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path: root/include/linux/mlx4/qp.h
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2008-07-25mlx4_core: Add VLAN tag field to WQE control segment structYevgeny Petrilin
Add fields for VLAN tag and insert VLAN tag flag to the control section struct. These fields will be used for sending ethernet packets. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-23IB/mlx4: Add support for memory management extensions and local DMA L_KeyRoland Dreier
Add support for the following operations to mlx4 when device firmware supports them: - Send with invalidate and local invalidate send queue work requests; - Allocate/free fast register MRs; - Allocate/free fast register MR page lists; - Fast register MR send queue work requests; - Local DMA L_Key. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-22IB/mlx4: Rename struct mlx4_lso_seg to mlx4_wqe_lso_segRoland Dreier
Make the struct name consistent with other WQE segment struct types defined in <linux/mlx4/qp.h>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-25mlx4_core: Add helper to move QP to ready-to-sendYevgeny Petrilin
Avoid duplicating code in ethernet and FC modules. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mlx4: Add IPoIB LSO supportEli Cohen
Add TSO support to the mlx4_ib driver. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mlx4: Add IPoIB checksum offload supportEli Cohen
ConnectX devices support checksum generation and verification of TCP and UDP packets for UD IPoIB messages. This patch checks if the HCA supports this and sets the IB_DEVICE_UD_IP_CSUM capability flag if it does. It implements support for handling the IB_SEND_IP_CSUM send flag and setting the csum_ok field in receive work completions. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Ali Ayub <ali@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-02-08IB/mlx4: Use multiple WQ blocks to post smaller send WQEsJack Morgenstein
ConnectX HCA supports shrinking WQEs, so that a single work request can be made of multiple units of wqe_shift. This way, WRs can differ in size, and do not have to be a power of 2 in size, saving memory and speeding up send WR posting. Unfortunately, if we do this then the wqe_index field in CQEs can't be used to look up the WR ID anymore, so our implementation does this only if selective signaling is off. Further, on 32-bit platforms, we can't use vmap() to make the QP buffer virtually contigious. Thus we have to use constant-sized WRs to make sure a WR is always fully within a single page-sized chunk. Finally, we use WRs with the NOP opcode to avoid wrapping around the queue buffer in the middle of posting a WR, and we set the NoErrorCompletion bit to avoid getting completions with error for NOP WRs. However, NEC is only supported starting with firmware 2.2.232, so we use constant-sized WRs for older firmware. And, since MLX QPs only support SEND, we use constant-sized WRs in this case. When stamping during NOP posting, do stamping following setting of the NOP WQE valid bit. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-12IB/mlx4: Implement query QPJack Morgenstein
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-06-18IB/mlx4: Make sure inline data segments don't cross a 64 byte boundaryRoland Dreier
Inline data segments in send WQEs are not allowed to cross a 64 byte boundary. We use inline data segments to hold the UD headers for MLX QPs (QP0 and QP1). A send with GRH on QP1 will have a UD header that is too big to fit in a single inline data segment without crossing a 64 byte boundary, so split the header into two inline data segments. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-08IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adaptersRoland Dreier
Add an InfiniBand driver for Mellanox ConnectX adapters. Because these adapters can also be used as ethernet NICs and Fibre Channel HBAs, the driver is split into two modules: mlx4_core: Handles low-level things like device initialization and processing firmware commands. Also controls resource allocation so that the InfiniBand, ethernet and FC functions can share a device without stepping on each other. mlx4_ib: Handles InfiniBand-specific things; plugs into the InfiniBand midlayer. Signed-off-by: Roland Dreier <rolandd@cisco.com>