From b5561a6b4a6a467f5a54b4c25117de19d26423d0 Mon Sep 17 00:00:00 2001 From: Gleb Chesnokov Date: Mon, 8 Aug 2022 18:40:53 +0300 Subject: [PATCH] qla2x00t-32gbit: edif: Reduce Initiator-Initiator thrashing This patch uses GFFID switch command to scan whether remote device is Target or Initiator mode. Based on that info, driver will not pass up Initiator info to authentication application. This helps reduce unnecessary stress for authentication application to deal with unused connections. Link: https://lore.kernel.org/r/20220607044627.19563-2-njavali@marvell.com Fixes: 7ebb336e45ef ("scsi: qla2xxx: edif: Add start + stop bsgs") Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen [ commit 9c40c36e75ff upstream ] --- qla2x00t-32gbit/qla_def.h | 2 + qla2x00t-32gbit/qla_edif.c | 32 +++++++++- qla2x00t-32gbit/qla_gbl.h | 3 +- qla2x00t-32gbit/qla_gs.c | 120 +++++++++++++++++++++++++++---------- qla2x00t-32gbit/qla_iocb.c | 2 +- 5 files changed, 121 insertions(+), 38 deletions(-) diff --git a/qla2x00t-32gbit/qla_def.h b/qla2x00t-32gbit/qla_def.h index deba1184f..7118ea46f 100644 --- a/qla2x00t-32gbit/qla_def.h +++ b/qla2x00t-32gbit/qla_def.h @@ -3250,6 +3250,8 @@ struct ct_sns_rsp { #define GFF_NVME_OFFSET 23 /* type = 28h */ struct { uint8_t fc4_features[128]; +#define FC4_FF_TARGET BIT_0 +#define FC4_FF_INITIATOR BIT_1 } gff_id; struct { uint8_t reserved; diff --git a/qla2x00t-32gbit/qla_edif.c b/qla2x00t-32gbit/qla_edif.c index 9e078d7f9..802f6369c 100644 --- a/qla2x00t-32gbit/qla_edif.c +++ b/qla2x00t-32gbit/qla_edif.c @@ -517,16 +517,28 @@ qla_edif_app_start(scsi_qla_host_t *vha, BSG_JOB_TYPE *bsg_job) if (atomic_read(&vha->loop_state) == LOOP_DOWN) break; - fcport->edif.app_started = 1; fcport->login_retry = vha->hw->login_retry_count; - /* no activity */ fcport->edif.app_stop = 0; + fcport->edif.app_sess_online = 0; + fcport->edif.app_started = 1; + + if (fcport->scan_state != QLA_FCPORT_FOUND) + continue; + + if (fcport->port_type == FCT_UNKNOWN && + !fcport->fc4_features) + rval = qla24xx_async_gffid(vha, fcport, true); + + if (!rval && !(fcport->fc4_features & FC4_FF_TARGET || + fcport->port_type & (FCT_TARGET|FCT_NVME_TARGET))) + continue; + + rval = 0; ql_dbg(ql_dbg_edif, vha, 0x911e, "%s wwpn %8phC calling qla_edif_reset_auth_wait\n", __func__, fcport->port_name); - fcport->edif.app_sess_online = 0; qlt_schedule_sess_for_deletion(fcport); qla_edif_sa_ctl_init(vha, fcport); } @@ -883,6 +895,20 @@ qla_edif_app_getfcinfo(scsi_qla_host_t *vha, BSG_JOB_TYPE *bsg_job) app_reply->ports[pcnt].rekey_count = fcport->edif.rekey_cnt; + if (fcport->scan_state != QLA_FCPORT_FOUND) + continue; + + if (fcport->port_type == FCT_UNKNOWN && !fcport->fc4_features) + rval = qla24xx_async_gffid(vha, fcport, true); + + if (!rval && + !(fcport->fc4_features & FC4_FF_TARGET || + fcport->port_type & + (FCT_TARGET | FCT_NVME_TARGET))) + continue; + + rval = 0; + app_reply->ports[pcnt].remote_type = VND_CMD_RTYPE_UNKNOWN; if (fcport->port_type & (FCT_NVME_TARGET | FCT_TARGET)) diff --git a/qla2x00t-32gbit/qla_gbl.h b/qla2x00t-32gbit/qla_gbl.h index 7c9a5795c..0d75c8ef6 100644 --- a/qla2x00t-32gbit/qla_gbl.h +++ b/qla2x00t-32gbit/qla_gbl.h @@ -339,6 +339,7 @@ extern int qla24xx_configure_prot_mode(srb_t *, uint16_t *); extern int qla24xx_issue_sa_replace_iocb(scsi_qla_host_t *vha, struct qla_work_evt *e); void qla2x00_sp_release(struct kref *kref); +void qla2x00_els_dcmd2_iocb_timeout(void *data); /* * Global Function Prototypes in qla_mbx.c source file. @@ -731,7 +732,7 @@ int qla24xx_async_gpsc(scsi_qla_host_t *, fc_port_t *); void qla24xx_handle_gpsc_event(scsi_qla_host_t *, struct event_arg *); int qla2x00_mgmt_svr_login(scsi_qla_host_t *); void qla24xx_handle_gffid_event(scsi_qla_host_t *vha, struct event_arg *ea); -int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport); +int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport, bool); int qla24xx_async_gpnft(scsi_qla_host_t *, u8, srb_t *); void qla24xx_async_gpnft_done(scsi_qla_host_t *, srb_t *); void qla24xx_async_gnnft_done(scsi_qla_host_t *, srb_t *); diff --git a/qla2x00t-32gbit/qla_gs.c b/qla2x00t-32gbit/qla_gs.c index e811de2f6..350d7c22a 100644 --- a/qla2x00t-32gbit/qla_gs.c +++ b/qla2x00t-32gbit/qla_gs.c @@ -3280,19 +3280,12 @@ done: return rval; } -void qla24xx_handle_gffid_event(scsi_qla_host_t *vha, struct event_arg *ea) -{ - fc_port_t *fcport = ea->fcport; - - qla24xx_post_gnl_work(vha, fcport); -} void qla24xx_async_gffid_sp_done(srb_t *sp, int res) { struct scsi_qla_host *vha = sp->vha; fc_port_t *fcport = sp->fcport; struct ct_sns_rsp *ct_rsp; - struct event_arg ea; uint8_t fc4_scsi_feat; uint8_t fc4_nvme_feat; @@ -3300,10 +3293,10 @@ void qla24xx_async_gffid_sp_done(srb_t *sp, int res) "Async done-%s res %x ID %x. %8phC\n", sp->name, res, fcport->d_id.b24, fcport->port_name); - fcport->flags &= ~FCF_ASYNC_SENT; - ct_rsp = &fcport->ct_desc.ct_sns->p.rsp; + ct_rsp = sp->u.iocb_cmd.u.ctarg.rsp; fc4_scsi_feat = ct_rsp->rsp.gff_id.fc4_features[GFF_FCP_SCSI_OFFSET]; fc4_nvme_feat = ct_rsp->rsp.gff_id.fc4_features[GFF_NVME_OFFSET]; + sp->rc = res; /* * FC-GS-7, 5.2.3.12 FC-4 Features - format @@ -3324,24 +3317,42 @@ void qla24xx_async_gffid_sp_done(srb_t *sp, int res) } } - memset(&ea, 0, sizeof(ea)); - ea.sp = sp; - ea.fcport = sp->fcport; - ea.rc = res; + if (sp->flags & SRB_WAKEUP_ON_COMP) { + complete(sp->comp); + } else { + if (sp->u.iocb_cmd.u.ctarg.req) { + 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; + } - qla24xx_handle_gffid_event(vha, &ea); - /* ref: INIT */ - kref_put(&sp->cmd_kref, qla2x00_sp_release); + if (sp->u.iocb_cmd.u.ctarg.rsp) { + 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; + } + + /* ref: INIT */ + kref_put(&sp->cmd_kref, qla2x00_sp_release); + /* we should not be here */ + dump_stack(); + } } /* Get FC4 Feature with Nport ID. */ -int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport) +int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport, bool wait) { int rval = QLA_FUNCTION_FAILED; struct ct_sns_req *ct_req; srb_t *sp; + DECLARE_COMPLETION_ONSTACK(comp); - if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT)) + /* this routine does not have handling for no wait */ + if (!vha->flags.online || !wait) return rval; /* ref: INIT */ @@ -3349,43 +3360,86 @@ int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport) if (!sp) return rval; - fcport->flags |= FCF_ASYNC_SENT; sp->type = SRB_CT_PTHRU_CMD; sp->name = "gffid"; sp->gen1 = fcport->rscn_gen; sp->gen2 = fcport->login_gen; qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2, qla24xx_async_gffid_sp_done); + sp->comp = ∁ + sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout; + + if (wait) + sp->flags = SRB_WAKEUP_ON_COMP; + + sp->u.iocb_cmd.u.ctarg.req_allocated_size = sizeof(struct ct_sns_pkt); + sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev, + sp->u.iocb_cmd.u.ctarg.req_allocated_size, + &sp->u.iocb_cmd.u.ctarg.req_dma, + GFP_KERNEL); + if (!sp->u.iocb_cmd.u.ctarg.req) { + ql_log(ql_log_warn, vha, 0xd041, + "%s: Failed to allocate ct_sns request.\n", + __func__); + goto done_free_sp; + } + + sp->u.iocb_cmd.u.ctarg.rsp_allocated_size = sizeof(struct ct_sns_pkt); + sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev, + sp->u.iocb_cmd.u.ctarg.rsp_allocated_size, + &sp->u.iocb_cmd.u.ctarg.rsp_dma, + GFP_KERNEL); + if (!sp->u.iocb_cmd.u.ctarg.req) { + ql_log(ql_log_warn, vha, 0xd041, + "%s: Failed to allocate ct_sns request.\n", + __func__); + goto done_free_sp; + } /* CT_IU preamble */ - ct_req = qla2x00_prep_ct_req(fcport->ct_desc.ct_sns, GFF_ID_CMD, - GFF_ID_RSP_SIZE); + ct_req = qla2x00_prep_ct_req(sp->u.iocb_cmd.u.ctarg.req, GFF_ID_CMD, GFF_ID_RSP_SIZE); ct_req->req.gff_id.port_id[0] = fcport->d_id.b.domain; ct_req->req.gff_id.port_id[1] = fcport->d_id.b.area; ct_req->req.gff_id.port_id[2] = fcport->d_id.b.al_pa; - sp->u.iocb_cmd.u.ctarg.req = fcport->ct_desc.ct_sns; - sp->u.iocb_cmd.u.ctarg.req_dma = fcport->ct_desc.ct_sns_dma; - sp->u.iocb_cmd.u.ctarg.rsp = fcport->ct_desc.ct_sns; - sp->u.iocb_cmd.u.ctarg.rsp_dma = fcport->ct_desc.ct_sns_dma; sp->u.iocb_cmd.u.ctarg.req_size = GFF_ID_REQ_SIZE; sp->u.iocb_cmd.u.ctarg.rsp_size = GFF_ID_RSP_SIZE; sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS; - ql_dbg(ql_dbg_disc, vha, 0x2132, - "Async-%s hdl=%x %8phC.\n", sp->name, - sp->handle, fcport->port_name); - rval = qla2x00_start_sp(sp); - if (rval != QLA_SUCCESS) - goto done_free_sp; - return rval; + if (rval != QLA_SUCCESS) { + rval = QLA_FUNCTION_FAILED; + goto done_free_sp; + } else { + ql_dbg(ql_dbg_disc, vha, 0x3074, + "Async-%s hdl=%x portid %06x\n", + sp->name, sp->handle, fcport->d_id.b24); + } + + wait_for_completion(sp->comp); + rval = sp->rc; + done_free_sp: + if (sp->u.iocb_cmd.u.ctarg.req) { + 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) { + 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; + } + /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); - fcport->flags &= ~FCF_ASYNC_SENT; return rval; } diff --git a/qla2x00t-32gbit/qla_iocb.c b/qla2x00t-32gbit/qla_iocb.c index 7a024f005..a7c1c5d2d 100644 --- a/qla2x00t-32gbit/qla_iocb.c +++ b/qla2x00t-32gbit/qla_iocb.c @@ -2835,7 +2835,7 @@ qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) sp->vha->qla_stats.control_requests++; } -static void +void qla2x00_els_dcmd2_iocb_timeout(void *data) { srb_t *sp = data;