diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 140 |
1 files changed, 116 insertions, 24 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 2207726b88ee..70edf21ae1b9 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) 2004-2015 Emulex. All rights reserved. * + * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -2000,10 +2000,9 @@ lpfc_sli_hbqbuf_get(struct list_head *rb_list) * @phba: Pointer to HBA context object. * @tag: Tag of the hbq buffer. * - * This function is called with hbalock held. This function searches - * for the hbq buffer associated with the given tag in the hbq buffer - * list. If it finds the hbq buffer, it returns the hbq_buffer other wise - * it returns NULL. + * This function searches for the hbq buffer associated with the given tag in + * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer + * otherwise it returns NULL. **/ static struct hbq_dmabuf * lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) @@ -2012,8 +2011,6 @@ lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) struct hbq_dmabuf *hbq_buf; uint32_t hbqno; - lockdep_assert_held(&phba->hbalock); - hbqno = tag >> 16; if (hbqno >= LPFC_MAX_HBQS) return NULL; @@ -2211,6 +2208,7 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) rpi = pmb->u.mb.un.varWords[0]; vpi = pmb->u.mb.un.varRegLogin.vpi; lpfc_unreg_login(phba, vpi, rpi, pmb); + pmb->vport = vport; pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (rc != MBX_NOT_FINISHED) @@ -4688,6 +4686,7 @@ lpfc_sli_hba_setup(struct lpfc_hba *phba) break; } + phba->fcp_embed_io = 0; /* SLI4 FC support only */ rc = lpfc_sli_config_port(phba, mode); @@ -6320,10 +6319,12 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba) mqe = &mboxq->u.mqe; phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev); - if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) + if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) { phba->hba_flag |= HBA_FCOE_MODE; - else + phba->fcp_embed_io = 0; /* SLI4 FC support only */ + } else { phba->hba_flag &= ~HBA_FCOE_MODE; + } if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) == LPFC_DCBX_CEE_MODE) @@ -8218,12 +8219,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, else command_type = ELS_COMMAND_NON_FIP; + if (phba->fcp_embed_io) + memset(wqe, 0, sizeof(union lpfc_wqe128)); /* Some of the fields are in the right position already */ memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe)); - abort_tag = (uint32_t) iocbq->iotag; - xritag = iocbq->sli4_xritag; wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */ wqe->generic.wqe_com.word10 = 0; + + abort_tag = (uint32_t) iocbq->iotag; + xritag = iocbq->sli4_xritag; /* words0-2 bpl convert bde */ if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize / @@ -8372,11 +8376,9 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, iocbq->iocb.ulpFCP2Rcvy); bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS); /* Always open the exchange */ - bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0); bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE); bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_LENLOC_WORD4); - bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0); bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU); bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1); if (iocbq->iocb_flag & LPFC_IO_OAS) { @@ -8387,6 +8389,35 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, (phba->cfg_XLanePriority << 1)); } } + /* Note, word 10 is already initialized to 0 */ + + if (phba->fcp_embed_io) { + struct lpfc_scsi_buf *lpfc_cmd; + struct sli4_sge *sgl; + union lpfc_wqe128 *wqe128; + struct fcp_cmnd *fcp_cmnd; + uint32_t *ptr; + + /* 128 byte wqe support here */ + wqe128 = (union lpfc_wqe128 *)wqe; + + lpfc_cmd = iocbq->context1; + sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; + fcp_cmnd = lpfc_cmd->fcp_cmnd; + + /* Word 0-2 - FCP_CMND */ + wqe128->generic.bde.tus.f.bdeFlags = + BUFF_TYPE_BDE_IMMED; + wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len; + wqe128->generic.bde.addrHigh = 0; + wqe128->generic.bde.addrLow = 88; /* Word 22 */ + + bf_set(wqe_wqes, &wqe128->fcp_iwrite.wqe_com, 1); + + /* Word 22-29 FCP CMND Payload */ + ptr = &wqe128->words[22]; + memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd)); + } break; case CMD_FCP_IREAD64_CR: /* word3 iocb=iotag wqe=payload_offset_len */ @@ -8401,11 +8432,9 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, iocbq->iocb.ulpFCP2Rcvy); bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS); /* Always open the exchange */ - bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ); bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com, LPFC_WQE_LENLOC_WORD4); - bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0); bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU); bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1); if (iocbq->iocb_flag & LPFC_IO_OAS) { @@ -8416,6 +8445,35 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, (phba->cfg_XLanePriority << 1)); } } + /* Note, word 10 is already initialized to 0 */ + + if (phba->fcp_embed_io) { + struct lpfc_scsi_buf *lpfc_cmd; + struct sli4_sge *sgl; + union lpfc_wqe128 *wqe128; + struct fcp_cmnd *fcp_cmnd; + uint32_t *ptr; + + /* 128 byte wqe support here */ + wqe128 = (union lpfc_wqe128 *)wqe; + + lpfc_cmd = iocbq->context1; + sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; + fcp_cmnd = lpfc_cmd->fcp_cmnd; + + /* Word 0-2 - FCP_CMND */ + wqe128->generic.bde.tus.f.bdeFlags = + BUFF_TYPE_BDE_IMMED; + wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len; + wqe128->generic.bde.addrHigh = 0; + wqe128->generic.bde.addrLow = 88; /* Word 22 */ + + bf_set(wqe_wqes, &wqe128->fcp_iread.wqe_com, 1); + + /* Word 22-29 FCP CMND Payload */ + ptr = &wqe128->words[22]; + memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd)); + } break; case CMD_FCP_ICMND64_CR: /* word3 iocb=iotag wqe=payload_offset_len */ @@ -8427,13 +8485,11 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, /* word3 iocb=IO_TAG wqe=reserved */ bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0); /* Always open the exchange */ - bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0); bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1); bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE); bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1); bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com, LPFC_WQE_LENLOC_NONE); - bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0); bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com, iocbq->iocb.ulpFCP2Rcvy); if (iocbq->iocb_flag & LPFC_IO_OAS) { @@ -8444,6 +8500,35 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, (phba->cfg_XLanePriority << 1)); } } + /* Note, word 10 is already initialized to 0 */ + + if (phba->fcp_embed_io) { + struct lpfc_scsi_buf *lpfc_cmd; + struct sli4_sge *sgl; + union lpfc_wqe128 *wqe128; + struct fcp_cmnd *fcp_cmnd; + uint32_t *ptr; + + /* 128 byte wqe support here */ + wqe128 = (union lpfc_wqe128 *)wqe; + + lpfc_cmd = iocbq->context1; + sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; + fcp_cmnd = lpfc_cmd->fcp_cmnd; + + /* Word 0-2 - FCP_CMND */ + wqe128->generic.bde.tus.f.bdeFlags = + BUFF_TYPE_BDE_IMMED; + wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len; + wqe128->generic.bde.addrHigh = 0; + wqe128->generic.bde.addrLow = 88; /* Word 22 */ + + bf_set(wqe_wqes, &wqe128->fcp_icmd.wqe_com, 1); + + /* Word 22-29 FCP CMND Payload */ + ptr = &wqe128->words[22]; + memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd)); + } break; case CMD_GEN_REQUEST64_CR: /* For this command calculate the xmit length of the @@ -8675,12 +8760,19 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, struct lpfc_iocbq *piocb, uint32_t flag) { struct lpfc_sglq *sglq; - union lpfc_wqe wqe; + union lpfc_wqe *wqe; + union lpfc_wqe128 wqe128; struct lpfc_queue *wq; struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; lockdep_assert_held(&phba->hbalock); + /* + * The WQE can be either 64 or 128 bytes, + * so allocate space on the stack assuming the largest. + */ + wqe = (union lpfc_wqe *)&wqe128; + if (piocb->sli4_xritag == NO_XRI) { if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) @@ -8727,7 +8819,7 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, return IOCB_ERROR; } - if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe)) + if (lpfc_sli4_iocb2wqe(phba, piocb, wqe)) return IOCB_ERROR; if ((piocb->iocb_flag & LPFC_IO_FCP) || @@ -8737,12 +8829,12 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, } else { wq = phba->sli4_hba.oas_wq; } - if (lpfc_sli4_wq_put(wq, &wqe)) + if (lpfc_sli4_wq_put(wq, wqe)) return IOCB_ERROR; } else { if (unlikely(!phba->sli4_hba.els_wq)) return IOCB_ERROR; - if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) + if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, wqe)) return IOCB_ERROR; } lpfc_sli_ringtxcmpl_put(phba, pring, piocb); @@ -8757,9 +8849,9 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, * pointer from the lpfc_hba struct. * * Return codes: - * IOCB_ERROR - Error - * IOCB_SUCCESS - Success - * IOCB_BUSY - Busy + * IOCB_ERROR - Error + * IOCB_SUCCESS - Success + * IOCB_BUSY - Busy **/ int __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, |