From patchwork Tue Feb 27 16:41:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nilesh Javali X-Patchwork-Id: 776405 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) (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 7EBC6481DD for ; Tue, 27 Feb 2024 16:41:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.148.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709052116; cv=none; b=fCFzQZ3MhvyrgfQ1U8pMcOQhV/VHyd3M2GOuwhEVARD4pm2u8MFVlqpkgmyVGYzA+S0niEBrpGAMli9ESctZwVJVNVIYOA23Kk1Df5y839j1TvzOUQsfyH7fN9DzFjqfcUMqnIzmj4dTskDg2MQqfMsrHm9zTOj/GFAeVXZCGV4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709052116; c=relaxed/simple; bh=kodDldPE//Y2tYQLVBwmCXjNbycK/GCTEKrllFvitA0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=VC1OC5l+S+e1/GVlcauZkKrc+veho5LApNmpjK00TPf1OcoCWRMW27QWwYqYCfpIYs44CeT/WDAK7sBv0M15k1gGWXpdgsI0BB9UynMHgr5sVJIdSymQr1H6w9npLH1xg4k55GjIDRio+vWGIcbJ/gs9kwDwir00AHYXyrMDT2U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com; spf=pass smtp.mailfrom=marvell.com; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b=cjik5wfl; arc=none smtp.client-ip=67.231.148.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=marvell.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="cjik5wfl" Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 41RG2Wh5023975; Tue, 27 Feb 2024 08:41:51 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= pfpt0220; bh=7KDEPGjapA1lfxqlzguBJVxNNFuu2ncyhHyjPnE+EwI=; b=cji k5wflibYQntQ+rFQK7R+p9ipCdCwCUG7R6dzlr571yVLGADhrJb0UVqiDVLMU6AZ 71oWwufVbbK7n/EnPy2VQ7XhruQaYT0st9ISYm9OW/srCQbTWCIlAQG1m+bPiBBF fvUfvKhwJOx6mJnDgR7+hx/p2ze1pWiIIDfK9yjoRu+ykhw0KTXByiQaIDYEVnc9 R8va+akYjfaz0H/rOQaujnuWFOgy07pWRpxtGH8JWkYx/RYdjH5stwDKaSm9Hpto aY3LiDICwo5rt7Iiu0JFpxgLJHDXzCVSqngIAmlXhjf4szB84PxRjngBaOP//y1v T/WKL5jtzjhyZgY8XBw== Received: from dc5-exch05.marvell.com ([199.233.59.128]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3whjwdg5wv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Feb 2024 08:41:50 -0800 (PST) Received: from DC5-EXCH05.marvell.com (10.69.176.209) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Tue, 27 Feb 2024 08:41:40 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Tue, 27 Feb 2024 08:41:40 -0800 Received: from stgdev-a5u16.punelab.marvell.com (stgdev-a5u16.punelab.marvell.com [10.31.33.187]) by maili.marvell.com (Postfix) with ESMTP id 10EA73F70A9; Tue, 27 Feb 2024 08:41:37 -0800 (PST) From: Nilesh Javali To: CC: , , , , , Subject: [PATCH v2 01/11] qla2xxx: Prevent command send on chip reset Date: Tue, 27 Feb 2024 22:11:17 +0530 Message-ID: <20240227164127.36465-2-njavali@marvell.com> X-Mailer: git-send-email 2.23.1 In-Reply-To: <20240227164127.36465-1-njavali@marvell.com> References: <20240227164127.36465-1-njavali@marvell.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-GUID: -A5_QlmQDkYT-TTT6CqAFcn4-kqXctuV X-Proofpoint-ORIG-GUID: -A5_QlmQDkYT-TTT6CqAFcn4-kqXctuV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-27_03,2024-02-27_01,2023-05-22_02 From: Quinn Tran Currently IOCBs are allowed to push through while chip reset could be in progress. During chip reset the outstanding_cmds array is cleared twice. Once when any command on this array is returned as failed and secondly when the array is initialize to zero. If a command is inserted on to the array between these intervals, then the command will be lost. Check for chip reset before sending IOCB. Cc: stable@vger.kernel.org Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Reviewed-by: Himanshu Madhani --- drivers/scsi/qla2xxx/qla_init.c | 8 ++++++-- drivers/scsi/qla2xxx/qla_iocb.c | 33 +++++++++++++++++++++++++++++++-- 2 files changed, 37 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index a314cfc5b263..2f456e69da91 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1193,8 +1193,12 @@ int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport) return rval; done_free_sp: - /* ref: INIT */ - kref_put(&sp->cmd_kref, qla2x00_sp_release); + /* + * use qla24xx_async_gnl_sp_done to purge all pending gnl request. + * kref_put is call behind the scene. + */ + sp->u.iocb_cmd.u.mbx.in_mb[0] = MBS_COMMAND_ERROR; + qla24xx_async_gnl_sp_done(sp, QLA_COMMAND_ERROR); fcport->flags &= ~(FCF_ASYNC_SENT); done: fcport->flags &= ~(FCF_ASYNC_ACTIVE); diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index df90169f8244..0228c90b9fe8 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -2587,6 +2587,33 @@ void qla2x00_sp_release(struct kref *kref) { struct srb *sp = container_of(kref, struct srb, cmd_kref); + struct scsi_qla_host *vha = sp->vha; + + switch (sp->type) { + case SRB_CT_PTHRU_CMD: + /* GPSC & GFPNID use fcport->ct_desc.ct_sns for both req & rsp */ + if (sp->u.iocb_cmd.u.ctarg.req && + (!sp->fcport || + sp->u.iocb_cmd.u.ctarg.req != sp->fcport->ct_desc.ct_sns)) { + dma_free_coherent(&vha->hw->pdev->dev, + sp->u.iocb_cmd.u.ctarg.req_allocated_size, + sp->u.iocb_cmd.u.ctarg.req, + sp->u.iocb_cmd.u.ctarg.req_dma); + sp->u.iocb_cmd.u.ctarg.req = NULL; + } + if (sp->u.iocb_cmd.u.ctarg.rsp && + (!sp->fcport || + sp->u.iocb_cmd.u.ctarg.rsp != sp->fcport->ct_desc.ct_sns)) { + dma_free_coherent(&vha->hw->pdev->dev, + sp->u.iocb_cmd.u.ctarg.rsp_allocated_size, + sp->u.iocb_cmd.u.ctarg.rsp, + sp->u.iocb_cmd.u.ctarg.rsp_dma); + sp->u.iocb_cmd.u.ctarg.rsp = NULL; + } + break; + default: + break; + } sp->free(sp); } @@ -2692,7 +2719,7 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, */ sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); if (!sp) { - kfree(fcport); + qla2x00_free_fcport(fcport); ql_log(ql_log_info, vha, 0x70e6, "SRB allocation failed\n"); return -ENOMEM; @@ -2747,6 +2774,7 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, if (rval != QLA_SUCCESS) { /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); + qla2x00_free_fcport(fcport); return QLA_FUNCTION_FAILED; } @@ -2756,6 +2784,7 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, fcport->d_id.b.area, fcport->d_id.b.al_pa); wait_for_completion(&elsio->u.els_logo.comp); + qla2x00_free_fcport(fcport); /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); @@ -3918,7 +3947,7 @@ qla2x00_start_sp(srb_t *sp) return -EAGAIN; } - pkt = __qla2x00_alloc_iocbs(sp->qpair, sp); + pkt = qla2x00_alloc_iocbs_ready(sp->qpair, sp); if (!pkt) { rval = -EAGAIN; ql_log(ql_log_warn, vha, 0x700c,