From mboxrd@z Thu Jan 1 00:00:00 1970 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 727BDC433EF for ; Fri, 11 Feb 2022 22:34:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354146AbiBKWeZ (ORCPT ); Fri, 11 Feb 2022 17:34:25 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:34408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354075AbiBKWeW (ORCPT ); Fri, 11 Feb 2022 17:34:22 -0500 Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9AEC9D5D for ; Fri, 11 Feb 2022 14:34:14 -0800 (PST) Received: by mail-pl1-f176.google.com with SMTP id c3so5785563pls.5 for ; Fri, 11 Feb 2022 14:34:14 -0800 (PST) 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=u/qBRBLM1r2yTY4VduEFKfWhYTThTW41WBM80pT8DTc=; b=alQgAup4NSL0n7eBJWV/5ExxBdVYSMMWnVrrg9hSC1ckxzcftI1os8Wf9rOTWzxfG/ E2uBOuJ+7ymwsmsLZLn8M16b19ORgCeKuHYHAqfGFXBa6IHRnmOUJjGSibNlqlRQ9VrW lH8QVkBbTR0TCEi17V1SAkrfXgkNh+4wIDe+MW3ruePeIEYLHv3QL21q6CdWqJNk/pyl n5N348fHf8/DnsQse7FunFgfujqa78cdC38MZXHcicb4C/yRjgFk/KiE3foPe50gzR73 lO3IUtX/yaDGP4r/ogGiaKytac18dHToxtXboVKHOF90tbCNyijjUG4dP/uNKNqONZ/W 9TLQ== X-Gm-Message-State: AOAM530DxJ0TWw/oUxhkzGb4nDIALcxEKrR612pdhWgIsBky7gIxJjgn t+0h51sIyhPk6SLaeF02mes= X-Google-Smtp-Source: ABdhPJx9Mv5yPEcO0G8UCTxla5zG5H7QBUQdWQZLvUM20i/MTEwHGl25r5tH3zuUFIdESzCtzr8e5Q== X-Received: by 2002:a17:902:bb97:: with SMTP id m23mr3426256pls.151.1644618854023; Fri, 11 Feb 2022 14:34:14 -0800 (PST) Received: from asus.hsd1.ca.comcast.net ([2601:647:4000:d7:feaa:14ff:fe9d:6dbd]) by smtp.gmail.com with ESMTPSA id n13sm6296733pjq.13.2022.02.11.14.34.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Feb 2022 14:34:13 -0800 (PST) From: Bart Van Assche To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Bart Van Assche , Johannes Thumshirn , Hannes Reinecke , Himanshu Madhani , Kashyap Desai , Sumit Saxena , Shivasharan S , "James E.J. Bottomley" Subject: [PATCH v3 32/48] scsi: megasas: Stop using the SCSI pointer Date: Fri, 11 Feb 2022 14:32:31 -0800 Message-Id: <20220211223247.14369-33-bvanassche@acm.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220211223247.14369-1-bvanassche@acm.org> References: <20220211223247.14369-1-bvanassche@acm.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Set .cmd_size in the SCSI host template instead of using the SCSI pointer from struct scsi_cmnd. This patch prepares for removal of the SCSI pointer from struct scsi_cmnd. Reviewed-by: Johannes Thumshirn Reviewed-by: Hannes Reinecke Reviewed-by: Himanshu Madhani Signed-off-by: Bart Van Assche --- drivers/scsi/megaraid/megaraid_sas.h | 12 ++++++++++++ drivers/scsi/megaraid/megaraid_sas_base.c | 8 ++++---- drivers/scsi/megaraid/megaraid_sas_fusion.c | 15 ++++++++------- 3 files changed, 24 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 2c9d1b796475..611871ef15b5 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -18,6 +18,8 @@ #ifndef LSI_MEGARAID_SAS_H #define LSI_MEGARAID_SAS_H +#include + /* * MegaRAID SAS Driver meta data */ @@ -2594,6 +2596,16 @@ struct megasas_cmd { }; }; +struct megasas_cmd_priv { + void *cmd_priv; + u8 status; +}; + +static inline struct megasas_cmd_priv *megasas_priv(struct scsi_cmnd *cmd) +{ + return scsi_cmd_priv(cmd); +} + #define MAX_MGMT_ADAPTERS 1024 #define MAX_IOCTL_SGE 16 diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 82e1e24257bc..8bf72dbc33b7 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -1760,7 +1760,7 @@ megasas_build_and_issue_cmd(struct megasas_instance *instance, goto out_return_cmd; cmd->scmd = scmd; - scmd->SCp.ptr = (char *)cmd; + megasas_priv(scmd)->cmd_priv = cmd; /* * Issue the command to the FW @@ -2992,11 +2992,10 @@ megasas_dump_reg_set(void __iomem *reg_set) void megasas_dump_fusion_io(struct scsi_cmnd *scmd) { - struct megasas_cmd_fusion *cmd; + struct megasas_cmd_fusion *cmd = megasas_priv(scmd)->cmd_priv; union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; struct megasas_instance *instance; - cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr; instance = (struct megasas_instance *)scmd->device->host->hostdata; scmd_printk(KERN_INFO, scmd, @@ -3518,6 +3517,7 @@ static struct scsi_host_template megasas_template = { .mq_poll = megasas_blk_mq_poll, .change_queue_depth = scsi_change_queue_depth, .max_segment_size = 0xffffffff, + .cmd_size = sizeof(struct megasas_cmd_priv), }; /** @@ -3601,7 +3601,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, cmd->retry_for_fw_reset = 0; if (cmd->scmd) - cmd->scmd->SCp.ptr = NULL; + megasas_priv(cmd->scmd)->cmd_priv = NULL; switch (hdr->cmd) { case MFI_CMD_INVALID: diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index fc90a0a687b5..c72364864bf4 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -2915,7 +2915,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance, get_updated_dev_handle(instance, &fusion->load_balance_info[device_id], &io_info, local_map_ptr); - scp->SCp.Status |= MEGASAS_LOAD_BALANCE_FLAG; + megasas_priv(scp)->status |= MEGASAS_LOAD_BALANCE_FLAG; cmd->pd_r1_lb = io_info.pd_after_lb; if (instance->adapter_type >= VENTURA_SERIES) rctx_g35->span_arm = io_info.span_arm; @@ -2923,7 +2923,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance, rctx->span_arm = io_info.span_arm; } else - scp->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG; + megasas_priv(scp)->status &= ~MEGASAS_LOAD_BALANCE_FLAG; if (instance->adapter_type >= VENTURA_SERIES) cmd->r1_alt_dev_handle = io_info.r1_alt_dev_handle; @@ -3293,7 +3293,7 @@ megasas_build_io_fusion(struct megasas_instance *instance, io_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE; cmd->scmd = scp; - scp->SCp.ptr = (char *)cmd; + megasas_priv(scp)->cmd_priv = cmd; return 0; } @@ -3489,7 +3489,7 @@ megasas_complete_r1_command(struct megasas_instance *instance, if (instance->ldio_threshold && megasas_cmd_type(scmd_local) == READ_WRITE_LDIO) atomic_dec(&instance->ldio_outstanding); - scmd_local->SCp.ptr = NULL; + megasas_priv(scmd_local)->cmd_priv = NULL; megasas_return_cmd_fusion(instance, cmd); scsi_dma_unmap(scmd_local); megasas_sdev_busy_dec(instance, scmd_local); @@ -3613,12 +3613,13 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex, case MPI2_FUNCTION_SCSI_IO_REQUEST: /*Fast Path IO.*/ /* Update load balancing info */ if (fusion->load_balance_info && - (cmd_fusion->scmd->SCp.Status & + (megasas_priv(cmd_fusion->scmd)->status & MEGASAS_LOAD_BALANCE_FLAG)) { device_id = MEGASAS_DEV_INDEX(scmd_local); lbinfo = &fusion->load_balance_info[device_id]; atomic_dec(&lbinfo->scsi_pending_cmds[cmd_fusion->pd_r1_lb]); - cmd_fusion->scmd->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG; + megasas_priv(cmd_fusion->scmd)->status &= + ~MEGASAS_LOAD_BALANCE_FLAG; } fallthrough; /* and complete IO */ case MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST: /* LD-IO Path */ @@ -3630,7 +3631,7 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex, if (instance->ldio_threshold && (megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)) atomic_dec(&instance->ldio_outstanding); - scmd_local->SCp.ptr = NULL; + megasas_priv(scmd_local)->cmd_priv = NULL; megasas_return_cmd_fusion(instance, cmd_fusion); scsi_dma_unmap(scmd_local); megasas_sdev_busy_dec(instance, scmd_local);