From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B8BE011706 for ; Mon, 11 Sep 2023 15:03:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3A011C433C8; Mon, 11 Sep 2023 15:03:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694444622; bh=y/D+TFyTcTerhyZlmK14hwgrVNTkaoYY0hjcVkU1TxY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EbnwOJHRtRo1Jr5MRGdM92KtodmJhOrcA1M1dTFmEHqGD2wnxk4DF4td/5W9pI1AD lbzHOeN8nyIhzPJGjObFQ5BVenojxx6GdXoZ8PueDQ2EifuqfTHquN1JsG/+mo8y/U iNzu2XNPVqln6I19BdOCeN//NQ1O4Oz4a26H3MN8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Justin Tee , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 6.1 058/600] scsi: lpfc: Remove reftag check in DIF paths Date: Mon, 11 Sep 2023 15:41:31 +0200 Message-ID: <20230911134635.339582949@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134633.619970489@linuxfoundation.org> References: <20230911134633.619970489@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Justin Tee [ Upstream commit 8eebf0e84f0614cebc7347f7bbccba4056d77d42 ] When preparing protection DIF I/O for DMA, the driver obtains reference tags from scsi_prot_ref_tag(). Previously, there was a wrong assumption that an all 0xffffffff value meant error and thus the driver failed the I/O. This patch removes the evaluation code and accepts whatever the upper layer returns. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20230803211932.155745-1-justintee8345@gmail.com Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/lpfc/lpfc_scsi.c | 20 +++----------------- 1 file changed, 3 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 7a1563564df7f..7aac9fc719675 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -109,8 +109,6 @@ lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, } } -#define LPFC_INVALID_REFTAG ((u32)-1) - /** * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread * @phba: The Hba for which this call is being executed. @@ -978,8 +976,6 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, sgpe = scsi_prot_sglist(sc); lba = scsi_prot_ref_tag(sc); - if (lba == LPFC_INVALID_REFTAG) - return 0; /* First check if we need to match the LBA */ if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { @@ -1560,8 +1556,6 @@ lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, /* extract some info from the scsi command for pde*/ reftag = scsi_prot_ref_tag(sc); - if (reftag == LPFC_INVALID_REFTAG) - goto out; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -1723,8 +1717,6 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, /* extract some info from the scsi command */ blksize = scsi_prot_interval(sc); reftag = scsi_prot_ref_tag(sc); - if (reftag == LPFC_INVALID_REFTAG) - goto out; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -1954,8 +1946,6 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, /* extract some info from the scsi command for pde*/ reftag = scsi_prot_ref_tag(sc); - if (reftag == LPFC_INVALID_REFTAG) - goto out; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -2155,8 +2145,6 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, /* extract some info from the scsi command */ blksize = scsi_prot_interval(sc); reftag = scsi_prot_ref_tag(sc); - if (reftag == LPFC_INVALID_REFTAG) - goto out; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); @@ -2748,8 +2736,6 @@ lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) src = (struct scsi_dif_tuple *)sg_virt(sgpe); start_ref_tag = scsi_prot_ref_tag(cmd); - if (start_ref_tag == LPFC_INVALID_REFTAG) - goto out; start_app_tag = src->app_tag; len = sgpe->length; while (src && protsegcnt) { @@ -3495,11 +3481,11 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, scsi_cmnd->sc_data_direction); lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, - "9084 Cannot setup S/G List for HBA" - "IO segs %d/%d SGL %d SCSI %d: %d %d\n", + "9084 Cannot setup S/G List for HBA " + "IO segs %d/%d SGL %d SCSI %d: %d %d %d\n", lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, - prot_group_type, num_sge); + prot_group_type, num_sge, ret); lpfc_cmd->seg_cnt = 0; lpfc_cmd->prot_seg_cnt = 0; -- 2.40.1