From patchwork Wed Oct 13 12:44:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nilesh Javali X-Patchwork-Id: 12555815 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7644C433FE for ; Wed, 13 Oct 2021 12:45:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 950EC610FB for ; Wed, 13 Oct 2021 12:45:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234948AbhJMMrZ (ORCPT ); Wed, 13 Oct 2021 08:47:25 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:52914 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234157AbhJMMrQ (ORCPT ); Wed, 13 Oct 2021 08:47:16 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 19DAVHvf016935 for ; Wed, 13 Oct 2021 05:45:13 -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=7xgXX0noVdISFNBrvS2DDpAzGG1qUgzeyW9M60LEaIo=; b=Sap5vHF2+ng76yJlI8wGMbF2rbFP/zBh8ARzgzCFWtEAvNjLkDqhpCwvmtD1BOoLDcIl nXRXremPNokbQltIDGZFIc8PvrY2OU6FPOdoEIbD85tAL9yPywbjOMzgiQ5jDG3aiOFN zUWZ5D4MS+b3CqVYZB4mE0C44qyT/+Qkjbk3azLYS1c6pSz994Hr1y3j7OIdYnbGuAr1 IYJ7ovKsfJ4PqTUqkdTusM0VNCVL3ORdGMzjp9SqcekcafFMZ6vzJBdxmnl698wl7WkV NJFPPFOYgLnKQd7lwnzAL1WQNQ4/2N3EU+4NeOWJlSZ+AbcEKwSyNXW4YVk/JblX+vR4 kw== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com with ESMTP id 3bnwrxghgv-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Wed, 13 Oct 2021 05:45:13 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Wed, 13 Oct 2021 05:45:11 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.18 via Frontend Transport; Wed, 13 Oct 2021 05:45:11 -0700 Received: from dut1171.mv.qlogic.com (unknown [10.112.88.18]) by maili.marvell.com (Postfix) with ESMTP id 3E1923F7065; Wed, 13 Oct 2021 05:45:11 -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 19DCjBZB017218; Wed, 13 Oct 2021 05:45:11 -0700 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id 19DCjBwS017217; Wed, 13 Oct 2021 05:45:11 -0700 From: Nilesh Javali To: CC: , Subject: [PATCH 06/13] qla2xxx: edif: flush stale events and msgs on session down Date: Wed, 13 Oct 2021 05:44:15 -0700 Message-ID: <20211013124422.17151-7-njavali@marvell.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20211013124422.17151-1-njavali@marvell.com> References: <20211013124422.17151-1-njavali@marvell.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: IMnyv8k8cHajFRyBrZz5vPQkKo3I3OAa X-Proofpoint-GUID: IMnyv8k8cHajFRyBrZz5vPQkKo3I3OAa X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-13_05,2021-10-13_02,2020-04-07_01 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Quinn Tran On session down, driver will flush all stale messages and doorbell events. This prevents authentication application from having to process stale data. Signed-off-by: Karunakara Merugu Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali --- drivers/scsi/qla2xxx/qla_edif.c | 99 ++++++++++++++++++++++++++++++- drivers/scsi/qla2xxx/qla_gbl.h | 2 + drivers/scsi/qla2xxx/qla_target.c | 1 + 3 files changed, 101 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c index 33cdcdf9f511..b4eca966067a 100644 --- a/drivers/scsi/qla2xxx/qla_edif.c +++ b/drivers/scsi/qla2xxx/qla_edif.c @@ -1595,6 +1595,41 @@ qla_enode_stop(scsi_qla_host_t *vha) spin_unlock_irqrestore(&vha->pur_cinfo.pur_lock, flags); } +static void qla_enode_clear(scsi_qla_host_t *vha, port_id_t portid) +{ + unsigned long flags; + struct enode *e, *tmp; + struct purexevent *purex; + LIST_HEAD(enode_list); + + if (vha->pur_cinfo.enode_flags != ENODE_ACTIVE) { + ql_dbg(ql_dbg_edif, vha, 0x09102, + "%s enode not active\n", __func__); + return; + } + spin_lock_irqsave(&vha->pur_cinfo.pur_lock, flags); + list_for_each_entry_safe(e, tmp, &vha->pur_cinfo.head, list) { + purex = &e->u.purexinfo; + if (purex->pur_info.pur_sid.b24 == portid.b24) { + ql_dbg(ql_dbg_edif, vha, 0x911d, + "%s free ELS sid=%x. xchg %x, nb=%xh\n", + __func__, portid.b24, + purex->pur_info.pur_rx_xchg_address, + purex->pur_info.pur_bytes_rcvd); + + list_del_init(&e->list); + list_add_tail(&e->list, &enode_list); + } + } + + spin_unlock_irqrestore(&vha->pur_cinfo.pur_lock, flags); + + list_for_each_entry_safe(e, tmp, &enode_list, list) { + list_del_init(&e->list); + qla_enode_free(vha, e); + } +} + /* * allocate enode struct and populate buffer * returns: enode pointer with buffers @@ -1794,6 +1829,59 @@ qla_edb_node_free(scsi_qla_host_t *vha, struct edb_node *node) node->ntype = N_UNDEF; } +static void qla_edb_clear(scsi_qla_host_t *vha, port_id_t portid) +{ + unsigned long flags; + struct edb_node *e, *tmp; + port_id_t sid; + LIST_HEAD(edb_list); + + if (vha->e_dbell.db_flags != EDB_ACTIVE) { + /* doorbell list not enabled */ + ql_dbg(ql_dbg_edif, vha, 0x09102, + "%s doorbell not enabled\n", __func__); + return; + } + + /* grab lock so list doesn't move */ + spin_lock_irqsave(&vha->e_dbell.db_lock, flags); + + list_for_each_entry_safe(e, tmp, &vha->e_dbell.head, list) { + switch (e->ntype) { + case VND_CMD_AUTH_STATE_NEEDED: + case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN: + sid = e->u.plogi_did; + break; + case VND_CMD_AUTH_STATE_ELS_RCVD: + sid = e->u.els_sid; + break; + case VND_CMD_AUTH_STATE_SAUPDATE_COMPL: + /* app wants to see this */ + continue; + default: + ql_log(ql_log_warn, vha, 0x09102, + "%s unknown type: %x\n", __func__, e->ntype); + sid.b24 = 0; + break; + } + if (sid.b24 == portid.b24) { + ql_dbg(ql_dbg_edif, vha, 0x910f, + "%s Doorbell free : type=%x %p\n", + __func__, e->ntype, e); + list_del_init(&e->list); + list_add_tail(&e->list, &edb_list); + } + } + + spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); + + list_for_each_entry_safe(e, tmp, &edb_list, list) { + qla_edb_node_free(vha, e); + list_del_init(&e->list); + kfree(e); + } +} + /* function called when app is stopping */ void @@ -2380,7 +2468,7 @@ void qla24xx_auth_els(scsi_qla_host_t *vha, void **pkt, struct rsp_que **rsp) ql_dbg(ql_dbg_edif, host, 0x0910c, "%s COMPLETE purex->pur_info.pur_bytes_rcvd =%xh s:%06x -> d:%06x xchg=%xh\n", __func__, purex->pur_info.pur_bytes_rcvd, purex->pur_info.pur_sid.b24, - purex->pur_info.pur_did.b24, p->rx_xchg_addr); + purex->pur_info.pur_did.b24, purex->pur_info.pur_rx_xchg_address); qla_edb_eventcreate(host, VND_CMD_AUTH_STATE_ELS_RCVD, sid, 0, NULL); } @@ -3403,3 +3491,12 @@ void qla_edif_sess_down(struct scsi_qla_host *vha, struct fc_port *sess) qla2x00_post_aen_work(vha, FCH_EVT_PORT_OFFLINE, sess->d_id.b24); } } + +void qla_edif_clear_appdata(struct scsi_qla_host *vha, struct fc_port *fcport) +{ + if (!(fcport->flags & FCF_FCSP_DEVICE)) + return; + + qla_edb_clear(vha, fcport->d_id); + qla_enode_clear(vha, fcport->d_id); +} diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 8faaa0ec595d..76b89bd297dc 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -142,6 +142,8 @@ void qlt_chk_edif_rx_sa_delete_pending(scsi_qla_host_t *vha, fc_port_t *fcport, void qla2x00_release_all_sadb(struct scsi_qla_host *vha, struct fc_port *fcport); int qla_edif_process_els(scsi_qla_host_t *vha, struct bsg_job *bsgjob); void qla_edif_sess_down(struct scsi_qla_host *vha, struct fc_port *sess); +void qla_edif_clear_appdata(struct scsi_qla_host *vha, + struct fc_port *fcport); const char *sc_to_str(uint16_t cmd); /* diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index b3478ed9b12e..edc34e69d75b 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -1003,6 +1003,7 @@ void qlt_free_session_done(struct work_struct *work) "%s bypassing release_all_sadb\n", __func__); } + qla_edif_clear_appdata(vha, sess); qla_edif_sess_down(vha, sess); } qla2x00_mark_device_lost(vha, sess, 0);