-----Original Message----- From: Ferruh Yigit <ferruh.yi...@intel.com> Sent: Tuesday, January 5, 2021 8:59 PM To: Pradeep Kumar Nalla <pna...@marvell.com> Cc: Jerin Jacob Kollanukkaran <jer...@marvell.com>; Satananda Burla <sbu...@marvell.com>; dev@dpdk.org Subject: Re: [EXT] Re: [dpdk-dev] [PATCH 00/15] Octeon Tx/Tx2 Endpoint pmd
On 1/5/2021 2:43 PM, Pradeep Kumar Nalla wrote: Please do not top post, reply moved below. > Thanks > Pradeep. > -----Original Message----- > From: Ferruh Yigit <ferruh.yi...@intel.com> > Sent: Monday, January 4, 2021 5:22 PM > To: Pradeep Kumar Nalla <pna...@marvell.com> > Cc: Jerin Jacob Kollanukkaran <jer...@marvell.com>; Satananda Burla > <sbu...@marvell.com>; dev@dpdk.org > Subject: [EXT] Re: [dpdk-dev] [PATCH 00/15] Octeon Tx/Tx2 Endpoint pmd > > External Email > > ---------------------------------------------------------------------- > On 12/31/2020 7:22 AM, Nalla, Pradeep wrote: >> From: "Nalla Pradeep" <pna...@marvell.com> >> >> This patch set contains PMD with minimal set of operations that can >> drive both Octeon Tx and Tx2 in endpoint. >> > > Hi Pradeep, > > There is already octeontx and octeontx2 net drivers, what is the difference > of the 'endpoint' driver, why it is needed, can you please give more > information? > > Hi Ferruh > > This PMD, while running on a host, drives octeontx/octeontx2 over pci bus, > where as "OcteonTx and OcteonTx2 net drivers" run on respective Tx/Tx2 SOCs > to make use of h/w blocks present on the SOC. > > But aren't they same HW block, either in the SoC or external ethernet > controller via PCI bus? No, this pmd doesn't access any h/w block on the soc. When in ep mode octeontx and octeontx2 present themselves as network devices and this pmd will program that interface and does packet rx/tx. > As far as I can see octeontx2 access the device via PCI bus, why updating the > existing driver and adding new device IDs is not working? OxteonTx2 access H/W blocks on soc which also appear as PCI devices.
