Sagi Grimberg 29ebbba744 IB/mlx5: Expose correct max_sge_rd limit ... commit 986ef95ecd upstream. mlx5 devices (Connect-IB, ConnectX-4, ConnectX-4-LX) has a limitation where rdma read work queue entries cannot exceed 512 bytes. A rdma_read wqe needs to fit in 512 bytes: - wqe control segment (16 bytes) - rdma segment (16 bytes) - scatter elements (16 bytes each) So max_sge_rd should be: (512 - 16 - 16) / 16 = 30. Reported-by: Christoph Hellwig <hch@lst.de> Tested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagig@grimberg.me> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-05-04 14:48:48 -07:00
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cmd.h	net/mlx5_core: Fix Mellanox copyright note	2015-04-02 16:33:42 -04:00
cq.h	net/mlx5_core: Fix trimming down IRQ number	2016-01-31 11:29:01 -08:00
device.h	IB/mlx5: Expose correct max_sge_rd limit	2016-05-04 14:48:48 -07:00
doorbell.h	net/mlx5_core: Fix Mellanox copyright note	2015-04-02 16:33:42 -04:00
driver.h	net/mlx5_core: Fix trimming down IRQ number	2016-01-31 11:29:01 -08:00
flow_table.h	net/mlx5: Ethernet resource handling files	2015-05-30 18:24:39 -07:00
mlx5_ifc.h	net/mlx5e: Added self loopback prevention	2015-11-15 18:43:40 -05:00
qp.h	net/mlx5_core: HW data structs/types definitions cleanup	2015-05-30 18:23:11 -07:00
srq.h	net/mlx5_core: Fix Mellanox copyright note	2015-04-02 16:33:42 -04:00
vport.h	net/mlx5_core: Fix static checker warnings around system guid query flow	2015-06-07 20:11:17 -07:00