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From 9a0668e887dfab9df405d3b76286a1ee5ec3efaf Mon Sep 17 00:00:00 2001
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From: Noa Osherovich <noaos@mellanox.com>
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Date: Tue, 29 Nov 2016 10:12:31 +0200
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Subject: [PATCH rdma-core 3/6] ibverbs: Allow creation of QP with cvlan
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stripping offload
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Allow users to create a QP that uses cvlan stripping capabilities if
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supported by the hardware.
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Setting cvlan stripping offload will cause the device to strip the
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cvlan from incoming raw Ethernet packets and provide its data in the
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matching work completion.
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In addition, aligned ibv_create_qp_ex's man page with current code
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(added ibv_qp_create_flags enum).
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Signed-off-by: Noa Osherovich <noaos@mellanox.com>
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Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
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Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
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---
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libibverbs/cmd.c | 3 ++-
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libibverbs/man/ibv_create_qp_ex.3 | 8 ++++++++
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libibverbs/verbs.h | 1 +
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3 files changed, 11 insertions(+), 1 deletion(-)
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diff --git a/libibverbs/cmd.c b/libibverbs/cmd.c
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index b8fe76df..06ec6711 100644
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--- a/libibverbs/cmd.c
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+++ b/libibverbs/cmd.c
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@@ -926,7 +926,8 @@ static void create_qp_handle_resp_common(struct ibv_context *context,
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enum {
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CREATE_QP_EX2_SUP_CREATE_FLAGS = IBV_QP_CREATE_BLOCK_SELF_MCAST_LB |
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- IBV_QP_CREATE_SCATTER_FCS,
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+ IBV_QP_CREATE_SCATTER_FCS |
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+ IBV_QP_CREATE_CVLAN_STRIPPING,
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};
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int ibv_cmd_create_qp_ex2(struct ibv_context *context,
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diff --git a/libibverbs/man/ibv_create_qp_ex.3 b/libibverbs/man/ibv_create_qp_ex.3
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index c778d159..99ae4975 100644
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--- a/libibverbs/man/ibv_create_qp_ex.3
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+++ b/libibverbs/man/ibv_create_qp_ex.3
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@@ -52,6 +52,14 @@ uint32_t max_inline_data;/* Requested max number of data (bytes)
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.in -8
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};
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.nf
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+enum ibv_qp_create_flags {
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+.in +8
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+IBV_QP_CREATE_BLOCK_SELF_MCAST_LB = 1 << 1, /* Prevent self multicast loopback */
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+IBV_QP_CREATE_SCATTER_FCS = 1 << 8, /* FCS field will be scattered to host memory */
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+IBV_QP_CREATE_CVLAN_STRIPPING = 1 << 9, /* CVLAN field will be stripped from incoming packets */
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+.in -8
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+};
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+.nf
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struct ibv_rx_hash_conf {
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.in +8
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uint8_t rx_hash_function; /* RX hash function, use enum ibv_rx_hash_function_flags */
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diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
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index 33985666..c9084ea1 100644
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--- a/libibverbs/verbs.h
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+++ b/libibverbs/verbs.h
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@@ -780,6 +780,7 @@ enum ibv_qp_init_attr_mask {
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enum ibv_qp_create_flags {
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IBV_QP_CREATE_BLOCK_SELF_MCAST_LB = 1 << 1,
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IBV_QP_CREATE_SCATTER_FCS = 1 << 8,
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+ IBV_QP_CREATE_CVLAN_STRIPPING = 1 << 9,
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};
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struct ibv_rx_hash_conf {
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--
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2.12.1
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