diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_target.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_target.c | 1149 |
1 files changed, 910 insertions, 239 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 83a8f7a9ec7..e632e14180c 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -10,7 +10,7 @@ * * Forward port and refactoring to modern qla2xxx and target/configfs * - * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org> + * Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -104,7 +104,6 @@ static void qlt_reject_free_srr_imm(struct scsi_qla_host *ha, /* * Global Variables */ -static struct kmem_cache *qla_tgt_cmd_cachep; static struct kmem_cache *qla_tgt_mgmt_cmd_cachep; static mempool_t *qla_tgt_mgmt_cmd_mempool; static struct workqueue_struct *qla_tgt_wq; @@ -182,6 +181,11 @@ struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha, void qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, struct atio_from_isp *atio) { + ql_dbg(ql_dbg_tgt, vha, 0xe072, + "%s: qla_target(%d): type %x ox_id %04x\n", + __func__, vha->vp_idx, atio->u.raw.entry_type, + be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); + switch (atio->u.raw.entry_type) { case ATIO_TYPE7: { @@ -236,6 +240,10 @@ void qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, void qlt_response_pkt_all_vps(struct scsi_qla_host *vha, response_t *pkt) { switch (pkt->entry_type) { + case CTIO_CRC2: + ql_dbg(ql_dbg_tgt, vha, 0xe073, + "qla_target(%d):%s: CRC2 Response pkt\n", + vha->vp_idx, __func__); case CTIO_TYPE7: { struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; @@ -430,13 +438,8 @@ static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd) } ql_dbg(ql_dbg_tgt, vha, 0xe047, - "scsi(%ld): resetting (session %p from port " - "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x, " - "mcmd %x, loop_id %d)\n", vha->host_no, sess, - sess->port_name[0], sess->port_name[1], - sess->port_name[2], sess->port_name[3], - sess->port_name[4], sess->port_name[5], - sess->port_name[6], sess->port_name[7], + "scsi(%ld): resetting (session %p from port %8phC mcmd %x, " + "loop_id %d)\n", vha->host_no, sess, sess->port_name, mcmd, loop_id); lun = a->u.isp24.fcp_cmnd.lun; @@ -467,21 +470,16 @@ static void qlt_schedule_sess_for_deletion(struct qla_tgt_sess *sess, sess->expires = jiffies + dev_loss_tmo * HZ; ql_dbg(ql_dbg_tgt, sess->vha, 0xe048, - "qla_target(%d): session for port %02x:%02x:%02x:" - "%02x:%02x:%02x:%02x:%02x (loop ID %d) scheduled for " + "qla_target(%d): session for port %8phC (loop ID %d) scheduled for " "deletion in %u secs (expires: %lu) immed: %d\n", - sess->vha->vp_idx, - sess->port_name[0], sess->port_name[1], - sess->port_name[2], sess->port_name[3], - sess->port_name[4], sess->port_name[5], - sess->port_name[6], sess->port_name[7], - sess->loop_id, dev_loss_tmo, sess->expires, immediate); + sess->vha->vp_idx, sess->port_name, sess->loop_id, dev_loss_tmo, + sess->expires, immediate); if (immediate) schedule_delayed_work(&tgt->sess_del_work, 0); else schedule_delayed_work(&tgt->sess_del_work, - jiffies - sess->expires); + sess->expires - jiffies); } /* ha->hardware_lock supposed to be held on entry */ @@ -560,13 +558,14 @@ static void qlt_del_sess_work_fn(struct delayed_work *work) struct scsi_qla_host *vha = tgt->vha; struct qla_hw_data *ha = vha->hw; struct qla_tgt_sess *sess; - unsigned long flags; + unsigned long flags, elapsed; spin_lock_irqsave(&ha->hardware_lock, flags); while (!list_empty(&tgt->del_sess_list)) { sess = list_entry(tgt->del_sess_list.next, typeof(*sess), del_list_entry); - if (time_after_eq(jiffies, sess->expires)) { + elapsed = jiffies; + if (time_after_eq(elapsed, sess->expires)) { qlt_undelete_sess(sess); ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004, @@ -576,7 +575,7 @@ static void qlt_del_sess_work_fn(struct delayed_work *work) ha->tgt.tgt_ops->put_sess(sess); } else { schedule_delayed_work(&tgt->sess_del_work, - jiffies - sess->expires); + sess->expires - elapsed); break; } } @@ -599,7 +598,7 @@ static struct qla_tgt_sess *qlt_create_sess( /* Check to avoid double sessions */ spin_lock_irqsave(&ha->hardware_lock, flags); - list_for_each_entry(sess, &ha->tgt.qla_tgt->sess_list, + list_for_each_entry(sess, &vha->vha_tgt.qla_tgt->sess_list, sess_list_entry) { if (!memcmp(sess->port_name, fcport->port_name, WWN_SIZE)) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf005, @@ -630,17 +629,13 @@ static struct qla_tgt_sess *qlt_create_sess( sess = kzalloc(sizeof(*sess), GFP_KERNEL); if (!sess) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04a, - "qla_target(%u): session allocation failed, " - "all commands from port %02x:%02x:%02x:%02x:" - "%02x:%02x:%02x:%02x will be refused", vha->vp_idx, - fcport->port_name[0], fcport->port_name[1], - fcport->port_name[2], fcport->port_name[3], - fcport->port_name[4], fcport->port_name[5], - fcport->port_name[6], fcport->port_name[7]); + "qla_target(%u): session allocation failed, all commands " + "from port %8phC will be refused", vha->vp_idx, + fcport->port_name); return NULL; } - sess->tgt = ha->tgt.qla_tgt; + sess->tgt = vha->vha_tgt.qla_tgt; sess->vha = vha; sess->s_id = fcport->d_id; sess->loop_id = fcport->loop_id; @@ -648,7 +643,7 @@ static struct qla_tgt_sess *qlt_create_sess( ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006, "Adding sess %p to tgt %p via ->check_initiator_node_acl()\n", - sess, ha->tgt.qla_tgt); + sess, vha->vha_tgt.qla_tgt); be_sid[0] = sess->s_id.b.domain; be_sid[1] = sess->s_id.b.area; @@ -675,20 +670,16 @@ static struct qla_tgt_sess *qlt_create_sess( memcpy(sess->port_name, fcport->port_name, sizeof(sess->port_name)); spin_lock_irqsave(&ha->hardware_lock, flags); - list_add_tail(&sess->sess_list_entry, &ha->tgt.qla_tgt->sess_list); - ha->tgt.qla_tgt->sess_count++; + list_add_tail(&sess->sess_list_entry, &vha->vha_tgt.qla_tgt->sess_list); + vha->vha_tgt.qla_tgt->sess_count++; spin_unlock_irqrestore(&ha->hardware_lock, flags); ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b, - "qla_target(%d): %ssession for wwn %02x:%02x:%02x:%02x:" - "%02x:%02x:%02x:%02x (loop_id %d, s_id %x:%x:%x, confirmed" - " completion %ssupported) added\n", - vha->vp_idx, local ? "local " : "", fcport->port_name[0], - fcport->port_name[1], fcport->port_name[2], fcport->port_name[3], - fcport->port_name[4], fcport->port_name[5], fcport->port_name[6], - fcport->port_name[7], fcport->loop_id, sess->s_id.b.domain, - sess->s_id.b.area, sess->s_id.b.al_pa, sess->conf_compl_supported ? - "" : "not "); + "qla_target(%d): %ssession for wwn %8phC (loop_id %d, " + "s_id %x:%x:%x, confirmed completion %ssupported) added\n", + vha->vp_idx, local ? "local " : "", fcport->port_name, + fcport->loop_id, sess->s_id.b.domain, sess->s_id.b.area, + sess->s_id.b.al_pa, sess->conf_compl_supported ? "" : "not "); return sess; } @@ -699,7 +690,7 @@ static struct qla_tgt_sess *qlt_create_sess( void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; struct qla_tgt_sess *sess; unsigned long flags; @@ -709,6 +700,9 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) if (!tgt || (fcport->port_type != FCT_INITIATOR)) return; + if (qla_ini_mode_enabled(vha)) + return; + spin_lock_irqsave(&ha->hardware_lock, flags); if (tgt->tgt_stop) { spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -718,9 +712,9 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) if (!sess) { spin_unlock_irqrestore(&ha->hardware_lock, flags); - mutex_lock(&ha->tgt.tgt_mutex); + mutex_lock(&vha->vha_tgt.tgt_mutex); sess = qlt_create_sess(vha, fcport, false); - mutex_unlock(&ha->tgt.tgt_mutex); + mutex_unlock(&vha->vha_tgt.tgt_mutex); spin_lock_irqsave(&ha->hardware_lock, flags); } else { @@ -730,13 +724,9 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) qlt_undelete_sess(sess); ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c, - "qla_target(%u): %ssession for port %02x:" - "%02x:%02x:%02x:%02x:%02x:%02x:%02x (loop ID %d) " - "reappeared\n", vha->vp_idx, sess->local ? "local " - : "", sess->port_name[0], sess->port_name[1], - sess->port_name[2], sess->port_name[3], - sess->port_name[4], sess->port_name[5], - sess->port_name[6], sess->port_name[7], + "qla_target(%u): %ssession for port %8phC " + "(loop ID %d) reappeared\n", vha->vp_idx, + sess->local ? "local " : "", sess->port_name, sess->loop_id); ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007, @@ -749,13 +739,8 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) if (sess && sess->local) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d, "qla_target(%u): local session for " - "port %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " - "(loop ID %d) became global\n", vha->vp_idx, - fcport->port_name[0], fcport->port_name[1], - fcport->port_name[2], fcport->port_name[3], - fcport->port_name[4], fcport->port_name[5], - fcport->port_name[6], fcport->port_name[7], - sess->loop_id); + "port %8phC (loop ID %d) became global\n", vha->vp_idx, + fcport->port_name, sess->loop_id); sess->local = 0; } ha->tgt.tgt_ops->put_sess(sess); @@ -765,7 +750,7 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) void qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; struct qla_tgt_sess *sess; unsigned long flags; @@ -813,17 +798,32 @@ static inline int test_tgt_sess_count(struct qla_tgt *tgt) } /* Called by tcm_qla2xxx configfs code */ -void qlt_stop_phase1(struct qla_tgt *tgt) +int qlt_stop_phase1(struct qla_tgt *tgt) { struct scsi_qla_host *vha = tgt->vha; struct qla_hw_data *ha = tgt->ha; unsigned long flags; + mutex_lock(&qla_tgt_mutex); + if (!vha->fc_vport) { + struct Scsi_Host *sh = vha->host; + struct fc_host_attrs *fc_host = shost_to_fc_host(sh); + bool npiv_vports; + + spin_lock_irqsave(sh->host_lock, flags); + npiv_vports = (fc_host->npiv_vports_inuse); + spin_unlock_irqrestore(sh->host_lock, flags); + + if (npiv_vports) { + mutex_unlock(&qla_tgt_mutex); + return -EPERM; + } + } if (tgt->tgt_stop || tgt->tgt_stopped) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e, "Already in tgt->tgt_stop or tgt_stopped state\n"); - dump_stack(); - return; + mutex_unlock(&qla_tgt_mutex); + return -EPERM; } ql_dbg(ql_dbg_tgt, vha, 0xe003, "Stopping target for host %ld(%p)\n", @@ -832,12 +832,13 @@ void qlt_stop_phase1(struct qla_tgt *tgt) * Mutex needed to sync with qla_tgt_fc_port_[added,deleted]. * Lock is needed, because we still can get an incoming packet. */ - mutex_lock(&ha->tgt.tgt_mutex); + mutex_lock(&vha->vha_tgt.tgt_mutex); spin_lock_irqsave(&ha->hardware_lock, flags); tgt->tgt_stop = 1; qlt_clear_tgt_db(tgt, true); spin_unlock_irqrestore(&ha->hardware_lock, flags); - mutex_unlock(&ha->tgt.tgt_mutex); + mutex_unlock(&vha->vha_tgt.tgt_mutex); + mutex_unlock(&qla_tgt_mutex); flush_delayed_work(&tgt->sess_del_work); @@ -864,6 +865,7 @@ void qlt_stop_phase1(struct qla_tgt *tgt) /* Wait for sessions to clear out (just in case) */ wait_event(tgt->waitQ, test_tgt_sess_count(tgt)); + return 0; } EXPORT_SYMBOL(qlt_stop_phase1); @@ -871,20 +873,21 @@ EXPORT_SYMBOL(qlt_stop_phase1); void qlt_stop_phase2(struct qla_tgt *tgt) { struct qla_hw_data *ha = tgt->ha; + scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); unsigned long flags; if (tgt->tgt_stopped) { - ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf04f, + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f, "Already in tgt->tgt_stopped state\n"); dump_stack(); return; } - ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00b, + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b, "Waiting for %d IRQ commands to complete (tgt %p)", tgt->irq_cmd_count, tgt); - mutex_lock(&ha->tgt.tgt_mutex); + mutex_lock(&vha->vha_tgt.tgt_mutex); spin_lock_irqsave(&ha->hardware_lock, flags); while (tgt->irq_cmd_count != 0) { spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -894,9 +897,9 @@ void qlt_stop_phase2(struct qla_tgt *tgt) tgt->tgt_stop = 0; tgt->tgt_stopped = 1; spin_unlock_irqrestore(&ha->hardware_lock, flags); - mutex_unlock(&ha->tgt.tgt_mutex); + mutex_unlock(&vha->vha_tgt.tgt_mutex); - ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00c, "Stop of tgt %p finished", + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished", tgt); } EXPORT_SYMBOL(qlt_stop_phase2); @@ -904,14 +907,14 @@ EXPORT_SYMBOL(qlt_stop_phase2); /* Called from qlt_remove_target() -> qla2x00_remove_one() */ static void qlt_release(struct qla_tgt *tgt) { - struct qla_hw_data *ha = tgt->ha; + scsi_qla_host_t *vha = tgt->vha; - if ((ha->tgt.qla_tgt != NULL) && !tgt->tgt_stopped) + if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped) qlt_stop_phase2(tgt); - ha->tgt.qla_tgt = NULL; + vha->vha_tgt.qla_tgt = NULL; - ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00d, + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d, "Release of tgt %p finished\n", tgt); kfree(tgt); @@ -975,8 +978,8 @@ static void qlt_send_notify_ack(struct scsi_qla_host *vha, return; } - if (ha->tgt.qla_tgt != NULL) - ha->tgt.qla_tgt->notify_ack_expected++; + if (vha->vha_tgt.qla_tgt != NULL) + vha->vha_tgt.qla_tgt->notify_ack_expected++; pkt->entry_type = NOTIFY_ACK_TYPE; pkt->entry_count = 1; @@ -1080,7 +1083,7 @@ static void qlt_24xx_send_abts_resp(struct scsi_qla_host *vha, /* Other bytes are zero */ } - ha->tgt.qla_tgt->abts_resp_expected++; + vha->vha_tgt.qla_tgt->abts_resp_expected++; qla2x00_start_iocbs(vha, vha->req); } @@ -1125,7 +1128,7 @@ static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha, ctio->u.status1.flags = __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE); - ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id; + ctio->u.status1.ox_id = cpu_to_le16(entry->fcp_hdr_le.ox_id); qla2x00_start_iocbs(vha, vha->req); @@ -1232,7 +1235,7 @@ static void qlt_24xx_handle_abts(struct scsi_qla_host *vha, ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012, "qla_target(%d): task abort for non-existant session\n", vha->vp_idx); - rc = qlt_sched_sess_work(ha->tgt.qla_tgt, + rc = qlt_sched_sess_work(vha->vha_tgt.qla_tgt, QLA_TGT_SESS_WORK_ABORT, abts, sizeof(*abts)); if (rc != 0) { qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, @@ -1259,6 +1262,7 @@ static void qlt_24xx_send_task_mgmt_ctio(struct scsi_qla_host *ha, { struct atio_from_isp *atio = &mcmd->orig_iocb.atio; struct ctio7_to_24xx *ctio; + uint16_t temp; ql_dbg(ql_dbg_tgt, ha, 0xe008, "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n", @@ -1289,7 +1293,8 @@ static void qlt_24xx_send_task_mgmt_ctio(struct scsi_qla_host *ha, ctio->u.status1.flags = (atio->u.isp24.attr << 9) | __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS); - ctio->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id); + temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); + ctio->u.status1.ox_id = cpu_to_le16(temp); ctio->u.status1.scsi_status = __constant_cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID); ctio->u.status1.response_len = __constant_cpu_to_le16(8); @@ -1355,13 +1360,42 @@ static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm) prm->cmd->sg_mapped = 1; - /* - * If greater than four sg entries then we need to allocate - * the continuation entries - */ - if (prm->seg_cnt > prm->tgt->datasegs_per_cmd) - prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt - - prm->tgt->datasegs_per_cmd, prm->tgt->datasegs_per_cont); + if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) { + /* + * If greater than four sg entries then we need to allocate + * the continuation entries + */ + if (prm->seg_cnt > prm->tgt->datasegs_per_cmd) + prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt - + prm->tgt->datasegs_per_cmd, + prm->tgt->datasegs_per_cont); + } else { + /* DIF */ + if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || + (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { + prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz); + prm->tot_dsds = prm->seg_cnt; + } else + prm->tot_dsds = prm->seg_cnt; + + if (cmd->prot_sg_cnt) { + prm->prot_sg = cmd->prot_sg; + prm->prot_seg_cnt = pci_map_sg(prm->tgt->ha->pdev, + cmd->prot_sg, cmd->prot_sg_cnt, + cmd->dma_data_direction); + if (unlikely(prm->prot_seg_cnt == 0)) + goto out_err; + + if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || + (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { + /* Dif Bundling not support here */ + prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen, + cmd->blk_sz); + prm->tot_dsds += prm->prot_seg_cnt; + } else + prm->tot_dsds += prm->prot_seg_cnt; + } + } ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe009, "seg_cnt=%d, req_cnt=%d\n", prm->seg_cnt, prm->req_cnt); @@ -1382,6 +1416,16 @@ static inline void qlt_unmap_sg(struct scsi_qla_host *vha, BUG_ON(!cmd->sg_mapped); pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); cmd->sg_mapped = 0; + + if (cmd->prot_sg_cnt) + pci_unmap_sg(ha->pdev, cmd->prot_sg, cmd->prot_sg_cnt, + cmd->dma_data_direction); + + if (cmd->ctx_dsd_alloced) + qla2x00_clean_dsd_pool(ha, NULL, cmd); + + if (cmd->ctx) + dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma); } static int qlt_check_reserve_free_req(struct scsi_qla_host *vha, @@ -1471,6 +1515,7 @@ static int qlt_24xx_build_ctio_pkt(struct qla_tgt_prm *prm, struct ctio7_to_24xx *pkt; struct qla_hw_data *ha = vha->hw; struct atio_from_isp *atio = &prm->cmd->atio; + uint16_t temp; pkt = (struct ctio7_to_24xx *)vha->req->ring_ptr; prm->pkt = pkt; @@ -1499,13 +1544,13 @@ static int qlt_24xx_build_ctio_pkt(struct qla_tgt_prm *prm, pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; pkt->exchange_addr = atio->u.isp24.exchange_addr; pkt->u.status0.flags |= (atio->u.isp24.attr << 9); - pkt->u.status0.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id); + temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); + pkt->u.status0.ox_id = cpu_to_le16(temp); pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset); ql_dbg(ql_dbg_tgt, vha, 0xe00c, "qla_target(%d): handle(cmd) -> %08x, timeout %d, ox_id %#x\n", - vha->vp_idx, pkt->handle, QLA_TGT_TIMEOUT, - le16_to_cpu(pkt->u.status0.ox_id)); + vha->vp_idx, pkt->handle, QLA_TGT_TIMEOUT, temp); return 0; } @@ -1670,8 +1715,9 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd, return QLA_TGT_PRE_XMIT_RESP_CMD_ABORTED; } - ql_dbg(ql_dbg_tgt, vha, 0xe011, "qla_target(%d): tag=%u\n", - vha->vp_idx, cmd->tag); + ql_dbg(ql_dbg_tgt, vha, 0xe011, "qla_target(%d): tag=%u ox_id %04x\n", + vha->vp_idx, cmd->tag, + be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); prm->cmd = cmd; prm->tgt = tgt; @@ -1907,6 +1953,328 @@ skip_explict_conf: /* Sense with len > 24, is it possible ??? */ } + + +/* diff */ +static inline int +qlt_hba_err_chk_enabled(struct se_cmd *se_cmd) +{ + /* + * Uncomment when corresponding SCSI changes are done. + * + if (!sp->cmd->prot_chk) + return 0; + * + */ + switch (se_cmd->prot_op) { + case TARGET_PROT_DOUT_INSERT: + case TARGET_PROT_DIN_STRIP: + if (ql2xenablehba_err_chk >= 1) + return 1; + break; + case TARGET_PROT_DOUT_PASS: + case TARGET_PROT_DIN_PASS: + if (ql2xenablehba_err_chk >= 2) + return 1; + break; + case TARGET_PROT_DIN_INSERT: + case TARGET_PROT_DOUT_STRIP: + return 1; + default: + break; + } + return 0; +} + +/* + * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command + * + */ +static inline void +qlt_set_t10dif_tags(struct se_cmd *se_cmd, struct crc_context *ctx) +{ + uint32_t lba = 0xffffffff & se_cmd->t_task_lba; + + /* wait til Mode Sense/Select cmd, modepage Ah, subpage 2 + * have been immplemented by TCM, before AppTag is avail. + * Look for modesense_handlers[] + */ + ctx->app_tag = 0; + ctx->app_tag_mask[0] = 0x0; + ctx->app_tag_mask[1] = 0x0; + + switch (se_cmd->prot_type) { + case TARGET_DIF_TYPE0_PROT: + /* + * No check for ql2xenablehba_err_chk, as it would be an + * I/O error if hba tag generation is not done. + */ + ctx->ref_tag = cpu_to_le32(lba); + + if (!qlt_hba_err_chk_enabled(se_cmd)) + break; + + /* enable ALL bytes of the ref tag */ + ctx->ref_tag_mask[0] = 0xff; + ctx->ref_tag_mask[1] = 0xff; + ctx->ref_tag_mask[2] = 0xff; + ctx->ref_tag_mask[3] = 0xff; + break; + /* + * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and + * 16 bit app tag. + */ + case TARGET_DIF_TYPE1_PROT: + ctx->ref_tag = cpu_to_le32(lba); + + if (!qlt_hba_err_chk_enabled(se_cmd)) + break; + + /* enable ALL bytes of the ref tag */ + ctx->ref_tag_mask[0] = 0xff; + ctx->ref_tag_mask[1] = 0xff; + ctx->ref_tag_mask[2] = 0xff; + ctx->ref_tag_mask[3] = 0xff; + break; + /* + * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to + * match LBA in CDB + N + */ + case TARGET_DIF_TYPE2_PROT: + ctx->ref_tag = cpu_to_le32(lba); + + if (!qlt_hba_err_chk_enabled(se_cmd)) + break; + + /* enable ALL bytes of the ref tag */ + ctx->ref_tag_mask[0] = 0xff; + ctx->ref_tag_mask[1] = 0xff; + ctx->ref_tag_mask[2] = 0xff; + ctx->ref_tag_mask[3] = 0xff; + break; + + /* For Type 3 protection: 16 bit GUARD only */ + case TARGET_DIF_TYPE3_PROT: + ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] = + ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00; + break; + } +} + + +static inline int +qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) +{ + uint32_t *cur_dsd; + int sgc; + uint32_t transfer_length = 0; + uint32_t data_bytes; + uint32_t dif_bytes; + uint8_t bundling = 1; + uint8_t *clr_ptr; + struct crc_context *crc_ctx_pkt = NULL; + struct qla_hw_data *ha; + struct ctio_crc2_to_fw *pkt; + dma_addr_t crc_ctx_dma; + uint16_t fw_prot_opts = 0; + struct qla_tgt_cmd *cmd = prm->cmd; + struct se_cmd *se_cmd = &cmd->se_cmd; + uint32_t h; + struct atio_from_isp *atio = &prm->cmd->atio; + uint16_t t16; + + sgc = 0; + ha = vha->hw; + + pkt = (struct ctio_crc2_to_fw *)vha->req->ring_ptr; + prm->pkt = pkt; + memset(pkt, 0, sizeof(*pkt)); + + ql_dbg(ql_dbg_tgt, vha, 0xe071, + "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n", + vha->vp_idx, __func__, se_cmd, se_cmd->prot_op, + prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba); + + if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) || + (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP)) + bundling = 0; + + /* Compute dif len and adjust data len to incude protection */ + data_bytes = cmd->bufflen; + dif_bytes = (data_bytes / cmd->blk_sz) * 8; + + switch (se_cmd->prot_op) { + case TARGET_PROT_DIN_INSERT: + case TARGET_PROT_DOUT_STRIP: + transfer_length = data_bytes; + data_bytes += dif_bytes; + break; + + case TARGET_PROT_DIN_STRIP: + case TARGET_PROT_DOUT_INSERT: + case TARGET_PROT_DIN_PASS: + case TARGET_PROT_DOUT_PASS: + transfer_length = data_bytes + dif_bytes; + break; + + default: + BUG(); + break; + } + + if (!qlt_hba_err_chk_enabled(se_cmd)) + fw_prot_opts |= 0x10; /* Disable Guard tag checking */ + /* HBA error checking enabled */ + else if (IS_PI_UNINIT_CAPABLE(ha)) { + if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || + (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) + fw_prot_opts |= PO_DIS_VALD_APP_ESC; + else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) + fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; + } + + switch (se_cmd->prot_op) { + case TARGET_PROT_DIN_INSERT: + case TARGET_PROT_DOUT_INSERT: + fw_prot_opts |= PO_MODE_DIF_INSERT; + break; + case TARGET_PROT_DIN_STRIP: + case TARGET_PROT_DOUT_STRIP: + fw_prot_opts |= PO_MODE_DIF_REMOVE; + break; + case TARGET_PROT_DIN_PASS: + case TARGET_PROT_DOUT_PASS: + fw_prot_opts |= PO_MODE_DIF_PASS; + /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */ + break; + default:/* Normal Request */ + fw_prot_opts |= PO_MODE_DIF_PASS; + break; + } + + + /* ---- PKT ---- */ + /* Update entry type to indicate Command Type CRC_2 IOCB */ + pkt->entry_type = CTIO_CRC2; + pkt->entry_count = 1; + pkt->vp_index = vha->vp_idx; + + h = qlt_make_handle(vha); + if (unlikely(h == QLA_TGT_NULL_HANDLE)) { + /* + * CTIO type 7 from the firmware doesn't provide a way to + * know the initiator's LOOP ID, hence we can't find + * the session and, so, the command. + */ + return -EAGAIN; + } else + ha->tgt.cmds[h-1] = prm->cmd; + + + pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; + pkt->nport_handle = prm->cmd->loop_id; + pkt->timeout = __constant_cpu_to_le16(QLA_TGT_TIMEOUT); + pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; + pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; + pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; + pkt->exchange_addr = atio->u.isp24.exchange_addr; + + /* silence compile warning */ + t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); + pkt->ox_id = cpu_to_le16(t16); + + t16 = (atio->u.isp24.attr << 9); + pkt->flags |= cpu_to_le16(t16); + pkt->relative_offset = cpu_to_le32(prm->cmd->offset); + + /* Set transfer direction */ + if (cmd->dma_data_direction == DMA_TO_DEVICE) + pkt->flags = __constant_cpu_to_le16(CTIO7_FLAGS_DATA_IN); + else if (cmd->dma_data_direction == DMA_FROM_DEVICE) + pkt->flags = __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT); + + + pkt->dseg_count = prm->tot_dsds; + /* Fibre channel byte count */ + pkt->transfer_length = cpu_to_le32(transfer_length); + + + /* ----- CRC context -------- */ + + /* Allocate CRC context from global pool */ + crc_ctx_pkt = cmd->ctx = + dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); + + if (!crc_ctx_pkt) + goto crc_queuing_error; + + /* Zero out CTX area. */ + clr_ptr = (uint8_t *)crc_ctx_pkt; + memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); + + crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; + INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); + + /* Set handle */ + crc_ctx_pkt->handle = pkt->handle; + + qlt_set_t10dif_tags(se_cmd, crc_ctx_pkt); + + pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); + pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); + pkt->crc_context_len = CRC_CONTEXT_LEN_FW; + + + if (!bundling) { + cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; + } else { + /* + * Configure Bundling if we need to fetch interlaving + * protection PCI accesses + */ + fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; + crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); + crc_ctx_pkt->u.bundling.dseg_count = + cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt); + cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; + } + + /* Finish the common fields of CRC pkt */ + crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz); + crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); + crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); + crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); + + + /* Walks data segments */ + pkt->flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DSD_PTR); + + if (!bundling && prm->prot_seg_cnt) { + if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd, + prm->tot_dsds, cmd)) + goto crc_queuing_error; + } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd, + (prm->tot_dsds - prm->prot_seg_cnt), cmd)) + goto crc_queuing_error; + + if (bundling && prm->prot_seg_cnt) { + /* Walks dif segments */ + pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA; + + cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; + if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd, + prm->prot_seg_cnt, cmd)) + goto crc_queuing_error; + } + return QLA_SUCCESS; + +crc_queuing_error: + /* Cleanup will be performed by the caller */ + + return QLA_FUNCTION_FAILED; +} + + /* * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and * * QLA_TGT_XMIT_STATUS for >= 24xx silicon @@ -1926,9 +2294,10 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, qlt_check_srr_debug(cmd, &xmit_type); ql_dbg(ql_dbg_tgt, cmd->vha, 0xe018, - "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, " - "cmd->dma_data_direction=%d\n", (xmit_type & QLA_TGT_XMIT_STATUS) ? - 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction); + "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p]\n", + (xmit_type & QLA_TGT_XMIT_STATUS) ? + 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction, + &cmd->se_cmd); res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status, &full_req_cnt); @@ -1946,7 +2315,10 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, if (unlikely(res)) goto out_unmap_unlock; - res = qlt_24xx_build_ctio_pkt(&prm, vha); + if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA)) + res = qlt_build_ctio_crc2_pkt(&prm, vha); + else + res = qlt_24xx_build_ctio_pkt(&prm, vha); if (unlikely(res != 0)) goto out_unmap_unlock; @@ -1958,7 +2330,8 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, __constant_cpu_to_le16(CTIO7_FLAGS_DATA_IN | CTIO7_FLAGS_STATUS_MODE_0); - qlt_load_data_segments(&prm, vha); + if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) + qlt_load_data_segments(&prm, vha); if (prm.add_status_pkt == 0) { if (xmit_type & QLA_TGT_XMIT_STATUS) { @@ -1988,8 +2361,14 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, ql_dbg(ql_dbg_tgt, vha, 0xe019, "Building additional status packet\n"); + /* + * T10Dif: ctio_crc2_to_fw overlay ontop of + * ctio7_to_24xx + */ memcpy(ctio, pkt, sizeof(*ctio)); + /* reset back to CTIO7 */ ctio->entry_count = 1; + ctio->entry_type = CTIO_TYPE7; ctio->dseg_count = 0; ctio->u.status1.flags &= ~__constant_cpu_to_le16( CTIO7_FLAGS_DATA_IN); @@ -1998,6 +2377,11 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK; pkt->u.status0.flags |= __constant_cpu_to_le16( CTIO7_FLAGS_DONT_RET_CTIO); + + /* qlt_24xx_init_ctio_to_isp will correct + * all neccessary fields that's part of CTIO7. + * There should be no residual of CTIO-CRC2 data. + */ qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio, &prm); pr_debug("Status CTIO7: %p\n", ctio); @@ -2046,8 +2430,10 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) if (qlt_issue_marker(vha, 0) != QLA_SUCCESS) return -EIO; - ql_dbg(ql_dbg_tgt, vha, 0xe01b, "CTIO_start: vha(%d)", - (int)vha->vp_idx); + ql_dbg(ql_dbg_tgt, vha, 0xe01b, + "%s: CTIO_start: vha(%d) se_cmd %p ox_id %04x\n", + __func__, (int)vha->vp_idx, &cmd->se_cmd, + be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); /* Calculate number of entries and segments required */ if (qlt_pci_map_calc_cnt(&prm) != 0) @@ -2059,14 +2445,19 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) res = qlt_check_reserve_free_req(vha, prm.req_cnt); if (res != 0) goto out_unlock_free_unmap; + if (cmd->se_cmd.prot_op) + res = qlt_build_ctio_crc2_pkt(&prm, vha); + else + res = qlt_24xx_build_ctio_pkt(&prm, vha); - res = qlt_24xx_build_ctio_pkt(&prm, vha); if (unlikely(res != 0)) goto out_unlock_free_unmap; pkt = (struct ctio7_to_24xx *)prm.pkt; pkt->u.status0.flags |= __constant_cpu_to_le16(CTIO7_FLAGS_DATA_OUT | CTIO7_FLAGS_STATUS_MODE_0); - qlt_load_data_segments(&prm, vha); + + if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) + qlt_load_data_segments(&prm, vha); cmd->state = QLA_TGT_STATE_NEED_DATA; @@ -2084,6 +2475,143 @@ out_unlock_free_unmap: } EXPORT_SYMBOL(qlt_rdy_to_xfer); + +/* + * Checks the guard or meta-data for the type of error + * detected by the HBA. + */ +static inline int +qlt_handle_dif_error(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, + struct ctio_crc_from_fw *sts) +{ + uint8_t *ap = &sts->actual_dif[0]; + uint8_t *ep = &sts->expected_dif[0]; + uint32_t e_ref_tag, a_ref_tag; + uint16_t e_app_tag, a_app_tag; + uint16_t e_guard, a_guard; + uint64_t lba = cmd->se_cmd.t_task_lba; + + a_guard = be16_to_cpu(*(uint16_t *)(ap + 0)); + a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2)); + a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4)); + + e_guard = be16_to_cpu(*(uint16_t *)(ep + 0)); + e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2)); + e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4)); + + ql_dbg(ql_dbg_tgt, vha, 0xe075, + "iocb(s) %p Returned STATUS.\n", sts); + + ql_dbg(ql_dbg_tgt, vha, 0xf075, + "dif check TGT cdb 0x%x lba 0x%llu: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x]\n", + cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, + a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, a_guard, e_guard); + + /* + * Ignore sector if: + * For type 3: ref & app tag is all 'f's + * For type 0,1,2: app tag is all 'f's + */ + if ((a_app_tag == 0xffff) && + ((cmd->se_cmd.prot_type != TARGET_DIF_TYPE3_PROT) || + (a_ref_tag == 0xffffffff))) { + uint32_t blocks_done; + + /* 2TB boundary case covered automatically with this */ + blocks_done = e_ref_tag - (uint32_t)lba + 1; + cmd->se_cmd.bad_sector = e_ref_tag; + cmd->se_cmd.pi_err = 0; + ql_dbg(ql_dbg_tgt, vha, 0xf074, + "need to return scsi good\n"); + + /* Update protection tag */ + if (cmd->prot_sg_cnt) { + uint32_t i, j = 0, k = 0, num_ent; + struct scatterlist *sg, *sgl; + + + sgl = cmd->prot_sg; + + /* Patch the corresponding protection tags */ + for_each_sg(sgl, sg, cmd->prot_sg_cnt, i) { + num_ent = sg_dma_len(sg) / 8; + if (k + num_ent < blocks_done) { + k += num_ent; + continue; + } + j = blocks_done - k - 1; + k = blocks_done; + break; + } + + if (k != blocks_done) { + ql_log(ql_log_warn, vha, 0xf076, + "unexpected tag values tag:lba=%u:%llu)\n", + e_ref_tag, (unsigned long long)lba); + goto out; + } + +#if 0 + struct sd_dif_tuple *spt; + /* TODO: + * This section came from initiator. Is it valid here? + * should ulp be override with actual val??? + */ + spt = page_address(sg_page(sg)) + sg->offset; + spt += j; + + spt->app_tag = 0xffff; + if (cmd->se_cmd.prot_type == SCSI_PROT_DIF_TYPE3) + spt->ref_tag = 0xffffffff; +#endif + } + + return 0; + } + + /* check guard */ + if (e_guard != a_guard) { + cmd->se_cmd.pi_err = TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; + cmd->se_cmd.bad_sector = cmd->se_cmd.t_task_lba; + + ql_log(ql_log_warn, vha, 0xe076, + "Guard ERR: cdb 0x%x lba 0x%llx: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x] cmd=%p\n", + cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, + a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, + a_guard, e_guard, cmd); + goto out; + } + + /* check ref tag */ + if (e_ref_tag != a_ref_tag) { + cmd->se_cmd.pi_err = TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; + cmd->se_cmd.bad_sector = e_ref_tag; + + ql_log(ql_log_warn, vha, 0xe077, + "Ref Tag ERR: cdb 0x%x lba 0x%llx: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x] cmd=%p\n", + cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, + a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, + a_guard, e_guard, cmd); + goto out; + } + + /* check appl tag */ + if (e_app_tag != a_app_tag) { + cmd->se_cmd.pi_err = TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; + cmd->se_cmd.bad_sector = cmd->se_cmd.t_task_lba; + + ql_log(ql_log_warn, vha, 0xe078, + "App Tag ERR: cdb 0x%x lba 0x%llx: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x] cmd=%p\n", + cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, + a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, + a_guard, e_guard, cmd); + goto out; + } +out: + return 1; +} + + /* If hardware_lock held on entry, might drop it, then reaquire */ /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ static int __qlt_send_term_exchange(struct scsi_qla_host *vha, @@ -2094,6 +2622,7 @@ static int __qlt_send_term_exchange(struct scsi_qla_host *vha, struct qla_hw_data *ha = vha->hw; request_t *pkt; int ret = 0; + uint16_t temp; ql_dbg(ql_dbg_tgt, vha, 0xe01c, "Sending TERM EXCH CTIO (ha=%p)\n", ha); @@ -2130,7 +2659,8 @@ static int __qlt_send_term_exchange(struct scsi_qla_host *vha, ctio24->u.status1.flags = (atio->u.isp24.attr << 9) | __constant_cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE); - ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id); + temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); + ctio24->u.status1.ox_id = cpu_to_le16(temp); /* Most likely, it isn't needed */ ctio24->u.status1.residual = get_unaligned((uint32_t *) @@ -2160,21 +2690,46 @@ static void qlt_send_term_exchange(struct scsi_qla_host *vha, rc = __qlt_send_term_exchange(vha, cmd, atio); spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); done: - if (rc == 1) { + /* + * Terminate exchange will tell fw to release any active CTIO + * that's in FW posession and cleanup the exchange. + * + * "cmd->state == QLA_TGT_STATE_ABORTED" means CTIO is still + * down at FW. Free the cmd later when CTIO comes back later + * w/aborted(0x2) status. + * + * "cmd->state != QLA_TGT_STATE_ABORTED" means CTIO is already + * back w/some err. Free the cmd now. + */ + if ((rc == 1) && (cmd->state != QLA_TGT_STATE_ABORTED)) { if (!ha_locked && !in_interrupt()) msleep(250); /* just in case */ + if (cmd->sg_mapped) + qlt_unmap_sg(vha, cmd); vha->hw->tgt.tgt_ops->free_cmd(cmd); } + return; } void qlt_free_cmd(struct qla_tgt_cmd *cmd) { - BUG_ON(cmd->sg_mapped); + struct qla_tgt_sess *sess = cmd->sess; + ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074, + "%s: se_cmd[%p] ox_id %04x\n", + __func__, &cmd->se_cmd, + be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); + + BUG_ON(cmd->sg_mapped); if (unlikely(cmd->free_sg)) kfree(cmd->sg); - kmem_cache_free(qla_tgt_cmd_cachep, cmd); + + if (!sess || !sess->se_sess) { + WARN_ON(1); + return; + } + percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); } EXPORT_SYMBOL(qlt_free_cmd); @@ -2183,8 +2738,7 @@ static int qlt_prepare_srr_ctio(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, void *ctio) { struct qla_tgt_srr_ctio *sc; - struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; struct qla_tgt_srr_imm *imm; tgt->ctio_srr_id++; @@ -2380,6 +2934,7 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, case CTIO_LIP_RESET: case CTIO_TARGET_RESET: case CTIO_ABORTED: + /* driver request abort via Terminate exchange */ case CTIO_TIMEOUT: case CTIO_INVALID_RX_ID: /* They are OK */ @@ -2410,18 +2965,58 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, else return; + case CTIO_DIF_ERROR: { + struct ctio_crc_from_fw *crc = + (struct ctio_crc_from_fw *)ctio; + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073, + "qla_target(%d): CTIO with DIF_ERROR status %x received (state %x, se_cmd %p) actual_dif[0x%llx] expect_dif[0x%llx]\n", + vha->vp_idx, status, cmd->state, se_cmd, + *((u64 *)&crc->actual_dif[0]), + *((u64 *)&crc->expected_dif[0])); + + if (qlt_handle_dif_error(vha, cmd, ctio)) { + if (cmd->state == QLA_TGT_STATE_NEED_DATA) { + /* scsi Write/xfer rdy complete */ + goto skip_term; + } else { + /* scsi read/xmit respond complete + * call handle dif to send scsi status + * rather than terminate exchange. + */ + cmd->state = QLA_TGT_STATE_PROCESSED; + ha->tgt.tgt_ops->handle_dif_err(cmd); + return; + } + } else { + /* Need to generate a SCSI good completion. + * because FW did not send scsi status. + */ + status = 0; + goto skip_term; + } + break; + } default: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b, - "qla_target(%d): CTIO with error status " - "0x%x received (state %x, se_cmd %p\n", + "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n", vha->vp_idx, status, cmd->state, se_cmd); break; } - if (cmd->state != QLA_TGT_STATE_NEED_DATA) + + /* "cmd->state == QLA_TGT_STATE_ABORTED" means + * cmd is already aborted/terminated, we don't + * need to terminate again. The exchange is already + * cleaned up/freed at FW level. Just cleanup at driver + * level. + */ + if ((cmd->state != QLA_TGT_STATE_NEED_DATA) && + (cmd->state != QLA_TGT_STATE_ABORTED)) { if (qlt_term_ctio_exchange(vha, ctio, cmd, status)) return; + } } +skip_term: if (cmd->state == QLA_TGT_STATE_PROCESSED) { ql_dbg(ql_dbg_tgt, vha, 0xe01f, "Command %p finished\n", cmd); @@ -2450,7 +3045,8 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, "not return a CTIO complete\n", vha->vp_idx, cmd->state); } - if (unlikely(status != CTIO_SUCCESS)) { + if (unlikely(status != CTIO_SUCCESS) && + (cmd->state != QLA_TGT_STATE_ABORTED)) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n"); dump_stack(); } @@ -2495,13 +3091,12 @@ static struct qla_tgt_sess *qlt_make_local_sess(struct scsi_qla_host *, /* * Process context for I/O path into tcm_qla2xxx code */ -static void qlt_do_work(struct work_struct *work) +static void __qlt_do_work(struct qla_tgt_cmd *cmd) { - struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); scsi_qla_host_t *vha = cmd->vha; struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; - struct qla_tgt_sess *sess = NULL; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; + struct qla_tgt_sess *sess = cmd->sess; struct atio_from_isp *atio = &cmd->atio; unsigned char *cdb; unsigned long flags; @@ -2511,41 +3106,6 @@ static void qlt_do_work(struct work_struct *work) if (tgt->tgt_stop) goto out_term; - spin_lock_irqsave(&ha->hardware_lock, flags); - sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, - atio->u.isp24.fcp_hdr.s_id); - /* Do kref_get() before dropping qla_hw_data->hardware_lock. */ - if (sess) - kref_get(&sess->se_sess->sess_kref); - spin_unlock_irqrestore(&ha->hardware_lock, flags); - - if (unlikely(!sess)) { - uint8_t *s_id = atio->u.isp24.fcp_hdr.s_id; - - ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022, - "qla_target(%d): Unable to find wwn login" - " (s_id %x:%x:%x), trying to create it manually\n", - vha->vp_idx, s_id[0], s_id[1], s_id[2]); - - if (atio->u.raw.entry_count > 1) { - ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023, - "Dropping multy entry cmd %p\n", cmd); - goto out_term; - } - - mutex_lock(&ha->tgt.tgt_mutex); - sess = qlt_make_local_sess(vha, s_id); - /* sess has an extra creation ref. */ - mutex_unlock(&ha->tgt.tgt_mutex); - - if (!sess) - goto out_term; - } - - cmd->sess = sess; - cmd->loop_id = sess->loop_id; - cmd->conf_compl_supported = sess->conf_compl_supported; - cdb = &atio->u.isp24.fcp_cmnd.cdb[0]; cmd->tag = atio->u.isp24.exchange_addr; cmd->unpacked_lun = scsilun_to_int( @@ -2569,11 +3129,12 @@ static void qlt_do_work(struct work_struct *work) atio->u.isp24.fcp_cmnd.add_cdb_len])); ql_dbg(ql_dbg_tgt, vha, 0xe022, - "qla_target: START qla command: %p lun: 0x%04x (tag %d)\n", - cmd, cmd->unpacked_lun, cmd->tag); + "qla_target: START qla cmd: %p se_cmd %p lun: 0x%04x (tag %d) len(%d) ox_id %x\n", + cmd, &cmd->se_cmd, cmd->unpacked_lun, cmd->tag, data_length, + cmd->atio.u.isp24.fcp_hdr.ox_id); - ret = vha->hw->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length, - fcp_task_attr, data_dir, bidi); + ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length, + fcp_task_attr, data_dir, bidi); if (ret != 0) goto out_term; /* @@ -2592,10 +3153,105 @@ out_term: */ spin_lock_irqsave(&ha->hardware_lock, flags); qlt_send_term_exchange(vha, NULL, &cmd->atio, 1); - kmem_cache_free(qla_tgt_cmd_cachep, cmd); - if (sess) + percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); + ha->tgt.tgt_ops->put_sess(sess); + spin_unlock_irqrestore(&ha->hardware_lock, flags); +} + +static void qlt_do_work(struct work_struct *work) +{ + struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); + + __qlt_do_work(cmd); +} + +static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, + struct qla_tgt_sess *sess, + struct atio_from_isp *atio) +{ + struct se_session *se_sess = sess->se_sess; + struct qla_tgt_cmd *cmd; + int tag; + + tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); + if (tag < 0) + return NULL; + + cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; + memset(cmd, 0, sizeof(struct qla_tgt_cmd)); + + memcpy(&cmd->atio, atio, sizeof(*atio)); + cmd->state = QLA_TGT_STATE_NEW; + cmd->tgt = vha->vha_tgt.qla_tgt; + cmd->vha = vha; + cmd->se_cmd.map_tag = tag; + cmd->sess = sess; + cmd->loop_id = sess->loop_id; + cmd->conf_compl_supported = sess->conf_compl_supported; + + return cmd; +} + +static void qlt_send_busy(struct scsi_qla_host *, struct atio_from_isp *, + uint16_t); + +static void qlt_create_sess_from_atio(struct work_struct *work) +{ + struct qla_tgt_sess_op *op = container_of(work, + struct qla_tgt_sess_op, work); + scsi_qla_host_t *vha = op->vha; + struct qla_hw_data *ha = vha->hw; + struct qla_tgt_sess *sess; + struct qla_tgt_cmd *cmd; + unsigned long flags; + uint8_t *s_id = op->atio.u.isp24.fcp_hdr.s_id; + + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022, + "qla_target(%d): Unable to find wwn login" + " (s_id %x:%x:%x), trying to create it manually\n", + vha->vp_idx, s_id[0], s_id[1], s_id[2]); + + if (op->atio.u.raw.entry_count > 1) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023, + "Dropping multy entry atio %p\n", &op->atio); + goto out_term; + } + + mutex_lock(&vha->vha_tgt.tgt_mutex); + sess = qlt_make_local_sess(vha, s_id); + /* sess has an extra creation ref. */ + mutex_unlock(&vha->vha_tgt.tgt_mutex); + + if (!sess) + goto out_term; + /* + * Now obtain a pre-allocated session tag using the original op->atio + * packet header, and dispatch into __qlt_do_work() using the existing + * process context. + */ + cmd = qlt_get_tag(vha, sess, &op->atio); + if (!cmd) { + spin_lock_irqsave(&ha->hardware_lock, flags); + qlt_send_busy(vha, &op->atio, SAM_STAT_BUSY); ha->tgt.tgt_ops->put_sess(sess); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + kfree(op); + return; + } + /* + * __qlt_do_work() will call ha->tgt.tgt_ops->put_sess() to release + * the extra reference taken above by qlt_make_local_sess() + */ + __qlt_do_work(cmd); + kfree(op); + return; + +out_term: + spin_lock_irqsave(&ha->hardware_lock, flags); + qlt_send_term_exchange(vha, NULL, &op->atio, 1); spin_unlock_irqrestore(&ha->hardware_lock, flags); + kfree(op); + } /* ha->hardware_lock supposed to be held on entry */ @@ -2603,7 +3259,8 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, struct atio_from_isp *atio) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; + struct qla_tgt_sess *sess; struct qla_tgt_cmd *cmd; if (unlikely(tgt->tgt_stop)) { @@ -2612,20 +3269,31 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, return -EFAULT; } - cmd = kmem_cache_zalloc(qla_tgt_cmd_cachep, GFP_ATOMIC); + sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id); + if (unlikely(!sess)) { + struct qla_tgt_sess_op *op = kzalloc(sizeof(struct qla_tgt_sess_op), + GFP_ATOMIC); + if (!op) + return -ENOMEM; + + memcpy(&op->atio, atio, sizeof(*atio)); + INIT_WORK(&op->work, qlt_create_sess_from_atio); + queue_work(qla_tgt_wq, &op->work); + return 0; + } + /* + * Do kref_get() before returning + dropping qla_hw_data->hardware_lock. + */ + kref_get(&sess->se_sess->sess_kref); + + cmd = qlt_get_tag(vha, sess, atio); if (!cmd) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05e, "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx); + ha->tgt.tgt_ops->put_sess(sess); return -ENOMEM; } - INIT_LIST_HEAD(&cmd->cmd_list); - - memcpy(&cmd->atio, atio, sizeof(*atio)); - cmd->state = QLA_TGT_STATE_NEW; - cmd->tgt = ha->tgt.qla_tgt; - cmd->vha = vha; - INIT_WORK(&cmd->work, qlt_do_work); queue_work(qla_tgt_wq, &cmd->work); return 0; @@ -2749,7 +3417,7 @@ static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb) uint32_t lun, unpacked_lun; int lun_size, fn; - tgt = ha->tgt.qla_tgt; + tgt = vha->vha_tgt.qla_tgt; lun = a->u.isp24.fcp_cmnd.lun; lun_size = sizeof(a->u.isp24.fcp_cmnd.lun); @@ -2823,7 +3491,7 @@ static int qlt_abort_task(struct scsi_qla_host *vha, ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025, "qla_target(%d): task abort for unexisting " "session\n", vha->vp_idx); - return qlt_sched_sess_work(ha->tgt.qla_tgt, + return qlt_sched_sess_work(vha->vha_tgt.qla_tgt, QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb)); } @@ -2836,14 +3504,11 @@ static int qlt_abort_task(struct scsi_qla_host *vha, static int qlt_24xx_handle_els(struct scsi_qla_host *vha, struct imm_ntfy_from_isp *iocb) { - struct qla_hw_data *ha = vha->hw; int res = 0; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf026, - "qla_target(%d): Port ID: 0x%02x:%02x:%02x" - " ELS opcode: 0x%02x\n", vha->vp_idx, iocb->u.isp24.port_id[0], - iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[2], - iocb->u.isp24.status_subcode); + "qla_target(%d): Port ID: 0x%3phC ELS opcode: 0x%02x\n", + vha->vp_idx, iocb->u.isp24.port_id, iocb->u.isp24.status_subcode); switch (iocb->u.isp24.status_subcode) { case ELS_PLOGI: @@ -2856,7 +3521,7 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, case ELS_PDISC: case ELS_ADISC: { - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; if (tgt->link_reinit_iocb_pending) { qlt_send_notify_ack(vha, &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0); @@ -3214,7 +3879,8 @@ restart: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf02c, "SRR cmd %p (se_cmd %p, tag %d, op %x), " "sg_cnt=%d, offset=%d", cmd, &cmd->se_cmd, cmd->tag, - se_cmd->t_task_cdb[0], cmd->sg_cnt, cmd->offset); + se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0, + cmd->sg_cnt, cmd->offset); qlt_handle_srr(vha, sctio, imm); @@ -3230,8 +3896,7 @@ static void qlt_prepare_srr_imm(struct scsi_qla_host *vha, struct imm_ntfy_from_isp *iocb) { struct qla_tgt_srr_imm *imm; - struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; struct qla_tgt_srr_ctio *sctio; tgt->imm_srr_id++; @@ -3341,7 +4006,7 @@ static void qlt_handle_imm_notify(struct scsi_qla_host *vha, case IMM_NTFY_LIP_LINK_REINIT: { - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033, "qla_target(%d): LINK REINIT (loop %#x, " "subcode %x)\n", vha->vp_idx, @@ -3517,7 +4182,7 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, struct atio_from_isp *atio) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; int rc; if (unlikely(tgt == NULL)) { @@ -3539,11 +4204,11 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, switch (atio->u.raw.entry_type) { case ATIO_TYPE7: ql_dbg(ql_dbg_tgt, vha, 0xe02d, - "ATIO_TYPE7 instance %d, lun %Lx, read/write %d/%d, " - "add_cdb_len %d, data_length %04x, s_id %x:%x:%x\n", + "ATIO_TYPE7 instance %d, lun %Lx, read/write %d/%d, cdb %x, add_cdb_len %x, data_length %04x, s_id %02x%02x%02x\n", vha->vp_idx, atio->u.isp24.fcp_cmnd.lun, atio->u.isp24.fcp_cmnd.rddata, atio->u.isp24.fcp_cmnd.wrdata, + atio->u.isp24.fcp_cmnd.cdb[0], atio->u.isp24.fcp_cmnd.add_cdb_len, be32_to_cpu(get_unaligned((uint32_t *) &atio->u.isp24.fcp_cmnd.add_cdb[ @@ -3619,7 +4284,7 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; if (unlikely(tgt == NULL)) { ql_dbg(ql_dbg_tgt, vha, 0xe05d, @@ -3641,11 +4306,13 @@ static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt) tgt->irq_cmd_count++; switch (pkt->entry_type) { + case CTIO_CRC2: case CTIO_TYPE7: { struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; - ql_dbg(ql_dbg_tgt, vha, 0xe030, "CTIO_TYPE7: instance %d\n", - vha->vp_idx); + ql_dbg(ql_dbg_tgt, vha, 0xe030, + "CTIO[0x%x] 12/CTIO7 7A/CRC2: instance %d\n", + entry->entry_type, vha->vp_idx); qlt_do_ctio_completion(vha, entry->handle, le16_to_cpu(entry->status)|(pkt->entry_status << 16), entry); @@ -3822,7 +4489,7 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, uint16_t *mailbox) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; int login_code; ql_dbg(ql_dbg_tgt, vha, 0xe039, @@ -3952,14 +4619,14 @@ static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha, static struct qla_tgt_sess *qlt_make_local_sess(struct scsi_qla_host *vha, uint8_t *s_id) { - struct qla_hw_data *ha = vha->hw; struct qla_tgt_sess *sess = NULL; fc_port_t *fcport = NULL; int rc, global_resets; uint16_t loop_id = 0; retry: - global_resets = atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count); + global_resets = + atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); rc = qla24xx_get_loop_id(vha, s_id, &loop_id); if (rc != 0) { @@ -3986,12 +4653,13 @@ retry: return NULL; if (global_resets != - atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count)) { + atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043, "qla_target(%d): global reset during session discovery " "(counter was %d, new %d), retrying", vha->vp_idx, global_resets, - atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count)); + atomic_read(&vha->vha_tgt. + qla_tgt->tgt_global_resets_count)); goto retry; } @@ -4026,10 +4694,10 @@ static void qlt_abort_work(struct qla_tgt *tgt, if (!sess) { spin_unlock_irqrestore(&ha->hardware_lock, flags); - mutex_lock(&ha->tgt.tgt_mutex); + mutex_lock(&vha->vha_tgt.tgt_mutex); sess = qlt_make_local_sess(vha, s_id); /* sess has got an extra creation ref */ - mutex_unlock(&ha->tgt.tgt_mutex); + mutex_unlock(&vha->vha_tgt.tgt_mutex); spin_lock_irqsave(&ha->hardware_lock, flags); if (!sess) @@ -4080,10 +4748,10 @@ static void qlt_tmr_work(struct qla_tgt *tgt, if (!sess) { spin_unlock_irqrestore(&ha->hardware_lock, flags); - mutex_lock(&ha->tgt.tgt_mutex); + mutex_lock(&vha->vha_tgt.tgt_mutex); sess = qlt_make_local_sess(vha, s_id); /* sess has got an extra creation ref */ - mutex_unlock(&ha->tgt.tgt_mutex); + mutex_unlock(&vha->vha_tgt.tgt_mutex); spin_lock_irqsave(&ha->hardware_lock, flags); if (!sess) @@ -4169,9 +4837,9 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) } ql_dbg(ql_dbg_tgt, base_vha, 0xe03b, - "Registering target for host %ld(%p)", base_vha->host_no, ha); + "Registering target for host %ld(%p).\n", base_vha->host_no, ha); - BUG_ON((ha->tgt.qla_tgt != NULL) || (ha->tgt.tgt_ops != NULL)); + BUG_ON(base_vha->vha_tgt.qla_tgt != NULL); tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL); if (!tgt) { @@ -4199,7 +4867,7 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) INIT_WORK(&tgt->srr_work, qlt_handle_srr_work); atomic_set(&tgt->tgt_global_resets_count, 0); - ha->tgt.qla_tgt = tgt; + base_vha->vha_tgt.qla_tgt = tgt; ql_dbg(ql_dbg_tgt, base_vha, 0xe067, "qla_target(%d): using 64 Bit PCI addressing", @@ -4210,6 +4878,9 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) tgt->datasegs_per_cmd = QLA_TGT_DATASEGS_PER_CMD_24XX; tgt->datasegs_per_cont = QLA_TGT_DATASEGS_PER_CONT_24XX; + if (base_vha->fc_vport) + return 0; + mutex_lock(&qla_tgt_mutex); list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist); mutex_unlock(&qla_tgt_mutex); @@ -4220,16 +4891,20 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) /* Must be called under tgt_host_action_mutex */ int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha) { - if (!ha->tgt.qla_tgt) + if (!vha->vha_tgt.qla_tgt) return 0; + if (vha->fc_vport) { + qlt_release(vha->vha_tgt.qla_tgt); + return 0; + } mutex_lock(&qla_tgt_mutex); - list_del(&ha->tgt.qla_tgt->tgt_list_entry); + list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry); mutex_unlock(&qla_tgt_mutex); ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)", vha->host_no, ha); - qlt_release(ha->tgt.qla_tgt); + qlt_release(vha->vha_tgt.qla_tgt); return 0; } @@ -4263,8 +4938,9 @@ static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn, * @callback: lport initialization callback for tcm_qla2xxx code * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data */ -int qlt_lport_register(struct qla_tgt_func_tmpl *qla_tgt_ops, u64 wwpn, - int (*callback)(struct scsi_qla_host *), void *target_lport_ptr) +int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn, + u64 npiv_wwpn, u64 npiv_wwnn, + int (*callback)(struct scsi_qla_host *, void *, u64, u64)) { struct qla_tgt *tgt; struct scsi_qla_host *vha; @@ -4283,19 +4959,22 @@ int qlt_lport_register(struct qla_tgt_func_tmpl *qla_tgt_ops, u64 wwpn, if (!host) continue; - if (ha->tgt.tgt_ops != NULL) - continue; - if (!(host->hostt->supported_mode & MODE_TARGET)) continue; spin_lock_irqsave(&ha->hardware_lock, flags); - if (host->active_mode & MODE_TARGET) { + if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) { pr_debug("MODE_TARGET already active on qla2xxx(%d)\n", host->host_no); spin_unlock_irqrestore(&ha->hardware_lock, flags); continue; } + if (tgt->tgt_stop) { + pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n", + host->host_no); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + continue; + } spin_unlock_irqrestore(&ha->hardware_lock, flags); if (!scsi_host_get(host)) { @@ -4304,22 +4983,16 @@ int qlt_lport_register(struct qla_tgt_func_tmpl *qla_tgt_ops, u64 wwpn, " qla2xxx scsi_host\n"); continue; } - qlt_lport_dump(vha, wwpn, b); + qlt_lport_dump(vha, phys_wwpn, b); if (memcmp(vha->port_name, b, WWN_SIZE)) { scsi_host_put(host); continue; } - /* - * Setup passed parameters ahead of invoking callback - */ - ha->tgt.tgt_ops = qla_tgt_ops; - ha->tgt.target_lport_ptr = target_lport_ptr; - rc = (*callback)(vha); - if (rc != 0) { - ha->tgt.tgt_ops = NULL; - ha->tgt.target_lport_ptr = NULL; - } + rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn); + if (rc != 0) + scsi_host_put(host); + mutex_unlock(&qla_tgt_mutex); return rc; } @@ -4341,7 +5014,7 @@ void qlt_lport_deregister(struct scsi_qla_host *vha) /* * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data */ - ha->tgt.target_lport_ptr = NULL; + vha->vha_tgt.target_lport_ptr = NULL; ha->tgt.tgt_ops = NULL; /* * Release the Scsi_Host reference for the underlying qla2xxx host @@ -4403,8 +5076,9 @@ void qlt_enable_vha(struct scsi_qla_host *vha) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; unsigned long flags; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); if (!tgt) { ql_dbg(ql_dbg_tgt, vha, 0xe069, @@ -4419,9 +5093,14 @@ qlt_enable_vha(struct scsi_qla_host *vha) qlt_set_mode(vha); spin_unlock_irqrestore(&ha->hardware_lock, flags); - set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); - qla2xxx_wake_dpc(vha); - qla2x00_wait_for_hba_online(vha); + if (vha->vp_idx) { + qla24xx_disable_vp(vha); + qla24xx_enable_vp(vha); + } else { + set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); + qla2xxx_wake_dpc(base_vha); + qla2x00_wait_for_hba_online(base_vha); + } } EXPORT_SYMBOL(qlt_enable_vha); @@ -4434,7 +5113,7 @@ void qlt_disable_vha(struct scsi_qla_host *vha) { struct qla_hw_data *ha = vha->hw; - struct qla_tgt *tgt = ha->tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; unsigned long flags; if (!tgt) { @@ -4465,8 +5144,10 @@ qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha) if (!qla_tgt_mode_enabled(vha)) return; - mutex_init(&ha->tgt.tgt_mutex); - mutex_init(&ha->tgt.tgt_host_action_mutex); + vha->vha_tgt.qla_tgt = NULL; + + mutex_init(&vha->vha_tgt.tgt_mutex); + mutex_init(&vha->vha_tgt.tgt_host_action_mutex); qlt_clear_mode(vha); @@ -4477,6 +5158,8 @@ qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha) * assigning the value appropriately. */ ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX; + + qlt_add_target(ha, vha); } void @@ -4764,6 +5447,7 @@ qlt_24xx_process_response_error(struct scsi_qla_host *vha, case ABTS_RESP_24XX: case CTIO_TYPE7: case NOTIFY_ACK_TYPE: + case CTIO_CRC2: return 1; default: return 0; @@ -4795,8 +5479,8 @@ qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out; } - mutex_init(&ha->tgt.tgt_mutex); - mutex_init(&ha->tgt.tgt_host_action_mutex); + mutex_init(&base_vha->vha_tgt.tgt_mutex); + mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex); qlt_clear_mode(base_vha); } @@ -4907,23 +5591,13 @@ int __init qlt_init(void) if (!QLA_TGT_MODE_ENABLED()) return 0; - qla_tgt_cmd_cachep = kmem_cache_create("qla_tgt_cmd_cachep", - sizeof(struct qla_tgt_cmd), __alignof__(struct qla_tgt_cmd), 0, - NULL); - if (!qla_tgt_cmd_cachep) { - ql_log(ql_log_fatal, NULL, 0xe06c, - "kmem_cache_create for qla_tgt_cmd_cachep failed\n"); - return -ENOMEM; - } - qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep", sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct qla_tgt_mgmt_cmd), 0, NULL); if (!qla_tgt_mgmt_cmd_cachep) { ql_log(ql_log_fatal, NULL, 0xe06d, "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n"); - ret = -ENOMEM; - goto out; + return -ENOMEM; } qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab, @@ -4951,8 +5625,6 @@ out_cmd_mempool: mempool_destroy(qla_tgt_mgmt_cmd_mempool); out_mgmt_cmd_cachep: kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); -out: - kmem_cache_destroy(qla_tgt_cmd_cachep); return ret; } @@ -4964,5 +5636,4 @@ void qlt_exit(void) destroy_workqueue(qla_tgt_wq); mempool_destroy(qla_tgt_mgmt_cmd_mempool); kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); - kmem_cache_destroy(qla_tgt_cmd_cachep); } |