From: sagi@grimberg.me (Sagi Grimberg)
Subject: [PATCH v3 3/3] nvmet-rdma: support 16K inline data
Date: Thu, 31 May 2018 01:13:47 +0300 [thread overview]
Message-ID: <6200a1e0-08d0-7bbe-18dd-c39dd1c80dda@grimberg.me> (raw)
In-Reply-To: <eed2676a-a190-6362-1cc7-767ba481c4ae@opengridcomputing.com>
> Its ugly because registering an MR for the inline pages requires a
> connected QP to use the REG_MR WR.
No, why MR?
> Maybe I'll just split the needed
> pages across the remaining recv sge entries available?? IE if the device
> supports 5 recv sges, then 4 can be used for inline, and thus 4
> non-contiguous pages could be used.
That's what I had in mind...
> cxgb4, however, only support 4 recv
> sges, so it would only support 12K of inline with this implementation.
:(
> And perhaps there are rdma devices with even fewer recv sges?
>
> Do you have any other idea on how to avoid higher-order allocations?
Not really. I guess that we should be able to recv the user
inline_data_size. So maybe it would be ok if the we'd do that only if
we must?
next prev parent reply other threads:[~2018-05-30 22:13 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-29 18:26 [PATCH v3 0/3] NVMF/RDMA 16K Inline Support Steve Wise
2018-05-29 18:25 ` [PATCH v3 1/3] nvme-rdma: correctly check for target keyed sgl support Steve Wise
2018-05-29 20:23 ` Ruhl, Michael J
2018-05-30 14:39 ` Steve Wise
2018-05-30 15:11 ` Steve Wise
2018-05-30 21:37 ` Sagi Grimberg
2018-05-31 17:02 ` hch
2018-05-31 17:17 ` Steve Wise
2018-05-31 17:25 ` hch
2018-06-01 13:08 ` Steve Wise
2018-06-03 11:57 ` Sagi Grimberg
2018-06-03 18:27 ` Steve Wise
2018-06-04 12:01 ` Sagi Grimberg
2018-06-04 12:11 ` Christoph Hellwig
2018-06-04 12:17 ` Steve Wise
2018-06-04 13:52 ` Max Gurtovoy
2018-06-04 14:21 ` Steve Wise
2018-06-04 14:29 ` Max Gurtovoy
2018-06-04 14:31 ` Steve Wise
2018-06-04 14:37 ` Max Gurtovoy
2018-06-04 14:45 ` Steve Wise
2018-05-31 17:00 ` hch
2018-05-29 18:25 ` [PATCH v3 2/3] nvme-rdma: support up to 4 segments of inline data Steve Wise
2018-05-30 21:42 ` Sagi Grimberg
2018-05-30 21:46 ` Steve Wise
2018-05-29 18:25 ` [PATCH v3 3/3] nvmet-rdma: support 16K " Steve Wise
2018-05-30 15:49 ` Christopher Lameter
2018-05-30 16:46 ` Steve Wise
2018-05-30 17:02 ` Christopher Lameter
2018-05-30 21:45 ` Sagi Grimberg
2018-05-30 21:52 ` Steve Wise
2018-05-30 22:13 ` Sagi Grimberg [this message]
2018-05-30 22:26 ` Steve Wise
2018-06-03 8:39 ` Max Gurtovoy
2018-06-03 18:25 ` Steve Wise
2018-06-04 13:58 ` Max Gurtovoy
2018-06-04 14:18 ` Steve Wise
2018-06-05 8:52 ` Max Gurtovoy
2018-06-05 14:28 ` Steve Wise
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