mirror of https://gitee.com/openkylin/linux.git
402ca53644
Enable mlx5 based hardware to report TCP segmentation offload (TSO) capabilities from kernel to user space. A TSO enabled NIC will accept big chunks of data with sizes greater than MTU for TCP traffic. The TSO engine will break the data into separate packets and will insert headers automatically. The capabilities are exposed to user space through query_device by uhw directly. The following capabilities are reported: 1. The maximum payload size in bytes supported for segmentation by TSO engine. 2. Bitmap showing which QP types are supported by TSO operation. The bitmap is built by members from 'enmu ib_qp_type'. For example, similar code should be performed if UD QP is supported: supported_qpts |= 1 << IB_QPT_UD; To make user-space library aware of whether kernel supports uhw or not, a new flag: cmds_supp_uhw will be returned back to user-space through alloc_ucontext. Signed-off-by: Bodong Wang <bodong@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| ah.c | ||
| cq.c | ||
| doorbell.c | ||
| gsi.c | ||
| ib_virt.c | ||
| mad.c | ||
| main.c | ||
| mem.c | ||
| mlx5_ib.h | ||
| mr.c | ||
| odp.c | ||
| qp.c | ||
| srq.c | ||
| user.h | ||