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c6a21c3864
In the current code, the TX affinity is per RoCE device, which can cause unfairness between different contexts. e.g. if we open two contexts, and each open 10 QPs concurrently, all of the QPs of the first context might end up on the first port instead of distributed on the two ports as expected To overcome this unfairness between processes, we maintain per device TX affinity, and per process TX affinity. The allocation algorithm is as follow: 1. Hold two tx_port_affinity atomic variables, one per RoCE device and one per ucontext. Both initialized to 0. 2. In mlx5_ib_alloc_ucontext do: 2.1. ucontext.tx_port_affinity = device.tx_port_affinity 2.2. device.tx_port_affinity += 1 3. In modify QP INIT2RST: 3.1. qp.tx_port_affinity = ucontext.tx_port_affinity % MLX5_PORT_NUM 3.2. ucontext.tx_port_affinity += 1 Signed-off-by: Majd Dibbiny <majd@mellanox.com> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> |
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| .. | ||
| ah.c | ||
| cmd.c | ||
| cmd.h | ||
| cong.c | ||
| cq.c | ||
| devx.c | ||
| doorbell.c | ||
| flow.c | ||
| gsi.c | ||
| ib_rep.c | ||
| ib_rep.h | ||
| ib_virt.c | ||
| Kconfig | ||
| mad.c | ||
| main.c | ||
| Makefile | ||
| mem.c | ||
| mlx5_ib.h | ||
| mr.c | ||
| odp.c | ||
| qp.c | ||
| srq.c | ||