From: James Smart Date: Wed, 6 Jul 2016 19:36:00 +0000 (-0700) Subject: lpfc: Add MDS Diagnostics Support X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7bdedb34a0ac1a4b30224c6945eaaebc6fae779a;p=linux-beck.git lpfc: Add MDS Diagnostics Support Add MDS Diagnostics Support Signed-off-by: Dick Kennedy Signed-off-by: James Smart Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 64d6e3399a68..69da16d63a01 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -695,7 +695,8 @@ struct lpfc_hba { uint8_t wwnn[8]; uint8_t wwpn[8]; uint32_t RandomData[7]; - uint32_t fcp_embed_io; + uint8_t fcp_embed_io; + uint8_t mds_diags_support; /* HBA Config Parameters */ uint32_t cfg_ack0; @@ -760,6 +761,7 @@ struct lpfc_hba { #define LPFC_FDMI_NO_SUPPORT 0 /* FDMI not supported */ #define LPFC_FDMI_SUPPORT 1 /* FDMI supported? */ uint32_t cfg_enable_SmartSAN; + uint32_t cfg_enable_mds_diags; lpfc_vpd_t vpd; /* vital product data */ struct pci_dev *pcidev; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index cfec2eca4dd3..cde7da6af2ea 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -4780,6 +4780,14 @@ LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT, "Max Protection Scatter Gather Segment Count"); +/* + * lpfc_enable_mds_diags: Enable MDS Diagnostics + * 0 = MDS Diagnostics disabled (default) + * 1 = MDS Diagnostics enabled + * Value range is [0,1]. Default value is 0. + */ +LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); + struct device_attribute *lpfc_hba_attrs[] = { &dev_attr_bg_info, &dev_attr_bg_guard_err, @@ -4876,6 +4884,7 @@ struct device_attribute *lpfc_hba_attrs[] = { &dev_attr_lpfc_sriov_hw_max_virtfn, &dev_attr_protocol, &dev_attr_lpfc_xlane_supported, + &dev_attr_lpfc_enable_mds_diags, NULL, }; @@ -5867,6 +5876,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba) lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt); phba->cfg_enable_dss = 1; + lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); return; } diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 861270edd84a..5afbf4d06d53 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -3299,6 +3299,12 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, FC_VPORT_FABRIC_REJ_WWN); } break; + case LSRJT_VENDOR_UNIQUE: + if ((stat.un.b.vendorUnique == 0x45) && + (cmd == ELS_CMD_FLOGI)) { + goto out_retry; + } + break; } break; @@ -3344,6 +3350,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, if ((vport->load_flag & FC_UNLOADING) != 0) retry = 0; +out_retry: if (retry) { if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { /* Stop retrying PLOGI and FDISC if in FCF discovery */ diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index 8738b3dc87f1..ee8022737591 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -2888,9 +2888,13 @@ struct lpfc_sli4_parameters { #define cfg_ext_embed_cb_SHIFT 0 #define cfg_ext_embed_cb_MASK 0x00000001 #define cfg_ext_embed_cb_WORD word19 +#define cfg_mds_diags_SHIFT 1 +#define cfg_mds_diags_MASK 0x00000001 +#define cfg_mds_diags_WORD word19 }; -#define LPFC_SET_UE_RECOVERY 0x10 +#define LPFC_SET_UE_RECOVERY 0x10 +#define LPFC_SET_MDS_DIAGS 0x11 struct lpfc_mbx_set_feature { struct mbox_header header; uint32_t feature; @@ -2899,6 +2903,12 @@ struct lpfc_mbx_set_feature { #define lpfc_mbx_set_feature_UER_SHIFT 0 #define lpfc_mbx_set_feature_UER_MASK 0x00000001 #define lpfc_mbx_set_feature_UER_WORD word6 +#define lpfc_mbx_set_feature_mds_SHIFT 0 +#define lpfc_mbx_set_feature_mds_MASK 0x00000001 +#define lpfc_mbx_set_feature_mds_WORD word6 +#define lpfc_mbx_set_feature_mds_deep_loopbk_SHIFT 1 +#define lpfc_mbx_set_feature_mds_deep_loopbk_MASK 0x00000001 +#define lpfc_mbx_set_feature_mds_deep_loopbk_WORD word6 uint32_t word7; #define lpfc_mbx_set_feature_UERP_SHIFT 0 #define lpfc_mbx_set_feature_UERP_MASK 0x0000ffff @@ -3464,6 +3474,8 @@ struct lpfc_acqe_fc_la { #define LPFC_FC_LA_TYPE_LINK_UP 0x1 #define LPFC_FC_LA_TYPE_LINK_DOWN 0x2 #define LPFC_FC_LA_TYPE_NO_HARD_ALPA 0x3 +#define LPFC_FC_LA_TYPE_MDS_LINK_DOWN 0x4 +#define LPFC_FC_LA_TYPE_MDS_LOOPBACK 0x5 #define lpfc_acqe_fc_la_port_type_SHIFT 6 #define lpfc_acqe_fc_la_port_type_MASK 0x00000003 #define lpfc_acqe_fc_la_port_type_WORD word0 diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index f11e33ee4132..bb514d2262cf 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4040,6 +4040,8 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) { struct lpfc_dmabuf *mp; LPFC_MBOXQ_t *pmb; + MAILBOX_t *mb; + struct lpfc_mbx_read_top *la; int rc; if (bf_get(lpfc_trailer_type, acqe_fc) != @@ -4110,6 +4112,24 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; pmb->vport = phba->pport; + if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { + /* Parse and translate status field */ + mb = &pmb->u.mb; + mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, + (void *)acqe_fc); + + /* Parse and translate link attention fields */ + la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; + la->eventTag = acqe_fc->event_tag; + bf_set(lpfc_mbx_read_top_att_type, la, + LPFC_FC_LA_TYPE_LINK_DOWN); + + /* Invoke the mailbox command callback function */ + lpfc_mbx_cmpl_read_topology(phba, pmb); + + return; + } + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) goto out_free_dmabuf; @@ -9585,6 +9605,14 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) phba->fcp_embed_io = 1; else phba->fcp_embed_io = 0; + + /* + * Check if the SLI port supports MDS Diagnostics + */ + if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) + phba->mds_diags_support = 1; + else + phba->mds_diags_support = 0; return 0; } diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index b3a781d38fa8..6eef9720e5c9 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -5691,37 +5691,35 @@ lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type) } void -lpfc_set_features(struct lpfc_hba *phba) +lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox, + uint32_t feature) { - LPFC_MBOXQ_t *mbox = NULL; uint32_t len; - int rc; - mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); - if (!mbox) - return; len = sizeof(struct lpfc_mbx_set_feature) - sizeof(struct lpfc_sli4_cfg_mhdr); lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, LPFC_MBOX_OPCODE_SET_FEATURES, len, LPFC_SLI4_MBX_EMBED); - bf_set(lpfc_mbx_set_feature_UER, - &mbox->u.mqe.un.set_feature, 1); - mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY; - mbox->u.mqe.un.set_feature.param_len = 8; - rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); - if (rc != MBX_SUCCESS) { - mempool_free(mbox, phba->mbox_mem_pool); - return; + switch (feature) { + case LPFC_SET_UE_RECOVERY: + bf_set(lpfc_mbx_set_feature_UER, + &mbox->u.mqe.un.set_feature, 1); + mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY; + mbox->u.mqe.un.set_feature.param_len = 8; + break; + case LPFC_SET_MDS_DIAGS: + bf_set(lpfc_mbx_set_feature_mds, + &mbox->u.mqe.un.set_feature, 1); + bf_set(lpfc_mbx_set_feature_mds_deep_loopbk, + &mbox->u.mqe.un.set_feature, 0); + mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS; + mbox->u.mqe.un.set_feature.param_len = 8; + break; } - phba->hba_flag |= HBA_RECOVERABLE_UE; - phba->eratt_poll_interval = 1; /* Set 1Sec interval to detect UE */ - phba->sli4_hba.ue_to_sr = bf_get(lpfc_mbx_set_feature_UESR, - &mbox->u.mqe.un.set_feature); - phba->sli4_hba.ue_to_rp = bf_get(lpfc_mbx_set_feature_UERP, - &mbox->u.mqe.un.set_feature); - mempool_free(mbox, phba->mbox_mem_pool); + + return; } /** @@ -6449,8 +6447,29 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba) } if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == - LPFC_SLI_INTF_IF_TYPE_0) - lpfc_set_features(phba); + LPFC_SLI_INTF_IF_TYPE_0) { + lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY); + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + if (rc == MBX_SUCCESS) { + phba->hba_flag |= HBA_RECOVERABLE_UE; + /* Set 1Sec interval to detect UE */ + phba->eratt_poll_interval = 1; + phba->sli4_hba.ue_to_sr = bf_get( + lpfc_mbx_set_feature_UESR, + &mboxq->u.mqe.un.set_feature); + phba->sli4_hba.ue_to_rp = bf_get( + lpfc_mbx_set_feature_UERP, + &mboxq->u.mqe.un.set_feature); + } + } + + if (phba->cfg_enable_mds_diags && phba->mds_diags_support) { + /* Enable MDS Diagnostics only if the SLI Port supports it */ + lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS); + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + if (rc != MBX_SUCCESS) + phba->mds_diags_support = 0; + } /* * Discover the port's supported feature set and match it against the