diff mbox series

[v4,1/2] nvme: Move adjustment of data_units{read,written}

Message ID 20221125094808.1856024-2-j.granados@samsung.com
State New
Headers show
Series Add OCP extended log to nvme QEMU | expand

Commit Message

Joel Granados Nov. 25, 2022, 9:48 a.m. UTC 
In order to return the units_{read/written} required by the SMART log we
need to shift the number of bytes value by BDRV_SECTORS_BITS and multiply
by 1000. This is a prep patch that moves this adjustment to where the SMART
log is calculated in order to use the stats struct for calculating OCP
extended smart log values.

Signed-off-by: Joel Granados <j.granados@samsung.com>
---
 hw/nvme/ctrl.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 87aeba0564..bf291f7ffe 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -4449,8 +4449,8 @@  static void nvme_set_blk_stats(NvmeNamespace *ns, struct nvme_stats *stats)
 {
     BlockAcctStats *s = blk_get_stats(ns->blkconf.blk);
 
-    stats->units_read += s->nr_bytes[BLOCK_ACCT_READ] >> BDRV_SECTOR_BITS;
-    stats->units_written += s->nr_bytes[BLOCK_ACCT_WRITE] >> BDRV_SECTOR_BITS;
+    stats->units_read += s->nr_bytes[BLOCK_ACCT_READ];
+    stats->units_written += s->nr_bytes[BLOCK_ACCT_WRITE];
     stats->read_commands += s->nr_ops[BLOCK_ACCT_READ];
     stats->write_commands += s->nr_ops[BLOCK_ACCT_WRITE];
 }
@@ -4464,6 +4464,7 @@  static uint16_t nvme_smart_info(NvmeCtrl *n, uint8_t rae, uint32_t buf_len,
     uint32_t trans_len;
     NvmeNamespace *ns;
     time_t current_ms;
+    uint64_t u_read, u_written;
 
     if (off >= sizeof(smart)) {
         return NVME_INVALID_FIELD | NVME_DNR;
@@ -4490,10 +4491,11 @@  static uint16_t nvme_smart_info(NvmeCtrl *n, uint8_t rae, uint32_t buf_len,
     trans_len = MIN(sizeof(smart) - off, buf_len);
     smart.critical_warning = n->smart_critical_warning;
 
-    smart.data_units_read[0] = cpu_to_le64(DIV_ROUND_UP(stats.units_read,
-                                                        1000));
-    smart.data_units_written[0] = cpu_to_le64(DIV_ROUND_UP(stats.units_written,
-                                                           1000));
+    u_read = DIV_ROUND_UP(stats.units_read >> BDRV_SECTOR_BITS, 1000);
+    u_written = DIV_ROUND_UP(stats.units_written >> BDRV_SECTOR_BITS, 1000);
+
+    smart.data_units_read[0] = cpu_to_le64(u_read);
+    smart.data_units_written[0] = cpu_to_le64(u_written);
     smart.host_read_commands[0] = cpu_to_le64(stats.read_commands);
     smart.host_write_commands[0] = cpu_to_le64(stats.write_commands);