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Message-ID: <c0d289008b804e920913ca819f4049417336a56a.1701172481.git.leon@kernel.org>
Date: Tue, 28 Nov 2023 14:29:47 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Shun Hao <shunh@...dia.com>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
linux-rdma@...r.kernel.org,
netdev@...r.kernel.org,
Paolo Abeni <pabeni@...hat.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [PATCH mlx5-next 3/5] RDMA/mlx5: Support handling of SW encap ICM area
From: Shun Hao <shunh@...dia.com>
New type for this ICM area, now the user can allocate/deallocate
the new type of SW encap ICM memory, to store the encap header data
which are managed by SW.
Signed-off-by: Shun Hao <shunh@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
drivers/infiniband/hw/mlx5/dm.c | 5 +++++
drivers/infiniband/hw/mlx5/mr.c | 1 +
include/linux/mlx5/driver.h | 1 +
include/uapi/rdma/mlx5_user_ioctl_verbs.h | 1 +
4 files changed, 8 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/dm.c b/drivers/infiniband/hw/mlx5/dm.c
index 3669c90b2dad..b4c97fb62abf 100644
--- a/drivers/infiniband/hw/mlx5/dm.c
+++ b/drivers/infiniband/hw/mlx5/dm.c
@@ -341,6 +341,8 @@ static enum mlx5_sw_icm_type get_icm_type(int uapi_type)
return MLX5_SW_ICM_TYPE_HEADER_MODIFY;
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
return MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN;
+ case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
+ return MLX5_SW_ICM_TYPE_SW_ENCAP;
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
default:
return MLX5_SW_ICM_TYPE_STEERING;
@@ -364,6 +366,7 @@ static struct ib_dm *handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
switch (type) {
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
+ case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
if (!(MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner) ||
MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner) ||
MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner_v2) ||
@@ -438,6 +441,7 @@ struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
+ case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
return handle_alloc_dm_sw_icm(context, attr, attrs, type);
default:
return ERR_PTR(-EOPNOTSUPP);
@@ -491,6 +495,7 @@ static int mlx5_ib_dealloc_dm(struct ib_dm *ibdm,
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
+ case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
return mlx5_dm_icm_dealloc(ctx, to_icm(ibdm));
default:
return -EOPNOTSUPP;
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 7b7891116b89..12bca6ca4760 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1349,6 +1349,7 @@ struct ib_mr *mlx5_ib_reg_dm_mr(struct ib_pd *pd, struct ib_dm *dm,
case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
+ case MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM:
if (attr->access_flags & ~MLX5_IB_DM_SW_ICM_ALLOWED_ACCESS)
return ERR_PTR(-EINVAL);
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 4c576d19d927..cfcfa06bae18 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -688,6 +688,7 @@ enum mlx5_sw_icm_type {
MLX5_SW_ICM_TYPE_STEERING,
MLX5_SW_ICM_TYPE_HEADER_MODIFY,
MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN,
+ MLX5_SW_ICM_TYPE_SW_ENCAP,
};
#define MLX5_MAX_RESERVED_GIDS 8
diff --git a/include/uapi/rdma/mlx5_user_ioctl_verbs.h b/include/uapi/rdma/mlx5_user_ioctl_verbs.h
index 7af9e09ea556..3189c7f08d17 100644
--- a/include/uapi/rdma/mlx5_user_ioctl_verbs.h
+++ b/include/uapi/rdma/mlx5_user_ioctl_verbs.h
@@ -64,6 +64,7 @@ enum mlx5_ib_uapi_dm_type {
MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM,
MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM,
MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM,
+ MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM,
};
enum mlx5_ib_uapi_devx_create_event_channel_flags {
--
2.43.0
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