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scsi: qla2xxx: Performance tweak
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>
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@ -2726,6 +2726,9 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
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struct link_statistics *stats;
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dma_addr_t stats_dma;
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struct fc_host_statistics *p = &vha->fc_host_stat;
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struct qla_qpair *qpair;
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int i;
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u64 ib = 0, ob = 0, ir = 0, or = 0;
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memset(p, -1, sizeof(*p));
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@ -2762,6 +2765,27 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
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if (rval != QLA_SUCCESS)
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goto done_free;
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/* --- */
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for (i = 0; i < vha->hw->max_qpairs; i++) {
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qpair = vha->hw->queue_pair_map[i];
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if (!qpair)
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continue;
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ir += qpair->counters.input_requests;
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or += qpair->counters.output_requests;
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ib += qpair->counters.input_bytes;
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ob += qpair->counters.output_bytes;
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}
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ir += ha->base_qpair->counters.input_requests;
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or += ha->base_qpair->counters.output_requests;
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ib += ha->base_qpair->counters.input_bytes;
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ob += ha->base_qpair->counters.output_bytes;
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ir += vha->qla_stats.input_requests;
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or += vha->qla_stats.output_requests;
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ib += vha->qla_stats.input_bytes;
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ob += vha->qla_stats.output_bytes;
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/* --- */
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p->link_failure_count = le32_to_cpu(stats->link_fail_cnt);
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p->loss_of_sync_count = le32_to_cpu(stats->loss_sync_cnt);
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p->loss_of_signal_count = le32_to_cpu(stats->loss_sig_cnt);
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@ -2781,15 +2805,16 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
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p->rx_words = le64_to_cpu(stats->fpm_recv_word_cnt);
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p->tx_words = le64_to_cpu(stats->fpm_xmit_word_cnt);
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} else {
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p->rx_words = vha->qla_stats.input_bytes;
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p->tx_words = vha->qla_stats.output_bytes;
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p->rx_words = ib >> 2;
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p->tx_words = ob >> 2;
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}
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}
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p->fcp_control_requests = vha->qla_stats.control_requests;
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p->fcp_input_requests = vha->qla_stats.input_requests;
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p->fcp_output_requests = vha->qla_stats.output_requests;
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p->fcp_input_megabytes = vha->qla_stats.input_bytes >> 20;
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p->fcp_output_megabytes = vha->qla_stats.output_bytes >> 20;
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p->fcp_input_requests = ir;
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p->fcp_output_requests = or;
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p->fcp_input_megabytes = ib >> 20;
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p->fcp_output_megabytes = ob >> 20;
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p->seconds_since_last_reset =
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get_jiffies_64() - vha->qla_stats.jiffies_at_last_reset;
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do_div(p->seconds_since_last_reset, HZ);
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@ -2809,9 +2834,18 @@ qla2x00_reset_host_stats(struct Scsi_Host *shost)
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struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
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struct link_statistics *stats;
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dma_addr_t stats_dma;
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int i;
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struct qla_qpair *qpair;
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memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
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memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
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for (i = 0; i < vha->hw->max_qpairs; i++) {
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qpair = vha->hw->queue_pair_map[i];
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if (!qpair)
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continue;
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memset(&qpair->counters, 0, sizeof(qpair->counters));
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}
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memset(&ha->base_qpair->counters, 0, sizeof(qpair->counters));
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vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
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@ -2443,12 +2443,6 @@ typedef struct fc_port {
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struct list_head list;
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struct scsi_qla_host *vha;
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uint8_t node_name[WWN_SIZE];
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uint8_t port_name[WWN_SIZE];
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port_id_t d_id;
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uint16_t loop_id;
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uint16_t old_loop_id;
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unsigned int conf_compl_supported:1;
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unsigned int deleted:2;
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unsigned int free_pending:1;
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@ -2465,6 +2459,13 @@ typedef struct fc_port {
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unsigned int n2n_flag:1;
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unsigned int explicit_logout:1;
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unsigned int prli_pend_timer:1;
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uint8_t nvme_flag;
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uint8_t node_name[WWN_SIZE];
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uint8_t port_name[WWN_SIZE];
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port_id_t d_id;
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uint16_t loop_id;
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uint16_t old_loop_id;
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struct completion nvme_del_done;
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uint32_t nvme_prli_service_param;
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@ -2473,7 +2474,7 @@ typedef struct fc_port {
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#define NVME_PRLI_SP_TARGET BIT_4
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#define NVME_PRLI_SP_DISCOVERY BIT_3
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#define NVME_PRLI_SP_FIRST_BURST BIT_0
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uint8_t nvme_flag;
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uint32_t nvme_first_burst_size;
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#define NVME_FLAG_REGISTERED 4
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#define NVME_FLAG_DELETING 2
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@ -3510,6 +3511,14 @@ struct qla_tgt_counters {
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uint64_t num_term_xchg_sent;
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};
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struct qla_counters {
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uint64_t input_bytes;
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uint64_t input_requests;
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uint64_t output_bytes;
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uint64_t output_requests;
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};
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struct qla_qpair;
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/* Response queue data structure */
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@ -3594,6 +3603,7 @@ struct qla_qpair {
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uint32_t enable_class_2:1;
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uint32_t enable_explicit_conf:1;
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uint32_t use_shadow_reg:1;
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uint32_t rcv_intr:1;
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uint16_t id; /* qp number used with FW */
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uint16_t vp_idx; /* vport ID */
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@ -3609,13 +3619,16 @@ struct qla_qpair {
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struct qla_msix_entry *msix; /* point to &ha->msix_entries[x] */
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struct qla_hw_data *hw;
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struct work_struct q_work;
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struct qla_counters counters;
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struct list_head qp_list_elem; /* vha->qp_list */
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struct list_head hints_list;
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uint16_t cpuid;
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uint16_t retry_term_cnt;
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__le32 retry_term_exchg_addr;
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uint64_t retry_term_jiff;
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struct qla_tgt_counters tgt_counters;
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uint16_t cpuid;
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};
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/* Place holder for FW buffer parameters */
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@ -4129,6 +4142,10 @@ struct qla_hw_data {
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#define USE_ASYNC_SCAN(ha) (IS_QLA25XX(ha) || IS_QLA81XX(ha) ||\
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IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
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#define IS_ZIO_THRESHOLD_CAPABLE(ha) \
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((IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&\
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(ha->zio_mode == QLA_ZIO_MODE_6))
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/* HBA serial number */
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uint8_t serial0;
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uint8_t serial1;
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@ -3700,9 +3700,7 @@ execute_fw_with_lr:
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goto execute_fw_with_lr;
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}
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if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
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IS_QLA28XX(ha)) &&
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(ha->zio_mode == QLA_ZIO_MODE_6))
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if (IS_ZIO_THRESHOLD_CAPABLE(ha))
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qla27xx_set_zio_threshold(vha,
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ha->last_zio_threshold);
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@ -594,6 +594,7 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
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uint32_t dsd_list_len;
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struct dsd_dma *dsd_ptr;
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struct ct6_dsd *ctx;
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struct qla_qpair *qpair = sp->qpair;
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cmd = GET_CMD_SP(sp);
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@ -612,12 +613,12 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
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/* Set transfer direction */
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if (cmd->sc_data_direction == DMA_TO_DEVICE) {
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cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
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vha->qla_stats.output_bytes += scsi_bufflen(cmd);
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vha->qla_stats.output_requests++;
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qpair->counters.output_bytes += scsi_bufflen(cmd);
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qpair->counters.output_requests++;
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} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
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cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
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vha->qla_stats.input_bytes += scsi_bufflen(cmd);
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vha->qla_stats.input_requests++;
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qpair->counters.input_bytes += scsi_bufflen(cmd);
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qpair->counters.input_requests++;
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}
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cur_seg = scsi_sglist(cmd);
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@ -704,6 +705,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
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struct scsi_cmnd *cmd;
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struct scatterlist *sg;
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int i;
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struct qla_qpair *qpair = sp->qpair;
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cmd = GET_CMD_SP(sp);
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@ -721,12 +723,12 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
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/* Set transfer direction */
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if (cmd->sc_data_direction == DMA_TO_DEVICE) {
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cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
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vha->qla_stats.output_bytes += scsi_bufflen(cmd);
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vha->qla_stats.output_requests++;
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qpair->counters.output_bytes += scsi_bufflen(cmd);
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qpair->counters.output_requests++;
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} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
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cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
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vha->qla_stats.input_bytes += scsi_bufflen(cmd);
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vha->qla_stats.input_requests++;
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qpair->counters.input_bytes += scsi_bufflen(cmd);
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qpair->counters.input_requests++;
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}
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/* One DSD is available in the Command Type 3 IOCB */
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@ -3440,8 +3440,10 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
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if (!ha->flags.fw_started)
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return;
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if (rsp->qpair->cpuid != smp_processor_id())
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if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
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rsp->qpair->rcv_intr = 1;
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qla_cpu_update(rsp->qpair, smp_processor_id());
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}
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while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
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pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
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@ -3890,7 +3892,7 @@ qla2xxx_msix_rsp_q(int irq, void *dev_id)
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}
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ha = qpair->hw;
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queue_work(ha->wq, &qpair->q_work);
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queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
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return IRQ_HANDLED;
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}
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@ -3916,7 +3918,7 @@ qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
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wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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queue_work(ha->wq, &qpair->q_work);
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queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
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return IRQ_HANDLED;
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}
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@ -808,11 +808,9 @@ static void qla_do_work(struct work_struct *work)
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{
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unsigned long flags;
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struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
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struct scsi_qla_host *vha;
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struct qla_hw_data *ha = qpair->hw;
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struct scsi_qla_host *vha = qpair->vha;
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spin_lock_irqsave(&qpair->qp_lock, flags);
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vha = pci_get_drvdata(ha->pdev);
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qla24xx_process_response_queue(vha, qpair->rsp);
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spin_unlock_irqrestore(&qpair->qp_lock, flags);
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@ -428,8 +428,8 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp)
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/* No data transfer how do we check buffer len == 0?? */
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if (fd->io_dir == NVMEFC_FCP_READ) {
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cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
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vha->qla_stats.input_bytes += fd->payload_length;
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vha->qla_stats.input_requests++;
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qpair->counters.input_bytes += fd->payload_length;
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qpair->counters.input_requests++;
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} else if (fd->io_dir == NVMEFC_FCP_WRITE) {
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cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
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if ((vha->flags.nvme_first_burst) &&
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@ -441,8 +441,8 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp)
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cmd_pkt->control_flags |=
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cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE);
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}
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vha->qla_stats.output_bytes += fd->payload_length;
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vha->qla_stats.output_requests++;
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qpair->counters.output_bytes += fd->payload_length;
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qpair->counters.output_requests++;
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} else if (fd->io_dir == 0) {
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cmd_pkt->control_flags = 0;
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}
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@ -7198,8 +7198,10 @@ qla2x00_timer(struct timer_list *t)
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* FC-NVME
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* see if the active AEN count has changed from what was last reported.
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*/
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index = atomic_read(&ha->nvme_active_aen_cnt);
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if (!vha->vp_idx &&
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(atomic_read(&ha->nvme_active_aen_cnt) != ha->nvme_last_rptd_aen) &&
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(index != ha->nvme_last_rptd_aen) &&
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(index >= DEFAULT_ZIO_THRESHOLD) &&
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ha->zio_mode == QLA_ZIO_MODE_6 &&
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!ha->flags.host_shutting_down) {
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ql_log(ql_log_info, vha, 0x3002,
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@ -7211,9 +7213,8 @@ qla2x00_timer(struct timer_list *t)
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}
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if (!vha->vp_idx &&
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(atomic_read(&ha->zio_threshold) != ha->last_zio_threshold) &&
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(ha->zio_mode == QLA_ZIO_MODE_6) &&
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(IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
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atomic_read(&ha->zio_threshold) != ha->last_zio_threshold &&
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IS_ZIO_THRESHOLD_CAPABLE(ha)) {
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ql_log(ql_log_info, vha, 0x3002,
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"Sched: Set ZIO exchange threshold to %d.\n",
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ha->last_zio_threshold);
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