d:0462 Too many cmd / rsp ring entries in " + "SLI2 SLIM Data: x%x x%x\n", + phba->brd_no, totiocb, MAX_SLI2_IOCB); + } + + return 0; +} + +int +lpfc_sli_queue_setup(struct lpfc_hba * phba) +{ + struct lpfc_sli *psli; + struct lpfc_sli_ring *pring; + int i, cnt; + + psli = &phba->sli; + spin_lock_irq(phba->host->host_lock); + INIT_LIST_HEAD(&psli->mboxq); + /* Initialize list headers for txq and txcmplq as double linked lists */ + for (i = 0; i < psli->num_rings; i++) { + pring = &psli->ring[i]; + pring->ringno = i; + pring->next_cmdidx = 0; + pring->local_getidx = 0; + pring->cmdidx = 0; + INIT_LIST_HEAD(&pring->txq); + INIT_LIST_HEAD(&pring->txcmplq); + INIT_LIST_HEAD(&pring->iocb_continueq); + INIT_LIST_HEAD(&pring->postbufq); + cnt = pring->fast_iotag; + spin_unlock_irq(phba->host->host_lock); + if (cnt) { + pring->fast_lookup = + kmalloc(cnt * sizeof (struct lpfc_iocbq *), + GFP_KERNEL); + if (pring->fast_lookup == 0) { + return (0); + } + memset((char *)pring->fast_lookup, 0, + cnt * sizeof (struct lpfc_iocbq *)); + } + spin_lock_irq(phba->host->host_lock); + } + spin_unlock_irq(phba->host->host_lock); + return (1); +} + +int +lpfc_sli_hba_down(struct lpfc_hba * phba) +{ + struct lpfc_sli *psli; + struct lpfc_sli_ring *pring; + LPFC_MBOXQ_t *pmb; + struct lpfc_iocbq *iocb, *next_iocb; + IOCB_t *icmd = NULL; + int i; + unsigned long flags = 0; + + psli = &phba->sli; + lpfc_hba_down_prep(phba); + + spin_lock_irqsave(phba->host->host_lock, flags); + + for (i = 0; i < psli->num_rings; i++) { + pring = &psli->ring[i]; + pring->flag |= LPFC_DEFERRED_RING_EVENT; + + /* + * Error everything on the txq since these iocbs have not been + * given to the FW yet. + */ + pring->txq_cnt = 0; + + list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { + list_del_init(&iocb->list); + if (iocb->iocb_cmpl) { + icmd = &iocb->iocb; + icmd->ulpStatus = IOSTAT_LOCAL_REJECT; + icmd->un.ulpWord[4] = IOERR_SLI_DOWN; + spin_unlock_irqrestore(phba->host->host_lock, + flags); + (iocb->iocb_cmpl) (phba, iocb, iocb); + spin_lock_irqsave(phba->host->host_lock, flags); + } else { + list_add_tail(&iocb->list, + &phba->lpfc_iocb_list); + } + } + + INIT_LIST_HEAD(&(pring->txq)); + + if (pring->fast_lookup) { + kfree(pring->fast_lookup); + pring->fast_lookup = NULL; + } + + } + + spin_unlock_irqrestore(phba->host->host_lock, flags); + + /* Return any active mbox cmds */ + del_timer_sync(&psli->mbox_tmo); + spin_lock_irqsave(phba->host->host_lock, flags); + phba->work_hba_events &= ~WORKER_MBOX_TMO; + if (psli->mbox_active) { + pmb = psli->mbox_active; + pmb->mb.mbxStatus = MBX_NOT_FINISHED; + if (pmb->mbox_cmpl) { + spin_unlock_irqrestore(phba->host->host_lock, flags); + pmb->mbox_cmpl(phba,pmb); + spin_lock_irqsave(phba->host->host_lock, flags); + } + } + psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + psli->mbox_active = NULL; + + /* Return any pending mbox cmds */ + while ((pmb = lpfc_mbox_get(phba)) != NULL) { + pmb->mb.mbxStatus = MBX_NOT_FINISHED; + if (pmb->mbox_cmpl) { + spin_unlock_irqrestore(phba->host->host_lock, flags); + pmb->mbox_cmpl(phba,pmb); + spin_lock_irqsave(phba->host->host_lock, flags); + } + } + + INIT_LIST_HEAD(&psli->mboxq); + + 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; +} + +void +lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) +{ + uint32_t *src = srcp; + uint32_t *dest = destp; + uint32_t ldata; + int i; + + for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { + ldata = *src; + ldata = le32_to_cpu(ldata); + *dest = ldata; + src++; + dest++; + } +} + +int +lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, + struct lpfc_dmabuf * mp) +{ + /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up + later */ + list_add_tail(&mp->list, &pring->postbufq); + + pring->postbufq_cnt++; + return 0; +} + + +struct lpfc_dmabuf * +lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + dma_addr_t phys) +{ + struct lpfc_dmabuf *mp, *next_mp; + struct list_head *slp = &pring->postbufq; + + /* Search postbufq, from the begining, looking for a match on phys */ + list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { + if (mp->phys == phys) { + list_del_init(&mp->list); + pring->postbufq_cnt--; + return mp; + } + } + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "%d:0410 Cannot find virtual addr for mapped buf on " + "ring %d Data x%llx x%p x%p x%x\n", + phba->brd_no, pring->ringno, (unsigned long long)phys, + slp->next, slp->prev, pring->postbufq_cnt); + return NULL; +} + +static void +lpfc_sli_abort_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, + struct lpfc_iocbq * rspiocb) +{ + struct lpfc_dmabuf *buf_ptr, *buf_ptr1; + /* Free the resources associated with the ELS_REQUEST64 IOCB the driver + * just aborted. + * In this case, context2 = cmd, context2->next = rsp, context3 = bpl + */ + if (cmdiocb->context2) { + buf_ptr1 = (struct lpfc_dmabuf *) cmdiocb->context2; + + /* Free the response IOCB before completing the abort + command. */ + buf_ptr = NULL; + list_remove_head((&buf_ptr1->list), buf_ptr, + struct lpfc_dmabuf, list); + if (buf_ptr) { + lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); + kfree(buf_ptr); + } + lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); + kfree(buf_ptr1); + } + + if (cmdiocb->context3) { + buf_ptr = (struct lpfc_dmabuf *) cmdiocb->context3; + lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); + kfree(buf_ptr); + } + + list_add_tail(&cmdiocb->list, &phba->lpfc_iocb_list); + return; +} + +int +lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba, + struct lpfc_sli_ring * pring, + struct lpfc_iocbq * cmdiocb) +{ + struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; + struct lpfc_iocbq *abtsiocbp = NULL; + IOCB_t *icmd = NULL; + IOCB_t *iabt = NULL; + + /* issue ABTS for this IOCB based on iotag */ + list_remove_head(lpfc_iocb_list, abtsiocbp, struct lpfc_iocbq, list); + if (abtsiocbp == NULL) + return 0; + memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq)); + + iabt = &abtsiocbp->iocb; + icmd = &cmdiocb->iocb; + switch (icmd->ulpCommand) { + case CMD_ELS_REQUEST64_CR: + /* Even though we abort the ELS command, the firmware may access + * the BPL or other resources before it processes our + * ABORT_MXRI64. Thus we must delay reusing the cmdiocb + * resources till the actual abort request completes. + */ + abtsiocbp->context1 = (void *)((unsigned long)icmd->ulpCommand); + abtsiocbp->context2 = cmdiocb->context2; + abtsiocbp->context3 = cmdiocb->context3; + cmdiocb->context2 = NULL; + cmdiocb->context3 = NULL; + abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl; + break; + default: + list_add_tail(&abtsiocbp->list, lpfc_iocb_list); + return 0; + } + + iabt->un.amxri.abortType = ABORT_TYPE_ABTS; + iabt->un.amxri.iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32; + + iabt->ulpLe = 1; + iabt->ulpClass = CLASS3; + iabt->ulpCommand = CMD_ABORT_MXRI64_CN; + + if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) { + list_add_tail(&abtsiocbp->list, lpfc_iocb_list); + return 0; + } + + return 1; +} + +static int +lpfc_sli_validate_iocb_cmd(struct lpfc_scsi_buf *lpfc_cmd, uint16_t tgt_id, + uint64_t lun_id, struct lpfc_iocbq *iocb, + uint32_t ctx, lpfc_ctx_cmd ctx_cmd) +{ + int rc = 1; + + if (lpfc_cmd == NULL) + return rc; + + switch (ctx_cmd) { + case LPFC_CTX_LUN: + if ((lpfc_cmd->pCmd->device->id == tgt_id) && + (lpfc_cmd->pCmd->device->lun == lun_id)) + rc = 0; + break; + case LPFC_CTX_TGT: + if (lpfc_cmd->pCmd->device->id == tgt_id) + rc = 0; + break; + case LPFC_CTX_CTX: + if (iocb->iocb.ulpContext == ctx) + rc = 0; + case LPFC_CTX_HOST: + rc = 0; + break; + default: + printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", + __FUNCTION__, ctx_cmd); + break; + } + + return rc; +} + +int +lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) +{ + struct lpfc_iocbq *iocb, *next_iocb; + IOCB_t *cmd = NULL; + struct lpfc_scsi_buf *lpfc_cmd; + int sum = 0, ret_val = 0; + + /* Next check the txcmplq */ + list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { + cmd = &iocb->iocb; + + /* Must be a FCP command */ + if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) && + (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) && + (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) { + continue; + } + + /* context1 MUST be a struct lpfc_scsi_buf */ + lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1); + ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id, + NULL, 0, ctx_cmd); + if (ret_val != 0) + continue; + sum++; + } + return sum; +} + +int +lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + uint16_t tgt_id, uint64_t lun_id, uint32_t ctx, + lpfc_ctx_cmd abort_cmd) +{ + struct lpfc_iocbq *iocb, *next_iocb; + struct lpfc_iocbq *abtsiocb = NULL; + struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; + IOCB_t *cmd = NULL; + struct lpfc_scsi_buf *lpfc_cmd; + int errcnt = 0, ret_val = 0; + + list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { + cmd = &iocb->iocb; + + /* Must be a FCP command */ + if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) && + (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) && + (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) { + continue; + } + + /* context1 MUST be a struct lpfc_scsi_buf */ + lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1); + ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id, + iocb, ctx, abort_cmd); + if (ret_val != 0) + continue; + + /* issue ABTS for this IOCB based on iotag */ + list_remove_head(lpfc_iocb_list, abtsiocb, struct lpfc_iocbq, + list); + if (abtsiocb == NULL) { + errcnt++; + continue; + } + memset(abtsiocb, 0, sizeof (struct lpfc_iocbq)); + + abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; + abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; + abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; + abtsiocb->iocb.ulpLe = 1; + abtsiocb->iocb.ulpClass = cmd->ulpClass; + + if (phba->hba_state >= LPFC_LINK_UP) + abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; + else + abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; + + ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); + if (ret_val == IOCB_ERROR) { + list_add_tail(&abtsiocb->list, lpfc_iocb_list); + errcnt++; + continue; + } + } + + return errcnt; +} + +void +lpfc_sli_wake_iocb_high_priority(struct lpfc_hba * phba, + struct lpfc_iocbq * queue1, + struct lpfc_iocbq * queue2) +{ + if (queue1->context2 && queue2) + memcpy(queue1->context2, queue2, sizeof (struct lpfc_iocbq)); + + /* The waiter is looking for LPFC_IO_HIPRI bit to be set + as a signal to wake up */ + queue1->iocb_flag |= LPFC_IO_HIPRI; + return; +} + +int +lpfc_sli_issue_iocb_wait_high_priority(struct lpfc_hba * phba, + struct lpfc_sli_ring * pring, + struct lpfc_iocbq * piocb, + uint32_t flag, + struct lpfc_iocbq * prspiocbq, + uint32_t timeout) +{ + int j, delay_time, retval = IOCB_ERROR; + + /* The caller must left context1 empty. */ + if (piocb->context_un.hipri_wait_queue != 0) { + return IOCB_ERROR; + } + + /* + * If the caller has provided a response iocbq buffer, context2 must + * be NULL or its an error. + */ + if (prspiocbq && piocb->context2) { + return IOCB_ERROR; + } + + piocb->context2 = prspiocbq; + + /* Setup callback routine and issue the command. */ + piocb->iocb_cmpl = lpfc_sli_wake_iocb_high_priority; + retval = lpfc_sli_issue_iocb(phba, pring, piocb, + flag | SLI_IOCB_HIGH_PRIORITY); + if (retval != IOCB_SUCCESS) { + piocb->context2 = NULL; + return IOCB_ERROR; + } + + /* + * This high-priority iocb was sent out-of-band. Poll for its + * completion rather than wait for a signal. Note that the host_lock + * is held by the midlayer and must be released here to allow the + * interrupt handlers to complete the IO and signal this routine via + * the iocb_flag. + * Also, the delay_time is computed to be one second longer than + * the scsi command timeout to give the FW time to abort on + * timeout rather than the driver just giving up. Typically, + * the midlayer does not specify a time for this command so the + * driver is free to enforce its own timeout. + */ + + delay_time = ((timeout + 1) * 1000) >> 6; + retval = IOCB_ERROR; + spin_unlock_irq(phba->host->host_lock); + for (j = 0; j < 64; j++) { + msleep(delay_time); + if (piocb->iocb_flag & LPFC_IO_HIPRI) { + piocb->iocb_flag &= ~LPFC_IO_HIPRI; + retval = IOCB_SUCCESS; + break; + } + } + + spin_lock_irq(phba->host->host_lock); + piocb->context2 = NULL; + return retval; +} +int +lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq, + uint32_t timeout) +{ + DECLARE_WAIT_QUEUE_HEAD(done_q); + DECLARE_WAITQUEUE(wq_entry, current); + uint32_t timeleft = 0; + int retval; + + /* The caller must leave context1 empty. */ + if (pmboxq->context1 != 0) { + return (MBX_NOT_FINISHED); + } + + /* setup wake call as IOCB callback */ + pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; + /* setup context field to pass wait_queue pointer to wake function */ + pmboxq->context1 = &done_q; + + /* start to sleep before we wait, to avoid races */ + set_current_state(TASK_INTERRUPTIBLE); + add_wait_queue(&done_q, &wq_entry); + + /* now issue the command */ + retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); + + if (retval == MBX_BUSY || retval == MBX_SUCCESS) { + timeleft = schedule_timeout(timeout * HZ); + pmboxq->context1 = NULL; + /* if schedule_timeout returns 0, we timed out and were not + woken up */ + if (timeleft == 0) { + retval = MBX_TIMEOUT; + } else { + retval = MBX_SUCCESS; + } + } + + + set_current_state(TASK_RUNNING); + remove_wait_queue(&done_q, &wq_entry); + return retval; +} + +irqreturn_t +lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs) +{ + struct lpfc_hba *phba; + uint32_t ha_copy; + uint32_t work_ha_copy; + unsigned long status; + int i; + uint32_t control; + + /* + * Get the driver's phba structure from the dev_id and + * assume the HBA is not interrupting. + */ + phba = (struct lpfc_hba *) dev_id; + + if (unlikely(!phba)) + return IRQ_NONE; + + phba->sli.slistat.sli_intr++; + + /* + * Call the HBA to see if it is interrupting. If not, don't claim + * the interrupt + */ + + /* Ignore all interrupts during initialization. */ + if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) + return IRQ_NONE; + + /* + * Read host attention register to determine interrupt source + * Clear Attention Sources, except Error Attention (to + * preserve status) and Link Attention + */ + spin_lock(phba->host->host_lock); + ha_copy = readl(phba->HAregaddr); + writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + spin_unlock(phba->host->host_lock); + + if (unlikely(!ha_copy)) + return IRQ_NONE; + + work_ha_copy = ha_copy & phba->work_ha_mask; + + if (unlikely(work_ha_copy)) { + if (work_ha_copy & HA_LATT) { + if (phba->sli.sli_flag & LPFC_PROCESS_LA) { + /* + * Turn off Link Attention interrupts + * until CLEAR_LA done + */ + spin_lock(phba->host->host_lock); + phba->sli.sli_flag &= ~LPFC_PROCESS_LA; + control = readl(phba->HCregaddr); + control &= ~HC_LAINT_ENA; + writel(control, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + spin_unlock(phba->host->host_lock); + } + else + work_ha_copy &= ~HA_LATT; + } + + if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { + for (i = 0; i < phba->sli.num_rings; i++) { + if (work_ha_copy & (HA_RXATT << (4*i))) { + /* + * Turn off Slow Rings interrupts + */ + spin_lock(phba->host->host_lock); + control = readl(phba->HCregaddr); + control &= ~(HC_R0INT_ENA << i); + writel(control, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + spin_unlock(phba->host->host_lock); + } + } + } + + if (work_ha_copy & HA_ERATT) { + phba->hba_state = LPFC_HBA_ERROR; + /* + * There was a link/board error. Read the + * status register to retrieve the error event + * and process it. + */ + phba->sli.slistat.err_attn_event++; + /* Save status info */ + phba->work_hs = readl(phba->HSregaddr); + phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); + phba->work_status[1] = readl(phba->MBslimaddr + 0xac); + + /* 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, phba->hba_state); + } + + spin_lock(phba->host->host_lock); + phba->work_ha |= work_ha_copy; + if (phba->work_wait) + wake_up(phba->work_wait); + spin_unlock(phba->host->host_lock); + } + + ha_copy &= ~(phba->work_ha_mask); + + /* + * Process all events on FCP ring. Take the optimized path for + * FCP IO. Any other IO is slow path and is handled by + * the worker thread. + */ + status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); + status >>= (4*LPFC_FCP_RING); + if (status & HA_RXATT) + lpfc_sli_handle_fast_ring_event(phba, + &phba->sli.ring[LPFC_FCP_RING], + status); + return IRQ_HANDLED; + +} /* lpfc_intr_handler */ |