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Commit 09d208b2 authored by Guy Levi's avatar Guy Levi Committed by Doug Ledford
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IB/mlx4: Add report for RSS capabilities by vendor channel 



The mlx4's RSS patches submission missed a report of RSS capabilities
which should be reported by the vendor channel in query_device.

Signed-off-by: default avatarGuy Levi <guyle@mellanox.com>
Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent fec99ede

drivers/infiniband/hw/mlx4/main.c

+17 −0
Original line number Diff line number Diff line
@@ -581,6 +581,23 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, 
			sizeof(struct mlx4_wqe_data_seg);

	}



	if (uhw->outlen >= resp.response_length + sizeof(resp.rss_caps)) {

		resp.response_length += sizeof(resp.rss_caps);

		if (props->rss_caps.supported_qpts) {

			resp.rss_caps.rx_hash_function =

				MLX4_IB_RX_HASH_FUNC_TOEPLITZ;

			resp.rss_caps.rx_hash_fields_mask =

				MLX4_IB_RX_HASH_SRC_IPV4 |

				MLX4_IB_RX_HASH_DST_IPV4 |

				MLX4_IB_RX_HASH_SRC_IPV6 |

				MLX4_IB_RX_HASH_DST_IPV6 |

				MLX4_IB_RX_HASH_SRC_PORT_TCP |

				MLX4_IB_RX_HASH_DST_PORT_TCP |

				MLX4_IB_RX_HASH_SRC_PORT_UDP |

				MLX4_IB_RX_HASH_DST_PORT_UDP;

		}

	}



	if (uhw->outlen) {

		err = ib_copy_to_udata(uhw, &resp, resp.response_length);

		if (err)

drivers/infiniband/hw/mlx4/mlx4_ib.h

+11 −5
Original line number Diff line number Diff line
@@ -644,12 +644,18 @@ enum query_device_resp_mask { 
	QUERY_DEVICE_RESP_MASK_TIMESTAMP = 1UL << 0,

};



struct mlx4_ib_rss_caps {

	__u64 rx_hash_fields_mask; /* enum mlx4_rx_hash_fields */

	__u8 rx_hash_function; /* enum mlx4_rx_hash_function_flags */

	__u8 reserved[7];

};



struct mlx4_uverbs_ex_query_device_resp {

	__u32			comp_mask;

	__u32			response_length;

	__u64			hca_core_clock_offset;

	__u32			max_inl_recv_sz;

	__u32 reserved;

	struct mlx4_ib_rss_caps	rss_caps;

};



static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)