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scsi: qla2xxx: move fields from qla_hw_data to qla_qpair 

- Move chip_reset, enable_class_2 fields from qla_hw_data to qla_qpair
  to reduce cache thrash for target MQ.
- Optimizations to reduce unnecessary memory load for good path io.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran 2017-06-13 20:47:22 -07:00 committed by Martin K. Petersen
parent 4b60c82736
commit 7c3f8fd10b
6 changed files with 73 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/qla2xxx/qla_attr.c
View File

@ -2289,7 +2289,7 @@ qla2x00_init_host_attr(scsi_qla_host_t *vha)
fc_host_dev_loss_tmo(vha->host) = ha->port_down_retry_count;
fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name);
fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name);
fc_host_supported_classes(vha->host) = ha->tgt.enable_class_2 ?
fc_host_supported_classes(vha->host) = ha->base_qpair->enable_class_2 ?
(FC_COS_CLASS2|FC_COS_CLASS3) : FC_COS_CLASS3;
fc_host_max_npiv_vports(vha->host) = ha->max_npiv_vports;
fc_host_npiv_vports_inuse(vha->host) = ha->cur_vport_count;

25
drivers/scsi/qla2xxx/qla_def.h
View File

@ -3252,6 +3252,7 @@ struct qla_qpair {
*/
spinlock_t *qp_lock_ptr;
struct scsi_qla_host *vha;
u32 chip_reset;
/* distill these fields down to 'online=0/1'
* ha->flags.eeh_busy
@ -3263,6 +3264,8 @@ struct qla_qpair {
uint32_t difdix_supported:1;
uint32_t delete_in_progress:1;
uint32_t fw_started:1;
uint32_t enable_class_2:1;
uint32_t enable_explicit_conf:1;
uint16_t id; /* qp number used with FW */
uint16_t vp_idx; /* vport ID */
@ -3296,8 +3299,6 @@ struct scsi_qlt_host {
struct qlt_hw_data {
/* Protected by hw lock */
uint32_t enable_class_2:1;
uint32_t enable_explicit_conf:1;
uint32_t node_name_set:1;
dma_addr_t atio_dma; /* Physical address. */
@ -3954,7 +3955,6 @@ struct qla_hw_data {
struct work_struct board_disable;
struct mr_data_fx00 mr;
uint32_t chip_reset;
struct qlt_hw_data tgt;
int allow_cna_fw_dump;
@ -4247,6 +4247,25 @@ struct qla2_sgx {
#define QLA_QPAIR_MARK_NOT_BUSY(__qpair) \
atomic_dec(&__qpair->ref_count); \
#define QLA_ENA_CONF(_ha) {\
int i;\
_ha->base_qpair->enable_explicit_conf = 1; \
for (i = 0; i < _ha->max_qpairs; i++) { \
if (_ha->queue_pair_map[i]) \
_ha->queue_pair_map[i]->enable_explicit_conf = 1; \
} \
}
#define QLA_DIS_CONF(_ha) {\
int i;\
_ha->base_qpair->enable_explicit_conf = 0; \
for (i = 0; i < _ha->max_qpairs; i++) { \
if (_ha->queue_pair_map[i]) \
_ha->queue_pair_map[i]->enable_explicit_conf = 0; \
} \
}
/*
* qla2x00 local function return status codes
*/

14
drivers/scsi/qla2xxx/qla_init.c
View File

@ -1322,7 +1322,7 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
ql_dbg(ql_dbg_disc, vha, 0x20ea,
"%s %d %8phC post gpdb\n",
__func__, __LINE__, ea->fcport->port_name);
ea->fcport->chip_reset = vha->hw->chip_reset;
ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
ea->fcport->logout_on_delete = 1;
qla24xx_post_gpdb_work(vha, ea->fcport, 0);
break;
@ -5524,6 +5524,7 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
struct scsi_qla_host *vp;
unsigned long flags;
fc_port_t *fcport;
u16 i;
/* For ISP82XX, driver waits for completion of the commands.
* online flag should be set.
@ -5549,7 +5550,12 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
ha->current_topology = 0;
ha->flags.fw_started = 0;
ha->flags.fw_init_done = 0;
ha->chip_reset++;
ha->base_qpair->chip_reset++;
for (i = 0; i < ha->max_qpairs; i++) {
if (ha->queue_pair_map[i])
ha->queue_pair_map[i]->chip_reset =
ha->base_qpair->chip_reset;
}
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
@ -7624,6 +7630,10 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
qpair->id = qpair_id;
qpair->vp_idx = vp_idx;
INIT_LIST_HEAD(&qpair->hints_list);
qpair->chip_reset = ha->base_qpair->chip_reset;
qpair->enable_class_2 = ha->base_qpair->enable_class_2;
qpair->enable_explicit_conf =
ha->base_qpair->enable_explicit_conf;
for (i = 0; i < ha->msix_count; i++) {
msix = &ha->msix_entries[i];

2
drivers/scsi/qla2xxx/qla_os.c
View File

@ -387,6 +387,7 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
/* init qpair to this cpu. Will adjust at run time. */
ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
INIT_LIST_HEAD(&ha->base_qpair->hints_list);
ha->base_qpair->enable_class_2 = ql2xenableclass2;
qla_cpu_update(rsp->qpair, smp_processor_id());
if (ql2xmqsupport && ha->max_qpairs) {
@ -2708,7 +2709,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
"Memory allocated for ha=%p.\n", ha);
ha->pdev = pdev;
ha->tgt.enable_class_2 = ql2xenableclass2;
INIT_LIST_HEAD(&ha->tgt.q_full_list);
spin_lock_init(&ha->tgt.q_full_lock);
spin_lock_init(&ha->tgt.sess_lock);

75
drivers/scsi/qla2xxx/qla_target.c
View File

@ -577,7 +577,7 @@ void qla2x00_async_nack_sp_done(void *s, int res)
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
sp->fcport->flags &= ~FCF_ASYNC_SENT;
sp->fcport->chip_reset = vha->hw->chip_reset;
sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
switch (sp->type) {
case SRB_NACK_PLOGI:
@ -1032,7 +1032,7 @@ static void qlt_free_session_done(struct work_struct *work)
sess->login_succ = 0;
}
if (sess->chip_reset != sess->vha->hw->chip_reset)
if (sess->chip_reset != ha->base_qpair->chip_reset)
qla2x00_clear_loop_id(sess);
if (sess->conflict) {
@ -1162,7 +1162,7 @@ static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
static void qla24xx_chk_fcp_state(struct fc_port *sess)
{
if (sess->chip_reset != sess->vha->hw->chip_reset) {
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;
@ -1917,7 +1917,7 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
mcmd->sess = sess;
memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
mcmd->reset_count = vha->hw->chip_reset;
mcmd->reset_count = ha->base_qpair->chip_reset;
mcmd->tmr_func = QLA_TGT_ABTS;
mcmd->qpair = ha->base_qpair;
@ -2146,7 +2146,7 @@ void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
if (!vha->flags.online || mcmd->reset_count != ha->chip_reset) {
if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
/*
* Either the port is not online or this request was from
* previous life, just abort the processing.
@ -2154,7 +2154,7 @@ void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
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, ha->chip_reset);
mcmd->reset_count, qpair->chip_reset);
ha->tgt.tgt_ops->free_mcmd(mcmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return;
@ -2568,20 +2568,22 @@ 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 qla_tgt *tgt = cmd->tgt;
struct scsi_qla_host *vha = tgt->vha;
struct qla_hw_data *ha = vha->hw;
struct se_cmd *se_cmd = &cmd->se_cmd;
prm->cmd = cmd;
prm->tgt = tgt;
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)
@ -2592,7 +2594,7 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x305c,
ql_dbg(ql_dbg_io + ql_dbg_verbose, cmd->vha, 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,
@ -2600,7 +2602,7 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
prm->rq_result |= SS_RESIDUAL_UNDER;
} else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg(ql_dbg_io, vha, 0x305d,
ql_dbg(ql_dbg_io, cmd->vha, 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);
@ -2614,7 +2616,7 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
*/
if (qlt_has_data(cmd)) {
if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
(IS_FWI2_CAPABLE(ha) &&
(IS_FWI2_CAPABLE(cmd->vha->hw) &&
(prm->rq_result != 0))) {
prm->add_status_pkt = 1;
(*full_req_cnt)++;
@ -2625,17 +2627,17 @@ static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
return 0;
}
static inline int qlt_need_explicit_conf(struct qla_hw_data *ha,
struct qla_tgt_cmd *cmd, int sending_sense)
static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
int sending_sense)
{
if (ha->tgt.enable_class_2)
if (cmd->qpair->enable_class_2)
return 0;
if (sending_sense)
return cmd->conf_compl_supported;
else
return ha->tgt.enable_explicit_conf &&
cmd->conf_compl_supported;
return cmd->qpair->enable_explicit_conf &&
cmd->conf_compl_supported;
}
static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
@ -2644,7 +2646,7 @@ static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
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->tgt->ha, prm->cmd, 0)) {
if (qlt_need_explicit_conf(prm->cmd, 0)) {
ctio->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
CTIO7_FLAGS_CONFORM_REQ);
@ -2654,7 +2656,7 @@ static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
int i;
if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 1)) {
if (qlt_need_explicit_conf(prm->cmd, 1)) {
if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe017,
"Skipping EXPLICIT_CONFORM and "
@ -3047,7 +3049,6 @@ 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_hw_data *ha = vha->hw;
struct qla_qpair *qpair = cmd->qpair;
struct ctio7_to_24xx *pkt;
struct qla_tgt_prm prm;
@ -3065,8 +3066,6 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
return 0;
}
memset(&prm, 0, sizeof(prm));
ql_dbg(ql_dbg_tgt, cmd->vha, 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) ?
@ -3086,7 +3085,7 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
else
vha->tgt_counters.core_qla_que_buf++;
if (!qpair->fw_started || cmd->reset_count != vha->hw->chip_reset) {
if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
/*
* Either the port is not online or this request was from
* previous life, just abort the processing.
@ -3096,7 +3095,7 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
ql_dbg(ql_dbg_async, vha, 0xe101,
"RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
vha->flags.online, qla2x00_reset_active(vha),
cmd->reset_count, vha->hw->chip_reset);
cmd->reset_count, qpair->chip_reset);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return 0;
}
@ -3133,7 +3132,7 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
cpu_to_le32(prm.residual);
pkt->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_SEND_STATUS);
if (qlt_need_explicit_conf(ha, cmd, 0)) {
if (qlt_need_explicit_conf(cmd, 0)) {
pkt->u.status0.flags |=
cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
@ -3222,7 +3221,7 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
if (qlt_pci_map_calc_cnt(&prm) != 0)
return -EAGAIN;
if (!qpair->fw_started || (cmd->reset_count != vha->hw->chip_reset) ||
if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
(cmd->sess && cmd->sess->deleted)) {
/*
* Either the port is not online or this request was from
@ -3233,7 +3232,7 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
ql_dbg(ql_dbg_async, vha, 0xe102,
"RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
vha->flags.online, qla2x00_reset_active(vha),
cmd->reset_count, vha->hw->chip_reset);
cmd->reset_count, qpair->chip_reset);
return 0;
}
@ -3979,7 +3978,6 @@ 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 qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct fc_port *sess = cmd->sess;
struct atio_from_isp *atio = &cmd->atio;
unsigned char *cdb;
@ -3990,8 +3988,6 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd)
cmd->cmd_in_wq = 0;
cmd->trc_flags |= TRC_DO_WORK;
if (tgt->tgt_stop)
goto out_term;
if (cmd->aborted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
@ -4197,10 +4193,10 @@ static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
cmd->trc_flags = 0;
cmd->jiffies_at_alloc = get_jiffies_64();
cmd->reset_count = vha->hw->chip_reset;
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;
return cmd;
}
@ -4391,7 +4387,7 @@ static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
}
mcmd->tmr_func = fn;
mcmd->flags = flags;
mcmd->reset_count = vha->hw->chip_reset;
mcmd->reset_count = ha->base_qpair->chip_reset;
mcmd->qpair = ha->base_qpair;
switch (fn) {
@ -4474,7 +4470,7 @@ static int __qlt_abort_task(struct scsi_qla_host *vha,
unpacked_lun =
scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
mcmd->reset_count = vha->hw->chip_reset;
mcmd->reset_count = ha->base_qpair->chip_reset;
mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
mcmd->qpair = ha->base_qpair;
@ -5202,7 +5198,7 @@ qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
cmd->tgt = vha->vha_tgt.qla_tgt;
cmd->vha = vha;
cmd->reset_count = vha->hw->chip_reset;
cmd->reset_count = ha->base_qpair->chip_reset;
cmd->q_full = 1;
cmd->qpair = ha->base_qpair;
@ -6638,7 +6634,7 @@ qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
return;
}
if (ha->tgt.enable_class_2) {
if (ha->base_qpair->enable_class_2) {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) =
FC_COS_CLASS2 | FC_COS_CLASS3;
@ -6742,7 +6738,7 @@ qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
return;
}
if (ha->tgt.enable_class_2) {
if (ha->base_qpair->enable_class_2) {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) =
FC_COS_CLASS2 | FC_COS_CLASS3;
@ -6866,7 +6862,8 @@ qlt_handle_abts_recv_work(struct work_struct *work)
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
if (qla2x00_reset_active(vha) || (op->chip_reset != ha->chip_reset))
if (qla2x00_reset_active(vha) ||
(op->chip_reset != ha->base_qpair->chip_reset))
return;
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
@ -6898,7 +6895,7 @@ qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
memcpy(&op->atio, pkt, sizeof(*pkt));
op->vha = vha;
op->chip_reset = vha->hw->chip_reset;
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);

3
drivers/scsi/qla2xxx/qla_target.h
View File

@ -881,6 +881,7 @@ struct qla_tgt_cmd {
struct se_cmd se_cmd;
struct fc_port *sess;
struct qla_qpair *qpair;
uint32_t reset_count;
int state;
struct work_struct work;
/* Sense buffer that will be mapped into outgoing status */
@ -906,7 +907,6 @@ struct qla_tgt_cmd {
int offset;
u64 unpacked_lun;
enum dma_data_direction dma_data_direction;
uint32_t reset_count;
uint16_t loop_id; /* to save extra sess dereferences */
struct qla_tgt *tgt; /* to save extra sess dereferences */
@ -980,7 +980,6 @@ struct qla_tgt_prm {
int seg_cnt;
int req_cnt;
uint16_t rq_result;
uint16_t scsi_status;
int sense_buffer_len;
int residual;
int add_status_pkt;