scsi: lpfc: Add cmf_info sysfs entry
Allow abbreviated cm framework status information to be obtained via sysfs.
Link: https://lore.kernel.org/r/20210816162901.121235-14-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 3711707..6e742d3 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -5404,6 +5404,44 @@ lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
return port_speed;
}
+void
+lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
+{
+ struct rxtable_entry *entry;
+ int cnt = 0, head, tail, last, start;
+
+ head = atomic_read(&phba->rxtable_idx_head);
+ tail = atomic_read(&phba->rxtable_idx_tail);
+ if (!phba->rxtable || head == tail) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
+ "4411 Rxtable is empty\n");
+ return;
+ }
+ last = tail;
+ start = head;
+
+ /* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
+ while (start != last) {
+ if (start)
+ start--;
+ else
+ start = LPFC_MAX_RXMONITOR_ENTRY - 1;
+ entry = &phba->rxtable[start];
+ lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
+ "4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
+ "Lat %lld ASz %lld Info %02d BWUtil %d "
+ "Int %d slot %d\n",
+ cnt, entry->max_bytes_per_interval,
+ entry->total_bytes, entry->rcv_bytes,
+ entry->avg_io_latency, entry->avg_io_size,
+ entry->cmf_info, entry->timer_utilization,
+ entry->timer_interval, start);
+ cnt++;
+ if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
+ return;
+ }
+}
+
/**
* lpfc_cgn_update_stat - Save data into congestion stats buffer
* @phba: pointer to lpfc hba data structure.