From: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Some user space application would like to do RSS on the inner packet
fields instead of the outer. When user will set the IBV_RX_HASH_INNER
bit with one of the other hash fields, then the RSS will be on the inner
packet.
Signed-off-by: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Reviewed-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
---
libibverbs/man/ibv_create_qp_ex.3 | 20 ++++++++++++++++++++
libibverbs/verbs.h | 3 ++-
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/libibverbs/man/ibv_create_qp_ex.3 b/libibverbs/man/ibv_create_qp_ex.3
index 865b5fe..bb2d1b6 100644
--- a/libibverbs/man/ibv_create_qp_ex.3
+++ b/libibverbs/man/ibv_create_qp_ex.3
@@ -72,6 +72,26 @@ uint64_t rx_hash_fields_mask; /* RX fields that should particip
.in -8
};
.fi
+
+.nf
+enum ibv_rx_hash_fields {
+.in +8
+IBV_RX_HASH_SRC_IPV4 = 1 << 0,
+IBV_RX_HASH_DST_IPV4 = 1 << 1,
+IBV_RX_HASH_SRC_IPV6 = 1 << 2,
+IBV_RX_HASH_DST_IPV6 = 1 << 3,
+IBV_RX_HASH_SRC_PORT_TCP = 1 << 4,
+IBV_RX_HASH_DST_PORT_TCP = 1 << 5,
+IBV_RX_HASH_SRC_PORT_UDP = 1 << 6,
+IBV_RX_HASH_DST_PORT_UDP = 1 << 7,
+/* When using tunneling protocol, e.g. VXLAN, then we have an inner (encapsulated packet) and outer.
+ * For applying RSS on the inner packet, then the following field should be set with one of the L3/L4 fields.
+*/
+IBV_RX_HASH_INNER = (1UL << 31),
+.in -8
+};
+.fi
+
.PP
The function
.B ibv_create_qp_ex()
diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
index ce18b50..0785c77 100644
--- a/libibverbs/verbs.h
+++ b/libibverbs/verbs.h
@@ -241,7 +241,8 @@ enum ibv_rx_hash_fields {
IBV_RX_HASH_SRC_PORT_TCP = 1 << 4,
IBV_RX_HASH_DST_PORT_TCP = 1 << 5,
IBV_RX_HASH_SRC_PORT_UDP = 1 << 6,
- IBV_RX_HASH_DST_PORT_UDP = 1 << 7
+ IBV_RX_HASH_DST_PORT_UDP = 1 << 7,
+ IBV_RX_HASH_INNER = (1UL << 31),
};
struct ibv_rss_caps {
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
