Files
linux/include/linux
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
..
2015-10-01 12:48:11 -07:00
2015-10-17 21:22:08 -07:00
2015-10-07 18:08:15 +01:00
2015-08-27 20:47:09 +01:00
2015-10-27 19:34:54 -07:00
2015-08-03 12:01:54 -04:00
2015-11-06 17:50:42 -08:00
2015-11-07 10:40:47 -07:00
2015-10-07 16:02:49 -07:00
2015-09-04 16:54:41 -07:00
2015-09-08 15:35:28 -07:00
2015-10-18 10:14:39 -07:00
2015-10-31 19:05:59 -04:00
2015-10-30 01:47:27 -04:00
2015-09-08 15:35:28 -07:00
2015-10-23 05:44:28 -07:00
2015-08-27 19:40:58 -04:00
2015-10-01 15:06:43 +02:00
2015-10-13 19:01:25 +02:00
2015-11-09 15:11:24 -08:00
2015-08-18 15:49:15 -07:00
2015-07-28 08:50:42 +01:00
2015-10-27 18:55:31 -07:00
2015-11-06 17:50:42 -08:00
2015-10-20 22:10:45 +08:00
2015-07-21 10:39:05 -07:00
2015-08-17 13:32:56 -05:00
2015-09-10 13:29:01 -07:00
2015-09-10 13:29:01 -07:00
2015-11-06 17:50:42 -08:00
2015-09-13 11:27:30 +02:00
2015-10-09 17:00:32 -04:00
2015-10-06 17:08:19 +02:00
2015-10-22 08:59:18 -07:00
2015-09-10 15:36:59 -04:00
2015-11-05 14:36:09 -05:00
2015-08-17 11:25:28 -07:00
2015-10-01 09:57:59 -07:00
2015-10-19 01:01:21 +02:00
2015-11-20 16:19:54 -08:00
2015-11-04 09:56:16 -07:00
2015-11-13 20:34:33 -05:00
2015-09-08 15:35:28 -07:00