NVME Initiator: Add debugfs support
Adds debugfs snippets to cover the new NVME initiator functionality
Signed-off-by: Dick Kennedy <dick.kenn...@broadcom.com>
Signed-off-by: James Smart <james.sm...@broadcom.com>
---
drivers/scsi/lpfc/lpfc.h | 48 +++
drivers/scsi/lpfc/lpfc_ct.c | 27 +-
drivers/scsi/lpfc/lpfc_debugfs.c | 775 ++++++++++++++++++++++++++++++++++++++-
drivers/scsi/lpfc/lpfc_debugfs.h | 150 +++++++-
drivers/scsi/lpfc/lpfc_nvme.c | 125 +++++++
drivers/scsi/lpfc/lpfc_nvme.h | 7 +
drivers/scsi/lpfc/lpfc_sli.c | 5 +
7 files changed, 1128 insertions(+), 9 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 1dae886..e2e3313 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -458,6 +458,9 @@ struct lpfc_vport {
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct dentry *debug_disc_trc;
struct dentry *debug_nodelist;
+ struct dentry *debug_nvmestat;
+ struct dentry *debug_nvmektime;
+ struct dentry *debug_cpucheck;
struct dentry *vport_debugfs_root;
struct lpfc_debugfs_trc *disc_trc;
atomic_t disc_trc_cnt;
@@ -1089,6 +1092,51 @@ struct lpfc_hba {
#define LPFC_TRANSGRESSION_LOW_RXPOWER 0x4000
uint16_t sfp_alarm;
uint16_t sfp_warning;
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+#define LPFC_CHECK_CPU_CNT 32
+ uint32_t cpucheck_rcv_io[LPFC_CHECK_CPU_CNT];
+ uint32_t cpucheck_xmt_io[LPFC_CHECK_CPU_CNT];
+ uint32_t cpucheck_cmpl_io[LPFC_CHECK_CPU_CNT];
+ uint32_t cpucheck_ccmpl_io[LPFC_CHECK_CPU_CNT];
+ uint16_t cpucheck_on;
+#define LPFC_CHECK_OFF 0
+#define LPFC_CHECK_NVME_IO 1
+ uint16_t ktime_on;
+ uint64_t ktime_data_samples;
+ uint64_t ktime_status_samples;
+ uint64_t ktime_last_cmd;
+ uint64_t ktime_seg1_total;
+ uint64_t ktime_seg1_min;
+ uint64_t ktime_seg1_max;
+ uint64_t ktime_seg2_total;
+ uint64_t ktime_seg2_min;
+ uint64_t ktime_seg2_max;
+ uint64_t ktime_seg3_total;
+ uint64_t ktime_seg3_min;
+ uint64_t ktime_seg3_max;
+ uint64_t ktime_seg4_total;
+ uint64_t ktime_seg4_min;
+ uint64_t ktime_seg4_max;
+ uint64_t ktime_seg5_total;
+ uint64_t ktime_seg5_min;
+ uint64_t ktime_seg5_max;
+ uint64_t ktime_seg6_total;
+ uint64_t ktime_seg6_min;
+ uint64_t ktime_seg6_max;
+ uint64_t ktime_seg7_total;
+ uint64_t ktime_seg7_min;
+ uint64_t ktime_seg7_max;
+ uint64_t ktime_seg8_total;
+ uint64_t ktime_seg8_min;
+ uint64_t ktime_seg8_max;
+ uint64_t ktime_seg9_total;
+ uint64_t ktime_seg9_min;
+ uint64_t ktime_seg9_max;
+ uint64_t ktime_seg10_total;
+ uint64_t ktime_seg10_min;
+ uint64_t ktime_seg10_max;
+#endif
};
static inline struct Scsi_Host *
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index ed285fc..6aba862 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -465,6 +465,10 @@ lpfc_prep_node_fc4type(struct lpfc_vport *vport, uint32_t
Did, uint8_t fc4_type)
ndlp = lpfc_setup_disc_node(vport, Did);
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
+ "Parse GID_FTrsp: did:x%x flg:x%x x%x",
+ Did, ndlp->nlp_flag, vport->fc_flag);
+
/* By default, the driver expects to support FCP FC4 */
if (fc4_type == FC_TYPE_FCP)
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
@@ -478,16 +482,24 @@ lpfc_prep_node_fc4type(struct lpfc_vport *vport, uint32_t
Did, uint8_t fc4_type)
ndlp->nlp_flag, ndlp->nlp_fc4_type,
vport->fc_flag,
vport->fc_rscn_id_cnt);
- } else
+ } else {
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
+ "Skip1 GID_FTrsp: did:x%x flg:x%x cnt:%d",
+ Did, vport->fc_flag, vport->fc_rscn_id_cnt);
+
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0239 Skip x%06x NameServer Rsp "
"Data: x%x x%x\n", Did,
vport->fc_flag,
vport->fc_rscn_id_cnt);
-
+ }
} else {
if (!(vport->fc_flag & FC_RSCN_MODE) ||
lpfc_rscn_payload_check(vport, Did)) {
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
+ "Query GID_FTrsp: did:x%x flg:x%x cnt:%d",
+ Did, vport->fc_flag, vport->fc_rscn_id_cnt);
+
/*
* This NPortID was previously a FCP target,
* Don't even bother to send GFF_ID.
@@ -509,12 +521,17 @@ lpfc_prep_node_fc4type(struct lpfc_vport *vport, uint32_t
Did, uint8_t fc4_type)
else
lpfc_setup_disc_node(vport, Did);
}
- } else
+ } else {
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
+ "Skip2 GID_FTrsp: did:x%x flg:x%x cnt:%d",
+ Did, vport->fc_flag, vport->fc_rscn_id_cnt);
+
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0245 Skip x%06x NameServer Rsp "
"Data: x%x x%x\n", Did,
vport->fc_flag,
vport->fc_rscn_id_cnt);
+ }
}
}
@@ -892,6 +909,10 @@ lpfc_cmpl_ct_cmd_gft_id(struct lpfc_hba *phba, struct
lpfc_iocbq *cmdiocb,
did = ((struct lpfc_sli_ct_request *)inp->virt)->un.gft.PortId;
did = be32_to_cpu(did);
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
+ "GFT_ID cmpl: status:x%x/x%x did:x%x",
+ irsp->ulpStatus, irsp->un.ulpWord[4], did);
+
if (irsp->ulpStatus == IOSTAT_SUCCESS) {
/* Good status, continue checking */
CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index a94ba2d..bbcb607 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -34,6 +34,9 @@
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fs.h>
+
+#include <linux/nvme-fc-driver.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
@@ -41,8 +44,9 @@
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
-#include "lpfc_scsi.h"
#include "lpfc.h"
+#include "lpfc_scsi.h"
+#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
@@ -535,6 +539,10 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char
*buf, int size)
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
unsigned char *statep;
+ struct nvme_fc_local_port *localport;
+ struct lpfc_nvme_lport *lport;
+ struct lpfc_nvme_rport *rport;
+ struct nvme_fc_remote_port *nrport;
cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
@@ -612,6 +620,255 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char
*buf, int size)
}
spin_unlock_irq(shost->host_lock);
+ len += snprintf(buf+len, size-len, "\nNVME Lport/Rport Entries ...\n");
+
+ localport = vport->localport;
+ if (!localport)
+ goto out_exit;
+
+ spin_lock_irq(shost->host_lock);
+ lport = (struct lpfc_nvme_lport *)localport->private;
+
+ /* Port state is only one of two values for now. */
+ if (localport->port_id)
+ statep = "ONLINE";
+ else
+ statep = "UNKNOWN ";
+
+ len += snprintf(buf+len, size-len,
+ "Lport DID x%06x PortState %s\n",
+ localport->port_id, statep);
+
+ len += snprintf(buf+len, size-len, "\tRport List:\n");
+ list_for_each_entry(rport, &lport->rport_list, list) {
+ /* local short-hand pointer. */
+ nrport = rport->remoteport;
+
+ /* Port state is only one of two values for now. */
+ switch (nrport->port_state) {
+ case FC_OBJSTATE_ONLINE:
+ statep = "ONLINE";
+ break;
+ case FC_OBJSTATE_UNKNOWN:
+ statep = "UNKNOWN ";
+ break;
+ default:
+ statep = "UNSUPPORTED";
+ break;
+ }
+
+ /* Tab in to show lport ownership. */
+ len += snprintf(buf+len, size-len,
+ "\t%s Port ID:x%06x ",
+ statep, nrport->port_id);
+ len += snprintf(buf+len, size-len, "WWPN x%llx ",
+ nrport->port_name);
+ len += snprintf(buf+len, size-len, "WWNN x%llx ",
+ nrport->node_name);
+ switch (nrport->port_role) {
+ case FC_PORT_ROLE_NVME_INITIATOR:
+ len += snprintf(buf+len, size-len,
+ "NVME INITIATOR ");
+ break;
+ case FC_PORT_ROLE_NVME_TARGET:
+ len += snprintf(buf+len, size-len,
+ "NVME TARGET ");
+ break;
+ case FC_PORT_ROLE_NVME_DISCOVERY:
+ len += snprintf(buf+len, size-len,
+ "NVME DISCOVERY ");
+ break;
+ default:
+ len += snprintf(buf+len, size-len,
+ "UNKNOWN ROLE x%x",
+ nrport->port_role);
+ break;
+ }
+
+ /* Terminate the string. */
+ len += snprintf(buf+len, size-len, "\n");
+ }
+
+ spin_unlock_irq(shost->host_lock);
+ out_exit:
+ return len;
+}
+
+/**
+ * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the NVME statistics associated with @vport
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
+{
+ struct lpfc_hba *phba = vport->phba;
+ int len = 0;
+
+ if (phba->nvmet_support == 0) {
+ if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
+ return len;
+
+ len += snprintf(buf+len, size-len,
+ "\nNVME Lport Statistics\n");
+
+ len += snprintf(buf+len, size-len,
+ "LS: Xmt %016llx Cmpl %016llx\n",
+ phba->fc4NvmeLsRequests,
+ phba->fc4NvmeLsCmpls);
+
+ len += snprintf(buf+len, size-len,
+ "FCP: Rd %016llx Wr %016llx IO %016llx\n",
+ phba->fc4NvmeInputRequests,
+ phba->fc4NvmeOutputRequests,
+ phba->fc4NvmeControlRequests);
+
+ len += snprintf(buf+len, size-len,
+ " Cmpl %016llx\n", phba->fc4NvmeIoCmpls);
+ }
+
+ return len;
+}
+
+
+/**
+ * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the NVME statistics associated with @vport
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
+{
+ struct lpfc_hba *phba = vport->phba;
+ int len = 0;
+
+ if (phba->nvmet_support == 0) {
+ /* NVME Initiator */
+ len += snprintf(buf + len, PAGE_SIZE-len,
+ "ktime %s: Total Samples: %lld\n",
+ (phba->ktime_on ? "Enabled" : "Disabled"),
+ phba->ktime_data_samples);
+ if (phba->ktime_data_samples == 0)
+ return len;
+
+ len += snprintf(
+ buf + len, PAGE_SIZE-len,
+ "Segment 1: Last NVME Cmd cmpl "
+ "done -to- Start of next NVME cnd (in driver)\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: Driver start of NVME cmd "
+ "-to- Firmware WQ doorbell\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: Firmware WQ doorbell -to- "
+ "MSI-X ISR cmpl\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: MSI-X ISR cmpl -to- "
+ "NVME cmpl done\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,
+ "Total IO avg time: %08lld\n",
+ ((phba->ktime_seg1_total +
+ phba->ktime_seg2_total +
+ phba->ktime_seg3_total +
+ phba->ktime_seg4_total) /
+ phba->ktime_data_samples));
+ return len;
+ }
+
+ return len;
+}
+
+/**
+ * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the NVME statistics associated with @vport
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
+{
+ struct lpfc_hba *phba = vport->phba;
+ int i;
+ int len = 0;
+ uint32_t tot_xmt = 0;
+ uint32_t tot_cmpl = 0;
+
+ if (phba->nvmet_support == 0) {
+ /* NVME Initiator */
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "CPUcheck %s\n",
+ (phba->cpucheck_on & LPFC_CHECK_NVME_IO ?
+ "Enabled" : "Disabled"));
+ 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 cmpl x%08x\n",
+ i, phba->cpucheck_xmt_io[i],
+ phba->cpucheck_cmpl_io[i]);
+ tot_xmt += phba->cpucheck_xmt_io[i];
+ tot_cmpl += phba->cpucheck_cmpl_io[i];
+ }
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "tot:xmit x%08x cmpl x%08x\n",
+ tot_xmt, tot_cmpl);
+ return len;
+ }
+
return len;
}
@@ -1245,6 +1502,245 @@ lpfc_debugfs_dumpDataDif_release(struct inode *inode,
struct file *file)
return 0;
}
+
+static int
+lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_vport *vport = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer,
+ LPFC_NVMESTAT_SIZE);
+
+ debug->i_private = inode->i_private;
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static int
+lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_vport *vport = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer,
+ LPFC_NVMEKTIME_SIZE);
+
+ debug->i_private = inode->i_private;
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static ssize_t
+lpfc_debugfs_nvmektime_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;
+ char mybuf[64];
+ char *pbuf;
+
+ 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];
+
+ if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
+ phba->ktime_data_samples = 0;
+ phba->ktime_status_samples = 0;
+ phba->ktime_seg1_total = 0;
+ phba->ktime_seg1_max = 0;
+ phba->ktime_seg1_min = 0xffffffff;
+ phba->ktime_seg2_total = 0;
+ phba->ktime_seg2_max = 0;
+ phba->ktime_seg2_min = 0xffffffff;
+ phba->ktime_seg3_total = 0;
+ phba->ktime_seg3_max = 0;
+ phba->ktime_seg3_min = 0xffffffff;
+ phba->ktime_seg4_total = 0;
+ phba->ktime_seg4_max = 0;
+ phba->ktime_seg4_min = 0xffffffff;
+ phba->ktime_seg5_total = 0;
+ phba->ktime_seg5_max = 0;
+ phba->ktime_seg5_min = 0xffffffff;
+ phba->ktime_seg6_total = 0;
+ phba->ktime_seg6_max = 0;
+ phba->ktime_seg6_min = 0xffffffff;
+ phba->ktime_seg7_total = 0;
+ phba->ktime_seg7_max = 0;
+ phba->ktime_seg7_min = 0xffffffff;
+ phba->ktime_seg8_total = 0;
+ phba->ktime_seg8_max = 0;
+ phba->ktime_seg8_min = 0xffffffff;
+ phba->ktime_seg9_total = 0;
+ phba->ktime_seg9_max = 0;
+ phba->ktime_seg9_min = 0xffffffff;
+ phba->ktime_seg10_total = 0;
+ phba->ktime_seg10_max = 0;
+ phba->ktime_seg10_min = 0xffffffff;
+
+ phba->ktime_on = 1;
+ return strlen(pbuf);
+ } else if ((strncmp(pbuf, "off",
+ sizeof("off") - 1) == 0)) {
+ phba->ktime_on = 0;
+ return strlen(pbuf);
+ } else if ((strncmp(pbuf, "zero",
+ sizeof("zero") - 1) == 0)) {
+ phba->ktime_data_samples = 0;
+ phba->ktime_status_samples = 0;
+ phba->ktime_seg1_total = 0;
+ phba->ktime_seg1_max = 0;
+ phba->ktime_seg1_min = 0xffffffff;
+ phba->ktime_seg2_total = 0;
+ phba->ktime_seg2_max = 0;
+ phba->ktime_seg2_min = 0xffffffff;
+ phba->ktime_seg3_total = 0;
+ phba->ktime_seg3_max = 0;
+ phba->ktime_seg3_min = 0xffffffff;
+ phba->ktime_seg4_total = 0;
+ phba->ktime_seg4_max = 0;
+ phba->ktime_seg4_min = 0xffffffff;
+ phba->ktime_seg5_total = 0;
+ phba->ktime_seg5_max = 0;
+ phba->ktime_seg5_min = 0xffffffff;
+ phba->ktime_seg6_total = 0;
+ phba->ktime_seg6_max = 0;
+ phba->ktime_seg6_min = 0xffffffff;
+ phba->ktime_seg7_total = 0;
+ phba->ktime_seg7_max = 0;
+ phba->ktime_seg7_min = 0xffffffff;
+ phba->ktime_seg8_total = 0;
+ phba->ktime_seg8_max = 0;
+ phba->ktime_seg8_min = 0xffffffff;
+ phba->ktime_seg9_total = 0;
+ phba->ktime_seg9_max = 0;
+ phba->ktime_seg9_min = 0xffffffff;
+ phba->ktime_seg10_total = 0;
+ phba->ktime_seg10_max = 0;
+ phba->ktime_seg10_min = 0xffffffff;
+ return strlen(pbuf);
+ }
+ return -EINVAL;
+}
+
+static int
+lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_vport *vport = inode->i_private;
+ struct lpfc_debug *debug;
+ int rc = -ENOMEM;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ goto out;
+
+ /* Round to page boundary */
+ debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL);
+ if (!debug->buffer) {
+ kfree(debug);
+ goto out;
+ }
+
+ debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer,
+ LPFC_NVMEKTIME_SIZE);
+
+ debug->i_private = inode->i_private;
+ file->private_data = debug;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static ssize_t
+lpfc_debugfs_cpucheck_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;
+ char mybuf[64];
+ char *pbuf;
+ int i;
+
+ 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];
+
+ if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
+ phba->cpucheck_on |= LPFC_CHECK_NVME_IO;
+ return strlen(pbuf);
+ } else if ((strncmp(pbuf, "rcv",
+ sizeof("rcv") - 1) == 0)) {
+ return -EINVAL;
+ } else if ((strncmp(pbuf, "off",
+ sizeof("off") - 1) == 0)) {
+ phba->cpucheck_on = LPFC_CHECK_OFF;
+ return strlen(pbuf);
+ } else if ((strncmp(pbuf, "zero",
+ sizeof("zero") - 1) == 0)) {
+ for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
+ if (i >= LPFC_CHECK_CPU_CNT)
+ break;
+ phba->cpucheck_rcv_io[i] = 0;
+ phba->cpucheck_xmt_io[i] = 0;
+ phba->cpucheck_cmpl_io[i] = 0;
+ phba->cpucheck_ccmpl_io[i] = 0;
+ }
+ return strlen(pbuf);
+ }
+ return -EINVAL;
+}
+
/*
* ---------------------------------
* iDiag debugfs file access methods
@@ -2016,8 +2512,8 @@ lpfc_idiag_queinfo_read(struct file *file, char __user
*buf, size_t nbytes,
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
int len = 0;
char *pbuffer;
- int x, cnt;
- int fcpx;
+ int x, cnt, numwq;
+ int fcpx, nvmex;
int max_cnt, io_channel;
struct lpfc_queue *qp = NULL;
@@ -2117,6 +2613,40 @@ lpfc_idiag_queinfo_read(struct file *file, char __user
*buf, size_t nbytes,
goto too_big;
}
+ if (x < phba->cfg_nvme_io_channel) {
+ /* Fast-path NVME CQ */
+ qp = phba->sli4_hba.nvme_cq[x];
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tNVME CQ 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;
+ }
+
/* Fast-path FCP WQ */
if (x < phba->cfg_fcp_io_channel) {
fcpx = x;
@@ -2155,6 +2685,41 @@ lpfc_idiag_queinfo_read(struct file *file, char __user
*buf, size_t nbytes,
goto fcp_wq;
}
+ numwq = phba->cfg_nvme_max_hw_queue;
+
+ /* Fast-path NVME WQ */
+ if (x < numwq) {
+ nvmex = x;
+ qp = phba->sli4_hba.nvme_wq[nvmex];
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tNVME WQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]: "
+ "WQ-STAT[oflow:x%x posted:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1,
+ (unsigned long long)
+ qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tWQID[%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");
+ if (len >= max_cnt)
+ goto too_big;
+ }
+
/* Only EQ 0 has slow path CQs configured */
if (x)
goto out;
@@ -2214,6 +2779,66 @@ lpfc_idiag_queinfo_read(struct file *file, char __user
*buf, size_t nbytes,
goto too_big;
}
+ /* NVME LS response CQ */
+ qp = phba->sli4_hba.nvmels_cq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tNVME LS CQ 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;
+ }
+
+ /* NVME LS WQ */
+ qp = phba->sli4_hba.nvmels_wq;
+ if (qp) {
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tNVME LS WQ info: ");
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "AssocCQID[%02d]: "
+ "WQ-STAT[oflow:x%x posted:x%llx]\n",
+ qp->assoc_qid,
+ qp->q_cnt_1,
+ (unsigned long long)qp->q_cnt_4);
+ len += snprintf(pbuffer+len,
+ LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tWQID[%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");
+ if (len >= max_cnt)
+ goto too_big;
+ }
/* Slow-path ELS response CQ */
qp = phba->sli4_hba.els_cq;
if (qp) {
@@ -2675,6 +3300,17 @@ lpfc_idiag_queacc_write(struct file *file, const char
__user *buf,
idiag.ptr_private = phba->sli4_hba.els_cq;
goto pass_check;
}
+ /* NVME LS complete queue */
+ if (phba->sli4_hba.nvmels_cq &&
+ phba->sli4_hba.nvmels_cq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.nvmels_cq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.nvmels_cq;
+ goto pass_check;
+ }
/* FCP complete queue */
if (phba->sli4_hba.fcp_cq) {
qidx = 0;
@@ -2694,6 +3330,25 @@ lpfc_idiag_queacc_write(struct file *file, const char
__user *buf,
}
} while (++qidx < phba->cfg_fcp_io_channel);
}
+ /* NVME complete queue */
+ if (phba->sli4_hba.nvme_cq) {
+ qidx = 0;
+ do {
+ if (phba->sli4_hba.nvme_cq[qidx] &&
+ phba->sli4_hba.nvme_cq[qidx]->queue_id ==
+ queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.nvme_cq[qidx],
+ index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private =
+ phba->sli4_hba.nvme_cq[qidx];
+ goto pass_check;
+ }
+ } while (++qidx < phba->cfg_nvme_io_channel);
+ }
goto error_out;
break;
case LPFC_IDIAG_MQ:
@@ -2722,6 +3377,17 @@ lpfc_idiag_queacc_write(struct file *file, const char
__user *buf,
idiag.ptr_private = phba->sli4_hba.els_wq;
goto pass_check;
}
+ /* NVME LS work queue */
+ if (phba->sli4_hba.nvmels_wq &&
+ phba->sli4_hba.nvmels_wq->queue_id == queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.nvmels_wq, index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private = phba->sli4_hba.nvmels_wq;
+ goto pass_check;
+ }
/* FCP work queue */
if (phba->sli4_hba.fcp_wq) {
for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
@@ -2742,6 +3408,27 @@ lpfc_idiag_queacc_write(struct file *file, const char
__user *buf,
}
}
}
+
+ /* NVME work queues */
+ if (phba->sli4_hba.nvme_wq) {
+ for (qidx = 0; qidx < phba->cfg_nvme_io_channel;
+ qidx++) {
+ if (!phba->sli4_hba.nvme_wq[qidx])
+ continue;
+ if (phba->sli4_hba.nvme_wq[qidx]->queue_id ==
+ queid) {
+ /* Sanity check */
+ rc = lpfc_idiag_que_param_check(
+ phba->sli4_hba.nvme_wq[qidx],
+ index, count);
+ if (rc)
+ goto error_out;
+ idiag.ptr_private =
+ phba->sli4_hba.nvme_wq[qidx];
+ goto pass_check;
+ }
+ }
+ }
goto error_out;
break;
case LPFC_IDIAG_RQ:
@@ -3725,6 +4412,35 @@ static const struct file_operations
lpfc_debugfs_op_dumpHostSlim = {
.release = lpfc_debugfs_release,
};
+#undef lpfc_debugfs_op_nvmestat
+static const struct file_operations lpfc_debugfs_op_nvmestat = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_nvmestat_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_nvmektime
+static const struct file_operations lpfc_debugfs_op_nvmektime = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_nvmektime_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .write = lpfc_debugfs_nvmektime_write,
+ .release = lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_cpucheck
+static const struct file_operations lpfc_debugfs_op_cpucheck = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_cpucheck_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_read,
+ .write = lpfc_debugfs_cpucheck_write,
+ .release = lpfc_debugfs_release,
+};
+
#undef lpfc_debugfs_op_dumpData
static const struct file_operations lpfc_debugfs_op_dumpData = {
.owner = THIS_MODULE,
@@ -4377,6 +5093,39 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
goto debug_failed;
}
+ snprintf(name, sizeof(name), "nvmestat");
+ vport->debug_nvmestat =
+ debugfs_create_file(name, 0644,
+ vport->vport_debugfs_root,
+ vport, &lpfc_debugfs_op_nvmestat);
+ if (!vport->debug_nvmestat) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0811 Cannot create debugfs nvmestat\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "nvmektime");
+ vport->debug_nvmektime =
+ debugfs_create_file(name, 0644,
+ vport->vport_debugfs_root,
+ vport, &lpfc_debugfs_op_nvmektime);
+ if (!vport->debug_nvmektime) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0815 Cannot create debugfs nvmektime\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "cpucheck");
+ vport->debug_cpucheck =
+ debugfs_create_file(name, 0644,
+ vport->vport_debugfs_root,
+ vport, &lpfc_debugfs_op_cpucheck);
+ if (!vport->debug_cpucheck) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0819 Cannot create debugfs cpucheck\n");
+ goto debug_failed;
+ }
+
/*
* The following section is for additional directories/files for the
* physical port.
@@ -4549,6 +5298,18 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport)
debugfs_remove(vport->debug_nodelist); /* nodelist */
vport->debug_nodelist = NULL;
}
+ if (vport->debug_nvmestat) {
+ debugfs_remove(vport->debug_nvmestat); /* nvmestat */
+ vport->debug_nvmestat = NULL;
+ }
+ if (vport->debug_nvmektime) {
+ debugfs_remove(vport->debug_nvmektime); /* nvmektime */
+ vport->debug_nvmektime = NULL;
+ }
+ if (vport->debug_cpucheck) {
+ debugfs_remove(vport->debug_cpucheck); /* cpucheck */
+ vport->debug_cpucheck = NULL;
+ }
if (vport->vport_debugfs_root) {
debugfs_remove(vport->vport_debugfs_root); /* vportX */
vport->vport_debugfs_root = NULL;
@@ -4714,10 +5475,14 @@ lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
*/
lpfc_debug_dump_mbx_wq(phba);
lpfc_debug_dump_els_wq(phba);
+ lpfc_debug_dump_nvmels_wq(phba);
for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
lpfc_debug_dump_wq(phba, idx);
+ for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
+ lpfc_debug_dump_wq(phba, idx);
+
lpfc_debug_dump_hdr_rq(phba);
lpfc_debug_dump_dat_rq(phba);
/*
@@ -4725,10 +5490,14 @@ lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
*/
lpfc_debug_dump_mbx_cq(phba);
lpfc_debug_dump_els_cq(phba);
+ lpfc_debug_dump_nvmels_cq(phba);
for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
lpfc_debug_dump_fcp_cq(phba, idx);
+ for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
+ lpfc_debug_dump_nvme_cq(phba, idx);
+
/*
* Dump Event Queues (EQs)
*/
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h
index 33e733d..8ed1b05 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.h
+++ b/drivers/scsi/lpfc/lpfc_debugfs.h
@@ -42,6 +42,11 @@
/* hbqinfo output buffer size */
#define LPFC_HBQINFO_SIZE 8192
+/* nvmestat output buffer size */
+#define LPFC_NVMESTAT_SIZE 8192
+#define LPFC_NVMEKTIME_SIZE 8192
+#define LPFC_CPUCHECK_SIZE 8192
+
/*
* For SLI4 iDiag debugfs diagnostics tool
*/
@@ -358,7 +363,7 @@ lpfc_debug_dump_q(struct lpfc_queue *q)
}
/**
- * lpfc_debug_dump_wq - dump all entries from the fcp work queue
+ * lpfc_debug_dump_wq - dump all entries from the fcp and nvme work queue
* @phba: Pointer to HBA context object.
* @wqidx: Index to a FCP work queue.
*
@@ -372,12 +377,61 @@ lpfc_debug_dump_wq(struct lpfc_hba *phba, int wqidx)
if (wqidx >= phba->cfg_fcp_io_channel) {
pr_err("WQIDX %d too large for FCP WQ max %d\n",
wqidx, phba->cfg_fcp_io_channel);
- return;
+ goto nvme_wqs;
}
pr_err("FCP WQ: WQ[Idx:%d|Qid:%d]\n",
wqidx, phba->sli4_hba.fcp_wq[wqidx]->queue_id);
lpfc_debug_dump_q(phba->sli4_hba.fcp_wq[wqidx]);
+
+ nvme_wqs:
+ /* sanity check */
+ if (wqidx >= phba->cfg_nvme_io_channel) {
+ pr_err("WQIDX %d too large for NVME WQ max %d\n",
+ wqidx, phba->cfg_nvme_io_channel);
+ return;
+ }
+
+ pr_err("NVME WQ: WQ[Idx:%d|Qid:%d]\n",
+ wqidx, phba->sli4_hba.nvme_wq[wqidx]->queue_id);
+ lpfc_debug_dump_q(phba->sli4_hba.nvme_wq[wqidx]);
+
+}
+
+/**
+ * lpfc_debug_dump_nvme_cq - dump all entries from nvme work queue's cmpl queue
+ * @phba: Pointer to HBA context object.
+ * @nvme_wqidx: Index to a FCP work queue.
+ *
+ * This function dumps all entries from a FCP complete queue which is
+ * associated to the FCP work queue specified by the @nvme_wqidx.
+ **/
+static inline void
+lpfc_debug_dump_nvme_cq(struct lpfc_hba *phba, int nvme_wqidx)
+{
+ int nvme_cqidx, nvme_cqid;
+
+ /* sanity check */
+ if (nvme_wqidx >= phba->cfg_nvme_io_channel)
+ return;
+
+ nvme_cqid = phba->sli4_hba.nvme_wq[nvme_wqidx]->assoc_qid;
+ for (nvme_cqidx = 0; nvme_cqidx < phba->cfg_nvme_io_channel;
+ nvme_cqidx++)
+ if (phba->sli4_hba.nvme_cq[nvme_cqidx]->queue_id == nvme_cqid)
+ break;
+ if (phba->intr_type == MSIX) {
+ if (nvme_cqidx >= phba->cfg_nvme_io_channel)
+ return;
+ } else {
+ if (nvme_cqidx > 0)
+ return;
+ }
+
+ pr_err("NVME CQ: WQ[Idx:%d|Qid%d]->CQ[Idx%d|Qid%d]:\n",
+ nvme_wqidx, phba->sli4_hba.nvme_wq[nvme_wqidx]->queue_id,
+ nvme_cqidx, nvme_cqid);
+ lpfc_debug_dump_q(phba->sli4_hba.nvme_cq[nvme_cqidx]);
}
/**
@@ -432,7 +486,7 @@ lpfc_debug_dump_hba_eq(struct lpfc_hba *phba, int wqidx)
/* Start with FCP Queues. Sanity check the index */
if (wqidx >= phba->cfg_fcp_io_channel)
- return;
+ goto nvme_queues;
cqid = phba->sli4_hba.fcp_wq[wqidx]->assoc_qid;
for (cqidx = 0; cqidx < phba->cfg_fcp_io_channel; cqidx++)
@@ -456,6 +510,34 @@ lpfc_debug_dump_hba_eq(struct lpfc_hba *phba, int wqidx)
wqidx, phba->sli4_hba.fcp_wq[wqidx]->queue_id,
cqidx, cqid, eqidx, eqid);
lpfc_debug_dump_q(qdesc);
+
+ nvme_queues:
+ /* Do the NVME queues now. */
+ if (wqidx >= phba->cfg_nvme_io_channel)
+ return;
+
+ cqid = phba->sli4_hba.nvme_wq[wqidx]->assoc_qid;
+ for (cqidx = 0; cqidx < phba->cfg_nvme_io_channel; cqidx++)
+ if (phba->sli4_hba.nvme_cq[cqidx]->queue_id == cqid)
+ break;
+ if (phba->intr_type == MSIX) {
+ if (cqidx >= phba->io_channel)
+ return;
+ } else {
+ if (cqidx > 0)
+ return;
+ }
+
+ eqidx = cqidx;
+ eqid = phba->sli4_hba.hba_eq[eqidx]->queue_id;
+ qdesc = phba->sli4_hba.hba_eq[eqidx];
+
+ pr_err(
+ "NVME EQ: WQ[Idx:%d|Qid:%d]->CQ[Idx:%d|Qid:%d]->"
+ "EQ[Idx:%d|Qid:%d]\n",
+ wqidx, phba->sli4_hba.nvme_wq[wqidx]->queue_id,
+ cqidx, cqid, eqidx, eqid);
+ lpfc_debug_dump_q(qdesc);
}
/**
@@ -473,6 +555,20 @@ lpfc_debug_dump_els_wq(struct lpfc_hba *phba)
}
/**
+ * lpfc_debug_dump_nvmels_wq - dump all entries from the nvme ls work queue
+ * @phba: Pointer to HBA context object.
+ *
+ * This function dumps all entries from the NVME LS work queue.
+ **/
+static inline void
+lpfc_debug_dump_nvmels_wq(struct lpfc_hba *phba)
+{
+ pr_err("NVME LS WQ: WQ[Qid:%d]:\n",
+ phba->sli4_hba.nvmels_wq->queue_id);
+ lpfc_debug_dump_q(phba->sli4_hba.nvmels_wq);
+}
+
+/**
* lpfc_debug_dump_mbx_wq - dump all entries from the mbox work queue
* @phba: Pointer to HBA context object.
*
@@ -530,6 +626,21 @@ lpfc_debug_dump_els_cq(struct lpfc_hba *phba)
}
/**
+ * lpfc_debug_dump_nvmels_cq - dump all entries from the nvme ls complete queue
+ * @phba: Pointer to HBA context object.
+ *
+ * This function dumps all entries from the nvme ls complete queue.
+ **/
+static inline void
+lpfc_debug_dump_nvmels_cq(struct lpfc_hba *phba)
+{
+ pr_err("NVME LS CQ: WQ[Qid:%d]->CQ[Qid:%d]\n",
+ phba->sli4_hba.nvmels_wq->queue_id,
+ phba->sli4_hba.nvmels_cq->queue_id);
+ lpfc_debug_dump_q(phba->sli4_hba.nvmels_cq);
+}
+
+/**
* lpfc_debug_dump_mbx_cq - dump all entries from the mbox complete queue
* @phba: Pointer to HBA context object.
*
@@ -566,10 +677,24 @@ lpfc_debug_dump_wq_by_id(struct lpfc_hba *phba, int qid)
return;
}
+ for (wq_idx = 0; wq_idx < phba->cfg_nvme_io_channel; wq_idx++)
+ if (phba->sli4_hba.nvme_wq[wq_idx]->queue_id == qid)
+ break;
+ if (wq_idx < phba->cfg_nvme_io_channel) {
+ pr_err("NVME WQ[Idx:%d|Qid:%d]\n", wq_idx, qid);
+ lpfc_debug_dump_q(phba->sli4_hba.nvme_wq[wq_idx]);
+ return;
+ }
+
if (phba->sli4_hba.els_wq->queue_id == qid) {
pr_err("ELS WQ[Qid:%d]\n", qid);
lpfc_debug_dump_q(phba->sli4_hba.els_wq);
}
+
+ if (phba->sli4_hba.nvmels_wq->queue_id == qid) {
+ pr_err("NVME LS WQ[Qid:%d]\n", qid);
+ lpfc_debug_dump_q(phba->sli4_hba.nvmels_wq);
+ }
}
/**
@@ -635,12 +760,31 @@ lpfc_debug_dump_cq_by_id(struct lpfc_hba *phba, int qid)
return;
}
+ /* Reset loop variant and search the NVME CQs. */
+ cq_idx = 0;
+ do {
+ if (phba->sli4_hba.nvme_cq[cq_idx]->queue_id == qid)
+ break;
+ } while (++cq_idx < phba->cfg_nvme_io_channel);
+
+ if (cq_idx < phba->cfg_fcp_io_channel) {
+ pr_err("NVME CQ[Idx:%d|Qid:%d]\n", cq_idx, qid);
+ lpfc_debug_dump_q(phba->sli4_hba.nvme_cq[cq_idx]);
+ return;
+ }
+
if (phba->sli4_hba.els_cq->queue_id == qid) {
pr_err("ELS CQ[Qid:%d]\n", qid);
lpfc_debug_dump_q(phba->sli4_hba.els_cq);
return;
}
+ if (phba->sli4_hba.nvmels_cq->queue_id == qid) {
+ pr_err("NVME LS CQ[Qid:%d]\n", qid);
+ lpfc_debug_dump_q(phba->sli4_hba.nvmels_cq);
+ return;
+ }
+
if (phba->sli4_hba.mbx_cq->queue_id == qid) {
pr_err("MBX CQ[Qid:%d]\n", qid);
lpfc_debug_dump_q(phba->sli4_hba.mbx_cq);
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index defc7f2..bb8093f 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -602,6 +602,79 @@ lpfc_nvme_adj_fcp_sgls(struct lpfc_vport *vport,
*wptr = *dptr; /* Word 23 */
}
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+static void
+lpfc_nvme_ktime(struct lpfc_hba *phba,
+ struct lpfc_nvme_buf *lpfc_ncmd)
+{
+ uint64_t seg1, seg2, seg3, seg4;
+
+ if (!phba->ktime_on)
+ return;
+ if (!lpfc_ncmd->ts_last_cmd ||
+ !lpfc_ncmd->ts_cmd_start ||
+ !lpfc_ncmd->ts_cmd_wqput ||
+ !lpfc_ncmd->ts_isr_cmpl ||
+ !lpfc_ncmd->ts_data_nvme)
+ return;
+ if (lpfc_ncmd->ts_cmd_start < lpfc_ncmd->ts_last_cmd)
+ return;
+ if (lpfc_ncmd->ts_cmd_wqput < lpfc_ncmd->ts_cmd_start)
+ return;
+ if (lpfc_ncmd->ts_isr_cmpl < lpfc_ncmd->ts_cmd_wqput)
+ return;
+ if (lpfc_ncmd->ts_data_nvme < lpfc_ncmd->ts_isr_cmpl)
+ return;
+ /*
+ * Segment 1 - Time from Last FCP command cmpl is handed
+ * off to NVME Layer to start of next command.
+ * Segment 2 - Time from Driver receives a IO cmd start
+ * from NVME Layer to WQ put is done on IO cmd.
+ * Segment 3 - Time from Driver WQ put is done on IO cmd
+ * to MSI-X ISR for IO cmpl.
+ * Segment 4 - Time from MSI-X ISR for IO cmpl to when
+ * cmpl is handled off to the NVME Layer.
+ */
+ seg1 = lpfc_ncmd->ts_cmd_start - lpfc_ncmd->ts_last_cmd;
+ if (seg1 > 5000000) /* 5 ms - for sequential IOs */
+ return;
+
+ /* Calculate times relative to start of IO */
+ seg2 = (lpfc_ncmd->ts_cmd_wqput - lpfc_ncmd->ts_cmd_start);
+ seg3 = (lpfc_ncmd->ts_isr_cmpl -
+ lpfc_ncmd->ts_cmd_start) - seg2;
+ seg4 = (lpfc_ncmd->ts_data_nvme -
+ lpfc_ncmd->ts_cmd_start) - seg2 - seg3;
+ phba->ktime_data_samples++;
+ 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;
+
+ lpfc_ncmd->ts_last_cmd = 0;
+ lpfc_ncmd->ts_cmd_start = 0;
+ lpfc_ncmd->ts_cmd_wqput = 0;
+ lpfc_ncmd->ts_isr_cmpl = 0;
+ lpfc_ncmd->ts_data_nvme = 0;
+}
+#endif
+
/**
* lpfc_nvme_io_cmd_wqe_cmpl - Complete an NVME-over-FCP IO
* @lpfc_pnvme: Pointer to the driver's nvme instance data
@@ -763,6 +836,23 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct
lpfc_iocbq *pwqeIn,
* no need for dma unprep because the nvme_transport
* owns the dma address.
*/
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on) {
+ lpfc_ncmd->ts_isr_cmpl = pwqeIn->isr_timestamp;
+ lpfc_ncmd->ts_data_nvme = ktime_get_ns();
+ phba->ktime_last_cmd = lpfc_ncmd->ts_data_nvme;
+ lpfc_nvme_ktime(phba, lpfc_ncmd);
+ }
+ if (phba->cpucheck_on & LPFC_CHECK_NVME_IO) {
+ if (lpfc_ncmd->cpu != smp_processor_id())
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR,
+ "6701 CPU Check cmpl: "
+ "cpu %d expect %d\n",
+ smp_processor_id(), lpfc_ncmd->cpu);
+ if (lpfc_ncmd->cpu < LPFC_CHECK_CPU_CNT)
+ phba->cpucheck_cmpl_io[lpfc_ncmd->cpu]++;
+ }
+#endif
nCmd->done(nCmd);
spin_lock_irqsave(&phba->hbalock, flags);
@@ -1068,11 +1158,18 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port
*pnvme_lport,
struct lpfc_nvme_buf *lpfc_ncmd;
struct lpfc_nvme_rport *rport;
struct lpfc_nvme_qhandle *lpfc_queue_info;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint64_t start = 0;
+#endif
lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
vport = lport->vport;
phba = vport->phba;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on)
+ start = ktime_get_ns();
+#endif
rport = (struct lpfc_nvme_rport *)pnvme_rport->private;
lpfc_queue_info = (struct lpfc_nvme_qhandle *)hw_queue_handle;
@@ -1126,6 +1223,12 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port
*pnvme_lport,
ret = -ENOMEM;
goto out_fail;
}
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on) {
+ lpfc_ncmd->ts_cmd_start = start;
+ lpfc_ncmd->ts_last_cmd = phba->ktime_last_cmd;
+ }
+#endif
/*
* Store the data needed by the driver to issue, abort, and complete
@@ -1169,6 +1272,28 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port
*pnvme_lport,
goto out_free_nvme_buf;
}
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on)
+ lpfc_ncmd->ts_cmd_wqput = ktime_get_ns();
+
+ if (phba->cpucheck_on & LPFC_CHECK_NVME_IO) {
+ lpfc_ncmd->cpu = smp_processor_id();
+ if (lpfc_ncmd->cpu != lpfc_queue_info->index) {
+ /* Check for admin queue */
+ if (lpfc_queue_info->qidx) {
+ lpfc_printf_vlog(vport,
+ KERN_ERR, LOG_NVME_IOERR,
+ "6702 CPU Check cmd: "
+ "cpu %d wq %d\n",
+ lpfc_ncmd->cpu,
+ lpfc_queue_info->index);
+ }
+ lpfc_ncmd->cpu = lpfc_queue_info->index;
+ }
+ if (lpfc_ncmd->cpu < LPFC_CHECK_CPU_CNT)
+ phba->cpucheck_xmt_io[lpfc_ncmd->cpu]++;
+ }
+#endif
return 0;
out_free_nvme_buf:
diff --git a/drivers/scsi/lpfc/lpfc_nvme.h b/drivers/scsi/lpfc/lpfc_nvme.h
index 6e44950..08ff374 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.h
+++ b/drivers/scsi/lpfc/lpfc_nvme.h
@@ -90,4 +90,11 @@ struct lpfc_nvme_buf {
wait_queue_head_t *waitq;
unsigned long start_time;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint64_t ts_cmd_start;
+ uint64_t ts_last_cmd;
+ uint64_t ts_cmd_wqput;
+ uint64_t ts_isr_cmpl;
+ uint64_t ts_data_nvme;
+#endif
};
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 446b6f5..e045850 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -13324,6 +13324,11 @@ lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
if (unlikely(!fpeq))
return IRQ_NONE;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ if (phba->ktime_on)
+ fpeq->isr_timestamp = ktime_get_ns();
+#endif
+
if (lpfc_fcp_look_ahead) {
if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
lpfc_sli4_eq_clr_intr(fpeq);
--
2.5.0
--
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