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![Bart Van Assche](/assets/img/avatar_default.png)
This patch improves readability and does not change any functionality. Cc: Himanshu Madhani <hmadhani@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Link: https://lore.kernel.org/r/20191219005050.40193-1-bvanassche@acm.org Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
7377 lines
196 KiB
C
7377 lines
196 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
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*
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* based on qla2x00t.c code:
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*
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* Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
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* Copyright (C) 2004 - 2005 Leonid Stoljar
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* Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
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* Copyright (C) 2006 - 2010 ID7 Ltd.
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*
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* Forward port and refactoring to modern qla2xxx and target/configfs
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*
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* Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org>
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/blkdev.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/list.h>
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#include <linux/workqueue.h>
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#include <asm/unaligned.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#include <target/target_core_base.h>
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#include <target/target_core_fabric.h>
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#include "qla_def.h"
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#include "qla_target.h"
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static int ql2xtgt_tape_enable;
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module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(ql2xtgt_tape_enable,
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"Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
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static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
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module_param(qlini_mode, charp, S_IRUGO);
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MODULE_PARM_DESC(qlini_mode,
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"Determines when initiator mode will be enabled. Possible values: "
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"\"exclusive\" - initiator mode will be enabled on load, "
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"disabled on enabling target mode and then on disabling target mode "
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"enabled back; "
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"\"disabled\" - initiator mode will never be enabled; "
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"\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
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"when ready "
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"\"enabled\" (default) - initiator mode will always stay enabled.");
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static int ql_dm_tgt_ex_pct = 0;
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module_param(ql_dm_tgt_ex_pct, int, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(ql_dm_tgt_ex_pct,
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"For Dual Mode (qlini_mode=dual), this parameter determines "
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"the percentage of exchanges/cmds FW will allocate resources "
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"for Target mode.");
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int ql2xuctrlirq = 1;
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module_param(ql2xuctrlirq, int, 0644);
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MODULE_PARM_DESC(ql2xuctrlirq,
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"User to control IRQ placement via smp_affinity."
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"Valid with qlini_mode=disabled."
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"1(default): enable");
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int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
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static int qla_sam_status = SAM_STAT_BUSY;
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static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */
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/*
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* From scsi/fc/fc_fcp.h
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*/
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enum fcp_resp_rsp_codes {
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FCP_TMF_CMPL = 0,
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FCP_DATA_LEN_INVALID = 1,
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FCP_CMND_FIELDS_INVALID = 2,
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FCP_DATA_PARAM_MISMATCH = 3,
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FCP_TMF_REJECTED = 4,
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FCP_TMF_FAILED = 5,
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FCP_TMF_INVALID_LUN = 9,
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};
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/*
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* fc_pri_ta from scsi/fc/fc_fcp.h
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*/
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#define FCP_PTA_SIMPLE 0 /* simple task attribute */
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#define FCP_PTA_HEADQ 1 /* head of queue task attribute */
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#define FCP_PTA_ORDERED 2 /* ordered task attribute */
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#define FCP_PTA_ACA 4 /* auto. contingent allegiance */
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#define FCP_PTA_MASK 7 /* mask for task attribute field */
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#define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
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#define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
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/*
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* This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
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* must be called under HW lock and could unlock/lock it inside.
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* It isn't an issue, since in the current implementation on the time when
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* those functions are called:
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*
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* - Either context is IRQ and only IRQ handler can modify HW data,
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* including rings related fields,
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*
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* - Or access to target mode variables from struct qla_tgt doesn't
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* cross those functions boundaries, except tgt_stop, which
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* additionally protected by irq_cmd_count.
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*/
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/* Predefs for callbacks handed to qla2xxx LLD */
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static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
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struct atio_from_isp *pkt, uint8_t);
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static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
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response_t *pkt);
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static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
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int fn, void *iocb, int flags);
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static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd
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*cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
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static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
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struct atio_from_isp *atio, uint16_t status, int qfull);
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static void qlt_disable_vha(struct scsi_qla_host *vha);
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static void qlt_clear_tgt_db(struct qla_tgt *tgt);
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static void qlt_send_notify_ack(struct qla_qpair *qpair,
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struct imm_ntfy_from_isp *ntfy,
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uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
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uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan);
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static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
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struct imm_ntfy_from_isp *imm, int ha_locked);
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static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
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fc_port_t *fcport, bool local);
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void qlt_unreg_sess(struct fc_port *sess);
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static void qlt_24xx_handle_abts(struct scsi_qla_host *,
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struct abts_recv_from_24xx *);
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static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
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uint16_t);
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static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t);
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static inline uint32_t qlt_make_handle(struct qla_qpair *);
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/*
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* Global Variables
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*/
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static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
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struct kmem_cache *qla_tgt_plogi_cachep;
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static mempool_t *qla_tgt_mgmt_cmd_mempool;
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static struct workqueue_struct *qla_tgt_wq;
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static DEFINE_MUTEX(qla_tgt_mutex);
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static LIST_HEAD(qla_tgt_glist);
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static const char *prot_op_str(u32 prot_op)
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{
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switch (prot_op) {
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case TARGET_PROT_NORMAL: return "NORMAL";
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case TARGET_PROT_DIN_INSERT: return "DIN_INSERT";
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case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT";
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case TARGET_PROT_DIN_STRIP: return "DIN_STRIP";
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case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP";
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case TARGET_PROT_DIN_PASS: return "DIN_PASS";
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case TARGET_PROT_DOUT_PASS: return "DOUT_PASS";
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default: return "UNKNOWN";
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}
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}
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/* This API intentionally takes dest as a parameter, rather than returning
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* int value to avoid caller forgetting to issue wmb() after the store */
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void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
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{
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scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
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*dest = atomic_inc_return(&base_vha->generation_tick);
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/* memory barrier */
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wmb();
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}
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/* Might release hw lock, then reaquire!! */
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static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
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{
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/* Send marker if required */
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if (unlikely(vha->marker_needed != 0)) {
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int rc = qla2x00_issue_marker(vha, vha_locked);
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if (rc != QLA_SUCCESS) {
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ql_dbg(ql_dbg_tgt, vha, 0xe03d,
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"qla_target(%d): issue_marker() failed\n",
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vha->vp_idx);
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}
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return rc;
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}
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return QLA_SUCCESS;
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}
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static inline
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struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha,
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be_id_t d_id)
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{
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struct scsi_qla_host *host;
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uint32_t key;
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if (vha->d_id.b.area == d_id.area &&
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vha->d_id.b.domain == d_id.domain &&
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vha->d_id.b.al_pa == d_id.al_pa)
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return vha;
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key = be_to_port_id(d_id).b24;
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host = btree_lookup32(&vha->hw->tgt.host_map, key);
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if (!host)
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ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
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"Unable to find host %06x\n", key);
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return host;
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}
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static inline
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struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha,
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uint16_t vp_idx)
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{
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struct qla_hw_data *ha = vha->hw;
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if (vha->vp_idx == vp_idx)
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return vha;
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BUG_ON(ha->tgt.tgt_vp_map == NULL);
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if (likely(test_bit(vp_idx, ha->vp_idx_map)))
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return ha->tgt.tgt_vp_map[vp_idx].vha;
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return NULL;
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}
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static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
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{
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unsigned long flags;
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spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
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vha->hw->tgt.num_pend_cmds++;
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if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds)
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vha->qla_stats.stat_max_pend_cmds =
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vha->hw->tgt.num_pend_cmds;
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spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
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}
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static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
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{
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unsigned long flags;
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spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
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vha->hw->tgt.num_pend_cmds--;
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spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
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}
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static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
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struct atio_from_isp *atio, uint8_t ha_locked)
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{
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struct qla_tgt_sess_op *u;
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struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
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unsigned long flags;
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if (tgt->tgt_stop) {
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ql_dbg(ql_dbg_async, vha, 0x502c,
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"qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
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vha->vp_idx);
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goto out_term;
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}
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u = kzalloc(sizeof(*u), GFP_ATOMIC);
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if (u == NULL)
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goto out_term;
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u->vha = vha;
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memcpy(&u->atio, atio, sizeof(*atio));
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INIT_LIST_HEAD(&u->cmd_list);
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spin_lock_irqsave(&vha->cmd_list_lock, flags);
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list_add_tail(&u->cmd_list, &vha->unknown_atio_list);
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spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
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schedule_delayed_work(&vha->unknown_atio_work, 1);
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out:
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return;
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out_term:
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qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0);
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goto out;
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}
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static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
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uint8_t ha_locked)
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{
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struct qla_tgt_sess_op *u, *t;
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scsi_qla_host_t *host;
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struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
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unsigned long flags;
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uint8_t queued = 0;
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list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
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if (u->aborted) {
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ql_dbg(ql_dbg_async, vha, 0x502e,
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"Freeing unknown %s %p, because of Abort\n",
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"ATIO_TYPE7", u);
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qlt_send_term_exchange(vha->hw->base_qpair, NULL,
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&u->atio, ha_locked, 0);
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goto abort;
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}
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host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
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if (host != NULL) {
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ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
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"Requeuing unknown ATIO_TYPE7 %p\n", u);
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qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
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} else if (tgt->tgt_stop) {
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ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
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"Freeing unknown %s %p, because tgt is being stopped\n",
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"ATIO_TYPE7", u);
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qlt_send_term_exchange(vha->hw->base_qpair, NULL,
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&u->atio, ha_locked, 0);
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} else {
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ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
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"Reschedule u %p, vha %p, host %p\n", u, vha, host);
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if (!queued) {
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queued = 1;
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schedule_delayed_work(&vha->unknown_atio_work,
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1);
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}
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continue;
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}
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abort:
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spin_lock_irqsave(&vha->cmd_list_lock, flags);
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list_del(&u->cmd_list);
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spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
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kfree(u);
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}
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}
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void qlt_unknown_atio_work_fn(struct work_struct *work)
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{
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struct scsi_qla_host *vha = container_of(to_delayed_work(work),
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struct scsi_qla_host, unknown_atio_work);
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qlt_try_to_dequeue_unknown_atios(vha, 0);
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}
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static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
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struct atio_from_isp *atio, uint8_t ha_locked)
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{
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ql_dbg(ql_dbg_tgt, vha, 0xe072,
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"%s: qla_target(%d): type %x ox_id %04x\n",
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__func__, vha->vp_idx, atio->u.raw.entry_type,
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be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
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switch (atio->u.raw.entry_type) {
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case ATIO_TYPE7:
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{
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struct scsi_qla_host *host = qlt_find_host_by_d_id(vha,
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atio->u.isp24.fcp_hdr.d_id);
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if (unlikely(NULL == host)) {
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ql_dbg(ql_dbg_tgt, vha, 0xe03e,
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"qla_target(%d): Received ATIO_TYPE7 "
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"with unknown d_id %x:%x:%x\n", vha->vp_idx,
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atio->u.isp24.fcp_hdr.d_id.domain,
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atio->u.isp24.fcp_hdr.d_id.area,
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atio->u.isp24.fcp_hdr.d_id.al_pa);
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|
|
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qlt_queue_unknown_atio(vha, atio, ha_locked);
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break;
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}
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if (unlikely(!list_empty(&vha->unknown_atio_list)))
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qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
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qlt_24xx_atio_pkt(host, atio, ha_locked);
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break;
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}
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case IMMED_NOTIFY_TYPE:
|
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{
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struct scsi_qla_host *host = vha;
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struct imm_ntfy_from_isp *entry =
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(struct imm_ntfy_from_isp *)atio;
|
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qlt_issue_marker(vha, ha_locked);
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if ((entry->u.isp24.vp_index != 0xFF) &&
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(entry->u.isp24.nport_handle != 0xFFFF)) {
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host = qlt_find_host_by_vp_idx(vha,
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entry->u.isp24.vp_index);
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if (unlikely(!host)) {
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ql_dbg(ql_dbg_tgt, vha, 0xe03f,
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"qla_target(%d): Received "
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"ATIO (IMMED_NOTIFY_TYPE) "
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"with unknown vp_index %d\n",
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vha->vp_idx, entry->u.isp24.vp_index);
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break;
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}
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}
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qlt_24xx_atio_pkt(host, atio, ha_locked);
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break;
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}
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|
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case VP_RPT_ID_IOCB_TYPE:
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qla24xx_report_id_acquisition(vha,
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(struct vp_rpt_id_entry_24xx *)atio);
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break;
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|
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case ABTS_RECV_24XX:
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{
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struct abts_recv_from_24xx *entry =
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(struct abts_recv_from_24xx *)atio;
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struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
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entry->vp_index);
|
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unsigned long flags;
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|
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if (unlikely(!host)) {
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|
ql_dbg(ql_dbg_tgt, vha, 0xe00a,
|
|
"qla_target(%d): Response pkt (ABTS_RECV_24XX) "
|
|
"received, with unknown vp_index %d\n",
|
|
vha->vp_idx, entry->vp_index);
|
|
break;
|
|
}
|
|
if (!ha_locked)
|
|
spin_lock_irqsave(&host->hw->hardware_lock, flags);
|
|
qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
|
|
if (!ha_locked)
|
|
spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
|
|
break;
|
|
}
|
|
|
|
/* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
|
|
|
|
default:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe040,
|
|
"qla_target(%d): Received unknown ATIO atio "
|
|
"type %x\n", vha->vp_idx, atio->u.raw.entry_type);
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
|
|
struct rsp_que *rsp, 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__);
|
|
/* fall through */
|
|
case CTIO_TYPE7:
|
|
{
|
|
struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
|
|
struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
|
|
entry->vp_index);
|
|
if (unlikely(!host)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe041,
|
|
"qla_target(%d): Response pkt (CTIO_TYPE7) "
|
|
"received, with unknown vp_index %d\n",
|
|
vha->vp_idx, entry->vp_index);
|
|
break;
|
|
}
|
|
qlt_response_pkt(host, rsp, pkt);
|
|
break;
|
|
}
|
|
|
|
case IMMED_NOTIFY_TYPE:
|
|
{
|
|
struct scsi_qla_host *host;
|
|
struct imm_ntfy_from_isp *entry =
|
|
(struct imm_ntfy_from_isp *)pkt;
|
|
|
|
host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index);
|
|
if (unlikely(!host)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe042,
|
|
"qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
|
|
"received, with unknown vp_index %d\n",
|
|
vha->vp_idx, entry->u.isp24.vp_index);
|
|
break;
|
|
}
|
|
qlt_response_pkt(host, rsp, pkt);
|
|
break;
|
|
}
|
|
|
|
case NOTIFY_ACK_TYPE:
|
|
{
|
|
struct scsi_qla_host *host = vha;
|
|
struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
|
|
|
|
if (0xFF != entry->u.isp24.vp_index) {
|
|
host = qlt_find_host_by_vp_idx(vha,
|
|
entry->u.isp24.vp_index);
|
|
if (unlikely(!host)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe043,
|
|
"qla_target(%d): Response "
|
|
"pkt (NOTIFY_ACK_TYPE) "
|
|
"received, with unknown "
|
|
"vp_index %d\n", vha->vp_idx,
|
|
entry->u.isp24.vp_index);
|
|
break;
|
|
}
|
|
}
|
|
qlt_response_pkt(host, rsp, pkt);
|
|
break;
|
|
}
|
|
|
|
case ABTS_RECV_24XX:
|
|
{
|
|
struct abts_recv_from_24xx *entry =
|
|
(struct abts_recv_from_24xx *)pkt;
|
|
struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
|
|
entry->vp_index);
|
|
if (unlikely(!host)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe044,
|
|
"qla_target(%d): Response pkt "
|
|
"(ABTS_RECV_24XX) received, with unknown "
|
|
"vp_index %d\n", vha->vp_idx, entry->vp_index);
|
|
break;
|
|
}
|
|
qlt_response_pkt(host, rsp, pkt);
|
|
break;
|
|
}
|
|
|
|
case ABTS_RESP_24XX:
|
|
{
|
|
struct abts_resp_to_24xx *entry =
|
|
(struct abts_resp_to_24xx *)pkt;
|
|
struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
|
|
entry->vp_index);
|
|
if (unlikely(!host)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe045,
|
|
"qla_target(%d): Response pkt "
|
|
"(ABTS_RECV_24XX) received, with unknown "
|
|
"vp_index %d\n", vha->vp_idx, entry->vp_index);
|
|
break;
|
|
}
|
|
qlt_response_pkt(host, rsp, pkt);
|
|
break;
|
|
}
|
|
default:
|
|
qlt_response_pkt(vha, rsp, pkt);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* All qlt_plogi_ack_t operations are protected by hardware_lock
|
|
*/
|
|
static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport,
|
|
struct imm_ntfy_from_isp *ntfy, int type)
|
|
{
|
|
struct qla_work_evt *e;
|
|
|
|
e = qla2x00_alloc_work(vha, QLA_EVT_NACK);
|
|
if (!e)
|
|
return QLA_FUNCTION_FAILED;
|
|
|
|
e->u.nack.fcport = fcport;
|
|
e->u.nack.type = type;
|
|
memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp));
|
|
return qla2x00_post_work(vha, e);
|
|
}
|
|
|
|
static void qla2x00_async_nack_sp_done(srb_t *sp, int res)
|
|
{
|
|
struct scsi_qla_host *vha = sp->vha;
|
|
unsigned long flags;
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x20f2,
|
|
"Async done-%s res %x %8phC type %d\n",
|
|
sp->name, res, sp->fcport->port_name, sp->type);
|
|
|
|
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
|
|
sp->fcport->flags &= ~FCF_ASYNC_SENT;
|
|
sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
|
|
|
|
switch (sp->type) {
|
|
case SRB_NACK_PLOGI:
|
|
sp->fcport->login_gen++;
|
|
sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
|
|
sp->fcport->logout_on_delete = 1;
|
|
sp->fcport->plogi_nack_done_deadline = jiffies + HZ;
|
|
sp->fcport->send_els_logo = 0;
|
|
break;
|
|
|
|
case SRB_NACK_PRLI:
|
|
sp->fcport->fw_login_state = DSC_LS_PRLI_COMP;
|
|
sp->fcport->deleted = 0;
|
|
sp->fcport->send_els_logo = 0;
|
|
|
|
if (!sp->fcport->login_succ &&
|
|
!IS_SW_RESV_ADDR(sp->fcport->d_id)) {
|
|
sp->fcport->login_succ = 1;
|
|
|
|
vha->fcport_count++;
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
qla24xx_sched_upd_fcport(sp->fcport);
|
|
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
|
|
} else {
|
|
sp->fcport->login_retry = 0;
|
|
qla2x00_set_fcport_disc_state(sp->fcport,
|
|
DSC_LOGIN_COMPLETE);
|
|
sp->fcport->deleted = 0;
|
|
sp->fcport->logout_on_delete = 1;
|
|
}
|
|
break;
|
|
|
|
case SRB_NACK_LOGO:
|
|
sp->fcport->login_gen++;
|
|
sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
|
|
qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE);
|
|
break;
|
|
}
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
|
|
sp->free(sp);
|
|
}
|
|
|
|
int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
|
|
struct imm_ntfy_from_isp *ntfy, int type)
|
|
{
|
|
int rval = QLA_FUNCTION_FAILED;
|
|
srb_t *sp;
|
|
char *c = NULL;
|
|
|
|
fcport->flags |= FCF_ASYNC_SENT;
|
|
switch (type) {
|
|
case SRB_NACK_PLOGI:
|
|
fcport->fw_login_state = DSC_LS_PLOGI_PEND;
|
|
c = "PLOGI";
|
|
break;
|
|
case SRB_NACK_PRLI:
|
|
fcport->fw_login_state = DSC_LS_PRLI_PEND;
|
|
fcport->deleted = 0;
|
|
c = "PRLI";
|
|
break;
|
|
case SRB_NACK_LOGO:
|
|
fcport->fw_login_state = DSC_LS_LOGO_PEND;
|
|
c = "LOGO";
|
|
break;
|
|
}
|
|
|
|
sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
|
|
if (!sp)
|
|
goto done;
|
|
|
|
sp->type = type;
|
|
sp->name = "nack";
|
|
|
|
sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
|
|
qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
|
|
|
|
sp->u.iocb_cmd.u.nack.ntfy = ntfy;
|
|
sp->done = qla2x00_async_nack_sp_done;
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x20f4,
|
|
"Async-%s %8phC hndl %x %s\n",
|
|
sp->name, fcport->port_name, sp->handle, c);
|
|
|
|
rval = qla2x00_start_sp(sp);
|
|
if (rval != QLA_SUCCESS)
|
|
goto done_free_sp;
|
|
|
|
return rval;
|
|
|
|
done_free_sp:
|
|
sp->free(sp);
|
|
done:
|
|
fcport->flags &= ~FCF_ASYNC_SENT;
|
|
return rval;
|
|
}
|
|
|
|
void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
|
|
{
|
|
fc_port_t *t;
|
|
|
|
switch (e->u.nack.type) {
|
|
case SRB_NACK_PRLI:
|
|
t = e->u.nack.fcport;
|
|
flush_work(&t->del_work);
|
|
flush_work(&t->free_work);
|
|
mutex_lock(&vha->vha_tgt.tgt_mutex);
|
|
t = qlt_create_sess(vha, e->u.nack.fcport, 0);
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
if (t) {
|
|
ql_log(ql_log_info, vha, 0xd034,
|
|
"%s create sess success %p", __func__, t);
|
|
/* create sess has an extra kref */
|
|
vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
|
|
}
|
|
break;
|
|
}
|
|
qla24xx_async_notify_ack(vha, e->u.nack.fcport,
|
|
(struct imm_ntfy_from_isp *)e->u.nack.iocb, e->u.nack.type);
|
|
}
|
|
|
|
void qla24xx_delete_sess_fn(struct work_struct *work)
|
|
{
|
|
fc_port_t *fcport = container_of(work, struct fc_port, del_work);
|
|
struct qla_hw_data *ha = fcport->vha->hw;
|
|
|
|
if (fcport->se_sess) {
|
|
ha->tgt.tgt_ops->shutdown_sess(fcport);
|
|
ha->tgt.tgt_ops->put_sess(fcport);
|
|
} else {
|
|
qlt_unreg_sess(fcport);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Called from qla2x00_reg_remote_port()
|
|
*/
|
|
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 = vha->vha_tgt.qla_tgt;
|
|
struct fc_port *sess = fcport;
|
|
unsigned long flags;
|
|
|
|
if (!vha->hw->tgt.tgt_ops)
|
|
return;
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
if (tgt->tgt_stop) {
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
return;
|
|
}
|
|
|
|
if (fcport->disc_state == DSC_DELETE_PEND) {
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
return;
|
|
}
|
|
|
|
if (!sess->se_sess) {
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
mutex_lock(&vha->vha_tgt.tgt_mutex);
|
|
sess = qlt_create_sess(vha, fcport, false);
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
} else {
|
|
if (fcport->fw_login_state == DSC_LS_PRLI_COMP) {
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
return;
|
|
}
|
|
|
|
if (!kref_get_unless_zero(&sess->sess_kref)) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x2107,
|
|
"%s: kref_get fail sess %8phC \n",
|
|
__func__, sess->port_name);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
return;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
|
|
"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,
|
|
"Reappeared sess %p\n", sess);
|
|
|
|
ha->tgt.tgt_ops->update_sess(sess, fcport->d_id,
|
|
fcport->loop_id,
|
|
(fcport->flags & FCF_CONF_COMP_SUPPORTED));
|
|
}
|
|
|
|
if (sess && sess->local) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
|
|
"qla_target(%u): local session for "
|
|
"port %8phC (loop ID %d) became global\n", vha->vp_idx,
|
|
fcport->port_name, sess->loop_id);
|
|
sess->local = 0;
|
|
}
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
ha->tgt.tgt_ops->put_sess(sess);
|
|
}
|
|
|
|
/*
|
|
* This is a zero-base ref-counting solution, since hardware_lock
|
|
* guarantees that ref_count is not modified concurrently.
|
|
* Upon successful return content of iocb is undefined
|
|
*/
|
|
static struct qlt_plogi_ack_t *
|
|
qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
|
|
struct imm_ntfy_from_isp *iocb)
|
|
{
|
|
struct qlt_plogi_ack_t *pla;
|
|
|
|
lockdep_assert_held(&vha->hw->hardware_lock);
|
|
|
|
list_for_each_entry(pla, &vha->plogi_ack_list, list) {
|
|
if (pla->id.b24 == id->b24) {
|
|
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x210d,
|
|
"%s %d %8phC Term INOT due to new INOT",
|
|
__func__, __LINE__,
|
|
pla->iocb.u.isp24.port_name);
|
|
qlt_send_term_imm_notif(vha, &pla->iocb, 1);
|
|
memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
|
|
return pla;
|
|
}
|
|
}
|
|
|
|
pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC);
|
|
if (!pla) {
|
|
ql_dbg(ql_dbg_async, vha, 0x5088,
|
|
"qla_target(%d): Allocation of plogi_ack failed\n",
|
|
vha->vp_idx);
|
|
return NULL;
|
|
}
|
|
|
|
memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
|
|
pla->id = *id;
|
|
list_add_tail(&pla->list, &vha->plogi_ack_list);
|
|
|
|
return pla;
|
|
}
|
|
|
|
void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
|
|
struct qlt_plogi_ack_t *pla)
|
|
{
|
|
struct imm_ntfy_from_isp *iocb = &pla->iocb;
|
|
port_id_t port_id;
|
|
uint16_t loop_id;
|
|
fc_port_t *fcport = pla->fcport;
|
|
|
|
BUG_ON(!pla->ref_count);
|
|
pla->ref_count--;
|
|
|
|
if (pla->ref_count)
|
|
return;
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x5089,
|
|
"Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
|
|
" exch %#x ox_id %#x\n", iocb->u.isp24.port_name,
|
|
iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1],
|
|
iocb->u.isp24.port_id[0],
|
|
le16_to_cpu(iocb->u.isp24.nport_handle),
|
|
iocb->u.isp24.exchange_address, iocb->ox_id);
|
|
|
|
port_id.b.domain = iocb->u.isp24.port_id[2];
|
|
port_id.b.area = iocb->u.isp24.port_id[1];
|
|
port_id.b.al_pa = iocb->u.isp24.port_id[0];
|
|
port_id.b.rsvd_1 = 0;
|
|
|
|
loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
|
|
|
|
fcport->loop_id = loop_id;
|
|
fcport->d_id = port_id;
|
|
if (iocb->u.isp24.status_subcode == ELS_PLOGI)
|
|
qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
|
|
else
|
|
qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
|
|
|
|
list_for_each_entry(fcport, &vha->vp_fcports, list) {
|
|
if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla)
|
|
fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
|
|
if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla)
|
|
fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
|
|
}
|
|
|
|
list_del(&pla->list);
|
|
kmem_cache_free(qla_tgt_plogi_cachep, pla);
|
|
}
|
|
|
|
void
|
|
qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
|
|
struct fc_port *sess, enum qlt_plogi_link_t link)
|
|
{
|
|
struct imm_ntfy_from_isp *iocb = &pla->iocb;
|
|
/* Inc ref_count first because link might already be pointing at pla */
|
|
pla->ref_count++;
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097,
|
|
"Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
|
|
" s_id %02x:%02x:%02x, ref=%d pla %p link %d\n",
|
|
sess, link, sess->port_name,
|
|
iocb->u.isp24.port_name, iocb->u.isp24.port_id[2],
|
|
iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
|
|
pla->ref_count, pla, link);
|
|
|
|
if (link == QLT_PLOGI_LINK_CONFLICT) {
|
|
switch (sess->disc_state) {
|
|
case DSC_DELETED:
|
|
case DSC_DELETE_PEND:
|
|
pla->ref_count--;
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (sess->plogi_link[link])
|
|
qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
|
|
|
|
if (link == QLT_PLOGI_LINK_SAME_WWN)
|
|
pla->fcport = sess;
|
|
|
|
sess->plogi_link[link] = pla;
|
|
}
|
|
|
|
typedef struct {
|
|
/* These fields must be initialized by the caller */
|
|
port_id_t id;
|
|
/*
|
|
* number of cmds dropped while we were waiting for
|
|
* initiator to ack LOGO initialize to 1 if LOGO is
|
|
* triggered by a command, otherwise, to 0
|
|
*/
|
|
int cmd_count;
|
|
|
|
/* These fields are used by callee */
|
|
struct list_head list;
|
|
} qlt_port_logo_t;
|
|
|
|
static void
|
|
qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
|
|
{
|
|
qlt_port_logo_t *tmp;
|
|
int res;
|
|
|
|
mutex_lock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
list_for_each_entry(tmp, &vha->logo_list, list) {
|
|
if (tmp->id.b24 == logo->id.b24) {
|
|
tmp->cmd_count += logo->cmd_count;
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
return;
|
|
}
|
|
}
|
|
|
|
list_add_tail(&logo->list, &vha->logo_list);
|
|
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id);
|
|
|
|
mutex_lock(&vha->vha_tgt.tgt_mutex);
|
|
list_del(&logo->list);
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098,
|
|
"Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n",
|
|
logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa,
|
|
logo->cmd_count, res);
|
|
}
|
|
|
|
void qlt_free_session_done(struct work_struct *work)
|
|
{
|
|
struct fc_port *sess = container_of(work, struct fc_port,
|
|
free_work);
|
|
struct qla_tgt *tgt = sess->tgt;
|
|
struct scsi_qla_host *vha = sess->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
unsigned long flags;
|
|
bool logout_started = false;
|
|
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
|
|
struct qlt_plogi_ack_t *own =
|
|
sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0xf084,
|
|
"%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
|
|
" s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n",
|
|
__func__, sess->se_sess, sess, sess->port_name, sess->loop_id,
|
|
sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa,
|
|
sess->logout_on_delete, sess->keep_nport_handle,
|
|
sess->send_els_logo);
|
|
|
|
if (!IS_SW_RESV_ADDR(sess->d_id)) {
|
|
qla2x00_mark_device_lost(vha, sess, 0);
|
|
|
|
if (sess->send_els_logo) {
|
|
qlt_port_logo_t logo;
|
|
|
|
logo.id = sess->d_id;
|
|
logo.cmd_count = 0;
|
|
if (!own)
|
|
qlt_send_first_logo(vha, &logo);
|
|
sess->send_els_logo = 0;
|
|
}
|
|
|
|
if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
|
|
int rc;
|
|
|
|
if (!own ||
|
|
(own &&
|
|
(own->iocb.u.isp24.status_subcode == ELS_PLOGI))) {
|
|
rc = qla2x00_post_async_logout_work(vha, sess,
|
|
NULL);
|
|
if (rc != QLA_SUCCESS)
|
|
ql_log(ql_log_warn, vha, 0xf085,
|
|
"Schedule logo failed sess %p rc %d\n",
|
|
sess, rc);
|
|
else
|
|
logout_started = true;
|
|
} else if (own && (own->iocb.u.isp24.status_subcode ==
|
|
ELS_PRLI) && ha->flags.rida_fmt2) {
|
|
rc = qla2x00_post_async_prlo_work(vha, sess,
|
|
NULL);
|
|
if (rc != QLA_SUCCESS)
|
|
ql_log(ql_log_warn, vha, 0xf085,
|
|
"Schedule PRLO failed sess %p rc %d\n",
|
|
sess, rc);
|
|
else
|
|
logout_started = true;
|
|
}
|
|
} /* if sess->logout_on_delete */
|
|
|
|
if (sess->nvme_flag & NVME_FLAG_REGISTERED &&
|
|
!(sess->nvme_flag & NVME_FLAG_DELETING)) {
|
|
sess->nvme_flag |= NVME_FLAG_DELETING;
|
|
qla_nvme_unregister_remote_port(sess);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Release the target session for FC Nexus from fabric module code.
|
|
*/
|
|
if (sess->se_sess != NULL)
|
|
ha->tgt.tgt_ops->free_session(sess);
|
|
|
|
if (logout_started) {
|
|
bool traced = false;
|
|
u16 cnt = 0;
|
|
|
|
while (!READ_ONCE(sess->logout_completed)) {
|
|
if (!traced) {
|
|
ql_dbg(ql_dbg_disc, vha, 0xf086,
|
|
"%s: waiting for sess %p logout\n",
|
|
__func__, sess);
|
|
traced = true;
|
|
}
|
|
msleep(100);
|
|
cnt++;
|
|
if (cnt > 200)
|
|
break;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0xf087,
|
|
"%s: sess %p logout completed\n", __func__, sess);
|
|
}
|
|
|
|
if (sess->logo_ack_needed) {
|
|
sess->logo_ack_needed = 0;
|
|
qla24xx_async_notify_ack(vha, sess,
|
|
(struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO);
|
|
}
|
|
|
|
spin_lock_irqsave(&vha->work_lock, flags);
|
|
sess->flags &= ~FCF_ASYNC_SENT;
|
|
spin_unlock_irqrestore(&vha->work_lock, flags);
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
if (sess->se_sess) {
|
|
sess->se_sess = NULL;
|
|
if (tgt && !IS_SW_RESV_ADDR(sess->d_id))
|
|
tgt->sess_count--;
|
|
}
|
|
|
|
qla2x00_set_fcport_disc_state(sess, DSC_DELETED);
|
|
sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
|
|
sess->deleted = QLA_SESS_DELETED;
|
|
|
|
if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) {
|
|
vha->fcport_count--;
|
|
sess->login_succ = 0;
|
|
}
|
|
|
|
qla2x00_clear_loop_id(sess);
|
|
|
|
if (sess->conflict) {
|
|
sess->conflict->login_pause = 0;
|
|
sess->conflict = NULL;
|
|
if (!test_bit(UNLOADING, &vha->dpc_flags))
|
|
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
|
|
}
|
|
|
|
{
|
|
struct qlt_plogi_ack_t *con =
|
|
sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
|
|
struct imm_ntfy_from_isp *iocb;
|
|
|
|
own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
|
|
|
|
if (con) {
|
|
iocb = &con->iocb;
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
|
|
"se_sess %p / sess %p port %8phC is gone,"
|
|
" %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
|
|
sess->se_sess, sess, sess->port_name,
|
|
own ? "releasing own PLOGI" : "no own PLOGI pending",
|
|
own ? own->ref_count : -1,
|
|
iocb->u.isp24.port_name, con->ref_count);
|
|
qlt_plogi_ack_unref(vha, con);
|
|
sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
|
|
} else {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
|
|
"se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
|
|
sess->se_sess, sess, sess->port_name,
|
|
own ? "releasing own PLOGI" :
|
|
"no own PLOGI pending",
|
|
own ? own->ref_count : -1);
|
|
}
|
|
|
|
if (own) {
|
|
sess->fw_login_state = DSC_LS_PLOGI_PEND;
|
|
qlt_plogi_ack_unref(vha, own);
|
|
sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
|
|
}
|
|
}
|
|
|
|
sess->explicit_logout = 0;
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
sess->free_pending = 0;
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0xf001,
|
|
"Unregistration of sess %p %8phC finished fcp_cnt %d\n",
|
|
sess, sess->port_name, vha->fcport_count);
|
|
|
|
if (tgt && (tgt->sess_count == 0))
|
|
wake_up_all(&tgt->waitQ);
|
|
|
|
if (!test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags) &&
|
|
!(vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags)) &&
|
|
(!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) {
|
|
switch (vha->host->active_mode) {
|
|
case MODE_INITIATOR:
|
|
case MODE_DUAL:
|
|
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
|
|
qla2xxx_wake_dpc(vha);
|
|
break;
|
|
case MODE_TARGET:
|
|
default:
|
|
/* no-op */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (vha->fcport_count == 0)
|
|
wake_up_all(&vha->fcport_waitQ);
|
|
}
|
|
|
|
/* ha->tgt.sess_lock supposed to be held on entry */
|
|
void qlt_unreg_sess(struct fc_port *sess)
|
|
{
|
|
struct scsi_qla_host *vha = sess->vha;
|
|
unsigned long flags;
|
|
|
|
ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
|
|
"%s sess %p for deletion %8phC\n",
|
|
__func__, sess, sess->port_name);
|
|
|
|
spin_lock_irqsave(&sess->vha->work_lock, flags);
|
|
if (sess->free_pending) {
|
|
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
|
|
return;
|
|
}
|
|
sess->free_pending = 1;
|
|
/*
|
|
* Use FCF_ASYNC_SENT flag to block other cmds used in sess
|
|
* management from being sent.
|
|
*/
|
|
sess->flags |= FCF_ASYNC_SENT;
|
|
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
|
|
|
|
if (sess->se_sess)
|
|
vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
|
|
|
|
sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
|
|
qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
|
|
sess->last_rscn_gen = sess->rscn_gen;
|
|
sess->last_login_gen = sess->login_gen;
|
|
|
|
queue_work(sess->vha->hw->wq, &sess->free_work);
|
|
}
|
|
EXPORT_SYMBOL(qlt_unreg_sess);
|
|
|
|
static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess = NULL;
|
|
uint16_t loop_id;
|
|
int res = 0;
|
|
struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
|
|
unsigned long flags;
|
|
|
|
loop_id = le16_to_cpu(n->u.isp24.nport_handle);
|
|
if (loop_id == 0xFFFF) {
|
|
/* Global event */
|
|
atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
} else {
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe000,
|
|
"Using sess for qla_tgt_reset: %p\n", sess);
|
|
if (!sess) {
|
|
res = -ESRCH;
|
|
return res;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe047,
|
|
"scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
|
|
"loop_id %d)\n", vha->host_no, sess, sess->port_name,
|
|
mcmd, loop_id);
|
|
|
|
return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK);
|
|
}
|
|
|
|
static void qla24xx_chk_fcp_state(struct fc_port *sess)
|
|
{
|
|
if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) {
|
|
sess->logout_on_delete = 0;
|
|
sess->logo_ack_needed = 0;
|
|
sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
|
|
}
|
|
}
|
|
|
|
void qlt_schedule_sess_for_deletion(struct fc_port *sess)
|
|
{
|
|
struct qla_tgt *tgt = sess->tgt;
|
|
unsigned long flags;
|
|
u16 sec;
|
|
|
|
switch (sess->disc_state) {
|
|
case DSC_DELETE_PEND:
|
|
return;
|
|
case DSC_DELETED:
|
|
if (tgt && tgt->tgt_stop && (tgt->sess_count == 0))
|
|
wake_up_all(&tgt->waitQ);
|
|
if (sess->vha->fcport_count == 0)
|
|
wake_up_all(&sess->vha->fcport_waitQ);
|
|
|
|
if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
|
|
!sess->plogi_link[QLT_PLOGI_LINK_CONFLICT])
|
|
return;
|
|
break;
|
|
case DSC_UPD_FCPORT:
|
|
/*
|
|
* This port is not done reporting to upper layer.
|
|
* let it finish
|
|
*/
|
|
sess->next_disc_state = DSC_DELETE_PEND;
|
|
sec = jiffies_to_msecs(jiffies -
|
|
sess->jiffies_at_registration)/1000;
|
|
if (sess->sec_since_registration < sec && sec && !(sec % 5)) {
|
|
sess->sec_since_registration = sec;
|
|
ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
|
|
"%s %8phC : Slow Rport registration(%d Sec)\n",
|
|
__func__, sess->port_name, sec);
|
|
}
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
spin_lock_irqsave(&sess->vha->work_lock, flags);
|
|
if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
|
|
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
|
|
return;
|
|
}
|
|
sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
|
|
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
|
|
|
|
sess->prli_pend_timer = 0;
|
|
qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
|
|
|
|
qla24xx_chk_fcp_state(sess);
|
|
|
|
ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
|
|
"Scheduling sess %p for deletion %8phC\n",
|
|
sess, sess->port_name);
|
|
|
|
WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
|
|
}
|
|
|
|
static void qlt_clear_tgt_db(struct qla_tgt *tgt)
|
|
{
|
|
struct fc_port *sess;
|
|
scsi_qla_host_t *vha = tgt->vha;
|
|
|
|
list_for_each_entry(sess, &vha->vp_fcports, list) {
|
|
if (sess->se_sess)
|
|
qlt_schedule_sess_for_deletion(sess);
|
|
}
|
|
|
|
/* At this point tgt could be already dead */
|
|
}
|
|
|
|
static int qla24xx_get_loop_id(struct scsi_qla_host *vha, be_id_t s_id,
|
|
uint16_t *loop_id)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
dma_addr_t gid_list_dma;
|
|
struct gid_list_info *gid_list, *gid;
|
|
int res, rc, i;
|
|
uint16_t entries;
|
|
|
|
gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
|
|
&gid_list_dma, GFP_KERNEL);
|
|
if (!gid_list) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
|
|
"qla_target(%d): DMA Alloc failed of %u\n",
|
|
vha->vp_idx, qla2x00_gid_list_size(ha));
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Get list of logged in devices */
|
|
rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries);
|
|
if (rc != QLA_SUCCESS) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
|
|
"qla_target(%d): get_id_list() failed: %x\n",
|
|
vha->vp_idx, rc);
|
|
res = -EBUSY;
|
|
goto out_free_id_list;
|
|
}
|
|
|
|
gid = gid_list;
|
|
res = -ENOENT;
|
|
for (i = 0; i < entries; i++) {
|
|
if (gid->al_pa == s_id.al_pa &&
|
|
gid->area == s_id.area &&
|
|
gid->domain == s_id.domain) {
|
|
*loop_id = le16_to_cpu(gid->loop_id);
|
|
res = 0;
|
|
break;
|
|
}
|
|
gid = (void *)gid + ha->gid_list_info_size;
|
|
}
|
|
|
|
out_free_id_list:
|
|
dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
|
|
gid_list, gid_list_dma);
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* Adds an extra ref to allow to drop hw lock after adding sess to the list.
|
|
* Caller must put it.
|
|
*/
|
|
static struct fc_port *qlt_create_sess(
|
|
struct scsi_qla_host *vha,
|
|
fc_port_t *fcport,
|
|
bool local)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess = fcport;
|
|
unsigned long flags;
|
|
|
|
if (vha->vha_tgt.qla_tgt->tgt_stop)
|
|
return NULL;
|
|
|
|
if (fcport->se_sess) {
|
|
if (!kref_get_unless_zero(&sess->sess_kref)) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x20f6,
|
|
"%s: kref_get_unless_zero failed for %8phC\n",
|
|
__func__, sess->port_name);
|
|
return NULL;
|
|
}
|
|
return fcport;
|
|
}
|
|
sess->tgt = vha->vha_tgt.qla_tgt;
|
|
sess->local = local;
|
|
|
|
/*
|
|
* Under normal circumstances we want to logout from firmware when
|
|
* session eventually ends and release corresponding nport handle.
|
|
* In the exception cases (e.g. when new PLOGI is waiting) corresponding
|
|
* code will adjust these flags as necessary.
|
|
*/
|
|
sess->logout_on_delete = 1;
|
|
sess->keep_nport_handle = 0;
|
|
sess->logout_completed = 0;
|
|
|
|
if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
|
|
&fcport->port_name[0], sess) < 0) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015,
|
|
"(%d) %8phC check_initiator_node_acl failed\n",
|
|
vha->vp_idx, fcport->port_name);
|
|
return NULL;
|
|
} else {
|
|
kref_init(&fcport->sess_kref);
|
|
/*
|
|
* Take an extra reference to ->sess_kref here to handle
|
|
* fc_port access across ->tgt.sess_lock reaquire.
|
|
*/
|
|
if (!kref_get_unless_zero(&sess->sess_kref)) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x20f7,
|
|
"%s: kref_get_unless_zero failed for %8phC\n",
|
|
__func__, sess->port_name);
|
|
return NULL;
|
|
}
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
if (!IS_SW_RESV_ADDR(sess->d_id))
|
|
vha->vha_tgt.qla_tgt->sess_count++;
|
|
|
|
qlt_do_generation_tick(vha, &sess->generation);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
|
|
"Adding sess %p se_sess %p to tgt %p sess_count %d\n",
|
|
sess, sess->se_sess, vha->vha_tgt.qla_tgt,
|
|
vha->vha_tgt.qla_tgt->sess_count);
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
|
|
"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->d_id.b.domain, sess->d_id.b.area,
|
|
sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not ");
|
|
|
|
return sess;
|
|
}
|
|
|
|
/*
|
|
* max_gen - specifies maximum session generation
|
|
* at which this deletion requestion is still valid
|
|
*/
|
|
void
|
|
qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
|
|
{
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
struct fc_port *sess = fcport;
|
|
unsigned long flags;
|
|
|
|
if (!vha->hw->tgt.tgt_ops)
|
|
return;
|
|
|
|
if (!tgt)
|
|
return;
|
|
|
|
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
|
|
if (tgt->tgt_stop) {
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
return;
|
|
}
|
|
if (!sess->se_sess) {
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
return;
|
|
}
|
|
|
|
if (max_gen - sess->generation < 0) {
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092,
|
|
"Ignoring stale deletion request for se_sess %p / sess %p"
|
|
" for port %8phC, req_gen %d, sess_gen %d\n",
|
|
sess->se_sess, sess, sess->port_name, max_gen,
|
|
sess->generation);
|
|
return;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
|
|
|
|
sess->local = 1;
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
qlt_schedule_sess_for_deletion(sess);
|
|
}
|
|
|
|
static inline int test_tgt_sess_count(struct qla_tgt *tgt)
|
|
{
|
|
struct qla_hw_data *ha = tgt->ha;
|
|
unsigned long flags;
|
|
int res;
|
|
/*
|
|
* We need to protect against race, when tgt is freed before or
|
|
* inside wake_up()
|
|
*/
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
|
|
"tgt %p, sess_count=%d\n",
|
|
tgt, tgt->sess_count);
|
|
res = (tgt->sess_count == 0);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Called by tcm_qla2xxx configfs code */
|
|
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(&ha->optrom_mutex);
|
|
mutex_lock(&qla_tgt_mutex);
|
|
|
|
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");
|
|
mutex_unlock(&qla_tgt_mutex);
|
|
mutex_unlock(&ha->optrom_mutex);
|
|
return -EPERM;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
|
|
vha->host_no, vha);
|
|
/*
|
|
* Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
|
|
* Lock is needed, because we still can get an incoming packet.
|
|
*/
|
|
mutex_lock(&vha->vha_tgt.tgt_mutex);
|
|
tgt->tgt_stop = 1;
|
|
qlt_clear_tgt_db(tgt);
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
mutex_unlock(&qla_tgt_mutex);
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
|
|
"Waiting for sess works (tgt %p)", tgt);
|
|
spin_lock_irqsave(&tgt->sess_work_lock, flags);
|
|
while (!list_empty(&tgt->sess_works_list)) {
|
|
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
|
|
flush_scheduled_work();
|
|
spin_lock_irqsave(&tgt->sess_work_lock, flags);
|
|
}
|
|
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
|
|
"Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
|
|
|
|
wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
|
|
|
|
/* Big hammer */
|
|
if (!ha->flags.host_shutting_down &&
|
|
(qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
|
|
qlt_disable_vha(vha);
|
|
|
|
/* Wait for sessions to clear out (just in case) */
|
|
wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
|
|
mutex_unlock(&ha->optrom_mutex);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(qlt_stop_phase1);
|
|
|
|
/* Called by tcm_qla2xxx configfs code */
|
|
void qlt_stop_phase2(struct qla_tgt *tgt)
|
|
{
|
|
scsi_qla_host_t *vha = tgt->vha;
|
|
|
|
if (tgt->tgt_stopped) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f,
|
|
"Already in tgt->tgt_stopped state\n");
|
|
dump_stack();
|
|
return;
|
|
}
|
|
if (!tgt->tgt_stop) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b,
|
|
"%s: phase1 stop is not completed\n", __func__);
|
|
dump_stack();
|
|
return;
|
|
}
|
|
|
|
mutex_lock(&vha->vha_tgt.tgt_mutex);
|
|
tgt->tgt_stop = 0;
|
|
tgt->tgt_stopped = 1;
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n",
|
|
tgt);
|
|
|
|
switch (vha->qlini_mode) {
|
|
case QLA2XXX_INI_MODE_EXCLUSIVE:
|
|
vha->flags.online = 1;
|
|
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(qlt_stop_phase2);
|
|
|
|
/* Called from qlt_remove_target() -> qla2x00_remove_one() */
|
|
static void qlt_release(struct qla_tgt *tgt)
|
|
{
|
|
scsi_qla_host_t *vha = tgt->vha;
|
|
void *node;
|
|
u64 key = 0;
|
|
u16 i;
|
|
struct qla_qpair_hint *h;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
if (!tgt->tgt_stop && !tgt->tgt_stopped)
|
|
qlt_stop_phase1(tgt);
|
|
|
|
if (!tgt->tgt_stopped)
|
|
qlt_stop_phase2(tgt);
|
|
|
|
for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
|
|
unsigned long flags;
|
|
|
|
h = &tgt->qphints[i];
|
|
if (h->qpair) {
|
|
spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
|
|
list_del(&h->hint_elem);
|
|
spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
|
|
h->qpair = NULL;
|
|
}
|
|
}
|
|
kfree(tgt->qphints);
|
|
mutex_lock(&qla_tgt_mutex);
|
|
list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
|
|
mutex_unlock(&qla_tgt_mutex);
|
|
|
|
btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
|
|
btree_remove64(&tgt->lun_qpair_map, key);
|
|
|
|
btree_destroy64(&tgt->lun_qpair_map);
|
|
|
|
if (vha->vp_idx)
|
|
if (ha->tgt.tgt_ops &&
|
|
ha->tgt.tgt_ops->remove_target &&
|
|
vha->vha_tgt.target_lport_ptr)
|
|
ha->tgt.tgt_ops->remove_target(vha);
|
|
|
|
vha->vha_tgt.qla_tgt = NULL;
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
|
|
"Release of tgt %p finished\n", tgt);
|
|
|
|
kfree(tgt);
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
|
|
const void *param, unsigned int param_size)
|
|
{
|
|
struct qla_tgt_sess_work_param *prm;
|
|
unsigned long flags;
|
|
|
|
prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
|
|
if (!prm) {
|
|
ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
|
|
"qla_target(%d): Unable to create session "
|
|
"work, command will be refused", 0);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
|
|
"Scheduling work (type %d, prm %p)"
|
|
" to find session for param %p (size %d, tgt %p)\n",
|
|
type, prm, param, param_size, tgt);
|
|
|
|
prm->type = type;
|
|
memcpy(&prm->tm_iocb, param, param_size);
|
|
|
|
spin_lock_irqsave(&tgt->sess_work_lock, flags);
|
|
list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
|
|
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
|
|
|
|
schedule_work(&tgt->sess_work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static void qlt_send_notify_ack(struct qla_qpair *qpair,
|
|
struct imm_ntfy_from_isp *ntfy,
|
|
uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
|
|
uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
|
|
{
|
|
struct scsi_qla_host *vha = qpair->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
request_t *pkt;
|
|
struct nack_to_isp *nack;
|
|
|
|
if (!ha->flags.fw_started)
|
|
return;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
|
|
|
|
pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
|
|
if (!pkt) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe049,
|
|
"qla_target(%d): %s failed: unable to allocate "
|
|
"request packet\n", vha->vp_idx, __func__);
|
|
return;
|
|
}
|
|
|
|
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;
|
|
|
|
nack = (struct nack_to_isp *)pkt;
|
|
nack->ox_id = ntfy->ox_id;
|
|
|
|
nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE;
|
|
nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
|
|
if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
|
|
nack->u.isp24.flags = ntfy->u.isp24.flags &
|
|
cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
|
|
}
|
|
nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
|
|
nack->u.isp24.status = ntfy->u.isp24.status;
|
|
nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
|
|
nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
|
|
nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
|
|
nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
|
|
nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
|
|
nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
|
|
nack->u.isp24.srr_reject_code = srr_reject_code;
|
|
nack->u.isp24.srr_reject_code_expl = srr_explan;
|
|
nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe005,
|
|
"qla_target(%d): Sending 24xx Notify Ack %d\n",
|
|
vha->vp_idx, nack->u.isp24.status);
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
}
|
|
|
|
static int qlt_build_abts_resp_iocb(struct qla_tgt_mgmt_cmd *mcmd)
|
|
{
|
|
struct scsi_qla_host *vha = mcmd->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct abts_resp_to_24xx *resp;
|
|
uint32_t f_ctl, h;
|
|
uint8_t *p;
|
|
int rc;
|
|
struct abts_recv_from_24xx *abts = &mcmd->orig_iocb.abts;
|
|
struct qla_qpair *qpair = mcmd->qpair;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe006,
|
|
"Sending task mgmt ABTS response (ha=%p, status=%x)\n",
|
|
ha, mcmd->fc_tm_rsp);
|
|
|
|
rc = qlt_check_reserve_free_req(qpair, 1);
|
|
if (rc) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe04a,
|
|
"qla_target(%d): %s failed: unable to allocate request packet\n",
|
|
vha->vp_idx, __func__);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
resp = (struct abts_resp_to_24xx *)qpair->req->ring_ptr;
|
|
memset(resp, 0, sizeof(*resp));
|
|
|
|
h = qlt_make_handle(qpair);
|
|
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 {
|
|
qpair->req->outstanding_cmds[h] = (srb_t *)mcmd;
|
|
}
|
|
|
|
resp->handle = MAKE_HANDLE(qpair->req->id, h);
|
|
resp->entry_type = ABTS_RESP_24XX;
|
|
resp->entry_count = 1;
|
|
resp->nport_handle = abts->nport_handle;
|
|
resp->vp_index = vha->vp_idx;
|
|
resp->sof_type = abts->sof_type;
|
|
resp->exchange_address = abts->exchange_address;
|
|
resp->fcp_hdr_le = abts->fcp_hdr_le;
|
|
f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
|
|
F_CTL_LAST_SEQ | F_CTL_END_SEQ |
|
|
F_CTL_SEQ_INITIATIVE);
|
|
p = (uint8_t *)&f_ctl;
|
|
resp->fcp_hdr_le.f_ctl[0] = *p++;
|
|
resp->fcp_hdr_le.f_ctl[1] = *p++;
|
|
resp->fcp_hdr_le.f_ctl[2] = *p;
|
|
|
|
resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
|
|
resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
|
|
|
|
resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
|
|
if (mcmd->fc_tm_rsp == FCP_TMF_CMPL) {
|
|
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
|
|
resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
|
|
resp->payload.ba_acct.low_seq_cnt = 0x0000;
|
|
resp->payload.ba_acct.high_seq_cnt = 0xFFFF;
|
|
resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
|
|
resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
|
|
} else {
|
|
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
|
|
resp->payload.ba_rjt.reason_code =
|
|
BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
|
|
/* Other bytes are zero */
|
|
}
|
|
|
|
vha->vha_tgt.qla_tgt->abts_resp_expected++;
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair,
|
|
struct abts_recv_from_24xx *abts, uint32_t status,
|
|
bool ids_reversed)
|
|
{
|
|
struct scsi_qla_host *vha = qpair->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct abts_resp_to_24xx *resp;
|
|
uint32_t f_ctl;
|
|
uint8_t *p;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe006,
|
|
"Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
|
|
ha, abts, status);
|
|
|
|
resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair,
|
|
NULL);
|
|
if (!resp) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe04a,
|
|
"qla_target(%d): %s failed: unable to allocate "
|
|
"request packet", vha->vp_idx, __func__);
|
|
return;
|
|
}
|
|
|
|
resp->entry_type = ABTS_RESP_24XX;
|
|
resp->handle = QLA_TGT_SKIP_HANDLE;
|
|
resp->entry_count = 1;
|
|
resp->nport_handle = abts->nport_handle;
|
|
resp->vp_index = vha->vp_idx;
|
|
resp->sof_type = abts->sof_type;
|
|
resp->exchange_address = abts->exchange_address;
|
|
resp->fcp_hdr_le = abts->fcp_hdr_le;
|
|
f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
|
|
F_CTL_LAST_SEQ | F_CTL_END_SEQ |
|
|
F_CTL_SEQ_INITIATIVE);
|
|
p = (uint8_t *)&f_ctl;
|
|
resp->fcp_hdr_le.f_ctl[0] = *p++;
|
|
resp->fcp_hdr_le.f_ctl[1] = *p++;
|
|
resp->fcp_hdr_le.f_ctl[2] = *p;
|
|
if (ids_reversed) {
|
|
resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.d_id;
|
|
resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.s_id;
|
|
} else {
|
|
resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
|
|
resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
|
|
}
|
|
resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
|
|
if (status == FCP_TMF_CMPL) {
|
|
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
|
|
resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
|
|
resp->payload.ba_acct.low_seq_cnt = 0x0000;
|
|
resp->payload.ba_acct.high_seq_cnt = 0xFFFF;
|
|
resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
|
|
resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
|
|
} else {
|
|
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
|
|
resp->payload.ba_rjt.reason_code =
|
|
BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
|
|
/* Other bytes are zero */
|
|
}
|
|
|
|
vha->vha_tgt.qla_tgt->abts_resp_expected++;
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
|
|
struct qla_qpair *qpair, response_t *pkt, struct qla_tgt_mgmt_cmd *mcmd)
|
|
{
|
|
struct ctio7_to_24xx *ctio;
|
|
u16 tmp;
|
|
struct abts_recv_from_24xx *entry;
|
|
|
|
ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, NULL);
|
|
if (ctio == NULL) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe04b,
|
|
"qla_target(%d): %s failed: unable to allocate "
|
|
"request packet\n", vha->vp_idx, __func__);
|
|
return;
|
|
}
|
|
|
|
if (mcmd)
|
|
/* abts from remote port */
|
|
entry = &mcmd->orig_iocb.abts;
|
|
else
|
|
/* abts from this driver. */
|
|
entry = (struct abts_recv_from_24xx *)pkt;
|
|
|
|
/*
|
|
* We've got on entrance firmware's response on by us generated
|
|
* ABTS response. So, in it ID fields are reversed.
|
|
*/
|
|
|
|
ctio->entry_type = CTIO_TYPE7;
|
|
ctio->entry_count = 1;
|
|
ctio->nport_handle = entry->nport_handle;
|
|
ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
|
|
ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
|
|
ctio->vp_index = vha->vp_idx;
|
|
ctio->exchange_addr = entry->exchange_addr_to_abort;
|
|
tmp = (CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE);
|
|
|
|
if (mcmd) {
|
|
ctio->initiator_id = entry->fcp_hdr_le.s_id;
|
|
|
|
if (mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID)
|
|
tmp |= (mcmd->abort_io_attr << 9);
|
|
else if (qpair->retry_term_cnt & 1)
|
|
tmp |= (0x4 << 9);
|
|
} else {
|
|
ctio->initiator_id = entry->fcp_hdr_le.d_id;
|
|
|
|
if (qpair->retry_term_cnt & 1)
|
|
tmp |= (0x4 << 9);
|
|
}
|
|
ctio->u.status1.flags = cpu_to_le16(tmp);
|
|
ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe007,
|
|
"Sending retry TERM EXCH CTIO7 flags %04xh oxid %04xh attr valid %x\n",
|
|
le16_to_cpu(ctio->u.status1.flags),
|
|
le16_to_cpu(ctio->u.status1.ox_id),
|
|
(mcmd && mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) ? 1 : 0);
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
|
|
if (mcmd)
|
|
qlt_build_abts_resp_iocb(mcmd);
|
|
else
|
|
qlt_24xx_send_abts_resp(qpair,
|
|
(struct abts_recv_from_24xx *)entry, FCP_TMF_CMPL, true);
|
|
|
|
}
|
|
|
|
/* drop cmds for the given lun
|
|
* XXX only looks for cmds on the port through which lun reset was recieved
|
|
* XXX does not go through the list of other port (which may have cmds
|
|
* for the same lun)
|
|
*/
|
|
static void abort_cmds_for_lun(struct scsi_qla_host *vha, u64 lun, be_id_t s_id)
|
|
{
|
|
struct qla_tgt_sess_op *op;
|
|
struct qla_tgt_cmd *cmd;
|
|
uint32_t key;
|
|
unsigned long flags;
|
|
|
|
key = sid_to_key(s_id);
|
|
spin_lock_irqsave(&vha->cmd_list_lock, flags);
|
|
list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
|
|
uint32_t op_key;
|
|
u64 op_lun;
|
|
|
|
op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
|
|
op_lun = scsilun_to_int(
|
|
(struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
|
|
if (op_key == key && op_lun == lun)
|
|
op->aborted = true;
|
|
}
|
|
|
|
list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
|
|
uint32_t op_key;
|
|
u64 op_lun;
|
|
|
|
op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
|
|
op_lun = scsilun_to_int(
|
|
(struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
|
|
if (op_key == key && op_lun == lun)
|
|
op->aborted = true;
|
|
}
|
|
|
|
list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
|
|
uint32_t cmd_key;
|
|
u64 cmd_lun;
|
|
|
|
cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
|
|
cmd_lun = scsilun_to_int(
|
|
(struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun);
|
|
if (cmd_key == key && cmd_lun == lun)
|
|
cmd->aborted = 1;
|
|
}
|
|
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
|
|
}
|
|
|
|
static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha,
|
|
uint64_t unpacked_lun)
|
|
{
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
struct qla_qpair_hint *h = NULL;
|
|
|
|
if (vha->flags.qpairs_available) {
|
|
h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun);
|
|
if (!h)
|
|
h = &tgt->qphints[0];
|
|
} else {
|
|
h = &tgt->qphints[0];
|
|
}
|
|
|
|
return h;
|
|
}
|
|
|
|
static void qlt_do_tmr_work(struct work_struct *work)
|
|
{
|
|
struct qla_tgt_mgmt_cmd *mcmd =
|
|
container_of(work, struct qla_tgt_mgmt_cmd, work);
|
|
struct qla_hw_data *ha = mcmd->vha->hw;
|
|
int rc = EIO;
|
|
uint32_t tag;
|
|
unsigned long flags;
|
|
|
|
switch (mcmd->tmr_func) {
|
|
case QLA_TGT_ABTS:
|
|
tag = mcmd->orig_iocb.abts.exchange_addr_to_abort;
|
|
break;
|
|
default:
|
|
tag = 0;
|
|
break;
|
|
}
|
|
|
|
rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun,
|
|
mcmd->tmr_func, tag);
|
|
|
|
if (rc != 0) {
|
|
spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags);
|
|
switch (mcmd->tmr_func) {
|
|
case QLA_TGT_ABTS:
|
|
mcmd->fc_tm_rsp = FCP_TMF_REJECTED;
|
|
qlt_build_abts_resp_iocb(mcmd);
|
|
break;
|
|
case QLA_TGT_LUN_RESET:
|
|
case QLA_TGT_CLEAR_TS:
|
|
case QLA_TGT_ABORT_TS:
|
|
case QLA_TGT_CLEAR_ACA:
|
|
case QLA_TGT_TARGET_RESET:
|
|
qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio,
|
|
qla_sam_status);
|
|
break;
|
|
|
|
case QLA_TGT_ABORT_ALL:
|
|
case QLA_TGT_NEXUS_LOSS_SESS:
|
|
case QLA_TGT_NEXUS_LOSS:
|
|
qlt_send_notify_ack(mcmd->qpair,
|
|
&mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
|
|
break;
|
|
}
|
|
spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags);
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
|
|
"qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
|
|
mcmd->vha->vp_idx, rc);
|
|
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
|
|
}
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
|
|
struct abts_recv_from_24xx *abts, struct fc_port *sess)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_tgt_mgmt_cmd *mcmd;
|
|
struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
|
|
"qla_target(%d): task abort (tag=%d)\n",
|
|
vha->vp_idx, abts->exchange_addr_to_abort);
|
|
|
|
mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
|
|
if (mcmd == NULL) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
|
|
"qla_target(%d): %s: Allocation of ABORT cmd failed",
|
|
vha->vp_idx, __func__);
|
|
return -ENOMEM;
|
|
}
|
|
memset(mcmd, 0, sizeof(*mcmd));
|
|
mcmd->cmd_type = TYPE_TGT_TMCMD;
|
|
mcmd->sess = sess;
|
|
memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
|
|
mcmd->reset_count = ha->base_qpair->chip_reset;
|
|
mcmd->tmr_func = QLA_TGT_ABTS;
|
|
mcmd->qpair = h->qpair;
|
|
mcmd->vha = vha;
|
|
|
|
/*
|
|
* LUN is looked up by target-core internally based on the passed
|
|
* abts->exchange_addr_to_abort tag.
|
|
*/
|
|
mcmd->se_cmd.cpuid = h->cpuid;
|
|
|
|
if (ha->tgt.tgt_ops->find_cmd_by_tag) {
|
|
struct qla_tgt_cmd *abort_cmd;
|
|
|
|
abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
|
|
abts->exchange_addr_to_abort);
|
|
if (abort_cmd && abort_cmd->qpair) {
|
|
mcmd->qpair = abort_cmd->qpair;
|
|
mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid;
|
|
mcmd->abort_io_attr = abort_cmd->atio.u.isp24.attr;
|
|
mcmd->flags = QLA24XX_MGMT_ABORT_IO_ATTR_VALID;
|
|
}
|
|
}
|
|
|
|
INIT_WORK(&mcmd->work, qlt_do_tmr_work);
|
|
queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
|
|
struct abts_recv_from_24xx *abts)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess;
|
|
uint32_t tag = abts->exchange_addr_to_abort;
|
|
be_id_t s_id;
|
|
int rc;
|
|
unsigned long flags;
|
|
|
|
if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
|
|
"qla_target(%d): ABTS: Abort Sequence not "
|
|
"supported\n", vha->vp_idx);
|
|
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
|
|
false);
|
|
return;
|
|
}
|
|
|
|
if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
|
|
"qla_target(%d): ABTS: Unknown Exchange "
|
|
"Address received\n", vha->vp_idx);
|
|
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
|
|
false);
|
|
return;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
|
|
"qla_target(%d): task abort (s_id=%x:%x:%x, "
|
|
"tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id.domain,
|
|
abts->fcp_hdr_le.s_id.area, abts->fcp_hdr_le.s_id.al_pa, tag,
|
|
le32_to_cpu(abts->fcp_hdr_le.parameter));
|
|
|
|
s_id = le_id_to_be(abts->fcp_hdr_le.s_id);
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
|
|
if (!sess) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
|
|
"qla_target(%d): task abort for non-existent session\n",
|
|
vha->vp_idx);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
|
|
false);
|
|
return;
|
|
}
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
|
|
if (sess->deleted) {
|
|
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
|
|
false);
|
|
return;
|
|
}
|
|
|
|
rc = __qlt_24xx_handle_abts(vha, abts, sess);
|
|
if (rc != 0) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
|
|
"qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
|
|
vha->vp_idx, rc);
|
|
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
|
|
false);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair,
|
|
struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
|
|
{
|
|
struct scsi_qla_host *ha = mcmd->vha;
|
|
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",
|
|
ha, atio, resp_code);
|
|
|
|
|
|
ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL);
|
|
if (ctio == NULL) {
|
|
ql_dbg(ql_dbg_tgt, ha, 0xe04c,
|
|
"qla_target(%d): %s failed: unable to allocate "
|
|
"request packet\n", ha->vp_idx, __func__);
|
|
return;
|
|
}
|
|
|
|
ctio->entry_type = CTIO_TYPE7;
|
|
ctio->entry_count = 1;
|
|
ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
|
|
ctio->nport_handle = mcmd->sess->loop_id;
|
|
ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
|
|
ctio->vp_index = ha->vp_idx;
|
|
ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
|
|
ctio->exchange_addr = atio->u.isp24.exchange_addr;
|
|
temp = (atio->u.isp24.attr << 9)|
|
|
CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
|
|
ctio->u.status1.flags = cpu_to_le16(temp);
|
|
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 =
|
|
cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
|
|
ctio->u.status1.response_len = cpu_to_le16(8);
|
|
ctio->u.status1.sense_data[0] = resp_code;
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(ha, qpair->req);
|
|
}
|
|
|
|
void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
|
|
{
|
|
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
|
|
}
|
|
EXPORT_SYMBOL(qlt_free_mcmd);
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then
|
|
* reacquire
|
|
*/
|
|
void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
|
|
uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq)
|
|
{
|
|
struct atio_from_isp *atio = &cmd->atio;
|
|
struct ctio7_to_24xx *ctio;
|
|
uint16_t temp;
|
|
struct scsi_qla_host *vha = cmd->vha;
|
|
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0x3066,
|
|
"Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
|
|
"sense_key=%02x, asc=%02x, ascq=%02x",
|
|
vha, atio, scsi_status, sense_key, asc, ascq);
|
|
|
|
ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
|
|
if (!ctio) {
|
|
ql_dbg(ql_dbg_async, vha, 0x3067,
|
|
"qla2x00t(%ld): %s failed: unable to allocate request packet",
|
|
vha->host_no, __func__);
|
|
goto out;
|
|
}
|
|
|
|
ctio->entry_type = CTIO_TYPE7;
|
|
ctio->entry_count = 1;
|
|
ctio->handle = QLA_TGT_SKIP_HANDLE;
|
|
ctio->nport_handle = cmd->sess->loop_id;
|
|
ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
|
|
ctio->vp_index = vha->vp_idx;
|
|
ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
|
|
ctio->exchange_addr = atio->u.isp24.exchange_addr;
|
|
temp = (atio->u.isp24.attr << 9) |
|
|
CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
|
|
ctio->u.status1.flags = cpu_to_le16(temp);
|
|
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 =
|
|
cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status);
|
|
ctio->u.status1.response_len = cpu_to_le16(18);
|
|
ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
|
|
|
|
if (ctio->u.status1.residual != 0)
|
|
ctio->u.status1.scsi_status |=
|
|
cpu_to_le16(SS_RESIDUAL_UNDER);
|
|
|
|
/* Fixed format sense data. */
|
|
ctio->u.status1.sense_data[0] = 0x70;
|
|
ctio->u.status1.sense_data[2] = sense_key;
|
|
/* Additional sense length */
|
|
ctio->u.status1.sense_data[7] = 0xa;
|
|
/* ASC and ASCQ */
|
|
ctio->u.status1.sense_data[12] = asc;
|
|
ctio->u.status1.sense_data[13] = ascq;
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
|
|
out:
|
|
return;
|
|
}
|
|
|
|
/* callback from target fabric module code */
|
|
void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
|
|
{
|
|
struct scsi_qla_host *vha = mcmd->sess->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
unsigned long flags;
|
|
struct qla_qpair *qpair = mcmd->qpair;
|
|
bool free_mcmd = true;
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
|
|
"TM response mcmd (%p) status %#x state %#x",
|
|
mcmd, mcmd->fc_tm_rsp, mcmd->flags);
|
|
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
|
|
if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
|
|
/*
|
|
* Either the port is not online or this request was from
|
|
* previous life, just abort the processing.
|
|
*/
|
|
ql_dbg(ql_dbg_async, vha, 0xe100,
|
|
"RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
|
|
vha->flags.online, qla2x00_reset_active(vha),
|
|
mcmd->reset_count, qpair->chip_reset);
|
|
ha->tgt.tgt_ops->free_mcmd(mcmd);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
return;
|
|
}
|
|
|
|
if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) {
|
|
switch (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode) {
|
|
case ELS_LOGO:
|
|
case ELS_PRLO:
|
|
case ELS_TPRLO:
|
|
ql_dbg(ql_dbg_disc, vha, 0x2106,
|
|
"TM response logo %8phC status %#x state %#x",
|
|
mcmd->sess->port_name, mcmd->fc_tm_rsp,
|
|
mcmd->flags);
|
|
qlt_schedule_sess_for_deletion(mcmd->sess);
|
|
break;
|
|
default:
|
|
qlt_send_notify_ack(vha->hw->base_qpair,
|
|
&mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
|
|
break;
|
|
}
|
|
} else {
|
|
if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) {
|
|
qlt_build_abts_resp_iocb(mcmd);
|
|
free_mcmd = false;
|
|
} else
|
|
qlt_24xx_send_task_mgmt_ctio(qpair, mcmd,
|
|
mcmd->fc_tm_rsp);
|
|
}
|
|
/*
|
|
* Make the callback for ->free_mcmd() to queue_work() and invoke
|
|
* target_put_sess_cmd() to drop cmd_kref to 1. The final
|
|
* target_put_sess_cmd() call will be made from TFO->check_stop_free()
|
|
* -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
|
|
* descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
|
|
* qlt_xmit_tm_rsp() returns here..
|
|
*/
|
|
if (free_mcmd)
|
|
ha->tgt.tgt_ops->free_mcmd(mcmd);
|
|
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
}
|
|
EXPORT_SYMBOL(qlt_xmit_tm_rsp);
|
|
|
|
/* No locks */
|
|
static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
|
|
{
|
|
struct qla_tgt_cmd *cmd = prm->cmd;
|
|
|
|
BUG_ON(cmd->sg_cnt == 0);
|
|
|
|
prm->sg = (struct scatterlist *)cmd->sg;
|
|
prm->seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, cmd->sg,
|
|
cmd->sg_cnt, cmd->dma_data_direction);
|
|
if (unlikely(prm->seg_cnt == 0))
|
|
goto out_err;
|
|
|
|
prm->cmd->sg_mapped = 1;
|
|
|
|
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 > QLA_TGT_DATASEGS_PER_CMD_24XX)
|
|
prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
|
|
QLA_TGT_DATASEGS_PER_CMD_24XX,
|
|
QLA_TGT_DATASEGS_PER_CONT_24XX);
|
|
} 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 = dma_map_sg(&cmd->qpair->pdev->dev,
|
|
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;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
out_err:
|
|
ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d,
|
|
"qla_target(%d): PCI mapping failed: sg_cnt=%d",
|
|
0, prm->cmd->sg_cnt);
|
|
return -1;
|
|
}
|
|
|
|
static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
|
|
{
|
|
struct qla_hw_data *ha;
|
|
struct qla_qpair *qpair;
|
|
|
|
if (!cmd->sg_mapped)
|
|
return;
|
|
|
|
qpair = cmd->qpair;
|
|
|
|
dma_unmap_sg(&qpair->pdev->dev, cmd->sg, cmd->sg_cnt,
|
|
cmd->dma_data_direction);
|
|
cmd->sg_mapped = 0;
|
|
|
|
if (cmd->prot_sg_cnt)
|
|
dma_unmap_sg(&qpair->pdev->dev, cmd->prot_sg, cmd->prot_sg_cnt,
|
|
cmd->dma_data_direction);
|
|
|
|
if (!cmd->ctx)
|
|
return;
|
|
ha = vha->hw;
|
|
if (cmd->ctx_dsd_alloced)
|
|
qla2x00_clean_dsd_pool(ha, cmd->ctx);
|
|
|
|
dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma);
|
|
}
|
|
|
|
static int qlt_check_reserve_free_req(struct qla_qpair *qpair,
|
|
uint32_t req_cnt)
|
|
{
|
|
uint32_t cnt;
|
|
struct req_que *req = qpair->req;
|
|
|
|
if (req->cnt < (req_cnt + 2)) {
|
|
cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr :
|
|
RD_REG_DWORD_RELAXED(req->req_q_out));
|
|
|
|
if (req->ring_index < cnt)
|
|
req->cnt = cnt - req->ring_index;
|
|
else
|
|
req->cnt = req->length - (req->ring_index - cnt);
|
|
|
|
if (unlikely(req->cnt < (req_cnt + 2)))
|
|
return -EAGAIN;
|
|
}
|
|
|
|
req->cnt -= req_cnt;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static inline void *qlt_get_req_pkt(struct req_que *req)
|
|
{
|
|
/* Adjust ring index. */
|
|
req->ring_index++;
|
|
if (req->ring_index == req->length) {
|
|
req->ring_index = 0;
|
|
req->ring_ptr = req->ring;
|
|
} else {
|
|
req->ring_ptr++;
|
|
}
|
|
return (cont_entry_t *)req->ring_ptr;
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static inline uint32_t qlt_make_handle(struct qla_qpair *qpair)
|
|
{
|
|
uint32_t h;
|
|
int index;
|
|
uint8_t found = 0;
|
|
struct req_que *req = qpair->req;
|
|
|
|
h = req->current_outstanding_cmd;
|
|
|
|
for (index = 1; index < req->num_outstanding_cmds; index++) {
|
|
h++;
|
|
if (h == req->num_outstanding_cmds)
|
|
h = 1;
|
|
|
|
if (h == QLA_TGT_SKIP_HANDLE)
|
|
continue;
|
|
|
|
if (!req->outstanding_cmds[h]) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found) {
|
|
req->current_outstanding_cmd = h;
|
|
} else {
|
|
ql_dbg(ql_dbg_io, qpair->vha, 0x305b,
|
|
"qla_target(%d): Ran out of empty cmd slots\n",
|
|
qpair->vha->vp_idx);
|
|
h = QLA_TGT_NULL_HANDLE;
|
|
}
|
|
|
|
return h;
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
|
|
struct qla_tgt_prm *prm)
|
|
{
|
|
uint32_t h;
|
|
struct ctio7_to_24xx *pkt;
|
|
struct atio_from_isp *atio = &prm->cmd->atio;
|
|
uint16_t temp;
|
|
|
|
pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr;
|
|
prm->pkt = pkt;
|
|
memset(pkt, 0, sizeof(*pkt));
|
|
|
|
pkt->entry_type = CTIO_TYPE7;
|
|
pkt->entry_count = (uint8_t)prm->req_cnt;
|
|
pkt->vp_index = prm->cmd->vp_idx;
|
|
|
|
h = qlt_make_handle(qpair);
|
|
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
|
|
qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
|
|
|
|
pkt->handle = MAKE_HANDLE(qpair->req->id, h);
|
|
pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
|
|
pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
|
|
pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
|
|
pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
|
|
pkt->exchange_addr = atio->u.isp24.exchange_addr;
|
|
temp = atio->u.isp24.attr << 9;
|
|
pkt->u.status0.flags |= cpu_to_le16(temp);
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. We have already made sure
|
|
* that there is sufficient amount of request entries to not drop it.
|
|
*/
|
|
static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
|
|
{
|
|
int cnt;
|
|
struct dsd64 *cur_dsd;
|
|
|
|
/* Build continuation packets */
|
|
while (prm->seg_cnt > 0) {
|
|
cont_a64_entry_t *cont_pkt64 =
|
|
(cont_a64_entry_t *)qlt_get_req_pkt(
|
|
prm->cmd->qpair->req);
|
|
|
|
/*
|
|
* Make sure that from cont_pkt64 none of
|
|
* 64-bit specific fields used for 32-bit
|
|
* addressing. Cast to (cont_entry_t *) for
|
|
* that.
|
|
*/
|
|
|
|
memset(cont_pkt64, 0, sizeof(*cont_pkt64));
|
|
|
|
cont_pkt64->entry_count = 1;
|
|
cont_pkt64->sys_define = 0;
|
|
|
|
cont_pkt64->entry_type = CONTINUE_A64_TYPE;
|
|
cur_dsd = cont_pkt64->dsd;
|
|
|
|
/* Load continuation entry data segments */
|
|
for (cnt = 0;
|
|
cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt;
|
|
cnt++, prm->seg_cnt--) {
|
|
append_dsd64(&cur_dsd, prm->sg);
|
|
prm->sg = sg_next(prm->sg);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. We have already made sure
|
|
* that there is sufficient amount of request entries to not drop it.
|
|
*/
|
|
static void qlt_load_data_segments(struct qla_tgt_prm *prm)
|
|
{
|
|
int cnt;
|
|
struct dsd64 *cur_dsd;
|
|
struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
|
|
|
|
pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
|
|
|
|
/* Setup packet address segment pointer */
|
|
cur_dsd = &pkt24->u.status0.dsd;
|
|
|
|
/* Set total data segment count */
|
|
if (prm->seg_cnt)
|
|
pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
|
|
|
|
if (prm->seg_cnt == 0) {
|
|
/* No data transfer */
|
|
cur_dsd->address = 0;
|
|
cur_dsd->length = 0;
|
|
return;
|
|
}
|
|
|
|
/* If scatter gather */
|
|
|
|
/* Load command entry data segments */
|
|
for (cnt = 0;
|
|
(cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt;
|
|
cnt++, prm->seg_cnt--) {
|
|
append_dsd64(&cur_dsd, prm->sg);
|
|
prm->sg = sg_next(prm->sg);
|
|
}
|
|
|
|
qlt_load_cont_data_segments(prm);
|
|
}
|
|
|
|
static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
|
|
{
|
|
return cmd->bufflen > 0;
|
|
}
|
|
|
|
static void qlt_print_dif_err(struct qla_tgt_prm *prm)
|
|
{
|
|
struct qla_tgt_cmd *cmd;
|
|
struct scsi_qla_host *vha;
|
|
|
|
/* asc 0x10=dif error */
|
|
if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
|
|
cmd = prm->cmd;
|
|
vha = cmd->vha;
|
|
/* ASCQ */
|
|
switch (prm->sense_buffer[13]) {
|
|
case 1:
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b,
|
|
"BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
|
|
"se_cmd=%p tag[%x]",
|
|
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
|
|
cmd->atio.u.isp24.exchange_addr);
|
|
break;
|
|
case 2:
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c,
|
|
"BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
|
|
"se_cmd=%p tag[%x]",
|
|
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
|
|
cmd->atio.u.isp24.exchange_addr);
|
|
break;
|
|
case 3:
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f,
|
|
"BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
|
|
"se_cmd=%p tag[%x]",
|
|
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
|
|
cmd->atio.u.isp24.exchange_addr);
|
|
break;
|
|
default:
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe010,
|
|
"BE detected Dif ERR: lba[%llx|%lld] len[%x] "
|
|
"se_cmd=%p tag[%x]",
|
|
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
|
|
cmd->atio.u.isp24.exchange_addr);
|
|
break;
|
|
}
|
|
ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Called without ha->hardware_lock held
|
|
*/
|
|
static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
|
|
struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
|
|
uint32_t *full_req_cnt)
|
|
{
|
|
struct se_cmd *se_cmd = &cmd->se_cmd;
|
|
struct qla_qpair *qpair = cmd->qpair;
|
|
|
|
prm->cmd = cmd;
|
|
prm->tgt = cmd->tgt;
|
|
prm->pkt = NULL;
|
|
prm->rq_result = scsi_status;
|
|
prm->sense_buffer = &cmd->sense_buffer[0];
|
|
prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
|
|
prm->sg = NULL;
|
|
prm->seg_cnt = -1;
|
|
prm->req_cnt = 1;
|
|
prm->residual = 0;
|
|
prm->add_status_pkt = 0;
|
|
prm->prot_sg = NULL;
|
|
prm->prot_seg_cnt = 0;
|
|
prm->tot_dsds = 0;
|
|
|
|
if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
|
|
if (qlt_pci_map_calc_cnt(prm) != 0)
|
|
return -EAGAIN;
|
|
}
|
|
|
|
*full_req_cnt = prm->req_cnt;
|
|
|
|
if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
|
|
prm->residual = se_cmd->residual_count;
|
|
ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c,
|
|
"Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
|
|
prm->residual, se_cmd->tag,
|
|
se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
|
|
cmd->bufflen, prm->rq_result);
|
|
prm->rq_result |= SS_RESIDUAL_UNDER;
|
|
} else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
|
|
prm->residual = se_cmd->residual_count;
|
|
ql_dbg_qp(ql_dbg_io, qpair, 0x305d,
|
|
"Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
|
|
prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
|
|
se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
|
|
prm->rq_result |= SS_RESIDUAL_OVER;
|
|
}
|
|
|
|
if (xmit_type & QLA_TGT_XMIT_STATUS) {
|
|
/*
|
|
* If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
|
|
* ignored in *xmit_response() below
|
|
*/
|
|
if (qlt_has_data(cmd)) {
|
|
if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
|
|
(IS_FWI2_CAPABLE(cmd->vha->hw) &&
|
|
(prm->rq_result != 0))) {
|
|
prm->add_status_pkt = 1;
|
|
(*full_req_cnt)++;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
|
|
int sending_sense)
|
|
{
|
|
if (cmd->qpair->enable_class_2)
|
|
return 0;
|
|
|
|
if (sending_sense)
|
|
return cmd->conf_compl_supported;
|
|
else
|
|
return cmd->qpair->enable_explicit_conf &&
|
|
cmd->conf_compl_supported;
|
|
}
|
|
|
|
static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
|
|
struct qla_tgt_prm *prm)
|
|
{
|
|
prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
|
|
(uint32_t)sizeof(ctio->u.status1.sense_data));
|
|
ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
|
|
if (qlt_need_explicit_conf(prm->cmd, 0)) {
|
|
ctio->u.status0.flags |= cpu_to_le16(
|
|
CTIO7_FLAGS_EXPLICIT_CONFORM |
|
|
CTIO7_FLAGS_CONFORM_REQ);
|
|
}
|
|
ctio->u.status0.residual = cpu_to_le32(prm->residual);
|
|
ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
|
|
if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
|
|
int i;
|
|
|
|
if (qlt_need_explicit_conf(prm->cmd, 1)) {
|
|
if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
|
|
ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017,
|
|
"Skipping EXPLICIT_CONFORM and "
|
|
"CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
|
|
"non GOOD status\n");
|
|
goto skip_explict_conf;
|
|
}
|
|
ctio->u.status1.flags |= cpu_to_le16(
|
|
CTIO7_FLAGS_EXPLICIT_CONFORM |
|
|
CTIO7_FLAGS_CONFORM_REQ);
|
|
}
|
|
skip_explict_conf:
|
|
ctio->u.status1.flags &=
|
|
~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
|
|
ctio->u.status1.flags |=
|
|
cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
|
|
ctio->u.status1.scsi_status |=
|
|
cpu_to_le16(SS_SENSE_LEN_VALID);
|
|
ctio->u.status1.sense_length =
|
|
cpu_to_le16(prm->sense_buffer_len);
|
|
for (i = 0; i < prm->sense_buffer_len/4; i++)
|
|
((uint32_t *)ctio->u.status1.sense_data)[i] =
|
|
cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]);
|
|
|
|
qlt_print_dif_err(prm);
|
|
|
|
} else {
|
|
ctio->u.status1.flags &=
|
|
~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
|
|
ctio->u.status1.flags |=
|
|
cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
|
|
ctio->u.status1.sense_length = 0;
|
|
memset(ctio->u.status1.sense_data, 0,
|
|
sizeof(ctio->u.status1.sense_data));
|
|
}
|
|
|
|
/* Sense with len > 24, is it possible ??? */
|
|
}
|
|
|
|
static inline int
|
|
qlt_hba_err_chk_enabled(struct se_cmd *se_cmd)
|
|
{
|
|
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;
|
|
}
|
|
|
|
static inline int
|
|
qla_tgt_ref_mask_check(struct se_cmd *se_cmd)
|
|
{
|
|
switch (se_cmd->prot_op) {
|
|
case TARGET_PROT_DIN_INSERT:
|
|
case TARGET_PROT_DOUT_INSERT:
|
|
case TARGET_PROT_DIN_STRIP:
|
|
case TARGET_PROT_DOUT_STRIP:
|
|
case TARGET_PROT_DIN_PASS:
|
|
case TARGET_PROT_DOUT_PASS:
|
|
return 1;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command
|
|
*/
|
|
static void
|
|
qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx,
|
|
uint16_t *pfw_prot_opts)
|
|
{
|
|
struct se_cmd *se_cmd = &cmd->se_cmd;
|
|
uint32_t lba = 0xffffffff & se_cmd->t_task_lba;
|
|
scsi_qla_host_t *vha = cmd->tgt->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
uint32_t t32 = 0;
|
|
|
|
/*
|
|
* wait till 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;
|
|
|
|
if (IS_PI_UNINIT_CAPABLE(ha)) {
|
|
if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
|
|
(se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
|
|
*pfw_prot_opts |= PO_DIS_VALD_APP_ESC;
|
|
else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
|
|
*pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
|
|
}
|
|
|
|
t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts);
|
|
|
|
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);
|
|
/* 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;
|
|
case TARGET_DIF_TYPE1_PROT:
|
|
/*
|
|
* For TYPE 1 protection: 16 bit GUARD tag, 32 bit
|
|
* REF tag, and 16 bit app tag.
|
|
*/
|
|
ctx->ref_tag = cpu_to_le32(lba);
|
|
if (!qla_tgt_ref_mask_check(se_cmd) ||
|
|
!(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
|
|
*pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
|
|
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;
|
|
case TARGET_DIF_TYPE2_PROT:
|
|
/*
|
|
* For TYPE 2 protection: 16 bit GUARD + 32 bit REF
|
|
* tag has to match LBA in CDB + N
|
|
*/
|
|
ctx->ref_tag = cpu_to_le32(lba);
|
|
if (!qla_tgt_ref_mask_check(se_cmd) ||
|
|
!(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
|
|
*pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
|
|
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;
|
|
case TARGET_DIF_TYPE3_PROT:
|
|
/* For TYPE 3 protection: 16 bit GUARD only */
|
|
*pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
|
|
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_qpair *qpair, struct qla_tgt_prm *prm)
|
|
{
|
|
struct dsd64 *cur_dsd;
|
|
uint32_t transfer_length = 0;
|
|
uint32_t data_bytes;
|
|
uint32_t dif_bytes;
|
|
uint8_t bundling = 1;
|
|
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;
|
|
struct qla_tc_param tc;
|
|
uint16_t t16;
|
|
scsi_qla_host_t *vha = cmd->vha;
|
|
|
|
ha = vha->hw;
|
|
|
|
pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr;
|
|
prm->pkt = pkt;
|
|
memset(pkt, 0, sizeof(*pkt));
|
|
|
|
ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071,
|
|
"qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
|
|
cmd->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;
|
|
if (cmd->prot_sg_cnt)
|
|
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 = cmd->vp_idx;
|
|
|
|
h = qlt_make_handle(qpair);
|
|
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
|
|
qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
|
|
|
|
pkt->handle = MAKE_HANDLE(qpair->req->id, h);
|
|
pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
|
|
pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
|
|
pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
|
|
pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
|
|
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 = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
|
|
else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
|
|
pkt->flags = 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_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
|
|
|
|
if (!crc_ctx_pkt)
|
|
goto crc_queuing_error;
|
|
|
|
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;
|
|
|
|
qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts);
|
|
|
|
put_unaligned_le64(crc_ctx_dma, &pkt->crc_context_address);
|
|
pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
|
|
|
|
if (!bundling) {
|
|
cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
|
|
} 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 = &crc_ctx_pkt->u.bundling.data_dsd[0];
|
|
}
|
|
|
|
/* 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 = cpu_to_le16(0);
|
|
|
|
memset((uint8_t *)&tc, 0 , sizeof(tc));
|
|
tc.vha = vha;
|
|
tc.blk_sz = cmd->blk_sz;
|
|
tc.bufflen = cmd->bufflen;
|
|
tc.sg = cmd->sg;
|
|
tc.prot_sg = cmd->prot_sg;
|
|
tc.ctx = crc_ctx_pkt;
|
|
tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced;
|
|
|
|
/* Walks data segments */
|
|
pkt->flags |= 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, &tc))
|
|
goto crc_queuing_error;
|
|
} else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd,
|
|
(prm->tot_dsds - prm->prot_seg_cnt), &tc))
|
|
goto crc_queuing_error;
|
|
|
|
if (bundling && prm->prot_seg_cnt) {
|
|
/* Walks dif segments */
|
|
pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA;
|
|
|
|
cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
|
|
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 */
|
|
qpair->req->outstanding_cmds[h] = NULL;
|
|
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
/*
|
|
* Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
|
|
* QLA_TGT_XMIT_STATUS for >= 24xx silicon
|
|
*/
|
|
int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
|
|
uint8_t scsi_status)
|
|
{
|
|
struct scsi_qla_host *vha = cmd->vha;
|
|
struct qla_qpair *qpair = cmd->qpair;
|
|
struct ctio7_to_24xx *pkt;
|
|
struct qla_tgt_prm prm;
|
|
uint32_t full_req_cnt = 0;
|
|
unsigned long flags = 0;
|
|
int res;
|
|
|
|
if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
|
|
(cmd->sess && cmd->sess->deleted)) {
|
|
cmd->state = QLA_TGT_STATE_PROCESSED;
|
|
res = 0;
|
|
goto free;
|
|
}
|
|
|
|
ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018,
|
|
"is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
|
|
(xmit_type & QLA_TGT_XMIT_STATUS) ?
|
|
1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction,
|
|
&cmd->se_cmd, qpair->id);
|
|
|
|
res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
|
|
&full_req_cnt);
|
|
if (unlikely(res != 0))
|
|
goto free;
|
|
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
|
|
if (xmit_type == QLA_TGT_XMIT_STATUS)
|
|
qpair->tgt_counters.core_qla_snd_status++;
|
|
else
|
|
qpair->tgt_counters.core_qla_que_buf++;
|
|
|
|
if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
|
|
/*
|
|
* Either the port is not online or this request was from
|
|
* previous life, just abort the processing.
|
|
*/
|
|
cmd->state = QLA_TGT_STATE_PROCESSED;
|
|
ql_dbg_qp(ql_dbg_async, qpair, 0xe101,
|
|
"RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
|
|
vha->flags.online, qla2x00_reset_active(vha),
|
|
cmd->reset_count, qpair->chip_reset);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
res = 0;
|
|
goto free;
|
|
}
|
|
|
|
/* Does F/W have an IOCBs for this request */
|
|
res = qlt_check_reserve_free_req(qpair, full_req_cnt);
|
|
if (unlikely(res))
|
|
goto out_unmap_unlock;
|
|
|
|
if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA))
|
|
res = qlt_build_ctio_crc2_pkt(qpair, &prm);
|
|
else
|
|
res = qlt_24xx_build_ctio_pkt(qpair, &prm);
|
|
if (unlikely(res != 0)) {
|
|
qpair->req->cnt += full_req_cnt;
|
|
goto out_unmap_unlock;
|
|
}
|
|
|
|
pkt = (struct ctio7_to_24xx *)prm.pkt;
|
|
|
|
if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
|
|
pkt->u.status0.flags |=
|
|
cpu_to_le16(CTIO7_FLAGS_DATA_IN |
|
|
CTIO7_FLAGS_STATUS_MODE_0);
|
|
|
|
if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
|
|
qlt_load_data_segments(&prm);
|
|
|
|
if (prm.add_status_pkt == 0) {
|
|
if (xmit_type & QLA_TGT_XMIT_STATUS) {
|
|
pkt->u.status0.scsi_status =
|
|
cpu_to_le16(prm.rq_result);
|
|
pkt->u.status0.residual =
|
|
cpu_to_le32(prm.residual);
|
|
pkt->u.status0.flags |= cpu_to_le16(
|
|
CTIO7_FLAGS_SEND_STATUS);
|
|
if (qlt_need_explicit_conf(cmd, 0)) {
|
|
pkt->u.status0.flags |=
|
|
cpu_to_le16(
|
|
CTIO7_FLAGS_EXPLICIT_CONFORM |
|
|
CTIO7_FLAGS_CONFORM_REQ);
|
|
}
|
|
}
|
|
|
|
} else {
|
|
/*
|
|
* We have already made sure that there is sufficient
|
|
* amount of request entries to not drop HW lock in
|
|
* req_pkt().
|
|
*/
|
|
struct ctio7_to_24xx *ctio =
|
|
(struct ctio7_to_24xx *)qlt_get_req_pkt(
|
|
qpair->req);
|
|
|
|
ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e,
|
|
"Building additional status packet 0x%p.\n",
|
|
ctio);
|
|
|
|
/*
|
|
* 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 &= ~cpu_to_le16(
|
|
CTIO7_FLAGS_DATA_IN);
|
|
|
|
/* Real finish is ctio_m1's finish */
|
|
pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
|
|
pkt->u.status0.flags |= 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);
|
|
}
|
|
} else
|
|
qlt_24xx_init_ctio_to_isp(pkt, &prm);
|
|
|
|
|
|
cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */
|
|
cmd->cmd_sent_to_fw = 1;
|
|
cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
|
|
return 0;
|
|
|
|
out_unmap_unlock:
|
|
qlt_unmap_sg(vha, cmd);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
|
|
free:
|
|
vha->hw->tgt.tgt_ops->free_cmd(cmd);
|
|
return res;
|
|
}
|
|
EXPORT_SYMBOL(qlt_xmit_response);
|
|
|
|
int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
|
|
{
|
|
struct ctio7_to_24xx *pkt;
|
|
struct scsi_qla_host *vha = cmd->vha;
|
|
struct qla_tgt *tgt = cmd->tgt;
|
|
struct qla_tgt_prm prm;
|
|
unsigned long flags = 0;
|
|
int res = 0;
|
|
struct qla_qpair *qpair = cmd->qpair;
|
|
|
|
memset(&prm, 0, sizeof(prm));
|
|
prm.cmd = cmd;
|
|
prm.tgt = tgt;
|
|
prm.sg = NULL;
|
|
prm.req_cnt = 1;
|
|
|
|
/* Calculate number of entries and segments required */
|
|
if (qlt_pci_map_calc_cnt(&prm) != 0)
|
|
return -EAGAIN;
|
|
|
|
if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
|
|
(cmd->sess && cmd->sess->deleted)) {
|
|
/*
|
|
* Either the port is not online or this request was from
|
|
* previous life, just abort the processing.
|
|
*/
|
|
cmd->aborted = 1;
|
|
cmd->write_data_transferred = 0;
|
|
cmd->state = QLA_TGT_STATE_DATA_IN;
|
|
vha->hw->tgt.tgt_ops->handle_data(cmd);
|
|
ql_dbg_qp(ql_dbg_async, qpair, 0xe102,
|
|
"RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
|
|
vha->flags.online, qla2x00_reset_active(vha),
|
|
cmd->reset_count, qpair->chip_reset);
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
/* Does F/W have an IOCBs for this request */
|
|
res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
|
|
if (res != 0)
|
|
goto out_unlock_free_unmap;
|
|
if (cmd->se_cmd.prot_op)
|
|
res = qlt_build_ctio_crc2_pkt(qpair, &prm);
|
|
else
|
|
res = qlt_24xx_build_ctio_pkt(qpair, &prm);
|
|
|
|
if (unlikely(res != 0)) {
|
|
qpair->req->cnt += prm.req_cnt;
|
|
goto out_unlock_free_unmap;
|
|
}
|
|
|
|
pkt = (struct ctio7_to_24xx *)prm.pkt;
|
|
pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
|
|
CTIO7_FLAGS_STATUS_MODE_0);
|
|
|
|
if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
|
|
qlt_load_data_segments(&prm);
|
|
|
|
cmd->state = QLA_TGT_STATE_NEED_DATA;
|
|
cmd->cmd_sent_to_fw = 1;
|
|
cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
|
|
return res;
|
|
|
|
out_unlock_free_unmap:
|
|
qlt_unmap_sg(vha, cmd);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
|
|
return res;
|
|
}
|
|
EXPORT_SYMBOL(qlt_rdy_to_xfer);
|
|
|
|
|
|
/*
|
|
* it is assumed either hardware_lock or qpair lock is held.
|
|
*/
|
|
static void
|
|
qlt_handle_dif_error(struct qla_qpair *qpair, 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];
|
|
uint64_t lba = cmd->se_cmd.t_task_lba;
|
|
uint8_t scsi_status, sense_key, asc, ascq;
|
|
unsigned long flags;
|
|
struct scsi_qla_host *vha = cmd->vha;
|
|
|
|
cmd->trc_flags |= TRC_DIF_ERR;
|
|
|
|
cmd->a_guard = get_unaligned_be16(ap + 0);
|
|
cmd->a_app_tag = get_unaligned_be16(ap + 2);
|
|
cmd->a_ref_tag = get_unaligned_be32(ap + 4);
|
|
|
|
cmd->e_guard = get_unaligned_be16(ep + 0);
|
|
cmd->e_app_tag = get_unaligned_be16(ep + 2);
|
|
cmd->e_ref_tag = get_unaligned_be32(ep + 4);
|
|
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
|
|
"%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
|
|
|
|
scsi_status = sense_key = asc = ascq = 0;
|
|
|
|
/* check appl tag */
|
|
if (cmd->e_app_tag != cmd->a_app_tag) {
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d,
|
|
"App Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]",
|
|
cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
|
|
cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
|
|
cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
|
|
cmd->atio.u.isp24.fcp_hdr.ox_id);
|
|
|
|
cmd->dif_err_code = DIF_ERR_APP;
|
|
scsi_status = SAM_STAT_CHECK_CONDITION;
|
|
sense_key = ABORTED_COMMAND;
|
|
asc = 0x10;
|
|
ascq = 0x2;
|
|
}
|
|
|
|
/* check ref tag */
|
|
if (cmd->e_ref_tag != cmd->a_ref_tag) {
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e,
|
|
"Ref Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard[%x|%x] cmd=%p ox_id[%04x] ",
|
|
cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
|
|
cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
|
|
cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
|
|
cmd->atio.u.isp24.fcp_hdr.ox_id);
|
|
|
|
cmd->dif_err_code = DIF_ERR_REF;
|
|
scsi_status = SAM_STAT_CHECK_CONDITION;
|
|
sense_key = ABORTED_COMMAND;
|
|
asc = 0x10;
|
|
ascq = 0x3;
|
|
goto out;
|
|
}
|
|
|
|
/* check guard */
|
|
if (cmd->e_guard != cmd->a_guard) {
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe012,
|
|
"Guard ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]",
|
|
cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
|
|
cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
|
|
cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
|
|
cmd->atio.u.isp24.fcp_hdr.ox_id);
|
|
|
|
cmd->dif_err_code = DIF_ERR_GRD;
|
|
scsi_status = SAM_STAT_CHECK_CONDITION;
|
|
sense_key = ABORTED_COMMAND;
|
|
asc = 0x10;
|
|
ascq = 0x1;
|
|
}
|
|
out:
|
|
switch (cmd->state) {
|
|
case QLA_TGT_STATE_NEED_DATA:
|
|
/* handle_data will load DIF error code */
|
|
cmd->state = QLA_TGT_STATE_DATA_IN;
|
|
vha->hw->tgt.tgt_ops->handle_data(cmd);
|
|
break;
|
|
default:
|
|
spin_lock_irqsave(&cmd->cmd_lock, flags);
|
|
if (cmd->aborted) {
|
|
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
|
|
vha->hw->tgt.tgt_ops->free_cmd(cmd);
|
|
break;
|
|
}
|
|
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
|
|
|
|
qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
|
|
ascq);
|
|
/* assume scsi status gets out on the wire.
|
|
* Will not wait for completion.
|
|
*/
|
|
vha->hw->tgt.tgt_ops->free_cmd(cmd);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* 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_imm_notif(struct scsi_qla_host *vha,
|
|
struct imm_ntfy_from_isp *ntfy)
|
|
{
|
|
struct nack_to_isp *nack;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
request_t *pkt;
|
|
int ret = 0;
|
|
|
|
ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c,
|
|
"Sending TERM ELS CTIO (ha=%p)\n", ha);
|
|
|
|
pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
|
|
if (pkt == NULL) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe080,
|
|
"qla_target(%d): %s failed: unable to allocate "
|
|
"request packet\n", vha->vp_idx, __func__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
pkt->entry_type = NOTIFY_ACK_TYPE;
|
|
pkt->entry_count = 1;
|
|
pkt->handle = QLA_TGT_SKIP_HANDLE;
|
|
|
|
nack = (struct nack_to_isp *)pkt;
|
|
nack->ox_id = ntfy->ox_id;
|
|
|
|
nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
|
|
if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
|
|
nack->u.isp24.flags = ntfy->u.isp24.flags &
|
|
__constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
|
|
}
|
|
|
|
/* terminate */
|
|
nack->u.isp24.flags |=
|
|
__constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE);
|
|
|
|
nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
|
|
nack->u.isp24.status = ntfy->u.isp24.status;
|
|
nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
|
|
nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
|
|
nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
|
|
nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
|
|
nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
|
|
nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
|
|
|
|
qla2x00_start_iocbs(vha, vha->req);
|
|
return ret;
|
|
}
|
|
|
|
static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
|
|
struct imm_ntfy_from_isp *imm, int ha_locked)
|
|
{
|
|
int rc;
|
|
|
|
WARN_ON_ONCE(!ha_locked);
|
|
rc = __qlt_send_term_imm_notif(vha, imm);
|
|
pr_debug("rc = %d\n", rc);
|
|
}
|
|
|
|
/*
|
|
* 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 qla_qpair *qpair,
|
|
struct qla_tgt_cmd *cmd,
|
|
struct atio_from_isp *atio)
|
|
{
|
|
struct scsi_qla_host *vha = qpair->vha;
|
|
struct ctio7_to_24xx *ctio24;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
request_t *pkt;
|
|
int ret = 0;
|
|
uint16_t temp;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
|
|
|
|
if (cmd)
|
|
vha = cmd->vha;
|
|
|
|
pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL);
|
|
if (pkt == NULL) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe050,
|
|
"qla_target(%d): %s failed: unable to allocate "
|
|
"request packet\n", vha->vp_idx, __func__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (cmd != NULL) {
|
|
if (cmd->state < QLA_TGT_STATE_PROCESSED) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe051,
|
|
"qla_target(%d): Terminating cmd %p with "
|
|
"incorrect state %d\n", vha->vp_idx, cmd,
|
|
cmd->state);
|
|
} else
|
|
ret = 1;
|
|
}
|
|
|
|
qpair->tgt_counters.num_term_xchg_sent++;
|
|
pkt->entry_count = 1;
|
|
pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
|
|
|
|
ctio24 = (struct ctio7_to_24xx *)pkt;
|
|
ctio24->entry_type = CTIO_TYPE7;
|
|
ctio24->nport_handle = CTIO7_NHANDLE_UNRECOGNIZED;
|
|
ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
|
|
ctio24->vp_index = vha->vp_idx;
|
|
ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
|
|
ctio24->exchange_addr = atio->u.isp24.exchange_addr;
|
|
temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 |
|
|
CTIO7_FLAGS_TERMINATE;
|
|
ctio24->u.status1.flags = cpu_to_le16(temp);
|
|
temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
|
|
ctio24->u.status1.ox_id = cpu_to_le16(temp);
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
return ret;
|
|
}
|
|
|
|
static void qlt_send_term_exchange(struct qla_qpair *qpair,
|
|
struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
|
|
int ul_abort)
|
|
{
|
|
struct scsi_qla_host *vha;
|
|
unsigned long flags = 0;
|
|
int rc;
|
|
|
|
/* why use different vha? NPIV */
|
|
if (cmd)
|
|
vha = cmd->vha;
|
|
else
|
|
vha = qpair->vha;
|
|
|
|
if (ha_locked) {
|
|
rc = __qlt_send_term_exchange(qpair, cmd, atio);
|
|
if (rc == -ENOMEM)
|
|
qlt_alloc_qfull_cmd(vha, atio, 0, 0);
|
|
goto done;
|
|
}
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
rc = __qlt_send_term_exchange(qpair, cmd, atio);
|
|
if (rc == -ENOMEM)
|
|
qlt_alloc_qfull_cmd(vha, atio, 0, 0);
|
|
|
|
done:
|
|
if (cmd && !ul_abort && !cmd->aborted) {
|
|
if (cmd->sg_mapped)
|
|
qlt_unmap_sg(vha, cmd);
|
|
vha->hw->tgt.tgt_ops->free_cmd(cmd);
|
|
}
|
|
|
|
if (!ha_locked)
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
|
|
return;
|
|
}
|
|
|
|
static void qlt_init_term_exchange(struct scsi_qla_host *vha)
|
|
{
|
|
struct list_head free_list;
|
|
struct qla_tgt_cmd *cmd, *tcmd;
|
|
|
|
vha->hw->tgt.leak_exchg_thresh_hold =
|
|
(vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT;
|
|
|
|
cmd = tcmd = NULL;
|
|
if (!list_empty(&vha->hw->tgt.q_full_list)) {
|
|
INIT_LIST_HEAD(&free_list);
|
|
list_splice_init(&vha->hw->tgt.q_full_list, &free_list);
|
|
|
|
list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
|
|
list_del(&cmd->cmd_list);
|
|
/* This cmd was never sent to TCM. There is no need
|
|
* to schedule free or call free_cmd
|
|
*/
|
|
qlt_free_cmd(cmd);
|
|
vha->hw->tgt.num_qfull_cmds_alloc--;
|
|
}
|
|
}
|
|
vha->hw->tgt.num_qfull_cmds_dropped = 0;
|
|
}
|
|
|
|
static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
|
|
{
|
|
uint32_t total_leaked;
|
|
|
|
total_leaked = vha->hw->tgt.num_qfull_cmds_dropped;
|
|
|
|
if (vha->hw->tgt.leak_exchg_thresh_hold &&
|
|
(total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) {
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe079,
|
|
"Chip reset due to exchange starvation: %d/%d.\n",
|
|
total_leaked, vha->hw->cur_fw_xcb_count);
|
|
|
|
if (IS_P3P_TYPE(vha->hw))
|
|
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
|
|
else
|
|
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
|
|
qla2xxx_wake_dpc(vha);
|
|
}
|
|
|
|
}
|
|
|
|
int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
|
|
{
|
|
struct qla_tgt *tgt = cmd->tgt;
|
|
struct scsi_qla_host *vha = tgt->vha;
|
|
struct se_cmd *se_cmd = &cmd->se_cmd;
|
|
unsigned long flags;
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
|
|
"qla_target(%d): terminating exchange for aborted cmd=%p "
|
|
"(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
|
|
se_cmd->tag);
|
|
|
|
spin_lock_irqsave(&cmd->cmd_lock, flags);
|
|
if (cmd->aborted) {
|
|
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
|
|
/*
|
|
* It's normal to see 2 calls in this path:
|
|
* 1) XFER Rdy completion + CMD_T_ABORT
|
|
* 2) TCM TMR - drain_state_list
|
|
*/
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016,
|
|
"multiple abort. %p transport_state %x, t_state %x, "
|
|
"se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state,
|
|
cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags);
|
|
return EIO;
|
|
}
|
|
cmd->aborted = 1;
|
|
cmd->trc_flags |= TRC_ABORT;
|
|
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
|
|
|
|
qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(qlt_abort_cmd);
|
|
|
|
void qlt_free_cmd(struct qla_tgt_cmd *cmd)
|
|
{
|
|
struct fc_port *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->cmd_in_wq);
|
|
|
|
if (cmd->sg_mapped)
|
|
qlt_unmap_sg(cmd->vha, cmd);
|
|
|
|
if (!cmd->q_full)
|
|
qlt_decr_num_pend_cmds(cmd->vha);
|
|
|
|
BUG_ON(cmd->sg_mapped);
|
|
cmd->jiffies_at_free = get_jiffies_64();
|
|
if (unlikely(cmd->free_sg))
|
|
kfree(cmd->sg);
|
|
|
|
if (!sess || !sess->se_sess) {
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
cmd->jiffies_at_free = get_jiffies_64();
|
|
target_free_tag(sess->se_sess, &cmd->se_cmd);
|
|
}
|
|
EXPORT_SYMBOL(qlt_free_cmd);
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
|
|
struct qla_tgt_cmd *cmd, uint32_t status)
|
|
{
|
|
int term = 0;
|
|
struct scsi_qla_host *vha = qpair->vha;
|
|
|
|
if (cmd->se_cmd.prot_op)
|
|
ql_dbg(ql_dbg_tgt_dif, vha, 0xe013,
|
|
"Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
|
|
"se_cmd=%p tag[%x] op %#x/%s",
|
|
cmd->lba, cmd->lba,
|
|
cmd->num_blks, &cmd->se_cmd,
|
|
cmd->atio.u.isp24.exchange_addr,
|
|
cmd->se_cmd.prot_op,
|
|
prot_op_str(cmd->se_cmd.prot_op));
|
|
|
|
if (ctio != NULL) {
|
|
struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
|
|
|
|
term = !(c->flags &
|
|
cpu_to_le16(OF_TERM_EXCH));
|
|
} else
|
|
term = 1;
|
|
|
|
if (term)
|
|
qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
|
|
|
|
return term;
|
|
}
|
|
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
|
|
struct rsp_que *rsp, uint32_t handle, void *ctio)
|
|
{
|
|
void *cmd = NULL;
|
|
struct req_que *req;
|
|
int qid = GET_QID(handle);
|
|
uint32_t h = handle & ~QLA_TGT_HANDLE_MASK;
|
|
|
|
if (unlikely(h == QLA_TGT_SKIP_HANDLE))
|
|
return NULL;
|
|
|
|
if (qid == rsp->req->id) {
|
|
req = rsp->req;
|
|
} else if (vha->hw->req_q_map[qid]) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a,
|
|
"qla_target(%d): CTIO completion with different QID %d handle %x\n",
|
|
vha->vp_idx, rsp->id, handle);
|
|
req = vha->hw->req_q_map[qid];
|
|
} else {
|
|
return NULL;
|
|
}
|
|
|
|
h &= QLA_CMD_HANDLE_MASK;
|
|
|
|
if (h != QLA_TGT_NULL_HANDLE) {
|
|
if (unlikely(h >= req->num_outstanding_cmds)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe052,
|
|
"qla_target(%d): Wrong handle %x received\n",
|
|
vha->vp_idx, handle);
|
|
return NULL;
|
|
}
|
|
|
|
cmd = (void *) req->outstanding_cmds[h];
|
|
if (unlikely(cmd == NULL)) {
|
|
ql_dbg(ql_dbg_async, vha, 0xe053,
|
|
"qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
|
|
vha->vp_idx, handle, req->id, rsp->id);
|
|
return NULL;
|
|
}
|
|
req->outstanding_cmds[h] = NULL;
|
|
} else if (ctio != NULL) {
|
|
/* We can't get loop ID from CTIO7 */
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe054,
|
|
"qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
|
|
"support NULL handles\n", vha->vp_idx);
|
|
return NULL;
|
|
}
|
|
|
|
return cmd;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
|
|
struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct se_cmd *se_cmd;
|
|
struct qla_tgt_cmd *cmd;
|
|
struct qla_qpair *qpair = rsp->qpair;
|
|
|
|
if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
|
|
/* That could happen only in case of an error/reset/abort */
|
|
if (status != CTIO_SUCCESS) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
|
|
"Intermediate CTIO received"
|
|
" (status %x)\n", status);
|
|
}
|
|
return;
|
|
}
|
|
|
|
cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio);
|
|
if (cmd == NULL)
|
|
return;
|
|
|
|
se_cmd = &cmd->se_cmd;
|
|
cmd->cmd_sent_to_fw = 0;
|
|
|
|
qlt_unmap_sg(vha, cmd);
|
|
|
|
if (unlikely(status != CTIO_SUCCESS)) {
|
|
switch (status & 0xFFFF) {
|
|
case CTIO_INVALID_RX_ID:
|
|
if (printk_ratelimit())
|
|
dev_info(&vha->hw->pdev->dev,
|
|
"qla_target(%d): CTIO with INVALID_RX_ID ATIO attr %x CTIO Flags %x|%x\n",
|
|
vha->vp_idx, cmd->atio.u.isp24.attr,
|
|
((cmd->ctio_flags >> 9) & 0xf),
|
|
cmd->ctio_flags);
|
|
|
|
break;
|
|
case CTIO_LIP_RESET:
|
|
case CTIO_TARGET_RESET:
|
|
case CTIO_ABORTED:
|
|
/* driver request abort via Terminate exchange */
|
|
case CTIO_TIMEOUT:
|
|
/* They are OK */
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
|
|
"qla_target(%d): CTIO with "
|
|
"status %#x received, state %x, se_cmd %p, "
|
|
"(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
|
|
"TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
|
|
status, cmd->state, se_cmd);
|
|
break;
|
|
|
|
case CTIO_PORT_LOGGED_OUT:
|
|
case CTIO_PORT_UNAVAILABLE:
|
|
{
|
|
int logged_out =
|
|
(status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
|
|
"qla_target(%d): CTIO with %s status %x "
|
|
"received (state %x, se_cmd %p)\n", vha->vp_idx,
|
|
logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
|
|
status, cmd->state, se_cmd);
|
|
|
|
if (logged_out && cmd->sess) {
|
|
/*
|
|
* Session is already logged out, but we need
|
|
* to notify initiator, who's not aware of this
|
|
*/
|
|
cmd->sess->send_els_logo = 1;
|
|
ql_dbg(ql_dbg_disc, vha, 0x20f8,
|
|
"%s %d %8phC post del sess\n",
|
|
__func__, __LINE__, cmd->sess->port_name);
|
|
|
|
qlt_schedule_sess_for_deletion(cmd->sess);
|
|
}
|
|
break;
|
|
}
|
|
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, ulp_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]));
|
|
|
|
qlt_handle_dif_error(qpair, cmd, ctio);
|
|
return;
|
|
}
|
|
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",
|
|
vha->vp_idx, status, cmd->state, se_cmd);
|
|
break;
|
|
}
|
|
|
|
|
|
/* "cmd->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->aborted)) {
|
|
cmd->trc_flags |= TRC_CTIO_ERR;
|
|
if (qlt_term_ctio_exchange(qpair, ctio, cmd, status))
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (cmd->state == QLA_TGT_STATE_PROCESSED) {
|
|
cmd->trc_flags |= TRC_CTIO_DONE;
|
|
} else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
|
|
cmd->state = QLA_TGT_STATE_DATA_IN;
|
|
|
|
if (status == CTIO_SUCCESS)
|
|
cmd->write_data_transferred = 1;
|
|
|
|
ha->tgt.tgt_ops->handle_data(cmd);
|
|
return;
|
|
} else if (cmd->aborted) {
|
|
cmd->trc_flags |= TRC_CTIO_ABORTED;
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
|
|
"Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
|
|
} else {
|
|
cmd->trc_flags |= TRC_CTIO_STRANGE;
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
|
|
"qla_target(%d): A command in state (%d) should "
|
|
"not return a CTIO complete\n", vha->vp_idx, cmd->state);
|
|
}
|
|
|
|
if (unlikely(status != CTIO_SUCCESS) &&
|
|
!cmd->aborted) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
|
|
dump_stack();
|
|
}
|
|
|
|
ha->tgt.tgt_ops->free_cmd(cmd);
|
|
}
|
|
|
|
static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
|
|
uint8_t task_codes)
|
|
{
|
|
int fcp_task_attr;
|
|
|
|
switch (task_codes) {
|
|
case ATIO_SIMPLE_QUEUE:
|
|
fcp_task_attr = TCM_SIMPLE_TAG;
|
|
break;
|
|
case ATIO_HEAD_OF_QUEUE:
|
|
fcp_task_attr = TCM_HEAD_TAG;
|
|
break;
|
|
case ATIO_ORDERED_QUEUE:
|
|
fcp_task_attr = TCM_ORDERED_TAG;
|
|
break;
|
|
case ATIO_ACA_QUEUE:
|
|
fcp_task_attr = TCM_ACA_TAG;
|
|
break;
|
|
case ATIO_UNTAGGED:
|
|
fcp_task_attr = TCM_SIMPLE_TAG;
|
|
break;
|
|
default:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
|
|
"qla_target: unknown task code %x, use ORDERED instead\n",
|
|
task_codes);
|
|
fcp_task_attr = TCM_ORDERED_TAG;
|
|
break;
|
|
}
|
|
|
|
return fcp_task_attr;
|
|
}
|
|
|
|
/*
|
|
* Process context for I/O path into tcm_qla2xxx code
|
|
*/
|
|
static void __qlt_do_work(struct qla_tgt_cmd *cmd)
|
|
{
|
|
scsi_qla_host_t *vha = cmd->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess = cmd->sess;
|
|
struct atio_from_isp *atio = &cmd->atio;
|
|
unsigned char *cdb;
|
|
unsigned long flags;
|
|
uint32_t data_length;
|
|
int ret, fcp_task_attr, data_dir, bidi = 0;
|
|
struct qla_qpair *qpair = cmd->qpair;
|
|
|
|
cmd->cmd_in_wq = 0;
|
|
cmd->trc_flags |= TRC_DO_WORK;
|
|
|
|
if (cmd->aborted) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
|
|
"cmd with tag %u is aborted\n",
|
|
cmd->atio.u.isp24.exchange_addr);
|
|
goto out_term;
|
|
}
|
|
|
|
spin_lock_init(&cmd->cmd_lock);
|
|
cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
|
|
cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
|
|
|
|
if (atio->u.isp24.fcp_cmnd.rddata &&
|
|
atio->u.isp24.fcp_cmnd.wrdata) {
|
|
bidi = 1;
|
|
data_dir = DMA_TO_DEVICE;
|
|
} else if (atio->u.isp24.fcp_cmnd.rddata)
|
|
data_dir = DMA_FROM_DEVICE;
|
|
else if (atio->u.isp24.fcp_cmnd.wrdata)
|
|
data_dir = DMA_TO_DEVICE;
|
|
else
|
|
data_dir = DMA_NONE;
|
|
|
|
fcp_task_attr = qlt_get_fcp_task_attr(vha,
|
|
atio->u.isp24.fcp_cmnd.task_attr);
|
|
data_length = get_datalen_for_atio(atio);
|
|
|
|
ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
|
|
fcp_task_attr, data_dir, bidi);
|
|
if (ret != 0)
|
|
goto out_term;
|
|
/*
|
|
* Drop extra session reference from qlt_handle_cmd_for_atio().
|
|
*/
|
|
ha->tgt.tgt_ops->put_sess(sess);
|
|
return;
|
|
|
|
out_term:
|
|
ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
|
|
/*
|
|
* cmd has not sent to target yet, so pass NULL as the second
|
|
* argument to qlt_send_term_exchange() and free the memory here.
|
|
*/
|
|
cmd->trc_flags |= TRC_DO_WORK_ERR;
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0);
|
|
|
|
qlt_decr_num_pend_cmds(vha);
|
|
target_free_tag(sess->se_sess, &cmd->se_cmd);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
|
|
ha->tgt.tgt_ops->put_sess(sess);
|
|
}
|
|
|
|
static void qlt_do_work(struct work_struct *work)
|
|
{
|
|
struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
|
|
scsi_qla_host_t *vha = cmd->vha;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&vha->cmd_list_lock, flags);
|
|
list_del(&cmd->cmd_list);
|
|
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
|
|
|
|
__qlt_do_work(cmd);
|
|
}
|
|
|
|
void qlt_clr_qp_table(struct scsi_qla_host *vha)
|
|
{
|
|
unsigned long flags;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
void *node;
|
|
u64 key = 0;
|
|
|
|
ql_log(ql_log_info, vha, 0x706c,
|
|
"User update Number of Active Qpairs %d\n",
|
|
ha->tgt.num_act_qpairs);
|
|
|
|
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
|
|
|
|
btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
|
|
btree_remove64(&tgt->lun_qpair_map, key);
|
|
|
|
ha->base_qpair->lun_cnt = 0;
|
|
for (key = 0; key < ha->max_qpairs; key++)
|
|
if (ha->queue_pair_map[key])
|
|
ha->queue_pair_map[key]->lun_cnt = 0;
|
|
|
|
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
|
|
}
|
|
|
|
static void qlt_assign_qpair(struct scsi_qla_host *vha,
|
|
struct qla_tgt_cmd *cmd)
|
|
{
|
|
struct qla_qpair *qpair, *qp;
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
struct qla_qpair_hint *h;
|
|
|
|
if (vha->flags.qpairs_available) {
|
|
h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
|
|
if (unlikely(!h)) {
|
|
/* spread lun to qpair ratio evently */
|
|
int lcnt = 0, rc;
|
|
struct scsi_qla_host *base_vha =
|
|
pci_get_drvdata(vha->hw->pdev);
|
|
|
|
qpair = vha->hw->base_qpair;
|
|
if (qpair->lun_cnt == 0) {
|
|
qpair->lun_cnt++;
|
|
h = qla_qpair_to_hint(tgt, qpair);
|
|
BUG_ON(!h);
|
|
rc = btree_insert64(&tgt->lun_qpair_map,
|
|
cmd->unpacked_lun, h, GFP_ATOMIC);
|
|
if (rc) {
|
|
qpair->lun_cnt--;
|
|
ql_log(ql_log_info, vha, 0xd037,
|
|
"Unable to insert lun %llx into lun_qpair_map\n",
|
|
cmd->unpacked_lun);
|
|
}
|
|
goto out;
|
|
} else {
|
|
lcnt = qpair->lun_cnt;
|
|
}
|
|
|
|
h = NULL;
|
|
list_for_each_entry(qp, &base_vha->qp_list,
|
|
qp_list_elem) {
|
|
if (qp->lun_cnt == 0) {
|
|
qp->lun_cnt++;
|
|
h = qla_qpair_to_hint(tgt, qp);
|
|
BUG_ON(!h);
|
|
rc = btree_insert64(&tgt->lun_qpair_map,
|
|
cmd->unpacked_lun, h, GFP_ATOMIC);
|
|
if (rc) {
|
|
qp->lun_cnt--;
|
|
ql_log(ql_log_info, vha, 0xd038,
|
|
"Unable to insert lun %llx into lun_qpair_map\n",
|
|
cmd->unpacked_lun);
|
|
}
|
|
qpair = qp;
|
|
goto out;
|
|
} else {
|
|
if (qp->lun_cnt < lcnt) {
|
|
lcnt = qp->lun_cnt;
|
|
qpair = qp;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
BUG_ON(!qpair);
|
|
qpair->lun_cnt++;
|
|
h = qla_qpair_to_hint(tgt, qpair);
|
|
BUG_ON(!h);
|
|
rc = btree_insert64(&tgt->lun_qpair_map,
|
|
cmd->unpacked_lun, h, GFP_ATOMIC);
|
|
if (rc) {
|
|
qpair->lun_cnt--;
|
|
ql_log(ql_log_info, vha, 0xd039,
|
|
"Unable to insert lun %llx into lun_qpair_map\n",
|
|
cmd->unpacked_lun);
|
|
}
|
|
}
|
|
} else {
|
|
h = &tgt->qphints[0];
|
|
}
|
|
out:
|
|
cmd->qpair = h->qpair;
|
|
cmd->se_cmd.cpuid = h->cpuid;
|
|
}
|
|
|
|
static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
|
|
struct fc_port *sess,
|
|
struct atio_from_isp *atio)
|
|
{
|
|
struct se_session *se_sess = sess->se_sess;
|
|
struct qla_tgt_cmd *cmd;
|
|
int tag, cpu;
|
|
|
|
tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu);
|
|
if (tag < 0)
|
|
return NULL;
|
|
|
|
cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
|
|
memset(cmd, 0, sizeof(struct qla_tgt_cmd));
|
|
cmd->cmd_type = TYPE_TGT_CMD;
|
|
memcpy(&cmd->atio, atio, sizeof(*atio));
|
|
cmd->state = QLA_TGT_STATE_NEW;
|
|
cmd->tgt = vha->vha_tgt.qla_tgt;
|
|
qlt_incr_num_pend_cmds(vha);
|
|
cmd->vha = vha;
|
|
cmd->se_cmd.map_tag = tag;
|
|
cmd->se_cmd.map_cpu = cpu;
|
|
cmd->sess = sess;
|
|
cmd->loop_id = sess->loop_id;
|
|
cmd->conf_compl_supported = sess->conf_compl_supported;
|
|
|
|
cmd->trc_flags = 0;
|
|
cmd->jiffies_at_alloc = get_jiffies_64();
|
|
|
|
cmd->unpacked_lun = scsilun_to_int(
|
|
(struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
|
|
qlt_assign_qpair(vha, cmd);
|
|
cmd->reset_count = vha->hw->base_qpair->chip_reset;
|
|
cmd->vp_idx = vha->vp_idx;
|
|
|
|
return cmd;
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
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 = vha->vha_tgt.qla_tgt;
|
|
struct fc_port *sess;
|
|
struct qla_tgt_cmd *cmd;
|
|
unsigned long flags;
|
|
port_id_t id;
|
|
|
|
if (unlikely(tgt->tgt_stop)) {
|
|
ql_dbg(ql_dbg_io, vha, 0x3061,
|
|
"New command while device %p is shutting down\n", tgt);
|
|
return -ENODEV;
|
|
}
|
|
|
|
id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
|
|
if (IS_SW_RESV_ADDR(id))
|
|
return -EBUSY;
|
|
|
|
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
|
|
if (unlikely(!sess))
|
|
return -EFAULT;
|
|
|
|
/* Another WWN used to have our s_id. Our PLOGI scheduled its
|
|
* session deletion, but it's still in sess_del_work wq */
|
|
if (sess->deleted) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
|
|
"New command while old session %p is being deleted\n",
|
|
sess);
|
|
return -EFAULT;
|
|
}
|
|
|
|
/*
|
|
* Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
|
|
*/
|
|
if (!kref_get_unless_zero(&sess->sess_kref)) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
|
|
"%s: kref_get fail, %8phC oxid %x \n",
|
|
__func__, sess->port_name,
|
|
be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
|
|
return -EFAULT;
|
|
}
|
|
|
|
cmd = qlt_get_tag(vha, sess, atio);
|
|
if (!cmd) {
|
|
ql_dbg(ql_dbg_io, vha, 0x3062,
|
|
"qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
|
|
ha->tgt.tgt_ops->put_sess(sess);
|
|
return -EBUSY;
|
|
}
|
|
|
|
cmd->cmd_in_wq = 1;
|
|
cmd->trc_flags |= TRC_NEW_CMD;
|
|
|
|
spin_lock_irqsave(&vha->cmd_list_lock, flags);
|
|
list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
|
|
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
|
|
|
|
INIT_WORK(&cmd->work, qlt_do_work);
|
|
if (vha->flags.qpairs_available) {
|
|
queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
|
|
} else if (ha->msix_count) {
|
|
if (cmd->atio.u.isp24.fcp_cmnd.rddata)
|
|
queue_work_on(smp_processor_id(), qla_tgt_wq,
|
|
&cmd->work);
|
|
else
|
|
queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,
|
|
&cmd->work);
|
|
} else {
|
|
queue_work(qla_tgt_wq, &cmd->work);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
|
|
int fn, void *iocb, int flags)
|
|
{
|
|
struct scsi_qla_host *vha = sess->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_tgt_mgmt_cmd *mcmd;
|
|
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
|
|
struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
|
|
|
|
mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
|
|
if (!mcmd) {
|
|
ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
|
|
"qla_target(%d): Allocation of management "
|
|
"command failed, some commands and their data could "
|
|
"leak\n", vha->vp_idx);
|
|
return -ENOMEM;
|
|
}
|
|
memset(mcmd, 0, sizeof(*mcmd));
|
|
mcmd->sess = sess;
|
|
|
|
if (iocb) {
|
|
memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
|
|
sizeof(mcmd->orig_iocb.imm_ntfy));
|
|
}
|
|
mcmd->tmr_func = fn;
|
|
mcmd->flags = flags;
|
|
mcmd->reset_count = ha->base_qpair->chip_reset;
|
|
mcmd->qpair = h->qpair;
|
|
mcmd->vha = vha;
|
|
mcmd->se_cmd.cpuid = h->cpuid;
|
|
mcmd->unpacked_lun = lun;
|
|
|
|
switch (fn) {
|
|
case QLA_TGT_LUN_RESET:
|
|
case QLA_TGT_CLEAR_TS:
|
|
case QLA_TGT_ABORT_TS:
|
|
abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id);
|
|
/* fall through */
|
|
case QLA_TGT_CLEAR_ACA:
|
|
h = qlt_find_qphint(vha, mcmd->unpacked_lun);
|
|
mcmd->qpair = h->qpair;
|
|
mcmd->se_cmd.cpuid = h->cpuid;
|
|
break;
|
|
|
|
case QLA_TGT_TARGET_RESET:
|
|
case QLA_TGT_NEXUS_LOSS_SESS:
|
|
case QLA_TGT_NEXUS_LOSS:
|
|
case QLA_TGT_ABORT_ALL:
|
|
default:
|
|
/* no-op */
|
|
break;
|
|
}
|
|
|
|
INIT_WORK(&mcmd->work, qlt_do_tmr_work);
|
|
queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
|
|
&mcmd->work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
|
|
{
|
|
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess;
|
|
u64 unpacked_lun;
|
|
int fn;
|
|
unsigned long flags;
|
|
|
|
fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
|
|
a->u.isp24.fcp_hdr.s_id);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
unpacked_lun =
|
|
scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
|
|
|
|
if (sess == NULL || sess->deleted)
|
|
return -EFAULT;
|
|
|
|
return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static int __qlt_abort_task(struct scsi_qla_host *vha,
|
|
struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
|
|
{
|
|
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_tgt_mgmt_cmd *mcmd;
|
|
u64 unpacked_lun;
|
|
int rc;
|
|
|
|
mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
|
|
if (mcmd == NULL) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
|
|
"qla_target(%d): %s: Allocation of ABORT cmd failed\n",
|
|
vha->vp_idx, __func__);
|
|
return -ENOMEM;
|
|
}
|
|
memset(mcmd, 0, sizeof(*mcmd));
|
|
|
|
mcmd->sess = sess;
|
|
memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
|
|
sizeof(mcmd->orig_iocb.imm_ntfy));
|
|
|
|
unpacked_lun =
|
|
scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
|
|
mcmd->reset_count = ha->base_qpair->chip_reset;
|
|
mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
|
|
mcmd->qpair = ha->base_qpair;
|
|
|
|
rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func,
|
|
le16_to_cpu(iocb->u.isp2x.seq_id));
|
|
if (rc != 0) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
|
|
"qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
|
|
vha->vp_idx, rc);
|
|
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
static int qlt_abort_task(struct scsi_qla_host *vha,
|
|
struct imm_ntfy_from_isp *iocb)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess;
|
|
int loop_id;
|
|
unsigned long flags;
|
|
|
|
loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
if (sess == NULL) {
|
|
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(vha->vha_tgt.qla_tgt,
|
|
QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
|
|
}
|
|
|
|
return __qlt_abort_task(vha, iocb, sess);
|
|
}
|
|
|
|
void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
|
|
{
|
|
if (rc != MBS_COMMAND_COMPLETE) {
|
|
ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093,
|
|
"%s: se_sess %p / sess %p from"
|
|
" port %8phC loop_id %#04x s_id %02x:%02x:%02x"
|
|
" LOGO failed: %#x\n",
|
|
__func__,
|
|
fcport->se_sess,
|
|
fcport,
|
|
fcport->port_name, fcport->loop_id,
|
|
fcport->d_id.b.domain, fcport->d_id.b.area,
|
|
fcport->d_id.b.al_pa, rc);
|
|
}
|
|
|
|
fcport->logout_completed = 1;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list)
|
|
*
|
|
* Schedules sessions with matching port_id/loop_id but different wwn for
|
|
* deletion. Returns existing session with matching wwn if present.
|
|
* Null otherwise.
|
|
*/
|
|
struct fc_port *
|
|
qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
|
|
port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
|
|
{
|
|
struct fc_port *sess = NULL, *other_sess;
|
|
uint64_t other_wwn;
|
|
|
|
*conflict_sess = NULL;
|
|
|
|
list_for_each_entry(other_sess, &vha->vp_fcports, list) {
|
|
|
|
other_wwn = wwn_to_u64(other_sess->port_name);
|
|
|
|
if (wwn == other_wwn) {
|
|
WARN_ON(sess);
|
|
sess = other_sess;
|
|
continue;
|
|
}
|
|
|
|
/* find other sess with nport_id collision */
|
|
if (port_id.b24 == other_sess->d_id.b24) {
|
|
if (loop_id != other_sess->loop_id) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x1000c,
|
|
"Invalidating sess %p loop_id %d wwn %llx.\n",
|
|
other_sess, other_sess->loop_id, other_wwn);
|
|
|
|
/*
|
|
* logout_on_delete is set by default, but another
|
|
* session that has the same s_id/loop_id combo
|
|
* might have cleared it when requested this session
|
|
* deletion, so don't touch it
|
|
*/
|
|
qlt_schedule_sess_for_deletion(other_sess);
|
|
} else {
|
|
/*
|
|
* Another wwn used to have our s_id/loop_id
|
|
* kill the session, but don't free the loop_id
|
|
*/
|
|
ql_dbg(ql_dbg_disc, vha, 0xf01b,
|
|
"Invalidating sess %p loop_id %d wwn %llx.\n",
|
|
other_sess, other_sess->loop_id, other_wwn);
|
|
|
|
other_sess->keep_nport_handle = 1;
|
|
if (other_sess->disc_state != DSC_DELETED)
|
|
*conflict_sess = other_sess;
|
|
qlt_schedule_sess_for_deletion(other_sess);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* find other sess with nport handle collision */
|
|
if ((loop_id == other_sess->loop_id) &&
|
|
(loop_id != FC_NO_LOOP_ID)) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x1000d,
|
|
"Invalidating sess %p loop_id %d wwn %llx.\n",
|
|
other_sess, other_sess->loop_id, other_wwn);
|
|
|
|
/* Same loop_id but different s_id
|
|
* Ok to kill and logout */
|
|
qlt_schedule_sess_for_deletion(other_sess);
|
|
}
|
|
}
|
|
|
|
return sess;
|
|
}
|
|
|
|
/* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
|
|
static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
|
|
{
|
|
struct qla_tgt_sess_op *op;
|
|
struct qla_tgt_cmd *cmd;
|
|
uint32_t key;
|
|
int count = 0;
|
|
unsigned long flags;
|
|
|
|
key = (((u32)s_id->b.domain << 16) |
|
|
((u32)s_id->b.area << 8) |
|
|
((u32)s_id->b.al_pa));
|
|
|
|
spin_lock_irqsave(&vha->cmd_list_lock, flags);
|
|
list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
|
|
uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
|
|
|
|
if (op_key == key) {
|
|
op->aborted = true;
|
|
count++;
|
|
}
|
|
}
|
|
|
|
list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
|
|
uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
|
|
|
|
if (op_key == key) {
|
|
op->aborted = true;
|
|
count++;
|
|
}
|
|
}
|
|
|
|
list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
|
|
uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
|
|
|
|
if (cmd_key == key) {
|
|
cmd->aborted = 1;
|
|
count++;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
|
|
|
|
return count;
|
|
}
|
|
|
|
static int qlt_handle_login(struct scsi_qla_host *vha,
|
|
struct imm_ntfy_from_isp *iocb)
|
|
{
|
|
struct fc_port *sess = NULL, *conflict_sess = NULL;
|
|
uint64_t wwn;
|
|
port_id_t port_id;
|
|
uint16_t loop_id, wd3_lo;
|
|
int res = 0;
|
|
struct qlt_plogi_ack_t *pla;
|
|
unsigned long flags;
|
|
|
|
lockdep_assert_held(&vha->hw->hardware_lock);
|
|
|
|
wwn = wwn_to_u64(iocb->u.isp24.port_name);
|
|
|
|
port_id.b.domain = iocb->u.isp24.port_id[2];
|
|
port_id.b.area = iocb->u.isp24.port_id[1];
|
|
port_id.b.al_pa = iocb->u.isp24.port_id[0];
|
|
port_id.b.rsvd_1 = 0;
|
|
|
|
loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
|
|
|
|
/* Mark all stale commands sitting in qla_tgt_wq for deletion */
|
|
abort_cmds_for_s_id(vha, &port_id);
|
|
|
|
if (wwn) {
|
|
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
|
|
sess = qlt_find_sess_invalidate_other(vha, wwn,
|
|
port_id, loop_id, &conflict_sess);
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
} else {
|
|
ql_dbg(ql_dbg_disc, vha, 0xffff,
|
|
"%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ",
|
|
__func__, __LINE__, loop_id, port_id.b24);
|
|
qlt_send_term_imm_notif(vha, iocb, 1);
|
|
goto out;
|
|
}
|
|
|
|
if (IS_SW_RESV_ADDR(port_id)) {
|
|
res = 1;
|
|
goto out;
|
|
}
|
|
|
|
pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
|
|
if (!pla) {
|
|
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
|
|
"%s %d %8phC Term INOT due to mem alloc fail",
|
|
__func__, __LINE__,
|
|
iocb->u.isp24.port_name);
|
|
qlt_send_term_imm_notif(vha, iocb, 1);
|
|
goto out;
|
|
}
|
|
|
|
if (conflict_sess) {
|
|
conflict_sess->login_gen++;
|
|
qlt_plogi_ack_link(vha, pla, conflict_sess,
|
|
QLT_PLOGI_LINK_CONFLICT);
|
|
}
|
|
|
|
if (!sess) {
|
|
pla->ref_count++;
|
|
ql_dbg(ql_dbg_disc, vha, 0xffff,
|
|
"%s %d %8phC post new sess\n",
|
|
__func__, __LINE__, iocb->u.isp24.port_name);
|
|
if (iocb->u.isp24.status_subcode == ELS_PLOGI)
|
|
qla24xx_post_newsess_work(vha, &port_id,
|
|
iocb->u.isp24.port_name,
|
|
iocb->u.isp24.u.plogi.node_name,
|
|
pla, FC4_TYPE_UNKNOWN);
|
|
else
|
|
qla24xx_post_newsess_work(vha, &port_id,
|
|
iocb->u.isp24.port_name, NULL,
|
|
pla, FC4_TYPE_UNKNOWN);
|
|
|
|
goto out;
|
|
}
|
|
|
|
if (sess->disc_state == DSC_UPD_FCPORT) {
|
|
u16 sec;
|
|
|
|
/*
|
|
* Remote port registration is still going on from
|
|
* previous login. Allow it to finish before we
|
|
* accept the new login.
|
|
*/
|
|
sess->next_disc_state = DSC_DELETE_PEND;
|
|
sec = jiffies_to_msecs(jiffies -
|
|
sess->jiffies_at_registration) / 1000;
|
|
if (sess->sec_since_registration < sec && sec &&
|
|
!(sec % 5)) {
|
|
sess->sec_since_registration = sec;
|
|
ql_dbg(ql_dbg_disc, vha, 0xffff,
|
|
"%s %8phC - Slow Rport registration (%d Sec)\n",
|
|
__func__, sess->port_name, sec);
|
|
}
|
|
|
|
if (!conflict_sess) {
|
|
list_del(&pla->list);
|
|
kmem_cache_free(qla_tgt_plogi_cachep, pla);
|
|
}
|
|
|
|
qlt_send_term_imm_notif(vha, iocb, 1);
|
|
goto out;
|
|
}
|
|
|
|
qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
|
|
sess->d_id = port_id;
|
|
sess->login_gen++;
|
|
|
|
if (iocb->u.isp24.status_subcode == ELS_PRLI) {
|
|
sess->fw_login_state = DSC_LS_PRLI_PEND;
|
|
sess->local = 0;
|
|
sess->loop_id = loop_id;
|
|
sess->d_id = port_id;
|
|
sess->fw_login_state = DSC_LS_PRLI_PEND;
|
|
wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
|
|
|
|
if (wd3_lo & BIT_7)
|
|
sess->conf_compl_supported = 1;
|
|
|
|
if ((wd3_lo & BIT_4) == 0)
|
|
sess->port_type = FCT_INITIATOR;
|
|
else
|
|
sess->port_type = FCT_TARGET;
|
|
|
|
} else
|
|
sess->fw_login_state = DSC_LS_PLOGI_PEND;
|
|
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x20f9,
|
|
"%s %d %8phC DS %d\n",
|
|
__func__, __LINE__, sess->port_name, sess->disc_state);
|
|
|
|
switch (sess->disc_state) {
|
|
case DSC_DELETED:
|
|
case DSC_LOGIN_PEND:
|
|
qlt_plogi_ack_unref(vha, pla);
|
|
break;
|
|
|
|
default:
|
|
/*
|
|
* Under normal circumstances we want to release nport handle
|
|
* during LOGO process to avoid nport handle leaks inside FW.
|
|
* The exception is when LOGO is done while another PLOGI with
|
|
* the same nport handle is waiting as might be the case here.
|
|
* Note: there is always a possibily of a race where session
|
|
* deletion has already started for other reasons (e.g. ACL
|
|
* removal) and now PLOGI arrives:
|
|
* 1. if PLOGI arrived in FW after nport handle has been freed,
|
|
* FW must have assigned this PLOGI a new/same handle and we
|
|
* can proceed ACK'ing it as usual when session deletion
|
|
* completes.
|
|
* 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
|
|
* bit reached it, the handle has now been released. We'll
|
|
* get an error when we ACK this PLOGI. Nothing will be sent
|
|
* back to initiator. Initiator should eventually retry
|
|
* PLOGI and situation will correct itself.
|
|
*/
|
|
sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
|
|
(sess->d_id.b24 == port_id.b24));
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x20f9,
|
|
"%s %d %8phC post del sess\n",
|
|
__func__, __LINE__, sess->port_name);
|
|
|
|
|
|
qlt_schedule_sess_for_deletion(sess);
|
|
break;
|
|
}
|
|
out:
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
|
|
struct imm_ntfy_from_isp *iocb)
|
|
{
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess = NULL, *conflict_sess = NULL;
|
|
uint64_t wwn;
|
|
port_id_t port_id;
|
|
uint16_t loop_id;
|
|
uint16_t wd3_lo;
|
|
int res = 0;
|
|
unsigned long flags;
|
|
|
|
lockdep_assert_held(&ha->hardware_lock);
|
|
|
|
wwn = wwn_to_u64(iocb->u.isp24.port_name);
|
|
|
|
port_id.b.domain = iocb->u.isp24.port_id[2];
|
|
port_id.b.area = iocb->u.isp24.port_id[1];
|
|
port_id.b.al_pa = iocb->u.isp24.port_id[0];
|
|
port_id.b.rsvd_1 = 0;
|
|
|
|
loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0xf026,
|
|
"qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
|
|
vha->vp_idx, iocb->u.isp24.port_id[2],
|
|
iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
|
|
iocb->u.isp24.status_subcode, loop_id,
|
|
iocb->u.isp24.port_name);
|
|
|
|
/* res = 1 means ack at the end of thread
|
|
* res = 0 means ack async/later.
|
|
*/
|
|
switch (iocb->u.isp24.status_subcode) {
|
|
case ELS_PLOGI:
|
|
res = qlt_handle_login(vha, iocb);
|
|
break;
|
|
|
|
case ELS_PRLI:
|
|
if (N2N_TOPO(ha)) {
|
|
sess = qla2x00_find_fcport_by_wwpn(vha,
|
|
iocb->u.isp24.port_name, 1);
|
|
|
|
if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
|
|
ql_dbg(ql_dbg_disc, vha, 0xffff,
|
|
"%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
|
|
__func__, __LINE__,
|
|
iocb->u.isp24.port_name);
|
|
qlt_send_term_imm_notif(vha, iocb, 1);
|
|
break;
|
|
}
|
|
|
|
res = qlt_handle_login(vha, iocb);
|
|
break;
|
|
}
|
|
|
|
if (IS_SW_RESV_ADDR(port_id)) {
|
|
res = 1;
|
|
break;
|
|
}
|
|
|
|
wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
|
|
|
|
if (wwn) {
|
|
spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
|
|
sess = qlt_find_sess_invalidate_other(vha, wwn, port_id,
|
|
loop_id, &conflict_sess);
|
|
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
|
|
}
|
|
|
|
if (conflict_sess) {
|
|
switch (conflict_sess->disc_state) {
|
|
case DSC_DELETED:
|
|
case DSC_DELETE_PEND:
|
|
break;
|
|
default:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
|
|
"PRLI with conflicting sess %p port %8phC\n",
|
|
conflict_sess, conflict_sess->port_name);
|
|
conflict_sess->fw_login_state =
|
|
DSC_LS_PORT_UNAVAIL;
|
|
qlt_send_term_imm_notif(vha, iocb, 1);
|
|
res = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (sess != NULL) {
|
|
bool delete = false;
|
|
int sec;
|
|
|
|
spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
|
|
switch (sess->fw_login_state) {
|
|
case DSC_LS_PLOGI_PEND:
|
|
case DSC_LS_PLOGI_COMP:
|
|
case DSC_LS_PRLI_COMP:
|
|
break;
|
|
default:
|
|
delete = true;
|
|
break;
|
|
}
|
|
|
|
switch (sess->disc_state) {
|
|
case DSC_UPD_FCPORT:
|
|
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
|
|
flags);
|
|
|
|
sec = jiffies_to_msecs(jiffies -
|
|
sess->jiffies_at_registration)/1000;
|
|
if (sess->sec_since_registration < sec && sec &&
|
|
!(sec % 5)) {
|
|
sess->sec_since_registration = sec;
|
|
ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
|
|
"%s %8phC : Slow Rport registration(%d Sec)\n",
|
|
__func__, sess->port_name, sec);
|
|
}
|
|
qlt_send_term_imm_notif(vha, iocb, 1);
|
|
return 0;
|
|
|
|
case DSC_LOGIN_PEND:
|
|
case DSC_GPDB:
|
|
case DSC_LOGIN_COMPLETE:
|
|
case DSC_ADISC:
|
|
delete = false;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (delete) {
|
|
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
|
|
flags);
|
|
/*
|
|
* Impatient initiator sent PRLI before last
|
|
* PLOGI could finish. Will force him to re-try,
|
|
* while last one finishes.
|
|
*/
|
|
ql_log(ql_log_warn, sess->vha, 0xf095,
|
|
"sess %p PRLI received, before plogi ack.\n",
|
|
sess);
|
|
qlt_send_term_imm_notif(vha, iocb, 1);
|
|
res = 0;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* This shouldn't happen under normal circumstances,
|
|
* since we have deleted the old session during PLOGI
|
|
*/
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096,
|
|
"PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
|
|
sess->loop_id, sess, iocb->u.isp24.nport_handle);
|
|
|
|
sess->local = 0;
|
|
sess->loop_id = loop_id;
|
|
sess->d_id = port_id;
|
|
sess->fw_login_state = DSC_LS_PRLI_PEND;
|
|
|
|
if (wd3_lo & BIT_7)
|
|
sess->conf_compl_supported = 1;
|
|
|
|
if ((wd3_lo & BIT_4) == 0)
|
|
sess->port_type = FCT_INITIATOR;
|
|
else
|
|
sess->port_type = FCT_TARGET;
|
|
|
|
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
|
|
}
|
|
res = 1; /* send notify ack */
|
|
|
|
/* Make session global (not used in fabric mode) */
|
|
if (ha->current_topology != ISP_CFG_F) {
|
|
if (sess) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x20fa,
|
|
"%s %d %8phC post nack\n",
|
|
__func__, __LINE__, sess->port_name);
|
|
qla24xx_post_nack_work(vha, sess, iocb,
|
|
SRB_NACK_PRLI);
|
|
res = 0;
|
|
} else {
|
|
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
|
|
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
|
|
qla2xxx_wake_dpc(vha);
|
|
}
|
|
} else {
|
|
if (sess) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x20fb,
|
|
"%s %d %8phC post nack\n",
|
|
__func__, __LINE__, sess->port_name);
|
|
qla24xx_post_nack_work(vha, sess, iocb,
|
|
SRB_NACK_PRLI);
|
|
res = 0;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ELS_TPRLO:
|
|
if (le16_to_cpu(iocb->u.isp24.flags) &
|
|
NOTIFY24XX_FLAGS_GLOBAL_TPRLO) {
|
|
loop_id = 0xFFFF;
|
|
qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS);
|
|
res = 1;
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case ELS_LOGO:
|
|
case ELS_PRLO:
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
sess = qla2x00_find_fcport_by_loopid(vha, loop_id);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
if (sess) {
|
|
sess->login_gen++;
|
|
sess->fw_login_state = DSC_LS_LOGO_PEND;
|
|
sess->logo_ack_needed = 1;
|
|
memcpy(sess->iocb, iocb, IOCB_SIZE);
|
|
}
|
|
|
|
res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x20fc,
|
|
"%s: logo %llx res %d sess %p ",
|
|
__func__, wwn, res, sess);
|
|
if (res == 0) {
|
|
/*
|
|
* cmd went upper layer, look for qlt_xmit_tm_rsp()
|
|
* for LOGO_ACK & sess delete
|
|
*/
|
|
BUG_ON(!sess);
|
|
res = 0;
|
|
} else {
|
|
/* cmd did not go to upper layer. */
|
|
if (sess) {
|
|
qlt_schedule_sess_for_deletion(sess);
|
|
res = 0;
|
|
}
|
|
/* else logo will be ack */
|
|
}
|
|
break;
|
|
case ELS_PDISC:
|
|
case ELS_ADISC:
|
|
{
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
|
|
if (tgt->link_reinit_iocb_pending) {
|
|
qlt_send_notify_ack(ha->base_qpair,
|
|
&tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
|
|
tgt->link_reinit_iocb_pending = 0;
|
|
}
|
|
|
|
sess = qla2x00_find_fcport_by_wwpn(vha,
|
|
iocb->u.isp24.port_name, 1);
|
|
if (sess) {
|
|
ql_dbg(ql_dbg_disc, vha, 0x20fd,
|
|
"sess %p lid %d|%d DS %d LS %d\n",
|
|
sess, sess->loop_id, loop_id,
|
|
sess->disc_state, sess->fw_login_state);
|
|
}
|
|
|
|
res = 1; /* send notify ack */
|
|
break;
|
|
}
|
|
|
|
case ELS_FLOGI: /* should never happen */
|
|
default:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
|
|
"qla_target(%d): Unsupported ELS command %x "
|
|
"received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
|
|
res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
|
|
break;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0xf026,
|
|
"qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
|
|
vha->vp_idx, iocb->u.isp24.status_subcode, res);
|
|
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
|
|
struct imm_ntfy_from_isp *iocb)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
uint32_t add_flags = 0;
|
|
int send_notify_ack = 1;
|
|
uint16_t status;
|
|
|
|
lockdep_assert_held(&ha->hardware_lock);
|
|
|
|
status = le16_to_cpu(iocb->u.isp2x.status);
|
|
switch (status) {
|
|
case IMM_NTFY_LIP_RESET:
|
|
{
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
|
|
"qla_target(%d): LIP reset (loop %#x), subcode %x\n",
|
|
vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
|
|
iocb->u.isp24.status_subcode);
|
|
|
|
if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
|
|
send_notify_ack = 0;
|
|
break;
|
|
}
|
|
|
|
case IMM_NTFY_LIP_LINK_REINIT:
|
|
{
|
|
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,
|
|
le16_to_cpu(iocb->u.isp24.nport_handle),
|
|
iocb->u.isp24.status_subcode);
|
|
if (tgt->link_reinit_iocb_pending) {
|
|
qlt_send_notify_ack(ha->base_qpair,
|
|
&tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
|
|
tgt->link_reinit_iocb_pending = 1;
|
|
/*
|
|
* QLogic requires to wait after LINK REINIT for possible
|
|
* PDISC or ADISC ELS commands
|
|
*/
|
|
send_notify_ack = 0;
|
|
break;
|
|
}
|
|
|
|
case IMM_NTFY_PORT_LOGOUT:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
|
|
"qla_target(%d): Port logout (loop "
|
|
"%#x, subcode %x)\n", vha->vp_idx,
|
|
le16_to_cpu(iocb->u.isp24.nport_handle),
|
|
iocb->u.isp24.status_subcode);
|
|
|
|
if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
|
|
send_notify_ack = 0;
|
|
/* The sessions will be cleared in the callback, if needed */
|
|
break;
|
|
|
|
case IMM_NTFY_GLBL_TPRLO:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
|
|
"qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
|
|
if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
|
|
send_notify_ack = 0;
|
|
/* The sessions will be cleared in the callback, if needed */
|
|
break;
|
|
|
|
case IMM_NTFY_PORT_CONFIG:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
|
|
"qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
|
|
status);
|
|
if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
|
|
send_notify_ack = 0;
|
|
/* The sessions will be cleared in the callback, if needed */
|
|
break;
|
|
|
|
case IMM_NTFY_GLBL_LOGO:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
|
|
"qla_target(%d): Link failure detected\n",
|
|
vha->vp_idx);
|
|
/* I_T nexus loss */
|
|
if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
|
|
send_notify_ack = 0;
|
|
break;
|
|
|
|
case IMM_NTFY_IOCB_OVERFLOW:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
|
|
"qla_target(%d): Cannot provide requested "
|
|
"capability (IOCB overflowed the immediate notify "
|
|
"resource count)\n", vha->vp_idx);
|
|
break;
|
|
|
|
case IMM_NTFY_ABORT_TASK:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
|
|
"qla_target(%d): Abort Task (S %08x I %#x -> "
|
|
"L %#x)\n", vha->vp_idx,
|
|
le16_to_cpu(iocb->u.isp2x.seq_id),
|
|
GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
|
|
le16_to_cpu(iocb->u.isp2x.lun));
|
|
if (qlt_abort_task(vha, iocb) == 0)
|
|
send_notify_ack = 0;
|
|
break;
|
|
|
|
case IMM_NTFY_RESOURCE:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
|
|
"qla_target(%d): Out of resources, host %ld\n",
|
|
vha->vp_idx, vha->host_no);
|
|
break;
|
|
|
|
case IMM_NTFY_MSG_RX:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
|
|
"qla_target(%d): Immediate notify task %x\n",
|
|
vha->vp_idx, iocb->u.isp2x.task_flags);
|
|
break;
|
|
|
|
case IMM_NTFY_ELS:
|
|
if (qlt_24xx_handle_els(vha, iocb) == 0)
|
|
send_notify_ack = 0;
|
|
break;
|
|
default:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
|
|
"qla_target(%d): Received unknown immediate "
|
|
"notify status %x\n", vha->vp_idx, status);
|
|
break;
|
|
}
|
|
|
|
if (send_notify_ack)
|
|
qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0,
|
|
0, 0);
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
* This function sends busy to ISP 2xxx or 24xx.
|
|
*/
|
|
static int __qlt_send_busy(struct qla_qpair *qpair,
|
|
struct atio_from_isp *atio, uint16_t status)
|
|
{
|
|
struct scsi_qla_host *vha = qpair->vha;
|
|
struct ctio7_to_24xx *ctio24;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
request_t *pkt;
|
|
struct fc_port *sess = NULL;
|
|
unsigned long flags;
|
|
u16 temp;
|
|
port_id_t id;
|
|
|
|
id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
if (!sess) {
|
|
qlt_send_term_exchange(qpair, NULL, atio, 1, 0);
|
|
return 0;
|
|
}
|
|
/* Sending marker isn't necessary, since we called from ISR */
|
|
|
|
pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
|
|
if (!pkt) {
|
|
ql_dbg(ql_dbg_io, vha, 0x3063,
|
|
"qla_target(%d): %s failed: unable to allocate "
|
|
"request packet", vha->vp_idx, __func__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
qpair->tgt_counters.num_q_full_sent++;
|
|
pkt->entry_count = 1;
|
|
pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
|
|
|
|
ctio24 = (struct ctio7_to_24xx *)pkt;
|
|
ctio24->entry_type = CTIO_TYPE7;
|
|
ctio24->nport_handle = sess->loop_id;
|
|
ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
|
|
ctio24->vp_index = vha->vp_idx;
|
|
ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
|
|
ctio24->exchange_addr = atio->u.isp24.exchange_addr;
|
|
temp = (atio->u.isp24.attr << 9) |
|
|
CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
|
|
CTIO7_FLAGS_DONT_RET_CTIO;
|
|
ctio24->u.status1.flags = cpu_to_le16(temp);
|
|
/*
|
|
* CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
|
|
* if the explicit conformation is used.
|
|
*/
|
|
ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id);
|
|
ctio24->u.status1.scsi_status = cpu_to_le16(status);
|
|
|
|
ctio24->u.status1.residual = get_datalen_for_atio(atio);
|
|
|
|
if (ctio24->u.status1.residual != 0)
|
|
ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER;
|
|
|
|
/* Memory Barrier */
|
|
wmb();
|
|
if (qpair->reqq_start_iocbs)
|
|
qpair->reqq_start_iocbs(qpair);
|
|
else
|
|
qla2x00_start_iocbs(vha, qpair->req);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This routine is used to allocate a command for either a QFull condition
|
|
* (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go
|
|
* out previously.
|
|
*/
|
|
static void
|
|
qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
|
|
struct atio_from_isp *atio, uint16_t status, int qfull)
|
|
{
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess;
|
|
struct se_session *se_sess;
|
|
struct qla_tgt_cmd *cmd;
|
|
int tag, cpu;
|
|
unsigned long flags;
|
|
|
|
if (unlikely(tgt->tgt_stop)) {
|
|
ql_dbg(ql_dbg_io, vha, 0x300a,
|
|
"New command while device %p is shutting down\n", tgt);
|
|
return;
|
|
}
|
|
|
|
if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) {
|
|
vha->hw->tgt.num_qfull_cmds_dropped++;
|
|
if (vha->hw->tgt.num_qfull_cmds_dropped >
|
|
vha->qla_stats.stat_max_qfull_cmds_dropped)
|
|
vha->qla_stats.stat_max_qfull_cmds_dropped =
|
|
vha->hw->tgt.num_qfull_cmds_dropped;
|
|
|
|
ql_dbg(ql_dbg_io, vha, 0x3068,
|
|
"qla_target(%d): %s: QFull CMD dropped[%d]\n",
|
|
vha->vp_idx, __func__,
|
|
vha->hw->tgt.num_qfull_cmds_dropped);
|
|
|
|
qlt_chk_exch_leak_thresh_hold(vha);
|
|
return;
|
|
}
|
|
|
|
sess = ha->tgt.tgt_ops->find_sess_by_s_id
|
|
(vha, atio->u.isp24.fcp_hdr.s_id);
|
|
if (!sess)
|
|
return;
|
|
|
|
se_sess = sess->se_sess;
|
|
|
|
tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu);
|
|
if (tag < 0) {
|
|
ql_dbg(ql_dbg_io, vha, 0x3009,
|
|
"qla_target(%d): %s: Allocation of cmd failed\n",
|
|
vha->vp_idx, __func__);
|
|
|
|
vha->hw->tgt.num_qfull_cmds_dropped++;
|
|
if (vha->hw->tgt.num_qfull_cmds_dropped >
|
|
vha->qla_stats.stat_max_qfull_cmds_dropped)
|
|
vha->qla_stats.stat_max_qfull_cmds_dropped =
|
|
vha->hw->tgt.num_qfull_cmds_dropped;
|
|
|
|
qlt_chk_exch_leak_thresh_hold(vha);
|
|
return;
|
|
}
|
|
|
|
cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
|
|
memset(cmd, 0, sizeof(struct qla_tgt_cmd));
|
|
|
|
qlt_incr_num_pend_cmds(vha);
|
|
INIT_LIST_HEAD(&cmd->cmd_list);
|
|
memcpy(&cmd->atio, atio, sizeof(*atio));
|
|
|
|
cmd->tgt = vha->vha_tgt.qla_tgt;
|
|
cmd->vha = vha;
|
|
cmd->reset_count = ha->base_qpair->chip_reset;
|
|
cmd->q_full = 1;
|
|
cmd->qpair = ha->base_qpair;
|
|
cmd->se_cmd.map_cpu = cpu;
|
|
|
|
if (qfull) {
|
|
cmd->q_full = 1;
|
|
/* NOTE: borrowing the state field to carry the status */
|
|
cmd->state = status;
|
|
} else
|
|
cmd->term_exchg = 1;
|
|
|
|
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
|
|
list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list);
|
|
|
|
vha->hw->tgt.num_qfull_cmds_alloc++;
|
|
if (vha->hw->tgt.num_qfull_cmds_alloc >
|
|
vha->qla_stats.stat_max_qfull_cmds_alloc)
|
|
vha->qla_stats.stat_max_qfull_cmds_alloc =
|
|
vha->hw->tgt.num_qfull_cmds_alloc;
|
|
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
|
|
}
|
|
|
|
int
|
|
qlt_free_qfull_cmds(struct qla_qpair *qpair)
|
|
{
|
|
struct scsi_qla_host *vha = qpair->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
unsigned long flags;
|
|
struct qla_tgt_cmd *cmd, *tcmd;
|
|
struct list_head free_list, q_full_list;
|
|
int rc = 0;
|
|
|
|
if (list_empty(&ha->tgt.q_full_list))
|
|
return 0;
|
|
|
|
INIT_LIST_HEAD(&free_list);
|
|
INIT_LIST_HEAD(&q_full_list);
|
|
|
|
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
|
|
if (list_empty(&ha->tgt.q_full_list)) {
|
|
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list);
|
|
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
|
|
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) {
|
|
if (cmd->q_full)
|
|
/* cmd->state is a borrowed field to hold status */
|
|
rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state);
|
|
else if (cmd->term_exchg)
|
|
rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio);
|
|
|
|
if (rc == -ENOMEM)
|
|
break;
|
|
|
|
if (cmd->q_full)
|
|
ql_dbg(ql_dbg_io, vha, 0x3006,
|
|
"%s: busy sent for ox_id[%04x]\n", __func__,
|
|
be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
|
|
else if (cmd->term_exchg)
|
|
ql_dbg(ql_dbg_io, vha, 0x3007,
|
|
"%s: Term exchg sent for ox_id[%04x]\n", __func__,
|
|
be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
|
|
else
|
|
ql_dbg(ql_dbg_io, vha, 0x3008,
|
|
"%s: Unexpected cmd in QFull list %p\n", __func__,
|
|
cmd);
|
|
|
|
list_del(&cmd->cmd_list);
|
|
list_add_tail(&cmd->cmd_list, &free_list);
|
|
|
|
/* piggy back on hardware_lock for protection */
|
|
vha->hw->tgt.num_qfull_cmds_alloc--;
|
|
}
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
|
|
cmd = NULL;
|
|
|
|
list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
|
|
list_del(&cmd->cmd_list);
|
|
/* This cmd was never sent to TCM. There is no need
|
|
* to schedule free or call free_cmd
|
|
*/
|
|
qlt_free_cmd(cmd);
|
|
}
|
|
|
|
if (!list_empty(&q_full_list)) {
|
|
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
|
|
list_splice(&q_full_list, &vha->hw->tgt.q_full_list);
|
|
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio,
|
|
uint16_t status)
|
|
{
|
|
int rc = 0;
|
|
struct scsi_qla_host *vha = qpair->vha;
|
|
|
|
rc = __qlt_send_busy(qpair, atio, status);
|
|
if (rc == -ENOMEM)
|
|
qlt_alloc_qfull_cmd(vha, atio, status, 1);
|
|
}
|
|
|
|
static int
|
|
qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
|
|
struct atio_from_isp *atio, uint8_t ha_locked)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
unsigned long flags;
|
|
|
|
if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
|
|
return 0;
|
|
|
|
if (!ha_locked)
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
qlt_send_busy(qpair, atio, qla_sam_status);
|
|
if (!ha_locked)
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
/* called via callback from qla2xxx */
|
|
static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
|
|
struct atio_from_isp *atio, uint8_t ha_locked)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
int rc;
|
|
unsigned long flags = 0;
|
|
|
|
if (unlikely(tgt == NULL)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0x3064,
|
|
"ATIO pkt, but no tgt (ha %p)", ha);
|
|
return;
|
|
}
|
|
/*
|
|
* In tgt_stop mode we also should allow all requests to pass.
|
|
* Otherwise, some commands can stuck.
|
|
*/
|
|
|
|
tgt->atio_irq_cmd_count++;
|
|
|
|
switch (atio->u.raw.entry_type) {
|
|
case ATIO_TYPE7:
|
|
if (unlikely(atio->u.isp24.exchange_addr ==
|
|
ATIO_EXCHANGE_ADDRESS_UNKNOWN)) {
|
|
ql_dbg(ql_dbg_io, vha, 0x3065,
|
|
"qla_target(%d): ATIO_TYPE7 "
|
|
"received with UNKNOWN exchange address, "
|
|
"sending QUEUE_FULL\n", vha->vp_idx);
|
|
if (!ha_locked)
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
|
|
if (!ha_locked)
|
|
spin_unlock_irqrestore(&ha->hardware_lock,
|
|
flags);
|
|
break;
|
|
}
|
|
|
|
if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
|
|
rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair,
|
|
atio, ha_locked);
|
|
if (rc != 0) {
|
|
tgt->atio_irq_cmd_count--;
|
|
return;
|
|
}
|
|
rc = qlt_handle_cmd_for_atio(vha, atio);
|
|
} else {
|
|
rc = qlt_handle_task_mgmt(vha, atio);
|
|
}
|
|
if (unlikely(rc != 0)) {
|
|
if (!ha_locked)
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
switch (rc) {
|
|
case -ENODEV:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
|
|
"qla_target: Unable to send command to target\n");
|
|
break;
|
|
case -EBADF:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
|
|
"qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
|
|
qlt_send_term_exchange(ha->base_qpair, NULL,
|
|
atio, 1, 0);
|
|
break;
|
|
case -EBUSY:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe060,
|
|
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
|
|
vha->vp_idx);
|
|
qlt_send_busy(ha->base_qpair, atio,
|
|
tc_sam_status);
|
|
break;
|
|
default:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe060,
|
|
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
|
|
vha->vp_idx);
|
|
qlt_send_busy(ha->base_qpair, atio,
|
|
qla_sam_status);
|
|
break;
|
|
}
|
|
if (!ha_locked)
|
|
spin_unlock_irqrestore(&ha->hardware_lock,
|
|
flags);
|
|
}
|
|
break;
|
|
|
|
case IMMED_NOTIFY_TYPE:
|
|
{
|
|
if (unlikely(atio->u.isp2x.entry_status != 0)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05b,
|
|
"qla_target(%d): Received ATIO packet %x "
|
|
"with error status %x\n", vha->vp_idx,
|
|
atio->u.raw.entry_type,
|
|
atio->u.isp2x.entry_status);
|
|
break;
|
|
}
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
|
|
|
|
if (!ha_locked)
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
|
|
if (!ha_locked)
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05c,
|
|
"qla_target(%d): Received unknown ATIO atio "
|
|
"type %x\n", vha->vp_idx, atio->u.raw.entry_type);
|
|
break;
|
|
}
|
|
|
|
tgt->atio_irq_cmd_count--;
|
|
}
|
|
|
|
/*
|
|
* qpair lock is assume to be held
|
|
* rc = 0 : send terminate & abts respond
|
|
* rc != 0: do not send term & abts respond
|
|
*/
|
|
static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha,
|
|
struct qla_qpair *qpair, struct abts_resp_from_24xx_fw *entry)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
int rc = 0;
|
|
|
|
/*
|
|
* Detect unresolved exchange. If the same ABTS is unable
|
|
* to terminate an existing command and the same ABTS loops
|
|
* between FW & Driver, then force FW dump. Under 1 jiff,
|
|
* we should see multiple loops.
|
|
*/
|
|
if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort &&
|
|
qpair->retry_term_jiff == jiffies) {
|
|
/* found existing exchange */
|
|
qpair->retry_term_cnt++;
|
|
if (qpair->retry_term_cnt >= 5) {
|
|
rc = EIO;
|
|
qpair->retry_term_cnt = 0;
|
|
ql_log(ql_log_warn, vha, 0xffff,
|
|
"Unable to send ABTS Respond. Dumping firmware.\n");
|
|
ql_dump_buffer(ql_dbg_tgt_mgt + ql_dbg_buffer,
|
|
vha, 0xffff, (uint8_t *)entry, sizeof(*entry));
|
|
|
|
if (qpair == ha->base_qpair)
|
|
ha->isp_ops->fw_dump(vha, 1);
|
|
else
|
|
ha->isp_ops->fw_dump(vha, 0);
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
|
|
qla2xxx_wake_dpc(vha);
|
|
}
|
|
} else if (qpair->retry_term_jiff != jiffies) {
|
|
qpair->retry_term_exchg_addr = entry->exchange_addr_to_abort;
|
|
qpair->retry_term_cnt = 0;
|
|
qpair->retry_term_jiff = jiffies;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
static void qlt_handle_abts_completion(struct scsi_qla_host *vha,
|
|
struct rsp_que *rsp, response_t *pkt)
|
|
{
|
|
struct abts_resp_from_24xx_fw *entry =
|
|
(struct abts_resp_from_24xx_fw *)pkt;
|
|
u32 h = pkt->handle & ~QLA_TGT_HANDLE_MASK;
|
|
struct qla_tgt_mgmt_cmd *mcmd;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
mcmd = qlt_ctio_to_cmd(vha, rsp, pkt->handle, pkt);
|
|
if (mcmd == NULL && h != QLA_TGT_SKIP_HANDLE) {
|
|
ql_dbg(ql_dbg_async, vha, 0xe064,
|
|
"qla_target(%d): ABTS Comp without mcmd\n",
|
|
vha->vp_idx);
|
|
return;
|
|
}
|
|
|
|
if (mcmd)
|
|
vha = mcmd->vha;
|
|
vha->vha_tgt.qla_tgt->abts_resp_expected--;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe038,
|
|
"ABTS_RESP_24XX: compl_status %x\n",
|
|
entry->compl_status);
|
|
|
|
if (le16_to_cpu(entry->compl_status) != ABTS_RESP_COMPL_SUCCESS) {
|
|
if ((entry->error_subcode1 == 0x1E) &&
|
|
(entry->error_subcode2 == 0)) {
|
|
if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) {
|
|
ha->tgt.tgt_ops->free_mcmd(mcmd);
|
|
return;
|
|
}
|
|
qlt_24xx_retry_term_exchange(vha, rsp->qpair,
|
|
pkt, mcmd);
|
|
} else {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe063,
|
|
"qla_target(%d): ABTS_RESP_24XX failed %x (subcode %x:%x)",
|
|
vha->vp_idx, entry->compl_status,
|
|
entry->error_subcode1,
|
|
entry->error_subcode2);
|
|
ha->tgt.tgt_ops->free_mcmd(mcmd);
|
|
}
|
|
} else if (mcmd) {
|
|
ha->tgt.tgt_ops->free_mcmd(mcmd);
|
|
}
|
|
}
|
|
|
|
/* ha->hardware_lock supposed to be held on entry */
|
|
/* called via callback from qla2xxx */
|
|
static void qlt_response_pkt(struct scsi_qla_host *vha,
|
|
struct rsp_que *rsp, response_t *pkt)
|
|
{
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
|
|
if (unlikely(tgt == NULL)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05d,
|
|
"qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
|
|
vha->vp_idx, pkt->entry_type, vha->hw);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* In tgt_stop mode we also should allow all requests to pass.
|
|
* Otherwise, some commands can stuck.
|
|
*/
|
|
|
|
switch (pkt->entry_type) {
|
|
case CTIO_CRC2:
|
|
case CTIO_TYPE7:
|
|
{
|
|
struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
|
|
|
|
qlt_do_ctio_completion(vha, rsp, entry->handle,
|
|
le16_to_cpu(entry->status)|(pkt->entry_status << 16),
|
|
entry);
|
|
break;
|
|
}
|
|
|
|
case ACCEPT_TGT_IO_TYPE:
|
|
{
|
|
struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
|
|
int rc;
|
|
|
|
if (atio->u.isp2x.status !=
|
|
cpu_to_le16(ATIO_CDB_VALID)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05e,
|
|
"qla_target(%d): ATIO with error "
|
|
"status %x received\n", vha->vp_idx,
|
|
le16_to_cpu(atio->u.isp2x.status));
|
|
break;
|
|
}
|
|
|
|
rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1);
|
|
if (rc != 0)
|
|
return;
|
|
|
|
rc = qlt_handle_cmd_for_atio(vha, atio);
|
|
if (unlikely(rc != 0)) {
|
|
switch (rc) {
|
|
case -ENODEV:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
|
|
"qla_target: Unable to send command to target\n");
|
|
break;
|
|
case -EBADF:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
|
|
"qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
|
|
qlt_send_term_exchange(rsp->qpair, NULL,
|
|
atio, 1, 0);
|
|
break;
|
|
case -EBUSY:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe060,
|
|
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
|
|
vha->vp_idx);
|
|
qlt_send_busy(rsp->qpair, atio,
|
|
tc_sam_status);
|
|
break;
|
|
default:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe060,
|
|
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
|
|
vha->vp_idx);
|
|
qlt_send_busy(rsp->qpair, atio,
|
|
qla_sam_status);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case CONTINUE_TGT_IO_TYPE:
|
|
{
|
|
struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
|
|
|
|
qlt_do_ctio_completion(vha, rsp, entry->handle,
|
|
le16_to_cpu(entry->status)|(pkt->entry_status << 16),
|
|
entry);
|
|
break;
|
|
}
|
|
|
|
case CTIO_A64_TYPE:
|
|
{
|
|
struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
|
|
|
|
qlt_do_ctio_completion(vha, rsp, entry->handle,
|
|
le16_to_cpu(entry->status)|(pkt->entry_status << 16),
|
|
entry);
|
|
break;
|
|
}
|
|
|
|
case IMMED_NOTIFY_TYPE:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
|
|
qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
|
|
break;
|
|
|
|
case NOTIFY_ACK_TYPE:
|
|
if (tgt->notify_ack_expected > 0) {
|
|
struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe036,
|
|
"NOTIFY_ACK seq %08x status %x\n",
|
|
le16_to_cpu(entry->u.isp2x.seq_id),
|
|
le16_to_cpu(entry->u.isp2x.status));
|
|
tgt->notify_ack_expected--;
|
|
if (entry->u.isp2x.status !=
|
|
cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe061,
|
|
"qla_target(%d): NOTIFY_ACK "
|
|
"failed %x\n", vha->vp_idx,
|
|
le16_to_cpu(entry->u.isp2x.status));
|
|
}
|
|
} else {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe062,
|
|
"qla_target(%d): Unexpected NOTIFY_ACK received\n",
|
|
vha->vp_idx);
|
|
}
|
|
break;
|
|
|
|
case ABTS_RECV_24XX:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe037,
|
|
"ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
|
|
qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
|
|
break;
|
|
|
|
case ABTS_RESP_24XX:
|
|
if (tgt->abts_resp_expected > 0) {
|
|
qlt_handle_abts_completion(vha, rsp, pkt);
|
|
} else {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe064,
|
|
"qla_target(%d): Unexpected ABTS_RESP_24XX "
|
|
"received\n", vha->vp_idx);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe065,
|
|
"qla_target(%d): Received unknown response pkt "
|
|
"type %x\n", vha->vp_idx, pkt->entry_type);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
|
|
*/
|
|
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 = vha->vha_tgt.qla_tgt;
|
|
int login_code;
|
|
|
|
if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
|
|
return;
|
|
|
|
if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
|
|
IS_QLA2100(ha))
|
|
return;
|
|
/*
|
|
* In tgt_stop mode we also should allow all requests to pass.
|
|
* Otherwise, some commands can stuck.
|
|
*/
|
|
|
|
|
|
switch (code) {
|
|
case MBA_RESET: /* Reset */
|
|
case MBA_SYSTEM_ERR: /* System Error */
|
|
case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
|
|
case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
|
|
"qla_target(%d): System error async event %#x "
|
|
"occurred", vha->vp_idx, code);
|
|
break;
|
|
case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */
|
|
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_LOOP_UP:
|
|
{
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
|
|
"qla_target(%d): Async LOOP_UP occurred "
|
|
"(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx,
|
|
le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
|
|
le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
|
|
if (tgt->link_reinit_iocb_pending) {
|
|
qlt_send_notify_ack(ha->base_qpair,
|
|
(void *)&tgt->link_reinit_iocb,
|
|
0, 0, 0, 0, 0, 0);
|
|
tgt->link_reinit_iocb_pending = 0;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case MBA_LIP_OCCURRED:
|
|
case MBA_LOOP_DOWN:
|
|
case MBA_LIP_RESET:
|
|
case MBA_RSCN_UPDATE:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
|
|
"qla_target(%d): Async event %#x occurred "
|
|
"(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code,
|
|
le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
|
|
le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
|
|
break;
|
|
|
|
case MBA_REJECTED_FCP_CMD:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017,
|
|
"qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
|
|
vha->vp_idx,
|
|
le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
|
|
le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
|
|
|
|
if (le16_to_cpu(mailbox[3]) == 1) {
|
|
/* exchange starvation. */
|
|
vha->hw->exch_starvation++;
|
|
if (vha->hw->exch_starvation > 5) {
|
|
ql_log(ql_log_warn, vha, 0xd03a,
|
|
"Exchange starvation-. Resetting RISC\n");
|
|
|
|
vha->hw->exch_starvation = 0;
|
|
if (IS_P3P_TYPE(vha->hw))
|
|
set_bit(FCOE_CTX_RESET_NEEDED,
|
|
&vha->dpc_flags);
|
|
else
|
|
set_bit(ISP_ABORT_NEEDED,
|
|
&vha->dpc_flags);
|
|
qla2xxx_wake_dpc(vha);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MBA_PORT_UPDATE:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
|
|
"qla_target(%d): Port update async event %#x "
|
|
"occurred: updating the ports database (m[0]=%x, m[1]=%x, "
|
|
"m[2]=%x, m[3]=%x)", vha->vp_idx, code,
|
|
le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
|
|
le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
|
|
|
|
login_code = le16_to_cpu(mailbox[2]);
|
|
if (login_code == 0x4) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
|
|
"Async MB 2: Got PLOGI Complete\n");
|
|
vha->hw->exch_starvation = 0;
|
|
} else if (login_code == 0x7)
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
|
|
"Async MB 2: Port Logged Out\n");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
|
|
uint16_t loop_id)
|
|
{
|
|
fc_port_t *fcport, *tfcp, *del;
|
|
int rc;
|
|
unsigned long flags;
|
|
u8 newfcport = 0;
|
|
|
|
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
|
|
if (!fcport) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
|
|
"qla_target(%d): Allocation of tmp FC port failed",
|
|
vha->vp_idx);
|
|
return NULL;
|
|
}
|
|
|
|
fcport->loop_id = loop_id;
|
|
|
|
rc = qla24xx_gpdb_wait(vha, fcport, 0);
|
|
if (rc != QLA_SUCCESS) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
|
|
"qla_target(%d): Failed to retrieve fcport "
|
|
"information -- get_port_database() returned %x "
|
|
"(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
|
|
kfree(fcport);
|
|
return NULL;
|
|
}
|
|
|
|
del = NULL;
|
|
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
|
|
tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1);
|
|
|
|
if (tfcp) {
|
|
tfcp->d_id = fcport->d_id;
|
|
tfcp->port_type = fcport->port_type;
|
|
tfcp->supported_classes = fcport->supported_classes;
|
|
tfcp->flags |= fcport->flags;
|
|
tfcp->scan_state = QLA_FCPORT_FOUND;
|
|
|
|
del = fcport;
|
|
fcport = tfcp;
|
|
} else {
|
|
if (vha->hw->current_topology == ISP_CFG_F)
|
|
fcport->flags |= FCF_FABRIC_DEVICE;
|
|
|
|
list_add_tail(&fcport->list, &vha->vp_fcports);
|
|
if (!IS_SW_RESV_ADDR(fcport->d_id))
|
|
vha->fcport_count++;
|
|
fcport->login_gen++;
|
|
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
|
|
fcport->login_succ = 1;
|
|
newfcport = 1;
|
|
}
|
|
|
|
fcport->deleted = 0;
|
|
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
|
|
|
|
switch (vha->host->active_mode) {
|
|
case MODE_INITIATOR:
|
|
case MODE_DUAL:
|
|
if (newfcport) {
|
|
if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) {
|
|
qla24xx_sched_upd_fcport(fcport);
|
|
} else {
|
|
ql_dbg(ql_dbg_disc, vha, 0x20ff,
|
|
"%s %d %8phC post gpsc fcp_cnt %d\n",
|
|
__func__, __LINE__, fcport->port_name, vha->fcport_count);
|
|
qla24xx_post_gpsc_work(vha, fcport);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MODE_TARGET:
|
|
default:
|
|
break;
|
|
}
|
|
if (del)
|
|
qla2x00_free_fcport(del);
|
|
|
|
return fcport;
|
|
}
|
|
|
|
/* Must be called under tgt_mutex */
|
|
static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
|
|
be_id_t s_id)
|
|
{
|
|
struct fc_port *sess = NULL;
|
|
fc_port_t *fcport = NULL;
|
|
int rc, global_resets;
|
|
uint16_t loop_id = 0;
|
|
|
|
if (s_id.domain == 0xFF && s_id.area == 0xFC) {
|
|
/*
|
|
* This is Domain Controller, so it should be
|
|
* OK to drop SCSI commands from it.
|
|
*/
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
|
|
"Unable to find initiator with S_ID %x:%x:%x",
|
|
s_id.domain, s_id.area, s_id.al_pa);
|
|
return NULL;
|
|
}
|
|
|
|
mutex_lock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
retry:
|
|
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) {
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
ql_log(ql_log_info, vha, 0xf071,
|
|
"qla_target(%d): Unable to find "
|
|
"initiator with S_ID %x:%x:%x",
|
|
vha->vp_idx, s_id.domain, s_id.area, s_id.al_pa);
|
|
|
|
if (rc == -ENOENT) {
|
|
qlt_port_logo_t logo;
|
|
|
|
logo.id = be_to_port_id(s_id);
|
|
logo.cmd_count = 1;
|
|
qlt_send_first_logo(vha, &logo);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
fcport = qlt_get_port_database(vha, loop_id);
|
|
if (!fcport) {
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
return NULL;
|
|
}
|
|
|
|
if (global_resets !=
|
|
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(&vha->vha_tgt.
|
|
qla_tgt->tgt_global_resets_count));
|
|
goto retry;
|
|
}
|
|
|
|
sess = qlt_create_sess(vha, fcport, true);
|
|
|
|
mutex_unlock(&vha->vha_tgt.tgt_mutex);
|
|
|
|
return sess;
|
|
}
|
|
|
|
static void qlt_abort_work(struct qla_tgt *tgt,
|
|
struct qla_tgt_sess_work_param *prm)
|
|
{
|
|
struct scsi_qla_host *vha = tgt->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess = NULL;
|
|
unsigned long flags = 0, flags2 = 0;
|
|
be_id_t s_id;
|
|
int rc;
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
|
|
|
|
if (tgt->tgt_stop)
|
|
goto out_term2;
|
|
|
|
s_id = le_id_to_be(prm->abts.fcp_hdr_le.s_id);
|
|
|
|
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
|
|
if (!sess) {
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
|
|
|
|
sess = qlt_make_local_sess(vha, s_id);
|
|
/* sess has got an extra creation ref */
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
|
|
if (!sess)
|
|
goto out_term2;
|
|
} else {
|
|
if (sess->deleted) {
|
|
sess = NULL;
|
|
goto out_term2;
|
|
}
|
|
|
|
if (!kref_get_unless_zero(&sess->sess_kref)) {
|
|
ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c,
|
|
"%s: kref_get fail %8phC \n",
|
|
__func__, sess->port_name);
|
|
sess = NULL;
|
|
goto out_term2;
|
|
}
|
|
}
|
|
|
|
rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
|
|
|
|
ha->tgt.tgt_ops->put_sess(sess);
|
|
|
|
if (rc != 0)
|
|
goto out_term;
|
|
return;
|
|
|
|
out_term2:
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
|
|
|
|
out_term:
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts,
|
|
FCP_TMF_REJECTED, false);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
}
|
|
|
|
static void qlt_tmr_work(struct qla_tgt *tgt,
|
|
struct qla_tgt_sess_work_param *prm)
|
|
{
|
|
struct atio_from_isp *a = &prm->tm_iocb2;
|
|
struct scsi_qla_host *vha = tgt->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_port *sess;
|
|
unsigned long flags;
|
|
be_id_t s_id;
|
|
int rc;
|
|
u64 unpacked_lun;
|
|
int fn;
|
|
void *iocb;
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
|
|
if (tgt->tgt_stop)
|
|
goto out_term2;
|
|
|
|
s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
|
|
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
|
|
if (!sess) {
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
sess = qlt_make_local_sess(vha, s_id);
|
|
/* sess has got an extra creation ref */
|
|
|
|
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
|
|
if (!sess)
|
|
goto out_term2;
|
|
} else {
|
|
if (sess->deleted) {
|
|
goto out_term2;
|
|
}
|
|
|
|
if (!kref_get_unless_zero(&sess->sess_kref)) {
|
|
ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020,
|
|
"%s: kref_get fail %8phC\n",
|
|
__func__, sess->port_name);
|
|
goto out_term2;
|
|
}
|
|
}
|
|
|
|
iocb = a;
|
|
fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
|
|
unpacked_lun =
|
|
scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
|
|
|
|
rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
|
|
ha->tgt.tgt_ops->put_sess(sess);
|
|
|
|
if (rc != 0)
|
|
goto out_term;
|
|
return;
|
|
|
|
out_term2:
|
|
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
|
|
out_term:
|
|
qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0);
|
|
}
|
|
|
|
static void qlt_sess_work_fn(struct work_struct *work)
|
|
{
|
|
struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
|
|
struct scsi_qla_host *vha = tgt->vha;
|
|
unsigned long flags;
|
|
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
|
|
|
|
spin_lock_irqsave(&tgt->sess_work_lock, flags);
|
|
while (!list_empty(&tgt->sess_works_list)) {
|
|
struct qla_tgt_sess_work_param *prm = list_entry(
|
|
tgt->sess_works_list.next, typeof(*prm),
|
|
sess_works_list_entry);
|
|
|
|
/*
|
|
* This work can be scheduled on several CPUs at time, so we
|
|
* must delete the entry to eliminate double processing
|
|
*/
|
|
list_del(&prm->sess_works_list_entry);
|
|
|
|
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
|
|
|
|
switch (prm->type) {
|
|
case QLA_TGT_SESS_WORK_ABORT:
|
|
qlt_abort_work(tgt, prm);
|
|
break;
|
|
case QLA_TGT_SESS_WORK_TM:
|
|
qlt_tmr_work(tgt, prm);
|
|
break;
|
|
default:
|
|
BUG_ON(1);
|
|
break;
|
|
}
|
|
|
|
spin_lock_irqsave(&tgt->sess_work_lock, flags);
|
|
|
|
kfree(prm);
|
|
}
|
|
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
|
|
}
|
|
|
|
/* Must be called under tgt_host_action_mutex */
|
|
int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
|
|
{
|
|
struct qla_tgt *tgt;
|
|
int rc, i;
|
|
struct qla_qpair_hint *h;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return 0;
|
|
|
|
if (!IS_TGT_MODE_CAPABLE(ha)) {
|
|
ql_log(ql_log_warn, base_vha, 0xe070,
|
|
"This adapter does not support target mode.\n");
|
|
return 0;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
|
|
"Registering target for host %ld(%p).\n", base_vha->host_no, ha);
|
|
|
|
BUG_ON(base_vha->vha_tgt.qla_tgt != NULL);
|
|
|
|
tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
|
|
if (!tgt) {
|
|
ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
|
|
"Unable to allocate struct qla_tgt\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
tgt->qphints = kcalloc(ha->max_qpairs + 1,
|
|
sizeof(struct qla_qpair_hint),
|
|
GFP_KERNEL);
|
|
if (!tgt->qphints) {
|
|
kfree(tgt);
|
|
ql_log(ql_log_warn, base_vha, 0x0197,
|
|
"Unable to allocate qpair hints.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
|
|
base_vha->host->hostt->supported_mode |= MODE_TARGET;
|
|
|
|
rc = btree_init64(&tgt->lun_qpair_map);
|
|
if (rc) {
|
|
kfree(tgt->qphints);
|
|
kfree(tgt);
|
|
ql_log(ql_log_info, base_vha, 0x0198,
|
|
"Unable to initialize lun_qpair_map btree\n");
|
|
return -EIO;
|
|
}
|
|
h = &tgt->qphints[0];
|
|
h->qpair = ha->base_qpair;
|
|
INIT_LIST_HEAD(&h->hint_elem);
|
|
h->cpuid = ha->base_qpair->cpuid;
|
|
list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
|
|
|
|
for (i = 0; i < ha->max_qpairs; i++) {
|
|
unsigned long flags;
|
|
|
|
struct qla_qpair *qpair = ha->queue_pair_map[i];
|
|
|
|
h = &tgt->qphints[i + 1];
|
|
INIT_LIST_HEAD(&h->hint_elem);
|
|
if (qpair) {
|
|
h->qpair = qpair;
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
list_add_tail(&h->hint_elem, &qpair->hints_list);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
|
|
h->cpuid = qpair->cpuid;
|
|
}
|
|
}
|
|
|
|
tgt->ha = ha;
|
|
tgt->vha = base_vha;
|
|
init_waitqueue_head(&tgt->waitQ);
|
|
INIT_LIST_HEAD(&tgt->del_sess_list);
|
|
spin_lock_init(&tgt->sess_work_lock);
|
|
INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
|
|
INIT_LIST_HEAD(&tgt->sess_works_list);
|
|
atomic_set(&tgt->tgt_global_resets_count, 0);
|
|
|
|
base_vha->vha_tgt.qla_tgt = tgt;
|
|
|
|
ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
|
|
"qla_target(%d): using 64 Bit PCI addressing",
|
|
base_vha->vp_idx);
|
|
/* 3 is reserved */
|
|
tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
|
|
|
|
mutex_lock(&qla_tgt_mutex);
|
|
list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
|
|
mutex_unlock(&qla_tgt_mutex);
|
|
|
|
if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target)
|
|
ha->tgt.tgt_ops->add_target(base_vha);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Must be called under tgt_host_action_mutex */
|
|
int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
|
|
{
|
|
if (!vha->vha_tgt.qla_tgt)
|
|
return 0;
|
|
|
|
if (vha->fc_vport) {
|
|
qlt_release(vha->vha_tgt.qla_tgt);
|
|
return 0;
|
|
}
|
|
|
|
/* free left over qfull cmds */
|
|
qlt_init_term_exchange(vha);
|
|
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
|
|
vha->host_no, ha);
|
|
qlt_release(vha->vha_tgt.qla_tgt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void qlt_remove_target_resources(struct qla_hw_data *ha)
|
|
{
|
|
struct scsi_qla_host *node;
|
|
u32 key = 0;
|
|
|
|
btree_for_each_safe32(&ha->tgt.host_map, key, node)
|
|
btree_remove32(&ha->tgt.host_map, key);
|
|
|
|
btree_destroy32(&ha->tgt.host_map);
|
|
}
|
|
|
|
static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
|
|
unsigned char *b)
|
|
{
|
|
pr_debug("qla2xxx HW vha->node_name: %8phC\n", vha->node_name);
|
|
pr_debug("qla2xxx HW vha->port_name: %8phC\n", vha->port_name);
|
|
put_unaligned_be64(wwpn, b);
|
|
pr_debug("qla2xxx passed configfs WWPN: %8phC\n", b);
|
|
}
|
|
|
|
/**
|
|
* qla_tgt_lport_register - register lport with external module
|
|
*
|
|
* @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
|
|
* @phys_wwpn: physical port WWPN
|
|
* @npiv_wwpn: NPIV WWPN
|
|
* @npiv_wwnn: NPIV WWNN
|
|
* @callback: lport initialization callback for tcm_qla2xxx code
|
|
*/
|
|
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;
|
|
struct qla_hw_data *ha;
|
|
struct Scsi_Host *host;
|
|
unsigned long flags;
|
|
int rc;
|
|
u8 b[WWN_SIZE];
|
|
|
|
mutex_lock(&qla_tgt_mutex);
|
|
list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
|
|
vha = tgt->vha;
|
|
ha = vha->hw;
|
|
|
|
host = vha->host;
|
|
if (!host)
|
|
continue;
|
|
|
|
if (!(host->hostt->supported_mode & MODE_TARGET))
|
|
continue;
|
|
|
|
if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
|
|
continue;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
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)) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe068,
|
|
"Unable to scsi_host_get() for"
|
|
" qla2xxx scsi_host\n");
|
|
continue;
|
|
}
|
|
qlt_lport_dump(vha, phys_wwpn, b);
|
|
|
|
if (memcmp(vha->port_name, b, WWN_SIZE)) {
|
|
scsi_host_put(host);
|
|
continue;
|
|
}
|
|
rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn);
|
|
if (rc != 0)
|
|
scsi_host_put(host);
|
|
|
|
mutex_unlock(&qla_tgt_mutex);
|
|
return rc;
|
|
}
|
|
mutex_unlock(&qla_tgt_mutex);
|
|
|
|
return -ENODEV;
|
|
}
|
|
EXPORT_SYMBOL(qlt_lport_register);
|
|
|
|
/**
|
|
* qla_tgt_lport_deregister - Degister lport
|
|
*
|
|
* @vha: Registered scsi_qla_host pointer
|
|
*/
|
|
void qlt_lport_deregister(struct scsi_qla_host *vha)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct Scsi_Host *sh = vha->host;
|
|
/*
|
|
* Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
|
|
*/
|
|
vha->vha_tgt.target_lport_ptr = NULL;
|
|
ha->tgt.tgt_ops = NULL;
|
|
/*
|
|
* Release the Scsi_Host reference for the underlying qla2xxx host
|
|
*/
|
|
scsi_host_put(sh);
|
|
}
|
|
EXPORT_SYMBOL(qlt_lport_deregister);
|
|
|
|
/* Must be called under HW lock */
|
|
void qlt_set_mode(struct scsi_qla_host *vha)
|
|
{
|
|
switch (vha->qlini_mode) {
|
|
case QLA2XXX_INI_MODE_DISABLED:
|
|
case QLA2XXX_INI_MODE_EXCLUSIVE:
|
|
vha->host->active_mode = MODE_TARGET;
|
|
break;
|
|
case QLA2XXX_INI_MODE_ENABLED:
|
|
vha->host->active_mode = MODE_INITIATOR;
|
|
break;
|
|
case QLA2XXX_INI_MODE_DUAL:
|
|
vha->host->active_mode = MODE_DUAL;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Must be called under HW lock */
|
|
static void qlt_clear_mode(struct scsi_qla_host *vha)
|
|
{
|
|
switch (vha->qlini_mode) {
|
|
case QLA2XXX_INI_MODE_DISABLED:
|
|
vha->host->active_mode = MODE_UNKNOWN;
|
|
break;
|
|
case QLA2XXX_INI_MODE_EXCLUSIVE:
|
|
vha->host->active_mode = MODE_INITIATOR;
|
|
break;
|
|
case QLA2XXX_INI_MODE_ENABLED:
|
|
case QLA2XXX_INI_MODE_DUAL:
|
|
vha->host->active_mode = MODE_INITIATOR;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* qla_tgt_enable_vha - NO LOCK HELD
|
|
*
|
|
* host_reset, bring up w/ Target Mode Enabled
|
|
*/
|
|
void
|
|
qlt_enable_vha(struct scsi_qla_host *vha)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
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,
|
|
"Unable to locate qla_tgt pointer from"
|
|
" struct qla_hw_data\n");
|
|
dump_stack();
|
|
return;
|
|
}
|
|
if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
|
|
return;
|
|
|
|
if (ha->tgt.num_act_qpairs > ha->max_qpairs)
|
|
ha->tgt.num_act_qpairs = ha->max_qpairs;
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
tgt->tgt_stopped = 0;
|
|
qlt_set_mode(vha);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
mutex_lock(&ha->optrom_mutex);
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
|
|
"%s.\n", __func__);
|
|
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);
|
|
WARN_ON_ONCE(qla2x00_wait_for_hba_online(base_vha) !=
|
|
QLA_SUCCESS);
|
|
}
|
|
mutex_unlock(&ha->optrom_mutex);
|
|
}
|
|
EXPORT_SYMBOL(qlt_enable_vha);
|
|
|
|
/*
|
|
* qla_tgt_disable_vha - NO LOCK HELD
|
|
*
|
|
* Disable Target Mode and reset the adapter
|
|
*/
|
|
static void qlt_disable_vha(struct scsi_qla_host *vha)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
|
|
unsigned long flags;
|
|
|
|
if (!tgt) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe06a,
|
|
"Unable to locate qla_tgt pointer from"
|
|
" struct qla_hw_data\n");
|
|
dump_stack();
|
|
return;
|
|
}
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
qlt_clear_mode(vha);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
|
|
qla2xxx_wake_dpc(vha);
|
|
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe081,
|
|
"qla2x00_wait_for_hba_online() failed\n");
|
|
}
|
|
|
|
/*
|
|
* Called from qla_init.c:qla24xx_vport_create() contex to setup
|
|
* the target mode specific struct scsi_qla_host and struct qla_hw_data
|
|
* members.
|
|
*/
|
|
void
|
|
qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
|
|
{
|
|
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);
|
|
|
|
/*
|
|
* NOTE: Currently the value is kept the same for <24xx and
|
|
* >=24xx ISPs. If it is necessary to change it,
|
|
* the check should be added for specific ISPs,
|
|
* assigning the value appropriately.
|
|
*/
|
|
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
|
|
|
|
qlt_add_target(ha, vha);
|
|
}
|
|
|
|
u8
|
|
qlt_rff_id(struct scsi_qla_host *vha)
|
|
{
|
|
u8 fc4_feature = 0;
|
|
/*
|
|
* FC-4 Feature bit 0 indicates target functionality to the name server.
|
|
*/
|
|
if (qla_tgt_mode_enabled(vha)) {
|
|
fc4_feature = BIT_0;
|
|
} else if (qla_ini_mode_enabled(vha)) {
|
|
fc4_feature = BIT_1;
|
|
} else if (qla_dual_mode_enabled(vha))
|
|
fc4_feature = BIT_0 | BIT_1;
|
|
|
|
return fc4_feature;
|
|
}
|
|
|
|
/*
|
|
* qlt_init_atio_q_entries() - Initializes ATIO queue entries.
|
|
* @ha: HA context
|
|
*
|
|
* Beginning of ATIO ring has initialization control block already built
|
|
* by nvram config routine.
|
|
*
|
|
* Returns 0 on success.
|
|
*/
|
|
void
|
|
qlt_init_atio_q_entries(struct scsi_qla_host *vha)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
uint16_t cnt;
|
|
struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
|
|
|
|
if (qla_ini_mode_enabled(vha))
|
|
return;
|
|
|
|
for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
|
|
pkt->u.raw.signature = ATIO_PROCESSED;
|
|
pkt++;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* qlt_24xx_process_atio_queue() - Process ATIO queue entries.
|
|
* @ha: SCSI driver HA context
|
|
*/
|
|
void
|
|
qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct atio_from_isp *pkt;
|
|
int cnt, i;
|
|
|
|
if (!ha->flags.fw_started)
|
|
return;
|
|
|
|
while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
|
|
fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
|
|
pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
|
|
cnt = pkt->u.raw.entry_count;
|
|
|
|
if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
|
|
/*
|
|
* This packet is corrupted. The header + payload
|
|
* can not be trusted. There is no point in passing
|
|
* it further up.
|
|
*/
|
|
ql_log(ql_log_warn, vha, 0xd03c,
|
|
"corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
|
|
&pkt->u.isp24.fcp_hdr.s_id,
|
|
be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
|
|
le32_to_cpu(pkt->u.isp24.exchange_addr), pkt);
|
|
|
|
adjust_corrupted_atio(pkt);
|
|
qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
|
|
ha_locked, 0);
|
|
} else {
|
|
qlt_24xx_atio_pkt_all_vps(vha,
|
|
(struct atio_from_isp *)pkt, ha_locked);
|
|
}
|
|
|
|
for (i = 0; i < cnt; i++) {
|
|
ha->tgt.atio_ring_index++;
|
|
if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
|
|
ha->tgt.atio_ring_index = 0;
|
|
ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
|
|
} else
|
|
ha->tgt.atio_ring_ptr++;
|
|
|
|
pkt->u.raw.signature = ATIO_PROCESSED;
|
|
pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
|
|
}
|
|
wmb();
|
|
}
|
|
|
|
/* Adjust ring index */
|
|
WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
|
|
}
|
|
|
|
void
|
|
qlt_24xx_config_rings(struct scsi_qla_host *vha)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_msix_entry *msix = &ha->msix_entries[2];
|
|
struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
WRT_REG_DWORD(ISP_ATIO_Q_IN(vha), 0);
|
|
WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0);
|
|
RD_REG_DWORD(ISP_ATIO_Q_OUT(vha));
|
|
|
|
if (ha->flags.msix_enabled) {
|
|
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
|
|
if (IS_QLA2071(ha)) {
|
|
/* 4 ports Baker: Enable Interrupt Handshake */
|
|
icb->msix_atio = 0;
|
|
icb->firmware_options_2 |= BIT_26;
|
|
} else {
|
|
icb->msix_atio = cpu_to_le16(msix->entry);
|
|
icb->firmware_options_2 &= ~BIT_26;
|
|
}
|
|
ql_dbg(ql_dbg_init, vha, 0xf072,
|
|
"Registering ICB vector 0x%x for atio que.\n",
|
|
msix->entry);
|
|
}
|
|
} else {
|
|
/* INTx|MSI */
|
|
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
|
|
icb->msix_atio = 0;
|
|
icb->firmware_options_2 |= BIT_26;
|
|
ql_dbg(ql_dbg_init, vha, 0xf072,
|
|
"%s: Use INTx for ATIOQ.\n", __func__);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
u32 tmp;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
|
|
if (!ha->tgt.saved_set) {
|
|
/* We save only once */
|
|
ha->tgt.saved_exchange_count = nv->exchange_count;
|
|
ha->tgt.saved_firmware_options_1 =
|
|
nv->firmware_options_1;
|
|
ha->tgt.saved_firmware_options_2 =
|
|
nv->firmware_options_2;
|
|
ha->tgt.saved_firmware_options_3 =
|
|
nv->firmware_options_3;
|
|
ha->tgt.saved_set = 1;
|
|
}
|
|
|
|
if (qla_tgt_mode_enabled(vha))
|
|
nv->exchange_count = cpu_to_le16(0xFFFF);
|
|
else /* dual */
|
|
nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
|
|
|
|
/* Enable target mode */
|
|
nv->firmware_options_1 |= cpu_to_le32(BIT_4);
|
|
|
|
/* Disable ini mode, if requested */
|
|
if (qla_tgt_mode_enabled(vha))
|
|
nv->firmware_options_1 |= cpu_to_le32(BIT_5);
|
|
|
|
/* Disable Full Login after LIP */
|
|
nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
|
|
/* Enable initial LIP */
|
|
nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
|
|
if (ql2xtgt_tape_enable)
|
|
/* Enable FC Tape support */
|
|
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
|
|
else
|
|
/* Disable FC Tape support */
|
|
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
|
|
|
|
/* Disable Full Login after LIP */
|
|
nv->host_p &= cpu_to_le32(~BIT_10);
|
|
|
|
/*
|
|
* clear BIT 15 explicitly as we have seen at least
|
|
* a couple of instances where this was set and this
|
|
* was causing the firmware to not be initialized.
|
|
*/
|
|
nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
|
|
/* Enable target PRLI control */
|
|
nv->firmware_options_2 |= cpu_to_le32(BIT_14);
|
|
|
|
if (IS_QLA25XX(ha)) {
|
|
/* Change Loop-prefer to Pt-Pt */
|
|
tmp = ~(BIT_4|BIT_5|BIT_6);
|
|
nv->firmware_options_2 &= cpu_to_le32(tmp);
|
|
tmp = P2P << 4;
|
|
nv->firmware_options_2 |= cpu_to_le32(tmp);
|
|
}
|
|
} else {
|
|
if (ha->tgt.saved_set) {
|
|
nv->exchange_count = ha->tgt.saved_exchange_count;
|
|
nv->firmware_options_1 =
|
|
ha->tgt.saved_firmware_options_1;
|
|
nv->firmware_options_2 =
|
|
ha->tgt.saved_firmware_options_2;
|
|
nv->firmware_options_3 =
|
|
ha->tgt.saved_firmware_options_3;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (ha->base_qpair->enable_class_2) {
|
|
if (vha->flags.init_done)
|
|
fc_host_supported_classes(vha->host) =
|
|
FC_COS_CLASS2 | FC_COS_CLASS3;
|
|
|
|
nv->firmware_options_2 |= cpu_to_le32(BIT_8);
|
|
} else {
|
|
if (vha->flags.init_done)
|
|
fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
|
|
|
|
nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
|
|
}
|
|
}
|
|
|
|
void
|
|
qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
|
|
struct init_cb_24xx *icb)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
if (ha->tgt.node_name_set) {
|
|
memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
|
|
icb->firmware_options_1 |= cpu_to_le32(BIT_14);
|
|
}
|
|
}
|
|
|
|
void
|
|
qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
u32 tmp;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
|
|
if (!ha->tgt.saved_set) {
|
|
/* We save only once */
|
|
ha->tgt.saved_exchange_count = nv->exchange_count;
|
|
ha->tgt.saved_firmware_options_1 =
|
|
nv->firmware_options_1;
|
|
ha->tgt.saved_firmware_options_2 =
|
|
nv->firmware_options_2;
|
|
ha->tgt.saved_firmware_options_3 =
|
|
nv->firmware_options_3;
|
|
ha->tgt.saved_set = 1;
|
|
}
|
|
|
|
if (qla_tgt_mode_enabled(vha))
|
|
nv->exchange_count = cpu_to_le16(0xFFFF);
|
|
else /* dual */
|
|
nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
|
|
|
|
/* Enable target mode */
|
|
nv->firmware_options_1 |= cpu_to_le32(BIT_4);
|
|
|
|
/* Disable ini mode, if requested */
|
|
if (qla_tgt_mode_enabled(vha))
|
|
nv->firmware_options_1 |= cpu_to_le32(BIT_5);
|
|
/* Disable Full Login after LIP */
|
|
nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
|
|
/* Enable initial LIP */
|
|
nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
|
|
/*
|
|
* clear BIT 15 explicitly as we have seen at
|
|
* least a couple of instances where this was set
|
|
* and this was causing the firmware to not be
|
|
* initialized.
|
|
*/
|
|
nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
|
|
if (ql2xtgt_tape_enable)
|
|
/* Enable FC tape support */
|
|
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
|
|
else
|
|
/* Disable FC tape support */
|
|
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
|
|
|
|
/* Disable Full Login after LIP */
|
|
nv->host_p &= cpu_to_le32(~BIT_10);
|
|
/* Enable target PRLI control */
|
|
nv->firmware_options_2 |= cpu_to_le32(BIT_14);
|
|
|
|
/* Change Loop-prefer to Pt-Pt */
|
|
tmp = ~(BIT_4|BIT_5|BIT_6);
|
|
nv->firmware_options_2 &= cpu_to_le32(tmp);
|
|
tmp = P2P << 4;
|
|
nv->firmware_options_2 |= cpu_to_le32(tmp);
|
|
} else {
|
|
if (ha->tgt.saved_set) {
|
|
nv->exchange_count = ha->tgt.saved_exchange_count;
|
|
nv->firmware_options_1 =
|
|
ha->tgt.saved_firmware_options_1;
|
|
nv->firmware_options_2 =
|
|
ha->tgt.saved_firmware_options_2;
|
|
nv->firmware_options_3 =
|
|
ha->tgt.saved_firmware_options_3;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (ha->base_qpair->enable_class_2) {
|
|
if (vha->flags.init_done)
|
|
fc_host_supported_classes(vha->host) =
|
|
FC_COS_CLASS2 | FC_COS_CLASS3;
|
|
|
|
nv->firmware_options_2 |= cpu_to_le32(BIT_8);
|
|
} else {
|
|
if (vha->flags.init_done)
|
|
fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
|
|
|
|
nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
|
|
}
|
|
}
|
|
|
|
void
|
|
qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha,
|
|
struct init_cb_81xx *icb)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
if (ha->tgt.node_name_set) {
|
|
memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
|
|
icb->firmware_options_1 |= cpu_to_le32(BIT_14);
|
|
}
|
|
}
|
|
|
|
void
|
|
qlt_83xx_iospace_config(struct qla_hw_data *ha)
|
|
{
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
ha->msix_count += 1; /* For ATIO Q */
|
|
}
|
|
|
|
|
|
void
|
|
qlt_modify_vp_config(struct scsi_qla_host *vha,
|
|
struct vp_config_entry_24xx *vpmod)
|
|
{
|
|
/* enable target mode. Bit5 = 1 => disable */
|
|
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
|
|
vpmod->options_idx1 &= ~BIT_5;
|
|
|
|
/* Disable ini mode, if requested. bit4 = 1 => disable */
|
|
if (qla_tgt_mode_enabled(vha))
|
|
vpmod->options_idx1 &= ~BIT_4;
|
|
}
|
|
|
|
void
|
|
qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
|
|
{
|
|
int rc;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
if ((ql2xenablemsix == 0) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
|
|
IS_QLA28XX(ha)) {
|
|
ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in;
|
|
ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out;
|
|
} else {
|
|
ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in;
|
|
ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out;
|
|
}
|
|
|
|
mutex_init(&base_vha->vha_tgt.tgt_mutex);
|
|
mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex);
|
|
|
|
INIT_LIST_HEAD(&base_vha->unknown_atio_list);
|
|
INIT_DELAYED_WORK(&base_vha->unknown_atio_work,
|
|
qlt_unknown_atio_work_fn);
|
|
|
|
qlt_clear_mode(base_vha);
|
|
|
|
rc = btree_init32(&ha->tgt.host_map);
|
|
if (rc)
|
|
ql_log(ql_log_info, base_vha, 0xd03d,
|
|
"Unable to initialize ha->host_map btree\n");
|
|
|
|
qlt_update_vp_map(base_vha, SET_VP_IDX);
|
|
}
|
|
|
|
irqreturn_t
|
|
qla83xx_msix_atio_q(int irq, void *dev_id)
|
|
{
|
|
struct rsp_que *rsp;
|
|
scsi_qla_host_t *vha;
|
|
struct qla_hw_data *ha;
|
|
unsigned long flags;
|
|
|
|
rsp = (struct rsp_que *) dev_id;
|
|
ha = rsp->hw;
|
|
vha = pci_get_drvdata(ha->pdev);
|
|
|
|
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
|
|
|
|
qlt_24xx_process_atio_queue(vha, 0);
|
|
|
|
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void
|
|
qlt_handle_abts_recv_work(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;
|
|
unsigned long flags;
|
|
|
|
if (qla2x00_reset_active(vha) ||
|
|
(op->chip_reset != ha->base_qpair->chip_reset))
|
|
return;
|
|
|
|
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
|
|
qlt_24xx_process_atio_queue(vha, 0);
|
|
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
kfree(op);
|
|
}
|
|
|
|
void
|
|
qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
|
|
response_t *pkt)
|
|
{
|
|
struct qla_tgt_sess_op *op;
|
|
|
|
op = kzalloc(sizeof(*op), GFP_ATOMIC);
|
|
|
|
if (!op) {
|
|
/* do not reach for ATIO queue here. This is best effort err
|
|
* recovery at this point.
|
|
*/
|
|
qlt_response_pkt_all_vps(vha, rsp, pkt);
|
|
return;
|
|
}
|
|
|
|
memcpy(&op->atio, pkt, sizeof(*pkt));
|
|
op->vha = vha;
|
|
op->chip_reset = vha->hw->base_qpair->chip_reset;
|
|
op->rsp = rsp;
|
|
INIT_WORK(&op->work, qlt_handle_abts_recv_work);
|
|
queue_work(qla_tgt_wq, &op->work);
|
|
return;
|
|
}
|
|
|
|
int
|
|
qlt_mem_alloc(struct qla_hw_data *ha)
|
|
{
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return 0;
|
|
|
|
ha->tgt.tgt_vp_map = kcalloc(MAX_MULTI_ID_FABRIC,
|
|
sizeof(struct qla_tgt_vp_map),
|
|
GFP_KERNEL);
|
|
if (!ha->tgt.tgt_vp_map)
|
|
return -ENOMEM;
|
|
|
|
ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
|
|
(ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
|
|
&ha->tgt.atio_dma, GFP_KERNEL);
|
|
if (!ha->tgt.atio_ring) {
|
|
kfree(ha->tgt.tgt_vp_map);
|
|
return -ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
qlt_mem_free(struct qla_hw_data *ha)
|
|
{
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
if (ha->tgt.atio_ring) {
|
|
dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
|
|
sizeof(struct atio_from_isp), ha->tgt.atio_ring,
|
|
ha->tgt.atio_dma);
|
|
}
|
|
ha->tgt.atio_ring = NULL;
|
|
ha->tgt.atio_dma = 0;
|
|
kfree(ha->tgt.tgt_vp_map);
|
|
ha->tgt.tgt_vp_map = NULL;
|
|
}
|
|
|
|
/* vport_slock to be held by the caller */
|
|
void
|
|
qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
|
|
{
|
|
void *slot;
|
|
u32 key;
|
|
int rc;
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
key = vha->d_id.b24;
|
|
|
|
switch (cmd) {
|
|
case SET_VP_IDX:
|
|
vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha;
|
|
break;
|
|
case SET_AL_PA:
|
|
slot = btree_lookup32(&vha->hw->tgt.host_map, key);
|
|
if (!slot) {
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018,
|
|
"Save vha in host_map %p %06x\n", vha, key);
|
|
rc = btree_insert32(&vha->hw->tgt.host_map,
|
|
key, vha, GFP_ATOMIC);
|
|
if (rc)
|
|
ql_log(ql_log_info, vha, 0xd03e,
|
|
"Unable to insert s_id into host_map: %06x\n",
|
|
key);
|
|
return;
|
|
}
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019,
|
|
"replace existing vha in host_map %p %06x\n", vha, key);
|
|
btree_update32(&vha->hw->tgt.host_map, key, vha);
|
|
break;
|
|
case RESET_VP_IDX:
|
|
vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL;
|
|
break;
|
|
case RESET_AL_PA:
|
|
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a,
|
|
"clear vha in host_map %p %06x\n", vha, key);
|
|
slot = btree_lookup32(&vha->hw->tgt.host_map, key);
|
|
if (slot)
|
|
btree_remove32(&vha->hw->tgt.host_map, key);
|
|
vha->d_id.b24 = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id)
|
|
{
|
|
|
|
if (!vha->d_id.b24) {
|
|
vha->d_id = id;
|
|
qlt_update_vp_map(vha, SET_AL_PA);
|
|
} else if (vha->d_id.b24 != id.b24) {
|
|
qlt_update_vp_map(vha, RESET_AL_PA);
|
|
vha->d_id = id;
|
|
qlt_update_vp_map(vha, SET_AL_PA);
|
|
}
|
|
}
|
|
|
|
static int __init qlt_parse_ini_mode(void)
|
|
{
|
|
if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
|
|
ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
|
|
else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
|
|
ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
|
|
else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
|
|
ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
|
|
else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0)
|
|
ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL;
|
|
else
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
int __init qlt_init(void)
|
|
{
|
|
int ret;
|
|
|
|
BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
|
|
BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
|
|
|
|
if (!qlt_parse_ini_mode()) {
|
|
ql_log(ql_log_fatal, NULL, 0xe06b,
|
|
"qlt_parse_ini_mode() failed\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return 0;
|
|
|
|
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, 0xd04b,
|
|
"kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
|
|
sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
|
|
0, NULL);
|
|
|
|
if (!qla_tgt_plogi_cachep) {
|
|
ql_log(ql_log_fatal, NULL, 0xe06d,
|
|
"kmem_cache_create for qla_tgt_plogi_cachep failed\n");
|
|
ret = -ENOMEM;
|
|
goto out_mgmt_cmd_cachep;
|
|
}
|
|
|
|
qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
|
|
mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
|
|
if (!qla_tgt_mgmt_cmd_mempool) {
|
|
ql_log(ql_log_fatal, NULL, 0xe06e,
|
|
"mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
|
|
ret = -ENOMEM;
|
|
goto out_plogi_cachep;
|
|
}
|
|
|
|
qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
|
|
if (!qla_tgt_wq) {
|
|
ql_log(ql_log_fatal, NULL, 0xe06f,
|
|
"alloc_workqueue for qla_tgt_wq failed\n");
|
|
ret = -ENOMEM;
|
|
goto out_cmd_mempool;
|
|
}
|
|
/*
|
|
* Return 1 to signal that initiator-mode is being disabled
|
|
*/
|
|
return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
|
|
|
|
out_cmd_mempool:
|
|
mempool_destroy(qla_tgt_mgmt_cmd_mempool);
|
|
out_plogi_cachep:
|
|
kmem_cache_destroy(qla_tgt_plogi_cachep);
|
|
out_mgmt_cmd_cachep:
|
|
kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
|
|
return ret;
|
|
}
|
|
|
|
void qlt_exit(void)
|
|
{
|
|
if (!QLA_TGT_MODE_ENABLED())
|
|
return;
|
|
|
|
destroy_workqueue(qla_tgt_wq);
|
|
mempool_destroy(qla_tgt_mgmt_cmd_mempool);
|
|
kmem_cache_destroy(qla_tgt_plogi_cachep);
|
|
kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
|
|
}
|