From: Quinn Tran <qutran@marvell.com>
Date: Thu, 3 Sep 2020 21:51:22 -0700
Subject: scsi: qla2xxx: Performance tweak
Patch-mainline: Queued in subsystem maintainer repository
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git
Git-commit: 49db4d4e02aabcd4fa2f60142ef42e50fb2dd526
References: bsc#1176946 bsc#1175520 bsc#1172538
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>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
drivers/scsi/qla2xxx/qla_attr.c | 46 ++++++++++++++++++++++++++++++++++------
drivers/scsi/qla2xxx/qla_def.h | 33 +++++++++++++++++++++-------
drivers/scsi/qla2xxx/qla_init.c | 4 ---
drivers/scsi/qla2xxx/qla_iocb.c | 18 ++++++++-------
drivers/scsi/qla2xxx/qla_isr.c | 8 ++++--
drivers/scsi/qla2xxx/qla_mid.c | 4 ---
drivers/scsi/qla2xxx/qla_nvme.c | 8 +++---
drivers/scsi/qla2xxx/qla_os.c | 9 ++++---
8 files changed, 91 insertions(+), 39 deletions(-)
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -2726,6 +2726,9 @@ qla2x00_get_fc_host_stats(struct Scsi_Ho
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_Ho
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_Ho
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_Hos
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();
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -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;
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3700,9 +3700,7 @@ qla2x00_setup_chip(scsi_qla_host_t *vha)
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);
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -594,6 +594,7 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *s
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 *s
/* 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, stru
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, stru
/* 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 */
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -3414,8 +3414,10 @@ void qla24xx_process_response_queue(stru
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;
@@ -3865,7 +3867,7 @@ 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;
}
@@ -3891,7 +3893,7 @@ qla2xxx_msix_rsp_q_hs(int irq, void *dev
wrt_reg_dword(®->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;
}
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -808,11 +808,9 @@ static void qla_do_work(struct work_stru
{
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);
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -439,8 +439,8 @@ static inline int qla2x00_start_nvme_mq(
/* 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) &&
@@ -452,8 +452,8 @@ static inline int qla2x00_start_nvme_mq(
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;
}
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -7210,8 +7210,10 @@ qla2x00_timer(scsi_qla_host_t *vha)
* 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,
@@ -7223,9 +7225,8 @@ qla2x00_timer(scsi_qla_host_t *vha)
}
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);