From patchwork Tue Apr 12 22:20:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: James Smart X-Patchwork-Id: 563030 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60C71C433EF for ; Tue, 12 Apr 2022 23:34:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231265AbiDLXhN (ORCPT ); Tue, 12 Apr 2022 19:37:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55292 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231367AbiDLXcy (ORCPT ); Tue, 12 Apr 2022 19:32:54 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE2A2C6255 for ; Tue, 12 Apr 2022 15:20:32 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id w7so264293pfu.11 for ; Tue, 12 Apr 2022 15:20:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/0P028o0AFqLnPCSpIuCtRq68Kk5fPAE13aH1sTHe+4=; b=jPtd1CyGoIxgzjPXN2NMuyYpm/ElnQVarV82nJbPZCjVwcRVdHt1zTC8bvvTlJYwzf LymejCs+xuwgAEi78TmSWSXg72bLMsUm9Uf+UmeaK2KiHDoa0KGoRJceQ9VXT4qofFJL psCXR84sN96qv+9KYV5EY6qjUJU3psIXdWfEvwhgJJ7mWe9fRM6d81DNb56HBwp8oc+n T131bgIUY7ozscAOL1vL0DITTCwr43y3q9vBU8Hrpe3KIULNQB+dyoyEeOzbibpFFWnn A1Uh7TNimNrb+MkIGDeClDSNmGxBVOeLv3Jc3iCbDLsDhRojdDmd6Q/HscVMWEEvZtEZ 7Pig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/0P028o0AFqLnPCSpIuCtRq68Kk5fPAE13aH1sTHe+4=; b=u3CI+weAXY5YyBsUrMSXJcX8iQIVxQ40DWNi+L2RXiTGhM1KCXldKFjb8UtF/I1seT xthTgUyG48yoJxyHVCydzqZUUZHTCq2zRI/cluTMJzUyb+JcNfqeRNxi103Wc5rU28Xe 6pnyqqoitV37A8BdOv+nOmcZ/P1Y9MFX8Q2GN87fOI8SGD/MY+wX6Kq/Ez88VYO4rG0X 8Pu1LJsGCRTcmPOkRaXfMlswZnAybvwiaf+stg/oR3+MPg3iTRFWMqX39Nq1KumLFX+J uuzvALM5iUvLDfSQIeX8a3HR8osMkC9GQOuck9ecTRVM0EJxcQ7Hq287dzSTxR0RIAx5 q2/w== X-Gm-Message-State: AOAM533UZDDiG6ui9p8omRnPBknu79Zk+PJpp+cicTT45BmdanqjFDsY klM+zec/9y4yt2AovEYexswVk+Be66I= X-Google-Smtp-Source: ABdhPJzYnaQrLWAMA2+aJO9NfZ8eHzSfmXNG03vOzRVHFSt4LoSXUM8JF2yFkcmH47+XAG56wBk5Pw== X-Received: by 2002:a63:2b0d:0:b0:386:322:f05c with SMTP id r13-20020a632b0d000000b003860322f05cmr32845593pgr.11.1649802032013; Tue, 12 Apr 2022 15:20:32 -0700 (PDT) Received: from mail-lvn-it-01.broadcom.com ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id g15-20020a056a000b8f00b004fa9dbf27desm40429824pfj.55.2022.04.12.15.20.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Apr 2022 15:20:31 -0700 (PDT) From: James Smart To: linux-scsi@vger.kernel.org Cc: James Smart , Justin Tee Subject: [PATCH 22/26] lpfc: Change FA-PWWN detection methodology Date: Tue, 12 Apr 2022 15:20:04 -0700 Message-Id: <20220412222008.126521-23-jsmart2021@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20220412222008.126521-1-jsmart2021@gmail.com> References: <20220412222008.126521-1-jsmart2021@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Do not rely on vendor version field of the CSPs to determine if we are in a FA-PWWN environment. Instead, use the following procedure: First, during HBA initialization, driver does a READ_CONFIG to determine if FA-PWWN is configured on the HBA. A LPFC_FAWWPN_CONFIG hba_flag is set accordingly. Next, when the link comes up before the driver gets a link up event, the firmware logs into the fabric with FA-PWWN. If the fabric port does not support FA-PWWN, the driver will get a Misconfigured FA-WWN async event before the link up. A LPFC_FAWWPN_FABRIC hba_flag will be set accordingly. Finally, if the fabric supports FA-PWWN, the firmware will replace its CSPs WWN with the Fabric Assigned ones. Then after link up, the driver will retrieve the Fabric Assigned WWN when it does a READ_SPARAM mbox command. Co-developed-by: Justin Tee Signed-off-by: Justin Tee Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc.h | 5 +-- drivers/scsi/lpfc/lpfc_attr.c | 18 ++++++-- drivers/scsi/lpfc/lpfc_hbadisc.c | 8 ++++ drivers/scsi/lpfc/lpfc_hw.h | 2 - drivers/scsi/lpfc/lpfc_hw4.h | 3 ++ drivers/scsi/lpfc/lpfc_init.c | 72 ++++++++++++++++++++++++-------- drivers/scsi/lpfc/lpfc_sli.c | 1 + drivers/scsi/lpfc/lpfc_sli4.h | 3 ++ 8 files changed, 86 insertions(+), 26 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 96602a88b8ed..6a3dccfafec0 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -738,9 +738,8 @@ struct lpfc_vport { struct list_head rcv_buffer_list; unsigned long rcv_buffer_time_stamp; uint32_t vport_flag; -#define STATIC_VPORT 1 -#define FAWWPN_SET 2 -#define FAWWPN_PARAM_CHG 4 +#define STATIC_VPORT 0x1 +#define FAWWPN_PARAM_CHG 0x2 uint16_t fdmi_num_disc; uint32_t fdmi_hba_mask; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index ff99f7cdbefa..0d19e469386b 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -1120,12 +1120,22 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr, len += scnprintf(buf + len, PAGE_SIZE-len, " Private Loop\n"); } else { - if (vport->fc_flag & FC_FABRIC) - len += scnprintf(buf + len, PAGE_SIZE-len, - " Fabric\n"); - else + if (vport->fc_flag & FC_FABRIC) { + if (phba->sli_rev == LPFC_SLI_REV4 && + vport->port_type == LPFC_PHYSICAL_PORT && + phba->sli4_hba.fawwpn_flag & + LPFC_FAWWPN_FABRIC) + len += scnprintf(buf + len, + PAGE_SIZE - len, + " Fabric FA-PWWN\n"); + else + len += scnprintf(buf + len, + PAGE_SIZE - len, + " Fabric\n"); + } else { len += scnprintf(buf + len, PAGE_SIZE-len, " Point-2-Point\n"); + } } } diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index f2baf3bd8dd8..2d846256990c 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1183,6 +1183,7 @@ lpfc_port_link_failure(struct lpfc_vport *vport) void lpfc_linkdown_port(struct lpfc_vport *vport) { + struct lpfc_hba *phba = vport->phba; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) @@ -1200,6 +1201,13 @@ lpfc_linkdown_port(struct lpfc_vport *vport) vport->fc_flag &= ~FC_DISC_DELAYED; spin_unlock_irq(shost->host_lock); del_timer_sync(&vport->delayed_disc_tmo); + + if (phba->sli_rev == LPFC_SLI_REV4 && + vport->port_type == LPFC_PHYSICAL_PORT && + phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) { + /* Assume success on link up */ + phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC; + } } int diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 2f5537f57846..70c3dd7b7105 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -511,8 +511,6 @@ struct class_parms { uint8_t word3Reserved2; /* Fc Word 3, bit 0: 7 */ }; -#define FAPWWN_KEY_VENDOR 0x42524344 /*valid vendor version fawwpn key*/ - struct serv_parm { /* Structure is in Big Endian format */ struct csp cmn; struct lpfc_name portName; diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index 02e230ed6280..6d20c97762e9 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -2893,6 +2893,9 @@ struct lpfc_mbx_read_config { #define lpfc_mbx_rd_conf_extnts_inuse_SHIFT 31 #define lpfc_mbx_rd_conf_extnts_inuse_MASK 0x00000001 #define lpfc_mbx_rd_conf_extnts_inuse_WORD word1 +#define lpfc_mbx_rd_conf_fawwpn_SHIFT 30 +#define lpfc_mbx_rd_conf_fawwpn_MASK 0x00000001 +#define lpfc_mbx_rd_conf_fawwpn_WORD word1 #define lpfc_mbx_rd_conf_wcs_SHIFT 28 /* warning signaling */ #define lpfc_mbx_rd_conf_wcs_MASK 0x00000001 #define lpfc_mbx_rd_conf_wcs_WORD word1 diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index ae4ea4eccac9..c20d22949e13 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -350,8 +350,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) void lpfc_update_vport_wwn(struct lpfc_vport *vport) { - uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; - u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; + struct lpfc_hba *phba = vport->phba; /* * If the name is empty or there exists a soft name @@ -370,21 +369,32 @@ lpfc_update_vport_wwn(struct lpfc_vport *vport) */ if (vport->fc_portname.u.wwn[0] != 0 && memcmp(&vport->fc_portname, &vport->fc_sparam.portName, - sizeof(struct lpfc_name))) + sizeof(struct lpfc_name))) { vport->vport_flag |= FAWWPN_PARAM_CHG; - if (vport->fc_portname.u.wwn[0] == 0 || - (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || - vport->vport_flag & FAWWPN_SET) { - memcpy(&vport->fc_portname, &vport->fc_sparam.portName, - sizeof(struct lpfc_name)); - vport->vport_flag &= ~FAWWPN_SET; - if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) - vport->vport_flag |= FAWWPN_SET; + if (phba->sli_rev == LPFC_SLI_REV4 && + vport->port_type == LPFC_PHYSICAL_PORT && + phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) { + lpfc_printf_log(phba, KERN_INFO, + LOG_SLI | LOG_DISCOVERY | LOG_ELS, + "2701 FA-PWWN change WWPN from %llx to " + "%llx: vflag x%x fawwpn_flag x%x\n", + wwn_to_u64(vport->fc_portname.u.wwn), + wwn_to_u64 + (vport->fc_sparam.portName.u.wwn), + vport->vport_flag, + phba->sli4_hba.fawwpn_flag); + memcpy(&vport->fc_portname, &vport->fc_sparam.portName, + sizeof(struct lpfc_name)); + } } + + if (vport->fc_portname.u.wwn[0] == 0) + memcpy(&vport->fc_portname, &vport->fc_sparam.portName, + sizeof(struct lpfc_name)); else memcpy(&vport->fc_sparam.portName, &vport->fc_portname, - sizeof(struct lpfc_name)); + sizeof(struct lpfc_name)); } /** @@ -6542,12 +6552,15 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN: /* Misconfigured WWN. Reports that the SLI Port is configured * to use FA-WWN, but the attached device doesn’t support it. - * No driver action is required. * Event Data1 - N.A, Event Data2 - N.A + * This event only happens on the physical port. */ - lpfc_log_msg(phba, KERN_WARNING, LOG_SLI, - "2699 Misconfigured FA-WWN - Attached device does " - "not support FA-WWN\n"); + lpfc_log_msg(phba, KERN_WARNING, LOG_SLI | LOG_DISCOVERY, + "2699 Misconfigured FA-PWWN - Attached device " + "does not support FA-PWWN\n"); + phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_FABRIC; + memset(phba->pport->fc_portname.u.wwn, 0, + sizeof(struct lpfc_name)); break; case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE: /* EEPROM failure. No driver action is required */ @@ -8004,6 +8017,18 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) rc = lpfc_sli4_read_config(phba); if (unlikely(rc)) goto out_free_bsmbx; + + if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) { + /* Right now the link is down, if FA-PWWN is configured the + * firmware will try FLOGI before the driver gets a link up. + * If it fails, the driver should get a MISCONFIGURED async + * event which will clear this flag. The only notification + * the driver gets is if it fails, if it succeeds there is no + * notification given. Assume success. + */ + phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC; + } + rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); if (unlikely(rc)) goto out_free_bsmbx; @@ -9807,7 +9832,7 @@ lpfc_sli4_read_config(struct lpfc_hba *phba) struct lpfc_rsrc_desc_fcfcoe *desc; char *pdesc_0; uint16_t forced_link_speed; - uint32_t if_type, qmin; + uint32_t if_type, qmin, fawwpn; int length, i, rc = 0, rc2; pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); @@ -9849,10 +9874,23 @@ lpfc_sli4_read_config(struct lpfc_hba *phba) phba->sli4_hba.bbscn_params.word0 = rd_config->word8; } + fawwpn = bf_get(lpfc_mbx_rd_conf_fawwpn, rd_config); + + if (fawwpn) { + lpfc_printf_log(phba, KERN_INFO, + LOG_INIT | LOG_DISCOVERY, + "2702 READ_CONFIG: FA-PWWN is " + "configured on\n"); + phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_CONFIG; + } else { + phba->sli4_hba.fawwpn_flag = 0; + } + phba->sli4_hba.conf_trunk = bf_get(lpfc_mbx_rd_conf_trunk, rd_config); phba->sli4_hba.extents_in_use = bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); + phba->sli4_hba.max_cfg_param.max_xri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); /* Reduce resource usage in kdump environment */ diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index c4b00e188f0f..22fe7de63fb6 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -5265,6 +5265,7 @@ lpfc_sli_brdrestart_s4(struct lpfc_hba *phba) phba->pport->stopped = 0; phba->link_state = LPFC_INIT_START; phba->hba_flag = 0; + phba->sli4_hba.fawwpn_flag = 0; spin_unlock_irq(&phba->hbalock); memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index e0c25699f4b8..1ddad5b170a6 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -981,6 +981,9 @@ struct lpfc_sli4_hba { #define lpfc_conf_trunk_port3_nd_MASK 0x1 uint8_t flash_id; uint8_t asic_rev; + uint16_t fawwpn_flag; /* FA-WWPN support state */ +#define LPFC_FAWWPN_CONFIG 0x1 /* FA-PWWN is configured */ +#define LPFC_FAWWPN_FABRIC 0x2 /* FA-PWWN success with Fabric */ }; enum lpfc_sge_type {