From patchwork Tue Aug 4 02:13:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Muneendra Kumar X-Patchwork-Id: 11700025 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 07EB514DD for ; Tue, 4 Aug 2020 09:07:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2402222B45 for ; Tue, 4 Aug 2020 09:07:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="dJxz8k3F" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729932AbgHDJHd (ORCPT ); Tue, 4 Aug 2020 05:07:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729985AbgHDJHd (ORCPT ); Tue, 4 Aug 2020 05:07:33 -0400 Received: from mail-qt1-x844.google.com (mail-qt1-x844.google.com [IPv6:2607:f8b0:4864:20::844]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E1EF7C061756 for ; Tue, 4 Aug 2020 02:07:32 -0700 (PDT) Received: by mail-qt1-x844.google.com with SMTP id s23so30328791qtq.12 for ; Tue, 04 Aug 2020 02:07:32 -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=fU1s2plBGtfkevtflW3ply4f5WZDVLmrUNmu2pRbOXw=; b=dJxz8k3FAhMIKUQMXKH9bkaPqwwSFh/Ym2lT5xFuEcNVMQjqVgpkIagiobH1P18HiO PTh7GejO8FzltwmjIGWEheCPFzZOSeSjFm94qyj+l8ymQhNCWfCTNeO20MbohzXuGQdI n/FG6Jqt2ZbQ7d+uYPQnlmKuFerR3eSIcUvVg= 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=fU1s2plBGtfkevtflW3ply4f5WZDVLmrUNmu2pRbOXw=; b=uXHXXp54zF3B3n0MOQc+o9MtouH7vMRGecEK1zThynSSV9bLHpOBP3Ipq4Gnjn02OV j6sixTmocbQEGbv0LB0qXpCJ/+a2lcCfsO1XFG6YGs/pQkL7+9fG2+1PMeTXPup327De saynm5RTsEq/zPyqvkpIIgpoKykBd8No63SaDmTt80WQKBL7pBuIjcCDLGWFDUlG9YXG pumRie6Gg6kHHzuanZmJapMo3BDtV2wPkDIYK+eih8grnX32MCB0a6QDSFEzGtA78JWC qreBkp7ky5IAo7c+gT5OrIdGjoXJ6vgOTVhS8LEoVG42a0RVJ5DIHazFmfFY8Yed0RNo PmKw== X-Gm-Message-State: AOAM532hlb5eHQp85M2b7elkG1BUVFtHtAH83XxCMzoSrp2rPCKipUle 9eF7Q3wgsLC+vSDg1n5oGDqzdzwJIdxQVDuyfE0QIk+zt4vo2WyJxMxOwEbk3ILq/XR8tGcjw2d YdEAVlt6r04BIdu9IioeuLOTEEwghZGZOT7ZqV87ULrtOcNdB/xthLsTuffE8vcmjor1SUoE4d4 yTC50of50= X-Google-Smtp-Source: ABdhPJwsgxyh5SKUL2/9BfdUwkyCOaHeglh8/s7zzAXQK1RpXkBWS+3dtSDf/hqi7E4zJEUO61uJDg== X-Received: by 2002:ac8:581:: with SMTP id a1mr20338464qth.247.1596532051670; Tue, 04 Aug 2020 02:07:31 -0700 (PDT) Received: from localhost.localdomain ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id 65sm19989407qkn.103.2020.08.04.02.07.28 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Aug 2020 02:07:31 -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 08/16] lpfc: vmid: vmid resource allocation Date: Tue, 4 Aug 2020 07:43:08 +0530 Message-Id: <1596507196-27417-9-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-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Gaurav Srivastava This patch allocates the resource for vmid and checks if the firmware supports the feature or not. Signed-off-by: Gaurav Srivastava Signed-off-by: James Smart Signed-off-by: Muneendra --- drivers/scsi/lpfc/lpfc_init.c | 64 +++++++++++++++++++++++++++++++++++ drivers/scsi/lpfc/lpfc_mbox.c | 6 ++++ drivers/scsi/lpfc/lpfc_sli.c | 9 +++++ 3 files changed, 79 insertions(+) diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index db768e28d3f9..2936a15f7441 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4284,6 +4284,62 @@ lpfc_get_wwpn(struct lpfc_hba *phba) return rol64(wwn, 32); } +/** + * lpfc_vmid_res_alloc - Allocates resources for VMID + * @phba: pointer to lpfc hba data structure. + * @vport: pointer to vport data structure + * + * This routine allocated the resources needed for the vmid. + * + * Return codes + * 0 on Succeess + * Non-0 on Failure + */ +u8 +lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport) +{ + u16 i; + + /* vmid feature is supported only on SLI4 */ + if (phba->sli_rev == LPFC_SLI_REV3) { + phba->cfg_vmid_app_header = 0; + phba->cfg_vmid_priority_tagging = 0; + } + + /* if enabled, then allocated the resources */ + if (lpfc_is_vmid_enabled(phba)) { + vport->vmid = + kmalloc_array(phba->cfg_max_vmid, sizeof(struct lpfc_vmid), + GFP_KERNEL); + if (!vport->vmid) + return 1; + + memset(vport->vmid, 0, + phba->cfg_max_vmid * sizeof(struct lpfc_vmid)); + + rwlock_init(&vport->vmid_lock); + + /* setting the VMID parameters for the vport */ + vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging; + vport->vmid_inactivity_timeout = + phba->cfg_vmid_inactivity_timeout; + vport->max_vmid = phba->cfg_max_vmid; + vport->cur_vmid_cnt = 0; + + for (i = 0; i < LPFC_VMID_HASH_SIZE; i++) + vport->hash_table[i] = NULL; + + vport->vmid_priority_range = bitmap_zalloc + (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL); + + if (!vport->vmid_priority_range) { + kfree(vport->vmid); + return 1; + } + } + return 0; +} + /** * lpfc_create_port - Create an FC port * @phba: pointer to lpfc hba data structure. @@ -4439,6 +4495,12 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) vport->port_type, shost->sg_tablesize, phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt); + /* allocate the resources for vmid */ + rc = lpfc_vmid_res_alloc(phba, vport); + + if (rc) + goto out; + /* Initialize all internally managed lists. */ INIT_LIST_HEAD(&vport->fc_nodes); INIT_LIST_HEAD(&vport->rcv_buffer_list); @@ -4463,6 +4525,8 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) return vport; out_put_shost: + kfree(vport->vmid); + bitmap_free(vport->vmid_priority_range); scsi_host_put(shost); out: return NULL; diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index 3414ffcb26fe..78a9b9baecf3 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -2100,6 +2100,12 @@ lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq) bf_set(lpfc_mbx_rq_ftr_rq_iaab, &mboxq->u.mqe.un.req_ftrs, 0); bf_set(lpfc_mbx_rq_ftr_rq_iaar, &mboxq->u.mqe.un.req_ftrs, 0); } + + /* Enable Application Services Header for apphedr VMID */ + if (phba->cfg_vmid_app_header) { + bf_set(lpfc_mbx_rq_ftr_rq_ashdr, &mboxq->u.mqe.un.req_ftrs, 1); + bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 1); + } return; } diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 8582b51b0613..bf006ec4ceb1 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -7558,6 +7558,15 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba) goto out_free_mbox; } + /* Disable vmid if app header is not supported */ + if (phba->cfg_vmid_app_header && !(bf_get(lpfc_mbx_rq_ftr_rsp_ashdr, + &mqe->un.req_ftrs))) { + bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 0); + phba->cfg_vmid_app_header = 0; + lpfc_printf_log(phba, KERN_DEBUG, LOG_SLI, + "1242 vmid feature not supported"); + } + /* * The port must support FCP initiator mode as this is the * only mode running in the host.