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scsi: lpfc: vmid: Implement ELS commands for appid
Implement ELS commands QFPA and UVEM for the priority tagging appid support. Link: https://lore.kernel.org/r/20210608043556.274139-8-muneendra.kumar@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Gaurav Srivastava <gaurav.srivastava@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Muneendra Kumar <muneendra.kumar@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Gaurav Srivastava
Martin K. Petersen
parent
5e633302ac
commit
7e473de75e
@ -25,6 +25,7 @@
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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@ -55,9 +56,15 @@ static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
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struct lpfc_nodelist *ndlp, uint8_t retry);
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static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
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struct lpfc_iocbq *iocb);
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static void lpfc_cmpl_els_uvem(struct lpfc_hba *, struct lpfc_iocbq *,
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struct lpfc_iocbq *);
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static int lpfc_max_els_tries = 3;
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static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport);
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static void lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max);
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static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid);
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/**
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* lpfc_els_chk_latt - Check host link attention event for a vport
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* @vport: pointer to a host virtual N_Port data structure.
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@ -314,10 +321,10 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
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lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
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"0116 Xmit ELS command x%x to remote "
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"NPORT x%x I/O tag: x%x, port state:x%x "
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"rpi x%x fc_flag:x%x\n",
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"rpi x%x fc_flag:x%x nlp_flag:x%x vport:x%p\n",
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elscmd, did, elsiocb->iotag,
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vport->port_state, ndlp->nlp_rpi,
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vport->fc_flag);
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vport->fc_flag, ndlp->nlp_flag, vport);
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} else {
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/* Xmit ELS response <elsCmd> to remote NPORT <did> */
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lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
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@ -1112,11 +1119,15 @@ stop_rr_fcf_flogi:
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/* FLOGI completes successfully */
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lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
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"0101 FLOGI completes successfully, I/O tag:x%x, "
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"xri x%x Data: x%x x%x x%x x%x x%x %x\n",
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"xri x%x Data: x%x x%x x%x x%x x%x x%x x%x\n",
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cmdiocb->iotag, cmdiocb->sli4_xritag,
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irsp->un.ulpWord[4], sp->cmn.e_d_tov,
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sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
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vport->port_state, vport->fc_flag);
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vport->port_state, vport->fc_flag,
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sp->cmn.priority_tagging);
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if (sp->cmn.priority_tagging)
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vport->vmid_flag |= LPFC_VMID_ISSUE_QFPA;
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if (vport->port_state == LPFC_FLOGI) {
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/*
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@ -1308,6 +1319,18 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
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if (sp->cmn.fcphHigh < FC_PH3)
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sp->cmn.fcphHigh = FC_PH3;
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/* Determine if switch supports priority tagging */
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if (phba->cfg_vmid_priority_tagging) {
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sp->cmn.priority_tagging = 1;
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/* lpfc_vmid_host_uuid is combination of wwpn and wwnn */
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if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) {
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memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn,
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sizeof(phba->wwpn));
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memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn,
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sizeof(phba->wwnn));
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}
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}
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if (phba->sli_rev == LPFC_SLI_REV4) {
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if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
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LPFC_SLI_INTF_IF_TYPE_0) {
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@ -1934,6 +1957,7 @@ lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
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struct lpfc_nodelist *ndlp, *free_ndlp;
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struct lpfc_dmabuf *prsp;
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int disc;
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struct serv_parm *sp = NULL;
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/* we pass cmdiocb to state machine which needs rspiocb as well */
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cmdiocb->context_un.rsp_iocb = rspiocb;
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@ -2035,6 +2059,23 @@ lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
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cmdiocb->context2)->list.next,
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struct lpfc_dmabuf, list);
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ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
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sp = (struct serv_parm *)((u8 *)prsp->virt +
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sizeof(u32));
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ndlp->vmid_support = 0;
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if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) ||
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(phba->cfg_vmid_priority_tagging &&
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sp->cmn.priority_tagging)) {
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lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS,
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"4018 app_hdr_support %d tagging %d DID x%x\n",
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sp->cmn.app_hdr_support,
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sp->cmn.priority_tagging,
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ndlp->nlp_DID);
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/* if the dest port supports VMID, mark it in ndlp */
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ndlp->vmid_support = 1;
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}
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lpfc_disc_state_machine(vport, ndlp, cmdiocb,
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NLP_EVT_CMPL_PLOGI);
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}
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@ -2157,6 +2198,14 @@ lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
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memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
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sp->cmn.bbRcvSizeMsb &= 0xF;
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/* Check if the destination port supports VMID */
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ndlp->vmid_support = 0;
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if (vport->vmid_priority_tagging)
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sp->cmn.priority_tagging = 1;
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else if (phba->cfg_vmid_app_header &&
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bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags))
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sp->cmn.app_hdr_support = 1;
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lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
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"Issue PLOGI: did:x%x",
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did, 0, 0);
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@ -10465,3 +10514,312 @@ lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
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lpfc_unreg_rpi(vport, ndlp);
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}
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static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport)
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{
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bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE);
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}
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static void
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lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max)
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{
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u32 i;
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if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE))
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return;
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for (i = min; i <= max; i++)
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set_bit(i, vport->vmid_priority_range);
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}
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static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid)
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{
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set_bit(ctcl_vmid, vport->vmid_priority_range);
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}
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u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport)
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{
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u32 i;
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i = find_first_bit(vport->vmid_priority_range,
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LPFC_VMID_MAX_PRIORITY_RANGE);
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if (i == LPFC_VMID_MAX_PRIORITY_RANGE)
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return 0;
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clear_bit(i, vport->vmid_priority_range);
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return i;
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}
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#define MAX_PRIORITY_DESC 255
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static void
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lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
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struct lpfc_iocbq *rspiocb)
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{
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struct lpfc_vport *vport = cmdiocb->vport;
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struct priority_range_desc *desc;
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struct lpfc_dmabuf *prsp = NULL;
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struct lpfc_vmid_priority_range *vmid_range = NULL;
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u32 *data;
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struct lpfc_dmabuf *dmabuf = cmdiocb->context2;
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IOCB_t *irsp = &rspiocb->iocb;
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u8 *pcmd, max_desc;
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u32 len, i;
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struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
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prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list);
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if (!prsp)
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goto out;
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pcmd = prsp->virt;
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data = (u32 *)pcmd;
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if (data[0] == ELS_CMD_LS_RJT) {
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lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
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"3277 QFPA LS_RJT x%x x%x\n",
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data[0], data[1]);
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goto out;
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}
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if (irsp->ulpStatus) {
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lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
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"6529 QFPA failed with status x%x x%x\n",
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irsp->ulpStatus, irsp->un.ulpWord[4]);
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goto out;
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}
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if (!vport->qfpa_res) {
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max_desc = FCELSSIZE / sizeof(*vport->qfpa_res);
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vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res),
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GFP_KERNEL);
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if (!vport->qfpa_res)
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goto out;
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}
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len = *((u32 *)(pcmd + 4));
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len = be32_to_cpu(len);
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memcpy(vport->qfpa_res, pcmd, len + 8);
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len = len / LPFC_PRIORITY_RANGE_DESC_SIZE;
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desc = (struct priority_range_desc *)(pcmd + 8);
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vmid_range = vport->vmid_priority.vmid_range;
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if (!vmid_range) {
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vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range),
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GFP_KERNEL);
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if (!vmid_range) {
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kfree(vport->qfpa_res);
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goto out;
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}
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vport->vmid_priority.vmid_range = vmid_range;
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}
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vport->vmid_priority.num_descriptors = len;
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for (i = 0; i < len; i++, vmid_range++, desc++) {
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lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS,
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"6539 vmid values low=%d, high=%d, qos=%d, "
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"local ve id=%d\n", desc->lo_range,
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desc->hi_range, desc->qos_priority,
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desc->local_ve_id);
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vmid_range->low = desc->lo_range << 1;
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if (desc->local_ve_id == QFPA_ODD_ONLY)
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vmid_range->low++;
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if (desc->qos_priority)
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vport->vmid_flag |= LPFC_VMID_QOS_ENABLED;
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vmid_range->qos = desc->qos_priority;
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vmid_range->high = desc->hi_range << 1;
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if ((desc->local_ve_id == QFPA_ODD_ONLY) ||
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(desc->local_ve_id == QFPA_EVEN_ODD))
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vmid_range->high++;
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}
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lpfc_init_cs_ctl_bitmap(vport);
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for (i = 0; i < vport->vmid_priority.num_descriptors; i++) {
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lpfc_vmid_set_cs_ctl_range(vport,
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vport->vmid_priority.vmid_range[i].low,
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vport->vmid_priority.vmid_range[i].high);
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}
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vport->vmid_flag |= LPFC_VMID_QFPA_CMPL;
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out:
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lpfc_els_free_iocb(phba, cmdiocb);
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lpfc_nlp_put(ndlp);
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}
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int lpfc_issue_els_qfpa(struct lpfc_vport *vport)
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{
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struct lpfc_hba *phba = vport->phba;
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struct lpfc_nodelist *ndlp;
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struct lpfc_iocbq *elsiocb;
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u8 *pcmd;
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int ret;
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ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
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if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
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return -ENXIO;
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elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp,
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ndlp->nlp_DID, ELS_CMD_QFPA);
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if (!elsiocb)
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return -ENOMEM;
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pcmd = (u8 *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
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*((u32 *)(pcmd)) = ELS_CMD_QFPA;
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pcmd += 4;
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elsiocb->iocb_cmpl = lpfc_cmpl_els_qfpa;
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elsiocb->context1 = lpfc_nlp_get(ndlp);
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if (!elsiocb->context1) {
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lpfc_els_free_iocb(vport->phba, elsiocb);
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return -ENXIO;
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}
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ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2);
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if (ret != IOCB_SUCCESS) {
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lpfc_els_free_iocb(phba, elsiocb);
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lpfc_nlp_put(ndlp);
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return -EIO;
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}
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vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED;
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return 0;
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}
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int
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lpfc_vmid_uvem(struct lpfc_vport *vport,
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struct lpfc_vmid *vmid, bool instantiated)
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{
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struct lpfc_vem_id_desc *vem_id_desc;
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struct lpfc_nodelist *ndlp;
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struct lpfc_iocbq *elsiocb;
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struct instantiated_ve_desc *inst_desc;
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struct lpfc_vmid_context *vmid_context;
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u8 *pcmd;
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u32 *len;
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int ret = 0;
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ndlp = lpfc_findnode_did(vport, Fabric_DID);
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if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
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return -ENXIO;
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vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL);
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if (!vmid_context)
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return -ENOMEM;
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elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2,
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ndlp, Fabric_DID, ELS_CMD_UVEM);
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if (!elsiocb)
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goto out;
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lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS,
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"3427 Host vmid %s %d\n",
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vmid->host_vmid, instantiated);
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vmid_context->vmp = vmid;
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vmid_context->nlp = ndlp;
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vmid_context->instantiated = instantiated;
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elsiocb->vmid_tag.vmid_context = vmid_context;
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pcmd = (u8 *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
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if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid))
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memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid,
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LPFC_COMPRESS_VMID_SIZE);
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*((u32 *)(pcmd)) = ELS_CMD_UVEM;
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len = (u32 *)(pcmd + 4);
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*len = cpu_to_be32(LPFC_UVEM_SIZE - 8);
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vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8);
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vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG);
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vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE);
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memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid,
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LPFC_COMPRESS_VMID_SIZE);
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inst_desc = (struct instantiated_ve_desc *)(pcmd + 32);
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inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG);
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inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE);
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memcpy(inst_desc->global_vem_id, vmid->host_vmid,
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LPFC_COMPRESS_VMID_SIZE);
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bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID);
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bf_set(lpfc_instantiated_local_id, inst_desc,
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vmid->un.cs_ctl_vmid);
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if (instantiated) {
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inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG);
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} else {
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inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG);
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lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid);
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}
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inst_desc->word6 = cpu_to_be32(inst_desc->word6);
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elsiocb->iocb_cmpl = lpfc_cmpl_els_uvem;
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elsiocb->context1 = lpfc_nlp_get(ndlp);
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if (!elsiocb->context1) {
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lpfc_els_free_iocb(vport->phba, elsiocb);
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goto out;
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}
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ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0);
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if (ret != IOCB_SUCCESS) {
|
||||
lpfc_els_free_iocb(vport->phba, elsiocb);
|
||||
lpfc_nlp_put(ndlp);
|
||||
goto out;
|
||||
}
|
||||
|
||||
return 0;
|
||||
out:
|
||||
kfree(vmid_context);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
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 || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
|
||||
ndlp = NULL;
|
||||
|
||||
prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list);
|
||||
if (!prsp)
|
||||
goto out;
|
||||
pcmd = prsp->virt;
|
||||
data = (u32 *)pcmd;
|
||||
if (data[0] == ELS_CMD_LS_RJT) {
|
||||
lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
|
||||
"4532 UVEM LS_RJT %x %x\n", data[0], data[1]);
|
||||
goto out;
|
||||
}
|
||||
if (irsp->ulpStatus) {
|
||||
lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
|
||||
"4533 UVEM error status %x: %x\n",
|
||||
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) {
|
||||
write_lock(&vport->vmid_lock);
|
||||
vmid->flag |= LPFC_VMID_REGISTERED;
|
||||
vmid->flag &= ~LPFC_VMID_REQ_REGISTER;
|
||||
write_unlock(&vport->vmid_lock);
|
||||
}
|
||||
|
||||
out:
|
||||
kfree(vmid_context);
|
||||
lpfc_els_free_iocb(phba, icmdiocb);
|
||||
lpfc_nlp_put(ndlp);
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user