From patchwork Tue Aug 4 02:13:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Muneendra Kumar X-Patchwork-Id: 258016 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.6 required=3.0 tests=BAYES_00, DATE_IN_PAST_06_12, DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7FAD2C433E0 for ; Tue, 4 Aug 2020 09:07:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C1CA22B40 for ; Tue, 4 Aug 2020 09:07:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="UNq9gRWb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729985AbgHDJHL (ORCPT ); Tue, 4 Aug 2020 05:07:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726240AbgHDJHK (ORCPT ); Tue, 4 Aug 2020 05:07:10 -0400 Received: from mail-qv1-xf44.google.com (mail-qv1-xf44.google.com [IPv6:2607:f8b0:4864:20::f44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D0D0C06174A for ; Tue, 4 Aug 2020 02:07:10 -0700 (PDT) Received: by mail-qv1-xf44.google.com with SMTP id dd12so13640488qvb.0 for ; Tue, 04 Aug 2020 02:07:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=seE4ONr+7EdS9zrrbYEtSWkvO++Ou+sZZmzU3Hetovk=; b=UNq9gRWbAmxxGwkdh6+e2vByII3Q5s8bZtImSPF+GIKGOFlZW1PRpvL2IpNMY5XSIb uZXB/NQfgIqLMCGloBZ1FXQG2qMiVfCQQ18wmQijXQKibiWUDHsFH9LLx/WhhILdSmRi Bsii51pnpi6/PpmH4OldReWI12+GF6+WInkBQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=seE4ONr+7EdS9zrrbYEtSWkvO++Ou+sZZmzU3Hetovk=; b=LBOd0fEO4AHw3IjSWgbJel+DK/l4dsexKkB95ylf9ffzWKh/xrlIm63uZ9Nxl/6+lX Rr44jrihTa7LU1NGBv8NHjIBgnfck3KhRfGbvNgyaeRxqluDDwHAor2Hdq1fhnSKDN2p b341amDkRHpPE9ozCgQ9Rj7FGgiEL2ZFL4rerv6yLx66m9qjkDgW7gYBGWzm6he0gLjC iP4h4QZ3bKhSNwP6/RllM/miVUH5k8rQQunKREjOP76NNJcl7w4BMg5k5X4oJrbK7RnP OjYKZtVhp00pd53UUKTABRqmsqQ35PNj3TL8Wl/XwQtdiKi2pA85CAMisYgYO5lQIPxH F93w== X-Gm-Message-State: AOAM530znblu9ykmp+a+7XkWilxfkvxvq3Ce7nYOYyBWixC0kkxDGyl/ oUGTqsuZDG4hHAN5snvCmE7dwV8tXEM= X-Google-Smtp-Source: ABdhPJyX4vLmig7e3mtlWvCDnnh47o8x8MP1jBqd3vtbB+MXriweWWQOn+V/8oTsckBOlP7/Zwrm5g== X-Received: by 2002:a0c:9b01:: with SMTP id b1mr5206187qve.174.1596532029789; Tue, 04 Aug 2020 02:07:09 -0700 (PDT) Received: from localhost.localdomain ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id 65sm19989407qkn.103.2020.08.04.02.07.06 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Aug 2020 02:07:09 -0700 (PDT) From: Muneendra To: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org Cc: pbonzini@redhat.com, emilne@redhat.com, mkumar@redhat.com, Gaurav Srivastava , James Smart , Muneendra Subject: [RFC 02/16] lpfc: vmid: Add the datastructure for supporting VMID in lpfc Date: Tue, 4 Aug 2020 07:43:02 +0530 Message-Id: <1596507196-27417-3-git-send-email-muneendra.kumar@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1596507196-27417-1-git-send-email-muneendra.kumar@broadcom.com> References: <1596507196-27417-1-git-send-email-muneendra.kumar@broadcom.com> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Gaurav Srivastava This patch adds the primary datastructures needed to implement VMID in lpfc driver. It maintains the capability, current state, hash table for the vmid/appid along with other information. Signed-off-by: Gaurav Srivastava Signed-off-by: James Smart Signed-off-by: Muneendra --- drivers/scsi/lpfc/lpfc.h | 98 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 549adfaa97ce..4258d05a7032 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -303,6 +303,64 @@ struct lpfc_stats { struct lpfc_hba; +#define LPFC_VMID_TIMER 300 /* timer interval in seconds. */ + +#define LPFC_MAX_VMID_SIZE 256 +#define LPFC_COMPRESS_VMID_SIZE 16 + +union lpfc_vmid_io_tag { + u32 app_id; /* App Id vmid */ + u8 cs_ctl_vmid; /* Priority tag vmid */ +}; + +#define JIFFIES_PER_HR (HZ * 60 * 60) + +struct lpfc_vmid { + u8 flag; +#define LPFC_VMID_SLOT_FREE 0x0 +#define LPFC_VMID_SLOT_USED 0x1 +#define LPFC_VMID_REQ_REGISTER 0x2 +#define LPFC_VMID_REGISTERED 0x4 +#define LPFC_VMID_DE_REGISTER 0x8 + u8 host_vmid[LPFC_MAX_VMID_SIZE]; + u8 compress_vmid[LPFC_COMPRESS_VMID_SIZE]; + union lpfc_vmid_io_tag un; + u64 io_rd_cnt; + u64 io_wr_cnt; + u8 vmid_len; + u8 delete_inactive; /* Delete if inactive flag 0 = no, 1 = yes */ + u32 hash_index; + u64 __percpu *last_io_time; +}; + +#define lpfc_vmid_is_type_priority_tag(vport)\ + (vport->vmid_priority_tagging ? 1 : 0) + +#define LPFC_VMID_HASH_SIZE 256 +#define LPFC_VMID_HASH_MASK 255 +#define LPFC_VMID_HASH_SHIFT 6 + +struct lpfc_vmid_context { + struct lpfc_vmid *vmp; + struct lpfc_nodelist *nlp; + u8 instantiated; +}; + +struct lpfc_vmid_priority_range { + u8 low; + u8 high; + u8 qos; +}; + +struct lpfc_vmid_priority_info { + u32 num_descriptors; + struct lpfc_vmid_priority_range *vmid_range; +}; + +#define QFPA_EVEN_ONLY 0x01 +#define QFPA_ODD_ONLY 0x02 +#define QFPA_EVEN_ODD 0x03 + enum discovery_state { LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */ LPFC_VPORT_FAILED = 1, /* vport has failed */ @@ -442,6 +500,9 @@ struct lpfc_vport { #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */ #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */ #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */ +#define WORKER_CHECK_INACTIVE_VMID 0x4000 /* hba: check inactive vmids */ +#define WORKER_CHECK_VMID_ISSUE_QFPA 0x8000 /* vport: Check if qfpa need */ + /* to issue */ struct timer_list els_tmofunc; struct timer_list delayed_disc_tmo; @@ -452,6 +513,8 @@ struct lpfc_vport { #define FC_LOADING 0x1 /* HBA in process of loading drvr */ #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ #define FC_ALLOW_FDMI 0x4 /* port is ready for FDMI requests */ +#define FC_ALLOW_VMID 0x8 /* Allow VMID IO's */ +#define FC_DEREGISTER_ALL_APP_ID 0x10 /* Deregister all vmid's */ /* Vport Config Parameters */ uint32_t cfg_scan_down; uint32_t cfg_lun_queue_depth; @@ -470,9 +533,36 @@ struct lpfc_vport { uint32_t cfg_tgt_queue_depth; uint32_t cfg_first_burst_size; uint32_t dev_loss_tmo_changed; + /* VMID parameters */ + u8 lpfc_vmid_host_uuid[LPFC_COMPRESS_VMID_SIZE]; + u32 max_vmid; /* maximum VMIDs allowed per port */ + u32 cur_vmid_cnt; /* Current VMID count */ +#define LPFC_MIN_VMID 4 +#define LPFC_MAX_VMID 255 + u32 vmid_inactivity_timeout; /* Time after which the VMID */ + /* deregisters from switch */ + u32 vmid_priority_tagging; +#define LPFC_VMID_PRIO_TAG_DISABLE 0 /* Disable */ +#define LPFC_VMID_PRIO_TAG_SUP_TARGETS 1 /* Allow supported targets only */ +#define LPFC_VMID_PRIO_TAG_ALL_TARGETS 2 /* Allow all targets */ + unsigned long *vmid_priority_range; +#define LPFC_VMID_MAX_PRIORITY_RANGE 256 +#define LPFC_VMID_PRIORITY_BITMAP_SIZE 32 + u8 vmid_flag; +#define LPFC_VMID_IN_USE 0x1 +#define LPFC_VMID_ISSUE_QFPA 0x2 +#define LPFC_VMID_QFPA_CMPL 0x4 +#define LPFC_VMID_QOS_ENABLED 0x8 +#define LPFC_VMID_TIMER_ENBLD 0x10 + struct fc_qfpa_res *qfpa_res; struct fc_vport *fc_vport; + struct lpfc_vmid *vmid; + struct lpfc_vmid *hash_table[LPFC_VMID_HASH_SIZE]; + rwlock_t vmid_lock; + struct lpfc_vmid_priority_info vmid_priority; + #ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct dentry *debug_disc_trc; struct dentry *debug_nodelist; @@ -925,6 +1015,13 @@ struct lpfc_hba { struct nvmet_fc_target_port *targetport; lpfc_vpd_t vpd; /* vital product data */ + u32 cfg_max_vmid; /* maximum VMIDs allowed per port */ + u32 cfg_vmid_app_header; +#define LPFC_VMID_APP_HEADER_DISABLE 0 +#define LPFC_VMID_APP_HEADER_ENABLE 1 + u32 cfg_vmid_priority_tagging; + u32 cfg_vmid_inactivity_timeout; /* Time after which the VMID */ + /* deregisters from switch */ struct pci_dev *pcidev; struct list_head work_list; uint32_t work_ha; /* Host Attention Bits for WT */ @@ -1168,6 +1265,7 @@ struct lpfc_hba { struct list_head ct_ev_waiters; struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX]; uint32_t ctx_idx; + struct timer_list inactive_vmid_poll; /* RAS Support */ struct lpfc_ras_fwlog ras_fwlog;