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mlx5-updates-2017-24-01

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The first seven patches from Or Gerlitz in this series further enhances
 the mlx5 SRIOV switchdev mode to support offloading IPv6 tunnels using the
 TC tunnel key set (encap) and unset (decap) actions.
 
 Or Gerlitz says:
 ========================
 As part of doing this change, few cleanups are done in the IPv4 code,
 later we move to use the full tunnel key info provided to the driver as
 the key for our internal hashing which is used to identify cases where
 the same tunnel is used for encapsulating multiple flows. As done in the
 IPv4 case, the control path for offloading IPv6 tunnels uses route/neigh
 lookups and construction of the IPv6 tunnel headers on the encap path and
 matching on the outer hears in the decap path.
 
 The last patch of the series enlarges the HW FDB size for the switchdev mode,
 so it has now room to contain offloaded flows as many as min(max number
 of HW flow counters supported, max HW table size supported).
 ========================
 
 Next to Or's series you can find several patches handling several topics.
 
 From Mohamad, add support for SRIOV VF min rate guarantee by using the
 TSAR BW share weights mechanism.
 
 From Or, Two patches to enable Eth VFs to query their min-inline value for
 user-space.
 for that we move a mlx5 low level min inline helper function from mlx5
 ethernet driver into the core driver and then use it in mlx5_ib to expose
 the inline mode to rdma applications through libmlx5.
 
 From Kamal Heib, Reduce memory consumption on kdump kernel.
 
 From Shaker Daibes, code reuse in CQE compression control logic
 
 Thanks,
 Saeed.
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Merge tag 'mlx5-updates-2017-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2017-24-01

The first seven patches from Or Gerlitz in this series further enhances
the mlx5 SRIOV switchdev mode to support offloading IPv6 tunnels using the
TC tunnel key set (encap) and unset (decap) actions.

Or Gerlitz says:
========================
As part of doing this change, few cleanups are done in the IPv4 code,
later we move to use the full tunnel key info provided to the driver as
the key for our internal hashing which is used to identify cases where
the same tunnel is used for encapsulating multiple flows. As done in the
IPv4 case, the control path for offloading IPv6 tunnels uses route/neigh
lookups and construction of the IPv6 tunnel headers on the encap path and
matching on the outer hears in the decap path.

The last patch of the series enlarges the HW FDB size for the switchdev mode,
so it has now room to contain offloaded flows as many as min(max number
of HW flow counters supported, max HW table size supported).
========================

Next to Or's series you can find several patches handling several topics.

From Mohamad, add support for SRIOV VF min rate guarantee by using the
TSAR BW share weights mechanism.

From Or, Two patches to enable Eth VFs to query their min-inline value for
user-space.
for that we move a mlx5 low level min inline helper function from mlx5
ethernet driver into the core driver and then use it in mlx5_ib to expose
the inline mode to rdma applications through libmlx5.

From Kamal Heib, Reduce memory consumption on kdump kernel.

From Shaker Daibes, code reuse in CQE compression control logic
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-01-25 12:49:58 -05:00
commit 716dcaebed
15 changed files with 389 additions and 120 deletions
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14
include/uapi/rdma/mlx5-abi.h
View file

@ -90,6 +90,17 @@ enum mlx5_user_cmds_supp_uhw {
MLX5_USER_CMDS_SUPP_UHW_CREATE_AH = 1 << 1,
};
/* The eth_min_inline response value is set to off-by-one vs the FW
* returned value to allow user-space to deal with older kernels.
*/
enum mlx5_user_inline_mode {
MLX5_USER_INLINE_MODE_NA,
MLX5_USER_INLINE_MODE_NONE,
MLX5_USER_INLINE_MODE_L2,
MLX5_USER_INLINE_MODE_IP,
MLX5_USER_INLINE_MODE_TCP_UDP,
};
struct mlx5_ib_alloc_ucontext_resp {
__u32 qp_tab_size;
__u32 bf_reg_size;
@ -106,7 +117,8 @@ struct mlx5_ib_alloc_ucontext_resp {
__u32 response_length;
__u8 cqe_version;
__u8 cmds_supp_uhw;
__u16 reserved2;
__u8 eth_min_inline;
__u8 reserved2;
__u64 hca_core_clock_offset;
__u32 log_uar_size;
__u32 num_uars_per_page;