From: Jiri Pirko <jiri@resnulli.us>
To: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-rdma@vger.kernel.org, leon@kernel.org, mrgolin@amazon.com,
gal.pressman@linux.dev, sleybo@amazon.com, parav@nvidia.com,
mbloch@nvidia.com, yanjun.zhu@linux.dev,
marco.crivellari@suse.com, roman.gushchin@linux.dev,
phaddad@nvidia.com, lirongqing@baidu.com, ynachum@amazon.com,
huangjunxian6@hisilicon.com,
kalesh-anakkur.purayil@broadcom.com, ohartoov@nvidia.com,
michaelgur@nvidia.com, shayd@nvidia.com, edwards@nvidia.com,
sriharsha.basavapatna@broadcom.com,
andrew.gospodarek@broadcom.com, selvin.xavier@broadcom.com
Subject: Re: [PATCH rdma-next v3 13/17] RDMA/uverbs: Use UMEM attributes for QP creation
Date: Wed, 6 May 2026 16:17:55 +0200 [thread overview]
Message-ID: <aftNP9hAAzqrPmiw@FV6GYCPJ69> (raw)
In-Reply-To: <aftFko47Y56Gvsf3@ziepe.ca>
Wed, May 06, 2026 at 03:43:46PM +0200, jgg@ziepe.ca wrote:
>On Mon, May 04, 2026 at 03:57:27PM +0200, Jiri Pirko wrote:
>> @@ -340,6 +340,12 @@ DECLARE_UVERBS_NAMED_METHOD(
>> UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_QP_RESP_QP_NUM,
>> UVERBS_ATTR_TYPE(u32),
>> UA_MANDATORY),
>> + UVERBS_ATTR_UMEM(UVERBS_ATTR_CREATE_QP_BUF_UMEM,
>> + UA_OPTIONAL),
>> + UVERBS_ATTR_UMEM(UVERBS_ATTR_CREATE_QP_RQ_BUF_UMEM,
>> + UA_OPTIONAL),
>> + UVERBS_ATTR_UMEM(UVERBS_ATTR_CREATE_QP_SQ_BUF_UMEM,
>> + UA_OPTIONAL),
>> UVERBS_ATTR_UHW());
>
>could an ai make a summary of how each driver would map its existing
>umems to these - add it to the commit message?
>
>Trying to guess if it is general? RQ/SQ seem reasonable, but I'm
>wondering what drivers will use QP_BUF for...
BUF_UMEM is for shared RX/TX QP
[RS]Q_BUF_UMEM are for separete ones, like raw QP in mlx5.
Will document it.
next prev parent reply other threads:[~2026-05-06 14:17 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-04 13:57 [PATCH rdma-next v3 00/17] RDMA: Introduce generic buffer descriptor infrastructure for umem Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 01/17] RDMA/umem: Rename ib_umem_get() to ib_umem_get_va() Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 02/17] RDMA/umem: Split ib_umem_get_va() into a thin wrapper around __ib_umem_get_va() Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 03/17] RDMA/core: Introduce generic buffer descriptor infrastructure for umem Jiri Pirko
2026-05-06 13:37 ` Jason Gunthorpe
2026-05-06 14:14 ` Jiri Pirko
2026-05-12 18:12 ` Jason Gunthorpe
2026-05-13 19:18 ` Jiri Pirko
2026-05-13 23:34 ` Jason Gunthorpe
2026-05-14 9:02 ` Jiri Pirko
2026-05-14 12:14 ` Jason Gunthorpe
2026-05-15 15:31 ` Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 04/17] RDMA/umem: Route ib_umem_get_va() through ib_umem_get() Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 05/17] RDMA/uverbs: Inline _uverbs_get_const_{signed,unsigned}() Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 06/17] RDMA/uverbs: Push out CQ buffer umem processing into a helper Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 07/17] RDMA/uverbs: Add CQ buffer UMEM attribute and driver helpers Jiri Pirko
2026-05-06 13:46 ` Jason Gunthorpe
2026-05-06 14:27 ` Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 08/17] RDMA/efa: Use ib_umem_get_cq_buf() for user CQ buffer Jiri Pirko
2026-05-06 13:51 ` Jason Gunthorpe
2026-05-06 14:32 ` Jiri Pirko
2026-05-12 18:18 ` Jason Gunthorpe
2026-05-04 13:57 ` [PATCH rdma-next v3 09/17] RDMA/mlx5: Use ib_umem_get_cq_buf_or_va() " Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 10/17] RDMA/bnxt_re: " Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 11/17] RDMA/mlx4: Use ib_umem_get_cq_buf() " Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 12/17] RDMA/uverbs: Remove legacy umem field from struct ib_cq Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 13/17] RDMA/uverbs: Use UMEM attributes for QP creation Jiri Pirko
2026-05-06 13:43 ` Jason Gunthorpe
2026-05-06 14:17 ` Jiri Pirko [this message]
2026-05-04 13:57 ` [PATCH rdma-next v3 14/17] RDMA/mlx5: Use UMEM attributes for QP buffers in create_qp Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 15/17] RDMA/mlx5: Use UMEM attribute for CQ doorbell record Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 16/17] RDMA/mlx5: Use UMEM attribute for QP " Jiri Pirko
2026-05-04 13:57 ` [PATCH rdma-next v3 17/17] RDMA/uverbs: Track attr consumption and warn on unused attrs Jiri Pirko
2026-05-06 13:56 ` Jason Gunthorpe
2026-05-06 14:22 ` Jiri Pirko
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