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scsi: qla2xxx: Performance tweak

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Move statistics fields from vha struct to qpair to reduce memory thrashing.

Link: https://lore.kernel.org/r/20200904045128.23631-8-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran 2020-09-03 21:51:22 -07:00 committed by Martin K. Petersen
parent d38cb849e1
commit 49db4d4e02
8 changed files with 91 additions and 39 deletions
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46
drivers/scsi/qla2xxx/qla_attr.c
View File

@ -2726,6 +2726,9 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
struct link_statistics *stats;
dma_addr_t stats_dma;
struct fc_host_statistics *p = &vha->fc_host_stat;
struct qla_qpair *qpair;
int i;
u64 ib = 0, ob = 0, ir = 0, or = 0;
memset(p, -1, sizeof(*p));
@ -2762,6 +2765,27 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
if (rval != QLA_SUCCESS)
goto done_free;
/* --- */
for (i = 0; i < vha->hw->max_qpairs; i++) {
qpair = vha->hw->queue_pair_map[i];
if (!qpair)
continue;
ir += qpair->counters.input_requests;
or += qpair->counters.output_requests;
ib += qpair->counters.input_bytes;
ob += qpair->counters.output_bytes;
}
ir += ha->base_qpair->counters.input_requests;
or += ha->base_qpair->counters.output_requests;
ib += ha->base_qpair->counters.input_bytes;
ob += ha->base_qpair->counters.output_bytes;
ir += vha->qla_stats.input_requests;
or += vha->qla_stats.output_requests;
ib += vha->qla_stats.input_bytes;
ob += vha->qla_stats.output_bytes;
/* --- */
p->link_failure_count = le32_to_cpu(stats->link_fail_cnt);
p->loss_of_sync_count = le32_to_cpu(stats->loss_sync_cnt);
p->loss_of_signal_count = le32_to_cpu(stats->loss_sig_cnt);
@ -2781,15 +2805,16 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
p->rx_words = le64_to_cpu(stats->fpm_recv_word_cnt);
p->tx_words = le64_to_cpu(stats->fpm_xmit_word_cnt);
} else {
p->rx_words = vha->qla_stats.input_bytes;
p->tx_words = vha->qla_stats.output_bytes;
p->rx_words = ib >> 2;
p->tx_words = ob >> 2;
}
}
p->fcp_control_requests = vha->qla_stats.control_requests;
p->fcp_input_requests = vha->qla_stats.input_requests;
p->fcp_output_requests = vha->qla_stats.output_requests;
p->fcp_input_megabytes = vha->qla_stats.input_bytes >> 20;
p->fcp_output_megabytes = vha->qla_stats.output_bytes >> 20;
p->fcp_input_requests = ir;
p->fcp_output_requests = or;
p->fcp_input_megabytes = ib >> 20;
p->fcp_output_megabytes = ob >> 20;
p->seconds_since_last_reset =
get_jiffies_64() - vha->qla_stats.jiffies_at_last_reset;
do_div(p->seconds_since_last_reset, HZ);
@ -2809,9 +2834,18 @@ qla2x00_reset_host_stats(struct Scsi_Host *shost)
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
struct link_statistics *stats;
dma_addr_t stats_dma;
int i;
struct qla_qpair *qpair;
memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
for (i = 0; i < vha->hw->max_qpairs; i++) {
qpair = vha->hw->queue_pair_map[i];
if (!qpair)
continue;
memset(&qpair->counters, 0, sizeof(qpair->counters));
}
memset(&ha->base_qpair->counters, 0, sizeof(qpair->counters));
vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();

33
drivers/scsi/qla2xxx/qla_def.h
View File

@ -2443,12 +2443,6 @@ typedef struct fc_port {
struct list_head list;
struct scsi_qla_host *vha;
uint8_t node_name[WWN_SIZE];
uint8_t port_name[WWN_SIZE];
port_id_t d_id;
uint16_t loop_id;
uint16_t old_loop_id;
unsigned int conf_compl_supported:1;
unsigned int deleted:2;
unsigned int free_pending:1;
@ -2465,6 +2459,13 @@ typedef struct fc_port {
unsigned int n2n_flag:1;
unsigned int explicit_logout:1;
unsigned int prli_pend_timer:1;
uint8_t nvme_flag;
uint8_t node_name[WWN_SIZE];
uint8_t port_name[WWN_SIZE];
port_id_t d_id;
uint16_t loop_id;
uint16_t old_loop_id;
struct completion nvme_del_done;
uint32_t nvme_prli_service_param;
@ -2473,7 +2474,7 @@ typedef struct fc_port {
#define NVME_PRLI_SP_TARGET BIT_4
#define NVME_PRLI_SP_DISCOVERY BIT_3
#define NVME_PRLI_SP_FIRST_BURST BIT_0
uint8_t nvme_flag;
uint32_t nvme_first_burst_size;
#define NVME_FLAG_REGISTERED 4
#define NVME_FLAG_DELETING 2
@ -3510,6 +3511,14 @@ struct qla_tgt_counters {
uint64_t num_term_xchg_sent;
};
struct qla_counters {
uint64_t input_bytes;
uint64_t input_requests;
uint64_t output_bytes;
uint64_t output_requests;
};
struct qla_qpair;
/* Response queue data structure */
@ -3594,6 +3603,7 @@ struct qla_qpair {
uint32_t enable_class_2:1;
uint32_t enable_explicit_conf:1;
uint32_t use_shadow_reg:1;
uint32_t rcv_intr:1;
uint16_t id; /* qp number used with FW */
uint16_t vp_idx; /* vport ID */
@ -3609,13 +3619,16 @@ struct qla_qpair {
struct qla_msix_entry *msix; /* point to &ha->msix_entries[x] */
struct qla_hw_data *hw;
struct work_struct q_work;
struct qla_counters counters;
struct list_head qp_list_elem; /* vha->qp_list */
struct list_head hints_list;
uint16_t cpuid;
uint16_t retry_term_cnt;
__le32 retry_term_exchg_addr;
uint64_t retry_term_jiff;
struct qla_tgt_counters tgt_counters;
uint16_t cpuid;
};
/* Place holder for FW buffer parameters */
@ -4129,6 +4142,10 @@ struct qla_hw_data {
#define USE_ASYNC_SCAN(ha) (IS_QLA25XX(ha) || IS_QLA81XX(ha) ||\
IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
#define IS_ZIO_THRESHOLD_CAPABLE(ha) \
((IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&\
(ha->zio_mode == QLA_ZIO_MODE_6))
/* HBA serial number */
uint8_t serial0;
uint8_t serial1;

4
drivers/scsi/qla2xxx/qla_init.c
View File

@ -3700,9 +3700,7 @@ execute_fw_with_lr:
goto execute_fw_with_lr;
}
if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) &&
(ha->zio_mode == QLA_ZIO_MODE_6))
if (IS_ZIO_THRESHOLD_CAPABLE(ha))
qla27xx_set_zio_threshold(vha,
ha->last_zio_threshold);

18
drivers/scsi/qla2xxx/qla_iocb.c
View File

@ -594,6 +594,7 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
uint32_t dsd_list_len;
struct dsd_dma *dsd_ptr;
struct ct6_dsd *ctx;
struct qla_qpair *qpair = sp->qpair;
cmd = GET_CMD_SP(sp);
@ -612,12 +613,12 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
vha->qla_stats.output_requests++;
qpair->counters.output_bytes += scsi_bufflen(cmd);
qpair->counters.output_requests++;
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
vha->qla_stats.input_requests++;
qpair->counters.input_bytes += scsi_bufflen(cmd);
qpair->counters.input_requests++;
}
cur_seg = scsi_sglist(cmd);
@ -704,6 +705,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
struct scsi_cmnd *cmd;
struct scatterlist *sg;
int i;
struct qla_qpair *qpair = sp->qpair;
cmd = GET_CMD_SP(sp);
@ -721,12 +723,12 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
vha->qla_stats.output_requests++;
qpair->counters.output_bytes += scsi_bufflen(cmd);
qpair->counters.output_requests++;
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
vha->qla_stats.input_requests++;
qpair->counters.input_bytes += scsi_bufflen(cmd);
qpair->counters.input_requests++;
}
/* One DSD is available in the Command Type 3 IOCB */

8
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -3440,8 +3440,10 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
if (!ha->flags.fw_started)
return;
if (rsp->qpair->cpuid != smp_processor_id())
if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
rsp->qpair->rcv_intr = 1;
qla_cpu_update(rsp->qpair, smp_processor_id());
}
while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
@ -3890,7 +3892,7 @@ qla2xxx_msix_rsp_q(int irq, void *dev_id)
}
ha = qpair->hw;
queue_work(ha->wq, &qpair->q_work);
queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
return IRQ_HANDLED;
}
@ -3916,7 +3918,7 @@ qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
queue_work(ha->wq, &qpair->q_work);
queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
return IRQ_HANDLED;
}

4
drivers/scsi/qla2xxx/qla_mid.c
View File

@ -808,11 +808,9 @@ static void qla_do_work(struct work_struct *work)
{
unsigned long flags;
struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
struct scsi_qla_host *vha;
struct qla_hw_data *ha = qpair->hw;
struct scsi_qla_host *vha = qpair->vha;
spin_lock_irqsave(&qpair->qp_lock, flags);
vha = pci_get_drvdata(ha->pdev);
qla24xx_process_response_queue(vha, qpair->rsp);
spin_unlock_irqrestore(&qpair->qp_lock, flags);

8
drivers/scsi/qla2xxx/qla_nvme.c
View File

@ -428,8 +428,8 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp)
/* No data transfer how do we check buffer len == 0?? */
if (fd->io_dir == NVMEFC_FCP_READ) {
cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
vha->qla_stats.input_bytes += fd->payload_length;
vha->qla_stats.input_requests++;
qpair->counters.input_bytes += fd->payload_length;
qpair->counters.input_requests++;
} else if (fd->io_dir == NVMEFC_FCP_WRITE) {
cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
if ((vha->flags.nvme_first_burst) &&
@ -441,8 +441,8 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp)
cmd_pkt->control_flags |=
cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE);
}
vha->qla_stats.output_bytes += fd->payload_length;
vha->qla_stats.output_requests++;
qpair->counters.output_bytes += fd->payload_length;
qpair->counters.output_requests++;
} else if (fd->io_dir == 0) {
cmd_pkt->control_flags = 0;
}

9
drivers/scsi/qla2xxx/qla_os.c
View File

@ -7198,8 +7198,10 @@ qla2x00_timer(struct timer_list *t)
* FC-NVME
* see if the active AEN count has changed from what was last reported.
*/
index = atomic_read(&ha->nvme_active_aen_cnt);
if (!vha->vp_idx &&
(atomic_read(&ha->nvme_active_aen_cnt) != ha->nvme_last_rptd_aen) &&
(index != ha->nvme_last_rptd_aen) &&
(index >= DEFAULT_ZIO_THRESHOLD) &&
ha->zio_mode == QLA_ZIO_MODE_6 &&
!ha->flags.host_shutting_down) {
ql_log(ql_log_info, vha, 0x3002,
@ -7211,9 +7213,8 @@ qla2x00_timer(struct timer_list *t)
}
if (!vha->vp_idx &&
(atomic_read(&ha->zio_threshold) != ha->last_zio_threshold) &&
(ha->zio_mode == QLA_ZIO_MODE_6) &&
(IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
atomic_read(&ha->zio_threshold) != ha->last_zio_threshold &&
IS_ZIO_THRESHOLD_CAPABLE(ha)) {
ql_log(ql_log_info, vha, 0x3002,
"Sched: Set ZIO exchange threshold to %d.\n",
ha->last_zio_threshold);