From patchwork Mon Sep 28 05:50:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nilesh Javali X-Patchwork-Id: 11802917 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 20DEE618 for ; Mon, 28 Sep 2020 05:52:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 019DB20809 for ; Mon, 28 Sep 2020 05:52:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="JOThml/4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726518AbgI1Fw0 (ORCPT ); Mon, 28 Sep 2020 01:52:26 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:53718 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725287AbgI1Fw0 (ORCPT ); Mon, 28 Sep 2020 01:52:26 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 08S5oMrt007581 for ; Sun, 27 Sep 2020 22:52:25 -0700 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-type; s=pfpt0220; bh=+DT62aCWxIQeg6qpcOq/hQytbaIak/iMUY0DUWfi21s=; b=JOThml/4vbWsYglfLP93CuBT0FfpXxcqGtChbnYQmneRBWoIbrAzx90f1KAME4QXnmKw 42PYL3W++TWNl/ISBPI1yLHqqHIM13dT8U4UTApkO5O6DY8Q76wr6iaEWhL6JPlTWvF/ Pj+ONi66CuqLtD8m3u0rZ0ScrlfSeAwmezRfnG8dZ1aNQ9skpifi5O6dY42TWF+ZTyyc kVsXk4/k3zb1xUSzZ8a7mmpwQYUrKs40GpcC+j8wWy4ojV5zfhZ1l0ZeOZazstEykwuM tAZ/2XXlXlyUbgtTJgJAUCD7lb4ugOLFtL2uhoZlJeqXHJ42pU78yLxhgE9Z+CIvIfbJ EA== Received: from sc-exch03.marvell.com ([199.233.58.183]) by mx0a-0016f401.pphosted.com with ESMTP id 33teem5shg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Sun, 27 Sep 2020 22:52:25 -0700 Received: from SC-EXCH04.marvell.com (10.93.176.84) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sun, 27 Sep 2020 22:52:24 -0700 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by SC-EXCH04.marvell.com (10.93.176.84) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sun, 27 Sep 2020 22:52:24 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sun, 27 Sep 2020 22:52:24 -0700 Received: from dut1171.mv.qlogic.com (unknown [10.112.88.18]) by maili.marvell.com (Postfix) with ESMTP id 6F65B3F703F; Sun, 27 Sep 2020 22:52:24 -0700 (PDT) Received: from dut1171.mv.qlogic.com (localhost [127.0.0.1]) by dut1171.mv.qlogic.com (8.14.7/8.14.7) with ESMTP id 08S5qOaK004017; Sun, 27 Sep 2020 22:52:24 -0700 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id 08S5qOBI004016; Sun, 27 Sep 2020 22:52:24 -0700 From: Nilesh Javali To: CC: , Subject: [PATCH 4/7] qla2xxx: Fix reset of MPI firmware Date: Sun, 27 Sep 2020 22:50:20 -0700 Message-ID: <20200928055023.3950-5-njavali@marvell.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20200928055023.3950-1-njavali@marvell.com> References: <20200928055023.3950-1-njavali@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-28_05:2020-09-24,2020-09-28 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Arun Easi Normally, the MPI firmware is reset when an MPI dump is collected. If an unsaved MPI dump exists in the driver, though, an alternate mechanism is used. This mechanism, which was not fully correct, is not recommended and instead an MPI dump template walk is suggested to perform the MPI reset. To allow for the MPI dump template walk, extra space is reserved in the MPI dump buffer, which gets used only when there is already an MPI dump in place. Fixes: qla2xxx: Fix MPI failure AEN (8200) handling Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Reviewed-by: Himanshu Madhani --- drivers/scsi/qla2xxx/qla_attr.c | 10 +++++-- drivers/scsi/qla2xxx/qla_gbl.h | 1 - drivers/scsi/qla2xxx/qla_init.c | 2 ++ drivers/scsi/qla2xxx/qla_tmpl.c | 49 +++++++++------------------------ 4 files changed, 23 insertions(+), 39 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 1ee747ba4ecc..284b1cc91c80 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -157,6 +157,14 @@ qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj, vha->host_no); } break; + case 10: + if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) { + ql_log(ql_log_info, vha, 0x70e9, + "Issuing MPI firmware dump on host#%ld.\n", + vha->host_no); + ha->isp_ops->mpi_fw_dump(vha, 0); + } + break; } return count; } @@ -744,8 +752,6 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj, qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP); qla83xx_idc_unlock(vha, 0); break; - } else if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) { - qla27xx_reset_mpi(vha); } else { /* Make sure FC side is not in reset */ WARN_ON_ONCE(qla2x00_wait_for_hba_online(vha) != diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 9c4d077edf9e..26dc055d93b3 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -945,6 +945,5 @@ extern void qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp); /* nvme.c */ void qla_nvme_unregister_remote_port(struct fc_port *fcport); -void qla27xx_reset_mpi(scsi_qla_host_t *vha); void qla_handle_els_plogi_done(scsi_qla_host_t *vha, struct event_arg *ea); #endif /* _QLA_GBL_H */ diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 6b88b0e6d91a..9c57e29020ad 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3288,6 +3288,8 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha) j, fwdt->dump_size); dump_size += fwdt->dump_size; } + /* Add space for spare MPI fw dump. */ + dump_size += ha->fwdt[1].dump_size; } else { req_q_size = req->length * sizeof(request_t); rsp_q_size = rsp->length * sizeof(response_t); diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c index 591df89a4d13..0af3e7fa31f0 100644 --- a/drivers/scsi/qla2xxx/qla_tmpl.c +++ b/drivers/scsi/qla2xxx/qla_tmpl.c @@ -12,33 +12,6 @@ #define IOBASE(vha) IOBAR(ISPREG(vha)) #define INVALID_ENTRY ((struct qla27xx_fwdt_entry *)0xffffffffffffffffUL) -/* hardware_lock assumed held. */ -static void -qla27xx_write_remote_reg(struct scsi_qla_host *vha, - u32 addr, u32 data) -{ - struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24; - - ql_dbg(ql_dbg_misc, vha, 0xd300, - "%s: addr/data = %xh/%xh\n", __func__, addr, data); - - wrt_reg_dword(®->iobase_addr, 0x40); - wrt_reg_dword(®->iobase_c4, data); - wrt_reg_dword(®->iobase_window, addr); -} - -void -qla27xx_reset_mpi(scsi_qla_host_t *vha) -{ - ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd301, - "Entered %s.\n", __func__); - - qla27xx_write_remote_reg(vha, 0x104050, 0x40004); - qla27xx_write_remote_reg(vha, 0x10405c, 0x4); - - vha->hw->stat.num_mpi_reset++; -} - static inline void qla27xx_insert16(uint16_t value, void *buf, ulong *len) { @@ -1028,7 +1001,6 @@ void qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) { ulong flags = 0; - bool need_mpi_reset = true; #ifndef __CHECKER__ if (!hardware_locked) @@ -1036,14 +1008,20 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) #endif if (!vha->hw->mpi_fw_dump) { ql_log(ql_log_warn, vha, 0x02f3, "-> mpi_fwdump no buffer\n"); - } else if (vha->hw->mpi_fw_dumped) { - ql_log(ql_log_warn, vha, 0x02f4, - "-> MPI firmware already dumped (%p) -- ignoring request\n", - vha->hw->mpi_fw_dump); } else { struct fwdt *fwdt = &vha->hw->fwdt[1]; ulong len; void *buf = vha->hw->mpi_fw_dump; + bool walk_template_only = false; + + if (vha->hw->mpi_fw_dumped) { + /* Use the spare area for any further dumps. */ + buf += fwdt->dump_size; + walk_template_only = true; + ql_log(ql_log_warn, vha, 0x02f4, + "-> MPI firmware already dumped -- dump saving to temporary buffer %p.\n", + buf); + } ql_log(ql_log_warn, vha, 0x02f5, "-> fwdt1 running...\n"); if (!fwdt->template) { @@ -1058,9 +1036,10 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) ql_log(ql_log_warn, vha, 0x02f7, "-> fwdt1 fwdump residual=%+ld\n", fwdt->dump_size - len); - } else { - need_mpi_reset = false; } + vha->hw->stat.num_mpi_reset++; + if (walk_template_only) + goto bailout; vha->hw->mpi_fw_dump_len = len; vha->hw->mpi_fw_dumped = 1; @@ -1072,8 +1051,6 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) } bailout: - if (need_mpi_reset) - qla27xx_reset_mpi(vha); #ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);