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From b17bf50a8542a77be1fab3713f7bfc0e57a9787a Mon Sep 17 00:00:00 2001
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From: Noa Osherovich <noaos@mellanox.com>
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Date: Mon, 5 Dec 2016 14:13:24 +0200
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Subject: [PATCH rdma-core 6/6] ibverbs: Add support for scatter FCS ability in
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WQ
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Enable the user to create a workqueue object with the scatter FCS
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offload.
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If this option is set, the FCS (Frame Check Sequence) field of an
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incoming raw Ethernet packet will be scattered into host memory along
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the packet payload as it appeared on the wire.
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Signed-off-by: Noa Osherovich <noaos@mellanox.com>
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Reviewed-by: Majd Dibbiny <majd@mellanox.com>
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Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
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---
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libibverbs/man/ibv_create_wq.3 | 3 ++-
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libibverbs/verbs.h | 5 +++--
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2 files changed, 5 insertions(+), 3 deletions(-)
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diff --git a/libibverbs/man/ibv_create_wq.3 b/libibverbs/man/ibv_create_wq.3
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index 9a541fea..4a8b83c5 100644
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--- a/libibverbs/man/ibv_create_wq.3
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+++ b/libibverbs/man/ibv_create_wq.3
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@@ -40,7 +40,8 @@ uint32_t create_flags /* Creation flags for this WQ, use en
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enum ibv_wq_flags {
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.in +8
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IBV_WQ_FLAGS_CVLAN_STRIPPING = 1 << 0, /* CVLAN field will be stripped from incoming packets */
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-IBV_WQ_FLAGS_RESERVED = 1 << 1,
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+IBV_WQ_FLAGS_SCATTER_FCS = 1 << 1, /* FCS field will be scattered to host memory */
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+IBV_WQ_FLAGS_RESERVED = 1 << 2,
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.in -8
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};
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.nf
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diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
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index 15e93b3e..3f5e9fe3 100644
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--- a/libibverbs/verbs.h
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+++ b/libibverbs/verbs.h
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@@ -675,7 +675,8 @@ enum ibv_wq_init_attr_mask {
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enum ibv_wq_flags {
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IBV_WQ_FLAGS_CVLAN_STRIPPING = 1 << 0,
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- IBV_WQ_FLAGS_RESERVED = 1 << 1,
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+ IBV_WQ_FLAGS_SCATTER_FCS = 1 << 1,
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+ IBV_WQ_FLAGS_RESERVED = 1 << 2,
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};
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struct ibv_wq_init_attr {
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@@ -685,7 +686,7 @@ struct ibv_wq_init_attr {
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uint32_t max_sge;
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struct ibv_pd *pd;
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struct ibv_cq *cq;
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- uint32_t comp_mask;
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+ uint32_t comp_mask; /* Use ibv_wq_init_attr_mask */
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uint32_t create_flags; /* use ibv_wq_flags */
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};
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--
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2.12.1
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