From patchwork Thu Oct 6 01:06:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Asutosh Das X-Patchwork-Id: 613360 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 7A832C433FE for ; Thu, 6 Oct 2022 01:07:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229968AbiJFBHB (ORCPT ); Wed, 5 Oct 2022 21:07:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229883AbiJFBGx (ORCPT ); Wed, 5 Oct 2022 21:06:53 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 020D563FF1; Wed, 5 Oct 2022 18:06:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1665018413; x=1696554413; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=vsJe5wuyPPaV7JJNWHbqU/kYTHaKLuMKJausR1YOpCw=; b=LYMjbwTanQ9B+E7KMTpH5ZkQCDeMUvgtGgHsT/I/HeRjxrDCNyY0NT+1 EH3rhayEiJWSNZVtZaqjW4jlL+gTXzh8EPTC4nuOfWygehjNbcOIP1blC k0xPWftihMw3VC71Dgqfe5jBTD9oKckgGl6JSu9XvZIH/oD+5LjPmnzHi M=; Received: from unknown (HELO ironmsg04-sd.qualcomm.com) ([10.53.140.144]) by alexa-out-sd-02.qualcomm.com with ESMTP; 05 Oct 2022 18:06:52 -0700 X-QCInternal: smtphost Received: from unknown (HELO nasanex01a.na.qualcomm.com) ([10.52.223.231]) by ironmsg04-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Oct 2022 18:06:52 -0700 Received: from asutoshd-linux1.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.29; Wed, 5 Oct 2022 18:06:52 -0700 From: Asutosh Das To: , , , , , CC: Asutosh Das , , , , , , , Subject: [PATCH v2 10/17] ufs: core: mcq: Use shared tags for MCQ mode Date: Wed, 5 Oct 2022 18:06:09 -0700 Message-ID: <51b792b524b59b805019d5a9c626fe059c47418c.1665017636.git.quic_asutoshd@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01a.na.qualcomm.com (10.52.223.231) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Enable shared taggs for MCQ. For UFS, this should not have a huge performance impact. It however simplifies the MCQ implementation and reuses most of the existing code in the issue and completion path. Also add multiple queue mapping to map_queue(). Co-developed-by: Can Guo Signed-off-by: Can Guo Signed-off-by: Asutosh Das --- drivers/ufs/core/ufs-mcq.c | 2 ++ drivers/ufs/core/ufshcd.c | 31 +++++++++++++++++-------------- 2 files changed, 19 insertions(+), 14 deletions(-) diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 1109182..4302722 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -364,6 +364,7 @@ int ufshcd_mcq_init(struct ufs_hba *hba) { int ret, i; struct ufs_hw_queue *hwq; + struct Scsi_Host *host = hba->host; ret = ufshcd_mcq_config_nr_queues(hba); if (ret) @@ -397,6 +398,7 @@ int ufshcd_mcq_init(struct ufs_hba *hba) /* Give dev_cmd_queue the minimal number of entries */ hba->dev_cmd_queue->max_entries = MAX_DEV_CMD_ENTRIES; + host->host_tagset = 1; return 0; } diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index d7f2baa0..93bb931 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2728,25 +2728,28 @@ static inline bool is_device_wlun(struct scsi_device *sdev) */ static int ufshcd_map_queues(struct Scsi_Host *shost) { - int i, ret; + int i, queue_offset = 0; + struct ufs_hba *hba = shost_priv(shost); + + if (!is_mcq_supported(hba)) { + hba->nr_queues[HCTX_TYPE_DEFAULT] = 1; + hba->nr_queues[HCTX_TYPE_READ] = 0; + hba->nr_queues[HCTX_TYPE_POLL] = 1; + hba->nr_hw_queues = 1; + } for (i = 0; i < shost->nr_maps; i++) { struct blk_mq_queue_map *map = &shost->tag_set.map[i]; - switch (i) { - case HCTX_TYPE_DEFAULT: - case HCTX_TYPE_POLL: - map->nr_queues = 1; - break; - case HCTX_TYPE_READ: - map->nr_queues = 0; + map->nr_queues = hba->nr_queues[i]; + if (!map->nr_queues) continue; - default: - WARN_ON_ONCE(true); - } - map->queue_offset = 0; - ret = blk_mq_map_queues(map); - WARN_ON_ONCE(ret); + map->queue_offset = queue_offset; + if (i == HCTX_TYPE_POLL && !is_mcq_supported(hba)) + map->queue_offset = 0; + + blk_mq_map_queues(map); + queue_offset += map->nr_queues; } return 0;