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boundary="===============0250356005849374533==" Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org --===============0250356005849374533== Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000071186405b2070d3f" --00000000000071186405b2070d3f From: Gaurav Srivastava This patch implements ELS command like QFPA and UVEM for the priority tagging appid support. Other supporting functions are also part of this patch. Signed-off-by: Gaurav Srivastava Signed-off-by: James Smart --- v2: Ported the patch on top of 5.10/scsi-queue --- drivers/scsi/lpfc/lpfc_els.c | 356 ++++++++++++++++++++++++++++++++++- 1 file changed, 349 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index f4e274eb6c9c..4f61d2edb89b 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -55,6 +56,8 @@ static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint8_t retry); static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb); +static void lpfc_cmpl_els_uvem(struct lpfc_hba *, struct lpfc_iocbq *, + struct lpfc_iocbq *); static int lpfc_max_els_tries = 3; @@ -316,12 +319,12 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, if (expectRsp) { /* Xmit ELS command to remote NPORT */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, - "0116 Xmit ELS command x%x to remote " - "NPORT x%x I/O tag: x%x, port state:x%x " - "rpi x%x fc_flag:x%x\n", + "0116 Xmit ELS command x%x to remote\n" + "NPORT x%x I/O tag: x%x, port state:x%x\n" + "rpi x%x fc_flag:x%x nlp_flag:x%x vport:x%p\n", elscmd, did, elsiocb->iotag, vport->port_state, ndlp->nlp_rpi, - vport->fc_flag); + vport->fc_flag, ndlp->nlp_flag, vport); } else { /* Xmit ELS response to remote NPORT */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, @@ -1116,12 +1119,16 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, /* FLOGI completes successfully */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, - "0101 FLOGI completes successfully, I/O tag:x%x, " - "xri x%x Data: x%x x%x x%x x%x x%x %x\n", + "0101 FLOGI completes successfully, I/O tag:x%x,\n" + "xri x%x Data: x%x x%x x%x x%x x%x %x %x\n", cmdiocb->iotag, cmdiocb->sli4_xritag, irsp->un.ulpWord[4], sp->cmn.e_d_tov, sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution, - vport->port_state, vport->fc_flag); + vport->port_state, vport->fc_flag, + sp->cmn.priority_tagging); + + if (sp->cmn.priority_tagging) + vport->vmid_flag |= LPFC_VMID_ISSUE_QFPA; if (vport->port_state == LPFC_FLOGI) { /* @@ -1302,6 +1309,18 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, if (sp->cmn.fcphHigh < FC_PH3) sp->cmn.fcphHigh = FC_PH3; + /* to deterine if switch supports priority tagging */ + if (phba->cfg_vmid_priority_tagging) { + sp->cmn.priority_tagging = 1; + /* lpfc_vmid_host_uuid is combination of wwpn and wwnn */ + if (vport->lpfc_vmid_host_uuid[0] == 0) { + memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn, + sizeof(phba->wwpn)); + memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn, + sizeof(phba->wwnn)); + } + } + if (phba->sli_rev == LPFC_SLI_REV4) { if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_IF_TYPE_0) { @@ -1999,6 +2018,7 @@ lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp; struct lpfc_dmabuf *prsp; int disc; + struct serv_parm *sp = NULL; /* we pass cmdiocb to state machine which needs rspiocb as well */ cmdiocb->context_un.rsp_iocb = rspiocb; @@ -2074,6 +2094,23 @@ lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, cmdiocb->context2)->list.next, struct lpfc_dmabuf, list); ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); + + sp = (struct serv_parm *)((u8 *)prsp->virt + + sizeof(u32)); + + ndlp->vmid_support = 0; + if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) || + (phba->cfg_vmid_priority_tagging && + sp->cmn.priority_tagging)) { + lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS, + "4018 app_hdr_support %d tagging %d DID x%x", + sp->cmn.app_hdr_support, + sp->cmn.priority_tagging, + ndlp->nlp_DID); + /* if the dest port supports VMID, mark it in ndlp */ + ndlp->vmid_support = 1; + } + lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_PLOGI); } @@ -2192,6 +2229,14 @@ lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); sp->cmn.bbRcvSizeMsb &= 0xF; + /* check if the destination port supports VMID */ + ndlp->vmid_support = 0; + if (vport->vmid_priority_tagging) + sp->cmn.priority_tagging = 1; + else if (phba->cfg_vmid_app_header && + bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags)) + sp->cmn.app_hdr_support = 1; + lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue PLOGI: did:x%x", did, 0, 0); @@ -10162,3 +10207,300 @@ lpfc_sli_abts_recover_port(struct lpfc_vport *vport, lpfc_unreg_rpi(vport, ndlp); } +void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport) +{ + bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE); +} + +void +lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max) +{ + u32 i; + + if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE)) + return; + + for (i = min; i <= max; i++) + set_bit(i, vport->vmid_priority_range); +} + +void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid) +{ + set_bit(ctcl_vmid, vport->vmid_priority_range); +} + +u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport) +{ + u32 i; + + i = find_first_bit(vport->vmid_priority_range, + LPFC_VMID_MAX_PRIORITY_RANGE); + + if (i == LPFC_VMID_MAX_PRIORITY_RANGE) + return 0; + + clear_bit(i, vport->vmid_priority_range); + return i; +} + +#define MAX_PRIORITY_DESC 255 + +static void +lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, + struct lpfc_iocbq *rspiocb) +{ + struct lpfc_vport *vport = cmdiocb->vport; + struct priority_range_desc *desc; + struct lpfc_dmabuf *prsp = NULL; + struct lpfc_vmid_priority_range *vmid_range = NULL; + u32 *data; + struct lpfc_dmabuf *dmabuf = cmdiocb->context2; + IOCB_t *irsp = &rspiocb->iocb; + u8 *pcmd; + u32 len, i; + + prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); + if (!prsp) + goto out; + + pcmd = prsp->virt; + data = (u32 *)pcmd; + if (*((u32 *)(pcmd)) == ELS_CMD_LS_RJT) { + lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, + "6528 QFPA LS_RJT %x %x ", data[0], data[1]); + goto out; + } + if (irsp->ulpStatus) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, + "6529 QFPA failed with status %x %x ", + irsp->ulpStatus, irsp->un.ulpWord[4]); + goto out; + } + + if (!vport->qfpa_res) { + vport->qfpa_res = kmalloc(FCELSSIZE, GFP_KERNEL); + if (!vport->qfpa_res) + goto out; + memset(vport->qfpa_res, 0, FCELSSIZE); + } + + len = *((u32 *)(pcmd + 4)); + len = be32_to_cpu(len); + memcpy(vport->qfpa_res, pcmd, len + 8); + len = len / LPFC_PRIORITY_RANGE_DESC_SIZE; + + desc = (struct priority_range_desc *)(pcmd + 8); + vmid_range = vport->vmid_priority.vmid_range; + if (!vmid_range) { + vmid_range = kmalloc_array(MAX_PRIORITY_DESC, + sizeof + (struct lpfc_vmid_priority_range), + GFP_KERNEL); + if (!vmid_range) + goto out; + memset(vmid_range, 0, MAX_PRIORITY_DESC * + sizeof(struct lpfc_vmid_priority_range)); + vport->vmid_priority.vmid_range = vmid_range; + } + vport->vmid_priority.num_descriptors = len; + + for (i = 0; i < len; i++, vmid_range++, desc++) { + lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, + "6539 vmid values low=%d, high=%d, qos=%d,\n" + " local ve id=%d\n", desc->lo_range, + desc->hi_range, desc->qos_priority, + desc->local_ve_id); + + vmid_range->low = desc->lo_range << 1; + if (desc->local_ve_id == QFPA_ODD_ONLY) + vmid_range->low++; + if (desc->qos_priority) + vport->vmid_flag |= LPFC_VMID_QOS_ENABLED; + vmid_range->qos = desc->qos_priority; + + vmid_range->high = desc->hi_range << 1; + if ((desc->local_ve_id == QFPA_ODD_ONLY) || + (desc->local_ve_id == QFPA_EVEN_ODD)) + vmid_range->high++; + } + lpfc_init_cs_ctl_bitmap(vport); + for (i = 0; i < vport->vmid_priority.num_descriptors; i++) { + lpfc_vmid_set_cs_ctl_range(vport, + vport->vmid_priority.vmid_range[i].low, + vport->vmid_priority.vmid_range[i].high); + } + + vport->vmid_flag |= LPFC_VMID_QFPA_CMPL; + out: + lpfc_els_free_iocb(phba, cmdiocb); +} + +int lpfc_issue_els_qfpa(struct lpfc_vport *vport) +{ + struct lpfc_hba *phba = vport->phba; + IOCB_t *icmd; + struct lpfc_nodelist *ndlp; + struct lpfc_iocbq *elsiocb; + struct lpfc_sli *psli; + u8 *pcmd; + int ret; + + psli = &phba->sli; + + ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); + if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) + return 1; + + if (!ndlp) + return 1; + + elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp, + ndlp->nlp_DID, ELS_CMD_QFPA); + if (!elsiocb) + return 1; + + icmd = &elsiocb->iocb; + pcmd = (u8 *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt); + + *((u32 *)(pcmd)) = ELS_CMD_QFPA; + pcmd += 4; + + elsiocb->iocb_cmpl = lpfc_cmpl_els_qfpa; + ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2); + if (ret != IOCB_SUCCESS) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } + vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED; + return 0; +} + +int +lpfc_vmid_uvem(struct lpfc_vport *vport, + struct lpfc_vmid *vmid, bool instantiated) +{ + struct lpfc_vem_id_desc *vem_id_desc; + struct lpfc_nodelist *ndlp; + IOCB_t *icmd; + struct lpfc_iocbq *elsiocb; + struct instantiated_ve_desc *inst_desc; + struct lpfc_vmid_context *vmid_context; + u8 *pcmd; + u32 *len; + int ret = 0; + + ndlp = lpfc_findnode_did(vport, Fabric_DID); + if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) + return 1; + + vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL); + if (!vmid_context) + return 1; + elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2, + ndlp, Fabric_DID, ELS_CMD_UVEM); + if (!elsiocb) + goto out; + + lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, + "3427 %s %d", vmid->host_vmid, instantiated); + vmid_context->vmp = vmid; + vmid_context->nlp = ndlp; + vmid_context->instantiated = instantiated; + elsiocb->vmid_tag.vmid_context = vmid_context; + icmd = &elsiocb->iocb; + pcmd = (u8 *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt); + + if (vport->lpfc_vmid_host_uuid[0] == 0) + memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid, + LPFC_COMPRESS_VMID_SIZE); + + *((u32 *)(pcmd)) = ELS_CMD_UVEM; + len = (u32 *)(pcmd + 4); + *len = cpu_to_be32(LPFC_UVEM_SIZE - 8); + + vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8); + vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG); + vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE); + memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid, + LPFC_COMPRESS_VMID_SIZE); + + inst_desc = (struct instantiated_ve_desc *)(pcmd + 32); + inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); + inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE); + memcpy(inst_desc->global_vem_id, vmid->host_vmid, + LPFC_COMPRESS_VMID_SIZE); + + bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID); + bf_set(lpfc_instantiated_local_id, inst_desc, + vmid->un.cs_ctl_vmid); + if (instantiated) { + inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); + } else { + inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG); + lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid); + } + inst_desc->word6 = cpu_to_be32(inst_desc->word6); + + elsiocb->iocb_cmpl = lpfc_cmpl_els_uvem; + ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0); + if (ret != IOCB_SUCCESS) { + lpfc_els_free_iocb(vport->phba, elsiocb); + goto out; + } + + return 0; + out: + kfree(vmid_context); + return 1; +} + +static void +lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb, + struct lpfc_iocbq *rspiocb) +{ + struct lpfc_vport *vport = icmdiocb->vport; + struct lpfc_dmabuf *prsp = NULL; + struct lpfc_vmid_context *vmid_context = + icmdiocb->vmid_tag.vmid_context; + struct lpfc_nodelist *ndlp = icmdiocb->context1; + u8 *pcmd; + u32 *data; + IOCB_t *irsp = &rspiocb->iocb; + struct lpfc_dmabuf *dmabuf = icmdiocb->context2; + struct lpfc_vmid *vmid; + + vmid = vmid_context->vmp; + if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) + ndlp = NULL; + + prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); + if (!prsp) + goto out; + pcmd = prsp->virt; + data = (u32 *)pcmd; + if (*((u32 *)(pcmd)) == ELS_CMD_LS_RJT) { + lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, + "4532 UVEM LS_RJT %x %x ", data[0], data[1]); + goto out; + } + if (irsp->ulpStatus) { + lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, + "4533 UVEM error status %x: %x ", + irsp->ulpStatus, irsp->un.ulpWord[4]); + goto out; + } + spin_lock(&phba->hbalock); + /* Set IN USE flag */ + vport->vmid_flag |= LPFC_VMID_IN_USE; + phba->pport->vmid_flag |= LPFC_VMID_IN_USE; + spin_unlock(&phba->hbalock); + + if (vmid_context->instantiated) { + vmid->flag |= LPFC_VMID_REGISTERED; + vmid->flag &= ~LPFC_VMID_REQ_REGISTER; + } + + out: + kfree(vmid_context); + lpfc_els_free_iocb(phba, icmdiocb); +} -- 2.26.2 --00000000000071186405b2070d3f Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature 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