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Commit 60a9eadb authored Jun 13, 2017 by Quinn Tran Committed by Martin K. Petersen Jun 27, 2017

scsi: qla2xxx: Move target stat counters from vha to qpair.



Move counters to qpair to reduce cache miss.

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>

parent b5399f7d

drivers/scsi/qla2xxx/qla_def.h

+13 −14

Original line number	Diff line number	Diff line
		@@ -3183,6 +3183,18 @@ struct qla_tc_param {
		#define QLA_MAX_VPORTS_QLA24XX 128
		#define QLA_MAX_VPORTS_QLA25XX 256

		struct qla_tgt_counters {
		uint64_t qla_core_sbt_cmd;
		uint64_t core_qla_que_buf;
		uint64_t qla_core_ret_ctio;
		uint64_t core_qla_snd_status;
		uint64_t qla_core_ret_sta_ctio;
		uint64_t core_qla_free_cmd;
		uint64_t num_q_full_sent;
		uint64_t num_alloc_iocb_failed;
		uint64_t num_term_xchg_sent;
		};

		struct qla_qpair;

		/* Response queue data structure */
		@@ -3285,6 +3297,7 @@ struct qla_qpair {
		struct list_head qp_list_elem; /* vha->qp_list */
		struct list_head hints_list;
		uint16_t cpuid;
		struct qla_tgt_counters tgt_counters;
		};

		/* Place holder for FW buffer parameters */
		@@ -3964,18 +3977,6 @@ struct qla_hw_data {
		int allow_cna_fw_dump;
		};

		struct qla_tgt_counters {
		uint64_t qla_core_sbt_cmd;
		uint64_t core_qla_que_buf;
		uint64_t qla_core_ret_ctio;
		uint64_t core_qla_snd_status;
		uint64_t qla_core_ret_sta_ctio;
		uint64_t core_qla_free_cmd;
		uint64_t num_q_full_sent;
		uint64_t num_alloc_iocb_failed;
		uint64_t num_term_xchg_sent;
		};

		/*
		* Qlogic scsi host structure
		*/
		@@ -4140,10 +4141,8 @@ typedef struct scsi_qla_host {
		struct fc_host_statistics fc_host_stat;
		struct qla_statistics qla_stats;
		struct bidi_statistics bidi_stats;

		atomic_t vref_count;
		struct qla8044_reset_template reset_tmplt;
		struct qla_tgt_counters tgt_counters;
		uint16_t bbcr;
		struct name_list_extended gnl;
		/* Count of active session/fcport */

drivers/scsi/qla2xxx/qla_dfs.c

+39 −9

Original line number	Diff line number	Diff line
		@@ -164,26 +164,56 @@ static int
		qla_dfs_tgt_counters_show(struct seq_file s, void unused)
		{
		struct scsi_qla_host *vha = s->private;
		struct qla_qpair *qpair = vha->hw->base_qpair;
		uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
		core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
		num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
		u16 i;

		qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
		core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
		qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
		core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
		qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio;
		core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd;
		num_q_full_sent = qpair->tgt_counters.num_q_full_sent;
		num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed;
		num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;

		for (i = 0; i < vha->hw->max_qpairs; i++) {
		qpair = vha->hw->queue_pair_map[i];
		qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
		core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
		qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
		core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
		qla_core_ret_sta_ctio +=
		qpair->tgt_counters.qla_core_ret_sta_ctio;
		core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
		num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
		num_alloc_iocb_failed +=
		qpair->tgt_counters.num_alloc_iocb_failed;
		num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
		}

		seq_puts(s, "Target Counters\n");
		seq_printf(s, "qla_core_sbt_cmd = %lld\n",
		vha->tgt_counters.qla_core_sbt_cmd);
		qla_core_sbt_cmd);
		seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
		vha->tgt_counters.qla_core_ret_sta_ctio);
		qla_core_ret_sta_ctio);
		seq_printf(s, "qla_core_ret_ctio = %lld\n",
		vha->tgt_counters.qla_core_ret_ctio);
		qla_core_ret_ctio);
		seq_printf(s, "core_qla_que_buf = %lld\n",
		vha->tgt_counters.core_qla_que_buf);
		core_qla_que_buf);
		seq_printf(s, "core_qla_snd_status = %lld\n",
		vha->tgt_counters.core_qla_snd_status);
		core_qla_snd_status);
		seq_printf(s, "core_qla_free_cmd = %lld\n",
		vha->tgt_counters.core_qla_free_cmd);
		core_qla_free_cmd);
		seq_printf(s, "num alloc iocb failed = %lld\n",
		vha->tgt_counters.num_alloc_iocb_failed);
		num_alloc_iocb_failed);
		seq_printf(s, "num term exchange sent = %lld\n",
		vha->tgt_counters.num_term_xchg_sent);
		num_term_xchg_sent);
		seq_printf(s, "num Q full sent = %lld\n",
		vha->tgt_counters.num_q_full_sent);
		num_q_full_sent);

		/* DIF stats */
		seq_printf(s, "DIF Inp Bytes = %lld\n",

drivers/scsi/qla2xxx/qla_iocb.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2189,7 +2189,7 @@ __qla2x00_alloc_iocbs(struct qla_qpair qpair, srb_t sp)
		}

		queuing_error:
		vha->tgt_counters.num_alloc_iocb_failed++;
		qpair->tgt_counters.num_alloc_iocb_failed++;
		return pkt;
		}

drivers/scsi/qla2xxx/qla_target.c

+6 −7

Original line number	Diff line number	Diff line
		@@ -3078,9 +3078,9 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
		spin_lock_irqsave(qpair->qp_lock_ptr, flags);

		if (xmit_type == QLA_TGT_XMIT_STATUS)
		vha->tgt_counters.core_qla_snd_status++;
		qpair->tgt_counters.core_qla_snd_status++;
		else
		vha->tgt_counters.core_qla_que_buf++;
		qpair->tgt_counters.core_qla_que_buf++;

		if (!qpair->fw_started \|\| cmd->reset_count != qpair->chip_reset) {
		/*
		@@ -3500,7 +3500,7 @@ static int __qlt_send_term_exchange(struct qla_qpair *qpair,
		ret = 1;
		}

		vha->tgt_counters.num_term_xchg_sent++;
		qpair->tgt_counters.num_term_xchg_sent++;
		pkt->entry_count = 1;
		pkt->handle = QLA_TGT_SKIP_HANDLE \| CTIO_COMPLETION_HANDLE_MARK;

		@@ -5103,7 +5103,7 @@ static int __qlt_send_busy(struct qla_qpair *qpair,
		return -ENOMEM;
		}

		vha->tgt_counters.num_q_full_sent++;
		qpair->tgt_counters.num_q_full_sent++;
		pkt->entry_count = 1;
		pkt->handle = QLA_TGT_SKIP_HANDLE \| CTIO_COMPLETION_HANDLE_MARK;

		@@ -5466,13 +5466,12 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
		static void qlt_response_pkt(struct scsi_qla_host *vha,
		struct rsp_que rsp, response_t pkt)
		{
		struct qla_hw_data *ha = vha->hw;
		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, ha);
		"qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
		vha->vp_idx, pkt->entry_type, vha->hw);
		return;
		}

drivers/scsi/qla2xxx/tcm_qla2xxx.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -283,7 +283,7 @@ static void tcm_qla2xxx_complete_free(struct work_struct *work)

		WARN_ON(cmd->trc_flags & TRC_CMD_FREE);

		cmd->vha->tgt_counters.qla_core_ret_sta_ctio++;
		cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++;
		cmd->trc_flags \|= TRC_CMD_FREE;
		transport_generic_free_cmd(&cmd->se_cmd, 0);
		}
		@@ -295,7 +295,7 @@ static void tcm_qla2xxx_complete_free(struct work_struct *work)
		*/
		static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
		{
		cmd->vha->tgt_counters.core_qla_free_cmd++;
		cmd->qpair->tgt_counters.core_qla_free_cmd++;
		cmd->cmd_in_wq = 1;

		WARN_ON(cmd->trc_flags & TRC_CMD_DONE);
		@@ -491,7 +491,7 @@ static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t vha, struct qla_tgt_cmd cmd,
		}
		#endif

		cmd->vha->tgt_counters.qla_core_sbt_cmd++;
		cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
		return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
		cmd->unpacked_lun, data_length, fcp_task_attr,
		data_dir, flags);
		@@ -519,7 +519,7 @@ static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
		}
		spin_unlock_irqrestore(&cmd->cmd_lock, flags);

		cmd->vha->tgt_counters.qla_core_ret_ctio++;
		cmd->qpair->tgt_counters.qla_core_ret_ctio++;
		if (!cmd->write_data_transferred) {
		/*
		* Check if se_cmd has already been aborted via LUN_RESET, and