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Mon, 09 Dec 2024 09:39:54 -0800 (PST) Received: from smc-140338-bm01 ([149.97.161.244]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-215f8e6042dsm75149445ad.87.2024.12.09.09.39.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Dec 2024 09:39:54 -0800 (PST) From: Fan Ni X-Google-Original-From: Fan Ni Date: Mon, 9 Dec 2024 17:39:51 +0000 To: alejandro.lucero-palau@amd.com Cc: linux-cxl@vger.kernel.org, netdev@vger.kernel.org, dan.j.williams@intel.com, martin.habets@xilinx.com, edward.cree@amd.com, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com, dave.jiang@intel.com, Alejandro Lucero Subject: Re: [PATCH v6 18/28] sfc: get endpoint decoder Message-ID: References: <20241202171222.62595-1-alejandro.lucero-palau@amd.com> <20241202171222.62595-19-alejandro.lucero-palau@amd.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241202171222.62595-19-alejandro.lucero-palau@amd.com> On Mon, Dec 02, 2024 at 05:12:12PM +0000, alejandro.lucero-palau@amd.com wrote: > From: Alejandro Lucero > > Use cxl api for getting DPA (Device Physical Address) to use through an > endpoint decoder. > > Signed-off-by: Alejandro Lucero > --- Reviewed-by: Fan Ni > drivers/net/ethernet/sfc/efx_cxl.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c > index 79b93d92f9c2..6ca23874d0c7 100644 > --- a/drivers/net/ethernet/sfc/efx_cxl.c > +++ b/drivers/net/ethernet/sfc/efx_cxl.c > @@ -120,6 +120,14 @@ int efx_cxl_init(struct efx_probe_data *probe_data) > goto err3; > } > > + cxl->cxled = cxl_request_dpa(cxl->cxlmd, true, EFX_CTPIO_BUFFER_SIZE, > + EFX_CTPIO_BUFFER_SIZE); > + if (IS_ERR_OR_NULL(cxl->cxled)) { > + pci_err(pci_dev, "CXL accel request DPA failed"); > + rc = PTR_ERR(cxl->cxlrd); > + goto err3; > + } > + > probe_data->cxl = cxl; > > return 0; > @@ -136,6 +144,7 @@ int efx_cxl_init(struct efx_probe_data *probe_data) > void efx_cxl_exit(struct efx_probe_data *probe_data) > { > if (probe_data->cxl) { > + cxl_dpa_free(probe_data->cxl->cxled); > cxl_release_resource(probe_data->cxl->cxlds, CXL_RES_RAM); > kfree(probe_data->cxl->cxlds); > kfree(probe_data->cxl); > -- > 2.17.1 > -- Fan Ni (From gmail)