Sagi Grimberg a5e14ba334 mlx4: Expose correct max_sge_rd limit ...

mlx4 devices (ConnectX-2, ConnectX-3) 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.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

2015-12-08 12:42:44 -05:00

..

ah.c

IB/core: Use GID table in AH creation and dmac resolution

2015-10-21 23:48:17 -04:00

alias_GUID.c

net/mlx4_core: Modify port values when generting EQEs for VFs

2015-05-24 23:05:09 -04:00

cm.c

IB/mlx4: In mlx4_ib_demux_cm, print out GUID in host-endian order

2015-02-17 22:11:40 -08:00

cq.c

IB/mlx4: Remove old FRWR API support

2015-10-28 22:27:19 -04:00

doorbell.c

IB: Refactor umem to use linear SG table

2014-03-04 10:34:28 -08:00

Kconfig

IB/mlx4: Add dependency INET

2014-01-19 15:14:05 -08:00

mad.c

Merge branch 'wr-cleanup' into k.o/for-4.4

2015-10-28 22:23:34 -04:00

main.c

mlx4: Expose correct max_sge_rd limit

2015-12-08 12:42:44 -05:00

Makefile

IB/mlx4: Add iov directory in sysfs under the ib device

2012-09-30 20:33:39 -07:00

mcg.c

IB/core: Use GID table in AH creation and dmac resolution

2015-10-21 23:48:17 -04:00

mlx4_ib.h

IB/mlx4: Remove old FRWR API support

2015-10-28 22:27:19 -04:00

mr.c

IB/mlx4: Remove old FRWR API support

2015-10-28 22:27:19 -04:00

qp.c

IB/mlx4: Remove old FRWR API support

2015-10-28 22:27:19 -04:00

srq.c

IB/mlx4: Reset flow support for IB kernel ULPs

2015-02-09 14:03:53 -08:00

sysfs.c

IB/mlx4: Forbid using sysfs to change RoCE pkeys

2015-08-30 18:12:22 -04:00

user.h

mlx4: 64-byte CQE/EQE support

2012-11-26 10:19:17 -08:00