From patchwork Tue May 23 18:32:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Tee X-Patchwork-Id: 685288 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 9F142C7EE2D for ; Tue, 23 May 2023 18:22:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237017AbjEWSWe (ORCPT ); Tue, 23 May 2023 14:22:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235771AbjEWSWc (ORCPT ); Tue, 23 May 2023 14:22:32 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19854130 for ; Tue, 23 May 2023 11:22:30 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id 98e67ed59e1d1-25377d67da9so3542a91.0 for ; Tue, 23 May 2023 11:22:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1684866149; x=1687458149; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=gLULlYFvxj2hTCdmnUxw/843WxOyeStyjIrF2s2xfc4=; b=f7MhpTwFfAVFh0ilZ10lodhMf+8PL6WTkvv8ByRCZWWuNSGP4XUHuIpIxtk3TPbcKX b7y9vWaI9/OrwLC4IafKxKjWjNMqGRQT4pIpfHMixiQAfRwuyXx+gS3RbXYXIiUx2yIk mdZEYjb8ip79wtAHQH36b2Z+cr01aNjxQ1fZbNacUED2oz7g5l36WXQQDqmVUKtkxAdA VnKMkdxzIV66OUCOXyIH67MpifPKePpMKFNXFRIakHsElegB4asQdfIv1bUN1XV0xLWe b3zQw/wr7nFGjmSyNQafAFgcKKHOH1jKcUYNLdI9FAgRgPCzXAPOUGgIUR1kZQg2QFvu 4Jlw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684866149; x=1687458149; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=gLULlYFvxj2hTCdmnUxw/843WxOyeStyjIrF2s2xfc4=; b=OdNgGqqmhHC6KUa4s0MK+28e2pArKJ1eHD6ENk0A4YtYHV2owbF8HSpG0Hpbiv8M4X O2S45NmTZzVzgQqnH8SzMwTi5yKumyhamTzRchnAh1N4RpKy0L3f+EFXtVGzE8yTUDa0 FHS9IPJwy+jycvqbzBc+rTy0VWdGHavM2zo1OzMVK6vHu9QYsE/aecTMO3v4S54VBnmt vOxgjOosiXbDPLGyBvel4onei6ernkpkMOl55dAl4417lQxi7kRRsTVRH74Og+WKz+Z+ G+nmdx9aDmwBe2V++FmBXfJcEBVuSCgwry6sCeNk8t5cAQWX27Df5Ox10jVZhmj6WzOJ egIA== X-Gm-Message-State: AC+VfDxeduUbQ/DD1YcWVtim/gnxZcVH2SdhNYWsWQzWAkRDlc0XulXX e35clZdRQ8BTOBU4U2AHM4viBV5Aqx4= X-Google-Smtp-Source: ACHHUZ6FrpJtMxKkCATUfBP66Rmus+gZ85ck7PHBKVVgY7nemLb4qZ6uhcYYgJmiYK7GJZEE8rt74g== X-Received: by 2002:a17:902:dac6:b0:1af:b80a:b964 with SMTP id q6-20020a170902dac600b001afb80ab964mr56833plx.5.1684866149220; Tue, 23 May 2023 11:22:29 -0700 (PDT) Received: from dhcp-10-231-55-133.dhcp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id w10-20020a170902e88a00b001a687c505e9sm7070870plg.237.2023.05.23.11.22.28 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 May 2023 11:22:28 -0700 (PDT) From: Justin Tee To: linux-scsi@vger.kernel.org Cc: jsmart2021@gmail.com, justin.tee@broadcom.com, Justin Tee Subject: [PATCH 6/9] lpfc: Clean up SLI-4 CQE status handling Date: Tue, 23 May 2023 11:32:03 -0700 Message-Id: <20230523183206.7728-7-justintee8345@gmail.com> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20230523183206.7728-1-justintee8345@gmail.com> References: <20230523183206.7728-1-justintee8345@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org There is mishandling of SLI-4 CQE status values larger than what is allowed by the LPFC_IOCB_STATUS_MASK of 4 bits. The LPFC_IOCB_STATUS_MASK is a leftover SLI-3 construct and serves no purpose in SLI-4 path. Remove the LPFC_IOCB_STATUS_MASK and clean up general CQE status handling in SLI-4 completion paths. Signed-off-by: Justin Tee --- drivers/scsi/lpfc/lpfc.h | 2 -- drivers/scsi/lpfc/lpfc_hw4.h | 3 -- drivers/scsi/lpfc/lpfc_nvme.c | 17 +++++---- drivers/scsi/lpfc/lpfc_nvmet.c | 4 +-- drivers/scsi/lpfc/lpfc_scsi.c | 65 +++++++++++++++------------------- 5 files changed, 41 insertions(+), 50 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 5e3a93d13a91..dcb87bb5f88b 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -932,8 +932,6 @@ struct lpfc_hba { void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *, struct lpfc_iocbq *); int (*lpfc_hba_down_post)(struct lpfc_hba *phba); - void (*lpfc_scsi_cmd_iocb_cmpl) - (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); /* MBOX interface function jump table entries */ int (*lpfc_sli_issue_mbox) diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index 082f8a109e55..5d4f9f27084d 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -395,9 +395,6 @@ struct lpfc_cqe { #define CQE_STATUS_NEED_BUFF_ENTRY 0xf #define CQE_STATUS_DI_ERROR 0x16 -/* Used when mapping CQE status to IOCB */ -#define LPFC_IOCB_STATUS_MASK 0xf - /* Status returned by hardware (valid only if status = CQE_STATUS_SUCCESS). */ #define CQE_HW_STATUS_NO_ERR 0x0 #define CQE_HW_STATUS_UNDERRUN 0x1 diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index 82730a89ecb5..8db7cb99903d 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -310,20 +310,20 @@ lpfc_nvme_handle_lsreq(struct lpfc_hba *phba, * for the LS request. **/ void -__lpfc_nvme_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_vport *vport, +__lpfc_nvme_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_vport *vport, struct lpfc_iocbq *cmdwqe, struct lpfc_wcqe_complete *wcqe) { struct nvmefc_ls_req *pnvme_lsreq; struct lpfc_dmabuf *buf_ptr; struct lpfc_nodelist *ndlp; - uint32_t status; + int status; pnvme_lsreq = cmdwqe->context_un.nvme_lsreq; ndlp = cmdwqe->ndlp; buf_ptr = cmdwqe->bpl_dmabuf; - status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK; + status = bf_get(lpfc_wcqe_c_status, wcqe); lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, "6047 NVMEx LS REQ x%px cmpl DID %x Xri: %x " @@ -343,14 +343,17 @@ __lpfc_nvme_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_vport *vport, kfree(buf_ptr); cmdwqe->bpl_dmabuf = NULL; } - if (pnvme_lsreq->done) + if (pnvme_lsreq->done) { + if (status != CQE_STATUS_SUCCESS) + status = -ENXIO; pnvme_lsreq->done(pnvme_lsreq, status); - else + } else { lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, "6046 NVMEx cmpl without done call back? " "Data x%px DID %x Xri: %x status %x\n", pnvme_lsreq, ndlp ? ndlp->nlp_DID : 0, cmdwqe->sli4_xritag, status); + } if (ndlp) { lpfc_nlp_put(ndlp); cmdwqe->ndlp = NULL; @@ -367,7 +370,7 @@ lpfc_nvme_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, uint32_t status; struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl; - status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK; + status = bf_get(lpfc_wcqe_c_status, wcqe); if (vport->localport) { lport = (struct lpfc_nvme_lport *)vport->localport->private; @@ -1040,7 +1043,7 @@ lpfc_nvme_io_cmd_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, nCmd->rcv_rsplen = LPFC_NVME_ERSP_LEN; nCmd->transferred_length = nCmd->payload_length; } else { - lpfc_ncmd->status = (status & LPFC_IOCB_STATUS_MASK); + lpfc_ncmd->status = status; lpfc_ncmd->result = (wcqe->parameter & IOERR_PARAM_MASK); /* For NVME, the only failure path that results in an diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index 7517dd55fe91..ce201465dc6f 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -300,7 +300,7 @@ __lpfc_nvme_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, struct nvmefc_ls_rsp *ls_rsp = &axchg->ls_rsp; uint32_t status, result; - status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK; + status = bf_get(lpfc_wcqe_c_status, wcqe); result = wcqe->parameter; if (axchg->state != LPFC_NVME_STE_LS_RSP || axchg->entry_cnt != 2) { @@ -350,7 +350,7 @@ lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, if (!phba->targetport) goto finish; - status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK; + status = bf_get(lpfc_wcqe_c_status, wcqe); result = wcqe->parameter; tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 49aa86c477c6..a62e091894f6 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -4026,7 +4026,7 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, struct lpfc_fast_path_event *fast_path_evt; struct Scsi_Host *shost; u32 logit = LOG_FCP; - u32 status, idx; + u32 idx; u32 lat; u8 wait_xb_clr = 0; @@ -4061,8 +4061,7 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, #endif shost = cmd->device->host; - status = bf_get(lpfc_wcqe_c_status, wcqe); - lpfc_cmd->status = (status & LPFC_IOCB_STATUS_MASK); + lpfc_cmd->status = bf_get(lpfc_wcqe_c_status, wcqe); lpfc_cmd->result = (wcqe->parameter & IOERR_PARAM_MASK); lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY; @@ -4104,11 +4103,6 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, } #endif if (unlikely(lpfc_cmd->status)) { - if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && - (lpfc_cmd->result & IOERR_DRVR_MASK)) - lpfc_cmd->status = IOSTAT_DRIVER_REJECT; - else if (lpfc_cmd->status >= IOSTAT_CNT) - lpfc_cmd->status = IOSTAT_DEFAULT; if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && !lpfc_cmd->fcp_rsp->rspStatus3 && (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && @@ -4133,16 +4127,16 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, } switch (lpfc_cmd->status) { - case IOSTAT_SUCCESS: + case CQE_STATUS_SUCCESS: cmd->result = DID_OK << 16; break; - case IOSTAT_FCP_RSP_ERROR: + case CQE_STATUS_FCP_RSP_FAILURE: lpfc_handle_fcp_err(vport, lpfc_cmd, pwqeIn->wqe.fcp_iread.total_xfer_len - wcqe->total_data_placed); break; - case IOSTAT_NPORT_BSY: - case IOSTAT_FABRIC_BSY: + case CQE_STATUS_NPORT_BSY: + case CQE_STATUS_FABRIC_BSY: cmd->result = DID_TRANSPORT_DISRUPTED << 16; fast_path_evt = lpfc_alloc_fast_evt(phba); if (!fast_path_evt) @@ -4185,7 +4179,27 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, wcqe->total_data_placed, lpfc_cmd->cur_iocbq.iocb.ulpIoTag); break; - case IOSTAT_REMOTE_STOP: + case CQE_STATUS_DI_ERROR: + if (bf_get(lpfc_wcqe_c_bg_edir, wcqe)) + lpfc_cmd->result = IOERR_RX_DMA_FAILED; + else + lpfc_cmd->result = IOERR_TX_DMA_FAILED; + lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_BG, + "9048 DI Error xri x%x status x%x DI ext " + "status x%x data placed x%x\n", + lpfc_cmd->cur_iocbq.sli4_xritag, + lpfc_cmd->status, wcqe->parameter, + wcqe->total_data_placed); + if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { + /* BG enabled cmd. Parse BG error */ + lpfc_parse_bg_err(phba, lpfc_cmd, pwqeOut); + break; + } + cmd->result = DID_ERROR << 16; + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9040 DI Error on unprotected cmd\n"); + break; + case CQE_STATUS_REMOTE_STOP: if (ndlp) { /* This I/O was aborted by the target, we don't * know the rxid and because we did not send the @@ -4196,7 +4210,7 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, 0, 0); } fallthrough; - case IOSTAT_LOCAL_REJECT: + case CQE_STATUS_LOCAL_REJECT: if (lpfc_cmd->result & IOERR_DRVR_MASK) lpfc_cmd->status = IOSTAT_DRIVER_REJECT; if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || @@ -4217,24 +4231,6 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, cmd->result = DID_TRANSPORT_DISRUPTED << 16; break; } - if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || - lpfc_cmd->result == IOERR_TX_DMA_FAILED) && - status == CQE_STATUS_DI_ERROR) { - if (scsi_get_prot_op(cmd) != - SCSI_PROT_NORMAL) { - /* - * This is a response for a BG enabled - * cmd. Parse BG error - */ - lpfc_parse_bg_err(phba, lpfc_cmd, pwqeOut); - break; - } else { - lpfc_printf_vlog(vport, KERN_WARNING, - LOG_BG, - "9040 non-zero BGSTAT " - "on unprotected cmd\n"); - } - } lpfc_printf_vlog(vport, KERN_WARNING, logit, "9036 Local Reject FCP cmd x%x failed" " <%d/%lld> " @@ -4253,10 +4249,8 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, lpfc_cmd->cur_iocbq.iocb.ulpIoTag); fallthrough; default: - if (lpfc_cmd->status >= IOSTAT_CNT) - lpfc_cmd->status = IOSTAT_DEFAULT; cmd->result = DID_ERROR << 16; - lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, + lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, "9037 FCP Completion Error: xri %x " "status x%x result x%x [x%x] " "placed x%x\n", @@ -5010,7 +5004,6 @@ lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) return -ENODEV; } phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; - phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; return 0; }