[dpdk-dev] [PATCH 1/2] ethdev: clarify what is included in generic byte statistics

[Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>]

From: Viacheslav Galaktionov <viacheslav.galaktionov@oktetlabs.ru>

Different hardware gathers statistics differently, so some general
rules need to be established.

Signed-off-by: Viacheslav Galaktionov <viacheslav.galaktionov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
---
 lib/librte_ethdev/rte_ethdev.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
index f5f8919186..a2dce7c161 100644
--- a/lib/librte_ethdev/rte_ethdev.h
+++ b/lib/librte_ethdev/rte_ethdev.h
@@ -240,6 +240,9 @@ void rte_eth_iterator_cleanup(struct rte_dev_iterator *iter);
  * Not all statistics fields in struct rte_eth_stats are supported
  * by any type of network interface card (NIC). If any statistics
  * field is not supported, its value is 0.
+ * All byte-related statistics do not include Ethernet FCS regardless
+ * of whether these bytes have been delivered to the application
+ * (see DEV_RX_OFFLOAD_KEEP_CRC).
  */
 struct rte_eth_stats {
 	uint64_t ipackets;  /**< Total number of successfully received packets. */
-- 
2.29.2