diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 6811 |
1 files changed, 6354 insertions, 457 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index eb5c75c45ba..acc43b061ba 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) 2004-2008 Emulex. All rights reserved. * + * Copyright (C) 2004-2009 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -29,9 +29,12 @@ #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport_fc.h> +#include <scsi/fc/fc_fs.h> +#include "lpfc_hw4.h" #include "lpfc_hw.h" #include "lpfc_sli.h" +#include "lpfc_sli4.h" #include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" @@ -40,24 +43,7 @@ #include "lpfc_logmsg.h" #include "lpfc_compat.h" #include "lpfc_debugfs.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, pmbox, 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", \ - pmbox->vport ? pmbox->vport->vpi : 0, \ - pmbox->mb.mbxCommand, \ - phba->pport->port_state, \ - psli->sli_flag, \ - flag) - +#include "lpfc_vport.h" /* There are only four IOCB completion types. */ typedef enum _lpfc_iocb_type { @@ -67,6 +53,350 @@ typedef enum _lpfc_iocb_type { LPFC_ABORT_IOCB } lpfc_iocb_type; + +/* Provide function prototypes local to this module. */ +static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *, + uint32_t); +static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *, + uint8_t *, uint32_t *); + +static IOCB_t * +lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq) +{ + return &iocbq->iocb; +} + +/** + * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue + * @q: The Work Queue to operate on. + * @wqe: The work Queue Entry to put on the Work queue. + * + * This routine will copy the contents of @wqe to the next available entry on + * the @q. This function will then ring the Work Queue Doorbell to signal the + * HBA to start processing the Work Queue Entry. This function returns 0 if + * successful. If no entries are available on @q then this function will return + * -ENOMEM. + * The caller is expected to hold the hbalock when calling this routine. + **/ +static uint32_t +lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe) +{ + union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe; + struct lpfc_register doorbell; + uint32_t host_index; + + /* If the host has not yet processed the next entry then we are done */ + if (((q->host_index + 1) % q->entry_count) == q->hba_index) + return -ENOMEM; + /* set consumption flag every once in a while */ + if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL)) + bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1); + + lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size); + + /* Update the host index before invoking device */ + host_index = q->host_index; + q->host_index = ((q->host_index + 1) % q->entry_count); + + /* Ring Doorbell */ + doorbell.word0 = 0; + bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1); + bf_set(lpfc_wq_doorbell_index, &doorbell, host_index); + bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id); + writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr); + readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */ + + return 0; +} + +/** + * lpfc_sli4_wq_release - Updates internal hba index for WQ + * @q: The Work Queue to operate on. + * @index: The index to advance the hba index to. + * + * This routine will update the HBA index of a queue to reflect consumption of + * Work Queue Entries by the HBA. When the HBA indicates that it has consumed + * an entry the host calls this function to update the queue's internal + * pointers. This routine returns the number of entries that were consumed by + * the HBA. + **/ +static uint32_t +lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index) +{ + uint32_t released = 0; + + if (q->hba_index == index) + return 0; + do { + q->hba_index = ((q->hba_index + 1) % q->entry_count); + released++; + } while (q->hba_index != index); + return released; +} + +/** + * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue + * @q: The Mailbox Queue to operate on. + * @wqe: The Mailbox Queue Entry to put on the Work queue. + * + * This routine will copy the contents of @mqe to the next available entry on + * the @q. This function will then ring the Work Queue Doorbell to signal the + * HBA to start processing the Work Queue Entry. This function returns 0 if + * successful. If no entries are available on @q then this function will return + * -ENOMEM. + * The caller is expected to hold the hbalock when calling this routine. + **/ +static uint32_t +lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe) +{ + struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe; + struct lpfc_register doorbell; + uint32_t host_index; + + /* If the host has not yet processed the next entry then we are done */ + if (((q->host_index + 1) % q->entry_count) == q->hba_index) + return -ENOMEM; + lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size); + /* Save off the mailbox pointer for completion */ + q->phba->mbox = (MAILBOX_t *)temp_mqe; + + /* Update the host index before invoking device */ + host_index = q->host_index; + q->host_index = ((q->host_index + 1) % q->entry_count); + + /* Ring Doorbell */ + doorbell.word0 = 0; + bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1); + bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id); + writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr); + readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */ + return 0; +} + +/** + * lpfc_sli4_mq_release - Updates internal hba index for MQ + * @q: The Mailbox Queue to operate on. + * + * This routine will update the HBA index of a queue to reflect consumption of + * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed + * an entry the host calls this function to update the queue's internal + * pointers. This routine returns the number of entries that were consumed by + * the HBA. + **/ +static uint32_t +lpfc_sli4_mq_release(struct lpfc_queue *q) +{ + /* Clear the mailbox pointer for completion */ + q->phba->mbox = NULL; + q->hba_index = ((q->hba_index + 1) % q->entry_count); + return 1; +} + +/** + * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ + * @q: The Event Queue to get the first valid EQE from + * + * This routine will get the first valid Event Queue Entry from @q, update + * the queue's internal hba index, and return the EQE. If no valid EQEs are in + * the Queue (no more work to do), or the Queue is full of EQEs that have been + * processed, but not popped back to the HBA then this routine will return NULL. + **/ +static struct lpfc_eqe * +lpfc_sli4_eq_get(struct lpfc_queue *q) +{ + struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe; + + /* If the next EQE is not valid then we are done */ + if (!bf_get(lpfc_eqe_valid, eqe)) + return NULL; + /* If the host has not yet processed the next entry then we are done */ + if (((q->hba_index + 1) % q->entry_count) == q->host_index) + return NULL; + + q->hba_index = ((q->hba_index + 1) % q->entry_count); + return eqe; +} + +/** + * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ + * @q: The Event Queue that the host has completed processing for. + * @arm: Indicates whether the host wants to arms this CQ. + * + * This routine will mark all Event Queue Entries on @q, from the last + * known completed entry to the last entry that was processed, as completed + * by clearing the valid bit for each completion queue entry. Then it will + * notify the HBA, by ringing the doorbell, that the EQEs have been processed. + * The internal host index in the @q will be updated by this routine to indicate + * that the host has finished processing the entries. The @arm parameter + * indicates that the queue should be rearmed when ringing the doorbell. + * + * This function will return the number of EQEs that were popped. + **/ +uint32_t +lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm) +{ + uint32_t released = 0; + struct lpfc_eqe *temp_eqe; + struct lpfc_register doorbell; + + /* while there are valid entries */ + while (q->hba_index != q->host_index) { + temp_eqe = q->qe[q->host_index].eqe; + bf_set(lpfc_eqe_valid, temp_eqe, 0); + released++; + q->host_index = ((q->host_index + 1) % q->entry_count); + } + if (unlikely(released == 0 && !arm)) + return 0; + + /* ring doorbell for number popped */ + doorbell.word0 = 0; + if (arm) { + bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); + bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1); + } + bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); + bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT); + bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id); + writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); + return released; +} + +/** + * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ + * @q: The Completion Queue to get the first valid CQE from + * + * This routine will get the first valid Completion Queue Entry from @q, update + * the queue's internal hba index, and return the CQE. If no valid CQEs are in + * the Queue (no more work to do), or the Queue is full of CQEs that have been + * processed, but not popped back to the HBA then this routine will return NULL. + **/ +static struct lpfc_cqe * +lpfc_sli4_cq_get(struct lpfc_queue *q) +{ + struct lpfc_cqe *cqe; + + /* If the next CQE is not valid then we are done */ + if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe)) + return NULL; + /* If the host has not yet processed the next entry then we are done */ + if (((q->hba_index + 1) % q->entry_count) == q->host_index) + return NULL; + + cqe = q->qe[q->hba_index].cqe; + q->hba_index = ((q->hba_index + 1) % q->entry_count); + return cqe; +} + +/** + * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ + * @q: The Completion Queue that the host has completed processing for. + * @arm: Indicates whether the host wants to arms this CQ. + * + * This routine will mark all Completion queue entries on @q, from the last + * known completed entry to the last entry that was processed, as completed + * by clearing the valid bit for each completion queue entry. Then it will + * notify the HBA, by ringing the doorbell, that the CQEs have been processed. + * The internal host index in the @q will be updated by this routine to indicate + * that the host has finished processing the entries. The @arm parameter + * indicates that the queue should be rearmed when ringing the doorbell. + * + * This function will return the number of CQEs that were released. + **/ +uint32_t +lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm) +{ + uint32_t released = 0; + struct lpfc_cqe *temp_qe; + struct lpfc_register doorbell; + + /* while there are valid entries */ + while (q->hba_index != q->host_index) { + temp_qe = q->qe[q->host_index].cqe; + bf_set(lpfc_cqe_valid, temp_qe, 0); + released++; + q->host_index = ((q->host_index + 1) % q->entry_count); + } + if (unlikely(released == 0 && !arm)) + return 0; + + /* ring doorbell for number popped */ + doorbell.word0 = 0; + if (arm) + bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); + bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); + bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION); + bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id); + writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); + return released; +} + +/** + * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue + * @q: The Header Receive Queue to operate on. + * @wqe: The Receive Queue Entry to put on the Receive queue. + * + * This routine will copy the contents of @wqe to the next available entry on + * the @q. This function will then ring the Receive Queue Doorbell to signal the + * HBA to start processing the Receive Queue Entry. This function returns the + * index that the rqe was copied to if successful. If no entries are available + * on @q then this function will return -ENOMEM. + * The caller is expected to hold the hbalock when calling this routine. + **/ +static int +lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq, + struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe) +{ + struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe; + struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe; + struct lpfc_register doorbell; + int put_index = hq->host_index; + + if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ) + return -EINVAL; + if (hq->host_index != dq->host_index) + return -EINVAL; + /* If the host has not yet processed the next entry then we are done */ + if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index) + return -EBUSY; + lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); + lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); + + /* Update the host index to point to the next slot */ + hq->host_index = ((hq->host_index + 1) % hq->entry_count); + dq->host_index = ((dq->host_index + 1) % dq->entry_count); + + /* Ring The Header Receive Queue Doorbell */ + if (!(hq->host_index % LPFC_RQ_POST_BATCH)) { + doorbell.word0 = 0; + bf_set(lpfc_rq_doorbell_num_posted, &doorbell, + LPFC_RQ_POST_BATCH); + bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id); + writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr); + } + return put_index; +} + +/** + * lpfc_sli4_rq_release - Updates internal hba index for RQ + * @q: The Header Receive Queue to operate on. + * + * This routine will update the HBA index of a queue to reflect consumption of + * one Receive Queue Entry by the HBA. When the HBA indicates that it has + * consumed an entry the host calls this function to update the queue's + * internal pointers. This routine returns the number of entries that were + * consumed by the HBA. + **/ +static uint32_t +lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq) +{ + if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ)) + return 0; + hq->hba_index = ((hq->hba_index + 1) % hq->entry_count); + dq->hba_index = ((dq->hba_index + 1) % dq->entry_count); + return 1; +} + /** * lpfc_cmd_iocb - Get next command iocb entry in the ring * @phba: Pointer to HBA context object. @@ -121,6 +451,76 @@ __lpfc_sli_get_iocbq(struct lpfc_hba *phba) } /** + * __lpfc_clear_active_sglq - Remove the active sglq for this XRI. + * @phba: Pointer to HBA context object. + * @xritag: XRI value. + * + * This function clears the sglq pointer from the array of acive + * sglq's. The xritag that is passed in is used to index into the + * array. Before the xritag can be used it needs to be adjusted + * by subtracting the xribase. + * + * Returns sglq ponter = success, NULL = Failure. + **/ +static struct lpfc_sglq * +__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag) +{ + uint16_t adj_xri; + struct lpfc_sglq *sglq; + adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; + if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) + return NULL; + sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; + phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL; + return sglq; +} + +/** + * __lpfc_get_active_sglq - Get the active sglq for this XRI. + * @phba: Pointer to HBA context object. + * @xritag: XRI value. + * + * This function returns the sglq pointer from the array of acive + * sglq's. The xritag that is passed in is used to index into the + * array. Before the xritag can be used it needs to be adjusted + * by subtracting the xribase. + * + * Returns sglq ponter = success, NULL = Failure. + **/ +static struct lpfc_sglq * +__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag) +{ + uint16_t adj_xri; + struct lpfc_sglq *sglq; + adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; + if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) + return NULL; + sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; + return sglq; +} + +/** + * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool + * @phba: Pointer to HBA context object. + * + * This function is called with hbalock held. This function + * Gets a new driver sglq object from the sglq list. If the + * list is not empty then it is successful, it returns pointer to the newly + * allocated sglq object else it returns NULL. + **/ +static struct lpfc_sglq * +__lpfc_sli_get_sglq(struct lpfc_hba *phba) +{ + struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list; + struct lpfc_sglq *sglq = NULL; + uint16_t adj_xri; + list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list); + adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base; + phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq; + return sglq; +} + +/** * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool * @phba: Pointer to HBA context object. * @@ -142,7 +542,7 @@ lpfc_sli_get_iocbq(struct lpfc_hba *phba) } /** - * __lpfc_sli_release_iocbq - Release iocb to the iocb pool + * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool * @phba: Pointer to HBA context object. * @iocbq: Pointer to driver iocb object. * @@ -150,9 +550,62 @@ lpfc_sli_get_iocbq(struct lpfc_hba *phba) * iocb object to the iocb pool. The iotag in the iocb object * does not change for each use of the iocb object. This function * clears all other fields of the iocb object when it is freed. + * The sqlq structure that holds the xritag and phys and virtual + * mappings for the scatter gather list is retrieved from the + * active array of sglq. The get of the sglq pointer also clears + * the entry in the array. If the status of the IO indiactes that + * this IO was aborted then the sglq entry it put on the + * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the + * IO has good status or fails for any other reason then the sglq + * entry is added to the free list (lpfc_sgl_list). **/ static void -__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) +__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) +{ + struct lpfc_sglq *sglq; + size_t start_clean = offsetof(struct lpfc_iocbq, iocb); + unsigned long iflag; + + if (iocbq->sli4_xritag == NO_XRI) + sglq = NULL; + else + sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag); + if (sglq) { + if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED + || ((iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT) + && (iocbq->iocb.un.ulpWord[4] + == IOERR_SLI_ABORTED))) { + spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, + iflag); + list_add(&sglq->list, + &phba->sli4_hba.lpfc_abts_els_sgl_list); + spin_unlock_irqrestore( + &phba->sli4_hba.abts_sgl_list_lock, iflag); + } else + list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list); + } + + + /* + * Clean all volatile data fields, preserve iotag and node struct. + */ + memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); + iocbq->sli4_xritag = NO_XRI; + list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); +} + +/** + * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool + * @phba: Pointer to HBA context object. + * @iocbq: Pointer to driver iocb object. + * + * This function is called with hbalock held to release driver + * iocb object to the iocb pool. The iotag in the iocb object + * does not change for each use of the iocb object. This function + * clears all other fields of the iocb object when it is freed. + **/ +static void +__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) { size_t start_clean = offsetof(struct lpfc_iocbq, iocb); @@ -160,10 +613,27 @@ __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) * Clean all volatile data fields, preserve iotag and node struct. */ memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); + iocbq->sli4_xritag = NO_XRI; list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); } /** + * __lpfc_sli_release_iocbq - Release iocb to the iocb pool + * @phba: Pointer to HBA context object. + * @iocbq: Pointer to driver iocb object. + * + * This function is called with hbalock held to release driver + * iocb object to the iocb pool. The iotag in the iocb object + * does not change for each use of the iocb object. This function + * clears all other fields of the iocb object when it is freed. + **/ +static void +__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) +{ + phba->__lpfc_sli_release_iocbq(phba, iocbq); +} + +/** * lpfc_sli_release_iocbq - Release iocb to the iocb pool * @phba: Pointer to HBA context object. * @iocbq: Pointer to driver iocb object. @@ -281,6 +751,14 @@ lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) case CMD_GEN_REQUEST64_CR: case CMD_GEN_REQUEST64_CX: case CMD_XMIT_ELS_RSP64_CX: + case DSSCMD_IWRITE64_CR: + case DSSCMD_IWRITE64_CX: + case DSSCMD_IREAD64_CR: + case DSSCMD_IREAD64_CX: + case DSSCMD_INVALIDATE_DEK: + case DSSCMD_SET_KEK: + case DSSCMD_GET_KEK_ID: + case DSSCMD_GEN_XFER: type = LPFC_SOL_IOCB; break; case CMD_ABORT_XRI_CN: @@ -348,7 +826,7 @@ lpfc_sli_ring_map(struct lpfc_hba *phba) pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) return -ENOMEM; - pmbox = &pmb->mb; + pmbox = &pmb->u.mb; phba->link_state = LPFC_INIT_MBX_CMDS; for (i = 0; i < psli->num_rings; i++) { lpfc_config_ring(phba, i, pmb); @@ -779,8 +1257,8 @@ lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) phba->hbqs[i].buffer_count = 0; } /* Return all HBQ buffer that are in-fly */ - list_for_each_entry_safe(dmabuf, next_dmabuf, - &phba->hbqbuf_in_list, list) { + list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list, + list) { hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); list_del(&hbq_buf->dbuf.list); if (hbq_buf->tag == -1) { @@ -814,10 +1292,28 @@ lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) * pointer to the hbq entry if it successfully post the buffer * else it will return NULL. **/ -static struct lpfc_hbq_entry * +static int lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, struct hbq_dmabuf *hbq_buf) { + return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf); +} + +/** + * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware + * @phba: Pointer to HBA context object. + * @hbqno: HBQ number. + * @hbq_buf: Pointer to HBQ buffer. + * + * This function is called with the hbalock held to post a hbq buffer to the + * firmware. If the function finds an empty slot in the HBQ, it will post the + * buffer and place it on the hbq_buffer_list. The function will return zero if + * it successfully post the buffer else it will return an error. + **/ +static int +lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno, + struct hbq_dmabuf *hbq_buf) +{ struct lpfc_hbq_entry *hbqe; dma_addr_t physaddr = hbq_buf->dbuf.phys; @@ -838,8 +1334,40 @@ lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, /* flush */ readl(phba->hbq_put + hbqno); list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); - } - return hbqe; + return 0; + } else + return -ENOMEM; +} + +/** + * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware + * @phba: Pointer to HBA context object. + * @hbqno: HBQ number. + * @hbq_buf: Pointer to HBQ buffer. + * + * This function is called with the hbalock held to post an RQE to the SLI4 + * firmware. If able to post the RQE to the RQ it will queue the hbq entry to + * the hbq_buffer_list and return zero, otherwise it will return an error. + **/ +static int +lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno, + struct hbq_dmabuf *hbq_buf) +{ + int rc; + struct lpfc_rqe hrqe; + struct lpfc_rqe drqe; + + hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys); + hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys); + drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys); + drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys); + rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, + &hrqe, &drqe); + if (rc < 0) + return rc; + hbq_buf->tag = rc; + list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list); + return 0; } /* HBQ for ELS and CT traffic. */ @@ -914,7 +1442,7 @@ lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) dbuf.list); hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | (hbqno << 16)); - if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { + if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { phba->hbqs[hbqno].buffer_count++; posted++; } else @@ -965,6 +1493,25 @@ lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) } /** + * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list + * @phba: Pointer to HBA context object. + * @hbqno: HBQ number. + * + * This function removes the first hbq buffer on an hbq list and returns a + * pointer to that buffer. If it finds no buffers on the list it returns NULL. + **/ +static struct hbq_dmabuf * +lpfc_sli_hbqbuf_get(struct list_head *rb_list) +{ + struct lpfc_dmabuf *d_buf; + + list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list); + if (!d_buf) + return NULL; + return container_of(d_buf, struct hbq_dmabuf, dbuf); +} + +/** * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag * @phba: Pointer to HBA context object. * @tag: Tag of the hbq buffer. @@ -985,12 +1532,15 @@ lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) if (hbqno >= LPFC_MAX_HBQS) return NULL; + spin_lock_irq(&phba->hbalock); list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); if (hbq_buf->tag == tag) { + spin_unlock_irq(&phba->hbalock); return hbq_buf; } } + spin_unlock_irq(&phba->hbalock); lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, "1803 Bad hbq tag. Data: x%x x%x\n", tag, phba->hbqs[tag >> 16].buffer_count); @@ -1013,9 +1563,8 @@ lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) if (hbq_buffer) { hbqno = hbq_buffer->tag >> 16; - if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { + if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); - } } } @@ -1086,6 +1635,15 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand) case MBX_HEARTBEAT: case MBX_PORT_CAPABILITIES: case MBX_PORT_IOV_CONTROL: + case MBX_SLI4_CONFIG: + case MBX_SLI4_REQ_FTRS: + case MBX_REG_FCFI: + case MBX_UNREG_FCFI: + case MBX_REG_VFI: + case MBX_UNREG_VFI: + case MBX_INIT_VPI: + case MBX_INIT_VFI: + case MBX_RESUME_RPI: ret = mbxCommand; break; default: @@ -1106,7 +1664,7 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand) * will wake up thread waiting on the wait queue pointed by context1 * of the mailbox. **/ -static void +void lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) { wait_queue_head_t *pdone_q; @@ -1140,7 +1698,7 @@ void lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_dmabuf *mp; - uint16_t rpi; + uint16_t rpi, vpi; int rc; mp = (struct lpfc_dmabuf *) (pmb->context1); @@ -1150,24 +1708,30 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) kfree(mp); } + if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && + (phba->sli_rev == LPFC_SLI_REV4)) + lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); + /* * If a REG_LOGIN succeeded after node is destroyed or node * is in re-discovery driver need to cleanup the RPI. */ if (!(phba->pport->load_flag & FC_UNLOADING) && - pmb->mb.mbxCommand == MBX_REG_LOGIN64 && - !pmb->mb.mbxStatus) { - - rpi = pmb->mb.un.varWords[0]; - lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb); + pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 && + !pmb->u.mb.mbxStatus) { + rpi = pmb->u.mb.un.varWords[0]; + vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base; + lpfc_unreg_login(phba, vpi, rpi, pmb); pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (rc != MBX_NOT_FINISHED) return; } - mempool_free(pmb, phba->mbox_mem_pool); - return; + if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG) + lpfc_sli4_mbox_cmd_free(phba, pmb); + else + mempool_free(pmb, phba->mbox_mem_pool); } /** @@ -1204,7 +1768,7 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba) if (pmb == NULL) break; - pmbox = &pmb->mb; + pmbox = &pmb->u.mb; if (pmbox->mbxCommand != MBX_HEARTBEAT) { if (pmb->vport) { @@ -1233,9 +1797,10 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba) /* Unknow mailbox command compl */ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "(%d):0323 Unknown Mailbox command " - "%x Cmpl\n", + "x%x (x%x) Cmpl\n", pmb->vport ? pmb->vport->vpi : 0, - pmbox->mbxCommand); + pmbox->mbxCommand, + lpfc_sli4_mbox_opcode_get(phba, pmb)); phba->link_state = LPFC_HBA_ERROR; phba->work_hs = HS_FFER3; lpfc_handle_eratt(phba); @@ -1250,29 +1815,29 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba) LOG_MBOX | LOG_SLI, "(%d):0305 Mbox cmd cmpl " "error - RETRYing Data: x%x " - "x%x x%x x%x\n", + "(x%x) x%x x%x x%x\n", pmb->vport ? pmb->vport->vpi :0, pmbox->mbxCommand, + lpfc_sli4_mbox_opcode_get(phba, + pmb), pmbox->mbxStatus, pmbox->un.varWords[0], pmb->vport->port_state); pmbox->mbxStatus = 0; pmbox->mbxOwner = OWN_HOST; - spin_lock_irq(&phba->hbalock); - phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; - spin_unlock_irq(&phba->hbalock); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); - if (rc == MBX_SUCCESS) + if (rc != MBX_NOT_FINISHED) continue; } } /* Mailbox cmd <cmd> Cmpl <cmpl> */ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, - "(%d):0307 Mailbox cmd x%x Cmpl x%p " + "(%d):0307 Mailbox cmd x%x (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", pmb->vport ? pmb->vport->vpi : 0, pmbox->mbxCommand, + lpfc_sli4_mbox_opcode_get(phba, pmb), pmb->mbox_cmpl, *((uint32_t *) pmbox), pmbox->un.varWords[0], @@ -1317,6 +1882,45 @@ lpfc_sli_get_buff(struct lpfc_hba *phba, return &hbq_entry->dbuf; } +/** + * lpfc_complete_unsol_iocb - Complete an unsolicited sequence + * @phba: Pointer to HBA context object. + * @pring: Pointer to driver SLI ring object. + * @saveq: Pointer to the iocbq struct representing the sequence starting frame. + * @fch_r_ctl: the r_ctl for the first frame of the sequence. + * @fch_type: the type for the first frame of the sequence. + * + * This function is called with no lock held. This function uses the r_ctl and + * type of the received sequence to find the correct callback function to call + * to process the sequence. + **/ +static int +lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, + struct lpfc_iocbq *saveq, uint32_t fch_r_ctl, + uint32_t fch_type) +{ + int i; + + /* unSolicited Responses */ + if (pring->prt[0].profile) { + if (pring->prt[0].lpfc_sli_rcv_unsol_event) + (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, + saveq); + return 1; + } + /* We must search, based on rctl / type + for the right routine */ + for (i = 0; i < pring->num_mask; i++) { + if ((pring->prt[i].rctl == fch_r_ctl) && + (pring->prt[i].type == fch_type)) { + if (pring->prt[i].lpfc_sli_rcv_unsol_event) + (pring->prt[i].lpfc_sli_rcv_unsol_event) + (phba, pring, saveq); + return 1; + } + } + return 0; +} /** * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler @@ -1339,7 +1943,7 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, IOCB_t * irsp; WORD5 * w5p; uint32_t Rctl, Type; - uint32_t match, i; + uint32_t match; struct lpfc_iocbq *iocbq; struct lpfc_dmabuf *dmzbuf; @@ -1482,35 +2086,12 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, } } - /* unSolicited Responses */ - if (pring->prt[0].profile) { - if (pring->prt[0].lpfc_sli_rcv_unsol_event) - (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)) { - if (pring->prt[i].lpfc_sli_rcv_unsol_event) - (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 */ + if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type)) lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, "0313 Ring %d handler: unexpected Rctl x%x " "Type x%x received\n", pring->ringno, Rctl, Type); - } + return 1; } @@ -1552,6 +2133,37 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, } /** + * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag + * @phba: Pointer to HBA context object. + * @pring: Pointer to driver SLI ring object. + * @iotag: IOCB tag. + * + * This function looks up the iocb_lookup table to get the command iocb + * corresponding to the given iotag. This function is called with the + * hbalock held. + * This function returns the command iocb object if it finds the command + * iocb else returns NULL. + **/ +static struct lpfc_iocbq * +lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba, + struct lpfc_sli_ring *pring, uint16_t iotag) +{ + struct lpfc_iocbq *cmd_iocb; + + if (iotag != 0 && iotag <= phba->sli.last_iotag) { + cmd_iocb = phba->sli.iocbq_lookup[iotag]; + list_del_init(&cmd_iocb->list); + pring->txcmplq_cnt--; + return cmd_iocb; + } + + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0372 iotag x%x is out off range: max iotag (x%x)\n", + iotag, phba->sli.last_iotag); + return NULL; +} + +/** * lpfc_sli_process_sol_iocb - process solicited iocb completion * @phba: Pointer to HBA context object. * @pring: Pointer to driver SLI ring object. @@ -1954,7 +2566,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { spin_unlock_irqrestore(&phba->hbalock, iflag); - lpfc_rampdown_queue_depth(phba); + phba->lpfc_rampdown_queue_depth(phba); spin_lock_irqsave(&phba->hbalock, iflag); } @@ -2068,39 +2680,215 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, } /** - * lpfc_sli_handle_slow_ring_event - Handle ring events for non-FCP rings + * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb + * @phba: Pointer to HBA context object. + * @pring: Pointer to driver SLI ring object. + * @rspiocbp: Pointer to driver response IOCB object. + * + * This function is called from the worker thread when there is a slow-path + * response IOCB to process. This function chains all the response iocbs until + * seeing the iocb with the LE bit set. The function will call + * lpfc_sli_process_sol_iocb function if the response iocb indicates a + |