NVME Target: Add debugfs support
Adds debugfs snippets to cover the new NVME target functionality
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <james.smart@xxxxxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_debugfs.c | 387 ++++++++++++++++++++++++++++++++++++++-
drivers/scsi/lpfc/lpfc_nvmet.c | 279 +++++++++++++++++++++++++++-
drivers/scsi/lpfc/lpfc_nvmet.h | 13 ++
3 files changed, 674 insertions(+), 5 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 92f82c2..abd4b83 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -47,6 +47,7 @@
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
+#include "lpfc_nvmet.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
@@ -537,11 +538,13 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
int len = 0;
int cnt;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
unsigned char *statep;
struct nvme_fc_local_port *localport;
struct lpfc_nvme_lport *lport;
struct lpfc_nvme_rport *rport;
+ struct lpfc_nvmet_tgtport *tgtp;
struct nvme_fc_remote_port *nrport;
cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
@@ -620,6 +623,26 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
}
spin_unlock_irq(shost->host_lock);
+ if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
+ tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
+ len += snprintf(buf+len, size-len,
+ "\nNVME Targetport Entry ...\n");
+
+ /* Port state is only one of two values for now. */
+ if (phba->targetport->port_id)
+ statep = "REGISTERED";
+ else
+ statep = "INIT";
+ len += snprintf(buf+len, size-len,
+ "TGT WWNN x%llx WWPN x%llx State %s\n",
+ wwn_to_u64(vport->fc_nodename.u.wwn),
+ wwn_to_u64(vport->fc_portname.u.wwn),
+ statep);
+ len += snprintf(buf+len, size-len,
+ " Targetport DID x%06x\n",
+ phba->targetport->port_id);
+ goto out_exit;
+ }
len += snprintf(buf+len, size-len, "\nNVME Lport/Rport Entries ...\n");
localport = vport->localport;
@@ -711,9 +734,75 @@ static int
lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
{
struct lpfc_hba *phba = vport->phba;
+ struct lpfc_nvmet_tgtport *tgtp;
int len = 0;
- if (phba->nvmet_support == 0) {
+ if (phba->nvmet_support) {
+ if (!phba->targetport)
+ return len;
+ tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
+ len += snprintf(buf+len, size-len,
+ "\nNVME Targetport Statistics\n");
+
+ len += snprintf(buf+len, size-len,
+ "LS: Rcv %08x Drop %08x Abort %08x\n",
+ atomic_read(&tgtp->rcv_ls_req_in),
+ atomic_read(&tgtp->rcv_ls_req_drop),
+ atomic_read(&tgtp->xmt_ls_abort));
+ if (atomic_read(&tgtp->rcv_ls_req_in) !=
+ atomic_read(&tgtp->rcv_ls_req_out)) {
+ len += snprintf(buf+len, size-len,
+ "Rcv LS: in %08x != out %08x\n",
+ atomic_read(&tgtp->rcv_ls_req_in),
+ atomic_read(&tgtp->rcv_ls_req_out));
+ }
+
+ len += snprintf(buf+len, size-len,
+ "LS: Xmt %08x Drop %08x Cmpl %08x Err %08x\n",
+ atomic_read(&tgtp->xmt_ls_rsp),
+ atomic_read(&tgtp->xmt_ls_drop),
+ atomic_read(&tgtp->xmt_ls_rsp_cmpl),
+ atomic_read(&tgtp->xmt_ls_rsp_error));
+
+ len += snprintf(buf+len, size-len,
+ "FCP: Rcv %08x Drop %08x\n",
+ atomic_read(&tgtp->rcv_fcp_cmd_in),
+ atomic_read(&tgtp->rcv_fcp_cmd_drop));
+
+ if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
+ atomic_read(&tgtp->rcv_fcp_cmd_out)) {
+ len += snprintf(buf+len, size-len,
+ "Rcv FCP: in %08x != out %08x\n",
+ atomic_read(&tgtp->rcv_fcp_cmd_in),
+ atomic_read(&tgtp->rcv_fcp_cmd_out));
+ }
+
+ len += snprintf(buf+len, size-len,
+ "FCP Rsp: read %08x readrsp %08x write %08x rsp %08x\n",
+ atomic_read(&tgtp->xmt_fcp_read),
+ atomic_read(&tgtp->xmt_fcp_read_rsp),
+ atomic_read(&tgtp->xmt_fcp_write),
+ atomic_read(&tgtp->xmt_fcp_rsp));
+
+ len += snprintf(buf+len, size-len,
+ "FCP Rsp: abort %08x drop %08x\n",
+ atomic_read(&tgtp->xmt_fcp_abort),
+ atomic_read(&tgtp->xmt_fcp_drop));
+
+ len += snprintf(buf+len, size-len,
+ "FCP Rsp Cmpl: %08x err %08x drop %08x\n",
+ atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
+ atomic_read(&tgtp->xmt_fcp_rsp_error),
+ atomic_read(&tgtp->xmt_fcp_rsp_drop));
+
+ len += snprintf(buf+len, size-len,
+ "ABORT: Xmt %08x Err %08x Cmpl %08x",
+ atomic_read(&tgtp->xmt_abort_rsp),
+ atomic_read(&tgtp->xmt_abort_rsp_error),
+ atomic_read(&tgtp->xmt_abort_cmpl));
+
+ len += snprintf(buf+len, size-len, "\n");
+ } else {
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
return len;
@@ -821,6 +910,121 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
phba->ktime_data_samples));
return len;
}
+
+ /* NVME Target */
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "ktime %s: Total Samples: %lld %lld\n",
+ (phba->ktime_on ? "Enabled" : "Disabled"),
+ phba->ktime_data_samples,
+ phba->ktime_status_samples);
+ if (phba->ktime_data_samples == 0)
+ return len;
+
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 1: MSI-X ISR Rcv cmd -to- "
+ "cmd pass to NVME Layer\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg1_total /
+ phba->ktime_data_samples,
+ phba->ktime_seg1_min,
+ phba->ktime_seg1_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 2: cmd pass to NVME Layer- "
+ "-to- Driver rcv cmd OP (action)\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg2_total /
+ phba->ktime_data_samples,
+ phba->ktime_seg2_min,
+ phba->ktime_seg2_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 3: Driver rcv cmd OP -to- "
+ "Firmware WQ doorbell: cmd\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg3_total /
+ phba->ktime_data_samples,
+ phba->ktime_seg3_min,
+ phba->ktime_seg3_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 4: Firmware WQ doorbell: cmd "
+ "-to- MSI-X ISR for cmd cmpl\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg4_total /
+ phba->ktime_data_samples,
+ phba->ktime_seg4_min,
+ phba->ktime_seg4_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 5: MSI-X ISR for cmd cmpl "
+ "-to- NVME layer passed cmd done\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg5_total /
+ phba->ktime_data_samples,
+ phba->ktime_seg5_min,
+ phba->ktime_seg5_max);
+
+ if (phba->ktime_status_samples == 0) {
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Total: cmd received by MSI-X ISR "
+ "-to- cmd completed on wire\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld "
+ "max %08lld\n",
+ phba->ktime_seg10_total /
+ phba->ktime_data_samples,
+ phba->ktime_seg10_min,
+ phba->ktime_seg10_max);
+ return len;
+ }
+
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 6: NVME layer passed cmd done "
+ "-to- Driver rcv rsp status OP\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg6_total /
+ phba->ktime_status_samples,
+ phba->ktime_seg6_min,
+ phba->ktime_seg6_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 7: Driver rcv rsp status OP "
+ "-to- Firmware WQ doorbell: status\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg7_total /
+ phba->ktime_status_samples,
+ phba->ktime_seg7_min,
+ phba->ktime_seg7_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 8: Firmware WQ doorbell: status"
+ " -to- MSI-X ISR for status cmpl\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg8_total /
+ phba->ktime_status_samples,
+ phba->ktime_seg8_min,
+ phba->ktime_seg8_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Segment 9: MSI-X ISR for status cmpl "
+ "-to- NVME layer passed status done\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg9_total /
+ phba->ktime_status_samples,
+ phba->ktime_seg9_min,
+ phba->ktime_seg9_max);
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "Total: cmd received by MSI-X ISR -to- "
+ "cmd completed on wire\n");
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "avg:%08lld min:%08lld max %08lld\n",
+ phba->ktime_seg10_total /
+ phba->ktime_status_samples,
+ phba->ktime_seg10_min,
+ phba->ktime_seg10_max);
return len;
}
@@ -844,7 +1048,9 @@ lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
int i;
int len = 0;
uint32_t tot_xmt = 0;
+ uint32_t tot_rcv = 0;
uint32_t tot_cmpl = 0;
+ uint32_t tot_ccmpl = 0;
if (phba->nvmet_support == 0) {
/* NVME Initiator */
@@ -868,6 +1074,33 @@ lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
return len;
}
+ /* NVME Target */
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "CPUcheck %s ",
+ (phba->cpucheck_on & LPFC_CHECK_NVMET_IO ?
+ "IO Enabled - " : "IO Disabled - "));
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "%s\n",
+ (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ?
+ "Rcv Enabled\n" : "Rcv Disabled\n"));
+ for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
+ if (i >= LPFC_CHECK_CPU_CNT)
+ break;
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "%02d: xmit x%08x ccmpl x%08x "
+ "cmpl x%08x rcv x%08x\n",
+ i, phba->cpucheck_xmt_io[i],
+ phba->cpucheck_ccmpl_io[i],
+ phba->cpucheck_cmpl_io[i],
+ phba->cpucheck_rcv_io[i]);
+ tot_xmt += phba->cpucheck_xmt_io[i];
+ tot_rcv += phba->cpucheck_rcv_io[i];
+ tot_cmpl += phba->cpucheck_cmpl_io[i];
+ tot_ccmpl += phba->cpucheck_ccmpl_io[i];
+ }
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "tot:xmit x%08x ccmpl x%08x cmpl x%08x rcv x%08x\n",
+ tot_xmt, tot_ccmpl, tot_cmpl, tot_rcv);
return len;
}
@@ -1531,6 +1764,65 @@ lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file)
return rc;
}
+static ssize_t
+lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_nvmet_tgtport *tgtp;
+ char mybuf[64];
+ char *pbuf;
+
+ if (!phba->targetport)
+ return -ENXIO;
+
+ if (nbytes > 64)
+ nbytes = 64;
+
+ /* Protect copy from user */
+ if (!access_ok(VERIFY_READ, buf, nbytes))
+ return -EFAULT;
+
+ memset(mybuf, 0, sizeof(mybuf));
+
+ if (copy_from_user(mybuf, buf, nbytes))
+ return -EFAULT;
+ pbuf = &mybuf[0];
+
+ tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
+ if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
+ (strncmp(pbuf, "zero", strlen("zero")) == 0)) {
+ atomic_set(&tgtp->rcv_ls_req_in, 0);
+ atomic_set(&tgtp->rcv_ls_req_out, 0);
+ atomic_set(&tgtp->rcv_ls_req_drop, 0);
+ atomic_set(&tgtp->xmt_ls_abort, 0);
+ atomic_set(&tgtp->xmt_ls_rsp, 0);
+ atomic_set(&tgtp->xmt_ls_drop, 0);
+ atomic_set(&tgtp->xmt_ls_rsp_error, 0);
+ atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
+
+ atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
+ atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
+ atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
+ atomic_set(&tgtp->xmt_fcp_abort, 0);
+ atomic_set(&tgtp->xmt_fcp_drop, 0);
+ atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
+ atomic_set(&tgtp->xmt_fcp_read, 0);
+ atomic_set(&tgtp->xmt_fcp_write, 0);
+ atomic_set(&tgtp->xmt_fcp_rsp, 0);
+ atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
+ atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
+ atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
+
+ atomic_set(&tgtp->xmt_abort_rsp, 0);
+ atomic_set(&tgtp->xmt_abort_rsp_error, 0);
+ atomic_set(&tgtp->xmt_abort_cmpl, 0);
+ }
+ return nbytes;
+}
+
static int
lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file)
{
@@ -1716,7 +2008,10 @@ lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf,
pbuf = &mybuf[0];
if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
- phba->cpucheck_on |= LPFC_CHECK_NVME_IO;
+ if (phba->nvmet_support)
+ phba->cpucheck_on |= LPFC_CHECK_NVMET_IO;
+ else
+ phba->cpucheck_on |= LPFC_CHECK_NVME_IO;
return strlen(pbuf);
} else if ((strncmp(pbuf, "rcv",
sizeof("rcv") - 1) == 0)) {
@@ -2688,7 +2983,10 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
goto fcp_wq;
}
- numwq = phba->cfg_nvme_max_hw_queue;
+ if (phba->nvmet_support)
+ numwq = phba->cfg_nvmet_max_hw_queue;
+ else
+ numwq = phba->cfg_nvme_max_hw_queue;
/* Fast-path NVME WQ */
if (x < numwq) {
@@ -2723,6 +3021,88 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
goto too_big;
}
+ if ((x < phba->cfg_nvmet_mrq) &&
+ phba->sli4_hba.nvmet_cqset &&
+ phba->sli4_hba.nvmet_cqset[x]) {
+ /* NVMET CQset */
+ qp = phba->sli4_hba.nvmet_cqset[x];
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tNVMET CQset info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocEQID[%02d]: "
+ "CQ STAT[max:x%x relw:x%x "
+ "xabt:x%x wq:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3,
+ (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tCQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id, qp->entry_count,
+ qp->entry_size, qp->host_index,
+ qp->hba_index);
+
+ /* Reset max counter */
+ qp->CQ_max_cqe = 0;
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
+ if ((x < phba->cfg_nvmet_mrq) &&
+ phba->sli4_hba.nvmet_mrq_data &&
+ phba->sli4_hba.nvmet_mrq_hdr[x] &&
+ phba->sli4_hba.nvmet_mrq_data[x]) {
+ /* RQ header */
+ qp = phba->sli4_hba.nvmet_mrq_hdr[x];
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tNVMET MRQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]: "
+ "MRQ-STAT[nopost:x%x nobuf:x%x "
+ "trunc:x%x rcv:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1, qp->q_cnt_2,
+ qp->q_cnt_3,
+ (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tHQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]\n",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+ /* MRQ data */
+ qp = phba->sli4_hba.nvmet_mrq_data[x];
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tDQID[%02d], "
+ "QE-CNT[%04d], QE-SIZE[%04d], "
+ "HOST-IDX[%04d], PORT-IDX[%04d]",
+ qp->queue_id,
+ qp->entry_count,
+ qp->entry_size,
+ qp->host_index,
+ qp->hba_index);
+
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+ }
+
/* Only EQ 0 has slow path CQs configured */
if (x)
goto out;
@@ -4421,6 +4801,7 @@ static const struct file_operations lpfc_debugfs_op_nvmestat = {
.open = lpfc_debugfs_nvmestat_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
+ .write = lpfc_debugfs_nvmestat_write,
.release = lpfc_debugfs_release,
};
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index 0bf794c..b22918d 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -109,6 +109,170 @@ lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
kfree(ctxp);
}
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+static void
+lpfc_nvmet_ktime(struct lpfc_hba *phba,
+ struct lpfc_nvmet_rcv_ctx *ctxp)
+{
+ uint64_t seg1, seg2, seg3, seg4, seg5;
+ uint64_t seg6, seg7, seg8, seg9, seg10;
+
+ if (!phba->ktime_on)
+ return;
+
+ if (!ctxp->ts_isr_cmd || !ctxp->ts_cmd_nvme ||
+ !ctxp->ts_nvme_data || !ctxp->ts_data_wqput ||
+ !ctxp->ts_isr_data || !ctxp->ts_data_nvme ||
+ !ctxp->ts_nvme_status || !ctxp->ts_status_wqput ||
+ !ctxp->ts_isr_status || !ctxp->ts_status_nvme)
+ return;
+
+ if (ctxp->ts_isr_cmd > ctxp->ts_cmd_nvme)
+ return;
+ if (ctxp->ts_cmd_nvme > ctxp->ts_nvme_data)
+ return;
+ if (ctxp->ts_nvme_data > ctxp->ts_data_wqput)
+ return;
+ if (ctxp->ts_data_wqput > ctxp->ts_isr_data)
+ return;
+ if (ctxp->ts_isr_data > ctxp->ts_data_nvme)
+ return;
+ if (ctxp->ts_data_nvme > ctxp->ts_nvme_status)
+ return;
+ if (ctxp->ts_nvme_status > ctxp->ts_status_wqput)
+ return;
+ if (ctxp->ts_status_wqput > ctxp->ts_isr_status)
+ return;
+ if (ctxp->ts_isr_status > ctxp->ts_status_nvme)
+ return;
+ /*
+ * Segment 1 - Time from FCP command received by MSI-X ISR
+ * to FCP command is passed to NVME Layer.
+ * Segment 2 - Time from FCP command payload handed
+ * off to NVME Layer to Driver receives a Command op
+ * from NVME Layer.
+ * Segment 3 - Time from Driver receives a Command op
+ * from NVME Layer to Command is put on WQ.
+ * Segment 4 - Time from Driver WQ put is done
+ * to MSI-X ISR for Command cmpl.
+ * Segment 5 - Time from MSI-X ISR for Command cmpl to
+ * Command cmpl is passed to NVME Layer.
+ * Segment 6 - Time from Command cmpl is passed to NVME
+ * Layer to Driver receives a RSP op from NVME Layer.
+ * Segment 7 - Time from Driver receives a RSP op from
+ * NVME Layer to WQ put is done on TRSP FCP Status.
+ * Segment 8 - Time from Driver WQ put is done on TRSP
+ * FCP Status to MSI-X ISR for TRSP cmpl.
+ * Segment 9 - Time from MSI-X ISR for TRSP cmpl to
+ * TRSP cmpl is passed to NVME Layer.
+ * Segment 10 - Time from FCP command received by
+ * MSI-X ISR to command is completed on wire.
+ * (Segments 1 thru 8) for READDATA / WRITEDATA
+ * (Segments 1 thru 4) for READDATA_RSP
+ */
+ seg1 = ctxp->ts_cmd_nvme - ctxp->ts_isr_cmd;
+ seg2 = (ctxp->ts_nvme_data - ctxp->ts_isr_cmd) - seg1;
+ seg3 = (ctxp->ts_data_wqput - ctxp->ts_isr_cmd) -
+ seg1 - seg2;
+ seg4 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd) -
+ seg1 - seg2 - seg3;
+ seg5 = (ctxp->ts_data_nvme - ctxp->ts_isr_cmd) -
+ seg1 - seg2 - seg3 - seg4;
+
+ /* For auto rsp commands seg6 thru seg10 will be 0 */
+ if (ctxp->ts_nvme_status > ctxp->ts_data_nvme) {
+ seg6 = (ctxp->ts_nvme_status -
+ ctxp->ts_isr_cmd) -
+ seg1 - seg2 - seg3 - seg4 - seg5;
+ seg7 = (ctxp->ts_status_wqput -
+ ctxp->ts_isr_cmd) -
+ seg1 - seg2 - seg3 -
+ seg4 - seg5 - seg6;
+ seg8 = (ctxp->ts_isr_status -
+ ctxp->ts_isr_cmd) -
+ seg1 - seg2 - seg3 - seg4 -
+ seg5 - seg6 - seg7;
+ seg9 = (ctxp->ts_status_nvme -
+ ctxp->ts_isr_cmd) -
+ seg1 - seg2 - seg3 - seg4 -
+ seg5 - seg6 - seg7 - seg8;
+ seg10 = (ctxp->ts_isr_status -
+ ctxp->ts_isr_cmd);
+ } else {
+ seg6 = 0;
+ seg7 = 0;
+ seg8 = 0;
+ seg9 = 0;
+ seg10 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd);
+ }
+
+ phba->ktime_seg1_total += seg1;
+ if (seg1 < phba->ktime_seg1_min)
+ phba->ktime_seg1_min = seg1;
+ else if (seg1 > phba->ktime_seg1_max)
+ phba->ktime_seg1_max = seg1;
+
+ phba->ktime_seg2_total += seg2;
+ if (seg2 < phba->ktime_seg2_min)
+ phba->ktime_seg2_min = seg2;
+ else if (seg2 > phba->ktime_seg2_max)
+ phba->ktime_seg2_max = seg2;
+
+ phba->ktime_seg3_total += seg3;
+ if (seg3 < phba->ktime_seg3_min)
+ phba->ktime_seg3_min = seg3;
+ else if (seg3 > phba->ktime_seg3_max)
+ phba->ktime_seg3_max = seg3;
+
+ phba->ktime_seg4_total += seg4;
+ if (seg4 < phba->ktime_seg4_min)
+ phba->ktime_seg4_min = seg4;
+ else if (seg4 > phba->ktime_seg4_max)
+ phba->ktime_seg4_max = seg4;
+
+ phba->ktime_seg5_total += seg5;
+ if (seg5 < phba->ktime_seg5_min)
+ phba->ktime_seg5_min = seg5;
+ else if (seg5 > phba->ktime_seg5_max)
+ phba->ktime_seg5_max = seg5;
+
+ phba->ktime_data_samples++;
+ if (!seg6)
+ goto out;
+
+ phba->ktime_seg6_total += seg6;
+ if (seg6 < phba->ktime_seg6_min)
+ phba->ktime_seg6_min = seg6;
+ else if (seg6 > phba->ktime_seg6_max)
+ phba->ktime_seg6_max = seg6;
+
+ phba->ktime_seg7_total += seg7;
+ if (seg7 < phba->ktime_seg7_min)
+ phba->ktime_seg7_min = seg7;
+ else if (seg7 > phba->ktime_seg7_max)
+ phba->ktime_seg7_max = seg7;
+
+ phba->ktime_seg8_total += seg8;
+ if (seg8 < phba->ktime_seg8_min)
+ phba->ktime_seg8_min = seg8;
+ else if (seg8 > phba->ktime_seg8_max)
+ phba->ktime_seg8_max = seg8;
+
+ phba->ktime_seg9_total += seg9;
+ if (seg9 < phba->ktime_seg9_min)
+ phba->ktime_seg9_min = seg9;
+ else if (seg9 > phba->ktime_seg9_max)
+ phba->ktime_seg9_max = seg9;
+out:
+ phba->ktime_seg10_total += seg10;
+ if (seg10 < phba->ktime_seg10_min)
+ phba->ktime_seg10_min = seg10;
+ else if (seg10 > phba->ktime_seg10_max)
+ phba->ktime_seg10_max = seg10;
+ phba->ktime_status_samples++;
+}
+#endif
+
/**
* lpfc_nvmet_xmt_fcp_op_cmp - Completion handler for FCP Response
* @phba: Pointer to HBA context object.
@@ -127,6 +291,9 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct nvmefc_tgt_fcp_req *rsp;
struct lpfc_nvmet_rcv_ctx *ctxp;
uint32_t status, result, op, start_clean;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint32_t id;
+#endif
ctxp = cmdwqe->context2;
rsp = &ctxp->ctx.fcp_req;
@@ -164,7 +331,44 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
/* Sanity check */
ctxp->state = LPFC_NVMET_STE_DONE;
ctxp->entry_cnt++;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on) {
+ if (rsp->op == NVMET_FCOP_READDATA_RSP) {
+ ctxp->ts_isr_data =
+ cmdwqe->isr_timestamp;
+ ctxp->ts_data_nvme =
+ ktime_get_ns();
+ ctxp->ts_nvme_status =
+ ctxp->ts_data_nvme;
+ ctxp->ts_status_wqput =
+ ctxp->ts_data_nvme;
+ ctxp->ts_isr_status =
+ ctxp->ts_data_nvme;
+ ctxp->ts_status_nvme =
+ ctxp->ts_data_nvme;
+ } else {
+ ctxp->ts_isr_status =
+ cmdwqe->isr_timestamp;
+ ctxp->ts_status_nvme =
+ ktime_get_ns();
+ }
+ }
+ if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
+ id = smp_processor_id();
+ if (ctxp->cpu != id)
+ lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
+ "6703 CPU Check cmpl: "
+ "cpu %d expect %d\n",
+ id, ctxp->cpu);
+ if (ctxp->cpu < LPFC_CHECK_CPU_CNT)
+ phba->cpucheck_cmpl_io[id]++;
+ }
+#endif
rsp->done(rsp);
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on)
+ lpfc_nvmet_ktime(phba, ctxp);
+#endif
lpfc_rq_buf_free(phba, &ctxp->rqb_buffer->hbuf);
} else {
/* Sanity check */
@@ -178,6 +382,22 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
start_clean = offsetof(struct lpfc_iocbq, wqe);
memset(((char *)cmdwqe) + start_clean, 0,
(sizeof(struct lpfc_iocbq) - start_clean));
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on) {
+ ctxp->ts_isr_data = cmdwqe->isr_timestamp;
+ ctxp->ts_data_nvme = ktime_get_ns();
+ }
+ if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
+ id = smp_processor_id();
+ if (ctxp->cpu != id)
+ lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
+ "6704 CPU Check cmdcmpl: "
+ "cpu %d expect %d\n",
+ id, ctxp->cpu);
+ if (ctxp->cpu < LPFC_CHECK_CPU_CNT)
+ phba->cpucheck_ccmpl_io[id]++;
+ }
+#endif
rsp->done(rsp);
}
}
@@ -255,7 +475,29 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
struct lpfc_hba *phba = ctxp->phba;
struct lpfc_iocbq *nvmewqeq;
unsigned long iflags;
- int rc;
+ int rc, id;
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on) {
+ if (rsp->op == NVMET_FCOP_RSP)
+ ctxp->ts_nvme_status = ktime_get_ns();
+ else
+ ctxp->ts_nvme_data = ktime_get_ns();
+ }
+ if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
+ id = smp_processor_id();
+ ctxp->cpu = id;
+ if (id < LPFC_CHECK_CPU_CNT)
+ phba->cpucheck_xmt_io[id]++;
+ if (rsp->hwqid != id) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
+ "6705 CPU Check OP: "
+ "cpu %d expect %d\n",
+ id, rsp->hwqid);
+ ctxp->cpu = rsp->hwqid;
+ }
+ }
+#endif
if (rsp->op == NVMET_FCOP_ABORT) {
/* Sanity checks.
@@ -302,8 +544,17 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
spin_lock_irqsave(&phba->hbalock, iflags);
rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, nvmewqeq);
spin_unlock_irqrestore(&phba->hbalock, iflags);
- if (rc == WQE_SUCCESS)
+ if (rc == WQE_SUCCESS) {
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (!phba->ktime_on)
+ return 0;
+ if (rsp->op == NVMET_FCOP_RSP)
+ ctxp->ts_status_wqput = ktime_get_ns();
+ else
+ ctxp->ts_data_wqput = ktime_get_ns();
+#endif
return 0;
+ }
/* Give back resources */
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
@@ -551,6 +802,9 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
struct fc_frame_header *fc_hdr;
uint32_t *payload;
uint32_t size, oxid, sid, rc;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint32_t id;
+#endif
oxid = 0;
if (!nvmebuf || !phba->targetport) {
@@ -587,6 +841,27 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
ctxp->rqb_buffer = nvmebuf;
ctxp->entry_cnt = 1;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on) {
+ ctxp->ts_isr_cmd = isr_timestamp;
+ ctxp->ts_cmd_nvme = ktime_get_ns();
+ ctxp->ts_nvme_data = 0;
+ ctxp->ts_data_wqput = 0;
+ ctxp->ts_isr_data = 0;
+ ctxp->ts_data_nvme = 0;
+ ctxp->ts_nvme_status = 0;
+ ctxp->ts_status_wqput = 0;
+ ctxp->ts_isr_status = 0;
+ ctxp->ts_status_nvme = 0;
+ }
+
+ if (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV) {
+ id = smp_processor_id();
+ if (id < LPFC_CHECK_CPU_CNT)
+ phba->cpucheck_rcv_io[id]++;
+ }
+#endif
+
atomic_inc(&tgtp->rcv_fcp_cmd_in);
/*
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.h b/drivers/scsi/lpfc/lpfc_nvmet.h
index e74c9c8..1d07bb5 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.h
+++ b/drivers/scsi/lpfc/lpfc_nvmet.h
@@ -93,5 +93,18 @@ struct lpfc_nvmet_rcv_ctx {
#define LPFC_NVMET_STE_RSP 4
#define LPFC_NVMET_STE_DONE 5
struct rqb_dmabuf *rqb_buffer;
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint64_t ts_isr_cmd;
+ uint64_t ts_cmd_nvme;
+ uint64_t ts_nvme_data;
+ uint64_t ts_data_wqput;
+ uint64_t ts_isr_data;
+ uint64_t ts_data_nvme;
+ uint64_t ts_nvme_status;
+ uint64_t ts_status_wqput;
+ uint64_t ts_isr_status;
+ uint64_t ts_status_nvme;
+#endif
};
--
2.5.0
--
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