#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/blkdev.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/list.h>
#include <linux/workqueue.h>
#include <linux/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include "qla_def.h"
#include "qla_target.h"
static int ql2xtgt_tape_enable;
module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xtgt_tape_enable,
"Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
module_param(qlini_mode, charp, S_IRUGO);
MODULE_PARM_DESC(qlini_mode,
"Determines when initiator mode will be enabled. Possible values: "
"\"exclusive\" - initiator mode will be enabled on load, "
"disabled on enabling target mode and then on disabling target mode "
"enabled back; "
"\"disabled\" - initiator mode will never be enabled; "
"\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
"when ready "
"\"enabled\" (default) - initiator mode will always stay enabled.");
int ql2xuctrlirq = 1;
module_param(ql2xuctrlirq, int, 0644);
MODULE_PARM_DESC(ql2xuctrlirq,
"User to control IRQ placement via smp_affinity."
"Valid with qlini_mode=disabled."
"1(default): enable");
int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
static int qla_sam_status = SAM_STAT_BUSY;
static int tc_sam_status = SAM_STAT_TASK_SET_FULL;
enum fcp_resp_rsp_codes {
FCP_TMF_CMPL = 0,
FCP_DATA_LEN_INVALID = 1,
FCP_CMND_FIELDS_INVALID = 2,
FCP_DATA_PARAM_MISMATCH = 3,
FCP_TMF_REJECTED = 4,
FCP_TMF_FAILED = 5,
FCP_TMF_INVALID_LUN = 9,
};
#define FCP_PTA_SIMPLE 0
#define FCP_PTA_HEADQ 1
#define FCP_PTA_ORDERED 2
#define FCP_PTA_ACA 4
#define FCP_PTA_MASK 7
#define FCP_PRI_SHIFT 3
#define FCP_PRI_RESVD_MASK 0x80
static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
struct atio_from_isp *pkt, uint8_t);
static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
response_t *pkt);
static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
int fn, void *iocb, int flags);
static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
struct atio_from_isp *atio, uint16_t status, int qfull);
static void qlt_disable_vha(struct scsi_qla_host *vha);
static void qlt_clear_tgt_db(struct qla_tgt *tgt);
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);
static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *imm, int ha_locked);
static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
fc_port_t *fcport, bool local);
void qlt_unreg_sess(struct fc_port *sess);
static void qlt_24xx_handle_abts(struct scsi_qla_host *,
struct abts_recv_from_24xx *);
static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
uint16_t);
static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t);
static inline uint32_t qlt_make_handle(struct qla_qpair *);
static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
struct kmem_cache *qla_tgt_plogi_cachep;
static mempool_t *qla_tgt_mgmt_cmd_mempool;
static struct workqueue_struct *qla_tgt_wq;
static DEFINE_MUTEX(qla_tgt_mutex);
static LIST_HEAD(qla_tgt_glist);
void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
{
scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
*dest = atomic_inc_return(&base_vha->generation_tick);
wmb();
}
static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
{
if (unlikely(vha->marker_needed != 0)) {
int rc = qla2x00_issue_marker(vha, vha_locked);
if (rc != QLA_SUCCESS) {
ql_dbg(ql_dbg_tgt, vha, 0xe03d,
"qla_target(%d): issue_marker() failed\n",
vha->vp_idx);
}
return rc;
}
return QLA_SUCCESS;
}
struct scsi_qla_host *qla_find_host_by_d_id(struct scsi_qla_host *vha,
be_id_t d_id)
{
struct scsi_qla_host *host;
uint32_t key;
if (vha->d_id.b.area == d_id.area &&
vha->d_id.b.domain == d_id.domain &&
vha->d_id.b.al_pa == d_id.al_pa)
return vha;
key = be_to_port_id(d_id).b24;
host = btree_lookup32(&vha->hw->host_map, key);
if (!host)
ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
"Unable to find host %06x\n", key);
return host;
}
static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
{
unsigned long flags;
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
vha->hw->tgt.num_pend_cmds++;
if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds)
vha->qla_stats.stat_max_pend_cmds =
vha->hw->tgt.num_pend_cmds;
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
}
static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
{
unsigned long flags;
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
vha->hw->tgt.num_pend_cmds--;
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
}
static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
struct atio_from_isp *atio, uint8_t ha_locked)
{
struct qla_tgt_sess_op *u;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
unsigned long flags;
unsigned int add_cdb_len = 0;
BUILD_BUG_ON(offsetof(struct qla_tgt_sess_op, atio) + sizeof(u->atio) != sizeof(*u));
if (tgt->tgt_stop) {
ql_dbg(ql_dbg_async, vha, 0x502c,
"qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
vha->vp_idx);
goto out_term;
}
if (atio->u.raw.entry_type == ATIO_TYPE7 &&
atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)
add_cdb_len =
((unsigned int) atio->u.isp24.fcp_cmnd.add_cdb_len) * 4;
u = kzalloc(sizeof(*u) + add_cdb_len, GFP_ATOMIC);
if (u == NULL)
goto out_term;
u->vha = vha;
memcpy(&u->atio, atio, sizeof(*atio) + add_cdb_len);
INIT_LIST_HEAD(&u->cmd_list);
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_add_tail(&u->cmd_list, &vha->unknown_atio_list);
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
schedule_delayed_work(&vha->unknown_atio_work, 1);
out:
return;
out_term:
qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked);
goto out;
}
static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
uint8_t ha_locked)
{
struct qla_tgt_sess_op *u, *t;
scsi_qla_host_t *host;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
unsigned long flags;
uint8_t queued = 0;
list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
if (u->aborted) {
ql_dbg(ql_dbg_async, vha, 0x502e,
"Freeing unknown %s %p, because of Abort\n",
"ATIO_TYPE7", u);
qlt_send_term_exchange(vha->hw->base_qpair, NULL,
&u->atio, ha_locked);
goto abort;
}
host = qla_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
if (host != NULL) {
ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
"Requeuing unknown ATIO_TYPE7 %p\n", u);
qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
} else if (tgt->tgt_stop) {
ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
"Freeing unknown %s %p, because tgt is being stopped\n",
"ATIO_TYPE7", u);
qlt_send_term_exchange(vha->hw->base_qpair, NULL,
&u->atio, ha_locked);
} else {
ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
"Reschedule u %p, vha %p, host %p\n", u, vha, host);
if (!queued) {
queued = 1;
schedule_delayed_work(&vha->unknown_atio_work,
1);
}
continue;
}
abort:
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_del(&u->cmd_list);
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
kfree(u);
}
}
void qlt_unknown_atio_work_fn(struct work_struct *work)
{
struct scsi_qla_host *vha = container_of(to_delayed_work(work),
struct scsi_qla_host, unknown_atio_work);
qlt_try_to_dequeue_unknown_atios(vha, 0);
}
static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
struct atio_from_isp *atio, uint8_t ha_locked)
{
ql_dbg(ql_dbg_tgt, vha, 0xe072,
"%s: qla_target(%d): type %x ox_id %04x\n",
__func__, vha->vp_idx, atio->u.raw.entry_type,
be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
switch (atio->u.raw.entry_type) {
case ATIO_TYPE7:
{
struct scsi_qla_host *host = qla_find_host_by_d_id(vha,
atio->u.isp24.fcp_hdr.d_id);
if (unlikely(NULL == host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe03e,
"qla_target(%d): Received ATIO_TYPE7 "
"with unknown d_id %x:%x:%x\n", vha->vp_idx,
atio->u.isp24.fcp_hdr.d_id.domain,
atio->u.isp24.fcp_hdr.d_id.area,
atio->u.isp24.fcp_hdr.d_id.al_pa);
qlt_queue_unknown_atio(vha, atio, ha_locked);
break;
}
if (unlikely(!list_empty(&vha->unknown_atio_list)))
qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
qlt_24xx_atio_pkt(host, atio, ha_locked);
break;
}
case IMMED_NOTIFY_TYPE:
{
struct scsi_qla_host *host = vha;
struct imm_ntfy_from_isp *entry =
(struct imm_ntfy_from_isp *)atio;
qlt_issue_marker(vha, ha_locked);
if ((entry->u.isp24.vp_index != 0xFF) &&
(entry->u.isp24.nport_handle != cpu_to_le16(0xFFFF))) {
host = qla_find_host_by_vp_idx(vha,
entry->u.isp24.vp_index);
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe03f,
"qla_target(%d): Received "
"ATIO (IMMED_NOTIFY_TYPE) "
"with unknown vp_index %d\n",
vha->vp_idx, entry->u.isp24.vp_index);
break;
}
}
qlt_24xx_atio_pkt(host, atio, ha_locked);
break;
}
case VP_RPT_ID_IOCB_TYPE:
qla24xx_report_id_acquisition(vha,
(struct vp_rpt_id_entry_24xx *)atio);
break;
case ABTS_RECV_24XX:
{
struct abts_recv_from_24xx *entry =
(struct abts_recv_from_24xx *)atio;
struct scsi_qla_host *host = qla_find_host_by_vp_idx(vha,
entry->vp_index);
unsigned long flags;
if (unlikely(!host)) {
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;
}
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__);
fallthrough;
case CTIO_TYPE7:
{
struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
struct scsi_qla_host *host = qla_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 = qla_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 = qla_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 = qla_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 = qla_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;
}
}
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;
if (sp->fcport->flags & FCF_FCSP_DEVICE) {
ql_dbg(ql_dbg_edif, vha, 0x20ef,
"%s %8phC edif: PLOGI- AUTH WAIT\n", __func__,
sp->fcport->port_name);
qla2x00_set_fcport_disc_state(sp->fcport,
DSC_LOGIN_AUTH_PEND);
qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
sp->fcport->d_id.b24);
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_NEEDED, sp->fcport->d_id.b24,
0, sp->fcport);
}
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);
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
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";
if (vha->hw->flags.edif_enabled &&
(le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP))
fcport->flags |= FCF_FCSP_DEVICE;
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";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_nack_sp_done);
sp->u.iocb_cmd.u.nack.ntfy = ntfy;
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:
kref_put(&sp->cmd_kref, qla2x00_sp_release);
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);
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 = NULL;
if (!fcport || !fcport->vha || !fcport->vha->hw)
return;
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);
}
}
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);
}
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;
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 {
port_id_t id;
int cmd_count;
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;
if (test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags)) {
res = 0;
goto out;
}
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);
out:
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;
INIT_LIST_HEAD(&logo.list);
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->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
sess->logout_completed = 0;
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->nvme_flag & NVME_FLAG_REGISTERED &&
!(sess->nvme_flag & NVME_FLAG_DELETING)) {
sess->nvme_flag |= NVME_FLAG_DELETING;
qla_nvme_unregister_remote_port(sess);
}
if (ha->flags.edif_enabled &&
(!own || own->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
sess->edif.authok = 0;
if (!ha->flags.host_shutting_down) {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s wwpn %8phC calling qla2x00_release_all_sadb\n",
__func__, sess->port_name);
qla2x00_release_all_sadb(vha, sess);
} else {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s bypassing release_all_sadb\n",
__func__);
}
qla_edif_clear_appdata(vha, sess);
qla_edif_sess_down(vha, sess);
}
}
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 > 230)
break;
}
ql_dbg(ql_dbg_disc, vha, 0xf087,
"%s: sess %p logout completed\n", __func__, sess);
}
if (!(sess->flags & FCF_FCP2_DEVICE) &&
qla2x00_eh_wait_for_pending_commands(sess->vha, sess->d_id.b24, 0, WAIT_TARGET)) {
ql_log(ql_log_warn, vha, 0x3027,
"IO not return. Resetting.\n");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_chip_reset(vha);
}
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(&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;
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);
qla2x00_dfs_remove_rport(vha, sess);
spin_lock_irqsave(&vha->work_lock, flags);
sess->flags &= ~FCF_ASYNC_SENT;
sess->deleted = QLA_SESS_DELETED;
sess->free_pending = 0;
spin_unlock_irqrestore(&vha->work_lock, flags);
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:
break;
}
}
if (vha->fcport_count == 0)
wake_up_all(&vha->fcport_waitQ);
}
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;
sess->flags |= FCF_ASYNC_SENT;
sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
if (sess->se_sess)
vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
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) {
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 (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
!sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
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);
return;
}
break;
case DSC_UPD_FCPORT:
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_log_warn, sess->vha, 0xe001,
"Scheduling sess %p for deletion %8phC fc4_type %x\n",
sess, sess->port_name, sess->fc4_type);
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);
}
}
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;
}
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;
}
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;
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);
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;
}
static inline int test_tgt_sess_count(struct qla_tgt *tgt)
{
struct qla_hw_data *ha = tgt->ha;
unsigned long flags;
int res;
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;
}
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_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);
do {
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
flush_work(&tgt->sess_work);
spin_lock_irqsave(&tgt->sess_work_lock, flags);
} while (!list_empty(&tgt->sess_works_list));
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);
if (!ha->flags.host_shutting_down &&
(qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
qlt_disable_vha(vha);
wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
mutex_unlock(&ha->optrom_mutex);
return 0;
}
EXPORT_SYMBOL(qlt_stop_phase1);
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(&tgt->ha->optrom_mutex);
mutex_lock(&vha->vha_tgt.tgt_mutex);
tgt->tgt_stop = 0;
tgt->tgt_stopped = 1;
mutex_unlock(&vha->vha_tgt.tgt_mutex);
mutex_unlock(&tgt->ha->optrom_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);
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);
}
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_obj(*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;
}
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_le16(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;
if (ntfy->u.isp24.status_subcode == ELS_PLOGI &&
(le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP);
}
ql_dbg(ql_dbg_tgt, vha, 0xe005,
"qla_target(%d): Sending 24xx Notify Ack %d\n",
vha->vp_idx, nack->u.isp24.status);
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;
__le32 f_ctl;
uint32_t 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)) {
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 = cpu_to_le16(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;
}
vha->vha_tgt.qla_tgt->abts_resp_expected++;
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
return rc;
}
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;
__le32 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 = cpu_to_le16(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;
}
vha->vha_tgt.qla_tgt->abts_resp_expected++;
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
}
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)
entry = &mcmd->orig_iocb.abts;
else
entry = (struct abts_recv_from_24xx *)pkt;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe082,
"qla_target(%d): tag %u: Sending TERM EXCH CTIO for ABTS\n",
vha->vp_idx, le32_to_cpu(entry->exchange_addr_to_abort));
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);
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);
}
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->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) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe085,
"qla_target(%d): tag %lld: aborted by TMR\n",
vha->vp_idx, cmd->se_cmd.tag);
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;
uint32_t tag;
switch (mcmd->tmr_func) {
case QLA_TGT_ABTS:
tag = le32_to_cpu(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) {
ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
"qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
mcmd->vha->vp_idx, rc);
mcmd->flags |= QLA24XX_MGMT_LLD_OWNED;
mcmd->fc_tm_rsp = FCP_TMF_FAILED;
qlt_xmit_tm_rsp(mcmd);
}
}
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];
struct qla_tgt_cmd *abort_cmd;
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;
mcmd->se_cmd.cpuid = h->cpuid;
abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
le32_to_cpu(abts->exchange_addr_to_abort));
if (!abort_cmd) {
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
return -EIO;
}
mcmd->unpacked_lun = abort_cmd->se_cmd.orig_fe_lun;
if (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;
}
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 = le32_to_cpu(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;
}
}
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 = cpu_to_le16(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;
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);
void qlt_free_ul_mcmd(struct qla_hw_data *ha, struct qla_tgt_mgmt_cmd *mcmd)
{
if (!mcmd)
return;
if (mcmd->flags & QLA24XX_MGMT_LLD_OWNED)
qlt_free_mcmd(mcmd);
else
ha->tgt.tgt_ops->free_mcmd(mcmd);
}
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 = cpu_to_le16(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);
ctio->u.status1.sense_data[0] = 0x70;
ctio->u.status1.sense_data[2] = sense_key;
ctio->u.status1.sense_data[7] = 0xa;
ctio->u.status1.sense_data[12] = asc;
ctio->u.status1.sense_data[13] = ascq;
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
out:
return;
}
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) {
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);
qlt_free_ul_mcmd(ha, 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);
}
if (free_mcmd)
qlt_free_ul_mcmd(ha, mcmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
}
EXPORT_SYMBOL(qlt_xmit_tm_rsp);
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 (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 {
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)) {
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;
}
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;
}
static inline void *qlt_get_req_pkt(struct req_que *req)
{
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;
}
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;
}
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;
struct qla_tgt_cmd *cmd = prm->cmd;
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)) {
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);
if (cmd->edif) {
if (cmd->dma_data_direction == DMA_TO_DEVICE)
prm->cmd->sess->edif.rx_bytes += cmd->bufflen;
if (cmd->dma_data_direction == DMA_FROM_DEVICE)
prm->cmd->sess->edif.tx_bytes += cmd->bufflen;
pkt->u.status0.edif_flags |= EF_EN_EDIF;
}
return 0;
}
static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
{
int cnt;
struct dsd64 *cur_dsd;
while (prm->seg_cnt > 0) {
cont_a64_entry_t *cont_pkt64 =
(cont_a64_entry_t *)qlt_get_req_pkt(
prm->cmd->qpair->req);
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;
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);
}
}
}
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);
cur_dsd = &pkt24->u.status0.dsd;
if (prm->seg_cnt)
pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
if (prm->seg_cnt == 0) {
cur_dsd->address = 0;
cur_dsd->length = 0;
return;
}
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;
if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
cmd = prm->cmd;
vha = cmd->vha;
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);
}
}
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 (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 v;
v = get_unaligned_be32(
&((uint32_t *)prm->sense_buffer)[i]);
put_unaligned_le32(v,
&((uint32_t *)ctio->u.status1.sense_data)[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));
}
}
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;
}
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;
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:
ctx->ref_tag = cpu_to_le32(lba);
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:
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;
}
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:
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;
}
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:
*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;
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;
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;
break;
default:
fw_prot_opts |= PO_MODE_DIF_PASS;
break;
}
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)) {
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;
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);
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 = cpu_to_le16(prm->tot_dsds);
pkt->transfer_length = cpu_to_le32(transfer_length);
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);
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 = cpu_to_le16(CRC_CONTEXT_LEN_FW);
if (!bundling) {
cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
} else {
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];
}
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;
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) {
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:
qpair->req->outstanding_cmds[h] = NULL;
return QLA_FUNCTION_FAILED;
}
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;
int pre_xmit_res;
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);
pre_xmit_res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
&full_req_cnt);
if (likely(cmd->jiffies_at_hw_st_entry == 0))
cmd->jiffies_at_hw_st_entry = get_jiffies_64();
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
if (unlikely(cmd->sent_term_exchg ||
cmd->sess->deleted ||
!qpair->fw_started ||
cmd->reset_count != qpair->chip_reset)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe101,
"qla_target(%d): tag %lld: skipping send response for aborted cmd\n",
vha->vp_idx, cmd->se_cmd.tag);
qlt_unmap_sg(vha, cmd);
cmd->state = QLA_TGT_STATE_PROCESSED;
vha->hw->tgt.tgt_ops->free_cmd(cmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return 0;
}
res = pre_xmit_res;
if (unlikely(res))
goto out_unmap_unlock;
if (xmit_type == QLA_TGT_XMIT_STATUS)
qpair->tgt_counters.core_qla_snd_status++;
else
qpair->tgt_counters.core_qla_que_buf++;
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);
if (!cmd->edif)
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 {
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);
memcpy(ctio, pkt, sizeof(*ctio));
ctio->entry_count = 1;
ctio->entry_type = CTIO_TYPE7;
ctio->dseg_count = 0;
ctio->u.status1.flags &= ~cpu_to_le16(
CTIO7_FLAGS_DATA_IN);
pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
pkt->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_DONT_RET_CTIO);
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;
cmd->cmd_sent_to_fw = 1;
cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
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);
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;
int pci_map_res;
struct qla_qpair *qpair = cmd->qpair;
if (likely(cmd->jiffies_at_hw_st_entry == 0))
cmd->jiffies_at_hw_st_entry = get_jiffies_64();
memset(&prm, 0, sizeof(prm));
prm.cmd = cmd;
prm.tgt = tgt;
prm.sg = NULL;
prm.req_cnt = 1;
pci_map_res = qlt_pci_map_calc_cnt(&prm);
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
if (unlikely(cmd->sent_term_exchg ||
cmd->sess->deleted ||
!qpair->fw_started ||
cmd->reset_count != qpair->chip_reset)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe102,
"qla_target(%d): tag %lld: skipping data-out for aborted cmd\n",
vha->vp_idx, cmd->se_cmd.tag);
qlt_unmap_sg(vha, cmd);
cmd->aborted = 1;
cmd->write_data_transferred = 0;
cmd->state = QLA_TGT_STATE_DATA_IN;
cmd->jiffies_at_hw_st_entry = 0;
vha->hw->tgt.tgt_ops->handle_data(cmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return 0;
}
if (unlikely(pci_map_res != 0)) {
res = -EAGAIN;
goto out_unlock_free_unmap;
}
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);
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:
cmd->jiffies_at_hw_st_entry = 0;
qlt_unmap_sg(vha, cmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return res;
}
EXPORT_SYMBOL(qlt_rdy_to_xfer);
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;
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;
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;
}
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;
}
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:
cmd->state = QLA_TGT_STATE_DATA_IN;
cmd->jiffies_at_hw_st_entry = 0;
vha->hw->tgt.tgt_ops->handle_data(cmd);
break;
default:
if (cmd->sent_term_exchg) {
vha->hw->tgt.tgt_ops->free_cmd(cmd);
break;
}
qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
ascq);
vha->hw->tgt.tgt_ops->free_cmd(cmd);
break;
}
}
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 &
cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
}
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);
}
void qlt_srr_abort(struct qla_tgt_cmd *cmd, bool reject)
{
struct scsi_qla_host *vha = cmd->vha;
struct qla_tgt_srr *srr = cmd->srr;
if (srr->imm_ntfy_recvd) {
if (reject)
srr->reject = true;
else
srr->aborted = true;
if (srr->ctio_recvd) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1102e,
"qla_target(%d): tag %lld: %s: SRR already scheduled\n",
vha->vp_idx, cmd->se_cmd.tag, __func__);
} else {
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
unsigned long flags;
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1102f,
"qla_target(%d): tag %lld: %s: schedule SRR %s\n",
vha->vp_idx, cmd->se_cmd.tag, __func__,
reject ? "reject" : "abort");
cmd->srr = NULL;
srr->cmd = NULL;
spin_lock_irqsave(&tgt->srr_lock, flags);
list_add_tail(&srr->srr_list_entry, &tgt->srr_list);
queue_work(qla_tgt_wq, &tgt->srr_work);
spin_unlock_irqrestore(&tgt->srr_lock, flags);
}
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11030,
"qla_target(%d): tag %lld: %s: no IMM SRR; free SRR\n",
vha->vp_idx, cmd->se_cmd.tag, __func__);
cmd->srr = NULL;
kfree(srr);
}
}
EXPORT_SYMBOL(qlt_srr_abort);
static int __qlt_send_term_exchange(struct qla_qpair *qpair,
struct qla_tgt_cmd *cmd,
struct atio_from_isp *atio)
{
struct ctio7_to_24xx *ctio24;
struct scsi_qla_host *vha;
uint16_t loop_id;
uint16_t temp;
if (cmd) {
vha = cmd->vha;
loop_id = cmd->loop_id;
} else {
port_id_t id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
struct qla_hw_data *ha;
struct fc_port *sess;
unsigned long flags;
vha = qpair->vha;
ha = vha->hw;
loop_id = CTIO7_NHANDLE_UNRECOGNIZED;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
if (sess)
loop_id = sess->loop_id;
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
if (cmd) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe009,
"qla_target(%d): tag %lld: Sending TERM EXCH CTIO state %d cmd_sent_to_fw %u\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->state,
cmd->cmd_sent_to_fw);
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe009,
"qla_target(%d): tag %u: Sending TERM EXCH CTIO (no cmd)\n",
vha->vp_idx, le32_to_cpu(atio->u.isp24.exchange_addr));
}
ctio24 = qla2x00_alloc_iocbs_ready(qpair, NULL);
if (!ctio24) {
ql_dbg(ql_dbg_tgt, vha, 0xe050,
"qla_target(%d): %s failed: unable to allocate "
"request packet\n", vha->vp_idx, __func__);
return -ENOMEM;
}
qpair->tgt_counters.num_term_xchg_sent++;
ctio24->entry_type = CTIO_TYPE7;
ctio24->entry_count = 1;
ctio24->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
ctio24->nport_handle = cpu_to_le16(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_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);
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
return 0;
}
void qlt_send_term_exchange(struct qla_qpair *qpair,
struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked)
{
struct scsi_qla_host *vha;
unsigned long flags = 0;
int rc;
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) {
cmd->sent_term_exchg = 1;
cmd->aborted = 1;
cmd->jiffies_at_term_exchg = jiffies;
}
if (!ha_locked)
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return;
}
EXPORT_SYMBOL(qlt_send_term_exchange);
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);
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 scsi_qla_host *vha = cmd->vha;
struct qla_qpair *qpair = cmd->qpair;
unsigned long flags;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
"qla_target(%d): tag %lld: cmd being aborted (state %d) %s; %s\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->state,
cmd->cmd_sent_to_fw ? "sent to fw" : "not sent to fw",
cmd->aborted ? "aborted" : "not aborted");
if (cmd->state != QLA_TGT_STATE_DONE && !cmd->sent_term_exchg) {
if (!qpair->fw_started ||
cmd->reset_count != qpair->chip_reset) {
cmd->sent_term_exchg = 1;
cmd->aborted = 1;
cmd->jiffies_at_term_exchg = jiffies;
} else {
qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1);
}
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
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->q_full)
qlt_decr_num_pend_cmds(cmd->vha);
BUG_ON(cmd->sg_mapped);
if (unlikely(cmd->free_sg)) {
cmd->free_sg = 0;
qlt_free_sg(cmd);
}
if (unlikely(cmd->srr))
qlt_srr_abort(cmd, false);
if (unlikely(cmd->aborted ||
(cmd->trc_flags & (TRC_CTIO_STRANGE | TRC_CTIO_ERR |
TRC_SRR_CTIO | TRC_SRR_IMM)))) {
ql_dbg(ql_dbg_tgt_mgt, cmd->vha, 0xe086,
"qla_target(%d): tag %lld: free cmd (trc_flags %x, aborted %u, sent_term_exchg %u, rsp_sent %u)\n",
cmd->vha->vp_idx, cmd->se_cmd.tag,
cmd->trc_flags, cmd->aborted, cmd->sent_term_exchg,
cmd->rsp_sent);
}
if (unlikely(cmd->cdb != &cmd->atio.u.isp24.fcp_cmnd.cdb[0])) {
kfree(cmd->cdb);
cmd->cdb = &cmd->atio.u.isp24.fcp_cmnd.cdb[0];
cmd->cdb_len = 16;
}
cmd->jiffies_at_free = get_jiffies_64();
if (!sess || !sess->se_sess) {
WARN_ON(1);
return;
}
cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
}
EXPORT_SYMBOL(qlt_free_cmd);
static int qlt_prepare_srr_ctio(struct qla_qpair *qpair,
struct qla_tgt_cmd *cmd)
{
struct scsi_qla_host *vha = cmd->vha;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_tgt_srr *srr;
cmd->trc_flags |= TRC_SRR_CTIO;
srr = cmd->srr;
if (srr != NULL) {
WARN_ON(srr->ctio_recvd);
WARN_ON(!srr->imm_ntfy_recvd);
if (vha->hw->tgt.tgt_ops->get_cmd_ref(cmd)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11037,
"qla_target(%d): tag %lld: unable to get cmd ref for SRR processing\n",
vha->vp_idx, cmd->se_cmd.tag);
qlt_srr_abort(cmd, true);
return -ESHUTDOWN;
}
srr->ctio_recvd = true;
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1100f,
"qla_target(%d): tag %lld: Scheduling SRR work\n",
vha->vp_idx, cmd->se_cmd.tag);
spin_lock(&tgt->srr_lock);
list_add_tail(&srr->srr_list_entry, &tgt->srr_list);
queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &tgt->srr_work);
spin_unlock(&tgt->srr_lock);
return 0;
}
srr = kzalloc_obj(*srr, GFP_ATOMIC);
if (!srr)
return -ENOMEM;
srr->ctio_recvd = true;
srr->cmd = cmd;
srr->reset_count = cmd->reset_count;
cmd->srr = srr;
return 0;
}
static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
struct rsp_que *rsp, uint32_t handle, uint8_t cmd_type,
const 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) {
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;
}
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 = req->outstanding_cmds[h];
if (unlikely(cmd == NULL)) {
if (cmd_type == TYPE_TGT_CMD) {
__le32 ctio_exchange_addr =
((const struct ctio7_from_24xx *)ctio)->
exchange_address;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe053,
"qla_target(%d): tag %u: handle %x: cmd detached; ignoring CTIO (handle %x req->id %d rsp->id %d)\n",
vha->vp_idx, le32_to_cpu(ctio_exchange_addr), h,
handle, req->id, rsp->id);
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe053,
"qla_target(%d): cmd detached; ignoring CTIO (handle %x req->id %d rsp->id %d)\n",
vha->vp_idx, handle, req->id, rsp->id);
}
return NULL;
}
if (unlikely(((srb_t *)cmd)->cmd_type != cmd_type)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe087,
"qla_target(%d): handle %x: cmd detached; ignoring CTIO (cmd_type mismatch)\n",
vha->vp_idx, h);
return NULL;
}
switch (cmd_type) {
case TYPE_TGT_CMD: {
__le32 ctio_exchange_addr =
((const struct ctio7_from_24xx *)ctio)->
exchange_address;
__le32 cmd_exchange_addr =
((struct qla_tgt_cmd *)cmd)->
atio.u.isp24.exchange_addr;
BUILD_BUG_ON(offsetof(struct ctio7_from_24xx,
exchange_address) !=
offsetof(struct ctio_crc_from_fw,
exchange_address));
if (unlikely(ctio_exchange_addr != cmd_exchange_addr)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe088,
"qla_target(%d): tag %u: handle %x: cmd detached; ignoring CTIO (exchange address mismatch)\n",
vha->vp_idx, le32_to_cpu(ctio_exchange_addr), h);
return NULL;
}
break;
}
case TYPE_TGT_TMCMD: {
__le32 ctio_exchange_addr =
((const struct abts_resp_from_24xx_fw *)ctio)->
exchange_address;
__le32 cmd_exchange_addr =
((struct qla_tgt_mgmt_cmd *)cmd)->
orig_iocb.abts.exchange_address;
if (unlikely(ctio_exchange_addr != cmd_exchange_addr)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe089,
"qla_target(%d): ABTS: handle %x: cmd detached; ignoring CTIO (exchange address mismatch)\n",
vha->vp_idx, h);
return NULL;
}
break;
}
}
req->outstanding_cmds[h] = NULL;
return cmd;
}
static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
struct rsp_que *rsp, uint32_t handle, uint32_t status,
struct ctio7_from_24xx *ctio)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_cmd *cmd;
struct qla_qpair *qpair = rsp->qpair;
uint16_t ctio_flags;
if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
if (status != CTIO_SUCCESS) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
"Intermediate CTIO received"
" (status %x)\n", status);
}
return;
}
ctio_flags = le16_to_cpu(ctio->flags);
cmd = qlt_ctio_to_cmd(vha, rsp, handle, TYPE_TGT_CMD, ctio);
if (unlikely(cmd == NULL)) {
if ((handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE &&
(ctio_flags & 0xe1ff) == (CTIO7_FLAGS_STATUS_MODE_1 |
CTIO7_FLAGS_TERMINATE)) {
u32 tag = le32_to_cpu(ctio->exchange_address);
if (status == CTIO_SUCCESS)
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe083,
"qla_target(%d): tag %u: term exchange successful\n",
vha->vp_idx, tag);
else
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe084,
"qla_target(%d): tag %u: term exchange failed; status = 0x%x\n",
vha->vp_idx, tag, status);
}
return;
}
if ((ctio_flags & CTIO7_FLAGS_DATA_OUT) && cmd->sess)
qlt_chk_edif_rx_sa_delete_pending(vha, cmd->sess, ctio);
cmd->cmd_sent_to_fw = 0;
qlt_unmap_sg(vha, cmd);
if (unlikely(status != CTIO_SUCCESS)) {
u8 op = cmd->cdb ? cmd->cdb[0] : 0;
bool term_exchg = false;
if (ctio_flags & OF_TERM_EXCH) {
cmd->sent_term_exchg = 1;
cmd->aborted = 1;
cmd->jiffies_at_term_exchg = jiffies;
}
switch (status & 0xFFFF) {
case CTIO_INVALID_RX_ID:
term_exchg = true;
if (printk_ratelimit())
dev_info(&vha->hw->pdev->dev,
"qla_target(%d): tag %lld, op %x: CTIO with INVALID_RX_ID status 0x%x received (state %d, port %8phC, LUN %lld, ATIO attr %x, CTIO Flags %x|%x)\n",
vha->vp_idx, cmd->se_cmd.tag, op,
status, cmd->state, cmd->sess->port_name,
cmd->unpacked_lun, 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:
term_exchg = true;
fallthrough;
case CTIO_TIMEOUT:
{
const char *status_str;
switch (status & 0xFFFF) {
case CTIO_LIP_RESET:
status_str = "LIP_RESET";
break;
case CTIO_TARGET_RESET:
status_str = "TARGET_RESET";
break;
case CTIO_ABORTED:
status_str = "ABORTED";
break;
case CTIO_TIMEOUT:
default:
status_str = "TIMEOUT";
break;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
"qla_target(%d): tag %lld, op %x: CTIO with %s status 0x%x received (state %d, port %8phC, LUN %lld)\n",
vha->vp_idx, cmd->se_cmd.tag, op,
status_str, status, cmd->state,
cmd->sess->port_name, cmd->unpacked_lun);
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): tag %lld, op %x: CTIO with %s status 0x%x received (state %d, port %8phC, LUN %lld)\n",
vha->vp_idx, cmd->se_cmd.tag, op,
logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
status, cmd->state, cmd->sess->port_name,
cmd->unpacked_lun);
term_exchg = true;
if (logged_out && cmd->sess) {
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_SRR_RECEIVED:
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1100e,
"qla_target(%d): tag %lld, op %x: CTIO with SRR status 0x%x received (state %d, port %8phC, LUN %lld, bufflen %d)\n",
vha->vp_idx, cmd->se_cmd.tag, op, status,
cmd->state, cmd->sess->port_name,
cmd->unpacked_lun, cmd->bufflen);
if (qlt_prepare_srr_ctio(qpair, cmd) == 0)
return;
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): tag %lld, op %x: CTIO with DIF_ERROR status 0x%x received (state %d, port %8phC, LUN %lld, actual_dif[0x%llx] expect_dif[0x%llx])\n",
vha->vp_idx, cmd->se_cmd.tag, op, status,
cmd->state, cmd->sess->port_name,
cmd->unpacked_lun,
*((u64 *)&crc->actual_dif[0]),
*((u64 *)&crc->expected_dif[0]));
qlt_handle_dif_error(qpair, cmd, crc);
return;
}
case CTIO_FAST_AUTH_ERR:
case CTIO_FAST_INCOMP_PAD_LEN:
case CTIO_FAST_INVALID_REQ:
case CTIO_FAST_SPI_ERR:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
"qla_target(%d): tag %lld, op %x: CTIO with EDIF error status 0x%x received (state %d, port %8phC, LUN %lld)\n",
vha->vp_idx, cmd->se_cmd.tag, op, status,
cmd->state, cmd->sess->port_name,
cmd->unpacked_lun);
break;
default:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
"qla_target(%d): tag %lld, op %x: CTIO with error status 0x%x received (state %d, port %8phC, LUN %lld)\n",
vha->vp_idx, cmd->se_cmd.tag, op, status,
cmd->state, cmd->sess->port_name,
cmd->unpacked_lun);
break;
}
cmd->trc_flags |= TRC_CTIO_ERR;
if (!cmd->sent_term_exchg &&
(term_exchg || cmd->state != QLA_TGT_STATE_NEED_DATA))
qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1);
}
if (unlikely(cmd->srr != NULL)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11031,
"qla_target(%d): tag %lld, op %x: expected CTIO with SRR status; got status 0x%x: state %d, bufflen %d\n",
vha->vp_idx, cmd->se_cmd.tag,
cmd->cdb ? cmd->cdb[0] : 0, status, cmd->state,
cmd->bufflen);
qlt_srr_abort(cmd, true);
}
if (cmd->state == QLA_TGT_STATE_PROCESSED) {
cmd->trc_flags |= TRC_CTIO_DONE;
if (likely(status == CTIO_SUCCESS))
cmd->rsp_sent = 1;
} 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;
cmd->jiffies_at_hw_st_entry = 0;
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,
"qla_target(%d): tag %lld: Aborted command finished\n",
vha->vp_idx, cmd->se_cmd.tag);
} else {
cmd->trc_flags |= TRC_CTIO_STRANGE;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
"qla_target(%d): tag %lld: A command in state (%d) should not return a CTIO complete\n",
vha->vp_idx, cmd->se_cmd.tag, 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;
}
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 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;
}
cmd->se_cmd.tag = le32_to_cpu(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, cmd->cdb, data_length,
fcp_task_attr, data_dir, bidi);
if (ret != 0)
goto out_term;
ha->tgt.tgt_ops->put_sess(sess);
return;
out_term:
ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
cmd->trc_flags |= TRC_DO_WORK_ERR;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1);
qlt_decr_num_pend_cmds(vha);
if (unlikely(cmd->cdb != &cmd->atio.u.isp24.fcp_cmnd.cdb[0])) {
kfree(cmd->cdb);
cmd->cdb = &cmd->atio.u.isp24.fcp_cmnd.cdb[0];
cmd->cdb_len = 16;
}
cmd->vha->hw->tgt.tgt_ops->rel_cmd(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)) {
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 void memcpy_atio(struct atio_from_isp *dst,
const struct atio_from_isp *src)
{
int len;
memcpy(dst, src, sizeof(*dst));
len = src->u.isp24.fcp_cmnd.add_cdb_len;
if (unlikely(len != 0)) {
dst->u.isp24.fcp_cmnd.add_cdb_len = 0;
memcpy(&dst->u.isp24.fcp_cmnd.add_cdb[0],
&src->u.isp24.fcp_cmnd.add_cdb[len * 4],
4);
}
}
static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
struct fc_port *sess,
struct atio_from_isp *atio)
{
struct qla_tgt_cmd *cmd;
int add_cdb_len;
cmd = vha->hw->tgt.tgt_ops->get_cmd(sess);
if (!cmd)
return NULL;
cmd->cmd_type = TYPE_TGT_CMD;
memcpy_atio(&cmd->atio, atio);
INIT_LIST_HEAD(&cmd->sess_cmd_list);
cmd->state = QLA_TGT_STATE_NEW;
cmd->tgt = vha->vha_tgt.qla_tgt;
qlt_incr_num_pend_cmds(vha);
cmd->vha = vha;
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;
cmd->edif = sess->edif.enable;
cmd->cdb = &cmd->atio.u.isp24.fcp_cmnd.cdb[0];
cmd->cdb_len = 16;
add_cdb_len = atio->u.isp24.fcp_cmnd.add_cdb_len;
if (unlikely(add_cdb_len != 0)) {
int cdb_len = 16 + add_cdb_len * 4;
u8 *cdb;
cdb = kmalloc(cdb_len, GFP_ATOMIC);
if (unlikely(!cdb)) {
vha->hw->tgt.tgt_ops->free_cmd(cmd);
return NULL;
}
memcpy(cdb, atio->u.isp24.fcp_cmnd.cdb, cdb_len);
cmd->cdb = cdb;
cmd->cdb_len = cdb_len;
}
return cmd;
}
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;
if (sess->deleted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
"New command while old session %p is being deleted\n",
sess);
return -EFAULT;
}
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(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;
}
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);
fallthrough;
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:
break;
}
INIT_WORK(&mcmd->work, qlt_do_tmr_work);
queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
&mcmd->work);
return 0;
}
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);
}
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;
}
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;
}
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;
}
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);
qlt_schedule_sess_for_deletion(other_sess);
} else {
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;
}
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);
qlt_schedule_sess_for_deletion(other_sess);
}
}
return sess;
}
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->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);
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;
}
if (vha->hw->flags.edif_enabled &&
!(vha->e_dbell.db_flags & EDB_ACTIVE) &&
iocb->u.isp24.status_subcode == ELS_PLOGI &&
!(le16_to_cpu(iocb->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d Term INOT due to app not available lid=%d, NportID %06X ",
__func__, __LINE__, loop_id, port_id.b24);
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
}
if (vha->hw->flags.edif_enabled) {
if (DBELL_INACTIVE(vha)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d Term INOT due to app not started lid=%d, NportID %06X ",
__func__, __LINE__, loop_id, port_id.b24);
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
} else if (iocb->u.isp24.status_subcode == ELS_PLOGI &&
!(le16_to_cpu(iocb->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d Term INOT due to unsecure lid=%d, NportID %06X ",
__func__, __LINE__, loop_id, port_id.b24);
qlt_send_term_imm_notif(vha, iocb, 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, 0);
else
qla24xx_post_newsess_work(vha, &port_id,
iocb->u.isp24.port_name, NULL,
pla, 0);
goto out;
}
if (sess->disc_state == DSC_UPD_FCPORT) {
u16 sec;
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++;
sess->loop_id = loop_id;
if (iocb->u.isp24.status_subcode == ELS_PLOGI) {
if (N2N_TOPO(vha->hw) && fcport_is_bigger(sess))
vha->d_id = sess->d_id;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC - send port online\n",
__func__, sess->port_name);
qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
sess->d_id.b24);
}
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:
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;
}
static bool qlt_has_sler_fw_bug(struct qla_hw_data *ha)
{
bool has_sler_fw_bug = false;
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
if (ha->fw_major_version == 9 &&
ha->fw_minor_version >= 5 &&
ha->fw_minor_version <= 8)
has_sler_fw_bug = true;
}
return has_sler_fw_bug;
}
static bool qlt_srr_is_chip_reset(struct scsi_qla_host *vha,
struct qla_qpair *qpair, struct qla_tgt_srr *srr)
{
if (!vha->flags.online ||
!qpair->fw_started ||
srr->reset_count != qpair->chip_reset) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1100d,
"qla_target(%d): chip reset; discarding IMM SRR\n",
vha->vp_idx);
return true;
}
return false;
}
static struct qla_tgt_cmd *qlt_srr_to_cmd(struct scsi_qla_host *vha,
const struct imm_ntfy_from_isp *iocb)
{
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess;
struct qla_tgt_cmd *cmd;
uint32_t tag = le32_to_cpu(iocb->u.isp24.exchange_address);
uint16_t loop_id;
be_id_t s_id;
unsigned long flags;
if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11009,
"qla_target(%d): IMM SRR with unknown exchange address; reject SRR\n",
vha->vp_idx);
return NULL;
}
loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
s_id.domain = iocb->u.isp24.port_id[2];
s_id.area = iocb->u.isp24.port_id[1];
s_id.al_pa = iocb->u.isp24.port_id[0];
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
if (!sess)
sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
if (!sess || sess->deleted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1100a,
"qla_target(%d): could not find session for IMM SRR; reject SRR\n",
vha->vp_idx);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return NULL;
}
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess, tag);
if (!cmd) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1100b,
"qla_target(%d): could not find cmd for IMM SRR; reject SRR\n",
vha->vp_idx);
} else {
u16 srr_ox_id = le16_to_cpu(iocb->u.isp24.srr_ox_id);
u16 cmd_ox_id = be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id);
if (srr_ox_id != cmd_ox_id) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1100c,
"qla_target(%d): tag %lld: IMM SRR: srr_ox_id[%04x] != cmd_ox_id[%04x]; reject SRR\n",
vha->vp_idx, cmd->se_cmd.tag,
srr_ox_id, cmd_ox_id);
cmd = NULL;
}
}
return cmd;
}
static void qlt_handle_srr_imm(struct scsi_qla_host *vha,
struct qla_tgt_srr *srr)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_hw_data *ha = vha->hw;
struct qla_qpair *qpair;
struct qla_tgt_cmd *cmd;
uint8_t srr_explain = NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL;
if (srr->aborted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11004,
"qla_target(%d): IMM SRR: terminating SRR for aborted cmd\n",
vha->vp_idx);
spin_lock_irq(&ha->hardware_lock);
if (!qlt_srr_is_chip_reset(vha, ha->base_qpair, srr))
qlt_send_term_imm_notif(vha, &srr->imm_ntfy, 1);
spin_unlock_irq(&ha->hardware_lock);
kfree(srr);
return;
}
if (srr->reject) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11005,
"qla_target(%d): IMM SRR: rejecting SRR for unknown cmd\n",
vha->vp_idx);
goto out_reject;
}
cmd = qlt_srr_to_cmd(vha, &srr->imm_ntfy);
if (cmd == NULL) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11005,
"qla_target(%d): IMM SRR: rejecting SRR for unknown cmd\n",
vha->vp_idx);
srr_explain = NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_INVALID_OX_ID_RX_ID;
goto out_reject;
}
if (ha->tgt.tgt_ops->get_cmd_ref(cmd)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11038,
"qla_target(%d): IMM SRR: unable to get cmd ref; rejecting SRR\n",
vha->vp_idx);
cmd = NULL;
goto out_reject;
}
qpair = cmd->qpair;
spin_lock_irq(qpair->qp_lock_ptr);
if (cmd->reset_count != srr->reset_count) {
srr->reset_count = qpair->chip_reset ^ 1;
}
if (qlt_srr_is_chip_reset(vha, qpair, srr)) {
spin_unlock_irq(qpair->qp_lock_ptr);
ha->tgt.tgt_ops->put_cmd_ref(cmd);
kfree(srr);
return;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11001,
"qla_target(%d): tag %lld, op %x: received IMM SRR\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->cdb ? cmd->cdb[0] : 0);
cmd->trc_flags |= TRC_SRR_IMM;
if (cmd->srr != NULL) {
if (cmd->srr->imm_ntfy_recvd) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11006,
"qla_target(%d): tag %lld: received multiple IMM SRR; reject SRR\n",
vha->vp_idx, cmd->se_cmd.tag);
spin_unlock_irq(qpair->qp_lock_ptr);
ha->tgt.tgt_ops->put_cmd_ref(cmd);
goto out_reject;
}
WARN_ON(!cmd->srr->ctio_recvd);
memcpy(&cmd->srr->imm_ntfy, &srr->imm_ntfy,
sizeof(srr->imm_ntfy));
kfree(srr);
srr = cmd->srr;
srr->imm_ntfy_recvd = true;
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11002,
"qla_target(%d): tag %lld: schedule SRR work\n",
vha->vp_idx, cmd->se_cmd.tag);
spin_lock(&tgt->srr_lock);
list_add_tail(&srr->srr_list_entry, &tgt->srr_list);
spin_unlock(&tgt->srr_lock);
spin_unlock_irq(qpair->qp_lock_ptr);
return;
}
if (cmd->sent_term_exchg) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11007,
"qla_target(%d): tag %lld: IMM SRR: cmd already aborted\n",
vha->vp_idx, cmd->se_cmd.tag);
spin_unlock_irq(qpair->qp_lock_ptr);
spin_lock_irq(&ha->hardware_lock);
if (!qlt_srr_is_chip_reset(vha, ha->base_qpair, srr))
qlt_send_term_imm_notif(vha, &srr->imm_ntfy, 1);
spin_unlock_irq(&ha->hardware_lock);
kfree(srr);
ha->tgt.tgt_ops->put_cmd_ref(cmd);
return;
}
if (!cmd->cmd_sent_to_fw) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11008,
"qla_target(%d): tag %lld: IMM SRR but !cmd_sent_to_fw (state %d); reject SRR\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->state);
spin_unlock_irq(qpair->qp_lock_ptr);
ha->tgt.tgt_ops->put_cmd_ref(cmd);
goto out_reject;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11003,
"qla_target(%d): tag %lld: wait for CTIO SRR (state %d)\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->state);
srr->cmd = cmd;
cmd->srr = srr;
spin_unlock_irq(qpair->qp_lock_ptr);
ha->tgt.tgt_ops->put_cmd_ref(cmd);
return;
out_reject:
qpair = vha->hw->base_qpair;
spin_lock_irq(qpair->qp_lock_ptr);
if (!qlt_srr_is_chip_reset(vha, qpair, srr))
qlt_send_notify_ack(qpair, &srr->imm_ntfy, 0, 0, 0,
NOTIFY_ACK_SRR_FLAGS_REJECT,
NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM,
srr_explain);
spin_unlock_irq(qpair->qp_lock_ptr);
kfree(srr);
}
static void qlt_prepare_srr_imm(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_tgt_srr *srr;
ql_log(ql_log_warn, vha, 0x11000, "qla_target(%d): received IMM SRR\n",
vha->vp_idx);
srr = kzalloc_obj(*srr, GFP_ATOMIC);
if (!srr)
goto out_reject;
memcpy(&srr->imm_ntfy, iocb, sizeof(srr->imm_ntfy));
srr->imm_ntfy_recvd = true;
srr->reset_count = vha->hw->base_qpair->chip_reset;
spin_lock(&tgt->srr_lock);
list_add_tail(&srr->srr_list_entry, &tgt->srr_list);
queue_work(qla_tgt_wq, &tgt->srr_work);
spin_unlock(&tgt->srr_lock);
return;
out_reject:
qlt_send_notify_ack(vha->hw->base_qpair, iocb, 0, 0, 0,
NOTIFY_ACK_SRR_FLAGS_REJECT,
NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM,
NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL);
}
static int qlt_restore_orig_sg(struct qla_tgt_cmd *cmd)
{
struct scsi_qla_host *vha = cmd->vha;
struct se_cmd *se_cmd = &cmd->se_cmd;
WARN_ON(cmd->sg_mapped);
if (cmd->offset == 0) {
return 0;
}
if (se_cmd->t_data_sg == NULL ||
se_cmd->t_data_nents == 0 ||
se_cmd->data_length == 0) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1102c,
"qla_target(%d): tag %lld: cannot restore original cmd buffer; keep modified buffer at offset %d\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->offset);
return -ENOENT;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1102d,
"qla_target(%d): tag %lld: restore original cmd buffer: offset %d -> 0\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->offset);
if (cmd->free_sg) {
cmd->free_sg = 0;
qlt_free_sg(cmd);
}
cmd->offset = 0;
cmd->sg = se_cmd->t_data_sg;
cmd->sg_cnt = se_cmd->t_data_nents;
cmd->bufflen = se_cmd->data_length;
return 0;
}
static int qlt_set_data_offset(struct qla_tgt_cmd *cmd, uint32_t offset)
{
struct scsi_qla_host *vha = cmd->vha;
struct scatterlist *sg_srr_start = NULL, *sg;
uint32_t first_offset = offset;
int sg_srr_cnt, i;
int bufflen = 0;
WARN_ON(cmd->sg_mapped);
ql_dbg(ql_dbg_tgt, vha, 0x11020,
"qla_target(%d): tag %lld: %s: sg %p sg_cnt %d dir %d cmd->offset %d cmd->bufflen %d add offset %u\n",
vha->vp_idx, cmd->se_cmd.tag, __func__, cmd->sg,
cmd->sg_cnt, cmd->dma_data_direction, cmd->offset, cmd->bufflen,
offset);
if (cmd->se_cmd.prot_op != TARGET_PROT_NORMAL) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11021,
"qla_target(%d): tag %lld: %s: SRR with protection information at nonzero offset not implemented\n",
vha->vp_idx, cmd->se_cmd.tag, __func__);
return -EINVAL;
}
if (!cmd->sg || !cmd->sg_cnt) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11022,
"qla_target(%d): tag %lld: %s: Missing cmd->sg or zero cmd->sg_cnt\n",
vha->vp_idx, cmd->se_cmd.tag, __func__);
return -EINVAL;
}
for_each_sg(cmd->sg, sg, cmd->sg_cnt, i) {
ql_dbg(ql_dbg_tgt, vha, 0x11023,
"sg[%d]: %p page: %p, length: %d, offset: %d\n",
i, sg, sg_page(sg), sg->length, sg->offset);
if (first_offset < sg->length) {
sg_srr_start = sg;
break;
}
first_offset -= sg->length;
}
if (!sg_srr_start) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11024,
"qla_target(%d): tag %lld: Unable to locate sg_srr_start for offset: %u\n",
vha->vp_idx, cmd->se_cmd.tag, offset);
return -EINVAL;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11025,
"qla_target(%d): tag %lld: prepare SRR sgl at sg index %d of %d byte offset %u of %u\n",
vha->vp_idx, cmd->se_cmd.tag, i, cmd->sg_cnt,
first_offset, sg_srr_start->length);
sg_srr_cnt = cmd->sg_cnt - i;
if (first_offset == 0 && !cmd->free_sg) {
ql_dbg(ql_dbg_tgt, vha, 0x11026, "point directly to old sgl\n");
cmd->sg = sg_srr_start;
} else {
int n_alloc_sg = min(sg_srr_cnt, 2);
struct scatterlist *sg_srr =
kmalloc_objs(*sg_srr, n_alloc_sg, GFP_ATOMIC);
if (!sg_srr) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11027,
"qla_target(%d): tag %lld: Unable to allocate SRR scatterlist\n",
vha->vp_idx, cmd->se_cmd.tag);
return -ENOMEM;
}
sg_init_table(sg_srr, n_alloc_sg);
sg_set_page(&sg_srr[0], sg_page(sg_srr_start),
sg_srr_start->length - first_offset,
sg_srr_start->offset + first_offset);
if (sg_srr_cnt == 1) {
ql_dbg(ql_dbg_tgt, vha, 0x11028,
"single-element array\n");
} else if (sg_srr_cnt == 2) {
ql_dbg(ql_dbg_tgt, vha, 0x11029,
"complete two-element array\n");
sg = sg_next(sg_srr_start);
sg_set_page(&sg_srr[1], sg_page(sg), sg->length,
sg->offset);
} else {
ql_dbg(ql_dbg_tgt, vha, 0x1102a,
"chain to original scatterlist\n");
sg = sg_next(sg_srr_start);
sg_chain(sg_srr, 2, sg);
}
if (cmd->free_sg)
qlt_free_sg(cmd);
cmd->sg = sg_srr;
cmd->free_sg = 1;
}
cmd->sg_cnt = sg_srr_cnt;
cmd->offset += offset;
cmd->bufflen -= offset;
for_each_sg(cmd->sg, sg, cmd->sg_cnt, i) {
bufflen += sg->length;
}
if (bufflen != cmd->bufflen) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1102b,
"qla_target(%d): tag %lld: %s: bad sgl length: expected %d got %d\n",
vha->vp_idx, cmd->se_cmd.tag, __func__, cmd->bufflen, bufflen);
return -EINVAL;
}
return 0;
}
static inline int qlt_srr_adjust_data(struct qla_tgt_cmd *cmd,
uint32_t srr_rel_offs, int *xmit_type)
{
struct scsi_qla_host *vha = cmd->vha;
int res = 0, rel_offs;
if (srr_rel_offs < cmd->offset ||
srr_rel_offs > cmd->offset + cmd->bufflen) {
*xmit_type = 0;
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1101e,
"qla_target(%d): tag %lld: srr_rel_offs %u outside accepted range %u - %u\n",
vha->vp_idx, cmd->se_cmd.tag, srr_rel_offs,
cmd->offset, cmd->offset + cmd->bufflen);
return -EINVAL;
}
rel_offs = srr_rel_offs - cmd->offset;
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1101f,
"qla_target(%d): tag %lld: current buffer [%u - %u); srr_rel_offs=%d, rel_offs=%d\n",
vha->vp_idx, cmd->se_cmd.tag, cmd->offset,
cmd->offset + cmd->bufflen, srr_rel_offs, rel_offs);
*xmit_type = QLA_TGT_XMIT_ALL;
if (rel_offs == cmd->bufflen)
*xmit_type = QLA_TGT_XMIT_STATUS;
else if (rel_offs > 0)
res = qlt_set_data_offset(cmd, rel_offs);
return res;
}
static void qlt_handle_srr(struct scsi_qla_host *vha, struct qla_tgt_srr *srr)
{
struct qla_tgt_cmd *cmd = srr->cmd;
struct se_cmd *se_cmd = &cmd->se_cmd;
struct qla_qpair *qpair = cmd->qpair;
struct qla_hw_data *ha = vha->hw;
uint8_t op = cmd->cdb ? cmd->cdb[0] : 0;
uint32_t srr_rel_offs = le32_to_cpu(srr->imm_ntfy.u.isp24.srr_rel_offs);
uint16_t srr_ui = le16_to_cpu(srr->imm_ntfy.u.isp24.srr_ui);
int xmit_type = 0;
bool xmit_response = false;
bool rdy_to_xfer = false;
bool did_timeout;
bool send_term_exch = false;
spin_lock_irq(qpair->qp_lock_ptr);
WARN_ON(cmd->cmd_sent_to_fw);
cmd->srr = NULL;
if (qlt_srr_is_chip_reset(vha, qpair, srr))
goto out_advance_cmd;
if (cmd->sent_term_exchg || cmd->sess->deleted || srr->aborted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11010,
"qla_target(%d): tag %lld: IMM SRR: cmd already aborted\n",
vha->vp_idx, cmd->se_cmd.tag);
spin_unlock_irq(qpair->qp_lock_ptr);
spin_lock_irq(&ha->hardware_lock);
if (!qlt_srr_is_chip_reset(vha, ha->base_qpair, srr))
qlt_send_term_imm_notif(vha, &srr->imm_ntfy, 1);
spin_unlock_irq(&ha->hardware_lock);
send_term_exch = true;
spin_lock_irq(qpair->qp_lock_ptr);
goto out_advance_cmd;
}
if (srr->reject)
goto out_reject;
did_timeout = time_is_before_jiffies64((cmd->jiffies_at_hw_st_entry ? :
cmd->jiffies_at_alloc) + 30 * HZ);
qlt_restore_orig_sg(cmd);
switch (srr_ui) {
case SRR_IU_STATUS:
if (cmd->state != QLA_TGT_STATE_PROCESSED) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11011,
"qla_target(%d): tag %lld, op %x: reject SRR_IU_STATUS due to unexpected state %d\n",
vha->vp_idx, se_cmd->tag, op,
cmd->state);
goto out_reject;
}
if (did_timeout) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11033,
"qla_target(%d): tag %lld, op %x: reject SRR_IU_STATUS due to timeout\n",
vha->vp_idx, se_cmd->tag, op);
goto out_reject;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11012,
"qla_target(%d): tag %lld, op %x: accept SRR_IU_STATUS and retransmit scsi_status=%x\n",
vha->vp_idx, se_cmd->tag, op,
se_cmd->scsi_status);
xmit_type = QLA_TGT_XMIT_STATUS;
xmit_response = true;
cmd->trc_flags |= TRC_SRR_RSP;
break;
case SRR_IU_DATA_IN:
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11013,
"qla_target(%d): tag %lld, op %x: process SRR_IU_DATA_IN: bufflen=%d, sg_cnt=%d, offset=%d, srr_offset=%d, scsi_status=%x\n",
vha->vp_idx, se_cmd->tag, op, cmd->bufflen,
cmd->sg_cnt, cmd->offset, srr_rel_offs,
se_cmd->scsi_status);
if (cmd->state != QLA_TGT_STATE_PROCESSED) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11014,
"qla_target(%d): tag %lld: reject SRR_IU_DATA_IN due to unexpected state %d\n",
vha->vp_idx, se_cmd->tag, cmd->state);
goto out_reject;
}
if (!qlt_has_data(cmd)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11015,
"qla_target(%d): tag %lld: reject SRR_IU_DATA_IN because cmd has no data to send\n",
vha->vp_idx, se_cmd->tag);
goto out_reject;
}
if (!cmd->sg || !cmd->sg_cnt) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11016,
"qla_target(%d): tag %lld: reject SRR_IU_DATA_IN because buffer is missing\n",
vha->vp_idx, se_cmd->tag);
goto out_reject;
}
if (did_timeout) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11034,
"qla_target(%d): tag %lld, op %x: reject SRR_IU_DATA_IN due to timeout\n",
vha->vp_idx, se_cmd->tag, op);
goto out_reject;
}
if (qlt_srr_adjust_data(cmd, srr_rel_offs, &xmit_type) != 0)
goto out_reject;
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11017,
"qla_target(%d): tag %lld: accept SRR_IU_DATA_IN and retransmit data: bufflen=%d, offset=%d\n",
vha->vp_idx, se_cmd->tag, cmd->bufflen,
cmd->offset);
xmit_response = true;
cmd->trc_flags |= TRC_SRR_RSP;
break;
case SRR_IU_DATA_OUT:
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11018,
"qla_target(%d): tag %lld, op %x: process SRR_IU_DATA_OUT: bufflen=%d, sg_cnt=%d, offset=%d, srr_offset=%d\n",
vha->vp_idx, se_cmd->tag, op, cmd->bufflen,
cmd->sg_cnt, cmd->offset, srr_rel_offs);
if (cmd->state != QLA_TGT_STATE_NEED_DATA) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11019,
"qla_target(%d): tag %lld: reject SRR_IU_DATA_OUT due to unexpected state %d\n",
vha->vp_idx, se_cmd->tag, cmd->state);
goto out_reject;
}
if (!qlt_has_data(cmd) || !cmd->sg || !cmd->sg_cnt) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1101a,
"qla_target(%d): tag %lld: reject SRR_IU_DATA_OUT because buffer is missing\n",
vha->vp_idx, se_cmd->tag);
goto out_reject;
}
if (did_timeout) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11035,
"qla_target(%d): tag %lld, op %x: reject SRR_IU_DATA_OUT due to timeout\n",
vha->vp_idx, se_cmd->tag, op);
goto out_reject;
}
if (qlt_srr_adjust_data(cmd, srr_rel_offs, &xmit_type) != 0)
goto out_reject;
if (!(xmit_type & QLA_TGT_XMIT_DATA)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1101b,
"qla_target(%d): tag %lld: reject SRR_IU_DATA_OUT: bad offset\n",
vha->vp_idx, se_cmd->tag);
goto out_reject;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1101c,
"qla_target(%d): tag %lld: accept SRR_IU_DATA_OUT and receive data again: bufflen=%d, offset=%d\n",
vha->vp_idx, se_cmd->tag, cmd->bufflen,
cmd->offset);
cmd->trc_flags |= TRC_SRR_XRDY;
rdy_to_xfer = true;
break;
default:
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1101d,
"qla_target(%d): tag %lld, op %x: reject unknown srr_ui value 0x%x: state=%d, bufflen=%d, offset=%d, srr_offset=%d\n",
vha->vp_idx, se_cmd->tag, op, srr_ui, cmd->state,
cmd->bufflen, cmd->offset, srr_rel_offs);
goto out_reject;
}
qlt_send_notify_ack(qpair, &srr->imm_ntfy, 0, 0, 0,
NOTIFY_ACK_SRR_FLAGS_ACCEPT, 0, 0);
spin_unlock_irq(qpair->qp_lock_ptr);
if (xmit_response) {
if (qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status)) {
send_term_exch = true;
spin_lock_irq(qpair->qp_lock_ptr);
goto out_advance_cmd;
}
} else if (rdy_to_xfer) {
if (qlt_rdy_to_xfer(cmd)) {
send_term_exch = true;
spin_lock_irq(qpair->qp_lock_ptr);
goto out_advance_cmd;
}
}
return;
out_reject:
qlt_send_notify_ack(qpair, &srr->imm_ntfy, 0, 0, 0,
NOTIFY_ACK_SRR_FLAGS_REJECT,
NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM,
NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL);
out_advance_cmd:
if (!cmd->sent_term_exchg &&
(send_term_exch || cmd->state != QLA_TGT_STATE_NEED_DATA) &&
!qlt_srr_is_chip_reset(vha, qpair, srr)) {
cmd->trc_flags |= TRC_SRR_TERM;
qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1);
}
if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
cmd->srr_failed = 1;
cmd->write_data_transferred = 0;
cmd->state = QLA_TGT_STATE_DATA_IN;
cmd->jiffies_at_hw_st_entry = 0;
vha->hw->tgt.tgt_ops->handle_data(cmd);
} else {
vha->hw->tgt.tgt_ops->free_cmd(cmd);
}
spin_unlock_irq(qpair->qp_lock_ptr);
}
static void qlt_handle_srr_work(struct work_struct *work)
{
struct qla_tgt *tgt = container_of(work, struct qla_tgt, srr_work);
struct scsi_qla_host *vha = tgt->vha;
ql_dbg(ql_dbg_tgt_mgt, vha, 0x11032,
"qla_target(%d): Entering SRR work\n", vha->vp_idx);
for (;;) {
struct qla_tgt_srr *srr;
spin_lock_irq(&tgt->srr_lock);
srr = list_first_entry_or_null(&tgt->srr_list, typeof(*srr),
srr_list_entry);
if (!srr) {
spin_unlock_irq(&tgt->srr_lock);
break;
}
list_del(&srr->srr_list_entry);
spin_unlock_irq(&tgt->srr_lock);
if (!srr->cmd) {
qlt_handle_srr_imm(vha, srr);
} else {
qlt_handle_srr(vha, srr);
vha->hw->tgt.tgt_ops->put_cmd_ref(srr->cmd);
kfree(srr);
}
}
}
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);
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 (vha->hw->flags.edif_enabled && sess &&
(!(sess->flags & FCF_FCSP_DEVICE) ||
!sess->edif.authok)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC Term PRLI due to unauthorize PRLI\n",
__func__, __LINE__, iocb->u.isp24.port_name);
qlt_send_term_imm_notif(vha, iocb, 1);
break;
}
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;
if (vha->hw->flags.edif_enabled && sess &&
(!(sess->flags & FCF_FCSP_DEVICE) ||
!sess->edif.authok)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC Term PRLI due to unauthorize prli\n",
__func__, __LINE__, iocb->u.isp24.port_name);
qlt_send_term_imm_notif(vha, iocb, 1);
break;
}
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);
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;
}
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;
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;
}
fallthrough;
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) {
BUG_ON(!sess);
res = 0;
} else {
if (sess) {
qlt_schedule_sess_for_deletion(sess);
res = 0;
}
}
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;
break;
}
case ELS_FLOGI:
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;
}
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;
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;
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;
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;
break;
case IMM_NTFY_GLBL_LOGO:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
"qla_target(%d): Link failure detected\n",
vha->vp_idx);
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;
case IMM_NTFY_SRR:
qlt_prepare_srr_imm(vha, iocb);
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);
}
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);
return 0;
}
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 = cpu_to_le16(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);
ctio24->u.status1.ox_id =
cpu_to_le16(be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
ctio24->u.status1.scsi_status = cpu_to_le16(status);
ctio24->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
if (ctio24->u.status1.residual != 0)
ctio24->u.status1.scsi_status |= cpu_to_le16(SS_RESIDUAL_UNDER);
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
return 0;
}
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 qla_tgt_cmd *cmd;
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;
cmd = ha->tgt.tgt_ops->get_cmd(sess);
if (!cmd) {
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;
}
qlt_incr_num_pend_cmds(vha);
INIT_LIST_HEAD(&cmd->cmd_list);
memcpy_atio(&cmd->atio, 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->cdb = &cmd->atio.u.isp24.fcp_cmnd.cdb[0];
cmd->cdb_len = 16;
if (qfull) {
cmd->q_full = 1;
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);
}
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;
}
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;
}
tgt->atio_irq_cmd_count++;
switch (atio->u.raw.entry_type) {
case ATIO_TYPE7:
if (unlikely(atio->u.isp24.exchange_addr ==
cpu_to_le32(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);
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--;
}
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;
if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort &&
qpair->retry_term_jiff == jiffies) {
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);
else
qla2xxx_dump_fw(vha);
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, TYPE_TGT_TMCMD, 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 (le32_to_cpu(entry->error_subcode1) == 0x1E &&
le32_to_cpu(entry->error_subcode2) == 0) {
if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) {
qlt_free_ul_mcmd(ha, 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);
qlt_free_ul_mcmd(ha, mcmd);
}
} else if (mcmd) {
qlt_free_ul_mcmd(ha, mcmd);
}
}
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;
}
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);
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 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;
}
}
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;
switch (code) {
case MBA_RESET:
case MBA_SYSTEM_ERR:
case MBA_REQ_TRANSFER_ERR:
case MBA_RSP_TRANSFER_ERR:
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:
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,
mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
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;
}
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,
mailbox[0], mailbox[1], mailbox[2], 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,
mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
if (mailbox[3] == 1) {
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,
mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
login_code = 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;
}
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) {
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);
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_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);
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;
default:
BUG_ON(1);
break;
}
spin_lock_irqsave(&tgt->sess_work_lock, flags);
kfree(prm);
}
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
}
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_obj(struct qla_tgt);
if (!tgt) {
ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
"Unable to allocate struct qla_tgt\n");
return -ENOMEM;
}
tgt->qphints = kzalloc_objs(struct qla_qpair_hint, ha->max_qpairs + 1);
if (!tgt->qphints) {
kfree(tgt);
ql_log(ql_log_warn, base_vha, 0x0197,
"Unable to allocate qpair hints.\n");
return -ENOMEM;
}
qla2xxx_driver_template.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);
spin_lock_init(&tgt->sess_work_lock);
INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
INIT_LIST_HEAD(&tgt->sess_works_list);
spin_lock_init(&tgt->srr_lock);
INIT_LIST_HEAD(&tgt->srr_list);
INIT_WORK(&tgt->srr_work, qlt_handle_srr_work);
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);
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;
}
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;
}
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 qla_remove_hostmap(struct qla_hw_data *ha)
{
struct scsi_qla_host *node;
u32 key = 0;
btree_for_each_safe32(&ha->host_map, key, node)
btree_remove32(&ha->host_map, key);
btree_destroy32(&ha->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);
}
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);
void qlt_lport_deregister(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct Scsi_Host *sh = vha->host;
vha->vha_tgt.target_lport_ptr = NULL;
ha->tgt.tgt_ops = NULL;
scsi_host_put(sh);
}
EXPORT_SYMBOL(qlt_lport_deregister);
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;
}
}
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;
}
}
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);
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,
"adapter is offline\n");
}
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);
INIT_LIST_HEAD(&vha->unknown_atio_list);
INIT_DELAYED_WORK(&vha->unknown_atio_work, qlt_unknown_atio_work_fn);
qlt_clear_mode(vha);
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;
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;
}
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 = cpu_to_le32(ATIO_PROCESSED);
pkt++;
}
}
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))) {
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),
pkt->u.isp24.exchange_addr, pkt);
adjust_corrupted_atio(pkt);
qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
ha_locked);
} 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 = cpu_to_le32(ATIO_PROCESSED);
pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
}
wmb();
}
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)) {
icb->msix_atio = cpu_to_le16(msix->entry);
icb->firmware_options_2 &= cpu_to_le32(~BIT_26);
ql_dbg(ql_dbg_init, vha, 0xf072,
"Registering ICB vector 0x%x for atio que.\n",
msix->entry);
}
} else {
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
icb->msix_atio = 0;
icb->firmware_options_2 |= cpu_to_le32(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) {
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
nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
nv->firmware_options_1 |= cpu_to_le32(BIT_4);
if (qla_tgt_mode_enabled(vha))
nv->firmware_options_1 |= cpu_to_le32(BIT_5);
nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
if (ql2xtgt_tape_enable)
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
else
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
nv->host_p &= cpu_to_le32(~BIT_10);
nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
nv->firmware_options_2 |= cpu_to_le32(BIT_14);
if (IS_QLA25XX(ha)) {
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) {
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
nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
nv->firmware_options_1 |= cpu_to_le32(BIT_4);
if (qla_tgt_mode_enabled(vha))
nv->firmware_options_1 |= cpu_to_le32(BIT_5);
nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
if (ql2xtgt_tape_enable)
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
else
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
nv->host_p &= cpu_to_le32(~BIT_10);
nv->firmware_options_2 |= cpu_to_le32(BIT_14);
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_config_nvram_with_fw_version(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
if (!QLA_TGT_MODE_ENABLED())
return;
if (ql2xtgt_tape_enable && qlt_has_sler_fw_bug(ha)) {
ql_log(ql_log_warn, vha, 0x11036,
"WARNING: ignoring ql2xtgt_tape_enable due to buggy HBA firmware; please upgrade FW\n");
if (ha->isp_ops->nvram_config == qla81xx_nvram_config) {
struct init_cb_81xx *icb =
(struct init_cb_81xx *)ha->init_cb;
icb->firmware_options_2 &= cpu_to_le32(~BIT_12);
} else {
struct init_cb_24xx *icb =
(struct init_cb_24xx *)ha->init_cb;
icb->firmware_options_2 &= cpu_to_le32(~BIT_12);
}
}
}
void
qlt_modify_vp_config(struct scsi_qla_host *vha,
struct vp_config_entry_24xx *vpmod)
{
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
vpmod->options_idx1 &= ~BIT_5;
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)
{
mutex_init(&base_vha->vha_tgt.tgt_mutex);
if (!QLA_TGT_MODE_ENABLED())
return;
if (ha->mqenable || 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_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);
qla_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_obj(*op, GFP_ATOMIC);
if (!op) {
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.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) {
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;
}
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", WQ_PERCPU, 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 (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);
}
