From: Pavan Nikhilesh <pbhagavat...@marvell.com>
Add new Rx offload flag `DEV_RX_OFFLOAD_RSS_HASH` which can be used to
enable/disable PMDs write to `rte_mbuf::hash::rss`.
PMDs notify the validity of `rte_mbuf::hash:rss` to the applcation
by enabling `PKT_RX_RSS_HASH ` flag in `rte_mbuf::ol_flags`.
Signed-off-by: Pavan Nikhilesh <pbhagavat...@marvell.com>
Reviewed-by: Andrew Rybchenko <arybche...@solarflare.com>
---
doc/guides/nics/features.rst | 2 ++
doc/guides/rel_notes/release_19_11.rst | 7 +++++++
lib/librte_ethdev/rte_ethdev.c | 1 +
lib/librte_ethdev/rte_ethdev.h | 1 +
4 files changed, 11 insertions(+)
diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst
index 1756fa73a..f7c6d918f 100644
--- a/doc/guides/nics/features.rst
+++ b/doc/guides/nics/features.rst
@@ -274,6 +274,7 @@ Supports RSS hashing on RX.
* **[uses] user config**: ``dev_conf.rxmode.mq_mode`` =
``ETH_MQ_RX_RSS_FLAG``.
* **[uses] user config**: ``dev_conf.rx_adv_conf.rss_conf``.
+* **[uses] rte_eth_rxconf,rte_eth_rxmode**:
``offloads:DEV_RX_OFFLOAD_RSS_HASH``.
* **[provides] rte_eth_dev_info**: ``flow_type_rss_offloads``.
* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_RSS_HASH``, ``mbuf.rss``.
@@ -286,6 +287,7 @@ Inner RSS
Supports RX RSS hashing on Inner headers.
* **[uses] rte_flow_action_rss**: ``level``.
+* **[uses] rte_eth_rxconf,rte_eth_rxmode**:
``offloads:DEV_RX_OFFLOAD_RSS_HASH``.
* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_RSS_HASH``, ``mbuf.rss``.
diff --git a/doc/guides/rel_notes/release_19_11.rst
b/doc/guides/rel_notes/release_19_11.rst
index 7e31b9401..78ce0bc0e 100644
--- a/doc/guides/rel_notes/release_19_11.rst
+++ b/doc/guides/rel_notes/release_19_11.rst
@@ -64,6 +64,13 @@ New Features
* This scheme will allow PMDs to avoid lookup to internal ptype table on Rx
and thereby improve Rx performance if application wishes do so.
+* **Added Rx offload flag to enable or disable RSS update**
+
+ * Added new Rx offload flag `DEV_RX_OFFLOAD_RSS_HASH` which can be used to
+ enable/disable PMDs write to `rte_mbuf::hash::rss`.
+ * PMDs notify the validity of `rte_mbuf::hash:rss` to the applcation
+ by enabling `PKT_RX_RSS_HASH ` flag in `rte_mbuf::ol_flags`.
+
Removed Items
-------------
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 061de7ac5..6df2af6a6 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -129,6 +129,7 @@ static const struct {
RTE_RX_OFFLOAD_BIT2STR(KEEP_CRC),
RTE_RX_OFFLOAD_BIT2STR(SCTP_CKSUM),
RTE_RX_OFFLOAD_BIT2STR(OUTER_UDP_CKSUM),
+ RTE_RX_OFFLOAD_BIT2STR(RSS_HASH),
};
#undef RTE_RX_OFFLOAD_BIT2STR
diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
index 6c5fd789a..2bd7c27fc 100644
--- a/lib/librte_ethdev/rte_ethdev.h
+++ b/lib/librte_ethdev/rte_ethdev.h
@@ -1013,6 +1013,7 @@ struct rte_eth_conf {
#define DEV_RX_OFFLOAD_KEEP_CRC 0x00010000
#define DEV_RX_OFFLOAD_SCTP_CKSUM 0x00020000
#define DEV_RX_OFFLOAD_OUTER_UDP_CKSUM 0x00040000
+#define DEV_RX_OFFLOAD_RSS_HASH 0x00080000
#define DEV_RX_OFFLOAD_CHECKSUM (DEV_RX_OFFLOAD_IPV4_CKSUM | \
DEV_RX_OFFLOAD_UDP_CKSUM | \
--
2.17.1
