[EXT] Re: [PATCH v2] dmadev: get DMA device using device ID

[Amit Prakash Shukla]

> -----Original Message-----
> From: Jerin Jacob <jerinjacobk at gmail.com>
> Sent: Thursday, September 21, 2023 9:13 PM
> To: Amit Prakash Shukla <amitprakashs at marvell.com>
> Cc: Chengwen Feng <fengchengwen at huawei.com>; Kevin Laatz
> <kevin.laatz at intel.com>; Bruce Richardson <bruce.richardson at intel.com>;
> dev at dpdk.org; Jerin Jacob Kollanukkaran <jerinj at marvell.com>;
> conor.walsh at intel.com; Vamsi Krishna Attunuru <vattunuru at marvell.com>;
> g.singh at nxp.com; sachin.saxena at oss.nxp.com; hemant.agrawal at nxp.com;
> cheng1.jiang at intel.com; Nithin Kumar Dabilpuram
> <ndabilpuram at marvell.com>; Anoob Joseph <anoobj at marvell.com>;
> mb at smartsharesystems.com
> Subject: [EXT] Re: [PATCH v2] dmadev: get DMA device using device ID
> 
> External Email
> 
> ----------------------------------------------------------------------
> On Tue, Sep 19, 2023 at 5:12 PM Amit Prakash Shukla
> <amitprakashs at marvell.com> wrote:
> >
> > DMA library has a function to get DMA device based on device name but
> > there is no function to get DMA device using device id.
> >
> > Added a function that lookup for the dma device using device id and
> > returns the pointer to the same.
> 
> Looks like it is useful for getting nb_vchan. Could you use info_get() API
> instead as it can be cached in slow path for DMA adapter?

Yeah, we can cache nb_vchan using rte_dma_info_get. We can drop the patch. Thanks.