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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: ampex.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN7PR20MB6109.namprd20.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2e8caa88-707a-400b-b798-08db501bb8c2 X-MS-Exchange-CrossTenant-originalarrivaltime: 08 May 2023 23:26:59.7031 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f19deace-5d78-4e17-894b-8b30e355df0b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: DqmRYizv0tYU4R/Z4X9JIsDOHcV93nxlRLW9BwfE1yBkXMd50I1WD4vWTi3/ESwvsnhEmorBCsg7H4B72ETY5Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW6PR20MB6741 X-Mailman-Approved-At: Tue, 09 May 2023 10:25:08 +0200 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org -----Original Message----- From: Bruce Richardson =20 Sent: Wednesday, May 3, 2023 11:18 AM To: Gilbert Carrillo Cc: dev@dpdk.org Subject: Re: DPDK 22.11 Troubleshooting On Wed, May 03, 2023 at 04:53:20PM +0000, Gilbert Carrillo wrote: > Make static returns an error (see attached). >=20 > v/R, > Gilbert > To help investigate this issue, can you perhaps include the text of the ful= l build output when you run "make static". On my system I see libelf listed= on the linker flags when I run "make static", and things link properly. I'= m wondering how my setup may differ from yours. /Bruce =20 > -----Original Message----- > From: Bruce Richardson > Sent: Wednesday, May 3, 2023 10:35 AM > To: Gilbert Carrillo > Cc: dev@dpdk.org > Subject: Re: DPDK 22.11 Troubleshooting >=20 > On Wed, May 03, 2023 at 04:22:05PM +0000, Gilbert Carrillo wrote: > > Hi Bruce, > >=20 > > Thank you for the response. > >=20 > > There is no errors when I run the makefile, however I do see a differen= ce in the programs. I don't believe the makefile is linking all the librari= es together as intended. > >=20 > > For example, when I run the ethtool sample program and compile it using= meson, it works fine and rte_eth_dev_count_avail() returns the correct amo= unt. However, when I compile ethtool with the makefile and run it rte_eth_d= ev_count_avail() returns 0. > >=20 >=20 > Note that by default the meson build will statically link the examples, w= hile the makefile will dynamically load the drivers at runtime. That may ex= plain the difference. Can you try building and running using "make static" = rather than just "make". >=20 > /Bruce Bruce, I had multiple versions of DPDK installed and I was linking the wrong one. = I was able to compile my application with CMAKE successfully. I had one last quick question. I am trying to achieve zero copy DMA from my= FPGA to my external buffer. Is this possible? I saw methods such as attach= ing an mbuf to the external buffer? But I wasn't sure if this was truly zer= o copy. -Gilbert