From: Christoph Hellwig <hch@infradead.org>
To: Tom Talpey <tom@talpey.com>
Cc: Chuck Lever <chuck.lever@oracle.com>,
linux-nfs@vger.kernel.org, linux-rdma@vger.kernel.org
Subject: Re: [PATCH v1 2/2] svcrdma: DMA-sync the receive buffer in svc_rdma_recvfrom()
Date: Fri, 22 Jan 2021 17:26:47 +0000 [thread overview]
Message-ID: <20210122172647.GA241302@infradead.org> (raw)
In-Reply-To: <75a4edc8-791c-b98e-b943-0ebff8aa4b16@talpey.com>
On Fri, Jan 22, 2021 at 09:37:02AM -0500, Tom Talpey wrote:
> Is there an asynchronous version of ib_dma_sync?
No. These routines basically compile down to cache writeback and/or
invalidate instructions without much logic around them.
prev parent reply other threads:[~2021-01-22 17:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-21 20:52 [PATCH v1 0/2] Two small NFSD/RDMA scalability enhancements Chuck Lever
2021-01-21 20:53 ` [PATCH v1 1/2] svcrdma: Reduce Receive doorbell rate Chuck Lever
2021-01-21 20:53 ` [PATCH v1 2/2] svcrdma: DMA-sync the receive buffer in svc_rdma_recvfrom() Chuck Lever
2021-01-22 7:58 ` Christoph Hellwig
2021-01-22 14:37 ` Tom Talpey
2021-01-22 17:26 ` Christoph Hellwig [this message]
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